Patent EP0601709A2 successfully refreshed from Google Patents.
EP0601709A2
Expired / Lapsed
EP
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Surgical cutting instrument for coring tissue affixed thereto
Assignee: Cook Urological Inc
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Filing: 1993-11-04
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Granted: —
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Expires: 2013-11-04
Abstract
Abstract A surgical cutting instrument for coring, debulking, and removing a large, tough tissue mass such as a fibroid tumor through a trocar access sheath during a minimally invasive surgical procedure. The instrument includes an outer sheath having a distal cutting end for coring the tissue mass and an inner elongated member having a distal, tissue affixation end such as a helical coil for inserting into and stabilizing the tissue mass during the surgical coring procedure. The cutting instrument further includes an instrument engagement assembly when in an engaged position for urging the outer sheath toward the distal end of the inner elongated member. As a result, tissue affixed to the distal end of the inner elongated member is cored as the outer sheath is urged toward the distal end of the inner member and engages the affixed tissue. The instrument engagement assembly includes sheath and member engagement subassemblies. The sheath engagement subassembly is positioned about the proximal end of the outer sheath and includes a hub with a pivotedly interconnected side arm. The member engagement subassembly positioned along the intermediate portion of the inner member includes multiple start helical threads. The side arm has projections extending laterally therefrom for extension into the passage of the hub and engaging the multiple start helical threads of the inner member.
Inventors
- 👤 Howard C. Topel
- 👤 Thomas L. Foster
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 10:15
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/32053; A61B17/320016; A61B10/00; A61B10/02; A61B10/0233; A61B10/0266; A61B17/32002; A61B2017/320024; A61B17/34; A61B2017/348; A61B2017/3482; A61B2017/3484; A61B2017/3488
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
138 words
A surgical cutting instrument (10) comprising a tube (11) having a cutting mechanism at the distal end thereof, and a passage (17) extending longitudinally through the tube; an elongated member (13), at least part of which (12) can be inserted through the passage with the distal end (14) of the member extendable from the distal end of the tube and having a part (32) thereof fixable to tissue when inserted therein; and means (18) for enabling an operator to cut through the said fixable tissue with the cutting mechanism; CHARACTERISED IN THAT the enabling means comprises an arrangement (20,30) for enabling the operator to move the cutting mechanism towards and/or past the distal end of the elongated member, and for enabling the operator to simultaneously rotate the cutting mechanism, thereby permitting the said fixable tissue to be cored.
Claim 2
Dependent Claim
138 words
A surgical cutting instrument (10) comprising a tube (11) having a cutting mechanism at the distal end thereof, and a passage (17) extending longitudinally through the tube; an elongated member (13), at least part of which (12) can be inserted through the passage with the distal end (14) of the member extendable from the distal end of the tube and having a part (32) thereof fixable to tissue when inserted therein; and means (18) for enabling an operator to cut through the said fixable tissue with the cutting mechanism; CHARACTERISED IN THAT the enabling means comprises an arrangement (20,30) for enabling the operator to move the cutting mechanism towards and/or past the distal end of the elongated member, and for enabling the operator to simultaneously rotate the cutting mechanism, thereby permitting the said fixable tissue to be cored.
Claim 3
Dependent Claim
33 words
The instrument of claim 1, wherein the enabling means comprises tube engagement means (20) positioned on said tube and member engagement means (21) positioned on said elongated member for selectively engaging each other.
Claim 4
Dependent Claim
34 words
The instrument of claim 2, wherein the tube engagement means includes a hub (24) attached about said proximal end of the tube and having a passage (25) communicating with said passage of the tube.
Claim 5
Dependent Claim
28 words
The instrument of claim 3, wherein said member engagement means includes positioning means (30) for controlling the position of said elongated member in said passage of the tube.
Claim 6
Dependent Claim
25 words
The instrument of claim 4, wherein said sheath engagement means further includes selector means (26) attached to said hub for selectively engaging said positioning means.
Claim 7
Dependent Claim
27 words
The instrument of claim 5, wherein said positioning means includes an intermediate portion (58) of said elongated member having an outer surface with helical groove (64,65) therein.
Claim 8
Dependent Claim
73 words
The instrument of claim 6, wherein said selector means includes an arm (26) pivotedly connected to said hub and having at least one projection (28,29) extending laterally therefrom and into said passage of said hub when said instrument engagement means is in said predetermined position, whereby said at least one projection is positioned in said helical groove of said intermediate portion of said elongated member when positioned in said passage of said hub.
Claim 9
Dependent Claim
64 words
The instrument of claim 6, wherein said selector means comprises an arm (26) slidably attached to said hub, said arm having a slot therethrough communicating with said passage of said hub, said slot having a plurality of at least partial grooves mating with said helical groove of said proximal portion of said elongated member when said instrument engagement means is in said predetermined position.
Claim 10
Dependent Claim
15 words
The instrument of any one preceding claim, wherein said part includes a helical coil (32).
Claim 11
Dependent Claim
37 words
The instrument of claim 1 wherein said cutting mechanism includes a cutting edge positioned circumferentially around the distal end of the tube, or positioned at a predetermined angle with respect to a longitudinal axis of said tube.
Claim 12
Dependent Claim
47 words
The instrument of claim 10, wherein said hub includes a sleeve fixedly positioned longitudinally and rotatably positioned around a proximal end thereof, said sleeve optionally including a thumb rest positioned on an outer surface of said sleeve, and wherein said thumb rest may include a finger pull.
Claim 13
Dependent Claim
125 words
A surgical cutting instrument comprising a tube having a cutting mechanism at the distal end thereof, a proximal end, and a passage extending longitudinally therethrough; an elongated member at least part of which can be inserted through the passage with the distal end of the member extendable from the distal end of the tube, the distal end of the member having a part thereof fixable in the tissue; and means for enabling an operator to achieve rotation of the tube and movementthere- of towards the distal end of elongated member whilst the latter is retained in a fixed position with the said tissue fixed thereto, whereby forward and rotational movement of the tube causes the cutting mechanism to rotate and core the said fixable tissue.
Claim 14
Dependent Claim
125 words
A surgical cutting instrument comprising a tube having a cutting mechanism at the distal end thereof, a proximal end, and a passage extending longitudinally therethrough; an elongated member at least part of which can be inserted through the passage with the distal end of the member extendable from the distal end of the tube, the distal end of the member having a part thereof fixable in the tissue; and means for enabling an operator to achieve rotation of the tube and movementthere- of towards the distal end of elongated member whilst the latter is retained in a fixed position with the said tissue fixed thereto, whereby forward and rotational movement of the tube causes the cutting mechanism to rotate and core the said fixable tissue.
Claim 15
Independent Claim
86 words
A method of coring biological tissue comprising the steps of introducing an elongated member through a tube towards the tissue, the tube having a cutting mechanism at its distal end thereof, and the member having tissue attachment means at its distal end, introducing the attachment means into the tissue to fix the latter, and moving the cutting mechanism into the tissue with longitudinal and rotary movement relative to the fixed tissue, whereby the fixed tissue is cored and retained within the distal end of the tube.
Claim 16
Independent Claim
86 words
A method of coring biological tissue comprising the steps of introducing an elongated member through a tube towards the tissue, the tube having a cutting mechanism at its distal end thereof, and the member having tissue attachment means at its distal end, introducing the attachment means into the tissue to fix the latter, and moving the cutting mechanism into the tissue with longitudinal and rotary movement relative to the fixed tissue, whereby the fixed tissue is cored and retained within the distal end of the tube.
Claim 17
Dependent Claim
52 words
A method according to claim 21, wherein the attachment means and the distal end of the tube are simultaneously withdrawn, and wherein the attachment means is moved to another site of biological tissue and attached to the tissue at said other site whilst the said fixed tissue is retained within the tube.
References Cited (Backward Citations)
No citation records indexed.
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