Method and apparatus for reducing blockage in body channels

Details Method and apparatus for reducing blockage in body channels Method and apparatus for reducing blockage in body channels

A - Human Necessities

61

B

128/113, 327/1.2

A61B 17/22 (2006.01) A61B 18/24 (2006.01)

Patent

CA 1314309

- 24 - ABSTRACT OF DISCLOSURE An instrument for removing an obstruction in an internal body channel comprises an elongated catheter body adapted for insertion into a body channel having a first lumen throughout its length. An elongated guide and laser transmission conduit extends through the lumen of said catheter body and is movable therein so that its distal end can be extendable beyond the distal end of the catheter body. The proximal end of the movable conduit is connected to a controlled source of laser energy. A treatment element is provided at the distal end of the catheter body for further reducing the channel obstruction following preliminary penetration thereof by the movable laser transmission conduit. The treatment element may be a fixed laser transmission conduit which terminates at the end of the catheter body or a dilatation balloon near its distal end. In method steps utilizing the instrument, the movable conduit is positioned near a channel obstruction to enlarge a passage through and then serves to guide the catheter body into position so as to further enlarge or remove the obstruction using its treatment element.

555432

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