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Apparatus and method for vasodilation

  • US 5,662,590 A
  • Filed: 06/02/1995
  • Issued: 09/02/1997
  • Est. Priority Date: 10/03/1991
  • Status: Expired due to Term
First Claim
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1. An apparatus for dilating a blood vessel in vasospasm filled with a first fluid comprisinga catheter comprising a lumen containing a second fluid, wherein said first and second fluids can be the same or different,a wave generator arranged within said catheter lumen for generating a hydraulic wave front that propagates through the second fluid in said lumen and is transmitted from a distal end of said catheter to propagate through the first fluid in the blood vessel, wherein said wave generator is controlled and located at a distance from the distal end of said catheter such that no shock wave is propagated in the blood vessel, andan energy source connected to said wave generator to provide energy to produce said wave front.

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