04273128 is referenced by 305 patents and cites 6 patents.

A surgical instrument for the treatment of stenotic and occlusive coronary artery disease is described whereby the lumen of the coronary artery is longitudinally incised sub-epicardially through an area of narrowing or obstruction immediately whereafter dilation of the arterial lumen at the site of the stenotic blockage and arterial incision is effected by expansion under pressure of a balloon passed to the site through the artery. This coronary artery cutting and dilating instrument has a flexible probe at the distal end for guidance through the coronary artery, followed, in succession, by one or more radially extending knife blades for making the coronary incision and an inflatable balloon for dilating the stenotic artery zone immediately after the incision. A flexible inflating and control tube extends from the balloon to the proximal end, whereat a surgical syringe is connectable to effect hydraulic inflation of the balloon. The proximal tubular extension of the instrument is either short for use in exposed heart surgery on the beating heart by passage through the coronary artery beneath a purse-string incision made in the epicardium overlying the affected artery within a few centimeters from the blockage, or comparatively long for application through a catheter introduced via a peripheral artery.

Title
Coronary cutting and dilating instrument
Application Number
6/111807
Publication Number
4273128
Application Date
January 14, 1980
Publication Date
June 16, 1981
Inventor
Banning G Lary
6225 SW. 117th Ter., Miami, 33156
FL, US
Agent
Ernest H Schmidt
IPC
A61M 29/02
A61B 17/32
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