A gynecological tumor sampling device

By designing a sealing mechanism and auxiliary mechanism for the gynecological tumor sampling device, automatic sealing of the needle channel was achieved, solving the problems of unstable sealing and complex operation in the existing technology, reducing the risk of tumor cell spread, and improving the convenience and efficiency of operation.

CN121489547BActive Publication Date: 2026-07-21THE SEVENTH MEDICAL CENTER OF PLA GENERAL HOSPITAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
THE SEVENTH MEDICAL CENTER OF PLA GENERAL HOSPITAL
Filing Date
2025-12-10
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing gynecological tumor sampling devices have difficulty achieving uniform closure of multiple needle tracts during puncture, and the operation is complex and inefficient, increasing the risk of tumor cell spread.

Method used

A gynecological tumor sampling device was designed, comprising a puncture cannula, a sampling mechanism, a sealing mechanism, and an auxiliary mechanism. The device achieves automatic closure of the needle path through the sealing element of the puncture needle core, and automatically loads the sealing element through the auxiliary mechanism, thus simplifying the operation process.

Benefits of technology

This method achieves stable closure of multiple segments of the puncture needle tract, reduces the risk of tumor cell spread, and improves the convenience and efficiency of the procedure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a gynecological tumor sampling device and relates to the field of medical diagnosis instruments, which solves the problems that the existing gynecological tumor sampling device is difficult to perform multi-section closure on a puncture needle channel and is not convenient and efficient to operate as a whole, and comprises a puncture sleeve, a device box, a puncture needle core, a sampling mechanism, a closure mechanism and an auxiliary mechanism, wherein the closure mechanism comprises a closure piece and a puncture needle head, the gynecological tumor sampling device can guide the puncture sleeve to a required position by puncturing through the puncture needle head during puncturing, can perform tumor sampling operation through the sampling mechanism, can remove the puncture needle head when the puncture sleeve needs to be pulled out, can realize the closure function by sequentially outputting a plurality of closure pieces in the puncture needle core into the puncture needle channel, can assist in disassembling and assembling the puncture needle head through the auxiliary mechanism, and can complete automatic loading operation on the closure piece, so that the gynecological tumor sampling device has the advantages of simple structure, high operation efficiency, high internal structural strength and stable and convenient use.
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Description

Technical Field

[0001] This invention relates to the field of medical diagnostic device technology, specifically a gynecological tumor sampling device. Background Technology

[0002] Gynecological tumors are a major threat to women's health, with the incidence of ovarian cancer, cervical cancer, and endometrial cancer showing an increasing trend year by year, and the age of onset gradually becoming younger. Early and accurate diagnosis is key to improving the survival rate and prognosis of gynecological tumor patients, and obtaining tumor tissue samples is a core prerequisite for pathological diagnosis, gene testing, and treatment plan formulation. Currently, commonly used gynecological tumor sampling methods include needle biopsy, endoscopic biopsy, and surgical resection biopsy. Among these, needle biopsy is widely used for deep pelvic tumors, metastatic tumors, and patients who cannot tolerate surgical biopsy due to its advantages such as minimal invasiveness, ease of operation, and high repeatability.

[0003] The puncture needle tract formed during the puncture process is prone to tumor cell detachment and metastasis, namely "needle tract seeding metastasis". Existing sealing methods are mostly single-material single-filling, which makes it difficult to achieve uniform sealing of the entire needle tract in multiple segments. The sealing effect is unstable. In addition, the sealing filler of the existing devices needs to be manually filled, which is complicated and inefficient. Summary of the Invention

[0004] The purpose of this invention is to provide a gynecological tumor sampling device that facilitates the reduction of the risk of tumor cell spread within the puncture needle tract, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a gynecological tumor sampling device, comprising a puncture cannula, a device box, a sampling mechanism, a sealing mechanism, and an auxiliary mechanism. A puncture needle core is movably sleeved inside the puncture cannula. The sampling mechanism is installed inside the puncture cannula for tumor sampling. The sealing mechanism includes a sealing element installed inside the puncture needle core. The puncture needle core is tubular, with a puncture needle tip at one end. The sealing mechanism guides the puncture cannula to the desired position during puncture via the puncture needle tip. When the puncture cannula needs to be removed, the puncture needle tip is removed, and the sealing element inside the puncture needle core is output to the puncture needle tract to achieve the sealing function. The auxiliary mechanism is installed inside the device box to assist in the assembly and disassembly of the puncture needle tip and to automatically fill the sealing element, thereby reducing the risk of tumor cell spread within the puncture needle tract.

[0006] Preferably, the sealing element includes a sealing ring that slides and fits against the inner wall of the puncture needle core. A support rod is connected inside the sealing ring. A top plate is fixedly connected to the upper side of the support rod, and a bottom plate is fixedly connected to the lower side of the support rod. The upper and lower sides of the sealing ring fit against the top plate and the bottom plate respectively, which facilitates the sealing operation of the puncture needle channel.

[0007] Preferably, the closure mechanism further includes a pressing block fixedly installed at one end of the puncture needle core. A first electric telescopic rod is fixedly connected inside the pressing block. A push rod is fixedly connected to the telescopic end of the first electric telescopic rod. The push rod is slidably connected to the inner wall of the puncture needle core. The bottom end of the push rod can abut against the top surface of the uppermost set of top plates. The bottom inner wall of the puncture needle core is provided with an installation thread. A threaded rod that can be threadedly connected to the installation thread is fixedly connected to the puncture needle head. A sleeve is fixedly connected to the top end of the puncture cannula. The pressing block can be sleeved with the inner wall of the sleeve. A control button for controlling the telescopic state of the first electric telescopic rod is provided on the side of the pressing block. This facilitates puncturing the puncture cannula to the required position through the puncture needle head during puncture. When it is necessary to remove the puncture cannula, the puncture needle head is removed, and the closure function is achieved by outputting the closure component inside the puncture needle core into the puncture needle channel.

[0008] Preferably, the auxiliary mechanism includes a rotating ring installed inside the device box. The device box has a disinfection chamber, a drying chamber, and a feeding chamber. The rotating ring is located inside the disinfection chamber and is rotatably connected to the device box. The device box is provided with a disinfection component for disinfecting the disinfection chamber. The feeding chamber is provided with a feeding component for feeding the sealing component inside the puncture needle core. The rotating ring is provided with a disassembly and assembly component for assisting in the disassembly and assembly of the puncture needle, which facilitates the disassembly and assembly of the puncture needle and enables the automatic filling operation of the sealing component.

[0009] Preferably, the disassembly and assembly components include multiple sets of first electric push rods fixedly installed inside the device box, multiple sets of second electric push rods fixedly connected inside the rotating ring, clamping blocks fixedly connected to the telescopic ends of the first and second electric push rods respectively, an external gear ring fixedly connected to the bottom of the rotating ring, a drive motor fixedly connected inside the device box, and a drive gear fixedly connected to the output end of the drive motor, the drive gear meshing with the external gear ring to facilitate the disassembly and assembly of the puncture needle.

[0010] Preferably, the disinfection component includes a connector fixedly installed on the inner wall of the rotating ring, the puncture needle can be inserted into the connector, the connector has multiple sets of output slots, the device box has an annular groove, the rotating ring has multiple sets of connecting pipes for connecting the annular groove and the output slots, the device box has a disinfection tank and a collection box, a delivery pump and a suction pump are fixedly connected in the device box, the device box has a first pipe and a second pipe, one end of the first pipe is connected to the annular groove, and one end of the second pipe is connected to the output slot, the delivery pump is used to deliver the disinfectant in the disinfection tank to the first pipe, the suction pump is used to draw the disinfectant in the output slot through the second pipe to the collection box, and both the connecting pipe and the second pipe are provided with one-way valves, the one-way valves are used to control the fluid to be delivered unidirectionally from the connecting pipe to the output slot and then from the output slot to the second pipe, so as to facilitate disinfection of the disinfection chamber.

[0011] Preferably, the feeding component includes a second electric telescopic rod fixedly installed inside the device box, and a storage tube is movably sleeved inside the feeding chamber. The storage tube is used to store multiple sets of the sealing components. The inner and outer diameters of the storage tube are the same as those of the puncture needle core. The telescopic end of the second electric telescopic rod can slide and fit against the inner wall of the storage tube, which facilitates the feeding operation of the sealing components inside the puncture needle core.

[0012] Preferably, the sampling mechanism includes a sampling needle that is movably sleeved with the inner wall of the puncture cannula, and an operating handle is provided above the sampling needle to facilitate the sampling operation.

[0013] Preferably, a dryer is fixedly connected to the device box, and the output end of the dryer is connected to the drying chamber to facilitate drying of the puncture needle core after disinfection.

[0014] Preferably, the side of the base plate is provided with a plurality of first side holes evenly distributed, and the side of the support rod is provided with a plurality of second side holes. The first side holes are connected to the second side holes, and one end of the second side hole faces the inner wall of the sealing ring, so as to facilitate the introduction of fluid into the inner wall of the sealing ring and improve its expansion and sealing efficiency.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention provides a gynecological tumor sampling device that solves the problems of existing gynecological tumor sampling devices, such as difficulty in multi-segment closure of the puncture needle path and inconvenience and inefficiency in overall operation. During puncture, the puncture needle guides the puncture cannula to the desired position, and the sampling mechanism performs tumor sampling. When the puncture cannula needs to be removed, the puncture needle is removed, and multiple sets of sealing components inside the puncture needle core are sequentially output into the puncture needle path to achieve closure. An auxiliary mechanism assists in the disassembly and assembly of the puncture needle and can automatically fill the sealing components. This device has a simple structure, high efficiency, high internal structural strength, and is more stable and convenient to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 Enlarged view of region A in the middle; Figure 3 This is a partial structural diagram of the sampling mechanism of the present invention; Figure 4 for Figure 3 Enlarged view of region B in the middle; Figure 5 This is a partial structural diagram of the auxiliary mechanism of the present invention; Figure 6 for Figure 5 Enlarged view of region C; Figure 7 This is a cross-sectional view of the auxiliary mechanism structure of the present invention; Figure 8 for Figure 7 Enlarged view of region D in the middle; Figure 9 This is a partial structural cross-sectional view of the closure mechanism of the present invention; Figure 10 for Figure 9 Enlarged view of region E in the middle; Figure 11 for Figure 9 Enlarged view of the F region.

[0017] In the diagram: 1-Puncture cannula; 2-Device box; 3-Puncture needle core; 4-Puncture needle head; 5-Sealing ring; 6-Support rod; 7-Top plate; 8-Bottom plate; 9-Pressing block; 10-First electric telescopic rod; 11-Push rod; 12-Installation thread; 13-Threaded rod; 14-Socket; 15-Control button; 16-Rotating ring; 17-Disinfection chamber; 18-Drying chamber; 19-Feeding chamber; 20-First electric push rod; 21-Second electric push rod; 2 2-Clamping block; 23-External gear ring; 24-Drive motor; 25-Drive gear; 26-Plug-in socket; 27-Output slot; 28-Annular slot; 29-Connecting pipe; 30-Disinfection tank; 31-Collection box; 32-Transfer pump; 33-Suction pump; 34-First pipe; 35-Second pipe; 36-Second electric telescopic rod; 37-Storage tube; 38-Sampling needle; 39-Operating handle; 40-Dryer; 41-First side hole; 42-Second side hole. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-8 This invention provides a technical solution: a gynecological tumor sampling device, including a puncture cannula 1, a device box 2, a sampling mechanism, a sealing mechanism, and an auxiliary mechanism. A puncture needle core 3 is movably sleeved inside the puncture cannula 1. The sampling mechanism is installed inside the puncture cannula 1 for tumor sampling. The sampling mechanism includes a sampling needle 38 movably sleeved with the inner wall of the puncture cannula 1, and an operating handle 39 is provided above the sampling needle 38. The sealing mechanism includes a sealing element installed inside the puncture needle core 3. The puncture needle core 3 is tubular, and one end of the puncture needle core 3 is provided with a puncture needle tip 4. The sealing mechanism can guide the puncture cannula 1 to the desired position during puncture by puncturing with the puncture needle tip 4. When it is necessary to remove the puncture cannula 1, the puncture needle tip 4 is removed, and the sealing element inside the puncture needle core 3 is output to the puncture needle channel to achieve the sealing function. The auxiliary mechanism is installed inside the device box 2 to assist in the disassembly and assembly of the puncture needle tip 4 and to complete the automatic filling operation of the sealing element.

[0020] Please see Figures 3-11The closure mechanism shown in the diagram includes a closure ring 5 that slides against the inner wall of the puncture needle core 3. A support rod 6 is connected inside the closure ring 5. A top plate 7 is fixedly connected to the upper side of the support rod 6, and a bottom plate 8 is fixedly connected to the lower side of the support rod 6. The upper and lower sides of the closure ring 5 are respectively fitted against the top plate 7 and the bottom plate 8. Multiple sets of first side holes 41 are evenly distributed on the side of the bottom plate 8, and multiple sets of second side holes 42 are distributed on the side of the support rod 6. The first side holes 41 and the second side holes 42 communicate with each other, with one end of the second side hole 42 facing the inner wall of the closure ring 5. The closure mechanism also includes a pressing block 9 fixedly installed at one end of the puncture needle core 3. The pressing block 9 has a fixed internal structure... A first electric telescopic rod 10 is fixedly connected, and a push rod 11 is fixedly connected to the telescopic end of the first electric telescopic rod 10. The push rod 11 is slidably connected to the inner wall of the puncture needle core 3. The bottom end of the push rod 11 can abut against the top surface of the uppermost set of top plates 7. The inner wall of the bottom end of the puncture needle core 3 is provided with an installation thread 12. A threaded rod 13 that can be threadedly connected to the installation thread 12 is fixedly connected to the puncture needle head 4. A sleeve 14 is fixedly connected to the top end of the puncture sleeve 1. The pressing block 9 can be sleeved with the inner wall of the sleeve 14. A control button 15 for controlling the telescopic state of the first electric telescopic rod 10 is provided on the side of the pressing block 9.

[0021] Please see Figures 1-11 The auxiliary mechanism shown in the diagram includes a rotating ring 16 installed inside the device box 2. The device box 2 has a disinfection chamber 17, a drying chamber 18, and a feeding chamber 19. A dryer 40 is fixedly connected to the device box 2, and the output end of the dryer 40 is connected to the drying chamber 18. The rotating ring 16 is located inside the disinfection chamber 17 and is rotatably connected to the device box 2. The device box 2 is equipped with a disinfection component for disinfecting the disinfection chamber 17. The feeding chamber 19 is equipped with a feeding component for feeding the sealing component inside the puncture needle core 3. The rotating ring 16 is equipped with a component for assisting in the feeding of the puncture needle head 4. The disassembly and assembly components include multiple sets of first electric push rods 20 fixedly installed inside the device box 2, multiple sets of second electric push rods 21 fixedly connected inside the rotating ring 16, clamping blocks 22 fixedly connected to the telescopic ends of the first electric push rods 20 and the second electric push rods 21 respectively, an external gear ring 23 fixedly connected to the bottom of the rotating ring 16, a drive motor 24 fixedly connected inside the device box 2, preferably an LD60 micro motor, a drive gear 25 fixedly connected to the output end of the drive motor 24, and the drive gear 25 meshing with the external gear ring 23.

[0022] Please see Figures 5-11The disinfection unit shown in the diagram includes a connector 26 fixedly installed on the inner wall of a rotating ring 16. A puncture needle 4 can be inserted into the connector 26. Multiple output slots 27 are provided within the connector 26. An annular groove 28 is provided within the device box 2. Multiple connecting pipes 29 connecting the annular groove 28 and the output slots 27 are provided within the rotating ring 16. A disinfection tank 30 and a collection box 31 are provided within the device box 2. A delivery pump 32 and a suction pump 33 are fixedly connected within the device box 2. A first pipe 34 and a second pipe 35 are provided within the device box 2. One end of the first pipe 34 is connected to the annular groove 28, and one end of the second pipe 35 is connected to the output slot 27. The delivery pump 32 is used to pump the contents of the disinfection tank 30... The disinfectant is delivered to the first pipe 34. The suction pump 33 is used to draw the disinfectant in the output tank 27 into the collection tank 31 through the second pipe 35. One-way valves are provided in both the connecting pipe 29 and the second pipe 35. The one-way valves are used to control the fluid to be delivered unidirectionally from the connecting pipe 29 to the output tank 27 and then from the output tank 27 to the second pipe 35. The feeding component includes a second electric telescopic rod 36 fixedly installed in the device box 2. A storage tube 37 is movably sleeved in the feeding chamber 19. The storage tube 37 is used to store multiple sets of sealing components. The inner and outer diameters of the storage tube 37 are the same as those of the puncture needle core 3. The telescopic end of the second electric telescopic rod 36 can slide and fit against the inner wall of the storage tube 37.

[0023] Working principle: Insert the puncture needle core 3 with the puncture needle tip 4 into the puncture cannula 1, so that the pressing block 9 is inserted into the sleeve 14 and fixed by the corresponding limiting structure. Then, align the puncture needle tip 4 with the required puncture position and push the pressing block 9 so that the puncture cannula 1 and the puncture needle core 3 are punctured as a whole and the puncture needle tip 4 reaches the required sampling position. Then, release the fixed state between the pressing block 9 and the sleeve 14, pull out the pressing block 9, and take out the puncture needle core 3 and the puncture needle tip 4 together from the inside of the puncture cannula 1. Insert the sampling needle 38, control the operating handle 39 to complete the tumor sampling, and then pull out the sampling needle 38 to complete the sampling operation.

[0024] When removing the puncture needle core 3, it needs to be inserted into the disinfection chamber 17 so that the bottom end of the puncture needle head 4 is inserted into the insertion seat 26. The first electric push rod 20 is controlled to push the clamping block 22 to clamp and fix the side wall of the puncture needle core 3. The delivery pump 32 and the suction pump 33 are controlled to run, pumping the disinfectant in the disinfection tank 30 to the first pipe 34, and then transporting it to the output tank 27 through the annular groove 28 and the connecting pipe 29. The drive motor 24 is started to drive the drive gear 25 to rotate, thereby driving the external gear ring 23 to rotate the rotating ring 16 and the insertion seat 26, continuously switching the position of the output tank 27, and at the same time agitating the disinfectant to fully disinfect the outer wall of the puncture needle head 4 and the bottom of the puncture needle core 3. The disinfected disinfectant is then pumped to the collection box 31 through the second pipe 35 by the suction pump 33 for recycling, completing the overall disinfection operation. Afterwards, the second electric push rod 21 is controlled to push the clamping block 22 out, completing the process. The side wall of the puncture needle 4 is clamped, and under the drive of the drive motor 24, the rotating ring 16 drives the clamping block 22 to rotate the puncture needle 4. The threaded rod 13 is disconnected from the installation thread 12. At this time, the clamping block 22 on the first electric push rod 20 can be released from the clamping state of the puncture needle core 3. The pressing block 9 is held and gradually pulled up to prevent the threaded rod 13 from driving the puncture needle core 3 to rotate synchronously during the rotation. At the same time, the puncture needle core 3 can also be moved upward to release the threaded connection. After the release is completed, the puncture needle core 3 is directly pulled out and inserted into the drying chamber 18. The dryer 40 is started to dry the bottom outer wall of the puncture needle core 3. Since the outer wall of the puncture needle core 3 is tightly fitted and slides with the inner wall of the puncture cannula 1, only a small amount of tissue fluid will reach the bottom position of the puncture needle core 3 during the puncture process and will not overflow to the top. Therefore, it is only necessary to disinfect and dry the bottom position of the puncture needle 4 and the puncture needle core 3.

[0025] After drying, insert the puncture needle core 3 into the feeding chamber 19, so that the bottom end of the puncture needle core 3 abuts against the top surface of the storage tube 37. Control the second electric telescopic rod 36 to push out, which will push the multiple sets of sealing components inside the storage tube 37 into the puncture needle core 3. When the second electric telescopic rod 36 pushes out, it is necessary to control the first electric telescopic rod 10 to pull back, so that the push rod 11 moves upward to make room for the storage of the sealing components. Finally, the bottom plate 8 at the bottom should be flush with the bottom surface of the puncture needle core 3. Then pull out the puncture needle core 3. The storage tube is a replaceable structure. Manufacturers can directly produce a cylindrical structure with a storage tube shell and multiple sets of sealing components inside for packaging and use, which improves subsequent usage efficiency. After the sampling needle 38 is pulled out and the sampling is completed, insert the puncture needle core 3 into the puncture sleeve 1. At this time, there is no puncture needle head 4 at the top of the puncture needle core 3. After fixing the pressing block 9 and the sleeve 14, The puncture needle core 3 and puncture cannula 1 can be pulled out together. During the pulling process, the control button 15 can be pressed as needed to push the push rod 11 out of the first electric telescopic rod 10. Each extension is a set distance, which can push a set of sealing elements to the required position to seal the puncture needle channel. Multiple outputs of the sealing elements during the pulling process can complete multiple closures, effectively preventing the spread of tumor cells through the puncture needle channel. After the puncture needle core 3 is pulled out, it can be disinfected again in the disinfection chamber 17, and the rotating ring 16 can be controlled to rotate in the opposite direction to install the disinfected puncture needle head 4 at the bottom of the puncture needle core 3 for subsequent use. The device has a simple structure and is highly efficient in operation. During the puncture, the inner wall of the puncture needle core 3 is completely filled by the push rod 11 and the threaded rod 13, which has high structural strength and is more stable in use. The disinfection tank 30 and the collection box 31 are both replaceable and disinfectable fluid storage structures.

[0026] It is worth noting that: the closing ring 5 is made of chitosan-based composite material, which can expand rapidly by about 2 times when it comes into contact with liquid, thus completing the closure of the puncture needle path. At the same time, it can be degraded and absorbed within 1-4 weeks. The base plate 8, top plate 7, and support rod 6 are made of polycaprolactone-polyethylene glycol block copolymer PCL-PEG, which has waterproof properties and a certain degree of elasticity. It can be absorbed in the body, thus achieving the function of sealing both ends of the closing ring 5. After output, the outside of the closing ring 5 expands when it comes into contact with liquid. The fluid can flow through the first side hole 41 and the second side hole 42 to the inner wall of the closing ring 5, causing the inside of the closing ring 5 to also expand, thus increasing the sealing speed. The mounting thread 12 is a protruding design, which can abut against the bottom surface of the base plate 8, improving the sealing performance and ensuring that tissue fluid will not enter the area around the closing ring 5 on the inner wall of the puncture needle core 3 when the push rod 11 is not pushed. The bottom end of the push rod 11 is constricted, which can ensure the pushing force on the top plate 7 when pushed without friction with the inner wall of the mounting thread 12.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gynecological tumor sampling device, characterized in that, include: The puncture cannula (1) and the device box (2) are provided with a puncture needle core (3) inside the puncture cannula (1). Also includes: A sampling mechanism is installed inside the puncture cannula (1) for tumor sampling operations; The sealing mechanism includes a sealing element installed inside the puncture needle core (3). The puncture needle core (3) is tubular and has a puncture needle head (4) at one end. The sealing mechanism can guide the puncture cannula (1) to the required position by puncturing through the puncture needle head (4) during puncture. When it is necessary to pull out the puncture cannula (1), the puncture needle head (4) is removed, and the sealing function is achieved by outputting the sealing element inside the puncture needle core (3) into the puncture needle channel. An auxiliary mechanism is installed inside the device box (2) to assist in the disassembly and assembly of the puncture needle (4) and to complete the automatic filling operation of the closure component. The closure component includes a closure ring (5) that slides against the inner wall of the puncture needle core (3). A support rod (6) is connected inside the closure ring (5). A top plate (7) is fixedly connected to the upper side of the support rod (6), and a bottom plate (8) is fixedly connected to the lower side of the support rod (6). The upper and lower sides of the closure ring (5) are respectively attached to the top plate (7) and the bottom plate (8). The closing mechanism also includes a pressing block (9) fixedly installed at one end of the puncture needle core (3). A first electric telescopic rod (10) is fixedly connected inside the pressing block (9). A push rod (11) is fixedly connected to the telescopic end of the first electric telescopic rod (10). The push rod (11) is slidably connected to the inner wall of the puncture needle core (3). The bottom end of the push rod (11) can abut against the top surface of the uppermost set of top plates (7). The inner wall of the bottom end of the puncture needle core (3) is provided with an installation thread (12). A threaded rod (13) that can be threadedly connected to the installation thread (12) is fixedly connected to the puncture needle head (4). A sleeve (14) is fixedly connected to the top end of the puncture cannula (1). The pressing block (9) can be sleeved with the inner wall of the sleeve (14). A control button (15) for controlling the telescopic state of the first electric telescopic rod (10) is provided on the side of the pressing block (9). The auxiliary mechanism includes a rotating ring (16) installed in the device box (2). The device box (2) has a disinfection chamber (17), a drying chamber (18) and a feeding chamber (19). The rotating ring (16) is located in the disinfection chamber (17) and is rotatably connected to the device box (2). The device box (2) is provided with a disinfection component for disinfecting the disinfection chamber (17). The feeding chamber (19) is provided with a feeding component for feeding the sealing component inside the puncture needle core (3). The rotating ring (16) is provided with a disassembly and assembly component for assisting in disassembling and assembling the puncture needle head (4). The feeding component includes a second electric telescopic rod (36) fixedly installed in the device box (2). A storage tube (37) is movably sleeved in the feeding chamber (19). The storage tube (37) is used to store multiple sets of the sealing components. The inner diameter and outer diameter of the storage tube (37) are the same as those of the puncture needle core (3). The telescopic end of the second electric telescopic rod (36) can slide and fit against the inner wall of the storage tube (37). The base plate (8) has multiple sets of first side holes (41) evenly distributed on its side, and the support rod (6) has multiple sets of second side holes (42) distributed on its side. The first side holes (41) are connected to the second side holes (42), and one end of the second side hole (42) faces the inner wall of the closed ring (5).

2. The gynecological tumor sampling device according to claim 1, characterized in that: The assembly / disassembly assembly includes multiple sets of first electric push rods (20) fixedly installed inside the device box (2), multiple sets of second electric push rods (21) fixedly connected inside the rotating ring (16), clamping blocks (22) fixedly connected to the telescopic ends of the first electric push rods (20) and the second electric push rods (21), an external gear ring (23) fixedly connected to the bottom of the rotating ring (16) on the same axis, a drive motor (24) fixedly connected inside the device box (2), a drive gear (25) fixedly connected to the output end of the drive motor (24) on the same axis, and the drive gear (25) meshing with the external gear ring (23).

3. The gynecological tumor sampling device according to claim 1, characterized in that: The disinfection component includes a connector (26) fixedly installed on the inner wall of the rotating ring (16), the puncture needle (4) being able to be inserted into the connector (26), the connector (26) having multiple sets of output slots (27), the device box (2) having an annular groove (28), the rotating ring (16) having multiple sets of connecting pipes (29) for connecting the annular groove (28) and the output slots (27), the device box (2) having a disinfection tank (30) and a collection box (31), the device box (2) having a delivery pump (32) and a suction pump (33) fixedly connected inside the device box (2), and the device box (2) having a first pipe (34) and a second pipe (35). One end of the first pipe (34) is connected to the annular groove (28), and one end of the second pipe (35) is connected to the output groove (27). The delivery pump (32) is used to deliver the disinfectant in the disinfection tank (30) to the first pipe (34). The suction pump (33) is used to draw the disinfectant in the output groove (27) through the second pipe (35) into the collection box (31). One-way valves are provided in both the connecting pipe (29) and the second pipe (35). The one-way valves are used to control the fluid to be transported unidirectionally from the connecting pipe (29) to the output groove (27) and then from the output groove (27) to the second pipe (35).

4. The gynecological tumor sampling device according to claim 1, characterized in that: The sampling mechanism includes a sampling needle (38) that is movably sleeved on the inner wall of the puncture cannula (1), and an operating handle (39) is provided above the sampling needle (38).

5. A gynecological tumor sampling device according to claim 1, characterized in that: A dryer (40) is fixedly connected to the device box (2), and the output end of the dryer (40) is connected to the drying chamber (18).