US4416281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical cushion for cooling an organ
Assignee: Guardline Disposables Ltd
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Filing: 1981-05-26
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Granted: 1983-11-22
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Expires: 2001-05-26
Abstract
Abstract A cushion for cooling an organ of the body during surgery. The cushion is flexible and of open form to allow cooling fluid to flow into it and out of it. A flexible tube extends from the cushion for draining off cooling fluid from the cushion and regions adjacent thereto.
Inventors
- 👤 Albert A. Cooper
- 👤 Mohamed El-Rayes
- 👤 Alan K. Yates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:38
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/10; A61F2007/0001; A61F2007/0054; A61F2007/0056; A61F2007/0059; A61F2007/0063; A61F2007/101
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
86 words
A surgical cushion comprising a layer of flexible, open-form knitted plastics filament mesh, a further layer of flexible material secure with the first-mentioned layer, a flexible tube, a proximal end portion of said flexible tube which is secure with and extends between said two layers, and at least one hole-defining part of said tube defining a hole of the tube at a position between said layers, whereby cooling fluid in regions within and near to the cushion when it is in use may be drawn off.
Claim 2
Dependent Claim
86 words
A surgical cushion comprising a layer of flexible, open-form knitted plastics filament mesh, a further layer of flexible material secure with the first-mentioned layer, a flexible tube, a proximal end portion of said flexible tube which is secure with and extends between said two layers, and at least one hole-defining part of said tube defining a hole of the tube at a position between said layers, whereby cooling fluid in regions within and near to the cushion when it is in use may be drawn off.
Claim 3
Dependent Claim
12 words
A surgical cushion according to claim 1, wherein the mesh comprises spun-nylon.
Claim 4
Dependent Claim
84 words
A surgical cushion comprising a layer of flexible, open-form material, a layer of flexible lint-free nylon backing secure with the first-mentioned layer, a flexible tube, a proximal end portion of said flexible tube which is secure with and extends between said two layers, and at least one hole-defining part of said tube defining a hole of the tube at a position between said layers, whereby cooling fluid in regions within and near to the cusion when it is in use may be drawn off.
Claim 5
Dependent Claim
84 words
A surgical cushion comprising a layer of flexible, open-form material, a layer of flexible lint-free nylon backing secure with the first-mentioned layer, a flexible tube, a proximal end portion of said flexible tube which is secure with and extends between said two layers, and at least one hole-defining part of said tube defining a hole of the tube at a position between said layers, whereby cooling fluid in regions within and near to the cusion when it is in use may be drawn off.
Claim 6
Dependent Claim
17 words
A surgical cushion according to claim 3, wherein the first-mentioned layer comprises a knitted plastics filament mesh.
Claim 7
Dependent Claim
12 words
A surgical cushion according to claim 4, wherein the mesh comprises spun-nylon.
Claim 8
Dependent Claim
87 words
A surgical cushion comprising a layer of flexible, open-form knitted plastics filament mesh, a layer of flexible lint-free free nylon backing secure with the first-mentioned layer, a flexible tube, a proximal end portion of said flexible tube which is secure with and extends between said two layers, and at least one hole-defining part of said tube defining a hole of the tube at a position between said layers, whereby cooling fluid in regions within and nearto the cushion when it is in use may be drawn off.
Claim 9
Dependent Claim
87 words
A surgical cushion comprising a layer of flexible, open-form knitted plastics filament mesh, a layer of flexible lint-free free nylon backing secure with the first-mentioned layer, a flexible tube, a proximal end portion of said flexible tube which is secure with and extends between said two layers, and at least one hole-defining part of said tube defining a hole of the tube at a position between said layers, whereby cooling fluid in regions within and nearto the cushion when it is in use may be drawn off.
Claim 10
Dependent Claim
12 words
A surgical cushion according to claim 6, wherein the mesh comprises spun-nylon.
Claim 11
Dependent Claim
85 words
A surgical cushion comprising a layer of flexible, open-form knitted spun-nylon filament mesh, a flexible lint-free nylon backing layer secure with the first-mentioned layer, a flexible tube, a proximal end portion of said flexible tube which is secure with and extends between said two layers, and at least one hole-defining part of said tube defining a hole of the tube at a position between said layers, whereby cooling fluid in regions within and nearto the cushion when it is in use may be drawn off.
Claim 12
Dependent Claim
85 words
A surgical cushion comprising a layer of flexible, open-form knitted spun-nylon filament mesh, a flexible lint-free nylon backing layer secure with the first-mentioned layer, a flexible tube, a proximal end portion of said flexible tube which is secure with and extends between said two layers, and at least one hole-defining part of said tube defining a hole of the tube at a position between said layers, whereby cooling fluid in regions within and nearto the cushion when it is in use may be drawn off.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-21 | 1987-05-23 | 1987-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-21 | 1991-05-23 | 1991-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-21 | 1995-05-23 | 1995-11-22 | $7700.00 | Window Closed / Lapsed |