IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0554431
(2009-09-04)
|
등록번호 |
US-8234727
(2012-08-07)
|
발명자
/ 주소 |
- Schreiber, Austin
- Patmore, Kevin
|
출원인 / 주소 |
|
대리인 / 주소 |
Warner Norcross & Judd LLP
|
인용정보 |
피인용 횟수 :
15 인용 특허 :
27 |
초록
▼
A patient transfer device includes a mat, with an upper side and a gas permeable lower side. The mat includes a chamber between its upper and lower sides, which is operable to be in fluid communication with an air source such that when air flows into the mat, the air will flow into the chamber and t
A patient transfer device includes a mat, with an upper side and a gas permeable lower side. The mat includes a chamber between its upper and lower sides, which is operable to be in fluid communication with an air source such that when air flows into the mat, the air will flow into the chamber and through the gas permeable lower side to form an air film between the mat and a surface on which the mat is supported at its lower side. In addition, the lower side of the mat is substantially planar when the mat is inflated. A system for controlling the inflation of the mat may be used that automatically adjusts for the inflation of the mat during patient transfer.
대표청구항
▼
1. A patient transfer device comprising: a mat, the mat having an upper side and a lower side, the upper side being adapted to limit the flow of fluid through at least a substantial portion of the upper side, and the lower side having a generally liquid impermeable, gas permeable portion;the mat inc
1. A patient transfer device comprising: a mat, the mat having an upper side and a lower side, the upper side being adapted to limit the flow of fluid through at least a substantial portion of the upper side, and the lower side having a generally liquid impermeable, gas permeable portion;the mat including a chamber between its upper and lower sides, the chamber being operable to be in fluid communication with an air source such that when air flows into the mat, the air will flow into the chamber and through the gas permeable portion of the lower side to form an air film between the mat and a surface on which the mat is supported at its lower side; andthe lower side of the mat being substantially planar when the mat is inflated. 2. The patient transfer device according to claim 1, wherein the mat is configured so that the upper and lower sides remain substantially parallel even when the chamber is filled with air. 3. The patient transfer device according to claim 1, further comprising an intermediate layer, the chamber formed in the intermediate layer, the mat having a thickness measured from the upper side, through the intermediate layer, and to the lower side, the intermediate layer interconnecting the upper side to the lower side and providing a substantially continuous connection between the upper and lower sides wherein the thickness of the mat remains substantially uniform across its width and length when the inflated but unloaded with a patient. 4. The patient transfer device according to claim 1, wherein the mat has a thickness measured from through the upper side, the chamber, and the lower side, the thickness of the mat being less than 3″ when the chamber is inflated but unloaded with a patient and the mat generates an air film at the lower side sufficient to transfer a patient. 5. The patient transfer device according to claim 1, wherein the chamber has volume of less than 6 cubic foot when the chamber is inflated and the mat generates an air film at the lower side sufficient to transfer a patient. 6. The patient transfer device according to claim 1, wherein the mat includes a gas and liquid impermeable barrier at the upper side to thereby form the upper side. 7. The patient transfer device according to claim 6, wherein the gas and liquid impermeable barrier is formed from a liquid and gas impermeable sheet. 8. The patient transfer device according to claim 1 wherein the generally liquid impermeable, gas permeable portion is liquid impermeable for liquids below 50 psi. 9. The patient transfer device according to claim 8, wherein the substantially liquid impermeable, gas permeable barrier is formed from a substantially liquid impermeable, gas permeable sheet, the substantially liquid impermeable, gas permeable sheet comprising: (a) a non-woven sheet with a plurality of perforations that are sized to permit gas to flow through the substantially liquid impermeable, gas permeable sheet but to limit the flow of a liquid therethrough or (b) a woven sheet with a plurality of interstices, the interstices being sized to permit gas to flow through the woven sheet but to limit the flow of a liquid therethrough. 10. The patient transfer device according to claim 1, further comprising an intermediate layer having upper and lower surfaces, the chamber formed in the intermediate layer, and the upper side of the mat is formed on the upper surface of the intermediate layer. 11. The patient transfer device according to claim 10, wherein the lower side is formed on the lower surface of the intermediate layer. 12. The patient transfer device according to claim 1, wherein the mat comprises an open cell foam, a three dimensional (3D) fabric, or a drop stitch fabric. 13. The patient transfer mat according to claim 1, further comprising at least one flange extending from the mat. 14. A patient transfer mat comprising: an upper surface;a liquid and gas permeable compressible layer; anda generally liquid impermeable, gas permeable barrier forming a lower surface of the mat, the liquid and gas permeable compressible layer providing a substantially continuous connection between the gas permeable barrier and the upper surface to form a substantially monolithic body, the liquid and gas permeable compressible layer forming a chamber which is adapted to be in fluid communication with a supply of air, wherein when inflated the air in the chamber flows though the gas permeable barrier to form an air film between the lower surface of the mat and a surface on which the mat is supported at its lower surface. 15. The patient transfer mat according to claim 14, wherein the compressible layer comprises an open cell foam, a three-dimensional (3D) fabric, or a drop stitch fabric. 16. The patient transfer mat according to claim 14, wherein the compressible layer has a substantially uniform thickness. 17. The patient transfer mat according to claim 14, further comprising at least one flange extending from the mat. 18. The patient transfer mat according to claim 17, wherein the flange has a sufficient lateral extent for inserting under a mattress or other support surface when the mat is positioned on a mattress or other support surface. 19. The patient transfer mat according to claim 17, wherein the flange is inflatable. 20. A method of making a patient transfer mat, the method comprising: forming an upper side;forming a generally liquid impermeable, gas permeable lower side;forming a substantially continuous connection between the upper side and the lower side;forming a chamber between the upper side and the lower side through the connection;extending the connection across at least a portion of the width and length of the mat; andforming an inlet in fluid communication with the chamber for inflating the mat with a fluid. 21. A method of transferring a patient comprising: providing a mat with an upper side, a generally liquid impermeable, gas permeable lower side, and a chamber therebetween;placing the mat on a surface;placing a patient on the mat;directing gas into the chamber thereby inflating the mat and forming a gas film at the lower surface;the inflating raising the patient no more than 1 inch above the surface; andpulling on the mat to thereby move the patient from the surface onto another surface.
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