CN202015411U - Throat breath guiding catheter - Google Patents

Abstract

The utility model relates to a throat breath guiding catheter which comprises a ventilation inlet (1), an esophagus inlet (2) of the throat breath guiding catheter, a throat cavity air sac inflation inlet (3), an esophagus air sac inflation inlet (4), an esophagus air sac gas tube (5), an esophagus tube (6), a throat cavity air sac (7), an esophagus air sac (8), an esophagus opening (9) of the throat breath guiding catheter, a throat cavity air sac gas tube (10), a gas flue ventilation operating tube (11) and a gat tube opening (12) of the throat breath guiding catheter. The throat breath guiding catheter is characterized in that a sealed unidirectional ventilation valve (13) is added on the ventilation inlet (1) side of the gas flue ventilation operating tube (11) and is a unidirectional three-leaf ventilation valve. In the throat breath guiding catheter, ventilation, bronchoscopy of trachea and bronchus and operative procedures in the trachea and bronchus are combined, so that a checking process is comfortable and convenient, a safety coefficient is greatly improved, and the throat breath guiding catheter can be especially used for taking out foreign body in trachea of children and patients who can not tolerate local-anesthesia tracheobronchoscopy.

Description

Throat is breathed guide catheter

Technical field

This utility model belongs to the armarium technical field, relates in particular to a kind of throat and breathes guide catheter.

Background technology

The endotracheal tube that gives mechanical ventilation in operation process mainly is divided into following several: 1, traditional endotracheal tube, under the laryngoscope photopic vision, carry out tracheal intubation, can cause that to patients such as hypertension and heart diseases bigger hemodynamics changes, unhelpful to safety in the art and prognosis.And the patient regular meeting for difficult airway causes intubation defeat.2, laryngeal mask (LMA) without the laryngoscope photopic vision, can insert fast, the processing of difficult airway in can be used for performing the operation.Laryngeal mask is used convenient, still, and for the full gastropathy people of emergency operation and the patient of fasting not; Has the dangerous patient of anti-stream; Trachea pressurized and tracheomalacia patient; It is definitely incompatible that laryngeal mask is used.Relatively contraindication has: lung compliance reduces or high lung resistance patient, and this type of patient usually need be with 2.5～3.OkPa (positive airway pressure of 25.5～30.6cmH2O); Though the tracheal intubation difficulty patient can use LMA the difficult intubation patient or the intubation defeat patient that do not predict, the patient of difficult intubation medical history or expectation difficult intubation is arranged.3, trachealgia associating conduit (ETC), without the laryngoscope photopic vision, the hemodynamics that has caused when having avoided exposing glottis changes.When pre hospital care, cardio-pulmonary resuscitation and difficult tracheal intubation than esophageal obstruction breather, laryngeal mask more rapidly, open airway and reduce the generation of mortality complication such as gastric content mistake suction effectively.The endotracheal tube that more than is used for mechanical ventilation all only has ventilatory function, in the inspection and operating process of air flue, owing to there is not special ventilation facility, only can finish under local anaesthesia or basal anesthesia.Not only increased patient's misery, and the accident that mostly occurs.

Summary of the invention

The purpose of this utility model is for overcoming the drawback of above-mentioned existence, designing a kind of at the throat breathing guide catheter that can not have to finish under autonomous respiration or the dark anesthesia trachea, intrabronchial inspection and operation.Realize the purpose of this utility model.The technical scheme of being taked is: improved on the basis of traditional endotracheal tube and trachealgia associating conduit.This throat breathing guide catheter includes ventilation inlet, throat breathing guide catheter esophagus inlet, pharyngolaryngeal cavity airbag aeration mouth, esophageal inflatable balloon mouth, esophageal inflatable balloon pipe, food meatus, pharyngolaryngeal cavity air bag, esophageal balloon, throat breathing guide catheter esophagus opening, pharyngolaryngeal cavity airbag inflation pipe, airway pressure operates pipe and throat is breathed guide catheter trachea opening.It is characterized in that setting up the unidirectional ventilation flap valve of a sealing at the ventilation entrance side of airway pressure operation pipe.The unidirectional ventilation flap valve of said sealing is unidirectional ventilation SANYE flap valve.

This utility model is that conduit is inserted esophagus, and not needing laryngoscope to expose can insert, and studies show that, blind when slotting, the probability that conduit enters esophagus is 83%, and the probability that enters trachea is 17%.The blind hemodynamic acute variation that causes in the time of to avoid provoking epiglottis and expose glottis of inserting.Cooperate necessary maneuver and position, the blind probability that is inserted into esophagus is higher.This utility model is simple to operation, and need not the patient head layback during intubate and peep larynx, the success rate height, and ventilatory effect is satisfied.So be applicable to high larynx, the difficulty in opening mouth patient that cervical vertebra is tetanic or fracture, micromandible or mandibular joint are tetanic and other reason causes especially, also can be used for causing glottis difficult exposure person because of reasons such as maxillar part traumatic hemorrhage or frequent vomitings.Can be used for pre hospital care, cardio-pulmonary resuscitation and disposal of Difficult Fracheal Intubation.Can be used as the effective ways of keeping airway patency and oxygen supply in trachea in emergency circumstances or the cricothyroid laryngotomy.Can A/C behind the bottleneck throat sleeve bag gas-filling in order to avoid deviate from, in patient's safety, convenient in transit.Its hollow tubing conductor can be drawn aqueous gastric content, and esophageal balloon plays the effect of sealing esophagus.Therefore use this throat breathing guide catheter and not only can keep respiratory passage unblocked, can also prevent that gastric content from backflowing, avoid mistake to inhale and take place.Breathe under the constant situation of the overall diameter of guide catheter at throat, reduce the diameter of esophageal catheter as far as possible, make the working place of airway pressure operation pipe big as far as possible, increased the convenience of operation.The present invention does not have the mechanicalness invasion and attack to vocal cords and tracheal mucosa, and mucosa blood does not influence the tracheal cilia motion, so can keep the air flue self-cleaning action for unaffected.And there are not vomiting, the worry of suction by mistake that laryngeal mask may exist.

This utility model is that the operation technique with ventilation and trachea, endoscopy of bronchus and trachea, bronchus inside combines.Not only make the more comfortable convenience of checking process, also increased safety coefficient greatly.Be particularly useful for the taking-up of children with tracheal foreign body and can not tolerate the Bronch patient of trachea under the local anaesthesia.Start new era of tracheascope operation.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is an application sketch map of the present utility model.

Among the figure, 1, ventilation inlet, 2, throat breathes guide catheter esophagus inlet, 3, pharyngolaryngeal cavity airbag aeration mouth, 4, the esophageal inflatable balloon mouth, 5, the esophageal inflatable balloon pipe, 6, food meatus, 7, the pharyngolaryngeal cavity air bag, 8, esophageal balloon, 9, throat is breathed guide catheter esophagus opening, and 10, the pharyngolaryngeal cavity airbag inflation pipe, 11, airway pressure operation pipe, 12, throat is breathed guide catheter trachea opening, and 13, unidirectional ventilation flap valve, 14, trachea, 15, esophagus, 16, epiglottis, 17, soft palate.

The specific embodiment

With reference to accompanying drawing, this throat breathing guide catheter includes ventilation inlet 1, throat is breathed guide catheter esophagus inlet 2, pharyngolaryngeal cavity airbag aeration mouth 3, esophageal inflatable balloon mouth 4, esophageal inflatable balloon pipe 5, food meatus 6, pharyngolaryngeal cavity air bag 7, esophageal balloon 8, throat breathing guide catheter esophagus opening 9, pharyngolaryngeal cavity airbag inflation pipe 10, airway pressure operation pipe 11 and throat and breathed guide catheter trachea opening 12.It is characterized in that ventilation at airway pressure operation pipe 11 1 side that enters the mouth sets up the unidirectional ventilation flap valve 13 of a sealing.The unidirectional ventilation flap valve 13 of said sealing is unidirectional ventilation SANYE flap valve.

Use of the present utility model is as follows:

Blind when slotting, mention tongue and lower jaw on the other hand, another hand-held throat is breathed guide catheter and is inserted gently along pharyngeal cavity natural torsion degree, until mark line till the front tooth.Mark line is apart from about the pharyngolaryngeal cavity air bag front end 8CM.Spy on angle because of dissecting reason from laryngoscope, the esophagus opening side of taking back.Its upper left side is left pears shape nest, and medial side top be epiglottis and glottis mouth, operate appropriate to the occasion first-selected left side route, and lower jaw is carried to increase the gap between the root of the tongue and soft palate on forward, inserts the success rate of esophagus with raising throat breathing guide catheter.After conduit put in place, at first with the near-end sleeve bag gas-filling, the sealing pharyngolaryngeal cavity was lifted on the soft palate, and nasal cavity is sealed; With the far-end sleeve bag gas-filling, seal esophagus then.Check whether on position is correct, a, two pulmonary respiration sound and thorax rise and fall; B, upper abdomen do not have gas to blow into the sound of gastric, do not have the gastric inflation; C, connection expiration CO2 pick off are breathed the guide catheter position in air flue if PetCO2＞30mmHg shows throat.The confirmation catheter position is correct.Fixing, the blow vent of then airway pressure being operated pipe connects the respirator loop and carries out mechanical ventilation.If catheter position is incorrect, need extract heavily slotting, need not the layback, insert at natural head posture.Use laryngoscope in case of necessity, under the photopic vision conduit is inserted esophagus.

Claims (1)

1. a throat is breathed guide catheter, include ventilation inlet (1), throat is breathed guide catheter esophagus inlet (2), pharyngolaryngeal cavity airbag aeration mouth (3), esophageal inflatable balloon mouth (4), esophageal inflatable balloon pipe (5), food meatus (6), pharyngolaryngeal cavity air bag (7), esophageal balloon (8), throat is breathed guide catheter esophagus opening (9), pharyngolaryngeal cavity airbag inflation pipe (10), airway pressure operation pipe (11) and throat are breathed guide catheter trachea opening (12), it is characterized in that setting up the unidirectional ventilation flap valve (13) of a sealing in ventilation inlet (1) side of airway pressure operation pipe (11), the unidirectional ventilation flap valve (13) of said sealing is unidirectional ventilation SANYE flap valve.

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