Apparatus of a spinning type of resectoscope for prostatectomy
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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Abstract
An apparatus of a new type of resectoscope for prostatectomy essentially comprising an electrical driving system which is connected to a replaceable high resistivity electrotome, or a screw thread cutting-knife, and a tube-electrode to achieve the spinning-type of resection for prostate or bladder tumor. A DC-motor and a transmission-gear set are mounted within a hand grip. Other devices, such as the resectoscope sheath, telescope universal electro-surgical unit, optical light source, and universal light guide cable may be connected to this apparatus. The resectoscope provides a high speed operation, safety, effectiveness, and convenience.
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Citations
17 Claims
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1. A spinning type of resectoscope for prostatectomy, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A spinning type of resectoscope for prostatectomy, comprising:
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a power transmission means for transmitting rotational motion; a motor, operatively engaged with said power transmission means; a hand grip enclosing said motor and power transmission means; a resectoscope sheath disengageably mounted to said handgrip, said sheath having a first and a second end; a tube electrode mounted to said handgrip and being operatively engaged with said power transmission means proximate said sheath first end, said tube electrode being adapted to be inserted coaxially within said sheath so as to define an annular space therebetween; rotary cutting means; a cutting loop holder disposed between and connected to said cutting means and said tube electrode proximate said sheath second end, said cutting means extending away form said sheath first end so as to extend outside of said sheath whenever said tube electrode is inserted within said sheath; and a first power source electrically connected to said rotary cutting means by said tube electrode and said cutting loop holder, wherein said hand grip further includes a switch operatively connected to said motor so as to control an on/off state of said motor and a second electrical power source electrically connected to said motor.
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Specification