Biopsy sampler for digestive system department

Abstract

The biopsy sampler comprises a pipe sleeve, a handle is fixedly installed on the outer side of the pipe sleeve, a sealing ring is fixedly installed on the outer side of the pipe sleeve, a medical hose is nested in the pipe sleeve, a connector is fixedly installed at the tail end of the medical hose, and a sampling head is fixedly installed at the tail end of the connector. A banister brush is fixedly mounted on the outer side of the connector, and the banister brush and the sampling head are distributed in a left-right corresponding manner; a negative pressure aspirator is fixedly mounted on the inner side of the medical hose, and a threaded groove is connected to the outer side of the medical hose through a flow guide pipe. The biopsy sampler for the digestive system department is provided with a structure convenient to adjust, a servo motor is installed on the inner side of a pipe sleeve, when the position of a medical hose needs to be adjusted, the servo motor is operated, and the output end of the servo motor drives a threaded rod to rotate, so that a threaded connection part on the outer side of the threaded rod drives a supporting frame to move left and right; and the medical hose is driven to move on the inner side of the gastrointestinal part of the patient to sample pathological tissues.

Description

Technical Field

[0001] This invention relates to the field of gastroenterology, specifically to a biopsy sampler for gastroenterology. Background Technology

[0002] Gastroenterology is a tertiary clinical discipline that primarily studies diseases of the esophagus, stomach, small intestine, large intestine, liver, gallbladder, and pancreas. Gastroenterology involves a wide variety of diseases, a broad range of medical knowledge, and complex and precise procedures. In the treatment of gastroenterological diseases, it is often necessary to use a sampler to collect live specimens from the inside of the gastrointestinal tract. By analyzing these live specimens, the patient's condition can be determined.

[0003] A gastrointestinal biopsy sampler with application number CN202122688724.8 includes a handle with a sliding sleeve slidably connected to it. A baffle is installed at the bottom of the sliding sleeve, and a spring and a steel wire are fixedly installed at the bottom of the baffle, with the steel wire passing through the spring. A straight groove is formed on the handle, and toothed grooves are formed on both sides of the straight groove. A handle cap is installed at the lower end of the handle, and the handle cap is fixedly connected to the spring. A conduit is fixedly connected to the bottom of the handle cap, and the end of the conduit away from the handle cap is connected to a tip. When the tip is brought close to the lesion tissue, the sliding sleeve is pulled, which drives the steel wire connected below the sliding sleeve. The piston connected to the other end of the steel wire moves, and a negative pressure is formed in the front cavity of the tip to draw the lesion tissue into the cavity. At the same time, the steel wire moves and the lasso tightens to cut the tissue. The sample is stored in the cavity of the tip. This can reduce the opening and closing action of general samplers, thereby allowing for more accurate positioning of the lesion tissue.

[0004] After the catheter is inserted into the human body, the lesion is located through an endoscope. The tip of the device is brought close to the lesion, and by pulling the sliding sleeve, the steel wire connected to the bottom of the sliding sleeve is moved. The piston connected to the other end of the steel wire moves, creating a negative pressure in the front cavity of the tip, which draws the lesion into the cavity, thereby achieving the effect of biopsy sampling. However, the device requires manual operation when adjusting its position. Manual operation is prone to shaking, and it is very easy to scratch the patient's stomach and intestines when adjusting the position of the catheter, thus causing secondary harm to the patient.

[0005] The gastrointestinal biopsy sampler with application number CN202022588146.6 includes a sampling device, which includes a sampling head. The front side of the sampling head has a through hole and a sampling ring is fixedly connected thereto. The front side of the sampling ring has a through hole and a connector is fixedly connected thereto. The front side of the connector has a through hole and a flexible tube is fixedly connected thereto. The front side of the sampling device is equipped with a handheld and sample storage device. Because a rubber ring is installed on the circumferential side of the handheld handle, it can effectively prevent the sampler from shaking and slipping during use, ensuring that the sampling operation is carried out normally and will not harm the patient. Through the design of the baffle, if the operator accidentally slips while rotating the handle, the threaded rod will rotate in the opposite direction. Because the left side of the baffle can promptly abut the left side of the triangular baffle, it can limit its continued movement, thus preventing the sampling fluid from flowing back and avoiding affecting the sampling process.

[0006] This gastrointestinal biopsy sampler works by placing the sampling head in the patient's mouth and then advancing it along the esophagus towards the sampling site. Once at the sampling site, the user holds the handle with one hand. Because the handle has rubber rings on its circumference, it effectively prevents the sampler from shaking and slipping during use, ensuring that the sampling operation can proceed normally without harming the patient. However, the device does not have a structure to prevent the patient from biting. When the sampler tube is placed in the human gastrointestinal tract, the patient will experience nausea and other symptoms due to instinct, and their teeth will close uncontrollably. If the outside of the sampler is not protected, it is very easy to damage the sampler.

[0007] Therefore, we propose a biopsy sampler for gastroenterology to address the problems mentioned above. Summary of the Invention

[0008] The purpose of this invention is to provide a biopsy sampler for gastroenterology, addressing the problems mentioned in the background art. These problems include the need for manual operation during positioning of the device, which is prone to shaking and can easily scratch the patient's stomach and intestines, causing secondary injury; and the lack of a structure to prevent biting, leading to nausea and uncontrollable clenching of teeth when the sampler catheter is placed in the stomach and intestines. Without proper protection of the sampler's exterior, damage to the sampler is highly likely.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a biopsy sampler for gastroenterology, comprising a tube sleeve with a handle fixedly installed on its outer side and a sealing ring fixedly installed on the outer side of the tube sleeve; a medical tube nested inside the tube sleeve, with a connector fixedly installed at the tail end of the medical tube, and a sampling head fixedly installed at the tail end of the connector; a soft brush fixedly installed on the outer side of the connector, with the soft brush and the sampling head distributed in a left-right correspondence; a sampling assembly, with a negative pressure suction device fixedly installed inside the medical tube, and a threaded groove connected to the outer side of the medical tube via a guide tube, with a threaded connecting block threadedly connected to the inner side of the threaded groove, and a sample storage box fixedly installed at the lower end of the threaded connecting block; and a fixing structure, with two sets of gums installed on the outer side of the tube sleeve, and alveoli installed at equal intervals on the inner side of the gums, the gums being symmetrically distributed about the center of the tube sleeve, and the gums having an arc-shaped structure when viewed from the side.

[0010] Preferably, a servo motor is fixedly installed inside the tube sleeve, and a threaded rod is fixedly installed at the output end of the servo motor. A threaded connector is threadedly connected to the outside of the threaded rod, and the threaded connector is connected to a support frame via a connecting rod. A sliding groove is installed inside the tube sleeve, and a limit rod is nested inside the sliding groove. The limit rod is fixedly installed on the outside of the support frame. This structure drives the threaded connector connected to the outside thread to move left and right by rotating the threaded rod. The left and right movement of the threaded connector causes the outside support frame to adjust the position of the medical tubing.

[0011] Preferably, a concentric shaft is fixedly installed inside the sleeve, and a gear is nested on the outside of the concentric shaft. A first locking tooth is meshed on the outside of the gear, and the first locking tooth is fixedly installed on the outside of the support frame. The left and right movement of the first locking tooth will drive the gear to rotate, and the rotation of the gear will drive the lower meshing second locking tooth to adjust its position, thereby causing the sealing strip to slide inside the threaded groove.

[0012] Preferably, the gear has a second locking tooth meshing on its outer side, and the second locking tooth is fixedly installed on the outer side of the sealing strip; the second locking tooth fixedly installed on the outer side of the sealing strip can drive the sealing strip to adjust its left and right position, thereby making the inner side of the threaded groove in both closed and open states.

[0013] Preferably, a slot is provided inside the threaded groove, and a sealing strip is engaged inside the slot. The sealing strip passes through the inside of the threaded groove, and the tail end of the sealing strip is nested inside the sliding frame. The sliding frame is fixedly installed inside the sleeve. The tail end of the sealing strip nested inside the sliding frame can limit the position of the sealing strip by the sliding frame, preventing the sealing strip from moving too far and detaching from the inside of the threaded groove.

[0014] Preferably, the first and second locking teeth are distributed vertically relative to the center of the gear, and the gear and the concentric shaft form a rotating structure; the vertical distribution of the first and second locking teeth relative to the center of the gear can be achieved by connecting the gears so that the first and second locking teeth can move in opposite directions.

[0015] Preferably, a support block is fixedly installed on the outer side of the tube sleeve, and a sliding rail is fixedly installed on the outer side of the support block. A sliding block is nested inside the sliding rail, and two sets of sliding blocks are arranged symmetrically about the midpoint of the sliding rail. The two sets of sliding blocks are connected by a telescopic spring. The connection between the two sets of sliding blocks by the telescopic spring can drive the sliding blocks at both ends to reset along the inner side of the sliding rail by the elastic force of the telescopic spring, thereby causing the adjusting rod to rotate and lift the upper and lower sets of teeth.

[0016] Preferably, the outer bearing of the sliding block is connected to an adjusting rod, and the tail end bearing of the adjusting rod is connected to the gum, and an alveolar bone is fixedly installed on the inner side of the gum; the alveolar bone fixedly installed on the inner side of the gum can make the alveolar bone fit against the patient's teeth, thereby fixing the tube sleeve inside the patient's oral cavity by limiting the position of the gum.

[0017] Preferably, the two ends of the adjusting rod form a rotating structure with the sliding block and the gum respectively, and two sets of adjusting rods are arranged symmetrically about the midpoint of the gum. The rotating structure formed by the two ends of the adjusting rod with the sliding block and the gum respectively can adjust the position of the gum connected to the tail end by rotating the adjusting rod, so that the alveolar bone on the inside of the gum fits with the patient's teeth.

[0018] Compared with the prior art, the beneficial effects of the present invention are: This biopsy sampler for gastroenterology:

[0019] 1. It has an easily adjustable structure. By installing a servo motor inside the tube sleeve, when the position of the medical tubing needs to be adjusted, the servo motor is run. The output end of the servo motor drives the threaded rod to rotate, thereby causing the threaded connection on the outside of the threaded rod to move the support frame left and right, and moving the medical tubing inside the patient's gastrointestinal tract to sample the diseased tissue.

[0020] 2. It is equipped with a structure that facilitates sampling. By installing a negative pressure aspirator inside the medical tubing, when the medical tubing enters the patient's stomach and intestines, the suction force of the negative pressure aspirator will draw the cut lesion tissue into the stomach of the medical tubing, and then transport it to the inside of the sample storage box for storage through the connection of the guide tube.

[0021] 3. It is equipped with an anti-biting structure. By pushing the sliding blocks at both ends along the inner side of the sliding track with the elastic force of the telescopic spring, the adjusting rods at both ends are rotated, pushing out the upper and lower sets of gums and making them fit against the patient's teeth, thereby preventing the patient from biting and damaging the sampler. The connection between the gums and the patient's teeth can fix the sampler, thereby preventing the sampler from shaking during sampling. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall front view of the present invention;

[0024] Figure 3 This is a schematic diagram of the front sectional view of the sleeve structure of the present invention;

[0025] Figure 4 This is a partial frontal sectional view of the medical tubing of the present invention;

[0026] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0027] Figure 6 This is a side view of the sleeve structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the three-dimensional structure of the dental arch of the present invention;

[0029] Figure 8 For the present invention Figure 6 Enlarged structural diagram at point B.

[0030] In the diagram: 1. Tube sleeve; 2. Handle; 3. Sealing ring; 4. Negative pressure suction device; 5. Servo motor; 6. Threaded rod; 7. Threaded connector; 8. Connecting rod; 9. Support frame; 10. Slide groove; 11. Limiting rod; 12. Medical tubing; 13. Connector; 14. Sampling head; 15. Soft brush; 16. Threaded groove; 17. Threaded connecting block; 18. Sample storage box; 19. Concentric shaft; 20. Gear; 21. First retaining tooth; 22. Recess; 23. Sealing strip; 24. Sliding frame; 25. Second retaining tooth; 26. Support block; 27. Sliding track; 28. Sliding block; 29. ​​Telescopic spring; 30. Adjusting rod; 31. Gum; 32. Alveolar bone. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-8 This invention provides a technical solution: a biopsy sampler for gastroenterology, comprising a tube sleeve 1, a handle 2 fixedly mounted on its outer side, and a sealing ring 3 fixedly mounted on the outer side of the tube sleeve 1. A medical flexible tube 12 is nested inside the tube sleeve 1, and a connector 13 is fixedly mounted at the tail end of the medical flexible tube 12. A sampling head 14 is fixedly mounted at the tail end of the connector 13, and a soft brush 15 is fixedly mounted on the outer side of the connector 13, with the soft brush 15 and the sampling head 14 distributed in a left-right correspondence; a sampling assembly, medical... A negative pressure suction device 4 is fixedly installed on the inner side of the tubing 12, and a threaded groove 16 is connected to the outer side of the medical tubing 12 through a guide tube. A threaded connecting block 17 is threadedly connected to the inner side of the threaded groove 16, and a sample storage box 18 is fixedly installed at the lower end of the threaded connecting block 17. In the fixed structure, two sets of gums 31 are installed on the outer side of the tube sleeve 1, and alveoli 32 are installed at equal intervals on the inner side of the gums 31. The gums 31 are symmetrically distributed about the center of the tube sleeve 1, and the gums 31 have an arc-shaped structure when viewed from the side.

[0033] according to Figures 1-5 As shown, a servo motor 5 is fixedly installed inside the sleeve 1, and a threaded rod 6 is fixedly installed at the output end of the servo motor 5. A threaded connector 7 is threadedly connected to the outside of the threaded rod 6, and the threaded connector 7 is connected to a support frame 9 through a connecting rod 8. A slide groove 10 is installed inside the sleeve 1, and a limit rod 11 is nested inside the slide groove 10, and the limit rod 11 is fixedly installed outside the support frame 9. A concentric shaft 19 is fixedly installed inside the sleeve 1, and a gear 20 is nested outside the concentric shaft 19. A first retaining tooth 21 is meshed with the outside of the gear 20, and the first retaining tooth 21 is meshed with the gear 20. 1. Fixedly installed on the outside of the support frame 9; the gear 20 has a second locking tooth 25 meshing on its outside, and the second locking tooth 25 is fixedly installed on the outside of the sealing strip 23; a slot 22 is opened on the inside of the threaded groove 16, and the sealing strip 23 is engaged and connected on the inside of the slot 22. The sealing strip 23 passes through the inside of the threaded groove 16, and the tail end of the sealing strip 23 is nested in the inside of the sliding frame 24, and the sliding frame 24 is fixedly installed on the inside of the sleeve 1; the first locking tooth 21 and the second locking tooth 25 are distributed vertically and vertically about the center of the gear 20, and the gear 20 and the concentric shaft 19 form a rotating structure;

[0034] When the sampler is needed, the tube sleeve 1 is first placed in the patient's mouth. Then, the servo motor 5 is activated, and the output of the servo motor 5 drives the threaded rod 6 to rotate. The rotation of the threaded rod 6 causes the threaded connector 7 connected to the outer thread to move to the left. During this movement, the threaded connector 7, through the connection of the connecting rod 8, causes the support frame 9 to move as well (the limiting rod 11 on the outer side of the support frame 9 slides along the inner side of the slide groove 10, thereby preventing the support frame 9 from rotating and limiting the angle of the support frame 9). When the support frame 9 moves, it causes the medical tubing 12 to enter the patient's gastrointestinal tract. When the support frame 9 moves, the first locking tooth 21 on the outer side of the support frame 9 moves along with it, thereby causing the outer meshing gear 20 to rotate through the concentric shaft 19. During the rotation, it will mesh with the second locking tooth 25, thereby causing the second locking tooth 25 to move, thereby causing the outer connected sealing strip 23 to slide along the inner side of the sliding track 27. The servo motor 5 is stopped when the medical tubing 12 moves to the lesion tissue. At this time, the sampling head 14 is controlled by the remote sensing device to remove the lesion tissue. After the removal is completed, the negative pressure suction device 4 is activated to absorb the removed lesion tissue. The absorbed lesion tissue enters the inner side of the threaded groove 16 through the guide tube and falls into the inner side of the sample storage box 18 through the opening between the sealing strip 23 and the threaded groove 16. After the sampling is completed, the servo motor 5 is reversed to retract the medical tubing 12 to the inner side of the tube sleeve 1. The rotation of the gear 20 causes the sealing strip 23 to slide inside the threaded groove 16, so that the inner side of the threaded groove 16 is closed. At this time, the threaded connecting block 17 rotates in the reverse direction inside the tube sleeve 1 (the threaded hole) to separate the threaded connecting block 17 from the threaded hole. At this time, the sample storage box 18 can be removed.

[0035] according to Figures 1-2 , Figures 6-8 As shown, a support block 26 is fixedly installed on the outer side of the sleeve 1, and a sliding rail 27 is fixedly installed on the outer side of the support block 26. A sliding block 28 is nested inside the sliding rail 27, and two sets of sliding blocks 28 are arranged symmetrically about the midpoint of the sliding rail 27. The two sets of sliding blocks 28 are connected by a telescopic spring 29. An adjusting rod 30 is connected to the outer side of the sliding block 28 by a bearing, and a tooth 31 is connected to the tail end of the adjusting rod 30 by a bearing. A tooth 32 is fixedly installed inside the tooth 31. The two ends of the adjusting rod 30 form a rotating structure with the sliding block 28 and the tooth 31 respectively, and two sets of adjusting rod 30 are arranged symmetrically about the midpoint of the tooth 31.

[0036] When the tube sleeve 1 needs to be placed in the patient's mouth, the upper and lower jaws 31 are first pressed, causing the adjusting rod 30 to rotate. The rotation of the adjusting rod 30 causes the two sets of sliding blocks 28 connected to the tail end to compress the telescopic spring 29, thereby moving the upper and lower jaws 31 toward the tube sleeve 1. The compressed jaws 31 are then placed in the patient's mouth. Then, the upper and lower jaws 31 are released, and the two sets of sliding blocks 28 on the inner side of the sliding track 27 are reset by the elastic force of the telescopic spring 29, causing the adjusting rod 30 to rotate and lift the upper and lower jaws 31, so that the alveolar bone 32 fits against the patient's mouth. This structure prevents the patient from biting the tube sleeve 1 due to instinctive reaction, and the fixation of the patient's mouth by the jaws 31 prevents the tube sleeve 1 from moving back and forth in the patient's mouth.

[0037] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A biopsy sampler for gastroenterology, comprising a tube sleeve (1), a handle (2) fixedly installed on the outside of the tube sleeve (1), and a sealing ring (3) fixedly installed on the outside of the tube sleeve (1), a medical tube (12) nested inside the tube sleeve (1), and a connector (13) fixedly installed at the end of the medical tube (12), and a sampling head (14) fixedly installed at the end of the connector (13), and a soft brush (15) fixedly installed on the outside of the connector (13), and the soft brush (15) and the sampling head (14) are distributed in a left-right correspondence; Its features are, Also includes: The sampling assembly has a negative pressure suction device (4) fixedly installed inside the medical tubing (12), and a threaded groove (16) is connected to the outside of the medical tubing (12) through a guide tube. The threaded groove (16) is threadedly connected to the inside of the threaded groove (17), and a sample storage box (18) is fixedly installed at the lower end of the threaded connection block (17). The fixed structure has two sets of dental arches (31) installed on the outside of the sleeve (1), and dental alveoli (32) are installed at equal intervals on the inside of the dental arches (31). The dental arches (31) are symmetrically distributed about the center of the sleeve (1), and the dental arches (31) have an arc-shaped structure when viewed from the side.

2. The biopsy sampler for gastroenterology according to claim 1, characterized in that: A servo motor (5) is fixedly installed inside the sleeve (1), and a threaded rod (6) is fixedly installed at the output end of the servo motor (5). A threaded connector (7) is threadedly connected to the outside of the threaded rod (6), and the threaded connector (7) is connected to a support frame (9) through a connecting rod (8). A sliding groove (10) is installed inside the sleeve (1), and a limiting rod (11) is nested inside the sliding groove (10), and the limiting rod (11) is fixedly installed outside the support frame (9).

3. The biopsy sampler for gastroenterology according to claim 1, characterized in that: A concentric shaft (19) is fixedly installed on the inner side of the sleeve (1), and a gear (20) is nested on the outer side of the concentric shaft (19). A first locking tooth (21) is meshed on the outer side of the gear (20), and the first locking tooth (21) is fixedly installed on the outer side of the support frame (9).

4. A biopsy sampler for gastroenterology according to claim 3, characterized in that: The gear (20) has a second locking tooth (25) meshing on its outer side, and the second locking tooth (25) is fixedly installed on the outer side of the sealing strip (23).

5. A biopsy sampler for gastroenterology according to claim 1, characterized in that: A slot (22) is provided inside the threaded groove (16), and a sealing strip (23) is engaged inside the slot (22). The sealing strip (23) penetrates the inside of the threaded groove (16), and the tail end of the sealing strip (23) is nested inside the sliding frame (24). The sliding frame (24) is fixedly installed inside the sleeve (1).

6. A biopsy sampler for gastroenterology according to claim 3, characterized in that: The first tooth (21) and the second tooth (25) are distributed vertically relative to the center of the gear (20), and the gear (20) and the concentric shaft (19) form a rotating structure.

7. A biopsy sampler for gastroenterology according to claim 1, characterized in that: A support block (26) is fixedly installed on the outside of the sleeve (1), and a sliding rail (27) is fixedly installed on the outside of the support block (26). A sliding block (28) is nested inside the sliding rail (27), and two sets of sliding blocks (28) are arranged symmetrically about the midpoint of the sliding rail (27). The two sets of sliding blocks (28) are connected by a telescopic spring (29).

8. A biopsy sampler for gastroenterology according to claim 7, characterized in that: The sliding block (28) is connected to an adjusting rod (30) by a bearing on its outer side, and the adjusting rod (30) is connected to a toothed tooth (31) by a bearing at its tail end, and a toothed tooth (32) is fixedly installed on the inner side of the toothed tooth (31).

9. A biopsy sampler for gastroenterology according to claim 8, characterized in that: The two ends of the adjusting rod (30) form a rotating structure with the sliding block (28) and the gum (31) respectively, and the adjusting rod (30) is arranged in two sets symmetrically about the midpoint of the gum (31).

Images