CN220984043U - Autologous arteriovenous fistula puncture model - Google Patents

Abstract

The utility model provides an autologous arteriovenous fistula puncture model, belongs to the technical field of medical equipment, and solves the problems that an existing autologous arteriovenous fistula puncture model cannot simulate the real state during puncture operation and does not have a puncture practice result detection function. Including containing box and emulation arm, the inside of containing box is fixed with hydraulic push rod, and hydraulic push rod's flexible end is fixed with supporting platform, is provided with rotatory fixture and detection mechanism on the supporting platform, and emulation arm detachable joint is equipped with the puncture exercise district on the emulation arm, and the inside in puncture exercise district is equipped with the exercise vessel. The utility model can truly simulate various states during the puncturing operation, can also be quickly stored after the training is finished, reduces the possibility of pollution to the simulated arm, can quickly and conveniently judge whether the puncturing position and the puncturing angle are correct, and assists a user to continuously correct own errors, thereby having good lifting effect.

Description

Autologous arteriovenous fistula puncture model

Technical Field

The utility model belongs to the technical field of medical equipment, and relates to an autologous arteriovenous fistula puncture model.

Background

The internal arteriovenous fistula is one of surgical operations and is mainly used for hemodialysis treatment, the internal arteriovenous fistula is a small operation of vascular anastomosis, an artery close to a wrist part of a forearm and an adjacent vein are sutured, arterial blood flows in the anastomosed vein to form an internal arteriovenous fistula, the blood vessel of the internal arteriovenous fistula can provide sufficient blood for the hemodialysis treatment and guarantee the sufficiency of the hemodialysis treatment, and for medical staff engaged in hemodialysis, the puncture of the internal arteriovenous fistula can be mastered by repeated practical operation training.

The existing automatic arteriovenous fistula puncture model cannot simulate the real state during puncture operation, does not have the puncture practice result detection function, is poor in user lifting effect, does not have the storage function of the automatic arteriovenous fistula puncture model, and is easy to pollute.

Through searching, for example, chinese patent literature discloses an arteriovenous internal fistula puncture model [ application number: 202120043639.3; publication No.: CN213815228U ]. The arteriovenous internal fistula puncture model comprises a supporting plate, wherein clamping boxes are fixedly connected to two sides of the front surface of the supporting plate, pull rods are arranged on the outer side of the clamping boxes, pull handles are fixedly connected to one sides of the two opposite pull rods, one sides of the two opposite pull rods penetrate through the clamping boxes and extend to the inner cavities of the clamping boxes, moving plates are fixedly connected to one sides of the two opposite pull rods, and springs are fixedly connected to the tops and the bottoms of the two opposite sides of the two moving plates.

Although the arteriovenous internal fistula puncture model disclosed in the patent can enable a user to perform puncture practice, the model cannot simulate the real state during puncture operation, does not have a puncture practice result detection function, has a poor user lifting effect, does not have a storage function for the autologous arteriovenous internal fistula puncture model, and is easy to pollute.

Based on the above, we propose an autologous arteriovenous fistula puncture model, various states during puncture operation can be truly simulated, the model can be rapidly stored after the practice is finished, the possibility of pollution to the simulated arm is reduced, the safety quality is improved, the puncture direction can be adjusted according to the puncture habit of a user, the height adjustment can be performed according to the height of the user, the application range is improved, whether the puncture position and the puncture angle are correct or not can be conveniently and rapidly judged, the user is assisted to continuously correct errors, the effectiveness of the practice is improved, and the effect is good.

Disclosure of utility model

The utility model aims at solving the problems in the prior art, and provides an autologous arteriovenous fistula puncture model, which aims at solving the technical problems that: how to perform high-fidelity puncture practice on the autologous arteriovenous fistula puncture model, and judge the practice result.

The aim of the utility model can be achieved by the following technical scheme:

The utility model provides an autologous arteriovenous fistula puncture model, includes containing box and emulation arm, the bottom of containing box is equipped with a plurality of ground truckles, be fixed with on the outer wall of containing box and remove the push rail, be equipped with the master control screen on the preceding terminal surface of containing box, the top of containing box articulates there is the top cap, be equipped with flip handle on the preceding terminal surface of top cap, the inside slip of containing box is equipped with a plurality of storage drawers, be fixed with on the preceding terminal surface of storage drawer and accomodate the handle, the inside of containing box is fixed with hydraulic push rod, hydraulic push rod's flexible end is fixed with supporting platform, be provided with rotatory fixture and detection mechanism on the supporting platform, emulation arm detachable joint is on rotatory fixture, hydraulic push rod, rotatory fixture and detection mechanism all with master control screen electric connection, be equipped with the puncture exercise area on the emulation arm, the inside of emulation arm is equipped with intravenous vessel and arterial tube, the tip and the outside peristaltic pump of arterial vessel are connected, be equipped with miniature electromagnetic vibrator on the arterial vessel's tip and outside storage tank are connected, be equipped with autologous arteriovenous fistula between intravenous fistula, the inside of puncture exercise area is equipped with the exercise vessel.

The working principle of the utility model is as follows: pulling or pushing to remove the pushing boom, through removing pushing boom and lower margin cooperation, convenient with this device and moving to the target position and train, pulling flip handle, flip handle drives the top cap and overturns, start hydraulic push rod through the master control screen, hydraulic push rod stretches out and drives supporting platform and rise, until supporting platform stretches out the containing box and moves to the assigned position, place emulation arm on rotatory fixture, start rotatory fixture and carry out the centre gripping fixedly to emulation arm, again according to user's demand, carry out rotatory regulation to the emulation arm after the centre gripping is fixed through rotatory fixture, until satisfying user's on the puncture direction habit, the user carries out puncture exercise to emulation arm, can carry out real blood vessel of simulation in artery and the vein with liquid input that has the colour through outside peristaltic pump, pulsation of artery can be simulated through miniature electromagnetic shaker, make this device more lifelike, after the puncture is accomplished, carry out the evaluation through detection mechanism to puncture position and angle, constantly correct the mistake in the user process, the user can put into exercise or take notes in a plurality of containing drawers, user and exercise articles for daily use are more convenient.

The two ends of the exercise vessel are both fixed with sealing convex blocks, the end parts of the vein vessel close to the exercise vessel are both provided with sealing convex grooves, the exercise vessel is sleeved on the vein vessel and is clamped and sealed with the sealing convex grooves through the sealing convex blocks, and a sealing ring is arranged between the sealing convex blocks and the sealing convex grooves.

By adopting the structure, through the cooperation of the sealing convex block and the sealing convex groove, the exercise vessel can be conveniently replaced, and the problem that the vessel cannot be replaced after the vessel is damaged by repeated exercise is avoided.

The outside of puncture exercise area is equipped with emulation crust, and the four sides of emulation crust are equipped with the stereoplasm connecting block, are equipped with a plurality of stopper on the stereoplasm connecting block, all offer the spacing groove on the terminal surface that is close to the puncture exercise area, stopper and spacing groove block.

By adopting the structure, the user who exercises for the first time can detach the simulation crust in the puncture exercise area, more intuitively senses the autologous arteriovenous fistula and exercises the vessel, quickly knows the puncture position, assembles the simulation crust completely after the user is familiar, simulates real arms, improves the effectiveness of exercises, simultaneously can conveniently replace the simulation crust in the puncture exercise area, improves the efficiency and reduces the cost.

The rotary clamping mechanism comprises a supporting seat and a fixing seat, wherein the supporting seat and the fixing seat are fixed at the top of a supporting platform, a rotating motor is fixed on the side wall of the fixing seat, a rotating rod is connected to the fixing seat in a rotating mode, an output shaft of the rotating motor is connected with the rotating rod in a transmission mode through a coupler, a clamping assembly is arranged at the top of the supporting seat in a rotating mode, the clamping assembly is connected with the rotating rod in a transmission mode, and a simulation arm is placed on the clamping assembly.

By adopting the structure, the rotating motor is started, the output shaft of the rotating motor drives the rotating rod to rotate through the coupler, the rotating rod drives the clamping assembly to rotate, the clamping assembly drives the simulation arm to rotate, and the angle adjustment is carried out, so that the habit of a user in the puncture direction is met.

The clamping assembly comprises a clamping motor and a clamping seat, the clamping seat is rotationally connected to a supporting seat, the left side wall of the clamping seat is fixedly connected with a rotating rod, a plurality of sliding grooves are formed in the right end face of the clamping seat, clamping blocks are slidably connected to the inside of the sliding grooves, rubber pads are arranged at the ends of the clamping blocks, movable seats are fixedly arranged at the bottoms of the clamping blocks, a gear disc and a power gear are rotationally arranged in the clamping seat, spiral baffles are arranged at the tops of the gear disc, the movable seats are slidably connected to the spiral baffles, the clamping motor is fixed to the outer wall of the clamping seat, an output shaft of the clamping motor is connected with the power gear through a coupling, the power gear is meshed with the gear disc, and a limiting rod is arranged in the clamping seat and is clamped with the power gear.

By adopting the structure, the clamping motor is started, the output shaft of the clamping motor drives the power gear to rotate forwards through the coupler, the power gear drives the gear disc to rotate, the gear disc drives the spiral baffle to rotate, the spiral baffle drives the movable seat to move along the sliding groove, the movable seat drives the clamping block to fold towards the circle center in the sliding groove and move until the simulation arm is clamped and fixed, and when the simulation arm is dismounted, the output shaft of the clamping motor is started to drive the power gear to rotate reversely through the coupler, so that the clamping block is far away from the circle center and moves in a diffusion way, the clamping and fixing of the simulation arm is relieved, the simulation arm can be taken down, and cleaning, replacement and maintenance of the simulation arm are facilitated.

The inside cavity of supporting platform has seted up on supporting platform's the up end and has dodged the groove, and detection mechanism includes angle measurement chi, distance measurement chi and two symmetrical distribution's electric putter, and electric putter's fixed end is fixed in supporting platform's inside, and the flexible end of two electric putter all with distance measurement chi's bottom fixed connection, angle measurement chi sliding connection is on distance measurement chi.

By adopting the structure, after the puncturing operation is finished, the electric push rod is started, the telescopic end of the electric push rod stretches out to drive the distance measuring ruler to move upwards until the distance measuring ruler passes through the avoidance groove to move to the appointed completion, a user can directly read the distance of the puncturing position through scales on the distance measuring ruler, judge whether the puncturing position is correct or not, move the angle measuring ruler to the puncturing position, directly read out the puncturing angle, judge whether the puncturing angle is correct or not, start the electric push rod after the detection is finished, retract the telescopic end of the electric push rod to drive the distance measuring ruler and the angle measuring ruler to move downwards until the distance measuring ruler is reset, and the next exercise of the user is not influenced.

Compared with the prior art, the autologous arteriovenous fistula puncture model has the following advantages:

1. The device can truly simulate various states during the puncturing operation, improves the effectiveness of puncturing exercise, can be quickly stored after the exercise is finished, reduces the possibility of pollution to the simulated arm, and improves the safety quality.

2. Through rotatory fixture, can be convenient carry out emulation arm installation and dismantlement, can also carry out the regulation of puncture direction simultaneously according to user's puncture custom, can carry out altitude mixture control to supporting platform through hydraulic push rod, satisfy the people of different heights and use this device to puncture the exercise, improved application range.

3. Through detection mechanism, can be convenient quick judge puncture position and puncture angle whether correct, auxiliary user constantly corrects oneself mistake, improves the effectiveness of exercise.

Drawings

Fig. 1 is a schematic front view of the present utility model when housed.

Fig. 2 is a schematic view of a partial cross-sectional structure of the present utility model in operation.

Fig. 3 is a schematic view showing a partial cross-sectional structure of an arteriovenous tube in the present utility model.

Fig. 4 is an enlarged schematic view of the structure at a in fig. 3.

FIG. 5 is a schematic view of a partial cross-sectional structure of a simulated arm according to the present utility model.

Fig. 6 is a schematic perspective view of a clamping assembly according to the present utility model.

Fig. 7 is a schematic view of the internal perspective structure of the clamping assembly of the present utility model.

In the figure, 1, a storage box; 2. a storage drawer; 3. a storage handle; 4. floor casters; 5. a main control screen; 6. a flip handle; 7. a top cover; 8. moving the pushing bar; 9. a hydraulic push rod; 10. a support platform; 11. a support base; 12. a rotating electric machine; 13. a fixing seat; 14. clamping the motor; 15. a clamping seat; 16. a clamping block; 17. an angle measuring ruler; 18. a distance measuring ruler; 19. simulating an arm; 20. an electric push rod; 21. autologous arteriovenous fistula; 22. a sealing bump; 23. sealing the convex groove; 24. venous vessel; 25. arterial tube; 26. a limiting block; 27. a limit groove; 28. a hard connecting block; 29. simulating the crust; 30. training vessels; 31. a puncture practice area; 32. a chute; 33. a spiral baffle; 34. a movable seat; 35. a power gear; 36. and a limit rod.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1-7, the autologous arteriovenous fistula puncture model comprises a storage box 1 and a simulation arm 19, wherein a plurality of ground casters 4 are arranged at the bottom of the storage box 1, a movable push rail 8 is fixed on the outer wall of the storage box 1, a main control screen 5 is arranged on the front end surface of the storage box 1, a top cover 7 is hinged at the top of the storage box 1, a flip handle 6 is arranged on the front end surface of the top cover 7, a plurality of storage drawers 2 are slidably arranged in the storage box 1, a storage handle 3 is fixed on the front end surface of the storage drawers 2, a hydraulic push rod 9 is fixed in the storage box 1, a supporting platform 10 is fixed at the telescopic end of the hydraulic push rod 9, a rotary clamping mechanism and a detection mechanism are arranged on the supporting platform 10, the simulation arm 19 is detachably clamped on the rotary clamping mechanism, the hydraulic push rod 9, the rotary clamping mechanism and the detection mechanism are electrically connected with the main control screen 5, the simulated arm 19 is provided with a puncture practice area 31, the inside of the simulated arm 19 is provided with a venous tube 24 and an arterial tube 25, the end part of the arterial tube 25 is connected with an external peristaltic pump, the arterial tube 25 is provided with a miniature vibrator, the end part of the venous tube 24 is connected with an external storage tank, an autologous arteriovenous fistula 21 is arranged between the venous tube 24 and the arterial tube 25, the inside of the puncture practice area 31 is provided with a practice vascular 30, in the embodiment, the simulated arm 19 is dragged or pushed to move the push bar 8, the device is conveniently moved to a target position for training by matching the moving push bar 8 with the foot wheel 4, the flip handle 6 is pulled, the flip handle 6 drives the top cover 7 to overturn, the hydraulic push rod 9 is started by the main control screen 5, the hydraulic push rod 9 stretches out to drive the supporting platform 10 to ascend until the supporting platform 10 stretches out of the storage box 1 and moves to a designated position, the simulated arm 19 is placed on the rotary clamping mechanism, the rotary clamping mechanism is started to clamp and fix the simulation arm 19, then the rotary clamping mechanism is used for carrying out rotary adjustment on the simulation arm 19 after the clamping and fixing is carried out according to the requirements of a user until the habit of the user in the puncture direction is met, the user can carry out puncture exercise on the simulation arm 19, the colored liquid can be input into the arterial tube 25 and the venous tube 24 through the external peristaltic pump to simulate real blood vessels, the pulsation of arteries can be simulated through the miniature vibrator, the device is enabled to be more vivid, the effectiveness of the exercise is improved, after the puncture is finished, the puncture position and angle are tested through the detection mechanism, errors in the user training process are continuously corrected, and the user can put exercise notes or commonly used articles in the plurality of storage drawers 2, so that the user exercises and lives are more convenient.

The both ends of exercise vessel 30 all are fixed with sealed lug 22, and sealed tongue 23 has all been seted up to the tip that is close to the vein pipe 24 of exercise vessel 30, and exercise vessel 30 cover is established on vein pipe 24 and is sealed through sealed lug 22 and sealed tongue 23 block, is equipped with the sealing washer between sealed lug 22 and the sealed tongue 23, in this embodiment, through sealed lug 22 and sealed tongue 23 cooperation, change exercise vessel 30 that can be convenient, avoid many times exercise damage the problem that can't change after the exercise vessel 30.

The outside of puncture exercise area 31 is equipped with emulation sheath 29, emulation sheath 29's four sides are equipped with stereoplasm connecting block 28, be equipped with a plurality of stopper 26 on the stereoplasm connecting block 28, limit groove 27 has all been seted up on the terminal surface that is close to puncture exercise area 31, stopper 26 and limit groove 27 block, in this embodiment, the user of primary exercise can dismantle the emulation sheath 29 of puncture exercise area 31, more audio-visual sensing is from the internal arteriovenous fistula 21 and exercise vessel 30, know the puncture position fast, after the user is familiar, with emulation sheath 29 assembly complete, simulate real arm, improve the validity of exercise, change emulation sheath 29 of puncture exercise area 31 that simultaneously can be convenient, and efficiency is improved, the cost is reduced.

The rotary clamping mechanism comprises a supporting seat 11 and a fixed seat 13, wherein the supporting seat 11 and the fixed seat 13 are fixed at the top of a supporting platform 10, a rotary motor 12 is fixed on the side wall of the fixed seat 13, a rotary rod is connected to the fixed seat 13 in a rotating mode, an output shaft of the rotary motor 12 is connected with the rotary rod in a transmission mode through a coupler, a clamping assembly is arranged on the top of the supporting seat 11 in a rotating mode, the clamping assembly is connected with the rotary rod in a transmission mode, a simulation arm 19 is placed on the clamping assembly, in the embodiment, the rotary motor 12 is started, an output shaft of the rotary motor 12 drives the rotary rod to rotate through the coupler, the rotary rod drives the clamping assembly to rotate, the clamping assembly drives the simulation arm 19 to rotate, and angle adjustment is achieved, so that the habit of a user in the puncture direction is met.

The clamping assembly comprises a clamping motor 14 and a clamping seat 15, the clamping seat 15 is rotationally connected to a supporting seat 11, the left side wall of the clamping seat 15 is fixedly connected with a rotating rod, a plurality of sliding grooves 32 are formed in the right end face of the clamping seat 15, clamping blocks 16 are slidably connected to the inside of the sliding grooves 32, rubber pads are arranged at the ends of the clamping blocks 16, moving seats 34 are fixedly arranged at the bottoms of the clamping blocks 16, a gear disc and a power gear 35 are rotatably arranged in the inside of the clamping seat 15, a spiral baffle 33 is arranged at the top of the gear disc, the moving seats 34 are slidably connected to the spiral baffle 33, the clamping motor 14 is fixed to the outer wall of the clamping seat 15, an output shaft of the clamping motor 14 is in transmission connection with the power gear 35 through a coupler, the power gear 35 is meshed with the gear disc, a limit rod 36 is arranged in the inside of the clamping seat 15, the limit rod 36 is clamped with the power gear 35, in this embodiment, the output shaft of the clamping motor 14 drives the power gear 35 to rotate positively, the gear disc drives the spiral baffle 33 to rotate, the spiral baffle 33 drives the moving seats 34 to move along the sliding grooves 32, the moving seats 34 drive the clamping blocks 16 to move the sliding grooves 19 in the direction away from the center of the corresponding clamping blocks, the simulated arms 19 are pulled away from the simulated arms, and the simulated arms 19 are removed, and the arms can be cleaned, and the arms can be conveniently replaced, and the arms can be cleaned.

The inside of supporting platform 10 is cavity, dodge the groove has been seted up on supporting platform 10's the up end, detection mechanism includes angle measurement chi 17, distance measurement chi 18 and two symmetrical distribution's electric putter 20, electric putter 20's fixed end is fixed in supporting platform 10's inside, the flexible end of two electric putter 20 all is fixed connection with distance measurement chi 18's bottom, angle measurement chi 17 sliding connection is on distance measurement chi 18, in this embodiment, after the puncture operation, start electric putter 20, electric putter 20's flexible end stretches out and drives distance measurement chi 18 and upwards moves, until pass dodging the groove and remove to appointed completion, the user can directly read out the distance of puncture position through the scale on distance measurement chi 18, judge whether puncture position is correct, whether puncture position is to puncture position, directly read out puncture angle, judge whether puncture angle is correct, start electric putter 20 after the detection is accomplished, electric putter 20's flexible end withdrawal drives distance measurement chi 18 and angle measurement chi 17 and move downwards, until reset, do not influence the user exercise next time.

The working principle of the utility model is as follows: pulling or pushing the movable push rail 8, conveniently moving the device to a target position for training by matching the movable push rail 8 with the ground wheel 4, inputting height data of a user into the main control screen 5, pulling the flip handle 6, driving the top cover 7 to turn over by the flip handle 6, starting the hydraulic push rod 9 through the main control screen 5, and extending the hydraulic push rod 9 to drive the supporting platform 10 to ascend until the supporting platform 10 extends out of the storage box 1 and moves to a designated position;

Placing the simulated arm 19 at the center of the clamping seat 15, starting the clamping motor 14, driving the power gear 35 to rotate positively by the output shaft of the clamping motor 14 through the coupler, driving the gear disc to rotate by the power gear 35, driving the spiral baffle 33 to rotate by the gear disc, driving the movable seat 34 to move along the sliding groove 32 by the spiral baffle 33, and driving the clamping block 16 to retract and move towards the circle center in the sliding groove 32 by the movable seat 34 until the simulated arm 19 is clamped and fixed;

Then according to the requirements of a user, the rotating motor 12 is started, the output shaft of the rotating motor 12 drives the rotating rod to rotate through the coupler, the rotating rod drives the clamping assembly to rotate, and the clamping assembly drives the simulation arm 19 to rotate, so that the angle adjustment is performed, and the habit of the user in the puncturing direction is met;

The external peristaltic pump can input the liquid with color into the vascular 25 and the venous 24 to simulate the real blood vessel, and the miniature vibrator can simulate the pulsation of the artery, so that the device is more vivid, and the effectiveness of exercise is improved; the exercise vessel 30 can be conveniently replaced by matching the sealing convex blocks 22 with the sealing convex grooves 23, so that the problem that the exercise vessel 30 cannot be replaced after being damaged by multiple exercises is avoided;

After the user performs puncture practice on the simulated arm 19 and correctly punctures the vein tube 24, a backflow phenomenon can occur, if the colored liquid is observed to flow back, the correct puncture of the vein tube 24 is indicated, the electric push rod 20 is started again, the telescopic end of the electric push rod 20 stretches out to drive the distance measuring ruler 18 to move upwards until the distance measuring ruler 18 passes through the avoidance groove to be moved to the appointed end, the user can directly read the distance of the puncture position through the scale on the distance measuring ruler 18, judge whether the puncture position is correct or not, move the angle measuring ruler 17 to the puncture position, directly read the puncture angle, judge whether the puncture angle is correct or not, and continuously correct errors in the training process of the user;

After the detection is finished, the electric push rod 20 is started, and the telescopic end of the electric push rod 20 is retracted to drive the distance measuring ruler 18 and the angle measuring ruler 17 to move downwards until reset, so that the next practice use of a user is not affected;

After the puncture exercise is finished, the hydraulic push rod 9 is started, the hydraulic push rod 9 is retracted to drive the supporting platform 10 and the like to reset, the flip handle 6 is pulled to drive the top cover 7 to overturn until the top cover 7 covers the top of the storage box 1, the closing seal is completed, dirt such as dust in the external environment is prevented from entering the storage box 1 to pollute the simulation arm 19, the follow-up exercise use is influenced, a user can also put exercise notes or common articles in the plurality of storage drawers 2, and the user exercises and lives more conveniently.

In sum, the device can truly simulate various states during the puncture operation, improves the effectiveness of puncture practice, can also be quickly stored after the practice is finished, reduces the possibility of pollution to the simulated arm 19, and improves the safety quality.

Through rotatory fixture, can be convenient carry out emulation arm 19 installation and dismantlement, can also carry out the regulation of puncture direction simultaneously according to user's puncture custom, can carry out altitude mixture control to supporting platform 10 through hydraulic push rod 9, satisfy the people of different heights and use this device to puncture the exercise, improved application range.

Through detection mechanism, can be convenient quick judge puncture position and puncture angle whether correct, auxiliary user constantly corrects oneself mistake, improves the effectiveness of exercise.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims (6)

1. The utility model comprises a storage box (1) and a simulation arm (19), and is characterized in that the bottom of the storage box (1) is provided with a plurality of ground casters (4), a movable push rail (8) is fixed on the outer wall of the storage box (1), a main control screen (5) is arranged on the front end face of the storage box (1), a top cover (7) is hinged at the top of the storage box (1), a flip handle (6) is arranged on the front end face of the top cover (7), a plurality of storage drawers (2) are slidably arranged in the storage box (1), a storage handle (3) is fixed on the front end face of the storage drawers (2), a hydraulic push rod (9) is fixed in the storage box (1), a supporting platform (10) is fixed at the telescopic end of the hydraulic push rod (9), a rotary clamping mechanism and a detection mechanism are arranged on the supporting platform (10), the simulation arm (19) is detachably clamped on the rotary clamping mechanism, the hydraulic push rod (9), the rotary clamping mechanism and the detection mechanism are electrically connected with the main control screen (5), a puncture area (31) is arranged on the simulation arm (19), a venous tube (19) is internally provided with a peristaltic pump (25) and an arterial tube (25) is arranged at the end part of the arterial tube (25), the end part of the intravenous tube (24) is connected with an external storage tank, an autologous arteriovenous fistula (21) is arranged between the intravenous tube (24) and the arterial tube (25), and an exercise vessel (30) is arranged in the puncture exercise area (31).

2. The autologous arteriovenous fistula puncture model of claim 1, wherein sealing convex blocks (22) are fixed at two ends of the training vessel (30), sealing convex grooves (23) are formed in the ends of the vein tube (24) close to the training vessel (30), the training vessel (30) is sleeved on the vein tube (24) and is clamped and sealed with the sealing convex grooves (23) through the sealing convex blocks (22), and sealing rings are arranged between the sealing convex blocks (22) and the sealing convex grooves (23).

3. The automatic arteriovenous fistula puncture model of claim 1, wherein a simulation sheath (29) is arranged outside the puncture practice area (31), hard connecting blocks (28) are arranged on four sides of the simulation sheath (29), a plurality of limiting blocks (26) are arranged on the hard connecting blocks (28), limiting grooves (27) are formed in end faces, close to the puncture practice area (31), of the simulation sheath, and the limiting blocks (26) are clamped with the limiting grooves (27).

4. The autologous arteriovenous fistula puncture model according to claim 1, wherein the rotary clamping mechanism comprises a supporting seat (11) and a fixing seat (13), the supporting seat (11) and the fixing seat (13) are both fixed at the top of the supporting platform (10), a rotary motor (12) is fixed on the side wall of the fixing seat (13), a rotary rod is rotationally connected to the fixing seat (13), an output shaft of the rotary motor (12) is in transmission connection with the rotary rod through a coupler, a clamping assembly is rotationally arranged at the top of the supporting seat (11), the clamping assembly is in transmission connection with the rotary rod, and an artificial arm (19) is placed on the clamping assembly.

5. The automatic arteriovenous fistula puncture model of claim 4, wherein the clamping assembly comprises a clamping motor (14) and a clamping seat (15), the clamping seat (15) is rotationally connected to the supporting seat (11), the left side wall of the clamping seat (15) is fixedly connected with a rotating rod, a plurality of sliding grooves (32) are formed in the right end face of the clamping seat (15), clamping blocks (16) are slidably connected in the sliding grooves (32), rubber pads are arranged at the end parts of the clamping blocks (16), movable seats (34) are fixedly arranged at the bottoms of the clamping blocks (16), gear plates and power gears (35) are rotatably arranged in the clamping seat (15), spiral baffle plates (33) are arranged at the tops of the gear plates, the movable seats (34) are slidably connected to the spiral baffle plates (33), the clamping motor (14) is fixed to the outer wall of the clamping seat (15), an output shaft of the clamping motor (14) is in transmission connection with the power gears (35), the power gears (35) are meshed with the gear plates, limit rods (36) are arranged in the clamping seat (15), and the limit rods (36) are clamped with the power gears (35).

6. The automatic arteriovenous fistula puncture model of claim 1, wherein the supporting platform (10) is hollow, an avoidance groove is formed in the upper end face of the supporting platform (10), the detection mechanism comprises an angle measuring ruler (17), a distance measuring ruler (18) and two symmetrically distributed electric push rods (20), the fixed ends of the electric push rods (20) are fixed in the supporting platform (10), the telescopic ends of the two electric push rods (20) are fixedly connected with the bottom of the distance measuring ruler (18), and the angle measuring ruler (17) is slidably connected to the distance measuring ruler (18).