05250059 is referenced by 251 patents and cites 12 patents.

An atherectomy catheter comprises a flexible tube having a proximal end and a distal end, and a cutter housing secured to the proximal end. A spring tip nose cone is secured to a distal end of the cutter housing and comprises a relatively soft polymeric wall having a spring coil embedded therein. The spring tip nose cone has a controlled flexibility, generally being more flexible toward the distal tip. The spring coil inhibits collapse of the nose cone under the expected conditions of use, and the flexibility and non-collapsibility together assure that the nose cone can be introduced over a movable guide wire without substantial binding. Means may be provided for inhibiting loss of atheroma from the interior of the nose cone.

Title
Atherectomy catheter having flexible nose cone
Application Number
7/823905
Publication Number
5250059
Application Date
January 22, 1992
Publication Date
October 5, 1993
Inventor
Brian E Farley
Los Altos
CA, US
Michael A Evans
Palo Alto
CA, US
Brian A Glynn
Sunnyvale
CA, US
Bernard H Andreas
Fremont
CA, US
Agent
Townsend and Townsend Khourie and Crew
Assignee
Devices for Vascular Intervention
CA, US
IPC
A61B 17/32
View Original Source