Anchoring device

Abstract

The anchor device of the present application relates to the medical technology field, the anchor device includes the line seat that is provided with the wire passing hole for the suture wire to pass, the elastic piece arranged on the line seat, and the compression piece that is sleeved on the elastic piece and is placed in the wire passing hole; the elastic piece is in the elastic reset or stress deformation, the compression piece is closed or opened the wire passing hole by the driving of the elastic piece, to release the suture wire or make the suture wire be clamped between the compression piece and the hole wall of wire passing hole; by the stress deformation or elastic reset of elastic piece driving compression piece moves towards the predetermined direction, thereby fixing or releasing the suture wire, not only improve the operation convenience of medical staff to adjust the fixed position of suture wire, and make medical staff can adjust the fixed position of suture wire according to the postoperative rehabilitation of the patient, secondly, with the help of elastic force of elastic piece, the suture wire can also be ensured to be in the predetermined clamping state, guarantee the clamping degree of suture wire.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to an anchoring device. Background Technology

[0002] Mitral regurgitation is one of the most common valvular heart diseases today. The main causes include rheumatic heart disease, mitral myxoid degeneration, ischemic heart disease, and cardiomyopathy, leading to lesions in the mitral valve structure, including the annulus, leaflets, chordae tendineae, and papillary muscles, resulting in the inability of the mitral valve leaflets to close completely. Traditional surgery is one of the effective treatments for mitral regurgitation; however, it is highly invasive, and in elderly patients and those with multiple comorbidities, it carries a higher risk of complications and mortality.

[0003] Therefore, minimally invasive interventional treatment for mitral regurgitation is currently the primary approach, offering advantages such as minimal trauma and fewer complications, making it a better choice for most heart conditions. During interventional procedures, sutures often need to be knotted and secured. Various anchoring devices have been developed for this purpose; however, existing types of anchoring devices still present certain technical challenges in their use.

[0004] For anchoring devices that achieve their function by compressing and deforming a pin to clamp the suture, the inelastic pin makes it impossible for medical staff to readjust the clamping position of the suture after deformation. This requires the surgeon to accurately position the clamping position based on the actual situation during the operation and their experience. However, as the patient's mitral regurgitation gradually improves after surgery, the enlarged heart also returns to normal. At this time, the implanted suture will also become loose due to the heart's recovery, and the suture will no longer fit the improved heart. This makes mitral regurgitation very likely to recur. At this time, the anchoring device cannot be adaptively adjusted again due to the deformation of the inelastic pin. This type of anchoring device has poor clinical efficacy and a high recurrence rate after surgery.

[0005] For anchoring devices that use threads to lock the chord cord block and thus fix the suture, the contraction and diastole of the heart often cause the threads to loosen, resulting in the anchoring device losing its chordae tendineae fixation function, low suture clamping tightness, and poor postoperative results; in addition, the threaded locking structure also brings the problem of cumbersome operation. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide an anchoring device that can flexibly adjust the position of the suture fixation according to the postoperative recovery situation, has high clamping tightness of the tendon chordae tendineae and is easy to operate.

[0007] The technical solution adopted by this invention to solve its technical problem is:

[0008] The present invention provides an anchoring device, which includes a suture seat with a suture hole for a suture to pass through, an elastic member disposed on the suture seat, and a clamping member sleeved on the elastic member and placed in the suture hole;

[0009] When the elastic element is elastically reset or deformed under force, the clamping element is driven by the elastic element to close or open the thread hole, so as to release the suture or make the suture clamped between the clamping element and the hole wall of the thread hole.

[0010] In some embodiments, the anchoring device further includes a guide mechanism disposed on the suture base, the guide mechanism being used to guide the clamping member to move toward the suture line.

[0011] In some embodiments, the guiding mechanism includes a self-locking surface disposed on the wall of the wire hole, and the clamping member can slide along the self-locking surface to a first position under the action of the elastic member;

[0012] When the suture slides in the suture hole in the first direction, it can drive the clamping member located in the first position to move closer to the suture, thereby increasing the force applied by the clamping member to the suture.

[0013] In some embodiments, the cable holder includes a bracket with a second cable hole and a cable box with a first cable hole and a clearance hole that communicate with each other and is disposed on the bracket;

[0014] The first wire hole and the second wire hole are connected to form the through hole. The elastic element is disposed on the bracket and passes through the clearance hole. The elastic element is exposed in the first wire hole. The self-locking surface is located on the hole wall of the first wire hole.

[0015] In some embodiments, the bracket and the junction box are connected by an alignment structure, the alignment structure including an alignment hole and an alignment portion;

[0016] The alignment part is disposed on the bracket, and the alignment hole is disposed on the wire box, or the alignment hole is disposed on the bracket, and the alignment part is disposed on the wire box;

[0017] When the junction box is installed on the bracket, the alignment part is inserted into the alignment hole.

[0018] In some embodiments, the anchoring device further includes an operating mechanism, the operating mechanism including a sleeve, a clamping member disposed on the sleeve and detachably connected to the elastic member, and a top rod passing through the sleeve and the clamping member;

[0019] The push rod can slide along the inner wall of the sleeve, thereby supporting the suture seat to rotate around the clamping member, so that the elastic member is pulled and deformed by the clamping member, thereby causing the elastic member to drive the pressing member to move away from the suture line.

[0020] In some embodiments, the clamping member includes a clamping seat disposed on the sleeve and a U-shaped hook disposed on the clamping seat; the clamping seat has a through hole, the push rod passes through the through hole, and the U-shaped hook has a limiting hole with an opening for limiting the elastic member.

[0021] In some embodiments, the operating mechanism further includes a threaded seat disposed on the sleeve and an adjusting knob screwed to the threaded seat and connected to the push rod; when the adjusting knob rotates along the thread on the threaded seat, the push rod is driven by the adjusting knob to slide inside the sleeve.

[0022] In some embodiments, the wire seat has a transmission hole adapted to the push rod, and the push rod is used to insert into the transmission hole, so that the end of the push rod abuts against the transmission hole.

[0023] In some embodiments, the elastic element is made of a nickel-titanium alloy.

[0024] The anchoring device of the present invention has at least the following beneficial effects:

[0025] The anchoring device of the present invention uses the force deformation or elastic reset of the elastic element to drive the clamping element to move in a predetermined direction, thereby fixing or releasing the suture. This not only improves the convenience of medical staff in adjusting the suture fixing position, but also allows medical staff to readjust the suture fixing position according to the patient's postoperative recovery. Furthermore, the elastic force of the elastic element can ensure that the suture is always in a predetermined clamping state, thus guaranteeing the clamping tightness of the suture. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0027] Figure 1 This is a diagram showing the usage state of the anchoring device in a preferred embodiment of the present invention;

[0028] Figure 2 This is a partial structural schematic diagram of the anchoring device in a preferred embodiment of the present invention;

[0029] Figure 3 yes Figure 2 Exploded view of the anchoring device shown;

[0030] Figure 4 yes Figure 2A schematic diagram of the junction box in the anchoring device shown;

[0031] Figure 5 yes Figure 2 A cross-sectional view of the junction box in the anchoring device shown.

[0032] Figure 6 yes Figure 2 A schematic diagram of the connection relationship between the support and the alignment structure in the anchoring device shown;

[0033] Figure 7 yes Figure 1 A cross-sectional view of the relationship between the clamping element and the stitching line in the anchoring device shown when the clamping element is in the first position;

[0034] Figure 8 yes Figure 1 A cross-sectional view showing the relationship between the clamping element and the stitching line in the anchoring device when the clamping element is in another position.

[0035] Figure 9 yes Figure 1 Exploded view of the anchoring device shown;

[0036] Figure 10 yes Figure 9 A schematic diagram of the clamping component in the anchoring device shown;

[0037] Figure 11 This is a diagram showing the usage state of the anchoring device in this invention from another perspective;

[0038] Figure 12 This is a schematic diagram of the anchoring device of the present invention when the elastic member and the clamping member are in one of the mating positions;

[0039] Figure 13 This is a diagram showing the usage state of the anchoring device in another preferred embodiment of the present invention;

[0040] Figure 14 yes Figure 13 Exploded view of the anchoring device shown;

[0041] Figure 15 This is a structural schematic diagram of the anchoring device of the present invention applied in an application scenario;

[0042] Figure 16 This is a structural schematic diagram of the anchoring device of the present invention applied in another application scenario;

[0043] Figure 17 This is a schematic diagram of the anchoring device of the present invention applied in other application scenarios. Detailed Implementation

[0044] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0045] Figure 1 An anchoring device 10 is shown in some embodiments of the present invention. This anchoring device 10 is used to secure sutures 20 or other sutures requiring fixation, such as artificial tendons. Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the anchoring device 10 includes a suture base 1, an elastic element 2, and a clamping element 3. The suture base 1 has a thread hole 121 for the suture 20 to pass through, allowing the suture base 1 to slide along the suture to a predetermined position requiring fixation. The suture base 1 is used to fix the elastic element 2. The elastic element 2 is disposed on the suture base 1 and is used to drive the clamping element 3 to move relative to the suture base 1 in a predetermined direction. The clamping element 3 is used to press or release the suture 20 under the drive of the elastic element 2, so as to clamp the position on the suture 20 requiring fixation within the suture base 1, or to allow the suture base 1 to slide along the suture 20. When the elastic element 2 elastically returns to its original position or deforms under force, the clamping element 3, driven by the elastic element 2, closes or opens the thread hole 121 to release the suture or to clamp the suture 20 between the clamping element 3 and the wall of the thread hole 121.

[0046] Understandably, during surgery, one end of the suture 20 is fixed to a predetermined location within the body, and the other end passes through the suture hole 121. The suture holder 1 is slid to the desired position on the suture 20, and the elastic element 2 is released. During its elastic recovery deformation, the elastic element 2 drives the clamping element 3 to move towards closing the suture hole 121, thereby pressing the suture against the wall of the suture hole 121. This fixes the relative position of the suture holder 1 and the suture 20, placing the suture holder 1 in the predetermined clamping position, thus completing the overall fixation of the suture 20. When it is necessary to adjust the fixed length of the suture 20, i.e., adjust the relative position of the suture holder 1 and the suture 20, it is only necessary to re-drive the elastic element 2 to deform, causing the clamping element 3 to move away to open the suture hole 121, allowing the suture holder 1 to slide along the suture 20. This allows medical personnel to adjust the fixed length of the suture 20 according to the patient's actual condition during or after surgery.

[0047] It is also understandable that the elastic element 2 can be configured to drive the clamping element 3 to open the suture hole 121 during the elastic reset process, so as to adjust the relative position of the suture 20 and the suture holder 1. The specific adjustment is based on the actual application requirements. The number of clamping elements 3 can be set to one or multiple, as long as they can clamp and release the suture when needed; secondly, the elastic element 2 can indirectly drive the clamping element 3 to move through direct support or other intermediate elements.

[0048] Specifically, in some embodiments, the elastic element 2 may be made of an elastic material, preferably a nickel-titanium alloy.

[0049] Understandably, nickel-titanium alloys possess excellent elasticity, ensuring that the force applied by the elastic element 2 to the clamping element 3 prevents the suture 20 from loosening and further improves the clamping tightness of the suture. Secondly, nickel-titanium alloys also have excellent corrosion resistance, improving the product's durability. Furthermore, nickel-titanium alloys exhibit excellent biocompatibility.

[0050] like Figure 7 and Figure 8 As shown, in some embodiments, the anchoring device 10 also includes a guide mechanism 5, which is disposed on the thread holder 1 and is used to guide the clamping member 3 to move toward the direction of the suture line.

[0051] Understandably, in order to ensure that the elastic element 2 can drive the clamping element 3 to move in a predetermined direction when it is subjected to force deformation or elastic recovery, a guide mechanism 5 is provided on the line seat 1 to limit the range and direction of movement of the clamping element 3.

[0052] It can also be understood that, firstly, the guide mechanism 5 can be configured to limit the range of motion of the elastic element 2, thereby limiting the range of motion of the clamping element 3, and guiding the clamping element 3 to move along a predetermined trajectory toward the closed or open thread hole 121 to clamp or release the suture 20; for example, the range of motion of the elastic element 2 can be limited by a waist hole or ring body adapted to the elastic element 2. Secondly, the guide mechanism 5 can also be configured to not limit the range of motion of the elastic element 2, but directly limit the range of motion of the clamping element 3; the range of motion of the clamping element 3 can be limited by a structure with a guiding function such as an inclined surface, curved surface, protrusion or channel. Thirdly, the guide mechanism 5 can also be configured to limit the range of motion of both the elastic element 2 and the clamping element 3.

[0053] like Figure 7 and Figure 8 As shown, in some embodiments, the guide mechanism 5 includes a self-locking surface 122, which is disposed on the wall of the thread hole 121. The clamping member 3 can slide along the self-locking surface 122 to the first position 1221 under the drive of the elastic member 2. When the suture 20 slides in the thread hole 121 in the first direction Z1, it can drive the clamping member 3 located at the first position 1221 to move closer to the suture, so as to increase the force applied by the clamping member 3 to the suture.

[0054] Understandably, the first direction Z1 is the direction towards the heart. The clamping member 3 can slide to the first position 1221 within the closed suture hole 121 of the elastic member 2, thereby clamping the suture 20 between the clamping member 3 and the wall of the suture hole 121. Subsequently, during the contraction and relaxation of the heart, the suture 20 will move along the first direction Z1, thereby causing the clamping member 3 to move along the self-locking surface 122. Figure 7 The rolling motion in the Z2 direction, as shown, causes the clamping element 3 to move along... Figure 7 The movement in the Z3 direction, further moving closer to the suture 20, increases the force applied to the suture 20 by the clamping member 3, causing the suture 20 to be more tightly held against the wall of the suture hole 121. This prevents the suture from shifting relative to the suture holder 1 due to heartbeats, avoids slackness of the suture 20, and further improves the clamping tightness of the suture 20.

[0055] It can also be understood that the first position 1221 is the position on the self-locking surface 122 adjacent to the suture 20, and the clamping member 3 located at this first position 1221 can fix the suture. The self-locking surface 122 can not only be set as Figure 7 and Figure 8 The inclined surface shown can also be set as a curved surface or other structure, as long as the suture 20 can move in the Z1 direction and drive the clamping member 3 located at the first position 1221 to further tighten the suture 20, forming a self-locking structure; to prevent the patient's condition from recurring due to the loosening of the suture 20.

[0056] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, the suture holder 1 may include a bracket 11 and a suture box 12. The bracket 11 is used to fix the suture box 12 and the elastic member 2, and a second suture hole 121b is provided on the bracket 11. The suture box 12 is disposed on the bracket 11, and a first suture hole 121a and a clearance hole 123 are provided on the suture box 12, and the first suture hole 121a and the clearance hole 123 are connected. The first suture hole 121a and the second suture hole 121b together provide space for the suture 20 to pass through, so that the suture 20 can pass through the bracket 11 and the suture box 12. The clearance hole 123 provides room for the elastic member 2 to move, and also avoids wear between the elastic member 2 and the suture box 12, thereby improving durability. The elastic member 2 is exposed in the first suture hole 121a, the self-locking surface 122 is located on the hole wall of the first suture hole 121a, and the clamping member 3 is sleeved on the elastic member 2 and located on the self-locking surface 122 in the first suture hole 121a.

[0057] Understandably, after the suture box 12 is assembled onto the bracket 11 in a predetermined manner, the first suture hole 121a and the second suture hole 121b will be interconnected to form a suture hole 121. Secondly, other intermediate components can also be provided between the suture box 12 and the bracket 11. These intermediate components also need to have through holes that correspond to and are connected to the first suture hole 121a and the second suture hole 121b, so that the suture thread 20 can pass through.

[0058] like Figure 2 , Figure 3 and Figure 6 As shown, in some embodiments, the wire connector 1 also includes an alignment structure 13, which connects the bracket 11 and the wire box 12. The alignment structure 13 serves to connect and align the wires.

[0059] Understandably, the alignment structure 13 can accurately align and install the bracket 11 and the wire box 12, so that the first wire hole 121a on the wire box 12 and the second wire hole 121b on the bracket 11 can be accurately aligned to form the wire hole 121. This avoids misalignment between the first wire hole 121a and the second wire hole 121b, which would prevent the suture 20 from passing through smoothly. It also ensures that the wall of the first wire hole 121a and the wall of the second wire hole 121b can smoothly transition in a predetermined manner, avoiding excessive wear on the suture 20 and improving durability.

[0060] like Figure 2 , Figure 3 and Figure 6 As shown, in some embodiments, the alignment structure 13 may include an alignment hole 131 and an alignment portion 132, which are adapted to each other. When the wire box 12 is installed on the bracket 11, the alignment portion 132 is inserted into the alignment hole 131.

[0061] Understandably, the positions of the alignment hole 131 and the alignment part 132 can be flexibly adjusted. The implementation methods for their positions may include: first, placing the alignment part 132 on the bracket 11 and the alignment hole 131 on the wire box 12; second, placing the alignment hole 131 on the bracket 11 and the alignment part 132 on the wire box 12. When assembling the wire box 12 and the bracket 11, the alignment part 132 and the alignment hole 131 can assist in alignment, improving processing and assembly efficiency while ensuring product yield.

[0062] It is also understandable that, in addition to being aligned and installed using the alignment holes 131 and alignment parts 132, the wire box 12 and the bracket 11 can also be aligned using existing technologies such as anti-fooling notches or eccentric alignment structures; secondly, the wire box 12 and the bracket 11 can also be manufactured in one piece.

[0063] like Figure 2 , Figure 3 and Figure 6 As shown, in some embodiments, the alignment structure 13 may also include a pin 133. The junction box 12 has a countersunk hole 124, and the bracket 11 has a pin hole 134. The pin 133 passes through the countersunk hole 124 and is fixed to the pin hole 134 on the bracket 11. It can be understood that after the pin 133 passes through the countersunk hole 124 and is inserted into the pin hole 134, it is fixedly connected to the bracket 11. This fixed connection can be achieved by welding, screwing, or bonding.

[0064] like Figure 1 As shown, in some embodiments, the anchoring device 10 may also include an operating mechanism 4, which is used to change the relative position between the elastic element 2 and the suture seat 1 to fix or release the suture 20. It can drive the elastic element 2 to deform or release the elastic element 2 to elastically reset in order to fix or release the suture 20.

[0065] like Figure 2 , Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, the operating mechanism 4 includes a sleeve 41, a clamping member 42, and a push rod 43. The sleeve 41 serves to fix the clamping member 42 and guide the push rod 43 to slide. The clamping member 42 is mounted on the sleeve 41 and is detachably connected to the elastic member 2. The push rod 43 passes through the sleeve 41 and the clamping member 42 and is used to support the suture seat 1. The push rod 43 can slide along the inner wall of the sleeve 41, thereby supporting the suture seat 1 to rotate around the clamping member 42, causing the elastic member 2 to deform under the pull of the clamping member 42, which in turn causes the elastic member 2 to drive the clamping member 3 to move away from the suture line.

[0066] Understandably, during use, the push rod 43 is pushed along the inner wall of the sleeve 41. The push rod 43 passes through the sleeve 41 and through the clamping member 42. The push rod 43 passing through the clamping member 42 abuts against the suture seat 1. The suture seat 1 rotates around the clamping member 42 as the push rod 43 moves further. At this time, since part of the elastic member 2 is always fixed on the clamping member 42, the part of the elastic member 2 fixed by the clamping member 42 will have relative displacement with the suture seat 1. This causes the pressing member 3 on the elastic member 2 to move away from the suture 20, and thus no longer holds the suture 20 against the wall of the suture hole 121, completing the release of the suture 20. Similarly, after sliding along the suture to the predetermined position, the push rod 43 is pulled out along the inner wall of the sleeve 41. The elastic member 2 will return to the initial position by its own elastic restoring force, so that the clamping member 42 holds the suture 20 against the wall of the suture hole 121 again, completing the fixation of the suture 20. In summary, medical staff can readjust the fixed positions of the suture seat 1 and the suture 20 according to the actual situation of the patient during and after the operation, realizing repeated adjustment of the suture fixing position and improving the convenience of operation.

[0067] like Figure 10 , Figure 11 and Figure 12 As shown, in some embodiments, the clamping member 42 may include a clamping seat 421 and a U-shaped hook 422. The clamping seat 421 is disposed on the sleeve 41, and the clamping seat 421 serves to support the U-shaped hook 422. The clamping seat 421 has a through hole 423 for the push rod 43 to pass through, and the through hole 423 provides room for the push rod 43 to move so that the push rod 43 can pass through the clamping seat 421 and be held against the wire seat 1. The U-shaped hook 422 is disposed on the clamping seat 421, and the U-shaped hook 422 is detachably connected to the elastic member 2. The U-shaped hook 422 has a limiting hole 424, which is used to receive and limit the elastic member 2.

[0068] Understandably, during use, the push rod 43 slides along the sleeve 41 and passes through the through hole 423 before being held against the suture base 1. The suture base 1 rotates around the U-shaped hook 422. During the rotation, the part of the elastic element 2 that is limited by the limiting hole 424 will not rotate synchronously with the suture base 1, thereby causing the clamping member 3 set on the elastic element 2 to move away from the suture, so as to release the suture 20 and readjust the fixed position of the suture. Similarly, when the push rod 43 is pulled out, the elastic element 2 drives the suture base 1 and the clamping member 3 back to the initial position through self-resetting, and fixes the suture 20 again.

[0069] like Figure 9As shown, in some embodiments, the operating mechanism 4 may further include a threaded seat 44 and an adjusting knob 45. The threaded seat 44 is disposed on the sleeve 41, and the threaded seat 44 is fixedly connected to the sleeve 41, and their relative positions remain fixed. The adjusting knob 45 is screwed to the threaded seat 44 and connected to the push rod 43. When the adjusting knob 45 rotates along the thread on the threaded seat 44, it will drive the push rod 43 to slide inside the sleeve 41.

[0070] Understandably, rotating the adjustment knob 45 will cause the push rod 43 to slide within the sleeve 41, thus fixing or releasing the suture. In this way, the thread specifications on the threaded seat 44 and the adjustment knob 45 can be adjusted according to actual application needs. For example, when the surgical site requires high stability, the thread pitch can be reduced, thereby converting a larger amount of thread rotation into a smaller amount of push rod 43 displacement. This allows for fine-tuning of the rotation of the suture seat 1, preventing excessive rotation of the suture seat 1 from causing inconvenience to the surgical procedure.

[0071] It is also understandable that the adjusting knob 45 and the push rod 43 can be rotatably connected by a bearing or other structure, so that when the adjusting knob 45 rotates, it only drives the push rod 43 to slide along the inner wall of the sleeve 41, without causing the push rod 43 to rotate. This prevents the torque generated when the push rod 43 rotates from being transmitted to the thread holder 1, causing the thread holder 1 to rotate to a certain extent. This avoids misalignment of the thread holder 1 due to rotation in the same direction as the push rod 43, and prevents accidental disengagement between the clamping member 42 and the elastic member 2, reducing surgical risks and improving the success rate of the surgery. Preferably, in order to further prevent the push rod 43 from rotating in the same direction under the drive of the adjusting knob 45, a corresponding alignment and mating structure, such as a slider and a guide rail, can be provided between the push rod 43 and the inner wall of the sleeve 41 to ensure that the torque of the adjusting knob 45 is not transmitted to the thread holder 1 through the push rod 43.

[0072] like Figure 3 , Figure 7 and Figure 8 As shown, in some embodiments, the push rod 43 can be directly pressed against the surface of the suture base 1, thereby pressing the suture base 1 to rotate, so as to fix or release the suture.

[0073] In other embodiments, a transmission hole 125 can be formed on the suture base 1. This transmission hole 125 is adapted to the push rod 43. In use, the push rod 43 is inserted into the transmission hole 125, so that the end of the push rod 43 abuts against the transmission hole 125. It is understood that during actual surgery, a certain amount of liquid will inevitably adhere to the surface of the suture base 1. Therefore, by using the transmission hole 125 to support the rotation of the suture base 1, the push rod 43 can minimize slippage on the surface of the suture base 1, thus ensuring the success rate of the surgery.

[0074] Figure 13 and Figure 14 An anchoring device 10b according to other embodiments of the present invention is shown. The anchoring device 10b includes a suture holder 1b, a clamping member 2b, an elastic member 3b, and an operating mechanism 4b. The suture holder 1b has a guide groove 11b for guiding the clamping member 2b to slide along a predetermined trajectory. A thread hole for the suture 20 to pass through is provided in the guide groove 11b, allowing the suture holder 1b to slide along the suture 20 to a predetermined position, thereby adjusting the fixed length of the suture 20. The clamping member 2b is slidably disposed within the guide groove 11b. The elastic member 3b is drivenly connected to the clamping member 2b, and the operating mechanism 4b is drivenly connected to the clamping member 2b. In use, the clamping member 2b moves within the guide groove 11b towards closing or opening the thread hole under the drive of the elastic member 3b and the operating mechanism 4b, thereby clamping or releasing the suture 20.

[0075] Understandably, the positions of the elastic element 3b and the operating mechanism 4b can be flexibly adjusted. Specifically, the direction in which the elastic element 3b drives the clamping element 2b to move is opposite to the direction in which the operating mechanism 4b drives the clamping element 2b to move. For example: First, if the clamping element 2b moves towards closing the suture hole under the drive of the elastic element 3b, then the clamping element 2b will move towards opening the suture hole under the drive of the operating mechanism 4b; Second, if the clamping element 2b moves towards opening the suture hole under the drive of the elastic element 3b, then the clamping element 2b will move towards closing the suture hole under the drive of the operating mechanism 4b. In this way, medical personnel can control the movement direction of the clamping element 2b solely through the operating mechanism 4b to achieve the purpose of fixing or releasing the suture 20.

[0076] It is also understandable that the wire hole can be set on the wall or bottom of the guide groove 11b, which can be flexibly adjusted according to different surgical types or surgical locations. The elastic element 3b can be set as a convex spring structure and set in the guide groove 11b. The convex spring is used to provide elastic force to the clamping element 2b. Secondly, setting the elastic element 3b in the guide groove 11b can also play a certain protective role for the elastic element 3b and improve its durability to a certain extent.

[0077] like Figure 13 and Figure 14 As shown, in some embodiments, the operating mechanism 4b may include a cannula 41b and a push rod 43b. The cannula 41b is disposed on the suture holder 1b, and the push rod 43b passes through the cannula 41b and is drivenly connected to the clamping member 2b. Understandably, medical personnel can control the movement of the clamping member 2b by pushing or pulling the push rod 43b within the cannula 41b to fix or release the suture when needed.

[0078] like Figure 15 , Figure 16 and Figure 17As shown, the anchoring device 10 can be applied to various surgeries that require suture fixation; for example, fixing sutures in surgeries involving the fixation of the artificial valve annulus 30, and fixing sutures in surgeries involving mitral regurgitation. Furthermore, a single anchoring device 10 can fix one or more sets of sutures.

[0079] The anchoring device of the present invention has at least the following beneficial effects:

[0080] The anchoring device of the present invention uses the force deformation or elastic reset of the elastic element to drive the clamping element to move in a predetermined direction, thereby fixing or releasing the suture. This not only improves the convenience of medical staff in adjusting the suture fixing position, but also allows medical staff to readjust the suture fixing position according to the patient's postoperative recovery. Furthermore, the elastic force of the elastic element can ensure that the suture is always in a predetermined clamping state, thus guaranteeing the clamping tightness of the suture.

[0081] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They do not limit the scope of protection of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. An anchoring device, characterized in that, It includes a suture holder (1) with a thread hole (121) for the suture (20) to pass through, an elastic member (2) disposed on the suture holder (1), and a clamping member (3) sleeved on the elastic member (2) and placed in the thread hole (121). When the elastic element (2) is elastically reset or deformed under force, the clamping element (3) is driven by the elastic element (2) to open or close the thread hole (121) to release the suture or to clamp the suture between the clamping element (3) and the hole wall of the thread hole (121). The anchoring device further includes a guide mechanism (5) disposed on the suture base (1), the guide mechanism (5) being used to guide the clamping member (3) to move toward the suture line; The guiding mechanism (5) includes a self-locking surface (122) disposed on the wall of the wire hole (121), and the clamping member (3) can slide along the self-locking surface (122) to the first position (1221) under the drive of the elastic member (2). When the suture slides in the first direction within the thread hole (121), it can drive the clamping member (3) located at the first position to move closer to the suture, thereby increasing the force applied by the clamping member (3) to the suture.

2. The anchoring device according to claim 1, characterized in that, The wire holder (1) includes a bracket (11) with a second wire hole (121b) and a wire box (12) with a first wire hole (121a) and a clearance hole (123) that are interconnected and are disposed on the bracket. The first wire hole (121a) and the second wire hole (121b) are connected to form the through hole (121). The elastic element (2) is disposed on the bracket (11) and passes through the clearance hole (123). The elastic element (2) is exposed in the first wire hole (121a). The self-locking surface (122) is located on the hole wall of the first wire hole (121a).

3. The anchoring device according to claim 2, characterized in that, The bracket (11) and the wire box (12) are connected by an alignment structure (13), which includes an alignment hole (131) and an alignment part (132). The alignment part (132) is disposed on the bracket (11), and the alignment hole (131) is disposed on the wire box (12), or the alignment hole (131) is disposed on the bracket (11), and the alignment part (132) is disposed on the wire box (12); When the wire box (12) is installed on the bracket (11), the alignment part (132) is inserted into the alignment hole (131).

4. The anchoring device according to claim 1, characterized in that, The anchoring device (10) further includes an operating mechanism (4), which includes a sleeve (41), a clamping member (42) disposed on the sleeve (41) and detachably connected to the elastic member (2), and a top rod (43) passing through the sleeve (41) and the clamping member (42). The push rod (43) can slide along the inner wall of the sleeve (41) to support the suture seat (1) to rotate around the clamping member (42), so that the elastic member (2) is pulled by the clamping member (42) and deformed, thereby causing the elastic member (2) to drive the pressing member (3) to move away from the suture line.

5. The anchoring device according to claim 4, characterized in that, The clamping member (42) includes a clamping seat (421) disposed on the sleeve (41) and a U-shaped hook (422) disposed on the clamping seat (421); the clamping seat (421) is provided with a through hole (423), the push rod (43) passes through the through hole (423), and the U-shaped hook (422) is provided with a limiting hole (424) for limiting the elastic member (2) and having an opening.

6. The anchoring device according to claim 4, characterized in that, The operating mechanism (4) further includes a threaded seat (44) disposed on the sleeve (41) and an adjusting knob (45) screwed to the threaded seat (44) and connected to the push rod (43); when the adjusting knob (45) rotates along the thread on the threaded seat (44), the push rod (43) is driven by the adjusting knob (45) to slide inside the sleeve (41).

7. The anchoring device according to claim 4, characterized in that, The wire seat (1) has a transmission hole (125) that is compatible with the push rod (43). The push rod (43) is used to insert into the transmission hole (125) so that the end of the push rod (43) and the transmission hole (125) are supported against each other.

8. The anchoring device according to claim 1, characterized in that, The elastic element (2) is made of nickel-titanium alloy.

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