The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 29, 2009
Filed:
Jan. 24, 2003
Applicant:
Christophe Van Landuyt, London, GB;
Inventor:
Christophe Van Landuyt, London, GB;
Assignee:
Smiths Group Plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B28B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An epidural catheter has a closed, soft patient end region with a side opening. The catheter is formed from a two-layer extruded tube in which the outer layer is of a harder material than the inner layer. A heated pin is inserted in one end of the tube to expand its diameter. An annular grinding tool is then moved along the expanded region to remove the outer, hard layer in this region. The end of the tube is subsequently closed and the side opening is formed.