Patents by Inventor Takeru Shibata

Takeru Shibata 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: 7022110
    Abstract: A medical needle includes a solid rod-like inner needle to be inserted into the living tissue, and a hollow cylindrical outer tube needle to be inserted into the living tissue together with the inner needle, while the inner needle is inserted into the inner needle. The hollow cylindrical outer tube needle is retained in the living tissue after the inner needle is removed. A tip portion of the inner needle extending out of a front end bore of the outer tube needle is formed as a spherical crown portion capable of being inserted along a punctured hole previously formed in the living tissue so as not to damage the lumen of the punctured hole. Accordingly, it is possible to reduce a pain upon creating a puncture, subcutaneous bleeding and damage to a blood vessel wall, eliminate coring, and an infectious accident.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: April 4, 2006
    Assignee: SCITEC K.K.
    Inventor: Takeru Shibata
  • Publication number: 20050240152
    Abstract: A medical needle which can greatly reduce the pains involved in creating a puncture, avoid subcutaneous bleeding and damage to blood vessel walls by preventing wrong puncture, eliminate the possibility that coring may occur, causing further damage to the living tissue and a part of the living tissue to flow into a blood vessel, can prevent occurrence of infection accidents due to wrong puncture, and thus can assure a high level of safety of health-care workers.
    Type: Application
    Filed: July 14, 2003
    Publication date: October 27, 2005
    Applicant: SCITEC K.K.
    Inventor: Takeru Shibata
  • Patent number: 5900136
    Abstract: Prior to measuring the concentration of a nonelectrolyte in an electrolyte solution, the electric conductivity of a mixed solution containing electrolytes and the nonelectrolyte is previously measured so as to determine the correlation between the electric conductivity and the concentration of the nonelectrolyte as to the same system. The concentration of the nonelectrolyte in the mixed solution can be determined from the electric conductivity obtained by measuring the mixed solution, based on the correlation.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: May 4, 1999
    Assignees: TOA Electronics Ltd., SciTec Kabushiki Kaisha
    Inventors: Toshio Gotsu, Takeru Shibata, Yoshihiro Tsuzuso, Hiroyuki Suzuki, Toshiyuki Nakama
  • Patent number: 5762769
    Abstract: Prior to measuring the concentration of a nonelectrolyte in an electrolyte solution, the electric conductivity of a mixed solution containing electrolytes and the nonelectrolyte is previously measured so as to determine the correlation between the electric conductivity and the concentration of the nonelectrolyte as to the same system. The concentration of the nonelectrolyte in the mixed solution can be determined from the electric conductivity obtained by measuring the mixed solution, based on the correlation.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: June 9, 1998
    Assignees: TOA Electronics Ltd., Scitec Kabushiki Kaisha
    Inventors: Toshio Gotsu, Takeru Shibata, Yoshihiro Tsuzuso, Hiroyuki Suzuki, Toshiyuki Nakama
  • Patent number: 5605630
    Abstract: Blood guided out of the artery of a patient by a blood pump is introduced into an arterial inlet of a blood flow direction changeover device, and it is then guided from the outlet of the changeover device to a dialzyer through an inlet thereof. The blood then leaves an outlet of the dialyzer, enters the blood flow path changeover device, leaves a venous outlet of the changeover device and returns into the vein of the patient. The dialytic liquid, on the other hand, leaves a dialytic liquid outlet, passes through a dialytic liquid flow direction changeover device and is finally discharged through a dialytic liquid outlet. Then, the respective changeover devices are changed over to reverse the respective flows. This is intermittently repeated. Thus, blood coagulation can be inhibited or prevented.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: February 25, 1997
    Assignee: Scitec Kabushiki Kaisha
    Inventor: Takeru Shibata
  • Patent number: 5417648
    Abstract: An apparatus for generating a pulsation flow into a blood dialyzer in a blood dialyzing apparatus, has a pulsation flow generating apparatus for intermittently pressurizing and releasing a blood circuit. It also has a speed controller for controlling an operation speed of the pulsation flow generating apparatus. A method for charging blood into a blood dialyzer is also disclosed.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: May 23, 1995
    Assignee: Saitteku Kabushiki Kaisha
    Inventor: Takeru Shibata