04424720 is referenced by 113 patents and cites 18 patents.

A mechanism for screw drive and syringe plunger engagement and disengagement for a syringe infusion pump, wherein a split-nut pair are moveable into and out of engagement with a lead screw by means of rotary cam control, the rotary cam being keyed with a crank disk that is coupled to a crank arm, which operates as the syringe plunger mover. The crank arm is rotatable into and out of engagement with the syringe plunger, such rotation also causing the split-nut pair to move into and out of engagement with the lead screw. Index and cam means are carried by the crank arm to aid in proper alignment with the syringe plunger, and a sensor is provided for monitoring proper engagement of the crank arm with the plunger.

Title
Mechanism for screw drive and syringe plunger engagement/disengagement
Application Number
6/216768
Publication Number
4424720
Application Date
December 15, 1980
Publication Date
January 10, 1984
Inventor
Richard M Bucchianeri
Escondido
CA, US
Agent
Fulwider Patton Rieber Lee & Utecht
Assignee
IVAC Corporation
CA, US
IPC
A61M 5/00
F16H 25/20
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