Device for automatically injecting an active agent

Details Device for automatically injecting an active agent Device for automatically injecting an active agent

Filed on

2005-05-20

Date issued

2010-10-05

Examiner

Sirmons, Kevin C (Department: 3767)

Patent Class

Surgery

SubClass

Means for introducing or removing material from body for...

SubSubClass

Treating material introduced into or removed from body...

Other Related Categories

C604S187000

Type

Reexamination Certificate

Status

active

Patent number

07806866

Description

ABSTRACT:
A device for automatically injecting an active agent, the device involving a syringe filled with an active agent and carrying an injection needle, the syringe displaceable in a receiver by the tension of a spring. A transmission displaceable by at least one spring traverses a first partial path for sticking the injection needle and a second partial path for emptying the active agent from the syringe. The at least one spring acts between the transmission and an intermediate part, and another spring acts between the intermediate part and a support fixedly connected to the receiver. An indicator visible from the outside is connected to the intermediate part, moves only during the second partial path, and traverses a path length that is substantially smaller that the sum of both partial paths.

REFERENCES:
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patent: 5478316 (1995-12-01), Bitdinger et al.
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patent: 6099503 (2000-08-01), Stradella
patent: 6203530 (2001-03-01), Stewart, Sr.
patent: 6936032 (2005-08-01), Bush et al.
patent: 2002/0095120 (2002-07-01), Larsen et al.
patent: 2004/0210199 (2004-10-01), Atterbury et al.
patent: WO 02/083218 (2002-10-01), None

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