Material drawing template for manufacturing gasket material for posterior sclera reinforcement and manufacturing device of material drawing template
By using image data acquisition and 3D printing technology, a suitable spacer template is generated, which solves the problems of inefficiency and inaccuracy in spacer fabrication during scleral reinforcement surgery for high myopia, and achieves efficient and accurate spacer fabrication, thereby improving the quality of surgery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-03-10
AI Technical Summary
In existing technologies, the fabrication of scleral reinforcement pads for high myopia is time-consuming and labor-intensive, and it is difficult to accurately cover the lesion area, resulting in unsatisfactory surgical outcomes.
Using an image data acquisition device, a data processing device, and a 3D printing device, the patient's eyeball data is collected by an MRI scanner to generate a suitable three-dimensional and two-dimensional template for the pad. The pad template is made of a malleable material such as polyethylene, which enables precise cutting and printing.
It improves the efficiency and precision of pad fabrication, ensures surgical quality, adapts to individual differences among patients, and enhances the accuracy and effectiveness of surgery.
Smart Images
Figure CN223979895U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a template for making posterior scleral reinforcement pads and its manufacturing device. Background Technology
[0002] High myopia is defined as a refractive error exceeding 600 degrees. Patients with high myopia typically have an elongated eyeball axial length, thinner eyeball walls, and may exhibit leopard-spot-like atrophy in the fundus. This is often accompanied by a series of fundus damages, impacting visual quality and daily life, and in severe cases, leading to blindness. The progression from emmetropia to myopia, from gradually increasing myopia to high myopia, and from high myopia to pathological myopia, eventually causes the eyeball wall to become increasingly thin, like an inflating balloon, leading to various fundus complications such as macular atrophy, macular tears, retinal tears, retinal detachment, posterior staphyloma, and peripheral retinal degeneration. These fundus lesions can cause severe, irreversible visual impairment and even blindness.
[0003] Posterior scleral reinforcement surgery for high myopia is a surgical method used to slow the progression of high myopia, especially pathological myopia. Its principle is to reinforce the sclera at the posterior pole of the eyeball with allogeneic or autologous biological materials or synthetic materials to stop or slow the development of myopia. These materials, such as silicone sponge, allogeneic sclera, or fascia lata, are implanted at the back of the eyeball and fuse with the sclera, thereby enhancing the mechanical strength of the sclera, preventing axial elongation of the eyeball, improving local blood circulation, thus delaying or stopping the progression of myopia and reducing the occurrence of complications.
[0004] In existing technologies, pads are often made manually on the operating table. This method is time-consuming, labor-intensive, and inefficient. In addition, because the shape of the staphyloma cannot be directly observed, it is impossible to accurately and completely cover the lesion area. Furthermore, the accuracy of pads made manually on-site is not high, which may result in unsatisfactory surgical outcomes. Utility Model Content
[0005] In order to solve the problems in the prior art, this utility model provides a template for making posterior scleral reinforcement pads and a device for making them.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0007] A template for preparing posterior scleral reinforcement pads, characterized in that it includes a three-dimensional state and a planar state;
[0008] In a three-dimensional state, the spacer template includes a three-dimensional structure. The spacer template includes a first reinforcing area in the middle and first connecting strips on both sides. The shape of the first reinforcing area is adapted to the shape of the staphyloma in the three-dimensional model of the patient's eyeball, and the shape of the first connecting strips is adapted to the shape of the corresponding position of the eyeball body in the three-dimensional model of the patient's eyeball.
[0009] In a planar state, it includes a gasket planar template formed by unfolding the gasket three-dimensional template into a flat structure. The gasket planar template includes a second reinforcing area in the middle and second connecting strips on both sides. The second reinforcing area and the second connecting strips correspond to the first reinforcing area and the first connecting strip, respectively. The upper contour of the second reinforcing area is a curve that is smoothly connected by several arcs and convex upwards. The lower contour of the second reinforcing area is a curve that is smoothly connected by several arcs and convex upwards. The contour of the second connecting strip is a long strip that is smoothly connected by several curves.
[0010] Preferably, the gasket three-dimensional template and the gasket flat template are made of ductile material.
[0011] Preferably, the ductile material is polyethylene.
[0012] A device for fabricating a template for making posterior scleral reinforcement pads includes an image data acquisition device, a data processing device, and a 3D printing device, which are sequentially connected by signal lines.
[0013] The image data acquisition device is used to collect data from the patient's eyeballs;
[0014] The data processing device is used to process the patient's eyeball data collected by the image data acquisition device into a three-dimensional model of the patient's eyeball and a three-dimensional model of a pad template that is adapted to the patient's eyeball. The three-dimensional model of the pad template is then used to generate a planar unfolded model of the pad template, and finally, 3D printing data is generated.
[0015] The 3D printing device is used to print a template for making a posterior scleral reinforcement pad material based on 3D printing data. The printed template is a flat template for the pad.
[0016] Preferably, the image data acquisition device is a nuclear magnetic resonance spectrometer.
[0017] Preferably, the spacer three-dimensional template and the spacer flat template are made by a material sampling template manufacturing device for making spacer materials for posterior scleral reinforcement surgery.
[0018] The beneficial effects of this utility model are:
[0019] By using image data acquisition devices, data processing devices, and 3D printing devices, a suitable pad template can be accurately manufactured for each patient based on their specific circumstances. The pad is then made according to this template, which not only improves the efficiency of the surgery but also enhances the precision of the pad, ensuring the quality of the surgery. Attached Figure Description
[0020] Figure 1 This is a front view of a 3D model of the eyeball;
[0021] Figure 2 This is a schematic diagram of a 3D printing system;
[0022] Figure 3 This is a schematic diagram showing the connection between the 3D model of the eyeball and the 3D template of the pad;
[0023] Figure 4 This is the front view of the gasket flat template;
[0024] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Detailed Implementation
[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0026] Example 1:
[0027] An apparatus for fabricating a template for making posterior scleral reinforcement pads includes an image data acquisition device, a data processing device 4, and a 3D printing device 5, which are sequentially connected via signal lines 6.
[0028] In this embodiment, the image data acquisition device is a nuclear magnetic resonance spectrometer 3.
[0029] During operation, the MRI scanner 3 first acquires image data of the patient's eyeball and the staphyloma located on the eyeball. Then, the MRI scanner 3 transmits the image data to the data processing device 4 via the signal line 6. The data processing device 4 generates a three-dimensional model 1 of the patient's eyeball based on the image data. The three-dimensional model 1 of the eyeball includes the eyeball body 11 and the staphyloma 12 protruding on the eyeball body 11. Next, the data processing device 4 draws a matching 3D model of the pad template 7a based on the position, area, and shape of the staphyloma 12 on the eyeball body 11. Then, the data processing device 4 generates a planar unfolded model of the pad template 7b from the 3D model of the pad template 7a drawn on the three-dimensional model of the eyeball 1. Finally, the data processing device 4 converts the three-dimensional model data of the eyeball 1 and the planar unfolded model data of the pad template 7b into 3D printing data supported by the 3D printing device 5 and transmits the 3D printing data to the 3D printing device 5 via the signal line 6. The 3D printing device 5 prints the three-dimensional model of the eyeball 1 and the planar pad template 7b based on the 3D printing data.
[0030] The nuclear magnetic resonance spectrometer 3, the data processing device 4, and the 3D printing device 5 are all existing technologies and are not related to the present invention, so they will not be described in detail here.
[0031] Example 2:
[0032] A template for making posterior scleral reinforcement pad material is made by a template making device for making posterior scleral reinforcement pad material as described in Example 1, and includes a three-dimensional state and a planar state.
[0033] In the three-dimensional state, the spacer template 7a includes a three-dimensional structure. The spacer template 7a includes a first reinforcing area 72a in the middle and first connecting strips 71a on both sides. The shape of the first reinforcing area 72a is adapted to the shape of the staphyloma 12 on the three-dimensional model 1 of the patient's eyeball, and the shape of the first connecting strip 71a is adapted to the shape of the corresponding position of the eyeball body 11 on the three-dimensional model 1 of the eyeball.
[0034] In the planar state, it includes a gasket planar template 7b, which is a flat structure formed by unfolding the gasket three-dimensional template 7a. It includes a second reinforcing area in the middle and second connecting strips on both sides. The longitudinal profile of the second reinforcing area and the second connecting strip is composed of several smoothly transitioned curves. In this embodiment, the second reinforcing area is a planar reinforcing area 72b. The upper profile of the planar reinforcing area 72b is a curve that is smoothly transitioned by several arcs and protrudes upward. The lower profile of the planar reinforcing area 72b is a curve that is smoothly transitioned by several arcs and protrudes upward. The second connecting strip is a planar connecting strip 71b. The profile of the planar connecting strip 71b is a long strip composed of several smoothly transitioned curves.
[0035] The medical staff placed the pad template 7b on the pad material for the posterior scleral reinforcement surgery, cut out the corresponding shape of the pad according to the shape of the pad template 7b, and then placed the cut pad on the patient's eyeball corresponding to the staphyloma 2 and attached it to the scleral wall behind the limbus in front of the eyeball. The attachment position corresponds to the marked position of the three-dimensional model 1 of the eyeball. Next, the medical staff sutured and fixed the pad on the patient's eyeball.
[0036] The three-dimensional spacer template 7a is made of a stretchable material, so it can be unfolded into a planar spacer template 7b. In this embodiment, the stretchable material is polyethylene. Furthermore, the spacer material for posterior scleral reinforcement surgery has a certain degree of stretchability. When it is applied to the patient's eyeball corresponding to the staphyloma 2, it can fit perfectly to the patient's eyeball corresponding to the staphyloma 2 after a slight external force is applied.
[0037] The above embodiments are only used to illustrate and not limit the technical solutions of this utility model. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the utility model without departing from the spirit and scope of the utility model. Any modifications or partial substitutions should be covered within the scope of the claims of this utility model.
[0038] If the terms "first" or "second" are used in this document to define the components, those skilled in the art should know that the use of "first" or "second" is merely for the convenience of describing this utility model and simplifying the description, and unless otherwise stated, the above terms have no special meaning.
[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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.
[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances.
Claims
1. A donor template for making a posterior scleral reinforcement patch material, characterized by, The stereoscopic state and the planar state are included; In the stereoscopic state, the stereoscopic template (7a) of the spacer includes a first reinforcing area (72a) in the middle and first connecting bands (71a) on both sides, the first reinforcing area (72a) is shaped to match the shape of the staphyloma (12) of the three-dimensional model of the eyeball of the patient, and the first connecting bands (71a) are shaped to match the shape of the corresponding positions of the eyeball body (11) of the three-dimensional model of the eyeball of the patient; In the planar state, the planar template (7b) of the spacer includes a flat plate structure formed by unfolding the stereoscopic template (7a) of the spacer, the planar template (7b) of the spacer includes a second reinforcing area (72b) in the middle and second connecting bands (71b) on both sides, the second reinforcing area (72b) and the second connecting bands (71b) correspond to the first reinforcing area (72a) and the first connecting bands (71a) respectively, the upper end profile of the second reinforcing area (72b) is a curve formed by smoothly connecting a plurality of arc lines and protruding upward, and the lower end profile of the second reinforcing area (72b) is a curve formed by smoothly connecting a plurality of arc lines and protruding upward; the profile of the second connecting bands (71b) is a long strip formed by smoothly connecting a plurality of curves.
2. A donor template for making a posterior scleral reinforcement patch material according to claim 1, wherein, The stereoscopic template (7a) and the planar template (7b) of the spacer are made of a ductile material.
3. A donor template for making a posterior scleral reinforcement patch material according to claim 2, wherein, The ductile material is polyethylene.
4. A device for manufacturing a template for producing posterior scleral reinforcement pad materials, characterized in that, The image data acquisition device, the data processing device (4), and the 3D printing device (5) are sequentially connected by signal lines (6); The image data acquisition device is used to acquire the eyeball data of the patient; The data processing device (4) is used to process the eyeball data of the patient acquired by the image data acquisition device into a three-dimensional model of the eyeball of the patient, a three-dimensional model of the stereoscopic template (7a) of the spacer adapted to the eyeball of the patient, generate a planar unfolded model of the planar template (7b) of the spacer from the three-dimensional model of the stereoscopic template (7a) of the spacer, and finally generate 3D printing data; The 3D printing device (5) is used to print a material taking template for making a spacer material for posterior scleral reinforcement surgery according to any one of claims 1-3, which is the planar template (7b) of the spacer.
5. An apparatus for making a template for cutting a posterior scleral reinforcement patch material according to claim 4, wherein, The image data acquisition device is a nuclear magnetic resonance instrument (3).