US 2020/0046455 A1Published application

Disposable Dental Tool

AssigneeHenan Jian Li Da Medical Instrument Co., Ltd.

InventorsJian Zhang, Xiaoping LI

Life of this patent

Estimating the term…

Loading patent…

Abstract

A disposable dental tool includes a disposable handpiece and a bit mount and dismount device. The disposable handpiece includes an elongated handle body, a drill head provided at one end of the handle body, and a through holding channel for holding a drill bit thereat. The bit mount and dismount device includes a handheld actuator having a thumb pusher surface and an opposed bit pusher surface, and a pusher bit protruded from the bit pusher surface. The thumb pusher surface of the handheld actuator is held to push the bit pusher surface thereof toward the drill head for mounting the drill bit at the disposable handpiece by pushing the drill bit through the through holding channel and for dismounting the drill bit at the disposable handpiece by pushing the drill bit out of the through holding channel via the pusher bit.

Claims21

Dependent claims

A disposable dental tool, comprising:

a disposable handpiece comprising an elongated handle body, a drill head provided at one end of said handle body, and a bit holder for holding a drill bit thereat, wherein said bit holder has a through holding channel extended from a rear side of said drill head to a front side thereof, such that the drill bit is held at said through holding channel and is protruded from said front side of said drill head;
and
a bit mount and dismount device which comprises a handheld actuator having a thumb pusher surface and an opposed bit pusher surface, and a pusher bit protruded from said bit pusher surface, wherein said thumb pusher surface of said handheld actuator is held to push said bit pusher surface of said handheld actuator toward said drill head for mounting the drill bit at said disposable handpiece by pushing the drill bit through said through holding channel and for dismounting the drill bit at said disposable handpiece by pushing the drill bit out of said through holding channel via said pusher bit.

Dependencies are inferred from the claim text.