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US5154164A Expired / Lapsed US ⏱️ 0.0 years remaining

Anchoring structure for endoscope cover

Assignee: Machida Endoscope Co Ltd
•
Filing: 1991-01-31
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Granted: 1992-10-13
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Expires: 2011-01-31
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Abstract

Abstract An anchoring structure for an endoscope cover comprising a cylindrical rigid cover composed of an elastic material, which is fitted to an endoscope to cover a front end rigid portion of the endoscope. A transparent window is arranged on a closed face formed on the front end of the rigid cover to face at least an observation port and an illuminating port, which are arranged on the top end of the endoscope. A bag-shaped covering member having a length covering at least an intermediate conduit portion of the endoscope is attached to a rear part of the endoscope. An anchoring concave portion is formed at a predetermined part of the intermediate conduit portion, a notched face is formed on the circumferential face of the top end rigid portion and an anchoring groove is formed on the circumferential face. Anchoring projections are formed at opposite positions on the inner circumferential face of the rigid cover, and the anchoring projections are fitted in the anchoring groove of the top end rigid portion to make it possible to attach the rigid cover to the front end rigid portion. The covering member is anchored in the anchoring concave portion of the intermediate conduit portion so that the covering member can be integrated with the intermediate conduit portion.

Inventors

  • 👤 Toshio Chikama

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 23:40
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/00142

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 239 words
In combination, an endoscope, an endoscope cover and anchoring structure comprising a cylindrical rigid cover composed of an elastic material, which is fitted to said endoscope to cover a front end rigid portion of the endoscope, the endoscope having a rear part, the cover having a transparent window arranged on a closed face formed on the front end of the rigid cover which faces at least an observation port and an illuminating port of the endoscope, said transparent window facing the front end of the endoscope, the cover also having a bag-shaped covering member having a length covering at least an intermediate conduit portion of the endoscope, which is attached to the rear part of the endoscope, an anchoring concave portion is formed on the intermediate conduit portion, said front end rigid portion having a cylindrical structure, a notched face is formed on an outer circumferential face of the cylindrical structure of the front end rigid portion and an anchoring groove is also formed on said circumferential face, anchoring projections are formed at opposite sides on an inner circumferential face of the rigid cover, said anchoring projections being fitted in the anchoring groove of the front end rigid portion to attach the rigid cover to the front end rigid portion, said covering member also being anchored in the anchoring concave portion of the intermediate conduit portion so that the covering member can be integrated with the intermediate conduit portion.
Claim 2
Dependent Claim 239 words
In combination, an endoscope, an endoscope cover and anchoring structure comprising a cylindrical rigid cover composed of an elastic material, which is fitted to said endoscope to cover a front end rigid portion of the endoscope, the endoscope having a rear part, the cover having a transparent window arranged on a closed face formed on the front end of the rigid cover which faces at least an observation port and an illuminating port of the endoscope, said transparent window facing the front end of the endoscope, the cover also having a bag-shaped covering member having a length covering at least an intermediate conduit portion of the endoscope, which is attached to the rear part of the endoscope, an anchoring concave portion is formed on the intermediate conduit portion, said front end rigid portion having a cylindrical structure, a notched face is formed on an outer circumferential face of the cylindrical structure of the front end rigid portion and an anchoring groove is also formed on said circumferential face, anchoring projections are formed at opposite sides on an inner circumferential face of the rigid cover, said anchoring projections being fitted in the anchoring groove of the front end rigid portion to attach the rigid cover to the front end rigid portion, said covering member also being anchored in the anchoring concave portion of the intermediate conduit portion so that the covering member can be integrated with the intermediate conduit portion.
Claim 3
Dependent Claim 15 words
The combination according to claim 1, wherein the anchoring concave portion is a cut groove.
Claim 4
Dependent Claim 22 words
The combination according to claim 1, wherein the anchoring concave portion is formed in the circumferential direction of the intermediate conduit portion.
Claim 5
Dependent Claim 15 words
The combination according to claim 3, wherein the anchoring concave portion is a cut groove.
Claim 6
Dependent Claim 22 words
The combination according to claim 1, wherein the anchoring concave portion is formed in the longitudinal direction of the intermediate conduit portion.
Claim 7
Dependent Claim 15 words
The combination according to claim 5, wherein the anchoring concave portion is a cut groove.
Claim 8
Dependent Claim 20 words
The combination according to claim 1, wherein an air-injecting opening is formed at the rear end of the covering member.

References Cited (Backward Citations)

US4579108A Cited
US4881810A Cited
US4867747A Cited
US4869238A Cited
US4877033A Cited
US4959058A Cited
US4991564A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-10-13 1996-04-13 1996-10-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-10-13 2000-04-13 2000-10-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-10-13 2004-04-13 2004-10-13 $7700.00 Window Closed / Lapsed

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