Surgery: kinesitherapy – Kinesitherapy – Exercising appliance
Patent
1995-06-29
1998-04-28
Clark, Jeanne M.
Surgery: kinesitherapy
Kinesitherapy
Exercising appliance
601 1, 601 44, 601134, A61H 3100
Patent
active
057438641
ABSTRACT:
An apparatus and method for performing cardio-plumonary resuscitation with active reshaping of a patient's chest are disclosed. A piston positioned near a patient's sternum is intermittently activated to produce cycles of direct compression on the patient's heart while an annular collar is simultaneously placed securely around a patient's thoracic cavity to limit the circumferential changes in the thoracic cavity. The combination of the annular collar and piston combine to direct blood flow both by direct cardiac compression/decompression and by varying the intrathoracic cavity pressure. The annular collar can be formed by a single non-extensible membrane or by a non-extensible outer membrane and an extensible inner membrane with a bladder therebetween filled with a substantially non-compressible fluid. The collar may be attached to the piston and the piston actively driven away from the patient during decompression resulting in an active reshaping of the chest to lower central venous pressure and thereby induce a rapid return of blood to the thoracic cavity.
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Clark Jeanne M.
Michigan Instruments, Inc.
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