公开(公告)号：US06582405B2

公开(公告)日：2003-06-24

申请号：US09849515

申请日：2001-05-07

申请人： Yukio Kawagishi ,  Fumio Tanaka ,  Mutsumi Shibuya ,  Ikuo Kitagawa ,  Renji Hayashi ,  Yoshinori Katoh

发明人： Yukio Kawagishi ,  Fumio Tanaka ,  Mutsumi Shibuya ,  Ikuo Kitagawa ,  Renji Hayashi ,  Yoshinori Katoh

IPC分类号： A61M500

CPC分类号： A61M5/315 ,  A61M5/20 ,  A61M5/24 ,  A61M5/31511 ,  A61M2005/3152

摘要： 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 retract a plunger rod (44) upon completion of injection; however, it has heretofore been necessary to manually operate the operating part from outside each time. The inventive electrically-driven dental injector is so arranged that the plunger rod can be manually pushed back directly oupon completion of injection without requiring manual operation, and, to this end, the injector comprises a latch mechanism (84) for engaging/disengaging the ring gear (70) of a planetary reduction gear (50) with/from a casing (52), and an operating rod (94) extending through a support member (20) and functionally cooperating with the latch mechanism (84).

摘要翻译： 一种电动牙科注射器，用于在牙科治疗中口服注射麻醉剂中的注射液。 电动牙科注射器包括具有用于使小齿轮（82）与齿条（48）分离的机构的装置，以便在注射完成时使柱塞杆（44）缩回; 然而，迄今为止，必须每次从外部手动操作操作部件。 本发明的电动牙科注射器被布置成使得柱塞杆可以手动地被推回直接完成注射而不需要手动操作，并且为此，注射器包括用于接合/分离环的闩锁机构（84） 具有/来自壳体（52）的行星减速齿轮（50）的齿轮（70）和延伸穿过支撑构件（20）并在功能上与闩锁机构（84）配合的操作杆（94）。

公开(公告)号：USD449693S1

公开(公告)日：2001-10-23

申请号：US29125705

申请日：2000-06-27

申请人： Mutsumi Shibuya ,  Yukio Kawagishi ,  Fumio Tanaka

设计人： Mutsumi Shibuya ,  Yukio Kawagishi ,  Fumio Tanaka

公开(公告)号：US06572589B2

公开(公告)日：2003-06-03

申请号：US10138707

申请日：2002-04-30

申请人： Fumio Tanaka ,  Yukio Kawagishi

发明人： Fumio Tanaka ,  Yukio Kawagishi

IPC分类号： A61M500

CPC分类号： A61M5/24 ,  A61M5/20 ,  A61M2005/2407 ,  A61M2005/2492

摘要： A cartridge type dental injection device capable of easily and quickly mounting or removing a cartridge loaded barrel in or from a socket therein and capable of altering orientations of a viewing window in the barrel and of a cut surface of a needle as desired. The cartridge type dental injection device comprises a barrel (9) adapted to be inserted in a socket (5) defined by a mounting member (5a) and having diametrically oppositee viewing windows (11) formed therein, the mounting member (5a) having a plurality of circumferentially spaced apart ball retaining holes (7), and a locking ball (8) placed in each of the holes, the barrel (9) being provided with an annular groove (12) adapted to receive a portion of each locking ball therein, and a locking ring (13) having an annular cam surface (14) and a relieving surface (15) positioned adjacent to each other and movable between a position where when the locking balls (8) are in alignment with the annular groove (12), the annular cam surface (14) pushes the locking balls (8) toward the annular groove (12) to bring portions of the locking balls into engagement with the annular groove and a position where the relieving surface (15) faces the locking balls (8) to release them from the annular groove (12).

摘要翻译： 一种筒式牙科注射装置，其能够容易且快速地将筒体装载在其中或从插座中移除，并且能够根据需要改变针筒中的观察窗和针的切割面的取向。筒型 牙科注射装置包括适于插入由安装构件（5a）限定的并具有形成在其中的直径对立观察窗（11）的插座（5）的筒体（9），所述安装构件（5a）具有多个周向 间隔开的球保持孔（7）和放置在每个孔中的锁定球（8），筒体（9）设置有适于容纳每个锁定球的一部分的环形槽（12），并且 锁定环（13）具有环形凸轮表面（14）和释放表面（15），该释放表面邻近彼此定位，并且可在锁定球（8）与环形槽（12）对准的位置之间移动， 环形凸轮表面处理 e（14）将锁定球（8）推向环形槽（12）以使锁定球的一部分与环形槽接合，并且释放表面（15）面向锁定球（8）释放的位置 它们来自环形槽（12）。