Patents by Inventor Jason A. Demers
Jason A. Demers 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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Patent number: 11754064Abstract: Described are fluid pumping and fluid handling systems, which may be suitable for use in medical devices, such as artificial or extracorporeal blood pumping systems. The systems can include a dual housing configuration for pneumatic actuation comprising a main housing containing a pump cassette comprising a pneumatically actuated pump and pneumatically actuated valves. The pump can include a pump actuation chamber and pump pneumatic port, and the valves can each include a valve actuation chamber and valve pneumatic port. Connecting tubes can be used to fluidly connect the pump actuation ports and valve actuation ports to a tube-support housing having a first side receiving one end of each connecting tube and a second side providing a pneumatic interface arranged to connect to an array of pneumatic receptacles on a base unit of the system to facilitate easy, compact and accurate pneumatic interconnection between the pump cassette and the base unit.Type: GrantFiled: December 21, 2020Date of Patent: September 12, 2023Assignee: 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: 11738130Abstract: A medical infusion fluid handling system, such as an automated peritoneal dialysis system, may be arranged to de-cap and connect one or more lines (such as solution lines) with one or more spikes or other connection ports on a fluid handling cassette. This feature may reduce a likelihood of contamination since no human interaction is required to de-cap and connect the one or more lines and the one or more spikes. For example, the automated peritoneal dialysis system may include a carriage arranged to receive the one or more lines each having a connector end and a cap. The carriage may move along a first direction so as to move the connector ends of the one or more lines along the first direction, and a cap stripper may be arranged to engage with the caps on the one or more lines on the carriage. The cap stripper may move in a second direction transverse to the first direction, as well as to move with the carriage along the first direction.Type: GrantFiled: January 4, 2022Date of Patent: August 29, 2023Assignee: DEKA Products Limited PartnershipInventors: Simon C. Helmore, David W. McGill, David J. Hibbard, James D. Dale, Matthew J. Finch, Jesse T. Bodwell, Jason A. Demers
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Publication number: 20230256148Abstract: 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: April 24, 2023Publication date: August 17, 2023Applicant: 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: 11725645Abstract: Automated control mechanisms and methods for controlling fluid flow in a hemodialysis apparatus are described. The methods can involve a controller receiving information from a pressure sensor in a control chamber of a reciprocating diaphragm-based blood pump and causing the application of a time-varying pressure waveform on a diaphragm of the blood pump during a fill-stroke of the blood pump. The controller can be configured and programmed to monitor a pressure variation in the control chamber measured by the pressure sensor and to compare the measured pressure variation to a pre-determined value. Based on such comparison, the controller can initiate a procedure to pause or stop a dialysate pump of the hemodialysis apparatus if the magnitude of the measured pressure variation deviates from the pre-determined value.Type: GrantFiled: December 20, 2019Date of Patent: August 15, 2023Assignee: DEKA Products Limited PartnershipInventors: Michael J. Wilt, Dirk A. van der Merwe, James D. Dale, Brian D. Tracey, Kevin L. Grant, Jason A. Demers, Catharine N. Flynn
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Patent number: 11724011Abstract: Dialysis systems comprising actuators that cooperate to perform dialysis functions and sensors that cooperate to monitor dialysis functions are disclosed. According to one aspect, such a hemodialysis system comprises a user interface model layer, a therapy layer, below the user interface model layer, and a machine layer below the therapy layer. The user interface model layer is configured to manage the state of a graphical user interface and receive inputs from a graphical user interface. The therapy layer is configured to run state machines that generate therapy commands based at least in part on the inputs from the graphical user interface. The machine layer is configured to provide commands for the actuators based on the therapy commands.Type: GrantFiled: October 26, 2022Date of Patent: August 15, 2023Assignee: DEKA Products Limited PartnershipInventors: Michael J. Wilt, Todd A. Ballantyne, Jason A. Demers
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Patent number: 11666876Abstract: A system including a containment assembly for enclosing a medication container may comprise a first housing portion or interface portion having a proximal end and a distal end. The interface portion may include a housing wall which defines a channel spanning from the proximal end to the distal end. The channel may be open at the proximal and distal end. The containment assembly may further comprise only two pierceable septa configured to form a barrier to the channel. The containment assembly may further comprise a variable-volume housing portion having a variable volume chamber. The variable-volume portion chamber of the variable-volume housing portion may be in fluid communication with the distal end of the channel.Type: GrantFiled: November 12, 2021Date of Patent: June 6, 2023Assignee: DEKA Products Limited PartnershipInventors: Jason A. Demers, Frederick Morgan
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Patent number: 11666690Abstract: Dialysis systems comprising actuators that cooperate to perform dialysis functions and sensors that cooperate to monitor dialysis functions are disclosed. According to one aspect, such a hemodialysis system comprises a user interface model layer, a therapy layer, below the user interface model layer, and a machine layer below the therapy layer. The user interface model layer is configured to manage the state of a graphical user interface and receive inputs from a graphical user interface. The therapy layer is configured to run state machines that generate therapy commands based at least in part on the inputs from the graphical user interface. The machine layer is configured to provide commands for the actuators based on the therapy commands.Type: GrantFiled: June 15, 2020Date of Patent: June 6, 2023Assignee: DEKA Products Limited PartnershipInventors: Michael J. Wilt, Todd A. Ballantyne, Jason A. Demers
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Publication number: 20230147049Abstract: A fluid connector assembly. The fluid connector assembly includes a tab portion including a slot; a plug portion slidably connected to the tab portion the plug portion comprising a fluid path and a disc, the disc configured to seat within the slot; a catch feature located on a first end of the tab portion and configured to interact with a reservoir; and a latching feature located on a second end of the tab portion, the latching feature configured to interact and lock onto the reservoir, wherein force applied to the plug portion may overcome a threshold force and unseat the disc from the slot wherein the plug portion moves with respect to the tab portion.Type: ApplicationFiled: October 17, 2022Publication date: May 11, 2023Inventors: Kevin L. Grant, Jason A. Demers, Brian D. Tracey, Dean Kamen, Richard J. Lanigan, Gregory R. Lanier, JR., Bright C.K. Foo, Lisa A. Panneton, Thomas F. Soldau, Stephen L. Fichera, David D.B. Cannan
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Patent number: 11633526Abstract: 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: July 2, 2021Date of Patent: April 25, 2023Assignee: 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: 20230119157Abstract: A fluid handling cassette, such as that useable with an automated peritoneal dialysis (APD) cycler device or other infusion apparatus, may include a generally planar body having at least one pump chamber formed as a depression in a first side of the body and a plurality of flowpaths for a fluid that includes a channel. A patient line port may be arranged for connection to a patient line and be in fluid communication with the at least one pump chamber via at least a first one of said flowpaths, and an optional membrane may be attached to the first side of the body over the at least one pump chamber. In one embodiment, the membrane may have a pump chamber portion with an unstressed shape that generally conforms to the depression of the at least one pump chamber in the body and is arranged to be movable for movement of the fluid in a useable space of the at least one pump chamber.Type: ApplicationFiled: October 27, 2022Publication date: April 20, 2023Applicant: DEKA Products Limited PartnershipInventors: David W. McGill, James D. Dale, Simon C. Helmore, Richard J. Lanigan, Jason A. Demers, Dean Kamen
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Publication number: 20230124240Abstract: Dialysis systems comprising actuators that cooperate to perform dialysis functions and sensors that cooperate to monitor dialysis functions are disclosed. According to one aspect, such a hemodialysis system comprises a user interface model layer, a therapy layer, below the user interface model layer, and a machine layer below the therapy layer. The user interface model layer is configured to manage the state of a graphical user interface and receive inputs from a graphical user interface. The therapy layer is configured to run state machines that generate therapy commands based at least in part on the inputs from the graphical user interface. The machine layer is configured to provide commands for the actuators based on the therapy commands.Type: ApplicationFiled: October 26, 2022Publication date: April 20, 2023Applicant: DEKA Products Limited PartnershipInventors: Michael J. Wilt, Todd A. Ballantyne, Jason A. Demers
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Patent number: 11529444Abstract: Dialysis systems comprising actuators that cooperate to perform dialysis functions and sensors that cooperate to monitor dialysis functions are disclosed. According to one aspect, such a hemodialysis system comprises a user interface model layer, a therapy layer, below the user interface model layer, and a machine layer below the therapy layer. The user interface model layer is configured to manage the state of a graphical user interface and receive inputs from a graphical user interface. The therapy layer is configured to run state machines that generate therapy commands based at least in part on the inputs from the graphical user interface. The machine layer is configured to provide commands for the actuators based on the therapy commands.Type: GrantFiled: June 15, 2020Date of Patent: December 20, 2022Assignee: DEKA Products Limited PartnershipInventors: Michael J. Wilt, Todd A. Ballantyne, Jason A. Demers
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Patent number: 11511024Abstract: A fluid handling cassette, such as that useable with an automated peritoneal dialysis (APD) cycler device or other infusion apparatus, may include a generally planar body having at least one pump chamber formed as a depression in a first side of the body and a plurality of flowpaths for a fluid that includes a channel. A patient line port may be arranged for connection to a patient line and be in fluid communication with the at least one pump chamber via at least a first one of said flowpaths, and an optional membrane may be attached to the first side of the body over the at least one pump chamber. In one embodiment, the membrane may have a pump chamber portion with an unstressed shape that generally conforms to the depression of the at least one pump chamber in the body and is arranged to be movable for movement of the fluid in a useable space of the at least one pump chamber.Type: GrantFiled: July 10, 2019Date of Patent: November 29, 2022Assignee: DEKA Products Limited PartnershipInventors: David W. McGill, James D. Dale, Simon C. Helmore, Richard J. Lanigan, Jason A. Demers, Dean Kamen
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Publication number: 20220355006Abstract: A pump cassette is disclosed. The pump cassette includes a housing having at least one fluid inlet line and at least one fluid outlet line. The cassette also includes at least one reciprocating pressure displacement membrane pump within the housing. The pressure pump pumps a fluid from the fluid inlet line to the fluid outlet line. A hollow spike is also included on the housing as well as at least one metering pump. The metering pump is fluidly connected to the hollow spike on the housing and to a metering pump fluid line. The metering pump fluid line is fluidly connected to the fluid outlet line.Type: ApplicationFiled: July 22, 2022Publication date: November 10, 2022Applicant: 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: 11478577Abstract: A fluid handling cassette, such as that useable with an automated peritoneal dialysis (APD) cycler device or other infusion apparatus, may include a generally planar body having at least one pump chamber formed as a depression in a first side of the body and a plurality of flowpaths for a fluid that includes a channel. A patient line port may be arranged for connection to a patient line and be in fluid communication with the at least one pump chamber via at least a first one of said flowpaths, and an optional membrane may be attached to the first side of the body over the at least one pump chamber. In one embodiment, the membrane may have a pump chamber portion with an unstressed shape that generally conforms to the depression of the at least one pump chamber in the body and is arranged to be movable for movement of the fluid in a useable space of the at least one pump chamber.Type: GrantFiled: April 22, 2019Date of Patent: October 25, 2022Assignee: DEKA Products Limited PartnershipInventors: David W. McGill, James D. Dale, Simon C. Helmore, Richard J. Lanigan, Jason A. Demers, Dean Kamen
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Publication number: 20220333056Abstract: A system and method for growing and maintaining biological material including producing a protein associated with the tissue, selecting cells associated with the tissue, expanding the cells, creating at least one tissue bio-ink including the expanded cells, printing the at least one tissue bio-ink in at least one tissue growth medium mixture, growing the tissue from the printed at least one tissue bio-ink, and maintaining viability of the tissue.Type: ApplicationFiled: April 8, 2022Publication date: October 20, 2022Inventors: Christopher C. Langenfeld, David D. B. Cannan, Dirk A. van der Merwe, Dean Kamen, Jason A. Demers, Frederick Morgan, Timothy D. Moreau, Brian D. Tracey, Matthew Ware, Richard J. Lanigan, Michael A. Baker, David Blumberg, JR., Richard E. Andrews, Derek G. Kane, Dane Fawkes, Thomas J. Bollenbach, Michael C. Tilley, Stuart A. Jacobson, John F. Mannisto
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Patent number: 11471594Abstract: A fluid connector assembly. The fluid connector assembly includes a tab portion including a slot; a plug portion slidably connected to the tab portion the plug portion comprising a fluid path and a disc, the disc configured to seat within the slot; a catch feature located on a first end of the tab portion and configured to interact with a reservoir; and a latching feature located on a second end of the tab portion, the latching feature configured to interact and lock onto the reservoir, wherein force applied to the plug portion may overcome a threshold force and unseat the disc from the slot wherein the plug portion moves with respect to the tab portion.Type: GrantFiled: July 3, 2014Date of Patent: October 18, 2022Assignee: DEKA PRODUCTS LIMITED PARTNERSHIPInventors: Kevin L. Grant, Jason A. Demers, Brian D. Tracey, Dean Kamen, Richard J. Lanigan, Gregory R. Lanier, Jr., Bright C. K. Foo, Lisa A. Panneton, Thomas F. Soldau, Stephen L. Fichera, David D. B. Cannan
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Publication number: 20220280706Abstract: A medical treatment system, such as a peritoneal dialysis system, may include a control and other features to enhance patient comfort and ease of use. For example, a cycler device may include a heater bag receiving section and a lid mounted to cover and uncover the heater bag receiving section, potentially enabling faster heating of a dialysate. A user interface may be moveable to be received into the receiving section and covered by the lid, if desired. The system may detect anomalous conditions, such as tilting of a housing of the system, and automatically recover without terminating a treatment. The system may include noise reduction features, such as porting pneumatic outputs to a common chamber, and others. The system may also automatically detect any one of several different solution lines connected to the system, and control operation accordingly, e.g., to mix solutions provided by two or more lines and form a needed dialysate solution.Type: ApplicationFiled: May 23, 2022Publication date: September 8, 2022Applicant: DEKA Products Limited PartnershipInventors: Jason A. Demers, David W. McGill, Jacob W. Scarpaci, James D. Dale, Jesse T. Bodwell, Tien-shoe Wang
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Publication number: 20220273924Abstract: A medical agent delivery device may comprise a laminate of a number of layers coupled together. The device may further comprise a collapsible reservoir within the laminate. The device may further comprise a sharp bearing body having at least one microneedle. The device may further comprise a collar element attached to the sharp bearing body. The device may further comprise a removable cover assembly including a microneedle encasing body coupled to the sharp bearing body and to a release liner. The microneedle encasing body may be attached more weakly to the sharp bearing body than to the release liner.Type: ApplicationFiled: March 1, 2021Publication date: September 1, 2022Inventors: Dean Kamen, Eitan C. Zeira, Jason A. Demers, Brian D. Tracey, Michel A. Rosa, Jack MacLeod
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Publication number: 20220273923Abstract: A medical agent delivery device may comprise a collapsible reservoir and a base portion including at least one microneedle on a first face and on an opposing second face. Each microneedle on the first face may fluidically communicate with a microneedle on the second face. The device may further comprise an elastomeric housing attached to the first face. The reservoir and the at least one microneedle on the first face of the base portion may be within the elastomeric housing. The device may further comprise a displaceable spacer having a first position in which the spacer supports the reservoir in spaced relation to the at least one microneedle on the first side of the base portion. When the spacer is in a second position, the elastomeric housing may be configured to press the reservoir into the at least one microneedle on the first side of the base portion.Type: ApplicationFiled: March 1, 2021Publication date: September 1, 2022Inventors: Eitan C. Zeira, Jason A. Demers, Dean Kamen