US4765313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Objective part replaceable endoscope tip
Assignee: Olympus Corp
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Filing: 1987-07-27
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Granted: 1988-08-23
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Expires: 2007-07-27
Abstract
Abstract An endoscope tip is fittable with either (a) a first kind of objective part, having an objective optical system provided with a rotary adjusting mechanism or (b) a second kind of objective part having an objective optical system provided with no rotary adjusting mechanism. A non-rotary connecting mechanism is formed for the first kind of objective part and a rotary connecting mechanism is formed for the second kind of objective part so that the connecting mechanism may not loosen when there is a rotary adjustment of the objective in order to focus the same.
Inventors
- 👤 Masahiro Kumakura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:00
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/00163; A61B1/00188
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
109 words
An objective part replaceable endoscope tip comprising: either one of a first kind of objective part having an objective optical system provided with a rotary adjustment mechanism by a rotating operation, and a second kind of objective part having an objective optical system having no rotary adjusting mechanism; and an insertable part of the endoscope having a tip; an image transmitting means being inserted through said insertable part; a non-rotary fitting part being in said tip, said non-rotary fitting part being for said first kind of objective part; and a rotary fitting part being in said tip, said rotary fitting part being for said second kind of objective part.
Claim 2
Dependent Claim
109 words
An objective part replaceable endoscope tip comprising: either one of a first kind of objective part having an objective optical system provided with a rotary adjustment mechanism by a rotating operation, and a second kind of objective part having an objective optical system having no rotary adjusting mechanism; and an insertable part of the endoscope having a tip; an image transmitting means being inserted through said insertable part; a non-rotary fitting part being in said tip, said non-rotary fitting part being for said first kind of objective part; and a rotary fitting part being in said tip, said rotary fitting part being for said second kind of objective part.
Claim 3
Dependent Claim
27 words
An objective part replaceable endoscope tip according to claim 1 wherein said rotary adjusting mechanism of the first kind of objective part forms a focus adjusting mechanism.
Claim 4
Dependent Claim
52 words
An objective part replaceable endoscope tip according to claim 2 wherein said focus adjusting mechanism of the first kind of objective part being moved in the optical axial direction by a sliding ring fitted with a part of said objective optical system through a cam pin by rotation of a rotatable ring.
Claim 5
Dependent Claim
29 words
An objective part replaceable endoscope tip according to claim 1 wherein said first kind of objective part forms a fitting part fittable with a hood at the front end.
Claim 6
Dependent Claim
31 words
An objective part replaceable endoscope tip according to claim 1 wherein said first kind of objective part is fittable with a visual field angle converting optical adapter at a front end.
Claim 7
Dependent Claim
30 words
An objective part replaceable endoscope tip according to claim 1 wherein said rotary fitting part is a screw part screwed to a screw of said second kind of objective part.
Claim 8
Dependent Claim
46 words
An objective part replaceable endoscope tip according to claim 1 wherein said non-rotary fitting part is formed of a mouthpiece fitting a ring part at a rear end of said first kind of objective part and a fixing means from the side of the fitting part.
Claim 9
Dependent Claim
36 words
An objective part replaceable endoscope tip according to claim 7 wherein said rotary fitting part is formed of a screw part made somewhat small in the diameter on a front end side of said mouthpiece part.
Claim 10
Dependent Claim
74 words
An objective part replaceable endoscope tip according to claim 1 wherein a flexible fiber bundle forming said image transmitting means is fixed on a front end side with a ring-shaped holding member fitted between a ring-shaped receiving member fixed on an outer periphery of said front end and having a screw part formed on the other periphery and a mouthpiece part forming said non-rotary fitting part and a fixing screw means from a side.
Claim 11
Dependent Claim
32 words
An objective part replaceable endoscope tip according to claim 9 wherein said ring-shaped holding member is expanded in diameter on the front side so as to be fittable from the front side.
Claim 12
Dependent Claim
46 words
An objective part replaceable endoscope tip according to claim 8 wherein said mouthpiece part forms a fitting part fitting the small diameter part of the ring part at a rear end of said first kind of objective part on the front side of said screw part.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-23 | 1992-02-22 | 1992-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-23 | 1996-02-22 | 1996-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-23 | 2000-02-22 | 2000-08-23 | $7700.00 | Window Closed / Lapsed |