Abstract:
An improved connector (32) having limited durability for a disposable chest compression vest (12) is quiet and cost effective. Among other advantages, the connector (32) is heat sterilizable and flat so that the vest (12) can be efficiently packaged and stacked, which is particularly beneficial for use in a hospital.
Abstract:
A vest (11) for a human body (14) has an air core (36) coupled to a pulsator (12) operable to subject the vest (11) to pulses of air which applies and releases high frequency pressure forces to the body (14). The pulsator (12) has two diaphragms (89, 91) connected to a brushless electric dc motor (118) with rotary to reciprocating linear motion transmitting mechanisms (116, 117) comprising scotch yokes having anti-lash assemblies (200, 218) operable to generate air pulses in an air pulsing chamber (87). The diaphragms (89, 91) also increase the pressure in a manifold chamber (88). A check valve (99) connects the manifold chamber (88) with the pulsing chamber (87) to allow pressurized air to flow from the manifold chamber (88) into the pulsing chamber (87). An air flow control valve (167) in communication with the manifold chamber (88) is used to adjust the pressure of the air in the manifold (88) and pulsing chambers (87). A programmable motor controller (165) adjusts the duration of operation and speed of the motor (118) to vary the operational time and frequency of the air pulses.
Abstract:
An improved air pulse generator has reduced noise and vibration forces, an improved user interface, reduced size and weight, sweeping oscillating frequency, an electronic flywheel, an improved air pulse module, and internal heat dissipation. The improved air pulse generator also provides prescribed treatment protocols for carrying out high frequency chest wall oscillations.
Abstract:
A vest for a human body with an air core coupled to a pulsator operable to subject the vest to pulses of air, which applies and releases high frequency pressure forces to the body. The pulsator has two diaphragms connected to a brushless electric dc motor with rotary to reciprocating linear motion transmitting mechanisms comprising scotch yokes having anti-lash assemblies operable to generate air pulses in an air pulsing chamber. A check valve connects the manifold chamber with the pulsing chamber to allow pressurized air to flow from the manifold chamber into the pulsing chamber. An airflow control valve in communication with the manifold chamber is used to adjust the pressure of the air in the manifold and pulsing chambers. A programmable motor controller adjusts the duration of operation and speed of the motor to vary the operational time and frequency of the air pulses.
Abstract:
An improved connector (32) having limited durability for a disposable chest compression vest (12) is quiet and cost effective. Among other advantages, the connector (32) is heat sterilizable and flat so that the vest (12) can be efficiently packaged and stacked, which is particularly beneficial for use in a hospital.
Abstract:
An improved air pulse generator has reduced noise and vibration forces, an improved user interface, reduced size and weight, sweeping oscillating frequency, an electronic flywheel, an improved air pulse module, and internal heat dissipation. The improved air pulse generator also provides prescribed treatment protocols for carrying out high frequency chest wall oscillations.