Drug delivery apparatus including beneficial agent chamber with chimney for a directed flow path
First Claim
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1. A cartridge for introducing a beneficial agent into a fluid conduit comprising:
- (a) a wall defining chamber for containing a beneficial agent; and
(b) pierceable closure means closing said chamber, said pierceable closure means including an outer face and an opposed inner face facing the defined chamber, said closure means further including a hollow, open ended protrusion extending from said inner face in a direction substantially parallel to the length of said cartridge, wherein said beneficial agent is disposed within said hollow protrusion and wherein said beneficial agent is retained within said hollow protrusion by means of a liquid pervious barrier.
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Abstract
A cartridge for introducing a beneficial agent into a medical fluid conduit is disclosed. The cartridge includes a pierceable stopper having a hollow, open ended protrusion extending into the cartridge chamber and having the beneficial agent retained therein by a liquid pervious barrier. The hollow, open ended protrusion creates a directed flow path within the cartridge.
59 Citations
13 Claims
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1. A cartridge for introducing a beneficial agent into a fluid conduit comprising:
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(a) a wall defining chamber for containing a beneficial agent; and (b) pierceable closure means closing said chamber, said pierceable closure means including an outer face and an opposed inner face facing the defined chamber, said closure means further including a hollow, open ended protrusion extending from said inner face in a direction substantially parallel to the length of said cartridge, wherein said beneficial agent is disposed within said hollow protrusion and wherein said beneficial agent is retained within said hollow protrusion by means of a liquid pervious barrier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification