Pen needle and safety shield system

Details Pen needle and safety shield system Pen needle and safety shield system

2007-08-31

2010-10-19

Sirmons, Kevin C (Department: 3767)

Surgery

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

Treating material introduced into or removed from body...

C604S192000, C604S195000

Reexamination Certificate

active

07815611

ABSTRACT:
A safety shield system for a needle cannula of a pen needle injector or similar device, wherein the safety shield may be retracted from a first position enclosing the needle to a second position exposing the needle for injection. The safety shield system permits retraction of the safety shield during use, but extends the shield enclosing the needle in a locked position following use. The shield system is utilized with a pen needle injector having a double ended needle cannula mounted in a hub received on the open end of the pen needle injector. The assembly is disposed of by removing the assembly and needle cannula hub and storing the assembly in the cup-shaped cap enclosing the exposed end of the needle cannula within the cap. The cap includes internal radial ribs preventing retraction of the shield prior to removing the cap preventing inadvertently piercing the cap during assembly.

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Diggle et al., Effect of needle length on incidence of local reactions to routine immunization in infants aged 4 months: randomized controlled trial (Abstract) pp. 931-933, BMJ vol. 321, Oct. 14, 2000.

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