Patents by Inventor Rodney S. Omachi

Rodney S. Omachi 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).

  • Pressure-measuring method and needle system for hemodialysis
    Patent number: 5454374
    Abstract: A method and devices for measuring pressure within blood vessels used for hemodialysis and also for flow of blood into or from such blood vessels during hemodialysis. In one aspect of the method, a currently available hemodialysis set is used. This set comprises a tube (14) attached at one end to a hollow needle (12) and closed at the other end by a cap (19) which covers a proximal connector (18). The method comprises puncturing the blood vessel with the needle (12), measuring the distance to which blood flows under pressure into tube (14), calculating that pressure from that distance, and finally using the hemodialysis set for flow of blood in the performance of hemodialysis. In other aspects of the method, the improved devices of the invention are used.
    Type: Grant
    Filed: January 17, 1992
    Date of Patent: October 3, 1995
    Inventor: Rodney S. Omachi