A puncture training device for intravenous anesthesia

Abstract

The present invention provides a puncture training device for intravenous anesthesia, which relates to the technical field of puncture training and comprises: a movable support unit, a position replacement unit, a multifunctional unit and an extrusion leak-proof unit; the position replacement unit is provided with two groups, and the two groups of position replacement units are installed on the top of the movable support unit; the multifunctional unit is installed on the top of the movable support unit; the extrusion leak-proof unit is installed on the top of the movable support unit, and the extrusion leak-proof unit is located outside the puncture training hose; the position replacement roller is provided with two groups, and the two position replacement rollers are fixedly installed on the outside of two circular installation shafts, and the two position replacement rollers are in close contact with the puncture training hose; the present invention saves the time of staff in replacing the puncture training hose, and increases the number of puncture training times in the same time; it solves the problem that the hose simulating the blood vessel generally needs to be frequently replaced during puncture training, thereby reducing the number of puncture training times.

Description

Technical Field

[0001] The present invention belongs to the technical field of puncture training, and more specifically, relates to a puncture training device for intravenous anesthesia. Background Art

[0002] Venipuncture is a key way to administer anesthesia. Precise puncture techniques can ensure that anesthetic drugs enter the blood circulation quickly and safely, directly affecting the anesthesia effect and patient safety. Puncture training is a basic skill for anesthesiologists to ensure patient safety and improve medical quality.

[0003] The puncture training devices currently in use still have the following problems: 1. During puncture training, the hose simulating the blood vessel generally needs to be replaced frequently, which reduces the number of puncture training sessions; 2. The hose simulating the blood vessel cannot be fully inflated during use and does not conform to the shape of the vein, which reduces the puncture training effect; 3. Although some puncture training devices are equipped with an inflation structure, they cannot automatically press the two ends of the hose before inflation, which makes the air after inflation easily leak. Summary of the Invention

[0004] The disclosed embodiment relates to a puncture training device for intravenous anesthesia, which comprises a movable support unit, a position changing unit, a multifunctional unit and an extrusion leak-proof unit; the time of staff in replacing the puncture training hose is saved, and the number of puncture training sessions is increased within the same time; the puncture training hose is ensured to be more in line with the shape of the vein when in use, thereby improving the puncture training effect; the U-shaped pressing frame and the supporting frame can automatically press the left end position of the puncture training hose, and the two circular pressing rollers can automatically press the right end position of the puncture training hose, thereby preventing the filled air from leaking through the right end of the puncture training hose; the problem that the hose simulating the blood vessel generally needs to be replaced frequently, the hose simulating the blood vessel cannot be guaranteed to be fully inflated when in use, and the air in the hose is prone to leakage is solved.

[0005] The present invention provides a puncture training device for intravenous anesthesia, comprising: a movable support unit, a position replacement unit, a multifunctional unit and an extrusion leak-proof unit; the position replacement units are provided in two groups, and the two groups of position replacement units are installed on the top of the movable support unit, and the two groups of position replacement units are provided with puncture training hoses, and the two groups of position replacement units are used to move the puncture training hoses; the multifunctional unit is installed on the top of the movable support unit, and the multifunctional unit is located outside the puncture training hose, and the multifunctional unit is used to inflate the puncture training hose, and the multifunctional unit is also used to press the puncture training hose; the extrusion leak-proof unit is installed on the top of the movable support unit, and the extrusion leak-proof unit is located outside the puncture training hose, and the extrusion leak-proof unit is used to press the puncture training hose.

[0006] In at least some embodiments, the movable support unit includes: a fixed base plate, a circular guide rod and a movable flat plate; two mounting circular holes are provided on the fixed base plate; there are two circular guide rods in total, and the two circular guide rods are fixedly installed on the right side of the fixed base plate; the movable flat plate is slidably installed on the outside of the two circular guide rods.

[0007] In at least some embodiments, the movable support unit further includes: a solid support ball, an electric telescopic rod A and a support frame; there are four solid support balls in total, and the four solid support balls are rotatably mounted on the movable plate, and the bottoms of the four solid support balls are flush with the bottom of the fixed base plate; there are two electric telescopic rods A in total, and the two electric telescopic rods A are fixedly mounted on the fixed base plate, and the output shafts of the two electric telescopic rods A are fixedly connected to the movable plate; the support frame is fixedly mounted on the top of the fixed base plate by screws.

[0008] In at least some embodiments, the position changing unit includes: a U-shaped mounting seat, a circular mounting shaft and a position changing roller; the U-shaped mounting seat is fixedly mounted on a fixed base plate or a movable plate by screws; there are two circular mounting shafts, and the two circular mounting shafts are rotatably mounted on the U-shaped mounting seat; there are two position changing rollers, and the two position changing rollers are fixedly mounted on the outside of the two circular mounting shafts, and the two position changing rollers are in close contact with the puncture training hose.

[0009] In at least some embodiments, the position replacement unit also includes: a connecting gear and a servo motor; there are two connecting gears, and the two connecting gears are fixedly mounted on the rear ends of the two circular mounting shafts, and the two connecting gears are meshed and connected; the servo motor is fixedly mounted on the front side of the U-shaped mounting seat by screws, and the output shaft of the servo motor is fixedly connected to the circular mounting shaft below.

[0010] In at least some embodiments, the multifunctional unit includes: a U-shaped frame, a movable mounting plate and an electric telescopic rod B; the U-shaped frame is fixedly mounted on the top of a fixed base plate by screws; the movable mounting plate is slidably mounted on the U-shaped frame; the electric telescopic rod B is fixedly mounted on the U-shaped frame, and the output shaft of the electric telescopic rod B is fixedly connected to the movable mounting plate.

[0011] In at least some embodiments, the multifunctional unit further includes: a U-shaped pressing frame and an inflation needle; the U-shaped pressing frame is fixedly mounted on the bottom of the movable mounting plate; and the inflation needle is fixedly mounted on the movable mounting plate.

[0012] In at least some embodiments, the multifunctional unit further includes: an inflation pipe and a pushing and extruding frame; the inflation pipe is fixedly mounted on the inflation needle, and the inflation pipe is connected to an external air pump; there are two pushing and extruding frames, and the two pushing and extruding frames are fixedly mounted on the fixed base plate and the U-shaped frame by screws.

[0013] In at least some embodiments, the extrusion leak-proof unit includes: a mounting strip and a circular mounting rod A; there are two mounting strips, and the two mounting strips are fixedly mounted on the top of the movable plate by screws; the circular mounting rod A is rotatably mounted on the two mounting strips.

[0014] In at least some embodiments, the squeezing and leak-proof unit further includes: a circular mounting rod B and a circular pressing roller; the circular mounting rod B is slidably mounted on two mounting strips, and the circular mounting rod B is also in contact with two pushing and squeezing frames; there are two circular pressing rollers in total, and the two circular pressing rollers are fixedly mounted on the outside of the circular mounting rod A and the circular mounting rod B, and the two circular pressing rollers are in contact with the puncture training hose.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, when the output shaft of the servo motor rotates, the lower position-changing roller rotates; the upper position-changing roller can rotate in the opposite direction following the lower position-changing roller, thereby realizing the automatic movement of the puncture training hose, saving the time of the staff in replacing the puncture training hose, and increasing the number of puncture training times in the same time.

[0017] 2. When the output shaft of the electric telescopic rod B is fully extended and the air pump on the inflation pipe is working, the puncture training hose can be automatically inflated to make the puncture training hose bulge, ensuring that the puncture training hose better conforms to the shape of the vein when in use, thereby improving the puncture training effect; when the output shaft of the electric telescopic rod B is fully extended, the U-shaped pressing frame and the support frame can automatically press the left end of the puncture training hose to prevent the injected air from leaking through the left end of the puncture training hose; at the same time, the setting of the support frame supports the puncture training hose, so that the inflation needle can be inserted to the correct position.

[0018] 3. The arrangement of the four solid support balls of the present invention supports the movable plate, making it more stable when moving. When the output shafts of the two electric telescopic rods A are retracted a certain distance, the movable plate moves to the left, causing the puncture training hose between the two sets of position change units to bend slightly, which is conducive to the filling of air and ensures that the puncture training hose can be fully inflated after the air is filled through the inflation needle.

[0019] In addition, when the output shafts of the two electric telescopic rods A are extended and reset, the movable plate moves to the right, so that the puncture training hose between the two sets of position replacement units is automatically tightened, which is conducive to the automatic discharge of air in the puncture training hose through the puncture hole, making it easier for the two sets of position replacement units to move the puncture training hose;

[0020] In addition, when the output shaft of the electric telescopic rod A contracts a certain distance, the two pushing and squeezing frames can push the circular mounting rod B downward; when the two pushing and squeezing frames can push the circular mounting rod B downward, the two circular pressing rollers can automatically press the right end position of the puncture training hose, thereby preventing the filled air from leaking through the right end of the puncture training hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0022] The drawings described below only relate to some embodiments of the present invention, rather than limiting the present invention.

[0023] In the attached figure:

[0024] Figure 1 Shows a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 Shows a schematic structural diagram of the movable support unit of the present invention;

[0026] Figure 3 The present invention is shown Figure 1 Schematic diagram of the central cross-section structure;

[0027] Figure 4 The present invention is shown Figure 3 Schematic diagram of the local enlarged structure of area A in the middle;

[0028] Figure 5 Shows a schematic structural diagram of a position replacement unit of the present invention;

[0029] Figure 6 shows a schematic structural diagram of the multifunctional unit of the present invention;

[0030] Figure 7 The present invention is shown Figure 6 Schematic diagram of the bottom perspective structure;

[0031] Figure 8 A schematic structural diagram of the extrusion leak-proof unit of the present invention is shown;

[0032] Figure 9 The present invention is shown Figure 1 Schematic diagram of the bottom perspective structure;

[0033] Figure 10 The present invention is shown Figure 9 Schematic diagram of the locally enlarged structure of area B in the middle.

[0034] List of reference numerals:

[0035] 100, movable support unit; 101, fixed base plate; 1011, mounting circular hole; 102, circular guide rod; 103, movable plate; 104, solid support ball; 105, electric telescopic rod A; 106, support frame;

[0036] 200, position change unit; 201, U-shaped mounting seat; 202, circular mounting shaft; 203, position change roller; 204, connecting gear; 205, servo motor;

[0037] 300, puncture training hose;

[0038] 400, multifunctional unit; 401, U-shaped frame; 402, movable mounting plate; 403, electric telescopic rod B; 404, U-shaped pressing frame; 405, inflation needle; 406, inflation pipe; 407, pushing and squeezing frame;

[0039] 500, extrusion leak prevention unit; 501, mounting strip; 502, circular mounting rod A; 503, circular mounting rod B; 504, circular pressing roller. DETAILED DESCRIPTION

[0040] In order to make the purpose, scheme and advantages of the technical solution of the present invention more clear, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the common meanings in the art. The same reference numerals in the drawings represent the same components.

[0041] Example: Please refer to Figures 1 to 10As shown: The present invention provides a puncture training device for intravenous anesthesia, comprising: a movable support unit 100, a position replacement unit 200, a multifunctional unit 400 and a squeezing and leak-proofing unit 500; two groups of position replacement units 200 are provided, and the two groups of position replacement units 200 are installed on the top of the movable support unit 100, and the two groups of position replacement units 200 are provided with puncture training hoses 300, and the two groups of position replacement units 200 are used to move the puncture training hoses 300; the multifunctional unit 400 is installed on the top of the movable support unit 100, and the multifunctional unit 400 is located outside the puncture training hose 300, and the multifunctional unit 400 is used to inflate the puncture training hose 300, and the multifunctional unit 400 is also used to press the puncture training hose 300; the squeezing and leak-proofing unit 500 is installed on the top of the movable support unit 100, and the squeezing and leak-proofing unit 500 is located outside the puncture training hose 300, and the squeezing and leak-proofing unit 500 is used to press the puncture training hose 300.

[0042] In the embodiment of the present disclosure, Figure 5 As shown, the position changing unit 200 includes: a U-shaped mounting seat 201, a circular mounting shaft 202 and a position changing roller 203; the U-shaped mounting seat 201 is fixedly mounted on the fixed base plate 101 or the movable plate 103 by screws; there are two circular mounting shafts 202, and the two circular mounting shafts 202 are rotatably mounted on the U-shaped mounting seat 201; there are two position changing rollers 203, and the two position changing rollers 203 are fixedly mounted on the outside of the two circular mounting shafts 202, and the two position changing rollers 203 are in close contact with the puncture training hose 300; the position changing unit 200 also includes: a connecting gear 204 and a servo motor 205; there are two connecting gears 204, and the two connecting gears 204 are fixedly mounted on the rear ends of the two circular mounting shafts 202, and the two connecting gears 204 are meshed and connected; the servo motor 205 is fixedly mounted on the front side of the U-shaped mounting seat 201 by screws, and the output shaft of the servo motor 205 is fixedly connected to the circular mounting shaft 202 below;

[0043] Its specific function is as follows: because the two position-changing rollers 203 are fixedly mounted on the outside of the two circular mounting shafts 202, and the two position-changing rollers 203 are in close contact with the puncture training hose 300, and the output shaft of the servo motor 205 is fixedly connected to the circular mounting shaft 202 below, when the output shaft of the servo motor 205 rotates, the position-changing roller 203 below rotates; and because the two connecting gears 204 are fixedly mounted on the rear ends of the two circular mounting shafts 202, and the two connecting gears 204 are meshed and connected, the upper position-changing roller 203 can rotate in the opposite direction following the lower position-changing roller 203, thereby realizing the automatic movement of the puncture training hose 300, saving the time of the staff in replacing the puncture training hose 300, and increasing the number of puncture training times in the same time.

[0044] In the embodiment of the present disclosure, Figure 6 and Figure 7 As shown, the multifunctional unit 400 includes: a U-shaped frame 401, a movable mounting plate 402 and an electric telescopic rod B403; the U-shaped frame 401 is fixedly mounted on the top of the fixed base plate 101 by screws; the movable mounting plate 402 is slidably mounted on the U-shaped frame 401; the electric telescopic rod B403 is fixedly mounted on the U-shaped frame 401, and the output shaft of the electric telescopic rod B403 is fixedly connected to the movable mounting plate 402; the multifunctional unit 400 also includes: a U-shaped pressing frame 404 and an inflation needle 4 05; U-shaped pressing frame 404 is fixedly mounted on the bottom of the movable mounting plate 402; the inflation needle 405 is fixedly mounted on the movable mounting plate 402; the multifunctional unit 400 further includes: an inflation pipe 406 and a pushing and extruding frame 407; the inflation pipe 406 is fixedly mounted on the inflation needle 405, and the inflation pipe 406 is connected to an external air pump; there are two pushing and extruding frames 407, and the two pushing and extruding frames 407 are fixedly mounted on the fixed base plate 101 and the U-shaped frame 401 by screws;

[0045] Its specific function is as follows: because the output shaft of the electric telescopic rod B403 is fixedly connected to the movable mounting plate 402, and the inflation needle 405 is fixedly mounted on the movable mounting plate 402, and the inflation pipe 406 is fixedly mounted on the inflation needle 405, when the output shaft of the electric telescopic rod B403 is fully extended and the air pump on the inflation pipe 406 is working, it can automatically inflate the puncture training hose 300, causing the puncture training hose 300 to swell, ensuring that the puncture training hose 300 is more in line with the shape of the vein when in use, thereby improving the puncture training effect. ; Because the U-shaped pressing frame 404 is fixedly mounted on the bottom of the movable mounting plate 402, and the supporting frame 106 is located below the U-shaped pressing frame 404, when the output shaft of the electric telescopic rod B403 is fully extended, the U-shaped pressing frame 404 and the supporting frame 106 can automatically press the left end position of the puncture training hose 300, thereby preventing the injected air from leaking through the left end of the puncture training hose 300; at the same time, the setting of the supporting frame 106 plays a supporting role for the puncture training hose 300, so that the inflation needle 405 can be inserted to the correct position.

[0046] In the embodiment of the present disclosure, Figure 2 、 Figure 4 、 Figure 8 and Figure 10As shown, the movable support unit 100 includes: a fixed base plate 101, a circular guide rod 102 and a movable plate 103; two mounting circular holes 1011 are provided on the fixed base plate 101; there are two circular guide rods 102, and the two circular guide rods 102 are fixedly mounted on the right side of the fixed base plate 101; the movable plate 103 is slidably mounted on the outside of the two circular guide rods 102; the movable support unit 100 also includes: a solid support ball 104, an electric telescopic rod A105 and a support frame 106; there are four solid support balls 104, and the four solid support balls 104 are rotatably mounted on the movable plate 103, and the bottoms of the four solid support balls 104 are flush with the bottom of the fixed base plate 101; there are two electric telescopic rods A105, and the two electric telescopic rods A105 are fixedly mounted on the fixed base plate 101, and the output shafts of the two electric telescopic rods A105 are fixedly connected to the movable plate 103; the support frame 106 is fixedly mounted on the top of the fixed base plate 101 by screws;

[0047] The squeezing and leak-proofing unit 500 includes: a mounting strip 501 and a circular mounting rod A502; there are two mounting strips 501, and the two mounting strips 501 are fixedly mounted on the top of the movable plate 103 by screws; the circular mounting rod A502 is rotatably mounted on the two mounting strips 501; the squeezing and leak-proofing unit 500 also includes: a circular mounting rod B503 and a circular pressing roller 504; the circular mounting rod B503 is slidably mounted on the two mounting strips 501, and the circular mounting rod B503 is also in contact with the two pushing and squeezing frames 407; there are two circular pressing rollers 504, and the two circular pressing rollers 504 are fixedly mounted on the outside of the circular mounting rods A502 and the circular mounting rods B503, and the two circular pressing rollers 504 are in contact with the puncture training hose 300;

[0048] Its specific function is as follows: because the four solid support balls 104 are rotatably mounted on the movable plate 103, and the bottoms of the four solid support balls 104 are flush with the bottom of the fixed base plate 101, they support the movable plate 103, making the movable plate 103 more stable when moving; and because the movable plate 103 is slidably mounted on the outside of the two circular guide rods 102, and the two electric telescopic rods A105 are fixedly mounted on the fixed base plate 101, and the output shafts of the two electric telescopic rods A105 are fixedly connected to the movable plate 103, when the output shafts of the two electric telescopic rods A105 are retracted a certain distance The movable plate 103 moves to the left, causing the puncture training hose 300 between the two sets of position replacement units 200 to bend slightly, which is conducive to the filling of air and ensures that the puncture training hose 300 can be fully inflated after the air is filled through the inflation needle 405; when the output shafts of the two electric telescopic rods A105 are extended and reset, the movable plate 103 moves to the right, causing the puncture training hose 300 between the two sets of position replacement units 200 to be automatically tightened, which is conducive to the automatic discharge of air in the puncture training hose 300 through the puncture hole, making it easier for the two sets of position replacement units 200 to move the puncture training hose 300;

[0049] In addition, because the circular mounting rod B503 is slidably mounted on the two mounting strips 501, and the circular mounting rod B503 is also in contact with the two pushing and squeezing frames 407, when the output shaft of the electric telescopic rod A105 contracts a certain distance, the two pushing and squeezing frames 407 can push the circular mounting rod B503 to move downward; and because the two circular pressing rollers 504 are fixedly mounted on the outside of the circular mounting rod A502 and the circular mounting rod B503, and the two circular pressing rollers 504 are in contact with the puncture training hose 300, when the two pushing and squeezing frames 407 can push the circular mounting rod B503 to move downward, the two circular pressing rollers 504 can automatically press the right end position of the puncture training hose 300, thereby preventing the filled air from leaking through the right end of the puncture training hose 300.

[0050] The specific usage and function of this embodiment are as follows:

[0051] When the present invention is used, the staff first installs the fixed base plate 101 in the appropriate position through the bolts and the two mounting circular holes 1011, and then connects the two electric telescopic rods A105, the two servo motors 205 and the electric telescopic rod B403 to the external control system, and then connects the air pump on the inflation pipe 406 to the external control system. Then the staff installs the puncture training hose 300 to be used between the two position replacement rollers 203 on the left and right sides; when performing puncture training, the output shafts of the two electric telescopic rods A105 are controlled to retract by the external control system. When the output shafts of the two electric telescopic rods A105 are retracted a certain distance, the movable plate 103 moves to the left, causing the puncture training hose 300 between the two sets of position replacement units 200 to be slightly bent, which is conducive to the filling of air and ensures that the puncture training hose 300 can be fully inflated after the air is filled through the inflation needle 405; when the output shaft of the electric telescopic rod A105 is retracted a certain distance, the two pushing and squeezing frames 407 can push the circular mounting rod B503 downward; when the two pushing and squeezing frames 4 When the circular mounting rod B503 is pushed downward, the two circular pressing rollers 504 can automatically press the right end of the puncture training hose 300, thereby preventing the air after filling from leaking through the right end of the puncture training hose 300; then the output shaft of the electric telescopic rod B403 is controlled to extend through the external control system. When the output shaft of the electric telescopic rod B403 is fully extended, the U-shaped pressing frame 404 and the supporting frame 106 can automatically press the left end of the puncture training hose 300, thereby preventing the air after filling from leaking through the right end of the puncture training hose 300. 00 leaks at the left end, and then the air pump is controlled by the external control system to automatically inflate the puncture training hose 300, so that the puncture training hose 300 swells, ensuring that the puncture training hose 300 better conforms to the shape of the vein when in use, thereby improving the puncture training effect; at the same time, the setting of the support frame 106 supports the puncture training hose 300, so that the inflation needle 405 can be inserted into the accurate position, and then the staff can perform puncture training through the puncture training hose 300 between the two sets of position replacement units 200;

[0052] When the puncture training hose 300 between the two sets of position changing units 200 needs to be replaced, the output shafts of the two electric telescopic rods A105 are controlled to reset through the external control system. At this time, the movable plate 103 moves to the right, so that the puncture training hose 300 between the two sets of position changing units 200 is automatically tightened, which is conducive to the automatic discharge of air in the puncture training hose 300 through the puncture holes, making it easier for the two sets of position changing units 200 to move the puncture training hose 300; then the two servo motors 205 are started through the external control system, and when the output shafts of the two servo motors 205 rotate, the two position changing rollers 203 below rotate; the arrangement of the four connecting gears 204 enables the two upper position changing rollers 203 to rotate in the opposite direction with the two lower position changing rollers 203, thereby realizing the automatic movement of the puncture training hose 300, saving the time of the staff in replacing the puncture training hose 300 and increasing the number of puncture training times in the same time.

[0053] In this article, there are several points to note:

[0054] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0055] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0056] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A puncture training device for intravenous anesthesia, comprising: A movable support unit (100), a position replacement unit (200), a multifunctional unit (400) and an extrusion leak-proof unit (500); characterized in that the position replacement unit (200) is provided with two groups, and the two groups of position replacement units (200) are installed on the top of the movable support unit (100), and the two groups of position replacement units (200) are provided with puncture training hoses (300), and the two groups of position replacement units (200) are used to move the puncture training hoses (300); the multifunctional unit (400) is installed on the movable support unit (100) and the position replacement unit (200) is installed on the top of the movable support unit (100). The multifunctional unit (400) is located on the top of the puncture training hose (300), and the multifunctional unit (400) is located outside the puncture training hose (300). The multifunctional unit (400) is used to inflate the puncture training hose (300). The multifunctional unit (400) is also used to press the puncture training hose (300). The squeezing and leak-proof unit (500) is installed on the top of the movable support unit (100), and the squeezing and leak-proof unit (500) is located outside the puncture training hose (300). The squeezing and leak-proof unit (500) is used to press the puncture training hose (300). The movable support unit (100) comprises: a fixed base plate (101) and an electric telescopic rod A (105); the multifunctional unit (400) comprises: a U-shaped frame (401) and a pushing and extruding frame (407); two pushing and extruding frames (407) are provided, and the two pushing and extruding frames (407) are fixedly mounted on the fixed base plate (101) and the U-shaped frame (401) by screws; The squeezing and leak-proof unit (500) comprises: a mounting strip (501), a circular mounting rod A (502), a circular mounting rod B (503) and a circular pressing roller (504); the circular mounting rod B (503) is slidably mounted on the two mounting strips (501), and the circular mounting rod B (503) is also in contact with two pushing and squeezing frames (407); there are two circular pressing rollers (504), and the two circular pressing rollers (504) are fixedly mounted on the outside of the circular mounting rod A (502) and the circular mounting rod B (503), and the two circular pressing rollers (504) are in contact with the puncture training hose (300); when the output shaft of the electric telescopic rod A (105) is retracted a certain distance, the two pushing and squeezing frames (407) can push the circular mounting rod B (503) to move downward.

2. The intravenous anesthesia puncture training device according to claim 1, characterized in that: The movable support unit (100) further comprises: a circular guide rod (102) and a movable flat plate (103); two mounting circular holes (1011) are provided on the fixed base plate (101); there are two circular guide rods (102) in total, and the two circular guide rods (102) are fixedly mounted on the right side of the fixed base plate (101); the movable flat plate (103) is slidably mounted on the outside of the two circular guide rods (102).

3. The intravenous anesthesia puncture training device according to claim 2, characterized in that: The movable support unit (100) further comprises: a solid support ball (104) and a support frame (106); there are four solid support balls (104) in total, and the four solid support balls (104) are rotatably mounted on the movable plate (103), and the bottoms of the four solid support balls (104) are flush with the bottom of the fixed base plate (101); there are two electric telescopic rods A (105) in total, and the two electric telescopic rods A (105) are fixedly mounted on the fixed base plate (101), and the output shafts of the two electric telescopic rods A (105) are fixedly connected to the movable plate (103); the support frame (106) is fixedly mounted on the top of the fixed base plate (101) by screws.

4. The intravenous anesthesia puncture training device according to claim 2, characterized in that: The position changing unit (200) comprises: a U-shaped mounting seat (201), a circular mounting shaft (202) and a position changing roller (203); the U-shaped mounting seat (201) is fixedly mounted on a fixed base plate (101) or a movable plate (103) by means of screws; there are two circular mounting shafts (202) in total, and the two circular mounting shafts (202) are rotatably mounted on the U-shaped mounting seat (201); there are two position changing rollers (203) in total, and the two position changing rollers (203) are fixedly mounted on the outside of the two circular mounting shafts (202), and the two position changing rollers (203) are in close contact with the puncture training hose (300).

5. The intravenous anesthesia puncture training device according to claim 4, characterized in that: The position replacement unit (200) further comprises: a connecting gear (204) and a servo motor (205); two connecting gears (204) are provided, and the two connecting gears (204) are fixedly mounted on the rear ends of the two circular mounting shafts (202), and the two connecting gears (204) are meshed and connected; the servo motor (205) is fixedly mounted on the front side of the U-shaped mounting seat (201) by screws, and the output shaft of the servo motor (205) is fixedly connected to the circular mounting shaft (202) below.

6. The intravenous anesthesia puncture training device according to claim 2, characterized in that: The multifunctional unit (400) further comprises: a movable mounting plate (402) and an electric telescopic rod B (403); the U-shaped frame (401) is fixedly mounted on the top of the fixed base plate (101) by screws; the movable mounting plate (402) is slidably mounted on the U-shaped frame (401); the electric telescopic rod B (403) is fixedly mounted on the U-shaped frame (401), and the output shaft of the electric telescopic rod B (403) is fixedly connected to the movable mounting plate (402).

7. The intravenous anesthesia puncture training device according to claim 6, characterized in that: The multifunctional unit (400) further comprises: a U-shaped pressing frame (404) and an inflation needle (405); the U-shaped pressing frame (404) is fixedly mounted on the bottom of the movable mounting plate (402); and the inflation needle (405) is fixedly mounted on the movable mounting plate (402).

8. The intravenous anesthesia puncture training device according to claim 7, characterized in that: The multifunctional unit (400) further comprises: an inflation pipe (406); the inflation pipe (406) is fixedly mounted on the inflation needle (405), and the inflation pipe (406) is connected to an external air pump.

9. The intravenous anesthesia puncture training device according to claim 8, characterized in that: There are two mounting strips (501) in total, and the two mounting strips (501) are fixedly mounted on the top of the movable plate (103) by screws; the circular mounting rod A (502) is rotatably mounted on the two mounting strips (501).

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