Biopsy sampler for digestive system department

Abstract

The invention relates to the technical field of biopsy sampling, and discloses a gastroenterology biopsy sampler which comprises a biopsy sampling head and a gastroscope head body located on one side of the biopsy sampling head, a sampling hole is formed in the gastroscope head body, and the biopsy sampling head is slidably connected into the sampling hole. The biopsy sampling head is internally provided with a sampling port, one end of the sampling port is provided with an adsorption hole, the adsorption hole is communicated with the biopsy sampling head, and the other end of the sampling port is slidably connected with an arc-shaped cutter; an elastic assembly is fixed to the inner wall of the biopsy sampling head, the cutting position of an arc-shaped cutter connected to a sampling opening in a sliding mode can be adjusted, human tissue in the sampling opening can be conveniently cut, the purpose that a human tissue incision is smooth in the cutting process can be achieved, the sampling wound surface of the human tissue can be reduced, and the sampling efficiency is improved. A sampling part is not prone to bleeding, wound healing is not affected, and therefore the sampling effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of biopsy sampling, in particular to a gastroenterology biopsy sampler. Background Art

[0002] Gastroenterology is a branch of internal medicine. It is a tertiary clinical discipline that mainly studies diseases related to the esophagus, stomach, small intestine, large intestine, liver, gallbladder and pancreas. There are many types of gastroenterology diseases, involving a wide range of medical knowledge, and complex and delicate operations. During the gastrointestinal endoscopic examination, doctors take samples of suspicious lesions for further pathological examination, which is an important diagnostic method. The purpose of gastroenterology biopsy is to clarify the nature, type, degree and scope of the lesion, so as to guide the subsequent treatment plan, so it is necessary to remove the diseased tissue from the patient's body with forceps for pathological examination.

[0003] Currently, suspicious lesion tissue found in the stomach requires a gastroscope to be inserted into the human stomach, and the forceps sampler is inserted into the stomach along the sampling hole of the gastroscope. During the sampling process, the forceps head is opened and close to the suspicious lesion tissue, and then the forceps head is closed to bite off the suspicious lesion tissue for clamping. However, the incision of the forceps sampling is uneven, resulting in a larger wound surface, which is prone to cause heavy bleeding, further affecting wound healing, and may cause inflammation and infection of the wound, affecting the sampling effect. Summary of the invention

[0004] The present invention provides a gastroenterology biopsy sampler, which has the purpose of making the incision of human tissue relatively smooth during the cutting process, can reduce the sampling wound of human tissue, is not easy to cause a lot of bleeding at the sampling site, and affects wound healing, thereby improving the beneficial effect of sampling effect, and solves the problem mentioned in the above background technology that during the sampling process, after the forceps head is opened and close to the suspected diseased tissue, the forceps head is closed to bite off the suspicious diseased tissue for clamping, but the incision of the forceps sampling is uneven, which makes the wound surface larger and easily causes a lot of bleeding, which will further affect wound healing, and may cause wound inflammation and infection, affecting the sampling effect.

[0005] The present invention provides the following technical solution: a gastroenterology biopsy sampler, comprising a biopsy sampling head and a gastroscope body located on one side of the biopsy sampling head, the gastroscope body is provided with a sampling hole, the biopsy sampling head is slidably connected in the sampling hole, a sampling port is provided in the biopsy sampling head, an adsorption hole is provided at one end of the sampling port, the adsorption hole is communicated with the biopsy sampling head, and an arc-shaped cutter is slidably connected to the other end of the sampling port;

[0006] An elastic component is fixed on the inner wall of the biopsy sampling head, one end of the elastic component is fixedly connected to the arc-shaped cutter, and the other end of the elastic component is connected to a pull rope, an adsorption hose is fixed to one end of the biopsy sampling head, one end of the pull rope is slidably connected to the adsorption hose, and an adsorption port is provided on one side of the adsorption hose.

[0007] As an optional solution of the gastroenterology biopsy sampler described in the present invention, the elastic component includes a guide block, the guide block is fixed on the inner wall of the biopsy sampling head, and a connecting rod is slidably connected to the guide block, one end of the connecting rod is fixed with a first mounting bracket, one end of the arc-shaped cutter is fixed on the first mounting bracket, a first spring is connected between the connecting rod and the guide block, and one end of the pull rope is connected to one end of the connecting rod.

[0008] As an optional solution of the gastroenterology biopsy sampler described in the present invention, a storage slot is provided on the gastroscope lens body, a storage box is arranged in the storage slot, the storage box is snapped on the gastroscope lens body, a plurality of equidistantly distributed storage cavities are provided on the storage box, and a plurality of the storage cavities are connected to the sampling hole.

[0009] As an optional solution of the gastroenterology biopsy sampler described in the present invention, the storage box is provided with a plurality of first airways which are independently connected to different storage cavities, and the gastroscope lens body is provided with a plurality of second airways which are independently connected to a plurality of first airways.

[0010] As an optional solution of the gastroenterology biopsy sampler described in the present invention, one side of the storage box is provided with a plurality of strip grooves, a limit block is provided in the strip groove, the limit block is elastically connected to the storage box through a second spring, and one end of the limit block is located in the storage cavity, a double-headed resistance frame is provided in the strip groove, the double-headed resistance frame is elastically connected to the storage box through a third spring, and one end of the double-headed resistance frame is in resistance to the limit block.

[0011] As an optional solution of the gastroenterology biopsy sampler described in the present invention, one end of each of the first airways is provided with a first piston plate, the first piston plate is elastically connected to the storage box through a fourth spring, and a first resistance rod is fixed to the lower end of the first piston plate, the lower end of the first resistance rod is slidably connected to the storage box, and the first resistance rod is in resistance with the other end of the double-head resistance frame.

[0012] As an optional solution of the gastroenterology biopsy sampler described in the present invention, wherein: a second resistance rod is fixed on a plurality of the first piston plates, the end of the second resistance rod is in resistance with a first resistance wedge, the first resistance wedge is connected with a second mounting bracket, a guide rod is fixed inside the gastroscope lens body, and the second mounting bracket is elastically connected to the guide rod through a fifth spring.

[0013] As an optional solution of the gastroenterology biopsy sampler described in the present invention, wherein: a resistance strip is fixed at one end of the second mounting bracket, a resistance head is abutted on the resistance strip, the resistance head is elastically connected to the gastroscope lens body through a sixth spring, an inflatable airbag is fixed at one end of the biopsy sampling head, and the inflatable airbag is located in the sampling hole.

[0014] As an optional solution of the gastroenterology biopsy sampler described in the present invention, wherein: a push rod is slidably connected to the sampling port, and a push plate is arranged on the inner side of the sampling port, one end of the push rod is fixedly connected to the push plate, and the push rod is elastically connected to the sampling port through a seventh spring, a connecting column is fixed in the biopsy sampling head, a seesaw is mounted on the connecting column, a torsion spring is connected between the seesaw and the connecting column, and one end of the seesaw is in conflict with the push rod.

[0015] As an optional solution of the gastroenterology biopsy sampler described in the present invention, wherein: a hollow rod is fixed on the biopsy sampling head, the hollow rod is connected to the expansion airbag through a pipe, and a second piston plate is slidably connected inside the hollow rod, a piston rod is fixed on the second piston plate, one end of the piston rod is against the other end of the seesaw, and an eighth spring is connected between the second piston plate and the hollow rod.

[0016] The present invention has the following beneficial effects:

[0017] 1. In the gastroenterology biopsy sampler, the sampling hole opened on the gastric lens body facilitates the biopsy sampling head to move on the gastric lens body when sampling, and the sampling port on one side of the biopsy sampling head can be aimed at human tissue during sampling. The adsorption port fixed at one end of the adsorption hose can be connected to the negative pressure suction device, so that the negative pressure gas in the adsorption hose can flow into the biopsy sampling head during sampling, and then flow into the sampling port along the adsorption hole, so that the human tissue can be quickly sucked into the sampling port in the form of negative pressure suction. The cutting position of the arc-shaped cutter slidably connected to the sampling port can be adjusted through the cooperation of the pull rope and the elastic component, so that the human tissue in the sampling port can be cut conveniently, and the purpose of relatively smooth incision of human tissue during cutting can be achieved, which can reduce the sampling wound of human tissue, and is not easy to cause a lot of bleeding at the sampling site, affecting wound healing, thereby improving the sampling effect.

[0018] 2. In the gastroenterology biopsy sampler, the storage slot provided on the gastric lens body facilitates the storage box to be snapped onto the gastric lens body, and the plurality of storage cavities provided on the storage box can store a plurality of sampled human tissues at one time, so that the number of times the biopsy sampling head is lowered into the stomach for sampling is reduced during the biopsy sampling process, so as to reduce the discomfort of the patient. When the storage cavity is connected with the sampling hole, the sampling port on the biopsy sampling head can be aligned with the plurality of storage cavities in sequence when adjusting the position. When the plurality of first airways provided on the storage box and connected with different storage cavities are connected with the plurality of second airways provided on the gastric lens body, the negative pressure gas transported in the gastric lens body can flow into the first airway through the second airway, so as to promote the negative pressure gas to flow into the storage cavity which is connected with the first airway. When the sampling port and the storage cavity are under the action of the negative pressure gas, the sampled human tissues can be adsorbed in the storage cavity for storage;

[0019] The limiting block provided in the strip groove can slide on the storage box, and when the double-headed resistance frame provided in the strip groove resists against the limiting block, the limiting block can be extended into the storage cavity to limit the adsorbed sampled human tissue, thereby ensuring that the human tissue will not escape from the storage cavity after the adsorption is completed and the gas is cut off. The first piston sheet provided in the first airway can slide in the first airway under the action of negative pressure gas, thereby achieving the purpose of driving the first resistance rod to move on the storage box, prompting the first resistance rod to release the resistance to the double-headed resistance frame, so that in the process of human tissue being adsorbed into the storage cavity, the double-headed resistance frame can release the resistance to the limiting block, prompting the limiting block to slide horizontally to release the limitation, so that the sampled human tissue can be smoothly adsorbed into the storage cavity, and when the storage cavity in the storage box is full and the gastric lens body is detached from the human stomach, the storage box can be taken out, and then the sampled human tissue can be taken out, so as to facilitate the detection of several samples.

[0020] 3. In the gastroenterology biopsy sampler, the push rod slidably connected to the sampling port can be fixedly connected to the push plate arranged on the inner side of the sampling port. When the push rod drives the push plate to move in the sampling port, the cut sampled human tissue can be pushed out of the sampling port to prevent the human tissue from sticking to the sampling port and being unable to be adsorbed into the storage cavity, thereby ensuring the storage effect of the sample in place. The expansion airbag arranged at one end of the biopsy sampling head can be connected with the hollow rod in the biopsy sampling head. When the expansion airbag is squeezed, the gas can be transported into the hollow rod, prompting the second piston sheet in the hollow rod to drive the piston rod to move horizontally. During the movement of the piston rod, the seesaw can be pushed to rotate in the biopsy sampling head, prompting one end of the seesaw to apply a resistance force to the push rod during the rotation process, so that the push rod can automatically move horizontally on the sampling port.

[0021] When negative pressure gas is delivered in several independent first airways, the first piston plate can drive the second resistance rod to move, so that the second resistance rod can be colliding with the first resistance wedge fixed on the second mounting bracket, and the second mounting bracket can be moved horizontally inside the gastrolenoid lens body, thereby driving the resistance bar to collide with the resistance head on the gastrolenoid lens body, so that the resistance head can be affected by the resistance force and extend into the sampling hole to automatically squeeze the inflatable airbag. There is a one-to-one correspondence between several independent first airways and several storage cavities. No matter which storage cavity is storing, the first piston plate can drive the second resistance rod to collide with the first resistance wedge fixed on the second mounting bracket, so as to move the resistance head and squeeze the inflatable airbag. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 2 It is a structural cross-sectional view of the present invention.

[0024] Figure 3 It is a schematic diagram of the internal structure of the biopsy sampling head of the present invention.

[0025] Figure 4 It is a schematic diagram of the storage box structure of the present invention.

[0026] Figure 5 It is a schematic diagram of the structure of the first airway and the second airway of the present invention.

[0027] Figure 6 It is a cross-sectional view of the storage cavity structure of the present invention.

[0028] Figure 7 It is a cross-sectional view of the hollow rod structure of the present invention.

[0029] Figure 8 for Figure 2 A partial enlarged schematic diagram in the middle.

[0030] Fig. 9 for Figure 3 A partial enlarged schematic diagram of point B in the middle.

[0031] In the figure: 1, biopsy sampling head; 101, guide block; 102, connecting rod; 103, mounting bracket; 104, first spring; 2, gastroscope body; 3, sampling hole; 4, sampling port; 5, adsorption hole; 6, strip groove; 7, arc cutter; 8, pull rope; 9, adsorption hose; 10, adsorption port; 11, storage slot; 12, storage box; 13, storage cavity; 14, first airway; 15, second airway; 16, limit block; 17, second spring; 18, double-headed resistance frame; 19, third Spring; 20, first piston plate; 21, fourth spring; 22, first interference rod; 23, second interference rod; 24, first interference wedge; 25, mounting bracket; 26, guide rod; 27, fifth spring; 28, interference strip; 29, interference head; 30, sixth spring; 31, inflation airbag; 32, push rod; 33, push plate; 34, seventh spring; 35, connecting column; 36, rocker; 37, torsion spring; 38, hollow rod; 39, second piston plate; 40, piston rod; 41, eighth spring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0033] For example, see Figures 1 to 9 A gastroenterology biopsy sampler comprises a biopsy sampling head 1 and a gastroscope body 2 located at one side of the biopsy sampling head 1, a sampling hole 3 is provided on the gastroscope body 2, the biopsy sampling head 1 is slidably connected in the sampling hole 3, a sampling port 4 is provided in the biopsy sampling head 1, an adsorption hole 5 is provided at one end of the sampling port 4, the adsorption hole 5 is communicated with the biopsy sampling head 1, and an arc-shaped cutter 7 is slidably connected to the other end of the sampling port 4;

[0034] An elastic component is fixed on the inner wall of the biopsy sampling head 1, one end of the elastic component is fixedly connected to the arc-shaped cutter 7, and the other end of the elastic component is connected to a pull rope 8. An adsorption hose 9 is fixed to one end of the biopsy sampling head 1, one end of the pull rope 8 is slidably connected to the adsorption hose 9, and an adsorption port 10 is provided on one side of the adsorption hose 9.

[0035] The elastic component includes a guide block 101, which is fixed on the inner wall of the biopsy sampling head 1, and a connecting rod 102 is slidably connected to the guide block 101, one end of the connecting rod 102 is fixed with a first mounting bracket 103, one end of the arc cutter 7 is fixed on the first mounting bracket 103, a first spring 104 is connected between the connecting rod 102 and the guide block 101, and one end of the pull rope 8 is connected to one end of the connecting rod 102.

[0036] When taking biopsy samples, refer to Figure 1-Figure 3 The gastroscope with the gastroscope lens body 2 is inserted into the human body, and the diseased human tissue is searched through the camera arranged on the gastroscope lens body 2. After the diseased human tissue is found, the biopsy sampling head 1 connected with the adsorption hose 9 is inserted into the sampling port 4 of the gastroscope. When sampling, the biopsy sampling head 1 extends out of the gastroscope lens body 2, and the sampling port 4 is aligned with the diseased human tissue. The connecting rod 102 in the elastic component is pulled by the pull rope 8 arranged on the adsorption hose 9, so that the connecting rod 102 slides on the guide block 101, and the first spring 104 accumulates force, thereby driving the arc cutter 7 on the first mounting bracket 103 to move out from the sampling port 4, and at the same time, the adsorption fixed at one end of the adsorption hose 9 The port 10 can be connected to a negative pressure suction device. The negative pressure gas generated by the negative pressure suction device is transported to the biopsy sampling head 1 through the adsorption hose 9, and then flows into the sampling port 4 through the adsorption hole 5 opened at one end of the sampling port 4, so that the diseased human tissue can be adsorbed into the sampling port 4. By releasing the pull rope 8, the arc-shaped cutter 7 can be moved horizontally under the elastic force of the first spring 104, so that the human tissue in the sampling port 4 can be cut conveniently, thereby completing the sampling. During the cutting process, the incision of the human tissue is relatively smooth, which can reduce the sampling wound of the human tissue and is not easy to cause a lot of bleeding at the sampling site, affecting wound healing, thereby improving the sampling effect.

[0037] Embodiment 2: This embodiment is an improvement made on the basis of Embodiment 1. For details, please refer to Figures 1 to 9 The elastic component includes a guide block 101, which is fixed on the inner wall of the biopsy sampling head 1, and a connecting rod 102 is slidably connected to the guide block 101, one end of the connecting rod 102 is fixed with a first mounting bracket 103, one end of the arc cutter 7 is fixed on the first mounting bracket 103, a first spring 104 is connected between the connecting rod 102 and the guide block 101, and one end of the pull rope 8 is connected to one end of the connecting rod 102.

[0038] A storage slot 11 is provided on the gastrolens lens body 2, and a storage box 12 is arranged in the storage slot 11. The storage box 12 is engaged with the gastrolens lens body 2, and a plurality of equally distributed storage cavities 13 are provided on the storage box 12, and the plurality of storage cavities 13 are connected to the sampling hole 3.

[0039] The storage box 12 is provided with a plurality of first air passages 14 independently connected to different storage cavities 13 , and the gastroscope lens body 2 is provided with a plurality of second air passages 15 , which are independently connected to the plurality of first air passages 14 .

[0040] A plurality of strip grooves 6 are provided on one side of the storage box 12, a limit block 16 is provided in the strip groove 6, the limit block 16 is elastically connected to the storage box 12 through a second spring 17, and one end of the limit block 16 is located in the storage cavity 13, a double-headed abutment frame 18 is provided in the strip groove 6, the double-headed abutment frame 18 is elastically connected to the storage box 12 through a third spring 19, and one end of the double-headed abutment frame 18 abuts against the limit block 16.

[0041] A first piston plate 20 is provided at one end of several first air channels 14, and the first piston plate 20 is elastically connected to the storage box 12 through a fourth spring 21, and a first resistance rod 22 is fixed to the lower end of the first piston plate 20, and the lower end of the first resistance rod 22 is slidably connected to the storage box 12, and the first resistance rod 22 is in resistance with the other end of the double-head resistance frame 18.

[0042] During the biopsy sampling process, the gastroscope body 2 remains inserted, and the biopsy sampling head 1 moves inside the gastroscope body 2. However, since the biopsy sampler 1 can only take one sample at a time, when sampling multiple parts, the biopsy sampler 1 needs to be frequently inserted and withdrawn, which is inefficient. Figure 1-Figure 6 The storage slot 11 provided on the gastroscope body 2 facilitates the snapping of the storage box 12 with the plurality of storage cavities 13, so that the plurality of storage cavities 13 can be connected with the sampling hole 3. When the biopsy sampling head 1 completes sampling, the sampling port 4 of the biopsy sampling head 1 is aligned with the storage cavity 13 by adjusting the position of the adsorption hose 9, and the pull rope 8 is pulled to move the arc-shaped cutter 7 out of the sampling port 4, and at the same time, negative pressure gas is delivered into the gastroscope body 2, and the plurality of second airways 15 are connected with the plurality of first airways 14 in sequence. When the negative pressure gas flows into one of the second airways 15, it is convenient for the negative pressure gas to flow into the first airway 14 interconnected therewith, and the negative pressure gas is prompted to flow along the first airway 14 into the storage cavity 13 independently connected therewith, so that the human tissue cut from the sampling port 4 can be adsorbed into the corresponding storage cavity 13. When human tissue samples are stored in several storage cavities 13, the gastroscope body 2 is taken out from the stomach, and the storage box 12 is taken out from the gastroscope body 2, so as to facilitate the detection of several human tissue samples.

[0043] In order to prevent the human tissue sample stored in the storage cavity 13 from falling when the gastroscope body 2 moves, it is necessary to limit the human tissue sample in the storage cavity 13. Figure 2-Figure 6, through the limit block 16 set in the strip groove 6, when in the limited state, the double-headed resistance frame 18 is in conflict with the limit block 16, prompting one side of the limit block 16 to extend into the storage cavity 13, which can limit the adsorbed sampled human tissue. When the negative pressure gas flows into the first airway 14, the first piston piece 20 is adsorbed by the negative pressure gas, prompting the first piston piece 20 to slide a distance in the first airway 14, so that the first piston piece 20 can drive the first resistance rod 22 to move on the storage box 12. The fourth spring 21 accumulates force to prompt the first resistance rod 22 to release the resistance to the double-headed resistance frame 18, and the third spring 19 releases the elastic force to prompt the double-headed resistance frame 18 to be horizontal When the first airway 14 independently connected to the storage cavity 13 stops the flow of negative pressure gas, the first piston sheet 20 drives the first resistance rod 22 to resist one end of the double-headed resistance frame 18, so that the limit block 16 can be extended into the storage cavity 13 to limit the sampled human tissue. When the storage cavity 13 in the storage box 12 is full and the gastric lens body 2 is detached from the human stomach, the storage box 12 can be taken out, and then the sampled human tissue can be taken out, which is convenient for testing several samples.

[0044] Embodiment 3: This embodiment is an improvement made on the basis of Embodiment 1. For details, please refer to Figures 1 to 9 A second resistance rod 23 is fixed on each of the first piston plates 20, the end of the second resistance rod 23 is in resistance with a first resistance wedge 24, a second mounting bracket 25 is connected to the first resistance wedge 24, a guide rod 26 is fixed inside the gastroscope body 2, and the second mounting bracket 25 is elastically connected to the guide rod 26 through a fifth spring 27.

[0045] A resistance strip 28 is fixed at one end of the second mounting bracket 25 , and a resistance head 29 is abutted on the resistance strip 28 . The resistance head 29 is elastically connected to the gastroscope lens body 2 via a sixth spring 30 . An expansion balloon 31 is fixed at one end of the biopsy sampling head 1 , and the expansion balloon 31 is located in the sampling hole 3 .

[0046] A push rod 32 is slidably connected to the sampling port 4, and a push plate 33 is provided inside the sampling port 4. One end of the push rod 32 is fixedly connected to the push plate 33, and the push rod 32 is elastically connected to the sampling port 4 through a seventh spring 34. A connecting column 35 is fixed inside the biopsy sampling head 1, and a seesaw 36 is mounted on the connecting column 35. A torsion spring 37 is connected between the seesaw 36 and the connecting column 35, and one end of the seesaw 36 is in conflict with the push rod 32.

[0047] A hollow rod 38 is fixed on the biopsy sampling head 1, and the hollow rod 38 is connected to the expansion airbag 31 through a pipeline. A second piston plate 39 is slidably connected inside the hollow rod 38, and a piston rod 40 is fixed on the second piston plate 39. One end of the piston rod 40 rests on the other end of the rocker 36, and an eighth spring 41 is connected between the second piston plate 39 and the hollow rod 38.

[0048] In order to improve the effect of the sampled human tissue being adsorbed from the sampling port 4 to the storage cavity 13 so that the sampled human tissue can be stored in place, refer to Figure 3-Figure 9 When negative pressure gas is delivered in several independent first air passages 14, the first piston sheet 20 can drive the second resistance rod 23 to move, prompting the second resistance rod 23 to move and resist the first resistance wedge 24 on the second mounting bracket 25, so that the second mounting bracket 25 moves on the guide rod 26, and the fifth spring 27 accumulates force, which can achieve the purpose of the resistance bar 28 fixed at one end of the second mounting bracket 25 resisting the resistance head 29, prompting the resistance head 29 to extend into the sampling hole 3 and squeeze the expansion airbag 31 fixed at one end of the biopsy sampling head 1, and after the expansion airbag 31 is squeezed, the gas enters the airbag 31. The gas in the core rod 38 causes the second piston plate 39 to move in the hollow rod 38, and the eighth spring 41 accumulates force, so that the piston rod 40 fixed on the second piston plate 39 pushes one end of the seesaw 36 to deflect, and the seesaw 36 rotates on the connecting column 35. The torsion spring 37 accumulates force, and the other end of the seesaw 36 contacts the push rod 32. The push rod 32 drives the push plate 33 to move horizontally in the sampling port 4. The seventh spring 34 accumulates force, which can push the sampled human tissue out of the sampling port 4 to prevent the human tissue from sticking to the sampling port 4, making it convenient for the human tissue to be adsorbed into the storage cavity 13, thereby ensuring the storage effect of the sample.

[0049] The expansion balloon 31 can move synchronously with the biopsy sampling head 1. During the movement of the expansion balloon 31, it can always be located on one side of the abutment head 29, so that when human tissue is stored in the storage cavity 13 at different positions, the abutment head 29 can always squeeze the expansion balloon 31.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that the first piston plate 20 can slide in the first air channel 14 under the action of negative pressure gas, so as to achieve the purpose of driving the first interference rod 22 to move on the storage box 12, and prompting the first interference rod 22 to release the interference with the double-headed interference frame 18. There is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A gastroenterology biopsy sampler, comprising a biopsy sampling head (1) and a gastroscope body (2) located on one side of the biopsy sampling head (1), characterized in that: The gastroscope body (2) is provided with a sampling hole (3), the biopsy sampling head (1) is slidably connected in the sampling hole (3), a sampling port (4) is provided in the biopsy sampling head (1), one end of the sampling port (4) is provided with an adsorption hole (5), the adsorption hole (5) is communicated with the biopsy sampling head (1), and the other end of the sampling port (4) is slidably connected with an arc-shaped cutter (7); An elastic component is fixed on the inner wall of the biopsy sampling head (1), one end of the elastic component is fixedly connected to the arc-shaped cutter (7), and the other end of the elastic component is connected to a drawstring (8), an adsorption hose (9) is fixed to one end of the biopsy sampling head (1), one end of the drawstring (8) is slidably connected to the adsorption hose (9), and an adsorption port (10) is provided on one side of the adsorption hose (9).

2. The digestive internal medicine biopsy sampler according to claim 1, characterized in that: The elastic force component comprises a guide block (101), the guide block (101) is fixed on the inner wall of the biopsy sampling head (1), and a connecting rod (102) is slidably connected to the guide block (101), a first mounting bracket (103) is fixed to one end of the connecting rod (102), one end of the arc-shaped cutter (7) is fixed to the first mounting bracket (103), a first spring (104) is connected between the connecting rod (102) and the guide block (101), and one end of the pull rope (8) is connected to one end of the connecting rod (102).

3. The digestive internal medicine biopsy sampler according to claim 2, characterized in that: The gastroscope lens body (2) is provided with a storage slot (11), a storage box (12) is arranged in the storage slot (11), the storage box (12) is snapped onto the gastroscope lens body (2), and the storage box (12) is provided with a plurality of storage cavities (13) distributed at equal intervals, and a plurality of the storage cavities (13) are connected to the sampling hole (3).

4. The digestive internal medicine biopsy sampler according to claim 3, characterized in that: The storage box (12) is provided with a plurality of first air passages (14) which are independently connected to different storage cavities (13); the gastroscope body (2) is provided with a plurality of second air passages (15), and the plurality of second air passages (15) are independently connected to the plurality of first air passages (14).

5. The digestive internal medicine biopsy sampler according to claim 4, characterized in that: A plurality of strip grooves (6) are provided on one side of the storage box (12), a limit block (16) is provided in the strip groove (6), the limit block (16) is elastically connected to the storage box (12) via a second spring (17), and one end of the limit block (16) is located in the storage cavity (13), a double-headed abutment frame (18) is provided in the strip groove (6), the double-headed abutment frame (18) is elastically connected to the storage box (12) via a third spring (19), and one end of the double-headed abutment frame (18) abuts against the limit block (16).

6. The digestive internal medicine biopsy sampler according to claim 5, characterized in that: A first piston plate (20) is provided at one end of a plurality of the first air passages (14), the first piston plate (20) is elastically connected to the storage box (12) via a fourth spring (21), and a first abutment rod (22) is fixed to the lower end of the first piston plate (20), the lower end of the first abutment rod (22) is slidably connected to the storage box (12), and the first abutment rod (22) abuts against the other end of the double-head abutment frame (18).

7. The digestive internal medicine biopsy sampler according to claim 6, characterized in that: A second resistance rod (23) is fixed to a plurality of the first piston plates (20), the end of the second resistance rod (23) is in resistance to a first resistance wedge (24), the first resistance wedge (24) is connected to a second mounting bracket (25), a guide rod (26) is fixed inside the gastroscope body (2), and the second mounting bracket (25) is elastically connected to the guide rod (26) via a fifth spring (27).

8. The digestive internal medicine biopsy sampler according to claim 7, characterized in that: A resistance strip (28) is fixed to one end of the second mounting bracket (25), and a resistance head (29) is abutted on the resistance strip (28). The resistance head (29) is elastically connected to the gastroscope body (2) via a sixth spring (30). An expansion balloon (31) is fixed to one end of the biopsy sampling head (1), and the expansion balloon (31) is located in the sampling hole (3).

9. The digestive internal medicine biopsy sampler according to claim 8, characterized in that: A push rod (32) is slidably connected to the sampling port (4), and a push plate (33) is arranged inside the sampling port (4). One end of the push rod (32) is fixedly connected to the push plate (33), and the push rod (32) is elastically connected to the sampling port (4) through a seventh spring (34). A connecting column (35) is fixed inside the biopsy sampling head (1), and a seesaw (36) is mounted on the connecting column (35). A torsion spring (37) is connected between the seesaw (36) and the connecting column (35), and one end of the seesaw (36) is in contact with the push rod (32).

10. The digestive biopsy sampler according to claim 9, characterized in that: A hollow rod (38) is fixed on the biopsy sampling head (1), and the hollow rod (38) is connected to the expansion airbag (31) through a pipeline. A second piston plate (39) is slidably connected inside the hollow rod (38), and a piston rod (40) is fixed on the second piston plate (39). One end of the piston rod (40) is against the other end of the rocker (36), and an eighth spring (41) is connected between the second piston plate (39) and the hollow rod (38).

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