Tube headgear for patient interface

FIG. 1 is a front perspective view of a tube headgear for patient interface showing a first embodiment of our new design;

FIG. 2 is another perspective view thereof, without the model patient's head;

FIG. 3 is an enlarged perspective view thereof shown in isolation;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a left side elevation view thereof;

FIG. 9 is a right side elevation view thereof;

FIG. 10 is a front perspective view of a tube headgear for patient interface showing a second embodiment of our new design;

FIG. 11 is another perspective view thereof, without the model patient's head;

FIG. 12 is an enlarged perspective view thereof shown in isolation;

FIG. 13 is a front elevation view thereof;

FIG. 14 is a rear elevation view thereof;

FIG. 15 is a top plan view thereof;

FIG. 16 is a bottom plan view thereof;

FIG. 17 is a left side elevation view thereof; and,

FIG. 18 is a right side elevation view thereof.

The broken lines illustrative of a human head in FIGS. 1 and 10 are environmental structure and form no part of the claimed design. All other broken lines show a portion of the tube headgear for patient interface and form no part of the claimed design.

The combination of line shading (e.g., plastic shell, clip, connectors, textile headgear and stippling (elastomeric cushion /headgear tube) is intended to convey a contrast in appearance/materials.