JP2012095799A - Surgical operation microscopic system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a surgical operation microscopic system enabling an assistant to freely observe a binocular assistant microscope, irrespective of the movement of a surgical operation microscope.SOLUTION: A branch optical path B branched and taken out from the surgical operation microscope 4 is imaged with a camera 18, and an electronic video image picked up with the camera 18 is displayed on a display panel 26 of the binocular assistant microscope 5 supported differently from the surgical operation microscope 4 so that the video image can be observed. With this configuration, even if a doctor D1 moves the surgical operation microscope 4, the binocular assistant microscope 5 never moves. Thus, the doctor D1 and the assistant D2 can freely operate the surgical operation microscope 4 and the binocular assistant microscope 5, respectively.

Description

  The present invention relates to a surgical microscope system.

  In addition to the eyepiece portion observed by the doctor, an assistant mirror observed by the assistant may be attached to the surgical microscope. The assistant can use the assistant mirror to observe the same surgical site as the doctor and assist the doctor in performing surgery. The assistant mirror is attached to the surgical microscope, and has a structure that allows observation by branching and introducing a part of the light beam in the surgical microscope. In addition, there are monocular and binocular assistant mirrors, but binocular is widely used because binocular is easier to observe and eyes are not tired (see, for example, Patent Document 1).

JP 2010-46118 A

  However, in such a conventional technique, since the binocular assistant mirror is integrally attached to the surgical microscope, when the doctor moves the surgical microscope, the binocular assistant mirror also moves together. Therefore, the assistant must always care about the operation of the surgical microscope by the doctor. The doctor had to operate the surgical microscope while paying attention to the observation status of the assistant.

  The present invention has been made paying attention to such a conventional technique, and an object of the present invention is to provide a surgical microscope system in which an assistant can freely observe a binocular assistant mirror separately from the movement of the surgical microscope. Yes.

  The invention according to claim 1 is provided with two normal optical paths for guiding a pair of left and right light beams that have passed through the objective optical system and the zoom optical system to the left and right eyepieces, and the normal optical path provided in one of the normal optical paths. A surgical microscope having an optical branching unit that branches a part of the optical beam to form one branching optical path, a light splitting unit that splits the splitting optical path into two parallel light beams, and the light splitting unit An image pickup means for picking up the same electronic image by introducing a parallel light beam, and an electronic image that can be displayed on and displayed on a camera attached to a surgical microscope and a pair of left and right built-in display panels Can be observed with both eyes from a pair of eyepieces, and is provided with a binocular assistant mirror supported at a position distant from the surgical microscope.

  The invention described in claim 2 is characterized in that imaging is performed by introducing two parallel light beams with one imaging means.

  The invention described in claim 3 is characterized in that two parallel light beams are respectively introduced and imaged by two imaging means.

  The invention according to claim 4 is characterized in that the surgical microscope is suspended and supported from the tip of a support arm extending in the lateral direction of the stand device, and the binocular assistant mirror is supported by being suspended through a partial auxiliary arm of the stand device. And

  According to the first aspect of the present invention, the branch optical path branched out from the surgical microscope is imaged by the camera, and the electronic image captured by the camera is displayed on the display panel of the binocular assistant mirror supported separately from the surgical microscope. The binocular assistant mirror does not move even if the doctor moves the surgical microscope because it can be displayed and observed. Therefore, the doctor and the assistant can freely operate the surgical microscope and the binocular assistant mirror, respectively, and the operability of both is improved.

  According to the second aspect of the present invention, since two parallel light beams taken out from the surgical microscope and divided are picked up by one image pickup means, one image pickup means is sufficient, which is advantageous in terms of cost.

  According to the third aspect of the present invention, since the two parallel light beams are introduced into the corresponding two imaging means as they are for imaging, the optical elements for introducing the two parallel light beams into the imaging means are simplified. can do.

  According to the invention described in claim 4, since the binocular assistant mirror is supported together with the surgical microscope at the tip of the stand device, a dedicated stand for supporting the binocular assistant mirror is not required, and a space around the surgical microscope is saved. Can be widely used.

1 is a perspective view showing a surgical microscope system according to a first embodiment of the present invention. The perspective view which shows a surgical microscope. Sectional drawing which shows the internal structure of a surgical microscope. The perspective view which shows the internal structure of a surgical microscope. Sectional drawing which shows the internal structure of a camera. Sectional drawing which shows the internal structure of a binocular assistant mirror. Sectional drawing which shows the internal structure of the camera which concerns on 2nd Embodiment of this invention.

(First embodiment)
1-6 is a figure which shows 1st Embodiment of this invention.

  A suspension arm 3 bent in a substantially U-shape is attached to the distal end 2 of a support arm 1 that extends in the lateral direction of a stand device (not shown) installed in the operating room, and is attached to the lower end of the suspension arm 3. The surgical microscope 4 for the doctor D1 is suspended and supported.

  A binocular assistant mirror 5 for the assistant D2 positioned on the right side of the doctor D1 is suspended and supported by a holding arm 6 that similarly extends from the distal end 2 on the right side of the surgical microscope 4.

  Next, the structure of the surgical microscope 4 will be described.

  The surgical microscope 4 has a structure capable of stereoscopic observation, and therefore two normal optical paths A on the left and right sides are defined inside. A light beam inlet 7 is formed at the lower part of the surgical microscope 4, and a lens group as the objective optical system 8 is provided in the vertical direction above the light beam inlet 7. A prism 9 is provided above the objective optical system 8, and a lens group as a zoom optical system 10 that is horizontal from the prism 9 to the rear is provided.

  Two prisms 11 and 12 are provided above and below the zoom optical system 10, and the normal optical path A is directed upward by the prisms 11 and 12 and then folded forward. The normal optical path A folded upward is guided to the eyepiece 15 including the eyepiece 14 and the like after passing through the imaging lens 13, from which the doctor D1 can observe stereoscopically.

  In the middle of the upper two normal optical paths A, beam splitters (light branching means) 16 are provided on both sides. By this beam splitter 16, a part of the normal optical path A becomes a branched optical path B branched at right angles to the left and right sides. This branched optical path B can be taken out from the light beam take-out portions 17 provided on the left and right sides of the surgical microscope 4. In this embodiment, only the light flux extraction unit 17 on the right side is used, and the opposite side is closed. A camera (two-dimensional imaging device) 18 is attached to the right light beam extraction unit 17.

  Next, the structure of the camera 18 will be described (see FIG. 5).

  Inside the camera 18, there are provided a slit plate 19, a pair of right and left prisms 20 and 21 having a parallelogram cross section, and a relay lens 22 positioned between the prisms 20 and 21, thereby dividing the light. Is configured.

  A pair of left and right holes 23 are formed in the slit plate 19, and the branched optical path B branched from the beam splitter 16 in the surgical microscope 4 is divided into two parallel light beams L. The parallel light beam L is widened by the first prism 20 to secure a space for providing the relay lens 22. The parallel light beam L is narrowed by the next prism 21 and introduced into one CCD image pickup device (image pickup means) 24. This CCD image pickup device 24 is a high-vision camera having one CCD image pickup device, has an aspect ratio of 9:16, and can simultaneously introduce two parallel light beams L to pick up two identical images. The captured electronic video signal is output to the binocular assistant mirror 5.

  The binocular assistant mirror 5 includes a pair of left and right display panels 26 inside the case 25. The display panel 26 is a horizontally long liquid crystal screen having an aspect ratio of 9:16, which is divided into two left and right screens. A partition wall 27 is provided inside the case 25 to partition the space left and right. A pair of left and right eyepieces 28 are provided on the opposite side of the display panel 26 in the case 25.

  A signal output from the camera 18 is introduced into the display panel 26 and the same electronic image corresponding to the two parallel light beams L is displayed. By viewing the same electronic image with both eyes via the eyepiece 28, the assistant D2 can observe a brighter and clearer image of the surgical site than the monocular system. Since two electronic images can be simultaneously picked up by the image pickup device 24 using one CCD image pickup device, it is advantageous in terms of cost compared with the case of using two CCD image pickup devices, as in the case of using two CCD image pickup devices. In addition, it is not necessary to adjust the sensitivity between the CCDs, and the camera 18 can be easily adjusted.

  According to this embodiment, since the binocular assistant mirror 5 observed by the assistant D2 is supported separately from the surgical microscope 4, the binocular assistant mirror 5 does not move even if the doctor D1 moves the surgical microscope 4. Therefore, the doctor D1 and the assistant D2 can freely operate the surgical microscope 4 and the binocular assistant mirror 5, respectively, and the operability of both is improved.

  Further, the binocular assistant mirror 5 is not supported on the floor but is suspended and supported by the holding arm 6 from the tip of the stand device in the same manner as the operation microscope 4, so that the space around the operation microscope 4 is widely used. can do.

(Second Embodiment)
FIG. 7 is a diagram showing a second embodiment of the present invention. This embodiment includes the same components as those in the first embodiment. Therefore, the same constituent elements are denoted by common reference numerals, and redundant description is omitted.

  In this embodiment, the internal structure of the camera 29 is changed, and the parallel light beam L whose width is expanded by the first prism 20 is directly introduced into the two CCD image pickup devices 30 to pick up an electronic image. Is. The CCD image pickup device 30 used here is not for high vision but of a normal size. Although two CCD image pickup devices 30 (CCD image pickup devices) are required, since only one prism 20 is required, the optical system inside the camera 29 can be simplified.

  In the above embodiment, the binocular assistant mirror 5 is supported on the right side of the surgical microscope 4 like the camera 18. However, the position of the binocular assistant mirror 5 may be supported at any position regardless of the camera 18. 4 may be on the left side of FIG.

  Further, the binocular assistant mirror 5 is not only used for the assistant D2, but may be installed in a place different from the operating room so that nurses, residents, etc. can see it for learning.

  Further, the display panel 26 of the binocular assistant mirror 5 may be either a transmissive liquid crystal or a reflective liquid crystal. Moreover, it may not be a liquid crystal.

DESCRIPTION OF SYMBOLS 1 Support arm 2 Tip 4 Operation microscope 5 Binocular assistant mirror 6 Holding arm 8 Objective lens means 10 Zoom optical system 15 Eyepiece part 16 Beam splitter (light splitting means)
18, 29 Camera 19 Slit (light splitting means)
20, 21 Prism (light splitting means)
22 Relay lens (light splitting means)
24, 30 CCD imaging device (imaging means)
26 Display panel A Normal optical path B Branch optical path L Parallel beam D1 Doctor D2 Assistant

Claims (4)

Two normal optical paths that guide a pair of left and right light beams that have passed through the objective optical system and the zoom optical system to the left and right eyepieces, and one part of the normal optical path is branched to 1 A surgical microscope having a light branching means for forming a branching light path of the book;
A light splitting means for splitting the branched optical path into two parallel light fluxes and an imaging means for picking up the same electronic image by introducing the parallel light flux split by the light splitting means, and is attached to a surgical microscope A camera,
A binocular assistant that can display electronic images on a pair of left and right built-in display panels, and can display the displayed electronic images with both eyes from a pair of eyepieces, and is supported at a position away from the surgical microscope A surgical microscope system characterized by comprising a mirror.   The surgical microscope system according to claim 1, wherein the imaging is performed by introducing two parallel light beams with one imaging unit.   2. The surgical microscope system according to claim 1, wherein two imaging means are used to introduce and image two parallel light beams, respectively.   2. The binocular assistant mirror is suspended and supported through a partial auxiliary arm of the stand device while the surgical microscope is suspended and supported from the tip of a support arm extending in the lateral direction of the stand device. 2. The surgical microscope system according to 2.

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