Sensing device for cardio-pulmonary functions

Claim 2

A sensor for the measurement of cardio-pulmonary functions, comprising: first means for the transcutaneous measurement of a blood gas partial pressure, said first means including a heat conducting member having a skin contact surface; and second means for measuring at least one of the heartbeat and respiration rate, said second means including an electrically conducting electrode comprising said heat conducting member.

Claim 3

A device as claimed in claim 1, said first means comprising one of a PO 2 and PCO 2 sensor.

Claim 4

A device as claimed in claim 1, said second means including circuit means for measuring the heartbeat and respiration rate, and being electrically connected to said heat conducting member.

Claim 5

A device as claimed in claim 1, said first means comprising one of a PO 2 and PCO 2 sensor including an electrode pair electrically connected to a measuring circuit by a pair of lead wires, and said second means including a respiration and heartbeat measuring circuit electrically connected to said heat conducting member by a further lead wire.

Claim 6

S. A device as claimed in claim 4, said pair of lead wires and said further lead wire together constituting a three-core cord extending from said sensor to said respective measuring circuits:

Claim 7

A sensor for the -simultaneous and continuous measurement of the cardio-pulmonary functions of the human body, comprising; (a) An electrode assembly for the transcutaneous measurement of partial gas pressure in arterial blood comprising the following three disassemblably assembled parts: an electrode part having an anode or reference electrode having a ring-shaped working surface, a cathode or measuring electrode having a working surface inside said anode or reference electrode, and an electrode holder of thermally and electrically insulating material for holding said anode or reference electrode and said cathode or measuring electrode apart from one another in insulated relation, a membrane holder part having a blood gas permeable membrane thereon and a membrane holder for holding the periphery of said membrane, and a skin heating part having an electrical heater, and a heat conducting metal block to which said heater is heat- conductively connected, said heat conducting metal block having a skin-contact surface; (b) means for measuring of least one of the respiration rate and heartbeat connected to said skin-contact surface, said surface comprising an electrode of said measuring means.

Claim 8

A sensor for the -simultaneous and continuous measurement of the cardio-pulmonary functions of the human body, comprising; (a) An electrode assembly for the transcutaneous measurement of partial gas pressure in arterial blood comprising the following three disassemblably assembled parts: an electrode part having an anode or reference electrode having a ring-shaped working surface, a cathode or measuring electrode having a working surface inside said anode or reference electrode, and an electrode holder of thermally and electrically insulating material for holding said anode or reference electrode and said cathode or measuring electrode apart from one another in insulated relation, a membrane holder part having a blood gas permeable membrane thereon and a membrane holder for holding the periphery of said membrane, and a skin heating part having an electrical heater, and a heat conducting metal block to which said heater is heat- conductively connected, said heat conducting metal block having a skin-contact surface; (b) means for measuring of least one of the respiration rate and heartbeat connected to said skin-contact surface, said surface comprising an electrode of said measuring means.