EP0484677B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Apparatus for placing staples in laparoscopic or endoscopic procedures
Assignee: United States Surgical Corp
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Filing: 1991-10-04
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Granted: 1996-06-12
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Expires: 2011-10-04
Abstract
No abstract record available.
Inventors
- 👤 David T. Green
- 👤 Henry Bolanos
- 👤 Daniel E. Alesi
- 👤 Keith Ratcliff
- 👤 Charles R. Sherts
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 16:30
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/068; A61B17/072; A61B17/07207; A61B2017/07214
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
241 words
Surgical apparatus for driving surgical fasteners into body tissue comprising: a) a frame (600); b) a distal portion (758) defining a longitudinal axis and extending distally from said frame, said distal portion including: i) an elongated support (778) haying a distal member accommodating a replaceable cartridge assembly (836), the replaceable cartridge assembly including a plurality of surgical fasteners (842) slidably mounted therein, and having a tissue engaging surface; ii) an elongate anvil member (796) having a fastener forming surface (818) and one end pivotally retained in said elongated support such that an anvil member is movable between an open position and a closed position wherein the fastener forming surface is in close cooperative alignment with the tissue engaging surface of the cartridge assembly; iii) means (602) for moving the anvil member between the open position and the closed position; iv) means (636) for ejecting the surgical fasteners from the cartridge assembly, whereby the fasteners engage the fastener forming surface; and v) means (850) for disabling the apparatus after a single actuation of the ejecting means (139); the apparatus being characterised in that: the anvil member is aligned lengthwise with the longitudinal axis and said one end is the proximal end of the anvil member; in that the apparatus is suitable for endoscopy or laparoscopy and in that the distal portion is an endoscopic portion; and further characterised by: gas sealing means (742) to atmospherically isolate the endoscopic portion and the frame.
Claim 2
Dependent Claim
19 words
Apparatus as claimed in claim 1, further comprising means (772) for rotating the endoscopic portion around the longitudinal axis.
Claim 3
Dependent Claim
156 words
Apparatus as claimed in any one of the preceding claims, wherein the means for moving the endoscopic portion between the open position and the closed position comprises: a) an arcuate camming surface (822) having a defined radius of curvature; and b) a collar tube (752) disposed around at least a portion of the elongated support, said collar tube having a distal camming surface (756) with a defined radius of curvature and further being movable between a first position in which the distal camming surface is located proximally to the proximal end of the arcuate camming surface (822), and a second position in which the distal camming surface is located distally to the proximal end of the arcuate camming surface, the distal camming surface cooperating with the arcuate camming surface such that when the collar tube (752) is moved from the first position to the second position, the arcuate camming surface is urged to the closed position.
Claim 4
Dependent Claim
36 words
Apparatus as claimed in claim 3, wherein the distal camming surface (756) on the collar tube (752) has a radius of curvature which is shorter than the radius of curvature of the arcuate camming surface (822).
Claim 5
Dependent Claim
89 words
Apparatus of claim 3 or 4, wherein said means for moving the collar tube between the first position and the second position further comprise: a) an extension tube (726) extending longitudinally to the frame and having proximal and distal ends; b) means (602, 724) for longitudinally moving the extension tube relative to the frame; and c) means (748) for transmitting longitudinal movement from the distal end of the extension tube to the collar tube such that the collar tube is movable between the first position and the second position.
Claim 6
Dependent Claim
31 words
Apparatus as claimed in any one of the preceding claims and including a fastener forming surface of titanium nitride or of a metal alloy selected from nickel, gold, silver and chromium.
Claim 7
Dependent Claim
30 words
Apparatus as claimed in any one of the preceding claims, wherein the anvil member (796) is pivotally mounted within the elongated support (778) by means of a leaf spring (814).
Claim 8
Dependent Claim
18 words
Apparatus as claimed in claim 7 , wherein the anvil member is interchangeably mounted within the elongated support.
Claim 9
Dependent Claim
27 words
Apparatus as claimed in any one of the preceding claims, further comprising interlock means (612) for preventing actuation when the apparatus is not in a closed position.
Claim 10
Dependent Claim
25 words
Apparatus as claimed in any one of the preceding claims, and further comprising manual safety means (662) for blocking retraction of said ejecting means (636).
Claim 11
Dependent Claim
81 words
Apparatus as claimed in any one of the preceding claims, wherein the replaceable cartridge assembly comprises: a cartridge housing (832); a cartridge holding a plurality of surgical fasteners (842) slidably disposed therein in abutment with corresponding pushers, the cartridge defining a plurality of longitudinal slots (934) accessing the pushers; a cam bar adapter (846) removably mounting a plurality of cam bars (844), the cam bars adapted for longitudinal movement through the longitudinal slots to engage the pushers and eject the staples.
Claim 12
Dependent Claim
26 words
Apparatus as claimed in claim 11 , further comprising a knife (826), and means for disabling the knife after a single distal pass through the cartridge.
Claim 13
Dependent Claim
55 words
Apparatus as claimed in claim 11 or 12, wherein the plurality of cam bars are adapted for a single distal pass through the longitudinal slots, in that the cam bars are detached from the cam bar adapter after a single distal pass through the longitudinal slots and are retained therein to disable the cartridge assembly.
Claim 14
Dependent Claim
31 words
Apparatus as claimed in claim 13 as dependent on claim 12, and further wherein the knife is mounted to the cam bar adapter and adapted for longitudinal motion through the cartridge.
Claim 15
Dependent Claim
42 words
Apparatus as claimed in claim 14 wherein said means for disabling the knife comprises disengagement means for disengaging a channel (708) of the ejecting means (636) from the cam bar adapter after a single distal pass of the knife through the cartridge.
Claim 16
Dependent Claim
25 words
Apparatus as claimed in claim 15 , further comprising abutment means for preventing reengagement of the channel and the cam bar adapter after disengagement thereof.
Claim 17
Dependent Claim
33 words
Apparatus as claimed in any one of the preceding claims, and provided with at least one tissue stop (828) to facilitate alignment of the apparatus and prevent over insertion of the tissue therein.
Claim 18
Dependent Claim
20 words
Apparatus as claimed in any one of the preceding claims, and arranged with a pistol grip at its proximal end.
References Cited (Backward Citations)
No citation records indexed.
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