Unilink, Inc.

Other

3M Innovative Properties Company

Unilink Ab

Hakan A Rohman

Anders Berggren

Leif T Ostrup

Rafn Ragnarsson

Floyd L Foslien

Leif Strup

The invention pertains to a method for expanding a vessel during a surgical procedure. The method utilizes a device comprising an expandable elastic portion and a flexible pipe portion. The pipe portion is situated at an angle relative to the elastic portion. The method includes the steps of cutting a stab incision in the vessel, inserting the expandable elastic portion into the vessel, and expanding the elastic portion.

Anastomosis preparation technique with easily insertable member

Device at artificial joints

This invention provides a surgical method for minimizing constrictions in a vessel in a joint area at the site of an anastomotic ring placement. The method includes inserting an upper part of a hollow, T-shaped member through an incision in a vessel. The T-shaped member includes a vertical part comprising a pipe or hose and an upper part which is more elastic than the vertical part and consists essentially of an expansible elongated balloon in an unexpanded state. The elongated balloon is an open communication with the hollow vertical part and can be expanded by pressurizing with a pressure medium through the vertical part into the upper part so as to expand the upper part and thereby substantially uniformly deform a portion of the joined area of the vessel. The method also includes depressurizing the upper part by removing the pressure medium and allowing the upper part to return to its unexpanded state and then removing the upper part from the vessel prior to attachment of an anastomotic ring to the vessel.

Anastomosis preparation technique

In surgery, especially in microsurgery, anastomosis, consumes a considerable part of the time. In order to carry out anastomosis rapidly and reliably a surgical instrument (1) according to the invention is provided with two clamping means (2,3), each being arranged to support a fastening means (5a,5b) consisting of a ring with axially directed pins (6). The clamping means (2,3) are rotatably connected to the instrument and can be actuated by a mechanism (i.a. 7) to be turned towards each other to join the fastening means (5a,5b) and vessels or organs (50,51) threaded onto these. The invention relates to fastening means (5a,5b) shaped in such a manner that they are retained in the clamping means (2,3) of the instrument until the joining is accomplished.

Annular fastening means

In surgery, especially in microsurgery, the joining of blood vessels or tubular organs, anastomosis, consumes a considerable part of the surgical time. This invention provides fasteners that are shaped in such a manner that they are retained in a novel clamping device until the joining is accomplished. The fasteners comprise at least two couplable rings having axially directed pins and intermediate holes distributed about their centers, and a shoulder portion formed along the periphery of at least one of the rings for fitting at least one of the rings into the clamping device.

Method for performing an anastomosis

Surgical instrument for performing anastomosis

In surgery, especially in microsurgery, the joining of blood vessel ends or other tubular organs, anastomosis, consumes a considerable part of the time. In order to carry out anastomosis rapidly and reliably a surgical instrument (1) according to the invention is provided with two clamping members (2,3), each being arranged to support a fastening structure (5a,5b) comprising a ring with axially directed pins (6). The clamping members (2,3) are rotatably connected to the instrument and can be actuated by a mechanism (i.a. 7) to be turned towards each other to join the fastening structure (5a,5b) and vessels or organs (50,51) threaded onto these. The invention also relates to fastening devices (5a,5b) shaped in such a manner that they are retained in the clamping means (2,3) of the instrument until the joining has taken place.

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Mantorp, Sweden

Hakan A Rohman