US6719752B2
Expired / Lapsed
US
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Endoscopic treatment instrument
Assignee: Pentax Corp
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Filing: 2001-08-29
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Granted: 2004-04-13
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Expires: 2021-08-29
Abstract
Abstract In an endoscopic treatment instrument, a flexible tube has an area (A) which is to be located within an curved area ( 13 ) of an endoscope and which has a flattened cross-sectional shape.
Inventors
- 👤 Teruo Ouchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:28
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/00234; A61B2017/00292; A61B2017/00336
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
112 words
An endoscopic treatment instrument having a flexible tube provided in a treatment instrument insertion channel extending through an inserting section of an endoscope, said flexible tube being such that a portion thereof, located within a curved area formed in the distal end portion of said inserting section has a cross-sectional shape which promotes bending of said portion of the flexible tube in a first direction; wherein a portion of said flexible tube located closer to the distal end than said portion located within said curved area has a cross-sectional shape that is formed to have a flattened or notched cross-sectional shape which is twisted from said portion located within said curved area.
Claim 2
Dependent Claim
112 words
An endoscopic treatment instrument having a flexible tube provided in a treatment instrument insertion channel extending through an inserting section of an endoscope, said flexible tube being such that a portion thereof, located within a curved area formed in the distal end portion of said inserting section has a cross-sectional shape which promotes bending of said portion of the flexible tube in a first direction; wherein a portion of said flexible tube located closer to the distal end than said portion located within said curved area has a cross-sectional shape that is formed to have a flattened or notched cross-sectional shape which is twisted from said portion located within said curved area.
Claim 3
Dependent Claim
18 words
The endoscopic treatment instrument according to claim 1 , wherein the cross-sectional shape is a flattened cross-sectional shape.
Claim 4
Dependent Claim
18 words
The endoscopic treatment instrument according to claim 2 , wherein the flattened cross-sectional shape is elliptical or prolate.
Claim 5
Dependent Claim
18 words
The endoscopic treatment instrument according to claim 1 , wherein the cross-sectional shape is a notched cross-sectional shape.
Claim 6
Dependent Claim
33 words
The endoscopic treatment instrument according to claim 4 , wherein the notched cross-sectional shape is formed by reducing a wall thickness of the flexible tube in a direction opposite from said first direction.
Claim 7
Dependent Claim
54 words
The endoscopic treatment instrument according to claim 1 , wherein a portion of said flexible tube located closer to the distal end than said portion located within said curved area has a cross-sectional shape which promotes bending of said portion of said flexible tube located closer to the distal end in a second direction.
Claim 8
Dependent Claim
49 words
The endoscopic treatment instrument according to claim 1 , wherein a distal end treating member that is exposed on an outer surface of said flexible tube is provided in a portion of said flexible tube located closer to the distal end than said portion located within said curved area.
Claim 9
Dependent Claim
146 words
An endoscopic treatment instrument for use with an endoscope, the instrument comprising: a treatment instrument insertion channel extending through an inserting section of the endoscope, said treatment instrument insertion channel having a distal end and a curved area close to the distal end; and a flexible tube having a first area located within the curved area of said treatment instrument insertion channel, and a second area continuous with the first area and projecting from the distal end of said treatment instrument insertion channel, wherein the first area is more readily bendable in a first specified direction; wherein the second area is more readily bendable in a second specified direction; and wherein the orientation of the second area is gradually changed so that said second specified direction at a distal end of the second area opposite from the first area is different from said first specified direction.
Claim 10
Dependent Claim
146 words
An endoscopic treatment instrument for use with an endoscope, the instrument comprising: a treatment instrument insertion channel extending through an inserting section of the endoscope, said treatment instrument insertion channel having a distal end and a curved area close to the distal end; and a flexible tube having a first area located within the curved area of said treatment instrument insertion channel, and a second area continuous with the first area and projecting from the distal end of said treatment instrument insertion channel, wherein the first area is more readily bendable in a first specified direction; wherein the second area is more readily bendable in a second specified direction; and wherein the orientation of the second area is gradually changed so that said second specified direction at a distal end of the second area opposite from the first area is different from said first specified direction.
Claim 11
Dependent Claim
21 words
The endoscopic treatment instrument according to claim 8 , wherein said first specified direction is identical to said second specified direction.
Claim 12
Dependent Claim
18 words
The endoscopic treatment instrument according to claim 8 , wherein the first area has a notched cross-sectional shape.
Claim 13
Dependent Claim
32 words
The endoscopic treatment instrument according to claim 8 , wherein a wall thickness of the first area is partially reduced to provide the ability to readily bend in a first specified direction.
Claim 14
Dependent Claim
18 words
The endoscopic treatment instrument according to claim 9 , wherein the first area has an elliptical cross-sectional shape.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-04-13 | 2007-10-13 | 2008-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-04-13 | 2011-10-13 | 2012-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-04-13 | 2015-10-13 | 2016-04-13 | $7700.00 | Window Closed / Lapsed |