Patents by Inventor Dean Hu
Dean Hu 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: 10668193Abstract: Methods and devices for treatment of damaged tissue are disclosed, including treatment of wounds by employing non-electrically powered, reduced pressure therapy devices. Maintenance and control of the sub atmospheric pressure exerted may be provided by such devices while minimizing discomfort to the user. The devices may be configured to be worn inconspicuously underneath clothing.Type: GrantFiled: January 5, 2018Date of Patent: June 2, 2020Assignee: KCI Licensing, Inc.Inventors: Dean Hu, Moshe Pinto, Kenton Fong
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Patent number: 10660799Abstract: Disclosed herein are devices, systems and methods for delivering reduced pressure to a load-bearing wound site. The device can include a distal port configured to connect to a wound dressing positioned over the wound site; a proximal port located a distance from the distal port and configured to connect to a reduced pressure source, and a conduit body having an inner channel extending between the distal port and the proximal port. When the distal port is applied to the wound dressing positioned over the wound site the proximal port is positioned at a non-load bearing location remote from the wound dressing. The inner channel has a non-circular profile having a width larger than a height of the conduit body.Type: GrantFiled: May 17, 2017Date of Patent: May 26, 2020Assignee: KCI Licensing, Inc.Inventors: Kenneth Wu, Darren Ng, Jennifer Lee, Dean Hu
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Publication number: 20200138634Abstract: A treatment system including a tension relief layer having a central elastic region coupled between a pair of opposing wings; a porous region within the central elastic region that allows for the passage of material from an incision or wound to an upper surface of the tension relief layer; and a conformable sealing layer configured to be applied over the tension relief layer and adhered forming a sealed space around at least a portion of the wound. At least a portion of each of the opposing wings have adhesive lower surfaces. The opposing wings are configured to be stretched away from one another towards a first tensile configuration and while held in the first tensile configuration adhered to skin on opposing sides of the incision or wound. Related devices, systems and methods are also described.Type: ApplicationFiled: January 3, 2020Publication date: May 7, 2020Inventors: Kenneth WU, Dean HU
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Patent number: 10639206Abstract: Reduced pressure wound therapy is performed on a sacral region of a patient using an adhesive dressing comprising a flexible planar layer and a non-planar fold-sealing region configured to seal to the intergluteal cleft of a patient. The fold-sealing region is located on an outer edge of the adhesive dressing and comprises a tapered configuration.Type: GrantFiled: January 7, 2016Date of Patent: May 5, 2020Assignee: KCI Licensing, Inc.Inventors: Dean Hu, Kenton Fong, Moshe Pinto, Kenneth Wu, Evan Anderson, Tony Coxum, Brendan Donohoe, Philip Hui, Craig McGreevy
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Publication number: 20200061273Abstract: Dialysis systems and methods are described which can include a number of features. The dialysis systems described can be to provide dialysis therapy to a patient in the comfort of their own home. The dialysis system can be configured to prepare purified water from a tap water source in real-time that is used for creating a dialysate solution. The dialysis systems described also include features that make it easy for a patient to self-administer therapy. For example, the dialysis systems include disposable cartridge and patient tubing sets that are easily installed on the dialysis system and automatically align the tubing set, sensors, venous drip chamber, and other features with the corresponding components on the dialysis system. Methods of use are also provided, including automated priming sequences, blood return sequences, and dynamic balancing methods for controlling a rate of fluid transfer during different types of dialysis, including hemodialysis, ultrafiltration, and hemodiafiltration.Type: ApplicationFiled: August 23, 2019Publication date: February 27, 2020Inventors: Michael Edward HOGARD, Dean HU, Shih-Paul CHEN, James RITSON, Gopi K. LINGAM, Peter Velasco OBICO, James R. CURTIS, Steven M. MILLER
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Patent number: 10555838Abstract: A treatment system including a tension relief layer having a central elastic region coupled between a pair of opposing wings; a porous region within the central elastic region that allows for the passage of material from an incision or wound to an upper surface of the tension relief layer; and a conformable sealing layer configured to be applied over the tension relief layer and adhered forming a sealed space around at least a portion of the wound. At least a portion of each of the opposing wings have adhesive lower surfaces. The opposing wings are configured to be stretched away from one another towards a first tensile configuration and while held in the first tensile configuration adhered to skin on opposing sides of the incision or wound. Related devices, systems and methods are also described.Type: GrantFiled: February 11, 2015Date of Patent: February 11, 2020Assignee: KCI Licensing, Inc.Inventors: Kenneth Wu, Dean Hu
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Publication number: 20190298899Abstract: Methods and devices for treatment of damaged tissue are disclosed, including treatment of wounds by employing non-electrically powered, reduced pressure therapy devices. The devices are capable of generating a substantially constant reduced pressure with low tolerance for pressure fluctuations. Also disclosed herein are reduced pressure therapy systems that comprise an alarm system to detect the depleted state of the suction device and provide an alert to the patient and/or practitioner.Type: ApplicationFiled: April 30, 2019Publication date: October 3, 2019Inventors: Dean HU, Thomas YORKEY, Evan ANDERSON, Kenneth WU, Tony COXUM
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Publication number: 20190269835Abstract: Described generally herein are tissue therapy devices, which may comprise a sealant layer and a suction apparatus. The sealant layer functions so as to create a sealed enclosure between it and the surface of a patient by forming, preferably, an airtight seal around an area of tissue that requires negative pressure therapy. The tissue therapy device may comprise a suction apparatus. The suction apparatus is typically in fluid communication with the sealant layer and functions so as to reduce the amount of pressure present underneath the sealant layer. The reduced pressure is self-created by the suction apparatus. Together the sealant layer and the suction apparatus preferably create a closed reduced pressure therapy system. Preferably, the pressure under the sealant layer is reduced by expanding the volume of the enclosure space and thereby decreasing the density of the air molecules under the sealant layer.Type: ApplicationFiled: May 21, 2019Publication date: September 5, 2019Inventors: Moshe PINTO, Dean HU, Kenton FONG
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Publication number: 20190254879Abstract: A surgical tissue therapy device includes a sealant layer and a collection chamber. The sealant layer functions so as to create a sealed enclosure or space between it and the surface of a patient by forming, preferably, an airtight seal around a surgical area of skin trauma. The closed incision tissue therapy device also comprises a collection chamber, which may comprise an elongate tubular chamber with a plurality of longitudinally spaced openings. The collection chamber may be configured to be in fluid communication with the sealant layer and the area of skin trauma and functions as to distribute the negative pressure applied to a surgically closed area of skin trauma. Preferably, the pressure under the sealant layer is reduced by expanding the volume of the enclosure space and thereby decreasing the density of air molecules under the sealant layer.Type: ApplicationFiled: May 2, 2019Publication date: August 22, 2019Inventors: Dean HU, Moshe PINTO, Kenton FONG, Akshay MAVANI, Kenneth WU
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Publication number: 20190201604Abstract: Dialysis systems and methods are described which can include a number of features. The dialysis systems described can be to provide dialysis therapy to a patient in the comfort of their own home. The dialysis system can be configured to prepare purified water from a tap water source in real-time that is used for creating a dialysate solution. The dialysis systems described also include features that make it easy for a patient to self-administer therapy. For example, the dialysis systems include disposable cartridge and patient tubing sets that are easily installed on the dialysis system and automatically align the tubing set, sensors, venous drip chamber, and other features with the corresponding components on the dialysis system. Methods of use are also provided, including automated priming sequences, blood return sequences, and dynamic balancing methods for controlling a rate of fluid transfer during different types of dialysis, including hemodialysis, ultrafiltration, and hemodiafiltration.Type: ApplicationFiled: March 7, 2019Publication date: July 4, 2019Applicant: OUTSET MEDICAL, INC.Inventors: Michael Edward Hogard, Gopi Lingam, Dean Hu, Balaji M. Maniam, James Ritson, Andy H. Uchida, John David Stienmier, Paul David Mcgregor
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Patent number: 10335521Abstract: Described generally herein are tissue therapy devices, which may comprise a sealant layer and a suction apparatus. The sealant layer functions so as to create a sealed enclosure between it and the surface of a patient by forming, preferably, an airtight seal around an area of tissue that requires negative pressure therapy. The tissue therapy device may comprise a suction apparatus. The suction apparatus is typically in fluid communication with the sealant layer and functions so as to reduce the amount of pressure present underneath the sealant layer. The reduced pressure is self-created by the suction apparatus. Together the sealant layer and the suction apparatus preferably create a closed reduced pressure therapy system. Preferably, the pressure under the sealant layer is reduced by expanding the volume of the enclosure space and thereby decreasing the density of the air molecules under the sealant layer.Type: GrantFiled: August 30, 2011Date of Patent: July 2, 2019Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Moshe Pinto, Dean Hu, Kenton Fong
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Publication number: 20190192758Abstract: Described herein are systems and methods for performing peritoneal dialysis. According to one aspect, the disclosure in provides a sterile interface connection for connecting a water purification system to a disposable source of dialysate concentrates. The sterile interface connection can include a chamber comprising an inlet adapted to be connected to the water purification system on a proximal end and a valve on a distal end. The sterile interface connection can also include spring-loaded needle disposed in the chamber. The spring-loaded needle can move between a retracted configuration in which the spring-loaded needle is fully retracted into the chamber and the valve is closed and sealed, and an extended configuration in which the spring-loaded needle extends through the valve into the disposable source of dialysate concentrates.Type: ApplicationFiled: August 21, 2017Publication date: June 27, 2019Inventors: James RITSON, Michael Edward HOGARD, Gopi K. LINGAM, Shih-Paul CHEN, Dean HU
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Patent number: 10322033Abstract: A surgical tissue therapy device includes a sealant layer and a collection chamber. The sealant layer functions so as to create a sealed enclosure or space between it and the surface of a patient by forming, preferably, an airtight seal around a surgical area of skin trauma. The closed incision tissue therapy device also comprises a collection chamber, which may comprise an elongate tubular chamber with a plurality of longitudinally spaced openings. The collection chamber may be configured to be in fluid communication with the sealant layer and the area of skin trauma and functions as to distribute the negative pressure applied to a surgically closed area of skin trauma. Preferably, the pressure under the sealant layer is reduced by expanding the volume of the enclosure space and thereby decreasing the density of air molecules under the sealant layer.Type: GrantFiled: July 21, 2016Date of Patent: June 18, 2019Assignee: KCI Licensing, Inc.Inventors: Dean Hu, Moshe Pinto, Kenton Fong, Akshay Mavani, Kenneth Wu
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Patent number: 10314954Abstract: Methods and devices for treatment of damaged tissue are disclosed, including treatment of wounds by employing non-electrically powered, reduced pressure therapy devices. The devices are capable of generating a substantially constant reduced pressure with low tolerance for pressure fluctuations. Also disclosed herein are reduced pressure therapy systems that comprise an alarm system to detect the depleted state of the suction device and provide an alert to the patient and/or practitioner.Type: GrantFiled: January 19, 2017Date of Patent: June 11, 2019Assignee: KCI Licensing, Inc.Inventors: Dean Hu, Thomas Yorkey, Evan Anderson, Kenneth Wu, Tony Coxum
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Publication number: 20190167866Abstract: A surgical tissue therapy device includes a sealant layer and a collection chamber. The sealant layer functions so as to create a sealed enclosure, or space between it and the surface of a patient, by forming an airtight seal around a surgical area of skin trauma. The closed incision tissue therapy device also comprises a collection chamber, which may comprise an elongate tubular chamber with a plurality of longitudinally spaced openings. The collection chamber may be configured to be in fluid communication with the sealant layer and the area of skin trauma and functions as to distribute the negative pressure applied to a surgically closed area of skin trauma. Preferably, the pressure under the sealant layer is reduced by expanding the volume of the enclosure space and thereby decreasing the density of air molecules under the sealant layer. The collection material may comprise a material and/or a configuration that permits length changes based upon the length of the corresponding surgical wound or incision.Type: ApplicationFiled: April 20, 2016Publication date: June 6, 2019Inventors: Dean HU, Kenton FONG, Moshe PINTO, Kenneth WU, Craig MC GREEVY, Brendan DONOHOE
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Publication number: 20190091072Abstract: Disclosed herein is a device which is intended to deliver and maintain reduced pressure to body surfaces for application of reduced pressure wound therapy (RPWT) also known as negative pressure wound therapy (NPWT). During application of this type of therapy, a substantially airtight seal is formed around a section of tissue to be treated. This seal is formed by a dressing which provides fluid communication from a section of tissue to a reduced pressure source. Disclosed herein is a dressing system which is configured to enhance usability and functionality of this dressing. First, the system may be configured to allow full rotation of the fluid communication conduit to the reduced pressure source along the axis substantially normal to the dressing. Second, the system may be configured to include a one-way valve to prevent backflow of any drainage fluids. Third, the system may be configured with transparent windows covered by opaque flaps to allow inspection through the dressing.Type: ApplicationFiled: November 30, 2018Publication date: March 28, 2019Inventors: Dean HU, Kenton FONG, Moshe PINTO, Philip HUI, Kenneth WU, Craig MCGREEVY, Evan ANDERSON
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Patent number: 10182947Abstract: Disclosed herein is a device which is intended to deliver and maintain reduced pressure to body surfaces for application of reduced pressure wound therapy (RPWT) also known as negative pressure wound therapy (NPWT). During application of this type of therapy, a substantially airtight seal is formed around a section of tissue to be treated. This seal is formed by a dressing which provides fluid communication from a section of tissue to a reduced pressure source. Disclosed herein is a dressing system which is configured to enhance usability and functionality of this dressing. First, the system may be configured to allow full rotation of the fluid communication conduit to the reduced pressure source along the axis substantially normal to the dressing. Second, the system may be configured to include a one-way valve to prevent backflow of any drainage fluids. Third, the system may be configured with transparent windows covered by opaque flaps to allow inspection through the dressing.Type: GrantFiled: February 17, 2011Date of Patent: January 22, 2019Assignee: KCI Licensing, Inc.Inventors: Dean Hu, Kenton Fong, Moshe Pinto, Philip Hui, Kenneth Wu, Craig McGreevy, Evan Anderson
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Patent number: 10117977Abstract: The tissue therapy device includes a sealant layer and a suction apparatus. The sealant layer creates a sealed enclosure between it and the surface of a patient by forming an airtight seal around an area of tissue. The suction apparatus is in fluid communication with the sealant layer and together, create a closed, reduced pressure therapy system. The suction apparatus self-creates reduced pressure by decreasing the density of air molecules underneath the sealant layer by expanding the volume of the air molecules.Type: GrantFiled: March 13, 2008Date of Patent: November 6, 2018Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Moshe Pinto, Dean Hu, Kenton Fong
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Publication number: 20180250453Abstract: Described herein are alarm systems for suction devices for reduced pressure therapy. Alarms systems provide alerts to the patient and/or practitioner regarding the ability of the suction device to continue to provide negative pressure to a tissue region. Alarm systems comprise a sensor mechanism, which is capable of detecting the position of a slidable seal within the suction device, and generating an alert. Certain variations of alarms systems comprise magnetic field sensitive switches and/or electric switches. Other variations of alarm systems comprise rotary encoders to detect the motion and location of constant force springs, which signal the notification mechanism to issue alerts accordingly. Described herein are alarm devices configured to retain a suction device therein and to attach the suction device to a patient. The alarm devices disclosed herein detect the depleted state of the suction device and are capable of retaining the suction device in a plurality of orientations.Type: ApplicationFiled: March 2, 2018Publication date: September 6, 2018Inventors: Dean HU, Thomas YORKEY, Evan ANDERSON, Kenneth WU
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Publication number: 20180177925Abstract: Methods and devices for treatment of damaged tissue are disclosed, including treatment of wounds by employing non-electrically powered, reduced pressure therapy devices. Maintenance and control of the sub atmospheric pressure exerted may be provided by such devices while minimizing discomfort to the user. The devices may be configured to be worn inconspicuously underneath clothing.Type: ApplicationFiled: January 5, 2018Publication date: June 28, 2018Inventors: Dean HU, Moshe PINTO, Kenton FONG