Radiofrequency puncture device and system

Abstract

The present application discloses a radio frequency puncture device and system, which relates to medical device technology, including: a puncture guidewire, which is a two-turn semi-vortex wire structure, including a spring body and a mandrel, the hardness of the mandrel head end gradually changes from soft to hard from the puncture tip to the tube body, and the tail end of the puncture guidewire is provided with a radio frequency conductive contact segment; a puncture guidewire handle, connected to a radio frequency energy puncture instrument, including a guidewire fixed shaft, and a radio frequency energy conduction shaft is coaxially provided at the front end of the guidewire fixed shaft to connect with the radio frequency conductive contact segment of the puncture guidewire through the radio frequency energy conduction shaft; a radio frequency energy puncture instrument, connected to the radio frequency tail wire of the puncture guidewire handle, to provide radio frequency energy. The device of the present application can perform puncture through radio frequency energy, and does not require the operator to vigorously operate the puncture needle, reducing the risk of cardiac perforation during the operation and improving the efficiency of the puncture operation.

Description

Technical Field

[0001] The present application relates to the field of medical device technology, and in particular to a radio frequency puncture device and system. Background Art

[0002] The heart of the type 2 includes a right ventricle, a right atrium, a left ventricle and a left atrium. The right atrium is connected to the superior venous cavity and the inferior venous cavity. The tricuspid valve separates the right atrium from the right ventricle, and the mitral valve separates the left atrium from the left ventricle. The right atrium is separated from the left atrium by the interatrial septum. The left atrium is the most difficult to enter during surgery. The most common method to enter the left atrium is through puncture of the interatrial septum. Under normal circumstances, the percutaneous catheter cannot go directly into the left atrium in an antegrade manner. Although it can go retrograde through the two turns of the aortic valve and the mitral valve to enter the left atrium, the catheter operation is very complicated. Puncture of the atrial septum allows the catheter to pass through the atrial septum through the right atrium and directly reach the left atrium. In the early years, atrial septal puncture was mainly used for left heart catheter examination in patients with mitral or aortic valve stenosis. In the past 20 years, with the development of interventional treatment of cardiovascular diseases, especially percutaneous mitral valvuloplasty and radiofrequency ablation, especially the vigorous development of radiofrequency ablation for atrial fibrillation, the technology of atrial septal puncture has begun to be increasingly valued by electrophysiologists and has become one of the techniques that electrophysiologists must master.

[0003] Atrial septal puncture is a minimally invasive surgery performed under the guidance of imaging equipment. In electrophysiological surgery, atrial septal puncture is a common and basic operation. Through the guide sheath, guide wire and puncture needle, it is used to establish a pathway from the right atrium to the left atrium, thereby completing the ablation of the left atrium and the treatment of arrhythmias and structural heart diseases in the left ventricle. Under normal circumstances, the percutaneous catheter cannot directly reach the left atrium in an antegrade manner. Although it can enter the left atrium in a retrograde manner through the two turns of the aortic valve and mitral valve, the catheter operation is very troublesome. Puncturing the atrial septum allows the catheter to pass from the right atrium to the left atrium for left heart system inspection and treatment, simplifying the operation. Left atrial interventional surgery is currently clinically It is widely used in bedside procedures, such as left atrial appendage occlusion, pulmonary vein isolation and other atrial fibrillation electrophysiological procedures, as well as structural heart disease surgeries such as mitral valve replacement. In clinical practice, there are three common methods for atrial septal puncture: 1) Under the assistance of X-ray angiography, the anatomical position of the oval fossa is found through the puncture needle assembly, 2) Under the assistance of ICE intracavitary ultrasound, 3) Under the assistance of a three-dimensional electroanatomical mapping system, the position of the oval fossa is found based on the potential characteristics through the ablation catheter assembly. Methods (1) and (2) are both based on the anatomical characteristics of the oval fossa, which is composed of a thin double layer of endocardium. Through the puncture assembly, a physical tent shape is formed near the oval fossa to determine the puncture position. Method (3) realizes a radiation-free and ultrasound-free surgical environment. It is based on the anatomical characteristics of the oval fossa. Because the amount of myocardium is small, the recorded voltage will be smaller than other surrounding heart parts. Therefore, the position of the oval fossa can be mapped by an ablation catheter. The above three clinical puncture methods usually cause the following problems:

[0004] Although X-ray angiography is a common clinical method, doctors are exposed to radiation from X-rays.

[0005] Ultrasound imaging assistance is established through intracavitary ultrasound catheters. Expensive ultrasound catheters greatly increase the cost of clinical treatment and are not suitable for large-scale promotion.

[0006] The mechanical puncture device is inserted into the right atrium through a guide sheath, dilator tube and guidewire combination. When the dilator guidewire reaches the oval fossa, the guidewire needs to be withdrawn and replaced with a puncture needle to complete the atrial septal puncture. Because the operation is complicated, the surgical operation time is prolonged and the cost of the operation is increased.

[0007] During the actual puncture process, some patients have special heart structures, such as atrial septal fibrosis, oval fossa tissue thickening, tissue tumorization, etc. The traditional mechanical puncture needle is prone to surgical complications such as heart perforation and pericardial tamponade under the doctor's vigorous operation, which ultimately leads to puncture failure.

[0008] When using an ablation mapping catheter to guide three-dimensional anatomical mapping of the heart, although X-rays and ultrasound catheters are not required, due to the order of three-dimensional modeling, the operator needs to first use the mapping catheter to complete the three-dimensional modeling of the heart, and then the puncture needle performs puncture based on the electroanatomical positioning that the catheter has modeled. The puncture needle cannot be positioned in real time in the three-dimensional model. Due to breathing, heartbeat, and body movement, the position of the oval fossa located by the catheter and the real-time puncture needle tip will have a displacement difference, which will cause safety risks in the operation. The displacement of the mapping model will cause puncture failure and myocardial damage.

[0009] The atrial septal puncture surgery is performed by the surgeon using surgical instruments such as the puncture needle, sheath, guide wire, etc. It is not convenient to determine the puncture point, puncture direction and puncture force during the operation, and the puncture needle cannot be controlled accurately and stably. In the actual puncture process, some people have special heart structures, such as atrial septal fibrosis, oval fossa tissue thickening, tissue tumorization, etc. The traditional mechanical puncture needle is prone to surgical complications such as heart perforation and pericardial tamponade under the doctor's strong operation, which ultimately leads to puncture failure.

[0010] In response to the above problems, for example, patent 202322381180.X proposes a radiofrequency puncture system, which includes a puncture device, a puncture needle, a connector and a radiofrequency device. Along the axial direction of the puncture device, the puncture needle is inserted into the puncture device, and the connector is clamped at one end close to the tail of the puncture needle, and the connector is conductively connected to the puncture needle, and the output end of the radiofrequency device is conductively connected to the puncture needle, thereby realizing the conductive connection between the output end of the radiofrequency device and the puncture needle. Moreover, due to the clamping connection between the connector and the puncture needle, the contact area at the clamping connection position is large, and the connection structure is stable, which is conducive to improving the stability of the electrical connection between the output end of the radiofrequency device and the puncture needle, thereby improving the stability and effectiveness of the puncture needle for atrial septal puncture. By using radiofrequency energy for atrial septal puncture, the operator does not need to operate vigorously to easily complete the puncture, and the process is safe and effective.

[0011] Although the above method can solve the problem that traditional mechanical puncture requires doctors to operate vigorously and there are safety risks in the process, it still requires manual operation by the surgeon. The stability during manual puncture is not high, and the surgical effect is easily affected by factors such as surgeon fatigue. There is still the problem of difficulty in determining the location of the oval fossa. Summary of the invention

[0012] The embodiments of the present application provide a radiofrequency puncture device and system, which use radiofrequency energy to perform puncture, do not require the operator to operate the puncture needle vigorously, reduce the risk of heart perforation during the operation, and improve the efficiency of the puncture operation.

[0013] The present application provides a radiofrequency puncture device, comprising:

[0014] The puncture guidewire is a two-turn semi-vortex wire structure, including a spring body and a core shaft, the two ends of the core shaft are fixed to the head and tail of the spring body, the hardness of the head end of the core shaft gradually changes from soft to hard from the puncture tip to the tube body, and the tail end of the puncture guidewire 10 is provided with a radio frequency conductive contact section, which is used to connect to the radio frequency energy conduction structure in the puncture guidewire handle to achieve radio frequency energy conduction;

[0015] The puncture guidewire handle is connected to the radio frequency energy puncture instrument, and includes a guidewire fixing shaft 2, and a radio frequency energy conduction shaft 4 is coaxially arranged at the front end of the guidewire fixing shaft 2 to connect with the radio frequency conductive contact section of the puncture guidewire through the radio frequency energy conduction shaft 4;

[0016] A radio frequency energy puncture device is connected to the radio frequency tail line of the puncture guide wire handle to provide radio frequency energy.

[0017] Optionally, a handle push indication segment is further provided at the tail end of the puncture guidewire, and the handle push indication segment is set at a preset distance from the RF conductive contact segment, and the handle push indication segment is used to locate the installation position of the puncture guidewire handle at the tail end of the guidewire.

[0018] Optionally, the tip end of the puncture guide wire is a molten ball structure.

[0019] Optionally, at least two through grooves 5 are provided at the front end of the RF energy conduction shaft 4, and the through grooves 5 are used to squeeze, shrink and clamp the front end of the RF energy conduction shaft 4 in the circumferential direction so that the inner wall of the RF energy conduction shaft 4 fits the puncture guide wire.

[0020] Optionally, the puncture guidewire handle also includes a fixed knob 3, in which an inner cavity 31 is provided, and the inner cavity 31 is flared so as to be connected to the guidewire fixed shaft 2 through the fixed knob 3, and the front end of the RF energy conduction shaft 4 is circumferentially squeezed through the inner cavity 31 to limit the axial displacement of the guidewire and make the inner wall of the RF energy conduction shaft 4 fit the puncture guidewire.

[0021] Optionally, the puncture guidewire handle also includes a handle shell 1, which is a detachable structure. An adaptation structure of the guidewire fixing shaft 2 is arranged in the handle shell 1, and the adaptation structure includes a damping pad fixing groove 13. The guidewire fixing shaft 2 is outer-coated with a damping pad 21, so that after the guidewire fixing shaft 2 is installed in the handle shell 1, the damping pad 21 is embedded in the damping pad fixing groove 13 to limit the axial movement of the guidewire fixing shaft 2.

[0022] Optionally, the adaptation structure also includes front and rear baffles 11, and an annular protrusion 22 is provided on the side of the guide wire fixing shaft 2 to control the total pushing stroke of the guide wire fixing shaft 2 based on the annular protrusion 22, so that the guide wire fixing shaft 2 makes axial displacement within the stroke between the front and rear baffles 11.

[0023] Optionally, a long strip protrusion 23 is axially arranged on the guide wire fixing shaft 2, and the adaptation structure also includes an axial groove structure 14, which is arranged in the handle shell 1, and the long strip protrusion 23 can be slidably embedded in the axial groove structure 14 to lock the circumferential position between the guide wire fixing shaft 2 and the handle shell 1.

[0024] Optionally, the portion of the guidewire fixing shaft 2 exposed outside the handle housing 1 is provided with a guidewire pushing component 24, and the guidewire pushing component 24 can be embedded in an axial control component of the surgical robot to be controlled by the surgical robot.

[0025] The embodiment of the present application further proposes a radiofrequency puncture system, comprising the radiofrequency puncture device as described above, and a surgical robot, wherein the surgical robot is connected to the puncture guidewire handle of the radiofrequency puncture device to perform corresponding surgical actions under control instructions.

[0026] The radiofrequency puncture device of the embodiment of the present application can perform puncture through radiofrequency energy, and does not require the operator to operate the puncture needle vigorously, thereby reducing the risk of cardiac perforation during the operation and improving the efficiency of the puncture operation.

[0027] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0029] Figure 1 The overall structure of the radiofrequency puncture device according to the embodiment of the present application is schematically shown;

[0030] Figure 2 This is a schematic diagram of the structure of the puncture guide wire portion of the radiofrequency puncture device of an embodiment of the present application;

[0031] Figure 3 This is a schematic diagram of the structure of the puncture guide wire handle portion of the radiofrequency puncture device of an embodiment of the present application;

[0032] Figure 4 This is a partial cross-sectional view of the puncture guidewire handle of the radiofrequency puncture device according to an embodiment of the present application;

[0033] Figure 5 This is another structural schematic diagram of the puncture guide wire handle portion of the radiofrequency puncture device according to an embodiment of the present application;

[0034] Figure 6 This is a schematic diagram of the structure of the radio frequency energy puncture device of the embodiment of the present application. DETAILED DESCRIPTION

[0035] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0036] The present application embodiment provides a radiofrequency puncture device, such as Figure 1 As shown, including:

[0037] Puncture guide wire 10, such as Figure 2 As shown, it is a two-turn semi-vortex wire structure, and the guide wire diameter can be 0.035 inches. It includes a spring body and a core shaft 101, and the two ends of the core shaft 101 are fixed to the head and tail of the spring body. The hardness of the head end of the core shaft 101 gradually changes from soft to hard from the puncture tip to the tube body, that is, Figure 2 The core shaft hardness gradient section 102 at the head end of the puncture guide wire 10 changes from soft to hard to facilitate puncture into the oval fossa and positioning in the cardiac cavity. The tail end of the puncture guide wire 10 is provided with a radio frequency conductive contact section 103, which is used to connect to the radio frequency energy conduction structure in the puncture guide wire handle to achieve radio frequency energy conduction.

[0038] In the embodiment of the present application, the guide wire body is configured as a high-strength support mandrel to provide puncture thrust. During the puncture operation, it is not necessary to replace the puncture guide wire 10 with a puncture needle for puncture. The puncture guide wire 10 of the present application has both the guide wire guiding function and the puncture needle puncture function. In some embodiments, the head end of the puncture guide wire 10 is a melt ball structure, including a melt ball puncture head end 105. During the pushing process, the melt ball puncture head end 105 can avoid damage to the inner wall of the expansion tube or the inner wall of the heart, while ensuring the hardness of the puncture head end, preventing the head from twisting and deforming during the puncture process, and improving the puncture effect.

[0039] The puncture guidewire handle 20 is connected to the radio frequency energy puncture instrument, and includes a guidewire fixing shaft 2, and a radio frequency energy conduction shaft 4 is coaxially arranged at the front end of the guidewire fixing shaft 2 to connect with the radio frequency conductive contact section of the puncture guidewire through the radio frequency energy conduction shaft 4.

[0040] The radio frequency energy puncture device 30 is connected to the radio frequency tail line of the puncture guide wire handle to provide radio frequency energy.

[0041] The radiofrequency puncture device of the embodiment of the present application can perform puncture through radiofrequency energy, and does not require the operator to operate the puncture needle vigorously, thereby reducing the risk of cardiac perforation during the operation and improving the efficiency of the puncture operation.

[0042] In some embodiments, the tail end of the puncture guidewire is also provided with a handle push indication segment 104, and the handle push indication segment 104 is set at a preset distance from the RF conductive contact segment 103, and the handle push indication segment 104 is used to locate the installation position of the puncture guidewire handle at the tail end of the guidewire. In some specific examples, except for the RF conductive contact segment 103 and the melt ball-shaped puncture head end, other parts of the guidewire body are provided with an insulating coating, and the RF conductive contact segment 103 is used to conduct RF energy with the RF energy conduction structure in the handle, and the handle push indication segment 104 is used to locate the installation position of the detachable handle at the tail end of the guidewire. After the puncture guidewire is installed with the handle, the RF energy conduction structure in the handle is connected to the RF conductive contact segment, and the RF energy is transmitted to the puncture guidewire head end through the handle by the RF puncture instrument.

[0043] In some embodiments, Figure 3 As shown, at least two through grooves 5 are provided at the front end of the radio frequency energy conduction shaft 4. Specifically, the at least two through grooves 5 can be symmetrically arranged. The through grooves 5 are used to squeeze and contract the front end of the radio frequency energy conduction shaft 4 in the circumferential direction so that the inner wall of the radio frequency energy conduction shaft 4 fits the puncture guide wire. In the embodiment of the present application, the through grooves 5 are used to lock and fix the puncture guide wire on the one hand, and on the other hand, increase the contact surface between the radio frequency energy conduction shaft and the puncture guide wire to improve the stability of radio frequency energy conduction.

[0044] In some embodiments, Figure 4 As shown, the puncture guidewire handle also includes a fixed knob 3, and an inner cavity 31 is provided in the fixed knob 3. The inner cavity 31 is flared so as to be connected to the guidewire fixed shaft 2 through the fixed knob 3, and the front end of the RF energy conduction shaft 4 is circumferentially squeezed through the inner cavity 31 to limit the axial displacement of the guidewire and make the inner wall of the RF energy conduction shaft 4 fit the puncture guidewire. In a specific example, as Figure 4 As shown, the fixing knob 3 may also be provided with an internal thread, and the inner cavity 31 is provided in the internal thread, and the cross-sectional diameter of the inner cavity near one end of the thread is larger than the cross-sectional diameter of the inner side, so that the inner cavity 31 is flared. The front end of the guidewire fixing shaft 2 is provided with an external thread adapted to the fixing knob 3, so that the fixing knob 3 can be threadedly connected to the guidewire fixing shaft 2, and the guidewire is fixed to the handle through the fixing knob 3 and the guidewire fixing shaft 2. As the fixing knob 3 is tightened on the guidewire fixing shaft 2, the RF energy conduction shaft 4 enters the inner cavity, and as the fixing knob is tightened, the RF energy conduction shaft 4 moves inward. Under the pressure of the inner cavity wall, the RF energy conduction shaft shrinks and clamps, and the guidewire in the guidewire passage is locked in the RF energy conduction shaft to limit the axial displacement of the guidewire, and at the same time ensure that the electrical conduction between the RF energy conduction shaft and the guidewire is unimpeded, and the tail end of the guidewire fixing shaft 2 is connected to the RF tail line 6 and the guidewire passage 7.

[0045] In some embodiments, Figure 5As shown, the puncture guidewire handle also includes a handle housing 1, and the handle housing 1 is a detachable structure. For example, in some examples, the handle housing 1 may include an upper housing and a lower housing 12. An adapting structure of the guidewire fixing shaft 2 is provided in the handle housing 1, and the adapting structure includes a damping pad fixing groove 13. The guidewire fixing shaft 2 is provided with a damping pad 21 on its outer sleeve, so that after the guidewire fixing shaft 2 is installed in the handle housing 1, the damping pad 21 is embedded in the damping pad fixing groove 13 to limit the axial movement of the guidewire fixing shaft 2. When the guidewire fixing shaft 2 moves axially under the action of the guidewire pushing component, it can ensure smooth sliding with a damping feeling, which is convenient for the operator to perform fine-tuning operations.

[0046] In some embodiments, Figure 5 As shown, the adaptation structure also includes front and rear baffles 11, and an annular protrusion 22 is arranged on the side of the guide wire fixing shaft 2, so as to control the total pushing stroke of the guide wire fixing shaft 2 based on the annular protrusion 22, so that the guide wire fixing shaft 2 makes axial displacement within the stroke between the front and rear baffles 11, so as to avoid the axial movement of the guide wire fixing shaft exceeding the limit value to damage the RF tail wire, affect the RF energy transmission, and cause the operation failure.

[0047] In some embodiments, Figure 5 As shown, the guidewire fixing shaft 2 is axially provided with a long strip protrusion 23, and the adapting structure further includes an axial groove structure 14, which is provided in the handle housing 1, and the long strip protrusion 23 can be slidably embedded in the axial groove structure 14 to lock the circumferential position between the guidewire fixing shaft 2 and the handle housing 1, thereby preventing the guidewire fixing shaft from rotating autonomously and affecting the function. Through the guidewire fixing shaft adapting structure, the guidewire fixing shaft is slidably connected to the handle housing.

[0048] In some embodiments, the portion of the guidewire fixing shaft 2 exposed outside the handle housing 1 is provided with a guidewire pushing component 24, and the guidewire pushing component 24 can be embedded in the axial control component of the surgical robot to be controlled by the surgical robot. Figure 5 As shown, in a specific example, the axial control component of the surgical robot drives the pushing component to perform axial displacement, pushing the guidewire to complete the puncture. For example, in a specific example, a rotating gear 15 is provided outside the handle housing, which meshes with the driving gear of the rotation drive component of the surgical robot to realize the rotation control of the radio frequency puncture guidewire by the surgical robot. In the working state, the puncture guidewire handle is installed on the surgical robot actuator. Through the puncture guidewire handle of the present application, the surgical robot can realize various controls of the guidewire, such as:

[0049] 1. Use the overall axial movement of the surgical robot actuator to control the long-stroke push of the guide wire to meet the long-stroke push requirements of the puncture guide wire entering the human body.

[0050] 2. Use the surgical robot to control the axial movement of the guidewire pushing component, drive the guidewire fixing shaft in the handle housing to make axial displacement, and accurately control the axial pushing of the puncture guidewire to improve the stability of the puncture guidewire during the puncture process.

[0051] 3. The surgical robot drives the rotating gear outside the handle housing to satisfy the rotation control of the puncture guide wire by the surgical robot so as to fine-tune the direction of the puncture guide wire tip.

[0052] Radiofrequency energy puncture device 30, such as Figure 6 As shown, the overall structure of the radio frequency puncture instrument mainly includes the following five parts: UI display 301, radio frequency wire interface 302, negative plate interface 303, radio frequency puncture start button 304, and foot pedal interface 305. The UI display 301 of the radio frequency puncture instrument is used to display the unipolar electrogram of the puncture guide wire in real time. The front panel of the display is respectively provided with radio frequency wire interface 302, foot pedal interface 305 and negative plate interface 303. The radio frequency wire is connected to the radio frequency tail wire at the tail of the puncture guide wire handle. The radio frequency energy is emitted from the radio frequency wire interface of the radio frequency puncture instrument and transmitted to the radio frequency energy conduction shaft through the tail wire connector at the tail end of the puncture guide wire handle. The radio frequency energy conduction shaft transmits the radio frequency energy to the puncture guide wire. The foot pedal interface is used to connect the foot pedal. During the operation, the operator can use the foot pedal to control the output and shutdown of the radio frequency energy. The radio frequency energy puncture instrument 30 is also provided with a radio frequency puncture start button. The operator can also release the radio frequency energy through the start button of the device. The negative plate interface is used to connect the negative plate. The negative plate is attached to the back of the patient and is the signal loop of the radio frequency current.

[0053] The radiofrequency puncture device of the embodiment of the present application uses radiofrequency energy to perform puncture, and does not require the operator to operate the puncture needle vigorously, which can reduce the risk of heart perforation during the operation and improve the efficiency of the puncture operation.

[0054] The radiofrequency puncture device of the embodiment of the present application has a detachable puncture guidewire handle, which is compatible with a remote surgical robot and can complete the puncture operation remotely, solving the radiation effect of X-rays on the operator during traditional puncture. Two axial motion modes are provided for the operator to choose. The large-stroke movement of the puncture guidewire is controlled by the overall axial displacement of the surgical robot actuator, and the push of the puncture guidewire is accurately controlled by the guidewire push component of the puncture handle, making the puncture process more stable, while satisfying the two push modes of large-stroke displacement and high-precision control.

[0055] The radiofrequency puncture device of the embodiment of the present application can observe the changes in the electrogram of the oval fossa injury in real time to identify the position of the oval fossa, solve the safety hazard caused by the position change of the oval fossa during three-dimensional mapping modeling and actual puncture, and at the same time reduce the difficulty of atrial septal puncture surgery and shorten the operator training period.

[0056] The puncture guidewire of the present application has the functions of both a guidewire and a puncture needle. It can serve as a guide for the sheath during the operation, and after reaching the oval fossa, it can also be used as a puncture needle to puncture the atrial septum, thereby improving the efficiency of the operation and reducing the patient's surgical costs.

[0057] The embodiment of the present application further proposes a radiofrequency puncture system, comprising the radiofrequency puncture device as described above, and a surgical robot, wherein the surgical robot is connected to the puncture guidewire handle of the radiofrequency puncture device to perform corresponding surgical actions under control instructions.

[0058] It should be noted that in the various embodiments of the present application, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0059] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0060] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A radiofrequency puncture device, characterized in that: include: The puncture guide wire (10) is a two-turn semi-vortex wire structure, comprising a spring body and a core shaft (101), wherein the two ends of the core shaft (101) are fixed to the head and tail of the spring body, and the hardness of the head end of the core shaft (101) gradually changes from soft to hard from the puncture tip to the tube body, and the tail end of the puncture guide wire (10) is provided with a radio frequency conductive contact section (103), and the radio frequency conductive contact section (103) is used to connect to the radio frequency energy conduction structure in the puncture guide wire handle (20) to achieve radio frequency energy conduction; The puncture guidewire handle (20) is connected to the radio frequency energy puncture instrument (30), and comprises a guidewire fixing shaft (2), the front end of which is coaxially provided with a radio frequency energy conduction shaft (4), so as to be connected to the radio frequency conductive contact section of the puncture guidewire through the radio frequency energy conduction shaft (4), and the puncture guidewire handle (20) is adapted to be compatible with a surgical robot; A radio frequency energy puncture device (30) connected to the radio frequency tail wire of the puncture guide wire handle (20) for providing radio frequency energy; The puncture guidewire handle also includes a handle housing (1), an adapting structure of the guidewire fixing shaft (2) is arranged in the handle housing (1), and the adapting structure also includes front and rear baffles (11), and an annular protrusion (22) is arranged on the side of the guidewire fixing shaft (2) to control the total pushing stroke of the guidewire fixing shaft (2) based on the annular protrusion (22), so that the guidewire fixing shaft (2) is axially displaced within the stroke between the front and rear baffles (11); The guidewire fixing shaft (2) is axially provided with a long strip-shaped protrusion (23), and the adapting structure further comprises an axial groove structure (14). The axial groove structure (14) is provided in the handle housing (1), and the long strip-shaped protrusion (23) can be slidably embedded in the axial groove structure (14) to lock the circumferential position between the guidewire fixing shaft (2) and the handle housing (1).

2. The radiofrequency puncture device according to claim 1, characterized in that: The tail end of the puncture guidewire (10) is also provided with a handle push indication section (104), the handle push indication section (104) is arranged at a preset distance from the radio frequency conductive contact section (103), and the handle push indication section (104) is used to locate the installation position of the puncture guidewire handle at the tail end of the guidewire.

3. The radiofrequency puncture device according to claim 1, characterized in that: The head end of the puncture guide wire (10) is a fused ball-shaped structure.

4. The radiofrequency puncture device according to claim 1, characterized in that: The front end of the radio frequency energy conduction shaft (4) is provided with at least two through grooves (5), and the through grooves (5) are used to squeeze and contract the front end of the radio frequency energy conduction shaft (4) in a circumferential direction so that the inner wall of the radio frequency energy conduction shaft (4) fits the puncture guide wire.

5. The radiofrequency puncture device according to claim 4, characterized in that: The puncture guidewire handle also includes a fixed knob (3), wherein an inner cavity (31) is arranged in the fixed knob (3), and the inner cavity (31) is flared so as to be connected to the guidewire fixed shaft (2) through the fixed knob (3), and the front end of the radio frequency energy conduction shaft (4) is circumferentially squeezed through the inner cavity (31) to limit the axial displacement of the guidewire and make the inner wall of the radio frequency energy conduction shaft (4) fit the puncture guidewire.

6. The radiofrequency puncture device according to claim 4, characterized in that: The handle housing (1) is a detachable structure, the adapting structure comprises a damping pad fixing groove (13), and the outer sleeve of the guide wire fixing shaft (2) is provided with a damping pad (21), so that after the guide wire fixing shaft (2) is installed in the handle housing (1), the damping pad (21) is embedded in the damping pad fixing groove (13) to limit the axial movement of the guide wire fixing shaft (2).

7. The radiofrequency puncture device according to claim 4 or 5, characterized in that: The portion of the guidewire fixing shaft (2) exposed outside the handle housing (1) is provided with a guidewire pushing component (24), and the guidewire pushing component (24) can be embedded in an axial control component of a surgical robot to be controlled by the surgical robot.

8. A radiofrequency puncture system, characterized in that: It comprises a radiofrequency puncture device as described in any one of claims 1 to 7, and a surgical robot, wherein the surgical robot is connected to the puncture guide wire handle of the radiofrequency puncture device to perform corresponding surgical actions under control instructions.

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