Patents by Inventor Ting Ting Yu

Ting Ting Yu 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: 6596234
    Abstract: A tubular set is provided for the extracorporeal treatment of blood, for example hemodialysis. The set has a patient arterial line and a patient venous line, each line having a patient connector at one end thereof. Each patient line connects at its other end to a reversing flow valve. The valve also connects to respective first ends of a blood processing unit arterial line and a blood processing unit venous line. Each of the unit lines carry a connector at ends opposed to the first ends for connection respectively to arterial and venous ports of a blood processing device, typically a dialyzer. The reversing flow valve has a first position that respectively connects the patient and unit arterial lines with the patient and unit venous lines. The reversing flow valve has a second position that connects the patient arterial line with the unit venous line, and the unit arterial line with the patient venous line.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: July 22, 2003
    Assignee: DSU Medical Corp.
    Inventors: William J. Schnell, David S. Utterberg, Ting Ting Yu
  • Patent number: 6319465
    Abstract: A tubular set is provided for use with extracorporeal treatment of blood. The set comprises: a flow reversing valve having a patient arterial line and a patient venous line each separately connected to one side of the valve. A unit arterial line and a unit venous line are each separately connected to the other side of the valve. The patient arterial line connects with the unit arterial line in a first position of a valve, and the patient venous line connects with the unit venous line in the same first valve position. The patient arterial line connects with the patient venous line in a second position of a valve, while the patient venous line connects with the unit arterial line in the same second valve position. The flow reversing valve is movable between the first and second positions by relative rotation of part of the valve and adjacent portions of the respective lines.
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: November 20, 2001
    Assignee: DSU Medical Corporation
    Inventors: William J. Schnell, David S. Utterberg, Ting Ting Yu
  • Publication number: 20010031222
    Abstract: A tubular set is provided for use with extracorporeal treatment of blood. The set comprises: a flow reversing valve having a patient arterial line and a patient venous line each separately connected to one side of the valve. A unit arterial line and a unit venous line are each separately connected to the other side of the valve. The patient arterial line connects with the unit arterial line in a first position of a valve, and the patient venous line connects with the unit venous line in the same first valve position. The patient arterial line connects with the patient venous line in a second position of a valve, while the patient venous line connects with the unit arterial line in the same second valve position. The flow reversing valve is movable between the first and second positions by relative rotation of part of the valve and adjacent portions of the respective lines.
    Type: Application
    Filed: May 9, 2001
    Publication date: October 18, 2001
    Inventors: William J. Schnell, David S. Utterberg, Ting Ting Yu
  • Patent number: 6177049
    Abstract: A tubular set is provided for the extracorporeal treatment of blood, for example hemodialysis. The set comprises a patient arterial line and a patient venous line, each line having a patient connector at one end thereof. Each patient line connects at its other end to a reversing flow valve. The valve also connects to respective first ends of a blood processing unit arterial line and a blood processing unit venous line. Each of the unit lines carry a connector at ends opposed to the first ends for connection respectively to arterial and venous ports of a blood processing device, typically a dialyzer. The reversing flow valve has a first position that respectively connects the patient and unit arterial lines with the patient and unit venous lines. The reversing flow valve has a second position that connects the patient arterial line with the unit venous line, and the unit arterial line with the patient venous line.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: January 23, 2001
    Assignee: DSU Medical Corporation
    Inventors: William J. Schnell, David S. Utterberg, Ting Ting Yu