A mechanical device without adjustable parts intended to be placed between the teeth of the upper and lower jaws of a patient to maintain an open oral cavity, typically during emergent placement of an artificial airway or for an oral surgical intervention. It is designed to be inserted between the teeth to force the jaws apart and may be in the form of a wedge block, wedge screw, or sprung wedge. Depending on the design it may also be referred to as a jaw spreader, oral wood screw, or mouth prop. This is a reusable device.
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