http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6709414-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bcff13f8573db698307f919e6385d5c4 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M1-3658 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M1-3663 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B8-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B5-0285 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M1-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M1-14 |
| filingDate | 2003-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2004-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4ac082d75363523330109337ddea9ebd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce0d414d200011576fdc46cef8a094fb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6b1744806efe03b759e15fff2f4e189d |
| publicationDate | 2004-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-6709414-B2 |
| titleOfInvention | System for determining blood flow rate in a vessel using diverted flow measurements |
| abstract | A system and method are provided for determining the performance of a vessel, such as a hemodialysis access, which communicates blood between two locations of a patient. A conduit, such as an external dialysis circuit or an intravascular catheter, is provided in fluid communication with the vessel, and has a diversion point for diverting blood from the vessel into the conduit. The system further includes means for determining a flow rate of the diverted blood through the conduit. A first sensor in communication with the vessel generates at least one signal that is a function of a blood flow rate in the vessel downstream from the diversion point, wherein the downstream flow rate depends on the determined conduit flow rate and the performance of the vessel can be determined based on the signal. In addition, a processor can be provided in communication with the first sensor for determining a flow rate in the vessel upstream from the diversion point from the signal and the conduit flow rate. In a preferred embodiment, the first sensor is an ultrasonic sensor, and the at least one signal represents a time-averaged mean Doppler velocity of blood flow. Still further, additional sensors may be employed to provide a measure of the upstream flow rate as well as the conduit flow rate. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004220484-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9440045-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009192469-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10973973-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10022485-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005119573-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9328969-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010152563-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10517569-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006063824-A1 |
| priorityDate | 1998-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.