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Laparoscopic cannula

  • US 5,183,471 A
  • Filed: 01/24/1992
  • Issued: 02/02/1993
  • Est. Priority Date: 01/24/1992
  • Status: Expired due to Term
First Claim
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1. A cannula for use in laparoscopy, comprising a tubular member having a first opening at a distal end and second opening at a proximal end for enabling the longitudinal insertion through said tubular member of a first laparoscopic instrument, a first aperture being disposed on a side of said tubular member distally of said second opening, a second aperture being disposed on a substantially opposite side of said tubular member proximally of said first opening and distally of said first aperture, said first aperture and said second aperture defining a linear path for a second laparoscopic instrument, said linear path being oriented at an acute angle with respect to said tubular member.

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