Patents by Inventor Kevin L. Grant
Kevin L. Grant 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: 9675750Abstract: A method and device for adjusting the unstored length of tubing directed to improving the use of infusion sets that deliver fluids to a user. The device includes a storage module and other features for adjusting, storing and securing the length of the tubing. The method of adjusting the length of the tubing to a desired length typically comprises removably attaching the tubing to the adjuster, adjusting the tubing by wrapping the tubing around a hub or post of the adjuster, and fixing the length of the unstored tubing by attaching the tubing to a securing device such as a friction structure or fastener.Type: GrantFiled: August 10, 2015Date of Patent: June 13, 2017Assignee: DEKA Products Limited PartnershipInventors: Kevin L. Grant, Larry B. Gray, Matthew C. Harris, Jeffrey L. Klein, Craig R. Steinfels, Brian D. Tracey
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Publication number: 20170143886Abstract: Dialysis systems are disclosed comprising new fluid flow circuits. Systems may include blood and dialysate flow paths, where the dialysate flow path includes balancing, mixing, and/or directing circuits. Dialysate preparation may be decoupled from patient dialysis. Circuits may be defined within one or more cassettes. The fluid circuit fluid flow paths may be isolated from electrical components. A gas supply in fluid communication with the dialysate flow path and/or the dialyzer able to urge dialysate through the dialyzer and urge blood back to the patient may be included for certain emergency situations. Fluid handling devices, such as pumps, valves, and mixers that can be actuated using a control fluid may be included. Control fluid may be delivered by an external pump or other device, which may be detachable and/or generally rigid, optionally with a diaphragm dividing the device into first and second compartments.Type: ApplicationFiled: February 3, 2017Publication date: May 25, 2017Applicant: DEKA Products Limited PartnershipInventors: MICHAEL J. WILT, DIRK A. VAN DER MERWE, TODD A. BALLANTYNE, KEVIN L. GRANT, JONATHAN P. ROSSE, CATHARINE N. FLYNN, BRIAN K. YEE
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Patent number: 9649418Abstract: A pump cassette is disclosed. The pump cassette includes housing. The housing includes at least one fluid inlet line and at least one fluid outlet line. Also, the cassette includes at least one reciprocating pressure displacement membrane pump within the housing. The pressure pump pumps at least one fluid from the fluid inlet line to at least one of the fluid outlet line. Also, the cassette includes at least one mixing chamber within the housing. The mixing chamber is fluidly connected to the fluid outlet line.Type: GrantFiled: January 17, 2012Date of Patent: May 16, 2017Assignee: 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: 20170130705Abstract: 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: January 23, 2017Publication date: May 11, 2017Applicant: 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: 20170112989Abstract: 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: ApplicationFiled: January 6, 2017Publication date: April 27, 2017Applicant: DEKA PRODUCTS LIMITED PARTNERSHIPInventors: KEVIN L. GRANT, JASON A. DEMERS, JAMES D. DALE, ARUN D. CHAWAN, DAVID E. COLLINS
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Publication number: 20170100533Abstract: Disclosed are hemodialysis and similar dialysis systems including fluid flow circuits. Hemodialysis systems may include a blood flow path, and a dialysate flow path including balancing, mixing, and/or a directing circuits. Preparation of dialysate may be decoupled from patient dialysis. Circuits may be defined within one or more cassettes. The fluid circuit and/or the various fluid flow paths may be isolated from electrical components. A gas supply may be provided that, when activated, is able to urge dialysate through the dialyzer and blood back to the patient. Such a system may be useful during a power failure. The hemodialysis system may also include fluid handling devices, such as pumps, valves, mixers, etc., actuated using a control fluid. The control fluid may be delivered to the fluid handling devices using a detachable external pump. The fluid handling devices may have a spheroid shape with a diaphragm dividing it into two compartments.Type: ApplicationFiled: December 21, 2016Publication date: April 13, 2017Applicant: DEKA Products Limited PartnershipInventors: Michael J. Wilt, Jason A. Demers, Kevin L. Grant, Brian D. Tracey, James D. Dale
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Patent number: 9617020Abstract: A filling aid. The filling aid includes a locking portion including a groove feature; and a locking feature having a locked and an unlocked position; and a filling syringe holder slidably attached to the locking portion, the filling syringe holder including a filling needle cradle portion having a tongue feature; and a needle housing portion comprising at least one tab having a starting position and a filling position, wherein the groove feature configured to accommodate the tongue feature, and wherein the locking feature interact with the filling syringe holder wherein when the locking feature moves from the locked position to the unlocked position the needle housing portion moves from the starting position to the filling position.Type: GrantFiled: July 3, 2014Date of Patent: April 11, 2017Assignee: DEKA Products Limited PartnershipInventors: Richard J. Lanigan, Kevin L. Grant, Lisa A. Gustin, Timothy D. Moreau
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Patent number: 9603996Abstract: A medical system includes an input assembly for receiving one or more user inputs. The input assembly includes at least one slider assembly for providing an input signal. Processing logic receives the input signal from the input assembly and provides a first output signal and a second output signal. A display assembly is configured to receive, at least in part, the first output signal from the processing logic and render information viewable by the user. The second output signal is provided to one or more medical system components. The information rendered on the display assembly may be manipulatable by the user and at least a portion of the information rendered may be magnified.Type: GrantFiled: September 14, 2015Date of Patent: March 28, 2017Assignee: DEKA Products Limited PartnershipInventors: Kevin L. Grant, Douglas J. Young, Matthew C. Harris
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Publication number: 20170078583Abstract: An endoscope and related method comprise a proximal handle and a distal shaft having an insertion end. A housing comprising a camera assembly may be mounted on an insertion end of the shaft and include at least one lens and an image sensor. The camera assembly housing is rotatable about an axis perpendicular to the long axis of the shaft, giving the camera assembly a variable field of view. The rotatable camera assembly housing may be mounted to the insertion end of the shaft so that the rotatable housing of the camera assembly comprises the distal-most element of the endoscope shaft or insertion end. The endoscope may include a circuit board having a first portion disposed within the proximal handle and one or more extension portions that extend within the shaft to the camera assembly and/or to a light source near the distal end of the shaft.Type: ApplicationFiled: August 31, 2016Publication date: March 16, 2017Inventors: Andrew M. Haggerty, Kevin L. Grant, Peter K. Vondras, Timothy D. Moreau, Jason A. Demers, Daniel B. Davis
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Publication number: 20170056577Abstract: An infusion pump assembly is disclosed. The infusion pump assembly includes a locking tab and a pump barrel inside a pump barrel housing, where the pump barrel accommodates a reservoir assembly. The reservoir assembly includes a reservoir and a plunger rod. The infusion pump assembly also includes a locking disc at a terminus of the pump barrel. The locking disc includes a clearance hole for the plunger rod. The locking disc also includes at least one locking tab notch in close proximity with the locking tab. The locking tab is in moveable engagement with the locking tab notch, and the reservoir moves the locking tab from a locked position to an unlocked position when the plunger rod is inserted through clearance hole. The locking disc rotates upon torque being applied to the reservoir assembly, the locking disc rotating from a non-loaded position to a loaded position with respect to the plunger rod and a drive screw.Type: ApplicationFiled: November 14, 2016Publication date: March 2, 2017Inventors: Richard J. Lanigan, Kevin L. Grant, Brian D. Tracey
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Patent number: 9555179Abstract: Disclosed are hemodialysis and similar dialysis systems including fluid flow circuits. Hemodialysis systems may include a blood flow path, and a dialysate flow path including balancing, mixing, and/or a directing circuits. Preparation of dialysate may be decoupled from patient dialysis. Circuits may be defined within one or more cassettes. The fluid circuit and/or the various fluid flow paths may be isolated from electrical components. A gas supply may be provided that, when activated, is able to urge dialysate through the dialyzer and blood back to the patient. Such a system may be useful during a power failure. The hemodialysis system may also include fluid handling devices, such as pumps, valves, mixers, etc., actuated using a control fluid. The control fluid may be delivered to the fluid handling devices using a detachable external pump. The fluid handling devices may have a spheroid shape with a diaphragm dividing it into two compartments.Type: GrantFiled: April 25, 2014Date of Patent: January 31, 2017Assignee: DEKA Products Limited PartnershipInventors: Michael J. Wilt, Jason A. Demers, Kevin L. Grant, Brian D. Tracey, James D. Dale
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Patent number: 9550018Abstract: 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: GrantFiled: February 29, 2016Date of Patent: January 24, 2017Assignee: 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: 20170007779Abstract: An infusion pump assembly includes a locking tab and a pump barrel inside a pump barrel housing, where the pump barrel accommodates a reservoir assembly. The reservoir assembly includes a reservoir and a plunger rod. The infusion pump assembly also includes a locking disc at a terminus of the pump barrel. The locking disc includes a clearance hole for the plunger rod. The locking disc also includes at least one locking tab notch in close proximity with the locking tab. The locking tab is in moveable engagement with the locking tab notch, and the reservoir moves the locking tab from a locked position to an unlocked position when the plunger rod is inserted through clearance hole. The locking disc rotates upon torque being applied to the reservoir assembly, the locking disc rotating from a non-loaded position to a loaded position with respect to the plunger rod and a drive screw.Type: ApplicationFiled: September 19, 2016Publication date: January 12, 2017Inventors: Kevin L. Grant, Brian L. Tracey, Marc Aurele Mandro, Robert John Bryant, JR.
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Patent number: 9539379Abstract: 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: March 8, 2013Date of Patent: January 10, 2017Assignee: DEKA Products Limited PartnershipInventors: Kevin L. Grant, Jason A. Demers, James D. Dale, Arun D. Chawan, David E. Collins
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Publication number: 20170000938Abstract: The present invention generally relates to hemodialysis and similar dialysis systems, including a variety of systems and methods that would make hemodialysis more efficient, easier, and/or more affordable. One aspect of the invention is generally directed to new fluid circuits for fluid flow. According to one aspect, a blood pump is configured to pump blood to a dialyzer of a hemodialysis apparatus, the blood pump comprising a pneumatically actuated or controlled reciprocating diaphragm pump. In an embodiment, the diaphragm of the pump comprises a flexible membrane formed or molded to generally conform to a curved inner wall of a pumping chamber or control chamber of the pump, wherein the diaphragm is pre-formed or molded to have a control side taking a convex shape, so that any elastic tension on the diaphragm is minimized when fully extended into a control chamber of the pump.Type: ApplicationFiled: June 30, 2016Publication date: January 5, 2017Applicant: DEKA Products Limited PartnershipInventors: Michael J. Wilt, James D. Dale, Brian D. Tracey, Kevin L. Grant, Jason A. Demers
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Patent number: 9535021Abstract: A sensor apparatus and sensor apparatus system for use in conjunction with a cassette, including a disposable or replaceable cassette. In some embodiments, the cassette includes a thermal well for permitting the sensing of various properties of a subject media. The thermal well includes a hollow housing of a thermally conductive material. In other embodiments, the cassette includes sensor leads for sensing of various properties of a subject media. The thermal well has an inner surface shaped so as to form a mating relationship with a sensing probe. The mating thermally couples the inner surface with a sensing probe. In some embodiments, the thermal well is located on a disposable portion and the sensing probe on a reusable portion.Type: GrantFiled: March 30, 2015Date of Patent: January 3, 2017Assignee: DEKA Products Limited PartnershipInventors: Dean Kamen, N. Christopher Perry, Jason A. Demers, Brian D. Tracey, Arun D. Chawan, Kevin L. Grant
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Publication number: 20160367753Abstract: An infusion device. The infusion device includes a top portion comprising an introduction needle, and a bottom portion comprising a cannula, the top portion removably attached to the bottom portion, wherein the introduction needle is used to insert the cannula, and wherein after insertion, the top portion is removed from the bottom portion.Type: ApplicationFiled: January 15, 2016Publication date: December 22, 2016Inventors: Dean Kamen, Kevin L. Grant
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Patent number: 9517295Abstract: Dialysis systems are disclosed comprising new fluid flow circuits. Systems may include blood and dialysate flow paths, where the dialysate flow path includes balancing, mixing, and/or directing circuits. Dialysis systems may include a safety system utilizing a field programmable gate array (FPGA) that monitors at least conductivity and temperature of dialysate in the flow circuit upstream of a dialyzer and enters a fail-safe state if the measured conductivity is outside of a range of values. The FPGA may be verified to be operating properly by exposing sensors in fluid paths to temperatures or conductivities that are outside pre-determined permissible ranges of values, and confirming that the FPGA safety system enters a fail-safe state in response to the temperatures or conductivities. The FPGA may be configured to monitor an amount of ultrafiltration fluid withdrawn from a patient during dialysis treatment and to enter a fail-safe state if a maximum amount is exceeded.Type: GrantFiled: May 24, 2012Date of Patent: December 13, 2016Assignee: DEKA Products Limited PartnershipInventors: Michael J. Wilt, Dirk A. van der Merwe, Todd A. Ballantyne, Kevin L. Grant, Jonathan P. Rosse, Catharine N. Flynn, Brian K. Yee
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Patent number: 9492611Abstract: An infusion pump assembly is disclosed. The infusion pump assembly includes a locking tab and a pump barrel inside a pump barrel housing, where the pump barrel accommodates a reservoir assembly. The reservoir assembly includes a reservoir and a plunger rod. The infusion pump assembly also includes a locking disc at a terminus of the pump barrel. The locking disc includes a clearance hole for the plunger rod. The locking disc also includes at least one locking tab notch in close proximity with the locking tab. The locking tab is in moveable engagement with the locking tab notch, and the reservoir moves the locking tab from a locked position to an unlocked position when the plunger rod is inserted through clearance hole. The locking disc rotates upon torque being applied to the reservoir assembly, the locking disc rotating from a non-loaded position to a loaded position with respect to the plunger rod and a drive screw.Type: GrantFiled: February 23, 2015Date of Patent: November 15, 2016Assignee: DEKA Prouducts Limited PartnershipInventors: Richard J. Lanigan, Kevin L. Grant, Brian D. Tracey
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Patent number: 9486572Abstract: An infusion pump assembly includes a locking tab and a pump barrel inside a pump barrel housing, where the pump barrel accommodates a reservoir assembly. The reservoir assembly includes a reservoir and a plunger rod. The infusion pump assembly also includes a locking disc at a terminus of the pump barrel. The locking disc includes a clearance hole for the plunger rod. The locking disc also includes at least one locking tab notch in close proximity with the locking tab. The locking tab is in moveable engagement with the locking tab notch, and the reservoir moves the locking tab from a locked position to an unlocked position when the plunger rod is inserted through clearance hole. The locking disc rotates upon torque being applied to the reservoir assembly, the locking disc rotating from a non-loaded position to a loaded position with respect to the plunger rod and a drive screw.Type: GrantFiled: September 15, 2014Date of Patent: November 8, 2016Assignee: DEKA Products Limited PartnershipInventors: Kevin L. Grant, Brian D. Tracey