Novel indirect ophthalmoscope

Abstract

The invention discloses a novel indirect ophthalmoscope which comprises a shell, a light source, a display screen, an image sensor, an adjusting mechanism, a first lens, an adjusting sleeve, a first mounting shell, a second mounting shell and a second lens. Adjusting mechanisms are arranged at the lower ends of the light source and the image sensor; the adjusting mechanism comprises a top plate, a plurality of grating plates, a mounting plate, a transmission gear and an adjusting gear; the mounting plate is fixedly connected with the inner wall of the shell. A plurality of sliding groove mounting grating plates are arranged at the upper end of the mounting plate in an array mode. The upper portion of the top plate is rotationally connected with a light source or an image sensor, and the outer wall of the top plate is provided with a gear connected with a transmission gear. The transmission gear is rotationally connected with the shell, one side of the transmission gear is meshed with the top plate, and the other side of the transmission gear is meshed with the adjusting gear; and the adjusting gear is rotationally connected with the shell.

Description

Technical Field

[0001] The present invention relates to the technical field of ophthalmic examination instruments, in particular to a novel indirect ophthalmoscope. Background Art

[0002] An indirect ophthalmoscope is an important tool used by ophthalmologists to examine the fundus. It uses optical principles to illuminate the fundus with an external light source and observe with a high-magnification lens, clearly displaying fundus details such as retinal blood vessels and the macular area, helping doctors assess fundus conditions. It helps doctors promptly detect and diagnose various fundus diseases, such as retinal detachment, diabetic retinopathy, and macular degeneration. Retinal detachment requires the assistance of an indirect ophthalmoscope to assist medical staff in performing surgery.

[0003] However, since the images seen by indirect ophthalmoscopy are inverted, medical staff need a lot of practice to master the surgical skills, which increases the difficulty of the operation.

[0004] Furthermore, in the prior art, in order to ensure the clarity of the image, it is necessary to repeatedly adjust the light intensity, light range, and the distance between the lenses, which is cumbersome to operate and increases the operation time.

[0005] Therefore, the present invention discloses a novel indirect ophthalmoscope to solve the above technical problems. Summary of the Invention

[0006] In order to solve the drawbacks of the prior art, the present invention is achieved through the following technical solutions:

[0007] A novel indirect ophthalmoscope comprises: a housing, a light source, a display screen, an image sensor, an adjustment mechanism, a first lens, an adjustment sleeve, a first mounting housing, a second mounting housing, and a second lens;

[0008] A display screen is provided at the upper end of the housing, a detachable light source is provided on one side of the upper portion of the housing, and an image sensor is detachably provided on the other side of the upper portion of the housing;

[0009] The middle of the shell is provided with a through hole for slidingly mounting the mounting shell 1, the lower end of the shell is symmetrically provided with a circular hole for mounting the mounting shell 2, and the outer wall of the shell is threadedly connected to the adjusting sleeve;

[0010] The lower ends of the light source and the image sensor are both provided with adjustment mechanisms;

[0011] The adjustment mechanism includes a top plate, a plurality of grating plates, a mounting plate, a transmission gear, and an adjustment gear; the mounting plate is fixedly connected to the inner wall of the housing, and a plurality of slide grooves are arranged in an array on the upper end of the mounting plate to mount the grating plates; the upper end of the top plate is rotatably connected to the light source or image sensor, the outer wall of the top plate is provided with a gear connected to the transmission gear, and the lower end of the top plate is provided with a plurality of square grooves in an array to connect the grating plates; the transmission gear is rotatably connected to the housing, and one side of the transmission gear engages the top plate, and the other side of the transmission gear engages the adjustment gear; the adjustment gear is rotatably connected to the housing;

[0012] Furthermore, the image sensor is a CCD sensor or a CMOS sensor;

[0013] Furthermore, a lens 1 can be detachably mounted on the middle portion of the mounting housing 1;

[0014] Square rods are provided on both sides of the mounting housing to pass through holes for engaging with the adjusting sleeves;

[0015] Furthermore, the middle portion of the second mounting housing is provided with a detachable lens, and the upper end of the second mounting housing is provided with screws symmetrically;

[0016] Furthermore, the lower end of the shell is symmetrically provided with through holes, and the lower end of the through holes is provided with a screw sleeve threadedly connected to a screw that rotates in situ;

[0017] Furthermore, the grating plate is a triangular plate, a cylinder is provided on the upper rear end of the grating plate to connect to the top plate, and a square rod is provided on the lower rear end of the grating plate to connect to the mounting plate;

[0018] Furthermore, the display screen is connected to the image sensor circuit, and the image monitored by the image sensor is displayed through the display, and the display screen has functions such as image flipping, mirroring, and rotation.

[0019] The beneficial effects of the present invention are:

[0020] The present invention addresses the drawbacks of the novel indirect ophthalmoscope in the prior art and discloses a novel indirect ophthalmoscope, comprising: a housing, a light source, a display screen, an image sensor, an adjustment mechanism, a first lens, an adjustment sleeve, a first mounting housing, a second mounting housing, and a second lens;

[0021] An adjustment mechanism is provided; the adjustment mechanism includes: a top plate, a plurality of grating plates, a mounting plate, a transmission gear, and an adjustment gear. By manually turning the adjustment gear, the adjustment gear drives the transmission gear to rotate and pushes the top plate to rotate, thereby controlling the grating plates to slide in the slide grooves, so that the front ends of the plurality of grating plates are formed into circular holes of different diameters, thereby adjusting the illumination range of the light source and the image receiving range of the image sensor;

[0022] An adjustment sleeve, a mounting housing 1, a lens 1, a screw sleeve, a mounting housing 2, and a lens 2 are provided; the lens 1 is stably mounted by the mounting housing 1, and the operator rotates the adjustment sleeve to adjust the distance between the lens 1 and the light source, the image sensor, and the lens 2 by moving the adjustment sleeve up and down; the lens 2 is stably mounted by the housing 2, and the operator rotates the sleeve to control the up and down movement of the mounting housing 2 to adjust the distance between the lens 2 and the eyeball and the lens 1; this solves the problem in the prior art of repeatedly adjusting the light intensity, the light range, and the distance between the lenses, which is cumbersome to operate, increases the surgical time, and affects the surgical efficiency;

[0023] In addition, in the present invention, an image sensor and a display screen are provided, and the fundus image is displayed clearly and distinctly through a display screen with functions such as image flipping, mirroring, and rotation, thereby avoiding the problem that the image seen by the indirect ophthalmoscope in the prior art is an inverted image. Medical staff need a lot of practice to master the surgical skills, which increases the difficulty of operation for medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0025] Figure 1 This is a schematic diagram of the cross-sectional structure of a new type of indirect ophthalmoscope;

[0026] Figure 2 This is a schematic diagram of the overall structure of a new type of indirect ophthalmoscope;

[0027] Figure 3 It is a schematic diagram of the partial cross-section structure of a new type of indirect ophthalmoscope;

[0028] Figure 4 It is a schematic diagram of the partial cross-section structure of a new type of indirect ophthalmoscope;

[0029] Figure 5 This is a schematic diagram of the structure of the top plate of a new indirect ophthalmoscope;

[0030] Figure 6 This is a schematic diagram of the structure of the grating plate of a new type of indirect ophthalmoscope;

[0031] Figure 7 It is a schematic diagram of the structure of a mounting plate of a new indirect ophthalmoscope;

[0032] Figure 8 This is a schematic diagram of the working principle of a new type of indirect ophthalmoscope.

[0033] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0034] 1-housing, 101-circular hole, 102-through hole, 103-screw sleeve, 2-display screen, 3-light source, 4-image sensor, 5-adjustment mechanism, 6-mounting housing 1, 601-adjustment sleeve, 602-lens 1, 7-mounting housing 2, 701-screw, 702-lens 2. DETAILED DESCRIPTION

[0035] In order to solve the problems existing in the new indirect ophthalmoscope of the prior art, the present invention discloses a new indirect ophthalmoscope, comprising: a housing 1, a light source 3, a display screen 2, an image sensor 4, an adjustment mechanism 5, a lens 1 602, an adjustment sleeve 601, a mounting housing 1 6, a mounting housing 2 7, and a lens 2 702;

[0036] The upper end of the housing 1 is provided with a display screen 2, one side of the upper portion of the housing 1 is provided with a detachable light source 3, and the other side of the upper portion of the housing 1 is provided with a detachable image sensor 4;

[0037] The middle of the housing 1 is provided with a through hole 102 for slidingly mounting the mounting housing 1 6, and the lower end of the housing 1 is symmetrically provided with a circular hole 101 for mounting the mounting housing 2 7, and the outer wall of the housing 1 is threadedly connected to the adjusting sleeve 601;

[0038] The lower ends of the light source 3 and the image sensor 4 are both provided with an adjustment mechanism 5;

[0039] The adjustment mechanism 5 includes a top plate, a plurality of grating plates, a mounting plate, a transmission gear, and an adjustment gear; the mounting plate is fixedly connected to the inner wall of the housing 1, and a plurality of slide grooves are arranged in an array on the upper end of the mounting plate to mount the grating plates; the upper end of the top plate is rotatably connected to the light source 3 or the image sensor 4, the outer wall of the top plate is provided with a gear connected to the transmission gear, and the lower end of the top plate is provided with a plurality of square grooves in an array to connect the grating plates; the transmission gear is rotatably connected to the housing 1, and one side of the transmission gear engages the top plate, and the other side of the transmission gear engages the adjustment gear; the adjustment gear is rotatably connected to the housing 1;

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] Example 1

[0042] refer to Figure 1-8 The figure shows the structure and principle diagram of the novel indirect ophthalmoscope of the present invention. In the invention, a housing 1, a light source 3, a display screen 2, an image sensor 4, an adjustment mechanism 5, a lens 1 602, an adjustment sleeve 601, a mounting housing 1 6, a mounting housing 2 7, and a lens 2 702 are provided.

[0043] The upper end of the housing 1 is provided with a display screen 2, one side of the upper portion of the housing 1 is provided with a detachable light source 3, and the other side of the upper portion of the housing 1 is provided with a detachable image sensor 4;

[0044] The middle of the housing 1 is provided with a through hole 102 for slidingly mounting the mounting housing 1 6, and the lower end of the housing 1 is symmetrically provided with a circular hole 101 for mounting the mounting housing 2 7, and the outer wall of the housing 1 is threadedly connected to the adjusting sleeve 601;

[0045] The lower ends of the light source 3 and the image sensor 4 are both provided with an adjustment mechanism 5;

[0046] The adjustment mechanism 5 includes a top plate, a plurality of grating plates, a mounting plate, a transmission gear, and an adjustment gear; the mounting plate is fixedly connected to the inner wall of the housing 1, and a plurality of slide grooves are arranged in an array on the upper end of the mounting plate to mount the grating plates; the upper end of the top plate is rotatably connected to the light source 3 or the image sensor 4, the outer wall of the top plate is provided with a gear connected to the transmission gear, and the lower end of the top plate is provided with a plurality of square grooves in an array to connect the grating plates; the transmission gear is rotatably connected to the housing 1, and one side of the transmission gear engages the top plate, and the other side of the transmission gear engages the adjustment gear; the adjustment gear is rotatably connected to the housing 1;

[0047] In this embodiment, the image sensor 4 is a CCD sensor or a CMOS sensor, including but not limited to KEYENCE's new image recognition sensor IV2 series sensor;

[0048] In this embodiment, a lens 602 is detachably mounted in the middle of the mounting housing 6;

[0049] The mounting housing 1 is provided with square rods passing through holes 102 on both sides thereof for engaging with the adjusting sleeve 601;

[0050] In this embodiment, a second lens 702 is detachably mounted in the middle of the second mounting housing 7, and a screw 701 is symmetrically arranged on the upper end of the second mounting housing 7;

[0051] In this embodiment, the housing 1 has a through hole 102 symmetrically formed at the lower end thereof, and a screw sleeve 103 that rotates in situ and is threadedly connected to the screw 701 is provided at the lower end thereof;

[0052] In this embodiment, the grating plate is a triangular plate, a cylinder is provided on the upper rear end of the grating plate to connect to the top plate, and a square rod is provided on the lower rear end of the grating plate to connect to the mounting plate;

[0053] In this embodiment, the display screen 2 is connected to the image sensor 4 circuit, and the image detected by the image sensor 4 is displayed through the display. The display screen 2 has functions such as image flipping, mirroring, and rotation. The display screen 2 is conventional existing technology and will not be described in detail.

[0054] In this embodiment, an adjustment mechanism 5 is provided; the adjustment mechanism 5 includes: a top plate, a plurality of grating plates, a mounting plate, a transmission gear, and an adjustment gear. By manually turning the adjustment gear, the adjustment gear drives the transmission gear to rotate and drives the top plate to rotate, thereby controlling the grating plates to slide in the slide grooves, so that the front ends of the plurality of grating plates are formed into circular holes 101 of different diameters, thereby adjusting the illumination range of the light source 3 and the image receiving range of the image sensor 4.

[0055] In this embodiment, an adjustment sleeve 601, a mounting housing 16, a lens 1602, a screw sleeve 103, a mounting housing 27, and a lens 2702 are provided; the lens 1602 is stably mounted by the mounting housing 16, and the operator rotates the adjustment sleeve 601 to adjust the distance between the lens 1602 and the light source 3, the image sensor 4, and the lens 2702 by moving the adjustment sleeve 601 up and down; the lens 2702 is stably mounted by the housing 12, and the operator rotates the sleeve to control the up and down movement of the mounting housing 27 to adjust the distance between the lens 2702 and the eyeball and the lens 1602. This solves the problem in the prior art of repeatedly adjusting the light intensity, the light range, and the distance between the lenses, which is cumbersome to operate, increases the operation time, and affects the efficiency of the operation.

[0056] In this embodiment, and in the present invention, an image sensor 4 and a display screen 2 are provided, and the fundus image is displayed clearly and distinctly through the display screen 2 having functions such as image flipping, mirroring, and rotation, thereby avoiding the problem that the image seen by the indirect ophthalmoscope in the prior art is an inverted image, and medical staff need a lot of practice to master the surgical skills, which increases the difficulty of operation for medical staff.

[0057] In summary, the novel indirect ophthalmoscope disclosed in the present invention is provided with an adjustment mechanism 5, an adjustment sleeve 601, and a sleeve, which enable rapid adjustment of the illumination range and the light sensing range of the image sensor 4, as well as rapid adjustment of the distance between the first lens 602 and the light source 3 and the image sensor 4, and between the second lens 702. The sleeve can also be used to control the distance between the second lens 702 and the eyeball, and the first lens 602, thereby resolving the problems of the prior art such as cumbersome adjustment, low adaptability, and low practicality of the device.

[0058] In addition, an image sensor 4 and a display screen 2 are provided, and the fundus image is displayed clearly and distinctly through the display screen 2 having functions such as image flipping, mirroring, and rotation, thereby avoiding the problem that the image seen by the indirect ophthalmoscope in the prior art is an inverted image. Medical staff need a lot of practice to master the surgical skills, which increases the difficulty of operation for medical staff.

[0059] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the invention to only the specific implementation methods described.

Claims

1. A new indirect ophthalmoscope, characterized in that: include: Housing, light source, display screen, image sensor, adjustment mechanism, lens 1, adjustment sleeve, mounting housing 1, mounting housing 2, lens 2; A display screen is provided at the upper end of the housing, a detachable light source is provided on one side of the upper portion of the housing, and an image sensor is detachably provided on the other side of the upper portion of the housing; The middle of the shell is provided with a through hole for slidingly mounting the mounting shell 1, the lower end of the shell is symmetrically provided with a circular hole for mounting the mounting shell 2, and the outer wall of the shell is threadedly connected to the adjusting sleeve; The lower ends of the light source and the image sensor are both provided with adjustment mechanisms; The adjustment mechanism includes a top plate, several grating plates, a mounting plate, a transmission gear, and an adjustment gear; the mounting plate is fixedly connected to the inner wall of the shell, and a plurality of slide grooves are arranged in an array on the upper end of the mounting plate to mount the grating plates; the upper end of the top plate is rotatably connected to the light source or image sensor, the outer wall of the top plate is provided with a gear connected to the transmission gear, and the lower end of the top plate is provided with a plurality of square grooves in an array to connect the grating plates; the transmission gear is rotatably connected to the shell, and one side of the transmission gear engages with the top plate, and the other side of the transmission gear engages with the adjustment gear; the adjustment gear is rotatably connected to the shell.

2. A novel indirect ophthalmoscope according to claim 1, characterized in that: The image sensor is a CCD sensor or a CMOS sensor.

3. The novel indirect ophthalmoscope according to claim 1, characterized in that: A lens 1 can be detachably mounted in the middle of the mounting housing 1; Square rods are provided on both sides of the installation shell, through holes are provided, and are clamped with the adjustment sleeves.

4. The novel indirect ophthalmoscope according to claim 1, characterized in that: The middle part of the second mounting shell is detachably mounted with the second lens, and the upper end of the second mounting shell is symmetrically provided with screws.

5. The novel indirect ophthalmoscope according to claim 1, characterized in that: The lower end of the shell body is symmetrically provided with through holes, and the lower end of the through holes is provided with a screw sleeve threadedly connected to a screw rod which rotates in situ.

6. The novel indirect ophthalmoscope according to claim 1, characterized in that: The grating plate is a triangular plate, a cylinder is provided on the upper portion of the rear end of the grating plate to connect with the top plate, and a square rod is provided on the lower portion of the rear end of the grating plate to connect with the mounting plate.

7. The novel indirect ophthalmoscope according to claim 1, characterized in that: The display screen is connected to the image sensor circuit, and the image monitored by the image sensor is displayed through the display, and the display screen has the functions of image flipping, mirroring, and rotation.

Images