Endometrial suction device and method under guidance of B ultrasound
By combining the design suction, cleaning and locking mechanism, the problems of incomplete cleaning of foreign objects in the endometrial suction device under B-ultrasound guidance and unstable sample storage are solved, and an efficient and safe sampling and diagnosis process is achieved.
Patent Information
- Application Number
- CN202510596291.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2025-07-11
AI Technical Summary
The existing B-ultrasound-guided endometrial suction device cannot effectively clean the residual foreign objects during the suction process, the sample storage and storage are unstable, and the operation is insufficient, which affects the diagnostic accuracy and user experience.
A device including an attraction mechanism, a cleaning mechanism and a locking mechanism are designed. The attraction mechanism cooperates with an external attraction pump and a camera for precise attraction. The cleaning mechanism is used to clean and store residual foreign matter. The locking mechanism is used to control the cleaning range and sample storage to ensure the stability and integrity of the sample.
It improves sampling accuracy and diagnostic accuracy, reduces misoperation, ensures stable storage and storage of samples, and improves operation safety and convenience.
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Figure CN120284429A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical devices, and particularly to an endometrial aspiration device and method under B-ultrasound guidance. Background Art
[0002] With the development of medical technology, endometrial aspiration devices under B-ultrasound guidance have been widely used in gynecological diagnosis and treatment. Such devices can be operated under visual conditions, accurately guided to the target area by B-ultrasound, and the endometrium can be aspirated, which can better solve the problems of many operation blind spots and inaccurate sampling in traditional methods, thereby improving the effectiveness of diagnosis and treatment.
[0003] At present, the existing endometrial aspiration devices under B-ultrasound guidance have a certain operation accuracy. Using the real-time imaging positioning of B-ultrasound, they can help medical staff effectively obtain the target tissue and reduce the accidental injury to the uterine inner wall. The advantages of such devices are that they shorten the operation time and reduce the pain of patients.
[0004] However, there are still some deficiencies in the existing B-ultrasound-guided endometrial aspiration devices during use. First, for the residual foreign matters that cannot be directly cleaned during the aspiration process, there is a lack of effective cleaning and collection devices, resulting in the integrity of the samples being affected and restricting the subsequent analysis accuracy. Second, the stability of the existing devices in sample storage and storage is insufficient, lacking effective locking and protection measures, and the samples are prone to falling off or being contaminated during the storage process, affecting the accuracy of diagnosis. In addition, the operation convenience of such devices needs to be improved. Especially during the cleaning and sampling processes, there is a lack of reasonable control and auxiliary mechanisms, which are prone to misoperation and result in poor use experience. Summary of the Invention
[0005] Aiming at the deficiencies of the prior art, the present invention provides an endometrial aspiration device and method under B-ultrasound guidance, which solves the problems of imperfect cleaning and collection of residual foreign matters, insufficient stability of sample storage, and low operation convenience.
[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: An endometrial aspiration device under B-ultrasound guidance, comprising:
[0007] An aspiration mechanism, used to connect the device with an external aspiration pump and a display, and complete the aspiration operation;
[0008] A cleaning mechanism, which is arranged on the periphery of the aspiration mechanism, used to clean and store the objects that cannot be aspirated, facilitating sampling and testing for different objects that cannot be aspirated;
[0009] A locking mechanism is provided outside the cleaning mechanism to control the cleaning range of the cleaning mechanism and can accommodate the sampled object at the same time, thereby preventing the sampled object from falling off.
[0010] Preferably, the suction mechanism includes a tube body. One end of the tube body is fixedly connected with a connecting plate, the other end of the tube body is fixedly connected with a drainage plate, and a camera is fixedly connected to the other side of the drainage plate.
[0011] Preferably, the cleaning mechanism includes a sleeve which is sleeved on the outer periphery of the tube body. A connecting ring is fixedly connected to the outer periphery of the tube body. A plurality of turning plates are rotatably connected to one end of the sleeve away from the connecting plate. All the plurality of turning plates are in contact with the connecting ring. A compression spring is fixedly connected to the inside of the turning plate, and the other end of the compression spring is fixedly connected with a collecting plate. The collecting plate is slidably connected to the side of the turning plate away from the connecting ring. An I-shaped wire reel is rotatably connected to the inner wall of the connecting ring. A pulling rope is fixedly connected to the outside of the I-shaped wire reel, and the other end of the pulling rope is fixedly connected to the side of the collecting plate close to the compression spring.
[0012] Preferably, the locking mechanism includes a first mounting plate which is sleeved on the outer periphery of the tube body. The first mounting plate and the pulling rope are connected by a connecting rod. A second mounting plate is fixedly connected to the outer periphery of one end of the sleeve away from the drainage plate. A clamping groove is formed in the middle of the second mounting plate. A return spring is fixedly connected to the inside of the first mounting plate, and the other end of the return spring is fixedly connected with an L-shaped plate. A clamping block is fixedly connected to the outside of the L-shaped plate. The clamping block is in contact with the second mounting plate, and the clamping block and the second mounting plate are in plug-in fit.
[0013] Preferably, a partition plate is fixedly connected to the inside of the turning plate, and the partition plate is fixedly connected between the compression spring and the collecting plate.
[0014] Preferably, an arc is provided on the side of the clamping block close to the second mounting plate, and the arc portion provided by the second mounting plate and the clamping block are in contact.
[0015] Preferably, a spring groove is formed in the middle of the first mounting plate, which is used to provide a position for spring installation and at the same time provide a position for the parallel sliding of the L-shaped plate.
[0016] Preferably, a handle is fixedly connected to the side of the first mounting plate away from the second mounting plate, and anti-slip grooves are provided on the outside of the handle.
[0017] Preferably, a dial plate is fixedly connected to the side of the L-shaped plate away from the first mounting plate, and the dial plate is used to increase the pressing feel.
[0018] The present invention also provides a method for using an endometrial aspiration device under B-ultrasound guidance, comprising the following steps:
[0019] Step 1: By pressing the sleeve and the first mounting plate forward, the sleeve and the tube body are moved to the position where they are needed. After entering, the tube body is driven to move forward by separately pushing the connecting plate. During the forward movement of the tube body, the first mounting plate will be driven to approach the second mounting plate, and at the same time, the drainage plate will squeeze the flap, so that the flap opens. At the same time, the connecting plate is connected to an external suction pump. At this time, the operator can view the position of the device through B-ultrasound via the camera, and when suction is required, the external suction pump is started to generate suction on the drainage plate and the connecting plate, so as to suck out foreign matters. While the first mounting plate is approaching the second mounting plate, the second mounting plate will squeeze the latch, thereby driving the L-shaped plate to compress the return spring. When the first mounting plate moves to contact the second mounting plate and the latch and the card slot are in a parallel position, the L-shaped plate is squeezed by the elastic force of the return spring, so that the L-shaped plate drives the latch to enter the card slot. At this time, the locking mechanism and the sleeve can be quickly connected and fixed, avoiding the problem that the locking mechanism rotates, resulting in the release of the pull rope and the ejection of the collection plate when sampling and cleaning are not required;
[0020] Step 2: By pressing the L-shaped plate to compress the return spring and separating the latch from the second mounting plate, the first mounting plate and the second mounting plate can be separated at this time. After separation, the first mounting plate is rotated to drive the I-shaped wire reel to rotate, thereby releasing the pull rope. At this time, under the action of the compressed compression spring, the collection plate can be ejected. At this time, the collection plate can clean and sample foreign matters that cannot be cleaned by rotating the sleeve, so as to better unlock corresponding countermeasures after sampling and analysis.
[0021] The present invention provides an endometrial aspiration device and method under B-ultrasound guidance. It has the following beneficial effects:
[0022] 1. Through the cooperation of the suction mechanism with the external suction pump and the camera, the present invention realizes the efficient suction of endometrial tissue. The camera provides precise positioning support, enabling the operator to observe the position in real time, greatly improving the sampling accuracy, reducing the possibility of misoperation, and enhancing the safety and convenience of the operation.
[0023] 2. Through the cleaning mechanism, the present invention can not only effectively clean residual foreign matters during the suction process, but also has the functions of sample collection and storage. Through the coordinated action of the flap and the compression spring, foreign matters that cannot be sucked can be stably collected during the operation, facilitating subsequent analysis, thereby improving the accuracy and integrity of the diagnosis.
[0024] 3. The present invention provides precise cleaning range control and sample storage locking functions through a locking mechanism. Through the coordinated action of the mounting plate, the clamping block, and the spring, the stable storage and storage of the sample are ensured, avoiding the loss of the sample during the sampling process, and at the same time enhancing the operation stability and service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 is a perspective view of the present invention;
[0026] Figure 2 is a schematic structural view of the connecting ring of the present invention;
[0027] Figure 3 is a schematic structural view of the connecting rod of the present invention;
[0028] Figure 4 is a schematic structural view of the camera of the present invention;
[0029] Figure 5 is a schematic structural view of the collection plate of the present invention;
[0030] Figure 6 is a schematic structural view of the card slot of the present invention;
[0031] Figure 7 is a schematic structural view of the clamping block of the present invention.
[0032] Among them, 10, suction mechanism; 101, tube body; 102, connecting disk; 103, drainage disk; 104, camera; 20, cleaning mechanism; 201, sleeve; 202, connecting ring; 203, flap; 204, compression spring; 205, collection plate; 206, I-shaped wire reel; 207, pull rope; 30, locking mechanism; 301, mounting plate one; 302, connecting rod; 303, return spring; 304, L-shaped plate; 305, clamping block; 306, mounting plate two; 307, card slot; 308, grip. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the specification of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0034] Please refer to the attached Figure 1 - attached Figure 7 , the embodiment of the present invention provides a B-ultrasound-guided endometrial aspiration device, including:
[0035] The suction mechanism 10 is used to connect the device to an external suction pump and a display, and complete the suction operation. Through the suction mechanism 10, efficient suction of endometrial tissue can be achieved. Moreover, with the visual positioning function of the camera 104, the sampling accuracy is improved, and the probability of misoperation is reduced;
[0036] The cleaning mechanism 20 is arranged on the outer periphery of the suction mechanism 10 and is used to sweep and store objects that cannot be suctioned, facilitating sampling and testing for different objects that cannot be suctioned. The cleaning mechanism 20 can not only effectively remove foreign objects remaining after the suction operation, but also provide a reliable storage and sample storage function, facilitating subsequent experimental analysis and improving the reliability and comprehensiveness of the diagnosis;
[0037] The locking mechanism 30 is arranged outside the cleaning mechanism 20 and is used to control the cleaning range of the cleaning mechanism 20. At the same time, it can store the sampled object, thereby preventing the sampled object from falling off. The locking mechanism 30 provides precise control and sample storage protection, avoiding the risk of sample loss during operation, and at the same time improving the operation convenience and safety of the device.
[0038] In a preferred embodiment of the present invention, the suction mechanism 10 includes a tube body 101. One end of the tube body 101 is fixedly connected with a connection disk 102, and the other end of the tube body 101 is fixedly connected with a drainage disk 103. On the other side of the drainage disk 103, a camera 104 is fixedly connected. Among them, the tube body 101 is used to provide a space for discharging foreign objects, the connection disk 102 is used to connect the tube body 101 to an external suction pump, so that when the suction pump works, foreign objects can be sucked out from the tube body 101. The drainage disk 103 is used to improve the suction effect of the tube body 101. At the same time, under the action of the camera 104, the operator can view the position of the device through B-ultrasound, so as to determine where suction is needed, and then clean the foreign objects.
[0039] In a preferred embodiment of the present invention, the cleaning mechanism 20 includes a sleeve 201. The sleeve 201 is sleeved on the outer periphery of the tube body 101. A connection ring 202 is fixedly connected to the outer periphery of the tube body 101. A plurality of turning plates 203 are rotatably connected to one end of the sleeve 201 away from the connection disk 102. A plurality of turning plates 203 are all in contact with the connection ring 202. A compression spring 204 is fixedly connected inside the turning plate 203. The other end of the compression spring 204 is fixedly connected to a collecting plate 205. The collecting plate 205 is slidably connected to the side of the turning plate 203 away from the connection ring 202. An I-shaped wire reel 206 is rotatably connected to the inner wall of the connection ring 202. A pulling rope 207 is fixedly connected to the outside of the I-shaped wire reel 206. The other end of the pulling rope 207 is fixedly connected to the side of the collecting plate 205 close to the compression spring 204:
[0040] Specifically: By pushing the connecting plate 102, the tube body 101 can drive the connecting ring 202 to move. While it is moving, the flap 203 can be squeezed to open. While it is opening, the compression spring 204 can ensure that the collecting plate 205 is in the extended state. At this time, the non-attractable foreign objects can be cleaned through the rotating device, and at the same time, the foreign objects can be sampled and saved, which is convenient for subsequent corresponding medical measures to be made.
[0041] In a preferred embodiment of the present invention, the locking mechanism 30 can include a first mounting plate 301. The first mounting plate 301 is sleeved on the outer periphery of the tube body 101. The first mounting plate 301 and the pull rope 207 are connected by a connecting rod 302. A second mounting plate 306 is fixedly connected to the outer periphery of the end of the sleeve 201 far from the drainage plate 103. A card slot 307 is formed in the middle of the second mounting plate 306. A return spring 303 is fixedly connected to the inside of the first mounting plate 301. The other end of the return spring 303 is fixedly connected to an L-shaped plate 304. A clamping block 305 is fixedly connected to the outer side of the L-shaped plate 304. The clamping block 305 is in contact with the second mounting plate 306. The clamping block 305 and the second mounting plate 306 are in plug-in fit. Under the action of the first mounting plate 301, the whole locking mechanism 30 can slide on the outer periphery of the tube body 101, and the first mounting plate 301 drives the connecting rod 302 and the connecting ring 202 to move, so that the flap 203 can be squeezed to open the flap 203. At this time, by driving an external suction pump, the foreign objects can be sucked out. At the same time, when the first mounting plate 301 approaches the second mounting plate 306, the second mounting plate 306 will squeeze the clamping block 305, so that the clamping block 305 drives the L-shaped plate 304 to compress the return spring 303. When the clamping block 305 moves to a position parallel to the card slot 307, the clamping block 305 can be ejected into the card slot 307 by the elastic force of the return spring 303, so that the connection between the first mounting plate 301 and the second mounting plate 306 can be completed. By pressing the L-shaped plate 304, the clamping block 305 can be pulled out from the middle of the card slot 307, so that the connection between the first mounting plate 301 and the second mounting plate 306 can be quickly released. At this time, the release and winding of the pull rope 207 can be quickly controlled, the collecting plate 205 can be controlled to pop out for sampling, and can be retracted and stored after sampling, so as to be better for testing.
[0042] In a preferred embodiment of the present invention, a partition is fixedly connected to the inside of the flap 203. The partition is fixedly connected between the compression spring 204 and the collecting plate 205. The partition can limit the collecting plate 205 to prevent the collecting plate 205 from tilting during movement, thereby avoiding the problem that the compression spring 204 is damaged due to the inclined extrusion of the collecting plate 205, and the service life of the compression spring 204 can be improved.
[0043] In a preferred embodiment of the present invention, an arc is provided on one side of the clamping block 305 close to the second mounting plate 306. The arc portion provided on the second mounting plate 306 is in contact with the clamping block 305. Through the provided arc portion, the second mounting plate 306 can squeeze the clamping block 305 when contacting the clamping block 305, so that the clamping block 305 drives the L-shaped plate 304 to compress the return spring 303. By providing the arc, the friction generated when the second mounting plate 306 and the clamping block 305 are squeezed can be reduced, and the service life of the clamping block 305 can be improved.
[0044] In a preferred embodiment of the present invention, a spring groove is provided in the middle of the first mounting plate 301. The spring groove is used to provide a position for spring installation and at the same time provide a position for the parallel sliding of the L-shaped plate 304. Through the spring groove, the return spring 303 can be compressed and reset inside the first mounting plate 301, and at the same time, the moving space of the L-shaped plate 304 can be provided, and the problem of the L-shaped plate 304 tilting during movement can be avoided.
[0045] In a preferred embodiment of the present invention, a handle 308 is fixedly connected to the side of the first mounting plate 301 away from the second mounting plate 306. Anti-slip grooves are provided on the outer side of the handle 308. Through the cooperation of the handle 308 and the anti-slip grooves, the first mounting plate 301 can be rotated more conveniently, thereby improving the efficiency of releasing or winding the pull rope 207.
[0046] In a preferred embodiment of the present invention, a dial is fixedly connected to the side of the L-shaped plate 304 away from the first mounting plate 301. The dial is used to increase the pressing feel. Through the dial, the position where the L-shaped plate 304 can be pressed can be increased, thereby improving the comfort of pressing the L-shaped plate 304.
[0047] The present invention also provides a method for using a B-ultrasound-guided endometrial aspiration device, including the following steps:
[0048] Step 1: By squeezing the sleeve 201 and the first mounting plate 301 forward, the sleeve 201 and the tube body 101 are moved to the position where they are needed. After entering, the tube body 101 is driven to move forward by separately pushing the connecting plate 102. During the forward movement of the tube body 101, the first mounting plate 301 is driven to approach the second mounting plate 306, and at the same time, the drainage plate 103 squeezes the flap 203, so that the flap 203 opens. At the same time, the connecting plate 102 is connected to an external suction pump. At this time, the operator can view the position of the device through B-ultrasound by means of the camera 104, and when suction is required, the external suction pump is started to generate suction between the drainage plate 103 and the connecting plate 102, so as to suck out foreign matters. While the first mounting plate 301 approaches the second mounting plate 306, the second mounting plate 306 squeezes the block 305, thereby driving the L-shaped plate 304 to compress the return spring 303. When the first mounting plate 301 moves to contact the second mounting plate 306 and the block 305 and the slot 307 are in a parallel position, the L-shaped plate 304 is squeezed by the elastic force of the return spring 303, so that the L-shaped plate 304 drives the block 305 to enter the slot 307. At this time, the locking mechanism 30 can be quickly connected and fixed to the sleeve 201, avoiding the problem that when the locking mechanism 30 rotates and sampling and cleaning are not required, the pull rope 207 is released and the collection plate 205 pops out;
[0049] Step 2: By pressing the L-shaped plate 304 to compress the return spring 303 and separating the block 305 from the second mounting plate 306, the first mounting plate 301 and the second mounting plate 306 can be separated at this time. After separation, the first mounting plate 301 is rotated to drive the I-shaped wire reel 206 to rotate, so as to release the pull rope 207. At this time, under the action of the compressed compression spring 204, the collection plate 205 can be popped out. At this time, the collection plate 205 can be rotated by rotating the sleeve 201 to clean and sample foreign matters that cannot be cleaned, so as to better unlock corresponding countermeasures after sampling and analysis.
[0050] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An endometrial aspiration device under B-ultrasound guidance, characterized in that, Comprising: An attracting mechanism (10) for connecting the device to an external suction pump and a display and performing the suction operation; A cleaning mechanism (20) disposed on the outer periphery of the attracting mechanism (10) for sweeping and storing objects that cannot be attracted, facilitating sampling and testing for different objects that cannot be attracted; A locking mechanism (30) disposed outside the cleaning mechanism (20) for controlling the cleaning range of the cleaning mechanism (20) and simultaneously accommodating the sampled objects to prevent the sampled objects from falling off.
2. The endometrial aspiration device under B-ultrasound guidance according to claim 1, characterized in that The attracting mechanism (10) includes a tube body (101), one end of the tube body (101) is fixedly connected to a connection disk (102), the other end of the tube body (101) is fixedly connected to a drainage disk (103), and the other side of the drainage disk (103) is fixedly connected to a camera (104).
3. The endometrial aspiration device under B-ultrasound guidance according to claim 2, characterized in that, The cleaning mechanism (20) includes a sleeve (201) sleeved on the outer periphery of the tube body (101), a connection ring (202) is fixedly connected to the outer periphery of the tube body (101), a plurality of flap plates (203) are rotatably connected to one end of the sleeve (201) away from the connection disk (102), a plurality of the flap plates (203) are all in contact with the connection ring (202), a compression spring (204) is fixedly connected to the inside of the flap plate (203), the other end of the compression spring (204) is fixedly connected to a collection plate (205), the collection plate (205) is slidably connected to the side of the flap plate (203) away from the connection ring (202), an I-shaped wire reel (206) is rotatably connected to the inner wall of the connection ring (202), a pull rope (207) is fixedly connected to the outside of the I-shaped wire reel (206), and the other end of the pull rope (207) is fixedly connected to the side of the collection plate (205) close to the compression spring (204).
4. The endometrial aspiration device under B-ultrasound guidance according to claim 3, characterized in that, The locking mechanism (30) includes a first mounting plate (301) sleeved on the outer periphery of the tube body (101), the first mounting plate (301) and the pull rope (207) are connected by a connecting rod (302), a second mounting plate (306) is fixedly connected to the outer periphery of one end of the sleeve (201) away from the drainage disk (103), a card slot (307) is formed in the middle of the second mounting plate (306), a return spring (303) is fixedly connected to the inside of the first mounting plate (301), the other end of the return spring (303) is fixedly connected to an L-shaped plate (304), a card block (305) is fixedly connected to the outside of the L-shaped plate (304), the card block (305) is in contact with the second mounting plate (306), and the card block (305) and the second mounting plate (306) are in plug-in fit.
5. A B-ultrasound-guided endometrial aspiration device according to claim 3, wherein, A partition is fixedly connected to the inside of the flap plate (203), and the partition is fixedly connected between the compression spring (204) and the collection plate (205).
6. A B-ultrasound-guided endometrial aspiration device according to claim 4, characterized in that, One side of the clamping block (305) close to the second mounting plate (306) is provided with an arc, and the arc portion provided by the second mounting plate (306) and the clamping block (305) is in contact.
7. A B-ultrasound-guided endometrial aspiration device according to claim 4, characterized in that, A spring groove is formed in the middle of the first mounting plate (301). The spring groove is used to provide a position for spring installation and at the same time provide a position for the parallel sliding of the L-shaped plate (304).
8. The endometrial aspiration device under B-ultrasound guidance according to claim 4, characterized in that A handle (308) is fixedly connected to the side of the first mounting plate (301) away from the second mounting plate (306), and anti-slip grooves are provided on the outer side of the handle (308).
9. The endometrial aspiration device under B-ultrasound guidance according to claim 4, characterized in that, A dial is fixedly connected to the side of the L-shaped plate (304) away from the first mounting plate (301), and the dial is used to increase the pressing feel.
10. A method for using an endometrial aspiration device under B-ultrasound guidance, characterized in that, When using a B-ultrasound-guided endometrial aspiration device according to any one of claims 1-9, the following steps are included: Step 1: By pressing the sleeve (201) and the first mounting plate (301) forward, the sleeve (201) and the tube body (101) are moved to the position where they are needed. After entering, the tube body (101) is driven to move forward by separately pushing the connecting disc (102). During the forward movement of the tube body (101), the first mounting plate (301) will be driven to approach the second mounting plate (306). At the same time, the drainage disc (103) presses the flap (203), so that the flap (203) opens. At the same time, the connecting disc (102) is connected to an external suction pump. At this time, the operator can view the position of the device through B-ultrasound by the camera (104). When suction is needed, the external suction pump is started to generate suction between the drainage disc (103) and the connecting disc (102), so as to suck out foreign matters. When the first mounting plate (301) approaches the second mounting plate (306), the second mounting plate (306) presses the clamping block (305), thereby driving the L-shaped plate (304) to compress the return spring (303). When the first mounting plate (301) moves to contact the second mounting plate (306) and the clamping block (305) and the card slot (307) are in a parallel position, the L-shaped plate (304) is pressed by the elastic force of the return spring (303), so that the L-shaped plate (304) drives the clamping block (305) to enter the card slot (307). At this time, the locking mechanism (30) and the sleeve (201) can be quickly connected and fixed, avoiding the problem that when the locking mechanism (30) rotates and foreign matters need not be sampled and cleaned, the pull rope (207) is released and the collection plate (205) pops out; Step 2: By pressing the L-shaped plate (304) to compress the return spring (303) and separating the clamping block (305) from the second mounting plate (306), the first mounting plate (301) and the second mounting plate (306) can be separated at this time. After separation, the first mounting plate (301) is rotated to drive the I-shaped wire reel (206) to rotate, so as to release the pull rope (207). At this time, under the action of the compressed compression spring (204), the collection plate (205) can be popped out. At this time, the collection plate (205) can be rotated by rotating the sleeve (201) to clean and sample foreign matters that cannot be cleaned, so as to better unlock corresponding countermeasures after sampling and analysis.