CN109199656A - A kind of intravascular stent and blood vessel dilatation element - Google Patents
A kind of intravascular stent and blood vessel dilatation element Download PDFInfo
- Publication number
- CN109199656A CN109199656A CN201811037480.3A CN201811037480A CN109199656A CN 109199656 A CN109199656 A CN 109199656A CN 201811037480 A CN201811037480 A CN 201811037480A CN 109199656 A CN109199656 A CN 109199656A
- Authority
- CN
- China
- Prior art keywords
- support body
- vessel support
- intravascular stent
- silica gel
- connecting pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0061—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof swellable
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0071—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof thermoplastic
Abstract
The present invention discloses a kind of intravascular stent, including the spiral and heated connecting pin that can become annular that circumnutated；And use the preceding vessel support body that arc is gradually become for linear type and after；The connecting pin and elliptoid frame body is constituted after deforming with vessel support body；The intravascular stent implantable intravascular difficulty is low.
Description
Technical field
The present invention relates to a kind of intravascular stent and blood vessel dilatation elements.
Background technique
Intravascular stent refers to that on the basis of the forming of lumen balloon expandable, it is narrow to reach support to be placed in inner support in lesion
Narrow occlusion section blood vessel reduces blood vessel elasticity retraction and moulding again, the purpose for keeping lumen blood flow unobstructed.Part inner support also has
The effect of pre- anti-restenosis.It is broadly divided into coronary artery bracket, cerebrovascular stent, renal artery stent, aortic stent etc..
But current intravascular stent implantation difficulty is higher, those skilled in the art wishes the implantation difficulty of intravascular stent
It can reduce, to promote success rate of operation.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of intravascular stent that implantable intravascular difficulty is low and blood vessel dilatation members
Part.
To solve the above problems, the present invention adopts the following technical scheme:
A kind of intravascular stent, circumnutated the spiral and heated connecting pin that can become annular；And it is before use
Linear type and the vessel support body that arc is gradually become after；It the connecting pin and constitutes after being deformed with vessel support body ellipse
The frame body of round shape.
Preferably, the heat distortion temperature of the connecting pin is 20-28 DEG C, deformation temperature is moderate, is not easy before implantation
It begins to deform, and after implantable intravascular, start gradually to deform since the temperature by blood is influenced connecting pin.
Preferably, the vessel support body setting in a strip shape, the vessel support body are provided with more than one, the company
Connect end in circumnutate state when vessel support body be spirally distributed, vessel support body is in a ring when the connecting pin is in annular
Array distribution good can support the tube wall of blood vessel after the deformation of vessel support body.
Preferably, the vessel support body is thermo bimetal's complex.
Preferably, the heat distortion temperature of thermo bimetal's complex is 20-25 DEG C.
Preferably, the vessel support external surface is coated with silica gel coating, by being provided with silica gel coating, both
It can prevent vessel support body from wearing, and can have elasticity with silica gel coating, the burden of blood vessel can be reduced.
Preferably, the patch plumber block for being close to vascular wall is provided on the silica gel coating, the patch plumber block
It is that integral type is arranged with silica gel coating, the arc-shaped setting of the patch plumber block can be increased and blood vessel by being provided with patch plumber block
Contact area, vessel support body can be dispersed to the pressure of blood vessel, reduce the burden of blood vessel.
Preferably, the connecting pin includes shape memory alloy strip and envelopes there are two the connecting pin settings
The layer of silica gel of shape memory alloy strip is provided with string holes, the string holes circular array distribution, the blood vessel in the layer of silica gel
The both ends of supporter are respectively positioned in layer of silica gel, and the both ends of the vessel support body are provided with connection ring, and the shape memory closes
Gold bar is arranged across connection ring, and the shape memory alloy strip is connected with vessel support body by connection ring, the shape memory
Alloy bar, connection ring and vessel support body are arranged with layer of silica gel one moulding by casting, by the way that string holes is arranged, can be convenient use
Multiple intravascular stents is stitched together use, flexibility height, while vessel support body and shape memory alloy strip by person
Connective stability is good, and vessel support body is not readily separated with shape memory alloy strip, and shape memory alloy strip uses TiNi shape
Memorial alloy item.
Preferably, thermo bimetal's complex includes active layers and passive layer, it is provided on the passive layer logical
Hole.It is provided with the insertion section to match with through-hole in the active layers, in the insertion section insertion through-hole, the insertion section and logical
Interporal lacuna cooperation, the active layers, passive layer and the setting of silica gel coating one moulding by casting, active layers and passive layer stability
It is good, since insertion section and via clearance cooperate, when the expanded by heating of insertion section can it is good will casting when infilter through-hole with
Silica gel coating between insertion section, structural stability is splendid, and active layers use nichrome, and passive layer is closed using ferronickel
Gold.
The present invention also provides a kind of blood vessel dilatation elements, include more than one above-mentioned intravascular stent, the blood vessel
Using suture connection between support frame.
The invention has the benefit that being added since connecting pin is in front of implantation by the spiral form that circumnutates
Vessel support body linear type and just gradually becomes arc using rear using preceding, so that whole initial volume is few, so as to
To facilitate in staff's implantable intravascular；It is equal due to connecting pin and with vessel support body and compared with traditional intravascular stent
Elliptoid frame body is constituted after deformation, when blood mobility is larger, the effect that blood is vortexed is bigger.And deformed frame body is formed
The formation that elliptoid Streamline Design can reduce the side effect of blood vortex and blood is avoided to be vortexed, while having and can greatly reduce
Resistance of the blood flow to frame body.
Detailed description of the invention
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, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
State diagram when Fig. 1 is a kind of use of intravascular stent of the present invention.
Fig. 2 is the schematic diagram after a kind of connecting pin of intravascular stent of the present invention circumnutates.
Fig. 3 is the sectional view after a kind of connecting pin temperature distortion of intravascular stent of the present invention.
Fig. 4 is a kind of partial structural diagram of the vessel support body of intravascular stent of the present invention.
Fig. 5 is a kind of sectional view of the vessel support body of intravascular stent of the present invention.
Fig. 6 is the top view after a kind of connecting pin temperature distortion of intravascular stent of the present invention.
In figure:
1, connecting pin；2, vessel support body；3, silica gel coating；4, plumber block is pasted；5, shape memory alloy strip；6, silica gel
Layer；7, string holes；8, connection ring；9, active layers；10, passive layer；11, insertion section.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
In embodiment, it is to be understood that term " centre ", "upper", "lower", " top ", " right side ", " left end ", " on
Side ", " back side ", " middle part ", etc. instructions orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for the description present invention, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore be not considered as limiting the invention.
In addition, the connection or fixed form between component if not otherwise specified in this embodiment, connection or
Fixed form or can be adhesively fixed to be fixed by bolt commonly used in the prior art or pin is fixed or pin shaft connection,
Or it rivets the usual manners such as fixed and be not therefore described in detail in embodiment.
Embodiment
As shown in figures 1 to 6, a kind of intravascular stent, circumnutated the spiral and heated connecting pin 1 that can become annular；
And use the preceding vessel support body 2 that arc is gradually become for linear type and after；The connecting pin 1 and with vessel support body
2 deform after constitute elliptoid frame body.
The heat distortion temperature of the connecting pin 1 is 20-28 DEG C, and deformation temperature is moderate, is not easy to begin to become before implantation
Shape, and after implantable intravascular, start gradually to deform since the temperature by blood is influenced connecting pin 1.
The vessel support body 2 setting in a strip shape, the vessel support body 2 are provided with more than one, at the connecting pin 1
In circumnutate state when vessel support body 2 be spirally distributed, the battle array in a ring of vessel support body 2 when the connecting pin 1 is in annular
Column distribution, vessel support body 2 good can support the tube wall of blood vessel after deforming.
The vessel support body 2 is thermo bimetal's complex.
The heat distortion temperature of thermo bimetal's complex is 20-25 DEG C.
2 outer surface of vessel support body is coated with silica gel coating 3, both can be to prevent by being provided with silica gel coating 3
Hemostatic tube supporter 2 is worn, and can have elasticity with silica gel coating 3, can reduce the burden of blood vessel.
The patch plumber block 4 for being close to vascular wall, the patch plumber block 4 and silica gel are provided on the silica gel coating 3
Coating 3 is integral type setting, and the arc-shaped setting of the patch plumber block 4 can be increased and blood vessel by being provided with patch plumber block 4
Contact area can disperse vessel support body 2 to the pressure of blood vessel, reduce the burden of blood vessel.
There are two the settings of connecting pin 1, and the connecting pin 1 includes that shape memory alloy strip 5 is remembered with shape is enveloped
Recall the layer of silica gel 6 of alloy bar 5, string holes 7,7 circular array of the string holes distribution, the blood vessel are provided in the layer of silica gel 6
The both ends of supporter 2 are respectively positioned in layer of silica gel 6, and the both ends of the vessel support body 2 are provided with connection ring 8, the shape note
Recall alloy bar 5 to be arranged across connection ring 8, the shape memory alloy strip 5 and vessel support body 2 are connected by connection ring 8, described
Shape memory alloy strip 5, connection ring 8 and vessel support body 2 are arranged with the integrated moulding by casting of layer of silica gel 6, by the way that string holes is arranged
7, can be convenient user and multiple intravascular stents be stitched together use, flexibility is high, at the same vessel support body 2 and shape
The connective stability of shape memory alloys item 5 is good, and vessel support body 2 is not readily separated with shape memory alloy strip 5, and shape memory closes
Gold bar uses TiNi shape memory alloy strip.
Thermo bimetal's complex includes active layers 9 and passive layer 10, is provided with through-hole (not on the passive layer 10
Diagram).The insertion section 11 to match with through-hole is provided in the active layers 9, the insertion section 11 is inserted into through-hole, described to insert
Enter portion 11 and via clearance cooperation, the active layers 9, passive layer 10 and the integrated moulding by casting setting of silica gel coating 3, active layers
9 and 10 stability of passive layer it is good, can be good when the expanded by heating of insertion section since insertion section 11 and via clearance cooperate
The silica gel coating 3 between through-hole and insertion section 11 is infiltered when by casting, structural stability is splendid, and active layers are closed using nickel chromium iron
Gold, passive layer use dilval.
The present embodiment has the beneficial effect that since connecting pin is in front of implantation by the spiral form that circumnutates, then plus
Upper vessel support body linear type and just gradually becomes arc using rear using preceding, so that whole initial volume is few, thus
It can be convenient in staff's implantable intravascular；And compared with traditional intravascular stent, due to connecting pin and with vessel support body
Elliptoid frame body is constituted after deforming, when blood mobility is larger, the effect that blood is vortexed is bigger.And deformed frame body shape
At the formation that elliptoid Streamline Design can reduce the side effect of blood vortex and blood is avoided to be vortexed, while having and can greatly drop
Low resistance of the blood flow to frame body.
The present invention also provides a kind of blood vessel dilatation elements, include more than one above-mentioned intravascular stent, the blood vessel
Using suture connection between support frame.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
The change or replacement expected without creative work, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of intravascular stent, it is characterised in that: including
Circumnutated the spiral and heated connecting pin that can become annular；And
Use the preceding vessel support body that arc is gradually become for linear type and after；
The connecting pin and elliptoid frame body is constituted after deforming with vessel support body.
2. a kind of intravascular stent according to claim 1, it is characterised in that: the heat distortion temperature of the connecting pin is 20-
28℃。
3. a kind of intravascular stent according to claim 1, it is characterised in that: the vessel support body setting in a strip shape, institute
It states vessel support body and is provided with more than one, the connecting pin is in vessel support body when circumnutating state and is spirally distributed, institute
Vessel support body circular array when connecting pin is in annular is stated to be distributed.
4. a kind of intravascular stent according to claim 3, it is characterised in that: the vessel support body is that thermo bimetal is compound
Body.
5. a kind of intravascular stent according to claim 4, it is characterised in that: the thermal deformation temperature of thermo bimetal's complex
Degree is 20-25 DEG C.
6. a kind of intravascular stent according to claim 1, it is characterised in that: the vessel support external surface is coated with silicon
Glue coating.
7. a kind of intravascular stent according to claim 1, it is characterised in that: be provided on the silica gel coating for
The patch plumber block that vascular wall is close to, the patch plumber block and silica gel coating are integral type setting, the arc-shaped setting of the patch plumber block.
8. a kind of intravascular stent according to claim 1, it is characterised in that: there are two the connecting pin settings, the company
Connecing end includes shape memory alloy strip and the layer of silica gel for enveloping shape memory alloy strip, is arranged in the layer of silica gel wired
Hole, the string holes circular array distribution, the both ends of the vessel support body are respectively positioned in layer of silica gel, the vessel support body
Both ends are provided with connection ring, and the shape memory alloy strip is arranged across connection ring, the shape memory alloy strip and blood vessel
Supporter is connected by connection ring, and the shape memory alloy strip, connection ring and vessel support body are integrally poured with layer of silica gel
Molding setting.
9. a kind of intravascular stent according to claim 6, it is characterised in that: thermo bimetal's complex includes actively
Layer and passive layer are provided with through-hole on the passive layer.The insertion section to match with through-hole is provided in the active layers, it is described
Insertion section is inserted into through-hole, and the insertion section and via clearance cooperation, the active layers, passive layer and silica gel coating integrally pour
Injection forming setting.
10. a kind of blood vessel dilatation element, it is characterised in that: include more than one blood vessel branch as claimed in claims 1-9
Frame, using suture connection between the vessel support frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811037480.3A CN109199656A (en) | 2018-09-06 | 2018-09-06 | A kind of intravascular stent and blood vessel dilatation element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811037480.3A CN109199656A (en) | 2018-09-06 | 2018-09-06 | A kind of intravascular stent and blood vessel dilatation element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109199656A true CN109199656A (en) | 2019-01-15 |
Family
ID=64987217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811037480.3A Withdrawn CN109199656A (en) | 2018-09-06 | 2018-09-06 | A kind of intravascular stent and blood vessel dilatation element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109199656A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111632255A (en) * | 2020-04-28 | 2020-09-08 | 贵州省人民医院 | Vasodilator for cardiovascular internal medicine and preparation method thereof |
| CN113413255A (en) * | 2021-08-24 | 2021-09-21 | 南通欣昌减震器有限公司 | Blood vessel supporting rubber stent |
| CN117224277A (en) * | 2023-11-10 | 2023-12-15 | 广东脉搏医疗科技有限公司 | Coronary sinus constriction device and coronary sinus constriction system |
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| EP0904737A1 (en) * | 1997-09-02 | 1999-03-31 | Sitek, Inc. | Silicon micro machined occlusion implant |
| CN2505120Y (en) * | 2001-08-20 | 2002-08-14 | 吴雄 | Egg roll type elastic support |
| US20020128702A1 (en) * | 2000-10-09 | 2002-09-12 | Wolfgang Menz | Device for supporting a surgical step in a vessel, particularly for removal and implantation of heart valves |
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| US20030153935A1 (en) * | 2000-09-04 | 2003-08-14 | Claude Mialhe | Vascular occlusion device, apparatus and method for using same |
| CN201664337U (en) * | 2010-01-29 | 2010-12-08 | 刘小勇 | Expansible centrum support frame |
| CN102245127A (en) * | 2008-10-10 | 2011-11-16 | 雷瓦医药公司 | Expandable slide and lock stent |
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| US20130178750A1 (en) * | 2011-12-23 | 2013-07-11 | Volcano Corporation | Methods and Apparatus for Regulating Blood Pressure |
| CN104434351A (en) * | 2014-12-10 | 2015-03-25 | 南京微创医学科技有限公司 | Bionic tracheal stent mounted in trachea |
| EP2939614A1 (en) * | 2014-05-01 | 2015-11-04 | Cook Medical Technologies LLC | Implantable medical device with twisted element |
| CN205054514U (en) * | 2015-10-12 | 2016-03-02 | 滕云 | Blood vessel bracket |
| CN108371572A (en) * | 2018-02-11 | 2018-08-07 | 浙江巴泰医疗科技有限公司 | A kind of screw type self-expanding stent |
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2018
- 2018-09-06 CN CN201811037480.3A patent/CN109199656A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0904737A1 (en) * | 1997-09-02 | 1999-03-31 | Sitek, Inc. | Silicon micro machined occlusion implant |
| US20030135268A1 (en) * | 2000-04-11 | 2003-07-17 | Ashvin Desai | Secure stent for maintaining a lumenal opening |
| US20030153935A1 (en) * | 2000-09-04 | 2003-08-14 | Claude Mialhe | Vascular occlusion device, apparatus and method for using same |
| US20020128702A1 (en) * | 2000-10-09 | 2002-09-12 | Wolfgang Menz | Device for supporting a surgical step in a vessel, particularly for removal and implantation of heart valves |
| CN2505120Y (en) * | 2001-08-20 | 2002-08-14 | 吴雄 | Egg roll type elastic support |
| CN102245127A (en) * | 2008-10-10 | 2011-11-16 | 雷瓦医药公司 | Expandable slide and lock stent |
| EP2451361A1 (en) * | 2009-07-10 | 2012-05-16 | Carag AG | Occluder |
| CN201664337U (en) * | 2010-01-29 | 2010-12-08 | 刘小勇 | Expansible centrum support frame |
| US20130178750A1 (en) * | 2011-12-23 | 2013-07-11 | Volcano Corporation | Methods and Apparatus for Regulating Blood Pressure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111632255A (en) * | 2020-04-28 | 2020-09-08 | 贵州省人民医院 | Vasodilator for cardiovascular internal medicine and preparation method thereof |
| CN111632255B (en) * | 2020-04-28 | 2022-04-29 | 贵州省人民医院 | Vasodilator for cardiovascular internal medicine and preparation method thereof |
| CN113413255A (en) * | 2021-08-24 | 2021-09-21 | 南通欣昌减震器有限公司 | Blood vessel supporting rubber stent |
| CN113413255B (en) * | 2021-08-24 | 2021-11-16 | 南通欣昌减震器有限公司 | Blood vessel supporting rubber stent |
| CN117224277A (en) * | 2023-11-10 | 2023-12-15 | 广东脉搏医疗科技有限公司 | Coronary sinus constriction device and coronary sinus constriction system |
| CN117224277B (en) * | 2023-11-10 | 2024-02-23 | 广东脉搏医疗科技有限公司 | Coronary sinus constriction device and coronary sinus constriction system |
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Application publication date: 20190115 |