Sampling device for gynecological tumor sample tissue

Abstract

The invention provides a sampling device for gynecological tumor sample tissue, and relates to the field of tumor sampling, the sampling device comprises a sampling needle and a connecting cavity, the inner side of the sampling needle is provided with a sampling port, the inner side of the sampling needle is slidably connected with a blade, the back of the connecting cavity is fixedly provided with a negative pressure pump, and the inner side of the connecting cavity is provided with a filter element. According to the tumor tissue sampling device, by arranging the connecting cavity, the negative pressure pump, the filter element, the sliding groove, the pressing plate, clamping teeth, a plug pin, a tension spring A, a long rod, a tension spring B, a gear, a connecting plate, an ejector rod and an empty groove, negative pressure is formed on the inner side of the sampling needle through the negative pressure pump, so that part of tumor tissue can be sucked into the inner side of the sampling needle, cutting sampling of a sample can be completed by pushing a blade, and the sampling effect is excellent; meanwhile, after the sampling work is finished, the plug pin is pulled upwards, and the filter element is driven to pop up automatically under the action of the transmission mechanism, so that direct contact with limbs is avoided, and germ transmission is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of sampling devices, and in particular to a sampling device for gynecological tumor sample tissue. Background Art

[0002] Gynecological tumor sample tissue sampling devices are medical devices designed specifically for collecting tissue samples from patients with gynecological tumors (such as ovarian cancer, uterine cancer, cervical cancer, etc.). These devices are often used in clinical applications such as diagnosis, pathological examination, and molecular analysis.

[0003] Publication No. CN213283100U discloses a gynecological tumor sample tissue sampling device, including a needle tube and a needle, a piston is arranged in the needle tube, a scale line is arranged on the needle tube, two support rods are arranged on the end face of the piston away from the needle head, each support rod is arranged on the end away from the piston, a guide block is arranged on the inner wall of the needle tube for the guide block to slide, a fixed rod is arranged between the end faces of the two support rods away from the piston, a drive block located between the two support rods is arranged in the needle tube, the two end ends of the drive block respectively penetrate the outside of the needle tube and form a horizontal sliding connection with the needle tube, a button is arranged on one end of the drive block, a drive plate for resisting the fixed rod is arranged obliquely on the end of the drive block away from the piston, and a needle handle is arranged on the end face of the fixed rod away from the piston. The utility model has the advantage of improving the convenience of using the sampling device.

[0004] However, in actual operation, this type of sampling device is only suitable for extracting liquid tissue, and is difficult to sample solid tumor tissue, which reduces its flexibility. In addition, in some sampling devices that use negative pressure to cut solid tumor tissue, a filter element is generally required to intercept and absorb liquid impurities such as excess blood, and the filter element needs to be replaced frequently. However, this process needs to be performed manually. If there are no medical instruments such as tweezers around, contact with the limbs is inevitable, which may cause the spread of pathogens and needs to be optimized and improved. Summary of the invention

[0005] The purpose of the present invention is to solve the technical problems raised in the above background technology.

[0006] The present invention adopts the following technical scheme: a sampling device for gynecological tumor sample tissue, comprising a sampling needle and a connecting cavity, a sampling port is provided on the inner side of the sampling needle, a blade is slidably connected to the inner side of the sampling needle, a negative pressure pump is fixedly installed on the back side of the connecting cavity, a filter element is provided on the inner side of the connecting cavity, a slide groove is provided on the inner side of the connecting cavity, a pressure plate is slidably connected to the inner side of the slide groove, a locking tooth is fixedly installed on the bottom end of the pressure plate, a latch is inserted into the inner side of the pressure plate, a tension spring A is sleeved on the surface of the latch, a long rod is fixedly installed on the surface of the connecting cavity, a tension spring B is sleeved on the surface of the long rod, a gear is rotatably connected to the surface of the connecting cavity, a connecting plate is fixedly installed on the surface of the gear, a push rod is fixedly installed on the inner side of the connecting plate, and an empty groove is provided on the inner side of the connecting cavity.

[0007] Preferably, the inner side of the connecting cavity is connected with a connecting tube A, a limiting groove is provided on the inner side of the connecting tube A, an arc block is slidably connected to the inner side of the limiting groove, a short rod is fixedly installed on the surface of the connecting tube A, a stop plate is slidably connected to the surface of the short rod, a spring is sleeved on the surface of the short rod, a connecting tube B is provided on the surface of the sampling needle, an annular groove is provided on the inner side of the connecting tube B, and a sealing ring is provided on the inner side of the connecting tube B.

[0008] Preferably, an auxiliary plate is hinged on the inner side of the sampling needle via a rotating shaft, a threaded sleeve is provided on the surface of the sampling needle, a top ring is rotatably connected to the bottom end of the threaded sleeve, and a connecting plate is hinged on the surface of the top ring via a rotating shaft.

[0009] Preferably, the pressure plate is slidably connected to the surface of the long rod, and the latch teeth are meshed with gears.

[0010] Preferably, one end of the tension spring A is fixedly mounted on the surface of the latch, and the other end of the tension spring A is fixedly mounted on the surface of the pressure plate.

[0011] Preferably, one end of the tension spring B is fixedly mounted on the surface of the pressure plate, and the other end of the tension spring B is fixedly mounted on the surface of the long rod.

[0012] Preferably, the abutment plate is slidably connected to the surface of the connecting pipe A.

[0013] Preferably, one end of the spring is fixedly mounted on the surface of the short rod, and the other end of the spring is fixedly mounted on the surface of the abutment plate.

[0014] Preferably, the surface of the sampling needle is provided with threads, the sampling needle and the threaded sleeve are connected by threads, and the auxiliary plate and the connecting plate are hinged by a rotating shaft.

[0015] A method for using a sampling device for gynecological tumor sample tissue comprises the following steps:

[0016] Compared with the prior art, the advantages and positive effects of the present invention are:

[0017] 1. In the present invention, by arranging a connecting cavity, a negative pressure pump, a filter element, a slide groove, a pressure plate, a latch, a pin, a tension spring A, a long rod, a tension spring B, a gear, a connecting plate, a push rod, and an empty groove, a negative pressure is formed inside the sampling needle through the negative pressure pump, so that part of the tumor tissue can be sucked into the inside of the sampling needle, and the cutting sampling of the sample can be completed by pushing the blade, and the sampling effect is excellent. At the same time, after the sampling work is completed, the pin is pulled upwards, and at this time, the filter element is automatically ejected under the action of the transmission mechanism, avoiding direct contact with the limbs and reducing the spread of germs.

[0018] 2. In the present invention, by providing the connecting tube A, the limiting groove, the arc block, the short rod, the abutment plate, the spring, the connecting tube B, the annular groove, and the sealing ring, the disassembly and assembly work between the sampling needle and the connecting cavity can be quickly performed, and then during the tumor sampling process, the sampling work of tumors in different positions can be performed by quickly replacing the sampling needle, which not only improves the tumor sampling efficiency, but also makes the disassembly and assembly process simple and convenient, and has high practicality.

[0019] 3. In the present invention, by providing an auxiliary plate, a threaded sleeve, a top ring, and a connecting plate, during the sampling process of the sampling needle, the threaded sleeve can be rotated and the top ring can be pushed downward, so that the auxiliary plate can be unfolded under the action of pressure, thereby avoiding the deviation of the sampling position caused by the shaking of the user during the sampling process, thereby improving the accuracy of the sampling work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a sampling device for gynecological tumor sample tissue proposed by the present invention;

[0021] Figure 2 It is a partial exploded schematic diagram of the structure of a sampling device for gynecological tumor sample tissue proposed by the present invention;

[0022] Figure 3 A sampling device for gynecological tumor sample tissue proposed by the present invention Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a schematic diagram of the explosion structure of a stop plate in a sampling device for gynecological tumor sample tissue proposed by the present invention;

[0024] Figure 5 A sampling device for gynecological tumor sample tissue proposed by the present invention Figure 4 Enlarged view of point B in the middle;

[0025] Figure 6 A sampling device for gynecological tumor sample tissue proposed by the present invention Figure 4 Schematic diagram of the upper view;

[0026] Figure 7 An exploded view of a top ring and a threaded sleeve in a sampling device for gynecological tumor sample tissue proposed by the present invention;

[0027] Figure 8 A sampling device for gynecological tumor sample tissue proposed by the present invention Figure 7 Enlarged view of point C in the middle.

[0028] Legend:

[0029] 1. Sampling needle; 2. Sampling port; 3. Blade; 4. Connecting chamber; 5. Negative pressure pump; 6. Filter element; 7. Slide groove; 8. Pressure plate; 9. Gear; 10. Latch; 11. Tension spring A; 12. Long rod; 13. Tension spring B; 14. Gear; 15. Connecting plate; 16. Push rod; 17. Empty groove; 18. Connecting tube A; 19. Limiting groove; 20. Arc block; 21. Short rod; 22. Abutment plate; 23. Spring; 24. Connecting tube B; 25. Annular groove; 26. Sealing ring; 27. Auxiliary plate; 28. Threaded sleeve; 29. ​​Top ring; 30. Connecting plate. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0032] Unless otherwise specified, the reagents, methods and equipment used in the present invention are conventional reagents, methods and equipment in the technical field.

[0033] Embodiment 1

[0034] See also Figure 1-8The present invention provides a technical solution: a sampling device for gynecological tumor sample tissue, comprising a sampling needle 1 and a connecting cavity 4, a sampling port 2 is provided on the inner side of the sampling needle 1, a blade 3 is slidably connected to the inner side of the sampling needle 1, a negative pressure pump 5 is fixedly installed on the back side of the connecting cavity 4, a filter element 6 is arranged on the inner side of the connecting cavity 4, a slide groove 7 is provided on the inner side of the connecting cavity 4, a pressure plate 8 is slidably connected to the inner side of the slide groove 7, a latch 9 is fixedly installed at the bottom end of the pressure plate 8, a latch 10 is inserted into the inner side of the pressure plate 8, a tension spring A11 is sleeved on the surface of the latch 10, a long rod 12 is fixedly installed on the surface of the connecting cavity 4, a tension spring B13 is sleeved on the surface of the long rod 12, a gear 14 is rotatably connected to the surface of the connecting cavity 4, a connecting plate 15 is fixedly installed on the surface of the gear 14, a push rod 16 is fixedly installed on the inner side of the connecting plate 15, and an empty groove 17 is provided on the inner side of the connecting cavity 4.

[0035] In one embodiment, the inner side of the connecting cavity 4 is connected with a connecting tube A18, a limiting groove 19 is provided on the inner side of the connecting tube A18, a curved surface block 20 is slidably connected to the inner side of the limiting groove 19, a short rod 21 is fixedly installed on the surface of the connecting tube A18, a stop plate 22 is slidably connected to the surface of the short rod 21, a spring 23 is sleeved on the surface of the short rod 21, a connecting tube B24 is provided on the surface of the sampling needle 1, an annular groove 25 is provided on the inner side of the connecting tube B24, and a sealing ring 26 is provided on the inner side of the connecting tube B24. The sampling needle 1 and the connecting cavity 4 can be quickly disassembled and assembled, and then in the process of tumor sampling, the sampling needle 1 can be quickly replaced to perform sampling of tumors in different positions, which can improve the efficiency of tumor sampling.

[0036] In one embodiment, the inner side of the sampling needle 1 is hinged with an auxiliary plate 27 through a rotating shaft, and the surface of the sampling needle 1 is provided with a threaded sleeve 28, the bottom end of the threaded sleeve 28 is rotatably connected with a top ring 29, and the surface of the top ring 29 is hinged with a connecting plate 30 through a rotating shaft. By rotating the threaded sleeve 28 and pushing the top ring 29 downward, the auxiliary plate 27 can be unfolded under the action of pressure and the connecting plate 30, thereby avoiding the deviation of the sampling position caused by the shaking of the user during the sampling process, and improving the accuracy of the sampling work.

[0037] In one embodiment, the pressing plate 8 is slidably connected to the surface of the long rod 12, and the latching teeth 9 are meshed with the gear 14. Under the action of the tension spring B13, the pressing plate 8 is driven to slide rapidly toward the rear along the long rod 12, and in this process, the gear 14 is driven to rotate at a certain angle in cooperation with the tooth block of the pressing plate 8.

[0038] In one embodiment, one end of the tension spring A11 is fixedly installed on the surface of the latch 10, and the other end of the tension spring A11 is fixedly installed on the surface of the pressure plate 8. The tension spring A11 can effectively control the latch 10 to limit the pressure plate 8, and prevent the latch 10 from falling out due to external vibration factors.

[0039] In one embodiment, one end of the tension spring B13 is fixedly installed on the surface of the pressure plate 8, and the other end of the tension spring B13 is fixedly installed on the surface of the long rod 12. The tension spring B13 can drive the pressure plate 8 to slide quickly toward the rear side along the long rod 12 after the limit is released.

[0040] In one embodiment, the abutment plate 22 is slidably connected to the surface of the connecting pipe A18. When the abutment plate 22 contacts the arc surface block 20, the arc surface block 20 can be driven to slide inward along the limiting groove 19 under the action of the arc surface and pressure.

[0041] In one embodiment, one end of the spring 23 is fixedly mounted on the surface of the short rod 21, and the other end of the spring 23 is fixedly mounted on the surface of the abutment plate 22. Under the action of the spring 23, the abutment plate 22 is driven to slide forward along the short rod 21, and the abutment plate 22 will not be moved away from the surface of the arc block 20 due to external vibration and other factors.

[0042] In one embodiment, the sampling needle 1 is provided with threads on its surface, the sampling needle 1 is connected to the threaded sleeve 28 by threads, and the auxiliary plate 27 is hinged to the connecting plate 30 by a rotating shaft. The threaded sleeve 28 is rotated and the threaded sleeve 28 is lowered along the sampling needle 1 under the action of the threads, so that the top ring 29 slides downward along the sampling needle 1. At this time, the connecting plate 30 changes its angle and position as the top ring 29 slides, and the auxiliary plate 27 is unfolded.

[0043] Working principle: When sampling, first connect the connecting cavity 4 and the sampling needle 1. First, pinch the plate 22 and drive it to slide backward along the short rod 21. In this process, the spring 23 will be squeezed until the plate 22 no longer presses against the surface of the arc block 20. At this time, the connecting tube B24 of the connecting cavity 4 can be aligned with the connecting tube A18 and inserted. During the insertion of the connecting tube B24, it will first contact the arc block 20. Under the joint action of the arc surface and pressure, the arc block 20 can be driven to slide along the limiting groove 19, so that the connecting tube B24 can be inserted into the inner side of the connecting tube A18, and the sealing ring 26 can be squeezed by force. Then release the plate 22. At this time, under the action of the spring 23, The push plate 22 is driven to slide forward along the short rod 21. In the process of contact between the push plate 22 and the arc block 20, the arc block 20 can be driven to slide inward along the limiting groove 19 under the action of the arc surface and pressure, and reset on the inner side of the annular groove 25. At this time, the installation of the sampling needle 1 and the connecting cavity 4 is completed. Then, the threaded sleeve 28 is rotated and the threaded sleeve 28 is made to descend along the sampling needle 1 under the action of the thread. In the process of the threaded sleeve 28 descending, the top ring 29 will slide downward along the sampling needle 1. At this time, the connecting plate 30 will change its angle and position with the sliding of the top ring 29, so that the auxiliary plate 27 can be rotated along the sampling needle 1, and then the auxiliary plate 27 can be unfolded, and then the sampling needle 1 can be taken. The sample needle 1 is inserted into the tumor tissue, and then the negative pressure pump 5 is started to suck the tumor tissue into the inner side of the sampling port 2, and then the blade 3 is pushed forward, so that the tumor tissue can be cut and sampled. In this process, the auxiliary plate 27 will be attached to the patient's skin surface to avoid position deviation caused by the user's shaking during the sampling process. During the sampling process, the filter element 6 will absorb the blood or body fluid. When discharging, first pull the latch 10 upward and contact the limiting effect between the pressure plate 8 and the connecting cavity 4. At this time, under the action of the tension spring B13, the pressure plate 8 will be driven to slide rapidly to the rear side along the long rod 12. In this process, the tooth block of the pressure plate 8 will drive the gear 14 to rotate. In the process of the gear 14 rotating at a certain angle, The connecting plate 15 cooperates with the push rod 16 to quickly rush to the empty groove 17 and act on the internal filter element 6. Under the action of the impact force, the internal filter element 6 will be driven to pop out quickly. This process does not require physical contact, which reduces the spread of bacteria. When separating the connecting cavity 4 and the sampling needle 1, first pinch the abutment plate 22 and drive it to slide backward along the short rod 21 until the abutment plate 22 no longer abuts against the surface of the arc block 20. Then the sampling needle 1 and the connecting tube B24 can be pulled out from the inner side of the connecting tube A18. Under the action of the arc surface and pressure, the arc block 20 will be driven to slide outward along the limiting groove 19 and pulled out from the inner side of the annular groove 25, thereby completing the separation of the sampling needle 1 and the connecting cavity 4, which is convenient for cleaning.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A sampling device for gynecological tumor sample tissue, comprising a sampling needle (1) and a connecting cavity (4), characterized in that: A sampling port (2) is provided on the inner side of the sampling needle (1), a blade (3) is slidably connected to the inner side of the sampling needle (1), a negative pressure pump (5) is fixedly installed on the back side of the connecting cavity (4), a filter element (6) is arranged on the inner side of the connecting cavity (4), a slide groove (7) is provided on the inner side of the connecting cavity (4), a pressure plate (8) is slidably connected to the inner side of the slide groove (7), a latch tooth (9) is fixedly installed on the bottom end of the pressure plate (8), and a latch pin (10) is inserted into the inner side of the pressure plate (8). 10), a tension spring A (11) is sleeved on the surface of the latch (10), a long rod (12) is fixedly mounted on the surface of the connecting cavity (4), a tension spring B (13) is sleeved on the surface of the long rod (12), a gear (14) is rotatably connected to the surface of the connecting cavity (4), a connecting plate (15) is fixedly mounted on the surface of the gear (14), a push rod (16) is fixedly mounted on the inner side of the connecting plate (15), and a hollow groove (17) is opened on the inner side of the connecting cavity (4).

2. The sampling device for gynecological tumor tissue sample according to claim 1, characterized in that: The inner side of the connecting cavity (4) is connected to a connecting tube A (18), a limiting groove (19) is provided on the inner side of the connecting tube A (18), a curved surface block (20) is slidably connected to the inner side of the limiting groove (19), a short rod (21) is fixedly mounted on the surface of the connecting tube A (18), a stop plate (22) is slidably connected to the surface of the short rod (21), a spring (23) is sleeved on the surface of the short rod (21), a connecting tube B (24) is provided on the surface of the sampling needle (1), an annular groove (25) is provided on the inner side of the connecting tube B (24), and a sealing ring (26) is provided on the inner side of the connecting tube B (24).

3. The sampling device for gynecological tumor tissue sample according to claim 1, characterized in that: The inner side of the sampling needle (1) is hinged with an auxiliary plate (27) via a rotating shaft, the surface of the sampling needle (1) is provided with a threaded sleeve (28), the bottom end of the threaded sleeve (28) is rotatably connected to a top ring (29), and the surface of the top ring (29) is hinged with a connecting plate (30) via a rotating shaft.

4. The sampling device for gynecological tumor tissue sample according to claim 1, characterized in that: The pressing plate (8) is slidably connected to the surface of the long rod (12), and the latching teeth (9) are meshed with the gear (14).

5. The sampling device for gynecological tumor tissue sample according to claim 1, characterized in that: One end of the tension spring A (11) is fixedly mounted on the surface of the latch (10), and the other end of the tension spring A (11) is fixedly mounted on the surface of the pressure plate (8).

6. The sampling device for gynecological tumor tissue sample according to claim 1, characterized in that: One end of the tension spring B (13) is fixedly mounted on the surface of the pressure plate (8), and the other end of the tension spring B (13) is fixedly mounted on the surface of the long rod (12).

7. The sampling device for gynecological tumor tissue sample according to claim 2, characterized in that: The abutment plate (22) is slidably connected to the surface of the connecting pipe A (18).

8. The sampling device for gynecological tumor tissue sample according to claim 2, characterized in that: One end of the spring (23) is fixedly mounted on the surface of the short rod (21), and the other end of the spring (23) is fixedly mounted on the surface of the abutment plate (22).

9. The sampling device for gynecological tumor tissue sample according to claim 3, characterized in that: The surface of the sampling needle (1) is provided with threads, the sampling needle (1) and the threaded sleeve (28) are connected via threads, and the auxiliary plate (27) and the connecting plate (30) are hinged via a rotating shaft.

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