Mark for surgical navigation

Abstract

The utility model provides a mark for surgical navigation, and relates to the field of surgical navigation tools. Comprising a mark body, a first mark point and a second mark point which are arranged at an interval are arranged on the upper surface of the mark body, the first mark point is of an asymmetric structure, and the second mark point and the first mark point are of a non-rotational symmetry structure; when a plurality of mark bodies are used, the relative distance between the first mark point and the second mark point on each mark body is different. By setting the directions and the distances between the first mark points and the second mark points on different mark bodies to be different, different mark bodies can be quickly identified and positioned during image scanning, the different mark bodies do not need to be numbered in advance, registration and positioning can be quickly performed, and the lost mark body can be found.

Description

Technical Field

[0001] This utility model relates to the field of surgical navigation tools, and more specifically, to a marker for surgical navigation. Background Technology

[0002] With the widespread application of minimally invasive surgery in recent years and the increasing demands for the accuracy of instrument or implant positioning during surgery, medical image-guided assisted positioning or surgical navigation systems have seen significant development.

[0003] For brain tumor resection surgery, preoperative navigation using CT imaging technology is required. Current brain CT surgical navigation markers are similar to button shapes, each with an identical structure. Before surgery, these markers must be numbered, such as 1, 2, 3, 4, etc. After taking the images, it's necessary to compare the images to identify which numbered marker corresponds to which location. This process requires experienced surgeons and demands excellent eyesight; it's tedious, time-consuming, and inefficient in navigation registration. Furthermore, if one marker is lost, it's difficult to pinpoint exactly which one is missing, further hindering the surgeon's work. Utility Model Content

[0004] The purpose of this invention is to provide a surgical navigation marker that can quickly identify the relative positional relationship between two marker points through image scanning, thereby quickly identifying different marker bodies and enabling rapid registration or positioning of the marker bodies.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A surgical navigation marker includes a marker body. The upper surface of the marker body is provided with two spaced-apart first marker points and second marker points. The first marker points have an asymmetrical structure, and the second marker points have a non-rotationally symmetric structure with respect to the first marker points. When multiple marker bodies are used, the relative distance between the first marker points and the second marker points on each marker body is different.

[0007] Furthermore, in this utility model, the marking body is button-shaped, including a patch layer and a support ring. The patch layer is disposed at the bottom of the support ring and is used to adhere to the skin. The first marking point and the second marking point are disposed at the top of the support ring. The support ring has a developing function.

[0008] Furthermore, in this invention, the support ring is a silicone body containing a developer.

[0009] Furthermore, in this invention, the patch layer is an adhesive coated on the bottom surface of the support ring.

[0010] Furthermore, in this utility model, the first marking point is a protrusion or depression set on the top of the support ring, and the second marking point is a depression or protrusion formed on the top of the support ring.

[0011] Furthermore, in this invention, the first marker point is an asymmetrical triangle.

[0012] Furthermore, in this invention, the three vertices of the triangle are located on the inner and outer edges of the support ring, respectively.

[0013] Furthermore, in this invention, the second marking point can be of any shape.

[0014] Furthermore, in this invention, the length or width of the arbitrary shape is the same as the distance between the inner and outer diameters of the support ring.

[0015] This utility model has at least the following advantages or beneficial effects:

[0016] This invention sets a first marker point and a second marker point at intervals on the upper surface of the marker body. The first marker point is set as an asymmetrical structure, and the second marker point is a non-rotationally symmetric structure with the first marker point. This allows the second marker point to be quickly identified in the clockwise or counterclockwise direction of the first marker point, and the distance of the second marker point relative to the first marker point can be quickly detected. By setting different directions and distances between the first and second marker points on different marker bodies, different marker bodies can be quickly identified and located during image scanning without the need to pre-number the different marker bodies. This allows for rapid registration and positioning, and the retrieval of lost marker bodies. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram comparing the structures of two surgical navigation markers provided in one embodiment of this application;

[0019] Figure 2 A side view of surgical navigation markers provided in an embodiment of this application;

[0020] Figure 3 A top view of surgical navigation markers provided in one embodiment of this application;

[0021] Figure 4A top view of surgical navigation markers provided in an embodiment of this application.

[0022] Icons: 1-Marker body, 11-Patch layer, 12-Support ring, 2-First marker point, 3-Second marker point, 21-Protrusion, 31-Depression. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] Example

[0026] Please refer to Figures 1-4 The figure shown is a schematic diagram of the structure of the surgical navigation mark in an embodiment of this utility model;

[0027] This embodiment provides a surgical navigation marker, including a marker body 1. The upper surface of the marker body 1 is provided with two spaced-apart first marker points 2 and second marker points 3. The first marker point 2 has an asymmetrical structure, and the second marker point 3 has a non-rotationally symmetrical structure with respect to the first marker point 2. When multiple marker bodies 1 are used, the relative distance between the first marker point 2 and the second marker point 3 on each marker body 1 is different.

[0028] The following will further describe a surgical navigation marker according to this exemplary embodiment.

[0029] In some embodiments of this application, reference is made to Figure 1The upper surface of the aforementioned marker body 1 is provided with two spaced-apart first marker points 2 and second marker points 3. The first marker point 2 has an asymmetrical structure. Since multiple marker bodies 1 are used simultaneously, when the distance between the second marker point 3 and the first marker point 2 on two of the marker bodies 1 is the same, but their relative directions are different, the asymmetrical first marker point 2 can serve as the zero point of the second marker point 3. This allows the second marker point 3 to be quickly identified as being on the clockwise or counterclockwise side of the first marker point 2, i.e., the zero point. The aforementioned second marker point 3 and the first marker point 2 have a non-rotationally symmetric structure. This means they can have the same shape or different shapes, but when they have the same shape, their orientations relative to the marker body 1 are different. Figure 1 As shown, this allows for rapid identification and differentiation of the two markers during image scanning, quickly identifying the zero point of the marker, and thus rapidly detecting the position of the second marker point 3 relative to the first marker point 2 on different marker bodies 1. When multiple marker bodies 1 are used, the relative distance between the first marker point 2 and the second marker point 3 on each marker body 1 is different. That is, when performing surgical navigation, the multiple marker bodies 1 used are all different. By identifying the relative positions of the first marker point 2 and the second marker point 3 on the marker body 1, the corresponding marker body 1 can be quickly located, saving doctors the work of manually numbering, improving work efficiency, enabling rapid registration during navigation, avoiding multiple identical solutions during registration, and improving registration accuracy; it also allows for rapid retrieval when a marker body 1 is lost, and the system can issue an alarm when it is lost, quickly assisting doctors in finding the missing location.

[0030] It should be noted that the relative positions between the first marker point 2 and the second marker point 3 on the different marker bodies 1 are automatically identified and encoded by the image recognition algorithm program of the pre-entered device, without the need for doctors to manually encode or manually verify.

[0031] In a preferred embodiment, the marker body 1 is button-shaped, comprising a patch layer 11 and a support ring 12. The patch layer 11 is located at the bottom of the support ring 12 and is used to adhere to the skin. The first marker point 2 and the second marker point 3 are located at the top of the support ring 12. The support ring 12 has a radiographic function. In use, the patch layer 11 is applied to the skin of the patient's brain, and the support ring 12 serves as a support for the marker points, enabling identification of the marker points through CT scan radiography.

[0032] As a preferred embodiment, the support ring 12 is a silicone body containing developer, wherein the developer is uniformly mixed in the silicone body, so that the complete support ring 12 can be quickly identified during image scanning. By setting the support ring 12 as a silicone body, it has a certain hardness and support force. Compared with the existing method of using a shell to load developer powder as a support ring, it is easier to set the first mark point 2 and the second mark point 3 on the support ring 12.

[0033] In a preferred embodiment, the patch layer 11 is an adhesive coated on the bottom surface of the support ring 12. The adhesive is a biocompatible adhesive material that can be directly bonded to the skin.

[0034] As a preferred implementation method, refer to Figure 2 The first marking point 2 is a protrusion 21 or a recess 31 located on the top of the support ring 12, and the second marking point 3 is a recess 31 or a protrusion 21 located on the top of the support ring 12. That is, the first marking point 2 can be a protrusion 21 located on the top of the support ring 12, and the second marking point 3 can be a recess 31; or the first marking point 2 can be a protrusion 21, and the second marking point 3 can be a protrusion 21; or the first marking point 2 can be a recess 31, and the second marking point 3 can be a recess 31; or the first marking point 2 can be a recess 31, and the second marking point 3 can be a protrusion 21. The protrusion 21 and the recess 31 serve as physical identification features, allowing for faster and more accurate identification on the support ring 12.

[0035] As a preferred implementation, the first marker point 2 is an asymmetrical triangle. The asymmetrical triangle as the first marker point 2 has a simple shape, is easy to make and easy to identify, and the asymmetrical structure allows the second marker point 3 to be quickly distinguished on either its clockwise or counterclockwise side.

[0036] Furthermore, the three vertices of the aforementioned triangle are located on the inner and outer edges of the support ring 12, respectively. This increases the recognition area of ​​the first marker point 2, and the fact that the three vertices are located on the inner and outer edges allows for better direction determination.

[0037] As a preferred implementation method, refer to Figure 3 and Figure 4 The second marker 3 can be of any shape. When the first marker 2 is an asymmetrical triangular structure, the second marker 3 can be distinguished from it regardless of its shape, such as a circle, ellipse, trapezoid, or triangle. When it is a triangle, it can also be distinguished and identified because it is not rotationally symmetric to the first marker 2.

[0038] Furthermore, the length or width of the aforementioned arbitrary shape is the same as the distance between the inner and outer diameters of the support ring 12. Similar to the design principle of the first marker point 2, this increases the recognition area and makes it easier to determine the direction and identify the relative positional relationship with the first marker point 2.

[0039] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A marker for surgical navigation, characterized in that, The system includes a marker body, the upper surface of which is provided with two spaced-apart first marker points and second marker points. The first marker point has an asymmetrical structure, and the second marker point has a non-rotationally symmetric structure with respect to the first marker point. When multiple marker bodies are used, the relative distance between the first marker point and the second marker point on each marker body is different.

2. The surgical navigation marker according to claim 1, characterized in that, The marker body is button-shaped and includes a patch layer and a support ring. The patch layer is located at the bottom of the support ring and is used to adhere to the skin. The first marker point and the second marker point are located at the top of the support ring. The support ring has a developing function.

3. The surgical navigation marker according to claim 2, characterized in that, The support ring is a silicone body containing a developer.

4. The surgical navigation marker according to claim 3, characterized in that, The patch layer is an adhesive coated on the bottom surface of the support ring.

5. The surgical navigation marker according to claim 3 or 4, characterized in that, The first marking point is a protrusion or depression set on the top of the support ring, and the second marking point is a depression or protrusion opened on the top of the support ring.

6. The surgical navigation marker according to claim 5, characterized in that, The first marker point is an asymmetrical triangle.

7. The surgical navigation marker according to claim 6, characterized in that, The three vertices of the triangle are located on the inner and outer edges of the support ring, respectively.

8. The surgical navigation marker according to claim 6 or 7, characterized in that, The second marker point can be of any shape.

9. The surgical navigation marker according to claim 8, characterized in that, The length or width of the arbitrary shape is the same as the distance between the inner and outer diameters of the support ring.

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