Patents by Inventor Yixin Hu

Yixin 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).

  • Publication number: 20220281902
    Abstract: Compounds, compositions and methods are provided for mitochondrial modulation. The subject mitochondrial modulator compounds generally include a head group linked to a charged moiety. In certain cases, the head group is a heterocyclic or a heteroaryl group. Aspects of the subject methods include a method of modulating mitochondria. Aspects of the subject methods include treating a subject having a metabolic syndrome-related disease or a symptom thereof by administering to the subject a therapeutically effective amount of a subject compound. In certain cases, the disease is selected from hyperlipidemia, type 2 diabetes, fatty liver disease, obesity, cardiovascular disease and stroke. In certain cases, the symptom is selected from abdominal obesity, insulin resistance, hyperinsulinemia, high levels of blood fats, increased blood pressure, and elevated serum lipids.
    Type: Application
    Filed: August 11, 2020
    Publication date: September 8, 2022
    Inventors: Lei Fu, Mojdeh Tavallaie, James P. Collman, Christopher J. Barile, Yixin Hu
  • Publication number: 20210169546
    Abstract: An embodiment in accordance with the present invention provides a handheld cryoprobe for use in percutaneous cryotherapy of tumorous masses. It includes a probe attached to a CO2 gas dispensing backend. The probe has specifically optimized parameters designed for use with CO2 gas and is made out of a partially hollowed and threaded aluminum rod providing maximum heat exchange. The system backend regulates flow of compressed CO2 gas while throttling and cooling the gas coolant to the cytotoxically low temperatures necessary for targeted tumor cell death. Additionally, the incoming initial stream of CO2 gas is throttled by the Joule-Thomson nozzle on the backend. The low temperature exhaust gas is then used to pre-cool all subsequent incoming gas, resulting in an even lower temperature at the probe tip, which provides a positive feedback loop, continually decreasing the gas's temperature. The temperature drop is caused by the Joule-Thomson effect.
    Type: Application
    Filed: May 1, 2019
    Publication date: June 10, 2021
    Inventors: Bailey Surtees, Evelyn McChesney, Sean Young, Yixin Hu, Nicholas James Durr, Tara Blair, Pascal Acree, Grace Kuroki, Susan C. Harvey, Serena M. Thomas
  • Patent number: 10022181
    Abstract: The present invention includes a medical device providing for the measurement and/or monitoring of the thermal conditions and/or environment existing across a substantial portion of a thermal element disposed on the medical device and the corresponding tissue region being treated by the device. The medical device of the present invention may generally include an elongate body having a thermal element coupled thereto for providing thermal energy to a desired tissue region, as well as a thermocouple array providing a plurality of temperature measurement positions about the thermal element. The thermocouple array may include one or more thermocouple elements arranged as a mesh or wire structure disposed about a substantial portion of the surface area of the thermal element.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: July 17, 2018
    Assignee: Medtronic CryoCath LP
    Inventors: Yixin Hu, Wlodzimierz Sadzynski, Melita A. Tabao, Teresa Mihalik
  • Patent number: 9636172
    Abstract: A system and method for occluding a pulmonary vein. The device includes a treatment device comprising an inner balloon, an outer balloon, and a space therebetween. Delivery of fluid to the inner balloon inflates the treatment element to a first diameter. If a greater treatment element diameter is required to completely occlude a pulmonary vein, fluid is delivered to the space between the first and second balloons, which expands the second balloon and causes the treatment element to have a second diameter that is greater than the first diameter. The fluid delivered to the inner balloon and fluid delivered to the space between the balloons may be from different sources and may be delivered and exhausted independently. Once the treatment element is caused to have a diameter sufficient to completely occlude the pulmonary vein, the treatment element is activated to cool or heat ostial tissue.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: May 2, 2017
    Assignee: Medtronic CryoCath LP
    Inventor: Yixin Hu
  • Patent number: 9211393
    Abstract: The present invention may include a medical device having a handle, a catheter coupled to the handle, and an expandable element coupled to the catheter. The medical device may also include first and second elongate bodies that traverse a length of the handle and the catheter. A housing may be disposed within the handle, with the housing defining a first opening able to receive a portion of the first elongate body, a second opening able to receive a portion of the second elongate body, and a third opening opposite the first and second openings able to receive a portion of both the first and second elongate bodies. A separation element may be disposed within the housing, with the separation element defining a path able to receive a portion of the second elongate body, and whereby a portion of the first elongate body forms a loop around the separation element.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: December 15, 2015
    Assignee: Medtronic CryoCath LP
    Inventors: Yixin Hu, Vladimir Tzonev, Teresa Ann Mihalik, Benoit Thibault, Dan Wittenberger, Miriam Lane, Cristian Petre
  • Publication number: 20140358137
    Abstract: A system and method for occluding a pulmonary vein. The device includes a treatment device comprising an inner balloon, an outer balloon, and a space therebetween. Delivery of fluid to the inner balloon inflates the treatment element to a first diameter. If a greater treatment element diameter is required to completely occlude a pulmonary vein, fluid is delivered to the space between the first and second balloons, which expands the second balloon and causes the treatment element to have a second diameter that is greater than the first diameter. The fluid delivered to the inner balloon and fluid delivered to the space between the balloons may be from different sources and may be delivered and exhausted independently. Once the treatment element is caused to have a diameter sufficient to completely occlude the pulmonary vein, the treatment element is activated to cool or heat ostial tissue.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 4, 2014
    Inventor: Yixin HU
  • Patent number: 7871395
    Abstract: The present invention may include a medical device having a handle, a catheter coupled to the handle, and an expandable element coupled to the catheter. The medical device may also include first and second elongate bodies that traverse a length of the handle and catheter. A housing may be disposed within the handle, wherein the housing defines a first opening able to receive a portion of the first elongate body, a second opening able to receive a portion of the second elongate body, and a third opening opposite the first and second openings able to receive a portion of both the first and second elongate bodies. A separation element may be disposed within the housing, with the separation element defining a path able to receive a portion of the second elongate body, and whereby a portion of the first elongate body forms a loop around the separation element.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: January 18, 2011
    Assignee: Medtronic Cryocath LP
    Inventors: Yixin Hu, Teresa Mihalik, Cristian Petre, Dan Wittenberger
  • Publication number: 20080097373
    Abstract: The present invention may include a medical device having a handle, a catheter coupled to the handle, and an expandable element coupled to the catheter. The medical device may also include first and second elongate bodies that traverse a length of the handle and catheter. A housing may be disposed within the handle, with the housing defines a first opening able to receive a portion of the first elongate body, a second opening able to receive a portion of the second elongate body, and a third opening opposite the first and second openings able to receive a portion of both the and second elongate bodies. A separation element may be disposed within the housing, with the separation element defining a path able to receive a portion of the second elongate body, and whereby a portion of the first elongate body forms a loop around the separation element.
    Type: Application
    Filed: June 28, 2006
    Publication date: April 24, 2008
    Inventors: Yixin Hu, Vladimir Tzonev, Teresa Ann Mihalik, Benoit Thibault, Dan Wittenberger, Miriam Lane, Cristian Petre
  • Publication number: 20080097421
    Abstract: The present invention includes a medical device providing for the measurement and/or monitoring of the thermal conditions and/or environment existing across a substantial portion of a thermal element disposed on the medical device and the corresponding tissue region being treated by the device. The medical device of the present invention may generally include an elongate body having a thermal element coupled thereto for providing thermal energy to a desired tissue region, as well as a thermocouple array providing a plurality of temperature measurement positions about the thermal element. The thermocouple array may include one or more thermocouple elements arranged as a mesh or wire structure disposed about a substantial portion of the surface area of the thermal element.
    Type: Application
    Filed: September 27, 2006
    Publication date: April 24, 2008
    Inventors: Yixin Hu, Wlodzimierz Sadzynski, Melita A. Tabao, Teresa Mihalik
  • Publication number: 20070282256
    Abstract: The present invention may include a medical device having a handle, a catheter coupled to the handle, and an expandable element coupled to the catheter. The medical device may also include first and second elongate bodies that traverse a length of the handle and catheter. A housing may be disposed within the handle, with the housing defines a first opening able to receive a portion of the first elongate body, a second opening able to receive a portion of the second elongate body, and a third opening opposite the first and second openings able to receive a portion of both the and second elongate bodies. A separation element may be disposed within the housing, with the separation element defining a path able to receive a portion of the second elongate body, and whereby a portion of the first elongate body forms a loop around the separation element.
    Type: Application
    Filed: June 5, 2006
    Publication date: December 6, 2007
    Inventors: Yixin Hu, Teresa Mihalik, Cristian Petre, Dan Wittenberger
  • Patent number: D564093
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: March 11, 2008
    Assignee: CryoCath Technologies Inc.
    Inventors: Philippe Marchand, Yixin Hu, Ramin Sabbaghe-Kermani, Michael Bailey, Michel Morelli, André Tremblay, Teresa Mihalik, Daniel Patrick O'Sullivan, Jr., Stanley O. Thompson, Domenic Santoianni, Vincent Nicolas Gladu