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Class 433/114 - Hand-held tool or handpiece


Subclass of Class 433 - Dentistry
Definition: Apparatus comprising either (a) a hand-held device having
No. of patents: 84
Last issue date: 03/30/2010


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NumberTitleIssue Date
7686614Dental handpiece drive train with non-intersecting axes
A dental handpiece includes a body having a first portion and a second portion, the first and second portions disposed at an ergonomic angle to each other. A drive gear extends from the second portion toward the first portion. The drive gear has a first axis of rota...
03/30/2010
7575432Torque transmission for a surgical or dental rotating tool
The invention concerns a handpiece for a surgical or dental tool (3), which can be inserted in the head of the handpiece (1) through an insertion hole (14) into a tool holder (2) and is rotationally supported by means of two axially separ...
08/18/2009
7488173Instrument with pressure sensing capabilities
A hand held instrument for carrying out some function on a work piece. The instrument is a handpiece that is held by the user and includes a working element at the distal end of the handpiece for working on the work piece. There is a source of power that activates t...
02/10/2009
7448870Handpiece for dental or surgical use with locking mechanism
The handpiece includes at the front a collet arranged for strongly gripping the shank of a removable tool housed in guide bores. The collet includes two or several arms attached to an annular part of the collet to grip the tool shank. Preferably, the collet arms are...
11/11/2008
7416410Medical or dental handpiece with a rear and a front shaft section that form an obtuse angle
The invention relates to a medical or dental medical handpiece (3) having an elongate shaft (13), which has in its front end region a tool holder (5) having a lateral insertion opening (5a) for a tool (6), and having a rearw...
08/26/2008
7217269Electrosurgical control system
An electrosurgical control system includes a selector by which a user can select any of a number of electrosurgical devices or similar devices for use, and a processor system responsive to user actuation of a foot control or other central control by controlling the ...
05/15/2007
7214060Handpiece for dental or surgical use
At the front, a handpiece (1) has a clamp (10) fitted to tightly grip the shank of a removable tool housed in guide holes (23, 25). The clamp has two or more levers (26) attached to an annular section (22) of the clamp by elastic j...
05/08/2007
7207798Mechanized dental instrument
A mechanized dental instrument includes an active part (2) and a sleeve (3) arranged on an end of the dental instrument which opposes the active part. The sleeve (3) is provided with a rotary drive means (4) that can, when assembled with ...
04/24/2007
7179087Medical or dental-medical handpiece having a rearward and a forward handpiece section
The invention relates to a medical or dental-medical treatment which at its rearward end has a coupling element for coupling on to a matching coupling element of a flexible supply line, and in its forward region has a holder device for a tool, the handpiece being of...
02/20/2007
7156659Contra-angle handpiece for rotary surgical instruments, in particular in dental surgery
A driven appliance, such as a contra-angle handpiece for surgical instruments, in particular for dental surgery, includes a handle, a neck and a head for receiving an instrument. The handle and the neck of the contra-angle handpiece each receive a drive shaft, respe...
01/02/2007
7140880Medical or dental-medical handpiece having a rotary part mounted in a roller bearing
The invention relates to a medical or dental-medical handpiece having a rotary part which is rotatably mounted in a bearing bush by means of a roller bearing having an inner ring and an outer ring. In order to improve the handpiece with regard to an axial limiting o...
11/28/2006
7100476Torque wrench for dental implants
A manually-operated, adjustable dental implant torque wrench employs a screw holding sheath for placing a dental screw in a mouth of a patient. A handle offset to avoid opposite teeth to the work area is provided with a bevel gear and pinion set to translate the tur...
09/05/2006
7063692Surgical operation system
A plurality of handpieces used to perform an operation is connected to a main operation apparatus, which generates a driving signal, through connectors formed on the main apparatus. When an operator holds a handpiece he/she wants to use, an output line over which th...
06/20/2006
6939535Method and apparatus for preventing tooth decay
A method for preventing tooth decay by initially treating the tooth surface with a laser with a coherent or noncoherent light source. This process makes the tooth more resistant to acid and more able to bond fluoride, thus requiring a lower concentration of fluoride...
09/06/2005
6908607Dental bleaching gel composition and activator
A dental bleaching gel composition having a long shelf life for use with an activator system to cause accelerated bleaching action over a shortened time period of a peroxide bleaching agent in the bleaching gel composition when applied upon a tooth surface for cosme...
06/21/2005
6899538Identification type instrument assembly, identification type adapter, identification type tube, and medical apparatus using them
An identification type instrument assembly detachably connected to a main body of a medical apparatus for use in diagnosis and treatment. The instrument assembly is provided with identification signal output means for actively outputting unique self-identification s...
05/31/2005
6814157Rotary tool flex shaft with lock pin and end cap
A handpiece for a rotary tool including a flexible power shaft configured for connection at one end to the rotary tool, and at the other end to the handpiece, with at least one locking formation affixed to the shaft. The handpiece includes a housing having a first e...
11/09/2004
6793490Dental handpiece for the polymerization of photosetting compounds or resins, compatible with the power supply of other handpieces
A dental handpiece for the polymerization of photosetting resins or compounds comprising as its polymerizing light source, at least one LED incorporated in the handpiece, the electrical supply signal for the LED light source being drawn from connectors of other type...
09/21/2004
6638068Medical handpiece having a rod-shaped grip part
The invention relates to a medical, in particular dental-medical handpiece (3) having a rod-shaped grip part in the forward end region of which there is arranged a holding device (5) having a lateral insertion opening (13) for a working tool (6), whereby ...
10/28/2003
6607385Method and device for limiting the torque of dental and surgical handpieces
In a method for controlling a torque of a motor of dental and surgical handpieces to not exceed a set-point value when screwing in implant members, a motor current for applying the set-point torque is determined immediately before screwing in an implant m...
08/19/2003
6607384Lighting device for dental or medical instrument, and dental or medical instrument having lighting device
Disclosed is a lighting device for use with a dental or medical instrument having a tool in the distal part of the instrument for treatment of a site. The lighting device includes a plurality of LEDs and an LED holder encasing the plurality of LEDs and ca...
08/19/2003
6582405Electrically-driven dental injector
An electrically-driven dental injector used in orally injecting such an injection liquid as an anesthetic in dental treatment. Electrically-driven dental injectors includes one having a mechanism for disengaging a pinion (82) from a rack (48) in order to ...
06/24/2003
6379149Dental treatment area
The invention relates to a preparation unit for tubeless and cordless dental treatment appliances such as handpieces or the like which comprise at least one charging device that is connected to a pressure source for flowable media in order to charge the t...
04/30/2002
6358252Apparatus for extracting bone marrow
Methods and apparatus are presented for extracting and collecting bone marrow from the jawbone of a patient before, during, or after dental procedures. The method and apparatus further provides a readily accessible, and easily harvested, source of bone ma...
03/19/2002
6171108Endodontic file handpiece
An improved rotary handpiece and endodontic file for cleaning and enlarging a root canal of a tooth are provided by the present invention. The handpiece includes a rotary drive connected to a chuck assembly for rotating the endodontic file and a movable l...
01/09/2001
6128966Inspection method for endodontic files, and equipment for same
An inspection equipment is provided by which the endodontic file is examined and judged as to if it reaches to its critical strength. When an appropriately selected endodontic file out of the endodontic files 11, 12, 13 in the kit case 1 is set at the fil...
10/10/2000
5947485Collet assembly and manufacturing process
An Improved Collet Assembly and Manufacturing Process is disclosed. Also disclosed is an improved collet that includes a spindle, a center portion comprising several tabs and a collar. The disclosed collet is manufactured from a single piece of stock, and...
09/07/1999
5944523Dental assembly having multi-movement motor
A motor and handpiece assembly for driving a dental tool has a contra-angle and a motor. The contra-angle has a handle, a neck connected to the handle, and a head connected to the neck and adapted to hold the dental tool. The motor is adapted to drive the...
08/31/1999
5941705Manual drive endodontic handpiece
A manual drive endodontic handpiece includes a housing having proximal end and a distal end provided with an angle head which receives a dental tool. A drive shaft extends through the housing and is coupled to a manual driver such that rotational movement...
08/24/1999
5941704Crown cage for ball bearing and dental hand piece including the same
A crown cage is applied to a ball bearing for high-speed rotation for a dental hand piece or the like. The cage has a cylinder formed by injection molding of a thermoplastic resin, and pockets for holding balls that are formed at a predetermined circumfer...
08/24/1999
5913859Apparatus for extracting bone marrow
Methods and apparatus are presented for extracting and collecting bone marrow from the jawbone of a patient before, during, or after dental procedures. The method and apparatus further provides a readily accessible, and easily harvested, source of bone ma...
06/22/1999
5683248Autoclaving cap for dental handpieces
An autoclaving collar having a distal end and a proximate end is presented for fastening to the proximate end of a conventional dental handpiece to protect the impeller of the handpiece from the corrosive environment of autoclaving or sterilization. The c...
11/04/1997
5674068Medical or dental handpiece
A medical or dental handpiece having a grip sleeve formed with an outer gripping surface structure which provides improved grippability. The outer gripping surface structure is formed with alternate grooves and corrugations extending circumferentially aro...
10/07/1997
5639236Root canal dental handpiece
This invention is a new handpiece for performing semi-automatic root canal procedures. The handpiece is a lightweight, low rpm, cordless and rechargeable file motor. The file is spun in a counter clockwise direction while the entire handpiece is moved in ...
06/17/1997
5586886Rotary handpiece for endodontic instruments
The present invention provides an improved rotary handpiece for cleaning and enlarging the root canal of a tooth with a rotary endodontic file. The handpiece includes a retractable support rod attached to and extending from the handpiece positioned adjace...
12/24/1996
5575647General purpose dental handpiece
A general purpose dental handpiece comprises a shank portion rigidly fixed to a nonarticulatable head portion adapted to removably support a drill burr along a burr axis disposed at an angle of 105°&#b1;2° with respect to the axis of the shank portion. ...
11/19/1996
5464350Dental handpiece with a check valve
A dental handpiece has a coupling member in which a passage for delivering a coolant to a discharge nozzle at the head part is provided. In order to prevent a flow-back of contaminated fluid with bacteria past the handpiece, a check valve is provided and ...
11/07/1995
5380201Dental handpiece having cleaning unit
A dental handpiece having a cleaning unit contains a turbine gas supply passage for supplying a gas under pressure to a turbine for rotationally driving a dental tool, a rinsing liquid supply passage for supplying a rinsing liquid to a turbine head, a chi...
01/10/1995
5348473Medical tool
A medical tool such as a prophy angle is provided having primarily plastic parts to make disposing more economical. A portion of the drive shaft is made of metal to eliminate detrimental deformation. The housing is made of two plastic halves which snap-fi...
09/20/1994
5308242Disposable handpiece for dental procedures
A disposable hand tool of the compressed air drive type is disclosed for use in performing dental procedures on a workpiece. An elongated body has conduits penetrating a base at one end of the body. The conduits allow entry of a light beam, a pressurized ...
05/03/1994
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