Patent US3592377A successfully refreshed from Google Patents.
US3592377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hemostat unit
Assignee: United States Surgical Corp
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Filing: 1969-10-24
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Granted: 1971-07-13
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Expires: 1989-10-24
Abstract
Abstract A hemostat unit comprising, in combination, a hemostat and a staple carrying and ejecting system for clamping a fluid-carrying artery and stapling same so as to seal off the flow of fluid. A plurality of staples is positioned on respective threads of a screw, which screw is turned one revolution each time the unit is activated. A vertically oriented driver, slidably mounted in the forwardmost part of the stapling unit, serves to eject the staples one at a time and to force same against an anvil to shape the staples. The driver is moved in response to the movement of a rotatably mounted driver-activating member, which latter member is caused to pivot in response to the command of the operator.
Inventors
- 👤 David T Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:55
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/128
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
233 words
A staple attachment adapted for mounting on a clamping tool of the type having a pair of gripping jaws, the attachment comprising: an elongated cover member; staple carrying means in the form of a threaded screw mounted for rotation in said cover member, wherein the thread of said screw is adapted to carry a plurality of staples; cylindrical cam means fixedly attached to said staple carrying means for causing the screw of said staple carrying means to rotate about its axis; a support element fixedly mounted in said cover member, surrounding said staple carrying means and serving to provide a guide in which said staple carrying means can rotate; a driver element slidably attached to said support element and capable of forcing out of said support element a staple which is positioned for ejection, said driver element mounted on said support element to slide in a plane parallel to the plane of said staple; driver-activating means pivotally mounted in said cover member, associated with said driver element and adapted to move said driver element in the plane of said staple when pivoted; a control element associating with said driver-activating means and said cam means for simultaneously controlling the action of said driver-activating means and said cam means; anvil means integral with said cover member for clinching ejected staples in a predetermined shape; and means for mounting said staple attachment on said clamping tool.
Claim 2
Dependent Claim
233 words
A staple attachment adapted for mounting on a clamping tool of the type having a pair of gripping jaws, the attachment comprising: an elongated cover member; staple carrying means in the form of a threaded screw mounted for rotation in said cover member, wherein the thread of said screw is adapted to carry a plurality of staples; cylindrical cam means fixedly attached to said staple carrying means for causing the screw of said staple carrying means to rotate about its axis; a support element fixedly mounted in said cover member, surrounding said staple carrying means and serving to provide a guide in which said staple carrying means can rotate; a driver element slidably attached to said support element and capable of forcing out of said support element a staple which is positioned for ejection, said driver element mounted on said support element to slide in a plane parallel to the plane of said staple; driver-activating means pivotally mounted in said cover member, associated with said driver element and adapted to move said driver element in the plane of said staple when pivoted; a control element associating with said driver-activating means and said cam means for simultaneously controlling the action of said driver-activating means and said cam means; anvil means integral with said cover member for clinching ejected staples in a predetermined shape; and means for mounting said staple attachment on said clamping tool.
Claim 3
Dependent Claim
56 words
The invention as set forth in claim 1, wherein said support element is fitted with a pair of guide flanges; wherein said driver element has a front face, a rear face and a connecting member; and wherein said driver element is slidably mounted so that said flanges are sandwiched between said front and said rear faces.
Claim 4
Dependent Claim
60 words
The invention of claim 1, wherein activation of said control element activates said driver-activating means and said cam means, wherein said driver-activating means causes the ejection of a staple upon the activation of said control element and wherein said driver-activating means returns the driver element to its readiness position upon the activation of said control element, acting through driver-retracting means.
Claim 5
Dependent Claim
30 words
The invention as recited in claim 1, and further comprising a camming pin fixedly attached to said control element and extending into a series of grooves in said cam means.
Claim 6
Dependent Claim
40 words
The invention as reciTed in claim 4, wherein said control element can be stroked in a forward or rearward direction and wherein said stroking causes said cam to rotate integral with said staple-carrying means, thereby advancing said plurality of staples.
Claim 7
Dependent Claim
48 words
The invention as recited in claim 5, wherein said series of grooves are of a configuration so that when said control element is stroked in a forward direction, said staple carrying means is caused to rotate until a single staple is advanced into a position ready for ejection.
Claim 8
Dependent Claim
42 words
The invention as recited in claim 1, wherein said control element is an elongated member which slides against an inside wall of a housing and which forces said driver-activating means to pivot in response to the forward stroke of said control element.
Claim 9
Dependent Claim
74 words
The invention as recited in claim 7, wherein said attachment has two basic positions with respect to said clamping tool, the first being one of readiness, wherein said clamping tool can function normally, and the second being adapted for stapling, wherein the clamping tool is in engagement with the object to be stapled, said first position being rearward of the gripping jaws of said tool and said second position being adjacent said gripping jaws.
Claim 10
Dependent Claim
41 words
The invention as recited in claim 1, wherein the pitch of the thread of said staple carrying means is such that a single staple is advanced into a position ready for ejection each time said control element undergoes a forward stroke.
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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |