CN103386161A

CN103386161A - Guide core applied to retrograde tracheal intubation

Info

Publication number: CN103386161A
Application number: CN2012101439905A
Authority: CN
Inventors: 陈志扬; 陈瑞光; 刘瑾
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-10
Filing date: 2012-05-10
Publication date: 2013-11-13
Also published as: WO2013166634A1

Abstract

The invention relates to a guide core applied to retrograde tracheal intubation, wherein the guide core respectively comprises a front half ball, a circular truncated cone, a column and a back half ball from the front end to the back end, and is further provided with an inner hole. The inner diameter of each section of the guide core is 0.5-2mm (to guide a steel wire); the diameter of the front half ball is 2-5mm, the diameter of the front section of the circular truncated cone is equal to the diameter of the front half ball, the diameter of the back section of the circular truncated cone is equal to the diameter of the column, and the height of the circular truncated cone is 0.5-4cm; and the diameter of the column is 3-9mm, the length of the column is 38-45cm, and the diameter of the back half ball is equal to the diameter of the column. The most front end of the front half ball of the guide core is a zero point, the column is provided with scales of 33cm, 34cm, 35cm, 36cm, 37cm and 38cm.

Description

A kind of core of leading for backward trachael intubation

The present invention relates to a kind of core of leading for backward trachael intubation, be respectively " front hemisphere ", " round platform ", " cylinder ", " rear quarter " from the front end to the rear end, an endoporus is arranged.When backward trachael intubation, first leading core, insert endotracheal tube, expose front hemisphere and the round platform of leading core, then guide wire is inserted from the front hemisphere endoporus of leading core, from the endoporus of rear quarter, insert out, the tension guide wire, insert to send along guide wire and lead core and endotracheal tube, so just can avoid the obstruction of epiglottis and glottis, arrive smoothly tracheal wall, complete backward trachael intubation, avoided simultaneously the damage to respiratory tract.

One, background technology

At present, various methods for difficult tracheal intubation all can not guarantee all sure successes to all patients, because endotracheal tube the most easily is hampered by epiglottis and glottis when difficult tracheal intubation.Clinically, the Anesthetist is during to patient's backward trachael intubation, first guide wire is inserted outside trachea trachea, direct oral cavity or nostril are out, be inserted in again endotracheal tube, while inserting the snorkel conduit due to guide wire thin (0.9mm left and right) internal diameter of endotracheal tube very large (3.5-9mm left and right), guide wire often touch the tube wall of endotracheal tube, the inclined-plane of catheter proximal end often is hampered by epiglottis and vocal cords, causes difficult intubation.Originally lead core and be respectively " front hemisphere ", " round platform ", " cylinder ", " rear quarter " from the front end to the rear end, an endoporus is arranged, the overcoat endotracheal tube.Send while leading core and endotracheal tube along guide wire, inserting, to lead core and " tightly embrace " guide wire, to lead core while crossing glottis and gradually squeeze vocal cords by thin chap, can avoid the obstruction of vocal cords and epiglottis; The internal diameter of conduit, greater than the external diameter 0.5-1mm that leads core, can " tightly be embraced " and lead core.Lead core and finally be hampered by tracheal wall, then the snorkel conduit reaches tracheal wall, pull out and lead core and guide wire, more slightly advance endotracheal tube can complete tracheal intubation.

Two, summary of the invention

The endotracheal tube inclined-plane easily is hampered by epiglottis and glottis causes this significant deficiency of difficult intubation when overcoming existing backward trachael intubation, and we have designed and have originally led core.The external diameter of its internal diameter and guide wire adapts, and less " the front hemisphere " of front end, from fine to coarse " round platform " can tightly " be embraced " firmly guide wire and advance; " cylinder " external diameter and the endotracheal tube internal diameter of leading core adapt, and make to insert to send while leading core can not be obstructed; " rear quarter " of leading core can make leads core and is not stopped in the joint by endotracheal tube.

The technical solution adopted for the present invention to solve the technical problems is: what the present invention designed is a kind of core of leading for backward trachael intubation, is respectively " front hemisphere ", " round platform ", " cylinder ", " rear quarter " from the front end to the rear end, and an endoporus is arranged.The internal diameter of originally leading each section of core is 0.5-2mm (passing through guide wire); The diameter of " front hemisphere " is 2-5mm, and the diameter of " round platform " starting section equals the diameter of " front hemisphere ", and the diameter in rear cross section equals the diameter of cylinder, and length is 0.5-4cm; The diameter of " cylinder " is 3-9mm,, length is 38-45cm, the diameter of " rear quarter " equals the diameter of cylinder.Take " the front hemisphere " of leading core foremost as the O point, " cylinder " upper band scale has 33cm, 34cm, 35cm, 36cm, 37cm, 38cm.Lead core along guide wire when the glottis, from less " front hemisphere ", gradually increase thick " round platform ", thick " cylinder " and endotracheal tube enters in trachea successively, lead core and can " tightly embrace " guide wire, endotracheal tube can " tightly be embraced " and lead core, makes that the propelling movement process is smooth and easy not to be hindered.

The invention has the beneficial effects as follows, can be guide wire pass from oral cavity or nasal cavity after,, leading core and the trachea sheathed catheter enters guide wire, be easy to insert lead core and endotracheal tube, be applicable to the hell and high water airway intubation.Only need to do a puncture on tracheal wall, damage little.The equipment that needs is few, and expense is cheap, is applicable to any grade of other medical institutions.Simple to operate, specification requirement is not high, and is less demanding to Anesthetist's experience, and therefore very high promotional value is arranged.

Four, description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is the schematic diagram that pencil-type backward trachael intubation of the present invention is led core.

1. front hemisphere 2. round platform 3. cylinder 4. rear quarter 5. endoporus in figure

Five, the specific embodiment

in Fig. 1, first to airway surface, anaesthetize during backward trachael intubation, also can directly to General Anesthesia Undergoing, induce, guide wire is inserted in patient's trachea outside trachea, through glottis, from oral cavity or nostril pass, trachea stays 3cm outward, show the 0cm calibration points, fix the outer part of trachea of guide wire, the stretching guide wire of trying one's best, first endotracheal tube is inserted in and leads core, make and lead hemisphere and round platform before core and expose from the endotracheal tube front end, guide wire is inserted from the endoporus of " the front hemisphere " of leading core, insert out from " rear quarter " endoporus, taut wire, insert to send and lead core and endotracheal tube, after feeling that leading core is hampered by tracheal wall (but also B ultrasonic is determined), endotracheal tube is pushed ahead to tracheal wall, pull out and lead core and guide wire, advance slightly forward again endotracheal tube can complete tracheal intubation.

Claims

1. the core of leading that is used for backward trachael intubation, be respectively " front hemisphere ", " round platform ", " cylinder ", " rear quarter " from the front end to the rear end, and an endoporus is arranged.

2. a kind of core of leading for backward trachael intubation according to claim 1, it is characterized in that: the internal diameter of originally leading each section of core is 0.5-2mm (passing through guide wire); The diameter of " front hemisphere " is 2-5mm, and the diameter of the starting section of " round platform " equals the diameter of " front hemisphere ", the diameter in rear cross section equal " cylinder " and diameter, length is 0.5-4cm; The diameter of " cylinder " is 3-9mm, and length is 38-45cm, and the diameter of " rear quarter " equals the diameter of " cylinder ".Take the front hemisphere of leading core foremost as 0 point, on cylinder, the band scale has 33cm, 34cm, 35cm, 36cm, 37cm, 38cm.