Patents Assigned to Envision Medical Corporation
  • Remote CCD video camera with non-volatile digital memory
    Patent number: 5896166
    Abstract: A video camera system stores operating parameter information for reading by the system to provide optimum operating conditions, collects information reflecting system uses for later reading by the system to provide a performance history, and is relatively small and operates with a reduced number of electrical lines to transmit electrical information.
    Type: Grant
    Filed: January 23, 1996
    Date of Patent: April 20, 1999
    Assignee: Envision Medical Corporation
    Inventors: David A. D'Alfonso, Jordan C. Christoff
  • Electrically isolated sterilizable endoscopic video camera head
    Patent number: 5868664
    Abstract: A video camera head configured for use with an endoscope and having a conductive inner chamber for shielding the imager and imager electronics from electro-magnetic interference is described in which the inner chamber is substantially isolated from contact by a human or conductive fluid through a sealed outer non-conductive housing. Another aspect of the invention involves hermetically sealing the inner chamber, thus facilitating the use of steam autoclave sterilization, including flash sterilization, to sterilize the camera head.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: February 9, 1999
    Assignee: Envision Medical Corporation
    Inventors: Craig Speier, Robert Walls
  • Sterilizable CCD video camera
    Patent number: 5587736
    Abstract: An apparatus and related method for protecting a CCD from thermal damage or degradation, including a housing having double walls separated by a vacuum, and a support member for positioning the CCD within the housing. The housing may also act as a barrier to electromagnetic interference and contaminants.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: December 24, 1996
    Assignee: Envision Medical Corporation
    Inventor: Robert R. Walls
  • Remote 3D video camera system
    Patent number: 5428386
    Abstract: A remote endoscopic video camera system is provided which is capable of providing both left and right eye pre-video signals for generating a three-dimensional image. The left and right eye pre-video signals are provided by first and second imagers which are capable of being enclosed in a single camera head, which, in turn, is capable of being coupled to the remaining camera circuitry through a single cable, without causing substantial interference between the two imagers.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: June 27, 1995
    Assignee: Envision Medical Corporation
    Inventors: David A. D'Alfonso, Jordan C. Christoff