A sample introduction device for particle detection in medical devices

Abstract

This utility model relates to the technical field of sample introduction devices. It provides a sample introduction device for particle detection in medical devices, including a frame, conveyor rollers, support legs, a commutator, a support cover, a dust collection mechanism, and a cleaning mechanism. Two conveyor rollers are rotatably arranged within the frame, and a conveyor belt is driven between them. The support legs are mounted on the frame, and the commutator is also mounted on the frame. A first motor is mounted on the commutator, with its output end connected to one end of the commutator. The other end of the commutator is fixedly connected to an adjacent conveyor roller. The support cover is fixedly mounted on the frame, and the dust collection mechanism is located on the support cover for cleaning particles adhering to the conveyor belt. The cleaning mechanism is located inside the support cover for cleaning the conveyor belt. This technical solution addresses the problem in the prior art where particle adhesion on the conveyor belt easily affects the detection accuracy during sample introduction.

Description

Technical Field

[0001] This utility model relates to the field of sample introduction device technology, specifically to a sample introduction device for particle detection in medical devices. Background Technology

[0002] The automated particulate contamination detector for medical devices is a specialized automated device used to detect the degree of particulate contamination in medical devices (such as infusion sets, syringes, infusion bags, injections, etc.).

[0003] During the production, storage, and use of medical devices, particulate impurities may be introduced due to issues such as raw material quality, manufacturing processes, and packaging sealing. If these particles enter the human body along with the medication, they may cause adverse consequences such as vascular embolism, granulomas, and allergic reactions, seriously threatening patient safety. Therefore, rigorous testing for particulate contamination in medical devices is a crucial step in ensuring their safety and effectiveness.

[0004] In existing automated particulate contamination detectors for medical devices, material introduction is typically achieved using a small belt conveyor. However, during the sample introduction process using a belt conveyor, particles on the sample surface can easily fall onto the conveyor belt and adhere to it. In subsequent sample introduction processes, these particles can easily adhere to the sample surface, affecting the detection accuracy. Utility Model Content

[0005] To overcome the above-mentioned defects, this utility model provides a sample introduction device for particle detection in medical devices, which solves the technical problem that the detection accuracy is easily affected by the adhesion of particles on the conveyor belt during the sample introduction process in the prior art.

[0006] According to one aspect, at least one embodiment of the present invention provides a sample introduction device for particle detection in medical devices, including a frame, and further including conveying rollers, support legs, a commutator, a support cover, a dust collection mechanism, and a cleaning mechanism. Two conveying rollers are rotatably arranged inside the frame, and a conveyor belt is driven between the two conveying rollers. The support legs are mounted on the frame, and the commutator is mounted on the frame. A first motor is mounted on the commutator, the output end of the first motor is connected to one end of the commutator, and the other end of the commutator is fixedly connected to the adjacent conveying roller. The support cover is fixedly arranged on the frame, and the dust collection mechanism is arranged on the support cover for cleaning particles attached to the conveyor belt. The cleaning mechanism is arranged inside the support cover for cleaning the conveyor belt.

[0007] Preferably, the dust collection mechanism includes a filter box and a fan. The filter box is installed on one side of the support cover, and a filter plate is fixedly installed inside the filter box. A dust collection pipe is provided between the inner top wall of the filter box and the support cover. The fan is installed on one side of the filter box, and the input end of the fan is connected to the filter box.

[0008] Furthermore, the cleaning mechanism includes a support block, a cleaning roller, a reciprocating movement mechanism, and a rotating mechanism. The support block is slidably disposed within the support cover and has two support openings. The cleaning roller is rotatably disposed within the support openings. Cleaning bristles are evenly distributed on the sidewalls of the cleaning roller and contact the conveyor belt. The reciprocating movement mechanism is disposed between the support cover and the support block and is used to drive the support block to reciprocate within the support cover. The rotating mechanism is disposed on the support block and is used to drive the cleaning roller to rotate.

[0009] Furthermore, the reciprocating moving mechanism includes a moving groove, an adjusting plate, an adjusting rod, and a second motor. The moving groove is formed on the side wall of the support block. The adjusting plate is rotatably mounted on the side wall of the support cover and extends into the moving groove. A rotating shaft is rotatably mounted at the eccentric position of the adjusting plate. The adjusting rod is fixedly mounted on the rotating shaft, and the end of the adjusting rod away from the rotating shaft is hinged to the side wall of the moving groove. The second motor is mounted on the support cover, and the output end of the second motor is fixedly connected to the adjusting plate.

[0010] Furthermore, the rotating mechanism includes a first cavity, a second gear, and a driving mechanism. The first cavity is formed within the support block. A first gear is rotatably disposed within the first cavity on one side of the cleaning roller. A connecting rod is fixedly disposed between the first gear and the adjacent cleaning roller. The second gear is rotatably disposed within the first cavity and meshes with the first gear. The driving mechanism is disposed on the support block and is used to drive the second gear to rotate.

[0011] Based on the above scheme, the driving mechanism includes a driving port, a driving prism, and a third motor. The driving port is opened on the support block. The driving prism is rotatably disposed inside the support cover. The driving prism passes through the driving port and the second gear. The driving prism is slidably connected to the second gear. The third motor is mounted on the support cover. The output end of the third motor is fixedly connected to the driving prism.

[0012] Based on the above scheme, sealing rings are fixedly provided at both ends of the inner wall of the drive port, and the sealing rings are in contact with the drive prism.

[0013] Based on the above scheme, the surface of the conveyor belt is provided with anti-slip texture.

[0014] The beneficial effects of the embodiments of this utility model are as follows:

[0015] 1. In this utility model, by setting up a dust collection mechanism, the particles on the surface of the conveyor belt can be sucked into the filter box by the operation of the fan, thereby facilitating the cleaning of particles on the surface of the conveyor belt;

[0016] 2. In this utility model, by setting up a reciprocating moving mechanism, the operation of the second motor can drive the adjusting plate to rotate, and at the same time, the rotating shaft and adjusting rod push the support block and cleaning roller to reciprocate, thereby facilitating the cleaning of the conveyor belt by the cleaning brush on the cleaning roller, thereby further improving the cleaning effect of particles;

[0017] 3. In this utility model, by setting up a rotating mechanism, the operation of the third motor can drive the driving prism to rotate. At the same time, the sliding engagement between the driving prism and the second gear drives the second gear to rotate. Furthermore, the meshing between the second gear and the first gear drives the first gear and the cleaning roller to rotate, thereby facilitating further improvement in the cleaning effect on particles. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a sample introduction device for particle detection in a medical device according to one embodiment of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of a sample introduction device for particle detection in a medical device from another perspective in one embodiment;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure at the support cover in the embodiment;

[0022] Figure 4 for Figure 1 A cross-sectional structural schematic diagram of the support cover in the embodiment;

[0023] Figure 5 for Figure 1A cross-sectional structural schematic diagram of the rotating mechanism in the embodiment;

[0024] Figure 6 for Figure 1 The schematic diagram is a cross-sectional view of the reciprocating moving mechanism in the embodiment.

[0025] In the diagram: 1. Frame; 2. Conveyor roller; 3. Conveyor belt; 4. Support leg; 5. Reversing device; 6. First motor; 7. Support cover; 8. Support block; 9. Cleaning roller; 10. Moving trough; 11. Adjusting disc; 12. Rotating shaft; 13. Adjusting rod; 14. Second motor; 15. First cavity; 16. First gear; 17. Second gear; 18. Drive port; 19. Drive prism; 20. Third motor; 21. Filter box; 22. Fan. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0027] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0028] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] like Figures 1-6 As shown, this invention illustrates a sample introduction device for particle detection in a medical device according to an embodiment of the present invention. The device includes a frame 1, a conveyor roller 2, a support leg 4, a commutator 5, a support cover 7, a dust collection mechanism, and a cleaning mechanism. Two conveyor rollers 2 are rotatably arranged inside the frame 1, and a conveyor belt 3 is driven between the two conveyor rollers 2. The support leg 4 is mounted on the frame 1. The commutator 5 is mounted on the frame 1, and a first motor 6 is mounted on the commutator 5. The output end of the first motor 6 is connected to one end of the commutator 5, and the other end of the commutator 5 is fixedly connected to the adjacent conveyor roller 2. The support cover 7 is fixedly arranged on the frame 1. The dust collection mechanism is arranged on the support cover 7 for cleaning particles attached to the conveyor belt 3. The cleaning mechanism is arranged inside the support cover 7 for cleaning the conveyor belt 3. The surface of the conveyor belt 3 is provided with anti-slip textures.

[0033] Reference Figures 1-4 The dust collection mechanism includes a filter box 21 and a fan 22. The filter box 21 is installed on one side of the support cover 7. A filter plate is fixedly installed inside the filter box 21. A dust collection pipe is installed between the inner top wall of the filter box 21 and the support cover 7. The fan 22 is installed on one side of the filter box 21. The input end of the fan 22 is connected to the filter box 21. A vent is opened on the side wall of the support cover 7. A filter screen is installed in the vent. Specifically, the operation of the fan 22 can draw the particles on the surface of the conveyor belt 3 into the filter box 21, thereby facilitating the cleaning of the particles on the surface of the conveyor belt 3.

[0034] Reference Figures 3-6 The cleaning mechanism includes a support block 8, a cleaning roller 9, a reciprocating movement mechanism, and a rotating mechanism. The support block 8 is slidably disposed within a support cover 7 and has two support openings. The cleaning roller 9 is rotatably disposed within the support openings, and its sidewalls are evenly covered with cleaning bristles that contact the conveyor belt 3. The reciprocating movement mechanism is disposed between the support cover 7 and the support block 8 and is used to drive the support block 8 to reciprocate within the support cover 7. The rotating mechanism is disposed on the support block 8 and is used to drive the cleaning roller 9 to rotate. The reciprocating movement mechanism includes a moving groove 10, an adjusting disc 11, an adjusting rod 13, and a second motor 14. The moving groove 10 is located on the sidewall of the support block 8, and the adjusting disc 11 is rotatably disposed within the supporting openings. The adjusting plate 11 is placed on the side wall of the support cover 7 and extends into the moving groove 10. The eccentric position of the adjusting plate 11 is rotatably provided with a rotating shaft 12. The adjusting rod 13 is fixedly set on the rotating shaft 12. The end of the adjusting rod 13 away from the rotating shaft 12 is hinged to the side wall of the moving groove 10. The second motor 14 is installed on the support cover 7. The output end of the second motor 14 is fixedly connected to the adjusting plate 11. Specifically, the operation of the second motor 14 can drive the adjusting plate 11 to rotate. At the same time, the rotating shaft 12 and the adjusting rod 13 push the support block 8 and the cleaning roller 9 to move back and forth, so as to facilitate the cleaning of the conveyor belt 3 by the cleaning bristles on the cleaning roller 9, thereby further improving the cleaning effect of particles.

[0035] Reference Figures 3-5 The rotating mechanism includes a first cavity 15, a second gear 17, and a drive mechanism. The first cavity 15 is located within the support block 8. A first gear 16 is rotatably mounted within the first cavity 15 on one side of the cleaning roller 9. A connecting rod is fixedly mounted between the first gear 16 and the adjacent cleaning roller 9. The second gear 17 is rotatably mounted within the first cavity 15 and meshes with the first gear 16. The drive mechanism is mounted on the support block 8 and is used to drive the second gear 17 to rotate. The drive mechanism includes a drive port 18, a drive prism 19, and a third motor 20. The drive port 18 is located on the support block 8, and the drive prism 19 is rotatably mounted within the support cover 7. The drive prism 19 penetrates the drive... The drive port 18 and the second gear 17 are slidably connected. The drive prism 19 is slidably connected to the second gear 17. The third motor 20 is mounted on the support cover 7. The output end of the third motor 20 is fixedly connected to the drive prism 19. Both ends of the inner wall of the drive port 18 are fixedly provided with sealing rings, which are in contact with the drive prism 19. Specifically, the operation of the third motor 20 can drive the drive prism 19 to rotate. At the same time, the sliding engagement between the drive prism 19 and the second gear 17 drives the second gear 17 to rotate. In turn, the meshing between the second gear 17 and the first gear 16 drives the first gear 16 and the cleaning roller 9 to rotate, thereby further improving the cleaning effect on particles.

[0036] In this embodiment, during use, after the operator transports the sample via the conveyor belt 3, the operator continues to drive the conveyor belt 3 to move. Simultaneously, the operator controls the fan 22 to operate, which draws particles from the surface of the conveyor belt 3 into the filter box 21, facilitating the cleaning of particles on the surface of the conveyor belt 3. At the same time, the operator controls the second motor 14 to operate, which drives the adjusting plate 11 to rotate. Simultaneously, the rotating shaft 12 and adjusting rod 13 push the support block 8 and cleaning roller 9 to reciprocate, facilitating the cleaning of the conveyor belt 3 by the cleaning bristles on the cleaning roller 9, thereby further improving the particle cleaning effect. At the same time, the operator controls the third motor 20 to operate, which drives the drive prism 19 to rotate. Simultaneously, the sliding engagement between the drive prism 19 and the second gear 17 drives the second gear 17 to rotate, and then the meshing of the second gear 17 with the first gear 16 drives the first gear 16 and the cleaning roller 9 to rotate, thereby further improving the particle cleaning effect.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sample introduction device for particle detection in medical devices, comprising a frame (1), characterized in that, Also includes: Conveying rollers (2), two conveying rollers (2) are rotatably arranged inside the frame (1), and a conveyor belt (3) is provided between the two conveying rollers (2). Support leg (4), the support leg (4) is mounted on the frame (1); A commutator (5) is mounted on the frame (1). A first motor (6) is mounted on the commutator (5). The output end of the first motor (6) is connected to one end of the commutator (5). The other end of the commutator (5) is fixedly connected to the adjacent conveying roller (2). Support cover (7), the support cover (7) is fixedly mounted on the frame (1); A dust collection mechanism is provided on the support cover (7) for cleaning particles attached to the conveyor belt (3); A cleaning mechanism is provided inside the support cover (7) for cleaning the conveyor belt (3).

2. The sample introduction device for particle detection in medical devices according to claim 1, characterized in that, The dust collection mechanism includes: A filter box (21) is installed on one side of the support cover (7). A filter plate is fixedly installed inside the filter box (21). A dust suction pipe is provided between the inner top wall of the filter box (21) and the support cover (7). A fan (22) is installed on one side of the filter box (21), and the input end of the fan (22) is connected to the filter box (21).

3. The sample introduction device for particle detection in medical devices according to claim 2, characterized in that, The cleaning facility includes: Support block (8), which is slidably disposed inside the support cover (7), and has two support openings; Cleaning roller (9), the cleaning roller (9) is rotatably disposed in the support opening, the side wall of the cleaning roller (9) is evenly distributed with cleaning bristles, and the cleaning bristles are in contact with the conveyor belt (3); A reciprocating movement mechanism is disposed between the support cover (7) and the support block (8) for driving the support block (8) to reciprocate within the support cover (7); A rotating mechanism is provided on the support block (8) for driving the cleaning roller (9) to rotate.

4. The sample introduction device for particle detection in medical devices according to claim 3, characterized in that, The reciprocating movement mechanism includes: The movable groove (10) is formed on the side wall of the support block (8); Adjustment disc (11), the adjustment disc (11) is rotatably mounted on the side wall of the support cover (7), the adjustment disc (11) extends into the moving groove (10), and the eccentric position of the adjustment disc (11) is rotatably mounted with a rotating shaft (12). Adjusting rod (13), the adjusting rod (13) is fixedly mounted on the rotating shaft (12), and one end of the adjusting rod (13) away from the rotating shaft (12) is hinged to the side wall of the moving groove (10); The second motor (14) is mounted on the support cover (7), and the output end of the second motor (14) is fixedly connected to the adjustment plate (11).

5. The sample introduction device for particle detection in medical devices according to claim 4, characterized in that, The rotating mechanism includes: The first cavity (15) is opened in the support block (8). A first gear (16) is rotatably arranged in the first cavity (15) on one side of the cleaning roller (9). A connecting rod is fixedly arranged between the first gear (16) and the adjacent cleaning roller (9). The second gear (17) is rotatably disposed in the first cavity (15) and meshes with the first gear (16); A drive mechanism is provided on the support block (8) for driving the second gear (17) to rotate.

6. The sample introduction device for particle detection in medical devices according to claim 5, characterized in that, The drive mechanism includes: A drive port (18) is provided on the support block (8); A driving prism (19) is rotatably disposed inside the support cover (7). The driving prism (19) passes through the driving port (18) and the second gear (17). The driving prism (19) is slidably connected to the second gear (17). The third motor (20) is mounted on the support cover (7), and the output end of the third motor (20) is fixedly connected to the drive prism (19).

7. The sample introduction device for particle detection in medical devices according to claim 6, characterized in that, Both ends of the inner wall of the drive port (18) are fixedly provided with sealing rings, and the sealing rings are in contact with the drive prism (19).

8. The sample introduction device for particle detection in medical devices according to claim 7, characterized in that, The surface of the conveyor belt (3) is provided with anti-slip texture.

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