Patents by Inventor James D. Dale
James D. Dale has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20210332813Abstract: A cassette integrated system. The cassette integrated system includes a mixing cassette, a balancing cassette, a middle cassette fluidly connected to the mixing cassette and the balancing cassette and at least one pod. The mixing cassette is fluidly connected to the middle cassette by at least one fluid line and the middle cassette is fluidly connected to the balancing cassette by at least one fluid line. The at least one pod is connected to at least two of the cassettes wherein the pod is located in an area between the cassettes.Type: ApplicationFiled: July 2, 2021Publication date: October 28, 2021Applicant: DEKA Products Limited PartnershipInventors: Michael J. Wilt, Kevin L. Grant, James D. Dale, Jason A. Demers, Brian D. Tracey
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Patent number: 11154646Abstract: Hemodialysis systems are described. A hemodialysis system may include a dialysate flow path through which dialysate is passed from a dialysate reservoir, which includes a valved vent to atmosphere, to an ultrafilter. The dialysate flow path includes a pneumatically actuated diaphragm-based dialysate pump for pumping fluid from the dialysate reservoir to the ultrafilter. The hemodialysis system may include a controller for controlling pneumatic actuation pressure delivered to the dialysate pump and at least one valve connecting the dialysate reservoir vent to the atmosphere. The hemodialysis system may be configured to actuate the dialysate pump and the at least one valve to introduce air into the dialysate flow path and expel liquid from the dialysate flow path to a drain.Type: GrantFiled: October 21, 2019Date of Patent: October 26, 2021Assignee: DEKA Products Limited PartnershipInventors: Michael J. Wilt, Jason A. Demers, Kevin L. Grant, Brian D. Tracey, James D. Dale
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Publication number: 20210290928Abstract: An occlusion assembly for compressing a pair of collapsible tubes comprises a frame comprising a tubing guide configured for positioning the collapsible tube. The occlusion assembly also comprises a tubing occluder mounted to the frame with an occluding member constructed and positioned to controllably occlude or release occlusion of the collapsible tube. A door mounted to the frame is positioned to cover at least a portion of the collapsible tube and tubing occluder when closed and provide user access when open. The assembly includes a retainer mechanism engaged by the door when the door is closed to permit operation of the tubing occluder when the door is closed and retain the tubing occluder in a non-occluding configuration when the door is opened.Type: ApplicationFiled: November 30, 2020Publication date: September 23, 2021Applicant: DEKA Products Limited PartnershipInventors: Kevin L. Grant, Brett A. Rudolf, James D. Dale, Jesse T. Bodwell
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Publication number: 20210285435Abstract: Embodiments of the present invention relate generally to certain types of reciprocating positive-displacement pumps (which may be referred to hereinafter as “pods,” “pump pods,” or “pod pumps”) used to pump fluids, such as a biological fluid (e.g., blood or peritoneal fluid), a therapeutic fluid (e.g., a medication solution), or a surfactant fluid. The pumps may be configured specifically to impart low shear forces and low turbulence on the fluid as the fluid is pumped from an inlet to an outlet. Such pumps may be particularly useful in pumping fluids that may be damaged by such shear forces (e.g., blood, and particularly heated blood, which is prone to hemolysis) or turbulence (e.g., surfectants or other fluids that may foam or otherwise be damaged or become unstable in the presence of turbulence).Type: ApplicationFiled: December 21, 2020Publication date: September 16, 2021Applicant: DEKA Products Limited PartnershipInventors: Brian D. Tracey, Larry B. Gray, Jason A. Demers, James D. Dale, N Christopher Perry, Michael J. Wilt, Scott A. Leonard
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Patent number: 11110212Abstract: A blood circuit assembly for a dialysis unit may include an organizing tray, a pair of pneumatic pumps mounted to the organizing tray for circulating blood received from a patient through a circuit including a dialyzer unit and returned to the patient, an air trap mounted to the organizing tray arranged to remove air from blood circulating in the circuit, a pair of dialyzer connections arranged to connect to the inlet and outlet of a dialyzer unit, and a pair of blood line connectors, one inlet blood line connector for receiving blood from the patient and providing blood to the pneumatic pumps and the other outlet blood line connector for returning blood to the patient.Type: GrantFiled: December 9, 2019Date of Patent: September 7, 2021Assignee: DEKA Products Limited PartnershipInventors: Kevin L. Grant, James D. Dale, Michael J. Wilt, Jason A. Demers, David E. Collins, Brian D. Tracey
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Publication number: 20210228793Abstract: A medical treatment system, such as peritoneal dialysis system, may include control and other features to enhance patient comfort and ease of use. For example, a peritoneal dialysis system may include a control system that can adjust the volume of fluid infused into the peritoneal cavity to prevent the intraperitoneal fluid volume from exceeding a pre-determined amount. The control system can adjust by adding one or more therapy cycles, allowing for fill volumes during each cycle to be reduced. The control system may continue to allow the fluid to drain from the peritoneal cavity as completely as possible before starting the next therapy cycle. The control system may also adjust the dwell time of fluid within the peritoneal cavity during therapy cycles in order to complete a therapy within a scheduled time period.Type: ApplicationFiled: January 4, 2021Publication date: July 29, 2021Applicant: DEKA Products Limited PartnershipInventors: Jacob W. Scarpaci, Robert J. Bryant, JR., Geoffrey P. Spencer, David J. Hibbard, James D. Dale, John M. Kerwin, Andrew S. Coll, David A. Beavers, David W. Mcgill, Simon C. Helmore
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Patent number: 11052181Abstract: A cassette integrated system. The cassette integrated system includes a mixing cassette, a balancing cassette, a middle cassette fluidly connected to the mixing cassette and the balancing cassette and at least one pod. The mixing cassette is fluidly connected to the middle cassette by at least one fluid line and the middle cassette is fluidly connected to the balancing cassette by at least one fluid line. The at least one pod is connected to at least two of the cassettes wherein the pod is located in an area between the cassettes.Type: GrantFiled: October 9, 2020Date of Patent: July 6, 2021Assignee: DEKA Products Limited PartnershipInventors: Michael J. Wilt, Kevin L. Grant, James D. Dale, Jason A. Demers, Brian D. Tracey
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Publication number: 20210146028Abstract: A pumping cassette including a housing having at least two inlet fluid lines and at least two outlet fluid lines. At least one balancing pod within the housing and in fluid connection with the fluid paths. The balancing pod balances the flow of a first fluid and the flow of a second fluid such that the volume of the first fluid equals the volume of the second fluid. The balancing pod also includes a membrane that forms two balancing chambers. Also included in the cassette is at least two reciprocating pressure displacement membrane pumps. The pumps are within the housing and they pump the fluid from a fluid inlet to a fluid outlet line and pump the second fluid from a fluid inlet to a fluid outlet.Type: ApplicationFiled: November 30, 2020Publication date: May 20, 2021Applicant: DEKA Products Limited PartnershipInventors: Jason A. Demers, Michael J. Wilt, Kevin L. Grant, James D. Dale, Brian D. Tracey
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Publication number: 20210093770Abstract: A cassette integrated system. The cassette integrated system includes a mixing cassette, a balancing cassette, a middle cassette fluidly connected to the mixing cassette and the balancing cassette and at least one pod. The mixing cassette is fluidly connected to the middle cassette by at least one fluid line and the middle cassette is fluidly connected to the balancing cassette by at least one fluid line. The at least one pod is connected to at least two of the cassettes wherein the pod is located in an area between the cassettes.Type: ApplicationFiled: October 9, 2020Publication date: April 1, 2021Applicant: DEKA Products Limited PartnershipInventors: Michael J. Wilt, Kevin L. Grant, James D. Dale, Jason A. Demers, Brian D. Tracey
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Publication number: 20210060231Abstract: A drain cassette for a dialysis unit has a fluid channel between venous and arterial connection ports, and a valve may controllably open and close fluid communication between a drain outlet port and the venous connection port or the arterial connection port. A blood circuit assembly and drain cassette may be removable from the dialysis unit, e.g., by hand and without the use of tools. A blood circuit assembly may include a single, unitary member that defines portions of a pair of blood pumps, control valves, channels to accurately position flexible tubing for an occluder, an air trap support, and/or other portions of the assembly. A blood circuit assembly engagement device may assist with retaining a blood circuit assembly on the dialysis unit, and/or with removal of the assembly. An actuator may operate a retainer element and an ejector element that interact with the assembly.Type: ApplicationFiled: September 21, 2020Publication date: March 4, 2021Applicant: DEKA Products Limited PartnershipInventors: Kevin L. Grant, Michael J. Wilt, Brian D. Tracey, Brett A. Rudolf, David E. Collins, Lisa A. Gustin, James D. Dale, Jesse T. Bodwell
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Patent number: 10881778Abstract: A medical treatment system, such as peritoneal dialysis system, may include control and other features to enhance patient comfort and ease of use. For example, a peritoneal dialysis system may include a control system that can adjust the volume of fluid infused into the peritoneal cavity to prevent the intraperitoneal fluid volume from exceeding a pre-determined amount. The control system can adjust by adding one or more therapy cycles, allowing for fill volumes during each cycle to be reduced. The control system may continue to allow the fluid to drain from the peritoneal cavity as completely as possible before starting the next therapy cycle. The control system may also adjust the dwell time of fluid within the peritoneal cavity during therapy cycles in order to complete a therapy within a scheduled time period.Type: GrantFiled: May 29, 2018Date of Patent: January 5, 2021Assignee: DEKA Products Limited PartnershipInventors: Jacob W. Scarpaci, Robert J. Bryant, Jr., Geoffrey P. Spencer, David J. Hibbard, James D. Dale, John M. Kerwin, Andrew S. Coll, David A. Beavers, David W. McGill, Simon C. Helmore
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Patent number: 10871157Abstract: Embodiments of the present invention relate generally to certain types of reciprocating positive-displacement pumps (which may be referred to hereinafter as “pods,” “pump pods,” or “pod pumps”) used to pump fluids, such as a biological fluid (e.g., blood or peritoneal fluid), a therapeutic fluid (e.g., a medication solution), or a surfactant fluid. The pumps may be configured specifically to impart low shear forces and low turbulence on the fluid as the fluid is pumped from an inlet to an outlet. Such pumps may be particularly useful in pumping fluids that may be damaged by such shear forces (e.g., blood, and particularly heated blood, which is prone to hemolysis) or turbulence (e.g., surfectants or other fluids that may foam or otherwise be damaged or become unstable in the presence of turbulence).Type: GrantFiled: May 24, 2019Date of Patent: December 22, 2020Assignee: DEKA Products Limited PartnershipInventors: Brian D. Tracey, Larry B. Gray, Jason A. Demers, James D. Dale, N. Christopher Perry, Michael J. Wilt, Scott A. Leonard
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Patent number: 10851769Abstract: A pumping cassette including a housing having at least two inlet fluid lines and at least two outlet fluid lines. At least one balancing pod within the housing and in fluid connection with the fluid paths. The balancing pod balances the flow of a first fluid and the flow of a second fluid such that the volume of the first fluid equals the volume of the second fluid. The balancing pod also includes a membrane that forms two balancing chambers. Also included in the cassette is at least two reciprocating pressure displacement membrane pumps. The pumps are within the housing and they pump the fluid from a fluid inlet to a fluid outlet line and pump the second fluid from a fluid inlet to a fluid outlet.Type: GrantFiled: September 17, 2018Date of Patent: December 1, 2020Assignee: DEKA Products Limited PartnershipInventors: Jason A. Demers, Michael J. Wilt, Kevin L. Grant, James D. Dale, Brian D. Tracey
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Patent number: 10850089Abstract: An occlusion assembly for compressing a pair of collapsible tubes comprises a frame comprising a tubing guide configured for positioning the collapsible tube. The occlusion assembly also comprises a tubing occluder mounted to the frame with an occluding member constructed and positioned to controllably occlude or release occlusion of the collapsible tube. A door mounted to the frame is positioned to cover at least a portion of the collapsible tube and tubing occluder when closed and provide user access when open. The assembly includes a retainer mechanism engaged by the door when the door is closed to permit operation of the tubing occluder when the door is closed and retain the tubing occluder in a non-occluding configuration when the door is opened.Type: GrantFiled: June 29, 2017Date of Patent: December 1, 2020Assignee: DEKA Products Limited PartnershipInventors: Kevin L. Grant, Brett A. Rudolf, James D. Dale, Jesse T. Bodwell
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Patent number: 10799628Abstract: A cassette integrated system. The cassette integrated system includes a mixing cassette, a balancing cassette, a middle cassette fluidly connected to the mixing cassette and the balancing cassette and at least one pod. The mixing cassette is fluidly connected to the middle cassette by at least one fluid line and the middle cassette is fluidly connected to the balancing cassette by at least one fluid line. The at least one pod is connected to at least two of the cassettes wherein the pod is located in an area between the cassettes.Type: GrantFiled: June 12, 2017Date of Patent: October 13, 2020Assignee: DEKA Products Limited PartnershipInventors: Michael J. Wilt, Kevin L. Grant, James D. Dale, Jason A. Demers, Brian D. Tracey
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Patent number: 10780210Abstract: An enclosure for containing a portable hemodialysis unit includes a housing suitable to support components for performing hemodialysis including a dialyzer, one or more pumps to circulate blood through the dialyzer, a source of dialysate, and one or more pumps to circulate the dialysate through the dialyzer. The housing may have a front panel at which blood circuit connections and dialysate fluidic connections are located, e.g., blood line connections for patient blood access, connections for a reagent supply, dialyzer connections for both blood flow and dialysate, etc. The enclosure may also include a pair of vertical, side-by-side doors hingedly mounted to the housing. With the doors in the closed position, access to the patient access and dialysate fluidic connections may be blocked, and the doors may allow for the retention of heat in the housing suitable for disinfection during a disinfection cycle.Type: GrantFiled: October 20, 2017Date of Patent: September 22, 2020Assignee: DEKA Products Limited PartnershipInventors: Kevin L. Grant, Jason A. Demers, James D. Dale, Arun D. Chawan, David E. Collins
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Patent number: 10780213Abstract: A drain cassette for a dialysis unit has a fluid channel between venous and arterial connection ports, and a valve may controllably open and close fluid communication between a drain outlet port and the venous connection port or the arterial connection port. A blood circuit assembly and drain cassette may be removable from the dialysis unit, e.g., by hand and without the use of tools. A blood circuit assembly may include a single, unitary member that defines portions of a pair of blood pumps, control valves, channels to accurately position flexible tubing for an occluder, an air trap support, and/or other portions of the assembly. A blood circuit assembly engagement device may assist with retaining a blood circuit assembly on the dialysis unit, and/or with removal of the assembly. An actuator may operate a retainer element and an ejector element that interact with the assembly.Type: GrantFiled: August 7, 2017Date of Patent: September 22, 2020Assignee: DEKA Products Limited PartnershipInventors: Kevin L. Grant, Michael J. Wilt, Brian D. Tracey, Brett A. Rudolf, David E. Collins, Lisa A. Gustin, James D. Dale, Jesse T. Bodwell
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Publication number: 20200282124Abstract: A blood circuit assembly for a dialysis unit may include an organizing tray, a pair of pneumatic pumps mounted to the organizing tray for circulating blood received from a patient through a circuit including a dialyzer unit and returned to the patient, an air trap mounted to the organizing tray arranged to remove air from blood circulating in the circuit, a pair of dialyzer connections arranged to connect to the inlet and outlet of a dialyzer unit, and a pair of blood line connectors, one inlet blood line connector for receiving blood from the patient and providing blood to the pneumatic pumps and the other outlet blood line connector for returning blood to the patient.Type: ApplicationFiled: December 9, 2019Publication date: September 10, 2020Applicant: DEKA Products Limited PartnershipInventors: Kevin L. Grant, James D. Dale, Michael J. Wilt, Jason A. Demers, David E. Collins, Brian D. Tracey
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Patent number: D905848Type: GrantFiled: January 28, 2016Date of Patent: December 22, 2020Assignee: DEKA Products Limited PartnershipInventors: James L. Sloss, Brian H. Yoo, Stephen L. Fichera, James D. Dale
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Patent number: D943736Type: GrantFiled: August 24, 2016Date of Patent: February 15, 2022Assignee: DEKA Products Limited PartnershipInventors: James L. Sloss, Brian H. Yoo, Stephen L. Fichera, James D. Dale