Soft tip guiding catheter and method of fabrication

Details Soft tip guiding catheter and method of fabrication Soft tip guiding catheter and method of fabrication

2005-02-08

2005-02-08

Staicovici, Stefan (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

C264S249000, C264S296000, C264S319000, C156S085000, C156S086000, C156S294000, C156S304200, C156S304600

Reexamination Certificate

active

06852261

ABSTRACT:
The present invention relates to medical vascular catheters adapted to be inserted into a blood vessel from an incision through the skin of a patient for introducing other devices or fluids for diagnostic or therapeutic purposes, and particularly to an improved distal soft tip or segment attachment with a relatively stiff proximal catheter shaft. A tubular sleeve is bonded through the application of pressure and heat to a distal portion of the catheter shaft and a proximal portion of the distal segment of soft distal tip bridging the attachment junction. In the preferred method, the catheter shaft distal end is aligned with the distal segment or soft tip proximal end and the sleeve is fitted over the attachment junction. A heat shrink tube is fitted over the sleeve and adjoining portions of the catheter shaft and the distal segment or distal soft tip and heat is applied. The shrinkage force of the heat shrink tube over the assembly of the tubular sleeve overlying and bridging the attachment junction and the applied heat melts and force the materials of the tubular sleeve and the catheter shaft and the distal segment or distal soft tip together to fill interstitial spaces of the attachment junction and reduces the outer diameter of the sleeve. The heat shrink tube is removed after the assembly cools and solidifies. Preferably, the catheter shaft distal end and the soft tip or intermediate segment proximal end are each formed with a like plurality of ungular cut sections that are complementary in shape to one another, whereby the ungular cut sections are aligned with and mated together along the attachment junction.

REFERENCES:
patent: 4251305 (1981-02-01), Becker et al.
patent: 4283447 (1981-08-01), Flynn
patent: 4531943 (1985-07-01), Van Tassel et al.
patent: 4540404 (1985-09-01), Wolvek
patent: 4551292 (1985-11-01), Fletcher et al.
patent: 4563181 (1986-01-01), Wijayarathna et al.
patent: 4636272 (1987-01-01), Riggs
patent: 4863442 (1989-09-01), DeMello et al.
patent: 4886506 (1989-12-01), Lovgren et al.
patent: 4899787 (1990-02-01), Ouchi et al.
patent: 4921483 (1990-05-01), Wijay et al.
patent: 4931037 (1990-06-01), Wetterman
patent: 5078702 (1992-01-01), Pomeranz
patent: 5160559 (1992-11-01), Scovil et al.
patent: 5178158 (1993-01-01), de Toledo
patent: 5205830 (1993-04-01), Dassa et al.
patent: 5221270 (1993-06-01), Parker
patent: 5234416 (1993-08-01), Macaulay et al.
patent: 5240537 (1993-08-01), Bodicky
patent: 5279596 (1994-01-01), Castaneda et al.
patent: 5292311 (1994-03-01), Cope
patent: 5342383 (1994-08-01), Thomas
patent: 5366442 (1994-11-01), Wang et al.
patent: 5509910 (1996-04-01), Lunn
patent: 5545149 (1996-08-01), Brin et al.
patent: 5569221 (1996-10-01), Houser et al.
patent: 5653697 (1997-08-01), Quiachon et al.
patent: 5676659 (1997-10-01), McGurk
patent: 5683370 (1997-11-01), Luther et al.
patent: 5725513 (1998-03-01), Ju et al.
patent: 5733400 (1998-03-01), Gore et al.
patent: 5738666 (1998-04-01), Watson et al.
patent: 5738742 (1998-04-01), Stevens
patent: 5755704 (1998-05-01), Lunn
patent: 5811043 (1998-09-01), Horrigan et al.
patent: 5836925 (1998-11-01), Soltesz
patent: 5897537 (1999-04-01), Berg et al.
patent: 5906605 (1999-05-01), Coxum
patent: 5938653 (1999-08-01), Pepin
patent: 5971975 (1999-10-01), Mills et al.
patent: 5993415 (1999-11-01), O'Neil et al.
patent: 6063318 (2000-05-01), Houser et al.
patent: 6238376 (2001-05-01), Peterson
patent: WO 8909634 (1989-10-01), None
patent: 0850653 (1998-01-01), None

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