US4982727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endoscopic treating instrument
Assignee: Olympus Corp
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Filing: 1990-04-13
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Granted: 1991-01-08
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Expires: 2010-04-13
Abstract
Abstract An endoscopic treating instrument having a coil sheath, and a treating portion at the distal end of the coil sheath. The coil sheath includes a distal portion having a flexible coil sheath formed by a single wire, a proximal portion having a relatively hard coil sheath formed by a plurality of wires, and an intermediate portion between the distal and proximal portions, the intermediate portion having a coil sheath of an intermediate hardness between the hardness of the coil sheaths of the distal and proximal portions. This structure can prevent the coil sheath from being broken in its intermediate portion.
Inventors
- 👤 Yukio Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:55
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/28; A61B17/29; A61B2017/2901; A61B2017/2905
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
85 words
An endoscopic treating instrument comprising a coil sheath having a treating portion at a distal end of the coil sheath, the coil sheath comprising: a distal coil portion formed by a single wire, a proximal coil portion formed by a plurality of wires, the proximal coil portion being harder than the distal coil portion, and an intermediate coil portion between the distal and proximal coil portions, the intermediate coil portion being of an intermediate hardness between the hardness of the distal and proximal coil portions.
Claim 2
Dependent Claim
85 words
An endoscopic treating instrument comprising a coil sheath having a treating portion at a distal end of the coil sheath, the coil sheath comprising: a distal coil portion formed by a single wire, a proximal coil portion formed by a plurality of wires, the proximal coil portion being harder than the distal coil portion, and an intermediate coil portion between the distal and proximal coil portions, the intermediate coil portion being of an intermediate hardness between the hardness of the distal and proximal coil portions.
Claim 3
Dependent Claim
31 words
The endoscopic treating instrument of claim 1, in which the intermediate coil portion is formed by a single wire of a diameter larger than the wire of the distal coil portion.
Claim 4
Dependent Claim
35 words
The endoscopic treating instrument of claim 2, in which the distal coil portion is formed by a single stainless steel wire and the proximal coil portion is formed by a plurality of stainless steel wires.
Claim 5
Dependent Claim
33 words
The endoscopic treating instrument of claim 1, in which the proximal coil portion is formed by a plurality of overlapping coils, each of which is formed buy a plurality of stainless steel wires.
Claim 6
Dependent Claim
44 words
The endoscopic treating instrument of claim 4, in which the distal coil portion is formed by a single stainless steel wire and the intermediate coil portion is formed by a single wire of a diameter larger than the wire of the distal coil portion.
Claim 7
Dependent Claim
26 words
The endoscopic treating instrument of claim 1, 2, 3, 4 or 5, in which the distal, intermediate and proximal coil portions are connected by connecting tubes.
Claim 8
Dependent Claim
21 words
The endoscopic treating instrument of claim 1, in which the distal and intermediate coil portions are formed by a common wire.
Claim 9
Dependent Claim
24 words
The endoscopic treating instrument of claim 1, in which the intermediate coil portion further comprises a soft distal portion and a hard proximal portion.
Claim 10
Dependent Claim
30 words
The endoscopic treating instrument of claim 1, in which the treating instrument is adapted to be inserted in a channel of an endoscope to be introduced into a body cavity.
Claim 11
Dependent Claim
38 words
The endoscopic treating instrument of claim 9, in which the distal coil portion is adapted to be positioned in a bending portion of an endoscope when the endoscopic treating instrument is inserted in a channel of the endoscope.
Claim 12
Dependent Claim
105 words
An endoscopic treating instrument comprising a coil sheath having a distal end and a proximal end; a treating portion at the distal end of the coil sheath; and an operating portion at the proximal end of the coil sheath, the coil sheath comprising: a distal coil portion formed by a single wire, a proximal coil portion having a relatively hard coil sheath formed by a plurality of wires, and an intermediate coil portion between the distal and proximal coil portions, the intermediate coil portion having a coil sheath of an intermediate hardness between the hardness of the coil sheaths of the distal and proximal portions.
Claim 13
Dependent Claim
105 words
An endoscopic treating instrument comprising a coil sheath having a distal end and a proximal end; a treating portion at the distal end of the coil sheath; and an operating portion at the proximal end of the coil sheath, the coil sheath comprising: a distal coil portion formed by a single wire, a proximal coil portion having a relatively hard coil sheath formed by a plurality of wires, and an intermediate coil portion between the distal and proximal coil portions, the intermediate coil portion having a coil sheath of an intermediate hardness between the hardness of the coil sheaths of the distal and proximal portions.
Claim 14
Dependent Claim
25 words
The endoscopic treating instrument of claim 11, in which the treating and operating portions are connected by an operating wire disposed in the coil sheath.
References Cited (Backward Citations)
US3788304A
Cited
US3895636A
Cited
US4271845A
Cited
JPS55109501A
Cited
JPS568029A
Cited
JPS598946A
Cited
US4817630A
Cited
DE8808285U1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-01-07 | 1994-07-09 | 1995-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-07 | 1998-07-09 | 1999-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-07 | 2002-07-09 | 2003-01-08 | $7700.00 | Window Closed / Lapsed |