Marking device

Abstract

The utility model relates to surgical instrument field, concretely is the marking device for the ophthalmic operation (such as cataract operation, phakic posterior chamber intraocular lens implantation) of the application in need implanting astigmatism person artificial crystalline lens, the utility model discloses marking device, include: transparent main part, the central region of transparent main part has the liquid storage inner chamber, the transparent main part has the annular outer chamber around the liquid storage inner chamber, one side of the transparent main part horizontal both sides position and vertical two positions are equipped with marking hole respectively, the marking hole is connected the annular outer chamber, one side of the transparent main part that sets up marking hole has arc surface, transparent sealing cover, the transparent sealing cover seals the port of liquid storage inner chamber, the surface center position of transparent sealing cover has pupil mark point, annular marking board, the annular marking board sliding installation in the annular outer chamber, the horizontal both sides position and upper and lower two positions of the annular marking board are equipped with fixedly connected marking needle respectively.

Description

Technical Field

[0001] This utility model relates to the field of surgical tools, specifically a marking device used in ophthalmic surgeries requiring the implantation of intraocular lenses for astigmatism (such as cataract surgery and phakic intraocular lens implantation). Background Technology

[0002] Precise preoperative astigmatism axis localization is crucial before astigmatic correction intraocular lens (IOL) implantation surgery. Current standard operating procedures require the patient to be seated, and the corneal limbus to be marked at the 3-9 o'clock (horizontal) and 6-12 o'clock (vertical) positions under slit-lamp microscopy. In current clinical practice, the following two marking methods are primarily used: Mechanical scraping: Using a sterile syringe needle or other sharp instrument, a small number of corneal epithelial cells are mechanically scraped away from the target location (usually the limbus) to create a tiny wound, which is then marked with a staining agent (such as gentian violet).

[0003] Marking pen method: Use a special sterile surgical marking pen to make dot or line marks directly on the target location at the limbus.

[0004] However, the aforementioned existing technologies generally suffer from the following significant drawbacks: low operational efficiency: the marking process requires precise positioning and operation under a slit lamp, which is relatively cumbersome and time-consuming, affecting the efficiency of operating room turnover.

[0005] Tissue damage risk: Mechanical curettage carries the risk of accidental damage to the corneal stroma, Bowman's layer, or even corneal penetration by sharp instruments. Furthermore, the procedure is highly susceptible to scratching adjacent conjunctival vessels, leading to bleeding. Bleeding not only contaminates the surgical field and interferes with the clarity of markers, but also increases the risk of postoperative infection and inflammation.

[0006] Insufficient accuracy and persistence in tagging: Scraping method: The scraping range and depth are difficult to control precisely, which may result in irregular shapes and sizes of markers, affecting the accuracy of intraoperative reference. At the same time, the scraped epithelial wound is easily affected by irrigation fluids and viscoelastic agents during the operation, causing the staining agent to spread or fade, reducing the intraoperative identification of markers.

[0007] Marking technique: Marking ink is prone to smudging, spreading or partial detachment in the moist environment of the ocular surface, especially after surgical draping, rinsing and other steps. The boundaries of the marking points become blurred and the positioning accuracy decreases, making it difficult to use as a reliable axial reference.

[0008] In summary, existing corneal astigmatism marking techniques suffer from core problems such as time-consuming operation, high risk of tissue trauma, low accuracy of marking points, and poor intraoperative stability. There is an urgent need to develop a safer, more efficient, and more accurate preoperative astigmatism marking method to meet clinical needs. Utility Model Content

[0009] This invention aims to overcome the core defects of insufficient accuracy and time-consuming process in existing technologies for corneal astigmatism marking, and provides a novel astigmatism marking device or method to provide a reliable reference for the precise axial implantation of astigmatic correction intraocular lenses (Toric IOLs), thereby improving surgical outcomes.

[0010] To solve the above-mentioned technical problems, the marking device of this utility model includes: A transparent body has a liquid storage cavity in its central region; the transparent body has an annular cavity surrounding the liquid storage cavity; marking holes are provided on both horizontal sides and at the top and bottom of one side of the transparent body; the marking holes communicate with the annular cavity; the side of the transparent body with the marking holes has an arc-shaped surface; A transparent sealing cap seals the port of the liquid storage cavity; the transparent sealing cap has a pupil mark at the center of its surface, and at least two horizontal reference points are provided on both sides of the surface of the transparent sealing cap, with the horizontal reference points on both sides of the transparent body and the pupil mark at the same horizontal line; An annular marking plate is slidably installed in the annular inner cavity; marking needles are fixedly connected to the horizontal sides and the upper and lower sides of the annular marking plate, and the marking needles correspond to the marking holes; and the marking needles are at least partially located in the marking holes.

[0011] In a preferred embodiment of the marking device of this utility model, the transparent body is a cylindrical structure.

[0012] As a preferred embodiment of the marking device of this utility model, it includes a turntable rotatably mounted in the annular inner cavity; the turntable has at least three protrusions; Includes a connecting cover, which is installed at the port of the annular inner cavity, and the turntable is located between the connecting cover and the annular marking plate; The annular marking plate has at least three storage holes.

[0013] In a preferred embodiment of the marking device of this utility model, the turntable has a detachably connected lever.

[0014] In a preferred embodiment of the marking device of this utility model, the annular inner cavity has a spring hole, the diameter of which is larger than the diameter of the marking hole; It includes a spring installed in the spring hole; the marking needle is located inside the spring; one end of the spring abuts against the annular marking plate and the other end abuts against the inner wall of the transparent body.

[0015] In a preferred embodiment of the marking device of this utility model, the annular inner cavity has at least one fixedly connected limiting guide rail; The annular marking plate has a limiting groove; the limiting guide rail is at least partially located within the limiting groove.

[0016] In a preferred embodiment of the marking device of this utility model, the side of the transparent body has an adjustment hole communicating with the annular inner cavity; the lever passes through the adjustment hole and is at least partially outside the transparent body.

[0017] In a preferred embodiment of the marking device of this utility model, the transparent sealing cap has a liquid injection port.

[0018] Beneficial effects This utility model solves the above-mentioned existing problems and other existing problems not mentioned above, and brings at least the following innovative advantages: This invention relates to a marking device. Liquid is placed in the reservoir cavity, and a pupil marker and a horizontal reference point are set on a transparent sealing cap and aligned in a straight line. When the line formed by the pupil marker and the horizontal reference point is parallel to the liquid surface in the reservoir cavity, it serves as a criterion for determining that the entire device is not tilted. The marking needle is pre-coated with a dye. Pushing the annular marking plate simultaneously causes the marking needle to extend from the marking hole and mark the eye, thus solving the current problem of inaccurate marking.

[0019] The marking device of this utility model, by setting a spring between the annular marking plate and the transparent body, allows the marking needle to retract into the transparent body when not in use, as the spring elastically pushes the annular marking plate.

[0020] This utility model of marking device uses a turntable with protrusions and a ring-shaped marking plate with storage holes. When the turntable is rotated clockwise or counterclockwise, the protrusions can switch back and forth between the position of the storage hole and the position of abutting the ring-shaped marking plate, thereby adjusting the extension and reset of the marking needle. Attached Figure Description

[0021] Figure 1 This is a first-person perspective view of the present invention. Figure 2 This is a perspective view of the present invention from a second perspective; Figure 3 This is a front view of the present invention. Figure 4 This is an exploded view of the present invention; Figure 5 for Figure 3 Cross-sectional view of position AA in the middle; Figure 6 for Figure 3 Cross-sectional view of the middle BB position; Figure 7 This is a three-dimensional enlarged view of the annular marking plate of this utility model component; Figure 8 This is a three-dimensional enlarged view of the turntable component of this utility model.

[0022] In the diagram: 1. Transparent main body, 2. Liquid storage cavity, 3. Annular cavity, 4. Marking hole, 5. Arc-shaped surface, 6. Transparent sealing cap, 7. Pupil marking point, 8. Annular marking plate, 9. Marking needle, 10. Turntable, 11. Protrusion, 12. Connecting cap, 13. Storage hole, 14. Lever, 15. Spring hole, 16. Spring, 17. Limiting guide rail, 18. Limiting slide groove, 19. Adjustment hole, 20. Liquid injection port, 21. Horizontal reference point. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings.

[0024] In the accompanying drawings, the same reference numerals represent the same parts. It should be noted that the described embodiments are only some, not all, of the embodiments disclosed herein.

[0025] Based on the embodiments described in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0026] like Figures 1 to 8 As shown, the marking device of this utility model includes a transparent body 1. Figure 4 The transparent body 1 is shown to have a liquid storage cavity 2 in its central region; the transparent body 1 has an annular cavity 3 surrounding the liquid storage cavity 2; Figure 2 The transparent body 1 is shown to have marking holes 4 on both horizontal sides and at the top and bottom of one side; for example... Figure 5 As shown, the marking hole 4 is connected to the annular inner cavity 3; Figure 2 , Figure 4 and Figure 5 The transparent body 1 is shown with an arc-shaped surface 5 on one side where the marking hole 4 is located. It also includes a transparent sealing cap 6. Figure 5 and Figure 6 This demonstrates how the transparent sealing cap 6 seals the port of the liquid storage cavity 2; as shown. Figure 1 As shown, the transparent sealing cover 6 has a pupil mark 7 at the center of its surface, and at least two horizontal reference points 21 are provided on both sides of its surface. Figure 1 This demonstrates that the horizontal reference points 21 on both sides of the transparent main body 1 are on the same horizontal line as the pupil marker point 7. It includes an annular marker plate 8, which is slidably installed within the annular inner cavity 3; as shown... Figure 7 As shown, the annular marking plate 8 is provided with fixedly connected marking needles 9 at the horizontal sides and the top and bottom positions, respectively. Figure 5 The marking needle 9 is shown to correspond to the marking hole 4; and the marking needle 9 is at least partially located within the marking hole 4.

[0027] like Figure 1 As shown, the transparent sealing cap 6 has a liquid injection port 20, and at least the area of ​​the liquid injection port 20 is made of transparent soft rubber material. In use, the liquid storage cavity 2 is filled with liquid. When the liquid storage cavity 2 is filled with liquid, the present invention is used as shown in the figure. Figure 5 When the vertical angle shown is maintained upright, and the transparent body 1 is aligned with the horizontal reference points 21 on both sides, the pupil marker point 7, and the liquid level, all on the same horizontal line; or when the liquid level is parallel to the straight line formed between the horizontal reference points 21 on both sides of the transparent body 1 and the pupil marker point 7, it can be determined that the transparent body 1 is not tilted. Therefore, when marking the eye, it is confirmed that the marking device of this utility model is not at a tilt angle.

[0028] This new marking device, by filling the liquid storage cavity 2 with liquid and setting a pupil marking point 7 and a horizontal reference point 21 on the transparent sealing cover 6 and keeping them in a straight line, can be used as a basis for judging that the overall device of this invention is not tilted when the straight line formed by the pupil marking point 7 and the horizontal reference point 2 is parallel to the liquid surface in the liquid storage cavity 2. The marking needle 9 is pre-coated with dye. When the annular marking plate 8 is pushed, the marking needle 9 is simultaneously driven by the annular marking plate 8 to extend out of the marking hole 4 to mark the eye, thereby solving the problem of inaccurate marking in the current method.

[0029] Figure 4 This demonstrates that the annular inner cavity 3 has a spring hole 15. Figure 5 This demonstrates that the diameter of the spring hole 15 is larger than the diameter of the marking hole 4; Figure 4 The demonstration also included spring 16, such as Figure 5As shown, the spring 16 is installed in the spring hole 15; the marking needle 9 is located inside the spring 16; one end of the spring 16 abuts against the annular marking plate 8, and the other end abuts against the inner wall of the transparent body 1. This marking device, by providing a spring between the annular marking plate 8 and the transparent body 1, allows the marking needle 9 to retract into the transparent body 1 when not in use, as the spring 16 elastically pushes the annular marking plate 8.

[0030] like Figure 4 As shown, the annular inner cavity 3 has at least one fixedly connected limiting guide rail 17; the annular marking plate 8 has a limiting groove 18; the limiting guide rail 17 is at least partially located within the limiting groove 18. This utility model marking device, by providing a limiting guide rail 17 in the annular inner cavity 3 and providing a limiting groove on the annular marking plate 8, ensures that when the annular marking plate 8 is installed in the annular inner cavity 3, the limiting guide rail 17 is at least partially located within the limiting groove 18.

[0031] Figure 1 and Figure 2 As shown, the transparent main body 1 has a cylindrical structure. Figure 4 Four marking holes 4 and four marking needles 9 are shown.

[0032] like Figure 4 As shown, it also includes a turntable 10, which is rotatably mounted in the annular inner cavity 3; Figure 8 The turntable 10 is shown to have at least three protrusions 11. Figure 5 and Figure 6 and Figure 4 The diagram shows a connecting cover 12, which is installed at the port of the annular inner cavity 3, with the turntable 10 positioned between the connecting cover 12 and the annular marking plate 8; as shown. Figure 7As shown, the annular marking plate 8 has at least three receiving holes 13. When the turntable 10 rotates, it can drive the protrusion 11 to be at least partially located within the receiving holes 13 or to abut against the annular marking plate 8. Since the annular marking plate 8 is limited by the limiting guide rail 17 and the limiting slide groove 18, the annular marking plate 8 can only slide back and forth in the annular cavity 3 without rotating; therefore, when the turntable 10 is rotated and the protrusion 11 abuts against the annular marking plate 8, the protrusion 11 can push the annular marking plate 8 and the marking needle 9 to move outward; while when the protrusion is within the receiving hole 13, the annular marking plate 8 and the marking needle 9 are reset under the push of the spring 16. The marking device of this utility model has a protrusion 11 on the turntable 10 and a storage hole 13 on the annular marking plate 8. When the turntable 10 is rotated clockwise or counterclockwise, the protrusion 11 can switch back and forth between the position of the storage hole 13 and the position of abutting the annular marking plate 8, thereby realizing the adjustment of the extension and reset of the marking needle 9.

[0033] Among them, such as Figure 4 As shown, the turntable 10 has a detachably connected lever 14. Figure 4 and Figure 1 It is also shown that the side of the transparent body 1 has an adjustment hole 19 communicating with the annular inner cavity 3; the lever 14 passes through the adjustment hole 19 and is at least partially outside the transparent body 1.

[0034] The terms "first," "second," and similar words used in the specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" mean that the elements or objects preceding "comprising" cover the elements or objects listed after "comprising" or "including" and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are only used to indicate relative positional relationships, and these relative positional relationships may also change accordingly when the absolute position of the described object changes.

[0035] The embodiments described herein are merely a single implementation of this utility model. For those skilled in the art, other embodiments can be obtained based on the accompanying drawings without any creative effort, and these embodiments are also within the protection scope of this utility model.

Claims

1. A marking device, characterized in that, include: A transparent body having a liquid-retaining cavity in its central region; the transparent body also having an annular cavity surrounding the liquid-retaining cavity; The transparent body has marking holes on both horizontal sides and at the top and bottom of one side; the marking holes are connected to the annular inner cavity; the side of the transparent body with the marking holes has an arc-shaped surface; A transparent sealing cap seals the port of the liquid storage cavity; the transparent sealing cap has a pupil mark at the center of its surface, and at least two horizontal reference points are provided on both sides of the surface of the transparent sealing cap, with the horizontal reference points on both sides of the transparent body and the pupil mark at the same horizontal line; An annular marking plate is slidably installed in the annular inner cavity; marking needles are fixedly connected to the horizontal sides and the upper and lower sides of the annular marking plate, and the marking needles correspond to the marking holes; and the marking needles are at least partially located in the marking holes.

2. The marking device according to claim 1, characterized in that, The transparent main body has a cylindrical structure.

3. The marking device according to claim 1, characterized in that, Includes a turntable rotatably mounted in the annular inner cavity; the turntable has at least three protrusions; Includes a connecting cover, which is installed at the port of the annular inner cavity, and the turntable is located between the connecting cover and the annular marking plate; The annular marking plate has at least three storage holes.

4. The marking device according to claim 3, characterized in that, The turntable has a detachably connected lever.

5. The marking device according to claim 1, characterized in that, The annular inner cavity has a spring hole, the diameter of which is larger than the diameter of the marking hole; It includes a spring installed in the spring hole; the marking needle is located inside the spring; one end of the spring abuts against the annular marking plate and the other end abuts against the inner wall of the transparent body.

6. The marking device according to claim 1, characterized in that, The annular inner cavity has at least one fixedly connected limiting guide rail; The annular marking plate has a limiting groove; the limiting guide rail is at least partially located within the limiting groove.

7. The marking device according to claim 4, characterized in that, The side of the transparent body has an adjustment hole communicating with the annular inner cavity; the lever passes through the adjustment hole and is at least partially outside the transparent body.

8. The marking device according to claim 1, characterized in that, The transparent sealing cap has a liquid injection port.

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