CN201200706Y

CN201200706Y - Valve type endotracheal tube

Info

Publication number: CN201200706Y
Application number: CNU2008201036585U
Authority: CN
Inventors: 胡大伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-15
Filing date: 2008-05-15
Publication date: 2009-03-04
Anticipated expiration: 2018-05-15

Abstract

The utility model provides a valve-type tracheal catheter, which relates to a respiration assisting catheter device for guaranteeing smooth human respiratory tracts. An inflation tube 3 is fixed in a catheter 1; a funnel-shaped ribbed film 4 and an expansion clack 5 which are alternately connected are fixed on the periphery of the forepart of the catheter 1; a closed gasbag 6 is fixed between the peripheral wall of the forepart of the catheter 1 and the roots of the funnel-shaped ribbed film 4 and the expansion clack 5 which are alternately connected; the outer wall of the gasbag 6 corresponding to the catheter 1 is provided with an inflation hole 7; and an opening of the front end of the inflation tube 3 is on the inflation hole 7. The design of the small support gasbag 6 satisfies the effects of expanding and contracting the expansion clack 5 and the ribbed film 4, and then ensures more reasonable and effective plugging action of a trachea 9, better plugging effect during spontaneous respiration and smoother ventilation, and can play a corresponding role in supporting the collapsing trachea 9. The wide expansion clack 5 and the ribbed film 4 enlarge contact area and reduce the pressure on the mucous membrane of the trachea 9, thereby effectively protecting the functions and integrity of the mucous membrane.

Description

Valve formula endotracheal tube

Technical field:

This utility model relates to a kind of human respiratory tract of guarantee unobstructed conduit assisted respirator, especially valve formula endotracheal tube.

Background technology:

In the known technology, endotracheal tube operated by rotary motion inflatable cuff its role is to: provide air flue not have the condition of gas leakage for carrying out control breathing or assisted respiartion clinically; Prevent that vomitus etc. from flowing into the lower respiratory tract mistake and inhaling along the slit between endotracheal tube and the tracheal wall; Prevent that the anesthetic gases that sucks from escaping from anesthesiaing system, to keep anesthesia steadily.Requirement can be controlled intracapsular pressure and be no more than 30mmHg, can reach the effect of complete leakproof and anti-error suction again.But, make clinical application effect not good because air bag working condition of the prior art is not ideal enough.

The incidence rate of trachea pathological changes and seriousness thereof are not only relevant with intubation time, and with other factors, as cover scrotiform shape and pressure, the histocompatibility of tracheal intubation and cover capsule material etc. are also closely related, the gasbag pressure high air flue mucosa injury of healing is heavier.After the seventies in 20th century, begin to adopt compliance plastic production cover capsule preferably, even reach very big capacity, the change of its pressure is also very little, thereby can reduce the generation of trachea pathological changes, and when implementing positive airway pressure, intracapsular pressure and Peak Inspiratory Pressure have rectilinear correlation, require intracapsular pressure at least greater than intrapulmonic pressure 3cm water column, and at N ₂During the O general anesthesia, prolong in time, pressure and capacity in the cover capsule all can correspondingly increase gradually, this requires the pressure of tracheal intubation cover capsule is carried out routine monitoring, but cost is higher, so in the clinical practice operation, many doctors and nurse usually judge its pressure indirectly by the proximal balloon tension force that touches tracheal intubation, this is inaccurate.

In addition, the disclosed related art scheme of Chinese patent application comprises, 200710013453.8 a novel endotracheal tube comprises main pipe, be connected the connection tube on the main pipe, be arranged on the air bag on the main pipe, the air bag air injection pipe that communicates with air bag, the end of described main pipe is provided with venthole and side venthole, described connection tube comprises the upper channel mouth that is connected with respirator or anesthesia outfit, the lower channel opening that is connected with main pipe, one side of described upper channel mouth is provided with the wing passage mouth, is fixed on the seal cover on the wing passage mouth; Described connection tube is provided with fixed dam and following fixed dam, the built-in reinforcement steel wire of described main pipe; The built-in reinforcement steel wire of described main pipe; 200710014662.4 multifunctional trachea catheter, relate to a kind of two lungs isolation that have, the multifunctional trachea catheter of ventilation and suction foreign body, the endotracheal tube that comprises a hollow, the middle and lower part of endotracheal tube is elastic around one, be connected with the endotracheal tube air bag of endotracheal tube airbag inflation pipe, there is an endotracheal tube opening lower end of endotracheal tube, it is one elastic that lower end one side of endotracheal tube is connected with, be connected with the bronchus air bag of bronchus airbag inflation pipe, bronchus air bag and endotracheal tube opening lay respectively at the both sides of endotracheal tube, the lower end of described bronchus air bag has one to import end, described importing end is a hollow structure, end has at least one and imports distolateral hole, imports end and is connected with a suction catheter.03242228.8 the endotracheal tube of scalable corrugated tube is arranged, includes air-guide main tube, air bag, joint and gas tube; Increase between the miner diameter end of air-guide main tube and joint one section scalable corrugated connecting tube is arranged; Corrugated connecting tube is connected as a single entity with joint, and its another opening is provided with main pipe and becomes to insert the connector portions that cooperates.Certainly, scalable corrugated connecting tube also can be connected as a single entity with the air-guide main tube, and the other end is provided with the connector portions that becomes insertion to cooperate with joint; Scalable corrugated tube, it can also be one-body molded with air-guide main tube and joint.This utility model since corrugated connecting tube be telescopic and can bend to angle arbitrarily at any part, not only stable but also its curvature of its bending section change be successive, can between art, not form the bending of obstruction property.03230897.3 single cavity double sac tracheal intubation conduit, by single-lumen bronchial tube, conduit outlet, conduit side opening, two air bags, air bag fill, exit pore and charge valve constitutes, two capsules are independent each other, can intersect and exit and inflation, can prevent that oral secretion or esophageal reflux thing from entering trachea and lung, reduce the damage that air bag causes the inner surface of trachea compressing.More than these new public technology schemes also exist the deficiency of failing to deal with problems substantially in various degree.

Technology contents:

The purpose of this utility model provides a kind ofly can effectively keep ventilation, reduces the endotracheal tube of complication, i.e. valve formula endotracheal tube.

The measure that realizes the present utility model purpose comprises: fixing gas tube in the conduit, the funnel-form pleura and the lobe that rises that the anterior periphery fixed interval of conduit connect, at the air bag of the anterior periphery wall of conduit with the funnel-form pleura that is connected at interval and the fixing sealing between the lobe root of rising, open air-filled pore on the corresponding conduit outer wall of air bag, the gas tube front opening is on air-filled pore.

Advantage of the present utility model is: by ramuscule support airbag design; rise after the effect of lobe and pleura satisfying to prop up and to recover; make that the plugging action of trachea is more reasonable effectively; plugging effect during autonomous respiration is better; it is more smooth and easy to ventilate; can play corresponding supporting role to the trachea that subsides, broader rise lobe and pleura enlarge contact area and reduce pressure to tracheal mucosa, effectively protect the function of mucosa and complete.Replace original cover capsule pattern with rise lobe and pleura, significantly reduce the respiratory mucosa compressing, effectively protect internal organs, it is safer to ventilate, and makes to operate more standard, safe and soft, rational in infrastructure, and effect is remarkable.

Description of drawings:

Accompanying drawing 1 cuts open sketch map for the structure of this utility model embodiment 1.

Accompanying drawing 2 is the working state schematic representation of this utility model embodiment 1.

Reference numeral comprises: conduit 1, air valve 2, gas tube 3, pleura 4, the lobe 5 that rises, air bag 6, air-filled pore 7, side opening 8, trachea 9.

The specific embodiment:

Embodiment 1: fixing gas tube 3 in the conduit 1, the funnel-form pleura 4 and the lobe 5 that rises that conduit 1 anterior periphery fixed interval connect, at the air bag 6 of conduit 1 anterior periphery wall with the funnel-form pleura 4 that is connected at interval and the fixing sealing between lobe 5 roots of rising, open air-filled pore 7 on air bag 6 corresponding conduit 1 outer walls, gas tube 3 front openings are on air-filled pore 7.

Gas tube 3 ends pick out conduit 1 rear wall and connect air valve 2.Conduit 1 front end is wedge-like shape angle.Open side opening 8 on conduit 1 front bulkhead.Rise by lobe 5 thickness or hardness greater than pleura 4.Flexible biomaterials such as conduit 1 front end, the lobe 5 that rises, pleura 4 and air bag 6 employing silica gel make 9.Normality is shunk and is attached at conduit 1 front end periphery wall under lobe 5, pleura 4 and the air bag 6 unaerated conditions of rising.

After air bag 6 is positioned at conduit 1 front end and pleura 4 and rise lobe 5 and root that conduit 1 outer wall is connected, the funnel-form pleura 4 that connects at interval and rise that 1 front end opens lobe 5 backward from root along conduit.This model is suitable for positive airway pressure.

Air bag 6 is positioned between conduit 1 front end and pleura 4 and rise lobe 5 and root that conduit 1 outer wall is connected, the funnel-form pleura 4 that connects at interval and rise that 1 front end opens forward lobe 5 from root along conduit.This model is suitable for the patient that air flue high-drag, high pressure require to satisfy ventilation again, as situations such as emphysema, chronic bronchitiss.

Inflate the rise lobe 5 and the pleura 4 replacement conventional sleeve capsules of back type such as funnel-like, use the silica gel material, to increase histocompatibility, lobe plays a supportive role, and more softish pleura 4 helps contraction and is affixed on the conduit 1.The pressure that air bag 6 is produced from the mechanics angle is broken down into upwards and power forward, and the power that wherein makes progress is the main cause that produces the compressing of trachea 9 inwalls, and the direct compressing of cover capsule at present is transformed into indirect compressing and makes stressed reducing.And intrapulmonic pressure also is broken down into downwards and two power of vertical air spring 6 walls, and all component all have the effect of cancelling out each other each other, are zero as long as the power that makes progress is offset, and just can satisfy clinical requirement.The lobe 5 that rises of identical material, pleura 4 can be adjusted thickness and control elasticity, simple standard elastic force and control size so just, and no matter be positive airway pressure or autonomous respiration, the fluctuation meeting of intrapulmonic pressure directly changes the cover capsule to trachea 9 wall pressure power, play the diastole effect, more present endotracheal tube has been eliminated the chance of the compressing that continues and increase, and more can meet clinical needs.

In use, according to management of respiratory intubate indication, press working specification, conduit 1 front end is inserted in the trachea 9,, use standard syringe through gas tube 3 injecting gas in air bag 6 by air valve 2, air bag 6 inflation heave open and full after, the feasible lobe 5 that rises turns up and pleura 4 struts, and its outer rim attaches trachea 9 inwalls, plays plugging action.When mechanical ventilation, intrapulmonic pressure acts on rise lobe 5 and the pleura 4, feasible pressure to trachea 9 mucosas is in the dynamic change in safety range with its elastic force interaction, do not cause the damage of trachea 9 persistence, elasticity will make rise lobe 5 and pleura 4 subside and pressure is above standard, and discharges unnecessary gas and reduces trachea 9 pressure.During autonomous respiration, negative pressure makes rise lobe 5 and pleura 4 stick tracheal mucosa more and strengthen plugging action in the lung, and the pressure of trachea 9 mucosas is remained in the safety range of dynamic change, can satisfy the needs of long-term band pipe.After finishing using, the gas of emitting in the air bag 6 by air valve 2 is tiled on conduit 1 outer wall with rise lobe 5 and pleura 4 of recovery again, conveniently extracts.

Present embodiment can also be used for bronchial catheter and esophagus shutoff.

The advantage of present embodiment is: by little support air bag 6 designs; rise after the effect of lobe 5 and pleura 4 satisfying to prop up and to recover; make that the plugging action of trachea 9 is more reasonable effectively; plugging effect during autonomous respiration is better; it is more smooth and easy to ventilate; can play corresponding supporting role to the trachea 9 that subsides, broader rise lobe 5 and pleura 4 enlarge contacts area and reduce pressure to trachea 9 mucosas, effectively protect the function of mucosa and complete.Replace original cover capsule pattern with rise lobe 5 and pleura 4, significantly reduce the respiratory mucosa compressing, effectively protect internal organs, it is safer to ventilate, and makes to operate more standard, safe and soft, rational in infrastructure, and effect is remarkable.

Claims

1. valve formula endotracheal tube, it is characterized in that, fixing gas tube (3) in the conduit (1), funnel-form pleura (4) and the lobe that rises (5) that the anterior periphery fixed interval of conduit (1) connect, between the anterior periphery wall of conduit (1) and funnel-form pleura (4) that is connected at interval and the lobe that rises (5) root, fix the air bag (6) that seals, open air-filled pore (7) on the corresponding conduit of air bag (6) (1) outer wall, gas tube (3) front opening is on air-filled pore (7).

2. valve formula endotracheal tube as claimed in claim 1 is characterized in that, gas tube (3) end picks out conduit (1) rear wall and connects air valve (2).

3. valve formula endotracheal tube as claimed in claim 1 is characterized in that, conduit (1) front end is wedge-like shape angle.

4. valve formula endotracheal tube as claimed in claim 1 is characterized in that, opens side opening (8) on conduit (1) front bulkhead.

5. valve formula endotracheal tube as claimed in claim 1 is characterized in that the lobe that rises (5) thickness or hardness are greater than pleura (4).

6. valve formula endotracheal tube as claimed in claim 1 is characterized in that, normality is shunk and is attached at conduit (1) front end periphery wall under the lobe that rises (5), pleura (4) and air bag (6) the unaerated condition.

7. valve formula endotracheal tube as claimed in claim 1, it is characterized in that, after air bag (6) was positioned at conduit (1) front end and pleura (4) and the lobe that rises (5) and root that conduit (1) outer wall is connected, (1) front end opened backward from root along conduit for funnel-form pleura (4) that connects and the lobe that rises (5) at interval.

8. valve formula endotracheal tube as claimed in claim 1, it is characterized in that, air bag (6) is positioned between conduit (1) front end and pleura (4) and the lobe that rises (5) and root that conduit (1) outer wall is connected, and (1) front end opens forward from root along conduit for funnel-form pleura (4) that connects and the lobe that rises (5) at interval.