公开(公告)号：US20240050194A1

公开(公告)日：2024-02-15

申请号：US18363390

申请日：2023-08-01

申请人： NAKANISHI INC.

发明人： Toyohei Nakajima ,  Masahiro Higashi

IPC分类号： A61C1/00 ,  A61C1/06

CPC分类号： A61C1/0015 ,  A61C1/06

摘要： An abnormality determination device for a dental handpiece, the abnormality determination device including: an electrical current output unit configured to supply, to a drive motor attached to the dental handpiece, a test electrical current in a no-load state, the test electrical current being smaller than a no-load electrical current at a rotational speed of the dental handpiece during a normal treatment in the no-load state; a rotational speed detector configured to detect a rotational speed of the drive motor in a state where the test electrical current is supplied; a processor configured to compare the rotational speed detected by the rotational speed detector with a threshold rotational speed; and an abnormality detector configured to determine abnormality that the dental handpiece is abnormal if the rotational speed detected by the rotational speed detector is smaller than the threshold rotational speed.

公开(公告)号：US11896449B2

公开(公告)日：2024-02-13

申请号：US15356550

申请日：2016-11-19

申请人： Sohail M. Ebrahimi

发明人： Sohail M. Ebrahimi

IPC分类号： A61C1/08 ,  A61C1/06 ,  A61C1/05 ,  A61C5/44 ,  A61B1/07 ,  A61B1/24 ,  A61C1/00 ,  A61C3/02 ,  A61B90/00

CPC分类号： A61C1/082 ,  A61B1/07 ,  A61B1/24 ,  A61C1/0061 ,  A61C1/05 ,  A61C1/06 ,  A61C1/084 ,  A61C1/088 ,  A61C3/02 ,  A61C5/44 ,  A61B2090/034 ,  A61B2090/036 ,  A61C2201/002

摘要： A snap-on snap-off drill stop device for boring into a tooth and or in bone. The stop device that impedes insertion of the bore device into the tooth or bone tissue beyond predetermined depths at pre-selected stages of a drilling process by simplifying the tedious process of exchanging drill bits and drill stops for the ultimate size and depth bore.

公开(公告)号：US20230053221A1

公开(公告)日：2023-02-16

申请号：US17792666

申请日：2020-12-30

申请人： GUILIN WOODPECKER MEDICAL INSTRUMENT CO., LTD.

发明人： Xunxian WU ,  Yoshitsugu TERAUCHI ,  Fengwen WEI ,  Kunyou WU ,  Jianfeng ZHAN ,  Xingzhi XIAN ,  Zerong CHEN

IPC分类号： A61C5/42 ,  A61C1/12 ,  A61C1/07 ,  A61C1/06

摘要： A root canal treatment device relates to the technical field of dental treatment instruments. The root canal treatment device comprises a contra-angle hand-piece (10) and a root canal file (20) detachably connected to the contra-angle hand-piece (10), and further comprises a drive module (30) in transmission connection with the root canal file (20), the drive module (30) comprises a rotation driver (31) and a vibration generator (32), wherein the rotation driver (31) is configured to drive the root canal file (20) to rotate axially, so as to mechanically cut and ream the root canal, thus shaping the root canal, and the vibration generator (32) is configured to drive the root canal file (20) to vibrate radially. Vibration of the root canal file (20) at a specific frequency can sufficiently activate the activity of the drug material filled in the root canal, especially in the process of filling the drug material into the root canal, the vibration provided by the vibration generator (32) and the rotation of the root canal file (20) that are carried out simultaneously can efficiently discharge the air bubbles in the drug material filled in the root canal, so that the drug material can be tightly filled into the root canal, thereby providing a better environment for subsequent root canal treatment, improving the effect of root canal treatment, and relieving the patients' pain.

公开(公告)号：US11464602B2

公开(公告)日：2022-10-11

申请号：US16496038

申请日：2018-03-23

申请人： Eugenio Pedulla

发明人： Eugenio Pedulla

IPC分类号： H02P29/00 ,  A61C1/06 ,  H02P29/20 ,  H02P29/40 ,  A61C5/40 ,  H02P1/04

摘要： A method and a device for controlling an electric motor (9), in particular for moving an endodontic instrument. The device has a first sensor (8) and a control unit (2). The control unit (2) has a drive unit (4), a second sensor (6) and a processing unit (3). The processing unit (3) is configured to cause the endodontic instrument (7) to perform a sequence of movements (M1, M2). The sequence of movements (M1, M2) includes a continuous forward movement (M1) and at least one alternating movement (M2). The sequence may include an additional alternating movement (M3) and/or a reverse movement (M4). The number and order of movements to be performed in a sequence depends on a set of predefined threshold values reflecting the torque load applied to the instrument, as measured by one of the sensors.

公开(公告)号：US20200253688A1

公开(公告)日：2020-08-13

申请号：US15749025

申请日：2017-10-13

申请人： Michael Feldman ,  Zachary D. Blume

发明人： Michael Feldman ,  Zachary D. Blume

IPC分类号： A61C1/00 ,  A61C17/22 ,  A61C17/00 ,  A61C1/06 ,  G05G1/30

摘要： The invention provides a unitary cordless dental drive apparatus in a first embodiment having a handpiece with a cantilever arm 18 extending outward and positioned to allow a dental nose cone 26 to be connected. An activating switch 20 is located at the free end of the cantilever arm 18 in a position that is convenient for manipulation by a user. In a second embodiment, a contactor 22 is mounted below the cantilever arm 18′ to contact the nose cone 26′ when pressed. In a third embodiment, a standard dental office foot pedal 90 is connected to a wireless transmitter 80 for sending a signal to a receiver 92 located within the handpiece 70 for activating the handpiece 70.

公开(公告)号：US20190269902A1

公开(公告)日：2019-09-05

申请号：US16351039

申请日：2019-03-12

申请人： G & H Technologies, LLC

发明人： Gilbert FREGOSO ,  Brad B. HECKERMAN

IPC分类号： A61N1/04 ,  A61C3/00 ,  A61N1/32 ,  A61B18/04 ,  A61C17/02 ,  A61C17/20 ,  A61C19/06 ,  A61C1/07 ,  A61C1/06 ,  A61C17/16 ,  A61N1/30 ,  A61L2/18 ,  A61L2/14 ,  A61L2/10 ,  A61L2/025 ,  A61C5/50 ,  A61C5/40 ,  A61N5/06 ,  A61N1/44 ,  A61N1/05 ,  A61C3/03

摘要： An electrical discharge irrigation device includes a power source to produce power of a first voltage, a circuit coupled to the power source to convert the power of the first voltage to power of a second voltage where the second voltage is higher than the first voltage, a trigger to activate the circuit, an igniter coupled to the circuit to produce a spike, an electrical charge storage component coupled to the igniter the electrical charge storage component becoming conductive and storing an electrical charge after receiving the spike, and an output tip. The output tip includes an electrode and insulating material as an outer layer.

公开(公告)号：US10285788B2

公开(公告)日：2019-05-14

申请号：US15108715

申请日：2014-12-22

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Franciscus Jozef Bosman ,  Pieter Johannes Bax

IPC分类号： A61C17/34 ,  H02K33/16 ,  A61C17/22 ,  H02K33/00 ,  A61C1/06

摘要： Actuator for a personal care appliance comprising a housing, a spindle, a tangential actuator portion, an axial actuator portion, and a controller. The tangential actuator portion comprises a first magnet and pole assembly having a first sequence of individual grouped magnet segments spaced apart within the housing in a first radial orientation and polarity order, and a first pole assembly of pole members in a first radial configuration about the spindle, a second magnet and pole assembly having a second sequence of individual grouped magnet segments spaced apart within the housing in a second radial orientation and polarity order, and a second pole assembly of pole members in a second radial configuration about the spindle, and an electromagnetic coil disposed about the spindle in-between the first and second magnet and pole assemblies. The tangential actuator portion rotationally displaces the spindle with respect to the housing about a principal axis.

公开(公告)号：US10232164B2

公开(公告)日：2019-03-19

申请号：US14427469

申请日：2012-12-17

申请人： AMERICAN EAGLE INSTRUMENTS, INC.

发明人： Gilbert Fregoso ,  Brad B. Heckerman

IPC分类号： A61C17/02 ,  A61N1/44 ,  A61N1/04 ,  A61N1/32 ,  A61B18/04 ,  A61C1/06 ,  A61C3/00 ,  A61C17/20 ,  A61C19/06 ,  A61C1/07 ,  A61C3/03 ,  A61N1/05 ,  A61N5/06 ,  A61C17/16 ,  A61N1/30 ,  A61C5/40 ,  A61C5/50 ,  A61L2/025 ,  A61L2/10 ,  A61L2/14 ,  A61L2/18 ,  A61L2/00 ,  A61L2/22

摘要： An electrical discharge irrigation device includes a power source to produce power of a first voltage, a circuit coupled to the power source to convert the power of the first voltage to power of a second voltage where the second voltage is higher than the first voltage, a trigger to activate the circuit, an igniter coupled to the circuit to produce a spike, an electrical charge storage component coupled to the igniter the electrical charge storage component becoming conductive and storing an electrical charge after receiving the spike, and an output tip. The output tip includes an electrode and insulating material as an outer layer.

公开(公告)号：US20180353275A1

公开(公告)日：2018-12-13

申请号：US15618037

申请日：2017-06-08

申请人： KAVO DENTAL TECHNOLOGIES, LLC

发明人： Robert Thomas St. Louis ,  Michael Carl Dunaway ,  Steven Bohon ,  Mitchell James Rutledge

IPC分类号： A61C19/00 ,  G06F19/00 ,  A61C1/00 ,  A61C1/06 ,  A61C1/18

CPC分类号： A61C19/002 ,  A61C1/0007 ,  A61C1/0015 ,  A61C1/0061 ,  A61C1/06 ,  A61C1/181 ,  A61C2204/005 ,  G16H40/63

摘要： A handpiece maintenance system and method identifies a dental handpiece and operates in a diagnostic cycle to power the handpiece and determine predictive maintenance condition thereof. The handpiece maintenance system includes a temperature sensor and/or an acceleration sensor to measure the conditions of the handpiece during the diagnostic cycle. The predictive maintenance condition of the handpiece is based on data from the diagnostic cycle and other stored data for the identified handpiece. A system is also configured to determine a predictive maintenance condition of the handpiece based on sensor data read from a handpiece and historical usage data thereof.

公开(公告)号：US20180256289A1

公开(公告)日：2018-09-13

申请号：US15456227

申请日：2017-03-10

申请人： KAVO DENTAL TECHNOLOGIES, LLC

发明人： Robert Thomas St. Louis ,  Michael Carl Dunaway ,  Steven Bohon

IPC分类号： A61C1/08 ,  A61C1/06 ,  A61C1/00

CPC分类号： A61C1/08 ,  A61C1/0061 ,  A61C1/0084 ,  A61C1/06 ,  A61C1/18

摘要： A coupling device for selectively coupling a dental handpiece to a dental base station. An electrical power source is housed by the coupling device. A first end of the coupling device is selectively coupleable to the dental base station and configured to receive a gaseous or fluid medium from the dental base station. A second end of the coupling device is selectively coupleable to the dental handpiece and configured to output the gaseous or fluid medium from the dental base station to the dental handpiece and to output electrical power from the electrical power source to the dental handpiece.