Peripheral vessel model demonstration device based on 3D printing

Abstract

The invention discloses a peripheral vessel model demonstration device based on 3D printing, relates to the technical field of teaching aids, and aims to solve the problems that an existing demonstration box cannot adjust a light source according to ambient light, so that part of vessels are inconvenient to observe due to the illumination angle problem, and the understanding and teaching quality of students are affected. In addition, some demonstration devices are inconvenient to rotate the angle of the blood vessel model, are complex to operate and are inconvenient to popularize and use. The invention provides a peripheral vessel model demonstration device based on 3D printing, and the device comprises a fixed seat, and also comprises a central shaft which is disposed in the fixed seat, the top of the central shaft is provided with a vessel model, and an adjustable light source is disposed below the vessel model; the light source adjusting mechanism is arranged on the outer side of the center shaft and can adjust the light source angle. And the whole blood vessel model can be illuminated, so that trainees at all angles can observe conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of teaching aids, and in particular to a demonstration device based on a 3D printed peripheral blood vessel model. Background Art

[0002] 3D printing technology, as an additive manufacturing technology, has been widely used in various fields. In the medical field, 3D printing technology has attracted widespread attention due to its ability to accurately manufacture complex structures. With the continuous advancement of 3D printing technology, its application in biomedical engineering is also becoming increasingly widespread, especially in the manufacture of vascular models.

[0003] Vascular malformations are common clinical diseases, with an incidence rate of about 40%-60% in the head and neck. They not only cause facial deformities and affect appearance, but may also affect physiological functions such as swallowing and breathing. In severe cases, they may be life-threatening due to infection, ulcers, and compression of the respiratory tract. The treatment of complex vascular malformations has always been a difficult problem and challenge faced clinically. The main treatment methods currently include surgical resection, sclerotherapy, laser therapy, and interventional therapy, among which sclerotherapy is widely used clinically. Most superficial vascular malformations can be diagnosed based on medical history and clinical manifestations, but imaging examinations play an irreplaceable role in the diagnosis of deep tissue lesions, comprehensive assessment of the condition, formulation of treatment plans, and assessment of prognosis.

[0004] For the peripheral vascular model device based on 3D printing, an accurate 3D model of peripheral blood vessels can be created based on the patient's medical imaging data (such as CT or MRI scans). 3D printing technology can produce vascular models with complex structures, including features such as branches, bends, and stenosis. This capability enables the model to more realistically simulate the physiological characteristics of the human vascular system. By using biocompatible materials (such as gelatin, fibrinogen, etc.) and living cells (such as endothelial cells, smooth muscle cells, etc.), a biologically active vascular model can be produced.

[0005] However, the existing display box cannot adjust the light source according to the ambient light, making some blood vessels difficult to observe due to the angle of illumination, affecting students' understanding and teaching quality. In addition, some demonstration devices are not convenient for rotating the angle of the blood vessel model, and the operation is complicated, which is not convenient for promotion and use. Summary of the invention

[0006] In view of the above-mentioned problems, the present invention aims to provide a demonstration device based on a 3D printed peripheral vascular model, which can adjust the angle of the light source as needed so that students can see the complete vascular details; and can conveniently rotate the angle of the vascular model so that students observing from all directions can observe it conveniently.

[0007] The main idea of ​​the technical solution adopted by the present invention is: through two symmetrically arranged rotating gears, the rotation of the meshing central axis can be driven to rotate, thereby causing the blood vessel model to rotate; a connecting tube is sleeved on the central axis, and the connecting tube is integrally connected with a limit plate 1 and a limit plate 2, and a lifting ring is arranged on the limit plate 1, and two groups of control components are arranged on both sides of the lifting ring, which can drive the lifting ring to slide up and down, and a light source control rod is rotatably connected to the lifting ring, and the angle of the light source control rod is driven by the up and down movement of the lifting ring, thereby adjusting the position of the light source, making the blood vessel model easy to observe.

[0008] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A demonstration device based on a 3D printed peripheral vascular model, comprising a fixing seat and: The central axis is arranged in the fixing seat, a blood vessel model is arranged on the top, and an adjustable light source is arranged below the blood vessel model; The light source adjustment mechanism is arranged outside the central axis and can adjust the position of the light source.

[0009] Through the above technical solution, further: a connecting pipe is sleeved on the central axis, a limiting plate 1 and a limiting plate 2 are fixedly arranged on the connecting pipe, and a lifting ring is arranged between the limiting plate 1 and the limiting plate 2.

[0010] Through the above technical solution, further: a plurality of groups of light source control rods are arranged on the lifting ring, and the second limiting plate is rotatably connected to the lifting ring through the light source control rods.

[0011] Through the above technical solution, further: the light source control rod includes a rotatably connected straight rod and a V-shaped rod, the straight rod is rotatably connected to the lifting ring, the V-shaped rod is rotatably connected to the rotating groove provided on the second limiting plate, and the V-shaped rod is provided with a light source.

[0012] Through the above technical solution, further: the light source adjustment mechanism includes a driving shaft arranged on both sides of the lifting ring, the driving shaft is provided with a second roller group and a second gear, the second roller group and the second gear are meshed with a first roller group and a first gear, and the first roller group and the first gear are arranged on the rotating shaft.

[0013] Through the above technical solution, further: limit plates are respectively arranged on both sides of the driving shaft and the rotating shaft, and the limit plates are provided with sliding grooves and rotating grooves, the driving shaft slides up and down in the sliding groove, and the rotating shaft is arranged in the rotating groove.

[0014] Through the above technical solution, further: a rotating rod is arranged in the fixing seat, and a conveyor belt is arranged between the rotating rod and the rotating shaft.

[0015] Through the above technical solution, further: a central gear is arranged on the central shaft, and the central gear is meshed with a rotating gear, and when the rotating gear rotates, the blood vessel model on the top of the central shaft can be driven to rotate.

[0016] A method for using a demonstration device based on a 3D printed peripheral vascular model, using a demonstration device based on a 3D printed peripheral vascular model as described in any one of the above, and the specific steps are as follows: S1. When the vascular model needs to be rotated, the rotating gear is rotated, and then the central gear is driven to rotate through the meshing action between the rotating gear and the central gear, and then the central shaft is driven to rotate, and finally the vascular model is driven to rotate; S2. When the angle of the light source needs to be adjusted, the rotating rod is rotated, thereby driving the conveyor belt on the rotating rod to rotate, and then driving the rotating shaft to rotate. A first roller group and a first gear are eccentrically arranged on the rotating shaft. When the two rotate, they drive the meshing second roller group and the second gear to rotate, thereby driving the driving shaft to move up and down in the sliding groove. Since the driving shaft is fixedly connected to the lifting ring, it can drive the lifting ring to move up and down; when the lifting ring rises, the angle between the straight rod and the V-shaped rod becomes smaller, and the V-shaped rod rotates as a whole, and the free end provided with the light source rotates to increase the height, thereby realizing the adjustment of the light source.

[0017] The beneficial effects of the present invention are: 1. When the light source angle needs to be adjusted, rotating the knob can drive the rotating rod in the base to rotate, and then drive the conveyor belt on the rotating rod to rotate. The other end of the conveyor belt is sleeved on the rotating shaft. The rotating shaft is provided with an eccentric first roller set and a first gear. When the two roll, they drive the driving shaft to move up and down. The driving shaft is fixedly connected to the lifting ring, and then drives the lifting ring to move up and down. The lifting ring is rotatably connected with a light source control rod, and the angle of the light source control rod is driven by the up and down movement of the lifting ring, thereby adjusting the position of the light source, making the blood vessel model easier to observe. When the lifting ring rises, the angle between the straight rod and the V-shaped rod becomes smaller, and the V-shaped rod rotates as a whole, and the free end provided with the light source rotates to increase the height, thereby realizing the adjustment of the light source.

[0018] 2. When the vascular model needs to be rotated, the rotating gear is rotated, and then the central gear is driven to rotate through the meshing action between the rotating gear and the central gear, and then the central axis is driven to rotate, and finally the vascular model is driven to rotate, so that the training personnel around can observe the vascular model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the fixing seat and the limiting structure of the present invention; Figure 3 for Figure 2A schematic diagram of the enlarged structure of part A; Figure 4 This is a schematic diagram of the internal three-dimensional structure of the transparent cover of the present invention; Figure 5 for Figure 4 A schematic diagram of the enlarged structure of part A; Figure 6 This is a schematic diagram of the three-dimensional structure of the present invention without the fixing base and the transparent plate; Figure 7 for Figure 6 A schematic diagram of the enlarged structure of part A; Figure 8 for Figure 6 A schematic diagram of the enlarged structure of part B; Fig. 9 for Figure 6 Schematic diagram of the three-dimensional structure from another angle; Fig.10 It is a three-dimensional structural schematic diagram of the connection relationship between the lifting ring and the limiting structure of the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the light source control rod; Fig.12 It is a schematic diagram of a blood vessel model set in the blood vessel model demonstration device of the present application, wherein the position marked with a circle is the lesion site; Fig.13 for Fig.12 Schematic diagram of the vascular system corresponding to the vascular model, obtained through CT, where the green part is the lesion site; Fig.14 This is a schematic diagram of the vascular system from another angle, where the green part is the lesion site; Wherein: 1, fixed seat; 101, base; 102, receiving box; 102-1, receiving slot; 103, support platform; 2. Central axis; 201. Central gear; 202. Support plate; 203. Transparent plate; 204. Connecting tube; 204-1. Limiting plate 1; 204-2. Limiting plate 2; 204-2-1. Rotating groove; 204-2-2. Rotating seat; 205. Lifting ring; 206. Light source control rod; 206-1. Straight rod; 206-2. V-shaped rod; 206-3. Light source; 207. Spring; 3. Rotating assembly; 301. Rotating gear; 302. Rotating handle; 4. Control assembly; 401. Propelling shaft; 402. Second roller set; 403. Second gear; 404. Rotating shaft; 405. First roller set; 406. First gear; Limiting structure; 501, limiting plate; 502, sliding slot; 503, rotating slot; 6. Conveyor belt; 7. Rotating rod; 701. Knob. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] The inventors found that the existing display box cannot adjust the light source according to the ambient light, making some blood vessels difficult to observe due to the angle of light, affecting students' understanding and teaching quality. In addition, some demonstration devices are not convenient for rotating the angle of the blood vessel model, and the operation is complicated, which is not convenient for promotion and use.

[0022] Based on the above findings, the present application proposes a demonstration device of a peripheral vascular model based on 3D printing, which can drive the meshing central axis 2 to rotate through two symmetrically arranged rotating gears 301, thereby rotating the vascular model; a connecting tube 204 is sleeved on the central axis 2, and a limiting disk 1 204-1 and a limiting disk 2 204-2 are integrally connected on the connecting tube 204, and a lifting ring 205 is provided on the limiting disk 1 204-1, and two groups of control components 4 are provided on both sides of the lifting ring 205, which can drive the lifting ring 205 to slide up and down, and a light source control rod 206 is rotatably connected to the lifting ring 205, and the angle of the light source control rod 206 is driven by the up and down movement of the lifting ring 205, thereby adjusting the position of the light source 206-3, so that the vascular model is easy to observe. When the knob 701 is rotated, it can drive the rotating rod 7 located in the base 101 to rotate, and then drive the conveyor belt 6 on the rotating rod 7 to rotate. The other end of the conveyor belt 6 is sleeved on the rotating shaft 404. The rotating shaft 404 is provided with an eccentric first roller group 405 and a first gear 406. When the two roll, they drive the driving shaft 401 to move up and down. The driving shaft 401 is fixedly connected to the lifting ring 205, thereby driving the lifting ring 205 to move up and down.

[0023] Embodiment 1 See also Figure 1-Figure 14 The present application discloses a demonstration device of a peripheral vascular model based on 3D printing, including a fixing seat 1, the fixing seat 1 includes a base 101, a containing box 102 and a supporting platform 103 which are integrally connected, and a transparent cover is clamped on the supporting platform 103 to protect and isolate the vascular model placed inside.

[0024] A receiving groove 102-1 is longitudinally opened on the top of the receiving box 102, a central axis 2 is arranged in the receiving groove 102-1, a central gear 201 is sleeved on the central axis 2, the central gear 201 and the central axis 2 are fixedly connected, a blood vessel model is arranged on the top of the central axis 2, and when the central axis 2 rotates, the blood vessel model rotates synchronously with the central axis 2.

[0025] In order to improve the stability of the blood vessel model, a support plate 202 is integrally connected to the top of the central axis 2, and a transparent plate 203 is sleeved on the support plate 202. The four sides of the transparent plate 203 match the transparent cover.

[0026] A rotating assembly 3 is provided on both sides of the containing box 102, respectively, for driving the central shaft 2 to rotate. The rotating assembly 3 includes a rotating gear 301 and a rotating handle 302 connected in one piece, the rotating gear 301 is located in the containing box 102, and the rotating handle 302 extends outward from both sides of the containing box 102. By rotating any rotating handle 302, the rotating gear 301 can be driven to rotate, and then the central gear 201 is driven to rotate through the meshing action between the rotating gear 301 and the central gear 201, and then the central shaft 2 is driven to rotate, and finally the blood vessel model is driven to rotate, so that the trainees at all angles can see all angles of the blood vessel model.

[0027] Embodiment 2 In order to adjust the angle of the light source 206-3 as needed so that students can see the complete details of the blood vessels, a connecting tube 204 is sleeved on the central axis 2, and the connecting tube 204 is integrally connected with the limiting plate 1 204-1 and the limiting plate 2 204-2. The limiting plate 1 204-1 is provided with a lifting ring 205, which is sleeved on the connecting tube 204 and can slide up and down between the limiting plate 1 204-1 and the limiting plate 2 204-2.

[0028] Two sets of control components 4 are arranged on both sides of the lifting ring 205, which can drive the lifting ring 205 to slide up and down. The control component 4 includes a driving shaft 401 fixedly connected to the lifting ring 205, and a second roller group 402 and a second gear 403 are fixedly connected to the driving shaft 401. The second roller group 402 and the second gear 403 are coaxially arranged and are not on the same axis as the driving shaft 401, that is, when the driving shaft 401 rotates, the second roller group 402 and the second gear 403 rotate eccentrically.

[0029] The limiting plate 1 204-1 is on the same plane as the support platform 103. The support platform 103 is provided with two groups of limiting structures 5, with a total of four limiting plates 501, which are respectively arranged on both sides of the lifting ring 205. Each limiting plate 501 is provided with a longitudinal sliding groove 502 and a rotating groove 503. The second roller group 402 and the second gear 403 are both located between the two limiting plates 501, and both ends of the driving shaft 401 pass through the rotating groove 503. A rotating shaft 404 is also provided in the sliding groove 502, and the rotating shaft 404 passes through the sliding grooves 502 on both sides. The first roller group 405 and the first gear 406 are rotatably provided on the rotating shaft 404, and the first roller group 405 and the second roller group 402 are meshed, and the first gear 406 and the second gear 403 are meshed. The first roller set 405 and the first gear 406 are coaxially arranged and are not on the same axis as the rotating shaft 404 , that is, when the rotating shaft 404 rotates, the second roller set 402 and the second gear 403 rotate eccentrically.

[0030] A rotating rod 7 is provided in the base 101, and knobs 701 are provided at both ends of the rotating rod 7. A conveyor belt 6 is sleeved on the rotating rod 7, and the other end of the conveyor belt 6 is sleeved on the rotating shaft 404. Since the conveyor belt 6 is adjacent to the rotating handle 302, in order not to affect each other's work, two support rods are provided on the containing box 102. The support rods are located on both sides of the rotating handle 302, which can prop up the conveyor belt 6 to avoid interference with the rotating handle 302.

[0031] When the knob 701 is rotated, the rotating rod 7 in the base 101 can be driven to rotate, and then the conveyor belt 6 on the rotating rod 7 can be driven to rotate, and then the rotating shaft 404 can be driven to rotate. The rotating shaft 404 is eccentrically provided with a first roller group 405 and a first gear 406. When the two rotate, they drive the meshed second roller group 402 and the second gear 403 to rotate, and then the driving shaft 401 can be driven to move up and down in the sliding groove 502. Since the driving shaft 401 is fixedly connected to the lifting ring 205, the lifting ring 205 can be driven to move up and down. The maximum distance that the driving shaft 401 moves up and down in the sliding groove 502 is the sum of the longest radii of the first gear 406 and the second gear 403.

[0032] Three groups of light source control rods 206 are rotatably connected on the outer circumference of the lifting ring 205, and the light source control rods 206 include straight rods 206-1 and V-shaped rods 206-2. A rotation groove 204-2-1 is provided on the second limiting plate 204-2 along the radial direction, and a rotation seat 204-2-2 is provided in the rotation groove 204-2-1. The rotation seat 204-2-2 is rotatably connected to the V-shaped rod 206-2, and the connection position of the rotation seat 204-2-2 and the V-shaped rod 206-2 is the bifurcation position of the V-shaped rod 206-2. One of the free ends of the V-shaped rod 206-2 is rotatably connected to the straight rod 206-1, and a light source 206-3 is provided on the upper surface of the other free end. In order to limit the rising height of the lifting ring 205, a spring 207 is provided between the lifting ring 205 and the second limiting plate 204-2.

[0033] When the lifting ring 205 rises, the spring 207 is squeezed, the angle between the straight rod 206-1 and the V-shaped rod 206-2 becomes smaller, and the V-shaped rod 206-2 rotates as a whole. The free end provided with the light source 206-3 rotates to increase the height. The three light sources 206-3 illuminate the entire blood vessel model as much as possible under the refraction of the transparent plate 203 and the transparent cover, so as to facilitate observation by trainees at various angles.

[0034] The use process of the present invention is: 1. When the vascular model needs to be rotated, by rotating any rotating handle 302, the rotating gear 301 can be driven to rotate, and then the meshing action between the rotating gear 301 and the center gear 201 can drive the center gear 201 to rotate, and then drive the center axis 2 to rotate, and finally drive the vascular model to rotate, so that trainers at all angles can see all angles of the vascular model.

[0035] 2. When the angle of the light source 206-3 needs to be adjusted, the knob 701 is rotated to drive the rotating rod 7 located in the base 101 to rotate, thereby driving the conveyor belt 6 on the rotating rod 7 to rotate, thereby driving the rotating shaft 404 to rotate. The rotating shaft 404 is eccentrically provided with a first roller group 405 and a first gear 406. When the two rotate, they drive the meshed second roller group 402 and the second gear 403 to rotate, thereby driving the driving shaft 401 to move up and down in the sliding groove 502. Since the driving shaft 401 is fixedly connected to the lifting ring 205, the lifting ring 205 can be driven to move up and down. When the lifting ring 205 rises, the spring 207 is squeezed, the angle between the straight rod 206-1 and the V-shaped rod 206-2 becomes smaller, and the V-shaped rod 206-2 rotates as a whole, and the free end provided with the light source 206-3 rotates to increase the height. The three light sources 206-3 illuminate the entire blood vessel model as much as possible under the refraction of the transparent plate 203 and the transparent cover, which is convenient for the trainers to observe at all angles.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A demonstration device of a peripheral vascular model based on 3D printing, comprising a fixing seat (1), characterized in that: Also includes: The central axis (2) is arranged in the fixing seat (1), a blood vessel model is arranged on the top of the central axis, and an adjustable light source (206-3) is arranged below the blood vessel model; The light source adjustment mechanism is arranged outside the central axis (2) and is capable of adjusting the position of the light source (206-3).

2. A demonstration device of a peripheral vascular model based on 3D printing according to claim 1, characterized in that: A connecting tube (204) is sleeved on the central shaft (2), a limiting disk 1 (204-1) and a limiting disk 2 (204-2) are fixedly arranged on the connecting tube (204), and a lifting ring (205) is arranged between the limiting disk 1 (204-1) and the limiting disk 2 (204-2).

3. A demonstration device of a peripheral vascular model based on 3D printing according to claim 2, characterized in that: A plurality of groups of light source control rods (206) are arranged on the lifting ring (205), and the second limiting plate (204-2) is rotatably connected to the lifting ring (205) via the light source control rods (206).

4. The demonstration device of a peripheral vascular model based on 3D printing according to claim 3, characterized in that: The light source control rod (206) comprises a rotatably connected straight rod (206-1) and a V-shaped rod (206-2); the straight rod (206-1) is rotatably connected to the lifting ring (205); the V-shaped rod (206-2) is rotatably connected to a rotation groove (204-2-1) provided on the second limiting plate (204-2); and the light source (206-3) is arranged on the V-shaped rod (206-2).

5. The demonstration device of the peripheral vascular model based on 3D printing according to claim 4, characterized in that: The light source adjustment mechanism comprises a driving shaft (401) arranged on both sides of the lifting ring (205); a second roller group (402) and a second gear (403) are arranged on the driving shaft (401); the second roller group (402) and the second gear (403) are meshed with a first roller group (405) and a first gear (406); the first roller group (405) and the first gear (406) are arranged on a rotating shaft (404).

6. The demonstration device of the peripheral vascular model based on 3D printing according to claim 5, characterized in that: Limiting plates (501) are respectively arranged on both sides of the driving shaft (401) and the rotating shaft (404); a sliding groove (502) and a rotating groove (503) are provided on the limiting plate (501); the driving shaft (401) slides up and down in the sliding groove (502); and the rotating shaft (404) is arranged in the rotating groove (503).

7. The demonstration device of the peripheral vascular model based on 3D printing according to claim 6, characterized in that: A rotating rod (7) is arranged inside the fixed seat (1), and a conveyor belt (6) is arranged between the rotating rod (7) and the rotating shaft (404).

8. The demonstration device of a peripheral vascular model based on 3D printing according to claim 7, characterized in that: The central shaft (2) is provided with a central gear (201), and the central gear (201) is meshed with a rotating gear (301). When the rotating gear (301) rotates, it can drive the blood vessel model at the top of the central shaft (2) to rotate.

9. A method for using a demonstration device based on a 3D printed peripheral vascular model, characterized in that: Using a demonstration device based on a 3D printed peripheral vascular model as described in any one of claims 1 to 8, the specific steps are as follows: S1. When the blood vessel model needs to be rotated, the rotating gear (301) is rotated, thereby driving the central gear (201) to rotate through the meshing action between the rotating gear (301) and the central gear (201), thereby driving the central shaft (2) to rotate, and finally driving the blood vessel model to rotate; S2. When the angle of the light source (206-3) needs to be adjusted, the rotating rod (7) is rotated, thereby driving the conveyor belt (6) on the rotating rod (7) to rotate, thereby driving the rotating shaft (404) to rotate. The rotating shaft (404) is eccentrically provided with a first roller group (405) and a first gear (406). When the first roller group (405) and the second gear (406) are rotated, the meshing second roller group (402) and the second gear (403) are driven to rotate, thereby driving the driving shaft (401) to move up and down in the sliding groove (502). Since the driving shaft (401) is fixedly connected to the lifting ring (205), the lifting ring (205) can be driven to move up and down. When the lifting ring (205) rises, the angle between the straight rod (206-1) and the V-shaped rod (206-2) becomes smaller, and the V-shaped rod (206-2) rotates as a whole. The free end provided with the light source (206-3) rotates to increase the height, thereby realizing the adjustment of the light source (206-3).

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