Gas-liquid shunting type tracheal catheter device

Abstract

The utility model discloses a gas-liquid shunting type tracheal catheter device, which belongs to the technical field of medical instruments and comprises a tracheal catheter, a sputum excretion tube, an air blowing tube, a balloon and a balloon catheter. The upper end of the tracheal catheter is connected with the breathing machine; the sputum excretion tube sleeves the upper side of the outer part of the tracheal catheter and extends downwards to a position below a glottis line; the upper end of the sputum discharge pipe is connected with the sputum storage tank through a negative pressure mechanism; the balloon is arranged on the outer side above the lower end part of the sputum excretion tube, and the upper end of the balloon is connected with the balloon catheter; the blowing tube is arranged between the sputum excretion tube and the tracheal catheter, the upper end is connected with an external air supply mechanism, and the lower end extends below the balloon and is used for blowing sputum to the trachea of the patient. According to the sputum aspirator, the situation that in the prior art, cleaning work of medical staff is aggravated due to the fact that mechanical ventilation is used for enabling sputum to be discharged from a crack through the pharynx of a patient is avoided, high efficiency of sputum aspiration and sputum excretion is guaranteed, and the workload of the medical staff is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and more specifically relates to a gas-liquid shunt type tracheal catheter device. Background Art

[0002] In the current field of invasive respiratory support technology for critically ill patients, mechanical ventilation mainly relies on tracheal intubation, including tracheal intubation under tracheotomy and orotracheal / nasotracheal intubation. Technically, tracheal catheters with a balloon at the front end are generally used for both adults and children. This kind of catheter can establish an effective channel between the ventilator and the trachea and prevent air leakage, thus ensuring the smooth progress of positive pressure ventilation. However, due to the presence of relatively high positive pressure in the ventilator pipeline and the tracheal catheter throughout the entire inhalation and exhalation cycle of the patient, the mucus in the patient's alveoli, small airways, and trachea cannot be smoothly discharged outwards during the exhalation phase of the patient, resulting in the accumulation of sputum. In severe cases, sputum plugs can form, causing airway obstruction, leading to complications such as patient asphyxia and concurrent infections.

[0003] The applicant previously disclosed a composite double-layer sputum drainage type tracheal catheter device (CN216798433U). When the catheter is inserted into the patient's trachea, it not only has a ventilation function but also has a sputum suction and drainage function. When this device is applied, the subglottic sputum suction tube is used to suck sputum into the tracheal catheter, and then the sputum is sucked into the external sputum drainage tube through the sputum drainage holes in the tracheal catheter. However, it cannot achieve gas-liquid separation from the end of the tracheal catheter to the sputum drainage holes in the tracheal catheter, which easily affects the ventilation volume of the respiratory channel established by the tracheal catheter. And when it is used, it is necessary to control the inflation and deflation of the inflatable balloon frequently, so that part of the sputum moves from the gap to the patient's pharynx and is discharged, which requires medical staff to clean the sputum flowing out of the patient in a timely manner. However, due to the setting of the tracheal catheter, the cleaning is very inconvenient, the workload is relatively high, and it is easy to cause pollution.

[0004] Therefore, how to provide a gas-liquid shunt type tracheal catheter device is an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0005] In view of this, the utility model provides a gas-liquid shunt type tracheal catheter device, adopting the following technical scheme:

[0006] A gas-liquid shunt type tracheal catheter device, comprising a tracheal catheter, a sputum drainage tube, a blowing tube, a balloon and a balloon catheter; the lower end of the tracheal catheter extends deep into the patient's trachea, and the upper end is connected to a ventilator; the sputum drainage tube is sleeved on the upper side of the outer part of the tracheal catheter and extends downward to the lower part of the glottis; the upper end of the sputum drainage tube is connected to a sputum storage tank through a negative pressure mechanism, and the lower end opening is provided with an external sputum suction port; the balloon is arranged outside the upper part of the lower end of the sputum drainage tube, and the upper end is connected to the balloon catheter and inflated through the balloon catheter; the blowing tube is arranged between the sputum drainage tube and the tracheal catheter, the upper end is connected to an external air supply mechanism, and the lower end extends below the balloon for blowing air into the patient's trachea to blow the sputum.

[0007] Further, the opening of the external sputum suction port is inclined, which is convenient for sputum to enter and avoids damage to the patient's trachea caused by the opening edge during the insertion of the tube.

[0008] Further, the lower end of the sputum drainage tube is circumferentially arranged as a rigid pipe orifice along the circumference of the tracheal catheter, and the external sputum suction port is arranged at the rigid pipe orifice.

[0009] Further, the blowing tube is divided into upper and lower sections. The upper section is fixedly arranged on one side of the sputum drainage tube, extends upward from the lower end of the balloon through the sputum drainage tube, and is connected to an external air supply mechanism through a connector; the lower section is sleeved on the outer part of the tracheal catheter and extends downward from the inside of the rigid pipe orifice of the sputum drainage tube at the lower end of the balloon to above the lower end of the tracheal catheter.

[0010] Further, a gas blowing film is circumferentially arranged on the side wall of the lower end of the blowing tube, and a plurality of short blowing tubes are circumferentially arranged at a position above the middle of the gas blowing film.

[0011] Further, a soft pad is arranged in the middle of the outer side of the sputum drainage tube for fixing on the patient's tongue and lower lip; a plurality of anti-slip strips are arranged on the lower end face of the soft pad, which is bent and protruded from the middle to both sides, and the front part protrudes out of the oral cavity and is bent downward.

[0012] Further, a plurality of end sputum suction holes are circumferentially arranged at the lower end of the tracheal catheter, and a plurality of internal sputum drainage holes are also arranged above the glottis, and the internal sputum drainage holes communicate the tracheal catheter with the sputum drainage tube.

[0013] The beneficial effects of the utility model are as follows:

[0014] The utility model provides a gas-liquid shunt type tracheal catheter device. By setting a double-layer structure, the functions of breathing and sputum aspiration are separated. The outer layer structure is used for sputum aspiration and expectoration, reducing the influence of negative pressure and sputum bubbles during sputum aspiration on the ventilation volume of the breathing channel established for the patient. At the same time, the end sputum aspiration hole and the outer sputum aspiration port are used to aspirate sputum simultaneously. The outer sputum aspiration port is arranged below the balloon, using the balloon to block the continuous upward movement of sputum, and using the outer sputum aspiration port to complete the aspiration of all sputum in the trachea, avoiding the frequent inflation and deflation of the balloon, and also avoiding the situation in the prior art where mechanical ventilation is used to discharge sputum from the gap through the patient's pharynx, which aggravates the cleaning work of medical staff. It not only ensures the high efficiency of sputum aspiration and expectoration but also reduces the workload of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0017] Figure 2 It is a schematic diagram of the structure after the inflation of the air-blowing film of the present utility model.

[0018] Among them, in the figure:

[0019] 1 - Negative pressure mechanism; 2 - Connector; 3 - Balloon catheter; 4 - Tracheal catheter; 5 - Sputum drainage tube; 6 - Blowing tube; 7 - Glottis line; 8 - Inner sputum aspiration hole; 9 - Balloon; 10 - Outer sputum aspiration port; 11 - Air-blowing film; 12 - Short blowing tube; 13 - Soft pad; 14 - End sputum aspiration hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0021] Please refer to the attached Figure 1-2, the present utility model provides a gas-liquid shunt type tracheal catheter device, which is provided with a double-layer catheter mode. The inner layer passes the oxygen used for breathing to supply breathing for patients; the outer layer is used for sputum drainage and blowing; it includes a tracheal catheter 4, a sputum drainage tube 5, a blowing tube 6, a balloon 9 and a balloon catheter 3. The lower end of the tracheal catheter 4 extends deep into the patient's trachea, and a plurality of end sputum suction holes 14 are circumferentially arranged at the lower end; the upper end is connected to a ventilator to provide respiratory support.

[0022] A plurality of inner sputum suction holes 8 are also arranged above the glottis line 7 of the tracheal catheter 4 to connect the tracheal catheter 4 with the sputum drainage tube 5.

[0023] The sputum drainage tube 5 is sleeved on the upper side of the outside of the tracheal catheter 4 and extends downward to below the glottis line 7; the upper end of the sputum drainage tube 5 bifurcates to one side and is connected to a sputum storage tank through a negative pressure mechanism 1; the lower end of the sputum drainage tube 5 is circumferentially arranged as a rigid pipe orifice along the tracheal catheter 4, and an outer sputum suction port 10 is arranged at the opening. The outer sputum suction port 10 is inclined to facilitate the entry of sputum and avoid damage to the patient's trachea by the opening edge during the insertion of the tube.

[0024] The balloon 9 is arranged on the outer side above the lower end of the sputum drainage tube 5, so that the outer sputum suction port 10 is located below the balloon 9; the upper end of the balloon 9 is connected to the balloon catheter 3 and is inflated through the balloon catheter 3.

[0025] The blowing tube 6 is arranged between the sputum drainage tube 5 and the tracheal catheter 4 and is divided into upper and lower sections. The upper section is a thin tube fixed on one side of the sputum drainage tube 5 and extends upward from below the balloon 9 through the sputum drainage tube 5 and is connected to an external air supply mechanism through a joint 2. The lower section is a thick tube sleeved on the outside of the tracheal catheter 4 and extends downward from the inside of the rigid pipe orifice of the sputum drainage tube 5 below the balloon 9 to above the end sputum suction hole 14.

[0026] A blowing film 11 is circumferentially arranged on the side wall of the lower section of the blowing tube 6 near one end of the end sputum suction hole 14. It has a certain elasticity and can expand with the increase of air pressure; a plurality of short blowing tubes 12 are circumferentially arranged at a position above the middle of the blowing film 11.

[0027] The upper end of the blowing tube 6 is connected to an air supply mechanism. After starting the air supply mechanism, gas can blow sputum towards the patient's trachea through the short blowing tubes 12; after increasing the air pressure in the tube, the blowing film 11 bulges outwards, making the short blowing tubes 12 at the position above the middle tilt upwards, so that the short blowing tubes 12 blow sputum obliquely upwards to move it towards the upper outer sputum suction port 10. The upper end of the blowing tube 6 can also be connected to a liquid supply mechanism, and a small amount of physiological saline or expectorant can be injected into the patient's trachea through the short blowing tubes 12, making the thicker and more sputum flow more smoothly. A small amount of physiological saline or expectorant enters the sputum drainage tube 5 through negative pressure and can also be used to clean the sputum attached to the inner wall of the sputum drainage tube 5 to achieve a cleaning effect.

[0028] The device is also provided with a soft pad 13 in the middle, which can be fixed to the patient's tongue and lower lip; a plurality of anti-slip strips are arranged on the lower end surface of the soft pad 13, and the middle part is bent and protruded from both sides to increase the contact area with the tongue coating; the front part of the soft pad 13 protrudes out of the oral cavity and is bent downward, which can not only fix the tracheal catheter to avoid displacement but also relieve the discomfort of the patient and prevent the patient from biting the tracheal catheter and causing injury in the unconscious state.

[0029] The present invention provides a gas-liquid shunt type tracheal catheter device. The whole tracheal catheter is made of a flexible material and can be bent at a certain angle. During use, the patient's posterior neck is elevated to expose the glottis, and the device is inserted into the patient's trachea. The glottis line 7 is flush with the patient's glottis. The balloon 9 is inflated through the balloon catheter 3 so that the lower end of the device is fixed in the patient's trachea, and the upper part is moved so that the soft pad 13 is placed on the patient's tongue and lower lip; the upper end of the tracheal catheter 4 is connected to a ventilator to create a respiratory passage for the patient. When there is sputum in the patient's trachea, the negative pressure mechanism 1 is activated, and the sputum in the patient's trachea moves upward. Part of the sputum is sucked through the end suction hole 14, and then through the inner sputum discharge hole 8, and the sputum is concentrated in the sputum storage tank through the sputum discharge pipe 5. When there is a large amount of sputum in the patient's trachea and all the sputum cannot be sucked through the end suction hole 14, after continuing to move upward through the end suction hole 14, the external air supply mechanism connected to the blowing pipe is activated to blow air to the tracheal wall of the patient, and the sputum discharge pipe 5 with negative pressure is used to promote the movement of the sputum; after the sputum passes over the air-blowing membrane 11, the air pressure in the blowing pipe 6 can be increased, so that the blowing short pipe 12 is tilted, and the sputum is blown obliquely upward to make the sputum move toward the external suction port 10, and finally enter the negative pressure sputum discharge pipe 5 through the external suction port 10 and be concentrated in the sputum storage tank through the sputum discharge pipe 5. When the sputum in the sputum discharge pipe 5 is viscous and adheres to the pipe wall more, a small amount of physiological saline can be injected into the sputum discharge pipe 5 by disconnecting the negative pressure mechanism 1 to wash the pipe wall of the sputum discharge pipe 5, which can achieve a washing effect, and then the negative pressure mechanism 1 is connected to make the thin sputum and water flow out of the sputum discharge pipe 5 to achieve the effect of cleaning the pipe wall of the sputum discharge pipe.

[0030] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and reference can be made to the description in the method part for the relevant parts.

[0031] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather should be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gas-liquid shunt type tracheal catheter device, characterized in that It includes a tracheal catheter (4), a sputum drainage tube (5), a blowing tube (6), a balloon (9) and a balloon catheter (3); the lower end of the tracheal catheter (4) extends deep into the patient's trachea, and the upper end is connected to a ventilator; the sputum drainage tube (5) is sleeved on the upper side of the outside of the tracheal catheter (4) and extends downward to the lower part of the glottis line (7); the upper end of the sputum drainage tube (5) is connected to a sputum storage tank through a negative pressure mechanism (1), and the lower end is provided with an external sputum suction port (10) at the opening; the balloon (9) is arranged outside and above the lower end of the sputum drainage tube (5), and the upper end is connected to the balloon catheter (3) and inflated by the balloon catheter (3); the blowing tube (6) is arranged between the sputum drainage tube (5) and the tracheal catheter (4), the upper end is connected to an external air supply mechanism, and the lower end extends below the balloon (9) for blowing air into the patient's trachea to blow the sputum.

2. The gas-liquid shunt type tracheal catheter device according to claim 1, characterized in that The opening of the external sputum suction port (10) is inclined, which is convenient for sputum to enter and avoids damage to the patient's trachea caused by the opening edge during the insertion of the tube.

3. The gas-liquid separation type tracheal catheter device according to claim 1, characterized in that, The lower end of the sputum drainage tube (5) is provided with a rigid pipe orifice along the circumferential direction of the tracheal catheter (4), and the external sputum suction port (10) is arranged at the rigid pipe orifice.

4. The gas-liquid separation type tracheal catheter device according to claim 3, wherein, The blowing tube (6) is divided into upper and lower sections. The upper section is fixedly arranged on one side of the sputum drainage tube (5), extends upward from the lower end of the balloon (9) through the sputum drainage tube (5), and is connected to an external air supply mechanism through a joint (2); the lower section is sleeved on the outside of the tracheal catheter (4) and extends downward from the inside of the rigid pipe orifice of the sputum drainage tube (5) at the lower end of the balloon (9) to above the lower end of the tracheal catheter (4).

5. The gas-liquid shunt type tracheal catheter device according to claim 1, wherein, The side wall of the lower end of the blowing tube (6) is provided with an air-blowing film (11) along the circumferential direction, and a plurality of blowing short tubes (12) are arranged along the circumferential direction at a position above the middle of the air-blowing film (11).

6. The gas-liquid separation type tracheal catheter device according to claim 1, characterized in that, A soft pad (13) is arranged in the middle of the outside of the sputum drainage tube (5) for fixing at the patient's tongue and lower lip; a plurality of anti-slip strips are arranged on the lower end surface of the soft pad (13), the middle part is bent and protrudes outwards on both sides, and the front part protrudes out of the oral cavity and is bent downward.

7. The gas-liquid shunt type tracheal catheter device according to claim 1, characterized in that, A plurality of end sputum suction holes (14) are arranged along the circumferential direction at the lower end of the tracheal catheter (4), and a plurality of internal sputum drainage holes (8) are also arranged above the glottis line (7), and the internal sputum drainage holes (8) communicate the tracheal catheter (4) with the sputum drainage tube (5).

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