US20100198122A1 - Methods and apparatus for decubitus ulcer prevention and treatment - Google Patents
Methods and apparatus for decubitus ulcer prevention and treatment Download PDFInfo
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- US20100198122A1 US20100198122A1 US12/758,956 US75895610A US2010198122A1 US 20100198122 A1 US20100198122 A1 US 20100198122A1 US 75895610 A US75895610 A US 75895610A US 2010198122 A1 US2010198122 A1 US 2010198122A1
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- fluid channels
- channels
- pressure
- deflatable
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/14—Bandages or dressings; Absorbent pads specially adapted for the breast or abdomen
- A61F13/143—Thorax bandages or bandaging garments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/06—Bandages or dressings; Absorbent pads specially adapted for feet or legs; Corn-pads; Corn-rings
- A61F13/064—Bandages or dressings; Absorbent pads specially adapted for feet or legs; Corn-pads; Corn-rings for feet
- A61F13/069—Decubitus ulcer bandages
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/06—Bandages or dressings; Absorbent pads specially adapted for feet or legs; Corn-pads; Corn-rings
- A61F13/08—Elastic stockings; for contracting aneurisms
- A61F13/085—Openable readjustable
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S2/00—Apparel
- Y10S2/03—Inflatable garment
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Invalid Beds And Related Equipment (AREA)
Abstract
An apparatus for treating or preventing decubitus ulcers includes: a garment sized and shaped to be worn by a patient; a first plurality of fluid channels and a second plurality of fluid channels coupled to the garment and disposed adjacent to one another, at least some of the first plurality of fluid channels being independently inflatable and deflatable as compared with at least some of the second plurality of fluid channels; and a fluid control mechanism coupled to the first and second plurality of fluid channels and operating to repeatably and sequentially inflate and deflate the independently inflatable and deflatable fluid channels from among the first and second plurality of fluid channels such that there is less than a predetermined level of pressure exerted on the patient's tissue under one or more of the deflated channels.
Description
- This application is a continuation of U.S. patent application Ser. No. 10/952,349, pending and allowed, filed Sep. 27, 2004, the entire disclosure of which is hereby incorporated by reference.
- The present invention relates to a therapeutic pressure-relieving device and method for preventing and treating decubitus ulcers on a portion of a patient's body.
- Decubitus ulcers (commonly referred to as “bedsores”) may form on parts or portions of a patient's body when in contact for a prolonged period of time with an object such as, for example, a bed, a wheelchair, or other type of furniture. The pressure exerted on the skin covering or surrounding the bony prominences on the portions of the patient's body that are in contact with a surface on the furniture may result in the skin becoming inflamed, and may obstruct or restrict the blood flow to the skin and/or the underlying tissue, causing the skin and underlying tissue to become ischemic, eventually resulting in the formation of decubitus ulcers. Decubitus ulcers can form in any area of tissue covering a bony prominence that is in contact with the surface of the bed or sofa or other furniture upon which the patient is resting, e.g., parts of the spine, heels, elbows, and shoulders, shoulder blades, as well as the sacral, trochanteric and ischial areas in the coccyx, hips and buttocks.
- Specifically, although arterial inflow can continue and withstand pressure upwards of 170-mm Hg or greater, venous return or blood flow from a region is restricted or obstructed with pressures as low as 32-mm Hg on the skin and underlying tissue. The restriction or obstruction of the venous return of blood from the skin and underlying tissue may lead to the buildup of toxins and waste products that may lead to the formation of decubitus ulcers. Initially, pressure on the skin and tissue may lead to pink coloration and/or mild inflammation, which may disappear within a few hours of relieving pressure on the area. If pressure is not relieved, superficial lesions may form on the skin, then turning into ulcers which continue growing deeper until extending through the bone to internal organs, eventually becoming fatal to the patient.
- A traditional means for preventing the formation of decubitus ulcers is to physically turn the patient from side to side at short intervals of time, thus alleviating the amount of time a specific body part is subjected to straining pressures. However, this method of prevention often proves ineffective since the turning of the patient only relieves pressure from certain regions of the body. Moreover, a patient will many times return to a default position even after having been rotated. In addition, since nurses or other aids must be present to physically rotate the patient, this method is laborious, time-consuming and costly.
- An alternative method for preventing the formation of decubitus ulcers is the use of air mattresses. Since air mattresses reduce the solidity of the contact surface, the mattresses relieve some of the pressure on the patient's body. However, these devices can be costly and not readily available to all patients. Furthermore, the mattresses are not easily portable in case the patient is moved to another unit or bed.
- This invention relates to a therapeutic device and method for treating and preventing decubitus ulcers on parts or portions of a patient's body by alleviating pressure on the tissue covering and immediately surrounding the bony prominences in the body portion and by alleviating pressure on the blood vessels in the angiosomes in the body portion to allow blood flow to continue throughout the body portion, including venous return, as well as arterial inflow. The device may be configured to act upon a particular body portion. The device may include inflatable channels or pockets positioned within the device based on the distribution of one or more angiosomes in the body portion, and pressure relievers to protect the tissue covering and immediately surrounding the bony prominences in the body portion. The channels may be sequentially or periodically inflated and deflated to alleviate pressure on the body portion while allowing blood flow throughout the angiosomes.
- In an example embodiment, the device may include a portable, washable, removable, durable garment that provides pressure relief from sacral, trochanteric and ischial pressure sores or decubitus ulcers. The device may use sequential air channel technology to relieve pressure and allow blood flow to and from the sacral, trochanteric and ischial regions of the coccyx, hips and buttocks based on the angiosome distribution or location of angiosomes in the coccyx, hips and buttocks.
- The garment may include rib-shaped or rib-patterned inflatable cushions, pockets or channels radially oriented around a position of an angiosome in each area. The channels are sequentially inflated and deflated to vary and relieve pressure around a center of the angiosome and maximize blood flow around the angiosomes. Air, water or other fluids may be pumped into the channels and removed from the channels with a bedside pump or motor attached to ports that are connected to the channels in the garment. The garment may be made with plastic or another material that may be washable and collapsible for storage purposes. The garment may also be made with a breathable fabric. For example, an inner liner made out of cotton can be provided to line the interior of the garment. The inner liner may be washable and replaceable or disposable. The garment may also have one or more ports to releasably connect the pump or motor to the garment.
- The pump or motor can inflate and/or deflate the channels in the garment through the ports on the garment. For example, the garment may have two ports, with each half of the channels in the garment being inflated and deflated by the pump through each of the ports. Specifically, one set of channels may be deflated through one port, while the channels in between the deflated channels are being inflated through the other port.
- In an example embodiment, an apparatus includes a portable garment configured to be placed on a portion of a body to provide a varying pressure on the body portion. The provided pressure varying within a range sufficient for at least one of treating and preventing a decubitus ulcer in the body portion.
- In an example embodiment, an apparatus includes a mechanism configured to alleviate pressure on a portion of a body. The mechanism provides a varying pressure on the body portion. The mechanism may include channels or pockets that are inflatable with a fluid (e.g., air or water), or with a gel-like substance (e.g., silicon or another pliable material or substance). The pressure provided by the sequential or periodic inflation and deflation of the channels or pockets may vary continuously, e.g., by fluctuating through a range of pressures, or it may vary periodically, providing different levels of pressure at different time periods. The mechanism is positioned based on, inter alia, the location or distribution of one or more angiosomes in the body portion.
- In an example embodiment, an apparatus comprises a device including a plurality of inflatable channels configured to be periodically or sequentially inflated and deflated to provide a varying pressure on a portion of a body of a patient that varies within a range sufficient for at least one of treating and preventing a decubitus ulcer.
- In an example embodiment, a garment for treating and preventing decubitus ulcers around one or more of the coccygeal, hip and buttocks areas of a patient's body includes one or more cushions in the garment, and one or more adjustable bands removably attaching the garment to the body. The cushions are positioned radially away from one or more of the sacrum, ischial and trochanter areas. The cushions are positioned in the garment as a function of the location or distribution of the angiosomes in one or more of the sacrum, ischial and trochanter areas.
- In an example embodiment, an apparatus for treating and preventing decubitus ulcers around at least one of a coccygeal, buttocks and hip areas of a body includes a garment and a pump releasably connectable to the garment. The garment includes a plurality of inflatable channels and a plurality of pressure relievers. The channels are configured to be alternately inflated and deflated in order to provide a variety of pressures on a body portion in or around the coccygeal, buttocks and hip areas of the body. The channels and the pressure relievers are positioned in the garment based on the locations of angiosomes or angiosome distribution in one or more of the sacrum, ischial and trochanter regions in the coccygeal, buttocks and hip areas. The pump is configured to pump and remove air from the inflatable channels in the garment.
- In an example embodiment, a method for treating and preventing decubitus ulcers on a portion of a body includes the step of sequentially or periodically inflating and deflating channels in a garment worn on the body portion. The maximum pressure provided by the channels in the garment on the body portion is sufficient to treat and/or prevent decubitus ulcers treating or preventing a decubitus ulcer on the body portion.
- In an example embodiment, a method for treating and preventing decubitus ulcers on a portion of the body includes the step of sequentially or periodically inflating and deflating air channels in a garment worn on the body portion. The channels are positioned in the garment as a function of the location of angiosomes in the body portion.
- In accordance with one or more further embodiments, methods and apparatus provide for: a garment sized and shaped to be worn by a patient; a first plurality of fluid channels and a second plurality of fluid channels coupled to the garment and disposed adjacent to one another, at least some of the first plurality of fluid channels being independently inflatable and deflatable as compared with at least some of the second plurality of fluid channels; and a fluid control mechanism coupled to the first and second plurality of fluid channels and operating to repeatably and sequentially inflate and deflate the independently inflatable and deflatable fluid channels from among the first and second plurality of fluid channels such that there is less than a predetermined level of pressure exerted on the patient's tissue under one or more of the deflated channels.
- The predetermined level of pressure may be about 32 mm Hg.
- The fluid control mechanism may operate to sequentially: inflate the independently inflatable and deflatable fluid channels from among the first plurality of fluid channels while deflating the independently inflatable and deflatable fluid channels from among the second plurality of fluid channels; and deflate the independently inflatable and deflatable fluid channels from among the first plurality of fluid channels while inflating the independently inflatable and deflatable fluid channels from among the second plurality of fluid channels.
- According to one or more aspects, such inflation/deflation is carried out such that there is less than about 32 mm Hg pressure exerted on the patient's tissue under one or more of the deflated channels. According to one or more additional or alternative aspects, such inflation/deflation is carried out to provide a rocking motion for moving the patient from one position to another.
- At least one of the independently inflatable and deflatable fluid channels from among the first plurality of fluid channels may extend in a longitudinal direction; and at least two of the independently inflatable and deflatable fluid channels from among the second plurality of fluid channels extend along either side of the at least one of the independently inflatable and deflatable fluid channels from among the first plurality of fluid channels. In such case, the fluid control mechanism may operate to sequentially and repeatably: inflate and deflate the at least one of the independently inflatable and deflatable fluid channels from among the first plurality of fluid channels; and inflate and deflate the at least two of the independently inflatable and deflatable fluid channels from among the second plurality of fluid channels, such that there is less than about 32 mm Hg pressure exerted on the patient's tissue under the at least one of the independently inflatable and deflatable fluid channels from among the first plurality of fluid channels, while in a deflated state.
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FIG. 1 illustrates a bone structure of a lower portion of a human body. -
FIG. 2 illustrates angiosome distribution and location, and locations of blood vessels and tissues surrounding bony prominences in the lower portion of a standing human body. -
FIG. 3 illustrates angiosome distribution and location, and locations of blood vessels and tissues surround bony prominences in the lower portion of a seated human body. -
FIG. 4 illustrates a perspective frontal view of an embodiment of a device for preventing and treating decubitus ulcers according to the present invention. -
FIG. 5 illustrates a perspective rear view of the embodiment of the device for preventing and treating decubitus ulcers ofFIG. 4 . -
FIG. 6 illustrates a perspective rear view of a person in a standing position wearing the embodiment of the device for preventing and treating decubitus ulcers ofFIG. 4 . -
FIG. 7 illustrates a perspective frontal view of a person in a seated position wearing the embodiment of the device for preventing and treating decubitus ulcers ofFIG. 4 . -
FIG. 8 illustrates a partial view of a portion of an embodiment of a device for preventing and treating decubitus ulcers and a partial view of the underlying blood vessels and angiosomes, according to the present invention. -
FIG. 9 illustrates a partial view of a portion of an embodiment of a device for preventing and treating decubitus ulcers and a partial view of the underlying blood vessels and angiosomes, according to the present invention. -
FIG. 10 illustrates a frontal perspective view of an embodiment of a device for preventing and treating decubitus ulcers according to the present invention. -
FIG. 11 illustrates a rear perspective view of an embodiment of a device for preventing and treating decubitus ulcers according to the present invention. - The present invention relates to a device and method for preventing and treating decubitus ulcers.
FIGS. 1 through 3 illustrate the underlying anatomy and conditions that lead to the formation of decubitus ulcers.FIGS. 4 through 7 illustrate various aspects of the device and method according to the present invention. - As described above, a patient who is confined to a bed, a wheelchair or other types of furniture, and cannot move or be moved for prolonged periods of time, may be prone to decubitus ulcers (also referred to as bed sores or pressure sores) in the parts of their bodies having bony prominences that are subject to constant pressure when the parts of their bodies are resting or being constrained against a surface of the furniture.
FIGS. 1 through 3 illustrates a basic bone structure, highlighting the bony prominences in themiddle portion 5 of a person'sbody 1 over which pressure sores may form intissue tissue 3 covering theischium 4 in thebuttocks 2. Trochanteric decubitus ulcers or pressure sores may form in the tissue 7 covering the trochanters 6 (the broad flat bony prominence at the top of the femur 9) in thehips 8. Sacral decubitus ulcers or pressure sores may form in thetissue 11 covering the sacrum or sacral 12 in the area of thecoccyx 10. -
Decubitus ulcers device 20 that alleviates pressure on thetissue bony prominences portion 5 of thebody 1, while allowing blood to flow through theangiosomes 18 andblood vessels 5 in theportion 5 of thebody 1, while the patient is resting or is confined or constrained in a particular position in or on a piece offurniture 13. - There are angiosomes 18 distributed throughout the
middle portion 5 of thebody 1, and through other parts or portions of thehuman body 1. Anangiosome 18 is a three dimensional block of tissue supplied by a single source artery. The distribution ofangiosomes 18 refers to a mapping ofblood vessels 19 in a block of tissue, or the tree-line pattern or arborization of blood vessels in a certain area, e.g., in thebody portion 5, or for thetissue ischium 4,trochanteric 6, and sacral orsacrum 12. If external pressure cuts off the blood flow through one or more blood vessels 19 (e.g., venous return), then there may be a lack of nutrients and/or build up of toxins or waste product in the 3 dimensional block of tissue being serviced by thoseblood vessels 19 in aparticular angiosome 18, which may lead to the formation of decubitus ulcers in the tissue. Thus, if any device that purports to relieve pressure on a part orportion 5 of thebody 1 cuts off blood flow in anangiosome 18, the device may still affect the viability of the tissue being supplied by theblood vessels 19 in theangiosome 18. - Thus, a
device 20 that alleviates pressure on areas oftissue angiosomes 18 andblood vessels 19 in a portion of abody 1, will be able to alleviate pressure, while allowing for blood flow to continue in theportion 5 of thebody 1. Since the mapping ofblood vessels 19 or distribution ofangiosomes 18 tends to be similar from person to person, it is possible to standardize a design of adevice 20 based on the location or distribution ofangiosomes 18 andblood vessels 19 in aportion 5 of thebody 1, and use thedevice 20 on more than one person. - The
device 20 illustrated inFIGS. 4 through 9 is configured to alleviate pressure on amiddle portion 5 of thebody 1 including thebuttocks 2,hips 8 andcoccyx 10. Thedevice 20 includes agarment 25 and apump 50 releasably attached or coupled or connected thereto to pump air, water or other fluids or gel-like substances and/or remove such fluids or substances from thegarment 25 when thepump 50 is activated or actuated. Thegarment 25 is portable and configured to fit around thewaist 15, and may be worn as a pair ofshorts 26 on thebody 1, alleviating pressure on and around the trochantericbony prominences 6 in thehips 8, the ischialbony prominences 4 in thebuttocks 2, and the sacralbony prominences 12 in thecoccyx 10, and allowing blood flow based on the distribution ofangiosomes 18 and theblood vessels 19 in theangiosomes 18 in thebody portion 5. - The
garment 25 provides pressure varying in a range sufficient for treating and/or preventing decubitus ulcers in thebody portion 5. Unlike products that provide higher pressures that periodically cut off blood flow to simulate the pumping action of arterial inflow to prevent and/or treat deep vein thrombosis, the maximum pressure provided by thedevice 20 on thebody portion 5 is set below the pressure for preventing and/or treating deep vein thrombosis. - The
garment 25 includes sequential air technology to provide varying pressure on thebody portion 5, based on the location or distribution ofangiosomes 18 in thebody portion 5 to allow for maximal blood flow throughout theangiosomes 18 in thebody portion 5, including through theblood vessels 19 therein. The sequential air technology includes sequentially or periodically inflating and deflatingchannels 30 ingarment 25. Thechannels 30 may be integrated or intertwined in amiddle layer 22 or anouter layer 21 in thegarment 25, andchannels 30 may also refer to or include pockets or cushions. - The
channels 30 are inflatable with a fluid, e.g., air or water, or with a gel-like substance, e.g., a silicon-based gel. Thechannels 30 are positioned in thegarment 25 based on the location or distribution ofangiosomes 18 in thebody portion 5, and theblood vessels 19 in thebody portion 5. Thechannels 30 are configured to be sequentially or periodically inflated and deflated. Thechannels 30 may provide a fluctuating pressure by continuously inflating or deflating, or the channels may provide an otherwise varying pressure by remaining inflated and then deflated for certain periods of time, e.g., 5 minutes in each phase. The pressure applied by theinflated channels 30 on thebody portion 5 and/or the pressure on the parts of thebody portion 5 under the deflatedchannels 30 may be configured or set not to exceed the pressure that stops blood flow in the blood vessels, e.g., 32 mm Hg. The time periods and patterns of inflation and/or deflation ofchannels 30 may be configured to minimize the obstruction or reduction of blood flow in theblood vessels 19, and blood supply in theangiosomes 18 in thebody portion 5. - Some of the
channels 38 may be rib-shaped, parallel to one another, and arranged in a rib-like pattern, as illustrated inFIG. 5 . Additionally, at least some of thechannels 30 may be configured to be offset from the locations ofangiosomes 18 orblood vessels 19 when thegarment 25 is on thebody portion 5. If thechannels 30 were positioned in thegarment 25 to crossblood vessels 19, then inflation of thechannels 30 may obstruct or restrict blood flow through theblood vessels 19. In order to allow or promote maximal blood flow through theblood vessels 19 andangiosomes 18, some of thechannels 30 may be positioned or configured to run adjacent to or parallel toblood vessels 19 in theangiosomes 18, as illustrated inFIGS. 8 and 9 . The parallel placement ofchannels 30 helps to minimize any interruption or disturbance to the blood flow in thebody portion 5, when thechannels 30 are being inflated and/or deflated. - Some or all of the
channels 30 may be spaced apart from one another, as illustrated inFIG. 9 . Some or all of thechannels 30 may be interwoven or intertwined, as illustrated inFIG. 8 . Even if the channels are interwoven or intertwined, as illustrated inFIG. 8 , there is no or little pressure (e.g., less than 32 mm Hg) on theblood vessels 19 under the deflated channels 36, in part due to the support provided by inflated channels 37, to allow blood flow, including venous return as well as arterial inflow to continue through theblood vessel 19. - The
garment 25 may also includepressure relievers furniture 13.Pressure relievers tissue furniture 13. Alternatively,pressure relievers channels 30, so that the tissue thereunder does not come into contact or encounters minimal pressure from thegarment 25 and from any surface on thefurniture 13. Thepressure relievers -
Pressure reliever 44 is positioned ingarment 25 to protect at least part or all of thetissue 3 in the area of the ischiumbony prominence 4 in thebuttocks 2.Pressure reliever 46 is positioned ingarment 25 to protect at least part or all of the tissue 7 in the area of the trochantericbony prominence 6 in thehips 8.Pressure reliever 42 is positioned ingarment 25 to protect at least part of or all of thetissue 11 in the area of the sacralbony prominence 12 in thecoccyx 10. Thegarment 25 may include asacral ring 48 to surround or encirclepressure reliever 42. Thesacral ring 48 may provide extra support for thegarment 25. For example, if thesacral ring 48 is integrated with theouter layer 21, thesacral ring 48 may maintain the integrity of thegarment 10 around thesacrum 12. Thesacral ring 48 may be made of a rigid material or a more flexible material, such as, e.g., plastic. Alternatively, thegarment 25 may have nosacral pressure reliever 42, but the tissue in thesacral area 11 may be protected from excess pressure by thesacral ring 48 alone, for example, if it is of sufficient thickness to protecttissue 11 from direct contact with a surface offurniture 13. - Some of the
channels 30 in thegarment 25 may include one ormore channels 35 configured around thepressure relievers channels 35 may be configured or positioned to be offset from the center of the tissue on and surrounding a bony prominence, e.g., centers 45, 47 and 43 of the areas oftissue bony prominences buttocks 2,hips 8 andcoccyx 10, respectively, also referred to as the ischial, trochanteric and sacral areas of thebody portion 5. Thechannels 35 may be referred to as additional channels, and may be positioned to extend radially from thecenters garment 25 is on thebody portion 5. Thechannels 35 arranged radially around thepressure relievers tissue centers channels 30 may be positioned in rib-like patterns outside of thepressure relievers additional channels 35 positioned around thepressure relievers - The
device 20 also includes apump 50 releasably connectable to thegarment 25 via one or more valves or ports ongarment 25. Thepump 50 may be small and lightweight, to be portable, and may be configured to be releasably attachable to one or more pieces of furniture (including achair 13, or for example, the intravenous pole), or directly to the person using thegarment 25, e.g., as on a belt around thewaist 15. - As illustrated in
FIGS. 4 through 6 , pump 50 is releasably connectable toports garment 25. Thepump 50 is configured to periodically or sequentially inflate and deflate one or more of thechannels 30 in thegarment 25 through valves orports garment 25, e.g., by pumping and/or removing air, water or other fluids or gel-like substances into and/or out of thechannels 30 throughports pump 50 may be configured to be able to regulate the amount of fluids or substance being pumped or removed fromchannels 30. Thepump 50 may also be configured to time the periods for each of the inflation and deflation cycles. Thepump 50 may be configured to inflate and deflate all of the channels at the same time. Alternatively, thepump 50 may be configured to inflate one subset ofchannels 30 throughport 27 while deflating another subset ofchannels 30 throughport 28. As illustrated inFIGS. 8 and 9 with arrows indicating directions of fluid movement, one subset of channels 37 may be inflated throughport 27 while another subset of channels 36, alternating between channels 37, are being deflated throughport 28. - Alternatively, the first subset of
channels 30 may be configured to be one side of thegarment 25, and the second subset ofchannels 30 may be configured to be on another side of thegarment 25. The sequential or periodic inflation and/or deflation of the first and second subsets ofchannels 30 under this configuration provides a rocking motion, and may be implemented to periodically move the patient from one position to another. Thepump 50 may be supplied with additional ports (not shown), so that thepump 50 may be configured to act on one set ofchannels 30 at a time, for example, leaving a third subset of channels entirely deflated if it is on a portion of the body not in contact with a piece offurniture 13. In any case, alternately inflating and deflating different portions ofgarment 25 or different subsets ofchannels 30 according to different patterns will prevent pressure from inflated channels remaining on any specific location of thebody portion 5 for an extended amount of time. - The
garment 25 itself may be made with a durable washable material, e.g., plastic. Thegarment 25 may be configured with layers, as illustrated inFIG. 4 . Thechannels 30 may be integrated into amiddle layer 22 ofgarment 25.Outer layer 21 may provide a protective plastic covering over thechannels 30 and the remainder of thegarment 25. Theouter layer 21 may have holes or pores 29 to allow air to pass through to and from themiddle layer 22, theinner layer 23 and thebody portion 5.Outer layer 21 may be detachable from the rest of thegarment 25, to be washed or rinsed off, or replaced. - The
inner layer 23 may include a liner or lining 24 that is made with a breathable or softer or hypoallergenic fabric or other material, e.g., cotton, nylon, polyester, rayon, or lycra, or a combination or blend of any two or more of the foregoing materials. The lining 24 may be releasably attachable to theinner layer 23 of thegarment 25. The lining 24 may cover all or part of theinner layer 23 of thegarment 25. The lining may be removable to be washable or disposable, and in any case, replaceable. - The
garment 25 may be releasably attachable to thebody portion 5 via one ormore straps 60 on afront side 70 of thegarment 25, as illustrated inFIG. 4 . Thestraps 60 may beelastic bands 61 or otherwise adjustable, asadjustable band 62. Thestraps 60 may be made with a material including cotton, to increase the comfortability of thedevice 20. Thestraps 60 may make it easier for thegarment 25 to be placed on or removed from thebody portion 5. - The
straps 60 may be spaced apart from one another in order to permit the frontal area of thebody portion 5 to remain exposed for further examination and follow up by a doctor, nurse or other care giver. The straps also provide a way of attaching thegarment 25 to thebody portion 5, without unnecessarily covering the frontal area of thebody portion 5. Thestraps 60 may allow the person wearing thegarment 25 to be more comfortable and cooler, then if the frontal area of thebody portion 5 were fully covered as well. - The
straps 60 may be permanently attached at adistal end 64 to afirst side 72 of thegarment 25, and releasably attached at aproximal end 65 to anopposite side 73 of thefront side 70 of thegarment 25. Thestraps 60 may be releasably attachable withvelcro 63 onsides 73, or with buttons, snaps, zippers and other modes of releasably attaching or fastening thestraps 60 to thesides 73 of thegarment 25. - The
device 20 illustrated inFIGS. 4 through 9 is configured forbody portion 5, including thebuttocks 2,hips 8, andcoccyx 10. As illustrated inFIG. 10 , thedevice 20 may extend further down the legs and further along the arms, withchannels 30 andpressure relievers FIG. 11 ,device 20 may include agarment 80 configured to fit on an upper body portion, with shoulderblade pressure relievers 84, and withelbow pressure relievers 82. Thedevice 20 may be configured with pressure relievers in a variety of locations, and a variety of patterns for the distribution ofchannels 30, depending on the position of thebody 1, the type offurniture 13, and other conditions. - In the preceding specification, the present invention has been described with reference to specific exemplary embodiments thereof. It will, however, be evident that various modifications and changes may be made thereunto without departing from the broader spirit and scope of the present invention as set forth in the claims that follow. The specification and drawings are accordingly to be regarded in an illustrative rather than restrictive sense.
Claims (14)
1. An apparatus comprising:
a garment sized and shaped to be worn by a patient;
a first plurality of fluid channels and a second plurality of fluid channels coupled to the garment and disposed adjacent to one another, at least some of the first plurality of fluid channels being independently inflatable and deflatable as compared with at least some of the second plurality of fluid channels; and
a fluid control mechanism coupled to the first and second plurality of fluid channels and operating to repeatably and sequentially inflate and deflate the independently inflatable and deflatable fluid channels from among the first and second plurality of fluid channels such that there is less than a predetermined level of pressure exerted on the patient's tissue under one or more of the deflated channels.
2. The apparatus of claim 1 , wherein the predetermined level of pressure is about 32 mm Hg.
3. The apparatus according to claim 1 , wherein the fluid control mechanism operates to sequentially:
inflate the independently inflatable and deflatable fluid channels from among the first plurality of fluid channels while deflating the independently inflatable and deflatable fluid channels from among the second plurality of fluid channels; and
deflate the independently inflatable and deflatable fluid channels from among the first plurality of fluid channels while inflating the independently inflatable and deflatable fluid channels from among the second plurality of fluid channels,
such that there is less than about 32 mm Hg pressure exerted on the patient's tissue under one or more of the deflated channels.
4. The apparatus according to claim 3 , wherein:
at least one of the independently inflatable and deflatable fluid channels from among the first plurality of fluid channels extends in a longitudinal direction; and
at least two of the independently inflatable and deflatable fluid channels from among the second plurality of fluid channels extend along either side of the at least one of the independently inflatable and deflatable fluid channels from among the first plurality of fluid channels.
5. The apparatus according to claim 4 , wherein the fluid control mechanism operates to sequentially and repeatably:
inflate and deflate the at least one of the independently inflatable and deflatable fluid channels from among the first plurality of fluid channels; and
inflate and deflate the at least two of the independently inflatable and deflatable fluid channels from among the second plurality of fluid channels,
such that there is less than about 32 mm Hg pressure exerted on the patient's tissue under the at least one of the independently inflatable and deflatable fluid channels from among the first plurality of fluid channels, while in a deflated state.
6. The apparatus according to claim 1 , wherein the fluid control mechanism comprises a pump releaseably connectable to the channels of the garment.
7. An apparatus comprising:
a body contact element sized and shaped to engage a patient;
a first plurality of fluid channels and a second plurality of fluid channels coupled to the body contact element and disposed adjacent to one another, at least some of the first plurality of fluid channels being independently inflatable and deflatable as compared with at least some of the second plurality of fluid channels; and
a fluid control mechanism coupled to the first and second plurality of fluid channels and operating to repeatably and sequentially inflate and deflate the independently inflatable and deflatable fluid channels from among the first and second plurality of fluid channels to provide a rocking motion for moving the patient from one position to another.
8. The apparatus of claim 7 , wherein the fluid control mechanism operates to inflate and deflate the independently inflatable and deflatable fluid channels from among the first and second plurality of fluid channels such that there is less than a predetermined level of pressure exerted on the patient's tissue under one or more of the deflated channels.
9. The apparatus of claim 8 , wherein the predetermined level of pressure is about 32 mm Hg.
10. An apparatus comprising:
a mechanism configured to alleviate pressure on a portion of a body by providing a varying pressure on the portion, a position of the mechanism being based upon at least one of a location of an angiosome and angiosome distribution in the portion,
wherein the mechanism includes at least one pressure reliever and a plurality of channels positioned around the at least one pressure reliever for protecting an area on the portion from excess pressure, each channel:
(i) configured to be offset from a center of the pressure reliever,
(ii) configured to extend radially away from the center of the pressure reliever, and
(iii) operable to be inflated and/or deflated such that the pressure reliever provides the varying pressure on the portion.
11. The apparatus according to claim 10 , wherein the mechanism includes a pump connected to the at least one channel, the pump being configured to sequentially inflate and deflate the at least one inflatable channel such that the provided pressure in the at least one deflated channel on the portion is less than or equal to about 32 mm Hg.
12. The apparatus according to claim 10 , wherein the inflatable channel is configured to be offset from the location of the angiosome.
13. A method, comprising:
providing a garment sized and shaped to be worn by a patient;
providing a first plurality of fluid channels and a second plurality of fluid channels coupled to the garment and disposed adjacent to one another, at least some of the first plurality of fluid channels being independently inflatable and deflatable as compared with at least some of the second plurality of fluid channels; and
repeatably and sequentially inflating and deflating the independently inflatable and deflatable fluid channels from among the first and second plurality of fluid channels such that there is less than a predetermined level of pressure exerted on the patient's tissue under one or more of the deflated channels.
14. The method of claim 1 , wherein the predetermined level of pressure is about 32 mm Hg.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US12/758,956 US20100198122A1 (en) | 2004-09-27 | 2010-04-13 | Methods and apparatus for decubitus ulcer prevention and treatment |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US10/952,349 US7823219B2 (en) | 2004-09-27 | 2004-09-27 | Decubitus ulcer prevention and treatment |
US12/758,956 US20100198122A1 (en) | 2004-09-27 | 2010-04-13 | Methods and apparatus for decubitus ulcer prevention and treatment |
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US10/952,349 Continuation US7823219B2 (en) | 2004-09-27 | 2004-09-27 | Decubitus ulcer prevention and treatment |
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US12/758,956 Abandoned US20100198122A1 (en) | 2004-09-27 | 2010-04-13 | Methods and apparatus for decubitus ulcer prevention and treatment |
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Application Number | Title | Priority Date | Filing Date |
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US10/952,349 Expired - Fee Related US7823219B2 (en) | 2004-09-27 | 2004-09-27 | Decubitus ulcer prevention and treatment |
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US11388943B2 (en) | 2009-06-12 | 2022-07-19 | Under Armour, Inc. | Garment with compression adjustment arrangement |
US9622907B2 (en) | 2010-09-10 | 2017-04-18 | Medivance Incorporated | Cooling medical pad |
US9687386B2 (en) | 2010-09-10 | 2017-06-27 | Medivance Incorporated | Cooling medical pad |
WO2014066842A3 (en) * | 2012-10-26 | 2015-07-23 | Medivance Incorporated | Wound dressing |
US10441458B2 (en) | 2015-01-27 | 2019-10-15 | Medicance Incorporated | Medical pad and system for thermotherapy |
US11234859B2 (en) | 2015-01-27 | 2022-02-01 | Medivance Incorporated | Medical pad and system for thermotherapy |
US11865034B2 (en) | 2015-01-27 | 2024-01-09 | Medivance Incorporated | Medical pad and system for thermotherapy |
Also Published As
Publication number | Publication date |
---|---|
US7823219B2 (en) | 2010-11-02 |
US20060064800A1 (en) | 2006-03-30 |
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