Surgery – Truss – Pad
Patent
1983-09-15
1985-07-23
Coven, Edward M.
Surgery
Truss
Pad
33124, A61B 510
Patent
active
045303673
ABSTRACT:
Apparatus for measuring a volume change for facial swelling of a person which may occur after surgical removal of wisdom teeth, including a bite fork engageable within the mouth of the person for providing a relatively fixed reference position for the facial swelling; a reciprocable feeler rod having a free end with a feeler wheel secured thereto and reciprocable in a first x-axis direction substantially normal to the facial swelling; a spring which biases the feeler wheel into contact with the facial swelling; a tracing device for moving the feeler wheel in a second y-axis direction substantially normal to the first direction to cause the feeler wheel to trace across the facial swelling in a plurality of parallel planes spaced apart by a predetermined distance in the z-axis direction; a first LVDT for producing a first signal in response to the reciprocable movement of the feeler wheel in the first direction; a second LVDT for producing a second signal in response to movement of the feeler wheel in the second direction; and a differential volume circuit for producing an output signal corresponding to the volume change in response to the first signal, the second signal and the predetermined distance.
REFERENCES:
patent: 3061936 (1962-11-01), Dobbeleer
patent: 3154673 (1964-10-01), Edwards
patent: 3256523 (1966-06-01), Pietro
patent: 3624684 (1971-11-01), McCuslin
patent: 3652842 (1972-03-01), Lewis
patent: 3722103 (1973-03-01), Gregoire
patent: 3885318 (1975-05-01), Whitehouse et al.
patent: 3955073 (1976-05-01), Carew et al.
patent: 4135498 (1979-01-01), McGee
patent: 4328620 (1982-05-01), Mack et al.
patent: 4383535 (1983-05-01), Schorr
patent: 4459109 (1984-07-01), Radke
Lokken, P. et al., "Bilateral Surgical Removal of Impacted Lower Third Molar Teeth as a Model for Drug Evaluation: A Test with Ibuprefen", Europ. J. Clin. Pharmacol., 8, 209-216, (1975), pp. 209-216.
Dixon, D. A., "Minimal Forms of the Cleft Syndrome Demonstrated by Stereophotogrammetric Surveys of the Face", Brit. Dent. J., Mar. 7, 1972, pp. 183-189.
Linenberg, W. B., "The Clinical Evaluation of Dexamethasone in Oral Surgery", Oral Surgery, Oral Medicine and Oral Pathology, vol. 20, No. 1, Jul. 1965, pp. 6-28.
Sowray, J. H., "An Assessment of the Value of Lyophilised Chymotrypsin in the Reduction of Post-Operative Swelling Following the Removal of Impacted Wisdom Teeth", Brit. Dent. J., Feb. 21, 1961, pp. 130-133.
Cameron, I. W., "An Investigation Into Some of the Factors Concerned in the Surgical Removal of the Impacted Lower Wisdom Tooth, Including a Double Blind Trial of Chymoral", Brit. J. of Oral Surgery, (1980), 18:112-124, pp. 112-124.
Desjardins Paul J.
Menon Sathischandran
Milles Maano
Pawel Hans E.
Bobis Daniel H.
Coven Edward M.
Jackson David A.
N.J. Institute of Technology
University of Medicine and Dentistry
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