×

Implanted medication infusion device

  • US 4,715,852 A
  • Filed: 07/21/1986
  • Issued: 12/29/1987
  • Est. Priority Date: 07/21/1986
  • Status: Expired due to Fees
First Claim
Patent Images

1. In an implantable medication infusion device, the combination of, a medication reservoir having a movable wall portion, a pressure stabilizing chamber in communication with said movable wall portion and filled with a fluid having a pressure which is greater than the pressure of the body in which said device is implanted, a solenoid operated pulsatile pumping unit having an inlet communicating with said reservoir through an inlet valve;

  • and a flow restrictor positioned between said pumping unit and a catheter outlet, said flow restrictor permitting; and

    continuous flow of medication to said catheter outlet at a safe value rate in the event said inlet valve remains open.

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