Chest compression apparatus for cardiac arrest

Details Chest compression apparatus for cardiac arrest Chest compression apparatus for cardiac arrest

A - Human Necessities

61

H

A61H 31/00 (2006.01)

Patent

CA 2240063

The invention is an apparatus for increasing intrathoracic pressure for resuscitating cardiac arrest patients. The apparatus comprises a flexible, substantially inelastic belt (40) wrapped around the patient's chest (12) and attached to a force converter. The force converter converts a downwardly directed force into a chest resultant, which depresses the sternum, and two belt tightening resultants. The force converter comprises a pair of arm assemblies (16, 18), each having a pair of spaced arms (22, 24), which are pivotally mounted to a base (14). The base is positioned near the patient's sternum and the ends of the belt attach to one end of each arm assembly. The opposite, handle ends (30, 32) of the arm assemblies are depressed toward the chest causing tightening of the belt and compression of the chest cavity.

La présente invention concerne un appareil servant à augmenter la pression intrathoracique pour ranimer les patients ayant subi un arrêt cardiaque. Cet appareil comprend une ceinture souple, sensiblement dépourvue d'élasticité (40), que l'on passe autour du torse du patient (12) et qui est montée sur un convertisseur de force. Il convertit une force dirigée vers le bas en une résultante agissant sur le thorax, qui enfonce le sternum, et deux résultantes qui serrent la ceinture. Ce convertisseur de force comprend deux ensembles de bras (16, 18) dont chacun possède deux bras espacés (22, 24) montés sur un support (14) de manière à pouvoir pivoter. On place le support près du sternum du patient et on attache les extrémités de la ceinture à une extrémité de chaque ensemble de bras. On abaisse en direction du thorax les extrémités opposées, pourvues de poignées (30, 32), des ensembles de bras, ce qui resserre la ceinture et comprime la cavité thoracique.

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