Apparatus and method to obtain arterial biopsies

Details Apparatus and method to obtain arterial biopsies Apparatus and method to obtain arterial biopsies

A - Human Necessities

61

B

A61B 10/00 (2006.01) A61M 25/00 (2006.01)

Patent

CA 2136966

An arterial biopsy catheter (10) for obtaining a biopsy sample from the inner layers of an artery includes an outer tube (16) and an inner tube (22) slidingly mounted within the outer tube (16). The inner tube (22) is formed with a closed distal end (58) having a beveled opening (60). The outer tube (16) is formed with an open distal end having a sharpened edge (40) to cut arterial material (76) in contact with the beveled opening (60) by sliding the outer tube (16) over the inner tube (22). The inner tube (22) and outer tube (16) are attached to handles (18, 24). In use, a vacuum is applied through the inside diameter of the inner tube (22) to the beveled opening (60), to draw arterial material (76) into contact with the beveled opening (60). The outer tube (16) is then manipulated to sever the arterial material (76) to form the biopsy sample.

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