Implantable drug pumps and refill devices therefor
First Claim
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1. A system comprising:
- an implantable drug pump device comprising a drug reservoir having a fill port, the fill port having a septum located on a first surface thereof for receiving a needle penetrating therethrough into an aperture;
a needle for insertion through the septum into the aperture, the needle comprising a source of light illuminating the fill port when the needle has been inserted through the aperture; and
an optical window located on a second surface of the fill port different from the first surface and facilitating observation of light emitted only from the needle so as to ensure that the needle fully penetrates the septum and is located in the drug reservoir of the implantable drug pump device.
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Abstract
Implanted drug pump devices can be refilled with a refill needle inserted through a fill port in the drug reservoir of the drug pump device. Proper needle insertion may be verified visually or using electrical, magnetic, optical, acoustic, or other suitable sensing mechanisms.
121 Citations
9 Claims
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1. A system comprising:
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an implantable drug pump device comprising a drug reservoir having a fill port, the fill port having a septum located on a first surface thereof for receiving a needle penetrating therethrough into an aperture; a needle for insertion through the septum into the aperture, the needle comprising a source of light illuminating the fill port when the needle has been inserted through the aperture; and an optical window located on a second surface of the fill port different from the first surface and facilitating observation of light emitted only from the needle so as to ensure that the needle fully penetrates the septum and is located in the drug reservoir of the implantable drug pump device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification