CN203263585U - Support-type blood vessel treating aortic dissection - Google Patents
Support-type blood vessel treating aortic dissection Download PDFInfo
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- CN203263585U CN203263585U CN 201320298303 CN201320298303U CN203263585U CN 203263585 U CN203263585 U CN 203263585U CN 201320298303 CN201320298303 CN 201320298303 CN 201320298303 U CN201320298303 U CN 201320298303U CN 203263585 U CN203263585 U CN 203263585U
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- stent
- blood vessel
- wire rings
- tinsel
- epimere
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Abstract
The utility model discloses a support-type blood vessel applicable to treating an aortic dissection. The support-type blood vessel is structurally divided into an upper section and a lower section. The upper section is of an equal-thickness model and is composed of a plurality of independent metal wire rings coated by artificial blood vessel thin films. The lower section of the support-type blood vessel is of a thick-end-up model or a vertically equal-thickness model. Metal wires of the lower section of the support-type blood vessel are exposed and woven in a crossed-running mode, and rhombic meshes are formed in the side wall. The inner diameter of an upper opening of the lower section of the support-type blood vessel is equal to that of the upper section of the support-type blood vessel. The upper section and the lower section are connected into a whole by means of the artificial blood vessel thin films. After installed at the aortic arch portion, the support-type blood vessel is suitable for the anatomical curve of the aortic arch portion, a gap is effectively blocked, and the adjacent artery blood flow is not influenced.
Description
Technical field
This utility model relates to the medical apparatus and instruments of implant into body, relates in particular to the stent for aortic arch arterial wall interlayer cut shutoff treatment use.
Background technology
Aorta is the thickest arteries of human body, aortic arch is its direction of travel 180 degree of nearly having transferred from ascending part to the section of falling, due to aorta each position difference to blood flow stress, dissection of aorta the first cut often betides aortic arch and falls section's left subclavian artery opening with isthmus at a distance, and descending aorta is less with the probability of generation cut far away.So-called dissecting aneurysm is that endarterium is torn, the pathological change that between the inner membrance that blood enters tremulous pulse and middle film, the formation knob occurs.One of Therapeutic Method of contemporary medical science is to be implanted into stent at lumen of artery, shutoff endarterium cut.Stent designed, that make is the full structure of film of support at present, is not suitable for the shutoff aortic arch and falls section's intimal tear.Because after full structure of film stent is installed, the intercostal arteries of the easy shutoff of rack far end overlay film below the first cut, the tremulous pulse openings such as tremulous pulse of supply spinal cord have and cause the risk that paraplegia occurs after intracavitary therapy.
The utility model content
The purpose of this utility model is to provide a kind of stent for the treatment of dissection of aorta, adapt to aortic arch after implanting crooked, can fall section's endarterium the first cut to aortic arch and realize good shutoff, not affect again adjacent each arterial vascular blood circulation.
The stent that this utility model is a kind of is used for the treatment of dissection of aorta is pipe-shaped net rack always under resting state, form with metal wire knitted.It is divided into two sections, and epimere is the thick moulding such as full section, and the wire rings coating artificial blood vessel thin film that is equated, is arranged in parallel by a plurality of internal diameters consists of, and each wire rings is independently, is connected as a single entity after coating artificial blood vessel thin film; Each wire rings of side-looking, its tinsel are the traveling of " Z " font, and namely tinsel is turned back back and forth up and down and formed continuous crest, trough; The height of each crest, the degree of depth of each trough equates in other words.Distance between adjacent peaks or adjacent trough equates.The suitable quantity of wire rings that consists of stent epimere of the present invention is 3-5, and their internal diameters are identical under resting state, and the sidewall height is identical, and density wiry can be identical, also difference can be arranged.When the tinsel density of each wire rings sidewall was not identical, the wire rings that tinsel is dredged was arranged in this pipeline section upper-lower position, and the closeer wire rings of tinsel is arranged in the centre position.After with stent implant into body aortic arch, this pipeline section bends, and the closeer wire rings of tinsel is positioned at the turning point of stent, can bear larger stress.Under resting state, each wire rings is arranged in parallel up and down, between leave slight gap, with the coating of artificial blood vessel's thin film, each wire rings is connected as a single entity, wire rings that go up most the position consists of the suitable for reading of stent.The mode of this wire rings coating artificial blood vessel thin film suitable for reading has two kinds of selections: 1. full coating.That is, all tinsels all are embedded in artificial blood vessel's thin film; 2. not coating, this wire rings are made with artificial blood vessel's thin film and are connected.The mode of full coating is conducive to the firmly whole of stent, and the mode of not coating is conducive to the bending of adaptation aortic arch suitable for reading.
The stent hypomere is upper coarse and lower fine moulding or upper inferior thick moulding, and stent hypomere internal diameter suitable for reading equates with stent epimere internal diameter.Stent hypomere tinsel is intersection traveling braiding, and sidewall forms diamond-mesh; Or tinsel is the traveling of " Z " font, adjacent wire crest, trough place's welding, and sidewall still forms diamond-mesh.Stent hypomere tinsel is exposed, not coating thin film.
The stent two sections are connected as a single entity by artificial blood vessel's thin film.
This utility model stent is Straight under resting state, can smooth out with the fingers the slivering bundle shape stent carrier of packing into, easily discharges when delivering to the target location.The epimere that discharges after-poppet type blood vessel is positioned at the aortic arch place, and the hypomere of stent enters into descending thoracic aorta.Stent epimere (near-end) is the polycycle structure, is easy to the anatomical shape natural torsion with aortic arch, nearly heart side shrinkage, and far heart side is fan-shaped opens; Because its frame metal wire is the traveling of " Z " font, there is the radiation tension force to surrounding, make stent sidewall and the lesion blood vessel wall can docile combination, effective shutoff arterial wall cut.Artificial blood vessel's thin film of institute's coating has enough impacts of large tension stress tolerance aorta high pressure blood flow.
The hypomere of this utility model stent (far-end) is the bare bracket structure, and tinsel is exposed, when stent is played Stabilization, does not affect the blood flow of blood vessels adjacent.
Description of drawings
Fig. 1 is form and the structural representation of this utility model stent under resting state;
Fig. 2 is form and the structural representation of this utility model stent after being in place.
The parts that number in the figure is represented or position are: 1-stent epimere; 2-stent hypomere; 3-stent is suitable for reading; 4-stent upper-lower section handing-over junction; 5-epimere frame metal wire; 6-hypomere frame metal wire.
The specific embodiment
Below the utility model is described in further detail by drawings and Examples.
This utility model stent adopts the metal wire knitted stent upper-lower section skeleton 5,6 of tool elasticity and rigidity.Optional use has stainless steel silk or the titanium alloy wire of memory function, preferred niti-shaped memorial alloy silk.Its string diameter of tinsel used is at 0.1～1mm.Artificial blood vessel's thin film used is terylene (dacron) material.
As shown in Figure 1, the stent that this utility model is applicable to shutoff aortic arch interlayer cut is Straight under resting state, be divided into two sections.Epimere 1 length is 6-10cm, hypomere 2 length 10-14cm; Epimere 1 full sections etc. are thick, and internal diameter is 2.0-4.6cm; Hypomere 2 is upper coarse and lower fine moulding, and hypomere initial part 4 internal diameters equate with epimere 1 internal diameter, and hypomere lower port internal diameter is 4/5 of upper-lower section intersection 4 internal diameters.
Epimere 1 its skeleton 5 of this utility model stent is arranged in parallel up and down for a plurality of wire rings, is connected as a single entity after coating artificial blood vessel thin film.Each wire rings is turned back back and forth with an one metal wire and is the traveling of " Z " font, reaches after the length that needs two ends wiry welding, becomes an endless metal silk support independently.For an endless metal silk support, the height of the crest that the tinsel traveling forms equates, suitable height is 1.4-2.2cm.The trough degree of depth equates with crest height.Distance between adjacent peaks or adjacent trough is 2-6mm.Adopt 3-4 endless metal silk support to be arranged in parallel up and down, with artificial terylene blood vessel thin film coated metal silk skeleton 5, each wire rings is connected as a single entity, consist of the epimere 1 of stent.Wherein, leave the interval between neighbouring wire rings, spacing distance is 1.5-2.0cm.
The tinsel that consists of stent hypomere 2 is intersection traveling braiding, and sidewall forms diamond-mesh; Or tinsel is the traveling of " Z " font, adjacent wire crest, trough place's welding, and sidewall still forms diamond-mesh.Stent hypomere tinsel 6 is exposed, not coating thin film.
The tinsel of stent upper-lower section does not intersect, and does not connect yet, and is connected as a single entity by artificial blood vessel's thin film.
As shown in Figure 2, this utility model stent is after being installed to aortic arch, and the epimere 1 of stent is positioned at the aortic arch place, and the hypomere 2 of stent enters into thoracic aorta.The multiring structure of stent epimere 1 is with the anatomical shape natural torsion of aortic arch, nearly heart side shrinkage, and far away heart side is fan-shaped opens,, close combination docile with the aortic arch inwall, the effective shutoff arterial wall of the artificial blood vessel's thin film cut of 1 coating of epimere.Hypomere 2 density of wires of stent are high, and tinsel is exposed, and whole stent is played Stabilization.The internal diameter of stent hypomere 2 can be big up and small down tendency, the end opening internal diameter is equivalent to 4/5 of upper-lower section junction internal diameter, so the aortal anatomical features of constructor synthorax.The internal diameter of stent hypomere 2 also can be gone up inferior thick, adapts to the anatomical shape of thoracic aorta by the elasticity of stent itself.
Claims (9)
1. a stent for the treatment of dissection of aorta, is characterized in that, is to form pipe-shaped net rack always with metal wire knitted under resting state; Its structure is divided into two sections, epimere is the thick moulding such as full section, the wire rings coating artificial blood vessel thin film that is equated, is arranged in parallel by a plurality of internal diameters consists of, each wire rings is independently, the side-looking wire rings, its tinsel is the traveling of " Z " font, is connected as a single entity after coating artificial blood vessel thin film;
The stent hypomere is upper coarse and lower fine moulding or upper inferior thick moulding, and its tinsel is exposed, and not coating thin film, tinsel are intersection traveling braiding, and sidewall forms diamond-mesh;
Stent hypomere internal diameter suitable for reading equates with stent epimere internal diameter, and two sections are connected as a single entity by artificial blood vessel's thin film.
2. stent according to claim 1, is characterized in that, the quantity that consists of the wire rings of stent epimere is 3-5, leaves the interval between neighbouring wire rings, and spacing distance is 1.5-2.0cm.
3. stent according to claim 1 and 2, it is characterized in that, the tinsel density of each wire rings sidewall of formation stent epimere is identical, the height of the crest that the tinsel traveling forms equates, be highly 1.4-2.2cm, the distance between adjacent peaks or adjacent trough is 2-6mm.
4. stent according to claim 1 and 2, it is characterized in that, the tinsel density of the wire rings sidewall of formation stent epimere is not identical, and the wire rings that tinsel is dredged is positioned at upper-lower position, and the closeer wire rings of tinsel is positioned at the centre position.
5. stent according to claim 1, is characterized in that, consists of the stent full coating artificial blood vessel of a wire rings thin film suitable for reading.
6. stent according to claim 1, is characterized in that, consists of stent not coating of a wire rings artificial blood vessel thin film suitable for reading, makes with artificial blood vessel's thin film to be connected.
7. stent according to claim 1, is characterized in that, on stent, segment length is 6-10cm, and lower segment length is 10-14cm.
8. stent according to claim 1, is characterized in that, stent epimere internal diameter is 2.0-4.6cm.
9. stent according to claim 1, is characterized in that, the stent hypomere is upper coarse and lower fine moulding, and hypomere initial part internal diameter equates with the epimere internal diameter, and hypomere lower port internal diameter is 4/5 of upper-lower section intersection internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320298303 CN203263585U (en) | 2013-05-29 | 2013-05-29 | Support-type blood vessel treating aortic dissection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320298303 CN203263585U (en) | 2013-05-29 | 2013-05-29 | Support-type blood vessel treating aortic dissection |
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| CN203263585U true CN203263585U (en) | 2013-11-06 |
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| CN 201320298303 Expired - Fee Related CN203263585U (en) | 2013-05-29 | 2013-05-29 | Support-type blood vessel treating aortic dissection |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104873301A (en) * | 2014-12-19 | 2015-09-02 | 中国人民解放军第二军医大学 | I type endoleak-preventing stent graft system with forked villus structure |
| CN104873241A (en) * | 2014-12-19 | 2015-09-02 | 中国人民解放军第二军医大学 | I type endoleak-preventing stent graft system with spiral villus structure |
| CN104873303A (en) * | 2014-12-19 | 2015-09-02 | 中国人民解放军第二军医大学 | Endoleak-preventing stent graft system with sponge structure |
| CN104873302A (en) * | 2014-12-19 | 2015-09-02 | 中国人民解放军第二军医大学 | I type endoleak-preventing stent graft system with villus structure |
| CN104873304A (en) * | 2014-12-19 | 2015-09-02 | 中国人民解放军第二军医大学 | I type endoleak-preventing stent graft system with peripheral-tension-optimizing sponge structure |
| CN104887347A (en) * | 2014-12-19 | 2015-09-09 | 中国人民解放军第二军医大学 | Internal leakage prevention support transplanting system with villus structure attached |
| WO2016095864A1 (en) * | 2014-12-19 | 2016-06-23 | 中国人民解放军第二军医大学 | Endoleak-preventing stent graft system |
| CN107296668A (en) * | 2017-08-01 | 2017-10-27 | 有研医疗器械（北京）有限公司 | A kind of non-film-coated vascular support and its method for releasing |
| WO2019128703A1 (en) * | 2017-12-27 | 2019-07-04 | 先健科技(深圳)有限公司 | Covered stent |
| CN109966015A (en) * | 2017-12-27 | 2019-07-05 | 先健科技(深圳)有限公司 | Overlay film frame |
| CN109966017A (en) * | 2017-12-27 | 2019-07-05 | 先健科技(深圳)有限公司 | Overlay film frame |
-
2013
- 2013-05-29 CN CN 201320298303 patent/CN203263585U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016095864A1 (en) * | 2014-12-19 | 2016-06-23 | 中国人民解放军第二军医大学 | Endoleak-preventing stent graft system |
| CN104873301A (en) * | 2014-12-19 | 2015-09-02 | 中国人民解放军第二军医大学 | I type endoleak-preventing stent graft system with forked villus structure |
| CN104873303A (en) * | 2014-12-19 | 2015-09-02 | 中国人民解放军第二军医大学 | Endoleak-preventing stent graft system with sponge structure |
| CN104873302A (en) * | 2014-12-19 | 2015-09-02 | 中国人民解放军第二军医大学 | I type endoleak-preventing stent graft system with villus structure |
| CN104873304A (en) * | 2014-12-19 | 2015-09-02 | 中国人民解放军第二军医大学 | I type endoleak-preventing stent graft system with peripheral-tension-optimizing sponge structure |
| CN104887347A (en) * | 2014-12-19 | 2015-09-09 | 中国人民解放军第二军医大学 | Internal leakage prevention support transplanting system with villus structure attached |
| CN104873241A (en) * | 2014-12-19 | 2015-09-02 | 中国人民解放军第二军医大学 | I type endoleak-preventing stent graft system with spiral villus structure |
| CN104873303B (en) * | 2014-12-19 | 2018-08-21 | 中国人民解放军第二军医大学 | The anti-interior leakage stent graft system of attached sponge structure |
| CN104873304B (en) * | 2014-12-19 | 2018-08-21 | 中国人民解放军第二军医大学 | Stent graft system is leaked in the anti-I types of the attached circumferential tension sponge structure of optimization |
| CN107296668A (en) * | 2017-08-01 | 2017-10-27 | 有研医疗器械（北京）有限公司 | A kind of non-film-coated vascular support and its method for releasing |
| WO2019128703A1 (en) * | 2017-12-27 | 2019-07-04 | 先健科技(深圳)有限公司 | Covered stent |
| CN109966015A (en) * | 2017-12-27 | 2019-07-05 | 先健科技(深圳)有限公司 | Overlay film frame |
| CN109966017A (en) * | 2017-12-27 | 2019-07-05 | 先健科技(深圳)有限公司 | Overlay film frame |
| US11471265B2 (en) | 2017-12-27 | 2022-10-18 | Lifetech Scientific (Shenzhen) Co. Ltd. | Covered stent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191204 Address after: 100853 Fuxing Road, Beijing, Haidian District, No. 28 Patentee after: General Hospital of Chinese PLA Address before: 100853 No.28 Fuxing Road, Haidian District, Beijing Co-patentee before: Ma Xiaohui Patentee before: Guo Wei |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20200529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |