Dental prophylaxis angle and handpiece assembly

a technology for prophylaxis angles and handpieces, applied in dental surgery, dental tools, manufacturing tools, etc., can solve the problems of difficult to remove broken off driveshafts from handpieces, prophylaxis angles showing poor stability when mounted on handpieces, etc., to achieve better grip and feel.
US20120107769A1Inactive Publication Date: 2012-05-03DENTSPLY SIRONA INC
8 Cites 5 Cited by

Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
DENTSPLY SIRONA INC
Publication Date
2012-05-03
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A dental prophylaxis angle and handpiece assembly for cleaning and polishing teeth is provided. The dental prophylaxis angle is removably attached to the dental handpiece by an interlocking mechanism that includes extension locking tabs, a locking annular member, and an interlocking drive member in the handpiece. The prophy angle is securely snap-fitted onto the handpiece and locked in place so that it has minimal lateral movement. After the prophy angle has been used to treat a patient, it can be removed easily from the handpiece and disposed thereof.
Need to check novelty before this filing date? Find Prior Art

Description

[0001] The present application is a continuation of US Design Patent Application Ser. No. 29 / 359,163 having a filing date of Apr. 7, 2010, now pending, which is a continuation of U.S. patent application Ser. No. 12 / 004,145 having a filing date of Dec. 20, 2007, now patented as U.S. Pat. No. 7,955,079.BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] The present invention relates generally to dental instruments used for cleaning and polishing teeth. More particularly, the invention relates to a dental prophylaxis angle and handpiece assembly. The dental prophylaxis angle is removably attached to the dental handpiece by a new interlocking mechanism.

[0004] 2. Brief Description of the Related Art

[0005] Today, dental professionals use dental instruments commonly known as dental prophylaxis (prophy) angles for cleaning and polishing teeth. Referring to FIG. 1, traditional prophy angles (10) include a one-piece or multi-piece tubular housing (12) having sleeve (14), neck (16), a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More