Injection syringe
First Claim
1. An injection syringe comprising:
- a housing having a needle chamber and at least one liquid storage chamber arranged parallel to each other;
an injection needle movably mounted in said needle chamber from a first readiness position to a second operative position, said injection needle being provided with means for communicating with said liquid storage chamber when said injection needle is in said second operative position; and
piston means mounted in said liquid storage chamber for putting liquid in said liquid storage chamber under pressure such that liquid passes from said liquid storage chamber through said means for communicating when said injection needle is in said second operative position wherein the portion of said liquid storage chamber projects under said needle chamber for forming a secondary chamber which receives said communicating means of said injection needle.
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Accused Products
Abstract
An injection syringe having at least two chambers which are disposed in axis-parallel and juxtaposed relationship and an injection needle in which the needle cavity can be connected to a chamber for an injection liquid which can be pressurized by an injection piston that can be put under load, is intended to provide a syringe construction which is simplified in comparison with the state of the art, for manual handling of the injection piston, as well as mixing of a plurality of injection liquids during the injection operation. For that purpose, the juxtaposed chambers are each provided with an injection piston and communicate with a common prechamber which is formed by a releasable cap carrying the injection needle.
45 Citations
11 Claims
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1. An injection syringe comprising:
- a housing having a needle chamber and at least one liquid storage chamber arranged parallel to each other;
an injection needle movably mounted in said needle chamber from a first readiness position to a second operative position, said injection needle being provided with means for communicating with said liquid storage chamber when said injection needle is in said second operative position; and
piston means mounted in said liquid storage chamber for putting liquid in said liquid storage chamber under pressure such that liquid passes from said liquid storage chamber through said means for communicating when said injection needle is in said second operative position wherein the portion of said liquid storage chamber projects under said needle chamber for forming a secondary chamber which receives said communicating means of said injection needle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- a housing having a needle chamber and at least one liquid storage chamber arranged parallel to each other;
Specification