公开(公告)号：US5923169A

公开(公告)日：1999-07-13

申请号：US972192

申请日：1997-11-18

申请人： Gosta Jakob Ehnholm ,  Ilmari Kinanen ,  Robert G. Gylling ,  Ian R. Young ,  Gordon D. DeMeester

发明人： Gosta Jakob Ehnholm ,  Ilmari Kinanen ,  Robert G. Gylling ,  Ian R. Young ,  Gordon D. DeMeester

IPC分类号： G01R33/38 ,  G01R33/421 ,  G01V3/00

CPC分类号： G01R33/421 ,  G01R33/3806

摘要： A magnetic resonance imaging suite is sheathed with plates (32, 34, 36) of iron or other ferrous material. The plates define projections (42, 44, 54, 54', 68) in alignment with each other on opposite ceiling and floor or wall surfaces. A pair of magnetic pole pieces (10, 10'; 50, 50'; 60, 60') are surrounded by superconducting electromagnetic coils (12, 12'; 52, 52'; 62, 62'). The pole pieces are positioned between the ferrous plates in axial alignment. When current flows through the electromagnetic coils, magnetic flux flows between the pole pieces. The ferrous wall sheathing or other ferrous constructions define a flux return path. The pole pieces are magnetically attracted toward each other and are each magnetically mirrored in and attracted toward the adjacent ferrous flux return path. The pole pieces are positioned relative to each other and the ferrous flux return path such that the attraction between the pole pieces is balanced by the attraction between each pole piece and its magnetically mirrored image in the adjacent ferrous material of the flux return path. Optionally, the magnets are selectively extinguished and one or both pole pieces are moved for better access to the patient.

公开(公告)号：US4852134A

公开(公告)日：1989-07-25

申请号：US10821

申请日：1987-02-04

申请人： Ilmari Kinanen ,  Heikki Kanerva ,  Erkki Tammisalo

发明人： Ilmari Kinanen ,  Heikki Kanerva ,  Erkki Tammisalo

IPC分类号： A61B6/00 ,  A61B6/14 ,  G03B42/02

CPC分类号： A61B6/0478 ,  A61B6/14 ,  A61B6/501

摘要： A method and an apparatus for the radiographic recording of a patient's dentition, jaws, and skull regions invalues seating a patient in a patient chair (9) so as localize the patient in the coordinate system of the radiographic apparatus in an unequivocal position before taking the exposure for a radiograph (87). Furthermore, in accordance with the invention, the radiograph (87) is used for measuring the coordinates of a desired object (95) by a coordinate locator (88), after which the desired partial area (94 or 96) is selected on the basis of the coordinates, and the exposure direction is changed in relation to the first exposure in the horizontal plane and/or the vertical plane before executing the exposure program for the desired partial area (94 or 96). The apparatus in accordance with the invention comprises a coordinate locator (88) which provides for locating a desired detail (95) in the panoramic radiograph in relation to the coordinate system of the radiographic apparatus, and controllers (61, 65, 67) which steer the actuators of the radiographic apparatus in a manner which implements the recording of the desired detail. By the method, a desired detail of a radiograph can be recorded in several different projections for closer examinations.

摘要翻译： 一种用于患者牙列，颌骨和颅骨区域的放射照相记录的方法和装置，其将病人座位在患者座椅（9）中，从而将患者定位在放射线照相设备的坐标系中，位于明确的位置之前， 放射照片曝光（87）。 此外，根据本发明，射线照片（87）用于通过坐标定位器（88）测量期望对象（95）的坐标，之后基于该目标部分（94或96）选择期望的部分区域（94或96） 并且在执行用于期望的部分区域（94或96）的曝光程序之前相对于水平面和/或垂直平面中的第一曝光改变曝光方向。 根据本发明的装置包括坐标定位器（88），其提供相对于放射线照相设备的坐标系定位在全景X射线照片中的期望细节（95），以及控制器（61,65,67），其转向 放射线照相设备的致动器以实现所需细节的记录的方式。 通过该方法，可以将几张不同的投影记录放射线照片的期望细节以进行更紧密的检查。

公开(公告)号：US4691595A

公开(公告)日：1987-09-08

申请号：US794580

申请日：1985-11-04

申请人： Ilmari Kinanen ,  Sulo Ranne

发明人： Ilmari Kinanen ,  Sulo Ranne

IPC分类号： F16H13/04 ,  F16H13/08 ,  F16H13/06 ,  F16H13/10

CPC分类号： F16H13/06

摘要： A friction planetary transmission has a sun roller planetary roller and an elastically deformable outer periphery. The planetary rollers are attached to shafts which have a limited amount of radial movement. The outer periphery deforms to exert a frictional contact pressure on the planetary rollers such that a torque can be transmitted. The torque is adjustable by a circular disk which fits inside the outer periphery to regulate the amount of deformation. The circular disk can be moved axially to adjust the torque.

摘要翻译： 摩擦行星传动装置具有太阳辊行星辊和可弹性变形的外周。 行星辊连接到具有有限量的径向运动的轴。 外周变形以对行星辊施加摩擦接触压力，从而能够传递转矩。 扭矩可通过圆盘调节，该圆盘适合外周边调节变形量。 圆盘可以轴向移动以调节扭矩。

公开(公告)号：US4419764A

公开(公告)日：1983-12-06

申请号：US304160

申请日：1981-09-21

申请人： Ilmari Kinanen

发明人： Ilmari Kinanen

IPC分类号： A61B6/14 ,  G21K1/02

CPC分类号： G21K1/02

摘要： A slit collimator for use in a panoramic X-ray apparatus for the collimation of X-rays into a narrow fan-like beam. The collimation is achieved by means of a collimator slit formed in a trunion which is rotatable about its longitudinal axis and by rotating the trunion the effective radiation-penetrable size of the slit is varied.

摘要翻译： 一种用于将X射线准直成窄扇形光束的全景X射线装置的狭缝准直器。 准直是通过形成在可以围绕其纵向轴线旋转的团块中的准直器狭缝来实现的，并且通过旋转该组，该狭缝的有效辐射穿透尺寸是变化的。

公开(公告)号：US4123702A

公开(公告)日：1978-10-31

申请号：US835575

申请日：1977-09-22

申请人： Ilmari Kinanen ,  Jim Duncker

发明人： Ilmari Kinanen ,  Jim Duncker

IPC分类号： G01N22/00 ,  G01N33/46 ,  G01R27/26 ,  G01R27/04

CPC分类号： G01N22/00 ,  G01N33/46 ,  G01R27/2658

摘要： Lumber is classified in terms of knots. The method used employs high frequency radio energy and a detector responsive to phase to detect the energy passing through the lumber. The knots exhibit a different dielectric constant, the real part of which is different from normal wood, and the difference in phase of the radiation detected effects the measurement. Preferably, the frequency radiation is near 10 GHz.

摘要翻译： 木材按节划分。 所使用的方法使用高频无线电能量和响应于相位的检测器来检测通过木材的能量。 结表现出不同的介电常数，其实际部分与正常木材不同，所检测的辐射的相位差会影响测量。 优选地，频率辐射接近10GHz。