CN109893293A - A kind of artificial blood vessel - Google Patents
A kind of artificial blood vessel Download PDFInfo
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- CN109893293A CN109893293A CN201910177069.4A CN201910177069A CN109893293A CN 109893293 A CN109893293 A CN 109893293A CN 201910177069 A CN201910177069 A CN 201910177069A CN 109893293 A CN109893293 A CN 109893293A
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- blood vessel
- internal layer
- previous anastomotic
- length
- artificial
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Abstract
The present invention relates to a kind of artificial blood vessels, belong to medical equipment technical field, including outer blood vessel, the outer blood vessel, which is nested with, is provided with internal layer blood vessel, outer blood vessel inner wall is equipped with the junction being connected with internal layer blood vessel, one end or intermediate connected of junction and internal layer blood vessel；Outer blood vessel is connected by the internal layer blood vessel being connected in the intravascular nesting of outer layer with its inner wall when connecting artificial blood vessel by the present invention, and internal layer length of vessel is greater than the length for identical outer blood vessel, i.e. the length of internal layer blood vessel surmounts previous anastomotic；When blood flows through internal layer blood vessel, blood stream pressure makes internal layer blood vessel be affixed to previous anastomotic, closing, isolation, contention effect is played to previous anastomotic and suture pinprick, to achieve the effect that prevent previous anastomotic and sewing needle ophthalmorrhagia, convenience more secure when used.
Description
Technical field
The present invention relates to medical equipment technical field, specifically a kind of artificial blood vessel.
Background technique
Artificial blood vessel is the common blood vessel replacement of vascular surgery and department of cardiac surgery or repair materials.Current artificial blood vessel exists
When being replaced, if blood vessel has interlayer or vascular wall the lesions such as serious hardening, calcification occur, previous anastomotic and suture pinprick are normal
Normal severe haemorrhage, previous use add the measures such as needle suture, blood vessel outside compressing, hemostatic material, haemostatic medicament or blood product to stop
Blood, haemostatic effect are poor.
Summary of the invention
The purpose of the present invention is to provide a kind of artificial blood vessels, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of artificial blood vessel, including outer blood vessel, the outer blood vessel, which is nested with, is provided with internal layer blood vessel, in outer blood vessel
Wall is equipped with the junction being connected with internal layer blood vessel.
As further technical solution of the present invention: the junction is connected with one end of internal layer blood vessel.
As further technical solution of the invention: the length of the internal layer blood vessel is greater than for identical outer blood vessel
Length, i.e. internal layer length of vessel surmounts previous anastomotic.
As further technical solution of the invention: the diameter of internal layer blood vessel is less than the diameter of outer blood vessel, internal layer blood
Pipe outside diameter is approximately equal to outer blood vessel internal diameter.
As further technical solution of the invention: the outer blood vessel material is biocompatible materials.
As further technical solution of the invention: the internal layer blood vessel material is biocompatible materials.
As further technical solution of the invention: the biocompatible materials include polyurethane.
As further technical solution of the invention: the junction and the centre of internal layer blood vessel are connected.
Compared with prior art, the beneficial effects of the present invention are: by being connected with its inner wall in the intravascular nesting of outer layer
Outer blood vessel is connected by internal layer blood vessel when connecting artificial blood vessel, and internal layer length of vessel surmounts previous anastomotic, when blood flows through internal layer
When blood vessel, blood stream pressure makes internal layer blood vessel be affixed to previous anastomotic, plays closing, isolation, contention effect to previous anastomotic and suture pinprick,
To achieve the effect that prevent previous anastomotic and sewing needle ophthalmorrhagia, convenience more secure when used.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of artificial blood vessel；
Fig. 2 is the structural schematic diagram before artificial blood vessel coincide；
Fig. 3 is the structural schematic diagram during artificial blood vessel coincide；
Fig. 4 is the structural schematic diagram after artificial blood vessel coincide；
Fig. 5 is another structural schematic diagram of artificial blood vessel.
In figure: 1- outer blood vessel, 2- internal layer blood vessel, the junction 3-.
Specific embodiment
In the description of the present invention, it is to be understood that, term " centre ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be braiding seam
Connection is closed, is also possible to be mechanically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.
Embodiment 1
Artificial blood vessel as shown in Figs 1-4, including outer blood vessel 1, the outer blood vessel 1, which is nested with, is provided with internal layer blood vessel
2,1 inner wall of outer blood vessel is equipped with the junction 3 being connected with internal layer blood vessel 2, passes through the outer blood vessel 1 and internal layer blood vessel of nesting setting
2, when carrying out artificial blood vessel's replacement or connection, outer blood vessel 1 is carried out with autologous vein or other artificial blood vessels it is identical, even if
Be sewn on outer blood vessel 1 with suture, and 2 length of internal layer blood vessel surmounts previous anastomotic, due to internal layer blood vessel 2 by junction 3 with
Outer blood vessel 1 is connected, and when blood flows through internal layer blood vessel 2, blood is flowed from internal layer blood vessel 2, and internal layer blood vessel 2 is made in blood stream pressure
Be affixed to previous anastomotic under, to previous anastomotic and suture pinprick play closing, isolation, contention effect, thus reach prevent previous anastomotic and
The effect of sewing needle ophthalmorrhagia.
The junction 3 is connected with one end of internal layer blood vessel 2, by by one end of internal layer blood vessel 2 and 1 phase of outer blood vessel
Even, other parts separate with outer blood vessel 1, not only coincide convenient for outer blood vessel 1 and autologous vein or artificial blood vessel, but also can will be interior
Layer blood vessel 2 is fixed, and guidance blood flow makes internal layer blood vessel 2 be affixed to previous anastomotic by internal layer blood vessel 2, to previous anastomotic and suture pinprick into
Row closing, isolation, compressing, to achieve the purpose that hemostasis.
The length of the internal layer blood vessel 2 is greater than the length for identical outer blood vessel 1, i.e. 2 length of internal layer blood vessel surmounts
Previous anastomotic, the length that the length of internal layer blood vessel 2 is greater than the outer blood vessel 1 at the end that coincide ensure that the identical rear internal layer blood of outer blood vessel 1
Pipe 2 can completely close previous anastomotic.
The diameter of the internal layer blood vessel 2 is less than the diameter of outer blood vessel 1, and the outer diameter of internal layer blood vessel 2 is approximately equal to outer blood vessel 1
Internal diameter, it is therefore an objective to be bonded internal layer blood vessel 2 with outer blood vessel 1 closely.
The material of the outer blood vessel 1 and internal layer blood vessel 2 is biocompatible materials, including polyurethane and extruding poly- four
Any one in vinyl fluoride, polyurethane and expanded polytetrafluoroethylsealing not only meet the requirement of mechanical property, but also compatibility is good,
It is not susceptible to rejection.
Embodiment 2
As shown in figure 5, the present embodiment difference from example 1 is that, the junction 3 in internal layer blood vessel 2
Between be connected, 1 both ends of outer blood vessel can coincide.
Artificial blood vessel of the invention can also cut off as bilayer patch mesh, repair defect materials'use as blood vessel etc., such as
It is used when aortic sinus of being expert at replacement or repairing (such as DAVID operation).
Working principle is as follows: when carrying out artificial blood vessel's replacement or connection, by outer blood vessel 1 and autologous vein or other people
Work blood vessel carries out identical, i.e., is sewn on outer blood vessel 1 using suture, and internal layer length of vessel surmounts previous anastomotic.Due to internal layer
Blood vessel 2 is connected by junction 3 with outer blood vessel 1, and blood is flowed from internal layer blood vessel 2, and internal layer blood vessel 2 is under blood stream pressure effect
It is affixed to previous anastomotic, closing, isolation, contention effect are played to previous anastomotic and suture pinprick, so that reaching prevents Anastomotic bleeding
Effect.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. a kind of artificial blood vessel, including outer blood vessel 1, it is characterised in that: the outer blood vessel (1), which is nested with, is provided with internal layer blood
It manages (2), outer blood vessel (1) inner wall is equipped with the junction (3) being connected with internal layer blood vessel (2).
2. artificial blood vessel according to claim 1, it is characterised in that: one end of the junction (3) and internal layer blood vessel (2)
It is connected.
3. artificial blood vessel according to claim 1 or 2, it is characterised in that: the length of the internal layer blood vessel (2), which is greater than, to be used for
The length of identical outer blood vessel (1).
4. artificial blood vessel according to claim 3, it is characterised in that: the diameter of the internal layer blood vessel (2) is less than outer layer blood
Manage the diameter of (1).
5. artificial blood vessel according to claim 1, it is characterised in that: the centre of the junction (3) and internal layer blood vessel (2)
It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910177069.4A CN109893293B (en) | 2019-03-08 | 2019-03-08 | Artificial blood vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910177069.4A CN109893293B (en) | 2019-03-08 | 2019-03-08 | Artificial blood vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109893293A true CN109893293A (en) | 2019-06-18 |
| CN109893293B CN109893293B (en) | 2021-08-31 |
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ID=66946690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910177069.4A Active CN109893293B (en) | 2019-03-08 | 2019-03-08 | Artificial blood vessel |
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| CN (1) | CN109893293B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110960281A (en) * | 2019-11-29 | 2020-04-07 | 上海畅迪医疗科技有限公司 | Blood vessel sling in operation with skin-core structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100256745A1 (en) * | 2005-03-25 | 2010-10-07 | Scimed Life Systems, Inc. | Variable length endovascular graft prosthesis adapted to prevent endoleaks |
| US20130071550A1 (en) * | 2004-08-31 | 2013-03-21 | C. R. Bard, Inc. | Self-Sealing PTFE Graft with Kink Resistance |
| CN101883539B (en) * | 2007-10-11 | 2013-12-04 | 米卢克斯控股股份有限公司 | Implantable tissue connector |
| CN104394798A (en) * | 2012-04-23 | 2015-03-04 | 夏洛特-梅克伦堡医院(商业用名:卡罗来纳保健系统) | Hybrid graft for therapy of aortic pathology and associated method |
| EP3106135A1 (en) * | 2014-03-28 | 2016-12-21 | S&G Biotech, Inc. | Stent for preventing reverse flow |
| CN108066044A (en) * | 2016-11-07 | 2018-05-25 | 大连科万维医疗科技有限公司 | There is the accommodating intraocular blood vessel of anti-bleeding |
-
2019
- 2019-03-08 CN CN201910177069.4A patent/CN109893293B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130071550A1 (en) * | 2004-08-31 | 2013-03-21 | C. R. Bard, Inc. | Self-Sealing PTFE Graft with Kink Resistance |
| US20100256745A1 (en) * | 2005-03-25 | 2010-10-07 | Scimed Life Systems, Inc. | Variable length endovascular graft prosthesis adapted to prevent endoleaks |
| CN101883539B (en) * | 2007-10-11 | 2013-12-04 | 米卢克斯控股股份有限公司 | Implantable tissue connector |
| CN104394798A (en) * | 2012-04-23 | 2015-03-04 | 夏洛特-梅克伦堡医院(商业用名:卡罗来纳保健系统) | Hybrid graft for therapy of aortic pathology and associated method |
| EP3106135A1 (en) * | 2014-03-28 | 2016-12-21 | S&G Biotech, Inc. | Stent for preventing reverse flow |
| CN108066044A (en) * | 2016-11-07 | 2018-05-25 | 大连科万维医疗科技有限公司 | There is the accommodating intraocular blood vessel of anti-bleeding |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110960281A (en) * | 2019-11-29 | 2020-04-07 | 上海畅迪医疗科技有限公司 | Blood vessel sling in operation with skin-core structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109893293B (en) | 2021-08-31 |
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