05972019 is referenced by 345 patents and cites 45 patents.

This is a medical device. In particular, it is a surgical device usually delivered through an intravascular catheter. It may be used in several ways. It may, for instance, be used to open a clear passageway adjacent thrombus to allow both blood and medication to bypass the clot. It may be used to pierce and to remove thrombus. These thrombus are often found in tortuous vasculature. The device includes several sections. The device has a core element, typically a core wire. Placed around the distal end of the core element is a collapsible but preferably self expanding cage assembly. The cage assembly is preferably radio-opaque. The proximal end of the cage is typically is affixed to an actuator in such a way as to allow expansion of the cage after deployment. The cage assembly may have a generally conical distal or "trailing" portion when expanded and also a proximal section. The cage assembly may be used for collecting emboli or for displacing them to allow blood flow to resume. The proximal section may have various uses, e.g., for centering the collector assembly in the vascular lumen or for gathering larger amounts of the targeted clot or to act as a passageway for fluid flow. The assembly further may have an actuator which permits or causes the collector assembly to expand after deployment.

Title
Mechanical clot treatment device
Application Number
701155
Publication Number
5972019
Application Date
June 5, 1997
Publication Date
October 26, 1999
Inventor
Rose Y Wong
San Francisco
CA, US
Kim Nguyen
San Jose
CA, US
Gene Samson
Milpitas
CA, US
Erik T Engelson
Menlo Park
CA, US
Agent
Morrison & Foerster
Assignee
Target Therapeutics
CA, US
IPC
A61M 29/00
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