Chuck with a push button release for a dental/medical device

Details Chuck with a push button release for a dental/medical device Chuck with a push button release for a dental/medical device

1996-05-16

1998-01-06

Wilson, John J.

Dentistry

Apparatus

Having motor or means to transmit motion from motor to tool

279 76, A61C 114

Patent

active

057047863

ABSTRACT:
A medical/dental device is provided which includes a body having a hollow sleeve and a head at an end of the sleeve. The head defines an upwardly opening chamber which receives a chuck. The chuck includes a bur tube which removably receives a medical/dental tool of the latch-shaft type and a push button actuator to release the shaft from the bur tube. The bur tube includes a flexible arm which extends above the bur tube's upper surface and has an inwardly extending finger positioned to engage the groove of the shaft. The push button includes a downwardly extending pedestal which engages the arm to move the arm from a first position in which the groove and the finger create an interference fit to prevent the shaft from being removed from the head to a second position in which the finger is disengaged from the groove to allow removal of the shaft.

REFERENCES:
patent: 3413578 (1968-11-01), Dennison
patent: 4014099 (1977-03-01), Bailey
patent: 4370132 (1983-01-01), Wohlgemuth
patent: 4398886 (1983-08-01), Schuss et al.
patent: 4661062 (1987-04-01), Seigneurin
patent: 4975056 (1990-12-01), Eibofner
patent: 5028181 (1991-07-01), Jenkins et al.
patent: 5037299 (1991-08-01), Nakanishi
patent: 5090906 (1992-02-01), Pernot

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