Minimally invasive integrated tissue lumen ligation system

Abstract

The present application relates to a kind of minimally invasive integrated tissue cavity ligation system, including handle, sheath tube, clamp, knotting rope cover, first catheter, pull wire operating mechanism and wire cutting operating mechanism, one end of sheath tube is connected with handle, the other end is far away, clamp passes through sheath tube, its clamp head extends the other end outside of sheath tube, its operating part is located in handle or outside handle, first catheter is placed in sheath tube, one end of which is provided with rope cover cavity seat, the other end passes through one end of first catheter and is connected with first driving part, knot of knotting rope cover is installed in rope cover cavity seat, its rope ring is covered outside the clamp head of clamp, the rope head of one end of knotting rope cover that can be pulled passes through along the long axis of first catheter, and is connected with pull wire operating mechanism, one end of first catheter is equipped with wire cutter that can be moved towards its interior telescopic, pull wire operating mechanism is connected with wire cutter from inside sheath tube.Advantages: effectively avoid the problem of surgical risk caused by repeated entry of instrument into body during operation, greatly reduce the difficulty of operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of minimally invasive surgery, in particular to a minimally invasive integrated tissue lumen ligation system. BACKGROUND

[0002] At present, the left atrial appendage is mainly occluded by intracardiac intervention, such as PLAATO system, Amplatzer system, Watchman system and LARIAT system, pericardial endoscope, lasso device and heart left atrial appendage closure system. The intracardiac intervention directly installs the occlusion device in the left atrial appendage, which has certain risks in safety, such as easy to cause secondary thrombosis. The LARIAT system and the heart left atrial appendage closure system can effectively reduce the potential risk of implant by using auricular ligation to occlude the left atrial appendage, but the LARIAT system reaches the left atrial appendage tip through the right atrium through the atrial septum by one end, and the other end passes through the pericardium and is attached to the endocardial magnet to play the role of left atrial appendage positioning. The process of the two passages is complex, and the whole set of instruments includes balloon assembly, loop assembly and cutting line assembly. During the operation process, the operating instruments need to be replaced constantly, and the technical requirements for the operator are high. The heart left atrial appendage closure system does not pass through the femoral vein into the atrium, but uses the clip assembly and the loop assembly to enter the pericardium by pericardial puncture, which not only causes multiple injuries to the pericardium, but also uses the split type operation of the instrument. The surgical instruments need to be in and out of the pericardium many times, which brings certain risks to the operation, and the operation skill of the operator is required. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a minimally invasive integrated tissue lumen ligation system, which effectively overcomes the defects of the prior art.

[0004] The technical solution of the present application to solve the above technical problems is as follows:

[0005] The micro-invasive integrated tissue cavity ligation system comprises a handle, a sheath tube, a clamp, a knotting rope sleeve, a first catheter, a pull wire operating mechanism and a cutting wire operating mechanism, one end of the sheath tube is connected with the handle, the other end is away from the handle, the clamp passes through the sheath tube, the clamp head of the clamp is outside the other end of the sheath tube, the operating part of the clamp is in the handle or outside the handle, the first catheter is arranged in the sheath tube, one end of the first catheter is provided with a rope sleeve cavity seat, the other end of the first catheter passes through one end of the first catheter and is connected with a first driving piece, the first driving piece is used for driving the first catheter to move along the long axis of the sheath tube, the knot of the knotting rope sleeve is arranged in the rope sleeve cavity seat, the rope loop of the knotting rope sleeve is arranged outside the clamp head of the clamp, one end of the knotting rope sleeve which can be pulled passes through the long axis of the first catheter and is connected with the pull wire operating mechanism, one end of the first catheter is provided with a cutting wire which can be telescopically moved towards the inside of the first catheter, the pull wire operating mechanism is connected with the cutting wire in the sheath tube and is used for driving the cutting wire to telescopically move towards the inside of the first catheter to cut off the one end of the knotting rope sleeve.

[0006] On the basis of the above technical scheme, the application can be further improved as follows.

[0007] Further, the handle is a gun-shaped handle, and one end of the sheath tube is connected with the gun head of the gun-shaped handle.

[0008] Further, one side of the handle is provided with a first sliding groove extending along the long axis of the sheath tube, and the first driving piece is a first shifting block passing through the first sliding groove, and the first shifting block is fixedly connected with the other end of the first catheter.

[0009] Further, the cutting wire is a cutting knife, a knife hole is formed in the side wall of one end of the first catheter along the radial direction, the cutting knife is telescopically arranged in the knife hole through an elastic piece, the cutting edge of the cutting knife is located in the first catheter, an inner wall of the side of the first catheter away from the knife hole is provided with a knife seat matched with the cutting knife, the cutting wire operating mechanism comprises a second catheter and a second driving piece, the second catheter is sleeved outside the first catheter, one end of the second catheter is close to the cutting knife, the other end of the second catheter is connected with the second driving piece, one end of the cutting knife exposed outside the knife hole is provided with an inclined surface, the inclined surface extends obliquely towards one end of the second catheter, and the second driving piece is used for driving the second catheter to move along the long axis of the first catheter and to press the inclined surface of the cutting knife in the process of moving towards the cutting knife, so that the cutting knife telescopically moves towards the inside of the first catheter and approaches the knife seat, and the elastic piece is synchronously stretched, so that the one end of the knotting rope sleeve which can be pulled is cut off, and in the process of moving of the second catheter away from the cutting knife, the elastic piece drives the cutting knife to telescopically move back and to be away from the knife seat.

[0010] Further, the other side of the handle is provided with a second sliding groove extending along the long axis of the sheath, and the second driving member is a second pushing block penetrating through the second sliding groove, and the other end of the second pushing block is fixedly connected with the other end of the second catheter.

[0011] Further, the pulling wire operating mechanism comprises a rack, a trigger pushing block and a lever connecting member, the rack is slidably arranged in the handle along the long axis of the first catheter, the lever connecting member is rotatably arranged in the handle through a pin shaft, one side of the rack is provided with continuous one-way teeth inclined toward the first catheter, one end of the lever connecting member is provided with a tooth block, the tooth block is slidable along the one-way teeth or embedded between two adjacent one-way teeth, one end of the handle provided with an operating hole, one end of the trigger pushing block extends into the handle from the operating hole, and the end of the trigger pushing block is movably connected with one end of the lever connecting member, and the end of the trigger pushing block is rotatably connected with the handle through a pin shaft, and the end of the knot-tying rope sleeve is fixedly connected with the rack.

[0012] Further, both sides of the handle are respectively provided with guide grooves corresponding to the rack, the guide grooves extend along the long axis of the first catheter, and both sides of the rack are respectively provided with guide blocks penetrating through the corresponding guide grooves.

[0013] Further, the other side of the rack is also provided with continuous one-way teeth inclined toward the first catheter, and the surface of the handle corresponding to the other side of the rack is provided with a positioning pin, the positioning pin is movable toward the inside of the handle under the action of an external force, and is inserted between two adjacent one-way teeth of the other side of the rack to fix the rack.

[0014] The micro-invasive integrated tissue cavity ligation system has the advantages of reasonable structure, adoption of tissue ligation mode, concentration of clamping, ligation and line cutting operations in the same system by using the thoracoscopic minimally invasive surgery mode, effective avoidance of the problem of repeated entry of instruments into the body during the surgery to cause the surgical risk, great reduction of the surgical operation difficulty, and reduction of the burden and pain of the patient. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a structural schematic diagram of a micro-invasive integrated tissue cavity ligation system according to the present application;

[0016] Figure 2 FIG. 2 is a schematic diagram of the internal structure of the micro-invasive integrated tissue cavity ligation system according to the present application;

[0017] Figure 3 FIG. 3 is a schematic diagram of the local structure of the micro-invasive integrated tissue cavity ligation system according to the present application; Figure 1 ;

[0018] Figure 4 This is a partial structural diagram of the minimally invasive integrated tissue cavity ligation system of the present invention. Figure 2 ;

[0019] Figure 5 This is a schematic diagram of the structure of the suture cutter and the first catheter in the minimally invasive integrated tissue cavity ligation system of the present invention.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Handle; 2. Sheath; 3. Clamp; 4. Knotting loop; 5. First guide tube; 7. Pulling mechanism; 8. Cutting mechanism; 10. Cutter; 11. First drive unit; 12. Positioning pin; 41. Rope loop; 51. Rope loop cavity seat; 52. Knife holder; 71. Rack; 72. Trigger block; 73. Lever connector; 81. Second guide tube; 82. Second drive unit; 711. Guide block; 731. Tooth block. Detailed Implementation

[0022] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0023] Example: Figures 1 to 3 As shown, the minimally invasive integrated tissue cavity ligation system of this embodiment includes a handle 1, a sheath 2, a clamp 3, a knotted rope loop 4, a first catheter 5, a suture pulling mechanism 7, and a suture cutting mechanism 8. One end of the sheath 2 is connected to the handle 1, and the other end is away from it. The clamp 3 passes through the sheath 2, with its clamp head extending outside the other end of the sheath 2. Its operating part is located in or outside the handle 1. The first catheter 5 is placed inside the sheath 2, with a rope loop cavity seat 51 at one end, and the other end passes through one end of the first catheter 5 and is connected to a first driving member 11. The first driving member 11 is used for... The first conduit 5 is driven to move along the long axis of the sheath 2. The knot of the knotted rope sleeve 4 is installed in the rope sleeve cavity seat 51, and its rope loop 41 is sleeved outside the clamp of the clamp 3. The pullable end of the knotted rope sleeve 4 passes through the long axis of the first conduit 5 and is connected to the pull-line operating mechanism 7. One end of the first conduit 5 is equipped with a wire cutter 10 that can extend and retract toward its interior. The pull-line operating mechanism 7 is connected to the wire cutter 10 from inside the sheath 2 and is used to drive the wire cutter 10 to extend and retract toward the interior of the first conduit 5 to cut off one end of the knotted rope sleeve 4.

[0024] In this embodiment, the sheath 2 is sent into the intracardiac cavity by minimally invasive surgery, then the clamp 3 is operated to open and close the clamp head, the tissue (left atrial appendage) is clamped, then it is pulled back, then the knot sleeve 4 is operated by the pull wire operation mechanism 7, so that the rope ring 41 of the knot sleeve 4 is tightened (shrunk) outside the tissue to be ligated, and then the wire is cut inside one end of the first catheter 5 by the cutting wire operation mechanism 8. The whole process can be completed by using one instrument, which improves the disadvantages of the traditional operation which needs to use multiple instruments and multiple operations of the instruments into the human body. The whole instrument structure is reasonable, adopts the tissue ligation mode, and uses the thoracoscopic minimally invasive surgery to concentrate the clamping, ligation and wire cutting operations in the same system, effectively avoids the problem of surgical risk caused by repeated entry of the instrument into the body during the operation, greatly reduces the operation difficulty, and reduces the burden and pain of the patient.

[0025] In this embodiment, the knot sleeve 4 adopts a Meltsch knot, which ensures that the wire rope mainly slides in one direction when it is contracted to ensure the tightness of the ligation, and the material is PTFE.

[0026] As a preferred embodiment, the handle 1 is a gun-shaped handle, and one end of the sheath 2 is connected to the gun head of the gun-shaped handle.

[0027] In the above embodiment, the handle 1 is a gun-shaped handle, which is more convenient and comfortable to operate.

[0028] In this embodiment, the clamp 3 is a prior art, which specifically adopts the structure of a laparoscopic clamp separation clamp product integrated in the instrument, which can be a laparoscopic clamp LB2120 product.

[0029] As a preferred embodiment, one side of the handle 1 is provided with a first sliding groove extending along the long axis of the sheath 2, and the first driving member 11 is a first shifting block penetrating the first sliding groove, which is connected and fixed to the other end of the first catheter 5.

[0030] In the above embodiment, the first driving member 11 is connected to the side end of the handle 1 in a sliding manner, specifically, the first shifting block penetrates the first sliding groove and is connected to the first sliding groove in a sliding manner, which ensures the smoothness and direction accuracy of the movement of the first catheter 5 along the long axis of the sheath 2.

[0031] As a preferred embodiment, as shown in Figure 3 , 4The cutting device 10 is a cutter, the side wall of the first conduit 5 is provided with a cutter hole along the radial direction, the cutter is elastically connected to the cutter hole, the cutting edge of the cutter is located in the first conduit 5, the inner wall of the side of the first conduit 5 away from the cutter hole is provided with a cutter seat 52 matched with the cutter, the cutting operation mechanism 8 comprises a second conduit 81 and a second driving member 82, the second conduit 81 is sleeved on the first conduit 5, one end of the second conduit 81 is close to the cutter, and the other end of the second conduit 81 is connected to the second driving member 82, the end of the cutter exposed outside the cutter hole is provided with an inclined surface, the inclined surface extends obliquely towards one end of the second conduit 81, and the second driving member 82 is used for driving the second conduit 81 to move along the long axis of the first conduit 5 and press the inclined surface of the cutter during the movement towards the cutter, so that the cutter is elastically connected to the cutter seat 52 and the elastic member is synchronously stretched, the end of the knot rope sleeve 4 is cut, and during the movement of the second conduit 81 away from the cutter, the elastic member drives the cutter to elastically move back and away from the cutter seat 52.

[0032] In the embodiment, after the first conduit 5 pushes the tissue to complete the ligation, the second conduit 81 is pushed to be close to the cutter, and is pushed along the inclined surface of the cutter by a certain distance, during the process, the second conduit 81 presses the inclined surface of the cutter exposed outside the first conduit 5, so that the cutter moves towards the inside of the first conduit 5, thereby being close to and cutting the end of the knot rope sleeve 4 that can be pulled, the operation of cutting the knot after the ligation is completed, the whole structure design is relatively ingenious, the cutting of the knot can be completed by the pushing mode, and the operation can be realized at the handle 1, so that the operation is faster and simpler.

[0033] It should be particularly pointed out that, in the embodiment, the elastic members are connected to the two sides of the cutter hole respectively, the two elastic members are connected to the two sides of the cutter respectively, in the normal state, the cutter is away from the cutter seat 52, and the elastic members are in the state of not being stressed, when the second conduit 81 acts on the inclined surface of the cutter exposed outside, the cutter is pressed to move, so that the elastic members are stretched, after the knot rope is cut, the second conduit 81 retreats, and the elastic members drive the cutter to return to the position (away from the cutter seat 52) under the action of the elastic force, the elastic members can be conventional springs, one end of the spring is connected to the two sides of the cutter hole, and the other end of the spring is connected to the side end of the cutter.

[0034] As a preferred embodiment, the other side of the handle 1 is provided with a second sliding groove extending along the long axis of the sheath tube 2, the second driving member 82 is a second shifting block passing through the second sliding groove, and the second shifting block is fixedly connected to the other end of the second conduit 81.

[0035] In the above embodiment, the second driving member 82 is slidably connected to the side end of the handle 1. Specifically, the second trigger block passes through the second sliding groove and is slidably connected to the second sliding groove, ensuring smooth and accurate direction of the second catheter 81 along the long axis of the sheath 2.

[0036] As a preferred embodiment, as shown in Figure 2 The above-described pull wire operating mechanism 7 includes a rack 71, a trigger block 72, and a lever connecting member 73. The rack 71 is slidably assembled in the handle 1 along the long axis of the first catheter 5. The lever connecting member 73 is rotatably assembled in the handle 1 through a pin shaft on one side of the rack 71. One side of the rack 71 near the lever connecting member 73 is provided with a continuous one-way tooth inclined toward the first catheter 5. One end of the lever connecting member 73 is provided with a tooth block 731, which can slide along the one-way tooth or be embedded between two adjacent one-way teeth. The end of the handle 1 toward the first catheter 5 is provided with an operating hole. One end of the trigger block 72 extends into the handle 1 from the operating hole, and the end of the trigger block 72 is movably connected to one end of the lever connecting member 73. The trigger block 72 is rotatably connected to the handle 1 through a pin shaft. The end of the knot rope sleeve 4 can pull the end of the rope.

[0037] In the above embodiment, the trigger block 72 generally extends in the direction of the first catheter 5 (as shown in Figure 2 When cutting the wire rope, press the trigger block 72 to make the lever connecting member 73 swing, so that the tooth block 731 of the lever connecting member 73 swings and moves away from the first catheter 5, thereby driving the rack 71 to translate away from the first catheter 5, achieving the operation of pulling and tightening the wire rope. When the trigger block 72 moves, the tooth block 731 swings and moves toward the first catheter 5, sliding along the inclined surface of the one-way tooth of the rack 71. At this time, the rack 71 can be simultaneously operated to move back to the first catheter 5. The overall structure is simple, reasonable, and convenient to operate.

[0038] As a preferred embodiment, the handle 1 is provided with a guide groove corresponding to the rack 71 on each side. The guide groove extends along the long axis of the first catheter 5. The rack 71 is provided with a guide block 711 on each side. The guide block 711 passes through the corresponding guide groove.

[0039] In the above embodiment, the sliding cooperation of the guide groove and the guide block 711 guides and limits the movement direction of the rack 71, so that it can only translate along the long axis of the first catheter 5. The assembly structure of the rack 71 is also more stable.

[0040] As a preferred embodiment, the other side of the rack 71 is also provided with continuous one-way teeth inclined towards the first conduit 5, and the surface of the handle 1 corresponding to the other side of the rack 71 is provided with a positioning pin 12, which can be operated to move towards the inside of the handle 1 under external force and inserted between the adjacent two one-way teeth on the other side of the rack 71 to fix the rack 71.

[0041] In the above embodiment, the position of the rack 71 can be locked by the design of the positioning pin 12. When the rack 71 does not need to move, it can be locked by the positioning pin 12. Specifically, the positioning pin 12 moves towards the inside of the handle 1 and is inserted between the two one-way teeth on the other side of the rack 71. When the rack 71 needs to move, the positioning pin 12 is pulled out in the opposite direction to make it disengage from the gap between the one-way teeth.

[0042] The positioning pin 12 can be assembled with the threaded hole on the surface of the handle 1 in a threaded connection manner.

[0043] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0044] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0045] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] In the present application, unless otherwise explicitly specified and limited, a first feature is "on" or "under" a second feature can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "over", "above" and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature is "under", "below" and "underneath" the second feature can mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0047] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0048] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A minimally invasive integrated tissue lumen ligating system, characterized by: The device comprises a handle (1), a sheath (2), a clamp (3), a knotting rope sleeve (4), a first catheter (5), a pull rope operating mechanism (7) and a cutting operating mechanism (8). One end of the sheath (2) is connected with the handle (1), and the other end is away from the handle (1). The clamp (3) passes through the sheath (2), the clamp head of the clamp (3) extends outside the other end of the sheath (2), and the operating part of the clamp (3) is located in the handle (1) or outside the handle (1). The first catheter (5) is arranged in the sheath (2), one end of the first catheter (5) is provided with a rope sleeve cavity seat (51), the other end passes through one end of the first catheter (5) and is connected with a first driving member (11), the first driving member (11) is used for driving the first catheter (5) to move along the long axis of the sheath (2), the knot of the knotting rope sleeve (4) is arranged in the rope sleeve cavity seat (51), the rope ring (41) of the knotting rope sleeve (4) is sleeved outside the clamp head of the clamp (3), and the pullable end of the knotting rope sleeve (4) passes through the long axis of the first catheter (5) and is connected with the pull rope operating mechanism (7). One end of the first catheter (5) is provided with a cutting device (10) which can be telescopically moved towards the inside of the first catheter (5), the pull rope operating mechanism (7) is connected with the cutting device (10) in the sheath (2) and is used for driving the cutting device (10) to telescopically move towards the inside of the first catheter (5) to cut the end of the knotting rope sleeve (4). The handle (1) is a gun-shaped handle, and one end of the sheath (2) is connected with the gun head of the gun-shaped handle. The cutting device (10) is a cutter, the side wall of one end of the first catheter (5) is provided with a cutter hole in the radial direction, the cutter is telescopically arranged in the cutter hole through an elastic member, the cutting edge of the cutting device (10) is located in the first catheter (5), the inner wall of the side of the first catheter (5) away from the cutter hole is provided with a cutter seat (52) matched with the cutting device (10), the cutting operating mechanism (8) comprises a second catheter (81) and a second driving member (82), the second catheter (81) is sleeved outside the first catheter (5), one end of the second catheter (81) is close to the cutting device (10), and the other end is connected with the second driving member (82), one end of the cutting device (10) exposed outside the cutter hole is provided with an inclined surface, the inclined surface extends obliquely towards one end of the second catheter (81), and the second driving member (82) is used for driving the second catheter (81) to move along the long axis of the first catheter (5) and to press the inclined surface of the cutting device (10) in the process of moving towards the cutting device (10), so that the cutting device (10) telescopically moves towards the inside of the first catheter (5) and approaches the cutter seat (52), the elastic member is synchronously stretched, the pullable end of the knotting rope sleeve (4) is cut, and in the process that the second catheter (81) moves away from the cutting device (10), the elastic member drives the cutting device (10) to telescopically move back and away from the cutter seat (52). The other side of the handle (1) is provided with a second sliding groove extending along the long axis of the sheath (2), and the second driving member (82) is a second pulling block penetrating through the second sliding groove and fixedly connected with the other end of the second conduit (81).

2. The minimally invasive integrated tissue lumen ligating system of claim 1, wherein: One side of the handle (1) is provided with a first sliding groove extending along the long axis of the sheath (2), and the first driving member (11) is a first pulling block penetrating through the first sliding groove and fixedly connected with the other end of the first conduit (5).

3. The minimally invasive integrated tissue lumen ligating system of claim 1, wherein: The pull wire operating mechanism (7) comprises a rack (71), a trigger pulling block (72) and a lever connecting member (73). The rack (71) is slidably arranged in the handle (1) along the long axis direction of the first conduit (5). The lever connecting member (73) is rotatably arranged in the handle (1) through a pin shaft and located at one side of the rack (71). One side of the rack (71) close to the lever connecting member (73) is provided with continuous one-way teeth inclined towards the first conduit (5). One end of the lever connecting member (73) is provided with a tooth block (731) which can slide along the one-way teeth or be embedded between two adjacent one-way teeth. One end of the handle (1) towards the first conduit (5) is provided with an operating hole. One end of the trigger pulling block (72) extends into the handle (1) from the operating hole, and the end of the trigger pulling block (72) extending into the handle (1) is movably connected with one end of the lever connecting member (73). The end of the trigger pulling block (72) is rotatably connected with the handle (1) through a pin shaft. The end of the knot-tying rope sleeve (4) is connected with the rack (71).

4. The minimally invasive integrated tissue lumen ligating system of claim 3, wherein: Both sides of the handle (1) are respectively provided with a guide groove corresponding to the rack (71), and the guide groove extends along the long axis direction of the first conduit (5). Both sides of the rack (71) are respectively provided with a guide block (711) penetrating through the corresponding guide groove.

5. The minimally invasive integrated tissue lumen ligating system of claim 3, wherein: The other side of the rack (71) is also provided with continuous one-way teeth inclined towards the first conduit (5). The surface of the handle (1) corresponding to the other side of the rack (71) is provided with a positioning pin (12). The positioning pin (12) can be moved towards the inside of the handle (1) under the action of an external force and inserted between two adjacent one-way teeth of the other side of the rack (71) to fix the rack (71).

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