| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a9f26e4a5f31b44fe3000885bc6549f4 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B5-0536 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B5-05
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R27-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R27-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B5-04 |
| filingDate |
2006-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2007-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e12113823d1fb9cc9f6493cf9dfcd94b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8e9b842847d87cf371393e18259fe5bd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_63cc6786bdbd0dd7230beb25ec46144c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_11e0a4a3b4551c0bb6f5227cd1d5c0aa |
| publicationDate |
2007-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-7288943-B2 |
| titleOfInvention |
Electroimpedance tomograph with common-mode signal suppression |
| abstract |
An electroimpedance tomograph is provided with a plurality of electrodes ( 1 ), which can be placed on the body of a patient and are connected to a control and evaluating unit ( 20 ) via a selector switch ( 60 ). The control and evaluating unit ( 20 ) cooperates with the selector switch ( 60 ) such that two electrodes each are supplied with alternating current from an AC power source ( 22 ). The detected analog voltage signals of the other electrodes are sent into the control and evaluating unit ( 20 ) via a measuring amplifier ( 62 ) and AD converter ( 64 ) and are processed there in order to reconstruct the impedance distribution of the body in the plane of the electrodes therefrom. A symmetrical AC power source ( 22 ) is used to reduce common-mode signals. To make it possible to suppress errors due to common-mode signals, provisions are made for the control and evaluating unit ( 20 ) to be set up for making available an additional common-mode signal at an output during an adjusting mode of operation and to send it to the body via common-mode signal electrodes ( 4, 90 ) that can be placed on the body. The control and evaluating unit ( 20 ) is prepared, furthermore, to adjust the measuring amplifier ( 62 ) according to value and phase for each electrode pair connected by the selector switch ( 60 ) such that the common-mode signal at the output of the measuring amplifier ( 62 ) is minimized, and the adjusted parameters are stored for each electrode pair. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11612332-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7941210-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10307074-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102755163-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102961152-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9585593-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007010758-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8611991-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10819214-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9615767-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10070800-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102323302-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102323302-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11737678-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102961152-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11660013-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8700121-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010303321-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9724012-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9149225-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102755163-A |
| priorityDate |
2005-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |