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System for removing a clot from a blood vessel

  • US 10,265,086 B2
  • Filed: 04/28/2015
  • Issued: 04/23/2019
  • Est. Priority Date: 06/30/2014
  • Status: Active Grant
First Claim
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1. A system for removing a clot from a blood vessel, the system comprising:

  • a catheter being capable of moving within the blood vessel and having a lumen extended therethrough, the catheter comprising;

    a catheter proximal section with a proximal section lumen diameter,a catheter distal section with a distal section lumen diameter, wherein the proximal section lumen diameter is greater than the distal section lumen diameter, anda catheter intermediate section tapered between the catheter proximal section and the catheter distal section;

    wherein the proximal section lumen diameter of the catheter is larger than the distal section lumen diameter of the catheter; and

    a clot retrieval device comprising;

    a clot engaging element having a first collapsed delivery configuration and a second expanded deployed configuration; and

    a shaft being advanceable through the lumen of the catheter to obstructions of the blood vessel, the shaft comprising;

    a shaft proximal section;

    a shaft distal section permanently attached to the clot engaging element, wherein the shaft distal section is capable of crossing the clot; and

    a shaft intermediate section distal of the shaft proximal section and tapered between the shaft distal section and the shaft proximal section;

    wherein an outer diameter of the shaft proximal section is greater than an outer diameter of the shaft distal section;

    wherein the shaft proximal section outer diameter is greater than an inner diameter of the catheter distal section thereby inhibiting the shaft proximal section from distally advancing through the catheter distal section;

    wherein an outer diameter of the catheter proximal section is equal to an outer diameter of the catheter distal section; and

    wherein the intermediate and distal sections of the catheter and shaft are advanceable through the blood vessel towards the clot.

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