A skin scribing device

By designing a combination of a flexible ruler with elongated holes and auxiliary lines and a support, the problem of the high operational difficulty of existing skin marking devices is solved, achieving more efficient and precise skin marking and improving the accuracy of treatment.

CN224269448UActive Publication Date: 2026-05-26BEIJING CHEST HOSPITAL CAPITAL MEDICAL UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING CHEST HOSPITAL CAPITAL MEDICAL UNIV
Filing Date
2025-04-08
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The width of the elongated hole in the existing skin marking device is inconsistent with the width of the laser line, which makes the operation difficult and lacks fixed support, increasing the difficulty for medical staff to mark the patient's side.

Method used

A skin marking device comprising a spring ruler and a support was designed. The spring ruler has elongated holes and auxiliary lines, is mounted on the support for calibrating laser projection lines, and is supported on a positioning integrated plate to provide stable marking.

Benefits of technology

This reduced the difficulty for staff in marking lines, improved the accuracy and efficiency of marking lines, and ensured the precision of lesion treatment for patients.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application provides a skin marking device, belonging to the field of medical auxiliary tool technology. The marking device includes a spring ruler and a support. The spring ruler is mounted on the support, which is mounted on a positioning integrated plate for marking lines on the side of the chest. An elongated hole is provided on the spring ruler, and a skin marking pen is placed inside the elongated hole and moves along the hole to draw lines. Auxiliary lines are provided on the spring ruler, located at both ends of the elongated hole, and are used to check the laser projection lines. This improves both the accuracy and efficiency of the marking. Furthermore, all marked line segments are upright and of uniform thickness, ultimately improving the precision of lesion treatment for patients.
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Description

Technical Field

[0001] This application belongs to the field of medical assistive tool technology, specifically relating to a skin marking device. Background Technology

[0002] In conventional radiotherapy, such as chest radiotherapy, the patient needs to lie on a positioning plate. The treatment requires that the patient's position relative to the plate be fixed for each treatment session. Specifically, after the patient lies in position on the positioning plate along a fixed scale, three-dimensional laser lines (red or green light) are projected onto the patient's chest and the skin on both sides of the chest. From each perspective, the laser projection lines appear as two perpendicular cross lines on the skin surface. Medical staff need to use a skin marker to draw lines on the patient's skin along the laser projection lines.

[0003] The width of the elongated hole of the relevant scribing device is the same as the width of the laser line. When scribing, the laser line is placed exactly in the elongated hole, which requires multiple adjustments and makes the operation difficult. When scribing the skin on the side of the patient, the staff has to bend over and turn to the side to operate. The lower end of the scribing device lacks fixed support, which further increases the difficulty of operation. Utility Model Content

[0004] Therefore, the purpose of this application is to provide a skin marking device that at least solves one technical problem existing in the prior art.

[0005] To address the aforementioned issues, this application provides a skin marking device, comprising an elastic ruler and a support. The elastic ruler is mounted on the support, which is mounted on a positioning integrated plate for marking lines on the side of the chest. The elastic ruler has an elongated hole, into which a skin marking pen is placed and moves to mark lines. The elastic ruler also has auxiliary lines located at both ends of the elongated hole, which are used to verify the laser projection lines.

[0006] Optionally, the elongated hole is arranged along the length direction of the elastic ruler, and the length of the elongated hole is less than the length of the elastic ruler.

[0007] Optionally, the elongated hole is located at the middle of the length direction of the elastic ruler and at the same time at the middle of the width direction of the elastic ruler.

[0008] Optionally, the auxiliary line is arranged along the length direction of the elastic ruler and located at the middle of the width direction of the elastic ruler.

[0009] Optionally, the elastic ruler is provided with a scale, which is arranged along the length direction of the elastic ruler.

[0010] Optionally, the scale on one side of the elastic ruler is in SI units, and the scale on the other side of the elastic ruler is in a non-SI unit format.

[0011] Optionally, the surface of the elastic ruler facing away from the auxiliary line is provided with a self-absorbing layer.

[0012] Optionally, the bracket is a right-angle bracket.

[0013] Optionally, the bracket includes a first arm and a second arm, with a handhold provided between the first arm and the second arm.

[0014] Optionally, one end of the elastic ruler is provided with an elastic ruler connecting part; the first support arm end of the bracket is provided with a bracket connecting part, and the elastic ruler connecting part is connected to the bracket connecting part so that the elastic ruler is connected to the bracket.

[0015] By employing the above technical solution, this utility model application has at least the following beneficial effects:

[0016] The skin marking device provided in this application adds auxiliary lines on both sides of the elongated hole to check the position of the laser lamp projection line, reducing the difficulty of marking for workers and improving both accuracy and efficiency.

[0017] The skin marking device provided in this application has an elastic ruler mounted on a bracket. When marking the side of a patient's chest, the bracket is placed on a positioning plate to support the elastic ruler, which reduces the difficulty of operation for medical staff when marking the side of a patient's body.

[0018] The skin tracing device provided in this application features upright, uniformly thick tracing lines, which ultimately improves the accuracy of lesion treatment for patients. Attached Figure Description

[0019] Figure 1 This is a front view of the skin marking device according to an embodiment of this application;

[0020] Figure 2 This is a side view of the skin marking device according to an embodiment of this application;

[0021] Figure 3 This is a front view of the skin marking device according to an embodiment of this application;

[0022] Figure 4 This is a side view of the skin marking device according to an embodiment of this application.

[0023] The reference numerals in the attached figures are as follows:

[0024] 1. Elastic ruler; 2. Auxiliary line; 3. Long hole; 4. Stand; 5. Elastic ruler connecting part; 6. Handhold part; 7. Protrusion; 8. Connecting buckle; 9. Scale. Detailed Implementation

[0025] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0029] See also Figures 1 to 4 As shown, according to an embodiment of this application, a skin marking device is provided, characterized in that it includes an elastic ruler 1 and a support 4. The elastic ruler 1 is disposed on the support 4, and the support 4 is disposed on a positioning integrated plate for marking lines on the side of the chest. An elongated hole 3 is provided on the elastic ruler 1, and a skin marking pen is placed in the elongated hole 3 and moves along the elongated hole 3 to draw lines. An auxiliary line 2 is provided on the elastic ruler 1, and the auxiliary line 2 is arranged at both ends of the elongated hole 3. The auxiliary line 2 is used to check the laser projection line.

[0030] The auxiliary lines 2 are added on both sides of the elongated hole 3 along its length to check the position of the laser projection line, reducing the difficulty of line marking for staff and improving both accuracy and efficiency. When the elastic ruler 1 is mounted on the bracket 4 and used to mark lines on the side of the patient's chest, the bracket 4 is placed on the positioning integrated plate to support the elastic ruler 1, reducing the operational difficulty for medical personnel when marking lines on the side of the patient's body. All marked line segments are upright and of uniform thickness, ultimately improving the accuracy of lesion treatment for patients.

[0031] The width of the elongated hole 3 and the diameter of the auxiliary line 2 are both 1mm, which are consistent with the projection line of the laser lamp.

[0032] Specifically, in this embodiment, the elongated hole 3 is a rectangular hole; in other embodiments, it can also be an oblong hole.

[0033] In another embodiment, the elongated hole 3 is arranged along the length of the elastic ruler 1, and the length of the elongated hole 3 is less than the length of the elastic ruler 1. The elongated hole 3 is arranged along the length of the elastic ruler 1 to ensure the length of the marking line, adapting to different marking situations. The length of the elongated hole 3 is less than the length of the elastic ruler 1, firstly to leave space for the arrangement of the auxiliary line 2, and secondly to ensure that the elongated hole 3 does not penetrate the elastic ruler 1.

[0034] In another embodiment, the elongated hole 3 is located at the middle of the length direction of the elastic ruler 1, and also at the middle of the width direction of the elastic ruler 1. From the perspective of the structural stability of the elastic ruler 1, the elongated hole 3 being located in the middle can improve the overall structural strength and service life of the elastic ruler 1.

[0035] In another embodiment, the auxiliary line 2 is arranged along the length direction of the elastic ruler 1 and is located at the middle of the width direction of the elastic ruler 1.

[0036] The auxiliary lines 2 are arranged along the length of the elastic ruler 1, and are located at both ends of the elongated hole 3. In other words, the elastic ruler 1 has two auxiliary lines 2. The arrangement of these two auxiliary lines 2 is used to adjust the position of the laser projection line, ensuring that the laser projection line is precisely within the elongated hole 3, thus improving the accuracy of the marking.

[0037] Specifically, to ensure that the laser projection line is precisely positioned within the elongated aperture 3, the width of the auxiliary line 2 is consistent with the width of the elongated aperture 3. This ensures that the laser projection line is quickly drawn on the patient's skin during radiotherapy.

[0038] In another embodiment, the elastic ruler 1 is provided with a scale 9, which is arranged along the length direction of the elastic ruler 1. The length of the line is determined by the setting of the scale 9.

[0039] In another embodiment, the scale 9 on one side of the elastic ruler 1 is in SI units, while the scale 9 on the other side of the elastic ruler 1 is in a non-SI unit format. This improves the applicability of the elastic ruler 1.

[0040] In another embodiment, a self-absorbing layer is provided on the surface of the elastic ruler 1 facing away from the auxiliary line 2. The self-absorbing layer allows the elastic ruler 1 to adhere to the skin, preventing it from shifting during the drawing process and improving the accuracy of the drawing.

[0041] The elastic ruler 1 has a self-absorbing layer on its surface opposite to the auxiliary line 2. This self-absorbing layer means that the auxiliary line 2 and the self-absorbing layer are not on the same plane as the elastic ruler 1.

[0042] In other embodiments, the surface of the elastic ruler 1 can also be attached to the skin by a suction cup with a tiny position.

[0043] In another embodiment, the bracket 4 is a right-angle bracket. When in use, the side of the right-angle bracket on which the elastic ruler 1 is mounted is placed close to the patient's skin so that the elastic ruler 1 can adhere to the skin.

[0044] In another embodiment, the support 4 includes a first arm and a second arm, with a handhold 6 disposed between the first arm and the second arm. The handhold 6 is configured to provide a stable grip point for the operator, making it easier for the operator to operate the marking device.

[0045] In another embodiment, one end of the elastic ruler 1 is provided with an elastic ruler connecting part 5; the first arm end of the bracket 4 is provided with a bracket connecting part, and the elastic ruler connecting part 5 is connected to the bracket connecting part so that the elastic ruler 1 is connected to the bracket 4. The connection of the elastic ruler connecting part 5 and the bracket connecting part facilitates the installation and removal of the elastic ruler 1 on the bracket 4; when the elastic ruler 1 is damaged, only the elastic ruler 1 portion needs to be replaced.

[0046] The elastic ruler connecting part 5 has a connecting hole, and the first support arm of the bracket 4 is provided with a connecting buckle 8. The connecting hole of the elastic ruler connecting part 5 is sleeved on the connecting buckle 8 so as to install the elastic ruler 1 on the bracket 4.

[0047] Specifically, the connecting hole comprises a small hole, a slide rail, and a large hole, with the small hole and the large hole connected by the slide rail. In actual use, the large hole is fitted onto the connecting buckle 8, and the elastic ruler 1 is pulled to fit the small hole onto the connecting buckle 8 through the slide rail, thus completing the installation of the elastic ruler 1 on the bracket 4.

[0048] In other embodiments, the elastic connecting part 5 is a square block, one end of which is integrally formed with the elastic ruler 1, and the other end is provided with an insertion hole. The inner wall of the insertion hole is provided with an annular groove. The top of the first support arm of the bracket 4 is provided with an insertion block, and the outer peripheral surface of the insertion block is provided with a protrusion 7. In specific use, the elastic connecting part 5 is inserted into the protrusion 7. At this time, the annular groove and the protrusion 7 cooperate to install the elastic ruler 1 on the first support arm of the bracket 4.

[0049] The specific usage process of the scribing tool:

[0050] The first scenario involves marking lines on the surface of the chest.

[0051] First, place the elastic ruler 1 close to the skin surface and adjust its position so that the auxiliary lines 2 at both ends coincide with the projection lines of the laser light; then, use a skin marking pen to slide along the elongated hole 2 and draw lines on the surface of the chest skin.

[0052] The second scenario involves drawing lines on the side of the chest.

[0053] First, place the bracket 4 on the positioning plate, and at the same time, place the elastic ruler 1 close to the skin on the side of the chest. Adjust the position of the elastic ruler 1 so that the auxiliary lines 2 at both ends coincide with the projection lines of the laser light. Then, use a skin marking pen to slide along the elongated hole 2 and draw a line on the side of the chest skin.

[0054] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0055] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A skin marker comprising, Includes a spring ruler (1) and a bracket (4), wherein the spring ruler (1) is mounted on the bracket (4) and the bracket (4) is mounted on a positioning integrated plate to draw lines on the side of the chest; The elastic ruler (1) has an elongated hole (3), and a skin marking pen is placed in the elongated hole (3) and moves along the elongated hole (3) to draw lines; The elastic ruler (1) is provided with auxiliary lines (2), which are arranged at both ends of the elongated hole (3). The auxiliary lines (2) are used to check the laser projection lines.

2. A skin marker according to claim 1, wherein, The elongated hole (3) is arranged along the length direction of the elastic ruler (1), and the length of the elongated hole (3) is less than the length of the elastic ruler (1).

3. A skin marker according to claim 2, wherein, The elongated hole (3) is located in the middle of the length direction of the elastic ruler (1) and at the same time in the middle of the width direction of the elastic ruler (1).

4. A skin marker according to claim 1, wherein, The auxiliary line (2) is arranged along the length direction of the elastic ruler (1) and is located in the middle of the width direction of the elastic ruler (1).

5. A skin marker according to claim 1, wherein, The elastic ruler (1) is provided with a scale (9), which is arranged along the length direction of the elastic ruler (1).

6. A skin marking device according to claim 5, characterized in that, The scale (9) on one side of the elastic ruler (1) is in SI length, and the scale (9) on the other side of the elastic ruler (1) is in non-SI length.

7. The skin marking device according to claim 1, characterized in that, The elastic ruler (1) has a self-absorbing layer on the surface away from the auxiliary line (2).

8. The skin marking device according to claim 1, characterized in that, The bracket (4) is a right-angle bracket.

9. The skin marking device according to claim 7, characterized in that, The bracket (4) includes a first arm and a second arm, and a hand-held part (6) is provided between the first arm and the second arm.

10. The skin marking device according to claim 9, characterized in that, One end of the elastic ruler (1) is provided with an elastic ruler connecting part (5); the first arm end of the bracket (4) is provided with a bracket connecting part, and the elastic ruler connecting part (5) is connected to the bracket connecting part so that the elastic ruler (1) is connected to the bracket (4).