Guidewire system, guidewire vibration control method and computer readable storage medium

Abstract

The present invention relates to a guidewire system, a guidewire vibration control method and a computer-readable storage medium. The guidewire system includes a drive module and a guidewire, and the drive module includes a coil assembly and a magnetic field generating part. When an alternating current is passed through the coil assembly, the coil assembly can make axial reciprocating motion in the magnetic field generated by the magnetic field generating part, thereby driving the guidewire to vibrate axially. In the guidewire system, when an alternating current is passed through the coil assembly, the coil assembly can make axial reciprocating motion in the magnetic field generated by the magnetic field generating part, thereby driving the guidewire to vibrate axially, so that the guidewire head end generates an impact force on the calcified lesion tissue, causing the calcification of the action point part of the lesion tissue to be fragmented or atomized, and can quickly penetrate the lesion tissue, improve the effectiveness and passing efficiency of passing through hard lesions, and alleviate the long operation time of CTO treatment. The present application adopts an electromagnetic moving coil to vibrate the guidewire, and there is no problem of piezoelectric crystal wear, which can extend the service life of the guidewire system and reduce costs.

Description

Technical Field

[0001] The present invention relates to the technical field of medical machinery, and in particular to a guidewire system, a guidewire vibration control method and a computer-readable storage medium. Background Art

[0002] Chronic total coronary occlusion (CTO) refers to 100% occlusion of the coronary artery lumen. This disease has a low success rate and a high incidence of complications in percutaneous coronary intervention (PCI). Currently, the main clinical treatment for this disease is to open the CTO lesion. Successful opening of the CTO lesion can relieve the patient's angina symptoms, improve left ventricular function, stabilize the electrical activity of the myocardium, and thus enhance the patient's tolerance to future coronary events.

[0003] In traditional technology, interventional treatment for CTO cannulation generally involves the surgeon delivering a thin guidewire to the vicinity of the diseased tissue with the help of imaging, and the guidewire then penetrates the CTO tissue under a certain force for cannulation. Among them, devices such as piezoelectric transducers can be used to drive the end of the guidewire to vibrate to promote direct penetration of the CTO. Its working mechanism has a jackhammer effect, which does not require a large penetration force to effectively penetrate the CTO tissue, and will not cause damage to normal tissue, thereby improving the overall safety and stability of the system. However, the piezoelectric crystal of the piezoelectric transducer will wear out during use, resulting in a shorter service life and higher cost of the piezoelectric transducer. Summary of the invention

[0004] Based on this, it is necessary to provide a guidewire system, a guidewire vibration control method and a computer-readable storage medium to address the above technical problems.

[0005] A guidewire system includes a drive module and a guidewire, wherein the drive module includes a coil assembly and a magnetic field generating component. When an alternating current is passed through the coil assembly, the coil assembly can perform axial reciprocating motion in the magnetic field generated by the magnetic field generating component, thereby driving the guidewire to vibrate axially.

[0006] In one embodiment, the coil assembly includes a coil and a coil frame, the coil is disposed on the coil frame, and the coil frame is connected to the end of the guide wire.

[0007] In one embodiment, an axial guide groove is provided on the coil frame, and the end of the magnetic field generating element is located in the axial guide groove, so that the coil frame can perform axial reciprocating motion along the magnetic field generating element, and the coil is wound on the outer wall of the coil frame.

[0008] In one embodiment, the coil assembly further includes a connecting rod, a head end of which is connected to a terminal end of the guide wire, and the terminal end of the connecting rod sequentially passes through the magnetic field generating element and the axial guide groove to be connected to the coil frame.

[0009] In one embodiment, the magnetic field generating element includes a large diameter section and a small diameter section connected in sequence along the direction from the head end to the tail end, the outer diameter of the large diameter section is greater than the outer diameter of the small diameter section, the outer diameter of the large diameter section is greater than the groove width of the axial guide groove, and the coil frame can perform axial reciprocating motion along the small diameter section.

[0010] In one embodiment, the coil assembly further includes a yoke disposed on the coil frame, and the yoke is distributed around the coil.

[0011] In one embodiment, the coil assembly further includes a shock absorbing member disposed between the coil frame and the magnetic field generating member.

[0012] In one embodiment, the shock absorbing member is a spring.

[0013] In one embodiment, the driving module further includes a shell, the coil assembly and the magnetic field generating element are both disposed in the shell, and the end of the guide wire penetrates into the shell and is connected to the coil assembly.

[0014] In one embodiment, the outer diameter of the tip end of the guide wire gradually decreases in the direction away from the magnetic field generating element.

[0015] In one embodiment, the tip end of the guide wire is made of a thermosensitive material, and the hardness of the thermosensitive material at a first preset temperature is greater than the hardness at a second preset temperature, wherein the first preset temperature is greater than the second preset temperature.

[0016] In one embodiment, the tip end surface of the guide wire is coated with a developing layer.

[0017] In one embodiment, the guide wire system further includes a control module, and the control module is used to pass the alternating current into the coil assembly and adjust the frequency of the alternating current.

[0018] In one embodiment, the control module is provided with an adjustment button, and the control module adjusts the frequency of the alternating current when a pressing operation on the adjustment button is detected.

[0019] In one embodiment, the control module is provided with a display unit, and the display unit is used to display the frequency of the alternating current.

[0020] A guidewire vibration control method implemented by using a guidewire system as described in any one of the above, comprising:

[0021] An alternating current is supplied to the coil assembly of the guide wire system, so that the coil assembly performs axial reciprocating motion in the magnetic field generated by the magnetic field generating element of the guide wire system, thereby driving the guide wire of the guide wire system to vibrate axially.

[0022] A computer-readable storage medium stores a computer program, which implements the steps of the guidewire vibration control method described above when executed by a processor.

[0023] The above-mentioned guidewire system, guidewire vibration control method and computer-readable storage medium, when an alternating current is passed through the coil assembly, can make axial reciprocating motion in the magnetic field generated by the magnetic field generating element, thereby driving the guidewire to vibrate axially, so that the tip end of the guidewire generates an impact force on the calcified lesion tissue (such as CTO tissue), causing the calcification at the point of action of the lesion tissue to be fragmented or atomized, which can quickly penetrate the lesion tissue, improve the effectiveness and efficiency of passing through hard lesions, and alleviate the problem of long CTO treatment surgery; and the present application adopts an electromagnetic moving coil to make the guidewire vibrate, and there is no problem of piezoelectric crystal wear, which can extend the service life of the guidewire system and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of a guide wire system provided in one embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the structure of a driving module provided by an embodiment of the present invention;

[0026] Figure 3 A schematic structural diagram of a guide wire provided in one embodiment of the present invention.

[0027] The reference numerals in the accompanying drawings are described as follows:

[0028] 100. Drive module; 110. Coil assembly; 111. Coil; 112. Coil skeleton; 112a. Axial guide groove; 113. Connecting rod; 114. Shock absorber; 120. Magnetic field generating element; 121. Large diameter section; 122. Small diameter section; 130. Housing; 200. Guide wire; 210. Developing layer; 300. Control module; 310. Adjustment button; 320. Display unit. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method. The "end" and "head end" of each component in this application only indicate relative positional relationships. The "end" refers to the end that is relatively close to the operator when the component is operated during surgery, and the "head end" refers to the end that is relatively far away from the operator.

[0035] See also Figure 1 , Figure 1 The schematic diagram of the structure of the guide wire system in one embodiment of the present invention is shown. The guide wire system provided in one embodiment of the present invention includes a connected driving module 100 and a guide wire 200. Further, the driving module 100 includes a coil assembly 110 and a magnetic field generating element 120. When an alternating current is passed through the coil assembly 110, the coil assembly 110 can perform axial reciprocating motion in the magnetic field generated by the magnetic field generating element 120, thereby driving the guide wire 200 to vibrate axially.

[0036] In the guidewire system as described above, the coil assembly 110 can make axial reciprocating motion in the magnetic field generated by the magnetic field generating element 120 when an alternating current is passed through it, thereby driving the guidewire 200 to vibrate axially, so that the head end of the guidewire 200 generates an impact force on the calcified lesion tissue (such as CTO tissue), causing the calcification at the point of action of the lesion tissue to be fragmented or atomized, which can quickly penetrate the lesion tissue, improve the effectiveness and efficiency of passing through hard lesions, and alleviate the problem of long CTO treatment surgery. In addition, the present application uses an electromagnetic moving coil to vibrate the guidewire 200, and there is no problem of piezoelectric crystal wear, which can extend the service life of the guidewire system and reduce costs.

[0037] The following is a description of the various components of the guidewire system:

[0038] (1) Drive module 100

[0039] (1.1) Coil assembly 110

[0040] like Figure 2 As shown, in some embodiments of the present invention, the coil assembly 110 may include a coil 111 and a coil frame 112, the coil 111 is disposed on the coil frame 112, and the coil frame 112 is connected to the end of the guide wire 200. The coil assembly 110 of this structure facilitates the fixation of the coil 111 and the guide wire 200. It should be noted that Figure 2The double arrow in represents the movement direction of the coil assembly 110 .

[0041] Optionally, the coil 111 may be a copper wire, which may generate an alternating magnetic field when an alternating current flows therethrough, thereby generating an attraction or repulsion effect with the magnetic field generating member. The frequency of the alternating current may be adjustable within a range of 0 kHz to 30 kHz.

[0042] Optionally, the coil skeleton 112 may be made of insulating material, for example, high-frequency dielectric material such as polytetrafluoroethylene and polystyrene, so as to reduce loss.

[0043] Furthermore, if Figure 2 As shown, in some embodiments of the present invention, an axial guide groove 112a may be provided on the coil skeleton 112, and the end of the magnetic field generating element 120 is located in the axial guide groove 112a, so that the coil skeleton 112 can make axial reciprocating motion along the magnetic field generating element 120, and the coil 111 is wound on the outer wall of the coil skeleton 112. The axial guide groove 112a can guide the movement of the coil skeleton 112, so that the coil skeleton 112 can make axial reciprocating motion along the magnetic field generating element 120, which is conducive to the axial vibration of the guide wire 200; in addition, by providing the axial guide groove 112a on the coil skeleton 112, the coil 111 can be wound on the outer wall of the coil skeleton 112, so that the coil 111 does not need to be arranged on the inner wall of the axial guide groove 112a, thereby avoiding friction between the coil 111 and the magnetic field generating element 120, and facilitating the electrical connection of the coil 111 with external equipment. Of course, the magnetic field generating element 120 may also be provided with the axial guide groove, and the coil frame 112 may perform axial reciprocating motion along the axial guide groove. As an example, the coil 111 may be wound on the outer wall of the coil frame 112 by a multi-layer winding method.

[0044] It should be noted that the profile of the axial guide groove 112a is adapted to the outer profile of the magnetic field generating member 120. For example, if the magnetic field generating member 120 is cylindrical, the axial guide groove 112a is a circular groove whose size matches the size of the magnetic field generating member 120. For another example, if the magnetic field generating member 120 is a polygonal column, the axial guide groove 112a is a polygonal groove whose size matches the size of the magnetic field generating member 120. The groove width of the axial guide groove 112a can be slightly larger than the outer diameter of the magnetic field generating member 120, so as to reduce the friction between the coil skeleton 112 and the magnetic field generating member 120.

[0045] Furthermore, in some embodiments of the present invention, Figure 2As shown, the coil assembly 110 further includes a connecting rod 113, the head end of the connecting rod 113 is connected to the end of the guide wire 200, and the end of the connecting rod 113 passes through the magnetic field generating element 120 and the axial guide groove 112a in sequence to be connected to the coil frame 112. The connecting rod 113 facilitates the connection between the guide wire 200 and the coil frame 112.

[0046] It is understandable that a through hole is provided on the magnetic field generating element 120 for the connecting rod 113 to pass through, and the aperture of the through hole may be slightly larger than the outer diameter of the connecting rod 113 to avoid friction between the connecting rod 113 and the magnetic field generating element 120 when the coil skeleton 112 makes axial reciprocating motion.

[0047] Optionally, the end of the connecting rod 113 can be connected to the coil frame 112 by bonding or threading. The material of the connecting rod 113 can be the same as or different from that of the coil frame 112.

[0048] In some embodiments of the present invention, the coil assembly 110 may further include a yoke (not shown in the drawings) disposed on the coil frame 112, and the yoke is distributed around the coil 111. The yoke can reduce the magnetic leakage in the magnetic circuit, so as to provide a greater thrust to the guide wire 200 under the same alternating current, so that the guide wire 200 can pass through the diseased tissue more quickly, and can also reduce the alternating current as much as possible when driving the guide wire 200 to achieve the same vibration intensity.

[0049] Optionally, the yoke may be made of soft iron, A3 steel, soft magnetic alloy, etc. The yoke may be in sheet form and may be arranged on the coil frame 112 by bonding, snapping, fasteners (such as screws), etc. The specific distribution of the yoke on the coil frame 112 may be arranged according to specific circumstances. For example, the yoke may be distributed on both sides of the coil 111 along the axial direction.

[0050] like Figure 2 As shown, in some embodiments of the present invention, the coil assembly 110 further includes a shock absorbing member 114 disposed between the coil frame 112 and the magnetic field generating member 120. The shock absorbing member 114 can reduce the vibration of the driving module 100 and also reduce the noise of the driving module 100.

[0051] Optionally, the shock absorber 114 may be a spring. A first limiting column (not shown in the drawings) may be provided at the bottom of the axial guide groove 112a, a second limiting column (not shown in the drawings) may be provided on the wall of the magnetic field generating member close to the axial guide groove 112a, the head end of the shock absorber 114 may be sleeved on the second limiting column, and the end of the shock absorber 114 may be sleeved on the first limiting column. The limiting of the first limiting column and the second limiting column can prevent the shock absorber 114 from falling off.

[0052] (1.2) Magnetic field generating element 120

[0053] On the premise that the coil frame 112 is provided with an axial guide groove 112a, as Figure 2 As shown, in some embodiments of the present invention, the magnetic field generating element 120 may include a large diameter section 121 and a small diameter section 122 connected in sequence along the direction from the head end to the tail end, the outer diameter of the large diameter section 121 is larger than the outer diameter of the small diameter section 122, the outer diameter of the large diameter section 121 is larger than the slot width of the axial guide slot 112a, and the coil skeleton 112 may perform axial reciprocating motion along the small diameter section 122. The magnetic field generating element 120 of this structure can limit the axial motion amplitude of the coil skeleton 112,

[0054] It should be noted that the outer diameter of the small diameter section 122 is smaller than or equal to the groove width of the axial guide groove 112 a , and the axial length of the small diameter section 122 is greater than or equal to the groove depth of the axial guide groove 112 a .

[0055] In some embodiments of the present invention, the magnetic field generating member 120 may be a magnet. It is understood that when the coil frame 112 performs axial reciprocating motion, the magnetic field generating member 120 is stationary.

[0056] (1.3) Housing 130

[0057] like Figure 2 As shown, in some embodiments of the present invention, the driving module 100 further includes a housing 130, the coil assembly 110 and the magnetic field generating element 120 are both disposed in the housing 130, and the end of the guide wire 200 penetrates into the housing 130 and is connected to the coil assembly 110. The housing 130 can be held by the operator, which is conducive to the smooth progress of the operation.

[0058] Optionally, the length of the housing 130 is 15 cm to 30 cm (e.g., 15 cm, 20 cm, 25 cm, 30 cm, etc.), and the diameter is 10 mm to 30 mm (e.g., 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, etc.). The size of the housing 130 is set in this way to facilitate the operator to hold. The housing 130 can be an injection molded part. In this way, the weight of the drive module 100 can be reduced, which can further facilitate the operator to hold. Regarding the shape of the housing 130, it can be cylindrical or polygonal, and the embodiment of the present invention does not impose any specific restrictions, as long as it is convenient for the operator to hold.

[0059] Optionally, the magnetic field generating element 120 may be fixed in the housing 130 by bonding, clamping, or the like.

[0060] (2) Guidewire 200

[0061] It is understandable that the guidewire 200 is used to be inserted into the patient's blood vessel so that the operator can use the guidewire system of the present invention to open the chronic total occlusion of the coronary artery in the patient's body. Among them, the material of the main body of the guidewire 200 can be processed from one or more metal materials or polymers, and is usually made of stainless steel, nickel-platinum alloy, nickel-titanium alloy, polyurethane, polytetrafluoroethylene and other materials with relatively balanced flexibility and support. It should be noted that the main body of the guidewire 200 refers to the part of the guidewire 200 other than the head end.

[0062] In some embodiments of the present invention, the length of the guidewire 200 may be 1.5m to 3.5m (for example, 1.5m, 2m, 2.5m, 3m, 3.5m, etc.), and the diameter of the guidewire 200 may be 0.1mm to 0.5mm (for example, 0.1mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, etc.). The specific size can be selected according to the actual usage requirements of the application scenario to select an appropriate length and diameter to meet sufficient access operation length, pushing performance within the blood vessel, and penetration performance of the tip of the guidewire 200.

[0063] like Figure 3 As shown, in some embodiments of the present invention, the outer diameter of the end of the guide wire 200 gradually decreases in the direction away from the magnetic field generating element 120. The end of the guide wire 200 is arranged in this way, so that the end of the guide wire 200 is conveniently threadedly connected with the threaded member (such as a nut) on the connecting rod 113 using a threaded member (such as a screw).

[0064] like Figure 3 As shown, in some embodiments of the present invention, the outer diameter of the tip of the guidewire 200 gradually decreases in the direction away from the magnetic field generating element 120. Since the guidewire 200 needs to enter a blood vessel with multiple bends through the radial artery or peripheral artery, the guidewire 200 as a whole, especially the tip of the guidewire 200, needs to have good flexibility. Too high a tip hardness may not be able to pass through a bend or cause blood vessel damage during transportation. By setting the outer diameter of the tip of the guidewire 200, the flexibility of the tip of the guidewire 200 can be improved.

[0065] Optionally, the variable diameter length of the guide wire 200 head end may be 3 cm to 10 cm (e.g., 3 cm, 4 cm, 5 cm, 6 cm, 7 cm, 8 cm, 9 cm, 10 cm, etc.), and the minimum diameter of the guide wire 200 head end is half of the diameter of the guide wire 200 body. In this way, it can be ensured that the guide wire 200 head end can smoothly pass through the diseased tissue.

[0066] In some embodiments of the present invention, the tip of the guide wire 200 may be made of a thermosensitive material, and the thermosensitive material has a greater hardness at a first preset temperature than at a second preset temperature, wherein the first preset temperature is greater than the second preset temperature. During the in vivo delivery of the guide wire 200, the guide wire 200 has a relatively low temperature, and the tip of the guide wire 200 exhibits good flexibility, which facilitates delivery; during the treatment process, the guide wire 200 has a higher temperature, and the tip of the guide wire 200 has an increased hardness, which facilitates the tip of the guide wire 200 to quickly pass through the lesion.

[0067] Optionally, the tip end material of the guide wire 200 may be selected from at least one of thermosetting resin, polyurethane, and polytetrafluoroethylene.

[0068] like Figure 3 As shown, in some embodiments of the present invention, the head end surface of the guide wire 200 may be coated with a developing layer 210. The developing layer 210 can meet the requirement of positioning the guide wire 200.

[0069] Optionally, the developing layer 210 may be made of a metal material such as gold or platinum, and may be coated on the surface of the tip of the guide wire 200 by electroplating.

[0070] It should be noted that after the tip end surface of the guide wire 200 is coated with the developing layer 210 , the outer diameter of the tip end of the guide wire 200 may be the same as the outer diameter of the main body of the guide wire 200 , which facilitates the transportation of the guide wire 200 .

[0071] (3) Control module 300

[0072] like Figure 1 As shown, in some embodiments of the present invention, the guide wire system may further include a control module 300, which is used to pass an alternating current into the coil assembly 110 and adjust the frequency of the alternating current. As an example, the control module 300 may be electrically connected to the coil 111 of the coil assembly 110 via a wire. The control module 300 may adjust the frequency of the alternating current so that the coil 111 is not limited by the resonant frequency during use, and the vibration frequency of the guide wire 200 may be adjusted according to different surgical needs or different stages of the surgery, thereby improving the safety and effectiveness of the surgery.

[0073] It should be noted that the frequency of the output voltage of the control module 300 is consistent with the frequency of the output current (i.e., the alternating current supplied to the coil assembly 110), and the vibration frequency of the guide wire 200 can be adjusted by adjusting the frequency of the output voltage. In some embodiments, the control module 300 can also be used to adjust the amplitude, duty cycle, and duration of the output voltage, thereby changing the vibration mode of the guide wire 200, i.e., changing the amplitude, duty cycle, and duration of the wire's vibration.

[0074] Furthermore, if Figure 1As shown, in some embodiments of the present invention, the control module 300 is provided with an adjustment button 310, and the control module 300 adjusts the frequency of the alternating current when detecting a pressing operation on the adjustment button 310. The operator can set the frequency of the alternating current to a preset frequency by pressing the adjustment button 310, so as to facilitate the operation.

[0075] Optionally, the control module 300 includes a detection unit, a processing unit and a control unit. The detection unit is used to detect a pressing operation on the adjustment button 310 and send the detection result to the processing unit; the processing unit is used to send a command signal to the control unit when the detection unit detects a pressing operation on the adjustment button 310; the control unit adjusts the frequency of the alternating current according to the command signal.

[0076] Optionally, the adjustment button 310 can be a mechanical button or a touch button. The number of the adjustment buttons 310 can be two, one of which can be used to reduce the frequency of the alternating current, and the other can be used to increase the frequency of the alternating current. In order to distinguish the two adjustment buttons 310, a mark can be set on the adjustment button 310, for example, a "+" sign is added to one of the adjustment buttons 310 for increasing the frequency of the alternating current, and a "-" sign is added to the other adjustment button 310 for reducing the frequency of the alternating current. Of course, the number of the adjustment buttons 310 can also be 10, and these 10 adjustment buttons 310 can be used to represent the 10 numbers "0", "1", "2", "3", "4", "5", "6", "7", "8", and "9" respectively. The operator can set the specific frequency of the alternating current by pressing different adjustment buttons 310.

[0077] Furthermore, if Figure 1 As shown, in some embodiments of the present invention, the control module 300 is provided with a display unit 320, and the display unit 320 is used to display the frequency of the alternating current. The display unit 320 can display the frequency of the alternating current, so that the operator can adjust the frequency of the alternating current. Of course, the display unit 320 can also be used to display information such as product specifications, usage time, abnormal prompts, etc.

[0078] Optionally, a user interaction page may be displayed on the display unit 320, and the adjustment button 310 is displayed on the user interaction page. The display unit 320 may be a liquid crystal display screen.

[0079] Optionally, the control module 300 is further configured with a power supply, which is used to supply power to each unit on the control module 300. The power supply may be a battery.

[0080] The working process of the guide wire system as described above is described as follows:

[0081] Step 1: Puncture the patient's femoral artery or radial artery to open the access route for interventional surgery;

[0082] Step 2: Under CT angiography, the guide wire 200 is placed along the sheath or guide catheter near the lesion area of ​​the patient;

[0083] Step 3: The end of the guide wire 200 is fixedly connected to the coil frame 112 via the connecting rod 113;

[0084] Step 4: Setting the frequency, amplitude, duty cycle or duration of the output voltage through the control module 300, and outputting it to the driving module 100 through a wire;

[0085] Step 5: As an alternating current is applied to the coil skeleton 112, an alternating magnetic field is generated. Under the action of the fixed magnetic field generated by the magnetic field generating member, the coil skeleton 112 produces reciprocating motion. The generated mechanical vibration acts on the guide wire 200 and is transmitted to the tip end of the guide wire 200, so that the tip end of the guide wire 200 quickly penetrates the completely occluded lesion.

[0086] Step 6: withdraw the guide wire 200 along the access route, and use other relevant treatment and diagnostic instruments to evaluate the treatment effect or continue follow-up treatment.

[0087] Other embodiments of the present application also provide a guidewire vibration control method implemented using a guidewire system as described in any of the above items, the guidewire control method comprising: applying an alternating current to the coil assembly 110 of the guidewire system, so that the coil assembly 110 performs axial reciprocating motion in the magnetic field generated by the magnetic field generating element 120 of the guidewire system, thereby driving the guidewire 200 of the guidewire system to vibrate axially.

[0088] According to the above-mentioned guidewire vibration control method, when an alternating current is passed through the coil assembly 110, the coil assembly 110 can make axial reciprocating motion in the magnetic field generated by the magnetic field generating element 120, thereby driving the guidewire 200 to vibrate axially, so that the head end of the guidewire 200 generates an impact force on the calcified lesion tissue (such as CTO tissue), causing the calcification at the point of action of the lesion tissue to be fragmented or atomized, which can quickly penetrate the lesion tissue, improve the effectiveness and efficiency of passing through hard lesions, and alleviate the problem of long CTO treatment surgery. In addition, the present application uses an electromagnetic moving coil to vibrate the guidewire, and there is no problem of piezoelectric crystal wear, which can extend the service life of the guidewire system and reduce costs.

[0089] Other embodiments of the present application further provide a computer-readable storage medium having a computer program stored thereon, which implements the steps of the guidewire vibration control method described above when executed by a processor.

[0090] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A guide wire system, characterized in that: The invention comprises a driving module (100) and a guide wire (200), wherein the driving module (100) comprises a coil assembly (110) and a magnetic field generating element (120), and when an alternating current is passed through the coil assembly (110), the coil assembly (110) can perform axial reciprocating motion in the magnetic field generated by the magnetic field generating element (120), thereby driving the guide wire (200) to vibrate axially; The tip end of the guide wire (200) is made of a thermosensitive material, the hardness of the thermosensitive material at a first preset temperature is greater than the hardness at a second preset temperature, the first preset temperature is greater than the second preset temperature, wherein the guide wire is at the second preset temperature when being transported in the body, and is at the first preset temperature when passing through diseased tissue.

2. The guide wire system according to claim 1, characterized in that: The coil assembly (110) comprises a coil (111) and a coil frame (112); the coil (111) is arranged on the coil frame (112); and the coil frame (112) is connected to the end of the guide wire (200).

3. The guide wire system according to claim 2, characterized in that: An axial guide groove (112a) is provided on the coil frame (112), and the end of the magnetic field generating element (120) is located in the axial guide groove (112a), so that the coil frame (112) can perform axial reciprocating motion along the magnetic field generating element (120), and the coil (111) is wound on the outer wall of the coil frame (112).

4. The guide wire system according to claim 3, characterized in that: The coil assembly (110) further comprises a connecting rod (113), the head end of which is connected to the end of the guide wire (200), and the end of which passes through the magnetic field generating element (120) and the axial guide groove (112a) in sequence and is connected to the coil frame (112).

5. The guide wire system according to claim 3, characterized in that: The magnetic field generating element (120) comprises a large diameter section (121) and a small diameter section (122) which are connected in sequence along the direction from the head end to the tail end, the outer diameter of the large diameter section (121) is larger than the outer diameter of the small diameter section (122), the outer diameter of the large diameter section (121) is larger than the groove width of the axial guide groove (112a), and the coil skeleton (112) can perform axial reciprocating motion along the small diameter section (122).

6. The guide wire system according to claim 2, characterized in that: The coil assembly (110) further comprises a magnetic yoke arranged on the coil frame (112), wherein the magnetic yoke is distributed around the coil (111).

7. The guide wire system according to claim 2, characterized in that: The coil assembly (110) further comprises a shock absorbing member (114) arranged between the coil frame (112) and the magnetic field generating member (120).

8. The guide wire system according to claim 7, characterized in that: The shock absorbing member (114) is a spring.

9. The guide wire system according to any one of claims 1 to 8, characterized in that: The driving module (100) further comprises a housing (130), the coil assembly (110) and the magnetic field generating element (120) are both arranged in the housing (130), and the end of the guide wire (200) is inserted into the housing (130) and connected to the coil assembly (110).

10. The guide wire system according to any one of claims 1 to 8, characterized in that: The outer diameter of the head end of the guide wire (200) gradually decreases in a direction away from the magnetic field generating element (120).

11. The guide wire system according to any one of claims 1 to 8, characterized in that: The head end surface of the guide wire (200) is coated with a developing layer (210).

12. The guide wire system according to any one of claims 1 to 8, characterized in that: The guide wire system further comprises a control module (300), wherein the control module (300) is used to pass the alternating current into the coil assembly (110) and adjust the frequency of the alternating current.

13. The guide wire system according to claim 12, characterized in that: The control module (300) is provided with an adjustment button (310), and when the control module (300) detects a pressing operation on the adjustment button (310), it adjusts the frequency of the alternating current.

14. The guide wire system according to claim 12, characterized in that: The control module (300) is provided with a display unit (320), and the display unit (320) is used to display the frequency of the alternating current.

15. A guidewire vibration control method implemented by the guidewire system according to any one of claims 1 to 14, characterized in that: include: An alternating current is passed through the coil assembly (110) of the guide wire system, causing the coil assembly (110) to perform axial reciprocating motion in the magnetic field generated by the magnetic field generating element (120) of the guide wire system, thereby driving the guide wire (200) of the guide wire system to vibrate axially.

16. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the guidewire vibration control method according to claim 15 are implemented.

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