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US 6,250,858 B1Granted
Tool driver and tools therefor
AssigneeOthy, Inc.
InventorPaul E. Salyer
Life of this patent
Estimating the term…
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AssigneeOthy, Inc.
InventorPaul E. Salyer
Estimating the term…
In the broader aspects of the invention, there is provided a new and improved tool driver having a shaft with a longitudinal axis and opposite ends and tools therefor. A boss is secured at one of said shaft ends by which the tool driver is connected to a rotary tool. A tool collate is secured at the other of the shaft ends by which the tool driver may be driven by a surgical hand piece having a chuck in which the collate may be positioned. The boss has a surface which engages the tool and positions the tool exactly coaxially of the tool driver. A latch mechanism is provided to hold the rotary tool on the boss, whereby the rotary tool is held exactly coaxially of the driver during use. The rotary tool which is used with the driver has a bottom tool driver opening which has the same dimensions as the boss of the tool driver of the invention. The boss thus fills the opening and the opening is complementary to the boss. The boss of the tool driver and the bottom tool driver opening of the tool are both positioned precisely coaxial of the axis of the tool and the longitudinal axis of the tool driver about which the cutting edges are precisely positioned and rotated.
A tool driver for connecting to a rotary tool having a back hole comprising a shaft having opposite ends and a longitudinal axis, a boss secured to said shaft at one of said ends by which said tool driver is connected to a rotary tool, a tool collet secured to said shaft at the other of said ends by which said tool driver is connected to a surgical hand piece, said boss having a distal end surface extending transversely of said axis and an exterior boss surface extending axially of said shaft, a flange between said boss and said shaft, said flange extending radially of said shaft outwardly a distance greater than said boss and having a flange surface facing in the same direction as said distal end surface, said boss being shaped and sized to be complementary to said back hole of a rotary tool, and a latch for holding said rotary tool onto said tool driver against said flange surface with said boss in said back hole thereof, whereby rotary tools of all sizes each are removably securable to said tool driver coaxially of said shaft.
A tool having a cutting surface, an open back, a mounting bar having opposite ends extending diametrically across said open back, said mounting bar having opposite ends having a centrally located device thereon coaxial with said cutting surface half-way between the opposite ends of said diametral bar, said central device having surfaces thereon for engaging tool driver surfaces to position said tool and tool driver on the same axis of rotation.
Dependencies are inferred from the claim text.