Patent US4662555A successfully refreshed from Google Patents.
US4662555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical stapler
Assignee: Pilling Weck Inc
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Filing: 1986-03-11
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Granted: 1987-05-05
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Expires: 2006-03-11
Abstract
Abstract A surgical stapler, preferably in a single use disposable form, comprises a combination of a staple feeding mechanism and a staple forming mechanism secured in a frame and an actuating trigger functionally connected to both the staple feeding mechanism and the staple forming mechanism, wherein the staple feeding mechanism includes a rail to guide contained staples serially to a staple forming position and a shuttle in association with the rail as a movable staple retaining cover, the shuttle being functionally connected to the trigger for movement in the same direction and the same time as the staples. This structure provides a reliable surgical stapler in which staples are not likely to jam the staple feeding mechanism.
Inventors
- 👤 Curtis W. Thornton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:27
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/068; A61B17/0682; A61B17/0684
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
92 words
A surgical stapler comprising in combination a staple feeding mechanism and a staple forming mechanism both secured in a frame and an actuating trigger functionally connected to both said staple feeding mechanism and said staple forming mechanism, wherein said staple feeding mechanism, includes a rail to guide contained staples serially to said staple forming mechanism and a shuttle in association with said rail as a movable staple retaining cover, said shuttle being functionally connected to said trigger for movement in a direction and at a time coincident with movement of said staples.
Claim 2
Dependent Claim
92 words
A surgical stapler comprising in combination a staple feeding mechanism and a staple forming mechanism both secured in a frame and an actuating trigger functionally connected to both said staple feeding mechanism and said staple forming mechanism, wherein said staple feeding mechanism, includes a rail to guide contained staples serially to said staple forming mechanism and a shuttle in association with said rail as a movable staple retaining cover, said shuttle being functionally connected to said trigger for movement in a direction and at a time coincident with movement of said staples.
Claim 3
Dependent Claim
38 words
The surgical stapler of claim 1 in which said staple forming mechanism includes a movable anvil functionally connected to said trigger in a manner to tilt out of staple path as trigger is opened following a staple forming.
Claim 4
Dependent Claim
135 words
In a surgical stapler comprising means to deliver a surgical staple to a site of implantation and means to actuate deformation means to deform the staple into a tissue retaining configuration at the site of implantation wherein the staple delivery means includes a rail to guide the travel of the staples, a biasing means to move the staples along the rail, and a retaining means to retain the staples on the rail, the improvement which comprises a shuttle as the retaining means, said shuttle being arranged as a cover over said staples on said rail and linked to the actuating means in a manner that causes the shuttle to move with the staples in their incremental travel toward the site of implantation and return to starting position between each staple implantation operation of the stapler.
Claim 5
Dependent Claim
135 words
In a surgical stapler comprising means to deliver a surgical staple to a site of implantation and means to actuate deformation means to deform the staple into a tissue retaining configuration at the site of implantation wherein the staple delivery means includes a rail to guide the travel of the staples, a biasing means to move the staples along the rail, and a retaining means to retain the staples on the rail, the improvement which comprises a shuttle as the retaining means, said shuttle being arranged as a cover over said staples on said rail and linked to the actuating means in a manner that causes the shuttle to move with the staples in their incremental travel toward the site of implantation and return to starting position between each staple implantation operation of the stapler.
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) | 1990-05-04 | 1990-11-03 | 1991-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-04 | 1994-11-03 | 1995-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-04 | 1998-11-03 | 1999-05-05 | $7700.00 | Window Closed / Lapsed |