US3836061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suturing instrument anvil bushing part
Assignee: Canadian Patents and Development Ltd
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Filing: 1973-08-29
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Granted: 1974-09-17
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Expires: 1993-08-29
Abstract
Abstract A suturing instrument anvil bushing part which is economical to manufacture and so disposable after use, comprises a semicylindrical, plastic body having a suturing tool engaging flange at the rear end and metal anvil retaining groove in the front face with an undulating base for locating a similarly shaped anvil, pressed therein, and retained by inturned, retaining lips on the anvil retaining groove sides. The body is preferably of a phenylene oxide based resin whilst the anvil is preferably of stainless steel.
Inventors
- 👤 R Grunwald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:52
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/11; A61B17/115; A61B17/068; A61B17/072; A61B2017/07214; A61B2017/07257; A61B2017/07264
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
121 words
A suturinG instrument anvil bushing part, comprising a semicylindrical non-toxic, plastic bushing body having an outwardly extending suturing tool gripping and locating flange integral with the rear end of said body, and an anvil receiving slot extending around a leading end face of the said bushing body, with the base of the anvil receiving slot formed undulatory in a lengthwise direction, inturned, anvil retaining lips in the anvil receiving slot, and a metal anvil with a corresponding undulatory base to the base of the anvil receiving slot, received in the anvil receiving slot and retained therein by the anvil retaining lips and circumferentially located by the undulatory base of the anvil coinciding with the undulatory base of the anvil receiving slot.
Claim 2
Dependent Claim
121 words
A suturinG instrument anvil bushing part, comprising a semicylindrical non-toxic, plastic bushing body having an outwardly extending suturing tool gripping and locating flange integral with the rear end of said body, and an anvil receiving slot extending around a leading end face of the said bushing body, with the base of the anvil receiving slot formed undulatory in a lengthwise direction, inturned, anvil retaining lips in the anvil receiving slot, and a metal anvil with a corresponding undulatory base to the base of the anvil receiving slot, received in the anvil receiving slot and retained therein by the anvil retaining lips and circumferentially located by the undulatory base of the anvil coinciding with the undulatory base of the anvil receiving slot.
Claim 3
Dependent Claim
59 words
An anvil bushing part according to claim 1, wherein the undersides of the anvil retaining lips are inclined inwardly towards the sides of the anvil retaining slot, the outer edges of the anvil have chamfers which locate the anvil beneath the said undersides of the anvil retaining lips, with a space above the anvil in the anvil retaining slot.
Claim 4
Dependent Claim
24 words
An anvil bushing part according to claim 1, wherein the sides of the anvil retaining slot are stepped, and the anvil is correspondingly shaped.
Claim 5
Dependent Claim
28 words
An anvil bushing according to claim 1, wherein the anvil bushing body is formed from a non-toxic phenylene oxide based resin which may be sterilized by gamma irradiation.
Claim 6
Dependent Claim
15 words
An anvil bushing part according to claim 1 wherein the anvil is of stainless steel.
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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |