Arrangement for transcutaneous filling or replenishment of liquid medications in an implantable medication dosing device
AssigneeSiemens Aktiengesellschaft
InventorsPeter Jaehrling, Eugen Schweikert
Life of this patent
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Abstract
An arrangement suitable for transcutaneous filling or replenishment of liquid medications in a medication reservoir of an implantable medical dosing device, the implantable device being of the type having a pierceable septum in fluid communication with the reservoir, has a cannula adapted at one end for piercing the septum from the exterior, and having a flexible conduit connected to an opposite end. The flexible conduit is terminated by a further pierceable septum. A syringe containing the medication can be inserted through the further septum for transferring the medication from the syringe through the flexible conduit and cannula to the medication reservoir.
Claims5
An apparatus for filling a reservoir for use with a source of negative pressure, said apparatus comprising:
- a cannula having a paracentesis end shaped for hermetic introduction into a reservoir to be filled with fluid, and having an opposite end;
- first and second flexible conduits in fluid communication with said opposite end of said cannula, each flexible conduit terminating in a free end;
- first and second pierceable septa respectively attached to said free ends of said first and second flexible conduits;
- and
- said second septum forming means for communicating said second flexible conduit and said cannula with said source of negative pressure for creating a negative pressure at said cannula for drawing fluid supplied through said first septa and said first flexible conduit into said cannula.
Dependencies are inferred from the claim text.