Medication delivery pen having an improved clutch assembly

Details Medication delivery pen having an improved clutch assembly Medication delivery pen having an improved clutch assembly

1997-08-11

1999-07-13

Stright, Ronald

Surgery

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

Treating material introduced into or removed from body...

604211, 604232, A61M 500

Patent

active

059219661

ABSTRACT:
An improved medication delivery pen is provided for injecting fluids such as insulin within body tissue. The medication delivery pen includes a mechanism that prevents the removal of a cartridge unless an injector button on the medication pen is in a predefined position, a bayonet attachment and an improved clutch assembly in a dose setting mechanism that provides improved control over the torque necessary to rotate a units counter ring in the medication delivery pen using a dose setting knob.

REFERENCES:
patent: 4568335 (1986-02-01), Updike et al.
patent: 4936833 (1990-06-01), Sams
patent: 5104380 (1992-04-01), Holman et al.
patent: 5279585 (1994-01-01), Balkwill
patent: 5674204 (1997-10-01), Chanoch

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