US4538610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resectoscope
Assignee: Olympus Corp
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Filing: 1982-12-30
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Granted: 1985-09-03
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Expires: 2002-12-30
Abstract
Abstract A resectoscope comprising a resecting sheath, an observing scope positioned in the sheath and an electrode having a forward and rear end positioned in the sheath. An electrode fixing member comprising an electrically conductive flexible fixing portion is provided which has a slit therein for receiving the rear end of the electrode. Electrically insulating pressing means press the flexible fixing portion into engagement with the electrode and an electrical plug receiving member with an opening therein is electrically connected to the fixing portion for receiving an electrical plug in the opening and connecting the plug to the electrode through the fixing portion. An electrically insulating moving member surrounds the fixing portion, the movable member being movable with respect to the sheath such that the movement of the movable member moves the fixing portion and the electrode fixed therein whereby the front portion of the electrode is extended out of the sheath.
Inventors
- 👤 Tetsumaru Kubota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:41
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/012; A61B1/018; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/149; A61B17/00; A61B17/34; A61B2017/347; A61B2018/00053; A61B2018/00184; A61B2018/00196
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
188 words
A resectoscope comprising: (a) a resecting sheath insertable in a body; (b) observing scope means positioned in said sheath for observing an affected portion of the body; (c) electrode means having a forward end and rear end and positioned in said sheath for resecting the observed affected portion by a high frequency electrical current applied thereto by said forward end; (d) electrode fixing means comprising an electrically conductive resilient fixing member having a slit therein for receiving the rear end of said electrode means, electrically insulating pressing means for pressing said resilient fixing member into engagement with said electrode means, and electrical plug receiving means with an opening therein, electrically connected to said fixing member, for receiving an electrical plug in the opening therein and electrically connecting the plug to said electrode means through said fixing member; and (e) electrically insulating movable means surrounding said fixing member, said movable means being movable with respect to said sheath such that the movement of said movable means moves said fixing member and said electrode means fixed therein, whereby the forward end of said electrode means extends out of said sheath.
Claim 2
Dependent Claim
188 words
A resectoscope comprising: (a) a resecting sheath insertable in a body; (b) observing scope means positioned in said sheath for observing an affected portion of the body; (c) electrode means having a forward end and rear end and positioned in said sheath for resecting the observed affected portion by a high frequency electrical current applied thereto by said forward end; (d) electrode fixing means comprising an electrically conductive resilient fixing member having a slit therein for receiving the rear end of said electrode means, electrically insulating pressing means for pressing said resilient fixing member into engagement with said electrode means, and electrical plug receiving means with an opening therein, electrically connected to said fixing member, for receiving an electrical plug in the opening therein and electrically connecting the plug to said electrode means through said fixing member; and (e) electrically insulating movable means surrounding said fixing member, said movable means being movable with respect to said sheath such that the movement of said movable means moves said fixing member and said electrode means fixed therein, whereby the forward end of said electrode means extends out of said sheath.
Claim 3
Dependent Claim
23 words
A resectoscope according to claim 1, characterized in that said plug receiving means extend from an engaging hole in the electrode fixing member.
Claim 4
Dependent Claim
40 words
A resectoscope according to claim 1, characterized in that said plug receiving means is located on the side of said movable means, said receiving means passing through a hole in said movable means and extending into said electrode fixing member.
Claim 5
Dependent Claim
21 words
A resectoscope according to claim 1, characterized in that said plug receiving means is formed integrally with the electrode fixing member.
Claim 6
Dependent Claim
41 words
A resectoscope according to claim 1, characterized in that said pressing means has an insulating grip and a pressing rod advanced and retreated through an opening in said movable means, said opening facing the pressed surface of the electrode fixing member.
Claim 7
Dependent Claim
36 words
A resectoscope according to claim 1, characterized in that said pressing means has a pressing tube adapted to be advanced and retracted and an insulated grip connected to said tube, for advancing and retracting said tube.
References Cited (Backward Citations)
US2487502A
Cited
US4149538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-02 | 1989-03-04 | 1989-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-02 | 1993-03-04 | 1993-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-02 | 1997-03-04 | 1997-09-03 | $7700.00 | Window Closed / Lapsed |