Balloon attachment at catheter tip

Surgery – Instruments – Internal pressure applicator

Patent

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604 96, A61M 2900

Patent

active

059647787

ABSTRACT:
An intravascular medical catheter and method of manufacturing a medical catheter are provided herein. The medical catheter includes a guidewire shaft, a sleeve, and a balloon. The sleeve is attached to the guidewire shaft while a distal tail of the balloon is thermally bonded to the sleeve. Because of the sleeve, the distal tail of the balloon can be thermally bonded even if the guidewire shaft is made of a material which is thermally incompatible with the balloon. Thus, for example, a medical catheter can be made with an HDPE guidewire shaft and a balloon made of PEBA, PET, Polyurethane, or Nylon. The resulting medical catheter has a catheter tip which is durable, flexible, and has a relatively low profile for good tracking in the body vessel and good lesion crossing.

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GUIDANT Advanced Cardiovascular Systems, Inc. Brochure, ACS RX ROCKET.TM. Coronary Dilatation Catheter with XCELON.TM. Balloon Material-Cross to a New World, Mar. 24, 1997, Temecula, California, USA.
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Schneider USA, Inc.--A Pfizer Company.RTM. Brochure, MYSTIC.TM. Over-the-Wire PTCA Balloon Catheter--At One With the Elements, Minneapolis, Minnesota, USA. The product illustrated in this brochure is currently believed to have been on sale more than one (1)year ago.
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Schneider (Europe) AG--Pfizer Hospital Products Group Brochure GOLDIE.TM. 2.4F Monorail.TM. PTCA Balloon Catheter, Bulach, Switzerland. The product illustrated in this brochure is currently believed to have been on sale more than one (1) year ago.
Schneider (USA) Inc.--Pfizer Hospital Products Group Brochure, SHORTGOOSE.TM. NC Non-Compliant, High Pressure PTCA Catheter, 1994, Minneapolis, Minnesota, USA.
Schneider (USA) Inc.--Pfizer Hospital Products Group Brochure, FREEHAND.TM. PTCA Balloon Catheter: FREEHAND.TM. Dual-Tapered TracTip.TM., 1993, Minneapolis, Minnesota, USA.
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Application for United States Letters Patent for Catheter Distal Tip Component by Sharon Schwab and Maritess E. Minas, filed on Apr. 24, 1997, Application No. 08/839,998.
Application for United States Letters Patent for Catheter Flexible Distal Tip by Sharon Ma, filed on Sep. 26, 1994, Application No. 08/312,359.
Application for United States Letters Patent for High Pressure Balloon Tip by Mauricio Lintag Fugoso and Candida Naguit Figueroa, filed on Dec. 15, 1995, Application No. 08/572,908.

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