DIALYSIS FLUID MEASUREMENT METHOD AND APPARATUS USING CONDUCTIVE CONTACTS
First Claim
Patent Images
1. A dialysate testing method comprising:
- placing electrical contacts in a dialysate flow path;
measuring an electrical property of the dialysate as it flows through the flow path and past the contacts; and
determining whether the dialysate has been mixed properly from the detected electrical property.
1 Assignment
0 Petitions
Accused Products
Abstract
A dialysate testing method in one embodiment includes placing electrical contacts in a dialysate flow path, measuring an electrical property of the dialysate as it flows through the flow path and past the contacts, and determining whether the dialysate has been mixed properly from the detected electrical property. A dialysate testing method in another embodiment includes flowing dialysate past a pair of electrical contacts, calculating a conductivity of the dialysate using an algorithm that takes into account a geometry of the contacts, and using the calculated conductivity to determine if the dialysate has been removed properly.
214 Citations
22 Claims
-
1. A dialysate testing method comprising:
-
placing electrical contacts in a dialysate flow path; measuring an electrical property of the dialysate as it flows through the flow path and past the contacts; and determining whether the dialysate has been mixed properly from the detected electrical property. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A dialysate testing method comprising:
-
flowing dialysate past a pair of electrical contacts; calculating a conductivity of the dialysate using an algorithm that takes into account a geometry of the contacts; and using the calculated conductivity to determine if the dialysate has been removed properly. - View Dependent Claims (11, 12, 13, 14)
-
-
15. A disposable dialysate cassette comprising:
-
a rigid structure; a flexible pumping membrane coupled to the rigid structure; a port extending from the rigid structure; and a conductive contact placed in the port. - View Dependent Claims (16, 17)
-
-
18. A disposable dialysis cassette comprising:
-
a rigid structure; a flexible pumping membrane coupled to the rigid structure; and a plurality of conductive contacts placed in a same fluid flow path defined by the rigid structure.
-
-
19. A disposable dialysis cassette comprising:
-
a flow path; a pump chamber; a flexible membrane forming a portion of at least one of the flow path and the pump chamber; and a conductive contact formed on the flexible membrane. - View Dependent Claims (20, 21, 22)
-
Specification