CN104287878A - Blood intra-cavity support - Google Patents
Blood intra-cavity support Download PDFInfo
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- CN104287878A CN104287878A CN201410471632.6A CN201410471632A CN104287878A CN 104287878 A CN104287878 A CN 104287878A CN 201410471632 A CN201410471632 A CN 201410471632A CN 104287878 A CN104287878 A CN 104287878A
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- blood
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Abstract
The invention discloses a blood intra-cavity support which comprises a tubular support body. Through holes communicated with the inner side and the outer side are formed in the side wall of the support body. The hole axes of the through holes incline to the axial end of the support body. According to the blood intra-cavity support, the through holes communicated with the inner side and the outer side are formed in the side wall of the support body and the blood can be kept circulated inside and outside the support in a branch blood vessel; meanwhile, the hole axes of the through holes incline to the axial end of the support body, the blood intra-cavity support is placed in the mode that the inner ends of the through holes incline in the blood flow direction, the blood is prevented from directly impacting the blood vessel intima, the blood is promoted to flow in the support in a layered mode, vortexes are not generated in the through holes, damage caused by blood flow to the blood vessel intima is greatly reduced, and the blood vessel intima is well protected. Meanwhile, due to the fact that most of the blood vessel intima is not covered at the portion where the blood intra-cavity support is implanted, partial blood vessel endothelium still maintains the functions, interference caused by the support in the functions of the endothelium is reduced, and the good treatment effect is achieved.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly relate to a kind of support in blood-vessel.
Background technology
Intravascular stent inserts at lesion vessels that inner support supports stenosis occlusion section blood vessel to reach, expands the true chamber of blood vessel, isolated pathological changes, reduces blood vessel elasticity retraction and moulding again, keep the object that tube chamber blood flow is unobstructed.Utilize the Minimally Interventional Therapy technology of inner cavity insulation principle, it is by the thinner induction system of a set of caliber, the support that the band of confined state supports is sent to vascular lesion position, after accurately locating, discharged and strut lesion vessels, support generally has overlay film frame and bare bracket two kinds, bare bracket of the prior art mostly is screen net structure, mesh place blood flow still causes larger impact to tunica intima, poor to the protectiveness of inner membrance, and therapeutic effect is not good; It is comparatively reliable that overlay film frame completely cuts off pathological changes effect, but there is the insoluble problems such as blocking branch blood vessel, internal hemorrhage due to trauma, destruction local vascular endothelial function, at present not yet effectively, easily technology address these problems.
Summary of the invention
In view of this, the object of this invention is to provide a kind of support in blood-vessel, the circulation of blood inside and outside support can be kept, greatly reduce the damage that blood flow causes tunica intima simultaneously, improve the protectiveness to tunica intima, reach good therapeutic effect.
Support in blood-vessel of the present invention, comprises the rack body of tubulose, the through hole be interlinked to the outside in the sidewall of described rack body is provided with; Axial one end of hole heart alignment rack body of described through hole tilts;
Further, described through hole is evenly arranged multiple along rack body circumferential and axial, and the hole heart line incline direction of each through hole is consistent;
Further, described rack body comprises by the curling tubular body of resilience sheet material;
Further, described rack body also comprises the bar shaped resilience block for auxiliary resilience being fixed on tubular body inwall;
Further, described bar shaped resilience block to be arranged and fillet is led in the axial both sides of the edge of the corresponding tubular body of bar shaped resilience block medial surface along tubular body circumference;
Further, described resilience sheet material curls into overlap joint edge, and the inside lap limit lateral surface of this overlap joint edge and outer overlap edge medial surface are provided with the snap close for hindering the backrush of resilience sheet material matched;
Further, the edge on described inside lap limit is provided with for the handle hole by tubular body backrush; The hole heart line of described handle hole is axially arranged along tubular body.
The invention has the beneficial effects as follows: support in blood-vessel of the present invention, the through hole be interlinked to the outside in the sidewall of rack body is provided with, the circulation of blood inside and outside support can be kept at branch vessel place, the axial one end of the hole heart alignment rack body of through hole tilts simultaneously, support in blood-vessel is placed in the inner mode tilted towards the blood flow direction of through hole, avoid blood flow and directly impact tunica intima, and promote that blood flows as a laminar flow in support, eddy current is not produced in through hole, greatly reduce the damage that blood flow causes tunica intima, improve the protectiveness to tunica intima, simultaneously because the most of tunica intima of support in blood-vessel implantation place is not capped, local vascular endothelium still maintains self function, reduces the interference of support Endothelial Function, after blood flow impacts oblique through hole, produce the power of blood vessel dilating, be conducive to the tight docile of blood vessel of support and corresponding sections, due to the design of oblique through hole, make the blood entered between support and blood vessel be easy to pass back into support tube intracavity, reduce the pressure reduction that support is outer, interior, avoid the occurrence condition of the complication " internal hemorrhage due to trauma " of overlay film frame, due to through hole dense arrangement, interval between through hole is thin and have good pliability, when support needs flexing, can be easy to reach by the caliber of the caliber of compression lesser curvature side through hole and the large curved side through hole that stretches, and the intracavity face of support remains level and smooth and non-wrinkled.Reach good therapeutic effect by above mechanism.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is cross-sectional structure schematic diagram of the present invention;
Fig. 3 is one-sided wall vertical section structure schematic diagram of the present invention.
Detailed description of the invention
Fig. 1 is structural representation of the present invention; Fig. 2 is cross-sectional structure schematic diagram of the present invention; Fig. 3 is one-sided wall vertical section structure schematic diagram of the present invention, as shown in the figure: the support in blood-vessel of the present embodiment, comprises the rack body of tubulose, the through hole 1 be interlinked to the outside in the sidewall of described rack body is provided with; Axial one end of hole heart alignment rack body of described through hole 1 tilts; the circulation of blood inside and outside support can be kept; support in blood-vessel is flowed to towards blood the mode tilted with through hole 1 the inner to place simultaneously; blood is flowed as a laminar flow in support in blood-vessel; eddy current is not produced at through hole 1 place; greatly reduce the damage that blood flow causes tunica intima, improve the protectiveness to tunica intima, reach good therapeutic effect.
In the present embodiment, described through hole 1 is evenly arranged multiple along rack body circumferential and axial, the hole heart line incline direction of each through hole 1 is consistent, the density of through hole 1 is rationally arranged as required, arrange that multiple through hole 1 can meet the permeability inside and outside rack body, reduce the covering to tunica intima, to keep the circulation of blood inside and outside support.
In the present embodiment, described rack body comprises by the curling tubular body 2 of resilience sheet material, be convenient to the making of rack body and the processing of through hole 1, reduce cost of manufacture, use special implement to be clamped after rack body can being wound into the less tubular of diameter simultaneously, then deliver to the release of endovascular relevant position, utilize that the rebound performance of resilience sheet material is swelling is supported in blood vessel, convenient operation.
In the present embodiment, described rack body also comprises the bar shaped resilience block 3 for auxiliary resilience being fixed on tubular body 2 inwall, ensures the rebound performance of rack body further, increases the support force to blood vessel, ensure therapeutic effect, make support in blood-vessel positioning stablity simultaneously; Bar shaped resilience block 3 respectively arranges one in the axial end, two ends of rack body, also can need uniform multiple vertically in the middle part of rack body again according to resilience, the axial end, two ends of rack body can be made to be close to blood vessel by arranging bar shaped resilience block 3 in the axial end, two ends of rack body, opposing blood flow percussion, avoids support in blood-vessel and blood vessel exfoliation.
In the present embodiment, described bar shaped resilience block 3 is along the setting of tubular body 2 circumference and fillet is led in the corresponding axial both sides of the edge of tubular body 2 of bar shaped resilience block 3 medial surface; To blood flow, there is certain guide function, reduce the obstruction to blood, blood is flowed as a laminar flow in support in blood-vessel.
In the present embodiment, described resilience sheet material curls into overlap joint edge, inside lap limit 4 lateral surface of this overlap joint edge and outer overlap edge 5 medial surface are provided with the snap close 6 for hindering the backrush of resilience sheet material matched, certain retentivity is produced after hindering the backrush of resilience sheet material to refer to resilience sheet material swelling formation tubular body 2, make tubular body 2 structure relatively stable, inside lap limit 4 lateral surface refers to that inside lap limit 4 is along the radially outer side of tubular body 2, outer overlap edge 5 medial surface refers to that outer overlap edge 5 is along the radially inner side of tubular body 2, make together with inside lap limit 4 is pressed on outer overlap edge 5 by the rebound performance of tubular body 2 self, snap close 6 is the tooth-shape structure that can engage, and then utilize the engagement of snap close 6 to hinder the backrush of resilience sheet material, make the swelling rear Stability Analysis of Structures of resilience sheet material, by the adjustment of snap close, according to the change of vessel lumen, regulate the size of support caliber, reach abundant expansion, the object of support blood vessels, snap close can effectively prevent support resilience, ensures support support effect.
In the present embodiment, the edge on described inside lap limit 4 is provided with for the handle hole 7 by tubular body 2 backrush; The hole heart line of described handle hole 7 is axially arranged along tubular body 2, can use be similar to tweezers instrument by handle hole 7 by the rolling of resilience sheet material, be convenient to placement and the taking-up of support in blood-vessel.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (7)
1. a support in blood-vessel, is characterized in that: the rack body comprising tubulose, the through hole be interlinked to the outside in the sidewall of described rack body is provided with; Axial one end of hole heart alignment rack body of described through hole tilts.
2. support in blood-vessel according to claim 1, is characterized in that: described through hole is evenly arranged multiple along rack body circumferential and axial, and the hole heart line incline direction of each through hole is consistent.
3. support in blood-vessel according to claim 1, is characterized in that: described rack body comprises by the curling tubular body of resilience sheet material.
4. support in blood-vessel according to claim 3, is characterized in that: described rack body also comprises the bar shaped resilience block for auxiliary resilience being fixed on tubular body inwall.
5. support in blood-vessel according to claim 3, is characterized in that: described bar shaped resilience block is along the setting of tubular body circumference and fillet is led in the axial both sides of the edge of the corresponding tubular body of bar shaped resilience block medial surface.
6. support in blood-vessel according to claim 3, it is characterized in that: described resilience sheet material curls into overlap joint edge, the inside lap limit lateral surface of this overlap joint edge and outer overlap edge medial surface are provided with the snap close for hindering the backrush of resilience sheet material matched.
7. support in blood-vessel according to claim 6, is characterized in that: the edge on described inside lap limit is provided with for the handle hole by tubular body backrush; The hole heart line of described handle hole is axially arranged along tubular body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410471632.6A CN104287878B (en) | 2014-09-16 | 2014-09-16 | Blood intra-cavity support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410471632.6A CN104287878B (en) | 2014-09-16 | 2014-09-16 | Blood intra-cavity support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104287878A true CN104287878A (en) | 2015-01-21 |
| CN104287878B CN104287878B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410471632.6A Active CN104287878B (en) | 2014-09-16 | 2014-09-16 | Blood intra-cavity support |
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| CN (1) | CN104287878B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107280826A (en) * | 2017-06-01 | 2017-10-24 | 北京工业大学 | Joinery and its construction brace rod intravascular stent |
| CN108420576A (en) * | 2018-04-02 | 2018-08-21 | 杨敏 | A kind of compartment is anti-skidding and can be with the intravascular stent of chronic drug |
| CN109259908A (en) * | 2018-09-26 | 2019-01-25 | 广州医科大学 | A kind of novel load medicine airway stent and preparation method thereof |
| CN109512559A (en) * | 2017-12-11 | 2019-03-26 | 河南理工大学 | A kind of supersonic induced micro-embossing preparation method of Biodegradable tubular bracket |
| WO2022099491A1 (en) * | 2020-11-11 | 2022-05-19 | 北京积水潭医院 | Prosthesis for cancellous bone reconstruction |
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| US5984963A (en) * | 1993-03-18 | 1999-11-16 | Medtronic Ave, Inc. | Endovascular stents |
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| US20140067041A1 (en) * | 2000-03-27 | 2014-03-06 | Neovasc Medical Ltd. | Methods for treating abnormal growths in the body using a flow reducing implant |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107280826A (en) * | 2017-06-01 | 2017-10-24 | 北京工业大学 | Joinery and its construction brace rod intravascular stent |
| CN107280826B (en) * | 2017-06-01 | 2019-07-12 | 北京工业大学 | Joinery and its construction supporting rib intravascular stent |
| CN109512559A (en) * | 2017-12-11 | 2019-03-26 | 河南理工大学 | A kind of supersonic induced micro-embossing preparation method of Biodegradable tubular bracket |
| CN109512559B (en) * | 2017-12-11 | 2021-05-28 | 河南理工大学 | Ultrasonic-induced micro-pressure printing preparation method for biodegradable tubular stent |
| CN108420576A (en) * | 2018-04-02 | 2018-08-21 | 杨敏 | A kind of compartment is anti-skidding and can be with the intravascular stent of chronic drug |
| CN109259908A (en) * | 2018-09-26 | 2019-01-25 | 广州医科大学 | A kind of novel load medicine airway stent and preparation method thereof |
| WO2022099491A1 (en) * | 2020-11-11 | 2022-05-19 | 北京积水潭医院 | Prosthesis for cancellous bone reconstruction |
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| Publication number | Publication date |
|---|---|
| CN104287878B (en) | 2017-02-08 |
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