CN108670498A - Intravascular stent and using method thereof - Google Patents
Intravascular stent and using method thereof Download PDFInfo
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- CN108670498A CN108670498A CN201810545526.6A CN201810545526A CN108670498A CN 108670498 A CN108670498 A CN 108670498A CN 201810545526 A CN201810545526 A CN 201810545526A CN 108670498 A CN108670498 A CN 108670498A
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- air bag
- overlay film
- netted
- charge
- intravascular
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- 238000000034 method Methods 0.000 title claims description 6
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 45
- 239000008280 blood Substances 0.000 claims abstract description 23
- 210000004369 blood Anatomy 0.000 claims abstract description 23
- 230000010062 adhesion mechanism Effects 0.000 claims abstract description 11
- 239000002775 capsule Substances 0.000 claims description 6
- 230000002792 vascular Effects 0.000 abstract 6
- 230000000694 effects Effects 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000003106 tissue adhesive Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2/07—Stent-grafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00646—Type of implements
- A61B2017/0065—Type of implements the implement being an adhesive
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Surgery (AREA)
- Veterinary Medicine (AREA)
- Cardiology (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Pulmonology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Gastroenterology & Hepatology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a stent for use 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, an adhesion 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, an inflation and deflation device for expanding the reticular vascular stent is arranged in the first covering film, a plurality of flexible connecting wires for pulling the first covering film are arranged on the inflation and deflation device, 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 the inflation and deflation device, when the first covering film and the second covering film are separated by the flexible connecting wires on the inflation and deflation device, the adhesion mechanism is gradually adhered 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 present invention relates to medical apparatus, and in particular to a kind of intravascular holder.
Background technology
When human body leaks the case where blood and occurs in the blood vessels, 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 inner support being placed in it is intravascular, to by blood vessel leak blood at block, when leakage blood situation stop
Afterwards, blood vessel can gradual diastole to original state, the diameter so as to cause holder and blood vessel differs so that holder and blood vessel
It detaches and holder 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 holder
Blood, and due to the associativity defective tightness of existing holder and inner wall, easily cause stent migration excessive, to human body blood
Thinner position is managed to result in blockage and damage.
Invention content
Problem to be solved by this invention is closely can be combined leak stopping with blood vessel leakage blood position rapidly and can be with
The diastole of blood vessel and carry out diastole, and a kind of intravascular branch that can avoid holder and blood vessel that serious displacement occurs
Frame.
The present invention provides a kind of intravascular holder, including contractile netted intravascular stent, described netted around being set to
The first overlay film and the second overlay film of intravascular stent are equipped with adhesion mechanism between first overlay film and second overlay film, described
First overlay film is set to the periphery of second overlay film and is connect with the second overlay film brittleness, second overlay film and the net
The outer wall of shape intravascular stent is connected, and netted intravascular stent described in first overlay film is internally provided with for supportting the big netted blood
The aerating and exhaust device of pipe holder, the aerating and exhaust device are equipped with several flexible connection lines for the first overlay film described in pull.
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 for controlling the inflation/deflation of the inflation pump and the control valve
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
It is rectangular.
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 on the charge and discharge tracheae according to the second air bag,
Three air bags and the first air bag are ranked sequentially, and second air bag is 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.
A kind of application method of intravascular holder,
S1：The charge and discharge tracheae and netted intravascular stent that are placed on inside netted intravascular stent while being put into internal blood vessel；
S2：The first air bag on charge and discharge tracheae is aligned to one end of netted intravascular stent, the first gas is opened by controller
Control valve between capsule and charge and discharge tracheae makes the first air bag of inflation pump pair be inflated, then controls charge and discharge by controller
The first air bag of air pump pair is deflated, and the control valve between the first air bag and charge and discharge tracheae is then closed by controller；
S3：The middle part that second air bag is pushed to netted intravascular stent opens the second of inflation pump pair by controller
Control valve between air bag and charge and discharge tracheae makes the second air bag of inflation pump pair be inflated, by the second air bag by netted blood
It is propped up in the middle part of pipe holder, the first overlay film is made to be tightly attached on blood vessel, at the same time, pull charge and discharge tracheae makes flexible connection
Line drives the first overlay film to move and expose tissue glue-line, and tissue glue-line is made to be bonded together with blood vessel；
S4：It is after the first overlay film is detached with netted intravascular stent completely, the third air bag alignment on charge and discharge tracheae is netted
The other end of intravascular stent opens the control valve between third air bag and charge and discharge tracheae by controller, makes inflation pump pair the
Three air bags are inflated, and to allow the other end of netted intravascular stent to form horn-like opening, are then controlled by controller
Inflation pump deflates to third air bag.
The beneficial effects of the present invention are：
A kind of intravascular holder of the present invention is filled when the present apparatus is sent to the position of leakage blood using the inflation/deflation
Aeration is set, the netted intravascular stent is gradually strutted from one end to the other end and is in contact with blood vessel, it is same with this
When, by the cooperation of first overlay film, adhesion mechanism, second overlay film and netted intravascular stent, pass through the inflation/deflation
When flexible connection line on device gradually detaches first overlay film and second overlay film so that the adhesion mechanism is gradual
Exposing and gradually bonded with blood vessel, and then will completely be blocked at leakage blood so that bonding effect and plugging effect are more preferable,
The situation that blood vessel netted intravascular stent caused after restoring to original state is subjected to displacement is avoided, and can be with blood vessel
Contraction and diastole carry out identical movement, improve the applicability of the present apparatus.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only the preferred embodiment of the present invention, for
For those of ordinary skill in the art, without having to pay creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is a kind of overall structure diagram of intravascular holder of the present invention；
Fig. 2 is a kind of concrete structure schematic diagram of the aerating and exhaust device of intravascular holder of the present invention.
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, 10 devices in order to control, and 11 be inflation pump, 12
Valve in order to control, 13 be through-hole.
Specific implementation mode
In order to be best understood from the technology of the present invention content, be provided below specific embodiment, and in conjunction with attached drawing to the present invention do into
The explanation of one step.
Referring to Fig. 1 and Fig. 2, the present invention provides a kind of intravascular holder, including contractile netted intravascular stent 1, ring
Be set around the first overlay film 2 and the second overlay film 3 of the netted intravascular stent 1, first overlay film 2 and second overlay film 3 it
Between 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 connect
It connects, second overlay film 3 is connected with the outer wall of the netted intravascular stent 1, netted intravascular stent 1 described in first overlay film 2
The aerating and exhaust device being internally provided with for supportting the big netted intravascular stent 1, the aerating and exhaust device, which is equipped with, is used for pull
Several flexible connection lines 4 of first overlay film 2 utilize the aerating and exhaust device when the present apparatus is sent to the position of leakage blood
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 and second overlay film 3 so that the bonder
Structure is gradually exposed and is gradually bonded with blood vessel, and then will completely be blocked 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
Identical movement is carried out with diastole with the contraction of blood vessel, improves the applicability of the present apparatus.
Specifically, the adhesion mechanism is the tissue glue-line 5 with mobility, meeting blood due to tissue glue-line 5 then solidifies,
In the case that first overlay film 2 and second overlay film 3 are gradually detached, 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
Coordinate 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 be covered with described second so that blood penetrates into the first overlay film 2
The position that film 3 is separated 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 being contacted 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 1 both ends of netted 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 respectively by the controller 10
Unlatching, and then to the inflation that first air bag 7, the second air bag 8 and third air bag 9 are distinguished, in operation may be used
To be strutted accordingly to the different parts of the netted intravascular stent 1 according to actual needs, 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 cuts open
Face is rectangular, passes through 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 mending-leakage
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 on the charge and discharge tracheae 6 according to the second gas
Capsule 8, third air bag 9 and the first air bag 7 are ranked sequentially, 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 so that one end of the 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 1 entirety of netted 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 tissue glue-line 5 expose, 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, to by the bell shape structure at 1 both ends of netted intravascular stent by the netted blood vessel
Holder 1 is effectively fixed.
A kind of application method of intravascular holder, S1：The charge and discharge tracheae 6 that is placed on inside netted intravascular stent 1 and
Netted intravascular stent 1 is put into internal blood vessel simultaneously；S2：The first air bag 7 on charge and discharge tracheae 6 is aligned netted intravascular stent 1
One end opens the control valve 12 between the first air bag 7 and charge and discharge tracheae 6 by controller 10, makes inflation pump 11 to the first gas
Capsule 7 is inflated, and then controlling inflation pump 11 by controller 10 deflates to the first air bag 7, then passes through controller
10 close the control valve 12 between the first air bag 7 and charge and discharge tracheae 6；S3：Second air bag 8 is pushed into netted intravascular stent 1
Middle part is opened the control valve 12 between the second air bag 8 and charge and discharge tracheae 6 of inflation pump pair by controller 10, makes inflation/deflation
11 pair of second air bag 8 of pump is inflated, and is propped up the middle part of netted intravascular stent 1 by the second air bag 8, keeps the first overlay film 2 tight
It is attached on blood vessel, at the same time, pull charge and discharge tracheae 6 makes flexible connection line 4 that the first overlay film 2 be driven to move and exposes group
Glue-line 5 is knitted, tissue glue-line 5 is made to be bonded together with blood vessel, inflation pump 11 is then controlled to second by controller 10
Air bag 8 is deflated；S4：After the first overlay film 2 is detached with netted intravascular stent 1 completely, by the third air bag on charge and discharge tracheae 6
9 are aligned the other end of netted intravascular stent 1, pass through the control valve between the unlatching third of controller 10 air bag 9 and charge and discharge tracheae 6
12, so that inflation pump 11 is inflated third air bag 9, to allow the other end of netted intravascular stent 1 to form horn-like open
Mouthful, inflation pump 11 is then controlled by controller 10 and is deflated to third air bag 9.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of intravascular holder, 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 netted intravascular stent described in first overlay film is internally provided with for supportting the big netted blood vessel
The aerating and exhaust device of holder, 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 holder according to claim 1, which is characterized in that the adhesion mechanism is with mobility
Tissue glue-line.
3. a kind of intravascular holder 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 holder 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 holder 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 holder according to claim 5, which is characterized in that the first air bag after inflation and third gas
The section of capsule is trapezoidal, and the section of the second air bag after inflation is rectangular.
7. a kind of intravascular holder 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 holder according to claim 5, which is characterized in that first air bag, the second air bag and
Third air bag being ranked sequentially according to the second air bag, third air bag and the first air bag on the charge and discharge tracheae, second gas
Capsule is adjacent with the inflation pump.
9. a kind of intravascular holder 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.
10. a kind of application method of intravascular holder, which is characterized in that
S1：The charge and discharge tracheae and netted intravascular stent that are placed on inside netted intravascular stent while being put into internal blood vessel；
S2：The first air bag on charge and discharge tracheae is aligned to one end of netted intravascular stent, by controller open the first air bag and
Control valve between charge and discharge tracheae makes the first air bag of inflation pump pair be inflated, then controls inflation pump by controller
It deflates to the first air bag, the control valve between the first air bag and charge and discharge tracheae is then closed by controller；
S3：The second air bag of inflation pump pair is opened at the middle part that second air bag is pushed to netted intravascular stent by controller
Control valve between charge and discharge tracheae makes the second air bag of inflation pump pair be inflated, by the second air bag by netted blood vessel branch
It is propped up in the middle part of frame, the first overlay film is made to be tightly attached on blood vessel, at the same time, pull charge and discharge tracheae makes flexible connection tape
Dynamic first overlay film moves and exposes tissue glue-line, and tissue glue-line is made to be bonded together with blood vessel；
S4：After the first overlay film is detached with netted intravascular stent completely, the third air bag on charge and discharge tracheae is aligned netted blood vessel
The other end of holder opens the control valve between third air bag and charge and discharge tracheae by controller, makes inflation pump to third gas
Capsule is inflated, and to allow the other end of netted intravascular stent to form horn-like opening, then controls charge and discharge by controller
Air pump deflates to third air bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810545526.6A CN108670498A (en) | 2018-05-25 | 2018-05-25 | Intravascular stent and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810545526.6A CN108670498A (en) | 2018-05-25 | 2018-05-25 | Intravascular stent and using method thereof |
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| CN108670498A true CN108670498A (en) | 2018-10-19 |
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ID=63809176
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| CN201810545526.6A Pending CN108670498A (en) | 2018-05-25 | 2018-05-25 | Intravascular stent and using method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113119020A (en) * | 2019-12-30 | 2021-07-16 | 先健科技(深圳)有限公司 | Covered stent assembling device and covered stent assembling method |
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