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US 6,036,662 AGranted
Oscillatory chest compression device
AssigneeAmerican Biosystems, Inc.
InventorsNicholas P. Van Brunt, Donald J. Gagne
Life of this patent
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Abstract
An oscillatory chest compression device includes an oscillatory air flow generator and a positive air flow generator. A first feedback system controls the oscillation rate of the oscillatory air flow generator, and a second feedback system controls the peak pressure created by the positive air flow generator.
Claims12
An apparatus for generating oscillatory air pulses in a bladder positioned about a person, comprising:
- an oscillatory air flow generator, comprising
- an air chamber;
- a reciprocating diaphragm operably connected with the air chamber,
- a rod having a first end and a second end, the first end operably connected with the diaphragm, and the rod extending generally orthogonal to the diaphragm;
- a crankshaft operably connected with the second end of the rod and extending generally orthogonal to the rod;
- and
- a first motor operably connected with the crankshaft;
- a continuous air flow generator operably connected with the oscillatory air flow generator;
- a first feedback and control means operably connected with the oscillatory air flow generator for maintaining the frequency of the oscillatory air flow generator at a predetermined value;
- and a second feedback and control means operably connected with the continuous air flow generator for continuously varying the output pressure of the continuous air flow generator in order to maintain the peak pressure generated by the positive air flow generator at a predetermined value.
7 more elements
Dependencies are inferred from the claim text.