公开(公告)号：US20200155747A1

公开(公告)日：2020-05-21

申请号：US16712385

申请日：2019-12-12

Applicant: NxStage Medical, Inc.

Inventor： Orlando SOTO ,  Joseph RAUSA ,  James M. BRUGGER ,  William J. SCHNELL ,  Goetz FRIEDERICHS ,  Jeffrey H. BURBANK ,  Joseph E. TURK, JR. ,  Scott W. NEWELL ,  Amanda WOZNIAK

IPC: A61M1/16

Abstract: A conductivity measurement device includes first and second conductivity measurement flow channels positioned in a fluid circuit and fluidly linked for fluid flow between the first and second conductivity measurement flow channels. A controller having a current source connected to the first and second conductivity channels applies alternating voltages at frequencies that are different, each being respective to one of the first and second conductivity cells.

公开(公告)号：US20170296730A1

公开(公告)日：2017-10-19

申请号：US15337999

申请日：2016-10-28

Applicant: NXSTAGE MEDICAL, INC.

Inventor： Orlando SOTO ,  Joseph RAUSA ,  James M. BRUGGER ,  William J. SCHNELL ,  Goetz FRIEDERICHS ,  Jeffrey H. BURBANK ,  Joseph E. TURK ,  Scott W. NEWELL ,  Amanda WOZNIAK

IPC: A61M1/16

CPC classification number: A61M1/1668 ,  A61M1/1666 ,  A61M5/14228 ,  A61M2205/12 ,  A61M2205/3317 ,  A61M2205/3368

Abstract: Embodiments include a consumable medical device comprises a rigid cartridge to which a film is adhered to form a fluid channel and a damper chamber. A portion of the film forming the damper chamber has a wave-like shape adapted to roll onto a tip of a damper. The damper has a plunger to minimize peristaltic pressure in the channel The cartridge may include conductivity measurement channels. Crosstalk may be minimized by using different frequencies or time division for reading the channels. A stable dialysate concentrate containing sodium lactate may be used or generated with the system. The concentrate may be formed to higher concentration than feasible with a single component concentrate by forming two containers of concentrate, each containing a fraction of a total quantity of sodium lactate required for a predefined number of dialysis

公开(公告)号：US20230293794A1

公开(公告)日：2023-09-21

申请号：US18200666

申请日：2023-05-23

Applicant: NxStage Medical, Inc.

Inventor： Orlando SOTO ,  Joseph RAUSA ,  James M. BRUGGER ,  William J. SCHNELL ,  Goetz FRIEDERICHS ,  Jeffrey H. BURBANK ,  Joseph E. TURK, JR. ,  Scott W. NEWELL ,  Amanda WOZNIAK

IPC: A61M1/16

CPC classification number: A61M1/1668 ,  A61M1/1666 ,  A61M1/1605 ,  A61M1/1601 ,  A61M2205/3368 ,  A61M2205/3317 ,  A61M2205/12 ,  A61M5/14228

Abstract: A conductivity measurement device includes first and second conductivity measurement flow channels positioned in a fluid circuit and fluidly linked for fluid flow between the first and second conductivity measurement flow channels. A controller having a current source connected to the first and second conductivity channels applies alternating voltages at frequencies that are different, each being respective to one of the first and second conductivity cells.