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 is arranged on the main shell and 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 and controls the suture needle to advance; wherein the clamping piece comprises a sliding block and an elastic claw, the elastic claw has elasticity and is arranged on the sliding block, the sliding block is arranged on the main shell in a sliding and rotatable mode and has a first posture and a second posture which rotate relative to the main shell, in the first posture, the elastic claw and the suture needle are clamped, and in the second posture, the elastic claw and the suture needle are unclamped. By means of the arrangement, the number of parts can be reduced, the structure of the clamping piece is simplified, production cost is reduced, and production efficiency is improved.

Description

Technical Field

[0001] This application relates to treatment devices, and more particularly, to a stapler, a treatment device having a 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, soft endoscopes must be used to perform surgery through natural cavities. Therefore, natural cavity soft endoscope surgery 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, natural cavity endoscopic surgery 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 for 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 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 cavities. Although the latter can suture larger wounds or other target suture tissues, this system not only has many accessories and complicated operations, but also the suturing depends on at least three metal spiral nails, and the knotting still depends on clips. The hard and sharp spiral nails that rotate through the tissue for suturing remain in the body, making it difficult to rule out the possibility of secondary injuries in the digestive system, and even the urinary and reproductive systems, such as perforation, intestinal leakage, and adhesion. Coupled with the accumulation of 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 whole layer; for the separated tissue that penetrates the whole layer, due to the lack of fixation or support at the separated edge, it is very 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 needle insertion teeth of the needle insertion component have many parts and a complex structure, resulting in high production costs and low production efficiency. Utility Model Content

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

[0007] A main housing;

[0008] A suture needle, slidably arranged 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, arranged in the main housing and including a driving part and a clamping part, the clamping part has a separable clamping relationship with the suture needle, and the driving part acts on the clamped clamping part and the suture needle to control the forward movement of the suture needle;

[0010] Among them, the clamping part includes a slider and a spring claw, the spring claw has elasticity and is arranged on the slider, the slider is slidably and rotatably arranged in the main housing, and has a first posture and a second posture of rotating relative to the main housing. In the first posture, the spring claw and the suture needle are clamped, and in the second posture, the spring claw and the suture needle are released from clamping.

[0011] In an optional implementation manner, the slider rotates relative to the main housing in different directions to perform posture conversion.

[0012] In an optional implementation manner, the slider rotates relative to the main housing along a first direction to the first posture, and the slider rotates relative to the main housing along a second direction to the second posture, and the first direction and the second direction are opposite directions.

[0013] In an optional implementation manner, the slider cooperates with a first transverse rib arranged on the main housing to make the slider rotate relative to the main housing along the first direction; the slider cooperates with a second transverse rib arranged on the main housing to make the slider rotate relative to the main housing along the second direction.

[0014] In an optional implementation manner, the spring claw cooperates with a limiting part arranged on the main housing to limit the rotation of the slider relative to the main housing along the first direction during reset.

[0015] In an optional implementation manner, the spring claw includes a first spring claw and a second spring claw, and the first spring claw and the second spring claw are respectively clamped with different clamping parts arranged on the suture needle.

[0016] In an alternative embodiment, the first resilient claw and the second resilient claw are respectively engaged with the engaging portions provided on both sides of the suture needle.

[0017] In an alternative embodiment, both the first resilient claw and the second resilient claw are plural.

[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 with 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 an 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 with a suture thread, and the other end is a tip;

[0030] A needle driving 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. The driving member acts on the engaged engaging member and the suture needle to control the advancement of the suture needle;

[0031] Among them, the needle insertion component further includes a transmission mechanism, which 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] A control handle is fixed to the operating end of the endoscope. The control handle is connected to the needle insertion component of the stapler, and the control handle controls the needle insertion component to control the advancement of the suture needle.

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

[0034] The stapler, the treatment device with a stapler and the treatment equipment provided by the embodiments of the present application. The engaging member includes a slider and an elastic pawl provided on the slider. By controlling the rotation of the slider relative to the main housing, the pawl can be engaged or disengaged with the suture needle. Such a setting can reduce the number of parts and simplify the structure of the engaging member, thereby facilitating the reduction of production costs and improving production efficiency.

[0035] To make the above objects, features, and advantages of the present application more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, the detailed description is as follows. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0037] Figure 2 and Figure 3 Shows Figure 1 A schematic structural diagram from another perspective;

[0038] Figure 4 Shows Figure 1 An exploded schematic diagram of;

[0039] Figure 5 Shows Figure 1 An assembly schematic diagram of the suture needle and the needle insertion component in;

[0040] Figure 6 Shows Figure 1 A schematic structural diagram of the suture needle in;

[0041] Figure 7 Shows Figure 6 A schematic structural diagram from another perspective;

[0042] Figures 8 to 16 Shows Figure 1 Schematic diagrams of different states of the suture needle and the needle insertion component during the actuation process in;

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

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

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

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

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

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

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

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

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

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

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

[0054] Figure 28 shows Figure 25 an assembly schematic diagram of a suture needle and a needle driving assembly in;

[0055] Figures 29 to 37 shows Figure 25 schematic diagrams of different states of a suture needle and a needle driving assembly during actuation in;

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

[0057] Figure 39 shows Figure 38 a schematic structural diagram from another perspective;

[0058] Figure 40 shows Figure 38 an assembly schematic diagram of

[0059] Figure 41 shows Figure 38 a disassembly schematic diagram of

[0060] Figure 42 shows Figure 38 a schematic diagram when the drawstring handle is in the first position in

[0061] Figure 43 shows Figure 38 a schematic diagram when the drawstring handle is in the second position in

[0062] Figure 44 shows Figure 38 a schematic diagram after the connection direction of the second connecting member in changes. Specific Embodiment

[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 in this embodiment can not only be used in cooperation with an endoscope, but can also be used in cooperation with other devices capable of realizing steering guidance.

[0064] Embodiment 1

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

[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 suture needle 13 and the needle 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 arranged 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 connecting 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, 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 contact of the stapler 1 with the internal tissue.

[0069] In some examples, the outer surfaces of the first housing 111 and the second housing 112 are both smooth surfaces without sharp corners. Such an arrangement makes the stapler 1 as little as possible affect the field of view of the tip of the endoscope, facilitates the suturing operation in the body, and also reduces the damage caused by the contact with the internal tissue. In addition, the outer surface is arc-shaped, which also avoids damaging the internal tissue by the edges of the housing during operation. However, this embodiment does not make any limitation on this.

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

[0071] Such as Figure 4As 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. Specifically, 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 on this.

[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 on this. 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. With such an arrangement, the height of the second housing 112 can be reduced, which is beneficial to expanding the viewing field of the endoscope.

[0073] As Figure 18 and Figure 20 shown, in some examples, the second housing 112 is provided with a first reverse chute 1126 and a second reverse chute 1127. Specifically, 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 arranged on the side wall of the first slit, and the second reverse chute 1127 is arranged 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 on this.

[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 recess 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 thereto. 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. With this setting, it is possible to avoid the groove being too deep and causing the strength of the suture needle 13 to decrease, thereby causing the suture needle 13 to break. However, this embodiment does not make any limitation thereto.

[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 be engaged 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 towards the tail of the suture needle 13. With this setting, barbs can be formed on the surface of the suture needle 13 to play a role in restricting the suture needle 13 from retracting during suturing. Compared with setting an anti-retraction needle assembly between the suture needle 13 and the main housing 11, this anti-retraction design can reduce the number of parts of the stapler 1, which is beneficial to cost savings, improving the assembly efficiency, and reducing risk links. In addition, as the number of parts decreases, the resistance during the movement of the suture needle 13 will also decrease, making it easier for the operator to operate. However, this embodiment does not make any limitation thereto.

[0079] As Figure 7 shown, in some examples, the engaging portions 131 are provided on opposite sides of the suture needle 13. With this setting, the anti-retraction effect of the suture needle 13 can be improved, and when the two sides of the suture needle 13 are respectively engaged with the engaging member 122, the suture needle 13 is more evenly stressed, making the suture needle 13 move more smoothly. However, this embodiment does not make any limitation thereto. In other embodiments, the engaging portion 131 can 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 portion 131 is formed by a recess 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. With this setting, it is possible to avoid the local dimension of the suture needle 13 being too small, which is beneficial to ensuring the strength of the suture needle 13. However, this embodiment does not make any limitation thereto.

[0081] In some examples, the engaging member 122 can change its posture to engage or disengage with 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 resilient claw 1222. The resilient claw 1222 is elastic and disposed on the slider 1221. The slider 1221 is slidably and rotatably disposed in 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 resilient claw 1222 and the suture needle 13 are engaged. In the second posture, the resilient claw 1222 and the suture needle 13 are disengaged. With such a setting, it is possible to achieve the engagement or disengagement between 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 not only enables firm engagement, but also simplifies the structure of the engaging member 122, which is beneficial to reducing production costs, improving production efficiency, and reducing risk points during use. In addition, since the engagement or disengagement between 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 suture needle 13 from retracting when the engaging member 122 is reset. 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 posture conversion. Specifically, the slider 1221 rotates relative to the main housing 11 in a first direction to the first posture, and the slider 1221 rotates relative to the main housing 11 in a second direction to the second posture. 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 in this regard.

[0084] As Figures 23 - 24As shown, in some examples, the slider 1221 cooperates with the first transverse rib 1123 provided on the main housing 11 so that the slider 1221 can rotate relative to the main housing 11 in the first direction to the first posture. When specifically arranged, the first transverse rib 1123 can be a convex rib protruding from the inner surface of the second chute 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 chute), the first transverse rib 1123 can limit the slider 1221 locally (such as the upper protrusion of the slider 1221), so that the slider 1221 rotates relative to the main housing 11 in the first direction to the first posture. However, this embodiment does not make any limitation on this.

[0085] As Figures 21 - 22 As shown, in some examples, the slider 1221 cooperates with the second transverse rib 1124 provided on the main housing 11 so that the slider 1221 can rotate relative to the main housing 11 in the second direction to the second posture. When specifically arranged, the second transverse rib 1124 can be a convex rib protruding from the inner surface of the second chute 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 rib 1124 can limit the slider 1221 locally (such as the upper protrusion of the slider 1221), so that the slider 1221 rotates relative to the main housing 11 in the second direction to the second posture. However, this embodiment does not make any limitation on this.

[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 on this. 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 so as to limit the slider 1221 from rotating relative to the main housing 11 in the first direction during reset. When specifically arranged, 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 chute 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. With this setting, it is possible to 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 on this.

[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. 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. Specifically, 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 on this.

[0089] As Figure 4 shown, in some examples, both the first elastic claw 1222a and the second elastic claw 1222b may be multiple. Specifically, multiple first elastic claws 1222a may engage with multiple engaging portions 131 located outside the suture needle 13, and multiple second elastic claws 1222b may engage with multiple engaging portions 131 located inside the suture needle 13. With this setting, it is beneficial to disperse stress and improve the stability of the suture needle 13. However, this embodiment does not make any limitation on this.

[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 is led out through the forceps channel tube of the endoscope or an external tube attached to the outside of the endoscope. 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 second chute 1122 in the needle insertion direction, thereby realizing the needle insertion of the suture needle 13. However, this embodiment does not make any limitation on this. 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 with the engaging member 122, in this embodiment, the driving member and the engaging member 122 are connected by 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 provided on the outer surface of the main housing 11. With this setting, the length of the operating rope 121 exposed in the organism can be shortened, the turning points of the traveling of the operating rope can be reduced, so that the interference of other operating instruments and the internal tissues on the operating rope 121 can be reduced, which is beneficial to reducing the resistance of the operating rope 121 and reducing the risk of the operating rope 121 being wound.

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

[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 in 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. With this setting, the transmission of the transmission mechanism 123 can be realized. However, this embodiment does not make any limitation on this.

[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 transmission shaft 1231 may include a first transmission shaft 1231a and a second transmission shaft 1231b. The first end of the first transmission shaft 1231a is connected to the engaging member 122, the second end of the first transmission shaft 1231a is connected to the first end of the second transmission shaft 1231b, and the second end of the second transmission shaft 1231b is connected to the movable member through spherical hinges. When specifically arranged, the angles between the second transmission shaft 1231b and the movable member and between the second transmission shaft 1231b and the first transmission shaft 1231a can both change, thereby changing the position of the first end of the first transmission shaft 1231a. However, this embodiment does not make any limitation thereto.

[0095] In some examples, ball heads may be respectively provided at the first end and the second end of the first transmission shaft 1231a, and at the second end of the second transmission shaft 1231b. Ball seats may be respectively provided at the movable end of the movable member, the first end of the second transmission 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 thereto.

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

[0097] [[ID=X]]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 movement, 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 reciprocating movement, 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 movements or less than one telescopic movement, the engaging member 122 completes one needle insertion operation.

[0099] As [[ID=,7]] Figures 4 to 5 shown, in some examples, the reset member can be a compression spring 1233, and the compression spring 1233 is arranged 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 silica gel that has a certain restoring force or elastic force.

[0100] To more clearly elaborate on how the stapler 1 provided in the embodiment of the present application performs the suturing action on the target suturing tissue, the following is combined with Figures 8 - 16is described. 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 chute 1122, and the spring claws 1222 of the engaging member 122 are located in the first chute 1121 and are engaged in the grooves on both sides of the tail of the suture needle 13. That is, 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, 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 chute 1122, thereby driving the suture needle 13 forward. 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 chute 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. The telescopic rod 1232 gradually extends. During the extension process of the telescopic rod 1232, the first reverse inclined groove 1126 limits the spring claws 1222, preventing the engaging member 122 from moving to the left side of the second chute 1122, causing the engaging member 122 to continue moving to the right side of the second chute 1122, thereby continuing to drive the suture needle 13 forward.

[0104] As Figure 11 shown, when the operating rope 121 is continuously released, the engaging member 122 continues to drive the suture needle 13 forward. When the engaging member 122 approaches the right side of the second chute 1122, the second transverse rib 1124 provided on the right side of the second chute 1122 will limit the engaging member 122, causing the engaging member 122 to rotate 90° counterclockwise relative to the second housing 1122. 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, 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 chute 1122. That is, 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 to make the telescopic rod 1232 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 provided 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 engages in the grooves on both sides of the tip of the suture needle 13. That is, 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, one needle exit is completed.

[0110] The above three times of pulling and loosening the operating rope 121 achieve one suture of the suture needle 13. Repeat the above operations to suture the target suture tissue or tie a knot for the suture thread. However, the number of times of pulling the rope required for one suture in this embodiment is not limited. 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 amount of expansion and contraction 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, tightening 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 tightened state. As Figure 43 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, and 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 affected by 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 tightened. When the wire-pulling handle 23 reaches the first position, the operating rope 121 is in a tightened 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 tightening 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 up the operating rope 121, the structure of the control handle 2 can be greatly simplified, which is beneficial to simplifying the assembly procedure and reducing the production cost. However, this embodiment does not make any limitation in this regard.

[0113] As Figure 38 , Figure 40 and Figure 41 shown, in some examples, a guide rod 211 is provided on the handle body 21, and 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 and thus facilitating the operation of the operator. However, this embodiment does not make any limitation in this regard.

[0114] As Figure 40As 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 Figures 38 to 13 In some examples, a guide chute 2111 can be provided on the handle body 21 so that the operating rope can be wound around the guide chute 2111 and then connected to the pull wire handle 23. During use, the guide chute 2111 can guide the operating rope to avoid winding of the operating rope. 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. The guide chute 2111 is formed at the end of the guide rod 211 located outside the handle body 21. With such a setting, there is no need to open a groove on the surface of the handle body 21, which is beneficial to simplifying the processing procedure and improving the 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 for connecting to the operating end of the endoscope. The second connecting member 222 is disposed on the handle body 21 and is used for connecting to the forceps port of the endoscope. During use, the control handle 2 can be first connected to the forceps port of the endoscope through the second connecting member 222, and then connected to the operating end of the endoscope through the first connecting member 221. With such a setting, the connection strength between the control handle 2 and the endoscope can be improved, and it can be avoided that the control handle 2 moves on the endoscope or falls 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 to 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 Figure 39As shown, in some examples, the first connecting member 221 and the second connecting member 222 are provided at both ends of the handle body 21 relative to each other. For example, the first connecting member 221 and the second connecting member 222 can be respectively provided at both ends in the length direction of the handle body 21. However, this embodiment does not make any limitation thereto.

[0120] As Figures 38 to 41 shown, in some examples, the first connecting member 221 is disposed 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 disposed on the handle body 21, and the first ball seat 252 is disposed 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 disposed on the second connecting member 222, and the second ball seat 262 is disposed 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 posture of the operator and facilitate the operation of the operator. For example, as Figure 43 and Figure 44 shown, the connection angles 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 disposed on the handle body 21 through a first rotating shaft mechanism, and the second connecting member 222 is disposed 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 not consistent 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 Figure 38 shown. With such a setting, it can be avoided that the first spherical hinge 25 and the second spherical hinge 26 are disconnected simultaneously, 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 can also be considered to be used alone without cooperating with the control handle 2. The stapler can have a pull ring, which is disposed at the end of the pull rope, and the pull rope is pulled by pulling the pull ring.

[0123] In another aspect, 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 can enter 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 to work, or only one hook forceps can be used to work. In the present embodiment, the front end of the hook forceps is a hook-shaped forceps.

[0125] In another aspect, 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 Two

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

[0128] As Figures 25 to 37 shown, in some examples, the moving part 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, after 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 limitation in this regard. In other embodiments, when the spool 1233' rotates multiple circles or less than one circle, the engaging member 122' completes one needle insertion operation.

[0130] As Figure 26 shown, in some examples, an annular groove 1233a' is provided on the outer edge of the spool 1233', and the driving member is wound in 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 limitation in this regard.

[0131] In some examples, the reset member can be a volute spring 1234', and the volute spring 1234' is arranged 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 limitation 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 limitation 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 Figures 29 - 37 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 Figures 29 - 37 positional relationship in.

[0134] As Figure 29As 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, there is a linkage relationship between the engaging member 122' and the suture needle 13'.

[0135] As Figure 30 shown, when the operating rope is pulled, 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 Figure 31 shown, when the operating rope is continuously pulled, 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 Figure 32 shown, when the operating rope is continuously pulled, 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 Figure 33 shown, when the operating rope is continuously pulled, 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 Figure 34As shown, the operating rope is loosened, the force of the operating rope on the reel 1233' disappears, the spiral spring 1234' begins to relax again, and drives 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, so that the engaging member 122' moves to the left side of the second slide groove 1122'. When the reel 1233' rotates 1 / 4 of a circle, the moving stroke of the engaging member 122' is 1 / 4 of the second slide groove 1122'.

[0140] like Figure 35 As shown, the operating rope continues to be loosened, the reel 1233' continues to rotate counterclockwise, and the engaging member 122' continues to move to the left side of the second slide groove 1122'. When the reel 1233' rotates another 1 / 4 circle, that is, when the reel 1233' rotates a total of 2 / 4 circles, the moving stroke of the engaging member 122' is 2 / 4 of the second slide groove 1122', that is, the engaging member 122' is located in the middle of the second slide groove 1122'.

[0141] like Figure 36 As shown, the operating rope continues to be loosened, the reel 1233' continues to rotate counterclockwise, and the engaging member 122' continues to move to the left side of the second slide groove 1122'. When the reel 1233' rotates another 1 / 4 circle, that is, when the reel 1233' rotates a total of 3 / 4 circles, the moving stroke of the engaging member 122' is 3 / 4 of the second slide groove 1122'.

[0142] like Figure 37 As shown, the operating rope is completely loosened, the reel 1233' continues to rotate counterclockwise, and the engaging member 122' continues to move to the left side of the second slide groove 1122'. When the operating rope is completely loosened, the reel 1233' rotates another 1 / 4 circle, that is, when the reel 1233' rotates a total of 4 / 4 circles, the moving stroke of the engaging member 122' is 4 / 4 of the second slide groove 1122', that is, the engaging member 122' returns to the left side of the second slide groove 1122'.

[0143] Afterwards, the operating rope is pulled again, and when the reel 1233 ′ rotates one circle in the clockwise direction, the suture needle 13 ′ returns to the initial position, that is, one needle removal is completed.

[0144] The above two pulls and releases of the operating cord complete a single suture with the suture needle 13'. Repeating these operations completes the suturing of the target tissue or the tying of the suture thread. However, this embodiment does not impose any restrictions on the number of pulls required for a single suture. It should be understood that in other embodiments, the number of pulls required for a single suture can be adjusted by adjusting the diameter of the reel 1233' and the spacing of the grooves 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 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 in 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 comprises: main housing; A suturing needle is slidably mounted on the main housing, one end of the suturing needle is connected to a suture thread, and the other end is a pointed end; A needle insertion assembly is provided in the main housing and includes a driving member and a clamping member, wherein the clamping member is in a detachable clamping relationship with the suturing needle, and the driving member acts on the clamping member and the suturing needle to control the advancement of the suturing needle; In which, the engaging part includes a slider and a spring claw, the spring claw is elastic and is arranged on the slider, the slider is slidably and rotatably arranged on the main shell, and has a first posture and a second posture that rotate relative to the main shell. In the first posture, the spring claw and the suture needle are engaged, and in the second posture, the spring claw and the suture needle are released.

2. The stapler according to claim 1, wherein: The slider rotates in different directions relative to the main housing to perform posture conversion.

3. The stapler according to claim 2, characterized in that The slider rotates relative to the main housing along a first direction to a first posture, and the slider rotates relative to the main housing along a second direction to a second posture, wherein the first direction and the second direction are opposite directions.

4. The stapler according to claim 3, characterized in that The slider cooperates with a first transverse rib provided on the main housing so that the slider rotates relative to the main housing along the first direction; the slider cooperates with a second transverse rib provided on the main housing so that the slider rotates relative to the main housing along the second direction.

5. The stapler according to claim 4, characterized in that: The elastic claw cooperates with a limiting portion provided on the main housing to limit the slider from rotating relative to the main housing along the first direction when resetting.

6. The stapler according to claim 1, characterized in that The elastic claw includes a first elastic claw and a second elastic claw, and the first elastic claw and the second elastic claw are respectively engaged with different engaging parts provided on the suture needle.

7. The stapler according to claim 6, characterized in that: The first elastic claw and the second elastic claw are respectively engaged with the engaging parts arranged on both sides of the suturing needle.

8. The stapler according to claim 7, characterized in that There are multiple first spring claws and multiple second spring claws.

9. A therapeutic device, used in conjunction with an endoscope, characterized in that: The therapeutic device comprises: A stapler is fixed to the distal end of the endoscope, and the stapler comprises: main housing; a suturing needle slidably disposed on the main housing, wherein one end of the suturing needle is connected to a suture thread and the other end is a pointed end; A needle insertion assembly is provided in the main housing and includes a driving member and a clamping member, wherein the clamping member is in a detachable clamping relationship with the suturing needle, and the driving member acts on the clamping member and the suturing needle to control the advancement of the suturing needle; Wherein, the needle insertion assembly further includes a transmission mechanism, which is located outside the main housing and connected between the driving member and the engaging member. Under the action of the driving member, the transmission mechanism can drive the engaging member to reciprocate along the motion trajectory of the suture needle; A manipulation handle is fixed to the operating end of the endoscope, the manipulation handle is connected to the needle insertion assembly of the suturing device, and the manipulation handle controls the needle insertion assembly to control the advancement of the suturing needle.

10. A therapeutic device, characterized in that include: Endoscope; A stapler is fixed to the distal end of the endoscope, and the stapler comprises: main housing; a suturing needle slidably disposed on the main housing, wherein one end of the suturing needle is connected to a suture thread and the other end is a pointed end; A needle insertion assembly is provided in the main housing and includes a driving member and a clamping member, wherein the clamping member is in a detachable clamping relationship with the suturing needle, and the driving member acts on the clamping member and the suturing needle to control the advancement of the suturing needle; Wherein, the needle insertion assembly further includes a transmission mechanism, which is located outside the main housing and connected between the driving member and the engaging member. Under the action of the driving member, the transmission mechanism can drive the engaging member to reciprocate along the motion trajectory of the suture needle; A manipulation handle is fixed to the operating end of the endoscope, the manipulation handle is connected to the needle insertion assembly of the suturing device, and the manipulation handle controls the needle insertion assembly to control the advancement of the suturing needle.

Images