Patents by Inventor Lorin P. McRae

Lorin P. McRae 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: 5823972
    Abstract: A minimally invasive bladder pressure and urinary flow measurement apparatus and method, the apparatus including a cuff configured to be removably mounted to the penis of the patient and an inflation system for selectively inflating and rapidly deflating the cuff. A pressure transducer is mounted to a catheter and inserted into the urethra to a position upstream from the cuff. A bead on the catheter helps the cuff hold the catheter in place. A urine collection and measurement system is provided to measure the volume and rate of urine discharged by the patient. The transient response also provides an indication whether a constriction of the urethra is proximal or distal.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: October 20, 1998
    Inventor: Lorin P. McRae
  • Patent number: 5807278
    Abstract: A noninvasive bladder pressure and urinary flow measurement apparatus and method, the apparatus including a pressure cuff configured to be removably mounted to the penis of the patient and an inflation system for selectively inflating and deflating the pressure cuff. A urine collection and measurement system is provided to measure the volume and rate of urine discharged by the patient. The transient response also provides an indication whether a constriction of the urethra is proximal or distal.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: September 15, 1998
    Inventor: Lorin P. McRae
  • Patent number: 4233980
    Abstract: Disclosed is an inflatable bladder and a pressure plate which may be selectively positioned to hold the bladder so as to apply pressure to a blood vessel, for example. The bladder includes two sheets of flexible, non-elastic material. Expansion of the bladder may occur by inflation to separate the two sheets and press them outwardly against the pressure plate and the area of the subject to be compressed. An adjustable holder maintains the pressure plate in position. Pressure within the bladder may be monitored as an indication of the pressure exerted against the subject. Both the bladder and the pressure plate may be generally transparent to permit visual inspection and monitoring of the area being compressed.
    Type: Grant
    Filed: December 11, 1978
    Date of Patent: November 18, 1980
    Assignee: Narco Scientific Industries, Inc.
    Inventors: Lorin P. McRae, Mark M. Kartchner