Sheldon N Lerner

US Patent:

6626670, Sep 30, 2003

Filed:

Nov 28, 2000

Appl. No.:

09/723748

Inventors:

Sheldon Lerner - Cedarhurst NY
Christopher Robert - Lambertville NJ 08530
Anthony Handal - Westport CT

Assignee:

Sheldon A. Lerner - Cedarhurst NY
Christopher Robert - Lambertville NJ

International Classification:

A61C 107

US Classification:

433122, 433118

Abstract:

A periodontal surgical instrument is disclosed which includes a motor. A rotary member is mounted for movement at a center of rotation of the rotary member. A shaft couples the output of the motor to the center of rotation of the rotary member. A coupling structure is secured to the rotary member at a point displaced from its center of rotation. A follower member is coupled to the coupling structure. A track member is coupled to the follower member and configured to allow the follower member to move in a closed loop path. A tool secured to the follower member. A method of use is also described for this periodontal surgical instrument for procedures where extraction is desired.

US Patent:

D567947, Apr 29, 2008

Filed:

Feb 27, 2007

Appl. No.:

29/273122

Inventors:

Sheldon A. Lerner - Brooklyn NY, US
Albert Zickman - Chicago IL, US

International Classification:

2403

US Classification:

D24156

US Patent:

20090239196, Sep 24, 2009

Filed:

Mar 18, 2008

Appl. No.:

12/077286

Inventors:

Sheldon A. Lerner - Brooklyn NY, US
Albert Zickmann - Chicago IL, US

International Classification:

A61C 8/00

US Classification:

433174

Abstract:

A system for dental implants which includes a dental implant having a central bore, a threaded portion, an abutment having a central bore and a tapered portion, and a fastening screw. The fastening screw has a threaded portion, which engages the dental implant and a tapered head which forms a locking engagement with the tapered portion of the abutment.

US Patent:

20110086327, Apr 14, 2011

Filed:

Oct 9, 2009

Appl. No.:

12/576272

Inventors:

Sheldon Lerner - Woodmere NY, US
Albert Zickmann - Chicago IL, US

International Classification:

A61C 9/00
A61C 8/00
B29C 45/14

US Classification:

433173, 433214, 264279

Abstract:

A UCLA castable abutment and impression taking component are combined into one unit. The shape of the plastic distal end of the UCLA abutment is fabricated so that it will have one or more undercuts as well as one or more anti-rotation features to allow it to be used while taking an impression of the abutment's relationship to the implant using the indirect transfer method. The combination of an anti-rotation and undercut feature allow the UCLA abutment to be gripped by the impression. The unit includes a bore to allow a fixation screw to fixate the unit to either an implant or implant analog.