CN201453427U - Intracranial artery support - Google Patents
Intracranial artery support Download PDFInfo
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- CN201453427U CN201453427U CN 200920109932 CN200920109932U CN201453427U CN 201453427 U CN201453427 U CN 201453427U CN 200920109932 CN200920109932 CN 200920109932 CN 200920109932 U CN200920109932 U CN 200920109932U CN 201453427 U CN201453427 U CN 201453427U
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- entocranial artery
- cell cube
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Abstract
The utility model discloses an intracranial artery support, which is formed by a plurality of sine-shaped ring unit bodies (1) and 'S-shaped' connecting bodies (2). Two adjacent unit bodies (1) are combined together through the peak of one unit body and the trough of the other unit body in a relative way. For each pair of adjacent peak and trough, the top of the peak and the bottom of the trough are connected together through one 'S-shaped' connecting body (2) to form a metal artery support of a pipe network structure. The width of the support bar of the connecting body (2) is less than or equal to the width of the support bar of the linear structure part (12) of the unit body. The peak top part or the trough bottom part of the unit body (1) is of an 'omega-shaped' bended structure (11). The width of the support bar of the bended structure (11) is less than the width of the support bar of the linear structure part (12) of the unit body. The utility model has the advantages that the flexibility is good, the radial supporting force and the support retention force are large, the intracranial artery support is suitable for the characteristics of circuitousness and tenuousness of the intracranial artery, the success rate of the combination of the support and the delivery sacculus in the clinical operation is improved, the adaptability of the intracranial support to the intracranial artery is improved and the operative risk is reduced.
Description
Technical field
This utility model relates to a kind of intravascular stent, is specifically related to a kind of entocranial artery support.
Background technology
Studies show that the cerebral blood supply atherosclerotic is narrow often to be seen at intracranial.Entocranial artery is narrow to be a kind of senile brain diseases, can cause cerebral ischemia, anoxia, infraction and causes in various degree delayed ischemic neurological deficits such as hemiplegia, aphasia, hemianopsia and local sensory disturbance etc.At present, for the narrow Therapeutic Method of entocranial artery Drug therapy, surgical operation and simple sacculus angioplasty etc. are arranged, but they all exist limitation separately, especially often curative effect is limited for serious narrow patient.Also have the people that balloon expandable intravascular stent and Drug therapy are combined, but the adaptability of intracranial vessel is had much room for improvement intravascular stent and the operation risk rate also awaits further reduction.
The support that is specifically designed to intracranial vessel now is less, also useful clinically coronary artery bracket replaces being used for the narrow plasty of entocranial artery, because the arteria coronaria tremulous pulse is more straight, (pressure when sacculus reaches predetermined diameter) higher (greater than 6 atmospheric pressure) are pressed in soft section weak point of coronary artery bracket system and name, and entocranial artery is more tortuous than arteria coronaria blood vessel, blood vessel wall is thinner, cause this therapeutic effect to make us inadequately that the people is satisfied, operating difficulty big and risk is also higher, and the entocranial artery vascular restenosis can not effectively solve (restenosis is up to 40% in the intracranial stent blood vessel).Therefore, need in the medical treatment specially and design, possess the adaptive intracranial vessel support of better compliance and clinical operation and treatment at intracranial vessel.
The utility model content
The technical problems to be solved in the utility model provides a kind of entocranial artery support, this support compliance is good, have higher radial support power and support retentivity, can improve adaptability and the clinical manipulation medium-height trestle and conveying sacculus bonded success rate of support, reduce the risk of balloon expandable intravascular stent operation the entocranial artery blood vessel.
For solving the problems of the technologies described above, this utility model adopts following technical proposals:
A kind of entocranial artery support is made up of a plurality of sinusoidal wave form annulus cell cube basic structures and serpentine connector; Its adjacent cells body makes up with the form that crest is relative with trough each other, the a pair of crest of pressing close to mutually in every interval is connected this crest summit of pressing close to mutually and trough the lowest point with trough by the serpentine connector, form the metallic blood vessel bracket of pipe network structure, it is wide that wherein the cradling piece muscle of this connector wide (the wide width that is meant the cradling piece cross section of muscle is shown in the label D of Fig. 3) is less than or equal to cell cube linear structure cradling piece muscle partly; This structure can keep lower metal coverage rate and have higher radial support power; The serpentine connector is that compliance connects, this connected mode has reduced the axial stress of linkage section, compression takes place or stretches in the serpentine connector when support carries out bending and expansion, the axial compliance of support is increased substantially, the adherent property of axial blood vessel and the vascular compliance of support have been improved, can reduce the support change out of shape, reduce damage blood vessel to the blood vessel normal physiological; The crest top section of described sinusoidal wave form cell cube or trough valley portions are divided into " Ω " shape bent angle structure, radius of curvature is little, the wide cradling piece muscle less than cell cube linear structure part of cradling piece muscle that wherein is somebody's turn to do " Ω " shape bent angle structure is wide, this structure can reduce the warpage pressure of cradling piece, the rebound degree of this part is descended, carrying out to make combining of support and conveying sacculus tightr when support is held assembling with the pressure of carrying sacculus, be difficult for taking place resilience, can improve the retentivity of support, attenuating causes the incidence rate that support comes off because of the retentivity deficiency in clinical manipulation.
Different size according to concrete clinical practice, described entocranial artery support length overall can be 8～36mm, its external diameter is 1.60～1.90mm, wall thickness is 0.08～0.10mm, described sinusoidal wave form annulus cell cube is wide (to be the distance between cell cube crest tangent line and the trough tangent line, shown in the label A of Fig. 2) be 1.00～1.30mm, its sine wave period that comprises (the one-period number refers to a complete minimum repetitive structure) number is 6～9, wherein the cradling piece muscle of linear structure part is wide is 0.09～0.11mm, the radius of curvature of " Ω " shape bent angle structure is 0.12～0.15mm, described serpentine connector length (is the spacing of adjacent annulus cell cube, shown in the label B of Fig. 2) be 0.45～0.50mm, wide (the crest tangent line of this serpentine structure and the distance between the trough tangent line are shown in the label C of Fig. 3) is 0.35～0.45mm.
The beneficial effects of the utility model are: this backbone metal is evenly distributed, and can be used as the carried stent platform and realizes that drug distribution is even, naked metal rack platform or medicine carrying metal rack platform when can be as treatment entocranial artery atherosclerotic narrow.This support can adapt to tortuous, the very thin characteristics of entocranial artery, improve the clinical manipulation medium-height trestle and carry the bonded success rate of sacculus, improve the adaptability of intracranial stent, reduce the risk of the atherosis narrow Minimally Invasive Surgery treatment of various entocranial arteries the entocranial artery blood vessel.
Description of drawings
Fig. 1 is that cylindrical shape network structure of the present utility model is launched sketch map.
Fig. 2 is the sketch map of annulus cell cube of the present utility model (1) wide (A) and serpentine connector (2) long (B).
Fig. 3 is the sketch map of serpentine connector of the present utility model (2) wide (C) and cradling piece muscle wide (D).
The specific embodiment
As shown in Figure 1, this utility model is made up of a plurality of sinusoidal wave form annulus cell cubes (1) and serpentine connector (2); Adjacent cells body (1) is with the form combination that crest is relative with trough each other, and a pair of crest of pressing close to mutually in every interval is connected this crest summit of pressing close to mutually and trough the lowest point with trough by serpentine connector (2), forms the metallic blood vessel bracket of pipe network structure; The crest top section of described sinusoidal wave form cell cube (1) or trough base section are " Ω " shape bent angle structure (11), the wide cradling piece muscle less than cell cube (1) linear structure part (12) of cradling piece muscle that wherein should " Ω " shape bent angle structure (11) is wide, and the cradling piece muscle of described connector (2) is wide, and to be less than or equal to the cradling piece muscle of cell cube (1) linear structure part (12) wide.
Different size according to concrete clinical practice, described entocranial artery support can be that length overall is that 8～36mm, external diameter are that 1.60～1.90mm, wall thickness are 0.08～0.10mm, described sinusoidal wave form annulus cell cube (1) is wide to be 1.00～1.30mm, the sine wave period number that it comprises is 6～9, wherein the cradling piece muscle of linear structure part (12) is wide is 0.09～0.11mm, the radius of curvature of " Ω " shape bent angle structure (11) is 0.12～0.15mm, and serpentine connector (2) length is 0.45～0.50mm, the wide 0.35～0.45mm of being.
The claimed content of this utility model is not limited to the scope of application of entocranial artery support, as long as be used for the treatment of the scope that the purpose of angiopathy all belongs to this utility model protection.
Claims (8)
1. entocranial artery support, it is characterized in that: form by a plurality of sinusoidal wave form annulus cell cubes (1) and serpentine connector (2), wherein adjacent cells body (1) makes up with the form that crest is relative with trough each other, the a pair of crest of pressing close to mutually in every interval is connected this crest summit of pressing close to mutually and trough the lowest point with trough by serpentine connector (2), form the metallic blood vessel bracket of pipe network structure, the crest top section of described sinusoidal wave form cell cube (1) or trough base section are " Ω " shape bent angle structure (11), the wide cradling piece muscle less than cell cube (1) linear structure part (12) of cradling piece muscle that wherein should " Ω " shape bent angle structure (11) is wide, and the cradling piece muscle of this connector (2) is wide, and to be less than or equal to the cradling piece muscle of cell cube (1) linear structure part (12) wide.
2. a kind of entocranial artery support according to claim 1 is characterized in that: described entocranial artery support length overall is that 8～36mm, external diameter are 1.60～1.90mm.
3. a kind of entocranial artery support according to claim 1 and 2 is characterized in that: described entocranial artery support wall thickness is 0.08～0.10mm.
4. a kind of entocranial artery support according to claim 1 is characterized in that: the wide 1.00～1.30mm of being of described sinusoidal wave form annulus cell cube (1), the sine wave period number that it comprises is 6～9.
5. according to claim 1,2 or 4 described a kind of entocranial artery supports, it is characterized in that: described serpentine connector (2) length is 0.45～0.50mm, the wide 0.35～0.45mm of being.
6. a kind of entocranial artery support according to claim 1 is characterized in that: the wide 0.09～0.11mm of being of cradling piece muscle of described sinusoidal wave form annulus cell cube (1) linear structure part (12).
7. according to claim 1,2,4 or 6 described a kind of entocranial artery supports, it is characterized in that: " Ω " shape bent angle structure (11) radius of curvature of described sinusoidal wave form annulus cell cube (1) crest top section or trough base section is 0.12～0.15mm.
8. a kind of entocranial artery support according to claim 1, it is characterized in that: described entocranial artery support length overall is that 8～36mm, external diameter are that 1.60～1.90mm, wall thickness are 0.08～0.10mm, described sinusoidal wave form annulus cell cube (1) is wide to be 1.00～1.30mm, the sine wave period number that it comprises is 6～9, wherein the cradling piece muscle of linear structure part (12) is wide is 0.09～0.11mm, the radius of curvature of " Ω " shape bent angle structure (11) is 0.12～0.15mm, and described serpentine connector (2) length is 0.45～0.50mm, the wide 0.35～0.45mm of being.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920109932 CN201453427U (en) | 2009-07-10 | 2009-07-10 | Intracranial artery support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920109932 CN201453427U (en) | 2009-07-10 | 2009-07-10 | Intracranial artery support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201453427U true CN201453427U (en) | 2010-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920109932 Expired - Fee Related CN201453427U (en) | 2009-07-10 | 2009-07-10 | Intracranial artery support |
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| Country | Link |
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| CN (1) | CN201453427U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101926697A (en) * | 2010-07-13 | 2010-12-29 | 北京迈迪顶峰医疗科技有限公司 | Outflow track expandable stent and conveyor thereof |
| CN108670510A (en) * | 2018-05-22 | 2018-10-19 | 淮阴工学院 | A kind of intracranial vessel holder that compliance is excellent |
| CN109077836A (en) * | 2015-12-30 | 2018-12-25 | 先健科技(深圳)有限公司 | Intraluminal stent |
| CN110251272A (en) * | 2019-06-13 | 2019-09-20 | 杜伟远 | A kind of skeleton three-dimensional cardiovascular inner supporting device of attaching |
| CN113069256A (en) * | 2021-03-26 | 2021-07-06 | 珠海通桥医疗科技有限公司 | Intracranial flexible closed loop stent |
| CN113813092A (en) * | 2021-08-25 | 2021-12-21 | 巴特勒生物科技(苏州)有限公司 | Bracket system for intracranial artery |
-
2009
- 2009-07-10 CN CN 200920109932 patent/CN201453427U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101926697A (en) * | 2010-07-13 | 2010-12-29 | 北京迈迪顶峰医疗科技有限公司 | Outflow track expandable stent and conveyor thereof |
| CN101926697B (en) * | 2010-07-13 | 2013-05-22 | 北京迈迪顶峰医疗科技有限公司 | Outflow track expandable stent and conveyor thereof |
| CN109077836A (en) * | 2015-12-30 | 2018-12-25 | 先健科技(深圳)有限公司 | Intraluminal stent |
| CN108670510A (en) * | 2018-05-22 | 2018-10-19 | 淮阴工学院 | A kind of intracranial vessel holder that compliance is excellent |
| CN108670510B (en) * | 2018-05-22 | 2020-03-27 | 淮阴工学院 | Intracranial vascular stent with excellent flexibility |
| CN110251272A (en) * | 2019-06-13 | 2019-09-20 | 杜伟远 | A kind of skeleton three-dimensional cardiovascular inner supporting device of attaching |
| CN113069256A (en) * | 2021-03-26 | 2021-07-06 | 珠海通桥医疗科技有限公司 | Intracranial flexible closed loop stent |
| CN113813092A (en) * | 2021-08-25 | 2021-12-21 | 巴特勒生物科技(苏州)有限公司 | Bracket system for intracranial artery |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Effective date of registration: 20170711 Granted publication date: 20100512 |
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| PD01 | Discharge of preservation of patent |
Date of cancellation: 20190710 Granted publication date: 20100512 |
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| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |