WO2021135464A1 - 眼科裂隙灯附加角膜投影装置 - Google Patents

眼科裂隙灯附加角膜投影装置 Download PDF

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WO2021135464A1
WO2021135464A1 PCT/CN2020/118789 CN2020118789W WO2021135464A1 WO 2021135464 A1 WO2021135464 A1 WO 2021135464A1 CN 2020118789 W CN2020118789 W CN 2020118789W WO 2021135464 A1 WO2021135464 A1 WO 2021135464A1
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slit lamp
projection device
corneal
corneal projection
projection apparatus
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PCT/CN2020/118789
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English (en)
French (fr)
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王奕
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重庆康华瑞明科技股份有限公司
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/13—Ophthalmic microscopes
    • A61B3/135—Slit-lamp microscopes

Definitions

  • the invention relates to the field of medical equipment, in particular to an ophthalmic slit lamp additional corneal projection device.
  • Slit lamp microscope (referred to as slit lamp) is an indispensable and important instrument for ophthalmology examinations, and it is also the most widely used basic instrument for routine ophthalmology examinations.
  • the structure of the slit lamp is mainly composed of two parts, namely the "slit lamp” and the "microscope".
  • the specific structure includes: a slit lighting mechanism, a microscope optical body, a mobile platform mechanism, and a chinrest mechanism.
  • the slit illumination mechanism is to illuminate the eyes with uniform circular light and slit light.
  • the optical body has multiple zoom magnifications, and it also rotates around the illumination axis to keep the distance from the optical body to the eye constant when rotating;
  • the moving platform mechanism carries the microscope optical body and the slit illumination mechanism to move in 3 coordinate directions for alignment Observe the target;
  • the chinrest mechanism is the mechanism where the patient places his head for examination.
  • the corneal projection device is attached to the slit lamp microscope and placed between the eye and the microscope optical body during operation, so that the optical axis of the projection device coincides with the imaging optical axis of the slit lamp, and performs ocular surface illumination (visible light and infrared light) or on the ocular surface Projection lighting graphics (bright ring, etc.), used for various inspections of "dry eye” disease (tear river height measurement, tear film rupture time measurement, quantitative analysis of meibomian gland loss, lipid layer level evaluation, eye margin analysis, ashamed analysis).
  • the corneal projection device is installed in the inner hole of the slit lamp illumination shaft, the advantage is: the interface is ready, and no major modification of the slit lamp is required.
  • the disadvantages are: a.
  • the corneal projection device installed in the inner hole of the slit lamp lighting shaft is on the channel where the slit lamp lighting mechanism rotates. After the device is placed, the slit lamp lighting mechanism cannot be used. To use the slit lamp lighting mechanism, the device needs to be removed. Relocate for storage, frequent installation and storage cause inconvenience; b.
  • the light imaging optical axis can work normally, causing inconvenience; c.
  • the inner hole of the slit lamp illumination shaft is generally used for plugging in the focus stick, and the interface is occupied by the device.
  • plugging the focus stick the device must be removed; d.
  • the control line of the device is exposed. , When in use, it must be installed together with the cable. When not in use, the device and the cable are stored in the storage box. Frequent installation and removal can easily lead to unreliable connections. At the same time, the exposed wires are also easy to break; e. The appearance is not tidy. , Not beautiful, the state of informal products.
  • the corneal projection device is connected to the upper part of the slit lamp optical body.
  • the disadvantages are a. It affects the use of other configurations attached to the upper part of the optical body. For example, the applanation tonometer hung on the upper part of the optical body cannot be used. Another example is the gap between the device and the upward design. The digital spectrophotographic components of the lamp interfere, and the device cannot be installed; b. The device is installed on the upper part of the optical body, and the cable routing must go through the optical body to the lower part, increasing the length of the routing and the complexity of the routing, which is not conducive to production and process Poor performance, reducing the reliability of the equipment; c.
  • the upper space is limited and the center of gravity is high, which is not conducive to the control of the equipment. d. Due to the limited upper space (the center of gravity is too high), it is not conducive to the upgrading of the structure, and for the subsequent automation of the device , Intelligent development, has produced restrictions.
  • the present invention proposes an ophthalmic slit lamp additional corneal projection device.
  • the specific technical solutions are as follows:
  • An ophthalmic slit lamp additional corneal projection device which is characterized in that it comprises a corneal projection device (1), a slit lamp microscope optical body (2) and a slit lamp bending arm (4);
  • the corneal projection device (1) is connected to the lower part of the optical body part (2) of the slit lamp microscope to move along with the optical body of the slit lamp.
  • the corneal projection device (1) can also be connected to both sides of the slit lamp bending arm (4), and move with the slit lamp optical body.
  • the corneal projection device (1) can be retracted (rotated) to the non-working position while keeping the connection state when not in use (the projection device is removed from the slit lamp imaging light path, and does not affect the position where the slit lamp is used. ), this position does not affect all the functions of the slit lamp microscope; when the corneal projection device (1) needs to be used, it is released (rotated) to the working position (the position where the optical axis of the projection device coincides with the imaging optical axis of the slit lamp).
  • the beneficial effects of the present invention are as follows: the overall structure is simple, the mass production is convenient, the performance is reliable, the cost is low, and the advantages are obvious.
  • the corneal projection device rotates synchronously with the optical body of the slit lamp, allowing multi-angle observation of the cornea; the corneal projection device is put into the working position when in use, and turned out of the working position when not in use, without affecting the use of other functions of the slit lamp
  • the wiring of the corneal projection device is hidden, and the appearance is neat and beautiful; the production, debugging, and maintenance of the corneal projection device are very convenient.
  • Figure 1 is a structural diagram of the working position of the device of the present invention connected to the lower part of the optical body;
  • Figure 2 is a cross-sectional view of the present invention
  • Figure 3 is a schematic diagram of use
  • Figure 4 is a structural diagram of the working position of the device connected to the right side of the curved arm of the present invention.
  • corneal projection device 1 located in the working position
  • corneal projection device 1-1 located in the non-working position on the right
  • corneal projection device 1-2 located in the non-working position on the left
  • slit lamp microscope optical body 2 located in the working position
  • slit light source Projection device 3 located in the non-working position on the left
  • curved arm 4 located in the non-working position on the left
  • rotating shaft 5 rotating axis 6.
  • Embodiment 1 as shown in Figs. 1 to 3: an ophthalmic slit lamp additional corneal projection device, including a corneal projection device 1, a slit lamp microscope optical body 2, a slit light source projection device 3, and a slit lamp bending arm 4.
  • the corneal projection device 1 is connected to the lower part of the optical body 2 of the slit lamp microscope, and moves along with the optical body of the slit lamp.
  • the corneal projection device 1 can be rotated to the non-working position when it is not in use (the projection device is removed from the slit lamp imaging light path and does not affect the position where the slit lamp is used), and will not interfere with ophthalmology
  • the normal use of the slit light source projection device 3 of the slit lamp microscope inspector does not affect all the functions of the slit lamp microscope at this position.
  • release (rotate) to the working position (the optical axis of the projection device and the slit The position where the light imaging optical axis coincides).
  • the corneal projection device is connected to the lower part of the slit lamp optical body 2, and a rotating shaft 5 is arranged in the device.
  • the device 1 rotates around the rotation axis 6 of the rotating shaft 5, so that the device rotates from the working position 1 to the right non-working position 1-1 (Or non-working position 1-2 on the left), the function of using the slit lamp will not be affected in this position.
  • the corneal projection device If the corneal projection device is to be used, it can be rotated around the shaft 5 to the working position 1 to perform work.
  • the device installed in the lower part of the optical body can be rotated left and right.
  • Embodiment 2 (this embodiment is an example in which the rotation axis of “Embodiment 1” is shifted to the right, and the connection position is on the right side of the curved arm of the slit lamp), as shown in Figure 4: an ophthalmic slit lamp additional corneal projection device, Including corneal projection device, slit lamp microscope optical body, slit lamp bending arm. The corneal projection device is connected to the right side of the curved arm of the slit lamp and moves along with the optical body of the slit lamp.
  • the corneal projection device is connected to the right side of the slit lamp bending arm, and a rotating shaft is arranged in the device.
  • the device rotates around the rotation axis 6 (see Figure 4), so that the device rotates from the working position to the right non-working position, in this position Does not affect the function of using the slit lamp. If you want to use the corneal projection device, it can be rotated around the shaft to the working position for work.
  • the device is installed on the right side of the optical body and can only be rotated to the right, but the distance between the device and the optical body in the non-working position is increased.
  • the corneal projection device rotates synchronously with the optical body of the slit lamp, allowing multi-angle observation of the cornea; the corneal projection device is put into the working position when in use, and turned out of the working position when not in use, without affecting the use of other functions of the slit lamp .
  • the wiring of the corneal projection device is hidden, and the appearance is neat and beautiful; the production, debugging, and maintenance of the corneal projection device are very convenient.

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Abstract

一种眼科裂隙灯附加角膜投影装置，包括角膜投影装置、裂隙灯显微镜光学体和裂隙灯弯臂；所述角膜投影装置，连接在裂隙灯显微镜光学体部件的下部（或弯臂左、右两面）。所述角膜投影装置在不被使用时可在保持连接状态下收回（转动）到非工作位置，并不会有妨碍于眼科裂隙灯显微镜检查仪的裂隙光源投射装置的正常使用，需要使用所述角膜投影装置时，释放（转动）到工作位置。眼科裂隙灯附加角膜投影装置，整体结构简单，便于大规模生产，性能可靠、成本低、优点明显、生产、调试、维修都很方便。

Description

眼科裂隙灯附加角膜投影装置 技术领域
本发明涉及医疗设备领域，具体涉及眼科裂隙灯附加角膜投影装置。
背景技术
裂隙灯显微镜(简称裂隙灯)，是眼科检查必不可是少的重要仪器，也是眼科常规检查的用途第一广泛的基础仪器。裂隙灯的构造主要由两部分构成，即“裂隙灯”与“显微镜”。具体结构包括：裂隙照明机构、显微镜光学体、移动平台机构、腮托机构组成。裂隙照明机构是对眼睛进行均匀的圆形光照明和裂隙光照明，它会绕照明转轴旋转，使得照明机构从左侧到右侧之间切换，转动时保持光到眼睛的距离不变；显微镜光学体具有多个变倍倍率，它也会绕照明转轴旋转，转动时保持光学体到眼睛的距离不变；移动平台机构承载显微镜光学体和裂隙照明机构进行3坐标方向移动，以此对准观察目标；腮托机构是病人放置头部进行检查的机构。
角膜投影装置附加在裂隙灯显微镜上，工作时放置在眼睛与显微镜光学体之间，使得投影装置光轴与裂隙灯成像光轴重合位置，进行眼表照明(可见光和红外光)或在眼表投影照明图形(亮环等)，用于“干眼”病症的各项检查(泪河高度测量、泪膜破裂时间测量、睑板腺缺失量化分析、脂质层等级评估、眼缘分析、眼红分析)。
现在把角膜投影装置安装在裂隙灯照明转轴内孔，优点是：接口现成的，不需对裂隙灯进行较大的修改。缺点有a.安装在裂隙灯照明转轴内孔的角膜投影装置在裂隙灯照明机构转动的通道上，放置装置后，裂隙灯照明机构不能使用，要使用裂隙灯照明机构，就需取下装置，重新找位置进行收纳，频繁的安装和收纳造成使用不便；b.当光学体左右转动时，装置没有进行同步转动，它的工作状态被破坏，需要重新进行装置的位置调整，是它对正裂隙灯成像光轴，才能正常工作，造成不便；c.裂隙灯照明转轴内孔一般用于插 接对焦棒，接口被装置占用，插接对焦棒时要取下装置；d.装置的控制线外露，在使用时要连同线一起安装，不使用时装置连同线一起收纳到收纳盒内，频繁的安装、取出，容易造成连线的不可靠，同时线路外露也容易折断；e.外观也不整洁、不美观，非正规产品的状态。
角膜投影装置连接在裂隙灯光学体上部，缺点是a.影响附加在光学体上部的其它配置的使用，例如挂在光学体上部的压平眼压计不能使用，又例如装置与向上设计的裂隙灯数码分光拍照部件产生干涉，装置不能安装；b.装置装在光学体上部，线缆走线要穿过光学体走到下部，增加走线长度和走线的复杂程度，不利于生产，工艺性不好，减低设备的可靠性；c.上部空间有限，重心较高，不利于设备的操控，d.由于上部空间受限(重心过高)，不利于结构的升级，对于装置后续的自动化、智能化发展，产生了限制。
裂隙灯显微镜光学体下部位置、裂隙灯弯臂两侧位置目前没有安装其它附加装置，可以被用来安装角膜投影装置，解决上述空间过小、重心过高、接口被占用、使用不方便等问题。
发明内容
本发明针对现有技术的不足，提出眼科裂隙灯附加角膜投影装置，具体技术方案如下：
一种眼科裂隙灯附加角膜投影装置，其特征在于：包括角膜投影装置(1)、裂隙灯显微镜光学体(2)和裂隙灯弯臂(4)；
所述角膜投影装置(1)连接在裂隙灯显微镜光学体部件(2)的下部随着裂隙灯光学体一起运动。
可进一步为：所述角膜投影装置(1)还可以连接在裂隙灯弯臂(4)的两侧面，随着裂隙灯光学体一起运动。
可进一步为：所述角膜投影装置(1)在不被使用时可在保持连接状态下收回(转动)到非工作位置(投影装置从裂隙灯成像光路中移除，不影响裂 隙灯使用的位置)，在此位置不影响裂隙灯显微镜的所有功能；需要使用所述角膜投影装置(1)时，释放(转动)到工作位置(投影装置光轴与裂隙灯成像光轴重合位置)。
本发明的有益效果为：整体结构简单，便于大规模生产，性能可靠、成本低、优点明显。角膜投影装置随着裂隙灯光学体进行同步的转动，可以进行眼角膜的多角度观察；角膜投影装置在使用时投入到工作位置，不使用时转出工作位置，不影响裂隙灯的其它功能使用；角膜投影装置的走线进行隐藏处理，外观整洁、美观；角膜投影装置的生产、调试、维修都很方便。
附图说明
图1为本发明装置连接在光学体下部工作位置结构图；
图2为本发明剖视图；
图3为使用示意图；
图4为本发明装置连接在弯臂右侧工作位置结构图；
附图说明标记为，位于工作位置的角膜投影装置1、位于右面非工作位置的角膜投影装置1-1、位于左面非工作位置的角膜投影装置1-2、裂隙灯显微镜光学体2、裂隙光源投射装置3、弯臂4、转轴5、转动轴线6。
本发明的较佳实施方式
下面结合附图对本发明的较佳实施例进行详细阐述，以使本发明的优点和特征能更易于被本领域技术人员理解，从而对本发明的保护范围做出更为清楚明确的界定。
1.实施例一，如图1至图3所示：一种眼科裂隙灯附加角膜投影装置，包括角膜投影装置1、裂隙灯显微镜光学体2、裂隙光源投射装置3、裂隙灯弯臂4。所述角膜投影装置1，连接在裂隙灯显微镜光学体2部件的下部，随 着裂隙灯光学体一起运动。
所述角膜投影装置1在不被使用时可在保持连接状态下转动到非工作位置(投影装置从裂隙灯成像光路中移除，不影响裂隙灯使用的位置)，并不会有妨碍于眼科裂隙灯显微镜检查仪的裂隙光源投射装置3的正常使用，在此位置不影响裂隙灯显微镜的所有功能，需要使用所述角膜投影装置时，释放(转动)到工作位置(投影装置光轴与裂隙灯成像光轴重合位置)。
本发明原理：角膜投影装置连接在裂隙灯光学体2下部，装置内设置有转轴5，装置1绕着转轴5的转动轴线6旋转，使得装置从工作位置1转动到右面非工作位置1-1(或者左面非工作位置1-2)，在此位置不受影响使用裂隙灯的功能。如果要使用角膜投影装置，可绕着转轴5旋转到工作位置1，进行工作。装置安装在光学体下部的可以左右转动。
2.实施例二(本实施例是“实施例一”转轴偏移到右面，连接位置在裂隙灯弯臂右侧的实例)，如图4所示：一种眼科裂隙灯附加角膜投影装置，包括角膜投影装置、裂隙灯显微镜光学体、裂隙灯弯臂。所述角膜投影装置，连接在裂隙灯弯臂的右侧面，随着裂隙灯光学体一起运动。
本发明原理：角膜投影装置连接在裂隙灯弯臂右侧，装置内设置有转轴，装置绕着转动轴线6旋转(见图4)，使得装置从工作位置转动到右面非工作位置，在此位置不影响使用裂隙灯的功能。如果要使用角膜投影装置，可绕着转轴旋转到工作位置，进行工作。装置安装在光学体右侧只能向右转动，但是增大了装置在非工作位置与光学体的距离。
工业实用性
角膜投影装置随着裂隙灯光学体进行同步的转动，可以进行眼角膜的多角度观察；角膜投影装置在使用时投入到工作位置，不使用时转出工作位置，不影响裂隙灯的其它功能使用。角膜投影装置的走线进行隐藏处理，外观整 洁、美观；角膜投影装置的生产、调试、维修都很方便。

Claims (3)

  1. 一种眼科裂隙灯附加角膜投影装置，其特征在于：包括角膜投影装置、裂隙灯显微镜光学体和裂隙灯弯臂；
    所述角膜投影装置连接在裂隙灯显微镜光学体部件的下部，随着裂隙灯光学体一起运动。
  2. 根据权利要求1所述角膜投影装置，其特征在于：所述角膜投影装置还可以连接在裂隙灯弯臂的两侧面，随着裂隙灯光学体一起运动。
  3. 根据权利要求1所述角膜投影装置，其特征在于：所述角膜投影装置在不被使用时可在保持连接状态下收回(转动)到非工作位置(投影装置从裂隙灯成像光路中移除，不影响裂隙灯使用的位置)，在此位置不影响裂隙灯显微镜的所有功能；需要使用所述角膜投影装置时，释放(转动)到工作位置(投影装置光轴与裂隙灯成像光轴重合位置)。
PCT/CN2020/118789 2020-01-03 2020-09-29 眼科裂隙灯附加角膜投影装置 WO2021135464A1 (zh)

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CN112274106A (zh) * 2020-06-23 2021-01-29 重庆康华瑞明科技股份有限公司 一种干眼检查装置的电动收放机构和电动调节机构

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