A device for detecting a blockage

Abstract

The technical scheme belongs to the technical field of medical equipment and specifically relates to a kind of anti-blocking detection device, including rack;Pipe clamping device is used to clamp the positioning of several catheter puncture needle holder;Air blowing device, including sliding on the sliding table of the rack, leakage detection element is arranged on the side of sliding table and sliding drive element, when sliding drive element drives sliding table to move, drive leakage detection element to be close to pipe clamping device, make the air blowing end of leakage detection element abut on the air hole of puncture needle holder, pipe clamping device clamps the puncture needle holder of multiple catheters to be measured, sliding drive element drives sliding table to slide, drive leakage detection element to move synchronously, when leakage detection element approaches catheter end, its air blowing end is accurately abutted to the pipe hole of puncture needle holder, leakage detection element automatically blows gas into catheter interior, real-time monitoring pressure change or flow, system can automatically judge the sealing property between catheter and needle hole, improve production efficiency, reduce labor cost, improve consistency and reliability of detection result.

Description

Technical Field

[0001] This technical solution relates to the field of medical equipment technology, specifically to an anti-blocking detection device. Background Technology

[0002] Blood collection needles are mainly used to quickly puncture the skin to collect blood for various medical tests such as blood glucose monitoring and routine blood tests, in order to understand the physiological and pathological conditions of the human body. They are widely used in the medical industry.

[0003] Existing blood collection needles typically consist of a needle handle, tubing, flow stop clamp, puncture needle seat, needle core, spring, and butterfly blade. The needle core and puncture needle seat are glued to the two ends of the tubing, and the sealing performance after installation is tested. The puncture needle seat has an air vent, which is used to blow air into the tubing through one end of the puncture needle seat. Currently, the air blowing operation requires a worker to pick up the needle, align the nozzle of the air blowing device with the air vent, blow air, judge the result, and put the needle down. This relies on manual intervention and is cumbersome, resulting in low production efficiency and high production costs. Utility Model Content

[0004] To address the problem that the sealing test of the needle core and catheter after adhesive bonding in existing blood collection needles relies on manual operation, resulting in low production efficiency and high production costs, a blocking detection device is provided.

[0005] The purpose of this technical solution is achieved as follows: An anti-blocking detection device, comprising: frame; A clamping device for holding and positioning the puncture needle hub of several catheters; The air blowing device includes a slide table that slides on the frame, a leak detection element disposed on the side of the slide table, and a sliding drive element. When the sliding drive element drives the slide table to move, it moves the leak detection element closer to the clamping device, so that the air blowing end of the leak detection element abuts against the air passage of the puncture needle seat for air blowing into the catheter for detection.

[0006] Through the above technical solution, when a plugging detection device is in normal use, the clamping device first clamps and fixes the puncture needle seats of multiple catheters to be tested. The sliding drive component in the air blowing device drives the slide table to slide along the frame towards the clamping device, causing the leak detection component to move synchronously. When the leak detection component approaches the end of the catheter, its air blowing end accurately abuts against the tube hole of the puncture needle seat. After the abutment is completed, the leak detection component automatically blows gas into the catheter. By monitoring the changes in air pressure or flow rate in real time, the system can automatically determine whether the seal between the catheter and the needle hole is qualified and identify unqualified products. The device completely replaces manual visual inspection or manual inspection, realizes the automation of the inspection process, improves production efficiency, reduces labor costs, and improves the consistency and reliability of the inspection results.

[0007] Preferably, the leak detection element includes: A sliding sleeve is fixed on the slide table, and the slide table has mounting holes that match the sliding sleeve. The air spindle is slidably inserted into the sliding sleeve; An abutting head, which is disposed at the front end of the air spindle; and An elastic element is sleeved on the air mandrel, which has a protruding abutment portion. The two ends of the elastic element abut against the sliding sleeve and the abutment portion, respectively. Its elastic force pushes the air mandrel to slide outward along the mounting hole, so that the abutment head elastically abuts against the puncture needle seat of the catheter.

[0008] Through the above technical solution, the leak detection component is fixed to the slide table by a sliding sleeve and guided by the air mandrel. Under the action of the elastic element, the abutting head at the front end of the air mandrel always maintains an outward sliding tendency, so that when the leak detection component approaches the guide tube, the abutting head first contacts the puncture needle seat port, forcing the air mandrel to overcome the elastic force of the elastic element and retract, providing collision buffer, and increasing the abutting pressure so that the abutting head is tightly and flexibly sealed on the puncture needle seat. The rear end of the air mandrel can be connected to the detection equipment and the air blowing equipment. The elastic abutting design can compensate for positional tolerances, provide a stable seal, avoid hard collision damage, and further improve the reliability and consistency of the detection.

[0009] Preferably, the air spindle is provided with a retaining spring and a washer for the elastic element to abut against it. The retaining spring is engaged with the rear end of the air spindle to prevent the air spindle from disengaging.

[0010] Through the above technical solution, the core function of the retaining ring is to set a reliable rear limit to ensure that the air core shaft will not accidentally pop out from the back of the sliding sleeve when the elastic element is in its maximum extension state. The second washer provides a stable and precisely positioned abutment point for the elastic element, ensuring that the elastic force acts stably along the axis of the air core shaft, preventing the spring from tilting or shifting during operation, and ensuring the consistency of the abutment pressure and the smoothness of the action.

[0011] Preferably, the abutting head has a pressing ring surface, and the inclination direction of the pressing ring surface causes the end of the abutting head to taper outward.

[0012] Through the above technical solution, the tapered design of the front end of the contact rubber head enables rapid self-positioning through the inclined guide when contacting the puncture needle seat.

[0013] Preferably, the leak detection element is equipped with a pressure detector for monitoring the pressure intensity.

[0014] Through the above technical solution, the air pressure detector monitors the changes in air pressure inside the tube in real time during the air blowing test. When the measured air pressure is low, there is a large gap in the adhesive between the needle core and the tube, which leads to gas leakage. When the measured air pressure gradually increases, it indicates that the adhesive between the needle core and the tube is stable.

[0015] Preferably, the tube clamping device includes: A pipe clamping assembly 1 includes an upper clamp disposed on a pipe clamping frame 1, an upper clamp sliding on the pipe clamping frame 1, and a driving component 1; The second clamping assembly includes a second clamping frame corresponding to the first clamping frame, a lower clamp sliding on the second clamping frame, and a second driving member. The first driving member and the second driving member drive the upper clamp and the lower clamp to move respectively, so that the upper clamp and the lower clamp are relatively close to each other to form a clamping and positioning of the puncture needle seat.

[0016] Through the above technical solution, the first driving component drives the upper clamp to press down, and the second driving component drives the lower clamp to rise. The relative movement of the two forms a vertical centering clamping force, which firmly locks the puncture needle seat, avoids damage to the catheter tubing, ensures the accuracy of detection and positioning, and enables multi-station batch synchronous operation, thereby improving detection efficiency.

[0017] Preferably, the upper clamp includes an upper base, an upper toothed section one disposed on the upper base, an upper pressure block, an upper toothed section two disposed on the upper base, and an upper toothed block; the lower clamp includes a lower base, a lower toothed section one disposed on the lower base, a lower pressure block, a lower toothed section two disposed on the lower base, and a lower toothed section three disposed on the lower base. When the upper clamp and the lower clamp are close together, the first upper toothed section and the first lower toothed section engage to clamp the front end of the puncture needle seat, the second upper toothed section engages to clamp the rear end of the puncture needle seat, and the third upper toothed section engages to clamp the catheter; the upper pressure block and the lower pressure block cooperate to press and position the puncture needle seat, and the second upper toothed section is used to limit the middle part of the puncture needle seat.

[0018] Through the above technical solution, the front end of the puncture needle seat is locked in a V-shape by the upper toothed section 1 and the lower toothed section 1, the middle part of the puncture needle seat is provided with main pressure by the upper pressure block and the lower pressure block, the upper toothed section 2 limits and prevents rotation, and the tail end is clamped by the upper toothed block and the lower toothed section 2. At the same time, the upper toothed block and the lower toothed section 3 limit the catheter to prevent it from falling off, thereby achieving the constraint of the puncture needle seat and the catheter.

[0019] Preferably, it further includes: The fixture has several clamping positions for assembling blood collection needles. The fixture includes a clamping plate with a clamping groove at the top for clamping the catheter. The fixture moves via a conveyor rail for feeding.

[0020] Through the above technical solution, the fixture tooling realizes the batch loading of conduits through the multi-clamping tube groove clamping plate, and is accurately transported to each processing station by the conveyor rail.

[0021] The key and beneficial technical effects of this technical solution compared to existing technologies are: This technical solution uses a clamping device to rigidly clamp the puncture needle seat in multiple stages, and in conjunction with a leak detection device, automatically blows gas into the inside of the catheter to achieve precise docking between the catheter and the blowing end; the air pressure detector monitors the changes in blowing pressure in real time, automatically determines the adhesive seal and the status of pipeline blockage, automating the inspection to replace manual inspection, improving production efficiency and reducing labor costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this embodiment; Figure 2 This embodiment Figure 1 Another perspective illustration; Figure 3 This is a partial explosion diagram of the leak detection component in the embodiment; Figure 4 This is a partial structural diagram of the clamping device in the embodiment; Figure 5 This is a planar perspective schematic diagram of the upper and lower clamps in the embodiment; Figure 6 This is a partial exploded view of the upper and lower clamps in the embodiment.

[0023] Reference numerals: 1. Frame; 2. Pipe clamping device; 21. Pipe clamping assembly one; 211. Pipe clamping frame one; 212. Upper clamp; 2121. Upper base; 2122. Upper toothed section one; 2123. Upper pressure block; 2124. Upper toothed section two; 2125. Upper toothed block; 213. Driving component one; 22. Pipe clamping assembly two; 221. Pipe clamping frame two; 222. Lower clamp; 2221. Lower base; 2222. Lower toothed section one; 2223. Lower pressure block ; 2224, Lower tooth section two; 2225, Lower tooth section three; 223, Drive component two; 3, Air blowing device; 31, Slide table; 32, Leak detection component; 321, Sliding sleeve; 322, Air core shaft; 333, Abutting rubber head; 334, Elastic component; 33, Sliding drive component; 4, Mounting hole; 6, Abutting part; 71, Snap ring one; 72, Gasket two; 8, Pressing ring surface; 9, Fixture tooling; 91, Clamping plate; 100, Guide tube; 200, Puncture needle seat. Detailed Implementation

[0024] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings.

[0025] Example: See Figure 1 and Figure 2A clog prevention detection device includes a frame 1, a clamping device 2, and an air blowing device 3. The air blowing device 3 includes a slide table 31, leak detection elements 32, and a sliding drive element 33. The slide table 31 is slidably connected to the top of the frame 1 via a slide rail and groove structure. The sliding drive element 33 is located behind the slide table 31 and is fixedly mounted on the frame 1. Several leak detection elements 32 are mounted on the front side of the slide table 31 away from the sliding drive element 33. The device also includes a clamping fixture 9, which is installed along a conveyor belt. The rail is used for conveying and feeding, and it is located on the side of the clamping device 2 away from the blowing device 3. The clamping fixture 9 is provided with several clamping positions for assembling blood collection needles. The clamping fixture 9 includes a clamping plate 91, and the top of the clamping plate 91 has a clamping groove for clamping the catheter 100. The sliding drive 33 drives the slide table 31 to move, and the slide table 31 drives several leak detection components 32 to move synchronously, so that several leak detection components 32 correspond one-to-one with several clamping positions and approach each other, thereby simultaneously detecting multiple stations.

[0026] See Figure 3 The leak detection component 32 includes a sliding sleeve 321, a pneumatic spindle 322, an abutment head 333, and an elastic element 334. A mounting block protrudes from the upper end face of the front end of the slide table 31, and has several mounting holes 4 along its length. Each mounting hole 4 corresponds to one of the leak detection components 32. The sliding sleeve 321 is engaged in the corresponding mounting hole 4 and fixed to the side wall of the mounting block of the slide bar by bolts. The pneumatic spindle 322 slides through the sliding sleeve 321. The pneumatic spindle 322 is equipped with a retaining spring 71, which is engaged at the rear end of the pneumatic spindle 322 to prevent the pneumatic spindle 322 from moving forward and disengaging from the sliding sleeve 321. 2 is also fitted with a second gasket 72, which is located on the other side of the mounting block away from the first retaining spring 71. The elastic element 334 is fitted on the air spindle 322. The front end of the air spindle 322 has a protruding abutment 6. The two ends of the elastic element 334 abut against the second gasket 72 and the abutment 6 respectively. Its elastic force pushes the air spindle 322 to have a tendency to slide outward along the mounting hole 4. The abutting head 333 is fitted and fixed to the front end of the air spindle 322. The abutting head 333 has a pressing ring surface 8, which is located at the outer end of the abutting head 333 away from the abutment 6. The inclined direction of the pressing ring surface 8 makes the end of the abutting head 333 gradually tapered outward.

[0027] Each leak detection element 32 is equipped with a pressure detector to monitor the pressure intensity. The pressure detector monitors the pressure change in the tube 100 in real time during the air blowing test. When the measured pressure is low, it indicates that there is a large leak at the adhesive joint between the needle core and the tube 100, resulting in gas leakage. When the measured pressure gradually increases, it indicates that the adhesive joint between the needle core and the tube 100 is stable.

[0028] See Figure 4The pipe clamping device 2 includes a pipe clamping assembly 21 and a pipe clamping assembly 22. The pipe clamping assembly 21 includes a pipe clamping frame 211, an upper clamp 212, and a driving member 213. The upper clamp 212 is located above the pipe clamping assembly 22 and is slidably connected to the pipe clamping frame 211. The sliding direction is set in the vertical direction. The driving member 213 is installed on the side end face of the pipe clamping frame 211 away from the pipe clamping assembly 22. Its output end is connected to the upper clamp 212 and is used to drive the upper clamp 212 to move up and down.

[0029] The second pipe clamping assembly 22 includes a second pipe clamping frame 221, a lower clamp 222, and a second driving component 223. The lower clamp 222 is correspondingly arranged with the upper clamp 212. The lower clamp 222 is slidably connected to the second pipe clamping frame 221, and its sliding direction is parallel to the sliding direction of the upper clamp 212. The second driving component 223 is installed on the lower end face of the second pipe clamping frame 221 away from the upper clamp 212, and its output end is connected to the lower clamp 222 for driving the lower clamp 222 to move up and down.

[0030] See Figure 5 and Figure 6 The upper clamp 212 includes an upper base 2121, an upper toothed section 1 2122, an upper pressure block 2123, an upper toothed section 2124, and an upper toothed block 2125. The upper toothed section 1 2122, the upper pressure block 2123, the upper toothed section 2124, and the upper toothed block 2125 are sequentially stacked and fixed horizontally below the upper base 2121. The lower clamp 222 includes a lower base 2221, a lower toothed section 1 2222, and a lower pressure block 2223. Lower toothed section 2224 and lower toothed section 3 2225, toothed section 1 2222, lower pressure block 2223, lower toothed section 2224 and lower toothed section 3 2225 are sequentially stacked and fixed above the lower base 2221 in a horizontal direction. Upper toothed section 1 2122 and lower toothed section 1 2222 are arranged opposite each other and are both close to the air blowing device 3. Upper pressure block 2123 and lower pressure block 2223 are arranged opposite each other. The material of upper pressure block 2123 can be an elastic material. The top of lower pressure block 2223 has a groove 1 that matches the outline of puncture needle seat 200. The lower end of upper toothed section 2124 has a groove 2 that matches the outline of puncture needle seat 200. Lower toothed section 2224 and lower toothed section are arranged corresponding to the position of upper toothed block 2125. When the upper clamp 212 and lower clamp 222 move closer to each other, the teeth of upper toothed section 1 2122 and lower toothed section 1 2222... The upper and lower pressure blocks 2123 and 2223 are engaged to clamp the front end of the puncture needle seat 200, and the upper toothed section 2124 is engaged to clamp the middle part of the puncture needle seat 200. The teeth between the upper toothed block 2125 and the lower toothed section 2224 are engaged to clamp the rear end of the puncture needle seat 200. The teeth between the upper toothed block 2125 and the lower toothed section 2225 are engaged to clamp the catheter 100.

[0031] The specific work process of this plan is as follows: This technical solution uses a clamping device 2 to first clamp and fix the puncture needle seat 200 of multiple catheters 100 to be tested. The sliding drive component 33 in the air blowing device 3 drives the slide table 31 to slide along the frame 1 towards the clamping device 2, which in turn drives the leak detection component 32 to move synchronously. When the leak detection component 32 approaches the end of the catheter 100, its air blowing end accurately abuts against the tube hole of the puncture needle seat 200. After the abutment is completed, the leak detection component 32 automatically blows gas into the catheter 100. By monitoring the changes in air pressure or flow rate in real time, the system can automatically determine whether the seal between the catheter 100 and the needle hole is qualified and identify unqualified products. The device completely replaces manual visual inspection or manual inspection, realizes the automation of the inspection process, improves production efficiency, reduces labor costs, and improves the consistency and reliability of the inspection results.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this technical solution. Various changes and modifications can be made to this technical solution without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed technical solution. The scope of protection of this technical solution is defined by the appended claims and their equivalents.

Claims

1. A blockage detection device, characterized in that, include: Rack (1); The clamping device (2) is used to clamp and position the puncture needle seat of several catheters; The air blowing device (3) includes a slide (31) that slides on the frame (1), a leak detection element (32) disposed on the side of the slide (31), and a sliding drive element (33). When the sliding drive element (33) drives the slide (31) to move, it drives the leak detection element (32) to approach the tube clamping device (2), so that the air blowing end of the leak detection element (32) abuts against the air passage of the puncture needle seat for air blowing into the catheter for detection.

2. The anti-blocking detection device according to claim 1, characterized in that: The leak detection element (32) includes: A sliding sleeve (321) is fixed on the slide table (31), and the slide table (31) has a mounting hole (4) that matches the sliding sleeve (321); The air mandrel (322) is slidably inserted into the sliding sleeve (321); Abutting head (323) is disposed at the front end of the air spindle (322); and An elastic element (324) is sleeved on the air spindle (322), the air spindle (322) has a protruding abutment (6), and the two ends of the elastic element (324) abut against the sliding sleeve (321) and the abutment (6) respectively. Its elastic force pushes the air spindle (322) to slide outward along the mounting hole (4), so that the abutting rubber head (323) elastically abuts against the puncture needle seat of the catheter.

3. The anti-blocking detection device according to claim 2, characterized in that: The air spindle (322) is provided with a retaining spring (71) and a gasket (72) for the elastic element (324) to abut against. The retaining spring (71) is engaged with the rear end of the air spindle (322) to prevent the air spindle (322) from disengaging.

4. The anti-blocking detection device according to claim 2, characterized in that: The abutting head (323) has a pressing ring surface (8), and the inclination direction of the pressing ring surface (8) causes the end of the abutting head (323) to be gradually tapered outward.

5. The anti-blocking detection device according to claim 1, characterized in that: The leak detection component (32) is equipped with a pressure detector for monitoring the pressure intensity.

6. The anti-blocking detection device according to claim 1, characterized in that: The clamping device (2) includes: The first pipe clamping assembly (21) includes a pipe clamping frame (211) disposed thereon, an upper clamp (212) sliding on the pipe clamping frame (211) and a drive member (213); The second clamping assembly (22) includes a second clamping frame (221) corresponding to the first clamping frame (211), a lower clamp (222) sliding on the second clamping frame (221), and a second driving member (223). The first driving member (213) and the second driving member (223) respectively drive the upper clamp (212) and the lower clamp (222) to move, so that the upper clamp (212) and the lower clamp (222) are relatively close to each other to form a clamping and positioning of the puncture needle seat.

7. The anti-blocking detection device according to claim 6, characterized in that: The upper clamp (212) includes an upper base (2121), an upper toothed section one (2122) disposed on the upper base (2121), an upper pressure block (2123), an upper toothed section two (2124), and an upper toothed block (2125). The lower clamp (222) includes a lower base (2221), a lower toothed section one (2222) disposed on the lower base (2221), a lower pressure block (2223), a lower toothed section two (2224), and a lower toothed section three (2225). When the upper clamp (212) and the lower clamp (222) are close together, the upper tooth segment one (2122) and the lower tooth segment one (2222) engage to clamp the front end of the puncture needle seat, the upper tooth block (2125) and the lower tooth segment two (2224) engage to clamp the rear end of the puncture needle seat, and the upper tooth block (2125) and the lower tooth segment three (2225) engage to clamp the catheter; the upper pressure block (2123) and the lower pressure block (2223) cooperate to press and position the puncture needle seat, and the upper tooth segment two (2124) is used to limit the middle part of the puncture needle seat.

8. The anti-blocking detection device according to claim 1, characterized in that, Also includes: The fixture (9) is provided with a number of clamping positions for assembling blood collection needles. The fixture (9) includes a clamping plate (91). The top of the clamping plate (91) has a clamping groove for clamping the catheter. The fixture (9) moves via a conveyor rail for feeding materials.

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