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Catheter guide

  • US 4,498,902 A
  • Filed: 02/23/1983
  • Issued: 02/12/1985
  • Est. Priority Date: 11/13/1982
  • Status: Expired due to Term
First Claim
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1. A catheter placement unit having a trocar with a substantially cylidrical sheath, the improvement comprising:

  • guide means having an exterior surface and an interior surface which define a guide wall therebetween with said guide wall having a normally curved cross-sectional area of preselected diameter; and

    said guide means having an opening of adjustable dimensions extendable throughout the entire length thereof, said guide means being semi-rigid such that, when compressive forces are applied to the said exterior surface of said guide means the guide wall is coiled so that the diameter of said guide wall is reduced, but when said compressive forces are removed, said guide wall tends to return to its said normal diameter, with said guide means being readily deformable to allow adjustment of said diameter of said guide means with said guide means being rolled into an adjusted diameter to facilitate utilization placement and movement of said guide means relative to said sheath of said trocar, and said opening of adjustable dimensions allowing said guide means to receive a catheter of a material suitable for causing said deformation of said guide means so that said catheter may be inserted through said opening exterior of a patient, and so that said guide means may be withdrawn from a patient without disturbing the positioning and integrity of said catheter.

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