Title:
APPARATUS AND METHOD FOR CLOSED-LOOP CONTROL OF RF GENERATOR FOR WELDING POLYMERIC CATHETER COMPONENTS
Document Type and Number:
WIPO Patent Application WO2003103931
Kind Code:
A3
Abstract:
For weld bonding polymeric components, a bond monitoring device is utilized to sense emissivity from a bonding site to preferably determine the temperature of the material at the surface of the bonding site. The bond monitoring device preferably comprises an infrared detector or pyrometer that determines the temperature at the surface of the bonding site by sensing the infrared radiation, which information is used to control current generation. The current generation device preferably comprises a radio-frequency current generator to create a magnetic field within a magnetic flux concentrator. The present invention is particularly applicable to weld bonding of tubular type components, such as may be used to make up a medical catheter lumen, because a heatable mandrel can be inserted within a plurality of components having at least adjacently positioned portions that are to be weld bonded together.
Inventors:
STERUD MICHAEL W
HEIDNER MATTHEW C
WORCESTER BRANDON
HEIDNER MATTHEW C
WORCESTER BRANDON
Application Number:
PCT/US2003/016268
Publication Date:
March 11, 2004
Filing Date:
May 22, 2003
Export Citation:
Assignee:
SCIMED LIFE SYSTEMS INC (US)
International Classes:
A61M25/16; B29C65/00; B29C65/18; B29C65/32; B29C65/78; H05B6/14; B29C65/04; (IPC1-7): B29C65/32; B29C65/00
Foreign References:
| US5306377A | 1994-04-26 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 04 31 May 1995 (1995-05-31)
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