Method and apparatus for anchoring laparoscopic instruments

a technology for laparoscopic instruments and anchoring devices, applied in the field of improved anchors, can solve the problems of requiring the twisting of screw threads into place, affecting the stability of the anchor, and the cost of fabricating cannulas, so as to facilitate the placement and removal of low insertion force and low profil
US20070225643A1Inactive Publication Date: 2007-09-27COVIDIEN AG
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
COVIDIEN AG
Publication Date
2007-09-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

A balloon anchor provides for the anchoring of a surgical instrument, such as conventional trocar sheath, within a puncture opening formed by a trocar. When used on a trocar sheath, the anchor is secured to the smooth outer surface of the sheath for extension through the puncture opening as the trocar within the sheath forms the opening. Adhesive or mechanical means are provided to secure the balloon the instrument. No modification to the structure of the instrument is required. Once in place within the opening, the balloon is inflated to the interior of the tissue to anchor the instrument in place. Certain embodiments also provide for inflation of the balloon within and / or to the exterior of the opening.
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Description

BACKGROUND OF THE INVENTION

[0001] The present invention relates to an improved anchor for securing laparoscopic instruments within puncture openings during surgery. In its more specific aspects, the invention is concerned with a balloon anchor adapted to be secured to the outside surface of virtually any laparoscopic instrument, without the necessity of modifying the structure of the instrument.

[0002] Laparoscopic surgery provides a minimally invasive approach to a wide variety of surgical procedures in, for example, the abdominal and thoracic cavities. In a minimally invasive approach, small incisions are made to provide access for instruments needed to perform surgery. The instruments, such as trocars, endoscopes, clip appliers, cautery devices and other tools, are commonly inserted through these small incisions using cannulas which are adapted to provide a pressure seal when using pneumoperitoneum. It is desirable to secure or anchor these cannulas into position in the incision...

Claims

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