| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9eae8c9f91cf4fde470b64db683dc42d |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B8-488
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B8-5207
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B8-4227
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B8-4483
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B8-461
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B8-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B8-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B8-06 |
| filingDate |
2019-02-07^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_470368ce0c9b31970b3d6389f6d10ef1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_38e73c3802ae98096b0921433d94ee62 |
| publicationDate |
2021-08-19^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2021251599-A1 |
| titleOfInvention |
Ultrasound blood-flow monitoring |
| abstract |
The invention provides a method of monitoring blood flow in a vertebrate animal subject. Unfocussed plane-wave ultrasound pulses are transmitted into the subject, along a transmission axis, from a single-element ultrasound transducer ( 2 ) fastened to the subject ( 5 ). Reflections of the ultrasound pulses are received, generating a succession of pulse-Doppler response signals over time. Each pulse-Doppler response signal is processed to determine a first respective spatial-maximum velocity value for blood flowing towards the single transducer element ( 2 ), and a second respective spatial-maximum velocity value for blood flowing away. Heartbeats are identified from said spatial-maximum velocity values and a quality metric is assigned to each identified heartbeat. A subset of the spatial-maximum velocity values is identified for which the assigned quality metric exceeds a threshold level. The values from the subset are monitored, and, when a set of values from the subset satisfies a predetermined alert criterion an audible or visual alert is signalled. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2021007711-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11491353-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11717255-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11724132-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11617904-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-116616819-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114376603-A |
| priorityDate |
2018-02-07^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |