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WO2017111246A1 - Laparoscope monoculaire permettant de capturer une image stéréoscopique - Google Patents

Laparoscope monoculaire permettant de capturer une image stéréoscopique Download PDF

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Publication number
WO2017111246A1
WO2017111246A1 PCT/KR2016/008352 KR2016008352W WO2017111246A1 WO 2017111246 A1 WO2017111246 A1 WO 2017111246A1 KR 2016008352 W KR2016008352 W KR 2016008352W WO 2017111246 A1 WO2017111246 A1 WO 2017111246A1
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Prior art keywords
imaging lens
lens assembly
half mirror
light
monocular
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PCT/KR2016/008352
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English (en)
Korean (ko)
Inventor
표도연
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Yeon Systems Co Ltd
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Yeon Systems Co Ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/313—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes

Definitions

  • the present invention relates to a monocular laparoscope for photographing stereoscopic images, and to a monocular laparoscope inserted into an abdominal cavity to obtain stereoscopic images of organs.
  • Laparoscopy is an endoscope used to diagnose or operate organs such as the spleen, colon, stomach, kidney, pancreas, and ovaries with minimal invasion. Compared with the traditional open surgery to incise the abdomen, laparoscopic surgery leaves only a small hole of 0.5 ⁇ 1.5cm in size, so it has less pain and sequelae due to the wound, and it is favored cosmetically because of the small wound area. .
  • Laparoscopy which is currently used in laparoscopic surgery, mostly acquires 2D images of organs in real time and displays them on a display.
  • a method of mounting a three-dimensional camera for acquiring a three-dimensional image in a laparoscope may be considered.
  • a stereoscopic camera acquires a left eye image and a right eye image of a subject simultaneously using two cameras.
  • a typical stereoscopic camera includes a left eye camera that acquires a left eye image of a subject, a right eye camera that acquires a right eye image of a subject, It includes a stereo camera rig that mounts a left eye camera and a right eye camera.
  • Stereo camera rigs are largely divided into parallel (horizontal) and orthogonal.
  • the parallel stereoscopic camera rig mounts the left eye camera and the right eye camera at a predetermined distance apart from each other so as to be parallel to each other toward the subject, and the left eye camera and the right eye camera receive the light of the subject, respectively, and the difference between these images (hereinafter, referred to as binocular parallax).
  • binocular parallax the difference between these images
  • a minimum distance must be secured between a lens mounted on the two cameras and the subject. This is because there is a separation distance between the lenses mounted on the two cameras.
  • the minimum distance between the lens and the subject should be at least 30 times the distance between the lens midpoints of the two cameras so that the subject is away from the lens.
  • the laparoscope is inserted into the abdominal cavity and in most cases cannot maintain the minimum distance from the organ, so the perspective is not secured, so even if the stereoscopic image cannot be obtained or acquired, the stereoscopic feeling is excessively expressed, which gives the viewer extreme fatigue. This inaccurate stereoscopic image adversely affects a doctor undergoing laparoscopic surgery for a long time.
  • stereoscopic cameras in which stereoscopic images are separately acquired using two lenses are limited to use as laparoscopes.
  • the present applicant has already proposed a monocular stereoscopic camera capable of obtaining a clear stereoscopic image even when using a single main lens (monocular lens) by improving a stereoscopic camera using two lenses in Korean Patent Publication No. 10-1255803. I've done it.
  • the monocular stereoscopic camera of FIG. 1 is an internal configuration of a conventional monocular stereoscopic camera presented in the Republic of Korea Patent Publication. Specifically, the monocular stereoscopic camera of FIG. 1 separates the light obtained through the first imaging lens assembly 40 into the left eye camera 60 and the right eye camera 62 through the reflector 46, respectively. Is obtained. That is, it is a monocular stereoscopic camera having one main lens (first imaging lens assembly).
  • the technique to adjust the angle of view according to the magnification / reduction magnification is essential to realize the super close-up stereoscopic image through the laparoscope.
  • the first imaging lens assembly should be easy to be replaced or changed according to the position and the characteristic of the located subject.
  • a technique for realizing a shadowless illumination that irradiates the subject with light inside the abdominal cavity and prevents shadows is added. Should be.
  • the present invention has been proposed to solve the above problems, and an object of the present invention is to provide a monocular laparoscope for capturing stereoscopic images of organs in a super close proximity to the lens in the abdominal cavity.
  • Still another object of the present invention is to provide a monocular laparoscope capable of adjusting the angle of view according to an enlargement / reduction ratio of a subject, easily replacing and changing the first imaging lens assembly, and realizing a lightless illumination inside the abdominal cavity.
  • the monocular laparoscope comprises a first imaging lens assembly (10); A half mirror (H) for reflecting some of the light rays passing through the first imaging lens assembly (10) and passing the remaining light rays;
  • the focal position of the third imaging lens assembly is pulled forward, the virtual image formed on the back of the first imaging lens assembly 10 is enlarged, and chromatic aberration or image curvature is reduced.
  • a first camera 30 comprising a third imaging lens assembly 31 for imaging the light rays reflected by the half mirror H;
  • a second camera 40 including a third imaging lens assembly 41 for forming a light beam passing through the half mirror H.
  • the third imaging lens assembly 31 and 41 may be disposed to be perpendicular to each other, and the third imaging lens assembly 31 and 41 may be formed to have an acute angle of less than 90 ° or an obtuse angle of greater than 90 °. It can be arranged freely.
  • the second imaging lens assembly 20, 21, 22 is installed between the first imaging lens assembly 10 and the half mirror H, or the half mirror H and the third imaging lens assembly 31 ( 41) can be installed between.
  • a second imaging lens assembly may be selectively provided. That is, when the third imaging lens assembly 31 or 41 is a macro lens having a magnification function such that the virtual image behind the first imaging lens assembly can be sufficiently enlarged and photographed so that there is no vignetting phenomenon. An imaging lens assembly may not be provided.
  • the macro imaging lens and the second imaging lens assembly may be combined together to close-up the image passing through the first imaging lens assembly. Play the same role.
  • the magnification at this time is the size of the virtual image formed on the back of the first imaging lens assembly 10, the size of the imaging surfaces 36 and 46 installed on the cameras 30 and 40, and the length of the entire system (first imaging lens assembly). The total length of the optical path from the optical path to the imaging plane).
  • Monocular laparoscope according to the present invention comprises a first imaging lens assembly (10); A half mirror (H) for reflecting some of the light rays passing through the first imaging lens assembly (10) and passing the remaining light rays; At least one of the light reflected by the half mirror H and the light passing through the half mirror H is parallel so that the light reflected by the half mirror H and the light passing through the half mirror H are parallel to each other.
  • the second imaging lens assembly may be installed between the first imaging lens assembly 10 and the half mirror H, or may be installed between the half mirror H and the third imaging lens assembly 341 and 331.
  • the second imaging lens assembly may or may not be provided.
  • the third imaging lens assembly 341 and 331 may be combined with the second imaging lens assembly to serve as a macro lens, thereby providing a first imaging lens. Allows final magnification of the image passing through the assembly.
  • the third imaging lens assemblies 341 and 331 may be installed in the same camera body 350 or may be installed in each camera body.
  • the monocular laparoscope according to the present invention includes an adapter unit 510 and 610 on which a first imaging lens assembly 10 is mounted and at least a part of which is inserted into the abdominal cavity; Half mirror H; It includes a body portion 520 for mounting the first camera 30 and the second camera 40.
  • the body portion 520 may further include at least one second imaging lens assembly 20.
  • the adapter parts 510 and 610 may have an inner barrel 50 on which the first imaging lens assembly 10 is mounted, and a ring shape corresponding to an outer surface of the inner barrel 50 and may transmit light to a subject.
  • the body parts 520 and 620 may include a light supply device 70 for supplying light to the outer barrel 60.
  • the outer surface of the inner barrel 50 and the inner surface of the outer barrel 60 may be coated with a reflective material for reflecting light.
  • the monocular laparoscope according to the present invention has the following effects.
  • a stereoscopic image of a subject in a super near position with the first imaging lens assembly may be photographed.
  • FIG. 1 is a block diagram of a conventional monocular stereoscopic camera.
  • FIG 2 is an internal configuration diagram showing an optical configuration mounted on the monocular laparoscope according to the first embodiment of the present invention.
  • 3 to 5 are schematic views for explaining the role of the second imaging lens assembly provided in the present invention.
  • FIG 6 is an internal configuration diagram showing an optical configuration mounted on the monocular laparoscope according to the second embodiment of the present invention.
  • FIG 7 is an internal configuration diagram showing an optical configuration mounted on the monocular laparoscope according to the third embodiment of the present invention.
  • FIG 8 is an internal configuration diagram showing an optical configuration mounted on the monocular laparoscope according to the fourth embodiment of the present invention.
  • FIG. 9 is a cross-sectional view of the monocular laparoscope according to the fifth embodiment of the present invention equipped with the optical configuration shown in FIG. 2.
  • FIG. 10 is a cross-sectional view of the monocular laparoscope according to the sixth embodiment of the present invention equipped with the optical configuration shown in FIG.
  • the monocular laparoscope inserted into the abdominal cavity according to the present invention for capturing stereoscopic images may include the first imaging lens assembly 10, the half mirror H, the first camera 30, and 2 camera 40 is included.
  • the optical structure mounted inside the monocular laparoscope of the present invention will be described first, and then the mechanical configuration will be described.
  • the 'imaging lens assembly' described below includes an aggregate in which one or two or more lenses are combined.
  • FIG 2 is an internal configuration diagram showing an optical configuration mounted on the monocular laparoscope according to the first embodiment of the present invention.
  • the monocular laparoscope 100 is a monocular orthogonal league, which may be installed so that the first camera 30 and the second camera 40 are perpendicular to each other, and the first camera 30
  • the second camera 40 may be freely installed to form an acute angle of less than 90 ° or an obtuse angle of greater than 90 °.
  • the stereoscopic camera 100 includes a first imaging lens assembly 10, a second imaging lens assembly 20 installed at the rear of the first imaging lens assembly 10, a half mirror H, and a half mirror.
  • the 1st camera 30 provided on the optical axis reflected by (H), and the 2nd camera 40 provided on the optical axis which passed through the half mirror H are included.
  • the first imaging lens assembly 10 converges the light incident from the subject 8.
  • the first imaging lens assembly 10 may be installed to be interchangeable, and a suitable lens may be selected and installed in consideration of the photographing purpose, the type of the subject, the distance to the subject, and the like.
  • the monocular laparoscope 100 may further include a second imaging lens assembly 20.
  • the second imaging lens assembly 20 may be additionally mounted in combination with the third imaging lens assembly 31 and 41 to close a focus position and to reduce chromatic aberration and image curvature.
  • the sub-focus is installed to move back and forth on the optical axis connecting the half mirror H and the first imaging lens assembly 10 so that the subject can focus on a subject beyond the focal range of the first imaging lens assembly 10 during shooting. Can act as a moderator
  • the second imaging lens assembly 20 is moved in the direction of the third imaging lens assemblies 31 and 41 to be in close proximity.
  • the second imaging lens assembly 20 may move in the direction of the first imaging lens assembly 10 when the subject may be focused and the main subject is far away from the focus adjustment range of the first imaging lens assembly 10. This allows you to focus on a distant subject out of focus.
  • the second imaging lens assembly 20 is a stereoscopic image of organs, blood vessels, nerves, and the like, which are partially invaded into the abdominal cavity by the monocular laparoscope 100 of the present invention and are present in the super near position with the first imaging lens assembly 10. To shoot.
  • the second imaging lens assembly 20 enables to precisely adjust the angle of view according to the magnification by enlarging and reducing the subject beyond the focal limit of the first imaging lens assembly 10.
  • the super close position indicates that the distance between the first imaging lens assembly 10 and the subject is less than 10 cm, and the monocular laparoscope 100 of the present invention can acquire a stereoscopic image even in an environment where the super close position is less than 1 cm. .
  • the first camera 30 includes a third imaging lens assembly 31 and a camera body 35.
  • the second camera 40 includes a third imaging lens assembly 41 and a camera body 45. Imaging surfaces 36 and 46 are provided inside the camera bodies 35 and 45, respectively.
  • the third imaging lens assembly 31 forms light reflected by the half mirror H, and the third imaging lens assembly 41 forms light passing through the half mirror H.
  • the third imaging lens assembly 31 and 41 may be a base lens, and a macro lens capable of close-up magnification may be used. When the magnification is sufficient using a macro lens for the third imaging lens assemblies 31 and 41, the second imaging lens assembly 20 may be excluded. When the third imaging lens assembly 31 or 41 is used as a macro lens, a stereoscopic image of an organ or the like existing in the super close-up position with the first imaging lens 10 may be photographed, and the first imaging lens assembly 10 may be photographed. You can precisely adjust the angle of view according to the magnification by enlarging or reducing the subject located beyond the focus limit of.
  • the third imaging lens assembly 31 and 41 may be combined with the second imaging lens assembly 20 to serve as a macro lens. Done.
  • the monocular laparoscope of the present invention can acquire stereoscopic images of fine blood vessels, muscles, nerves, and the like.
  • a virtual image formed at the rear of the first imaging lens assembly 10 may be used as the second imaging lens assembly 20 and the third imaging lens assembly 31. It is preferable that the photographing is enlarged using (41).
  • the third imaging lens assembly ( 31) (41) by using a telephoto-based lens and the second imaging lens assembly 20 together to enable close-up photography to enlarge the image of the first imaging lens assembly 10, or the third imaging lens Using the lens of the macro series (lens capable of close-up magnification) as the assembly 31, 41, and further using the second imaging lens assembly 20 to bring the focus position closer to the second imaging lens assembly ( By having 20) have a function of correcting chromatic aberration and image curvature, the virtual image made behind the first imaging lens assembly 10 can be enlarged and photographed.
  • the third imaging lens assembly 31 and 41 is formed.
  • a so-called vignetting phenomenon in which the peripheral portion of the image is blurred black due to a decrease in the amount of light around the camera lens can be reduced, and the choice of the first imaging lens assembly 10 can be expanded.
  • the camera imaging surface 36 is provided from the first imaging lens assembly 10 as compared with the case of using a telephoto lens. It is possible to reduce the size of the monocular laparoscope up to (46).
  • a higher magnification (lens with a short focal length of the lens) may be used for the second imaging lens assembly 20, but a method of increasing the magnification of the second imaging lens assembly 20 may be used.
  • a lens capable of close-up magnification for the third imaging lens assemblies 31 and 41 By using a lens capable of close-up magnification for the third imaging lens assemblies 31 and 41, a result with less distortion and higher image quality can be obtained.
  • the monocular laparoscope according to the present invention may further include apertures 32 and 42.
  • the apertures 32 and 42 may be installed in the third imaging lens assembly 31 and 41, respectively, and may not be installed in the first imaging lens assembly 10. Even when the aperture-mounted lens is used as the first imaging lens assembly 10, the aperture provided in the first imaging lens assembly 10 is photographed in an open state.
  • the apertures 32 and 42 of the third imaging lens assembly 31 and 41 prevent vignetting.
  • the second imaging lens assembly 20 when the magnification is sufficient by using a macro lens for the third imaging lens assembly 31 and 41, the second imaging lens assembly 20 may be excluded and the third imaging lens may be excluded.
  • the third imaging lens assembly 31 and 41 and the second imaging lens assembly 20 are combined to serve as macro lenses. In this regard, the function of the second imaging lens assembly 20 will be described with reference to FIGS. 3 to 5.
  • 3 to 5 illustrate a case in which the half mirror H and the first camera 30 are not provided, for example, to specifically describe a difference between when the second imaging lens assembly 20 is installed and when it is not installed.
  • FIG. 3 illustrates a case where the second imaging lens assembly 20 is installed
  • FIG. 4 illustrates a case where the second imaging lens assembly 20 is not installed.
  • the second imaging lens assembly 20 serves to pull the focal position of the third imaging lens assembly 41 forward, that is, to move the focal position of the third imaging lens assembly 41 to the right side of the drawing. It is possible to reduce the length (the length from the first imaging lens assembly 10 to the imaging surface 46) (so that the position of the first imaging lens assembly can be moved to the right side of the drawing).
  • the focal position of the third imaging lens assembly 41 should be the position of the virtual image 9 of the first imaging lens assembly 10
  • a lens eg, a macro that is manufactured to allow close-up photography
  • Lens as the third imaging lens assembly 41, or when using a general telephoto lens (a lens having a general focusing position value), the third imaging lens assembly 20 is used together. The effect of advancing the focal position of the lens assembly 41 can be brought.
  • FIG. 4 if a normal image comes out, in FIG. 4, a normal image is not formed because the focal position of the third imaging lens assembly 41 and the position of the virtual image 9 of the first imaging lens assembly 10 do not match. Do not. In this case, as shown in FIG. 5, the position of the first imaging lens assembly 10 should be located farther from the third imaging lens assembly 41. In this case, the peripheral portion of the image is blackened due to the decrease in the amount of light around the camera lens. There is a problem that the so-called vignetting phenomenon is blurred.
  • FIG 6 is an internal configuration diagram showing an optical configuration mounted on the monocular laparoscope according to the second embodiment of the present invention.
  • the monocular laparoscope 200 is a monocular orthogonal league, which may be installed such that the first camera 30 and the second camera 40 are perpendicular to each other, and the first camera 30.
  • the second camera 40 may be freely installed to form an acute angle of less than 90 ° or an obtuse angle of greater than 90 °.
  • the stereoscopic camera 200 includes the first imaging lens assembly 10, the second imaging lens assembly 21 and 22 installed at the rear of the first imaging lens assembly 10, the half mirror H, And a first camera 30 provided on the optical axis reflected by the half mirror H, and a second camera 40 provided on the optical axis passing through the half mirror H.
  • the second imaging lens assembly 21, 22 is a half mirror (H) and the third There is a difference in the points disposed between the imaging lens assemblies 31 and 41, respectively. Therefore, in the monocular laparoscope 200 according to the second embodiment, the light reflected by the half mirror H passes through the second imaging lens assembly 21 and then enters the third imaging lens assembly 31. The light passing through the half mirror H is incident on the third imaging lens assembly 41 after passing through the second imaging lens assembly 22.
  • a macro lens or a telephoto lens may be used for the third imaging lens assembly 31, 41, or a macro lens is used for the third imaging lens assembly 31, 41.
  • the second imaging lens assembly (21, 22) can be excluded, the third imaging lens assembly (31) (41) when the telephoto lens is used in the third imaging lens assembly (31) (41) And the second imaging lens assembly 21, 22 may be combined to close the focal position, and the like, as described in the monocular laparoscope 100 of the first embodiment.
  • the monocular laparoscope 200 of the second embodiment unlike the monocular laparoscope 100 of the first embodiment, does not have a device for moving the second imaging lens assembly 21, 22 from time to time along the optical axis. This is preferable because the time loss required to individually adjust the focus of both the left and right eyes is greater than the gain due to the expansion of the focal range obtained by moving the second imaging lens assembly 21, 22 from time to time.
  • FIG 7 is an internal configuration diagram showing an optical configuration mounted on the monocular laparoscope according to the third embodiment of the present invention.
  • the monocular laparoscope according to the third embodiment of the present invention described below uses the same name for the same configuration as the monocular laparoscope described in the first embodiment, all except the arrangement relationship should be interpreted as having the same meaning. .
  • the monocular laparoscope 300 is a monocular horizontal rig, and has a half mirror H installed at the rear of the first imaging lens assembly 10 and the first imaging lens assembly 10. ), Reflectors 361, 363, 365, and second imaging lens assemblies 21, 22.
  • the reflection parts 361, 363, 365 are the light reflected by the half mirror H and the half mirror H so that the light reflected by the half mirror H and the light passing through the half mirror H are parallel to each other. Reflect at least one of the light passing through).
  • FIG. 7 illustrates an example of the reflector, wherein the reflectors 361, 363 and 365 reflect the light passing through the half mirror H toward the third imaging lens assembly 331. ) And a reflector 361 reflecting the light reflected by the half mirror H toward the third imaging lens assembly 341.
  • the reflector 361, 363, 365 is not particularly limited as long as it can reflect the light to change the optical axis, but may include, for example, a mirror.
  • the monocular laparoscope 300 according to the third embodiment of FIG. 7 is a monocular horizontal league, which illustrates a case where the light reflected by the half mirror H and the light passing through the half mirror H are parallel to each other.
  • the monocular laparoscope according to the present invention adjusts the angles of the half mirror H and the reflector so that the optical axes are not parallel to each other, so that the second imaging lens assembly 21, 22 and the third imaging lens assembly ( 331 and 341 can be arranged freely so that they are not parallel to each other.
  • a part of the light passing through the first imaging lens assembly 10 passes through the half mirror H and is reflected by the reflecting parts 363 and 365 to the second imaging lens assembly 21.
  • the remaining light, which has passed through the first imaging lens assembly 10 is sequentially reflected by the half mirror H and the reflector 361, and then enters the second imaging lens assembly 22.
  • the use of a macro lens or a telephoto lens may be used for the third imaging lens assembly 331, 341, or the second imaging lens assembly 21 when the macro lens is used for the third imaging lens assembly 331, 341.
  • the third imaging lens assembly 331 (341) and the second imaging lens assembly (21) when the telephoto lens is used for the third imaging lens assembly (331, 341). ) 22 may be combined to approximate the focal position, and the same as the monocular laparoscope 100 of the first embodiment described above.
  • FIG 8 is an internal configuration diagram showing an optical configuration mounted on the monocular laparoscope according to the fourth embodiment of the present invention.
  • the monocular laparoscope 400 is the monocular laparoscope 300 of the third embodiment except that the second imaging lens assembly 20 is installed in front of the half mirror H. Same as). Accordingly, some of the light passing through the first imaging lens assembly 10 is reflected by the half mirror H and the mirror 361, and then enters the third imaging lens assembly 341, and the first imaging lens assembly 10 is applied. The remaining light passes through the half mirror H and is reflected by the reflecting parts 363 and 365 to be incident on the third imaging lens assembly 331.
  • the monocular laparoscope 400 according to the fourth embodiment of FIG. 8 is a monocular horizontal league, and illustrates the case where the light reflected by the half mirror H and the light passing through the half mirror H are parallel to each other.
  • the monocular laparoscope according to the present invention is freely arranged so that the third imaging lens assemblies 331 and 341 are not parallel to each other by adjusting the angles of the half mirror H and the reflector so that the optical axes are not parallel to each other. can do.
  • a macro lens or a telephoto lens may be used in the third imaging lens assembly 331 and 341.
  • the second imaging lens assembly ( 20, the third imaging lens assembly 331 (341) and the second imaging lens assembly 20 when the telephoto lens is used in the third imaging lens assembly (331, 341)
  • the combination and the like may bring the focus position closer to that described in the monocular laparoscope 100 of the first embodiment.
  • the monocular laparoscope 400 of the present invention may be a binocular stereoscopic camera (ie, an integrated binocular stereoscopic camera or two cameras) or a horizontal rig.
  • FIG. 9 is a cross-sectional view of the monocular laparoscope according to the fifth embodiment of the present invention equipped with the optical configuration shown in FIG. 2.
  • the monocular laparoscope 500 includes an adapter portion 510 and a body portion 520. At least a portion of the adapter 510 is inserted into the abdominal cavity to receive light.
  • the adapter unit 510 includes an inner barrel 50 on which the first imaging lens assembly 10 is mounted, and an outer barrel 60 for transmitting light.
  • the first imaging lens assembly 10 converges the light incident from the subject.
  • the first imaging lens assembly 10 may be mounted at one end of the inner barrel 50 so as to converge the light of the subject.
  • the diameter of the inner barrel 50 may be variously changed according to the diameter of the first imaging lens assembly 10, but may preferably have a diameter of less than 20 mm to leave a minimum wound after laparoscopic surgery.
  • the length of the first imaging lens assembly 10 has less than 1/2 of the total length of the inner barrel 50.
  • a plurality of relay lenses are required to deliver an image formed on a rear surface, whereas in the case of the first imaging lens assembly 10 of the present invention, a relay lens transferring an image formed on a rear surface is provided. The number of can be reduced.
  • the outer barrel 60 may have a ring shape corresponding to the outer surface of the inner barrel 50.
  • the outer barrel 60 is spaced apart from the inner barrel 50, and the light is transmitted between the outer barrel 60 and the inner barrel 50 to supply the illumination required for laparoscopic surgery.
  • the inner surface of the outer barrel 60 and the outer surface of the inner barrel 50 include known metal materials, alloys, plastics, and mixtures thereof that reflect light.
  • the body 520 may include a half mirror H, a first camera 30, and a second camera 40, and an adapter 510 may be detachably attached to one side of the body 520.
  • an adapter 510 may be detachably attached to one side of the body 520.
  • a protrusion M is formed on an outer surface of the outer barrel 60 constituting the adapter part 510, and a groove N in which the protrusion M is inserted and fixed is formed in the body part 520.
  • the configuration in which the adapter portion 510 can be detachably attached to the body portion 520 by using the protrusion M and the groove N is described, but it is obvious that it can be changed using a known detachable configuration. will be.
  • the body portion 520 may include a light supply device 70 for supplying light between the outer barrel 60 and the inner barrel 50.
  • the light supply device 70 may be a light emitting diode (LED) chip, but is not limited thereto.
  • the light supply device 70 may be disposed at a position as shown in FIG. 9 to supply light between the outer barrel 60 and the inner barrel 50.
  • FIG. 9 when the adapter unit 510 is viewed from the left side, light of a circular shape may be irradiated onto the subject. When light is irradiated with circular illumination, shadows that may be caused by surgical tools invaded into the abdominal cavity are minimized to facilitate the acquisition of a stereoscopic image.
  • FIG. 9 illustrates that the light supply device 70 is disposed on the body portion 520
  • the light supply device is disposed outside the monocular laparoscope 500 to light the outer barrel 60 through the light transmission path.
  • the light transmission path may include an optical fiber cable filled with glass fibers.
  • the light supply device 70 is disposed on the body 520 as shown in FIG. 9 to generate the light supply device. Heat may be transferred to the outer barrel 60 to prevent the possibility of damaging organs or skin tissue in the abdominal cavity.
  • the first imaging lens assembly 10 is mounted at one end of the inner barrel 50 so that the inner barrel 50 and the outer barrel 60 are separated from each other at one end.
  • the length of the 50 may be shorter than the length of the outer barrel 60 so that the first imaging lens assembly 10 may be mounted at one end of the outer barrel 60. That is, the aperture of the first imaging lens assembly 10 may be adjusted within a range of 1% to 100% of the entire diameter of the outer barrel 60.
  • the optical structure of the monocular laparoscope 500 according to the fifth embodiment described above is the same as that described in the first embodiment.
  • FIG. 10 is a cross-sectional view of the monocular laparoscope according to the sixth embodiment of the present invention equipped with the optical configuration shown in FIG.
  • the second imaging lens assembly 21, 22 of the monocular laparoscope 500 according to the fifth embodiment is connected to the half mirror H. Except for being disposed between the third imaging lens assembly (31) (41), it has the same configuration.
  • the monocular laparoscope according to the present invention is capable of (1) taking a three-dimensional image of the subject in the super near position with the first imaging lens assembly, and (2) the magnification of the subject in the super near position.
  • the angle of view can be precisely adjusted, and (3) the adapter portion on which the first imaging lens assembly is mounted can be easily attached and detached from the body portion, thereby widening the range of modification and selective use of the first imaging lens assembly, (4)
  • In the illumination of the laparoscope it is possible to impart a function of a non-illuminated light that prevents the occurrence of shadows, so that stereoscopic image acquisition is easy.

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  • Endoscopes (AREA)

Abstract

La présente invention concerne un laparoscope monoculaire pour obtenir une image stéréoscopique d'organes dans le corps par introduction dans la cavité abdominale, et le laparoscope monoculaire selon la présente invention comprend : un premier ensemble lentille d'imagerie (10) ; un demi-miroir (H) pour réfléchir une partie des rayons lumineux qui sont passés à travers le premier ensemble lentille d'imagerie (10) tout en permettant aux rayons de lumière restants de passer à travers ; une première caméra (30) comportant un deuxième ensemble lentille d'imagerie (31) pour imager les rayons lumineux qui ont été réfléchis par le demi-miroir (H) ; et une seconde caméra (40) comprenant un troisième ensemble lentille d'imagerie (41) pour imager les rayons lumineux qui sont passés à travers le demi-miroir (H). Le laparoscope monoculaire selon la présente invention peut obtenir une image stéréoscopique d'organes dans le corps positionnés très près du laparoscope monoculaire.
PCT/KR2016/008352 2015-12-24 2016-07-29 Laparoscope monoculaire permettant de capturer une image stéréoscopique Ceased WO2017111246A1 (fr)

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KR10-2015-0186854 2015-12-24
KR1020150186854A KR101610171B1 (ko) 2015-12-24 2015-12-24 입체 이미지를 촬영하기 위한 단안식 복강경

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CN114788677A (zh) * 2021-01-25 2022-07-26 上海亿长实业有限公司 一种单目3d立体内窥镜系统和方法

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
KR102847763B1 (ko) * 2022-08-23 2025-08-20 주식회사 팀누비즈 단일 카메라로 스테레오 광학계를 구성한 3차원 이미지 구강 스캐너

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JPH08308790A (ja) * 1995-05-16 1996-11-26 Shinko Koki Seisakusho:Kk 立体内視鏡装置
KR19990085766A (ko) * 1998-05-21 1999-12-15 윤종용 2차원 영상의 3차원 변환 광학 어댑터를채용한 입체 영상 복강경 시스템
KR20060090650A (ko) * 2006-07-28 2006-08-14 홍경희 입체영상 촬영장치
KR100986286B1 (ko) * 2010-04-12 2010-10-07 이용범 사람 눈처럼 주시각 제어가 가능한 직교식 양안 입체 카메라 시스템 및 그 제어방법
KR20130012436A (ko) * 2011-07-25 2013-02-04 표도연 단안식 입체 영상 카메라

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Publication number Priority date Publication date Assignee Title
JPH08308790A (ja) * 1995-05-16 1996-11-26 Shinko Koki Seisakusho:Kk 立体内視鏡装置
KR19990085766A (ko) * 1998-05-21 1999-12-15 윤종용 2차원 영상의 3차원 변환 광학 어댑터를채용한 입체 영상 복강경 시스템
KR20060090650A (ko) * 2006-07-28 2006-08-14 홍경희 입체영상 촬영장치
KR100986286B1 (ko) * 2010-04-12 2010-10-07 이용범 사람 눈처럼 주시각 제어가 가능한 직교식 양안 입체 카메라 시스템 및 그 제어방법
KR20130012436A (ko) * 2011-07-25 2013-02-04 표도연 단안식 입체 영상 카메라

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114788677A (zh) * 2021-01-25 2022-07-26 上海亿长实业有限公司 一种单目3d立体内窥镜系统和方法

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