# US 8,784,358 B2 · Intelligent automatic peritoneal dialysis > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,784,358 B2 - Document ID: US8784358B2 - Status: Granted - Kind: B2 - Application number: 13/015,476 - Filed: 2011-01-27 - Published: 2011-07-28 - Granted: 2014-07-22 - Earliest claimed: 2010-01-27 - Applicants: Ta-Lun Tan - Inventors: Ta-Lun Tan - Web page: https://patentgrep.com/patent/US8784358B2 ## CPC - A61M 1/28: Peritoneal dialysis {; Other peritoneal treatment, e.g. oxygenation} - A61M 1/282: {Operational modes} - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract An intelligent automatic peritoneal dialysis device injects a dialysate accommodated in a dialysate container into a live animal via an input duct, elicits a waste liquid from the animal via an output duct, and concentrates the waste liquid in a waste liquid container. A flow direction control valve controls the flow direction of the dialysate and the waste liquid during the overall peritoneal dialysis treatment process. ## Claims ### Claim 1 An intelligent automatic peritoneal dialysis device for delivering adialysate accommodated in a dialysate container into a live animal and removing a waste liquid from the animal into a waste liquid container, the intelligent automatic peritoneal dialysis device comprising: a flow direction control valve for controlling a flow direction of the dialysate and the waste liquid, the flow direction control valve having a first valve, a second valve and a third valve; an input duct connected to a dialysate container and the first valve, wherein the input duct causes dialysate flow from the dialysate container into the flow direction control valve; an output duct connected to a waste liquid container and the second valve, wherein the output duct causes waste liquid flow from the flow direction control valve into the waste liquid container; a communication duct having a first end directly connected to the input duct and a second end directly connected to the output duct, wherein the third valve is disposed in the communication duct, the first valve is in fluid communication with the dialysate container without passing through any of the second valve and the third valve, the second valve is in fluid communication with the waste liquid container without passing through any of the first valve and the third valve, and the third valve is in fluid communication with the dialysate container and the waste liquid container without passing through any of the first valve and the second valve; a first motor disposed between the dialysate container and the input duct such that the dialysate may flow from the dialysate container to the input duct by operation of the first motor; and a second motor disposed between the waste liquid container and the output duct such that the waste liquid may flow from the output duct to the waste liquid container by operation of the second motor; a first duct directly connected to the first valve and capable of being connected to the animal; and a second duct connected to the second valve and capable of being connected to the animal. ### Claim 2 (depends on 1) The device of claim 1, further comprising: a first pressure sensor disposed in the first duct, for monitoring a pressure of the animal to regulate an operation speed of the first motor; and a second pressure sensor disposed in the second duct, the second pressure for monitoring the pressure of the animal to regulate an operation speed of the second motor. ### Claim 3 (depends on 1) The device of claim 1, further comprising a flow sensor disposed in the output duct, wherein the flow sensor monitors a flow of the waste liquid so as to regulate an operation speed of the second motor. ### Claim 4 (depends on 1) The device of claim 1, further comprising: a first air sensor disposed in the input duct, wherein the first air sensor monitors whether the dialysate flowing through the input duct contains air or not; and a second air sensor disposed in the output duct, wherein the second air sensor monitors whether the waste liquid flowing through the output duct contains air or not. ### Claim 5 (depends on 1) The device of claim 1, further comprising a Y-type duct joint having one end connected to the first duct and the second duct and the other end for extending into the animal. ### Claim 6 (depends on 1) A method of operating the device of claim 1, the method comprising: (a) opening the first valve and the second valve while closing the third valve; (b) causing the dialysate from the dialysate container to flow through the input duct, the first valve and the first duct and be injected into the animal; and (c) causing the waste liquid from the animal to flow through the second duct, the second valve and the output duct and be injected into the waste liquid container. ### Claim 7 (depends on 1) A method of operating the device of claim 1, the method comprising: (a) closing the first valve while opening the second valve and the third valve; (b) causing the dialysate from the dialysate container to flow through the input duct, the communication duct, the third valve, the second valve and the second duct and be injected into the animal; (c) opening the first valve and the third valve while closing the second valve; and (d) causing the waste liquid from the animal to flow through the first duct, the first valve, the communication duct, the third valve and the output duct and be injected into the waste liquid container. ### Claim 8 (depends on 1) A method of operating the device of claim 1, the method comprising: (a) opening the first valve while closing the second valve and the third valve; (b) causing the dialysate from the dialysate container to flow through the input duct, the first valve and the first duct and be injected into the animal; (c) opening the first valve, the second valve and the third valve; and (d) causing the waste liquid from the animal to flow through the first duct, the first valve, the communication duct, the third valve and the output duct and be injected into the waste liquid container while at the same time, the waste liquid from the animal can also flow through the second duct, the second valve and the output duct and be injected into the waste liquid container. ### Claim 9 (depends on 1) A method of operating the device of claim 1, the method comprising: (a) closing the first valve while opening the second valve and the third valve; (b) causing the dialysate from the dialysate container to flow through the input duct, the third valve, the second valve and the second duct and be injected into the animal; (c) opening the first valve, the second valve and the third valve; and (d) causing the waste liquid from the animal to flow through the first duct, the first valve, the communication duct, the third valve and the output duct and be injected into the waste liquid container while at the same time, the waste liquid from the animal can also flow through the second duct, the second valve and the output duct and be injected into the waste liquid container. ### Claim 10 (depends on 1) A method of operating the device of claim 1, the method comprising: (a) controlling the flow direction control valve such that at least one of the first valve, the second valve and the third valve is an opening valve; (b) causing the dialysate from the dialysate container to flow through the input duct, the flow direction control valve, and at least one of the first duct and the second duct and be injected into the animal; and (c) causing the waste liquid from the animal to flow through at least one of the first duct and the second duct, the flow direction control valve, and the output duct and be injected into the waste liquid container.