CN2248046Y - Non-stress elastic biological cardiac valve - Google Patents

Non-stress elastic biological cardiac valve Download PDF

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Publication number
CN2248046Y
CN2248046Y CN 95210109 CN95210109U CN2248046Y CN 2248046 Y CN2248046 Y CN 2248046Y CN 95210109 CN95210109 CN 95210109 CN 95210109 U CN95210109 U CN 95210109U CN 2248046 Y CN2248046 Y CN 2248046Y
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China
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valve
flap
biological
frame
holder
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CN 95210109
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Chinese (zh)
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朱晓东
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北京市普惠生物医学工程公司
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Publication of CN2248046Y publication Critical patent/CN2248046Y/en

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Abstract

The utility model relates to an artificial heart valve which is characterized in that the upper seat of a valve seat is provided with a valve shelf which is provided with three convex valve angles homogeneously distributed on the circumference of the valve shelf. Every two valve angles are connected by a valve leave made of biological material. The lower parts of three valve leaves are connected with the lower circular arc parts of the valve shelf. The upper parts of the valve leaves are sliding parts. The valve leaves are opened or closed along with the normal direction flow and the reverse flow of blood. The valve shelf is composed of an elastic bracket and wrapping fabric wrapped outside. The valve shelf can be leaned inwards or outwards from a neutral point. Sutural methods among the valve shelfs, the valve seat, the valve leaves and a sutural margin are adopted. The utility model has long service life and no stress.

Description

无应力弹性生物心脏瓣膜 Stress-free elastic biological heart valves

本实用新型涉及一种人工心脏瓣膜。 The present invention relates to an artificial heart valve.

目前,生物人工心脏瓣膜是由全部或部分动物组织为材料制成的,就象单向阀门,能在人体的生理位置全部替代瓣膜的结构,并起到瓣膜的功能作用。 Currently, bioprosthetic heart valves are made of all or part of animal tissue material, as a one-way valve, the valve structure can replace all physiological body position, and functions as the valve action. 但就目前的生物瓣膜来讲,在耐久性和抗钙化方面有着明显不足,所以影响了瓣膜的寿命。 However, the current biological valve is concerned, there is clearly insufficient in terms of durability and resistance to calcification, it affects the life of the valve.

本实用新型的目的是提供一种无应力弹性生物心脏瓣膜,该瓣膜寿命长,可降低宿主组织承受的人工心脏瓣膜作用力,有利于心功的恢复和伤口愈合。 The object of the present invention is to provide a bioprosthetic heart valves elastic stress-free, long life of the valve, the biasing force can reduce the prosthetic heart valve in host tissue bear, cardiac work is conducive to wound healing and recovery.

本实用新型是通过下述方式实现的。 The present invention is achieved by the following manner. 是在瓣座上座落一个瓣架,瓣架有三个凸起的瓣角,均匀分布在瓣架的圆周上,在每两个瓣角之间用一片生物材料制成的瓣叶连接,共有三个瓣叶,瓣叶的下部与瓣架的下圆弧部分连接在一起,瓣叶上部为游动部分。 A valve seat located in a valve holder, the valve holder with a flap angle of the three projections uniformly distributed over the circumference of the valve frame, each leaflet between two lobes with an angular biological material is connected, a total of three a leaflet, the arcuate lobe portion of the lower frame and the leaflets are joined together, the upper part of the leaflet is swimming. 该游动部分称为瓣叶游离缘。 The swimming part is called the free edge of the leaflets. 该瓣叶游离缘可在两瓣角之间摆动。 The free edge of the flap can swing between two leaf angle. 该生物心脏瓣膜的瓣叶,随着血液的正向流与反向流而开启或闭合。 The biological heart valve leaflets, with the forward flow of blood flow and reverse open or closed. 实现心脏瓣膜的功能。 Achieve heart valve function.

下面结合附图作进一步的说明。 BRIEF DESCRIPTION further binding.

图1为无应力弹性生物心脏瓣膜外观图图2为弹性支架的弹性运动示意图图3为弹性支架与瓣环的相对位置及连接图图4为瓣座、瓣架、瓣叶的结构图图5为在瓣角处瓣架与瓣叶的缝合图这种无应力弹性生物心脏瓣膜其外观如图1所示,在瓣座1上座落一个瓣架2,瓣架2有三个凸起的瓣角3,均匀分布在瓣架2的圆周上。 Figure 1 is a stress-free elastic bioprosthetic heart valve is an external view of FIG. 2 is a resilient movement of a schematic view of an elastic holder 3 relative position and a connection diagram showing an elastic holder and the annulus 4 of the valve seat, the valve frame structure of FIG leaflet 5 as the flap frame and the flap corner flap sutured FIG such bioprosthetic heart valves elastically unstressed appearance shown in Figure 1, is located on a flap valve seat holder 12, with a flap valve holder 2 three angular projections 3, uniformly distributed over the circumference of the valve holder 2. 在每两个瓣角3之间用一片生物材料制成的瓣叶4连接,共有三个瓣叶4,瓣叶4的下部与瓣架2的下圆弧部分5连接在一起,固定不动。 By leaflets made of a biological material 4 is connected between every two corner flaps 3, 4 there are three leaflets, the arc portion 5 2 are connected together with a lower flap valve frame 4, stationary . 瓣叶4上部的游动部分称为瓣叶游离缘,该游离缘可以在两瓣角3之间摆动。 An upper traveling part of the flap 4 is referred to as the leaflet free edge, the free edge can be pivoted between two angle 3. 当三个瓣叶游离缘分离开形成一个圆形桶时,该生物心脏瓣膜呈开启状态,供血液通过。 When the three leaflets away from the free fate form a tubular barrel, the biological heart valve in an open state, for the blood through. 当三个瓣叶游离缘合并在一起时,该生物心脏瓣膜呈关闭状态,当关闭时,阻挡血液的通过。 When the three combined leaflet free edge, the biological heart valve was closed, when closed, blocked by the blood. 本生物心脏瓣膜瓣叶运动的动力源是血液的流动,随着血液正向流与反向流而开启或闭合。 A power source of the present bioprosthetic heart valve leaflet motion is flow of blood, with the blood flow and the forward and reverse flow opening or closing. 实现心脏瓣膜的功能。 Achieve heart valve function.

如图1所示,在瓣座1的周边,有一个用涤纶布制成的缝合缘6缝在瓣座1上,用于瓣膜与宿主组织之间的连接。 1, the periphery of the valve seat 1, a rim with a suture made of polyester cloth sewn on the valve seat 6 1, for the connection between the valve and the host tissue.

如图1所示,生物瓣叶4是夹在瓣架2的下圆弧部分5和瓣座1的上圆弧之间,经缝合后防止其受血流作用而脱落的。 1, the biological leaflet 4 sandwiched between the arcuate flap holder 2 and the lower arc portion 5 of valve housing 1, after stitching to prevent it from falling off by the action of the blood flow.

所述瓣架是由弹性支架、外面包裹的包布所组成。 The valve holder is an elastic holder, the outer package composed of cloth. 弹性支架是用不锈钢或钛合金钢制成的具有弹性的钢丝架,包布为涤纶布。 Stainless steel or a resilient mount having a resilient wire rack made of titanium steel, cloth of polyester cloth. 其形状如图2所示,弹性支架20的弹性运动点如图2中箭头所示。 The shape shown in Figure 2, the elastic movement of the flexible holder 20 in the arrow points in FIG. 2 FIG. 可从中性点向内倾,内倾角21为8°;向外倾,外倾角22为4°。 Neutral point can be inwardly inclined, the angle 21 is 8 °; tilting outward camber 22 is 4 °.

这种无应力弹性生物心脏瓣膜在工作时,实际要承受很复杂的血流运动,为叙述方便其见,结合图2,简单说来就是:当瓣膜受通过(即正向)血流的作用时,弹性支架20向外张开,因此,可以扩大通过面积;当受返回血流的作用时,血液冲击瓣叶使之闭合,瓣叶则牵动弹性支架20(即瓣架)向中心收缩,由于弹性支架的回弹,可以缓慢地接受返流冲击力,因此可以有效地缓解血液返流时由于瓣叶关闭所产生的水锤作用力,大范围地减低返流作用力。 This non-elastic stress at work bioprosthetic heart valves, to bear the actual blood sports complex, as described facilitate their view, combined with Figure 2, it simply is: When the action by the valve through (ie positive) blood flow when the elastic flared stent 20, it can be enlarged by the area; when returned by the action of the blood flow, so that blood impact leaflet closed, the flap 20 touches the resilient support (i.e. carrier flap) contracted toward the center, Since the rebound resilience of the stent may be slowly reflux acceptable impact force, and therefore can effectively alleviate the biasing force due to the water hammer leaflet closed regurgitation generated, a wide range reflux force reduction. 由于这种缓冲作用,降低了瓣叶的承受的拉力。 Because of this buffering action, reduce the tension to withstand the leaflets. 明显的结果是:(1)提高了瓣叶的寿命。 The result is obvious: (1) improving the life of the leaflets. (2)降低宿主组织承受的人工心脏瓣膜作用力,有利于心功的恢复和伤口愈合。 (2) reduce host tissue heart valve prosthesis withstand force, cardiac work is conducive to wound healing and recovery.

所述瓣座是由瓣环包上包布所组成。 Said flap valve seat by the enveloping cloth composed. 瓣环是用不锈钢或钛合金钢制成的,包布为涤纶布。 Annulus is made of stainless steel or titanium alloys, polyester cloth to cloth. 如图1所示,当弹性瓣架2在受瓣叶4的拉动时,瓣座1可实现其弹性作用的依托;同时又防止瓣架2产生超过规定的弹性和塑性变形,以保持瓣膜的正常工作。 1, when the resilient flap is pulled by the frame 2 when the flap 4, the valve seat 1 may be implemented relying on its spring action; the frame 2 while preventing the flap elastic and plastic deformation exceeds a predetermined, in order to maintain the valve normal work.

为保证弹性支架(即瓣架)既有要求的弹性,又不会产生意外的变形,弹性支架20(即瓣架)与瓣环10的关系如图3所示,瓣环10上有三个均匀分布的圆弧11,弹性支架20的下圆弧部分正好坐在上面并加以固定。 To ensure the elasticity of the bracket (i.e., the flap frame) both the requirements, and will not produce unexpected deformation of the elastic holder 20 (i.e., valve holder) and the relationship between the annulus 10 shown in Figure 3, there are three evenly on the ring 10 distribution arc 11, the arc portion of the elastic holder 20 just sitting on top and secured. 图2、图3中的标号23所示为弹性支架20的弹性活动范围。 2, reference numeral 3 shown in FIG. 23 the elastic range of motion of the elastic bracket 20.

所述瓣架座落在所述瓣座上及与所述瓣叶的连接方式为:所述瓣座上有三个均匀分布的圆弧,所述瓣架的下圆弧部分是通过瓣叶的下部座在其上面,从该心脏瓣膜的外部,将所述瓣架的包布、所述瓣叶、所述瓣环的包布缝合在一起。 The flap is located in the valve seat carrier and connection of the leaflet is: the valve seat has three evenly distributed circular arc, the circular arc portion of the valve frame through the leaflets lower seat thereon, from the outside of the heart valve, the flap of the cloth holder, the leaflet, the annulus cloth sewn together.

图4是图1中A位置的剖面,显示瓣架轮廓圆弧最下端处瓣架、瓣座、瓣叶、缝合缘之间的相互位置,及缝合方法。 FIG 4 is a sectional position A in FIG. 1, showing the valve at the lowermost arcuate rack profile mutual position between the valve cage, valve seat, valve leaflets, edge suturing and suture. 从图4可以看出,瓣架2在上面,其包钢丝架的涤纶布的接口留在外面,即图4中的左面;在包布的下面是生物瓣叶4,再下面是瓣座1(即包有涤纶布的瓣环)。 As can be seen from Figure 4, frame 2 above the flap, which package of polyester cloth wire rack interface remains outside, i.e. to the left in FIG. 4; in the following flipper leaflets is biological 4, and below that is a valve seat (i.e., the packet has a polyester cloth annulus). 从瓣膜外面(即图4中的左面)将瓣架2上的包布、生物瓣叶4和瓣座1上的包布用缝合线24缝合在一起。 The valve from the outside (i.e., left in FIG. 4) on the lobe of the flipper frame 2, and a biological leaflet valve seat 4 on a package cloth 24 are stitched together with sutures. 当把缝合线24(即涤纶线)拉紧时,也就把瓣叶4紧紧地固定在瓣座1上。 When the suture thread 24 (i.e., polyester thread) tensioned, the flap 4 is also put tightly fixed to the valve housing 1. 这样的结构就把针孔所形成的“拉伸应力集中”推到生物瓣膜的瓣叶4工作部分的外部。 "Tensile stress concentration" push leaflets of the biological valve to the outside of the working portion 4 to put such a structure formed by the pinhole. 消除了生物瓣叶4承受作用力部分产生应力集中的可能性。 Eliminating the biological leaflets urging force receiving portion 4 the possibility of stress concentration. 瓣座1上的涤轮布是通过缝合线12缝合在瓣环上的。 Flap holder on a polyester cloth wheel 12 by stitching of suture on the annulus.

在瓣角处生物瓣叶与瓣架的连接如图5所示。 5 is connected with the biological valve leaflets in the valve frame corners. 图5是图1中B面位置的剖面图,每两个瓣叶4并在一起,卡进瓣角3的缝隙之中,让瓣叶4与瓣角3处的涤纶布25从外面的缝合位置26处缝合起来,并从上面抽线与瓣角3的顶部拉紧。 FIG 5 is a sectional view of FIG. 1 B surface position, each flap 4 and the two together, the card into the slot in the corner flap 3, so that the flap 4 and the angle of the flap 3 from the outside of the polyester cloth 25 sewn sutured at position 26, and drawn from above the top wire 3 and the angle of the flap tension. 然后用徊形针法,沿弹性支架20把瓣叶4与瓣架的涤纶布25缝在一起,并在封口位置27上封口。 Then heighten needle-shaped, elastic bracket 20 along the flap 4 and the valve holder 25 of polyester fabric sewn together, and sealed in the sealing position 27. 当血液正向流时,瓣叶4开启,在瓣叶开启位置28上;当血液反向流时,瓣叶4闭合,在瓣叶闭合位置29上(即图5中的虚线位置上)。 When the forward blood flow, the flap 4 is opened, on the flap 28 leaves open position; when reverse flow of blood, the flap 4 is closed, the leaflets in the closed position 29 (i.e., the dashed line in FIG. 5 positions).

所述瓣叶是经过硫酸铬盐处理的生物瓣叶。 The leaflet is the result of biological processing of chromium sulfate leaflets.

本瓣膜的瓣叶是经过HC(即羟基铬)生化处理,其热皱缩温度在82℃-95℃之间。 This flap valve is the result of HC (i.e. chromium hydroxy) biological treatment, thermal shrinkage at a temperature between 82 ℃ -95 ℃. 强化了纤维组织的络合,有效的提高了生物片的抗拉强度和抗钙化的能力。 Strengthen the complex fibrous tissue, effectively improve the ability of tensile and biological piece of calcification.

所述瓣架的弹性支架、所述瓣座的瓣环的不锈钢或钛合金钢的材料为1Cr18Ni9Ti,3J21,T12。 The flap elastic holder frame, stainless steel or titanium alloy material of the flap valve seat ring is 1Cr18Ni9Ti, 3J21, T12. 或类似以上牌号的材料。 Or more grades of similar material.

Claims (6)

1.一种无应力弹性生物心脏瓣膜,其特征在于是在瓣座上座落一个瓣架,瓣架有三个凸起的瓣角,均匀分布在瓣架的圆周上,在每两个瓣角之间用一片生物材料制成的瓣叶连接,共有三个瓣叶,瓣叶的下部与瓣架的下圆弧部分连接在一起,瓣叶上部为游动部分。 A stress-free elastomeric bioprosthetic heart valves, characterized by being located in a valve seat in the valve holder, the valve holder with a flap angle of the three projections uniformly distributed over the circumference of the valve frame, each of the two lobes of the angle a space between the leaflets made of biological material is connected, there are three leaflets, the arcuate lobe portion of the lower frame and the flap are connected together, the upper part of the leaflet is swimming.
2.根据权利要求1所述的无应力弹性生物心脏瓣膜,其特征在于:所述瓣架是由弹性支架、外面包裹的包布所组成。 The bioprosthetic heart valves elastically unstressed according to claim 1, wherein: said flap is resilient mount frame, outside the package composed of cloth.
3.根据权利要求2所述的无应力弹性生物心脏瓣膜,其特征在于:所述瓣座是由瓣环包上包布所组成。 According to claim elastically unstressed biological heart valve of claim 2, wherein: said valve seat is an annulus consisting of cloth wrapped.
4.根据权利要求3所述的无应力弹性生物心脏瓣膜,其特征在于:所述瓣架座落在所述瓣座上及与所述瓣叶的连接方式为:所述瓣座上有三个均匀分布的圆弧,所述瓣架的下圆弧部分是通过瓣叶的下部座在其上面,从该心脏瓣膜的外部,将所述瓣架的包布、所述瓣叶、所述瓣环的包布缝合在一起。 According to claim elastically unstressed biological heart valve of claim 3, wherein: said flap is located in the valve seat carrier and connection of the leaflet is as follows: the valve seat has three evenly distributed circular arc, the circular arc of the lower portion of the flap lower seat frame by flap thereon, from the outside of the heart valve, the flap of the cloth holder, the leaflet, the flap flipper ring sewn together.
5.根据权利要求4所述的无应力弹性生物心脏瓣膜,其特征在于:所述瓣叶是经过硫酸铬盐处理的生物瓣叶。 According to claim elastically unstressed biological heart valve of claim 4, wherein: said flap is the result of biological processing of chromium sulfate leaflets.
6.根据权利要求5所述的无应力弹性生物心脏瓣膜,其特征在于:所述瓣架的弹性支架、所述瓣座的瓣环的不锈钢或钛合金钢的材料为1Cr18Ni9Ti,3J21,T12。 The bioprosthetic heart valves elastically unstressed according to claim 5, wherein: said resilient flap holder frame, stainless steel or titanium alloy material of the valve seat annulus is 1Cr18Ni9Ti, 3J21, T12.
CN 95210109 1995-05-15 1995-05-15 Non-stress elastic biological cardiac valve CN2248046Y (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1701770B (en) 2005-07-08 2011-04-27 北京佰仁医疗科技有限公司 Elastic artificial biological heart valve
CN101188985B (en) 2005-04-06 2011-07-06 爱德华兹生命科学公司 Connecting band and stress absorbing frame for highly flexible heart valve
CN103384505A (en) * 2011-02-18 2013-11-06 D·J·威特利 Heart valve
CN104799975A (en) * 2015-04-20 2015-07-29 杭州嘉和众邦生物科技有限公司 Artificial bioprosthetic heart valve and production method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101188985B (en) 2005-04-06 2011-07-06 爱德华兹生命科学公司 Connecting band and stress absorbing frame for highly flexible heart valve
CN1701770B (en) 2005-07-08 2011-04-27 北京佰仁医疗科技有限公司 Elastic artificial biological heart valve
CN103384505A (en) * 2011-02-18 2013-11-06 D·J·威特利 Heart valve
US9259313B2 (en) 2011-02-18 2016-02-16 David J. Wheatley Heart valve
CN104799975A (en) * 2015-04-20 2015-07-29 杭州嘉和众邦生物科技有限公司 Artificial bioprosthetic heart valve and production method thereof

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