CN101312695A - Bifurcated balloon and stent - Google Patents
Bifurcated balloon and stent Download PDFInfo
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- CN101312695A CN101312695A CNA2006800433266A CN200680043326A CN101312695A CN 101312695 A CN101312695 A CN 101312695A CN A2006800433266 A CNA2006800433266 A CN A2006800433266A CN 200680043326 A CN200680043326 A CN 200680043326A CN 101312695 A CN101312695 A CN 101312695A
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Abstract
A stent (22) for the treatment of a vascular bifurcation includes a distal member (40) and a proximal member (42), the distal member and the proximal member comprising tubular bodies, the distal member comprising first struts (64, 66) oriented in the proximal direction and the proximal member including second struts (54, 56) oriented in the distal direction, such that at least one of the first struts is connected to at least one of the second struts on a first side of the stent (46), while on a second side (48) of the stent, opposite the first side, one or more of the first struts are unconnected to any of the second struts and one or more of the second struts are unconnected to any of the first struts.
Description
The cross reference of related application
The application requires U.S. Provisional Patent Application 60/750,024 that the U.S. Provisional Patent Application 60/719,737 submitted in 21st with JIUYUE in 2005 and December in 2005 submitted on the 12nd as priority, and these two applications are hereby incorporated by.The application is relevant with the PCT patent disclosure WO2005/041810A2 that submitted on November 2nd, 2004, and this patent application is transferred to the assignee of the present patent application and is hereby incorporated by.
Technical field
The present invention relates in general to the catheterization of blood vessel, relates more specifically to endovascular sacculus and support.
Background technology
Endovascular support is used to multiple use, comprises the blood vessel of opening thromboembolism.Usually, provide the support of narrow shrink form, in support, hold the sacculus of venting.Support and sacculus are fixed on the far-end of catheter.The operator inserts lead in the blood vessel, and catheter is slided on line so that support is positioned at the appropriate location.Make inflation by the passage in the catheter afterwards, impel support to expand to be fixed on the appropriate location and to keep vascular patency.In case support is spreading, then sacculus is exitted and is removed from blood vessel with catheter.
Support can be positioned at the branch location that two blood vessels intersect.The above-mentioned PCT patent disclosure WO2005/041810A2 that mentions has described the device that is used to handle vessel branch.Be formed at the unfolded sacculus of bifurcation and comprise two parts, main longitudinal component and protuberance.When sacculus did not expand, protuberance can fold and connect main portion or be contained in the main portion.When the sacculus demi-inflation, protuberance is convenient to the aligning of sacculus in branch location.Support with side opening can be assemblied on the main portion and be located such that protuberance stretches in the vascellum laterale by side opening when inflation.
Support can be positioned to support main blood vessel and the vascellum laterale from the branch point bifurcated.Have Y shape and a localized by this way support from known in the state of the art.For example, described a kind of branch's support with first and second interconnection circuit matrixs in the United States Patent (USP) 4,994,071 that MacGregor and disclosed content be hereby incorporated by authorizing, each matrix defines independent fluid flow passages.The flexible member bending of connection matrix is to limit the angle between the flow passage.Matrix time expansion in being placed on main blood vessel.
Described a kind of method that is used to send branch's catheter authorizing in the United States Patent (USP) 6,210,380 that Mauch and disclosure be hereby incorporated by, described catheter has two branch roads of carrying Y shape support.Adapter is installed in the far-end of two branch roads, and branch road is fixed together is positioned at branch location until catheter thus.When catheter is positioned at branch location, branch road is positioned in the main blood vessel and another branch road when being arranged in vascellum laterale, adopts two sacculus that Y shape support is expanded.
The method that a kind of support that is used for having side opening is positioned at vessel branch has been described authorizing in the United States Patent (USP) 6,210,429 that people such as Vardi and disclosure be hereby incorporated by.Side opening can by with the integrally formed expansible part of rack body around.In the process of locating support, expansible part flushes with rack body.Support is positioned such that side opening aims at the branch vessel mouth.Support is by first balloon expandable, and expansible part is subsequently by second inflation, and described second sacculus passes side opening and stretches in the branch vessel.Afterwards, second support can pass side opening and is positioned in the branch vessel.
Summary of the invention
Embodiments of the present invention provide the novel method that is used to handle vessel branch, and the support that adopts in this processing method, sacculus and accessory.(term " branch " in this employing refers to the crossing zone of two blood vessels and comprises the blood vessel mouth).These methods make the doctor can be especially locating support accurately and easily.
Therefore, a kind of support that is used to handle vessel branch is provided according to the embodiment of the present invention, comprise distal end member and proximal members, distal end member and proximal members comprise tubular body, distal end member comprises that first strut and the proximal members that are oriented in proximal direction comprise second strut that is oriented on the distal direction, in the strut of winning at least one linked to each other with in second strut at least one in first side of support, simultaneously in second side of the support relative with first side, one or more in first strut do not link to each other with any second strut and second strut in one or morely do not link to each other with any first strut.
Usually, disjunct first and second struts are overlapping, and support is in the not linearity configuration of expansion simultaneously.
Described first side comprise substantially joint and when support at the vessel branch place when main blood vessel moves in the vascellum laterale, support operationally along joint away from the described second lateral bending song.Disjunct first strut can comprise the restriction portion of disjunct second strut, and forces disjunct second strut response support to move in the vascellum laterale and to the first lateral bending song by described restriction portion.In some embodiments, disjunct first strut operationally responds the further bending of support and discharges the restriction portion of disjunct second strut.Alternatively or in addition, disjunct first strut operationally responds the expansion of support and discharges the restriction portion of disjunct second strut.
The response be moved in the vascellum laterale, support is operationally finished expansion usually, thus impel disjunct second strut to support the wall relative of main blood vessel with vascellum laterale and impel disjunct first strut support main blood vessel away from ramose wall.In some embodiments, by the sacculus that comprises main body and protuberance support is operationally expanded, the shape of main body is designed to when when expansion crooked in branch, and the shape of protuberance be designed to when expansion along the axis of main blood vessel outstanding and stretch into main blood vessel away from ramose part in.Protuberance operationally make disjunct first strut against main blood vessel away from ramose wall bending.
A kind of method that is used to make the support of handling vessel branch also also is provided according to the embodiment of the present invention, comprises:
The far-end and the proximal members that comprise tubular body are provided, and distal end member comprises that first strut and the proximal members that are oriented on the proximal direction comprise second strut that is oriented on the distal direction; And
In first strut at least one linked to each other with at least one first side at support in second strut, simultaneously second side at the support relative with first side does not make one or more and any second struts in first strut link to each other, and one or more in second strut are linked to each other with any first strut in second side.
In some embodiments, one or more disjunct second strut of one or more disjunct first strut of second side and second side is overlapping.
A kind of method that is used to handle vessel branch also is provided according to the embodiment of the present invention, and described vessel branch has the vascellum laterale with main vascular bifurcation, and described method comprises:
To comprise in the main blood vessel of support importing near vascellum laterale of distal end member and proximal members, distal end member and proximal members comprise tubular body, distal end member comprises that first strut and the proximal members that are oriented on the proximal direction comprise second strut that is oriented on the distal direction, wherein at least one in first strut links to each other with in second strut at least one in first side of support, and in second side relative with first side, one or more in first strut do not link to each other with any second strut and second strut in one or morely do not link to each other with any first strut;
Support is advanced in the vascellum laterale, make first side of support obtain bending, distal end member is positioned partially in the vascellum laterale simultaneously, and second side of support deviates from vascellum laterale;
Make the support expansion to support the part of main blood vessel and vascellum laterale; And
Make the disjunct first strut bending to support another part of main blood vessel away from vessel branch.
In some embodiments, the described step away from another part of vessel branch that supports main blood vessel comprises the part of support side blood vessel mouth.
The method that is used to handle can be included on the sacculus with main body and protuberance and carry support, the step of support expansion is comprised makes main body expand into expansion shape crooked in branch, and the step of the disjunct first strut bending is comprised protuberance is expanded away from branch along the axis of main blood vessel.
A kind of method that is used to handle vessel branch also is provided according to the embodiment of the present invention, and described vessel branch has the vascellum laterale away from main vessels axis bifurcated, and described method comprises:
To have in the main blood vessel of sacculus importing near vascellum laterale of main body and protuberance;
Advance in the vascellum laterale with making main part, make protuberance towards main blood vessel away from a ramose part;
Make the main body expansion, thereby impel main body to be presented on expansion shape crooked in the branch; And
Make protuberance expansion, thus impel protuberance along main vessels axis stretch into main blood vessel away from the ramose part.
In some embodiments, main body carrying support.Support can comprise distal end member and proximal members, distal end member and proximal members comprise tubular body, distal end member comprises that first strut and the proximal members that are oriented on the proximal direction comprise second strut that is oriented on the distal direction, in the strut of winning at least one linked to each other with in second strut at least one in first side of support, while is in second side of the support relative with first side, one or more in first strut do not link to each other with any second strut, and one or more in second strut do not link to each other with any first strut.The step of carrying support comprises protuberance is oriented second side towards support.Advance to step in the vascellum laterale with making main part and comprise support is advanced in the vascellum laterale, make first side of support obtain bending, distal end member is positioned partially in the vascellum laterale and second side deviates from vascellum laterale simultaneously.The main body expansion is comprised make the support expansion to support the part of main blood vessel and vascellum laterale.Protuberance expansion is comprised make disjunct first strut against main blood vessel away from ramose wall bending.
Description of drawings
From below in conjunction with accompanying drawing to will more at large recognizing the present invention the detailed description of embodiment of the present invention, among the figure:
Figure 1A-1C is the sketch map of system that is used to handle vessel branch according to embodiment of the present invention;
Fig. 2 A-2F is the illustration and the sketch map of support element that is designed to handle vessel branch according to embodiment of the present invention;
Fig. 3 A and 3B are the sketch maps according to the support that is in the vessel branch place of embodiment of the present invention; And
Fig. 4 A-4C is the sketch map of another system that is used to handle vessel branch according to embodiment of the present invention.
The specific embodiment
Referring now to Figure 1A-1C, they are the sketch maps of operating procedure of system 20 that are used to handle vessel branch according to embodiment of the present invention.Figure 1A is the sketch map that inserts the support 22 in the blood vessel (hereinafter being called as main blood vessel 24).Support 22 twists usually on sacculus 30, and sacculus 30 links to each other with the far-end of catheter 28.Usually, sacculus 30 is configured to inflatable tube chamber.Alternatively or in addition, the specific part of sacculus 30 or sacculus 30 example protuberance 32 as described further below (Figure 1B) is configured to by for example contained spring expansion of machinery.
Lead 36 imports in the vascellum laterale 26 from main blood vessel, and catheter 28 is positioned such that on lead 36 lead 36 extends through the length of sacculus 30.Hereinafter, the length of sacculus 30 slides over guidewire 36 is called as the main body of sacculus 30.
Figure 1B is the sketch map according to the support 22 of the system that is positioned at the vessel branch place 20 of embodiment of the present invention.Support 22 comprises two elements, distal end member 40 and proximal members 42.The step that support 22 is positioned in the vessel branch comprises that mobile catheter 28 is in the vascellum laterale until the distal end member 40 of support, and proximal members 42 is in the main blood vessel 24 simultaneously.The process that support is moved in the vascellum laterale causes support to locate bending at the abutment (hereinafter being called as joint 44) that connects far-end and proximal members.Joint 44 comprises the strut (Fig. 2 A-2E) of the one or more supports 22 that hereinafter further describe.The bending of support 22 causes the axis alignment of protuberance 32 along main blood vessel 24, towards main blood vessel 24 away from ramose extension.Bending also makes hereinafter opening with the vascellum laterale 26 relative wall section 34 of the distal portions of the proximal members 42 that further describes (Fig. 2 B) near main blood vessel.
Fig. 1 C is the sketch map that is expanded to the supporting part of vessel branch according to the support 22 of embodiment of the present invention.The main body of sacculus 30 is manufactured into and expand into curved shape, can customize described shape away from main blood vessel 24 bifurcated angulations according to vascellum laterale 26.The expansion of sacculus 30 also makes protuberance 32 expansion, like this protuberance enter main blood vessel away from a ramose part.
Sacculus 30 is positioned in the support 22, makes the recessed side of inflation bending section be positioned to against joint 44.The sacculus 30 that will have bending section is also located protuberance 22 towards the joint side location towards a side relative with joint (Fig. 2 A) of support.When support 22 is expanded fully, the strut of support 22 can support the approaching ramose several sections of vascular system, comprise: the mouth away from ramose wall and vascellum laterale of the approaching ramose wall of main blood vessel (above being called as wall section 34 (Figure 1B)), vascellum laterale, the distal portions that comprises the blood vessel mouth is illustrated as ramose wall section 35.
Fig. 2 A-2F is illustration and the sketch map according to the support 22 that comprises distal end member 40 and proximal members 42 of embodiment of the present invention.Fig. 2 A is the sketch map of support 22 before support is positioned at vessel branch.Support 22 has linear, tubular shape and comprises proximal members 42 and distal end member 40.Joint 44 connects two elements in the joint side 46 of support 22.In the relative side of support side 48 just, overlapping from the strut that proximal members and distal end member are extended, this point further describes hereinafter.
Fig. 2 B and 2C represent proximal members 42 and distal end member 40 respectively, and they look as support 22 at joint 44 places separately.Should be realized that in the application of support 22, element 40 and 42 is not isolating.In addition, although can comprising, the manufacturing of support 22 connects two or more different pieces (for example by soldered elements 40 and 42 at joint 44 places, perhaps by making the strut interconnection of different piece), but the present invention is not limited to make this embodiment of strut by two or more different elements.
Fig. 2 B is the sketch map of proximal members 42, and it comprises tubular body portion 50.Shown in the also described hereinafter Fig. 2 D of element 42.According to support manufacturing method well known in the prior art, main part 50 generally includes interconnection or staggered strut matrix.At the far-end 52 of proximal members 42, strut 54 in groups and 56 extends from the main part 50 that is oriented in distal direction separately.Link to each other with strut on the distal end member 40 at the strut 54 of support 22 joint side.Support 22 relative sides just the strut 56 of side 48 (Fig. 2 A) do not obtain connecting.
Fig. 2 C is the sketch map of distal end member 40, and it comprises tubular body portion 60.Shown in Fig. 2 E that element 40 is also described hereinafter.Main part 60 generally includes interconnection or staggered strut matrix.At the near-end 62 of distal end member 40, strut 64 and 66 in groups extends from main part at proximal direction separately.Strut 64 links to each other with the strut 54 of proximal members 42 at joint 44 places, to form the joint side 46 of support.Should be realized that it is sharply crooked that support 22 can be formed at joint 44 places, perhaps crooked gradually along all or part of of joint side 46.Strut 66 is connected with strut 56 but is overlapping to form the side 48 of support 22.
Fig. 2 D and 2E are respectively the sketch maps of proximal members 42 and distal end member 40. Tubular body portion 50 and 60 is illustrated as big block.In Fig. 2 D, strut 56 is represented by the thinner block at the far-end 52 of proximal members 42.Strut 56 can comprise the part of local tubular, the part of its supporting blood vessel inner periphery.One or more connecting rods 58 are connected to strut 56 on the main part 50, when support 22 bendings the far-end 52 of proximal members can be curved inwardly towards joint 44 thus.In Fig. 2 E, strut 64 and 66 is illustrated in proximal direction and extends from the main part 60 of element 40.
Fig. 2 F is the sketch map of support 22, and wherein the structure of proximal members 42 and distal end member 40 is illustrated in the complete construction of support 22 and is bonded together, shown in the illustration among Figure 1A.Fig. 2 F represents the proximal struts 66 of distal end member 40 and the far-end strut 56 eclipsed modes of proximal members 42.Strut 56 is positioned at inside with respect to strut 66 substantially, makes strut 56 extend in the main part 60.In the alternative, strut 54,64,56 and 66 can be configured to longer or shorter than shown in Fig. 2 F.The relative length of these struts has determined overlapping on the side 48 of support 22 of near-end and distal end member.For example, longer although strut 56 is illustrated as than the length overall of strut 54 and 64, make strut 56 stretch in the main part 60, strut 56 can shorter relatively and not stretch in the main part 60.On the contrary, strut 54 and 64 can be shorter, makes strut 56 be completely contained in the main part 60.Strut 66 also can than shown in longer, make that the part of they and main part 50 is overlapping.
Fig. 3 A and 3B are the sketch map of support 22 when this support is positioned at main blood vessel 24 and vascellum laterale 26 bifurcation according to embodiment of the present invention.The sketch map that Fig. 3 A is a support 22 when initial movable is in the vascellum laterale 26.Shown in Figure 1B, distal end member 40 moves in the vascellum laterale as mentioned, impels support 22 in joint 44 places bending.Support 22 also causes side 48 to be located to the vascellum laterale bending at connecting rod 58 (Fig. 2 D) at the initial bending of joint side 46.Strut 56 and 66 remains on the side 48 of support with overlay structure, and strut 56 is limited to strut 66 in the circumference of support 22 simultaneously.
Fig. 3 B is support 22 is positioned at bifurcation after strut 56 obtains discharging from the restriction of strut 66 a sketch map.Differentially expanding by sacculus 30 (comprising the expansion that the expansion because of protuberance 32 causes) can impel strut 56 to be discharged from the restriction of strut 66 and stretch to the distal direction of main blood vessel.Alternatively, strut 56 can obtain discharging because of the further bending of support 22 in vascellum laterale 26.
After strut 56 discharges, further be pressed against by protuberance 32 and impel the distal direction back bending of strut 66 on the strut 66 to main blood vessel.
At shown in Fig. 1 C, the further expansion of sacculus 30 impels support 22 to open against the wall of the vascellum laterale of advocating peace as mentioned.Strut 56 expansions are to support the section 34 relative with branch (Figure 1B) of main blood vessel wall.According to the length of strut 56, these struts can also support the part away from section 34 (Figure 1B) of main blood vessel wall.The expansion of support 22 also is pushed against strut 66 on the distal portions of the vascellum laterale mouth that is illustrated as wall section 35 among Fig. 1 C.According to the length of strut 66, these struts can also support the part away from section 35 of main blood vessel wall.
Fig. 4 A-4C is the sketch map of system 80 that is used to handle vessel branch according to embodiment of the present invention.System 80 has and is used to handle ramose sacculus 30, but does not have support.The operation of sacculus 30 in system 80 is to above (Figure 1A-1C) described mode is similar at system 20.
Fig. 4 A is according to above described operation makes sacculus 30 pass the sketch map that main blood vessel 24 inserts along lead 36 and 38 at Figure 1A.Lead 36 extends through the length of sacculus 30 and imports in the vascellum laterale 26 from main blood vessel.Lead 38 passes main blood vessel 24 guiding by branch, passes protuberance 32 simultaneously and comes out from sacculus 30.Before expansion, protuberance 32 can be folded in the main body of sacculus 30, or is resisted against maintenance compactness on the main body side.The multiple structure of not expanding protuberance that is used for catheter balloon has been described in above-mentioned PCT patent disclosure WO2005/041810A2.
In the unexpanded while, sacculus 30 moves in the vascellum laterale 26 along lead 36, impels sacculus 30 bendings thus.The bending of sacculus 30 is aimed at protuberance 32 at the exit point of lead 38 along the axis of main blood vessel 24.
Fig. 4 B be in sacculus 30 inserting side blood vessels 26 after the sketch maps of 30 expansible starting stages of sacculus.As shown in the figure, protuberance 32 begins to extend from the section of sacculus 30 1 sides, in the distal direction process branch of main blood vessel 24.The expansion of sacculus 30 continues to expand to be full of ramose vascular system, shown in Fig. 4 C until the main body of sacculus and protuberance usually.Sacculus 30 expansible main bodys mentioned above have curved shape.This curved shape can be customized to vascellum laterale 26 and mate away from main blood vessel 24 bifurcated angulations.
Although relating generally to, embodiment mentioned above is used for certain support that blood vessel handles and the enforcement of sacculus, but the support that adopts in these embodiments and the principle of sacculus can be applied to the catheter of other type equally, for example be configured to have the catheter of self expandable support, and the processing based on sacculus that can be applied to other health mouth of pipe.Thereby should be realized that embodiment mentioned above mode by way of example proposes, and the present invention be not limited to above specifically shown in and described content.On the contrary, scope of the present invention comprises various combination of features and recombinant mentioned above, and distortion and revise, and these distortion and modification are that those skilled in the art can make when reading above description and do not obtain disclosed in the prior art.
Claims (17)
1. support that is used to handle vessel branch, comprise distal end member and proximal members, distal end member and proximal members comprise tubular body, distal end member comprises that first strut and the proximal members that are oriented in proximal direction comprise second strut that is oriented on the distal direction, wherein at least one in first strut links to each other with in second strut at least one in first side of support, simultaneously in second side of the support relative with first side, one or more in first strut do not link to each other with any second strut and second strut in one or morely do not link to each other with any first strut.
2. support as claimed in claim 1 is characterized in that, described disjunct first and second struts are overlapping, and support is in the not linearity configuration of expansion simultaneously.
3. support as claimed in claim 1 is characterized in that, described first side comprise joint and when support at the vessel branch place when main blood vessel moves in the vascellum laterale, support operationally along joint away from the described second lateral bending song.
4. support as claimed in claim 3, it is characterized in that, described disjunct first strut comprises the restriction portion of disjunct second strut, and forces disjunct second strut response support to move in the vascellum laterale and to the first lateral bending song by described restriction portion.
5. support as claimed in claim 4 is characterized in that, described disjunct first strut operationally responds the further bending of support and discharges the restriction portion of disjunct second strut.
6. support as claimed in claim 4 is characterized in that, described disjunct first strut operationally responds the expansion of support and discharges the restriction portion of disjunct second strut.
7. support as claimed in claim 3, it is characterized in that, in response to being moved in the vascellum laterale, support is operationally expanded, and respond this expansion, described disjunct second strut supports the wall relative with vascellum laterale of main blood vessel, disjunct first strut support main blood vessel away from ramose wall.
8. support as claimed in claim 7, it is characterized in that, by the sacculus that comprises main body and protuberance support is operationally expanded, the shape of main body is designed to when when expansion crooked in branch, and the shape of protuberance be designed to when expansion along the axis of main blood vessel outstanding and stretch into main blood vessel away from ramose part in.
9. support as claimed in claim 8 is characterized in that, described protuberance operationally make disjunct first strut against main blood vessel away from ramose wall bending.
10. a manufacturing is used to handle the method for the support of vessel branch, comprising:
The far-end and the proximal members that comprise tubular body are provided, and distal end member comprises and is oriented in first strut on the proximal direction and proximal members comprises second strut that is oriented on the distal direction; And
In first strut at least one linked to each other with at least one first side at support in second strut, simultaneously second side at the support relative with first side does not make one or more and any second struts in first strut link to each other, and one or more in second strut are linked to each other with any first strut in second side.
11. method as claimed in claim 9 is characterized in that, comprises that also one or more disjunct first strut and one or more disjunct second strut on second side that make on second side are overlapping.
12. a method that is used to handle vessel branch, described vessel branch has the vascellum laterale from main vascular bifurcation, and described method comprises:
To comprise in the main blood vessel of support importing near vascellum laterale of distal end member and proximal members, distal end member and proximal members comprise tubular body, distal end member comprises and is oriented in first strut on the proximal direction and proximal members comprises second strut that is oriented on the distal direction, wherein at least one in first strut links to each other with in second strut at least one in first side of support, simultaneously in second side relative with first side, one or more in first strut do not link to each other with any second strut and second strut in one or morely do not link to each other with any first strut;
Support is advanced in the vascellum laterale, make first side of support obtain bending, distal end member is positioned partially in the vascellum laterale simultaneously, and second side of support deviates from vascellum laterale;
Make the support expansion to support the part of main blood vessel and vascellum laterale; And
Make the disjunct first strut bending to support another part of main blood vessel away from vessel branch.
13. method as claimed in claim 12 is characterized in that, the step away from another part of vessel branch that supports main blood vessel comprises the part of support side blood vessel mouth.
14. method as claimed in claim 12, it is characterized in that, also be included on the sacculus with main body and protuberance and carry support, the step of support expansion is comprised makes main body expand into expansion shape crooked in branch, and the step of the disjunct first strut bending is comprised protuberance is expanded away from branch along the axis of main blood vessel.
15. a method that is used to handle vessel branch, described vessel branch has the vascellum laterale away from main vessels axis bifurcated, and described method comprises:
To have in the main blood vessel of sacculus importing near vascellum laterale of main body and protuberance;
Advance in the vascellum laterale with making main part, make protuberance towards main blood vessel away from a ramose part;
Make the main body expansion, thereby impel main body to be presented on expansion shape crooked in the branch; And
Make protuberance expansion, thus impel protuberance along main vessels axis stretch into main blood vessel away from the ramose part.
16. method as claimed in claim 15 is characterized in that, also is included in and carries support on the main body.
17. method as claimed in claim 16, it is characterized in that, described support comprises distal end member and proximal members, distal end member and proximal members comprise tubular body, distal end member comprises and is oriented in first strut on the proximal direction and proximal members comprises second strut that is oriented on the distal direction, wherein at least one in first strut links to each other with in second strut at least one in first side of support, while is in second side of the support relative with first side, one or more in first strut do not link to each other with any second strut, and one or more in second strut do not link to each other with any first strut, and
The step of carrying support comprises protuberance is oriented second side towards support,
Advance to step in the vascellum laterale with making main part and comprise support is advanced in the vascellum laterale, make first side of support obtain bending, distal end member is positioned partially in the vascellum laterale and second side deviates from vascellum laterale simultaneously,
The step of main body expansion is comprised make the support expansion supporting the part of main blood vessel and vascellum laterale, and
The step of protuberance expansion is comprised make disjunct first strut against main blood vessel away from ramose wall bending.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US71973705P | 2005-09-21 | 2005-09-21 | |
| US60/719,737 | 2005-09-21 | ||
| US60/750,024 | 2005-12-12 |
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| CN101312695A true CN101312695A (en) | 2008-11-26 |
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| CNA2006800433266A Pending CN101312695A (en) | 2005-09-21 | 2006-09-21 | Bifurcated balloon and stent |
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| CN105769401A (en) * | 2016-04-28 | 2016-07-20 | 南京医科大学第附属医院 | Special-shaped side branch balloon stent system for bifurcation lesion interventional therapy |
| CN106137486A (en) * | 2016-07-18 | 2016-11-23 | 江苏大学 | A kind of bifurcated sacculus |
| CN108095857A (en) * | 2017-12-18 | 2018-06-01 | 上海脉全医疗器械有限公司 | A kind of biodegradable stent system for crotch vascular lesion |
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| CN105769401A (en) * | 2016-04-28 | 2016-07-20 | 南京医科大学第附属医院 | Special-shaped side branch balloon stent system for bifurcation lesion interventional therapy |
| CN105726179A (en) * | 2016-05-16 | 2016-07-06 | 南京医科大学第一附属医院 | Te-type side branch double-balloon stent system for bifurcation lesion interventional therapy |
| CN105726179B (en) * | 2016-05-16 | 2019-02-15 | 张健 | A kind of double saccule support systems of special type side branch for bifurcated lesions interventional therapy |
| CN106137486A (en) * | 2016-07-18 | 2016-11-23 | 江苏大学 | A kind of bifurcated sacculus |
| CN108095857A (en) * | 2017-12-18 | 2018-06-01 | 上海脉全医疗器械有限公司 | A kind of biodegradable stent system for crotch vascular lesion |
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