Patent · US Expired

Micro catheter shaft

US6030369A · kind A · utility

200Cited by

23References

18Claims

0Family size

Assignee

Target Therapeutics, Inc. · US

Inventors

Erik T. Engelson · Menlo Park, US
Mark Carter · Houston, US

Key dates

Filing date	Jul 3, 1997
Grant date	Feb 29, 2000
Priority date	—
Expiry date	Jul 3, 2017

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2025/0042
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

This is a catheter having a shaft, the layers of which are coextruded in an intermittently changing pattern that produces particular mechanical and frictional properties in the structure. The outer layer of the catheter shaft is comprised of a material which has greater flexibility than the material which comprises the inner layer of the catheter shaft. The stiffer material which comprises the inner layer has frictional properties which facilitate guidewire passage and control. The invention includes the substituent shaft per se and a method of making the shaft.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.