Bionic structured light registration tool for medical field

Abstract

The utility model relates to the technical field of scanning, and provides a bionic structured light registration tool used in the medical field, which comprises a carrier used for placing scanning equipment; the target is arranged on the carrier and can be accurately identified and positioned by scanning equipment; the bionic piece is arranged on the carrier, a plurality of scanning positions are arranged on the bionic piece, and the bionic piece can enable scanning equipment to perform scanning registration before or after scanning different real objects. The multiple scanning positions are arranged on the bionic piece, configuration can be carried out according to different object scanning positions, namely, registration can be carried out before scanning of any object scanning position, independent registration can be carried out after scanning of any object and before the scanning accuracy is insufficient, and therefore the accuracy of scanning of any object is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of scanning technology, specifically to a biomimetic structured light registration tool for use in the medical field. Background Technology

[0002] 3D scanning is mainly used to scan the spatial shape, structure, and color of objects to obtain the spatial coordinates of the object's surface; its applications include: medical field, film and entertainment, etc.

[0003] In the medical field, 3D scanning technology can perform detailed 3D reconstruction of human anatomy, helping doctors to understand the patient's body structure and lesions in detail before surgery, and to develop more precise surgical plans. It can also provide surgical plans and postoperative assessments for patients undergoing plastic surgery and craniofacial repair, providing accurate 3D models.

[0004] In the medical field, it is necessary to ensure the accuracy of 3D scanning to prevent medical accidents during treatment. The existing registration method is to register the surface of the registration fixture as a plane or simple texture, and then register it by light scanning. However, this kind of fixture is difficult to register according to different scanning positions, which will result in missing registration point clouds during scanning, making it difficult to register accurately.

[0005] To ensure accuracy, registration is required before use or after a certain period of use. During registration, different parts need to be scanned to correspond to different registration positions, which means different point clouds are needed to ensure the accuracy of registration. Summary of the Invention

[0006] To address the shortcomings of existing technologies in achieving precise registration for different body parts, the purpose of this invention is to provide a biomimetic structured light registration fixture for the medical field that facilitates multiple alignments.

[0007] To solve the above problems, this utility model provides the following technical solution:

[0008] A biomimetic structured light registration tool for medical applications includes: a carrier for placement on a scanning device;

[0009] A target is placed on the carrier, and the target can be accurately identified and located by a scanning device;

[0010] A biomimetic component is disposed on the carrier, and the biomimetic component is provided with multiple scanning positions. The biomimetic component enables the scanning device to perform scanning registration before or after scanning different objects.

[0011] In some embodiments, the biomimetic component includes a registration assembly and a biomimetic surface;

[0012] The biomimetic curved surface is provided on the carrier, and the biomimetic curved surface protrudes outward;

[0013] The registration component is disposed on the biomimetic curved surface, and the registration component includes multi-scan registration positions.

[0014] In some embodiments, the radius of curvature of the biomimetic surface is between 8 and 12 mm.

[0015] In some embodiments, the registration component includes protrusions and / or recesses.

[0016] The protrusions can correspond to the protruding or recessed parts of different actual objects;

[0017] The depression can correspond to the protruding or recessed parts of different actual objects.

[0018] In some embodiments, the protrusion is conical, and the top of the cone is hemispherical;

[0019] In some embodiments, the recess is an inverted cone shape, with the base of the inverted cone being hemispherical.

[0020] In some embodiments, the height of the protrusion is between 8 and 18 mm;

[0021] The bottom diameter of the protrusion is between 6 and 10 mm.

[0022] In some embodiments, the depth of the recessed portion is between 1 and 3 mm;

[0023] The top diameter of the recess is between 3 and 8 mm.

[0024] In some embodiments, the structured light registration fixture further includes a target ball mounting column for placing steel balls.

[0025] In some embodiments, there are four or more target ball mounting columns, and the tops of any four target ball mounting columns are not coplanar.

[0026] The beneficial effects of this utility model are: by providing multiple scanning positions on the bionic part, it can be configured according to different physical object scanning positions. That is, it can be registered before scanning any physical object scanning position, or it can be registered separately after scanning any physical object before the scanning accuracy is insufficient, thereby ensuring the accuracy when scanning any physical object. Attached Figure Description

[0027] Figure 1 This is a perspective view of the present utility model;

[0028] Figure 2 This is a visual diagram of the height of the biomimetic curved surface of this utility model.

[0029] Figure label:

[0030] 100. Structured light registration fixture; 110. Carrier; 120. Target; 130. Bionic component; 140. Target ball mounting column;

[0031] 131. Registration component; 131a. Protrusion; 131b. Recess; 132. Bionic surface. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0033] 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 indicated technical features. 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, "multiple" means two or more, unless otherwise explicitly specified.

[0034] For ease of description of the first, second, and third directions in the embodiments of this application, the first direction is the left-right direction in the figures, the second direction is the front-back direction in the figures, and the third direction is the up-down direction in the figures. The x-axis arrow direction is referred to as the "right" direction, the y-axis arrow direction as the "up" direction, and the z-axis arrow direction as the "back" direction, but these are not the sole limitations in the actual application of this application.

[0035] like Figures 1-2As shown, this embodiment provides a biomimetic structured light registration fixture 100 for the medical field, which includes a carrier 110, a target 120, and a biomimetic component 130. The carrier 110 can be placed on a scanning device; the target 120 is disposed on the carrier 110, and the target 120 can be accurately identified and positioned by the scanning device; the biomimetic component 130 is disposed on the carrier 110, and the biomimetic component 130 has multiple scanning positions, which allows the scanning device to perform scanning registration before or after scanning different objects. That is, after the carrier 110 is loaded onto the registration position on the structured light 3D scanning device, the target 120 on the carrier 110 is accurately identified and positioned by the scanning device as a high-precision reference target, thereby helping the registration component 131 to achieve accurate registration of point data and point cloud stitching. The bionic component 130 has multiple scanning positions, which can be registered before scanning any physical object scanning position according to different physical object scanning positions, or can be registered separately after scanning any physical object before the scanning accuracy is insufficient, thereby ensuring the accuracy when scanning any physical object.

[0036] In this embodiment, the biomimetic curved surface 132 can be facial biomimetic, that is, it is designed based on the fact that the face is curved and the nose, eyes and mouth are raised or recessed.

[0037] like Figures 1-2 As shown, in this embodiment, the bionic component 130 includes a registration component 131 and a bionic surface 132. The bionic surface 132 is disposed on the carrier 110, and protrudes outward 131a. The registration component 131 is disposed on the bionic surface 132 and includes multiple scanning positions, allowing the scanning device to perform scanning registration before or after scanning different objects. The outward protrusion of the bionic surface 132 ensures that the registration component 131 gradually rises from the outside to the inside, making all registration components 131 visible and preventing point cloud loss due to lack of recognition during registration, thus guaranteeing the accuracy of the scanning device. The registration component 131 includes multiple scanning registration positions, enabling registration to be performed at any scanning position before or after a period of time, depending on the object's scanning position.

[0038] like Figure 2 As shown, in this embodiment, the radius of curvature of the biomimetic surface 132 is between 8 and 12 mm. By using the radius of curvature of the biomimetic surface between 8 and 12 mm, the lack of point cloud is effectively reduced, ensuring the accuracy of subsequent registration.

[0039] In some embodiments, the optimal curvature is a radius of 10 mm for the biomimetic curvature.

[0040] like Figure 1As shown, in this embodiment, the registration component 131 includes a protrusion 131a and / or a recess 131b. The protrusion 131a can correspond to different protruding or recessed parts of the actual object; the recess 131b can also correspond to different protruding or recessed parts of the actual object. Based on the arrangement of the protrusions 131a and the recess 131b, the registration height and position can be pre-arranged according to different scanning positions, and different protrusions 131a or recesses 131b can be selected according to different object scans to complete the pre-registration.

[0041] In some embodiments, the registration component 131 may be used in conjunction with protrusions 131a and recesses 131b, which can better simulate the protrusions or recesses at different locations.

[0042] In some embodiments, the registration component 131 may be just a protrusion 131a, which can also simulate the height difference at different positions.

[0043] In some embodiments, the registration component 131 may be only the recess 131b, which can also simulate the height difference at different locations.

[0044] like Figure 1 As shown, in this embodiment, the protrusion 131a is conical, and the top of the cone is hemispherical. The conical design makes it gradually taper from bottom to top, reducing interference caused by excessive thickness at the top. The conical shape also prevents the overall cylindrical shape from deforming due to excessive thinness. The hemispherical top makes the scanning clearer.

[0045] like Figure 1 As shown, in this embodiment, the recess 131b is an inverted cone shape, and the bottom of the recess 131b is semi-circular; the cone-shaped design and the hemispherical bottom make the scanning clearer and prevent point cloud loss.

[0046] like Figure 1 As shown, in this embodiment, the height of the protrusion 131a is between 8-18mm; the bottom diameter of the protrusion 131a is between 6-10mm. That is, the height of the protrusion 131a is selected according to the required registration height to ensure registration accuracy.

[0047] like Figure 1 As shown, in this embodiment, the depth of the recess 131b is between 1 and 3 mm; the top diameter of the recess 131b is between 3 and 8 mm. That is, the depth of the recess 131b is selected according to the required registration height, and the higher the registration height, the shallower the depth of the recess 131b, ensuring the accuracy of registration.

[0048] like Figures 1-2As shown, in this embodiment, the structured light registration fixture 100 also includes a target ball mounting post 140 for placing steel balls. In use, since structured light is mainly applied to surface three-dimensional scanning, it sometimes needs to be combined with the internal three-dimensional view of a CT scanner to ensure accurate positioning during lesion treatment. The alignment method involves placing the steel ball on the target ball mounting post 140, ensuring that the center of the steel ball is concentric with the center of the CT target ball, thereby guaranteeing accuracy and preventing secondary danger to the patient.

[0049] like Figures 1-2 As shown, in this embodiment, there are four or more target ball mounting columns 140, and the tops of any four target ball mounting columns 140 are not coplanar. This ensures that the alignment can be judged from different heights, thereby ensuring accuracy.

[0050] In summary, this utility model provides a biomimetic structured light registration fixture for the medical field. The biomimetic component has multiple scanning positions, which can be configured according to different physical object scanning positions. That is, registration can be performed before scanning any physical object scanning position, or individual registration can be performed after scanning any physical object before the scanning accuracy is insufficient, thereby ensuring the accuracy when scanning any physical object.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A biomimetic structured light registration fixture for use in the medical field, characterized in that, include: Carrier, the carrier being placed in the scanning device; A target is placed on the carrier, and the target can be accurately identified and located by a scanning device; A biomimetic component is disposed on the carrier, and the biomimetic component is provided with multiple scanning positions. The biomimetic component enables the scanning device to perform scanning registration before or after scanning different objects.

2. The biomimetic structured light registration fixture for the medical field according to claim 1, characterized in that: The biomimetic component includes a registration assembly and a biomimetic curved surface; The biomimetic curved surface is provided on the carrier, and the biomimetic curved surface protrudes outward; The registration component is disposed on the biomimetic curved surface, and the registration component includes multi-scan registration positions.

3. The biomimetic structured light registration fixture for the medical field according to claim 2, characterized in that: The radius of curvature of the biomimetic surface is between 8 and 12 mm.

4. The biomimetic structured light registration fixture for the medical field according to claim 2, characterized in that: The registration component includes protrusions and / or recesses. The protrusions can correspond to the protruding or recessed parts of different actual objects; The depression can correspond to the protruding or recessed parts of different actual objects.

5. The biomimetic structured light registration fixture for the medical field according to claim 4, characterized in that: The protrusion is conical, and the top of the cone is hemispherical.

6. The biomimetic structured light registration fixture for the medical field according to claim 4, characterized in that: The depression is in the shape of an inverted cone, and the bottom of the inverted cone is hemispherical.

7. The biomimetic structured light registration fixture for the medical field according to claim 4, characterized in that: The height of the protrusion is between 8-18 mm; The bottom diameter of the protrusion is between 6 and 10 mm.

8. The biomimetic structured light registration fixture for the medical field according to claim 4, characterized in that: The depth of the recessed area is between 1 and 3 mm; The top diameter of the recess is between 3 and 8 mm.

9. The biomimetic structured light registration fixture for the medical field according to claim 1, characterized in that: The structured light registration fixture also includes a target ball mounting column for placing steel balls.

10. The biomimetic structured light registration fixture for the medical field according to claim 9, characterized in that: There are four or more target ball mounting columns, and the tops of any four target ball mounting columns are not coplanar.

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