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Sub-intimal dissector and methods for performing endarterectomies therewith

  • US 3,929,138 A
  • Filed: 07/18/1973
  • Issued: 12/30/1975
  • Est. Priority Date: 07/18/1973
  • Status: Expired due to Term
First Claim
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1. A sub-intimal dissector comprising:

  • a. an elongated shaft, the shaft being bendable and having shape memory, b. a dissecting tip on one end of the shaft, c. the tip being arcuate transverse to its longitudinAl axis to define a concave top surface and a convex bottom surface extending between side edges, d. a slightly forwardly convex leading edge on the tip smoothly merging with the said opposed side edges, e. the opposed side edges tapering rearwardly and inwardly toward the shaft from a position slightly rearwardly of the leading edge, f. the arcuately longest portion of the said convex bottom surface extending along an arc transverse to the longitudinal axis of the tip a distance equal to approximately one third to one fifth of the circumference of an artery upon which it is to be employed, and g. the said leading edge in both said opposed side edges being smoothly rounded between the concave top and convex bottom surface of the tip.

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