KR102049548B1 - Y shaped Bronchial suction catheter - Google Patents

Abstract

The present invention relates to a suction catheter for removing sputum, which is economical and convenient for patients requiring artificial sputum discharge, and more particularly, in a suction catheter used to suck and remove sputum of a patient, It is equipped with a connection part and a negative pressure control part, the main tube having a Y-shaped branch formed at the lower end, and the upper end connected to the Y-shaped branch of the main tube respectively, and the terminal can be cut out and used according to the anatomical characteristics of the patient's lung. A suction catheter for simultaneous suction of both lungs, characterized in that it comprises two branch tubes long enough to be present.

Description

Y shaped Bronchial suction catheter

The present invention relates to a suction catheter for removing sputum, and more particularly, to a suction and catheter for removing sputum, which is economical and convenient for patients requiring artificial sputum discharge.

Secretions from the lungs or bronchi of healthy people (commonly called sputum) can be removed through mucus cilia and cough reflexes. However, in patients with respiratory organs, the secretion becomes too much or becomes more viscous and is not enough to be discharged in the normal way, and the secretion accumulates in the lungs or bronchus. This discharge of the lungs or airways is dangerous because it can block the patient's breathing and cause bacterial infection.

The method of discharging sputum is known as a position therapy such as inverting the upper body so that the sputum can flow out by gravity, and a vibration therapy that allows sputum to be discharged through vibration using a massager or a vibrator together with a position therapy or separately. have. However, this method is possible when the patient's condition is relatively good.

Behavior of patients with tracheostomy or tracheal intubation, patients with pneumonia, acute respiratory failure, sequelae of pneumonia, mucus impaction, neurology, neurosurgery, rehabilitation medicine Patients with large or high viscosity sputum secretion that are impossible or unbearable by position therapy or vibration therapy require continuous or periodic artificial sputum discharge by forced suction.

Inhalation therapy includes a suction catheter method and a bronchoscope. The former is to remove the secretions in the trachea or bronchus relatively easily, the latter is a procedure performed by a specialist when the discharge to the lower lobe of the lungs.

Conventional suction catheter is made of a thin tube of a material having a suitable flexibility is provided with one or a plurality of suction holes on the top, the other side is equipped with a negative pressure control unit and a connection, as shown in the conceptual diagram and the actual picture attached to Figure 1a. . The connecting portion is coupled to the aspirator via a predetermined tube. In use, negative pressure is formed in the tube by blocking or opening the negative pressure control unit, and the discharge is discharged into the suction bottle at the front of the aspirator through the suction hole. In practice, suction catheter is inserted through the nose or mouth or through the tube in the case of an airway incision patient (see FIG. 1B). However, in the conventional suction catheter, only the removal of secretions in the trachea (trachea) in mind, since the length of the tube is short, it is difficult to reach the lower lobe of both lungs where the secretions are actually accumulated, and in many cases, the removal of secretions is not effective. Even if a long suction catheter is inserted in a blind state, it is very difficult to insert the suction catheter into the lung in a desired direction. Since the diameter of the right airway (bronchi) is larger and closer to the vertical, most of the suction catheters inserted are known to go to the right lung. Therefore, the reality is that it is very difficult to remove the secretion of the left lung.

Therefore, it is common to use a bronchoscope with suction function, especially for the removal of secretions in the lower lobe of the left lung. However, bronchoscopy requires much time and money because of the need for specialized personnel such as respiratory physicians, nurses, and bronchoscopy equipment. Therefore, even if necessary patients often have a difficult point.

PCT / US2014 / 029265 (Korean Patent Publication No. 10-2015-0140295) has two catheters having bent ends at one end in the intubation-envelope to insert an endotracheal intubation into the trachea, and then manipulate each catheter left and right. A suction catheter device that can be inserted into the bronchus is shown (see FIG. 2A). According to this, as shown in FIG. 2B, the end of each catheter is bent, the cross section of the catheter end is half-moon shaped, and the end of the endotracheal intubation has a joint corresponding to the cross section of each catheter, so that the direction of the end of each catheter is Y-shaped. Is fixed. When the endotracheal intubation of the device is inserted into the trachea of the patient, each catheter end (shown in red) is placed toward the left and right bronchus as shown in FIG. 2C. However, according to this, since the end of each catheter is difficult to be arranged in the direction of the left and right bronchus as shown in FIG. 2C, the direction is controlled by adjusting a joint connected to the ventilation adapter.

Such catheter devices require specially structured components (half-moon and flexible tubes, joint-joint fittings with two half-moon openings, structures for rotating joint fittings, etc.), and the device is very complex It is not convenient for use.

Furthermore, the catheter is embedded in the endotracheal intubation, the cross-section of the catheter is half-moon-shaped, and the torsion or bending of the catheter is prevented, so the distal end of the catheter is substantially hard. There is also concern.

On the other hand, the anatomical view of the bronchial branching system in the respiratory tract is divided into right and left main bronchus in the tracheal branch of the lower part of the trachea. The right main bronchus is first divided into the right upper lobe bronchus and the right bronchus intermedius, and the right middle bronchus is divided into the right middle lobe bronchus and the right lower lobe bronchus. The left main bronchus, on the other hand, is immediately divided into the left upper lobe bronchus and the left lower lobe bronchus. The trachea is 11-13 cm long and 1.5-2.5 cm in diameter for adults. The right main bronchus is inclined about 20-25 ° with respect to the vertical, and the length from the tracheal branch to the bottom of the right lower lobe bronchus is 7-10 cm. The left main bronchus is inclined about 40-50 ° from the vertical, and the length from the tracheal branch to the bottom of the left lower lobe bronchus is approximately 8-10 cm. (see http://www.bronchotraining.org/spip.php?article11)

However, to date, no suction catheters are known considering the anatomical characteristics of the bronchial branching system of both lungs.

PCT / US2014 / 029265

http://www.bronchotraining.org/spip.php?article11

It is an object of the present invention to provide an economical and easy-to-use sputum removal catheter for sputum discharge in a patient's lung.

The present invention for achieving the above object

A suction catheter used to aspirate and remove a patient's sputum, the upper part of which is connected to a suction unit and a negative pressure control part, a main tube having a Y-shaped branch formed at the lower end, and a Y of the main tube It is characterized by a suction catheter for simultaneous suction of both lungs, each of which is connected to the basin and includes two branch tubes long enough to cut and use the terminal according to the anatomical characteristics of the patient's lung.

As described above, according to the present invention, it is possible to simultaneously process sputum of both lower lobe bronchus, which was difficult to remove with the conventional catheter, with a single insertion, thereby reducing the load on the patient and allowing the medical staff to conveniently perform the sputum discharge procedure.

In addition, according to the present invention it is possible to provide a customized suction catheter according to the anatomical characteristics of the patient lung for each patient.

In addition, according to the present invention it is possible to discharge the sputum of the lungs simply and economically and hygienically, not by the conventional bronchoscope.

Figure 1a is a conceptual diagram and practical example of a suction catheter according to the prior art.
Figure 1b is a conceptual diagram of the use of the suction catheter according to the prior art.
Figure 2a, 2b, 2c is a conceptual diagram and a partially enlarged view of a suction catheter according to the prior art, respectively.
Figure 3a is an exemplary view of a suction catheter according to the present invention.
Figure 3b is a conceptual diagram of the process of inserting the suction catheter according to the present invention in the lung.
Figure 4 is a chest tomography image of the patient showing the state of estimating the organ system length of the patient in a patient-specific suction catheter preparation method according to the present invention.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. However, the accompanying drawings are only examples for easily describing the content and scope of the technical idea of the present invention, and thus the technical scope of the present invention is not limited or changed. It will be apparent to those skilled in the art that various modifications and variations are possible within the scope of the present invention based on these examples. In addition, when the reference numerals are attached to the components of the claims, this is for illustrative purposes only and is not intended to limit the components by the reference numerals.

In the present invention, the lower part, the lower part, the lower part, etc. mean a side or part to be inserted into the bronchus when used, and the upper part, the upper part, the upper part, etc. mean a side or part exposed to the outside when used.

As described above, the present invention, in the suction catheter used to suck and remove the sputum of the patient, the upper end is connected to the suction unit and the negative pressure control unit, the main tube is formed with a Y-shaped branch at the lower end, and the upper end A suction catheter for simultaneous suction of both lungs, each of which is connected to the Y-shaped branch of the main tube and includes two branch tubes long enough to cut and use the terminal according to the anatomical characteristics of the patient's lung. will be. In simple terms, the suction catheter according to the present invention is a Y-shaped suction catheter with a sufficiently long tube length than that used in the prior art, so that the suction catheter can be cut to an appropriate length according to the anatomical characteristics of the patient's lung in actual use. Through such a simple combination, which is not conceived in the related art, it is used in a completely different manner from the conventional suction catheter, and a completely different effect can be obtained. "Long enough" usually means about the length from the bronchus to the lower lobe of an adult or longer. Those skilled in the art will readily appreciate what is meant to be “long enough”.

An example of a suction catheter according to the present invention is shown in FIG. 3A.

As can be seen in the drawing, the suction catheter according to the present invention has a generally inverted Y-shaped structure in which a normal connection part and a negative pressure control part are mounted at an upper end, and one or a plurality of suction holes are formed at the bottom of two branch pipes. have. In the illustrated drawings, the main tubes are shown to be thicker than the branch tubes, but their diameter ratio is not essential and may be appropriately selected.

The material of the main tube and the branch tube is a plastic material such as non-toxic medical grade PVC, silicone, latex, PE, teflon, etc. which is a material of a conventional suction catheter. The outer diameter of the branch tube may also be defined in the range of 5 to 24 gauge (4.6 to 0.5 mm) as usual, but in theory it will be sufficient if it is less than 1/2 the diameter of the trachea and less than the diameter of the lower lobe bronchus. As described later, the branch tube is inserted into the bronchus-lower lobe bronchus when used, and the length of the branch tube is about 7-10 cm on the right side and about 8-10 cm on the left side. That's enough. On the other hand, the two branch pipes are connected to the main pipe, respectively, wherein the structure of the Y-shaped branch of the main pipe itself so as to resiliently move away from the branch pipe finely. In other words, if no external pressure or limitation is applied to the suction catheter according to the present invention, the two branch tubes have a 'opening elasticity' which is elastically slightly open (approximately several mm apart).

Naturally, when the suction catheter according to the present invention is applied to a patient, the inverted Y-shaped flat structure formed by the main tube and the two branch tubes should be inserted so as to match the inverted Y-shaped flat structure formed by the trachea and the two bronchus, respectively. It is introduced into the bronchus. However, when the two branch tubes enter the oral cavity, the nasal cavity or the tube, the blind state is not known, so it is not known how the inverse Y plane of the suction catheter is oriented. Therefore, in the present invention, the display unit for indicating the direction of the plane formed by the two branch pipes on the upper end of the main pipe. Accordingly, the operator may control the direction of the plane formed by the two branch tubes to be the plane formed by the bronchus of the patient (hereinafter referred to as 'alignment alignment' for convenience) with reference to the display unit. Although the illustration of the display is omitted in the drawings, for example, it may be in the form of a dot, a line, a wing, or the like printed on the top of the main tube. In some cases, the position of the sound pressure control unit may serve as a display unit.

On the other hand, the operator rotates the main tube with reference to the display unit during the procedure to match the orientation. Therefore, it is preferable that the main pipe and the branch pipe have some degree of resistance to warping. The degree of resistance to warping is sufficient so as not to prevent spontaneous opening when two branching tubes are later inserted into the two bronchus.

In the suction catheter according to the present invention, at least one of the branch pipes is bent toward the side away from the center so that the two branch pipes can be introduced into the left and right bronchus separately from the gaping elasticity. Good (see FIG. 3A). In particular, when one branch pipe end is bent, it is preferable that the one to be inserted into the left bronchus is bent. However, if the end of the branch pipe is bent out may damage the organ at the time of insertion. Therefore, it is preferable that the end of the branch pipe is designed to bend slightly back inward.

A conceptual diagram of a process of inserting a suction catheter according to the present invention into an actual lung is illustrated in FIG. 3B. For convenience, only the bronchial bronchus (upper and lower) lobe was expressed, and the upper portion of the suction catheter was omitted. Various preparation procedures or precautions to be performed at the time of sputum aspiration are the same as those in the prior art, and thus description thereof is omitted.

First, in the case of oral cavity, nasal or airway incision patients, the two ends of the branch tube through the tube at the same time, the reference to the indicator while gradually adjusting the direction of the plane between the two branch pipes. When the end of the branch tube passes through the trachea (A in the drawing) and reaches the branch of the trachea-at this time, the branching tube is slightly open due to the opening elasticity-the open branching tube enters the right bronchus and the left bronchus, respectively (B in the drawing), It then enters the right and left lower lobe bronchus, respectively (C in the figure). Then, sputum aspiration is performed according to a conventional method. The subsequent procedure is the same as usual.

On the other hand, as described above, the length from the tracheal bifurcation to the end of the lower lobe bronchus is generally about 7-10 cm on the right side and about 8-10 cm on the left side, which is usually somewhat short on the right side. Therefore, when using the suction catheter according to the present invention, it is also good to leave a length difference of about 1 to 2 cm so as to correspond to the length of the branch pipe (not shown). For example, the lengths from the tracheal bifurcation to the left and right lower lobe bronchus are different for each patient. In this case, the length and angle of branching are estimated by referring to the chest tomography photograph of the patient (see FIG. 4). A suction catheter can be provided. For example, (A) a basal tube with a sufficiently long basic suction catheter (preparing for a suction catheter), and (B) a chest tomography of the patient, with reference to the anatomical characteristics of the patient. Estimate the length from the branch to the bottom of the left and right lower lobe bronchus (step for estimating length), and (C) at the end of the branch to fit the estimated length (e.g. 8 and 10 cm respectively for the patient of Figure 4). The patient-specific suction catheter can be made by appropriate cutting (step forming the suction hole) such as cutting after cutting (step) and (D) drilling the suction hole.

If the length of the branch pipes is different, the display unit adds information on the direction in which the lengths of the branch pipes are different. For example, when the branch pipe displays an arrow in the long direction, the orientation control is possible so that the long branch pipe can be inserted to the left.

As described above, according to the present invention, the orientation can be controlled by various methods. However, the suction catheter according to the present invention may have an additional structure to make the orientation more clear. For example, a guide tube in which the two suction pipe ends of the two branch pipes are slidably embedded may be further included (not shown). According to this, the operator inserts into the airway at the same time while the suction cavity ends of the two branch tubes are embedded in the guide tube, and stops the guide tube and pushes the catheter when the tracheal branch is reached. The two branching tubes are then exposed out of the guiding tube, open and naturally inserted into the left and right bronchus. The guide tube accommodates two branch tubes side by side, so the orientation control is very easy.

According to the present invention as described above, patients who have undergone airway incision or airway intubation, pneumonia, acute respiratory failure, pneumonia sequelae, mucus impaction, patients constantly need to discharge sputum, spontaneous sputum discharge difficult neurology, neurosurgery, rehabilitation Convenient and safe application to medicine, patients, etc. makes it possible to remove both lung secretions at the same time.

Claims (5)

A suction catheter used to aspirate and remove a patient's sputum,
Single lumen main tube made of flexible material, which is equipped with connecting part and negative pressure control part connected to aspirator at the upper part, and Y-shaped branch is formed at the lower part,
The upper and lower lungs are respectively connected to the Y-shaped branches of the main tube, and both lungs are characterized by a single lumen branch tube made of two flexible materials long enough to cut and use the ends according to the anatomical characteristics of the patient's lungs. Suction catheter for suction.
The method according to claim 1,
Suction catheter for simultaneous suction of both lungs, characterized in that the branch tube ends are spaced apart when there is no external force, the main tube and the branch tube is resistant to distortion.
The method according to claim 1,
The suction catheter for the simultaneous suction of both lungs, characterized in that the upper portion further has a display unit for indicating the direction of the plane formed by the two branch pipes.
The method according to any one of claims 1 to 3,
Suction catheter for simultaneous suction of both lungs, characterized in that the suction hole end of at least one branch pipe of the two branch pipes is bent out.
The method according to any one of claims 1 to 3,
A suction catheter for simultaneous suction of both lungs, characterized in that it further comprises a guide tube slidably embedded at least near the suction hole end of the two branch pipes.

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