Diameter-variable tracheal catheter

Abstract

The utility model relates to the technical field of tracheal catheters, and particularly discloses a variable-diameter tracheal catheter which comprises a main air guide pipe and a variable-diameter structure, the main air guide pipe comprises a pipe diameter fixing pipe and a pipe diameter variable pipe, the ends of the pipe diameter fixing pipe and the pipe diameter variable pipe are communicated, the other end of the pipe diameter fixing pipe is communicated with a connector, and the variable-diameter structure comprises a plurality of elastic pieces and a variable-diameter inhaul cable. The elastic pieces are arranged in the pipe diameter variable pipe at intervals, each elastic piece is connected with the reducing inhaul cable and can be adjusted in the radial direction under traction of the reducing inhaul cable so as to change the pipe diameter of the pipe diameter variable pipe, the reducing inhaul cable extends out of the pipe diameter fixed pipe, the front side of the pipe diameter variable pipe is sleeved with an inflation bag, and the inflation bag is communicated with an inflation guide pipe. According to the utility model, the tube diameter of the tube with the variable tube diameter and the inflation volume of the inflation bag can be adjusted according to the condition of a patient, and the trachea can be supported under the conditions of trachea stenosis or collapse and the like, so that the ventilation volume is increased, the ventilation pressure is reduced, airway injury or other complications are avoided, and the safety of the patient is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of tracheal tubes, and in particular relates to a tracheal tube with a variable diameter. Background Art

[0002] Mechanical ventilation is a common treatment method and medical operation skill in clinical medicine. The premise of mechanical ventilation is to establish an artificial airway, which can be achieved by using tools and methods such as endotracheal intubation and laryngeal mask. Current tracheal tubes usually have a fixed inner diameter, which has certain limitations and cannot be adjusted according to the specific conditions of the patient. This may lead to limited ventilation, increased airway pressure, and increased risks of mechanical ventilation. For patients with normal internal and external structures of the trachea, the process and method of establishing an artificial airway are very mature. However, for special cases such as tracheal stenosis and collapse, if only the remaining airway space is focused on and a tracheal tube with a too small inner diameter is used, even if an artificial airway is successfully established, it may not be able to provide sufficient ventilation during mechanical ventilation, causing doctors to increase ventilation pressure to maintain sufficient airflow. However, excessive ventilation pressure may increase the risk of airway damage or other complications.

[0003] Therefore, we propose a tracheal tube with variable diameter to solve the above technical problems. Utility Model Content

[0004] In order to solve the technical problem that the inner diameter of the tracheal tube in the above-mentioned prior art is fixed, and sufficient ventilation cannot be provided for special situations such as tracheal stenosis and collapse, and the ventilation pressure needs to be increased, which may lead to an increased risk of airway damage or other complications, the utility model proposes a tracheal tube with a variable diameter.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A variable diameter tracheal catheter comprises an air guide main tube and a variable diameter structure, wherein the air guide main tube comprises a fixed diameter tube and a variable diameter tube, the ends of the fixed diameter tube and the variable diameter tube are connected, the other end of the fixed diameter tube is connected with a joint, the variable diameter tube adopts a flexible medical polymer material, the variable diameter tube comprises a plurality of elastic members and a variable diameter cable, the elastic members are arranged at intervals in the variable diameter tube, each of the elastic members is connected to the variable diameter cable and can be radially adjusted under the traction of the variable diameter cable to change the diameter of the variable diameter tube, the variable diameter cable extends out of the fixed diameter tube, an inflatable bag is sleeved on the front side of the variable diameter tube, and an inflatable catheter is connected to the inflatable bag.

[0007] By adopting the above technical solution, the utility model ensures that all parts are in good condition without damage or dirt before use, and then inserts the main air guide tube into the patient's airway until it reaches the part that needs to be treated. When the tube diameter needs to be changed, the elastic member inside the tube diameter variable tube can be deformed under the traction of the cable through the variable diameter cable, thereby changing the tube diameter of the tube diameter variable tube. At the same time, gas is injected into the inflatable bag on the front side of the tube diameter variable tube through the inflatable catheter to expand the inflatable bag, which helps to fix the position of the tube diameter variable tube and provide additional support, and the joint can be connected to medical equipment such as anesthesia machine, ventilator, artificial respiration balloon, etc. During use, by continuously monitoring the patient's condition and the position of the tracheal tube, the utility model can adjust the diameter of the variable diameter tube and the inflation volume of the inflatable bag at any time as needed. For situations such as tracheal stenosis or collapse, it can support the trachea, thereby increasing the ventilation volume, reducing the ventilation pressure, avoiding airway damage or other complications, ensuring the safety of the patient, achieving personalized treatment effects, improving the patient's comfort, and being suitable for various airway diseases and treatment needs, providing medical staff with more treatment options and flexibility. It is worth mentioning that the size of the tracheal tube in the utility model can be reduced or enlarged in proportion to the diameter and length, so as to be divided into different models to adapt to different patients and different tracheal conditions, and the medical staff can select the appropriate model as needed.

[0008] In a further technical solution, the elastic member includes a first C-shaped elastic steel wire, which is inclined toward a side away from the fixed diameter tube and increases the diameter of the variable diameter tube under the traction of the variable diameter cable.

[0009] By adopting the above technical solution, when no tension is applied to the variable diameter cable, all the first C-shaped elastic steel wires are in a "fallen down" state toward the front end of the variable diameter tube. At this time, the diameter of the variable diameter tube is in the smallest state. When the variable diameter cable is used to pull the first C-shaped elastic steel wire, the inclination angle of the first C-shaped elastic steel wire is changed, and the diameter of the variable diameter tube becomes larger, thereby adapting to the airway conditions of different patients, thereby improving the treatment effect and reducing the incidence of complications.

[0010] In a further technical solution, a cable locking structure is further included, wherein the cable locking structure is connected to the joint, the variable diameter cable passes through the cable locking structure and the position of the variable diameter cable is fixed by the cable locking structure.

[0011] By adopting the above technical solution, the position of the variable diameter cable can be fixed through the cable locking structure, thereby achieving precise diameter adjustment of the variable diameter tube and ensuring that the variable diameter tube maintains a stable shape during treatment, thereby improving the efficiency and accuracy of treatment, reducing irritation and compression to the patient's airway, and improving the patient's comfort and treatment experience.

[0012] In a further technical solution, the cable locking structure includes a guide plate and a card, the guide plate is connected to the joint, the card is slidably set on the guide plate, the variable diameter cable passes through the guide plate and is slidably connected to the guide plate, the card is provided with a V-shaped groove, and the variable diameter cable is clamped in the V-shaped groove.

[0013] By adopting the above technical solution, the variable diameter cable is clamped and fixed on the card through the V-shaped slot, which ensures the firmness and stability of the fixation and avoids accidental movement or loosening of the variable diameter cable, thereby ensuring the safety and effectiveness during the treatment. The cable locking structure is simple in design and easy to operate. Medical staff can easily unlock the variable diameter cable by sliding the card, thereby achieving precise control of the tube diameter adjustment.

[0014] In a further technical solution, a steel wire threaded support is provided inside the pipe diameter fixing pipe.

[0015] By adopting the above technical solution, a wire threaded support is provided inside the diameter fixing tube, which improves the stability of the diameter fixing tube, prevents the tube body from being flattened or buckled, and effectively ensures the stability of the catheter and the smoothness of the ventilation channel, thereby improving the treatment effect and safety.

[0016] In a further technical solution, a cable chamber is provided on the inner wall of the tube with fixed diameter, and the variable diameter cable passes through the cable chamber and extends out of the tube with fixed diameter.

[0017] By adopting the above technical solution, the cable chamber provides a space specifically for the movement of the variable diameter cable, avoiding friction with other components inside the fixed diameter tube during treatment. This not only extends the service life of the variable diameter cable, but also avoids interference with other components inside the fixed diameter tube.

[0018] In a further technical solution, a second C-shaped elastic steel wire is provided at the front end opening of the variable diameter tube, and the second C-shaped elastic steel wire is connected to the variable diameter cable.

[0019] By adopting the above technical solution, a second C-shaped elastic steel wire is provided at the front end opening of the variable diameter tube, so that under the traction of the variable diameter cable, the diameter of the variable diameter tube is increased synchronously.

[0020] In a further technical solution, the diameter-fixing tube is provided with a scale observation line.

[0021] With the above technical solution, the scale observation line facilitates confirmation of the insertion depth of the pipeline, making it convenient for medical staff to use.

[0022] In a further technical solution, the variable diameter tube adopts a double-layer structure, and the elastic member and the variable diameter cable are both located between the double-layer structure.

[0023] By adopting the above technical solution, the variable diameter tube adopts a double-layer structure to enhance structural stability, achieve more uniform radial adjustment, improve durability, and improve patient comfort, thereby improving treatment effect and quality.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0025] 1. The utility model can adjust the diameter of the variable diameter tube and the inflation volume of the inflatable bag at any time according to the patient's condition. For situations such as tracheal stenosis or collapse, it can support the trachea, thereby increasing the ventilation volume, reducing the ventilation pressure, avoiding airway damage or other complications, ensuring the safety of the patient, achieving personalized treatment effects, improving the patient's comfort, and being suitable for various airway diseases and treatment needs, providing medical staff with more treatment options and flexibility.

[0026] 2. The utility model can accurately adjust the diameter of the variable diameter tube through the cooperation of the variable diameter cable and the cable locking structure, and ensure that the variable diameter tube maintains a stable shape during treatment, thereby improving the efficiency and accuracy of treatment, reducing irritation and compression to the patient's airway, and improving the patient's comfort and treatment experience.

[0027] 3. The utility model improves the stability of the gas guide tube and the smoothness of the ventilation channel through the design of the steel wire threaded support and the cable chamber inside the tube with a fixed tube diameter, effectively ensuring the effect and safety of the treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0029] Figure 1 It is a schematic diagram of the structure of the utility model;

[0030] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0031] Figure 3 for Figure 1 A partial enlarged schematic diagram of point B in the middle;

[0032] Figure 4 for Figure 1 A partial enlarged schematic diagram of point C in the middle.

[0033] Figure markings: 1-fixed diameter tube, 2-variable diameter tube, 3-connector, 4-variable diameter cable, 5-inflatable bag, 6-inflatable catheter, 7-first C-shaped elastic steel wire, 8-guide plate, 9-card, 10-V-shaped card slot, 11-wire threaded support, 12-cable chamber, 13-second C-shaped elastic steel wire, 14-scale observation line. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Embodiment 1:

[0036] The present embodiment provides a variable-diameter tracheal tube, comprising an air guide main tube and a variable-diameter structure, wherein the air guide main tube comprises a fixed-diameter tube 1 and a variable-diameter tube 2, the ends of the fixed-diameter tube 1 and the variable-diameter tube 2 are connected, the other end of the fixed-diameter tube 1 is connected with a joint 3, the variable-diameter tube 2 is made of silicone rubber, the variable-diameter structure comprises a plurality of elastic members and a variable-diameter cable 4, the elastic members are arranged at intervals in the variable-diameter tube 2, each of the elastic members is connected to the variable-diameter cable 4 and can be radially adjusted under the traction of the variable-diameter cable 4 to change the diameter of the variable-diameter tube 2, the variable-diameter cable 4 extends out of the fixed-diameter tube 1, an inflatable bag 5 is sleeved on the front side of the variable-diameter tube 2, and an inflatable tube 6 is connected to the inflatable bag 5.

[0037] Specifically, the utility model can adjust the diameter of the variable diameter tube 2 and the inflation volume of the inflatable bag 5 at any time according to the patient's condition. For situations such as tracheal stenosis or collapse, it can support the trachea, thereby increasing the ventilation volume, reducing the ventilation pressure, avoiding airway damage or other complications, ensuring the safety of the patient, achieving personalized treatment effects, improving the patient's comfort, and being suitable for various airway diseases and treatment needs, providing medical staff with more treatment options and flexibility. It is worth mentioning that the size of the tracheal tube can be reduced or enlarged in proportion to the diameter and length, so as to be divided into different models to adapt to different patients and different tracheal conditions, and the medical staff can select the appropriate model as needed.

[0038] In this embodiment, the elastic member includes a first C-shaped elastic steel wire 7 , which is inclined toward a side away from the fixed diameter tube 1 and increases the diameter of the variable diameter tube 2 under the traction of the variable diameter cable 4 .

[0039] Specifically, when no tension is applied to the variable diameter cable 4, all the first C-shaped elastic steel wires 7 are in a "fallen down" state toward the front end of the variable diameter tube 2. At this time, the diameter of the variable diameter tube 2 is at its minimum state. When the variable diameter cable 4 is used to pull the first C-shaped elastic steel wire 7, the inclination angle of the first C-shaped elastic steel wire 7 is changed, and the diameter of the variable diameter tube 2 is increased, thereby adapting to the airway conditions of different patients, thereby improving the treatment effect and reducing the incidence of complications.

[0040] In this embodiment, a steel wire thread support 11 is provided inside the pipe diameter fixing pipe 1 .

[0041] Specifically, a wire threaded support 11 is provided inside the diameter-fixing tube 1, which improves the stability of the diameter-fixing tube 1, prevents the tube body from being flattened or bent, and effectively ensures the stability of the catheter and the smoothness of the ventilation channel, thereby improving the treatment effect and safety.

[0042] In this embodiment, a cable chamber 12 is provided on the inner wall of the fixed diameter tube 1 , and the variable diameter cable 4 passes through the cable chamber 12 and extends out of the fixed diameter tube 1 .

[0043] Specifically, the cable chamber 12 provides a space specifically for the variable diameter cable 4 to move, avoiding friction with other components inside the fixed diameter tube 1 during treatment, which not only extends the service life of the variable diameter cable 4, but also avoids interference with other components inside the fixed diameter tube 1.

[0044] In this embodiment, a second C-shaped elastic steel wire 13 is provided at the front end opening of the variable diameter tube 2, and the second C-shaped elastic steel wire 13 is connected to the variable diameter cable 4, so that under the traction of the variable diameter cable 4, the diameter of the variable diameter tube 2 is synchronously increased.

[0045] In this embodiment, a graduated observation line 14 is provided on the tube diameter fixed tube 1 to facilitate confirmation of the insertion depth of the tube and facilitate use by medical personnel.

[0046] In this embodiment, the variable diameter tube 2 adopts a double-layer structure, and the elastic member and the variable diameter cable 4 are both located between the double-layer structure. The variable diameter tube 2 adopts a double-layer structure to enhance structural stability, achieve more uniform radial adjustment, improve durability, and improve patient comfort, thereby improving the treatment effect and quality.

[0047] The specific usage method of this embodiment is as follows:

[0048] Before performing tracheal intubation to establish an artificial airway, calculate the intratracheal data such as the tracheal inner diameter, stenosis or collapse position, length, and intubation space data based on auxiliary examinations such as CT examinations, so as to select a suitable tracheal tube model. After anesthesia, use airway tools such as a laryngoscope and a soft mirror to expose the glottis, apply lubricating fluid to the outside of the selected variable diameter tube 2, and make the variable diameter tube 2 in a state of minimum outer diameter, and then insert it into the patient's trachea. When the variable diameter tube 2 is located at the stenosis or collapse of the trachea, fix the position of the variable diameter tube 2, pull the variable diameter cable 4 to a suitable traction force and maintain the position of the variable diameter cable 4, then properly inflate the airbag 5 to close the airway, use the connector 3 to connect the ventilator, anesthesia machine and other equipment, and the artificial airway is established. During use, the variable diameter tube 2 can be entered through a soft mirror to observe the variable diameter structure, and the important parameters such as ventilation pressure and ventilation volume can be reflected through the measurement parameters of equipment such as anesthesia machines or ventilators, so as to judge whether the support effect of the variable diameter tracheal tube on the narrow and collapsed trachea is effective, so as to make adjustments to adapt to the patient's trachea and improve the treatment effect.

[0049] Embodiment 2:

[0050] This embodiment is obtained by further optimizing the embodiment 1. In this embodiment, it also includes a cable locking structure, which is connected to the joint 3. The cable locking structure includes a guide plate 8 and a card 9. The guide plate 8 is connected to the joint 3. The card 9 is slidably set on the guide plate 8. The variable diameter cable 4 passes through the guide plate 8 and is slidably connected to the guide plate 8. The card 9 is provided with a V-shaped groove 10. The variable diameter cable 4 is clamped in the V-shaped groove 10.

[0051] Specifically, the position of the variable diameter cable 4 can be fixed by the cable locking structure, thereby achieving precise diameter adjustment of the variable diameter tube 2 and ensuring that the variable diameter tube 2 maintains a stable shape during treatment, thereby improving the efficiency and accuracy of treatment, reducing irritation and compression to the patient's airway, and improving the patient's comfort and treatment experience.

[0052] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tracheal tube with a variable diameter, characterized in that: The invention comprises an air guide main pipe and a variable diameter structure, wherein the air guide main pipe comprises a fixed diameter pipe (1) and a variable diameter pipe (2), the ends of the fixed diameter pipe (1) and the variable diameter pipe (2) are connected, the other end of the fixed diameter pipe (1) is connected to a joint (3), the variable diameter pipe (2) is made of a flexible medical polymer material, the variable diameter structure comprises a plurality of elastic members and a variable diameter cable (4), the elastic members are arranged at intervals in the variable diameter pipe (2), each of the elastic members is connected to the variable diameter cable (4) and can be radially adjusted under the traction of the variable diameter cable (4) to change the diameter of the variable diameter pipe (2), the variable diameter cable (4) extends out of the fixed diameter pipe (1), an inflatable bag (5) is sleeved on the front side of the variable diameter pipe (2), and an inflatable catheter (6) is connected to the inflatable bag (5).

2. A variable diameter endotracheal tube according to claim 1, characterized in that: The elastic member comprises a first C-shaped elastic steel wire (7), the first C-shaped elastic steel wire (7) is inclined toward a side away from the fixed diameter tube (1), and increases the diameter of the variable diameter tube (2) under the traction of the variable diameter cable (4).

3. A variable diameter endotracheal tube according to claim 1, characterized in that: It also comprises a cable locking structure, which is connected to the joint (3); the variable diameter cable (4) passes through the cable locking structure and the position of the variable diameter cable (4) is fixed by the cable locking structure.

4. A variable diameter endotracheal tube according to claim 3, characterized in that: The cable locking structure comprises a guide plate (8) and a card (9), wherein the guide plate (8) is connected to the joint (3), the card (9) is slidably arranged on the guide plate (8), the variable diameter cable (4) passes through the guide plate (8) and is slidably connected to the guide plate (8), the card (9) is provided with a V-shaped groove (10), and the variable diameter cable (4) is clamped in the V-shaped groove (10).

5. The variable diameter endotracheal tube according to claim 1, characterized in that: A steel wire thread support (11) is provided inside the pipe diameter fixing pipe (1).

6. The variable diameter endotracheal tube according to claim 1, characterized in that: A cable chamber (12) is provided on the inner wall of the fixed diameter tube (1), and the variable diameter cable (4) passes through the cable chamber (12) and extends out of the fixed diameter tube (1).

7. The variable diameter endotracheal tube according to claim 1, characterized in that: A second C-shaped elastic steel wire (13) is provided at the front end opening of the variable diameter tube (2), and the second C-shaped elastic steel wire (13) is connected to the variable diameter cable (4).

8. The variable diameter endotracheal tube according to claim 1, characterized in that: The diameter-fixing tube (1) is provided with a scale observation line (14).

9. The variable diameter endotracheal tube according to claim 1, characterized in that: The variable diameter tube (2) adopts a double-layer structure, and the elastic member and the variable diameter cable (4) are both located between the double-layer structure.

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