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Publication Number
US-11268686-B2
Publication Date
2022-03-08
Expiration Date
Abstract
A head wearable device includes a headpiece, a housing attached to the headpiece, a luminaire attached to the headpiece, the luminaire including a luminaire housing and at least one light source located within the luminaire housing, a duct system connecting the luminaire to the housing, a ball joint rotatably connecting the duct system to the luminaire, and an air moving device configured to induce a cooling air flow through an inlet in the luminaire housing, through the heatsink, through the ball joint, through the duct system, and out of an exhaust in the housing attached to of the headpiece.
Core Innovation
The invention relates to a head-worn LED surgical headlight system having a head wearable device with a headband and a padding system. The disclosed headlight device includes a headband that encircles the head of a wearer and includes a rear portion, side portion, and top portion with an inner surface. A rear pad and a brow pad are attached to inner surfaces of the headband at defined locations on the wearer’s head, including the brow pad positioned at an intersection of the top portion and the side portion.
At least one of the rear pad and the brow pad comprises first and second layers of cushioning materials having different durometers. At least one of the first layer and the second layer is perforated, with the patent describing first perforation pattern and/or second perforation pattern. The perforation patterns differentiate between layers, including differences in perforation shape characteristics and comparative relationships in cavity/open space volume between layers.
The rear pad includes structural features such as a recess on an inner surface, and the pad surfaces are defined with respect to wearer contact and attachment to the headband. The disclosed cushioning system is configured to improve comfort for the wearer and to reduce weight while also enhancing heat dissipation/airflow by managing air movement paths and airflow through the ducted airflow path described for the luminaire system.
Claims Coverage
The independent claims cover a headlight device with a headband and a multi-layer padding system using different durometers and, in at least one layer, perforation patterns. Across the independent claims, the inventive features focus on multi-layer cushioning structure with different durometers, perforation patterning by layer, and specific pad placement and geometry constraints, including brow-pad positioning, a rear-pad recess, and a suture-related positioning constraint.
Multi-layer cushioning with different durometers on at least one pad
At least one of the rear pad and the brow pad comprises a first layer of a first cushioning material having a first durometer, and a second layer of a second cushioning material having a second durometer that is different from the first durometer.
Brow pad attached at the intersection of the top and side portions
A brow pad is attached to the inner surface of the headband about an intersection of the top portion and the side portion, at a front of the headband at a position such that the brow pad is configured to be against a forehead of a wearer of the headlight device.
Perforation patterning in one or more cushioning layers
The first layer is perforated in a first perforation pattern and/or the second layer is perforated in a second perforation pattern.
Perforation shape distinction between layers (majority circular vs non-circular)
A majority of the perforations in the first layer are generally circular, while a majority in the second layer are in a shape other than circular.
Perforations in a second layer with square or rectangular grid-like arrangement
The headlight device is configured so perforations in the other layer are generally square or rectangular and/or arranged in a grid-like pattern.
Comparative cavity or open space volume created by perforations between layers
The total volume of cavity due to perforations in the second layer is higher than the total volume of cavity in the first layer.
Rear pad recess on the inner surface
The rear pad comprises a recess on an inner surface thereof.
Rear pad with inner surface contacting the wearer and outer surface attached to the headband
The first layer comprises an inner surface configured to contact the head of the wearer; and the second layer comprises an outer surface attached to the inner surface of the rear portion of the headband.
Pad placement relative to a skull suture
The pad is configured to be positioned on the wearer’s head without being disposed over a suture of a skull of the wearer.
Across the independent claims, the inventive coverage centers on a headlight device having a headband with a padding system in which cushioning includes first and second layers with different durometers, and where one or both layers include perforations in specified perforation patterns. The claims further specify structural pad features such as a rear-pad recess and defined inner and outer surface relationships, and also include anatomical positioning constraints such as brow-pad placement and pad placement relative to a skull suture.
Stated Advantages
Improve comfort.
Reduce weight.
Enhance heat dissipation/airflow.
Documented Applications
Head wearable device for LED surgical headlight use, including head-worn operation with defined headband and padding features for a wearer.
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