CN205759038U - A kind of pump-free type ECMO - Google Patents
A kind of pump-free type ECMO Download PDFInfo
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- CN205759038U CN205759038U CN201620338453.XU CN201620338453U CN205759038U CN 205759038 U CN205759038 U CN 205759038U CN 201620338453 U CN201620338453 U CN 201620338453U CN 205759038 U CN205759038 U CN 205759038U
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- blood
- chamber
- oxygenation chamber
- pump
- inlet
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Abstract
This utility model embodiment discloses a kind of pump-free type ECMO, including cylindric oxygenation chamber, it is provided with blood channel in described oxygenation chamber and is positioned at blood inlet and the blood outlet at described blood channel two ends, blood outlet is located on the bottom end face of oxygenation chamber, and blood inlet is located on the bottom sidewall of oxygenation chamber and blood inlet is provided with filter；Being additionally provided with gas exchange units in oxygenation chamber, the hollow fiber conduit that gas exchange units is arranged by multilamellar forms；The top of oxygenation chamber is provided with exhaust chamber, bottom is provided with inlet plenum；The two ends of gas exchange units are connected with exhaust chamber and inlet plenum respectively.The oxygenator of the present embodiment is without blood pump and heat exchanger, simple in construction, it is possible to makes the preliminary filling oligemia of whole system, and then reaches the purpose of Saving on oil；Blood inlet is provided with filter, the blood entering gas exchange units can be carried out pre-filtering, and the element of coagulation in anti-Hemostatic Oral Liquid causes the blocking of fiber pipe fenestra, extends the use time of oxygenator.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly relates to a kind of pump-free type ECMO.
Background technology
Membrane oxygenator is the medical apparatus and instruments that cardiac arrest replaces lung, has O in regulation blood2And CO2The function of content,
It is the necessary armarium of operation on vessels of heart, is also that treatment acute respiratory illness sets with wait lung transplantation stage necessary medical treatment
Standby.Its principle is by outside internal venous blood lead body, carries out interior O after membrane oxygenator temperature varying system2And CO2Exchange becomes
Become arterial blood, then feed back patient artery system, maintain the supply of human internal organ tissue oxygenation blood, temporarily substitute in operation process
Lung effect, provides quiet, depletion of blood and surgical environments clearly for doctor, in order to implement operation simultaneously.
The most conventional oxygenator for external Breathing Suppotion is for there being pump-type, and it is mainly by oxygenator, blood pump and Re Jiao
Parallel operation three part forms.Wherein blood pump is used for providing power, is extracted out from human body artery/vein by blood, abundant via oxygenator
Oxygenate, enters heat exchanger after getting rid of carbon dioxide, to make up the thermal losses in During Cpb, re-enters human body afterwards
In, reach to be changed into venous blood the purpose of arterial blood.
But, above-mentioned have the oxygenator of pump-type in process of clinical application, the meeting in operation process of blood pump and heat exchanger
To causing a certain degree of destruction by its interior blood of convection current, and also blood priming volume in oxygenator can be increased.
Utility model content
This utility model embodiment provides a kind of pump-free type ECMO, to solve of the prior art to have
The oxygenator of pump-type destroys blood and the problem of waste blood in the process of use.
In order to solve above-mentioned technical problem, this utility model embodiment discloses following technical scheme:
This utility model embodiment provides a kind of pump-free type ECMO, including cylindric oxygenation chamber, institute
It is provided with blood channel in stating oxygenation chamber and is positioned at blood inlet and the blood outlet at described blood channel two ends, wherein:
Described blood outlet is located on the bottom end face of described oxygenation chamber, and described blood inlet is located at the bottom side of described oxygenation chamber
On wall, described blood inlet is provided with filter；
Gas exchange units, the hollow fiber conduit that described gas exchange units is arranged it is additionally provided with by multilamellar in described oxygenation chamber
Composition；
The top of described oxygenation chamber is provided with exhaust chamber, bottom is provided with inlet plenum, and described exhaust chamber is provided with and communicates with air
Air vent, described inlet plenum be provided with connect oxygen catheter air inlet；
The two ends of described gas exchange units are connected with described exhaust chamber and described inlet plenum respectively.
Preferably, described hollow fiber conduit is the hollow silicone rubber fiber pipe being covered with silastic-layer in outer pipe wall.
Preferably, on the tube wall of described hollow silicone rubber fiber pipe, the aperture of fenestra is 0.05-0.1um.
Preferably, what described blood channel included being arranged on described oxygenation chamber side enters that blood is logical and to be positioned at described oxygenation chamber another
The hemorrhage passage of side, and enter blood passage and the interface channel of described hemorrhage passage described in connection；Described gas exchange units
Be two groups and respectively around described enter blood passage and described hemorrhage passage arrange.
Preferably, the bottom of described exhaust chamber connects in succession with the top card of described oxygenation chamber housing, the end of described exhaust chamber
Portion's sidewall is provided with locator card access slot.
Preferably, the top of described inlet plenum is connected with the bottom clamping of described oxygenation chamber housing, the top of described inlet plenum
Portion's sidewall is provided with locator card access slot.
Preferably, the housing of described oxygenation chamber, described exhaust chamber and described inlet plenum is transparent non-toxic high molecular material
Housing.
From above technical scheme, the pump-free type ECMO that this utility model embodiment provides, including circle
The oxygenation chamber of tubular, is provided with blood channel and is positioned at blood inlet and the blood outlet at described blood channel two ends in described oxygenation chamber,
Described blood outlet is located on the bottom end face of described oxygenation chamber, and described blood inlet is located on the bottom sidewall of described oxygenation chamber, institute
State blood inlet and be provided with filter；Being additionally provided with gas exchange units in described oxygenation chamber, described gas exchange units is arranged by multilamellar
The hollow fiber conduit composition of row；The top of described oxygenation chamber is provided with exhaust chamber, bottom is provided with inlet plenum, and described exhaust chamber is provided with
The air vent communicated with air, described inlet plenum is provided with the air inlet connecting oxygen catheter；The two of described gas exchange units
End is connected with described exhaust chamber and described inlet plenum respectively.
In the process of use, blood flows outside hollow fiber conduit, and oxygen is at doughnut Bottomhole pressure and can pass through fibre
Dimension pipe enters in blood, and this endless form has relatively low transmembrane pressure drop, is pumped into by blood so need not blood pump
In oxygenator, simultaneously as need not blood pump both can carry out extracorporeal oxygenation support, bloody path pipeline can shorten accordingly, heat leakage
Reduce, so also without heat exchanger, it is possible to make the preliminary filling oligemia of whole system, Saving on oil can be reached
Purpose；Further, described blood inlet is provided with filter, the blood entering gas exchange units can be carried out pre-filtering,
Precipitation in anti-Hemostatic Oral Liquid and element of coagulation cause the blocking of the fenestra of hollow fiber conduit, extend the use time of oxygenator.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, for ordinary skill people
For Yuan, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The external structure schematic diagram of a kind of pump-free type ECMO that Fig. 1 provides for this utility model embodiment；
Fig. 2 is the cross-sectional view of the pump-free type ECMO in Fig. 1；
In Fig. 1 and Fig. 2, concrete symbol table is shown as:
1-oxygenation chamber, 2-blood inlet, 3-blood outlet, 4-gas exchange units, 5-exhaust chamber, 6-inlet plenum, 11-enters blood and leads to
Road, the hemorrhage passage of 12-, 13-interface channel, 21-filter, 51-air vent, 61-air inlet.
Detailed description of the invention
For the technical scheme making those skilled in the art be more fully understood that in this utility model, below in conjunction with this reality
With the accompanying drawing in new embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that
Described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on this utility model
In embodiment, the every other enforcement that those of ordinary skill in the art are obtained under not making creative work premise
Example, all should belong to the scope of this utility model protection.
See Fig. 1 and Fig. 2, outside a kind of pump-free type ECMO that respectively this utility model embodiment provides
Portion and cross-sectional view.
Described oxygenator includes the oxygenation chamber 1 of cylindrical shape, is provided with blood channel and is positioned at described blood in described oxygenation chamber 1
The blood inlet 2 at passage two ends and blood outlet 3, described blood outlet 3 is located on the bottom end face of described oxygenation chamber 1, described blood inlet 2
It is located on the bottom sidewall of described oxygenation chamber 1, in described oxygenation chamber 1, is additionally provided with gas exchange units 4, described gas exchange units
4 hollow fiber conduits arranged by multilamellar form, and the gap between described hollow fiber conduit is connected with described blood channel；Described oxygen
The top closing room 1 is provided with exhaust chamber 5, bottom is provided with inlet plenum 6, and described exhaust chamber 5 is provided with the air vent 51 communicated with air,
Described inlet plenum 6 is provided with the air inlet 61 connecting oxygen catheter；The two ends of described gas exchange units 4 respectively with described aerofluxus
Room 5 is connected with described inlet plenum 6.
In the process of use, oxygen is entered in described inlet plenum 6 by described air inlet 61, and enters described gas exchange units
In 4, meanwhile, venous blood is entered described blood channel by described blood inlet 2, pass in described hollow fiber conduit the oxygen of fenestra with
Described venous blood oxygenate, the carbon dioxide discharged after oxygenate enters described discharge chamber 5 and is discharged by described air vent 51, oxygenate
After blood flow out from described blood outlet 3.
Above-mentioned endless form has relatively low transmembrane pressure drop, pumps in oxygenator so need not blood pump by blood,
Simultaneously as need not blood pump both can carry out extracorporeal oxygenation support, bloody path pipeline can shorten accordingly, and heat leakage reduces, so
Also without heat exchanger, it is possible to make the preliminary filling oligemia of whole system, the purpose of Saving on oil can be reached.
Meanwhile, the top of described oxygenation chamber 1 is provided with exhaust chamber 5, bottom is provided with inlet plenum 6, in the process of use, if fiber pipe
Rupturing, gas leaks in blood, owing to the density of gas is less, will float to the top of described oxygenation chamber 1, and enters
Described exhaust chamber 5 is discharged, and so can be prevented effectively from the generation of bleeding blister phenomenon.
Further, described blood inlet 2 is located on the bottom sidewall of described oxygenation chamber 1, and described blood inlet 2 is provided with filtration
Device 21.The blood entering gas exchange units can be filtered by described filter 21, the precipitation in anti-Hemostatic Oral Liquid and solidification
Composition causes the blocking of the fenestra of hollow fiber conduit, extends the use time of oxygenator；Meanwhile, described blood inlet 2 is located at described
On the bottom sidewall of oxygenation chamber 1, the blood precipitate filtered out can be deposited on the bottom of described blood inlet 2 pipeline, with existing
Direct being located on the bottom end face of described oxygenation chamber 1 by described blood inlet 2 in technology is compared, and can avoid blood precipitate pair
Described filter 21 blocks, the problem needing increasing pressure reduction could pump in oxygenator by blood caused.
In the present embodiment, the hollow fiber conduit in described gas exchange units 4 is to be covered with silastic-layer in outer pipe wall
Hollow silicone rubber fiber pipe, owing to silicone rubber has good oxygen permeability and blood compatibility, so the rubber that the present embodiment provides
Glue fiber pipe not only has good oxygen permeability can also anticoagulant effect；Meanwhile, silicone rubber has excellent mechanical property,
The damage of hemocyte can be reduced.
Further, on the tube wall of described hollow silicone rubber fiber pipe, the aperture of fenestra is 0.05-0.1um, by arranging
Described pore diameter range, the purpose being possible not only to reach fine air permeability is also prevented from the infiltration to fenestra of the materials such as blood plasma.
As in figure 2 it is shown, described blood channel includes being arranged on entering blood passage 11 and being positioned at described of described oxygenation chamber 1 side
The hemorrhage passage 12 of oxygenation chamber 1 opposite side, and enter blood passage 11 and the interface channel 13 of described hemorrhage passage 12 described in connection；
Described gas exchange units 20 be two groups and respectively around described enter blood passage 11 and described hemorrhage passage 12 arrange.
In the present embodiment, described gas exchange units 20 is divided into two groups, compared with the gas exchange units of integral type, can
To reduce the length of single fiber pipe, thus reduce the technology difficulty of the manufacturing, can also avoid because there being single fibre simultaneously
A certain regional breakdown in dimension pipe causes the whole problem leaked gas.
The bottom of described exhaust chamber 5 connects in succession with the top card of described oxygenation chamber 1 housing, the bottom side of described exhaust chamber 5
Wall is provided with locator card access slot；The top of described inlet plenum 6 is connected with the bottom clamping of described oxygenation chamber 1 housing, described air inlet
The top sidewall of room 6 is provided with locator card access slot.
By described exhaust chamber 5 and inlet plenum 6 and the activity clamping of described oxygenation chamber 1, can be at described gas exchange list
After unit's 4 breakages, after described oxygenation chamber 1 is taken apart, the gas exchange units more renewed, reach the purpose recycled；Meanwhile, if
Put described locator card access slot, it is possible to achieve the Fast Installation to described oxygenation chamber 1.
Further, the housing of described oxygenation chamber 1, described exhaust chamber 5 and described inlet plenum 6 is transparent non-toxic high molecular
Material housing, the blood circulation situation in medical worker so can be facilitated to observe oxygenator.
It should be noted that in this article, such as the relational terms of " first " and " second " or the like is used merely to one
Individual entity or operation separate with another entity or operating space, and not necessarily require or imply these entities or operate it
Between exist any this reality relation or order.And, term " includes ", " comprising " or its any other variant are intended to
Contain comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include those
Key element, but also include other key elements being not expressly set out, or also include for this process, method, article or set
Standby intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Other identical element is there is also in including the process of described key element, method, article or equipment.
The above is only detailed description of the invention of the present utility model, makes to skilled artisans appreciate that or realize this
Utility model.Multiple amendment to these embodiments will be apparent to one skilled in the art, herein institute
The General Principle of definition can realize in the case of without departing from spirit or scope of the present utility model in other embodiments.
Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to former with disclosed herein
The widest scope that reason is consistent with features of novelty.
Claims (7)
1. a pump-free type ECMO, including cylindric oxygenation chamber (1), it is characterised in that described oxygenation chamber (1)
Inside it is provided with blood channel and is positioned at blood inlet (2) and the blood outlet (3) at described blood channel two ends, wherein:
Described blood outlet (3) is located on the bottom end face of described oxygenation chamber (1), and described blood inlet (2) is located at described oxygenation chamber (1)
Bottom sidewall on, described blood inlet (2) is provided with filter (21)；
Gas exchange units (4), the hollow that described gas exchange units (4) is arranged it is additionally provided with by multilamellar in described oxygenation chamber (1)
Fiber pipe forms；
The top of described oxygenation chamber (1) is provided with exhaust chamber (5), bottom is provided with inlet plenum (6), described exhaust chamber (5) be provided with
The air vent (51) that air communicates, described inlet plenum (6) is provided with the air inlet (61) connecting oxygen catheter；
The two ends of described gas exchange units (4) are connected with described exhaust chamber (5) and described inlet plenum (6) respectively.
Pump-free type ECMO the most according to claim 1, it is characterised in that described hollow fiber conduit is outside
The hollow silicone rubber fiber pipe of silastic-layer it is covered with on tube wall.
Pump-free type ECMO the most according to claim 2, it is characterised in that described hollow silicone rubber fiber pipe
Tube wall on the aperture of fenestra be 0.05-0.1um.
Pump-free type ECMO the most according to claim 1, it is characterised in that described blood channel includes arranging
Entering blood passage (11) and being positioned at the hemorrhage passage (12) of described oxygenation chamber (1) opposite side in described oxygenation chamber (1) side, and
The interface channel (13) of blood passage (11) and described hemorrhage passage (12) is entered described in connection；Described gas exchange units (4) is two
Group and respectively around described enter blood passage (11) and described hemorrhage passage (12) arrange.
Pump-free type ECMO the most according to claim 1, it is characterised in that the bottom of described exhaust chamber (5)
Connecing in succession with the top card of described oxygenation chamber (1) housing, the bottom sidewall of described exhaust chamber (5) is provided with locator card access slot.
Pump-free type ECMO the most according to claim 1 or 5, it is characterised in that the top of described inlet plenum (6)
Portion is connected with the bottom clamping of described oxygenation chamber (1) housing, and the top sidewall of described inlet plenum (6) is provided with locator card access slot.
Pump-free type ECMO the most according to claim 1, it is characterised in that described oxygenation chamber (1), described row
The housing of air chamber (5) and described inlet plenum (6) is transparent non-toxic high molecular material housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620338453.XU CN205759038U (en) | 2016-04-21 | 2016-04-21 | A kind of pump-free type ECMO |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620338453.XU CN205759038U (en) | 2016-04-21 | 2016-04-21 | A kind of pump-free type ECMO |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205759038U true CN205759038U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620338453.XU Expired - Fee Related CN205759038U (en) | 2016-04-21 | 2016-04-21 | A kind of pump-free type ECMO |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113082339A (en) * | 2021-04-15 | 2021-07-09 | 上海超高环保科技股份有限公司 | Method for manufacturing ultra-high molecular artificial lung |
-
2016
- 2016-04-21 CN CN201620338453.XU patent/CN205759038U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113082339A (en) * | 2021-04-15 | 2021-07-09 | 上海超高环保科技股份有限公司 | Method for manufacturing ultra-high molecular artificial lung |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20161207 Termination date: 20170421 |