Radio frequency puncture assembly

Abstract

The utility model discloses a radio frequency puncture assembly, and relates to the medical instrument technology, the radio frequency puncture assembly comprises a puncture guide wire, the puncture guide wire is of a two-circle half vortex line structure and comprises a spring body and a mandrel, the two ends of the mandrel are fixed to the head and the tail of the spring body, and the hardness of the head end of the mandrel gradually changes from soft to hard from a puncture tip to a tube body; the tail end of the puncture guide wire is provided with a radio frequency conductive contact section, and the radio frequency conductive contact section is used for being connected into a radio frequency energy conduction structure in a puncture guide wire handle so as to realize conduction of radio frequency energy; the puncture guide wire handle is connected to the radio frequency energy puncture instrument and comprises a guide wire fixing shaft, and a radio frequency energy conduction shaft is coaxially arranged at the front end of the guide wire fixing shaft so that the puncture guide wire handle can be connected with the radio frequency conductive contact section of the puncture guide wire through the radio frequency energy conduction shaft. According to the radio frequency puncture assembly, puncture can be conducted through radio frequency energy, an operator does not need to vigorously operate a puncture needle, the heart perforation risk in the operation process is reduced, and the puncture operation efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to a radiofrequency puncture assembly. Background Art

[0002] The heart of a human being includes a right ventricle, a right atrium, a left ventricle, and a left atrium. The right atrium communicates with the superior vena cava and the inferior vena cava. The tricuspid valve separates the right atrium and the right ventricle, and the mitral valve separates the left atrium and the left ventricle. The right atrium is separated from the left atrium by the interatrial septum. During surgery, the left atrium is the most difficult to access. The most common method used to access the left atrium is to puncture the interatrial septum. Normally, a percutaneous catheter cannot reach the left atrium directly in a forward direction. Although it is possible to enter the left atrium retrogradely through two turns of the aortic valve and the mitral valve, the catheter operation is very complicated. Puncturing the atrial septum allows the catheter to pass through the right atrium and the atrial septum directly to the left atrium. In the early years, atrial septum puncture was mainly used for left heart catheterization 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 booming development of atrial fibrillation radiofrequency ablation, this technique of atrial septum puncture has begun to be increasingly valued by electrophysiologists and has become one of the techniques that electrophysiologists must master.

[0003] Atrial septum puncture is a minimally invasive surgery guided by imaging equipment. In electrophysiological surgery, atrial septum puncture is a common and basic operation. Through a guiding sheath, a guide wire, and a puncture needle, a passage from the right atrium to the left atrium is established to complete the ablation in the left atrium and the treatment of arrhythmias and structural heart diseases in the left ventricle. Normally, a percutaneous catheter cannot reach the left atrium directly in a forward direction. Although it is possible to enter the left atrium retrogradely through two turns of the aortic valve and the mitral valve, the catheter operation is very troublesome. Puncturing the atrial septum can simplify the operation of left heart system examination and treatment by allowing the catheter to pass from the right atrium to the left atrium. Left atrial interventional surgery is widely used in current clinical 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. Clinically, there are generally the following three methods for atrial septum puncture: 1) With the assistance of X-ray angiography, find the anatomical position of the fossa ovalis through a puncture needle assembly; 2) With the assistance of ICE intracardiac ultrasound; 3) With the assistance of a three-dimensional electroanatomical mapping system, find the position of the fossa ovalis based on potential characteristics through an ablation catheter assembly. Methods (1) and (2) are both based on the anatomical characteristics of the fossa ovalis, which is composed of a relatively thin double-layer endocardium. Through the puncture assembly, a physical tent-like protrusion is formed near the fossa ovalis to determine the puncture position. Method (3) realizes a radiation-free and ultrasound-free surgical environment. Based on the anatomical characteristics of the fossa ovalis, since the number of myocardial cells is small, the recorded voltage will be smaller than that of other surrounding heart regions. Therefore, the position of the fossa ovalis can be mapped through an ablation catheter. The above three clinical puncture methods usually have the following problems:

[0004] With the assistance of X-ray imaging, although it is a clinical routine method, doctors are exposed to X-ray radiation.

[0005] With the assistance of an intracavitary ultrasound catheter, an ultrasound image is established. However, the expensive ultrasound catheter significantly increases the cost of clinical treatment and is not suitable for large-scale promotion.

[0006] The mechanical puncture device is inserted into the right atrium through a combination of a guiding sheath, a dilator, and a guide wire. When the dilator guide wire reaches the fossa ovalis, the guide wire needs to be withdrawn and replaced with a puncture needle to complete the atrial septum puncture. Due to the complex operation, the operation time of the surgery is prolonged and the surgical cost is increased.

[0007] During the actual puncture process, in some patients with special cardiac structures, such as atrial septum fibrosis, thickening of the fossa ovalis tissue, and tissue tumorization, etc., under the strong operation of doctors, traditional mechanical puncture needles are prone to cause surgical complications, such as cardiac perforation, leading to cardiac tamponade and ultimately resulting in puncture failure.

[0008] Under the guidance of the cardiac three-dimensional anatomical mapping of the ablation mapping catheter, although X-ray and ultrasound catheters are not required, due to the sequence of three-dimensional modeling, the operator needs to first complete the cardiac three-dimensional modeling with the mapping catheter, and then the puncture needle performs puncture based on the electroanatomical positioning of the already modeled catheter. The imaging of the puncture needle in the three-dimensional model cannot be real-time located. Due to respiration, heartbeat, and body movement, there will be a displacement difference between the position of the fossa ovalis located by the catheter and the real-time puncture needle tip, thus causing surgical safety hazards. The displacement of the mapping model will result in puncture failure and myocardial injury.

[0009] The atrial septum puncture surgery is performed by the operator using surgical instruments such as a puncture needle, a sheath, and a guide wire. It is not convenient to determine the puncture point, puncture direction, and puncture force during the surgery, and the puncture needle cannot be accurately and stably controlled. During the actual puncture process, in some patients with special cardiac structures, such as atrial septum fibrosis, thickening of the fossa ovalis tissue, and tissue tumorization, etc., under the strong operation of doctors, traditional mechanical puncture needles are prone to cause surgical complications, such as cardiac perforation, leading to cardiac tamponade and ultimately resulting in puncture failure.

[0010] To address the above problems, for example, Patent 202322381180.X proposes a radiofrequency puncture system. The system includes a puncture device, a puncture needle, a connecting piece, and a radiofrequency device. Along the axial direction of the puncture device, the puncture needle is inserted into the puncture device. The connecting piece is clamped at one end close to the tail of the puncture needle, and the connecting piece is electrically connected to the puncture needle. The output end of the radiofrequency device is electrically connected to the puncture needle, thereby realizing the electrical connection between the output end of the radiofrequency device and the puncture needle. Moreover, due to the clamping connection between the connecting piece and the puncture needle, the contact area at the clamping connection position is large, and the connection structure is stable, which is beneficial to improving the stability of the electrical connection between the output end of the radiofrequency device and the puncture needle, and further improving the stability and effectiveness of the puncture needle for atrial septum puncture. Using radiofrequency energy for atrial septum puncture, the operator does not need to apply great force to complete the puncture easily, and the process is safe and effective.

[0011] Although the above method can solve the problem that traditional mechanical puncture requires doctors to apply great force and there are safety risks during the process, it still requires manual operation by the operator. During the manual puncture process, the stability is not high, and the surgical effect is easily affected by factors such as the operator's fatigue. Moreover, there is still the problem of difficulty in determining the position of the fossa ovalis. Summary of the Invention

[0012] The embodiments of the present application provide a radiofrequency puncture assembly, which can perform puncture through radiofrequency energy, does not require the operator to apply great force to the puncture needle, reduces the risk of cardiac perforation during the surgical process, and improves the efficiency of the puncture surgery.

[0013] The embodiments of the present application provide a radiofrequency puncture assembly, including:

[0014] A puncture guide wire, which is a two-and-a-half-turn spiral structure, includes a spring body and a mandrel. The two ends of the mandrel are fixedly connected to the head and tail of the spring body. The hardness of the head end of the mandrel gradually changes from soft to hard from the puncture tip to the tube body. A radiofrequency conductive contact section is provided at the tail end of the puncture guide wire 1. The radiofrequency conductive contact section is used to access the radiofrequency energy conduction structure in the puncture guide wire handle to realize the conduction of radiofrequency energy;

[0015] A puncture guide wire handle, which is connected to a radiofrequency energy puncture instrument, includes a guide wire fixing shaft 2. A radiofrequency energy conduction shaft 4 is coaxially arranged at the front end of the guide wire fixing shaft 2 to connect with the radiofrequency conductive contact section of the puncture guide wire through the radiofrequency energy conduction shaft 4.

[0016] Optionally, a handle push indication section is further provided at the tail end of the puncture guide wire. The handle push indication section is arranged at a preset distance from the radiofrequency conductive contact section. The handle push indication section is used to locate the installation position of the puncture guide wire handle at the tail end of the guide wire.

[0017] Optionally, the head end of the puncture guide wire is a spherical melting structure.

[0018] Optionally, at least two through slots 5 are provided at the front end of the radio frequency energy conduction shaft 4. The through slots 5 are used to make the front end of the radio frequency energy conduction shaft 4 be circumferentially squeezed and contracted to clamp, so that the inner wall of the radio frequency energy conduction shaft 4 fits the puncture guide wire.

[0019] Optionally, the puncture guide wire handle further includes a fixing knob 3. An inner cavity 31 is provided in the fixing knob 3. The inner cavity 31 is in a flared shape to be connected to the guide wire fixing shaft 2 through the fixing 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 guide wire and make the inner wall of the radio frequency energy conduction shaft 4 fit the puncture guide wire.

[0020] Optionally, the puncture guide wire handle further includes a handle housing 1. The handle housing 1 is a detachable structure. An adaptation structure for the guide wire fixing shaft 2 is provided in the handle housing 1. The adaptation structure includes a damping pad fixing groove 13. A damping pad 21 is sleeved outside the guide wire fixing shaft 2. After the guide wire fixing shaft 2 is inserted into 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.

[0021] Optionally, the adaptation structure further includes front and rear baffles 11. A ring-shaped 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 ring-shaped protrusion 22, so that the guide wire fixing shaft 2 makes an axial displacement within the stroke between the front and rear baffles 11.

[0022] Optionally, a strip-shaped protrusion 23 is axially provided on the guide wire fixing shaft 2. The adaptation structure further includes an axial groove structure 14. The axial groove structure 14 is provided in the handle housing 1. The strip-shaped protrusion 23 can be slidably inserted into the axial groove structure 14 to lock the circumferential position between the guide wire fixing shaft 2 and the handle housing 1.

[0023] Optionally, a guide wire pushing member 24 is provided on the part of the guide wire fixing shaft 2 exposed outside the handle housing 1. The guide wire pushing member 24 can be inserted into the axial control assembly of the surgical robot to be controlled by the surgical robot.

[0024] The radio frequency puncture assembly of the embodiment of the present application can be connected to a radio frequency energy puncture instrument, and thus perform puncture through radio frequency energy, without the operator having to vigorously operate the puncture needle, reducing the risk of heart perforation during the operation and improving the efficiency of the puncture operation.

[0025] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented in accordance with the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specifically illustrates the specific implementation manners of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not to be considered as limiting the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0027] Figure 1 is a schematic diagram of the overall structure of the radiofrequency puncture assembly according to an embodiment of the present application;

[0028] Figure 2 is a schematic diagram of the structure of the puncture guide wire part of the radiofrequency puncture assembly according to an embodiment of the present application;

[0029] Figure 3 is a schematic diagram of the structure of the puncture guide wire handle part of the radiofrequency puncture assembly according to an embodiment of the present application;

[0030] Figure 4 is a schematic cross-sectional view of the puncture guide wire handle part of the radiofrequency puncture assembly according to an embodiment of the present application;

[0031] Figure 5 is another schematic diagram of the structure of the puncture guide wire handle part of the radiofrequency puncture assembly according to an embodiment of the present application;

[0032] Figure 6 is a schematic diagram of the overall structure of the radiofrequency puncture assembly accessing the radiofrequency energy puncture instrument according to an embodiment of the present application;

[0033] Figure 7 is a schematic diagram of the radiofrequency energy puncture instrument used in an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the drawings. Although the exemplary embodiments of the present disclosure are shown in the 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 so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0035] An embodiment of the present application provides a radiofrequency puncture assembly, as Figure 1 shown, including:

[0036] a puncture guide wire 10, as Figure 2As shown, it is a two-and-a-half-turn spiral wire structure, and the diameter of the guide wire can be 0.035 inches. It includes a spring body and a mandrel 101. The two ends of the mandrel 101 are fixedly connected to the head and tail of the spring body. The hardness of the head end of the mandrel 101 gradually changes from soft to hard from the puncture tip to the tube body, that is Figure 2 In the mandrel hardness gradient section 102 at the head end of the puncture guide wire 10, the gradual change from soft to hard facilitates puncturing into the fossa ovalis and positioning in the heart cavity. A radiofrequency conductive contact section 103 is provided at the tail end of the puncture guide wire 1. The radiofrequency conductive contact section 103 is used to connect to the radiofrequency energy conduction structure in the puncture guide wire handle to achieve the conduction of radiofrequency energy.

[0037] In the embodiment of the present application, the guide wire tube body is set 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 at the same time. In some embodiments, the head end of the puncture guide wire 10 is a spherical fusion structure, including a spherical fusion puncture head end 105. During the pushing process, the spherical fusion puncture head end 105 can avoid damaging the inner wall of the dilator or the inner wall of the heart, and at the same time ensure the hardness of the puncture head end to prevent the head from being twisted and deformed during the puncture process, thereby improving the puncture effect.

[0038] The puncture guide wire handle 20 is connected to a radiofrequency energy puncture instrument, including a guide wire fixing shaft 2. A radiofrequency energy conduction shaft 4 is coaxially arranged at the front end of the guide wire fixing shaft 2 to connect to the radiofrequency conductive contact section of the puncture guide wire through the radiofrequency energy conduction shaft 4. In some examples, the radiofrequency puncture assembly can be connected to a radiofrequency energy puncture instrument through a radiofrequency tail wire 6 at the tail end of the puncture guide wire handle 20, so as to provide radiofrequency energy based on the radiofrequency energy puncture instrument and realize puncture based on radiofrequency energy.

[0039] The radiofrequency puncture assembly of the embodiment of the present application can perform puncture through radiofrequency energy, without the operator having to operate the puncture needle with great force, reducing the risk of heart perforation during the operation and improving the efficiency of the puncture operation.

[0040] In some embodiments, a handle push indication section 104 is further provided at the tail end of the puncture guide wire. The handle push indication section 104 is disposed at a preset distance from the radio frequency conductive contact section 103. The handle push indication section 104 is used to locate the installation position of the puncture guide wire handle at the tail end of the guide wire. In some specific examples, except for the radio frequency conductive contact section 103 and the spherical ablation puncture head end, an insulating coating is provided on other parts of the guide wire tube body. The radio frequency conductive contact section 103 is used for conducting radio frequency energy with the radio frequency energy conduction structure in the handle. The handle push indication section 104 is used to locate the installation position of the detachable handle at the tail end of the guide wire. After the puncture guide wire is installed with the handle, the radio frequency energy conduction structure in the handle is connected to the radio frequency conductive contact section, and the radio frequency energy is transmitted from the radio frequency puncture instrument through the handle to the head end of the puncture guide wire.

[0041] In some embodiments, as Figure 3 shown, at least two through slots 5 are provided at the front end of the radio frequency energy conduction shaft 4. Specifically, the at least two through slots 5 can be symmetrically arranged. The through slots 5 are used to make the front end of the radio frequency energy conduction shaft 4 be squeezed and contracted circumferentially to clamp, 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, on the one hand, the through slots 5 are used for locking and fixing the puncture guide wire, and on the other hand, the contact surface between the radio frequency energy conduction shaft and the puncture guide wire is increased to improve the stability of radio frequency energy conduction.

[0042] In some embodiments, as Figure 4 shown, the puncture guide wire handle further includes a fixing knob 3. An inner cavity 31 is provided in the fixing knob 3. The inner cavity 31 is in a flared shape to connect with the guide wire fixing shaft 2 through the fixing 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 guide wire and make the inner wall of the radio frequency energy conduction shaft 4 fit the puncture guide wire. In a specific example, as Figure 4 shown, an internal thread can also be provided in the fixing knob 3. The inner cavity 31 is provided in the internal thread. The cross-sectional diameter of the inner cavity near the thread end is larger than the cross-sectional diameter of the inner side, so that the inner cavity 31 is in a flared shape. The front end of the guide wire 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 guide wire fixing shaft 2. The fixing of the guide wire on the handle is realized through the fixing knob 3 and the guide wire fixing shaft 2. As the fixing knob 3 is tightened on the guide wire fixing shaft 2, the radio frequency energy conduction shaft 4 enters the inner cavity. As the fixing knob is tightened, the radio frequency energy conduction shaft 4 moves inward. Under the extrusion of the inner cavity wall, the radio frequency energy conduction shaft contracts and clamps, locking the guide wire in the guide wire passage in the radio frequency energy conduction shaft to limit the axial displacement of the guide wire, and at the same time ensuring smooth electrical conduction between the radio frequency energy conduction shaft and the guide wire. The tail end of the guide wire fixing shaft 2 is connected to the radio frequency tail wire 6 and the guide wire passage 7.

[0043] In some embodiments, as Figure 5As shown, the puncture guide wire handle further 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. An adaptation structure for the guide wire fixing shaft 2 is provided inside the handle housing 1. The adaptation structure includes a damping pad fixing groove 13. A damping pad 21 is sleeved outside the guide wire fixing shaft 2. After the guide wire fixing shaft 2 is inserted into 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. When the guide wire fixing shaft 2 moves axially under the action of a guide wire pushing member, it can ensure smooth sliding while having a damping feeling, facilitating fine adjustment operations by the operator.

[0044] In some embodiments, such as Figure 5 As shown, the adaptation structure further includes front and rear baffles 11. A ring-shaped 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 ring-shaped protrusion 22, so that the guide wire fixing shaft 2 makes an axial displacement within the stroke between the front and rear baffles 11, avoiding damage to the RF tail wire due to the axial movement of the guide wire fixing shaft exceeding the limit and affecting the RF energy transmission, resulting in surgical failure.

[0045] In some embodiments, such as Figure 5 As shown, a strip-shaped protrusion 23 is axially provided on the guide wire fixing shaft 2. The adaptation structure further includes an axial groove structure 14. The axial groove structure 14 is provided inside the handle housing 1. The strip-shaped 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 housing 1, preventing the guide wire fixing shaft from rotating independently and affecting the function. Through the above-mentioned guide wire fixing shaft adaptation structure, the guide wire fixing shaft is slidably connected to the handle housing.

[0046] In some embodiments, a guide wire pushing member 24 is provided on the part of the guide wire fixing shaft 2 exposed outside the handle housing 1. The guide wire pushing member 24 can be embedded in the axial control component of the surgical robot to be controlled by the surgical robot. As Figure 5 shown, in a specific example, the pushing member is driven by the axial control component of the surgical robot to make an axial displacement to push the guide wire to complete the puncture. For example, in a specific example, a rotating gear 15 is provided outside the handle housing and meshes with the driving gear of the rotating driving component of the surgical robot to realize the rotation control of the RF puncture guide wire by the surgical robot. In the working state, the puncture guide wire handle is installed on the actuator of the surgical robot. Through the puncture guide wire handle of the present application, the surgical robot can achieve various controls of the guide wire, such as:

[0047] 1. Utilize the overall axial movement of the actuator of the surgical robot to control the large-stroke pushing of the guide wire to meet the large-stroke pushing requirement for the puncture guide wire to enter the human body.

[0048] 2. Use the surgical robot to control the axial movement of the guide wire pushing component, drive the axial displacement of the guide wire fixing shaft in the handle housing, and precisely control the axial pushing of the puncture guide wire to improve the stability of the puncture guide wire during the puncture process.

[0049] 3. Use the surgical robot to drive the rotating gear outside the handle housing to meet the rotational control of the puncture guide wire by the surgical robot, so as to finely adjust the direction of the head end of the puncture guide wire.

[0050] As Figure 6 shown, the state diagram of the radiofrequency puncture component of the present application accessing the radiofrequency energy puncture instrument 30 through the radiofrequency tail wire 6. The radiofrequency energy puncture instrument 30, as Figure 7 shown, in some specific examples, the overall structure of the radiofrequency puncture instrument may include: a UI display 301, a radiofrequency wire interface 302, a negative electrode plate interface 303, a radiofrequency puncture start button 304, and a foot pedal interface 305. The UI display 301 of the radiofrequency puncture instrument is used to display the monopolar electrogram of the puncture guide wire in real time. The front panel of the display is respectively provided with a radiofrequency wire interface 302, a foot pedal interface 305, and a negative electrode plate interface 303. The radiofrequency wire is connected to the radiofrequency tail wire at the tail of the puncture guide wire handle. The radiofrequency energy is emitted from the radiofrequency wire interface of the radiofrequency puncture instrument and transmitted to the radiofrequency energy conduction shaft through the tail wire connector at the tail end of the puncture guide wire handle. The radiofrequency energy is transmitted to the puncture guide wire by the radiofrequency energy conduction shaft. The foot pedal interface is used to connect the foot pedal, and during the operation, the operator can use the foot pedal to control the output and shutdown of the radiofrequency energy. A radiofrequency puncture start button is also provided on the radiofrequency energy puncture instrument 30, and the operator can also release the radiofrequency energy through the start button of the device. The negative electrode plate interface is used to connect the negative electrode plate, and the negative electrode plate is attached to the patient's back to form a signal loop for the radiofrequency current.

[0051] The radiofrequency puncture component of the embodiment of the present application can perform puncture through radiofrequency energy, eliminating the need for the operator to vigorously operate the puncture needle, reducing the risk of heart perforation during the operation, and improving the puncture operation efficiency at the same time.

[0052] The detachable puncture guide wire handle of the radiofrequency puncture component of the embodiment of the present application is adapted to the remote surgical robot, enabling remote puncture surgery and solving the radiation impact of X-rays on the operator during traditional puncture. Two axial movement modes are provided for the operator to choose. By the overall axial displacement of the surgical robot actuator, the large stroke movement of the puncture guide wire is controlled, and the pushing of the puncture guide wire is precisely controlled through the guide wire pushing component of the puncture handle. The puncture process is more stable, and at the same time, two pushing modes of large stroke displacement and high-precision manipulation are satisfied.

[0053] The puncture guide wire of the present application simultaneously has the functions of a guide wire and a puncture needle. During the operation, it can both guide the sheath tube and, after reaching the fossa ovalis position, act as a puncture needle to puncture the atrial septum, improving the operation efficiency and reducing the operation cost of the patient.

[0054] It should be noted that in each embodiment of the present application, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of another identical element in the process, method, article or device comprising the element.

[0055] The serial numbers of the embodiments of the present application above are for description only and do not represent the superiority or inferiority of the embodiments.

[0056] The embodiments of the present application have been described above with reference to the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims. All of these are within the protection scope of the present application.

Claims

1. A radio frequency puncture assembly, characterized in that, Comprising: A puncture guide wire, which is a two-and-a-half-turn spiral structure, includes a spring body and a mandrel. The two ends of the mandrel are fixedly connected to the head and tail of the spring body. The hardness of the head end of the mandrel gradually changes from soft to hard from the puncture tip to the tube body. The tail end of the puncture guide wire (10) is provided with a radio frequency conductive contact section, and the radio frequency conductive contact section is used to access the radio frequency energy conduction structure in the puncture guide wire handle to realize the conduction of radio frequency energy; A puncture guide wire handle, which is connected to a radio frequency energy puncture instrument, includes a guide wire fixing shaft (2). The front end of the guide wire fixing shaft (2) is coaxially provided with a radio frequency energy conduction shaft (4) to be connected to the radio frequency conductive contact section of the puncture guide wire through the radio frequency energy conduction shaft (4).

2. The radio frequency puncture assembly according to claim 1, wherein The tail end of the puncture guide wire is further provided with a handle push indication section, and the handle push indication section is arranged at a preset distance from the radio frequency conductive contact section. The handle push indication section is used to position the installation position of the puncture guide wire handle at the tail end of the guide wire.

3. The radio frequency puncture assembly according to claim 1, characterized in that The head end of the puncture guide wire is a spherical melting structure.

4. The radio frequency puncture assembly according to claim 1, wherein, The head end of the puncture guide wire is a spherical melting structure.

5. The radio frequency puncture assembly according to claim 4, wherein, At least two through grooves (5) are provided at the front end of the radio frequency energy conduction shaft (4). The through grooves (5) are used to make the front end of the radio frequency energy conduction shaft (4) be squeezed and contracted circumferentially to clamp, so that the inner wall of the radio frequency energy conduction shaft (4) fits the puncture guide wire.

6. The radio frequency puncture assembly according to claim 4, wherein, The puncture guide wire handle further includes a fixing knob (3). An inner cavity (31) is provided in the fixing knob (3), and the inner cavity (31) is in a flared shape to be connected to the guide wire fixing shaft (2) through the fixing 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 guide wire and make the inner wall of the radio frequency energy conduction shaft (4) fit the puncture guide wire.

7. The radio frequency puncture assembly according to claim 6, wherein, The puncture guide wire handle further includes a handle housing (1). The handle housing (1) is a detachable structure. An adaptation structure for the guide wire fixing shaft (2) is provided in the handle housing (1). The adaptation structure includes a damping pad fixing groove (13). A damping pad (21) is sleeved outside the guide wire fixing shaft (2). After the guide wire fixing shaft (2) is inserted into 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).

8. The radio frequency puncture assembly according to claim 6, wherein, The adaptation structure further includes front and rear baffles (11). A ring-shaped protrusion (22) is provided on the side of the guide wire fixing shaft (2) to control the total push stroke of the guide wire fixing shaft (2) based on the ring-shaped protrusion (22), so that the guide wire fixing shaft (2) makes an axial displacement within the stroke between the front and rear baffles (11). A strip-shaped protrusion (23) is axially provided on the guide wire fixing shaft (2). The adaptation structure further includes an axial groove structure (14). The axial groove structure (14) is provided in the handle housing (1). The strip-shaped protrusion (23) can be slidably inserted into the axial groove structure (14) to lock the circumferential position between the guide wire fixing shaft (2) and the handle housing (1).

9. The radio frequency puncture assembly according to any one of claims 4-8, characterized in that A part of the guide wire fixing shaft (2) exposed outside the handle housing (1) is provided with a guide wire pushing member (24), and the guide wire pushing member (24) can be embedded in the axial control assembly of the surgical robot to be controlled by the surgical robot.

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