CN207763899U - A kind of tracheal catheter experimental facilities - Google Patents
A kind of tracheal catheter experimental facilities Download PDFInfo
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- CN207763899U CN207763899U CN201820175274.8U CN201820175274U CN207763899U CN 207763899 U CN207763899 U CN 207763899U CN 201820175274 U CN201820175274 U CN 201820175274U CN 207763899 U CN207763899 U CN 207763899U
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- pipe
- tracheal catheter
- air flue
- branch
- air bag
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Abstract
The utility model discloses a kind of tracheal catheter experimental facilities, it simulates and manages including air flue, first branch of the air flue simulation pipe is equipped with the vertical portion that straight up and can be inserted tracheal catheter, second branch levels direction of the air flue simulation pipe is sealedly connected with to simulate the artificial lung of lung, first branch and second branch are connected to the manifold of air flue simulation pipe lower part, the bottom of the manifold is closed, the lower part of the air flue simulation pipe is equipped with to be passed through the input port of carbon dioxide, the top of the air flue simulation pipe is equipped with to detect the detection mouth of gas concentration lwevel.Tracheal catheter experimental simulation equipment provided by the utility model is passed through carbon dioxide below air bag, the gas concentration lwevel that air bag overhead gas is detected by the detection mouth above air bag, so that it is determined that the correspondence of gas bag sealing and air bag overhead gas gas concentration lwevel.
Description
Technical field
The utility model is related to medical experiment equipment technical fields, and in particular to a kind of tracheal catheter experimental facilities.
Background technology
Tracheal catheter is the effective means for ensureing airway patency, and particularly important effect, patient are played during rescue
Air flue be inserted into tracheal catheter after, swallowing for patient is limited, and oral secretion and gastroesophageal reflux object are stranded in by air bag barrier
Above air bag, and form Subglottic secretion.If poorly sealed between air flue and air bag, the gas leakage around air bag, gas will be caused
On capsule point must object leak into lower respiratory tract along airbag wall, cause accidentally to inhale, cause Ventilator Associated Pneumonia.Tracheal catheter air bag is close
The management of closing property is the key points and difficulties of emergency and severe disease medical research.
The management method of gas bag sealing is maintained the pressure in air bag in certain preset range in the prior art,
But gas bag sealing is affected by various factors, such as：Trachea cannula model, vacuum suction, end-expiratory positive pressure, the shape of air bag
Therefore shape and material etc. in order to ensure that gas bag sealing is good, need to carry out dynamic monitoring to the seal of air bag, and to gas
Bag pressure power is into Mobile state management.
Carbon dioxide with higher concentration in the gas of patient's exhalation is suffered from if leaked between air bag and air flue
The gas of person's exhalation can enter along the gap of leakage between air bag and glottis, by detect gas between patient's glottis and air bag two
Concentration of carbon is aoxidized, may be implemented to carry out dynamic monitoring to the seal of air bag, but gas two between patient's glottis and air bag at present
The correspondence of oxidation concentration of carbon and gas bag sealing does not determine.
Therefore, how one kind is provided and can determine gas concentration lwevel and gas bag sealing correspondence between air bag and glottis
Tracheal catheter experimental facilities, be those skilled in the art's technical issues that need to address.
Utility model content
The purpose of this utility model is to provide a kind of tracheal catheter experimental facilities, is able to verify that gas concentration lwevel and gas
The correspondence of capsule leakproofness.
To achieve the above object, the utility model provides a kind of tracheal catheter experimental facilities, including air flue simulation pipe, described
First branch of air flue simulation pipe is equipped with the vertical portion that straight up and can be inserted tracheal catheter, the air flue simulation
Second branch levels direction of pipe is sealedly connected with to simulate the artificial lung of lung, first branch and second branch
It is connected to the manifold of air flue simulation pipe lower part, the bottom of the manifold is closed, and the lower part of the air flue simulation pipe, which is equipped with, to be used
To be passed through the input port of carbon dioxide, the top of the air flue simulation pipe is equipped with to detect the detection mouth of gas concentration lwevel.
Preferably, the upper port of the vertical portion is equipped with the sealing cover to seal, and the sealing cover is equipped with to make gas
The top of the via that cannula passes through, the vertical portion is equipped with pressure balanced pressure above the air bag to maintain trachea cannula
Balance pipe.
Preferably, the pressure-equalizing pipe is located at the vertical portion side wall, and opposite with the detection mouth, and the pressure is flat
The position of weighing apparatus pipe is higher than the detection mouth.Preferably, the input port is horizontally disposed in the root of second branch.
Preferably, the sealing cover is equipped with liquid injection port, and liquid trap is sealedly connected with below the manifold.
Preferably, the input port is set to the root of second branch, and horizontally disposed.
Preferably, further include the fixing bracket that pipe is simulated to the fixation air flue, the fixing bracket include with it is described
The connected fixed column in vertical portion.
Tracheal catheter experimental facilities provided by the utility model is by air flue simulation pipe with artificial lung to the breathing system of patient
System simulated, tracheal catheter be inserted into vertical portion in, air bag be bonded with vertical portion side wall it is closed, lung ventilator by tracheal catheter to
It ventilates in artificial lung, artificial lung expands under gas pressure and shrink the respiration under simulation patient assists under lung ventilator.
The input port of carbon dioxide is equipped with below air bag, the carbon dioxide by being passed through appropriate concentration generated when simulating patient expiration two
Carbonoxide, since air flue simulates pipe lower seal, once air bag is revealed, carbon dioxide can be spread at the leakage of air bag surrounding
Above to air bag, then by the gas concentration lwevel of the detection mouth detection air bag overhead gas above air bag, and then judge air bag
Leakproofness obtains the gas concentration lwevel of air bag overhead gas and the correspondence of leakproofness.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is by a kind of structural schematic diagram for the tracheal catheter experimental facilities that specific implementation mode provides of the utility model.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
In order to make those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and specifically
The utility model is described in further detail for embodiment.
Referring to FIG. 1, Fig. 1 is by a kind of knot for the tracheal catheter experimental facilities that specific implementation mode provides of the utility model
Structure schematic diagram.
Tracheal catheter experimental facilities provided by the utility model, including air flue simulate pipe 1, the air flue simulation pipe 1
The top of first branch is equipped with straight up and is inserted into the vertical portion of tracheal catheter, and the air flue simulates second point of pipe 1
Branch horizontal direction is sealedly connected with to simulate the artificial lung 4 of lung, first branch and second branch and the gas
The manifold connections of 1 lower part of pipe are simulated in road, and the bottom of the manifold is closed, and the lower part of the air flue simulation pipe 1 is equipped with to be passed through
The top of the input port 11 of carbon dioxide, the vertical portion is equipped with to detect the detection mouth 12 of gas concentration lwevel.
Trachea cannula 3 is inserted into vertical portion in experimentation, and the air bag 35 of trachea cannula 3 blocks vertical portion, detection mouth
12 are located at the top of air bag 35, and input port 11 is located at the lower section of air bag 35.Trachea cannula 3 is connected with lung ventilator thus to air flue mould
It ventilates in quasi- pipe 1.
Air flue simulates pipe 1 and artificial lung 4 simulates the respiratory system of human body, specifically, air flue simulation pipe 1 is Y type air flue moulds
Quasi- pipe 1, Y type air flues simulate two that pipe 1 upwardly extends and branch into the first branch and the second branch, and it is manifold to extend downwardly.
Certainly, user can also use the quasi- pipe of T-shaped mould or the simulation pipe of other shapes as needed.
The variable volume of artificial lung 4 can simulate the expansion and contraction of human body lung space in respiratory, artificial lung
4 can be specially one end sealing other end and the folded tube that the second branch is tightly connected, or rubber pneumatic bag 35 etc..Due to
Patient normally lies on sick bed in therapeutic process, and artificial lung 4 is horizontally disposed in the present embodiment, so that experimental model more accords with
Close the situation of clinically patient.
Air flue simulation pipe 1 side wall can also vertically to being externally provided with detection connecting tube and input connecting tube, detection connecting tube and
Input connecting tube is connected with detection mouth 12 and input port 11 respectively, and detection connecting tube is connected with carbon dioxide detection device, inputs
Connecting tube is connected with carbon dioxide input unit, and carbon dioxide input unit simulates in pipe 1 to air flue and is passed through carbon dioxide, dioxy
Change the gas that carbon detection device extracts 35 top of air bag, measures gas concentration lwevel therein, carbon dioxide input unit and two
Carbonoxide detection device can refer to the prior art, and details are not described herein.
Clinically, the gas of patient's exhalation by lung into air entering flue, the carbon dioxide containing higher concentration in gas, this reality
It applies artificial lung 4 in example with the second branch to be connected, input port 11 is set to the root of the second branch, can more preferable simulation Patients with Lung
The situation that portion gives off carbon dioxide, input port 11 is horizontally disposed, identical as the outgassing direction of artificial lung 4, meets clinic
The situation of upper patient respiratory.
In a tubular form, the lower part of trachea cannula 3 is arranged with air bag 35 to trachea cannula 3, and trachea cannula 3 is equipped with to air bag 35 and inflates
Air-filled pore 31 be connected with gas tube 32, trachea cannula 3 be additionally provided with the lung ventilator interface channel 33 being connected with lung ventilator and with suction
The connected vacuum suction channel 34 of phlegm device.The concrete structure of trachea cannula 3 can refer to the prior art.
The present embodiment simulates pipe 1 by air flue and artificial lung 4 simulates human respiratory, and dioxy is passed through by 35 lower section of air bag
It is dense to detect the carbon dioxide that air bag 35 is revealed by the detection mouth 12 of 35 top of air bag for the carbon dioxide for changing carbon simulation patient's exhalation
Degree, so as to determine the correspondence between 35 seal of air bag and the gas concentration lwevel of the leakage of air bag 35.
Carbon dioxide in 35 overhead gas of air bag may be overflowed from the upper port of vertical portion, and carbon dioxide is caused to dissipate,
It dissipates to reduce carbon dioxide, improves the accuracy of detection, the upper port of vertical portion is equipped with the sealing cover 5 to seal, sealing
Lid 5 is equipped with the via to make trachea cannula 3 pass through, and the top of vertical portion is equipped on the air bag 35 to maintain trachea cannula 3
Square pressure balanced pressure-equalizing pipe 14.
In the present embodiment, trachea cannula 3 can pass through the via on sealing cover 5, and sealing cover 5 can be specially serum cap, close
The end face of capping 5 is equipped with cross-cut, and cross-cut center is via, and via diameter is equal with the diameter of trachea cannula 3,
The end face that sealing cover 5 is turned down along cross-cut, via expands after fold, and air bag 35 passes through in the via from after expanding, and makes close
Capping 5 is sleeved on 3 periphery of trachea cannula.After air bag 35 passes through sealing cover 5, end face, which is turned back, completes the installation of trachea cannula 3.Tracheae is inserted
Pipe 3 can smear fluid sealant or stop-leak compound after installation is complete at cross-cut and via, and the sealing to improve sealing cover 5 is imitated
Fruit.Air bag 35 is inserted into vertical portion again, sealing cover 5 fastens the upper port of vertical portion, completes the close of 35 overhead gas of air bag
Envelope.Certainly, the notch that other shapes are may also set up on sealing cover 5, does not limit herein.
Airtight space between trachea cannula 3, vertical portion and sealing cover 5, and clinically between glottis and trachea cannula 3 and non-fully
Closed, the air pressure between glottis and trachea cannula 3 is approximately equal to atmospheric pressure, in order to simulate between clinically glottis and trachea cannula 3
State, the top of the present embodiment vertical portion are equipped with pressure-equalizing pipe 14, and by vertical portion be located at the space of 35 top of air bag with greatly
Gas is connected to, and maintains the stable gas pressure at the position, and the smaller carbon dioxide dissipation amount caused by it of 14 diameter of pressure-equalizing pipe also compares
It is small.
Because the molecular weight of carbon dioxide is more than air average molecular weight, to reduce the titanium dioxide that pressure-equalizing pipe 14 dissipates
Carbon amounts makes the accuracy for improving and measuring, in the present embodiment, the top opposite side positioned at detection mouth 12 of pressure-equalizing pipe 14
On the side wall of vertical portion.
It clinically often will produce secretion in patients with respiratory tract, the sealing cover 5 of the present embodiment is equipped with liquid injection port 51, passes through
Liquid injection port 51 injects liquid into vertical portion, simulates the juice of human body, due to air bag 35 and mutually closed between vertical portion, liquid note
The top of air bag 35 is rested on after entering, liquid trap 15 is sealedly connected with below manifold, once air bag 35 leaks, liquid can edge
Vertical portion flows downward in liquid trap 15.
Liquid injection port 51 is only opened when injecting liquid, when being operated without fluid injection liquid injection port 51 can by rubber plug etc. into
Row blocks.
Vertical portion and liquid trap 15 in the present embodiment are equipped with scale, and the leakage of air bag 35 can be read from scale
Amount, leakage rate and gas concentration lwevel, which are carried out comparison, can preferably determine between 35 seal of gas concentration lwevel and air bag
Correspondence.
End-expiratory positive pressure is an important factor in order of 35 seal of air bag, and clinically tracheal catheter is often matched with lung ventilator
It closes and uses, by lung ventilator to patient's forced-ventilation, the pressure of air flue end is end-expiratory positive pressure at this time.Second branch is equipped with pressure
Power detection pipe 13, pressure detecting pipe 13 are connected with pressure sensor, can measure the last air pressure of breathing.
The liquid of 35 top of air bag can be under the first affluent-dividing, and pressure detecting pipe 13 is vertically upright set to second point
Branch, the position of pressure detecting pipe 13 avoid the position of liquid flowing, can prevent the liquid that 35 top of air bag is revealed from entering pressure
In power detection pipe 13, liquid is avoided to impact pressure measurements.
During ventilating during lung ventilator simulates pipe 1 to air flue, 35 overhead gas gas concentration lwevel of air bag is measured
Variation can determine the correspondence of 35 overhead gas gas concentration lwevel of air bag and the last positive pressure variation of breathing.
Clinically, it to prevent 35 top of air bag from accumulating excessive secretion, needs that 35 top of air bag is sucked out by sputum aspirator
Secretion.Vacuum suction is that influence factor is wanted in 35 seal of air bag, and vacuum suction refers to that sputum aspirator draws juice
Process measures the changes of concentrations of carbon dioxide energy of 35 overhead gas of air bag during sputum aspirator draws 35 upper liquid of air bag
Enough determine the correspondence of gas concentration lwevel and vacuum suction.
The utility model further includes the fixing bracket that pipe 1 is simulated to fixed Y type air flues, and fixing bracket includes and vertical portion
Connected fixed column 6.Fixed column 6 stands on the side of Y type air flues simulation pipe 1, is fixed by clip and vertical portion, under fixed column 6
Experiment porch is fixed in side.
Tracheal catheter experimental facilities provided by the utility model is equipped with the carbon dioxide input port for being located at 35 lower section of air bag
11 and the carbon dioxide detection mouth 12 above air bag 35, it is simulated between pipe 1 by air bag 35 and air flue by the detection of detection mouth 12
Gap leakage gas concentration lwevel, so that it is determined that the quantitative relationship between 35 seal of gas concentration lwevel and air bag.
It should be noted that in the present specification, such as first and second etc relational terms are used merely to one
Entity is distinguished with other several entities, and without necessarily requiring or implying between these entities, there are any this actual
Relationship or sequence.
Tracheal catheter experimental facilities provided by the utility model is described in detail above.Tool used herein
Body example is expounded the principles of the present invention and embodiment, and the explanation of above example is only intended to help to understand
The method and its core concept of the utility model.It should be pointed out that for those skilled in the art, not taking off
Under the premise of from the utility model principle, several improvements and modifications can be made to this utility model, these improvement and modification
It also falls into the protection domain of the utility model claims.
Claims (7)
1. a kind of tracheal catheter experimental facilities, which is characterized in that simulate pipe (1) including air flue, the of air flue simulation pipe (1)
The top of one branch is equipped with the vertical portion that straight up and can be inserted tracheal catheter, the air flue simulation pipe (1)
Second branch levels direction is sealedly connected with to simulate the artificial lung (4) of lung, first branch and second branch
The manifold that pipe (1) lower part is simulated with the air flue is connected to, and the bottom of the manifold is closed, under the air flue simulation pipe (1)
Portion is equipped with to be passed through the input port (11) of carbon dioxide, and the top of the vertical portion is equipped with to detect gas concentration lwevel
Detection mouth (12).
2. tracheal catheter experimental facilities according to claim 1, which is characterized in that the upper port of the vertical portion, which is equipped with, to be used
With the sealing cover (5) of sealing, the sealing cover (5) is equipped with to the via that makes trachea cannula (3) pass through, the vertical portion it is upper
Portion is equipped with pressure balanced pressure-equalizing pipe (14) above the air bag (35) to maintain trachea cannula (3).
3. tracheal catheter experimental facilities according to claim 2, which is characterized in that the pressure-equalizing pipe (14) is located at institute
Vertical portion side wall is stated, and relatively with the detection mouth (12), the position of the pressure-equalizing pipe (14) is higher than the detection mouth
(12)。
4. tracheal catheter experimental facilities according to claim 1, which is characterized in that the input port (11) is set to described
The root of second branch, and it is horizontally disposed.
5. tracheal catheter experimental facilities according to claim 2, which is characterized in that the sealing cover (5) is equipped with liquid injection port
(51), it is sealedly connected with liquid trap (15) below the manifold.
6. tracheal catheter experimental facilities according to any one of claims 1 to 5, which is characterized in that second branch sets
There is pressure detecting pipe (13) straight up.
7. tracheal catheter experimental facilities according to claim 6, which is characterized in that further include to the fixation air flue mould
The fixing bracket of quasi- pipe (1), the fixing bracket includes the fixed column (6) being connected with the vertical portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820175274.8U CN207763899U (en) | 2018-01-31 | 2018-01-31 | A kind of tracheal catheter experimental facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820175274.8U CN207763899U (en) | 2018-01-31 | 2018-01-31 | A kind of tracheal catheter experimental facilities |
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| Publication Number | Publication Date |
|---|---|
| CN207763899U true CN207763899U (en) | 2018-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820175274.8U Expired - Fee Related CN207763899U (en) | 2018-01-31 | 2018-01-31 | A kind of tracheal catheter experimental facilities |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112802388A (en) * | 2021-01-05 | 2021-05-14 | 上海交通大学医学院附属第九人民医院 | Clear-headed intubation teaching simulation dummy |
-
2018
- 2018-01-31 CN CN201820175274.8U patent/CN207763899U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112802388A (en) * | 2021-01-05 | 2021-05-14 | 上海交通大学医学院附属第九人民医院 | Clear-headed intubation teaching simulation dummy |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180824 Termination date: 20200131 |