CN104323813B - Cardiac septal defect occluder - Google Patents

Cardiac septal defect occluder Download PDF

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Publication number
CN104323813B
CN104323813B CN201410605359.1A CN201410605359A CN104323813B CN 104323813 B CN104323813 B CN 104323813B CN 201410605359 A CN201410605359 A CN 201410605359A CN 104323813 B CN104323813 B CN 104323813B
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body
provided
catheter
support
positioning
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CN201410605359.1A
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CN104323813A (en
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刘云奇
张希
彭芸
杨习锋
曾晨光
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广州新诚生物科技有限公司
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Abstract

本发明公开了一种心脏间隔缺损封堵器,它包括支撑架、上定位体、下定位体、上导液管、下导液管、堵头、鞘壳、螺杆、两条送液管、两根穿刺针和轴套,支撑架的中间设置有底端呈开口设置的容槽;上定位体和下定位体间隔设置在支撑架的外壁;上导液管和下导液管安装在容槽内,且分别与上定位体和下定位体相连通;堵头卡设在容槽的开口处,堵头上设置有分别卡入上导液管和下导液管的两个通液管;鞘壳的中间设置有滑孔;螺杆滑设在滑孔内,螺杆的中间设置有安装两条送液管的安装孔内;两根穿刺针分别安装在两个安装孔的端部,且分别与两条送液管连通;轴套转动安装在鞘壳上,轴套的内壁设置有与螺杆的外螺纹啮合的内螺纹。 The present invention discloses a cardiac septal defect occluder comprising a support frame, on the positioning member, the positioning member, the catheter, the catheter, plug, a sheath screw, two fluid delivery line, two puncture needle and the sleeve, the bottom end of the intermediate support frame is provided with an opening provided as a receiving groove; positioned on the positioning member and the lower outer wall of the support frame intervals; the catheter and the catheter mounted on container slot, and respectively with the upper and the lower positioning member is positioned in communication; card plug is provided at the opening of the receptacle, the plug head is provided with two on each card through the catheter and the catheter of the catheter ; intermediate housing is provided with a sheath sliding hole; screw slidably disposed in the slide hole, the middle two mounting screw is provided with a liquid feeding pipe mounting hole; puncture needle are attached at two ends of the two mounting holes, and communicates with two liquid feed tubes, respectively; hub rotatably mounted on a sheath, the inner wall of the sleeve is provided with an internal thread engaged with the external screw thread.

Description

心脏间隔缺损封堵器 Cardiac septal defect occluder

技术领域 FIELD

[0001] 本发明涉及一种医用心脏封堵器,具体来说,涉及一种适用于微创封堵手术,且手术操作方便快捷,使用更加安全的心脏间隔缺损封堵器,可用于修补卵圆孔未闭(PFO)、房间隔缺损(ASD)、室间隔缺损(VSD)和动脉导管未闭(PDA)等。 [0001] The present invention relates to an intracardiac occluder, particularly, to a closure suitable for minimally invasive surgery, and convenient surgical procedure, the use of safer cardiac septal defect occluder, may be used to repair egg circular ovale (PFO), atrial septal defect (ASD), ventricular septal defect (VSD) and patent ductus arteriosus (PDA) and the like.

背景技术 Background technique

[0002] 我国先天性心脏病患病率为6.87%。 [0002] The prevalence of congenital heart disease was 6.87%. 〜14.39%。 ~14.39%. ,其中,室间隔缺损居首位,占先心病发病率的30.4%〜59.68%,房间隔缺损占18 %〜39.8%,动脉导管未闭占5%〜14.9%。 Wherein, ventricular septal defect in the first place, the incidence of heart preemptive ~59.68% 30.4%, atrial septal defect ~39.8%, 18%, patent ductus arteriosus 5% ~14.9%. 在这些先天性心脏病患儿中,有相当一部分可以采取经胸微创封堵的方式治疗,从而避免体外循环的损伤、避免输血,减小手术切口,缩短住院时间,降低住院费用。 In these infants with congenital heart disease, you can take a considerable part of transthoracic minimally invasive manner plugging treatment, thus avoiding damage to cardiopulmonary bypass, avoid transfusions, reduced incision, shorter hospital stays, reduced hospital costs. 临床常用的心脏封堵器的主体部分为蝶形,一端(动脉导管封堵器)或两端(房间隔及室间隔封堵器)有一个双层金属网丝圆盘,其内有一层阻隔血流的薄膜,中间为圆柱形细腰,在圆盘金属网两端还焊接有接头。 Commonly used in clinical occluder body portion of the heart as a butterfly, one end (arterial occluder) or both ends (atrial septal and ventricular septal occluder) has a double-layer metal mesh disc has an inner layer of barrier blood film, an intermediate cylindrical waist, at both ends of the metal mesh disc has further weld joints. 其具体构件包括:镍钛记忆合金编织的网状支架、聚酯纤维膜、医用不锈钢套以及缝合线等。 The specific member comprising: a braided nitinol mesh stent, a polyester fiber membrane, medical stainless steel sleeve and the sutures. 心脏封堵器释放后,记忆合金支架迅速恢复预设的形状,夹堵在心脏的缺损部位,并由聚酯纤维膜来阻隔血流完成封堵。 Cardiac occluder release, rapid recovery of shape memory alloy stent predetermined shape, interposed block in the defect site of the heart by blocking blood flow to the polyester fiber membranes complete closure.

[0003]目前,几乎所有的心脏封堵器都由镍钛记忆合金制造,而该合金在体内可逐渐被腐蚀,并导致镍离子进入血液及心内膜细胞,损害人体健康,一些产品在镍钛合金表面镀上一层陶瓷以改善其生物相容性,但产品的工艺更加复杂,成本增加,且其有效性还有待长期临床观察验证,而且,这些金属结构将永久留存在患者体内,在患者今后进行其他影像学检查是可能会造成干扰,在一些特殊安检时亦有可能带来不必要麻烦;并有可能会对患者的心理造成不良的影响。 [0003] Currently, almost all of the occluder by cardiac Nitinol alloy, and the alloy may be gradually corrode in the body, and lead nickel ions into the blood and endocardial cells, damage to human health, some of the nickel product titanium ceramic surface coated with a layer to improve its biocompatibility, but the process is more complex products, increased cost, and its effectiveness has yet to be verified long-term clinical observation, and that these metal structures will be permanently retained in the patient, in for future patients with other imaging modalities is likely to cause interference, it is also likely to cause unnecessary trouble when some special security; and possibly mental patients will cause adverse effects. 另外,圆盘中间的聚酯纤维膜不能形成即刻封堵效果,并可能导致患者发生溶血及无菌性炎症反应,在封堵器植入体内后,缺损周围的心内膜组织或血管内皮会逐渐覆盖封堵器表面,一旦心内缺损被自身组织和内皮细胞完全覆盖,封堵器存在的价值就不大了,只要覆盖在缺损部位的新生组织的力学强度足够大,就无需封堵器在体内永久存留。 Further, the intermediate polyester fiber membrane disc sealing effect can not be formed immediately, and may cause hemolysis and patients aseptic inflammation, after implantation in vivo occluder, endocardial tissue surrounding the defect may or vascular endothelial gradually cover the surface of the occluder once the heart tissue itself is completely covered the defect and endothelial cells, the presence of the occluder is not much value, as long as the mechanical strength of the cover in the new tissue defect site is sufficiently large, there is no need occluder permanent retention in the body.

发明内容 SUMMARY

[0004] 针对以上的不足,本发明提供了一种适用于微创封堵手术,且手术操作方便快捷,使用更加安全的心脏间隔缺损封堵器,它包括封堵器,以及与所述封堵器可拆卸连接的输送鞘,其特征在于,所述封堵器包括支撑架、上定位体和下定位体,所述支撑架的中间设置有容槽,所述容槽的底端呈开口设置,所述上定位体和下定位体分别间隔设置在支撑架的外壁,支撑架与输送鞘之间为可拆卸连接,所述支撑架的容槽内设置有与上定位体相连通的上导液管,以及与下定位体相连通的下导液管,以分别向上定位体和下定位体内注入流体而迫使其向外膨胀或者向外张开。 [0004] To solve the above deficiencies, the present invention provides a closure suitable for minimally invasive surgery, surgical operation quick and easy to use safer cardiac septal defect occluder comprising occluder, and the sealing blocking the delivery sheath is detachably connected, wherein the occluder comprises a support frame, upper and lower positioning the positioning body, and the middle of the support frame is provided with a receiving groove, the receiving groove form a bottom end opening provided, the upper and the lower positioning member are positioned between the support frame spaced from the outer wall of the support frame is detachably connected with the delivery sheath, the support frame is provided with a receiving groove on the positioning member in communication with the catheter, and the catheter body in communication with the positioning of the positioning body and respectively upwardly positioned lower body into its expanded fluid is forced outwardly or flared outwardly.

[0005] 为了进一步实现本发明,所述上定位体包括数个具有一定的柔韧性的支撑软管,每一所述支撑软管的一端分别连接支撑架,其另一端分别水平向外伸出,所述上导液管分别与所有支撑软管相连通。 [0005] In order to further implement the present invention, the positioning member comprises a plurality of support tube having a certain flexibility, each end of the support tube are connected to the support frame, the other end thereof outwardly projecting horizontally the upper catheter are in communication with all the hose support.

[0006] 为了进一步实现本发明,所述上定位体还包括连接支撑架侧壁的薄膜体,所述薄膜体包覆住所有支撑软管,支撑软管可将薄膜体支撑开。 [0006] In order to further implement the present invention, the body further comprises a positioning member connected to the support frame sidewall film, the film support body covering all live hose, hose supporting body supporting the film opened.

[0007] 为了进一步实现本发明,所述上定位体为充流体可向外膨胀扩张的膨胀体。 [0007] In order to further implement the present invention, the positioning member is a fluid-filled expansion of the expandable member to expand outwardly.

[0008] 为了进一步实现本发明,所述下定位体包括数个具有一定的柔韧性的支撑软管,所述下定位体的每一所述支撑软管的一端分别连接支撑架,其另一端分别水平向外伸出,所述下导液管分别与下定位体的所有支撑软管相连通。 End [0008] To further implement the present invention, the positioning of the lower support body each comprise a plurality of hose with a certain flexibility, the lower positioning of the support tube are connected to the support frame, the other end respectively, extending horizontally outwardly, said lower catheter hose support are all positioned under the body in communication.

[0009] 为了进一步实现本发明,所述下定位体还包括连接支撑架侧壁的薄膜体,所述薄膜体包覆住所有支撑软管,支撑软管可将薄膜体支撑开。 [0009] In order to further implement the present invention, the lower body further comprises a positioning member connected to the support frame sidewall film, the film support body covering all live hose, hose supporting body supporting the film opened.

[0010] 为了进一步实现本发明,所述下定位体为充流体可向外膨胀扩张的膨胀体。 [0010] In order to further implement the present invention, the positioning body is a lower fluid-filled expandable outwardly expanded expandable body.

[0011] 为了进一步实现本发明,所述支撑架的容槽的开口处设置有堵头,所述堵头上设置有两个上下贯通的通液管,两个通液管的顶端分别卡入上导液管和下导液管,每一通液管内分别填充有橡胶塞,所述输送鞘包括鞘壳、伸缩杆、两条送液管和两根穿刺针,所述鞘壳的中间设置有上下贯通的滑孔,所述伸缩杆滑设在鞘壳的滑孔内,以沿着滑孔上下滑动,伸缩杆的中间设置有两个上下贯通的安装孔,两条送液管分别安装在两个安装孔内,两根穿刺针分别安装在两个安装孔的顶端开口处,且两根穿刺针分别与两条送液管相连通。 [0011] In order to further implement the present invention, the opening of the support frame is provided with a plug receptacle, said plug head is provided with two vertical through-penetrating catheter, the catheter tip through the two clamps into the catheter and the catheter, are filled with a rubber plug, the delivery sheath includes a sheath, the inner telescopic rod each through the liquid pipe, the intermediate pipe and the two liquid feeding two puncture needle, the sheath is provided with a housing and down through the slide hole, the telescopic sliding rod slidably disposed in the bore of a sheath to slide up and down along the slide hole, the telescopic rod is provided with two vertical through the middle mounting hole, two liquid feed tubes are installed in two mounting holes, two in the puncture needle are attached to the top opening of the two mounting holes, respectively, and the two needle communicating two liquid feeding tube.

[0012] 为了进一步实现本发明,所述鞘壳的滑孔的侧壁沿其长度方向设置有导轨,所述伸缩杆上的外壁沿其长度方向设置有形状与所述导轨适配的导向槽。 [0012] In order to further implement the present invention, the side wall of the slide hole a sheath along the longitudinal direction thereof is provided with a guide rail, an outer wall of the telescopic rod is provided with a shape adapted to the guide rail guide grooves along its length .

[0013] 为了进一步实现本发明,所述伸缩杆为螺杆,所述鞘壳上转动安装有轴套,轴套的内壁设置有与螺杆的外螺纹啮合的内螺纹,以驱动螺杆上下滑动 [0013] In order to further implement the present invention, the telescoping rod is a screw, the inner wall of the sheath hub rotatably mounted on the housing, the sleeve is provided with an external thread engaged with the internal threads of the screw, to drive the screw up and down the slide

[0014] 本发明的有益效果:本发明的上定位体和下定位体采用可向其内注入流体而迫使其向外膨胀或者向外张开的结构,方便其穿过心脏间隔缺损的缺口,可以快速实现支撑架的精确定位,支撑架的定位过程也不会给患者造成痛楚;另外,支撑架的开口处卡入有堵头,可以避免膨胀体或者所有支撑软管内的流体外泄,安全性更好;还有,本发明的上定位体和下定位体采用膨胀体,或者支撑软管和薄膜体的结合结构,可以使得封堵器与心脏间隔缺损的缺口位置贴附更好,密封性更好,封堵效果更好。 [0014] Advantageous effects of the present invention: on the positioning of the present invention may be employed and lower positioning body to which the injection fluid or forcing it to expand outwardly flared structure, which passes through the gap to facilitate cardiac septal defects, can quickly achieve precise positioning of the support frame, the support frame positioning process will not cause a patient pain; Further, the support frame has a plug opening into the card, or to avoid the expandable body fluid in all the support tube leakage, better security; and, on the positioning of the present invention and the positioning of the lower body with expandable body, or the support structure in conjunction with a hose and film body may cause cardiac septal defect occluder with a notch better attachment position, seal better, blocking better.

附图说明 BRIEF DESCRIPTION

[0015]图1为本发明的心脏间隔缺损封堵器的结构示意图; Schematic structural defect occluder in the heart of the present invention [0015] FIG 1 interval;

[0016]图2为本发明的心脏间隔缺损封堵器的剖视图; [0016] sectional view of a cardiac septal defect occluder of the present invention, FIG 2;

[0017]图3为本发明的封堵器的实施例一的剖视示意图; Schematic diagram of a cross-sectional view of the occluder [0017] FIG. 3 embodiment of the present invention;

[0018]图4为本发明的封堵器的实施例二的剖视示意图。 A schematic cross-sectional view according to a second embodiment of the closure device [0018] FIG. 4 of the present invention.

具体实施方式 Detailed ways

[0019]下面结合附图对本发明进行进一步阐述,其中,本发明的方向以图1为标准。 The drawings of the present invention is further described [0019] below with which, the present invention in the direction of FIG. 1 as a standard.

[0020] 如图1和图2所示,本发明的心脏间隔缺损封堵器包括封堵器I和输送鞘2,封堵器I与输送鞘2之间为可拆卸连接,手术的时候,利用输送鞘2将封堵器I输送到心脏间隔缺损的缺口位置,在封堵器I定位完成以后,释放输送鞘2,分离封堵器I和输送鞘2,抽出输送鞘2SP可实现封堵器I的安装。 [0020] and FIG. 1, the heart of the present invention comprises a septal defect occluder I and 2, when the occluder delivery sheath 2, the occluder and delivery sheath I is a detachable connection between the two, surgery, 2 using the delivery sheath occluder I delivered to cardiac septal defect gap positions occluder I after positioning is completed, delivery sheath 2 is released, and the separator I occluder delivery sheath 2, delivery sheath extraction block may be implemented 2SP I is installed.

[0021] 封堵器I包括支撑架11、上定位体12、下定位体13、上导液管14、下导液管15和堵头16,其中: [0021] I occluder includes a support frame 11, the positioning member 12, the positioning member 13, the liquid guide pipe 14, the plug 15 and the catheter 16, wherein:

[0022] 支撑架11的中间设置有容槽111,容槽111的底端呈开口设置,支撑架11的外部轮廓呈圆柱体。 Intermediate [0022] The support frame 11 is provided with a receiving groove 111, a bottom end 111 of receptacle shape opening, the outer contour of the support frame 11 of a cylindrical body.

[0023]上定位体12和下定位体13分别间隔设置在支撑架11的外壁,上定位体12位于下定位体13的上方,上定位体12和下定位体13采用相同的结构。 [0023] positioned on the positioning member 12 and the lower spacer 13 are disposed in the outer wall of the support frame 11, upper body 12 positioned on the positioning member 13 is positioned, the positioning member 12 and positioning member 13 under the same structure. 如图3所示,上定位体12和下定位体13均为充流体可向外膨胀扩张的膨胀体(类似于气球),膨胀体呈圆环状分布在支撑架圆周壁上,当膨胀体内充满流体时,膨胀体开始向外扩张而胀大;如图4所示,上定位体12和下定位体13还可以采用下述结构:上定位体12 (或者下定位体13)包括数个支撑软管17和薄膜体18,每个支撑软管17具有一定的柔韧性,即支撑软管17可弯折,所有支撑软管17呈放射状分布在支撑架的轴向圆周壁上,每个支撑软管17的一端分别连接支撑架11,其另一端水平向外伸出,薄膜体18包覆住所有的支撑软管17,薄膜体18连接支撑架I的侧壁,利用支撑软管17将薄膜体18支撑开。 As shown in FIG, 13 are positioned on the fluid-filled expandable body 12 and the outward expansion of the expandable body positioning member (balloon-like) 3, the expansion member annularly distributed in the peripheral wall of the support frame, when the expansion body when filled with fluid, it begins to expand outwardly expandable body inflated; FIG. 4, the positioning body 12 and the lower positioning member 13 may also be employed the following configuration: positioning 12 (or the positioning member 13) comprises a plurality of body the support tube 17 and film body 18, each support tube 17 has a certain flexibility, i.e., the support tube 17 may be bent all the hoses 17 are radially distributed support in axial circumferential wall of the support frame, each of end of the support tube 17 are connected to the support frame 11, and the other end projecting outwardly horizontally, film body 18 covering all the live support tube 17, the film body 18 is connected to the support frame side wall I, the hose 17 by the support the opening and the support film 18.

[0024]上导液管14和下导液管15均固定安装在支撑架11的容槽111内,上导液管14的一端与上定位体12相连通,即上导液管14的一端与膨胀体或者所有支撑软管17相连通(上定位体12),上导液管14的另一端延伸至靠近支撑架11容槽111的开口位置;下导液管15的一端与下定位体13相连通,即下导液管15的一端与膨胀体或者所有支撑软管17相连通(下定位体13),下导液管15的另一端延伸至靠近支撑架11容槽111的开口位置。 [0024] The catheter 14 and the catheter tube 15 are fixedly mounted in the receiving groove 11 of the support frame 111, one end of the liquid guide pipe 14 and the positioning body 12 in communication, i.e., one end 14 of the catheter or all of the expandable body is supported through a hose 17 connected (on the positioning member 12), the other end of the catheter 14 extends to a position near the opening 111 of the support frame 11 receiving slot; the lower end of the positioning member 15 of the liquid downcomer 13 in communication, i.e. the end of the catheter with the expandable body 15, or all of the support tube 17 in communication (the positioning member 13), the other end of the guide catheter 15 extends to a position close to the opening 111 of the support frame 11 receiving grooves .

[0025] 堵头16卡设在支撑架11容槽111的开口处,堵头16上设置有两个上下贯通的通液管161,两个通液管161分别卡入上导液管14和下导液管15,每个通液管161内分别填充有橡胶塞19。 [0025] The plug 16 is provided in the card receiving slot 11 opening of the support frame 111, the plug 16 is provided with two vertically penetrating through the liquid pipe 161, a liquid conduit 161 are two card 14 into the catheter tube and the catheters 15, 19 are filled with a rubber plug 161 within each liquid conduit.

[0026] 输送鞘2包括鞘壳21、螺杆22、两条送液管23、两根穿刺针24和轴套25,其中: [0026] 2 comprising a sheath delivery sheath 21, a screw 22, two liquid delivery tube 23, two puncture needle 24 and the sleeve 25, wherein:

[0027] 鞘壳21的中间设置有上下贯通的滑孔211,支撑架11的底端套接在鞘壳21顶端的滑孔211内,滑孔211的侧壁沿其长度方向设置有导轨,导轨为一平整的切面或者为一条凸起的滑轨,鞘壳21与支撑架11之间可以采用卡扣连接方式或者螺纹连接方式连接。 [0027] interposition of a sheath 21 has a slide hole 211 vertically penetrating the bottom end of the support frame 11 is sleeved inside the slide hole 21 to the top of a sheath 211, the side walls of the slide hole 211 is provided with a guide rail along its length, a flat guide section of a projection or a slide rail, a sheath 21 and the support frame may be employed a snap connection or a threaded connection between the connector 11.

[0028] 螺杆22的外壁设置有外螺纹,螺杆22的外壁沿其长度方向设置有形状与导轨适配的导向槽,导向槽为一平整的切面或者为一条凹设的导槽,通过导向槽与导轨的配合,以实现螺杆22只作上下方向的运动,从而保证两根穿刺针24准确的扎入上导液管14和下导液管15内,螺杆22的中间设置有两个上下贯通的安装孔221。 [0028] The outer wall 22 is provided with an external screw thread, the outer wall 22 is provided with a screw shape with the guide rail guide groove adapted along its length, as a guide groove or a flat section of a recessed guide groove by the guide groove cooperate with the guide rail, in order to achieve the screw 22 for vertical movement, thus ensuring the two needle bar 24 accurately into the catheter tube 15, the intermediate 14 and the screw 22 is provided at the catheter has two vertically penetrating mounting holes 221.

[0029] 两条送液管23分别安装在螺杆22的两个安装孔221内,两条送液管23的两端分别向两侧延伸至靠近安装孔221的开口位置。 [0029] The two liquid feed tube 23 are mounted in two mounting holes 221 of the screw 22, both ends of the two liquid feeding tube 23 extends to a position close to the opening 221 of the mounting hole to both sides, respectively.

[0030] 两根穿刺针24分别安装在螺杆22的两个的安装孔221的顶端,且两根穿刺针24分别与两条送液管23相连通,两根穿刺针24的穿刺头朝上。 [0030] The two puncture needle 24 are mounted in two mounting holes 22 of the screw tip 221, needle 24 and two respectively two liquid feeding pipe 23 communicating, the puncture needle 24 of the two head- .

[0031] 轴套25转动安装在鞘壳21上(通过轴承),轴套25的内壁设置有与螺杆22的外螺纹啮合的内螺纹,轴套25在转动的过程中,通过其内螺纹与螺杆22的外螺纹的配合以实现螺杆22沿着滑孔211上下滑动,以带动两根穿刺针24分别刺穿橡胶塞19而扎入上导液管14和下导液管15内,以及带动两根穿刺针24分别脱离橡胶塞19。 [0031] The sleeve 25 rotatably mounted on a sheath 21 (through the bearing), the inner wall of the sleeve 25 is provided with an outer thread engaging the internal thread of the screw 22, the sleeve 25 during rotation by the inner threads with external screw thread 22 of the screw 22 slides up and down in order to achieve along the slide hole 211, to drive the two needle 24 pierce the rubber plug 19 on the catheter and pierce the inner tube 14 and the catheter 15, and a drive two puncture needle 24 from the rubber plug 19, respectively.

[0032]以上所述仅为本发明的较佳实施方式,本发明并不局限于上述实施方式,在实施过程中可能存在局部微小的结构改动,如果对本发明的各种改动或变型不脱离本发明的精神和范围,且属于本发明的权利要求和等同技术范围之内,则本发明也意图包含这些改动和变型。 [0032] The above are only preferred embodiments of the present invention, the present invention is not limited to the above embodiment, there may be minor structural changes in the local process embodiment, the present invention, if various modifications or variations without departing from the present the spirit and scope of the invention, and the claims of the invention and equivalents within the technical scope of, the present invention intends to include these modifications and variations.

Claims (10)

1.一种心脏间隔缺损封堵器,它包括封堵器,以及与所述封堵器可拆卸连接的输送鞘,其特征在于,所述封堵器包括支撑架、上定位体和下定位体,所述支撑架的中间设置有容槽,所述容槽的底端呈开口设置,所述上定位体和下定位体分别间隔设置在支撑架的外壁,支撑架与输送鞘之间为可拆卸连接,所述支撑架的容槽内设置有与上定位体相连通的上导液管,以及与下定位体相连通的下导液管,以分别向上定位体和下定位体内注入流体而迫使其向外膨胀或者向外张开。 A cardiac septal defect occluder comprising occluder, the occluder and delivery sheath removably connected, wherein the occluder comprises a support frame, upper and lower positioning the positioning body , and the middle of the support frame is provided with a receiving groove, the receiving groove form a bottom end opening, the upper and the lower positioning member are positioned between the support frame spaced from the outer wall of the support frame of the delivery sheath is detachably connected to a supporting frame with a receiving groove is provided on the positioning member in communication with the catheter, and the catheter body in communication with the positioning of the positioning body and respectively upwardly positioned lower in vivo injection fluid forcing its expanded or flared outwardly.
2.根据权利要求1所述的心脏间隔缺损封堵器,其特征在于,所述上定位体包括数个具有一定的柔韧性的支撑软管,每一所述支撑软管的一端分别连接支撑架,其另一端分别水平向外伸出,所述上导液管分别与所有支撑软管相连通。 According to claim 1 cardiac septal defect occluder claim, wherein said positioning member comprises a plurality of support tube has a certain flexibility, support each end of the hose connected supports frame, the other end thereof outwardly projecting horizontally, on the catheter are connected to all the support on the hose.
3.根据权利要求2所述的心脏间隔缺损封堵器,其特征在于,所述上定位体还包括连接支撑架侧壁的薄膜体,所述薄膜体包覆住所有支撑软管,支撑软管可将薄膜体支撑开。 According to claim cardiac septal defect occluder of claim 2, wherein said body further comprises a positioning support frame connected to the side wall of the film body, the film body covering all live support hose, soft support body supporting the film tube may open.
4.根据权利要求1所述的心脏间隔缺损封堵器,其特征在于,所述上定位体为充流体可向外膨胀扩张的膨胀体。 4. The cardiac septal defect occluder of claim 1, characterized in that the positioning body is a fluid-filled expandable outwardly expanded expandable body claims.
5.根据权利要求1所述的心脏间隔缺损封堵器,其特征在于,所述下定位体包括数个具有一定的柔韧性的支撑软管,所述下定位体的每一所述支撑软管的一端分别连接支撑架,其另一端分别水平向外伸出,所述下导液管分别与下定位体的所有支撑软管相连通。 According to claim 1 cardiac septal defect occluder claim, wherein said body comprises a lower positioning tube having a plurality of support of some flexibility, the soft support in each of said positioning member end of the tube are connected to the support frame, its other end projecting outwardly horizontally, the lower catheter hose support are all positioned under the body in communication.
6.根据权利要求5所述的心脏间隔缺损封堵器,其特征在于,所述下定位体还包括连接支撑架侧壁的薄膜体,所述薄膜体包覆住所有支撑软管,支撑软管可将薄膜体支撑开。 According to claim cardiac septal defect occluder of claim 5, wherein said body further comprises a lower positioning bracket connected to a sidewall of the film body, the film body covering all live support hose, soft support body supporting the film tube may open.
7.根据权利要求1所述的心脏间隔缺损封堵器,其特征在于,所述下定位体为充流体可向外膨胀扩张的膨胀体。 7. The cardiac septal defect occluder of claim 1, characterized in that the positioning body is a lower fluid-filled expandable outwardly expanded expandable body claims.
8.根据权利要求1所述的心脏间隔缺损封堵器,其特征在于,所述支撑架的容槽的开口处设置有堵头,所述堵头上设置有两个上下贯通的通液管,两个通液管的顶端分别卡入上导液管和下导液管,每一通液管内分别填充有橡胶塞,所述输送鞘包括鞘壳、伸缩杆、两条送液管和两根穿刺针,所述鞘壳的中间设置有上下贯通的滑孔,所述伸缩杆滑设在鞘壳的滑孔内,以沿着滑孔上下滑动,伸缩杆的中间设置有两个上下贯通的安装孔,两条送液管分别安装在两个安装孔内,两根穿刺针分别安装在两个安装孔的顶端开口处,且两根穿刺针分别与两条送液管相连通。 According to claim 1 cardiac septal defect occluder claim, wherein the opening of the support frame is provided with a plug receptacle, said plug head is provided with two liquid flowing down through tube , the top two cards are a liquid conduit into the catheter and the catheter, are filled with a rubber plug through the liquid in each tube, the delivery sheath includes a sheath, telescopic rod, two and two fluid delivery line needle, the sheath intermediate housing is provided with a slide hole vertically penetrating the telescopic slide rods slidably disposed in the bore of a sheath to slide up and down along the slide hole, the intermediate telescopic rod is provided with two vertically penetrating mounting holes, two liquid feed tubes are installed in two mounting holes, two in the puncture needle are attached to the top opening of the two mounting holes, respectively, and the two needle communicating two liquid feeding tube.
9.根据权利要求8所述的心脏间隔缺损封堵器,其特征在于,所述鞘壳的滑孔的侧壁沿其长度方向设置有导轨,所述伸缩杆上的外壁沿其长度方向设置有形状与所述导轨适配的导向槽。 9. The heart of the septal defect occluder in claim 8, wherein the side wall of the slide hole a sheath is provided with a guide rail along its length, the outer wall of the telescopic rod disposed along the longitudinal direction thereof shape of the guide groove rails adapted.
10.根据权利要求8所述的心脏间隔缺损封堵器,其特征在于,所述伸缩杆为螺杆,所述鞘壳上转动安装有轴套,轴套的内壁设置有与螺杆的外螺纹啮合的内螺纹,以驱动螺杆上下滑动。 10. The heart according to claim 8 septal defect occluder, characterized in that the telescopic rod is a screw, the sheath sleeve rotatably mounted on the housing, the inner wall is provided with a sleeve engaging with an outer screw thread internal thread, the drive screw to slide vertically.
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