CN108670498B - Intravascular stent and application method thereof - Google Patents
Intravascular stent and application method thereof Download PDFInfo
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- CN108670498B CN108670498B CN201810545526.6A CN201810545526A CN108670498B CN 108670498 B CN108670498 B CN 108670498B CN 201810545526 A CN201810545526 A CN 201810545526A CN 108670498 B CN108670498 B CN 108670498B
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- inflation
- tectorial membrane
- deflation
- reticular
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- 238000000034 method Methods 0.000 title description 7
- 230000002792 vascular Effects 0.000 claims abstract description 64
- 210000002489 tectorial membrane Anatomy 0.000 claims abstract description 63
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 239000003106 tissue adhesive Substances 0.000 claims description 17
- 210000004204 blood vessel Anatomy 0.000 abstract description 40
- 239000008280 blood Substances 0.000 abstract description 17
- 210000004369 blood Anatomy 0.000 abstract description 17
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 description 21
- 239000010410 layer Substances 0.000 description 10
- 239000012528 membrane Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 230000010062 adhesion mechanism Effects 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 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
- 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
- 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)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses an intravascular stent, which comprises a contractible reticular vascular stent, a first tectorial membrane and a second tectorial membrane which are arranged around the reticular vascular stent, wherein an adhesive mechanism is arranged between the first tectorial membrane and the second tectorial membrane, the first tectorial membrane is arranged on the periphery of the second tectorial membrane and is in brittle connection with the second tectorial membrane, the second tectorial membrane 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 reticular vascular stent, a plurality of flexible connecting wires for pulling the first tectorial membrane are arranged on the inflation and deflation device, the device is sent 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 a blood vessel by the inflation and deflation device, and when the first tectorial membrane and the second tectorial membrane are pulled away by the flexible connecting wires on the inflation and deflation device, the adhesive mechanism is gradually adhered with the inner wall of the blood vessel, and the reticular vascular stent can be tightly adhered to the blood vessel.
Description
Technical Field
The invention relates to a medical device, in particular to an intravascular stent.
Background
When the condition of blood leakage in blood vessels occurs, blood vessels can shrink gradually to reduce blood loss, and at the moment, in order to leak the blood leakage position, the inner support is required to be placed in the blood vessels, so that the blood leakage position of the blood vessels is blocked, after the blood leakage condition stops, the blood vessels can be gradually relaxed to an original state, so that the diameters of the support and the inner wall of the blood vessels are different, the support is separated from the inner wall of the blood vessels and is caused to be randomly shifted in the blood vessels, the blood leakage position of the blood vessels is caused to be continuously leaked due to the movement of the support, and the existing support and the inner wall are not tight enough, so that the support is extremely easy to shift too much, and the position of the blood vessels of a human body is blocked and damaged.
Disclosure of Invention
The invention aims to solve the problems that the stent can be rapidly and tightly combined with the blood leakage position of a blood vessel to stop leakage and can relax along with the relaxation of the blood vessel, and the stent for the blood vessel can avoid serious displacement of the stent and the inner wall of the blood vessel.
The invention provides an intravascular stent, which comprises a contractible reticular vascular stent, a first tectorial membrane and a second tectorial membrane, wherein the first tectorial membrane and the second tectorial membrane are arranged around the reticular vascular stent, an adhesion mechanism is arranged between the first tectorial membrane and the second tectorial membrane, the first tectorial membrane is arranged on the periphery of the second tectorial membrane and is in brittle connection with the second tectorial membrane, the second tectorial membrane 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 reticular vascular stent, and a plurality of flexible connecting wires for pulling the first tectorial membrane are arranged on the inflation and deflation device.
Preferably, the adhesion mechanism is a tissue glue layer with fluidity.
Preferably, the cross section of the first coating is concave, and the cross section of the second coating is L-shaped.
Preferably, both ends of the reticular vascular stent are in a horn mouth shape.
Preferably, the inflation and deflation device comprises an inflation and deflation pipe, a first air bag, a second air bag, a third air bag, a controller and an inflation and deflation pump, wherein the inflation and deflation pump is communicated with the inflation and deflation pipe, a plurality of control valves are arranged on the inflation and deflation pipe, the inflation and deflation pipe is respectively communicated with the first air bag, the second air bag and the third air bag through the plurality of control valves, the flexible connecting line is connected with the inflation and deflation pipe, and the controller is used for controlling inflation and deflation of the inflation and deflation pump and opening and closing of the control valves.
Preferably, the cross section of the first air bag and the third air bag after being inflated is trapezoid, and the cross section of the second air bag after being inflated is rectangular.
Preferably, the first air bag, the second air bag and the third air bag are all provided with a plurality of transverse through holes.
Preferably, the first air bag, the second air bag and the third air bag are arranged on the inflation and deflation pipe in sequence, and the second air bag is adjacent to the inflation and deflation pump.
Preferably, the distance between the first balloon and the second balloon is equal to the length of the mesh vascular stent.
A method for using a stent for intravascular use,
S1: placing the inflation and deflation pipe arranged in the reticular vascular stent and the reticular vascular stent into the blood vessel simultaneously;
S2: aligning a first air bag on an air charging and discharging pipe with one end of a reticular vascular stent, opening a control valve between the first air bag and the air charging and discharging pipe through a controller to enable an air charging and discharging pump to charge air to the first air bag, controlling the air charging and discharging pump to discharge air to the first air bag through the controller, and closing the control valve between the first air bag and the air charging and discharging pipe through the controller;
S3: pushing the second air bag to the middle part of the reticular vascular stent, opening a control valve between the second air bag of the inflating and deflating pump pair and the inflating and deflating pipe through the controller, inflating the second air bag by the inflating and deflating pump, supporting the middle part of the reticular vascular stent by the second air bag, enabling the first tectorial membrane to be clung to the inner wall of the blood vessel, and simultaneously, pulling the inflating and deflating pipe, enabling the flexible connecting wire to drive the first tectorial membrane to move and expose the tissue adhesive layer, and enabling the tissue adhesive layer to be adhered with the inner wall of the blood vessel;
S4: after the first tectorial membrane is completely separated from the reticular vascular stent, a third air bag on the air charging and discharging pipe is aligned with the other end of the reticular vascular stent, a control valve between the third air bag and the air charging and discharging pipe is opened through a controller, so that the air charging and discharging pump charges the third air bag, the other end of the reticular vascular stent forms a horn-shaped opening, and then the air charging and discharging pump is controlled by the controller to discharge air to the third air bag.
The invention has the beneficial effects that:
According to the intravascular stent, when the intravascular stent is sent to a blood leakage position, the reticular intravascular stent is gradually expanded from one end to the other end and is contacted with the inner wall of a blood vessel by utilizing the inflation and deflation device, meanwhile, the first tectorial membrane, the bonding mechanism, the second tectorial membrane and the reticular intravascular stent are matched, and when the first tectorial membrane and the second tectorial membrane are gradually separated by the flexible connecting wire on the inflation and deflation device, the bonding mechanism is gradually exposed and gradually bonded with the inner wall of the blood vessel, so that the blood leakage position is completely blocked, the bonding effect and the plugging effect are better, the displacement condition of the reticular intravascular stent caused by the recovery of the blood vessel is avoided, the same movement can be carried out along with the contraction and the relaxation of the blood vessel, and the applicability of the intravascular stent is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only preferred embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing the overall structure of an intravascular stent according to the present invention;
Fig. 2 is a schematic diagram showing a specific structure of an inflation/deflation device of an intravascular stent according to the present invention.
In the figure, 1 is a reticular vascular stent, 2 is a first tectorial membrane, 3 is a second tectorial membrane, 4 is a flexible connecting line, 5 is a tissue adhesive layer, 6 is an inflation and deflation pipe, 7 is a first air bag, 8 is a second air bag, 9 is a third air bag, 10 is a controller, 11 is an inflation and deflation pump, 12 is a control valve, and 13 is a through hole.
Detailed Description
For a better understanding of the technical content of the present invention, specific examples are provided below and the present invention is further described with reference to the accompanying drawings.
Referring to fig. 1 and 2, the invention provides an intravascular stent, comprising a contractile reticular vascular stent 1, a first covered membrane 2 and a second covered membrane 3 which are circumferentially arranged on the reticular vascular stent 1, wherein an adhesive mechanism is arranged between the first covered membrane 2 and the second covered membrane 3, the first covered membrane 2 is arranged on the periphery of the second covered membrane 3 and is in brittle connection with the second covered membrane 3, the second covered membrane 3 is connected with the outer wall of the reticular vascular stent 1, an air charging and discharging device for expanding the reticular vascular stent 1 is arranged in the reticular vascular stent 1 of the first covered membrane 2, a plurality of flexible connecting wires 4 for drawing the first covered membrane 2 are arranged on the air charging and discharging device, when the device is sent to a blood leakage position, by means of the inflation and deflation device, the reticular vascular stent 1 is gradually expanded from one end to the other end and is contacted with the inner wall of a blood vessel, meanwhile, through the cooperation of the first tectorial membrane 2, the bonding mechanism, the second tectorial membrane 3 and the reticular vascular stent 1, the flexible connecting wire 4 on the inflation and deflation device is used for gradually separating the first tectorial membrane 2 from the second tectorial membrane 3, so that the bonding mechanism is gradually exposed and gradually bonded with the inner wall of the blood vessel, and then the blood leakage part is completely blocked, the bonding effect and the plugging effect are better, the situation that the reticular vascular stent 1 is displaced after the blood vessel is restored to the original state is avoided, the same movement is carried out along with the contraction and the relaxation of the blood vessel, and the applicability of the device is improved.
Specifically, the adhesion mechanism is a flowable tissue adhesive layer 5, and because the tissue adhesive layer 5 solidifies when meeting blood, under the condition that the first coating 2 and the second coating 3 are gradually separated, the tissue adhesive layer 5 gradually solidifies along the separation direction of the first coating 2 and gradually adheres to the inner wall of a blood vessel, thereby improving the adhesion effect of the tissue adhesive layer 5.
Specifically, the section of first tectorial membrane 2 all is the concave shape, the section of second tectorial membrane 3 all is L shape, through the cooperation between the structure of first tectorial membrane 2 and second tectorial membrane 3, effectively avoid tissue glue film 5 seepage, first tectorial membrane 2 with be used for holding between the second tectorial membrane 3 the cavity of tissue glue film 5 is formed, when exerting certain pull dynamics, first tectorial membrane 2 with the brittle joint department of second tectorial membrane 3 can break off to make blood infiltration first tectorial membrane 2 with the position that second tectorial membrane 3 looks separates, and then make tissue glue film 5 solidify gradually and bond with the blood vessel inner wall, through the cooperation of first tectorial membrane 2 with the second tectorial membrane 3, avoid when putting into this device blood direct and tissue glue film 5 contact and lead to tissue glue film 5 to solidify in the position of keeping away from the blood leakage, thereby improved the reliability when this device is used.
Specifically, the two ends of the reticular vascular stent 1 are in a horn mouth shape, and the horn mouth shape at the two ends of the reticular vascular stent 1 enables the device to prop open the inner wall of a blood vessel to a certain extent, so that the condition that the blood pressure of a human body is high due to the small inner diameter of the blood vessel is avoided.
Specifically, the inflation and deflation device comprises an inflation and deflation pipe 6, a first airbag 7, a second airbag 8, a third airbag 9, a controller 10 and an inflation and deflation pump 11, wherein the inflation and deflation pump 11 is communicated with the inflation and deflation pipe 6, a plurality of control valves 12 are arranged on the inflation and deflation pipe 6, the inflation and deflation pipe 6 is respectively communicated with the first airbag 7, the second airbag 8 and the third airbag 9 through the plurality of control valves 12, the flexible connecting wire 4 is connected with the inflation and deflation pipe 6, the controller 10 is used for controlling the inflation and deflation of the inflation and deflation pump 11 and the opening and closing of the control valves 12, the opening of the control valves 12 is respectively controlled through the controller 10, and then to first gasbag 7, second gasbag 8 and third gasbag 9 are inflated respectively, can be according to actual need to the different positions of netted vascular support 1 are opened correspondingly in the operation in-process to make the effect is better in the bonding with the blood vessel inner wall on the netted vascular support 1 of tissue glue film 5, the operation is also comparatively simple and convenient in addition, when accomplishing the leaking stoppage process of blood vessel, only need with first gasbag 7, second gasbag 8 and third gasbag 9 are gassing respectively, and take out inflation and deflation pipe 6, thereby make flexible connecting wire 4 will first tectorial membrane 2 take out the blood vessel completely.
Specifically, the sections of the first air bag 7 and the third air bag 9 after inflation are trapezoid, the section of the second air bag 8 after inflation is rectangular, and the two ends of the reticular vascular stent 1 can be easily shaped into a horn mouth through the structures of the first air bag 7 and the third air bag 9 after inflation, and the operation is simple.
Specifically, all be equipped with a plurality of horizontal through-holes 13 on first gasbag 7, second gasbag 8, the third gasbag 9, because first gasbag 7, second gasbag 8, the third gasbag 9 can block up when inflating the inside of netted vascular support 1 to lead to the blood circulation not smooth, and through-hole 13 can avoid when carrying out the damage that the blood circulation that leaks the in-process caused not smooth to the human body caused, improves the security when this device uses.
Specifically, the first air bag 7, the second air bag 8 and the third air bag 9 are arranged on the inflation and deflation pipe 6 according to the sequence of the second air bag 8, the third air bag 9 and the first air bag 7, the second air bag 8 is adjacent to the inflation and deflation pump 11, through the relation of the arrangement positions of the first air bag 7, the second air bag 8 and the third air bag 9, the distance between the first air bag 7 and the third air bag 9 is equal to the length of the reticular vascular stent 1, when the actual operation is carried out, the first air bag 7 is inflated firstly, so that one end of the reticular vascular stent 1 far away from the inflation and deflation pump 11 is propped up, the reticular vascular stent 1 is clamped at the position of blood leakage in a blood vessel, the reticular vascular stent 1 is prevented from sliding in the blood vessel, then the second air bag 8 is pushed to the middle part of the reticular vascular stent 1, the reticular vascular stent 1 is integrally propped up, the inflation pipe 6 is pulled, the first air bag 7 and the second air bag 9 are further separated, the first vascular stent 2 and the second vascular stent 3 are further separated, so that the reticular vascular stent 5 is completely propped up, and the other end of the reticular vascular stent 1 is completely propped up, and the reticular vascular stent 1 is completely separated from the other end of the reticular vascular stent 1, and the adhesive layer 1 is completely and the vascular stent 1 is completely propped up by the second vascular stent 1, and the adhesive layer is completely and the two vascular stent 1 is stretched up by the pressure.
A method for using a stent for intravascular use comprises the following steps of S1: the inflation and deflation pipe 6 arranged inside the reticular vascular stent 1 and the reticular vascular stent 1 are simultaneously arranged inside the blood vessel; s2: aligning a first air bag 7 on an air charging and discharging pipe 6 with one end of a reticular vascular stent 1, opening a control valve 12 between the first air bag 7 and the air charging and discharging pipe 6 through a controller 10, enabling an air charging and discharging pump 11 to charge air of the first air bag 7, controlling the air charging and discharging pump 11 to discharge air of the first air bag 7 through the controller 10, and closing the control valve 12 between the first air bag 7 and the air charging and discharging pipe 6 through the controller 10; s3: the second air bag 8 is pushed to the middle part of the netty intravascular stent 1, a control valve 12 between the second air bag 8 and an air charging and discharging pipe 6 of an air charging and discharging pump pair is opened through a controller 10, the air charging and discharging pump 11 charges the second air bag 8, the middle part of the netty intravascular stent 1 is supported through the second air bag 8, the first tectorial membrane 2 is tightly attached to the inner wall of a blood vessel, meanwhile, the air charging and discharging pipe 6 is pulled, the flexible connecting wire 4 drives the first tectorial membrane 2 to move and expose the tissue adhesive layer 5, the tissue adhesive layer 5 and the inner wall of the blood vessel are bonded together, and then the air charging and discharging pump 11 is controlled by the controller 10 to discharge air to the second air bag 8; s4: after the first tectorial membrane 2 is completely separated from the reticular vascular stent 1, the third air bag 9 on the air inflation and deflation pipe 6 is aligned with the other end of the reticular vascular stent 1, a control valve 12 between the third air bag 9 and the air inflation and deflation pipe 6 is opened through a controller 10, the air inflation and deflation pump 11 is used for inflating the third air bag 9, so that the other end of the reticular vascular stent 1 forms a horn-shaped opening, and then the controller 10 is used for controlling the air inflation and deflation pump 11 to deflate the third air bag 9.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. The utility model provides a support for endovascular use, its characterized in that includes collapsible netted vascular support, encircles locates netted vascular support's first tectorial membrane and second tectorial membrane, first tectorial membrane with be equipped with bonding mechanism between the second tectorial membrane, first tectorial membrane is located the periphery of second tectorial membrane and with the second tectorial membrane brittle connection, the second tectorial membrane with netted vascular support's outer wall links to each other, first tectorial membrane the inside of netted vascular support is equipped with and is used for enlarging netted vascular support fills gassing device, it is equipped with a plurality of flexible connecting lines that are used for the pull of netted vascular support to fill gassing device first tectorial membrane, the section of first tectorial membrane is the character of Chinese character 'ao', the section of second tectorial membrane is L shape, bonding mechanism is the tissue glue film that has fluidity.
2. An intravascular stent according to claim 1, wherein the ends of the reticulated stent are flared.
3. The intravascular stent according to claim 1, wherein the inflation and deflation device comprises an inflation and deflation pipe, a first balloon, a second balloon, a third balloon, a controller and an inflation and deflation pump, the inflation and deflation pump is communicated with the inflation and deflation pipe, a plurality of control valves are arranged on the inflation and deflation pipe, the inflation and deflation pipe is respectively communicated with the first balloon, the second balloon and the third balloon through the plurality of control valves, the flexible connecting wire is connected with the inflation and deflation pipe, and the controller is used for controlling inflation and deflation of the inflation and deflation pump and opening and closing of the control valves.
4. An endovascular stent as defined in claim 3, wherein the inflated first balloon and third balloon have a trapezoidal cross-section and the inflated second balloon has a rectangular cross-section.
5. The endovascular stent of claim 3, wherein the first balloon, the second balloon and the third balloon are each provided with a plurality of transverse openings.
6. An endovascular stent as defined in claim 3, wherein the first balloon, the second balloon and the third balloon are arranged in the order of the second balloon, the third balloon and the first balloon on the inflation/deflation tube, the second balloon being adjacent to the inflation/deflation pump.
7. An endovascular stent as defined in claim 3, wherein the distance between the first balloon and the second balloon is equal to the length of the reticulated stent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810545526.6A CN108670498B (en) | 2018-05-25 | 2018-05-25 | Intravascular stent and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810545526.6A CN108670498B (en) | 2018-05-25 | 2018-05-25 | Intravascular stent and application method thereof |
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| CN108670498A CN108670498A (en) | 2018-10-19 |
| CN108670498B true CN108670498B (en) | 2024-08-27 |
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| CN201810545526.6A Active CN108670498B (en) | 2018-05-25 | 2018-05-25 | Intravascular stent and application method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113119020B (en) * | 2019-12-30 | 2023-01-03 | 先健科技(深圳)有限公司 | Covered stent assembling device and covered stent assembling method |
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|---|---|---|---|---|
| CN104491934A (en) * | 2014-12-25 | 2015-04-08 | 东莞颠覆产品设计有限公司 | An expandable cardiovascular stent with a collagen coating |
| CN107982573A (en) * | 2017-12-11 | 2018-05-04 | 河南亚都实业有限公司 | A kind of preparation method of the internal styptic sponge of absorbable and degradable |
| CN208838246U (en) * | 2018-05-25 | 2019-05-10 | 海口市人民医院（中南大学湘雅医学院附属海口医院） | Intravascular stent |
| CN208942494U (en) * | 2018-05-25 | 2019-06-07 | 海口市人民医院（中南大学湘雅医学院附属海口医院） | A fill gassing device for endovascular stent |
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| CN108670498A (en) | 2018-10-19 |
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