Patents by Inventor Richard Childs
Richard Childs 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: 20240079853Abstract: An electrical contact for a semiconductor device, and a method of forming an electrical contact is disclosed. The electrical contact comprises a perimeter area, an aperture located within the perimeter area and one or more electrical tracks extending from the perimeter area into the aperture. The one or more electrical tracks comprise a non-linear shape. The presence of the one or more electrical tracks within the aperture provides a means to remove, or significantly reduce, the problematic effects of current crowding within a semiconductor device in which it is employed. The electrical contacts provide particular application for semiconductor laser devices. When the electrical contact is located on an output surface of the semiconductor laser device, the condition for a diffraction pattern to be imparted onto the emission profile of the output light of the semiconductor laser device is removed, thus improving the overall beam quality of the output light.Type: ApplicationFiled: February 20, 2023Publication date: March 7, 2024Inventors: Jonathan Robert ORCHARD, David CHILDS, Richard TAYLOR
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Publication number: 20240074854Abstract: Fixation system for engaging tissue of a patient including an implantable fixation device having a first arm and a second arm, a first proximal element, a second proximal element, and a coupling member. The system includes a delivery device having a catheter, a shaft extending through the at least one lumen of the catheter, a first proximal element actuator and a second proximal element actuator. The second end portions of the first proximal element actuator and second proximal element actuator can be coupled to at least one of the shaft and the coupling member.Type: ApplicationFiled: November 13, 2023Publication date: March 7, 2024Applicant: Evalve, Inc.Inventors: Richard Childs, Koji Kizuka, Gabriel Gonzales, Dylan Van Hoven, Tamer Mahmoud, Chad Abunassar, Santosh Prabhu
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Publication number: 20240000570Abstract: An exemplary system for delivering annuloplasty implants includes an elongated inner catheter assembly, a manifold attached to the proximal portion of the inner catheter, a steering knob assembly coupled to the manifold, a torquer control knob assembly coupled to the manifold, and a central lead extending from a proximal portion of the torquer control knob assembly to the distal portion of the inner catheter assembly. The manifold is configured to present a medial driver tube, a lateral driver tube, a medial lead, a lateral lead, a medial tether puller and a lateral tether puller to a surgeon. Additional annuloplasty implant instrumentation and methods of use are also disclosed.Type: ApplicationFiled: May 5, 2023Publication date: January 4, 2024Inventors: Trevor M. GREENAN, Travis ROWE, Megan LO, Mathew A. HAGGARD, Do D. UONG, Zhicheng FANG, Daniel GREENAN, Richard CHILDS, Chase WOOLEY, Ben MORRIS
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Patent number: 11850151Abstract: Fixation system for engaging tissue of a patient including an implantable fixation device having a first arm and a second arm, a first proximal element, a second proximal element, and a coupling member. The system includes a delivery device having a catheter, a shaft extending through the at least one lumen of the catheter, a first proximal element actuator and a second proximal element actuator. The second end portions of the first proximal element actuator and second proximal element actuator can be coupled to at least one of the shaft and the coupling member.Type: GrantFiled: July 15, 2020Date of Patent: December 26, 2023Assignee: EVALVE, INC.Inventors: Richard Childs, Koji Kizuka, Gabriel Gonzales, Dylan Van Hoven, Tamer Mahmoud, Chad Abunassar, Santosh Prabhu
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Patent number: 11781226Abstract: In a method for cathodically protecting and/or passivating a metal section in an ionically conductive material such as steel reinforcement in concrete or mortar, an impressed current or sacrificial anode communicates ionic current to the metal section and a storage component of electrical energy which can be a cell, battery or capacitor is provided as a component of the anode. A current limiter is provided which prevents excess current draining the supply. This can be a semi-conductive device such as a transistor or diode is connected in the path from the anode to the metal section to limit the cathodic protection current to a value of the order of 1 milliamp. When a diode or similar device is used the current can be limited to the reverse leakage current of the diode.Type: GrantFiled: April 27, 2020Date of Patent: October 10, 2023Assignee: Vector Remediation Ltd.Inventors: David William Whitmore, Geoffrey Richard Child
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Publication number: 20220361907Abstract: Systems and methods for separating native heart valve leaflets attached together by a fixation device. The system has elongate shaft including a proximal end portion, a distal end portion and a longitudinal axis extending therebetween. The elongate shaft is configured for transvascular delivery of the distal end portion to a native heart valve. A balloon is disposed at the distal end portion of the elongate shaft, and the balloon is inflatable from a collapsed condition to an inflated condition. At least one snare lumen extends along at least a portion of the balloon, the at least one snare lumen having an exit port defined therein. A snare is deployable through the exit port from a delivery position within the at least one snare lumen to an extended position extending beyond the exit port. The snare in the extended position is configured to capture the fixation device.Type: ApplicationFiled: May 13, 2022Publication date: November 17, 2022Applicant: EVALVE, INC.Inventors: Philip Osterbauer, Tracee Eidenschink, Ted Dale, Richard Childs, Michael F. Wei
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Publication number: 20210292916Abstract: In a method for cathodically protecting and/or passivating a metal section in an ionically conductive material such as steel reinforcement in concrete or mortar, an impressed current or sacrificial anode communicates ionic current to the metal section and a storage component of electrical energy which can be a cell, battery or capacitor is provided as a component of the anode. A current limiter is provided which prevents excess current draining the supply. This can be a semi-conductive device such as a transistor or diode is connected in the path from the anode to the metal section to limit the cathodic protection current to a value of the order of 1 milliamp. When a diode or similar device is used the current can be limited to the reverse leakage current of the diode.Type: ApplicationFiled: April 7, 2021Publication date: September 23, 2021Inventors: David William Whitmore, Geoffrey Richard Child
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Publication number: 20210145574Abstract: Fixation system for engaging tissue of a patient including an implantable fixation device having a first arm and a second arm, a first proximal element, a second proximal element, and a coupling member. The system includes a delivery device having a catheter, a shaft extending through the at least one lumen of the catheter, a first proximal element actuator and a second proximal element actuator. The second end portions of the first proximal element actuator and second proximal element actuator can be coupled to at least one of the shaft and the coupling member.Type: ApplicationFiled: July 15, 2020Publication date: May 20, 2021Applicant: EVALVE, INC.Inventors: Richard Childs, Koji Kizuka, Gabriel Gonzales, Dylan Van Hoven, Tamer Mahmoud, Chad Abunassar, Santosh Prabhu
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Publication number: 20210128305Abstract: Stabilizer for a medical delivery system is provided, wherein the medical delivery system has at least two portions translatable relative each other. The stabilizer includes a base and a sled coupled to the base. The sled includes a distal arm including a distal attachment for receiving a first portion of the medical delivery system, and a proximal arm including a proximal attachment for receiving a second portion of the medical delivery system. The sled is translatable relative to the base and the proximal attachment is translatable relative to the proximal arm.Type: ApplicationFiled: November 5, 2020Publication date: May 6, 2021Applicant: EVALVE, INC.Inventors: Koji J. Kizuka, Alexander C. Chu, Richard Childs, Dylan Van Hoven, Gabriel Gonzales
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Publication number: 20210015614Abstract: Fixation system for fixation of leaflets of a heart valve including an implantable fixation device having a first arm and a second arm, a first proximal element moveable relative to the first arm between a first position and a second position, and a second proximal element moveable relative to the second arm between a first position and a second position. The fixation system includes a delivery device having a catheter, a first proximal element line and a second proximal element line, and a handle having a first and second proximal element line handles coupled to the first proximal element line and the second proximal element line, respectively. The handle can include an interlock moveable between an unlocked position and a locked position.Type: ApplicationFiled: July 15, 2020Publication date: January 21, 2021Applicant: EVALVE, INC.Inventors: Koji Kizuka, Richard Childs, Gabriel Gonzales, Dylan Van Hoven, Chad Abunassar, Travis Marsot, Rob Mosley, Nisu Patel, Francisco Valencia
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Publication number: 20200308712Abstract: In a method for cathodically protecting and/or passivating a metal section in an ionically conductive material such as steel reinforcement in concrete or mortar, an impressed current or sacrificial anode communicates ionic current to the metal section and a storage component of electrical energy which can be a cell, battery or capacitor is provided as a component of the anode. A current limiter is provided which prevents excess current draining the supply. This can be a semi-conductive device such as a transistor or diode is connected in the path from the anode to the metal section to limit the cathodic protection current to a value of the order of 1 milliamp. When a diode or similar device is used the current can be limited to the reverse leakage current of the diode.Type: ApplicationFiled: April 27, 2020Publication date: October 1, 2020Inventors: David William Whitmore, Geoffrey Richard Child
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Patent number: 10633746Abstract: In a method for cathodically protecting and/or passivating a metal section in an ionically conductive material such as steel reinforcement in concrete or mortar, an impressed current or sacrificial anode communicates ionic current to the metal section and a storage component of electrical energy which can be a cell, battery or capacitor is provided as a component of the anode. The storage component can have replacement energy introduced by re-charging or replacing the component from an outside supply. Typically the cell or storage capacitor has an outer case which carries an anode material as an integral outer component. A mechanical clamp is provided to attach the assembly to a rebar. A current limiter is provided which prevents excess current draining the supply.Type: GrantFiled: July 7, 2017Date of Patent: April 28, 2020Assignee: Vector Remediation Ltd.Inventors: David William Whitmore, Geoffrey Richard Child
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Publication number: 20190010614Abstract: In a method for cathodically protecting and/or passivating a metal section in an ionically conductive material such as steel reinforcement in concrete or mortar, an impressed current or sacrificial anode communicates ionic current to the metal section and a storage component of electrical energy which can be a cell, battery or capacitor is provided as a component of the anode. The storage component can have replacement energy introduced by re-charging or replacing the component from an outside supply. Typically the cell or storage capacitor has an outer case which carries an anode material as an integral outer component. A mechanical clamp is provided to attach the assembly to a rebar. A current limiter is provided which prevents excess current draining the supply.Type: ApplicationFiled: July 7, 2017Publication date: January 10, 2019Inventors: David William Whitmore, Geoffrey Richard Child
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Patent number: 6842641Abstract: An apparatus for performing in-vivo sonoporation of a skin area and transdermal and/or intradermal delivery of a drug solution includes a container having an end adjacent the skin area and containing the drug solution. The container further includes an ultrasound horn having a tip submerged in the drug solution for applying ultrasound radiation to the drug solution. The ultrasound radiation has a frequency in the range of 15 KHz and 1 MHz and is applied at an intensity, for a period of time and at a distance from said skin area effective to generate cavitation bubbles. The cavitation bubbles collapse and transfer their energy into the skin area, thus causing the formation of pores in the skin area. The ultrasound radiation intensity and distance from the skin area are also effective in generating ultrasonic jets, which ultrasonic jets then drive the drug solution through the end adjacent the skin area and the formed pores into the skin.Type: GrantFiled: November 25, 2002Date of Patent: January 11, 2005Assignee: Ultra-Sonic Technologies, L.L.C.Inventors: Ludwig Weimann, Richard Childs
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Publication number: 20030078533Abstract: An apparatus for performing in-vivo sonoporation of a skin area and transdermal and/or intradermal delivery of a drug solution includes a container having an end adjacent the skin area and containing the drug solution. The container further includes an ultrasound horn having a tip submerged in the drug solution for applying ultrasound radiation to the drug solution. The ultrasound radiation has a frequency in the range of 15 KHz and 1 MHz and is applied at an intensity, for a period of time and at a distance from said skin area effective to generate cavitation bubbles. The cavitation bubbles collapse and transfer their energy into the skin area, thus causing the formation of pores in the skin area. The ultrasound radiation intensity and distance from the skin area are also effective in generating ultrasonic jets, which ultrasonic jets then drive the drug solution through the end adjacent the skin area and the formed pores into the skin.Type: ApplicationFiled: November 25, 2002Publication date: April 24, 2003Inventors: Ludwig Weimann, Richard Childs
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Patent number: 6487447Abstract: An apparatus for performing in-vivo sonoporation of a skin area and transdermal and/or intradermal delivery of a drug solution includes a container having an end covered with a porous membrane and containing the drug solution and an ultrasound horn having a tip submerged in the drug solution. The ultrasound horn applies ultrasound radiation to the drug solution. The ultrasound radiation has a frequency in the range of 15 KHz and 1 MHz and is applied at an intensity, for a period of time and at a distance from said skin area effective to generate cavitation bubbles. The cavitation bubbles collapse and transfer their energy into the skin area thus causing the formation of pores in the skin area. The ultrasound radiation intensity and distance from the skin area are also effective in generating ultrasonic jets, which ultrasonic jets then drive the drug solution through the porous membrane and the formed pores into the skin.Type: GrantFiled: October 17, 2000Date of Patent: November 26, 2002Assignee: Ultra-Sonic Technologies, L.L.C.Inventors: Ludwig Weimann, Richard Childs