| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5cf2af5e13c3965e6373d2c8c5e48939 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M60-892
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T74-18312
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M60-113
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S128-03 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M60-894
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M60-441
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M60-196
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M60-538 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M60-441
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M60-894
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M60-538
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M60-268
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M60-196 |
| filingDate |
1977-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1977-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3d0c90fe8a5d32ee957ccacf377226d7 |
| publicationDate |
1977-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4058855-A |
| titleOfInvention |
Cardiac pumping device |
| abstract |
A pulsatile flow pumping unit adapted to serve as a total cardiac replacement device, a cardiac assist pump for orthotopic placement, for extracorporeal application in conjunction with a membrane oxygenator for cardiopulmonary support during surgery or critical illnesses, for pulsatile flow coronary artery perfusion, and for filling and emptying of an aortic diastolic augmentation balloon for cardiac assist is provided. The pumping unit features simplicity of construction, comparative economy and reliability by utilizing a minimum number of working parts including a large diameter slitted rotary driver and cam operated follower means which avoids close machining tolerances and attendant high cost of manufacturing. The device automatically adjusts its rate of pumping in accordance with both preload (filling pressure) and afterload (pulmonic and systemic pressure) and in addition modifies its stroke volume in a downward direction when confronted with high afterload. The automatic adjustment of the device during operation depending on several variables is accomplished without electronic control or monitoring. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4781716-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8540618-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5209654-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011138530-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2002198436-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110168626-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110168626-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0418208-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6406422-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5033270-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4968422-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008289703-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4185617-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005148810-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5638704-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4756705-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5139517-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7066874-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9433715-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4493314-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-8909041-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9694122-B2 |
| priorityDate |
1976-02-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |