Mouth gag with universal adjustability to the alveolar arch

Details Mouth gag with universal adjustability to the alveolar arch Mouth gag with universal adjustability to the alveolar arch

1977-02-28

1979-05-01

Truluck, Dalton L.

Surgery

Truss

Perineal

128 20, A61B 124

Patent

active

041518373

ABSTRACT:
A support post of each alveolar retractor, which is adjustably supported in a clamp means terminating each opposite end of a transverse inferior bar of a surgical mouth gag for both axial rotational and sliding movement, has a superior arcuate bar which at its medial end terminates in an upper jaw engaging member and is mounted in the upper end of said post for lateral-medial sliding adjustment to provide increased surgical exposure. Several modifications of the superior arcuate bar provide pivoting of the upper jaw engaging member to insure an optimum fit. Additional modifications of the transverse inferior bar provide mandibular engaging members which coact with the upper jaw engaging members to mount the mouth gag in operative position independently of the tongue retractor, the latter being removably mountable from the front of the transverse inferior bar without disturbing the position of the mouth gag. Curved tooth-contacting portions of the upper jaw and mandibular engaging members have double bevels to provide non-slip engagement between the teeth.

REFERENCES:
patent: 404652 (1889-06-01), Palmer
patent: 853031 (1907-05-01), Prentis
patent: 1319904 (1919-10-01), Roberts
patent: 1374984 (1921-05-01), Cameron
patent: 1388421 (1921-08-01), Forgrave
patent: 2182390 (1939-12-01), Reardon
patent: 2947305 (1960-08-01), Storz
patent: 4024859 (1977-05-01), Slepyan et al.
V. Mueller Catalogue, 1938, p. 119.

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