Stitching instrument, treatment device with stitching instrument and treatment equipment

Abstract

The utility model relates to a treatment device, in particular to a stitching instrument, a treatment device with the stitching instrument and treatment equipment with the stitching instrument. The stapler includes: a main housing; the suture needle is slidably arranged on the main shell, one end of the suture needle is connected with a suture line, and the other end of the suture needle is a tip; the needle inserting assembly comprises a driving part and a clamping part, the clamping part and the suture needle are in a separable clamping relation, and the driving part acts on the clamped clamping part and the suture needle to control the suture needle to advance; the needle inserting assembly further comprises a transmission mechanism, the transmission mechanism is located outside the main shell and connected between the driving piece and the clamping piece, and the transmission mechanism can drive the clamping piece to do reciprocating motion along the motion trail of the suture needle under the action of the driving piece. By means of the arrangement, the length of the operation rope exposed in a living body can be shortened, the advancing turning points of the operation rope can be reduced, interference of other operation instruments and in-vivo tissue on the operation rope can be reduced, resistance of the operation rope can be reduced, and the risk that the operation rope is wound is reduced.

Description

Technical Field

[0001] The present application relates to a treatment device, and more particularly, to a stapler, a treatment device having the stapler, and a treatment apparatus. Background Art

[0002] Minimally invasive techniques are the trend of modern surgical development, but scars will still remain on the patient's body surface. Therefore, scarless surgery has emerged. To achieve a scarless body surface, the surgery must be completed by a flexible endoscope through a natural cavity. Therefore, natural orifice transluminal endoscopic surgery (NOTES) has become a research hotspot for scarless surgery and is also the third-generation surgical method after open surgery and laparoscopic surgery. Scarless surgery on the body surface has less physiological trauma, less psychological trauma, and correspondingly fewer intraoperative and postoperative complications. In addition, NOTES does not require general anesthesia, uses less anesthetic drugs, reduces the depth of anesthesia, and some patients are in a conscious state, greatly reducing the anesthesia risk. Moreover, the postoperative recovery is faster, the rehabilitation time is significantly shortened, and the occurrence of postoperative complications is reduced; it is more beneficial to extremely weak patients and patients with a high surgical risk.

[0003] The Overstitch stapler (https: / / apolloendo.com / physicians / physicians-overstitch / overstitch / ) of Apollo Endosurgery, Inc. in the United States, and the endoscopic helical tacking system (Endoscopic HeliX Tacking System; https: / / www.x-tack.com / ) recently launched by the company. The former partly solves the problem of closing internal tissues through natural orifices. Although the latter can suture larger wounds or other target suture tissues, the system not only has more accessories and complicated operations, but also the suturing depends on at least three metal helical tacks, and the knotting still depends on clips. The hard and sharp helical tacks that rotate through the tissue for suturing remain in the body, making it difficult to eliminate the possibility of secondary injuries in the digestive system, and even the urinary and reproductive systems, such as perforation, intestinal leakage, and adhesion. In addition, when stacked together with the hard clips for knotting, it is more difficult for the peristalsis of the digestive tract and the movement of the abdomen not to cause injuries. It is extremely difficult to accurately insert and lift the tissue without penetrating the tissue for the separated tissue that does not penetrate the entire layer; for the separated tissue that penetrates the entire layer, due to the lack of fixation or support at the separated edge, it is difficult to avoid aggravating the separation of the separated tissue and the inclination of the screw when inserting the screw into the tissue, resulting in the screw being unable to be inserted vertically or deviating from the insertion.

[0004] Chinese Patent Application for Invention 202310000329.7 (filing date: January 3, 2023) discloses a stapler, a treatment device with a stapler, and a treatment equipment. This patent realizes the suturing and knotting of soft tissues in the body by controlling the needle insertion component and the anti-needle withdrawal component. However, in this application, the operating rope of the needle insertion component is mostly exposed outside the main housing, which not only poses a risk of entanglement with the suture thread but also is interfered by the internal tissues in the body, resulting in an increase in operating resistance. Summary of the Utility Model

[0005] In order to overcome at least one deficiency of the prior art, embodiments of the present application provide a stapler, a treatment device with a stapler, and a treatment equipment.

[0006] In a first aspect, embodiments of the present application provide a stapler, which includes:

[0007] A main housing;

[0008] A suture needle slidably disposed in the main housing, one end of the suture needle is connected with a suture thread, and the other end is a tip;

[0009] A needle insertion component disposed in the main housing and including a driving member and an engaging member, the engaging member has a separable engaging relationship with the suture needle, and the driving member acts on the engaged engaging member and the suture needle to control the forward movement of the suture needle;

[0010] Among them, the needle insertion component further includes a transmission mechanism located outside the main housing and connected between the driving member and the engaging member. The transmission mechanism can drive the engaging member to reciprocate along the movement trajectory of the suture needle under the action of the driving member.

[0011] In an optional embodiment, the transmission mechanism is a universal joint transmission mechanism.

[0012] In an optional embodiment, the transmission mechanism includes at least one transmission shaft, a movable member, and a reset member; the first end of at least one transmission shaft is universally connected to the engaging member, and the second end of at least one transmission shaft is universally connected to the movable member; the movable member is disposed in the main housing and connected to the driving member. Under the action of the driving member, the movable member moves relative to the main housing to change the position of the second end of at least one transmission shaft; the reset member is disposed on the movable member, and when the action of the driving member disappears, the reset member is used to drive the movable member to reset.

[0013] In an optional embodiment, the movable member includes a telescopic rod, the first end of the telescopic rod is fixedly connected to the main housing, the second end of the telescopic rod is universally connected to the second end of at least one transmission shaft, and the driving member is connected to the second end of the telescopic rod.

[0014] In an optional embodiment, the reset member is a compression spring, the compression spring is disposed in the telescopic rod, and the compression spring is compressed when the telescopic rod contracts.

[0015] In an alternative embodiment, the movable member includes a rotating shaft and a spool. The rotating shaft is disposed in the main housing. The spool is sleeved on the rotating shaft and can rotate circumferentially relative to the rotating shaft. The outer edge of the spool is universally connected to the second end of at least one transmission shaft, and the driving member is wound around the outer edge of the spool.

[0016] In an alternative embodiment, an annular groove is provided on the outer edge of the spool, and the driving member is wound in the annular groove of the spool.

[0017] In an alternative embodiment, the reset member is a volute spring. The volute spring is disposed in the spool and wound around the outside of the rotating shaft. The volute spring is wound around the rotating shaft when the spool rotates circumferentially.

[0018] In a second aspect, an embodiment of the present application further provides a treatment device for use in conjunction with an endoscope. The treatment device includes:

[0019] A stapler fixed to the distal end of the endoscope. The stapler includes:

[0020] A main housing;

[0021] A suture needle slidably disposed in the main housing. One end of the suture needle is connected to a suture thread, and the other end is a tip;

[0022] A needle driving assembly disposed in the main housing and including a driving member and a engaging member. The engaging member has a separable engaging relationship with the suture needle. The driving member acts on the engaged engaging member and the suture needle to control the advancement of the suture needle;

[0023] Wherein, the needle driving assembly further includes a transmission mechanism located outside the main housing and connected between the driving member and the engaging member. The transmission mechanism can drive the engaging member to reciprocate along the movement track of the suture needle under the action of the driving member;

[0024] A control handle fixed to the operating end of the endoscope. The control handle is connected to the needle driving assembly of the stapler, and the control handle controls the needle driving assembly to control the advancement of the suture needle.

[0025] In a third aspect, an embodiment of the present application further provides a treatment device, including:

[0026] An endoscope;

[0027] A stapler fixed to the distal end of the endoscope. The stapler includes:

[0028] A main housing;

[0029] A suture needle slidably disposed in the main housing. One end of the suture needle is connected to a suture thread, and the other end is a tip;

[0030] The needle insertion assembly is disposed in the main housing and includes a driving member and a engaging member. The engaging member has a separable engaging relationship with the suture needle. The driving member acts on the engaged engaging member and the suture needle to control the advancement of the suture needle.

[0031] Wherein, the needle insertion assembly further includes a transmission mechanism. The transmission mechanism is located outside the main housing and is connected between the driving member and the engaging member. The transmission mechanism can drive the engaging member to reciprocate along the movement track of the suture needle under the action of the driving member.

[0032] The control handle is fixed to the operating end of the endoscope. The control handle is connected to the needle insertion assembly of the stapler, and the control handle controls the needle insertion assembly to control the advancement of the suture needle.

[0033] The above technical solution of the present application has the following beneficial technical effects:

[0034] For the stapler, the treatment device with the stapler, and the treatment equipment provided by the embodiments of the present application, compared with the method of directly connecting the operating rope to the engaging member, the driving member and the engaging member are connected through the transmission mechanism, and the power of the driving member can be transmitted to the engaging member by using the transmission mechanism, so that the engaging member reciprocates along the advancing direction of the suture needle, thereby driving the suture needle to advance. In addition, since at least a part of the transmission mechanism is exposed outside the main housing, that is, part or all of the transmission mechanism can be disposed on the outer surface of the main housing. Such a setting can shorten the length of the operating rope exposed in the living body, reduce the turning points of the movement of the operating rope, thereby reducing the interference of other operating instruments and internal tissues on the operating rope, facilitating reducing the resistance of the operating rope, and reducing the risk of the operating rope being wound.

[0035] To make the above objects, features, and advantages of the present application more obvious and understandable, the following specific preferred embodiments are given in conjunction with the accompanying drawings and are described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 FIG. shows a schematic structural diagram of a stapler provided by an embodiment of the present application;

[0037] Figure 2 and Figure 3 FIG. shows Figure 1 a schematic structural diagram from another perspective;

[0038] Figure 4 FIG. shows Figure 1 an exploded schematic diagram;

[0039] Figure 5 FIG. shows Figure 1 an assembly schematic diagram of the suture needle and the needle insertion assembly in ;

[0040] Figure 6 FIG. shows Figure 1 a schematic structural diagram of the suture needle in ;

[0041] Figure 7 shows Figure 6 a schematic structural view from another perspective;

[0042] Figures 8 to 16 shows Figure 1 schematic views of different states of the suture needle and the needle insertion assembly during actuation;

[0043] Figure 17 shows Figure 10 a schematic structural view from another perspective;

[0044] Figure 18 shows Figure 17 a partial enlarged view of A therein;

[0045] Figure 19 shows Figure 13 a schematic structural view from another perspective;

[0046] Figure 20 shows Figure 19 a partial enlarged view of B therein;

[0047] Figure 21 shows Figure 11 a schematic structural view from another perspective;

[0048] Figure 22 shows Figure 21 a partial enlarged view of C therein;

[0049] Figure 23 shows Figure 15 a schematic structural view from another perspective;

[0050] Figure 24 shows Figure 23 a partial enlarged view of D therein;

[0051] Figure 25 shows a schematic structural view of another stapler provided by an embodiment of the present application;

[0052] Figure 26 shows Figure 25 a schematic structural view from another perspective;

[0053] Figure 27 shows Figure 25 an exploded view of;

[0054] Figure 28 shows Figure 25 an assembly schematic view of the suture needle and the needle insertion assembly therein;

[0055] Figures 29 to 37 shows Figure 25Schematic diagrams of different states of the middle suture needle and the needle insertion assembly during the actuation process;

[0056] Figure 38 The structural schematic diagram of a control handle provided by an embodiment of the present application is shown;

[0057] Figure 39 Shown is Figure 38 The structural schematic diagram from another perspective;

[0058] Figure 40 Shown is Figure 38 The assembly schematic diagram of;

[0059] Figure 41 Shown is Figure 38 The disassembly schematic diagram of;

[0060] Figure 42 Shown is Figure 38 The schematic diagram when the wire pulling handle in is in the first position;

[0061] Figure 43 Shown is Figure 38 The schematic diagram when the wire pulling handle in is in the second position;

[0062] Figure 44 Shown is Figure 38 The schematic diagram after the connection direction of the second connecting piece in changes; Detailed implementation manners

[0063] This embodiment provides a stapler, a control handle cooperating with the stapler, a treatment device composed of the stapler and the control handle, and a treatment system composed of the treatment device and an endoscope cooperating with it. The stapler provided by this embodiment can not only be used in cooperation with an endoscope, but also can be used in cooperation with other devices capable of realizing steering guidance.

[0064] Embodiment 1

[0065] As Figures 1 to 24As shown in the figure, the stapler 1 provided in this embodiment is used to enter the body through a natural cavity or other channels to close (staple) internal tissues for performing surgical operations within the body. The stapler 1 includes a main housing 11, a staple 13, and a staple driving assembly 12. The main housing 11 is used to connect to the tip of an endoscope, and the main housing 11 is used to mount the staple 13 and the staple driving assembly 12. The staple 13 is slidably disposed in the main housing 11. The staple driving assembly 12 is disposed on the main housing 11 and forms a separable engagement relationship with the staple 13 to control the advancement of the staple 13. Specifically, the staple driving assembly 12 includes a driving member and an engaging member 122. The engaging member 122 is used to form a separable engagement relationship with the staple 13. The driving member is used to act on the engaged engaging member 122 and staple 13 so that the engaging member 122 drives the staple 13 to advance. During the next stapling, the driving member and the engaging member 122 are reset, and the driving member acts on the engaged engaging member 122 and staple 13 again so that the engaging member 122 drives the staple 13 to advance, and this cycle is repeated to achieve continuous stapling.

[0066] In some examples, the main housing 11 includes a first housing 111 and a second housing 112. Among them, the first housing 111 is used to connect to the endoscope. The second housing 112 is connected to the first housing 111, and the second housing 112 is used to mount the staple 13 and the staple driving assembly 12.

[0067] In some examples, the first housing 111 has a connecting handle 1111 extending along its axial direction, and the first housing 111 is connected to the second housing 112 through the connecting handle 1111. When specifically arranged, the connecting handle 1111 is provided with a connecting groove, and a connecting protrusion can be provided on the second housing 112. The shape and size of the connecting protrusion match the shape and size of the connecting groove, and the connecting protrusion can be inserted into the connecting groove to connect the connecting handle 1111 and the second housing 112 together. However, this embodiment does not make any limitation on this.

[0068] In some examples, in order to firmly connect the first housing 111 and the second housing 112, the connection seam formed by connecting the connecting groove and the connecting protrusion can be welded together by laser welding. However, this embodiment does not make any limitation on this. In other embodiments, the main housing 11 may not be divided into two parts, namely the first housing 111 and the second housing 112. That is to say, the main housing 11 can be formed by an integral molding method. The integrally formed main housing 11 makes the connection between the first housing 111 and the second housing 112 have a smooth transition, and there are no sharp corners at the connection, thereby greatly reducing the damage caused by the stapler 1 touching the internal tissues.

[0069] In some examples, the outer surfaces of the first housing 111 and the second housing 112 are both smooth surfaces without edges and corners. Such a setting makes the stapler 1 as little as possible affect the field of view of the tip of the endoscope, facilitating the suturing operation in the body and also reducing the damage caused by touching the body tissues. In addition, the outer surface is arc-shaped, which also avoids damaging the body tissues by the edges of the housing during the operation. However, this embodiment does not make any limitation thereto.

[0070] In some examples, there is a channel in the middle of the first housing 111. When used in cooperation with the endoscope, this channel enables the stapler 1 to be sleeved on the tip of the endoscope. However, this embodiment does not make any limitation thereto.

[0071] As Figure 4 shown, in some examples, a first chute 1121 and a second chute 1122 are provided in the second housing 112. In this embodiment, the second housing 112 is an arc-shaped structure, and both the first chute 1121 and the second chute 1122 are arranged along the arc direction of the second housing 112. When specifically arranged, the suture needle 13 is arranged in the first chute 1121, and the engaging member 122 is arranged in the second chute 1122. In order to enable the engaging member 122 to engage with the suture needle 13, a first slit may be provided between the first chute 1121 and the second chute 1122 so that the engaging member 122 can pass through the first slit and enter the first chute 1121. In order to enable the engaging member 122 to be connected to the driving member, a second slit 1125 may be provided between the second chute 1122 and the outside so that the driving member can pass through the second slit 1125 and enter the first chute 1121, as Figures 1 to 3 shown. However, this embodiment does not make any limitation thereto.

[0072] In some examples, the first chute 1121 and the second chute 1122 are arranged to overlap each other in sequence along the axial direction of the second housing 112. However, this embodiment does not make any limitation thereto. In other embodiments, the first chute 1121 and the second chute 1122 may be arranged in sequence along the radial direction of the second housing 112. That is, one of the first chute 1121 and the second chute 1122 is located on the periphery of the other. Such a setting can reduce the height of the second housing 112, thereby facilitating the expansion of the field of view of the endoscope.

[0073] As Figure 18 and Figure 20As shown, in some examples, the second housing 112 is provided with a first reverse chute 1126 and a second reverse chute 1127. When specifically provided, the first reverse chute 1126 and the second reverse chute 1127 are respectively located on both sides of the middle of the second chute 1122. Specifically, the first reverse chute 1126 is provided on the side wall of the first slit, and the second reverse chute 1127 is provided on the inner wall of the second chute 1122. During use, the first reverse chute 1126 can limit the backward movement of the engaging member 122 when driving the suture needle 13 forward, and the second reverse chute 1127 can limit the backward movement of the engaging member 122 when resetting. However, this embodiment does not make any limitation in this regard.

[0074] As Figure 4 , Figure 6 and Figure 7 shown, in some examples, in order to achieve the engagement between the suture needle 13 and the engaging member 122, the suture needle 13 may be provided with an engaging portion 131 to engage with the engaging member 122 by using the engaging portion 131.

[0075] In some examples, the engaging portion 131 may be formed by a depression provided on the surface of the suture needle 13, that is, a groove is provided on the surface of the suture needle 13, and the engaging portion 131 is formed on one side of the groove close to the tip of the suture needle 13. However, this embodiment does not make any limitation in this regard. In other embodiments, the engaging portion 131 may also be formed by a protrusion provided on the surface of the suture needle 13, or formed by a through hole penetrating the suture needle 13.

[0076] In some examples, the depth of the groove is not greater than one-fourth of the diameter of the suture needle 13. Such a setting can avoid the reduction of the strength of the suture needle 13 due to the too deep groove, thereby causing the suture needle 13 to break. However, this embodiment does not make any limitation in this regard.

[0077] In some examples, the number of the engaging portions 131 is multiple, and the multiple engaging portions 131 are distributed at intervals along the axial direction of the suture needle 13. During specific use, the engaging member 122 can engage with any one or more of the multiple engaging portions 131.

[0078] As Figure 7 shown, in some examples, the engaging portion 131 can be inclined as a whole toward the tail of the suture needle 13. Such a setting can form barbs on the surface of the suture needle 13 to play a role in restricting the backward movement of the suture needle 13 during suturing. Compared with setting an anti-retreat needle assembly between the suture needle 13 and the main housing 11, this anti-backward movement design can reduce the number of parts of the stapler 1, which is beneficial to cost saving, improving the assembly efficiency and reducing the risk links. In addition, with the reduction of the number of parts, the resistance during the movement of the suture needle 13 will also decrease, thereby facilitating the operation of the operator. However, this embodiment does not make any limitation in this regard.

[0079] As Figure 7 shown, in some examples, the engaging portions 131 are provided on opposite sides of the suture needle 13. Such an arrangement can improve the anti-backward movement effect of the suture needle 13, and when the two sides of the suture needle 13 are respectively engaged with the engaging members 122, the suture needle 13 is more evenly stressed, making the movement of the suture needle 13 smoother. However, this embodiment does not make any limitation in this regard. In other embodiments, the engaging portions 131 may be provided on one side of the suture needle 13 or on the central axis of the suture needle 13.

[0080] In some examples, when the engaging portions 131 are formed by depressions provided on the surface of the suture needle 13, the engaging portions 131 on both sides of the suture needle 13 are arranged in a staggered manner. Such an arrangement can avoid the local size of the suture needle 13 from being too small, which is beneficial to ensuring the strength of the suture needle 13. However, this embodiment does not make any limitation in this regard.

[0081] In some examples, the engaging member 122 can change its posture to engage with or disengage from the suture needle 13. For example, the engaging member 122 has a first posture and a second posture. In the first posture, the engaging member 122 and the suture needle 13 are engaged. In the second posture, the engaging member 122 and the suture needle 13 are disengaged. However, this embodiment does not make any limitation in this regard.

[0082] As Figures 4 to 5 shown, in some examples, the engaging member 122 includes a slider 1221 and a spring claw 1222. The spring claw 1222 has elasticity and is provided on the slider 1221. The slider 1221 is slidably and rotatably provided on the main housing 11 (the second chute 1122), and has a first posture and a second posture relative to the main housing 11. In the first posture, the spring claw 1222 and the suture needle 13 are engaged. In the second posture, the spring claw 1222 and the suture needle 13 are disengaged. Such an arrangement can achieve the engagement or disengagement of the engaging member 122 and the suture needle 13 by rotating the slider 1221. Compared with the prior art method of controlling the expansion and contraction of the needle-advancing teeth for engagement, this can not only stably engage, but also simplify the structure of the engaging member 122, which is beneficial to reducing the production cost, improving the production efficiency, and reducing the risk points during use. In addition, since the engagement or disengagement of the engaging member 122 and the suture needle 13 is achieved by rotating the slider 1221, the back thrust generated when the engaging member 122 and the suture needle 13 are disengaged can also be reduced, thereby avoiding the backward movement of the suture needle 13 caused by the reset of the engaging member 122. However, this embodiment does not make any limitation in this regard.

[0083] In some examples, the slider 1221 rotates relative to the main housing 11 in different directions to perform attitude conversion. Specifically, the slider 1221 rotates relative to the main housing 11 in a first direction to a first attitude, and the slider 1221 rotates relative to the main housing 11 in a second direction to a second attitude, where the first direction and the second direction are opposite directions. For example, the first direction can be Figure 12 the clockwise direction of the slider 1221 as shown, and the second direction can be Figure 9 the counterclockwise direction of the slider 1221 as shown. However, this embodiment does not make any limitation thereto.

[0084] As Figures 23 - 24 shown, in some examples, the slider 1221 cooperates with the first transverse ribbed bar 1123 provided on the main housing 11 so that the slider 1221 can rotate relative to the main housing 11 in a first direction to a first attitude. Specifically, the first transverse ribbed bar 1123 can be a convex rib protruding from the inner surface of the second sliding groove 1122, and it is located at the first end of the second housing 112. When the engaging member 122 is reset (moves to the left end of the second sliding groove), the first transverse ribbed bar 1123 can locally limit the slider 1221 (such as the upper protrusion of the slider 1221) so that the slider 1221 rotates relative to the main housing 11 in a first direction to a first attitude. However, this embodiment does not make any limitation thereto.

[0085] As Figures 21 - 22 shown, in some examples, the slider 1221 cooperates with the second transverse ribbed bar 1124 provided on the main housing 11 so that the slider 1221 can rotate relative to the main housing 11 in a second direction to a second attitude. Specifically, the second transverse ribbed bar 1124 can be a convex rib protruding from the inner surface of the second sliding groove 1122, and it is located at the second end of the second housing 112. When the engaging member 122 drives the suture needle 13 to advance, the second transverse ribbed bar 1124 can locally limit the slider 1221 (such as the upper protrusion of the slider 1221) so that the slider 1221 rotates relative to the main housing 11 in a second direction to a second attitude. However, this embodiment does not make any limitation thereto.

[0086] In some examples, the slider 1221 can be a spherical structure or can be a cylindrical structure. However, this embodiment does not make any limitation thereto. In this embodiment, it is preferably that the slider 1221 is a spherical structure.

[0087] In some examples, the spring claw 1222 can cooperate with the limiting portion provided on the main housing 11 to limit the slider 1221 from rotating relative to the main housing 11 in a first direction during reset. Specifically, the limiting portion can be a claw groove 1128 that cooperates with the spring claw 1222. Specifically, the claw groove 1128 is provided on the inner surface of the second sliding groove 1122 and is arranged along the arc direction of the second housing 112, such as Figure 12As shown, in the first posture, the elastic claw 1222 and the suture needle 13 are engaged and disengaged from the claw groove 1128 to release the cooperation with the claw groove 1128. In the second posture, the elastic claw 1222 and the suture needle 13 are disengaged and engaged with the claw groove 1128 to achieve the cooperation with the claw groove 1128. When the elastic claw 1222 cooperates with the claw groove 1128, the claw groove 1128 can limit the elastic claw 1222, so that the elastic claw 1222 cannot withdraw from the claw groove 1128 when not subjected to an external force, thereby preventing the slider 1221 from rotating relative to the main housing 11 in the first direction. Such a setting can prevent the slider 1221 from rotating relative to the second housing 112 during reset, thereby avoiding the engaging member 122 returning to the first posture in advance and affecting the reset of the engaging member 122. However, this embodiment does not make any limitation thereto.

[0088] As Figure 4 shown, in some examples, the elastic claw 1222 may include a first elastic claw 1222a and a second elastic claw 1222b, and the first elastic claw 1222a and the second elastic claw 1222b respectively cooperate with different engaging portions 131 provided on the suture needle 13 to engage the engaging member 122 and the suture needle 13. When specifically arranged, the first elastic claw 1222a and the second elastic claw 1222b respectively cooperate with the engaging portions 131 provided on both sides of the suture needle 13 to engage the engaging member 122 and the suture needle 13. However, this embodiment does not make any limitation thereto.

[0089] As Figure 4 shown, in some examples, both the first elastic claw 1222a and the second elastic claw 1222b may be multiple. When specifically arranged, multiple first elastic claws 1222a can engage with multiple engaging portions 131 located outside the suture needle 13, and multiple second elastic claws 1222b can engage with multiple engaging portions 131 located inside the suture needle 13. Such a setting is beneficial to dispersing stress and improving the stability of the suture needle 13. However, this embodiment does not make any limitation thereto.

[0090] In some examples, the driving member may adopt a silk thread. In this embodiment, the silk thread is defined as the operating rope 121. In a specific implementation, the first end of the operating rope 121 (passing through the second slit 1125) is connected to the engaging member 122, and the second end of the operating rope 121 passes through the forceps channel tube of the endoscope or an external tube attached outside the endoscope and is led out. During use, an operator can apply a pulling force to the second end of the operating rope 121 by manual or mechanical power to tighten the operating rope 121 and drive the engaging member 122 to move in the needle-inserting direction in the second chute 1122, thereby realizing the needle insertion of the suture needle 13. However, this embodiment does not make any limitation thereto. In other embodiments, the driving member may not adopt the operating rope 121, and the control of the suture needle 13 may be realized through other structures.

[0091] AsFigures 1 to 4 As shown, in some examples, a transmission mechanism 123 may be provided between the driving member and the engaging member 122. At least a part of the transmission mechanism 123 is exposed outside the main housing 11 and connected between the driving member and the engaging member 122. And, under the action of the driving member, the transmission mechanism 123 can drive the engaging member 122 to reciprocate along the advancing direction of the suture needle 13. Compared with the way of directly connecting the operating rope 121 to the engaging member 122, in this embodiment, the driving member and the engaging member 122 are connected through the transmission mechanism 123, and the power of the driving member can be transmitted to the engaging member 122 by using the transmission mechanism 123, so that the engaging member 122 reciprocates along the advancing direction of the suture needle 13, thereby driving the suture needle 13 to advance. In addition, since at least a part of the transmission mechanism 123 is exposed outside the main housing 11, that is, part or all of the transmission mechanism 123 can be arranged on the outer surface of the main housing 11. Such an arrangement can shorten the length of the operating rope 121 exposed in the organism, reduce the turning points of the traveling of the operating rope, thereby being able to reduce the interference of other operating instruments and the internal tissues on the operating rope 121, being beneficial to reducing the resistance of the operating rope 121 and reducing the risk of winding of the operating rope 121.

[0092] In some examples, the transmission mechanism 123 may be a universal joint transmission mechanism 123. However, this embodiment does not make any limitation thereto.

[0093] As Figures 1 to 4 shown, in some examples, the transmission mechanism 123 may include at least one transmission shaft 1231, a movable member and a reset member. The first end of at least one transmission shaft 1231 is universally connected to the engaging member 122, and the second end of at least one transmission shaft 1231 is universally connected to the movable member. The movable member is arranged on the main housing 11 and connected to the driving member. Under the action of the driving member, the movable member can move relative to the main housing 11 to change the position of the first end of at least one transmission shaft 1231. The reset member is arranged on the movable member. When the action of the driving member disappears, the reset member can be used to drive the movable member to reset. Specifically, the driving member can act on the movable member, and the movable member can move under the action of the driving member, so as to drive the engaging member 122 to reciprocate along the advancing direction of the suture needle 13 through at least one transmission shaft 1231. Such an arrangement can realize the transmission of the transmission mechanism 123. However, this embodiment does not make any limitation thereto.

[0094] As Figure 4 , Figure 5 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 15 and Figure 16As shown, in some examples, at least one drive shaft 1231 may include a first drive shaft 1231a and a second drive shaft 1231b. The first end of the first drive shaft 1231a is connected to the engaging member 122, the second end of the first drive shaft 1231a is connected to the first end of the second drive shaft 1231b, and the second end of the second drive shaft 1231b is connected to the movable member through spherical hinges. During specific setting, the angles between the second drive shaft 1231b and the movable member and between the second drive shaft 1231b and the first drive shaft 1231a can both change, thereby changing the position of the first end of the first drive shaft 1231a. However, this embodiment does not make any limitation in this regard.

[0095] In some examples, ball heads may be respectively provided at the first end and the second end of the first drive shaft 1231a, and at the second end of the second drive shaft 1231b. Ball seats may be respectively provided at the movable end of the movable member, the first end of the second drive shaft 1231b, and the engaging member 122. Further, in order to reduce the structural size of the second housing 112, the slider 1221 of the engaging member 122 may be designed as a ball seat, without separately providing a ball seat on the slider 1221. However, this embodiment does not make any limitation in this regard.

[0096] In some examples, the first drive shaft 1231a is located in the second slit 1125, and the length of the first drive shaft 1231a is consistent with the wall thickness of the second chute 1122. With this setting, the ball heads at both ends of the first drive shaft 1231a limit the first drive shaft 1231a, preventing it from tilting relative to the second housing 112. However, this embodiment does not make any limitation in this regard.

[0097] As Figures 1 to 4As shown, in some examples, the movable member includes a telescopic rod 1232. The first end of the telescopic rod 1232 is fixedly connected to the main housing 11 (the first housing 111), and the second end of the telescopic rod 1232 is universally connected to the second end of at least one transmission shaft 1231 (the second end of the second transmission shaft 1231b). During use, the driving member is connected to the second end of the telescopic rod 1232. When the driving member is tightened, the telescopic rod 1232 contracts, and the angles between the telescopic rod 1232 and the second transmission shaft 1231b, between the second transmission shaft 1231b and the first transmission shaft 1231a, and the position of the first end of the first transmission shaft 1231a change, so that the engaging member 122 can move in the second chute 1122. When the driving member is released, the reset member drives the telescopic rod 1232 to extend, and the angles between the telescopic rod 1232 and the second transmission shaft 1231b, between the second transmission shaft 1231b and the first transmission shaft 1231a, and the position of the first end of the first transmission shaft 1231a change again, so that the engaging member 122 can continue to move or reset in the second chute 1122. However, this embodiment does not make any limitation in this regard.

[0098] In some examples, when the telescopic rod 1232 completes one telescopic operation, the engaging member 122 completes one needle insertion operation. For example, after the telescopic rod 1232 completes one contraction, the moving stroke of the engaging member 122 is one-half of the second chute 1122. After the telescopic rod 1232 completes one extension, the moving stroke of the engaging member 122 is one-half of the second chute 1122. That is, after the telescopic rod 1232 completes one reciprocation, the engaging member 122 can move from one end of the second chute 1122 to the other end. However, this embodiment does not make any limitation in this regard. In other embodiments, when the telescopic rod 1232 completes multiple telescopic operations or less than one telescopic operation, the engaging member 122 completes one needle insertion operation.

[0099] As Figures 4 to 5 shown, in some examples, the reset member can be a compression spring 1233, and the compression spring 1233 is disposed in the telescopic rod 1232. During use, the compression spring 1233 is compressed when the telescopic rod 1232 contracts and stores elastic potential energy. When the driving member is released, the compression spring 1233 drives the telescopic rod 1232 to extend and reset under the action of its elastic potential energy, so as to drive the engaging member 122 to reset or continue to move forward through the transmission shaft. However, this embodiment does not make any limitation in this regard. In other embodiments, the reset member can be replaced with a structure made of a metal elastic sheet or a high molecular material such as elastic silicone with a certain restoring force or elastic force.

[0100] To more clearly illustrate how the stapler 1 provided in the embodiment of the present application performs the suturing action on the target suture tissue, the following is combined with Figures 8 - 16A description will be given. To clearly show the positions of the internal parts, not all components are drawn in the attached drawings. The "left side", "middle part", and "right side" mentioned in the following description are all based on the Figures 8 - 16 positional relationship therein.

[0101] As Figure 8 shown, at the initial position, the operating rope 121 is slack, the engaging member 122 is located on the left side of the second sliding groove 1122, and the spring claws 1222 of the engaging member 122 are located in the first sliding groove 1121 and are engaged in the grooves on both sides of the tail of the suture needle 13. That is to say, there is a linkage relationship between the engaging member 122 and the suture needle 13.

[0102] As Figure 9 shown, when the operating rope 121 is pulled, the operating rope 121 pulls the telescopic rod 1232 to contract it, and the second transmission shaft 1231b moves upward following the telescopic rod 1232. The angle between the first transmission shaft 1231a and the second transmission shaft 1231b and the position of the first end of the first transmission shaft 1231a change, causing the engaging member 122 to move to the right side of the second sliding groove 1122, thereby driving the suture needle 13 to advance. When the compression spring 1233 is compressed to the limit, the telescopic rod 1232 cannot be further compressed. At this time, the first end of the first transmission shaft 1231a and the engaging member 122 are located in the middle of the second sliding groove 1122.

[0103] As Figure 10 shown, when the operating rope 121 is released, the acting force of the operating rope 121 on the telescopic rod 1232 disappears, and the compression spring 1233 provides a force for the telescopic rod 1232 to extend it. The telescopic rod 1232 gradually extends. During the extension process of the telescopic rod 1232, the first reverse inclined groove 1126 forms a limit on the spring claws 1222, preventing the engaging member 122 from moving to the left side of the second sliding groove 1122, so that the engaging member 122 will continue to move to the right side of the second sliding groove 1122, thereby continuing to drive the suture needle 13 to advance.

[0104] As Figure 11 shown, when the operating rope 121 is continuously released, the engaging member 122 continues to drive the suture needle 13 to advance. When the engaging member 122 approaches the right side of the second sliding groove 1122, the second transverse rib 1124 provided on the right side of the second sliding groove 1122 will generate a limit on the engaging member 122, causing the engaging member 122 to rotate 90° counterclockwise relative to the second housing 112. At the same time, the spring claws 1222 will bend or open outward to withdraw from the grooves on both sides of the suture needle 13. That is to say, the engagement between the engaging member 122 and the suture needle 13 is released. Subsequently, the compression spring 1233 returns to the initial state, and the engaging member 122 completely reaches the right side of the second sliding groove 1122. That is to say, one needle insertion is completed.

[0105] As Figure 12As shown, pull the operating rope 121 again. The operating rope 121 pulls the telescopic rod 1232 to make it contract. The second transmission shaft 1231b moves upward along with the telescopic rod 1232. The angle between the first transmission shaft 1231a and the second transmission shaft 1231b and the position of the first end of the second transmission shaft 1231b change, causing the engaging part 122 to move to the left side of the second chute 1122. When the compression spring 1233 is compressed to the limit, the telescopic rod 1232 cannot be further compressed. At this time, the first end of the first transmission shaft 1231a and the engaging part 122 are located in the middle of the second chute 1122.

[0106] As Figure 13 shown, loosen the operating rope 121 again. The acting force of the operating rope 121 on the telescopic rod 1232 disappears. The compression spring 1233 provides a force for the telescopic rod 1232 to make it extend. The telescopic rod 1232 gradually extends. During the extension process of the telescopic rod 1232, the second reverse inclined groove 1127 limits the spring pawl 1222, preventing the engaging part 122 from moving to the right side of the second chute 1122, so that the engaging part 122 will continue to move to the left side of the second chute 1122.

[0107] As Figure 14 shown, continue to loosen the operating rope 121. The engaging part 122 continues to move to the left side of the second chute 1122. When the engaging part 122 approaches the left side of the second chute 1122, the first horizontal rib 1123 arranged on the left side of the second chute 1122 will limit the engaging part 122, causing the engaging part 122 to rotate clockwise relative to the second housing 112.

[0108] As Figure 15 shown, completely loosen the operating rope 121. The compression spring 1233 returns to its initial state. The engaging part 122 completely reaches the left side of the second chute 1122. At this time, the spring pawl 1222 resets into the first chute 1121 and is engaged in the grooves on both sides of the tip of the suture needle 13. That is to say, there is a linkage relationship between the engaging part 122 and the suture needle 13.

[0109] As Figure 16 shown, pull and loosen the operating rope 121 again, which can make the engaging part 122 move from the left side of the second chute 1122 to the right side, so that the suture needle 13 returns to its initial position. That is to say, one needle exit is completed.

[0110] The above three times of pulling and loosening the operating rope 121 realize one suture of the suture needle 13. Repeat the above operations to perform the suture of the target suture tissue or the knotting operation of the suture. However, the number of times of pulling the rope required for one suture is not limited in this embodiment. It should be understood that in other embodiments, the number of times of pulling the rope required for one suture can be adjusted by adjusting the telescopic amount of the telescopic rod 1232 and the groove interval on the suture needle 13.

[0111] As Figures 38 to 44 shown, in some examples, the operation of the operating rope can be completed by operating the control handle 2. That is to say, for the operation of the driving member, tensioning or releasing can be performed through the control handle 2. However, this embodiment does not make any limitation in this regard. In other embodiments, the driving member can also be other components that can drive the engaging member to move.

[0112] As Figure 38 shown, in some examples, the control handle 2 includes a handle body 21, at least one connecting member 22, a wire-pulling handle 23, and a reset member 24. At least one connecting member 22 is disposed on the handle body 21 and is used to connect the handle body 21 and the endoscope. The wire-pulling handle 23 is slidably disposed on the handle body 21 and is connected to the operating rope 121. The wire-pulling handle 23 has a first position and a second position that slide relative to the handle body 21. As Figure 42 shown, in the first position, the operating rope is in a tensioned state. As Figure shown, in the second position, the operating rope is in a relaxed state. The reset member 24 is disposed between the handle body 21 and the wire-pulling handle 23. The reset member 24 is used to keep the wire-pulling handle 23 in the second position when the wire-pulling handle 23 is not subjected to an external force. That is to say, when the wire-pulling handle 23 slides from the second position to the first position, the operating rope is gradually tensioned. When the wire-pulling handle 23 reaches the first position, the operating rope 121 is in a tensioned state. On the contrary, when the wire-pulling handle 23 slides from the first position to the second position, the operating rope 121 is gradually relaxed. When the wire-pulling handle 23 reaches the second position, the operating rope is in a relaxed state. With such a setting, the tensioning and releasing of the operating rope 121 can be achieved by controlling the sliding of the wire-pulling handle 23 relative to the handle body 21. Compared with the prior art method of using a rope pulley and a clutch disc to wind the operating rope 121, the structure of the control handle 2 can be greatly simplified, which is beneficial to simplifying the assembly process and reducing the production cost. However, this embodiment does not make any limitation in this regard.

[0113] As ​ , ​ and ​ shown, in some examples, a guide rod 211 is provided on the handle body 21. The wire-pulling handle 23 is sleeved on the guide rod 211 and can slide along the axial direction of the guide rod 211. During use, while the wire-pulling handle 23 slides along the axial direction of the guide rod 211, the guide rod 211 can also play a guiding role for the wire-pulling handle 23, which is beneficial to improving the stability of the wire-pulling handle 23, thereby facilitating the operation of the operator. However, this embodiment does not make any limitation in this regard.

[0114] As ​As shown, in some examples, an assembly groove 212 is provided on the handle body 21, and the guide rod 211 is disposed in the assembly groove 212. Specifically, the guide rod 211 penetrates through the handle body 21 and a partial rod body of the guide rod 211 is located in the assembly groove 212. Compared with disposing the guide rod 211 on the outer surface of the handle body 21, such a setting can simplify the external structure of the control handle 2, is beneficial to reducing the structural size of the control handle 2, and makes it convenient for packaging and carrying. However, this embodiment does not make any limitation thereto.

[0115] As ​ In some examples, a guide chute 2111 may be provided on the handle body 21 so that the operating rope can be connected to the pull wire handle 23 after passing around the guide chute 2111. During use, the guide chute 2111 can guide the operating rope to prevent the operating rope from getting entangled. However, this embodiment does not make any limitation thereto.

[0116] In some examples, the guide chute 2111 is formed at the end of the guide rod 211. Specifically, one end of the guide rod 211 penetrates through the handle body 21, and the other end is located outside the handle body 21, and the guide chute 2111 is formed at the end of the guide rod 211 located outside the handle body 21. Such a setting does not require a groove to be opened on the surface of the handle body 21, which is beneficial to simplifying the processing procedure and improving production efficiency. However, this embodiment does not make any limitation thereto.

[0117] In some examples, at least one connecting member 22 includes a first connecting member 221 and a second connecting member 222. The first connecting member 221 is disposed on the handle body 21 and is used to connect to the operating end of the endoscope. The second connecting member 222 is disposed on the handle body 21 and is used to connect to the forceps port of the endoscope. During use, the control handle 2 can first be connected to the forceps port of the endoscope through the second connecting member 222, and then be connected to the operating end of the endoscope through the first connecting member 221. Such a setting can improve the connection strength between the control handle 2 and the endoscope and prevent the control handle 2 from moving on the endoscope or falling off the endoscope during use. However, this embodiment does not make any limitation thereto.

[0118] In some examples, the first connecting member 221 is a snap ring, and the second connecting member 222 is a fixing nut. During use, the control handle 2 can be snap-fitted onto the operating end of the endoscope through the snap ring, and can be threadedly connected to the forceps port of the endoscope through the fixing nut. However, this embodiment does not make any limitation thereto. It should be noted that the snap ring is made of an elastic material, has an opening, and the opening can be opened and closed under its own elastic force.

[0119] As ​As shown, in some examples, the first connecting member 221 and the second connecting member 222 are provided at two ends of the handle body 21 relative to each other. For example, the first connecting member 221 and the second connecting member 222 may be respectively provided at two ends in the length direction of the handle body 21. However, this embodiment does not make any limitation thereto.

[0120] As ​ shown, in some examples, the first connecting member 221 is provided on the handle body 21 through the first spherical hinge 25, and the second connecting member 222 is connected to the handle body 21 through the second spherical hinge 26. When specifically setting, the first spherical hinge 25 includes a first ball head 251 and a first ball seat 252. The first ball head 251 is provided on the handle body 21, and the first ball seat 252 is provided on the first connecting member 221. The second spherical hinge 26 includes a second ball head 261 and a second ball seat 262. The second ball head 261 is provided on the second connecting member 222, and the second ball seat 262 is provided on the handle body 21. With such a setting, both the first connecting member 221 and the second connecting member 222 can rotate relative to the handle body 21 to adjust the connection direction of the first connecting member 221 and the second connecting member 222. Therefore, when the control handle 2 is connected to the endoscope, the direction of the wire pulling handle 23 can be adjusted, so as to adapt to the hand gesture of the operator and facilitate the operation of the operator. For example, as ​ and ​ shown, the connection angle of the second connecting member 222 before and after rotating relative to the handle body 21. However, this embodiment does not make any limitation thereto. In other embodiments, the first connecting member 221 is provided on the handle body 21 through a first rotating shaft mechanism, and the second connecting member 222 is provided on the handle body 21 through a second rotating shaft mechanism. It should be understood that the first rotating shaft mechanism and the second rotating shaft mechanism have the same structure, and both include a rotating shaft and a shaft sleeve sleeved on the rotating shaft.

[0121] In some examples, the opening directions of the ball seats of the first spherical hinge 25 and the second spherical hinge 26 are inconsistent with each other. For example, the opening direction of the ball seat of the first spherical hinge 25 is set to the right, and the opening direction of the ball seat of the second spherical hinge 26 is set downward, as ​ shown. With such a setting, it can be avoided that the first spherical hinge 25 and the second spherical hinge 26 are disconnected at the same time, so as to ensure the connection effect between the control handle 2 and the endoscope.

[0122] This embodiment does not make any limitation to the specific structure of the control handle 2. As long as the function of the control handle 2 in this embodiment can be realized, it can be used in cooperation with the stapler provided in this embodiment. In other embodiments, the stapler may also be considered to be used alone without cooperating with the control handle 2. The stapler may have a pull ring, which is provided at the end of the pull rope, and the pull rope is pulled by pulling the pull ring.

[0123] On the other hand, the present embodiment further provides a treatment device, which includes the above-mentioned stapler and the control handle 2, and the treatment device is used in cooperation with an endoscope. The stapler is fixed to the distal end of the endoscope. The control handle 2 is fixed to the operating end of the endoscope, the control handle 2 is connected to the driving member of the stapler, and the control handle 2 controls the driving member to control the advancement of the suture needle.

[0124] In the present embodiment, the treatment device may further include a hook forceps. The hook forceps performs tissue clamping actions or suture pulling actions at the distal end of the endoscope, and finally can clamp both ends of the suture to complete the knotting action of the suture. The hook forceps can enter through the forceps channel of the endoscope itself or through the forceps channel outside the endoscope, and no limitation is made here. In actual use, two hook forceps can be inserted simultaneously through two forceps channels for work, or only one hook forceps can be used for work. In the present embodiment, the front end of the hook forceps is a hook-shaped clamp.

[0125] On the other hand, the present embodiment further provides a treatment equipment, including the above-mentioned treatment device and an endoscope. The treatment device is used in cooperation with the endoscope, and the treatment device includes the above-mentioned stapler and the control handle 2.

[0126] Embodiment 2

[0127] This embodiment is basically the same as Embodiment 1 and its variations, except that: the structure of the movable member of the transmission mechanism 123' is different.

[0128] As ​ shown, in some examples, the movable member includes a rotating shaft 1232' and a reel 1233'. The rotating shaft 1232' is arranged in the main housing 11'. The reel 1233' is sleeved on the rotating shaft 1232' and can rotate circumferentially relative to the rotating shaft 1232'. The outer edge of the reel 1233' is universally connected to the second end of at least one transmission shaft 1231' (the second end of the second transmission shaft 1231b'). During use, the driving member is wound around the outer edge of the reel 1233'. When the driving member is tightened, the reel 1233' rotates clockwise or counterclockwise relative to the rotating shaft 1232', and the angle between the first transmission shaft 1231a' and the second transmission shaft 1231b', the angle between the second transmission shaft 1231b' and the reel 1233', and the position of the first end of the first transmission shaft 1231a' change, so that the engaging member 122' can reciprocate in the second chute 1122'. However, no limitation is made to this embodiment.

[0129] In some examples, when the spool 1233’ rotates one full circle (360°), the engaging member 122’ completes one needle insertion operation. For example, when the spool 1233’ rotates 180° in the clockwise or counterclockwise direction, the moving stroke of the engaging member 122’ is one-half of the second sliding groove 1122’. After the spool 1233’ continues to rotate 180° in the same direction, the moving stroke of the engaging member 122’ is one-half of the second sliding groove 1122’. That is, only after the spool 1233’ rotates one full circle can the engaging member 122’ move from one end of the second sliding groove 1122’ to the other end. However, this embodiment does not make any limitations in this regard. In other embodiments, when the spool 1233’ rotates multiple full circles or less than one full circle, the engaging member 122’ completes one needle insertion operation.

[0130] As ​ shown, in some examples, an annular groove 1233a’ is provided on the outer edge of the spool 1233’, and the driving member is wound around the annular groove 1233a’ of the spool 1233’. With this arrangement, it is possible to prevent the driving member from falling off the spool 1233’, thereby causing the driving function of the driving member to fail. However, this embodiment does not make any limitations in this regard.

[0131] In some examples, the reset member can be a volute spring 1234’. The volute spring 1234’ is disposed inside the spool 1233’ and wound around the rotating shaft 1232’. During use, the volute spring 1234’ is wound around the rotating shaft 1232’ when the spool 1233’ rotates circumferentially, and stores elastic potential energy. When the driving member is released, the volute spring 1234’ drives the spool 1233’ to rotate in the opposite direction under the action of its elastic potential energy, thereby driving the engaging member 122’ to reset or continue to advance through the transmission shaft. However, this embodiment does not make any limitations in this regard.

[0132] Compared with the stapler of Embodiment 1, the movable member of the stapler in this embodiment adopts the rotating shaft 1232’ and the spool 1233’, and there is no need to provide a telescopic space for the telescopic rod, so the size (height) of the stapler can be reduced, which is beneficial to reducing the damage to the internal tissues by the stapler and reducing the influence on the endoscopic field of view, and the operation is safer. However, this embodiment does not make any limitations in this regard.

[0133] To more clearly illustrate how the stapler provided by the embodiments of the present application performs the suturing action on the target suturing tissue, the following is combined with ​ for description. To clearly show the positions of the internal parts, not all components are drawn in the drawings. The “left side”, “middle part” and “right side” mentioned in the following description are all based on the ​ positional relationship in.

[0134] As ​As shown, when in the initial position, the operating rope is slack, the engaging member 122' is located on the left side of the second chute 1122', and the spring claws of the engaging member 122' are located in the first chute and are engaged in the grooves on both sides of the tail of the suture needle 13'. That is to say, there is a linkage relationship between the engaging member 122' and the suture needle 13'.

[0135] As ​ shown, pulling the operating rope, the operating rope pulls the reel 1233' to rotate in the clockwise direction, the second transmission shaft 1231b' rotates following the reel 1233', the angle between the first transmission shaft 1231a' and the second transmission shaft 1231b' and the position of the first end of the first transmission shaft 1231a' change, causing the engaging member 122' to move to the right side of the second chute 1122', thereby driving the suture needle 13' to advance. When the reel 1233' rotates 1 / 4 turn, the suture needle 13' advances 1 / 4.

[0136] As ​ shown, continue to pull the operating rope, the operating rope pulls the reel 1233' to continue rotating in the clockwise direction. When the reel 1233' rotates another 1 / 4 turn, that is, when the reel 1233' rotates a total of 2 / 4 turns, the first end of the first transmission shaft 1231a' and the engaging member 122' are located in the middle of the second chute 1122', and the suture needle 13' advances 2 / 4.

[0137] As ​ shown, continue to pull the operating rope, the operating rope pulls the reel 1233' to continue rotating in the clockwise direction. When the reel 1233' rotates another 1 / 4 turn, that is, when the reel 1233' rotates a total of 3 / 4 turns, the suture needle 13' advances 3 / 4.

[0138] As ​ shown, continue to pull the operating rope, the operating rope pulls the reel 1233' to continue rotating in the clockwise direction. When the reel 1233' rotates another 1 / 4 turn, that is, when the reel 1233' rotates a total of 4 / 4 turns, the first end of the first transmission shaft 1231a' and the engaging member 122' are located on the right side of the second chute 1122', and the suture needle 13' advances 4 / 4, that is, one needle insertion is completed.

[0139] As ​As shown, when the operating rope is released, the acting force of the operating rope on the reel 1233' disappears, and the volute spring 1234' begins to return to its relaxed state, driving the reel 1233' to rotate counterclockwise. The angle between the first transmission shaft 1231a' and the second transmission shaft 1231b' and the position of the first end of the second transmission shaft 1231b' change, causing the engaging member 122' to move to the left side of the second chute 1122'. When the reel 1233' rotates 1 / 4 of a turn, the moving distance of the engaging member 122' is 1 / 4 of the second chute 1122'.

[0140] As ​ shown, when the operating rope is further released, the reel 1233' continues to rotate counterclockwise, and the engaging member 122' continues to move to the left side of the second chute 1122'. When the reel 1233' rotates another 1 / 4 of a turn, that is, when the reel 1233' has rotated a total of 2 / 4 of a turn, the moving distance of the engaging member 122' is 2 / 4 of the second chute 1122', that is, the engaging member 122' is located in the middle of the second chute 1122'.

[0141] As ​ shown, when the operating rope is further released, the reel 1233' continues to rotate counterclockwise, and the engaging member 122' continues to move to the left side of the second chute 1122'. When the reel 1233' rotates another 1 / 4 of a turn, that is, when the reel 1233' has rotated a total of 3 / 4 of a turn, the moving distance of the engaging member 122' is 3 / 4 of the second chute 1122'.

[0142] As ​ shown, when the operating rope is completely released, the reel 1233' continues to rotate counterclockwise, and the engaging member 122' continues to move to the left side of the second chute 1122'. When the operating rope is completely released, the reel 1233' rotates another 1 / 4 of a turn, that is, when the reel 1233' has rotated a total of 4 / 4 of a turn, the moving distance of the engaging member 122' is 4 / 4 of the second chute 1122', that is, the engaging member 122' returns to the left side of the second chute 1122'.

[0143] After that, when the operating rope is pulled again, when the reel 1233' rotates one full turn clockwise, the suture needle 13' returns to its initial position, that is, one needle exit is completed.

[0144] The above two operations of pulling and releasing the operating rope achieve one suture of the suture needle 13'. By repeating the above operations, suture of the target suture tissue or knotting of the suture can be performed. However, the number of times of pulling the rope required for one suture is not limited in this embodiment. It should be understood that in other embodiments, the number of times of pulling the rope required for one suture can be adjusted by adjusting the diameter of the reel 1233' and the groove spacing on the suture needle 13'.

[0145] One or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this specification shall be included within the protection scope of this application.

[0146] The above are only the specific implementation manners of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of changes or substitutions, which should all be covered within the protection scope of this application.

Claims

1. A stapler, characterized in that, The stapler includes: A main housing; A suture needle slidably disposed in the main housing, one end of the suture needle being connected to a suture thread and the other end being a tip; A needle driving assembly disposed in the main housing and including a driving member and an engaging member, the engaging member being in a separable engaging relationship with the suture needle, the driving member acting on the engaged engaging member and the suture needle to control the advancement of the suture needle; Wherein, the needle driving assembly further includes a transmission mechanism located outside the main housing and connected between the driving member and the engaging member, the transmission mechanism being capable of driving the engaging member to reciprocate along the movement trajectory of the suture needle under the action of the driving member.

2. The stapler according to claim 1, characterized in that, The transmission mechanism is a universal joint transmission mechanism.

3. The stapler according to claim 2, wherein The transmission mechanism includes at least one transmission shaft, a movable member and a reset member; a first end of the at least one transmission shaft is in universal connection with the engaging member, and a second end of the at least one transmission shaft is in universal connection with the movable member; the movable member is disposed in the main housing and connected to the driving member, and under the action of the driving member, the movable member moves relative to the main housing to change the position of the second end of the at least one transmission shaft; the reset member is disposed on the movable member, and when the action of the driving member disappears, the reset member is used to drive the movable member to reset.

4. The stapler according to claim 3, wherein The movable member includes a telescopic rod, a first end of the telescopic rod being fixedly connected to the main housing, and a second end of the telescopic rod being in universal connection with the second end of the at least one transmission shaft, the driving member being connected to the second end of the telescopic rod.

5. The stapler according to claim 4, characterized in that, The reset member is a compression spring disposed in the telescopic rod and compressed when the telescopic rod contracts.

6. The stapler according to claim 3, wherein The movable member includes a rotating shaft and a reel, the rotating shaft being disposed in the main housing, the reel being sleeved on the rotating shaft and capable of rotating circumferentially relative to the rotating shaft, an outer edge of the reel being in universal connection with the second end of the at least one transmission shaft, the driving member being wound around the outer edge of the reel.

7. The stapler according to claim 6, wherein, An annular groove is provided on the outer edge of the reel, and the driving member is wound in the annular groove of the reel.

8. The stapler according to claim 6, wherein, The reset member is a torsion spring disposed in the reel and wound around the outside of the rotating shaft, the torsion spring being wound around the rotating shaft when the reel rotates circumferentially.

9. A treatment device, which is used in cooperation with an endoscope, is characterized in that The treatment device includes: A stapler fixed to the tip of the endoscope, the stapler including: A main housing; A suture needle slidably disposed in the main housing, one end of the suture needle being connected to a suture thread and the other end being a tip; A needle driving assembly disposed in the main housing and including a driving member and an engaging member, the engaging member being in a separable engaging relationship with the suture needle, the driving member acting on the engaged engaging member and the suture needle to control the advancement of the suture needle; Wherein, the needle driving assembly further includes a transmission mechanism located outside the main housing and connected between the driving member and the engaging member, the transmission mechanism being capable of driving the engaging member to reciprocate along the movement trajectory of the suture needle under the action of the driving member; The control handle is fixed to the operating end of the endoscope. The control handle is connected to the needle insertion assembly of the stapler, and the control handle controls the needle insertion assembly to control the advancement of the suture needle.

10. A treatment device, characterized in that, Comprising: An endoscope; A stapler fixed to the distal end of the endoscope. The stapler includes: A main housing; A suture needle slidably disposed in the main housing. One end of the suture needle is connected with a suture thread, and the other end is a tip; A needle insertion assembly disposed in the main housing and including a driving member and an engaging member. The engaging member has a separable engaging relationship with the suture needle, and the driving member acts on the engaged engaging member and the suture needle to control the advancement of the suture needle; Wherein, the needle insertion assembly further includes a transmission mechanism located outside the main housing and connected between the driving member and the engaging member. The transmission mechanism can drive the engaging member to reciprocate along the movement track of the suture needle under the action of the driving member; The control handle is fixed to the operating end of the endoscope. The control handle is connected to the needle insertion assembly of the stapler, and the control handle controls the needle insertion assembly to control the advancement of the suture needle.

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