CN100551461C - Membranous sealing device and trocar and catheter sheath tube using the same - Google Patents

Membranous sealing device and trocar and catheter sheath tube using the same Download PDF

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Publication number
CN100551461C
CN100551461C CN 200710038109 CN200710038109A CN100551461C CN 100551461 C CN100551461 C CN 100551461C CN 200710038109 CN200710038109 CN 200710038109 CN 200710038109 A CN200710038109 A CN 200710038109A CN 100551461 C CN100551461 C CN 100551461C
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housing
membrane
edge
sealing
catheter sheath
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CN 200710038109
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CN101264368A (en
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刘洪亮
张传忠
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上海华硅科技有限公司
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Abstract

本发明公开了一种膜性密封装置,旨在提供一种在没有物体穿过和穿过粗细差别很大的物体时都能保证对流体的密封性的膜性密封装置。 The present invention discloses a membrane sealing device aims at providing a when no object passes through the thickness and through the very different objects can guarantee sealing means sealing film fluid. 该装置包括管状壳体和至少一组膜瓣,每组共有两片,为低弹性的柔软薄膜,每片膜瓣有一个游离缘和一个结合缘,游离缘和结合缘汇合处为两个瓣尖,结合缘与壳体紧密结合,游离缘可以自由摆动,两片膜瓣的瓣尖分别在壳体处结合,每片膜瓣和壳体形成一个袋状结构,两片膜瓣分别各自向对侧摆动时可以达到或超过壳体通过两膜瓣瓣尖结合点的纵切平面。 The apparatus includes a tubular housing and at least a set of petals, each a total of two, a low elastic flexible membrane, each membrane sheet has a free flap edge and a binding edge, the free edge and the bound edge of the confluence of two lobes sharp, closely combined with the housing edge, the free edge can swing freely, two petal cusp are incorporated in the housing, the housing and each piece of petal form a bag-like structure, the two films to each flap, respectively, contralateral be achieved or exceeded by two housing longitudinal plane of the membrane bound prosthetic sharp point swing. 所述的膜性密封装置可以具体应用在血管介入手术用导管鞘管上,用于防止血管血液的外流,或应用在在腔镜手术用的穿刺套针管上,封闭用于扩张手术视野的气体。 The sealing means may be a film in the specific application vascular interventional procedure using the catheter sheath, the gas for preventing the outflow of the blood vessels, or applied on the puncture trocar tube with laparoscopic surgery, the surgical field is closed for expanding .

Description

膜性密封装置及应用该装置的套针管和导管鞘管 Application of the membrane and the sealing means trocar tube and the sheath of the catheter device

技术领域 FIELD

本发明涉及一种膜性密封装置,还涉及一种防止血液回流的血管介入导管鞘管和一种用于人体腔镜手术的穿刺套管针系统。 The present invention relates to a membrane seal means further relates to a method of preventing backflow of blood vessels interventional catheter sheath body and one trocar laparoscopic surgery system for a puncture. 背景技术 Background technique

在对人体进行复杂介入手术时,可能需要反复更换介入器械,这些器械进出作为介入通道血管时可能会发生失血,操作稍有不当还会造成血管损伤,导管鞘管的作用是插入介入通道血管,其他介入器械通过导管鞘管进入血管,这个过程中,血液也可能通过导管鞘管流出体外;使用腹腔镜对人体腹腔实施钥匙孔手术时,需要先用包括套针管和针芯的套管针系统穿刺腹壁,拔出针芯,建立手术通道。 When the human body to perform complex surgical intervention, may need to repeatedly replace the interventional instrument, blood loss may occur when these interventional vascular channel as the instrument out, improper operation will result in a slight vascular injury, the role of the catheter sheath is inserted into a blood vessel intervention channel, other interventional devices into the vessel via a catheter sheath, this process, blood is also possible out of the body through a catheter sheath; when human peritoneal laparoscopic embodiment keyhole surgery, the need to use the system comprises a trocar and trocar tube of the needle core puncturing the abdominal wall, pull out the needle core, the channel establishment procedure. 在手术中通过该通道更换手术器械,这个过程中需要减少套针管的气体泄漏,维持腹腔内的充气压力。 In replacement surgery, the surgical instrument through the channel, this process is necessary to reduce gas leakage trocar tube, inflation pressure is maintained within the abdominal cavity. 现有的导管鞘管或穿刺套针管上有的设置了的膜性密封结构,其膜性部分均采用弹性材料, 利用弹性材料的收縮来保持其密封性。 Conventional catheter sheath or sleeve puncture needle is provided, some of the membrane seal structure, which are membranous elastic material part by contraction of the elastic material to maintain sealability. 如专利US005409464于1995-3-25授权的带屏蔽膜瓣的血管介入导管鞘管,和专利MXPA02011809于2004-05-17 公布的带瓣膜的穿剌套管针系统,这些膜性密封装置的缺点是当插入的器械粗细差别很大时不能适应或密封效果没有保证。 Patent US005409464 interventional catheter sheath, and published patent MXPA02011809 on 2004-05-17 valved vasoactive 1995-3-25 authorized shielded trocar puncture the membrane flap system, disadvantage of these membrane sealing device or when a large sealing effect can not adapt to the thickness difference between the insertion instrument is not guaranteed. 发明内容 SUMMARY

本发明的目的旨在提供一种在没有物体穿过和穿过粗细差别很大的不同物体时都能保证对流体的密封性的膜性密封装置。 Object of the present invention is to provide an object passes through, and in the absence of large thickness differences through different objects can guarantee sealing means sealing film fluid.

具体技术方案,参见附图1、 2、 3、 5、 7、 9。 In particular aspect, referring to FIG. 1, 2, 3, 5, 7, 9. 该装置包括管状壳体1 和至少一组膜瓣2,所述的膜瓣每组共有两片,材质为低弹性、具有足够强度的柔软薄膜。 The apparatus 1 comprises a tubular housing 2 at least one set of petals, each petal of the total of two, made of low elasticity, the film having sufficient strength and flexibility. 每片膜瓣具有一个游离缘22和一个结合缘21,游离缘和结合缘汇合处为两个瓣尖23。 Each petal sheet having a free edge 22 and a binding edge 21, the free edge and the bound edge of the confluence of two valve cusps 23. 所述的结合缘与壳体紧密结合,游离缘可以自由摆动,两片膜瓣的瓣尖在壳体处结合,每片膜瓣和壳体形成一个袋状结构。 The edge binding closely with the housing, the free edge can swing freely, two petal cusp incorporated in the housing, the housing and each piece of petal form a bag-like structure. 两片膜瓣分别各自向对侧摆动时游离缘可以达到或超过壳体通过两膜瓣瓣 When two petals each respective free edge of the opposite side can be swung to reach or exceed the film housing by two prosthetic

尖结合点的纵切平面,即图7中通过虚线M1并与纸面垂直的平面,立体图见附图2。 Binding sharp longitudinal plane of the planar point, i.e., in FIG. 7 by the dashed M1 and perpendicular to the paper, see FIG. 2 perspective view of FIG. 所述的低弹性材料是指伸縮性很低或没有伸縮性的材料,可以采用现在用于制造大动脉覆膜支架的聚四氟乙烯薄膜。 Said elastomeric material is a low-stretchable material of little or no stretchability, now for producing a PTFE film aortic stent-graft may be employed. 所述的管状壳体是指满足具体需要的各种形状截面的和粗细可能有变化的管状体。 Said tubular housing means of various cross-sectional shapes to meet specific needs and may vary in thickness of the tubular body. 本发明利用流体本身的压力作动力,使得密封装置的两片膜瓣相互紧贴,防止流体泄漏,参见附图3、5。 The present invention utilizes fluid pressure for power itself, so that the sealing means of two petal against one another to prevent fluid leakage, see figures 3,5. 低弹性材料可以在有压力的条件下保持膜瓣的预定形状和张力。 Low-elasticity material may be maintained in a predetermined shape and tension of the film flap under stressful conditions. 在有物体穿过膜瓣之间的潜在间隙时,膜瓣紧贴固体物体表面,同样能够防止流体泄漏,参见附图l、 9。 When an object passes through the potential gap between the petal, the petal against a solid object surface, the same can prevent leakage of fluid, see Figure l, 9. 由于膜瓣本身质地薄软,密封流体的动力来自流体本身,因此该装置可以很好地适应通过密封装置不同粗细物体,如附图1中的31和附图9中的32,甚至不规则表面的物体。 Since the petal itself thin soft texture, dynamic sealing fluid from the fluid itself, so that the apparatus may be well adapted to the thickness of the sealing means different objects 32, such as 9 in Figures 1 31 and the accompanying drawings, or even an irregular surface It objects.

参见附图1、 4、 6。 Referring to figures 1, 4, 6. 作为对上述膜性密封装置的优化,可以设置为所述的膜瓣展开时呈类新月状,所述的管状壳体优选为圆管,所述的结合缘与壳体的结合线呈椭圆弧状,两片膜瓣分别向各自一侧管壳摆动时游离缘靠近壳体而与壳体保持一定间隙。 Optimally the film of the sealing device, the class may be provided as a crescent-shaped when the petal deployment, the tubular housing is preferably a round tube, said binding line elliptical edge of the housing arc, close to the free edge of the housing while maintaining a gap with the valve housing when the two films are swung to the side of each envelope. 膜瓣展开时呈类新月状和结合缘与管壳结合线呈椭圆弧状,这两个技术特征是为了保证膜瓣在密封状态借助壳体的牵引力保持更好的状态。 When deployed as a petal-shaped and crescent-based binding edge and the envelope is elliptical arc joining line, these two technical features is to ensure better condition petal holding means traction housing in a sealed state. 两片膜瓣分别向各自一侧管壳摆动时游离缘靠近壳体而与壳体保持一定间隙,是为了避免特殊情况下因膜瓣处于紧贴壳体的状态不能在流体作用下张开,从而失去密封作用。 When two petals are swung to their respective free side edge of the envelope against the housing while maintaining a gap with the housing, it is a special case to avoid not open under the action of a fluid in a state of close contact due to the petals of the housing, thus losing the sealing effect.

参见附图8、 10,作为对上述膜性密封装置的进一步优化,上述壳体在膜瓣处内径增粗,即11部分。 Referring to figures 8, 10, a further optimization of the above-described film sealing means, said valve housing at the inner diameter of the thicker film, i.e., portion 11. 两片膜瓣分别各自向对侧摆动时其游离缘超过壳体通过两膜瓣瓣尖结合点的纵切平面,即图8中通过虚线M2并与纸面垂直的平面,达到或略超过对面相当于壳体内径未增粗部分12的内面延伸处,即图8中虚线N绕虚线M2旋转形成的曲面。 Two are each petal by more than two membrane bound prosthetic sharp point to its free longitudinal edge plane of the housing contralateral swing, i.e. in the plane of FIG. 8 by dashed lines M2 and perpendicular to the paper, at or slightly more than the opposite corresponds to the inner diameter of the housing inner surface extending at a non-thickening portion 12, i.e., a dotted line N in FIG. 8 about the rotation surface formed by the dashed line M2. 以上技术特征是为了应付通过的物体不在壳体管腔中央位置而是管腔周边靠近壳体的位置,在这种情况下,如果一侧膜瓣被物体挤压而另一侧的膜瓣不能到达该边缘位置,就可能发生密封失败的情况。 Characterized in that in order to meet the above technical object is not in the center position of the housing lumen lumen but close to the periphery of the housing through, in this case, if the film side flap is pressed and the other side of the object can not petal reaches the edge position, the sealing failure may occur.

还可以在一个壳体内顺序设置两套或两套以上的膜瓣,这样可以增加密封的可靠性,并可能降低每组膜瓣所承受的压力。 Sequence may also be provided two or more sets of petals in a housing, which can increase the reliability of the seal, and each group may reduce the pressure on the membrane flap.

上述装置可以具体应用在在腔镜手术用的穿刺套针管上,或应用在血管介入手术用导管鞘管上。 The above-described apparatus may be applied in particular in the puncture endoscopic surgical trocar tube or surgical applications in interventional vascular catheter sheath. 下面结合具体应用实施例对本发明作进一步的说明。 Application Specific embodiments of the present invention in conjunction with the following be further described.

附图说明 BRIEF DESCRIPTION

图h膜性密封装置基本结构立体示意图,切去了壳体的上半部分,膜瓣闭合,膜瓣间有较细的物体通过。 Perspective schematic view of the basic structure of FIG. H film sealing means, the upper cut portion of the housing half, the film flap is closed, there is a slender object through inter petal. - -

图2:膜性密封装置基本结构立体示意图,切去了壳体的上半部分,只画了一片膜瓣,向对侧摆动并充分展开。 Figure 2: The basic structure of the membrane seal perspective view, cut away the upper half of the housing, only drew a petal, swung to the opposite side and fully expand.

图3:膜性密封装置基本结构立体示意图,切去了壳体的上半部分,膜瓣闭合,膜瓣间无物体通过。 Figure 3: The basic structure of the film sealing means schematic perspective view, cut away the upper half of the housing, the membrane valve is closed, no valve between the object through the film.

图4:膜性密封装置基本结构立体示意图,切去了壳体的上半部分,膜瓣充分展开,膜瓣游离缘与壳体间有间隙。 Figure 4: The basic structure of the film sealing means schematic perspective view, cut away the upper half of the housing, the membrane valve is fully deployed petal gap between the free edge of the housing.

图5:图3的顶视图 FIG 5: a top view of FIG. 3

图6:图4的顶视图 Figure 6: a top view of FIG. 4

图7:图2的顶视图 7: a top view of FIG. 2

图8:膜性密封装置顶视图,只画了一片膜瓣,向对侧摆动并充分展开, 膜瓣处壳体增粗。 Figure 8: a top view of a membrane seal, only drew a petal, swung to the opposite side and is fully deployed petal thickening the housing.

图9:膜性密封装置基本结构立体示意图,切去了壳体的上半部分,膜瓣闭合,膜瓣间有较粗的物体通过。 Figure 9: The basic structure of the film sealing means schematic perspective view, cut away the upper half portion of the housing is closed petal, through inter-object has coarser petal.

图10:膜性密封装置基本结构立体示意图,切去了壳体的上半部分,膜瓣闭合,膜瓣间无物体通过,膜瓣处壳体增粗。 Figure 10: The basic structure of the membrane seal perspective view, cut away the upper half of the housing, the membrane valve is closed, no object between the petal by petal thickening the housing. 图ll:实施例,带膜性密封装置的腔镜手术用的穿刺套管针系统结构立体示意图,切去了套针管的上半部分。 FIG. Ll: Example puncture trocar laparoscopic surgery with a system configuration of a film sealing device with a schematic perspective view, cut away the upper half of the sleeve of the needle cannula.

图12:实施例,带膜性密封装置的血管介入导管鞘管结构立体示意图, 切去了鞘管的上半部分,膜瓣闭合,膜瓣间有较细的物体通过。 Figure 12: an embodiment, the catheter sheath structure with a schematic perspective view of the vascular membrane of the seal means intervention, the half cut portion of the sheath, the film flap is closed, there is a slender object through inter petal.

图13:实施例,带膜性密封装置的血管介入导管鞘管结构立体示意图, 具有两组膜瓣。 Figure 13: an embodiment, the catheter sheath structure with perspective schematic view of the vascular intervention film sealing means, has two sets of petals.

图14:实施例,带膜性密封装置的血管介入导管鞘管结构立体示意图, Figure 14: an embodiment, the catheter sheath structure with a schematic perspective view of the sealing membrane of vascular intervention apparatus,

具有可弯曲的软管,可更换不问口径的插入套管。 A hose having a flexible, replaceable insert sleeve diameter not ask.

图15:实施例,口径较细的插入套管立体示意图,切去了上半部分。 Figure 15: Example smaller diameter insert sleeve perspective view, cut away the upper part. 图16:实施例,带膜性密封装置的血管介入导管鞘管结构立体示意图, Figure 16: an embodiment, the catheter sheath structure with a schematic perspective view of the sealing membrane of vascular intervention apparatus,

带有液体补充通道、血液转流通道和血液回收通道,所有管状结构切去了上 With the liquid supply passage, the blood flow path and the blood transfer channel recovery, all cut on the tubular structure

半部分。 Half.

图17:实施例,分体的血液回收通道,切去了上半部分。 Figure 17: Example of the blood collecting passage separately, the upper half of the cut. 具体实施 Detailed Description

实施例1 ,腔镜手术穿剌用的套针管 Example 1, a trocar puncture tube used in laparoscopic surgery embodiment

参见附图ll。 Referring to the drawings ll. 该装置包括插入端14和尾端15,在插入端和尾端之间设置膜性密封装置。 The apparatus includes an insertion end 14 and trailing end 15, sealing means disposed between the membrane insertion and trailing ends. 膜性密封装包括管壳13和一组膜瓣24,所述的管壳在膜瓣处增粗。 Sealing means comprises a membrane envelope 13 and a plurality of petals 24, the envelope flap at a thicker film. 与套针管配套的针芯33可以从两片膜瓣之间穿过并与套针管尾端锁紧。 And trocar tube supporting needle core 33 may pass between the two films and the locking flap and the trailing end of the trocar tube. 上述膜性密封装置可密封体腔内用于扩张手术视野的气体并且能够适应不同粗细的手术器械自由进出套针管,与现有的套管针系统相比,可以在改善密封效果的同时降低其制造成本。 The above-described film sealing means may seal the surgical field within a body lumen for expanding gas and can accommodate different thicknesses of the surgical instrument privileges trocar tube, compared with the conventional trocar systems, can reduce the manufacturing while improving the sealing effect cost. 另外,值得强调的是,因为膜瓣的柔软性,该密封装置在非圆柱形截面的工具通过时也能保持密封性,这是以往的弹性材料瓣膜结构的密封装置所不具备的。 Further, it is worth to emphasize that, because of the flexibility of the film flap, the sealing device when the tool is non-cylindrical cross-section can be maintained by sealing a sealing means which is a conventional valve structure of the elastic material does not have. 所述的腔镜,包括腹腔镜、 胸腔镜、关节镜等多种手术用的硬管内窥镜。 The endoscopic, laparoscopic include rigid endoscopes, thoracoscopic, arthroscopic, and other procedures used. 一般来说,这类应用,设置一组膜瓣,密封性己经足够了。 In general, such applications, provided with a set of petals, has sufficient sealability.

实施例2,血管介入导管鞘管参见附图12、 13。 Example 2, vascular interventional catheter sheath 12 Referring to the drawings, 13. 导管鞘管包括连接部5、密封部4和开放部6三部分, 依次相连通,所述的膜性密封装置设置在密封部,如图12所示。 The catheter comprising a sheath portion 6 three connecting portion 5, the sealing portion 4 and an open portion, successively communicating, said membrane sealing means is provided in the sealing portion, as shown in Fig. 考虑到血管介入对密封效果和密封可靠性的严格要求,优选设置至少两套膜瓣,如图13所示。 Considering the reliability of vascular intervention sealing effect and the stringent requirements of sealing, preferably at least two petals, as shown in Fig. 该导管鞘管在使用时用可以注入tf[L管的医用液体从开放部注入鞘管腔,并排出其中的气体,将连接部5插入作为介入通道的血管并作必要的捆扎和固定,这样就建立了血管介入的通道。 The catheter sheath when it is used can be injected TF [a medical liquid L from the open lumen of the sheath tube injection unit, and wherein the exhaust gases, as the connecting portion 5 is inserted into the vascular access channel and make the necessary bundling and fixing, so on the establishment of vascular intervention channels. 该装置可以适应从导丝到26F支架输送器等不同粗细的血管介入丁具自由进出血管,可以免去在交换介入工具时钳夹、压迫及释放血管操作,并且不必担心因过多器械交换而造成失血过多或介入通道血管的严重损伤。 The apparatus may be adapted to vascular interventional butoxy having free access to 26F from the guidewire stent delivery vessels of different thicknesses and the like, can be removed when exchanging jaw interventional tools, compression and release of vascular operations, and need not worry about excessive exchange device resulting in excessive bleeding or interventional vascular channels severe damage.

实施例3,带液体补充通道的血管介入导管鞘管 Example 3, with the liquid supply passage of the vascular interventional catheter sheath

参见附图16。 See Figure 16. 在实施例2所述的导管鞘管的基础上,在密封部管壳的两组膜瓣之间位置设置一个液体补充通道7,便于在与手术通道血管连接之前向管腔内注入液体,排除其中的空气并建立密封状态。 On the basis of the catheter sheath according to Example 2 of the embodiment, the seal portion between the two film envelope flap position is provided a liquid supply passage 7, to facilitate the liquid is injected into the lumen prior to surgery passage connected to the vessel, excluding wherein the air and create a sealed state. 如果在所述的液体补充通道上连接一个加压注射装置,让压力维持在低于动脉收縮压而略高于动脉的舒张压的状态下,并控制液体的流量,在更换手术器械时从第一组膜瓣泄漏的少量血液中的大部分会重新流冋连接部,因此可以使得手术中因交换器械而引起的失血保持在极小的容量。 If the connection is a pressurized injection means so that a pressure is maintained in a state slightly below the arterial systolic pressure and diastolic pressure, and controls the flow of liquid in said liquid supply passage, and when replacing the surgical instrument from set a small amount of blood leakage petal most re Jiong flow connection portion, it is possible that blood loss due to switching operation caused by the instrument is maintained at the minimum capacity. 即使从第二组膜瓣泄漏的少量液体也是稀释过的血液,所含的血液成分很少。 Even if the leakage from the second set of petals small amount of liquid is diluted blood, blood components contained few.

实施例4,带液体回流收集通道的血管介入导管鞘管 Example 4, Vascular collecting channel with liquid reflux interventional catheter sheath

参见附图16、 17。 Referring to figures 16, 17. 如果在膜性密封装置的开放部设置一个液体回流收集通道9,并在液体回流收集通道上连接一个洁净的液体回收容器,还可将泄漏的这部分稀释过的血液重新回输到体内。 If a liquid return passage 9 in the open collection of the film of the sealing device, and a clean liquid connected to the liquid collection channels reflux collection container, which may be leaked back part of the diluted blood reinfusion into the body. 所述的液体冋流收集通道也可以作为独立的部件91,应用时与导管鞘管的开放部连接。 Jiong said liquid flow passage may be collected as an independent member 91, is connected to the open portion of the catheter sheath when applied.

实施例5,带血液转流通道的血管介入导管鞘管 Example 5, with the blood flow channel transfer vascular access catheter sheath

参见附图16。 See Figure 16. 在较为复杂的介入手术中,可能需要数小时的手术时间, 如果因通道血管连接了导管鞘管而中断了对下游动脉的供血,可能会造成所属供血区域的组织或器官的缺血性损伤。 In a more complex interventional procedures, hours of operation time may be required, because if the channel is connected to the catheter sheath vascular interrupted blood supply to the downstream artery, may cause tissue region belongs blood or ischemic organ damage. 因此,在导管鞘管密封部近连接咅U Thus, the catheter sheath near the sealing portion connected Pou U

处设置血液转流通道8,可连接与下游动脉连通的血液转流管,从而在手术过程中维持下游动脉的血供。 Blood flow channel is provided at the rotation 8, may be connected in communication with the downstream artery blood bypass pipe, thereby maintaining the downstream artery during surgery, blood supply.

实施例6,连接部带软管的血管介入导管鞘管 Example 6, with the hose connection portion vascular interventional catheter sheath

参见附图14、 16。 Referring to figures 14, 16. 为了便于更换介入手术器械操作并避免损伤与导管鞘管连接的通道血管,在导管鞘管的连接部近密封部处设置一段软管52,使用时将连接部的硬管部分511与身体固定就可以做到既便于操作又不会因牵拉损伤通道血管了。 To facilitate the replacement operation of the surgical instrument interventional vascular injury and avoiding passage connected to the catheter sheath, a length of hose 52 is provided near the seal portion at the connecting portion of the catheter sheath, the use of the rigid pipe portion connected to the body portion 511 and is fixed on the It can be both easy to operate and will not stretch injury of vascular channels.

实施例7,连接部带口径转换套管的血管介入导管鞘管 Example 7, the blood vessel diameter with the connecting portion of the interventional catheter cannula conversion sheath

参见图14、 15。 Referring to FIG. 14, 15. 由于膜性密封装置本身可以很好地适应不同粗细的物体通过,为了降低生产成本,导管鞘管除连接部以外的部分不必设置过多的规格。 Since the film of the sealing means itself can be well adapted to different thicknesses of the object by, in order to reduce production costs, the catheter sheath portion other than the connection portion without providing too many specifications. 为了适应不同口径的通道血管,只需在连接部插入血管一端的硬管或硬管加软管部分设置较多的规格口径转换套管511、 512,并以统一的口径与连接部软管或密封部连接即可。 To accommodate different diameters of vascular channels, simply inserted into the vessel at one end of the connecting tube portion of the tube or hose is provided add more conversion specifications diameter cannula 511, 512, and a uniform diameter of the hose or the connecting portion a sealing portion connected to.

如实施例2-7所述的血管介入导管鞘管相应技术特征可以在集中在一个实施例中,也可以分别只选用其中的几个技术特征组合,从而形成其他的不同技术方案,其实施条件对于血管介入医疗器械行业的技术人员而言是显而易见的,不需要创造性劳动,这里不再赘述。 The technical features of the respective blood vessel catheter sheath according to embodiment 2-7 may be involved in one embodiment, may be respectively chosen only a few combinations of the technical features therein, thereby forming various other aspect, embodiment thereof Condition for vascular interventional medical device industry technical staff is obvious, no creative work, not repeat them here.

Claims (13)

1.一种膜性密封装置,包括管状壳体和至少一组膜瓣,其特征在于所述的膜瓣每组共有两片,材质为低弹性的柔软薄膜,每片膜瓣具有一个游离缘和一个结合缘,游离缘和结合缘汇合处为两个瓣尖,所述的结合缘与壳体紧密结合,游离缘可以自由摆动,两片膜瓣的瓣尖分别在壳体处结合,每片膜瓣和壳体形成一个袋状结构,两片膜瓣分别各自向对侧摆动时游离缘可以达到或超过壳体通过两膜瓣瓣尖结合点的纵切平面。 A membrane seal means includes a tubular housing and at least a set of petals, wherein each said petal total of two, made of a low elastic flexible membrane, each membrane sheet having a free edge of the flap and a binding edge, the free edge and the bound edge of the confluence of two cusps, said housing closely bound edge, the free edge can swing freely, two film flaps are incorporated in the cusp of the housing, each valve housing and membrane sheet form a bag-like structure, may reach or exceed the free edge of housing by a two-membrane bound prosthetic longitudinal plane of the tip of the point when the two films are each flap are swung to the opposite side.
2. 权利要求1所述的膜性密封装置,其特征在于所述的管状壳体为圆管, 所述的膜瓣展开时呈类新月状,所述的结合缘与管壳的结合线呈椭圆弧,两片膜瓣分别向各自一侧管壳摆动时游离缘靠近壳体而与壳体保持一定间隙。 The film of claim 1, the sealing means, wherein said tubular housing is a tube, were based upon the crescent-shaped petal deployment, the binding edge of the envelope of the bonding wires elliptical arcs, two near the free edge of the petal housing while maintaining a gap with the housing, respectively, when swung to the respective side of the tube housing.
3. 权利要求2所述的膜性密封装置,其特征在于所述的壳体在膜辧处内径增粗,两片膜瓣分别各自向对侧摆动时游离缘超过壳体通过两膜瓣瓣尖结合点的纵切平面,达到或略超过对面相当于壳体内径未增粗部分的内面延伸处。 Membrane seal device according to claim 2, wherein said housing inner diameter at the thicker film vital fixture, when the two films are each flap swings to the opposite side of the free edge of the housing by more than two films prosthetic longitudinal plane of the tip binding site, to achieve equivalent or slightly more than the opposite inner surface of the inner diameter of the housing portion not extending thickening.
4. 权利要求1或2或3所述的膜性密封装置,其特征在于设置两组或两组以上膜瓣,各组膜瓣顺序排列在壳体内。 Membrane seal device 1 or claim 2 or claim 3, characterized in that the set or sets of two or more petals, each petal group sequentially arranged within the housing.
5. —种用于腔镜手术穿剌用的套针管,包括插入端和尾端,其特征在于在插入端和尾端之间设置权利要求1或2或3所述的膜性密封装置。 5. - a kind of puncture trocar tube with laparoscopic surgery, including insertion and trailing ends, characterized in that between the insertion and trailing ends of the sealing membrane device of claim 1 or 2 or claim 3 is provided.
6. —种用于血管介入手术的导管鞘管,包括连接部、密封部和开放部, 其特征在于其密封部设置了权利要求1或2或3所述的膜性密封装置。 6. - sheath catheters for vascular interventional procedures, comprising a connecting portion, a sealing portion and an open portion, characterized in that the sealing portion is provided as claimed in claim membrane or sealing device 123 according to.
7. 权利要求6所述的导管鞘管,其特征在于其密封部设置的膜性密封装置内设置有两组或两组以上膜瓣,各组膜瓣顺序排列在管壳内。 Catheter sheath according to claim 6, characterized in that the film-sealing means provided thereon a sealing portion is provided with two or more sets of petals, each petal group sequentially arranged in a tubular housing.
8. 权利要求7所述的导管鞘管,其特征在于在密封部最靠近开放部的两组膜瓣之间的位置设置液体补充通道。 Catheter sheath according to claim 7, characterized in that the position of the sealing flap between the two film portions disposed closest to the open portion of the liquid supply passage.
9. 权利要求6所述的导管鞘管,其特征在于在其开放部设置液体回流收集通道。 9. The catheter sheath according to claim 6, characterized in that the liquid reflux is provided at its open collecting channel portion.
10. 权利要求9所述的导管鞘管,其特征在于在所述的液体回流收集通道为能够与导管鞘管主体部分分离的独立部件。 10. The catheter sheath according to claim 9, characterized in that the liquid reflux is collected in a separate channel member can be separated from the catheter body sheath portion.
11. 权利要求6所述的导管鞘管,其特征在于在其连接部插入血管一端设置口径转换套管。 11. The catheter sheath according to claim 6, wherein the connecting portion is provided at one end into the blood vessel caliber conversion sleeve.
12. 权利要求6所述的导管鞘管,其特征在于在其连接部近密封部处设置软管。 12. The catheter sheath according to claim 6, characterized in that the sealing portion thereof near the connecting portion is provided at the hose.
13. 权利要求6所述的导管鞘管,其特征在于在靠近连接部与第一组膜瓣之间设置血液转流通道。 13. The catheter sheath according to claim 6, characterized in that the transfer of blood flow channel is provided close to the connection portion between the first set of petals.
CN 200710038109 2007-03-15 2007-03-15 Membranous sealing device and trocar and catheter sheath tube using the same CN100551461C (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5409464A (en) 1994-05-13 1995-04-25 Cordis Corporation Intravascular catheter having barrier valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5409464A (en) 1994-05-13 1995-04-25 Cordis Corporation Intravascular catheter having barrier valve

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