MITAKA KOHKI Co.

Mitaka-shi, Japan

MITAKA KOHKI Co.

Mitaka-shi, Japan
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Patent
Mitaka Kohki Co. | Date: 2016-11-22

A surgical stereoscopic observation apparatus includes an objective optical system having an optical axis and emits two focusing beams in parallel with the optical axis toward the objective optical system. If a focal point of the objective optical system agrees with a surgical field, the two focusing beams converge to a single spot on the surgical field, and if disagrees with the surgical field, form two spots on the surgical field. According to the state of the spots, it is possible to quickly determine with naked eye or on a monitor whether or not the focal point is on the surgical field.


Patent
Mitaka Kohki Co. | Date: 2016-08-05

A surgical stereoscopic observation apparatus has a pair of main optical paths A and a pair of secondary optical paths B, an aligning direction of the paths B differing by 90 degrees from that of the paths A. The main and secondary optical paths involve imaging elements D1 and D2, respectively. This apparatus is able to provide not only electronic images oriented for a main operator and an assistant positioned opposite to the main operator but also electronic images orientated for an assistant positioned on the left or right side of the main operator, thereby allowing the main operator and assistants to cooperatively conduct an operation.


Patent
Mitaka Kohki Co. | Date: 2016-06-01

A tool holding articulated arm 1 has articulations 4 each holding a ball 6 between a presser 11 and a front opening 8 of a housing 7. With small acting force of the presser 11, a strong fixing force is obtained at each articulation 4. The presser 11 has a cup shape whose circumferential edge e comes into linear contact with the surface of the ball 6 to exert a strong holding force on the surface of the ball 6.


Patent
Mitaka Kohki Co. | Date: 2014-02-26

When the compression spring is compressed due to the relative displacement of the stopper which occurs in response to the tilt angle of the arm structure, the compression spring is compressed by the small relative displacement of the stopper over its entire body in the longitudinal direction, so that a repulsive force is obtained which varies little over the entire range of the tilt angle, enabling support of the heavy object in a stable condition.


Patent
Mitaka Kohki Co. | Date: 2016-03-22

A medical stand apparatus includes a cylindrical lower arm that accommodates an upper arm divided into sections, so that only the lower arm is visible from the outside and so that a drape can tightly be fastened to the lower arm. The upper arm sections are connected to each other through a shaft that is guided along an arc groove of a bracket. This configuration is beneficial to reduce a diameter of the lower arm when the upper and lower arms are curved.


Patent
Mitaka Kohki Co. | Date: 2014-02-25

A surgical microscope system includes a camera 9 that is turnable around an optical axis K of the camera 9 to optionally select a photographing orientation. The camera 9 is able to pick up an electronic image of an affected part T in an orientation in which a main doctor sees the affected part T, or in an orientation in which an assistant, who is present at a different position from the main doctor, sees the affected part T, or in any other orientation. The electronic image picked up by the camera 9 in a selected orientation is stereoscopically observable with an electronic image display unit 2.


Patent
Mitaka Kohki Co. | Date: 2016-06-03

A surgical stereoscopic observation apparatus defines main optical paths and secondary optical paths that are branched from the main optical paths A and run to a pair of fluorescence imaging elements. The apparatus picks up both visible-light images and fluorescence images, displays the images on an electronic image display unit, and allows an observer to stereoscopically observe the displayed images.


Patent
Fuji Systems Corporation and Mitaka Kohki Co. | Date: 2014-02-25

A microdrape 10 covers a surgical microscope system 60 including a surgical microscope 61 and a pair of binoculars 62 independently supported by an arm structure 64. The microdrape 10 has an opening end 6 and a closed end opposite to the opening end 6. The microdrape 10 includes: a cylindrical bag shaped main body 10a having the opening end 6; a first cylindrical bag 1 connected to the main body, 10a wherein the first cylindrical bag 1 has a hood for covering a lens tube of an objective lens 61a of the surgical microscope 61 and projecting portions 9a, 9b for covering lens tubes of eyeglasses 61b of the surgical microscope 61; and a second cylindrical bag 2 connected to the main body 10a, where the second cylindrical bag 2 has projecting portions 9c, 9d for covering lens tubes of eyeglasses 62a of the binoculars 62. A slit 5 is formed between the first cylindrical bag 1 and the second cylindrical bag 2. The microdrape can cover the surgical microscope 61, the binoculars 62 and the arm structure 64 without interfering with movement of the arm structure 64.


Patent
Mitaka Kohki Co. | Date: 2015-04-17

A surgical microscope system includes a camera that is rotatable around a first rotation axis and a second rotation axis, the rotation axes being orthogonal to each other, so that a photographing direction of the camera is changeable at a given position. The first rotation axis is inclined with respect to a vertical axis, and therefore, a lower end of a first member is able to be set at a height that does not interfere with the photographing direction when the camera is horizontally oriented.


Patent
Mitaka Kohki Co. | Date: 2015-10-28

A tool holding articulated arm has articulations each holding a ball between a presser and a front opening of a housing. With small acting force of the presser, a strong fixing force is obtained at each articulation. The presser has a cup shape whose circumferential edge comes into linear contact with the surface of the ball to exert a strong holding force on the surface of the ball.

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