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Steerable balloon dilatation catheter assembly having dye injection and pressure measurement capabilities

  • US 4,641,654 A
  • Filed: 07/30/1985
  • Issued: 02/10/1987
  • Est. Priority Date: 07/30/1985
  • Status: Expired due to Term
First Claim
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1. In a steerable balloon dilatation catheter assembly having dye injection and pressure measurement capabilities, an elongate flexible tubular member having first and second lumens extending longitudinally thereof a balloon carried by the distal portion of the tubular member and having its interior in communication with the second lumen, the first lumen extending through the balloon and being open at its distal extremity a guide wire extending through the first lumen and having a coil carried by the distal portion thereof and extending beyond the distal extremity of the tubular member, means coupled to the guide wire facilitating at least limited rotation of the distal extremity of the guide wire, means coupled to the guide wire limiting inward and outward movement of the guide wire in a direction longitudinal of the axis of rotation of the guide wire, a first fitting coupled to the second lumen and adapted to receive a liquid for inflating and deflating the balloon and a second fitting in communication with the first lumen, said first lumen and said guide wire being sized so that dye injections and/or pressure measurements can be made through the second fitting.

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