Sampling needle cleaning device

Abstract

The utility model discloses a sample adding needle cleaning device which comprises a cleaning component, a cleaning containing hole is formed in the cleaning component, the cleaning containing hole is used for containing a sample adding needle head, and the cleaning containing hole extends in a preset direction so that an upper opening and a lower opening can be formed in the upper end and the lower end of the cleaning component respectively. The cleaning component is provided with water spraying holes, the water spraying holes extend to the hole wall of the cleaning containing hole to form a plurality of nozzles, the nozzles are distributed in the circumferential direction of the cleaning containing hole, and the sample adding needle cleaning device can improve the efficiency and convenience of sample adding needle cleaning.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a sample dispensing needle cleaning device. Background Technology

[0002] Due to the adhesion of liquids, after sample aspiration and dispensing, the sample adheres to the surface of the needle and needs to be washed with water. However, some highly viscous samples are very difficult to rinse, and these samples are often carried into the next test, causing cross-contamination between sample tests. Therefore, it is necessary to clean the samples adhering to the needle wall. Currently, some rapid liquid aspiration and automated in vitro diagnostic analyzers do not have corresponding cleaning devices to quickly and effectively handle samples adhering to the needle wall. Therefore, a device is needed to quickly and effectively clean the samples adhering to the needle wall of the aspiration needle in in vitro diagnostic analyzers. Utility Model Content

[0003] This invention provides a needle cleaning device that can improve the efficiency and convenience of needle cleaning.

[0004] To solve the above-mentioned technical problems, this utility model provides a sample dispensing needle cleaning device, comprising:

[0005] A cleaning component is provided, wherein a cleaning receiving hole is formed on the cleaning component for accommodating a sample dispensing needle, the cleaning receiving hole extends along a predetermined direction to form an upper opening and a lower opening at the upper and lower ends of the cleaning component, respectively, and a water spray hole is formed on the cleaning component. The water spray hole extends to the wall of the cleaning receiving hole to form a nozzle, and there are multiple nozzles, which are distributed circumferentially along the cleaning receiving hole.

[0006] As a preferred embodiment of the above technical solution, the sample needle cleaning device further includes a water inlet component, on which a perforation and a water inlet hole are formed. The perforation is correspondingly arranged with the upper opening so that the perforation and the cleaning receiving hole are interconnected. One end of the water inlet hole is interconnected with the water spray hole, and the other end of the water inlet hole is interconnected with a pressurized water spray device.

[0007] As a preferred embodiment of the above technical solution, the water spray hole is arranged at an angle, and the water spray hole extends obliquely inward from top to bottom.

[0008] As a preferred embodiment of the above technical solution, the perforation is a tapered hole, which narrows from top to bottom.

[0009] As a preferred embodiment of the above technical solution, the water inlet component has a water inlet annular groove, the water inlet hole extends into the water inlet annular groove, and the water spray inlet of the spray hole is correspondingly provided with the water inlet annular groove.

[0010] As a preferred embodiment of the above technical solution, the upper end of the cleaning component and the outer side of the upper opening are provided with a first sealing annular groove and a second sealing annular groove. The first sealing annular groove and the second sealing annular groove are coaxially arranged. The diameter of the first sealing annular groove is larger than the diameter of the second sealing annular groove. A first sealing ring and a second sealing ring are respectively provided in the first sealing annular groove and the second sealing annular groove. An annular portion is formed between the first sealing annular groove and the second sealing annular groove. The water spray inlet is located on the upper surface of the annular portion. The annular portion is correspondingly arranged with the water inlet annular groove.

[0011] As a preferred embodiment of the above technical solution, the water inlet hole includes a first hole segment, a second hole segment, a third hole segment, and a fourth hole segment, which are connected sequentially. The first hole segment, the third hole segment, and the fourth hole segment are straight circular holes. The diameter of the first hole segment is larger than the diameter of the third hole segment. The second hole segment is a conical hole, located between the first hole segment and the third hole segment. The first hole segment, the second hole segment, and the third hole segment are located in the horizontal direction, and the fourth hole segment is located in the vertical direction and extends to the water inlet annular groove.

[0012] As a preferred embodiment of the above technical solution, the lower opening is provided with a first connector.

[0013] As a preferred embodiment of the above technical solution, a second connector is provided at the opening of the first hole segment.

[0014] As a preferred embodiment of the above technical solution, the cleaning receiving hole is a vertical circular perforation extending in the vertical direction.

[0015] This utility model provides a sample needle cleaning device, which includes a cleaning component. When cleaning the needle, the sample needle is inserted into the cleaning receiving hole from the upper opening and reaches the set position. High-pressure water jet is sprayed out from the nozzle through the spray hole. The high-pressure jet quickly rinses the sample needle. The rinsed water flows through the cleaning receiving hole and finally exits from the lower opening. This device can not only efficiently clean the sample needle to improve cleaning efficiency, but also improve the cleaning effect. Since the sample needle is cleaned in the cleaning receiving hole, the high-pressure water jet will not splash, which is more conducive to the collection of wastewater after cleaning and improves the convenience of cleaning. Attached Figure Description

[0016] Figure 1 A partial cross-sectional view of a sample needle cleaning device in this embodiment is shown;

[0017] Figure 2 It shows Figure 1 Enlarged diagram of point A in the diagram;

[0018] Figure 3 An exploded perspective view of a sample needle cleaning device in this embodiment is shown;

[0019] Figure 4 A three-dimensional structural schematic diagram of the cleaning component in this embodiment is shown;

[0020] Figure 5 A partial cross-sectional view of the water inlet component in this embodiment is shown;

[0021] Figure 6 A schematic diagram of a sample needle cleaning device in operation is shown in this embodiment;

[0022] In the diagram: 10, cleaning component; 20, water inlet component; 30, second connector; 40, first connector; 50, first sealing ring; 60, second sealing ring; 101, cleaning receiving hole; 102, nozzle; 103, water spray hole; 104, water spray inlet; 105, first sealing annular groove; 106, second sealing annular groove; 107, annular part; 201, perforation; 202, water inlet annular groove; 203, water inlet hole; 2031, first orifice section; 2032, second orifice section; 2033, third orifice section; 2034, fourth orifice section; 100, sample dispensing needle. Detailed Implementation

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] See Figures 1 to 6 This utility model provides a sample dispensing needle cleaning device, characterized in that it includes:

[0025] The cleaning component 10 has a cleaning receiving hole 101 formed on it. The cleaning receiving hole 101 is used to receive the sample dispensing needle 100. The cleaning receiving hole 101 extends along a predetermined direction to form an upper opening and a lower opening at the upper and lower ends of the cleaning component 10, respectively. The cleaning component 10 has a water spray hole 103 formed on it. The water spray hole 103 extends to the wall of the cleaning receiving hole 101 to form a nozzle 102. There are multiple nozzles 102, and the multiple nozzles 102 are distributed circumferentially along the cleaning receiving hole 101.

[0026] This embodiment provides a sample needle cleaning device, which includes a cleaning component 10. When cleaning the needle, the sample needle 100 is inserted into the cleaning receiving hole 101 from the upper opening and reaches the set position. High-pressure water jet is sprayed out from the nozzle 102 through the spray hole 103. The high-pressure jet quickly rinses the sample needle 100. The rinsed water flows along the cleaning receiving hole 101 and is finally discharged from the lower opening. This device can not only efficiently clean the sample needle 100 to improve cleaning efficiency, but also improve the cleaning effect. Since the sample needle 100 is cleaned in the cleaning receiving hole 101, the high-pressure water jet will not splash, which is more conducive to the collection of wastewater after cleaning and improves the convenience of cleaning.

[0027] Specifically, in this embodiment, the water spray holes 103 are evenly distributed in the circumferential direction.

[0028] In a further embodiment of this invention, the sample needle cleaning device further includes a water inlet component 20. The water inlet component 20 has a perforation 201 and a water inlet hole 203. The perforation 201 is correspondingly arranged with the upper opening so that the perforation 201 is in communication with the cleaning receiving hole 101. One end of the water inlet hole 203 is in communication with the water spray hole 103, and the other end of the water inlet hole 203 is in communication with the pressurized water spray device.

[0029] In a further embodiment of this invention, the water spray hole 103 is arranged at an angle and extends obliquely inward from top to bottom.

[0030] In this embodiment, the water spray hole 103 is an oblique hole, which can spray water obliquely downward, which is more conducive to cleaning the sample dispensing needle 100.

[0031] In a further embodiment of this invention, the tapered hole narrows from top to bottom.

[0032] In a further embodiment of this invention, an annular groove 202 is formed on the water inlet component 20, the water inlet hole 203 extends into the annular groove 202, and the water spray inlet 104 of the spray hole 103 is correspondingly provided with the annular groove 202.

[0033] In this embodiment, the water used for cleaning first enters the water inlet annular groove 202 through the water inlet 203, and then enters the water spray hole 103 through the water spray inlet 104.

[0034] In a further embodiment of this invention, a first sealing annular groove 105 and a second sealing annular groove 106 are formed at the upper end of the cleaning component 10 and outside the upper opening. The first sealing annular groove 105 and the second sealing annular groove 106 are coaxially arranged. The diameter of the first sealing annular groove 105 is larger than the diameter of the second sealing annular groove 106. A first sealing ring 50 and a second sealing ring 60 are respectively provided in the first sealing annular groove 105 and the second sealing annular groove 106. An annular portion 107 is formed between the first sealing annular groove 105 and the second sealing annular groove 106. The water spray inlet 104 is located on the upper surface of the annular portion 107. The annular portion 107 is correspondingly arranged with the water inlet annular groove 202.

[0035] The sealing structure in this embodiment can further improve its overall sealing performance.

[0036] In a further embodiment of this invention, the water inlet 203 includes a first hole segment 2031, a second hole segment 2032, a third hole segment 2033, and a fourth hole segment 2034. The first hole segment 2031, the second hole segment 2032, the third hole segment 2033, and the fourth hole segment 2034 are connected sequentially. The first hole segment 2031, the third hole segment 2033, and the fourth hole segment 2034 are straight circular holes. The diameter of the first hole segment 2031 is larger than the diameter of the third hole segment 2033. The second hole segment 2032 is a conical hole. The second hole segment 2032 is located between the first hole segment 2031 and the third hole segment 2033. The first hole segment 2031, the second hole segment 2032, and the third hole segment 2033 are located in the horizontal direction, and the fourth hole segment 2034 is located in the vertical direction and extends to the water inlet annular groove 202.

[0037] In a further embodiment of this invention, a first connector 40 is provided in the lower opening.

[0038] In a further embodiment of this example, a second connector 30 is provided at the opening of the first hole segment 2031.

[0039] In a further embodiment of this invention, the cleaning receiving hole 101 is a vertical circular through hole 201 extending in the vertical direction.

[0040] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A sample dispensing needle cleaning device, characterized in that, include: A cleaning component is provided, wherein a cleaning receiving hole is formed on the cleaning component for accommodating a sample dispensing needle, the cleaning receiving hole extends along a predetermined direction to form an upper opening and a lower opening at the upper and lower ends of the cleaning component, respectively, and a water spray hole is formed on the cleaning component. The water spray hole extends to the wall of the cleaning receiving hole to form a nozzle, and there are multiple nozzles, which are distributed circumferentially along the cleaning receiving hole.

2. The sample dispensing needle cleaning device according to claim 1, characterized in that, The sample needle cleaning device also includes a water inlet component, which has a perforation and a water inlet hole. The perforation is correspondingly arranged with the upper opening so that the perforation is connected to the cleaning receiving hole. One end of the water inlet hole is connected to the water spray hole, and the other end of the water inlet hole is connected to the pressurized water spray device.

3. The sample dispensing needle cleaning device according to claim 1, characterized in that, The water spray holes are arranged at an angle, and the water spray holes extend obliquely inward from top to bottom.

4. The sample dispensing needle cleaning device according to claim 2, characterized in that, The perforation is a tapered hole, which narrows from top to bottom.

5. The sample dispensing needle cleaning device according to claim 2, characterized in that, The water inlet component has a water inlet annular groove, the water inlet hole extends into the water inlet annular groove, and the water spray inlet of the spray hole is correspondingly arranged with the water inlet annular groove.

6. The sample dispensing needle cleaning device according to claim 5, characterized in that, The cleaning component has a first sealing annular groove and a second sealing annular groove formed at its upper end and outside the upper opening. The first sealing annular groove and the second sealing annular groove are coaxially arranged. The diameter of the first sealing annular groove is larger than the diameter of the second sealing annular groove. A first sealing ring and a second sealing ring are respectively provided in the first sealing annular groove and the second sealing annular groove. An annular portion is formed between the first sealing annular groove and the second sealing annular groove. The water spray inlet is located on the upper surface of the annular portion. The annular portion is correspondingly arranged with the water inlet annular groove.

7. The sample dispensing needle cleaning device according to claim 5, characterized in that, The water inlet includes a first section, a second section, a third section, and a fourth section, which are connected sequentially. The first, third, and fourth sections are straight circular holes, with the diameter of the first section being larger than that of the third section. The second section is a conical hole, located between the first and third sections. The first, second, and third sections are located in a horizontal direction, while the fourth section is located in a vertical direction and extends into the water inlet annular groove.

8. The sample dispensing needle cleaning device according to claim 7, characterized in that, The lower opening is provided with a first connector.

9. The sample dispensing needle cleaning device according to claim 8, characterized in that, A second connector is provided at the opening of the first hole section.

10. The needle cleaning device according to any one of claims 1 to 9, characterized in that, The cleaning receiving hole is a vertical circular perforation extending in the vertical direction.

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