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TISSUE REMOVAL DEVICE FOR USE WITH IMAGING DEVICES IN NEUROSURGICAL AND SPINAL SURGERY APPLICATIONS

  • US 20100152533A1
  • Filed: 02/20/2009
  • Published: 06/17/2010
  • Est. Priority Date: 12/16/2008
  • Status: Active Grant
First Claim
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1. A method of performing a neurosurgical procedure, comprising:

  • providing an imaging device;

    providing a tissue removal device comprising;

    a handpiece,an outer cannula having an outer cannula lumen, a proximal end, a distal end, and an outer cannula opening adjacent the distal end, wherein the opening defines a cutting edge for severing tissue,an inner cannula disposed in the outer cannula lumen and reciprocable within the outer cannula lumen, the inner cannula having an inner cannula lumen, a proximal end, a distal end, a cutting edge at the distal end, a living hinge, a cutting section, and a body section, with the hinge being located between the cutting section and the body section, wherein the cutting section is pivotable when the inner cannula reciprocates within the outer cannula lumen, anda tissue collector in fluid communication with the inner cannula lumen;

    positioning the imaging device relative to a target tissue associated with the patient'"'"'s neurological system such that the target tissue can be viewed with the imaging device and such that the imaging device and the target tissue define a space between the imaging device and the target tissue;

    positioning the outer cannula opening of the tissue removal device in the space such that the outer cannula opening is disposed proximate the target tissue;

    viewing the target tissue and the outer cannula of the tissue removal device with the imaging device; and

    reciprocating the inner cannula within the outer cannula lumen between a proximal position and a distal position, such that when the inner cannula is in the proximal position, the target tissue is received in the outer cannula opening, and when the inner cannula moves towards the distal position, the cutting section pivots and the received target tissue is severed from surrounding tissue.

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