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Suction ablation catheter

  • US 4,832,048 A
  • Filed: 10/29/1987
  • Issued: 05/23/1989
  • Est. Priority Date: 10/29/1987
  • Status: Expired due to Term
First Claim
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1. In a catheter which comprises a tubular body having a bore, having an open distal end, and having a proximal aperture for applying suction through said catheter bore to the distal end, said catheter also having an electrode coupled to said tubular body adjacent said distal end and an electrode lead extending along said catheter for communication of the electrode with a power source, said electrode being adapted to contact body fluids and to provide electrical pulses when said catheter is placed within a living body, the improvement comprising, in combination:

  • a tubular refractory insulating member having a bore and positioned adjacent said distal end, said electrode being positioned within said insulating member, to localize the effects of electrical pulses emitted from said electrode.

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