Dialysis fluid heating using pressure and vacuum
First Claim
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1. A dialysis fluid heating system comprising:
- a dialysis fluid heater;
a heating portion of a dialysis fluid carrying set, the heating portion configured to be placed in contact with a surface of the dialysis fluid heater to heat a dialysis fluid;
a pneumatic source connected to the dialysis fluid heater; and
a logic implementer configured to cause the pneumatic source to apply a negative pressure between the heating portion and the surface of the dialysis fluid heater.
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Abstract
A dialysis fluid heating system includes a dialysis fluid heater; a heating portion of a dialysis fluid carrying set, the heating portion configured to be placed in contact with a surface of the dialysis fluid heater to heat a dialysis fluid; a pneumatic source connected to the dialysis fluid heater; and a logic implementer configured to cause the pneumatic source to apply a negative pressure between the heating portion and the surface of the dialysis fluid heater.
111 Citations
20 Claims
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1. A dialysis fluid heating system comprising:
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a dialysis fluid heater; a heating portion of a dialysis fluid carrying set, the heating portion configured to be placed in contact with a surface of the dialysis fluid heater to heat a dialysis fluid; a pneumatic source connected to the dialysis fluid heater; and a logic implementer configured to cause the pneumatic source to apply a negative pressure between the heating portion and the surface of the dialysis fluid heater. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A dialysis fluid heating method comprising:
applying a negative pressure to an outside surface of a dialysis fluid heating element to maintain a differential pressure between the outside surface and a dialysis fluid located inside the heating element so as to be able to maintain flow of the dialysis fluid through the heating element. - View Dependent Claims (17, 18)
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19. A dialysis fluid heating method comprising:
applying a negative pressure to an outside surface of a dialysis fluid heating element to pull the surface toward a heating surface of a heater to increase a contact area between the surfaces.
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20. A dialysis fluid heating method comprising:
applying a positive pressure to an outside surface of a dialysis fluid heating element in response to at least one condition selected from the group consisting of;
(i) a low/no flow condition of a dialysis fluid in the heating element;
(ii) overheating of the dialysis fluid in the heating element; and
(iii) air detected in the heating element or elsewhere in a disposable fluid set to which the heating element is connected.
Specification