US4706656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endoscope device with tool channel
Assignee: Olympus Corp
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Filing: 1986-05-05
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Granted: 1987-11-17
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Expires: 2006-05-05
Abstract
Abstract An endoscope device wherein an observing optical system, illuminating optical system and channel are incorporated into respectively independent pipes which are then arranged as exposed out to form an endoscope inserting part and the above mentioned channel is formed to be of a noncircular cross-section so that, when a treating tool is inserted through the channel, a larger hollow gap may be made between the inner wall of the channel and the treating tool.
Inventors
- 👤 Tetsumaru Kuboto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:05
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/00163; A61B1/00165; A61B1/00167; A61B1/00131; A61B1/00135; A61B1/0017; A61B1/00195; A61B1/12; A61B1/012; A61B1/018
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
77 words
An endoscope device characterized in that an observing optical systems, illuminating optical system and treatment tool channel are incorporated into respectively independent pipes which are then arranged to form an endoscope inserting part, said treatment tool channel pipe being formed in a noncircular cross-section and having a hollow gap extending axially along the interior of said treatment tool channel pipe between the treating tool and said treatment tool channel pipe when the treatment tool is inserted therethrough.
Claim 2
Dependent Claim
77 words
An endoscope device characterized in that an observing optical systems, illuminating optical system and treatment tool channel are incorporated into respectively independent pipes which are then arranged to form an endoscope inserting part, said treatment tool channel pipe being formed in a noncircular cross-section and having a hollow gap extending axially along the interior of said treatment tool channel pipe between the treating tool and said treatment tool channel pipe when the treatment tool is inserted therethrough.
Claim 3
Dependent Claim
59 words
An endoscope device according to claim 1 wherein said treatment tool channel tool pipe is formed in an elliptic cross-section having at least a substantially flat side wall and said observing optical system pipe and said illuminating optical system pipe extend axially along one of the substantially flat outer elongated elliptical wall portions of said treatment tool channel pipe.
Claim 4
Dependent Claim
55 words
An endoscope device according to claim 1 wherein said treatment tool channel pipe is formed in a semicircular cross-section having a substantially flat side wall and said observing optical system pipe and said illuminating optical system pipe extend axially along the outer surface of the substantially flat side wall of said treatment tool channel pipe.
References Cited (Backward Citations)
US1459313A
Cited
US2797683A
Cited
US3261350A
Cited
US4146019A
Cited
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Cited
US4630598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-16 | 1991-05-18 | 1991-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-16 | 1995-05-18 | 1995-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-16 | 1999-05-18 | 1999-11-17 | $7700.00 | Window Closed / Lapsed |