| 摘要 |
A one-piece equine dental speculum having an open frame. Bite plates are affixed at the front of the speculum to engage the incisors when the speculum is fully inserted. Two V-shaped projections extending rearward from each end of the bite plates act as wedges to engage the incisors and force them towards the upper and lower bite plates, forcing the jaws apart. Simply, insertion requires placing the speculum frame around the horse's mouth, placing the V-shaped projections between the upper and lower incisors and pushing. Once fully inserted, the incisors are held in place at the bite plates preventing the jaws from closing. The projections are narrowly spaced to further prevent the user from inserting their hands into the opened horse's mouth, lowering the risk of injury to the user.
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