A pediatric puncture device airtightness detection device

Abstract

The present invention relates to the technical field of detection devices, and particularly to an airtightness detection device for pediatric puncture devices, comprising: a base, a detection tank, and a connecting pipe; both the base and the detection tank are fixedly connected to the base; a sealing member is provided at the detection port; by providing a detection tank and a detection box, the space inside the detection box is separated by a partition plate, and the space between the partition plates is communicated with the detection tank through a connecting pipe. Thus, when the airtightness of the pediatric puncture device inserted between the partition plates is insufficient and leakage occurs, the air pressure in the detection tank will decrease. Therefore, the present invention can detect multiple pediatric puncture devices at one time. At the same time, an installation plate is provided in the detection box to divide the space between the partition plates into upper and lower parts. During the process of pulling out the pediatric puncture device, the sealing plate seals the inlet on the installation plate. Thus, after the pediatric puncture device is pulled out, the gas below the installation plate will not leak, which may cause the air pressure in the detection tank to decrease and affect the detection of the detection tank.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and particularly to an airtightness detection device for pediatric puncture devices. Background Art

[0002] Puncture devices are mainly used for puncturing specific parts of the human body to obtain tissue samples, inject drugs, or perform other medical operations. The basic structure of a puncture device usually includes a puncture needle, a needle hub, a handle, etc. The puncture needle is a key component and needs to have sufficient hardness and sharpness to smoothly penetrate the skin, tissues, etc.; the needle hub is used to connect the puncture needle and the handle to ensure a firm connection between the two. The handle facilitates the medical staff to hold and operate, and some handles are designed with anti-slip textures to enhance the operation stability;

[0003] Compared with adults, the various parts of a child's body are smaller, and the structures such as the abdominal cavity and bones are smaller. Therefore, pediatric puncture devices are usually thinner and shorter than adult instruments to adapt to the smaller body cavities and thinner abdominal walls of children;

[0004] Pediatric puncture devices usually use air pressure for airtightness detection. The pediatric puncture device is inserted into the detection device, and the detection device inflates, stabilizes the pressure, detects, and releases the pressure to detect the airtightness of a single pediatric puncture device. The whole process takes half a minute to one minute, and the detection efficiency is low, which is not suitable for production lines, thus causing limitations.

[0005] Therefore, we propose an airtightness detection device for pediatric puncture devices. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides an airtightness detection device for pediatric puncture devices, which overcomes the deficiencies of the prior art and aims to solve the problems in the background art.

[0007] To achieve the above object, the present invention provides the following technical solution: An airtightness detection device for pediatric puncture devices, comprising:

[0008] A base, a detection tank, a detection box, and a connecting pipe; the detection box and the detection tank are both fixedly connected to the base; the detection box is provided with detection ports at uniform intervals; sealing members are provided on the detection ports;

[0009] Partition plates are fixedly connected to the detection box at uniform intervals; the partition plates are located between the detection ports; both ends of the connecting pipe are connected to the detection box and the detection tank respectively; a first air pressure sensor is fixedly connected to the detection tank; an input pipe is provided on the detection tank; the input pipe is connected to a high-pressure gas source.

[0010] Preferably, a mounting plate is fixedly connected inside the detection box; the spacer plate is located on the upper and lower sides of the mounting plate; an inlet is formed on the mounting plate; a rubber sealing ring is fixedly connected inside the inlet; a sealing plate is rotatably connected to the mounting plate; a sealing electric push rod is hinged to the mounting plate; and the output end of the sealing electric push rod is hinged to the sealing plate.

[0011] Preferably, second air pressure sensors are uniformly fixedly connected inside the detection box; the second air pressure sensors are located above the mounting plate; and an input pipe is also arranged on the detection box.

[0012] Preferably, the connecting pipes are distributed in a dispersed manner on the detection tank.

[0013] Preferably, electromagnetic valves are fixedly connected and communicated on the connecting pipes.

[0014] Preferably, the sealing member is in a circular tube shape.

[0015] Preferably, a mounting ring is fixedly connected to the detection box; support rods are uniformly fixedly connected to the sealing member; the support rods are arranged circumferentially along the axis of the sealing member; a first support ring is slidably connected to the mounting ring; a support electric push rod is connected between the first support ring and the mounting ring; and a first stretching rod is hinged between the first support ring and the support rod.

[0016] Preferably, a second support ring is slidably connected to the mounting ring; a support electric push rod is also arranged between the second support ring and the mounting ring; and a second stretching rod is hinged between the second support ring and the support rod.

[0017] By setting the sealing member in a circular tube shape, the contact surface between the pediatric puncture device and the sealing member is larger, improving the sealing effect. At the same time, the first support ring and the second support ring are set to pull the support rods on the sealing member, facilitating the insertion of the pediatric puncture device, and avoiding the situation where the pediatric puncture device is difficult to insert due to the large contact surface and large friction between the sealing member and the pediatric puncture device.

[0018] The beneficial effects of the present invention:

[0019] 1. By setting the detection tank and the detection box in the present invention, the space inside the detection box is separated by the spacer plate, and then the space between the spacer plates is communicated with the detection tank through the connecting pipes. Thus, when the airtightness of the pediatric puncture device inserted between the spacer plates is insufficient and airtightness leakage occurs, the air pressure in the detection tank will decrease, so that the present invention can detect multiple pediatric puncture devices at one time.

[0020] 2. The present invention provides an installation plate inside the detection box, which divides the space between the spacer plates into upper and lower parts. During the process of pulling out the pediatric puncture device, the sealing plate seals the inlet on the installation plate. Therefore, after the pediatric puncture device is pulled out, the gas below the installation plate will not leak, thus preventing the air pressure in the detection tank from decreasing and affecting the detection of the detection tank.

[0021] 3. By setting the seal as a circular tube shape, the present invention increases the contact area between the pediatric puncture device and the seal, improving the sealing effect. At the same time, a first support ring and a second support ring are provided to pull the support rod on the seal, facilitating the insertion of the pediatric puncture device. There will be no situation where the large contact area between the seal and the pediatric puncture device leads to a large frictional force and makes it difficult to insert the pediatric puncture device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the present invention;

[0023] Figure 2 is Figure 1 an enlarged view of part A in

[0024] Figure 3 is a cross-sectional view of the detection box, installation plate, installation ring and sealing plate in the present invention;

[0025] Figure 4 is Figure 3 an enlarged view of part B in

[0026] Figure 5 is a cross-sectional view of the detection tank in the present invention.

[0027] In the figure: 1, base; 11, detection tank; 12, detection box; 13, connecting pipe; 14, detection port; 15, seal; 16, spacer plate; 17, first air pressure sensor; 18, input pipe; 19, installation plate; 2, inlet; 21, sealing plate; 22, sealing electric push rod; 23, second air pressure sensor; 3, electromagnetic valve; 4, installation ring; 41, support rod; 42, first support ring; 43, support electric push rod; 44, first tension rod; 45, second support ring; 46, second tension rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1: Refer to the attached drawings of the specification Figure 1 , 2, 3, 4, and 5, a pediatric puncture device airtightness detection device, comprising:

[0030] A base 1, a detection tank 11, a detection box 12, and a connecting pipe 13; the detection box 12 and the detection tank 11 are both fixedly connected to the base 1; the detection box 12 is provided with detection ports 14 at uniform intervals; a sealing member 15 is provided on the detection ports 14;

[0031] Partition plates 16 are fixedly connected in the detection box 12 at uniform intervals; the partition plates 16 are located between the detection ports 14; both ends of the connecting pipe 13 are connected to the detection box 12 and the detection tank 11 in communication; a first pressure sensor 17 is fixedly connected in the detection tank 11; an input pipe 18 is provided on the detection tank 11; the input pipe 18 is connected to a high-pressure gas source.

[0032] In the present invention, a mounting plate 19 is fixedly connected in the detection box 12; the partition plates 16 are located on both the upper and lower sides of the mounting plate 19; an access port 2 is provided on the mounting plate 19; a rubber sealing ring is fixedly connected in the access port 2; a sealing plate 21 is rotatably connected to the mounting plate 19; a sealing electric push rod 22 is hinged to the mounting plate 19; the output end of the sealing electric push rod 22 is hinged to the sealing plate 21.

[0033] In the present invention, second pressure sensors 23 are fixedly connected in the detection box 12 uniformly; the second pressure sensors 23 are located above the mounting plate 19; an input pipe 18 is also provided on the detection box 12.

[0034] In the present invention, the connecting pipes 13 are distributed in a dispersed manner on the detection tank 11.

[0035] In the present invention, an electromagnetic valve 3 is fixedly connected and communicated with the connecting pipe 13.

[0036] In the present invention, the input pipe 18 is connected to an external gas source. When performing airtightness detection on a pediatric puncture device, first insert the pediatric puncture device into all the detection ports 14, so that the sealing member 15 is sleeved on the outside of the pediatric puncture device, and the pediatric puncture device penetrates into the access port 2. Subsequently, high-pressure gas is filled into the detection tank 11 and the detection box 12 to make the pressure in the detection tank 11 and the detection box 12 reach the detection pressure. Since the spaces between adjacent partition plates 16 in the detection tank 11 and the detection box 12 are connected through the connecting pipe 13, when the airtightness of the pediatric puncture device is insufficient and the pressure in the detection tank 11 drops, the first pressure sensor 17 in the detection tank 11 detects the pressure drop, so as to detect that among the pediatric puncture devices being detected, when there is a pediatric puncture device with insufficient airtightness, then all the electromagnetic valves 3 on the connecting pipes 13 are closed, and then the first electromagnetic valve 3 is opened. When the first pediatric puncture device has insufficient airtightness, after the first electromagnetic valve 3 is opened, the pressure detected by the first pressure sensor 17 will drop, otherwise the pressure remains unchanged; all the electromagnetic valves 3 are opened and closed in sequence to detect the position of the pediatric puncture device with insufficient airtightness;

[0037] In the present invention, during the detection process of pediatric puncture devices, the staff can stagger the insertion times of the pediatric puncture devices, so that the detection times of the pediatric puncture devices are staggered. Thus, when a part of the pediatric puncture devices are detected, another part of the pediatric puncture devices start to be detected. After the replacement of the detected pediatric puncture devices is completed, the other part of the pediatric puncture devices are just detected, thereby improving the efficiency.

[0038] A second air pressure sensor 23 is arranged in the detection box 12, and the second air pressure sensor 23 is located above the mounting plate 19, so that the second air pressure sensor 23 can detect the air pressure in real time. In the present invention, when replacing the pediatric puncture device on the detection box 12, the pediatric puncture device is pulled out from the detection box 12. When the lower end of the pediatric puncture device moves above the mounting plate 19, the sealing electric push rod 22 pushes the sealing plate 21, so that the sealing plate 21 seals the inlet 2. Then, the pediatric puncture device is pulled out from the detection port 14. At this time, the air above the mounting plate 19 leaks from the detection port 14, and the air pressure above the mounting plate 19 decreases. The staff inserts the undetected pediatric puncture device into the detection port 14, and the pediatric puncture device blocks the detection port 14. Then, air is injected into the space above the mounting plate 19 in the detection box 12 to increase the air pressure. After the air pressure above the mounting plate 19 is the same as the air pressure below, the sealing plate 21 is opened again, and the pediatric puncture device passes through the inlet 2, thus completing the replacement of the pediatric puncture device. Therefore, when the pediatric puncture device is pulled out from the detection port 14, it will not cause a decrease in the air pressure in the detection tank 11.

[0039] In the present invention, the connecting pipes 13 are distributed in a dispersed manner on the detection tank 11, so that the lower ends of the connecting pipes 13 are connected to the detection tank 11 close to each other, thereby reducing the volume of the detection tank 11, and preventing the situation that when the volume of the detection tank 11 is too large and the pediatric puncture device leaks, the change in air pressure caused is not obvious in the large-volume detection tank 11, resulting in inaccurate detection.

[0040] In the present invention, by providing the detection tank 11 and the detection box 12, the space in the detection box 12 is separated by the partition plate 16, and the space between the partition plates 16 is communicated with the detection tank 11 through the connecting pipes 13. Thus, when the airtightness of the pediatric puncture device inserted between the partition plates 16 is insufficient and airtightness leakage occurs, it will cause a decrease in the air pressure in the detection tank 11. Therefore, the present invention can detect multiple pediatric puncture devices at one time. At the same time, a mounting plate 19 is arranged in the detection box 12 to divide the space between the partition plates 16 into upper and lower parts. During the process of pulling out the pediatric puncture device, the sealing plate 21 seals the inlet 2 on the mounting plate 19. Thus, after the pediatric puncture device is pulled out, the gas below the mounting plate 19 in the detection box 12 will not leak from the inlet 2, thereby preventing the situation that the air pressure in the detection tank 11 decreases and affects the detection of the detection tank 11.

[0041] Embodiment 2: On the basis of Embodiment 1, referring to the appended drawings of the specification Figure 3 、 4 and 5, in the present invention, the seal 15 is in the shape of a circular tube.

[0042] In the present invention, an installation ring 4 is fixedly connected to the detection box 12; support rods 41 are evenly and fixedly connected to the seal 15; the support rods 41 are arranged circumferentially along the axis of the seal 15; a first support ring 42 is slidably connected to the installation ring 4; a support electric push rod 43 is connected between the first support ring 42 and the installation ring 4; a first tension rod 44 is hinged between the first support ring 42 and the support rod 41.

[0043] In the present invention, a second support ring 45 is slidably connected to the installation ring 4; a support electric push rod 43 is also arranged between the second support ring 45 and the installation ring 4; a second tension rod 46 is hinged between the second support ring 45 and the support rod 41.

[0044] In the present invention, the seal 15 is set in the shape of a circular tube. Therefore, after the pediatric puncture device is inserted into the seal 15, there is more contact area between the circular tube-shaped seal 15 and the pediatric puncture device, and a better sealing effect can be achieved;

[0045] In the present invention, support rods 41 are arranged on the seal 15. Before the pediatric puncture device enters the seal 15, the two support electric push rods 43 pull the first support ring 42 and the second support ring 45, so that the first support ring 42 and the second support ring 45 pull the first tension rod 44 and the second tension rod 46. Thus, the first tension rod 44 and the second tension rod 46 simultaneously pull the support rod 41, causing the support rod 41 to pull the seal 15 outwards, expanding the seal 15. Then, the pediatric puncture device is inserted into the seal 15, and the support rod 41 returns to its original position. Therefore, it is convenient for the pediatric puncture device to be inserted into the seal 15, preventing the situation where the contact area between the cylindrical seal 15 and the pediatric puncture device is large, resulting in a large frictional force and difficulty in inserting the pediatric puncture device; by simultaneously pulling the first tension rod 44 and the second tension rod 46 with the first support ring 42 and the second support ring 45, the upper and lower ends of the support rod 41 can move outwards simultaneously, and the situation where one end moves inwards while the other end is pulled will not occur. At the same time, the support rod 41 can squeeze the seal 15, improving the sealing performance between the seal 15 and the pediatric puncture device;

[0046] In the present invention, by setting the seal 15 in the shape of a circular tube, the contact area between the pediatric puncture device and the seal 15 is larger, improving the sealing effect. At the same time, the first support ring 42 and the second support ring 45 are provided to pull the support rods 41 on the seal 15, facilitating the insertion of the pediatric puncture device, and preventing the situation where the contact area between the seal 15 and the pediatric puncture device is large, resulting in a large frictional force and difficulty in inserting the pediatric puncture device.

[0047] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed; the scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A pediatric puncture device airtightness detection device, characterized in that: including a base (1), a detection tank (11), a detection box (12) and a connecting pipe (13); the detection box (12) and the detection tank (11) are both fixedly connected to the base (1); the detection box (12) is provided with detection ports (14) at uniform intervals; a seal (15) is arranged on the detection ports (14); partition plates (16) are fixedly connected in the detection box (12) at uniform intervals; the partition plates (16) are located between the detection ports (14); both ends of the connecting pipe (13) are communicated with the detection box (12) and the detection tank (11) respectively; a first air pressure sensor (17) is fixedly connected in the detection tank (11); an input pipe (18) is arranged on the detection tank (11); the input pipe (18) is connected to a high-pressure gas source; a mounting plate (19) is fixedly connected in the detection box (12); the partition plates (16) are located on the upper and lower sides of the mounting plate (19); an access port (2) is opened on the mounting plate (19); a rubber sealing ring is fixedly connected in the access port (2); a sealing plate (21) is rotatably connected to the mounting plate (19); a sealing electric push rod (22) is hinged to the mounting plate (19); the output end of the sealing electric push rod (22) is hinged to the sealing plate (21); second air pressure sensors (23) are fixedly connected in the detection box (12) uniformly; the second air pressure sensors (23) are located above the mounting plate (19); an input pipe (18) is also arranged on the detection box (12); an electromagnetic valve (3) is fixedly connected and communicated with the connecting pipe (13).

2. The airtightness detection device for a pediatric puncture device according to claim 1, wherein: The connecting pipe (13) is distributed in a dispersed manner on the detection tank (11).

3. The airtightness detection device for a pediatric puncture device according to claim 2, wherein: The seal (15) is in the shape of a circular tube.

4. A pediatric puncture device airtightness detection device according to claim 3, characterized in that: A mounting ring (4) is fixedly connected to the detection box (12); support rods (41) are fixedly connected to the seal (15) uniformly; the support rods (41) are arranged circumferentially along the axis of the seal (15); a first support ring (42) is slidably connected to the mounting ring (4); a support electric push rod (43) is connected between the first support ring (42) and the mounting ring (4); a first tension rod (44) is hinged between the first support ring (42) and the support rod (41).

5. The airtightness detection device for a pediatric puncture device according to claim 4, characterized in that: A second support ring (45) is slidably connected to the mounting ring (4); a support electric push rod (43) is also arranged between the second support ring (45) and the mounting ring (4); a second tension rod (46) is hinged between the second support ring (45) and the support rod (41).

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