×

Implantable biomedical sensor device, suitable in particular for measuring the concentration of glucose

  • US 5,372,133 A
  • Filed: 02/03/1993
  • Issued: 12/13/1994
  • Est. Priority Date: 02/05/1992
  • Status: Expired due to Fees
First Claim
Patent Images

1. An implantable biomedical sensor device for measuring in vivo a presence and/or concentration of physiological substances in an animate body comprising:

  • a miniaturized electronic responder responsive to an electromagnetic interrogation field for contactlessly exchanging binary coded information with a transmitter/receiver;

    a closed housing of bio-compatible material having qt least one wall, said responder being disposed in said closed housing;

    a work electrode having at least a part thereof disposed outside of said housing and comprising a membrane having at least one surface, hollow fibers in said membrane extending transversely to said at least one surface of said membrane and having internal walls and ends thereon, a coating of conductive polymer on said internal walls, and a redox enzyme disposed in said hollow fibers;

    a processing device in said housing for receiving signals from said work electrode in operation and converting said signals to binary signals;

    electrical connection means between one of said ends of said hollow fibers and said processing device for conducting said signals from said work electrode to said processing device;

    a counter-electrode at least a part thereof disposed outside of said housing; and

    electrical connection means for connecting said counter-electrode and said processing device.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×