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Apparatus of a spinning type of resectoscope for prostatectomy

  • US 5,133,713 A
  • Filed: 03/30/1990
  • Issued: 07/28/1992
  • Est. Priority Date: 03/27/1990
  • Status: Expired due to Fees
First Claim
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1. A spinning type of resectoscope for prostatectomy, comprising:

  • power transmission means for transmitting rotational motion;

    a motor, operatively engaged with said power transmission means;

    a resectoscope sheath including an outer tube having a first and a second end with fluid supply means communicating to an interior thereof proximate said outer tube first end;

    a tube electrode, having both an inner and an outer surface, housed coaxially inside said outer tube so as to define an annular space therebetween, said tube electrode being operatively engaged with said power transmission means, proximate said first end, so as to allow said tube electrode to rotate relative to said resectoscope sheath when said motor is activated;

    rotary cutting means attached to an end of said tube electrode proximate said outer tube second end and extending in a direction away from said outer tube first end so as to extend beyond said outer tube, a first power source being electrically connected to said rotary cutting means by said tube electrode; and

    a hand grip enclosing said motor and power transmission means and containing a switch operatively connected to said motor so as to control an on/off state of said motor, a second electrical power source being electrically connected to said motor;

    wherein said tube electrode inner surface is coated with teflon and said tube electrode outer surface is wrapped with a plastic shrinkage tube.

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