Surgery – Truss – Pad
Patent
1979-10-17
1982-07-20
Cohen, Lee S.
Surgery
Truss
Pad
33174D, 433 72, A61B 510
Patent
active
043400698
ABSTRACT:
The object of the invention is to provide a pressure responsive probe and method of use for manually applying a predetermined probing force to an object such as the floor of a periodontal pocket, for example.
The probe has a magnetizable member 28, and a movable lever 14 having a probe tip 18 at one end. The lever 14 and member 28 have cooperating surfaces 24, 30 respectively. The member 28 is magnetized for holding lever 14 in a normally "engaged" position in which the surfaces 24, 30 are held engaged with a preset magnetic force. When a predetermined probing force manually applied to the floor of a periodontal pocket through probe tip 18 overcomes the preset magnetic force, the lever 14 is moved to a "disengaged" position in which the surfaces 24, 30 are disengaged. The depth of the pocket can be observed on a scale on the probe tip at the predetermined probing force.
REFERENCES:
patent: 3782188 (1974-01-01), Korber et al.
patent: 3943913 (1976-03-01), Johnson
patent: 3943914 (1976-03-01), Grenfell et al.
patent: 4058115 (1977-11-01), Forster
Gabathuler et al., "A Pressure Sensitive Peridontal Probe," Helv. Odont Acta, vol. 15, pp. 114-117, Oct. 71.
Velden et al., "Intro. of a New Peridontal Probe . . . ," J. Clin. Peridon, 1978:5, 188-197.
Vitel et al., "Development of a Force Controlled . . . Instr.," J. Periodontal Res, 14: 93-94, 1979.
Cohen Lee S.
Yeaple Corporation
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