Digestive tract tumor biopsy sampling device

Abstract

The invention discloses a digestive tract tumor biopsy sampling device, and particularly relates to the technical field of medical instruments, the digestive tract tumor biopsy sampling device comprises four pulley seats which are distributed in a rectangular shape, the upper ends of the two pulley seats on the same side are jointly and fixedly connected with inverted U-shaped supporting frames, and the lower ends of the horizontal parts of the two U-shaped supporting frames are jointly and slidably connected with a telescopic structure; the upper end of the telescopic structure is fixedly connected with a first electric telescopic rod, and the output end of the first electric telescopic rod and the lower end of the telescopic structure are jointly provided with a sampling structure. According to the alimentary canal tumor biopsy sampling device, the sampling structure is driven to descend under the action of the first electric telescopic rod, and the flaring sampling assembly is driven to be unfolded after the sampling structure descends to the position close to the incision of a patient through cooperation of a limiting plate and a limiting rod, so that the incision of the patient is expanded and supported; medical staff can conveniently observe and operate the tumor tissue, the tumor tissue is synchronously taken out under the action of the driving motor and the flaring sampling assembly, and the probability and risk of cross infection are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to a digestive tract tumor biopsy sampling device. Background Art

[0002] Gastrointestinal tumor biopsy sampling is a medical diagnostic procedure that obtains tissue samples from gastrointestinal tumors through endoscopy or other interventional means for laboratory pathological examination and analysis to confirm the nature, type and grade of the tumor, which is crucial for early diagnosis, treatment selection, efficacy evaluation and prognosis.

[0003] Chinese patent publication number CN118383810A discloses a digestive tract tumor biopsy sampling device, including a U-shaped plate, and also includes: a connecting plate, the connecting plate is horizontally arranged below the horizontal side of the U-shaped plate; an extended support assembly, the extended support assembly is arranged at the bottom of the connecting plate, and the extended support assembly is used to extend the incision near the tumor; a flushing and cleaning assembly, the flushing and cleaning assembly is arranged below the connecting plate, and the flushing and cleaning assembly is used to flush and clean the tumor area; and a resection sampling assembly, the resection sampling assembly is arranged at the bottom of the connecting plate.

[0004] Although the sampling device in the above patent document can sample and preserve tumor tissue, in actual use, the device is unable to support and expand the sampling blade. The device directly enters the sampling point, which not only affects the operation of medical staff, but also affects the accuracy of sampling. Summary of the invention

[0005] The main purpose of the present invention is to provide a digestive tract tumor biopsy sampling device, which can effectively solve the problem that the existing device cannot expand the incision and affects the operation and vision of medical staff and affects the sampling accuracy.

[0006] To achieve the above object, the technical solution adopted by the present invention is: A digestive tract tumor biopsy sampling device comprises four pulley seats distributed in a rectangular shape, wherein the upper ends of two pulley seats on the same side are commonly fixedly connected to an inverted U-shaped support frame, the lower ends of the horizontal parts of the two U-shaped support frames are commonly slidably connected to a telescopic structure, the upper end of the telescopic structure is fixedly connected to an electric telescopic rod 1, and a sampling structure is commonly provided at the output end of the electric telescopic rod 1 and the lower end of the telescopic structure.

[0007] Preferably, the telescopic structure includes a primary groove which is symmetrically distributed on the left and right and is slidably connected to the lower end of the horizontal part of the U-shaped support frame on the same side, the inner surfaces of the two primary grooves are respectively slidably connected to the secondary grooves, the inner surfaces of the two secondary grooves are commonly slidably connected to a mounting seat, the upper end of the mounting seat is fixedly connected to the lower end of the electric telescopic rod, and an output end of the electric telescopic rod passes through the upper end of the mounting seat, extends to the lower end of the mounting seat, and is fixedly connected to the upper end of the sampling structure.

[0008] Preferably, the sampling structure includes limit rods symmetrically distributed front and back and fixedly connected to the lower end of the mounting seat, the outer surfaces of the two limit rods and the outer surface of the output end of the electric telescopic rod are slidably connected to a limit plate, the lower end of the output end of the electric telescopic rod is fixedly connected to a flaring sampling assembly, the front end of the flaring sampling assembly is fixedly connected to a driving motor, and the lower end of the limit plate is symmetrically rotatably connected to a connecting rod three rotatably connected to the flaring sampling assembly.

[0009] Preferably, the flaring sampling assembly includes an installation box fixedly connected to an output end of the electric telescopic rod, the front end of the installation box is fixedly connected to the driving motor, the left and right ends of the installation box are symmetrically provided with transverse flaring components that are rotationally connected to three adjacent connecting rods, the front and right ends of the installation box are symmetrically provided with longitudinal flaring components that are transmission connected to the transverse flaring components on either side, and the inner cavity of the installation box is provided with a sampling component that is transmission connected to the driving motor.

[0010] Preferably, the transverse expansion component includes two hinged seats symmetrically distributed front to back and fixedly connected to adjacent end faces of the installation box, the inner surfaces of the two hinged seats are rotatably connected to a support plate, an airbag is provided on the side of the support plate away from the hinged seat, a plurality of slide grooves connected to the airbag are linearly distributed on the side of the hinged seat close to the installation box, a plurality of slide grooves are slidably connected to the inner surfaces of the slide grooves, a plurality of contact rods are fixedly connected to the side of the contact rods close to the airbags with a compression spring fixedly connected to the inner wall of the slide groove, and a side of the contact rod away from the compression spring is tightly attached to the end face of the adjacent installation box.

[0011] Preferably, the upper ends of the two support plates are rotatably connected to the adjacent connecting rods 3, and the front and rear sides of one of the support plates are fixedly connected to a bevel gear 1 that is transmission-connected to the longitudinal flaring component.

[0012] Preferably, the longitudinal expansion component includes an articulated seat 2 fixedly connected to the end face of an adjacent mounting box, the inner surface of the articulated seat 2 is rotatably connected to a rotating seat, the inner surface of the rotating seat is symmetrically rotatably connected to a connecting rod 1, and the two connecting rods 1 are rotatably connected to an arc-shaped notch plate at one end away from the rotating seat, the two arc-shaped notch plates are both made of flexible material and their rotation direction is unidirectional, and the side of the rotating seat close to the bevel gear 1 passes through the opposite side of the articulated seat 2 and is fixedly connected to a bevel gear 2 meshing with the bevel gear 1.

[0013] Preferably, a cross slider is slidably connected to the inner surface of the rotating seat, and one end of the cross slider close to the hinged seat is fixedly connected to a compression spring 2 fixedly connected to the inner cavity of the rotating seat, and the upper end of the cross slider is fixedly connected to a contact rod 2, and the side of the contact rod 2 close to the installation box is fitted with the surface of the installation box through a roller, and the end of the cross slider away from the compression spring 2 is fixedly connected to a T-block, and the end of the T-block away from the cross slider is symmetrically rotatably connected to a connecting rod 2 rotatably connected to the adjacent connecting rod 1.

[0014] Preferably, the sampling component includes a threaded rod rotatably connected to the inner surface of the installation box and fixedly connected to the output end of the driving motor, the outer surface of the threaded rod is threadedly connected with a threaded block that fits the top wall of the inner surface of the installation box, the front and rear ends of the threaded block are symmetrically and fixedly connected with L-shaped rods, the lower side of the vertical part of the L-shaped rod is rotatably connected with a sliding rod that is slidably connected to the inner walls of the left and right sides of the installation box, the outer surfaces of the two sliding rods are rotatably connected with sampling shovels, the two sampling shovels are in an N-shape relative to each other, and the inner surfaces of the upper bends are slidably connected with a grooved block, and the upper end of the grooved block is fixedly connected to an electric telescopic rod 2 that is fixedly connected to the lower end of the threaded block.

[0015] Preferably, an airbag 2 is provided on the lower side of the sampling shovel, and a cutting knife is slidably connected to the lower part of one end of the sampling shovel close to each other and located above the airbag 2. The cutting knife and the inner surface of the adjacent sampling shovel are commonly and fixedly connected with two compression springs 3 symmetrically distributed on the left and right. The airbag 2 is connected to the chamber where the cutting knife is located through a pipe, and the cutting knives on both sides are staggered.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention utilizes the function of a pulley seat and a U-shaped support frame to move the equipment above the bed, and expands the telescopic structure by pulling the U-shaped support frame so that the mounting seat is above the sampling point, and utilizes the function of an electric telescopic rod to drive the sampling structure to descend so that the expanded sampling assembly enters the sampling range, and drives the expanded sampling assembly to expand after descending to the vicinity of the patient's incision through the cooperation of a limit plate and a limit rod, so as to expand and support the patient's incision, making it convenient for medical staff to observe and operate tumor tissue, and synchronously utilizes the function of a driving motor and the expanded sampling assembly to remove the tumor tissue, thereby realizing automatic sampling, reducing the participation of medical staff, and reducing the probability and risk of cross infection.

[0017] 2. The present invention cooperates with the transverse expansion component through the connection rod three and, after descending to a certain height, limits the limit plate through the limit rod so that the limit plate pulls the transverse expansion component through the connection rod three, prompting the transverse expansion component to transform from an inclined state to a horizontal state, so that the airbag 1 contacts the patient's incision. At the same time, the rotation of the support plate is used to cause the contact rod 1 to lock into the slide groove, and the air in the slide groove is forced into the airbag 1, thereby driving the airbag 1 to swell, avoiding hard contact with the tissue at the patient's incision to cause secondary injury.

[0018] 3. The present invention further utilizes the cooperation between bevel gear 1 and bevel gear 2 to synchronously drive the rotating seat from an inclined state to a horizontal state during the movement of the lateral expansion component, thereby prompting the arc-shaped recessed plate to contact the patient's front and rear tissues of the incision and support them. Synchronously, in order to avoid affecting the operating space and line of sight of medical staff, during the movement of the rotating seat from a vertical state to a horizontal state, the articulated seat 2 will be abutted by the mounting box and push the cross slider to move toward the T-block, thereby prompting the T-block to push the connecting rod 2 to drive the connecting rod 1 to rotate in a direction away from each other, thereby expanding the incision tissue and avoiding affecting the medical staff's observation and operation of the tumor tissue.

[0019] 4. The present invention utilizes the cooperation of a driving motor and a threaded rod to drive the threaded block to slide in the installation box, thereby driving the sampling shovel to different depths for convenient excision and sampling of tumor tissues at different positions, and at the same time utilizes the action of the second electric telescopic rod to drive the groove block to move up and down, thereby utilizing the sliding of the groove block and the sampling shovel and cooperating with the limiting of the sampling shovel by the sliding rod to drive the sampling shovel to open and close, forming a grasping effect, grasping the tumor tissue into the sampling shovel, and cutting off the tumor tissue through the action of the second airbag and the cutting knife, retaining the sample inside the sampling shovel for easy removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the telescopic structure and the sampling structure of the present invention; Figure 3 It is a schematic diagram of the top view of the expanded sampling assembly of the present invention; Figure 4 It is a bottom view structural schematic diagram of the expanded sampling assembly of the present invention; Figure 5 It is a schematic structural diagram of the transverse expansion component of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged local structure at center A; Figure 7 It is a schematic structural diagram of the longitudinal expansion component of the present invention; Figure 8is a schematic cross-sectional structure diagram of the longitudinal expansion component of the present invention; Fig. 9 For the present invention Figure 8 A magnified schematic diagram of the local structure at B in the middle; Fig.10 It is a schematic diagram of the structure of the sampling component of the present invention; Fig.11 For the present invention Fig.10 Enlarged schematic diagram of the local structure at point C in the middle.

[0021] In the figure: 1. pulley seat; 2. U-shaped support frame; 3. telescopic structure; 31. primary slot; 32. secondary slot; 33. mounting seat; 4. electric telescopic rod 1; 5. sampling structure; 51. limit plate; 52. limit rod; 53. expansion sampling assembly; 531. mounting box; 532. transverse expansion component; 5321. support plate; 5322. bevel gear 1; 5323. airbag 1; 5324. hinge seat 1; 5325. contact rod 1; 5326. compression spring 1; 5327. slide slot; 533. longitudinal expansion component; 5330. compression spring 2; 5331. hinge seat 2; 5332, bevel gear 2; 5333, contact rod 2; 5334, rotating seat; 5335, connecting rod 1; 5336, arc notch plate; 5337, connecting rod 2; 5338, T-block; 5339, cross slider; 534, sampling component; 5340, compression spring 3; 5341, airbag 2; 5342, threaded rod; 5343, threaded block; 5344, L-shaped rod; 5345, sliding rod; 5346, sampling shovel; 5347, cutting knife; 5348, electric telescopic rod 2; 5349, groove block; 54, connecting rod 3; 55, driving motor. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] Embodiment 1, as Figure 1 As shown, a digestive tract tumor biopsy sampling device comprises four pulley seats 1 distributed in a rectangular shape, the upper ends of the two pulley seats 1 on the same side are commonly fixedly connected with an inverted U-shaped support frame 2, the lower ends of the horizontal parts of the two U-shaped support frames 2 are commonly slidably connected with a telescopic structure 3, the upper end of the telescopic structure 3 is fixedly connected with an electric telescopic rod 4, and the output end of the electric telescopic rod 4 and the lower end of the telescopic structure 3 are commonly provided with a sampling structure 5.

[0024] It should be noted that a universal wheel is installed under the pulley seat 1, and a brake pad is also installed in the universal wheel. After moving to a predetermined position, the universal wheel can be locked to make it stay at the designated location. This structure has been widely used in the prior art, and is mostly used in movable cabinets, whiteboards and other equipment. It is a mature prior art. In the present invention, it is only used to realize the function of driving the U-shaped support frame 2, the telescopic structure 3, and the sampling structure 5 to move, and its specific structure and operating principle are not displayed or elaborated.

[0025] Furthermore, in order to be suitable for sampling operations at different positions, referring to the U-shaped support frame 2 in the figure, the telescopic structure 3 includes a primary groove 31 symmetrically distributed and slidably connected to the lower end of the horizontal part of the U-shaped support frame 2 on the same side, the inner surfaces of the two primary grooves 31 are respectively slidably connected to the secondary grooves 32, and the inner surfaces of the two secondary grooves 32 are commonly slidably connected to the mounting seat 33, the upper end of the mounting seat 33 is fixedly connected to the lower end of the electric telescopic rod 4, and the output end of the electric telescopic rod 4 passes through the upper end of the mounting seat 33 and extends to the lower end of the mounting seat 33 and is fixedly connected to the upper end of the sampling structure 5.

[0026] The primary groove 31, the secondary groove 32, and the mounting seat 33 form a telescopic member capable of multi-stage sliding, so that the U-shaped support frame 2 can be unfolded to different lengths. Simultaneously, the primary groove 31 can also slide in the U-shaped support frame 2, so that it can be in different lateral positions, so as to meet the sampling requirements at different positions; At the same time, the primary slot 31, the secondary slot 32, and the mounting seat 33 can also be retracted to a minimum size, and an opening matching the shape of the electric telescopic rod 4 is provided on the upper part thereof to facilitate storage when not in use and reduce the occupied space.

[0027] Furthermore, in order to achieve sampling of digestive tract tumors, referring to the U-shaped support frame 2 in Figure, the sampling structure 5 includes limit rods 52 that are symmetrically distributed front and back and fixedly connected to the lower end of the mounting seat 33, the outer surfaces of the two limit rods 52 are slidably connected to the limit plate 51 with the outer surface of the output end of the electric telescopic rod 4, the lower end of the output end of the electric telescopic rod 4 is fixedly connected to a flaring sampling component 53, the front end of the flaring sampling component 53 is fixedly connected to a driving motor 55, and the lower end of the limit plate 51 is symmetrically rotatably connected to a connecting rod 3 54 that is rotatably connected to the flaring sampling component 53.

[0028] Due to the traction of the connecting rod three 54, the limit plate 51 can follow the expansion sampling component 53 to descend in the initial state. After descending to a certain height, the limit plate 51 is blocked by the limit rod 52 and stops moving. However, the expansion sampling component 53 can continue to descend under the action of the electric telescopic rod 4. At this time, the expansion sampling component 53 can be driven to change its state by the traction of the connecting rod three 54.

[0029] During the operation of this embodiment, the pulley seat 1 and the U-shaped support frame 2 are first used to move the equipment above the bed, and the telescopic structure 3 is unfolded by pulling the U-shaped support frame 2, so that the mounting seat 33 is above the sampling point, and the sampling structure 5 is driven to descend by the electric telescopic rod 1 4 so that the expanded sampling component 53 enters the sampling range, and the expansion sampling component 53 is driven to expand after descending to the vicinity of the patient's incision through the cooperation of the limit plate 51 and the limit rod 52, so as to expand and support the patient's incision, so as to facilitate medical staff to observe and operate the tumor tissue, and synchronously, the tumor tissue is taken out by the driving motor 55 and the expanded sampling component 53, so as to realize automatic sampling, reduce the participation of medical staff, and reduce the probability and risk of cross infection.

[0030] Embodiment 2. Based on embodiment 1, this embodiment cooperates with connecting rod 3 54 and transverse expansion part 532. After descending to a certain height, the limiting rod 52 limits the limiting plate 51 so that the limiting plate 51 pulls the transverse expansion part 532 through connecting rod 3 54, prompting the transverse expansion part 532 to transform from an inclined state to a horizontal state, so that the airbag 1 5323 contacts the patient's incision. At the same time, the rotation of the support plate 5321 is used to cause the contact rod 1 5325 to lock into the slide groove 5327, and compress the air in the slide groove 5327 into the airbag 1 5323, thereby driving the airbag 1 5323 to swell, avoiding hard contact with the tissue at the patient's incision to cause secondary injury.

[0031] Specifically, to expand the sampling blade and enter the sampling area for sampling, refer to Figure 3 and Figure 4 The flaring sampling assembly 53 includes an installation box 531 fixedly connected to the output end of the electric telescopic rod 4, the front end of the installation box 531 is fixedly connected to the driving motor 55, the left and right ends of the installation box 531 are symmetrically provided with transverse flaring parts 532 rotatably connected to the adjacent connecting rod 3 54, the front and right ends of the installation box 531 are symmetrically provided with longitudinal flaring parts 533 transmission-connected to the transverse flaring parts 532 on either side, and the inner cavity of the installation box 531 is provided with a sampling part 534 transmission-connected to the driving motor 55.

[0032] The installation box 531 moves downward as the electric telescopic rod 4 continues to extend. After reaching the sampling position, the connecting rod 3 54 cooperates with the transverse expanding component 532 to drive the transverse expanding component 532 to transform to a horizontal state, and simultaneously drives the longitudinal expanding component 533 to transform to a horizontal state. In this process, the transverse expanding component 532 and the longitudinal expanding component 533 are used to support and expand the tissues around the patient's sampling point to avoid affecting the operation and observation of medical staff.

[0033] Further, in order to realize the expansion of the lateral part of the blade, see Figure 5 and Figure 6 The transverse expansion component 532 includes two hinge seats 5324 symmetrically distributed front and back and fixedly connected to the adjacent end faces of the installation box 531, the inner surfaces of the two hinge seats 5324 are rotatably connected with a support plate 5321, an air bag 5323 is arranged on the side of the support plate 5321 away from the hinge seat 5324, a plurality of slide grooves 5327 connected to the air bag 5323 are linearly distributed on the side of the hinge seat 5324 close to the installation box 531, and the inner surfaces of the plurality of slide grooves 5327 are slidably connected with contact rods 5325, and the sides of the plurality of contact rods 5325 close to the air bag 5323 are fixedly connected with a compression spring 5326 fixedly connected to the inner wall of the slide groove 5327, and the side of the contact rod 5325 away from the compression spring 5326 is in close contact with the end face of the adjacent installation box 531.

[0034] After the limit plate 51 stops moving, the connecting rod 3 54 stops moving with it, and at this time the support plate 5321 will continue to move downward with the installation box 531, thereby pulling the support plate 5321 to move from the downward tilted state to the horizontal state; At this time, the airbag 5323 is in contact with the patient's tissue. Synchronously, due to the rotation of the support plate 5321, the distance between the contact rod 5325 and the mounting box 531 gradually becomes shorter, and the contact rod 5325 will be locked into the slide groove 5327. A sealing ring is provided on the outer surface of the contact rod 5325. During the movement in the box, the air in the slide groove 5327 will be compressed to enter the airbag 5323, thereby promoting the expansion of the airbag 5323, thereby further supporting the tissue around the sampling point while avoiding damage caused by hard contact.

[0035] Further, in order to realize that after descending to a certain height, the support plate 5321 is driven to rotate to a horizontal state, and the longitudinal expansion part 533 is driven to expand in the forward and backward directions simultaneously, refer to Figure 5 and Figure 7 The upper ends of the two support plates 5321 are rotatably connected to the adjacent connecting rod three 54, and the front and rear sides of one of the support plates 5321 are fixedly connected to a bevel gear 5322 that is transmission-connected to the longitudinal expansion component 533.

[0036] Embodiment 3: Based on embodiment 2, this embodiment further utilizes the cooperation between bevel gear 1 5322 and bevel gear 2 5332 to synchronously drive the rotating seat 5334 from an inclined state to a horizontal state during the movement of the transverse expansion component 532, thereby prompting the arc-shaped recessed plate 5336 to contact the patient's front and rear tissues of the incision and support them. Simultaneously, in order to avoid affecting the medical staff's operating space and line of sight, during the movement of the rotating seat 5334 to the horizontal state, the articulated seat 2 5331 will be abutted by the mounting box 531 and push the cross slider 5339 to move toward the T-block 5338, thereby prompting the T-block 5338 to push the connecting rod 2 5337 to drive the connecting rod 1 5335 to rotate in a direction away from each other, thereby expanding the incision tissue to avoid affecting the medical staff's observation and operation of the tumor tissue.

[0037] Specifically, to achieve support and expansion of the blade in the front and rear directions, refer to Figure 7 , Figure 8 and Fig. 9 The longitudinal expansion component 533 includes an articulated seat 5331 fixedly connected to the end face of the adjacent mounting box 531, the inner surface of the articulated seat 5331 is rotatably connected to a rotating seat 5334, the inner surface of the rotating seat 5334 is symmetrically rotatably connected to a connecting rod 5335, the two connecting rods 5335 are rotatably connected to an arcuate notch plate 5336 at one end away from the rotating seat 5334, the two arcuate notch plates 5336 are both made of flexible material and their rotation direction is unidirectional, the side of the rotating seat 5334 close to the bevel gear 1 5322 passes through the opposite side of the articulated seat 5331 and is fixedly connected to a bevel gear 2 5332 meshing with the bevel gear 1 5322.

[0038] During the rotation of the support plate 5321, the bevel gear 1 5322 will be driven to rotate synchronously, and the bevel gear 1 5322 will mesh with the bevel gear 2 5332, thereby synchronously driving the rotating seat 5334 to rotate, and the connecting rod 1 5335 connected to the rotating seat 5334 together with the arc-shaped notch plate 5336 will be transformed from an inclined downward state to a horizontal state, and contact the tissues before and after the sampling point. The arc-shaped notch plate 5336 is made of flexible silicone material, which can reduce damage to human tissues when supporting the tissues.

[0039] Further, in order to achieve the traction while expanding forward and backward, the arc-shaped notch plate 5336 increases the range of action on the blade to avoid affecting the sight and operating space of the medical staff, see Figure 8 and Fig. 9A cross slider 5339 is slidably connected to the inner surface of the rotating seat 5334, and one end of the cross slider 5339 close to the hinged seat 2 5331 is fixedly connected to the compression spring 2 5330 fixedly connected to the inner cavity of the rotating seat 5334, and the upper end of the cross slider 5339 is fixedly connected to the contact rod 2 5333, and the side of the contact rod 2 5333 close to the installation box 531 is fitted with the surface of the installation box 531 through a roller, and the end of the cross slider 5339 away from the compression spring 2 5330 is fixedly connected to the T-block 5338, and the end of the T-block 5338 away from the cross slider 5339 is symmetrically rotatably connected to the connecting rod 2 5337 rotatably connected to the adjacent connecting rod 1 5335.

[0040] During the rotation of the rotating seat 5334, the contact rod 2 5333 on its upper part is always in contact with the side wall of the installation box 531, and will be pushed in the direction away from the installation box 531. At this time, the cross slider 5339 connected to it will slide in the rotating seat 5334 in the direction away from the installation box 531, and push the connecting rod 2 5337 on both sides to move through the T-block 5338. Since one end of the connecting rod 2 5337 is rotatably connected to the connecting rod 1 5335, during the movement, the connecting rod 1 5335 will be pushed to rotate around the connection point with the rotating seat 5334, thereby driving the connecting rod 1 5335 to expand to both sides, expanding the operating range, and reducing the obstruction of the medical staff's line of sight.

[0041] Embodiment 4. Based on embodiment 3, this embodiment utilizes the cooperation of the driving motor 55 and the threaded rod 5342 to drive the threaded block 5343 to slide in the installation box 531, thereby driving the sampling shovel 5346 to different depths to facilitate the excision and sampling of tumor tissues at different positions. At the same time, the electric telescopic rod 5348 is used to drive the groove block 5349 to move up and down, thereby utilizing the sliding of the groove block 5349 and the sampling shovel 5346 and cooperating with the sliding rod 5345 to limit the sampling shovel 5346 to drive the sampling shovel 5346 to open and close, forming a grasping effect, grasping the tumor tissue into the sampling shovel 5346, and cutting the tumor tissue through the action of the airbag 5341 and the cutting knife 5347, retaining the sample inside the sampling shovel 5346 for easy removal.

[0042] Specifically, to achieve the sampling of tumor tissue, refer to Fig.10 and Fig.11The sampling component 534 includes a threaded rod 5342 that is rotatably connected to the inner surface of the installation box 531 and fixedly connected to the output end of the driving motor 55. The outer surface of the threaded rod 5342 is threadedly connected to a threaded block 5343 that fits the top wall of the inner surface of the installation box 531. The front and rear ends of the threaded block 5343 are symmetrically fixedly connected to L-shaped rods 5344. The lower side of the vertical part of the L-shaped rod 5344 is rotatably connected to sliding rods 5345 that are slidably connected to the inner walls of the left and right sides of the installation box 531. The outer surfaces of the two sliding rods 5345 are rotatably connected to sampling shovels 5346. The two sampling shovels 5346 are N-shaped relative to each other, and the inner surfaces of the upper bends are slidably connected to a groove block 5349. The upper end of the groove block 5349 is fixedly connected to an electric telescopic rod 5348 that is fixedly connected to the lower end of the threaded block 5343.

[0043] First, the threaded rod 5342 rotates under the action of the driving motor 55, which drives the threaded block 5343 to slide back and forth in the installation box 531, thereby driving other parts at the bottom to be at different depths, so as to be suitable for sampling operations at different positions; When reaching the predetermined position, the piston rod of the second electric telescopic rod 5348 extends out, driving the groove block 5349 to descend, thereby pressing the sampling shovel 5346 to rotate around the sliding rod 5345, and the clamping claw formed by the sampling shovel 5346 opens. When the piston rod of the second electric telescopic rod 5348 is retracted, the lower side of the sampling shovel 5346 merges together, and the tumor tissue capsule falls within the range of the sampling shovel 5346.

[0044] Further, in order to realize the cutting of the tumor tissue and the residual tissue so that the obtained tumor tissue falls between the two sampling shovels 5346 and is taken out of the patient's body by the electric telescopic rod 14, refer to Fig.11 An airbag 2 5341 is provided at the lower side of the sampling shovel 5346, and a cutting knife 5347 is slidably connected to the lower part of the end of the sampling shovel 5346 that is close to each other and is located above the airbag 2 5341. The cutting knife 5347 and the inner surface of the adjacent sampling shovel 5346 are commonly and fixedly connected with two compression springs 3 5340 that are symmetrically distributed on the left and right. The airbag 2 5341 and the chamber where the cutting knife 5347 is located are connected by a pipeline, and the cutting knives 5347 on both sides are staggered.

[0045] When the sampling shovels 5346 on both sides are merged together, the airbag 2 5341 is pressurized, and the gas therein enters the chamber of the cutting knife 5347 along the pipeline, and pushes the cutting knife 5347 to move outward. The tumor tissue is cut off by the inward approach of the cutting knives 5347 on both sides. At this time, the tumor tissue sample can be taken out by retracting the electric telescopic rod 1 4.

[0046] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A digestive tract tumor biopsy sampling device, comprising four pulley seats (1) arranged in a rectangular shape, Features: The upper ends of the two pulley seats (1) on the same side are commonly fixedly connected to an inverted U-shaped support frame (2), the lower ends of the horizontal parts of the two U-shaped support frames (2) are commonly slidably connected to a telescopic structure (3), the upper end of the telescopic structure (3) is fixedly connected to an electric telescopic rod (4), and the output end of the electric telescopic rod (4) and the lower end of the telescopic structure (3) are commonly provided with a sampling structure (5).

2. A digestive tract tumor biopsy sampling device according to claim 1, Features: The telescopic structure (3) comprises a primary groove (31) symmetrically distributed on the left and right and slidably connected to the lower end of the horizontal part of the U-shaped support frame (2) on the same side, the inner surfaces of the two primary grooves (31) are respectively slidably connected to the secondary grooves (32), and the inner surfaces of the two secondary grooves (32) are jointly slidably connected to the mounting seat (33), the upper end of the mounting seat (33) is fixedly connected to the lower end of the electric telescopic rod (4), and the output end of the electric telescopic rod (4) passes through the upper end of the mounting seat (33) and extends to the lower end of the mounting seat (33) and is fixedly connected to the upper end of the sampling structure (5).

3. A digestive tract tumor biopsy sampling device according to claim 2, Features: The sampling structure (5) comprises limit rods (52) symmetrically distributed front and rear and fixedly connected to the lower end of the mounting seat (33); the outer surfaces of the two limit rods (52) and the outer surface of the output end of the electric telescopic rod (4) are slidably connected to a limit plate (51); the lower end of the output end of the electric telescopic rod (4) is fixedly connected to a flaring sampling assembly (53); the front end of the flaring sampling assembly (53) is fixedly connected to a driving motor (55); and the lower end of the limit plate (51) is symmetrically rotatably connected to a connecting rod (54) rotatably connected to the flaring sampling assembly (53).

4. A digestive tract tumor biopsy sampling device according to claim 3, Features: The flaring sampling assembly (53) comprises a mounting box (531) fixedly connected to the output end of the electric telescopic rod one (4); the front end of the mounting box (531) is fixedly connected to the driving motor (55); the left and right ends of the mounting box (531) are symmetrically provided with transverse flaring components (532) rotatably connected to the adjacent connecting rod three (54); the front and right ends of the mounting box (531) are symmetrically provided with longitudinal flaring components (533) drivingly connected to the transverse flaring components (532) on either side; and the inner cavity of the mounting box (531) is provided with a sampling component (534) drivingly connected to the driving motor (55).

5. A digestive tract tumor biopsy sampling device according to claim 4, Features: The transverse expansion component (532) comprises two hinge seats (5324) symmetrically distributed front and back and fixedly connected to the adjacent end faces of the installation box (531); the inner surfaces of the two hinge seats (5324) are rotatably connected to a support plate (5321); a side of the support plate (5321) away from the hinge seat (5324) is provided with an air bag (5323); a side of the hinge seat (5324) close to the installation box (531) is linearly distributed with a plurality of A slide groove (5327) is connected to the airbag 1 (5323), and the inner surfaces of several of the slide grooves (5327) are slidably connected to contact rods 1 (5325), and the sides of several of the contact rods 1 (5325) close to the airbag 1 (5323) are fixedly connected to compression springs 1 (5326) fixedly connected to the inner wall of the slide groove (5327), and the side of the contact rods 1 (5325) away from the compression springs 1 (5326) is in close contact with the end face of the adjacent installation box (531).

6. A digestive tract tumor biopsy sampling device according to claim 5, Features: The upper ends of the two support plates (5321) are rotatably connected to the adjacent connecting rod three (54), and the front and rear sides of one of the support plates (5321) are fixedly connected to a bevel gear one (5322) that is transmission-connected to the longitudinal expansion component (533).

7. A digestive tract tumor biopsy sampling device according to claim 6, Features: The longitudinal expansion component (533) comprises an articulated seat 2 (5331) fixedly connected to the end surface of the adjacent installation box (531); the inner surface of the articulated seat 2 (5331) is rotatably connected to a rotating seat (5334); the inner surface of the rotating seat (5334) is symmetrically rotatably connected to a connecting rod 1 (5335); the ends of the two connecting rods 1 (5335) away from the rotating seat (5334) are rotatably connected to an arc-shaped notch plate (5336); the two arc-shaped notch plates (5336) are both made of flexible material and their rotation directions are both unidirectional; the side of the rotating seat (5334) close to the bevel gear 1 (5322) passes through the opposite side of the articulated seat 2 (5331) and is fixedly connected to a bevel gear 2 (5332) meshing with the bevel gear 1 (5322).

8. A digestive tract tumor biopsy sampling device according to claim 7, Features: A cross slider (5339) is slidably connected to the inner surface of the rotating seat (5334); one end of the cross slider (5339) close to the second hinge seat (5331) is fixedly connected to a second compression spring (5330) fixedly connected to the inner cavity of the rotating seat (5334); the upper end of the cross slider (5339) is fixedly connected to a second contact rod (5333); a side of the second contact rod (5333) close to the installation box (531) is in contact with the surface of the installation box (531) via a roller; one end of the cross slider (5339) away from the second compression spring (5330) is fixedly connected to a T-shaped block (5338); and one end of the T-shaped block (5338) away from the cross slider (5339) is symmetrically rotatably connected to a second connecting rod (5337) rotatably connected to an adjacent first connecting rod (5335).

9. A digestive tract tumor biopsy sampling device according to claim 4, Features: The sampling component (534) comprises a threaded rod (5342) rotatably connected to the inner surface of the installation box (531) and fixedly connected to the output end of the driving motor (55); the outer surface of the threaded rod (5342) is threadedly connected to a threaded block (5343) that fits the top wall of the inner surface of the installation box (531); the front and rear ends of the threaded block (5343) are symmetrically fixedly connected to L-shaped rods (5344); the lower side of the vertical part of the L-shaped rod (5344) is rotatably connected to sliding rods (5345) that are slidably connected to the inner walls of the left and right sides of the installation box (531); the outer surfaces of the two sliding rods (5345) are rotatably connected to sampling shovels (5346); the two sampling shovels (5346) are N-shaped relative to each other, and the inner surfaces of the upper bending parts thereof are slidably connected to a groove block (5349); the upper end of the groove block (5349) is fixedly connected to an electric telescopic rod 2 (5348) that is fixedly connected to the lower end of the threaded block (5343).

10. A digestive tract tumor biopsy sampling device according to claim 9, Features: The lower side of the sampling shovel (5346) is provided with an airbag 2 (5341), and the lower part of the mutually adjacent ends of the sampling shovels (5346) located above the airbag 2 (5341) is slidably connected with a cutting knife (5347), and the cutting knife (5347) and the inner surface of the adjacent sampling shovel (5346) are fixedly connected with two compression springs 3 (5340) symmetrically distributed on the left and right, and the chamber where the airbag 2 (5341) and the cutting knife (5347) are located is connected through a pipeline, and the cutting knives (5347) on both sides are staggeredly distributed.

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