Vessel isolating retractor cannula and method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5993384
SERIAL NO

09200177

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a first portion with an axis approximately parallel to the axis of the cannula and a second portion with an axis at an angle to the axis of the cannula. The dissection cradle is located at the distal end of the second portion of the retractor, and may include two substantially parallel, spaced legs with the retractor shaped in a loop between and in a plane skewed relative to the axis of the legs, and with the loop directed away from the surgical tool. Thus, in operation, when the surgeon locates a vein and side branch of interest, the surgeon extends the retractor to cradle the vein in the dissection cradle. Once cradled, the retractor may be fully extended to urge the vein away from the axis of the cannula isolate the side branch for exposure to the surgical tool. In another embodiment, the cannula includes a sheath which encases the curved, resilient retractor at a first position to retain the retractor in substantially straight orientation, and which encases the retractor at a second position that allows the retractor to extend at an angle relative to the axis of the cannula.

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Patent Owner(s)

Patent OwnerAddress
MAQUET CARDIOVASCULAR LLC170 BAYTECH DRIVE SAN JOSE CA 95134

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baxter, Jeffrey W San Jose, CA 19 1649
Chang, Tenny Mountain View, CA 27 6941
Chin, Albert K Palo Alto, CA 299 28233
Davis, John W Mountain View, CA 88 3272
Gresl, Jr Charles San Francisco, CA 19 4377
Lunsford, John P San Carlos, CA 77 5219

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