Patents Assigned to MiniPumps, LLC
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Patent number: 9550023Abstract: A removable material is deposited or otherwise applied to a flat substrate surface in a pattern corresponding to desired corrugations in a membrane, e.g., a deflection diaphragm. The applied material serves as a scaffold for a polymeric material, which is applied thereover, and following cure or hardening, the polymeric material is removed to form a finished corrugated membrane.Type: GrantFiled: June 27, 2014Date of Patent: January 24, 2017Assignee: MiniPumps, LLCInventors: Changlin Pang, Jason Shih, Fukang Jiang, Changgeng Liu, Sean Caffey, Andrew Urazaki
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Patent number: 9489549Abstract: Systems and methods for maximizing the resonance frequency match between a reader and a controlled device interacting over a narrowband inductive link involve, in various embodiments, features of the controlled device, the reader, or both.Type: GrantFiled: August 5, 2015Date of Patent: November 8, 2016Assignee: MiniPumps, LLCInventors: Jacques Paris, Didier Sagan
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Patent number: 9386360Abstract: In various embodiments, a system for receiving wireless power includes a magnetic core and a plurality of layers of electrical conductors wrapped around the magnetic core. Each electrical conductor includes a first endpoint and a second endpoint; the first endpoint and the second endpoint are electrically connected to a circuit to provide power thereto, and two of the electrical conductors are electrically insulated from each other between the first endpoint and the second endpoint.Type: GrantFiled: January 9, 2015Date of Patent: July 5, 2016Assignee: MiniPumps, LLC.Inventors: Didier Sagan, Steven Arroyo
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Patent number: 9341275Abstract: Elastomeric check valves for use, e.g., in small pump devices, may include a molded elastomeric valve body forming a pocket that extends from an opening at the valve inlet to a terminus inside the valve body, and having a slit extending from the terminus to a valve outlet.Type: GrantFiled: September 15, 2011Date of Patent: May 17, 2016Assignee: MiniPumps, LLCInventors: Raymond Peck, Po-Ying Li, Changlin Pang, Jason Shih
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Patent number: 9333297Abstract: Embodiments of the present invention utilize a closed-loop feedback control system to ensure accurate drug delivery. This control system may, for example, utilize a flow sensor to measure the volume of delivery and an intelligent control algorithm to anticipate and compensate for overdoses and underdoses. Feedback control systems in accordance herewith can be applied to any piston- or plunger-driven pump system utilizing sensors that measure flow directly or indirectly. In some embodiments, adjustments are made based on the flow “tail” that occurs in a piston- or plunger-type pump as relaxation of the plunger material continues to push fluid out of the drug reservoir; this residual flow eventually ceases after the plunger returns to its natural state.Type: GrantFiled: September 24, 2013Date of Patent: May 10, 2016Assignee: MiniPumps, LLCInventors: Po-Ying Li, Shengtao Li, Jonathan K. Lee, Patrick Ryan, Alice Lai, Sean Caffey, Mark S. Humayun
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Patent number: 9283322Abstract: In various embodiments, actuation of a drug-delivery pump is controlled based on a change in a condition of the pump.Type: GrantFiled: July 11, 2013Date of Patent: March 15, 2016Assignee: MiniPumps, LLCInventors: Jason Shih, Jeffrey Brennan, Fukang Jiang, Sean Caffey
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Patent number: 9199035Abstract: In various embodiments, actuation of a drug-delivery pump is controlled based on a change in a condition of the pump.Type: GrantFiled: August 18, 2010Date of Patent: December 1, 2015Assignee: MiniPumps, LLC.Inventors: Jason Shih, Jeffrey Brennan, Fukang Jiang, Sean Caffey
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Patent number: 9162024Abstract: Embodiments of an implantable electrolytic pump include a drug reservoir, a cannula fluidly coupled to the reservoir, a pumping mechanism for forcing liquid from the reservoir through the cannula, control circuitry for operating the pumping mechanism, and a power source comprising primary and auxiliary batteries in a stacked configuration, only the main battery being operatively coupled to the control circuitry during normal operation, the control circuitry operatively coupling the back-up battery upon detection of an electrical fault. The pump may further include a hermetic enclosure containing the control circuitry and the power source.Type: GrantFiled: May 8, 2009Date of Patent: October 20, 2015Assignee: MiniPumps, LLCInventors: Changlin Pang, Fukang Jiang, Jason Shih, Sean Caffey, Mark Humayun, Yu-Chong Tai, Jeffrey Brennan, Raymond Peck
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Patent number: 9107995Abstract: Embodiments of method of manufacturing an implantable pump, including providing an upper layer comprising a dome structure for housing a drug chamber and a cannula in fluid communication with the drug chamber, providing a middle deflection layer adjacent the drug chamber, providing a bottom layer comprising electrolysis electrodes, and bonding the upper layer, middle deflection layer, and bottom layer to form the pump.Type: GrantFiled: June 7, 2013Date of Patent: August 18, 2015Assignee: MiniPumps, LLCInventors: Changlin Pang, Fukang Jiang, Jason Shih, Sean Caffey, Mark S. Humayun, Yu-Chong Tai
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Patent number: 9050407Abstract: In various embodiments, a tool is employed in filling a drug-delivery device. The tool may include, for example, a needle that is admitted through a fill port of the drug-delivery device.Type: GrantFiled: December 10, 2012Date of Patent: June 9, 2015Assignee: MINIPUMPS, LLCInventors: Jason Shih, Changlin Pang, Fukang Jiang, Sean Caffey, Mark Humayun, Yu-Chong Tai, Raymond Peck
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Patent number: 8939930Abstract: The accuracy of drug delivery with drug pump devices may be improved by a combination of pump operation at high flow resistances and pump pressures, pressure-relief mechanisms, and sensor-based feedback for pump control.Type: GrantFiled: November 19, 2012Date of Patent: January 27, 2015Assignee: MiniPumps, LLCInventors: Po-Ying Li, Jonathan Lee, Alice Lai, Yu-Chong Tai, Sean Caffey, Stuart Long
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Patent number: 8920376Abstract: The filling status of a drug reservoir in a drug pump devices may be determined with mechanical and/or magnetic position sensor associated with a reservoir boundary.Type: GrantFiled: April 20, 2011Date of Patent: December 30, 2014Assignee: MiniPumps, LLCInventors: Sean Caffey, Po-Ying Li, Yu-Chong Tai, Jeffrey Brennan
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Patent number: 8915904Abstract: A spiral-coil antenna conforming to a non-planar contour is deployed, in various embodiments, in an implantable device for controllably ejecting fluid into an anatomic region. The antenna facilitates wireless communications with the implantable device and external charging thereof. In one implementation, the device has a non-planar contour and the spiral coil defines a non-planar surface conforming to the non-planar contour.Type: GrantFiled: June 8, 2012Date of Patent: December 23, 2014Assignee: MiniPumps, LLCInventors: Jeffrey Brennan, Sean Caffey, Michelle Journey, Fukang Jiang
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Patent number: 8684997Abstract: Embodiments of an implantable electrolytic pump include an electrolysis chamber, a drug chamber and an osmosis chamber, the osmosis chamber having a first portion in contact with the drug chamber and a second portion exposed to facilitate contact with a surrounding fluid. The pump further includes a cannula for conducting liquid from the drug chamber and electrolysis electrodes within the electrolysis chamber for causing generation of a gas therein, the electrolysis and drug chambers being in contact such that gas electrolysis within electrolysis chamber forces fluid from the drug chamber into the cannula, contact between the drug chamber and the osmosis chamber permitting fluid admitted into the osmotic chamber from the surrounding fluid to offset volume loss from the drug chamber and prevent buildup of vacuum pressure thereon.Type: GrantFiled: July 3, 2012Date of Patent: April 1, 2014Assignee: MiniPumps, LLCInventors: Changlin Pang, Fukang Jiang, Jason Shih, Sean Caffey, Mark Humayun, Yu-Chong Tai
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Patent number: 8585648Abstract: A miniaturized drug pump can actively dispense fluid at a controlled (or controllable) flow rate emerging at or near the distal tip of a catheter.Type: GrantFiled: July 19, 2011Date of Patent: November 19, 2013Assignee: MiniPumps, LLCInventor: Sean Caffey
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Patent number: 8529538Abstract: Embodiments of an implantable electrolytic pump include a first expandable diaphragm and a second flexible diaphragm, and first and second chambers each for containing a fluid, wherein the first expandable diaphragm separates the first and second chambers and provides a fluid barrier therebetween, and the second chamber is formed between the first expandable diaphragm and the second flexible diaphragms. The pump may further include electrolysis electrodes within the first chamber for causing generation of a gas therein and to thereby expand the expandable diaphragm so that fluid is forced from the second chamber into a cannula.Type: GrantFiled: July 3, 2012Date of Patent: September 10, 2013Assignee: MiniPumps, LLCInventors: Changlin Pang, Fukang Jiang, Jason Shih, Sean Caffey, Mark Humayun, Yu-Chong Tai
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Publication number: 20130184641Abstract: The accuracy of drug delivery with drug pump devices may be improved by a combination of pump operation at high flow resistances and pump pressures, pressure-relief mechanisms, and sensor-based feedback for pump control.Type: ApplicationFiled: November 19, 2012Publication date: July 18, 2013Applicant: MiniPumps,LLC.Inventor: MiniPumps,LLC.
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Publication number: 20130184640Abstract: The accuracy of drug delivery with drug pump devices may be improved by a combination of pump operation at high flow resistances and pump pressures, pressure-relief mechanisms, and sensor-based feedback for pump control.Type: ApplicationFiled: November 19, 2012Publication date: July 18, 2013Applicant: MiniPumps, LLCInventor: MiniPumps, LLC
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Patent number: 8486278Abstract: Embodiments of method of manufacturing an implantable pump, including providing an upper layer comprising a dome structure for housing a drug chamber and a cannula in fluid communication with the drug chamber, providing a middle deflection layer adjacent the drug chamber, providing a bottom layer comprising electrolysis electrodes, and bonding the upper layer, middle deflection layer, and bottom layer to form the pump.Type: GrantFiled: May 8, 2009Date of Patent: July 16, 2013Assignee: MiniPumps, LLCInventors: Changlin Pang, Fukang Jiang, Jason Shih, Sean Caffey, Mark Humayun, Yu-Chong Tai
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Patent number: D770037Type: GrantFiled: May 2, 2014Date of Patent: October 25, 2016Assignee: MINIPUMPS, LLCInventors: Brett Daniel Schleicher, Nenad Jelisavcic, Fukang Jiang, Rick Purvis, Greg Harbers, Jason Shih, Sean Caffey, Mark Humayun, Octavio Cruz-Uribe, Evan Tsang