Source: http://www.google.com/patents/US4538610?dq=7069184
Timestamp: 2014-07-14 14:57:55
Document Index: 788517637

Matched Legal Cases: ['art 5', 'art 6', 'art 7', 'art 7', 'art 15', 'art 15', 'art 17', 'art 17', 'art 18', 'art 6', 'art 6']

Patent US4538610 - Resectoscope - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsA 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...http://www.google.com/patents/US4538610?utm_source=gb-gplus-sharePatent US4538610 - ResectoscopeAdvanced Patent SearchPublication numberUS4538610 APublication typeGrantApplication numberUS 06/454,653Publication dateSep 3, 1985Filing dateDec 30, 1982Priority dateJan 14, 1982Fee statusPaidAlso published asDE3373265D1, EP0084419A2, EP0084419A3, EP0084419B1Publication number06454653, 454653, US 4538610 A, US 4538610A, US-A-4538610, US4538610 A, US4538610AInventorsTetsumaru KubotaOriginal AssigneeOlympus Optical Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (2), Referenced by (23), Classifications (14), Legal Events (4) External Links: USPTO, USPTO Assignment, EspacenetResectoscopeUS 4538610 AAbstract 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.
I claim: 1. 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. 2. A resectoscope according to claim 1, characterized in that said plug receiving means extend from an engaging hole in the electrode fixing member.
BACKGROUND OF THE INVENTION This invention relates to a resectoscope which is inserted into a bladder through the urethra and has an electrode projected on the tip side through which a high frequency electric current can be passed while an affected part is being sighted so that the affected part may be resected.
BRIEF SUMMARY OF THE INVENTION An object of the present invention is to provide a resectoscope wherein an electrode at the rear end can be electrically connected with an electrode cord at the tip without failing the contact.
BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 3 relate to a first embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION In FIGS. 1 to 3, a resectoscope 1 of the first embodiment of the present invention is formed of a scope 2, a resectoscope handle 3 to which this scope 2 is removably fitted and a resectoscope sheath 4 removably fitted to this resectoscope handle 3. The scope 2 comprises an eyepiece part 5 and a scope inserting part 6. This scope 2 and resectoscope handle 3 are removably connected with each other through a connecting part 7 provided in the resectoscope handle 3. The resectoscope handle 3 connects the above mentioned connecting part 7 and a forward fixed member 8 with each other through a guide pipe 9 and guide shaft 10. A movable member 11 is slidably fitted to the guide pipe 9 and guide shaft 10. A finger hanger 12 is fitted to this movable member 11. This movable member 11 and fixed member 8 are connected with each other, for example, through a plate spring 14. Also, the resectoscope handle 3 and resectoscope sheath 4 are removably connected with each other through a connecting part 15 provided on the resectoscope sheath 4. The resectoscope sheath 4 comprises the connecting part 15 with the resectoscope handle 3, a resectoscope sheath body 16 and a resectoscope sheath inserting part 17. The resectoscope sheath inserting part 17 is formed of an outer tube 18 formed of metal such as brass or stainless steel and an insulated tip part 18a formed of such insulating member as an epoxy resin or ceramics and fitted to the tip of the outer tube 18. The scope inserting part 6 is inserted through the guide pipe 9 of the resectoscope handle 3 in an internal path of this outer tube 18. An electrode 19 is inserted as provided parallelly with this scope inserting part 6. This electrode 19 has, for example, a loop-shaped electrode tip 19a provided to project at the tip so as to be able to resect an affected part (prostate) as heated by passing an electric current.
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