Safety drug-injecting device with traveling hypodermic or...

Details Safety drug-injecting device with traveling hypodermic or... Safety drug-injecting device with traveling hypodermic or...

2006-07-26

2010-11-23

Sirmons, Kevin C. (Department: 3767)

Surgery

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

Treating material introduced into or removed from body...

C604S181000, C604S187000, C604S201000, C604S218000

Reexamination Certificate

active

07837657

ABSTRACT:
A drug-injecting device with a traveling hypodermic or intramuscular needle. The drug-injecting device includes a syringe body which has a base and a top opening into a hollow interior. A membrane is attached across the base of the syringe body, hermetically sealing the reservoir of the syringe from the environment. A plunger is situated within the hollow interior of the syringe body, so that one end of the plunger projects outward through the top of the syringe body. A piston is attached to the other end of the plunger. The plunger is configured to travel back and forth within the hollow interior of the syringe body between a first position and a second position. A needle is attached to the piston so that the needle travels with the plunger when the plunger is moved between the first and second positions.

REFERENCES:
patent: 4637934 (1987-01-01), White
patent: 4650468 (1987-03-01), Jennings, Jr.
patent: 4664653 (1987-05-01), Sagstetter et al.
patent: 4695274 (1987-09-01), Fox
patent: 5019043 (1991-05-01), Segui Pastor et al.
patent: 5147303 (1992-09-01), Martin
patent: 5370619 (1994-12-01), Rossi
patent: 5647849 (1997-07-01), Kalin
patent: 6537257 (2003-03-01), Wien

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