CN203935301U - Overlay film frame and overlay film thereof - Google Patents
Overlay film frame and overlay film thereof Download PDFInfo
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- CN203935301U CN203935301U CN201420348166.8U CN201420348166U CN203935301U CN 203935301 U CN203935301 U CN 203935301U CN 201420348166 U CN201420348166 U CN 201420348166U CN 203935301 U CN203935301 U CN 203935301U
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Abstract
The utility model discloses a kind of overlay film frame and overlay film thereof, overlay film comprises main part (201) and is connected to the branching portion (202) on this main part (201), described main part (201) forms at least in part can be along the first ripple struction of the axial compression of this main part (201), and on described overlay film, be also formed with plain arch (220), this plain arch (220) extends to described main part (201) and is configured to make described main part (201) and described branching portion (202) can be along the second ripple struction of the bearing of trend compression perpendicular to described plain arch (220) from described branching portion (202).Due on overlay film except the first ripple struction, also there is second ripple struction of being constructed by plain arch, can effectively improve deformation angle and the compression direction of overlay film, so blood vessel adaptability is higher.
Description
Technical field
This utility model relates to overlay film frame field, particularly, relates to a kind of overlay film of overlay film frame and the overlay film frame of this overlay film of use.
Background technology
Along with the arriving of aging society, cardiovascular and cerebrovascular disease is more and more.Wherein, when aortic arch generation pathological changes, blood flow and lesion portion need to be completely cut off, to alleviate the pressure of aortic arch blood vessel wall.Wherein, aortic arch is one section of bending and with the trunk of a plurality of branches, wherein the three branches variation at the innominate artery on aortic arch, left neck artery and left subclavian artery place is larger, diameter each not just as, the distance at interval and also different with the angle of aortic arch, the intravascular stent of wherein implanting is overlay film frame, and overlay film wherein plays artificial blood vessel's work in order to blood flow is directed in three branches, and support plays the effect of radial support grappling overlay film.In prior art, the implantation of this overlay film frame is that overlay film and support are implanted simultaneously, that is, overlay film be coated in advance on support and with support implantable intravascular simultaneously.Yet can there is following problem in this mode:
1, can make to implant the implant system of overlay film frame oversize, be unfavorable for the conveying in blood vessel;
2, the main part of overlay film and branching portion, in three branch vessel place location difficulty, are implanted difficulty high;
3, in overlay film, occur that the probability of internal hemorrhage due to trauma is higher, therapeutic effect is poor;
4, need to customize different overlay films to different patients, make patient wait for that operating time is long, and cost be high.
Therefore, can solve the overlay film frame of above-mentioned at least one problem and the improvement of implant system all has positive effect.
Utility model content
The purpose of this utility model is to provide a kind of overlay film of overlay film frame and uses the overlay film frame of this overlay film, and the blood vessel adaptability of this overlay film is higher.
To achieve these goals, according to an aspect of the present utility model, a kind of overlay film of overlay film frame is provided, comprise main part and be connected to the branching portion on this main part, described main part forms at least in part can be along the first ripple struction of the axial compression of this main part, and on described overlay film, be also formed with plain arch, this plain arch extends to described main part and is configured to make described main part and described branching portion can be along the second ripple struction of the bearing of trend compression perpendicular to described plain arch from described branching portion.
Preferably, the described main part between the end of described main part and described branching portion forms described the first ripple struction.
Preferably, described branching portion is a plurality of, and the described main part between adjacent described branching portion forms described the first ripple struction.
Preferably, described branching portion is three.
Preferably, form can be along the 3rd ripple struction of the axial compression of this branching portion for described branching portion.
Preferably, described overlay film comprises that being separately positioned on described the first ripple struction and/or described the second ripple struction many tightens line, tightens line for every and is separately fixed on the crest of described the first ripple struction and/or described the second ripple struction.
Preferably, described overlay film comprises that many of being arranged on the 3rd ripple struction tighten line, tighten line for every and are separately fixed on the crest of described the 3rd ripple struction.
Preferably, described at least a portion, tightening line is fixed on the described crest of the corner location that is positioned at described plain arch.
According on the other hand of the present utility model, a kind of overlay film frame is provided, comprise support and be coated on the overlay film outside this support, the overlay film that described overlay film provides for this utility model.
By technique scheme, due on overlay film except the first ripple struction, also there is second ripple struction of being constructed by plain arch, can effectively improve deformation angle and the compression direction of overlay film, so blood vessel adaptability is higher.
Other feature and advantage of the present utility model partly in detail are described the specific embodiment subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms a part for description, is used from explanation this utility model, but does not form restriction of the present utility model with the specific embodiment one below.In the accompanying drawings:
Fig. 1 is that the overlay film frame implant system that this utility model preferred implementation provides is implanted into the structural representation of overlay film in aortic arch three branch vessel;
Fig. 2 is that the overlay film frame implant system that this utility model preferred implementation provides is held the structural representation of operation part in vitro;
Fig. 3 is the external shape structural representation of the overlay film frame implant system that provides of this utility model preferred implementation;
Fig. 4 is the structural representation of the stent conveying device that provides of this utility model preferred implementation;
Fig. 5 is the sectional structure schematic diagram of leading core in this utility model preferred implementation;
Fig. 6 is the structural representation of the overlay film that provides of this utility model preferred implementation;
Fig. 7 is the sectional structure schematic diagram along the line A-A intercepting in Fig. 6;
Fig. 8 is the sectional structure schematic diagram along the line B-B intercepting in Fig. 6;
Fig. 9 is the plan structure schematic diagram of the support that provides of this utility model preferred implementation;
Figure 10 is the side-looking structural representation of the support that provides of this utility model preferred implementation.
Description of reference numerals
201 main part 202 branching portions
203 main body seal wire 204 branch's seal wires
205 lead core 206 lead sheaths
Silk is controlled in 207 front-end control silk 208 rear ends
209 turn to drive mechanism 210 spacing holes
211 spacing knot 212 wire fixings
213 lead core locking member 214 stent conveying devices
215 support plunger tip 216 supports are led core
217 support lead sheath 218 support target seekers
219 support target seeker 220 plain arches
211 tighten line
230 rack body 231 compact part
232 puff 233 notch parts
2021 first branching portion 2,022 second branching portions
2023 the 3rd branching portion 2,041 first branch's seal wires
2042 second branch's seal wire 2043 San branch seal wires
2051 target seeker 2,131 first tight lock parts
2132 second tight lock parts
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is elaborated.Should be understood that, the specific embodiment described herein only, for description and interpretation this utility model, is not limited to this utility model.
In this utility model, in the situation that not doing contrary explanation, the noun of locality using typically refers to the interior and outer of respective objects profile as " inside and outside ", " far away, near " is that certain parts is with respect to the far and near position of another parts, " forward and backward " normally take support and associated components is basis definition along the implantation direction of blood vessel, that is, corresponding component moves forward into blood vessel, the blood vessel of drawing back out.These nouns of locality, only for this utility model is described, are not limited to this utility model.
In order to solve the problems of the prior art, first the overlay film frame method for implantation that this utility model adopts for implanting overlay film, then at the accurate implant frame again behind location of overlay film, be that overlay film and support are implanted respectively, thereby overlay film and support all can accurately be fitted on three branch vessel walls of aortic arch.It should be noted that; the overlay film frame implant system that this utility model provides, method can also need to be implanted the position of the blood vessel between overlay film for other except aortic arch three branch vessel, for the distortion of its application site, all drop in protection domain of the present utility model.Except implant system, this utility model has also improved this body structure of overlay film and support further, will divide overlay film implantation, support implantation, structure of film and four aspects of supporting structure to be described in detail this utility model below.
[overlay film implantation]
First, below in connection with Fig. 1 to Fig. 3, introduce implant system, the method for the overlay film of overlay film frame, wherein, Fig. 1 has schematically shown the interior part-structure of the body of the overlay film implant system that this utility model provides, Fig. 2 schematically shows the outer body structure of the overlay film implant system that this utility model provides, and Fig. 3 schematically shows the monnolithic case structure of the overlay film implant system that this utility model provides.In the overlay film implant system providing at this utility model, overlay film comprises and forms the main part 201 of tubular structure and be connected to the branching portion 202 on this main part 201, wherein the number of branching portion 202 depends on vessel position used, for example, in aortic arch of the present utility model three branch vessel positions, it comprises that the first branching portion 2021, the second branching portion 2022 and the 3rd branching portion 2023 are to adapt to respectively innominate artery, left neck aorta and left subclavian artery.Wherein, this utility model provides overlay film method for implantation, system can be held the adjusting of overlay film being carried out to axial location in vitro.Comprising the front-end and back-end of the main part 201 to overlay film and the front end of branching portion 202, carry out the adjusting of axial location.Particularly, one end in vitro, for example rear end carries out regulating and can also to the branching portion 202 of overlay film, carrying out axial location adjusting by the seal wire of branch vessel towards the axial location of direction of both ends to the main part 201 of overlay film, thereby realizes accurately the fit blood vessel wall of three branches of overlay film.Further, the overlay film implant system that this utility model provides can also guarantee overlay film invariant position after positioning in the implantation process of follow-up support, thereby guarantees the accurate location of overlay film frame integral body.
Particularly, as shown in Figure 1, the overlay film implant system that this utility model provides comprises main body seal wire 203, branch's seal wire 204, leads core 205 and lead sheath 206, wherein, lead core 205 is set on main body seal wire 203 movably, lead sheath 206 is taken in overlay film main part 201 and branching portion 202, and lead sheath 206 is set in movably and leads outside core 205.Wherein, overlay film implant system has the governor motion that regulates the axial location of overlay film after lead sheath 206 discharges overlay film, and this governor motion is connected with overlay film releasable ground.Thereby can free with overlay film and exit outside blood vessel after overlay film and the implantation of follow-up support.
More specifically, main body seal wire 203 is preferably ultrahard guide wire and can inserts and blood vessel, take the effect as subsequent parts guiding of playing from backward its.Wherein lead the target seeker 2051 that is fixed with the place ahead of the main part 201 that is positioned at overlay film on core 205, this target seeker 2051 has cone shape or other streamlined structures are led core 205 along the harmless movement of blood vessel wall guiding, wherein, lead core 205 inner for hollow-core construction is to be set in main body seal wire 203 outsides and to move axially along this main body seal wire 203, the number of branch's seal wire 204 depends on the number of branch vessel, in aortic arch of the present utility model three branch vessel positions, branch's seal wire 204 comprises first branch's seal wire 2041, second branch's seal wire 2042 and San branch seal wire 2043 are with respectively corresponding Supraaortic three branch vessel.Lead sheath 206 is for hollow-core construction is can take in the overlay film after compression, and lead sheath 206 can be controlled by extending back external end, for example, be positioned at the handle of external end.Lead sheath 206 be set in movably extend back equally lead core 205 outsides, can either being controlledly synchronized with the movement and can also moving along leading core 205 with leading core 205.In addition, the front end of lead sheath 206 and target seeker 2051 do not have annexation, for example, can be resisted against on target seeker 2051, can have certain intervals with target seeker 2051 yet and locate, with can be when needs discharge overlay film, control lead sheath 206 and withdraw backward overlay film, thereby discharge overlay film.Now whether lead sheath 206 can withdraw from overlay film, the use of the passage when implanting as follow-up support.
Wherein, in order to realize accurate adjustment and the location to the axial location of the main part 201 of overlay film after discharging overlay film, the governor motion that this utility model provides comprises front-end control silk 207 and rear end control silk 208, control silk for these two kinds and adopt respectively various disengageable modes well known in the art, the front-end and back-end that for example electrolysis is de-, mode that machinery is freed is connected to the main part 201 of overlay film, wherein, thus the de-mode of electrolysis can apply electric current so that syndeton fusing is discharged to the separate mode of realizing appropriate section in vitro by relevant silk thread.Number and the link position of controlling in addition silk do not limit, as long as can stablize the main part 201 that pulls overlay film.For example, in preferred implementation of the present utility model, front-end control silk 207 and rear end are controlled silk 208 and are three, and along circumferentially uniformly-spaced the arranging of main part 201, can realize so stably pull overlay film main part 201 towards the place ahead or rear move.Wherein it should be noted that, in Fig. 1, for clear, show that rear end controls Si208He branch seal wire 204, three rear ends are not controlled to silk 208 is shown as along the mode of circumferentially uniformly-spaced arranging, this also forms restriction of the present utility model.
In order to realize in vitro one end, pull regulate main part 201 towards both sides, as a kind of preferred implementation, adjustment structure of the present utility model comprises and turns to drive mechanism 209, and this turns to drive mechanism 209 can make the corresponding silk of controlling turn to.The preferred implementation of this utility model in this utility model, this utility model can be so that front-end control silk extends back after turning to drive mechanism 209 to turn to by this, can realize pulling overlay film front end by external end in the wings, in conjunction with the rear end to extend back, control silk 208, the external end that the implant system that this utility model provides can be realized is in the wings realized pulling overlay film two ends.Particularly, turn to drive mechanism 209 to be arranged on the place ahead of the main part 201 of overlay film.It should be noted that, in other embodiments, in rear end, regulate forward overlay film front end mode can also by front-end control silk 207 with lead core 205 and be connected, particularly, can directly be connected to lead on core 205 or be connected on target seeker 2051 with indirectly with lead core 205 and be connected, when needs regulate forward overlay film front end, only need promote forward to lead core 205 like this.In addition in other embodiments, realize the mode that overlay film rear end is pulled and incessantly use rear end to control 208 1 kinds of silks can also to have other modes, for example, rear end is not set and controls rear end and the blood vessel wall that 208 of silks promote overlay film by blood flow and be close to.For this type of mode of texturing, all should drop in protection domain of the present utility model.
In preferred implementation of the present utility model, particularly, front-end control silk 207 through leading core 205, turns to drive mechanism 209 to be arranged on and leads on core 205 movably, preferably, is arranged on target seeker 2051.Wherein turn to the drive mechanism 209 can be for being formed on the crossover port on target seeker 2051, this crossover port can be directly on target seeker 2051 perforate obtain, the guide ring that also can be connected on target seeker 2051 by setting obtains.Like this, front-end control silk 207 can penetrate to lead in core 205 and along leading core 205 and extend back from the front end of the main part 201 of overlay film is drawn.Therefore, when needs are forward during side shifting main part 201, only need an external end in the wings pull front-end control silk 207, can realize main part 201 is pulled forward, overall structure is simply ingenious.
In addition, silk 208 is controlled in rear end can directly be connected to the rear end of main part 201 by disengageable mode, and from draw rear end, penetrates in lead sheath 206 and extend back along lead sheath 206.Like this, when needs rearward pull main part 201, direct external end operation in the wings pulls back rear end control silk 208 and can make main part 201 move backward.Therefore the implant system that, this utility model provides and method can realize the accurate adjustment to the axial location of the main part 201 of overlay film in an individual outer end.
The adjustment of the axial location of the above-mentioned main part 201 of having introduced overlay film, introduces the adjustment of axial location of the branching portion 202 of overlay film below.Wherein, due to the existence of main part 201, implant system only need be realized the blood vessel wall of fitting that pulls forwards to branching portion 202, and does not need rearward to pull branching portion 202.Therefore, this utility model creatively utilizes the axial location of 204 pairs of branching portions 202 of branch's seal wire to adjust, and wherein branch's seal wire 204 penetrates in the lead sheath 206 extending back to extend back along lead sheath 206.Particularly, in order to realize by the adjustment of 204 pairs of branching portions 202 of branch's seal wire, governor motion comprises the spacing knot 211 being arranged on branch's seal wire 204, and on branching portion 202, be provided with spacing hole 210, wherein the size of spacing knot 211 is greater than the size of spacing hole 210, and spacing hole 210 is positioned at the place ahead of spacing knot 211.Like this, when needs pull branching portion 202 forward, only need pull forward branch's seal wire 204, thereby spacing knot 211 can be stuck in drive branching portion 202 on spacing hole 210, travel forward.
Wherein, the generation type of spacing knot 211 can be two seal wires by forming around knot mode, also can on seal wire, connect additional components and form.Wherein preferably, be arranged in branch's seal wire 204 spacing knot 211 releasables, such as solderless wrapped connection before and after two seal wires being adopted to disengageable mode (electrolysis is de-, machinery is freed etc.), form.Whether this spacing knot 211 needs to free with branch seal wire 204 mode of withdrawing from that depends on that branch's seal wire 204 is last, if the mode that adopts branch's seal wire 204 to withdraw from from the place ahead, need spacing Jie211Wei Yu branch seal wire 204 to form for disengageable mode, if the mode that adopts branch's seal wire 204 to withdraw from from rear, do not need spacing Jie211Yu branch seal wire 204 to free, directly from rear, withdraw from branch's seal wire 204.
In addition, the mode that forms spacing hole 210 can form for connect spacing ring on branching portion 202, and this spacing ring can be formed by metal that can implant into body.Because size is less, this spacing ring can be retained in patient body with overlay film, and can not cause vascular lesion.In addition, in order not affect the guiding of branch's seal wire 204, preferably adopt connecting line that spacing ring is connected with branching portion 202, so that the two interval arranges, can reduce like this wearing and tearing of 204 pairs of branching portions 202 of branch's seal wire.In order effectively to pull the branching portion 202 of overlay film, connecting line be many and along circumferentially all should ground with branching portion 202 releasables be connected, therefore spacing ring is positioned at the radial center of branching portion 202, so that branch's seal wire 204 more effectively pulls branching portion 202, now, connecting line can with branching portion 202 releasables, therefore after freeing, spacing ring Ke Sui branch seal wire 204 is withdrawn from forward, now without spacing knot releasable.Like this, after spacing ring is withdrawn from, can not disturb the circulation of blood in later stage blood vessel.In addition, spacing knot 211 and spacing hole 210 also have other modes of texturing, and only otherwise depart from design of the present utility model, various distortion all drop in protection domain of the present utility model.
In addition as shown in Figure 1, because rear end control Si208He branch seal wire 204 penetrates lead sheath 206 inside, for fear of the implantation that interferes with later stage support, the guide wire collecting groove extending along lead sheath 206 bearing of trends can be set on lead sheath 206 inwalls, corresponding silk thread is only extended on the inwall of lead sheath 206 and can not have influence on the later stage and still will implant through the support of lead sheath 206.
Below in conjunction with Fig. 2, introduce the structure of the external control end of the overlay film implant system that this utility model provides, wherein, external control section comprises that immobile phase releasedly should control the wire fixings 212 of silk and seal wire and lead core locking member 213 by what lead that core 205 fixes with respect to described lead sheath 206, wherein the number of wire fixings 212 depends on the number of this utility model seal wire used and control silk, its structure is known described in those skilled in the art, for example adopt the structure of locking-type plug, , corresponding silk thread is fixed on locking-type plug, when needs immobile phase is answered silk thread, only locking-type plug need be inserted and secured on the fixing bases such as handle, various modes of texturing for wire fixings 212 all drop in protection domain of the present utility model.When lead sheath 206 being withdrawn to overlay film and control overlay film by front-end control silk 207, need to fixedly turn in addition drive mechanism 209 places to lead core 205 positions motionless, preferably, lead core locking member 213 and will lead core 205 and be fixed with respect to lead sheath 206.Wherein lead sheath 206 is fixed on the matrixes such as handle after extending to external end, therefore the position of leading core 205 also can be fixed.This embodiment of leading core locking member 213 has multiple, below in conjunction with the implantation respectively of overlay film and support, to leading core locking member 213, is described in detail.
[support implantation]
The above-mentioned implantation of introducing this utility model overlay film needs implant frame to support and grappling overlay film after overlay film is implanted.In the implant system that the overlay film providing at this utility model and support are implanted respectively, comprise the stent conveying device 214 of taking in releasedly with transfer gantry, this stent conveying device can adopt the implantation of various supports in this area that support is taken in, carried and discharges.Wherein as a kind of preferred implementation, in this utility model, during follow-up implant frame, adopt the core 205 of leading in overlay film implant system to move for guide support conveyer device as guiding seal wire,, described in being set in movably, stent conveying device 214 leads outside core 205, and the interior movement of lead sheath 206 that can and can be after discharging overlay film, thus make the organically combination of difference implantation process of overlay film and support, can complete efficiently the implantation of overlay film frame.
In this utility model, need to be when core 205 implant frame to be led in utilization, the relative position that always guarantees to lead core 205 and lead sheath 206 is motionless.Therefore the core locking member 213 of leading that this utility model provides has adopted special construction.Particularly, leading core locking member 213 is fixedly connected with lead sheath 206 and has the first tight lock part 2131 and the second tight lock part 2132, the first tight lock parts 2131 and the second tight lock part 2132 respectively can the locking of release ground be led core 205 and along leading the axially spaced-apart setting of core 205.Wherein, leading mode that core locking member 213 is fixedly connected with lead sheath 206 can also can be for being fixedly connected with for being directly fixedly connected with indirectly, such as can and leading core locking member 213 by lead sheath 206, be all fixed on the matrixes such as operating grip, the rear end of lead sheath 206 and being fixed on operating grip particularly, the front end of leading core locking member 213 is fixed on operating grip, thereby realize, leads being indirectly fixedly connected with of core locking member 214 and lead sheath 206.In addition preferably, the rear end of leading core 205 passes the rear end of lead sheath 206, and the first tight lock part 2131 and the second tight lock part 2132 can be locked to release respectively leads the part that core 205 stretches out from lead sheath 206.
In preferred implementation of the present utility model, lead core locking member 213 and comprise shape body, this shape body is fixedly connected with lead sheath 206, the first tight lock part 2131 and the second tight lock part 2132 are separately positioned on shape body and arrange along the length direction interval of shape body, and these two tight lock parts respectively can the locking of release ground be led core 205 and along leading the axially spaced-apart setting of core 205.More specifically, the first tight lock part 2131 and the second tight lock part 2132 extend towards leading core 205 in the same way from shape body, and in the end away from shape body, are provided with and can lock to release the locking mechanism of leading core 205.
In addition; the locking mechanism of two tight lock parts can be for multiple; in preferred implementation of the present utility model; locking mechanism is screw-threaded coupling part; lead and on core 205, be formed with accordingly the screwed hole coordinating with this screw-threaded coupling part; adopt the locking mechanism of bolt arrangement to insert or extract to lead corresponding locking hole on core 205 and realize, other various locking modes well known in the art are all dropped in protection domain of the present utility model.
Wherein in order to realize, in support implantation process, to lead core 205 and lead sheath 206 and keep relative fixing, preferably, lead core locking member 213 and comprise the first locked position and the second locked position, the first tight lock part 2131 is different at the locking state of the first locked position and the second locked position, and the second tight lock part 2132 is different at the locking state of described the first locked position and the second locked position and the first tight lock part 2131.That is,, when needs are when leading core 205 implant frame, only need successively two tight lock parts of release and guarantee that locking state and the released state of two tight lock parts are different.Particularly, at the first locked position, be positioned at the first tight lock part 2131 releases, core 205 is led in the second tight lock part 2132 lockings that are positioned at these the first tight lock part 2131 the place aheads, be set in the stent conveying device of leading on core 205 and slide between the first tight lock part 2131 and the second tight lock part 2132 along leading core 205, at the second locked position, core 205 is led in the first tight lock part 2131 lockings, the second tight lock part 2132 releases, stent conveying device moves forward to arrive the precalculated position in overlay film by the second tight lock part 2132.Wherein, when adopt mutually extend external during with controlled stent conveying device, need to guarantee that the spacing between the first tight lock part 2131 and the second tight lock part 2132 is not less than the development length of stent conveying device, with prevent stent conveying device hinder the first tight lock part 2131 to leading the locking of core 205.
Like this, support can be smoothly successively by two tight lock parts under released state in priority, and the tight lock part that maintains the lock status can guarantee to lead always core 205 with lead sheath 206 in relative fixed position, thereby it is constant that the position that makes overlay film guarantees in support implantation process always, to complete smoothly, in the method that overlay film and support are implanted respectively, guarantee can together accurately fit in corresponding aortic arch three branch vessel walls with overlay film after support is implanted.
Above-mentioned introduced support how through can realize implant system that support implants have multiple, as long as can storage support and support is transported in overlay film to releasing bracket behind relevant position.As a kind of embodiment, as shown in Figure 4, stent conveying device 214 comprises that support lead sheath 217, support lead core 216 and support plunger tip 215.Wherein, support compression is accommodated in support lead sheath 217 and is set in support and leads outside core 216, and support plunger tip 215 is set in support movably, leads between core 216 and support lead sheath 217 and be positioned at back-end support, its medium-height trestle is led core 215, support lead sheath 217 and support plunger tip 216 and can be extended rearward to respectively external end and with controlled and support, lead core 215 front ends and be fixed with the support target seeker 219 with streamlined structure.Therefore, when implant frame, support is led to core 216 and be set in slidably that to lead core 205 outer so that stent conveying device 214 enters in lead sheath 206 and moves forward, by operation support lead sheath 217, core 216 led by support and support plunger tip 215 is implanted to relevant position by support along leading core 205.When operation support is transported to behind relevant position, guarantee that support plunger tip 215 is motionless and withdraw from backward support lead sheath 217, can make support launch and fit in overlay film.Finally, support plunger tip 215, support are being led to core 216 and support lead sheath 217 is withdrawn from the implantation that can complete support backward.Be wherein with should be noted that, the development length that included support lead sheath 217, the support of above-mentioned support implanting device led core 216 and support plunger tip 215 is all not more than the spacing of the first tight lock part 2131 and the second tight lock part 2132, thereby does not hinder the normal work of leading core locking member 213.
Further, consider front-end control silk 207 need to be movably through leading core 205, and support needs to implant along leading core 205, so this utility model improves leading core 205 further.Particularly, as shown in Figure 5, lead a plurality of control silks hole 2052 that core 205 comprises the thread eye 2051 passing for main body seal wire 203 and arranges around thread eye 2051, wherein control a hole 2052 and be formed on the sidewall of leading core 205, and with lead core 205 and extend in the same way.More preferably, the outer wall of leading core 205 has on-circular cross-section structure, and this on-circular cross-section structure has the projection that forms described control silk hole 2052.Example triangular structure as shown in Figure 5, but be not limited to this.Therefore, projection by this non-round cross-section structure not only can be controlled silk thread to hold front-end control silk 207 grades in formation control silk hole 2052, and as long as the inwall that the support in stent conveying device 214 is led to core 216 is designed to lead with this outer wall form fit of core 205, both can lead core 216 supports and set up profile annexation leading core 205 and support, thereby by rotation, lead core 205 and both can realize runing rest conveyer device 214 simultaneously, thereby realize the adjusting of the circumferential position of support, can more guarantee like this positioning precision of support.
When the overlay film of above-mentioned overlay film frame and support are all accurately behind location, lead core 205, lead sheath 206, various silk thread and the stent conveying device of overlay film implant system can be withdrawn to human vas backward, thereby complete the implantation of the overlay film frame that this utility model provides.It should be noted that; in overlay film frame method for implantation of the present utility model; the implantation of support can also adopt other support implanted prosthetics well known in the art; also can use this utility model to carry out the implantation of later stage support as the implantation of disclosed branch vessel in Fig. 1, the mode of texturing of implanting for various supports all drops in protection domain of the present utility model.
[structure of film]
Above-mentioned implant system, the method for having introduced the overlay film frame that this utility model provides.Wherein, in order to adapt to various shapes, size and the angle of aortic arch three branches, this utility model has also carried out comparatively successfully improving can adapt to expansion and the contraction of all directions to overlay film itself.And do not need personal blood vessel feature and customize different overlay films.
As shown in Figure 6 to 8, this utility model also provides a kind of overlay film of overlay film frame.The overlay film body of this overlay film comprises main part 201 and is connected on main part 201 and the branching portion 202 communicating with this main part 201, wherein in order to realize the purpose of this utility model, as shown in Figure 6, main part 201 forms at least in part can be at the first ripple struction along its axial compression, and on overlay film, be also formed with plain arch 220, this plain arch 220 extends to main part 201 from branching portion 202, and, as shown in Figure 7 and Figure 8, plain arch 220 is configured to the second ripple struction that main part 201 and branching portion 202 can be compressed perpendicular to the bearing of trend of plain arch 220.
Wherein it should be noted that, in order to clearly show structure of the present utility model, in Fig. 6, plain arch 220 has been adopted to the different techniques of painting, particularly, plain arch in main part 201 left sides has adopted can illustrate that it is the technique of painting of ripple struction, and the plain arch 220 of other parts has adopted and can illustrate the simple technique of painting of its bearing of trend, by this contrast technique of painting can clearly illustrate plain arch 220 can make main part 201 and the branching portion 202 of process form the ripple struction perpendicular to the bearing of trend compression of plain arch 220.For example, main part 201 ends are outside can compressing vertically by the first ripple struction, and plain arch 220 can make this end radially compress.Thereby, the main part that makes overlay film that this utility model provides have first wave stricture of vagina structure and the second ripple struction is realized and can axially, radially gone up random variation, and according to the characteristic of ripple struction, the main part that forms the first ripple struction can also bend in the axial direction, therefore can adapt to the distortion of shape, size and the angle of the blood vessel wall of the main blood vessel in various branch vessel completely.
Wherein preferably, branching portion 202 forms can be along the 3rd ripple struction of its axial compression, and therefore, the overlay film that this utility model provides can also adapt to the angle of the blood vessel wall of the branch vessel in branch vessel, the distortion in size.
Wherein, preferably, as shown in Figure 6, in order to optimize overall structure, in the end of main part 201 and the main part 201 between branching portion 202, form the first ripple struction, more preferably, in the situation that branching portion more than 202 is individual, the main part 210 between contiguous branch portion 202 forms respectively described the first ripple struction.In the application for aortic arch three branch vessel of the present utility model, branching portion is three.By this appropriate design, in the situation that guaranteeing main part 201 random variation, make structure simpler, be convenient to processing.
In addition, the overlay film that this utility model provides also comprises that many of being arranged on the first ripple struction and/or the second ripple struction and/or the 3rd ripple struction tighten line 211, tighten line 211 for every and are separately fixed on the crest of the first ripple struction and/or the second ripple struction.Therefore, when needs compress on overlay film corresponding ripple struction, only tightening after line 211 is strained on the crest of correspondence position need be tightened, thereby tighten line 211 and can realize overlay film in variation axial, that footpath makes progress size according to what arrange on diverse location, that is, can regulate the internal diameter of main part 201 and branching portion 202 and length, branching portion 202 with respect to the angle of inclination of main part 201 and the spacing between branching portion 202 etc.
Wherein more preferably, tightening line 211 is fixed on the crest that is positioned at plain arch 220 corner locations, be formed on the second ripple struction, wherein this corner location is corner location on the bearing of trend of plain arch 220 (see lower square mark in Fig. 6 tighten line 221), its particular location is positioned at and the position of aliging with branching portion 202 on main part 201, therefore, this tightens line 211 not only can tighten the length with control subject portion left, tighten up and down the diameter with control subject portion, can also tighten to control the spacing between branching portion 202 to the right, and and upwards and branching portion 202 tighten wire harness tightly with the angle of inclination of control branching portion 202, the fastening portions of this corner location can be tightened with the line 211 of tightening being positioned on its surrounding any direction, thereby can be by being positioned at the diameter that line 211 completes the main part 201 of overlay film of tightening of this corner, the angular adjustment of length and branching portion 202.
Therefore, the overlay film that this utility model provides can carry out secondary operations according to patient's blood vessel feature to overlay film in vitro, thereby makes overlay film more can adapt to the blood vessel of different people, does not need different people to customize different overlay films, and cost is lower, practical.
Wherein, this utility model provides the specification of the ripple struction on overlay film to depend on the shape of used blood vessel; the overlay film that this utility model provides in addition can be used the macromolecular material hot pressing that PTFE etc. can implant into body to form, and for the various modes of texturing of size, specification and the material etc. of overlay film, all drops in protection domain of the present utility model.
[supporting structure]
Except overlay film, this utility model also improves the support in overlay film frame.Wherein, due to the existence of the branching portion 202 of overlay film, if adopt monolithic construction for supporting with the support of grappling overlay film, will cause hole resistance to branching portion, and affect the blood flow of branching portion.Therefore in prior art, be all to implant respectively independent support at the two ends of overlay film, so both can grappling support and grappling overlay film, can keep again the blood flow of branching portion unimpeded.But, can cause so the loaded down with trivial details inconvenience of implantation process of support.
In order addressing this problem, in this utility model, to have adopted integrated support and can effectively avoid the hole resistance problem to branching portion.Particularly, as shown in Figure 9 and Figure 10, the support that this utility model provides comprises rack body 230, and is formed with the notch part corresponding with the branching portion 202 of described overlay film 233 on this rack body 230.Therefore,, due to the existence of notch part 233, can not cause hole resistance to overlay film branching portion 202, and complete the support of overlay film and grappling by a support.It should be noted that, it is not apparent accessing this feature, but due to branching portion 202 be positioned at a side of main part 210 and circumferential direction that this utility model implant system can guarantee support location, so can use such support, make notch part 233 and branching portion 202 correspondences.Otherwise, as do not guaranteed the circumferential direction location of support, can not use this support with notch part 233.
In this utility model, in order to guarantee the circumferential location of support, Ke Jiang branch seal wire penetrates circumferential direction and branching portion 202 correspondences that can substantially determine like this notch part 233 in notch part 233, when support enters after overlay film, can also be by the distinctive core rotation mode of leading of this utility model, by rotation, lead core and support is rotated, thereby guaranteeing notch part 233 and branching portion 202 correspondence completely.Wherein notch part 233 can design according to the size of branching portion 202 and number, and the distortion of notch part 233 sizes and number all drops in protection domain of the present utility model.
Further, this rack body 230 comprises that wherein the skeletal density of compact part 231 is greater than the skeletal density of puff 232 at the compact part 231 at two ends and the puff 232 between compact part, and notch part 233 is formed on puff 232.Even the accurate respective branches portion 202 of notch part 233 like this, puff 232 also can effectively be avoided the hole resistance to branching portion 232 because skeletal density is little.Wherein skeletal density mentioned herein refers to while manufacturing support, the density of the silk thread (as tinsel) that relevant position is designed.The compact part 231 that is positioned at like this two ends can play the effect to the radial support of rack body 230, and the puff 232 in the middle of being positioned at can prevent the more thickly hole resistance of silk thread to blood vessel more reliably, is more conducive to the normal work of human vas.Wherein in preferred implementation of the present utility model, the skeletal density of compact part 231 that is positioned at two ends is identical.
In addition as shown in Figure 9 and Figure 10, in preferred implementation of the present utility model, rack body 230 forms straight tube structure, and consists of two compact part 231 and a puff 232.Wherein, the length ratio of compact part 231 and puff 232 is 1:3～1:2.To play better the effect of radial support blood vessel.In one embodiment, preferably, the skeletal density of puff 230 is uniformly distributed vertically, and the density of puff 232 with the ratio of the skeletal density of compact part 231 is: 1:10～1:2.In another kind of embodiment, preferably, the skeletal density uneven distribution of puff 231, but the skeletal density towards two ends increases gradually from axial centre.Thereby make support that this utility model provides support blood vessels better, and the effective problem that hole resistance occurs that effectively solved.
In addition, rack body 230 can be used the silk thread materials such as metal tantalum, medical stainless steel and Nitinol to be woven to Z-type compressible structure, for the distortion various well known in the art of its material and pressure texture, all drops in protection domain of the present utility model.In addition; in order to tackle three branch vessel of aorta three branch vessel; notch part 233 can, for one and simultaneously for three branch vessel, also can, for the different branch vessel of a plurality of correspondence respectively, all drop in protection domain of the present utility model for this type of distortion.
To sum up, this utility model introduces for implant system, the method for the overlay film frame of aortic arch three branch vessel and the overlay film using and support, this can make the registration of overlay film and support, and simple in structure easy to operate, has higher practicality and promotional value.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; this utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characterictic described in the above-mentioned specific embodiment, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, this utility model is to the explanation no longer separately of various possible compound modes.
In addition, between various embodiment of the present utility model, also can carry out combination in any, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (9)
1. the overlay film of an overlay film frame, comprise main part (201) and be connected to the branching portion (202) on this main part (201), it is characterized in that, described main part (201) forms at least in part can be along the first ripple struction of the axial compression of this main part (201), and on described overlay film, be also formed with plain arch (220), this plain arch (220) extends to described main part (201) and is configured to make described main part (201) and described branching portion (202) can be along the second ripple struction of the bearing of trend compression perpendicular to described plain arch (220) from described branching portion (202).
2. overlay film according to claim 1, is characterized in that, the described main part (201) between the end of described main part (201) and described branching portion (202) forms described the first ripple struction.
3. overlay film according to claim 1, is characterized in that, described branching portion (202) is a plurality of, and the described main part (210) between adjacent described branching portion (202) forms described the first ripple struction.
4. overlay film according to claim 3, is characterized in that, described branching portion (202) is three.
5. according to the overlay film described in any one in claim 1-4, it is characterized in that, described branching portion (202) forms can be along the 3rd ripple struction of the axial compression of this branching portion (202).
6. according to overlay film described in any one in claim 1-4, it is characterized in that, described overlay film comprises that being separately positioned on described the first ripple struction and/or described the second ripple struction many tightens line (211), tightens line (211) for every and is separately fixed on the crest of described the first ripple struction and/or described the second ripple struction.
7. overlay film according to claim 5, is characterized in that, described overlay film comprises that many of being arranged on the 3rd ripple struction tighten line (211), tighten line (211) for every and are separately fixed on the crest of described the 3rd ripple struction.
8. overlay film according to claim 6, is characterized in that, tightens line (211) described at least a portion to be fixed on the described crest of the corner location that is positioned at described plain arch (220).
9. an overlay film frame, comprises support and is coated on the overlay film outside this support, and it is characterized in that, described overlay film is according to the overlay film described in any one in claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348166.8U CN203935301U (en) | 2014-06-25 | 2014-06-25 | Overlay film frame and overlay film thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348166.8U CN203935301U (en) | 2014-06-25 | 2014-06-25 | Overlay film frame and overlay film thereof |
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| CN203935301U true CN203935301U (en) | 2014-11-12 |
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| CN201420348166.8U Active CN203935301U (en) | 2014-06-25 | 2014-06-25 | Overlay film frame and overlay film thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108245280A (en) * | 2016-12-29 | 2018-07-06 | 先健科技(深圳)有限公司 | Overlay film frame |
| CN110547896A (en) * | 2018-05-30 | 2019-12-10 | 杭州唯强医疗科技有限公司 | Blood vessel covered stent |
| CN111132638A (en) * | 2017-07-27 | 2020-05-08 | 波士顿科学国际有限公司 | Adjustable mandrel for forming stents with anti-migration features |
-
2014
- 2014-06-25 CN CN201420348166.8U patent/CN203935301U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108245280A (en) * | 2016-12-29 | 2018-07-06 | 先健科技(深圳)有限公司 | Overlay film frame |
| CN108245280B (en) * | 2016-12-29 | 2021-02-23 | 先健科技(深圳)有限公司 | Covered stent |
| CN111132638A (en) * | 2017-07-27 | 2020-05-08 | 波士顿科学国际有限公司 | Adjustable mandrel for forming stents with anti-migration features |
| CN111132638B (en) * | 2017-07-27 | 2022-03-29 | 波士顿科学国际有限公司 | Adjustable mandrel for forming stents with anti-migration features |
| CN110547896A (en) * | 2018-05-30 | 2019-12-10 | 杭州唯强医疗科技有限公司 | Blood vessel covered stent |
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Effective date of registration: 20180115 Address after: In Beijing economic and Technological Development Zone, two street 100176 Daxing District 8 Beijing City Hospital No. 4 Building B block 6 layer 602 unit Patentee after: Beijing Tianzhu Ruichang Medical Technology Co., Ltd. Address before: 100086 Beijing city Haidian District Qingyun aromatic garden Ting Building No. 9 room 2006 20 Tsing Wun contemporary building No. 115 Patentee before: Beijing Tianyou source investment partnership (limited partnership) |
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