Surgery – Instruments – Orthopedic instrumentation
Patent
1990-02-02
1992-06-16
Pellegrino, Stephen C.
Surgery
Instruments
Orthopedic instrumentation
606 79, 606167, 606170, 606180, 407 30, 407 58, 407 59, 407 60, 408 48, A61B 1900
Patent
active
051221349
ABSTRACT:
The cutting head for a surgical reamer has a leading end for insertion into a bone canal and a trailing end for attachment to a drive shaft. The cutting head has a cutting surface formed about an axis of rotation of the cutting head. The cutting surface is formed by the rotation of the cutting edges on a plurality of flutes spaced around the axis of rotation. Each cutting edge has a first portion spaced a predetermined radial distance from the axis of rotation at the tip portion and terminates at a terminating point which is at a greater radial distance from the axis of rotation than the starting point. The cutting edge on each flute has a second portion having a starting point at the trailing end of the cutting head which is at a second predetermined radial distance from the axis of rotation. The second portion extends axially towards the tip portion and terminates at a point at a greater radial distance from the axis of rotation than the starting point thereof. A third curved portion starts at the terminating point of the first portion and terminates at the terminating point of the second portion and intersects the first and second portions tangentially.
REFERENCES:
patent: 533573 (1895-02-01), Wilkens
patent: 930477 (1909-08-01), Hudson
patent: 3495483 (1970-02-01), Janik
patent: 3554192 (1971-01-01), Isberner
patent: 4273117 (1981-06-01), Neuhauser
patent: 4538989 (1985-09-01), Apairo et al.
patent: 4541423 (1985-09-01), Barber
patent: 4586497 (1986-05-01), Dapra et al.
patent: 4594034 (1986-06-01), Maier
patent: 4706659 (1987-11-01), Matthews et al.
patent: 4751992 (1988-06-01), DiPiesopolo
patent: 4951690 (1990-08-01), Baker
William H. Huelson, M. D., "A New Method of Performing Operations on the Skull"Feb. 1910.
Richards Manufacturing Co. Inc. Orthopedic Catalog No. 15, 1974, p. 50.
Stryker Intl; Catalog dated Jun. 1979 entitled "SurgiPower.RTM.-the world's most complete line of powered surgical instruments".
Larry S. Matthews, M. D. & Steven A. Goldstein, Ph.D., "A New Intramedullary Reamer Design" Scientific Exhibit presented at the 51st Annual Meeting of American Academy of Orthopedic Surgeons, Atlanta, GA Feb. 9-14, 1984.
Borzone Rocco R.
Gray Frank B.
Akers Lawrence C.
Augustin Raymond W.
Dawson Glenn K.
Pellegrino Stephen C.
Pfizer Hospital Products Group Inc.
LandOfFree
Surgical reamer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Surgical reamer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surgical reamer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1750872