Method and apparatus for controlling medical fluid pressure
AssigneesBaxter International Inc., Baxter Healthcare S.A.
InventorsBruce Huitt, Peter Hopping, Rick Kienman
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Abstract
A method, system and apparatus for performing peritoneal dialysis are provided. To this end, in part, a method of controlling pressure in a medical fluid pump is provided. The method includes the steps of controlling a pump member acceleration during a first portion of a pump stroke and adaptively changing the pump member velocity during a second portion of the pump stroke.
Claims21
A method of controlling pressure in a medical fluid pump comprising the steps of:
- controlling a pump member according to a predetermined acceleration during a first portion of a pump stroke;
- and
- adaptively changing the pump member velocity during a second portion of the pump stroke.
A method of controlling pressure in a medical fluid pump comprising the steps of:
- effecting a pump member acceleration and deceleration during a first portion of a pump stroke, the acceleration and deceleration determined before the first portion;
- using a first set of factors determined during a second portion of the pump stroke to change the pump member velocity during the second portion;
- and
- using a second set of factors determined during a third portion of the pump stroke to change the pump member velocity during the third portion.
An automated medical fluid system comprising:
- a medical fluid pump;
- and
- a controller that operates with the medical fluid pump to:
- effect a pump member acceleration during a first portion of a pump stroke, the acceleration determined before the first portion;
- use a first set of factors determined during a second portion of the pump stroke to change the pump member velocity during the second portion;
- and
- use a second set of factors determined during a third portion of the pump stroke to change the pump member velocity during the third portion.
Dependencies are inferred from the claim text.