Automatic injection device

Details Automatic injection device Automatic injection device

2005-07-12

2005-07-12

Imam, Ali (Department: 3737)

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

C604S028000

Reexamination Certificate

active

06917828

ABSTRACT:
An automatic injection device has piston holders holding cylinder pistons and plural systems of heads having a drive mechanism for moving the piston holders forward and backward so that the device can hold a plurality of syringes and operates injection or suction in each syringe independently. This device also has a mechanism for prohibiting the backward-moving of the piston holder of a second head when the piston holder of a first head is in a forward-moving state and the piston holder of the second head is in a stopped state. This structure effectively prevents liquid from being undesirably mixed and the injection amount thereof from becoming less accurate.

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patent: 5298023 (1994-03-01), Haber et al.
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patent: 0 402 553 (1990-12-01), None
patent: 1 391 575 (1975-04-01), None

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