Cornea horizontal axial position marking system

Abstract

The invention discloses a cornea horizontal axial position marking system which comprises a marking tool and a processing unit. The marking tool comprises an operating handle and a U-shaped fixing frame, and the U-shaped fixing frame is connected with the operating handle and used for carrying a pair of scratchers for marking; an actuating assembly is arranged on the U-shaped fixing frame, and the scratching device can be driven by the actuating assembly to move relative to the U-shaped fixing frame in the first direction so as to execute the marking action. The processing unit comprises a control part, a first trigger part and a second trigger part, the first trigger part is used for providing a first trigger instruction, the second trigger part is used for providing a second trigger instruction, and the control part is used for receiving the first trigger instruction and the second trigger instruction; the control part sends a control instruction to the actuating assembly only when receiving the first trigger instruction and the second trigger instruction at the same time, and the actuating assembly drives the scratching device to move and complete the marking action when receiving the control instruction. The cornea can be effectively prevented from being damaged, and meanwhile the advantage of being accurate in marking is achieved.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a corneal horizontal axis marking system. Background Art

[0002] In the prior art, a marker is usually used to mark the horizontal position of the cornea. When in use, the tip / edge of the marker is painted, and the handle of the marker is pressed down to press the tip / edge of the marker onto the cornea to obtain two horizontal points A and B, and the marking is completed.

[0003] For example, Chinese patent 202222840047.1 discloses an axe-shaped corneal astigmatism axis marker with a detachable spirit level, which includes a grip, a mounting sleeve, a spirit level and a marking head. The mounting sleeve is detachably sleeved on the outside of the grip, and one end of the grip is fixedly connected to the marking head; the spirit level includes a transparent cylindrical shell filled with liquid, a card slot is provided on the outside of the mounting sleeve, the spirit level is card-fixed in the card slot, and the axis of the spirit level is perpendicular to the axis of the grip.

[0004] However, the use of markers requires a high level of user experience. For example, the markers in the above-mentioned prior art need to be adjusted and moved multiple times before they can be aligned and positioned. During this process, the tip / edge of the marker that has been aligned can easily become misaligned, which not only affects the accuracy of the marking but also damages the cornea. Summary of the invention

[0005] In order to at least partially solve the deficiencies in the prior art, the main purpose of the present invention is to provide a corneal horizontal axis marking system that is accurate in marking and does not damage the cornea.

[0006] In order to achieve the above main purpose, the present invention discloses a corneal horizontal axis marking system, including a marking tool and a processing unit arranged in the marking tool; Marking tools include: An operating handle, for a user to hold; A U-shaped fixing frame connected to the operating handle and used to carry a pair of scratchers for marking; Wherein, an actuating assembly is provided on the U-shaped fixing frame, and the scratcher can be moved along a first direction relative to the U-shaped fixing frame under the drive of the actuating assembly to perform a marking action; The processing unit includes: A first trigger unit, used for providing a first trigger instruction; A second triggering unit, used for providing a second triggering instruction; A control unit, configured to receive a first trigger instruction and a second trigger instruction; The control unit sends a control instruction to the actuating component only when it receives the first trigger instruction and the second trigger instruction at the same time. When the actuating component receives the control instruction, it drives the scratcher to move and completes the marking action.

[0007] According to a specific embodiment of the present invention, the control instruction issued by the control unit to the actuator component is automatically disconnected within a first set time; wherein the processing unit further includes a timer, and the timer is used to shield the control instruction issued by the control unit to the actuator component within a second set time.

[0008] According to a specific embodiment of the present invention, the first trigger unit is a pressure trigger unit, and the first trigger instruction it provides is an instruction that exceeds the set pressure value; the second trigger unit is a photosensitive trigger unit, and the second trigger instruction it provides is an instruction that is lower than the set light intensity value.

[0009] In the above technical solution, the first trigger part can be triggered when the user holds it normally, which indicates that the marking tool is in normal use. In this state, the user can make multiple adjustments until the best marking position is found; the second trigger part can be triggered by the user's finger movement. This triggering process is simple and efficient and will not affect the user's current holding state, thereby ensuring the accuracy of the marking position.

[0010] Furthermore, a pressing portion is provided on the front side of the operating handle, and the first trigger portion is a pressure sensor arranged in the operating handle and corresponding to the pressing portion; a light-transmitting hole is provided on the back side of the operating handle, and the second trigger portion is a light-sensitive sensor arranged in the operating handle and corresponding to the light-transmitting hole.

[0011] According to a specific embodiment of the present invention, the control unit drives the actuating component to move through the magnetic component, and the magnetic component includes an electromagnet for receiving control instructions and a permanent magnet arranged on the actuating component; wherein, under normal conditions, the permanent magnet and the electromagnet attract each other and keep the actuating component in a non-actuated state, and when the electromagnet receives the control instruction, the electromagnet has the same magnetic property as the permanent magnet and produces repulsion and separation to drive the actuating component to switch to the actuated state.

[0012] Furthermore, the magnetic component and the actuating component are both arranged in a U-shaped fixing frame.

[0013] According to a specific embodiment of the present invention, the scratcher includes a pressing plate and a scratching rod with a pointed end, the pressing plate is provided with an insertion hole, and the scratching rod is detachably inserted into the insertion hole along a first direction.

[0014] Furthermore, the upper surface of the pressure plate is an inclined surface, and the actuating assembly includes a movable seat that can move along a second direction orthogonal to the first direction, and the lower surface of the movable seat is an inclined surface that fits the upper surface of the pressure plate; wherein, when the movable seat moves along the positive direction of the second direction, it can squeeze the pressure plate, so that the pressure plate drives the scratching rod to move along the positive direction of the first direction and perform a marking action.

[0015] Optionally, the scratcher further comprises a spring, and the spring is compressed when the pressure plate moves in the positive direction of the first direction.

[0016] According to a specific embodiment of the present invention, a level bubble gauge is provided on the surface of the U-shaped fixing frame.

[0017] The present invention has the following beneficial effects: it provides a corneal horizontal axis marking system that will not damage the cornea, and the scratcher is in a "hidden" state before the marking action is performed, that is, it is not in the position after the marking action is performed. During this process, the user can make multiple adjustments and movements until it is in the best marking position without causing damage to the cornea, and it also has the advantage of precise positioning. Among them, the processing unit of the present invention adopts a dual-channel composite control, and provides a trigger instruction by setting a first trigger part and a second trigger part that cooperate with the control part. Only when the first trigger part and the second trigger part are triggered at the same time, the control part will send a control instruction to the actuator assembly, thereby driving the scratcher to move and complete the marking action; the above control process can ensure that the marking action of the scratcher is carried out in accordance with the actual control issued by the user, thereby reducing the risk of the scratcher being triggered by mistake, and realizing that the scratcher is always kept hidden during the adjustment process of the user adjusting the marking position to the best.

[0018] In order to more clearly illustrate the purpose, technical solutions and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a framework diagram of the corneal horizontal axis marking system of the present invention; Figure 2 This is an example structure of the corneal horizontal axis marking system of the present invention. Figure 1 ; Figure 3 This is an example structure of the corneal horizontal axis marking system of the present invention. Figure 2 ; Figure 4 This is the connection diagram of the operating handle and the U-shaped fixing bracket; Figure 5 It is an exploded view of the scratcher; Figure 6 This is the internal view of the U-shaped bracket; Figure 7 yes Figure 6 A front view of Figure 8 It is a comparison of the positions of the scratcher before and after it performs the marking action. DETAILED DESCRIPTION

[0020] In the following description, many specific details are explained in conjunction with the embodiments to facilitate a full understanding of the present invention. However, it should be understood that the following embodiments and detailed descriptions are only for illustrative purposes and do not limit the scope of protection of the present invention.

[0021] The corneal horizontal axis marking system of the embodiment of the present invention is as follows Figure 1 As shown, it includes a marking tool 10 and a processing unit 20. The marking tool 10 is a medical auxiliary device for the user to mark the horizontal axis of the cornea, and the processing unit 20 is arranged in the marking tool 10, and is used to perform the marking action of the marking tool 10 according to the user's manipulation.

[0022] The marking tool 10 includes a scratcher 11 and an actuator assembly 12. The scratcher 11 can be moved under the drive of the actuator assembly 12 to perform a marking action; the processing unit 20 includes a control part, a first trigger part and a second trigger part. The first trigger part is used to provide a first trigger instruction, and the second trigger part is used to provide a second trigger instruction. The control part can receive the first trigger instruction and the second trigger instruction; wherein, the control part only sends a control instruction to the actuator assembly 12 when it receives the first trigger instruction and the second trigger instruction at the same time, and the actuator assembly 12 drives the scratcher 11 to move and completes the marking action when receiving the control instruction.

[0023] With the development of intelligent technology, some clinical medical handheld devices have gradually introduced intelligent control. Although it provides relatively convenient operating conditions, it often causes a certain degree of damage to patients due to false triggering during operation. Therefore, the introduction of intelligent technology is still mainly in some non-contact / invasive instruments, especially some surgical instruments that directly contact patients, which still mainly rely on the experience of users. In order to solve the above problems, at least it can provide operational convenience for users with little professional experience. The control unit in the embodiment adopts a dual-channel composite control to determine the marking action of the scratcher 11, that is, the first trigger unit and the second trigger unit are used to provide trigger instructions respectively. The marking action of the scratcher 11 can only be executed when the first trigger unit and the second trigger unit are triggered at the same time. This can reduce the risk of the scratcher 11 being triggered by mistake, thereby preventing the scratcher 11 from damaging the cornea due to the user's adjustment and movement, reducing the user's operating difficulty, and ultimately facilitating the smooth completion of the marking.

[0024] Furthermore, the processing unit 20 in the embodiment may also be provided with a main switch. When the main switch is turned on, the first trigger part and the second trigger part can be triggered, and the marking system is in normal use; when the main switch is turned off, the first trigger part and the second trigger part cannot be triggered, and the marking system is in a non-use state.

[0025] Optionally, the control instruction sent by the control unit to the actuator assembly 12 is automatically disconnected within the first set time, so that the duration of the marking action can be controlled. Generally, the first set time is preferably 1-2 seconds, so that the color on the scratcher 11 can be more fully marked on the cornea; further, the processing unit includes a timer, and the timer is used to shield the control instruction sent by the control unit to the actuator assembly within the second set time. The second set time is relatively large, such as 8-10 seconds. The second set time is used to control the cycle of the marking action to avoid multiple marking actions of the scratcher 11 during a single marking process, which may cause damage to the cornea. It is more conducive to user operation. Preferably, the second set time can be set, for example, it can also be 15 seconds, or even 20 seconds, which is not limited here and will not be expanded.

[0026] like Figure 2-4 As shown, the marking tool 10 further includes an operating handle 13 , a U-shaped fixing frame 14 and a level bubble gauge 15 .

[0027] The operating handle 13 is used for the user to hold, and it is preferably in the shape of an elongated strip, such as an elongated plate or an elongated rod, and the specific shape is not limited here; wherein, the operating handle 13 has a front side 13a and a back side 13b opposite to each other. The first trigger part in the embodiment is specifically a pressure trigger part, specifically a pressure sensor, and the first trigger instruction provided by it is an instruction exceeding the set pressure value; correspondingly, the front side 13a of the operating handle 13 is provided with a pressing part 131, and the first trigger part is arranged in the operating handle 13 and corresponds to the pressing part 131. When in use, the user's hand (such as a thumb) can easily squeeze the pressing part 131 and trigger the first trigger part while maintaining a normal grip, so that the first trigger part issues a first trigger instruction.

[0028] The second trigger unit in the embodiment is a photosensitive trigger unit, specifically a photosensitive sensor, and the second trigger instruction provided by it is an instruction lower than the set light intensity value; correspondingly, a light-transmitting hole 132 is provided on the reverse side 13b of the operating handle 13, and the second trigger unit is a photosensitive sensor arranged in the operating handle 13 and corresponding to the light-transmitting hole 132. When in use, the user's hand (such as the index finger) can be easily moved to the light-transmitting hole 132 while maintaining a normal grip to block the light-transmitting hole 132 and trigger the second trigger unit, so that the second trigger unit issues a second trigger instruction. It should be noted that the second trigger unit in the embodiment is selected as a photosensitive trigger unit, which can keep the user's hand in a relatively static state to the greatest extent, and the second trigger unit can be triggered by a slight movement of the finger, avoiding slight shaking during the user's operation and ensuring that the scratcher 11 always remains in the best position it is looking for.

[0029] Furthermore, the pressing portion 131 and the light-transmitting hole 132 are preferably closer to the top of the operating handle 13 in the length direction, which is beneficial for the user to perform corresponding operations while maintaining a normal grip state.

[0030] The U-shaped fixing frame 14 is connected to the top of the operating handle 13, and the two are preferably connected in a rotational manner, thereby achieving adjustment of the angle between the U-shaped fixing frame 14 and the operating handle 13 to better meet the actual needs of different users. Figure 3 As shown, the U-shaped fixing frame 14 includes a bottom frame 141 and two vertical side frames 142. The bottom edge of the bottom frame 141 is connected to the operating handle 13 via a rotating shaft 143. The bottom frame 141 has greater damping than the operating handle 13 in rotation, so that the operating handle 13 and the bottom frame 141 can be kept suspended at a specified position, and there will be no shaking during use.

[0031] After long-term use by the inventor, the angle between the bottom frame 141 and the operating handle 13 is about 135°, which is more suitable for operation. In addition, the U-shaped fixing frame 14 is rotatably connected to the top of the operating handle 13, which can also realize the switching of the left and right eyes, and is more practical. Accordingly, the operating handle 13 is tilted at a small angle in the direction away from the bottom frame 141, which can avoid the user's contact with the patient's face when holding the operating handle 13, and is also convenient for applying force, ultimately achieving improved convenience of operation.

[0032] The groove-shaped space 144 formed between the top edges of the two side frames 142 and the bottom frame 141 adapts to the contour of the human eyeball; wherein, a pair of scratchers 11 are mounted on the two side frames 142, that is, each side frame 142 is equipped with a scratcher 11, and the two scratchers 11 are respectively installed on the end areas of the two side frames 142 away from the bottom frame 141, and the actuating assembly 12 is installed inside the bottom frame 141 and the side frames 142. The scratcher 11 can be moved along a first direction (perpendicular to the direction of the eyeball) under the drive of the actuating assembly 12 to perform a marking action.

[0033] The marker in the prior art needs to be disinfected after use, and its main purpose is to disinfect the tip / edge of the marker. To simplify the above operation, the scratcher 11 in the embodiment preferably adopts a replaceable structure, such as Figure 5 As shown, the streaker 11 includes a pressing plate 111 and a streaker rod 112 with a pointed end. The pressing plate 111 is provided with an insertion hole 113. The streaker rod 112 is detachably inserted into the insertion hole 113 along a first direction. After the marking is completed, the streaker rod 112 can be removed from the insertion hole 113 for replacement. Preferably, the streaker rod 112 and the insertion hole 113 are tightly matched, which can facilitate the insertion of the streaker rod 112 and ensure its accurate installation position, and also has the advantage of convenient disassembly and assembly.

[0034] The protruding length of the scratch rod 112 is about 5 mm (corresponding to the corneal thickness of 1 mm + the anterior chamber depth of 4 mm). There are multiple scratch rods 112. In the left and right directions, the multiple scratch rods 112 respectively provide multiple convex points 114. The number of scratch rods 112 and convex points 114 is, for example, three. The three convex points 114 together present a sawtooth tip. The marking depth of the sawtooth tip in the left and right directions is within the required range. In this way, multiple points of the designated marking area can be marked in one marking action to ensure clear and accurate marking. It can be understood here that the scratch rod 112 can also be used alone, that is, only one is used.

[0035] The horizontal bubble meter 15 is installed in the center of the front of the U-shaped fixing frame 14 for the user to use as a horizontal reference. Compared with the traditional liquid bubble meter, the horizontal bubble meter 15 in the embodiment is uniquely designed, wherein the liquid in the liquid bubble meter uses oil with high viscosity, which can slow down the movement speed of the bubbles, thereby achieving easier operation and positioning; accordingly, the color of the oil is selected to be a bright color that contrasts with the colorless gas, such as black, so that it is easier to see the scale line.

[0036] Please continue reading Figure 6The horizontal bubble gauge 15 in the embodiment has two scale lines, which divide the horizontal bubble gauge 15 into three areas: a left area 15a, a middle area 15b and a right area 15c. The width of the middle area 15b is the same as the width of the bubble. In this way, when the bubble coincides with the scale lines, it indicates that it is in a horizontal position. Compared with the traditional bubble gauge that needs to see whether the center of the bubble passes through the central marking line, the identification of the horizontal bubble gauge 15 in the embodiment is clearer and the operation is simpler.

[0037] Furthermore, the width of the middle area 15b is slightly larger than the width of the left area 15a and the right area 15c; for example, the height of the horizontal bubble meter 15 is 2 mm and the width is 10 mm, wherein the width of the bubble and the middle area 15b is 4 mm, and the width of the left area 15a and the right area 15c is 3 mm.

[0038] When in use, first, adjust the U-shaped fixing frame 14 and the operating handle 13 to a suitable angle and hold the operating handle 13 with one hand; then, the user operates the flashlight with one hand and asks the patient to look at the user's open eye on the same side, and the reflective point on the cornea is the visual axis; then, the user holds the U-shaped fixing frame 14 close to a horizontal state with the other hand, and slowly moves the marking tool 10 upward from the bottom of the patient's face until the scratcher 11 moves to the corresponding position; finally, the user determines the marking position according to the state of the horizontal bubble meter 15 and observes whether the two scratchers 11 pass through the visual axis. At this time, the user gently squeezes the pressing part 131 with the thumb to trigger the first trigger part, and moves the blocked light-transmitting hole 132 with the index finger to trigger the second trigger part. The two scratchers 11 automatically perform the marking action to complete the marking of the AB point of the horizontal axis of the cornea.

[0039] Compared with the existing markers, the two scratchers 11 in the above process can enable the entire instrument to move upward from the lower part of the patient's eyeball to its position, avoiding visual stimulation of the instrument and the hand to the visual axis area of ​​the eyeball, and effectively preventing the patient from producing a physiological avoidance reflex that leads to marking failure; at the same time, the scratcher 11 is hidden before being adjusted to the optimal marking position, so the scratcher 11 will not damage the cornea during the adjustment process.

[0040] It should be noted here that the extended distance of the scratcher 11 during the marking action is extremely small, specifically the depth that can scratch the corneal epithelium during normal marking, and will not cause damage to the anterior elastic layer; the traditional scratcher 11 is mainly completed by manual pressure from the user to complete the marking. During this process, the user needs to apply a certain force, and the distance of the pressure mark is mainly determined based on the user's experience; the scratcher 11 in the embodiment can directly meet the marking requirements in most cases when performing the marking action. On this basis, the user can also manually press down slightly before marking based on the user's experience (the degree of pressure is lower than the pressure during pure manual operation), so that the tip of the scratcher 11 is closer to the cornea to ensure clear and accurate marking.

[0041] Furthermore, in order to keep the scratcher 11 as close to the eye as possible and facilitate the smooth pressing process, a drum-shaped protrusion 145 is provided on the fitting surface of the bottom frame 141 and the eye in the embodiment. The existence of the drum-shaped protrusion 145 can reduce the contact between the device itself and the eye / face during the process of the scratcher 11 searching for the best marking position, and on the other hand, it can also be easily pressed down before the scratcher 11 performs the marking action, so that the tip of the scratcher 11 is closer to the cornea, thereby achieving the accuracy of the marking action.

[0042] Preferably, the drum-shaped protrusion 145 is an elastic protrusion that can produce elastic deformation and is made of a slightly harder material, which can better protect the patient's skin and will not cause adverse stimulation to the patient.

[0043] In an embodiment, the control unit may be provided by an embedded control board, which can drive the actuating assembly 12 to move in a variety of ways; as an optional way, the control unit drives the actuating assembly 12 to move through the magnetic assembly 16, and the magnetic assembly 16 and the actuating assembly 12 are both arranged in the U-shaped fixing frame 14; wherein the magnetic assembly 16 can make the most of the space, which is conducive to the miniaturized design of the structure; Figure 6-7 As shown, the magnetic component 16 includes an electromagnet 161 for receiving control instructions and a permanent magnet 162 arranged on the actuating component 12. In a normal state, the permanent magnet 162 and the electromagnet 161 attract each other and keep the actuating component 12 in a non-actuated state. At this time, a positive current flows through the electromagnet 161 and has a magnetism opposite to that of the permanent magnet 162 to achieve mutual attraction between the two. The control instruction can specifically cause a reverse current to flow through the electromagnet 161. When the electromagnet 161 receives the control instruction, the electromagnet 161 has the same magnetism as the permanent magnet 162 and produces repulsion and separation to drive the actuating component 12 to switch to the actuating state.

[0044] The separation action generated by the electromagnet 161 and the permanent magnet 162 is performed in a second direction orthogonal to the first direction; Figure 8As shown, the upper surface of the pressing plate 111 is specifically an inclined surface, and the actuating assembly 12 includes a moving seat 121 that can move along a second direction orthogonal to the first direction, and the lower surface of the moving seat 121 is specifically an inclined surface that fits the upper surface of the pressing plate 111; wherein, when the moving seat 121 moves along the positive direction of the second direction, it can squeeze the pressing plate 111, so that the pressing plate 111 drives the scratching rod 112 to move along the positive direction of the first direction and perform the marking action. In the embodiment, through the inclined surface reversing cooperation between the moving seat 121 and the pressing plate 111, the moving distance of the pressing plate 111 during the marking action can be accurately controlled, thereby reducing the possibility of the user causing misoperation damage to the patient's cornea during the operation.

[0045] In some embodiments, the magnetic component can also be used as an actuating component, that is, the direction change of the current flowing through the electromagnet is used to drive the permanent magnet to produce displacement to drive the scratcher 11 to move in the first direction. This method is a variation of the above process and will not be elaborated here.

[0046] The scratcher 11 further includes a spring (not shown in the figure), which is specifically mounted on the side frame 142 and abuts against the lower surface of the pressing plate 111. The pressing plate 111 presses the spring when it moves in the positive direction of the first direction. When the moving seat 121 moves in the opposite direction of the second direction, the pressing plate 111 and the scratching rod 112 thereon automatically return in the opposite direction of the first direction under the action of the spring to wait for the next marking task to be performed.

[0047] In some embodiments, the control unit can directly control the movement of the moving seat 121 through the magnetic assembly 14; in order to further improve the consistency and smoothness of the marking action of the two scratchers 11, as an optional structure, the actuating assembly 12 can also be provided with a pair of connecting rod assemblies 17 to realize the transmission of the movement of the permanent magnet 162 to the two moving seats 121 corresponding to the two scratchers 11 respectively. Compared with the fixed connection method, the connecting rod assembly 17 is more conducive to improving the smoothness of the action, thereby ensuring the consistency of the marking action performed by the two scratchers 11 at a certain distance. Please continue to read Figure 6-7 The connecting rod assembly 17 includes three transmission connecting rods hinged to each other at one point, and the three transmission connecting rods are respectively a first connecting rod 171, a second connecting rod 172 and a third connecting rod 173.

[0048] Among them, the permanent magnet 162 is provided with a sliding rod 163, the free end of the first connecting rod 171 is hinged to the sliding rod 163, the free end of the second connecting rod 172 is hinged to the bottom frame 141, and the free end of the third connecting rod 173 is hinged to the moving seat 121, wherein the free end of the first connecting rod 171 is located between the free end of the second connecting rod 172 and the free end of the third connecting rod 173 in the second direction, and the free ends of the first connecting rod 171, the second connecting rod 172 and the third connecting rod 173 form a triangle. Preferably, the lengths of the first connecting rod 171, the second connecting rod 172 and the third connecting rod 173 are preferably the same.

[0049] Furthermore, the two moving seats 121 are connected to the same movable plate 122 , and two connecting rod assemblies 17 act on opposite ends of the movable plate 122 respectively, thereby finally achieving synchronous movement of the two moving seats 121 .

[0050] When the electromagnet 161 receives the control command, the electromagnet 161 and the permanent magnet 162 have the same magnetic properties and repel each other. Under the guidance of the sliding rod 163, the permanent magnet 162 moves in the positive direction of the second direction. At this time, the first connecting rod 171, the second connecting rod 172 and the third connecting rod 173 produce follow-up and drive the free end of the third connecting rod 173 to move in the positive direction of the second direction, and finally drive the movable plate 122 to drive the moving seat 121 to move and complete the entire actuation process. In the above process, under the action of the two connecting rod assemblies 17, the two scratchers 11 synchronously perform the marking action, complete the marking of the left and right marking positions, and then complete the marking of the horizontal position passing through the visual axis.

[0051] Although the present invention has been described above through embodiments, the above embodiments are only used to exemplarily describe the feasible implementation schemes of the present invention, and are not used to limit the protection scope of the present invention. Any equivalent substitutions or changes made by those skilled in the art in accordance with the present invention should also be covered by the protection scope defined by the claims of the present invention.

Claims

1. A corneal horizontal axis marking system, characterized in that: It includes a marking tool and a processing unit arranged in the marking tool; Marking tools include: An operating handle, for a user to hold; A U-shaped fixing frame connected to the operating handle and used to carry a pair of scratchers for marking; Wherein, an actuating assembly is provided on the U-shaped fixing frame, and the scratcher can be moved along a first direction relative to the U-shaped fixing frame under the drive of the actuating assembly to perform a marking action; The processing unit includes: A first trigger unit, used for providing a first trigger instruction; A second triggering unit, used for providing a second triggering instruction; A control unit, configured to receive the first trigger instruction and the second trigger instruction; When the control unit receives the first trigger instruction and the second trigger instruction at the same time, it sends a control instruction to the actuating component. When the actuating component receives the control instruction, it drives the scratcher to move and complete the marking action.

2. The corneal horizontal axis marking system according to claim 1, characterized in that: The control instruction sent by the control unit to the actuating component is automatically disconnected within a first set time; wherein the processing unit further includes a timer, and the timer is used to shield the control instruction sent by the control unit to the actuating component within a second set time.

3. The corneal horizontal axis marking system according to claim 1, characterized in that: The first trigger unit is a pressure trigger unit, and the first trigger instruction provided by it is an instruction exceeding the set pressure value; the second trigger unit is a light-sensitive trigger unit, and the second trigger instruction provided by it is an instruction below the set light intensity value.

4. The corneal horizontal axis marking system according to claim 3, characterized in that: A pressing portion is provided on the front side of the operating handle, and the first trigger portion is a pressure sensor arranged in the operating handle and corresponding to the pressing portion; a light-transmitting hole is provided on the back side of the operating handle, and the second trigger portion is a light-sensitive sensor arranged in the operating handle and corresponding to the light-transmitting hole.

5. The corneal horizontal axis marking system according to claim 1, characterized in that: The control unit drives the actuating component to move through a magnetic component, and the magnetic component includes an electromagnet for receiving control instructions and a permanent magnet arranged on the actuating component; wherein, in a normal state, the permanent magnet and the electromagnet attract each other and keep the actuating component in a non-actuated state, and when the electromagnet receives a control instruction, the electromagnet has the same magnetic properties as the permanent magnet and generates repulsion and separation to drive the actuating component to switch to an actuated state.

6. The corneal horizontal axis marking system according to claim 5, characterized in that: The magnetic component and the actuating component are both arranged in the U-shaped fixing frame.

7. The corneal horizontal axis marking system according to claim 1, characterized in that: The scratcher comprises a pressing plate and a scratching rod with a tip, wherein an insertion hole is arranged on the pressing plate, and the scratching rod is detachably inserted into the insertion hole along a first direction.

8. The corneal horizontal axis marking system according to claim 7, characterized in that: The upper surface of the pressure plate is an inclined surface, and the actuating assembly includes a movable seat that can move along a second direction orthogonal to the first direction, and the lower surface of the movable seat is an inclined surface that fits the upper surface of the pressure plate; wherein, when the movable seat moves along the positive direction of the second direction, it can squeeze the pressure plate, so that the pressure plate drives the scratching rod to move along the positive direction of the first direction and perform a marking action.

9. The corneal horizontal axis marking system according to claim 8, characterized in that: The scratcher further includes a spring, and the pressure plate presses the spring when the pressure plate moves in the positive direction of the first direction.

10. The corneal horizontal axis marking system according to claim 1, characterized in that: A level bubble gauge is provided on the surface of the U-shaped fixing frame.

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