Mouth gag
A technology of mouth gag and support seat, which is applied in dilators, surgery, etc., can solve problems such as easy scratches on users and patients, loss of rescue opportunities for patients, and impact on first aid efficiency, so as to reduce the chance of accidentally injuring the patient's mouth and reduce sequelae , the effect of increasing the contact area
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[0021] Such as Figure 1~Figure 4 As shown, the present embodiment includes a support base 3 and a tapered screw rod 2 that runs through the support base 3 and is screwed with it. L-shaped support arms 4 are hinged at both ends of the support base 3, and one end of the screw rod 2 is fixed with a rotating Head 1, the other end of the screw rod 2 is placed between two L-shaped support arms 4, and the two sides of the L-shaped support arm 4 away from the screw rod 2 are provided with protrusions 8, on the upper side of the L-shaped support arm 4 A protective sleeve 5 matched with it is sleeved, and two opposite curling edges 10 are fixed on the inner wall of the protective sheath 5, and there is a gap 11 between the movable ends of the two curling edges 10. Limit bar 9 is installed on the L-shaped support arm 4, and when L-shaped support arm 4 is placed in protective cover 5, limit bar 9 passes gap 11 and two curling 9 clearance fits; Also includes and L-shaped support A nut 7 ...
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