Anchoring member conveying system and its method, handle and magazine

Abstract

The present invention discloses an anchoring member conveying system, its method, a handle and a magazine, which are provided with a stroke adjusting mechanism for controlling the puncture length, facilitating the adjustment of the length of the puncturing needle piercing into the patient's tissue, reducing surgical trauma and surgical risks. A locking structure is provided to facilitate surgical operations and reduce the risk of surgical misoperations. It has a convenient instrument reset function, so that when the structure jams and fails, the internal structure can be conveniently reset manually to reduce the risk of surgical misoperations. The instrument structure of the present invention has a more reasonable and simple movement, is easy to operate and not prone to errors, and has better reliability.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to an anchor delivery system and its method, a handle and a magazine. Background Art

[0002] Currently, treatment options available for benign prostatic hyperplasia (BPH) include watchful waiting, medical treatment (phytotherapy and prescription drugs), surgery, and minimally invasive surgery. Surgical procedures for treating BPH symptoms include transurethral resection of the prostate (TURP), transurethral electrovaporization of the prostate (TVP), transurethral incision of the prostate (TUIP), laser prostatectomy, and open prostatectomy. Minimally invasive procedures for treating BPH symptoms include transurethral microwave thermotherapy (TUMT), transurethral needle ablation (TUNA), interstitial laser coagulation (ILC), and prostatic stents.

[0003] Many current methods for treating BPH have high-risk side effects. These methods and devices either require general anesthesia or spinal anesthesia, or have potential side effects, requiring surgery in a surgical operating room and then hospitalization of the patient. Methods for treating BPH with a lower risk of adverse reactions are also associated with a lower reduction in symptom scores. Although some of these procedures can be performed with local analgesia in an office setting, patients do not experience immediate relief and actually often experience more severe symptoms for several weeks after surgery until the body begins to heal. In addition, many device methods require a catheter to be placed in the bladder, which in some cases is required for several weeks. In some cases, catheterization is required because the treatment actually causes obstruction for some time after surgery, while in other cases, catheterization is required due to bleeding and potential occlusive clot formation after surgery. Although drug therapy is easy to administer, the results are not ideal, it takes a long time to take effect, and usually produces unwanted side effects.

[0004] Prostate suspension is a minimally invasive surgery that uses a transurethral implant device to dilate the blocked prostatic urethra. The principle is to implant a micro urethral suspension device to exert a suspension and compression effect on the hyperplastic and obstructive lateral lobes of the prostate, thereby dilating the blocked prostatic urethra and improving the patient's obstructive symptoms. However, the existing surgical instruments for prostate suspension treatment have the following defects:

[0005] 1. The puncture length cannot be adjusted, and the length of the puncture needle is fixed, which causes greater damage and higher risk to patients with small glands.

[0006] 2. The structure is complex and the operation steps are numerous, which easily leads to misoperation by doctors.

[0007] 3. The device reset function for convenient operation is not set, and when the structure jams and fails, it is impossible to conveniently reset the internal structure, increasing the surgical risk. Summary of the Invention

[0008] To solve the above technical problems, one of the objectives of the present invention is to provide an anchor delivery system, which is provided with a stroke adjustment mechanism for controlling the puncture length, so as to facilitate adjusting the length of the puncture needle inserted into the patient's tissue and reducing surgical trauma and surgical risk.

[0009] Another objective of the present invention is to provide an anchor delivery system, whose structural movement is more reasonable and simple, easy to operate without errors, and has better reliability.

[0010] A third objective of the present invention is to provide an anchor delivery system, which is provided with a locking structure to facilitate surgical operation and reduce the risk of surgical misoperation.

[0011] A fourth objective of the present invention is to provide an anchor delivery system, which has a convenient device reset function, so that when the structure jams and fails, the internal structure can be conveniently manually reset to reduce the risk of surgical misoperation.

[0012] A fifth objective of the present invention is to provide an anchor delivery method for the above-mentioned anchor delivery system.

[0013] A sixth objective of the present invention is to provide a magazine for the above-mentioned anchor delivery system.

[0014] A seventh objective of the present invention is to provide a handle for the above-mentioned anchor delivery system.

[0015] To achieve the above objectives, the present invention adopts the following technical solutions:

[0016] A magazine for an anchor delivery system includes: a puncture needle tube, a puncture needle capable of moving back and forth is inserted into the puncture needle tube, a suture capable of moving back and forth is inserted into the puncture needle, and the proximal end of the puncture needle tube is fixedly connected to the front end of the magazine body; a push-pull tube, a shear rod and a push rod capable of moving back and forth are inserted into the push-pull tube, and the proximal end of the push-pull tube is fixedly connected to the front end of the magazine body; a puncture needle connector, which is installed in the magazine body in a manner capable of sliding back and forth, and the front part of the puncture needle connector is fixedly connected to the proximal end of the puncture needle; a push-shear mechanism for driving the push rod to push and clamp the proximal anchor to fix the suture and for driving the shear rod to drive the blade to cut the suture; a stroke adjustment mechanism, which is installed in the magazine body to block the forward movement of the puncture needle connector so as to control the puncture length. In this way, the length of the puncture needle inserted into the patient's tissue can be conveniently and quickly adjusted through the stroke adjustment mechanism, reducing surgical trauma and surgical risk.

[0017] Preferably, the stroke adjustment mechanism includes a stroke adjustment member, which is threadedly connected to the magazine body through a threaded rod; the stroke adjustment member is located in the chute of the magazine body and can slide back and forth. The stroke adjustment member is connected to a stroke adjustment cap outside the magazine body through a threaded rod. The threaded rod is threadedly connected to the magazine body. The stroke adjustment member is sleeved on the rear end of the threaded rod. The stroke adjustment cap is installed at the front end of the threaded rod and can rotate the threaded rod. When the stroke adjustment cap rotates, it drives the threaded rod to rotate, thereby controlling the forward and backward movement of the stroke adjustment member.

[0018] Preferably, the stroke adjustment mechanism further includes a buffer pin. The threaded rod is a hollow rod with a central hole. The threaded rod is sleeved on the buffer pin. The rear end of the buffer pin extends out of the threaded rod and is given a buffering tendency by a spring. The buffer pin can slide back and forth in the stroke adjustment member and can abut against and limit the puncture needle connecting piece.

[0019] Preferably, the stroke adjustment mechanism further includes a position indication cap. The front end of the buffer pin extends out of the threaded rod and the stroke adjustment cap and is fixedly connected to the position indication cap.

[0020] Preferably, the stroke adjustment mechanism further includes a stroke scale rod. The front end of the stroke scale rod is axially fixed to the front part of the threaded rod and can rotate relatively. The rear end of the stroke scale rod passes through a through hole provided at the front end of the magazine body and is connected to the stroke adjustment member in the magazine body. Scale marks corresponding to each puncture length are provided on the stroke scale rod; the stroke scale rod is bent from a metal rod, and its front end is bent into a ring and sleeved on the front part of the threaded rod. The flange on the threaded rod cooperates with the stroke adjustment cap to clamp and position the front end ring of the stroke scale rod.

[0021] Preferably, the pushing and shearing mechanism includes a shearing part and a pushing part. The shearing part is installed in the magazine body in a manner that can slide back and forth. The shearing part pulls the blade backward through a shearing rod to complete the action of cutting the suture; the pushing part is installed in the magazine body in a manner that can slide back and forth. The pushing part pushes the proximal anchor forward through a pushing rod.

[0022] Preferably, the proximal end of the suture is fixedly connected to a suture fixing seat. The suture fixing seat is installed in the inner cavity of the puncture needle connecting piece. A guide rod passes through the inner cavity of the puncture needle connecting piece and can slide back and forth together with the suture fixing seat. A spring for giving the suture fixing seat a tendency to move backward is sleeved on the guide rod; a hook is provided on the stroke adjustment member, and the hook can cooperate with a groove provided on the guide rod to limit the backward movement of the guide rod.

[0023] Preferably, the suture fixing seat is sleeved on the guide rod. One end of the spring abuts against the suture fixing seat and the guide rod, and the other end of the spring abuts against the puncture needle connecting piece.

[0024] A magazine for an anchor delivery system, comprising: a puncture needle tube, within which a puncture needle capable of moving back and forth is inserted, and within the puncture needle, a suture capable of moving back and forth is inserted. The proximal end of the puncture needle tube is fixedly connected to the front end of the magazine body; a push-pull tube, within which a shear rod and a push rod capable of moving back and forth are inserted. The proximal end of the push-pull tube is fixedly connected to the front end of the magazine body; a puncture needle connector, which is installed in the magazine body in a manner capable of sliding back and forth. The front part of the puncture needle connector is fixedly connected to the proximal end of the puncture needle; a shearing component, which is installed in the magazine body in a manner capable of sliding back and forth. The shearing component pulls the blade backward through the shear rod to complete the action of cutting the suture; a pushing component, which is installed in the magazine body in a manner capable of sliding back and forth. The pushing component pushes the proximal anchor forward through the push rod; the shearing component and the pushing component are arranged front and back and are connected by a tension spring to pull the two towards each other; a support member, which is installed between the shearing component and the pushing component. The front and back ends of the support member can move and have two position states: when the support member is in the first position, it limits the backward movement of the shearing component and does not limit the pushing component; when the support member is in the second position, it limits the forward movement of the pushing component and does not limit the shearing component. In this way, the structural movement is more reasonable and simple, the operation is easy and not prone to errors, and the reliability is better.

[0025] Preferably, the middle part of the support member is hinged to the magazine body through a hinge pin.

[0026] Preferably, a limit post is provided below the front end of the support member.

[0027] Preferably, the rear end of the support member includes a first limit end and a second limit end, and the two limit ends are V-shaped. The first limit end always blocks in front of the pushing component, and when the pushing component moves forward, it can push the support member to swing and implement the limit.

[0028] Preferably, the pushing component and the shearing component slide along the same straight line, and the tension spring is always in a stretched state. The tension released by the tension spring pulls the shearing component and the pushing component towards each other.

[0029] Preferably, a push locking member is further provided in the magazine body. When the push locking member is in the initial position, it is connected to the pushing component, so that the pushing component is locked and cannot move.

[0030] Preferably, the push locking member has a hook portion, and the hook portion cooperates with a clamping portion on the pushing component to achieve limit locking.

[0031] Preferably, the push locking member has a release portion, and the cutting trigger rod on the handle pushes the release portion to move the push locking member left and right, thereby unlocking the pushing component.

[0032] A magazine for an anchor delivery system, comprising: a puncture needle tube, a puncture needle capable of moving back and forth is inserted into the puncture needle tube, a suture capable of moving back and forth is inserted into the puncture needle, and the proximal end of the puncture needle tube is fixedly connected to the front end of the magazine body; a push-pull tube, a shear rod and a push rod capable of moving back and forth are inserted into the push-pull tube, and the proximal end of the push-pull tube is fixedly connected to the front end of the magazine body; a puncture needle connector, the puncture needle connector is installed in the magazine body in a manner capable of sliding back and forth, and the front part of the puncture needle connector is fixedly connected to the proximal end of the puncture needle; a shearing component, the shearing component is installed in the magazine body in a manner capable of sliding back and forth, and the shearing component pulls the blade backward through the shear rod to complete the action of cutting the suture; a pushing component, the pushing component is installed in the magazine body in a manner capable of sliding back and forth, and the pushing component pushes the proximal anchor forward through the push rod; the shearing component and the pushing component are arranged front and back and are connected by a tension spring to pull the two towards each other; three manual push buttons are respectively slidably arranged outside the magazine body, the first manual push button extends into the magazine body and is fixedly connected to the puncture needle connector, the second manual push button extends into the magazine body and is fixedly connected to the shearing component, and the third manual push button extends into the magazine body and is fixedly connected to the pushing component. In this way, when a jamming fault occurs in the internal structure of the magazine, the movement and reset of the puncture needle connector, the pushing component and the shearing component in the magazine can be controlled by moving the manual push buttons outside the magazine housing.

[0033] Preferably, a cover plate is fixed on the magazine body, and the two are fixedly connected through a snap structure.

[0034] Preferably, three sliding grooves are formed on the cover plate, the three manual push buttons respectively move back and forth along the three sliding grooves, and the three manual push buttons are respectively fixedly connected to the puncture needle connector, the shearing component or the pushing component through a snap structure.

[0035] Preferably, a locking push button seat and a locking push button are provided on the cover plate, the locking push button seat is fixedly connected or integrally formed with the cover plate, the locking push button is installed on the cover plate in a manner capable of sliding, and the locking push button seat and the locking push button are abutted against each other through a compression spring so that the locking push button is given a tendency to eject. When the locking push button ejects, it is fixedly connected to the magazine body through a snap structure. In this way, when an external force is applied to the locking push button, the snap structure of the locking push button retracts, and the magazine can be loaded into the magazine bin of the handle. When the external force applied to the locking push button is removed, the locking push button locks into the handle under the action of the compression spring. At this time, the magazine loading is completed, and the puncture needle connector is fixed in cooperation with the energy storage slider.

[0036] Preferably, the proximal end of the suture is fixedly connected to a suture fixing seat, the suture fixing seat is installed on the puncture needle connector in a manner capable of sliding back and forth, and the distal end of the suture is fixedly connected to a distal anchor.

[0037] Preferably, a distal end of the puncture needle tube is fixed with a head end component, an arc-shaped channel communicating with the distal end of the puncture needle tube is arranged inside the head end component, a distal end of the push-pull tube is connected with the head end component, and a proximal end anchor is arranged inside an opening at the distal end of the push-pull tube and can move back and forth and be disengaged.

[0038] Preferably, the shearing component is fixedly connected with a proximal end of the shearing rod, a distal end of the shearing rod is connected with a blade, and the shearing rod drives the blade to move backward under the drive of the shearing component to complete a shearing action.

[0039] Preferably, a support tube is further included, a cross section of the support tube is semi-circular for cooperating with an endoscope tube, and upper and lower sides thereof are respectively used for fixedly connecting the puncture needle tube and the push-pull tube.

[0040] An anchor delivery system includes a magazine for an anchor delivery system as described above.

[0041] A handle for an anchor delivery system includes: an energy storage slider which is arranged in a handle housing in a manner capable of sliding back and forth and is connected with a puncture needle connecting piece in the magazine to move synchronously, the energy storage slider is connected with the handle housing through an energy storage spring so as to be given a tendency to move forward, the energy storage slider is connected with the handle housing through a ratchet mechanism so as to be restricted from moving forward, when the energy storage slider moves backward in place, the ratchet mechanism fails, and thus the energy storage slider moves forward rapidly under the action of the energy storage spring; a trigger component which is arranged in the handle housing in a manner capable of sliding back and forth, the trigger component is given a tendency to move forward through a trigger spring, and the trigger component is connected with or disengaged from a sliding push block through a clutch structure: when the trigger component is connected with the energy storage slider, it can drive the energy storage slider to move backward; when the trigger component moves backward in place, it is disengaged from the energy storage slider and cannot drive the energy storage slider to move. In this way, the structural action is more reasonable and simple, the operation is simple and not easy to make mistakes, and the reliability is better.

[0042] Preferably, the clutch structure includes a sliding push block arranged on the trigger component and capable of sliding up and down, and the sliding push block can be connected with or disengaged from the energy storage slider: when the sliding push block is connected with the energy storage slider, the trigger component can drive the energy storage slider to move backward; when the trigger component moves backward in place, the sliding push block is disengaged from the energy storage slider, and the trigger component cannot drive the energy storage slider to move.

[0043] Preferably, the sliding push block is connected with the trigger component through a spring, and in a natural state, the sliding push block is in a popped-up state under the action of the spring force, so that it can be connected with the energy storage slider.

[0044] Preferably, when the trigger component moves backward in place, the sliding push block abuts against a ramp boss on a first limiting member and moves downward to be disengaged from the energy storage slider.

[0045] Preferably, the pawl mechanism includes a retaining block, a locking slider, and a connecting rod. The retaining block and the locking slider are each slidably mounted on the energy storage slider. One end of the retaining block is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to one end of the locking slider. The other end of the locking slider can be ejected or retracted: when the locking slider is ejected, it can cooperate with the ratchet teeth on the first limiting member to limit the forward movement of the energy storage slider; when the locking slider is retracted, the pawl mechanism fails; the retaining block is connected to the energy storage slider through a retaining spring so that the retaining block gives the locking slider a tendency to maintain ejection or retraction; the first limiting member is fixedly connected or integrally formed with the handle housing.

[0046] Preferably, the retaining block is slidably mounted on the energy storage slider in a front-to-back sliding manner, and the locking slider is slidably mounted on the energy storage slider in an up-and-down sliding manner. The lower end of the locking slider can be ejected or retracted; in the initial state, the retaining block pushes the connecting rod to pivot and pushes the locking slider downward so that the locking slider is located and maintained in the ejected position.

[0047] Preferably, the locking slider and the connecting rod are hinged by a hinge pin. One end of the hinge pin extends into a chute on the handle housing. The rear end of the chute is a lifting ramp. When the hinge pin moves backward to this position, it is lifted, and the locking slider remains in the retracted state; a descending ramp is provided at the front of the chute. When the hinge pin moves forward to this position, it is pressed down, and the locking slider remains in the ejected state.

[0048] Preferably, the descending ramp is integrally formed on the stroke adjusting member in the magazine.

[0049] A handle for an anchor conveying system includes: an energy storage slider slidably disposed in a handle housing and connected to a puncture needle connecting member in a magazine for synchronous movement. The energy storage slider is connected to the handle housing through an energy storage spring so as to be given a tendency to move forward; a trigger member slidably disposed in the handle housing. The trigger member is given a tendency to move forward through a trigger spring; a locking member slidably disposed in the handle housing. The locking member has a locking position and an unlocking position: when the locking member is in the locking position, the locking member can limit the backward movement of the trigger member, and the pawl mechanism of the energy storage slider is effective to limit its forward movement; when the locking member is in the unlocking position, the trigger member can move backward, thereby causing the pawl mechanism of the energy storage slider to fail, and the sliding block is disengaged from the energy storage slider. In this way, by setting the locking member to cooperate with the trigger member to perform puncture, the risk of misoperation of a single trigger member firing is avoided, the operation is convenient, and the reliability is good.

[0050] Preferably, the handle housing includes a lower housing and an upper housing fixedly connected as a whole. A magazine bin for placing a magazine is provided on the upper housing. A chute through which a connecting post passes is formed on the upper housing. The energy storage slider and the puncture needle connecting member are connected by the connecting post to achieve synchronous movement.

[0051] Preferably, the trigger component slides back and forth by cooperating with the chutes on the lower housing and the upper housing through the slide tables provided on the left and right sides. The trigger spring is a tension spring, which is inserted into the through hole of the trigger component. The two ends of the tension spring are respectively connected to the trigger component and the handle housing through connecting pins.

[0052] Preferably, the locking member is connected to the lower housing through a spring so as to be given a tendency to move upward. A locking boss for restricting the backward movement of the trigger component is provided on the locking member, and the locking boss protrudes forward. An unlocking pin that can slide back and forth is installed on the locking member. The unlocking pin is pushed forward by a compression spring against the locking member. When the unlocking pin is pushed forward and inserted into the limiting groove on the second limiting member, the locking member is in the locking position, and the locking boss can abut against the protruding part at the rear end of the trigger component to restrict the backward movement of the trigger component. When the unlocking pin is pushed forward and abuts against the limiting protrusion on the second limiting member, the locking member is in the unlocking position, and the locking boss and the protruding part at the rear end of the trigger component are vertically misaligned so as not to restrict the backward movement of the trigger component. When the trigger component continues to move backward in place, the protruding part at the rear end of the trigger component pushes the unlocking pin to retract, and the locking member moves upward under the action of the spring to reset to the locking position. The second limiting member is fixedly connected or integrally formed with the lower housing. The locking member is in the locking position in the initial state. In this way, unlocking is achieved by pressing the locking member, and re-locking is achieved by firing the puncture with the trigger component and simultaneously pushing back the unlocking pin, avoiding the risk of misoperation of re-puncturing.

[0053] Preferably, the limiting groove and the limiting protrusion on the second limiting member are arranged vertically and are transitioned by a slope therebetween.

[0054] Preferably, a cutting trigger rod and an elastic limiting member are further provided. The cutting trigger rod is installed in the handle housing in a manner that can slide up and down. The cutting trigger rod is fixedly connected to a cutting push button slidably arranged outside the handle housing. The elastic limiting member is used to lock the cutting trigger rod to prevent its up and down movement. When the trigger component moves backward in place, it pushes against the elastic limiting member to unlock, so that the cutting trigger rod can move up and down. The cutting trigger rod pushes the release part on the pushing lock stop member to move the pushing lock stop member left and right, thereby unlocking the pushing component, and the pushing and cutting mechanism clamps and cuts the suture. In this way, the pushing and cutting mechanism can only act after the trigger component moves backward in place, ensuring that the distal anchor is released and the suture is tensioned before the suture is clamped and cut, avoiding the risk of surgical misoperation.

[0055] Preferably, through holes for the shearing trigger rod to pass through are formed in both the handle housing and the magazine housing; the upper part of the shearing trigger rod is U-shaped. One end of its upper part passes through the through hole and extends into the magazine to unlock the pushing locking member, and the other end of its upper part cooperates with the locking member for limiting: when the locking member is in the unlocking position, the locking member can limit the upward movement of the shearing trigger rod; when the locking member is in the locking position, the shearing trigger rod is not restricted. In this way, only when the locking member is locked can the pushing and shearing mechanism operate, avoiding the risk of accidental operation of the pushing and shearing mechanism during puncture and causing surgical risks.

[0056] Preferably, the shearing trigger rod is installed in a chute formed by the upper housing and the lower housing and can slide up and down. It is connected to the shearing push button through a snap structure. The elastic limiting member is an elastic stop strip, which is V-shaped. One end of the elastic stop strip is fixed in a card slot of the lower housing, and the other end of the elastic stop strip is inserted into a card slot on the shearing trigger rod. When the shearing trigger rod is in the initial position, the elastic stop strip contacts the boss of the lower housing, locking the shearing trigger rod and preventing it from moving; when the trigger component moves backward in place, the elastic stop strip is compressed, and the other end of the elastic stop strip withdraws from the card slot on the shearing trigger rod, and the shearing trigger rod can move up and down.

[0057] An anchor delivery system employs a handle for an anchor delivery system as described above.

[0058] An anchor delivery system includes a handle and a magazine. The magazine includes: a puncture needle tube, in which a puncture needle capable of moving back and forth is inserted. The proximal end of the puncture needle tube is fixedly connected to the front end of the magazine housing, and the distal end of the puncture needle tube is fixedly connected to the head end component; a push-pull tube, in which a shearing rod and a pushing rod capable of moving back and forth are inserted. The proximal end of the push-pull tube is fixedly connected to the front end of the magazine housing, and a proximal anchor capable of moving back and forth and disengaging is provided in the distal opening of the push-pull tube. The distal end of the push-pull tube is fixedly connected to the head end component; a puncture needle connecting piece, the front part of which is fixedly connected to the proximal end of the puncture needle. A suture capable of moving back and forth is inserted in the puncture needle. The proximal end of the suture is fixedly connected to a suture fixing seat, and the suture fixing seat is installed on the puncture needle connecting piece in a manner capable of sliding back and forth. The distal end of the suture is fixedly connected to a distal anchor; a push-shear mechanism for driving the pushing rod to push the proximal anchor to clamp and fix the suture and for driving the shearing rod to drive the blade to cut the suture. The handle includes: an energy storage slider, which is arranged in the handle housing in a manner capable of sliding back and forth and is connected to the puncture needle connecting piece in the magazine to move synchronously. The energy storage slider is connected to the handle housing through an energy storage spring and thus is given a tendency to move forward. The energy storage slider is connected to the handle housing through a ratchet mechanism and thus is restricted from moving forward. When the energy storage slider moves backward in place, the ratchet mechanism fails, and thus the energy storage slider quickly moves forward under the action of the energy storage spring; a trigger component, which is arranged in the handle housing in a manner capable of sliding back and forth. The trigger component is given a tendency to move forward through a trigger spring. A sliding push block capable of sliding up and down is arranged on the trigger component, and the sliding push block can be connected to or disengaged from the energy storage slider: when the sliding push block is connected to the energy storage slider, the trigger component can drive the energy storage slider to move backward; when the trigger component moves backward in place, the sliding push block is disengaged from the energy storage slider, and the trigger component cannot drive the energy storage slider to move; wherein, a magazine bin for placing the magazine is provided on the handle housing, the magazine is installed on the handle housing in a detachable and replaceable manner, and sliding grooves for the connecting column to pass through are opened on both the handle housing and the magazine housing. The energy storage slider and the puncture needle connecting piece are connected through the connecting column to achieve synchronous movement.

[0059] Preferably, the pushing and shearing mechanism includes: a shearing component which is installed in the magazine body in a manner capable of sliding back and forth. The shearing component is fixedly connected to the proximal end of a shearing rod, and the distal end of the shearing rod is connected to a blade. The shearing rod drives the blade to pull backward under the drive of the shearing component to complete the shearing action; a pushing component which is installed in the magazine body in a manner capable of sliding back and forth. The pushing component is fixedly connected to the proximal end of a pushing rod, and the pushing rod drives the proximal anchor to push forward under the drive of the pushing component. The shearing component and the pushing component are arranged front and back and are connected by a tension spring to pull each other; a support component which is installed between the shearing component and the pushing component. The front and rear ends of the support component can move and have two position states: when the support component is in the first position, its front end limits the backward movement of the shearing component, and its rear end does not limit the pushing component; when the support component is in the second position, its rear end limits the forward movement of the pushing component, and its front end does not limit the shearing component.

[0060] Preferably, the pushing and shearing mechanism further includes a pushing locking component arranged in the magazine body. When the pushing locking component is in the initial position, it is connected to the pushing component, so that the pushing component is locked and cannot move.

[0061] Preferably, the pushing locking component has a hook part which cooperates with a clamping part on the pushing component to achieve limit locking; the pushing locking component further has a release part. The shearing trigger rod on the handle realizes the left and right movement of the pushing locking component by pushing the release part, and then the pushing component is unlocked to perform suture fixation and cutting.

[0062] Preferably, the shearing trigger rod is installed in the handle housing in a manner capable of sliding up and down. The shearing trigger rod is fixedly connected to a shearing push button slidably arranged outside the handle housing. An elastic limiting component is used to lock the shearing trigger rod to prevent its up and down movement; when the trigger component moves backward in place, it pushes against the elastic limiting component to unlock, so that the shearing trigger rod can move up and down. The shearing trigger rod realizes the left and right movement of the pushing locking component by pushing the release part on the pushing locking component, and then the pushing component is unlocked, and the pushing and shearing mechanism clamps and cuts the suture.

[0063] Preferably, it further includes a stroke adjustment mechanism installed in the magazine body for blocking the forward movement of the puncture needle connecting piece to control the puncture length; the stroke adjustment mechanism includes a stroke adjustment piece which is located in the chute of the magazine body and can slide back and forth. The stroke adjustment piece is connected to a stroke adjustment cap outside the magazine body through a threaded rod. The threaded rod is threadedly connected to the magazine body. The stroke adjustment piece is sleeved on the rear end of the threaded rod, and the stroke adjustment cap is installed at the front end of the threaded rod and can rotate the threaded rod. When the stroke adjustment cap rotates, it drives the threaded rod to rotate, thereby controlling the forward and backward movement of the stroke adjustment piece.

[0064] Preferably, the ratchet mechanism includes a retaining block, a locking slider, and a connecting rod. The retaining block and the locking slider are each slidably mounted on the energy storage slider. One end of the retaining block is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to one end of the locking slider. The other end of the locking slider can be ejected or retracted: when the locking slider is ejected, it can cooperate with the ratchet teeth on the first limiting member to restrict the forward movement of the energy storage slider; when the locking slider is retracted, the ratchet mechanism fails; the retaining block is connected to the energy storage slider through a retaining spring so that the retaining block gives the locking slider a tendency to maintain ejection or retraction.

[0065] Preferably, the locking slider and the connecting rod are hinged by a hinge pin. One end of the hinge pin extends into a chute on the handle housing, and the chute is opened on the upper housing or the lower housing of the handle. The rear end of the chute is a lifting ramp, and when the hinge pin moves backward to this position, it is lifted, and the locking slider remains in the retracted state; a descending ramp is provided at the front of the chute, and the descending ramp is formed on the stroke adjusting member. When the hinge pin moves forward to this position, it is pressed down, and the locking slider remains in the ejected state.

[0066] Preferably, a locking push button seat and a locking push button are provided on the cover plate of the magazine. The locking push button seat is fixedly connected or integrally formed with the cover plate. The locking push button is slidably mounted on the cover plate. The locking push button seat and the locking push button are pressed against each other by a compression spring so that the locking push button is given a tendency to eject. When the locking push button ejects, it is fixedly connected to the magazine body through a snap structure.

[0067] An anchoring element conveying method uses an anchoring element conveying system as described above.

[0068] Since the present invention adopts the above technical solutions, a stroke adjusting mechanism for controlling the puncture length is provided, which is convenient for adjusting the length of the puncture needle inserted into the patient's tissue, reducing surgical injury and surgical risk. A locking structure is provided, which is convenient for surgical operation and reduces the risk of surgical misoperation. It has a convenient instrument reset function, so that when the structure jams and fails, the internal structure can be conveniently manually reset to reduce the risk of surgical misoperation. The instrument structure of the present invention moves more reasonably and simply, is easy to operate and not easy to make mistakes, and has better reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] The specification drawings forming a part of the present application are used to provide a further understanding of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation to the present application.

[0070] Figure 1 It is a schematic structural diagram of the anchoring element conveying system of the present invention;

[0071] Figure 2 It is an exploded view of the handle of the present invention;

[0072] Figure 3 Exploded view of the magazine of the present invention;

[0073] Figure 4 One of the schematic structural diagrams of the puncture needle and the puncture needle connector inside the magazine of the present invention.

[0074] Figure 5 Another schematic structural diagram of the puncture needle and the puncture needle connector inside the magazine of the present invention.

[0075] Figure 6 Schematic diagram of the mating structure between the puncture needle connector and the energy storage slider of the present invention.

[0076] Figure 7 Schematic diagram of the structure of the head assembly of the magazine of the present invention.

[0077] Figure 8 Schematic diagram of the structure of the head assembly of the magazine and the pushing and shearing mechanism of the present invention.

[0078] Figure 9 Schematic diagram of the internal structure of the magazine of the present invention.

[0079] Figure 10 Schematic diagram of the positions of the components inside the handle of the present invention (initial state, first position).

[0080] Figure 11 Schematic diagram of the positions of the components inside the handle of the present invention (after the trigger is pressed for the first time and the handle completes energy storage).

[0081] Figure 12 Schematic diagram of the operation of the locking member inside the handle of the present invention (when the locking member is pressed down, the unlocking pin moves).

[0082] Figure 13 Schematic diagram of the operation of the locking member inside the handle of the present invention (the locking member completes unlocking).

[0083] Figure 14 Schematic diagram of the positions of the components inside the handle of the present invention (after the trigger is pressed for the second time, ready to release the puncture needle).

[0084] Figure 15 Schematic diagram of the lifting of the locking slider inside the handle of the present invention (after the trigger is pressed for the second time, ready to release the puncture needle).

[0085] Figure 16 Schematic diagram of the lowering of the locking slider inside the handle of the present invention (after the puncture needle is released).

[0086] Figure 17 Schematic diagram of the stroke adjustment block inside the magazine of the present invention limiting the guide rod.

[0087] Figure 18Schematic diagram of the pushing component in the magazine of the present invention being limited by the pushing locking component.

[0088] Figure 19 Schematic diagram of the operation of the pushing and shearing mechanism of the present invention (initial state, first position).

[0089] Figure 20 Schematic diagram of the operation of the pushing and shearing mechanism of the present invention (releasing the proximal anchor).

[0090] Figure 21 Schematic diagram of the operation of the pushing and shearing mechanism of the present invention (cutting the suture).

[0091] Figure 22 Schematic diagram of the punctured tissue after the puncture needle is released.

[0092] Figure 23 Schematic diagram of releasing the distal anchor after the puncture needle is retracted.

[0093] Figure 24 Schematic diagram of the proximal anchor and the distal anchor fixed in the tissue. Detailed implementation manners

[0094] The present invention will be further described below in conjunction with the drawings and embodiments.

[0095] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0096] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0097] In the description of the present invention, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0098] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0099] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

[0100] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0101] In the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0102] For the convenience of description, in the present invention, Figure 1 the left side is regarded as the front, the right side is regarded as the rear, the upper side is regarded as the top, the lower side is regarded as the bottom, and the other two sides perpendicular to the front-rear direction are divided into left and right. The surgical end of the instrument is regarded as the distal end, and the operating end of the instrument is regarded as the proximal end. Embodiment

[0103] As Figure 1An anchoring element delivery system as shown, comprising a handle 100 and a magazine 200. The magazine 200 is installed on the handle 100 in a detachable and replaceable manner. The handle 100 transfers the mechanical energy stored in itself to the inside of the magazine 200 to deliver the implant into the patient's body.

[0104] As Figure 3 shown, the magazine 200 includes:

[0105] A puncture needle tube 224, in which a puncture needle 221 capable of moving back and forth is inserted. The proximal end of the puncture needle tube 224 is fixedly connected to the front end of the magazine housing, and the distal end of the puncture needle tube 224 is fixedly connected to the head end component 222;

[0106] A push-pull tube 225, in which a shear rod 228 and a push rod 227 capable of moving back and forth are inserted. The proximal end of the push-pull tube 225 is fixedly connected to the front end of the magazine housing. Inside the distal opening of the push-pull tube 225, there is a proximal anchoring element 400 capable of moving back and forth and being ejected. The distal end of the push-pull tube 225 is fixedly connected to the head end component 222;

[0107] A puncture needle connecting piece 208, the front part of which is fixedly connected to the proximal end of the puncture needle 221. Inside the puncture needle 221, there is a suture 500 capable of moving back and forth. The proximal end of the suture 500 is fixedly connected to the suture fixing seat 211. The suture fixing seat 211 is installed on the puncture needle connecting piece 208 in a manner capable of sliding back and forth. The distal end of the suture 500 is fixedly connected to the distal anchoring element 300;

[0108] A shearing component 212, which is installed in the magazine housing in a manner capable of sliding back and forth. The shearing component 212 is fixedly connected to the proximal end of the shear rod 228. The distal end of the shear rod 228 is connected to the blade 223. The shear rod 228 drives the blade 223 to move backward under the drive of the shearing component 212 to complete the shearing action;

[0109] A pushing component 213, which is installed in the magazine housing in a manner capable of sliding back and forth. The pushing component 213 is fixedly connected to the proximal end of the push rod 227. The push rod 227 drives the proximal anchoring element 400 to move forward under the drive of the pushing component 213. The shearing component 212 and the pushing component 213 are arranged front and back and are connected by a tension spring 233 to pull the two towards each other;

[0110] A support member 214 is installed between the shearing member 212 and the pushing member 213. The front and rear ends of the support member 214 can move and have two position states: when the support member 214 is in the first position, its front end limits the backward movement of the shearing member 212, and its rear end does not limit the forward movement of the pushing member 213; when the support member 214 is in the second position, its rear end limits the forward movement of the pushing member 213, and its front end does not limit the backward movement of the shearing member 212.

[0111] As Figure 7 shown, it further includes a support tube 226. The cross-section of the support tube is semi-circular for cooperating with the endoscope tube, and its upper and lower sides are respectively used for fixedly connecting the puncture needle tube 224 and the push-pull tube 225. An arc-shaped channel communicating with the distal end of the puncture needle tube 224 is provided in the head end member 222, so that after the puncture needle 221 is bent, it can extend from one side thereof for puncture.

[0112] Preferably, this embodiment further includes a stroke adjustment mechanism installed in the magazine housing for blocking the forward movement of the puncture needle connector 208 to control the puncture length.

[0113] Preferably, this embodiment, as Figure 9 and Figure 16 shown, the stroke adjustment mechanism includes a stroke adjustment member 209. The stroke adjustment member 209 is located in the chute of the magazine housing and can slide back and forth. The stroke adjustment member 209 is connected to a stroke adjustment cap 204 outside the magazine housing through a threaded rod 205. The threaded rod 205 is threadedly connected to the magazine housing. The stroke adjustment member 209 is sleeved on the rear end of the threaded rod 205. The stroke adjustment cap 204 is installed at the front end of the threaded rod 205 and can rotate the threaded rod 205. When the stroke adjustment cap 204 rotates, it drives the threaded rod 205 to rotate, thereby controlling the forward and backward movement of the stroke adjustment member 209 along the threaded rod 205. In this way, by rotating the threaded rod, the blocking position of the stroke adjustment member against the puncture needle connector can be adjusted, realizing the adjustment of the puncture length. The structure is simple and the adjustment is convenient.

[0114] Further preferably, the stroke adjustment mechanism further includes a buffer pin 206 and a position-in-place reminder cap 203. The threaded rod 205 is a hollow rod with a central hole. The threaded rod 205 is sleeved on the buffer pin 206. The front end of the buffer pin 206 extends out of the threaded rod 205 and the stroke adjustment cap 204 and is fixedly connected to the position-in-place reminder cap 203. The rear end of the buffer pin 206 extends out of the threaded rod 205 and is given a buffering tendency by a spring. The buffer pin 206 can slide back and forth within the stroke adjustment member 209 and can abut against a limiting boss 2083 on the puncture needle connecting member 208. In this way, when the puncture needle connecting member moves forward, it hits the buffer pin and completely pushes the buffer pin into the stroke adjustment member and then stops sliding. At the same time, the buffer pin pushes out the position-in-place reminder cap. Through the buffer pin, not only can the puncture needle connecting member be buffered and limited, but also it is convenient for the doctor to quickly judge whether the puncture is successful through the position-in-place reminder cap.

[0115] Further preferably, the stroke adjustment mechanism further includes a stroke scale rod 207. The front end of the stroke scale rod 207 is axially fixed to the front part of the threaded rod 205 and can rotate relatively. The rear end of the stroke scale rod 207 passes through a through hole provided at the front end of the magazine housing and is connected to a stroke adjustment member 209 within the magazine housing. Scale marks corresponding to each puncture length are provided on the stroke scale rod 207. In this way, when the threaded rod moves back and forth, the stroke scale screw rod moves along and displays the scale, which is simple and intuitive and convenient for quickly adjusting the puncture length.

[0116] In this embodiment, the stroke scale rod 207 is bent from a metal rod. Its front end is bent into an annular loop and sleeved on the front part of the threaded rod 205. A flange on the threaded rod 205 and the stroke adjustment cap 204 cooperate to clamp and position the front annular loop of the stroke scale rod 207.

[0117] This embodiment preferably, as Figure 4 and Figure 5 shown, the suture fixing seat 211 is installed in the inner cavity of the puncture needle connecting member 208. A guide rod 210 passes through the inner cavity of the puncture needle connecting member 208 and can slide back and forth together with the suture fixing seat 211. A spring 232 for giving the suture fixing seat 211 a tendency to move backward is sleeved on the guide rod 210. The suture fixing seat 211 is sleeved on the guide rod 210. One end of the spring 232 abuts against the suture fixing seat 211 and the guide rod 210, and the other end of the spring 232 abuts against the puncture needle connecting member 208. A hook 2091 is provided on the stroke adjustment member 209. This hook 2091 can cooperate with a groove 2101 provided on the guide rod 210 to limit the backward movement of the guide rod 210. In this way, after the puncture needle completes the puncture and is released, by using the hook to limit the backward movement of the guide rod and the suture fixing seat together with the puncture needle connecting member, it can ensure that the distal anchor can be released from the distal end of the puncture needle; by providing the spring, the suture can be effectively tensioned, which is convenient for releasing the proximal anchor.

[0118] In this embodiment, a suture support tube 231 is connected to the proximal end of the suture 500 to facilitate the pushing and pulling movement of the suture and its connection to the suture fixing base. The suture support tube is fixed on the suture fixing base, and the suture support tube is crimped and fixed to the suture.

[0119] The shearing member 212, the pushing member 213, the support member 214 and their connection structures form a pushing and shearing mechanism for driving the pushing rod 227 to push the proximal anchor 400 to clamp and fix the suture and for driving the shearing rod 228 to drive the blade 223 to cut the suture.

[0120] Preferably in this embodiment, as Figure 9 and Figure 19 shown, the middle part of the support member 214 is hinged to the magazine body through a hinge pin 230. A limit post 2144 is provided below the front end 2141 of the support member 214, which can not only prevent the support member 214 from swinging excessively, but also a compression spring can be arranged between it and the magazine body to urge the support member 214 to return to the first position state. The rear end of the support member 214 includes a first limit end 2142 and a second limit end 2143, and the two limit ends are in a V shape. The first limit end 2142 always blocks in front of the pushing member 213, so that when the pushing member 213 moves forward, it can timely push the support member 214 to swing and implement the limit.

[0121] In this embodiment, the support member 214 has an engagement position that engages with the shearing member 212, so that the support member 214 can prevent the shearing member 212 from sliding towards the pushing member 213, and has a disengaged position that disengages from the shearing member 212, so that the support member 214 allows the shearing member 212 to slide towards the pushing member 213. The pushing member 213 is configured to slide to contact the support member 214 and pivot the support member 214 to disengage from the engagement with the shearing member 212.

[0122] Further preferably, the pushing member 213 and the shearing member 212 slide along the same straight line, and the tension spring 233 is always in a stretched state, and the tension released by the tension spring 233 pulls the shearing member 212 and the pushing member 213 towards each other.

[0123] The pushing and shearing mechanism further includes a pushing locking member 215 arranged in the magazine body. When the pushing locking member 215 is in the initial position, it is connected to the pushing member 213, so that the pushing member 213 is locked and immovable.

[0124] The pushing locking member can be various locking function parts or structures such as a locking pin, a locking key, etc.

[0125] Preferably in this embodiment, as Figure 18As shown, the pushing locking member 215 has a hook portion 2151, and the hook portion 2151 is engaged with a clamping platform portion on the pushing member 213 to achieve limit locking. The pushing locking member 215 further has a release portion 2152. The shearing trigger rod 113 on the handle pushes the release portion 2152 to move the pushing locking member 215 left and right, so that the pushing member 213 is unlocked, and suture fixation and cutting are implemented.

[0126] In this embodiment, preferably, three manual push buttons are slidably arranged on the outer part of the magazine housing. The first manual push button 216 extends into the magazine housing and is fixedly connected to the puncture needle connecting member 208. The second manual push button 217 extends into the magazine housing and is fixedly connected to the shearing member 212. The third manual push button 218 extends into the magazine housing and is fixedly connected to the pushing member 213. In this way, when a jamming fault occurs in the internal structure of the magazine, the movement of the puncture needle connecting member, the pushing member, and the shearing member in the magazine can be controlled by moving the manual push buttons outside the magazine housing.

[0127] In this embodiment, preferably, a cover plate 202 is fixed on the magazine housing 201, and the two are fixedly connected through a snap structure. Three sliding grooves are formed on the cover plate 202, and the three manual push buttons move back and forth along the three sliding grooves respectively. The three manual push buttons are fixedly connected to the puncture needle connecting member, the shearing member, or the pushing member 213 through a snap structure respectively.

[0128] As Figure 2 shown, the handle 100 includes:

[0129] An energy storage slider 106 is arranged in the handle housing in a manner that it can slide back and forth and is connected to the puncture needle connecting member 208 in the magazine to move synchronously. The energy storage slider 106 is connected to the handle housing through an energy storage spring 119, so as to be given a tendency to move forward. The energy storage slider 106 is connected to the handle housing through a ratchet mechanism, so as to be restricted from moving forward. When the energy storage slider 106 moves backward in place, the ratchet mechanism fails, so that the energy storage slider 106 moves forward quickly under the action of the energy storage spring.

[0130] A trigger member 103 is arranged in the handle housing in a manner that it can slide back and forth. The trigger member 103 is given a tendency to move forward through a trigger spring 125. A sliding push block 104 that can slide up and down is arranged on the trigger member 103. The sliding push block 104 can be connected to or disengaged from the energy storage slider 106: when the sliding push block 104 is connected to the energy storage slider 106, the trigger member 103 can drive the energy storage slider 106 to move backward; when the trigger member 103 moves backward in place, the sliding push block 104 is disengaged from the energy storage slider 106, and the trigger member 103 cannot drive the energy storage slider 106 to move.

[0131] A locking member 111 is arranged in the handle housing in a manner that it can slide up and down. The locking member 111 has a locking position and an unlocking position: when the locking member 111 is in the locking position, the locking member 111 can limit the backward movement of the trigger member 103, and the ratchet mechanism of the energy storage slider 106 becomes effective to limit its forward movement; when the locking member 111 is in the unlocking position, the trigger member 103 can move backward, thereby causing the ratchet mechanism of the energy storage slider 106 to become ineffective, and the sliding push block 104 is disengaged from the energy storage slider 106.

[0132] In this way, by setting the locking member to cooperate with the trigger member to perform puncture, the risk of misoperation of the single trigger member firing is avoided, the operation is convenient, and the reliability is good.

[0133] Preferably in this embodiment, the handle housing includes a lower housing 101 and an upper housing 102 that are fixedly connected as a whole. A magazine bin for placing the magazine is provided on the upper housing 102. Chutes for the connecting columns 2082 on the puncture needle connecting member 208 to pass through are provided on both the upper housing 102 and the magazine housing. The connecting columns 2082 are in fit connection with the slots on the energy storage slider 106 to achieve synchronous movement of the puncture needle connecting member 208 and the energy storage slider 106.

[0134] An endoscope connecting member 122 and an endoscope locking member 123 are respectively arranged at the front and rear ends of the handle housing for connecting the endoscope.

[0135] Preferably in this embodiment, a locking push button seat 219 and a locking push button 220 are provided on the cover plate 202 of the magazine. The locking push button seat 219 is fixedly connected to or integrally formed with the cover plate 202. The locking push button 220 is installed on the cover plate 202 in a slidable manner. The locking push button seat 219 and the locking push button 220 are abutted against each other by a compression spring 229 so that the locking push button 220 is given an ejection tendency. When the locking push button ejects, it is fixedly connected to the magazine housing 201 through a buckle structure. In this way, when an external force is applied to the locking push button, the buckle structure of the locking push button retracts, and the magazine can be loaded into the magazine bin of the handle. When the external force applied to the locking push button is removed, the locking push button locks into the handle under the action of the compression spring, and at this time the magazine loading is completed, and the puncture needle connecting member and the energy storage slider are cooperatively fixed.

[0136] Preferably in this embodiment, the sliding push block 104 is connected to the trigger member 103 through a compression spring 117. In the natural state, the sliding push block 104 is in an ejected state under the thrust of the compression spring, so that it can be connected to the energy storage slider 106. In other embodiments, the sliding push block can also be connected to the trigger member through a tension spring or the like.

[0137] In this embodiment, a guide shaft 105 is fixed on the lower housing 101, the energy storage slider 106 is sleeved on the guide shaft 105 and can slide forward and backward along the guide shaft 105, and the energy storage spring 119 is a compression spring sleeved on the guide shaft 105. In other embodiments, the energy storage spring can also be a tension spring.

[0138] In this embodiment, the trigger component 103 slides forward and backward through the slides provided on the left and right sides and the slide grooves on the lower shell 101 and the upper shell 102. The trigger spring 125 is a tension spring, which is inserted into the through hole of the trigger component 103. The two ends of the tension spring are connected to the trigger component and the handle shell through connecting pins. In other embodiments, the trigger spring can also be a compression spring.

[0139] In this embodiment, the ratchet mechanism includes a retaining block 107, a locking slider 108 and a connecting rod 109. The retaining block 107 and the locking slider 108 are each slidably mounted on the energy storage slider 106. One end of the retaining block 107 is hinged to one end of the connecting rod 109, and the other end of the connecting rod 109 is hinged to one end of the locking slider 108. The other end of the locking slider 108 can be pushed out or retracted: when the locking slider 108 is pushed out, it can cooperate with the ratchet on the first limiter 1011 to limit the forward movement of the energy storage slider 106; when the locking slider 108 is retracted, the ratchet mechanism fails; the retaining block 107 is connected to the energy storage slider 106 through the retaining spring 118 so that the retaining block 107 gives the locking slider 108 a tendency to maintain the push-out or retracted state. In this way, the structure is simple and reasonable, the energy storage slider has high reliability in unidirectional stepping motion, and the release is convenient.

[0140] Further preferably, the retaining block 107 is mounted on the energy storage slider 106 in a manner that allows it to slide forward and backward, and the locking slider 108 is mounted on the energy storage slider 106 in a manner that allows it to slide up and down, and the lower end of the locking slider 108 can be pushed out or retracted. In other embodiments, the locking slider can also be pushed out from the top or left and right sides of the energy storage slider, and cooperate with the corresponding ratchet on the handle housing to achieve unidirectional stepping motion.

[0141] In this embodiment, in the initial state, the holding block 107 pushes the connecting rod 109 to pivot, pushing the locking slider 108 to move downward, so that the locking slider 108 is located at and maintained at the ejection position.

[0142] Further preferably, the retaining spring 118 is a compression spring, which is arranged in a slide groove on the handle housing for arranging the retaining block 107. In other embodiments, the retaining spring may also be a tension spring.

[0143] In this embodiment, preferably, the locking slider 108 and the connecting rod 109 are hinged by a hinge pin 110. One end of the hinge pin 110 extends into a chute 1022 on the handle housing. The chute 1022 is formed on the upper housing or the lower housing of the handle. The rear end of the chute 1022 is a lifting ramp. When the hinge pin 110 moves backward to this position, it is lifted, and the locking slider 108 remains in the retracted state. A descending ramp 2092 is provided at the front of the chute 1022. The descending ramp 2092 is formed on the stroke adjusting member 209. When the hinge pin 110 moves forward to this position, it is pressed down, and the locking slider 108 remains in the ejected state. In this embodiment, the chute 1022 is provided on the magazine chamber wall of the upper housing 102. Another chute 1021 is also formed on the magazine chamber wall of the upper housing 102 for a connecting post 2082 on the puncture needle connecting member 208 in the magazine to extend into the handle housing and be connected to the energy storage slider.

[0144] In this embodiment, preferably, when the trigger member 103 moves backward to the in-place position, the sliding push block 104 abuts against the ramped boss on the first limiting member 1011 and moves downward to disengage from the energy storage slider 106. The first limiting member 1011 is fixedly connected or integrally formed with the lower housing 101.

[0145] In this embodiment, preferably, the locking member 111 is connected to the lower housing 101 by a spring 124 so as to be given a tendency to move upward. A locking boss 1111 for restricting the backward movement of the trigger member 103 is provided on the locking member 111, and the locking boss 1111 protrudes forward; an unlocking pin 112 that can slide back and forth is installed on the locking member 111. The unlocking pin 112 is abutted by a compression spring 121 and protrudes forward against the locking member 111; when the unlocking pin 112 protrudes forward and is inserted into the limiting groove on the second limiting member 1012, the locking member 111 is in the locked position, and the locking boss 1111 can abut against the protruding portion at the rear end of the trigger member 103 to restrict the backward movement of the trigger member 103; when the unlocking pin 112 protrudes forward and abuts against the limiting protrusion on the second limiting member 1012, the locking member 111 is in the unlocked position, and the locking boss 1111 and the protruding portion at the rear end of the trigger member 103 are vertically misaligned so as not to restrict the backward movement of the trigger member 103; when the trigger member 103 continues to move backward to the in-place position, the protruding portion at the rear end of the trigger member 103 pushes the unlocking pin 112 back and retracts, and the locking member 111 moves upward under the action of the spring to reset to the locked position. The limiting groove and the limiting protrusion on the second limiting member 1012 are arranged vertically and are transitioned by a ramp between them. The second limiting member 1012 is fixedly connected or integrally formed with the lower housing 101. The spring 124 is a tension spring or a compression spring. In this way, unlocking is achieved by pressing the locking member, and re-locking is realized by firing the puncture with the trigger member and simultaneously pushing back the unlocking pin, avoiding the risk of misoperation of repeated punctures.

[0146] In this embodiment, the locking member 111 is located at the locking position in the initial state. A compression spring 121 and a circlip 120 are sleeved on the unlocking pin 112. The circlip 120 is engaged in the card slot of the unlocking pin 112. Both ends of the compression spring 121 abut against the locking member 111 and the circlip 120 respectively. In this way, the compression spring applies an outward thrust to the unlocking pin, so that the unlocking pin 112 is engaged in the limit groove on the second limiting member 1012, and the locking member 111 is kept at the locking position.

[0147] Preferably in this embodiment, a shearing trigger rod 113 and an elastic limiting member are further provided on the handle. The shearing trigger rod 113 is installed in the handle housing in a manner that it can slide up and down. The shearing trigger rod 113 is fixedly connected to a shearing push button 115 slidably arranged outside the handle housing. The elastic limiting member is used to lock the shearing trigger rod 113 to prevent it from moving up and down. When the trigger member 103 moves backward to the in-place position, it pushes against the elastic limiting member to unlock it, so that the shearing trigger rod 113 can move up and down. The shearing trigger rod 113 makes the push locking member 215 move left and right by pushing the release portion 2152 on the push locking member 215, so that the push member 213 is unlocked, and the push shearing mechanism clamps and cuts the suture. In this way, only after the trigger member moves backward to the in-place position can the push shearing mechanism act, ensuring that the distal anchor is released and the suture is tensioned before the suture is clamped and cut, avoiding the risk of surgical misoperation.

[0148] Further preferably, through holes for the shearing trigger rod 113 to pass through are provided on both the handle housing and the magazine housing. The upper part of the shearing trigger rod 113 is U-shaped. One end of its upper part passes through the through hole and extends into the magazine to unlock the push locking member 215, and the other end of its upper part cooperates with the locking member 111 for limiting: when the locking member 111 is in the unlocking position, the locking member 111 can limit the upward movement of the shearing trigger rod 113; when the locking member 111 is in the locking position, the shearing trigger rod 113 is not restricted. In this way, only when the locking member is locked can the push shearing mechanism act, avoiding the risk of surgical misoperation caused by the misoperation of the push shearing mechanism during puncture.

[0149] Further preferably, the shearing trigger rod 113 is installed in the chute formed by the upper housing 102 and the lower housing 101 and can slide up and down. It is connected to the shearing push button 115 through a snap structure. The elastic limiting member is an elastic stop bar 114. The elastic stop bar 114 is V-shaped. One end of the elastic stop bar 114 is fixed in the card slot of the lower housing 101, and the other end of the elastic stop bar 114 is inserted into the card slot on the shearing trigger rod 113. When the shearing trigger rod 113 is in the initial position, the elastic stop bar 114 contacts the boss of the lower housing 101, locking the shearing trigger rod 113 and preventing it from moving. When the trigger member 103 moves backward to the in-place position, the elastic stop bar 114 is compressed, and the other end of the elastic stop bar 114 exits from the card slot on the shearing trigger rod 113, and the shearing trigger rod 113 can move up and down.

[0150] The present invention also discloses an anchoring member conveying method, which adopts the above-mentioned anchoring member conveying system and includes the following steps:

[0151] 1) Apply an external force to the trigger member 103 for the first time. The trigger member 103 drives the energy storage slider 106 and the puncture needle connecting member 208 to move backward for energy storage.

[0152] 2) Press the locking member 111 to unlock.

[0153] 3) Continue to apply an external force to the trigger member 103. The energy storage slider 106 drives the puncture needle connecting member 208 to move forward to fire. The puncture needle 221 and the distal anchoring member 300 extend out of the head end member 222 at the distal end of the puncture needle tube 224. The locking member 111 resets, and the external force applied to the trigger member 103 is removed to make it reset.

[0154] 4) Apply an external force to the trigger member 103 again. The trigger member 103 drives the energy storage slider 106 and the puncture needle connecting member 208 to move backward to retract the puncture needle 221 and tighten the suture.

[0155] 5) Push the cutting push button 115 to unlock the pushing member 213. The pushing member 213 is pulled towards the cutting member 212, and the proximal anchoring member is pushed out of the head end member 222 at the distal end of the puncture needle tube 224. The pushing member 213 is limited by the support member 214. Unlock the cutting member 212, and the cutting member 212 is pulled towards the pushing member 213, driving the cutting rod and the blade to cut the suture.

[0156] The specific movement cooperation process of the above-mentioned anchoring member conveying system for this method is described as follows:

[0157] Apply an external force to the locking push button. At this time, the buckle structure of the locking push button retracts, and the magazine can be loaded into the handle magazine chamber. Remove the external force applied to the locking push button. The locking push button locks into the handle under the action of the compression spring. At this time, the magazine loading is completed, and the puncture needle connecting member 208 is fixed to the energy storage slider 106, as Figure 6 shown.

[0158] Rotate the stroke adjustment cap 204 to drive the threaded rod 205 to rotate. At this time, the stroke adjustment member 209 can move back and forth according to the rotation of the threaded rod 205, and drive the stroke scale lead screw to move at the same time. After confirming the position of the stroke scale lead screw, stop rotating the stroke adjustment cap 204, as Figure 9 shown.

[0159] As Figure 10As shown, when an external force is applied to the trigger member 103, it slides backward along the chute from the initial state of the first position, driving the sliding push block 104 into contact with the energy storage slider 106, and driving the energy storage slider 106 to move backward simultaneously until the trigger member 103 comes into contact with the locking member 111. At this time, the trigger member 103 is limited by the locking member 111 and cannot slide backward any further, as Figure 11 shown. At the same time, the locking slider 108 engages with the ratchet structure in the lower housing 101. At this time, the energy storage slider 106 is located at the second position, and the compression spring has completed storing mechanical energy. At this time, the external force applied to the trigger member 103 is removed, and under the pulling force of the tension spring, the trigger member 103 returns to the first position.

[0160] As Figure 12 shown, when a downward pressure is applied to the locking member 111, the locking member 111 slides downward, and the unlocking pin 112 is compressed until it continues to slide downward to the unlocking position. The compression spring drives the unlocking pin 112 to pop out and engage with the limiting protrusion on the second limiting member 1012 to fix the locking member 111, completing the unlocking of the trigger member 103, as Figure 13 shown. When an external force is applied to the trigger member 103 again, the trigger member 103 moves backward from the first position again. When the sliding push block 104 comes into contact with the energy storage slider 106 again, it can drive the energy storage slider 106 to continue sliding backward. The trigger member 103 continues to slide backward until it contacts the unlocking pin 112 and continues to move, compressing the unlocking pin 112 until the sliding push block 104 contacts the trapezoidal boss (ramp boss) on the first limiting member. During the backward sliding process, the trapezoidal boss forms a downward pressure on the sliding push block 104, pressing the sliding push block 104 to the second position. At this time, the sliding push block 104 is disengaged from the energy storage slider 106, as Figure 14 shown. At the same time, the locking slider 108 is lifted upward by the lifting ramp of the chute 1022 on the handle housing and remains in the second position (retracted state), as Figure 15 shown. At this time, the locking slider 108 is unlocked from the ratchet structure on the first limiting member, and the energy storage slider 106 loses all locks. Then, under the action of the compression spring, it slides forward rapidly, driving the puncture needle connecting member 208 to slide forward. The puncture needle connecting member 208 drives the suture fixing seat 211 and the guide rod 210 to slide forward until the puncture needle connecting member 208 contacts the buffer pin 206 and drives it to continue sliding forward. The buffer pin 206 drives the in-place reminder cap 203 to slide forward until the buffer pin 206 contacts the stroke adjusting member 209, as Figure 22As shown, the puncture is completed. At this time, the in-place prompt cap 203 pops out completely, indicating that the puncture is in place. The energy storage slider 106, the puncture needle connecting piece 208, the suture fixing seat 211, and the guide rod 210 all stop sliding and are located at the second position. When the locking slider 108 slides forward to the in-place position, it is pushed downward under the action of the descending slope of the chute 1022 on the handle housing, returns to and remains in the first position, as Figure 16 shown. Remove the external force applied to the trigger part 103. Under the action of the tension spring, the trigger part 103 returns to the first position again, and the unlocking pin 112 is compressed within the locking part 111, losing the binding force on the locking part 111. Under the action of the compression spring, the locking part 111 slides upward, and the unlocking pin 112 pops out again under the action of the compression spring and is fixed within the limit groove of the lower housing 101. The locking part 111 returns to the first position (locking position) again, forming a lock on the trigger part 103.

[0161] Apply an external force to the trigger part 103 again. The trigger part 103 slides backward, and the sliding push block 104 drives the energy storage slider 106 to move backward again. The energy storage slider 106 drives the puncture needle connecting piece 208 to slide backward, and the puncture needle connecting piece 208 drives the suture fixing seat 211 and the guide rod 210 to slide backward. Among them, as Figure 17 shown, when the card slot of the guide rod 210 moves to engage with the hook of the stroke adjustment part 209, the guide rod 210 and the suture fixing seat 211 stop moving backward. At this time, the puncture needle connecting piece 208 continues to retract, completing the release of the distal anchor, until the trapezoidal boss 2081 on the puncture needle connecting piece 208 lifts the hook of the stroke adjustment part 209, releasing the guide rod 210 to continue sliding backward and tightening the suture. At this time, the puncture needle is completely retracted, and the distal anchor is completely released, as Figure 23 shown.

[0162] As Figure 18 and Figure 19 shown, in the initial state, the pushing lock 215 is connected to the pushing part 213, making the pushing part 213 locked and immovable. When the trigger part 103 moves backward, the elastic stop bar 114 is squeezed into the card slot of the lower housing 101 while unlocking the cutting trigger rod 113. Continuously apply an external force to the trigger part 103, and at the same time apply an upward thrust to the cutting push button 115, which drives the cutting trigger rod 113 to move upward from the first position to the second position until the cutting trigger rod 113 contacts and pushes away the pushing lock 215, causing it to slide laterally until the hook part of the pushing lock 215 disengages from the pushing part 213, as Figure 20 shown. At this time, the tension spring 233 pulls the pushing part 213 towards the cutting part 212, pushing the proximal anchor forward until the pushing part 213 collides with the support part 214, causing the support part 214 to pivot to unlock the cutting part 212, asFigure 21 As shown, under the action of the tension spring, the shearing component 212 slides in the direction of the pushing component 213, driving the shearing rod to complete shearing. If structural jamming occurs during this process, resulting in the failure to smoothly complete the action, manual operation can be performed by manually pushing and twisting. After removing the thrust on the cutting push button 115, it resets to the first position under the action of the compression spring. After removing the external force on the trigger component 103, it returns to the first position again under the action of the tension spring. At this time, the energy storage slider 106 remains in the second position under the action of the locking slider 108, maintaining the energy storage state. The elastic stop 114 loses the external force and returns to its original state, continuing to lock the cutting trigger rod 113.

[0163] After that, replace the magazine. Each component of the handle has been reset, and the energy storage slider 106 is in the energy storage position. After loading a new magazine, the next round of puncture action can be directly performed. The schematic diagram of the completion of the prostate suspension operation is as Figure 24 shown.

[0164] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "one implementation manner", "specific implementation manner", "other implementation manners", "example", "specific example", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment, implementation manner, or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described above can also be combined in a suitable manner in any one or more embodiments, implementation manners, or examples. The technical solutions described in the present invention also include the technical solutions formed by any one or more of the above-described specific features, structures, materials, or characteristics alone or in combination.

[0165] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, variations, delete some features, add features, or re-combine features within the scope of the present invention without departing from the principles and purposes of the present invention. Any simple modification, equivalent change, and modification made to the above embodiments based on the innovative principles of the present invention still fall within the scope of the technical solutions of the present invention.

Claims

1. A magazine for an anchor conveying system, characterized in that, Comprising: A puncture needle tube (224), within which a puncture needle (221) capable of moving back and forth is inserted, and within the puncture needle (221), a suture (500) capable of moving back and forth is inserted. The proximal end of the puncture needle tube (224) is fixedly connected to the front end of the magazine housing; A push-pull tube (225), within which a shearing rod (228) and a pushing rod (227) capable of moving back and forth are inserted. The proximal end of the push-pull tube (225) is fixedly connected to the front end of the magazine housing; A puncture needle connector (208), which is installed in the magazine housing in a manner capable of sliding back and forth. The front part of the puncture needle connector (208) is fixedly connected to the proximal end of the puncture needle (221); A pushing and shearing mechanism for driving the pushing rod (227) to push the proximal anchor (400) to clamp and fix the suture and for driving the shearing rod (228) to drive the blade (223) to cut the suture; A stroke adjustment mechanism, which is installed in the magazine housing and is used to block the forward movement of the puncture needle connector (208) so as to control the puncture length; Wherein, the stroke adjustment mechanism includes a stroke adjustment member (209), and the stroke adjustment member (209) is threadedly connected to the magazine housing through a threaded rod (205); the stroke adjustment member (209) is located in the chute of the magazine housing and can slide back and forth. The stroke adjustment member (209) is connected to a stroke adjustment cap (204) outside the magazine housing through the threaded rod (205). The threaded rod (205) is threadedly connected to the magazine housing. The stroke adjustment member (209) is sleeved on the rear end of the threaded rod (205). The stroke adjustment cap (204) is installed at the front end of the threaded rod (205) and can rotate the threaded rod (205). When the stroke adjustment cap (204) rotates, it drives the threaded rod (205) to rotate, thereby controlling the forward and backward movement of the stroke adjustment member (209); the stroke adjustment mechanism further includes a buffer pin (206). The threaded rod (205) is a hollow rod with a central hole. The threaded rod (205) is sleeved on the buffer pin (206). The rear end of the buffer pin (206) extends out of the threaded rod (205) and is given a buffer tendency by a spring. The buffer pin (206) can slide back and forth within the stroke adjustment member (209) and can abut against and limit the puncture needle connector (208); The stroke adjustment mechanism further includes a position indication cap (203). The front end of the buffer pin (206) extends out of the threaded rod (205) and the stroke adjustment cap (204) and is fixedly connected to the position indication cap (203); The proximal end of the suture (500) is fixedly connected to the suture fixing seat (211). The suture fixing seat (211) is installed in the inner cavity of the puncture needle connector (208). A guide rod (210) passes through the inner cavity of the puncture needle connector (208) and can slide back and forth together with the suture fixing seat (211). A spring (232) for imparting a backward movement tendency to the suture fixing seat (211) is sleeved on the guide rod (210). A hook (2091) is provided on the stroke adjusting member (209), and the hook (2091) can cooperate with a groove (2101) provided on the guide rod (210) to limit the backward movement of the guide rod (210). The suture fixing seat (211) is sleeved on the guide rod (210). One end of the spring (232) abuts against the suture fixing seat (211) and the guide rod (210), and the other end of the spring (232) abuts against the puncture needle connector (208).

2. The magazine for an anchor delivery system according to claim 1, wherein the stroke adjusting mechanism further includes a stroke scale rod (207). The front end of the stroke scale rod (207) is axially fixed to the front part of the threaded rod (205) and can rotate relatively. The rear end of the stroke scale rod (207) passes through a through hole provided at the front end of the magazine housing and is connected to a stroke adjusting member (209) inside the magazine housing. Scale marks corresponding to each puncture length are provided on the stroke scale rod (207); the stroke scale rod (207) is formed by bending a metal rod. Its front end is bent into an annular loop sleeved on the front part of the threaded rod (205). A flange on the threaded rod (205) cooperates with the stroke adjusting cap (204) to clamp and position the front annular loop of the stroke scale rod (207); the pushing and shearing mechanism includes a shearing member (212) and a pushing member (213). The shearing member (212) is installed in the magazine housing in a manner that can slide back and forth. The shearing member (212) pulls the blade (223) backward through a shearing rod (228) to complete the action of cutting the suture. The pushing member (213) is installed in the magazine housing in a manner that can slide back and forth. The pushing member (213) pushes the proximal anchor (400) forward through a pushing rod (227).

Images