Dental handpiece

Patent metadata

Field	Value
Publication number	US-9937017-B2
Application number	US-201615062832-A
Country	US
Kind code	B2
Filing date	Mar 7, 2016
Priority date	Mar 6, 2015
Publication date	Apr 10, 2018
Grant date	Apr 10, 2018

Abstract

A dental handpiece and a dental cleaning procedure are disclosed. The dental handpiece includes an inner barrel for rotatably retaining an ultrasonic insert, the inner barrel configured for contacting the ultrasonic insert with a cooling fluid in the inner barrel, a coil unit arranged and disposed to apply an alternating magnetic field to the ultrasonic insert when positioned in the inner barrel, at least one contact retention clip that contacts a drive coil of the contact unit, an outer sheath extending around at least a portion of the coil unit. The dental handpiece includes flow regions permitting steam, chemicals, and heat to flow into the inner barrel and out of the inner barrel during a sterilization technique. The dental cleaning procedure includes operating the dental handpiece and autoclaving the dental handpiece.

First claim

What is claimed is:

1. A dental handpiece, comprising:
an inner barrel for rotatably retaining an ultrasonic insert, the inner barrel constructed to enclose a fluid chamber and to contact the ultrasonic insert with a cooling fluid in the inner barrel;
a coil unit arranged and disposed to apply an alternating magnetic field to the ultrasonic insert when positioned in the inner barrel;
at least one contact retention clip that contacts a drive coil of the coil unit;
an outer sheath extending around at least a portion of the coil unit,
wherein a bucking coil and feedback coil are not present.

2. The dental handpiece according to claim 1 , wherein power is received through a wire end that mates with an end of the handpiece.

3. The dental handpiece according to claim 2 , wherein a first key portion of the wire end mates into a second key portion of the handpiece end.

4. A medical device configuration having a wire end and a medical device end, comprising:
a first key portion in the wire end,
a second key portion in the medical device end,
the wire end comprising receptacle contacts and a fluid fitting,
the medical device end comprising a fluid port and at least one electrical pin in a molded cavity,
wherein the receptacle contacts mate into the molded cavity thereby contacting the at least one electrical pin,
wherein the fluid fitting mates into the fluid port, and
wherein the first key portion mates with the second key portion.

Assignees

• Dentsply Sirona Inc

Inventors

• Guaragno Kenneth R

Classifications

• A61C3/03

  Instruments operated by vibration · CPC title

• A61C17/20

  using ultrasonic waves · CPC title

• A61C1/07 Primary

  with vibratory drive, e.g. ultrasonic waves · CPC title

• A61C1/148

  Non-rotating tool holders, e.g. vibrating, oscillating, nutating · CPC title