Powered high speed rotary surgical handpiece chuck and tools

Details Powered high speed rotary surgical handpiece chuck and tools Powered high speed rotary surgical handpiece chuck and tools

1996-10-30

1998-04-07

Dawson, Glenn K.

Chucks or sockets

By centrifugal force

To grip tool or workpiece

606180, B23B 522, A61B 1714

Patent

active

057355355

ABSTRACT:
A replaceable rotary patient tissue working tool and a high speed rotational surgical handpiece having a centrifugal chuck for axial push-in chucking and pull-centrifugal locking member having a mass portion located on one side of a rotational axis of a drive shaft. The centrifugal locking member is pivoted on an axis transverse to the drive shaft axis and has a leg extending past said rotational axis. The leg has tool gripping structure on the opposite side of such rotational axis for receiving a tool rear shank rearward axially therepast and for more strongly radially gripping such a tool shank in response to faster rotation of the drive shaft. The invention, in another aspect, includes a tool having an elongate shank, patient tissue working structure at a front end of the shank and mounting structure at the rear end of the shank. The mounting structure includes a radially depressed plateau engageable by such centrifugal locking member.

REFERENCES:
patent: 3564948 (1971-02-01), Pomernacki
patent: 5167476 (1992-12-01), Lafferty, et al.
patent: 5403134 (1995-04-01), Andersson, et al.
patent: 5601560 (1997-02-01), Del Rio et al.
Photocopy of a cross sectional view of a prior high speed rotational surgical handpiece including a chuck of the kind used with below discussed p. 14, Figures 20 tool shank A.
Photocopy of brochure No. 1000-133 REV 7/94 entitled Command 2 Oral and maxillofacial, pp. 1-4.
"Command2 MicroElectric System" Maintenance Manual & Operating Instructions: Photocopy of p. 14, Figures 19 and 20 show prior art (on sale more than 1 year prior to filing date of present application) shanks A, B and C.
Sketch A (shank A pictorial view).

Affiliated with

Also associated with

Rating

Powered high speed rotary surgical handpiece chuck and tools does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Powered high speed rotary surgical handpiece chuck and tools, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Powered high speed rotary surgical handpiece chuck and tools will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-6639