A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 1/10 (2006.01) A61M 1/12 (2006.01)
Patent
CA 2261846
A biomechanical heart comprising extra-aortic diastolic balloon pumping means consisting of a pump housing (7) arranged between two ducts (5, 9) of an aortic shunt (6) actuated by a muscle (8) energised by electric pulses. A balloon (15) with a substantially ring-shaped cross-section is inserted between the inner walls of the pump housing (7) to define an axial channel (17) communicating with said ducts (5, 9) of the aortic shunt (6). Said channel is connected via a flexible tube (19) to means (20) for injecting a gas flow into said balloon (15) to inflate same and thus reduce the cross-sectional area of flow of the axial channel (17), then deflating said balloon to increase said cross-sectional area of flow of the axial channel (17).
La présente invention concerne un coeur bio-mécanique du type comportant des moyens de contre-pulsion diastolique extra-aortique, constitués d'une cage de pompage (7), disposée entre deux conduits (5, 9) d'une dérivation aortique (6) dont l'actionnement est commandé par un muscle (8) excité par des impulsions électriques. Ce coeur est caractérisé en ce que les parois internes de la cage de pompage (7), reçoivent un ballon (15) de section droite sensiblement annulaire, de façon à ménager un canal axial (17) en communication avec les deux conduits (5, 9) de la dérivation aortique (6), qui est relié par un tube souple (19) à des moyens (20) aptes à injecter dans ledit ballon (15) un flux gazeux apte à le gonfler, de façon à diminuer la section de passage du canal axial (17) puis à le dégonfler, de façon à augmenter ladite section de passage (17).
Guldner Norbert
Hutzenlaub Jens
Thuaudet Sylvain
Goudreau Gage Dubuc
I.s.t. Cardiology Sa
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