US 12,514,999 B2 · Foot pedal unit for airway mask

Abstract

The invention belongs to the field of medical sciences and respiratory masks. It is a cardiopulmonary resuscitation device that delivers assisted ventilation via a foot- or compressor-controlled bellows mechanism. This device frees the use of the hand used to compress the conventional self-inflating Airway Mask Bag Unit (AMBU), so that the free hand can be used to fit the mask over the patient's face and reduce the mechanical fatigue generated by the manual compression of current mechanisms. The unit attaches to ventilation masks, can have a frequency meter and is compatible with accessories comprising conventional cardiopulmonary resuscitation devices; inside it has a valve that controls the filling of the oxygen reservoir and the time at which oxygen is released to be supplied to the patient.

Claims20

Dependent claims

A foot-operated insufflation unit for an airway mask, comprising:

a valve mechanism (3) having a section (3c) configured to be coupled to a pedal tube (5), a reservoir coupling (4a) configured to couple a reservoir (4) to said valve mechanism (3), and a hollow damper (3a) including a valve (3d), wherein a stream of air flowing from said pedal tube (5) into said valve mechanism (3) causes said hollow damper (3a) to move allowing passage of an air mixture of said stream of air and oxygen from the reservoir (4) into an airway mask (1) while said valve (3d) blocks entry of ambient air into said pedal tube (5);
and an absence of the stream of air flowing from said pedal tube (5) causes said hollow damper (3a) to remain static blocking passage of said air mixture into the airway mask (1) while said valve (3d) allows passage of said ambient air into the pedal tube (5).

Dependencies are inferred from the claim text.

Foot pedal unit for airway mask

Life of this patent

Foot pedal unit for airway mask

Life of this patent

Abstract

Claims20