One-way clutch mechanisms and injector devices

Details One-way clutch mechanisms and injector devices One-way clutch mechanisms and injector devices

2005-05-31

2005-05-31

Lucchesi, Nicholas D. (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

C604S224000

Reexamination Certificate

active

06899698

ABSTRACT:
An incrementing mechanism suitable for use in a medical injector device has a driving member rotatably and slidably mounted within a tubular body and arranged to advance an elongate element in one direction with respect to the tubular body. A one-way clutch includes a generally conical surface and a blocking clutch member engageable with the conical surface. Means are provided to disengage the clutch, including a pressure component arranged and biased to engage the clutch member. Rotation of the driving member with respect to the pressure component causes two sets of inter-engageable teeth to ride over each other, which successively lifts the pressure component to disengage the clutch member from the conical surface and then allows the pressure component to be biased to a position where the clutch member engages the conical surface.

REFERENCES:
patent: 5674204 (1997-10-01), Chanoch
patent: 5743889 (1998-04-01), Sams

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