Puncture training device for clinical teaching

Abstract

The present application relates to the technical field of puncture training, and particularly relates to a puncture training device for clinical teaching, which comprises a training assembly, a sitting posture half-body model and a lying posture half-body model arranged outside a support seat, a transposition assembly, a first pressing shaft, a first support disc arranged inside the sitting posture half-body model and the lying posture half-body model, and a plurality of groups of inner storage discs arranged in a ring shape on the inner wall of the first support disc, and an adjusting assembly. The pressing force of the model pressed manually before puncture is transmitted to the first pressing shaft and the second pressing shaft, the first pressing shaft is rotated to make the first support disc rotate, so that the position of the inner storage disc is changed, the personnel is facilitated to perform suction during training, and the position of the movable block is changed through the second pressing shaft, so that the puncture depth requirement of adults or children is matched in puncture operation at different positions.

Description

Technical Field

[0001] This invention relates to the field of puncture training technology, and in particular to a puncture training device for clinical teaching. Background Technology

[0002] Clinical puncture is a common clinical procedure that involves inserting a specialized needle or catheter through the skin or tissue into a body cavity or blood vessel to aspirate fluid, collect specimens, inject medications, or perform diagnostic and therapeutic procedures. Examples include thoracentesis, paracentesis, lumbar puncture, and central venous catheterization. This technique offers significant advantages such as minimal invasiveness, high targeting accuracy, high diagnostic value, and direct therapeutic effects, making it one of the essential skills that clinicians must master.

[0003] In real clinical settings, due to the inherent risks and irreversibility of puncture procedures, demonstrating and practicing on patients directly by beginners is not in accordance with medical ethics and cannot adequately guarantee patient safety. Therefore, in clinical medical education, it is necessary to use teaching demonstration tools to show medical students and junior physicians the standardized operating procedures, key steps, and precautions of puncture techniques. Currently, common teaching demonstration methods include theoretical explanations and simulation exercises based on simple static models. Teaching training devices simulate the feel of puncture, provide anatomical references, and evaluate the operation process to better meet the teaching and training needs of clinical puncture skills.

[0004] Lumbar puncture and bone marrow aspiration are procedures that require inserting a puncture needle to extract cerebrospinal fluid or bone marrow fluid. Existing training demonstration models mostly use built-in multi-dimensional sensor arrays to collect parameters such as operation position and force in real time, and at the same time build a high-precision anatomical model to realize a virtual scene to complete the training demonstration operation. However, they lack the feedback effect of being able to perform aspiration when the puncture reaches a certain position. Summary of the Invention

[0005] In view of the problems existing in the above or prior art, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a puncture training device for clinical teaching.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A puncture training device for clinical teaching includes a training component comprising a support base and a seated half-body model and a supine half-body model disposed outside the support base. And, the displacement component includes a first pressing shaft, a first support plate disposed inside the seated half-body model and the lying half-body model, and multiple sets of inner storage plates arranged in a ring on the inner wall of the first support plate; And, the adjustment component includes a second pressing shaft, a movable block disposed outside the second pressing shaft, and a second limiting groove formed inside the seated half-body model and the recumbent half-body model; The manual pressing force applied to the model before puncture is transmitted to the first and second pressing shafts. The first pressing shaft rotates, causing the first support plate to rotate, thereby changing the position of the inner storage plate to facilitate aspiration operations during training. At the same time, the second pressing shaft changes the position of the movable block, thus matching the puncture depth requirements of adults or children in puncture operations at different locations.

[0008] As a preferred embodiment of the puncture training device for clinical teaching of the present invention, the training component further includes a tray integrally formed on the end face of the support seat, the seated half-body model is installed on the upper end face of the tray, and the end faces of the seated half-body model and the supine half-body model are provided with a surface layer.

[0009] As a preferred embodiment of the puncture training device for clinical teaching of the present invention, the displacement component further includes a guide block fixedly connected to the outer wall of the first pressing shaft and a first guide shaft movably connected to the inner side of the guide block. The first pressing shaft is provided with a sleeve inside, and the outer wall of the sleeve is provided with three sets of first guide grooves and second guide grooves.

[0010] As a preferred embodiment of the puncture training device for clinical teaching of the present invention, the three sets of first guide grooves and second guide grooves are symmetrical to each other and the first guide grooves and second guide grooves on adjacent sides are connected. The first guide shaft can slide along the first guide groove and the second guide groove. The inner wall of the first pressing shaft is provided with a first spring, and the end of the first spring is provided on the upper end face of the sleeve.

[0011] As a preferred embodiment of the puncture training device for clinical teaching of the present invention, the outer wall of the sleeve is fixedly connected to a central shaft, an external shaft is provided at the center of the outer wall of the inner reservoir, and a first limiting groove is provided on the outer wall of the external shaft, the first limiting groove being slidably connected along the central shaft.

[0012] As a preferred embodiment of the puncture training device for clinical teaching of the present invention, the outer wall of the central shaft is provided with a movable disc, the lower end face of the movable disc is provided with a second spring, the end of the second spring is fixedly installed on the inner wall of the seated half-body model and the supine half-body model, the end face of the movable disc is fixedly connected with a second guide shaft, and the bottom wall of the first support disc is provided with an embedded groove.

[0013] As a preferred embodiment of the puncture training device for clinical teaching of the present invention, the inner walls of the sitting half-body model and the lying half-body model are provided with a third guide groove and a fourth guide groove, the third guide groove and the fourth guide groove are connected, the fourth guide groove is a symmetrical design with one rising and one falling, and its stroke accounts for one-third of the inner wall of the sitting half-body model and the lying half-body model.

[0014] As a preferred embodiment of the puncture training device for clinical teaching of the present invention, the adjustment component further includes a fixed plate disposed inside the seated half-body model and the supine half-body model, the second pressing shaft is slidably connected to the outside of the fixed plate, the inner wall of the movable block is provided with a moving block, and the end face of the moving block is designed to be inclined.

[0015] As a preferred embodiment of the puncture training device for clinical teaching of the present invention, wherein: a guide plate is integrally formed at the center of the movable block, an inclined groove is provided inside the movable block, the movable block can slide along the inclined groove, and a third spring is fixedly installed on the bottom wall of the second pressing shaft, the third spring being fixedly connected to the inner wall of the movable block.

[0016] As a preferred embodiment of the puncture training device for clinical teaching of the present invention, the movable block is provided with a second support plate and a third guide shaft on both sides of its outer wall, the second support plate can slide along the inner groove, and the third guide shaft can be embedded in the second limiting groove.

[0017] The beneficial effects of the puncture training device for clinical teaching of the present invention are as follows: The present invention transmits the pressure applied by manually pressing the model before puncture to the first pressing shaft and the second pressing shaft. When the first pressing shaft is rotated, the first support plate is rotated, thereby changing the position of the inner reservoir plate, which facilitates aspiration during training. At the same time, the position of the movable block is changed by the second pressing shaft, thereby matching the puncture depth requirements of adults or children in puncture operations at different positions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of a puncture training device for clinical teaching.

[0020] Figure 2 This is a schematic diagram of a seated half-body model of a puncture training device for clinical teaching.

[0021] Figure 3 This is a partial structural diagram of a puncture training device for clinical teaching.

[0022] Figure 4 This is a schematic diagram of the internal structure of a seated half-body model of a puncture training device for clinical teaching.

[0023] Figure 5 This is a schematic diagram of the transposition component structure of a puncture training device for clinical teaching.

[0024] Figure 6 This is a schematic diagram of the disassembled structure of the transposition component of a puncture training device for clinical teaching.

[0025] Figure 7 This is a schematic diagram of the sleeve structure of a puncture training device for clinical teaching.

[0026] Figure 8 This is a schematic diagram of the support plate structure of a puncture training device for clinical teaching.

[0027] Figure 9 This is a schematic diagram of the adjustment component structure of a puncture training device for clinical teaching.

[0028] Figure 10 This is a schematic diagram of the internal structure of the movable block in a puncture training device for clinical teaching.

[0029] Figure 11 This is a schematic diagram of the internal structure of a seated half-body model of a puncture training device for clinical teaching.

[0030] In the diagram, 1. Training component; 11. Support base; 12. Tray; 13. Seated half-body model; 14. Reclining half-body model; 15. Surface layer; 2. Positioning component; 21. First pressing shaft; 22. First guide shaft; 23. Guide block; 24. Sleeve; 25. First guide groove; 26. Second guide groove; 27. First spring; 28. Central shaft; 29. ​​First support plate; 210. Inner storage plate; 211. First limiting groove; 2 12. External shaft; 213. Embedded groove; 214. Movable disc; 215. Second spring; 216. Second guide shaft; 217. Third guide groove; 218. Fourth guide groove; 3. Adjustment assembly; 31. Second pressing shaft; 32. Fixed plate; 33. Movable block; 34. Inclined groove; 35. Moving block; 36. Guide plate; 37. Third spring; 38. Second support disc; 39. Third guide shaft; 310. Second limiting groove. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example 1

[0034] Reference Figures 1 to 9 This is the first embodiment of the present invention. This embodiment provides a puncture training device for clinical teaching, which can rotate the inner reservoir 210 containing simulated body fluid to the puncture position during puncture preparation, thereby simulating the action of body fluid aspiration.

[0035] Specifically, a puncture training device for clinical teaching includes a training component 1, which includes a support base 11 and a seated half-body model 13 and a supine half-body model 14 fixedly installed on the outside of the support base 11. The seated half-body model 13 and the supine half-body model 14 are both made of a new type of polymer composite material and have a built-in multi-dimensional sensor array, which can collect parameters such as operation position, angle, and force in real time. By designing the seated posture and the seated posture model, it is convenient for personnel to conduct training and demonstrations in different scenarios.

[0036] The displacement assembly 2 includes a first pressing shaft 21, a first support plate 29 disposed inside the seated half-body model 13 and the lying half-body model 14, and multiple sets of inner storage plates 210 arranged in a ring on the inner wall of the first support plate 29. The first pressing shaft 21 is located inside the model and fits against the inner wall of the model. The inner storage plates 210 are designed in two sets and are arranged in a ring on the inner side of the first support plate 29. Liquid is stored in the inner storage plates 210 to simulate body fluid simulation at different locations, so as to facilitate the operator to perform aspiration operations simultaneously during training.

[0037] And, the adjustment component 3 includes a second pressing shaft 31, a movable block 33 disposed outside the second pressing shaft 31, and a second limiting groove 310 opened inside the seated half-body model 13 and the lying half-body model 14; wherein, the second pressing shaft 31 is the same as the first pressing shaft 21 and is designed in the inner layer of the model, the movable block 33 is hollow, and the second limiting groove 310 is equidistantly designed in the vertical direction, which can be designed according to different parts. For example, in lumbar puncture, the puncture depth of the puncture needle is different for adults and children. The puncture depth of adults is 4-6cm, and the puncture depth of children is 2-4cm. Therefore, the number and spacing of the second limiting groove 310 can be adjusted according to the puncture site.

[0038] The manual pressing force applied to the model before puncture is transmitted to the first pressing shaft 21 and the second pressing shaft 31. When the first pressing shaft 21 rotates, the first support plate 29 rotates, thereby changing the position of the inner storage plate 210, which facilitates the aspiration operation during training. At the same time, the position of the movable block 33 is changed by the second pressing shaft 31, so as to match the puncture depth requirements of adults or children in puncture operations at different positions.

[0039] Furthermore, the training component 1 also includes a tray 12 integrally formed on the end face of the support base 11. A seated half-body model 13 is fixedly installed on the upper end face of the tray 12. The end faces of the seated half-body model 13 and the recumbent half-body model 14 are provided with a surface layer 15. The surface layer 15 has a certain space for the displacement component 2 and the adjustment component 3 to be pushed out. Since during the puncture operation, the person first needs to press the skin with their thumb and forefinger before performing the puncture operation, thereby ensuring the puncture effect.

[0040] It should be noted that the switching component 2 also includes a guide block 23 fixedly connected to the outer wall of the first pressing shaft 21 and a first guide shaft 22 movably connected to the inner side of the guide block 23. A sleeve 24 is rotatably connected inside the first pressing shaft 21, and the outer wall of the sleeve 24 is provided with three sets of first guide grooves 25 and second guide grooves 26. The model has a channel inside for the guide block 23 to slide, thereby achieving a limiting and guiding effect. Furthermore, the first guide shaft 22 is designed to be movable and can be connected to the guide block 23 by a spring, thereby matching the slope of the first guide grooves 25 and second guide grooves 26. The half-body model needs to have a guide structure inside. When the surface layer 15 is in contact with the model surface, i.e., in the initial state, the sleeve 24 is located at the bottom of the guide structure, thereby ensuring that the sleeve 24 rotates in a fixed position.

[0041] Preferably, the three sets of first guide grooves 25 and second guide grooves 26 are symmetrical to each other, and the first guide grooves 25 and second guide grooves 26 on adjacent sides are connected. The first guide shaft 22 can slide along the first guide grooves 25 and second guide grooves 26. A first spring 27 is fixedly installed on the inner wall of the first pressing shaft 21, and the end of the first spring 27 is fixedly connected to the upper end face of the sleeve 24. Among them, there are three sets of first guide grooves 25, and they are vertical grooves. The second guide grooves 26 are inclined arc grooves, so that the upper and lower ends of each set of first guide grooves 25 are connected to two sets of second guide grooves 26 respectively, and the connection between two sets of adjacent guide grooves has a certain step.

[0042] A central shaft 28 is fixedly connected to the outer wall of the sleeve 24, and an external shaft 212 is fixedly connected to the center of the outer wall of the inner storage tray 210. The outer wall of the external shaft 212 is provided with a first limiting groove 211, which can slide along the central shaft 28. The surface of the central shaft 28 is provided with evenly distributed protrusions. By connecting the central shaft 28 and the external shaft 212, the external shaft 212 can be rotated synchronously when the central shaft 28 rotates, while ensuring that the external shaft 212 can slide up and down along the surface of the central shaft 28.

[0043] In use, when a puncture operation is required, taking lumbar puncture as an example, during training demonstrations, the trainee first presses the seated half-body model 13 or the supine half-body model 14 with their thumb and forefinger, then inserts the puncture needle into the pressing area. When the trainee presses on the model surface, the model is pressed, causing the first pressing shaft 21 to descend. As the first pressing shaft 21 slides down, the first spring 27 contracts, the guide block 23 slides along the model, and the first guide shaft 22 moves along the second guide groove 26. Thus, the sleeve 24 rotates through the contact between the first guide shaft 22 and the second guide groove 26. When the sleeve 24 rotates, it drives the central shaft 28 to rotate synchronously. The central shaft 28 passes through the first limiting groove 211 and drives the outer shaft 212 to rotate synchronously, thereby driving the first support plate 29 and the inner storage plate 210. Synchronous rotation: Since the second guide groove 26 is distributed on one-third of the surface of the sleeve 24, when the first guide shaft 22 slides along the second guide groove 26 once, the first support plate 29 rotates 120°. At this time, the inner storage plate 210 is moved, and the undrawn inner storage plate 210 is rotated to the position between the first pressing shaft 21 and the second pressing shaft 31. Then, the puncture needle is inserted into the model to achieve the puncture effect. When the pressure on the pressing shaft is released, the first pressing shaft 21 is reset by the elastic force of the first spring 27. At this time, the first guide shaft 22 slides along the first guide groove 25 and will not trigger the rotation of the first support plate 29. At this time, the simulated liquid in the inner storage plate 210 in the middle position has been completely drawn out. The inner storage plate 210 is moved when the first pressing shaft 21 is pressed down again.

[0044] In summary, the pressure applied to the model body during the puncture preparation process is converted into the power of the displacement component 2, causing the first pressing shaft 21 to press down and the sleeve 24 to rotate once, thereby realizing the displacement of the inner storage plate 210. This allows personnel to simultaneously simulate the action of fluid aspiration during the puncture operation, making the training demonstration operation more realistic. At the same time, the use of puncture fluid aspiration can ensure that personnel can intuitively understand whether the puncture position is accurate. Example 2

[0045] Reference Figures 5-8 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a method in which the switching component 2 and the adjusting component 3 can be pushed out after being rotated a certain number of times, so that personnel can replenish the simulated liquid.

[0046] Specifically, a movable disc 214 is fixedly connected to the outer wall of the central shaft 28. A second spring 215 is fixedly installed on the lower end face of the movable disc 214. The end of the second spring 215 is fixedly installed on the inner wall of the seated half-body model 13 and the reclining half-body model 14. A second guide shaft 216 is fixedly connected to the end face of the movable disc 214. An embedded groove 213 is provided on the bottom wall of the first support disc 29. The bottom of the embedded groove 213 has a certain limiting effect, ensuring that the second support disc 38 can be embedded in the embedded groove 213. Furthermore, the upper and lower sides of the embedded groove 213 both limit the second support disc 38, thereby allowing the second support disc 38 to rise and fall synchronously with the first support disc 29.

[0047] Furthermore, the inner walls of the seated half-body model 13 and the reclining half-body model 14 are provided with a third guide groove 217 and a fourth guide groove 218, which are connected. The fourth guide groove 218 has a symmetrical design with one rising and one falling, and its stroke occupies one-third of the inner wall of the seated half-body model 13 and the reclining half-body model 14. Among them, the third guide groove 217 has a circular design and is connected to the fourth guide groove 218. Both the third guide groove 217 and the fourth guide groove 218 are designed inside the model. The vertical stroke of the fourth guide groove 218 can push out the inner storage plate 210, which is convenient for personnel to replenish the simulated fluid.

[0048] The rest of the structure is the same as in Example 1.

[0049] In use, when the first pressing shaft 21 is pressed down, the central shaft 28 rotates, thereby driving the movable disk 214 to rotate synchronously. Since the movable disk 214 is movable due to the elastic support of multiple second springs 215 at the bottom, when the movable disk 214 rotates, it drives the second guide shaft 216 to rotate synchronously, causing the second guide shaft 216 to slide along the third guide groove 217 and the fourth guide groove 218. Since the movable disk 214 rotates 120° for each press of the first pressing shaft 21, the second guide shaft 216 slides along the third guide groove 217 during the first two presses of the first pressing shaft 21. When the first pressing shaft 21 is pressed down for the third time, the second guide shaft 216 slides along the fourth guide groove 218. Since the fourth guide groove 218 is in a lifting position, the second guide shaft 216 rises through the fourth guide groove 218 during the third press, driving the switching component 2 and the surface layer 15 to rise as a whole, thus facilitating the replenishment of the simulated liquid by personnel.

[0050] In summary, when the first pressing shaft 21 is pressed down, the rotation of the movable disc 214 causes the second guide shaft 216 to slide within the third guide groove 217 and the fourth guide groove 218. By designing the number of the first guide groove 25 and the second guide groove 26, as well as the stroke design of the third guide groove 217 and the fourth guide groove 218, the first pressing shaft 21 can achieve the repositioning of the inner storage disc 210 during the first two presses, and trigger the overall rise of the repositioning assembly 2 during the third press, thereby facilitating the replenishment of the simulated liquid by personnel. Example 3

[0051] Reference Figure 9 , Figure 10 and Figure 11 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a structure that adjusts the height of the inner reservoir 210 when pressing on the human body model, thereby matching the insertion depth requirements of adults or children.

[0052] Specifically, the adjustment component 3 also includes a fixed plate 32 disposed inside the seated half-body model 13 and the reclining half-body model 14. The second pressing shaft 31 is slidably connected to the outside of the fixed plate 32. The inner wall of the movable block 33 is movably designed with a moving block 35, the end face of which is inclined. The fixed plate 32 guides the second pressing shaft 31, and the moving block 35 slides along the second pressing shaft 31.

[0053] Furthermore, a guide plate 36 is integrally formed at the center of the movable block 35, and an inclined groove 34 is provided inside the movable block 33, allowing the movable block 35 to slide along the inclined groove 34. A third spring 37 is fixedly installed on the bottom wall of the second pressing shaft 31, and the third spring 37 is fixedly connected to the inner wall of the movable block 33. The width of the guide plate 36 is slightly smaller than that of the movable block 35, thereby providing a limiting effect and preventing it from detaching from the second pressing shaft 31.

[0054] Preferably, a second support plate 38 and a third guide shaft 39 are fixedly connected to both sides of the outer wall of the movable block 33. The second support plate 38 can slide along the inner groove 213, and the third guide shaft 39 can be embedded in the second limiting groove 310. The second support plate 38 is embedded in the inner groove 213, and the third guide shaft 39 is spherical. In the initial state, the third guide shaft 39 is located in the bottommost second limiting groove 310.

[0055] The rest of the structure is the same as in Example 2.

[0056] During use, the second pressing shaft 31 is pressed simultaneously during puncture preparation. The second pressing shaft 31 passes through the fixed plate 32 and presses down inside the movable block 33. The pressing of the second pressing shaft 31 compresses the third spring 37, and the guide plate 36 slides along the second pressing shaft 31. At the same time, the moving block 35 follows the second pressing shaft 31 and descends. The contact between the moving block 35 and the inclined groove 34 drives the movable block 33 to rise. When the movable block 33 rises, it rises synchronously with the third guide shaft 39 through the second support plate 38. Since in the initial state, the third guide... The shaft 39 is located at the bottom of the second limiting groove 310. As the movable block 33 rises, the third guide shaft 39 rises along the second limiting groove 310. The second support plate 38 drives the first support plate 29 to rise synchronously. The operator can determine whether the first support plate 29 has reached the predetermined position by sensing the change in the position of the third guide shaft 39 in the second limiting groove 310, thereby moving the inner storage plate 210 to the depth that an adult or child should reach, so that the puncture needle can be inserted into the inner storage plate 210 to achieve the aspiration effect during the puncture process.

[0057] In summary, during the pressing process, the downward pressing action of the second pressing shaft 31 and the first pressing shaft 21 achieves different effects. Thus, the position of the first support plate 29 and the inner storage plate 210 is adjusted by the downward pressing of the second pressing shaft 31 to match the puncture depth requirements of adults and children at different puncture positions. Furthermore, the suction at different depths ensures that the personnel know whether the puncture depth requirement has been met, thereby improving the immersive realism of the puncture operation and the quality of training demonstrations.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A puncture training device for clinical teaching, characterized in that: include, Training component (1) includes a support base (11), a seated half-body model (13) and a recumbent half-body model (14) disposed outside the support base (11); and, The displacement assembly (2) includes a first pressing shaft (21), a first support plate (29) disposed inside the seated half-body model (13) and the recumbent half-body model (14), and multiple sets of inner storage plates (210) arranged in a ring on the inner wall of the first support plate (29); and, The adjustment component (3) includes a second pressing shaft (31), a movable block (33) disposed outside the second pressing shaft (31), and a second limiting groove (310) opened inside the seated half-body model (13) and the lying half-body model (14). in, The pressure applied by manually pressing the model before puncture is transmitted to the first pressing shaft (21) and the second pressing shaft (31). When the first pressing shaft (21) is rotated, the first support plate (29) is rotated, thereby changing the position of the inner storage plate (210) to facilitate the aspiration operation during training. At the same time, the position of the movable block (33) is changed by the second pressing shaft (31) to match the puncture depth requirements of adults or children in puncture operations at different positions.

2. The puncture training device for clinical teaching as described in claim 1, characterized in that: The training component (1) also includes a tray (12) integrally formed on the end face of the support base (11), the seated half-body model (13) is installed on the upper end face of the tray (12), and the end faces of the seated half-body model (13) and the lying half-body model (14) are provided with a surface layer (15).

3. The puncture training device for clinical teaching as described in claim 2, characterized in that: The shifting component (2) also includes a guide block (23) fixedly connected to the outer wall of the first pressing shaft (21) and a first guide shaft (22) movably connected to the inner side of the guide block (23). The first pressing shaft (21) is provided with a sleeve (24), and the outer wall of the sleeve (24) is provided with three sets of first guide grooves (25) and second guide grooves (26).

4. The puncture training device for clinical teaching as described in claim 3, characterized in that: The three sets of first guide grooves (25) and second guide grooves (26) are symmetrical to each other and the first guide grooves (25) and second guide grooves (26) on adjacent sides are connected. The first guide shaft (22) can slide along the first guide groove (25) and the second guide groove (26). The inner wall of the first pressing shaft (21) is provided with a first spring (27), and the end of the first spring (27) is provided on the upper end face of the sleeve (24).

5. The puncture training device for clinical teaching as described in claim 4, characterized in that: The outer wall of the sleeve (24) is fixedly connected to a central shaft (28), and an external shaft (212) is provided at the center of the outer wall of the inner storage plate (210). The outer wall of the external shaft (212) is provided with a first limiting groove (211), which can slide along the central shaft (28).

6. The puncture training device for clinical teaching as described in claim 5, characterized in that: The outer wall of the central shaft (28) is provided with a movable disc (214), and the lower end face of the movable disc (214) is provided with a second spring (215). The end of the second spring (215) is fixedly installed on the inner wall of the seated half-body model (13) and the lying half-body model (14). The end face of the movable disc (214) is fixedly connected with a second guide shaft (216). The bottom wall of the first support disc (29) is provided with an embedded groove (213).

7. The puncture training device for clinical teaching as described in claim 6, characterized in that: The inner walls of the seated half-body model (13) and the lying half-body model (14) are provided with a third guide groove (217) and a fourth guide groove (218). The third guide groove (217) and the fourth guide groove (218) are connected. The fourth guide groove (218) is a symmetrical design with one rising and one falling, and its stroke accounts for one-third of the inner wall of the seated half-body model (13) and the lying half-body model (14).

8. The puncture training device for clinical teaching as described in claim 7, characterized in that: The adjustment component (3) also includes a fixed plate (32) disposed inside the seated half-body model (13) and the lying half-body model (14), the second pressing shaft (31) is slidably connected to the outside of the fixed plate (32), and the inner wall of the movable block (33) is provided with a moving block (35), the end face of the moving block (35) is inclined.

9. The puncture training device for clinical teaching as described in claim 8, characterized in that: The center of the movable block (35) is integrally formed with a guide plate (36), and the interior of the movable block (33) is provided with a sloping groove (34). The movable block (35) can slide along the sloping groove (34). A third spring (37) is fixedly installed on the bottom wall of the second pressing shaft (31), and the third spring (37) is fixedly connected to the inner wall of the movable block (33).

10. The puncture training device for clinical teaching as described in claim 9, characterized in that: The outer walls of the movable block (33) are respectively provided with a second support plate (38) and a third guide shaft (39). The second support plate (38) can slide along the inner groove (213), and the third guide shaft (39) can be embedded in the second limiting groove (310).

Images