公开(公告)号：WO1990008505A1

公开(公告)日：1990-08-09

申请号：PCT/US1990000360

申请日：1990-01-24

Applicant: DOLPHIN IMAGING SYSTEMS INC.

Inventor： DOLPHIN IMAGING SYSTEMS INC. ,  LEMCHEN, Marc, Stuart ,  ENGEL, Gary, Alan

IPC: A61B05/103

CPC classification number: A61C19/04 ,  A61C7/002 ,  Y10S128/92

Abstract: In the generation of cephalometric images, for example in orthodontic analysis, a probe (13) linked to a computer (1) is used to determine directly the positions of anatomical points of the head (12) of a subject which is held in place by a restrainer (6). The position of the tip of the probe is determined using sonic transmitters (14) and receivers (4). The points located by the probe are used to determine the positions of anatomical landmarks for cephalometric tracings including, by means of extrapolation, some that are inaccessible to the probe. These are then used to produce a cephalometric tracing which can be superimposed on a video image of the subject's head. The use of x-rays or invasive techniques is avoided.

Abstract translation: 在产生头颅图像时，例如在正畸分析中，连接到计算机（1）的探针（13）被用于直接确定被保持在的对象的头部（12）的解剖点的位置， 限制器（6）。 使用声波发射器（14）和接收器（4）确定探头尖端的位置。 由探针定位的点用于确定头颅测量的解剖学标记的位置，包括通过外推法，探针不可接近的部分。 然后将它们用于产生可以叠加在受检者头部的视频图像上的头颅跟踪。 避免使用x射线或侵入性技术。

公开(公告)号：WO1990008512A1

公开(公告)日：1990-08-09

申请号：PCT/US1990000361

申请日：1990-01-24

Applicant: DOLPHIN IMAGING SYSTEMS INC.

Inventor： DOLPHIN IMAGING SYSTEMS INC. ,  LEMCHEN, Marc, Stuart

IPC: A61C07/00

CPC classification number: A61C13/0003 ,  A61C7/002 ,  A61C7/12 ,  A61C7/146

Abstract: A method for providing an orthodontic bracket for placement on a malocclused tooth in a patient's jaw to correct the malocclusion, comprises the steps of generating digitized information representative of the shape of the tooth and its location with respect to the jaw; using data processing equipment to generate a mathematical model of the tooth as located in the jaw, from the digitized data, and to calculate the finish position in the jaw to which the tooth is to be moved; determining the form of the bracket and its placement position on the tooth in order to move the tooth to the finish position in a selected course of orthodontic treatment; and providing the bracket of such form. A jig may also be provided to ensure correct placement of the bracket on the tooth.