×

Medical infusion apparatus

  • US 5,211,626 A
  • Filed: 12/17/1990
  • Issued: 05/18/1993
  • Est. Priority Date: 05/01/1987
  • Status: Expired due to Term
First Claim
Patent Images

1. Medical infusion apparatus comprising:

  • a liquid reservoir;

    a conduit for delivering liquid from the reservoir to a patient; and

    a monitor for monitoring the flow rate of said liquid along said conduit, said monitor comprising means external of said conduit for applying a pulse of heat to a liquid at a location in the conduit, and radiation sensing means outside a periphery of the conduit including an infra-red sensor spaced from said conduit for sensing a change in temperature of liquid at a position downstream of the location, so that the speed of travel of the heat pulse can be determined in response to radiation sensed by the sensor;

    whereby the monitor is non-intrusive to permit removal of the conduit from the monitor.

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