Double-end cornea marking pen with needles
The dual-head corneal marking pen with modular components addresses the complexity and safety issues of one-piece designs by enabling easy disassembly and folding, enhancing user safety and extending the pen's lifespan.
Patent Information
- Application Number
- CN202421848342.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-01
AI Technical Summary
The existing corneal marker pens are designed to be integrated and cannot be disassembled, resulting in the overall replacement of ink when it is used up or blocked, which increases resource waste and economic burden. At the same time, the patient feels strong in fear during the marking process, complex operation and high risk.
Designed as a double-headed needle structure, the main pen body and the secondary pen body can be detached, and it can be easily disassembled and folded through knobs and fixing bolts, and marking and dyeing within the pen head can be achieved in one step.
The removal and operation process of marker pens is simplified, the patient's fear is reduced, the risk of needle stab wounds is reduced, the service life is extended and the scope of application is expanded.
Smart Images
Figure CN223095706U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ophthalmic medical treatment, in particular to a double-headed needle corneal marking pen. Background Art
[0002] Clinically, during cataract surgery, for some patients with corneal astigmatism, corneal arcuate incision relaxation correction or implantation of astigmatism correction intraocular lens is required simultaneously. Such patients need to perform corneal axis marking under the slit lamp in the sitting position before the operation to determine the astigmatism axis. The traditional method is that after the patient drops surface anesthetic drugs, sits in front of the slit lamp, adjusts the head position to make the pupils of both eyes on the same horizontal line, uses a 1ml syringe needle to pierce the corneal epithelium into short lines at the corneal limbus parts of the preoperative designed axes such as 3 o'clock and 9 o'clock, and then uses a medical marking pen to paint at the pierced corneal epithelium parts. When the patient sees the syringe needle scratching the cornea directly, they will have a sense of fear and instinctively have actions such as dodging, closing eyes, and random rotation of the eyeballs, and cannot cooperate to complete the marking, increasing the risk of needle injury to the operator and the patient. In severe cases, symptoms such as tension syncope will occur, endangering life safety. At the same time, during the operation process, the operator needs to replace the syringe and the marking pen for separate operations, and the steps are relatively cumbersome, increasing the operation time.
[0003] Most of the existing marking pens adopt an integrated design and cannot disassemble and repair the internal structure. Although this design simplifies the manufacturing process and use, it also brings many limitations. When the ink in the marking pen runs out or there are problems such as blockage, users cannot replace the ink core or clean and repair it by themselves, and can only choose to replace the whole marking pen, resulting in waste of resources and additional economic burden. Content of the Utility Model
[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose a double-headed needle corneal marking pen, aiming to improve the problem that most of the existing marking pens are integrated designs and cannot disassemble the interior.
[0005] To achieve the above object, the present utility model provides the following technical solution: A double-headed corneal marking pen with a needle, comprising a main pen body, wherein a marking assembly is arranged inside the main pen body, and the marking assembly is used for marking the position of the cornea. A first knob is rotatably connected to the outer wall of the main pen body. A fixing plate is fixedly connected inside the first knob. A limiting disc is fixedly connected to the outer wall of the fixing plate. A limiting groove is formed inside the limiting disc. A limiting rod is slidably connected inside the limiting disc. The outer wall of the limiting rod is slidably connected inside the limiting groove. A sliding plate is fixedly connected to the outer wall of the limiting rod. A turntable is slidably connected to the outer wall of the sliding plate. The outer wall of the turntable is fixedly connected inside the main pen body. A first spring is arranged inside the turntable. One end of the first spring is fixedly connected inside the turntable, and the other end of the first spring is fixedly connected to the outer wall of the sliding plate. A secondary pen body is slidably connected to the outer wall of the fixing plate. The outer wall of the limiting disc is rotatably connected inside the secondary pen body.
[0006] Further, the marking assembly includes a pen tip, the outer wall of the pen tip is fixedly connected inside the main pen body, and a needle tip is fixedly connected inside the pen tip.
[0007] Further, a fixing seat is fixedly connected to the outer wall of the secondary pen body, and a connecting seat is rotatably connected to the outer wall of the fixing seat.
[0008] Further, a threaded sleeve is rotatably connected inside the connecting seat, the outer wall of the threaded sleeve is fixedly connected inside the secondary pen body, and a second knob is fixedly connected to the top of the outer wall of the threaded sleeve.
[0009] Further, a fixing bolt is rotatably connected inside the connecting seat, and the outer wall of the fixing bolt is threadedly connected inside the threaded sleeve.
[0010] Further, a sleeve is fixedly connected inside the connecting seat, and a limiting ball is slidably connected inside the sleeve.
[0011] Further, the outer wall of the limiting ball is slidably connected inside the fixing seat.
[0012] Further, a second spring is arranged inside the sleeve, one end of the second spring is fixedly connected inside the sleeve, and the other end of the second spring is fixedly connected to the outer wall of the limiting ball.
[0013] The present utility model has the following beneficial effects:
[0014] 1. In the present utility model, first, by rotating knob 1 in cooperation with the fixing plate to drive the limit disc to rotate, the limit rod slides inside the limit groove to drive the slide plate to slide until the slide plate completely slides out of the inside of the main pen body, thereby achieving the effect of disassembling the marking pen. At the same time, the design of the double - headed needle - shaped angle reduces the cumbersome problems of the two - step operations of replacing the needle and the marking pen, improves the convenience of the marking pen, and expands the scope of application of the marking pen.
[0015] 2. In the present utility model, by rotating the fixing bolt to release the restriction on the fixing bolt, the secondary pen body can then rotate around the fixing seat until the two main pen bodies are vertically parallel, thereby achieving the effect of folding and storing the marking pen, improving the practicality of the marking pen, and extending the service life of the marking pen. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a three - dimensional structural schematic diagram of a double - headed needle - shaped corneal marking pen proposed by the present utility model;
[0017] Figure 2 is an internal structural schematic diagram of the main pen body of a double - headed needle - shaped corneal marking pen proposed by the present utility model;
[0018] Figure 3 is a partial structural schematic diagram of the connecting seat of a double - headed needle - shaped corneal marking pen proposed by the present utility model.
[0019] LEGEND DESCRIPTION:
[0020] 1. Main pen body; 2. Pen tip; 3. Needle tip; 4. Knob 1; 5. Fixing plate; 6. Limit disc; 7. Limit groove; 8. Limit rod; 9. Slide plate; 10. Turntable; 11. Spring 1; 12. Secondary pen body; 13. Fixing seat; 14. Connecting seat; 15. Threaded sleeve; 16. Knob 2; 17. Fixing bolt; 18. Sleeve; 19. Limit ball; 20. Spring 2. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0022] Refer to Figures 1 - 3, An embodiment provided by the present utility model: A double-headed corneal marking pen with a needle includes a main pen body 1. A marking component is arranged inside the main pen body 1, and the marking component is used for marking the position of the cornea. A first knob 4 is rotatably connected to the outer wall of the main pen body 1. A fixing plate 5 is fixedly connected inside the first knob 4. A limiting disc 6 is fixedly connected to the outer wall of the fixing plate 5. A limiting groove 7 is opened inside the limiting disc 6. A limiting rod 8 is slidably connected inside the limiting disc 6. The outer wall of the limiting rod 8 is slidably connected inside the limiting groove 7. A sliding plate 9 is fixedly connected to the outer wall of the limiting rod 8. The outer wall of the sliding plate 9 is slidably connected to a turntable 10. The outer wall of the turntable 10 is fixedly connected inside the main pen body 1. A first spring 11 is arranged inside the turntable 10. One end of the first spring 11 is fixedly connected inside the turntable 10, and the other end of the first spring 11 is fixedly connected to the outer wall of the sliding plate 9. A secondary pen body 12 is slidably connected to the outer wall of the fixing plate 5. The outer wall of the limiting disc 6 is rotatably connected inside the secondary pen body 12; The marking component includes a pen tip 2. The outer wall of the pen tip 2 is fixedly connected inside the main pen body 1. A needle tip 3 is fixedly connected inside the pen tip 2;
[0023] Specifically, when the marking pen needs to be disassembled, by rotating the first knob 4, the fixing plate 5 drives the limiting disc 6 to start rotating, which causes the limiting rod 8 to slide inside the limiting groove 7, and at the same time drives the sliding plate 9 to slide inside the turntable 10. During this process, the first spring 11 is compressed. As the turntable 10 completely slides out of the inside of the main pen body 1, the user can easily separate the main pen body 1 from the secondary pen body 12 to complete the disassembly process of the marking pen. This not only simplifies the disassembly operation but also fully considers the use safety and convenience. At the same time, the double-headed needle design of the marking pen not only improves its practicability but also expands its applicable range in different scenarios.
[0024] Refer to Figures 1 - 3 , A fixing seat 13 is fixedly connected to the outer wall of the secondary pen body 12. A connecting seat 14 is rotatably connected to the outer wall of the fixing seat 13; A threaded sleeve 15 is rotatably connected inside the connecting seat 14. The outer wall of the threaded sleeve 15 is fixedly connected inside the secondary pen body 12. A second knob 16 is fixedly connected to the top of the outer wall of the threaded sleeve 15; A fixing bolt 17 is rotatably connected inside the connecting seat 14. The outer wall of the fixing bolt 17 is threadedly connected inside the threaded sleeve 15; A sleeve 18 is fixedly connected inside the connecting seat 14. A limiting ball 19 is slidably connected inside the sleeve 18; The outer wall of the limiting ball 19 is slidably connected inside the fixing seat 13; A second spring 20 is arranged inside the sleeve 18. One end of the second spring 20 is fixedly connected inside the sleeve 18, and the other end of the second spring 20 is fixedly connected to the outer wall of the limiting ball 19;
[0025] Specifically, when the marker pen needs to be used, the fixing of the threaded sleeve 15 is released by rotating the fixing bolt 17, which enables the main pen body 1 to rotate, allowing the secondary pen body 12 to rotate around the fixing seat 13 within the connecting seat 14. During use, the action of the second spring 20 slides the limit ball 19 into the interior of the fixing seat 13. Subsequently, tightening the fixing bolt 17 fixes the position of the main pen body 1, ensuring the stability and safety of the marker pen when it is unfolded for use. This not only improves the practicality of the marker pen but also extends its service life. By setting the needle tip 3 inside the pen tip 2, the marker pen can complete two steps of marking and dyeing in one operation, simplifying the operation process, shortening the operation time, significantly reducing the patient's fear that the syringe needle may pierce the cornea, and reducing risks such as needlestick injuries, thereby improving the safety during the perioperative period.
[0026] Working principle: When the marker pen needs to be disassembled, rotating the first knob 4 drives the limit disc 6 to rotate by the fixing plate 5, causing the limit rod 8 to slide inside the limit groove 7, and then driving the slide plate 9 to slide inside the turntable 10 while compressing the first spring 11 until the turntable 10 completely slides out of the interior of the main pen body 1, and then the main pen body 1 and the secondary pen body 12 can be disassembled, thus achieving the effect of disassembling the marker pen. At the same time, the design of the double-headed needle angle improves the convenience of the marker pen and expands its scope of application. When the marker pen needs to be used, the fixing of the threaded sleeve 15 is released by rotating the fixing bolt 17, and then the main pen body 1 is rotated so that the secondary pen body 12 can rotate around the fixing seat 13 within the connecting seat 14 until the second spring 20 pushes the limit ball 19 into the interior of the fixing seat 13, and then the fixing bolt 17 is tightened to fix the position of the main pen body 1, thereby achieving the effect of unfolding and using the stored marker pen, improving the practicality of the marker pen and extending its service life. By setting the needle tip 3 inside the pen tip 2, the two operations of marking and dyeing can be combined into one step, simplifying the operation steps, shortening the operation time, reducing the patient's fear of the syringe needle scratching the cornea, and reducing the risk of needlestick injuries, etc., improving the safety during the perioperative period.
[0027] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A double-headed corneal marking pen with a needle, comprising a main pen body (1), characterized in that: A marking component is arranged inside the main pen body (1). The marking component is used for marking the position of the cornea. A first knob (4) is rotatably connected to the outer wall of the main pen body (1). A fixing plate (5) is fixedly connected inside the first knob (4). A limiting disk (6) is fixedly connected to the outer wall of the fixing plate (5). A limiting groove (7) is formed inside the limiting disk (6). A limiting rod (8) is slidably connected inside the limiting disk (6). The outer wall of the limiting rod (8) is slidably connected inside the limiting groove (7). A sliding plate (9) is fixedly connected to the outer wall of the limiting rod (8). The outer wall of the sliding plate (9) is slidably connected to a turntable (10). The outer wall of the turntable (10) is fixedly connected inside the main pen body (1). A first spring (11) is arranged inside the turntable (10). One end of the first spring (11) is fixedly connected inside the turntable (10), and the other end of the first spring (11) is fixedly connected to the outer wall of the sliding plate (9). A secondary pen body (12) is slidably connected to the outer wall of the fixing plate (5). The outer wall of the limiting disk (6) is rotatably connected inside the secondary pen body (12).
2. The double-headed corneal marker pen according to claim 1, characterized in that: The marking component includes a pen tip (2). The outer wall of the pen tip (2) is fixedly connected inside the main pen body (1). A needle tip (3) is fixedly connected inside the pen tip (2).
3. The double-headed needle corneal marker pen according to claim 2, characterized in that: A fixing seat (13) is fixedly connected to the outer wall of the secondary pen body (12). A connecting seat (14) is rotatably connected to the outer wall of the fixing seat (13).
4. The double-headed corneal marker pen according to claim 3, wherein: A threaded sleeve (15) is rotatably connected inside the connecting seat (14). The outer wall of the threaded sleeve (15) is fixedly connected inside the secondary pen body (12). A second knob (16) is fixedly connected to the top of the outer wall of the threaded sleeve (15).
5. The double-headed corneal marker pen according to claim 4, wherein: A fixing bolt (17) is rotatably connected inside the connecting seat (14). The outer wall of the fixing bolt (17) is threadedly connected inside the threaded sleeve (15).
6. The double-headed corneal marker pen according to claim 5, wherein: A sleeve (18) is fixedly connected inside the connecting seat (14). A limiting ball (19) is slidably connected inside the sleeve (18).
7. A double-headed corneal marker pen according to claim 6, characterized in that: The outer wall of the limiting ball (19) is slidably connected inside the fixing seat (13).
8. The double-headed corneal marker pen according to claim 7, characterized in that: A second spring (20) is arranged inside the sleeve (18). One end of the second spring (20) is fixedly connected inside the sleeve (18), and the other end of the second spring (20) is fixedly connected to the outer wall of the limiting ball (19).