ph-measuring endo-radiosonde

• US 3,133,537 A
• Filed: 05/12/1961
• Issued: 05/19/1964
• Est. Priority Date: 05/19/1960
• Status: Expired due to Term

• Current Assignee: Herbert Muth
• Original Assignee: Herbert Muth
• Inventors: Muth, Herbert
• Application Number:
  US04/109,747
• Time in Patent Office: 1,103 Days
• US Class Current: 600/302
• CPC Class Codes: A61B 5/073 Intestinal transmitters

Claims

1. AN ENDO-RADIOSONDE FOR MEASURING THE PH VALUE IN THE STOMCH AND/OR INTESTINES OF A PATENT AND TRANSMITTING THE MEASURED VALUE OT A RECEIVER, SAID SONDE COMPRISING, IN COMBINATION:

A HOUSING;

A TRANSMITTER CIRCUIT IN SAID HOUSING;

A BATTERY IN THE HOUSING AND HAVING TWO ELECTRODES ARRANGED IN AN ELECTROLYTE FOR DELIVERING A VOLTAGE NECESSARY FOR OPERATING SAID TRANSMITTER CIRCUIT;

A PH MEASURING ASSEMBLY INCLUDING A FURTHER ELECTRODE ARRANGED OUTSIDE THE HOUSING AND WETTABLE BY INTESTINAL FLUIDS;

A SEMI-PERMEABLE LAYER FORMING ONE EXTERNAL WALL OF THE BATTERY;

ONE ELECTODE OF THE BATTERY FORMING PART OF THE PH MEASURING ASSEMBLY AND BEING ARRANGED NEAR THE SEMIPERMEABLE LAYER, THE OTHER ELECTRODE BEING DISPOSED REMOTE FROM SAID LAYER AND CONNECTED TO SAID CIRCUIT, SAID FURTHER ELECTRODE BEING CONNECTED WITH SAID ENDO-RADIOSONDE FOR PORDUCING, IN COOPERATION WITH THE SIMI-PERMEABLE LAYER AND SAID ONE ELECTORDE OF SAID BATTERY, A VOLTAGE WHICH IS VARIABLE WITH THE CHANGE IN PH CONCENTRATIN, AND SAID ONE BATTERY ELECTRODE AND SAID FURTHER ELECTRODE BEING CONNECTED TO SAID CIRCUIT TO PROVIDE THE LATTER WITH A VARIABLE VOLTAGE FOR TRANSMITTING INFORMATION.