http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2649867-C
Outgoing Links
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|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e58d947cc47bd5e0b313f8337dafa118 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M2205-3355 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M5-365 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M5-16827 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M2205-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M2205-50 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M5-14224 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G05D16-2046 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M5-16809 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F04B49-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01P21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F04B49-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F04B49-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M5-142 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G05D16-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F04B13-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M5-172 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M5-168 |
| filingDate | 2000-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2010-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_13e5029ade8faa0df58a55e3df2f590f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5556b9d961911a8dae0c5473335edf05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3d5b35b8ebdee8050696cbae9d2e137e |
| publicationDate | 2010-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2649867-C |
| titleOfInvention | Method for compensating for pressure differences across valves in cassette type iv pump |
| abstract | A pump used to infuse a fluid into a patient is controlled in accordance with an algorithm that enables a microprocessor (17) to monitor and adjust each pump cycle to compensate for a differential pressure between the pump's inlet and outlet. The algorithm defines a fluid delivery protocol that is applied in controlling the operation of the pump to achieve a desired rate, volume, and timing of the fluid infusion. Fluid is delivered by the pump when a plunger (42) compresses an elastomeric membrane (29) overlying a fluid chamber (30). Due to the small volume of the chamber, an incremental change in the plunger position before the delivery stroke produces a significant change in the delivery pressure. At the beginning of a pump cycle, the microprocessor determines the differential pressure between the inlet and outlet of the pump, and adjusts the plunger position before the delivery stroke to compensate for the differential pressure. A retraction of the plunger from the home position decreases the delivery pressure of the fluid, and an advancement of the plunger increases it. After the position of the plunger is adjusted to compensate for the differential pressure, the pump cycle proceeds. Following the plunger stroke, the outlet pressure is used to determine the actual volume of fluid delivered. The duration of the plunger stroke in the next pump cycle is adjusted to compensate for any volume delivery error produced by the differential pressure compensation. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9545337-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8790096-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9693896-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9126219-B2 |
| priorityDate | 1999-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.