Intravascular adjustable ultrasonic real-time navigation TIPS puncture instrument

Abstract

The invention discloses an intravascular adjustable ultrasonic real-time navigation TIPS puncture instrument, and relates to the technical field of medical devices, the intravascular adjustable ultrasonic real-time navigation TIPS puncture instrument comprises a catheter sheath, a core-through needle catheter, a hollow core-through needle and a solid core-through needle; the core-through needle catheter penetrates through the interior of the catheter sheath; an operating handle is arranged at one end of the through core needle catheter, a traction mechanism is installed on the operating handle, and a pull wire is arranged in the catheter sheath. Real-time ultrasonic images are obtained through the ultrasonic probe, so that an operator can clearly see a needle point path, and key organs such as hepatic artery, bile duct and gall bladder are effectively avoided. The bending-adjustable puncture needle provides the capability of real-time correction in an operation, can easily cope with complex anatomical variation, can keep certain rigidity through the hardness adjusting chain after bending adjustment, improves the penetrating power of the puncture needle, prevents unpredictable mechanical deformation during liver cirrhosis liver puncture, enhances the controllability after bending adjustment, and improves the safety of liver cirrhosis. And accurate execution of the preset angle is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an intravascular adjustable ultrasound real-time navigation TIPS puncture instrument. BACKGROUND

[0002] TIPS surgery requires doctors to access the neck vein, establish a shunt channel between the hepatic vein and the portal vein, and reduce the portal vein pressure. The most critical and dangerous step is to puncture the intrahepatic portal vein. The traditional method mainly faces two challenges: 1. Highly dependent on experience and spatial imagination: doctors cannot directly see the portal vein during the operation, like "tunneling on both sides of the mountain", mainly relying on preoperative CT images and personal spatial imagination for "blind puncture". This leads to poor stability in the puncture process, which may require repeated attempts (an average of 5-6 times), not only prolonging the operation time, but also increasing the risk of serious complications such as liver laceration and abdominal bleeding.

[0003] 2. High technical barriers, difficult to promote: Due to the extremely complex operation, TIPS is listed as one of the most complex interventional surgeries, with extremely high technical requirements for the operator, making the technology only available in a few large medical centers for a long time, which restricts its popularization.

[0004] Although various innovative TIPS puncture systems have made significant progress, there are still shortcomings and deficiencies, such as: puncture precision and success rate depend on the experience of the doctor, puncture angle and path planning highly depend on the doctor's hand feeling, the first puncture failure rate is high, the traditional method is similar to "blind puncture", and it is difficult to accurately respond to complex vascular variations. The puncture needle has poor adaptability, and the fixed bending angle of the standard puncture needle is difficult to adapt to the changing individual vascular anatomy. In order to realize the adjustable bending function, the rigidity and penetration of the puncture needle may not be as good as the standard puncture needle. When puncturing a cirrhotic liver, there may be a risk of insufficient force or poor controllability, which may cause unpredictable mechanical deformation of the puncture needle, affecting the accurate execution of the preset angle. SUMMARY

[0005] The purpose of the present application is to provide an intravascular adjustable ultrasound real-time navigation TIPS puncture instrument, which can solve the problems of the traditional method being similar to "blind puncture" and being difficult to accurately respond to complex vascular variations, and the adjustable bending puncture needle having a risk of insufficient force or poor controllability when puncturing a cirrhotic liver, which may cause unpredictable mechanical deformation of the puncture needle.

[0006] To solve the above technical problems, the technical scheme adopted by the present application is as follows: The intravascular adjustable ultrasound real-time navigation TIPS puncture instrument comprises a catheter sheath, a core needle catheter, a hollow core needle and a solid core needle. The core needle catheter penetrates the inside of the catheter sheath; One end of the core needle catheter is provided with an operating handle, and a pulling mechanism is installed on the operating handle. A pull wire is provided inside the catheter sheath. One end of the pull wire is fixed to the pulling mechanism, and the other end is fixed to the puncture end of the core needle catheter. At least three sets of hardness adjustment chains are embedded between the inner and outer walls of the through-core needle guide. Each set of hardness adjustment chains includes multiple sets of individual chain segments. The multiple sets of individual chain segments are sequentially connected by a joint assembly, which is electrically driven to lock and release. The hollow core needle penetrates the interior of the core needle conduit, and an ultrasonic probe is fixedly installed inside the puncture end of the hollow core needle. The solid core needle penetrates the interior of the hollow core needle.

[0007] Preferably, the joint assembly includes a joint ball and a joint socket, which are respectively fixedly installed at both ends of the single link. The joint balls on two adjacent sets of single links are embedded in the interior of the joint socket and can rotate in all directions. An electrically controlled locking assembly is provided between the joint ball and the joint socket.

[0008] Preferably, the electrically controlled locking assembly includes an electromagnetic plate, which is fixedly installed on the inner wall of the joint socket; The surface of the articular ball has multiple sets of openings, the opening ends of which are all located inside the joint socket. An elastic band is fixedly connected inside the opening, and a metal shaft is slidably connected inside the opening. One end of the elastic band is fixed to one end of the metal shaft. A power supply component is connected between the electromagnetic plates inside the multiple sets of joint sockets, and the metal shaft can be attracted by the electromagnetic plates after being energized.

[0009] Preferably, a side groove is formed on one end face of the metal shaft near the electromagnetic plate, and a rubber ring is fixedly connected inside the side groove; The thickness of the rubber ring is greater than the height of the side groove.

[0010] Preferably, the end face of the metal shaft near the electromagnetic plate is curved, and its shape matches the inner wall of the electromagnetic plate.

[0011] Preferably, the power supply component includes a wire, on which multiple sets of series links are connected in series, and each set of series links is connected in series with multiple sets of individual chain links in the same plane; The wire has a conductive wire inside, and the connecting ring has a connecting wire inside, and the conductive wire and the connecting wire are electrically connected. The connecting wire is connected to multiple component flow wires, and the connecting wire is connected to the electromagnetic plates on multiple individual chain segments through the multiple component flow wires.

[0012] Preferably, the surface of the hollow needle is provided with a serrated portion 10 mm before the puncture end.

[0013] Preferably, a plurality of steel wires are provided between the inner wall and the outer wall of the catheter sheath.

[0014] Preferably, multiple sets of pull wires are provided inside the catheter sheath, and the multiple sets of pull wires are distributed in a circumferential manner.

[0015] Preferably, the pulling mechanism includes multiple sets of electric rollers, each set of electric rollers is mounted on an operating handle, and one end of each set of pull wires is fixedly connected to the multiple sets of electric rollers.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: By acquiring real-time ultrasound images through an ultrasound probe, the surgeon can clearly "see" the needle tip path, effectively avoiding critical organs such as the hepatic artery, bile duct, and gallbladder. This greatly reduces the incidence of serious or even fatal complications such as massive intraoperative abdominal hemorrhage and bile duct injury, directly ensuring the patient's life and surgical safety.

[0017] Adjustable bendable puncture needles provide the ability to make real-time corrections during surgery, easily handle complex anatomical variations, and after bending, the puncture needle can maintain a certain rigidity through the stiffness adjustment chain, improve the penetration power of the puncture needle, prevent unpredictable mechanical deformation when puncturing cirrhotic livers, enhance the controllability after bending, and ensure the precise execution of the preset angle. Attached Figure Description

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

[0019] Figure 1 This is a schematic diagram of the intravascular adjustable ultrasound real-time navigation TIPS puncture device of the present invention. Figure 2 This is a schematic diagram of the core needle catheter structure of the adjustable ultrasound real-time navigation TIPS puncture device of the present invention. Figure 3 This invention relates to the adjustable ultrasound-guided real-time navigation TIPS puncture device. Figure 1 Enlarged view at point A in the middle. Figure 4 This is a magnified cross-sectional view of the hollow core needle of the adjustable ultrasound-guided real-time TIPS puncture instrument of the present invention. Figure 5 This is a structural diagram of the stiffness adjustment chain of the adjustable ultrasound real-time navigation TIPS puncture instrument of the present invention. Figure 6 This is a structural diagram of a single chain segment of the intravascular adjustable ultrasound real-time navigation TIPS puncture device of the present invention. Figure 7 This is a magnified cross-sectional view of the core needle catheter of the adjustable ultrasound-guided real-time navigation TIPS puncture device of the present invention. Figure 8 This is a partial cross-sectional enlarged view of the stiffness adjustment chain of the adjustable ultrasound real-time navigation TIPS puncture instrument of the present invention. Figure 9 This invention relates to the adjustable ultrasound-guided real-time navigation TIPS puncture device. Figure 8 Enlarged view at point B in the middle. Figure 10 This is a tandem cross-sectional view of the adjustable ultrasound real-time navigation TIPS puncture device of the present invention. Figure 11 This is a cross-sectional view of the operating handle of the intravascular adjustable ultrasound real-time navigation TIPS puncture instrument of the present invention.

[0020] In the diagram: 10, catheter sheath; 11, steel wire; 20, core needle guide tube; 21, hardness adjustment chain; 211, single link; 212, joint ball; 2121, opening; 2122, elastic band; 2123, metal shaft; 21231, side groove; 2124, rubber ring; 213, joint socket; 2131, electromagnetic plate; 214, connecting ring; 2141, connecting wire; 2142, shunt wire; 215, wire; 2151, conductive wire; 22, operating handle; 30, hollow core needle; 31, serrated part; 32, ultrasonic probe; 40, solid core needle; 50, pull wire; 60, electric roller. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example: Figures 1-4As shown, this invention provides an adjustable ultrasound-guided real-time navigation TIPS puncture device, comprising a four-layer structure from the outside in: a catheter sheath 10, a core needle catheter 20, a hollow core needle 30, and a solid core needle 40. The solid core needle 40, located in the innermost layer, is a long, thin, and sharp needle used to complete the final puncture. The middle inner layer is the hollow core needle 30, whose surface 10mm from the puncture end has a serrated portion 31. The serrated portion 31 roughens the needle tip surface to increase ultrasound reflection, making the needle tip easier to identify in ultrasound images, especially during large-angle or deep punctures, which helps to accurately locate the needle tip and reduce operational risks. An ultrasound probe 32 is fixedly installed 10mm inside the puncture end of the hollow core needle 30. The ultrasound probe 32 is a phased array probe, composed of multiple crystals arranged in an array, capable of 90° fan-shaped scanning, penetrating to a depth of 15cm, and supporting Doppler blood flow monitoring and three-dimensional fusion imaging.

[0023] Specifically, the transducers within the ultrasound probe 32 are arranged in a linear array, and ultrasound waves are emitted forward or laterally along a fan-shaped plane along the long axis of the endoscope, generating a fan-shaped longitudinal section image. Under the guidance of real-time ultrasound, the physician extends the puncture needle with a cannula from the cannula and performs the puncture under the guidance of real-time IVUS dual-plane view. The software tracks the needle tip in real time, accurately inserting it into the target portal vein branch.

[0024] like Figure 2 As shown, the middle outer layer is a core needle catheter 20, which is a curved metal tube with a specific angle at the front end and can be operated by an external handle to achieve controllable bending of the distal end of the sheath. The bending angle is the key to directional puncture.

[0025] like Figure 3 As shown, the outermost layer is the catheter sheath 10. Several steel wires 11 are provided between the inner and outer walls of the catheter sheath 10 to increase its bending resistance and prevent deformation when bending.

[0026] like Figure 11 As shown, one end of the core needle catheter 20 is provided with an operating handle 22, and a traction mechanism is installed on the operating handle 22. The catheter sheath 10 is provided with multiple sets of pull wires 50 arranged in a circular pattern. One end of the multiple sets of pull wires 50 is fixed to the traction mechanism, and the other end is fixed to the puncture end of the core needle catheter 20. The doctor can pull or release the pull wires 50 by operating the traction mechanism, and the core needle catheter 20 will bend by pulling the pull wires 50.

[0027] Specifically, the traction mechanism includes electric rollers 60, with multiple sets of electric rollers 60 mounted on the operating handle 22. One end of multiple sets of pull wires 50 is fixedly connected to each set of electric rollers 60. Each set of electric rollers 60 is driven by an independent micro-motor, which can rotate to wind up the pull wire 50, thereby pulling the distal end of the catheter 20 to bend. By pulling multiple different sets of pull wires 50, the catheter 20 can be flexibly bent in multiple directions, enhancing operational flexibility. After releasing the pull wires 50, the distal end of the catheter 20 springs back to its original shape. This solves the pain point of traditional fixed-angle puncture needles and cumbersome adjustments. Doctors can adjust the puncture angle in real time according to the intraoperative situation to accurately address complex vascular variations without repeatedly withdrawing instruments, greatly improving operational efficiency and safety.

[0028] like Figure 3 , Figure 5 Combination Figure 7 As shown, three sets of stiffness adjustment chains 21 are embedded between the inner and outer walls of the core needle catheter 20. These chains are primarily made of titanium alloy, possessing excellent structural strength suitable for medical applications. The three sets of stiffness adjustment chains 21 act as the skeleton of the core needle catheter 20, effectively improving its structural strength and tear resistance. Each set of stiffness adjustment chains 21 includes multiple individual chain segments 211, which are sequentially connected by a joint assembly. The joint assembly is electrically controlled to lock and release. By controlling the locking and releasing of the joint assembly, the stiffness of each set of stiffness adjustment chains 21 can be controlled. Controlling the stiffness of the three sets of stiffness adjustment chains 21 indirectly controls the stiffness of the core needle catheter 20 after bending, facilitating puncture of cirrhotic livers.

[0029] Specifically, such as Figure 6 and Figure 8 As shown, the joint assembly includes a joint ball 212 and a joint socket 213. The joint ball 212 and the joint socket 213 are integrally formed on both ends of the single link 211. The joint balls 212 on two adjacent sets of single links 211 are embedded in the interior of the joint socket 213 and can rotate in all directions to ensure that the bending of the through needle guide 20 in any direction is not affected.

[0030] An electrically controlled locking assembly is provided between the articular ball 212 and the articular socket 213. The electrically controlled locking assembly includes an electromagnetic plate 2131, which is fixedly installed on the inner wall of the articular socket 213 and its shape matches the shape of the articular ball 212, allowing the articular ball 212 to rotate in contact with the electromagnetic plate 2131.

[0031] like Figure 8 and Figure 9As shown, the surface of the joint ball 212 has multiple sets of openings 2121. The opening ends of the multiple sets of openings 2121 are all located inside the joint socket 213. An elastic band 2122 is fixedly connected inside the opening 2121. A metal shaft 2123 is slidably connected inside the opening 2121. One end of the elastic band 2122 is fixed to one end of the metal shaft 2123. A power supply component is connected between the electromagnetic plates 2131 inside the multiple sets of joint sockets 213. The metal shaft 2123 is made of iron or nickel that can be attracted by a magnet and can be attracted by the electromagnetic plates 2131 after being energized.

[0032] In the initial state, the metal shaft 2123 is hidden inside the opening 2121 and cannot slide out under the pull of the elastic band 2122. At this time, the rotation of the articular ball 212 inside the joint socket 213 is not hindered. During TIPS puncture, if a cirrhotic liver is encountered, especially after the puncture needle is bent, its rigidity and penetrating power are significantly insufficient, and the puncture needle may undergo unpredictable mechanical deformation. At this time, by energizing the electromagnetic plate 2131, it generates its own magnetism to attract the metal shaft 2123, causing the metal shafts 2123 inside multiple openings 2121 to slide out simultaneously and stick tightly to the electromagnetic plate 2131. The attraction between the two prevents the rotation of the articular ball 212 inside the joint socket 213, thereby locking the articular ball 212 inside the joint socket 213, and thus locking the joint of the stiffness adjustment chain 21 so that it cannot rotate. At this time, using three sets of hardness adjustment chains 21 as a skeleton can provide a certain rigidity to the through needle guide tube 20, so that it will not easily undergo mechanical deformation after bending, thus ensuring its penetration force after bending.

[0033] Among them, a side groove 21231 is provided on one end face of the metal shaft 2123 near the electromagnetic plate 2131, and a rubber ring 2124 is fixedly connected inside the side groove 21231. The rubber ring 2124 can significantly increase the friction between the contact surface of the metal shaft 2123 and the electromagnetic plate 2131, thereby improving the stability of joint locking.

[0034] It is worth noting that the thickness of the rubber ring 2124 is greater than the height of the side groove 21231. During the process of the electromagnetic plate 2131 adsorbing the metal shaft 2123, the rubber ring 2124 will first come into contact with the electromagnetic plate 2131, and then be compressed under the action of adsorption force, reducing its thickness until the metal shaft 2123 and the electromagnetic plate 2131 are tightly attached. At this time, the rubber ring 2124 is completely compressed and hidden inside the side groove 21231. In this way, the rubber ring 2124 can be tightly attached to the electromagnetic plate 2131 under the action of its own elastic force, further increasing the friction and thus further improving the stability of the joint locking.

[0035] In addition, the end face of the metal shaft 2123 near the electromagnetic plate 2131 is curved, and its shape matches the inner wall of the electromagnetic plate 2131. The two can fit tightly together, so that there is sufficient adsorption and bonding area between the metal shaft 2123 and the electromagnetic plate 2131, which further ensures the structural strength after the joint is locked.

[0036] like Figure 6 , Figure 7 and Figure 10 As shown, the power supply component includes a wire 215, with a conductive wire 2151 inside the wire 215. One end of the wire 215 extends to the operating handle 22 and is connected to the power source. Multiple sets of series rings 214 are connected in series on the wire 215. Each series ring 214 has a connecting wire 2141 inside. The conductive wire 2151 is electrically connected to the connecting wire 2141, allowing the conductive wire 2151 to simultaneously conduct electricity to the connecting wires 2141 inside the multiple sets of series rings 214.

[0037] Each set of interconnecting rings 214 connects multiple sets of individual chain links 211 in the same plane. The three sets of hardness adjustment chains 21 are interconnected and supported by multiple sets of interconnecting rings 214, which ensures the stability of the position of the three sets of hardness adjustment chains 21, prevents the three sets of hardness adjustment chains 21 from shifting inside the core needle guide tube 20, and effectively improves the structural strength of the skeleton.

[0038] Three sets of current-carrying wires 2142 are electrically connected to the connecting wire 2141. The connecting wire 2141 is electrically connected to the electromagnetic plates 2131 on the three sets of individual link 211 through the three sets of current-carrying wires 2142. That is, the connecting wire 2141 can energize the electromagnetic plates 2131 on the three sets of individual link 211 in the same plane through the three sets of current-carrying wires 2142, so that the three sets of electromagnetic plates 2131 generate magnetism at the same time.

[0039] In use, the adjustable puncture needle provides the ability to make real-time corrections during the procedure, easily handling complex anatomical variations. After the puncture needle is bent, the power switch connected to wire 215 is turned on. Power is supplied to each electromagnetic plate 2131 through the power supply component, causing the electromagnetic plate 2131 to become magnetic. At this time, the electromagnetic plate 2131 will simultaneously attract multiple sets of metal shafts 2123, causing the multiple sets of metal shafts 2123 to extend and adhere tightly to the electromagnetic plate 2131, preventing the joint ball 212 from rotating inside the joint socket 213, thus locking the joint. At this time, each stiffness adjustment chain 21 can act as a skeleton for the bent puncture needle, maintaining the rigidity of the bent puncture needle, ensuring its penetration power, facilitating precise puncture control, and adapting to puncture of cirrhotic livers. After the puncture is completed, the power is turned off, the electromagnetic plate 2131 loses its magnetism, and the elastic band 2122 will pull the metal shafts 2123 back into the opening 2121, relaxing the joint and restoring the flexibility of the puncture needle.

[0040] This invention uses an ultrasound probe 32 to acquire real-time ultrasound images, allowing the surgeon to clearly "see" the needle tip path and effectively avoid critical organs such as the hepatic artery, bile duct, and gallbladder. This significantly reduces the incidence of serious or even fatal complications such as massive intraoperative abdominal hemorrhage and bile duct injury, directly ensuring the patient's life and surgical safety.

[0041] The adjustable bendable puncture needle provides the ability to make real-time corrections during the procedure, easily cope with complex anatomical variations, and after bending, the puncture needle can maintain a certain rigidity through the stiffness adjustment chain 21, which improves the penetration power of the puncture needle, prevents unpredictable mechanical deformation when puncturing cirrhotic liver, enhances the controllability after bending, and ensures the precise execution of the preset angle.

[0042] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An intravascular adjustable ultrasound-guided real-time TIPS puncture instrument, characterized in that, include: duct sheath; A core needle catheter that penetrates the interior of a catheter sheath; One end of the core needle catheter is provided with an operating handle, and a pulling mechanism is installed on the operating handle. A pull wire is provided inside the catheter sheath. One end of the pull wire is fixed to the pulling mechanism, and the other end is fixed to the puncture end of the core needle catheter. At least three sets of hardness adjustment chains are embedded between the inner and outer walls of the through-core needle guide. Each set of hardness adjustment chains includes multiple sets of individual chain segments. The multiple sets of individual chain segments are sequentially connected by a joint assembly, which is electrically driven to lock and release. A hollow core needle, wherein the hollow core needle penetrates the interior of the core needle conduit, and an ultrasonic probe is fixedly installed inside the puncture end of the hollow core needle; A solid through-hole needle, wherein the solid through-hole needle penetrates the interior of a hollow through-hole needle.

2. The intravascular adjustable ultrasound-guided real-time TIPS puncture device as described in claim 1, characterized in that, The joint assembly includes a joint ball and a joint socket. The joint ball and the joint socket are respectively fixedly installed at both ends of the single link. The joint balls on two adjacent sets of single links are embedded in the interior of the joint socket and can rotate in all directions. An electrically controlled locking assembly is provided between the joint ball and the joint socket.

3. The intravascular adjustable ultrasound-guided real-time TIPS puncture device as described in claim 2, characterized in that, The electrically controlled locking assembly includes an electromagnetic plate, which is fixedly installed on the inner wall of the joint socket; The surface of the articular ball has multiple sets of openings, the opening ends of which are all located inside the joint socket. An elastic band is fixedly connected inside the opening, and a metal shaft is slidably connected inside the opening. One end of the elastic band is fixed to one end of the metal shaft. A power supply component is connected between the electromagnetic plates inside the multiple sets of joint sockets, and the metal shaft can be attracted by the electromagnetic plates after being energized.

4. The intravascular adjustable ultrasound-guided real-time TIPS puncture device as described in claim 3, characterized in that, A side groove is provided on one end face of the metal shaft near the electromagnetic plate, and a rubber ring is fixedly connected inside the side groove. The thickness of the rubber ring is greater than the height of the side groove.

5. The intravascular adjustable ultrasound-guided real-time TIPS puncture device as described in claim 4, characterized in that, The end face of the metal shaft near the electromagnetic plate is curved, and its shape matches the inner wall of the electromagnetic plate.

6. The intravascular adjustable ultrasound-guided real-time TIPS puncture device as described in claim 3, characterized in that, The power supply component includes a wire, on which multiple sets of series links are connected in series, and each set of series links is connected in series with multiple sets of individual chain links in the same plane. The wire has a conductive wire inside, and the connecting ring has a connecting wire inside, and the conductive wire and the connecting wire are electrically connected. The connecting wire is connected to multiple component flow wires, and the connecting wire is connected to the electromagnetic plates on multiple individual chain segments through the multiple component flow wires.

7. The intravascular adjustable ultrasound-guided real-time TIPS puncture device as described in claim 1, characterized in that, The surface of the hollow needle is provided with a serrated section 10 mm in front of the puncture end.

8. The intravascular adjustable ultrasound-guided real-time TIPS puncture device as described in claim 1, characterized in that, Several steel wires are provided between the inner and outer walls of the catheter sheath.

9. The intravascular adjustable ultrasound-guided real-time TIPS puncture device as described in claim 1, characterized in that, The pull wires are arranged in multiple sets inside the catheter sheath, and the multiple sets of pull wires are distributed in a circumferential manner.

10. The intravascular adjustable ultrasound-guided real-time TIPS puncture device as described in claim 9, characterized in that, The pulling mechanism includes multiple sets of electric rollers, each set of electric rollers is mounted on an operating handle, and one end of each set of pull wires is fixedly connected to the multiple sets of electric rollers.

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