WO2023087594A1 - 一种大视场角的硬式内窥镜 - Google Patents

一种大视场角的硬式内窥镜 Download PDF

Info

Publication number
WO2023087594A1
WO2023087594A1 PCT/CN2022/082711 CN2022082711W WO2023087594A1 WO 2023087594 A1 WO2023087594 A1 WO 2023087594A1 CN 2022082711 W CN2022082711 W CN 2022082711W WO 2023087594 A1 WO2023087594 A1 WO 2023087594A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
rigid endoscope
camera module
module
lens
Prior art date
Application number
PCT/CN2022/082711
Other languages
English (en)
French (fr)
Inventor
白晓淞
罗远金
Original Assignee
深圳英美达医疗技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳英美达医疗技术有限公司 filed Critical 深圳英美达医疗技术有限公司
Publication of WO2023087594A1 publication Critical patent/WO2023087594A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2407—Optical details
    • G02B23/2423—Optical details of the distal end
    • G02B23/243—Objectives for endoscopes
    • 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
    • A61B1/00163—Optical arrangements
    • 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
    • A61B1/00163—Optical arrangements
    • A61B1/00174—Optical arrangements characterised by the viewing angles
    • 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
    • A61B1/05—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 characterised by the image sensor, e.g. camera, being in the distal end portion
    • 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
    • A61B1/06—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 with illuminating arrangements
    • A61B1/07—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 with illuminating arrangements using light-conductive means, e.g. optical fibres
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2407—Optical details
    • G02B23/2461—Illumination
    • G02B23/2469—Illumination using optical fibres
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2476—Non-optical details, e.g. housings, mountings, supports
    • G02B23/2484—Arrangements in relation to a camera or imaging device

Definitions

  • the invention relates to the technical field of medical instruments, in particular to a rigid endoscope with a large viewing angle.
  • the current rigid endoscope system mainly provides illumination light through a cold light source.
  • the endoscope converts the captured image into an electrical signal and transmits it to the image processing host and display.
  • the viewing angle of the rigid endoscope is 0° and 30° mostly. At present, when the viewing angle is required to be squinted, the solution of turning prism and objective lens is often used.
  • Rigid endoscopes used in some surgical scenarios require a large field of view, but the current structure of the steering prism limits the field of view of the endoscope.
  • the present invention discloses a rigid endoscope with a large viewing angle, which has a simple structure and a large viewing angle.
  • a rigid endoscope with a large field of view which includes a sleeve, a camera module and an illumination component are arranged inside the sleeve, the illumination component is located on one side of the camera module, and the camera module is located in the rigid inner
  • the camera module includes a lens module, an image sensor and a circuit board, the lens module is connected to the image sensor, and the image sensor is electrically connected to the circuit board; the light of the lens module
  • the included angle between the shaft and the central axis of the sleeve is not 0.
  • the camera module is arranged at the front end of the rigid endoscope sleeve, and the central axis of the lens module and the sleeve, that is, the main axis of the endoscope, has an included angle.
  • the field angle makes the endoscope have a larger field angle.
  • the illuminating member is an illuminating fiber optic light guide.
  • the illumination fiber optic light guide is a glass fiber optic filament.
  • a diffusion module is provided at the light outlet of the illumination fiber guide light beam.
  • the diffusion module is a diffusion lens.
  • the casing is made of stainless steel.
  • the diameter of the sleeve is 9-11 mm. Further preferably, the diameter of the sleeve is 10mm.
  • the camera module and the lighting component are respectively fixedly connected to the sleeve. Further, the camera module is fixedly connected to the front end of the sleeve, and the lighting component is fixedly connected to the inner wall of the sleeve.
  • the included angle is 30°-60°. Further preferably, the included angle is 45°.
  • the field angle of the lens module is 100°-140°.
  • the camera module is directly installed on the front end of the rigid endoscope, which simply and conveniently realizes a large field of view, and avoids the traditional complex structure of steering prism, objective lens, and image transmission lens.
  • the use of turning prisms avoids the limitation of the viewing angle of the lens by the turning prisms.
  • FIG. 1 is a schematic diagram of the internal structure of a rigid endoscope with a large viewing angle according to Embodiment 1 of the present invention.
  • Fig. 2 is a schematic diagram of the main axis and visual axis of a rigid endoscope with a large viewing angle according to Embodiment 1 of the present invention.
  • a rigid endoscope with a large field of view includes a sleeve 1, a camera module 2 and an illumination optical fiber guide beam 3 are arranged in the sleeve 1, and the illumination optical fiber
  • the light guide 3 is located on one side of the camera module 2 and connected to the inner wall of the casing 1 .
  • the camera module 2 is positioned at the front end of the rigid endoscope sleeve; the camera module 2 includes a lens module 21, an image sensor 22 and a circuit board 23, and the lens module 21 is connected with the image sensor 22, the The image sensor 22 is electrically connected to the circuit board 23; the angle between the optical axis 24 of the lens module and the central axis of the sleeve is not zero.
  • the camera module 2 is fixedly connected to the front end of the casing 1 .
  • the viewing angle of the lens module 21 can be selected as required, and in this embodiment, the viewing angle of the lens module 21 is 100°.
  • the front end of the sleeve 1 is not perpendicular to the central axis of the sleeve, but has an included angle with the central axis, so that the visual axis 5 of the rigid endoscope is not parallel to the central axis.
  • the casing 1 is made of stainless steel.
  • the diameter of the casing 1 is 10mm.
  • the illumination optical fiber light guide 3 is a glass optical fiber filament, which is used to conduct the illumination light from the cold light source and illuminate the tissue to be observed.
  • the light outlet of the illumination optical fiber bundle can directly emit light, or a diffusion module can be added.
  • a diffusion module can be added.
  • a diffuse lens so that the illumination light range of the fiber optic bundle is larger than the field of view angle of the endoscope.
  • the included angle is 30°-60°.
  • the camera module 2 is arranged on the front end of the rigid endoscope sleeve, and the lens module 21 and the central axis of the sleeve, that is, the mirror body main shaft 4 of the endoscope, have an included angle.
  • 21 images the external image on the image sensor 22, and the image sensor 22 converts the analog signal into an electrical signal, and transmits the electrical signal to the image processing system through the circuit board 23.
  • the camera module 2 is directly installed on the front end of the rigid endoscope, which avoids the traditional complex structure of turning prisms, objective lenses, and image transmission lenses. At the same time, because the turning prism is not used, it avoids the limitation of the turning prism on the field of view of the lens.
  • the angle between the lens module 21 and the central axis of the sleeve combined with the viewing angle of the lens module 21 makes the endoscope have a larger viewing angle.
  • the included angle between the lens module 21 and the central axis of the sleeve is 45°.
  • the viewing angle of the lens module 21 is 140°.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Endoscopes (AREA)

Abstract

本发明提供了一种大视场角的硬式内窥镜，其包括套管，所述套管内设有摄像头模组和照明构件，所述照明构件位于摄像头模组的一侧，所述摄像头模组位于硬式内窥镜套筒的前端；所述摄像头模组包含镜头模组、图像传感器和电路板，所述镜头模组与图像传感器连接，所述图像传感器与电路板电连接；所述镜头模组的光轴与套筒的中轴线之间为不为0的夹角。采用本发明的技术方案，直接将摄像头模组安装在硬式内窥镜的前端，实现了大视场角，避免了传统采用转向棱镜、物镜、传像透镜的复杂结构，同时由于不采用转向棱镜，从而避免了转向棱镜对镜头视场角的限制。

Description

一种大视场角的硬式内窥镜 技术领域
本发明涉及医疗器械技术领域，尤其涉及一种大视场角的硬式内窥镜。
背景技术
随着人类科技的发展，医学手术技术也日新月异。现代的医疗技术广泛的使用微创手术，比如利用腹腔镜、胸腔镜进行微创手术，这种手术方式具备恢复快，创伤小，疼痛少等优点。目前的硬式内窥镜系统主要是通过冷光源提供照明光，内窥镜将拍摄的图像转换为电信号传送到图像处理主机以及显示器上，硬式内窥镜的视向角以0°和30°的居多。目前，需要视向角为斜视的场合，多采用转向棱镜加物镜的方案。有的手术场景所用的硬式内窥镜需要大视场角，但目前采用转向棱镜的结构限制了内窥镜的视场角。
发明内容
针对上述技术问题，本发明公开了一种大视场角的硬式内窥镜，结构简单，具有大的视场角。
对此，本发明的技术方案为：
一种大视场角的硬式内窥镜，其包括套管，所述套管内设有摄像头模组和照明构件，所述照明构件位于摄像头模组的一侧，所述摄像头模组位于硬式内窥镜套筒的前端；所述摄像头模组包含镜头模组、图像传感器和电路板，所述镜头模组与图像传感器连接，所述图像传感器与电路板电连接；所述镜头模组的光轴与套筒的中轴线之间为不为0的夹角。
采用此技术方案，将摄像头模组设置在硬式内窥镜套筒的前端，并使得镜头模组与套筒的中轴线也就是内窥镜的镜体主轴存在夹角，结合镜头模组的视场角，使得内窥镜具有更大的视场角。
作为本发明的进一步改进，所述照明构件为照明光纤导光束。进一步优选的，所述照明光纤导光束为玻璃光纤丝。
作为本发明的进一步改进，所述照明光纤导光束的出光口设有扩散模组。
作为本发明的进一步改进，所述扩散模组为扩散透镜。
作为本发明的进一步改进，所述套管的材质为不锈钢。
作为本发明的进一步改进，所述套管的直径为9-11mm。进一步优选的，所述套管的直径为10mm。
作为本发明的进一步改进，所述摄像头模组、照明构件分别与套管固定连接。进一步的，所述摄像头模组与套管的前端固定连接，所述照明构件与套管的内壁固定连接。
作为本发明的进一步改进，所述夹角为30°～60°。进一步优选的，所述夹角为45°。
作为本发明的进一步改进，所述镜头模组的视场角为100°～140°。
与现有技术相比，本发明的有益效果为：
采用本发明的技术方案，直接将摄像头模组安装在硬式内窥镜的前端，简单方便的实现了大视场角，避免了传统采用转向棱镜、物镜、传像透镜的复杂结构，同时由于不采用转向棱镜，从而避免了转向棱镜对镜头视场角的限制。
附图说明
图1是本发明实施例1的一种大视场角的硬式内窥镜的内部结构示意图。
图2是本发明实施例1的一种大视场角的硬式内窥镜的主轴与视轴的示意图。
附图标记包括：
1-套管，2-摄像头模组，3-照明光纤导光束；4-镜体主轴，5-视轴；21-镜头模组，22-图像传感器，23-电路板，24-镜头模组的光轴。
具体实施方式
下面结合附图，对本发明的较优的实施例作进一步的详细说明。
实施例1
如图1和图2所示，一种大视场角的硬式内窥镜，其包括套管1，所述套管1内设有摄像头模组2和照明光纤导光束3，所述照明光纤导光束3位于摄像头模组2的一侧，并与套管1的内壁连接。所述摄像头模组2位于硬式内窥镜套筒的前端；所述摄像头模组2包含镜头模组21、图像传感器22和电路板23，所述镜头模组21与图像传感器22连接，所述图像传感器22与电路板23电连接；所述镜头模组的光轴24与套筒的中轴线之间的夹角不为0。所述摄像头模组2与套管1的前端固定连接。其中，所述镜头 模组21的视场角可以根据需要进行选择，本实施例中，所述镜头模组21的视场角为100°。套管1的前端不是垂直于套筒的中轴线的，其与中轴线之间有夹角，使得硬式内窥镜的视轴5不是平行于中轴线。
进一步优选的，所述套管1的材质为不锈钢。所述套管1的直径为10mm。
进一步优选的，所述照明光纤导光束3为玻璃光纤丝，其用于传导来自冷光源的照明光，并且照明待观察组织，照明光纤束的出光口可以直接出光，也可以添加扩散模组，比如扩散透镜，以使得光纤束的照明光范围大于内窥镜的视场角。
进一步优选的，所述夹角为30°～60°。
采用此技术方案，将摄像头模组2设置在硬式内窥镜套筒的前端，并使得镜头模组21与套筒的中轴线也就是内窥镜的镜体主轴4存在夹角，镜头模组21把外界图像成像在图像传感器22上，图像传感器22把模拟信号转换为电信号，在通过电路板23把电信号传递给图像处理系统。摄像头模组2直接安装在硬式内窥镜的前端，这样避免的传统采用转向棱镜、物镜、传像透镜的复杂结构，同时由于不采用转向棱镜，从而避免了转向棱镜对镜头视场角的限制，镜头模组21与套筒的中轴线的夹角结合镜头模组21的视场角，使得内窥镜具有更大的视场角。
实施例2
在实施例1的基础上，本实施例中，所述镜头模组21与套筒的中轴线的夹角为45°。
实施例3
在实施例1的基础上，本实施例中，所述镜头模组21的视场角为140°。
以上所述之具体实施方式为本发明的较佳实施方式，并非以此限定本发明的具体实施范围，本发明的范围包括并不限于本具体实施方式，凡依照本发明之形状、结构所作的等效变化均在本发明的保护范围内。

Claims (9)

  1. 一种大视场角的硬式内窥镜，其特征在于：其包括套管，所述套管内设有摄像头模组和照明构件，所述照明构件位于摄像头模组的一侧，所述摄像头模组位于硬式内窥镜套筒的前端；
    所述摄像头模组包含镜头模组、图像传感器和电路板，所述镜头模组与图像传感器连接，所述图像传感器与电路板电连接；所述镜头模组的光轴与套筒的中轴线之间为不为0的夹角。
  2. 根据权利要求1所述的大视场角的硬式内窥镜，其特征在于：所述照明构件为照明光纤导光束，所述照明光纤导光束为玻璃光纤丝。
  3. 根据权利要求2所述的大视场角的硬式内窥镜，其特征在于：所述照明光纤导光束的出光口设有扩散模组。
  4. 根据权利要求3所述的大视场角的硬式内窥镜，其特征在于：所述扩散模组为扩散透镜。
  5. 根据权利要求1～4任意一项所述的大视场角的硬式内窥镜，其特征在于：所述套管的材质为不锈钢。
  6. 根据权利要求5所述的大视场角的硬式内窥镜，其特征在于：所述套管的直径为9-11mm。
  7. 根据权利要求5所述的大视场角的硬式内窥镜，其特征在于：所述摄像头模组、照明构件与套管固定连接。
  8. 根据权利要求5所述的大视场角的硬式内窥镜，其特征在于：所述夹角为30°～60°。
  9. 根据权利要求8所述的大视场角的硬式内窥镜，其特征在于：所述镜头模组的视场角为100°～140°。
PCT/CN2022/082711 2021-11-18 2022-03-24 一种大视场角的硬式内窥镜 WO2023087594A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111369111.6A CN114019671A (zh) 2021-11-18 2021-11-18 一种大视场角的硬式内窥镜
CN202111369111.6 2021-11-18

Publications (1)

Publication Number Publication Date
WO2023087594A1 true WO2023087594A1 (zh) 2023-05-25

Family

ID=80065096

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/082711 WO2023087594A1 (zh) 2021-11-18 2022-03-24 一种大视场角的硬式内窥镜

Country Status (2)

Country Link
CN (1) CN114019671A (zh)
WO (1) WO2023087594A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114019671A (zh) * 2021-11-18 2022-02-08 深圳英美达医疗技术有限公司 一种大视场角的硬式内窥镜

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09122071A (ja) * 1995-10-30 1997-05-13 Fuji Photo Optical Co Ltd 斜視型電子内視鏡
CN111654598A (zh) * 2019-03-04 2020-09-11 株式会社腾龙 观察摄像装置
CN112135557A (zh) * 2018-03-14 2020-12-25 奥林巴斯株式会社 摄像单元和斜视型内窥镜
CN114019671A (zh) * 2021-11-18 2022-02-08 深圳英美达医疗技术有限公司 一种大视场角的硬式内窥镜

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005177025A (ja) * 2003-12-17 2005-07-07 Olympus Corp 内視鏡
JP2019056722A (ja) * 2017-09-19 2019-04-11 パナソニックＩｐマネジメント株式会社 斜視内視鏡及び撮像システム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09122071A (ja) * 1995-10-30 1997-05-13 Fuji Photo Optical Co Ltd 斜視型電子内視鏡
CN112135557A (zh) * 2018-03-14 2020-12-25 奥林巴斯株式会社 摄像单元和斜视型内窥镜
CN111654598A (zh) * 2019-03-04 2020-09-11 株式会社腾龙 观察摄像装置
CN114019671A (zh) * 2021-11-18 2022-02-08 深圳英美达医疗技术有限公司 一种大视场角的硬式内窥镜

Also Published As

Publication number Publication date
CN114019671A (zh) 2022-02-08

Similar Documents

Publication Publication Date Title
US8480566B2 (en) Solid state illumination for endoscopy
US8858425B2 (en) Disposable endoscope and portable display
US20090292168A1 (en) Wavelength multiplexing endoscope
US5888193A (en) Endoscope with curved optical axis
WO2023087594A1 (zh) 一种大视场角的硬式内窥镜
WO2023221662A1 (zh) 一种光学硬管内窥镜
CN102809808A (zh) 医用3d影像手术显微镜系统
US8390924B2 (en) Endoscope and endoscope apparatus
CN101703415A (zh) 硬质超声胆囊内镜系统及使用方法
JPH0850252A (ja) 内視鏡検査プローブのための立体画像作成アセンブリ
JPS63200115A (ja) 内視鏡装置
CN207768341U (zh) 一种可分离纤维内窥镜
CN106176041A (zh) 一种带手术器械通道的电子耳镜
Miller Endoscopic instrumentation: evolution, physical principles and clinical aspects
CN106444004B (zh) 前后视场电子内窥镜
Cunningham et al. Historical development of endoscopy
JP3714636B2 (ja) 内視鏡装置
JP4493141B2 (ja) 内視鏡
Tate et al. Optical design of an optical coherence tomography and multispectral fluorescence imaging endoscope to detect early stage ovarian cancer
CN212879239U (zh) 一种新型柔性杆窥镜
CN220632037U (zh) 医用内窥镜
CN113143190B (zh) 一种腹腔镜镜头防起雾装置
CN218922534U (zh) 输尿管镜
JP2001025035A (ja) 立体視装置及びその組み立て・分解並びに使用方法
US20230270322A1 (en) Endoscope

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22894140

Country of ref document: EP

Kind code of ref document: A1