CN203493775U

CN203493775U - Artificial blood vessel with built-in supports

Info

Publication number: CN203493775U
Application number: CN201320645605.7U
Authority: CN
Inventors: 李军; 杨康; 熊刚; 王海东
Original assignee: Third Military Medical University TMMU
Current assignee: First Affiliated Hospital of TMMU
Priority date: 2013-10-18
Filing date: 2013-10-18
Publication date: 2014-03-26
Anticipated expiration: 2023-10-18

Abstract

The utility model discloses an artificial blood vessel with built-in supports, wherein the artificial blood vessel is used for surgical operations. The artificial blood vessel comprises an artificial blood vessel body. Inner support rings are arranged at the two ends of the artificial blood vessel body. The inner support rings are sleeved with detachable outer support rings which are matched with the inner support rings. According to the artificial blood vessel with the built-in supports, the two ends of the vessel opening of the artificial blood vessel are respectively provided with the inner support and the outer support, and the artificial blood vessel can be rapidly connected to the human aorta in a lap joint mode through the inner supports and the outer supports; when the artificial blood vessel is used in the vessel surgical operations, the operation time is shortened, bleeding and blood oozing in needle sewn holes are prevented, the probability of complications is lowered, and the curative effect is improved.

Description

Artificial blood vessel with Inner standpipe

Technical field

This utility model belongs to medical instruments field, specifically relates to the artificial blood vessel with Inner standpipe that a kind of surgical operation is used.

Background technology

At present, surgical operation is the primary treatment means of dissection of aorta, artificial blood vessel is the effective method of dissection of aorta shell treatment in application when blood vessel is made bypass surgery, there is following defect in existing artificial blood vessel: the coincideing because usually position is darker of far-end, be difficult to appear, the reason such as interlayer pathological changes is involved, arterial wall fragility is difficult to better stitching, sew up and easily tear, instead flow or leak blood, and then cause severe complication.

Many years ago, have the artificial blood vessel of belt supporting frame abroad, although can need an implantation surgery, but there is following defect: 1) support is fixed on the two ends of blood vessel, length is fixed, and the elongated degree of tremulous pulse painful abdominal mass often could be understood completely in operation, so the first the selection of material of performing the operation cannot, according to state of an illness adjustment, only have many of preparations standby, increased lame member's expense, in China, cannot promote at present; 2) two end supports are thick, and medium vessels pack support gauge size is demarcated with blood vessel diameter, and this is thinner for Asians's blood vessel, and inapplicable.

Summary of the invention

In view of this, the purpose of this utility model is to provide a kind of artificial blood vessel with Inner standpipe, these artificial blood vessel mouth of pipe two ends are provided with inside and outside support, can be by artificial blood vessel quick lap joint on main body aorta by inside and outside support, operation for vascular surgery, reduce operating time and avoid sewing up the going out of pinprick, oozing of blood, reduce the probability of complication, improve curative effect.

In order to achieve the above object, a kind of artificial blood vessel with Inner standpipe of this utility model, comprises artificial blood vessel body, and described artificial blood vessel body two ends are provided with inner support ring, and described inner support ring is set with outward and is mated and dismountable support arm ring.

Further, described inner support ring and support arm ring are all set to broadening formation structure.

Further, described support arm ring inner wall edge is circumferentially provided with lug, nib, and described inner support ring outer wall edge is for holding the groove of lug, nib.

Further, the outer mural margin of described support arm ring is circumferentially provided with lug, nib, and the outer mural margin of described inner support ring radially extends for holding the groove of lug, nib.

Further, described inner support ring and support arm ring edge are provided with arc transition.

Further, the one-body molded body that described artificial blood vessel body is made by expanded PTFE, the one-body molded body that described inner support ring and support arm ring are made by the super bullet of NiTi alloy.

Further, described inner support ring external diameter is 4～12mm, and ring width is 5～60mm.

The beneficial effects of the utility model are:

A kind of artificial blood vessel with Inner standpipe of this utility model is by being provided with inside and outside support at artificial blood vessel mouth of pipe two ends, can be by artificial blood vessel quick lap joint on main body aorta by inside and outside support, operation for vascular surgery, reduce operating time and avoid sewing up the going out of pinprick, oozing of blood, reduce the probability of complication, improve curative effect.

Accompanying drawing explanation

Fig. 1 is that this utility model is with the artificial blood vessel structural representation of Inner standpipe;

Fig. 2 is that this utility model is with the cutaway view of interior a kind of structure of support arm in the artificial blood vessel of Inner standpipe.

Reference numeral: 1-aorta; 2-body; 3-inner support ring; 4-support arm ring; 5-lug, nib; 6-groove.

The specific embodiment

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.

Be illustrated in figure 1 this utility model with the artificial blood vessel structural representation of Inner standpipe, a kind of artificial blood vessel with Inner standpipe of this utility model, comprise artificial blood vessel body 2, described artificial blood vessel body 2 two ends are provided with inner support ring 3, and outer being set with of described inner support ring 3 is mated and dismountable support arm ring 4.

The present embodiment is by being first sleeved on support arm ring 4 on aorta 1, and be supported on aorta 1 inwall by inner support 3, then the support arm ring 4 on mobile aorta 1, support arm ring 4 is closely connected with inner support ring 3, thereby make artificial blood vessel body 2 quick lap joints on aorta 1, this structure is for the operation of vascular surgery, reduce operating time and avoid sewing up the going out of pinprick, oozing of blood, reduce the probability of complication, improve curative effect, inner support ring 3 can be avoided subsiding inside and outside artificial blood vessel simultaneously.

Further, described inner support ring 3 and support arm ring 4 are all set to broadening formation structure, this structure is not only conducive to inner support ring 3 to be sleeved on aorta 1 inwall, and can increase aorta 1 and inner support ring 3 and support arm ring 4 frictional force, avoids aorta wall burst pressure.

Further, described support arm ring 4 inner wall edges are circumferentially provided with lug, nib 5, described inner support ring 3 outer wall edges are circumferentially provided with lug, nib 5 for holding groove 6 or the outer mural margin of described support arm ring 4 of lug, nib 5, the outer mural margin of described inner support ring 3 radially extends for holding the groove 6 of lug, nib 5, be illustrated in figure 2 this utility model with the cutaway view of interior a kind of structure of support arm in the artificial blood vessel of Inner standpipe, the outer mural margin of the preferred described support arm ring 4 of the present embodiment is circumferentially provided with lug, nib 5, the outer mural margin of described inner support ring 3 radially extends for holding the groove 6 of lug, nib 5, this structure is conducive to make support arm ring 4 to be fixed on inner support ring 3, can prevent that aorta 1 from coming off between support arm ring 4 and inner support ring 3, avoid the generation of malpractice.

Further, described inner support ring 3 and support arm ring 4 edges are provided with arc transition, because fragile this structure of aorta wall can reduce aorta wall breakage, avoid hemorrhage or oozing of blood.

Further, the one-body molded body that described artificial blood vessel body 2 is made by expanded PTFE, the one-body molded body that described inner support ring 3 and support arm ring 4 are made by the super bullet of NiTi alloy, this structure meets aorta physiological structure and artificial blood vessel replacement principle.

Further, described inner support ring 3 external diameters are 4～12mm, and ring width is 5-60mm, when this structure is identical for artificial blood vessel and distal aorta, inner support ring 3 are filled in to ligation after 5～10cm in aorta lumen.

Finally explanation is, above preferred embodiment is only unrestricted in order to the technical solution of the utility model to be described, although this utility model is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can to it, make various changes in the form and details, and not depart from this utility model claims limited range.

Claims

1. with an artificial blood vessel for Inner standpipe, comprise artificial blood vessel body, it is characterized in that: described artificial blood vessel body two ends are provided with inner support ring, described inner support ring is set with outward and is mated and dismountable support arm ring.

2. the artificial blood vessel with Inner standpipe as claimed in claim 1, is characterized in that: described inner support ring and support arm ring are all set to broadening formation structure.

3. the artificial blood vessel with Inner standpipe as claimed in claim 2, is characterized in that: described support arm ring inner wall edge is circumferentially provided with lug, nib, and described inner support ring outer wall edge is for holding the groove of lug, nib.

4. the artificial blood vessel with Inner standpipe as claimed in claim 2, is characterized in that: the outer mural margin of described support arm ring is circumferentially provided with lug, nib, and the outer mural margin of described inner support ring radially extends for holding the groove of lug, nib.

5. the artificial blood vessel with Inner standpipe as described in claim 3 or 4, is characterized in that: described inner support ring and support arm ring edge are provided with arc transition.

6. the artificial blood vessel with Inner standpipe as claimed in claim 5, it is characterized in that: the one-body molded body that described artificial blood vessel body is made by expanded PTFE, the one-body molded body that described inner support ring and support arm ring are made by the super bullet of NiTi alloy.

7. the artificial blood vessel with Inner standpipe as claimed in claim 1, is characterized in that: described inner support ring external diameter is 4～12mm, and ring width is 5～60mm.