Patents by Inventor Ping Cheng Benjamin Liu

Ping Cheng Benjamin Liu 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).

  • Patent number: 9433360
    Abstract: Finger cuff adjustability is provided in a measurement cylinder assembly in a unique manner which accommodates the size and space limitations inherent in a mouse-based blood pressure measurement device. The exterior radial surface of the inflatable cuff is adhered to a pull-tab which is longer than the cuff length and has a tab end channeled through a pair of rings, one of which is fixed or stationary and the other of which is an adjustment ring. Rotation of the adjustment ring either pulls or pushes the tab end through a slit in the fixed or stationary ring depending upon the direction of ring rotation. Pulling the tab end causes the adhered finger cuff to forcefully collapse around the user's finger in firmer engagement therewith and to compensate for a finger of smaller diameter. Pushing the tab end causes the adhered finger cuff to forcefully open to a larger profile to loosen the engagement with a finger and to compensate for a finger of larger diameter.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: September 6, 2016
    Assignee: CalHealth, Inc.
    Inventors: Phillip L. Lam, Ping Cheng Benjamin Liu
  • Patent number: 7335163
    Abstract: A sphygmomanometer cuff assembly, air pump, pressure sensor and release valve are contained in an otherwise conventional computer mouse controller. Various alternative embodiments are illustrated and discussed herein. In one such embodiment the sphygmomanometer cuff is nominally positioned within the mouse structure and is extended outside the mouse housing during the measurement. In another embodiment, the cuff is always external of the mouse structure and is easily connected to the mouse at special ports during the measurement. In yet another embodiment, the cuff is always internal of the mouse structure and is readily accessible through an aperture in the housing surface of the mouse to permit the measurement to take place. Preferably, in each of these alternative embodiments a hinged or slidable door or panel protects the cuff or cuff ports between measurements.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: February 26, 2008
    Assignee: CalHealth, Inc.
    Inventors: Phillip L. Lam, Ping Cheng Benjamin Liu
  • Publication number: 20080015423
    Abstract: A home health care kit in the form of a modularized computer docking station for allowing a user to provide self-monitoring test results that are transferred to a standard desktop or laptop computer for eventual automatic communication over the Internet to the user's physician. In a preferred embodiment, the invention comprises a plurality of interconnected test modules, each configured to provide everything needed to permit a user to conduct a health-related measurement. One such measurement may be that of blood pressure and pulse rate. Another may be actual blood sugar. Still another may be hemoglobin A1C or hemoglobin and another may be cholesterol and triglyceride levels. Each module has an electronics portion and a storage portion. Each such module also has a male connector on one side and a female connector on an opposing side so that the various modules may be interconnected, one to the next in sequence.
    Type: Application
    Filed: June 27, 2007
    Publication date: January 17, 2008
    Inventors: Phillip Lam, Ping Cheng Benjamin Liu
  • Publication number: 20070232937
    Abstract: A sphygmomanometer cuff assembly, air pump, pressure sensor and release valve are contained in an otherwise conventional computer mouse controller. Various alternative embodiments are illustrated and discussed herein. In one such embodiment the sphygmomanometer cuff is nominally positioned within the mouse structure and is extended outside the mouse housing during the measurement. In another embodiment, the cuff is always external of the mouse structure and is easily connected to the mouse at special ports during the measurement. In yet another embodiment, the cuff is always internal of the mouse structure and is readily accessible through an aperture in the housing surface of the mouse to permit the measurement to take place. Preferably, in each of these alternative embodiments a hinged or slidable door or panel protects the cuff or cuff ports between measurements.
    Type: Application
    Filed: April 30, 2007
    Publication date: October 4, 2007
    Inventors: Phillip Lam, Ping Cheng Benjamin Liu
  • Publication number: 20070060824
    Abstract: A sphygmomanometer cuff assembly, air pump, pressure sensor and release valve are contained in an otherwise conventional computer mouse controller. Three alternative embodiments are illustrated and discussed herein. In one such embodiment the sphygmomanometer cuff is nominally positioned within the mouse structure and is extended outside the mouse housing during the measurement. In another embodiment, the cuff is always external of the mouse structure and is easily connected to the mouse at special ports during the measurement. In yet another embodiment, the cuff is always internal of the mouse structure and is readily accessible through an aperture in the housing surface of the mouse to permit the measurement to take place. Preferably, in each of these alternative embodiments a hinged or slidable door or panel protects the cuff or cuff ports between measurements.
    Type: Application
    Filed: May 5, 2006
    Publication date: March 15, 2007
    Inventors: Phillip Lam, Ping Cheng Benjamin Liu
  • Patent number: 7066890
    Abstract: A sphygmomanometer cuff assembly, air pump, pressure sensor and release valve are contained in an otherwise conventional computer mouse controller. Three alternative embodiments are illustrated and discussed herein. In one such embodiment the sphygmomanometer cuff is nominally positioned within the mouse structure and is extended outside the mouse housing during the measurement. In another embodiment, the cuff is always external of the mouse structure and is easily connected to the mouse at special ports during the measurement. In yet another embodiment, the cuff is always internal of the mouse structure and is readily accessible through an aperture in the housing surface of the mouse to permit the measurement to take place. Preferably, in each of these alternative embodiments a hinged or slidable door or panel protects the cuff or cuff ports between measurements.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: June 27, 2006
    Inventors: Phillip L. Lam, Ping Cheng Benjamin Liu