公开(公告)号：WO9600631A2

公开(公告)日：1996-01-11

申请号：PCT/US9508363

申请日：1995-06-27

Applicant: DENTSPLY RES & DEV

Inventor： FOULKES HARVEY B ,  WARRIN GEORGE E ,  DAO HUY-CAN ,  PERDREAUX RENE

IPC: A61C1/07 ,  A61C3/03 ,  A61C17/00 ,  A61C17/20 ,  B08B3/02 ,  B23P15/00 ,  B23P15/26 ,  B23P15/28 ,  B23Q1/00

CPC classification number: A61C3/03 ,  A61C17/20 ,  B08B3/02 ,  B23P15/26 ,  B23P15/28 ,  B23Q1/0036

Abstract: A transducer activated tool for contacting workpiece surfaces and directing fluid adjacent to said surfaces is disclosed. The tool may be ultrasonically activated by attachment to an insert (11) that includes a magnetostrictive element (14). The tip (20, 50, 60, 80, 90) includes distal surfaces (58, 63, 81, 95) shaped to contact the workpiece and additionally includes a fluid passageway (45, 53, 61, 91) internal to the tip (20, 50, 60, 80, 90) that is bored generally along the centerline of the tip (20, 50, 60, 80, 90) but is offset (54, 93) from the tip axis (56, 92) such that a discharge orifice (46, 52, 57) is formed in the tip (20, 20, 50, 60, 80, 90) displaced from the distal tip end (58, 63, 81, 95). The passageway (45, 53, 61, 91) is preferably angularly offset (54, 93) so that the discharge orifice (46. 62, 57) is formed in the distal end (58, 63, 81, 95) of the tip (20, 50, 60, 80, 90) about 2-8 mm from the distal end (58, 63, 81, 95) of the tip. The tip (20, 50, 60, 80, 90) when shaped to conform to dental or tooth surfaces is particularly useful as a dental tool. In another embodiment the fluid passageway (91) is eccentrically offset (93) from the tip axis (92) wherein the passageway (91) is substantially parallel to the center axis (92) but displaced therefrom preferably by about 0.1 to 0.5 mm. The tip end and fluid delivery passageway discharge orifice (46, 62, 57) are located relative to each other such that fluid is provided to the workpiece or tip without the formation of excessive spray and without weakening the distal tip such that it is sufficiently strong to provide useful service in resisting flexural stresses and the like.

Abstract translation: 公开了一种用于接触工件表面并引导与所述表面相邻的流体的换能器激活工具。 可以通过附接到包括磁致伸缩元件（14）的插入件（11）来超声波地激活该工具。 尖端（20,50,60,80,90）包括成形为接触工件的远侧表面（58,63,81,95），并且还包括尖端内部的流体通道（45,53,61,91） （50,50,60,80,90），其通常沿尖端（20,50,60,80,90）的中心线钻孔，但是与尖端轴线（56,92）偏移（54,93），使得 在从远侧末端（58,63,81,95）移位的前端（20,20,50,60,80,90）中形成有排出口（46,52,57）。 通道（45,53,61,91）优选地成角度地偏移（54,93），使得排出孔（46.62,57）形成在尖端的远端（58,63,81,95）中 （20,50,60,80,90）从所述尖端的远端（58,63,81,95）开始约2-8mm。 成形为符合牙齿或牙齿表面的尖端（20,50,60,80,90）作为牙科工具是特别有用的。 在另一个实施例中，流体通道（91）与尖端轴线（92）偏心（93）偏离（93），其中通道（91）基本上平行于中心轴线（92），但是偏离其优选地为约0.1至0.5mm。 尖端和流体输送通道排放孔46,62,57相对于彼此定位，使得流体被提供给工件或尖端而不形成过度的喷雾，而不会使远端尖端变薄，使得其足够坚固 以提供有效的抗弯曲应力等。