Patent US3604561A successfully refreshed from Google Patents.
US3604561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple stapler cartridge
Assignee: Codman and Shurtleff Inc
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Filing: 1969-08-07
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Granted: 1971-09-14
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Expires: 1989-08-07
Abstract
Abstract A miniature stapler useful in the surgical repair of tissue fastens at each actuation a single miniature staple and is constructed with two movable arms, the free ends of which function as a driver and anvil. A cartridge containing a series of staples is removably mounted between the two movable arms in such a position that the first staple in the series is pushed out of the cartridge by the driver and clinched against the anvil when the two arms are moved toward one another. After application of the staple, when the two arms move away from each other, a pusher within the cartridge operates to move the series of staples forward so that the next successive staple in the series will be in position to be applied when the movable arms again approach one another.
Inventors
- 👤 Rudolph F Mallina
- 👤 Harry G Reimels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:04
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/068; A61B17/0682; A61B17/0686
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
229 words
A cartridge having a centrally located channel extending from one end thereof and communicating with two opposite straight parallel shoulders at the forward end thereof; said parallel shoulders being perpendicular to the longitudinal axis of said cartridge and the top surface of said channel; two longitudinal grooves being located at opposite sides of said cartridge and dividing said cartridge in a plane perpendicular to said shoulders; said cartridge containing a series of miniature staples, each having two legs and a crown connecting said lEgs; said staples being in parallel alignment within said channel, the first staple in said series being in contact with said shoulders and being suspended at the forward end of said channel with the legs of said first staple in frictional contact with the side surfaces of said channel, the crown of all other staples in said series being in frictional contact with said top surface of said channel and the free ends of each staple pointing in a direction perpendicular to said longitudinal axis of said cartridge; and a U-shaped pusher having a cross section that conforms to the cross section of said staples and said channel; said pusher being slidably movable within said channel in the direction of said longitudinal axis of said cartridge to sequentially advance said staples toward said forward end of said cartridge and against the wall of said parallel shoulders.
Claim 2
Dependent Claim
229 words
A cartridge having a centrally located channel extending from one end thereof and communicating with two opposite straight parallel shoulders at the forward end thereof; said parallel shoulders being perpendicular to the longitudinal axis of said cartridge and the top surface of said channel; two longitudinal grooves being located at opposite sides of said cartridge and dividing said cartridge in a plane perpendicular to said shoulders; said cartridge containing a series of miniature staples, each having two legs and a crown connecting said lEgs; said staples being in parallel alignment within said channel, the first staple in said series being in contact with said shoulders and being suspended at the forward end of said channel with the legs of said first staple in frictional contact with the side surfaces of said channel, the crown of all other staples in said series being in frictional contact with said top surface of said channel and the free ends of each staple pointing in a direction perpendicular to said longitudinal axis of said cartridge; and a U-shaped pusher having a cross section that conforms to the cross section of said staples and said channel; said pusher being slidably movable within said channel in the direction of said longitudinal axis of said cartridge to sequentially advance said staples toward said forward end of said cartridge and against the wall of said parallel shoulders.
Claim 3
Dependent Claim
20 words
The cartridge of claim 1, wherein said longitudinal grooves terminate at the forward end of said cartridge in a shoulder.
Claim 4
Dependent Claim
20 words
The cartridge of claim 1, wherein said opposite sides of said cartridge that extend beyond said longitudinal grooves are serrated.
Claim 5
Dependent Claim
54 words
The cartridge of claim 1, characterized by a projection on the forward end thereof that extends above said top surface of said cartridge, the forward edge of said projection being displaced from the inner walls of said opposite straight parallel shoulders a distance equal to the thickness of a staple and in alignment therewith.
Claim 6
Dependent Claim
34 words
The cartridge of claim 4, characterized by an integral center piece at the forward end of said channel, the forward surface of which lies in the plane of the forward edge of said projection.
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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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |