Heated perfusion balloon for reduction of restenosis
First Claim
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1. A method for inhibiting restenosis in a vessel region comprising the steps of:
- heating said vessel region at a temperature in the range of about 40 degrees C. to about 45 degrees C. for a time period of 10 seconds to 60 minutes.
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Abstract
A method for inhibiting the restenosis of blood vessel walls after angioplasty, including the application of low grade heat to the vessel walls. A heat applying perfusion catheter is advanced to a recently dilatated vessel region. Heat is applied to the region walls to inhibit restenosis. A preferred temperature range is from 42 to 45 degrees C. A preferred time period for treatment is from 3 to 6 minutes. A perfusion catheter allows longer heat treatment times. Electrical resistance heat, radio frequency current passage through inflation fluid, and microwave radiation are all heat sources within the scope of the invention.
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Citations
6 Claims
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1. A method for inhibiting restenosis in a vessel region comprising the steps of:
heating said vessel region at a temperature in the range of about 40 degrees C. to about 45 degrees C. for a time period of 10 seconds to 60 minutes. - View Dependent Claims (2, 3, 4, 5, 6)
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