CN107303209B - With circumference to slot can be with curved tubular intravascular stent - Google Patents
With circumference to slot can be with curved tubular intravascular stent Download PDFInfo
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- CN107303209B CN107303209B CN201610257923.4A CN201610257923A CN107303209B CN 107303209 B CN107303209 B CN 107303209B CN 201610257923 A CN201610257923 A CN 201610257923A CN 107303209 B CN107303209 B CN 107303209B
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- 210000003205 muscle Anatomy 0.000 claims abstract description 5
- 239000013013 elastic material Substances 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 23
- 239000000835 fiber Substances 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 210000004204 blood vessel Anatomy 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 239000007943 implant Substances 0.000 claims description 5
- 230000002950 deficient Effects 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000012783 reinforcing fiber Substances 0.000 claims description 3
- 238000006467 substitution reaction Methods 0.000 claims description 3
- 230000002792 vascular Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 238000002513 implantation Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 208000024172 Cardiovascular disease Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/844—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents folded prior to deployment
-
- 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
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes
-
- 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
-
- 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
-
- 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
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
Landscapes
- 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)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
Some slots (A2) is cut open in the direction of the circumferential section of a thin-wall circular tube by elastic material production, round tube (A) is cut into one section of bracket annulus A1 for connecing one section, each circumference slot is made of two symmetrical owe π slots shorter than π radian, this is 180 ° of a pair of of mutual deviation and stitches to vertex cut, it is not cut off in this pair of two intersection to vertex cut seam, but two dowels (A3) are formd, two adjacent annulus are connected muscle and connect；The dowel of adjacent slot, which is based upon, to be rotated by 90 ° on position, so, which can be bent in any direction of length；A disconnection mouth (A4) is cut on each elastic support annulus (A1), bracket is wound into the same helical form of clock spring clockwork spring, it is inserted in teleflex (C) after reducing overall diameter, when operation, after bracket is sent to predetermined position, its teleflex (C) is exited, bracket itself has elastic force, can flick into circular tube shaped.
Description
Technical field
Invention in terms of the invention belongs to treat the intravascular stent in cardiovascular disease field.
Background technique
Cardiovascular disease has become the first big killer of human health, and intravascular stent is the important for the treatment of cardiovascular disease
One of method, however, because the valuableness of support product and the valuableness of surgery cost, and the wind for thin vessels laying bracket
Danger, so that this therapeutic scheme is abandoned in many patient's selections.So research and develop low expense intravascular stent and easy operation side
Method is a kind of research for having very much social value and economic value.
Current intravascular stent is a kind of netted intravascular stent, and the accuracy of manufacture requires height, manufacture difficulty big, at high cost,
And it can only be made into short intravascular stent, if necessary to length, several brackets have to be put, so surgery cost is very big more.
Summary of the invention
A kind of new intravascular stent is provided, the purpose is to: structure is simple, manufacture difficulty is small (low-cost)；It can be made
4-5 times of existing netted intravascular stent length (without placing multiple brackets)；It can be bent and (easily propagate through curved blood vessel and be placed in
Curved blood vessel)；(strutting diameter/contracted diameter) shrinkage ratio is big, (easily propagating through minute blood vessel)；
It is a kind of with circumference to slot can be with curved tubular intravascular stent, abbreviation AS bracket, it is characterized in that: having one
Vascular opening, the diameter of the round tube can be equal to the intravascular of bracket to be implanted by the intensity of root thin-wall circular tube, the round tube
Diameter cuts open some slots along the direction of the circumferential section of the round tube on tube wall, and round tube is cut into one section of bracket for connecing one section
Annulus, each circumference slot is made of two symmetrical owe π slots shorter than π radian, in same circle slot
Two deficient π slots each other stitch vertex cut, are 180 ° of slots of a pair of of mutual deviation, this pair of two intersection to vertex cut seam not
It cuts off, but forms two dowel A3, this two dowel angles are referred to as a pair of to top dowel at a distance of 180 °, adjacent
Two annulus be connected muscle connect；The dowel of adjacent slot is based upon on 20 ° to 90 ° positions of rotation, so, it should
Round tube can be bent in any direction of length；
Operation consent needs to carry out AS bracket to compress the processing of overall diameter, and the cross-wise direction of AS bracket is wound or bent,
Reduce AS stenter to implant before overall diameter, be inserted in a teleflex, in favor of facilitate enter blood vessel, when AS bracket in place after, will
Its teleflex exits, and recycles the elastic force of AS bracket itself or AS bracket is strutted into tubular with bracket dilator, complete
Stenter to implant；
A piece AS bracket made by plastic material, bracket annulus are not turned off mouth on annulus at plasticity bracket annulus,
It is the O-shaped AS bracket of a plasticity, referred to as AS2 type bracket, a fluid pressure type dilator is put in the inside, and strutting section is plasticity branch
Frame annulusaAnd dilatora, become flat-shaped section after bracket annulus and dilator are flattened and flat-shaped section, both ends do not flattened,
So that bracket restores round, then flat-shaped section and flat-shaped section are wound into involute-shaped cross section and are then inserted in teleflex
In, become section be involute shape bracket and dilator, when bracket in place after, teleflex is exited, to fluid pressure type dilator
Injection pressure liquid, AS2 type bracket can be softened.
Further improved, the dowel of adjacent slot is based upon on the position being rotated by 90 °.
Further improved, an AS bracket made by elastic material, bracket annulus is at elastic support annulus, every
A disconnection mouth is cut on a elastic support annulus, AS1 type can be become in any position other than dowel by disconnecting mouth
AS1 type bracket is wound into the same helical form of clock spring clockwork spring by bracketa, overall diameter is reduced, teleflex is then inserted in
In, when operation, after bracket is sent to predetermined position, its teleflex is exited, AS1 type bracket itself has elastic force, can flick
At circular tube shaped；In addition, a bracket dilator, helps AS1 type bracket to strut into tubular.
It is further improved, have fluid pressure type dilator B that bracket is helped to strut, one with AS bracket is onesize and shape
The bellows dilator of shape, the cross sectional shape after using high-intensitive fiber reinforcement intensity, dilator to strut as automobile tire
It is circle, becomes flat-shaped section, then the involute shape become after winding after flattening, in the AS1 type bracket after being placed in winding, such as
Fruit bracket flicks insufficient, just to fluid pressure type dilator injection pressure liquid, bracket is helped to strut, axially force fiber and circumference to
Reinforcing fibre is the axial and circumferential fiber for enhancing hydraulic dilator intensity, can also use oblique reinforcing fiber.
It is further improved, there are a kind of mechanical dilator, an axis, multiple umbrellas manufactured above strut body, work as bracket
After in place, teleflex is exited, AS1 type bracket can automatically spring open, if flicking insufficient, turns on these umbrellas and struts body,
Bracket is helped to strut.
Further improved, an AS2 type bracket is bent into multi-corner star-shape, and a fluid pressure type dilator is put in the inside, including
The dilator of evolvent type compression and the dilator of star compression.
It is further improved, by the material substitution of elastic support annulus and dowel in AS1 type bracket at spring wire, welding
Get up, becomes spring wire form AS3 type bracket.
Detailed description of the invention
In attached drawing, principal mark number is identical, and subscript is different, and expression is with the same device, such as: A is that AS1 type bracket is whole, Aa
It is the figure of A after the coiling；B is fluid pressure type dilator, BaIt is the cross sectional shape after B is strutted, BbIt is the cross sectional shape after B is flattened,
BcIt is the cross sectional shape after B is flattened and wound；
Principal mark number is identical, behind number it is different, expression is with the different component in the same device, such as: such as: A is AS1 type
Bracket is whole, and A1 is a ring in A, and A2 is a deficient π slot in A, and A3 is a dowel in A, and A4 is one in A
A disconnection mouth；
Fig. 1, self-supporting open type AS bracket AS1 type bracket, alternating expression disconnect mouth
It include: AS1 type bracket entirety A；Bracket annulus A1；Owe π slot A2；Dowel A3；Alternating expression disconnects mouth A4；
Fig. 1 .1, self-supporting open type AS bracket AS1 type bracket, I-shaped disconnect mouth
It include: that I-shaped disconnects mouth A4；Other symbols are identical as Fig. 1.
Sectional view after Fig. 1 .2, AS1 type bracket winding
It include: bracket cross section Aa, AS1 type bracket is wound into the same helical form of clock spring clockwork spring or involute shape is cut
Face；Bracket dilator B；Teleflex C.
Fig. 2, fluid pressure type dilator B
Include: one with AS bracket is onesize and bellows the dilator b, B of shape are the entirety of fluid pressure type dilator；Axis
To forcing fiber B1；Circumference is to reinforcing fibre B2；The bad picture of oblique reinforcing fiber can also be used, so not drawing.
Fig. 2 .1, cross-sectional views B when fluid pressure type dilator strutsa
It include: cross-sectional views B when fluid pressure type dilator strutsa, this is an enlarged drawing, it is exactly the sectional view of Fig. 2.
Fig. 2 .2, cross-sectional views B after fluid pressure type dilator flattensb
It include: cross-sectional views B after fluid pressure type dilator flattensb。
Fig. 2 .3, fluid pressure type dilator flatten and wind cross-sectional views Bc
It include: that fluid pressure type dilator flattens and winds cross-sectional views Bc。
Fig. 3, mechanical dilator D
It include: mechanical dilator entirety D；Umbrella frame D1；Umbrella axis D2；Connecting rod D2；Umbrella axis D3；Umbrella edge active node
D4；Umbrella axis active node D5.
Fig. 4, AS2 type bracket E
It include: AS2 type bracket entirety E.
Fig. 4 .1, AS2 type bracket E and the distracted sectional view of dilator B
It include: that AS2 type bracket struts sectional view Ea；Dilator struts cross-sectional views Ba。
The sectional view that Fig. 4 .2, AS2 type bracket E and dilator B are flattened
It include: that AS2 type bracket flattens sectional view Eb；Dilator flattens cross-sectional views Bb。
Fig. 4 .3, AS2 type bracket E and dilator B are flattened and are wound sectional view
It include: that AS2 type bracket flattens and winds sectional view Ec；Dilator flattens and winds cross-sectional views Bc；Teleflex C.
Fig. 4 .4, polygonal star aggregation AS2 type bracket E and takeup type dilator B-section figure
It include: that AS2 type bracket is compressed into polygonal planetary sectional view Ed；Dilator flattens and winds cross-sectional views Bc。
Fig. 4 .5, polygonal star aggregation AS2 type bracket E and polygonal star-like dilator B-section figure
It include: that AS2 type bracket is compressed into polygonal planetary sectional view Ed；It is compressed into polygonal planetary dilator cross-sectional views Bd。
Specific embodiment
Full name of the invention be " with circumference to slot can be with curved tubular intravascular stent " hereinafter referred to as Ai Si
Bracket or AS bracket, the basic principle is that: have a thin-wall circular tube, the intensity of the round tube can vascular opening, the round tube
The vessel diameter that diameter is equal to bracket to be implanted is cut open on tube wall along the direction of the circumferential section of the round tube
Round tube A is cut into the annulus that one section connects one section and is known as bracket annulus A1 by slot A2, these slots A2 is not 360 ° of slot, often
A circumference slot is made of two symmetrical slots shorter than π radian, every abbreviation " owing π slot ", in same circle
Two deficient π slots in slot " stitch vertex cut " each other, are the slots of 180 ° of a pair of of mutual deviation, in this pair of two to vertex cut seam
Intersection is not cut off, but forms two dowel A3, this two dowel angles are at a distance of 180 °, and referred to as a pair is to top
Dowel A3, two adjacent annulus are connected muscle and connect；The dowel of adjacent slot is based upon 20 ° to 90 ° of rotation
On position, it is proposed that establish on the position being rotated by 90 °, such as: a pair of of dowel of n-th of annulus in 0 ° and 180 ° of position,
So, a pair of of dowel of (n+1)th annulus is just in 90 ° and 270 ° of position, and a pair of of dowel of the n-th+2 annulus is again at 0 °
With 180 ° of position, so, it is exactly AS branch which can be bent in any direction of length, which is referred to as AS round tube A
Frame A,
Operation consent needs to carry out AS bracket to compress the processing of overall diameter, and the cross-wise direction of AS bracket is wound or bent,
Reduce AS stenter to implant before overall diameter, be inserted in a teleflex, in favor of facilitate enter blood vessel, when AS bracket in place after, will
Its teleflex exits, and recycles the elastic force of AS bracket itself or AS bracket is strutted into tubular with bracket dilator, complete
Stenter to implant.
Embodiment 1, self-supporting open type AS bracket AS1 type bracket
A piece AS bracket made by elastic material, bracket annulus is at elastic support annulus, in each elastic support circle
The A4 that opens a gap is cut on ring A1, for annulus by the O-shaped c-type for being broken into opening being closed, also known as notch A4 is to disconnect mouth, is disconnected
Mouth A4 can be in any position other than dowel A3, and the alternating expression that can be in Fig. 1 disconnects mouth A4, is also possible to figure
I-shaped in 1.1 disconnects mouth A5, because all annulus have disconnection mouth, then, the O-shaped AS round tube of closure has been broken into
The AS round tube of opening, referred to as AS1 type bracket see section towards axis direction, and AS1 type bracket can be wound into clock spring clockwork spring
The same helical form Aa, Fig. 1 .2 or involute shape reduce overall diameter, be then inserted in teleflex C, when operation, branch
After frame is sent to predetermined position, its teleflex C is exited, AS1 type bracket itself has elastic force, can flick into circular tube shaped；In addition,
One bracket dilator B helps AS1 type bracket to strut into tubular, and B is an option, needs to adopt when strutting incomplete
With.
Embodiment 2, fluid pressure type dilator B
One with AS bracket is onesize and the bellows dilator b of shape, i.e., entire dilator, Fig. 2, as automobile tire one
For sample using high-intensitive fiber reinforcement intensity, the cross sectional shape after dilator B is strutted is round Ba, Fig. 2 .1, as figure after flattening
2.2 flat-shaped section Bb, then become the involute shape B of Fig. 2 .3 after windingc, it is placed in the AS1 type bracket in Fig. 1 .2 after winding
In, if bracket flicks insufficient, just to fluid pressure type dilator B injection pressure liquid, helps bracket to strut, axially force fiber B1
With circumference to reinforcing fibre B2 be the axial and circumferential fiber for enhancing hydraulic dilator intensity, can also be using oblique enhancing fibre
Dimension.
Embodiment 3, mechanical dilator D
A piece axis D2, multiple umbrellas manufactured above it is the same strut body, these strut body and are known as umbrella, when bracket in place after,
Teleflex C is exited, and AS1 type bracket can automatically spring open, if flicking insufficient, turns on these umbrellas, bracket is helped to strut.
Embodiment 4, the evolvent type compression of O-shaped AS bracket E
A piece AS bracket E made by plastic material, bracket annulus are not turned off at plasticity bracket annulus on annulus
Mouthful, it is the O-shaped AS bracket of a plasticity, referred to as AS2 type bracket, a fluid pressure type dilator B is put in the inside, struts section as figure
4.1 plasticity bracket annulus EaWith dilator Ba, EaAnd BaBecome the flat-shaped section E of Fig. 4 .2 after flatteningbAnd Bb, both ends are not
It flattens, so that bracket restores round, then by flat-shaped section EbAnd BbIt is wound into involute-shaped cross section EcAnd Bc, then it is inserted in soft
In cannula C, become section be Fig. 4 .3 involute shape bracket and dilator, when bracket in place after, teleflex C is exited, to
Fluid pressure type dilator B injection pressure liquid, AS2 type bracket can be softened.
Embodiment 4.1, the polygonal planetary compression of O-shaped AS bracket E
A piece AS2 type bracket E made by plastic material, is bent into multi-corner star-shape Ed, Fig. 4 .3, the inside put one it is hydraulic
Formula dilator B, dilator Fig. 4 .4, B including evolvent type compressioncWith dilator Fig. 4 .5, B of star compressiond。
Embodiment 5, spring wire form AS bracket AS3 type bracket
By the material substitution of elastic support annulus A1 and dowel A3 in embodiment 1 at spring wire, welds, become
Spring wire form AS bracket is known as AS3 type bracket.
Claims (7)
1. it is a kind of with circumference to slot can be with curved tubular intravascular stent, abbreviation AS bracket, it is characterized in that: there is one
Vascular opening, the diameter of the round tube can be equal to the vessel diameter of bracket to be implanted by the intensity of thin-wall circular tube, the round tube,
Along the direction of the circumferential section of the round tube, some slots (A2) is cut open on tube wall, and round tube (A) is cut into one section and connects one section
Bracket annulus (A1), each circumference slot is made of two symmetrical owe π slots shorter than π radian, in same circle
Two deficient π slots in slot each other stitch vertex cut, are 180 ° of slots of a pair of of mutual deviation, in this pair of two boundary to vertex cut seam
Place is not cut off, but forms two dowels (A3), this two dowel angles are referred to as a pair of to connect to top at a distance of 180 °
It connects muscle (A3), two adjacent annulus are connected muscle and connect；The dowel of adjacent slot is based upon 20 ° to 90 ° of rotation
On position, so, which can be bent in any direction of length；
Operation consent needs to carry out AS bracket to compress the processing of overall diameter, and the cross-wise direction of AS bracket is wound or bent, is reduced
Overall diameter before AS stenter to implant is inserted in a teleflex C, in favor of facilitate enter blood vessel, when AS bracket in place after, its is soft
Casing exits, and recycles the elastic force of AS bracket itself or AS bracket is strutted into tubular with bracket dilator, complete bracket
Implantation；
A piece AS bracket (E) made by plastic material, bracket annulus are not turned off mouth on annulus at plasticity bracket annulus,
It is the O-shaped AS bracket of a plasticity, referred to as AS2 type bracket, a fluid pressure type dilator (B) is put in the inside, struts section as modeling
Property bracket annulus (Ea) and dilator (Ba), bracket annulus (Ea) and dilator (Ba) become flat-shaped section (E after flatteningb) and it is flat
Shape section (Bb), both ends are not flattened, so that bracket restores round, then by flat-shaped section (Eb) and flat-shaped section (Bb) winding
At involute-shaped cross section (Ec) and (Bc), be then inserted in teleflex (C), become section be involute shape bracket and dilator,
When bracket in place after, teleflex (C) is exited, to fluid pressure type dilator (B) injection pressure liquid, AS2 type bracket can be softened.
2. it is according to claim 1 it is a kind of with circumference to slot can be with curved tubular intravascular stent, into one
Step is characterized in: the dowel of adjacent slot is based upon on the position being rotated by 90 °.
3. it is according to claim 1 it is a kind of with circumference to slot can be with curved tubular intravascular stent, into one
Step is characterized in: an AS bracket made by elastic material, bracket annulus is at elastic support annulus, in each elastic support
Cut a disconnections mouth (A4) on annulus (A1), disconnection mouth (A4) can in any position other than dowel (A3), at
For AS1 type bracket, AS1 type bracket is wound into the same helical form (A of clock spring clockwork springa), overall diameter is reduced, is then covered
Enter in teleflex (C), when operation, after bracket is sent to predetermined position, its teleflex (C) is exited, AS1 type bracket itself has
Elastic force can flick into circular tube shaped；In addition, a bracket dilator (B), helps AS1 type bracket to strut into tubular, is strutting
It needs to use when not exclusively.
4. it is according to claim 3 it is a kind of with circumference to slot can be with curved tubular intravascular stent, into one
Step is characterized in: have fluid pressure type dilator (B) that bracket is helped to strut, one with AS bracket is onesize and the bellows of shape
Dilator (b), uses high-intensitive fiber reinforcement intensity as automobile tire, and the cross sectional shape after dilator (B) struts is
Circle (Ba), become flat-shaped section (B after flatteningb), then the involute shape (B become after windingc), the AS1 type after being placed in winding
In bracket, if bracket flicks insufficient, just to fluid pressure type dilator (B) injection pressure liquid, helps bracket to strut, axially force
Fiber (B1) and circumference to reinforcing fibre (B2) be the axial and circumferential fiber for enhancing hydraulic dilator intensity, can also be using oblique
To reinforcing fiber.
5. it is according to claim 3 it is a kind of with circumference to slot can be with curved tubular intravascular stent, into one
Step be characterized in: have a kind of mechanical dilator (D), an axis (D2), multiple umbrellas manufactured above strut body, when bracket in place
Afterwards, teleflex (C) is exited, AS1 type bracket can automatically spring open, if flicking insufficient, turn on these umbrellas and strut body, help
Bracket is helped to strut.
6. it is according to claim 1 it is a kind of with circumference to slot can be with curved tubular intravascular stent, into one
Step is characterized in: an AS2 type bracket (E) is bent into multi-corner star-shape (Ed), a fluid pressure type dilator (B) is put in the inside, including
Dilator (the B of evolvent type compressionc) and star compression dilator (Bd)。
7. it is according to claim 3 it is a kind of with circumference to slot can be with curved tubular intravascular stent, into one
Step is characterized in: by the material substitution of elastic support annulus (A1) and dowel (A3) in AS1 type bracket at spring wire, welding
Come, becomes spring wire form AS3 type bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610257923.4A CN107303209B (en) | 2016-04-17 | 2016-04-17 | With circumference to slot can be with curved tubular intravascular stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610257923.4A CN107303209B (en) | 2016-04-17 | 2016-04-17 | With circumference to slot can be with curved tubular intravascular stent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107303209A CN107303209A (en) | 2017-10-31 |
| CN107303209B true CN107303209B (en) | 2019-05-24 |
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| CN201610257923.4A Expired - Fee Related CN107303209B (en) | 2016-04-17 | 2016-04-17 | With circumference to slot can be with curved tubular intravascular stent |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108606861A (en) * | 2018-05-07 | 2018-10-02 | 哈尔滨工业大学 | A kind of imitative glass sponge holder and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1210021A (en) * | 1998-07-02 | 1999-03-10 | 天津大学形状记忆材料工程研究中心 | Self expansive stand |
| WO2005037138A2 (en) * | 2003-10-14 | 2005-04-28 | Peacock James C Iii | Aneurysm treatment system and method |
| CN101909545A (en) * | 2008-01-11 | 2010-12-08 | 戈尔企业控股股份有限公司 | Stent having adjacent elements connected by a flexible web |
| CN102085396A (en) * | 2009-12-02 | 2011-06-08 | 复旦大学附属肿瘤医院 | Medicine-carrying biodegradable vena cava filter and preparation method thereof |
| CN102793963A (en) * | 2011-05-23 | 2012-11-28 | 郭红 | Blood vessel expanding pipe with cut seams |
| CN206372163U (en) * | 2016-04-17 | 2017-08-04 | 郭红 | With the tubular intravascular stent that can be bent from circumference to slot |
-
2016
- 2016-04-17 CN CN201610257923.4A patent/CN107303209B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1210021A (en) * | 1998-07-02 | 1999-03-10 | 天津大学形状记忆材料工程研究中心 | Self expansive stand |
| WO2005037138A2 (en) * | 2003-10-14 | 2005-04-28 | Peacock James C Iii | Aneurysm treatment system and method |
| CN101909545A (en) * | 2008-01-11 | 2010-12-08 | 戈尔企业控股股份有限公司 | Stent having adjacent elements connected by a flexible web |
| CN102085396A (en) * | 2009-12-02 | 2011-06-08 | 复旦大学附属肿瘤医院 | Medicine-carrying biodegradable vena cava filter and preparation method thereof |
| CN102793963A (en) * | 2011-05-23 | 2012-11-28 | 郭红 | Blood vessel expanding pipe with cut seams |
| CN206372163U (en) * | 2016-04-17 | 2017-08-04 | 郭红 | With the tubular intravascular stent that can be bent from circumference to slot |
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| CN107303209A (en) | 2017-10-31 |
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