Double-lumen bronchial catheter capable of conveniently switching ventilation states

Abstract

The utility model discloses a double-lumen bronchial catheter capable of conveniently switching ventilation states, which comprises a Y-shaped connecting tube vertical section, a Y-shaped connecting tube horizontal section, a Y-shaped connecting tube connecting section, a rotary switch valve and a switch valve, the rotary switch valve is arranged at the inlet end of the Y-shaped connecting tube vertical section, a ventilation hole is arranged on the rotary switch valve, and the switch valve is arranged on the Y-shaped connecting tube horizontal section. The vertical section of the Y-shaped connecting pipe is connected with the inlet end of the horizontal section of the Y-shaped connecting pipe through the vent hole, the rotary switch valve is provided with a switch valve, and the outlet end of the horizontal section of the Y-shaped connecting pipe is connected through the connecting section of the Y-shaped connecting pipe. According to the utility model, the switch valve can be closed and adjusted, single / double lung ventilation states can be conveniently switched, lung isolation can be completed under a closed condition, small tidal volume ventilation can be provided for the lung of an affected side when necessary by adjusting the size of the switch valve, and the oxygen saturation of a patient can be more favorably maintained.

Description

Technical Field

[0001] This utility model relates to the field of bronchial tube technology, and in particular to a dual-lumen bronchial tube that can conveniently switch ventilation states. Background Technology

[0002] Double-lumen endotracheal tubes are commonly used in thoracic surgery anesthesia for intraoperative airway management to achieve one-lung ventilation and lung isolation techniques. However, the mainstream double-lumen endotracheal tubes currently on the market use a Y-shaped connector to connect the main / side lumen to the conventional breathing circuit. During one-lung ventilation, hemostatic forceps must be used to close one side of the connector or the Y-shaped connector must be removed and replaced with a conventional circuit extension tube. The reverse procedure is required for two-lung ventilation. This process is relatively complex, involves more components, and is not conducive to emergency airway management. However, in patients with poor lung function, one-lung ventilation is sometimes insufficient to maintain oxygenation. Continuous positive airway pressure (CPAP) is needed on the non-ventilated lung to improve oxygenation, improve intrapulmonary shunting, and reduce postoperative atelectasis, but this requires a separate external device. Double-lumen endotracheal tubes also play a crucial role in lung isolation techniques. In this scenario, the patient may have an infection or tumor in one lung. During invasive procedures, unnecessary exposure of the affected side should be minimized to reduce iatrogenic infection and contamination of the work environment. However, in routine procedures like the above, the airway on the affected side is often connected to the air, increasing the risk of transmission, violating aseptic principles, and potentially increasing the incidence of atelectasis on the affected side.

[0003] Therefore, there is an urgent need for a dual-lumen bronchial tube that can easily switch between ventilation modes. Utility Model Content

[0004] This invention provides a dual-lumen bronchial tube that can conveniently switch ventilation modes, thereby solving the technical problem of complicated connection tube operation when switching between single / double lung ventilation.

[0005] This utility model provides a dual-lumen bronchial tube capable of conveniently switching ventilation states, comprising a Y-shaped connecting tube. The Y-shaped connecting tube includes two vertical sections, two horizontal sections, and a connecting section. The proximal ends of the two horizontal sections are connected through the connecting section. A rotary valve is provided in the proximal end of the vertical section, and the rotary valve is rotatable within the proximal end of the vertical section. The rotary valve has a vent hole, and the proximal end of the vertical section is connected to the distal end of the horizontal section through the vent hole. A switch valve is detachably provided on the rotary valve.

[0006] The aforementioned dual-lumen bronchial tubing capable of conveniently switching ventilation states preferably includes a rotary switch valve comprising an angle adjustment compass and a rotary valve inner shaft. The rotary valve inner shaft is a hollow structure, nested inside the proximal end of the vertical section of the Y-shaped connecting tube, and capable of rotating within the proximal end of the vertical section of the Y-shaped connecting tube. A vent hole is provided on the side wall of the rotary valve inner shaft, and the rotary valve inner shaft can communicate with the distal end of the horizontal section of the Y-shaped connecting tube through the vent hole. The rotary valve inner shaft is connected to the switch valve via the angle adjustment compass, which has an opening communicating with the hollow structure. The switch valve is detachably housed within the opening.

[0007] The dual-lumen bronchial tubing capable of conveniently switching ventilation states, preferably, includes an angle adjustment compass comprising a body and an angle scale, wherein the body has the opening, the opening being connected to the hollow structure of the inner shaft of the rotary valve, and the body has the angle scale.

[0008] Preferably, the dual-lumen bronchial tube capable of conveniently switching ventilation states is provided with an adjustment handle on its main body, the adjustment handle being distributed on the outer circumference of the main body, and the scale of the angle dial corresponding one-to-one with the adjustment handle.

[0009] Preferably, in the dual-lumen bronchial tubing capable of conveniently switching ventilation states, the switching valve includes a connector, a rubber plug, and a connector. The connector is connected to the angle adjustment compass, and the connector has an opening that communicates with the hollow structure through the opening. The connector is connected to the rubber plug through the connector.

[0010] The beneficial effects are:

[0011] 1. The rotary valve eliminates the need to replace the breathing circuit extension tube when switching between single / double lung ventilation modes, improving operational convenience.

[0012] 2. By adjusting the overlap between the ventilation port and the horizontal section of the Y-shaped connecting tube, small tidal volume ventilation can be provided to the affected lung when necessary, which is more conducive to maintaining the patient's oxygen saturation.

[0013] 3. During bilateral lung ventilation, the ventilator can be fully connected, allowing complete gas exchange in both lumens. When unilateral lung ventilation is required, the regulating valve can be closed, deventing the affected side of the duct and achieving unilateral lung ventilation and lung isolation. During surgical procedures, the affected trachea is completely sealed, reducing iatrogenic transmission and surgical environment contamination, and preventing lung collapse. If it is necessary to release gas from the affected lung, causing complete lung collapse, residual gas can be suctioned out using a negative pressure device and suction catheter under closed conditions via the top valve. When unilateral lung ventilation is insufficient to maintain the patient's oxygenation, in volume-controlled ventilation mode, the ventilator can be partially connected by rotating the valve, allowing a low flow rate of gas to enter the affected lung, achieving low tidal volume ventilation to maintain oxygenation and reduce intrapulmonary shunting.

[0014] This invention maintains the airtightness of the affected lung, reduces the risk of iatrogenic contamination, and avoids atelectasis. By improving the structure of the connecting tube, it avoids repeated replacement of the extension tube, optimizes the operation, and avoids related risks. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of a single-sided Y-type connector.

[0017] Figure 3 A schematic diagram showing the usage status of rotary valves and on / off valves;

[0018] Figure 4 This is a schematic diagram of a rotary valve.

[0019] In the picture:

[0020] 1. Vertical section of the first Y-type connector; 1-1. Proximal end of the vertical section of the first Y-type connector;

[0021] 2. The horizontal section of the first Y-shaped connecting pipe;

[0022] 2-1. The proximal end of the horizontal section of the first Y-type connecting pipe; 2-2. The distal end of the horizontal section of the first Y-type connecting pipe;

[0023] 3. Vertical section of the second Y-type connector; 3-1. Proximal end of the vertical section of the second Y-type connector;

[0024] 4. Horizontal section of the second Y-shaped connecting pipe;

[0025] 4-1. The proximal end of the horizontal section of the second Y-type connector; 4-2. The distal end of the horizontal section of the second Y-type connector;

[0026] 5. Connection section of Y-type connecting pipe;

[0027] 6. Connector;

[0028] 7. Angle adjustment compass; 7-1. Body; 7-2. Angle adjustment handle; 7-3. Angle scale;

[0029] 8. Rotary valve inner shaft; 9. Switch valve; 10. Vent hole; 11. Opening; 12. Opening. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the system or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the use of terms such as "first," "second," etc., to define components is merely for the convenience of distinguishing the aforementioned components; unless otherwise stated, these terms have no special meaning and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] This invention provides a dual-lumen bronchial catheter capable of conveniently switching ventilation states, comprising a Y-shaped connector. The Y-shaped connector includes two vertical sections, two horizontal sections, and a connecting section. The outlet ends of the two horizontal sections are connected via the connecting section. A rotary valve is located at the proximal end of each vertical section, and the rotary valve has a ventilation port. The vertical section is connected to the distal end of each horizontal section via the ventilation port. A switch valve is detachably mounted on the rotary valve, and the proximal end of each horizontal section is connected via the connecting section. This invention allows for adjustment of the switch valve size, enabling small tidal volume ventilation to the affected lung when necessary, which is more conducive to maintaining the patient's oxygen saturation.

[0034] The following section uses a dual-lumen bronchial tube that allows for easy switching of ventilation modes as an example to illustrate the entire technical process in detail.

[0035] like Figures 1 to 4 The diagram shows a dual-lumen bronchial tube capable of conveniently switching ventilation states, comprising a Y-shaped connector. The Y-shaped connector includes a first Y-shaped connector vertical section 1, a first Y-shaped connector horizontal section 2, a second Y-shaped connector vertical section 3, a second Y-shaped connector horizontal section 4, and a connecting section 5. The proximal ends 2-1 of the first Y-shaped connector horizontal section and 4-1 of the second Y-shaped connector horizontal section are connected through the connecting section 5. A rotary valve is respectively embedded in the proximal ends 1-1 of the first Y-shaped connector vertical section and 3-1 of the second Y-shaped connector vertical section, and the rotary valve is rotatable within the proximal ends 1-1 of the first Y-shaped connector vertical section and 3-1 of the second Y-shaped connector vertical section.

[0036] The rotary switch valve is provided with a vent hole 10. The proximal end 1-1 of the vertical section of the first Y-shaped connecting pipe is connected to the distal end 2-2 of the horizontal section of the first Y-shaped connecting pipe through the vent hole 10. The proximal end 3-1 of the vertical section of the second Y-shaped connecting pipe is connected to the distal end 4-2 of the horizontal section of the second Y-shaped connecting pipe through the vent hole 10. The rotary switch valve is detachably provided with the switch valve.

[0037] like Figure 4 As shown, the rotary switch valve is detachably equipped with a switch valve 9, which can be removed to allow insertion of a suction catheter or bronchoscope to complete closed suctioning or bronchoscopy.

[0038] The switching valve 9 includes a connector 6, a rubber plug 9-1, and a connector. The rubber plug 9-1 is connected to the connector 6 via the connector. The connector 6 has an opening 12, which communicates with the hollow structure through an opening 11. Furthermore, the connector can be a hanging rope, with one end fixed to the connector 6 and the other end fixed to the rubber plug 9-1. The rubber plug 9-1 can be removed from the connector 6.

[0039] like Figure 1 and Figure 4 As shown, the rotary switch valve is installed inside the proximal end 1-1 of the vertical section of the first Y-type connecting pipe and inside the proximal end 3-1 of the vertical section of the second Y-type connecting pipe in the same way. The following description takes the installation of the rotary switch valve inside the proximal end 1-1 of the vertical section of the first Y-type connecting pipe as an example.

[0040] The rotary valve includes an angle adjustment compass 7 and a rotary valve inner shaft 8. The rotary valve inner shaft 8 is a hollow structure and is nested inside the proximal end 1-1 of the vertical section of the first Y-shaped connecting pipe. The rotary valve inner shaft 8 can rotate inside the proximal end 1-1 of the vertical section of the first Y-shaped connecting pipe. A vent hole 10 is provided on the side wall of the rotary valve inner shaft 8, and the rotary valve inner shaft 8 can communicate with the proximal end 1-1 of the vertical section of the first Y-shaped connecting pipe through the vent hole 10. The rotary valve inner shaft 8 is connected to the switch valve 9 through the angle adjustment compass 7. The angle adjustment compass 7 has an opening 11, which communicates with the hollow structure. The switch valve 9 is detachably installed inside the opening 11.

[0041] like Figure 4 As shown, the angle adjustment compass 7 includes a body 7-1, an adjustment handle 7-2, and an angle scale 7-3. The body 7-1 has an opening 11, and the adjustment handle 7-2 is located on the outer circumference of the body 7-1. Each adjustment handle 7-2 corresponds to a graduation on the angle scale 7-3. Manually moving the adjustment handle 7-2 causes the inner shaft 8 of the rotary valve to rotate, thereby adjusting the position of the through hole 10.

[0042] Work process:

[0043] Pull out switch valve 9, and a suction tube or bronchoscope can be inserted through switch valve 9 to perform endotracheal operations.

[0044] Rotate the angle adjustment compass 7 to adjust the direction of the inner shaft 8 of the rotary valve, and further adjust the position of the vent 10.

[0045] Specifically, the angle adjustment compass 7 on the vertical section 1 of the first Y-type connecting tube and the angle adjustment compass 7 on the vertical section 3 of the second Y-type connecting tube are adjusted simultaneously. When the angle adjustment compass 7 on the vertical section 1 of the first Y-type connecting tube drives the inner shaft 8 of the rotating valve to make the ventilation hole 10 completely coincide with the lumen of the horizontal section 2 of the first Y-type connecting tube, and the angle adjustment compass 7 on the vertical section 3 of the second Y-type connecting tube drives the inner shaft 8 of the rotating valve to make the ventilation hole completely coincide with the lumen of the vertical section 3 of the second Y-type connecting tube, the bronchial lumen is opened for ventilation, and at this time, bilateral lung ventilation can be achieved.

[0046] When the position of the angle adjustment compass 7 on the vertical section 1 of the first Y-type connecting tube or the angle adjustment compass 7 on the vertical section 3 of the second Y-type connecting tube is adjusted so that the ventilation hole 10 of the angle adjustment compass 7 on the vertical section 1 of the first Y-type connecting tube is perpendicular to the lumen of the horizontal section 2 of the first Y-type connecting tube or the ventilation hole 10 of the angle adjustment compass 7 on the vertical section 3 of the second Y-type connecting tube is perpendicular to the lumen of the horizontal section 4 of the second Y-type connecting tube, the bronchial lumen is closed for ventilation, and a one-lung ventilation or lung isolation strategy can be realized at this time.

[0047] When ventilation volume needs to be adjusted individually or simultaneously, the position of the angle adjustment compass 7 on the vertical section 1 of the first Y-type connecting pipe or the angle adjustment compass 7 on the vertical section 3 of the second Y-type connecting pipe can be adjusted to adjust the overlap of the lumen between the vent 10 and the horizontal section 2 of the first Y-type connecting pipe, and the overlap of the lumen between the vent 10 and the horizontal section 4 of the second Y-type connecting pipe, so as to adjust the small tidal volume ventilation in the bronchus.

[0048] Regardless of the state of the rotary valve, endotracheal operations can be performed through the rubber conical plug 9.

[0049] This invention improves the ease of operation when using double-lumen bronchial ventilation for single / double-lung ventilation in thoracic surgery, increases the airway tightness during operation, reduces the time the airway is open, avoids lung collapse and potential dissemination of respiratory pathogens and tumors, and reduces the risk of cross-infection.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dual-lumen endotracheal tube capable of conveniently switching ventilation states, comprising a Y-shaped connector, wherein the Y-shaped connector includes two vertical Y-shaped connector segments, two horizontal Y-shaped connector segments, and a connecting segment of the Y-shaped connector, the proximal ends of the two horizontal Y-shaped connector segments being connected through the connecting segment of the Y-shaped connector, characterized in that, A rotary switch valve is provided in the proximal end of the vertical section of the Y-type connecting pipe, and the rotary switch valve can rotate in the proximal end of the vertical section of the Y-type connecting pipe. The rotary switch valve is provided with a vent hole. The proximal end of the vertical section of the Y-type connecting pipe is connected to the distal end of the horizontal section of the Y-type connecting pipe through the vent hole. A switch valve is detachably provided on the rotary switch valve. The rotary switch valve includes an angle adjusting compass and a rotary valve inner shaft. The rotary valve inner shaft is a hollow structure and is nested inside the proximal end of the vertical section of the Y-shaped connecting pipe. The rotary valve inner shaft can rotate inside the proximal end of the vertical section of the Y-shaped connecting pipe. The side wall of the rotary valve inner shaft is provided with a vent hole, and the rotary valve inner shaft can be connected to the distal end of the horizontal section of the Y-shaped connecting pipe through the vent hole. The rotary valve inner shaft is connected to the switch valve through the angle adjusting compass. The angle adjusting compass is provided with an opening that communicates with the hollow structure. The switch valve is detachably installed inside the opening.

2. The dual-lumen bronchial tube capable of conveniently switching ventilation states according to claim 1, characterized in that, The angle adjustment compass includes a body and an angle scale. The body has the opening, which communicates with the hollow structure of the inner shaft of the rotary valve. The body also has the angle scale.

3. The dual-lumen bronchial tube capable of conveniently switching ventilation states according to claim 2, characterized in that, The main body is provided with an adjustment handle, which is distributed on the outer circumference of the main body, and the scale of the angle dial corresponds one-to-one with the adjustment handle.

4. The dual-lumen bronchial tube capable of conveniently switching ventilation states according to any one of claims 2 to 3, characterized in that, The switching valve includes a connector, a rubber plug, and a connector. The connector is connected to the angle adjustment compass. The connector has an opening that communicates with the hollow structure through the opening. The connector is connected to the rubber plug through the connector.

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