WO2024207716A1 - 光扩散照明装置及内窥镜 - Google Patents

光扩散照明装置及内窥镜 Download PDF

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Publication number
WO2024207716A1
WO2024207716A1 PCT/CN2023/127922 CN2023127922W WO2024207716A1 WO 2024207716 A1 WO2024207716 A1 WO 2024207716A1 CN 2023127922 W CN2023127922 W CN 2023127922W WO 2024207716 A1 WO2024207716 A1 WO 2024207716A1
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WO
WIPO (PCT)
Prior art keywords
light
diffusion
light guide
lighting device
diffusion element
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PCT/CN2023/127922
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English (en)
French (fr)
Inventor
奚杰峰
张华堂
李艳
吴海波
杨华
Original Assignee
南微医学科技股份有限公司
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Publication of WO2024207716A1 publication Critical patent/WO2024207716A1/zh

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Classifications

    • 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
    • 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
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • 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
    • A61B1/00165—Optical arrangements with light-conductive means, e.g. fibre optics
    • 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
    • A61B1/0661—Endoscope light sources
    • A61B1/0676—Endoscope light sources at distal tip of an endoscope

Definitions

  • the present disclosure relates to the technical field of medical devices, and in particular to a light diffusion lighting device and an endoscope.
  • an endoscope system In the medical field, an endoscope system is used to observe the inside of a subject.
  • An endoscope generally has a long and flexible insertion portion inserted into a patient or other subject, and illuminates the inside of the subject with illumination light from the front end of the insertion portion.
  • the endoscope is connected to a light source device that supplies illumination light.
  • Existing lighting devices such as CN107250661B, include a light guide component and a light conversion component.
  • the ends of the light guide component and the light conversion component are connected together to form a combination.
  • the front end component of the lighting device (that is, the light conversion component) is required to be lower in hydrophilicity than the light guide component, which limits the selection of the light guide component and the light conversion component.
  • the connection position between the two needs to be reinforced and sealed for a secondary time, which is troublesome to process.
  • only the hemispherical surface of the light conversion component emits light.
  • the NA value of the light guide in the prior art is ⁇ 0.8.
  • FOV of the light guide cannot meet the required angle of the endoscopic image, and cannot meet the requirements of sufficient illumination and uniformity of illumination, which will affect the image quality.
  • the purpose of the present disclosure is to provide a light diffusion lighting device and an endoscope to alleviate the technical problems of existing lighting devices such as high hydrophilicity requirements for raw materials, need for secondary reinforcement after assembly, small lighting angle, and uneven lighting.
  • an embodiment of the present disclosure provides a light diffusion lighting device, comprising: a diffusion element and a light guide, wherein the back side of the diffusion element has a connection area, and the light output end of the light guide extends to the inside of the diffusion element through the connection area.
  • the number of the light guides is at least two.
  • the diffusion element has a mounting hole that passes through the back and front sides, and the mounting hole is used to mount the camera mechanism; and the recess is located on the circumferential outer side of the mounting hole.
  • the diffusion element includes an integrally formed substrate and light diffusion particles dispersed inside the substrate.
  • the diffusion element includes a substrate and light diffusion particles adhered to the substrate by an adhesive.
  • the light diffusion particles surround the light guide body at a solid angle of 4 ⁇ ;
  • the light diffusion particles surround the light guide at a solid angle of approximately 4 ⁇ or substantially 4 ⁇ .
  • the light diffusion particles include at least one of organic silicon diffusion particles, PMMA cross-linked microsphere diffusion particles, PS cross-linked microsphere diffusion particles, inorganic silicon dioxide particles and titanium dioxide particles.
  • the front surface of the diffusion element is a plane, an inclined arc surface, an arc surface or a chamfered plane.
  • the present disclosure provides an endoscope comprising the above-mentioned light diffusion lighting device.
  • the endoscope also includes a light source arranged at the light input end of the light guide.
  • the light diffusion lighting device provided by the embodiment of the present disclosure includes a diffusion element and a light guide, the back of the diffusion element has a connection area, and the light output end of the light guide extends to the inside of the diffusion element through the connection area.
  • the main innovation point different from the prior art is that in the device provided by the present disclosure, the back of the diffusion element has a connection area, and the connection area forms a space for assembling the light guide, so that the light guide can be extended into the interior of the diffusion element to complete the fixed connection between the diffusion element and the light guide.
  • this assembly method does not need to consider the hydrophilicity of the diffusion element and the light guide, which reduces the requirements for raw materials; on the other hand, because a part of the light guide has been confined in the diffusion element, it is possible to avoid secondary reinforcement and sealing of the device, reducing the assembly cost.
  • the light guide extends into a part of the diffusion element, the light emitted from the light guide is repeatedly scattered in the diffusion element, not only a part of the diffusion element on the front side of the light guide can emit light, but also a part of the diffusion element on the circumferential outside of the light guide can emit light, which greatly improves the lighting range and light uniformity.
  • the endoscope provided by the present disclosure includes the above-mentioned light diffusion lighting device. Since the endoscope provided by the embodiment of the present disclosure uses the above-mentioned light diffusion lighting device, the endoscope provided by the embodiment of the present disclosure also has the advantages of the light diffusion lighting device.
  • FIG1 is a schematic diagram of a light diffusion lighting device provided by an embodiment of the present disclosure.
  • FIG2 is a schematic diagram of a light diffusion lighting device provided by an embodiment of the present disclosure, wherein the front surface of the diffusion element is a circular arc surface;
  • FIG. 3 is a schematic diagram of a light diffusion lighting device provided by an embodiment of the present disclosure, wherein the front surface of the diffusion element is an oblique arc surface;
  • FIG4 is a schematic diagram of a light diffusion lighting device provided by an embodiment of the present disclosure, wherein the front side of the diffusion element is a chamfered plane;
  • FIG. 5 is a schematic diagram of a light diffusion lighting device provided by an embodiment of the present disclosure, in which both the front and back sides of a diffusion element are chamfered planes;
  • connection area of the diffusion element of the light diffusion lighting device provided by an embodiment of the present disclosure has an uneven extension direction
  • FIG. 7 is a schematic diagram showing that the cross section of a diffusion element of the light diffusion lighting device provided by an embodiment of the present disclosure is a triangle;
  • Fig. 8 is a cross-sectional view taken along the A-A direction in Fig. 7;
  • FIG9 is a diagram showing the lighting effects when the mass ratio of the diffusion particles to the molded particles in the diffusion element of the light diffusion lighting device provided by the embodiment of the present disclosure is 0%, 10% and 25% respectively;
  • FIG. 10 is a schematic diagram of an endoscope provided in an embodiment of the present disclosure.
  • Icon 100 - diffusion element; 110 - substrate; 120 - light diffusion particles; 130 - connection area;
  • 300- camera mechanism 400- imager; 500- handle; 600- light source; 700- catheter assembly; 800- cable.
  • connection should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements.
  • connection should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements.
  • the light diffusion lighting device provided by the embodiment of the present disclosure includes: a diffusion element 100 and a light guide 200 .
  • the diffusion element 100 is manufactured by using an integrated molding technology, for example, by molding or glue injection.
  • the diffusion element 100 includes a substrate 110 and light diffusion particles 120 dispersed inside the substrate 110 , wherein the material of the substrate 110 can be transparent plastic such as PC, PMMA, PS, etc., or can be UV glue.
  • the light diffusion particles 120 may include at least one of silicone diffusion particles, PMMA cross-linked microsphere diffusion particles, PS cross-linked microsphere diffusion particles, inorganic silica particles and titanium dioxide particles. That is, the type of light diffusion particles 120 dispersed in the substrate 110 may be single or multiple.
  • the diffusion element 100 may be formed by integrally molding UV glue and light diffusion particles 120 , or may be formed by integrally molding light diffusion particles 120 and transparent plastic.
  • the light diffusion particles 120 can surround the light guide 200 at a 4 ⁇ solid angle, so that the non-laser emitted from the light guide 200 is scattered multiple times by the diffusing agent in the diffusion element 100, and then emitted to expand the illumination range, and multiple scattering and mixing make the illumination more uniform.
  • the "4 ⁇ solid angle" mentioned can be “basically 4 ⁇ solid angle", that is, the light diffusion particles 120 are 4 ⁇ solid angles as a whole, but due to the limitations of the preparation process, slight angle deviations are inevitable.
  • the integrally molded diffusion element 100 and the light guide 200 are arranged in a three-dimensional surrounding shape. The position will not affect the diffusion effect and uniformity, and there is no need for equal-interval arrangement restrictions, so the distribution requirements for the light guide 200 are low.
  • the light diffusion particles 120 on the substrate 110 can be connected by gluing, that is, the substrate 110 is formed first, and after the substrate 110 is cured, the light diffusion particles 120 are glued to the surface of the substrate 110 .
  • the proportion of the light diffusion particles 120 will affect the illumination range and uniformity.
  • the first picture in FIG9 is an illumination effect picture without adding the light diffusion particles 120
  • the second and third pictures are illumination effect pictures after adding the light diffusion particles 120.
  • the illumination range of the latter two pictures is larger and the illumination is more uniform.
  • connection area 130 may be a concave hole or a groove, and the light-emitting end of the light guide 200 extends into the connection area 130, the light-emitting end faces the bottom surface of the connection area 130, and the light-emitting direction is along the back side toward the front side of the diffusion element 100. After the light enters the diffusion element 100, it will be scattered multiple times by the light diffusion particles 120 in the diffusion element 100, so that it is emitted from various angles and positions, thereby improving the illumination range and uniformity.
  • the diffusion element 100 When assembling the diffusion element 100 and the light guide 200, the diffusion element 100 can be prepared first, and then the light guide 200 is inserted into the diffusion element 100, and then the adhesive is injected into the connection area 130. After the adhesive is cured, the diffusion element 100 and the light guide 200 are tightly connected.
  • the diffusion element 100 is inserted, and after the substrate 110 is completely cured, the substrate 110 hugs the light guide 200.
  • the substrate 110, the light diffusion particles 120 and the light guide 200 can be processed into an integrated structure.
  • the diffusion element 100 when the diffusion element 100 is assembled with the light guide 200, there is no need to bend the light guide 200, and there is no restriction on the type of the light guide 200.
  • the light guide 200 can be made of fragile glass optical fiber or plastic optical fiber.
  • the one-piece molded diffusion component simplifies the assembly structure, and there is no need to distort the light guide 200 for assembly, and there is no special restriction on the material of the light guide 200.
  • the back of the diffusion element 100 has a connection area 130 that is recessed toward the front, and the connection area 130 forms a space for assembling the light guide 200, so that the light guide 200 can be extended into the interior of the diffusion element 100 to complete the fixed connection between the diffusion element 100 and the light guide 200.
  • this assembly method does not need to consider the hydrophilicity of the diffusion element 100 and the light guide 200, which reduces the requirements for raw materials; on the other hand, because a part of the light guide 200 has been confined in the diffusion element 100, it is possible to avoid secondary reinforcement and sealing of the device, thereby reducing the assembly cost.
  • the light guide 200 extends into a part of the diffusion element 100, the light emitted from the light guide 200 is repeatedly scattered in the diffusion element 100, so that not only a part of the diffusion element 100 in front of the light guide 200 can emit light, but also a part of the diffusion element 100 on the outer side of the light guide 200 can emit light, which greatly improves the illumination range and uniformity.
  • the number of the light guide 200 in the device can be one or at least two. When there is more than one light guide 200, these light guides 200 can be located in the same connection area 130 or in multiple connection areas. Within the connection area 130.
  • the diffusion element 100 has a mounting hole that passes through the back and front, and the mounting hole is used to install the camera mechanism 300; and the connection area 130 is located outside the circumference of the mounting hole.
  • the light outside the camera is uniform, which helps the operator observe the situation inside the body.
  • the front surface of the diffusion element 100 may be a plane, an inclined arc surface, an arc surface or a chamfered plane.
  • both the front and back sides of the diffusion element 100 may have chamfers, so that light is evenly scattered from the chamfered positions in the form of a curved surface.
  • connection area 130 on the back side of the diffusion element 100 may be consistent or inconsistent.
  • the connection area 130 is divided into two parts.
  • the aperture of the part close to the back side is similar to the aperture of the light guide 200, and the light guide 200 penetrates from this part.
  • the part close to the front side is spherical, and its diameter is larger than that of the other part.
  • the cross-section of the outer wall of the diffusion element 100 may be in the shape of a triangle, so that the umbrella surface of the circumferential side wall can all emit light.
  • the thickness of the portion of the diffusion element 100 that contacts the end surface of the light guide 200 may be between 0.1 mm and 5 mm.
  • the endoscope provided by the present disclosure includes the above-mentioned light diffusion lighting device. Since the endoscope provided by the embodiment of the present disclosure uses the above-mentioned light diffusion lighting device, the endoscope provided by the embodiment of the present disclosure also has the advantages of the light diffusion lighting device.
  • the endoscope also includes a camera mechanism 300, an imager 400, a handle 500, a light source 600, a catheter assembly 700 and a cable 800, wherein the light source 600 can be set in the handle 500, the light diffusion lighting device can be installed at the distal end of the catheter assembly 700, and the handle 500 is installed at the proximal end of the catheter assembly 700.
  • the camera mechanism 300 is mounted on the diffusion element 100 , and the camera mechanism 300 is connected to the imager 400 outside the handle 500 via a cable 800 , and the cable 800 passes through the catheter assembly 700 and the handle 500 in sequence.
  • the light emitted by the light source 600 is irradiated to the target position through the light guide 200 and the light diffusion component.
  • the camera mechanism 300 at the end of the endoscope lens converts the light signal scattered by the target position into an electrical signal, and transmits it to the image processing device of the imager 400 through the transmission cable 800.
  • the imager 400 then converts the signal into an image signal and outputs it.
  • the light source 600 can be a non-laser light source 600.
  • the non-laser light source 600 guides the light beam into the diffusion element 100 through the light guide 200, and the light beam is scattered and mixed by the diffusion element 100 and then emitted, which has low requirements on the light source 600.
  • the endoscope can be a disposable electronic endoscope or a reusable endoscope such as a disposable pancreaticobiliary imaging catheter, a disposable bronchial imaging catheter, a disposable urinary imaging catheter, etc.
  • the present disclosure provides a light diffusion lighting device and an endoscope, which relate to the technical field of medical devices.
  • the light diffusion lighting device includes: a diffusion element and a light guide.
  • the back of the diffusion element has a connection area, and the light output end of the light guide extends into the connection area.
  • this assembly method does not need to consider the hydrophilicity of the diffusion element and the light guide, which reduces the requirements for raw materials; on the other hand, because a part of the light guide has been confined in the diffusion element, it is possible to avoid secondary reinforcement and sealing of the device, reducing the assembly cost.
  • the light emitted from the light guide is repeatedly scattered in the diffusion element, and not only a part of the diffusion element on the front side of the light guide can emit light, but also a part of the diffusion element on the circumferential outside of the light guide can emit light, which greatly improves the illumination range and uniformity.
  • the light diffusion lighting device and endoscope disclosed herein are reproducible and can be used in a variety of industrial applications.
  • the light diffusion lighting device and endoscope disclosed herein can be used in the field of medical device technology.

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Abstract

一种光扩散照明装置及内窥镜。光扩散照明装置包括：扩散元件（100）和导光体（200），扩散元件（100）的背面具有连接区域（130），导光体（200）的出光端伸入到连接区域（130）内。导光体（200）伸入到扩散元件（100）内一部分，从导光体（200）发出的光在扩散元件（100）内被反复散射，不仅在导光体（200）前侧的一部分扩散元件（100）可以发光，在导光体（200）周向外侧的一部分扩散元件（100）也可以发光，提高了照明范围及均匀性。

Description

光扩散照明装置及内窥镜
相关申请的交叉引用
本公开要求于2023年04月03日提交中国国家知识产权局的申请号为202310345019.9、名称为“光扩散照明装置及内窥镜”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及医疗器械技术领域，尤其是涉及一种光扩散照明装置及内窥镜。
背景技术
在医疗领域中，为了观察被检体内部而使用内窥镜系统。内窥镜一般在患者等被检体内插入呈细长形状的挠性的插入部，从该插入部前端利用照明光对被检体内部进行照明。内窥镜上连接有与供给照明光的光源装置。
现有的照明装置，如CN107250661B，包括导光部件和光变换部件，导光部件与光变换部件端部连接在一起，为组合件，组装时对材料亲水性有要求，要求照明装置前端部件(也就是光变换部件)比导光部件的亲水性低，限制了导光部件与光变换部件的选择；并且，组装完成后需要对二者的连接位置进行二次加固密封，加工麻烦；并且，上述的照明装置中，仅光变换部件的半球面发光，现有技术导光体NA值≤0.8在传输非激光光源出射光时视场照明角度导光体FOV无法满足内窥镜图像需要角度，无法满足足够的光照照明以及光照的均匀性，会影响图像质量。
发明内容
本公开的目的在于提供光扩散照明装置及内窥镜，以缓解现有的照明装置对原料的亲水要求高、装配后需要二次加固、且照明角度小、光照不均匀的技术问题。
第一方面，本公开实施例提供的一种光扩散照明装置，包括：扩散元件和导光体，所述扩散元件的背面具有连接区域，所述导光体的出光端通过所述连接区域延申至所述扩散元件内部。
进一步的，所述导光体的数量至少为两条。
进一步的，所述扩散元件上具有贯穿背面和正面的安装孔，所述安装孔用于安装摄像机构；且所述凹部位于所述安装孔的周向外侧。
进一步的，所述扩散元件包括一体成型的基材以及分散在基材内部的光扩散粒子。
进一步的，所述扩散元件包括基材、以及通过粘结剂粘贴在基材上的光扩散粒子。
进一步的，所述光扩散粒子呈4π立体角环绕在导光体周围；
或者，所述光扩散粒子呈类4π立体角或者基本呈4π立体角环绕在导光体周围。
进一步的，所述光扩散粒子包括有机硅扩散粒子、PMMA交联微球扩散粒子、PS交联微球扩散粒子、无机的二氧化硅粒子和二氧化钛粒子中的至少一种。
进一步的，所述扩散元件的正面为平面、斜弧面、圆弧面或者倒角平面。
第二方面，本公开提供的一种内窥镜，包括上述的光扩散照明装置。
进一步的，所述内窥镜还包括设置于导光体进光端的光源。
本公开实施例提供的光扩散照明装置包括扩散元件和导光体，所述扩散元件的背面具有连接区域，所述导光体的出光端通过所述连接区域延申至所述扩散元件内部。区别于现有技术的主要创新点在于本公开提供的装置中，扩散元件的背面具有连接区域，连接区域形成了装配导光体的空间，可以将导光体伸入到扩散元件的内部，完成扩散元件与导光体的固定连接，一方面，此种装配方法无需考虑扩散元件和导光体的亲水性，降低了对原材料的要求；另一方面，因为导光体的一部分已经被限制在扩散元件内了，所以，可以避免对装置进行二次加固密封，降低了组合成本。同时，因为导光体伸入到扩散元件内一部分，从导光体发出的光在扩散元件内被反复多次散射，不仅在导光体前侧的一部分扩散元件可以发光，在导光体周向外侧的一部分扩散元件也可以发光，大大的提高了照明范围及光照均匀性。
本公开提供的内窥镜包括上述的光扩散照明装置。因为本公开实施例提供的内窥镜引用了上述的光扩散照明装置，所以，本公开实施例提供的内窥镜也具备光扩散照明装置的优点。
附图说明
图1为本公开实施例提供的光扩散照明装置的示意图；
图2为本公开实施例提供的光扩散照明装置的扩散元件的正面为圆弧面的示意图；
图3为本公开实施例提供的光扩散照明装置的扩散元件的正面为斜弧面的示意图；
图4为本公开实施例提供的光扩散照明装置的扩散元件的正面为倒角平面的示意图；
图5为本公开实施例提供的光扩散照明装置的扩散元件的正面和背面均为倒角平面的示意图；
图6为本公开实施例提供的光扩散照明装置的扩散元件的连接区域延伸方向不均匀的示意图；
图7为本公开实施例提供的光扩散照明装置的扩散元件的横截面为三角形的示意图；
图8为图7中A-A方向的剖视图；
图9为本公开实施例提供的光扩散照明装置的扩散元件的中扩散粒子占比成型粒子的质量比例分别为0％、10％和25％时的光照效果图；
图10为本公开实施例提供的内窥镜的示意图。
图标：100-扩散元件；110-基材；120-光扩散粒子；130-连接区域；
200-导光体；
300-摄像机构；400-成像器；500-手柄；600-光源；700-导管组件；800-线缆。
具体实施方式
下面将结合附图对本公开的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本公开保护的范围。
在本公开的描述中，需要说明的是，如出现术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等，其指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。此外，如出现术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
另外，在本公开实施例的描述中，除非另有明确的规定和限定，术语“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本公开中的具体含义。
如图1所示，本公开实施例提供的光扩散照明装置包括：扩散元件100和导光体200。
其中，扩散元件100采用一体成型技术制备而成，例如，采用模制或者注胶等方式。
扩散元件100包括基材110，以及分散在基材110内部的光扩散粒子120，其中，所述基材110的材料可以为PC、PMMA、PS等透明塑料，也可以是UV胶。
所述光扩散粒子120可以包括有机硅扩散粒子、PMMA交联微球扩散粒子、PS交联微球扩散粒子、无机的二氧化硅粒子和二氧化钛粒子中的至少一种，也就是说，基材110内分散的光扩散粒子120的种类可以单一，也可以为多种。
具体的，扩散元件100可以采用UV胶+光扩散粒子120一体成型制备而成，也可以为光扩散粒子120+透明的塑料一体成型。
进一步的，所述光扩散粒子120可以呈4π立体角环绕在导光体200周围，使得从导光体200出射的非激光经过扩散元件100中扩散剂多次散射，再出射从而扩大照明范围，并且多次散射与混光使得照明更加均匀。其中，提到的“呈4π立体角”可以为“基本呈4π立体角”，也就是说，整体上光扩散粒子120呈4π立体角，但由于制备工艺的限制，难免会出现略微角度的偏差。一体成型模制扩散元件100和导光体200呈立体环绕状，排布 位置不会影响其扩散效果和均匀性，无需等间隔排布限制，因此对导光体200的分布要求低。
在另外的可以实施的方案中，基材110上的光扩散粒子120可以采用胶粘的方式进行连接，也就是说，先形成基材110，基材110固化后，将光扩散粒子120粘贴在基材110表面。
如图9所示，光扩散粒子120所占比例会影响光照范围和均匀性，图9中的第一幅图是没有加光扩散粒子120的光照效果图，第二幅图和第三幅图加入光扩散粒子120后的光照效果图，相对比，后两幅图的光照范围更大，光照更均匀。
其中，连接区域130可以为凹孔或者凹槽，所述导光体200的出光端伸入到所述连接区域130内，出光端正对连接区域130的底面，且出光方向沿扩散元件100的背向朝向正面的方向。光进入到扩散元件100内后，会被扩散元件100内的光扩散粒子120多次散射，从而从各个角度、各个位置出射，提高了照明范围与均匀性。
扩散元件100与导光体200组装时，可以先制备扩散元件100，然后将导光体200插入到扩散元件100内，然后在连接区域130注入胶合剂，待胶合剂固化后，扩散元件100与导光体200紧密连接。
或者，在基材110的固化过程中，将扩散元件100插入，待基材110完全固化后，基材110将导光体200抱紧，采用此种制备方法，可以将基材110、光扩散粒子120和导光体200加工成一体结构。
综上，扩散元件100与导光体200组装时，无需弯曲导光体200，对导光体200类别没有限制，导光体200可以采用易碎的玻璃光纤或者塑料光纤。一体成型模制扩散部件简化了组装结构，无需歪曲导光体200组装，对导光体200材质没有特别的限制要求。
区别于现有技术的主要创新点在于本公开提供的装置中，扩散元件100的背面具有向正面凹陷的连接区域130，连接区域130形成了装配导光体200的空间，可以将导光体200伸入到扩散元件100的内部，完成扩散元件100与导光体200的固定连接，一方面，此种装配方法无需考虑扩散元件100和导光体200的亲水性，降低了对原材料的要求；另一方面，因为导光体200的一部分已经被限制在扩散元件100内了，所以，可以避免对装置进行二次加固密封，降低了组合成本。同时，因为导光体200伸入到扩散元件100内一部分，从导光体200发出的光在扩散元件100内被反复多次散射，不仅在导光体200前侧的一部分扩散元件100可以发光，在导光体200周向外侧的一部分扩散元件100也可以发光，大大的提高了照明范围与均匀性。
根据照明亮度的需求，装置中所述导光体200的数量可以为一条，也可以为至少为两条。当导光体200不止为一条时，这些导光体200可以位于同一连接区域130内或者多个 连接区域130内。
如图5所示，所述扩散元件100上具有贯穿背面和正面的安装孔，所述安装孔用于安装摄像机构300；且所述连接区域130位于所述安装孔的周向外侧。摄像头外侧的光照均匀，有助于术者观察体内情况。
如图2-图4所示，所述扩散元件100的正面可以为平面、斜弧面、圆弧面或者倒角平面。
如图5所示，扩散元件100的正面和背面可以均具有倒角，从而使光线从倒角位置处呈曲面均匀散射出去。
沿前后方向，扩散元件100背面的连接区域130的横截面的形状可以一致，也可以不一致，例如，如图6所示，连接区域130分为两部分，靠近背面的一部分的孔径与导光体200的孔径近似，导光体200从这部分穿入，靠近正面的一部分呈球形，直径大于另一部分的直径。
如图7和图8所示，扩散元件100外壁的横截面的形状可以为三角形。从而使周向侧壁的伞面均可以发光。
扩散元件100中与导光体200端面接触的部分厚度可以在0.1mm～5mm之间。
本公开提供的内窥镜包括上述的光扩散照明装置。因为本公开实施例提供的内窥镜引用了上述的光扩散照明装置，所以，本公开实施例提供的内窥镜也具备光扩散照明装置的优点。
如图10所示，内窥镜还包括摄像机构300、成像器400、手柄500、光源600、导管组件700和线缆800，其中，光源600可以设置在手柄500内，光扩散照明装置可以安装在导管组件700的远端，手柄500安装在导管组件700的近端。
摄像机构300安装在扩散元件100上，摄像机构300通过线缆800与手柄500外的成像器400连接，线缆800依次经过导管组件700和手柄500。
光源600发出的光通过导光体200和光扩散部件将光照射到目标位置，内窥镜头端的摄像机构300将接收到目标位置散射的光信号转换为电信号，通过传输线缆800传输到成像器400的图像处理装置，然后由成像器400将信号转换为影像信号并输出。
其中，因为本公开提供的光扩散照明装置可以实现充足的照明要求，因此，光源600可以为非激光光源600，非激光光源600通过导光体200将光束导入扩散元件100，光束通过扩散元件100的散射与混光再出射，对光源600的要求低。
所述的内窥镜可以是一次性胰胆成像导管，一次性使用支气管成像导管，一次性泌尿成像导管等一次性电子内窥镜或重复使用的内窥镜。
最后应说明的是：以上实施例，仅为本公开的具体实施方式，用以说明本公开的技术 方案，而非对其限制，本公开的保护范围并不局限于此，尽管参照前述实施例对本公开进行了详细的说明，本领域的普通技术人员应当理解：任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，其依然可以对前述实施例所记载的技术方案进行修改或可轻易想到变化，或者对其中部分技术特征进行等同替换；而这些修改、变化或者替换，并不使相应技术方案的本质脱离本公开实施例技术方案的精神和范围，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以权利要求的保护范围为准。
工业实用性
本公开提供了一种光扩散照明装置及内窥镜，涉及医疗器械的技术领域，光扩散照明装置包括：扩散元件和导光体，扩散元件的背面具有连接区域，导光体的出光端伸入到连接区域内。一方面，此种装配方法无需考虑扩散元件和导光体的亲水性，降低了对原材料的要求；另一方面，因为导光体的一部分已经被限制在扩散元件内了，所以，可以避免对装置进行二次加固密封，降低了组合成本。同时，因为导光体伸入到扩散元件内一部分，从导光体发出的光在扩散元件内被反复散射，不仅在导光体前侧的一部分扩散元件可以发光，在导光体周向外侧的一部分扩散元件也可以发光，大大的提高了照明范围及均匀性。
此外，可以理解的是，本公开的光扩散照明装置及内窥镜是可以重现的，并且可以用在多种工业应用中。例如，本公开的光扩散照明装置及内窥镜可以用于医疗器械技术领域。

Claims (10)

  1. 一种光扩散照明装置，其特征在于，包括：扩散元件(100)和导光体(200)，所述扩散元件(100)的背面具有连接区域(130)，所述导光体(200)的出光端通过所述连接区域(130)延申至所述扩散元件(100)内部。
  2. 根据权利要求1所述的光扩散照明装置，其特征在于，所述导光体(200)的数量至少为两条。
  3. 根据权利要求2所述的光扩散照明装置，其特征在于，所述扩散元件(100)上具有贯穿背面和正面的安装孔，所述安装孔用于安装摄像机构(300)；且所述连接区域(130)位于所述安装孔的周向外侧。
  4. 根据权利要求3所述的光扩散照明装置，其特征在于，所述扩散元件(100)包括一体成型的基材(110)以及分散在基材(110)内部的光扩散粒子(120)。
  5. 根据权利要求3所述的光扩散照明装置，其特征在于，所述扩散元件(100)包括基材(110)、以及通过粘结剂粘贴在基材(110)上的光扩散粒子(120)。
  6. 根据权利要求4所述的光扩散照明装置，其特征在于，所述光扩散粒子(120)呈4π立体角环绕在导光体(200)周围；
    或者，所述光扩散粒子(120)呈类4π立体角或者基本呈4π立体角环绕在导光体(200)周围。
  7. 根据权利要求4所述的光扩散照明装置，其特征在于，所述光扩散粒子(120)包括有机硅扩散粒子、PMMA交联微球扩散粒子、PS交联微球扩散粒子、无机的二氧化硅粒子和二氧化钛粒子中的至少一种。
  8. 根据权利要求1所述的光扩散照明装置，其特征在于，所述扩散元件(100)的正面为平面、斜弧面、圆弧面或者倒角平面。
  9. 一种内窥镜，其特征在于，包括权利要求1-8任意一项所述的光扩散照明装置。
  10. 根据权利要求9所述的内窥镜，其特征在于，所述内窥镜还包括设置于导光体(200)进光端的光源(600)。
PCT/CN2023/127922 2023-04-03 2023-10-30 光扩散照明装置及内窥镜 WO2024207716A1 (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120051693A1 (en) * 2010-08-31 2012-03-01 Fujifilm Corporation Light diffusing element and light guide for endoscopes equipped with the light diffusing element
CN105105700A (zh) * 2015-09-15 2015-12-02 李安 电子内窥镜及其照明结构、照明方法
CN110897597A (zh) * 2019-11-26 2020-03-24 珠海普生医疗科技有限公司 一种内窥镜
CN113974528A (zh) * 2021-12-27 2022-01-28 杭州思康新医疗科技有限公司 一种内窥镜模组的模组前端装置
CN116350159A (zh) * 2023-04-03 2023-06-30 南微医学科技股份有限公司 光扩散照明装置及内窥镜
CN219557234U (zh) * 2023-04-03 2023-08-22 南微医学科技股份有限公司 光扩散照明装置及内窥镜

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120051693A1 (en) * 2010-08-31 2012-03-01 Fujifilm Corporation Light diffusing element and light guide for endoscopes equipped with the light diffusing element
CN105105700A (zh) * 2015-09-15 2015-12-02 李安 电子内窥镜及其照明结构、照明方法
CN110897597A (zh) * 2019-11-26 2020-03-24 珠海普生医疗科技有限公司 一种内窥镜
CN113974528A (zh) * 2021-12-27 2022-01-28 杭州思康新医疗科技有限公司 一种内窥镜模组的模组前端装置
CN217907702U (zh) * 2021-12-27 2022-11-29 杭州思康新医疗科技有限公司 一种内窥镜模组的模组前端装置
CN116350159A (zh) * 2023-04-03 2023-06-30 南微医学科技股份有限公司 光扩散照明装置及内窥镜
CN219557234U (zh) * 2023-04-03 2023-08-22 南微医学科技股份有限公司 光扩散照明装置及内窥镜

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