IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0714039
(2007-03-05)
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등록번호 |
US-7650654
(2010-02-24)
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발명자
/ 주소 |
- Lambarth, Cliff
- Lewandowski, Jeff
- Stryker, Martin
- Kneen, Jason
|
출원인 / 주소 |
|
대리인 / 주소 |
Van Dyke, Gardner, Linn & Burkhart, LLP
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인용정보 |
피인용 횟수 :
17 인용 특허 :
11 |
초록
▼
A transfer device includes a first sheet portion having an outer side and an inner side and a second sheet portion having an outer side and an inner side, with the inner sides arranged so that they are facing each other. The outer sides each have a high coefficient of friction surface. The first she
A transfer device includes a first sheet portion having an outer side and an inner side and a second sheet portion having an outer side and an inner side, with the inner sides arranged so that they are facing each other. The outer sides each have a high coefficient of friction surface. The first sheet portion and the second sheet portion are releasably coupled together to thereby limit relative movement of the first sheet portion to the second sheet portion. When the coupling is released, the first sheet portion and the second sheet portion can move relative to each other.
대표청구항
▼
We claim: 1. A patient transfer device comprising: a first sheet portion having an outer side and an inner side; a second sheet portion having an outer side and an inner side, and said inner side of said second sheet portion facing and forming a chamber with said inner side of said first sheet port
We claim: 1. A patient transfer device comprising: a first sheet portion having an outer side and an inner side; a second sheet portion having an outer side and an inner side, and said inner side of said second sheet portion facing and forming a chamber with said inner side of said first sheet portion; and said chamber being sealed and evacuated of air wherein said inner side of said first sheet portion is releasably directly or indirectly coupled to said inner side of said second sheet portion wherein said coupling limits translational movement of said first sheet portion relative to said second sheet portion, and when said chamber is opened said coupling is released and said first sheet portion is slidable relative to said second sheet portion wherein a patient supported on said first sheet portion may be transferred across a surface on which said second sheet portion is supported. 2. The patient transfer device according to claim 1, said chamber having a medium provided therein, said medium releasably coupling, either directly or indirectly, said first sheet portion to said second sheet portion. 3. The patient support device according to claim 2, wherein said medium comprises a vacuum pressure frictionally coupling said first sheet portion to said second sheet portion to limit translational movement of said first sheet portion relative to said second sheet portion, and when said vacuum pressure is released said first sheet portion is translatable relative to said second sheet portion. 4. The patient transfer device according to claim 3, wherein said vacuum pressure directly frictionally couples said inner side of said first sheet portion to said inner side of said second sheet portion. 5. The patient transfer device according to claim 3, further comprising an intermediate member, wherein said vacuum pressure indirectly frictionally couples said first sheet portion to said second sheet portion through said intermediate member. 6. The patient transfer device according to claim 3, wherein said patient transfer device is adapted to form a plurality of channels in said chamber, said channels extending across at least a portion of said chamber to facilitate the distribution of the vacuum pressure through said chamber. 7. The patient transfer device according to claim 6, wherein one of said inner sides includes a plurality of ridges to thereby form said channels. 8. The patient transfer device according to claim 6, further comprising a third sheet portion positioned in said chamber, said third sheet portion having a plurality of ridges or passageways formed therein to form said channels. 9. The patient transfer device according to claim 3, further comprising a vacuum release device for releasing said vacuum pressure. 10. The patient transfer device according to claim 9, wherein said vacuum release device comprises a tab, when pulled said tab creating an aperture in said first sheet portion or second sheet portion. 11. The patient transfer device according to claim 1, wherein said first sheet portion and said second sheet portion are formed from a single sheet. 12. The patient transfer device according to claim 1, wherein at least one of said inner sides has a low coefficient of friction surface. 13. The patient transfer device according to claim 12, wherein said low coefficient of friction surface comprises a lubricious polymer surface. 14. The patient transfer device according to claim 1, wherein each of said outer sides of said first sheet portion and said second sheet portion includes a surface with a higher coefficient of friction than at least one of said inner sides. 15. The patient transfer device according to claim 14, wherein each of said outer sides includes a rubber surface or a surface with a rubber characteristic to thereby form said surfaces with higher coefficients of friction. 16. The patient handling device according to claim 1, wherein at least one of said first sheet portion and said second sheet portion comprises a saran polyvinylidene chloride. 17. The patient handling device according to claim 1, wherein at least one of said first sheet portion and said second sheet portion comprises a polyethylene material. 18. The patient transfer device according to claim 1, wherein said patient transfer device comprises a first patient transfer device, and said first patient transfer device being in combination with a second patient transfer device, and said second patient transfer device being coupled to said first patient transfer device. 19. The patient transfer device according to claim 1, further comprising a handle coupled to said first sheet portion or said second sheet portion. 20. The patient transfer device according to claim 1, further comprising an intermediate member disposed between said first sheet portion and said second sheet portion, said intermediate member releasably coupling said first sheet portion to said second sheet portion. 21. A patient transfer device comprising: a first sheet portion having an outer side and an inner side; a second sheet portion having an outer side and an inner side, said inner side of said second sheet portion facing and forming a chamber with said inner side of said first sheet portion and either (a) contacting said inner side of said first sheet portion or (b) bearing on said inner side of said first sheet portion through an intermediate member; and said chamber being sealed and evacuated of air wherein said inner side of said first sheet portion is frictionally coupled, directly or indirectly, to said inner side of said second sheet portion wherein said frictional coupling limits translational movement of said first sheet portion relative to said second sheet portion, and when said chamber is opened said frictional coupling is reduced and said inner surface of said first sheet portion either remains (a) in contact with said inner surface of said second sheet portion or (b) bearing on said inner surface of said first sheet portion through an intermediate member but is slidable relative to said second sheet portion wherein a patient supported on said first sheet portion may be transferred across a surface on which said second sheet friction is supported. 22. The patient transfer device according to claim 21, wherein said inner side of one of said first sheet portion and said second sheet portion comprises a low friction surface. 23. The patient transfer device according to claim 21, further comprising a medium provided between said first sheet portion and said second sheet portion, said medium providing said frictional coupling. 24. The patient transfer device according to claim 23, wherein said medium comprises a vacuum pressure. 25. The patient transfer device according to claim 21 further comprising an intermediate member positioned between said first sheet portion and said second sheet portion, said intermediate member coupling said first sheet portion to said second sheet portion. 26. The patient transfer device according to claim 21, wherein at least one of said first sheet portion and said second sheet portion comprises a material selected from the group consisting of a polyethylene, a saran polyvinylidene chloride, and an anti-static or static dissipative material. 27. The patient transfer device according to claim 21, wherein said first sheet portion and said second sheet portion are formed from a single sheet. 28. The patient transfer device according to claim 27 wherein said sheet forms a closed loop. 29. A patient transfer device comprising: a closed loop of flexible material having an upper portion and a lower portion, each portion have an outer surface and an inner surface, and said closed loop having opposed ends; each of said outer surfaces comprising a high coefficient of friction surface; said opposed ends of said closed loop being closed to thereby form a closed chamber between said ends and said upper and lower portions; and said closed chamber being sealed and being evacuated but being adapted to open, wherein when said chamber is evacuated a normal force is generated between said upper and lower portions such that said upper and lower portions are frictionally coupled, either directly or indirectly, to thereby limit translational movement of said upper portion relative to said lower portion, and when said chamber is opened and said coupling is released and a shear force is applied to said upper portion, said upper portion and said lower portion slide relative to each other such that a patient supported on said upper surface can be transferred across a surface on which said lower portion is supported. 30. The patient transfer device according to claim 29, wherein said patient transfer device is adapted to form a plurality of channels extending through at least a portion of said chamber. 31. The patient transfer device according to claim 30, wherein one of said inner surfaces includes a plurality of ridges or passageways to thereby form said channels. 32. The patient transfer device according to claim 29, wherein at least one of said inner surfaces comprises a low friction surface. 33. The patient transfer device according to claim 29, further comprising a vacuum release device for selectively releasing said vacuum pressure. 34. A patient transfer system comprising: first and second patient transfer devices coupled together, each of said patient transfer devices comprising: a first sheet portion having an inwardly facing surface and an outer perimeter, a second sheet portion having an inwardly facing surface and an outer perimeter; said inwardly facing surface of said first sheet portion and said inwardly facing surface of said second sheet portion forming a chamber, said chamber being evacuated to releasably couple together said inwardly facing surfaces inwardly of said outer perimeters to thereby limit relative translational movement of said first sheet portion to said second sheet portion, and when said coupling is released, said first sheet portion sheet portion and said second sheet portion are slidable relative to each other wherein a patient supported on said first sheet portion may be transferred across a surface on which said second sheet portion is supported. 35. The patient transfer device according to claim 34, wherein said first and second patient transfer devices are coupled together by at least one tab. 36. The patient transfer device according to claim 34, wherein each of said first and second patient transfer devices includes a handle. 37. The patient transfer device according to claim 34, wherein each of said first sheet portion and said second sheet portion includes an outer side, at least one of said outer sides comprising a high coefficient of friction surface. 38. The patient transfer device according to claim 34, wherein said coupling comprises a frictional coupling. 39. The patient transfer system according to claim 38, said chamber being adapted to form a vacuum pressure, and said vacuum pressure generating said frictional coupling between said first sheet portion and said second sheet portion. 40. The patient transfer system according to claim 39, wherein each of said patient transfer devices includes a vacuum pressure release device.
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