JPWO2020170207A5

JPWO2020170207A5 -

Info

Publication number: JPWO2020170207A5
Application number: JP2021549383A
Authority: JP
Publication date: 2022-05-17
Anticipated expiration: 2040-02-21

Claims

A CPAP system for providing a patient with positive pressure gas for respiratory treatment, said CPAP system:
With an RPT device configured to supply gas flow at therapeutic pressure,
A patient interface that forms a plenum chamber that can be pressurized to therapeutic pressure, said patient interface constructed and arranged to form a seal against the patient's facial area surrounding the entrance to the patient's airway. With the patient interface, including the seal forming structure,
An air delivery conduit configured to allow gas flow at said therapeutic pressure to pass from said RPT device to said patient interface.
Includes a ventilation assembly configured to provide a ventilation gas flow for releasing the gas exhaled by the patient from the pressurized volume into the atmosphere.
The ventilation assembly is:
A secondary vent flow with at least one first orifice extending through the base so as to allow gas from the pressurized volume to be released into the atmosphere along the primary vent flow path. A base comprising at least one second orifice, such as allowing gas from a pressurized volume to be released into the atmosphere along the path.
A diffusion member provided on the base, wherein the diffusion member is such that at least one of the first orifices is covered by the diffusion member along the primary ventilation flow path and at least one of the second. And the diffusion member, the orifice of which is configured and arranged so as not to be covered by the diffusion member along the secondary ventilation flow path.
A ventilation component provided in at least one of the second orifices of the base, wherein the ventilation component comprises a ventilation component comprising a plurality of ventilation orifices.
Including
The ventilation component comprises an expanded polymer material structured and arranged to regulate the ventilation gas flow along the secondary ventilation flow path throughout the respiratory treatment, the CPAP system.

The ventilation component is configured to expand and contract due to the presence of moisture or humidity, and the expansion and contraction of the ventilation component causes expansion and contraction of the plurality of the ventilation orifices. The CPAP system according to claim 1 , wherein the CPAP system is configured to regulate the flow along the next ventilation flow path.

The ventilation component is configured to expand when the diffusion member is blocked along the primary ventilation flow path, whereby the ventilation gas flow is restricted to the secondary ventilation flow path, claim. The CPAP system according to any one of 1 and 2 .

The CPAP according to claim 3 , wherein the secondary ventilation flow path bypasses the diffusion member and allows the ventilation gas flow to enter when the diffusion member is blocked due to moisture or humidity. system.

The CPAP system according to any one of claims 1 to 4 , wherein the diffusion member includes a woven material.

A CPAP system for providing a patient with positive pressure gas for respiratory treatment, said CPAP system:
With an RPT device configured to supply gas flow at therapeutic pressure,
A patient interface that forms a plenum chamber that can be pressurized to therapeutic pressure, said patient interface constructed and arranged to form a seal against the patient's facial area surrounding the entrance to the patient's airway. With the patient interface, including the seal forming structure,
An air delivery conduit configured to allow gas flow at said therapeutic pressure to pass from said RPT device to said patient interface.
An aeration assembly configured to provide an aerated gas flow for releasing the gas exhaled by the patient from the pressurized volume into the atmosphere.
Including
The ventilation assembly is:
A venting member comprising a woven material, wherein the venting member comprises a venting member comprising a plurality of vents that allow outgassing from the pressurized volume to the atmosphere.
A diffusion member comprising a woven material, wherein the diffusion member is configured and arranged such that a plurality of the vent holes are covered by the diffusion member.
A support structure that supports the diffusion member at a distance from the ventilation member,
Including
The support structure includes an opening that allows gas release along the primary airflow channel and a side opening that allows gas release along the secondary airflow channel, and the diffusion member is the opening. Is supported by the support structure so that it is covered by the diffusion member, whereby the ventilation flow is allowed to pass through the diffusion member along the primary ventilation flow path and the lateral opening is not covered by the diffusion member. A CPAP system that bypasses the diffusion member along the secondary ventilation flow path so that the ventilation flow is bypassed.

The CPAP system of claim 6 , wherein the ventilation assembly is provided in the patient interface.

One of claims 6 to 7 , wherein the secondary ventilation flow path allows the ventilation gas flow to bypass the diffusion member when the diffusion member is blocked due to moisture or humidity. The CPAP system described in paragraph 1.

The CPAP system of claim 1, wherein the ventilation assembly is provided in the patient interface.

The CPAP system of claim 1, wherein the ventilation assembly is provided in the air delivery conduit.

The ventilation component includes a groove around the ventilation component, which is adapted to place the ventilation component on the edge or rim of at least one of the second orifices of the base. The CPAP system according to claim 1.

The CPAP system of claim 1, wherein the ventilation component is configured to contract such that when dry, the ventilation gas flow is restricted to the primary ventilation flow path.

The ventilation component gradually expands and contracts due to the wetness of the ventilation component and thus the wetness of the diffusion member, whereby the ventilation gas between the primary ventilation flow path and the secondary ventilation flow path. The CPAP system of claim 1, wherein the flow is configured and arranged to be divided or distributed throughout the respiratory treatment.

The CPAP system of claim 1, wherein the diffusing member comprises one or more coatings to retain moisture.

The diffusing member comprises a hydrophobic coating provided on the patient side of the diffusing member to trap moisture and / or a hydrophilic coating provided on the atmosphere side of the diffusing member to stop the movement of moisture. 14. The CPAP system according to 14.

The CPAP system of claim 6, wherein the ventilation assembly is provided in the air delivery conduit.

The support structure includes a wall forming the opening and a plurality of support members protruding from the wall, and the plurality of support members have the wall and the diffusion member on the wall as the ventilation member. The CPAP system according to claim 6, which is supported at intervals from.

17. The CPAP system of claim 17, wherein the support members form at least a portion of the lateral opening along the perimeter of the ventilation assembly.

17. The CPAP system of claim 17, further comprising a base, wherein the venting member is sandwiched between the base and the support member.

The CPAP system of claim 6, wherein the diffusion member forms a cover or exterior of the ventilation assembly.

The CPAP system of claim 6, wherein the diffusing member comprises one or more coatings to retain moisture.

The diffusion member comprises a hydrophobic coating provided on the patient side of the diffusion member to trap moisture and / or a hydrophilic coating provided on the atmosphere side of the diffusion member to stop the movement of moisture. 21. The CPAP system.