Tumor sample collecting device

Abstract

The invention relates to the technical field of sample collection, and discloses a tumor sample collection device which comprises a sampling tube and further comprises a sliding sleeve arranged outside the sampling tube in a sleeving mode, a sleeve is connected to the top end of the sliding sleeve, an inner cylinder is arranged in the sleeve, the sampling tube extends into the inner cylinder, two storage tubes are symmetrically arranged in the inner cylinder, and the storage tubes are connected with the sliding sleeve. The storage tube is communicated with the sampling tube; a sampling opening is formed in the bottom end of the sampling pipe, a floater is arranged below the horizontal position of the sampling opening in the sampling pipe, and the floater is slidably connected into the sampling pipe through a tension spring. The floating device is elastically connected in the sampling pipe through the tension spring, when the sampling pipe completes sampling, the two-way pump is started to suck a sample, meanwhile, the floating device can be adsorbed, the floating device moves to the sampling opening after stretching the tension spring under adsorption force, the sampling opening is blocked, the sample is effectively prevented from flowing out and leaking, the integrity of sampling tissue is guaranteed, and the sampling efficiency is improved. Therefore, the detection accuracy is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sample collection, in particular to a tumor sample collection device. BACKGROUND

[0002] Tumor is a kind of disease that grows in the form of a lump in various parts of the body. Tumor is divided into benign tumor and malignant tumor. The characteristics of benign tumor are slow growth, clear boundary, complete capsule and uniform texture. The characteristics of malignant tumor are fast growth, unclear boundary, no complete capsule, rich blood flow signal in the growing tumor and hard texture. In the diagnosis process, biopsy is usually needed to judge whether the tumor is benign or malignant by extracting tumor samples, so as to arrange different treatment methods according to different properties.

[0003] A tumor sampling needle and a tumor sampling device with publication number "CN115137409A" belong to the technical field of medical equipment. The tumor sampling needle and the tumor sampling device include an outer cylinder, an inner cylinder, a sampling needle, a collection cylinder and an anti-skid sleeve. The sampling needle includes a needle body, a spiral blade and a sharp body arranged at the end of the needle body. The combination of the spiral blade and the sharp body can quickly pierce the tumor, and the sharp body can break the small range of protective film on the surface of the tumor by rotating, solving the problem of too large wound when using a scalpel to break the tumor. A V-shaped shovel is arranged at the top of the needle body. When the tumor is too small to be extracted, the V-shaped shovel can be inserted into the tumor. When the V-shaped shovel is extracted, a small amount of tumor sample will be carried out on the V-shaped shovel, which is convenient for doctors to collect and test. Since the magnetic poles of the first magnet and the second magnet on the protective layer are the same and repel each other, the sampling needle will not hurt the tissue when searching for the tumor in the human body.

[0004] However, the prior art and the above-mentioned technology still have the following defects: 1. The sampling structure lacks a corresponding plugging device at the collection port after sampling is completed, and the sample is easy to fall off and be damaged, which may have a great impact on the subsequent detection accuracy. 2. The sampling structure is used to extract samples, which may cause the sample to be left on the sampling needle / tube wall, which will also cause the sample to be missing and affect the test results. At the same time, the residues on the sampling needle / tube wall that are not cleaned in time are not easy to clean. SUMMARY

[0005] The application provides a tumor sample collection device, which solves the problem that the sampling structure mentioned in the background art lacks a corresponding plugging device after sampling is completed, the sample is easy to drop and be lost, and the subsequent detection accuracy may be greatly affected; the sampling structure is used to extract the sample, which may cause the sample to be left on the sampling needle / tube wall, also causing the sample to be lost and affecting the detection result, and the residue on the sampling needle / tube wall which is not cleaned in time is not easy to clean.

[0006] The application provides the following technical scheme: a tumor sample collection device, comprising a sampling tube, further comprising a sliding sleeve sleeved outside the sampling tube, a sleeve is connected to the top end of the sliding sleeve, an inner cylinder is arranged in the sleeve, the sampling tube extends into the inner cylinder, two groups of storage tubes are symmetrically arranged in the inner cylinder, and the storage tubes and the sampling tube are communicatively arranged; a sampling port is formed in the bottom end of the sampling tube, a float is arranged below the horizontal position of the sampling port in the sampling tube, and the float is slidably connected to the sampling tube by a tension spring.

[0007] As an optional solution of the tumor sample collection device, the top of the inner cylinder is provided with a top cover, a bidirectional pump is installed on the top cover, the bidirectional pump is in communication with the sampling tube, pipes are symmetrically arranged on the two sides of the sampling tube and in communication with the two groups of storage tubes, a valve is installed on the sampling tube, a positioning sleeve is installed at the bottom of the inner cylinder, and the sampling tube and the positioning sleeve are connected in a clearance fit.

[0008] As an optional solution of the tumor sample collection device, the top of the sleeve is provided with a guide plate, electric cylinders are symmetrically arranged on the two sides of the outer wall of the inner cylinder, and the telescopic rods of the electric cylinders are fixedly connected to the guide plate.

[0009] As an optional solution of the tumor sample collection device, a knob is fixedly connected in the sliding sleeve, a through hole matched with the sampling tube is formed in the knob, a first rotating block is arranged on the surface of the sampling tube, inclined surfaces are formed on the opposite surfaces of the knob and the first rotating block, a sliding groove is formed in the sliding sleeve at the sliding position of the first rotating block, a first torsional spring is connected between the first rotating block and the inner wall of the sliding sleeve, and the knob is lowered along with the sliding sleeve, the first rotating block is pushed by the inclined surface, and the sampling tube is rotated.

[0010] As an optional solution of the tumor sample collection device, a suction disc is arranged on the outer surface of the sliding sleeve, and a sampling port is formed below the suction disc on one side of the sampling tube.

[0011] As an optional solution of the tumor sample collection device, an inner tube is slidably installed in the sampling tube, scraping pieces are arranged in an annular equidistant array on the outer wall of the inner tube, and the scraping pieces are attached to the inner wall of the sampling tube.

[0012] As an optional solution of the tumor sample collection device, the inner tube bottom end is connected with a second rotating block, the top of the floater is provided with a top block, the opposite surfaces of the top block and the second rotating block are both provided with inclined surfaces, the inner tube top end is connected with a second torsion spring, when the floater moves upward, the top block and the second rotating block are pressed to drive the inner tube to rotate in the sampling tube, the both sides of the inner tube are symmetrically provided with blocking plates, and the blocking plates are arranged at positions corresponding to the pipeline communication positions.

[0013] As an optional solution of the tumor sample collection device, the both sides of the sleeve and the inner cylinder close to the storage tube are both provided with openings, the storage tube is detachably arranged in the inner cylinder, the top of the storage tube is provided with a magnetic ring, and the pipeline nozzle is magnetically attracted and inserted into the magnetic ring.

[0014] As an optional solution of the tumor sample collection device, the bottom of the storage tube is provided with a locking assembly, the locking assembly comprises a fixed plate fixedly connected to the sleeve bottom, a jackscrew is slidingly installed in the fixed plate, one end of the jackscrew extends to one side of the fixed plate and is connected with a pull rod, a spring is connected between the pull rod and the fixed plate, a groove is formed in the bottom of the storage tube, and the jackscrew and the groove are gap-fitted.

[0015] As an optional solution of the tumor sample collection device, the locking assembly further comprises a sliding disc slidingly connected in the storage tube, one side of the sliding disc is connected with a guide rod, the surface of the guide rod is connected with a sealing plate, and one end of the guide rod is abutted with one end of the jackscrew.

[0016] The present application has the following advantages: 1. The tumor sample collection device, the floater is elastically connected in the sampling tube through the tension spring, when the sampling of the sampling tube is completed, the sample is sucked by starting the bidirectional pump, and the floater is also adsorbed, the floater is stretched after being adsorbed by the tension spring, moves to the sampling port, and blocks the sampling port, so that the sample leakage is effectively avoided, the sampling tissue integrity is guaranteed, and the detection accuracy is ensured. 2. The tumor sample collection device, the suction cup is fixed at the adsorbable position by driving the sleeve to move downward along the inner cylinder, so that the stability during sampling is improved, the driving sleeve is connected with a driving block in the sliding sleeve, the driving block slides downward along the outer wall of the sampling tube, the outer wall of the sampling tube is connected with a first rotating block, the driving block and the first rotating block are both provided with inclined surfaces, so that the first rotating block is rotated by the driving block during the downward movement of the driving block, the sampling tube is driven to rotate, the sampling tube is pierced, the pulling is reduced, the piercing of the sampling tube is accelerated, the sampling efficiency is improved, and the damage caused by sampling is avoided. 3. The tumor sample collection device has a top block on the float and a slidingly connected inner tube inside the sampling tube. The inner tube has scrapers arranged in an equidistant array on its surface and a second rotating block at the bottom. When the float moves upward, the top block and the second rotating block press against and drive the inner tube to rotate inside the sampling tube. This process can use the rise of the float to clean the inner wall of the sampling tube in time, preventing sample loss from affecting the test results. 4. This tumor sample collection device has a magnetic ring at the top of the storage tube, which, together with the magnetic structure of the tube, facilitates connection and engagement. A locking component is provided at the bottom of the storage tube. The two work together to quickly obtain the sample from the storage tube. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention from the perspective of the front view.

[0018] Figure 2 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention.

[0019] Figure 3 This is a cross-sectional three-dimensional structural diagram of the present invention.

[0020] Figure 4 This is a cross-sectional exploded view of the sampling tube of the present invention.

[0021] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0022] Figure 6 This is a schematic diagram of the partial cross-sectional structure viewed from below in this invention.

[0023] Figure 7 This is a schematic diagram of the locked state of the storage tube in this invention.

[0024] Figure 8 This is a schematic diagram of the unlocked state of the storage tube in this invention.

[0025] In the diagram: 1. Sleeve; 2. Electric cylinder; 3. Top cover; 4. Two-way pump; 5. Sliding sleeve; 6. Edge plate; 7. Inner cylinder; 8. Storage tube; 9. Sampling tube; 10. Valve; 11. Suction cup; 12. Pulley; 13. First rotating block; 14. First torsion spring; 15. Tension spring; 16. Floater; 17. Top block; 18. Inner tube; 19. Second rotating block; 20. Blocking plate; 21. Second torsion spring; 22. Opening; 23. Top column; 24. Pull rod; 25. Spring; 26. Fixing plate; 27. Magnetic ring; 28. Sliding disc; 29. ​​Sealing plate; 30. Guide rod; 31. Scraper; 32. Sampling port; 33. Positioning sleeve; 34. Pipeline. Detailed Implementation

[0026] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present application.

[0027] Embodiment one, please refer to Figures 1 to 8 The present application discloses a tumor sample collection device, comprising a sampling tube 9, the bottom end of the sampling tube 9 is provided with a sampling port 32, further comprising a sliding sleeve 5 sleeved outside the sampling tube 9, the top end of the sliding sleeve 5 is connected with a sleeve 1, the sleeve 1 is provided with an inner cylinder 7, the sampling tube 9 extends into the inner cylinder 7, and two groups of storage tubes 8 are symmetrically arranged in the inner cylinder 7 and are in communication with the sampling tube 9.

[0028] In the embodiment, one group of sampling tubes 9 is arranged to extend into the tumor site until the sampling port 32 completely penetrates into the tumor, so that the tumor sample is collected, and the collected sample is stored in the storage tube 8, thereby facilitating collection.

[0029] The top of the inner cylinder 7 is provided with a top cover 3, the top cover 3 is provided with a double-way pump 4, the double-way pump 4 is in communication with the sampling tube 9, the sampling tube 9 is symmetrically connected with a pipeline 34 on both sides, the pipeline 34 is in communication with the two groups of storage tubes 8, the sampling tube 9 is provided with a valve 10, and the inner cylinder 7 is provided with a positioning sleeve 33 at the bottom, and the sampling tube 9 and the positioning sleeve 33 are connected in a clearance fit.

[0030] In the embodiment, the double-way pump 4 is arranged on the top cover 3 at the top of the inner cylinder 7, the double-way pump 4 is in communication with the sampling tube 9, after the sample is sucked in, the valve 10 is closed, and then the sample is sent into the storage tube 8 by negative pressure, so that the tumor sample collection is completed.

[0031] It should be noted that the double-way pump 4 realizes the suction and pressurization of the liquid by mechanical energy conversion, specifically including: suction of the liquid: vacuum or pressure difference is generated by rotation of the impeller or movement of the piston, and the liquid is sucked into the pump from the low position; pressurization of the liquid: through kinetic energy conversion and pressure chamber design, the liquid obtains pressure energy, and the sample sucked into the sampling tube 9 is pressed into the storage tube 8 by negative pressure.

[0032] Embodiment two, the present embodiment is an explanation and description based on embodiment one, specifically, please refer to Figures 1 to 8 The top of the sleeve 1 is provided with a guide plate 6, the outer sides of the inner cylinder 7 are symmetrically provided with electric cylinders 2, the extension rods of the electric cylinders 2 are fixedly connected with the guide plate 6, and the outer surface of the sliding sleeve 5 is provided with a suction disc 11.

[0033] In this embodiment, the sleeve 1 is provided with a guide plate 6 at the top, and an electric cylinder 2 is connected to the outside of the inner cylinder 7, and the telescopic rod of the electric cylinder 2 is connected to the guide plate 6. When the electric cylinder 2 is started, the sleeve 1 can be driven to move downward along the inner cylinder 7 until the suction cup 11 is fixed at the adsorbing position, thereby improving the stability during sampling.

[0034] The sliding sleeve 5 is fixedly connected with a push block 12, and the push block 12 is provided with a through hole matched with the sampling tube 9. The surface of the sampling tube 9 is provided with a first rotating block 13. The opposite surfaces of the push block 12 and the first rotating block 13 are provided with inclined surfaces. The sliding sleeve 5 is provided with a sliding groove at the sliding position of the first rotating block 13. The first rotating block 13 and the inner wall of the sliding sleeve 5 are connected with a first torsional spring 14. When the push block 12 moves downward with the sliding sleeve 5, the inclined surfaces push the first rotating block 13 to drive the sampling tube 9 to rotate.

[0035] In this embodiment, the sliding sleeve 5 is connected with the push block 12. The push block 12 slides along the outer wall of the sampling tube 9. The outer wall of the sampling tube 9 is connected with the first rotating block 13. Since the push block 12 and the first rotating block 13 are both provided with inclined surfaces, during the downward movement of the push block 12, the low point of the push block 12 pushes the high point of the first rotating block 13. When the downward pressure is greater than the resistance, the push block 12 can push the first rotating block 13 to rotate, thereby driving the sampling tube 9 to rotate. During the piercing process of the sampling tube 9, the pulling force is reduced, the piercing of the sampling tube 9 is accelerated, the sampling efficiency is improved, and the damage caused by sampling can be avoided.

[0036] In this embodiment, the sliding sleeve 5 is connected with the push block 12. The push block 12 slides along the outer wall of the sampling tube 9. The outer wall of the sampling tube 9 is connected with the first rotating block 13. Since the push block 12 and the first rotating block 13 are both provided with inclined surfaces, during the downward movement of the push block 12, the low point of the push block 12 pushes the high point of the first rotating block 13. When the downward pressure is greater than the resistance, the push block 12 can push the first rotating block 13 to rotate, thereby driving the sampling tube 9 to rotate. During the piercing process of the sampling tube 9, the pulling force is reduced, the piercing of the sampling tube 9 is accelerated, the sampling efficiency is improved, and the damage caused by sampling can be avoided. Figures 1 to 8

[0037] In this embodiment, the sampling tube 9 is elastically connected with the float 16 through the pull spring 15. When the sampling of the sampling tube 9 is completed, the double-way pump 4 is started to suck the sample, and the float 16 is also adsorbed. After the float 16 is stretched by the adsorption force, the pull spring 15 moves to the sampling port 32 to block the sampling port 32, effectively preventing the sample from leaking, ensuring the integrity of the sampling organization, and ensuring the accuracy of the detection.

[0038] In this embodiment, the sliding sleeve 5 is connected with the push block 12. The push block 12 slides along the outer wall of the sampling tube 9. The outer wall of the sampling tube 9 is connected with the first rotating block 13. Since the push block 12 and the first rotating block 13 are both provided with inclined surfaces, during the downward movement of the push block 12, the low point of the push block 12 pushes the high point of the first rotating block 13. When the downward pressure is greater than the resistance, the push block 12 can push the first rotating block 13 to rotate, thereby driving the sampling tube 9 to rotate. During the piercing process of the sampling tube 9, the pulling force is reduced, the piercing of the sampling tube 9 is accelerated, the sampling efficiency is improved, and the damage caused by sampling can be avoided. Figures 1 to 8

[0039] ​​In this embodiment, the top block 17 is arranged on the float 16, the inner tube 18 is arranged in the sampling tube 9 in a sliding connection, the surface of the inner tube 18 is arranged with an annular equidistant array of scraping blades 31, and the bottom of the inner tube 18 is arranged with a second rotating block 19. When the float 16 moves upwards, the top block 17 and the second rotating block 19 press and drive the inner tube 18 to rotate in the sampling tube 9. This process can clean the inner wall of the sampling tube 9 in time by using the rising of the float 16. The cleaned sample is finally sucked into the storage tube 8 by the bidirectional pump 4.

[0040] The blocking plates 20 are symmetrically arranged on both sides of the inner tube 18, and the blocking plates 20 are arranged at positions corresponding to the communication positions of the pipelines 34.

[0041] It should be noted that the initial position of the blocking plate 20 is blocked at the communication position of the pipeline 34 and the sampling tube 9. The inner tube 18 is lifted by the float 16 to rotate by 90°, so as to open the pipeline 34, thereby sucking the sample into the storage tube 8.

[0042] In this embodiment, the top block 17 is arranged on the float 16, the inner tube 18 is arranged in the sampling tube 9 in a sliding connection, the surface of the inner tube 18 is arranged with an annular equidistant array of scraping blades 31, and the bottom of the inner tube 18 is arranged with a second rotating block 19. When the float 16 moves upwards, the top block 17 and the second rotating block 19 press and drive the inner tube 18 to rotate in the sampling tube 9. This process can clean the inner wall of the sampling tube 9 in time by using the rising of the float 16. The cleaned sample is finally sucked into the storage tube 8 by the bidirectional pump 4. Figures 1 to 8 The opening 22 is arranged on both sides of the sleeve 1 and the inner cylinder 7 close to the storage tube 8. The storage tube 8 is detachably arranged in the inner cylinder 7. The top of the storage tube 8 is arranged with a magnetic ring 27. The pipe opening of the pipeline 34 is magnetically attracted and inserted into the magnetic ring 27. The bottom of the storage tube 8 is arranged with a locking assembly. The locking assembly comprises a fixed plate 26 fixedly connected to the bottom of the sleeve 1. A top column 23 is slidingly installed in the fixed plate 26. One end of the top column 23 extends to one side of the fixed plate 26 and is connected with a pull rod 24. The pull rod 24 and the fixed plate 26 are connected with a spring 25. The bottom of the storage tube 8 is arranged with a groove. The top column 23 and the groove are gap-fitted. The locking assembly further comprises a sliding disc 28 slidingly connected in the storage tube 8. One side of the sliding disc 28 is connected with a guide rod 30. The surface of the guide rod 30 is connected with a blocking plate 29. One end of the guide rod 30 and one end of the top column 23 are arranged in abutment.

[0043] In this embodiment, the storage tube 8 is detachably installed in the inner cylinder 7. When the sample in the storage tube 8 is collected to the required dose, the baffle outside the opening 22 can be opened, and the storage tube 8 can be taken out.

[0044] Specifically, the top of the storage tube 8 is arranged with a magnetic ring 27. The magnetic ring 27 and the pipeline 34 are used to facilitate the attraction and communication. The bottom of the storage tube 8 is arranged with a locking assembly. In the initial state, the sliding disc 28 and the guide rod 30 are sealingly sliding in the storage tube 8. The storage tube 8 can be placed in the inner cylinder 7 by pressing the top column 23. The top column 23 is inserted into the bottom of the storage tube 8, and the magnetic ring 27 can make the storage tube 8 stable. When the sample in the storage tube 8 reaches a certain dose, the sliding disc 28 is pressed down, the guide rod 30 is driven to move downward by the sliding disc 28, which is sufficient to push the top column 23 out of the bottom of the storage tube 8, so that the top column 23 and the storage tube 8 are separated, at this time, the opening 22 is opened, and the storage tube 8 can be taken out, and the sample in the storage tube 8 can be quickly obtained.

[0045] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0046] The above description is only the preferred embodiment of the present application, and it should be pointed out that for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A tumor sample collection device, comprising a sampling tube (9), characterized in that: a sliding sleeve (5) is sleeved outside the sampling tube (9), a sleeve (1) is connected to the top end of the sliding sleeve (5), an inner cylinder (7) is arranged in the sleeve (1), the sampling tube (9) extends into the inner cylinder (7), two groups of storage tubes (8) are symmetrically arranged in the inner cylinder (7), and the storage tubes (8) are in communication with the sampling tube (9). The bottom end of the sampling tube (9) is provided with a sampling port (32), and a floater (16) is arranged below the horizontal position of the sampling port (32) in the sampling tube (9). The top of the inner cylinder (7) is provided with a top cover (3), a two-way pump (4) is installed on the top cover (3), the two-way pump (4) is in communication with the sampling tube (9), two pipelines (34) are symmetrically arranged on both sides of the sampling tube (9) and in communication with the two groups of storage tubes (8), a valve (10) is installed on the sampling tube (9), a positioning sleeve (33) is installed at the bottom of the inner cylinder (7), and the sampling tube (9) and the positioning sleeve (33) are connected in clearance fit.

2. The tumor sample collection device of claim 1, wherein: The top of the sleeve (1) is provided with a guide plate (6), and electric cylinders (2) are symmetrically arranged on both sides of the outer portion of the inner cylinder (7), and the extension rod end of the electric cylinder (2) is fixedly connected with the guide plate (6).

3. The tumor sample collection device of claim 1, wherein: A rotating block (12) is fixedly connected in the sliding sleeve (5), a through hole matched with the sampling tube (9) is formed in the rotating block (12), a first rotating block (13) is arranged on the surface of the sampling tube (9), and inclined surfaces are formed on the opposite surfaces of the rotating block (12) and the first rotating block (13).

4. The tumor sample collection device of claim 1, wherein: A sliding groove is formed in the sliding sleeve (5) at the sliding position of the first rotating block (13), a first torsional spring (14) is connected between the first rotating block (13) and the inner wall of the sliding sleeve (5), the rotating block (12) moves downward with the sliding sleeve (5), the first rotating block (13) is pushed by the inclined surface to drive the sampling tube (9) to rotate.

5. The tumor sample collection device of claim 4, wherein: A suction disc (11) is arranged on the outer surface of the sliding sleeve (5), and a sampling port (32) is formed below the suction disc (11) on one side of the sampling tube (9).

6. The tumor sample collection device of claim 2, wherein: An inner tube (18) is slidably installed in the sampling tube (9), scraping blades (31) are arranged in an annular equidistant array on the outer wall of the inner tube (18), and the scraping blades (31) are attached to the inner wall of the sampling tube (9).

7. The tumor sample collection device of claim 6, wherein: A second rotating block (19) is connected to the bottom end of the inner tube (18), a top block (17) is arranged on the top of the floater (16), inclined surfaces are formed on the opposite surfaces of the top block (17) and the second rotating block (19), a second torsional spring (21) is connected to the top end of the inner tube (18), when the floater (16) moves upward, the top block (17) and the second rotating block (19) are pressed to drive the inner tube (18) to rotate in the sampling tube (9), and blocking plates (20) are symmetrically arranged on both sides of the inner tube (18) and correspond to the communication positions of the pipelines (34).

8. The tumor sample collection device of claim 1, wherein: The sleeve (1) and the inner cylinder (7) are provided with openings (22) near the storage tube (8), the storage tube (8) is detachably arranged in the inner cylinder (7), the top of the storage tube (8) is provided with a magnetic ring (27), and the pipe (34) is magnetically combined with the magnetic ring (27).

9. The tumor sample collection device of claim 8, wherein: The bottom of the storage tube (8) is provided with a locking assembly, the locking assembly comprises a fixed plate (26) fixedly connected to the bottom of the sleeve (1), a jackscrew (23) slidably installed in the fixed plate (26), a pull rod (24) connected to one end of the jackscrew (23) extending from one side of the fixed plate (26), a spring (25) connected between the pull rod (24) and the fixed plate (26), and a recess is formed in the bottom of the storage tube (8), and the jackscrew (23) is matched with the recess in a clearance fit.

10. The tumor sample collection device of claim 9, wherein: The locking assembly further comprises a sliding disc (28) slidably connected in the storage tube (8), a guide rod (30) connected to one side of the sliding disc (28), an enclosing plate (29) connected to the surface of the guide rod (30), and the guide rod (30) is arranged in close contact with one end of the jackscrew (23).

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