Traction device based on digestive endoscopic surgery

Abstract

The invention discloses a traction device based on digestive endoscopic surgery, and relates to the technical field of auxiliary traction pincers.The traction device comprises a protective shell, a digestive endoscopic body used for observation is arranged in the protective shell, and a clamping assembly driven by a transmission assembly and used for clamping tissue is further arranged in the protective shell; an adjusting assembly used for adjusting the angle is arranged outside the transmission assembly, a limiting assembly used for limiting movement of the digestive endoscope body is further arranged in the transmission assembly, the protective shell comprises a guide seat, a sliding groove is formed in the guide seat, the clamping assembly comprises guide sliding blocks, and hinge shafts are arranged at the ends, away from the endoscope tube body, of the guide sliding blocks. The end, close to the hinge shaft, of the guide sliding block is hinged to a clamping jaw body, the two ends of the clamping jaw body are provided with a primary clamping end and a fixed clamping end respectively, and in the using process, through the design of the primary clamping end and the fixed clamping end and cooperation of the auxiliary clamping teeth, adaptive clamping of diseased tissue of different shapes and sizes is achieved, and the diseased tissue is prevented from slipping off; and the stability and reliability of the clamping process are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary traction forceps, and in particular to a traction device for digestive endoscopic surgery. Background Art

[0002] Digestive endoscopy is an important minimally invasive diagnostic and therapeutic technique, widely used in the examination and treatment of gastrointestinal diseases. Digestive endoscopy primarily includes electronic gastroscopes, electronic colonoscopes, enteroscopes, and capsule endoscopes. These devices, using high-definition cameras and operating channels, help doctors examine the interior of the digestive tract and perform procedures such as biopsies, resections, and mucosal stripping.

[0003] During digestive endoscopic surgery, auxiliary traction forceps are commonly used to pull and secure diseased tissue for more precise manipulation. Furthermore, in some cases, auxiliary traction forceps are also required for dissection and sampling of gastric lesions or for the removal of foreign bodies. Endoscopic mucosal dissection is a routine technique for treating early gastrointestinal cancer and submucosal tumors, requiring the use of a specialized electrosurgical unit for submucosal dissection of the lesion.

[0004] Existing digestive endoscopes often enter the patient's body with auxiliary traction forceps. The traction forceps first cuts off the diseased tissue with a cutting knife, and then controls the clamping forceps to clamp the cut diseased tissue through an adjustment component. During the clamping process, due to the different hardness of the diseased tissue, it is difficult for the operator to control the clamping force. When the force is too strong, it is easy to cause the diseased tissue to rupture and slip, affecting the safety of the operation. In addition, the digestive endoscope adopts a single connection method on the auxiliary traction forceps. When the auxiliary traction forceps is rotated and adjusted, the digestive endoscope changes its angle together with the auxiliary traction forceps. When the auxiliary traction forceps is rotated at a large angle, the operator's image viewing angle observed from the outside is easily reversed, causing the operator to feel dizzy. Summary of the Invention

[0005] In view of the above problems in the prior art, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a traction device for digestive endoscopic surgery. The problem it aims to solve is that in existing digestive endoscopic surgery, auxiliary traction forceps are used to cut and clamp diseased tissue, but in actual use, it is difficult to control the clamping force. Due to the different hardness of the diseased tissue, it is easy to break and slip when the force is large, and the endoscope is fixedly connected to the traction forceps. When the traction forceps rotates, the angle of the endoscope changes accordingly, which can easily cause the operator's viewing angle of the image to be reversed, causing dizziness.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a traction device for digestive endoscopy surgery, comprising a protective housing, wherein a digestive endoscope body for observation is disposed within the protective housing, wherein a clamping assembly driven by a transmission assembly and for clamping tissue is further disposed within the protective housing, wherein an adjustment assembly for adjusting an angle is externally disposed within the transmission assembly, and wherein a limit assembly for limiting the movement of the digestive endoscope body is further disposed within the transmission assembly;

[0008] The protective shell includes a guide seat located outside the digestive endoscope body, the guide seat is provided with arranged and distributed slide grooves, the guide seat is also provided with an observation hole corresponding to the digestive endoscope body, and the slide grooves are distributed in a circular array around the observation hole, and the end of the guide seat close to the digestive endoscope body is also provided with a funnel-shaped protective cone cover;

[0009] The digestive endoscope body includes a lens body and a mirror tube body, and one end of the lens body away from the mirror tube body extends into the guide seat through the observation hole;

[0010] The clamping assembly includes an L-shaped guide slider distributed in a circular array around the observation hole and slidably connected in a slide groove. The guide slider is provided with a hinge shaft at the end away from the mirror tube body. The end of the guide slider close to the hinge shaft is hingedly connected to a U-shaped clamping claw body through the hinge shaft. The two ends of the clamping claw body are respectively provided with an initial clamping end and a fixed clamping end, and the end of the clamping claw body close to the initial clamping end is inclined toward the observation hole. The length of the initial clamping end is slightly longer than that of the fixed clamping end. Auxiliary clamping teeth integrally formed with the clamping claw body are also provided between the initial clamping end and the fixed clamping end.

[0011] As a preferred solution of the traction device for digestive endoscopic surgery described in the present invention, the end of the guide seat away from the mirror tube body is also provided with a funnel-shaped silicone cone sleeve, and the silicone cone sleeve is provided with a positioning ring and a reinforcement ring fixedly mounted on the guide seat, and the positioning ring and the reinforcement ring are distributed in concentric circles around the observation hole, and the positioning ring and the reinforcement ring are respectively provided with positioning holes and reinforcement holes corresponding to the slide grooves, and the end of the guide slider close to the hinge shaft passes through the guide seat and is slidably connected in the reinforcement hole.

[0012] As a preferred solution of the traction device for digestive endoscopic surgery described in the present invention, the transmission assembly includes an L-shaped transmission slider fixedly connected to the end of the guide slider away from the hinge axis, and the end of the transmission slider away from the guide slider is provided with a connecting rod hingedly connected.

[0013] As a preferred solution of the traction device for digestive endoscopic surgery described in the present invention, the transmission assembly also includes a threaded shaft movably connected in the guide seat and corresponding to the observation hole, the threaded shaft extending to one end of the mirror tube body is provided with a transmission thread, the threaded shaft is provided with an annular groove corresponding to the limit assembly, and the threaded shaft extending to one end of the guide seat is provided with a sealing gasket corresponding to the lens body.

[0014] As a preferred solution of the traction device for digestive endoscopic surgery described in the present invention, the threaded shaft is further provided with a threaded ring that is threadedly connected to the transmission thread, and the end of the connecting rod away from the transmission slider is hingedly connected to the threaded ring, and the connecting rods are distributed in a circular array around the threaded ring. When the threaded ring slides on the threaded shaft, it drives the transmission slider and the guide slider to move closer to the observation hole.

[0015] As a preferred solution of the traction device for digestive endoscopic surgery described in the present invention, the adjustment component includes an adjustment handle bar movably connected in the protective cone cover and fixedly connected to the threaded shaft, and the adjustment handle bar is also provided with an anti-slip rubber sleeve for anti-slip.

[0016] As a preferred solution of the traction device for digestive endoscopic surgery described in the present invention, the end of the adjustment handle away from the mirror tube body is also movably connected to an adjustment knob, the adjustment knob is provided with anti-slip protrusions distributed in a circular array, and the adjustment knob is also provided with a mirror tube buckle for fixing the mirror tube body.

[0017] As a preferred solution of the traction device for digestive endoscopic surgery described in the present invention, the limiting component includes a lens sleeve that is sleeved on the outside of the lens body, and the lens sleeve is provided with symmetrically distributed protruding shafts that are adapted to the annular rotating groove. The lens sleeve is also provided with a conical cavity for limiting the movement of the lens body, and an anti-fouling lens cover is fixedly installed at one end of the lens sleeve extending into the guide seat.

[0018] In summary, the present invention has at least one of the following beneficial effects:

[0019] 1. The present invention realizes adaptive clamping of diseased tissues of different shapes and sizes through the design of the initial clamping end and the fixed clamping end, as well as the cooperation of the auxiliary clamping teeth, prevents the diseased tissue from slipping, and ensures the stability and reliability of the clamping process.

[0020] 2. This invention achieves precise control of the gripping assembly through the rotation of the threaded shaft and the axial sliding of the threaded ring. This design allows the operator to precisely control the movement distance of the gripping jaw body, and thus precisely control the gripping force, ensuring the accuracy and safety of the gripping process.

[0021] 3. The present invention realizes flexible adjustment of the angle of the lens body by adjusting the cooperation of the hand lever and the adjustment knob, so that the operator can adjust the angle of the lens body as needed during the operation to ensure the clarity and stability of the surgical image viewing angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 is a cutaway perspective view of the present invention;

[0025] Figure 3 It is a decomposition structure diagram of the present invention;

[0026] Figure 4 This is a diagram of the coordinated installation structure of the transmission assembly and the adjustment assembly of the present invention;

[0027] Figure 5 This is a diagram of the installation structure of the transmission assembly and the clamping assembly of the present invention:

[0028] Figure 6 This is a cross-sectional structural diagram of the protective cover body of the present invention:

[0029] Figure 7 This is a diagram of the installation structure of the guide slider and the clamping jaw body of the present invention:

[0030] Figure 8 For the present invention Figure 2 Schematic diagram of the enlarged structure of part A:

[0031] Figure 9 This is a cross-sectional structural diagram of the limiting component of the present invention.

[0032] Description of reference numerals:

[0033] 1. Protective housing; 101. Guide seat; 1011. Slide; 1012. Observation hole; 102. Protective cone cover; 103. Silicone cone sleeve; 104. Positioning ring; 1041. Positioning hole; 105. Reinforcement ring; 1051. Reinforcement hole; 2. Digestive endoscope body; 201. Lens body; 202. Mirror tube body; 3. Gripping assembly; 301. Guide slider; 3011. Articulated shaft; 302. Clamping claw body; 3021. Initial clamping end; 3022. Fixed clamping end; 303. Auxiliary Auxiliary clamping teeth; 4. Transmission assembly; 401. Transmission slider; 4011. Connecting rod; 402. Threaded shaft; 4021. Transmission thread; 4022. Annular groove; 4023. Sealing gasket; 403. Threaded ring; 5. Adjustment assembly; 501. Adjustment handle; 5011. Anti-slip rubber sleeve; 502. Adjustment knob; 5021. Anti-slip protrusion; 5022. Mirror tube buckle; 6. Limit assembly; 601. Lens sleeve; 6011. Protruding shaft; 6012. Conical cavity; 602. Anti-fouling mirror cover. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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 making creative efforts are within the scope of protection of the present invention.

[0035] The embodiment of the present invention discloses a traction device for digestive endoscopic surgery.

[0036] Example 1

[0037] Reference Figure 1-7, which is the first embodiment of the present invention, provides a traction device for digestive endoscopy surgery, which includes a protective shell 1, a digestive endoscope body 2 for observation is provided in the protective shell 1, a clamping assembly 3 driven by a transmission assembly 4 and used to clamp tissue is also provided in the protective shell 1, an adjustment assembly 5 for adjusting the angle is provided outside the transmission assembly 4, and a limit assembly 6 for limiting the movement of the digestive endoscope body 2 is also provided in the transmission assembly 4, and the protective shell 1 includes a guide seat located outside the digestive endoscope body 2 101, the guide seat 101 is provided with arranged and distributed sliding grooves 1011, and the guide seat 101 is also provided with an observation hole 1012 corresponding to the digestive endoscope body 2, and the sliding grooves 1011 are distributed in a circular array around the observation hole 1012, and the guide seat 101 is further provided with a funnel-shaped protective cone cover 102 at one end close to the digestive endoscope body 2. The digestive endoscope body 2 includes a lens body 201 and a mirror tube body 202, and the end of the lens body 201 away from the mirror tube body 202 extends to the guide seat 101 through the observation hole 1012.The gripping assembly 3 includes an L-shaped guide slider 301 distributed in a circular array around the observation hole 1012 and slidably connected in the slide groove 1011. The end of the guide slider 301 away from the mirror tube body 202 is provided with a hinge shaft 3011. The end of the guide slider 301 close to the hinge shaft 3011 is hingedly connected to a U-shaped clamping claw body 302 through the hinge shaft 3011. The two ends of the clamping claw body 302 are respectively provided with an initial clamping end 3021 and a fixed clamping end 3022, and the end of the clamping claw body 302 close to the initial clamping end 3021 is directed toward the observation hole 1012. 12 is tilted, the length of the initial clamping end 3021 is slightly longer than the length of the fixed clamping end 3022, and an auxiliary clamping tooth 303 integrally formed with the clamping claw body 302 is provided between the initial clamping end 3021 and the fixed clamping end 3022. The protective shell 1 is the shell of the entire device, which is used to protect the internal components and prevent external interference. The digestive endoscope body 2 is an important observation tool during surgery and is used to observe the situation in the surgical area in real time. When not in use, it can be pulled out of the protective shell 1, and the guide seat 101 can limit the sliding of the guide slider 301 through the slide groove 1011 The observation hole 1012 is used for the lens body 201 of the digestive endoscope body 2 to pass through, ensuring clear observation of the surgical area. The protective cone cover 102 is used to protect the lens body 201 of the digestive endoscope body 2 to prevent it from being damaged during the operation and reduce the resistance when removing the device. The lens body 201 is used to capture the image of the surgical area. The mirror tube body 202 is used to connect and control the movement of the lens body 201. The guide slider 301 is used to guide the movement of the clamping claw body 302. The hinge shaft 3011 is used to connect the clamping claw body 302 to achieve The opening and closing action of the clamping jaws, the clamping jaw body 302 is used to clamp the diseased tissue, the initial clamping end 3021 is used to preliminarily clamp the diseased tissue, and the fixed clamping end 3022 is used to fix the diseased tissue. When clamping the diseased tissue, the changes in the initial and initial clamping end 3021 diseased tissue are observed in real time through the lens body 201 in the observation hole 1012, so as to control the clamping force, and the auxiliary clamping teeth 303 are used to cooperate with the initial clamping end 3021 and the fixed clamping end 3022 to increase the overall clamping friction, prevent the diseased tissue from slipping, and better adapt to diseased tissues of different shapes and sizes.

[0038] The end of the guide seat 101 away from the mirror tube body 202 is also provided with a funnel-shaped silicone cone sleeve 103, and the silicone cone sleeve 103 is provided with a positioning ring 104 and a reinforcement ring 105 fixedly mounted on the guide seat 101, and the positioning ring 104 and the reinforcement ring 105 are distributed in concentric circles around the observation hole 1012, and the positioning ring 104 and the reinforcement ring 105 are respectively provided with a positioning hole 1041 and a reinforcement hole 1051 corresponding to the slide groove 1011, and the end of the guide slider 301 close to the hinge shaft 3011 passes through the guide seat 101 and is slidably connected in the reinforcement hole 1051. When the silicone cone sleeve 103 is in an extended state, it completely wraps the clamping assembly 3 to prevent it from being damaged during the process of placing it into the device during surgery. The positioning ring 104 and the reinforcement ring 105 are used to strengthen the structural strength of the guide seat 101, ensure its stability and reliability, and enable the guide slider 301 to slide smoothly in the reinforcement hole 1051, thereby improving the movement accuracy during the clamping process.

[0039] The transmission assembly 4 includes an L-shaped transmission slider 401 fixedly connected to the end of the guide slider 301 away from the hinge shaft 3011, and the end of the transmission slider 401 away from the guide slider 301 is provided with a connecting rod 4011 that is hingedly connected. The transmission slider 401 is used to achieve synchronous movement with the guide slider 301 to realize the opening and closing action of the clamping jaw body 302302, and the connecting rod 4011 is used to transmit the power of the transmission assembly 4 to the transmission slider 401.

[0040] The transmission assembly 4 also includes a threaded shaft 402 movably connected to the guide seat 101 and corresponding to the observation hole 1012. A transmission thread 4021 is provided at one end of the threaded shaft 402 extending into the lens tube body 202. An annular rotation groove 4022 corresponding to the limit assembly 6 is provided in the threaded shaft 402. A sealing gasket 4023 corresponding to the lens body 201 is provided at one end of the threaded shaft 402 extending into the guide seat 101. The threaded shaft 402 is hollow and can rotate in the guide seat 101 but cannot move. The sealing gasket 4023 is used to prevent liquid from entering the threaded shaft 402 to protect internal components.

[0041] The threaded shaft 402 is also provided with a threaded ring 403 that is threadedly connected to the transmission thread 4021, and the end of the connecting rod 4011 away from the transmission slider 401 is hingedly connected to the threaded ring 403, and the connecting rod 4011 is distributed in a circular array around the threaded ring 403. When the threaded ring 403 slides on the threaded shaft 402, the transmission slider 401 and the guide slider 301 are driven to move closer to the observation hole 1012. The transmission thread 4021 is used to cooperate with the threaded ring 403. When the threaded shaft 402 rotates, the threaded ring 403 moves along the axial direction of the threaded shaft 402 and realizes power transmission through the connecting rod 4011, driving the transmission slider 401 and the guide slider 301 to move synchronously, so that the device completes the clamping operation, thereby being able to accurately control the movement distance of the guide slider 301, and then control the clamping force.

[0042] When performing a digestive endoscopy operation, first fix the protective shell 1 on the operating table, insert the digestive endoscope body 2 into the protective shell 1, and install the lens body 201 in the hollow threaded shaft 402 through the limit component 6 and correspond to the observation hole 1012 in the guide seat 101 to ensure clear observation of the surgical area. In the process of sending the device into the patient's body, the extended silicone cone sleeve 103 is used to completely wrap the clamping component 3 to prevent it from being damaged during the operation. Ensure that the clamping claw body 302 is in the open state and prepare for the clamping operation. Adjust the position of the clamping component 3 through the lens body 201 , so that it is aligned with the diseased tissue after the cutting knife is cut, and by rotating the hollow threaded shaft 402 and preventing liquid from entering the interior of the threaded shaft 402 through the sealing gasket 4023, the threaded ring 403 in the protective cone cover 102 slides along the axial direction of the threaded shaft 402, and the power transmission of the connecting rod 4011 causes the transmission slider 401 and the guide slider 301 to move synchronously in the slide groove 1011, driving the transmission slider 401 and the guide slider 301 to move closer to the observation hole 1012 and slide smoothly in the reinforcement hole 1051, accurately controlling the movement distance of the clamping claw body 302 on the guide slider 301, and thus controlling the clamping force;

[0043] In the process of clamping the diseased tissue, the longer and more inclined initial clamping end 3021 first contacts the diseased tissue, and the changes of the initial clamping end 3021 and the diseased tissue are observed in real time through the lens body 201 in the observation hole 1012, so as to control the clamping force, and finally the initial clamping end 3021 and the fixed clamping end 3022 of the clamping jaw body 302 are gradually closed, and the auxiliary clamping teeth 303 cooperate with the initial clamping end 3021 and the fixed clamping end 3022 to increase the overall clamping friction, prevent the diseased tissue from slipping, better adapt to diseased tissues of different shapes and sizes, and ensure the accuracy and safety of the clamping process.

[0044] Example 2

[0045] Reference Figure 1-9 , which is the second embodiment of the present invention, differs from the first embodiment in that:

[0046] The adjustment assembly 5 includes an adjustment handle 501 movably connected in the protective cone cover 102 and fixedly connected to the threaded shaft 402. The adjustment handle 501 is also provided with an anti-slip rubber sleeve 5011 for anti-slipping. The adjustment handle 501 is used to manually adjust the rotation of the threaded shaft 402. The anti-slip rubber sleeve 5011 increases the friction between the operator's hand and the adjustment handle 501 to ensure that the hand will not slip during the adjustment process.

[0047] An adjustment knob 502 is movably connected to the end of the adjustment handle 501 away from the lens tube body 202. The adjustment knob 502 is provided with anti-slip protrusions 5021 distributed in a circular array. The adjustment knob 502 is also provided with a lens tube buckle 5022 for fixing the lens tube body 202. The adjustment knob 502 provides an additional adjustment mechanism for adjusting the angle of the lens body 201 connected to the lens tube body 202. The anti-slip protrusion 5021 further increases the friction between the operator's finger and the adjustment knob 502, ensuring stability during fine adjustment. The lens tube buckle 5022 ensures that the lens tube body 202 remains stable during the adjustment process, preventing it from shifting or shaking due to external forces. It can rotate synchronously with the lens tube body 202 and can be pulled out of the adjustment knob 502.

[0048] The limiting assembly 6 includes a lens sleeve 601 that is sleeved on the outside of the lens body 201, and the lens sleeve 601 is provided with protruding shafts 6011 that are symmetrically distributed and adapted to the annular groove 4022. A conical cavity 6012 is also provided in the lens sleeve 601 for limiting the movement of the lens body 201, and an anti-fouling lens cover 602 is fixedly installed on one end of the lens sleeve 601 extending into the guide seat 101. The lens sleeve 601 is used to protect the lens body 201 and prevent it from being hit or scratched during operation. The protruding shaft 6011 cooperates with the annular groove 4022 to limit the axial movement of the lens body 201, ensuring that it remains stable when the threaded shaft 402 rotates and does not rotate with the threaded shaft 402. The design of the conical cavity 6012 further fixes the lens body 201 and prevents it from unnecessary movement during operation. The anti-fouling lens cover 602 is used to protect the lens body 201 from being contaminated by liquids and dirt generated during surgery, thereby ensuring the clarity and service life of the lens body 201.

[0049] During the process of clamping the diseased tissue, the rotation of the threaded shaft 402 is manually adjusted by turning the adjustment handle 501, and the friction between the operator's hand and the adjustment handle 501 is increased by the anti-slip rubber sleeve 501 to ensure that the hand does not slip during the adjustment process. When the threaded shaft 402 rotates, the adjustment knob 502 is grasped, so that the lens sleeve 601 sleeved on the outside of the lens body 201 cooperates with the annular rotation groove 4022 through the protruding shaft 6011, limiting the axial movement of the lens body 201 and ensuring that it remains stable when the threaded shaft 402 rotates and does not rotate with the threaded shaft 402, thereby avoiding the reversal of the image viewing angle observed from the outside. The anti-fouling lens cover 602 protects the lens body 201 from contamination by liquids and dirt generated during the operation, ensuring the clarity and service life of the lens body 201:

[0050] At the same time, when the deflection angle of the lens body 201 needs to be adjusted, the adjustment knob 502 is rotated, and the friction between the operator's finger and the adjustment knob 502 is further increased by the anti-slip protrusion 5021, so that the mirror tube body 202 connected to the mirror tube buckle 5022 rotates synchronously, so that the lens body 201 drives the lens sleeve 601 to rotate in the annular groove 4022 under the restriction of the protruding shaft 6011, thereby adjusting the viewing angle of the surgical image.

[0051] The remaining structures are the same as those of Example 1.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A traction device for digestive endoscopic surgery, characterized by: The invention comprises a protective shell (1), wherein a digestive endoscope body (2) for observation is provided in the protective shell (1), a clamping assembly (3) driven by a transmission assembly (4) and used for clamping tissue is also provided in the protective shell (1), an adjusting assembly (5) for adjusting an angle is provided outside the transmission assembly (4), and a limiting assembly (6) for limiting the movement of the digestive endoscope body (2) is also provided in the transmission assembly (4); The protective shell (1) includes a guide seat (101) located outside the digestive endoscope body (2), the guide seat (101) is provided with arranged and distributed sliding grooves (1011), the guide seat (101) is also provided with an observation hole (1012) corresponding to the digestive endoscope body (2), and the sliding grooves (1011) are distributed in a ring array around the observation hole (1012), and the guide seat (101) is also provided with a funnel-shaped protective cone cover (102) at one end close to the digestive endoscope body (2); The digestive endoscope body (2) comprises a lens body (201) and a mirror tube body (202), and one end of the lens body (201) away from the mirror tube body (202) extends into the guide seat (101) through the observation hole (1012); The gripping assembly (3) comprises an L-shaped guide slider (301) distributed in a circular array around the observation hole (1012) and slidably connected in the slide groove (1011), the end of the guide slider (301) away from the mirror tube body (202) is provided with a hinge shaft (3011), and the end of the guide slider (301) close to the hinge shaft (3011) is hingedly connected to a U-shaped clamping claw body (302) through the hinge shaft (3011), and the clamping claw body (302) is provided with a U-shaped clamping claw body (302). The two ends of the body (302) are respectively provided with an initial clamping end (3021) and a fixed clamping end (3022), and the end of the clamping jaw body (302) close to the initial clamping end (3021) is inclined toward the observation hole (1012), the length of the initial clamping end (3021) is slightly longer than the length of the fixed clamping end (3022), and an auxiliary clamping tooth (303) integrally formed with the clamping jaw body (302) is further provided between the initial clamping end (3021) and the fixed clamping end (3022).

2. The traction device for digestive endoscopic surgery according to claim 1, characterized in that: The end of the guide seat (101) away from the mirror tube body (202) is further provided with a funnel-shaped silicone cone sleeve (103), and the silicone cone sleeve (103) is provided with a positioning ring (104) and a reinforcement ring (105) fixedly mounted on the guide seat (101), and the positioning ring (104) and the reinforcement ring (105) are both distributed in concentric circles around the observation hole (1012), and the positioning ring (104) and the reinforcement ring (105) are respectively provided with a positioning hole (1041) and a reinforcement hole (1051) corresponding to the slide groove (1011), and the end of the guide slider (301) close to the hinge shaft (3011) passes through the guide seat (101) and is slidably connected to the reinforcement hole (1051).

3. The traction device for digestive endoscopic surgery according to claim 1, characterized in that: The transmission assembly (4) comprises an L-shaped transmission slider (401) fixedly connected to the end of the guide slider (301) away from the hinge shaft (3011), and the end of the transmission slider (401) away from the guide slider (301) is provided with a connecting rod (4011) connected in a hinged manner.

4. The traction device for digestive endoscopic surgery according to claim 3, characterized in that: The transmission assembly (4) further comprises a threaded shaft (402) movably connected to the guide seat (101) and corresponding to the observation hole (1012); one end of the threaded shaft (402) extending into the lens tube body (202) is provided with a transmission thread (4021); an annular rotation groove (4022) corresponding to the position limiting assembly (6) is provided in the threaded shaft (402); and one end of the threaded shaft (402) extending into the guide seat (101) is provided with a sealing gasket (4023) corresponding to the lens body (201).

5. The traction device for digestive endoscopic surgery according to claim 4, characterized in that: The threaded shaft (402) is further provided with a threaded ring (403) threadedly connected to the transmission thread (4021), and one end of the connecting rod (4011) away from the transmission slider (401) is hingedly connected to the threaded ring (403). The connecting rods (4011) are distributed in a ring array around the threaded ring (403). When the threaded ring (403) slides on the threaded shaft (402), it drives the transmission slider (401) and the guide slider (301) to move closer to the observation hole (1012).

6. The traction device for digestive endoscopic surgery according to claim 1, characterized in that: The adjustment assembly (5) comprises an adjustment handle (501) movably connected in the protective cone cover (102) and fixedly connected to the threaded shaft (402), and the adjustment handle (501) is also provided with an anti-slip rubber sleeve (5011) for preventing slipping.

7. The traction device for digestive endoscopic surgery according to claim 6, characterized in that: An end of the adjusting handle (501) away from the mirror tube body (202) is also movably connected to an adjusting knob (502), the adjusting knob (502) being provided with anti-slip protrusions (5021) distributed in a circular array, and a mirror tube buckle (5022) for fixing the mirror tube body (202) is also provided in the adjusting knob (502).

8. The traction device for digestive endoscopic surgery according to claim 1, characterized in that: The limiting assembly (6) comprises a lens sleeve (601) sleeved on the outside of the lens body (201), and the lens sleeve (601) is provided with symmetrically distributed protruding shafts (6011) adapted to the annular rotating groove (4022), and the lens sleeve (601) is further provided with a conical cavity (6012) for limiting the movement of the lens body (201), and an anti-fouling lens cover (602) is fixedly mounted on one end of the lens sleeve (601) extending into the guide seat (101).

Images