| 摘要 |
A headband having a low stretch segment sized to fit around a wearer's head, and an elastic segment being smaller than the low stretch segment, and havin g a free end and an attached end, where the elastic segment is attached at its attached end with the low stretch segment. The headband also includes a tab portion having a first end and a second end, the first end of the tab portio n being connected with the free end of the elastic portion, the second end of the tab portion configured to form a closed loop with the low stretch segmen t, around the wearer's head. The headband also includes visual indicator configured for monitoring the extended position of elastic segment and optionally a stop portion that is configured to engage against the elastic segment to limit its stretch. When having a stop portion, the tab portion al so includes an indicator portion between its first end and the stop portion suc h that the indicator portion when visible indicates that the headband needs re - tightening; and when the indicator portion is not visible it indicates an adequate level of tension corresponding with delivering a pressure in the range higher than the venous pressure and lower than the capillary pressure to the forehead of the wearer.
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