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US 2015/0105705 A1Published application
Method and Device for Performing Alternating Chest Compression and Decompression
AssigneeZOLL Medical Corporation
InventorGary Freeman
Life of this patent
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AssigneeZOLL Medical Corporation
InventorGary Freeman
Estimating the term…
A plunger adapter and a detachable compression pad for piston driven chest compression devices optimizes the application of chest compressions to a fixed location on a patient's chest. The detachable compression pad may be removably secured to the patient above the patient's sternum to ensure that the compression pressure from the piston through the piston adapter is applied to a fixed location on the patient's chest. As the plunger and plunger adapter retract from the chest, the compression pad remains fixed to the patient's chest, and as the plunger and plunger adapter extend from the chest compression unit for subsequent compression strokes, the distal end of the plunger adapter reengages the compression pad to apply compression to a fixed location on the patient's chest.
A method of performing chest compression and decompression on a patient comprising the steps:
An improved chest compression device of the type with a chest compression unit, a mounting device for mounting the chest compression unit on a patient, the chest compression unit comprising a housing, a plunger having a distal end and a proximal end, the proximal end of the plunger disposed in the housing, a reversible motor, a mechanical device connected from the motor to the proximal end of the plunger for driving the plunger in a reciprocating manner with respect to the housing and for translating rotational motion of the motor to linear motion of the plunger, an motor control unit connected to the motor and including a microprocessor, a first monitor operable for monitoring the position of the plunger in respect of the housing, a second monitor operable for monitoring the position of the plunger in respect of the mechanical device for translating rotational motion to linear motion or the rotor, the positions monitored by the first and second monitors being communicated to the motor control unit, wherein the improvement comprises:
Dependencies are inferred from the claim text.