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Preformed catheter assembly

  • US 4,738,667 A
  • Filed: 11/04/1986
  • Issued: 04/19/1988
  • Est. Priority Date: 11/04/1986
  • Status: Expired due to Fees
First Claim
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1. A preformed catheter assembly for insertion into a body cavity and comprising:

  • a length of non-bifurcated catheter tubing being flexibly pre-curved into a spiral form at its distal end and wherein the end portion of said distal end is radially enlarged, said tubing defining at least one aperture in the wall thereof; and

    a generally elongate sheath of a length less than said catheter tubing and being slidably mounted thereover so said sheath may be moved from a first position with said sheath overlying a portion of said catheter tubing that is not pre-curved to a second position with said sheath overlying said pre-curved distal end, said radially enlarged end portion serving as a stop for said sheath when it is moved from said first position to said second position;

    whereby said sheath may be moved from said first position to said second position to temporarily straighten said distal end of said catheter tubing for ease of insertion and removal of said catheter tubing from a body cavity.

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