A nursing puncture teaching training device

Abstract

This invention relates to the field of nursing training technology, and in particular to a nursing puncture teaching and training device, comprising a simulated arm and an upper arm simulated puncture assembly. The upper arm simulated puncture assembly includes a simulated intravenous injection device and a simulated constrictor. An arm state switching component is provided at the shoulder position of the simulated arm. When an intravenous puncture test is required at the elbow position, the position and orientation of the simulated arm are adjusted by the arm state switching component. A rubber band is then tightened at the upper arm of the simulated arm at the position of the simulated constrictor. At this time, the rubber band squeezes the simulated constrictor, causing the liquid inside the simulated constrictor to enter the simulated intravenous injection device. The simulated intravenous injection device simulates the congestion and bulging of blood vessels at the elbow. Intravenous puncture training can then be performed. The simulated constrictor and simulated intravenous injection device simulate blood return and the restoration of normal infusion during intravenous puncture training, completely simulating the entire process of intravenous infusion simulation.

Description

Technical Field

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

[0002] In practice, most existing training devices rely on various sensors to analyze the puncture needle and determine whether the training is successful. However, in reality, when training an IV infusion in the arm, the arm above the infusion site needs to be tightened with a rubber band to make the blood vessel at the puncture site bulge before the IV can be accurately penetrated. Existing training devices cannot simulate the bulging of the blood vessel at the infusion site by tightening the rubber band, and therefore cannot simulate the blood return and restoration of normal flow when the IV puncture is successful, resulting in an incomplete simulation.

[0003] Based on this, the present invention designs a nursing puncture teaching and training device to solve the above problems. Summary of the Invention

[0004] In view of the problem that the simulated arm cannot simulate vascular congestion and recovery during infusion puncture training in the above or existing technologies, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a nursing puncture teaching and training device.

[0006] As a preferred embodiment of the nursing puncture teaching and training device of the present invention, it includes: a simulated arm; The upper arm simulated puncture assembly is disposed on the simulated arm, and the upper arm simulated puncture assembly includes a simulated vein injection device disposed at the elbow of the simulated arm; The simulated intravenous injection device includes a second simulated skin disposed at the elbow of the simulated arm, a second mounting chamber disposed below the second simulated skin, a floating simulated blood vessel disposed inside the second mounting chamber, a T-shaped piston disposed inside the floating simulated blood vessel, and a fixing plate disposed at the end of the T-shaped piston. The end of the fixing plate is disposed on the inner wall of the second installation compartment.

[0007] As a preferred embodiment of the nursing puncture teaching and training device of the present invention, the upper arm simulated puncture component further includes a simulated hoop, and the simulated hoop is provided on the upper arm position of the simulated arm.

[0008] As a preferred embodiment of the nursing puncture teaching and training device of the present invention, the simulated hoop includes a first mounting groove, the simulated arm has a first mounting groove at the upper arm position, the first mounting groove has a first mounting chamber inside, the first mounting chamber has a rubber water-retaining bladder inside, the upper end of the rubber water-retaining bladder has a detection pressure plate, the lower end of the rubber water-retaining bladder has a water pipe, the upper part of the detection pressure plate has a first simulated skin, and the lower end of the first simulated skin is located inside the first mounting groove.

[0009] As a preferred embodiment of the nursing puncture teaching and training device of the present invention, the simulated intravenous injection device further includes a second mounting groove, the simulated arm has a second mounting groove at the upper arm position, the second mounting groove has a second mounting chamber inside, the end of the floating simulated blood vessel is provided with a limiting slider, the inner walls of the second mounting chambers on both sides of the floating simulated blood vessel are provided with clearance grooves, the limiting slider is disposed in the clearance groove, and a T-shaped water pipe is provided on the floating simulated blood vessel above the T-shaped piston.

[0010] In a preferred embodiment of the nursing puncture teaching and training device of the present invention, the end of the T-shaped water tube is disposed on the end of the water tube.

[0011] As a preferred embodiment of the nursing puncture teaching and training device of the present invention, an arm state switching component is provided on the shoulder position of the simulated arm.

[0012] As a preferred embodiment of the nursing puncture teaching and training device of the present invention, the arm state switching component includes a fixing member, the fixing member is provided at the shoulder position of the simulated arm, and the fixing member is provided with a connecting member inside.

[0013] As a preferred embodiment of the nursing puncture teaching and training device of the present invention, the fixing component includes a simulated arm, a simulated arm is provided at the shoulder position of the simulated arm, a base is provided at the end of the simulated arm, an installation groove is provided at the end of the base, a fixing slot is provided on the base outside the installation groove, a U-shaped plug is provided inside the fixing slot, a fixing plug is provided on the inner side of the U-shaped plug, a fixing hole is provided on the base inside the fixing plug, a connecting socket is provided at the end of the simulated arm, a flat groove is provided on the outer wall of the connecting socket, and the inner wall of the U-shaped plug is provided in the flat groove.

[0014] As a preferred embodiment of the nursing puncture teaching and training device of the present invention, the connecting member includes an arc-shaped rotating groove, the inner wall of the simulated arm is provided with an arc-shaped rotating groove, the end of the arc-shaped rotating groove is provided with a retaining ring, the end of the upper arm of the simulated arm is provided with a connecting rotating shaft, the outer wall of the connecting rotating shaft is provided with a rotating ring, the end of the connecting rotating shaft is provided with a limiting rotating block, the simulated arm on the side of the connecting rotating shaft away from the elbow of the simulated arm is provided with a movable groove, the movable groove is provided with a limiting block, the limiting rotating block is provided inside the movable groove, and the rotating ring is provided inside the arc-shaped rotating groove.

[0015] As a preferred embodiment of the nursing puncture teaching and training device of the present invention, the simulated arm is provided with a lower arm simulated puncture component at the wrist and back of the hand.

[0016] The beneficial effects of the nursing puncture teaching and training device of the present invention are as follows: When it is necessary to perform an infusion puncture test at the elbow position, the position and orientation of the simulated arm are adjusted by the arm state switching component. The rubber band is tightened at the upper arm of the simulated arm at the position of the simulated hoop. At this time, the rubber band squeezes the simulated hoop, causing the liquid inside the simulated hoop to enter the simulated vein injection device. The simulated vein injection device simulates the congestion and bulging of the blood vessels at the elbow. At this time, infusion puncture training can be carried out. The simulated hoop and the simulated vein injection device realize the simulation of blood return and restoration of normal infusion during infusion puncture training, and completely simulate the entire process of infusion simulation. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the overall structure of a nursing puncture teaching and training device according to the present invention.

[0019] Figure 2 This is an exploded view of a nursing puncture teaching and training device according to the present invention.

[0020] Figure 3 This is a schematic diagram of the limiting rotating block structure of a nursing puncture teaching and training device according to the present invention.

[0021] Figure 4 This is a schematic diagram of the arc-shaped rotating groove structure of a nursing puncture teaching and training device according to the present invention.

[0022] Figure 5 This is a schematic diagram of the limiting block structure of a nursing puncture teaching and training device according to the present invention.

[0023] Figure 6 This is a schematic diagram of the flat groove structure of a nursing puncture teaching and training device according to the present invention.

[0024] Figure 7 This is a schematic diagram of the pressing and positioning groove structure of a nursing puncture teaching and training device according to the present invention.

[0025] Figure 8 This is a schematic diagram of the structure of a rubber water-retaining bladder in a nursing puncture teaching and training device of the present invention.

[0026] Figure 9 This is a schematic diagram of a floating simulated blood vessel structure for a nursing puncture teaching and training device according to the present invention.

[0027] Figure 10 This is a schematic diagram of the T-shaped piston structure of a nursing puncture teaching and training device according to the present invention.

[0028] The labels in the diagram represent: 1. Simulated arm; 2. Upper arm simulated puncture component; 21. Simulated stirrup component; 211. First mounting slot; 212. First simulated skin; 213. First mounting chamber; 214. Rubber water reservoir; 215. Detection pressure plate; 216. Water pipe; 217. Pressing clearance groove; 22. Simulated intravenous injection component; 221. Second mounting slot; 222. Second simulated skin; 223. Second mounting chamber; 224. Clearance groove; 225. Floating simulated blood vessel; 226. Limiting slider; 227. T-shaped piston; 22 8. Fixing plate; 229. T-shaped water pipe; 3. Arm state switching component; 31. Fixing piece; 311. Base; 312. Simulated arm; 313. Fixing slot; 314. U-shaped insert; 315. Fixing insert; 316. Fixing socket; 317. Connecting socket; 318. Flat groove; 319. Mounting groove; 32. Connecting piece; 321. Arc-shaped rotating groove; 322. Snap ring; 323. Connecting shaft; 324. Rotating ring; 325. Limiting rotating block; 326. Movable groove; 327. Limiting block; 4. Lower arm simulated puncture component. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] 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.

[0032] Example 1, referring to Figures 1 to 10 This is the first embodiment of the present invention. This embodiment provides a nursing puncture teaching and training device that can simulate the bulging of blood vessels when training the arm to administer intravenous infusion. It includes a simulated arm 1. Specifically, the upper arm simulated puncture component 2 is set on the simulated arm 1, and the upper arm simulated puncture component 2 includes a simulated vein injection device 22 set at the elbow of the simulated arm 1; Furthermore, the upper arm simulated puncture component 2 is connected to the upper arm and elbow of the simulated arm 1; The upper arm simulated puncture assembly 2 includes a simulated vein injection device 22, which is connected to the elbow position of the simulated arm 1. Specifically, the simulated intravenous injection device 22 includes a second simulated skin 222 disposed at the elbow of the simulated arm 1, a second mounting chamber 223 disposed below the second simulated skin 222, a floating simulated blood vessel 225 disposed inside the second mounting chamber 223, a T-shaped piston 227 disposed inside the floating simulated blood vessel 225, and a fixing plate 228 disposed at the end of the T-shaped piston 227. Furthermore, the simulated intravenous injection device 22 includes a second simulated skin 222. The second simulated skin 222 is snapped into the inside of the elbow position of the simulated arm 1. A second installation chamber 223 is sleeved inside the lower part of the second simulated skin 222. Inside the second installation chamber 223, there are two sets of floating simulated blood vessels 225. The lower inner end of each floating simulated blood vessel 225 is slidably connected to a T-shaped piston 227. The lower end of each T-shaped piston 227 passes through the bottom plate of the floating simulated blood vessel 225 and is fixedly connected to a fixing plate 228. The end of the fixing plate 228 is fixedly connected to the inner wall of the second installation chamber 223. The end of the fixing plate 228 is disposed on the inner wall of the second mounting chamber 223; Specifically, the upper arm simulated puncture component 2 also includes a simulated stirrup component 21, which is provided on the upper arm position of the simulated arm 1; The upper arm simulated puncture component 2 also includes a simulated stirrup component 21, which is connected to the upper arm position of the simulated arm 1; Specifically, the simulated stirrup component 21 includes a first mounting groove 211. The first mounting groove 211 is provided at the upper arm position of the simulated arm 1. The first mounting groove 211 is provided with a first mounting chamber 213. The first mounting chamber 213 is provided with a rubber water storage bladder 214. The upper end of the rubber water storage bladder 214 is provided with a detection pressure plate 215. The lower end of the rubber water storage bladder 214 is provided with a water pipe 216. The detection pressure plate 215 is provided with a first simulated skin 212. The lower end of the first simulated skin 212 is located inside the first mounting groove 211. Furthermore, the simulated stirrup component 21 includes a first mounting groove 211. The first mounting groove 211 is provided at the upper arm position of the simulated arm 1. A first mounting chamber 213 is snapped into the inside of the first mounting groove 211. A rubber water storage bladder 214 is fixedly connected inside the first mounting chamber 213. A detection pressure plate 215 is fixedly connected to the upper end of the rubber water storage bladder 214. The detection pressure plate 215 is slidably connected inside the first mounting chamber 213. A pressing relief groove 217 is provided at the upper end of the first mounting chamber 213. The height of the top of the detection pressure plate 215 is higher than the pressing relief groove 217. Specifically, the simulated intravenous injection device 22 also includes a second mounting groove 221. The second mounting groove 221 is provided on the upper arm of the simulated arm 1. The second mounting groove 221 is provided with a second mounting chamber 223. The end of the floating simulated blood vessel 225 is provided with a limiting slider 226. The inner walls of the second mounting chambers 223 on both sides of the floating simulated blood vessel 225 are provided with clearance grooves 224. The limiting slider 226 is provided in the clearance grooves 224. A T-shaped water pipe 229 is provided on the floating simulated blood vessel 225 above the T-shaped piston 227. The end of the T-shaped water pipe 229 is located at the end of the water pipe 216; Furthermore, the simulated intravenous injection device 22 also includes a first mounting groove 211. The first mounting groove 211 is provided on the upper arm of the simulated arm 1. A second mounting chamber 223 is snapped into the inside of the first mounting groove 211. Limiting sliders 226 are fixedly connected to both ends of the floating simulated blood vessel 225. A clearance groove 224 is provided on the inner wall of the second mounting chamber 223 on the side where the limiting sliders 226 are far apart from each other. The limiting sliders 226 are slidably connected to the inside of the clearance groove 224. A T-shaped water pipe 229 is fixedly connected between the two sets of floating simulated blood vessels 225 above the T-shaped piston 227. The T-shaped water pipe 229 is connected to the inside of the floating simulated blood vessel 225 above the T-shaped piston 227. The end of the T-shaped water pipe 229 is fixedly connected to the end of the water pipe 216 and they are connected in a continuous manner. During use, when intravenous infusion training is required at the elbow position of simulated arm 1, a rubber strip is tightened at the upper arm position of simulated arm 1 where the first simulated skin 212 is located. At this time, the rubber strip presses the first simulated skin 212 inwards towards the upper arm of simulated arm 1. The first simulated skin 212, under the pressure of the release groove 217, presses the detection pressure plate 215 into the first mounting chamber 213. The detection pressure plate 215 then presses downwards into the rubber water-retaining bladder 214 within the first mounting chamber 213, flattening the rubber water-retaining bladder 214. Liquid inside the rubber water reservoir 214 enters the T-shaped water pipe 229 through the water pipe 216, and then enters the floating simulated blood vessel 225 through the T-shaped water pipe 229. After entering the floating simulated blood vessel 225, the liquid compresses the T-shaped piston 227. Since the T-shaped piston 227 is fixed to the second mounting chamber 223 by the fixing plate 228, the liquid inside the floating simulated blood vessel 225 pushes upwards, compressing the floating simulated blood vessel 225. As the floating simulated blood vessel 225 moves upwards, it compresses the second simulated skin 222, thereby... The deformation of the second simulated skin 222 causes a bulge, thus simulating the bulging of blood vessels at the elbow after tightening the upper arm. Furthermore, due to the increased water pressure within the floating simulated blood vessel 225, when the trainee inserts a needle through it, the fluid within the vessel enters the infusion tubing, allowing for immediate observation of successful puncture. Upon successful puncture, the rubber strip at the upper arm is released, and the rubber reservoir 214 expands under its restoring force. The expansion causes the detection pressure plate 215 to move upward, and at this time, the rubber water reservoir 214 draws the liquid inside the floating simulated blood vessel 225 through the water pipe 216 and the T-shaped water pipe 229. At this time, the floating simulated blood vessel 225 draws the liquid in the infusion tube through the needle, thereby realizing the simulation of blood return in the infusion room and the restoration of normal infusion. At this time, due to the decrease of water pressure in the floating simulated blood vessel 225, it moves downward under the action of the second simulated skin 222, thereby completing the simulation of the bulging of blood vessels at the wrist of the simulated arm 1 and the flattening.

[0033] Example 2: Upper arm simulated puncture assembly 2, see simulated arm 1 to... Figure 7 This is the second embodiment of the present invention, which differs from the previous embodiment in that it includes an arm state switching component 3; Specifically, an arm state switching component 3 is set at the shoulder position of simulated arm 1; The arm state switching component 3 includes a fixing member 31. The fixing member 31 is provided at the shoulder position of the simulated arm 1, and a connector 32 is provided inside the fixing member 31. An arm state switching component 3 is connected to the shoulder position of simulated arm 1; The arm state switching component 3 includes a fixing member 31, which is connected to the shoulder position of the simulated arm 1, and a connecting member 32 is connected inside the fixing member 31. Specifically, the fastener 31 includes a simulated arm 312, which is provided at the shoulder position of the simulated arm 1. A base 311 is provided at the end of the simulated arm 312. An installation groove 319 is provided at the end of the base 311. A fixing slot 313 is provided on the base 311 outside the installation groove 319. A U-shaped plug 314 is provided inside the fixing slot 313. A fixing plug 315 is provided on the inner side of the U-shaped plug 314. A fixing hole 316 is provided on the base 311 inside the fixing plug 315. A connection socket 317 is provided at the end of the simulated arm 312. A planar groove 318 is provided on the outer wall of the connection socket 317. The inner wall of the U-shaped plug 314 is located in the planar groove 318. Furthermore, the fixing component 31 includes a simulated arm 312, which consists of two parts, front and rear, fixedly connected by bolts. A base 311 is connected to the lower end of the simulated arm 312. A mounting groove 319 is provided at the upper end of the base 311. A connecting socket 317 is fixedly connected to the lower end of the simulated arm 312. The connecting socket 317 passes through the mounting groove 319 and is rotatably connected to it. Two sets of parallel fixing slots 313 are provided inside the base 311 outside the mounting groove 319. U-shaped inserts 314 are inserted into the fixing slots 313, with the two horizontal bars of the U-shaped inserts 314 inserted into the interior of the fixing slots 313. The sidewalls of the two horizontal columns of the U-shaped plug 314 that are close to each other are parallel planes. A fixed plug 315 is fixedly connected to the inner side of the vertical column of the U-shaped plug 314. A fixed insertion hole 316 is opened on the base 311 of the fixed plug 315 away from the U-shaped plug 314. The fixed plug 315 is inserted into the fixed insertion hole 316. Several sets of flat grooves 318 are opened on the outer wall of the middle part of the connecting socket 317. The two sets of flat grooves 318 at the upper end of the connecting socket 317 that are far apart are parallel to each other and the distance between them is equal to the distance between the two horizontal columns of the U-shaped plug 314 that are close to each other. The two horizontal columns of the U-shaped plug 314 are inserted into the two sets of parallel flat grooves 318. Specifically, the connector 32 includes an arc-shaped groove 321. The inner wall of the simulated arm 312 is provided with an arc-shaped groove 321. A retaining ring 322 is provided at the end of the arc-shaped groove 321. A connecting shaft 323 is provided at the end of the upper arm of the simulated arm 1. A rotating ring 324 is provided on the outer wall of the connecting shaft 323. A limiting block 325 is provided at the end of the connecting shaft 323. A movable groove 326 is provided on the simulated arm 312 on the side of the connecting shaft 323 away from the elbow of the simulated arm 1. A limiting block 327 is provided inside the movable groove 326. The limiting block 325 is provided inside the movable groove 326. The rotating ring 324 is provided inside the arc-shaped groove 321. Furthermore, the connector 32 includes an arc-shaped groove 321. The inner wall of the simulated arm 312 has an arc-shaped groove 321. A retaining ring 322 is fixedly connected to the inner wall of the simulated arm 312 at the end of the arc-shaped groove 321. A connecting shaft 323 is fixedly connected to one end of the upper arm of the simulated arm 1 near the simulated arm 312. The connecting shaft 323 is rotatably connected inside the simulated arm 312. A rotating ring 324 is fixedly connected to the outer wall of the connecting shaft 323. The retaining ring 322 is engaged with the side wall of the rotating ring 324. The rotating ring 324 is rotatably connected to the inside of the arc-shaped rotating groove 321. The end of the connecting shaft 323 away from the upper arm of the simulated arm 1 is fixedly connected to the limiting rotating block 325. The vertical plate inside the simulated arm 312 on the side of the connecting shaft 323 away from the upper arm of the simulated arm 1 has an active groove 326. The active groove 326 is fixedly connected to the inside of the active groove 326. The limiting rotating block 325 is slidably connected to the inside of the active groove 326. Specifically, the wrist and back of the hand of the simulated arm 1 are equipped with a lower arm simulated puncture component 4; Furthermore, a lower arm simulated puncture component 4 is connected to the wrist and back of the hand of the simulated arm 1; The structure of the wrist part of the lower arm simulated puncture component 4 is the same as that of the simulated intravenous injection component 22, and the structure of the back of the hand part of the lower arm simulated puncture component 4 is the same as that of the simulated stirrup component 21. In use, lift the simulated arm 1. The simulated arm 1, through the simulated arm 312, drives the connecting socket 317 to insert into the mounting slot 319. Then, rotate the simulated arm 1 to the desired position. The simulated arm 1 drives the simulated arm 312 and the connecting socket 317 to rotate. The connecting socket 317 drives the flat groove 318 to rotate. At this time, pass the two horizontal plates of the U-shaped plug 314 through the fixing slot 313. The inner side of the U-shaped plug 314 is now engaged in the two sets of parallel flat grooves 318 corresponding to the connecting socket 317, thus completing the fixing of the connecting socket 317. At this time, the fixing plug 315 is inserted into the fixing hole 3. The inner wall of 16 is used to fix the U-shaped insert 314. When the simulated arm 1 needs to be rotated to the required state, the simulated arm 1 drives the connecting shaft 323 to rotate. The connecting shaft 323 drives the rotating ring 324 to rotate inside the arc-shaped rotating groove 321 under the limit of the retaining ring 322. At this time, the connecting shaft 323 drives the limiting rotating block 325 to rotate inside the movable groove 326. At this time, under the limit of the limiting block 327, the limiting rotating block 325 can only rotate a certain range, so as to simulate the rotation range when the arm rotates, and avoid the problem of the simulated arm 1 rotating beyond the range and being different from the real arm, resulting in incomplete simulated puncture training.

[0034] 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 nursing puncture teaching and training device, characterized in that: Including a simulated arm (1); and, An upper arm simulated puncture assembly (2) is disposed on the simulated arm (1), the upper arm simulated puncture assembly (2) including a simulated intravenous injection device (22) disposed at the elbow of the simulated arm (1); wherein, The simulated intravenous injection device (22) includes a second simulated skin (222) disposed at the elbow of the simulated arm (1), a second mounting chamber (223) disposed below the second simulated skin (222), a floating simulated blood vessel (225) disposed inside the second mounting chamber (223), a T-shaped piston (227) disposed inside the floating simulated blood vessel (225), and a fixing plate (228) disposed at the end of the T-shaped piston (227); wherein, The end of the fixing plate (228) is disposed on the inner wall of the second installation chamber (223); The upper arm simulated puncture assembly (2) also includes a simulated stirrup (21), which includes a rubber water reservoir (214). The upper end of the rubber water reservoir (214) is provided with a detection pressure plate (215), and the lower end of the rubber water reservoir (214) is provided with a water pipe (216).

2. The nursing puncture teaching and training device according to claim 1, characterized in that: The simulated arm (1) has a simulated stirrup (21) at the upper arm position.

3. The nursing puncture teaching and training device according to claim 2, characterized in that: The simulated stirrup component (21) includes a first mounting groove (211). The simulated arm (1) has a first mounting groove (211) on its upper arm. The first mounting groove (211) has a first mounting chamber (213) inside. The first mounting chamber (213) has a rubber water storage bladder (214) inside. The detection pressure plate (215) has a first simulated skin (212) above it. The lower end of the first simulated skin (212) is located inside the first mounting groove (211).

4. The nursing puncture teaching and training device according to claim 3, characterized in that: The simulated intravenous injection device (22) also includes a second mounting groove (221). The simulated arm (1) has a second mounting groove (221) at the upper arm position. The second mounting groove (221) has a second mounting chamber (223) inside. The end of the floating simulated blood vessel (225) is provided with a limiting slider (226). The inner walls of the second mounting chambers (223) on both sides of the floating simulated blood vessel (225) are provided with clearance grooves (224). The limiting slider (226) is located in the clearance groove (224). A T-shaped water pipe (229) is provided on the floating simulated blood vessel (225) above the T-shaped piston (227).

5. The nursing puncture teaching and training device according to claim 4, characterized in that: The end of the T-shaped water pipe (229) is located at the end of the water pipe (216).

6. The nursing puncture teaching and training device according to claim 5, characterized in that: An arm state switching component (3) is provided at the shoulder position of the simulated arm (1).

7. The nursing puncture teaching and training device according to claim 6, characterized in that: The arm state switching component (3) includes a fixing member (31), and the fixing member (31) is provided on the shoulder position of the simulated arm (1). A connector (32) is provided inside the fixing member (31).

8. The nursing puncture teaching and training device according to claim 7, characterized in that: The fixing component (31) includes a simulated arm (312), which is provided at the shoulder position of the simulated arm (1). The end of the simulated arm (312) is provided with a base (311), and the end of the base (311) is provided with a mounting groove (319). A fixing slot (313) is provided on the base (311) outside the mounting groove (319). A U-shaped plug (314) is provided inside the fixing slot (313). A fixing plug (315) is provided on the inner side of the U-shaped plug (314). A fixing hole (316) is provided on the base (311) inside the fixing plug (315). A connecting socket (317) is provided at the end of the simulated arm (312). A planar groove (318) is provided on the outer wall of the connecting socket (317). The inner wall of the U-shaped plug (314) is located in the planar groove (318).

9. The nursing puncture teaching and training device according to claim 8, characterized in that: The connector (32) includes an arc-shaped groove (321). The inner wall of the simulated arm (312) is provided with an arc-shaped groove (321). The end of the arc-shaped groove (321) is provided with a retaining ring (322). The end of the upper arm of the simulated arm (1) is provided with a connecting shaft (323). The outer wall of the connecting shaft (323) is provided with a rotating ring (324). The end of the connecting shaft (323) is provided with a limiting rotating block (325). The simulated arm (312) on the side of the connecting shaft (323) away from the elbow of the simulated arm (1) is provided with a movable groove (326). The movable groove (326) is provided with a limiting block (327) inside. The limiting rotating block (325) is located inside the movable groove (326). The rotating ring (324) is located inside the arc-shaped groove (321).

10. The nursing puncture teaching and training device according to claim 9, characterized in that: The simulated arm (1) is provided with a lower arm simulated puncture component (4) at the wrist and back of the hand.

Images