US3576288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical instrument
Assignee: United States Surgical Corp
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Filing: 1968-10-10
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Granted: 1971-04-27
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Expires: 1988-10-10
Abstract
Abstract There is disclosed an attachment designed to be carried by a clamping tool such as an hemostat for providing said tool with the capability of sealing the end of a fluid carrying vessel such as a blood vessel by means of staples. A staple cartridge is easily secured to an hemostat; and while the hemostat temporarily clamps and seals the end of a blood vessel, staples are smoothly ejected thereby perfecting a more permanent seal and permitting the removal of the hemostat.
Inventors
- 👤 David T Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:25
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/128
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
219 words
A staple attachment adapted for mounting on a clamping tool of the type having a pair of gripping jaws and comprising: staple-carrying means in the form of a threaded screw wherein the thread of said screw is adapted to carry a plurality of staples; cylindrical cam means fixedly attached to said staple-carrying means; a staple housing surrounding said staple-carrying means and serving to provide a guide in which said staple-carrying means can rotate; a staple driver pivotally attached to said staple housing and capable of forcing out of said staple housing a staple which is positioned for ejection; a cam housing in the form of a solid block of material having therein a cylindrical bore adapted to receive said cylindrical cam, said cam housing serving to provide a guide in which said cylindrical cam can simultaneously rotate about its axis and slide in the direction of its axis; cam pin means associated with said cylindrical cam means and said cam housing for rotating said cylindrical cam means in response to the axial sliding of said cylindrical cam means; staple ejecting means pivotally attached to said cam housing for causing said staple driver to rotate about its pivot point; and a bracket adapted to be slideably attached to said clamping tool for supporting said staple housing and said staple driver.
Claim 2
Dependent Claim
219 words
A staple attachment adapted for mounting on a clamping tool of the type having a pair of gripping jaws and comprising: staple-carrying means in the form of a threaded screw wherein the thread of said screw is adapted to carry a plurality of staples; cylindrical cam means fixedly attached to said staple-carrying means; a staple housing surrounding said staple-carrying means and serving to provide a guide in which said staple-carrying means can rotate; a staple driver pivotally attached to said staple housing and capable of forcing out of said staple housing a staple which is positioned for ejection; a cam housing in the form of a solid block of material having therein a cylindrical bore adapted to receive said cylindrical cam, said cam housing serving to provide a guide in which said cylindrical cam can simultaneously rotate about its axis and slide in the direction of its axis; cam pin means associated with said cylindrical cam means and said cam housing for rotating said cylindrical cam means in response to the axial sliding of said cylindrical cam means; staple ejecting means pivotally attached to said cam housing for causing said staple driver to rotate about its pivot point; and a bracket adapted to be slideably attached to said clamping tool for supporting said staple housing and said staple driver.
Claim 3
Dependent Claim
26 words
The invention as set forth in claim 1 wherein a portion of said bracket forms an anvil adapted to receive staples ejected from said staple housing.
Claim 4
Dependent Claim
39 words
The invention as recited in claim 2 wherein said staple driver is pivotally attached to said staple housing by a pin and wherein said pin is attached to said bracket securing said driver and said housing to said bracket.
Claim 5
Dependent Claim
43 words
The invention as recited in claim 3 wherein said cam pin means is fixedly attached to said cam housing and extends into the bore thereof and wherein said cylindrical cam has set thereinto a series of grooves positively engaged by said cam pin.
Claim 6
Dependent Claim
54 words
The invention as recited in claim 4 wherein said cam housing and its associated staple-ejecting means are mounted on said bracket for stroking in a forward and rearward direction and wherein said stroking causes said cam housing and said staple-ejecting means to move relative to said staple housing, said staple driver and said bracket.
Claim 7
Dependent Claim
65 words
The invention as recited in claim 5 wherein said staple-ejecting means is a wedge which slides against an inside wall of said bracket and which forces said staple driver to rotate about its axis only after said single staple is in a position ready for ejection, said wedge causing rotation in said staple driver as a result of the forward stroke of said cam housing.
Claim 8
Dependent Claim
77 words
The invention as recited in claim 6 wherein said bracket 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 one of engagement with said gripping jaws.
Claim 9
Dependent Claim
61 words
The invention as recited in claim 7 wherein said bracket has a first flange portion for engaging one of the handles of said hemostat, a second flange portion for engaging two walls of said hemostat near its gripping jaws and a third flange portion, intermediate said first and said second flange portions, for engaging an additional two walls of said hemostat.
Claim 10
Dependent Claim
34 words
The invention as set forth in claim 8 and further comprising resilient means associated with said bracket for insuring a secure fit between said bracket and said clamping tool at the handle portion thereof.
Claim 11
Dependent Claim
40 words
The invention as recited in claim 5 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 cam housing undergoes a forward stroke.
Claim 12
Dependent Claim
23 words
The invention are recited in claim 6 wherein said staple housing is of a length substantially equal to that of said staple-carrying means.
Claim 13
Dependent Claim
23 words
The invention as recited in claim 11 wherein said staple hammer is of a length substantially equal to that of said staple housing.
Claim 14
Dependent Claim
93 words
An attachment adapted for mounting on a clamping tool such as an hemostat which provides said clamping tool with the additional capability of stapling closed the end of the object being clamped, and comprising: stapling means for closing the end of said object being clamped by said clamping tool, said stapling means comprising screw means for carrying a plurality of staples, means for rotating said screw means thereby advancing said staples, and means for singly ejecting said staples; and means for detachably mounting said stapling means on the body of said clamping tool.
Claim 15
Dependent Claim
93 words
An attachment adapted for mounting on a clamping tool such as an hemostat which provides said clamping tool with the additional capability of stapling closed the end of the object being clamped, and comprising: stapling means for closing the end of said object being clamped by said clamping tool, said stapling means comprising screw means for carrying a plurality of staples, means for rotating said screw means thereby advancing said staples, and means for singly ejecting said staples; and means for detachably mounting said stapling means on the body of said clamping tool.
Claim 16
Dependent Claim
19 words
The invention as recited in claim 13 wherein said stapling means and said mounting means form an integral unit.
Claim 17
Dependent Claim
27 words
The attachment as set forth in claim 14 wherein said mounting means is such that said attachment is slidably mounted on the body of said clamping tool.
References Cited (Backward Citations)
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Cited
US2301622A
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US2853074A
Cited
US2874384A
Cited
US3082426A
Cited
US3269631A
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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) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |