06110153 is referenced by 78 patents and cites 133 patents.

An infusion device with a disposable administration set which is inexpensive to manufacture. In the preferred embodiment of the present invention the disposable administration set has a plurality of elongated cam followers connected to a plate assembly, wherein the cam followers are displace in a predetermined sequence and forced against a delivery tube by cam means driven by rotary drive means. The device also includes an optical occlusion sensor which is synchronized to operate in phase with the movement of the cam followers to measure pressure within the delivery tube at one pump phase, thereby sensing downstream occlusions, and to measure vacuum within the delivery tube at a second pump phase, thereby sensing upstream occlusions. The occlusion sensor is optical, and measures the degree of total internal reflection at the interface of the tube and the plate assembly, occlusion in the tubing.

Title
Infusion device with optical sensor
Application Number
686757
Publication Number
6110153
Application Date
December 14, 1998
Publication Date
August 29, 2000
Inventor
Richard F Hatch
San Diego
CA, US
Robert E Brasier
San Diego
CA, US
David L Davis
San Diego
CA, US
Agent
Fulwider Patton Lee & Utecht
Assignee
ALARIS Medical Systems
CA, US
IPC
A61M 5/00
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