子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Dental handpiece | US13483250 | 2012-05-30 | US08579629B2 | 2013-11-12 | Eiichi Nakanishi |
| A dental handpiece is disclosed which has a head housing, a gear shaft having a gear part with gear teeth and a shaft part extending from the gear part, and a dust control seal sealingly fit on the circumferential surface of the shaft part of the gear shaft. The dust control seal is an annular member, and has a seal body, a first lip projecting radially inwardly from the seal body, and a second lip projecting radially inwardly from the seal body above and spaced apart from the first lip, with a space defined between a contact area between the first lip and the shaft part, and a contact area between the second lip and the shaft part. | ||||||
| 42 | Motor-driven Handpiece | US13318861 | 2010-05-07 | US20120085561A1 | 2012-04-12 | Johannes Sauter; Hans Heckenberger; Bernd Gugel; Bernhard Kuhn |
| A motor-driven handpiece, which has a grip sleeve with a head area for mounting a tool, in particular for the preparation of tooth substance and/or bone substance, in which the head area is at least partially surrounded or encapsulated by a thermoplastic material which, compared to the material of the rest of the grip sleeve, has a lower thermal conduction value. | ||||||
| 43 | DISPOSABLE DENTAL HANDPIECE | US13120919 | 2008-10-21 | US20110177473A1 | 2011-07-21 | Saied Mohamed Hassan Darwish; Gamal Mohamed Hassan Darwish; Abdelnasser K. Daoud |
| A disposable dental handpiece, including a first handle portion; a second handle portion; a vibration dampening portion, the vibration dampening portion located interposed between the first handle portion and the second handle portion. In another embodiment, a multi-layer disposable dental handpiece, including a first layer of material having an outer surface defining a first outer surface portion of the multi-layer disposable dental handpiece; a second layer of material having an outer surface defining a second outer surface portion of the multi-layer disposable dental handpiece; a layer of vibration dampening material located interposed between the first and second layer of material defining a third outer surface portion of the multi-layer disposable dental handpiece. In yet another embodiment, methods for making a disposable dental handpiece are described. | ||||||
| 44 | IMAGING DEVICE FOR DENTAL TREATMENT, AND INSTRUMENT UNIT FOR DENTAL TREATMENT WITH IMAGING DEVICE | US12736520 | 2009-06-02 | US20110058716A1 | 2011-03-10 | Shinichi Okawa; Seiichiro Yamashita; Kazunari Matoba |
| An imaging device for dental treatment for use in an instrument for dental treatment with a head to which a rotary cutting tool can be attached. The imaging device for dental treatment comprises: an imaging module with an imaging element; and a mounting section through which the imaging module is detachably attached to the instrument for dental treatment such that the imaging module is on the bottom side or on the lateral side of the head, and that the imaging module is in a posture that causes the imaging axis of the imaging module and the rotary axis of the rotary cutting tool to be substantially parallel. | ||||||
| 45 | DISPOSABLE DENTAL HANDPIECE | US12200724 | 2008-08-28 | US20090061384A1 | 2009-03-05 | Eli Thomssen; Dirk Schipper; Kevin Turner |
| A sterile, substantially maintenance free disposable dental handpiece is constructed from two shells and a center core, the center core having a flow deflector on one end. The shells are joined around the core with mating protrusions and/or tapered walls to form the body and head of the handpiece. A base is integrally-formed with the center core. The base has conduits that allow entry of light and pressurized air and/or water into the body. The head at the opposite end of the body from the base rotatably mounts an impeller assembly having an impeller shaft. The impeller shaft includes blades driven by the pressurized air. The blades can have cavities to reduce weight. | ||||||
| 46 | Dental Handpiece | US11795418 | 2006-02-06 | US20090017414A1 | 2009-01-15 | Goran Andersson |
| The present invention relates to a dental handpiece (1; 1′) which comprises a body (3) intended to be held by an operator, such as a dentist or dental hygienist, an implement (9) being able to be fitted in a front part of the body (3) so that the operator is able to carry out an oral procedure on a patient with the aid of the implement (9) when holding the body, a light source (29) being disposed in the body (3) and intended to emit light for illuminating the patient's oral cavity during the oral procedure. The invention is characterized in that the dental handpiece (1; 1′) additionally comprises a lens arrangement (33) designed to diffuse the light from the light source (29) within the patient's oral cavity. | ||||||
| 47 | Method and apparatus for balancing the rotating elements of a dental handpiece | US11977585 | 2007-10-25 | US20080202236A1 | 2008-08-28 | Lu He; Eugene J. Novak |
| A method of balancing a set of rotating turbine elements includes measuring imbalance in the rotating elements; adding or removing material to or from at least two correction planes in the turbine set at an angular location measured during the imbalance measurement; and, if necessary, repeating said steps of measuring and removing until a predetermined balance is achieved. | ||||||
| 48 | Medical or dental hand-piece element | US12011142 | 2008-01-23 | US20080176181A1 | 2008-07-24 | Stefan Putz; Stephan Rauchenzauner; Norbert Schatz; Karl Schmiedlechner; Hannes Wagner |
| There is disclosed a medical or dental hand-piece element comprising a coupling mechanism for a detachable connection of the hand-piece element to a drive unit, a tool receptacle that is or can be connected to the hand-piece element, and a drive element for transmitting a driving movement from the drive unit to the tool receptacle so that the tool receptacle can be set into a working movement, wherein the drive element comprises at least one rotatable shaft, and a generator for converting mechanical energy into electric energy, wherein the generator can be driven by the at least one rotatable shaft of the drive element. | ||||||
| 49 | CLOSED LOOP SPEED CONTROL FOR A PNEUMATIC DENTAL HANDPIECE | US11836229 | 2007-08-09 | US20080145817A1 | 2008-06-19 | Kevin Brennan; Timothy M. Beck; Eugene J. Novak; Thomas E. Barker; William Raymond; Karl H. Bethke |
| A detection system for remotely determining the speed of a rotating tool tip in a pneumatic dental handpiece. A means for detecting the speed of the rotating tool tip monitors a periodic mechanical function at the pneumatic hose connected to the handpiece. The monitored periodic mechanical function serves to provide feedback that is used to control the speed of the rotating tool tip. The means for detecting the speed of the rotating tool detects a mechanical function of the rotating tool tip, which in transmitted to a controller. The controller in turn regulates the operation of an air supply valve in response to the detected mechanical function. The valve regulates the flow of air to the handpiece. By continuously adjusting the flow of air through the valve into the pneumatic hose, the speed of the rotating tool is maintained at the desired cutting speed. | ||||||
| 50 | Disposable dental instrument | US11369528 | 2006-03-07 | US20060183073A1 | 2006-08-17 | Jerry Browning; David Murphy; Thomas Crooks; Brian Babson |
| A disposable dental instrument of the compressed air drive type is disclosed for use in performing dental procedures on a workpiece. The disposable dental instrument is constructed from two mating shells and a core. Each shell incorporates a mating surface and said shells are joined using various bonding methods to ensure a waterproof, high quality dental instrument. An elongated body has conduits penetrating a base at one end of the body. The conduits allow entry of a light beam, a pressurized water stream, and a compressed air stream into the body. The base includes attachment threads for securing the body to a source of the light beam, pressurized water stream, and compressed air stream. Pluralities of passageways are in communication with the conduits for conducting the light beam, the water stream, and the air stream through the body. A head at the opposite end of the body rotatably mounts a turbine shaft on bearing surfaces which inhibit vibration and noise. The turbine shaft includes a turbine impeller and a clamping hole for removable attachment of a dental bur to the shaft. The air stream drives the impeller at a high speed for rotating the bur about a rotational axis. An opening in the body adjacent to the head allows release of the light beam, the pressurized water stream, and a portion of the compressed air stream in a direction toward the distal end of the bur so that the bur, the light beam, the water stream, and the air stream may all converge on the workpiece. | ||||||
| 51 | Method and apparatus for balancing the rotating elements of a dental handpiece | US10943406 | 2004-09-17 | US20050160810A1 | 2005-07-28 | Lu He; Eugene Novak |
| A method of balancing a set of rotating turbine elements includes measuring imbalance in the rotating elements; adding or removing material to or from at least two correction planes in the turbine set at an angular location measured during the imbalance measurement; and, if necessary, repeating said steps of measuring and removing until a predetermined balance is achieved. | ||||||
| 52 | Rotation lock device for preventing undesired rotation of a shaft especially for handpieces used in medical treatments | US10654187 | 2003-09-02 | US06916176B2 | 2005-07-12 | Norbert Schatz; Thomas Jindra |
| A rotation locking device located in the area of two separate, independent shafts or shaft sections for preventing the undesired rotation of a shaft or shaft section. The rotation locking device includes a locking pin which, in its idle position (during operation of the appliance), rests on a displacement surface of a shaft or shaft section. In the event of the undesired rotation of a shaft (caused, for example, when a tool is being unscrewed from a coupling which is connected to the shafts), the shaft underneath the locking pin turns until the pin is forced out of the displacement surface, is displaced outwards radially and pressed against a component which is fixed to the body of the appliance (e.g. the bearing sleeve of the gearbox in which the rotation locking device is fitted). Any further rotation of the shafts is prevented in this manner. | ||||||
| 53 | Dental handpiece components | US10947886 | 2004-09-23 | US20050037317A1 | 2005-02-17 | Tom Papanek; Lu He; Amit Patel |
| A dental handpiece (10) of the type having at least one component (11) fabricated from an elastomeric material, is improved by fabricating the component (11) from a perfluoroelastomer. | ||||||
| 54 | Dental hand instrument | US10933302 | 2004-09-03 | US20050032021A1 | 2005-02-10 | Johann Hain; Ulf Stein |
| A dental hand instrument has two structurally distinct functional units capable of interconnection. One functional unit comprises a head piece equipped with a tool a portion of grip element which at least has the function of making it possible to hold the hand instrument in the hand, connecting element, and a driving mechanism or means for transmitting the energy therefor. A second functional unit comprises at least one carrier for conduits and/or conductors for media and signals respectively. The first functional unit forms a drive-independent, hand-held unit, having an external housing that is closed all round, and contains means for the attach-ment of the second functional unit (F1/2). | ||||||
| 55 | ASPIRATION UNIT | US09982651 | 2001-10-17 | US20030073054A1 | 2003-04-17 | Gregory L. Van Hale |
| A readily disposable aspiration unit that can be connected to various dental instruments of conventional design including ultrasonic scalers. The aspiration unit includes a novel suction means for automatically carrying away from the operative field cooling water and debris generated during the performance of the scaling procedure. The unit further includes a tip-encompassing shroud that uniquely functions as a suction scoop for automatically capturing aerosols in the operative field including aerosols containing saliva, blood, tissue, calculus and like adherent deposits, which are generated during the scaling procedure. | ||||||
| 56 | Torque control unit, drilling system for implant surgery having torque control unit, and method for controlling torque with torque control unit | US10053709 | 2002-01-24 | US20020146663A1 | 2002-10-10 | Eiichi Nakanishi; Yoshimi Yoshizawa |
| There is disclosed a torque control unit to be used with an instrument for implant surgery, a drilling system including the control unit, and a method for controlling torque with the control unit. The control unit includes a torque limiter that is detachably attached to the bur of the instrument for presetting and shuts off torque transmission from the bur at a preset torque value, and a control section controlling current value of the driving section of the instrument. The control section includes a detector for detecting a current value of the driving section corresponding to the preset torque value when the torque limiter shuts off torque transmission, a memory for storing the detected current value, and a current controller for controlling a current value of the driving section in accordance with the stored current value. | ||||||
| 57 | Air-driven dental vibratory instrument with a replaceable vibrator module | US10058975 | 2002-01-30 | US20020119419A1 | 2002-08-29 | Eiji Suzuki; Yutaka Kadota |
| An air-driven dental instrument (10) includes a replaceable vibrator module (16) detachably accommodated in an axial lodgment defined by an elongated outer casing (14) comprised of a frontal cap (22A) and a main body (26A) coupled with each other. When the cap (22A) is coupled, the module (16) is axially positioned against the cap (22A) by a positioning sleeve (90A) and is rotationally locked against the sleeve (90A) by a hexagonal formation (128) engaging into cutouts (136) formed on a housing (134). When the cap (22A) is disconnected from the main body (26A), the module (16) is retained by the housing (134) but is partly exposed therefrom. This permits a user to grip the module to thereby facilitate replacement of the module (16). | ||||||
| 58 | Angle piece for dental or surgical use | US09670109 | 2000-09-26 | US06398551B1 | 2002-06-04 | Norbert Schatz; Richard Kardeis; Andreas Bachmaier |
| A collapsible angle piece for dental or surgical use has a head part, an elbow part detachably connected to the head part, and a handle detachably connected to the elbow part remote from the head part and having an actuating surface. The elbow part has a cage that is axially moveable between a locking position and a release position. At least one locking element is radially moveably supported in the cage, wherein the at least one locking element can be in a radially inner position or a radially outer position depending on whether the cage is in the locking position or in the release position. At least one elongate actuating member is arranged in the elbow part so as to be substantially axially moveable, wherein the at least one elongate actuating member has a first end cooperating with the cage and a second end cooperating with the actuating surface of the handle. | ||||||
| 59 | Medical or dental treatment instrument for chip-removing treatment of body tissue or a substitute material with an abrasive tool | US09050119 | 1998-03-30 | US06176703B1 | 2001-01-23 | Bernd Gugel; Gerd Löhn; Walter Mössle; Uli Xeller |
| In a medical or dental treatment instrument (1) for chip-removing treatment of body tissue or a substitute material with an abrasive tool (7), consisting of a handpiece (2) with an oblong gripping sleeve (41), in the front end area of which a vibration part (4) is supported, which can be set vibrating by a vibration generator (5), the handpiece (2) being connected or connectable at its rear end area to a flexible supply line (18), which extends from a supply device, the output of the vibration generator (5) is variable, and a control device (72) is provided with which the output can be increased or reduced. | ||||||
| 60 | Dental handpiece with detachable motor | US158226 | 1998-09-22 | US6042377A | 2000-03-28 | Yukio Ito |
| A dental handpiece having a detachable motor. The dental handpiece includes a handpiece body having a dental tool, a driving section detachably connected to the handpiece body, the driving section further including a motor for operatively driving the dental tool, and a motor casing having a substantially tubular wall for defining a motor cavity for accommodating the motor. The motor casing allows the motor to be inserted and removed in an axial direction including a fastener for holding the motor in position in the motor casing. | ||||||
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