The installation method and conveying device of holder in artTechnical field
The invention belongs to the field of medical instrument technology, more particularly to a kind of installation sides for tightening and discharging holder in artMethod and method for releasing and conveying device.
Background technology
The aortic disease of aorta ascendens, the arch of aorta and part descending aorta is involved in treatment at present, is to pass through surgeryHolder in implantation, the proximal end docking Four branches aortic graft of holder or straight barrel type artificial blood vessel are to realize to ascending part, drop in artThe treatment of portion and bow portion lesion.Instantly clinical treatment aortic disease is generally using holder elephant trunk technique, principle be inChest is opened in center, and notch is carried out on the arch of aorta, holder in one section of art is then implanted into descending aorta, then the holder in artProximal end connection artificial blood vessel carry out the replacement of aorta ascendens and aortic arch, finally have artificial blood vessel and human body by oneself bloodPipe seam closes.
However, this technology still needs a kind of overlay film frame, and need to plant this holder under surgical conditionsEnter to aortic disease position, thus this overlay film frame is commonly referred to as holder in art.Holder has to by means of conveying in artDevice can just be implanted to corresponding aortic disease position, that is, utilize conveying device to reduce the diameter of holder in art, then defeatedHolder in art is discharged after being sent to the corresponding lesion locations of aorta, finally withdraws from conveying device.
There are many method of holder in assembling art at present, and holder is loaded into outer tube in mainstream art in the market, is then passed throughHolder in art is delivered to lesion locations and then discharged by flexible outer tube；Also have holder binding in art using binding wire at stick-likeIt is then sent to lesion；It is also stick-like one is holder in art is rolled into using coating, then holder in stick-like art is conveyedTo lesion locations.Each product according to self-characteristic, have nothing in common with each other, but needs to reach following effect by binding or assembling modeFruit：1. assembling morphology is good；2. smooth in appearance；3. compliance is good after assembling；4. assembling simple, high in machining efficiency；5. locating effectIt is good.
Wherein, patent US 6352561 and WO95/26695 disclose it is a kind of using coating by overlay film frame tighten and releaseThe method put, holder is tightened and is discharged by the coating having outside overlay film frame by this method, or passes through line or silkTightening is carried out to tighten overlay film frame to coating.Separately there is the patent application No. is 201110133682.X to disclose one kindThe installation of holder and method for releasing in stent conveying device and arch of aorta art in art, the conveying device include coating and and itsThe suture being connected and bracing wire, suture and bracing wire sewing form disengageable connection, holder is received in art on coating with coatingHold together and is wrapped in coating.
Applicants have found that there are the following problems for tightening of the prior art to holder in art：On the one hand it needs holderMetal part is all triggered with line and is bonded with coating suture, is then tightened to coating, the tightening process outside film is moreComplexity, snapping node is more, and error rate is relatively high, low production efficiency；On the other hand, it is combined and is received using suture, bracing wire and coatingTightly, in this structure, suture need to be fixed on coating, and tightening holder is such to reach tightening purpose after being drawstring through sutureOperation needs that suture is fixed on coating in advance, and can be obviously increased according to different length number of sutures, reduces on the wholeProduction efficiency.
Invention content
The purpose of the present invention is to provide a kind of installation method of holder in art and method for releasing and conveying devices, with solutionThe problems such as certainly in art under holder tightening process complexity, error rate height, low production efficiency.
To achieve the above object and other related purposes, described the present invention provides a kind of installation method of holder in artHolder has expansion state and compressive state in art, wherein wrapping up holder in the art using coating and utilizing binding wire describedThe relative side of coating collapses and tightens holder in the art, and the installation method includes：
Step S1：By first first kind through-hole that the first end of the binding wire penetrates on the coating and lay out oneAfter a first kind coil, it is pierced by from first first kind through-hole, then penetrates second first on the coatingIt is pierced by by first Second Type through-hole on the coating after type through-hole, and second be formed directly on the coatingTwo type through-holes and with previous first kind coil snapping formed a Second Type coil after, from second second classType through-hole is pierced by, and is then penetrated after the third Second Type through-hole on the coating by the third first kind on the coatingType through-hole is pierced by；
Step S2：It is removably secured the first kind coil formed at first in step S1；
Step S3：The first end and/or second end for pulling the binding wire collapse the coating and tighten and propped up in the artFrame；
Wherein, the first kind through-hole is oppositely arranged with the Second Type through-hole, and the first end of the binding wireThe axial direction of holder sequentially passes through the first kind through-hole and the Second Type through-hole along the art.
Preferably, in the art in the installation method of holder, the first end of the binding wire is from holder in the artProximal end to distally sequentially passing through the first kind through-hole and the Second Type through-hole.
Preferably, further include step S4 in the art in the installation method of holder：Repeat step S1 at least once,The first end of the binding wire is set to sequentially pass through remaining described first kind through-hole and described from the 4th first kind through-holeSecond Type through-hole, to form at least two first kind coils and at least two Second Type coils；
Wherein, each of in addition to the first kind coil formed at first the first kind coil with it is adjacentThe Second Type coil snapping being initially formed, each Second Type coil with described first adjacent be previously formedType coil snapping, to form multiple fastening structures；
Step S4 is carried out before or after step S2.
Preferably, in the art in the installation method of holder, step S3 complete in step sl threading after and/orIt is carried out in threading process.
Preferably, in the art in the installation method of holder, step S3 further includes by described the of the binding wireTwo ends connect conveying device, by pulling the first end of the binding wire to collapse the coating.
Preferably, in the art in the installation method of holder, holder includes main body rack and setting in the artIn the side branch stent to extend out on the main body rack and to main body rack outside；Opening is provided on the coating,The side branch stent is pierced by from the opening, and the main body rack is wrapped up by the coating.
Further, the present invention separately provides a kind of method for releasing of holder in art, and release is using described in above-mentioned any oneInstallation method and holder, the method for releasing include in the art tightened：
The dismountable fixation of first kind coil formed at first described in releasing, and pull described the of the binding wireTwo ends make in the art holder recover and expand state to unlock the coating.
Preferably, it in the art in the method for releasing of holder, is released described in step S1 by adjusting conveying deviceThe connection relation of the first kind coil and the conveying device that are formed at first is to release dismountable fixation；And pass throughAdjust the second end that the conveying device pulls the binding wire so that the binding wire from the first kind through-hole andIt is extracted out in the Second Type through-hole, holder is made in the art to recover and expand state to unlock the coating.
Preferably, in the art in the method for releasing of holder, the binding wire successively by the art holder it is closeEnd to distal direction detaches the first kind through-hole and the Second Type through-hole.
Further, it invention further provides stent conveying device in a kind of art, is propped up for installing and discharging in the artFrame, holder has expansion state and compressive state in the art, and the conveying device includes coating and binding wire；The coating toolThere are at least three first kind through-holes and at least three Second Type through-holes being oppositely arranged, the first end of the binding wire is along instituteThe axial direction for stating holder in art sequentially passes through the first kind through-hole and the Second Type through-hole；
Wherein, the binding wire is formed with first kind coil at least one first kind through hole, at leastOne Second Type through hole is formed with Second Type coil, and the first kind coil formed at first is removablyIt is fixed in the conveying device, the Second Type coil and the adjacent first kind coil snapping being previously formed；
When installing holder in the art, the packet is collapsed by the first end and/or second end that pull the binding wireThe relative side of film, so that holder is collapsed in compressive state and is wrapped in the coating in the art；
When discharging holder in the art, by releasing the fixed setting of the first kind coil formed at first, andHolder in the art is set to be in expansion state by pulling the second end of the binding wire to unlock the coating.
Preferably, in the art in stent conveying device, the first kind coil is penetrated simultaneously by the binding wireIt is pierced by the same first kind through-hole to constitute, the Second Type coil is threaded in and out the same institute by the binding wireState Second Type through-hole composition.
Preferably, in the art in stent conveying device, the first end of the binding wire penetrates first first kindType through-hole is pierced by after laying out a first kind coil from first first kind through-hole, then penetrates second first kindType through-hole is simultaneously pierced by by first Second Type through-hole, then penetrates second Second Type through-hole and snapping previous described firstIt after type line circle forms a Second Type coil, is pierced by from second Second Type through-hole, then penetrates third theIt is pierced by by third first kind through-hole after two type through-holes.
Preferably, in the art in stent conveying device, the first kind coil and the Second Type coilForm multiple fastening structures；Wherein, the fastening structure include the Second Type coil with it is adjacent be previously formed it is describedFirst kind coil snapping and/or the first kind coil and the adjacent Second Type coil snapping being previously formed.
Preferably, in the art in stent conveying device, the first end of the binding wire is by third described firstAfter type through-hole is pierced by, be based on identical principle, the first end of the binding wire from the 4th first kind through-hole according toIt is secondary to pass through other first kind through-holes and the Second Type through-hole, form at least two first kind coils and extremelyFew two Second Type coils；Wherein, the first kind each of in addition to the first kind coil formed at firstCoil with the adjacent Second Type coil snapping being previously formed, each Second Type coil with it is adjacentThe first kind coil snapping being initially formed forms multiple fastening structures.
Preferably, in the art in stent conveying device, the conveying device further includes operation handle, it is described at firstThe first kind coil of formation and the second end of the binding wire are both secured in the operation handle.
Preferably, in the art in stent conveying device, the distal end of the operation handle is provided with fixed block, describedThe first kind coil formed at first is removably secured with the fixed block.
Preferably, in the art in stent conveying device, the operation handle include shell and be located at the shellThe wire grip of body proximal end, the wire grip and the detachable connection of the shell, and the second end of the binding wire is across describedShell connects the wire grip.
Preferably, in the art in stent conveying device, the first end of the binding wire is from holder in the artProximal end is to distally sequentially passing through the first kind through-hole and the Second Type through-hole.
Preferably, in the art in stent conveying device, the first kind through-hole and the Second Type through-holeRelative side along the coating is symmetrical arranged, and the line of the first kind through-hole on same straight line and is parallel to instituteState the axis direction of holder in art.
Preferably, in the art in stent conveying device, the axis of first kind through-hole holder along the artTo equidistant arrangement.
Preferably, in the art in stent conveying device, holder includes main body rack and is set in the artOn the main body rack and to the side branch stent to extend out on the outside of the main body rack, opening, institute are provided on the coatingIt states side branch stent to be pierced by from the opening, the coating wraps up the main body rack.
In conclusion the installation method of holder and method for releasing and conveying device in the art of the present invention, have following excellentPoint：
The first, due to using only disengageable binding wire, the corresponding coating of binding wire i.e. releasable need to only be extracted out, in turnIt will be located in blood vessel (such as arch of aorta) with branch or without holder release in the art of branch；With in the prior art install art inThe method of holder is compared, using the installation method of the present invention, need to only utilize binding wire sequentially pass through be oppositely arranged on coating it is logicalHole and the coil that fastening structure is formed at partial through holes, and the first kind coil formed at first is removably secured, soIt pulls the first end of binding wire and/or second end that can be tightened to coating afterwards and holder in art is made to be in compressive state, this receiptsTight process is relatively simple, it is not easy to malfunction, production efficiency is high；
The second, using the method for releasing of the present invention, the fixed setting of the first kind coil formed at first need to be only released, andHolder in second end, that is, releasable art of binding wire is pulled, release process is equally simple, easily operated, not error-prone, and efficiencyIt is high；
Holder installation and method for releasing in third, art according to the present invention, when the side branch stent of holder in the art of the present inventionAfter being accurately positioned, the binding wire discharges main body rack from the proximal end of holder in art to distal end sequence, during releaseThe proximal part of main body rack hardly shifts, and the distal portions of main body rack there is apparent natural cripetura notThe side branch stent close to main body rack proximal end can be caused to shift, in this way, avoiding collateral displacement in operation, also avoided at a specified future date collateralThe problems such as discounting or Side branch occlusion, significantly improve the therapeutic effect of aortic disease；
4th, in practical process of binding, after often passing through several through-holes or forming a coil, pulling can be passed throughAt least one end in the both ends of binding wire avoids relatively being difficult to tighten coating after the multiple coils of snapping to tighten coating, because oneHolder is deposited between another aspect binding wire and between binding wire and coating there are outside expansionary force in art in aspect coatingIn frictional force, so, the first end and/or second end for pulling on binding wire are arranged after the completion of threading and/or in threading process,Binding wire is timely and effectively tightened with more convenient.
Description of the drawings
Fig. 1 is the coating of the embodiment of the present invention and the structure principle chart that binding wire is connected；
Fig. 2 be the embodiment of the present invention art in stent conveying device structural schematic diagram；
Fig. 3 be the embodiment of the present invention unilateral branch type art in holder structural schematic diagram；
Fig. 4 be the embodiment of the present invention art in stent conveying device structural schematic diagram, wherein holder in unilateral branch type artIt has been assembled in conveying device；
Fig. 5 be present pre-ferred embodiments art in stent conveying device structural schematic diagram, wherein in unilateral branch type artHolder release is positioned in blood vessel；
Fig. 6 be the embodiment of the present invention unilateral branch type art in holder release be positioned at schematic diagram in aorta, wherein sideThe release of branch holder is positioned in left subclavian artery, and main body rack release is positioned in the arch of aorta.
The reference numerals are as follows：
Stent conveying device in 10- arts；
1- coatings；
121,122,123,124,125,126- first kind through-holes；
111,112,113,114,115,116- Second Type through-holes；
2- binding wires；
21,23- first kind coil；
22,24- Second Types coil；
Holder in 3- arts；
31- main body racks；
32- side branch stents；
33,34- artificial blood vessels；
4- operation handles；
41- shells；
42- wire grips；
5- main body liners；
The collateral liners of 6-；
7- fixed blocks.
Specific implementation mode
To keep present disclosure more clear and easy to understand, below in conjunction in 1~6 pair of art proposed by the present invention of Figure of descriptionThe installation method of holder is described further with method for releasing and conveying device.Certainly the invention is not limited in the specific realitiesExample is applied, general replacement well known to the skilled artisan in the art is also encompassed within the scope of the invention.
Secondly, the present invention has carried out detailed statement using schematic diagram, but these schematic diagrames are only for the purposes of being described in detail this hairBright example, should not be to this restriction as the present invention.If " inside " herein refers to that coating is wrapped in the art on holderWhen close to the direction of coating axis, " outside " refers to the direction far from coating axis.In addition, " axial direction " refers to along art hereinThe direction of middle holder axis.
It is refering to fig. 1 the coating of the embodiment of the present invention and the structure principle chart that binding wire is connected to Fig. 6, Fig. 1, Fig. 2 isThe structural schematic diagram of stent conveying device in the art of the embodiment of the present invention, Fig. 3 be the embodiment of the present invention unilateral branch type art in prop upThe structural schematic diagram of frame, Fig. 4 are the structural schematic diagrams for being equipped with the conveying device of holder in art of the embodiment of the present invention, and Fig. 5 isStent conveying device is for discharging structural schematic diagram when holder in unilateral branch type art, Fig. 6 in the art of present pre-ferred embodimentsBe the embodiment of the present invention unilateral branch type art in holder release be positioned at schematic diagram in aorta.
Stent conveying device in the art of the present invention particularly suitable for conveying and discharges holder in arch of aorta art, in the artHolder has expansion state and compressive state.Hereinafter, using holder in unilateral branch type art as signal, what the present invention will be described in detailIn art in stent conveying device and corresponding art holder installation method and method for releasing, but should not be to be propped up in unilateral branch type artFrame is as limitation of the present invention.
As depicted in figs. 1 and 2, stent conveying device 10 includes coating 1 and binding wire 2 in the art of the present embodiment.It is preferred thatThe coating 1 is in the form of sheets and material is high molecular polymer, such as polyethylene terephthalate (PET).
Wherein, the first kind through-hole being oppositely arranged and Second Type through-hole are offered on the coating 1.The first kindThe quantity of type through-hole and Second Type through-hole is at least three respectively, to ensure that the binding wire of tightening will not unclamp.Wherein, describedThere is binding wire 2 opposite first end and second end, the first end of the binding wire 2 axial direction of holder 3 from art to sequentially pass throughAt least three first kind through-holes and at least three Second Type through-holes.Herein, so-called to refer to 2 edge of the binding wire " successively "One direction is threaded by first first kind through-hole, second first kind through-hole to third first kind through-hole or threadingTo more first kind through-holes, similarly, the binding wire 2 it is corresponding in order by first Second Type through-hole, second secondType through-hole is threaded to third Second Type through-hole or more Second Type through-hole；But it is described herein to be not intended to limit " successively "Threading sequence of the binding wire 2 between first kind through-hole and Second Type through-hole.
The binding wire 2 is formed with first kind coil at least one first kind through hole, at least one secondType through hole is formed with Second Type coil.The first kind coil is threaded in and out same described by binding wire 2One type through-hole is constituted, and the Second Type coil is threaded in and out the same Second Type through-hole by binding wire 2 and constitutes.Moreover, the Second Type coil and the adjacent first kind coil snapping being previously formed, while the first kind formed at firstType coil 21 is removably secured.It should be noted that the direction that binding wire 2 is penetrated to each through-hole herein is defined as directionClose to the direction of 1 axis of coating when the interior direction of coating 1, i.e. coating 1 are wrapped in the art on holder 3；And binding wire 2 is wornThe direction for going out each through-hole is the lateral direction towards coating 1, the i.e. direction far from 1 axis of coating.
Stent conveying device 10 in art based on the present embodiment, the present embodiment also proposed a kind of installation side of holder in artThe method for releasing of holder in method and a kind of art.
As shown in Figure 1, the structure principle chart that the coating that Fig. 1 is the present invention is connected with binding wire, specifically, of the inventionCoating 1 and binding wire 2 realize that the process of holder 3 in tightening art includes：
Step S1：The first end of binding wire 2 is penetrated into first first kind through-hole 121 and lays out a first kind molded lineIt after circle 21, is pierced by, is then penetrated after second first kind through-hole 122 by first the from first first kind through-hole 121Two type through-holes 111 are pierced by, and are formed directly into second Second Type through-hole 112 and are formed one with 21 snapping of first kind coilIt after a Second Type coil 22, is pierced by from second Second Type through-hole 112, then penetrates third Second Type through-hole 113It is pierced by afterwards by third first kind through-hole 123.Herein, so-called " snapping " refers to that a coil is arranged with another coilConnection relation together is fixed in the coil of rear formation by around the coil being previously formed, when what is be previously formedWhen coil is released from fixed, rear formation coil namely be released from fixation.
Step S2：It is removably secured the first kind coil 21 formed at first in step S1.
Step S3：Pull binding wire 2 second end and (or) first end (first end preferably corresponds to the remote of holder 3 in artEnd, and second end preferably corresponds to the proximal end of holder 3 in art), to collapse the relative side of coating 1, and holder 3 in art is made to collapseIn compressive state and it is wrapped in coating 1.
In a preferred embodiment, the action (i.e. step S3) of the first end and (or) second end of binding wire 2 is pulled, is being tied upBinding 2 is implemented to carry out when threading action, and is carried out after completing threading action, is convenient for tightening binding wire in this way.Invention human hairIt is existing, in practical process of binding, after often passing through several through-holes or forming a coil, in the both ends that binding wire can be pulledAt least one end avoids to be difficult to tighten coating after the multiple coils of snapping, this is because in one side coating to tighten coatingArt holder is there are outside expansionary force, and there is also frictional force between another aspect binding wire and between coating, so, it willThe first end and (or) second end for pulling binding wire are arranged after the completion of threading and (or) in threading process, have in time with more convenientEffect ground tightening binding wire.
Wherein, the axially staggered or noninterlace arrangement of at least three first kind through-holes holder 3 along art, preferably equidistantlyArrangement.Accordingly the axial direction of holder 3 can both be interspersed at least three Second Type through-holes along art, can also noninterlace pointCloth, preferably equidistantly distributed.Specifically, at least three first kind through-holes are arranged adjacent to a side of coating 1, at least threeSecond Type through-hole is arranged adjacent to another side of coating 1.
Preferably, the first kind through-hole and Second Type through-hole are symmetrical arranged, the more preferable first kind through-holeLine on same straight line and be parallel to the axis direction of holder 3 in art.
In the present embodiment, the quantity and the quantity of Second Type coil of the first kind coil match, and still, to sayIt is bright, if forming the coil with multiple fastening structures, that is, the quantity of first kind through-hole and Second Type through-hole is distinguishedBe three or more, in addition to the first kind coil formed at first, each first kind coil with adjacent be previously formedTwo type coil snappings, each Second Type coil with the adjacent first kind coil snapping being previously formed, are formed multipleThe fastening structure.However, the present invention does not limit the particular number of fastening structure particularly, can set according to actual needsIt sets and is best effectively to wrap up and tighten holder 3 in art.
Specifically, adjacent first kind coil forms multiple fastening structures, the snapping knot with Second Type coilStructure includes Second Type coil and the adjacent first kind coil snapping being previously formed or first kind coil (shape at firstAt first kind coil except) with the adjacent Second Type coil snapping being previously formed.
The coating 1 and binding wire 2 that further the present invention will be described in detail for needing to form multiple fastening structures belowConnection type, at this point, the coating 1 of the present embodiment and binding wire 2 realize that the process of holder 3 in tightening art further includes：
Step S4：After the first end of the binding wire 2 is pierced by by third first kind through-hole 123, it is based on identical originalReason, the first end of the binding wire 2 sequentially pass through other first kind through-holes and second from the 4th first kind through-hole 124Type through-hole forms at least two first kind coils and at least two Second Type coils；Wherein, except first formed at firstOutside type coil 21, each first kind coil with the adjacent Second Type coil snapping being previously formed, and each secondType coil with the adjacent first kind coil snapping being previously formed, forms multiple fastening structures.At this point, step S4 is in stepIt is carried out before or after rapid S2.
For forming three fastening structures, first, the first end of binding wire 2 is penetrated into first first kind through-holeIt after 121 lay out a first kind coil 21, is pierced by from first first kind through-hole 121, then penetrates second first kindIt is pierced by by first Second Type through-hole 111 after type through-hole 122, is formed directly into second Second Type through-hole 112 and with firstIt after 21 snapping of type coil forms a Second Type coil 22, is pierced by from second Second Type through-hole 112, then penetrates theThree Second Type through-holes 113 are pierced by by third first kind through-hole 123 later, are then formed directly into the 4th first kindType through-hole 124；After the first end of the binding wire 2 penetrates the 4th first kind through-hole 124, at first kind through-hole 124It is pierced by from the 4th first kind through-hole 124 after laying out a first kind coil 23 with 22 snapping of Second Type coil, soAfter penetrate the 5th first kind through-hole 125 after be pierced by by the 4th Second Type through-hole 114, be formed directly into the 5th the second classType through-hole 115 is simultaneously formed after a Second Type coil 24 with 23 snapping of first kind coil from the 5th Second Type through-hole115 are pierced by, and are pierced by by the 6th first kind through-hole 126 after then being penetrated from the 6th Second Type through-hole 116.
In the present embodiment, the first end of the binding wire 2 preferably eventually passes through the 1 distal end (distal end of coating 1 of neighbouring coatingCorresponding to the distal end of holder in art 3) first kind through-hole or Second Type through-hole after stretch out, and in actual application, instituteThe first end for stating binding wire 2 is in free state (i.e. without any restriction relation), so as to the first kind formed at first in releasingAfter the fixed setting of coil 21, the second end of the binding wire 2 is pulled, you can extract binding wire 2 out from coating 1 to release coatingThe tightening of holder in 1 pair of art.
Further, it is based on tightening principle shown in FIG. 1, the release process of holder includes in art of the invention：It releases at firstDismountable fixation of the first kind coil 21 of formation, and the direction indicated by the arrow shown in FIG. 1, pull binding wire 2Second end so that holder 3 is recovered and expanded state to unlock coating 1.
In the present embodiment, as shown in figure 3, holder 3 then includes main body if holder in unilateral branch type art in the art of the present inventionIt holder 31 and is set on main body rack 31 and to the side branch stent 32 that 31 outside of main body rack extends out, the main body branchFrame 31 is positioned at for discharging in descending aorta, and the side branch stent 32 is positioned at for discharging in left subclavian artery.EspeciallyGround, coating 1 of the invention are used to wrap up main body rack 31 and utilize the connection relation tightening main body rack of binding wire 2 and coating 131, moreover, in release art when holder 3, the proximal end of autonomous body support frame 31 is risen to distal end sequence release main body rack 31, in this way, working asAfter the side branch stent 32 of holder 3 is accurately positioned in the art of the present invention, the proximal part of main body rack 31 is several during releaseIt will not shift, and the distal portions of main body rack 31 will not cause there is apparent natural cripetura close to main body rackThe side branch stent 32 of 31 proximal ends shifts, such way, avoids collateral displacement and collateral discounting or collateral at a specified future date in operationThe problems such as occlusion, significantly improves the therapeutic effect of aortic disease.Specifically, the first end of the binding wire 2 of the present embodiment fromThe proximal end of holder 3 is to distally sequentially passing through each first kind through-hole and each Second Type through-hole in art so that pulls bindingWhen the second end of line 2, the binding wire 2 is from the proximal end of holder in art 3 to the main body rack of holder 3 in the sequence release art of distal end31。
In the present embodiment, it is additionally provided with opening (not indicated in figure) on the coating 1, side branch stent 32 is opened from describedIt is pierced by mouthful, and main body rack 31 is wrapped up using coating 1.
As shown in Fig. 2, the conveying device 10 of the present embodiment further includes operation handle 4, main body liner 5 and collateral liner 6, instituteIt states operation handle 4 and connects main body liner 5, the collateral liner 6 is set on main body liner 5 and prolongs to the outside of main body liner 5It stretches.As shown in figure 4, the main body rack 31 of holder 3 is assembled on main body liner 5 in the art, holder 5 in the artSide branch stent 32 is assembled on collateral liner 6, and the second end of the binding wire 2 is fixed in operation handle 4.
Further, the operation handle 4 includes shell 41 and the wire grip 42 positioned at 41 proximal end of shell, the wire grip 42Separable connection is formed with shell 41 (this connection relation, which becomes apparent from, is shown in Fig. 5), it is preferable that the second end of the binding wire 2It is fixed across shell 41 and wire grip 42.
Then, as shown in figure 5, when by 3 smooth delivery of power of holder in art to specified lesion locations, the holder conveying dress into artWhen setting 10 proximal end pulling wire grip 42, the binding wire 2 is extracted out from the coating 2, you can is unlocked the constraint of coating 1 and is madeThe release of holder 3 is positioned in blood vessel (such as descending aorta) in art, and the form of holder 3 is as shown in Figure 6 in art after release.In Fig. 6, instituteIt states the positioning of main body rack 31 to be released in descending aorta, the release of the side branch stent 32 is positioned at branch vessel (i.e. under left clavicleArtery) in.Certainly, in holder 3 in tightening art, since the second end of the binding wire 2 is connect with wire grip 42, so only drawThe first end of dynamic binding wire 2, you can so that the relative side of coating 1 collapses and tightens holder 3 in art.In other embodimentIn, if the both ends of binding wire 2 are free end, need to pull the first end and second end of binding wire 2 can just collapse coating simultaneously1。
Further, the first kind coil 21 formed at first is detachably secured in operation handle 4.Preferably, such asShown in Fig. 2 and Fig. 4, the distal end of the operation handle 4 is provided with fixed block 7, and the first kind coil 21 is removably securedIn on fixed block 7.Thus, which first kind coil 21 is connect with fixed block 7, tightened in art convenient for pulling binding wire 2Holder 3 removes first kind coil 21 in turn on self-retaining block 7, can release the fixed setting of first kind coil 21.
Then, with continued reference to Fig. 1, it is preferable that the phase of the first kind through-hole and Second Type through-hole along the coatingOpposite side is symmetrical arranged, and the line of multiple first kind through-holes on same straight line and is parallel to holder in the artAxis direction.
As shown in figure 3, in a preferred embodiment, the proximal end connection of the main body rack 31 of holder 3 in art of the present inventionArtificial blood vessel 33.In some lesions, in the lesion as only involved descending aorta and left subclavian artery, artificial blood vessel 33 is convenient forDirectly vascular suture is had by oneself with human body.
As shown in fig. 6, in the course of surgery, above-mentioned artificial blood vessel 33 can also further connect another section of artificial blood vessel34, in other lesions, such as involves in the arch of aorta even lesion of aorta ascendens, repair and substitute by artificial blood vessel 34Parts of lesions blood vessel simultaneously has vascular suture by oneself with human body.
Presently preferred embodiments of the present invention is as described above, but be not limited to the range disclosed in above-described embodiment, such asThe fixed setting mode of a kind of type coil 21 is not limited to connect with fixed block 7, for another example the second end of the binding wire 2 is notIt is confined to connect with wire grip 42, in another example, the quantity of the first kind through-hole and the quantity of Second Type through-hole are not limited toIn one-to-one correspondence.In addition, the direction that the binding wire 2 penetrates first kind through-hole is towards the direction of Second Type through-hole,The direction that the binding wire 2 is pierced by first kind through-hole is the direction for deviating from Second Type through-hole, and similarly the binding wire 2 is wornThe direction for entering Second Type through-hole is towards the direction of first kind through-hole, and the binding wire 2 is pierced by Second Type through-holeDirection is away from the direction of first kind through-hole.
In conclusion in the art of the present invention installation method and the method for releasing of holder and conveying device have it is excellent as followsPoint：
Firstly, since using only disengageable binding wire, the corresponding coating of binding wire i.e. releasable only need to be extracted out, in turnIt will be located in blood vessel (such as arch of aorta) with branch or without holder release in the art of branch；With in the prior art install art inThe method of holder is compared, using the installation method of the present invention, need to only utilize binding wire sequentially pass through be oppositely arranged on coating it is logicalHole and the coil that fastening structure is formed at partial through holes, and the first kind coil formed at first is removably secured, soIt pulls the first end of binding wire and/or second end that can be tightened to coating afterwards and holder in art is made to be in compressive state, this receiptsTight process is relatively simple, it is not easy to malfunction, production efficiency is high.
Secondly, using the method for releasing of the present invention, the fixed setting of the first kind coil formed at first need to be only released, andHolder in second end, that is, releasable art of binding wire is pulled, release process is equally simple, easily operated, not error-prone, and efficiencyIt is high.
In addition, holder installation and method for releasing in art according to the present invention, when the side branch stent of holder in the art of the present inventionAfter being accurately positioned, the binding wire discharges main body rack from the proximal end of holder in art to distal end sequence, during releaseThe proximal part of main body rack hardly shifts, and the distal portions of main body rack there is apparent natural cripetura notThe side branch stent close to main body rack proximal end can be caused to shift, in this way, avoiding in operation collateral displacement and at a specified future date collateral beatingThe problems such as folding or Side branch occlusion, significantly improve the therapeutic effect of aortic disease.
In addition, in practical process of binding, after often passing through several through-holes or forming a coil, pulling can be passed throughAt least one end in the both ends of binding wire avoids relatively being difficult to tighten coating after the multiple coils of snapping to tighten coating, because oneHolder is deposited between another aspect binding wire and between binding wire and coating there are outside expansionary force in art in aspect coatingIn frictional force, so, the first end and/or second end for pulling on binding wire are arranged after the completion of threading and/or in threading process,Binding wire is timely and effectively tightened with more convenient.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hairAny change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claimsRange.