| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_22614da09f60a2a1a705b665bc3be489
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_67716706dd5f8c326e93fb280579d0db
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1b49b135f099e96a0e4cab2427a48ae8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4f8600bce2a064a9134789fec96834af
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_78af52cf3dedf05c5bc07c68a90eba6f |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B5-085 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B5-085 |
| filingDate |
2003-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b479420dfb00db4af9cf289663eea532
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b0c4a3f1115df25010f2b4831f23b182
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f177dbd86e54a9e7df278d1a38b0a6c0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_de58d639113226368be6acb29d4c5b9d |
| publicationDate |
2004-02-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2004012597-A1 |
| titleOfInvention |
System for diagnosing and treating sleep apnea |
| abstract |
Two programs measure upper airway resistance using Resistance = Pressure/Flow. Raw flow and pressure data is divided into breaths and time adjusted so each breath starts with the value zero. Each breath is graphed as flow in the y-axis and time in the x-axis. The slope between points Flow =0 and Flow=0.20 is calculated. The resistance is the inverse of the slope. The second program determines whether a breath is flow limited or not. It also uses the flow and time data to perform a curve fitting to describe the flow-time in meaningful polynomial function F (P)= A t3 + B t2 + Ct + D. The derivative of this function is F' = 3At2+2Bt+C. If the value of the derivative F' at maximum flow is less than or equal zero, then it is a flow limited breath, otherwise, it is non flow limited breath. Also, the need for a pressure-monitoring catheter is obviated. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8910632-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10004862-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11759590-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2006037627-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7308309-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1809357-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10960161-B2 |
| priorityDate |
2002-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |