Resuscitation bag with monitoring capabilities
Inventors
BOULANGER, Thierry • GINER, Jean-Marc • Richard, Jean-Christophe • RIGOLLOT, Marceau
Assignees
Air Liquide Sante International SA • Air Liquide Medical Systems SA
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Publication Number
US-10974003-B2
Publication Date
2021-04-13
Expiration Date
Abstract
The specification describes an artificial resuscitation bag (5) having (i) a deformable bag (54) with a gas inlet (54A) and a gas outlet (54B), (ii) a pneumatic control valve (50) comprising an exhaust port (50c) adapted for controlling the flow of gas exiting to the atmosphere through said exhaust port (50c), and (iii) a monitoring module (60), operably connected to the pneumatic control valve (50) and having an absolute pressure sensor (60d) for measuring at least an absolute pressure (Pabs) in the inner compartment (50f) of the pneumatic control valve (50) and for transmitting at least an absolute pressure signal to a central processing unit (60c) and an ambient pressure sensor (60b) for measuring at least an atmospheric pressure (Patm) and for transmitting at least an atmospheric pressure signal to the central processing unit (60c).
Core Innovation
The invention relates to an artificial resuscitation bag system with a pneumatic control valve having an exhaust port adapted to control gas exiting to the atmosphere. The system includes a deformable bag having a gas inlet and a gas outlet, and a gas conduit in fluid communication with the gas outlet. A first one-way valve is arranged in the gas conduit, and a derivation conduct connects the gas conduit to an inner compartment of the pneumatic control valve.
A monitoring module is operably connected to the pneumatic control valve. The monitoring module includes an absolute pressure sensor for measuring at least an absolute pressure in the inner compartment and transmitting an absolute pressure signal to a central processing unit. The monitoring module also includes an ambient pressure sensor for measuring at least an atmospheric pressure and transmitting an atmospheric pressure signal to the central processing unit.
The central processing unit is specifically programmed and adapted for processing the absolute pressure signal and the atmospheric pressure signal received from the sensors. The central processing unit determines at least a relative pressure in the inner compartment. In further embodiments described, the system can detect pressure oscillations in relative pressure to determine thoracic compression rate, and can present computed data via a local display or wireless communication.
Claims Coverage
The independent claims coverage centers on an artificial resuscitation bag with a pneumatic control valve and a monitoring module that derives relative pressure from absolute and atmospheric pressure measurements, totaling 1 independent inventive claim set.
Artificial resuscitation bag with pneumatic control valve and derivation conduct
The system includes a deformable bag with a gas inlet and a gas outlet, a gas conduit in fluid communication with the gas outlet, and a pneumatic control valve having an exhaust port adapted for controlling gas flow exiting to the atmosphere. The pneumatic control valve includes an inner compartment, and a first one-way valve is arranged in the gas conduit between the deformable bag and the pneumatic control valve. A derivation conduct connects the gas conduit to the inner compartment of the pneumatic control valve.
Monitoring module with absolute and ambient pressure sensors for relative pressure
A monitoring module is operably connected to the pneumatic control valve and comprises an absolute pressure sensor measuring at least an absolute pressure in the pneumatic control valve inner compartment and transmitting an absolute pressure signal. The monitoring module further comprises an ambient pressure sensor measuring at least an atmospheric pressure and transmitting an atmospheric pressure signal. A central processing unit processes the absolute pressure signal and the atmospheric pressure signal and determines at least a relative pressure in the inner compartment.
Overall, the claim coverage is directed to the combination of a pneumatic control valve with an inner compartment connected via a derivation conduct and one-way valve arrangement, and a monitoring module that measures absolute and atmospheric pressure and computes relative pressure for the valve inner compartment.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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