US20090125083A1 - Contamination avoiding device - Google Patents
Contamination avoiding device Download PDFInfo
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- US20090125083A1 US20090125083A1 US12/352,999 US35299909A US2009125083A1 US 20090125083 A1 US20090125083 A1 US 20090125083A1 US 35299909 A US35299909 A US 35299909A US 2009125083 A1 US2009125083 A1 US 2009125083A1
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- person
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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
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
- A61F5/013—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations for the arms, hands or fingers
Abstract
A device for minimizing the absorption of pathogens collected on a person's hands by contact between the hand and the face of said person, includes a barrier placed in the crook of the elbow that limits the flexion of the elbow as the hand approaches the face. In an alternate embodiment of the invention, a proximity sensor is positioned on a part of the person's body to sense and warn the person that a hand is about to touch the face. An audio or visual warning signal or a mechanical or electrical stimulation may be triggered by the output of the sensor. A method is also provided for progressively weaning the person from reliance on said devices.
Description
- This is a divisional of copending U.S. patent application Ser. No. 11/449,963 filed Jun. 9, 2006.
- This invention relates generally to apparatuses for preventing or correcting certain behaviors and more specifically inadvertent transfer of infectious pathogens from the hand to the face where they can be easily absorbed through the nose, mouth or eyes.
- It is well documented that one primary channel of infectious pathogen transfer from one person to another is the latter's touching an infected one or contacting a contaminated object, then touching his or her face with the now contaminated hand. Pathogens lying around the nose, eyes or mouth can be easily absorbed. The phenomenon is particularly common in connection with cold and flu viruses.
- By the very nature of such interactions, it is virtually impossible to prevent contamination of the hands. The simple act of handling money, using restaurant flatware, or touching a door handle may result in the gathering of infectious pathogens.
- Absorption of these pathogens through the eyes, nose or mouth can be limited by the wearing of goggles and face masks. However, those precautionary implements are cumbersome, can be aesthetically undesirable and can otherwise interfere with normal activities.
- The instant invention provides a practical way to minimize the absorption of pathogens collected on a person's hands by causing that person to be aware that his hand is about to touch his face, and by deterring the person from doing so. A foldable or compressible implement placed in the crook of the elbow tracks and either limits the range of flexion of the elbow, or provides a substantial resistance to such a flexion that brings the person's attention to the fact that the hand may be about to touch the face. The invention also proposes a variety of proximity sensors and indicators to that effect. A treatment method is also provided for training a person into avoiding contacting the face with one's hand. In a first phase, one of the most restrictive of the proposed devices such as the flexion limiting one is used over a period of time, as well as one of the warning indicators. In a second phase, a less forceful or conspicuous pressure or proximity detector reminds the person that he or she might be reverting to a compulsive habit of face touching.
- Some embodiments provide a device for minimizing the absorption of pathogens by a person through contact of said person's face by one of said person's hands, which comprises means for limiting the range of movement of said hand toward said face. Some embodiments further comprise means for deterring said person from manually touching said face. In some embodiments said means for limiting comprise: a hinge having first and second wings rotatively joined at a fulcrum point, said first wing being secured to a forearm of said person, said second wing being secured to an upper arm of said person, and said fulcrum point being placed over an antecubital fossa between said forearm and upper arm; and means for restricting the range of rotation of said hinge. In some embodiments said means for limiting comprise: a hinge having first and second wings rotatively joined at a fulcrum point; said first wing being secured to a forearm of said person, said second wing being secured to an upper arm of said person, and said fulcrum point being placed over an antecubital fossa between said forearm and upper arm; means for restricting the range of rotation of said hinge; wherein, said means for deterring comprise: an E.M.R. emitter and an E.M.R. detector mounted on alternate ones of said wings; and means for signaling to said person when said detector senses a given E.M.R. level from said emitter. In some embodiments said means for signaling comprise a sensory stimulus element selected from the group consisting of: an audible signal generator; an electrical shock generator; and, a visual indicator. In some embodiments said means for limiting comprise a resiliently compressible member placed over the antecubital fossa of said arm. In some embodiments said member comprises a hermetically sealed and inflated bladder. In some embodiments said means for deterring comprise: a proximity sensor between said hand and said face; and means responsive to said sensor for signaling said person when said hand approaches said face. In some embodiments said means for signaling comprise a pain-inducing mechanism.
- Some embodiments provide a device for warning a person that one of said person's hands is about to touch said person's face, which comprises a proximity sensor and a signal generator responsive to said detector. In some embodiments said proximity sensor is mounted proximal said person's face.
- Some embodiments provide a device for signaling to a person that one of said person's hands is about to touch said person's face, which comprises a position sensor mounted on one of said person's forearms. In some embodiments said sensor is positioned to detect a substantially vertical orientation of said forearm. In some embodiments said sensor comprises a face to palm proximity detector.
- Some embodiments provide a device for signaling to a person that one of said person's hands is about to touch said person's face, which comprises: a sleeve shaped and dimensioned to fit over the upper part of one each of said person's forearm, elbow and lower part of arm; a cable anchored at one end to said upper part and at an opposite end to said lower part, and passing behind said elbow; and means for detecting tension of said cable.
- Some embodiments provide a device for minimizing the absorption of pathogens by a person through contact of said person's face by said person's hand, which comprises: a first activatable sensory stimulus element; a second activatable sensory stimulus element; a detector adapted to detect two or more orientation conditions of said hand; and a trigger responsive to said detector, said trigger being adapted to selectively activate said first and second elements. In some embodiments said orientation conditions comprise an event selected from the group consisting of: a relative location between said hand and said face being less than a first given distance; a relative location between said hand and said face being less than a first given distance for a given time period; and, a relative location between said hand and said face being less than a second given distance which is less than said first given distance.
- Some embodiments provide a method for minimizing the absorption of pathogens by a person through contact between said person's hands and said person's face which comprises the step placing in the antecubital fossa of each of said person's arms an object shaped and sized to limit the range of movement of said hands toward said face. In some embodiments the method further comprises the step of: sensing the flexion of said arm about said fossa; and signaling to said person when said flexion reaches a given level. In some embodiments said signaling comprises emitting an audible signal. In some embodiments said signaling comprises applying a sensory stimulus to a part of said person's body. In some embodiments the method further comprises: in a second subsequent phase, removing said object; whereby said flexion is no longer limited, but said person is warned of an impeding contact between hand and face. In some embodiments the method further comprises, in a subsequent third phase, eliminating said signaling, and installing into said fossa a compressible member shaped and sized to apply a light pressure against said fossa upon said flexion without limiting the range of said flexion. In some embodiments the method further comprises: in a first phase, performing said limiting and said sensing steps; and in a second phase, eliminating said limiting and said sensing steps; and installing into said fossa a compressible member shaped and sized to apply a light pressure against said fossa upon said flexion without limiting the range of said flexion. In some embodiments the method further comprises progressively reducing said intensity over a period of time.
- In some embodiments there is provided a method for minimizing the absorption of pathogens by a person through contact between said person's hands and said person's face, which comprises: sensing one of said hands approaching said face; and in response to said sensing, signaling said person that one of said hand approaches said face. In some embodiments said sensing comprises applying a sensory stimulus of a given intensity to a part of said person's body. In some embodiments said method further comprises progressively reducing said intensity over a period of time.
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FIG. 1 illustrates a person equipped with a variety of hand-to-face avoidance devices. -
FIG. 2 is a diagrammatic perspective view of a first type of elbow flexion limiting device. -
FIG. 3 is a diagrammatic perspective view of a first alternate version thereof. -
FIG. 4 is a diagrammatic side view of a modified version of the device ofFIG. 2 . -
FIG. 5 is a diagrammatic perspective view of an elbow flexion signaling device. -
FIG. 6 is a diagrammatic perspective view of another embodiment thereof. -
FIG. 7 is a diagrammatic partial cross-sectional side view of another embodiment thereof. - Referring now to the drawing, there is shown in
FIG. 1 , a person 1 equipped with a variety ofdevices 2, 3 and 4 intended to minimize the absorption of pathogens through contact of said person's face by one of said person's hands by heightening his or her awareness that the hand is in close proximity to the face. Two of thedevices 2, 3 are designed to limit the range of movement of the person's hands toward the face. More specifically, the devices limit the degree of flexion of the elbows to approximately 135 degrees from full extension of the arm and forearm. - The
first device 2, more specifically illustrated inFIG. 2 , comprises a hinge having two wings 5, 6 rotatively joined at a fulcrum point 7. The fulcrum point is placed over the antecubital fossa, i.e., in the crook of the person's elbow. A first wing 5 is secured to theupper arm 8 by astrap 9, and the second wing 6 is secured to theforearm 10 by asimilar strap 11. Abarrier 12 mounted on the first wing 5 and projecting toward the second wing 6 prevents the wings from folding flatly against each other, and consequently, limits the flexion of the elbow. When folded to a point where thebarrier 12 contacts the second wing 6, the hand at the end of theforearm 10 cannot be made to touch the face of the person without extensive and deliberate rotation of the person's shoulder. In other words, the device limits the swinging or hinge-like movement of the arm, thereby enabling the person to freely move his arm in a natural way up to a predetermined point where further movement is limited so that the person is made aware of the position of the hand, and in most instances cannot touch the face without assuming a forced, cramped, uncomfortable or otherwise unnatural position. Accordingly, the person will be deterred and trained from bringing the hand, which may have been contaminated by contact with a door knob or the like, in contact with the face where infectious pathogens transferred thereupon could be easily absorbed through the mouth, the eyes or the nose. - A pair of cooperating electromagnetic radiation (E.M.R.) emitter and
detector sensory stimulus element 15 mounted on awristband 16. The audio signal generator can include a volume adjustment to minimize noise interference with others. Alternately, or in addition to such a warning element, a wristband may includeelectrodes 25 in contact with the skin that can generate and discharge a mild electric warning shock to the arm. Such a shock or mild pain-inducing, or other negatively reinforcing event causing mechanism can also be mounted in the back of any of the disclosed devices. Upon experiencing the unnatural or unpleasant sensation, the person is discouraged from continuing the behavior. In this way, there can be a more rapid training of the person since awareness is heightened or the negatively reinforcing event occurs soon after or contemporaneously with the occurrence of the unwanted behavior. - The alternate embodiment of the flexion limiting device 3 illustrated in
FIG. 3 , comprises a sealed andinflatable bladder 17 made of twopouches median section 20. The device acts essentially like the earlier describedhinge 2. Each section of the bladder is secured to either the forearm or upper arm so that the medianflexible portion 20 is located over the antecubital fossa of an elbow. Thebladder 17 is inflated in order to provide a resiliently compressible barrier that resists flexion of the elbow. Visible through a cutout in the drawing, a pressuresensitive vibrator 22 is used to warn the person that the face is about to be contacted by the hand. - The third contact-deterring device 4 is a proximity sensor that can provide a signal when approached by one of the person's hands. Such a sensor is preferably worn on a
chain 23 hanging from the person's neck. The sensor may be of the doppler radar type which detects the echo of radio frequency waveforms. It could also respond to the detection of E.M.Rs. generated by anemitter 24 mounted on the person's wrist. - The emitter and proximity sensor may be of the type described in U.S. Pat. No. 6,762,687, which patent is incorporated herein by this reference, or any other type well-known to the art.
- Illustrated in
FIG. 4 is a modifiedversion 40 of the hinged device ofFIG. 2 in which abar 41 of elastomeric material is secured to the inner face of one of the hinge wings. The bar can comprise threecoaxial layers bar 41 offers increasing resistance to the folding movement. The wearer is thus warned that his hand may be moving toward his face. Further, thebar 41 can be removably fastened to the wing by a tongue-in-groove orother type fastener 45 so that a number of bars, each having a different uniform hardness, different layered hardnesses, and/or different sizes can be provided as a kit. In this way, the hinged device can be adjusted to allow greater freedom of movement as the course of training progresses. - Another type of
embodiment 48 of elbow flexion signaling device is shown inFIG. 5 . Acable 49 is imbedded into asleeve 50 made of fabric or other stretchable material. The sleeve is shaped and dimensioned to fit over the elbow. The cable is preferably slidingly constrained within a flexible channel ortube 51 running along the back of the elbow. The cable is anchored at afirst end 52 to the part of the sleeve covering the upper section of the forearm and at theopposite end 53 to the part of the sleeve associated with the lower section of the arm. Astrain gauge 54 or other type of stain transducer connected to the cable provides a signal proportional to the degree of elbow flexion. Alternately, one end of the cable is secured to a normallyopen switch 55 at one of the cable anchor points. Flexion of the elbow causes a closure of the switch applying power to an indicator. Acoil spring 56 is mounted in series with the cable in order to absorb any excessive pull on the switch or strain gauge. - Yet another
embodiment 60 of elbow flexion monitoring device is illustrated inFIG. 6 . An orientation ortilt sensor 61 mounted on acuff 62 worn around the wrist or forearm, provides a signal when the forearm is brought to a substantially vertical position. Such a sensor can be implemented with a Series 3004 tilt switch manufactured by SIGNAL SYSTEMS CORPORATION and commercially available from JAMECO ELECTRONICS of Belmont, Calif. A directional E.M.F.emitter 63 mounted on the inner side of the forearm works in cooperation with the a detector such as the one 14 shown inFIG. 2 , to indicate that the palm of thehand 64 is turned toward theface 65 and about to come into contact with it. The output signals of the tilt and proximity sensors can be used singly or in combination to generate a warning indication. -
FIG. 6 also illustrates the packaging of the device shown inFIG. 2 in apouch 66 associated with anelbow sleeve 67 of the type illustrated inFIG. 5 . Alternately, a cinchable cuff of the type used in connection with a sphygmomanometer may be substituted for the sleeve. - Yet another embodiment of elbow flexion monitoring device is illustrated in
FIG. 7 which shows that asingle device 70 can be adapted to carry a number of different types of activatable and deactivatable sensory stimuli elements. The device is similar to the hinged device ofFIG. 4 by providing twowings flexible web 73 thereby rotatively joining the wings at afulcrum point 74. Aremovable positioning rib 75 can be fastened to project from aouter face 76 of the firstproximal wing 71 to engage the antecubital fossa to help prevent migration of the device in persons having well developed musculature. A number of ribs having different heights Hr can be provided in a kit allowing adaptation of the hinge device to suit different anatomies. The rib can be removably fastened to the wing by means of a tongue-in-groove type fastener. - A
barrier 77 mounted on the inner face of thefirst wing 71 and projecting toward the seconddistal wing 72 prevents the wings from folding flatly against each other, thereby limiting flexion. Abar 78 of elastomeric material is secured to the inner face of theproximal wing 71 against the barrier to provide a stepped level of resistance to compression. Amulti-poled activation switch 79 configures the device by activating one or more of the stimulus-causing elements such as avibrator 80 and mildelectric shock generator 81. A pair of momentary “on” push button switches 82,83 are located to be actuated at different angular positions between the two wings. Further, a first one of theswitches 82 can be positioned within the elastomeric bar so that it is actuated after contact between thesecond wing 72 and thebar 78 has occurred. Alternately, a removable switchactuating extension prong 85 can be provided to adjust the angle at witch theswitch 82 is actuated. Thesecond switch 83 can be formed into thebarrier 77 and located to be actuated at a given angular orientation of the wings. - In this way, the device can be configured to provide increasingly unpleasant stimuli as the angle between the wings is reduced. For example, at a first acute angle the person feels a flexion resistance when the elastomeric bar is compressed. At an even smaller angle, the vibrator is turned on, and at even a smaller angle the person receives a mild electric shock.
- Further, a timer circuit can be used to delay the onset of the vibration or shock stimuli until the switch has been on over a threshold period of time. Alternately, for example, the electric shock generator can be configured to never activate if the person does not require such an unpleasant stimulus. Those skilled in the art will appreciate the implementation of these functions through electronic circuitry and including the use of microprocessors.
- Further, the
switches bar 78 act as orientation detectors adapted to detect two or more orientation conditions of the user's hand and trigger two different stimuli. It should be noted that such conditions can be events such as the location of the user's hand being within a given distance of the face as measured by the angle formed between the wings, and the first stimulus would be the sensation of pressure or a limiting of movement caused by thebar 78 contacting theopposite wing 72. This condition may have already turned onswitch 82. A second orientation condition or event could be the wings remaining at the same angle and the hand remaining at the same distance from the face, but that a sufficient time period has passed as measured by a microelectronic clock started at thetime switch 82 was turned on. Another orientation condition event could be the wings being brought further together to activateswitch 83 causing an immediate mild electric shock. - A combination of the above-described devices can be advantageously used in correcting a person's tendency to inadvertently touch his or her face. In a first phase lasting a short period of time, one of the flexion
restrictive devices 2, 3 is used along with one or more of theproximity sensor 14 and, optionally, a signaling element or sensory stimulus element, such as a pressure increasing element, vibration, mild shock after a timed duration, orvisual indicator 15. In a subsequent, second phase, the restrictive device is removed. The proximity sensor and indicator may be kept or a small flexion-resisting device, such as the partially deflated bladder device 3, is worn by the person. The flexion-resisting device is sized or inflated so that it does not interfere with the full flexion of the elbow, but exerts enough pressure on the arm and forearm to make the person aware that the hand may be approaching the face. - It should be understood that the intensity of the sensory stimulus triggered by the above-described devices can be made proportional to the degree of elbow flexion or the proximity of the hand to the face. While a person may initially react to a high level of stimulus, he will eventually become responsive to a lower level. Accordingly, the intensity of the stimulus is preferably adjustable by means of a rheostat or other amplitude-controlling implement. As the person eventually becomes more sensitized to the stimulus, the intensity is progressively reduced over a period of time until the compulsive face-touching habit disappears and the device is no longer needed.
- In an optional, subsequent third phase, only the flexion-resisting device is used until the person has completely overcome his or her face-touching habit.
- While the preferred embodiments of the invention have been described, modifications can be made and other embodiments may be devised without departing from the spirit of the invention and the scope of the appended claims.
Claims (19)
1. A device for minimizing the absorption of pathogens by a person through contact of said person's: face by said person's hand, which comprises:
an activatable sensory stimulus element;
a detector adapted to detect two or more orientation conditions of said hand; and
a trigger responsive to said detector, said trigger being adapted to selectively activate said stimulus element upon detection of each of said conditions.
2. The device of claim 1 , wherein said orientation conditions comprise an event selected from the group consisting of:
a relative location between said hand and said face being less than a first given distance;
a relative location between said hand and said face being less than a first given distance for a given time period; and,
a relative location between said hand and said face being less than a second given distance which is less than said first given distance.
3. The device of claim 1 , wherein said detector comprises: a proximity sensor for sensing a distance between said hand and said face.
4. The device of claim 3 , wherein said detector further comprises a timer associated with said proximity sensor for tracking a duration that said distance is less than or equal to a given distance.
5. The device of claim 3 , wherein said proximity sensor is mounted proximal said person's face.
6. The device of claim 1 , wherein said detector comprises a position sensor mounted on one of said person's forearms, wherein said sensor is positioned to detect a substantially vertical orientation of said forearm.
7. The device of claim 1 , wherein said activatable sensory stimulus element comprises a first stimulus generator selected from the group consisting of:
an audible signal generator;
an electrical shock generator;
a pressure inducing mechanism;
a pain inducing mechanism; and,
a visual indicator.
8. The device of claim 7 , which further comprises a second stimulus generator selected from the group consisting of:
an audible signal generator;
an electrical shock generator;
a pressure inducing mechanism;
a pain inducing mechanism; and,
a visual indicator.
9. The device of claim 8 , wherein said first stimulus generator creates a stimulus different from said second stimulus generator.
10. The device of claim 1 , wherein said stimulus element generates a first stimulus in response to said detector detecting a first of said orientation conditions, and wherein said stimulus element generates a second stimulus in response to said detector detecting a second of said orientation conditions; wherein said first stimulus is different from said second stimulus.
11. The device of claim 10 , wherein said first stimulus differs from said second stimulus in duration, intensity, or type.
12. The device of claim 1 , which further comprises: means for adjusting an intensity output of a sensory stimulus generated by said activatable sensory stimulus element.
13. The device of claim 3 , wherein an intensity of a sensory stimulus of said activatable sensory stimulus element is made proportional to said distance.
14. The device of claim 1 , wherein said activatable sensory stimulus element comprises means for limiting the range of movement of said hand toward said face.
15. The device of claim 14 , wherein said means for limiting comprise:
a hinge having first and second wings rotatively joined at a fulcrum point, said first wing being secured to a forearm of said person, said second wing being secured to an upper arm of said person, and said fulcrum point being placed over an antecubital fossa between said forearm and upper arm; and
means for restricting the range of rotation of said hinge.
16. The device of claim 14 , wherein said means for limiting comprise:
a hinge having first and second wings rotatively joined at a fulcrum point;
said first wing being secured to a forearm of said person, said second wing being secured to an upper arm of said person, and said fulcrum point being placed over an antecubital fossa between said forearm and upper arm;
means for restricting the range of rotation of said hinge;
wherein, said means for deterring comprise:
an E.M.R. emitter and an E.M.R. detector mounted on alternate ones of said wings; and
means for signaling to said person when said detector senses a given E.M.R. level from said emitter.
17. The device of claim 14 , wherein said means for limiting comprise a resiliently compressible member placed over the antecubital fossa of said arm.
18. The device of claim 17 , wherein said member comprises a hermetically sealed and inflated bladder.
19. The device of claim 1 , which further comprises:
a sleeve shaped and dimensioned to fit over the upper part of one each of said person's forearm, elbow and lower part of arm;
a cable anchored at one end to said upper part and at an opposite end to said lower part, and passing behind said elbow; and
means for detecting tension of said cable.
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Also Published As
Publication number | Publication date |
---|---|
US20070283966A1 (en) | 2007-12-13 |
US7476102B2 (en) | 2009-01-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |