公开(公告)号：US11313804B2

公开(公告)日：2022-04-26

申请号：US15677261

申请日：2017-08-15

Applicant: Medtronic, Inc.

Inventor： David B. Lura ,  Shawn Kelley ,  Martin T. Gerber

IPC: G01N21/80 ,  G01N21/78 ,  G01N21/64 ,  G01N21/77

Abstract: The invention relates to a fluid sensor apparatus and a related sensor card for determining and/or monitoring a pH and/or solute concentration in a fluid. The fluid sensor apparatus can be used in any application requiring the detection of fluid components or concentrations of solutes, and in an exemplary embodiment, is used to detect ammonia concentration and/or pH in dialysis fluid. The fluid sensor apparatus has a camera, a light source positioned opposite to the camera, and a receiving slot for positioning a removable sensor card between the camera and the light source such that both sides of the sensor card are exposed to the sampled fluid.

公开(公告)号：US20180073989A1

公开(公告)日：2018-03-15

申请号：US15677338

申请日：2017-08-15

Applicant: Medtronic, Inc.

Inventor： David B. Lura ,  Shawn Kelley

IPC: G01N21/78 ,  G01N21/25 ,  G01N21/80 ,  G01N33/00

CPC classification number: G01N21/783 ,  A61M1/1605 ,  A61M2205/3306 ,  G01N21/251 ,  G01N21/77 ,  G01N21/80 ,  G01N31/221 ,  G01N33/0054 ,  G01N2021/7783 ,  G01N2021/7786 ,  G01N2021/7793 ,  G01N2021/7796 ,  G01N2201/062 ,  Y02A50/246

Abstract: The invention relates to sensor cards for determining and/or monitoring solute concentration and/or pH of a fluid based on an optically observable change of a sensing membrane or colorimetric material in the presence of ions in solution. The sensor cards can be placed in a fluid sensor apparatus and used to determine the solute concentration and/or pH of any fluid, such as dialysate.

公开(公告)号：US20180075299A1

公开(公告)日：2018-03-15

申请号：US15677536

申请日：2017-08-15

Applicant: Medtronic, Inc.

Inventor： Martin T. Gerber ,  David B. Lura ,  Shawn Kelley

IPC: G06K9/00 ,  G01N33/00 ,  G01N21/80 ,  G06K9/20

Abstract: The invention relates to a gas bubble detector for determining gas bubbles in a fluid. The gas bubble detector can be used in any application requiring a determination whether gas bubbles exist in the fluid. The gas bubble detector has a photodetector, a light source, and a chamber in which the presence of gas bubbles are detected.

公开(公告)号：US20180074028A1

公开(公告)日：2018-03-15

申请号：US15677645

申请日：2017-08-15

Applicant: Medtronic, Inc.

Inventor： Martin T. Gerber ,  David B. Lura ,  Shawn Kelley

IPC: G01N31/22 ,  A61B5/08 ,  G01N1/22

CPC classification number: G01N31/223 ,  A61B5/08 ,  G01N1/22 ,  G01N21/783

Abstract: The invention relates to a colorimetric gas detector for determining and monitoring gaseous substances. The colorimetric gas detector can be used in any application requiring the detection of substances in a gaseous environment. The colorimetric gas detector has a photodetector, a light source positioned opposite to the photodetector, and a receiving slot for positioning a colorimetric media between the camera and the light source.

公开(公告)号：US20180073991A1

公开(公告)日：2018-03-15

申请号：US15677261

申请日：2017-08-15

Applicant: Medtronic, Inc.

Inventor： David B. Lura ,  Shawn Kelley ,  Martin T. Gerber

IPC: G01N21/80 ,  G01N21/64 ,  A61M1/16

CPC classification number: G01N21/80 ,  A61M1/1601 ,  A61M1/28 ,  A61M2205/3306 ,  A61M2205/3324 ,  A61M2205/3368 ,  G01N21/6428 ,  G01N21/78 ,  G01N21/783 ,  G01N2021/7763 ,  G01N2201/062 ,  G01N2201/0627

Abstract: The invention relates to a fluid sensor apparatus and a related sensor card for determining and/or monitoring a pH and/or solute concentration in a fluid. The fluid sensor apparatus can be used in any application requiring the detection of fluid components or concentrations of solutes, and in an exemplary embodiment, is used to detect ammonia concentration and/or pH in dialysis fluid. The fluid sensor apparatus has a camera, a light source positioned opposite to the camera, and a receiving slot for positioning a removable sensor card between the camera and the light source such that both sides of the sensor card are exposed to the sampled fluid.

公开(公告)号：US11255831B2

公开(公告)日：2022-02-22

申请号：US15677645

申请日：2017-08-15

Applicant: Medtronic, Inc.

Inventor： Martin T. Gerber ,  David B. Lura ,  Shawn Kelley

IPC: G01N31/22 ,  G01N21/78 ,  G01N33/00 ,  A61B5/08 ,  G01N1/22 ,  G01N21/75

Abstract: The invention relates to a colorimetric gas detector for determining and monitoring gaseous substances. The colorimetric gas detector can be used in any application requiring the detection of substances in a gaseous environment. The colorimetric gas detector has a photodetector, a light source positioned opposite to the photodetector, and a receiving slot for positioning a colorimetric media between the camera and the light source.

公开(公告)号：US10664701B2

公开(公告)日：2020-05-26

申请号：US15677536

申请日：2017-08-15

Applicant: Medtronic, Inc.

Inventor： Martin T. Gerber ,  David B. Lura ,  Shawn Kelley

IPC: G01N21/53 ,  G06K9/00 ,  A61M1/16 ,  G01N15/02 ,  G01N21/85 ,  G01N21/80 ,  G01N33/00 ,  G06K9/20 ,  A61M1/36 ,  G01N15/00

Abstract: The invention relates to a gas bubble detector for determining gas bubbles in a fluid. The gas bubble detector can be used in any application requiring a determination whether gas bubbles exist in the fluid. The gas bubble detector has a photodetector, a light source, and a chamber in which the presence of gas bubbles are detected.