×

Apparatus for deployment of micro-coil using a catheter

  • US 8,728,142 B2
  • Filed: 01/23/2012
  • Issued: 05/20/2014
  • Est. Priority Date: 02/09/2000
  • Status: Expired due to Fees
First Claim
Patent Images

1. An apparatus for release and deployment of a therapeutic device within the vasculature of a patient, comprising:

  • an elongated, flexible pusher member having an interior lumen and a distal portion;

    a tubular collar detachably mounting a therapeutic device to the pusher member for placement of the therapeutic device within the vasculature, the tubular collar being expandable when heated and having a crimped closed configuration engaging a proximal portion of the therapeutic device and a radially outwardly expanded open configuration releasing the therapeutic device;

    an electrical resistance heater coil disposed in the tubular collar of the pusher member for heating the tubular collar to cause the tubular collar to expand and release the therapeutic device for detaching and deploying the therapeutic device from the flexible pusher member when a desired placement of the therapeutic device within the vasculature is achieved, said electrical resistance heater coil being connected to a power supply by electrical connectors extending through said interior lumen of said elongated pusher member, and said interior lumen of said elongated, flexible pusher member and said tubular collar being configured to provide an insulative space and wall thickness to contain heating of said tubular collar in said closed and open configurations of said tubular collar to avoid thermal damage to surrounding tissues of the vasculature of the patient.

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×