Arrangement for transcutaneous filling or replenishment of liquid medications in an implantable medication dosing device
First Claim
1. 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.
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Accused Products
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.
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Citations
5 Claims
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1. An apparatus for filling a reservoir for use with a source of negative pressure, said apparatus comprising:
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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. - View Dependent Claims (2, 3, 4, 5)
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Specification