Hollow organ retraction device

Abstract

The present invention provides a hollow organ traction device, which relates to the technical field of medical devices. The hollow organ traction device provided by the present invention includes an organ anchoring head, an abdominal wall anchoring head, and a traction line connected therebetween; the organ anchoring head and the abdominal wall anchoring head both include a fixing assembly, a chuck assembly, and a capture assembly; the chuck assembly is transmission-connected to the capture assembly, and the chuck assembly is installed on the fixing assembly; part of the capture assembly is located inside the fixing assembly, and a matching structure is provided between the two, and the matching structure is used to move the capture assembly relative to the fixing assembly to drive the chuck assembly to an open state or a closed state. The invention alleviates the technical problem of mutual interference between instruments when multiple people and multiple instruments cooperate with each other to pull unrelated organs in the prior art, and ensures the smooth progress of minimally invasive and non-invasive surgery.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a hollow organ traction device. Background Art

[0002] Minimally invasive and non-invasive are the trends and goals of surgical operations. They are achieved by establishing a single hole, multiple holes or natural cavities in the abdominal wall, which effectively reduces postoperative pain and speeds up postoperative recovery. In current minimally invasive surgeries, surgeons need to use laparoscopic instruments to puncture holes in the abdominal wall or natural cavities under real-time monitoring and guidance of the endoscope. When using an endoscope to observe human organs or surgical instruments to treat lesions, irrelevant organs need to be retracted to expose the surgical field. In the process of retracting irrelevant organs, close cooperation between multiple people and multiple instruments is required. In addition, considering the narrow space of the abdominal cavity, multiple instruments will interfere with each other inside the abdominal cavity, which is not conducive to improving the degree of minimally invasiveness and the precision of the operation, and is not conducive to improving the efficiency of the operation and the minimally invasive effect. Summary of the invention

[0003] The purpose of the present invention is to provide a hollow organ traction device to alleviate the technical problems of mutual interference between instruments and difficulty in cooperation among multiple people when multiple people and multiple instruments cooperate with each other to pull unrelated organs in the related art.

[0004] In order to solve the above technical problems, the technical means adopted by the present invention are:

[0005] The present invention provides a hollow organ traction device comprising: an organ anchoring head, an abdominal wall anchoring head and a traction line connected therebetween;

[0006] The organ anchoring head and the abdominal wall anchoring head each include a fixing assembly, a clamp assembly and a capturing assembly;

[0007] The clamping assembly is in transmission connection with the capturing assembly, and the clamping assembly is installed on the fixing assembly;

[0008] Part of the capture component is located inside the fixed component, and a matching structure is provided between the two. The matching structure is used to enable the capture component to move relative to the fixed component to drive the clamping head component to be in an open state or a closed state.

[0009] Further, the fixing assembly includes a spiral pitch adjuster and an outer sleeve fixing cylinder, and the spiral pitch adjuster is rotatably connected to the outer sleeve fixing cylinder;

[0010] The capture assembly includes a central cylinder, and the central cylinder is threadedly connected to the spiral pitch adjuster;

[0011] The spiral pitch adjuster rotates relative to the outer sleeve fixing cylinder to drive the central column to move relative to the outer sleeve fixing cylinder;

[0012] The chuck assembly is transmission-connected to the central column, and the chuck assembly is installed on the outer sleeve fixing tube.

[0013] Furthermore, the outer circumferential surface of the spiral pitch adjuster is circular, and a plurality of first grooves are provided at intervals in the circumferential direction of the spiral pitch adjuster, and the first grooves are extended along the axial direction of the spiral pitch adjuster.

[0014] Furthermore, a plurality of second grooves are provided at intervals along the circumferential direction at the end of the central column away from the chuck assembly, and the second grooves are extended along the axial direction of the central column.

[0015] Furthermore, a capture piece is provided at one end of the central column away from the clamp assembly, and the capture piece is used to be connected to a surgical instrument.

[0016] Further, the clamp assembly includes a first clamp, a second clamp, a first sliding joint branch and a second sliding joint branch;

[0017] The first clip has a first connection portion, the second clip has a second connection portion, the first connection portion and the second connection portion are hinged to the outer sleeve fixing tube through a first hinge axis and are arranged crosswise;

[0018] The first connection part and the first sliding joint branch are hinged via a second hinge axis, the second connection part and the second sliding joint branch are hinged via a third hinge axis; the first sliding joint branch and the second sliding joint branch are hinged to the central column via a fourth hinge axis;

[0019] The central column is used to drive the fourth hinge axis to approach or move away from the first hinge axis, so that the first clamp and the second clamp move away from or towards each other.

[0020] Furthermore, in the organ anchoring head, when the clamp assembly is in the closed state, the first clamp and the second clamp are arranged to form a closed first hollow structure.

[0021] Furthermore, in the abdominal wall anchoring head, when the clamp assembly is in the closed state, the first clamp and the second clamp are arranged to form a closed second hollow structure.

[0022] Furthermore, an elastic reset member is provided between the clamping head assembly and the capturing assembly, and the elastic reset member has a tendency to move the fourth hinge axis in a direction away from the first hinge axis.

[0023] Furthermore, the elastic reset member is a spring;

[0024] A connecting rod is protruded from one end of the central column close to the clamp assembly, and the first sliding joint branch and the second sliding joint branch are hinged to the connecting rod through a fourth hinge shaft;

[0025] The spring is sleeved on the connecting rod, and one end of the spring abuts against the central column, and the other end of the spring abuts against the first connecting portion and the second connecting portion.

[0026] Compared with the prior art, the hollow organ traction device provided by the present invention has the following technical advantages:

[0027] In the present application, the organ anchoring head and the abdominal wall anchoring head are connected by a pulling line, and by pulling one of the organ anchoring head and the abdominal wall anchoring head, the other can be driven to move; a matching structure is provided between the capture component and the fixed component, and the capture component can be moved relative to the fixed component through the matching structure, and the chuck component is connected to the capture component in a transmission manner, so that the capture component moves relative to the fixed component while driving the chuck component to be in an open state or a closed state. When the chuck component is in an open state, the chuck component is placed close to the organ tissue or the abdominal wall tissue, and then the chuck component is closed, so that the chuck component is anchored to the organ tissue or the abdominal wall tissue.

[0028] When performing minimally invasive or non-invasive surgery, the hollow organ traction device is sent into the body cavity through a surgical puncture hole or a natural cavity, and the surgical instrument acts on the matching structure of the organ anchoring head to anchor the organ anchoring head to an irrelevant organ that affects the surgery. Then the abdominal wall anchoring head is pulled by the surgical instrument and acts on the matching structure of the abdominal wall anchoring head to anchor the abdominal wall anchoring head to the abdominal wall tissue. During the traction process, due to the presence of the traction line, the irrelevant organ anchored by the organ anchoring head is pulled away from its original position by the traction force, thereby exposing the surgical field of view. It can be seen from this that when the hollow organ traction device of the present application is used for minimally invasive or non-invasive surgery, mutual interference between multiple instruments is avoided, and iatrogenic damage to the organ is effectively reduced. At the same time, the traction characteristics of the hollow organ traction device make it unnecessary to cooperate with multiple people and too many instruments during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related technologies, the drawings required for use in the specific embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A schematic diagram of a hollow organ traction device provided in an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of a clamp assembly of an abdominal wall anchoring head of a hollow organ traction device provided in an embodiment of the present invention.

[0032] icon:

[0033] 100 - pull line;

[0034] 200 - fixing assembly; 210 - spiral pitch adjuster; 220 - outer sleeve fixing tube; 211 - first groove; 221 - pulling hole;

[0035] 300 - chuck assembly; 310 - first clip; 320 - second clip; 330 - first sliding joint branch; 340 - second sliding joint branch;

[0036] 400 - capture assembly; 410 - central column; 420 - capture member; 411 - second groove; 412 - connecting rod;

[0037] 500 - Spring. DETAILED DESCRIPTION

[0038] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] refer to Figure 1The hollow organ traction device provided in this embodiment includes an organ anchoring head, an abdominal wall anchoring head and a traction line 100 connected therebetween; the organ anchoring head and the abdominal wall anchoring head each include a fixing assembly 200, a clamping assembly 300 and a capturing assembly 400; the clamping assembly 300 is transmission-connected to the capturing assembly 400, and the clamping assembly 300 is installed on the fixing assembly 200; a portion of the capturing assembly 400 is located inside the fixing assembly 200, and a matching structure is provided between the two, and the matching structure is used to enable the capturing assembly 400 to move relative to the fixing assembly 200, so as to drive the clamping assembly 300 to be in an open state or a closed state.

[0042] Specifically, the organ anchoring head and the abdominal wall anchoring head are connected by a pulling line 100, and by pulling one of the organ anchoring head and the abdominal wall anchoring head, the other can be driven to move; a matching structure is provided between the capture component 400 and the fixing component 200, and the capture component 400 can be moved relative to the fixing component 200 through the matching structure, and the chuck component 300 is connected to the capture component 400 by transmission, so that the capture component 400 moves relative to the fixing component 200 while driving the chuck component 300 to be in an open state or a closed state. When the chuck component 300 is in an open state, the chuck component 300 is placed close to the organ tissue or the abdominal wall tissue, and then the chuck component 300 is placed in a closed state through the matching structure, so that the chuck component 300 is anchored to the organ tissue or the abdominal wall tissue.

[0043] When performing minimally invasive or non-invasive surgery, the hollow organ traction device is sent into the body cavity through the surgical puncture hole or natural cavity, and the surgical instrument acts on the matching structure of the organ anchoring head to anchor the organ anchoring head to an irrelevant organ that affects the surgery, and then the abdominal wall anchoring head is pulled by the surgical instrument and acts on the matching structure of the abdominal wall anchoring head to anchor the abdominal wall anchoring head to the abdominal wall tissue. During the traction process, due to the presence of the traction line 100, the irrelevant organ anchored by the organ anchoring head is pulled away from its original position by the traction force, thereby exposing the surgical field of view. It can be seen that when the hollow organ traction device of the present application is used for minimally invasive or non-invasive surgery, mutual interference between multiple instruments is avoided, and iatrogenic damage to the organ is effectively reduced. At the same time, the traction characteristics of the hollow organ traction device make it unnecessary to cooperate with multiple people and too many instruments during the operation, and there is no need for the surgeon to continuously pull the organ, thereby reducing the number of surgical puncture holes, which is conducive to the promotion and application of single-port laparoscope surgery through natural cavities.

[0044] Further, refer to Figure 1The fixing assembly 200 includes a spiral pitch adjuster 210 and an outer sleeve fixing tube 220, and the spiral pitch adjuster 210 is rotatably connected to the outer sleeve fixing tube 220; the capture assembly 400 includes a central column 410, and the central column 410 is threadedly connected to the spiral pitch adjuster 210; the spiral pitch adjuster 210 rotates relative to the outer sleeve fixing tube 220, and is used to drive the central column 410 to move relative to the outer sleeve fixing tube 220; the chuck assembly 300 is transmission-connected to the central column 410, and the chuck assembly 300 is installed on the outer sleeve fixing tube 220.

[0045] Specific, combined Figure 1 The spiral pitch adjuster 210 and the outer sleeve fixing tube 220 are sleeved on the upper part of the central column 410. The matching structure between the fixing component 200 and the capture component 400 is the threaded structure between the spiral pitch adjuster 210 and the central column 410. The surgical instrument can act on the spiral pitch adjuster 210 and the central column 410 to make the spiral pitch adjuster 210 rotate relative to the outer sleeve fixing tube 220, and at the same time drive the central column 410 to move along its axial direction relative to the outer sleeve fixing tube 220. The central column 410 is also connected to the chuck assembly 300, thereby driving the chuck assembly 300 to open or close, that is, the chuck assembly 300 is in an open state or a closed state.

[0046] During minimally invasive or non-invasive surgery, the hollow organ traction device can be delivered into the patient's body cavity through the operating channel or natural cavity established in the patient's abdominal wall. The organ anchoring head and the abdominal wall anchoring head can be anchored to the organ tissue and the abdominal wall tissue respectively through the surgical instrument. With the cooperation of the organ anchoring head, the abdominal wall anchoring head and the traction wire 100, the organ is separated from its original position, thereby exposing the surgical field of view. It can be seen that the device can achieve effective and continuous traction of the organ, reduce the number of surgical participants, and thus reduce labor costs.

[0047] It should be added that the pulling wire 100 is made of steel wire, and a pulling hole 221 is provided on the side of the outer sleeve fixing tube 220. The pulling wire 100 passes through the pulling hole 221 and is connected to the central column 410 to achieve the connection between the organ anchoring head and the abdominal wall anchoring head.

[0048] Further, refer to Figure 1 The outer circumferential surface of the spiral pitch adjuster 210 is circular, and a plurality of first grooves 211 are arranged at intervals in the circumferential direction of the spiral pitch adjuster 210 . The first grooves 211 are extended along the axial direction of the spiral pitch adjuster 210 .

[0049] Continue to refer Figure 1 A plurality of second grooves 411 are circumferentially spaced apart at the end of the central column 410 away from the chuck assembly 300 , and the second grooves 411 are extended along the axial direction of the central column 410 .

[0050] Please continue to refer to Figure 1 A capture member 420 is provided at one end of the central column 410 away from the clamp assembly 300, and the capture member 420 is used to connect with a surgical instrument.

[0051] like Figure 1 As shown, the capture member 420 adopts a capture ring or a capture hook, which is arranged at the lower end of the central column 410 to facilitate the capture of the hollow organ traction device by the surgical instrument; the outer peripheral surface of the spiral pitch adjuster 210 is provided with a plurality of first grooves 211 at intervals, which are used to cooperate with the surgical instrument so that the surgical instrument can drive the spiral pitch adjuster 210 to rotate. Of course, the spiral pitch adjuster 210 can also adopt a square structure to ensure that the spiral pitch adjuster 210 can rotate with the surgical instrument; the lower part of the central column 410 is provided with a plurality of second grooves 411 at intervals, which are also used to cooperate with the surgical instrument to avoid the central column 410 from rotating synchronously with the spiral pitch adjuster 210.

[0052] In specific application, the surgical instrument first captures the hollow organ pulling device through the capture member 420, and then cooperates with the first groove 211 and the second groove 411 respectively, and drives the spiral pitch adjuster 210 to rotate around its axis. At this time, the central column 410 moves upward or downward along its axis, and then drives the chuck assembly 300 to open or close, so as to achieve the anchoring of the chuck assembly 300. In addition, since the spiral pitch adjuster 210 and the central column 410 are spirally driven, the chuck assembly 300 can maintain the state at this time when the spiral pitch adjuster 210 is immobile relative to the outer sleeve fixing tube 220. Therefore, the transmission method of the central column 410 ensures that the chuck assembly 300 can be stably anchored to the organ tissue or abdominal wall tissue.

[0053] Further, refer to Figure 1 and Figure 2 The clamp assembly 300 includes a first clamp 310, a second clamp 320, a first sliding joint branch 330 and a second sliding joint branch 340; the first clamp 310 has a first connection portion, the second clamp 320 has a second connection portion, the first connection portion and the second connection portion are hinged to the outer sleeve fixing tube 220 through a first hinge axis and are cross-arranged; the first connection portion and the first sliding joint branch 330 are hinged through the second hinge axis, and the second connection portion and the second sliding joint branch 340 are hinged through the third hinge axis; the first sliding joint branch 330 and the second sliding joint branch 340 are hinged to the central column 410 through a fourth hinge axis; the central column 410 is used to drive the fourth hinge axis to approach or move away from the first hinge axis, so that the first clamp 310 and the second clamp 320 move away from or towards each other.

[0054] Specifically, Figure 1For example, when the spiral pitch adjuster 210 drives the central column 410 to move upward, since the first clip 310 and the second clip 320 are hinged to the outer sleeve fixing tube 220, the first sliding joint branch 330 hinged between the central column 410 and the first connecting portion of the first clip 310 rotates rightward around the axis of the fourth hinge axis, and synchronously drives the first clip 310 to rotate leftward, and the second sliding joint branch 340 hinged between the second connecting portion of the central column 410 and the second clip 320 rotates leftward around the axis of the fourth hinge axis, and synchronously drives the second clip 320 to rotate rightward. Rotation causes the first clamp 310 and the second clamp 320 to move away from each other, thereby realizing the opening of the chuck assembly 300; conversely, when the spiral pitch adjuster 210 drives the central column 410 to move downward, the first sliding joint branch 330 rotates to the left around the axis of the fourth hinge shaft, and synchronously drives the first clamp 310 to rotate to the right, and the second sliding joint branch 340 rotates to the right around the axis of the fourth hinge shaft, and synchronously drives the second clamp 320 to rotate to the left, that is, the first clamp 310 and the second clamp 320 move toward each other, thereby realizing the closing of the chuck assembly 300. It can be seen from the above process that the direction of rotation of the spiral pitch adjuster 210 determines the moving direction of the central column 410, and further determines the rotation direction of the first clamp 310 and the second clamp 320, that is, controls the opening or closing of the clamp assembly 300. The process is simple to operate and the structure involved is simple, so the hollow organ traction device can be miniaturized, thereby facilitating the surgeon to pull the organ in a narrow body cavity, which is conducive to the smooth progress of the operation.

[0055] Further, refer to Figure 1 In the organ anchoring head, when the clamp assembly 300 is in a closed state, the first clamp 310 and the second clamp 320 are arranged to form a closed first hollow structure.

[0056] Specifically, the first clip 310 and the second clip 320 are located outside the outer sleeve fixing tube 220, which is the anchoring clip of the clip assembly 300 for anchoring to the organ tissue. Figure 1 The upper part of the anchoring chuck is horizontal, and the organ tissue is in the first hollow structure, thereby avoiding damage to the organ tissue and playing a certain protective role for the organ.

[0057] Further, refer to Figure 2 In the abdominal wall anchoring head, when the clamp assembly 300 is in a closed state, the first clamp 310 and the second clamp 320 are arranged to form a closed second hollow structure.

[0058] For details, please refer to Figure 2The first clip 310 and the second clip 320 are located outside the outer sleeve fixing tube 220, which are the anchoring clips of the clip assembly 300 for anchoring to the abdominal wall tissue. The ends of the first clip 310 and the second clip 320 for clamping are pointed in the direction close to the other and extend downward, thereby ensuring the stability of the anchoring clip anchoring to the abdominal wall tissue, and further ensuring that the pulling force of the abdominal wall anchoring head on the organ through the traction line 100 and the organ anchoring head can meet the surgical requirements.

[0059] Furthermore, an elastic reset member is provided between the clamping head assembly 300 and the capturing assembly 400, and the elastic reset member has a tendency to move the fourth hinge axis in a direction away from the first hinge axis.

[0060] Specific, combined Figure 1 When the clamp assembly 300 is in an incompletely closed state or an open state, the elastic reset member applies an upward force to the first clip 310 and the second clip 320, and simultaneously applies a downward force to the central column 410, so that the fourth hinge axis and the first hinge axis have a tendency to move in opposite directions, that is, the first clip 310 has a tendency to move rightward, and the second clip 320 has a tendency to move leftward, thereby ensuring that the clamp assembly 300 is in a closed state. In actual application, due to the elasticity of the organ tissue and the abdominal wall tissue, the anchoring parts of the two will deform, and the elastic reset member makes the first clip 310 and the second clip 320 further close as the two deform, thereby ensuring the stability of the anchoring of the clamp assembly 300.

[0061] Preferably, reference Figure 1 The elastic return member adopts a spring 500; a connecting rod 412 is protruded from one end of the central column 410 close to the chuck assembly 300, and the first sliding joint branch 330 and the second sliding joint branch 340 are hinged to the connecting rod 412 through a fourth hinge axis; the spring 500 is sleeved on the connecting rod 412, and one end of the spring 500 abuts against the central column 410, and the other end abuts against the first connecting part and the second connecting part.

[0062] Specifically, when the clamp assembly 300 is in a closed state, the spring 500 is in a natural state; when the clamp assembly 300 is in an incompletely closed state or an open state, the spring 500 is in a compressed state, so that the first clamp 310 and the second clamp 320 are subjected to an upward force, and the central column 410 is subjected to a downward force, so that the fourth hinge axis and the first hinge axis have a tendency to move in opposite directions, thereby ensuring the stability of the anchoring of the clamp assembly 300.

[0063] It should be supplemented that when the clamp assembly 300 is anchored to the organ tissue or the abdominal wall tissue, the clamp assembly 300 is in an incompletely closed state.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents, and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hollow organ traction device, characterized in that: include: An organ anchoring head, an abdominal wall anchoring head, and a pulling wire (100) connected therebetween; The organ anchoring head and the abdominal wall anchoring head both include a fixing assembly (200), a clamp assembly (300) and a capturing assembly (400); The clamping assembly (300) is transmission-connected to the capturing assembly (400), and the clamping assembly (300) is installed on the fixing assembly (200); Part of the capture component (400) is located inside the fixing component (200), and a matching structure is provided between the two, wherein the matching structure is used to enable the capture component (400) to move relative to the fixing component (200) so as to drive the clamping head component (300) to be in an open state or a closed state; The fixing assembly (200) comprises a spiral pitch adjuster (210) and an outer sleeve fixing cylinder (220), wherein the spiral pitch adjuster (210) is rotatably connected to the outer sleeve fixing cylinder (220); The capture assembly (400) comprises a central column (410), wherein the central column (410) is threadedly connected to the spiral pitch adjuster (210); The spiral pitch adjuster (210) rotates relative to the outer sleeve fixing cylinder (220) to drive the central column (410) to move relative to the outer sleeve fixing cylinder (220); The chuck assembly (300) is transmission-connected to the central column (410), and the chuck assembly (300) is installed on the outer sleeve fixing tube (220). The surgical instrument can act on the spiral pitch adjuster and the central column to rotate relative to the outer sleeve fixing tube, and at the same time drive the central column to move relative to the outer sleeve fixing tube along its axial direction. The central column is transmission-connected to the chuck assembly, thereby driving the chuck assembly to open or close, that is, the chuck assembly is in an open state or a closed state. The outer circumferential surface of the spiral pitch adjuster (210) is circular, and a plurality of first grooves (211) are arranged at intervals in the circumferential direction of the spiral pitch adjuster (210), wherein the first grooves (211) are arranged to extend along the axial direction of the spiral pitch adjuster (210); The end of the central column (410) away from the chuck assembly (300) is provided with a plurality of second grooves (411) at intervals along the circumferential direction. The second grooves (411) are extended along the axial direction of the central column (410). The central column and the spiral pitch adjuster rotate asynchronously.

2. The hollow organ traction device according to claim 1, characterized in that: A capture member (420) is provided at one end of the central column (410) away from the clamp assembly (300), and the capture member (420) is used to be connected to a surgical instrument.

3. The hollow organ traction device according to claim 1, characterized in that: The clamp assembly (300) comprises a first clamp (310), a second clamp (320), a first sliding joint branch (330) and a second sliding joint branch (340); The first clip (310) has a first connection portion, the second clip (320) has a second connection portion, the first connection portion and the second connection portion are hinged to the outer sleeve fixing tube (220) via a first hinge shaft and are arranged crosswise; The first connection portion and the first sliding joint branch (330) are hingedly connected via a second hinge shaft, and the second connection portion and the second sliding joint branch (340) are hingedly connected via a third hinge shaft; the first sliding joint branch (330) and the second sliding joint branch (340) are hingedly connected to the central column (410) via a fourth hinge shaft; The central column (410) is used to drive the fourth hinge axis to move closer to or farther away from the first hinge axis, so that the first clamp (310) and the second clamp (320) move away from or towards each other.

4. The hollow organ traction device according to claim 3, characterized in that: In the organ anchoring head, when the clamp assembly (300) is in the closed state, the first clamp (310) and the second clamp (320) are arranged to form a closed first hollow structure.

5. The hollow organ traction device according to claim 4, characterized in that: In the abdominal wall anchoring head, when the clamp assembly (300) is in the closed state, the first clamp (310) and the second clamp (320) are arranged to form a closed second hollow structure.

6. The hollow organ traction device according to claim 3, characterized in that: An elastic reset component is provided between the clamping head assembly (300) and the capturing assembly (400), and the elastic reset component has a tendency to cause the fourth hinge axis to move in a direction away from the first hinge axis.

7. The hollow organ traction device according to claim 6, characterized in that: The elastic reset member is a spring (500); A connecting rod (412) is protruded from one end of the central column (410) close to the clamp assembly (300), and the first sliding joint branch (330) and the second sliding joint branch (340) are hinged to the connecting rod (412) via a fourth hinge shaft; The spring (500) is sleeved on the connecting rod (412), and one end of the spring (500) abuts against the central column (410), and the other end abuts against the first connecting portion and the second connecting portion.

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