Anchoring system capable of guiding positioning

Abstract

The present application relates to the field of medical devices, and in particular to a guideable positioning anchoring system, comprising a delivery catheter, a positioning bracket arranged in the delivery catheter, an anchoring mechanism, a flexible sleeve and a guiding mechanism, wherein the positioning bracket is arranged at the distal end of the delivery catheter, and the positioning bracket is provided with a plurality of anchoring points distributed along the circumferential direction, the flexible sleeve is provided with a plurality of connection sites, and the guiding mechanism comprises a plurality of guide wires, which respectively pass through the connection sites and are connected with the anchoring points, wherein the distal end portion of the anchoring mechanism is sleeved in the flexible sleeve, and the flexible sleeve cooperates with the guide wire so that the anchoring mechanism can be guided to each anchoring point along a predetermined route and complete anchoring; the anchoring mechanism in the present invention can be guided to each anchoring point along a predetermined route and complete anchoring, without the need to repeatedly search for the position through images, and the operation is convenient and the accuracy is high.

Description

Technical Field

[0001] The present application belongs to the field of medical devices, and specifically relates to a guideable positioning anchoring system. Background Art

[0002] Minimally invasive interventional medical technology has emerged as a highly effective diagnostic and treatment method in recent years. Its advantages include minimal trauma, ease of use, precise insertion site, and minimal complications. It has become one of the most important diagnostic and treatment options for cardiovascular and cancer diseases. During interventional procedures, specialized physicians typically manually manipulate specialized devices to guide one or more slender, flexible catheters of varying shapes and functions through the complex and diverse internal environments of the patient's cardiovascular system, delivering catheters, guidewires, stents, and other devices to the intended lesion for minimally invasive treatment. Mitral valve disease is a common heart valve disease in adults. Mitral regurgitation (MR) is a serious condition affecting patients. Normally, the mitral valve in the human heart acts as a hemostatic valve, preventing the backflow of oxygen-rich blood from the lungs into the left atrium. MR occurs when the mitral valve closes improperly or becomes misaligned, significantly reducing cardiac pumping efficiency and even leading to heart failure. Mitral regurgitation is categorized as either functional or degenerative. Functional mitral regurgitation (FMR) is characterized by mitral annular dilatation, inadequate leaflet coaptation, and tethered mitral valve leaflets, resulting from left ventricular dysfunction and remodeling. The poor outcomes and high risks of surgical mitral valvuloplasty have driven the search for catheter-based and minimally invasive alternatives, such as percutaneous edge-to-edge repair, indirect annuloplasty, and direct annuloplasty. Mitral annuloplasty is one of the most common surgical procedures for FMR.

[0003] Patent US69 / 106924 discloses an internal catheter (20) extending through a cavity to a heart (42) of a subject, and a tether (69) extending distally from a first end of the tether through the internal catheter, encircling a distal portion (22) of the heart. The internal catheter is at the subject's heart, then extends proximally next to the internal catheter, terminating at a second end of the tether outside the subject, such that both ends of the tether are disposed outside the subject. An anchor (150) advances along the first portion of the tether through the internal catheter and anchors around the heart's valve annulus, such that the tether forms a ring around the valve annulus. Outside the subject, the first and second ends of the tether are slidably coupled, and the resulting slidable coupling advances toward the heart, such that the tether forms a closed ring around the valve annulus. In this solution, multiple anchoring points need to rely on medical imaging to find their positions, resulting in a very lengthy intraoperative time, which is extremely detrimental to the patient's postoperative recovery and can cause multiple complications. Furthermore, there is no guidance mechanism to guide the anchoring system during anchoring, making it difficult for the operator to accurately anchor to the target position, placing extremely high demands on the operator and resulting in a high surgical failure rate.

[0004] Therefore, technicians in this field are committed to developing a guideable anchoring system to solve the following problems: 1. When multiple anchoring is required, how to quickly and accurately deliver the anchoring system to the desired target position; 2. How the anchoring system can output anchoring needles multiple times and continuously. Summary of the Invention

[0005] The purpose of the present application is to provide a guideable anchoring system, and the new anchoring mechanism has the following advantages: 1. Pulling the anchoring mechanism back and forth can make the anchoring mechanism reach the expected anchoring position along the predetermined route formed by the flexible kit and the guide mechanism. Especially when anchoring multiple times, there is no need to repeatedly search for the position through images, and the operation is convenient and the accuracy is high; 2. After the first anchoring needle is output, the elastic part can automatically push the second anchoring needle to the distal end of the anchoring tube to continue anchoring, without the need for unnecessary operations, which can significantly save surgical time.

[0006] In order to solve the above technical problems, the present application is solved through the following technical solutions: a guideable positioning anchoring system, including a delivery catheter, a positioning bracket arranged in the delivery catheter, an anchoring mechanism, a flexible sleeve and a guiding mechanism, the positioning bracket is arranged at the distal end of the delivery catheter, and the positioning bracket is provided with a plurality of anchoring points distributed along the circumferential direction, the flexible sleeve is provided with a plurality of connection sites, the guiding mechanism includes a plurality of guide wires, and the guide wires pass through the connection sites and are connected with the anchoring points respectively, and the anchoring mechanism pushes the flexible sleeve so that the flexible sleeve cooperates with the guide wire and guides the anchoring mechanism to reach each anchoring point along a predetermined route and complete the anchoring.

[0007] As a further improvement of the present invention, the distal end portion of the anchoring mechanism is sleeved within the flexible sleeve.

[0008] As a further improvement of the present invention, during the first anchoring, the anchoring mechanism reaches the anchoring point corresponding to the first connection site along the flexible sleeve. During the second anchoring, the anchoring mechanism is withdrawn and pushed again so that the distal end of the anchoring mechanism drives the second connection site to slide along the guide wire until the distal end of the anchoring mechanism reaches the anchoring point corresponding to the second connection site.

[0009] As a further improvement of the present invention, a connecting ring is provided on the connection site, and the guide wire passes through the connecting ring and is connected to the anchoring point.

[0010] As a further improvement of the present invention, the anchoring system also includes a detachable wire, wherein the distal end of the guide wire is provided with a loop, and the distal end of the anchoring point is provided with a positioning hole. During pre-installation, the distal end of the guide wire passes through the connecting ring and the positioning hole in sequence, and the detachable wire passes through the loop in sequence to form a detachable connection.

[0011] As a further improvement of the present invention, when the detachable wire is pulled out of the ring, the guide wire, the flexible sleeve and the anchoring point are separated.

[0012] As a further improvement of the present invention, during pre-installation, the flexible sleeve is loaded into the delivery catheter in a linear state or a vertical state; and during anchoring, the anchoring mechanism is pushed so that the flexible sleeve is anchored in sequence.

[0013] As a further improvement of the present invention, a limiting ring is provided in the flexible sleeve, the limiting ring is elastic, and the limiting ring is arranged at the connection point.

[0014] As a further improvement of the present invention, the diameter of the limiting ring is smaller than the tube diameter of the anchoring mechanism, so that the anchoring mechanism will not deviate from the preset connection site when it is pushed toward the distal end again after being withdrawn.

[0015] As a further improvement of the present invention, the control handle end of the anchoring system is provided with a scale for controlling the retraction distance of the anchoring mechanism, so that after the anchoring mechanism completes the first anchoring point, the anchoring mechanism is retracted according to the preset scale distance, and the distal end of the anchoring mechanism is located between the first connection site and the second connection site, which can effectively avoid misoperation of the instrument and improve the accuracy of anchoring.

[0016] As a further improvement of the present invention, the positioning stent has a predetermined shape, wherein, when pre-installed, the positioning stent is compressed within the delivery catheter; when the distal end of the delivery catheter reaches the target position, the positioning stent is released from the delivery catheter, and the distal end of the anchoring point is located at the expected anchoring position.

[0017] As a further improvement of the present invention, an anti-interference rod is provided between the anchoring points corresponding to the first and last connection sites, wherein the distal end of the detachable wire first passes through the anti-interference rod and then passes through the ring in sequence.

[0018] As a further improvement of the present invention, the anchoring mechanism includes an anchoring tube, an inner core rod arranged inside the anchoring tube, an elastic member and a plurality of anchoring needles. The distal end of the anchoring tube is provided with an internal thread, and the outer periphery of the anchoring needle is provided with an external thread matching the internal thread. The elastic member and the plurality of anchoring needles are sleeved on the inner core rod, and rotating the inner core rod can drive the anchoring needle to rotate. When pre-installed, the plurality of anchoring needles are sequentially arranged at the distal end of the elastic member, and the elastic member is in a pre-tightened state, so that when the farthest end anchoring needle is output, the adjacent anchoring needle is automatically pushed to the farthest end of the anchoring tube by the elastic member.

[0019] As a further improvement of the present invention, the anchoring needle is provided with a through hole, and the distal end of the inner core rod is provided with a rotating sleeve that cooperates with the through hole. When the inner core rod is rotated, the rotating sleeve can drive the anchoring needle to rotate.

[0020] As a further improvement of the present invention, the inner core rod is a round rod, and the rotating sleeve is located at the internal thread of the outer tube, wherein rotating the inner core rod can drive the farthest anchoring needle to rotate, while the remaining anchoring needles remain stationary.

[0021] As a further improvement of the present invention, the anchoring system can be used in the field of atrioventricular valve replacement therapy. For example, after the atrioventricular valve prosthesis is implanted, the anchoring system can be used to anchor the atrial segment of the atrioventricular valve prosthesis to the native valve ring.

[0022] As a further improvement of the present invention, the anchoring system can also be used in the field of atrioventricular valve reduction ring plasty treatment, for example, the skeleton for the reduction ring is placed in a flexible kit and the reduction ring device is anchored to the autologous valve ring or atrial tissue through the anchoring system.

[0023] Compared with the prior art, the advantages of this application are:

[0024] 1. In the prior art, when the anchoring system needs to be anchored multiple times, it is necessary to rely on images to find the anchoring position, the intraoperative time is lengthy and the anchoring accuracy is not high; in one embodiment of the present application, the anchoring mechanism is pushed distally along the interior of the flexible sleeve, so that the farthest connection point on the flexible sleeve can slide along the guide wire and reach the corresponding connected anchoring point. At this time, the anchoring mechanism is operated to anchor the anchoring needle at the anchoring point. During the second anchoring, the anchoring mechanism is retracted and pushed distally again. At this time, the anchoring mechanism will push the second connection point on the flexible sleeve to slide along the corresponding guide wire to the corresponding anchoring point. Repeating the above operation can guide the anchoring mechanism to each anchoring point according to the predetermined route and complete the anchoring. There is no need to repeatedly search for the position through images, and the operation is convenient and the accuracy is high.

[0025] 2. Different from the prior art, in one embodiment of the present application, after the positioning stent is released, the periphery of the positioning stent can be in close contact with the diseased autologous valve ring tissue, and when the anchoring mechanism is pushed distally, the connection site on the flexible kit moves along the guide wire to the preset anchoring point, and when the distal end of the anchoring mechanism and the connection site and the anchoring point converge to the same point, the guided positioning is completed. The guiding efficiency and guidance accuracy are high, and the operation is simple. On the premise of completing accurate positioning, the intraoperative time can also be significantly shortened.

[0026] 9. Different from the prior art, in one embodiment of the present application, a detachable wire is used to connect the guide wire, the flexible kit and the anchoring points. After the anchoring mechanism completes the anchoring of all positions in sequence, the detachable wire is pulled out to separate it from each loop to separate the connection between the flexible kit and the anchoring point. The operation is convenient and reliable, and the intraoperative time can be significantly shortened.

[0027] 4. Different from the prior art, in one embodiment of the present application, a limit ring 43 is further provided in the flexible kit. The limit ring 43 is set at each connection point, which can effectively prevent the anchoring mechanism from moving excessively when pushed, and can ensure the accuracy of its anchoring position.

[0028] 5. Different from the prior art, in one embodiment of the present application, the positioning bracket has a predetermined shape, and the position of the positioning bracket after deployment is the position where the anchoring mechanism is expected to anchor. This allows the anchoring mechanism to guide the positioning bracket to various anchoring points through the guide wire and complete the anchoring after deployment.

[0029] 6. Unlike the prior art, which requires a long time for continuous anchoring, is cumbersome to operate, and may cause damage to the patient's blood vessels, in one embodiment of the present application, multiple anchoring needles are pre-installed inside the anchoring tube, and the elastic member is in a pre-tightened state. When the anchoring needle at the farthest end is rotated by the inner core rod and output to the outside of the anchoring tube, the remaining anchoring needles will be automatically pushed to the far end by the elastic member. When anchoring is needed again, the anchoring needle can be anchored at the required position by simply rotating the inner core rod. The continuous anchoring requires fewer operating steps and a shorter intraoperative time. There is no need to rotate the inner core rod for a long time to avoid possible damage to the patient's blood vessels. The device has high safety and stable performance, and has good clinical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figures 1 to 5 Schematic diagram of the structure of the anchoring system of the present invention.

[0031] Figures 6-8 It is a structural schematic diagram of the anchoring mechanism of the present invention.

[0032] Figure 9 Schematic diagram of improper mitral valve closure.

[0033] Figures 10-13 This is a working principle diagram of the anchoring system of the present invention.

[0034] Figure 14 Another embodiment is a schematic diagram.

[0035] The names of the parts indicated by the numbers in the accompanying drawings are as follows: 1-delivery catheter, 2-positioning bracket, 21-anchoring point, 211-positioning hole, 22-anti-disturbance rod, 3-anchoring mechanism, 31-anchoring tube, 311-internal thread, 32-inner core rod, 321-external thread, 33-elastic part, 34-anchoring needle, 341-through hole, 35-rotating sleeve, 4-flexible kit, 41-connection site, 42-connecting ring, 43-limiting ring, 5-guide mechanism, 51-guide wire, 52-ring, 6-detachable wire, 7-valve prosthesis, 8-sealing ring. Implementation Method

[0036] The present application is further described in detail below with reference to the accompanying drawings and embodiments.

[0037] The proximal end mentioned in this application refers to the end close to the surgical operator, and the distal end refers to the end far away from the surgical operator. Specific embodiments

[0038] like Figures 1 to 5 As shown, when the anchoring system is used for mitral valve reduction ring plasty treatment, a guideable positioning anchoring system includes a delivery catheter 1, a positioning stent 2 arranged in the delivery catheter 1, an anchoring mechanism 3, a flexible sleeve 4, a guiding mechanism 5 and a detachable wire 6, wherein the flexible sleeve 4 is provided with a skeleton that can be used for ring reduction, the positioning stent 2 is arranged at the distal end of the delivery catheter 1, and the positioning stent 2 is provided with a plurality of anchoring points 21 distributed along the circumferential direction, the positioning stent 2 has a predetermined shape (its predetermined shape matches the shape of the patient's mitral valve ring), and when pre-installed, the positioning stent 2 is compressed in the delivery catheter 1, as shown in FIG. Figure 2 As shown, when the distal end of the delivery catheter 1 reaches the target position, the positioning stent 2 is released from the delivery catheter 1, and the distal end of the anchoring point 21 is located at the expected anchoring position (i.e., the autologous valve ring); wherein the flexible kit 4 is provided with a plurality of connection sites 41, and a connecting ring 42 is provided on the connection site 41, as shown in Figure 14, the guiding mechanism 5 includes a plurality of guide wires 51, and the distal end of the guide wire 51 is provided with a collar 52 structure, and the distal end of the anchoring point 21 is provided with a positioning hole 211, as shown in Figure 14. Figure 4As shown, during pre-installation, the distal end of the guide wire 51 passes through the connecting ring 42 and the positioning hole 211 in sequence, and the detachable wire 6 passes through the ring 52 in sequence to form a detachable connection; wherein the distal end portion of the anchoring mechanism 3 is sleeved in the flexible sleeve 4, and, during the first anchoring, the anchoring mechanism 3 is pushed distally along the interior of the flexible sleeve 4, so that the distalmost connection site 41 on the flexible sleeve 4 can slide along the guide wire 51 and reach the corresponding connected anchor point 21. At this time, the anchoring mechanism 3 can be operated to anchor the anchor needle 34 at the anchor point 21, as shown in FIG. Figure 10 As shown, during the second anchoring, the anchoring mechanism 3 is withdrawn and pushed toward the distal end again. At this time, the anchoring mechanism 3 pushes the second connection site 41 on the flexible sleeve 4 to slide along the corresponding guide wire 51 to the corresponding anchoring point 21, as shown in FIG. Figure 11 As shown, repeating the above operation can guide the anchoring mechanism 3 to each anchoring point 21 according to the predetermined route and complete the anchoring, as shown in FIG. Figure 12 and 13 As shown, there is no need to repeatedly search for the position through images, and the operation is convenient and accurate.

[0039] In this embodiment, the flexible sleeve 4 is a hollow tubular flexible member, and the flexible sleeve 4 is made of implantable fabric material.

[0040] In this embodiment, after the anchoring mechanism 3 completes anchoring at all positions in sequence, the connection between the flexible kit 4 and the anchoring point 21 can be separated by pulling out the detachable wire 6 to separate it from each ring 52. The operation is convenient and reliable, and the intraoperative time can be significantly shortened.

[0041] In this embodiment, when pre-installed, the flexible sleeve 4 is loaded into the delivery catheter 1 in a linear state or a vertical state. Figure 2 As shown; and, when anchoring, the anchoring mechanism 3 is pushed so that the flexible sleeve 4 is anchored in sequence; specifically, when anchoring for the first time, the anchoring mechanism 3 moves distally along the interior of the flexible sleeve 4 and pushes the distalmost connection site 41 on the flexible sleeve 4 to slide along the corresponding guide wire 51 to the anchoring point 21, completing the first anchoring position guidance, as shown Figure 10 As shown, during the second anchoring, the anchoring mechanism 3 is withdrawn and pushed distally again, so that the anchoring mechanism 3 can push the second connection site 41 on the flexible sleeve 4 and slide it along the corresponding guide wire 51 to the anchoring point 21, as shown in FIG. Figure 11 As shown, the second anchoring position guidance is completed, and the above operations can be repeated to enable the flexible sleeve 4 to be anchored at the autologous valve ring in sequence according to the predetermined route.

[0042] In this embodiment, a limiting ring 43 is provided in the flexible sleeve 4, and the limiting ring 43 is elastic. In addition, the limiting ring 43 is set at the connection point 41, as shown in 14; it can effectively prevent the anchoring mechanism 3 from moving excessively when pushed, and can ensure the accuracy of its anchoring position.

[0043] In this embodiment, an anti-interference rod 22 is provided between the anchoring points 21 corresponding to the first and last connection points 41, wherein the distal end of the detachable wire 6 first passes through the anti-interference rod 22 and then passes through the ring 52 in sequence. Figure 9 As shown; the anti-disturbance rod 22 can prevent the detachable wire 6 from interfering inside the sheath, and effectively avoid entanglement or jamming when the detachable wire 6 is withdrawn.

[0044] In this embodiment, the anchoring mechanism 3 includes an anchoring tube 31, an inner core rod 32 arranged inside the anchoring tube 31, an elastic member 33 and a plurality of anchoring needles 34 (the anchoring needles 34 are spiral needles). The distal end of the anchoring tube 31 is provided with an internal thread 311. Figure 6 As shown, the outer periphery of the anchoring needle 34 is provided with an outer thread 321 that matches the inner thread 311. Figure 7 As shown, the elastic member 33 and the multiple anchoring needles 34 are sleeved on the inner core rod 32, and rotating the inner core rod 32 can drive the anchoring needles 34 to rotate. When pre-installed, the multiple anchoring needles 34 are sequentially arranged at the distal end of the elastic member, and the elastic member is in a pre-tightened state, so that when the distalmost anchoring needle 34 is output, the adjacent anchoring needles 34 are automatically pushed to the distal end of the anchoring tube 31 by the elastic member.

[0045] In this embodiment, the anchoring needle 34 is provided with a through hole 341. Figure 8 As shown, the distal end of the inner core rod 32 is provided with a rotating sleeve 35 that cooperates with the through hole 341, as shown in FIG. Figure 6 As shown, when the inner core rod 32 is rotated, the rotating sleeve 35 can drive the anchoring needle 34 to rotate.

[0046] In this embodiment, the inner core rod 32 is a circular rod, and the rotating sleeve 35 is located at the internal thread 311 of the outer tube, wherein rotating the inner core rod 32 can drive the farthest anchoring needle 34 to rotate, while the remaining anchoring needles 34 remain stationary.

[0047] In this embodiment, a bending adjustment structure is provided at the distal end of the anchoring tube 31, so that the anchoring tube 31 can conform to the guidance of various angles during the needle guiding. Example

[0048] The second embodiment is substantially the same as the first embodiment, except that the anchoring system in this embodiment is used in a mitral valve replacement treatment method.

[0049] In this embodiment, the implant is a mitral valve prosthesis 7, and the mitral valve prosthesis 7 is provided with a sealing ring 8 for preventing leakage in the atrial part. When the mitral valve prosthesis 7 is implanted in the heart, the sealing ring 8 is anchored by the anchoring system, so that the mitral valve prosthesis 7 can be firmly anchored in the heart, as shown in 14.

[0050] The foregoing description of several embodiments of the present application has been presented for illustrative purposes. It is not intended to be exhaustive or to limit the present application to the precise configurations, configurations, and / or steps disclosed, and it is apparent that many modifications and variations are possible in light of the above teachings. It is intended that the scope of the invention and all equivalents thereof be defined by the appended claims.

Claims

1. A guideable anchoring system comprising a delivery catheter, a positioning stent disposed within the delivery catheter, an anchoring mechanism, a flexible sleeve, and a guiding mechanism, wherein the positioning stent is disposed at the distal end of the delivery catheter and has a plurality of circumferentially distributed anchoring points, characterized in that: The flexible sleeve is provided with a plurality of connection sites, and the guiding mechanism includes a plurality of guide wires, which pass through the connection sites and cooperate with the positioning bracket respectively. The anchoring mechanism pushes the flexible sleeve so that the flexible sleeve cooperates with the guide wires and guides the anchoring mechanism to arrive at each anchoring point along a predetermined route and completes anchoring. The distal end of the anchoring mechanism is sleeved in the flexible sleeve. When anchoring for the first time, the anchoring mechanism arrives at the anchoring point corresponding to the first connection site along the flexible sleeve. When anchoring again, the anchoring mechanism is withdrawn and pushed again so that the distal end of the anchoring mechanism drives the second connection site to slide along the guide wire until the second connection site is reached. The distal end of the anchoring mechanism reaches the anchoring point corresponding to the second connection site; and the anchoring mechanism includes an anchoring tube, an inner core rod arranged inside the anchoring tube, an elastic member and a plurality of anchoring needles, the distal end of the anchoring tube is provided with an internal thread, the outer periphery of the anchoring needle is provided with an external thread matching the internal thread, the elastic member and the plurality of anchoring needles are sleeved on the inner core rod, and rotating the inner core rod can drive the anchoring needle to rotate. When pre-installed, the plurality of anchoring needles are sequentially arranged at the distal end of the elastic member, and the elastic member is in a pre-tightened state, so that when the farthest end anchoring needle is output, the adjacent anchoring needle is automatically pushed to the farthest end of the anchoring tube by the elastic member.

2. The anchoring system capable of guiding positioning according to claim 1, characterized in that: The connection site is provided with an adapter ring, and the guide wire passes through the adapter ring and is connected to the anchor point.

3. The anchoring system capable of guiding positioning according to claim 2, characterized in that: The anchoring system also includes a detachable wire, wherein the distal end of the guide wire is provided with a loop, and the distal end of the anchoring point is provided with a positioning hole. During pre-installation, the distal end of the guide wire passes through the connecting ring and the positioning hole in sequence, and the detachable wire passes through the loop in sequence to form a detachable connection.

4. The anchoring system capable of guiding positioning according to claim 3, characterized in that: When the detachable wire is pulled out of the ring, the guide wire, the flexible sleeve and the anchor point are separated.

5. The anchoring system capable of guiding positioning according to claim 1, characterized in that: During pre-installation, the flexible sleeve is loaded into the delivery catheter in a linear state or a vertical state; and during anchoring, the anchoring mechanism is pushed so that the flexible sleeve is anchored in sequence.

6. The anchoring system capable of guiding positioning according to claim 1, characterized in that: A limiting ring is provided in the flexible sleeve, the limiting ring is elastic, and the limiting ring is arranged at the connection point.

7. The anchoring system capable of guiding positioning according to claim 1, characterized in that: The positioning stent has a predetermined shape, wherein, when pre-installed, the positioning stent is compressed within the delivery catheter; when the distal end of the delivery catheter reaches the target position, the positioning stent is released from the delivery catheter, and the distal end of the anchoring point is located at the expected anchoring position.

8. The anchoring system capable of guiding positioning according to claim 3, characterized in that: An anti-disturbance rod is provided between the anchoring points corresponding to the first and last connection sites, wherein the distal end of the detachable wire first passes through the anti-disturbance rod and then passes through the ring in sequence.

9. The anchoring system capable of guiding positioning according to claim 1, characterized in that: The anchoring needle is provided with a through hole, and the distal end of the inner core rod is provided with a rotating sleeve that cooperates with the through hole. When the inner core rod is rotated, the rotating sleeve can drive the anchoring needle to rotate.

10. The anchoring system capable of guiding positioning according to claim 9, characterized in that: The inner core rod is a round rod, and the rotating sleeve is located at the internal thread of the anchoring tube, wherein rotating the inner core rod can drive the farthest anchoring needle to rotate, while the other anchoring needles remain stationary.

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