EP0137685B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Tissue retention spool for intraluminal anastomotic surgical stapling instrument and methods
Assignee: Ethicon Inc
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Filing: 1984-08-24
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Granted: 1988-06-08
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Expires: 2004-08-24
Abstract
No abstract record available.
Inventors
- 👤 Robert G. Rothfuss
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 21:40
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/11; A61B17/115; A61B17/1155; A61B2017/1142
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
109 words
An intraluminal anastomotic surgical stapling instrument having a staple cartridge, a cylindrical scalpel within the cartridge, and a staple anvil mounted on a rod extending from the staple cartridge, the anvil being shiftable toward the staple cartridge for bringing ends of the transected tubular tissue structure together for stapling, characterised in that a tissue retention means (30) is mounted on the rod (22) accessible between the staple cartridge (15) and the anvil (14) for holding an end of a tubular tissue structure prior to and during an anastomotic procedure, and in that the tissue retention means (30) is frictionally mounted on the rod (22) and is yieldably slidable therealong.
Claim 2
Dependent Claim
109 words
An intraluminal anastomotic surgical stapling instrument having a staple cartridge, a cylindrical scalpel within the cartridge, and a staple anvil mounted on a rod extending from the staple cartridge, the anvil being shiftable toward the staple cartridge for bringing ends of the transected tubular tissue structure together for stapling, characterised in that a tissue retention means (30) is mounted on the rod (22) accessible between the staple cartridge (15) and the anvil (14) for holding an end of a tubular tissue structure prior to and during an anastomotic procedure, and in that the tissue retention means (30) is frictionally mounted on the rod (22) and is yieldably slidable therealong.
Claim 3
Dependent Claim
47 words
An instrument as claimed in claim 1 wherein the tissue retention means (30) is movable between a first position disposed between the anvil (14) and the staple cartridge (15) for attachment of a closed tubular tissue structure thereto and a second position within the staple cartridge (15).
Claim 4
Dependent Claim
54 words
An instrument as claimed in either claim 1 or 2 wherein the tissue retention means (30) is frictionally mounted on the rod (22) against axial movement therealong and is yieldable for movement along the the rod (22) and within the cylindrical scalpel (18) when the anvil (14) is shifted towards the staple cartridge (15).
Claim 5
Dependent Claim
18 words
An instrument as claimed in any preceding claim wherein the tissue retention means comprises a flanged spool (30).
Claim 6
Dependent Claim
31 words
An instrument as claimed in claim 4 wherein the spool (30) has a flange (31, 32) at each end and includes radially extending tissue engaging projections (34) disposed between the flanges.
Claim 7
Dependent Claim
40 words
An instrument as claimed in either claim 4 or 5 wherein the spool (30) has an internal bore receiving the rod (22), and wherein elongated, - axially extending, radially inwardly projecting projections (40) frictionally engage the rod within the bore.
Claim 8
Dependent Claim
24 words
An instrument as claimed in claim 6 wherein the ends (41, 42) of the axially extending projections (40) are tapered away from the rod.
Claim 9
Dependent Claim
30 words
An instrument as claimed in either claim 4 or 5 wherein the spool (30) has an internal bore defined by a resilient surface for frictional, yieldable engagement with the rod.
Claim 10
Dependent Claim
31 words
An instrument as claimed in any one of claims 4 to 8 wherein the outer diameter of the spool (30) is less than the inside diameter of the cylindrical scalpel (18).
Claim 11
Dependent Claim
61 words
A tissue retention spool for an intraluminal anastomotic surgical stapling instrument having at least one flanged end extending radially outwardly of the spool and a cylindrical tissue retention surface including a plurality of radial tissue engaging projection means for holding the tissue against sliding therefrom, characterized in that the spool (30) has an internal bore having yieldable frictional gripping means (40).
Claim 12
Dependent Claim
61 words
A tissue retention spool for an intraluminal anastomotic surgical stapling instrument having at least one flanged end extending radially outwardly of the spool and a cylindrical tissue retention surface including a plurality of radial tissue engaging projection means for holding the tissue against sliding therefrom, characterized in that the spool (30) has an internal bore having yieldable frictional gripping means (40).
Claim 13
Dependent Claim
25 words
A tissue retention spool as claimed in claim 10 wherein the yieldable frictional gripping means comprises a plurality of axially extending inwardly projecting lugs (40).
Claim 14
Dependent Claim
19 words
A tissue retention spool as claimed in claim 11 wherein ends (41, 42) of the lugs (40) are tapered.
Claim 15
Dependent Claim
24 words
A tissue retention spool as claimed in any one of claims 10 to 12 wherein the spool (30) is formed from a resilient material.
References Cited (Backward Citations)
No citation records indexed.
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