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Insulated laparoscopic grasper with removable shaft

  • US 5,578,052 A
  • Filed: 10/03/1994
  • Issued: 11/26/1996
  • Est. Priority Date: 10/27/1992
  • Status: Expired due to Fees
First Claim
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1. A monopolar laparoscopic electrocautery laparoscope surgical instrument having an insulated removable shaft, which comprises:

  • a rotatable combination shaft having a proximal end and a distal end;

    said rotatable shaft combination comprising;

    an outer hollow shaft having at least one slotted opening in its wall for allowing said shaft to be cleaned thoroughly after use;

    an inner shaft slidably positioned axially in said outer hollow shaft;

    grasping means at said distal end of said inner shaft;

    anchor means at said proximal end of said inner shaft;

    a removable and disposable shaft cover covering and insulating the body of said shaft combination other than said grasping means for preventing electrical arcing when the instrument is used as a cauterizer during use;

    release means on said instrument for allowing said shaft combination and said removable and disposable shaft cover to be removed from said instrument for cleaning said shaft combination and for replacing said removable and disposable shaft cover with a new shaft cover;

    a pair of distal and proximal squeeze handles pivotally secured together;

    means on said handles and said instrument for receiving an electric cord and transmitting electric current to said grasping means on said distal end of said inner shaft;

    means on said proximal handle for releasably securing said anchor means at said proximal end of said inner shaft;

    said pair of squeeze handles, said shaft release means, and said housing being fabricated from non-electrically conductive material for protection against electric shock whenever electric current is passed through said instrument.

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