CN104706444B - Left ventricular volume reduction means - Google Patents

Left ventricular volume reduction means Download PDF

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Publication number
CN104706444B
CN104706444B CN201510094749.1A CN201510094749A CN104706444B CN 104706444 B CN104706444 B CN 104706444B CN 201510094749 A CN201510094749 A CN 201510094749A CN 104706444 B CN104706444 B CN 104706444B
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apex
support frame
end
left ventricle
support
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CN201510094749.1A
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Chinese (zh)
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CN104706444A (en
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王超
杨永森
陈娟
罗鹏
李博
蒲忠杰
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上海形状记忆合金材料有限公司
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • 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
    • A61F2/24Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices

Abstract

本发明提供一种左心室减容装置,它包括由形状记忆合金制作而成的支撑架,支撑架上覆盖有高分子膜;支撑架从左心室的心尖释放至左心室内时,支撑架的释放后的形状与左心室的内壁相适应,支撑架远离心尖的一端设有向外伸出的支撑端,支撑端卡在左心室的内壁上,支撑架靠近心尖的一端设有与推送杆可拆卸连接的连接套。 The present invention provides a left ventricular volume reduction device, which includes a support frame made from a shape memory alloy, the support frame is covered with a polymer film; the supporter is released from the apex of the left ventricle to the left ventricle, the support frame shape of the inner wall of the left ventricle and adapted to release the support frame is provided with supporting end away from the apex end of the outwardly extending end of the card is supported on the inner wall of the left ventricle, the support frame is provided near one end and the apex of the push rod Removing connecting sleeve connection. 该左心室减容装置,可隔离左心室没有功能的心室区域,减少收缩和舒张容积,降低左心室张力,改善左心室重构和心衰患者的心功能;采用介入途径,并开创微创经心尖的设计,将创伤降低到最小;经心尖途径或介入途径中减小输送鞘管直径的设计,避免损伤血管和心脏瓣膜等的风险;采用定位座、心尖定位器等设计,定位好且贴合张力强。 The left ventricular volume reduction device, may be isolated from the ventricular region of the left ventricle does not function, reduced shrinkage and diastolic volume, decreased left ventricular tension, improve left ventricular remodeling and heart failure in patients with cardiac function; interventional route and create a minimally invasive apex designed to minimize the wound; transapical intervention pathway or reduce the diameter of the delivery sheath design, to avoid the risk of damage to blood vessels and heart valves, etc.; with the positioning seat, the apex locator design, the positioning and good paste co-Zhang Liqiang.

Description

左心室减容装置 Left ventricular volume reduction means

技术领域 FIELD

[0001] 本发明涉及一种左心室减容装置。 [0001] The present invention relates to a left ventricular volume reduction means.

背景技术 Background technique

[0002]心力衰竭是大多数心血管疾病的最终归宿,也是主要的死亡原因,全世界将近有23〇〇万人患有该疾病。 [0002] Heart failure is the final destination of the majority of cardiovascular disease and a major cause of death worldwide nearly 23〇〇 million people suffer from the disease. Parachute是第一个基于导管技术设计的经皮左室重建装置,该项技术最早报道于2007年,之后在国外逐渐开展,积累了上百例的经验,并于2011年获得欧洲CE 认证,结果显示可以有效减轻心力衰竭患者的临床症状,改善心功能,可将晚期心衰患者的五年存活率从30%提高至80%,目前已在欧美应用超过500例。 Parachute is the first device based on percutaneous left ventricular reconstruction technical design of the catheter, the technology was first reported in 2007, then gradually carried out abroad, gained experience on one hundred cases, and the European CE certification in 2011, the results display can effectively reduce symptoms in patients with heart failure, improve heart function in patients with advanced heart failure can be increased from five-year survival rate of 30-80%, has more than 500 cases of the application in Europe.

[0003] 我国心衰患病率0 • 9%,北方地区1.4%,约有400万心衰患者。 [0003] The prevalence of heart failure 0 • 9%, 1.4% northern region, about 4 million patients with heart failure. 据估计,我国急性心肌梗死的发病率约为45/10万〜55/10万,目前还呈上升趋势。 It is estimated that the incidence of acute myocardial infarction in our country is about 45/10 Wan ~ 55 / 100,000, is still on the rise.

[0004] 一般心衰尤其是慢性过程时均有心脏扩大,以左心室扩大为主,患者生活质量明显下降,临床预后较差,造成巨大的医疗和社会负担。 [0004] generally have heart failure, especially chronic cardiac enlargement process, mainly to left ventricular dilatation, decreased quality of life of patients and poor clinical outcomes, resulting in huge medical and social burden. 左心室减容术(partial left ventriculectomy,PLV)是近年来治疗晚期扩张型心肌病的一种手术方法,由巴西医师Batista在1的6年首次提出。 Left ventricular volume reduction surgery (partial left ventriculectomy, PLV) is a surgical method in recent years, treatment of advanced dilated cardiomyopathy, was first proposed by the Brazilian physician Batista in six years 1. 左心室减容术在国内又称作“部分左室切除术”或者“保留性左室切除术”,但左心室减容术存在着较高的心力衰竭、心律失常相关的病死率,限制了其在临床的广泛应用。 Left ventricular volume reduction surgery, also referred to in the country "section of left ventricle resection" or "reserved LV resection," left ventricular volume reduction but there is a high failure, arrhythmia-related mortality, limits it is widely used in clinical.

[0005]经皮心室重建术(percutaneous ventricular restoration,PVR)是治疗减轻心衰症状的新途径,它是针对陈旧前壁心肌梗死伴心力衰竭患者的前沿治疗方法,通过微创介入的方法在患者的心脏内植入了“降落伞”(CardioKinetix公司Parachute),有效改善了心力哀竭患者的临床症状。 [0005] Percutaneous ventricular reconstruction (percutaneous ventricular restoration, PVR) is a new way to treat alleviate the symptoms of heart failure, which is the cutting-edge method for the treatment of patients with old myocardial infarction, heart failure, minimally invasive method in patients implanted in the heart of the "parachute" (CardioKinetix company parachute), effectively improve the clinical symptoms of patients with sorrow dried up effort. 在心脏病发作后,很多左心患者会有左室扩张从而导致心输出量减少,造成心衰症状如气短等。 After a heart attack, many heart patients have left ventricular dilatation resulting in reduced cardiac output, resulting in heart failure symptoms such as shortness of breath and so on. 缺血性心脏病会引发心衰症状即左室功能障碍,植入“降落伞”后“降落伞”将损伤的肌肉隔离,从正常部分孤立功能失常的肌肉部分,这样就减少了总体的心容积并恢复更加正常的左室功能。 Ischemic heart disease can cause symptoms of heart failure, left ventricular dysfunction, ie, after implantation "parachute" "parachute" the isolation muscle injury, disorders of muscle function in isolation from the normal part of the section, thus reducing the overall volume of the heart and resume more normal left ventricular function. 经皮心室重建术的适应症为陈旧性前壁心肌梗死伴前壁无运动或反常运动、左室射血分数下降者,手术70分钟以上,需半麻,术前行超声和心脏CT来测量心室尺寸,选择大小合适的“降落伞”。 Percutaneous ventricular reconstruction is indicated for the old myocardial infarction with or without moving the front wall motion abnormalities, decreased left ventricular ejection fraction, surgical more than 70 minutes, as half hemp, preoperative cardiac CT and ultrasound to measure ventricular size, selecting the right size "parachute."

[0006] 然而,Parachute也存在缺点和很大的操作难度:1、植入器械由于主要靠支撑端扎入心室内壁定位,因而直径较大,导致输送系统直径大,从而导致介入途径进入人体血管和心脏有损伤血管和心脏瓣膜等的风险;2、主动脉瓣对植入器械的阻力,通过难度大,手术复杂度高,手术时间长,很大程度上增加了手术危险性降低手术成功率;3、器械的定位和贴合张力要求高,因此在释放时需要借助球囊扩张才能定型。 [0006] However, there are also disadvantages Parachute and great difficulty of the operation: 1, mainly due to the implantation instrument into the ventricle against the support bar end positioning inner wall, and thus a larger diameter, resulting in a large diameter delivery system, resulting in vascular interventional pathway into the body and the risk of heart damage blood vessels and heart valves, etc.; 2, resistance to aortic valve implantation devices, through difficult, high complexity surgery, surgery for a long time, greatly increases the risk of surgery to reduce the success rate of surgery ; 3, positioning instruments and high tension bonding requirements, when released by the need to balloon shape.

发明内容 SUMMARY

[0007]鉴于以上所述现有技术的缺点,本发明的目的在于提供一种左心室减容装置,用于解决现有技术中经皮心室重建术植入器械较大、风险高、手术成功率低等问题。 [0007] In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide a left ventricular volume reduction means for solving the prior art by large ventricular reconstruction percutaneous implantation instrument, high risk surgical success rate and other issues.

[0008]为实现上述目的及其他相关目的,本发明提供一种左心室减容装置,它包括由形状记忆合金制作而成的支撑架,支撑架上覆盖有高分子膜;支撑架从左心室的心尖释放至左心室内时,支撑架的释放后的形状与左心室的内壁相适应,支撑架远离心尖的一端设有向外伸出的支撑端,支撑端卡在左心室的内壁上,支撑架靠近心尖的一端设有与推送杆可拆卸连接的连接套。 [0008] To achieve the above objects and other related objects, the present invention provides a left ventricular volume reduction means comprising a shape memory alloy made of the support frame made of the support frame covered with a polymer film; support frame from the left ventricle when released into the apex of the left ventricle, the left ventricle and the inner wall shape of the support frame adapted to release the support frame is provided with supporting end away from the apex end of the outwardly extending end of the card is supported on the inner wall of the left ventricle, the support frame is provided near one end connected to the apex of the sleeve and detachably connected to a push rod.

[0009]优选的,支撑架由多根支撑骨组成,多根支撑骨靠近心尖的一端合并至一起,并与连接套连接,支撑骨远离心尖伸出至高分子膜覆盖区域外部的一端形成支撑端。 [0009] Preferably, the support frame supported by a plurality of bone composition, a plurality of supporting an end of the bone near the apex to merge together, and connected to the connecting sleeve, the support rib extending away from the apex to the end of the film outside the coverage area of ​​a polymer forming the support end .

[0010]进一步的优选,支撑骨的支撑端为外翻后再向内卷曲的支撑卷边,支撑卷边的平滑段与左心室的内壁相抵接。 [0010] Further preferably supported end, the supporting bone is then inwardly crimped valgus support bead, against smooth inner wall of the supporting bead segments of the left ventricle and connected.

[0011] 进一步的优选,多个支撑骨靠近心尖的一端形成一个向远离心尖的方向凹陷的凹口,连接套位于该凹口内。 [0011] Further preferably, a plurality of supporting bone near the apical end of a recess formed in a direction away from the apex of the recess, the connection sleeve positioned within the recess.

[0012]进一步的优选,支撑架还包括编织网,编织网覆盖在多根支撑骨组成的支撑面上, 高分子膜覆盖在编织网上。 [0012] Further preferably, the support frame further comprises a woven mesh, braided mesh covering the support surface of the support rib consisting of a plurality of polymer film covering the braided web.

[0013] 优选的,支撑架由编织网组成,支撑架的支撑端为从编织网远离心尖的一端向外伸出的多根支撑丝。 [0013] Preferably, the woven mesh support frame composed of a plurality of support filaments end of the support frame supporting one end remote from the apex of the outwardly projecting from a woven mesh.

[0014]进一步的优选,高分子膜覆盖在编织网的内部或外部上。 [0014] Further preferably, the polymer film is coated on the inside or outside of the braided mesh.

[0015] 优选的,支撑架由多层编织网组成,高分子膜夹在相邻两层编织网之间。 [0015] Preferably, the supporting frame consisting of a multilayer braided mesh, a polymer film sandwiched between two adjacent layers braided mesh.

[0016]优选的,支撑架靠近心尖的一端还设有定位座,定位座由形状记忆合金编织而成, 定位座沿支撑架的周向均匀布置,定位座释放后,定位座抵在左心室的内壁上。 [0016] Preferably, the support frame near the rear end of the apex also provided with a positioning seat positioning seat made of a shape memory alloy woven, along the circumferential positioning seat support frame to a uniform arrangement, positioning seat is released, the seat positioned against the left ventricle on the inner wall.

[0017]进一步的优选,定位座由多个球体组成,多个球体沿支撑架的周向均匀布置。 [0017] Further preferably, a plurality of positioning seats spheres, the support frame along a plurality of spheres arranged in a circumferential uniformity.

[0018]进一步的优选,定位座有多根定位撑组成,定位撑的一端与支撑架靠近心尖的一端连接,定位撑的另一端设有外翻后向内卷起的定位卷边,定位卷边的平滑段抵在左心室的内壁,多根定位撑沿支撑架的周向均匀布置。 [0018] positioned a further preferred root plurality positioning seat stays composition, positioned near the hold one end of the support frame is connected to the apex end, the other end of the positioning support is provided with positioning inwardly rolled bead after eversion, Anchor Volume smooth side sections against the inner wall of the left ventricle, the support frame along a plurality of positioning struts are arranged uniformly in the circumferential direction.

[0019]优选的,支撑架靠近心尖的一端设有穿过心尖的心尖定位器,心尖定位器伸出左心室的一端设有下盘面,下盘面与左心室的外壁相贴合,连接套位于下盘面上,心尖定位器、下盘面由形状记忆合金编织而成。 [0019] Preferably, the support frame is provided near one end passing through the apex of the apex locator apex, the apex of the left ventricle end projecting retainer is provided under the disk, the disk and the outer wall of the left ventricle are bonded together, connecting sleeve located a lower disk, the apex locator, the disk woven from a shape memory alloy.

[0020] 进一步的优选,下盘面中夹有高分子膜。 [0020] Further preferably, the polymer film is interposed in the disk.

[0021]进一步的优选,心尖定位器位于左心室内的一端设有上盘面,上盘面与左心室的内壁贴合,上盘面由形状记忆合金编织而成。 [0021] Further preferably, the apex is positioned at one end the disk is provided inside the left ventricle, the left ventricle and the inner wall of the bonded disk, the disk woven from a shape memory alloy.

[0022]进一步的优选,支撑架靠近心尖的一端与心尖定位器之间通过调节腰部连接,调节腰部由形状记忆合金编织而成,调节腰部设有至少一个褶皱,调节腰部拉伸时,褶皱被拉开。 When [0022] Further preferably, between one end of the support frame near the apex of apical knitting retainer is connected by regulating the waist, adjustable lumbar from a shape memory alloy, with at least one adjustable lumbar pleat, adjustable lumbar stretched, wrinkles are opened.

[0023]如上所述,本发明左心室减容装置,具有以下有益效果: [0023] As described above, the left ventricular volume reduction device of the present invention, has the following advantages:

[0024]该左心室减容装置,可隔离左心室没有功能的心室区域,减少收缩和舒张容积,降低左心室张力,改善左心室重构和心衰患者的心功能;采用介入途径,并开创微创经心尖的设计,将创伤降低到最小;经心尖途径或介入途径中减小输送鞘管直径的设计,避免损伤血管和心脏瓣膜等的风险;装置采用定位座、心尖定位器等结构的设计,定位好且贴合张力强,因此在释放时无需借助球囊扩张定型;手术复杂度大大减小,手术时间减短,很大程度上降低了手术危险性,增加了手术成功率。 [0024] The left ventricular volume reduction device, may be isolated left ventricular function without ventricular region, to reduce shrinkage and diastolic volume and reduce the tension of the left ventricle, left ventricular remodeling and improved cardiac function in heart failure patients; interventional route and create a minimally invasive apex designed to minimize the wound; reduced transapical intervention pathway or delivery sheath diameter design, to avoid the risk of damage to blood vessels and heart valves and the like; positioning seat means employed, the apex locator structure design, positioning and good fit Zhang Liqiang, so when stereotypes do not need to release the aid of balloon dilation; greatly reduce the complexity of the surgery, the operation time is shorter, greatly reduces the risk of surgery, increases the success rate of surgery.

附图说明 BRIEF DESCRIPTION

[0025] 图1显示为本发明左心室减容装置植入左心室的过程示意图。 [0025] Figure 1 shows the left ventricular volume reduction of the left ventricle during implantation apparatus of the present invention, a schematic diagram.

[0026] 图2显示为图1所示的左心室减容装置的第一种实施方式的结构示意图。 [0026] FIG. 2 is shown in FIG. 1 shown in the left ventricle Save schematic structural diagram of a first embodiment of the receiving apparatus.

[0027]图3显示为图2所示的左心室减容装置的正视图。 [0027] FIG. 3 shows a front view of the left ventricular volume reduction apparatus shown in FIG. 2 FIG.

[0028] 图4显不为图2所不的左心室减容装置位于左心室内的结构不意图。 [0028] FIG. 4 is not 2 not significant left ventricular volume reduction device of FIG structure located within the left ventricle is not intended.

[0029] 图5显示为图1所示的左心室减容装置的第二种实施方式的结构示意图。 [0029] FIG. 5 shows a schematic structural view of a second embodiment of the apparatus of the embodiment shown in FIG. 1 the left ventricular volume reduction.

[0030] 图6显不为图5所不的左心室减容装置位于左心室内的结构不意图。 [0030] FIG. 6 is not 5 substantially not left ventricular volume reduction device of FIG structure located within the left ventricle is not intended.

[0031] 图7显示为图1所示的左心室减容装置的第三种实施方式的结构示意图。 [0031] Figure 7 shows a schematic view of the structure of the third embodiment shown in FIG. 1 is a left ventricular volume reduction apparatus embodiment.

[0032]图8显示为图7所示的左心室减容装置位于左心室内的结构示意图。 [0032] Figure 8 shows the left ventricle shown in Fig 7 a schematic view of the structure of volume reduction means is located within the left ventricle.

[0033]图9显示为图1所示的左心室减容装置的第四种实施方式的结构示意图。 [0033] Figure 9 shows a schematic view of the structure of the fourth embodiment shown in FIG. 1 is a left ventricular volume reduction apparatus embodiment.

[0034] 图10显不为图9所不的左心室减容装置位于左心室内的结构不意图。 [0034] FIG. 10 is not without significant left ventricular volume reduction apparatus of FIG. 9 is located within the structure of the left ventricle is not intended.

[0035]图11显示为图1所示的左心室减容装置的第五种实施方式的结构示意图。 [0035] FIG. 11 shows the left ventricle shown in FIG. 1 is a schematic structural diagram of a fifth embodiment of Save embodiment of the receiving apparatus.

[0036]图12显示为图1所示的左心室减容装置的第六种实施方式的结构示意图。 [0036] FIG. 12 shows a schematic structural diagram of the sixth embodiment shown in FIG. 1 the left ventricle volume reduction device.

[0037]图13显示为图1所示的左心室减容装置的第七种实施方式位于左心室内的结构示意图。 [0037] FIG. 13 shows a schematic view of the structure of the seventh embodiment of the left ventricle of the left ventricular volume reduction device shown in FIG. 1 is located.

[0038]图14显示为图1所示的左心室减容装置的第八种实施方式位于左心室内的结构示意图。 [0038] Figure 14 shows an eighth embodiment of the device shown in FIG. 1 the left ventricular volume reduction schematic structure located within the left ventricle.

[0039] 图15显示为图1所示的左心室减容装置的第九种实施方式的结构示意图。 [0039] Figure 15 shows the left ventricle shown in FIG. 1 is a schematic structural diagram of a ninth embodiment Save embodiment of the receiving apparatus.

[0040] 图16显示为图1所示的左心室减容装置的第十种实施方式位于左心室内的结构示意图。 [0040] FIG. 16 is shown in FIG. 1 shown in the left ventricle Save tenth embodiment schematic view of embodiment apparatus receiving structure is located within the left ventricle.

[0041] 图17显示为图1所示的左心室减容装置的第十一种实施方式位于左心室内的结构示意图。 [0041] FIG. 17 shows the left ventricle is shown in FIG. 1 minus the eleventh embodiment schematic view of embodiment apparatus receiving structure is located within the left ventricle.

[0042] 元件标号说明 [0042] DESCRIPTION OF REFERENCE NUMERALS element

[0043] 1 支撑架 [0043] The support frame 1

[0044] 11 支撑端 [0044] 11 support ends

[0045] 12 支撑骨 [0045] The support rib 12

[0046] 13 支撑卷边 [0046] The support bead 13

[0047] 14 凹口 [0047] 14 recess

[0048] 15 编织网 [0048] 15 braid

[0049] 16 支撑丝 [0049] 16 support filaments

[0050] 2 高分子膜 [0050] 2 polymer film

[0051] 3 左心室 [0051] 3 Left Ventricular

[0052] 31 心尖 [0052] The apex 31

[0053] 4 推送杆 [0053] The push rod 4

[0054] 5 连接套 [0054] The connecting sleeve 5

[0055] 6 定位座 [0055] 6 spud

[0056] 61 球体 [0056] The sphere 61

[0057] 62 定位撑 [0057] The support 62 is positioned

[0058] 63 定位卷边 [0058] 63 is positioned curling

[0059] 7 心尖定位器 [0059] 7 apex locator

[0060] 71 下盘面 [0060] 71 the disk

[0061] 72 上盘面_2] 8 调节腰部 [0061] 72 on the disk 2] 8 adjustable lumbar

[0063] 81 褶皱_4] 9 输送鞘管 [0063] 81 fold 4] delivery sheath 9

具体实施方式 Detailed ways

[0065]以下由特定的具体实施例说明本发明的实施方式,熟悉此技术的人士可由本说明书所揭露的内容轻易地了解本发明的其他优点及功效。 [0065] The following examples illustrate embodiments of the present invention consists of certain specific, those skilled in the art disclosed in this specification may be readily understand the content of other advantages and effects of the present invention.

[0066]请参阅图1至图17。 [0066] Please refer to FIGS. 1 to 17. 须知,本说明书所附图式所绘示的结构、比例、大小等,均仅用以配合说明书所揭示的内容,以供熟悉此技术的人士了解与阅读,并非用以限定本发明可实施的限定条件,故不具技术上的实质意义,任何结构的修饰、比例关系的改变或大小的调整,在不影响本发明所能产生的功效及所能达成的目的下,均应仍落在本发明所掲示的技术内容得能涵盖的范围内。 Information, the accompanying drawings of the present specification, the structure illustrated, the ratio, size, etc., are only used to fit the contents disclosed in the specification, for those skilled in the art reading and understanding, not intended to limit the present invention may be implemented defined conditions, it has not technically meaningful, modified, altered, or the ratio between the size of the adjustment of any structure, in the object without affecting the efficacy of the present invention can be produced and can be achieved, according to the present invention shall still fall within the scope of the contents shown kei obtained can be covered. 同时,本说明书中所引用的如“上”、“下”、“左”、“右”、“中间”及“一”等的用语,亦仅为便于叙述的明了,而非用以限定本发明可实施的范围,其相对关系的改变或调整,在无实质变更技术内容下,当亦视为本发明可实施的范畴。 Meanwhile, cited in this specification as "upper", "lower", "left", "right", "intermediate" and "an" terms are also clear convenience of description only and not intended to limit the scope of the present invention may be implemented to change or adjust their relative relationships, no substantial changes in the technical content, the category may be considered also when the embodiment of the present invention.

[0067]如图1至图17所示,本发明提供一种左心室减容装置,它包括由形状记忆合金制作而成的支撑架1,支撑架1上覆盖有高分子膜2;支撑架1从左心室3的心尖31释放至左心室3 内时,支撑架1的释放后的形状与左心室3的内壁相适应,支撑架1远离心尖31的一端设有向外伸出的支撑端11,支撑端11卡在左心室3的内壁上,支撑架1靠近心尖31的一端设有与推送杆4可拆卸连接的连接套5。 [0067] As shown in FIG. 1 to FIG. 17, the present invention provides a left ventricular volume reduction means comprising a shape memory alloy made of the support frame 1 formed by the support frame 2 is covered with the polymer film 1; bracket 1 is released from the apex of the left ventricle to the left ventricle 3 of 31 3, the shape of the inner wall of the left ventricle after the release of the support frame 1 is adapted to 3, one end of the support frame 1 remote from the apex end of the support 31 is provided with outwardly projecting 11, the card support end 11 on the inner wall of the left ventricle 3, one end of the support frame 1 near the apex 31 is provided with a push rod 4 connecting sleeve 5 is removably attached. 其中,高分子膜4可以由聚对苯二甲酸乙二醇酯PET或膨体聚四氟乙烯ePTFT等材料构成,支撑架1由镍钛合金制作而成;由于镍钛合金具有超弹性和形状记忆功能,整个减容装置可以在左心室3内适应性变形。 Wherein the polymer film 4 may be made of polyester terephthalate PET or PTFE ePTFT like material, made of nitinol support frame 1 formed; as nitinol superelastic and shape memory, the entire volume reduction device can be adaptively modified within the left ventricle 3.

[0068] 如图1所示,左心室减容装置与推送杆4连接,初始状态下,推送杆4、左心室减容装置均位于输送鞘管9内;然后,推送杆4推送左心室减容装置至左心室3内,支撑架1连同高分子膜2释放为与左心室3的内壁相适应的形状,支撑端11卡在左心室3的内壁上,起到固定左心室减容装置的作用。 [0068] As shown in FIG. 1, the left ventricular volume reduction means is connected with a push rod 4, in the initial state, a push rod 4, left ventricular volume reduction means 9 are positioned within the delivery sheath; then, push rod 4 push the left ventricle Save receiving means 3 into the left ventricle, together with a supporting frame 2 is released as the polymer film and the inner wall of the left ventricle 3 of a shape adapted to support the card end 11 on the inner wall 3 of the left ventricle, the left ventricular volume reduction functions fixing means effect.

[0069] 如图2至图11所示,支撑架1由多根支撑骨12组成,多根支撑骨12靠近心尖31的一端合并至一起,并与连接套5连接,支撑骨12远离心尖31伸出至高分子膜2覆盖区域外部的一端形成支撑端11,卡在左心室3的内壁上。 [0069] As shown in FIG. 2 to FIG. 11, a support frame 12 by a plurality of supporting bone composition, a plurality of near one end of the support rib apex 12 to 31 were combined together and connected to the connecting sleeve 5, away from the apex 31 of the support rib 12 2 extends to the polymer film covering the outer end of the end region 11 forming the support, the card on the inner wall of the left ventricle 3. 支撑骨12伸出至高分子膜2覆盖区域外部的长度优选为1〜3mm。 Support rib 12 extends to a length of polymer film 2 is preferably outside the coverage area of ​​1~3mm.

[0070] 如图11、图13、图14所示,支撑骨12的支撑端11为外翻后再向内卷曲的支撑卷边13,支撑卷边13的平滑段与左心室3的内壁相抵接。 [0070] 11, 13, as shown in FIG. 14 of the support rib 12 supporting the end 11 is then everted inward curled bead support 13, smooth inner wall of the left ventricle and the supporting bead segment 13 against 3 access. 该支撑卷边13起到支撑左心室的作用, 同时不至于将尖端扎入左心室3的内壁而造成损伤,还可以使左心室减容装置植入后,可以被术者调节或自动调节至最佳位置。 The support bead 13 functions as a support of the left ventricle, while the tip will not pierce the inner wall of the left ventricle 3 of the damage, it is also possible after the device is implanted left ventricular volume reduction, the surgeon may be adjusted or automatically adjusted to Best location. 一一、 Eleven,

[0071] 如图2至图4所示,多个支撑骨12靠近心尖31的一端形成一个向远离心尖31的方向凹陷的凹口14,连接套5位于该凹口14内。 [0071] As shown in FIG. 2 to FIG. 4, the support rib 12 is formed a plurality of recesses 31 in the direction away from the apex of the recess 31 near one end of the apex 14, coupling sleeve 5 is located within the recess 14.

[0072] 如图12至图14所示,支撑架1还包括编织网15,编织网15覆盖在多根叉擇H 12组成的支撑面上,高分子膜2覆盖在编织网15上。 [0072] As shown in FIG. 12 to FIG. 14, a support frame 15 further comprises a woven mesh, braided mesh 15 covers the plurality of prongs Optional H 12 composed of the support surface, the polymer film 2 covering the braid 15. 编织网I5的作用是保持支撑骨12之间的高分子膜2的表面形态的平整,减少血栓产生,同时增强阻血性能及整个装置的弹性性能。 I5 effect braid 2 is a flat surface morphology is maintained between the support rib 12 a polymer film, reduce thrombosis generation, while enhancing blood-barrier properties and elastic properties of the entire apparatus.

[0073] 如图15所示,支撑架1可以单独由编织网15组成,支撑架1的支撑端11为从编织网15远离心尖31的一端向外伸出的多根支撑丝16。 [0073] As shown in FIG 15, the support frame 15 may be composed solely of a woven mesh, the support bracket 11 is a terminal supporting a plurality of filaments extending from one end of the braided mesh 15 outwardly away from the apex 31 of 16. 此时,高分子膜2可覆盖在编织网15的内部或外部上。 At this time, the polymer film 2 may be covered on an internal or external woven mesh 15. 单独使用编织网15作为支撑架1,可减小减容装置收入输送鞘管9内时的直径,因此可以采用直径更小的输送鞘管9,减小介入途径中输送鞘管9对血管和心脏瓣膜、腱索等结构的损伤。 Used alone or as a woven mesh support frame 15 1, volume reduction can be reduced diameter from the transportation means 9 the sheath, it is possible to use a smaller diameter delivery sheath 9, reducing the pathways involved in vascular delivery sheath 9 and structural damage heart valves, tendons and so on. ^ ^

[0074] 如图16至图17所示,支撑架1还可由双层或多层编织网15组成,高分子膜2夹在相邻两层编织网15之间,也可覆盖在编织网15的内部或外部上。 [0074] As shown in FIG. 16 to FIG. 17, the support frame 1 may also consist of two or more layers consisting of a woven mesh 15, the polymer film 2 is sandwiched between two adjacent layers braided mesh 15, may also cover the braided mesh 15 on the inside or outside.

[0075] 如图5至图8、图13所示,支撑架1靠近心尖31的一端还设有定位座6,定位座6由形状记忆合金编织而成,定位座6沿支撑架1的周向均匀布置,定位座6释放后,定位座6抵在左心室3的内壁上。 [0075] As shown in FIG. 5 to FIG. 8, FIG. 13, one end of the support frame 1 near the apex 31 is further provided with positioning seats 6, 6 woven spud made of a shape memory alloy, circumferentially positioning seat 6 of the support frame 1 uniformly arranged, after the release of the positioning base 6, the positioning unit 6 abuts on the inner wall of the left ventricle 3. 定位座6起到使减容装置在左心室3中的位置相对固定的作用。 Spud volume reduction means 6 serve to position 3 in the left ventricle of the relatively fixed effect.

[0076] 如图5至图8所示,定位座6由多个球体61组成,多个球体61沿支撑架1的周向均匀布置。 [0076] As shown in FIG. 5 to FIG. 8, a plurality of spheres 6 positioned seat 61 composed of a plurality of spheres 61 along the circumference of the support frame 1 is uniformly arranged.

[0077] 如图13所示,定位座6有多根定位撑62组成,定位撑62的一端与支撑架1靠近心尖31的一端连接,定位撑62的另一端设有外翻后向内卷起的定位卷边63,定位卷边63的平滑段抵在左心室3的内壁,多根定位撑62沿支撑架1的周向均匀布置。 After [0077] As shown, a plurality positioning seat stays 6 1362 positioned composition, positioning an end of the support frame 62 supporting an end adjacent the apex 31 is connected to the other end of the positioning support 62 is provided with inwardly volume valgus positioning bead 63 from the positioning section 63 is smooth bead against the inner wall of the left ventricle 3, a plurality of struts 62 positioned in the support frame 1 to a uniform circumferential arrangement.

[0078] 如图7至图11、图14、图I6至图17所示,支撑架1靠近心尖31的一端设有穿过心尖31 的心尖定位器7,心尖定位器7伸出左心室3的一端设有下盘面71,下盘面71与左心室3的外壁相贴合,连接套5位于下盘面71上,心尖定位器7、下盘面71由形状记忆合金编织而成。 [0078] FIG 7 to FIG 11, FIG 14, FIG I6 to 17, one end of the support frame 1 is provided near the apex 31 is positioned through the apex 7 of the apex 31, the apex of the left ventricle 3 projecting retainer 7 71 is provided at an end of the disk, the disk 71 and the outer wall of the left ventricle 3 are bonded together, the connecting sleeve 5 is positioned on the disk 71, the apex locator 7, the disk 71 made of a shape memory alloy woven. 如图16至图17所示,下盘面71中可夹有高分子膜2。 As shown in FIG. 16 to FIG. 17, the disk 71 may be a polymer film 2 sandwiched.

[0079] 如图9至图11、图14所示,心尖定位器7位于左心室3内的一端设有上盘面72,上盘面72与左心室3的内壁贴合,上盘面72由形状记忆合金编织而成。 [0079] As shown in FIG. 9 to FIG. 11, FIG. 14, the apex 7 is positioned at one end within the left ventricle 3 is provided on the disk 72, the disk 72 and the inner wall of the left ventricle bonded 3, the disk 72 of a shape memory alloy woven. 心尖定位器7、下盘面71和上盘面72用于固定支撑架1与心尖31之间的相对位置。 Apex locator 7, the disk 71 and the disk 72 for fixing the relative position between the support frame 1 and the apex 31.

[0080] 如图16至图17所示,支撑架1靠近心尖31的一端与心尖定位器7之间通过调节腰部8连接,调节腰部8由形状记忆合金编织而成,调节腰部8设有至少一个褶皱81,调节腰部8拉伸时,褶皱81被拉开。 [0080] As shown in FIG. 16 to FIG. 17, the support frame 1 is connected near the apex of the apical end 31 is positioned between the waist by adjusting 8 7, 8 adjustable lumbar woven from a shape memory alloy, at least provided with adjustable lumbar 8 a pleat 81, when adjusting the lumbar stretched 8, pleats 81 are pulled apart. 在心尖定位器7受牵拉时,调节腰部8的褶皱81伸展或皱起,可调节心尖定位器7与支撑架1之间的距离,可适合不同患者的解剖结构。 When pulled by the apex locator 7, 8 of the waist adjusting pleats 81 wrinkling or stretching, the adjustable positioning of the distance between the apex 17 and the support frame may be adapted to the anatomy of different patients.

[0081] 该左心室减容装置的第一种实施方式如图2至图4所示,其中,支撑架1为支撑骨12,且多个支撑骨I2靠近心尖的一端形成一个向远离心尖31的方向凹陷的凹口14,连接套5位于该凹口14内。 [0081] The first embodiment of the left ventricular volume reduction means 2 to 4, wherein the support frame 1 to support the bone 12, and a plurality of supporting bone I2 near one end remote from the apex to the apex 31 form a a recess recessed in the direction 14, coupling sleeve 5 is located within the recess 14.

[0082] 该左心室减容装置的第二种实施方式如图5至图6所示,其中,支撑架丨为支撑骨12,且设有由多个球体61组成的定位座6。 [0082] A second embodiment mode of the left ventricular volume reduction apparatus shown in FIG. 5 to FIG. 6, wherein the support rib 12 of the support frame Shu, and a positioning seat 61 by a plurality of spheres 6 composed.

[0083] 该左心室减容装置的第三种实施方式如图7至图S所示,其中,支撑架丨为支撑骨12,且设有由多个球体61组成的定位座6和带有下盘面71的心尖定位器7。 [0083] A third embodiment of the left ventricular volume reduction apparatus shown in FIG. 7 to S, wherein the support rib 12 of the support frame Shu, and is provided with a plurality of spherical positioning seat 61 and with the composition 6 positioning disk 71 at the apex 7.

[0084] 该左心室减容装置的第四种实施方式如图9至图10所示,其中,支撑架丨为支撑骨12,且设有带有下盘面71、上盘面72的心尖定位器7。 [0084] The fourth embodiment of the left ventricular volume reduction apparatus shown in FIGS. 9 to 10, wherein the support rib 12 of the support frame Shu, and is provided with the disk 71, the disk 72 of the apex locator 7.

[0085]该左心室减谷装置的弟五种头施方式如图11所不,其中,支撑架1为支撑骨12,支撑骨12的支撑端11为支撑卷边13,且设有带有下盘面71、上盘面72的心尖定位器7。 [0085] The reduction of left ventricular brother threshing apparatus is applied to five kinds of the first embodiment in FIG. 11 does not, wherein the support frame 1 to support the bone 12, the support end 12 of the support rib 11 to support a bead 13, and is provided with the disk 71, the disk 72 is positioned apex 7.

[0086]该左心室减容装置的第六种实施方式如图所示,其中,支撑架1由支撑骨12与编织网15组成。 [0086] The sixth embodiment of the left ventricular volume reduction device shown in FIG, wherein the support frame 1 by a support rib 12 and the braided mesh 15 composed.

[0087]该左心室减容装置的第七种实施方式如图13所示,其中,支撑架〗由支撑骨12与编织网15组成,支撑端11为支撑卷边13,还设有由多根定位撑62组成的定位座6。 [0087] The left ventricular volume reduction device according to the seventh embodiment shown in Figure 13, which is supported by a bracket〗 bone braided mesh 12 and composition 15, 11 to support the supporting side bead 13 is also provided with a plurality of positioning the root 62 stays 6 consisting spud.

[0088]该左心室减容装置的第八种实施方式如图14所示,其中,支撑架〖由支撑骨12与编织网15组成,支撑端11为支撑卷边13,还设有带有下盘面71、上盘面72的心尖定位器7。 [0088] The eighth embodiment of the left ventricular volume reduction device 14, which is supported by a bracket〗 bone braided mesh 12 and composition 15, 11 to support the supporting side bead 13 is also provided with the disk 71, the disk 72 is positioned apex 7.

[0089]该左心室减容装置的第九种实施方式如图15所示,其中,支撑架1由编织网15组成,支撑端11为支撑丝16。 [0089] The ninth embodiment of the left ventricular volume reduction apparatus shown in FIG. 15, wherein the support frame 1 consisting of a woven mesh 15, support end 11 of the support wire 16.

[0090]该左心室减容装置的第十种实施方式如图16所示,其中,支撑架1由双层或多层编织网15组成,且设有带有下盘面71的心尖定位器7,心尖定位器7与支撑架1之间还设有调节腰部8,调节腰部8设有一个褶皱81。 [0090] The tenth embodiment of the left ventricular volume reduction device shown in Figure 16, wherein the support frame 1 by the two or more layers consisting of a woven mesh 15, and is provided with the apex locator 71 of the disk 7 apex locator is also provided with adjustable lumbar support frame 8 between 1 and 7, 8 is provided with a pleated adjustable lumbar 81.

[0091]该左心室减容装置的第十一种实施方式如图17所示,其中,支撑架丨由双层或多层编织网15组成,且设有带有下盘面71的心尖定位器7,心尖定位器7与支撑架1之间还设有调节腰部8,调节腰部8设有两个褶皱81。 [0091] The eleventh embodiment mode of the left ventricular volume reduction device 17, wherein the support frame Shu of two or more layers consisting of a woven mesh 15, and is provided with the apex locator 71 of the disk 7, the apex locator also has adjustable lumbar support frame 8 between 1 and 7, adjustable lumbar 8 is provided with two folds 81.

[0092]综上所述,本发明左心室减容装置,可隔离左心室没有功能的心室区域,减少收缩和舒张容积,降低左心室张力,改善左心室重构和心衰患者的心功能;采用介入途径,并开创微创经心尖的设计,将创伤降低到最小;经心尖途径或介入途径中减小输送鞘管直径的设计,避免损伤血管和心脏瓣膜等的风险;装置采用定位座、心尖定位器等结构的设计,定位好且贴合张力强,因此在释放时无需借助球囊扩张定型;手术复杂度大大减小,手术时间减短,很大程度上降低了手术危险性,增加了手术成功率。 [0092] In summary, the left ventricular volume reduction device of the present invention, there is no left ventricular function may be isolated ventricular region, to reduce shrinkage and diastolic volume and reduce the tension of the left ventricle, left ventricular remodeling and improved cardiac function in heart failure patients; interventional route and create a minimally invasive transapical designed to minimize the wound; transapical intervention pathway or reduce the diameter of the delivery sheath design, to avoid the risk of damage to blood vessels and heart valves and the like; positioning seat means employed, design apex locator structure, positioning and good bonding Zhang Liqiang, thus setting upon release of the balloon without the aid; surgical complexity is greatly reduced, the operation time is shorter, greatly reduces the risk of surgery, increased the success rate of surgery. 所以,本发明有效克服了现有技术中的种种缺点而具高度产业利用价值。 Therefore, the present invention effectively overcomes the drawbacks of the prior art and with a high degree of value industry.

[0093]上述实施例仅例不性说明本发明的原理及其功效,而非用于限制本发明。 [0093] The above-described exemplary embodiments are only illustrative of the principles and not the efficacy of the present invention, the present invention is not intended to be limiting. 任何熟悉此技术的人士皆可在不违背本发明的精神及范畴下,对上述实施例进行修饰或改变。 Any person skilled in this art can be made at without departing from the spirit and scope of the present invention, the above-described embodiments can be modified or changed. 因此,举凡所属技术领域中具有通常知识者在未脱离本发明所揭示的精神与技术思想下所完成的一切等效修饰或改变,仍应由本发明的权利要求所涵盖。 Thus, one skilled in the art that whenever all having ordinary knowledge in the technical ideas and spirit of the present invention is disclosed without departing from the completed equivalent modified or altered, yet the claims shall be encompassed by the present invention. ~ ~

Claims (11)

1. 一种左心室减容装置,其特征在于:它包括由形状记忆合金制作而成的支撑架(1), 所述支撑架(1)上覆盖有高分子膜(2);所述支撑架⑴从左心室⑶的心尖(31)释放至左心室⑶内时,所述支撑架⑴释放后的形状与左心室⑶的内壁相适应,所述支撑架⑴远离心尖(31)的一端设有向外伸出的支撑端(11),所述支撑端(11)卡在左心室⑶的内壁上,所述支撑架(1)靠近心尖(31)的一端设有与推送杆(4)可拆卸连接的连接套(5);所述支撑架(1)靠近心尖(31)的一端设有穿过心尖(3D的心尖定位器(7),所述心尖定位器(7)伸出左心室(3)的一端设有下盘面(71),所述下盘面(71)与所述左心室(3)的外壁相贴合,所述连接套(5)位于所述下盘面(71)上,所述心尖定位器(7)、下盘面(71)由形状记忆合金编织而成。 A left ventricular volume reduction means, characterized in that: it comprises a support frame (1) made of a shape memory alloy is formed, the polymer film is covered with the support frame (2) (1); said support when released from the carrier ⑴ ⑶ apex of the left ventricle (31) to the left ventricle ⑶, the shape of the inner wall of the support frame and the left ventricle after ⑴ ⑶ adapted to release, away from the apex end of the support frame ⑴ (31) provided a supporting end (11) projecting outwardly of the support end (11) on the inner wall of the left ventricle ⑶ card, and one end of the support frame (1) near the apex (31) is provided with a push rod (4) detachable connection of the connection sleeve (5); one end of the support frame (1) near the apex (31) is provided through the apex (3D apex locator (7), said apex locator (7) projecting left One end of the ventricle (3) is provided under the disk (71), said lower disk (71) and the left ventricle (3) is bonded to the exterior wall, said connecting sleeve (5) is located in the lower disk (71) on the apex locator (7), the disk (71) woven from a shape memory alloy.
2. 根据权利要求1所述的左心室减容装置,其特征在于:所述支撑架(1)由多根支撑骨(12)组成,所述多根支撑骨(12)靠近心尖C31)的一端合并至一起,并与所述连接套(5)连接,所述支撑骨(12)远离心尖(31)伸出至所述高分子膜(2)覆盖区域外部的一端形成支撑端(11)。 The left ventricle of the volume reduction device according to claim 1, wherein: the support frame (1) by a plurality of support rib (12) composed of a plurality of the support rib (12) near the apex C31) of combined together to one end, and connected to the connecting sleeve (5), said support rib (12) remote from the apex (31) extending to said polymer film (2) is formed to cover an end region outside the support end (11) .
3. 根据权利要求2所述的左心室减容装置,其特征在于:所述支撑骨(12)的支撑端(11) 为外翻后再向内卷曲的支撑卷边(13),所述支撑卷边(13)的平滑段与左心室(3)的内壁相抵接。 The left ventricular volume reduction device according to claim 2, wherein: said support rib (12) of the support end (11) and then inwardly crimped valgus supporting bead (13), said the inner wall of the supporting bead (13) and smooth sections of the left ventricle (3) abuts.
4. 根据权利要求2所述的左心室减容装置,其特征在于:所述支撑架(1)还包括编织网(15),所述编织网(15)覆盖在所述多根支撑骨(12)组成的支撑面上,所述高分子膜(2)覆盖在所述编织网(I5)上。 4. The left ventricular volume reduction device according to claim 2, characterized in that: the support frame (1) further comprises a woven mesh (15), said woven mesh (15) overlying the plurality of supporting bone ( 12) consisting of the support surface, the polymer film (2) coated on the woven mesh (I5).
5. 根据权利要求1所述的左心室减容装置,其特征在于:所述支撑架(1)由多层编织网(15)组成,所述高分子膜⑵夹在相邻两层编织网(15)之间。 The left ventricular volume reduction device according to claim 1, wherein: the support frame (1) consists of layers of woven mesh (15) composed of a polymer film is sandwiched between two adjacent layers ⑵ woven mesh (15).
6. 根据权利要求1所述的左心室减容装置,其特征在于:所述支撑架(1)靠近心尖(31) 的一端还设有定位座(6),所述定位座⑹由形状记忆合金编织而成,所述定位座⑹沿所述支撑架⑴的周向均匀布置,所述定位座⑹释放后,所述定位座⑹抵在左心室⑶的内壁上。 The left ventricular volume reduction device according to claim 1, wherein: one end of the support frame (1) near the apex (31) is further provided with aligning means (6), the spud of a shape memory ⑹ woven alloy, said spud ⑴ ⑹ along the support frame is disposed circumferentially uniform, the spud ⑹ upon release, said spud ⑹ abuts on the inner wall of the left ventricle ⑶.
7. 根据权利要求6所述的左心室减容装置,其特征在于:所述定位座(6)由多个球体(61) 组成,所述多个球体(61)沿所述支撑架⑴的周向均匀布置。 The left ventricle of the volume reduction device according to claim 6, characterized in that: said aligning means (6) by a plurality of balls (61) consisting of a plurality of spheres (61) along the support frame of ⑴ arranged in a circumferential uniformity.
8. 根据权利要求6所述的左心室减容装置,其特征在于:所述定位座(6)有多根定位撑(62) 组成,所述定位撑(62)的一端与所述支撑架(1)靠近心尖(31)的一端连接,所述定位撑(62)的另一端设有外翻后向内卷起的定位卷边(63),所述定位卷边(6¾的平滑段抵在左心室(3)的内壁,所述多根定位撑(62)沿所述支撑架⑴的周向均匀布置。 8. The left ventricular volume reduction device according to claim 6, wherein: an end of said spud (6) positioning a plurality root support (62), with said positioning strut (62) and the support frame the other end (1) near the apex (31) connected to one end, the positioning support (62) is provided with an inwardly rolled after valgus positioning bead (63), positioning said bead section abutting smoothing (6¾ of the inner wall of the left ventricle (3), said plurality of positioning support (62) along the support frame ⑴ arranged uniformly in the circumferential direction.
9. 根据权利要求1所述的左心室减容装置,其特征在于:所述下盘面(71)中夹有高分子膜⑵。 According to claim 1, wherein the left ventricular volume reduction apparatus, wherein: said lower disk (71) in a polymer film interposed ⑵.
10. 根据权利要求1所述的左心室减容装置,其特征在于:所述心尖定位器(7)位于左心室(3)内的一端设有上盘面(72),所述上盘面(72)与所述左心室(3)的内壁贴合,所述上盘面(72)由形状记忆合金编织而成。 10. Left ventricular volume reduction device according to claim 1, wherein: said apex of said retainer (7) is located within the left ventricle end (3) provided with the disk (72) disk (72 ) with an inner wall of the left ventricle (3) is bonded to the upper disk (72) made of a shape memory alloy woven.
11. 根据权利要求1所述的左心室减容装置,其特征在于:所述支撑架(1)靠近心尖(31) 的一端与心尖定位器⑺之间通过调节腰部⑻连接,所述调节腰部(8)由形状记忆合金编织而成,所述调节腰部⑻设有至少一个褶皱(81),所述调节腰部⑻拉伸时,所述褶皱(幻) 被拉开。 11. Left ventricular volume reduction device according to claim 1, wherein: the support frame is connected by adjustable lumbar ⑻ between one end and the apex locator ⑺ (1) near the apex (31), said waist adjustment (8) made of a shape memory alloy woven, the adjustable lumbar ⑻ provided with at least one pleat (81), when the adjustment ⑻ stretching waist, the pleats (phantom) to be pulled apart.
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