公开(公告)号：US20090198125A1

公开(公告)日：2009-08-06

申请号：US12363021

申请日：2009-01-30

Applicant: Koki NAKABAYASHI ,  Masahiro TOIDA ,  Kiichi KATO ,  Yutaka KOROGI ,  Tadashi MASUDA

Inventor： Koki NAKABAYASHI ,  Masahiro TOIDA ,  Kiichi KATO ,  Yutaka KOROGI ,  Tadashi MASUDA

IPC: A61B6/02 ,  A61B1/06 ,  A61B6/00

CPC classification number: A61B5/6852 ,  A61B5/0066

Abstract: An OCT optical probe to be inserted into a subject includes: a cylindrical sheath to be inserted into a subject; an optical fiber disposed in the internal space of the sheath; a rotatably-supporting portion fixed to the optical fiber in the vicinity of a distal end of the optical fiber; a distal optical system to deflect light emitted from the distal end of the optical fiber toward the subject; a holding portion to hold the distal optical system such that the optical system is rotatably supported by the rotatably-supporting portion; and a flexible shaft covering the optical fiber in the internal space, wherein the holding portion is fixed to a distal end of the flexible shaft. Using the OCT optical probe of the invention, the problem of degradation of measurement accuracy due to optical insertion loss and optical reflection loss at a rotary joint can be eliminated inexpensively and safely.

Abstract translation: 要插入到受试者中的OCT光学探针包括：插入到受试者中的圆柱形护套; 设置在护套的内部空间中的光纤; 在光纤的远端附近固定在光纤上的可转动支撑部; 远端光学系统，用于将从光纤的远端发射的光朝向被摄体偏转; 保持部，其保持所述远端光学系统，使得所述光学系统由所述可旋转支撑部可旋转地支撑; 以及在所述内部空间中覆盖所述光纤的柔性轴，其中所述保持部固定到所述柔性轴的远端。 使用本发明的OCT光学探针，可以廉价且安全地消除由于旋转接头处的光插入损耗和光反射损失引起的测量精度降低的问题。

公开(公告)号：US20100004544A1

公开(公告)日：2010-01-07

申请号：US12496375

申请日：2009-07-01

Applicant: Masahiro TOIDA

Inventor： Masahiro TOIDA

IPC: A61B6/00

CPC classification number: A61B5/6852 ,  A61B5/0066

Abstract: To enable OCT imaging inside a blood vessel without having to block blood flow, through the use of an optical tomographic imaging probe including: a tubular probe outer casing; an optical fiber disposed inside the probe outer casing in an axial direction of the probe outer casing; a plurality of transparent inflatable/deflatable split balloons provided circumferentially across an outer circumferential surface of a transparent portion of the probe outer casing, through which a light beam is to be emitted from the optical fiber towards an measurement object, so as to equally divide the circumferential direction; and a balloon inflating/deflating device that respectively and individually inflates/deflates each split balloon, images are captured by removing only blood from imaging areas without having to block blood flow, and a tomographic image of the entire circumference of the inner wall of the blood vessel is obtained by compositing the images.

Abstract translation: 为了在血管内部进行OCT成像而不必阻止血液流动，通过使用光学层析成像探针，包括：管状探针外壳; 光纤，其沿所述探针外壳的轴向设置在所述探针外壳的内部; 多个透明的可充气/可放气的分离气囊，沿圆周方向设置在探针外壳的透明部分的外圆周表面上，光束将通过该光束从光纤朝向测量对象发射，以便将 圆周方向 以及气囊充气/放气装置，其分别单独地对每个分割气囊进行充气/放气，通过从成像区域移除血液而不必阻挡血液流动而捕获图像，并且血液内壁的整个圆周的断层图像 通过合成图像获得容器。

公开(公告)号：US20090323080A1

公开(公告)日：2009-12-31

申请号：US12493544

申请日：2009-06-29

Applicant: Masahiro TOIDA

Inventor： Masahiro TOIDA

IPC: G01B9/02 ,  G01B11/02

CPC classification number: A61B5/6852 ,  A61B5/0066 ,  A61B5/0073 ,  G01N21/4795

Abstract: In an optical tomographic imaging apparatus, a wavelength of a light beam emitted from the light source is selected by a light source section filter, and the light beam emitted from the light source is split into a measurement light beam and a reference light beam. The measurement light beam is reflected from a measurement subject when the measurement light beam is irradiated, is amplified. A specific wavelength from the amplified reflected light beam is selected by an amplifying section filtering mechanism having a filter characteristic identical to a time variation characteristic of the light source section filter, and then the reflected light beam is multiplexed with the reference light beam. A tomographic image of the measurement subject is acquired from detection result of an interference light beam between the reflected light beam and the reference light beam which have been multiplexed.

Abstract translation: 在光学层析成像装置中，通过光源部滤波器选择从光源发射的光束的波长，从光源射出的光束被分割为测量光束和参考光束。 当照射测量光束时，测量光束从测量对象反射被放大。 通过具有与光源部滤波器的时间变化特性相同的滤波器特性的放大部分滤波机构来选择来自放大反射光束的特定波长，然后将反射光束与参考光束多路复用。 从被复用的反射光束和参考光束之间的干涉光束的检测结果获取测量对象的断层图像。

公开(公告)号：US20090244545A1

公开(公告)日：2009-10-01

申请号：US12411098

申请日：2009-03-25

Applicant: Masahiro TOIDA

Inventor： Masahiro TOIDA

IPC: G01B9/02 ,  G02B27/30

CPC classification number: G01B9/02027 ,  A61B5/0066 ,  A61B5/6852 ,  G01B9/02007 ,  G01B9/0205 ,  G01B9/02061 ,  G01B9/02091 ,  G01J1/0407 ,  G01J1/0422 ,  G02B6/32 ,  G02B6/3604

Abstract: An optical rotary adapter is featured by including: a fixed side optical fiber which is fixedly supported by a fixed sleeve and which has an end surface inclined with respect to a plane perpendicular to the optical axis of the optical fiber; a fixed side collimator lens which is arranged to be separated from the inclined end surface of the fixed side optical fiber by a predetermined interval; a rotation side optical fiber which is fixedly supported substantially at the center of a rotatably supported rotary cylinder, which is arranged to face the fixed side collimator lens, and which has an end surface inclined with respect to a plane perpendicular to the optical axis of the fixed side collimator lens; a rotation side collimator lens which is fixedly supported by the rotary cylinder, and which is arranged between the fixed side collimator lens and the rotation side optical fiber so as to be separated from the inclined end surface of the rotation side optical fiber by a predetermined interval; a second luminous flux optical fiber which guides a second luminous flux having a function different from that of a first luminous flux as a measuring light beam to the inside of the fixed sleeve; and a multiplexing device which is provided between the fixed side collimator lens and the rotation side collimator lens, and which multiplexes the first luminous flux with the second luminous flux.

Abstract translation: 光学旋转适配器的特征在于包括：固定侧光纤，其固定地由固定的套筒支撑，并且具有相对于垂直于光纤的光轴的平面倾斜的端面; 固定侧准直透镜，其被配置成与固定侧光纤的倾斜端面隔开预定间隔; 旋转侧光纤被固定地支撑在可旋转地支撑的旋转圆筒的中心，所述旋转侧光纤布置成面向固定侧准直透镜，并且具有相对于垂直于所述固定侧准直透镜的光轴倾斜的端面 固定侧准直透镜; 旋转侧准直透镜，其由旋转圆筒固定地支撑，并且设置在固定侧准直透镜和旋转侧光纤之间，以与旋转侧光纤的倾斜端面分开预定间隔 ; 第二光束光纤，其将具有与作为测量光束的第一光束的功能不同的功能的第二光束引导到固定套筒的内部; 以及设置在固定侧准直透镜和旋转侧准直透镜之间并将第一光束与第二光束复用的多路复用装置。