Proning face pack
A face support pack for controlling moisture and friction induced skin breakdown that includes a moisture vapor removal layer.
1. A proning face pack comprising:
a moisture vapor removal layer configured for maximizing interface with the forehead and checks of a patient face, the moisture vapor removal layer configured to transmit moisture away from the patient face in the vapor phase while being impermeable to air and liquid phase water, the moisture vapor removal layer further shaped to conform to the outer dimensions of a patient's face, the moisture vapor removal layer further shaped to contour the patient's forehead and cheeks so as to form one or more openings for the eyes, mouth and nose of a patient's face;
an air mover pneumatically coupled to the moisture vapor removal layer to move air through the moisture vapor removal layer;
a support layer disposed adjacent the moisture vapor removal layer.
2. The head pack of claim 1 further comprising an air mover pneumatically coupled to the moisture vapor removal layer to push air into the moisture vapor removal layer; the support layer being pneumatically coupled to the moisture vapor removal layer so as to receive air from the moisture vapor removal layer, the support layer further comprising a vent disposed so as to pass air from the support layer to atmosphere.
3. The head pack of claim 2 , the support layer further comprising a pressure relief valve coupled to the vent, the pressure relief valve configured to open at a set pressure point.
4. The head pack of claim 3 , the pressure relief valve configured to permit air flow at a rate approximately equal to or lesser than a flow rate supplied by the air mover.
5. The head pack of claim 1 , the moisture vapor removal layer being sealed along its perimeter to the support layer, the moisture vapor removal layer being separated from the support layer by an air impermeable boundary layer.
6. The head pack of claim 1 , the support layer including a reforming foam, the support layer comprising a valve disposed so as to allow air flow into the support layer from atmosphere, the valve configured to open when the support layer is not supporting a patient face.
7. The head pack of claim 6 , the moisture vapor removal layer comprising a vent disposed so as to vent moisture vapor to atmosphere.
8. The head pack of claim 6 , the support layer further comprising a pressure relief valve configured to release air from the support layer at a predetermined pressure set point.
9. A proning face pack comprising:
a moisture vapor removal layer configured for maximizing interface with the forehead and cheeks of the face patient's face, the moisture vapor removal layer configured to transmit moisture away from the patient's face as vapor while being impermeable to air and liquid phase water, the moisture vapor removal layer being shaped to conform to the outer dimensions of a patient's face, the moisture vapor removal layer further shaped to contour the patient's forehead and cheeks so as to form one or more openings for the eyes, mouth and nose of a patient's face and further configured to receive fluid pressure from a fluid pressure source so as to provide support to the patient when using the face pack;
a vent disposed so as to vent moisture vapor from the moisture vapor removal layer to atmosphere; and
a valve configured to pulse open so as to provide cyclical variation of pressure within the moisture vapor removal layer.
10. The head pack of claim 9 wherein said cyclical variation of pressure includes opening the valve at a frequency or for a period of time so as to maintain a suitable level of moisture vapor within the MVTR layer to encourage removal of moisture from the patient.
11. The head pack of claim 9 wherein said cyclical variation of pressure includes opening the valve at a frequency or for a period of time so that an air pressure in the moisture vapor removal layer does not decrease below a threshold level.
12. The head pack of claim 9 further comprising a support layer, including a material to help support the patient even if pressure is lost from the head pack.
13. The head pack of claim 9 further comprising a support layer, one or more openings made in the moisture vapor removal layer so as to allow moisture vapor to enter into said support layer.
14. The head pack of claim 9 , said moisture vapor removal layer comprising:
a facial interface layer configured to interface with the patient's face, the facial interface layer being liquid vapor permeable but liquid and air impermeable;
a boundary layer being air impermeable; and
a spacer layer disposed between the interface layer and the boundary layer, the spacer layer configured to allow air flow therethrough.