Optical reflection systems and methods for cassette identification fordrug pumps
First Claim
1. A pump apparatus comprising:
- a control module including a processor and a pumping mechanism for pumping fluid through a fluid tube;
a base plate selectively mounted to the control module;
a fluid tube positioned between the base plate and the pumping mechanism of the control module;
a light emitter associated with the control module for directing light toward the base plate;
a light reflector associated with the base plate for reflecting light toward the control module;
a light receiver associated with the control module for receiving light reflected from the light reflector of the base plate;
means associated with the light receiver for sending a signal to the processor indicative of the light being sensed.
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Accused Products
Abstract
The present invention concerns a pump provided with a control module and an attachable fluid reservoir cassette. The control module includes a pumping mechanism for pumping fluid from the fluid reservoir to the patient. The cassette is provided with appropriate indicia to identify differences between a plurality of cassettes. The control module further includes cassette indicia identification structure for identifying indicia on the cassette. One type of cassette identification system includes a projection extending from the cassette and structure associated with the control module which engages the projection. Another type of cassette identification system includes a light reflecting system which utilizes light from the control module and reflected off the cassette. Still other types of cassette identification systems utilize other non-contact switches or sensors to sense indicia on the cassette to identify the cassette from a plurality of cassettes.
350 Citations
10 Claims
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1. A pump apparatus comprising:
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a control module including a processor and a pumping mechanism for pumping fluid through a fluid tube; a base plate selectively mounted to the control module; a fluid tube positioned between the base plate and the pumping mechanism of the control module; a light emitter associated with the control module for directing light toward the base plate; a light reflector associated with the base plate for reflecting light toward the control module; a light receiver associated with the control module for receiving light reflected from the light reflector of the base plate; means associated with the light receiver for sending a signal to the processor indicative of the light being sensed. - View Dependent Claims (2, 3, 4, 5)
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6. A base plate for use with a control module having a light emitter and a light receiver comprising:
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a body having a main surface facing in a first direction and including first and second longitudinal sides, and first and second transverse ends; a pair of hooks extending from the main surface adjacent to the first transverse end; a loop extending from the main surface adjacent to the second transverse end; a plurality of tube guide pairs extending form the main surface and spaced apart to receive a flexible tube in a direction generally parallel to the first and second longitudinal sides; and a light reflector associated with the body for reflecting light from the light emitter of the control module toward the light receiver of the control module.
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7. A pump control module comprising:
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a housing including a processor, a pumping mechanism extending from the housing for pumping fluid through a fluid tube, and a mounting mechanism for selectively mounting a base plate to the housing; a light emitter mounted to the housing for directing light toward the base plate, the light emitter facing in a first direction; and a light receiver mounted to the housing for receiving light reflected from the light reflector of the base plate, the light receiver facing in the first direction, the light receiver sending a signal to the processor indicative of light being sensed.
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8. A method for pumping fluid comprising the steps of:
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providing a control module having a pumping mechanism; providing a fluid reservoir having a base plate; providing a first sensor for electronically signalling to the control module that a predetermined base plate has been interconnected to the control module; interconnecting the base plate to the control module; directing light from the control module toward the base plate after the base plate is interconnected to the control module; reflecting the light from the base plate in a direction back toward the control module; after the reflected light has been sensed by the first sensor, sending an electronic signal to the control module that a predetermined base plate has been interconnected to the control module; and pumping fluid with the pumping mechanism. - View Dependent Claims (9, 10)
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Specification