Patent US1687119A successfully refreshed from Google Patents.
US4419987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser endoscope
Assignee: Olympus Corp
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Filing: 1980-12-08
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Granted: 1983-12-13
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Expires: 2000-12-08
Abstract
Abstract A laser endoscope has a distal end portion detachably fitted with a holder which can cover the distal end of a channel extending through the laser endoscope body in a liquid-tight state and whose distal end holds a glass cover. The detachable attachment of the holder to the distal end portion of the laser endoscope enables a single channel to be concurrently used not only as a laser guide channel but also as a forceps channel.
Inventors
- 👤 Hisao Ogiu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:31
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/273; A61B1/2736; A61B1/00064; A61B1/00071; A61B1/0008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
215 words
A laser endoscope comprising: an endoscope body having two ends; a distal end portion fixed to one end of the endoscope body, the distal end portion having internal screw threads formed therein: a control section fixed to the other end of the endoscope body; a channel extending through the distal end portion, endoscope body and control section and having a distal end; a holder which is detachably attached in the distal end portion, and, when attached in the distal end portion, covers the distal end of the channel in a liquid-tight state; and a glass cover which is so disposed in the holder so as to face the distal end of the channel when said holder is put to use by being attached to the distal end portion; said holder comprising a hollow cylindrical member having two ends, one end of which is fitted with the glass cover, and the other end of which is provided with external screw threads for engagement with the internal screw threads in the distal end portion; and said holder further comprising notches formed at the end thereof which is fitted with the glass cover to provide means for gripping the holder so that it can be rotated to disengage from the internal screw threads in the distal end portion.
Claim 2
Dependent Claim
215 words
A laser endoscope comprising: an endoscope body having two ends; a distal end portion fixed to one end of the endoscope body, the distal end portion having internal screw threads formed therein: a control section fixed to the other end of the endoscope body; a channel extending through the distal end portion, endoscope body and control section and having a distal end; a holder which is detachably attached in the distal end portion, and, when attached in the distal end portion, covers the distal end of the channel in a liquid-tight state; and a glass cover which is so disposed in the holder so as to face the distal end of the channel when said holder is put to use by being attached to the distal end portion; said holder comprising a hollow cylindrical member having two ends, one end of which is fitted with the glass cover, and the other end of which is provided with external screw threads for engagement with the internal screw threads in the distal end portion; and said holder further comprising notches formed at the end thereof which is fitted with the glass cover to provide means for gripping the holder so that it can be rotated to disengage from the internal screw threads in the distal end portion.
References Cited (Backward Citations)
US3896793A
Cited
US3937324A
Cited
US3858577A
Cited
US4273109A
Cited
JPS5384379A
Cited
US4279486A
Cited
GB2041559B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-12 | 1987-06-13 | 1987-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-12 | 1991-06-13 | 1991-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-12 | 1995-06-13 | 1995-12-13 | $7700.00 | Window Closed / Lapsed |