Therapeutic medical instrument for insertion into body

  • US 5,102,403 A
  • Filed: 06/18/1990
  • Issued: 04/07/1992
  • Est. Priority Date: 06/18/1990
  • Status: Expired due to Term
First Claim
Patent Images

1. A catheter with distal end structure for forming a lumen to encompass and ride along a guide wire comprising in combination:

  • a substantially cylindrical catheter body with an outer wall about a first lumen with the outer wall gradually changing in shape along the catheter body length toward the distal end from an entrance groove shaped as a path for guiding the wire inwardly into the cylindrical body along the catheter length to form initially a crescent shaped catheter body configuration partly surrounding the wire and which thereafter changes into a closed cylinder wall surrounding a second guide lumen for encompassing the guide wire.

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