EP0127148A1
Expired / Lapsed
EP
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An electrode device for transcutaneously measuring a blood gas parameter and for sensing a bioelectrical signal and an electrode assembly comprising such an electrode device
Assignee: Radiometer AS
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Filing: 1984-05-24
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Granted: —
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Expires: 2004-05-24
Abstract
Abstract An electrode assemblyfortranscutaneously measuring a blood gas parameter and for measuring a bioelectrical signal comprises two separate electrode devices (10, 40), one of which (10) further comprises an electrochemical measuring electrode system. The electrochemical measuring electrode system comprises a reference electrode of a potentiometric electrode system and an anode of a polarographic electrode system constituted by a single metallic body (13), a pH-electrode (31,32) of the potentiometric electrode system, and a noble metal cathode (33 34) of the polarographic electrode system. The biolectrical signal sensing electrode of the electrode device (10) is further constituted by the metallic body (13). A first part of the metallic body (13) is covered by an electrolyte solution (28) which communicates electrolytically therewith and further with the pH-glass electrode and the noble metal cathode, and a second part of which is not covered by the electrolyte solution but adapted to electrically conductively communicate with a skin surface part of a test person or a patient through an electrically conductive contact liquid (19). The membrane separates the first and the second part of the metallic body from one another. The second electrode (40) comprises a bioelectrical signal sensing electrode (41), which is adapted to electrically conductively communicate with a skin surface part of a test person or patient through an electrically conductive contact liquid (20). By means of the electrode assembly coincident measuring results of the blood gas partial pressures of oxygen and carbon dioxide and of a bioelectrical signal such as the ECG (Electrocardiography), the RR (Respiration rate) or the heart rate of the test person or patient is obtainable (Fig. 3).
Inventors
- 👤 Peter Christian Klitgaard
- 👤 Knud Gronlund Pedersen
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 13:58
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/145; A61B5/1468; A61B5/1477; A61B5/14542; A61B5/24; A61B5/25; A61B5/279; A61B5/28; A61B5/283; A61B5/288; A61B5/30; A61B5/307; A61B5/308; A61B5/43; A61B5/4306; A61B5/4343; A61B5/4362; A61B2562/00; A61B2562/02; A61B2562/0209; A61B2562/0215; A61B2562/0217
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
150 words
An electrode device for transcutaneously measuring a blood gas parameter and for sensing a bioelectrical signal, comprising: a housing having a front surface adapted to be arranged in contact with a skin surface part of a test person or a test object, an electrochemical measuring electrode system for measuring said blood gas parameter and comprising: at least two electrochemical electrodes, the electrochemical electrodes being arranged in the housing electrically insulated in relation to one another, and an electrolyte solution, the electrolyte solution being arranged electralytically communicating with the electrodes and covering at least a part thereof, and an electrode for sensing said bioelectrical signal, the bioelectrical signal sensing electrode being constituted by one of the electrodes of the electrochemical electrode system, the said one electrode being adapted to electrically conductively communicate with the skin surface part when the front surface of the electrode device housing is arranged in contact therewith.
Claim 2
Dependent Claim
150 words
An electrode device for transcutaneously measuring a blood gas parameter and for sensing a bioelectrical signal, comprising: a housing having a front surface adapted to be arranged in contact with a skin surface part of a test person or a test object, an electrochemical measuring electrode system for measuring said blood gas parameter and comprising: at least two electrochemical electrodes, the electrochemical electrodes being arranged in the housing electrically insulated in relation to one another, and an electrolyte solution, the electrolyte solution being arranged electralytically communicating with the electrodes and covering at least a part thereof, and an electrode for sensing said bioelectrical signal, the bioelectrical signal sensing electrode being constituted by one of the electrodes of the electrochemical electrode system, the said one electrode being adapted to electrically conductively communicate with the skin surface part when the front surface of the electrode device housing is arranged in contact therewith.
Claim 3
Dependent Claim
67 words
An electrode device according to claim 1, the said one electrode having a first part and a second part, the first part being covered by the electrolyte solution and electrolytically communicating therewith, and the second part being uncovered by the electrolyte solution and adapted to electrically conductively communicate with the skin surface part when the front surface of the electrode device housing is arranged in contact therewith.
Claim 4
Dependent Claim
60 words
An electrode device according to claim 2, the first part and the second part of the said one electrode being separated from one another by a membrane permeable to the blood gas, the membrane being arranged in front of the electrodes and defining an electrolyte solution chamber in front of the electrodes, in which chamber the electrolyte solution is confined.
Claim 5
Dependent Claim
51 words
An electrode device according to any of the claims 2 or 3, the second part of the said one electrode being adapted to electrically conductively communicate with the skin surface part through an electrically conductive contact liquid when the front surface of the electrode device housing is arranged in contact therewith.
Claim 6
Dependent Claim
28 words
An electrode device according to claim 4, the second part of the said one electrode being recessed in relation to the front surface of the electrode device housing.
Claim 7
Dependent Claim
38 words
An electrode device according to any of the preceding claims, the electrochemical measuring electrode system comprising a potentiometric electrode system including a reference electrode and a pH-sensitive electrode, the reference electrode further constituting the bioelectrical signal measuring electrode.
Claim 8
Dependent Claim
23 words
An electrode device according to claim 6, the reference electrode being a silver reference electrode, and the pH-sensitive electrode being a pH-glass electrode..
Claim 9
Dependent Claim
36 words
An electrode device according to any of the preceding claims, the electrochemical measuring electrode system comprising a polarographic sensing electrode system including an anode and a cathode, the anode further constituting the bioelectrical signal measuring electrode.
Claim 10
Dependent Claim
21 words
An electrode device according to claim 8, the anode being a silver anode, and the cathode being a noble metal cathode.
Claim 11
Dependent Claim
35 words
An electrode device according to claims 6 or 7 and 8 or 9, the reference electrode of the potentiometric electrode system and the anode of the polarographic electrode system being constituted by a single electrode.
Claim 12
Dependent Claim
15 words
An electrode device according to claim 10, the said single electrode being a silver electrode.
Claim 13
Dependent Claim
51 words
An electrode device according to any of the preceding claims, further comprising a second bioelectrical signal sensing electrode, the second bioelectrical signal sensing electrode being constituted by a separate metallic body, the separate metallic body being electrically insulated in relation to the said one electrode and having an exposed surface part.
Claim 14
Dependent Claim
25 words
An electrode device according to claim 12, the metallic body constituting the second bioelectrical signal sensing electrode being a part of the electrode device housing.
Claim 15
Dependent Claim
25 words
An electrode device according to any of the claims 4-13, further comprising a fastening means for fastening the electrode device to said skin surface part.
Claim 16
Dependent Claim
47 words
An electrode device according to claim 14, the fastening means being a separate fastening component of an annular configuration, the fastening component being adapted to receive the housing of the electrode device and, together with the front surface of the electrode device, define a contact liquid chamber.
Claim 17
Dependent Claim
252 words
An etectrode assembly for transcutaneously measuring a blood gas parameter and for measuring a bioelectrical signal, comprising: a first electrode device comprising: a housing having a front surface adapted to be arranged in contact with a first skin surface part of a test person or a test object, an electrochemical measuring electrode system for measuring said biood gas parameter and comprising: at least two electrochemical electrodes, the electrochemical electrodes being arranged in the housing electrically insulated in relation to one another, and an electrolyte solution, the electrolyte solution being arranged electrolytically communicating with the electrodes and covering at least a part thereof, and an electrode for sensing said bioelectrical signal, said bioelectrical signal sensing electrode being constituted by one of the electrodes of the electrochemical electrode system, the said one electrode being adapted to electrically conductively communicate with said first skin surface part when the front surface of the first electrode device housing is arranged in contact therewith, and a second electrode device comprising: a housing having a front surface adapted to be arranged in contact with a second skin surface part of a test person or a test object, and an electrode for sensing said bioelectrical signa! , the bioetectrical signal sensing electrode being adapted to electrically conductively communicate with said second skin surface part when the front surface of the second electrode device housing is arranged in contact therewith, said first and second bioelectrical signal sensing electrodes being adapted to cooperate with a measuring apparatus for measuring said bioelectrical signal.
Claim 18
Dependent Claim
252 words
An etectrode assembly for transcutaneously measuring a blood gas parameter and for measuring a bioelectrical signal, comprising: a first electrode device comprising: a housing having a front surface adapted to be arranged in contact with a first skin surface part of a test person or a test object, an electrochemical measuring electrode system for measuring said biood gas parameter and comprising: at least two electrochemical electrodes, the electrochemical electrodes being arranged in the housing electrically insulated in relation to one another, and an electrolyte solution, the electrolyte solution being arranged electrolytically communicating with the electrodes and covering at least a part thereof, and an electrode for sensing said bioelectrical signal, said bioelectrical signal sensing electrode being constituted by one of the electrodes of the electrochemical electrode system, the said one electrode being adapted to electrically conductively communicate with said first skin surface part when the front surface of the first electrode device housing is arranged in contact therewith, and a second electrode device comprising: a housing having a front surface adapted to be arranged in contact with a second skin surface part of a test person or a test object, and an electrode for sensing said bioelectrical signa! , the bioetectrical signal sensing electrode being adapted to electrically conductively communicate with said second skin surface part when the front surface of the second electrode device housing is arranged in contact therewith, said first and second bioelectrical signal sensing electrodes being adapted to cooperate with a measuring apparatus for measuring said bioelectrical signal.
Claim 19
Dependent Claim
32 words
An electrode assembly according to claim 16, further comprising a junction, the first electrode device and the second electrode device being connected to the junction for joint connection to the measuring apparatus.
Claim 20
Dependent Claim
70 words
An electrode assembly according to claims 16 or 17, the first electrode device having any of the characteristics of the claims 2-15, and the bioelectrical signal sensing electrode of the second electrode device being adapted to electrically conductively communicate with said second skin surface part through an electrically conductive contact liquid when the front surface of the electrode device housing of the second electrode device is arranged in contact therewith.
Claim 21
Dependent Claim
31 words
An electrode assembly according to claim 18, the bioelectrical signal 'sensing electrode of the second electrode device being recessed in relation to the front surface of the second electrode device housing.
Claim 22
Dependent Claim
21 words
An electrode assembly according to claim 19, the bioelectrical signal sensing electrode of the second electrode device being a silver electrode.
Claim 23
Dependent Claim
61 words
An electrode assembly according to any of the claims 16-20, the second electrode device further comprising a temperature sensing means, the temperature sensing means being adapted to thermally conductively communicate with the second skin surface part for sensing the temperature thereof when the front surface of the second electrode device housing is arranged in contact with the second skin surface part.
Claim 24
Dependent Claim
32 words
An electrode assembly according to any of the claims 17-19, the second electrode device further comprising a fastening means for fastening the second electrode device to said second skin surface pa rt.
Claim 25
Dependent Claim
54 words
An electrode assembly according to claim 22, the fastening means of the second electrode device being a separate fastening component of an annular configuration, the fastening component being adapted to receive the housing of the second electrode device and, together with the front surface of the second electrode device, define a contact liquid chamber.
Claim 26
Dependent Claim
52 words
An electrode assembly according to claim 22, and comprising a first electrode device according to claim 15, the separate fastening component of the first electrode device and the separate fastening component of the second electrode device being adapted to further enable interchanging of the electrode devices in relation to the fastening components.
References Cited (Backward Citations)
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