Device for detecting blockage condition and air tightness of trachea cannula

Abstract

The utility model discloses a device for detecting the blockage condition and air tightness of a trachea cannula, and relates to the field of detection. According to the specific implementation scheme, the device comprises a gas injection assembly, a motor used for controlling gas feeding to the gas injection assembly, a four-way valve, a trachea cannula, a pressure sensor used for detecting whether the pressure in the trachea cannula is abnormal or not and an electromagnetic valve; the motor is connected with the gas injection assembly, the gas outlet end of the gas injection assembly is connected with the first end of the four-way valve through a connecting pipe, the trachea cannula is connected with the second end of the four-way valve, the pressure sensor is connected with the third end of the four-way valve, and the electromagnetic valve is connected with the fourth end of the four-way valve. According to the utility model, the plurality of injectors are arranged, so that the blockage condition and the air tightness of the plurality of trachea cannulas can be simultaneously detected, and whether the trachea cannulas are blocked or not and whether the air tightness of the trachea cannulas is good or not can be quickly judged by utilizing the injectors to inflate the trachea cannulas and by means of the pressure sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of detection, in particular to a device for detecting the blockage condition and air tightness of a tracheal tube. Background Art

[0002] Common single-use endotracheal tubes on the market are relatively mature products. Whether the inflation tube is blocked and the airtightness of the cuff during use are key indicators of product quality, directly affecting the success of surgical procedures. Therefore, single-use endotracheal tubes are tested for both inflation tube blockage and cuff airtightness before release.

[0003] However, there is currently no ready-made equipment to detect inflation tube blockage, and most cuff leakage detection is done by manually injecting gas and manually visually inspecting the air tightness of the endotracheal tube, resulting in low accuracy in detecting endotracheal tube blockage and air tightness. Utility Model Content

[0004] Based on this, the utility model provides a device for detecting the blockage status and air tightness of a tracheal tube in order to solve the problem of low accuracy in detecting the blockage status and air tightness of the tracheal tube.

[0005] The utility model provides a device for detecting the blockage condition and air tightness of an endotracheal tube, comprising:

[0006] A gas injection assembly, a motor for controlling the supply of gas to the gas injection assembly, a four-way valve, an endotracheal tube, a pressure sensor for detecting whether the pressure in the endotracheal tube is abnormal, and a solenoid valve;

[0007] The motor is connected to the gas injection assembly, the gas outlet end of the gas injection assembly is connected to the first end of the four-way valve through a connecting pipe, the tracheal tube is connected to the second end of the four-way valve, the pressure sensor is connected to the third end of the four-way valve, and the solenoid valve is connected to the fourth end of the four-way valve.

[0008] The gas injection assembly includes a plurality of syringes, each syringe includes a screw rod and a syringe, and one end of the screw rod extends into the syringe.

[0009] The gas injection assembly further includes a fixing plate, and the other end of the screw rod is fixed to one side of the fixing plate.

[0010] The other side of the fixing plate is connected to the motor shaft of the motor.

[0011] It also includes a workbench and an operating table, wherein the operating table is arranged on the top of the workbench, and the motor and the gas injection component are both arranged inside the workbench.

[0012] The operating table is provided with a Luer plate, and the Luer plate is provided with a plurality of Luer connectors, and the Luer connectors are connected to the first end of the four-way valve.

[0013] The endotracheal tube is connected to the Luer connector.

[0014] Two displacement sensors are also provided on one side of the workbench.

[0015] Beneficial effect: The utility model is equipped with multiple syringes, which can simultaneously detect the blockage status and air tightness of multiple endotracheal tubes. By using the syringe to inflate the endotracheal tube and using the pressure sensor, it can quickly determine whether the endotracheal tube is blocked and whether the air tightness of the endotracheal tube is good.

[0016] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to better understand the present invention and do not constitute a limitation of the present invention.

[0018] Figure 1 This is a schematic diagram of the external structure of a device for detecting the blockage and air tightness of an endotracheal tube provided by the utility model;

[0019] Figure 2 This is a schematic diagram of the positional relationship between the gas injection assembly and the motor provided by the utility model;

[0020] Figure 3 This is a side view of a device for detecting the blockage and airtightness of an endotracheal tube provided by the present invention;

[0021] Figure 4 The utility model is a schematic plan view of the internal structure of a device for detecting the blockage condition and air tightness of an endotracheal tube. DETAILED DESCRIPTION

[0022] The following description of exemplary embodiments of the present invention is made in conjunction with the accompanying drawings, which include various details of the embodiments of the present invention to facilitate understanding. These details should be considered as merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0023] like Figures 1 to 4As shown, the utility model provides a device for detecting the blockage condition and airtightness of an endotracheal tube, comprising:

[0024] A gas injection assembly 1, a motor 2 for controlling the gas supply to the gas injection assembly 1, a four-way valve 3, an endotracheal tube 4, a pressure sensor 5 for detecting whether the pressure in the endotracheal tube 4 is abnormal, and a solenoid valve 6;

[0025] The gas injection component 1 is used to inject gas into the endotracheal tube 4;

[0026] The battery powers the motor 2, which in turn drives the screw 111, which in turn drives the syringe 112 to inflate and deflate. When the motor 2 is powered, the magnetic field generated by the current interacts with the conductor inside the motor 2, generating torque. This torque is transmitted to the fixed plate 12 via the motor shaft, which in turn pushes the screw 111 toward the syringe 112.

[0027] Furthermore, the four-way valve 3 has four ends, which are respectively connected to the syringe 11, the endotracheal tube 4, the pressure sensor 5 and the solenoid valve 6, so that the gas in the syringe 11 enters the endotracheal tube 4 through the four-way tube 3;

[0028] In the present application, the pressure sensor 5 is a 2SNPP-03 (-50~50kPa) pressure sensor, and the solenoid valve 6 is a 3 / 2 normally closed direct-acting L-type solenoid valve.

[0029] The pressure sensor 5 is used to determine whether the pressure value inside the endotracheal tube 4 is normal, thereby determining whether the endotracheal tube 4 is blocked or leaking;

[0030] The solenoid valve 6 is used to open in time when a blockage occurs in the endotracheal tube 4 and the pressure rises rapidly to a dangerous level, allowing some gas to be discharged, thereby preventing damage to the equipment.

[0031] The motor 2 is connected to the gas injection assembly 1, the gas outlet end of the gas injection assembly 1 is connected to the first end of the four-way valve 3 through a connecting pipe, the tracheal tube 4 is connected to the second end of the four-way valve 3, the pressure sensor 5 is connected to the third end of the four-way valve 3, and the solenoid valve 6 is connected to the fourth end of the four-way valve 3.

[0032] Furthermore, the gas injection assembly 1 includes a plurality of syringes 11 , each syringe 11 including a screw rod 111 and a syringe 112 , and one end of the screw rod 111 extends into the syringe 112 .

[0033] The gas injection assembly 1 includes multiple syringes 11 and can simultaneously detect multiple endotracheal tubes 4, thereby improving detection efficiency.

[0034] The gas injection assembly 1 further includes a fixing plate 12 , and the other end of the screw rod 111 is fixed to one side of the fixing plate 12 .

[0035] The other side of the fixing plate 12 is connected to the motor shaft of the motor 2 .

[0036] Furthermore, it also includes a workbench 7 and an operating table 8. The operating table 8 is arranged on the top of the workbench 7, and the motor 2 and the gas injection assembly 1 are both arranged inside the workbench 7.

[0037] The operating console 8 is provided with a power button, which can be used to control the start and stop of the device.

[0038] A Luer plate 9 is provided on the operating table 8 , and a plurality of Luer connectors 10 are provided on the Luer plate 9 . The Luer connectors 10 are connected to the first end of the four-way valve 3 .

[0039] The number of Luer connectors 10 is the same as the number of syringes 11 , and the two are matched one to one, so that the blockage status and air tightness of multiple endotracheal tubes 4 can be detected at the same time.

[0040] The endotracheal tube 4 is connected to the Luer connector 10 .

[0041] The tracheal tube 4 includes a ventilation main pipe 41, an inflation connector 42, an inflation tube 43 and a cuff 44. The inflation connector 42 is connected to the side of the ventilation main pipe 41 through the inflation tube 43, and the inflation tube 43 is connected to the ventilation main pipe 41 by gluing. The cuff 44 is sleeved on the ventilation main pipe 41.

[0042] The inflation tube 43 is made of PVC material, which has good flexibility and can be adapted to requirements of different shapes.

[0043] The inflation connector 42 is connected to the Luer connector 10 , the motor 2 moves, driving the screw 111 , and the screw 111 moves to inflate the syringe 112 , and the gas enters the four-way valve 3 and the Luer connector 10 in sequence from the connecting pipe and then enters the endotracheal tube 4 .

[0044] Two displacement sensors 71 are further provided on one side of the workbench 7 .

[0045] The two displacement sensors 71 are used to detect the initial position and the end position of the fixed plate 12 respectively. When the motor 2 drives the screw rod 111 to push the syringe 112 to the bottom, the fixed plate 12 reaches the end position. When the power is cut off, the fixed plate 12 will return to the starting position.

[0046] The working mode is divided into detecting endotracheal tube blockage and air leakage.

[0047] The working principle of the endotracheal tube blockage detection mode is to determine whether the endotracheal tube is blocked based on the time it takes for the endotracheal tube pressure to increase from the minimum set pressure to the maximum set pressure.

[0048] Operation steps: Connect the inflation connector 42 of the tracheal cannula 4 to the Luer connector 10, turn on the power switch, set a given pressure value (different tracheal cannulas 4 have different set pressure values) and set the inflation value of the syringe 112, turn on the blockage detection switch, and when the motor 2 pushes the screw rod 111 toward the syringe 112, the tracheal cannula 4 is inflated. During inflation, if any of the inflation tubes 4 is blocked, the pressure value of the corresponding pressure sensor 5 will rise sharply, and the corresponding deflation valve 6 will work to deflate. Other tracheal cannulas can be inflated normally.

[0049] The working principle of the endotracheal tube leakage detection mode: determine whether there is a leak based on the pressure change within a given time.

[0050] Operation steps: Turn on the power switch, set a predetermined pressure value (different endotracheal tubes 4 have different set pressure values), the motor 2 drives the screw rod 111 to push the syringe 112 to the bottom to inflate the endotracheal tube 4. When the corresponding pressure sensor 5 detects insufficient pressure, it means that the endotracheal tube 4 is leaking.

[0051] The utility model is provided with multiple syringes 11, which can simultaneously detect the blockage status and air tightness of multiple endotracheal tubes 4. By using the syringes 11 to inflate the endotracheal tubes 4 and with the help of the pressure sensor 5, it can quickly determine whether the endotracheal tubes 4 are blocked and whether the air tightness of the endotracheal tubes 4 is good. It can effectively solve the problem in the existing technology that most of the cuff leakage detection is done by manually injecting gas and manually visually detecting the air tightness of the endotracheal tubes 4, resulting in low accuracy in the detection of the blockage status and air tightness of the endotracheal tubes 4.

[0052] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present invention shall be covered by the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A device for detecting the blockage and airtightness of an endotracheal tube, characterized in that: include: A gas injection assembly, a motor for controlling the supply of gas to the gas injection assembly, a four-way valve, an endotracheal tube, a pressure sensor for detecting whether the pressure in the endotracheal tube is abnormal, and a solenoid valve; The motor is connected to the gas injection assembly, the gas outlet end of the gas injection assembly is connected to the first end of the four-way valve through a connecting pipe, the tracheal tube is connected to the second end of the four-way valve, the pressure sensor is connected to the third end of the four-way valve, and the solenoid valve is connected to the fourth end of the four-way valve.

2. The device for detecting the blockage and airtightness of an endotracheal tube according to claim 1, characterized in that: The gas injection assembly includes a plurality of syringes, each syringe includes a screw rod and a syringe, and one end of the screw rod extends into the syringe.

3. The device for detecting the blockage and airtightness of an endotracheal tube according to claim 2, characterized in that: The gas injection assembly further includes a fixing plate, and the other end of the screw rod is fixed to one side of the fixing plate.

4. The device for detecting the blockage and airtightness of an endotracheal tube according to claim 3, characterized in that: The other side of the fixing plate is connected to the motor shaft of the motor.

5. The device for detecting the blockage and airtightness of an endotracheal tube according to claim 4, characterized in that: It also includes a workbench and an operating table, wherein the operating table is arranged on the top of the workbench, and the motor and the gas injection component are both arranged inside the workbench.

6. The device for detecting the blockage and airtightness of an endotracheal tube according to claim 5, characterized in that: The operating table is provided with a Luer plate, and the Luer plate is provided with a plurality of Luer connectors, and the Luer connectors are connected to the first end of the four-way valve.

7. The device for detecting the blockage and airtightness of an endotracheal tube according to claim 6, characterized in that: The endotracheal tube is connected to the Luer connector.

8. A device for detecting the blockage and airtightness of an endotracheal tube according to any one of claims 5 to 7, characterized in that: Two displacement sensors are also provided on one side of the workbench.

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