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Remote controlled catheter having a micro-balloon

  • US 4,734,093 A
  • Filed: 11/10/1986
  • Issued: 03/29/1988
  • Est. Priority Date: 11/21/1985
  • Status: Expired due to Fees
First Claim
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1. A remote controlled catheter comprising a frame element having fluid passages therethrough, a tube supported by the frame element and in fluid communication therewith, said tube extending forwardly from the frame element, a tubular covering surrounding the tube and sealed at its rear end to the frame element and sealed at its forward end to a forward end portion of the tube, means for injecting liquid through the frame element and between the tube and the tubular covering, the tubular covering being laterally pierced to permit said liquid to escape from the catheter, a coil spring having spaced coils supported on the forward end of the tube and extending forwardly of the tube, a flexible pulling member connected to the coil spring forwardly of the forward end of the tube and extending through the tube and frame element, means supported within the frame element for adjustably exerting tension of the flexible pulling member thereby to deflect the spring laterally, an inflatable micro-balloon sealed to the forward end of the tube and surrounding the spring, and means for applying a fluid under pressure through one of the passages in the frame element and the tube and out the forward end of the tube into the micro-balloon to inflate the micro-balloon.

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