Eye marking pen

Abstract

The invention relates to the technical field of ophthalmologic operation instruments, and discloses an eye marking pen which comprises a pen holder, and the bottom of the pen holder is rotationally connected with a rotating seat; a marking assembly is arranged on the rotating base and comprises a rotating arm, the rotating arm is fixedly connected to the bottom end of the rotating base, a sliding block is installed on the rotating arm, a double-end base is fixedly connected to the bottom of the sliding block, and a needle head and a pen point are connected to the two installation ends of the double-end base respectively. The marking assembly further comprises a liquid supplementing mechanism. The marking assembly further comprises a rotating mechanism. According to the corneal epithelium marking device, the marking assembly is arranged, the rotating arm is integrated with two functional parts including the pen point and the needle head, corneal epithelium cutting and marking are integrated into the same operation step to be completed, the operation time is saved, the pen point and the needle head are driven by the rotating arm to do circular motion, the annular cutting part of the corneal epithelium is more accurate, and operation is simpler.

Description

Technical Field

[0001] This invention relates to the field of ophthalmic surgical instruments, specifically to an eye marking pen. Background Technology

[0002] Corneal cross-linking is an ophthalmic surgery used to treat diseases such as keratoconus and corneal ectasia. Its principle is that after riboflavin penetrates the corneal stroma, long-wave ultraviolet irradiation promotes the formation of cross-links in collagen fibers, thereby enhancing the cornea's anti-ectasia ability. During the surgery, the corneal epithelium is first circularly excised using a needle or scraper to remove a circular piece of epithelial tissue, exposing the stroma to facilitate riboflavin penetration. Then, a circular mark is made on the corneal surface after epithelial removal using an ophthalmic marker. This mark can accurately locate the treatment area for subsequent long-wave ultraviolet irradiation, avoid irradiation deviation, and ensure that the cross-linking effect is concentrated in the target area, thereby ensuring the efficacy of the surgery and the stability of corneal optical function.

[0003] However, the existing technology has the following problems: Current methods for corneal epithelial marking and excision typically require two separate steps using a scalpel and a marking pen. The excision and marking actions are highly dependent on the medical staff's hand control. The medical staff needs to hold the scalpel and the marking pen to draw two standard concentric circles on the corneal epithelium. When the operation is disturbed and the hand shakes, the incision or marking may become crooked or misaligned, affecting the surgical procedure. Summary of the Invention

[0004] The purpose of this invention is to provide an eye marker pen to solve the above-mentioned problems and overcome the shortcomings of the prior art, as detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides an eye marking pen, comprising: a pen barrel, the bottom of which is rotatably connected to a rotating base; a marking assembly disposed on the rotating base, the marking assembly including a rotating arm, the rotating arm being fixedly connected to the bottom of the rotating base, a slider mounted on the rotating arm, a double-headed base fixedly connected to the bottom of the slider, the double-headed base having two mounting ends, and a needle and a pen tip respectively connected to the two mounting ends of the double-headed base; the marking assembly further includes a liquid replenishment mechanism for replenishing pigment to the pen tip; the marking assembly further includes a rotation mechanism for driving the rotating arm to rotate, so that the needle completes corneal epithelial cutting and the pen tip completes marking.

[0006] Preferably, the liquid replenishment mechanism includes an injection tube, a liquid reservoir is provided inside the rotating base, the injection tube is fixedly connected to the bottom of the rotating base, the injection tube is connected to the inner wall of the rotating arm, the bottom end of the injection tube is connected to a replenishment tube, the replenishment tube, the injection tube and the liquid reservoir are connected, the replenishment tube passes through the double-headed base, the end of the replenishment tube away from the injection tube is connected to the pen tip, a piston is slidably connected inside the injection tube, the piston is provided with two flow holes with one-way valve plates, and the downward movement of the piston can inject the pigment in the injection tube into the replenishment tube.

[0007] Preferably, the liquid replenishment mechanism includes a fixed rod, which is fixedly connected to the bottom end of the pen barrel. The fixed rod is located inside the liquid chamber of the rotating base. A spiral cylinder is connected to the bottom of the fixed rod. The piston is movably sleeved on the outer wall of the spiral cylinder. A spiral protrusion is provided at the bottom of the spiral cylinder. A sliding tongue is connected to the inner wall of the piston. The sliding tongue slides in contact with the spiral protrusion of the spiral cylinder. A spring is provided between the bottom of the piston and the liquid injection tube. During the rotation of the sliding tongue along the spiral protrusion, it can drive the piston to move downward.

[0008] Preferably, the spiral protrusion of the spiral cylinder is divided into a spiral section and a vertical section. When the sliding tongue slides along the spiral section of the spiral protrusion, it is pushed downward by the counter-thrust. When the sliding tongue slides to the vertical section of the spiral protrusion, it is moved upward and reset by the spring on the piston.

[0009] Preferably, the rotating mechanism includes a sleeve fixedly connected to the outer wall of the rotating base. The inner wall of the sleeve is connected to a first arc surface block and a second arc surface block. A pressure rod is vertically slidably connected to the inner wall of the pen barrel. A spring is provided between the bottom of the pressure rod and the inner wall of the pen barrel. A roller is connected to the outer wall of the pressure rod. The roller can drive the sleeve to rotate one revolution by cooperating with the first arc surface block and the second arc surface block once in one up-and-down reciprocating movement.

[0010] Preferably, the top of the pressure rod protrudes from the top of the pen barrel, and the first and second arc-shaped blocks are respectively provided with arc-shaped edges. When the roller moves down, it contacts the arc-shaped edge of the first arc-shaped block and drives the first arc-shaped block to rotate 180 degrees. When the roller moves up, it contacts the arc-shaped edge of the second arc-shaped block and drives the second arc-shaped block to rotate 180 degrees.

[0011] Preferably, the marking assembly further includes an adjustment mechanism, wherein the slider is slidably connected to the rotating arm, the adjustment mechanism includes a lead screw, the lead screw is rotatably mounted on the rotating arm, the lead screw is threadedly connected to the slider, and a handwheel is provided on the lead screw.

[0012] Preferably, a pointer is connected to the slider, a scale plate is installed on the outer wall of the rotating arm, the scale plate is provided with scale lines corresponding to the cutting diameter of the needle, and the pointer is located on the front side of the scale plate.

[0013] Preferably, the outer wall of the pen barrel is provided with an anti-slip sleeve, which is made of silicone and has anti-slip texture.

[0014] The beneficial effects are: 1. This eye marking pen, through the setting of the marking component, integrates the pen tip and needle into two functional parts by rotating the arm, so that corneal epithelial resection and marking can be completed in the same operation step, saving surgical time. Furthermore, by driving the pen tip and needle to make circular motion through the rotating arm, the circular resection site of corneal epithelium is more precise and the operation is simpler, avoiding situations such as incision deviation and misalignment caused by poor hand control by some medical staff during resection.

[0015] 2. This eye marker pen, through the setting of the liquid replenishment mechanism, enables the marking component to indirectly drive the sliding tongue and the spiral cylinder to cooperate while running, realizing the automatic reciprocating motion of the piston. This allows the ink to be continuously delivered to the pen tip through the liquid replenishment tube during the marking process, thereby meeting the ink demand of the marking operation and avoiding ink supply interruption.

[0016] 3. This eye marking pen, through the setting of the rotating mechanism, allows medical staff to press the lever once, which can drive the roller to complete one up-and-down reciprocating movement. The roller, through the cooperation of the first arc surface block and the second arc surface block, can drive the sleeve to rotate one revolution, and then drive the rotating base and the rotating arm to rotate one revolution, realizing the cutting and marking action, which is relatively convenient to operate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a schematic diagram of the marking component structure of the present invention; Figure 4 This is a schematic diagram of the adjustment mechanism structure of the present invention; Figure 5 This is a schematic diagram of the fluid replenishment mechanism of the present invention; Figure 6 This is a schematic diagram of the rotating seat structure of the present invention; Figure 7 This is a schematic diagram of the piston structure of the present invention; Figure 8This is a schematic diagram of the spiral cylinder structure of the present invention; Figure 9 This is a schematic diagram of the rotating mechanism structure of the present invention; Figure 10 This is a schematic diagram of the pressure bar structure of the present invention; Figure 11 This is a schematic diagram of the first arc-shaped block structure of the present invention; Figure 12 This is a schematic diagram of the second arc-shaped block structure of the present invention.

[0019] The annotations in the attached figures are explained as follows: 1. Pen barrel; 2. Rotary base; 3. Marking component; 31. Rotary arm; 32. Slider; 33. Double-headed base; 34. Needle; 35. Pen tip; 4. Fluid replenishment mechanism; 41. Fixing rod; 42. Injection tube; 43. Piston; 44. Fluid replenishment tube; 45. Sliding tongue; 46. Spiral cylinder; 5. Rotating mechanism; 51. Sleeve; 52. First arc-shaped block; 53. Second arc-shaped block; 54. Pressure rod; 55. Roller; 6. Adjustment mechanism; 61. Lead screw; 62. Pointer; 63. Scale plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0021] One embodiment of the present invention is as follows: Please see Figure 1 - Figure 11An eye marker pen includes: a pen barrel 1, a rotating base 2 rotatably connected to the bottom of the pen barrel 1, a marking component 3 mounted on the rotating base 2, the marking component 3 including a rotating arm 31 fixedly connected to the bottom of the rotating base 2, a slider 32 mounted on the rotating arm 31, a double-headed base 33 fixedly connected to the bottom of the slider 32, the double-headed base 33 having two mounting ends, a needle 34 and a pen tip 35 respectively connected to the two mounting ends of the double-headed base 33, the marking component 3 also including a liquid replenishment mechanism 4 for replenishing ink to the pen tip 35, and a rotation mechanism 5 for driving... The rotating arm 31 rotates, causing the needle 34 to perform corneal epithelial excision and the pen tip 35 to complete marking. The pen barrel 1 serves as the grip and support base. When the rotating base 2 rotates, it synchronously drives the rotating arm 31 to rotate. The two mounting ends of the double-headed base 33 adopt a detachable connection structure, which facilitates the replacement and maintenance of the needle 34 and the pen tip 35. The needle 34 is used for corneal epithelial excision, and the pen tip 35 is used for eye marking. The pen tip 35 is a flexible pen tip, which can be used to mark the eyeball after being injected with ophthalmic surgical pigment. The two are integrated and installed through the double-headed base 33. (Infusion mechanism 4) The core function is to continuously supply pigment to the pen tip 35, preventing marking failure due to pigment depletion. The rotating mechanism 5 provides power for the rotation of the rotating arm 31. By driving the rotating arm 31 to rotate, the needle tip 34 and pen tip 35 can rotate coaxially. The rotation diameter of the pen tip 35 is larger than that of the needle tip 34. The medical staff holds the pen barrel 1, allowing the needle tip 34 to contact the corneal epithelium. The rotating mechanism 5 drives the rotating arm 31 to rotate. During one revolution of the rotating arm 31, the needle tip 34 performs a circular cut on the corneal epithelium, thereby removing the corneal epithelium. Meanwhile, the pen tip 35 moves in a circular motion on the outer side of the corneal epithelial resection site, thereby forming a ring mark. Through the setting of the marking component 3, the rotating arm 31 integrates two functional components, the pen tip 35 and the needle tip 34, and integrates corneal epithelial resection and marking into the same operation step, saving surgical time. Furthermore, by driving the pen tip 35 and the needle tip 34 to make circular motion through the rotating arm 31, the ring resection site of the corneal epithelium is more precise and the operation is simpler, avoiding situations such as incision deviation and misalignment caused by poor hand control by some medical staff during resection.

[0022] Furthermore, the replenishment mechanism 4 includes an injection tube 42, a liquid reservoir inside the rotating base 2, and the injection tube 42 is fixedly connected to the bottom of the rotating base 2. The injection tube 42 is connected to the inner wall of the rotating arm 31, and a replenishment tube 44 is connected to the bottom end of the injection tube 42. The replenishment tube 44, the injection tube 42, and the liquid reservoir are connected. The replenishment tube 44 passes through the double-headed base 33, and the end of the replenishment tube 44 away from the injection tube 42 is connected to the pen tip 35. A piston 43 is slidably connected inside the injection tube 42. The piston 43 has two flow holes with one-way valve plates. When the piston 43 moves downward, it can inject the pigment in the injection tube 42 into the replenishment tube 44. The injection tube 42 rotates synchronously with the rotating arm 31 and the rotating base 2. The connection design of the injection tube 42, the replenishment tube 44, and the liquid reservoir constitutes a complete pigment delivery channel. The replenishment tube 44 can accurately deliver the pigment to the pen tip. At 35 locations, the pigment requirements for marking operations are met. The piston 43 can slide smoothly up and down along the inner wall of the injection tube 42. The piston 43 and the injection tube 42 are connected by a limiting groove and a limiting ridge, which prevents the piston 43 from rotating inside the injection tube 42. The two flow holes of the piston 43 have one-way conduction characteristics, and the pigment can only pass through the flow holes from top to bottom. When the piston 43 moves down, the one-way valve of the flow hole closes, and the pigment in the injection tube 42 is squeezed into the replenishment tube 44 under the pressure of the piston 43, and then delivered to the pen tip 35. When the piston 43 moves up, the one-way valve of the flow hole opens, and the pigment in the injection tube 42 above the piston 43 passes through the flow hole to replenish the injection tube 42 below the piston 43. The rotating seat 2 is provided with a replenishment port and an observation port. The replenishment port is used to replenish pigment, and the observation port is used to observe the remaining pigment.

[0023] In addition, the fluid replenishment mechanism 4 includes a fixed rod 41, which is fixedly connected to the bottom end of the pen barrel 1. The fixed rod 41 is located inside the liquid chamber of the rotating seat 2. A spiral cylinder 46 is connected to the bottom of the fixed rod 41. A piston 43 is movably sleeved on the outer wall of the spiral cylinder 46. The bottom of the spiral cylinder 46 is provided with a spiral protrusion. A sliding tongue 45 is connected to the inner wall of the piston 43. The sliding tongue 45 slides in contact with the spiral protrusion of the spiral cylinder 46. A spring is provided between the bottom of the piston 43 and the injection tube 42. During the rotation of the sliding tongue 45 along the spiral protrusion, it can drive the piston 43 to move downward. The spiral protrusion of the spiral cylinder 46 is divided into... The spiral section and the vertical section: When the sliding tongue 45 slides along the spiral section of the spiral ridge, it is pushed downward by the counterforce. When the sliding tongue 45 slides to the vertical section of the spiral ridge, it is pushed upward and reset by the spring on the piston 43. The fixed rod 41 provides fixed support for the spiral cylinder 46, ensuring that the spiral cylinder 46 remains stationary when the injection tube 42 rotates. The spiral ridge of the spiral cylinder 46 provides a guide trajectory for the sliding tongue 45. The inner wall of the piston 43 and the outer wall of the spiral cylinder 46 are provided with a sliding seal. The piston 43 can slide up and down along the outer wall of the spiral cylinder 46 and can also rotate synchronously with the injection tube 42 for injection. When tube 42 rotates, it drives piston 43 to rotate synchronously. Piston 43 drives sliding tongue 45 to slide along the spiral protrusion of spiral cylinder 46. The spiral section of the spiral protrusion has a certain inclination angle. When sliding tongue 45 slides along the spiral section, it will be subjected to the counter-thrust of the spiral protrusion. This counter-thrust will drive sliding tongue 45 to drive piston 43 to move down along the outer wall of spiral cylinder 46, realizing the liquid replenishment action. The spring between the bottom of piston 43 and injection tube 42 is in a compressed state. When sliding tongue 45 slides to the vertical section of spiral protrusion, sliding tongue 45 has rotated one revolution, and the rotary cutting and marking operation is completed. At this time, the spiral protrusion... When the counterforce on the sliding tongue 45 disappears, the elastic restoring force of the spring will push the piston 43 upward to reset, and at the same time drive the sliding tongue 45 to move upward along the vertical section, returning to the starting position of the spiral section, preparing for the next downward replenishment. Through the setting of the replenishment mechanism 4, the marking component 3 can also indirectly drive the sliding tongue 45 to cooperate with the spiral cylinder 46 while it is running, so as to realize the automatic reciprocating motion of the piston 43. This allows the injection tube 42 to continuously deliver the pigment to the pen tip 35 through the replenishment tube 44 during the marking process, thereby meeting the pigment demand of the marking operation and avoiding pigment supply interruption.

[0024] In addition, the rotating mechanism 5 includes a sleeve 51, which is fixedly connected to the outer wall of the rotating base 2. The inner wall of the sleeve 51 is connected to a first arc surface block 52 and a second arc surface block 53. A pressure rod 54 is vertically slidably connected to the inner wall of the pen barrel 1. A spring is provided between the bottom of the pressure rod 54 and the inner wall of the pen barrel 1. A roller 55 is connected to the outer wall of the pressure rod 54. The roller 55 can rotate the sleeve 51 one revolution by moving up and down once, through cooperation with the first arc surface block 52 and the second arc surface block 53. The top of the pressure rod 54 protrudes from the top of the pen barrel 1. The first arc surface block 52 and the second arc surface block 53 are respectively provided with When the roller 55 moves downward, it contacts the arc-shaped edge of the first arc-shaped block 52 and causes the first arc-shaped block 52 to rotate 180 degrees. When the roller 55 moves upward, it contacts the arc-shaped edge of the second arc-shaped block 53 and causes the second arc-shaped block 53 to rotate 180 degrees. When the sleeve 51 rotates, it can synchronously drive the rotating seat 2 to rotate. The pressure rod 54 cooperates with the inner wall of the pen barrel 1 through the limiting groove and limiting ridge to ensure that the pressure rod 54 can only move up and down along the inner wall of the pen barrel 1. The spring between the bottom of the pressure rod 54 and the inner wall of the pen barrel 1 provides elastic force for the return of the pressure rod 54. When rotary cutting is required, medical staff Hold the pen barrel 1 firmly with your thumb, middle finger, and ring finger. Press down the lever 54 with your index finger. The lever 54 drives the roller 55 to move downward. When the roller 55 moves downward, it contacts the arc surface of the first arc block 52. Due to the guiding effect of the arc surface, the roller 55 will generate a horizontal pushing force on the first arc block 52, thereby driving the first arc block 52 to rotate the sleeve 51. When the lever 54 is pressed to the lowest point, the first arc block 52 and the sleeve 51 have rotated 180 degrees. Release the lever 54. The lever 54 uses the spring force to drive the roller 55 to move upward. At this time, the roller 55 contacts the second arc block 52. Similarly, the roller 55 exerts a horizontal thrust on the second arc surface block 53, driving the second arc surface block 53 to drive the sleeve 51 to continue rotating. After the pressure rod 54 is reset, the sleeve 51 rotates exactly one revolution. Through the setting of the rotating mechanism 5, the medical staff can press the pressure rod 54 once to drive the roller 55 to complete one up-and-down reciprocating movement. The roller 55, through its cooperation with the first arc surface block 52 and the second arc surface block 53, can drive the sleeve 51 to rotate one revolution, thereby driving the rotating seat 2 and the rotating arm 31 to rotate one revolution, realizing the rotary cutting and marking action.

[0025] It is worth noting that the outer wall of the pen barrel 1 is equipped with an anti-slip sleeve, which is made of silicone and has anti-slip texture. Silicone has good softness and anti-slip properties, which can not only improve the comfort of the operator when holding the pen barrel 1, but also enhance the friction between the hand and the pen barrel 1. The anti-slip texture on the surface of the anti-slip sleeve further increases the anti-slip effect and effectively prevents the pen barrel 1 from slipping out of the hand.

[0026] Based on the above embodiments, another embodiment of the present invention is as follows: Please see Figure 3 - Figure 5The marking component 3 also includes an adjustment mechanism 6. The slider 32 is slidably connected to the rotating arm 31. The adjustment mechanism 6 includes a lead screw 61, which is rotatably mounted on the rotating arm 31. The lead screw 61 is threadedly connected to the slider 32, and a handwheel is provided on the lead screw 61. The threaded connection between the lead screw 61 and the slider 32 constitutes a helical transmission structure. When the lead screw 61 is rotated by the handwheel, the rotational motion of the lead screw 61 can be converted into the linear motion of the slider 32 along the rotating arm 31, thereby adjusting the rotation radius of the slider 32. When the slider 32 moves, it drives the double-headed seat 33, the needle 34, and the pen tip 35 to move synchronously, thereby adjusting the cutting diameter and the marking diameter. Since the threaded transmission has the characteristics of high transmission accuracy and good self-locking, after the adjustment is completed, the slider 32 can be stably stopped at the target position and will not deviate due to external force.

[0027] It is worth mentioning that a pointer 62 is connected to the slider 32, and a scale plate 63 is installed on the outer wall of the rotating arm 31. The scale plate 63 has scale lines corresponding to the cutting diameter of the needle 34. The pointer 62 is located in front of the scale plate 63. The value of the scale line is directly corresponding to the cutting diameter of the needle 34 after calibration. The pointer 62 is located in front of the scale plate 63, and the tip of the pointer 62 is designed to be sharp. Medical staff can accurately read the current cutting radius value by observing the position of the pointer 62. Through the setting of the adjustment mechanism 6, medical staff can adjust the cutting diameter by rotating the screw 61 according to the indication of the pointer 62. This makes it convenient for staff to flexibly adjust according to different surgical needs and improves the applicability of the marking component 3.

[0028] Using the above structure, the working principle of this case is as follows: Medical personnel hold the pen barrel 1 firmly with their thumb, middle finger, and ring finger, and manually move the needle 34 to the corneal epithelium. Simultaneously, the index finger presses down on the pressure rod 54 protruding from the top of the pen barrel 1. The pressure rod 54 moves vertically downwards along the inner wall of the pen barrel 1, and the roller 55 on the pressure rod 54 moves downwards accordingly, contacting the arc-shaped edge of the first arc-shaped block 52 on the inner wall of the sleeve 51. Under the guidance of the arc surface, the first arc-shaped block 52 is pushed, causing the sleeve 51 to rotate 180 degrees. Sleeve 51 is fixedly connected to the outer wall of rotating base 2, thereby driving rotating base 2 and the rotating arm 31 fixed at its bottom to rotate synchronously. When the pressure rod 54 is pressed to the lowest point, it is released. Under the action of the spring force between the bottom of the pressure rod 54 and the inner wall of the pen barrel 1, the pressure rod 54 moves upward and resets. The roller 55 moves upward and contacts the arc-shaped edge of the second arc surface block 53 on the inner wall of sleeve 51. Similarly, it pushes the second arc surface block 53 to drive sleeve 51 to continue rotating 180 degrees, finally causing sleeve 51, rotating base 2 and rotating arm 31 to rotate synchronously. As arm 31 completes one full rotation, during this rotation, slider 32, double-headed seat 33, needle 34, and pen tip 35 move in a circular motion simultaneously. Needle 34 contacts the corneal epithelium to complete a circular cutting, while pen tip 35 moves in a circular motion on the outer side of the cutting area to form a circular mark. Because pen tip 35 has a flexible structure and is filled with ophthalmic surgical pigment, it can accurately mark the eye. At the same time, injection tube 42 rotates synchronously with rotating seat 2 and arm 31, driving piston 43 to rotate. The sliding tongue 45 on the inner wall of piston 43 slides along the spiral protrusion at the bottom of spiral cylinder 46. When sliding along the spiral section, the sliding tongue 45 is pushed down by the counterforce, causing piston 43 to move downward. Piston 43 delivers the pigment in injection tube 42 to pen tip 35 through replenishment tube 44 to meet the pigment requirements of marking. When the sliding tongue 45 slides to the vertical section of the spiral protrusion, piston 43 moves upward and resets using the spring force, and sliding tongue 45 returns to the starting position of the spiral section, preparing for the next replenishment.

[0029] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An eye-marking pen, characterized in that, include: Pen barrel (1), with a rotating base (2) rotatably connected to the bottom of the pen barrel (1); The rotating base (2) is provided with a marking component (3), which includes a rotating arm (31). The rotating arm (31) is fixedly connected to the bottom end of the rotating base (2). A slider (32) is installed on the rotating arm (31). A double-headed base (33) is fixedly connected to the bottom of the slider (32). The double-headed base (33) has two mounting ends. A needle (34) and a pen tip (35) are respectively connected to the two mounting ends of the double-headed base (33). The marking assembly (3) also includes a replenishment mechanism (4) for replenishing ink to the pen tip (35); The marking assembly (3) also includes a rotating mechanism (5) for driving the rotating arm (31) to rotate, so that the needle (34) completes corneal epithelial cutting and the pen tip (35) completes marking.

2. The eye marker pen according to claim 1, characterized in that: The replenishment mechanism (4) includes a liquid injection tube (42), a liquid reservoir is provided inside the rotating seat (2), the liquid injection tube (42) is fixedly connected to the bottom of the rotating seat (2), the liquid injection tube (42) is connected to the inner wall of the rotating arm (31), the bottom end of the liquid injection tube (42) is connected to a replenishment tube (44), the replenishment tube (44), the liquid injection tube (42) and the liquid reservoir are connected, the replenishment tube (44) passes through the double-head seat (33), the end of the replenishment tube (44) away from the liquid injection tube (42) is connected to the pen tip (35), a piston (43) is slidably connected inside the liquid injection tube (42), the piston (43) is provided with two flow holes with one-way valve plates, the piston (43) can inject the pigment in the liquid injection tube (42) into the replenishment tube (44) when it moves down.

3. The eye marking pen according to claim 2, characterized in that: The fluid replenishment mechanism (4) includes a fixed rod (41), which is fixedly connected to the bottom end of the pen (1). The fixed rod (41) is located in the liquid chamber of the rotating seat (2). The bottom of the fixed rod (41) is connected to a spiral cylinder (46). The piston (43) is movably sleeved on the outer wall of the spiral cylinder (46). The bottom of the spiral cylinder (46) is provided with a spiral protrusion. The inner wall of the piston (43) is connected to a sliding tongue (45). The sliding tongue (45) slides in contact with the spiral protrusion of the spiral cylinder (46). A spring is provided between the bottom of the piston (43) and the injection tube (42). The sliding tongue (45) can drive the piston (43) to move down during the rotation of one revolution along the spiral protrusion.

4. An eye marker pen according to claim 3, characterized in that: The spiral protrusion of the spiral cylinder (46) is divided into a spiral section and a vertical section. When the sliding tongue (45) slides along the spiral section of the spiral protrusion, it is pushed down by the counter-thrust. When the sliding tongue (45) slides to the vertical section of the spiral protrusion, it is moved up and reset by the spring on the piston (43).

5. An eye marker pen according to claim 4, characterized in that: The rotating mechanism (5) includes a sleeve (51), which is fixedly connected to the outer wall of the rotating base (2). The inner wall of the sleeve (51) is connected to a first arc surface block (52) and a second arc surface block (53). The inner wall of the pen barrel (1) is vertically slidably connected to a pressure rod (54). A spring is provided between the bottom of the pressure rod (54) and the inner wall of the pen barrel (1). The outer wall of the pressure rod (54) is connected to a roller (55). The roller (55) can drive the sleeve (51) to rotate one revolution by cooperating with the first arc surface block (52) and the second arc surface block (53) in one up-and-down reciprocating movement.

6. An eye marking pen according to claim 5, characterized in that: The top of the pressure rod (54) protrudes from the top of the pen barrel (1). The first arc surface block (52) and the second arc surface block (53) are respectively provided with arc-shaped edges. When the roller (55) moves down, it contacts the arc-shaped edge of the first arc surface block (52) and drives the first arc surface block (52) to rotate 180 degrees. When the roller (55) moves up, it contacts the arc-shaped edge of the second arc surface block (53) and drives the second arc surface block (53) to rotate 180 degrees.

7. An eye marker pen according to claim 1, characterized in that: The marking assembly (3) further includes an adjustment mechanism (6), the slider (32) is slidably connected to the rotating arm (31), the adjustment mechanism (6) includes a lead screw (61), the lead screw (61) is rotatably mounted on the rotating arm (31), the lead screw (61) is threadedly connected to the slider (32), and a handwheel is provided on the lead screw (61).

8. An eye marker pen according to claim 7, characterized in that: A pointer (62) is connected to the slider (32), and a scale plate (63) is installed on the outer wall of the rotating arm (31). The scale plate (63) has scale lines corresponding to the cutting diameter of the needle (34), and the pointer (62) is located in front of the scale plate (63).

9. An eye marker pen according to claim 1, characterized in that: The outer wall of the pen barrel (1) is provided with an anti-slip sleeve, which is made of silicone and has anti-slip texture.

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