US3769642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Patient transfer method and apparatus
Assignee: Individual
•
Filing: 1971-03-29
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Granted: 1973-11-06
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Expires: 1991-03-29
Abstract
Abstract A patient transfer method and apparatus employs a sheet or continuous band of cloth or similar material wide enough to span the patient''s bed and gurney alongside the bed to which the patient is to be transferred with at least the portion of the sheet on the bed doubled back toward the gurney. The patient is moved to lie on the doubled portion and by pulling the edge of a top layer or pushing on the patient, he is transferred as the top of the double layers slides over the bottom layer. The transfer is facilitated by giving the surface of the sheet or band on the inside of the double layer a lower coefficient of friction than the surface on the other side.
Inventors
- 👤 B Warman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:25
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/10; A61G7/104; A61G7/1046; A61G7/1025; A61G7/1026; Y; Y10; Y10S; Y10S5/00; Y10S5/925
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
223 words
A patient conveyor for use in transferring a patient across a generally horizontal surface such as a bed and adjacent gurney comPrising: a thin flexible sheet of material adapted to be disposed over said generally horizontal surface; said sheet having a first surface characterized by a low coefficient of friction between said first surface in contact with itself; and a second surface on the opposite side of said sheet from said first surface, said second surface characterized by a coefficient of friction with said generally horizontal surface which is higher than that between said first surface in contact with itself; said sheet adapted initially to be disposed over those portions of said horizontal surface occupied by said patient before and to be occupied during and after his being conveyed with at least one portion of said sheet doubled back over and upon said sheet a distance of at least approximately the width of said patient; said doubled back portion being over that portion of said horizontal surface occupied by said patient before he is conveyed with said first surface on the inside of said doubled back portion whereby the portion of said sheet forming the top of said doubled back portion with said patient thereon can be easily slid across the bottom of said doubled back portion with the effort of an attendant.
Claim 2
Dependent Claim
223 words
A patient conveyor for use in transferring a patient across a generally horizontal surface such as a bed and adjacent gurney comPrising: a thin flexible sheet of material adapted to be disposed over said generally horizontal surface; said sheet having a first surface characterized by a low coefficient of friction between said first surface in contact with itself; and a second surface on the opposite side of said sheet from said first surface, said second surface characterized by a coefficient of friction with said generally horizontal surface which is higher than that between said first surface in contact with itself; said sheet adapted initially to be disposed over those portions of said horizontal surface occupied by said patient before and to be occupied during and after his being conveyed with at least one portion of said sheet doubled back over and upon said sheet a distance of at least approximately the width of said patient; said doubled back portion being over that portion of said horizontal surface occupied by said patient before he is conveyed with said first surface on the inside of said doubled back portion whereby the portion of said sheet forming the top of said doubled back portion with said patient thereon can be easily slid across the bottom of said doubled back portion with the effort of an attendant.
Claim 3
Dependent Claim
44 words
The patient conveyor of claim 1 further comprising grasping means placed in said sheet and adapted to allow said attendant to convey said patient on the portion of said sheet forming the top of the fold by exerting a pull on said grasping means.
Claim 4
Dependent Claim
31 words
The patient conveyor of claim 1 wherein said thin flexible sheet of material is formed in a band adapted to be folded at a selected point and placed beneath said patient.
Claim 5
Dependent Claim
48 words
The patient conveyor of claim 1 wherein said generally horizontal surface further comprises: an immovable portion whereon said patient is normally contained at rest; and a movable portion for receiving said patient from said immovable portion on said conveyor and for moving said patient to a different location.
Claim 6
Dependent Claim
39 words
The patient conveyor of claim 1 further comprising: coating adhering to said sheet and forming one of said surface friction characteristics; and a material selected for said sheet possessing a surface having the other of said surface friction characteristics.
Claim 7
Dependent Claim
20 words
The patient conveyor of claim 5 wherein: said coating further comprises a polyurethane; and said sheet material further comprises nylon.
Claim 8
Independent Claim
184 words
A method of manually conveying patients along a generally horizontal surface using flexible sheet material having a first surface with low coefficients of friction between it and itself relative to the coefficients of friction between the other surface and said horizontal surface comprising: laying a connected double layer of said sheet material over said horizontal surfaces, said double layer having said low friction surface on the inside and having at least the bottom layer of said double layer extending over said horizontal surface in the direction said patient is to be conveyed a distance he is to be conveyed; placing the connected portion of said double layer between the patient and the generally horizontal surface supporting the patient; placing the extended portion of the bottom layer over the portion of the horizontal surface to which the patient is to be conveyed; and forcing said top layer with the patient thereon to slide across the bottom layer in the direction of the portion of the surface to which the patient is to be conveyed until the patient is over that portion of the horizontal surface.
Claim 9
Independent Claim
184 words
A method of manually conveying patients along a generally horizontal surface using flexible sheet material having a first surface with low coefficients of friction between it and itself relative to the coefficients of friction between the other surface and said horizontal surface comprising: laying a connected double layer of said sheet material over said horizontal surfaces, said double layer having said low friction surface on the inside and having at least the bottom layer of said double layer extending over said horizontal surface in the direction said patient is to be conveyed a distance he is to be conveyed; placing the connected portion of said double layer between the patient and the generally horizontal surface supporting the patient; placing the extended portion of the bottom layer over the portion of the horizontal surface to which the patient is to be conveyed; and forcing said top layer with the patient thereon to slide across the bottom layer in the direction of the portion of the surface to which the patient is to be conveyed until the patient is over that portion of the horizontal surface.
Claim 10
Dependent Claim
57 words
The method of conveying patients of claim 7 further comprising the step of conveying the patient away from the portion of the horizontal surface to which he was conveyed by forcing the top thickness with the patient thereon to slide over the bottom thickness in a direction opposite from the direction in which said patient was conveyed.
Claim 11
Dependent Claim
30 words
The patient conveyor of claim 3 and including an additional sheet of thin flexible material firmly attached to said ouTside surface of said band by means of a longitudinal seam.
Claim 12
Dependent Claim
36 words
The patient conveyor of claim 9 wherein said seam is located at approximately the middle of said additional sheet, thus dividing said additional sheet into two approximately equal portions extending on opposite sides of said seam.
Claim 13
Dependent Claim
105 words
A patient conveyor for use in transferring a patient across a generally horizontal surface such as a bed and adjacent gurney comprising: a thin flexible sheet of material formed in a continuous band adapted to be disposed over said generally horizontal surface with the opposed areas of the inner surface of said band in rubbing contact while supporting said patient; said band having said inner surface characterized by a low coefficient of friction in contact with itself; and an outer surface characterized by a coefficient of friction with said generally horizontal surface which is higher than that of said inner surface in contact with itself.
Claim 14
Dependent Claim
105 words
A patient conveyor for use in transferring a patient across a generally horizontal surface such as a bed and adjacent gurney comprising: a thin flexible sheet of material formed in a continuous band adapted to be disposed over said generally horizontal surface with the opposed areas of the inner surface of said band in rubbing contact while supporting said patient; said band having said inner surface characterized by a low coefficient of friction in contact with itself; and an outer surface characterized by a coefficient of friction with said generally horizontal surface which is higher than that of said inner surface in contact with itself.
Claim 15
Dependent Claim
56 words
A patient conveyor according to claim 11 and including an additional sheet of thin flexible material firmly attached along said outside surface of said continuous band by means of a longitudinal seam which divides said sheet into two opposite portions the length of the additional sheet being approximately the same as that of said continuous band.
Claim 16
Dependent Claim
23 words
A patient conveyor according to claim 12 wherein said band is attached to said surface along a central line opposed to said seam.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |