CN214318807U - Rescue double-cavity tracheal catheter - Google Patents

Abstract

The utility model belongs to medical equipment, concretely relates to salvage nature two-chamber endotracheal tube. The tracheal catheter comprises a main catheter, an auxiliary catheter and an inflation tube, wherein the length of the main catheter is greater than that of the auxiliary catheter, and the diameter of the main catheter is smaller than that of the auxiliary catheter; the upper ends of the main catheter, the auxiliary catheter and the inflation tube are separated from each other, the upper end of the main catheter is provided with a main catheter interface, the upper end of the auxiliary catheter is provided with an auxiliary catheter interface, and the upper end of the inflation tube is provided with an air bag; the pipe wall of the middle-lower part of the main catheter, the auxiliary catheter and the inflation tube is connected in a tangent mode, an outer sleeve is sleeved on the outer side of the main catheter, the auxiliary catheter and the inflation tube, a reinforcing wire is arranged on the inner wall of the outer sleeve, a main cuff is arranged on the outer side of the lower part of the outer sleeve, the tail end pipe opening of the auxiliary catheter is located outside the main cuff, an auxiliary cuff is arranged at the tail end pipe opening of the main catheter, and the lower end of the inflation tube is communicated with the main cuff and the auxiliary cuff. The tracheal catheter can be inserted in a blind way under the condition of not using a laryngoscope, and the tracheal catheter does not need to be pulled out even if the main catheter is inserted into an esophagus, so that the tracheal catheter is more convenient to operate.

Description

Rescue double-cavity tracheal catheter

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to salvage nature two-chamber endotracheal tube.

Background

The rescue intubation is an important and effective rescue technology in clinical rescue, the technology is one of the best modes for quickly establishing an artificial airway and effectively ventilating, is the most effective oxygen supply means, and is a key measure in the cardio-pulmonary resuscitation process. However, when the intubation is performed, some problems often occur, on one hand, due to the structural characteristics of the human body, the trachea is in front of the esophagus and adjacent to the esophagus, the trachea is easy to be inserted into the esophagus during the intubation, and the difficulty coefficient is large; on the other hand, since rescue is often haphazard, the laryngoscope may not be prepared in time in an accidental situation, and rescue timing is crucial to first aid, and intubation operation is difficult without the aid of the laryngoscope, and once the catheter is inserted into the esophagus, re-intubation is required to be pulled out, which not only delays the best rescue timing, but also causes secondary injury to the patient, and therefore, there is an urgent need for an endotracheal tube which can be intubated without the aid of the laryngoscope, and does not need to be pulled out even when inserted into the esophagus.

Disclosure of Invention

To there being the intubate degree of difficulty coefficient big at present trachea cannula, not with the help of defect and the problem that the laryngoscope success rate reduces, the utility model provides a can just can carry out the rescue nature two-chamber endotracheal tube of blind insertion without laryngoscope exposes the glottis.

The utility model provides a scheme that its technical problem adopted is: a rescue double-cavity tracheal catheter comprises a main catheter, an auxiliary catheter and an inflation tube, wherein the length of the main catheter is greater than that of the auxiliary catheter, and the diameter of the main catheter is smaller than that of the auxiliary catheter; the upper ends of the main catheter, the auxiliary catheter and the inflation tube are separated from each other, the upper end of the main catheter is provided with a main catheter interface, the upper end of the auxiliary catheter is provided with an auxiliary catheter interface, and the upper end of the inflation tube is provided with an air bag; the pipe wall of the middle-lower part of the main catheter, the auxiliary catheter and the inflation tube is connected in a tangent mode, an outer sleeve is sleeved on the outer side of the main catheter, the auxiliary catheter and the inflation tube, a reinforcing wire is arranged on the inner wall of the outer sleeve, a main cuff is arranged on the outer side of the lower part of the outer sleeve, the tail end pipe opening of the auxiliary catheter is located outside the main cuff, an auxiliary cuff is arranged at the tail end pipe opening of the main catheter, and the lower end of the inflation tube is communicated with the main cuff and the auxiliary cuff.

In the rescue double-lumen tracheal catheter, the end orifice of the auxiliary catheter is a circular hole or an inclined hole.

The sidewall of the end orifice of the main catheter is provided with more than one air outlet hole.

In the rescue double-lumen tracheal catheter, the reinforcing wire is spirally arranged on the inner wall of the outer sleeve.

In the rescue double-cavity tracheal catheter, the spiral reinforcing wire is arranged on the partial inner wall of the main catheter below the main cuff.

The utility model has the advantages that: the lower end of the inflation tube of the rescue double-cavity tracheal catheter of the utility model is connected with the main cuff and the auxiliary cuff, which can inflate the main cuff and the auxiliary cuff simultaneously and open the air passage rapidly; the diameter of the main catheter is smaller than that of the auxiliary catheter, so that the stimulation reaction of the main catheter inserted into the esophagus blindly to the esophagus can be reduced; the length of the main catheter is larger than that of the auxiliary catheter, so that the success rate of inserting the intubation tube into the trachea can be increased; the vent is arranged at the tail end of the main duct, so that the ventilation efficiency can be improved, and the problem that the main duct body is thin and difficult to ventilate is solved; by inflating the main cuff and the auxiliary cuff, when the main catheter is inserted into an airway, the main cuff and the auxiliary cuff are beneficial to oxygen supply of the main catheter type trachea; the guiding performance of the catheter can be improved by arranging the reinforcing wires on the inner walls of the outer sleeve and the lower section of the main catheter; when main pipe inserted the esophagus, main cuff and vice cuff are opened pharyngeal portion and esophagus respectively and are made main cuff and vice cuff between form closed area, if insert the esophagus with main pipe when carrying out blind plug intubate when salvageing, because main cuff and vice cuff have formed closed area with whole passageway, make the air current of vice pipe only can flow to the trachea, can reach the purpose that trachea cannula carries out the oxygen suppliment equally, guarantee that the gas of breathing machine flows to the trachea through vice pipe, the trachea cannula of wholly being more convenient for.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the outer sleeve structure of the present invention.

Fig. 3 is a schematic diagram of the outer sleeve structure of the present invention.

Reference numbers in the figures: the device comprises an outer sleeve 1, a main conduit 2, an auxiliary conduit 3, an inflation tube 4, a main conduit joint 5, an auxiliary conduit joint 6, a main cuff 7, an auxiliary cuff 8, an auxiliary conduit end orifice 9 and an air outlet 10.

Detailed Description

To the endotracheal tube in present single chamber need carry out the intubate with the help of the laryngoscope, in case insert the esophagus and need extract the intubate again, not only bring the secondary damage for the patient, also can hinder the problem of rescue opportunity, the utility model provides a do not need to carry out the rescue nature double-chamber endotracheal tube of blind plugging with the help of the laryngoscope. The present invention will be further explained with reference to the drawings and examples.

Example 1: the embodiment provides a rescue double-cavity tracheal catheter, as shown in fig. 1 and 2, the tracheal catheter comprises a main catheter 2, an auxiliary catheter 3 and an inflation tube 4, wherein the main catheter is a first using catheter, the length of the main catheter is greater than that of the auxiliary catheter, and the main catheter is favorably inserted into a trachea during intubation; the pipe diameter of the main catheter is smaller than that of the auxiliary catheter, so that the stimulation effect of the main catheter on the esophagus when the main catheter is inserted into the esophagus can be effectively relieved. The upper ends of the main duct 2, the auxiliary duct 3 and the inflation tube 4 are mutually separated, and the middle lower parts are in tangential connection; the upper end of the main conduit is integrally connected with a main conduit joint 5, the upper end of the auxiliary conduit is integrally connected with an auxiliary conduit joint 6, and the upper end of the inflation tube is connected with an inflation air bag. The outer side of the tangent position of the main catheter, the auxiliary catheter and the inflation tube is provided with an outer sleeve 1, the inner wall of the outer sleeve is spirally provided with a reinforcing wire (not shown in the figure), the outer side of the lower part of the outer sleeve is provided with a main cuff 7, and the end orifice of the auxiliary catheter 3 is positioned below the main cuff, so that the auxiliary catheter can ensure that airflow can normally flow out and is not extruded and blocked by the main cuff; the part of the inner wall of the main catheter below the main cuff is provided with a reinforcing wire for facilitating insertion and guiding, the end orifice of the main catheter 2 is provided with an auxiliary cuff 8, the lower end of the inflation tube 4 is communicated with the main cuff and the auxiliary cuff, the upper end of the inflation tube is connected with an air inlet valve, and the air inlet valve inflates the main cuff and the auxiliary cuff through the inflation tube.

When carrying out the rescue, under the untimely condition of laryngoscope preparation, can use the two-chamber endotracheal tube of this embodiment to carry out blind insertion, judge the condition of inserting of main duct through medical science observation, carry out the blind insertion intubate and probably have two kinds of circumstances:

firstly, during blind insertion, a main catheter is inserted into a trachea, which shows that the intubation is successful once, at the moment, a pressing air bag inflates a main cuff and an auxiliary cuff through an inflation tube, the main cuff opens a pharyngeal portion, the auxiliary cuff opens the trachea, and the interface of the main catheter is connected to a breathing machine to supply oxygen to a patient. Because the pipe diameter of the main duct is slightly thin, in order to improve the ventilation effect of the main duct, a plurality of air outlets are arranged on the pipe wall at the tail end of the main duct.

Two, insert the esophagus with main duct when blindly inserting, explain this time the intubate does not disect insertion trachea, press this moment the gasbag and inflate main cuff and vice cuff through the gas tube, the pharyngeal portion is opened to main cuff, vice cuff opens the esophagus, main cuff and vice cuff all inflate the back and form closed area between the two, the orificial position of vice duct is closed around also, communicate vice duct interface end and breathing machine this moment, because main cuff and vice cuff exist and seal two exports of air current follow pharyngeal portion and esophagus, make the air current of vice duct only can flow to the trachea, can reach the purpose that trachea cannula carries out the oxygen suppliment equally. In this case, in order to further improve the flow-through property of the sub-catheter, the end orifice of the sub-catheter may be formed as an inclined hole, which can be adapted to the structural characteristics of the trachea and the esophagus.

Example 2: the same parts of this embodiment as those of embodiment 1 are not described again, except that, as shown in fig. 2, the front and back sides of the main catheter and the sub-catheter wall are respectively provided with an inflation tube, the lower end of one inflation tube is connected with the main cuff, the lower end of the other inflation tube is connected with the sub-cuff, the upper ends of the two inflation tubes are respectively connected with an independent air intake valve, and the main cuff and the sub-cuff are inflated separately through the air intake valve, so that the sizes of the main cuff and the sub-cuff can be adjusted conveniently.

Example 3: the same parts of this embodiment and embodiment 1 or 2 are not repeated again, and the difference lies in that, as shown in fig. 3, the outer tube of this embodiment makes the outer tube wholly be flat pipe for parcel and integral connection in the outside of main duct, auxiliary duct and gas tube, because the pipe diameter of main duct is less than the auxiliary duct, the gas tube is located the front and back position that main duct and auxiliary duct pipe wall meet, can be convenient for distinguish the direction of main duct and auxiliary duct when carrying out blind plugging intubate.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, and any modification, equivalent replacement and improvement made within the spirit and principle scope of the present invention should be included within the protection scope of the present invention.

Claims (5)

1. A rescue double-cavity tracheal catheter is characterized in that: the device comprises a main duct, an auxiliary duct and an inflation tube, wherein the length of the main duct is greater than that of the auxiliary duct, and the diameter of the main duct is smaller than that of the auxiliary duct; the upper ends of the main catheter, the auxiliary catheter and the inflation tube are separated from each other, the upper end of the main catheter is provided with a main catheter interface, the upper end of the auxiliary catheter is provided with an auxiliary catheter interface, and the upper end of the inflation tube is provided with an air bag; the main duct, the tangent connection of the well lower part pipe wall of vice pipe and gas tube, at the main duct, the outside cover of vice pipe and gas tube is equipped with the outer tube, the outer tube is parcel and a body coupling at the main duct, the outside of vice pipe and gas tube makes the outer tube wholly be flat pipe, the inner wall of outer tube is equipped with the stiffener, the lower part outside of outer tube is equipped with main cuff, vice sheathed tube end mouth of pipe is located outside main cuff, be equipped with vice cuff in the terminal mouth of pipe department of main duct, the lower extreme and main cuff and vice cuff intercommunication of gas tube.

2. The rescue dual-lumen endotracheal tube of claim 1, characterized in that: the end orifice of the secondary conduit is a circular hole or an inclined hole.

3. The rescue dual-lumen endotracheal tube of claim 1, characterized in that: at least two air outlet holes are arranged on the pipe wall at the tail end of the main guide pipe.

4. The rescue dual-lumen endotracheal tube of claim 1, characterized in that: the reinforcing wire is spirally arranged on the inner wall of the outer sleeve.

5. The rescue dual-lumen endotracheal tube of claim 1, characterized in that: the partial inner wall of the main catheter below the main sleeve is provided with a spiral reinforcing wire.

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