US5683388A
Expired / Lapsed
US
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Endoscopic bipolar multiple sample bioptome
Assignee: Boston Scientific Miami Corp
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Filing: 1996-01-11
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Granted: 1997-11-04
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Expires: 2016-01-11
Abstract
Abstract An endoscopic bipolar multiple sample bioptome includes a relatively long conductive flexible member having a lumen with an axially displaceable conductive wire extending therethrough and covered with an electrically insulating sheath. The proximal ends of the flexible member and wire are coupled to a manual actuation device for axially displacing one of the flexible member and wire relative to the other and the manual actuation device is provided with bipolar electrical couplings for electrically coupling one pole of a current source to the flexible member and the other pole of the current source to the wire. The distal end of the flexible member is mechanically and electrically coupled to a partially conductive cylinder having a distal edge and the distal end of the wire is mechanically and electrically coupled to the jaw assembly. The jaw assembly includes a pair of opposed toothed jaw cups each of which is coupled by a narrow resilient arm to a base member. The base member is mounted inside the cylinder and axial movement of the base member relative to the cylinder draws the necks of the jaws into the cylinder to bring the jaw cups together in a biting action. The cylinder is substantially non-conductive with portions of its exterior being conductive. Cautery current flows between the jaw assembly and the conductive portion(s) of the cylinder by way of tissue which is being cauterized.
Inventors
- 👤 Charles R. Slater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:09
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/06; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1442; A61B18/1492; A61B2010/0225; A61B18/1206; A61B2018/1246; A61B2018/126
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
289 words
An endoscopic bipolar bioptome, comprising: a) a conductive hollow outer member having a proximal end and a distal end; b) a conductive inner control member having a proximal end and a distal end, said control member being at least partially covered by an insulating sheath and extending through said hollow outer member; c) a partially conductive cylinder having a distal edge, said cylinder being electrically and mechanically coupled to said distal end of one of said hollow outer member and said inner control member, said partially conductive cylinder having a substantially non-conductive interior surface and an exterior surface which is conductive in at least some areas; d) a conductive jaw assembly including a base member and a pair of resilient arms extending distally from said base member, each of said resilient arms terminating in a jaw, said base member being coupled electrically and mechanically to said distal end of the other of said hollow outer member and said inner control member; and e) actuation means coupled to said proximal end of said hollow outer member and to said proximal end of said inner control member for axially displacing one of said hollow outer member and said inner control member relative to the other of said hollow outer member and said inner control member such that said cylinder extends around said pair of resilient arms and closes said jaws, said actuation means including electrical coupling means for coupling one pole of a bipolar cautery source to said hollow outer member and another pole of the bipolar cautery source to said inner control member, wherein cautery current applied to said electrical coupling means flows between said jaw assembly and said conductive areas of said cylinder via the tissue to be cauterized.
Claim 2
Dependent Claim
289 words
An endoscopic bipolar bioptome, comprising: a) a conductive hollow outer member having a proximal end and a distal end; b) a conductive inner control member having a proximal end and a distal end, said control member being at least partially covered by an insulating sheath and extending through said hollow outer member; c) a partially conductive cylinder having a distal edge, said cylinder being electrically and mechanically coupled to said distal end of one of said hollow outer member and said inner control member, said partially conductive cylinder having a substantially non-conductive interior surface and an exterior surface which is conductive in at least some areas; d) a conductive jaw assembly including a base member and a pair of resilient arms extending distally from said base member, each of said resilient arms terminating in a jaw, said base member being coupled electrically and mechanically to said distal end of the other of said hollow outer member and said inner control member; and e) actuation means coupled to said proximal end of said hollow outer member and to said proximal end of said inner control member for axially displacing one of said hollow outer member and said inner control member relative to the other of said hollow outer member and said inner control member such that said cylinder extends around said pair of resilient arms and closes said jaws, said actuation means including electrical coupling means for coupling one pole of a bipolar cautery source to said hollow outer member and another pole of the bipolar cautery source to said inner control member, wherein cautery current applied to said electrical coupling means flows between said jaw assembly and said conductive areas of said cylinder via the tissue to be cauterized.
Claim 3
Dependent Claim
30 words
An endoscopic bipolar bioptome according to claim 1, wherein:. said hollow outer member is a flexible coil having a lumen and said inner control member is a flexible control wire.
Claim 4
Dependent Claim
43 words
An endoscopic bipolar bioptome according to claim 1, wherein: said manual actuation means includes i) a shaft having a distal bore, a proximal thumb ring, and a central slot, and ii) a displaceable spool having a cross member extending through said central slot.
Claim 5
Dependent Claim
36 words
An endoscopic bipolar bioptome according to claim 3, wherein: said proximal end of said hollow outer member is coupled to said shaft, and said proximal end of said inner control member is coupled to said spool.
Claim 6
Dependent Claim
41 words
An endoscopic bipolar bioptome according to claim 1, wherein: said cylinder is coupled to said distal end of said inner control member, and said base member of said jaw assembly is coupled to said distal end of said outer hollow member.
Claim 7
Dependent Claim
44 words
An endoscopic bipolar bioptome according to claim 5, wherein: said cylinder has a radial hole, said distal end of said control member is bent and coupled to said radial hole, and said conductive areas of said cylinder include an area adjacent said radial hole.
Claim 8
Dependent Claim
32 words
An endoscopic bipolar bioptome according to claim 6, wherein: said conductive areas of said cylinder include a ring adjacent said distal edge and a stripe from said ring to said radial hole.
Claim 9
Dependent Claim
41 words
An endoscopic bipolar bioptome according to claim 1, wherein: said cylinder is coupled to said distal end of said hollow outer member, and said base member of said jaw assembly is coupled to said distal end of said inner control member.
Claim 10
Dependent Claim
32 words
An endoscopic bipolar bioptome according to claim 8, wherein: said base member has a radial hole and said distal end of said control member is bent and coupled to said radial hole.
Claim 11
Dependent Claim
27 words
An endoscopic bipolar bioptome according to claim 8, wherein: said conductive areas of said cylinder include an area adjacent said distal end of said hollow outer member.
Claim 12
Dependent Claim
33 words
An endoscopic bipolar bioptome according to claim 10, wherein: said conductive areas of said cylinder include a first area adjacent said distal edge and a second area extending proximally from said first area.
Claim 13
Dependent Claim
33 words
An endoscopic bipolar bioptome according to claim 11, wherein: said conductive areas of said cylinder include a third area at a proximal edge of said cylinder making contact with said hollow outer member.
Claim 14
Dependent Claim
22 words
An endoscopic bipolar bioptome according to claim 11, wherein: said first area is a ring and said second area is a stripe.
Claim 15
Dependent Claim
26 words
An endoscopic bipolar bioptome according to claim 1, wherein: said cylinder is a non-conductive ceramic and said conductive areas are conductive traces on said non-conductive ceramic.
Claim 16
Dependent Claim
16 words
An endoscopic bipolar bioptome according to claim 14, wherein: said conductive traces are formed by metallization.
Claim 17
Dependent Claim
21 words
An endoscopic bipolar bioptome according to claim 1, wherein: said cylinder is anodized aluminum with conductive areas on said exterior surface.
Claim 18
Dependent Claim
25 words
An endoscopic bipolar bioptome according to claim 16, wherein: said conductive areas are non-anodized areas formed by masking said cylinder prior to anodizing said cylinder.
References Cited (Backward Citations)
US3920021A
Cited
US4985030A
Cited
US5482054A
Cited
US5147357A
Cited
US5324289A
Cited
US5542432A
Cited
WO1994017741A1
Cited
EP0623316A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-11-03 | 2001-05-05 | 2001-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-03 | 2005-05-05 | 2005-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-03 | 2009-05-05 | 2009-11-04 | $7700.00 | Window Closed / Lapsed |