Patent US5551622A successfully refreshed from Google Patents.
US5551622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical stapler
Assignee: Individual
•
Filing: 1994-07-13
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Granted: 1996-09-03
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Expires: 2014-07-13
Abstract
Abstract A surgical stapler for applying multiple rows of surgical staples to biological tissue includes a pair of opposed jaws adapted to receive tissue therebetween, a plurality of surgical staples and staple-forming anvils carried by each jaw in alignment with the staples and staple-forming anvils carried by the other jaw, and a mechanism for driving the tissue penetrating legs of the staples through the biological tissue and bending the legs against opposed anvils on the opposite side of the tissue to produce rows of finished surgical staples on both sides of the tissue being ligated. The staples and anvils in each of the jaws are arranged in spaced, parallel rows, with each row of staples being adjacent a row of anvils and adjacent rows of staples and anvils being either longitudinally staggered or aligned. Further, the staples and anvils are carried either alone or in combination in a pair of cartridges held by the opposed jaws, which are either linear or curved depending on the procedure to be performed with the surgical stapler.
Inventors
- 👤 Inbae Yoon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:26
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/068; A61B17/072; A61B17/07207; A61B17/07292; A61B17/32; A61B17/320016; A61B2017/07214; A61B2017/07221; A61B2017/07228; A61B2017/07271; A61B17/3209; A61B17/3211; A61B2017/32113
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
74 words
A surgical stapler comprising a pair of opposed jaws adapted to receive tissue therebetween; a plurality of staples and staple-forming anvils carried by each of said jaws, said staples each having two or more tissue penetrating legs aligned with one of the anvils carried by the opposed jaw; and operating means, coupled with said jaws, for driving said tissue penetrating legs of said staples through the tissue and bending said legs against opposed anvils.
Claim 2
Dependent Claim
74 words
A surgical stapler comprising a pair of opposed jaws adapted to receive tissue therebetween; a plurality of staples and staple-forming anvils carried by each of said jaws, said staples each having two or more tissue penetrating legs aligned with one of the anvils carried by the opposed jaw; and operating means, coupled with said jaws, for driving said tissue penetrating legs of said staples through the tissue and bending said legs against opposed anvils.
Claim 3
Dependent Claim
32 words
A surgical stapler as recited in claim 1 and further comprising at least two rows of spaced staples and at least two rows of spaced anvils carried by each of said jaws.
Claim 4
Dependent Claim
28 words
A surgical stapler as recited in claim 2 wherein said rows of staples and anvils are parallel and each row of staples is adjacent a row of anvils.
Claim 5
Dependent Claim
21 words
A surgical stapler as recited in claim 3 wherein said staples are aligned with spaces between anvils in an adjacent row.
Claim 6
Dependent Claim
19 words
A surgical stapler as recited in claim 3 wherein said staples are aligned with anvils in an adjacent row.
Claim 7
Dependent Claim
31 words
A surgical stapler as recited in claim 1 and further comprising a pair of cartridges carried by said jaws in opposed relation to support said plurality of staples and staple-forming anvils.
Claim 8
Dependent Claim
56 words
A surgical stapler as recited in claim 6 wherein each cartridge includes a cartridge body having a tissue engaging surface, and a base plate having a plurality of staple driving protrusions and anvils aligned with openings defined in said tissue engaging surface, said plurality of staples being carried within openings aligned with said staple driving protrusions.
Claim 9
Dependent Claim
64 words
A surgical stapler as recited in claim 6 wherein each cartridge includes a cartridge body having a tissue engaging surface and defining an elongate cavity therein, and a plurality of staple drivers frictionally held within openings defined between said tissue engaging surface and said elongate cavity, said plurality of staples being carried within said openings between said staple drivers and said tissue engaging surface.
Claim 10
Dependent Claim
48 words
A surgical stapler as recited in claim 8 wherein said jaws are fixed to a handle and said means for driving said staples into said anvils includes at least one pair of pusher bars translatably supported by said handle to slide within said elongate cavities in said cartridges.
Claim 11
Dependent Claim
38 words
A surgical stapler as recited in claim 9 wherein said staple drivers protrude from said openings in said cartridge body into said elongate cavity and have slanted surfaces to slidably contact tapered distal ends of said pusher bars.
Claim 12
Dependent Claim
30 words
A surgical stapler as recited in claim 10 wherein said plurality of anvils are defined on tissue engaging surfaces of each staple cartridge opposite openings formed in the opposed cartridge.
Claim 13
Dependent Claim
44 words
A surgical stapler as recited in claim 11 and further comprising a blade carried by said pusher bars proximally of said tapered distal ends and within a central groove defined in each cartridge between said elongate cavity and tissue engaging surface of each cartridge.
Claim 14
Dependent Claim
13 words
A surgical stapler as recited in claim 1 wherein said jaws are curved.
Claim 15
Dependent Claim
44 words
A surgical stapler as recited in claim 1 wherein said means for driving said staples into said anvils includes a pair of pivoted elongate legs, each leg having a proximal end with a handle and a distal end connected with one of said jaws.
Claim 16
Dependent Claim
32 words
A surgical stapler as recited in claim 14 and further comprising a gap spacer located on one of said elongate legs facing the other elongate leg to set a minimum gap therebetween.
Claim 17
Dependent Claim
27 words
A surgical stapler as recited in claim 14 and further comprising a leaf spring disposed between said elongate legs to bias said legs away from one another.
Claim 18
Dependent Claim
17 words
A surgical stapler as recited in claim 6 wherein said cartridges are made of a compressible material.
References Cited (Backward Citations)
US2638901A
Cited
US3080564A
Cited
US3166072A
Cited
US3490675A
Cited
US3589589A
Cited
US3882854A
Cited
US4064881A
Cited
US4198982A
Cited
US4354628A
Cited
US4624257A
Cited
US4523592A
Cited
US4548202A
Cited
US4633874A
Cited
US4821719A
Cited
US4749114A
Cited
US5158567A
Cited
US4930674A
Cited
US5040715B1
Cited
US5040715A
Cited
US5049153A
Cited
US5156609A
Cited
US5222961A
Cited
US5015249A
Cited
US5074454A
Cited
US5156614A
Cited
US5366458A
Cited
US5171253A
Cited
US5242457A
Cited
US5258008A
Cited
US5330486A
Cited
US5376095A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-09-03 | 2000-03-04 | 2000-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-09-03 | 2004-03-04 | 2004-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-09-03 | 2008-03-04 | 2008-09-03 | $7700.00 | Window Closed / Lapsed |