Implantable medication delivery device having needle receiving slot
OwnerEdgardo Haliliinventor
Life of this patent
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Abstract
A medication delivery device having a housing including at least one needle receiving port comprising a septum and a needle entrance opening. The entrance opening in accordance with the invention comprises an elongate slot having a length L and a width W where L is significantly greater than W and where W is dimensioned to pass only needles smaller than a certain size.
Claims19
An implantable medication delivery device comprising:
- a housing defining an interior volume;
- a needle receiving port in said housing for communicating with said interior volume;
- said port comprising a septum and an entrance opening overlaying said septum;
- said entrance opening comprising a slot having a length L and a width W where W is selected to prevent penetration by a needle larger than a certain size and where L is greater than four times W.
An implantable medication delivery device comprising:
- a housing defining an interior volume;
- first and second reservoirs mounted in said interior volume;
- said housing defining first and second needle receiving ports respectively coupled to said first and second reservoirs, each of said ports comprising a septum and an entrance opening overlaying said septum;
- and wherein
- at least one of said entrance openings comprises a slot having a length L and a width W where W is selected to prevent a needle larger than a certain size from penetrating the underlying septum.
An implantable medication delivery device comprising:
- a medication reservoir;
- an outlet port adapted for coupling to a catheter;
- a flow path coupling said reservoir to said outlet port;
- a first needle receiving port for receiving medication to fill said reservoir;
- said first port comprising a septum and a first needle entrance opening overlaying said septum;
- a second needle receiving port for extracting fluid from or introducing fluid to said outlet port;
- said second port comprising a septum and a second needle entrance opening overlaying said septum;
- and wherein
- at least one of said first and second needle entrance openings comprises a slot having a length L and a width W where L is greater than four times W.
An implantable medication delivery device comprising:
- a medication reservoir;
- a catheter outlet port;
- a flow path coupling said reservoir to said catheter outlet port;
- a first inlet port coupled to said reservoir;
- said first inlet port comprising a septum and a first needle entrance opening overlaying said septum;
- a second inlet port coupled to said catheter outlet port;
- said second inlet port comprising a septum and a second needle entrance opening overlaying said septum;
- said first needle entrance opening comprising a slot having a width W1 greater than 0.0285 inches for passing a 22 gauge needle and a length L1 greater than four times W1;
- and
- said second needle entrance opening comprising a slot having a width W2 greater than 0.0205 inches for passing a 25 gauge needle and less than 0.0275 inches for rejecting a 22 gauge needle and a length L2 greater than four times W2.
The device of 12 wherein said first inlet port defines a first peripheral wall surface diverging outwardly from said first needle entrance opening slot;
- and wherein
- said second inlet port defines a second peripheral wall surface diverging outwardly from said second needle entrance opening slot.
A method of configuring a medication delivery device defining an interior volume comprising:
- providing a needle receiving port for communicating with said interior volume;
- and
- forming an entrance opening to said port comprising an elongate slot having a length L and a width W where W is selected to prevent penetration by a needle larger than a certain size and where L is considerably greater than W.
Dependencies are inferred from the claim text.