CN106691642B - Balloon triggering self-expanding stent - Google Patents
Balloon triggering self-expanding stent Download PDFInfo
- Publication number
- CN106691642B CN106691642B CN201611144383.5A CN201611144383A CN106691642B CN 106691642 B CN106691642 B CN 106691642B CN 201611144383 A CN201611144383 A CN 201611144383A CN 106691642 B CN106691642 B CN 106691642B
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- rotation section
- side wall
- locating piece
- fixed part
- 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.)
- Expired - Fee Related
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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
- 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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/958—Inflatable balloons for placing stents or stent-grafts
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a kind of balloon triggering self-expanding stents, including bracket shell, the bracket shell is connected and composed by multiple horizontal supports, the horizontal support includes first connecting rod, the both ends of the first connecting rod are respectively connected with turntable, the rotation section and fixed part that the turntable includes, the one side wall of rotation section is equipped with groove, the side of the groove is equipped with positioning device, the positioning device includes locating piece, the locating piece is equipped with fixed block far from the side of rotation section, it is connected between the locating piece and fixed block by pressure spring, the fixed part is far from being connected with the second connecting rod in the one side wall of first connecting rod, the rotation section is equipped with support rod far from the one side wall of fixed part, two neighboring horizontal support is connected by support rod in perpendicular.Spreading performance of the present invention is good, and good supporting force avoids the phenomenon that expandable stent is easy to happen elastical retraction, alleviates the pain of patient, improves the working efficiency of doctor.
Description
Technical field
The present invention relates to the field of medical instrument technology more particularly to a kind of balloon triggering self-expanding stents.
Background technique
With the development of science and social progress, the equipment of modernization gradually comes into people's lives, modernization
Equipment so that people's lives is become convenient, the equipment of modernization has also pushed the progress of human society.
Currently, coronary heart disease, cardiovascular and cerebrovascular disease, which have become, endangers the important of the public's especially middle-aged and the old's health
One of disease, such as the Etiological of coronary heart disease is to lead to coronary artery stenosis or occlusion due to coronary atherosclerosis in turn
So that caused by coronary flow reduction or interruption, medically, for blood vessel caused by this narrow or Occlusion
Disease, most important method are percutaneous coronary interventions, i.e. percutaneous coronary balloon expandable and stent endoprosthesis.Sacculus expands
The basic principle for opening art is to make narrow vessel enlargement by mechanical forces (sacculus extruding narrow positions).It is simple for some
Vascular lesion may it is only necessary to balloon dilatation can, but blood vessel is narrow again frequent occurrence for simple balloon dilatation
It is narrow, therefore, in recent years, the often postoperative treatment of Stent Implantation again of balloon expandable.The effect of bracket is then to make the blood vessel after increasing
Inner cavity is maintained.
Coronary artery bracket under the prior art is easy to happen elastical retraction, to in-stent restenosis occur, needs to carry out two
Secondary treatment, this brings great inconvenience to patient and doctor.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and the balloon triggering self-expanding branch proposed
Frame.
To achieve the goals above, present invention employs following technical solutions:
Balloon triggering self-expanding stent, including bracket shell, the bracket shell are connected and composed by multiple horizontal supports,
The horizontal support includes first connecting rod, and the both ends of the first connecting rod are respectively connected with turntable, and what the turntable included turns
Dynamic portion and fixed part, the area of the rotation section side wall are less than the area of fixed part side wall, the first connecting rod and rotation section
Connection, the one side wall of rotation section are equipped with groove, and the side of the groove is equipped with positioning device, and the positioning device includes positioning
Block, the locating piece match with groove, and the outer wall of the locating piece and the one side wall of rotation section are slidably connected, the locating piece
Side far from rotation section is equipped with fixed block, is connected between the locating piece and fixed block by pressure spring, the one of the fixed block
Side wall is fixedly connected with fixed part, and the fixed part is described far from being connected with the second connecting rod in the one side wall of first connecting rod
Rotation section is equipped with support rod far from the one side wall of fixed part, and two neighboring horizontal support is connected by support rod in perpendicular
It connects, the support rod is arcuate structure, and plane locating for the support rod middle is higher than horizontal plane locating for support rod both ends.
Preferably, the outer cover of the positioning device is equipped with protective shell, the bottom of the protective shell and the fixed part of turntable
Connection, and locating piece is located in protective shell.
Preferably, the first connecting rod and the second connecting rod place plane parallel.And first connecting rod and second connects
Extension bar is located at the two sides of turntable.
Preferably, the both ends of the support rod are equipped with mounting hole, are equipped with fastener, the support rod in the mounting hole
It is slidably connected with the outer wall of fastener, the both ends of the support rod pass through fastener respectively and the rotation section side wall of adjacent discs connects
It connects.
In the present invention, when bracket is sent into the lesion in lesion vessels, balloon inflation makes bracket self-expanding, the second connecting rod
Stress moves straight up, and locating piece is moved to groove side, is moved to locating piece in groove by the active force of pressure spring, rises
To position-limiting action, blood vessel is propped up, covers lesion, spreading performance is good, and good supporting force, surface area is small, avoids expandable stent
The phenomenon that being easy to happen elastical retraction alleviates the pain of patient, improves the working efficiency of doctor.
Detailed description of the invention
Fig. 1 is the partial structural diagram before balloon triggering self-expanding stent proposed by the present invention expansion；
Fig. 2 is the partial structurtes signal of the second embodiment after balloon triggering self-expanding stent proposed by the present invention expansion
Figure.
In figure: 1 first connecting rod, 2 turntables, 3 grooves, 4 fixed blocks, 5 pressure springs, 6 locating pieces, 7 second connecting rods, 8 supports
Bar.
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.
Referring to Fig.1-2, balloon triggering self-expanding stent, including bracket shell, bracket shell are connected by multiple horizontal supports
Composition is connect, horizontal support includes first connecting rod 1, and the both ends of first connecting rod 1 are respectively connected with turntable 2, the rotation that turntable 2 includes
Portion and fixed part, the area that side wall is held in rotation section are less than the area of fixed part side wall, and first connecting rod 1 is connect with rotation section, turn
The one side wall in dynamic portion is equipped with groove 3, and the side of groove 3 is equipped with positioning device, and positioning device includes locating piece 6, locating piece 6 with
Groove 3 matches, and the outer wall of locating piece 6 and the one side wall of rotation section are slidably connected, and locating piece 6 is equipped with far from the side of rotation section
Fixed block 4 is connected between locating piece 6 and fixed block 4 by pressure spring 5, and the one side wall of fixed block 4 is fixedly connected with fixed part, Gu
Determine to be connected with the second connecting rod 7 in one side wall of the portion far from first connecting rod 1, rotation section is equipped with far from the one side wall of fixed part
Support rod 8, two neighboring horizontal support is connected by support rod 8 in perpendicular, and support rod 8 is arcuate structure, in support rod 8
Between at place plane be higher than horizontal plane locating for 8 both ends of support rod, the outer cover of positioning device is equipped with protective shell, the bottom of protective shell
It is connect with the fixed part of turntable 2, and locating piece 6 is located in protective shell, 7 place plane phase of first connecting rod 1 and the second connecting rod
In parallel.And first connecting rod 1 and the second connecting rod 7 are located at the two sides of turntable 2, the both ends of support rod 8 are equipped with mounting hole,
Fastener is equipped in mounting hole, support rod 8 and the outer wall of fastener are slidably connected, and the both ends of support rod 8 pass through fastener respectively
It is connect with the rotation section side wall of adjacent discs 2, when bracket is sent into the lesion in lesion vessels, balloon inflation makes bracket from swollen
Swollen, 7 stress of the second connecting rod moves straight up, and locating piece 6 is moved to 3 side of groove, makes to position by the active force of pressure spring 5
Block 6 is moved in groove 3, plays position-limiting action, props up blood vessel, covers lesion, spreading performance is good, good supporting force, surface
Product is small, avoids the phenomenon that expandable stent is easy to happen elastical retraction, alleviates the pain of patient, improves the work effect of doctor
Rate.
Working principle: when bracket is sent into the lesion in lesion vessels, balloon inflation makes bracket self-expanding, the second connecting rod
7 stress move straight up, and locating piece 6 is moved to 3 side of groove, so that locating piece 6 is moved to groove by the active force of pressure spring 5
In 3, position-limiting action is played, props up blood vessel, covers lesion.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (4)
1. balloon triggering self-expanding stent, including bracket shell, the bracket shell is connected and composed by multiple horizontal supports,
It being characterized in that, the horizontal support includes first connecting rod (1), and one end of the first connecting rod (1) is connected with turntable (2),
The turntable (2) includes rotation section and fixed part, and the area of the rotation section side wall is less than the area of fixed part side wall, and described the
One connecting rod (1) is connect with rotation section, and the one side wall of rotation section is equipped with groove (3), and the side of the groove (3) is equipped with positioning
Device, the positioning device include locating piece (6), and the locating piece (6) matches with groove (3), outside the locating piece (6)
The one side wall of wall and rotation section is slidably connected, and the locating piece (6) is equipped with fixed block (4) far from the side of rotation section, described fixed
It being connect between position block (6) and fixed block (4) by pressure spring (5), the one side wall of the fixed block (4) is fixedly connected with fixed part,
The fixed part is connected with the second connecting rod (7) in the one side wall far from first connecting rod (1), the rotation section is far from fixed part
One side wall be equipped with support rod (8), two neighboring horizontal support passes through support rod (8) connection, the support in perpendicular
Bar (8) is arcuate structure, and plane locating for support rod (8) middle is higher than horizontal plane locating for support rod (8) both ends.
2. balloon triggering self-expanding stent according to claim 1, which is characterized in that the outer cover of the positioning device
Equipped with protective shell, the bottom of the protective shell is connect with the fixed part of turntable (2), and locating piece (6) is located in protective shell.
3. balloon triggering self-expanding stent according to claim 1, which is characterized in that the first connecting rod (1) and
Plane parallel where second connecting rod (7), and first connecting rod (1) and the second connecting rod (7) are located at the two of turntable (2)
Side.
4. balloon triggering self-expanding stent according to claim 1, which is characterized in that the both ends of the support rod (8)
It is equipped with mounting hole, is equipped with fastener in the mounting hole, the support rod (8) and the outer wall of fastener are slidably connected, described
The both ends of support rod (8) pass through fastener respectively and connect with the rotation section side wall of adjacent discs (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144383.5A CN106691642B (en) | 2016-12-13 | 2016-12-13 | Balloon triggering self-expanding stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144383.5A CN106691642B (en) | 2016-12-13 | 2016-12-13 | Balloon triggering self-expanding stent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106691642A CN106691642A (en) | 2017-05-24 |
| CN106691642B true CN106691642B (en) | 2019-04-12 |
Family
ID=58937305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611144383.5A Expired - Fee Related CN106691642B (en) | 2016-12-13 | 2016-12-13 | Balloon triggering self-expanding stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106691642B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7487579B2 (en) * | 2003-03-12 | 2009-02-10 | Boston Scientific Scimed, Inc. | Methods of making medical devices |
| US20140163664A1 (en) * | 2006-11-21 | 2014-06-12 | David S. Goldsmith | Integrated system for the ballistic and nonballistic infixion and retrieval of implants with or without drug targeting |
| WO2008076937A2 (en) * | 2006-12-15 | 2008-06-26 | Cardiomind, Inc. | Stent systems |
| US8702782B2 (en) * | 2008-10-09 | 2014-04-22 | Strait Access Technologies Holdings (Pty) Limited | Stent deployment device |
| CN201510383U (en) * | 2009-07-17 | 2010-06-23 | 李家一 | Balloon triggering self-expanding stent |
| CN203677323U (en) * | 2013-12-24 | 2014-07-02 | 江苏省华星医疗器械实业有限公司 | Two section type balloon intravascular stent |
| CN104000676B (en) * | 2014-06-16 | 2015-11-11 | 河南科技大学 | A kind of scalable inner support for esophagus |
-
2016
- 2016-12-13 CN CN201611144383.5A patent/CN106691642B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106691642A (en) | 2017-05-24 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190412 Termination date: 20191213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |