CN102949772A - Tracheal catheter with corrugated air sac - Google Patents
Tracheal catheter with corrugated air sac Download PDFInfo
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- CN102949772A CN102949772A CN2011102519847A CN201110251984A CN102949772A CN 102949772 A CN102949772 A CN 102949772A CN 2011102519847 A CN2011102519847 A CN 2011102519847A CN 201110251984 A CN201110251984 A CN 201110251984A CN 102949772 A CN102949772 A CN 102949772A
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- air bag
- endotracheal tube
- air sac
- tracheal catheter
- tubular body
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Abstract
The invention relates to a tracheal catheter for creating an air passage for artificial ventilation for a patient in anesthesiology or emergency medicine, and in particular relates to a tracheal catheter which is characterized by being provided with a corrugated air sac. When the tracheal catheter is expanded, the air sac has a corrugated structure, and the outer side surface of the air sac is in a shape of water wave, therefore, the original functions of the air sac are maintained, namely the air sac is used for blocking a space between the tracheal catheter and the inner wall of a trachea so as to prevent nasopharyngeal secretions from flowing into the trachea and prevent air leakage during a positive-pressure ventilation period, and meanwhile, a contact surface between the air sac and a tracheal mucous membrane can be minimized, and the possibility of complicating diseases, such as ischemic injury and sore throat, caused by the tracheal catheter can be remarkably reduced.
Description
Technical field
The present invention relates in anesthesiology or emergency medicine, be used to the patient to set up the endotracheal tube of air flue and artificial ventilation, particularly a kind of endotracheal tube with ripple form air bag.
Background technology
Generally speaking, endotracheal tube (endotracheal tube) is as directly transmitting oxygen and narcotic air duct to the patient, a side of the cylindrical tube of measured length consists of the terminal part that inserts endotracheal opening both having, and consists of the base end part of the opening that is connected in gas supply source in an opposite side.
Usually, endotracheal tube is to form sealing with inner surface of trachea, with the air bag that is designed to expand at the lateral part of cylindrical tube.The function of trachea is stopped up in the air bag performance, and the blocking-up foreign body is inhaled in trachea and the lung.Particularly stop food, outside organism or digestive system content to enter in the lung.Endotracheal tube is mainly used in operation, but also often uses at emergency room or the first aid scene of the accident.In the operation that needs general anesthesia, by comprising the anesthetis administration of medicine or gas, the patient will enter automatism.And, in order to alleviate to greatest extent the patient to reaction and the nausea and vomiting of intubate, provide muscle relaxant or paralyzant to the patient.Use laryngoscope to push tongue to a rear flank, intubate is executed and is pushed away the laryngoscope handle on the patient, thereby can the direct observation oral cavity and the anatomical structure of air flue.The specific target area of endotracheal tube is larynx, and larynx is the peristome between vocal cords and the air pipe inlet.The terminal part of endotracheal tube inserts in the larynx, and expandable air bag balloon is filled with air, forms airtight sealing between airbag wall and inner surface of trachea.This gas-tight seal section can make the oxygen that just has (positive) pressure and anesthetic gases directly be supplied to the following air flue of leading section and balloon.
The air bag of endotracheal tube plays and prevents that oral cavity or larynx secretions from sucking and preventing the important function that ventilation gas is leaked when positive airway pressure.But with the air bag of too high or too low pressure expansion, itself may cause multiple complications.That is, the air bag of excessive expansion reduces or blocks the perfusion of blood capillary in the tracheal mucosa, brings out ischemia injury, causes throat pain, tracheal mucosa necrosis, tracheal stenosis etc., and severe patient may cause the fatal result of tracheal rupture.On the contrary, cross when low when gasbag pressure, the probability of bringing out gas leakage, lung suction is very high.Therefore, air bag is very important with suitable pressure expansion.Difference according to bladder shape and pressure, after the operation of using endotracheal tube, the complication such as throat pain sore throat may occur, research worker is constantly being carried out the research Da Han patient with severe symptoms proceedings v121:43-48 of medical association for the generation that farthest reduces this kind situation, Da Han anesthesiology meeting 335:864-868, the Da Han anesthesiology can 56:513-518.So far, although by researching and developing out the air bag with variform and function, eliminate the complication relevant with air bag not yet fully.Therefore, need a kind of air bag that can when suitably keeping the air bag function, reduce specific complication of exploitation.
Summary of the invention
[technical problem to be solved]
The present invention researches and develops in order to address the above problem just, purpose is to provide a kind of airbag structure, when keeping the above-mentioned original function of air bag (cuff), that is, by stopping up between endotracheal tube and the inner surface of trachea, prevent that pharyngeal secretions from flowing in the trachea, prevent from when positive airway pressure, leaking gas, meanwhile, can also make the contact surface of air bag and tracheal mucosa realize minimizing, the generation of the complication such as the ischemia injury after the minimizing endotracheal tube uses or throat pain.
Another object of the present invention is to, make the airbag structure of expansion be the ripple form, realize the minimized while with the tracheal mucosa contact surface, can keep the original function of air bag.
The present invention also aims to provide a kind of endotracheal tube, comprise the airbag structure of the ripple form that is water wave-shaped.
[technical scheme that adopts]
For realizing above-mentioned technical problem, the invention provides the endotracheal tube that a kind of novel conduct is used for tracheal intubation, this endotracheal tube comprises: hollow tubular body has the endotracheal terminal part of insertion and reaches in the base end part of this terminal part opposite end; Expandable air bag near above-mentioned hollow tubular body terminal part, is installed on the outer surface of hollow tubular body; And conduit, be connected in above-mentioned air bag, import the required air of airbag inflation; Behind the above-mentioned airbag inflation, form corrugated part at lateral surface.
And feature of the present invention also is: the air bag lateral surface of above-mentioned expansion forms the corrugated part that is consisted of, is water wave-shaped by trough section and crest section.
And feature of the present invention also is: the trough section that consists of above-mentioned air bag has low ductile material when expanding and consists of, and the material that above-mentioned crest section has deep drawing quality when expanding consists of.
And feature of the present invention also is: at terminal indication capsule and the charge valve of connecting of the air bag opposition side of above-mentioned conduit.
And feature of the present invention also is: the part of above-mentioned conduit embeds the outer surface of hollow tubular body.
[obtained useful technique effect]
According to the present invention, when consisting of endotracheal tube and expanding, the air bag that has the water wave-shaped bellows-shaped by lateral surface, stop up between endotracheal tube and the inner surface of trachea, prevent that pharyngeal secretions from flowing in the trachea, and prevent from leaking gas during the positive airway pressure, realize the minimizing of contact surface of air bag and tracheal mucosa, can reduce the generation of the complication such as ischemia injury after the endotracheal tube use and throat pain.
Description of drawings
Fig. 1 is the axonometric chart of endotracheal tube in the past.
Fig. 2 is the user mode figure of the low capacity high pressure air bag in the past installed on the endotracheal tube.
Fig. 3 is the user mode figure of the high power capacity low-pressure air bag in the past installed on the endotracheal tube.
Fig. 4 is the axonometric chart with endotracheal tube of ripple form air bag of the present invention.
Fig. 5 consists of the air bag user mode figure that the present invention has the endotracheal tube of ripple form air bag.
Fig. 6 consists of the air bag user mode partial enlarged drawing that the present invention has the endotracheal tube of ripple form air bag.
Fig. 7 is comparison air bag of the present invention and the photo of air bag application state in the past.
Wherein, description of reference numerals is as follows:
10: terminal part 20: base end part
30: hollow tubular body 40: air bag
50: conduit 60: the indication capsule
70: charge valve 80: trough section
90: crest section
The specific embodiment
With reference to the accompanying drawings, formation of the present invention is described.Fig. 4 is the axonometric chart with endotracheal tube of ripple form air bag of the present invention, Fig. 5 consists of the air bag user mode figure that the present invention has the endotracheal tube of ripple form air bag, and Fig. 6 consists of the air bag user mode partial enlarged drawing that the present invention has the endotracheal tube of ripple form air bag.
The endotracheal tube that the present invention has a ripple form air bag consists of and to comprise: hollow tubular body 30, have both measured lengths, and be hollow tubular, in order to set up air flue and artificial ventilation for the patient; Terminal part 10, a side that is formed at above-mentioned hollow tubular body 30 is terminal, inserts in the trachea; Base end part 20 is formed at the opposite side of above-mentioned hollow tubular body 30; Expandable air bag 40 is installed near on the hollow tubular body 30 of above-mentioned end section 10, can expand at hollow tubular body 30 outer surfaces; Conduit 50, one sides are connected in above-mentioned air bag 40, and opposite side is connected with outside.
Wherein, above-mentioned hollow tubular body 30 and base end part 20 and terminal part 10 are owing to similar with conventional art, therefore omit separately explanation at this.
And after being filled with air by above-mentioned conduit 50, the air bag 40 that originally shrinks is adjacent to trachea (airway) mucosa inwall when expanding as the air bag 40 of feature of the present invention, and it is inner that the blocking-up foreign flows into trachea.
The air bag 40 that plays as above effect needs to adopt expandable special material to make, should first-selected harmless medical high polymer polymer.
More particularly, the polymer that forms above-mentioned air bag 40 can be polyethylene terephthalate (polyethylene terephthalate, PETP), Low Density Polyethylene (lowdensity polyethylene, LDPE), a kind of in the materials such as polrvinyl chloride (polyvinyl chloride), polyurethane (polyurethane, PU), polyester (polyester), polyamide (polyamide).
And, in the present invention, above-mentioned air bag 40 forms corrugated part at lateral surface, to guarantee smoothly expansion and to shrink, above-mentioned corrugated part is integrally formed by trough section 80 and crest section 90, trough section 80 is recessed to form to the inside at a distance of certain intervals, and formation is protruded laterally in crest section 90 between above-mentioned trough section 80 and trough section 80.
Namely, compare with the in the past air bag of high power capacity low-pressure shown in Figure 3 (high volume and low pressure), the air bag 40 that the present invention is the ripple form has reduced the contact area with tracheal mucosa, thereby can significantly reduce causing danger of ischemia injury.
More particularly, by being made into the above-mentioned air bag 40 of ripple form, in the time of not only can realizing expanding and the minimizing of inner surface of trachea mucosa contact surface, can also improve and the compactness of inner surface of trachea mucosa and the sealing of trachea inside simultaneously.
And, by minimizing of realization and inner surface of trachea mucous layer contact surface, after using endotracheal tube to perform the operation, the significantly generation of the complication such as reduction ischemia injury and throat pain.
In addition, the trough section 80 that consists of above-mentioned air bag 40 can arbitrarily add and subtract according to use and purpose etc. with the number of crest section 90, in the present invention, describes as example to form 1～10.
That is, consisting of the trough section 80 of above-mentioned air bag 40 and number and the material of crest section 90 can change because of patient's larynx glottis size, patient age, patient's current state etc.
At this moment, the trough section 80 that consists of above-mentioned air bag 40 has low ductile material when expanding and consists of, the material that above-mentioned crest section 90 has deep drawing quality when expanding consists of, it is to be noted, above-mentioned trough section 80 and crest section 90 can by regulating the characteristic of polymer substance, manufacture numerous species.For example, can regulate the molecular weight of medical polymer, crosslinked (cross link) characteristic, crosslinking degree and side chain kind etc., thereby regulate its elongation property.
One side of conduit 50 is connected in above-mentioned air bag 40, and opposite side is positioned at the outside, and conduit 50 has both measured lengths, is hollow form.
And, be positioned at outside terminal part at conduit 50 indication capsule 60 and charge valve 70 are housed, if indication capsule 60 is subject to then can expanding from the impedance of inner surface of trachea, charge valve 70 is kept above-mentioned indication capsule 60 and air bag 40 interior expansion air pressure.
It is pointed out that the part of above-mentioned conduit 50 can be made into the form that is embedded into hollow tubular body 30 outer surfaces this moment.
Further describe the present invention below by embodiment.
Embodiment
In 2009, Da Han anesthesiology meeting (Korean J Anesthesiol, 2009,56 (5): 513-518) utilize the research experiment method of estimating for endotracheal tube, the trachea of the disposable syringe pipe being regarded as people and animal, after endotracheal tube received syringe tube and make airbag inflation, contact surface is compared.
Endotracheal tube of the present invention twines silk threads at two positions of air bag in the past, has formed crest section and three trough sections when making its expansion not surpass certain limit.
At ripple air bag of the present invention position, as press contact surface lateral cross section length computation, contact surface is about 1mm, and the lateral cross section length of three part contact surfaces amounts to 3mm.In contrast, the contact surface lateral cross section length of air bag was about 1.5cm in the past, was 5 times of air bag contact area of the present invention.On the other hand, the airbag structure of the present invention and conventional art has all effectively been blocked Air Flow.
Although above with reference to accompanying drawing; take given shape and direction as main; the endotracheal tube that the present invention is had ripple form air bag is illustrated; but those skilled in the art in the invention can carry out various deformation and change to the present invention, and these distortion and change still belong within the claimed interest field of the present invention.
Claims (4)
1. endotracheal tube with ripple form air bag, it is characterized in that: this endotracheal tube comprises:
Hollow tubular body is as the endotracheal tube that is used for tracheal intubation, with inserting endotracheal terminal part and being positioned at the base end part of the end opposite of this terminal part;
Expandable air bag, the terminal part near described hollow tubular body is installed on the outer surface of described hollow tubular body; And
Conduit is connected in described air bag, is used for importing the required air of airbag inflation; Behind the described airbag inflation, form corrugated part at lateral surface.
2. the endotracheal tube with ripple form air bag according to claim 1 is characterized in that:
The corrugated part of the air bag lateral surface of described expansion is made of trough section and crest section.
3. the endotracheal tube with ripple form air bag according to claim 1 is characterized in that:
At terminal indication capsule and the charge valve installed of the air bag opposition side of described conduit.
4. the endotracheal tube with ripple form air bag according to claim 1 is characterized in that:
The part of described conduit presents the form that embeds the hollow tubular body surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102519847A CN102949772A (en) | 2011-08-26 | 2011-08-26 | Tracheal catheter with corrugated air sac |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102519847A CN102949772A (en) | 2011-08-26 | 2011-08-26 | Tracheal catheter with corrugated air sac |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102949772A true CN102949772A (en) | 2013-03-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102519847A Pending CN102949772A (en) | 2011-08-26 | 2011-08-26 | Tracheal catheter with corrugated air sac |
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| Country | Link |
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| CN (1) | CN102949772A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105031793A (en) * | 2015-06-30 | 2015-11-11 | 四川大学华西医院 | Trachea cannula |
| CN108245277A (en) * | 2018-01-19 | 2018-07-06 | 东北农业大学 | A kind of big build pig trachea cannula |
| CN109420231A (en) * | 2017-08-31 | 2019-03-05 | Q内窥镜股份有限公司 | Trachea cannula drainage system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3810474A (en) * | 1971-09-24 | 1974-05-14 | Smiths Industries Ltd | Tubing |
| US4289128A (en) * | 1978-06-29 | 1981-09-15 | Willy Rusch Gmbh & Co. Kg. | Laryngeal tube |
| US4340046A (en) * | 1980-12-08 | 1982-07-20 | Cox Everard F | Static tracheostomy tube |
| WO1995009665A1 (en) * | 1993-10-06 | 1995-04-13 | WILLY RüSCH AG | Inflatable instrument for natural and/or artificial body cavities |
| CN2617396Y (en) * | 2003-05-06 | 2004-05-26 | 复旦大学附属上海市第五人民医院 | Single-cavity double-pocket tracheacannula conduit |
| CN201132001Y (en) * | 2007-10-11 | 2008-10-15 | 何学明 | Flexible tracheal catheter |
-
2011
- 2011-08-26 CN CN2011102519847A patent/CN102949772A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3810474A (en) * | 1971-09-24 | 1974-05-14 | Smiths Industries Ltd | Tubing |
| US4289128A (en) * | 1978-06-29 | 1981-09-15 | Willy Rusch Gmbh & Co. Kg. | Laryngeal tube |
| US4340046A (en) * | 1980-12-08 | 1982-07-20 | Cox Everard F | Static tracheostomy tube |
| WO1995009665A1 (en) * | 1993-10-06 | 1995-04-13 | WILLY RüSCH AG | Inflatable instrument for natural and/or artificial body cavities |
| CN2617396Y (en) * | 2003-05-06 | 2004-05-26 | 复旦大学附属上海市第五人民医院 | Single-cavity double-pocket tracheacannula conduit |
| CN201132001Y (en) * | 2007-10-11 | 2008-10-15 | 何学明 | Flexible tracheal catheter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105031793A (en) * | 2015-06-30 | 2015-11-11 | 四川大学华西医院 | Trachea cannula |
| CN109420231A (en) * | 2017-08-31 | 2019-03-05 | Q内窥镜股份有限公司 | Trachea cannula drainage system |
| CN108245277A (en) * | 2018-01-19 | 2018-07-06 | 东北农业大学 | A kind of big build pig trachea cannula |
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Application publication date: 20130306 |