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Visualization trocar

  • US 5,797,944 A
  • Filed: 09/12/1997
  • Issued: 08/25/1998
  • Est. Priority Date: 11/12/1992
  • Status: Expired due to Term
First Claim
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1. A trocar for endoscopic surgery, comprising:

  • a shaft having a distal end and a proximal segment having a cavity formed therein, the shaft having a longitudinal axis;

    a transparent puncturing head formed on the distal end of the shaft; and

    a blade embedded in the puncturing head, the blade having a flat blade surface defining a blade plane, and the blade is positioned such that the blade plane is parallel to the longitudinal axis;

    wherein a video display system may be operationally connected within the cavity formed in the proximal segment of the shaft for displaying the image of an object located beyond the puncturing head.

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