CN201055443Y - Artery medicine elution bracket - Google Patents
Artery medicine elution bracket Download PDFInfo
- Publication number
- CN201055443Y CN201055443Y CNU2007201481199U CN200720148119U CN201055443Y CN 201055443 Y CN201055443 Y CN 201055443Y CN U2007201481199 U CNU2007201481199 U CN U2007201481199U CN 200720148119 U CN200720148119 U CN 200720148119U CN 201055443 Y CN201055443 Y CN 201055443Y
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- CN
- China
- Prior art keywords
- support bar
- support
- stent
- artery medicine
- medicine elution
- 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 - Lifetime
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Abstract
The utility model discloses an artery medicine eluting stent and is a network hollow out tubular body processed with cobalt-chromium alloy with the method of laser carving and electrochemical polishing. The stent comprises at least one circular waveform support bar and a connecting bar which is connected between the support bars in a screwing way with interval; the shape of the support bar is a list of waves formed by the connection of more than one sine waveform units; the bending position at the wave crest and the trough of the sine waveform unit is a bend angle formed by the connection of curved shapes with different diameters; the shape of the connecting bar is the connection of a section of S-shaped sine curved shape and a section of straight line; the surface of the stent is covered with a medicine coating. The bending position at the wave crest and the trough of the sine waveform unit adopts the curve-shaped bending angle with different diameters so that bending pressure of the support bar and rebounding rate are reduced and the stent falling incidence rate caused by insufficient retentiveness can be reduced. The through external diameter of the stent is 1 to 1.08mm after pressing holding and then the probability for getting through and the operability of the stent are improved significantly.
Description
Technical field
This utility model belongs to medical instruments field, more particularly, relate to a kind of medical treatment device that is used for being inserted into blood vessel, especially relate to a kind of artery medicine elution bracket that is made of metal that is inserted in the tremulous pulse, it is narrow used to be used for the treatment of cardiovascular and cerebrovascular vessel.
Background technology
The arterial bracket implantation is from the mid-80 appearance of 20th century, an and coronary heart disease Wicresoft interventional therapeutic technique that in nearly 5 years, develops rapidly, this technology is under the guiding of X image documentation equipment and monitoring, operate puncture sheath pipe by the doctor, the radiography seal wire, angiography catheter, guiding catheter, guide seal wire, assistive devices such as sacculus dilating catheter, support is sent into the pathological changes narrow location in the tremulous pulse the most at last, by being pressurizeed, stent delivery system expands the metal rack of fenestral fabric, make bracket leg prop up narrow pathological changes tremulous pulse, thereby reach the recovery lumen diameter, guarantee the therapeutic purposes of normal blood flow.This method has become one of main treatment means of ischemic heart desease such as the acute obturation of present clinical treatment arteria coronaria, arteria coronaria blood vessel limitation pathological changes, Vein Bridge blood vessel limitation pathological changes, the chronic pathological changes of entirely shutting, acute myocardial infarction.At present, aspect differences such as the selection of the material of artery medicine elution bracket on the market, structural design are little, embodied the good compliance or the support force performance of support substantially, and still, performance is relatively weaker aspect operability and security performance.
The utility model content
In view of this, the technical problem that mainly solves of the present utility model is to provide a kind of and has good operability, safety, and the artery medicine elution bracket of pharmaceutical carrier platform is provided.
For reaching above-mentioned technical problem, the technical solution of the utility model is achieved in that a kind of artery medicine elution bracket, the netted hollow out tubular body that processes through laser engraving and electrochemical polish by the L605 cochrome, it comprises the support bar of more than one ring waveform, and the interval spiral is connected in the connecting rod between this support bar, wherein, a train wave that is shaped as the continuous formation in more than one sinusoidal wave form unit of described support bar, the bending part that is positioned at the unitary crest of this sinusoidal wave form, trough is the bent angle that the shaped form of different radii is formed by connecting; The serpentine sinusoidal segments that is shaped as of described connecting rod connects a straightway; Surface coverage at described support has medication coat.
Above-mentioned support bar is that diameter is the rhabodoid of the different in width of 0.07～0.09mm.
Above-mentioned connecting rod " S " shape sine curve segment length is identical with the outer electrical path length of described sinusoidal wave form unit or described bent angle.
The sinusoidal wave form unit of above-mentioned support bar is along be circumferentially with 6～9 of described support.
The technique effect that this utility model reaches is as follows:
1, artery medicine elution bracket of the present utility model has adopted submissive connecting rod, and be connected between the support bar with the interval helical arrangement, thereby make support strengthen compliance, the percent of pass that helps the collateral blood vessels of support, when carry out side shoot by and side shoot when expansion, the sinusoidal wave form unit is fully expanded, and easier clinically collateral blood vessels is handled, reduced the generation of " fish scale " and " perk " phenomenon, so support is safer in the clinical manipulation process.
2, the unitary crest of sinusoidal wave form, the non-radius curve shape bent angle that waits is adopted in the bending of trough everywhere, the radius of curvature of different radii shaped form bent angle is little, and the width of corner is starkly lower than the width of support bar straightway, therefore obviously reduced the warpage pressure of support bar, the rebound degree of this part is descended, when carrying out support and carrying sacculus to press holding assembling, support more closely combines with carrying sacculus, be not easy to take place resilience, thereby obviously improve the retentivity of support, in clinical manipulation, lowered the support that causes because of retentivity the is not enough incidence rate that comes off.Simultaneously, support bar has bigger warpage space, has the littler external diameter 1～1.08mm that passes through after support is pressed and held, and has improved the passability of support significantly, operability.And after the support expansion, the different shaped form bent angle structure of radius can fully be opened, and makes the sinusoidal wave form unit of support bar become 40 °～50 ° angles with the straightway that is positioned at both sides, increases the radial support power of support from mechanical structure.
3, the connecting rod of support takes long straightway to cooperate the lath type design of serpentine sinusoidal segments, its width is littler than the width of support bar, wherein, can the extend overall length of submissive connection of straightway, reduced submissive section axial stress simultaneously, thereby and compression takes place or stretches the axial compliance of support is greatly improved in the serpentine sinusoidal segments when support carries out bending and expansion, the adherent property of axial blood vessel and the vascular compliance of support have been improved simultaneously, the support not normal physiological of malleable blood vessel is out of shape, has reduced the damage to blood vessel.
Description of drawings
Fig. 1 is the structural representation of one section tube wall in the hollow out body body of this utility model tremulous pulse FirebirdTM;
Fig. 2 is the connecting rod structural representation of this utility model tremulous pulse FirebirdTM;
Fig. 3 is the supporting bar structure sketch map of this utility model tremulous pulse FirebirdTM.
The specific embodiment
As Figure 1-3, be artery medicine elution bracket of the present utility model, it is by the metal pipe material to cochrome, carrying out hollow outs such as laser engraving cutting and electrochemical polish handles, the netted hollow out tubular body of making, its material the best is the L605 cochrome, the intensity of L605 cochrome material is 1.8 times of the intensity of the 316L stainless steel that generally adopts, its biocompatibility is better simultaneously, and good mechanical intensity.
Artery medicine elution bracket of the present utility model, it comprises the support bar 1 of more than one ring waveform, support bar 1 is the non-wide thin rod shape body structure of 0.07～0.09mm for diameter, help reducing the overall metal coverage rate of support, reduced to insert local inflammation reaction and damage behind the human body.Connecting rod 2 is connected between the support bar 1 with the interval spiral form, and the serpentine sinusoidal segments 21 of being shaped as of connecting rod 2 connects a straightway 22, serpentine sinusoidal segments 21 be shaped as sinusoidal one-period shape.The string waveform that is shaped as more than one sinusoidal wave form unit 11 formations of support bar 1, the sinusoidal wave form unit 11 of support bar 1 can circumferentially be established 6～9 along support according to real needs, this kind structural design has increased the compliance of support, the percent of pass that helps the collateral blood vessels of support, when carry out side shoot by and side shoot when expansion, sinusoidal wave form unit 11 is fully expanded, make clinical easier collateral blood vessels is handled, reduced the generation of " fish scale " and " perk " phenomenon, made support safer in the clinical manipulation process.
Be positioned at the crest of sinusoidal wave form unit 11, the bent angle 12 that the bending of trough adopts the different radii curve to form everywhere, bent angle 12 radius of curvature are little, and the width of bent angle 12 is starkly lower than the width of support bar 1 straightway 13, therefore, reduced the warpage pressure of support bar 1 significantly, the rebound degree of this part is descended, when carrying out support and carrying sacculus to press to hold assembling, support is more closely combined with carrying sacculus, be not easy to take place resilience, thereby obviously improve the retentivity of support, in clinical manipulation, lowered the support that causes because of retentivity the is not enough incidence rate that comes off.Simultaneously support bar has bigger warpage space, has the littler external diameter 1～1.08mm that passes through after support is pressed and held, and has improved the passability of support, operability.And after the support expansion, bent angle 12 is fully opened, and makes 13 one-tenth 40 °～50 ° angles in sinusoidal wave form unit 11 and the straightway that is positioned at both sides of support bar 1, increases the radial support power of support from mechanical structure.
The submissive connector 2 of support is in the mode of alignment minor tick helical arrangement, be connected between " trough-trough " of support bar 1, make support under the prerequisite that keeps long submissive connection, 11 arrangements in the sinusoidal wave form unit of support bar 1 are more tight, thereby make support more even in space Metal Distribution coverage rate, insert and be difficult for speckle prolapsus uneven or that cause because of the excessive phenomenon of metal local density behind the human body, the high and restenosis incidence rate at a specified future date of the success rate of operation all is improved because of Metal Distribution.In addition, also have medication coat in the surface coverage of support, the support even metal covers and has satisfied as the uniformity requirement of drug stent carrier platform to drug distribution.
And connecting rod 2 designs for long straightway 22 cooperates the lath type of serpentine sinusoidal segments 21, and its width is littler than the width of support bar, and straightway 22 increases submissive connection overall length, has reduced submissive section axial stress.And compression takes place or stretches in serpentine sinusoidal segments 21 when support carries out bending and expansion, therefore the axial compliance of support is greatly improved, the adherent property of axial blood vessel and the vascular compliance of support have been improved simultaneously, the normal physiological of malleable blood vessel is not out of shape to make support, has reduced the damage to blood vessel.The outer electrical path length with sinusoidal wave form unit 11 or bent angle 12 structures in the serpentine sinusoidal segments 21 of submissive connecting rod 2 is consistent, has avoided in other supports because of the circumferentially adherent bad generation of the excessive blood vessel that causes of bendability syndeton Cycle Length.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection domain of the present utility model.
Claims (4)
1. artery medicine elution bracket, the netted hollow out tubular body that processes through laser engraving and electrochemical polish by cochrome, it comprises the support bar of an above ring waveform, and the interval spiral is connected in the connecting rod between the above-mentioned support bar, it is characterized in that, described support bar be shaped as the train wave that an above sinusoidal wave form unit is connected to form, be the bent angle that the shaped form of different radii is formed by connecting in the crook of the unitary crest of this sinusoidal wave form, trough; The serpentine sinusoidal segments that is shaped as of described connecting rod connects a straightway; Surface coverage at described artery medicine elution bracket has medication coat.
2. artery medicine elution bracket as claimed in claim 1 is characterized in that, described support bar is that diameter is the rhabodoid of 0.07～0.09mm width inequality.
3. artery medicine elution bracket as claimed in claim 1 or 2 is characterized in that, the serpentine sine curve segment length of described connecting rod is identical with the outer electrical path length of described sinusoidal wave form element length or described bent angle.
4. artery medicine elution bracket as claimed in claim 1 is characterized in that, the sinusoidal wave form unit of described support bar is along be circumferentially with 6～9 of described artery medicine elution bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201481199U CN201055443Y (en) | 2007-06-01 | 2007-06-01 | Artery medicine elution bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201481199U CN201055443Y (en) | 2007-06-01 | 2007-06-01 | Artery medicine elution bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201055443Y true CN201055443Y (en) | 2008-05-07 |
Family
ID=39424286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201481199U Expired - Lifetime CN201055443Y (en) | 2007-06-01 | 2007-06-01 | Artery medicine elution bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201055443Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103169557A (en) * | 2013-02-27 | 2013-06-26 | 湖南瑞康通科技发展有限公司 | Self-expandable stent system and manufacturing method thereof |
| CN101745153B (en) * | 2010-01-21 | 2014-08-20 | 万瑞飞鸿(北京)医疗器材有限公司 | Cobalt-chromium alloy artery stent with full-biodegradation medicine coating, stent system and preparation method thereof |
| CN109688944A (en) * | 2015-08-31 | 2019-04-26 | 伊西康有限责任公司 | Tubulose surgery construct including attaching material |
-
2007
- 2007-06-01 CN CNU2007201481199U patent/CN201055443Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745153B (en) * | 2010-01-21 | 2014-08-20 | 万瑞飞鸿(北京)医疗器材有限公司 | Cobalt-chromium alloy artery stent with full-biodegradation medicine coating, stent system and preparation method thereof |
| CN103169557A (en) * | 2013-02-27 | 2013-06-26 | 湖南瑞康通科技发展有限公司 | Self-expandable stent system and manufacturing method thereof |
| CN109688944A (en) * | 2015-08-31 | 2019-04-26 | 伊西康有限责任公司 | Tubulose surgery construct including attaching material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WANRUI FEIHONG ( BEIJING ) MEDICAL EQUIPMENT CO., Free format text: FORMER OWNER: ZHANG XU Effective date: 20090731 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090731 Address after: A, block 6, Wantong center, No. 1601, Wai Wai Street, Beijing, Chaoyang District, China: 100020 Patentee after: Medfavour (Beijing) Medical Instrument Co., Ltd. Address before: Beijing city Chongwen District West Flower Market in the South East Building 8, unit 2, room 402, zip code: 100062 Co-patentee before: Wang Haofei Patentee before: Zhang Yang |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080507 |