CN110585544A - Endotracheal tube with adjustable internal diameter - Google Patents

Abstract

The invention belongs to the field of medical devices, and in particular relates to a tracheal catheter with an adjustable inner diameter, which includes a patient insertion end and a tube body. The balloon is inflated or deflated to adjust the size of the inner diameter of the patient insertion end. Therefore, using a tracheal tube with an adjustable inner diameter can adjust the inner diameter of the patient's insertion end in the tracheal tube according to the patient's condition, which greatly shortens the time for medical staff to choose the model of the tracheal tube, and at the same time reduces the difficulty of intubation and ensures the supply of oxygen and smooth clearance of airway secretions.

Description

An adjustable endotracheal tube

technical field

The invention relates to the field of medical devices, in particular to a trachea tube with adjustable inner diameter.

Background technique

Endotracheal intubation refers to the technique of inserting a special endotracheal tube into the trachea through the glottis. It is an important technique to ensure unobstructed airway, effective ventilation and oxygen supply and avoid aspiration in emergency and general anesthesia. At present, most medical staff choose the type of endotracheal tube according to their age, which not only consumes the rescue time easily, but also the glottis or trachea of each patient is different, and it is impossible to adjust the inner diameter of the endotracheal tube according to the patient's condition during clinical operation . At the same time, if the endotracheal tube is too thin, it cannot guarantee the oxygen supply and the clearance of airway secretions, and if it is too thick, it may easily cause damage to the glottis and tracheal mucosa and make it difficult to pass through the stenosis, which brings great challenges to medical staff and great pain to patients. .

Contents of the invention

In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a tracheal tube with an adjustable inner diameter, which can adjust the inner diameter of the patient's insertion end in the tracheal tube according to the patient's situation, greatly shortening the time for medical staff to choose the type of tracheal tube; It reduces the difficulty of intubation and ensures the supply of oxygen and the smooth removal of airway secretions. It is achieved through the following technical solutions:

An endotracheal tube with adjustable inner diameter, including a patient insertion end and a tube body, the patient insertion end is sequentially spliced and fixed by multiple catheter pieces and balloons, and the inner diameter of the patient insertion end is adjusted by inflating or pumping the air bag the size of.

Further, the number of the catheter piece and the balloon is 3-6.

Further, the catheter sheet is hollow, and a communication port is provided between the catheter piece and the air bag.

Further, a cuff is sheathed on the outside of the tubular body near the insertion end of the patient.

Further, the pipe body includes a pipe and a pipe wall, and the pipe wall is hollow.

Further, the air bag is connected to an inflation tube, and the inflation tube passes through the hollow part of the tube wall.

Further, before the endotracheal tube is inserted into the trachea, the gas of the balloon is drawn out through the inflatable tube, and the inner diameter of the insertion end of the patient becomes smaller along with the balloon; The inner diameter of the patient insertion end becomes larger as the balloon is inflated.

Compared with the prior art, this technical solution has the following beneficial effects:

(1) This technical solution adopts a tracheal tube with an adjustable inner diameter, which can pump or inflate the balloon according to the patient's condition to change the inner diameter of the patient's insertion end, which greatly shortens the time for medical staff to choose the model of the tracheal tube, and when the balloon is pumped It can make it easier to push the endotracheal tube into the stenosis of the airway, thereby reducing the difficulty of intubation. When the balloon is deflated, it can ensure the supply of oxygen and the smooth removal of airway secretions;

(2) The catheter piece of this technical solution is set in a hollow shape, and there is a flow port between the airbag and the airbag. First, the air pressure between the catheter piece and the airbag can be kept consistent during inflation or pumping, and the diameter of the tube becomes smaller or smaller uniformly. The second is that when there are multiple catheter pieces connected to multiple air bags, the inflation tube can only be connected to one air bag, which can achieve the best effect at the lowest cost.

Description of drawings

Fig. 1 is a schematic structural view of an endotracheal tube with an adjustable inner diameter according to the present invention;

Fig. 2 is a state diagram of air bag pumping in an endotracheal catheter with adjustable inner diameter of the present invention;

Fig. 3 is a state diagram of balloon inflation in an endotracheal tube with adjustable inner diameter according to the present invention;

Fig. 4 is a schematic structural view of a patient insertion end of an endotracheal tube with an adjustable inner diameter according to the present invention;

Fig. 5 is a cross-sectional view of an endotracheal tube with an adjustable inner diameter according to the present invention.

The reference signs in the drawings of the description include: 100-patient insertion end; 110-catheter sheet; 120-balloon; 200-tube body; 210-cuff;

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only part of the embodiments of the present invention, not all embodiments, based on The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top/bottom" etc. are based on the orientations shown in the drawings Or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installed", "set with", "sleeved/connected", "connected", etc. should be understood in a broad sense, such as " Connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal connection between two components. connectivity. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

The present invention will be described in further detail below by means of specific embodiments:

As shown in Figures 1-4, an endotracheal tube with adjustable inner diameter includes a patient insertion end 100 and a tube body 200. The patient insertion end 100 is sequentially spliced and fixed by a plurality of catheter pieces 110 and balloons 120, wherein the patient inserts The end 100 is the end that enters the patient's mouth or nostrils, and preferably, a collar can be sleeved on its outside for fixation. Catheter sheet 110 and air bag 120 are all elastic materials, so the size of the inner diameter of the patient's insertion end 100 can be adjusted by inflating or pumping air to the air bag 120, and the medical staff can adjust the size of the inner diameter according to the specific conditions of the patient, shortening the The time for judging and selecting the model of the endotracheal tube can also realize mass and large-scale production, thereby reducing the overall manufacturing cost.

In this embodiment, the catheter piece 110 is hollow, and there is a communication opening between the catheter piece 110 and the air bag 120, which helps to keep the airflow and air pressure between the catheter piece 110 and the air bag 120 consistent during inflation or pumping, and the tube diameter Uniformly get smaller or bigger. The number of catheter sheets 110 and balloons 120 can be between 3 and 6, and the number of balloons 120 can be adjusted according to the size of the catheter. In a preferred embodiment, the number of catheter sheets 110 and balloons 120 is 3 One, can achieve the effect of the balance of gas circulation.

As shown in FIG. 5 , a cross-sectional view of an endotracheal tube with an adjustable inner diameter, the tube body 200 is sheathed with a cuff 210 near the patient's insertion end 100, and also includes a tube 220 and a tube wall 230, wherein the tube wall 230 is hollow Inflatable tube 300 passes through the hollow part, and one end of the inflatable tube 300 is connected to the airbag 120, and the other end is provided with an interface to connect with related equipment, so as to pump or inflate the airbag 120. Preferably, a communication port is provided between the catheter piece 110 and the airbag 120, so only one inflation tube 300 can be connected to inflate the airbag, and the best effect can be achieved at the lowest cost.

To sum up, as shown in FIG. 1, it is the general state of the inner diameter of the insertion end 100 of a patient with an endotracheal tube; as shown in FIG. The inflatable tube 300 pumps out the gas of the air bag 120, and the inner diameter of the patient's insertion end 100 becomes smaller with the air bag 120, which can make it easier to push the endotracheal tube into the narrow place of the airway, thereby reducing the difficulty of intubation; as shown in Figure 3, it is an endotracheal tube When the inner diameter of the patient insertion end 100 becomes larger, when the endotracheal tube is positioned in the trachea, the air bag 120 is inflated through the inflation tube 300, and the inner diameter of the patient insertion end 100 becomes larger with the air bag 120, which can ensure oxygen supply and smooth clearance of airway secretions.

The above description is only a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Anyone familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention and its improved concept to make equivalent replacements or changes shall fall within the scope of protection of the present invention.

Claims (7)

1. The utility model provides an endotracheal tube with adjustable internal diameter, includes that the patient inserts end (100) and body (200), its characterized in that, patient inserts end (100) and splices fixedly in proper order by a plurality of pipe pieces (110) and gasbag (120) and forms, through to gasbag (120) aerify or bleed and adjust the size that the internal diameter was inserted to the patient inserted end (100).

2. An inner diameter adjustable endotracheal tube according to claim 1, characterized in that the number of the duct pieces (110) and the balloons (120) is 3 ~ 6.

3. An adjustable inner diameter endotracheal tube according to claim 1, characterized in that the tube sheet (110) is hollow and has a communication opening with the balloon (120).

4. An adjustable inner diameter endotracheal tube according to claim 1, characterized in that the tube body (200) is externally sleeved with a cuff (210) near the patient insertion end (100).

5. An inner diameter adjustable endotracheal tube according to claim 1, characterized in that the tube body (200) comprises a duct (220) and a tube wall (230), the tube wall (230) being hollow.

6. An inner diameter adjustable endotracheal tube according to claim 1, characterized in that an inflation tube (300) is connected to the balloon (120), and the inflation tube (300) passes through a hollow portion of the tube wall (230).

7. An inner diameter adjustable endotracheal tube according to claim 1, characterized in that before the endotracheal tube is inserted into the trachea, the gas of the cuff (120) is evacuated through the inflation tube (300), and the inner diameter of the patient insertion end (100) becomes smaller as the cuff (120); when the endotracheal tube is positioned in the trachea, the balloon (120) is inflated by the inflation tube (300), and the inner diameter of the patient insertion end (100) becomes larger as the balloon (120) is larger.