05226909 is referenced by 312 patents and cites 13 patents.

An atherectomy catheter includes a catheter body having a cylindrical housing at its distal end. The cylindrical housing includes an elongate cutting aperture on one side thereof and a mechanism for severing atheroma which enters within the opening. In a first embodiment, the cutting mechanism comprises a circular cutting blade which is advanced over an elongate guide member which defines a path for the blade. Use of the guide means helps assure that the cutting blade will not be lost from the housing during use. In a second embodiment, a rotatable helical cutting blade is mounted within the housing. In that particular embodiment, the helical cutting blade can serve as the guide member for the circular cutting blade.

Title
Atherectomy device having helical blade and blade guide
Application Number
405906
Publication Number
5226909
Application Date
November 4, 1992
Publication Date
July 13, 1993
Inventor
Richard L Mueller
Mountain View
CA, US
Michael Evans
Palo Alto
CA, US
Agent
Townsend and Townsend Khourie and Crew
Assignee
Devices for Vascular Intervention
CA, US
IPC
A61B 17/32
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