US20130086933A1 - Controller for a medical products storage system - Google Patents
Controller for a medical products storage system Download PDFInfo
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- US20130086933A1 US20130086933A1 US13/268,148 US201113268148A US2013086933A1 US 20130086933 A1 US20130086933 A1 US 20130086933A1 US 201113268148 A US201113268148 A US 201113268148A US 2013086933 A1 US2013086933 A1 US 2013086933A1
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- Prior art keywords
- user
- event
- storage device
- medical product
- product storage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/36—Visual displays
- F25D2400/361—Interactive visual displays
Abstract
A medical product storage device includes a controller that operates an access control system to limit access to a storage space of the medical product storage device. The controller monitors a temperature in the storage space and other operating parameters of the medical product storage device. The medical product storage device includes a display that displays information related to the operating parameters. The information related to the operating parameters includes a graph of the temperature in the storage space, the graph including icons associated with specific events that occur relative to the operating parameters. Activation of the icons cause an event history to be displayed. Activation of a specific event permits a user to generate a corrective action record. A user remote from the medical product storage device may be notified of specific adverse events.
Description
- The present invention relates generally to a controller for a medical products storage system. More specifically, the present invention relates to a controller for a medical products storage system that includes automated notification of fault conditions and an enhanced user interface.
- Medical products including medications, tissues, and blood products are in limited supply and have a limited shelf life. Storage of medical products requires stringent controls to confirm that the products are of sufficient quality and that they have been maintained in a manner to confirm their safety for use. Controls must be in place along all steps of the collection, manufacturing, distribution, and administration of the medical products. The medical products move between storage locations at each step along the process, with each move a storage location providing opportunities for incorrect storage of the products. The products are usually stored in refrigerated cabinetry that operates to preserve the quality of the product stored by controlling the temperature within the compartments very carefully.
- Because of the high value of products stored in the medical product storage devices, malfunctions of the devices or improper operating conditions should be communicated to appropriate personnel as soon as possible to provide for remediation of any out-of-control conditions. In addition, records are kept to confirm that the operating characteristics of the storage devices have been within acceptable control limits, thereby confirming the proper storage of the medical products stored therein.
- The present application discloses one or more of the features recited in the appended claims and/or the following features which alone or in any combination, may comprise patentable subject matter.
- A medical product storage device comprises a storage space, a refrigeration unit, a controller, a user interface, and a temperature sensor. The refrigeration unit is operable to cool the storage space. The controller is electrically coupled to the refrigeration unit. The controller includes a processor and a memory device electrically coupled to the processor. The user interface includes a display and a user input device. The user interface is electrically coupled to the controller. The temperature sensor is electrically coupled to the controller. The temperature sensor communicates a temperature signal to the controller. The temperature signal is indicative of the temperature in the storage space. The controller is operable to generate an electronic record if the medical product storage device experiences an event that meets predetermined criteria for documentation. The controller is operable to allow a user to enter information related to the event, the user entered information being added to the record.
- In some embodiments, the information related to the event is unalterable after the information has been written to the record.
- In some embodiments, the event that meets predetermined criteria is a temperature in the storage space that is outside of an acceptable limit.
- In some embodiments, the controller is operable to generate an alarm when the event occurs.
- In some embodiments, the controller is operable to provide a notification to a user spaced apart from the medical product storage device.
- In some embodiments, the notification to the user is a message provided over a network connection between the controller and an external network.
- In some embodiments, the notification to the user is a message transmitted to the user through a wireless signal that communicates to a communication device associated with the user.
- In some embodiments, the user to whom the notification is communicated is selected from a list of potential contacts, the user selected according to predetermined criteria.
- In some embodiments, the predetermined criteria include the nature of the event about which the user is to be notified.
- In some embodiments, the controller reads the temperature signal and communicates the temperature signal to the user interface. In some embodiments, the user interface generates an image on the display that graphically displays the temperature as a function of time.
- In some embodiments, when the controller communicates the event to the user interface, the user interface graphically displays an icon representative of the event on the image with the location of the icon corresponding to the time of the event.
- In some embodiments, the user interface is operable to allow a user to operate the user input to activate the icon representative of the event to thereby display a record associated with the specific event.
- In some embodiments, the record of the event appears as an entry in a log of events and activation of any part of the record in the log causes the user interface to generate an image on the display that includes additional details of the record.
- In some embodiments, the additional details of the record include an action taken to resolve the event.
- In some embodiments, the refrigerator further comprises an electrically actuated access control device electrically coupled to the controller, the electrically actuated access control device operable to prevent access to the storage space under the control of the controller.
- In some embodiments, the user interface is operable to receive a password from a user permitting access to the storage space.
- In some embodiments, when a user accesses the storage space, a record is generated that includes information related to the user's access to the storage space. The information may include the the time and duration of the access.
- In some embodiments, the controller communicates the record wirelessly to an external device associated with a particular user.
- In some embodiments, the memory device includes instructions that, when executed by the processor, cause the processor to signal the user interface to display a first image on the display that indicates a graphical history of the temperature sensed by the temperature sensor.
- In some embodiments, the memory device includes instructions that, when executed by the processor, cause the processor to respond to the receipt of information that predetermined criteria for documentation of an event has been met to signal the user interface to display an icon indicative of the event that meets predetermined criteria for documentation on the image displayed.
- In some embodiments, the memory device includes instructions that, when executed by the processor, cause the processor to identify a user to be notified of the event, the user being identified based on criteria related to the event.
- In some embodiments, the memory device includes instructions that, when executed by the processor, cause the processor to generate a signal that is transmitted from the medical product storage device to a location that is remote from the medical product storage device to signal the event to the user.
- In some embodiments, the memory device includes instructions that, when executed by the processor, cause the processor to respond to a user input activating the icon by signaling the user interface to display a second image on the display that shows a list of events that have occurred over a period of time.
- In some embodiments, the memory device includes instructions that, when executed by the processor, cause the processor to respond to a user input activating one of the data items in the list of events by signaling the user interface to display a third image on the display that shows details regarding a specific event.
- In some embodiments, the memory device includes instructions that, when executed by the processor, cause the processor to respond to the user activating a first portion of the third image by permitting the user to input a cause associated with the specific event.
- In some embodiments, the memory device includes instructions that, when executed by the processor, cause the processor to respond to the user activating a second portion of the third image by permitting a user to input a corrective action associated with the specific event.
- In some embodiments, the memory device includes instructions that, when executed by the processor, cause the processor to respond to the user activating a third portion of the third image by permitting a user to enter to input a code associated with the user.
- In some embodiments, the memory device includes instructions that, when executed by the processor, cause the processor to respond to the user activating a fourth portion of the third image by permitting the user to save the input information to a record.
- Additional features and advantages of the invention will become apparent to those skilled in the art upon consideration of the following detailed description of illustrated embodiments exemplifying the best mode of carrying out the invention as presently perceived.
- The detailed description of the drawings particularly refers to the accompanying figures in which:
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FIG. 1 is a block diagram of a medical products storage device including access control; -
FIG. 2A-2B is a schematic diagram of the power portion of the electrical system of the medical products storage system ofFIG. 1 -
FIG. 3A-3B is a schematic diagram of the controller portion of the electrical system of the medical products storage system ofFIG. 1 ; -
FIG. 4 is a schematic diagram of a user interface of the medical products storage system ofFIG. 1 ; and -
FIGS. 5-23 are diagrammatic representations of screens displayed on a display device of the user interface of the medical products storage system. - A medical products storage device, illustratively embodied as a medical product storage device that operates at temperatures below freezing, is shown diagrammatically in
FIG. 1 . In some embodiments, the medical products storage device could be refrigerator, a freezer, a cooler, a platelet incubator, or an ultra low temperature freezer. For example, the i.C3 and i.D product families of products available from Helmer, Inc. of Noblesville, Ind. embody certain aspects of the present disclosure. The concepts disclosed herein are adaptable to various implementations of medical products storage devices. Referring now toFIG. 2 a, theillustrative freezer 10 receives AC power from amains power source 12. As will be described in further detail below, themains power source 12, after being filtered at afilter 13, provides AC power to a number of components of thefreezer 10. In certain embodiments, thefreezer 10 includes acircuit breaker 15 that interrupts the AC power under unsafe conditions. The refrigerator also includes amain switch 17 that allows a user to disconnect power from the remainder of the circuitry of thefreezer 10. - AC power is fed to a
power supply assembly 14 that includes aDC power supply 16 that converts the AC power to 12 V DC power. Thefreezer 10 also includes acontrol assembly 18 that receives DC power from theDC power supply 16. Thecontrol assembly 18 includes aprocessor 20 and amemory device 22 which cooperate to provide the logic control for thefreezer 10. Thecontrol assembly 18 is connected to auser interface control 24 to provide apower connection 26 and acommunications connection 28. Communication between thecontrol assembly 18 and theuser interface control 24 over thecommunications connection 28 is via a USB protocol. Thecontrol assembly 18 also includes an RS-232interface 30 that may be connected to other peripheral devices as will be understood by those of ordinary skill in the art. Thecontrol assembly 18 also communicates with anexterior alarm 32 through aconnection 34 so that alarm conditions detected by thecontrol assembly 18 may be communicated externally through theexterior alarm 32. - A condensing
unit 36 includes acompressor 38 and a condensingfan 40. Operation of the condensingunit 36 is controlled by thecontrol assembly 18 that operates acondenser relay 42 turn the condensingunit 36 on and off. The condenser relay receives power from themains power source 12 with thecondenser relay 42 being turned on and off by thecontrol assembly 18. Thecontrol assembly 18 includes arelay 44 that operates a unit cooler 46 that includesfans 48 to circulate the cool air within thecabinet 21 of thefreezer 10. Medical products are stored in a storage space defined by thecabinet 21. Thecontrol assembly 18 also includes a door heating elements relay 50 that operates a set ofdoors heating elements 52 as necessary to control the operation of thefreezer 10. The door heating elements relay 50 receives power from themains power source 12 and powers thedoors heating elements 52 under the control of thecontrol assembly 18. Similarly, acondenser evaporator 54 is operated by arelay 56 of thecontrol assembly 18 through aconnection 55. Alight assembly 58 includes apower supply 60 that receives AC power from themains power source 12 and converts it to 12 V DC power with the total power being controlled by thecontrol assembly 18 through arelay 62. Thecondenser evaporator 54 and thedoor heating elements 52 are used to defrost thefreezer 10. - The
freezer 10 also includes adoor lock 66 that includes asolenoid 68 that receives DC power from thepower supply assembly 14 and is controlled by thecontrol assembly 18 to lock and unlock the doors of thefreezer 10 to control access to thecabinet 21 to authorized individuals. It is contemplated that a more complex access control structure may be implemented that includes a multi-level access control approach such as the approach employed in U.S. Patent Application Publication 2011-0202170-A1, titled “ACCESS AND INVENTORY CONTROL FOR CLIMATE CONTROLLED STORAGE,” which hereby incorporated by reference herein. The status of the doors (not shown) are monitored bydoor switches 70 which sense when the door or doors of thefreezer 10 are closed and provide that signal as an input to thecontrol assembly 18. Thecontrol assembly 18 also receives inputs from a number of probes that monitor a number of operating characteristics of thefreezer 10. An upperchamber temperature probe 72 monitors the temperature inside the cabinet of thefreezer 10. Awater bottle probe 74 monitors the volume of water in a water bottle 76. The water bottle 76 is used as a temperature stabilizer in the cabinet of thefreezer 10. A lowerchamber temperature probe 78 monitors the temperature in the lower portion of thecabinet 21 of thefreezer 10. Acondenser discharge probe 80 monitors the presence of fluid in the condenser discharge (not shown). - The
freezer 10 also includes achart recorder 82 that receives power through thecontrol assembly 18 from thepower supply assembly 14. Thechart recorder 82 is also connected to abattery 84 that provides backup power to thechart recorder 82 in the event of a power loss from themains power source 12. Thechart recorder 82 is connected to anindependent temperature probe 86 which provides a signal indicative of the temperature in the cabinet of thefreezer 10 to thechart recorder 82 which then mechanically marks the measured temperature on a paper graph provide a record of the temperature insidefreezer 10 as a back-up to the electrically monitored signal. - The
user interface control 24 includes atest port connection 88 that allows a user to connect an external device such as a laptop, for example, to thefreezer 10 to access the control system 100 of thefreezer 10 for maintenance. In addition, the user interface control is connected to aspeaker 90 so that audible alarms can be generated through thespeaker 90 by theuser interface control 24. Theuser interface control 24 also includes a universal serial bus (USB)port 92 that is externally accessible by a user to connect to theuser interface control 24 and, thereby thecontrol assembly 18 through thecommunications connection 28 between theuser interface control 24 andcontrol assembly 18. The USB connection may also be used to connect thefreezer 10 to an external network accessible remotely from thefreezer 10. For example, the USB connection may be used to connect to control system 100 to a network of medical products storage devices that are monitored at a central location. For example, medical products storage devices may be distributed throughout a hospital and in communication with a central monitoring station in the hospital pharmacy or materials control departments. While theillustrative port 92 utilizes a USB communications protocol, it should be understood that any of a number of communications protocols could be adapted to thefreezer 10 to allow the control system 100 to communicate with a network. For example, the control system 100 may include an Ethernet connection that allows the control system 100 to connect to a network. The user interface control includes aprocessor 94 andmemory 96 which allow the user interface control to communicate with thecontrol assembly 18 and to operate atouchscreen display 98 that is illustratively embodied as an LCD touchscreen device. Theuser interface control 24 is in communication with thetouchscreen display 98 through aperipheral connection 102 and provides backlighting power to thetouchscreen display 98 through apower connection 104. - Those of ordinary skill in the art will readily recognize the flexibility afforded by a user interface that includes a touchscreen display such as the
touchscreen display 98. Other methods of activating icons on a display are known by those of skill in the art to include mouse, rollerball, joysticks or the like in conjunction with the separate input devices such as keyboards or buttons and the like. The present disclosure should not be considered to be limited to the use of touchscreens exclusively. Various images displayed on the display screen of thefreezer 10 will be discussed in more detail below. In normal operation, a home screen image similar to the screen shown inFIG. 5 , will be displayed and provide the temperature detected by the upperchamber temperature probe 72 as indicated byreference numeral 108. In the upper right of the screen is shown amute icon 106 which may be toggled on and off to allow a user to mute any audible alarms generated by thespeaker 90. Shown to the left of themute icon 106 is alight icon 110 which allows a user to toggle the interior light 64 on and off by activating thelight icon 110. The current time and date is indicated in the upper middle of the display screen as indicated byreference numeral 114. The upper left corner of the display screen is used to display alarm conditions by displaying a flag as indicated by thereference numeral 116. In the illustrative embodiment, the display screen displays images in color. For example, in the illustrative embodiment, theflag 116 may be a red flag to indicate a serious alarm condition. Other colors may be used to provide a user with additional information regarding the state of thefreezer 10. For example, in some embodiments a yellow flag may indicate a condition that will become an alarm if not addressed. When in the home screen shown inFIG. 5 , the lower one third of the display screen displays five icons which each may be activated by a user to cause thecontrol system 18 to generate an image of a specified application associated with a respective icon. A user selects various functions associated with the icons by activating the icon. Activation of the icon in the illustrative embodiment includes simply touching the icon. In other embodiments where the user interface is not a touchscreen, the icon may be chosen by some other method, such as by a cursor controlled by a mouse, trackball, or some other input device as discussed above. - Activation of an
applications icon 118 causes the display to generate an image of an applications screen similar to that shown inFIG. 6 . The application screen image ofFIG. 6 displays a number of icons, including anicon 120 that is associated with a settings page. Prior to displaying the settings page, a password screen is displayed as shown inFIG. 7 . A user must enter a numeric password using avirtual keypad 122 shown inFIG. 7 . Password access prevents unauthorized users from accessing and modifying thefreezer 10 settings. -
FIGS. 8-10 illustrate various screenshots that are used to choose the settings of the operational characteristics of the control system 100. A user is able to scroll through the various screenshots shown inFIGS. 8-10 by activating thevertical scrollbar 124 to move up and down through the settings screen with only a portion of the adjustable characteristics being shown at any given time. As indicated at reference numeral 126 a user may change the password by activating thebutton 126, entering a value on a keypad that is displayed, and saving the new password. Sounds may be turned off by activating abutton 128 and turned on by activating abutton 130. The alarm volume may be adjusted by activating theright side 132 of a spin box for alarm volume to increase the alarm volume or by activating theleft side 134 of the spin box to reduce the volume. The term spin box is used to indicate a group of associated icons that allow a user to increase and decrease a displayed value by activating on or the other ofright side 132 andleft side 134 of a spin box. Additional spin boxes will be discussed throughout the remainder of the disclosure without specific reference to theright side 132 andleft side 134, but each operates in a similar manner. One of four alarm tones may be chosen by adjusting the alarm tone atspin box 136. Activation oficon 138 allows a user to try the alarm tone to determine if the alarm tone is acceptable. - Activation of
icon 140 allows a user to transfer to a temperature calibration screen that is discussed in further detail below with regard toFIG. 12 . Activation oficon 142 transfers to an identification screen where user is permitted to enter 10 alphanumeric characters to provide a unique unit ID number for thefreezer 10. The unit ID number is indicated in the information header shown inFIG. 5 byreference numeral 144. In the illustrative embodiment, the unit ID number is defaulted to be the serial number of theparticular freezer 10 as assigned by the factory. - Activation of the
icon 144 activates the date and time screen that will be discussed in further detail below with regard toFIG. 13 . Activation oficon 146 provides a drop-down menu (not shown) to allow a user to select a language for the display. In the illustrative embodiment, the default language is English. Activation of anicon 148 causes the temperature to be displayed in the units of degrees Fahrenheit while activation of anicon 150 will change the temperature to be displayed in units of degrees Celsius. Activation of anicon 152 deactivates password protection off while activation oficon 154 activates password protection. The user may also turn a light delay on or off by activatingicons spin box 160 when the light off delay is turned on. - Referring now to
FIG. 10 , activation of anicon 162 causes an alarms settings screen to be displayed as will be discussed in further detail below with regard toFIG. 11 . Similarly, activation of an icon 164 causes the activation of a temperature control screen that will be discussed in further detail below with regard toFIGS. 14-17 . Activation of the icon 166 causes all of the factory settings to be restored. Activation oficons icon icon 176 or may return to the home screen by activating anicon 178. - Referring now to
FIG. 11 , when theicon 162 shown inFIG. 10 is activated, a screen image similar to that shown inFIG. 11 is activated to allow a user to modify certain alarm settings. Activation of aspin box 180 allows a user to change the high temperature set point. The set point temperature is adjustable in increments of tenths of a degree. Aspin box 182 is used to set a time delay for the high temperature alarm that occurs when the high temperature set point is reached. The time delay may be adjusted in minutes and indicates the amount of time that the high temperature conditions must be met before the alarm is activated. Thestatus flag 116 may be displayed in yellow while high temperature condition exists but prior to the alarm delay time. Once the alarm condition is met, thestatus flag 116 may be changed to red to indicate the alarm condition. Thespin box 184 allows a user to adjust the low temperature alarm set point and thespin box 186 provides for the adjustment of the time delay required before the low temperature alarm condition will generate an actual alarm. - Other alarm conditions such as power failure, probe failure, or a door open condition each are identified as an alarm event that is logged. However, each alarm event includes an adjustable time delay before the alarm event is actually signaled as an alarm condition to a user. The
spin box 188 is used to set the time delay for the power failure condition; thespin box 190 is used to adjust the delay for a probe failure. The door-opened time may be adjusted using aspin box 192 that defines the period of time a door is allowed to be opened before alarm condition is signal to a user. In addition, the compressor temperature set point may be adjusted using aspin box 194 with aspin box 196 being used to define the time delay for the alarm condition for the compressor temperature set point. In some embodiments, the system may measure the number of times a door is opened and assign alarm conditions to that value. In some embodiments, an agitator may be positioned in the cabinet of thefreezer 10 and the motion of the agitator may be monitored. A structure which utilizes an agitator is disclosed in U.S. Pat. No. 7,638,100, which is incorporated by reference herein. When the agitator motion stops unexpectedly, an alarm may be generated and the alarm condition signal may be time delayed as explained with regard to the other alarms discussed above. In still yet other embodiments, the pressure sensor may be used to monitor refrigerant pressure and when the refrigerant pressure drops below an acceptable level, the alarm condition signal may be generated. The refrigerant pressure alarm may also include a time delay that must be met before the alarm condition will be communicated to a user. - When the
temperature calibration icon 140 shown inFIG. 8 is activated, a screen image similar to that shown inFIG. 12 is displayed. In the temperature calibration screen shown inFIG. 12 , the temperature settings at each temperature probe are adjusted to match the actual temperature measured from an independent thermometer. Aspin box 198 is used to calibrate a control sensor. Aspin box 200 may be used to adjust an offset from the control sensor temperature value. Spinboxes spin box 206 with an offset being adjusted using aspin box 208. The temperature detected by a compressor probe is calibrated using aspin box 210. - When the time and
date icon 144 shown inFIG. 9 is activated, the screen shown inFIG. 13 is displayed so that a user may adjust various parameters associated with the time and date displays. A user selects between a month, day, year display by activatingicon 212 or a day, month, year display by activating anicon 214. The time can be displayed in either a 12-hour format by activatingicon 216 or a military format by selecting anicon 218. The day of the month is selected by using aspin box 220 while the numerical value for the month is selected using aspin box 222. The correct year is selected using aspin box 224. The hour of day is selected using aspin box 226 while the minute is selected using thespin box 228. The user selects AM by activating anicon 230 PM by activating anicon 232. Once the correct time and date information has been entered, a user saves the information and returns to the settings screen by activating anicon 234. - When the icon 164 shown in
FIG. 10 is activated, the temperature set points screen shown inFIGS. 14-16 is displayed. The temperature set points screen includes avertical scrollbar 124 to allow user to move between the information shown in each of theFIGS. 14-16 . The temperature set point is adjusted by using aspin box 240 to set the target temperature for the cabinet of thefreezer 10. A hysteresis set point is adjusted by activation of aspin box 242. The hysteresis set point determines when the compressor will turn on and off by defining the band about the temperature set point that controls operation of the compressor. A hysteresis set point of 2° C. will cause the compressor to turn on when the actual temperature exceeds the temperature set point by 1° C. and will cause the compressor to turn off when the actual temperature is 1° C. below the temperature set point thereby defining a band of 2° C. about the temperature set point. Aspin box 244 is used to adjust a time of delay before startup of the compressor. This delay is used only in the event of a power interruption to delay the time that the compressor startup after the power is recovered. - A
spin box 246 is used to adjust the fan-operating mode between one of three modes. In mode one, the fan runs if the compressor output is on. In mode one, after a defrost cycle, the fan output is off until the fan delay time is met. The fan delay time is adjusted byspin box 250. In mode two, the fan runs continuously except during defrost and for the period of the fan delay after defrost adjusted byspin box 250. In mode three, the fan runs as the compressor output is on and it runs during defrost. Aspin box 248 is used to adjust a fan stop temperature that is the temperature below which the fan will not run. - Referring now to
FIG. 15 aspin box 252 is used to adjust the temperature at which the defrost will be terminated. The defrost is terminated whenever the evaporator sensor temperature exceeds the set parameter, as set byspin box 252. A defrost event may be scheduled by turning on thedefrost event # 1 by activatingicon 254. Thespin box 258 is used to adjust the time of day at which thedefrost event # 1 occurs. If thedefrost event # 1 is no longer necessary, it can be turned off by activatingicon 256.Icons defrost event # 2 on and off respectively, with the time of thedefrost event # 2 being adjusted byspin box 264.Icons defrost event # 3 with the time of the #3 being adjusted by aspin box 270.Icons defrost event # 4 with the time of the #4 being adjusted by aspin box 276. Aspin box 278 is used to adjust the maximum time a defrost event can last before it is automatically terminated. This prevents the control system 100 from maintaining the defrost heating elements in an on condition indefinitely due to some error or failure. - Referring now to
FIG. 16 , aspin box 280 is used to delay the refrigeration cycle after a defrost event. This time allows the system to drain any liquid that results from the defrost event so that it does not refreeze in the drain line. A manual defrost cycle may be started by activating anicon 282 and stopped by activating anicon 284. Aspin box 286 is used to adjust a duty cycle at which the compressor will operate if one of the probes has an error. Thus, the compressor can operate continuously or at some intermittent rate depending on the parameter value set inspin box 286. This will cause the compressor to operate to continue to cool the cabinet of thefreezer 10 without any temperature feedback. - Referring now to
FIG. 17 , when anicon 290 shown inFIG. 5 is activated the control system 100 causes the screen shown inFIG. 17 to be displayed. The access control screen shown inFIG. 17 includes anumeric keypad 292 which a user uses to enter a password or PIN at alocation 294. When an appropriate password is entered, the system will unlock to allow users to access the cabinet of thefreezer 10. Because the password is associated with a particular user, actions taken by that user are saved to a log that will be discussed in further detail below, with the actions associated with the user. This is useful to assist with tracking and addressing actions that may require a corrective response, such as improper control procedures or changes to operating parameters of thefreezer 10. - The
display 98 may also be used to provide a visual display of key information related to the operation of thefreezer 10. The screen shown inFIG. 18 is a temperature display that shows the historical temperature of the cabinet of thefreezer 10 graphically. The time period of the graph may be altered between one day, by activatingicon 298, or seven days, by activatingicon 300. In the illustrative example shown inFIG. 18 , the historical temperature in the cabinet is shown over a single day with adverse events being marked by twoicons icons line 306 and the low temperature limit is indicated by aline 308. Intervals of time are displayed on theline 306 with the day and date of the graph indicated at 310. Additional operational permission is provided at astatus line 312. In addition, adefrost icon 314 is displayed on the graph to show when a defrost event has occurred. - Activation of either
icon display 98 to display an event log screen similar to that shown inFIG. 19 . As can be seen inFIG. 19 , the event log displays information related to the type of the event, the date of the event, the start time of the event, the start temperature of the event, the in time of the event, the end temperature of the event, and whether a corrective action was taken as indicated by anicon 316. Activation of an upicon 318 or downicon 320 allows a user to scroll through the various events in the event log. Events that may be logged to include: high temperature; low temperature; door open time; power failure; probe failure; date/time change; and alarm test; a defrost; excessive door openings; compressor temperature alarm; refrigerant pressure alarm; failed agitator motion; a no battery alarm; low battery alarm; communication failure; and a power up event. The power up event is not associated with an alarm but occurs on any reset caused by a power failure without battery backup, a watchdog reset of the microprocessor, or inactivation of a reset circuit on the controller. In the illustrative embodiment, alarms that are in progress at the time of the power failure will shown in time that corresponds to the start time of the power up of the system. If an alarm condition still exists when the power up event completes, that a new alarm is triggered with a start time that corresponds to the end time of the power up event. Details regarding the event may be accessed by activating the event line that then causes thedisplay 98 to display an event log detail screen similar to that shown inFIG. 20 . - The event log detail screen includes additional information relating to the operation of the
freezer 10 at the time of the event. In addition, a user is able to acknowledge the event and identify corrective actions taken related to the event. Specifically, the user may select a drop-down menu 322 to identify the cause of the alarm. Multiple alarm causes are listed in the drop-down menu or a user may select “Other” to activate a QWERTY keyboard to enter a cause of the alarm. A drop-down menu 344 is used to select an action taken to respond to the alarm with several corrective actions listed in the drop-down menu. A user may select “Other” under the action taken to activate a QWERTY keyboard to enter a specific corrective action not otherwise listed in the drop-down menu. By selecting anicon 326, a user activates a QWERTY keyboard display that allows the user to provide an input for their name or initials. Activation of anicon 328 allows the user to save the corrective action. Once a corrective action has been saved, it cannot be edited so that a corrective action cannot be modified later. - Activation of the
icon 314 inFIG. 18 will cause the defrost log to be displayed on thedisplay 98. An example image of a defrost log is shown inFIG. 21 and includes the date, start time, in time, upper probe maximum temperature, lower probe maximum temperature, and maximum compressor temperature as well as the number of times the door was opened during the defrost event. This information is useful to the user for determining the root cause of any issues that may have been created by or during the defrost event. Other log screens that may be accessible include an access log as shown inFIG. 22 , or an agitator log (not shown). - The access control setup screen is accessed by activating an
icon 342 shown inFIG. 6 that causes thedisplay 98 to display a screen image similar to that shown inFIG. 23 . The access control setup screen ofFIG. 23 displays a listing of user IDs atcolumn 336 and the personal identification number (PIN) associated with each user atcolumn 338. Activation of anicon 330 causes a data entry screen (not shown) to be displayed permit a user to be added including the user identification (ID) and an associated PIN. A user may be deleted by activatingicon 332 or the users PIN may be edited by activating anicon 334. The control system 100 includes a single supervisory PIN that is available only to authorized individuals. - The control system 100 also includes the capability of downloading logged data with one, two, three, or four months of data available for downloading. Information included in any of the logs may be downloaded to memory device attached to
USB port 92. In the illustrative embodiment, the data is downloaded as a .CSV file type. In addition, information may be uploaded to update the software of the control system 100 by inserting a memory device in theUSB port 92 and activating and upload icon (not shown). Software uploaded could include new options for the control system 100 or software updates. - The
control assembly 18 also includes atransceiver 19 illustratively embodied as a radio transceiver which is operable to broadcast event information to an extra receiver to notify a user who is not a proximate thefreezer 10 of any alarm conditions experienced by thefreezer 10. Thetransmitter 19 of the illustrative embodiment sends a cellular text message to a user or user group depending on parameters defined in the control system 100. For example, all alarms may be sent to a single individual. Alarms may be configured to be transmitted to the user logged in to the access control system. Event information may also be configured to be sent to specific individuals based on the type of the event or alarm so that the appropriate personnel can respond. In some embodiments, thetransceiver 19 may detect the presence of a radio frequency identification (RFID) emitter in proximity to thefreezer 10 and provide access to the control system 100 based on information associated with the RFID emitter which is associated with a particular user. In such embodiments, the user may forgo entering password information and the control system 100 may provide access to only authorized screens associated with the user. - It should also be understood that the control system 100 may be a client on a network and connected to the network through either the
USB port 92 ortest port 88. When connected to a network, event information may be communicated over the network to be stored remotely from thefreezer 10 as well as being stored redundantly on thefreezer 10. - Although the invention has been described with reference to the preferred embodiments, variations and modifications exist within the scope and spirit of the invention as described and defined in the following claims.
Claims (20)
1. A medical product storage device comprising
a storage space,
a refrigeration unit operable to cool the storage space,
a controller electrically coupled to the refrigeration unit, the controller including a processor and a memory device electrically coupled to the processor,
a user interface including a display and a user input device, the user interface electrically coupled to the controller,
a temperature sensor electrically coupled to the controller, the temperature sensor communicating a temperature signal to the controller, the temperature signal indicative of the temperature in the storage space, and
wherein the controller is operable to generate an electronic record if the medical product storage device experiences an event that meets predetermined criteria for documentation and the controller is operable to allow a user to enter information related to the event, the user entered information being added to the record.
2. The medical product storage device of claim 1 , wherein the information related to the event is unalterable after the information has been written to the record.
3. The medical product storage device of claim 1 , wherein the event that meets predetermined criteria is a temperature in the storage space that is outside of an acceptable limit.
4. The medical product storage device of claim 1 , wherein the controller is operable to generate an alarm when the event occurs.
5. The medical product storage device of claim 4 , wherein the controller is operable to provide a notification to a user spaced apart from the medical product storage device.
6. The medical product storage device of claim 5 , wherein the notification to the user is a message provided over a network connection between the controller and an external network.
7. The medical product storage device of claim 5 , wherein the notification to the user is a message transmitted to the user through a wireless signal that communicates to a communication device associated with the user.
8. The medical product storage device of claim 7 , wherein the user to whom the notification is communicated is selected from a list of potential contacts, the user selected according to predetermined criteria.
9. The medical product storage device of claim 8 , wherein the predetermined criteria includes the nature of the event about which the user is to be notified.
10. The medical product storage device of claim 9 , wherein the controller reads the temperature signal, communicates the temperature signal to the user interface, and wherein the user interface generates an image on the display that graphically displays the temperature as a function of time.
11. The medical product storage device of claim 10 , wherein the controller communicates the event to the user interface and the user interface graphically displays an icon representative of the event on the image, the location of the icon corresponding to the time of the event.
12. The medical product storage device of claim 11 , wherein the user interface is operable to allow a user to operate the user input to activate the icon representative of the event to thereby display the record associated with the specific event.
13. The medical product storage device of claim 12 , wherein the record of the event appears as an entry in a log of events and wherein activation of any part of the record in the log causes the user interface to generate an image on the display that includes additional details of the record.
14. The medical product storage device of claim 13 , wherein the additional details of the record include an action taken to resolve the event.
15. The medical product storage device of claim 1 , further comprising an electrically actuated access control device electrically coupled to the controller, the electrically actuated access control device operable to prevent access to the storage space under the control of the controller.
16. The medical product storage device of claim 15 , wherein the user interface is operable to receive a password from a user permitting access to the storage space.
17. The medical product storage device of claim 16 , wherein when a user accesses the storage space, a record is generated that includes information related to user's access to the storage space including the time and duration of the access.
18. The medical product storage device of claim 17 , wherein the controller communicates the record wirelessly to an external device associated with a particular user.
19. The medical product storage device of claim 15 , wherein the electrically actuated access control device includes a solenoid actuated lock.
20. The medical product storage device of claim 1 , wherein the memory device includes instructions that, when executed by the processor, cause the processor to
signal the user interface to display a first image on the display that indicates a graphical history of the temperature sensed by the temperature sensor,
in response to the receipt of information that predetermined criteria for documentation has been met, signal the user interface to display an icon indicative of an event that meets predetermined criteria for documentation on the image displayed,
identify a user to be notified of the event, the user being identified based on criteria related to the event,
generate a signal that is transmitted from the medical product storage device to a location that is remote from the medical product storage device to signal the event to the user,
respond to a user input activating the icon by signaling the user interface to display a second image on the display that shows a list of event that have occurred over a history,
respond to a user input activating one of the data items in the list of events by signaling the user interface to display a third image on the display that shows details regarding a specific event,
respond to the user activating a first portion of the third image by permitting the user to input a cause associated with the specific event,
respond to the user activating a second portion of the third image by permitting a user to input a corrective action associated with the specific event,
respond to the user activating a third portion of the third image by permitting a user to enter to input a code associated with the user, and
respond to the user activating a fourth portion of the third image by permitting the user to save the input information to a record.
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US13/268,148 US20130086933A1 (en) | 2011-10-07 | 2011-10-07 | Controller for a medical products storage system |
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US13/268,148 US20130086933A1 (en) | 2011-10-07 | 2011-10-07 | Controller for a medical products storage system |
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US20130086933A1 true US20130086933A1 (en) | 2013-04-11 |
Family
ID=48041180
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US13/268,148 Abandoned US20130086933A1 (en) | 2011-10-07 | 2011-10-07 | Controller for a medical products storage system |
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130198670A1 (en) * | 2012-01-20 | 2013-08-01 | Charles PELLETIER | Environment controller providing state-based control menus and environment control method |
CN104596195A (en) * | 2014-12-30 | 2015-05-06 | 上海力申科学仪器有限公司 | Drug refrigerating box with touch control screen |
JP2016040499A (en) * | 2014-08-12 | 2016-03-24 | 株式会社東芝 | Storage house |
US20160146673A1 (en) * | 2014-11-21 | 2016-05-26 | Hong Fu Jin Precision Industry (Wuhan) Co., Ltd. | Temperature indicating system |
US20160290713A1 (en) * | 2015-03-31 | 2016-10-06 | Follett Corporation | Refrigeration system and control system therefor |
US20170071784A1 (en) * | 2015-09-16 | 2017-03-16 | William I. Brobeck | High efficiency apparatus for selectively heating and/or cooling therapeutic gel packs by conduction |
US20170096325A1 (en) * | 2012-09-28 | 2017-04-06 | Franklin Fueling Systems, Inc. | Fuel delivery management system |
US10126176B2 (en) | 2016-04-21 | 2018-11-13 | Thermo Fisher Scientific (Asheville) Llc | Sensor container for mounting a temperature sensor, and associated refrigerator |
US20190272218A1 (en) * | 2018-03-01 | 2019-09-05 | Omron Corporation | Computer and control method thereof |
US10597163B2 (en) * | 2018-02-09 | 2020-03-24 | Reflect Scientific Inc. | Air freight temperature controlled device using liquid nitrogen |
US11519787B2 (en) * | 2017-01-30 | 2022-12-06 | Emball'iso | Isothermal packaging device with temperature monitoring |
WO2024005953A1 (en) * | 2022-06-29 | 2024-01-04 | Rescue Air Systems, Inc. | Method, device and system of access control and management of components of a firefighter air replenishment system having breathable air supplied thereacross |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040212505A1 (en) * | 2003-01-10 | 2004-10-28 | Honeywell International Inc. | System and method for automatically generating an alert message with supplemental information |
US20060164232A1 (en) * | 2003-04-09 | 2006-07-27 | Visible Assets, Inc. | Auditable security for cargo containers and other repositories |
US20070257773A1 (en) * | 2006-04-26 | 2007-11-08 | Compx International Inc. | Field retrofittable refrigerator lock with audit trail |
US20080184719A1 (en) * | 2006-01-18 | 2008-08-07 | Merck & Co., Inc. | Intelligent Refrigerator for Storing Pharmaceutical Product Containers |
US20090115570A1 (en) * | 2007-11-05 | 2009-05-07 | Cusack Jr Francis John | Device for electronic access control with integrated surveillance |
US20090132090A1 (en) * | 2007-11-19 | 2009-05-21 | Compx International Inc. | Field retrofittable refrigerator lock with temperature monitoring, temperature based access control and alarming |
US20090210516A1 (en) * | 2008-02-15 | 2009-08-20 | Carrier Iq, Inc. | Using mobile device to create activity record |
US20090231132A1 (en) * | 2006-03-29 | 2009-09-17 | S&S X-Ray Systems, Inc. | Remotely Actuated Refrigerator Lock with Thermal Spoilage Protection |
US7617690B2 (en) * | 2004-11-02 | 2009-11-17 | Helmer, Inc. | Blood products freezer with event log |
US7683758B2 (en) * | 1994-11-15 | 2010-03-23 | Denison William D | Electronic access control device |
US20100102982A1 (en) * | 2008-10-28 | 2010-04-29 | Open Systems International, Inc. | Holistic alarm monitoring |
US20100153833A1 (en) * | 2008-12-15 | 2010-06-17 | Marc Siegel | System and method for generating quotations from a reference document on a touch sensitive display device |
US20110001605A1 (en) * | 2009-03-04 | 2011-01-06 | Masimo Corporation | Medical monitoring system |
US8537018B2 (en) * | 2010-06-09 | 2013-09-17 | Thermo Fisher Scientific (Asheville) Llc | Refrigeration system management and information display |
-
2011
- 2011-10-07 US US13/268,148 patent/US20130086933A1/en not_active Abandoned
Patent Citations (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7741952B2 (en) * | 1994-11-15 | 2010-06-22 | Micro Enhanced Technology, Inc. | Electronic access control device |
US7683758B2 (en) * | 1994-11-15 | 2010-03-23 | Denison William D | Electronic access control device |
US20040212505A1 (en) * | 2003-01-10 | 2004-10-28 | Honeywell International Inc. | System and method for automatically generating an alert message with supplemental information |
US20060164232A1 (en) * | 2003-04-09 | 2006-07-27 | Visible Assets, Inc. | Auditable security for cargo containers and other repositories |
US7617690B2 (en) * | 2004-11-02 | 2009-11-17 | Helmer, Inc. | Blood products freezer with event log |
US20080184719A1 (en) * | 2006-01-18 | 2008-08-07 | Merck & Co., Inc. | Intelligent Refrigerator for Storing Pharmaceutical Product Containers |
US20100275625A1 (en) * | 2006-01-18 | 2010-11-04 | Merck & Co, Inc. | Intelligent refrigerator for storing pharmaceutical product containers |
US8063735B2 (en) * | 2006-03-29 | 2011-11-22 | SIS X-Ray Products, Inc. | Remotely actuated refrigerator lock with thermal spoilage protection |
US20090231132A1 (en) * | 2006-03-29 | 2009-09-17 | S&S X-Ray Systems, Inc. | Remotely Actuated Refrigerator Lock with Thermal Spoilage Protection |
US20070257773A1 (en) * | 2006-04-26 | 2007-11-08 | Compx International Inc. | Field retrofittable refrigerator lock with audit trail |
US20090115570A1 (en) * | 2007-11-05 | 2009-05-07 | Cusack Jr Francis John | Device for electronic access control with integrated surveillance |
US20090132090A1 (en) * | 2007-11-19 | 2009-05-21 | Compx International Inc. | Field retrofittable refrigerator lock with temperature monitoring, temperature based access control and alarming |
US8199019B2 (en) * | 2007-11-19 | 2012-06-12 | Compx International Inc. | Field retrofittable refrigerator lock with temperature monitoring, temperature based access control and alarming |
US20090210516A1 (en) * | 2008-02-15 | 2009-08-20 | Carrier Iq, Inc. | Using mobile device to create activity record |
US20100102982A1 (en) * | 2008-10-28 | 2010-04-29 | Open Systems International, Inc. | Holistic alarm monitoring |
US20100153833A1 (en) * | 2008-12-15 | 2010-06-17 | Marc Siegel | System and method for generating quotations from a reference document on a touch sensitive display device |
US20110001605A1 (en) * | 2009-03-04 | 2011-01-06 | Masimo Corporation | Medical monitoring system |
US8537018B2 (en) * | 2010-06-09 | 2013-09-17 | Thermo Fisher Scientific (Asheville) Llc | Refrigeration system management and information display |
US20130339894A1 (en) * | 2010-06-09 | 2013-12-19 | Thermo Fisher Scientific (Asheville) Llc | Refrigeration system management and information display |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130198670A1 (en) * | 2012-01-20 | 2013-08-01 | Charles PELLETIER | Environment controller providing state-based control menus and environment control method |
US20170096325A1 (en) * | 2012-09-28 | 2017-04-06 | Franklin Fueling Systems, Inc. | Fuel delivery management system |
US10336602B2 (en) * | 2012-09-28 | 2019-07-02 | Franklin Fueling Systems, Llc | Fuel delivery management system |
JP2016040499A (en) * | 2014-08-12 | 2016-03-24 | 株式会社東芝 | Storage house |
US20160146673A1 (en) * | 2014-11-21 | 2016-05-26 | Hong Fu Jin Precision Industry (Wuhan) Co., Ltd. | Temperature indicating system |
CN105675154A (en) * | 2014-11-21 | 2016-06-15 | 鸿富锦精密工业(武汉)有限公司 | Temperature indication system |
CN104596195A (en) * | 2014-12-30 | 2015-05-06 | 上海力申科学仪器有限公司 | Drug refrigerating box with touch control screen |
US10501972B2 (en) * | 2015-03-31 | 2019-12-10 | Follett Corporation | Refrigeration system and control system therefor |
US20160290713A1 (en) * | 2015-03-31 | 2016-10-06 | Follett Corporation | Refrigeration system and control system therefor |
US20170071784A1 (en) * | 2015-09-16 | 2017-03-16 | William I. Brobeck | High efficiency apparatus for selectively heating and/or cooling therapeutic gel packs by conduction |
US10126176B2 (en) | 2016-04-21 | 2018-11-13 | Thermo Fisher Scientific (Asheville) Llc | Sensor container for mounting a temperature sensor, and associated refrigerator |
US11519787B2 (en) * | 2017-01-30 | 2022-12-06 | Emball'iso | Isothermal packaging device with temperature monitoring |
US10597163B2 (en) * | 2018-02-09 | 2020-03-24 | Reflect Scientific Inc. | Air freight temperature controlled device using liquid nitrogen |
US10913540B2 (en) * | 2018-02-09 | 2021-02-09 | Reflect Scientific Inc. | Air freight system |
US20190272218A1 (en) * | 2018-03-01 | 2019-09-05 | Omron Corporation | Computer and control method thereof |
US11023335B2 (en) * | 2018-03-01 | 2021-06-01 | Omron Corporation | Computer and control method thereof for diagnosing abnormality |
WO2024005953A1 (en) * | 2022-06-29 | 2024-01-04 | Rescue Air Systems, Inc. | Method, device and system of access control and management of components of a firefighter air replenishment system having breathable air supplied thereacross |
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