CN102198023A - Artificial blood vessel for realizing zero-angle bypass grafting - Google Patents
Artificial blood vessel for realizing zero-angle bypass grafting Download PDFInfo
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- CN102198023A CN102198023A CN201110135993XA CN201110135993A CN102198023A CN 102198023 A CN102198023 A CN 102198023A CN 201110135993X A CN201110135993X A CN 201110135993XA CN 201110135993 A CN201110135993 A CN 201110135993A CN 102198023 A CN102198023 A CN 102198023A
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- blood vessel
- bridge
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- angle
- bypass grafting
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Abstract
The invention discloses an artificial blood vessel for realizing zero-angle bypass grafting, which is characterized by comprising an artificial bypass grafting blood vessel (E part in a figure), a common artificial blood vessel part (A in the figure), round-cornered transition part (B in the figure), a parallel blood vessel part (C in the figure) and a tail end stitched edge (D in the figure), wherein the four parts are combined into a whole. An F part in the figure is a sketch map of a blood vessel to be grafted with a bypass. Compared with the conventional artificial bypass grafting blood vessel, the artificial blood vessel has a round-cornered part which allows the blood flowing direction in the bypass grafting blood vessel to gradually reduce an included angle with the axial direction of the blood vessel to be grafted with the bypass to zero degree and to be parallel to the axial direction of the blood vessel, so that the bypass grafting blood vessel is stitched with the blood vessel to be grafted with the bypass in a zero-angle mode; therefore, the disturbance of blood flow in a bypass grafting stitching part is minimized, and the restenosis of blood vessel after the bypass grafting is inhibited effectively.
Description
Technical field
The present invention relates to a kind of artificial blood vessel, more particularly, is a kind of artificial blood vessel that secondary vessel puts up a bridge that is used for.(as shown in Figure 3).
Background technology
The vascular bypass art is widely used in treatment vascular occlusion patient.By the mode of putting up a bridge, allow endovascular blood flow walk around inaccessible section vessel flow to far-end, thus the blood supply that recovers the far-end organ.At present, the used material of bridging all is to adopt the patient from body blood vessel or artificial blood vessel basically.Yet the back patient's vascellum endometrial hyperplasia of putting up a bridge has become a main cause of middle or small vascular surgery later stage failure.The vascular bypass art adopts the suture way in upstream, downstream more.Though neointimal hyperplasia can betide two sutures in upstream and downstream of implantable intravascular simultaneously, for the such Coronary Artery Bypass of upstream and downstream, the neointimal hyperplasia that the place, downstream produces is obvious far beyond upstream end.Downstream, operation back suture vascellum endometrial hyperplasia mainly occurs in two positions: the corresponding bottom surface of vascular anastomosis suture place and anastomosis main body tremulous pulse, the latter is the main position that causes performing the operation the later stage failure.Studies show that in a large number the neointimal hyperplasia at vascular anastomosis suture place mainly is unbalance caused blood vessel healing of physical trauma and compliance and reconstruct.And the vascellum endometrial hyperplasia mechanism of the corresponding bottom surface, anastomosis, main body tremulous pulse place of the later stage failure that causes performing the operation is not clear.But no matter its mechanism why, the Coronary Artery Bypass bleeding from anus fails to be convened for lack of a quorum and is disturbed and produces vortex in downstream suture bottom and be undisputable fact, and this whirlpool is the root that causes neointimal hyperplasia.
Discover that in traditional vascular bypass art, the angle between main blood vessel and the bridge blood vessel generally is 60 to spend between 30 degree, and the bridging angle is more little, and operation is implemented difficult more, and the bridging angle is big more, and it is easy more that operation is implemented.But there are some researches show that the bridging angle is big more, the disturbance that the back blood flow of putting up a bridge is subjected to is just big more, and the vortex that produces at the downstream suture is also big more, thereby the also easy more generation that causes vascular suture place bottom surface neointimal hyperplasia.
Summary of the invention
Purpose of the present invention is exactly the deficiency that exists at prior art, a kind of artificial blood vessel that can realize that zero degree is put up a bridge is proposed, after just adopting artificial blood vessel of the present invention, can realize that by the angle between bridge blood vessel and the bridge blood vessel be zero, the disturbance that the back blood flow of putting up a bridge is subjected to drops to minimum, thereby solves neointimal hyperplasia and restenosis problem after the bridging.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions: a kind of artificial blood vessel that can realize that zero degree is put up a bridge, this blood vessel is by ordinary people's hemopoietic tube portion, fillet turning transition portion, parallel vasculature part, terminal four parts in edge of sewing up are formed, and these four parts make up as a whole.Described zero degree bridging artificial blood vessel is characterized as: have a fillet turn fractions on this artificial blood vessel, this part has realized the blood flow direction in the bridge blood vessel and has been zero parallel direction by the axial of bridge blood vessel from there being angle to carry out the transition to angle gradually.And for the fixing parallel portion of bridge blood vessel, the terminal position of this turn fractions need with main vascular suture, this is sewed up the just connection of the wall of two blood vessels and sews up, it goes without doing blood vessel otch is not because blood is from flowing through here.In the end portion of parallel blood vessel, on by bridge blood vessel, do otch, bridge blood vessel with the zero angle mode with sewed up by bridge blood vessel.
Pass through technique scheme, when putting up a bridge with artificial blood vessel of the present invention, can realize and be sewed up in the mode of zero angle by bridge blood vessel, help improving the terminal hemodynamics environment of putting up a bridge, the disturbance minimum that blood flow is subjected to, bridging downstream whirlpool also is difficult to form, thereby reaches the purpose that effectively prevents end restenosis behind the bypass surgery.And adopt artificial blood vessel of the present invention to put up a bridge, operation is implemented to help promoting in clinical use than being easier to.
Description of drawings
Fig. 1 is a front view of the present invention;
Fig. 2 is a three-dimensional view of the present invention;
Fig. 3 is the terminal and bridge blood vessel stitching back sketch map of artificial blood vessel of the present invention;
Among Fig. 1: A is ordinary people's hemopoietic tube portion of bridge blood vessel of the present invention, is connected with bridge blood vessel during bridging; B partly is the fillet turning transition portion of bridge blood vessel of the present invention, play the bridge blood vessel blood flow direction from becoming the effect that angle is zero parallel direction with angle is axially arranged by bridge blood vessel, simultaneously for fixing bridge blood vessel, the end that this fillet is turned when putting up a bridge will with carried out the edge stitching by bridge blood vessel and be connected and fixed; C partly be in the bridge blood vessel of the present invention with by the parallel part of bridge blood vessel; D partly be in the bridge blood vessel of the present invention with by the terminal sutured portion of bridge blood vessel, blood will flow into by bridge blood vessel from the mode of this suture location with parallel zero degree angle.
Among Fig. 3: E represents artificial bridge blood vessel of the present invention, F represent to stop up by bridge blood vessel.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:
As Fig. 1, Fig. 2, shown in Figure 3: artificial blood vessel of the present invention mainly is by ordinary people's hemopoietic tube portion, fillet turning transition portion, parallel vasculature part, terminal four parts in marginal portion of sewing up are formed.It is characterized in that this artificial bridge blood vessel has a fillet turn fractions, can become zero degree, reach the suture that reduces to put up a bridge the turbulent purpose of blood flow with bridge blood vessel and by the angle between the bridge blood vessel.Adopt artificial blood vessel of the present invention to put up a bridge, blood flow flows into fillet turning transition portion by artificial common vasculature part, the blood flow direction in the bridge blood vessel with by the axial angle of bridge blood vessel gradually transition be zero degree.At the terminal position that fillet is turned, bridge blood vessel plays the effect of fixing this artificial bridge blood vessel with being sewn to by the edge part branch of bridge blood vessel.Blood flow enters parallel vasculature part afterwards, then enters by in the bridge blood vessel by the mode of end stitching marginal portion with zero angle.Adopt the mode of zero angle to put up a bridge, can reduce of the disturbance of the terminal suture of bridge blood vessel to greatest extent, effectively avoid the generation of downstream whirlpool of putting up a bridge, prevent to put up a bridge the purpose of restenosis afterwards thereby reach to blood flow.Adopt artificial bridge blood vessel of the present invention to put up a bridge, operation is implemented simple, promotes in clinical easily, has important practical value.
Claims (3)
1. the artificial blood vessel that can realize that zero degree is put up a bridge is characterized in that, this artificial blood vessel is by ordinary people's hemopoietic tube portion, and fillet turning transition portion, parallel vasculature part, end are sewed up four the part compositions in edge, and these four parts make up as a whole.
2. a kind of artificial blood vessel that can realize that zero degree is put up a bridge according to claim 1 is characterized in that, can realize bridge blood vessel and is zero degree by the stitching angle between the bridge blood vessel.
3. a kind of artificial blood vessel that can realize that zero degree is put up a bridge according to claim 1, it is characterized in that, this artificial blood vessel has a fillet turn fractions, can change the blood flow direction in the bridge blood vessel, from becoming the parallel direction of no angle with angle is axially arranged by bridge blood vessel, last blood enters by bridge blood vessel in the mode of zero angle with the blood flow direction in the bridge blood vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110135993XA CN102198023A (en) | 2011-05-24 | 2011-05-24 | Artificial blood vessel for realizing zero-angle bypass grafting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110135993XA CN102198023A (en) | 2011-05-24 | 2011-05-24 | Artificial blood vessel for realizing zero-angle bypass grafting |
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| CN102198023A true CN102198023A (en) | 2011-09-28 |
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| CN201110135993XA Pending CN102198023A (en) | 2011-05-24 | 2011-05-24 | Artificial blood vessel for realizing zero-angle bypass grafting |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998019607A1 (en) * | 1996-11-08 | 1998-05-14 | Gore Enterprise Holdings, Inc. | Improved vascular shunt graft and junction for same |
| WO1998052474A1 (en) * | 1997-05-22 | 1998-11-26 | Kensey Nash Corporation | Anastomosis system and method of use |
| US20060161173A1 (en) * | 1991-07-03 | 2006-07-20 | Maginot Thomas J | Endoscopic bypass grafting method utilizing an inguinal approach |
| CN101385667A (en) * | 2008-09-24 | 2009-03-18 | 北京航空航天大学 | Artificial blood vessel with bias current guide |
| CN101433476A (en) * | 2008-12-12 | 2009-05-20 | 北京工业大学 | Winding type bypass blood vessel |
| CN201299669Y (en) * | 2008-12-12 | 2009-09-02 | 北京工业大学 | A meandering-type bypass vessel |
-
2011
- 2011-05-24 CN CN201110135993XA patent/CN102198023A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060161173A1 (en) * | 1991-07-03 | 2006-07-20 | Maginot Thomas J | Endoscopic bypass grafting method utilizing an inguinal approach |
| WO1998019607A1 (en) * | 1996-11-08 | 1998-05-14 | Gore Enterprise Holdings, Inc. | Improved vascular shunt graft and junction for same |
| WO1998052474A1 (en) * | 1997-05-22 | 1998-11-26 | Kensey Nash Corporation | Anastomosis system and method of use |
| CN101385667A (en) * | 2008-09-24 | 2009-03-18 | 北京航空航天大学 | Artificial blood vessel with bias current guide |
| CN101433476A (en) * | 2008-12-12 | 2009-05-20 | 北京工业大学 | Winding type bypass blood vessel |
| CN201299669Y (en) * | 2008-12-12 | 2009-09-02 | 北京工业大学 | A meandering-type bypass vessel |
Non-Patent Citations (1)
| Title |
|---|
| 乔爱科等: "端对端缝合股动脉搭桥术的流动分析", 《北京生物医学工程》, vol. 25, no. 4, 31 August 2006 (2006-08-31), pages 354 - 359 * |
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Application publication date: 20110928 |