Cleaning device and medical equipment
By designing a cleaning tank and rinsing channel for the cleaning device, and using liquid to rinse the walls on both sides of the reagent needle, the problem of convenient and efficient cleaning in the existing technology is solved, achieving a high-efficiency and low-cost reagent needle cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RAYTO LIFE & ANALYTICAL SCI CO LTD
- Filing Date
- 2025-02-11
- Publication Date
- 2026-05-01
AI Technical Summary
Existing reagent needle cleaning methods cannot simultaneously guarantee convenience, efficiency, and cleaning effect. Liquid pumps increase costs, immersion cleaning is time-consuming, and fountain cleaning cannot avoid air bubbles and requires high water pressure.
Design a cleaning device including a cleaning tank and a rinsing channel. The reagent needle is located on both sides of the inner circumference of the cleaning tank. Liquid rinses the two side walls of the reagent needle through the rinsing port, and efficient cleaning is achieved by using a rinsing channel and a rinsing port.
It enables convenient and efficient reagent needle cleaning, reduces costs and improves cleaning efficiency, and avoids the phenomenon of bubble spraying.
Smart Images
Figure CN224181591U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to medical equipment technology, and in particular to a cleaning device and medical equipment. Background Technology
[0002] Currently, there are three types of reagent needle cleaning structures on the market: 1. After cleaning, the waste liquid remaining on the outer wall of the reagent needle is removed by using a negative pressure provided by a liquid pump. However, this requires an additional liquid pump to provide negative pressure, which increases the complexity of control and space costs. 2. The reagent needle needs to be submerged in the cleaning tank and immersed in the entire deionized water surface for cleaning. When lifting the needle, it is lifted slowly to reduce liquid residue. Since the reagent needle needs to be submerged below the deionized water surface for rinsing, and lifting the needle requires slow lifting, it greatly increases the cleaning time and reduces cleaning efficiency. 3. Fountain-style cleaning, which uses water to flush the reagent needle through an upward-sloping outlet. This method cannot avoid liquid spraying caused by air bubbles in the pipeline, and the cleaning process requires high pressure on the outer wall due to the influence of water pressure on the inner wall. Therefore, the related technologies cannot simultaneously guarantee convenience, efficiency, and cleaning effect for reagent needle cleaning. Utility Model Content
[0003] The main purpose of this invention is to provide a cleaning device and medical equipment that is convenient to use and has high cleaning efficiency.
[0004] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:
[0005] A cleaning device for cleaning reagent needles, comprising:
[0006] A cleaning tank defines a cleaning chamber and a rinsing channel. The inner periphery of the cleaning tank includes a first surface and a second surface arranged opposite to each other along a first direction. The rinsing channel has a rinsing port communicating with the cleaning chamber. A reagent needle is adapted to extend into the cleaning chamber and is located between the first surface and the second surface. The first outer peripheral wall of the reagent needle, along the first direction and close to the rinsing port, is adapted to face the rinsing port. The second outer peripheral wall of the reagent needle, along the first direction and away from the rinsing port, is adapted to face the second surface. This is so that after liquid is introduced into the rinsing channel, a portion of the liquid discharged from the rinsing port can reach the first outer peripheral wall, and another portion can reach the second outer peripheral wall after impacting the second surface.
[0007] In some embodiments, the cleaning tank includes a housing and a boss. The housing defines a cleaning chamber and has a first surface and a second surface. The two ends of the boss are respectively connected to the first surface and the second surface. The boss has a first drainage channel and a first drainage port at the upper end of the first drainage channel. The first drainage port is adapted to open towards one end of the reagent needle.
[0008] In some embodiments, the boss includes a third surface, a fourth surface, and a fifth surface. The first drain outlet is disposed on the third surface. Along a direction perpendicular to the direction of gravity and the first direction, the fourth surface and the fifth surface are respectively connected to the two sides of the third surface. The fourth surface extends downward from one end connected to the third surface to the other end away from the third surface. The fifth surface extends downward from one end connected to the third surface to the other end away from the third surface.
[0009] In some embodiments, the first drain outlet is located at the center of the third surface along a direction perpendicular to the direction of gravity and the first direction, and the fourth and fifth surfaces are symmetrically arranged on both sides of the third surface.
[0010] In some embodiments, the housing further defines a second drainage channel, the upper end of which has a second drainage port that communicates with the cleaning chamber and is located on the lower side of the boss.
[0011] In some embodiments, the cleaning apparatus further includes a waste liquid collection component connected to a first drain channel and a second drain channel, so that the waste liquid collection component can collect liquid flowing through the first drain channel and the second drain channel.
[0012] In some embodiments, the cleaning apparatus further includes a liquid supply assembly that communicates with a rinsing channel and is adapted to introduce liquid into the rinsing channel.
[0013] In some embodiments, along the first direction, the distance between the center of the first drain outlet and the second surface is less than the distance between the center of the first drain outlet and the first surface.
[0014] A second aspect of this utility model also provides a medical device, including the cleaning apparatus of any of the above embodiments.
[0015] In some embodiments, the medical device further includes a reagent needle and a fixing device. The area of the second outer peripheral wall that can receive the liquid discharged from the rinsing port is a cleaning area. The minimum distance between the cleaning area and the second surface along the first direction is L. The fixing device can fix the reagent needle and allow the reagent needle to extend into the cleaning chamber and be located between the first surface and the second surface, and satisfy: 0.5mm≤L≤1.5mm.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] The cleaning device of this utility model includes a cleaning tank, which defines a cleaning chamber and a rinsing channel. The inner periphery of the cleaning tank includes a first surface and a second surface arranged opposite to each other along a first direction. The rinsing channel has a rinsing port communicating with the cleaning chamber. A reagent needle is adapted to extend into the cleaning chamber and is located between the first surface and the second surface. The first outer peripheral wall of the reagent needle, which is close to the rinsing port along the first direction, is adapted to face the rinsing port. The second outer peripheral wall of the reagent needle, which is away from the rinsing port along the first direction, is adapted to face the second surface. This is so that after liquid is introduced into the rinsing channel, part of the liquid discharged from the rinsing port can reach the first outer peripheral wall, and another part can reach the second outer peripheral wall after impacting the second surface. Related technologies involve using a pump to remove residual liquid from the outer wall of the reagent needle, which is costly. Alternatively, immersion cleaning involves submerging the reagent needle in a water tank, requiring slow lifting to minimize liquid residue and resulting in low cleaning efficiency. Fountain-style cleaning can be used, but this method cannot avoid liquid spraying due to air bubbles in the tubing and requires high water pressure. In contrast, the present invention achieves cleaning of the outer peripheral walls of the reagent needle along both sides of the first direction using only a single rinsing channel and a single rinsing port. Therefore, the cleaning device of this invention is convenient to use and highly efficient. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0019] Figure 1 This is a three-dimensional schematic diagram of the first side of the cleaning tank provided in the first embodiment of the present utility model;
[0020] Figure 2 This is a perspective view of the second side of the cleaning pool provided in the first embodiment of the present invention; wherein, the partially obscured structure is shown in dashed lines;
[0021] Figure 3 This is a front view schematic diagram of the cleaning tank provided in the first embodiment of the present utility model; wherein, the connection between the cleaning tank and the waste liquid collection component and the liquid supply component is shown by dashed lines;
[0022] Figure 4 This is a top view of the cleaning tank provided in the first embodiment of the present invention;
[0023] Figure 5 for Figure 4 A cross-sectional view of section AA.
[0024] Explanation of icon numbers:
[0025] Cleaning device 100;
[0026] Cleaning tank 110; cleaning chamber 111; rinsing channel 112; rinsing port 1121; first surface 113; second surface 114; outer shell 115; boss 116; first drain channel 1161; first drain port 1162; third surface 1163; fourth surface 1164; fifth surface 1165; second drain channel 117; second drain port 1171;
[0027] Waste liquid collection assembly 120;
[0028] Liquid supply assembly 130;
[0029] Reagent needle 200; First peripheral wall 210; Second peripheral wall 220;
[0030] First direction X;
[0031] The direction of gravity is G.
[0032] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0035] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or," "and / or," or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where A and B are simultaneously satisfied. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0036] Currently, there are three types of reagent needle cleaning structures on the market: The first type uses a negative pressure provided by a pump to remove residual waste liquid from the outer wall of the reagent needle after cleaning; the second type requires the reagent needle to be submerged in the cleaning tank, completely submerged in deionized water, and then slowly lifted out of the water to reduce residue buildup; the third type is a fountain-style cleaning, where water flows from an upward-sloping outlet to rinse the reagent needle. This method cannot avoid spraying liquid when there are air bubbles in the tubing, and the internal water pressure requires high pressure on the external water pressure. Therefore, these technologies cannot simultaneously guarantee convenience, efficiency, and cleaning effectiveness for reagent needle cleaning.
[0037] In view of this, see Figures 1-5 In this embodiment of the present invention, a cleaning device 100 is provided for cleaning a reagent needle 200, which can be any type of medical reagent needle 200.
[0038] For details, see Figures 1-3The cleaning device 100 includes a cleaning tank 110, which defines a cleaning chamber 111 and a rinsing channel 112. The cleaning tank 110 can have any suitable shape and structure. The cleaning chamber 111 is the internal cavity structure of the cleaning tank 110 itself. To facilitate the insertion of the reagent needle 200, the cleaning tank 110 can have an opening on one side, and this opening connects to the cleaning chamber 111. The rinsing channel 112 is a channel structure provided on the wall structure of the cleaning tank 110 itself. The inner periphery of the cleaning tank 110 includes a first surface 113 and a second surface 114 arranged opposite to each other along a first direction X. The first surface 113 and the second surface 114 can be any lateral wall surface, and the first surface 113 and the second surface 114 located on the inner periphery define the cleaning chamber 111. In order to achieve a cleaning effect on the reagent needle 200, the rinsing channel 112 has a rinsing port 1121 that communicates with the cleaning chamber 111. The reagent needle 200 is adapted to extend into the cleaning chamber 111 and be located between the first surface 113 and the second surface 114. The first outer peripheral wall 210 of the reagent needle 200 along the first direction X, which is close to the rinsing port 1121, is adapted to face the rinsing port 1121. The second outer peripheral wall 220 of the reagent needle 200 along the first direction X, which is away from the rinsing port 1121, is adapted to face the second surface 114. This is so that after the rinsing channel 112 is filled with liquid, part of the liquid discharged from the rinsing port 1121 can reach the first outer peripheral wall 210, and another part can reach the second outer peripheral wall 220 after impacting the second surface 114. The reagent needle 200 has two outer peripheral walls 210 and 220, which are two parts of its outer periphery, facing the first surface 113 and the second surface 114 respectively. Depending on the cleaning requirements, the first outer peripheral wall 210 and the second outer peripheral wall 220 suitable for cleaning can both be a portion of the outer periphery in the height direction of the reagent needle 200 (e.g., the outer periphery of the end where the needle tip is located in a medical setting), or they can be the entire outer periphery of the reagent needle 200. Furthermore, the cleaning liquid can be any suitable type of liquid, such as water or a specific cleaning solution. Based on the above-mentioned settings, when the reagent needle 200 needs to be cleaned, the user can manually or automatically insert at least part of the reagent needle 200 into the cleaning chamber 111. After that, liquid can be introduced into the rinsing channel 112. The liquid in the rinsing channel 112 can be sprayed out from the rinsing port 1121. Part of the sprayed liquid directly rinses the first outer peripheral wall 210 of the reagent needle 200, and another part of the liquid passes through both sides of the reagent needle 200 and reaches the second surface 114. After hitting the second surface 114, this part of the liquid bounces back to the second outer peripheral wall 220 located on the other side of the reagent needle 200, thereby achieving a cleaning effect on both outer peripheral walls of the reagent needle 200 along the first direction X.
[0039] As can be seen, the cleaning device 100 of this utility model includes a cleaning tank 110, which defines a cleaning chamber 111 and a rinsing channel 112. The inner periphery of the cleaning tank 110 includes a first surface 113 and a second surface 114 arranged opposite to each other along a first direction X. The rinsing channel 112 has a rinsing port 1121 communicating with the cleaning chamber 111. A reagent needle 200 is adapted to extend into the cleaning chamber 111 and is located between the first surface 113 and the second surface 114. The first outer peripheral wall 210 of the reagent needle 200 along the first direction X, close to the rinsing port 1121, is adapted to face the rinsing port 1121. The second outer peripheral wall 220 of the reagent needle 200 along the first direction X, away from the rinsing port 1121, is adapted to face the second surface 114. This is so that after liquid is introduced into the rinsing channel 112, a portion of the liquid discharged from the rinsing port 1121 can reach the first outer peripheral wall 210, and another portion can reach the second outer peripheral wall 220 after impacting the second surface 114. In related technologies, waste liquid remaining on the outer wall of the reagent needle 200 is removed by a pump, which is costly. Alternatively, immersion cleaning is performed by submerging the reagent needle 200 in a water tank, which requires slowly raising the needle to reduce liquid residue and has low cleaning efficiency. Fountain-style cleaning is also used, but this method cannot avoid liquid spraying when air bubbles are present in the pipeline and requires high water pressure. Compared to these methods, the present invention achieves cleaning of the outer peripheral walls of the reagent needle 200 along both sides of the first direction X using only a single rinsing channel 112 and a rinsing port 1121. Therefore, the cleaning device 100 of this invention is convenient to use and has high cleaning efficiency.
[0040] For the specific structure of the cleaning tank 110, see [link to relevant documentation]. Figures 2-4In some embodiments, the cleaning tank 110 includes a housing 115 and a boss 116. The housing 115 defines a cleaning chamber 111, and the housing 115 has a first surface 113 and a second surface 114. The two ends of the boss 116 are respectively connected to the first surface 113 and the second surface 114. It can be understood that the housing 115 is the main structure of the cleaning tank 110, while the boss 116 is a connecting structure located in the cleaning chamber 111. The boss 116 and the housing 115 can be a non-detachable integral connection or a detachable connection. In order to achieve the drainage effect, the boss 116 has a first drainage channel 1161, and the upper end of the first drainage channel 1161 has a first drainage port 1162, which is adapted to open towards the end facing the reagent needle 200. Through the first drain port 1162 described above, waste liquid used for cleaning the reagent needle 200 can be discharged through the first drain port 1162 (the discharge function can be to drain the liquid away from the cleaning device 100, or to store the liquid in a specific part of the cleaning device 100). Furthermore, in some usage scenarios, in order to clean the inner circumference of the reagent needle 200 (i.e., the inside of the syringe of the reagent needle 200), it is necessary to introduce another liquid along the length of the reagent needle 200, so that the liquid can be introduced from one end of the reagent needle 200 (the introduction operation can be performed by the cleaning device 100, or by other equipment or manually), and exited from the other end. Since the first drain port 1162 is directly opposite the opening on one side of the reagent needle 200, the liquid exited from the reagent needle 200 can be discharged from the first drain port 1162. Therefore, the first drain port 1162 can be used to discharge both the liquid used for cleaning the outer circumference of the reagent needle 200 and the liquid used for cleaning the inner circumference of the reagent needle 200. Depending on the requirements, the cross-sectional shape of the various channels and openings described in this utility model can be any suitable shape. Each embodiment of this utility model is illustrated with an embodiment in which the cross-sectional shape of the various channels and openings is circular.
[0041] Furthermore, to improve the drainage effect of the boss 116, see [link to relevant documentation]. Figure 2 or Figure 4In some embodiments, the boss 116 includes a third surface 1163, a fourth surface 1164, and a fifth surface 1165. A first drain port 1162 is located on the third surface 1163. Along a direction perpendicular to the direction of gravity G and the first direction X, the fourth surface 1164 and the fifth surface 1165 are respectively connected to both sides of the third surface 1163. The fourth surface 1164 extends downwards from one end connected to the third surface 1163, and the fifth surface 1165 extends downwards from one end connected to the third surface 1163. It is understood that the fourth surface 1164 and the fifth surface 1165 are inclined structures located on both sides of the third surface 1163, with the inclination direction downwards. This arrangement can guide the liquid on the third surface 1163 to the lower side of the boss 116, thus playing an auxiliary role in draining liquid and preventing liquid accumulation on the third surface 1163.
[0042] To achieve better drainage, in some embodiments, the first drain port 1162 can be located at the center of the third surface 1163 along a direction perpendicular to the direction of gravity G and the first direction X. That is, along the aforementioned direction, the minimum distance between the center of the first drain port 1162 and the fourth surface 1164, and the minimum distance between the center of the first drain port 1162 and the fifth surface 1165, can be equal. Furthermore, the fourth surface 1164 and the fifth surface 1165, extending obliquely downwards, can be symmetrically arranged on both sides of the third surface 1163. That is, when viewed along the first direction X, the cross-sectional shape of the boss 116 can be an isosceles trapezoid. These various arrangements allow the liquid around the first drain port 1162 to flow more evenly and smoothly towards the first drain port 1162, the fourth surface 1164, or the fifth surface 1165, reducing the likelihood of liquid accumulation.
[0043] Corresponding to the aforementioned boss 116, in some embodiments, other openings for draining liquid to the outside or spaces for storing liquid can be provided on the underside of the boss 116. Specifically, see... Figures 1-5In some embodiments, the housing 115 further defines a second drainage channel 117, the upper end of which has a second drainage port 1171, which communicates with the cleaning chamber 111 and is located on the lower side of the boss 116. Specifically, the second drain port 1171 can be located on the inner bottom surface of the housing 115, and the second drain channel 117 extends downward to the outside of the cleaning device 100 (one end of the second drain channel 117 connected to the outside can be directly connected to the external environment, or one end of the second drain channel 117 connected to the outside can be used to connect to other external devices, instead of directly connecting to the external environment). This inner bottom surface defines the bottom of the cleaning chamber 111, and when viewed vertically, the pattern formed by the outer periphery of the first drain channel 1161 is located within the pattern formed by the outer periphery of the second drain port 1171 (specifically, the center of the cross-sectional pattern of the first drain channel 1161 coincides with the center of the pattern formed by the outer periphery of the second drain port 1171, while in other embodiments, the two can at least partially overlap or be spaced apart), thereby enabling the liquid discharged from the first drain channel 1161 to the lower part of the cleaning chamber 111 (i.e., the part of the cleaning chamber 111 located below the boss 116) to be more smoothly introduced into the second drain port 1171. To achieve smoother drainage, in some embodiments, when viewed vertically, the center of the pattern surrounding the second drain port 1171 can be located at the center of the inner bottom surface of the housing 115.
[0044] Furthermore, for easier collection of waste liquid, see [link to relevant documentation]. Figure 3 In some embodiments, the cleaning device 100 further includes a waste liquid collection assembly 120, which connects to a first drain channel 1161 and a second drain channel 117, so that the waste liquid collection assembly 120 can collect the liquid flowing through the first drain channel 1161 and the second drain channel 117. According to the above requirements, the waste liquid collection assembly 120 may specifically include a container for storing liquid, an external pipe connecting to the second drain channel 117 (the material of the external pipe may be corrosion-resistant), etc.
[0045] Additionally, to make liquid supply more convenient and automated, see [link to relevant documentation]. Figure 3 In some embodiments, the cleaning device 100 further includes a liquid supply assembly 130, which is connected to the rinsing channel 112 and adapted to supply liquid to the rinsing channel 112. According to the above requirements, the liquid supply assembly 130 may specifically include a water pump, a water supply pipe connected to the rinsing channel 112, and any suitable type of valve connecting the water pump and the water supply pipe.
[0046] See Figure 4In some embodiments, along the first direction X, the distance between the center of the first drain port 1162 and the second surface 114 is less than the distance between the center of the first drain port 1162 and the first surface 113. With the above configuration, during the cleaning process of the reagent needle 200, the center of the reagent needle 200 can be aligned (or substantially aligned) with the center of the first drain port 1162. Subsequently, because the distance between the second outer peripheral wall 220 of the reagent needle 200 and the second surface 114 is relatively short, the liquid reaching the side where the second surface 114 is located can simultaneously adhere to both the second outer peripheral wall 220 and the second surface 114, and the liquid slides vertically. This configuration can prevent the phenomenon where the liquid only reaches and adheres to the second surface 114 without rebounding to the second outer peripheral wall 220, thus improving the cleaning effect.
[0047] A second aspect of this utility model also provides a medical device, including the cleaning device 100 described in any of the above embodiments. This medical device can be any suitable type of medical device, such as a biochemical analyzer. Depending on the requirements, the cleaning device 100 can be fixedly connected to the medical device body (i.e., the device body used to achieve a medical effect) or can be separately disposed from the medical device body.
[0048] In some embodiments, the medical device further includes a reagent needle 200 and a fixing device. Depending on the requirements, the fixing device can be any type of device capable of fixing the position of the reagent needle 200. In some embodiments, the area of the second outer peripheral wall 220 that can receive liquid discharged from the flushing port 1121 is a cleaning area. This cleaning area can specifically be the end position of the reagent needle 200 that needs to be cleaned. The minimum distance between the cleaning area and the second surface 114 along the first direction X is L. The fixing device can fixally connect the reagent needle 200 (at this time, the relative position of the reagent needle 200 and the cleaning device 100 is fixed, and the reagent needle 200 and the fixing device are detachably connected), and allow the reagent needle 200 to extend into the cleaning chamber 111 and be located between the first surface 113 and the second surface 114, satisfying: 0.5mm ≤ L ≤ 1.5mm. For example, L can be any one of 0.5mm, 0.8mm, 1mm, 1.2mm, and 1.5mm. It is understood that the above-mentioned setting allows the distance between the reagent needle 200 and the second surface 114 to be small enough, and the effect is the same as that in the previous embodiment, where the distance between the center of the first drain port 1162 and the second surface 114 is smaller than the distance between the center of the first drain port 1162 and the first surface 113. That is, it can also promote the liquid to adhere to the second outer peripheral wall 220 and the second surface 114 at the same time, and the liquid slides down in the vertical direction to improve the cleaning effect.
[0049] Thanks to the improvements made to the cleaning device 100 in the above embodiments, the medical device of the second aspect of this utility model has the same technical effects as the cleaning device 100 in the above embodiments. Further details will not be provided here.
[0050] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings under the application concept of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.
Claims
1. A cleaning device for cleaning reagent needles, characterized in that, The cleaning device includes: A cleaning tank defines a cleaning chamber and a rinsing channel. The inner periphery of the cleaning tank includes a first surface and a second surface arranged opposite each other along a first direction. The rinsing channel has a rinsing port communicating with the cleaning chamber. A reagent needle is adapted to extend into the cleaning chamber and is located between the first surface and the second surface. The first outer peripheral wall of the reagent needle, along the first direction and close to the rinsing port, is adapted to face the rinsing port. The second outer peripheral wall of the reagent needle, along the first direction and away from the rinsing port, is adapted to face the second surface. This is so that after liquid is introduced into the rinsing channel, a portion of the liquid discharged from the rinsing port can reach the first outer peripheral wall, and another portion can reach the second outer peripheral wall after impacting the second surface.
2. The cleaning device according to claim 1, characterized in that, The cleaning tank includes a shell and a boss. The shell defines the cleaning chamber and has a first surface and a second surface. The two ends of the boss are respectively connected to the first surface and the second surface. The boss has a first drainage channel and a first drainage port at the upper end of the first drainage channel. The first drainage port is adapted to open towards one end of the reagent needle.
3. The cleaning device according to claim 2, characterized in that, The boss includes a third surface, a fourth surface, and a fifth surface. The first drain outlet is located on the third surface. Along a direction perpendicular to the direction of gravity and the first direction, the fourth surface and the fifth surface are respectively connected to the two sides of the third surface. The fourth surface extends downward from one end connected to the third surface to the other end away from the third surface. The fifth surface extends downward from one end connected to the third surface to the other end away from the third surface.
4. The cleaning device according to claim 2, characterized in that, Along a direction perpendicular to the direction of gravity and the first direction, the first drain outlet is located at the center of the third surface, and the fourth surface and the fifth surface are symmetrically arranged on both sides of the third surface.
5. The cleaning device according to claim 2, characterized in that, The outer casing also defines a second drainage channel, the upper end of which has a second drainage port, which communicates with the cleaning chamber and is located on the lower side of the boss.
6. The cleaning apparatus according to claim 5, characterized in that, The cleaning device further includes a waste liquid collection component, which is connected to the first drain channel and the second drain channel, so that the waste liquid collection component can collect the liquid flowing through the first drain channel and the second drain channel.
7. The cleaning device according to claim 1, characterized in that, The cleaning device further includes a liquid supply assembly, which is connected to the rinsing channel and adapted to introduce the liquid into the rinsing channel.
8. The cleaning apparatus according to claim 1, characterized in that, Along the first direction, the distance between the center of the first drain outlet and the second surface is less than the distance between the center of the first drain outlet and the first surface.
9. A medical device, characterized in that, include: The cleaning apparatus according to any one of claims 1-8.
10. The medical device according to claim 9, characterized in that, The medical device also includes the reagent needle and a fixing device. The area of the second outer peripheral wall that can receive the liquid discharged from the flushing port is the cleaning area. The minimum distance between the cleaning area and the second surface along the first direction is L. The fixing device can fix the reagent needle and make the reagent needle extend into the cleaning chamber and be located between the first surface and the second surface, and satisfy: 0.5mm≤L≤1.5mm.