A puncture device clogging measuring device

Abstract

The utility model provides a kind of puncture device measuring plugging device, it is related to measuring plugging device technical field, comprising: connecting pipe;Puncture head, is located in the bottom end of the connecting pipe, the puncture head is communicated with the connecting pipe and forms detection flow path;Inflating mechanism, with the top end of the connecting pipe intercommunication, for into detection fluid in the detection flow path;Detection mechanism, between the connecting pipe and the puncture head, for obtaining the physical parameter change related to the detection fluid, to judge whether the puncture head is blocked. By setting connecting pipe and puncture head intercommunication and form detection flow path, inflating mechanism into detection fluid in the detection flow path, and setting detection mechanism obtains the physical parameter change related to detection fluid, to judge whether the puncture head is blocked, entire need not complex debugging, and detection result does not need to rely on precision instrument, visual degree is high, operation threshold is low, adapts to on-site rapid detection scene.

Description

Technical Field

[0001] This utility model relates to the field of occlusion detection devices, and in particular to an occlusion detection device for a puncture device. Background Technology

[0002] The puncture device for detecting blockages is a key quality inspection device in the production of infusion sets. Its core function is to accurately identify potential blockages in the puncture device caused by deviations in the size or position of the forming needle. By simulating actual infusion conditions, it introduces fluid at a specific pressure into the puncture device and judges the patency of the channel based on flow feedback, enabling rapid detection on the production line. This device is applied in the post-production quality inspection stage of puncture devices, overcoming the limitations of visual inspection, promptly rejecting defective products, effectively improving the first-pass yield of subsequent processes, reducing waste, and building a solid quality defense line for the safe use of infusion sets.

[0003] In the traditional manufacturing process of infusion set stopper puncture devices, if the dimensional accuracy or installation position of the forming needle deviates, it can easily lead to critical quality problems such as blockage and leakage. Since such defects are difficult to identify effectively through visual inspection of the product appearance, once defective products are transferred to subsequent processes, they will not only significantly reduce the first-pass yield of subsequent processes, but also increase the amount of waste and cause unnecessary production cost losses. Utility Model Content

[0004] The purpose of this invention is to provide a puncture device for detecting blockages, which can solve the problem that in the production process of infusion bottle stopper puncture devices, if the dimensional accuracy or installation position of the forming needle deviates, it can easily lead to key quality hazards such as blockage and leakage. Since such defects are difficult to effectively identify through visual inspection of the product appearance, once defective products are transferred to subsequent processes, it will not only significantly reduce the first-pass yield of subsequent processes, but also increase the amount of waste and cause unnecessary production cost losses.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a puncture device for detecting blockage, comprising: Connecting pipe; A puncture head is located at the bottom end of the connecting tube, and the puncture head is connected to the connecting tube to form a detection flow path; An inflation mechanism, connected to the top end of the connecting pipe, is used to introduce detection fluid into the detection flow path; A detection mechanism, located between the connecting tube and the puncture head, is used to acquire changes in physical parameters related to the detection fluid to determine whether the puncture head is blocked.

[0006] In a preferred embodiment, the inflation mechanism includes a support assembly, a fluid source disposed on the support assembly, and an inflation pipe communicating with the outlet end of the fluid source, wherein the inflation pipe is connected to the top end of the connecting pipe.

[0007] In a preferred embodiment, the support assembly includes a support base, a mounting plate fixed to the support base, and a clamping frame fixed to the mounting plate, wherein the fluid source is fixed on the clamping frame.

[0008] In a preferred embodiment, the fluid source is an air pump.

[0009] In a preferred embodiment, the detection mechanism includes a first detection component, which comprises: The first pipe has its top end connected to the outlet end of the inflation pipe; An elastic cavity, the top of which is connected to the bottom of the first pipe; The second pipe has its top end connected to the bottom end of the elastic cavity, and its bottom end connected to the top end of the connecting pipe. The elastic cavity is configured to produce visible deformation when the puncture head becomes blocked.

[0010] In a preferred embodiment, the bottom end of the second pipe is further provided with a connector, the connector having an annular protrusion, and the connector being detachably connected to the inner side of the top end of the connecting pipe via the annular protrusion.

[0011] In a preferred embodiment, the detection mechanism includes a second detection component, which includes: A fixing head is fixed to the outlet end of the inflation tube; A support frame is provided on one side of the bottom end of the support base; A sleeve, one end of which is fixed to the support frame; A connecting block is located at the end of the sleeve furthest from the support frame; A sliding rod is slidably mounted on the connecting block, with its top end located inside the sleeve; The top end is located at the bottom end of the slide rod.

[0012] In a preferred embodiment, the top of the sleeve is provided with a plug, and the piercing head is inserted into the inside of the plug.

[0013] In a preferred embodiment, the detection mechanism includes a third detection component, which includes: A sleeve is fixedly installed on one side of the bottom end of the support base and sleeved over the outside of the connecting tube and the puncture head; A noise monitor is installed inside the bottom end of the cannula to collect fluid noise signals from the puncture head.

[0014] In a preferred embodiment, the outer circumferential wall of the sleeve is wrapped with sound-insulating cotton.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows: by setting a connecting pipe to connect with the puncture head to form a detection flow path, the inflation mechanism introduces detection fluid into the detection flow path, and a detection mechanism is set to obtain the changes in physical parameters related to the detection fluid to determine whether the puncture head is blocked. The whole process does not require complicated debugging, and the detection results do not rely on precision instruments. It has a high degree of visualization, low operating threshold, and is suitable for rapid on-site detection scenarios. Attached Figure Description

[0016] Figure 1 A schematic diagram of the main structure of a puncture device for detecting blockage provided by this utility model; Figure 2 A schematic diagram of the elastic cavity and the second conduit in a puncture device for detecting blockage provided by this utility model; Figure 3 A schematic diagram of the mounting plate and clamping frame in a puncture device for detecting blockage provided by this utility model; Figure 4 A schematic diagram of the support frame and sleeve in a puncture device for detecting blockage provided by this utility model; Figure 5 A schematic diagram of the connecting block and the top of a puncture device for measuring blockage provided by this utility model; Figure 6 A schematic diagram of the sleeve and sound insulation cotton in a puncture device for detecting blockage provided by this utility model; Figure 7 A schematic diagram of the connecting tube and the inflation tube in a puncture device for detecting blockage provided by this utility model; Figure 8 A cross-sectional view of the cannula in a puncture device for measuring blockage provided by this utility model.

[0017] Legend: 1. Connecting tube; 101. Puncture head; 2. Inflation tube; 201. Mounting plate; 202. Clamping frame; 203. Fluid source; 204. Support base; 3. First pipe; 301. Elastic cavity; 302. Second pipe; 303. Connector; 4. Fixing head; 401. Support frame; 402. Sleeve; 403. Connecting block; 404. Top head; 405. Slide rod; 406. Plug; 5. Sleeve; 501. Sound insulation cotton; 502. Noise monitor. Detailed Implementation

[0018] 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.

[0019] Example 1: Please see Figure 1 - Figure 2 This embodiment provides a convenient device for detecting puncture device blockage, the specific idea of ​​which is as follows: A puncture device for detecting blockage includes a connecting tube 1. The device further includes the connecting tube 1, a puncture head 101, an inflation mechanism, and a detection mechanism. The puncture head 101 is located at the bottom end of the connecting tube 1 and communicates with the connecting tube 1 to form a detection flow path. The inflation mechanism is connected to the top end of the connecting tube 1 and is used to introduce detection fluid into the detection flow path. The detection mechanism is located between the connecting tube 1 and the puncture head 101 and is used to acquire changes in physical parameters related to the detection fluid to determine whether the puncture head 101 is blocked. The inflation mechanism includes a support assembly, a fluid source 203 located on the support assembly, and an inflation tube 2 communicating with the outlet end of the fluid source 203. The inflation tube 2 is connected to the top end of the connecting tube 1. The inflation tube 2 serves as a gas delivery channel, allowing gas at a preset pressure to be injected into the connecting tube 1 and the puncture head 101. A support assembly is provided on one side of the inflation tube 2, providing stable support. The support assembly includes a support base 204, a mounting plate 201 fixed to the support base 204, and a clamping frame 202 fixed to the mounting plate 201. A fluid source 203 is fixed on the clamping frame 202. A detection mechanism is provided on the outer side of one end of the puncture head 101. In this embodiment, the detection mechanism includes a first detection component.

[0020] As examples, in this embodiment, the first detection component includes: an elastic cavity 301 and a second conduit 302.

[0021] Specifically, a fluid source 203 is connected to the outer side of one end of the inflation tube 2. As the core gas source component of the device, the fluid source 203 can stably output gas pressure that meets the testing requirements. Its connection design with the inflation tube 2 ensures the airtightness of gas transmission. A clamping frame 202 is fixedly connected to the outer side of the end of the fluid source 203. The clamping frame 202 adopts a structural design adapted to the shape of the fluid source 203, which can firmly clamp the fluid source 203. A mounting plate 201 is fixedly connected to the lower surface of the clamping frame 202, and a support base 204 is fixedly connected to the lower surface of the mounting plate 201. As a specific example, in this embodiment, the fluid source 203 is an air pump.

[0022] Meanwhile, the outlet end of the inflation tube 2 is connected to the first pipe 3. The first pipe 3 serves as a transfer channel for gas transmission, ensuring that the gas output from the fluid source 203 can be smoothly transmitted to subsequent components. The bottom end of the first pipe 3 is fixedly connected to an elastic cavity 301. The elastic cavity 301 is made of high-pressure resistant elastic material, which has both good sealing and elasticity. The elastic cavity 301 can expand appropriately. The end of the elastic cavity 301 away from the inflation tube 2 is connected to the second pipe 302. One side of the second pipe 302 is connected to the end of the connecting pipe 1 away from the puncture head 101. This establishes a complete gas flow loop from the fluid source 203 to the puncture head 101, ensuring that the detection gas can be accurately delivered to the inside of the puncture device.

[0023] In addition, a connector 303 is fixedly connected to the outer side of the bottom end of the second pipe 302. The outer side of the connector 303 has an integrally formed annular protrusion. The annular protrusion is made of a material with a certain degree of elasticity. The connector 303 is tightly connected to the inner side of the top end of the connecting pipe 1 through the outer annular protrusion. The fit design between the annular protrusion and the inner wall of the connecting pipe 1 forms a multi-seal structure, which can effectively prevent gas leakage and ensure stable pressure in the pipeline.

[0024] Example 2: Please see Figure 3 - Figure 5 This embodiment provides another easy-to-detect puncture device for detecting blockages, the specific idea of ​​which is as follows: A puncture device for detecting blockage includes a connecting tube 1, and the puncture device for detecting blockage also includes an inflation tube 2 and a second detection component.

[0025] The connecting tube 1 has an inflation tube 2 on its outer side at the top end. The inflation tube 2 serves as a gas delivery channel and can inject gas at a preset pressure into the connecting tube 1 and the puncture head 101. A support member is provided on one side of the inflation tube 2 to provide stable support for the inflation tube 2. A detection mechanism is provided on the outer side of one end of the puncture head 101. In this embodiment, the detection mechanism includes a second detection component.

[0026] As examples, in this embodiment, the second detection component includes a support frame 401 and a sleeve 402.

[0027] Among them, a fixing head 4 is fixedly connected to the outer side of the bottom end of the air tube 2, and a support frame 401 is fixedly connected to the outer side of one end of the support base 204. The support frame 401 can provide stable support for subsequent components such as the sleeve 402. The sleeve 402 is fixedly connected to the inner side of the top end of the support frame 401. The inner wall of the sleeve 402 provides precise guidance for the sliding of the slide rod 405, ensuring the smoothness and coaxiality of the slide rod 405 during movement and avoiding jamming that affects use. A connecting block 403 is fixedly connected to the outer side of the end of the sleeve 402 away from the support frame 401. The connecting block 403 and the sleeve 402 form an integrated support structure. The through hole on its inner side is precisely matched with the slide rod 405, further improving the sliding accuracy of the slide rod 405.

[0028] Meanwhile, a slide rod 405 is slidably connected to the inner side of the connecting block 403, and a top head 404 is fixedly connected to the outer side of the top of the slide rod 405. The top head 404 is made of rubber, and the elasticity of the rubber allows it to form a flexible clamping when it comes into contact with the fixed head 4. A plug 406 is fixedly connected to the outer side of the top of the sleeve 402. After the puncture head 101 is inserted into the inner side of the plug 406, the radial limit of the puncture head 101 can be realized to prevent it from shaking or shifting during the detection process, ensuring the accuracy of the docking between the puncture head 101 and the puncture device, and providing support for the accuracy of the blockage detection.

[0029] Example 3: Please see Figure 6 - Figure 7 This embodiment provides another easy-to-detect puncture device for detecting blockages, the specific idea of ​​which is as follows: A puncture device for detecting blockage includes a connecting tube 1, and the puncture device for detecting blockage also includes an inflation tube 2 and a third detection component.

[0030] The connecting tube 1 has an inflation tube 2 on its outer side at the top end. The inflation tube 2 serves as a gas delivery channel and can inject gas at a preset pressure into the connecting tube 1 and the puncture head 101. A support member is provided on one side of the inflation tube 2 to provide stable support for the inflation tube 2. A detection mechanism is provided on the outer side of one end of the puncture head 101. In this embodiment, the detection mechanism includes a third detection component.

[0031] As examples, in this embodiment, the third detection component includes: sound insulation cotton 501 and noise monitor 502.

[0032] The support base 204 has a sleeve 5 fixedly connected to one side. The size of its inner cavity is adapted to the overall shape of the connecting tube 1 and the puncture head 101. The connecting tube 1 and the puncture head 101 are set inside the sleeve 5. A noise monitor 502 is specially installed on the inner side of the bottom end of the sleeve 5. It can collect the noise signal generated by the gas flow of the puncture head 101 in real time. The noise monitor 502 can convert these changes into electrical signals and transmit them to the control unit, providing multi-dimensional data support for the judgment of the blockage status. To ensure the accuracy of the data collected by the noise monitor 502, a layer of sound insulation cotton 501 is fixedly connected to the outer side of the sleeve 5. The sound insulation cotton 501 is made of high-density polyester fiber or sound-absorbing sponge material, which has excellent sound energy absorption capacity. It can effectively block the interference of external environmental noise to the noise monitor 502 and weaken the secondary noise generated by the vibration of the sleeve 5 itself, so that the noise monitor 502 can focus only on the acoustic signal inside the pipeline, which greatly improves the reliability of the detection data.

[0033] Working principle: Based on Embodiment 1, when using the device, the user can connect the connecting tube 1 and the puncture head 101 that need to be tested to the connector 303 on one side of the second pipe 302. At this time, the user can start the fluid source 203, which generates gas that flows to the inside of the inflation tube 2. The gas inside the inflation tube 2 flows through the first pipe 3 and the elastic cavity 301 to the inside of the second pipe 302, and then to the inside of the connecting tube 1. When the connecting tube 1 and the puncture head 101 are not blocked, the gas will flow out directly. When the connecting tube 1 and the puncture head 101 are blocked, the gas will cause the elastic cavity 301 to expand. By observing whether multiple elastic cavities 301 expand, it can be determined whether the connecting tube 1 and the puncture head 101 are blocked.

[0034] Gas generated by fluid source 203 is delivered to elastic cavity 301 and second pipe 302 via inflation tube 2 and first pipe 3. Quick connection with connecting tube 1 and puncture head 101 is achieved by plug connector 303 without complicated debugging. The test results can be directly judged by observing whether elastic cavity 301 expands, without relying on precision instruments. It has a high degree of visualization and can quickly check for blockages in connecting tube 1 and puncture head 101. It has a low operation threshold and is suitable for rapid on-site testing scenarios.

[0035] Based on Embodiment 2, when using the device, the user needs to connect the connecting tube 1 and the puncture head 101 to one side of the fixed head 4 for testing. At this time, the puncture head 101 is inserted into the inside of the plug 406. The plug 406 is used to increase the sealing between the puncture head 101 and the sleeve 402, so that it passes through the plug 406 and connects with the sleeve 402. At this time, the user can start the fluid source 203. The fluid source 203 generates gas and passes it to the inside of the inflation tube 2. The gas inside the inflation tube 2 passes through the fixed head 4, the connecting tube 1 and the puncture head 101 in sequence to the inside of the sleeve 402. At this time, the connecting tube 1 and the puncture head 101 without blockage can push the top 404 inside the sleeve 402 outward to a certain distance, thereby driving the slide rod 405 outward to a certain distance, so as to observe whether a blockage has occurred.

[0036] The fixed head 4, in conjunction with the plug 406, enhances the sealing of the connection between the puncture head 101 and the sleeve 402, preventing gas leakage from affecting the test results. After gas is supplied through the fluid source 203, the blockage is determined by the displacement of the slide rod 405 pushed by the top head 404, i.e., by the distance the top head 404 is pushed relative to the fixed head 4. The mechanical transmission detection method is highly responsive and can accurately distinguish the degree of blockage. Furthermore, the sleeve 402, top head 404, and other components have a robust structure, are wear-resistant and interference-resistant, and can operate stably for a long time, making them suitable for application scenarios with high detection accuracy requirements.

[0037] Based on Embodiment 3, when using the device, the user can connect the connecting pipe 1, which needs to be tested, to one side of the inflation pipe 2. At this time, the user can start the fluid source 203. The fluid source 203 generates gas and passes it to the inside of the inflation pipe 2. The gas inside the inflation pipe 2 flows out through the connecting pipe 1 and the puncture head 101 at its end. The unblocked puncture head 101 will emit a whistling sound. The sleeve 5 is used to increase the sound intensity and isolate the adjacent sound. The sound insulation cotton 501 is used to further isolate the sound. At this time, the noise monitor 502 can monitor the sound generated by the puncture head 101 to determine if the puncture head 101 is blocked.

[0038] The gas generated by the fluid source 203 is delivered to the connecting pipe 1 and the puncture head 101 through the inflation pipe 2. The puncture head 101 that is not blocked will emit a whistle. The sleeve 5 can enhance the sound intensity, and the sound insulation cotton 501 can effectively isolate the sound interference of adjacent puncture heads 101. With the help of the noise monitor 502, the blocked parts can be quickly identified. This design does not require manual observation of each one and can realize the synchronous batch detection of multiple puncture devices, which greatly improves the detection efficiency. Moreover, the combination of sound signal and noise monitor 502 has strong anti-environment interference ability and high reliability of detection results. It is suitable for the blockage detection needs of large-scale production scenarios. The noise monitor 502 can be model CRY2110.

[0039] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A device for detecting blockage in a puncture instrument, characterized in that, include: Connecting pipe; A puncture head is located at the bottom end of the connecting tube, and the puncture head is connected to the connecting tube to form a detection flow path; An inflation mechanism, connected to the top end of the connecting pipe, is used to introduce detection fluid into the detection flow path; A detection mechanism, located between the connecting tube and the puncture head, is used to acquire changes in physical parameters related to the detection fluid to determine whether the puncture head is blocked.

2. The puncture device for detecting blockage according to claim 1, characterized in that, The inflation mechanism includes a support assembly, a fluid source disposed on the support assembly, and an inflation pipe connected to the outlet end of the fluid source. The inflation pipe is connected to the top end of the connecting pipe.

3. The puncture device for detecting blockage according to claim 2, characterized in that, The support assembly includes a support base, a mounting plate fixed on the support base, and a clamping frame fixed on the mounting plate, wherein the fluid source is fixed on the clamping frame.

4. The puncture device for detecting blockage according to claim 2, characterized in that, The fluid source is an air pump.

5. The puncture device for detecting blockage according to claim 2, characterized in that, The testing mechanism includes a first testing component, which includes: The first pipe has its top end connected to the outlet end of the inflation pipe; An elastic cavity, the top of which is connected to the bottom of the first pipe; The second pipe has its top end connected to the bottom end of the elastic cavity, and its bottom end connected to the top end of the connecting pipe. The elastic cavity is configured to produce visible deformation when the puncture head becomes blocked.

6. The puncture device for detecting blockage according to claim 5, characterized in that, The bottom end of the second pipe is also provided with a connector, which has an annular protrusion. The connector is detachably connected to the inner side of the top end of the connecting pipe through the annular protrusion.

7. The puncture device for detecting blockage according to claim 3, characterized in that, The testing mechanism includes a second testing component, the second testing component comprising: A fixing head is fixed to the outlet end of the inflation tube; A support frame is provided on one side of the bottom end of the support base; A sleeve, one end of which is fixed to the support frame; A connecting block is located at the end of the sleeve furthest from the support frame; A sliding rod is slidably mounted on the connecting block, with its top end located inside the sleeve; The top end is located at the bottom end of the slide rod.

8. The puncture device for detecting blockage according to claim 7, characterized in that, The top of the sleeve is provided with a plug, and the piercing head is inserted into the inside of the plug.

9. The puncture device for detecting blockage according to claim 3, characterized in that, The testing mechanism includes a third testing component, which includes: A sleeve is fixedly installed on one side of the bottom end of the support base and sleeved over the outside of the connecting tube and the puncture head; A noise monitor is installed inside the bottom end of the cannula to collect fluid noise signals from the puncture head.

10. A puncture device for detecting blockage according to claim 9, characterized in that, The outer circumferential wall of the sleeve is wrapped with sound-insulating cotton.

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