CN211272984U

CN211272984U - Bronchial intubation catheter for newborn

Info

Publication number: CN211272984U
Application number: CN201922288372.XU
Authority: CN
Inventors: 章征兵; 万彩云
Original assignee: JIANGXI CHILDREN HOSPITAL
Current assignee: JIANGXI CHILDREN HOSPITAL
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-08-18
Anticipated expiration: 2029-12-19

Abstract

A bronchial intubation catheter for neonates, which relates to the technical field of medical instruments; it comprises a tracheal catheter, a shaping part integrated with the tracheal catheter, a side hole and a catheter joint; one end of the tracheal catheter is integrally connected with a shaping part, a side hole is formed in the surface of the shaping part, and the other end of the tracheal catheter is connected with a catheter joint; the length h of the shaping part is 1 cm; the angle between the shaping part and the tracheal catheter is the shaping angle alpha of the tracheal catheter, the inner diameter of the tracheal catheter is b, and the shaping angle alpha = Sin b/h. The utility model discloses an increase the endotracheal tube of moulding portion and just can pass through the bronchus, the length of moulding part just adapts to neonate's bronchus length, can increase the stability of bronchus intubate ventilation in-process, is difficult for producing the risk that shifts and deviate from, so increase the endotracheal tube of moulding portion afterwards and can obviously improve neonate's bronchus intubate's success rate and stability under the supplementary condition of special equipment not needed.

Description

Bronchial intubation catheter for newborn

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to neonate's trachea cannula pipe.

Background

In recent years, the number of neonatal thoracoscopic surgeries is increasing year by year, the requirement on anesthesia is higher and higher, and the traditional method for assisting artificial pneumothorax by endotracheal intubation has a plurality of defects, the most prominent defects comprise insufficient lung collapse and small operation space, and the operation is greatly influenced. So in order to create a better surgical space, one lung ventilation must be performed. The current methods for achieving single lung ventilation in adults mainly include double lumen tubes, univent single lumen double sac tubes, bronchial occluders and common tracheal tubes, but these methods are not suitable for use in neonates. The minimum model of the double-cavity tube is 26F, and the double-cavity tube can only be used for children patients over 8 years old; the univent single-cavity double-sac tube is ID3.5 at the minimum, and can only be used for children patients over 6 years old; bronchial occluders and common catheters must be assisted by special equipment such as bronchofiberscopes, and have limited application in neonates. Wherein the insertion of a common tracheal tube into the bronchus to achieve single lung ventilation is the most common way for children. However, due to the factors of airway anatomy, the included angle between the main trachea and the left main trachea is 54.3 degrees +/-1.90 degrees (35.50-64.00 degrees); the included angle between the right main bronchus and the right main bronchus is 24.52 degrees +/-2.10 degrees (15.00-42.50 degrees); the lengths of the left and right bronchi of the neonate are 14.1 + -3.1 (11.2-23.2) mm and 10.6 + -1.2 (8.1-12.5) mm respectively. That is, it is easy to insert a general catheter into the right main bronchus, but it is difficult to insert the catheter into the left side; meanwhile, the length of the left bronchus and the right bronchus of the newborn is limited, so that the bronchus can be easily slid and shifted when a common trachea catheter is used for performing the bronchus intubation.

In summary, the problems of the prior art are as follows: at present, due to the factors of airway anatomy, the implementation of bronchial intubation on neonates is difficult.

Disclosure of Invention

The utility model aims to provide a neonate's bronchus intubation tube with simple structure, reasonable design and convenient use aiming at the defects and insufficiencies of the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme: it comprises a tracheal catheter, a shaping part integrated with the tracheal catheter, a side hole and a catheter joint; one end of the tracheal catheter is integrally connected with a shaping part, a side hole is formed in the surface of the shaping part, and the other end of the tracheal catheter is connected with a catheter joint; the length h of the shaping part is 1 cm; the angle between the shaping part and the tracheal catheter is the shaping angle alpha of the tracheal catheter, the inner diameter of the tracheal catheter is b, and the shaping angle alpha = Sinb/h.

Further, the shaping angle alpha is 15-20 degrees.

After the structure is adopted, the utility model discloses the beneficial effect who produces does: the utility model is characterized in that the tracheal catheter of the shaping part is added to just pass through the bronchus, so that the tracheal wall is not damaged due to the overlarge angle of the shaping part, and the bronchus is difficult to enter the target bronchus due to the undersize angle; and the length of its moulding part just adapts to neonate's bronchus length, can increase the stability of bronchus intubate ventilation in-process, is difficult for producing the risk that shifts and deviate from, so increase the later endotracheal tube of moulding portion and can obviously improve neonate's bronchus intubate's success rate and stability under the supplementary condition of special equipment not needing, the utility model has the advantages of simple structure, set up rationally, the cost of manufacture low.

Drawings

FIG. 1 is a block diagram of the present invention;

fig. 2 is a schematic diagram of the calculation parameters of the shaping angle α of the present invention.

Description of reference numerals:

a tracheal catheter 1, a shaping part 2, a side hole 3 and a catheter joint 4.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Referring to fig. 1, the following technical solutions are adopted in the present embodiment: it comprises a tracheal catheter 1, a shaping part 2 integrated with the tracheal catheter, a side hole 3 and a catheter joint 4; one end of the tracheal catheter 1 is integrally connected with a shaping part 2, a side hole 3 is arranged on the surface of the shaping part 2, and the other end of the tracheal catheter 1 is connected with a catheter joint 4; the length h of the shaping part 2 is 1 cm.

The angle between the shaping part 2 and the tracheal catheter 1 is the shaping angle α of the tracheal catheter 1, the inner diameter of the tracheal catheter 1 is b, and the shaping angle α = Sin b/h.

The moulding portion 2 of head end of endotracheal tube 1 is partial to target collateral trachea, and the distance control of moulding portion 2 from the head end is at 1cm, and moulding angle alpha is calculated according to the formula and is: the inner diameter of the tracheal catheter is 2.5 degrees; 3.0 tracheal tube at 20 degrees; the tracheal tube of 3.5 was 21 degrees.

The working principle of the specific embodiment is as follows: selecting a tracheal catheter which is 0.5 th smaller than a normal tracheal catheter, adding a shaping part 2 to the tracheal catheter 1, wherein the shaping part is positioned at the head end of the tracheal catheter 1, even if the head end of the tracheal catheter 1 deflects to a target side bronchus, the distance between the deflection part of the catheter and the head end, namely the length h of the shaping part 2, is controlled to be 1cm (according to the anatomical characteristics of a neonatal bronchus), the deflection angle is calculated according to a formula (wherein B is the size of the inner diameter of the catheter, h is the 1cm of the deflection part of the catheter, and an angle C is a right angle, the size of an angle B is calculated through the value of Sin B/h, and the angle B is the angle alpha required for shaping of the catheter, referring to fig. 2, so that the angle of the shaped tracheal catheter just can pass through the bronchus, the tracheal wall cannot be damaged due to the overla.

The intubation method of the present embodiment: the tracheal catheter is inserted into the trachea, the natural bending amplitude of the tracheal catheter is upward, and after the tracheal catheter passes through the glottis, the tracheal catheter is rotated by 90 degrees towards the target collateral bronchus and is continuously inserted downwards until obvious resistance stops.

After adopting above-mentioned structure, this embodiment produces beneficial effect does: according to the bronchial intubation tube for the neonate, the tracheal tube additionally provided with the shaping part can just pass through the bronchus, so that the tracheal wall is not damaged due to the overlarge angle of the shaping part, and the bronchus cannot enter a target bronchial tube due to the undersize angle; and the length of its moulding part just adapts to neonate's bronchus length, can increase the stability of bronchus intubate ventilation in-process, is difficult for producing the risk that the aversion is deviate from, so increase the endotracheal tube behind the moulding portion and can obviously improve neonate's bronchus intubate's success rate and stability under the supplementary condition of special equipment not needing, this embodiment has simple structure, sets up reasonable, cost of manufacture low grade advantage.

The basic principles and main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Neonate's endotracheal intubation pipe, its characterized in that: it comprises a tracheal catheter, a shaping part integrated with the tracheal catheter, a side hole and a catheter joint; one end of the tracheal catheter is integrally connected with a shaping part, a side hole is formed in the surface of the shaping part, and the other end of the tracheal catheter is connected with a catheter joint; the length h of the shaping part is 1 cm; the angle between the shaping part and the tracheal catheter is the shaping angle alpha of the tracheal catheter, the inner diameter of the tracheal catheter is b, and the shaping angle alpha = Sin b/h.

2. The neonatal bronchial intubation tube of claim 1, wherein: the shaping angle alpha is 15-20 degrees.