Anchor conveying system, anchor conveying method and magazine

Abstract

The invention discloses an anchoring part conveying system and method and a magazine thereof, the magazine comprises a puncture needle tube, a push-pull tube, a puncture needle connecting piece, a shearing component, a pushing component and a supporting piece, the supporting piece is installed between the shearing component and the pushing component, and the front end and the rear end of the supporting piece can move and have two position states; the limiting component limits backward movement of the shearing component and does not limit the pushing component; when the supporting piece is located at the second position, the supporting piece limits forward movement of the pushing component and does not limit the shearing component. Therefore, the structure is more reasonable and simple in action, easy and convenient to operate, not prone to errors and better in reliability.

Description

[0001] This application is a divisional application of the following application

[0002] with the application number: 202311322375.5

[0003] and the application date: October 12, 2023. The application title is: Anchor Delivery System and Its Method, Handle and Magazine

[0004] and is a divisional application thereof. Technical Field

[0005] The present invention belongs to the technical field of medical devices, and particularly relates to an anchor delivery system and its method, and a magazine. Background Art

[0006] Benign prostatic hyperplasia (BPH) is one of the most common medical conditions affecting men, especially elderly men. The prostate gland enlarges throughout a person's life. In some men, the prostatic capsule surrounding the prostate may prevent further enlargement of the prostate, which causes the internal area of the prostate to compress the urethra, and this increased pressure on the urethra increases the resistance to urine flow through the urethral area surrounded by the prostate. Therefore, the bladder must exert greater pressure to force urine through the increased urethral resistance. Chronic overexertion can cause the muscular wall of the bladder to remodel and become stiffer. This increased urethral resistance, increased urinary stream hardness, and bladder wall hypertrophy can lead to various lower urinary tract symptoms (LUTS), which can seriously reduce the quality of life of patients. These symptoms include weak or intermittent urinary stream during urination, straining during urination, hesitation before the start of urination, feeling that the bladder is not completely emptied even after urination, dribbling or leakage of urine at the end of urination, especially increased frequency of urination at night, and urinary urgency. In addition to patients with BPH, LUTS may also be present in patients with prostate cancer, prostate infection, and long-term use of certain drugs (such as ephedrine, pseudoephedrine, phenylpropanolamine, antihistamines such as diphenhydramine, chlorpheniramine, etc.), which can cause urinary retention. Although BPH rarely endangers life, it can lead to many clinical conditions, including urinary retention, renal insufficiency, recurrent urinary tract infections, incontinence, hematuria, and bladder stones.

[0007] Currently, the available treatment options for 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 surgical procedures for treating BPH symptoms include transurethral microwave thermotherapy (TUMT), transurethral needle ablation (TUNA), interstitial laser coagulation (ILC), and prostate stents.

[0008] 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 that require 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 get immediate relief and actually usually experience more severe symptoms for several weeks after the surgery until the body begins to heal. In addition, many device methods require the placement of a catheter in the bladder, which in some cases takes several weeks. In some cases, catheterization is required because the treatment actually causes obstruction for some time after the surgery, and in other cases, catheterization is required due to bleeding and potential occlusive clot formation after the 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.

[0009] 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:

[0010] 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.

[0011] 2. The structure is complex and the operation steps are numerous, which easily leads to misoperation by doctors.

[0012] 3. There is no convenient instrument reset function set. When the structure jams and fails, the internal structure cannot be conveniently reset, increasing the surgical risk. Summary of the Invention

[0013] In order to solve the above technical problems, one of the purposes of the present invention is to provide an anchor delivery system and its magazine, whose structural movement is more reasonable and simple, the operation is simple and not easy to make mistakes, and the reliability is better.

[0014] Another purpose of the present invention is to provide an anchor delivery method for the above anchor delivery system.

[0015] In order to achieve the above purposes, the present invention adopts the following technical solutions:

[0016] 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 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 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 shearing 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 pushing 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 simple and not prone to errors, and the reliability is better.

[0017] Preferably, the middle part of the support member is hinged to the magazine body through a hinge pin.

[0018] Preferably, a limiting post is provided below the front end of the support member.

[0019] Preferably, the rear end of the support member includes a first limiting end and a second limiting end. The two limiting ends are in a V shape. The first limiting end always blocks in front of the pushing component. When the pushing component moves forward, it can push the support member to swing and implement limitation.

[0020] 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.

[0021] Preferably, a pushing locking member is further provided in the magazine body. When the pushing locking member is in the initial position, it is connected to the pushing component, so that the pushing component is locked and cannot move. Such a locking structure is provided to facilitate surgical operation and reduce the risk of surgical misoperation.

[0022] Preferably, the pushing locking member has a hook portion, and the hook portion cooperates with a clamping table portion on the pushing component to achieve limit locking.

[0023] Preferably, the pushing locking member has a release portion, and the shearing trigger rod on the handle realizes the left - right movement of the pushing locking member by pushing the release portion, thereby unlocking the pushing member.

[0024] An anchoring member conveying system includes a handle and a magazine, and the magazine is a magazine for an anchoring member conveying system as described above.

[0025] An anchoring member conveying method uses an anchoring member conveying system as described above.

[0026] Due to the adoption of the above - mentioned technical solutions, the structure and operation of the instrument are more reasonable and simple, the operation is convenient and not prone to errors, and the reliability is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation to this application.

[0028] Figure 1 It is a schematic structural diagram of the anchoring member conveying system of the present invention;

[0029] Figure 2 It is an exploded view of the handle of the present invention;

[0030] Figure 3 It is an exploded view of the magazine of the present invention;

[0031] Figure 4 It is one of the schematic structural diagrams of the puncture needle and the puncture needle connecting member in the magazine of the present invention.

[0032] Figure 5 It is the second schematic structural diagram of the puncture needle and the puncture needle connecting member in the magazine of the present invention.

[0033] Figure 6 It is a schematic cooperation structural diagram of the puncture needle connecting member and the energy - storage slider of the present invention.

[0034] Figure 7 It is a schematic structural diagram of the head assembly of the magazine of the present invention.

[0035] Figure 8 It is a schematic structural diagram of the head assembly of the magazine and the pushing and shearing mechanism of the present invention.

[0036] Figure 9 It is a schematic internal structural diagram of the magazine of the present invention.

[0037] Figure 10 It is a schematic diagram of the positions of the components in the handle of the present invention (initial state, first position).

[0038] Figure 11Schematic diagram of the positions of various components inside the handle of the present invention (the handle completes energy storage after the trigger is pressed for the first time).

[0039] Figure 12 Schematic diagram of the operation of the locking member inside the handle of the present invention (when the locking member is pressed downward, the unlocking pin moves).

[0040] Figure 13 Schematic diagram of the operation of the locking member inside the handle of the present invention (the locking member completes unlocking).

[0041] Figure 14 Schematic diagram of the positions of various components inside the handle of the present invention (after the trigger is pressed for the second time, ready to release the puncture needle).

[0042] 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).

[0043] Figure 16 Schematic diagram of the dropping of the locking slider inside the handle of the present invention (the release of the puncture needle is completed).

[0044] Figure 17 Schematic diagram of the travel adjustment block in the magazine of the present invention limiting the guide rod.

[0045] Figure 18 Schematic diagram of the pushing member in the magazine of the present invention being limited by the push locking member.

[0046] Figure 19 Schematic diagram of the operation of the pushing and cutting mechanism of the present invention (initial state, first position).

[0047] Figure 20 Schematic diagram of the operation of the pushing and cutting mechanism of the present invention (releasing the proximal anchor).

[0048] Figure 21 Schematic diagram of the operation of the pushing and cutting mechanism of the present invention (cutting the suture).

[0049] Figure 22 Schematic diagram of the puncture of tissue after the puncture needle is released.

[0050] Figure 23 Schematic diagram of the release of the distal anchor after the puncture needle is retracted.

[0051] Figure 24 Schematic diagram of the proximal anchor and the distal anchor fixed in the tissue. Detailed implementation manners

[0052] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0053] 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.

[0054] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying 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 by referring to the drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0055] In the description of the present invention, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of the features, steps, operations, devices, components, and / or combinations thereof.

[0056] In the description of the present invention, it should be understood that the terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0057] 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 stated, the meaning of "plurality" is two or more, unless otherwise clearly defined.

[0058] In the present invention, unless otherwise clearly specified and defined, the terms such as "mounted", "connected", "connected to", "fixed" and the like 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.

[0059] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0060] For the sake of convenience of description, in the present invention, Figure 1 the left side is the front, the right side is the rear, the upper side is the top, the lower side is the bottom, and the other two sides in the vertical front-rear direction are divided into left and right. The surgical end of the instrument is the distal end, and the operating end of the instrument is the proximal end.

[0061] Example 1:

[0062] As Figure 1 shown, an anchoring element delivery system includes a handle 100 and a magazine 200. The magazine 200 is detachably and replaceably mounted on the handle 100, and the handle 100 transfers the mechanical energy stored therein to the inside of the magazine 200 to deliver an implant into a patient's body.

[0063] As Figure 3 shown, the magazine 200 includes:

[0064] a puncture needle tube 224, in which a puncture needle 221 capable of moving back and forth is disposed. 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 member 222;

[0065] a push-pull tube 225, in which a shearing rod 228 and a pushing rod 227 capable of moving back and forth are disposed. The proximal end of the push-pull tube 225 is fixedly connected to the front end of the magazine housing, and a proximal anchoring element 400 capable of moving back and forth and disengaging is disposed in the distal opening of the push-pull tube 225. The distal end of the push-pull tube 225 is fixedly connected to the head end member 222;

[0066] a puncture needle connecting member 208, the front part of which is fixedly connected to the proximal end of the puncture needle 221. A suture 500 capable of moving back and forth is disposed in the puncture needle 221. The proximal end of the suture 500 is fixedly connected to a suture fixing seat 211, and the suture fixing seat 211 is mounted on the puncture needle connecting member 208 in a slidable manner back and forth. The distal end of the suture 500 is fixedly connected to a distal anchoring element 300;

[0067] A shearing component 212, which is installed in the magazine body in a manner that it can slide back and forth. The shearing component 212 is fixedly connected to the proximal end of the shearing rod 228. The distal end of the shearing rod 228 is connected to the blade 223. The shearing rod 228 drives the blade 223 to move backward under the drive of the shearing component 212 to complete the shearing action.

[0068] A pushing component 213, which is installed in the magazine body in a manner that it can slide back and forth. The pushing component 213 is fixedly connected to the proximal end of the pushing rod 227. The pushing rod 227 drives the proximal end anchor 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.

[0069] A support component 214, which is installed between the shearing component 212 and the pushing component 213. The front and back ends of the support component 214 can move and have two position states: when the support component 214 is in the first position, its front end limits the backward movement of the shearing component 212, and its rear end does not limit the pushing component 213; when the support component 214 is in the second position, its rear end limits the forward movement of the pushing component 213, and its front end does not limit the shearing component 212.

[0070] 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 component 222, so that after the puncture needle 221 is bent, it can extend out from one side for puncture.

[0071] Preferably in this embodiment, it further includes a stroke adjustment mechanism installed in the magazine body for blocking the forward movement of the puncture needle connector 208 to control the puncture length.

[0072] Preferably in this embodiment, as Figure 9 and Figure 16 shown, the stroke adjustment mechanism includes a stroke adjustment part 209. The stroke adjustment part 209 is located in the chute of the magazine body and can slide back and forth. The stroke adjustment part 209 is connected to the stroke adjustment cap 204 outside the magazine body through a threaded rod 205. The threaded rod 205 is threadedly connected to the magazine body. The stroke adjustment part 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 part 209 along the threaded rod 205. In this way, by rotating the threaded rod, the blocking position of the stroke adjustment part on the puncture needle connector can be adjusted to realize the adjustment of the puncture length. The structure is simple and the adjustment is convenient.

[0073] Further preferably, the stroke adjustment mechanism further includes a buffer pin 206 and a position - in - place prompt 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 prompt 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 the limit 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 prompt cap. The buffer pin can not only buffer and limit the puncture needle connecting member, but also facilitate the doctor to quickly judge whether the puncture is successful through the position - in - place prompt cap.

[0074] 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 the 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.

[0075] In this embodiment, the stroke scale rod 207 is bent from a metal rod. Its front end is bent into a ring and sleeved on the front part of the threaded rod 205. The flange on the threaded rod 205 and the stroke adjustment cap 204 cooperate to clamp and position the front - end ring of the stroke scale rod 207.

[0076] This embodiment preferably, as Figure 4 and Figure 5As shown, 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. 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. 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. In this way, after the puncture needle releases and completes the puncture, by restricting the backward movement of the guide rod and the suture fixing seat together with the puncture needle connector through the hook, it can ensure that the distal anchor can be released from the distal end of the puncture needle; by providing a spring, the suture can be effectively tensioned to facilitate the release of the proximal anchor.

[0077] In this embodiment, the proximal end of the suture 500 is connected with a suture support tube 231 to facilitate the pushing and pulling movement of the suture and its connection with the suture fixing seat. The suture support tube is fixed on the suture fixing seat, and the suture is press-connected and fixed with the suture support tube.

[0078] 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.

[0079] This embodiment preferably, 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 limiting post 2144 is provided below the front end 2141 of the support member 214. In this way, it 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 limiting end 2142 and a second limiting end 2143. The two limiting ends are in a V shape. The first limiting 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.

[0080] In this embodiment, the support member 214 has an engaging position engaged 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 disengaged 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.

[0081] 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. The pulling force released by the tension spring 233 pulls the shearing member 212 and the pushing member 213 towards each other.

[0082] The pushing and shearing mechanism further includes a pushing locking member 215 disposed in the magazine housing. 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.

[0083] The pushing locking member can be various components or structures with locking functions such as a locking pin, a locking key, etc.

[0084] Preferably in this embodiment, as Figure 18 shown, the pushing locking member 215 has a hook portion 2151, and the hook portion 2151 cooperates with a clamping table portion on the pushing member 213 to achieve limit locking. The pushing locking member 215 further has a release portion 2152. The cutting 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 the suture is fixed and cut.

[0085] Preferably in this embodiment, three manual push buttons are slidably disposed outside 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 failure 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.

[0086] Preferably in this embodiment, a cover plate 202 is fixed on the magazine housing 201, and the two are fixedly connected by 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 snap structures respectively.

[0087] As Figure 2 shown, the handle 100 includes:

[0088] An energy storage slider 106 is arranged in the handle housing in a manner that allows it to slide back and forth and is connected to the puncture needle connecting piece 208 in the magazine for synchronous movement. The energy storage slider 106 is connected to the handle housing through an energy storage spring 119, thereby being given a tendency to move forward. The energy storage slider 106 is connected to the handle housing through a ratchet mechanism and is thus restricted from moving forward. When the energy storage slider 106 moves backward in place, the ratchet mechanism fails, and thus the energy storage slider 106 quickly moves forward under the action of the energy storage spring.

[0089] A trigger component 103 is arranged in the handle housing in a manner that allows it to slide back and forth. The trigger component 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 component 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 component 103 can drive the energy storage slider 106 to move backward; when the trigger component 103 moves backward in place, the sliding push block 104 is disengaged from the energy storage slider 106, and the trigger component 103 cannot drive the energy storage slider 106 to move.

[0090] A locking piece 111 is arranged in the handle housing in a manner that allows it to slide up and down. The locking piece 111 has a locking position and an unlocking position: when the locking piece 111 is in the locking position, the locking piece 111 can restrict the trigger component 103 from moving backward, and the ratchet mechanism of the energy storage slider 106 is effective to restrict its forward movement; when the locking piece 111 is in the unlocking position, the trigger component 103 can move backward, thereby causing the ratchet mechanism of the energy storage slider 106 to fail, and the sliding push block 104 to be disengaged from the energy storage slider 106.

[0091] In this way, by setting the locking piece to cooperate with the trigger component to perform puncture, the risk of misoperation of a single trigger component firing is avoided, the operation is convenient, and the reliability is good.

[0092] 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 arranged on the upper housing 102. Chutes for allowing the connecting column 2082 on the puncture needle connecting piece 208 to pass through are opened on both the upper housing 102 and the magazine housing. The connecting column 2082 is in mating connection with the slot on the energy storage slider 106 to achieve synchronous movement of the puncture needle connecting piece 208 and the energy storage slider 106.

[0093] Endoscope connectors 122 and endoscope locking pieces 123 are respectively arranged at the front and rear ends of the handle housing for connecting the endoscope.

[0094] In this embodiment, the cover plate 202 of the magazine is preferably provided with a locking button seat 219 and a locking button 220, the locking button seat 219 is fixedly connected or integrally formed with the cover plate 202, the locking button 220 is slidably mounted on the cover plate 202, the locking button seat 219 and the locking button 220 are abutted against each other by a compression spring 229 so that the locking button 220 is given a tendency to be ejected, and the locking button is fixedly connected to the magazine body 201 by a buckle structure when it is ejected. In this way, when an external force is applied to the locking button, the buckle structure of the locking button is retracted, and the magazine can be loaded into the magazine compartment of the handle, and the external force applied to the locking button is removed, and the locking button is locked into the handle under the action of the compression spring, at which time the magazine loading is completed, and the puncture needle connector is fixed with the energy storage slider.

[0095] In this embodiment, the sliding push block 104 is preferably connected to the trigger component 103 via a compression spring 117. In a 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 component via a tension spring or the like.

[0096] 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.

[0097] 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.

[0098] 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.

[0099] Further preferably, the holding block 107 is mounted on the energy storage slider 106 in a manner that allows it to slide back and forth, and the locking slider 108 is mounted on the energy storage slider 106 in a manner that allows it to slide up and down. The lower end of the locking slider 108 can be ejected or retracted. In other embodiments, the locking slider can also be ejected from above or from the left and right sides of the energy storage slider and cooperate with corresponding ratchets on the handle housing to achieve unidirectional stepping movement.

[0100] In this embodiment, in the initial state, the holding block 107 pushes the connecting rod 109 to pivot, pushing the locking slider 108 downward so that the locking slider 108 is located and held in the ejected position.

[0101] Further preferably, the holding spring 118 is a compression spring, and this compression spring is arranged in the chute on the handle housing for arranging the holding block 107. In other embodiments, the holding spring can also be a tension spring.

[0102] 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 the chute 1022 on the handle housing. The chute 1022 is opened 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. The front part of the chute 1022 is provided with a descending ramp 2092, and this 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 arranged on the magazine chamber wall of the upper housing 102. The magazine chamber wall of the upper housing 102 is also provided with another chute 1021 for the connecting column 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.

[0103] 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.

[0104] Preferably in this embodiment, the locking member 111 is connected to the lower housing 101 through a spring 124 so as to be given a tendency to move upward. A locking boss 1111 for restricting the trigger member 103 from moving backward is provided on the locking member 111, and the locking boss 1111 protrudes forward; an unlocking pin 112 capable of sliding back and forth is installed on the locking member 111, and the unlocking pin 112 is pushed forward by a compression spring 121 against the locking member 111; when the unlocking pin 112 is pushed forward and 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 trigger member 103 from moving backward; when the unlocking pin 112 is pushed 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 displaced so as not to restrict the trigger member 103 from moving backward; when the trigger member 103 continues to move backward in place, the protruding portion at the rear end of the trigger member 103 pushes the unlocking pin 112 to retract, 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 slope therebetween. The second limiting member 1012 is fixedly connected to 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 piercing is performed by the trigger member while pushing back the unlocking pin to achieve re-locking, avoiding the risk of misoperation of re-piercing.

[0105] In this embodiment, the locking member 111 is in the locked position in the initial state. A compression spring 121 and a snap spring 120 are sleeved on the unlocking pin 112. The snap spring 120 is engaged in the card slot of the unlocking pin 112, and both ends of the compression spring 121 abut against the locking member 111 and the snap spring 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 limiting groove on the second limiting member 1012, and the locking member 111 is kept in the locked position.

[0106] In this embodiment, preferably, a cutting trigger rod 113 and an elastic limiting member are further provided on the handle. The cutting trigger rod 113 is installed in the handle housing in a manner that enables it to slide up and down. The cutting trigger rod 113 is fixedly connected to a cutting push button 115 that is slidably arranged outside the handle housing. The elastic limiting member is used to lock the cutting 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 cutting trigger rod 113 can move up and down. The cutting trigger rod 113 enables the push-lock member 215 to move left and right by pushing the release portion 2152 on the push-lock member 215, thereby unlocking the push member 213, and the push-cutting mechanism clamps and cuts the suture. In this way, the push-cutting mechanism can only operate after the trigger member has moved backward to the in-place position, 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.

[0107] Further preferably, through holes through which the cutting trigger rod 113 can pass are provided on both the handle housing and the magazine housing. The upper part of the cutting 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-lock 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 unlocked position, the locking member 111 can limit the upward movement of the cutting trigger rod 113; when the locking member 111 is in the locked position, the cutting trigger rod 113 is not restricted. In this way, the push-cutting mechanism can only operate when the locking member is locked, avoiding the risk of surgical misoperation caused by the accidental operation of the push-cutting mechanism during puncture.

[0108] Further preferably, the cutting trigger rod 113 is installed in a chute formed by the upper housing 102 and the lower housing 101 and can slide up and down. It is connected to the cutting 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 a card slot of the lower housing 101, and the other end of the elastic stop bar 114 is inserted into a card slot on the cutting trigger rod 113. When the cutting trigger rod 113 is in the initial position, the elastic stop bar 114 contacts the boss of the lower housing 101, locking the cutting 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 cutting trigger rod 113, and the cutting trigger rod 113 can move up and down.

[0109] The present invention also discloses an anchor delivery method. Using the above-mentioned anchor delivery system, it includes the following steps:

[0110] 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 to store energy;

[0111] 2) Press the locking member 111 to unlock;

[0112] 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 for firing. The puncture needle 221 and the distal anchor 300 extend out of the head 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 reset it.

[0113] 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.

[0114] 5) Push the cutting release button 115 to unlock the pushing member 213. The pushing member 213 is pulled towards the cutting member 212, and the proximal anchor is pushed out of the head member 222 at the distal end of the puncture needle tube 224. The pushing member 213 is limited by the support member 214, and the cutting member 212 is unlocked. The cutting member 212 is pulled towards the pushing member 213, driving the cutting rod and the blade to cut the suture.

[0115] The specific movement cooperation process of this method using the above-mentioned anchor delivery system is described as follows:

[0116] Apply an external force to the locking button. At this time, the buckle structure of the locking button retracts, and the magazine can be loaded into the handle magazine chamber. Remove the external force applied to the locking button. The locking button is locked 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.

[0117] Rotate the stroke adjustment cap 204 to drive the threaded rod 205 to rotate. At this time, the stroke adjustment member 209 can move forward and backward according to the rotation of the threaded rod 205, and drive the stroke scale screw rod to move simultaneously. After confirming the position of the stroke scale screw rod, stop rotating the stroke adjustment cap 204, as Figure 9 shown.

[0118] As Figure 10 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, drives the sliding push block 104 to contact the energy storage slider 106, and drives the energy storage slider 106 to move backward simultaneously until the trigger member 103 contacts the locking member 111. At this time, the trigger member 103 is limited by the locking member 111 and cannot slide backward continuously, 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 completes the accumulation of 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 resets to the first position.

[0119] As Figure 12As shown, 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 component 103, as Figure 13 shown. An external force is applied to the trigger component 103 again. The trigger component 103 moves backward from the first position again. When the sliding push block 104 contacts the energy storage slider 106 again, it can drive the energy storage slider 106 to continue sliding backward. The trigger component 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 and drives the puncture needle connecting piece 208 to slide forward. The puncture needle connecting piece 208 drives the suture fixing seat 211 and the guide rod 210 to slide forward until the puncture needle connecting piece 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 22 shown. The puncture is completed. At this time, the in-place reminder 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 in the second position. When the locking slider 108 slides forward to the in-place position, it is pushed downward by the descending ramp of the chute 1022 on the handle housing and returns to and remains in the first position, as Figure 16 shown. When the external force applied to the trigger component 103 is removed, under the action of the tension spring, the trigger component 103 returns to the first position again, and the unlocking pin 112 is compressed inside the locking member 111, losing the binding force on the locking member 111. Under the action of the compression spring, the locking member 111 slides upward, and the unlocking pin 112 pops out again under the action of the compression spring and is fixed in the limiting groove of the lower housing 101. The locking member 111 is reset to the first position (locking position) again, forming a lock on the trigger component 103.

[0120] Apply an external force to the trigger member 103 again. The trigger member 103 slides backward. 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 member 208 to slide backward. The puncture needle connecting member 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 adjusting member 209, the guide rod 210 and the suture fixing seat 211 stop moving backward. At this time, the puncture needle connecting member 208 continues to retract, completing the release of the distal anchor. Until the trapezoidal boss 2081 on the puncture needle connecting member 208 lifts the hook of the stroke adjusting member 209, releasing the guide rod 210 to continue sliding backward, tightening the suture. At this time, the puncture needle is completely retracted, and the distal anchor is completely released, as Figure 23 shown.

[0121] As Figure 18 and Figure 19 shown, in the initial state, the push lock member 215 is connected to the push member 213, so that the push member 213 is locked and cannot move. When the trigger member 103 moves backward, the elastic stop bar 114 is squeezed into the card slot of the lower housing 101 while unlocking the shearing trigger rod 113. Continuously apply an external force to the trigger member 103, and at the same time apply an upward thrust to the shearing push button 115. It drives the shearing trigger rod 113 to move upward from the first position to the second position until the shearing trigger rod 113 contacts and pushes away the push lock member 215, causing it to slide laterally until the hook portion of the push lock member 215 disengages from the push member 213, as Figure 20 shown. At this time, the tension spring 233 pulls the push member 213 towards the shearing member 212, pushing the proximal anchor forward until the push member 213 collides with the support member 214, causing the support member 214 to pivot to unlock the shearing member 212, as Figure 21 shown. Under the action of the tension spring, the shearing member 212 slides towards the push member 213, driving the shearing rod to complete the shearing. If there is a structural jam during this process that causes the action to not be completed smoothly, manual operation can be performed through the manual push button. Remove the thrust on the shearing push button 115, and it returns to the first position under the action of the compression spring. Remove the external force on the trigger member 103, and it returns to the first position again under the action of the tension spring. At this time, the energy storage slider 106 stays in the second position under the action of the locking slider 108, maintaining the energy storage state. The elastic stop bar 114 loses the external force and returns to its original state, continuing to lock the shearing trigger rod 113.

[0122] After replacing the magazine, the components of the handle have 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.

[0123] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "one implementation", "specific implementation", "other implementations", "examples", "specific examples", 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, or example of the present invention. In this specification, the schematic representations 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, implementations, 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.

[0124] 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 to form technical solutions within the scope of the present invention without departing from the principles and purposes of the present invention. Any simple modifications, equivalent changes, and modifications 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), a puncture needle (221) capable of moving back and forth is inserted inside the puncture needle tube (224), a suture (500) capable of moving back and forth is inserted inside the puncture needle (221), and 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), a shearing rod (228) and a pushing rod (227) capable of moving back and forth are inserted inside the push-pull tube (225), and 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 inside the magazine housing in a manner capable of sliding back and forth, and the front part of the puncture needle connector (208) is fixedly connected to the proximal end of the puncture needle (221); A shearing component (212), which is installed inside the magazine housing in a manner capable of sliding back and forth, and the shearing component (212) pulls the blade (223) backward through the shearing rod (228) to complete the action of cutting the suture; A pushing component (213), which is installed inside the magazine housing in a manner capable of sliding back and forth, and the pushing component (213) pushes the proximal anchor (400) forward through the pushing rod (227); 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; A support member (214), which is installed between the shearing component (212) and the pushing component (213), and the front and back ends of the support member (214) can move and have two position states: when the support member (214) is in the first position, it limits the backward movement of the shearing component (212) and does not limit the pushing component (213); when the support member (214) is in the second position, it limits the forward movement of the pushing component (213) and does not limit the shearing component (212).

2. A magazine for an anchor conveying system according to claim 1, characterized in that, The middle part of the support member (214) is hinged to the magazine housing through a hinge pin (230).

3. A magazine for an anchor conveyor system according to claim 1, characterized in that, A limiting column (2144) is provided below the front end (2141) of the support member (214).

4. A magazine for an anchor conveying system according to claim 1, characterized in that The rear end of the support member (214) includes a first limiting end (2142), which always blocks in front of the pushing component (213), and when the pushing component (213) moves forward, it can push the support member (214) to swing and implement a limit.

5. A magazine for an anchor conveying system according to claim 1, characterized in that, The pushing component (213) and the shearing component (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 component (212) and the pushing component (213) towards each other.

6. A magazine for an anchor conveyor system according to claim 1, characterized in that, It further includes a pushing lock (215) provided inside the magazine housing. When the pushing lock (215) is in the initial position, it is connected to the pushing component (213), so that the pushing component (213) is locked and cannot move.

7. A magazine for an anchor conveying system according to claim 6, characterized in that, The pushing lock (215) has a hook portion (2151), and the hook portion (2151) cooperates with a clamping portion on the pushing component (213) to achieve limit locking.

8. A magazine for an anchor conveying system according to claim 6, wherein, The pushing lock (215) has a release part (2152), and by pushing the release part (2152), the pushing component (213) is unlocked.

9. An anchor conveying system, comprising a handle (100) and a magazine (200), characterized in that, The magazine (200) is a magazine for an anchor conveying system according to any one of claims 1 to 8.

10. A method for conveying an anchor, characterized in that, An anchor conveying system according to claim 9 is adopted.

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