DENTAL TOOL HAVING A HAND GRIP

• US 20080057470A1
• Filed: 10/31/2007
• Published: 03/06/2008
• Est. Priority Date: 12/12/2002
• Status: Abandoned Application

• Current Assignee: Discus Dental LLC (Koninklijke Philips N.V.)
• Original Assignee: Discus Dental LLC (Koninklijke Philips N.V.)
• Inventors: Hayman, Robert, Levy, Hiam, Atkin, Benjamin, Rosenblood, Kenneth
• Application Number:
  US11/932,797
• Publication Number:
  US 20080057470A1
• Time in Patent Office: Days
• US Class Current: 433/118
• CPC Class Codes: A61C 1/00 Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
• CPC Class Codes: A61C 17/20 using ultrasonics
• CPC Class Codes: A61C 19/00 Dental auxiliary appliances dental chairs or accessories therefor, working stands whether or not combined with chairs A61G15/00

Abstract

The present invention relates to a hand grip for dental instruments that provides a dental professional with a more secure and comfortable means of grasping a dental hygiene tool. In one embodiment, the instrument has an elongated dental handpiece having an interior that is solid, hollow or partially solid. The elongated handpiece has a distal end and a proximal end and a longitudinal portion in between. A grip portion is attached to the body of the handpiece anywhere between the distal end and the proximal end, comprising a grip stop against which the operator'"'"'s hand rests while gripping the handpiece and using the tool. At least one insert is present on the handpiece at an end. A locking mechanism for locking the position of the grip anywhere along the handpiece is also disclosed.

Claims

1-20. -20. (canceled)

21. A method of using a set of dental handpieces having varying diameters, each of said handpiece comprises:

a body having a substantially hollow interior, a proximal end and a distal end and a longitudinal portion in between; and

a handle grip portion disposed on the body anywhere between the distal end and the proximal end, said handle grip portion comprising a locking mechanism for locking said handle grip portion along the longitudinal portion of the handpiece;

wherein said handpieces are used interchangeably by a dental professional during the day to vary the grip.

22. The method of claim 21 wherein each of said handpieces further comprising at least one vibrator module positioned and supported inside the body.

23. The method of claim 21 wherein each of said grip portions is slidable along the longitudinal portion of each of the handpiece.

24. The method of claim 21 wherein each of said locking mechanism comprises a grip stop.

25. The method of claim 21 wherein said grip portion functions as a contra balance and lever to reduce the pressure on an operator'"'"'s fingers and wrists.

26. The method of claim 21 wherein said locking mechanism comprises a lever connected to a cam surface.

27. The method of claim 21 wherein said grip portion comprises a trigger for adjusting the locking mechanism.

28. The method of claim 26 wherein said cam surface engages the outer surface of the handpiece when the lever is pressed.

29. A dental tool comprising:

a handpiece comprising a body having a substantially hollow interior for housing functional parts of the dental tool, a proximal end and a distal end and a longitudinal portion in between;

a grip portion disposed on the body of the handpiece anywhere between the distal end and the proximal end;

wherein said grip portion is slidable along the longitudinal portion of the handpiece and comprises a grip stop, said grip stop including a curved surface region describing a substantially smooth curve between a first surface portion substantially parallel to a longitudinal axis of said longitudinal portion and a second surface portion generally perpendicular to said longitudinal axis.

30. The dental tool of claim 29 wherein at least one insert is present on the handpiece at one end.

31. The dental tool of claim 29 wherein said grip portion is in the form of a pistol grip.

32. The dental tool of claim 31 wherein said grip portion can be locked into place along the longitudinal portion of the handpiece to fit the hand size of different users.

33. The dental tool of claim 29 further comprising a locking mechanism.

34. The dental tool of claim 29 wherein said grip portion includes a lever portion, said lever portion being adapted to counterbalance the handpiece to reduce the pressure on the operator'"'"'s fingers and wrists.

35. The dental tool of claim 29 further comprising at least one vibrator module positioned and supported inside the body.

36. A dental tool comprising:

an elongated handpiece having a body with an interior, a distal end, a proximal end, and a longitudinal portion in between;

a grip portion disposed on the body of the handpiece anywhere between the distal end and the proximal end; and

a locking mechanism;

wherein said grip portion comprises a trigger for adjusting the locking mechanism.

37. The dental tool of claim 36 wherein said grip portion includes a lever portion, said lever portion being adapted to counterbalance the handpiece to reduce the pressure on the operator'"'"'s fingers and wrists.

38. The dental tool of claim 36 wherein said locking mechanism comprises a lever connected to a cam surface.

39. The dental tool of claim 36 further comprising a grip stop.

40. The dental tool of claim 36 further comprising at least one dental insert, wherein said at least one dental insert is selected from the group consisting of a dental drill bit insert;

a rotary tool insert;

an endodontic file;

a reamer;

a prophy angle and combinations thereof.