An image analysis based needle tip detection device

By using an image analysis-based needle tip detection device, combined with visual inspection and an air blowing device, automated and efficient needle tip detection has been achieved, solving the problem of inaccuracy in visual inspection and improving detection accuracy and efficiency.

CN224332812UActive Publication Date: 2026-06-09SHENZHEN YUANFA METAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN YUANFA METAL CO LTD
Filing Date
2025-08-25
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In existing technologies, needle tip detection mainly relies on visual observation, which leads to inaccurate detection results and low work efficiency.

Method used

An image analysis-based needle tip detection device is adopted, which combines a vision inspection mechanism with a needle tip placement mechanism. The needle tip is detected by image analysis, and defective needle tips are removed by an air blowing device, thus achieving automated detection.

Benefits of technology

It improves the accuracy of needle tip detection, avoids eye fatigue caused by visual observation, and increases detection efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

An image analysis-based needle tip detection device includes a machine body, a detection device arranged on the machine body, the machine body including a machine case and a support frame connected to the machine case, the detection device including a visual detection mechanism and a needle tip placement mechanism, the needle tip placement mechanism including a shell and a needle tip placement assembly arranged inside the shell, the needle tip placement assembly including a placement portion and a blowing portion, the placement portion being located at the upper portion of the blowing portion, a plurality of needle tip placement holes being arranged on the top of the placement portion, a plurality of blowing grooves being arranged on the top of the blowing portion, one blowing groove corresponding to one needle tip placement hole, the needle tip placement hole and the blowing groove forming a needle tip placement groove, which avoids eye fatigue caused by naked eye observation during the needle tip detection process, effectively improves the accuracy of the detection result, and improves the work efficiency.
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Description

Technical Field

[0001] This application relates to the technical field of medical device defect detection, and in particular to a needle tip detection device based on image analysis. Background Technology

[0002] Medical needles encompass a variety of applications, such as injection needles and indwelling needles. These needles typically consist of a long tube or cannula with a fluid flow cavity. The proximal end is usually fixed to a syringe, while the distal end has a specific geometric shape to penetrate an elastic diaphragm and / or the patient's muscle or tissue to deliver medication stored in the syringe. Because medical needles require skin puncture for use, their performance requirements are high. Testing of various properties is essential before use, with key performance indicators for the needle tip including its angle.

[0003] In existing technologies, needle tip detection is usually performed by visual observation, which can easily cause eye fatigue and makes it difficult to guarantee accurate results, resulting in low work efficiency. Utility Model Content

[0004] This invention provides a needle tip detection device based on image analysis, which avoids eye fatigue caused by visual observation during needle tip detection, effectively improves the accuracy of detection results, and increases work efficiency.

[0005] To achieve the aforementioned objectives, this application adopts the following technical solution:

[0006] A needle tip detection device based on image analysis, characterized in that it includes:

[0007] The main body, which includes the chassis and the support frame connected to the chassis;

[0008] The detection device installed on the body includes a visual inspection mechanism and a needle tip placement mechanism. The needle tip placement mechanism includes a housing and a needle tip placement assembly installed inside the housing. The needle tip placement assembly includes a placement part and an air blowing part. The placement part is located above the air blowing part. The top of the placement part is provided with several needle tip placement holes. The top of the air blowing part is provided with several air blowing grooves. One air blowing groove corresponds to one needle tip placement hole. The needle tip placement hole and the air blowing groove form a needle tip placement groove.

[0009] In some alternative implementations, the chassis is provided with a connector, and the back of the air blowing part is also provided with a connector that mates with the connector.

[0010] In some alternative implementations, the detection device is detachably connected to the body.

[0011] In some alternative implementations, the connector is located at the center of the top of the chassis.

[0012] In some alternative implementations, the support frame is elliptical in shape.

[0013] In some alternative implementations, a receiving space is formed between the needle tip placement component and the housing.

[0014] In some alternative implementations, the vision inspection mechanism includes four vision inspection components connected to a support frame.

[0015] In some alternative implementations, four vision inspection components are evenly distributed on the support frame, and the inspection area of ​​the four vision inspection components just covers the entire needle tip placement mechanism.

[0016] In some alternative implementations, the back of the blowing part is provided with a plurality of air inlets, one air inlet corresponding to one air inlet.

[0017] In some alternative implementations, an air inlet connector is connected to an air duct and a needle tip placement hole.

[0018] The image analysis-based needle tip detection device provided in this application has the following beneficial effects:

[0019] In the technical solution adopted in this application, through the body and the detection device set on the body, the visual inspection mechanism in the detection device cooperates with the needle tip placement mechanism. The four visual inspection components in the visual inspection mechanism are evenly distributed on the support frame, and the detection area of ​​the four visual inspection components just covers the entire needle tip placement mechanism. In the needle tip placement mechanism, the placement part of the needle tip placement component is located above the air blowing part. One air blowing groove of the air blowing part corresponds to one needle tip placement hole of the placement part. The needle tip placement hole and the air blowing groove form a needle tip placement groove. The needle tip is placed inside the needle tip placement groove. After the detection device takes a picture of the actual object and compares it with the standard picture, the signal is transmitted to the external control switch to blow out the unqualified needle tip. This realizes that during the needle tip detection process, eye fatigue caused by visual observation is avoided, effectively improving the accuracy of the detection results and improving work efficiency. Attached Figure Description

[0020] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is an overall structural diagram of a needle tip detection device based on image analysis according to this application;

[0022] Figure 2 This is an overall structural diagram of a needle tip detection device based on image analysis, as described in this application, from another perspective.

[0023] Figure 3 This is another perspective of the overall structure of the needle tip detection device based on image analysis in this application;

[0024] Figure 4 yes Figure 2 Enlarged view of circle A shown;

[0025] Figure 5 This is a structural diagram of the needle tip placement mechanism in a needle tip detection device based on image analysis according to this application;

[0026] Figure 6 This is a structural diagram of the placement part in a needle tip detection device based on image analysis according to this application;

[0027] Figure 7 This is a structural diagram of the air blowing section in a needle tip detection device based on image analysis according to this application;

[0028] Figure 8 yes Figure 7 Enlarged view of circle B shown;

[0029] Figure 9 This is a structural diagram of the air blowing section in an image analysis-based needle tip detection device according to this application from another perspective;

[0030] Figure 10 This is a cross-sectional structural diagram of the needle tip placement component in a needle tip detection device based on image analysis according to this application.

[0031] Figure label:

[0032] 10. Body; 11. Chassis; 111. Connector; 12. Support frame;

[0033] 20. Detection device; 21. Visual inspection mechanism; 211. Visual inspection component; 22. Needle tip placement mechanism; 22A. Accommodation space; 221. Housing; 222. Needle tip placement component; 223. Placement part; 224. Air blowing part; 225. Needle tip placement hole; 226. Air blowing groove; 227. Air inlet connector; 228. Connecting seat. Detailed Implementation

[0034] The specific embodiments of this application are described below with reference to the accompanying drawings and examples. Through the content described in this specification, those skilled in the art can clearly and completely understand the technical solution, the technical problem solved, and the resulting technical effects of this application. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, for ease of description, only the parts related to this application are shown in the accompanying drawings.

[0035] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the contents described in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size should fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0036] The use of terms such as "first," "second," and "the" does not imply quantity limitation and may indicate singular or plural. The terms "comprising," "including," "having," and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or modules is not limited to the listed steps or units, but may also include steps or units not listed, or other steps or units inherent to such processes, methods, products, or devices. The terms "connected," "linked," and "coupled" used in this application are not limited to physical or mechanical connections, but may also include direct or indirect electrical connections.

[0037] It should also be noted that the longitudinal section corresponding to the embodiment of this application can be the section corresponding to the front view direction, the transverse section can be the section corresponding to the right view direction, and the horizontal section can be the section corresponding to the top view direction.

[0038] Furthermore, where there is no conflict, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 This is an overall structural diagram of a needle tip detection device based on image analysis according to this application. Figure 2 This is an overall structural diagram of the needle tip detection device based on image analysis, from another perspective, according to this application. Figure 3 This is another perspective of the overall structural diagram of the pin-tip detection device based on image analysis proposed in this application. Figure 4 yes Figure 2 An enlarged view of circle A shown. Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a needle tip detection device based on image analysis includes a body 10 and a detection device 20 disposed on the body 10. The body 10 includes a chassis 11 and a support frame 12 connected to the chassis 11. A connector 111 is provided on the chassis 11 and the connector 111 is located at the center of the top of the chassis 11. The support frame 12 is elliptical in shape.

[0040] Continue to refer to Figure 1 Please refer to them together. Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 , Figure 5 This is a structural diagram of the needle tip placement mechanism in a needle tip detection device based on image analysis according to this application. Figure 6 This is a structural diagram of the placement part in a needle tip detection device based on image analysis according to this application. Figure 7 This is a structural diagram of the air blowing section in a needle tip detection device based on image analysis according to this application. Figure 8 yes Figure 7 The enlarged view of circle B shown. Figure 9 This is a structural diagram of the air blowing section in the needle tip detection device based on image analysis according to this application, from another perspective. Figure 10 This is a cross-sectional structural diagram of the needle tip placement component in a needle tip detection device based on image analysis according to this application. Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, the detection device 20 is detachably connected to the body 10. The detection device 20 includes a vision inspection mechanism 21 and a needle tip placement mechanism 22. The vision inspection mechanism 21 includes four vision inspection components 211, which are connected to the support frame 12 and are evenly distributed on the support frame 12. The inspection area of ​​the four vision inspection components 211 just covers the entire needle tip placement mechanism 22. The needle tip placement mechanism 22 includes a housing 221 and needle tip placement components 222 disposed inside the housing 221. A receiving space 22A is formed between the needle tip placement components 222 and the housing 221 to accommodate defective needle tips.

[0041] Continue to refer to Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10The needle tip placement assembly 222 shown includes a placement part 223 and an air blowing part 224. The placement part 223 is located above the air blowing part 224. The top of the placement part 223 has several needle tip placement holes 225, and the top of the air blowing part 224 has several air blowing grooves 226. Each air blowing groove 226 corresponds to one needle tip placement hole 225, and the needle tip placement holes 225 and air blowing grooves 226 form needle tip placement grooves. The back of the air blowing part 224 has several air inlet connectors 227, each air inlet connector 227 corresponding to one air blowing groove 226. Specifically, one air inlet connector 227 connects to one air blowing groove 226 and is connected to a... A needle tip placement hole 225; the back of the air blowing part 224 is also provided with a connecting seat 228, which cooperates with the connector 111. When the connecting seat 228 and the connector 111 are in contact, the detection device 20 is connected to the body 10. When the connecting seat 228 and the connector 111 are separated, the detection device 20 is separated from the body 10. This realizes a detachable connection between the detection device 20 and the body 10, so that when the needle tip on one detection device 20 is being detected, another detection device 20 full of needle tips is ready. Multiple detection devices 20 are used alternately, and the detection process is uninterrupted, which effectively improves work efficiency.

[0042] Here, the image analysis-based needle tip detection device includes a body 10 and a detection device 20 disposed on the body 10. The body 10 includes a housing 11 and a support frame 12 connected to the housing 11. The detection device 20 includes a vision detection mechanism 21 and a needle tip placement mechanism 22. The vision detection mechanism 21 includes four vision detection components 211, which are connected to the support frame 12 and are evenly distributed on the support frame 12. The detection area of ​​the four vision detection components 211 just covers the entire needle tip placement mechanism 22. The needle tip placement mechanism 22 includes a housing 221 and needle tip placement components 222 disposed inside the housing 221. The needle tip placement components 222 include a placement part 223 and an air blowing part 224. This avoids eye fatigue caused by visual observation during needle tip detection, effectively improves the accuracy of the detection results, and increases work efficiency.

[0043] To facilitate understanding, the working principle of this application is further described as follows: In daily operation, the image analysis-based needle tip detection device inserts a needle tip into the placement part 223 of the needle tip placement mechanism 22, with the detection area facing outwards to facilitate image capture by the visual inspection component 211. Then, through the cooperation between the connecting seat 228 and the connecting head 111, the detection device 20 is connected to the body 10. At this time, when an external sensing device detects that the needle tip placement mechanism 22 is connected to the connecting head 111, the visual inspection component 211 is activated again via an external automatic control switch. The visual inspection component 211 then captures an image of all the needle tips placed in the needle tip placement mechanism 22, enabling simultaneous capture of multiple needle tips in the same needle tip placement mechanism 22, thus completing a 360° image capture. Finally, the captured images are uploaded to the electronic system. The brain comparison platform compares the needle tip with a specified standard photograph and determines whether it is qualified or unqualified based on the allowable error range. If an unqualified needle tip is identified, its position is locked, and a signal is transmitted to an external automatic control switch. When air is supplied to the air outlet 226 through the air inlet connector 227, the air outlet in the corresponding air outlet 226 blows air, blowing the needle tip out and into the receiving space 22A. After collection, it should be noted that an air pressure detection device 20 can be connected to the air transmission pipeline to determine whether the needle tip has been blown out based on the air pressure value. Furthermore, another needle tip placement mechanism 22 can be filled with needle tips in advance. After testing the needle tips in one needle tip placement mechanism 22, the other needle tip placement mechanism 22 filled with needle tips can be connected to the machine body 10, which effectively improves the accuracy of the test results and increases work efficiency.

[0044] Although this application has been described and illustrated with reference to specific embodiments thereof, such description and illustration are not limiting of this application. It will be readily understood by those skilled in the art that various changes can be made and equivalent elements can be substituted within embodiments without departing from the true spirit and scope of this application as defined by the appended claims. Illustrations may not be drawn to scale. Differences may exist between the technical representation in this application and actual implementation due to variables in the manufacturing process, etc. Other embodiments of this application may exist that are not specifically described. The description and illustrations should be considered illustrative rather than restrictive. Modifications can be made to adapt particular circumstances, materials, composition, methods, or processes to the objectives, spirit, and scope of this application. All such modifications fall within the scope of the appended claims. While the methods disclosed herein have been described with reference to specific operations performed in a particular order, it should be understood that these operations can be combined, subdivided, or reordered to form equivalent methods without departing from the teachings of this application. Therefore, unless specifically indicated herein, the order and grouping of operations do not limit this application.

Claims

1. A needle tip detection device based on image analysis, characterized in that, include The body (10) includes a chassis (11) and a support frame (12) connected to the chassis (11); The detection device (20) is installed on the body (10). The detection device (20) includes a visual inspection mechanism (21) and a needle tip placement mechanism (22). The needle tip placement mechanism (22) includes a housing (221) and a needle tip placement assembly (222) installed inside the housing (221). The needle tip placement assembly (222) includes a placement part (223) and an air blowing part (224). The placement part (223) is located above the air blowing part (224). The top of the placement part (223) is provided with a plurality of needle tip placement holes (225). The top of the air blowing part (224) is provided with a plurality of air blowing grooves (226). One air blowing groove (226) corresponds to one needle tip placement hole (225). The needle tip placement hole (225) and the air blowing groove (226) form a needle tip placement groove.

2. The needle tip detection device based on image analysis according to claim 1, characterized in that, The chassis (11) is provided with a connector (111), and the back of the air blowing part (224) is also provided with a connector (228), which is in conjunction with the connector (111).

3. The image analysis-based needle tip detection device according to claim 2, characterized in that, The detection device (20) is detachably connected to the body (10).

4. The image analysis-based needle tip detection device according to claim 3, characterized in that, The connector (111) is located at the center of the top of the chassis (11).

5. The image analysis-based needle tip detection device according to claim 4, characterized in that, The support frame (12) is elliptical in shape.

6. The image analysis-based needle tip detection device according to claim 5, characterized in that, A receiving space (22A) is formed between the needle tip placement component (222) and the housing (221).

7. The image analysis-based needle tip detection device according to claim 6, characterized in that, The visual inspection mechanism (21) includes four visual inspection components (211), which are connected to the support frame (12).

8. The image analysis-based needle tip detection device according to claim 7, characterized in that, Four visual inspection components (211) are evenly distributed on the support frame (12), and the inspection area of ​​the four visual inspection components (211) just covers the entire needle tip placement mechanism (22).

9. The image analysis-based needle tip detection device according to claim 8, characterized in that, The back of the air blowing section (224) is provided with several air inlet connectors (227), and one air inlet connector (227) corresponds to one air blowing groove (226).

10. The image analysis-based needle tip detection device according to claim 9, characterized in that, An air inlet connector (227) is connected to an air outlet (226) and to a needle tip placement hole (225).