Dental handpiece comprising a peltier element or thermo-electric cooler to cool the dental burr

• US 10,368,959 B2
• Filed: 07/02/2015
• Issued: 08/06/2019
• Est. Priority Date: 07/02/2015
• Status: Active Grant

• Current Assignee: Abuhaimed Hamad
• Original Assignee: Abuhaimed Hamad
• Inventors: Hamad, Abuhaimed, Krejci, Ivo
• Primary Examiner(s): Lewis, Ralph A
• Application Number:
  US15/740,886
• Publication Number:
  US 20180185116A1
• Time in Patent Office: 1,496 Days
• CPC Class Codes: A61C 1/0023 Foot control
• CPC Class Codes: A61C 1/0069 Fluid temperature control
• CPC Class Codes: A61C 1/06 with electric drive
• CPC Class Codes: A61C 1/141 in an angled handpiece
• CPC Class Codes: A61C 2204/005 using chip tag or any electronic identification mean, e.g. RFID
• CPC Class Codes: H10N 10/00 Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects integrated devices or assemblies of multiple devices H10N19/00
• CPC Class Codes: H10N 10/10 operating with only the Peltier or Seebeck effects

Abstract

A dental handpiece comprises an outer sleeve (1), a tool-holding socket (2) for holding a treatment tool (3) arranged in the handpiece, wherein the tool-holding socket (2) has a central axis about which the tool-holding socket (2) can be rotated and/or oscillated and wherein the tool-holding socket (2) is arranged to be driven by a driveshaft of the handpiece driven by a motor (10) housed in the outer sleeve (1). At least one Peltier element (5) is received in the handpiece in thermal contact with the tool-holding socket (2), the Peltier element (5) having a cool face in thermal contact with the tool-holding socket (2) to cool a treatment tool (3) held therein when the tool (3) is driven in rotation or oscillation.

Claims

1. A dental handpiece, comprising an outer sleeve (1), a tool-holding socket (2) for holding a treatment tool (3) arranged in the handpiece, wherein the tool-holding socket (2) has a central axis about which the tool-holding socket (2) can be rotated and/or oscillated and wherein the tool-holding socket (2) is arranged to be driven by a driveshaft of the handpiece driven by a motor (10) housed in said outer sleeve (1), characterized in that at least one Peltier element (5) is received in the handpiece in thermal contact with the tool-holding socket (2), the Peltier element (5) having a cool face in thermal contact with the tool-holding socket (2) to cool a treatment tool (3) held therein when the tool (3) is driven in rotation or oscillation.

2. A dental handpiece according to claim 1, wherein the motor (10) is an electric motor driven by a power supply and/or a battery.

3. A dental handpiece according to claim 1, comprising two tubes (8, 9) external or internal to the outer sleeve (1), one for lubricant and the other one for compressed gas or for pumped liquid/gas, the two tubes (8, 9) terminating with discharge nozzles for delivering sprayed lubricant to a tool (3) held in the handpiece.

4. A dental handpiece according to claim 1, comprising a wireless receiver (11) housed in the outer sleeve (1) of the handpiece and arranged for digital handpiece control and for a wireless connection with an external control (12).

5. A dental handpiece according to claim 4, wherein said external control (12) comprises a foot pedal containing a transmitter, or a PC, or a smart phone, a smart tablet, a PC, or a laptop.

6. A dental handpiece according to claim 1, wherein the outer sleeve (1) constitutes a handpiece body with a resistant surface coating.

7. A dental handpiece according to claim 6, comprising a thermal insulation material covering the surface of a handpiece body.

8. A dental handpiece according to claim 1, wherein the tool-holding socket (2) houses a detachable handpiece shank and head adapted to receive different dental treatment tools (3).

9. A dental handpiece according to claim 1, comprising a light source (7) located in or attached to a tip portion (4) of the handpiece.

10. A dental handpiece according to claim 1, which includes a micro cryocooler and/or micro gas circulation within the handpiece outer sleeve (1) for cooling purposes.

11. A dental handpiece according to claim 1, wherein the tool-holding socket (2)- and the Peltier element (5) are located in a tip portion (4) of the handpiece.

12. A dental handpiece according to claim 11, wherein a light source (7) is also located in the tip-portion of the handpiece.

13. A dental handpiece according to claim 1, comprising a fixed and/or removable screen arranged on the outer sleeve (1) of the handpiece, the screen being arranged to show the status of the handpiece including its battery status, its speed and lubricant flow.