Patent US4332242A successfully refreshed from Google Patents.
US4332242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guide tube assembly
Assignee: Machida Endoscope Co Ltd
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Filing: 1980-03-31
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Granted: 1982-06-01
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Expires: 2000-03-31
Abstract
Abstract A guide tube assembly is disclosed which serves both as a guide tube for an endoscope and a suction tube for anesthesia. The guide tube assembly comprises a tube, said tube being made of a porous fluoric resin on which a fluorocarbon elastomer is coated for a sealing material, a mouthpiece which is a body of revolution, said mouthpiece comprising a connector portion for holding the tube, an extended portion which spreads from the connector portion and a mouthpiece portion. By these constructions, the assembly can be freely curved by the endoscope and effectively serves both as the guide tube for the endoscope and the anesthetic suction tube.
Inventors
- 👤 Toshio Chikama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:00
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/08; A61M16/0816; A61B; A61B1/00; A61B1/00147; A61B1/00154; A61B5/00; A61B5/08; A61B5/097; A61M16/04; A61M16/0488; A61M16/049
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
In combination, an endoscope and a guide tube assembly, said guide tube assembly comprising a tube, said tube being made of a porous fluoric resin and a fluorocarbon elastomer coated on said porous fluoric resin as a sealing material, said guide tube further comprising a mouthpiece which is formed as a surface of revolution comprising a connector portion for holding the tube, an extended portion which spreads from the connector portion and a mouthpiece portion, and at least one suction aperture being provided at the extended portion of the mouthpiece, wherein the surface of the mouthpiece portion is tapered, said endoscope passing through said tube, said tube formed of an inner surface of low friction.
Claim 2
Dependent Claim
115 words
In combination, an endoscope and a guide tube assembly, said guide tube assembly comprising a tube, said tube being made of a porous fluoric resin and a fluorocarbon elastomer coated on said porous fluoric resin as a sealing material, said guide tube further comprising a mouthpiece which is formed as a surface of revolution comprising a connector portion for holding the tube, an extended portion which spreads from the connector portion and a mouthpiece portion, and at least one suction aperture being provided at the extended portion of the mouthpiece, wherein the surface of the mouthpiece portion is tapered, said endoscope passing through said tube, said tube formed of an inner surface of low friction.
References Cited (Backward Citations)
US2607342A
Cited
US3667781A
Cited
US3805770A
Cited
US3774616A
Cited
US3963856A
Cited
US4082893A
Cited
DE2903049A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-31 | 1985-11-30 | 1986-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-31 | 1989-11-30 | 1990-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-31 | 1993-11-30 | 1994-06-01 | $7700.00 | Window Closed / Lapsed |