CN201668832U - Ballon endotracheal tube outside the glottis - Google Patents

Abstract

The utility model discloses a balloon endotracheal tube outside the glottis, which comprises a gas tube, a balloon, and a gas-injection valve, wherein one end of the gas tube is the implantation end and the other end is connected to a cohesion tube; wherein the balloon is sleeved on the gas tube and is in sealing engagement with the gas tube, the gas-injection valve is communicated with the balloon; wherein the balloon and the implantation end of the gas tube have an end face distance from 3 cm to 6 cm. Upon using the utility model, the implantation end of the gas tube is disposed inside the trachea and the balloon is disposed outside the glottis and is in a sealing relation with the glottis, so that the balloon is not inserted to the trachea to avoid mucous membrane ischemic damage of the trachea because of balloon inflation. The fact that balloon inflation begins when the gas tube inserts to the glottis for 2 cm makes it hard for the gas tube to enter the glottis as the balloon arrives at the glottis, which guarantees a proper insertion depth. The inflated balloon of the utility model eliminates compression on trachea wall, which makes it easier for patients to endure. The pulling out of the endotracheal tube requires no need to pull out balloon gas, which makes it simple and convenient to operate.

Description

The outer air bag endotracheal tube of glottis

Technical field

This utility model relates to a kind of breathing apparatus, relates in particular to the outer air bag endotracheal tube of a kind of glottis.

Background technology

Endotracheal tube (Endotracheal Tube) resulted from for 18th century.At first, endotracheal tube is not to be with the cover capsule, and often to cause mistake to inhale incidence rate higher because of conduit and trachea bad sealing, and afterwards mainly by next pre-anti-error suction of pharyngeal cavity filling wet gauze bar and gas leakage, but effect is undesirable and complex operation.Nineteen twenty-eight Guede and Water suggestion are adopted and are had the endotracheal tube that overlaps capsule, promptly install the cover capsule at the about 2cm of distance endotracheal tube front end angle place, make endotracheal tube in trachea, form sealing through inflation, and avoid mistake suction in respiratory secretions and the anti-flow tube of gastric content.So far, the endotracheal tube structure of Shi Yonging does not change yet clinically, mainly comprise airway, air bag and gas injection valve, airway one end is a set terminal, the other end is connected with connection tube, Air sac cover is sealed and matched on airway and with airway, and the gas injection valve is communicated with air bag by air injection pipe, and the set terminal end face distance of air bag and airway is about 2cm.

The air bag of present normally used endotracheal tube is a high capacity low-pressure air bag, though this air bag has solved the defective of leaking gas and inhaling by mistake, also has following shortcoming simultaneously: the capillary blood flow of 1, blocking the tracheal mucosa that contacts with aerating gasbag easily.In theory, generally in 30mmHg, the pressure that acts on tracheal mucosa is no more than the pressure of its blood capillary (30mmHg) to the gasbag pressure after requiring to inflate, and then the local mucosa of trachea is difficult for taking place thrombosis.But hold gasbag pressure in clinical practice certain difficulty is arranged, the clinicist will watch out for local mucosa ischemia; 2, insert difficulty sometimes.Since its cover capsule fold make conduit increase thick due to; 3, using the suction anestheticing period, anesthetic gases can infiltrate in the air bag, causes that intracapsular pressure raises; 4, the time of reservation endotracheal tube is restricted.Because there is above shortcoming in endotracheal tube, in recent years, the outer artificial air flue of glottis is used in research such as laryngeal mask, larynx breather etc. become one of focus of modern anaesthesia research, though the outer artificial air flue of glottis has solved the defective of tracheal mucosa ischemia injury due to the endotracheal tube, but the defective that has gas leakage, and the airway pressure that can bear is not high, is subjected to certain limitation in clinical practice.

The utility model content

At above shortcomings part in the prior art, this utility model provides a kind of damage of eliminating the air bag of traditional endotracheal tube to tracheal wall, solves the outer air bag endotracheal tube of glottis of the defective of gas leakage and mistake suction simultaneously.

The purpose of this utility model is achieved in that the outer air bag endotracheal tube of glottis comprises airway, air bag and gas injection valve, described airway one end is a set terminal, the other end is connected with connection tube, described Air sac cover is sealed and matched on airway and with airway, described gas injection valve is communicated with air bag by air injection pipe, and the set terminal end face distance of described air bag and airway is 3cm～6cm.

Further, described air bag is a spherical structure.

Compared with prior art, this utility model is absorbing traditional endotracheal tube harmony outdoors on the basis of artificial airway's advantage, and the outer air bag endotracheal tube of the glottis of design has following advantage:

When 1, using, the set terminal of airway is inserted in the trachea, and air bag then is positioned at outside the glottis and with glottis and seals, and therefore, air bag does not insert in the trachea, avoids causing the tracheal mucosa ischemia injury because of airbag aeration.

2, it is dark or shallow excessively to avoid airway to insert.Because airway begins aerating gasbag after inserting glottis 2cm, the air bag after the inflation then is difficult to enter after arriving at glottis, therefore, can guarantee effectively that the airway insertion depth is suitable.

3, owing to eliminated the compressing of aerating gasbag to tracheal wall, the patient tolerates easily; Use saferly simultaneously, avoided inserting complication due to the endotracheal airbag aeration.

When 4, extracting endotracheal tube, need not to extract out airbag gas and can directly extract endotracheal tube, easy to use, quick.

Description of drawings

Accompanying drawing is a structural representation of the present utility model.

The specific embodiment

Below in conjunction with the drawings and specific embodiments this utility model is done to describe in further detail.

Accompanying drawing is a structural representation of the present utility model, and as shown in the figure: the outer air bag endotracheal tube of glottis comprises airway 1, air bag 2 and gas injection valve 3.Airway 1 one ends are set terminal 4, and the other end is connected with connection tube 5, and air bag 2 is enclosed within on the airway 1 and with airway 1 and is sealed and matched, and air bag 2 is 3cm～6cm with the set terminal end face distance of airway 1, and gas injection valve 3 is communicated with air bag 2 by air injection pipe 6.In the present embodiment, air bag 2 is a spherical structure, and the air bag 2 of spherical structure can form good sealing effectiveness with glottis.

Airway is made by pvc material, is divided into two kinds: common airway and the airway that has the metal spiral silk; Air bag is made by pvc material, is high capacity low-pressure spherical envelope.The position of air bag moves to 3cm～6cm by traditional endotracheal tube backward apart from front end angle 2cm, usually about 4.5cm.When using the outer air bag endotracheal tube of this glottis, when the set terminal 4 of airway 1 being inserted under the glottises in the trachea 2cm, with air bag 2 inflation 10ml by laryngopharyngeal mirror; Continue then to insert, withstand glottis up to air bag 2 and get final product; Regulate aerating gasbag 2 to 60cmH by gas injection valve 3 ₂O; Fixing airway at last, connection tube 5 can be connected with other breathing apparatus, ventilates.Owing to insert the no air bag inflation in endotracheal airway surface, thereby eliminated compressing, also prevented the tracheal mucosa ischemia injury to trachea.Because the spherical envelope of inflation arrives at the glottis outer surface, and the rear end of airway imposes a spot of thrust and makes it to pass forward end fixedly the time, thereby makes air bag and glottis form good sealing.

According to the difference of all ages and classes trachea physiology length, determine the position of air bag according to the endotracheal tube model, formulate the distance of air bag apart from airway front end angle: No. 9 is 6cm, 8.5 number be 5.5cm, No. 8 is 5cm, No. 7.5 is 4.5cm, No. 7 is 4cm, and No. 6.5 is 3.5cm, is 3cm below No. 6.

Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although this utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims (2)

1. the outer air bag endotracheal tube of a glottis, comprise airway (1), air bag (2) and gas injection valve (3), described airway (1) one end is set terminal (4), the other end is connected with connection tube (5), described air bag (2) is enclosed within airway (1) and upward and with airway (1) is sealed and matched, described gas injection valve (3) is communicated with air bag (2) by air injection pipe (6), it is characterized in that: described air bag (2) is 3cm～6cm with the set terminal end face distance of airway (1).

2. the outer air bag endotracheal tube of glottis according to claim 1, it is characterized in that: described air bag (2) is a spherical structure.

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