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Cannula interface

  • US 6,695,816 B2
  • Filed: 08/26/2002
  • Issued: 02/24/2004
  • Est. Priority Date: 07/02/1999
  • Status: Expired due to Fees
First Claim
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1. A cannula for receiving a detachable medical instrument, the cannula comprising:

  • an elongated insertion member having a proximal end with a first surface and a passage for receiving the detachable medical instrument, the passage extending along an axis from the proximal end through a distal end of the insertion member; and

    a clamping assembly disposed at the proximal end of the elongated insertion member to engage an engaging portion of the detachable medical instrument, the clamping assembly having a second surface axially spaced from the first surface of the elongated insertion member and a biasing member positioned to bias at least one of the first surface and the second surface axially toward each other along said axis and configured to permit the second surface to move axially along and rotate about said axis of the elongated insertion member to engage the engaging portion of the detachable medical instrument between the first surface and the second surface, wherein the biasing member is positioned between a moveable member and the first surface, such that axial movement of an actuator toward the first surface compresses the biasing member.

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