Mask seal trainer
AssigneeLaerdal Medical AS
InventorsFrode Liland, Børge Lund
Life of this patent
Estimating the term…
Abstract
A device for practicing mask ventilation, comprising a first passage and a second passage. The first passage is designed to provide communication between a source of air and the interior of a patient mask. The patient mask is designed for placement over a person's mouth and/or nose. The second passage is designed to provide communication between the air source and a back pressure means. The back pressure means is adapted to simulate the resistance of a human airway. The device can also comprise a third passage designed to provide communication between a breathing person and the surroundings. The passages may be formed in one integrated adapter to be placed between a patient valve and the mask.
Claims18
A device for practicing mask ventilation comprising:
- a patient mask having a seal for contacting a face of a person, the mask adapted to be placed over the nose and mouth of the person, the mask having an interior and an aperture between the interior and the surroundings;
- an adaptor sized to fit within the aperture of the mask, the adaptor having
- a first passage for providing fluid communication between the mask interior and a source of air, and
- a second passage for providing fluid communication between the source of air and a back pressure device;
- wherein air flowing from the source of air through the first passage and into the mask interior contacts the seal, and is used to determine if the mask is sealed to the face of the person.
An adaptor for use with a patient mask having a seal for contacting a face of a person, the mask having an interior portion and an aperture between the interior portion and the surroundings, the adaptor for practicing mask ventilation, the adaptor comprising:
- a first passage adapted to allow air flow between an air source and a back pressure device;
- a second passage adapted to allow air flow between the first passage and an interior portion of a mask,
- a damper oriented in the second passage for controlling air flow from the first passage to the second passage;
- and
- a third passage adapted to allow air flow between a mouth of a person wearing the mask and the surroundings, thereby allowing the person to breathe.
Dependencies are inferred from the claim text.