Surgical marking pen

Abstract

The invention discloses an operation marking pen, and relates to the technical field of medical instruments, the operation marking pen comprises a marking pen body, an upper sealing cover is installed at the upper end of the marking pen body in a threaded mode, the outer surface of the end, away from the upper sealing cover, of the marking pen body is sleeved with a pen point cover, marking teeth are rotatably installed at the end, away from the upper sealing cover, of the pen point cover, and the operation marking pen further comprises a replaceable sealing adjusting structure; the replaceable sealing adjusting structures are respectively arranged in the marking pen, the upper sealing cover and the pen point cover, and are used for replacing and immersing the replaceable pen point A and the replaceable pen point B; before use, the pen point can be soaked in the solvent through the gentian violet solution in the pen point cover, the scribing pen and the upper sealing cover; compared with a traditional mark, the scheme has the advantages that volatilization of a solvent can be reduced, the pen point can be disinfected again and then soaked in the gentian violet solution again after use is finished, and therefore the phenomenon that marking is not clear during marking can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, in particular to a surgical scriber. Background Art

[0002] Medical marking pens play a vital role in surgical operations and some medical operations. They are indispensable tools for preoperative planning and intraoperative positioning marking. Currently, there are many types of medical marking pens on the market, each with different characteristics and advantages.

[0003] However, in current medical practice, doctors usually need to use marking tools to mark the incision position or to locate the incision during surgery. However, the marking tools commonly used at present have many inconveniences.

[0004] Doctors often use standard, commercially available markers for marking. These pens come pre-filled with ink, making them convenient for preoperative use. However, the problem is that these liquid-based pens cannot withstand the high-temperature, autoclave, ethylene oxide, or chemical immersion sterilization typically required in hospitals. Therefore, these markers are inconvenient when positioning during surgery is necessary.

[0005] On the other hand, some doctors choose to use a toothpick dipped in methylene blue injection to mark the line. While this method can be used during surgery, it can lead to choppy lines, uneven clarity, and difficulty adjusting the thickness of the line. While using a thinned toothpick for marking may be more convenient in clinical practice, the procedure is relatively complex and has significant limitations during surgery.

[0006] Furthermore, for surgeries requiring only preoperative incision lines and no intraoperative positioning, the preoperative lines can become blurred due to surgical sterilization. Furthermore, redrawing the lines during surgery is inconvenient, forcing the surgeon to rely on intuition for incision, which compromises the surgical outcome.

[0007] Therefore, a surgical marking pen is proposed to solve the above problems. Summary of the Invention

[0008] In view of this, the technical problem to be solved by the present invention is to propose a surgical marking pen to solve the problems of unclear marking and complex adjustment of the thickness of the marking in the prior art.

[0009] To achieve the above-mentioned object, the present invention provides the following technical solution: a surgical marking pen, comprising a marking pen, wherein an upper cover is threadedly mounted on the upper end of the marking pen, a nib cover is sleeved on the outer surface of an end of the marking pen away from the upper cover, and a marking tooth is rotatably mounted on the end of the nib cover away from the upper cover, and the surgical marking pen further comprises a replaceable sealing adjustment structure;

[0010] The replaceable sealing adjustment structure is respectively arranged in the marking pen, the upper cover and the pen tip cover, and the replaceable sealing adjustment structure is used for replacing and dipping the replaceable pen tip A and the replaceable pen tip B.

[0011] Preferably, a replaceable nib A is threadedly mounted on the middle part of the end of the marking pen away from the upper cover, an alcohol storage shell is fixedly mounted on the outer surface of the nib cover, and medical cotton swabs are evenly arranged in the alcohol storage shell, and a curved alcohol cover is fixedly mounted on the outer surface of the marking pen close to the nib cover, the alcohol storage shell is sleeved on the curved alcohol cover, the alcohol storage shell is evenly filled with sponges, and medical alcohol is injected into the alcohol storage shell, and a replaceable nib B is respectively arranged in the marking pen and the nib cover, and the nib thickness of the replaceable nib B in the marking pen and the replaceable nib B in the nib cover are different.

[0012] Preferably, the replaceable sealing adjustment structure includes a pressure ring, which is slidably connected to the inner wall of the marking pen, a circular hole is opened in the middle of the pressure ring, a return spring is fixedly installed on the pressure ring, a fixed disk is fixedly installed on the end of the return spring away from the pressure ring, the outer surface of the fixed disk is fixedly connected to the inner wall of the marking pen, the pressure ring is fixedly connected to a connecting rod near the inner circumference of the return spring, and the connecting rod is fixedly connected to a triangle plate at one end away from the pressure ring.

[0013] Preferably, a cap is fixedly installed on the upper surface of the middle part of the triangular plate, the outer surface of the connecting rod is slidably connected to the fixed disk, a cap is installed in the middle of the fixed disk, a hole is opened in the middle of the cap, the cap is adapted to the size of the hole, and the cap is made of corrosion-resistant flexible material.

[0014] Preferably, the replaceable nib B passes through the circular hole in the middle of the fixed disk, the outer surface of the nib of the replaceable nib B is squeezed in the plug cap, the inner surface of the plug cap is installed with a sealing gasket, and the sealing gasket is used to seal the outer surface of the nib of the replaceable nib B and the plug cap, the marking pen, the upper cover and the inner wall of the nib cover are all installed with a one-way liquid inlet valve, the inside of the nib of the marking pen near the replaceable nib B is injected with solvent through the one-way liquid inlet valve, the inner wall of the nib of the nib cover near the replaceable nib A is injected with solvent through the one-way liquid inlet valve, and the inner wall of the nib of the upper cover near the replaceable nib B is injected with solvent through the one-way liquid inlet valve, and the solvent is used for marking with the replaceable nib B.

[0015] Preferably, a sliding groove is provided in the middle of one side of the triangular plate away from the cap plug, a clamping chamber is fixedly installed on the outer circumference of the triangular plate sliding groove, a trapezoidal clamping block is slidably connected in the clamping chamber, a compression spring is fixedly connected to the trapezoidal clamping block, and one end of the compression spring away from the trapezoidal clamping block is fixedly connected in the clamping chamber.

[0016] Preferably, the marking pen has a fixed shaft fixedly connected to the upper cover and the pen tip cover respectively, the bottom end of the fixed shaft is fixedly connected to a semi-arc pressure block, the outer surface of the fixed shaft is slidably connected to a double-bevel block, and the size of the semi-arc pressure block is adapted to the size of the slide groove opened on the triangular plate.

[0017] Preferably, a guide hole is opened in the middle of the marking tooth, a clamping plate is fixedly connected to the outer surface of the end of the marking tooth away from the pen tip cover, and a positioning ball is fixedly connected to the middle of the end of the marking tooth away from the pen tip cover.

[0018] Compared with the prior art, the present invention provides a surgical marking pen with the following beneficial effects:

[0019] 1. Multifunctional integrated design

[0020] Arc drawing mechanism: Through the socket structure of the rotating component and the base, combined with the centering adjustment of the positioning point, accurate circular marking function is achieved;

[0021] The marking tooth rotates in conjunction with the pen tip cover, so that the bottom of the marking tooth fits the marking area. A disposable sticker is installed on the bottom of the marking tooth. Before use, the protective film of the sticker on the bottom of the marking tooth can be peeled off and the marking tooth can be attached to the area to be marked. The bottom of the marking tooth fits the skin, thereby reducing the deviation and shaking caused by the unstable marking tooth when marking.

[0022] Nib protection system: The rotating assembly can be reset to the nib storage position, and a replaceable sealing adjustment structure forms a closed protection cabin to prevent solvent volatilization;

[0023] Self-cleaning soaking module: The one-way liquid inlet valve and solvent chamber support the injection of gentian violet solution. Cooperating with the sealing adjustment mechanism, it can realize soaking and disinfection while soaking the pen tip. At the same time, it can make the pen tip soaked with more solvent, reduce the phenomenon of unclear lines when drawing, and can be reused for a long time.

[0024] The pen tip is replaceable. The replaceable pen tip design allows for easy replacement after each use, effectively preventing the risk of cross-contamination caused by residual bacteria or viruses on the pen tip. Furthermore, the replaceable pen tip design facilitates individual sterilization before use, ensuring that the pen tip remains sterile when in contact with the patient's skin or tissue.

[0025] 2. Error Correction Optimization Design

[0026] Integrated erasing device: alcohol storage shell number components built-in evenly distributed)

[0027] Quick correction function: supports instant erasure of erroneous marks during surgery;

[0028] Material integration: reduce reliance on auxiliary tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the structural connection of the marking pen and the pen tip cover in the separated state of the present invention;

[0031] Figure 3 This is a schematic diagram of the connection relationship of the arc drawing state structure of the present invention;

[0032] Figure 4 It is a partially exploded schematic diagram of the three-dimensional structure of the present invention;

[0033] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0034] Figure 6 This is a schematic diagram of the connection relationship of the state structure of the present invention;

[0035] Figure 7 This is a schematic diagram of the connection relationship between the marking pen and the upper cover half-cut structure of the present invention;

[0036] Figure 8 For the present invention Figure 7 Enlarged view of point B in the middle;

[0037] Figure 9 This is a schematic diagram of the structural connection relationship between the marking pen and the upper cover in a separated state when the replaceable pen tip A structure of the present invention is replaced;

[0038] Figure 10 For the present invention Figure 9 Enlarged view of point C in the middle.

[0039] In the picture:

[0040] 1. Marking pen; 11. Upper cover; 12. Pen tip cover; 13. Marking teeth; 14. Replaceable pen tip A; 15. Alcohol storage case; 16. Medical cotton swab; 17. Curved alcohol cap; 18. Replaceable pen tip B;

[0041] 21. Pressing ring; 22. Return spring; 23. Connecting rod; 24. Fixed plate; 25. Insert cap; 26. Triangular plate; 27. Cap plug; 28. Snap-fit ​​chamber; 29. ​​Trapezoidal snap-fit ​​block;

[0042] 31. Semi-arc pressure block; 32. Fixed shaft; 33. Double-bevel block; 34. One-way liquid inlet valve;

[0043] 41. Guide hole; 42. Positioning ball; 43. Snap-in plate. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] Example 1;

[0046] Referring to the accompanying drawings, a marking pen 110 includes a marking pen 1, an upper cover 11 being threadedly mounted on the upper end of the marking pen 1, a nib cover 12 being sleeved on the outer surface of the end of the marking pen 1 away from the upper cover 11, and a marking tooth 13 being rotatably mounted on the end of the nib cover 12 away from the upper cover 11. A surgical marking pen also includes a replaceable sealing adjustment structure;

[0047] The replaceable sealing adjustment structure is respectively provided in the marking pen 1, the upper cover 11 and the pen tip cover 12. The replaceable sealing adjustment structure is used for replacing and dipping the replaceable pen tip A14 and the replaceable pen tip B18;

[0048] Among them, the diameter range of the replaceable pen tip A14 pen tip brush is 0.2~0.4mm; the diameter range of the replaceable pen tip B18 pen tip brush is 0.5~1mm and the diameter range of the pen tip brush is 3~6mm;

[0049] Specifically, such as Figures 1 to 4 As shown, a replaceable pen tip A14 is threadedly mounted on the middle portion of one end away from the upper cover 11, an alcohol storage shell 15 is fixedly mounted on the outer surface of the pen tip cover 12, and medical cotton swabs 16 are evenly arranged in the alcohol storage shell 15. A curved alcohol cover 17 is fixedly mounted on the outer surface of the side of the marking pen 1 close to the pen tip cover 12, the alcohol storage shell 15 is sleeved on the curved alcohol cover 17, the alcohol storage shell 15 is evenly filled with sponges, and medical alcohol is injected into the alcohol storage shell 15. A replaceable pen tip B18 is respectively provided in the marking pen 1 and the pen tip cover 12, and the replaceable pen tip B18 in the marking pen 1 and the replaceable pen tip B18 in the pen tip cover 12 have different nib thicknesses;

[0050] Among them, in this solution, two replaceable pen tips B18 are respectively provided, and the two pen tips are of different sizes. In this solution, the replaceable pen tip B18 can be replaced by rotating the marking pen 1 and the upper cover 11 and pressing the replaceable pen tip B18 respectively. The thread is installed at the bottom of the marking pen 1, and the replaceable pen tip A14 can be replaced by rotating the replaceable pen tip A14. The design of the replaceable pen tip makes it easy to replace a new pen tip after each use, thereby effectively preventing the risk of cross contamination caused by residual bacteria or viruses in the pen tip;

[0051] At the same time, the design of the replaceable pen tip facilitates individual sterilization before use, ensuring that the pen tip is sterile when it comes into contact with the patient's skin or tissue. It should be noted that methylene blue itself is a disinfectant, so methylene blue can still be used instead of gentian violet solution during surgery. At the same time, this solution is contraindicated for people who are allergic to methylene blue or gentian violet solvents.

[0052] In this plan, the replaceable pen tip A14 and the replaceable pen tip B18 are made of soft and elastic nylon fiber with moderate flexibility and not easy to shed hair. The ultra-fine nail brush is lightweight and ergonomically designed, comfortable to hold and easy to operate. During preoperative design, the pen tip is soaked in methylene blue injection to draw fine lines on the eyelid; first, the lines of the pen tip of this material can provide effective and accurate information on the eyelid; second, the brush head has appropriate flexibility, which reduces the patient's discomfort; third, the brush head with a longer tip can store enough methylene blue injection, lasting for a long time and avoiding pigment residue; fourth, the tool can be repeatedly disinfected (soaked in 75% ethanol for 60 seconds) to reduce the risk of infection.

[0053] By changing the material settings, the lines are clear and smooth, and continuous, full, and clear marks that are not easy to break can be drawn. The pen tip has a certain compression resilience, which can fit the skin and provide a comfortable writing feel.

[0054] Specifically, the replaceable sealing adjustment structure includes a pressure ring 21, which is slidably connected to the inner wall of the marking pen 1. A circular hole is opened in the middle of the pressure ring 21, and a return spring 22 is fixedly installed on the pressure ring 21. A fixed disk 24 is fixedly installed on the end of the return spring 22 away from the pressure ring 21. The outer surface of the fixed disk 24 is fixedly connected to the inner wall of the marking pen 1. A connecting rod 23 is fixedly connected to the inner circumference of the pressure ring 21 near the return spring 22, and a triangular plate 26 is fixedly connected to the end of the connecting rod 23 away from the pressure ring 21.

[0055] The triangular plate 26 is evenly provided with triangular holes, which can reduce the obstruction of the solvent during the movement of the triangular plate 26;

[0056] A cap plug 27 is fixedly mounted on the upper surface of the middle portion of the triangular plate 26. The outer surface of the connecting rod 23 is slidably connected to the fixed plate 24. A plug cap 25 is mounted in the middle portion of the fixed plate 24. A socket is formed in the middle portion of the plug cap 25. The plug cap 27 is adapted to the socket and is made of corrosion-resistant flexible material.

[0057] Among them, Figure 8 As shown, when the replaceable pen tip B18 is removed from the marking pen 1 or the upper cover 11 by pressing, the elastic expansion of the return spring 22 drives the pressure ring 21 to start sliding along the inner wall of the marking pen 1 or the upper cover 11. At this time, the elastic expansion of the return spring 22 drives the pressure ring 21 to pull the triangular plate 26 upward. When the cap plug 27 and the middle of the insert cap 25 squeeze each other and close, the solvent on the inner wall of the fixed disk 24 near the triangular plate 26 is prevented from leaking. At the same time, the marking solvent is gentian violet solution, which is used for surgical marking.

[0058] The replaceable pen tip B18 passes through the circular hole in the middle of the fixed disk 24. The outer surface of the pen tip of the replaceable pen tip B18 is squeezed into the plug cap 25. The inner surface of the plug cap 25 is installed with a sealing gasket, and the sealing gasket is used to seal the outer surface of the pen tip of the replaceable pen tip B18 and the plug cap 25. The marking pen 1, the upper cover 11 and the inner wall of the pen tip cover 12 are all installed with a one-way liquid inlet valve 34. The inside of the pen tip of the marking pen 1 near the replaceable pen tip B18 is injected with solvent through the one-way liquid inlet valve 34. The inner wall of the pen tip cover 12 near the replaceable pen tip A14 is injected with solvent through the one-way liquid inlet valve 34. The inner wall of the pen tip of the upper cover 11 near the replaceable pen tip B18 is injected with solvent through the one-way liquid inlet valve 34. The solvent is used for marking with the replaceable pen tip B18;

[0059] Among them, the pen tips of the replaceable pen tip B18 and the replaceable pen tip A14 are made of wood. Before use, the pen tips are immersed in the solvent by soaking them in the gentian violet solution in the pen tip cover 12, the marking pen 1 and the upper cover 11 respectively; compared with traditional marking, this solution can not only reduce the volatilization of the solvent, but also the pen tip can be disinfected again after use and then soaked in the gentian violet solution again, thereby reducing the phenomenon of unclear marking when marking.

[0060] like Figure 10 As shown, a slide groove is provided in the middle of one side of the triangle plate 26 away from the cap plug 27, and a clamping chamber 28 is fixedly installed on the outer circumference of the slide groove of the triangle plate 26, and a trapezoidal clamping block 29 is slidably connected in the clamping chamber 28. A compression spring is fixedly connected to the trapezoidal clamping block 29, and one end of the compression spring away from the trapezoidal clamping block 29 is fixedly connected to the clamping chamber 28; the marking pen 1, the upper cover 11 and the nib cover 12 are respectively fixedly connected to a fixed shaft 32, the bottom end of the fixed shaft 32 is fixedly connected to a semi-arc-shaped pressure block 31, and the outer surface of the fixed shaft 32 is slidably connected to a double-bevel block 33, and the size of the semi-arc-shaped pressure block 31 is adapted to the size of the slide groove provided on the triangle plate 26;

[0061] The double-bevel block 33 slides on the fixed shaft 32, and the sealing and opening and closing of the plug 25 and the cap 27 can be achieved by squeezing the trapezoidal clamping block 29; and reasonable sealing can reduce the volatilization of the solution.

[0062] A guide hole 41 is formed in the middle of the marking tooth 13, a clamping plate 43 is fixedly connected to the outer surface of the end of the marking tooth 13 away from the pen tip cover 12, and a positioning ball 42 is fixedly connected to the middle of the end of the marking tooth 13 away from the pen tip cover 12;

[0063] The guide hole 41 can be used to guide the pen tip when marking. At the same time, a sticker is installed at the bottom of the marking tooth 13, which can be used to stick on the skin when marking, thereby preventing the marking tooth 13 from swinging when marking, and the sticker on the marking tooth 13 can be replaced after use; the positioning ball 42 can be used as Figure 3 As shown, drawing an arc on the skin can reduce scratches on the skin due to the positioning effect of the clamping plate 43;

[0064] The specific implementation process is as follows:

[0065] First, as Figure 2 As shown, at this time, the operator can separate the pen tip cover 12 from the marking pen 1 by pulling the pen tip cover 12, so that the replaceable pen tip A14 is separated from the pen tip cover 12, as shown in FIG. Figure 6 As shown, at this time, the operator can slide the pen tip along the guide hole 41. At the same time, since the marking teeth 13 are respectively provided with scale lines on both sides of the guide hole 41, the medical staff can be assisted in marking. At the same time, a disposable sticker is installed at the bottom of the marking teeth 13. Before use, the protective film of the sticker at the bottom of the marking teeth 13 can be peeled off, and the marking teeth 13 can be attached to the area to be marked, so that the bottom of the marking teeth 13 fits the skin, thereby reducing the deviation and shaking caused by the instability of the marking teeth 13 when the marking pen 1 is marking.

[0066] Furthermore, when the thickness of the replaceable pen tip A14 needs to be changed before marking, Figure 7 and Figure 10 As shown, Figure 5 The replaceable pen tip B18 is in the undetached state. At this time, the return spring 22 is in the compressed state. The semi-arc-shaped pressing block 31 is engaged in the sliding groove of the engaging chamber 28 through the trapezoidal engaging block 29. Figure 8 As shown, the operator can separate the threaded upper cover 11 by rotating the marking pen 1. Figure 8 As shown, at this time, the operator presses down the replaceable pen tip B18 along the marking pen 1 again, as shown in FIG. Figure 8As shown, at this time, the pressing ring 21 is squeezed by the middle of the alcohol storage shell 15, which drives the pressing ring 21 to slide downward along the inner wall of the marking pen 1. At this time, the pressing ring 21 is compressed again, and at the same time, the push of the return spring 22 drives the triangle plate 26 to start moving downward. At this time, when the triangle plate 26 is squeezed downward, as shown in FIG. Figure 8 As shown, the trapezoidal clamping block 29 starts to push and slide downward. At this time, due to the lower limit of the double-slope block 33 and the inability to slide downward, the trapezoidal clamping block 29 is squeezed by the inclined surface of the double-slope block 33 by the trapezoidal clamping block 29, which causes the trapezoidal clamping block 29 to slide to the inclined surface of the lower surface of the double-slope block 33. At this time, after the operator contacts and squeezes the replaceable pen tip B18, the return spring 22 elastically drives the return spring 22 to pull the triangular plate 26 upward. At this time, the squeezing of the lower inclined surface of the double-slope block 33 by the trapezoidal clamping block 29 drives the double-slope block 33 to slide upward along the fixed axis 32. When the double-slope block 33 is blocked by the semi-arc pressure block 31, the trapezoidal clamping block 29 can be squeezed by the lower inclined surface of the double-slope block 33 and the trapezoidal clamping block 29 to disengage the trapezoidal clamping block 29 from the double-slope block 33 and the semi-arc pressure block 31. At this time, the three The angle plate 26 begins to be elastically pressed upward and closed with the middle part of the plug cap 25 by the return spring 22. The mutual closing action of the cap plug 27 and the plug cap 25 can prevent the solvent in the lower surface of the triangle plate 26 from volatilizing. At the same time, the immersion of the replaceable pen tip B18 in the solvent can increase the clarity of the pen tip when marking and reduce the blurring when marking. Since the replaceable sealing adjustment structure is provided in the marking pen 1, the upper cover 11 and the pen tip cover 12 of the present invention, and the working principle is the same, only the replaceable sealing adjustment structure in the marking pen 1 is described above. At this time, after replacing the replaceable pen tip B18, the replaceable pen tip A14 at the bottom of the marking pen 1 is removed again, and the replaceable pen tip B18 is threadedly installed on the bottom of the marking pen 1 to complete the replacement of the pen tip thickness.

[0067] And this solution can choose to replace the pen tip according to the following scenarios:

[0068] (1) For eye surgeries such as double eyelid surgery and cleft lip repair, which require high precision, the tip of the brush is usually required to be around 0.2mm to 0.4mm in diameter, with a certain degree of toughness, easy to color when drawn on the skin, not easy to blur, and not easy to blur during the operation. In this case, the replaceable brush head A14 can be used. The diameter range of the brush tip is 0.2-0.4mm; the diameter range of the brush tip is 0.5-1mm and the diameter range of the brush tip is 3-6mm respectively;

[0069] (2) For routine surface tumor resection, flap transfer and other surgeries that still require a certain degree of precision when marking, the pen tip is usually required to be around 0.5mm to 1mm in diameter. The replaceable pen tip B18 located in the marking pen 1 can be selected.

[0070] (3) For larger surgeries such as breast reduction and waist and abdominal liposuction, a relatively thick pen tip can be used for marking the body surface, usually with a diameter of about 3mm to 6mm; in this case, the replaceable pen tip B18 located in the upper cover 11 can be selected.

[0071] This design allows for different surgical procedures or procedures to require pen tips of varying thickness, shape, or color. The interchangeable pen tip design allows doctors to select the appropriate tip based on their specific needs, improving surgical flexibility and accuracy. The interchangeable pen tip design also facilitates individual sterilization before use, ensuring the pen tip remains sterile when in contact with the patient's skin or tissue.

[0072] Example 2;

[0073] Compared with the embodiment, the difference is that Figure 3 As shown, this solution rotates the marking teeth 13 on the pen tip cover 12 at a certain angle so that the clamping plate 43 is located at the midpoint of the marking line, and then the pen tip cover 12 is placed on the outer surface of the upper end of the upper cover 11 to achieve the arc drawing function, thereby not only meeting the surgical marking needs but also achieving the synchronous arc drawing function. By adjusting the position and angle of the pen tip, the arc incision range (such as curved incisions in joint replacement or plastic surgery) can be quickly marked to ensure that the incision curvature matches the anatomical structure. At the same time, the arc radius can be adjusted in real time during the operation to adapt to the tissue resection needs of different curvatures (such as tumor edge marking), and to achieve rapid switching from a complete circle to any arc length. In addition, this solution can also be used for external plastic surgery, such as arc positioning during eyelid plastic surgery, as follows:

[0074] (1) Joint replacement / plastic surgery: Real-time marking of the curved incision line that perfectly matches the anatomical structure, with an error control of ±0.3mm;

[0075] (2) Tumor resection: The radius can be adjusted steplessly during surgery (1-50 mm continuously adjustable), quickly switching the complete circle to the desired arc segment, and accurately calibrating the resection boundary;

[0076] (3) Eyelid plastic surgery: supports 5-15mm micro-arc positioning, and cooperates with microsurgery to complete fine markings such as double eyelid lines.

[0077] At the same time, this solution can insert the pen tip of the marking pen 1 into the pen tip cover 12 again after rotating the marking teeth 13, which not only protects the pen tip, but also allows the gentian violet solution to soak the pen tip by injecting solvent into the one-way liquid inlet valve 34. At the same time, the solvent seal when the pen tip is disassembled can be achieved through the replaceable sealing adjustment structure. In addition, this solution has an alcohol storage shell 15 installed on the upper cover 11, and medical cotton swabs 16 are evenly arranged in the alcohol storage shell 15. When the operation is completed or the marking is wrong, the marking can be cleared with the medical cotton swabs 16, thereby reducing the material search when the marking is wrong. This solution can open the alcohol storage shell 15 when replacing the pen tip, and when the upper cover 11 is sealed with the marking pen 1, the alcohol cover can be sealed again, thereby preventing the evaporation of alcohol.

[0078] It should be noted that the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0079] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A surgical marking pen, characterized in that: The invention comprises a marking pen (1), wherein an upper cover (11) is threadedly mounted on the upper end of the marking pen (1), a pen tip cover (12) is sleeved on the outer surface of one end of the marking pen (1) away from the upper cover (11), and a marking tooth (13) is rotatably mounted on one end of the pen tip cover (12) away from the upper cover (11), and the surgical marking pen further comprises a replaceable sealing adjustment structure; The replaceable sealing adjustment structure is respectively arranged in the marking pen (1), the upper cover (11) and the pen tip cover (12), and the replaceable sealing adjustment structure is used for replacing and dipping the replaceable pen tip A (14) and the replaceable pen tip B (18).

2. A surgical marking pen according to claim 1, characterized in that: The marking pen (1) is provided with a replaceable pen tip A (14) threadedly mounted on the middle part of one end away from the upper cover (11); an alcohol storage shell (15) is fixedly mounted on the outer surface of the pen tip cover (12); medical cotton swabs (16) are evenly arranged in the alcohol storage shell (15); a curved alcohol cover (17) is fixedly mounted on the outer surface of the side of the marking pen (1) close to the pen tip cover (12); the alcohol storage shell (15) is sleeved on the curved alcohol cover (17); the alcohol storage shell (15) is evenly filled with sponge; medical alcohol is injected into the alcohol storage shell (15); the marking pen (1) and the pen tip cover (12) are respectively provided with a replaceable pen tip B (18); the replaceable pen tip B (18) in the marking pen (1) and the replaceable pen tip B (18) in the pen tip cover (12) have different nib thicknesses.

3. The surgical marking pen according to claim 1, characterized in that: The replaceable sealing adjustment structure comprises a pressure ring (21), the pressure ring (21) is slidably connected to the inner wall of the marking pen (1), a circular hole is opened in the middle of the pressure ring (21), a reset spring (22) is fixedly installed on the pressure ring (21), a fixed disk (24) is fixedly installed on the end of the reset spring (22) away from the pressure ring (21), the outer surface of the fixed disk (24) is fixedly connected to the inner wall of the marking pen (1), the pressure ring (21) is fixedly connected to a connecting rod (23) near the inner circumference of the reset spring (22), and the connecting rod (23) is fixedly connected to a triangular plate (26) on the end away from the pressure ring (21).

4. A surgical marking pen according to claim 3, characterized in that: A cap plug (27) is fixedly installed on the upper surface of the middle part of the triangular plate (26); the outer surface of the connecting rod (23) is slidably connected to the fixed disk (24); a plug cap (25) is installed in the middle part of the fixed disk (24); a plug hole is opened in the middle part of the plug cap (25); the cap plug (27) is adapted to the plug hole in size, and the cap plug (27) is made of corrosion-resistant flexible material.

5. The surgical marking pen according to claim 4, characterized in that: The replaceable pen tip B (18) passes through the central circular hole of the fixed plate (24), the outer surface of the pen tip of the replaceable pen tip B (18) is squeezed into the plug cap (25), the inner surface of the plug cap (25) is provided with a sealing gasket, and the sealing gasket is used to seal the outer surface of the pen tip of the replaceable pen tip B (18) and the plug cap (25), and the inner wall of the marking pen (1), the upper cover (11) and the pen tip cover (12) are all provided with a one-way liquid inlet valve (34) The marking pen (1) is provided with a solvent through a one-way liquid inlet valve (34) near the inner wall of the pen tip of the replaceable pen tip B (18), the pen tip cover (12) is provided with a solvent through a one-way liquid inlet valve (34) near the inner wall of the pen tip of the replaceable pen tip A (14), and the upper cover (11) is provided with a solvent through a one-way liquid inlet valve (34) near the inner wall of the pen tip of the replaceable pen tip B (18), and the solvent is used for marking the replaceable pen tip B (18).

6. The surgical marking pen according to claim 5, characterized in that: A sliding groove is provided in the middle of one side of the triangular plate (26) away from the cap plug (27), and a clamping chamber (28) is fixedly installed on the outer circumference of the sliding groove of the triangular plate (26). A trapezoidal clamping block (29) is slidably connected in the clamping chamber (28), and a compression spring is fixedly connected to the trapezoidal clamping block (29), and one end of the compression spring away from the trapezoidal clamping block (29) is fixedly connected in the clamping chamber (28).

7. The surgical marking pen according to claim 6, characterized in that: The marking pen (1), the upper cover (11) and the pen tip cover (12) are respectively fixedly connected with a fixed shaft (32), the bottom end of the fixed shaft (32) is fixedly connected with a semi-arc-shaped pressing block (31), the outer surface of the fixed shaft (32) is slidably connected with a double-bevel block (33), and the size of the semi-arc-shaped pressing block (31) is adapted to the size of the sliding groove provided on the triangular plate (26).

8. The surgical marking pen according to claim 1, characterized in that: A guide hole (41) is provided in the middle of the marking tooth (13); a clamping plate (43) is fixedly connected to the outer surface of one end of the marking tooth (13) away from the pen tip cover (12); and a positioning ball (42) is fixedly connected to the middle of the end of the marking tooth (13) away from the pen tip cover (12).

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