Guidewires, sheaths, puncture components and electronic equipment

Abstract

The present invention provides a puncture guidewire, a sheath, a puncture assembly, and an electronic device. The puncture guidewire includes a guidewire inner core main body section and a puncture head end, and the puncture head end is connected to the distal end of the guidewire inner core main body section; at least the puncture head end of the guidewire inner core main body section and the puncture head end has conductivity and is used to receive energy released by the sheath tube through wireless transmission; the sheath tube includes a tube body and a third conductive unit arranged on the tube body, and the third conductive unit is used to release energy to the puncture guidewire through wireless transmission to heat the puncture head end of the puncture guidewire. In this way, when the puncture assembly composed of the puncture guidewire and the sheath tube is used for puncture, while the guidewire puncture is achieved by the energy source, since the guidewire itself does not need to be provided with a tail wire, the impact on the doctor's operation is reduced, thereby improving the safety of the operation.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a guide wire, a sheath, a puncture assembly and an electronic device. Background Art

[0002] For traditional mechanical puncture needles such as atrial septal puncture needles, during the process of puncturing the atrial septum, due to inertia, the sharp puncture head can easily move forward a certain distance after the puncture is completed, thereby causing scratches on the inner wall of the heart. At the same time, considering the need to streamline surgical steps and reduce surgical time, puncture guidewires are used in atrial septal puncture surgery to combine the functions of puncture needles and guidewires. The application of puncture guidewires has largely solved this type of problem. Driven by the development of high-end intelligent active surgical consumables, from the perspective of currently available patented solutions, the following types of puncture guidewires can be used to reduce such hazards: energy-type puncture guidewires for puncturing the atrial septum. This guidewire puncture method can directly avoid the possibility of harm to the inner wall of the heart during atrial puncture. At the same time, the use of puncture guidewires can also reduce the steps of atrial septal puncture surgery, namely the step of exchanging the puncture needle and the puncture guidewire, thereby reducing surgical time and harm to patients. However, as medical devices develop towards active devices, some problems will also arise. For example, the guide wire that generates energy needs to be connected to the conductive wire, which leads to an increase in the number of tail wires used in surgery. Different instruments need to be connected to the energy source, resulting in too many connecting wires, which restricts or affects the doctor's operation, which will greatly affect the safety of the surgery. Summary of the Invention

[0003] The object of the present invention is to provide a guide wire, a sheath, a puncture assembly and an electronic device to solve one or more problems in the prior art.

[0004] In order to solve the above technical problems, the present invention provides a puncture guidewire, which is used in conjunction with a sheath. The puncture guidewire includes: a guidewire inner core main body segment and a puncture head end, and the puncture head end is connected to the distal end of the guidewire inner core main body segment. At least the puncture head end is conductive and is used to receive energy released by the sheath through wireless transmission for puncture.

[0005] Optionally, in the puncture guidewire, the puncture guidewire also includes a first conductive unit, which is arranged at the distal end of the guidewire inner core main body segment, the guidewire inner core main body segment also has conductivity, and the guidewire inner core main body segment is electrically connected to the puncture head end.

[0006] Optionally, in the puncture guidewire, the puncture guidewire further includes a second conductive unit, and the second conductive unit is arranged at the proximal end of the puncture head.

[0007] Optionally, in the puncture guidewire, the first conductive unit includes a first conductive coil or a conductive coating, and the first conductive unit is arranged along the circumference of the guidewire inner core main body segment.

[0008] Optionally, in the puncture guidewire, the second conductive unit includes a second conductive coil or a conductive coating, and the second conductive unit is arranged along the circumference of the puncture head end.

[0009] Optionally, in the puncture guidewire, the puncture guidewire further includes an insulating segment, and the puncture head end is connected to the distal end of the guidewire inner core main body segment through the insulating segment.

[0010] Optionally, in the puncture guidewire, the puncture guidewire further includes a polymer material layer, the polymer material layer wraps the guidewire inner core main body segment and the puncture head end, and exposes the distal end of the puncture head end.

[0011] Optionally, in the puncture guidewire, the puncture guidewire also includes a first conductive unit and a second conductive unit, the first conductive unit is arranged at the distal end of the guidewire inner core main body segment, and the second conductive unit is arranged at the proximal end of the puncture head end, and the first conductive unit and the second conductive unit are integrally formed.

[0012] The present invention also provides a sheath tube, which is used in conjunction with a puncture guidewire. The sheath tube includes a tube body and a third conductive unit arranged on the tube body. The third conductive unit is used to release energy to the puncture guidewire through wireless transmission to heat the puncture tip end of the puncture guidewire.

[0013] Optionally, in the sheath tube, the third conductive unit is spaced a preset distance from the farthest end of the sheath tube.

[0014] Optionally, in the sheath tube, the third conductive unit includes a third conductive coil wound along the circumference of the tube body and a first conductive wire electrically connected to the third conductive coil.

[0015] Optionally, in the sheath tube, the third conductive coil is arranged inside the tube wall of the tube body and is closer to the inner wall of the tube body than the outer wall of the tube body.

[0016] The present invention further provides a puncture assembly, comprising: the puncture guidewire as described above and the sheath as described above, wherein the puncture guidewire is movably arranged in the sheath along its own axis.

[0017] Optionally, in the puncture assembly, the puncture guidewire further includes an insulating segment, and the puncture head end is connected to the distal end of the guidewire inner core main body segment through the insulating segment. When the insulating segment completely overlaps with the third conductive unit of the sheath, the distal end of the puncture head end is located outside the sheath.

[0018] The present invention further provides an electronic device, which is used to connect to the puncture assembly described above, and when receiving an operation instruction, the electronic device performs the following steps:

[0019] monitoring the magnitude of the electromagnetic signal between the sheath and the puncture guidewire when the puncture guidewire moves in the sheath;

[0020] When an electromagnetic signal is detected between the sheath and the puncture guidewire, energy is transmitted to the third conductive unit, so that the third conductive unit releases energy to the puncture guidewire to heat the puncture tip; and

[0021] According to the monitored electromagnetic signal generated between the sheath and the puncture guidewire, it is determined whether the insulating section and the third conductive unit are completely overlapped, and then it is determined whether to stop transmitting energy to the third conductive unit.

[0022] In summary, in the puncture guidewire, sheath, puncture assembly and electronic device provided by the present invention, the puncture guidewire is used in conjunction with the sheath, and the puncture guidewire includes a guidewire inner core main body section and a puncture head end, and the puncture head end is connected to the distal end of the guidewire inner core main body section, and at least the puncture head end is conductive and is used to perform puncture by receiving the energy released by the sheath; the sheath includes a tube body and a third conductive unit arranged on the tube body, and the third conductive unit is used to release energy to the puncture guidewire by wireless transmission to heat the puncture head end of the puncture guidewire. In this way, when the puncture assembly composed of the puncture guidewire and the sheath is used for puncture, while the guidewire puncture is achieved by the energy source, since the guidewire itself does not need to be provided with a tail wire, the impact on the doctor's operation is reduced, thereby improving the safety of the operation.

[0023] Furthermore, the puncture guidewire also includes an insulating segment, through which the puncture tip is connected to the distal end of the guidewire core segment. Because the conductivity of the insulating segment is lower than that of the puncture tip and the guidewire core segment, changes in the relative position between the puncture guidewire and the sheath can cause changes in the electromagnetic signal generated between the two. Therefore, the relative position between the puncture guidewire and the sheath can be determined by changes in the electromagnetic signal between the two, thereby avoiding the risk of cancer caused by the use of X-ray positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of a puncture assembly provided in Example 1 of the present invention;

[0025] Figure 2 A schematic structural diagram of a puncture assembly provided in the second embodiment of the present invention;

[0026] Figure 3 A schematic structural diagram of a puncture assembly provided in Example 3 of the present invention;

[0027] Figure 4 A schematic structural diagram of a puncture assembly provided in a fourth embodiment of the present invention;

[0028] The descriptions of the reference numerals are as follows:

[0029] 1- puncture guidewire; 2- sheath; 11- guidewire inner core main body; 12- puncture tip; 21- third conductive unit; 22- tube body; 111- first conductive unit; 121- second conductive unit; 13- polymer material layer; 14- insulation segment. DETAILED DESCRIPTION

[0030] In order to make the objects, advantages and features of the present invention clearer, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and are not drawn to scale, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. In addition, the structure shown in the drawings is often a part of the actual structure. In particular, the emphasis required to be shown in each drawing is different, and sometimes different proportions are used. It should also be understood that, unless otherwise specified or indicated, the terms "first", "second", "third" and the like in the specification are only used to distinguish between the various components, elements, steps, etc. in the specification, and are not used to represent the logical relationship or sequential relationship between the various components, elements, steps, etc.

[0031] In this application document, "proximal" and "distal" refer to the relative orientation, position, and direction of components or actions relative to each other from the perspective of a doctor using the medical device. Although "proximal" and "distal" are not restrictive, "proximal" generally refers to the end of the medical device that is close to the doctor during normal operation, and "distal" generally refers to the end that first enters the patient's body.

[0032] [Example 1]

[0033] This embodiment provides a puncture guidewire, which is used in conjunction with a sheath. When the puncture guidewire is in place with the cooperation of the sheath, the sheath exposes the head end of the puncture guidewire, allowing the puncture guidewire to puncture the target tissue by releasing energy.

[0034] Please refer to Figure 1 The puncture guidewire 1 provided in this embodiment includes a guidewire core body 11 and a puncture tip 12, which is connected to the distal end of the guidewire core body 11. At least the puncture tip 12 is conductive and is configured to receive energy released by the sheath via wireless transmission. Upon receiving the energy, the puncture tip 12 releases the energy to the target tissue, completing the puncture process.

[0035] In the prior art, the energy-generating guidewire needs to be connected to a conductive wire, resulting in an increase in the number of tail wires used in surgery. Different instruments need to be connected to an energy source, resulting in too many connecting wires, which restricts or affects the doctor's operation, which greatly affects the safety of the surgery. The puncture guidewire 1 provided in this embodiment can heat itself by receiving the energy released by the sheath. While being able to achieve guidewire puncture through the energy source, since the guidewire itself does not need to be provided with a tail wire, the impact on the doctor's operation is reduced, thereby improving the safety of the surgery. In this application, there is no specific limitation on the energy received for puncture. For example, in this embodiment, the energy may be radio frequency energy, and in other embodiments, the energy may also be pulse energy, etc.

[0036] In addition, in this embodiment, the puncture guidewire 1 further includes a polymer material layer 13 , which wraps the guidewire inner core main body section 11 and the puncture tip 12 and exposes the distal end of the puncture tip 12 .

[0037] For existing guidewire products, in order to make the guidewire core meet certain rigidity requirements, metal wire windings are often installed on the guidewire core. The applicant's research found that there is a big gap between the resistance of the metal wire winding and the guidewire core. Generally, the guidewire core resistance is about 10Ω, while the metal wire winding resistance exceeds 600Ω. The resistance threshold of the existing radio frequency instrument is about 500Ω. If it exceeds 500Ω, there is a safety hazard. Therefore, when the metal wire winding is installed on the guidewire core, higher requirements are placed on the energy meter (such as the radio frequency instrument). In this embodiment, the polymer material layer 13 is used to wrap the guidewire core. Generally, the polymer material has good electrical insulation and a certain hardness. While meeting the rigidity requirements of the guidewire core, it also does not interfere with the power supply of the guidewire core main segment 11.

[0038] The polymer material layer 13 may be made of HDPE (high-density polyethylene) or PEBAX (polyether block polyamide), which are medical polymer materials with the characteristics of stable material properties, wear resistance, electrical insulation, and good toughness.

[0039] Please continue to see Figure 1This embodiment also provides a sheath tube 2, which includes a tube body 22 and a third conductive unit 21. The third conductive unit 21 is arranged on the tube body 22, and the third conductive unit 21 is used to release energy to the puncture guide wire 1 through wireless transmission to heat the puncture head end 12 of the puncture guide wire 1.

[0040] Preferably, the sheath tube 2 further comprises a hose segment, which is arranged at the farthest end of the tube body. The hose segment can reduce the hardness of the far end of the sheath tube 2, thereby avoiding tissue damage.

[0041] In addition, preferably, the third conductive unit 21 is spaced a preset distance from the farthest end of the sheath 2 to avoid damage to tissue when the third conductive unit 21 is heated, or to avoid increasing the hardness of the far end of the sheath 2. For example, the third conductive unit 21 is arranged on the tube body of the sheath 2 rather than the hose section.

[0042] In this embodiment, the third conductive unit 21 includes a third conductive coil wound along the circumference of the tube body 22. Preferably, the third conductive coil is buried in the tube wall of the tube body 22 and is closer to the inner wall of the tube body 22 relative to the outer wall of the tube body. The third conductive coil is used to release energy to heat the puncture tip 12 of the puncture guidewire 1.

[0043] Furthermore, a first conductive wire (not shown in the figure) electrically connected to the third conductive coil is embedded in the wall of the tube body 22, the distal end of the first conductive wire is electrically connected to the third conductive coil, and the proximal end of the first conductive wire can be set in the handle of the sheath for electrical connection to an external energy meter.

[0044] In other embodiments, the third conductive unit 21 may also adopt other structural designs that can perform energy transmission, as long as it is ensured that the released energy can be used for puncture after being received by the puncture guidewire.

[0045] This embodiment also provides a puncture assembly, which includes the puncture guidewire 1 and the sheath tube 2 provided in this embodiment. The puncture guidewire 1 and the sheath tube 2 are used in combination, and the puncture guidewire 1 is movably arranged in the sheath tube 2 along its own axis.

[0046] When the puncture guidewire 1 and the sheath tube 2 are used together, the sheath tube 2 can be controlled to reach the target tissue position first, and then the puncture guidewire 1 can be controlled to move from the proximal end to the distal end of the sheath tube 2 in the sheath tube 2 until the puncture guidewire 1 passes through the sheath tube 2 and then passes through the target tissue.

[0047] In view of the puncture assembly provided in this embodiment, this embodiment also provides a puncture method, comprising the following steps:

[0048] When the puncture guidewire 1 moves in the sheath 2, energy is transmitted to the third conductive unit 21 of the sheath 2 through the first wire, so that the third conductive unit 21 releases energy to the puncture guidewire 1 by wireless charging to heat the puncture head end 12 until the puncture guidewire 1 pierces the target tissue.

[0049] When performing puncture using the puncture assembly provided in this embodiment, X-rays can be used to locate the position of the puncture guide wire 1. In order to avoid energy waste or unexpected damage, the radio frequency device can be manually turned on after the puncture guide wire 1 moves in the sheath 2 for a period of time. The time interval from the start of movement of the puncture guide wire 1 to the start of discharge of the radio frequency device can be adjusted according to actual application; the operator can start or turn off the radio frequency device in combination with X-rays and actual hand feel.

[0050] [Example 2]

[0051] To improve the effect of energy transfer, please refer to Figure 2 Unlike the first embodiment, in this embodiment, conductive units are provided on the guidewire core main section and the puncture tip to increase conductivity. Therefore, the puncture guidewire 1 provided in this embodiment further includes a first conductive unit 111 and a second conductive unit 121. The first conductive unit 111 is provided on the guidewire core main section 11, and the second conductive unit 121 is provided on the puncture tip 12. Both the first conductive unit 111 and the second conductive unit 121 can increase the conductivity of the puncture guidewire 1, thereby improving the energy transmission effect between the guidewire and the sheath.

[0052] Further, such as Figure 2 As shown, in order to achieve final puncture without wasting energy, the first conductive unit 111 can be provided only at the distal end of the guidewire core main section 11, with a first set length along the axial direction of the guidewire core main section 11, and the second conductive unit 121 can be provided only at the proximal end of the puncture tip end 12, with a second set length along the axial direction of the puncture tip end. Optionally, the first conductive unit 111 and the second conductive unit 121 can also be integrally formed.

[0053] The puncture guidewire in this embodiment differs from the puncture guidewire in the first embodiment only in the arrangement of the first conductive unit 111 and the second conductive unit 121 . Therefore, the similarities are not described again.

[0054] In the present application, the specific form of electrical conduction implemented by the first conductive unit 111 and the second conductive unit 121 does not constitute a limitation to the above two embodiments. For example, in this embodiment, preferably, the first conductive unit 111 may include a first conductive coil, and the second conductive unit 121 may include a second conductive coil, and the first conductive coil and the second conductive coil are respectively arranged around the circumference of the guidewire core main body segment and the puncture head end. This method can most effectively perform wireless energy transmission and has higher safety. Of course, in some other embodiments, the first conductive unit 111 and the second conductive unit 121 may also include a conductive coating applied to the periphery of the guidewire core main body segment and the puncture head end, respectively. In this case, the current requirements for the transmission of the third conductive unit 21 will be higher, and a certain intensity needs to be achieved.

[0055] In other embodiments, the puncture guidewire may also include only the first conductive unit 111 or only the second conductive unit 121. When the puncture guidewire includes only the first conductive unit 111, the guidewire core main section 11 and the puncture tip 12 are electrically connected and both have conductivity; and when the puncture guidewire includes only the second conductive unit 121, the puncture tip 12 has conductivity, and the guidewire core main section 11 may or may not have conductivity, as long as it can ensure that the puncture tip 12 can ultimately obtain energy for puncture through wireless transmission.

[0056] The puncture guidewire in the above embodiment is also suitable for cooperating with the sheath tube in the first embodiment and combining into a puncture assembly to implement the same puncture method as in the first embodiment.

[0057] For the puncture guidewires in Examples 1 and 2, the doctor can manually turn on or off the energy transmission of the third conductive unit 21 in the sheath. For example, when the operator presses the puncture tip of the guidewire against the atrial septum, he or she can feel resistance. At this time, the doctor can choose to turn on the third conductive unit 21 in the sheath, thereby causing the guidewire tip to start heating and achieve puncture through wireless transmission. After the puncture guidewire passes through the atrial septum, the operator manually turns off the conduction of the third conductive unit 21. The turning on and off of the conduction of the third conductive unit 21 can be achieved by an operating button set on the sheath handle, which is not described in detail in the present invention.

[0058] [Example 3]

[0059] The puncture guide wire in this embodiment is similar to the puncture guide wire in embodiment 1, and the similarities are not repeated here. Figure 3As shown, the puncture guidewire 1 also includes an insulating segment 14, and the puncture head end 12 is connected to the distal end of the guidewire inner core main body segment 11 through the insulating segment 14. Through this design, automatic termination of wireless energy transmission can be achieved. Specifically, since the puncture head end 12 is separated from the guidewire inner core main body segment 11 by the insulating segment 14, when the puncture guidewire 1 passes toward the proximal end of the sheath 2, and the insulating segment 14 at the distal end of the puncture head end 12 is axially away from the third conductive unit 21 until it is completely offset, the third conductive unit 21 will automatically stop heating the puncture head end 12, thereby achieving semi-automatic control of energy transmission and further improving the safety of the operation.

[0060] The insulating segment 14 can be made of a polymer material, such as medical polymer materials such as HDPE or PEBAX, which have the characteristics of stable material properties, wear resistance, electrical insulation, and good toughness. In actual processing, the insulating segment and the polymer material layer 13 can be integrally formed through processes such as extrusion molding and reflow welding.

[0061] [Example 4]

[0062] The puncture guide wire in this embodiment is similar to the puncture guide wire in the second embodiment, and the similarities are not repeated here. Figure 4 As shown, the puncture guidewire 1 further includes an insulating segment 14, through which the puncture tip 12 is connected to the distal end of the guidewire inner core main body segment 11. Through appropriate size design, it can be achieved that when the insulating segment 14 moves toward the distal end of the sheath tube 2 and completely overlaps with the third conductive unit 21 of the sheath tube 2, the distal end of the puncture tip 12 begins to pass through the sheath tube 2. It can be understood that the "overlap" here refers to the third conductive unit 21 covering the insulating segment 14 on an axial projection surface of the puncture guidewire.

[0063] The insulating segment 14 can be made of a polymer material, such as medical polymer materials such as HDPE or PEBAX, which have the characteristics of stable material properties, wear resistance, electrical insulation, and good toughness. In actual processing, the insulating segment 14 and the polymer material layer 13 can be integrally formed through processes such as extrusion molding and reflow welding.

[0064] See Figure 4 Different from the second embodiment, in this embodiment, when the puncture guidewire 1 includes the first conductive unit 111 and the second conductive unit 121, since the first conductive unit 111 is provided at the distal end of the guidewire inner core main body segment 11 and the second conductive unit 121 is provided at the proximal end of the puncture head end 12, the first conductive unit 111 and the second conductive unit 121 are connected by the insulating segment 14, and the two are not integrally formed at this time.

[0065] Since the conductivity of the insulating segment 14 is lower than the conductivity of the first conductive unit 111 on the guidewire inner core main body segment 11 and the second conductive unit 121 on the puncture head end 12, when the puncture guidewire 1 moves from the proximal end to the distal end of the sheath 2 in the sheath 2, the change in the relative position between the puncture guidewire 1 and the third conductive unit 21 of the sheath 2 causes the electromagnetic signal generated between the puncture guidewire 1 and the sheath 2 to change. Therefore, the relative position between the puncture guidewire 1 and the sheath 2 can be judged by the change in the electromagnetic signal between the puncture guidewire 1 and the sheath 2.

[0066] Based on the puncture guidewire 1 and the sheath tube 2 provided in this embodiment, this embodiment also provides a puncture assembly, which includes the puncture guidewire 1 and the sheath tube 2 provided in this embodiment. The puncture guidewire 1 and the sheath tube 2 are used in combination, and the puncture guidewire 1 is movably arranged in the sheath tube 2 along its own axis.

[0067] The puncture guidewire 1 moves from the proximal end to the distal end of the sheath 2 in the sheath 2. When the second conductive unit 121 partially overlaps the third conductive unit 21, an electromagnetic signal is generated between the sheath 2 and the puncture guidewire 1, and the electromagnetic signal gradually increases. When the second conductive unit 121 completely overlaps the third conductive unit 21, the electromagnetic signal between the sheath 2 and the puncture guidewire 1 reaches a maximum. Then, the insulating section 14 begins to partially overlap the third conductive unit 21, and the electromagnetic signal between the sheath 2 and the puncture guidewire 1 gradually decreases. When the insulating section 14 completely overlaps the third conductive unit 21, the electromagnetic signal between the sheath 2 and the puncture guidewire 1 decreases to a minimum value. Then, when the first conductive unit 111 begins to partially overlap the third conductive unit 21, the electromagnetic signal between the sheath 2 and the puncture guidewire 1 gradually increases again. That is, based on the above-described design of the third conductive unit 21 of the sheath 2, and the first conductive unit 111, the insulating segment 14, and the second conductive unit 121 of the puncture guidewire 1, during the movement of the puncture guidewire 1 within the sheath 2, the electromagnetic signal between the two exhibits a pattern of first increasing, then decreasing, and then increasing again. Based on this pattern, the position of the puncture guidewire 1 within the sheath 2 can be determined by monitoring changes in the electromagnetic signal between the two. Preferably, the axial length L2 of the insulating segment 14 is no greater than the axial length L1 of the third conductive unit 21, so that the electromagnetic signal between the sheath 2 and the puncture guidewire 1 decreases to a minimum value and then immediately increases again. In this way, the third conductive unit 21 can be precisely controlled to stop transmitting energy based on the node of change in the electromagnetic signal, thereby improving the accuracy of the monitoring device's monitoring of changes in the electromagnetic signal between the sheath 2 and the puncture guidewire 1 to determine whether to stop transmitting energy to the third conductive unit 21.

[0068] In view of this, this embodiment further provides an electronic device, which is used to connect to the puncture assembly provided in this embodiment. When receiving an operation instruction, the electronic device performs the following steps:

[0069] monitoring the magnitude of the electromagnetic signal between the sheath tube 2 and the puncture guidewire 1 when the puncture guidewire 1 moves in the sheath tube 2;

[0070] When an electromagnetic signal is detected between the sheath tube 2 and the puncture guidewire 1, energy is transmitted to the third conductive unit 21, so that the third conductive unit 21 releases energy to the puncture guidewire 1 to heat the puncture tip 12; and

[0071] Based on the monitored electromagnetic signal size generated between the sheath 2 and the puncture guidewire 1, it is continuously determined whether the insulating section 14 and the third conductive unit 21 are completely overlapped. If so, energy transmission to the third conductive unit 21 is stopped; if not, energy transmission to the third conductive unit 21 is continued.

[0072] Specifically, during product design, the electromagnetic signal generated when the insulating segment 14 and the third conductive unit 21 completely overlap can be repeatedly tested multiple times to obtain a range of electromagnetic signal magnitudes when the insulating segment 14 and the third conductive unit 21 completely overlap. Once the monitored electromagnetic signal magnitude falls within this range, it is considered that the insulating segment 14 and the third conductive unit 21 have completely overlapped.

[0073] When performing the above puncture process of this embodiment, as described in Example 1, the third conductive unit 21 can be electrically connected to an external radio frequency device via a first wire, and the energy generated by the radio frequency device is transmitted to the third conductive unit 21 via the first wire, so that the third conductive unit 21 releases energy to the puncture guidewire 1. In addition, in this embodiment, the third conductive unit 21 can also be electrically connected to an external electromagnetic signal monitoring device via a second wire, and the electromagnetic signal generated between the sheath 2 and the puncture guidewire 1 is transmitted to the electromagnetic signal monitoring device via the second wire. In this way, the relative position between the puncture guidewire and the sheath can be determined by the change in the electromagnetic signal between the puncture guidewire and the sheath, thereby avoiding the risk of cancer caused by the use of X-ray positioning.

[0074] In summary, in the puncture guidewire, sheath, puncture assembly and electronic device provided in the embodiment of the present invention, the puncture guidewire is used in conjunction with the sheath, and the puncture guidewire includes a guidewire inner core main body section and a puncture head end, and the puncture head end is connected to the distal end of the guidewire inner core main body section, and at least the puncture head end is conductive and is used to receive the energy released by the sheath through wireless transmission to perform puncture; the sheath includes a tube body and a third conductive unit provided on the tube body, and the third conductive unit is used to release energy to the puncture guidewire through wireless transmission to heat the puncture head end of the puncture guidewire. In this way, when the puncture assembly composed of the puncture guidewire and the sheath is used for puncture, the guidewire puncture is achieved through the energy source. Since the guidewire itself does not need to be provided with a tail wire, the impact on the doctor's operation is reduced, and the safety of the operation is improved. In addition, when the puncture assembly is used for puncture, the energy released by the sheath to the puncture guidewire makes it possible to use the change of electromagnetic signal to determine the relative position between the puncture guidewire and the sheath, thereby avoiding the cancer risk brought by the use of X-ray positioning.

[0075] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other. In addition, the different parts between the various embodiments can also be used in combination with each other, and the present invention is not limited to this.

[0076] Furthermore, it should be recognized that although the present invention has been disclosed above with reference to preferred embodiments, the above embodiments are not intended to limit the present invention. Any person skilled in the art can utilize the above disclosed technical content to make many possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify the technical solution of the present invention into equivalent embodiments with equivalent changes. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A puncture assembly, characterized in that: include: A puncture guidewire and a sheath, wherein the puncture guidewire is movably arranged along its own axis through the sheath and is used in conjunction with the sheath; The puncture guidewire comprises: a guidewire inner core main body section and a puncture tip end, wherein the puncture tip end is connected to the distal end of the guidewire inner core main body section, and at least the puncture tip end is conductive and is used to receive energy released by the sheath tube through wireless transmission to perform puncture; The sheath comprises a tube body and a third conductive unit provided on the tube body, wherein the third conductive unit is used to release energy to the puncture guidewire by wireless transmission to heat the puncture tip of the puncture guidewire; The puncture guidewire also includes an insulating section, and the puncture head end is connected to the distal end of the guidewire inner core main section through the insulating section. When the insulating section completely overlaps with the third conductive unit of the sheath tube, the distal end of the puncture head end is located outside the sheath tube.

2. The puncture assembly according to claim 1, characterized in that The puncture guidewire further includes a first conductive unit, which is arranged at the distal end of the guidewire inner core main body segment. The guidewire inner core main body segment is also conductive, and the guidewire inner core main body segment is electrically connected to the puncture head end.

3. The puncture assembly according to claim 1 or 2, characterized in that: The puncture guidewire further includes a second conductive unit, which is arranged at the proximal end of the puncture head.

4. The puncture assembly according to claim 2, characterized in that The first conductive unit includes a first conductive coil or a conductive coating, and the first conductive unit is arranged along the circumference of the guidewire inner core main body segment.

5. The puncture assembly according to claim 3, characterized in that: The second conductive unit includes a second conductive coil or a conductive coating, and the second conductive unit is arranged along the circumference of the puncture head end.

6. The puncture assembly according to claim 1, characterized in that The puncture guidewire further comprises a polymer material layer, which wraps the guidewire inner core main body section and the puncture head end and exposes the distal end of the puncture head end.

7. The puncture assembly according to claim 1, wherein: The puncture guidewire further includes a first conductive unit and a second conductive unit. The first conductive unit is arranged at the distal end of the guidewire inner core main body segment, and the second conductive unit is arranged at the proximal end of the puncture head end. The first conductive unit and the second conductive unit are integrally formed.

8. The puncture assembly according to claim 1, wherein: The third conductive unit is spaced apart from the distal end of the sheath tube by a preset distance.

9. The puncture assembly according to claim 8, characterized in that The third conductive unit includes a third conductive coil wound along the circumference of the tube and a first conductive wire electrically connected to the third conductive coil.

10. The puncture assembly according to claim 9, characterized in that The third conductive coil is arranged inside the tube wall of the tube body and is closer to the inner wall of the tube body than to the outer wall of the tube body.

11. An electronic device, used to connect to the puncture assembly according to any one of claims 1 to 10, characterized in that: When the electronic device receives the operation instruction, it performs the following steps: monitoring the magnitude of the electromagnetic signal between the sheath and the puncture guidewire when the puncture guidewire moves in the sheath; When an electromagnetic signal is detected between the sheath and the puncture guidewire, energy is transmitted to the third conductive unit, so that the third conductive unit releases energy to the puncture guidewire to heat the puncture tip; as well as, According to the monitored electromagnetic signal generated between the sheath and the puncture guidewire, it is determined whether the insulating section and the third conductive unit are completely overlapped, and then it is determined whether to stop transmitting energy to the third conductive unit.

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