Manifold for a two barrel syringe
First Claim
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1. Manifold for a two-barrel pen syringe for administering two different kinds of medicine, said syringe having two parallel cartridges each containing a different kind of medicine and each sealed at their outlet end with a rubber membrane, said manifold comprising:
- a molded plastic body;
a mixing chamber being formed as a cavity within said plastic body;
a first, second and third needle each having two ends, a first sharp end and a second end opening into said mixing chamber;
said mixing chamber being open at one end thereof for one end of said first and second needles, the other end of the mixing chamber being closed by a membrane through which one end of said third needle must pass to open into said cavity;
said first and second needles being embedded in said molded plastic body and having said first sharp ends project from one side of said molded plastic body with a spacing bringing them in a position to pierce rubber membranes of cartridges in a syringe when the manifold is mounted thereon; and
said third needle having its first sharp end project outside of said molded plastic body from a side opposite the sharp ends of said first and second needles.
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Abstract
The invention relates to an apparatus for simultaneous injection of two different kinds of preparations in a preset proportion.
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Citations
3 Claims
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1. Manifold for a two-barrel pen syringe for administering two different kinds of medicine, said syringe having two parallel cartridges each containing a different kind of medicine and each sealed at their outlet end with a rubber membrane, said manifold comprising:
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a molded plastic body; a mixing chamber being formed as a cavity within said plastic body; a first, second and third needle each having two ends, a first sharp end and a second end opening into said mixing chamber; said mixing chamber being open at one end thereof for one end of said first and second needles, the other end of the mixing chamber being closed by a membrane through which one end of said third needle must pass to open into said cavity; said first and second needles being embedded in said molded plastic body and having said first sharp ends project from one side of said molded plastic body with a spacing bringing them in a position to pierce rubber membranes of cartridges in a syringe when the manifold is mounted thereon; and said third needle having its first sharp end project outside of said molded plastic body from a side opposite the sharp ends of said first and second needles. - View Dependent Claims (2, 3)
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Specification