| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Dental/medical handpiece | US10147818 | 2002-05-20 | US20030215768A1 | 2003-11-20 | Paul M. Aumuller; Paolo Accettone |
| A dental/medical handpiece having a flexible portion is disclosed. In one embodiment, the handpiece is an abrasion handpiece, for use with a flow of gas having abrasive material entrained therewithin, and comprises a housing including a handle, a nozzle-receiving portion and a flexible neck connecting the handle to the nozzle-receiving portion. A nozzle rigidly attached to the nozzle-receiving portion of the housing is also provided, as is a gas tube. The gas tube has a first end adapted to receive said flow, and extends, from said first end, through the handle, the neck portion and the nozzle-receiving portion, to the nozzle, to direct said flow to issue through the nozzle, outwardly from the housing. In another embodiment, the handpiece is a rotary tool, for use with a rotary bit, such as a dental drill. In a further embodiment, the handpiece is a laser handpiece, for use with a laser generator. | ||||||
| 142 | Medical handpiece having a rod-shaped grip part | US09872605 | 2001-06-01 | US06638068B2 | 2003-10-28 | Bernhard Lingenhöle; Thomas Braun |
| 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 the middle axis (5a) of the insertion opening (13) includes, with the middle axis (3c) of the grip part extending rearwardly from the point of intersection with the middle axis (5a), an obtuse angle (W2). In order to improve the suitability of the handpiece (3) also for use in small spaces of the body to be treated, a forward grip section (3b) of the grip part is curved towards the side (14) of the handpiece (3) away from the insertion opening (13), and the obtuse angle (W2) is smaller than 103° and greater than 95°. | ||||||
| 143 | Medical handpiece having a rod-shaped grip part | US09872605 | 2001-06-01 | US20020009691A1 | 2002-01-24 | Bernhard Lingenhole; Thomas Braun |
| 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 the middle axis (5a) of the insertion opening (13) includes, with the middle axis (3c) of the grip part extending rearwardly from the point of intersection with the middle axis (5a), an obtuse angle (W2). In order to improve the suitability of the handpiece (3) also for use in small spaces of the body to be treated, a forward grip section (3b) of the grip part is curved towards the side (14) of the handpiece (3) away from the insertion opening (13), and the obtuse angle (W2) is smaller than 103null and greater than 95null. | ||||||
| 144 | Angle piece for dental purposes | US616227 | 1984-05-16 | US4564354A | 1986-01-14 | Otto Rosenstatter |
| The invention is directed to an angle piece for dental purposes comprising a tool with cylindrical tool shaft (50), which tool is supported in the head part (1) transversely relative to the drive axis or axle and is securely connected with its drive gear wheel (5) and is interchangeable together with the latter and is characterized in that a head bearing (42) on the tool side, which head bearing (42) is insertable in the head part (1) in a form-locking manner, is rotatably and undetachably connected with the tool (4) and in that an outer screw sleeve (29), which is axially displaceable on the head shaft, partly overlaps the head bearing (42) in its inserted position. A construction of the invention provides that the opening of the screw sleeve (29) has a hollow cone (33) which is pressable against a corresponding outer cone face (49) of the head bearing (42). | ||||||
| 145 | Speed-increasing device for a dental handpiece | US442626 | 1982-11-18 | US4475889A | 1984-10-09 | Philippe Garcia; Roger Gaillard |
| An angle-drive head of a dental handpiece with the housing thereof removable. A speed-increasing pinion is provided for meshing with a drive pinion of the angle-drive. A shaft connected to the pinion extends axially in the head and has a speed-increasing pinion for developing a greater speed. A speed-increasing device removably coupled to the head has a third speed-increasing pinion and a fourth pinion is coupled thereto. A tool-receiving jaw is provided in the device for coupling to the fourth speed-increasing pinion for being rotationally driven therefrom. | ||||||
| 146 | Motorized dental handpiece | US134254 | 1980-03-26 | US4295830A | 1981-10-20 | Sakae Uchida |
| A motorized dental handpiece has a head and a head cap portion which is connectable thereto. The head cap portion includes a head gear shaft, a head gear rotatable with the head gear shaft, a head cap, a flange rotatable with the head gear shaft, and a seal ring positionable between the head cap and the flange. The head gear shaft, head cap, seal ring and flange constitute releasably connected members of a unitary head cap portion assembly which is releasably connectable to the head of the handpiece. | ||||||
| 147 | Dental handpiece | US953473 | 1978-10-23 | US4253832A | 1981-03-03 | Ronald L. Bailey |
| A dental handpiece having a cross head with one end capped and the other end open, a driven gear in the capped end having a thrust bearing against the cap, and a fixed bearing extending from the gear to the open end with a driven shaft rotatably mounted in the bearing; a threaded socket in the driven shaft to receive the complementary attaching means on a dental tool, a cylindrical recess in the open end to receive a flange on the tool and grooves in the driven shaft to restrain travel of abrasive from the open end toward the closed end thereof, the bearing being long enough to give complete bearing support for the rotating mechanism. | ||||||
| 148 | Contra-angle head for driving two dental tools | US898779 | 1978-04-21 | US4226591A | 1980-10-07 | Henri Leonard |
| A contra-angle tool holder head notably for dental drills and cutters, for rotatably driving in opposite directions two coaxial dental tools such as drills or cutters comprises a first holding member adapted to drive the first tool and consisting of a claw supporting a first bevel pinion and a second holding member for rotatably driving the second tool in the opposite direction, this second holding member consisting of a second hollow bevel pinion, both holding members being driven simultaneously from a third bevel pinion carried by a shaft driven in turn from the motor and disposed between the first and second bevel pinions, the axis of the drive being disposed at right angles to the common axis of the first and second bevel pinions and of their holding members. | ||||||
| 149 | Dental handpiece and drive arrangement therefor | US810991 | 1977-06-29 | US4222738A | 1980-09-16 | Ernst Strohmaier |
| A dental handpiece having a drive arrangement which provides for different speeds to be imparted to a dental tool. The drive arrangement comprises a planetary gear arrangement and a transmission member adapted for intercoupling to provide the different speeds at an output drive shaft for the dental tool. Interengagement means comprising axial slots are provided on the planetary gear arrangement, and a counter-engagement means including balls having segments which protrude from the transmission are provided to engage the interengagement axial slots to transmit the different speeds from a drive motor to the dental tool. | ||||||
| 150 | Drilling or milling apparatus for the working of live bone, particularly for dentistry | US558075 | 1975-03-13 | US4021920A | 1977-05-10 | Horst Kirschner; Wolfgang Meyer |
| Cooling means for bone or tooth cutting tool. In order to cool the cutting surfaces of a bone or tooth cutting tool, there is provided in the supporting shank of the cutting tool a first chamber containing the driving means for the tool and a second chamber within or communicating with the cutting tool itself, said two chambers being separated by a perforable diaphragm seal. Conduit means for introducing cooling media into the interior of said tool is received into a suitable recess in the upper portion of the tool housing, extends through said first chamber and is provided with a pointed tip for piercing said diaphragm seal for extending into said second chamber. Cooling media is then introduced into the interior of said tool and exits therefrom for cooling both the tool itself and the material being cut. | ||||||
| 151 | Dental handpiece | US544910 | 1975-01-29 | US4014099A | 1977-03-29 | Ronald L. Bailey |
| A dental hand piece including a closed top housing, a bur tube therein which consists of an integral gear and sleeve, the sleeve having an inwardly-projecting boss to engage a bur and drive it, a resiliently releasable member to hold the bur in the tube against accidental displacement, and a positive retaining member to prevent removal of the tool during operation, so that a dental tool can, by insertion into the tube, and by the rotation of the bur tube, be rotated and also secured in the tube. | ||||||
| 152 | Dental handpiece for a motor driven reamer | US544331 | 1975-01-27 | US3969823A | 1976-07-20 | Toshimasa Nakanishi |
| A cylindrical member of the present dental handpiece is provided with a cup bearing held into an opening adjacent its upper end and also with an annular bearing disposed into said opening adjacent its lower end. A metallic member having a substantially inclined bottom face is secured to the cup bearing. A top end face of a bushing having a worm wheel is coincidentally inclined to fit to said inclined bottom face of the metallic member so as to form a cam mechanism. The bushing is formed with an annularly widened opening therein adjacent its lower end to receive a collet chuck and also a screw thread around said bushing, which is rotatably inserted into the cylindrical member through the cup and annular bearings. A reamer is firmly held into the bushing through a collet chuck, and a worm gear is associated with the worm wheel. According to the dental handpiece, the reamer is driven to rotate slowly once at its each vertical mot motion, enabling to carry out a finger touch operation. | ||||||
| 153 | Dental hand instrument | US3727312D | 1971-03-15 | US3727312A | 1973-04-17 | DURANTE J |
| An improved dental hand instrument is provided having means whereby the head of the instrument can be rotated relative to the body thereof so that a dental work piece projecting from the head can be displaced through an arc and positioned at various angles with respect to the body. In a preferred embodiment, the dental hand instrument is provided with an improved and simplified drive means whereby the number of working parts required to drive a dental work piece secured thereto is significantly reduced.
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| 154 | Dental handpiece | US2924012D | US2924012A | 1960-02-09 | ||
| 155 | Holder for dental instruments | US72162134 | 1934-04-20 | US2033662A | 1936-03-10 | PAUL WITT |
| 156 | Contraangle attachment for dental handpieces | US1849225 | 1925-03-26 | US1678096A | 1928-07-24 | ANDRESEN LAURITZ B |
| 157 | Handpiece | US7668125 | 1925-12-21 | US1653212A | 1927-12-20 | JOHNSON WALTER R; CANFIELD ALFRED C |
| 158 | Handpiece for dental engines. | US1911663846 | 1911-12-04 | US1056341A | 1913-03-18 | KELTIE ALEXANDER R |
| 159 | Dental handpiece. | US1903161419 | 1903-06-15 | US756336A | 1904-04-05 | CRAWFORD LYTER H |
| 160 | Dental plugger. | US1898689684 | 1898-08-27 | US647010A | 1900-04-10 | MARSHALL FRANK L |
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