Tracheal cannula for airway stenosisTechnical Field
The utility model relates to the technical field of medical instruments, in particular to an endotracheal intubation for airway stenosis.
Background
The tracheal cannula is a special tracheal catheter for tracheal intubation operation, is inserted into the trachea of a patient through the oral cavity or the nasal cavity, is an important rescue technology for critical patients with cardiopulmonary resuscitation, operative anesthesia and respiratory dysfunction, and is the most reliable means for keeping the upper respiratory tract unobstructed.
At present, when a general airway stenosis patient is intubated, an endotracheal tube is difficult to pass through a stenosis, for example, a glottis is a narrow triangle, only a thinner endotracheal tube can be adopted, and the thinner endotracheal tube easily causes higher ventilation resistance, so the inventor proposes an endotracheal tube for airway stenosis to solve the problems.
Disclosure of utility model
The utility model aims to provide an endotracheal tube for airway stenosis, which is easier for an endotracheal tube to pass through a stenosis and can solve the problem that ventilation resistance is high due to the thinning of the front end tube.
The technical aim of the utility model is achieved by the following technical scheme that the tracheal cannula for airway stenosis comprises a catheter, an air outlet and a cuff, wherein the air outlet is arranged at one end of the catheter, the diameter of the part from one end of the catheter close to the air outlet to the catheter of the cuff is changed from thin to thick, and a plurality of vent holes are arranged from one end of the catheter close to the air outlet to the catheter of the cuff.
By adopting the technical scheme, the front end of the catheter is designed into a form of being changed into a form from thin to thick, so that the catheter can more easily pass through narrow parts such as glottis and the like, and a plurality of vent holes are formed from one end of the catheter, which is close to the air outlet, to the catheter part of the cuff, so that the problem that the ventilation resistance is high due to the thinning of the opening of the catheter at the front end of the catheter can be effectively solved.
The utility model further provides a vent pipe, wherein one end of the vent pipe, which is close to the air outlet, is provided with a cuff, and the other end of the vent pipe is provided with a cuff inflation inlet.
Through adopting above-mentioned technical scheme, after filling the gas to the cover bag inside, the gasbag will block in the middle of breathing the trachea, can prevent the air flue gas leakage on the one hand, fix the trachea on the other hand, prevent that the trachea from falling off, can effectively reduce some unnecessary complication of patient simultaneously.
The utility model is further arranged that one end of the guide pipe far away from the air outlet is provided with an air inlet piece.
By adopting the technical scheme, an artificial channel is provided for the ventilation, oxygen supply, respiratory tract suction and the like.
In summary, the utility model has the following beneficial effects:
1. The diameter of the part of the catheter from one end of the catheter near the air outlet to the catheter part of the cuff is designed to be changed from thin to thick, so that the catheter can more easily pass through the narrow parts such as glottis and the like during intubation.
2. The part of the catheter from one end of the catheter near the air outlet to the catheter part of the cuff is provided with a plurality of vent holes, so that the problem that the ventilation resistance is high due to the thinning of the front end catheter opening can be effectively solved.
Drawings
FIG. 1 is a schematic view of an endotracheal intubation for airway stenosis in accordance with an embodiment of the present utility model;
In the figure, 1, an air outlet, 2, a cuff, 3, a vent hole, 4, a catheter, 5, a vent pipe, 6, a cuff inflation inlet and 7, an air inlet piece.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples:
the tracheal cannula for airway stenosis comprises a conduit 4, an air outlet 1 and a cuff 5, wherein the air outlet 1 is arranged at one end of the conduit 4, the diameter of the portion from one end of the conduit 4 near the air outlet 1 to the conduit 4 of the cuff 5 is changed from thin to thick, a plurality of vent holes 3 are formed in the portion from one end of the conduit 4 near the air outlet 1 to the conduit of the cuff 5, and an air inlet piece 7 is arranged at one end of the conduit 4 far away from the air outlet 1.
Also comprises a breather pipe, one end of the breather pipe 5 near the air outlet 1 is provided with a sleeve bag 2, the other end of the breather pipe 5 is provided with a cuff inflation inlet 6.
When the inflatable bag is used, a patient is placed in a body position, the patient is generally lying on the body, the head is turned upwards, the glottis are fully exposed, the catheter is inserted into the glottis of the patient until the trachea, and then the cuff inflation port is used for inflating the cuff, so that the air bag is clamped in the respiratory trachea.
Working principle:
During intubation, the diameter of one end of the catheter close to the air outlet is thinned, so that the catheter can more easily pass through narrow positions such as glottis and the like, and a plurality of vent holes are formed from one end of the catheter close to the air outlet to the catheter part of the cuff, so that the problem that the ventilation resistance is high due to the thinning of the catheter at the front end of the catheter can be effectively solved.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.