CN208838246U - Intravascular stent - Google Patents
Intravascular stent Download PDFInfo
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- CN208838246U CN208838246U CN201820795113.9U CN201820795113U CN208838246U CN 208838246 U CN208838246 U CN 208838246U CN 201820795113 U CN201820795113 U CN 201820795113U CN 208838246 U CN208838246 U CN 208838246U
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- air bag
- overlay film
- intravascular
- netted
- inflation
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Abstract
The utility model discloses a stent used in blood vessels, which comprises a shrinkable reticular vascular stent, a first covering film and a second covering film, wherein the first covering film and the second covering film are arranged around the reticular vascular stent, a bonding mechanism is arranged between the first covering film and the second covering film, the first covering film is arranged at the periphery of the second covering film and is in brittle connection with the second covering film, the second covering film is connected with the outer wall of the reticular vascular stent, the first covering film is internally provided with a charging and discharging device for expanding the reticular vascular stent, the charging and discharging device is provided with a plurality of flexible connecting wires for drawing the first covering film, the device is conveyed to a blood leakage position, the reticular vascular stent is gradually expanded from one end to the other end and is contacted with the inner wall of the blood vessel by using the charging and discharging device, when the first covering film and the second covering film are separated through the flexible connecting wires on the charging and discharging device, the bonding mechanism is gradually bonded with the inner wall of the blood vessel, so that the reticular vascular stent can be tightly attached to the blood vessel.
Description
Technical field
The utility model relates to medical apparatus, and in particular to a kind of intravascular bracket.
Background technique
When human body leaks the case where blood in the blood vessels and occurs, blood vessel, which can gradually carry out shrinking, reduces blood loss, and at this time in order to
To leakage blood at carry out leak stopping, need for inner support to be placed in it is intravascular, thus by blood vessel leak blood at block, when leakage blood situation stop
Afterwards, blood vessel can gradually diastole be to original state, and the diameter so as to cause bracket and blood vessel is different, so that bracket and blood vessel
It separates and bracket is caused arbitrarily to shift in the blood vessels, the position of blood vessel leakage blood is caused to cause lasting leakage due to the activity of bracket
Blood, and due to the associativity defective tightness of existing bracket and inner wall, easily cause stent migration excessive, thus to human body blood
Thinner position is managed to result in blockage and damage.
Utility model content
Problem to be solved in the utility model is closely to combine leak stopping and can with blood vessel leakage blood position rapidly
Diastole is carried out with the diastole of blood vessel, and can be avoided a kind of intravascular of bracket and blood vessel generation serious displacement
Bracket.
The utility model provides a kind of intravascular bracket, including contractile netted intravascular stent, described around being set to
The first overlay film and the second overlay film of netted intravascular stent are equipped with adhesion mechanism between first overlay film and second overlay film,
First overlay film is set to the periphery of second overlay film and connect with the second overlay film brittleness, second overlay film and institute
The outer wall for stating netted intravascular stent is connected, and the inside of netted intravascular stent described in first overlay film is equipped with for supportting the big net
The aerating and exhaust device of shape intravascular stent, the aerating and exhaust device are equipped with several flexible connections for the first overlay film described in pull
Line.
Preferably, the adhesion mechanism is the tissue glue-line with mobility.
Preferably, the section of first overlay film is in concave shape, and the section of second overlay film is L-shaped.
Preferably, the both ends of the netted intravascular stent are in bell shape.
Preferably, the aerating and exhaust device include charge and discharge tracheae, the first air bag, the second air bag, third air bag, controller and
Inflation pump, the inflation pump are connected with the charge and discharge tracheae, and the charge and discharge tracheae is equipped with several control valves, described to fill
Bleeder pipe is connected with first air bag, the second air bag and third air bag respectively by several control valves, the flexibility
Connecting line is connected with the charge and discharge tracheae, and the controller is used to control the inflation/deflation and the control valve of the inflation pump
Opening and closing.
Preferably, the section of the first air bag after inflation and third air bag is trapezoidal, the section of the second air bag after inflation
In rectangle.
Preferably, first air bag, the second air bag, be equipped with several lateral through-holes on third air bag.
Preferably, first air bag, the second air bag and third air bag are on the charge and discharge tracheae according to the second air bag,
The arrangement of the sequence of three air bags and the first air bag, second air bag are adjacent with the inflation pump.
Preferably, the distance between first air bag and the second air bag are equal to the length of the netted intravascular stent.
The utility model has the beneficial effects that:
A kind of intravascular bracket of the utility model, when the present apparatus send to leakage blood position when, utilize the charge and discharge
The netted intravascular stent is gradually strutted from one end to the other end and is in contact with blood vessel by device of air aeration, with
This by the cooperation of first overlay film, adhesion mechanism, second overlay film and netted intravascular stent, is filled simultaneously by described
When flexible connection line on means of deflation gradually detaches first overlay film and second overlay film, so that the adhesion mechanism
It is gradually exposed and is gradually bonded with blood vessel, and then will completely be blocked at leakage blood, so that bonding effect and plugging effect
More preferably, blood vessel is avoided in the situation for restoring to be subjected to displacement to the netted intravascular stent caused by after original state, and can be with
Blood vessel contraction and diastole carry out identical movement, improve the applicability of the present apparatus.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only the preferred reality of the utility model
Example is applied, it for those of ordinary skill in the art, without any creative labor, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is a kind of overall structure diagram of intravascular bracket of the utility model；
Fig. 2 is a kind of concrete structure schematic diagram of the aerating and exhaust device of intravascular bracket of the utility model.
In figure, 1 is netted intravascular stent, and 2 be the first overlay film, and 3 be the second overlay film, and 4 be flexible connection line, and 5 be tissue glue
Layer, 6 be charge and discharge tracheae, and 7 be the first air bag, and 8 be the second air bag, and 9 be third air bag, and 10 be controller, and 11 be inflation pump, 12
It is through-hole for control valve, 13.
Specific embodiment
In order to be best understood from the utility model technology contents, specific embodiment is provided below, and practical to this in conjunction with attached drawing
It is novel to be described further.
Referring to Fig. 1 and Fig. 2, the utility model provides a kind of intravascular bracket, including contractile netted intravascular stent
1, around the first overlay film 2 and the second overlay film 3 set on the netted intravascular stent 1, first overlay film 2 and second overlay film
Between 3 be equipped with adhesion mechanism, first overlay film 2 be set to second overlay film 3 periphery and with 3 brittleness of the second overlay film
Connection, second overlay film 3 are connected with the outer wall of the netted intravascular stent 1, netted intravascular stent described in first overlay film 2
1 inside is equipped with the aerating and exhaust device for supportting the big netted intravascular stent 1, and the aerating and exhaust device, which is equipped with, is used for pull
Several flexible connection lines 4 of first overlay film 2, when the present apparatus send to leakage blood position when, utilize the aerating and exhaust device
The netted intravascular stent 1 is gradually strutted from one end to the other end and is in contact with blood vessel by aeration, same with this
When, by the cooperation of first overlay film 2, adhesion mechanism, second overlay film 3 and netted intravascular stent 1, pass through the charge and discharge
When flexible connection line 4 on device of air gradually detaches first overlay film 2 with second overlay film 3, so that the bonder
Structure is gradually exposed and gradually bonds with blood vessel, and then will completely block at leakage blood, so that bonding effect and leak stopping effect
Fruit is more preferable, avoids the situation that blood vessel netted intravascular stent 1 caused after restoring to original state is subjected to displacement, and can
As the contraction and diastole of blood vessel carry out identical movement, the applicability of the present apparatus is improved.
Specifically, the adhesion mechanism is the tissue glue-line 5 with mobility, blood is met due to tissue glue-line 5 and is then solidified,
In the case that first overlay film 2 is gradually detached with second overlay film 3, the tissue glue-line 5 can be along the first overlay film 2
It detaches direction gradually to solidify and be gradually bonded together with blood vessel, to improve the adhesiving effect of tissue glue-line 5.
Specifically, the section of first overlay film 2 is in concave shape, the section of second overlay film 3 is L-shaped, passes through
Cooperate between first overlay film 2 and the structure of the second overlay film 3, tissue glue-line 5 is effectively avoided to leak, the first overlay film 2 and described second
The cavity for holding the tissue glue-line 5, when applying certain pull dynamics, described first are formed by between overlay film 3
Overlay film 2 and the brittleness junction of second overlay film 3 will disconnect, and cover so that blood penetrates into the first overlay film 2 with described second
The position of 3 phase of film separation passes through 2 He of the first overlay film so that tissue glue-line 5 is gradually solidified and bonded with blood vessel
The cooperation of second overlay film 3 avoids the blood when being put into the present apparatus from directly contacting with tissue glue-line 5 and lead to tissue glue-line 5
It is solidified in the position far from leakage blood, to improve the reliability when present apparatus uses.
Specifically, the both ends of the netted intravascular stent 1 are in bell shape, pass through netted 1 both ends of intravascular stent
Bell shape the present apparatus is to a certain extent strutted blood vessel, avoid vessel diameter smaller and cause people
Body blood pressure is higher to be happened.
Specifically, the aerating and exhaust device includes charge and discharge tracheae 6, the first air bag 7, the second air bag 8, third air bag 9, control
Device 10 and inflation pump 11, the inflation pump 11 are connected with the charge and discharge tracheae 6, and the charge and discharge tracheae 6 is equipped with several
Control valve 12, the charge and discharge tracheae 6 by several control valves 12 respectively with first air bag 7, the second air bag 8 and third
Air bag 9 is connected, and the flexible connection line 4 is connected with the charge and discharge tracheae 6, and the controller 10 is for controlling the charge and discharge
The opening and closing of the inflation/deflation of air pump 11 and the control valve 12 control the control valve 12 by the controller 10 respectively
Unlatching in operation may be used and then to the inflation that first air bag 7, the second air bag 8 and third air bag 9 are distinguished
It is strutted accordingly with the different parts according to actual needs to the netted intravascular stent 1, so that netted blood vessel branch
Tissue glue-line 5 effect in the bonding with blood vessel on frame 1 is more preferable, and operation is also relatively simple, when completion blood vessel
When Process of Leaking Stoppage, it is only necessary to first air bag 7, the second air bag 8 and third air bag 9 be deflated respectively, and the inflation/deflation
Pipe 6 is extracted out, so that first overlay film 2 is fully drawn out blood vessel by flexible connection line 4.
Specifically, the section of the first air bag 7 and third air bag 9 after inflation is trapezoidal, the second air bag 8 after inflation is cutd open
Face is in rectangle, by the structure of first air bag 7 and third air bag 9 after inflation, so that the two of the netted intravascular stent 1
End can more be easily formed bell-mouthed shape, and easy to operate.
Specifically, several lateral through-holes 13 are equipped on first air bag 7, the second air bag 8, third air bag 9, due to
First air bag 7, the second air bag 8, third air bag 9 can block the inside of the netted intravascular stent 1 in inflation, to lead
Cause blood circulation unsmooth, and the through-hole 13 can be unsmooth to human body to avoid the blood circulation caused by carrying out during leak repairing
Caused by damage, improve the present apparatus use when safety.
Specifically, first air bag 7, the second air bag 8 and third air bag 9 are on the charge and discharge tracheae 6 according to the second gas
The sequence of capsule 8, third air bag 9 and the first air bag 7 arranges, and second air bag 8 is adjacent with the inflation pump 11, by described
The relationship of the arrangement position of first air bag 7, the second air bag 8 and third air bag 9, between first air bag 7 and third air bag 9
First air bag 7 is first inflated by the length that distance is equal to the netted intravascular stent 1 when carrying out practical operation, from
And one end of netted intravascular stent 1 far from the inflation pump 11 is propped up, thus by the netted intravascular stent 1 in blood
The position of leakage blood is blocked in pipe, and netted intravascular stent 1 is avoided to slide in the blood vessels, then pushes second air bag 8 to netted
The middle part of intravascular stent 1, and the second air bag 8 is inflated and struts netted 1 entirety of intravascular stent, and inflation/deflation described in pull
Pipe 6, so that the first overlay film 2 and the separation of the second overlay film 3, to make the exposure of tissue glue-line 5, since the second air bag 8 is to described
Netted intravascular stent 1 struts effect, and the tissue glue-line 5 can closely be pasted together with blood vessel, when described first
When overlay film 2 and the second overlay film 3 are kept completely separate, then the third air bag 9 is inflated, so that netted intravascular stent 1
The other end be also softened, thus by the bell shape structure at netted 1 both ends of intravascular stent by the netted blood vessel
Bracket 1 is effectively fixed.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (9)
1. a kind of intravascular bracket, which is characterized in that including contractile netted intravascular stent, around set on the netted blood
The first overlay film and the second overlay film of pipe holder, are equipped with adhesion mechanism between first overlay film and second overlay film, and described the
One overlay film be set to second overlay film periphery and connect with the second overlay film brittleness, second overlay film with it is described netted
The outer wall of intravascular stent is connected, and the inside of netted intravascular stent described in first overlay film is equipped with for supportting the big netted blood vessel
The aerating and exhaust device of bracket, the aerating and exhaust device are equipped with several flexible connection lines for the first overlay film described in pull.
2. a kind of intravascular bracket according to claim 1, which is characterized in that the adhesion mechanism is with mobility
Tissue glue-line.
3. a kind of intravascular bracket according to claim 1, which is characterized in that the section of first overlay film is in recessed
The section of font, second overlay film is L-shaped.
4. a kind of intravascular bracket according to claim 1, which is characterized in that the both ends of the netted intravascular stent are in
Bell shape.
5. a kind of intravascular bracket according to claim 1, which is characterized in that the aerating and exhaust device includes inflation/deflation
Pipe, the first air bag, the second air bag, third air bag, controller and inflation pump, the inflation pump are connected with the charge and discharge tracheae
Logical, the charge and discharge tracheae is equipped with several control valves, and the charge and discharge tracheae is by several control valves respectively with described first
Air bag, the second air bag are connected with third air bag, and the flexible connection line is connected with the charge and discharge tracheae, and the controller is used
In the opening and closing for the inflation/deflation and the control valve for controlling the inflation pump.
6. a kind of intravascular bracket according to claim 5, which is characterized in that the first air bag and third gas after inflation
The section of capsule is trapezoidal, and the section of the second air bag after inflation is in rectangle.
7. a kind of intravascular bracket according to claim 5, which is characterized in that first air bag, the second air bag,
Several lateral through-holes are equipped on three air bags.
8. a kind of intravascular bracket according to claim 5, which is characterized in that first air bag, the second air bag and
Third air bag arranges on the charge and discharge tracheae according to the sequence of the second air bag, third air bag and the first air bag, second gas
Capsule is adjacent with the inflation pump.
9. a kind of intravascular bracket according to claim 5, which is characterized in that first air bag and the second air bag it
Between distance be equal to the netted intravascular stent length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820795113.9U CN208838246U (en) | 2018-05-25 | 2018-05-25 | Intravascular stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820795113.9U CN208838246U (en) | 2018-05-25 | 2018-05-25 | Intravascular stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208838246U true CN208838246U (en) | 2019-05-10 |
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ID=66351615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820795113.9U Active CN208838246U (en) | 2018-05-25 | 2018-05-25 | Intravascular stent |
Country Status (1)
| Country | Link |
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| CN (1) | CN208838246U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108670498A (en) * | 2018-05-25 | 2018-10-19 | 海口市人民医院（中南大学湘雅医学院附属海口医院） | Intravascular stent and using method thereof |
-
2018
- 2018-05-25 CN CN201820795113.9U patent/CN208838246U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108670498A (en) * | 2018-05-25 | 2018-10-19 | 海口市人民医院（中南大学湘雅医学院附属海口医院） | Intravascular stent and using method thereof |
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