Pump cassettes with flow stop and infusion pump systems
First Claim
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1. A pump cassette comprising:
- a rigid body comprising two opposing edge sections, an inlet port, an outlet port, and a controllable fluid pathway extending from the inlet port to the outlet port;
a slider coupled to the two opposing edge sections and longitudinally articulable along the two opposing edge sections with respect to the rigid body; and
a flow stop valve operably coupled to the controllable fluid pathway, wherein the flow stop valve is disposed on the rigid body such that longitudinal articulation of the slider along the two opposing edge sections causes a portion of the slider to actuate the flow stop valve, wherein the flow stop valve is configured to occlude fluid flow through the controllable fluid pathway when the slider is in a first position, and to allow fluid flow through the controllable fluid pathway when the slider is in a second position, wherein the flow stop valve comprises a striker portion coupled to a membrane portion, wherein the portion of the slider is configured to depress the striker portion to urge the membrane portion to occlude fluid flow through the controllable fluid pathway, wherein the striker portion comprises a piece attached to the membrane portion, wherein the portion of the slider is configured to contact the piece to depress the piece when the slider is in the first position, and wherein the piece is configured to align under a recess of the slider such that the slider does not contact the piece when the slider is in the second position.
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Abstract
Pump cassettes, infusion systems, and methods are described. An example pump cassette may include a rigid body including two opposing edge sections, an inlet port, an outlet port, and a controllable fluid pathway extending from the inlet port to the outlet port. The pump may include a slider coupled to the two opposing edge sections and articulable with respect to the rigid body; and a flow stop valve operably coupled to the controllable fluid pathway.
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Citations
24 Claims
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1. A pump cassette comprising:
- a rigid body comprising two opposing edge sections, an inlet port, an outlet port, and a controllable fluid pathway extending from the inlet port to the outlet port;
a slider coupled to the two opposing edge sections and longitudinally articulable along the two opposing edge sections with respect to the rigid body; and
a flow stop valve operably coupled to the controllable fluid pathway, wherein the flow stop valve is disposed on the rigid body such that longitudinal articulation of the slider along the two opposing edge sections causes a portion of the slider to actuate the flow stop valve, wherein the flow stop valve is configured to occlude fluid flow through the controllable fluid pathway when the slider is in a first position, and to allow fluid flow through the controllable fluid pathway when the slider is in a second position, wherein the flow stop valve comprises a striker portion coupled to a membrane portion, wherein the portion of the slider is configured to depress the striker portion to urge the membrane portion to occlude fluid flow through the controllable fluid pathway, wherein the striker portion comprises a piece attached to the membrane portion, wherein the portion of the slider is configured to contact the piece to depress the piece when the slider is in the first position, and wherein the piece is configured to align under a recess of the slider such that the slider does not contact the piece when the slider is in the second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- a rigid body comprising two opposing edge sections, an inlet port, an outlet port, and a controllable fluid pathway extending from the inlet port to the outlet port;
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16. A pump cassette comprising:
- a rigid body comprising two opposing edge sections, an inlet port, an outlet port, and a controllable fluid pathway extending from the inlet port to the outlet port;
a pump structure comprising a pump chamber configured to urge fluid through the controllable fluid pathway;
a slider coupled to the two opposing edge sections and longitudinally articulable along the two opposing edge sections with respect to the rigid body, the slider comprising a slider grip, the slider grip being proximal to the pump structure and distal to the inlet port in all articulable positions of the slider with respect to the rigid body; and
a flow stop valve operably coupled to the controllable fluid pathway, wherein the flow stop valve is disposed on the rigid body such that longitudinal articulation of the slider along the two opposing edge sections causes a portion of the slider to actuate the flow stop valve, wherein the flow stop valve is configured to occlude fluid flow through the controllable fluid pathway when the slider is in a first position, and to allow fluid flow through the controllable fluid pathway when the slider is in a second position, wherein the flow stop valve comprises a striker portion coupled to a membrane portion, wherein the portion of the slider is configured to depress the striker portion to urge the membrane portion to occlude fluid flow through the controllable fluid pathway, wherein the striker portion comprises a piece attached to the membrane portion, wherein the portion of the slider is configured to contact the piece to depress the piece when the slider is in the first position, and wherein the piece is configured to align under a recess of the slider such that the slider does not contact the piece when the slider is in the second position. - View Dependent Claims (17, 18, 19, 20)
- a rigid body comprising two opposing edge sections, an inlet port, an outlet port, and a controllable fluid pathway extending from the inlet port to the outlet port;
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21. A method of priming a pump cassette, the method comprising:
- articulating a slider of a pump cassette longitudinally with respect to a rigid body of the pump cassette, along two opposing edge sections of the rigid body, to a first position such that a portion of the slider depresses a striker portion of a flow stop valve of the pump cassette and urges a membrane portion coupled to the striker portion to occlude fluid flow through a controllable fluid pathway of the rigid body, wherein the controllable fluid pathway extends from an inlet port of the rigid body to an outlet port of the rigid body;
articulating the slider longitudinally with respect to the rigid body, along the two opposing edge sections of the rigid body, to a second position such that the flow stop valve allows fluid flow through the controllable fluid pathway; and
actuating a pump assembly to urge fluid through the controllable fluid pathway when the slider is in the second position, wherein the flow stop valve is disposed on the rigid body such that the longitudinal articulation of the slider along the two opposing edge sections causes the portion of the slider to actuate the flow stop valve, wherein the striker portion comprises a piece attached to the membrane portion, wherein the portion of the slider contacts the piece to depress the piece when the slider is in the first position, and wherein the piece is aligned under a recess of the slider such that the slider does not contact the piece when the slider is in the second position. - View Dependent Claims (22, 23, 24)
- articulating a slider of a pump cassette longitudinally with respect to a rigid body of the pump cassette, along two opposing edge sections of the rigid body, to a first position such that a portion of the slider depresses a striker portion of a flow stop valve of the pump cassette and urges a membrane portion coupled to the striker portion to occlude fluid flow through a controllable fluid pathway of the rigid body, wherein the controllable fluid pathway extends from an inlet port of the rigid body to an outlet port of the rigid body;
Specification