A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
128/65
A61M 5/30 (2006.01) A61J 1/00 (2006.01)
Patent
CA 1258019
- 1 - Abstract: An actuator is described for a needleless disposable syringe. The actuator includes a hollow substantially cylindrical front section and a hollow substantially cylindrical rear section. The front section has an open rear end and a front end merging into an outwardly ex- tending neck portion. This neck portion defines an axial opening and a tubular inner member extends axially within the cylindrical front section from the neck portion. The tubular inner member is adapted to retain a disposable syringe of the type having a hollow medicine holding cylinder with an orifice in one end and a piston slidably mounted in the other end. The rear section is a power pack which includes spring means in the form of a plura- lity of disc springs for driving the piston in the front section from a retracted position in which the medicine holding cylinder contains a substance to be administered to an extended position in which the substance is sub- stantially completely discharged through the orifice. A bushing is slidably mounted between the piston and the spring means and is capable of engaging the piston as it travels from the retracted position to the extended position. Latch means is also provided for locking the bushing and spring means in the retracted position.
499327
Activa Brand Products Inc.
Seaby & Associates
LandOfFree
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