Patent ID: 6135977
Filing Date: 2000-10-24
Classification: A61B

Abstract:
A device with fluid jets for breaking apart tissue or other material in a biological or synthetic body vessel or cavity comprising:a. a tubular member having a proximal end and a distal end, having a plurality of passages including a first passage and a second passage extending along the length thereof, each passage with a proximal end and a distal end, each passage providing communication between said proximal end and said distal end;b. said first passage comprising tubular means for carrying a flow of high pressure fluid from said proximal end to said distal end, the distal portion of said tubular means having at least two orifices;c. said orifice(s) forming fluid jet(s) from the flow of high pressure fluid, at least one of the fluid jets being directed by said orifice(s) to impinge upon the tissue;d. at least one of said orifices directing at least one of the fluid jets in a direction which is largely distal to said distal end of said first passage;e. said proximal end of said first passage having means to connect to a high pressure fluid source which drives a flow of fluid into said first passage;f. said second passage provides for passage of fluid between said distal end and said proximal end, said distal end of said second passage having an opening; andg. at least one of said orifices directing at least one fluid jet emanating from said distal end of said tubular means to impinge on said opening in said distal end of said second passage.