A device for compressing the chest of a cardiac arrest victim.

A system and method for determining CPR induced chest compression depth using two sensors while accounting for different orientations of the two sensors.

The present invention provides, among other things, apparatus and methods of use for treating a subject in need of assistance with breathing. In some embodiments the subject suffers from airflow obstruction. In some embodiments, the subject suffers from chronic obstructive pulmonary disease.

A system including a compressible element configured to compress a muscle in a limb of a user, a controller configured to control a sequence, rate or amount of compression of the compressible element, and a generator configured to move a working fluid to compress the compressible element as controlled by the controller. The sequence, rate or amount of compression of the compressible element is established to reduce an amount of effort expended by a heart of a user to move a volume of blood. Another system and a method are also disclosed.

In some embodiments, a method may include clearing a biological airway. The method may include positioning an inner wearable harness on a torso of a subject. The method may include selectively positioning at least some of a plurality of engines on and/or adjacent at least one treatment area. At least one of the plurality of engines may be releasably couplable to the inner wearable harness. The method may include positioning an outer wearable harness on a torso of a subject. The method may include applying an oscillation force to at least one of the treatment areas using at least some of the plurality of engines. The method may include adjusting the applied oscillation force to the treatment area by activating the outer wearable harness. The method may include mobilizing at least some secretions in an airway within the subject substantially adjacent the at least one treatment area.

A system applies cardiopulmonary resuscitation (CPR) to a recipient. An automated controller is provided together with a compression device which periodically applies a force to a recipient's thorax under control of the automated controller. A band is adapted to be placed around a portion of the torso of the recipient corresponding to the recipient's thorax. A driver mechanism shortens and lengthens the circumference of the band. By shortening the circumference of the band, radial forces are created acting on at least lateral and anterior portions of the thorax. A translating mechanism may be provided for translating the radial forces to increase the concentration of anterior radial forces acting on the anterior portion of the thorax. The driver mechanism may comprise a tension device for applying a circumference tensile force to the band. The driver mechanism may comprise an electric motor, a pneumatic linear actuator, or a contracting mechanism defining certain portions of the circumference of the band. The contracting mechanism may comprise plural fluid-receiving cells linked together along the circumference of the band. The width of each of the fluid-receiving cells becomes smaller as each cell is filled with a fluid. This causes the contraction of the band and a resulting shortening of the circumference of the band.

A mechanical chest compression device is secured to a gurney, transport stretcher or ambulance cot while engaging a patient's thorax to provide mechanical CPR during transport. The mechanical chest compression device compresses the patient's thorax against the gurney deck. The mechanical chest compression device may engage the side rails on the gurney, the gurney deck or any suitable structural elements of the gurney.

A shaking device includes at least one pad, a mover configured to reciprocally move the pad, and a mount configured to support the mover. The shaking device may be connected with a medical device using a feedback system. The shaking device may be configured to change settings based on readings from the feedback system.

The sequential compression device for treatment and prophylaxis of deep vein thromboses includes a compression sock having a plurality of electromechanical units positioned along the calf muscle of a user's leg. Each of the electromechanical units includes a front housing component and a back housing component. The front housing component of the unit includes a compressor piston positioned in communicating relation with the user's calf muscle and the back housing component of the unit includes a magnet and a copper coil. The magnet is positioned in communicating relation with the compressor piston of the front housing component. Upon activation, the compressor piston selectively compresses the small saphenous vein to simulate the effect of the calf muscle during walking and promote the flow of blood back to the user's heart.

In some embodiments, a system may include an inner wearable harness worn, during use, on a torso of a subject. The system may include a plurality of engines which when activated apply an oscillation force. The system may include a positioning system which allows positioning at least one of the plurality of engines on the inner wearable system such that the oscillation force is applied to at least one treatment area of the subject. The oscillation force may mobilize, during use, at least some secretions in an airway within the subject substantially adjacent the treatment area. The system may include an outer harness worn, during use, on a torso of a subject. The outer wearable harness, when activated, adjusts the oscillation force applied by at least some of the activated plurality of engines to the treatment area.