# US 10,368,959 B2 · Dental handpiece comprising a peltier element or thermo-electric cooler to cool the dental burr > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,368,959 B2 - Document ID: US10368959B2 - Status: Granted - Kind: B2 - Application number: 15/740,886 - Filed: 2015-07-02 - Published: 2018-07-05 - Granted: 2019-08-06 - Earliest claimed: 2015-07-02 - Assignees: Abuhaimed Hamad - Applicants: Abuhaimed Hamad; Ivo Krejci - Inventors: Abuhaimed Hamad; Ivo Krejci - Web page: https://patentgrep.com/patent/US10368959B2 ## CPC - A61C 1/0069: {Fluid temperature control} - A61C 1/06: with electric drive - A61C 1/141: {in an angled handpiece} - 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) - H10N 10/10: operating with only the Peltier or Seebeck effects - A61C 1/0023: {Foot control} - A61C 2204/005: using chip tag or any electronic identification mean, e.g. RFID - A61C: DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE (non-driven toothbrushes A46B; {tongue scrapers A61B17/24;} preparations for dentistry A61K6/00; preparations for cleaning the teeth or mouth A61K8/00, A61Q11/00) - H10N: ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR ## 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 ### Claim 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. ### Claim 2 (depends on 1) A dental handpiece according to claim 1, wherein the motor (10) is an electric motor driven by a power supply and/or a battery. ### Claim 3 (depends on 1) 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. ### Claim 4 (depends on 1) 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). ### Claim 5 (depends on 4) 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. ### Claim 6 (depends on 1) A dental handpiece according to claim 1, wherein the outer sleeve (1) constitutes a handpiece body with a resistant surface coating. ### Claim 7 (depends on 6) A dental handpiece according to claim 6, comprising a thermal insulation material covering the surface of a handpiece body. ### Claim 8 (depends on 1) 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). ### Claim 9 (depends on 1) A dental handpiece according to claim 1, comprising a light source (7) located in or attached to a tip portion (4) of the handpiece. ### Claim 10 (depends on 1) 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. ### Claim 11 (depends on 1) 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. ### Claim 12 (depends on 11) A dental handpiece according to claim 11, wherein a light source (7) is also located in the tip-portion of the handpiece. ### Claim 13 (depends on 1) 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.