Load suspension and weighing system for a dialysis machine reservoir
First Claim
1. A system for suspending and weighing a load inside a dialysis machine, the system comprising:
- a first frame defining a structure around which a portion of said dialysis machine is formed;
a second frame configured to receive and suspend a container of fluid, wherein the second frame is physically separate from the first frame; and
a flexure assembly comprising a top assembly, a bottom assembly, and a circuit board positioned between the top assembly and the bottom assembly, wherein the top assembly is attached to the first frame, wherein the bottom assembly is attached to the second frame, and wherein the top assembly, bottom assembly, and circuit board are configured to translate a load from the second frame to the first frame, avoiding the circuit board.
1 Assignment
0 Petitions
Accused Products
Abstract
A load suspension and weighing system for a removable reservoir unit of a portable dialysis machine includes a centrally located flexure assembly. The flexure assembly includes magnets and a number of flexure rings which allow for movement of the magnets about a fixed circuit board. Sensors in the circuit board sense changes in the magnetic field as the magnets move in relation to the circuit board. The magnetic field changes produce a voltage output which is used by a processor to generate weight calculations. The top of the flexure assembly is attached to the interior of the dialysis machine. The entirety of the reservoir unit is suspended by a first internal frame that is attached to the bottom of the flexure assembly. Having a single flexure assembly positioned above the reservoir unit provides more accurate weight measurements while also preventing damage to the assembly from water spillage.
642 Citations
20 Claims
-
1. A system for suspending and weighing a load inside a dialysis machine, the system comprising:
-
a first frame defining a structure around which a portion of said dialysis machine is formed; a second frame configured to receive and suspend a container of fluid, wherein the second frame is physically separate from the first frame; and a flexure assembly comprising a top assembly, a bottom assembly, and a circuit board positioned between the top assembly and the bottom assembly, wherein the top assembly is attached to the first frame, wherein the bottom assembly is attached to the second frame, and wherein the top assembly, bottom assembly, and circuit board are configured to translate a load from the second frame to the first frame, avoiding the circuit board. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification