CN201230914Y

CN201230914Y - Aortic arch bracket type blood vessel

Info

Publication number: CN201230914Y
Application number: CNU2008201186686U
Authority: CN
Inventors: 郭伟
Original assignee: Lifetech Scientific Shenzhen Co Ltd
Current assignee: Lifetech Scientific Shenzhen Co Ltd
Priority date: 2008-05-12
Filing date: 2008-05-30
Publication date: 2009-05-06
Anticipated expiration: 2018-05-30

Abstract

The utility model provides an aortic arch bracket type blood vessel which comprises a trunk and a branch part. The branch part comprises a first ramus, a second ramus and a third ramus; one end of the trunk is respectively provided with the first ramus, the second ramus and the third ramus. The aortic arch bracket type blood vessel also comprises a first module and a second module which are both in tubular shapes and are respectively in socket joint with the second ramus and the third ramus so as to realize ramus blood vessel reconstruction in the coelom. Due to the three ramuses arranged at one end of the trunk, the aortic arch bracket type blood vessels are not influenced mutually to adapt different patients.

Description

The aortic arch stent

Technical field

This utility model relates to the implantable vessel field, but particularly a kind of aorta intervention support type blood vessel.

Background technology

Traditional aortic aneurysm Therapeutic Method is to carry out aortic aneurysm excision and artificial vascular graft, because the operation risk height, some patient is not suitable for carrying out this type of operation, and the endoluminal vascular surgical technic comes out, for such patient provides the treatment possibility.

EVAR treatment aortic aneurysm or dissection of aorta technology ultimate principle are before the Wicresoft: stent is compressed in the induction system, discharge after by induction system they being transported to the vascular lesion position, utilize the elasticity of support self, make the stent expansion, thereby the breach of diseased region such as aneurysm or artery dissection is completely cut off outside the stent chamber, finish reparation vascular lesion.

Prior art is by a kind of separating stent-graft type blood vessel that is used for aorta and aortic arch EVAR, as shown in Figure 1, this separating stent-graft type blood vessel comprises first modules A, second module B and the three module C, wherein first modules A, the second module B include tubular trunk and branch respectively, and three module C only comprises the tubular trunk.First module, second module and three module serial connection mode respectively carry out socket, promptly trunk one end of the second module B and first modules A end that is provided with the A1 of branch carries out socket, and the other end that the end of three module C and the second module B are provided with the B1 of branch carries out socket.Owing to the diameter of separating stent-graft type blood vessel trunk portion is bigger than human aortic bow branch vessel diameter, therefore can combine with stent to fix stent by the intravital aortic arch branch vessel of people.Separating stent-graft type blood vessel is implanted in the aorta shown in Fig. 2, the staggered position of connection between first module and second module is being positioned at right common carotid artery F and innominate artery E open proximal position, if the position distance is short and small between patient's right common carotid artery F and the innominate artery E, each module can't be used at aortic arch G place; The mode that employing is connected in series in proper order between each module has increased the stent length after connecting simultaneously, this requires in long ascending aorta H and aortic arch G working place, the order of each intermodule serial connection has also increased influencing each other to each other simultaneously, increases the probability of internal hemorrhage due to trauma.

The utility model content

This utility model provides a kind of aortic arch stent, and main purpose is to adapt to dissimilar patients, in use can avoid influencing each other between the aortic arch stent each several part simultaneously.

This utility model provides a kind of aortic arch stent, comprises trunk and component, and wherein said branch comprises first branch, second branch and the 3rd branch, is respectively equipped with first branch, second branch and the 3rd branch at an end of described trunk.

Preferably, described aortic arch stent also comprises first module, and described first module is a tubular structure, with the socket of second branch, also is respectively equipped with label at the first module two ends, is used for determining first module and second branch socket position.

Preferably, described aortic arch stent also comprises second module, and described second module is a tubular structure, with the socket of the 3rd branch, also is respectively equipped with label at the second module two ends, is used for determining second module and the 3rd branch socket position.

Preferably, described second module is arc.

Preferably, described first branch is longer than described second branch and described the 3rd branch respectively.

Preferably, described first branch's diameter is greater than second branch, less than the 3rd branch.

Preferably, described first branch, second branch and the 3rd a ramose end, and be provided with label with an end of first branch, the fixed trunk of second branch and the 3rd branch.

Preferably, described label is an X-ray opaque.

Preferably, described trunk one end is provided with the agnail structure, is used for fixing the aortic arch stent.

This utility model is provided with first branch, second branch and the 3rd branch by the same end of an end at trunk, carry out socket with second branch and the 3rd branch respectively by first module and second module, in use can not have influence on other forked workings because of certain branch connects, make simultaneously between each branch tightr, thereby adapt to different patients.

Description of drawings

Fig. 1 is existing stent structural representation;

Fig. 2 is the thoracic aorta sketch map;

Fig. 3 is this utility model first embodiment aortic arch stent sketch map;

Fig. 4 is this utility model second embodiment aortic arch stent sketch map;

Fig. 5 is this utility model second embodiment trunk and branch's schematic cross-section;

Fig. 6 is this utility model the 3rd embodiment first modular structure sketch map;

Fig. 7 is this utility model the 3rd embodiment second modular structure sketch map;

After Fig. 8 is this utility model embodiment second branch and the 3rd branch and first module and the second module socket, the user mode sketch map of aortic arch stent.

The realization of this utility model purpose, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.

The specific embodiment

This utility model is provided with three branches by trunk one end on the aortic arch stent, because three branches are located on the same end of trunk, makes between each branch closelyr, can not influence each other, and can adapt to different patients.

As shown in Figure 3, be this utility model first embodiment aortic arch stent sketch map, described aortic arch stent comprises trunk 10, first branch 11, second branch 12 and the 3rd branch 13, wherein said first branch 11, second branch 12 and the 3rd branch 13 are separately positioned on trunk 10 same ends, and described each branch is communicated with trunk 10 respectively.

In order to further specify the operation principle of this utility model the foregoing description, specify the occupation mode of aortic arch stent.In conjunction with Fig. 2, the aortic arch stent is compressed in the suitable induction system, the aortic arch stent stretches into ascending aorta H by induction system from right subclavian artery D or right common carotid artery F, return and remove induction system, stent launches, trunk 10 places ascending aorta H place, and first branch 11 places in the right common carotid artery F and launches, and second branch 12 and the 3rd branch 13 launch in ascending aorta H respectively.

This utility model embodiment also proposes second embodiment on the basis of first embodiment.As shown in Figure 4 and Figure 5, described first branch 11 diameters are greater than the diameter of second branch 12, diameter less than the 3rd branch 13, the diameter sum of described first branch 11 and the 3rd branch 13 is suitable with the diameter of trunk 10, end at first branch 11, second branch 12, the 3rd branch 13 and trunk 10, and first branch 11, second branch 12 and the 3rd branch 13 and trunk 10 junctions are respectively equipped with the label 14 of X-ray opaque, and the label 14 of described X-ray opaque is used for determining that the aortic arch stent is in the intravital position of patient.The other end at aortic arch stent trunk 10 is provided with a bulge-structure, as the agnail structure, is used for the aortic arch stent is fixed on ascending aorta H.

This utility model embodiment also proposes the 3rd embodiment on the foregoing description basis, described aortic arch stent also comprises first module 1.As shown in Figure 6, be this utility model the 3rd embodiment first module 1 structural representation.Described first module 1 is a tubulose, and first module, 1 one end diameters are less than other end diameter, and first module 1 is carried out socket with described second branch 12, and wherein first module 1 is complementary than an end and second branch, 12 diameters of minor diameter.Be respectively equipped with the label 14 of X-ray opaque at first module, 1 two ends, when being used for determining

first module

1 and 12 sockets of second branch, position between first module 1 and second branch 12.

This utility model the 3rd embodiment also comprises second module 2.As shown in Figure 7, be this utility model the 3rd embodiment second module 2 structural representations.Described second module 2 is a tubulose, is arc, wherein said second module, 2 one end diameters less than with other end diameter, second module 2 is carried out socket with described the 3rd branch 13.Described second module 2 is complementary than an end and the 3rd branch 13 diameters of minor diameter.Be respectively equipped with the label 14 of X-ray opaque at the two ends of described second module 2, be used for determining position between second module 2 and its belled the 3rd branch 13.Other structures of aortic arch stent and annexation are constant.

In order to further specify the operation principle of this utility model the foregoing description, specify the occupation mode of aortic arch stent.Aortic arch stent, first module and second module are compressed in respectively in the suitable induction system, under the supervision of special equipment, by observing the label 14 of X-ray opaque, determine aortic arch stent position by the position of determining label 14.The aortic arch stent is compressed in the suitable induction system, the aortic arch stent stretches into ascending aorta H by induction system from right subclavian artery D or right common carotid artery F, return and remove induction system, stent launches, trunk 10 places ascending aorta H place, first branch 11 places in the right common carotid artery F and launches, and second branch 12 and the 3rd branch 13 launch in ascending aorta H respectively; The agnail structure of the end setting of the trunk 10 on the aortic arch stent makes the aortic arch stent be fixed on ascending aorta H place simultaneously; Insert first module 1 at innominate artery E then, make the smaller diameter end of first module 1 and second branch 12 on the aortic arch stent carry out socket; After femoral artery is inserted second module 2, the 3rd branch 13 on smaller diameter end on second module 2 and the aortic arch stent is carried out socket.Determine label 14 positions of X-ray opaque by special equipment, make socket position between first module 1 and second branch 12 and second module 2 and the 3rd branch 13 all be no more than the label 14 of the X-ray opaque that second branch 12 and second branch 13 and trunk 10 junctions are provided with, thereby finish reparation human body ascending aorta, aortic arch, descending aorta pathological changes.As shown in Figure 8, be second branch 12 and the 3rd branch 13 and first module 1 and 2 sockets of second module after, the user mode of aortic arch stent.

Aortic arch stent described in above-mentioned this utility model embodiment adopts memory alloy wire or cutting metal pipe to make Z type ripple frame member, form different-diameter Z type ripple bracket loop through typing, the Z type ripple bracket loop of same diameter is fixed, and film laying makes Z type ripple bracket loop become first branch, second branch, the 3rd branch and major blood vessel shape.

Because first branch 11, second branch 12 and the 3rd branch 13 are located at trunk 10 same ends respectively, make between each branch tightr, simultaneously first module 1 and second module 2 respectively with the aortic arch stent on second branch 12 and the 3rd branch 13 carry out socket, influence each other between the aortic arch stent when reducing serial connection, adapt to different patients.

The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes this utility model description and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. an aortic arch stent is characterized in that, comprises trunk and component, and wherein said branch comprises first branch, second branch and the 3rd branch, is respectively equipped with first branch, second branch and the 3rd branch at an end of described trunk.

2. aortic arch stent according to claim 1, it is characterized in that, described aortic arch stent also comprises first module, described first module is a tubular structure, with the socket of second branch, also be respectively equipped with label at the first module two ends, be used for determining first module and second branch socket position.

3. aortic arch stent according to claim 1 and 2, it is characterized in that, described aortic arch stent also comprises second module, described second module is a tubular structure, with the socket of the 3rd branch, also be respectively equipped with label at the second module two ends, be used for determining second module and the 3rd branch socket position.

4. aortic arch stent according to claim 3 is characterized in that, described second module is arc.

5. aortic arch stent according to claim 1 is characterized in that, described first branch is longer than described second branch and described the 3rd branch respectively.

6. aortic arch stent according to claim 5 is characterized in that, described first branch's diameter is greater than second branch, less than the 3rd branch.

7. aortic arch stent according to claim 6 is characterized in that, described first branch, second branch and the 3rd a ramose end, and be provided with label with an end of first branch, the fixed trunk of second branch and the 3rd branch.

8. according to claim 3 or 7 described aortic arch stents, it is characterized in that described label X-ray opaque.

9. aortic arch stent according to claim 1 is characterized in that described trunk is provided with the agnail structure, is used for fixing the aortic arch stent.