Surgery – Means for introducing or removing material from body for... – With means for cutting – scarifying – or vibrating tissue
Patent
1989-04-25
1989-12-05
Thaler, Michael H.
Surgery
Means for introducing or removing material from body for...
With means for cutting, scarifying, or vibrating tissue
128305, 30317, A61B 1732
Patent
active
048850047
ABSTRACT:
Novel surgical instruments for cutting soft tissues, and the like, are provided. The instruments include an elongated shaft having a cutting member rotatably mounted to the shaft and disposed to slide against a substantially planar surface of the shaft. The stylus and planar surfaces are disposed to provide smooth rotating action to the cutting instrument during such surgical procedures as cataract operations. The instruments also preferably include cutting blades having blade faces forming acute angles of less than 50.degree., for providing sharp cutting surfaces even when the instruments are tilted by a surgeon while accessing tight surgical areas.
REFERENCES:
patent: 3922784 (1975-12-01), Prince et al.
patent: 4301802 (1981-11-01), Poler
patent: 4574802 (1986-03-01), Straub et al.
patent: 4763651 (1988-08-01), Kaufman et al.
Janet C. Witzleben; "Describe New Method, Surgical Knife for Anterior Capsulotomy"; Ophthalmology Times; vol. 9, No. 18, 9/15/84.
Frederick H. Daviddorf, Donald A. Keller; "Atlas of Eye Surgery and Related Anatomy"; Keller Publishing Co.; pp. 29-34 and 147-166 (1978).
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