CN205612594U - Take ramose tectorial membrane support and implantation system thereof - Google Patents

Take ramose tectorial membrane support and implantation system thereof Download PDF

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Publication number
CN205612594U
CN205612594U CN201620199315.8U CN201620199315U CN205612594U CN 205612594 U CN205612594 U CN 205612594U CN 201620199315 U CN201620199315 U CN 201620199315U CN 205612594 U CN205612594 U CN 205612594U
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CN
China
Prior art keywords
stent
graft
body portion
coating
film
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CN201620199315.8U
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Chinese (zh)
Inventor
李雷
张晓冬
姜君
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北京奇伦天佑创业投资有限公司
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Priority to CN201620199315.8U priority Critical patent/CN205612594U/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/04Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06Blood vessels
    • A61F2/07Stent-grafts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95Instruments specially adapted for placement or removal of stents or stent-grafts

Abstract

The utility model discloses a take ramose tectorial membrane support and implantation system thereof, tectorial membrane support include tectorial membrane main part (201) and connect tectorial membrane branch portion (202) on these tectorial membrane main part (201), the tip of tectorial membrane main part (201) combines to preset support (301). Because the tip of tectorial membrane main part has the support of presetting, can strengthen the station keeping ability of tectorial membrane to position adjustment after being convenient for implant.

Description

带分支的覆膜支架及其植入系统 Implant system and stent-graft with branch

技术领域 FIELD

[0001]本实用新型涉及血管支架领域,具体地,涉及一种带分支的覆膜支架及其植入系统。 [0001] The present invention relates to the field of vascular stent, in particular, to a stent graft with a branch and the implant system.

背景技术 Background technique

[0002]随着老龄化社会的来临,心脑血管疾病越来越多。 [0002] With the advent of an aging society, cardiovascular disease is increasing. 其中当主动脉弓发生病变时,需要将血流和病变部分进行隔绝,以减轻主动脉弓血管壁的压力。 Wherein when the aortic arch lesions, and lesion needs to be isolated from the blood flow, to reduce the pressure vessel wall of aortic arch. 其中,主动脉弓是一段弯曲且带多个分支的大血管,其中主动脉弓上的无名动脉、左颈动脉和左锁骨下动脉所在的三分支变异较大,直径各不形同,间隔的距离和与主动脉弓的角度也各不相同,其中植入的血管支架为覆膜支架,其中的覆膜起到人工血管的作用以将血流导向到三分支中,而支架则起到径向支撑并锚定覆膜的作用。 Wherein the curved section of the aortic arch and with a plurality of branches of the great vessels, wherein the aortic arch on the innominate artery, the left common carotid artery and the left subclavian artery branch where three large variation is not tantamount to the diameter of each, and the distance intervals and the aortic arch the angle is varied, wherein the vascular stent is implanted stent graft, wherein the coating acts as an artificial blood vessel to be directed into three branches, and the stent is radially supported and anchored play cover action film. 现有技术中,这种覆膜支架的植入方式为覆膜和支架同时植入,即,覆膜事先包覆在支架上并与支架同时植入血管。 In the prior art, such an implant embodiment of the stent graft and covered stent implanted at the same time, i.e., pre-coated and the coating film simultaneously with the stent graft vessel on the stand. 然而,这种方式会存在如下的问题: However, this way there will be the following questions:

[0003] 1、会使得植入覆膜支架的植入系统尺寸过大,不利于在血管中的输送; [0003] 1, will make the implanted stent graft oversized implant system is not conducive to the delivery in a blood vessel;

[0004] 2、覆膜的覆膜主体部和覆膜分支部在三分支血管处定位困难,植入难度高; [0004] 2, coating and film coating the body portion positioned in the third branch at a branch vessel difficult, the difficulty of implanting high;

[0005]因此,能够解决上述至少一种问题的覆膜支架及其植入系统的改进均具有积极意义。 [0005] Thus, an improved stent graft and implant system can solve the above problem has at least one positive.

实用新型内容 SUMMARY

[0006]本实用新型的目的是提供一种带分支的覆膜支架和植入该覆膜支架的植入系统。 [0006] The object of the present invention is to provide a stent graft with a branch and the implantation of the stent-graft implant system.

[0007]为了实现上述目的,根据本实用新型的一个方面,提供一种带分支的覆膜支架,包括覆膜主体部和连接在该覆膜主体部上的覆膜分支部,其中,覆膜主体部的端部结合有预置支架。 [0007] To achieve the above object, according to one aspect of the present novel utility is provided a stent graft with a branch, comprising coating the body portion and connected to the main body portion of the coating film branch, wherein the coating film end of the body portion incorporates a preset stent.

[0008]优选地,覆膜主体部的两端分别结合有预置支架。 [0008] Preferably, both ends of the coating film are bonded to the main body portion of the stent preset.

[0009]优选地,预置支架为与覆膜主体部紧密结合的环状结构。 [0009] Preferably, the preset stent coating in close conjunction with the body portion a cyclic structure.

[0010]优选地,预置支架从覆膜主体部的端部延伸至相邻的覆膜分支部。 [0010] Preferably, the preset film holder extends from the end portion of the main body adjacent to the branch portion of the coating film.

[0011 ]优选地,预置支架为自膨支架。 [0011] Preferably, the stent is self-expanding stent preset.

[0012]优选地,该覆膜支架为主动脉三分支血管覆膜支架。 [0012] Preferably, the aortic stent graft three branch vessel stent-graft.

[0013]根据本实用新型的另一方面,提供一种用于植入本实用新型提供的覆膜支架的植入系统,该植入系统包括主体导丝、可移动地套设在主体导丝上的导芯、以及可释放地收纳覆膜支架的导鞘,导鞘可移动地套设在导芯外,其中植入系统具有在导鞘释放覆膜支架后调节覆膜支架的轴向位置的调节机构,该调节机构包括可解脱地连接在预置支架上的控制丝。 [0013] According to another aspect of the present invention, there is provided an implant system of the present invention provides implantable stent graft for the body implant system includes a guidewire movably disposed in the sleeve body guidewire the guide core, and is releasably housed stent-graft guiding sheath, the sheath guide sleeve movably disposed outside the guide core, wherein the implant has an axial position adjustment system stent-graft after release of lead sheath stent-graft the adjusting mechanism, the adjusting mechanism comprises a wire releasably connected at a preset control stent.

[0014] 优选地,控制丝包括可解脱地连接在覆膜主体部前端的前端控制丝以及可解脱地连接在覆膜主体部后端的后端控制丝。 [0014] Preferably, the control wire comprises a coating may be releasably connected to the body portion and the distal end of the distal control wire releasably connected to the rear end of the rear end portion of the film body control wire.

[0015]优选地,所述植入系统还包括用于可解脱地套设在所述覆膜支架端部以束缚所述预置支架的鞘膜。 [0015] Preferably, the system further comprises an implant may be releasably disposed in the sleeve end portion of the stent graft to the stent sheath to the preset bound.

[0016] 优选地,所述鞘膜形成为由解脱线单边缝合的筒状结构。 [0016] Preferably, the sheath is formed by the free suture line unilateral cylindrical structure.

[0017] 通过上述技术方案,由于覆膜主体部的端部具有预置支架,能够便于位置调整,并增强覆膜支架的定位能力且不需后续在覆膜主体部内植入支架。 [0017] By the above aspect, since the end portion of the film holder main body portion has a preset, position adjustment can be facilitated, and enhance the ability of the stent graft is positioned and implanted without subsequent coating in the stent body portion.

[0018] 本实用新型的其他特征和优点将在随后的具体实施方式部分予以详细说明。 [0018] Other features of the present invention and advantages will be described in detail in a subsequent portion of the detailed description. 附图说明 BRIEF DESCRIPTION

[0019] 附图是用来提供对本实用新型的进一步理解,并且构成说明书的一部分,与下面的具体实施方式一起用于解释本实用新型,但并不构成对本实用新型的限制。 [0019] The drawings are present to provide further understanding of the invention and constitute a part of this specification, the following detailed description serve to explain embodiments of the present invention, it does not constitute a limitation of the present novel practical pair. 在附图中: In the drawings:

[0020] 图1是本实用新型优选实施方式提供的覆膜支架植入系统在主动脉弓三分支血管内植入覆膜支架的结构示意图; [0020] FIG. 1 is a schematic structural diagram of stent-graft implant system of the present invention a preferred embodiment provided by way of implanted stent graft in the aortic arch three-branch vessel;

[0021] 图2是本实用新型优选实施方式提供的覆膜支架的结构示意图;[〇〇22]图3是鞘膜的结构示意图。 [0021] FIG. 2 is a schematic diagram of the stent-graft structure of the present invention, a preferred embodiment provides; [〇〇22] FIG. 3 is a schematic view of the sheath. 具体实施方式 Detailed ways

[0023] 以下结合附图对本实用新型的具体实施方式进行详细说明。 [0023] Hereinafter, the present invention is described in detail specific embodiments in conjunction with the accompanying drawings. 应当理解的是,此处所描述的具体实施方式仅用于说明和解释本实用新型,并不用于限制本实用新型。 It should be understood that the specific embodiments described herein are only to illustrate and explain the present invention, are not intended to limit the present invention.

[0024] 在本实用新型中,在未作相反说明的情况下,使用的方位词如“内、外”通常是指相应物体轮廓的内和外,“远、近”则是某部件相对于另一部件的远近位置,“前、后”则通常是以支架及相关部件沿血管的植入方向为基础定义的,即,相应部件向前进入血管,向后退出血管。 [0024] In the present invention, the have not been the case to the contrary, the position of the word, such as "inner, outer" as used generally refers to the inner and the corresponding boundary of an object, the "far and near" is a member with respect to distance of the position of the other member, "front, rear" is typically a stand and related components implanted in the blood vessel based on the definition of the direction, i.e., respective forward member into the vessel, vessel back exit. 这些方位词只用于说明本实用新型,并不用于限制本实用新型。 The position of the word only to illustrate the present invention is not intended to limit the invention.

[0025] 如图1至图3所示,本实用新型提供一种带分支的覆膜支架和用于植入该覆膜支架的植入系统。 [0025] As shown in FIG. 1 to FIG. 3, the present invention provides a stent graft with a branch and a system for implantation of implanting the stent graft. 如图2所示,该覆膜支架的覆膜本体包括覆膜主体部201和连接在覆膜主体部201上并与该覆膜主体部201相通的覆膜分支部202,以分别适应带分支的血管结构。 2, the body of the stent graft coating comprises a film body 201 and the connecting portion 202 and to respectively accommodate the branch with the coating film body portion of the branch 201 communicating coating on the body portion 201 vascular structures. 其中在本实施方式中,覆膜主体部201的端部结合有预置支架301。 In the embodiment wherein the present embodiment, the end portion of the film body portion 201 incorporates a bracket 301 presets. 这样,当覆膜支架植入到位后, 通过预置支架301的锚固力能够将覆膜稳定地定位在血管中,从而避免血流对支架的影响, 并且由于设置在主体部的端部,不会对分支部造成影响。 Thus, when the coated stent in place, the stent anchoring force by presetting the coating film 301 can be stably positioned in the blood vessel, blood flow to avoid influence on the stent, and because the body is provided at an end portion, not the branches will be affected. 并且优选地,覆膜主体部的两端分别结合有预置支架301。 And preferably, both end portions of the film are bonded to the main body bracket 301 presets. 使得覆膜的定位更加稳定。 The positioning of the film is more stable. 在其他可能的实施方式中,也可以只有一段设置有预置支架301。 In other possible embodiments, there may be only provided with the preset period of bracket 301.

[0026] 此外,在本实用新型提供的植入系统中,由于覆膜上设置有预置支架301,可以使得下述的前端控制丝和后端控制丝等控制丝直接可解脱地连接到预置支架上,从而不需对覆膜主体部进行孔洞等连接结构的加工,并且使得连接更加稳定可靠。 [0026] Further, in the present invention to provide implant system, since the holder 301 is provided with a pre-coating, can be made following the front end and rear end wire control control control wire like wire may be directly connected to the pre-release the stent placement, so that no portion of the film body processed like holes connecting structure, and so more stable and reliable connection.

[0027] 作为一种实施方式,预置支架301可以预先缝合到覆膜主体部的外壁上,即预置支架301位于覆膜主体部的外壁上,以方便结合。 [0027] As an embodiment, the stent 301 may be pre-sewn to the outer wall of the pre-coating of the body portion, i.e., pre-coating the stent body 301 is located in the outer wall portion to facilitate binding. 在其他实施方式中,预置支架还可以内置于覆膜主体部内壁中,或者在成膜过程中结合入覆膜主体部201中。 In other embodiments, the holder may also be pre-built in the inner wall of the coating film body, the coating or incorporated into the body portion 201 in the film forming process.

[0028] 为了均衡对覆膜施力,预置支架301为与覆膜主体部201紧密结合的环状结构。 [0028] To equalize the urging of the coating, the preset cyclic structure of the stent 301 and coating 201 tightly bound body portion. 从而更好地沿周向均匀支撑覆膜主体部的端部。 Thereby better uniformly along the circumferential end portion of the supporting portion of the film body. 另外,考虑到施力效果并不干涉正常的覆膜分支部血流,优选地,预置支架301从覆膜主体部的端部延伸至相邻的覆膜分支部。 Further, considering the effect of urging the film does not interfere with the normal blood flow branch, preferably, the preset bracket 301 extends from the end portion of the main body portion of the coating film to an adjacent branch. 这样,能够在不影响覆膜分支部血流的同时产生最大的锚定力。 This makes it possible to generate maximum anchoring force without affecting the film branching blood flow.

[0029]作为一种实施方式,预置支架301为自膨支架。 [0029] As an embodiment, preset is self-expanding stent holder 301. 即在覆膜被释放的过程中预置支架也能够随之打开而即使将覆膜锚固到位。 That is preset during stent coating can be released in the film even opens the anchor in place. 作为一种优选结构,预置支架301为丝网结构。 As a preferred configuration, the stent 301 is a preset mesh structure. 在材质上,预置支架301可以与本实用新型后植入的支架的支架主体230相同,例如可以使用金属钽、医用不锈钢及镍钛合金等丝线材料编织为Z型可压缩结构,对于其材料和压缩结构的各种本领域内公知变形均落在本实用新型的保护范围中。 In the material, the stent 301 may be identical to preset the stent of the present invention, the body mount 230 after implantation, may be used, for example, tantalum, stainless steel and nickel-titanium alloy for medical thread material woven in a Z-compressible structure, for which material It is known in the art, and various modification are compressed structure of the present invention fall within the scope of protection.

[0030][植入系统] [0030] [implant system]

[0031]首先,下文将结合图1介绍覆膜支架的覆膜的植入系统、方法,其中,图1示意地显示了本实用新型提供的植入系统的体内部分结构。 [0031] First, in conjunction with below described implant covered stent graft system of FIG. 1, a method, wherein FIG 1 schematically shows the structure of the body portion of the implant system of the present invention provides. 在本实用新型提供的植入系统中,覆膜支架包括形成为筒状结构的覆膜主体部201和连接在该覆膜主体部201上的覆膜分支部202,其中覆膜分支部202的个数取决于所用的血管位置,例如在本实用新型的主动脉弓三分支血管位置,其包括第一覆膜分支部2021、第二覆膜分支部2022和第三覆膜分支部2023以分别适应无名动脉、左颈主动脉和左锁骨下动脉。 In the implant system of the present invention is provided, comprising a stent-graft main body portion is formed as a cylindrical film structure 201 and connected to the main body portion 201 of the coating film branch 202, the branch 202, wherein the coating film the number depends on the position of the vessel used, for example, the present invention in the aortic arch branch vessels three positions, a first coating comprising a branch portion 2021, second stent 2022, and third stent branch branch portion 2023 to respectively accommodate unknown artery, the left common carotid and left subclavian artery aorta. 其中,本实用新型提供的覆膜支架植入方法、系统能够在体外端对覆膜进行轴向位置的调节。 However, the present invention provides a stent graft implantation method, the coating system is capable of adjusting the axial position of the outer end. 其中包括对覆膜主体部201的前端和后端以及覆膜分支部202的前端进行轴向位置的调节。 Wherein a front end including a front end and a rear end, and the coating film branch portion 201 of the body 202 is adjusted axial position. 具体地,可在体外一端,例如后端对覆膜的覆膜主体部201进行朝向两端方向的轴向位置调节以及还能够通过分支血管的导丝对覆膜的覆膜分支部202进行轴向位置调节,从而实现覆膜精确地贴合三分支的血管壁。 Specifically adjusting the axial position, one end may be in vitro, for example, the rear end portion of the coating film body 201 toward both ends of the shaft and also capable of coating film branch 202 branch vessel guidewire adjusting the position, in order to achieve precise coating bonded to the vessel wall three branches. 更进一步地,由于使用了本实用新型提供的覆膜支架,该覆膜支架在植入后既可以通过预置支架锚固定位,不需后续在另行植入主体支架。 Still further, since the present invention provides stent-graft, which stent graft after implantation may be preset by locating the anchor bracket, without a subsequent further implantation in the body frame.

[0032]具体地,如图1所示,本实用新型提供的植入系统包括主体导丝203、分支导丝204、导芯205和导鞘206,其中,导芯205可移动地套设在主体导丝203上、导鞘206收纳覆膜支架的覆膜主体部201和覆膜分支部202,并且导鞘206可移动地套设在导芯205外。 [0032] Specifically, as shown in FIG. 1, the present invention provides an implant system comprising a main guidewire 203, guide wire 204, the lead guide 205 and the guide sheaths 206, wherein the lead guide 205 is movably disposed in the sleeve the guidewire body 203, the guide sheath coating housing body portion 206 of stent-graft 201 and branch portion 202 film, and the conductive sheath 206 is movably disposed on the outer sleeve 205 of the core guide. 其中,植入系统具有在导鞘206释放覆膜后调节覆膜支架的轴向位置的调节机构,该调节机构与覆膜支架可解脱地连接,具体地可解脱地连接在位于端部的预置支架上。 Wherein the implant system has an adjustment mechanism adjusting the axial position of the stent graft after the release film guide sheath 206, stent-graft and the adjusting mechanism can be releasably connected, in particular releasably connected to the end of the pre-positioned set on the stand. 从而在覆膜支架能够与覆膜支架解脱而退出血管外。 In order to be able to release the stent graft and stent graft exit extravascular.

[0033]其中,由于预置支架的存在,后续只需为覆膜分支部分别植入单独的支架即可,而不需为覆膜主体部植入单独的支架。 [0033] wherein, due to the presence of pre-stent, just subsequent to coating each branch stent can be implanted alone, without a separate implanted stent body portion of the film. 此外,为了避免预置支架过早张开而影响覆膜主体部前后端的轴向位置调整,优选地,本实用新型提供的植入系统还包括用于可解脱地套设在覆膜支架端部以束缚预置支架300的鞘膜400。 Further, in order to avoid premature pre-expanded stent to affect the axial position of the film before and after adjustment of the end of the body portion, preferably, the present invention provides a system further comprising a stent-graft implant end portion for releasably sleeved bound to pre-sheath holder 300 400. 这样,当覆膜主体部在从导鞘推出并调整到位后再从端部解脱鞘膜即可释放预置支架。 Thus, when the coating in the body portion and then introduced and adjusted in place to release the sheath from the end portion of the stent is released from the preset guiding sheath. 具体地,作为一种实施方式,如图3所示,鞘膜400形成为由解脱线500单边缝合的筒状结构。 Specifically, as an embodiment, shown in Figure 3, the sheath 400 is formed of suture 500 unilateral cylindrical configuration by relief line. 这样,只需在体外端操作解脱线解脱,即可完成释放鞘膜的操作,从而使得预置支架张开而实现对覆膜主体部的锚定,另外鞘膜在后续程序中可取出也可随覆膜支架留在体内。 Thus, just at the free end of the operating wire vitro release, to complete the operation of the release of the sheath, so that the pre-expanded stent to achieve anchoring of the main body portion of the film, may be additionally sheath can be removed in a subsequent procedure remain in the body with the stent graft.

[0034]下面详细介绍本实用新型中,覆膜支架的植入系统和方法。 [0034] The following detailed description of the present invention, the stent graft implant system and method.

[0035]主体导丝203优选为超硬导丝能够从后向其插入血管中以起到为后续部件导向的作用。 [0035] The body 203 is preferably cemented guidewire guidewire can be inserted into the blood vessel from its rear part to function as a guide of the follow-up action. 其中导芯205上固定有位于覆膜支架的覆膜主体部201的前方的导引头2051,该导引头2051具有圆锥形状或其他流线型结构以能够引导导芯205沿血管壁无损移动,其中,导芯205内部为空心结构以套设在主体导丝203外部并沿该主体导丝203轴向移动,分支导丝204的个数取决于分支血管的个数,在本实用新型的主动脉弓三分支血管位置,分支导丝204包括第一分支导丝2041、第二分支导丝2042和第三分支导丝2043以分别对应主动脉上的三个分支血管。 Wherein the guide core 205 is fixed to the main body portion coating the stent graft positioned in front of the guide head 201 2051, 2051 of the guide head has a conical shape or other streamlined structure to guide the guide core can be moved along the vessel wall 205 lossless, wherein , a hollow inner conductor 205 of the core structure 203 provided in the outer sleeve body 203 along the axial direction of the guidewire and guidewire movement of the body, the guide wire 204 the number depends on the number of the branch vessel, the present invention in the aortic arch three branch vessel position, the guide wire 204 comprises a first guide wire 2041, a second guide wire and a third branch guidewire 2042 to 2043 respectively correspond to the three aortic branch vessels. 导鞘206为空心结构以能够收纳压缩后的覆膜支架,并且导鞘206可以通过向后延伸出体外端而得到控制,例如位于体外端的手柄。 Guide sheath 206 is a hollow structure of the stent graft to be capable of accommodating compression, and the guide sheath 206 may be controlled by extending rearwardly out of the body side, for example, located at the outer end of the handle. 导鞘206可移动地套设在同样向后延伸的导芯205外侧,以既能够受控随导芯205同步运动还能沿导芯205移动。 Guide sheath 206 movably disposed in the sleeve 205 to the outside, can be controlled in both the core 205 with the synchronous movement of the moving guide 205 of the guide core can also extend rearwardly along the guide core. 另外,导鞘206的前端与导引头2051不具有连接关系,例如可以抵靠在导引头2051上也可以与导引头2051具有一定间隔地定位,以能够在需要释放覆膜支架时,控制导鞘206向后撤离覆膜支架,从而释放覆膜支架。 Further, the guide sheath and the distal end 206 of the guide head 2051 does not have the connection relation, for example, against the guide head 2051 may be positioned with a certain interval 2051 with the seeker, the need to be able to release the stent-graft, the the control guide sheath 206 rearward withdrawal of the stent graft to release the stent graft. 此时导鞘206可撤出到释放覆膜支架即可,以用于作为后续支架植入时的通道之用。 At this time, the guide sheath 206 may be withdrawn to release the stent-graft, for use as a passage of time subsequent stent implantation.

[0036] 其中,为了实现在释放覆膜支架后对覆膜支架的覆膜主体部201的轴向位置的精确调整和定位,本实用新型提供的调节机构包括前端控制丝207和后端控制丝208,这两种控制丝分别采用各种本领域公知的可解脱的方式,例如电解脱、机械解脱的方式连接在覆膜的覆膜主体部201的前端和后端,例如上述的预置支架301上。 [0036] wherein, in order to achieve accurate adjustment of the axial position of the film and positioning the body portion of the stent-graft 201 after releasing the stent-graft, the present invention provides the adjustment mechanism 207 includes a front end and a rear wire control wire control 208, two control wires are a variety of ways known in the art may be freed, for example free electrical and mechanical relief front and rear ends are connected in film coating the body portion 201, for example, above-mentioned pre bracket 301. 其中,电解脱的方式可通过相关丝线在体外施加电流以将连接结构熔化而释放从而实现相应部分的分离方式。 Wherein electrical current may be applied free manner to the connecting structure to achieve melting and separation mode release by the relevant corresponding portion of the wire in vitro. 另外控制丝的个数和连接位置不做限制,只要能够稳定拉动覆膜主体部201即可。 And a number of additional control wire connection position is not limited as long as the film is pulled stably to the body portion 201. 例如,在本实用新型的优选实施方式中,前端控制丝207和后端控制丝208均为三根,并且沿覆膜主体部201 的周向等间隔布置,这样可以实现稳定地拉动覆膜主体部201朝向前方或后方移动。 For example, the present invention in a preferred embodiment, the front end of the control wire 207 and the rear end of the control wire 208 are three, and are arranged at equal intervals along the circumferential direction of the body portion 201 of the coating, so that coating can be achieved stably pull the body portion 201 move toward the front or rear. 其中需要说明的是,图1中为了清楚显示后端控制丝208和分支导丝204,没有将三根后端控制丝208显示为的沿周向等间隔布置的方式,这并构成对本实用新型的限制。 Wherein Note that, in FIG. 1 for clarity of the rear end of the control wire 208 and guide wire 204, not the three rear end of the control wire 208 is shown as circumferentially arranged in equal intervals, this does constitute the present invention limit.

[0037] 为了实现在体外一端朝向两侧拉动调节覆膜主体部201,作为一种优选实施方式, 本实用新型的调节结构包括转向传动结构209,该转向传动结构209能够使得相应的控制丝转向。 [0037] In order to achieve an end pulled toward both in vitro adjustment film body portion 201, as a preferred embodiment, the adjustment mechanism of the present invention includes a steering transmission structure 209, the structure of the steering gear 209 can be controlled such that the respective steering wire . 本实用新型在本实用新型中的优选实施方式,本实用新型可以使得前端控制丝通过该转向传动结构209转向后向后延伸,即可以在后方的体外端实现对覆膜支架前端的拉动, 结合以向后延伸的后端控制丝208,本实用新型提供的植入系统能够实现在后方的体外端实现对覆膜支架两端的拉动。 In the present invention, the present invention in a preferred embodiment, the present invention can be controlled such that the front end of the steering wire extends rearwardly through the rear steering transmission structure 209 that may be implemented on the film to pull the distal end of the stent end of the rear vitro, binding the rear end of the control wire 208 extends rearwardly, the present invention provides an implant system can be implemented to achieve both ends pulling the stent graft in vitro rear end. 具体地,转向传动结构209设置在覆膜主体部201的前方即可。 In particular, the structure of the steering gear 209 can be disposed in front of the main body portion 201 of the coating film. 需要说明的是,在其他实施方式中,在后端向前调节覆膜支架前端的方式还可以将前端控制丝207与导芯205相连,具体地,可直接连接在导芯205上或连接在导引头2051上以间接与导芯205相连,这样当需要向前调节覆膜支架前端时,只需向前推动导芯205即可。 Note that, in other embodiments, the adjustment at the rear end forwardly further embodiment stent graft distal end may be the front control wire 207 is connected with the guide core 205, in particular, it can be directly connected to the connector 205 or the guide core when indirectly connected with the guide core 205, so that when the stent-graft needs to move the front end of the adjusting seeker 2051, only the core 205 is pushed forward to the guide.

[0038] 另外在其他实施方式中,实现对覆膜支架后端拉动的方式不止使用后端控制丝208—种还可以有其他方式,例如不设置后端控制丝208只通过血流推动覆膜的后端与血管壁紧贴。 [0038] Further, in other embodiments, the rear end of the stent graft to achieve the pull wire control mode than a back-end 208- species can also have other ways, for example, without providing the rear end of the control wire 208 to promote the flow of blood through the coating the rear end of the vessel wall close. 对于此类变形方式均均应落在本实用新型的保护范围中。 For such modification shall fall within the scope of the present embodiment are the protection disclosure. [〇〇39]在本实用新型的优选实施方式中,具体地,前端控制丝207可移动地穿过导芯205, 转向传动结构209设置在导芯205上,优选地,设置在导引头2051上。 [〇〇39] In the present invention a preferred embodiment, in particular, the front end of the control wire through the guide 207 to be movable core 205, the steering gear 209 is disposed on the guide structure of the core 205, preferably disposed seeker 2051 on. 其中转向传动结构209 可以为形成在导引头2051上的转向孔,该转向孔可以直接在导引头2051上开孔得到,也可以通过设置连接在导引头2051上的导向环而得到。 Wherein the steering transmission structure 209 may be formed on the head 2051 of the guide hole steering, steering the hole may be obtained directly from the seeker aperture 2051, and may be connected to give the guide ring on the guide 2051 by setting the head. 这样,前端控制丝207可从覆膜主体部201的前端引出后穿入导芯205内并沿导芯205向后延伸。 Thus, the front end of the control wire 207 may penetrate the inner conductor core 205 from the front end of the body portion 201 and the lead coating extends rearwardly along the guide core 205. 因此,当需要向前侧移动覆膜主体部201时,只需在后方的体外端拉动前端控制丝207,即可实现将覆膜主体部201向前拉动, 整体结构简单巧妙。 Accordingly, when the coating film needs to move toward the front side main body portion 201, the outer end of the rear simply pulling the control wire 207 to the distal end, the coating can be achieved body portion 201 is pulled forward, ingeniously simple overall structure.

[0040]另外,后端控制丝208可以直接通过可解脱的方式连接在覆膜主体部201的后端, 并从后端引出后穿入导鞘206内并沿导鞘206向后延伸。 [0040] Further, the rear end of the control wire 208 may be directly connected by disengageable manner at a rear end portion of the film body 201, the guide sheath and threaded from the rear end 206 and the inner lead 206 extends rearwardly along the guide sheath. 这样,当需要向后方拉动覆膜主体部201时,直接在后方的体外端操作向后拉动后端控制丝208即可使得覆膜主体部201向后移动。 Thus, when the need to pull the film body 201 to the rear portion, the rear end of the control wire is pulled directly rearwardly in vitro rear end of the operating body 208 can be such that the coating unit 201 is moved rearwardly. 因此,本实用新型提供的植入系统和方法能够在一个体外端实现对覆膜主体部201的轴向位置的精确调整。 Thus, the implant system and method of the present invention can provide a precise adjustment of the axial position of the body portion 201 of the film at one end vitro.

[0041 ]上述介绍了覆膜主体部201的轴向位置的调整,下面介绍覆膜分支部202的轴向位置的调整。 [0041] The above-described coating film to adjust the axial position of the main body portion 201, the following describes how to adjust the axial position of the branch portion 202 of the coating film. 其中,由于覆膜主体部201的存在,植入系统只需对覆膜分支部202实现向前方的拉动以贴合血管壁即可,而不需向后方拉动覆膜分支部202。 Wherein the main body portion 201 due to the presence of the coating, the coating on the implant system only the branch portion 202 is pulled forward to achieve bonding to the vascular wall, without pulling the film 202 backward branch. 因此,本实用新型创造性地利用分支导丝204对覆膜分支部202的轴向位置进行调整,其中分支导丝204穿入向后延伸的导鞘206中以沿导鞘206向后延伸。 Accordingly, the present invention is the use of the inventive guide wire branch 204 pairs of coating film 202 is adjusted axial position, wherein the guide sheath 206 penetrates the guide wire 204 extends rearwardly to extend along the guide sheath 206 rearward. 具体地,为了实现通过分支导丝204对覆膜分支部202的调整,调节机构包括设置在分支导丝204上的限位结211,并且覆膜分支部202上设置有限位孔210,其中限位结211的尺寸大于限位孔210的尺寸,限位孔210位于限位结211的前方。 Specifically, in order to realize the adjustment film 202 by branch guide wire 204 pairs, the adjustment mechanism comprises a guide wire disposed in the junction 204 of the stopper 211, and a limiting aperture 210 is provided on the film branch 202, which limits 211-bit result is larger than a size limit of 210 pore size, limiting hole 210 is located in front stopper knot 211. 这样,当需要向前拉动覆膜分支部202时,只需向前拉动分支导丝204,限位结211即会卡在限位孔210上从而带动覆膜分支部202向前运动。 Thus, when it is desired film pulled forward branch 202, only the forward guide wire 204 is pulled, the stopper knot 211 will be caught on the stopper i.e. bore 210 so as to drive the film branch 202 forward.

[0042] 其中,限位结211的形成方式可以是两根导丝通过绕结方式而成,也可以在导丝上连接额外部件而成。 [0042] wherein, the stopper knot 211 may be formed in two ways guidewire from about invoicing, additional components may be connected together over the guidewire. 其中优选地,限位结211可解脱地设置在分支导丝204中,例如将两根导丝采用可解脱的方式(电解脱、机械解脱等)前后绕接而成。 Wherein preferably, the stopper knot 211 can be releasably disposed in the guide wire 204, for example using the two guide wire disengageable manner (free electrical and mechanical relief and the like) from the front and rear wrap. 该限位结211是否需要与分支导丝204解脱取决于分支导丝204最后的撤出方式,如果采用分支导丝204从前方撤出的方式,则需要限位结211为与分支导丝204为可解脱的方式形成,如果采用分支导丝204从后方撤出的方式,则不需限位结211与分支导丝204解脱,直接从后方撤出分支导丝204即可。 The stop junction 211 whether the guide wire 204 needs to release the guide wire 204 depending on the withdrawal of the last embodiment, if the guide wire 204 is withdrawn from the front, you'll need to stop junction 211 and guide wire 204 it is formed to be free manner, if the guide wire 204 from rearward withdrawal embodiment, without limiting the junction 211 and guide wire 204 release, the guide wire 204 can be withdrawn directly from the rear.

[0043]另外,形成限位孔210的方式可以为在覆膜分支部202上连接限位环而成,该限位环可以由能够植入人体的金属形成。 [0043] Further, the stopper hole 210 is formed may be obtained by ring-connected manner on the stopper film branch 202, the stop ring may be formed of metal can be implanted in the body. 由于尺寸较小,该限位环可以随覆膜支架留置在患者体内,而不会造成血管病变。 Due to the small size, the retaining ring can be retained with the stent graft in a patient, without causing vascular lesions. 此外,为了不影响分支导丝204的导引,优选采用连接线将限位环与覆膜分支部202连接,以使二者间隔设置,这样可以减少分支导丝204对覆膜分支部202的磨损。 Further, in order not to affect the guide wire 204 is guided, preferably using the stopper ring connection line branch 202 is connected with the film, so that the two intervals, thus reducing the guide wire branch 204 pairs of coating 202 abrasion. 为了有效拉动覆膜分支部202,连接线为多根并沿周向均应地与覆膜分支部202可解脱地连接,因此限位环位于覆膜分支部202的径向中心,以使得分支导丝204更有效地拉动覆膜分支部202,此时,连接线可以与覆膜分支部202可解脱,因此在解脱后,限位环可随分支导丝204向前撤出,此时无需限位结可解脱。 In order to effectively pull the film branch portion 202, and is connected to a plurality of lines 202 may be releasably connected to the coating should branch to the circumferential direction, thus retaining ring located radially central branch 202 of the coating film, so that the guide wires 204 more effectively pulling the film branch 202, at this time, the connection line 202 may be coated with a release branch, so after liberation, the stop ring can be withdrawn forwardly over the guide wire 204, this time without limit knot can escape. 这样,将限位环撤出后,不会干扰后期血管中血液的流通。 Thus, after the withdrawal of the stop ring, the latter does not interfere with the flow of blood vessels. 另外,限位结211和限位孔210还具有其他变形方式,只要不脱离本实用新型的构思,各种变形均落在本实用新型的保护范围中。 Further, the stopper 211 and the stopper knot holes 210 further have other modified mode without departing from the concept of the present invention, various modifications as fall within the scope of protection of the present invention.

[0044] 此外如图1所示,由于后端控制丝208和分支导丝204穿入导鞘206内部,为了避免干扰到后期支架的植入,可以在导鞘206内壁上设置沿导鞘206延伸方向延伸的导丝收纳槽,使得相应的丝线只在导鞘206的内壁上延伸而不会影响到后期仍要穿过导鞘206的支架植入。 [0044] Further shown in Figure 1, since the rear end of the control wire 208 and guide wire 204 to penetrate inside the guide sheath 206, in order to avoid interference with post-implant the stent, the sheath 206 may be provided along the guide in the inner wall of the guide sheath 206 guide wire accommodating groove extending in the extending direction, so that the corresponding guide wires only on the inner wall of the sheath 206 to extend without affecting the post-stent implantation through the guide sheath 206 still.

[0045]当本实用新型的覆膜支架和覆膜分支部的支架均精确定位后,可将植入系统的导芯205、导鞘206、各种丝线以及支架输送装置向后撤出人体血管,从而完成本实用新型提供的覆膜支架的完整植入过程。 [0045] When the stent-graft of the present invention and branch stents are coated precise positioning, the system may be implanted guide core 205, the guide sheaths 206, the various wires and rearward withdrawal of the stent delivery device body vessel , thereby completing the complete implantation procedure of the present invention provides a stent graft. 需要说明的是,本实用新型的覆膜支架植入方法中,支架的植入还可以采用其他本领域公知的支架植入技术,也可以使用本实用新型如图1中公开的分支血管的植入方式进行后期支架的植入,对于各种支架植入的变形方式均落在本实用新型的保护范围中。 Incidentally, the present invention stent graft implantation method, a stent may also be employed known in the art other stent implantation techniques can also be used in the disclosed plant branch vessel 1 of the present invention in FIG. the post-stent implantation manner, for modification various stents are outside the scope of protection of the present invention.

[0046]综上,本实用新型重点介绍了用于主动脉弓三分支血管的覆膜支架的植入系统、方法以及所使用的覆膜支架,这能够使得覆膜支架的定位精确,并且结构简单操作方便,具有较高的实用性和推广价值。 [0046] In summary, the present invention focuses on the implant system for a stent graft aortic arch three-branch vessel, the stent graft and the method used, which enables precise positioning of the stent graft, and the structure is easy to operate convenient, has high practicability and value.

[0047]以上结合附图详细描述了本实用新型的优选实施方式,但是,本实用新型并不限于上述实施方式中的具体细节,在本实用新型的技术构思范围内,可以对本实用新型的技术方案进行多种简单变型,这些简单变型均属于本实用新型的保护范围。 [0047] The above detailed description of the preferred embodiment of the present invention accompanying drawings, but the present invention is not limited to the specific details of the above embodiment, the present invention within the scope of the technical concept, the present invention can be in the art scheme various simple modifications, such simple modifications are within the scope of protection of the present invention. [〇〇48]另外需要说明的是,在上述具体实施方式中所描述的各个具体技术特征,在不矛盾的情况下,可以通过任何合适的方式进行组合,为了避免不必要的重复,本实用新型对各种可能的组合方式不再另行说明。 [〇〇48] Further Incidentally, the respective specific technical features of the above described embodiments, in the case where not contradictory, may be combined in any suitable manner, in order to avoid unnecessary repetition, the present invention the new variety of possible combinations without further explanation.

[0049]此外,本实用新型的各种不同的实施方式之间也可以进行任意组合,只要其不违背本实用新型的思想,其同样应当视为本实用新型所公开的内容。 [0049] Further, the present invention between the various embodiments may be arbitrarily combined as long as it does not departing from the idea of ​​the present invention, which should also be regarded as the present invention is disclosed.

Claims (10)

1.一种带分支的覆膜支架,包括覆膜主体部(201)和连接在该覆膜主体部(201)上的覆膜分支部(202 ),其特征在于,所述覆膜主体部(201)的端部结合有预置支架(301)。 1. A tape branched stent graft coating comprising a body portion (201) and a body portion connecting the coating film branch (202) (201), wherein the coating film body portion (201) joining the ends of the stent with a preset (301).
2.根据权利要求1所述的覆膜支架,其特征在于,所述覆膜主体部的两端分别结合有所述预置支架(301)。 The stent-graft of claim 1, wherein both ends of the film are bonded to the main body portion of the pre-support (301).
3.根据权利要求1或2所述的覆膜支架,其特征在于,所述预置支架(301)为与所述覆膜主体部(201)紧密结合的环状结构。 Stent-graft according to claim 1 or claim 2, characterized in that the preset bracket (301) is a cyclic structure with the coating cohesive body portion (201).
4.根据权利要求1所述的覆膜支架,其特征在于,所述预置支架(301)从所述覆膜主体部的端部延伸至相邻的所述覆膜分支部。 4. The stent graft according to claim 1, wherein said preset bracket (301) extending from an end portion of the main body portion of the film adjacent to the film branch.
5.根据权利要求1所述的覆膜支架,其特征在于,所述预置支架(301)为自膨支架。 5. The stent graft according to claim 1, wherein said preset bracket (301) is a self-expanding stent.
6.根据权利要求1所述的覆膜支架,其特征在于,所述覆膜支架为主动脉三分支血管覆膜支架。 6. The stent graft according to claim 1, wherein said stent graft is a three-branch vessel stent-graft aorta.
7.—种用于植入根据权利要求1-6中任意一项所述的带分支的覆膜支架的植入系统, 其特征在于,该植入系统包括主体导丝(203)、可移动地套设在所述主体导丝(203)上的导芯(205)、以及可释放地收纳覆膜支架的导鞘(206),所述导鞘(206)可移动地套设在所述导芯(205)外,其中所述植入系统具有在所述导鞘(206)释放所述覆膜支架后调节所述覆膜支架的轴向位置的调节机构,该调节机构包括可解脱地连接在所述预置支架(301)上的控制丝。 7.- species for implantation according to claim 1-6 implant system of any one of said stent graft with branch, wherein the implant body includes a guidewire system (203), movable guide core sleeved on said main guide wire (203) (205), and guiding the sheath is releasably housed stent-graft (206), said conductive sheath (206) movably disposed in said sleeve guide core (205), a system wherein the implant has an adjustment mechanism of the stent-graft after adjustment of the guide sheath (206) to release the axial position of the stent-graft, the adjusting mechanism comprises releasably the connection control in said preset wire holder (301) on.
8.根据权利要求7所述的植入系统,其特征在于,所述控制丝包括可解脱地连接在所述覆膜主体部(201)前端的前端控制丝(207)以及可解脱地连接在所述覆膜主体部(201)后端的后端控制丝(208)。 8. The implant system of claim 7, wherein said control comprises a wire releasably connected to the coating film body portion (201) distal tip of the control wire (207) and releasably connected to the coating the body portion (201) of the rear end of the rear end of the control wire (208).
9.根据权利要求7所述的植入系统,其特征在于,所述植入系统还包括用于可解脱地套设在所述覆膜支架端部以束缚所述预置支架(301)的鞘膜(400)。 9. The implant system of claim 7, wherein said system further comprises an implant may be releasably disposed in the sleeve portion of the stent graft to be bound to the preset end bracket (301) sheath (400).
10.根据权利要求9所述的植入系统,其特征在于,所述鞘膜(400)形成为由解脱线(500)单边缝合的筒状结构。 10. The implant system according to claim 9, wherein said sheath (400) is formed by the free line (500) stitched unilateral cylindrical structure.
CN201620199315.8U 2016-03-15 2016-03-15 Take ramose tectorial membrane support and implantation system thereof CN205612594U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017157081A1 (en) * 2016-03-15 2017-09-21 北京奇伦天佑创业投资有限公司 Covered stent with branches and implantation system thereof

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6352561B1 (en) * 1996-12-23 2002-03-05 W. L. Gore & Associates Implant deployment apparatus
US5984957A (en) * 1997-08-12 1999-11-16 Schneider (Usa) Inc Radially expanded prostheses with axial diameter control
US7147661B2 (en) * 2001-12-20 2006-12-12 Boston Scientific Santa Rosa Corp. Radially expandable stent
KR100601969B1 (en) * 2004-06-15 2006-07-14 주식회사 에스앤지바이오텍 Artificial blood vessel stent
US20050288766A1 (en) * 2004-06-28 2005-12-29 Xtent, Inc. Devices and methods for controlling expandable prostheses during deployment
US20110270379A1 (en) * 2010-04-29 2011-11-03 Medtronic Vascular, Inc. Mobile External Coupling for Branch Vessel Connection
CN102370532B (en) * 2010-08-13 2015-06-17 黄连军 Collateral type tectorial membrane support frame conveyor as well as installing method
CN203935299U (en) * 2014-06-25 2014-11-12 李雷 Covering membrane implanting system and implanting system with covering membrane and stent implanted respectively
CN205612594U (en) * 2016-03-15 2016-10-05 北京奇伦天佑创业投资有限公司 Take ramose tectorial membrane support and implantation system thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017157081A1 (en) * 2016-03-15 2017-09-21 北京奇伦天佑创业投资有限公司 Covered stent with branches and implantation system thereof

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