Patent EP0203375A2 successfully refreshed from Google Patents.
EP0203375A2
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EP
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Apparatus for storing and applying surgical staples
Assignee: Edward Weck Inc
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Filing: 1986-04-23
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Granted: —
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Expires: 2006-04-23
Abstract
Abstract A method and apparatus for storing and automatically dispensing and applying surgical staples in serial fashion includes a pistol-like tool having means for storing a large plurality of staples in parallel, stacked column fashion aligned along the longitudinal (barrel) axis of the tool. A form tool and an anvil tool extend longitudinally parallel to the axis, and are advanced in synchronism by actuation of a trigger lever. The form tool includes a pair of arms which impinge upon and rotate the legs of the- staple about theweb portion thereof to dispose the staple in a points-first dispensing orientation. The form tool advancesthe staple to the distal dispensing end of the tool, where it drives the staple into a portion of the anvil and crimps the staple thereabout. Release of the trigger causes an elevator member to separate the next distal staple in the column from its column alignment into position to be engaged by the anvil tool and form tool at the start of the subsequent dispensing cycle. A trigger actuation mechanism prevents release of the trigger lever until the dispensed staple is completely crimped in the tissue.
Inventors
- 👤 Rudolph Peters
- 👤 Ronald L. Peters
- 👤 William Taylor
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 23:14
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/068; A61B17/0682; A61B17/0684
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
73 words
A surgical stapling device, including means for storing a plurality of surgical staples in a parallel, stacked column extending along a longitudinal axis, means for separating an endmost staple of said stacked column therefrom, means for engaging legs of said endmost staple in torque applying fashion for rotating said endmost staple to a points-first orientation along said longitudinal axis, and means for crimping said to secure said rotated staple at a surgical site.
Claim 2
Dependent Claim
73 words
A surgical stapling device, including means for storing a plurality of surgical staples in a parallel, stacked column extending along a longitudinal axis, means for separating an endmost staple of said stacked column therefrom, means for engaging legs of said endmost staple in torque applying fashion for rotating said endmost staple to a points-first orientation along said longitudinal axis, and means for crimping said to secure said rotated staple at a surgical site.
Claim 3
Dependent Claim
58 words
The surgical stapling device of Claim 1, wherein like web portions of said staples extend in a common plane, said means for separating said endmost staple includes means for translating said endmost staple transversely from said common plane to a feed path extending along said longitudinal axis, and said engaging and rotating means being in said feed path.
Claim 4
Dependent Claim
80 words
The surgical stapling device of Claim 1 or 2, wherein said engaging and rotating means comprises a dispensing means for rotating the endmost staple to a points-first orientation along said longitudinal axis and thereafter advancing and crimping the rotated staple, and elevator means for separating and shifting said endmost staple of said column out of axial alignment with said column to engagement with said dispensing means, said elevator means being operated by the advancement and retraction of said dispensing means.
Claim 5
Dependent Claim
91 words
The surgical stapling device of Claim 3, wherein said dispensing means includes a reciprocally translating form tool extending generally parallel to said axis and including first surface means for initially contacting the staple legs and rotating the separated staple, second surface means for thereafter contacting the staple web and translating the separated staple: further including an anvil tool extending generally parallel to said axis and adapted for reciprocal translation in concert therewith, said anvil tool including an anvil disposed to translate in advance of the staple web and to impinge thereupon.
Claim 6
Dependent Claim
39 words
The surgical stapling device of Claim 1, 2, 3 or 4, wherein said device includes a barrel portion extending generally along said longitudinal axis, and a handle extending from the proximal end of said barrel portion in pistol-like configuration.
Claim 7
Dependent Claim
44 words
The surgical stapling device of any one of claims 1 to 5, wherein said means for rotating includes form tool means extending longitudinally within said barrel portion and including portions adapted to engage the legs of said endmost staple in said torque applying fashion.
Claim 8
Dependent Claim
30 words
The surgical stapling device of Claim 6 wherein said means for storing includes a staple magazine extending longitudinally within said barrel portion and generally adjacent to said form tool means.
Claim 9
Dependent Claim
46 words
The surgical stapling device of Claim 7, further including a staple feed path extending from the distal end of said staple magazine to the distal end of said barrel portion, and means for translating said form tool means along said staple feed path in reciprocal fashion.
Claim 10
Dependent Claim
42 words
The surgical stapling device of Claim 8, wherein said form tool means includes a form tool extending longitudinally in said barrel portion, said form tool including end surface means for engaging, rotating, and thereafter translating said separated staple along said feed path.
Claim 11
Dependent Claim
65 words
The surgical stapling device of Claim 9, wherein each surgical staple includes a web portion and a pair of legs extending from opposed ends of said web portion, said end surface means of said form tool including a pair of arms extending distally therefrom and disposed to initially contact the legs of said separated staple and rotate said separated staple about the web portion thereof.
Claim 12
Dependent Claim
42 words
The surgical stapling device of Claim 10, wherein said end surface means of said form tool further includes driving surface means adapted to engage the web portion of said rotated staple and to urge said rotated staple distally along said feed path.
Claim 13
Dependent Claim
46 words
The surgical stapling device of Claim 11, further including anvil tool means extending longitudinally in said barrel portion and disposed generally adjacent and parallel to said form tool, said anvil tool means adapted for reciprocal translation in said barrel portion in concert with said form tool.
Claim 14
Dependent Claim
53 words
The surgical stapling device of Claim 12, wherein said anvil tool means includes a distal end portion with flange means extending therefrom, said flange means adapted to engage the web portion of said separated and rotated staple in distal opposition to the proximal position of said end surface means of said form tool.
Claim 15
Dependent Claim
22 words
The surgical stapling device of Claim 13, further including means for translating said form tool longitudinally and reciprocally along said barrel portion.
Claim 16
Dependent Claim
36 words
The surgical stapling device of Claim 14, further including linking means extending between said form tool and said anvil tool means for driving said anvil tool means longitudinally and reciprocally in concert with said form tool.
Claim 17
Dependent Claim
25 words
the surgical stapling device of Claim 15, wherein said linking means includes compression spring means extending between said form tool and said anvil tool means.
Claim 18
Dependent Claim
101 words
The surgical stapling device of Claim 16, further including means for crimping said separated and rotated staple, comprising said flange means engaging a medial portion of a distal surface of the web portion of said separated and rotated staple, said driving surfaces engaging opposed end portions of a proximal surface of the web portion of said separated and rotated staple, stop means for preventing distal translation of said anvil tool means at a predetermined position, and means for advancing said form tool distally past said predetermined position to cause said driving surfaces to crimp said web portion about said flange means.
Claim 19
Dependent Claim
23 words
The surgical stapling device of any of Claims 14 to 17, wherein said means for translating said form tool include trigger actuating means.
Claim 20
Dependent Claim
28 words
The surgical stapling device of Claim 18, wherein said trigger actuating means includes a trigger lever extending from said barrel portion in adjacent opposition to said handle portion.
Claim 21
Dependent Claim
18 words
The surgical stapling device of Claim 19, further including a trigger plate from which said trigger lever extends.
Claim 22
Dependent Claim
35 words
The surgical stapling device of Claim 20, wherein said trigger plate includes opposed ends and at least one pair of gliding knobs, each secured to one of said opposed ends in spaced apart, opposed relationship.
Claim 23
Dependent Claim
36 words
The surgical stapling device of Claim 21, further including a pair of guide channels in said device, each of said guide channels adapted to receive and secure one of said gliding knobs in freely translating fashion.
Claim 24
Dependent Claim
38 words
The surgical stapling device of Claim 22, wherein said guide channels are obliquely oriented within the same general plane, whereby translation of said gliding knobs in said guide channels causes rotational and translational movement of said trigger plate.'
Claim 25
Dependent Claim
23 words
The surgical stapling device of Claim 23, wherein one of said opposed ends of said trigger plate is disposed distally of the other.
Claim 26
Dependent Claim
46 words
The surgical stapling device of Claim 24, further including a driving block engaged with said gliding knob at said distal end of said trigger plate, said driving block disposed to be driven in reciprocal translational motion by movement of said trigger plate by said trigger lever.
Claim 27
Dependent Claim
35 words
The surgical stapling device of Claim 25, wherein said driving block includes means for engaging the proximal end of said form tool and driving said form tool in reciprocal translational motion along said longitudinal axis.
Claim 28
Dependent Claim
43 words
The surgical stapling device of any of Claims 5 to 26, wherein said barrel portion includes a proximal barrel portion fixed to said handle portion, and a distal barrel portion secured to said proximal barrel portion in rotatable fashion about said longitudinal axis.
Claim 29
Dependent Claim
63 words
The surgical stapling device of Claim 27, wherein said means for storing a plurality of surgical staples in a parallel, stacked column extending along a longitudinal axis, said means for separating the endmost staple to a point-first orientation along said longitudinal axis, and said means for crimping and securing the rotated staple are all disposed and secured in said distal, rotatable barrel portion.
Claim 30
Dependent Claim
31 words
The surgical stapling device of Claim 28 wherein said means for storing a plurality of surgical staples includes means for indicating the number of staples remaining in said parallel, stacked column.
Claim 31
Dependent Claim
42 words
The surgical stapling device of Claim 29, further including a column driving member adapted to engage the proximal end of said column of staples, and resilient means for urging said column driving member and said staple column distally along said longitudinal axis.
Claim 32
Dependent Claim
47 words
The surgical stapling device of Claim 30, further including an indicator slot formed in said distal portion of said barrel, and an indicator wand extending from said column driving member through said indicator slot and disposed to be visible from the exterior of said distal barrel portion.
Claim 33
Dependent Claim
46 words
The surgical stapling device of Claim 31, further including numerical indicia means extending. adjacent to said indicator slot and said indicator wand extending therefrom, said numerical indicia being spaced in correspondence with the position of said wand and the number of staples remaining in said column.
Claim 34
Dependent Claim
51 words
The surgical stapling device of any of Claims 24 to 32, further including means for requiring full translation of one of said gliding knobs in its respective guide channel along the entire length thereof in one direction before said gliding knob may return in the opposite direction along said guide channel.
Claim 35
Dependent Claim
34 words
The surgical stapling device of Claim 33, wherein said means for requiring full translation includes a track formed adjacent to one of said guide channels, and a toggled brake member disposed in said track.
Claim 36
Dependent Claim
27 words
The surgical stapling device of Claim 34, wherein said toggled brake member is rotatably secured to said trigger plate and adapted for translational movement along said track.
Claim 37
Dependent Claim
33 words
The surgical stapling device of Claim 35, wherein said toggled brake member includes frictional surface means disposed to engage a surface of said track and prevent reverse translation of said toggled brake member.
Claim 38
Dependent Claim
35 words
The surgical stapling device of Claim 36, wherein said track further includes camming surface means at both ends thereof to rotate said toggled brake member and permit reverse translation from one end to the other.
Claim 39
Dependent Claim
34 words
The surgical stapling device of any of Claims 17 to 37, further including finger spring means for disengaging said crimped staple from said flange means and said driving surface means of said form tool.
Claim 40
Dependent Claim
69 words
The surgical stapling device of Claim 38, wherein said finger spring means includes a finger spring extending distally and obliquely in said barrel and disposed to be deflected by said form tool and flange means translating distally thereby and to interject between said driving surfaces and said web portion of said crimped staple as said form tool and anvil tool means return proximally to disengage said web portion therefrom.
Claim 41
Dependent Claim
139 words
A trigger actuating mechanism for the surgical stapling device of any one of Claims 1 to 39, comprising; a trigger lever extending from-said tool in adjacent opposition to a handle portion, a trigger plate from which said trigger lever extends, said trigger plate including opposed ends and at least one pair of gliding knobs, each secured to one of said opposed ends in spaced apart, opposed relationship, a pair of guide channels formed in said tool, each of said guide channels adapted to receive and secure one of said gliding knobs in freely translating fashion, said guide channels being disposed within the same general plane and oriented along intersecting axis. Whereby movement of said trigger lever toward said handle portion causes translation of said gliding knobs in said guide channels and rotational and translational movement of said trigger plate.
Claim 42
Dependent Claim
32 words
The trigger actuating mechanism of Claim 40, wherein one of said opposed ends of said trigger plate is disposed distally of the other with respect to the longitudinal axis of the tool.
Claim 43
Dependent Claim
46 words
The trigger actuating mechanism of Claim 41, further including a driving block engaged with said gliding knob at said distal end of said trigger plate, said driving block disposed to be driven in reciprocal translational motion by movement of said trigger plate by said trigger lever.
Claim 44
Dependent Claim
34 words
The trigger actuating mechanism of Claim 42, wherein said driving block includes means for engaging the proximal end of work engaging member and driving said member in reciprocal translational motion along said longitudinal axis.
References Cited (Backward Citations)
No citation records indexed.
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