×

Positive displacement pump

  • US 10,398,831 B2
  • Filed: 08/14/2015
  • Issued: 09/03/2019
  • Est. Priority Date: 05/11/2007
  • Status: Active Grant
First Claim
Patent Images

1. An apparatus for delivering a therapeutic fluid into a body of a patient, comprising:

  • a dispensing unit with;

    a reusable part;

    a disposable part comprising a housing with an outlet port, a reservoir for the therapeutic fluid and a connecting lumen that is part of and extends from the outlet port and which is in fluid communication directly with the reservoir;

    a plunger having a plunger head and a plunger rod for displacing the therapeutic fluid from the reservoir to the outlet port;

    a driving mechanism; and

    an electronic component including at least a controller for controlling at least the operation of the driving mechanism, anda cradle with upper and bottom sides, wherein the bottom side is adherable to skin of the patient, and the dispensing unit is connectable to and disconnectable from the upper side of the cradle, wherein the cradle further comprises a tubular protrusion emerging upwardly from the upper side which defines a well therein, the outlet port being configured as a recess in the housing of the disposal part which is sized to accommodate the tubular protrusion of the cradle, and the connecting lumen is configured to pierce a septum provided in the well upon accommodation of the tubular protrusion of the cradle in the outlet port which simultaneously fluidically connects, via the connecting lumen, the reservoir to a cannula extending from the bottom side of the cradle.

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