Injection device

Details Injection device Injection device

2005-11-24

2009-10-06

Sirmons, Kevin C (Department: 3767)

Surgery

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

Treating material introduced into or removed from body...

C604S198000, C604S218000

Reexamination Certificate

active

07597685

ABSTRACT:
Injection device comprising a tubular elongated main body, a needle shield slidably arranged in said main body, a needle shield link slidably connected to said needle shield, a enclosure containing medicament arranged in said main body, a needle connected to said enclosure, a plunger operatively arranged to said enclosure for ejecting said medicament through said needle and arranged on its upper part with a number of outwardly extending stop members, spring means arranged to said plunger for operating said plunger, a dose activating means, a needle shield spring surrounding the needle shield link. The invention is characterised in that said injection device further comprises a first tubular member rotationally and slidably arranged inside said needle shield link, said tubular member comprises a number or ridges and protrusions on both its outer and inner surfaces, said ridges and protrusions on the outer surface of the tubular member co-operate with guide members arranged on the inner surface of said needle shield link, said ridges and protrusions on the inner surface of the tubular member co-operate with the outwardly extending stop members of the plunger that said injection device further comprises a second tubular member arranged inside said housing, arranged and designed with a number of ridges and protrusions on its inner and outer surfaces capable of setting and delivering a certain preset dose.

REFERENCES:
patent: 5304152 (1994-04-01), Sams
patent: 5478316 (1995-12-01), Bitdinger et al.
patent: 5658259 (1997-08-01), Pearson et al.
patent: 5679111 (1997-10-01), Hjertman et al.
patent: 6290679 (2001-09-01), Hostettler et al.
patent: 0 298 067 (1989-01-01), None
patent: 2004028598 (2004-04-01), None
patent: 2005044345 (2005-05-01), None
patent: 2005044348 (2005-05-01), None
PCT International Search Report, mailed Feb. 28, 2006, in connection with International Application No. PCT/SE2005/001764.
PCT Intl Preliminary Exam Report on Patentability, May 30, 2007, in connection with International Application No. PCT/SE2005/001764.

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