Automation-based guide wire device for puncture

Abstract

The invention discloses a puncture guide wire device based on automation, and relates to the technical field of medical instruments, and the technical scheme is characterized in that the puncture guide wire device comprises a puncture needle, the puncture needle is provided with a connector, the connector is provided with a suction mechanism, and the suction mechanism is used for sucking effusion to observe and verify whether the puncture needle reaches the interior of the effusion or not; the suction mechanism is provided with a buffer mechanism, the buffer mechanism is used for controlling the suction speed of the suction mechanism, the suction mechanism is provided with a guide wire imbedding mechanism, and the guide wire imbedding mechanism is used for imbedding a guide wire into hydrops through a puncture needle. Whether a puncture needle reaches the interior of hydrops or not can be accurately judged through the suction mechanism, repeated puncture is avoided, the risk of mistakenly puncturing blood vessels or visceral organs is reduced, pneumothorax and hemothorax conditions are prevented, meanwhile, the guide wire placement mechanism replaces manual operation, an operator can complete guide wire placement operation by one person, and the operation efficiency is improved. The accuracy and the safety of puncture are effectively improved, and the risk in an operation is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly to an automated puncture guidewire device. Background Art

[0002] Puncture and drainage is a common medical procedure, mainly used to diagnose or treat abnormal fluid accumulation in the body (such as pus, blood, cyst fluid, bile, urine or ascites, etc.). Its core purpose is to use a thin needle or catheter to establish a channel from the body surface to the fluid accumulation site in the body, and drain the accumulated fluid out of the body.

[0003] Specifically in the puncture and drainage operation, the puncture needle needs to be performed under ultrasound guidance. When the ultrasound image shows that the puncture needle has entered the effusion, the operator needs to put down the ultrasound probe, hold the puncture needle steady with one hand, and withdraw the syringe with the other hand to verify that the puncture needle has definitely reached the effusion. After verification, the guide wire needs to be manually inserted again.

[0004] During the period of lowering the ultrasound probe, there is a blank period of tens of seconds during which the position of the puncture needle and the activity of the lung lobe (intestines, heart) cannot be observed. If the patient breathes too deeply or moves slightly during this period, the tip of the puncture needle can easily damage the lung tissue (intestines, heart), leading to pneumothorax or hemothorax, thereby greatly increasing the intraoperative risk.

[0005] Therefore, the present invention aims to provide an automated puncture guidewire device to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide an automated puncture guidewire device. The present invention utilizes a suction mechanism to aspirate the effusion during the puncture process. The operator can accurately determine whether the puncture needle has reached the inside of the effusion by observing the properties of the extracted effusion, thereby avoiding repeated punctures and reducing the risk of accidentally puncturing blood vessels or organs. At the same time, a guidewire insertion mechanism is also provided on the suction mechanism. The guidewire insertion mechanism replaces manual operation, allowing the operator to quickly complete the guidewire insertion operation alone under ultrasound guidance and real-time monitoring. Once the guidewire is inserted into the effusion through the puncture needle, safety can be greatly guaranteed, especially when puncturing the intrahepatic bile duct, which has obvious advantages and safety.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: an automated puncture guidewire device, comprising a puncture needle, a connector provided on the puncture needle, a suction mechanism provided on the connector, the suction mechanism being used to aspirate the effusion to observe and verify whether the puncture needle has reached the inside of the effusion, a buffer mechanism provided on the suction mechanism, the buffer mechanism being used to control the suction speed of the suction mechanism, a guidewire insertion mechanism provided on the suction mechanism, the guidewire insertion mechanism being used to insert the guidewire into the inside of the effusion through the puncture needle.

[0008] By adopting the above technical solution, a connector is provided on the puncture needle, and a suction mechanism is provided on the connector. The suction mechanism can timely suction the effusion and observe and verify whether the puncture needle reaches the inside of the effusion, which can effectively improve the accuracy of puncture and avoid blind puncture. At the same time, a buffer mechanism is provided on the suction mechanism, and the buffer mechanism can control the suction speed to prevent adverse conditions such as reflux of the effusion due to excessive suction, thereby ensuring the stability and safety of the puncture operation. In addition, a guide wire insertion mechanism is provided on the suction mechanism, and the guide wire insertion mechanism can conveniently insert the guide wire into the effusion through the puncture needle, thereby facilitating subsequent treatment or diagnostic operations.

[0009] The present invention is further configured as follows: the suction mechanism includes a syringe, a piston, a push rod, a coil spring and a fixed block; the end of the syringe is connected to the connecting head, the piston slides in contact with the inner wall of the syringe, the two ends of the push rod are respectively connected to the piston and the fixed block, the coil spring is sleeved on the push rod and its two ends are respectively connected to the outer wall of the syringe and the fixed block.

[0010] By adopting the above technical solution, the syringe is connected to the connector, and the piston slides in the syringe, cooperating with the push rod, coil spring and fixed block, so that when aspirating the effusion, the push rod drives the piston to move to form a negative pressure to aspirate the effusion, and the coil spring can play a certain resetting and buffering role. When the piston moves, the deformation of the spring can control the movement speed of the piston, and then control the aspiration speed. The overall structure is simple and reliable, which facilitates the aspiration of the effusion and the observation and verification of the position of the puncture needle.

[0011] The present invention is further configured as follows: the buffer mechanism includes a sealed tube, a slider and a movable rod; the end of the sealed tube is connected to the syringe, the two ends of the movable rod are respectively connected to the slider and the fixed block, and the slider is located inside the sealed tube.

[0012] By adopting the above technical solution, the end of the sealed cylinder is connected to the syringe, and the two ends of the movable rod are respectively connected to the slider and the fixed block. The slider is located inside the sealed cylinder. When the suction mechanism is working, the slider moves in the sealed cylinder, and the movable rod drives the fixed block to affect the movement of the push rod. Due to the sealing of the sealed cylinder and the friction between the slider and the cylinder wall, the movement speed of the piston during suction can be effectively buffered, further ensuring the stability and controllability of the suction speed, and improving the accuracy and safety of the puncture operation.

[0013] The present invention is further configured such that: the number of the buffer mechanisms is two.

[0014] By adopting the above technical solution, the number of buffer mechanisms is set to two, which can make the buffer control of the suction speed more balanced and stable, and the movement of the suction mechanism is buffered and limited from different directions or angles, thereby improving the stability and reliability of the entire device during the suction process, better avoiding the risks caused by excessive suction speed, and enhancing the practicality and safety of the device.

[0015] The present invention is further configured such that high-viscosity lubricating grease is provided inside the sealed cylinder.

[0016] By adopting the above technical solution, high-viscosity grease is provided inside the sealed cylinder. The high-viscosity grease inside the sealed cylinder can increase the resistance of the slider when it moves in the cylinder, further enhancing the buffering effect, making the piston of the suction mechanism move more smoothly and slowly, thereby more accurately controlling the suction speed. At the same time, the high-viscosity grease can also play a certain sealing and lubricating role, thereby extending the service life of the buffer mechanism and ensuring long-term stable operation of the device.

[0017] The present invention is further configured as follows: the guide wire insertion mechanism includes a wire threading tube, a fixed shell, a second rotating wheel, a second rotating shaft, a first rotating wheel, a first rotating shaft, a speed-increasing transmission mechanism and a spring mechanism; a wire threading hole one is provided in the push rod, a second wire threading hole two is provided in the fixed block, the first wire threading hole and the second wire threading hole are aligned and located on the same horizontal straight line, one end of the wire threading tube is connected to the connecting head, the other end of the wire threading tube is located in the first wire threading hole, the fixed shell is connected to the fixed block, the two ends of the second rotating shaft are respectively rotatably connected to the two opposite side walls of the fixed shell, the second rotating wheel is fixedly sleeved on the second rotating shaft, the end of the first rotating shaft is rotatably connected to the side wall of the fixed shell, the first rotating wheel is fixedly sleeved on the first rotating shaft, the spring mechanism is fixedly connected to the side wall of the fixed shell, and the two ends of the speed-increasing transmission mechanism are respectively connected to the first rotating shaft and the spring mechanism.

[0018] By adopting the above technical solution, the guidewire insertion mechanism is coordinated through the wire threading tube, the fixed shell and a series of rotating wheels, the rotating shaft, the speed-increasing transmission mechanism and the clockwork mechanism, so that the guidewire can be automatically, quickly and stably inserted into the effusion. The wire threading hole 1 in the push rod is aligned with the wire threading hole 2 in the fixed block to ensure the smooth passage of the guidewire. The rotating wheel and other components can drive the guidewire to rotate and move forward. The speed-increasing transmission mechanism can increase the speed of guidewire insertion, and the clockwork mechanism can provide continuous power, making the guidewire insertion process more convenient and efficient, and improving the convenience and success rate of operation.

[0019] The present invention is further configured as follows: the clockwork mechanism includes a fixed box, a torsion spring sheet and a third rotating shaft; the fixed box is fixedly connected to the side wall of the fixed shell, the third rotating shaft passes through the fixed box, and the two ends of the torsion spring sheet are respectively connected to the fixed box and the third rotating shaft.

[0020] By adopting the above technical solution, the fixed box is fixedly connected to the side wall of the fixed shell, the rotating shaft three passes through the fixed box, and the two ends of the torsion spring sheet are respectively connected to the fixed box and the rotating shaft three. The rotational motion of the rotating shaft three can be converted into elastic deformation energy storage of the torsion spring sheet. When the guide wire needs to be inserted, the elastic potential energy of the torsion spring sheet is converted into kinetic energy, driving the rotating shaft three to rotate, thereby providing a stable and reliable power source for the rapid insertion of the guide wire. In addition, the structure is compact and easy to be integrated into the device, thereby realizing the automatic insertion function of the guide wire.

[0021] The present invention is further configured as follows: the speed increasing transmission mechanism includes a large gear 1, a rotating shaft 4, a small gear 1, a large gear 2 and a small gear 2; the end of the rotating shaft 4 is rotatably connected to the side wall of the fixed shell, the large gear 1 is fixedly sleeved on the rotating shaft 3, the small gear 1 and the large gear 2 are both fixedly sleeved on the rotating shaft 4, the small gear 2 is fixedly sleeved on the rotating shaft 1, the large gear 1 is meshed with the small gear 1, and the large gear 2 is meshed with the small gear 2.

[0022] By adopting the above technical solution, the combination of large gear one, rotating shaft four, small gear one, large gear two and small gear two of the speed-increasing transmission mechanism can increase the low-speed rotation of rotating shaft three of the clockwork mechanism through gear meshing transmission, and then transmit it to rotating shaft one, thereby driving the rotating wheel one to rotate rapidly, so that the guide wire can be inserted into the effusion at a faster speed, shortening the insertion time and improving the overall efficiency of the puncture operation. At the same time, this gear transmission method can ensure the stability and accuracy of power transmission.

[0023] The present invention is further configured as follows: a limiting mechanism is further provided on the rotating shaft three, the limiting mechanism comprising a limiting ratchet and a pawl, the limiting ratchet is fixedly sleeved on the rotating shaft three, and the pawl is hinged to the fixed housing.

[0024] By adopting the above technical solution, the limiting ratchet is fixedly sleeved on the rotating shaft three, and the pawl is hinged to the fixed shell, so that the rotation angle and direction of the rotating shaft three can be limited, ensuring that the clockwork mechanism does not rotate excessively when tightening the spring sheet, preventing the torsion spring sheet from being damaged due to excessive deformation. At the same time, during the guide wire insertion process, the limiting ratchet and the pawl cooperate to ensure that the rotating shaft three releases energy according to the set rotation direction and angle, so that the guide wire is always inserted at a stable speed and state, ensuring the safety and reliability of the operation.

[0025] The present invention is further configured as follows: a clamping ring is provided on the end of the torsion spring sheet away from the rotating shaft three, a clamping groove is provided on the fixing box, and the clamping ring is located in the clamping groove.

[0026] By adopting the above technical solution, a clamping ring is provided on the end of the torsion spring piece away from the rotating shaft three, and a clamping groove is provided on the fixing box. The clamping ring is located in the clamping groove. The clamping ring at the end of the torsion spring piece cooperates with the clamping groove on the fixing box, so that the torsion spring piece can be effectively fixed to prevent it from shifting or loosening during the operation of the device, thereby ensuring the normal operation of the clockwork mechanism, thereby ensuring the stable and reliable operation of the guide wire insertion mechanism, improving the stability and safety of the entire guide wire device, and extending the service life of the device.

[0027] In summary, the present invention has the following beneficial effects:

[0028] 1. The present invention equips the puncture needle with a connector and a suction mechanism, which can timely aspirate the effusion and visually observe it, thereby accurately judging whether the puncture needle has reached the interior of the effusion, effectively avoiding blind puncture, and greatly improving the accuracy of the puncture operation. At the same time, the buffer mechanism on the suction mechanism can accurately control the suction speed, preventing adverse conditions such as effusion backflow caused by excessive suction, ensuring a smooth and orderly puncture process, protecting patient safety, reducing puncture operation risks, and improving the reliability of the puncture operation;

[0029] 2. The suction mechanism of the present invention uses a push rod to drive the piston to move to form a negative pressure to suck the accumulated fluid. The coil spring plays a reset and buffering role. The spring deformation is used to control the piston movement speed, thereby accurately adjusting the suction speed. The structure is simple, efficient and reliable, and it is convenient to realize the suction and verify the position of the puncture needle. At the same time, the slider in the buffer mechanism moves in the sealed cylinder. With the help of the sealing of the sealed cylinder and the friction between the slider and the cylinder wall, the piston movement speed is effectively buffered, further ensuring that the suction speed is stable and controllable, and improving the accuracy and safety of the puncture operation.

[0030] 3. The present invention is equipped with two buffer mechanisms, which make the suction speed buffer control more balanced and stable. The suction mechanism movement is buffered and limited from different directions or angles, thereby improving the stability and reliability of the device during the suction process, better avoiding the risks brought by excessive suction speed, and enhancing practicality and safety. At the same time, high-viscosity grease is provided in the sealed cylinder to increase the movement resistance of the slider, further enhancing the buffer effect, making the piston move more smoothly and slowly, and accurately controlling the suction speed. In addition, the high-viscosity grease has sealing and lubricating functions, reducing component wear, extending the service life of the buffer mechanism, and ensuring long-term stable operation of the device.

[0031] 4. The guidewire insertion mechanism of the present invention can realize automatic, rapid and stable insertion of the guidewire into the effusion, wherein the push rod is aligned with the wire threading hole provided in the fixed block to ensure smooth passage of the guidewire, and the rotating wheel and other components drive the guidewire to rotate and advance, the speed-increasing transmission mechanism increases the insertion speed, and the clockwork mechanism provides continuous power, making the guidewire insertion more convenient and efficient, improving the convenience of operation and the success rate. At the same time, the speed-increasing transmission mechanism accelerates the low-speed rotation of the clockwork mechanism shaft 3 and transmits it to the shaft 1, driving the rotating wheel 1 to rotate rapidly, thereby accelerating the guidewire insertion speed, shortening the insertion time, and improving the overall efficiency of the puncture operation, while ensuring the stability and accuracy of power transmission;

[0032] 5. The present invention is provided with a limiting mechanism on the rotating shaft three. The limiting ratchet and pawl can limit the rotation angle and direction of the rotating shaft three, preventing the torsion spring sheet from being damaged due to excessive rotation when the clockwork mechanism tightens the spring sheet, ensuring that the rotating shaft three releases energy in the set direction and angle during the guide wire insertion process, so that the guide wire can be inserted stably, ensuring operational safety and reliability. At the same time, the overload protection design of the torsion spring sheet allows the clamping ring to slide into the next groove when the energy storage is overloaded, effectively releasing the overload energy, preventing the torsion spring sheet from being damaged due to overload, and ensuring the smooth operation of the puncture and drainage procedure. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of the appearance of an automated puncture guidewire device according to an embodiment of the present invention;

[0034] Figure 2 This is a front cross-sectional view of an automated puncture guidewire device according to an embodiment of the present invention;

[0035] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0036] Figure 4 is a front cross-sectional view of a guidewire insertion mechanism according to an embodiment of the present invention;

[0037] Figure 5 is a front cross-sectional view of a clockwork mechanism according to an embodiment of the present invention;

[0038] Figure 6 This is a connection diagram of the speed-increasing transmission mechanism in an embodiment of the present invention;

[0039] Figure 7 Schematic diagram of the connection between the limiting ratchet and the pawl in an embodiment of the present invention.

[0040] Figure: 1, puncture needle; 2, connector; 3, suction mechanism; 301, syringe; 302, piston; 303, push rod; 304, coil spring; 305, fixed block; 4, buffer mechanism; 401, sealed cylinder; 402, slider; 403, movable rod; 404, high-viscosity grease; 5, guide wire insertion mechanism; 501, wire threading tube; 502, fixed housing; 503, rotating wheel 2; 504, rotating shaft 2; 505, rotating Wheel one; 506, rotating shaft one; 6, speed increasing transmission mechanism; 601, large gear one; 602, rotating shaft four; 603, small gear one; 604, large gear two; 605, small gear two; 7, clockwork mechanism; 701, fixed box; 702, torsion spring sheet; 703, rotating shaft three; 8, limiting mechanism; 801, limiting ratchet; 802, pawl; 9, threading hole one; 10, threading hole two; 11, snap ring; 12, snap groove. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-Figure 7 The present invention is described in further detail.

[0042] The embodiment of the present invention is a guide wire device for puncture based on automation, comprising a puncture needle 1, a connector 2 fixedly mounted on the puncture needle 1, a suction mechanism 3 provided on the connector 2, the suction mechanism 3 being used to aspirate the effusion to observe and verify whether the puncture needle 1 has reached the inside of the effusion, a buffer mechanism 4 being provided on the suction mechanism 3, the buffer mechanism 4 being used to control the aspiration speed of the suction mechanism 3, a guide wire insertion mechanism 5 being provided on the suction mechanism 3, the guide wire insertion mechanism 5 being used to insert the guide wire into the inside of the effusion through the puncture needle 1, wherein the suction mechanism 3 can aspirate the effusion in time and observe and verify whether the puncture needle 1 has reached the inside of the effusion, which can effectively improve the accuracy of the puncture and avoid blind puncture, while the buffer mechanism 4 can control the aspiration speed to prevent adverse conditions such as reflux of the effusion due to excessive aspiration, thereby ensuring the stability and safety of the puncture operation, and the guide wire insertion mechanism 5 can conveniently insert the guide wire into the inside of the effusion through the puncture needle 1, which is convenient for subsequent treatment or diagnosis operations.

[0043] The preferred embodiment of the present invention comprises a suction mechanism 3 including a syringe 301, a piston 302, a push rod 303, a coil spring 304 and a fixed block 305; the end of the syringe 301 is connected to the connector 2, the piston 302 slides in contact with the inner wall of the syringe 301, the two ends of the push rod 303 are respectively connected to the piston 302 and the fixed block 305, the coil spring 304 is sleeved on the push rod 303 and its two ends are respectively connected to the outer wall of the syringe 301 and the fixed block 305, so that when aspirating the effusion, the piston 302 is driven to move by the push rod 303 to form a negative pressure to aspirate the effusion, and the coil spring 304 can play a certain resetting and buffering role. When the piston 302 moves, the deformation of the spring can control the movement speed of the piston 302, and then control the suction speed. The overall structure is simple and reliable, which is convenient for aspirating the effusion and observing and verifying the position of the puncture needle 1.

[0044] In this embodiment, the buffer mechanism 4 preferably includes a sealed tube 401, a slider 402 and a movable rod 403; the end of the sealed tube 401 is connected to the syringe 301, and the two ends of the movable rod 403 are respectively connected to the slider 402 and the fixed block 305. The slider 402 is located inside the sealed tube 401. When the suction mechanism 3 is working, the slider 402 moves in the sealed tube 401, and the fixed block 305 is driven by the movable rod 403 to affect the movement of the push rod 303. Due to the sealing of the sealed tube 401 and the friction between the slider 402 and the tube wall, the moving speed of the piston 302 during suction can be effectively buffered, further ensuring the stability and controllability of the suction speed, and improving the accuracy and safety of the puncture operation.

[0045] Preferably, in this embodiment, the number of buffer mechanisms 4 is set to two, which can make the buffer control of the suction speed more balanced and stable, and buffer and limit the movement of the suction mechanism 3 from different directions or angles, thereby improving the stability and reliability of the entire device during the suction process, better avoiding the risks caused by excessive suction speed, and enhancing the practicality and safety of the device.

[0046] Preferably, in this embodiment, the sealed cylinder 401 is filled with high-viscosity grease 404. The high-viscosity grease 404 inside the sealed cylinder 401 can increase the resistance of the slider 402 when moving in the cylinder, further enhancing the buffering effect, so that the piston 302 of the suction mechanism 3 moves more smoothly and slowly, thereby more accurately controlling the suction speed. At the same time, the high-viscosity grease 404 can also play a certain sealing and lubricating role, thereby extending the service life of the buffer mechanism 4 and ensuring long-term stable operation of the device.

[0047] The present embodiment preferably, the guide wire insertion mechanism 5 comprises a wire threading tube 501, a fixed housing 502, a rotating wheel 2 503, a rotating shaft 2 504, a rotating wheel 1 505, a rotating shaft 1 506, a speed increasing transmission mechanism 6 and a clockwork mechanism 7; a wire threading hole 1 9 is provided in the push rod 303, a wire threading hole 2 10 is provided in the fixed block 305, the wire threading hole 1 9 is aligned with the wire threading hole 2 10 and is located on the same horizontal straight line, one end of the wire threading tube 501 is connected to the connector 2, the other end of the wire threading tube 501 is located in the wire threading hole 1 9, the fixed housing 502 is connected to the fixed block 305, the two ends of the rotating shaft 2 504 are respectively rotatably connected to the two opposite side walls of the fixed housing 502, and the rotating wheel 2 503 is fixed It is sleeved on the second rotating shaft 504, the end of the first rotating shaft 506 is rotatably connected to the side wall of the fixed shell 502, the rotating wheel 1 505 is fixedly sleeved on the first rotating shaft 506, the clockwork mechanism 7 is fixedly connected to the side wall of the fixed shell 502, and the two ends of the speed-increasing transmission mechanism 6 are respectively connected to the first rotating shaft 506 and the clockwork mechanism 7, wherein the wire threading hole 1 9 in the push rod 303 is aligned with the wire threading hole 2 10 in the fixed block 305 to ensure that the guide wire passes smoothly, and the rotating wheel and other components can drive the guide wire to rotate and move forward. The speed-increasing transmission mechanism 6 can increase the speed of guide wire insertion, and the clockwork mechanism 7 can provide continuous power, making the guide wire insertion process more convenient and efficient, and improving the convenience and success rate of operation.

[0048] Preferably, the clockwork mechanism 7 includes a fixed box 701, a torsion spring sheet 702 and a rotating shaft 3 703; the fixed box 701 is fixedly connected to the side wall of the fixed shell 502, the rotating shaft 3 703 passes through the fixed box 701, and the two ends of the torsion spring sheet 702 are respectively connected to the fixed box 701 and the rotating shaft 3 703, so that the rotational motion of the rotating shaft 3 703 can be converted into the elastic deformation energy storage of the torsion spring sheet 702. When the guide wire needs to be inserted, the elastic potential energy of the torsion spring sheet 702 is converted into kinetic energy, driving the rotating shaft 3 703 to rotate, thereby providing a stable and reliable power source for the rapid insertion of the guide wire, and the structure is compact, which is easy to be integrated into the device, thereby realizing the automatic insertion function of the guide wire.

[0049] In this embodiment, the speed increasing transmission mechanism 6 preferably includes a large gear 1 601, a rotating shaft 4 602, a small gear 1 603, a large gear 2 604 and a small gear 2 605; the end of the rotating shaft 4 602 is rotatably connected to the side wall of the fixed shell 502, the large gear 1 601 is fixedly sleeved on the rotating shaft 3 703, the small gear 1 603 and the large gear 2 604 are both fixedly sleeved on the rotating shaft 4 602, and the small gear 2 605 is fixedly sleeved on the rotating shaft 1 506. The large gear 1 601 and the small gear 1 603 are meshed, and the large gear 2 604 and the small gear 2 605 are meshed. The low-speed rotation of the rotating shaft 3 703 of the clockwork mechanism 7 can be accelerated through the gear meshing transmission and then transmitted to the rotating shaft 1 506, thereby driving the rotating wheel 1 505 to rotate rapidly, so that the guide wire can be inserted into the effusion at a faster speed, shortening the insertion time and improving the overall efficiency of the puncture operation. At the same time, this gear transmission method can ensure the stability and accuracy of power transmission.

[0050] Preferably, a limiting mechanism 8 is further provided on the rotating shaft three 703. The limiting mechanism 8 includes a limiting ratchet 801 and a pawl 802. The limiting ratchet 801 is fixedly sleeved on the rotating shaft three 703, and the pawl 802 is hinged to the fixed shell 502, so that the rotation angle and direction of the rotating shaft three 703 can be limited, ensuring that the clockwork mechanism 7 does not rotate excessively when tightening the spring sheet, preventing the torsion spring sheet 702 from being damaged due to excessive deformation. At the same time, during the guide wire insertion process, the limiting ratchet 801 cooperates with the pawl 802 to ensure that the rotating shaft three 703 releases energy according to the set rotation direction and angle, so that the guide wire is always inserted at a stable speed and state, ensuring the safety and reliability of the operation.

[0051] Preferably, in this embodiment, a clamping ring 11 is provided on the end of the torsion spring piece 702 away from the rotating shaft three 703, and a clamping groove 12 is provided on the fixing box 701. The clamping ring 11 is located in the clamping groove 12. By utilizing the clamping ring 11 at the end of the torsion spring piece 702 to cooperate with the clamping groove 12 on the fixing box 701, the torsion spring piece 702 can be effectively fixed to prevent it from shifting or loosening during the operation of the device, thereby ensuring the normal operation of the clockwork mechanism 7, thereby ensuring the stable and reliable operation of the guide wire insertion mechanism 5, improving the stability and safety of the entire guide wire device, and extending the service life of the device.

[0052] Working principle: When using the puncture guide wire device, the operator first rotates the rotating shaft 3 703 clockwise, and the rotating shaft 3 703 drives the torsion spring sheet 702 to twist and tighten to store energy, and moves the ratchet 802 to press against the limit ratchet 801, completing the pre-energy storage operation of the clockwork mechanism 7, and then pushes the fixed block 305 toward the direction of the syringe 301, so that the piston 302 is located at the leftmost end of the syringe 301. At this time, the coil spring 304 is compressed to generate energy, completing the preliminary preparations for using the guide wire device. When performing the puncture operation, the operator holds the ultrasonic probe in one hand and the puncture needle 1 in the other hand to slowly and accurately pierce the target effusion position. When the puncture needle 1 reaches the inside of the effusion, the coil spring 3 04 Push the fixed block 305 away from the syringe 301 at a constant and slow speed, drive the piston 302 to move to the right, simulate the operation of manually withdrawing the effusion, and suck the effusion into the syringe 301, so that the operator can verify that the puncture needle 1 has reached the inside of the effusion, and then move the pawl 802 away from the limiting ratchet 801. At this time, the torsion spring piece 702 releases energy to drive the rotating wheel 1 505 and the rotating wheel 2 503 to rotate, simulating the operation of manually inserting the guide wire, and using the rotating wheel 1 505 and the rotating wheel 2 503 to push the guide wire through the puncture needle 1 into the inside of the effusion, completing the guide wire insertion operation. The guide wire device enables a single person to complete the guide wire insertion operation, greatly improving the accuracy and safety of puncture.

[0053] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An automated puncture guidewire device, characterized in that: The invention comprises a puncture needle (1), wherein the puncture needle (1) is provided with a connector (2), and the connector (2) is provided with a suction mechanism (3), and the suction mechanism (3) is used to suction the effusion to observe and verify whether the puncture needle (1) reaches the inside of the effusion, and the suction mechanism (3) is provided with a buffer mechanism (4), and the buffer mechanism (4) is used to control the suction speed of the suction mechanism (3), and the suction mechanism (3) is provided with a guide wire insertion mechanism (5), and the guide wire insertion mechanism (5) is used to insert a guide wire into the inside of the effusion through the puncture needle (1).

2. The automated puncture guidewire device according to claim 1, characterized in that: The suction mechanism (3) comprises a syringe (301), a piston (302), a push rod (303), a coil spring (304) and a fixed block (305); the end of the syringe (301) is connected to the connector (2), the piston (302) slides in contact with the inner wall of the syringe (301), the two ends of the push rod (303) are respectively connected to the piston (302) and the fixed block (305), the coil spring (304) is sleeved on the push rod (303) and the two ends thereof are respectively connected to the outer wall of the syringe (301) and the fixed block (305).

3. The automated puncture guidewire device according to claim 2, characterized in that: The buffer mechanism (4) comprises a sealed cylinder (401), a slider (402) and a movable rod (403); the end of the sealed cylinder (401) is connected to the syringe (301), and the two ends of the movable rod (403) are respectively connected to the slider (402) and the fixed block (305); the slider (402) is located inside the sealed cylinder (401).

4. The automated puncture guidewire device according to claim 3, characterized in that: The number of the buffer mechanisms (4) is two.

5. The automated puncture guidewire device according to claim 4, characterized in that: High-viscosity lubricating grease (404) is provided inside the sealed cylinder (401).

6. The automated puncture guidewire device according to claim 2, characterized in that: The guide wire insertion mechanism (5) comprises a wire threading tube (501), a fixed housing (502), a second rotating wheel (503), a second rotating shaft (504), a first rotating wheel (505), a first rotating shaft (506), a speed increasing transmission mechanism (6) and a spring mechanism (7); a wire threading hole (9) is provided in the push rod (303), a second wire threading hole (10) is provided in the fixed block (305), the first wire threading hole (9) and the second wire threading hole (10) are aligned and located on the same horizontal straight line, one end of the wire threading tube (501) is connected to the connector (2), and the other end of the wire threading tube (501) is located at the first wire threading hole (9). The fixed housing (502) is connected to the fixed block (305), the two ends of the second rotating shaft (504) are respectively connected to the two opposite side walls of the fixed housing (502), the second rotating wheel (503) is fixedly sleeved on the second rotating shaft (504), the end of the first rotating shaft (506) is connected to the side wall of the fixed housing (502), the first rotating wheel (505) is fixedly sleeved on the first rotating shaft (506), the spring mechanism (7) is fixedly connected to the side wall of the fixed housing (502), and the two ends of the speed increasing transmission mechanism (6) are respectively connected to the first rotating shaft (506) and the spring mechanism (7).

7. The automated puncture guidewire device according to claim 6, characterized in that: The clockwork mechanism (7) comprises a fixed box (701), a torsion spring sheet (702) and a third rotating shaft (703); the fixed box (701) is fixedly connected to the side wall of the fixed housing (502), the third rotating shaft (703) passes through the fixed box (701), and the two ends of the torsion spring sheet (702) are respectively connected to the fixed box (701) and the third rotating shaft (703).

8. The automated puncture guidewire device according to claim 7, characterized in that: The speed increasing transmission mechanism (6) comprises a large gear 1 (601), a rotating shaft 4 (602), a small gear 1 (603), a large gear 2 (604) and a small gear 2 (605); the end of the rotating shaft 4 (602) is rotatably connected to the side wall of the fixed housing (502); the large gear 1 (601) is fixedly sleeved on the rotating shaft 3 (703); the small gear 1 (603) and the large gear 2 (604) are both fixedly sleeved on the rotating shaft 4 (602); the small gear 2 (605) is fixedly sleeved on the rotating shaft 1 (506); the large gear 1 (601) and the small gear 1 (603) are meshed; the large gear 2 (604) and the small gear 2 (605) are meshed.

9. The automated puncture guidewire device according to claim 8, characterized in that: The third rotating shaft (703) is also provided with a limiting mechanism (8), and the limiting mechanism (8) includes a limiting ratchet (801) and a pawl (802). The limiting ratchet (801) is fixedly sleeved on the third rotating shaft (703), and the pawl (802) is hinged to the fixed housing (502).

10. The automated puncture guidewire device according to claim 9, characterized in that: A clamping ring (11) is provided on the end of the torsion spring sheet (702) away from the rotating shaft three (703), a clamping groove (12) is provided on the fixing box (701), and the clamping ring (11) is located in the clamping groove (12).

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