Centering structure of sample adding needle, sample adding device and detection equipment
By designing the centering structure of the support ring and elastic components, the cross-contamination and error of the sample filler in in vitro diagnostic equipment is solved, and the automatic centering of the sample filler is achieved, reducing costs and operational complexity, and ensuring the accuracy of the results. Sex and reliability.
Patent Information
- Application Number
- CN202420534775.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-03-19
AI Technical Summary
In in vitro diagnostic equipment, cross-contamination is prone to occur when using the same sample to load different samples or reagents, resulting in inaccurate results and residues affect the reliability and accuracy of the addition amount. Traditional solutions restrict mechanical position or debugging The structure and cumbersome operation are when solving the problem, which increases costs.
Design a centering structure for the sample needle, including a support ring and an elastic assembly, which is installed above the cleaning tank, and the elastic assembly is elastically contacted with the outer tube wall of the sample needle, guiding the sample needle to be centered through the needle hole , avoid touching the inner wall of the cleaning tank, and reduce mechanical structural accuracy and manual debugging requirements.
The automatic centering of the sample needle is achieved to avoid cross-contamination, reduce the equipment manufacturing cost, time cost and labor cost, and simplify the operation process.
Smart Images
Figure CN222353924U_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of medical technology, and in particular to a centering structure of a sample adding needle, a sample adding device and a detection device. Background Art
[0002] When the sample needle is used in an in vitro diagnostic device, it is often necessary to add samples or reagents. When the same sample needle is used to add samples to different samples or reagents, cross contamination may occur, resulting in inaccurate results. By cleaning the sample needle, the residues of the previous sample or reagent can be completely removed to avoid cross contamination. In addition, the sample or reagent remaining on the sample needle may cause errors in the amount of addition, affecting the reliability and accuracy of the results. Regular cleaning of the sample needle can ensure the accurate amount of sample or reagent added, eliminate this error, and ensure accurate sample processing. During the cleaning process, it is usually required that the sample needle cannot touch the inner wall of the cleaning tank; otherwise, the sample needle is not cleaned properly or the outer wall of the sample needle is covered with liquid, which will affect the subsequent test results. However, traditional solutions basically ensure that the sample needle does not touch the inner wall of the cleaning tank by strictly limiting the mechanical position and adding debugging processes. The structure is complex and the operation is cumbersome.
[0003] BACKGROUND OF THE PRESENT APPLICATION The above information disclosed is only for understanding the background of the concept of the present application and may contain information that does not constitute the prior art. Summary of the invention
[0004] Based on this, it is necessary to provide a centering structure for a sample adding needle, a sample adding device and a detection equipment to address the above problems.
[0005] A centering structure for a sample adding needle, comprising:
[0006] A support ring, the support ring is used to be installed above the cleaning tank, and a needle hole is formed through the middle of the support ring for the sample injection needle to pass through; and
[0007] An elastic component is connected to the support ring, and is used to elastically abut against the outer tube wall of the sample adding needle to guide the sample adding needle to pass through the needle hole in the center and extend into the cleaning tank, and to allow a gap to exist between the outer tube wall of the sample adding needle and the inner wall of the cleaning tank.
[0008] Before describing the technical effects that can be achieved by the embodiments of the present application, it should be noted that some traditional solutions for controlling the movement of the sample addition needle have disadvantages. For example, limiting the mechanical position or improving the processing accuracy will lead to an increase in the equipment processing cost; and if the problem is solved through debugging, the labor cost will increase.
[0009] In the face of the above-mentioned problems, the centering structure of the sample loading needle in the present application can at least achieve the following beneficial effects: the centering structure only needs to be set above the cleaning tank, and the sample loading needle needs to pass through the needle hole in the middle of the support ring before entering the cleaning tank. The sample loading needle can be automatically centered under the guidance of the elastic component to avoid the sample loading needle from touching the inner wall of the cleaning tank. The entire process does not require manual debugging, the debugging process can be omitted, and the requirements for the mechanical structure accuracy of the equipment are reduced, thereby reducing the equipment manufacturing cost, time cost and labor cost.
[0010] In one embodiment, the number of the elastic components is set to be multiple, and the multiple elastic components are arranged at intervals along the circumference of the support ring. Such an arrangement can provide a better centering auxiliary effect for the sample addition needle passing through the pinhole.
[0011] In one embodiment, the elastic component includes an elastic member and a centering sphere, one end of the elastic member is connected to the support ring, and the other end of the elastic member is connected to the centering sphere, and the centering sphere at least partially protrudes from the hole wall of the needle hole to elastically abut against the outer tube wall of the sampling needle.
[0012] In one embodiment, the elastic member is a compression spring.
[0013] In one embodiment, the plurality of elastic members and the plurality of centering balls are arranged at equal intervals along the circumference of the support ring.
[0014] In one embodiment, the elastic component includes a driving member and a centering ball, one end of the driving member is connected to the support ring, and the other end of the driving member is connected to the centering ball, and the driving member is used to drive the centering ball to move toward the center of the needle hole so that the centering ball elastically abuts against the outer tube wall of the sampling needle.
[0015] In one embodiment, the driving member is a pneumatic mechanism, such as a cylinder.
[0016] The present application also provides a sample loading device, which includes a sample loading needle and a centering structure as described in any of the above embodiments. The above sample loading device, because it includes the centering structure as described in any of the above embodiments, also includes at least the following beneficial effects: the centering structure only needs to be set above the cleaning tank, and the sample loading needle needs to pass through the needle hole in the middle of the support ring before entering the cleaning tank. The sample loading needle can be automatically centered under the guidance of the elastic component to avoid the sample loading needle from touching the inner wall of the cleaning tank. The entire process does not require manual debugging, and the debugging process can be omitted, which also reduces the requirements for the mechanical structure accuracy of the equipment, and reduces the equipment manufacturing cost, time cost and labor cost.
[0017] The present application also provides a detection device, characterized in that it includes a cleaning tank and a sample adding device as described in any of the above embodiments.
[0018] Since the above-mentioned detection device includes the centering structure described in any of the above-mentioned embodiments, the detection device also includes at least the following beneficial effects: the centering structure only needs to be set above the cleaning tank, and the sample loading needle needs to pass through the needle hole in the middle of the support ring before entering the cleaning tank. The sample loading needle can be automatically centered under the guidance of the elastic component to avoid the sample loading needle from touching the inner wall of the cleaning tank. The entire process does not require manual debugging, the debugging process can be omitted, and the requirements for the mechanical structure accuracy of the equipment are reduced, thereby reducing the equipment manufacturing cost, time cost and labor cost.
[0019] In one embodiment, the support ring is coaxially arranged with the cleaning pool. If the cleaning pool is substantially cylindrical, the cleaning pool and the support ring are coaxially arranged, so that there is a uniform gap between the inner wall of the cleaning pool and the outer wall of the sample injection needle passing through the support ring. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0021] Figure 1 A schematic structural diagram of a sample addition needle and a cleaning pool provided in one embodiment of the present invention.
[0022] Figure 2 A schematic structural diagram of a centering structure provided for an embodiment of the present invention.
[0023] Figure 3 A schematic structural diagram of a sample addition needle and a centering structure provided in one embodiment of the present invention.
[0024] Reference numerals:
[0025] 10. Sample adding needle; 20. Cleaning tank; 30. Centering structure; 100. Support ring; 110. Needle hole; 200. Elastic component; 210. Elastic part; 220. Centering sphere. DETAILED DESCRIPTION
[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.
[0027] See also Figure 1 , Figure 2 and Figure 3 In some embodiments, the present application provides a centering structure 30 for a sample loading needle 10, which includes a support ring 100 and an elastic component 200. The support ring 100 is used to be installed above a cleaning tank 20, and a needle hole 110 is formed in the middle of the support ring 100 for the sample loading needle 10 to pass through; the elastic component 200 is connected to the support ring 100, and the elastic component 200 is used to elastically abut against the outer tube wall of the sample loading needle 10 to guide the sample loading needle 10 to pass through the needle hole 110 in the center and extend into the cleaning tank 20, and to leave a gap between the outer tube wall of the sample loading needle 10 and the inner wall of the cleaning tank 20.
[0028] Before describing the technical effects that can be achieved by the embodiments of the present application, it should be noted that some traditional solutions for controlling the movement of the sample addition needle 10 have disadvantages. For example, limiting the mechanical position or improving the processing accuracy will lead to an increase in the equipment processing cost; and if it is solved by debugging, the labor cost will increase.
[0029] In the face of the above-mentioned problems, the centering structure 30 of the sample loading needle 10 of the present application can at least achieve the following beneficial effects: the centering structure 30 only needs to be set above the cleaning tank 20, and the sample loading needle 10 needs to pass through the needle hole 110 in the middle of the support ring 100 before entering the cleaning tank 20. The sample loading needle 10 can be automatically centered under the guidance of the elastic component 200 to avoid the sample loading needle 10 from touching the inner wall of the cleaning tank 20. The entire process does not require manual debugging, and the debugging process can be omitted, which also reduces the requirements on the mechanical structure accuracy of the equipment, and reduces the equipment manufacturing cost, time cost and labor cost.
[0030] Specifically, Figure 2 and Figure 3 As shown, in some embodiments, the number of the elastic components 200 is set to be multiple, and the multiple elastic components 200 are arranged at intervals along the circumference of the support ring 100. Such an arrangement can provide a better centering auxiliary effect for the sample addition needle 10 passing through the needle hole 110.
[0031] More specifically, if Figure 2 and Figure 3As shown, in some embodiments, the elastic component 200 includes an elastic member 210 and a centering sphere 220, one end of the elastic member 210 is connected to the support ring 100, and the other end of the elastic member 210 is connected to the centering sphere 220, and the centering sphere 220 at least partially protrudes from the hole wall of the needle hole 110 to elastically abut against the outer tube wall of the sampling needle 10.
[0032] More specifically, in some embodiments, the elastic member 210 is a compression spring.
[0033] More specifically, if Figure 2 and Figure 3 As shown, in some of the embodiments, the plurality of elastic members 210 and the plurality of centering balls 220 are arranged at equal intervals along the circumference of the support ring 100 .
[0034] In other embodiments, the elastic component 200 includes a driving member and a centering ball 220, and the driving member may be a pneumatic mechanism, such as a cylinder, etc. One end of the driving member is connected to the support ring 100, and the other end of the driving member is connected to the centering ball 220, and the driving member is used to drive the centering ball 220 to move toward the center of the needle hole 110 so that the centering ball 220 elastically abuts against the outer tube wall of the sample injection needle 10.
[0035] In addition, the present application also provides a sample loading device, which includes a sample loading needle 10 and a centering structure 30 as described in any of the above embodiments. Since the above sample loading device includes the centering structure 30 as described in any of the above embodiments, the sample loading device also includes at least the following beneficial effects: the centering structure 30 only needs to be set above the cleaning tank 20, and the sample loading needle 10 needs to pass through the needle hole 110 in the middle of the support ring 100 before entering the cleaning tank 20. The sample loading needle 10 can be automatically centered under the guidance of the elastic component 200 to avoid the sample loading needle 10 from touching the inner wall of the cleaning tank 20. The whole process does not require manual debugging, and the debugging process can be omitted, which also reduces the requirements for the mechanical structure accuracy of the equipment, and reduces the equipment manufacturing cost, time cost and labor cost.
[0036] In addition, the present application also provides a detection device, characterized in that it includes a cleaning tank 20 and a sample adding device as described in any of the above embodiments. It should be noted that the type of the detection device is not limited, for example, it can be a biochemical detection device, an immune detection device or a biochemical immune cascade detection device, wherein the immune detection device can be an electrochemical luminescence analyzer, etc.
[0037] Since the above-mentioned detection device includes the centering structure 30 described in any of the above-mentioned embodiments, the detection device also includes at least the following beneficial effects: the centering structure 30 only needs to be set above the cleaning tank 20, and the sample adding needle 10 needs to pass through the needle hole 110 in the middle of the support ring 100 before entering the cleaning tank 20. The sample adding needle 10 can be automatically centered under the guidance of the elastic component 200 to avoid the sample adding needle 10 from touching the inner wall of the cleaning tank 20. The entire process does not require manual debugging, and the debugging process can be omitted, which also reduces the requirements for the mechanical structure accuracy of the equipment, and reduces the equipment manufacturing cost, time cost and labor cost.
[0038] In some embodiments, the support ring 100 is coaxially arranged with the cleaning pool 20. If the cleaning pool 20 is substantially cylindrical, the cleaning pool 20 and the support ring 100 are coaxially arranged, so that there is a uniform gap between the inner wall of the cleaning pool 20 and the outer wall of the sample injection needle 10 passing through the support ring 100.
[0039] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0040] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.
[0041] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.
[0042] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0043] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0044] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0045] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.
[0046] In the description of this specification, the description of reference terms "one embodiment", "other implementation methods", etc. means that the specific features, structures, materials or features described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present application. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.
Claims
1. A centering structure for a sample adding needle, characterized in that: include: A support ring, the support ring is used to be installed above the cleaning tank, and a needle hole is formed through the middle of the support ring for the sample injection needle to pass through; and An elastic component is connected to the support ring, and is used to elastically abut against the outer tube wall of the sample adding needle to guide the sample adding needle to pass through the needle hole in the center and extend into the cleaning tank, and to allow a gap to exist between the outer tube wall of the sample adding needle and the inner wall of the cleaning tank.
2. The centering structure of the sample injection needle according to claim 1, characterized in that: The number of the elastic components is set to be multiple, and the multiple elastic components are arranged at intervals along the circumference of the support ring.
3. The centering structure of the sample injection needle according to claim 2, characterized in that: The elastic component includes an elastic member and a centering sphere, one end of the elastic member is connected to the support ring, and the other end of the elastic member is connected to the centering sphere, and the centering sphere at least partially protrudes from the hole wall of the needle hole to elastically abut against the outer tube wall of the sampling needle.
4. The centering structure of the sample injection needle according to claim 3, characterized in that: The elastic member is a compression spring.
5. The centering structure of the sample injection needle according to claim 3, characterized in that: The plurality of elastic members and the plurality of centering balls are arranged at equal intervals along the circumference of the support ring.
6. The centering structure of the sample injection needle according to claim 3, characterized in that: The elastic component includes a driving member and a centering ball, one end of the driving member is connected to the support ring, and the other end of the driving member is connected to the centering ball, and the driving member is used to drive the centering ball to move toward the center of the needle hole so that the centering ball elastically abuts against the outer tube wall of the sampling needle.
7. The centering structure of the sample injection needle according to claim 6, characterized in that: The driving member is a pneumatic mechanism.
8. A sample adding device, characterized in that: The invention comprises a sample adding needle and a centering structure as claimed in any one of claims 1 to 7.
9. A detection device, characterized in that: It comprises a cleaning tank and a sample adding device as claimed in claim 8.
10. The detection device according to claim 9, characterized in that: The support ring is coaxially arranged with the cleaning tank.