HEMODIALYSIS SYSTEM HAVING CLAMPING MECHANISM FOR PERISTALTIC PUMPING
First Claim
Patent Images
1. A hemodialysis system comprising:
- an instrument;
first and second peristaltic dialysate pumps operated by the instrument;
a cassette including a rigid structure and first and second dialysate pumping tubes carried by the rigid structure; and
a mechanism configured to initially allow the cassette to be accepted by the dialysis instrument after which the mechanism engages the first and second dialysate pumping tubes for operation with the first and second peristaltic dialysate pumps.
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Abstract
A hemodialysis system including (i) an instrument; (ii) first and second peristaltic dialysate pumps operated by the instrument; (iii) a cassette including a rigid structure and first and second dialysate pumping tubes carried by the rigid structure; and (iv) a mechanism configured to initially allow the cassette to be accepted by the dialysis instrument after which the mechanism engages the first and second dialysate pumping tubes for operation with the first and second peristaltic dialysate pumps.
75 Citations
24 Claims
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1. A hemodialysis system comprising:
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an instrument; first and second peristaltic dialysate pumps operated by the instrument; a cassette including a rigid structure and first and second dialysate pumping tubes carried by the rigid structure; and a mechanism configured to initially allow the cassette to be accepted by the dialysis instrument after which the mechanism engages the first and second dialysate pumping tubes for operation with the first and second peristaltic dialysate pumps. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A hemodialysis system comprising:
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an instrument; first and second peristaltic dialysate pumps operated by the instrument; a cassette including a rigid structure and first and second dialysate pumping tubes carried by the rigid structure; and a mechanism configured to initially allow the cassette to be loaded onto a moveable platform of the dialysis instrument, after which the moveable platform and the mechanism are moved so that the mechanism engages the first and second dialysate pumping tubes for operation with the first and second peristaltic dialysate pumps. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A method for setting up a hemodialysis treatment comprising:
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retracting a peristaltic tube engager to facilitate the loading of a fluid pumping cassette into a dialysis instrument; enabling a door of the dialysis instrument to be opened to load the fluid pumping cassette into the dialysis instrument; and moving the peristaltic tube engager to engage multiple peristaltic pumping tubes of the fluid pumping cassette. - View Dependent Claims (21, 22, 23, 24)
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Specification