公开(公告)号：US09867676B2

公开(公告)日：2018-01-16

申请号：US14767198

申请日：2014-11-02

Applicant: Sirona Dental Systems GmbH

Inventor： Metin Ertugrul ,  Siegfried Goisser

IPC: A61C1/05 ,  A61C1/18

CPC classification number: A61C1/052 ,  A61C1/0038 ,  A61C1/057 ,  A61C1/185 ,  A61C1/186

Abstract: A dental preparation instrument having a pneumatic turbine (1) with a rotor (5) for driving a tool (1.1), wherein the rotor (5), which is mounted in a turbine chamber (18) for rotation about an axis of rotation (4), is impinged by compressed air from a compressed-air nozzle (22). A first radial partition (23) has an opening (17) via which an annular space (8) is in flow connection with an outlet duct (19).

公开(公告)号：US07927101B2

公开(公告)日：2011-04-19

申请号：US11886975

申请日：2006-03-22

Applicant: Tetsuya Takashi ,  Shozo Nakayama

Inventor： Tetsuya Takashi ,  Shozo Nakayama

IPC: A61C1/05

CPC classification number: A61C1/057 ,  A61C1/05 ,  Y10S415/904

Abstract: A handpiece and a method for driving the handpiece are provided in which a sucking-back problem can be prevented with a simple structure. The handpiece 10 has a gripping portion 11 to be gripped by an operator, a head 15 mounted at a distal end of the gripping portion; and a wheel 55 rotatably mounted in an interior of the head. The head has an inlet 25 from which air is supplied to the wheel and an outlet 28 from which the air is discharged, the inlet and outlet being defined in the head, at least one buffer chamber 47 defined in the head, where the air is forced in due to a centrifugal force applied thereto by rotations thereof with the wheel and then accumulated under positive pressure, passages 66, 67, 68, and 34 for guiding the accumulated air from a neighborhood of the rotating wheel to an atmosphere, and a circumferential wall 44 mounted between the outlet and the wheel for providing a resistance to the air moving from the wheel toward the outlet.

Abstract translation: 提供了用于驱动手持件的手持件和方法，其中可以以简单的结构防止吸回问题。 手持件10具有被操作者夹持的抓握部11，安装在抓握部的远端的头部15; 以及可旋转地安装在头部内部的轮55。 头部具有入口25，空气从该入口25供给到车轮;出口28，排出空气，入口和出口被限定在头部中;至少一个缓冲室47限定在头部，空气是 由于通过其与轮的转动施加到其上的离心力而在正压力下积聚的通道66,67,68和34用于将积聚的空气从旋转轮的附近引导到大气，并且周向 壁44安装在出口和车轮之间，用于提供对从车轮向出口移动的空气的阻力。

公开(公告)号：US20060121413A1

公开(公告)日：2006-06-08

申请号：US10539741

申请日：2003-12-22

Applicant: Derek Turner

Inventor： Derek Turner

IPC: A61C1/00

CPC classification number: A61C1/05 ,  A61B17/1628 ,  A61B17/1646 ,  A61B2017/00553 ,  A61C1/052 ,  A61C1/057 ,  A61C1/12 ,  A61C1/142 ,  A61C1/18 ,  A61C1/181 ,  A61C1/188 ,  A61C3/02 ,  B23B31/005 ,  B23B2231/022

Abstract: A dental handpiece is disclosed including a turbine construction creating a radial in flow of air onto the impeller blades about the whole circumference of the turbine. This generates additional torque and avoids asymmetrical thrust on the impeller wheel. A pair of axially spaced air bearings support the turbine. Air supply to the bearings is controlled in such a way that the air bearings are floated before drive air is supplied to the turbine and after drive air to the turbine has been shut off. This ensures that the air bearings are always operational irrespective of the operational state of the turbine. The handpiece has an improved ergonomic shape, especially the shape and configuration of the front or drive head, which provides additional tooth clearance and a better field of view. An angled swivel connection to the umbilical cord is provided which reduces physical strain on the dentist's wrist. A self adjusting lock and key type torque connection between the dental burr and the chuck is provided which accommodates both conventional burrs and the burr of the lock and key arrangement. An auto stop arrangement for the turbine is disclosed which prevents a vacuum buildup during run-down of the turbine. The specific construction of the auto stop valve in accordance with the invention closes both the drive and exhaust air conduits.

Abstract translation: 公开了一种牙科手机，其包括涡轮机结构，其围绕涡轮机的整个周边产生在叶轮叶片上的径向流动。 这产生额外的扭矩并避免了叶轮上的不对称推力。 一对轴向隔开的空气轴承支撑涡轮机。 以这样的方式控制对轴承的空气供应，即空气轴承在驱动空气供应到涡轮机之前以及驱动到涡轮机的空气已被切断之后浮起。 这确保空气轴承总是可操作的，而与涡轮机的操作状态无关。 手机具有改进的符合人体工程学的形状，特别是前部或驱动头的形状和结构，其提供额外的齿隙和更好的视野。 提供与脐带的倾斜的旋转连接，其减少了牙医手腕上的物理应变。 提供牙钻和卡盘之间的自调节锁和钥匙型扭矩连接，其容纳常规毛刺和锁和钥匙布置的毛刺。 公开了一种用于涡轮机的自动停止装置，其防止在涡轮机失效期间的真空积聚。 根据本发明的自动截止阀的具​​体结构关闭了驱动和排气导管。

公开(公告)号：US6120291A

公开(公告)日：2000-09-19

申请号：US358307

申请日：1999-07-21

Applicant: Erich Bareth ,  Eugen Mohr

Inventor： Erich Bareth ,  Eugen Mohr

IPC: A61C1/05

CPC classification number: A61C1/05 ,  A61C1/057

Abstract: The invention relates to a turbine handpiece (1), in particular for medical or dental-medical purposes, having a drive shaft (2), rotatably mounted in the forward end region of the handpiece (1), with which a tool can be connected by a mounting device, whereby there is arranged on the drive shaft (2), fixed for rotation therewith, a turbine wheel (4) in a turbine chamber (5), in which a delivery line (11) for a flowing pressure medium opens at an inlet opening (11a) and from which a discharge line (12) extends at an outlet opening (12a), whereby a apparatus (22) is provided which after a switching-off of the pressure medium supply, during the running on of the turbine wheel (4), prevents a release of the pressure medium rotating in the turbine chamber (5) through the discharge line. The latter is simplified and improved in that the apparatus (22) is arranged in the region of the turbine chamber (5) and in functional operation deflects the pressure medium rotating in the turbine chamber (5) past the outlet opening (12a).

Abstract translation: 本发明涉及一种涡轮机械手（1），特别是用于医疗或牙科医疗目的，具有可旋转地安装在手持件（1）的前端区域中的驱动轴（2），工具可与其连接 通过安装装置，其中布置在驱动轴（2）上，固定以与其一起旋转，在涡轮室（5）中的涡轮机叶轮（4），其中用于流动压力介质的输送管线（11）打开 在入口开口（11a）处，排出管线（12）在出口开口（12a）处从该入口开口延伸，从而提供一种设备（22），其在关闭压力介质供应之后，在运行期间 涡轮机轮（4）防止在涡轮室（5）中旋转的压力介质通过排放管线释放。 后者被简化和改进，因为设备（22）布置在涡轮室（5）的区域中，并且在功能操作中使在涡轮机室（5）中旋转的压力介质偏离出口（12a）。

公开(公告)号：US5975898A

公开(公告)日：1999-11-02

申请号：US122997

申请日：1998-07-28

Applicant: Angelo Favonio

Inventor： Angelo Favonio

IPC: A61C1/00 ,  A61C1/02

CPC classification number: A61C1/057 ,  A61C1/0061

Abstract: A pneumatically operated, simplified valve actuating device for dental equipment, the valve being capable of avoiding an undesirable dripping of dental instruments at the end of the work. The device includes a valve actuating element identified in a four-way valve, whose body includes a housing for a piston connected to a bobbin, wherein said casing is on one side connected to a selector unit and on the other side to a one-way retention valve, capable of receiving pressurized air from a reducer unit and passing it from said selector unit to a constantly pressurized air line coming directly from said reducer unit and to at least one dental instrument.

Abstract translation: 用于牙科设备的气动操作的简化的阀致动装置，该阀能够避免在工作结束时不期望的牙科器具滴落。 该装置包括在四通阀中识别的阀致动元件，其主体包括用于连接到线轴的活塞的壳体，其中所述壳体在一侧连接到选择器单元，另一侧连接到单向 保持阀，其能够从减速器单元接收加压空气并将其从所述选择器单元传递到直接从所述减速器单元和至少一个牙科器械进入的不断加压的空气管线。

公开(公告)号：US5800171A

公开(公告)日：1998-09-01

申请号：US574335

申请日：1995-12-18

Applicant: Everett A. Barney

Inventor： Everett A. Barney

IPC: A61C1/00 ,  A61C1/05

CPC classification number: A61C1/0076 ,  A61C1/052 ,  A61C1/057

Abstract: An exhaust control system and method are provided for use with one or more pneumatic devices so as to draw contaminated fluid from the fluid outputs of such devices and deposit such contaminated fluid in a waste collector such as a drain. The system is configured for use with any conventional pneumatic device of the type which includes a pressurized fluid input, a turbine driven by fluid from such input, and a fluid output which exhausts fluid from the turbine. Fluid is directed from the fluid output of each pneumatic device to an exhaust manifold which includes a number of inflow ports corresponding to the number of devices serviced. The inflow ports connect to a depressurization chamber, where the fluid flow pressure is lowered, and from which the fluid is drawn via a collective outflow port. The fluid is drawn from the exhaust manifold using a vacuum source and then directed to a waste collector such as a drain.

Abstract translation: 提供了一种用于一个或多个气动装置的排气控制系统和方法，以便从这种装置的流体输出中吸收污染的流体，并将这些污染的流体沉积在诸如排水管的废物收集器中。 该系统被配置为与包括加压流体输入的类型的任何常规气动装置一起使用，由来自该输入的流体驱动的涡轮机以及从涡轮机排出流体的流体输出。 流体从每个气动装置的流体输出引导到排气歧管，排气歧管包括对应于所服务的装置的数量的多个流入端口。 流入端口连接到减压室，其中流体流动压力降低，并且流体经由集合流出端口从该压缩室中抽出。 流体使用真空源从排气歧管抽出，然后被引导到诸如排水管的废物收集器。

公开(公告)号：US5782634A

公开(公告)日：1998-07-21

申请号：US695855

申请日：1996-08-09

Applicant: Bernhard Lingenhole ,  Eugen Mohr

Inventor： Bernhard Lingenhole ,  Eugen Mohr

IPC: A61C1/05 ,  F01D15/06 ,  A61C1/08

CPC classification number: F01D15/062 ,  A61C1/052 ,  A61C1/057 ,  Y10S415/904

Abstract: In a medical, in particular dental turbine handpiece, having a supply line (8) and a discharge line (9) for the turbine compressed air, whereby a valve (12) is arranged in one line, which valve is controllable by a pneumatic parameter in the other line, the valve (12) is arranged in the discharge line (9) and is so controllable that it closes when a limit value of the parameter in the supply line (8) falls below a minimum value.

Abstract translation: 在具有用于涡轮机压缩空气的供应管线（8）和排出管线（9）的医疗，特别是牙科涡轮机手机中，由此将阀门（12）布置在一条直线上，该阀门可由气动参数 在另一条线中，阀（12）被布置在排放管线（9）中，并且是可控的，使得当供应管线（8）中的参数的极限值低于最小值时它关闭。

公开(公告)号：US5676542A

公开(公告)日：1997-10-14

申请号：US494080

申请日：1995-06-23

Applicant: Bernhard Lingenhole ,  Eugen Mohr

Inventor： Bernhard Lingenhole ,  Eugen Mohr

IPC: A61C1/05 ,  A61C1/08 ,  A61C1/18

CPC classification number: F16C19/163 ,  A61C1/05 ,  A61C1/057 ,  A61C1/181 ,  F16C19/547 ,  F16C33/78 ,  F16C2300/12

Abstract: In a medical or dental treatment instrument, in particular a straight or angled handpiece (1), having a drive shaft (6) for a tool, which drive shaft is mounted in the forward end region of the treatment instrument, in at least one roller bearing (11, 12), rotatable around its middle axis (8), and is drivable for example by a turbine, whereby the roller bearing (11, 12) is blocked or sealed against contaminants with of a blocking ring (31) effective between its outer ring (37) and its inner ring (34). The blocking ring (31) bears with its surface facing the inner ring (34) on the inner ring (34) and is releasibly or non-releasibly attached thereon.

Abstract translation: 在医疗或牙科治疗仪器中，特别是具有用于工具的驱动轴（6）的直的或成角度的手柄（1），该驱动轴安装在处理器具的前端区域中，在至少一个辊 轴承（11,12）可围绕其中间轴线（8）旋转，并且可以例如由涡轮驱动，由此滚子轴承（11,12）被阻塞或密封以防止阻塞环（31）的污染物在 其外环（37）及其内环（34）。 阻挡环（31）的表面面向内环（34）上的内环（34）并且可释放地或不可释放地附接在其上。

公开(公告)号：US20140038123A1

公开(公告)日：2014-02-06

申请号：US13685214

申请日：2012-11-26

Applicant: Zhengzhou Zezheng Technical Services Ltd.

Inventor： Chun Zhang ,  Xiaoxia Liu

IPC: A61C1/05 ,  A61B1/24 ,  A61B1/06 ,  A61C3/02

CPC classification number: A61C1/057 ,  A61B1/0684 ,  A61B1/24 ,  A61C1/052 ,  A61C1/088 ,  A61C3/02

Abstract: A dental drill head, constituted of a head housing, a wind wheel, and bearings, the head housing being constituted of a head housing cover and a head housing cavity, and the wind wheel being constituted of a wind wheel shaft and wind wheel blades. An anti-suck-back device is configured between the head housing cover and a wind wheel shaft end part to which the wind wheel shaft corresponds. The present invention, which adopts the aforementioned technical scheme, firstly makes it possible to reduce the intake in of contaminants when suck-back is taking place as the impeller is braked; and secondly, while there is still a positive pressure inside the head, the rubber head covering uses elastic force to brake the impeller and completely prevents the intake of contaminants. Moreover, the structure is simple and costs are low.

Abstract translation: 一种由头壳体，风轮和轴承构成的牙钻头，所述头壳体由头壳体盖和头壳体腔构成，所述风轮由风轮轴和风轮叶片构成。 防吸回装置构造在头壳体盖与风轮轴对应的风轮轴端部之间。 采用上述技术方案的本发明首先能够在叶轮制动时进行回吸时减少污染物的摄入量; 其次，在头部内部仍然具有正压力的情况下，橡胶头罩使用弹力来制动叶轮并完全防止污染物的摄入。 此外，结构简单，成本低。

公开(公告)号：US08641417B2

公开(公告)日：2014-02-04

申请号：US12606843

申请日：2009-10-27

Applicant: Ajay Kumar ,  Kevin J. Stanton

Inventor： Ajay Kumar ,  Kevin J. Stanton

IPC: A61C1/08 ,  A61C3/06 ,  A61C1/00

CPC classification number: A61C1/18 ,  A61B17/1624 ,  A61B17/1646 ,  A61B2017/00398 ,  A61B2090/0813 ,  A61B2217/005 ,  A61C1/057 ,  A61C1/10

Abstract: A system for enhanced sealing against intrusion of moisture and other contaminants for medical/dental handpieces having rotating or other moving elements driven by a motor within the handpiece. The enhanced sealing includes tandem seals on stepped diameters to provide additional flow pathway impediments. The tandem seals preferably include spring seals that are positioned in opposite directions to provide enhanced sealing against pressures in two different directions that occur during the pressurization and vacuum cycles of an autoclaving process. Additional enhancements include the use of annular sealing rings with x-shaped cross sections.

Abstract translation: 一种用于增强密封以防止湿气和其它污染物侵入医疗/牙科手机的系统，其具有由机头内的电动机驱动的旋转或其它移动元件。 增强的密封包括台阶直径的串联密封，以提供额外的流动路径障碍。 串联密封件优选地包括沿相反方向定位的弹簧密封件，以提供增强的密封，抵抗在高压灭菌过程的加压和真空循环期间发生的两个不同方向上的压力。 另外的增强包括使用具有x形横截面的环形密封圈。