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EP0503689A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Surgical instrument for establishing compression anastomosis

Assignee: REBUFFAT Carlo
•
Filing: 1989-03-20
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Granted: —
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Expires: 2009-03-20
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Abstract

Abstract A surgical instrument (10) for installing a plurality of interlocking coupling members (42, 44, 46) forming a compression anastomosis assembly (40), particularly suitable for use in achieving anastomosis of a resected tubular organ. Disclosed and claimed is a unique aligning component for aligning and exerting a compressive force on members of an associated coupling assembly. The instrument may have a cutting portion designed and configured for rotational movement as the cutter (80) advances to perform its intended functions of serving tissue and at least a portion of one of the members of the assembly. Also disclosed is a dual locking feature for alternately locking a driving component and an aligning component against movement where, in a first mode, the aligning component is operative when the driving component is locked and, in a second mode, the driving component is operative when the aligning component is locked. Lastly, there is disclosed a surgical instrument capable of assuming a variety of configurations to accommodate a number of anatomical orientations and operating situations.

Inventors

  • 👤 Alfred V. Vasconcellos
  • 👤 Ionel E. Theodorescu
  • 👤 Joel W. Cummings
  • 👤 Dean E. Mcbeth

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 04:35
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/11; A61B17/115; A61B17/1155

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 190 words
A device (10) for introduction into a tubular bodily cavity, for installing an annular coupling assembly (40) having a plurality of coupling members (42, 44, 46) which can be urged into mutual locking engagement for compression anastomosis of tubular structure followed by withdrawal of the device from the body, the device comprising: a body having a bore (63) located therein and including a handle portion (12), an intermediate portion (14) and a head portion (16), with said head portion (16) having a recess (68) intersecting said bore (63); said recess (68) containing driver means and cutter means; means for supporting the coupling members (42, 44, 46) of said assembly (40); for aligning said coupling members, aligning means comprising a core (28) having a first end coupled to one of said coupling members and a second end coupled to a movable element (50), a knob (18) coupled to said element (50) and means disposed in said handle portion (12) for guiding the movement of said element (50) and said knob (18); and means for driving said driver means for urging said coupling members into locking engagement and advancing said cutter means.
Claim 2
Independent Claim 190 words
A device (10) for introduction into a tubular bodily cavity, for installing an annular coupling assembly (40) having a plurality of coupling members (42, 44, 46) which can be urged into mutual locking engagement for compression anastomosis of tubular structure followed by withdrawal of the device from the body, the device comprising: a body having a bore (63) located therein and including a handle portion (12), an intermediate portion (14) and a head portion (16), with said head portion (16) having a recess (68) intersecting said bore (63); said recess (68) containing driver means and cutter means; means for supporting the coupling members (42, 44, 46) of said assembly (40); for aligning said coupling members, aligning means comprising a core (28) having a first end coupled to one of said coupling members and a second end coupled to a movable element (50), a knob (18) coupled to said element (50) and means disposed in said handle portion (12) for guiding the movement of said element (50) and said knob (18); and means for driving said driver means for urging said coupling members into locking engagement and advancing said cutter means.
Claim 3
Dependent Claim 49 words
A device (10) according to claim 1 characterized in that said guide means includes at least one elongated slot (20) cooperating with at least one pin (54) coupling said element (50) and said knob (18) adapted for positioning said one coupling member relative to the other said coupling members.
Claim 4
Dependent Claim 31 words
A device (10) according to claim 1 or 2 characterized in that said guide means further includes means for applying a compressive force between at least two of said coupling members.
Claim 5
Dependent Claim 34 words
A device (10) according to claim 3 characterized in that said compressive force is achieved through a coaction of said pin (54) and a curve (56) disposed in one end of said slot (20).
Claim 6
Dependent Claim 47 words
A device (10) according to claim 2, 3 or 4, characterized in that said slot (20) further includes one or more notches (21) disposed along said slot (20) for releasably locking said one coupling member in one or more positions relative to the other said coupling members.

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