Anti-air interface off gas needle

Abstract

The utility model relates to medical instrument technical field especially, more particularly to a kind of gas-tight interface falling off of anti-ventilation gas-tight needle, including gas-tight needle sleeve, gas-tight needle inner core, valve, fixed nut, vent connector and gas-tight tube, gas-tight needle sleeve is hollow structure, gas-tight needle inner core is slidably inserted gas-tight needle sleeve inside, valve is installed in gas-tight needle inner core top, vent connector is connected in gas-tight needle inner core top, vent connector is rotated into gas-tight tube from below to top, fixed nut is set on gas-tight needle inner core top handle, fixed nut and valve position are opposite.The utility model is locked by the locking structure of clamping groove, guide rod, wedge block and spring, effectively prevent gas-tight needle interface from loosening or falling off due to external force, vibration or abrasion, improve the stability of interface;The design of contact plate to push wedge block outward along guide rod is convenient for unlocking and taking off interface, improve operation convenience.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a pneumoperitoneum needle that prevents the ventilation interface from falling off. Background Technology

[0002] A pneumoperitoneum needle is a medical device used in laparoscopic or other endoscopic surgeries to inject gas into the abdominal cavity to expand it. Pneumoperitoneum needles typically connect a gas tubing to the abdominal cavity to inject gases such as carbon dioxide, providing better visibility and space for subsequent surgical procedures.

[0003] However, during the use of pneumoperitoneum needles, especially when the operation is frequent or the use is prolonged, there is a risk of the interface falling off, which may lead to gas leakage or connector detachment, thereby affecting the normal progress of the operation and even potentially causing safety hazards to the patient. Utility Model Content

[0004] In order to overcome the shortcomings of traditional pneumoperitoneum needles, such as easy loosening and detachment of the interface and reduced sealing performance, the purpose of this utility model is to provide a pneumoperitoneum needle with stable interface, strong sealing performance and safe operation, and prevents the ventilation interface from falling off.

[0005] Technical solution: A pneumoperitoneum needle with anti-ventilation interface detachment includes a pneumoperitoneum needle sleeve, a pneumoperitoneum needle inner core, a valve, a fixing nut, a venting connector, and a pneumoperitoneum tube. The pneumoperitoneum needle sleeve has a hollow structure, and the pneumoperitoneum needle inner core can be slidably inserted into the pneumoperitoneum needle sleeve. The valve is installed on the top of the pneumoperitoneum needle inner core, and the venting connector is connected to the top of the pneumoperitoneum needle inner core. The venting connector is screwed into the pneumoperitoneum tube from bottom to top, and the fixing nut is set on the pneumoperitoneum needle inner core, with the fixing nut and valve positioned opposite each other.

[0006] In addition, it is particularly preferred that the pneumoperitoneum needle for preventing the ventilation interface from falling off also includes a guide rod and a wedge block. The ventilation connector is provided with a slot. The guide rod is installed on the outer surface of the pneumoperitoneum tube (6). The wedge block is slidably set on the guide rod. The wedge block is embedded in the slot. The wedge block and the slot cooperate to lock the ventilation connector and the pneumoperitoneum tube.

[0007] Furthermore, it is particularly preferred that the pneumoperitoneum needle for preventing the ventilator from falling off also includes a spring and a mounting plate. The three mounting plates are respectively set between every two guide rods, and a spring is set between the wedge block and the guide rod. The spring force makes the wedge block fit more tightly into the slot.

[0008] Furthermore, it is particularly preferred that the pneumoperitoneum needle for preventing the ventilation interface from falling off also includes an embedded ring, which is located at the upper end of the inside of the pneumoperitoneum tube and fits tightly with the inner core of the pneumoperitoneum needle.

[0009] Furthermore, it is particularly preferred that the pneumoperitoneum needle for preventing the ventilator interface from falling off also includes a rubber sealing gasket one and a rubber sealing gasket two. The rubber sealing gasket one is set on the mounting plate and cooperates with the wedge block. When the wedge block is embedded in the slot, the rubber sealing gasket one is pressed against the wedge block to enhance the airtightness of the connection between the ventilator and the pneumoperitoneum tube. The rubber sealing gasket two is set inside the pneumoperitoneum tube.

[0010] Furthermore, it is particularly preferred that the pneumoperitoneum needle for preventing the ventilator interface from falling off also includes a rotating ring and a contact plate. Both the rotating ring and the contact plate are located on the outside of the pneumoperitoneum tube. The rotating ring is rotatably connected to the outer surface of the pneumoperitoneum tube through a rotating groove, which is also located on the outside of the pneumoperitoneum tube. The contact plate is connected above the rotating ring. The rotating ring drives the contact plate, and the contact plate pushes the wedge block outward along the guide rod to facilitate unlocking and removal of the pneumoperitoneum tube. At the same time, in the locked state, the contact plate further presses the wedge block against the rubber sealing gasket.

[0011] Beneficial effects: 1. This utility model effectively prevents the pneumoperitoneum needle interface from loosening or falling off due to external force, vibration or wear through the locking structure of the slot, guide rod, wedge block and spring, thus improving the stability of the interface; the design of the contact plate pushing the wedge block outward along the guide rod facilitates the unlocking and removal of the interface, improving the ease of operation; the combination of rubber sealing gasket one with the wedge block and rubber sealing gasket two with the inner ring forms a double sealing structure, which significantly improves the sealing performance and reduces the risk of gas leakage.

[0012] 2. The overall design of this utility model is simple and easy to operate, which can effectively reduce the risks during the operation and improve the safety and efficiency of the operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a three-dimensional structural diagram of the valve, fixing nut, and inflatable tube of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the components of this utility model, such as the fixing nut, the vent connector, and the slot.

[0016] Figure 4 This is a three-dimensional structural diagram of the guide rod, wedge block, and spring components of this utility model.

[0017] Figure 5 This is a three-dimensional structural diagram of the rotating groove, the embedded ring, and the rubber sealing gasket of this utility model.

[0018] The markings in the diagram are as follows: 1-Pneumoperitoneum needle cannula, 2-Pneumoperitoneum needle inner core, 3-Valve, 4-Fixing nut, 5-Ventilation connector, 6-Pneumoperitoneum tube, 7-Slot, 8-Guide rod, 9-Wedge block, 10-Spring, 11-Mounting plate, 12-Rubber sealing gasket one, 13-Rotating ring, 14-Contact plate, 15-Rotating groove, 16-Inset ring, 17-Rubber sealing gasket two. Detailed Implementation

[0019] A pneumoperitoneum needle to prevent the ventilation interface from detaching, reference Figures 1-5 The device includes a pneumoperitoneum needle cannula 1, a pneumoperitoneum needle inner core 2, a valve 3, a fixing nut 4, a venting connector 5, a pneumoperitoneum tube 6, a slot 7, a guide rod 8, a wedge block 9, a spring 10, a mounting plate 11, a rubber sealing gasket 12, a rotating ring 13, a contact plate 14, a rotating groove 15, an embedded ring 16, and a rubber sealing gasket 2 17. The pneumoperitoneum needle cannula 1 is a hollow structure. The pneumoperitoneum needle inner core 2 can be slidably inserted into the pneumoperitoneum needle cannula 1. The valve 3 is installed on the top of the pneumoperitoneum needle inner core 2. The venting connector 5 is connected to the top of the pneumoperitoneum needle inner core 2 and is screwed into the pneumoperitoneum tube 6 from bottom to top. The fixing nut 4 is set on the handle at the top of the pneumoperitoneum needle inner core 2 and is opposite to the valve 3.

[0020] The pneumoperitoneum needle for preventing venting interface detachment also includes a guide rod 8 and a wedge block 9. A groove 7 is provided on the venting connector 5. The guide rod 8 is installed on the outer surface of the pneumoperitoneum tube 6. The wedge block 9 is slidably mounted on the guide rod 8. The wedge block 9 is embedded in the groove 7, and the wedge block 9 and the groove 7 cooperate to lock the venting connector 5 and the pneumoperitoneum tube 6, preventing the interface from loosening or detaching. The pneumoperitoneum needle for preventing venting interface detachment also includes a spring 10 and a mounting plate 11. Three mounting plates 11 are respectively positioned between every two guide rods 8. The pneumoperitoneum needle for preventing venting interface detachment also includes a rubber sealing gasket 12 and a rubber sealing gasket 2. 17. Rubber sealing gasket 12 is installed on the mounting plate 11. Rubber sealing gasket 12 cooperates with wedge block 9. When wedge block 9 is embedded in slot 7, the contact and compression between rubber sealing gasket 12 and wedge block 9 enhances the airtightness of the connection between venting connector 5 and pneumatic tube 6. Rubber sealing gasket 2 17 is installed inside pneumatic tube 6. Rubber sealing gasket 2 17 cooperates with inner ring 16 to enhance the sealing effect inside pneumatic tube 6. A spring 10 is installed between wedge block 9 and guide rod 8. The elastic force of spring 10 makes wedge block 9 more tightly embedded in slot 7, thereby enhancing the stability of the interface.

[0021] The pneumoperitoneum needle for preventing the ventilator interface from falling off also includes a rotating ring 13 and a contact plate 14. Both the rotating ring 13 and the contact plate 14 are located on the outside of the pneumoperitoneum tube 6. The rotating ring 13 is rotatably connected to the outer surface of the pneumoperitoneum tube 6 through a rotating groove 15, which is also located on the outside of the pneumoperitoneum tube 6. The contact plate 14 is connected above the rotating ring 13. The rotating ring 13 drives the contact plate 14, which pushes the wedge block 9 outward along the guide rod 8 to facilitate unlocking and removal of the pneumoperitoneum tube 6. At the same time, in the locked state, the contact plate 14 further presses the wedge block 9 against the rubber sealing gasket 12 to enhance the sealing effect.

[0022] During use, the pneumoperitoneum needle core 2 is inserted into the pneumoperitoneum needle cannula 1, and gas flows through the internal channel of the pneumoperitoneum needle core 2. The valve 3 is installed on the side of the top handle of the pneumoperitoneum needle core 2 to control the gas passage. The vent connector 5 is screwed into the pneumoperitoneum tube 6 from bottom to top. The groove 7 on the outside of the vent connector 5 cooperates with the wedge block 9 on the outside of the pneumoperitoneum tube 6. The wedge block 9 is embedded in the groove 7 to lock the vent connector 5 and the pneumoperitoneum tube 6, preventing the connection between the vent connector 5 and the pneumoperitoneum tube 6 from loosening or falling off due to external force or vibration. The fixing nut 4 is set on the top handle of the pneumoperitoneum needle core 2, opposite to the valve 3. Tightening the fixing nut 4 further tightens the connection between the vent connector 5 and the pneumoperitoneum tube 6, ensuring the stability of the overall structure. In the locked state... After the wedge block 9 is embedded in the slot 7, it contacts and presses against the rubber sealing gasket 12 on the mounting plate 11, enhancing the airtightness of the connection. At the same time, the rubber sealing gasket 17 inside the pneumatic tube 6 cooperates with the inner ring 16 to provide an internal seal. When it is necessary to remove the connection between the vent connector 5 and the pneumatic tube 6, rotate the rotating ring 13 on the outside of the pneumatic tube 6. The rotating ring 13 drives the contact plate 14 through the rotating groove 15. The contact plate 14 pushes the wedge block 9 outward along the guide rod 8, releasing the locking state between the wedge block 9 and the slot 7, making it easy to separate the vent connector 5 and the pneumatic tube 6. In the locked state, the rotating ring 13 further presses the wedge block 9 against the rubber sealing gasket 12 through the contact plate 14, further enhancing the sealing performance and ensuring the stability of gas delivery.

Claims

1. A pneumoperitoneum needle to prevent the ventilation interface from detaching, characterized in that, It includes a pneumoperitoneum needle cannula (1), a pneumoperitoneum needle core (2), a valve (3), a fixing nut (4), a venting connector (5), and a pneumoperitoneum tube (6). The pneumoperitoneum needle cannula (1) is hollow. The pneumoperitoneum needle core (2) can be slidably inserted into the pneumoperitoneum needle cannula (1). The valve (3) is installed on the top of the pneumoperitoneum needle core (2). The venting connector (5) is connected to the top of the pneumoperitoneum needle core (2). The venting connector (5) is screwed into the pneumoperitoneum tube (6) from bottom to top. The fixing nut (4) is set on the pneumoperitoneum needle core (2). The fixing nut (4) is opposite to the valve (3). The pneumoperitoneum needle for preventing the ventilator from falling off also includes a guide rod (8) and a wedge block (9). The ventilator (5) is provided with a slot (7). The guide rod (8) is installed on the outer surface of the pneumoperitoneum tube (6). The wedge block (9) is slidably set on the guide rod (8). The wedge block (9) is embedded in the slot (7). The wedge block (9) and the slot (7) cooperate to lock the ventilator (5) and the pneumoperitoneum tube (6). The pneumoperitoneum needle for preventing the ventilator from falling off also includes a spring (10) and a mounting plate (11). The three mounting plates (11) are respectively set between every two guide rods (8). A spring (10) is set between the wedge block (9) and the guide rod (8). The elastic force of the spring (10) makes the wedge block (9) more tightly embedded in the slot (7).

2. The pneumoperitoneum needle for preventing the ventilation interface from falling off as described in claim 1, characterized in that, The pneumoperitoneum needle with anti-ventilation interface detachment also includes an embedded ring (16), which is located inside the pneumoperitoneum tube (6) and fits tightly with the inner core (2) of the pneumoperitoneum needle.

3. The pneumoperitoneum needle for preventing ventilator detachment as described in claim 2, characterized in that, The pneumoperitoneum needle for preventing the ventilator from falling off also includes a rubber sealing gasket one (12) and a rubber sealing gasket two (17). The rubber sealing gasket one (12) is set on the mounting plate (11). The rubber sealing gasket one (12) cooperates with the wedge block (9). When the wedge block (9) is embedded in the slot (7), the rubber sealing gasket one (12) is pressed tightly by contact with the wedge block (9). The rubber sealing gasket two (17) is set inside the pneumoperitoneum tube (6).

4. The pneumoperitoneum needle for preventing the ventilation interface from falling off as described in claim 3, characterized in that, The pneumoperitoneum needle for preventing the ventilation interface from falling off also includes a rotating ring (13) and a contact plate (14). Both the rotating ring (13) and the contact plate (14) are located on the outside of the pneumoperitoneum tube (6). The rotating ring (13) is rotatably connected to the pneumoperitoneum tube (6) through a rotating groove (15). The rotating groove (15) is also located on the outside of the pneumoperitoneum tube (6). The contact plate (14) is connected above the rotating ring (13). The rotating ring (13) drives the contact plate (14), and the contact plate (14) pushes the wedge block (9) outward along the guide rod (8).

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