US5964740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment accessory for an endoscope
Assignee: Pentax Corp
•
Filing: 1997-04-07
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Granted: 1999-10-12
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Expires: 2017-04-07
Abstract
Abstract An injector instrument and a forceps tap for use with an endoscope. The injector instrument is provided with at least one needle formed of a synthetic resin and is further provided with a variety of stopper devices which limit the amount that the needle can extend from the endoscope. The injector instrument may be formed having a curved or easy-to-bend portion. The forceps tap is provided at the entrance to a forceps channel of the endoscope to accommodate at lease two injector instruments or other treatment accessories such that the treatment accessories can be inserted in a single forceps channel and such that substances (such as internal fluids from a human cavity) are held inside the forceps channel.
Inventors
- 👤 Teruo Ouchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:33
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61M25/0082; A61M25/0084; A61B; A61B17/00; A61B17/34; A61B17/3478; A61B17/22; A61B2017/22072; A61B2017/22074; A61B2017/22077; A61B17/32; A61B17/320068; A61B2017/320084; A61M2025/0089; A61M2025/0096; A61M25/0021; A61M25/0041; A61M25/0069; A61M25/008; A61M25/01; A61M25/06
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
56 words
An injector instrument for insertion into a forceps channel of an endoscope, said injector instrument comprising: a flexible fluid supply tube; and a needle portion formed at a distal end of said fluid supply tube, said needle portion being formed from a material having a hardness within a range of Rockwell hardnesses of R50 to R129.
Claim 2
Dependent Claim
56 words
An injector instrument for insertion into a forceps channel of an endoscope, said injector instrument comprising: a flexible fluid supply tube; and a needle portion formed at a distal end of said fluid supply tube, said needle portion being formed from a material having a hardness within a range of Rockwell hardnesses of R50 to R129.
Claim 3
Dependent Claim
18 words
The injector instrument according to claim 1, wherein said fluid supply tube and needle portion are integrally formed.
Claim 4
Dependent Claim
16 words
The injector instrument according to claim 1, said needle portion including an obliquely cut sharp tip.
Claim 5
Dependent Claim
18 words
The injector instrument according to claim 1, said needle portion including a sharp tip having two slanted planes.
Claim 6
Dependent Claim
39 words
The injector instrument according to claim 1, further comprising a mandrel member that is inserted into said fluid supply tube and said needle portion during insertion of said fluid supply tube and said needle portion into said forceps channel.
Claim 7
Dependent Claim
26 words
The injector instrument according to claim 1, wherein said hardness of said needle portion is greater than a hardness of a wall of said forceps channel.
Claim 8
Dependent Claim
23 words
The injector instrument according to claim 1, said needle portion including a stop element spaced from a distal end of said needle portion.
Claim 9
Dependent Claim
14 words
The injector instrument according to claim 1, said needle portion being a flexible resin.
Claim 10
Dependent Claim
25 words
The injector instrument according to claim 1, further comprising a cover tube, said fluid supply tube and needle portion being inserted into said cover tube.
Claim 11
Dependent Claim
35 words
The injector instrument according to claim 9, further comprising a detent element on said fluid supply tube, said detent element holding said needle portion in at least one position with respect to said cover tube.
Claim 12
Dependent Claim
27 words
The injector instrument according to claim 10, said detent element including an O-ring on said fluid supply tube and at least one groove on said cover tube.
Claim 13
Dependent Claim
38 words
The injector instrument according to claim 11, said at least one groove comprising two grooves spaced a predetermined distance apart, the needle portion having a movable distance within said cover tube which is less than said predetermined distance.
Claim 14
Dependent Claim
27 words
The injector instrument according to claim 10, said detent element including an O-ring on said cover tube and at least one groove on said fluid supply tube.
Claim 15
Dependent Claim
34 words
The injector instrument according to claim 9, further comprising a detent element on said cover tube, said detent element holding said needle portion in at least one position with respect to said cover tube.
Claim 16
Dependent Claim
23 words
The injector instrument according to claim 9, wherein at least two fluid supply tubes and needle portions are inserted into said cover tube.
Claim 17
Dependent Claim
15 words
The injector instrument according to claim 9, wherein said cover tube is a coiled wire.
Claim 18
Dependent Claim
21 words
The injector instrument according to claim 16, further comprising a metal tip portion at the distal end of said coiled wire.
Claim 19
Dependent Claim
24 words
The injector instrument according to claim 9, further comprising a manipulation element, said manipulation element moving said fluid supply tube within said cover tube.
Claim 20
Dependent Claim
39 words
The injector instrument according to claim 9, further comprising a mandrel member that is inserted into said fluid supply tube and said needle portion during insertion of said fluid supply tube and said needle portion into said cover tube.
Claim 21
Dependent Claim
33 words
The injector instrument according to claim 1, said fluid supply tube being formed to have a curved portion at a distal end portion when said fluid supply tube is in a neutral state.
Claim 22
Dependent Claim
29 words
The injector instrument according to claim 1, wherein said forceps channel is made of a material having a harnesses within a range of Shore hardnesses of D41 to D70.
References Cited (Backward Citations)
US4211214A
Cited
US4222380A
Cited
JPS6019682A
Cited
US4857057A
Cited
JPH0216763A
Cited
JPH0315081A
Cited
JPH0332327A
Cited
US5348545A
Cited
JPH0751371A
Cited
EP0704189A1
Cited
US5601588A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-10-11 | 2003-04-12 | 2003-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-10-11 | 2007-04-12 | 2007-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-10-11 | 2011-04-12 | 2011-10-12 | $7700.00 | Window Closed / Lapsed |