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公开(公告)号：US11690941B2
公开(公告)日：2023-07-04
申请号：US16360396
申请日：2019-03-21
CPC分类号： A61M1/282 , A61M1/166 , A61M1/167 , A61M1/1656 , A61M1/1664 , A61M1/1668 , A61M1/1672 , A61M1/1674 , A61M1/28 , A61M1/281 , A61M1/285 , A61M1/287 , A61M1/288 , A61M2025/0002 , A61M2205/12 , A61M2205/123 , A61M2205/128 , A61M2205/14 , A61M2205/18 , A61M2205/33 , A61M2205/3331 , A61M2205/3334 , A61M2205/3351 , A61M2205/3355 , A61M2205/52 , A61M2230/005
摘要： A method of performing a dialysis treatment includes using a pump and a dialysate supply line to transport peritoneal dialysis fluid, the supply line having a proximal end into which peritoneal dialysis fluid is supplied and from which spend dialysate is withdrawn, and a distal end which is connected to a patient's peritoneal access. The method further includes generating proximal and distal pressure signals using pressure detectors located at both the proximal and distal ends, respectively, of said supply line. During a drain cycle in which spent dialysate is pumped from the patient, the method includes, responsively to the proximal and distal pressure signals, detecting a characteristic of a pressure difference between the distal and proximal ends whose magnitude is determined by a predicted change in dialysate properties, and responsively to the characteristic, generating a signal indicating the change in dialysate properties.
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公开(公告)号：US11224684B2
公开(公告)日：2022-01-18
申请号：US15476548
申请日：2017-03-31
摘要： A peritoneal dialysis device includes a disposable tubing set that includes a fill line with a patient access connector at one end and a dialysis fluid receiving end opposite the patient access connector end. The device also includes a fill-side pressure measuring sensor attached at the fill end and forming a disposable component of the tubing set and a patient-side pressure measuring sensor located at the fluid receiving end. The patient-side and fill-side pressure measuring sensors are adapted for measuring pressure in the fill line at the respective ends thereof. The device also includes a controller configured to regulate a rate of flow in the fill line responsively to a signal from the at least the patient-side pressure measuring sensor.
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公开(公告)号：US10688235B2
公开(公告)日：2020-06-23
申请号：US15476927
申请日：2017-03-31
摘要： A method of performing a dialysis treatment includes using a pump and a dialysate supply line to transport peritoneal dialysis fluid, the supply line having a proximal end into which peritoneal dialysis fluid is supplied and from which spend dialysate is withdrawn, and a distal end which is connected to a patient's peritoneal access. The method further includes generating proximal and distal pressure signals using pressure detectors located at both the proximal and distal ends, respectively, of said supply line. During a drain cycle in which spent dialysate is pumped from the patient, the method includes, responsively to the proximal and distal pressure signals, detecting a characteristic of a pressure difference between the distal and proximal ends whose magnitude is determined by a predicted change in dialysate properties, and responsively to the characteristic, generating a signal indicating the change in dialysate properties.
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公开(公告)号：US11433170B2
公开(公告)日：2022-09-06
申请号：US17403614
申请日：2021-08-16
摘要： A treatment device system includes a treatment machine for generating a custom dialysis solution and including at least one fluid conveyor, the treatment machine having a controller, the controller having a first memory, configured to produce the custom dialysis solution by causing the at least one fluid conveyor to mix purified water and at least one concentrate. The system also includes a user interface and a water purifier in fluid communication with and providing the purified water to the treatment machine, the water purifier including an internal central controller, the internal central controller having a second memory, to control preparation of the purified water. A server is communicatively coupled with the treatment machine and a control line provides two way communication between the controller of the treatment machine and the internal central controller of the water purifier.
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公开(公告)号：US10688234B2
公开(公告)日：2020-06-23
申请号：US15476015
申请日：2017-03-31
摘要： A method of performing a peritoneal dialysis treatment includes connecting a disposable unit to a source of water. The disposable unit includes at least a first container holding a sterile concentrate containing an osmotic agent, a second container holding a sterile concentrate containing electrolytes, an empty sterile mixing container, and a tubing set with a pre-attached peritoneal fill/drain line. The method also includes receiving a prescription command by a controller, indicating at least the fill volume and desired final concentration of the osmotic agent to be used for a current fill cycle under said treatment, and pumping a quantity of the concentrated osmotic agent that is at least sufficient to achieve the desired final concentration into the mixing container. The contest of the mixing container are mixed, further diluted or concentrated, and then flowed to a patient.
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公开(公告)号：US10603424B2
公开(公告)日：2020-03-31
申请号：US15476819
申请日：2017-03-31
摘要： A disposable fluid circuit used in a medical device that performs peritoneal dialysis includes a peritoneal dialysis tubing set that has a connection tube with a connector for a peritoneal catheter at a distal end and a connector configured to connect to a peritoneal cycler at a proximal end. The circuit also includes a pressure pod at the distal end, the pressure pod being of the type that has a flow chamber for carrying a liquid and an air chamber separated from the flow chamber by a diaphragm and an air port in fluid communication with the air chamber. The flow chamber is connected in-line with a lumen of the connection tube and a length of tubing runs from the air-port along the length of the connection tube with a connector at the proximal end configured to connect to a pressure transducer.
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公开(公告)号：US10046100B2
公开(公告)日：2018-08-14
申请号：US15400978
申请日：2017-01-07
IPC分类号： A61M1/28
CPC分类号： A61M1/282 , A61M1/1656 , A61M1/166 , A61M1/1664 , A61M1/1668 , A61M1/167 , A61M1/1672 , A61M1/1674 , A61M1/28 , A61M1/281 , A61M1/285 , A61M1/287 , A61M1/288 , A61M2025/0002 , A61M2205/12 , A61M2205/123 , A61M2205/128 , A61M2205/14 , A61M2205/18 , A61M2205/33 , A61M2205/3331 , A61M2205/3334 , A61M2205/3351 , A61M2205/3355 , A61M2205/52 , A61M2230/005
摘要： An automated peritoneal dialysis system provides various features including prescription-driven dialysis fluid preparation, an integrated disposable fluid circuit, and sensor capabilities that allow accurate filing and draining control with high safety margins. Features include a peritoneal fluid circuit with a pressure sensor at either end and methods and devices for using the pressure signals. Other features and embodiments are disclosed.
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公开(公告)号：US09861733B2
公开(公告)日：2018-01-09
申请号：US14348533
申请日：2012-09-23
IPC分类号： A61M1/28
摘要： An automated peritoneal dialysis system provides various features including prescription-driven dialysis fluid preparation, an integrated disposable fluid circuit, and sensor capabilities that allow accurate filing and draining control with high safety margins. Features include a peritoneal fluid circuit with a pressure sensor at either end and methods and devices for using the pressure signals. Other features and embodiments are disclosed.
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公开(公告)号：US12048791B2
公开(公告)日：2024-07-30
申请号：US16621824
申请日：2018-06-24
发明人： Mark T. Wyeth , Gregory Yantz , James Ian Johnson , James M. Brugger , Dennis M. Treu , Dritan Kurshumi , Jeffrey H. Burbank , William J. Schnell , Robert Paul McCarty
CPC分类号： A61M1/1672 , A61M1/154 , A61M1/155 , A61M1/156 , A61M1/1565 , A61M1/159 , A61M1/1668 , A61M1/287 , A61M39/22 , A61M2205/3331
摘要： Peritoneal dialysis admixing and/or treatment devices, methods, and systems are disclosed. The systems, methods, and devices provide high-level guarantees of sterility and employs relatively inexpensive disposable components to provide pumping. Disclosed systems, methods, and devices and features thereof are adapted for point of use generation of medicament. In particular admixing systems that employ independently-replaceable long term concentrate are disclosed. Features are directed to assurance of sterility and accurate admixing of water and concentrate to generate ready-to-use medicaments and other benefits.
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公开(公告)号：US11920997B2
公开(公告)日：2024-03-05
申请号：US17439119
申请日：2020-03-12
CPC分类号： G01L7/086 , A61M1/3639
摘要： A pressure measurement system includes a pressure pod with two chambers separated by a diaphragm such that a deformation/movement of the diaphragm is indicative of a difference between the pressures of the two chambers. Such deformation/movement is detected by a device that has no physical contact with the diaphragm, for example, by an optical detector that detects a change in the shape of the diaphragm or a movement of a protrusion on the diaphragm.
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