CN104095666B - Urinary tract stones cavity taking means - Google Patents

Urinary tract stones cavity taking means Download PDF

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Publication number
CN104095666B
CN104095666B CN201410334420.3A CN201410334420A CN104095666B CN 104095666 B CN104095666 B CN 104095666B CN 201410334420 A CN201410334420 A CN 201410334420A CN 104095666 B CN104095666 B CN 104095666B
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basket
stone
wire
pocket
sleeve
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CN201410334420.3A
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Chinese (zh)
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CN104095666A (en
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孙颖浩
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中国人民解放军第二军医大学
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/221Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions

Abstract

本发明涉及一种泌尿系统结石腔内套取装置,其设有导管和导丝,所述导丝的远端设有网篮,所述网篮上固定有套石兜,所述套石兜被预塑成长条形兜状且近端的一面是开口的,套石兜上还设有微孔。 The present invention relates to a urinary stone cavity taking apparatus provided with catheters and guidewires, the distal end of the guide wire basket is provided, the sleeve is fixed to the basket stone pocket, the sleeve pocket stone It is pre-molded into strips and the proximal end side of the pocket-shaped opening is also provided on the porous stone jacket pocket. 本发明的泌尿系统结石腔内套取装置能够一次性套取大量碎石、血块和脓块,不受输尿管管腔内径或操作通道内径的限制,取石过程不会遗漏碎石,能有效避免碎石被水流灌注回肾脏,同时还能避免碎石对输尿管壁造成损伤,安全可靠。 Urinary calculi present invention means capable of taking a disposable chamber taking large gravel, pus and blood clots block from the ureter lumen diameter or the inner diameter of the channel operational limitations, not missing stone lithotripsy procedure, can effectively prevent broken kidney stone is poured back into the water, while avoiding damage to the ureteral stone walls, safe and reliable.

Description

泌尿系统结石腔内套取装置 Urinary tract stones cavity taking means

技术领域 FIELD

[0001]本发明涉及医疗器械领域,具体地说,涉及一种泌尿系统结石腔内套取装置。 [0001] The present invention relates to the field of medical devices, and more particularly, to a urinary stones cavity taking device.

背景技术 Background technique

[0002]肾结石是泌尿外科最常见的疾病之一,微创治疗技术已取代传统性开放手术成为肾结石最重要的治疗手段。 [0002] Kidney stones are one of the most common urological diseases, minimally invasive treatment technology has replaced traditional open surgery has become the most important treatment for kidney stones. 微创治疗根本目的是完全清除结石。 The fundamental purpose of minimally invasive treatment is complete removal of stones. 输尿管软镜通过人体自然腔道进入肾脏,通过钬激光粉碎结石,效果确切,是肾脏结石主要的微创治疗手段之一。 Flexible ureteroscope into the human body through natural orifices kidney stones crushed by holmium laser, the exact effect is one of the minimally invasive treatment of kidney stones major. 为了提高结石的清除率,钬激光粉碎结石后,常采用套石篮套取较大的碎石。 In order to improve clearance of stones, crushed stones after holmium laser, often with large stone basket taking gravel.

[0003]目前国内外应用的套石篮多为简单套篮结构。 [0003] at home and abroad applied stone basket more than a simple set of basket structure. 如中国专利ZL20122032508.7(公告日2013年1月16日;公告号:CN202665632U)公开的一种套石篮,用于泌尿科内窥镜配套对输尿管和肾结石取出,套石篮芯头部是几根具有弹性钢丝绕成,拉紧开关锁套石篮芯缩进外管内,外管直径为0.5-3mm。 Chinese Patent ZL20122032508.7 (announcement date of January 16, 2013; Notice No.: CN202665632U) discloses a stone basket, urology endoscopes for supporting the ureter and kidney stones removed, the core head stone basket is an elastic wire wound into a few, tension switch lock core stone basket retracted within the outer tube, the outer tube having a diameter of 0.5-3mm. 但是这款三角套石篮抓取效率不高,只能抓取一定直径大小的碎石,碎石过大无法通过操作通道,碎石过小容易从钢丝缝隙遗漏,一次性抓取过多,收紧内芯时网篮呈球形,其直径常超过操作通道或输尿管内径而易造成输尿管损伤或无法取出。 But this triangular stone basket catching efficiency is not high, only to crawl certain diameter size of gravel, crushed stone is too large to operate through the channel, gravel too small to be easily missed from wire gaps, disposable grab too much, tighten the basket spherical core, often more than the diameter of the inner diameter of the working channel or ureter apparent cause ureteral injury or can not be removed. 另如中国专利ZL200620040173.7(公告日2007年3月7日;公告号:CN2875338Y)公开的一种输尿管网状套石篮,采用无毒、纤维尼龙丝制成,将结石套住后再进行碎石。 Others, such as China patent ZL200620040173.7 (announcement date of March 7, 2007; Notice No.: CN2875338Y) discloses a ureteral stone basket mesh, non-toxic, made of nylon fiber, and then carried the stone trap gravel. 该套石篮并不具备套取碎石的功能,只能被动套住结石便于操作,而没有主动抓取碎石的功能。 The stone basket does not have the function of taking gravel, stone trap easy to operate passively, without active gravel gripping function.

[0004]总结得出,目前套石篮取石仍然存在以下不足:1)不管是三角套石篮还是网状套石篮,都采用了向心性收聚的设计,套取石块后呈球形,而非椭球形,套石的数量受限于输尿管管腔内径或操作通道的内径,需要反复进入输尿管道取石,效率低下;2)套石篮收取后钢丝间存在缝隙,尤其是网状套石篮收紧内芯后网孔易遗漏碎石,套石篮本身也不能阻挡结石,小石块和碎石在逆向水流的灌注下容易被冲回肾脏;3)结石的棱角会暴露于套石篮的网孔之外,容易导致套石篮无法通过操作通道,且极易划伤输尿管壁,引起手术并发症;4)对于肾脏内积聚的血块或者脓块,软镜下应用套石篮抓取困难,效率低下。 [0004] summarizes the results, the current stone basket stone still has the following disadvantages: 1) Whether the triangular stone basket stone basket or mesh, have adopted the concentric gather design, after taking spherical stones, rather than ellipsoid, limited to the number of sets of stone or the inner diameter of the ureter lumen diameter working channel, the channel need to repeatedly enter the ureteral stone, inefficient; after 2 there is a gap) between the charged wire stone basket, in particular a mesh sleeve stone after tightening the inner core mesh basket easily missed gravel, stone basket itself can stop stones, gravel and small stones are easily reversed in a reverse flow renal perfusion; 3) exposed to stones corner stone sets mesh baskets outside, easily lead to stone basket can not pass through the working channel, ureter and easily scratched, causing complications; 4) for the accumulation of pus or blood clot blocks the kidney, soft stone basket grasping endoscopic applications take difficult and inefficient.

[0005] 综上所述,亟需一种取石效率高、不会遗漏碎石、可同时套取血块和脓块、安全可靠的泌尿系统结石腔内套取装置,但是目前关于该类装置还未见报道。 [0005] In summary, a need for an high efficiency stone, gravel not missing, pus and blood clots can block taking simultaneously, safe and reliable means taking cavity urinary tract stones, but now also on such devices It has not been reported.

发明内容 SUMMARY

[0006]本发明的目的是针对现有技术中的不足,提供一种泌尿系统结石腔内套取装置。 [0006] The object of the present invention is directed to the prior art is insufficient, there is provided a urinary stones cavity taking device.

[0007]为实现上述目的,本发明采取的技术方案是: [0007] To achieve the above object, the present invention takes the following technical solution:

[0008] —种泌尿系统结石腔内套取装置,设有导管和导丝,所述导丝的远端设有网篮,所述网篮上固定有套石兜,所述套石兜被预塑成兜状且近端的一面是开口的,所述套石兜上还设有微孔。 [0008] - seed cavity urolithiasis taking apparatus provided with catheters and guidewires, the distal end of the guide wire basket is provided, the sleeve is fixed to the basket stone pocket, the sleeve pocket is stone pre-molded pocket-shaped opening and the proximal end side is also provided on the porous stone jacket pocket.

[0009] 所述的套石兜呈长条形兜状,且远端表面呈曲面状。 [0009] The elongated strip rock cage sleeve pocket shape, and the distal end surface of the curved surface shape.

[0010]所述的套石9¾由塑料或无纺布制成。 Stone cover [0010] according 9¾ made of plastic or nonwoven fabric.

[0011]所述的网篮由使用状态下呈曲线状的网篮丝组成,所述网篮丝的远端向着导管的中心轴方向收拢并与套石兜固定。 [0011] The curved shape of the basket from the basket filaments use state, the distal end of the catheter towards the wire basket central axis direction and gather pocket sleeve fixed stone.

[0012] 所述网篮丝远端双分叉为第一网篮丝和第二网篮丝,所述第一网篮丝和第二网篮丝与套石兜固定。 [0012] The basket wire distal end bifurcated into a first and a second wire basket wire basket, the basket wire and the first wire and the second wire basket stone pocket fixed sleeve.

[0013]所述的网篮由若干个椭圆形的网篮丝组成,各个网篮丝按照等边几何图形排布,且各个网篮丝的近端交汇融合成一股固定于导丝的远端;使用状态下,各个网篮丝所形成的面呈曲面状,均向着导管的中心轴方向收拢。 [0013] the basket by a plurality of filaments oval basket, each basket wire as equilateral geometric arrangement, a proximal end and a distal end of each basket wire fused into an intersection fixed to the guidewire ; use state, a curved-section of each wire baskets formed, are folded toward the central axis of the catheter.

[0014]所述的网篮丝有三根或四根,各个网篮丝按照三角形或正方形排布。 [0014] The wire baskets have three or four, each basket wire according to a triangular or square arrangement.

[0015]所述套石兜的近端边缘环绕固定于所述网篮靠近远端的区段上。 [0015] The proximal edge of the sleeve surrounding rock cage secured to the distal end portion near the upper basket.

[0016] 所述的网篮呈椭环形,其在垂直于导丝的平面上的投影为圆环形。 [0016] The ellipsoidal annular baskets, projected on a plane perpendicular to the guide wire is circular.

[0017]所述的网篮丝由形状记忆材料制成。 [0017] The wire baskets made of a shape memory material.

[0018] 所述的微孔直径为50-150nm。 [0018] The pore diameter of 50-150nm.

[0019]本发明优点在于: [0019] The advantages of the present invention comprising:

[0020]本发明针对泌尿系统结石的阻挡与高效取出问题,设计了具有透水微孔套石兜结构的泌尿系统结石一次性取出器械: [0020] The present invention is directed to blocking problems with urinary tract stones removed efficiently designed permeable micropores having a jacket pocket structure urinary calculi stone disposable extraction instrument:

[0021] 1、设有长条形兜状且横截面尺寸与手术通道鞘内径相当的套石兜,可容纳大量碎石,即使网兜内装满结石,其外形亦不会改变,仍可从鞘内通过,大大提高了取石效率; [0021] 1, the pocket is provided with elongated shape and cross-sectional dimension of the inner diameter of the sheath operative channel corresponding sleeve pocket stone, gravel can accommodate a large number, even though the net bag filled with stones, will not change its shape, still from by intrathecal, greatly improving the efficiency of the stone;

[0022] 2、套石兜上不含有大型网孔,不存在缝隙,且其本身具有一定的塑形作用,因此能够有效避免套取碎石后碎石、血块和脓块遗漏,同时碎石的棱角不会暴露在外,进而不会摩擦损伤输尿管壁; [0022] 2, the sleeve does not contain a large stone pocket mesh, there is no gap, and which itself has a certain shaping effect, it is possible to avoid taking the gravel gravel, pus and blood clots missing blocks, while gravel It edges not exposed, and thus not rubbing damage ureter;

[0023] 3、网篮设计有多种形式,三线、四线型网篮可以适应不同体积、位置的结石的取出,而且还能更好的维持套石兜的形状;椭环形网篮能最大程度地减少对碎石的阻碍作用,有利于碎石顺利的进入到套石兜的内部; [0023] 3, forms basket design, three-wire, four-wire basket can adapt different volumes, the position of extraction of stones, but also to better maintain the shape of rock cage sleeve; greatest elliptical annular basket minimize impediment of gravel, it is conducive to the smooth gravel stone into the inside pocket of the jacket;

[0024] 4、网篮丝为记忆金属丝,套石兜为塑料或无纺布材质薄膜,均能收缩成很小体积,容纳在导管内,便于本发明结石取出器的置入,不会推动结石逆行回肾脏,也不易损伤输尿管壁。 [0024] 4, silk memory wire basket, stone jacket pocket or nonwoven material is a plastic film, it can shrink into a small volume, housed within the catheter to facilitate placement stone extractor of the present invention, not promote kidney stones retrograde back, but also easy to damage the ureter.

附图说明 BRIEF DESCRIPTION

[0025]附图1是本发明的泌尿系统结石腔内套取装置的结构示意图。 [0025] Figure 1 is a schematic structural diagram of urolithiasis cavity taking apparatus according to the present invention.

[0026]附图2是图1中A的放大图。 [0026] Figure 2 is an enlarged view of A in FIG. 1.

[0027]附图3是实施例2的网篮丝的结构示意图。 [0027] Figure 3 is a schematic structural diagram of embodiment 2 of the wire basket.

[0028]附图4是实施例3的网篮丝的结构示意图。 [0028] Figure 4 is a schematic view of the basket wire according to the third embodiment.

[0029]附图5是实施例4的网篮丝的结构示意图。 [0029] Figure 5 is a schematic structural diagram of Embodiment 4 of Example wire baskets.

具体实施方式 Detailed ways

[0030]下面结合附图对本发明提供的具体实施方式作详细说明。 [0030] DETAILED DESCRIPTION OF THE DRAWINGS Embodiment of the present invention provides detailed description.

[0031]附图中涉及的附图标记和组成部分如下所示: [0031] In the drawings reference numerals relate and components are as follows:

[0032] 1.导管 2.导丝 [0032] 2. the guide wire catheter 1

[0033] 3.网篮丝 31.第一网篮丝 [0033] 3. The first basket wire 31. Wire basket

[0034] 32.第二网篮丝4.套石兜 [0034] 4. The sleeve 32. The second wire basket stone pocket

[0035] 5.导管手柄 51.第一螺纹 [0035] 5. The catheter handle 51. The first thread

[0036] 6.导丝手柄 61.第二螺纹 [0036] 6. The guide wire handle 61. The second thread

[0037] 7.网篮 8.微孔 [0037] 7. The microporous basket 8.

[0038] 实施例1 [0038] Example 1

[0039]请参照图1,图1是本发明的泌尿系统结石腔内套取装置的结构示意图。 [0039] Referring to FIG. 1, FIG. 1 is a schematic structural diagram of urolithiasis cavity taking apparatus according to the present invention. 所述的泌尿系统结石腔内套取装置设有导管1、导丝2、网篮7和套石兜4。 Said cavity urinary tract stones taking apparatus provided with a catheter, guide wire 2, the baskets 7 and the sleeve 4 stone pocket. 所述的导管1为圆柱形中空管体,近端的外周设有导管手柄5,所述的导管手柄5近端的内壁设有第一螺纹51。 The catheter body 1 is a cylindrical hollow tube, an outer periphery of the proximal end of the catheter is provided with a handle 5, the inner wall 5 of the proximal end of the catheter handle is provided with a first screw thread 51. 所述的导丝2为一细长丝,贯穿于导管1的内部。 The guidewire 2 is a fine filaments throughout the interior of the catheter 1. 导丝2的近端设有导丝手柄6,所述的导丝手柄6远端的外部设有第二螺纹61。 The proximal end of the guidewire 2 is provided with a handle 6 guidewire, outside of the guide wire distal end of the handle 6 is provided with a second screw thread 61. 所述的第二螺纹61与所述的第一螺纹51相互匹配,旋紧后能将导丝2与导管1固定。 Said second screw thread 61 of the first thread 51 matched to each other, can the guidewire 2 and the catheter 1 is secured after tightening. 所述的导丝2的远端设有网篮7。 The distal end of the guidewire 2 is provided with a basket 7.

[0040] 请参照图2,图2是图1中A的放大图。 [0040] Referring to FIG. 2, FIG. 2 is an enlarged view of A in FIG. 1. 所述的网篮7包括三根网篮丝3。 The baskets 7 comprises three wire mesh basket 3. 每根网篮丝3的近端与导丝2(图中未示出)固定,远端区段双分叉为第一网篮丝31和第二网篮丝32。 Each wire basket proximal end of guidewire 3 2 (not shown) is fixed, the distal end portion bifurcated into a first basket 31 and the second wire 32 wire basket. 使用状态下,所述的网篮丝3呈曲线状,每根网篮丝3的远端均向着导管1的中心轴方向收拢。 A use state, the basket-shaped curved wire 3, the distal end of each of the basket wires 3 are toward the center axis direction of the catheter 1 is retracted. 所述的套石兜4被撑开成长条形的兜状,套石兜4远端的外表面呈曲面状,近端的一面是开口的,且近端的外壁与三根网篮丝3的第一网篮丝31和第二网篮丝32固定。 The sleeve-like rock cage pocket 4 is stretched as elongated, sleeve outer surface is curved stone pocket 4 distal end, a proximal end side is open, and the proximal end of the outer wall 3 of the three wire basket The first basket 31 and the second wire basket wire 32 is fixed. 所述的套石兜4上还设有微孔8。 The sleeve 4 also stone pocket 8 is provided with micropores.

[0041]需要说明的是: [0041] It should be noted that:

[0042]本发明的泌尿系统结石腔内套取装置在未使用状态下,也即出厂时,所述的网篮丝3和套石兜4均收纳于导管1远端的腔体内,网篮丝3在导管1腔体的限定下聚拢成一束,套石兜4也褶皱聚拢成一束。 [0042] The present invention urinary calculi cavity means taking the unused state, i.e. the factory, the wire basket stone pocket 4 and the sleeve 3 are housed within the cavity of the distal end of the catheter 1, basket 3 to gather a bundle of wires in the catheter 1 defining a cavity, the sleeve 4 also stone pocket pleats gathered into a bundle.

[0043] 所述的套石兜4优选使用塑料膜制成,具体可以是TPU、Pebax、FEP、ETFE、TPFE等材质,其也可以使用无纺布等材质,只要保证褶皱折叠后体积较小,能够收纳于较细的导管1内即可。 [0043] The sleeve 4 stone pocket plastic film is preferably used, particularly may be a TPU, Pebax, FEP, ETFE, TPFE other materials, which other materials may be used nonwoven fabric, as long as the volume of small wrinkles after folding can be accommodated in the catheter 1 can be smaller. 所述的套石兜4被预塑成长条形的兜状,近似于子弹的形状,该形状可容纳较多碎石,显著提高取石效率。 The sleeve-like rock cage pocket is pre-molded into strips of 4, similar to the shape of the bullet, the shape of which can accommodate more gravel, stone significantly improve efficiency. 套石兜4横断面最大的直径设计成与手术通道鞘内径相当,即使网兜内装满结石,其外形亦不会改变,仍可从鞘内通过。 4 sets stone pocket maximum cross-sectional diameter of the sheath is designed to channel the inner diameter surgical considerable, even if the net bag filled with stones, will not change its shape, still through the intrathecally. 由于套石兜4上并不含有大型网孔,不存在缝隙,且其本身具有一定的塑形作用,因此能够有效避免碎石、血块和脓块遗漏,同时碎石的棱角不会暴露在外,也就不会摩擦损伤输尿管壁。 Since the sleeve 4 does not contain the rock cage large cell, there is no gap, and which itself has a certain shaping effect can be effectively avoided gravel, pus and blood clots missing blocks, while the gravel is not exposed to the outside edges, there would be no friction damage ureter. 套石兜4上设有微孔8,所述微孔8直径优选为50-150nm,最优选lOOnm,可供水顺畅通过而碎石、血块和脓块均不能通过。 4 stone pocket sleeve 8 is provided with micropores, said micropores 8 diameter is preferably 50-150 nm, most preferably lOOnm, water can be smoothly through the gravel, pus and blood clots can not pass the block.

[0044]所述的网篮丝3为记忆材料制成,如记忆金属丝,具体如钛镍合金材质,从导管1腔体内释放后,其可自然展开恢复成曲线形状。 [0044] The wire baskets made of memory material 3, such as a memory metal wire, particularly titanium-nickel alloy material such as, from the cavity to release the catheter 1, which can be restored to expand naturally curved shape. 网篮丝3的作用是固定和维持套石兜4的形状,保证其近端边缘展开并尽量与输尿管壁贴合,不会在水流的冲击下变形,拖移结石时也不会变形。 Action basket wire 3 is fixed and the sleeve to maintain the shape of the stone pocket 4, to ensure that the proximal edge bonded to expand and try and ureter, not deformed not deformed under the impact of water, when the drag stones. 网篮丝3的数量不仅限于本实施例,也可以是三根、四根、五根、七根、八根等若干根,只要保证能有效支撑套石兜4且其疏密程度不会阻碍碎石进入即可。 Number of wire basket 3 is not limited to the present embodiment may be three, four, five, seven, eight, etc. Some root, as long as effective rock cage support sleeve 4 and which does not hinder the broken-density stone to enter. 所述的网篮丝3和套石兜4的固定方式也不仅限于本实施例,网篮丝3也可以固定于套石兜4的内壁上,网篮丝3的远端也可不设第一网篮丝31和第二网篮丝32的双分叉结构,只要保证能够与套石兜4有效固定即可,但双分叉的网篮丝3增加了与套石兜4的固定面积,固定效果更好。 The wire basket stone pocket 3 and the sleeve 4 are also in a fixed manner is not limited to the present embodiment, the basket wire 3 may be fixed to the sleeve 4 on the inner wall of the stone pocket, the distal end of the basket wire 3 may not be provided a first basket 31 and the second wire basket wire 32 of the bifurcated structure, as long pocket can be effectively secured to the sleeve 4 stone, but the bifurcated wire baskets 3 adds a fixed area 4 and sets the stone pocket, fixed better.

[0045]所述的导管1可将网篮丝3和套石兜4收纳于腔内,在置入本发明的泌尿系统结石腔内套取装置时,可很容易地绕开结石,不易造成结石移位,亦不会损伤输尿管壁。 [0045] The catheter may be a wire basket stone pocket 3 and the sleeve 4 accommodated within the cavity, when the cavity into urolithiasis taking apparatus of the present invention, can be easily bypassed stones, easy to cause stones shift, and will not damage the wall of the ureter. 所述的导丝2用于操控网篮丝3和套石兜4的收纳及释放。 The guidewire 2 and 3 for manipulating sets of wire basket stone pocket 4 accommodating and releasing. 所述的导管手柄5和导丝手柄6上设有彼此匹配的螺纹,当本发明的泌尿系统结石腔内套取装置达到目标位置后,可将导管1和导丝2固定住,从而保证网篮丝3和套石兜4不变形。 The catheter is provided with a handle 5 and a handle on the guide wire 6 threads match each other, when the system of the present invention urinary stones cavity taking means reaches the target location, the catheter 1 may be fixed and the guide wire 2, thus ensuring network wire basket stone pocket 3 and the sleeve 4 is not deformed.

[0046]本文中,所述的“近端”是指手术过程中距离术者较近的一端,所述的“远端”是指手术过程中距离术者较远的一端。 [0046] As used herein, the "proximal" refers to the end of the surgical process the surgeon closer distance, the "distal" refers to the end of the surgical process the surgeon farther distance.

[0047]本发明的泌尿系统结石腔内套取装置的使用方法如下:输尿管镜碎石术时,形成内窥镜工作通道,置入内窥镜;拆开本发明的泌尿系统结石腔内套取装置的出厂包装,手持导管手柄5和导丝手柄6将导管1的远端进入到输尿管,绕开结石并放在结石上方,向远端推动导丝手柄6,然后螺纹旋紧导丝手柄6和导管手柄5以固定导管1和导丝2,此时网篮丝3撑开恢复成曲线状,套石兜4随之也被撑开;进行碎石操作,待结石都破碎成2mm左右的碎肩时,一边缓慢退出本发明的泌尿系统结石腔内套取装置,一边通过内窥镜工作通道向输尿管持续注水,使得结石碎肩、血块、脓块冲入套石兜4内,而水则通过微孔8透出在套石兜4之夕卜;最终,结石碎肩、血块、脓块存于套石兜4中被取出。 [0047] Use urolithiasis cavity taking apparatus of the present invention is as follows: when ureteroscopy lithotripsy, forming a working channel of the endoscope, the endoscope inserted; open present invention sets urinary tract stones cavity take factory packaging apparatus, a handheld catheter handle 5 and the distal end of the guide wire handle 6 of the catheter 1 into the ureter, stones and bypasses on the top of the stones, pushing the guide wire distal to the handle 6, and then tighten the threaded guide wire handle 5 and 6 to secure the catheter handle and a catheter guide wire 2, the wire basket case 3 distraction to restore a curved shape, stone jacket pocket 4 will also be stretched; lithotripsy operation, to be stones are crushed into approximately 2mm when broken shoulder, urinary system was gradually exit the chamber taking apparatus according to the present invention, while continuously injecting water into the ureter through the endoscope working channel, such that the shoulder broken stones, blood clots, pus pocket stone block into the sleeve 4, and 8, revealed the water through the porous stone jacket pocket in the evening Bu 4; final, shoulder broken stones, blood clots, pus pocket stone block stored in the sleeve 4 is removed.

[0048]本发明的泌尿系统结石腔内套取装置能够一次性套取大量碎石、血块和脓块,不受输尿管管腔内径或操作通道内径的限制,取石构成不容易遗漏碎石,有效避免碎石被水流灌注回肾脏,同时还能避免碎石对输尿管壁造成损伤,安全可靠。 [0048] urolithiasis cavity taking apparatus of the present invention capable of taking a large number of disposable gravel, pus and blood clots block from the ureter lumen diameter or the inner diameter of the channel operating limits, stone rubble constituting not easy to miss, effective avoid kidney stone is poured back into the water, while avoiding damage to the ureteral stone walls, safe and reliable.

[0049]本发明的泌尿系统结石腔内套取装置不仅可用于输尿管结石的封堵和移除,还可应用于其他体腔的封堵和异物移除,包括但不限于以下应用:用于肾结石的封堵及移除,血管血栓的封堵和移除,血管穿刺孔封堵止血,体腔异物的封堵和移除如气管、肠道中异物的处理。 [0049] urolithiasis cavity taking apparatus of the present invention are not only for sealing and removal of ureteral stones, foreign bodies, and is also applicable to other body lumen occlusion is removed, including but not limited to the following applications: in kidney plugging and calculus removal, and removal of thrombus closure, hemostasis of vascular puncture hole closure, sealing and removal of foreign matter such as body lumen process trachea, intestine foreign matter.

[0050] 实施例2 [0050] Example 2

[0051]请参照图3,图3是实施例2的网篮丝的结构示意图。 [0051] Referring to FIG 3, FIG. 3 is a schematic structural diagram of embodiment 2 of the wire basket. 所述的网篮7为三线型网篮,具体地,网篮7由三根椭圆形的网篮丝3构成,三根网篮丝3呈三角形排布;每根网篮丝3靠近近端的半个区段均和另外两根网篮丝3交汇融合,最终三根网篮丝3的近端交汇融合成一股固定于导丝2的远端;使用状态下,每根网篮丝3所形成的面为曲面状,均向着导管1(图中未示出)的中心轴方向收拢;所述的套石兜4(图中未示出)的近端边缘环绕固定于所述网篮7靠近远端的区段上。 The baskets 7 is a three-wire basket, in particular, the basket 7 is composed of three oval wire basket 3, three wire basket 3 triangular arrangement; each wire 3 near the proximal end of the basket each half section and the other two intersection fusion basket wires 3, the proximal end of the basket final three filaments 3 are fused into an intersection fixed to the distal end of the guidewire 2; state of use of each basket wire 3 is formed the surface is curved, are folded toward the conduit 1 (not shown) of the central axis; stone pocket of the sleeve 4 (not shown) fixed to a proximal edge surrounding the basket 7 near the distal section.

[0052] 实施例3 [0052] Example 3

[0053]请参照图4,图4是实施例3的网篮丝的结构示意图。 [0053] Referring to FIG. 4, FIG. 4 is a schematic structural diagram of embodiment 3 of the wire basket. 所述的网篮7为四线型网篮,具体地,网篮7由四根椭圆形的网篮丝3构成,四根网篮丝3呈正方形排布;每根网篮丝3靠近近端的半个区段均和相邻的两根网篮丝3交汇融合,最终四根网篮丝3的近端交汇融合成一股固定于导丝2的远端;使用状态下,每根网篮丝3所形成的面为曲面状,均向着导管1(图中未示出)的中心轴方向收拢。 The baskets 7 is a four-wire basket, in particular, the basket wire basket 7 is made of four oval 3, four basket wires 3 arranged in a square; 3 near each of the basket wires near end of the half section and are adjacent to two intersection fusion basket wires 3, the proximal end of the basket wire 3 eventually four intersection fusion into one fixed to the distal end of the guidewire 2; state of use of each network plane central axis direction of the basket wire 3 is formed in a curved shape, both toward the catheter 1 (not shown) is retracted.

[0054]需要说明的是,实施例2和3的三线、四线型网篮可以适应不同体积、位置的结石的取出,而且该种形状的网篮7使得套石兜4近端边缘均处于固定状态,所以能更好的维持套石兜4的形状。 [0054] Incidentally, lines 2 and 3 according to a third embodiment, four-wire basket can adapt different volumes, the position of extraction of stones, and the shapes of the basket 7 so that the proximal edge of the sleeve rock cage 4 are in fixed state, it is possible to better maintain the shape of the pocket 4 of the stone units. 本发明中,网篮7并不仅限于实施例1-3三种形状,还可以使其它形状,只要保证能有效支撑套石兜4且其疏密程度不会阻碍碎石进入即可。 In the present invention, the basket 7 is not limited to three shapes embodiment Examples 1-3, it is also possible that other shapes, as long as effective rock cage support sleeve 4 and which does not hinder the degree of density gravel enter.

[0055] 实施例4 [0055] Example 4

[0056]请参照图5,图5是实施例4的网篮丝的结构示意图。 [0056] Referring to FIG. 5, FIG. 5 is a schematic structural diagram of Embodiment 4 of Example wire baskets. 所述的网篮7大体呈椭环形,所形成的面为曲面状,其在垂直于导丝2的平面上的投影为圆环形。 The basket 7 substantially elliptical annular surface formed in a curved shape, which is projected on a plane perpendicular to the guide wire 2 is circular. 具体地,所述的网篮7由一根椭圆形的网篮丝3构成,且其长轴的一端端点固定在导丝2的远端。 In particular, the shape of the basket 7 by a wire basket 3 is made elliptical, the major axis and which is fixed at the distal end of end of the guidewire 2. 所述的套石兜4的近端边缘环绕固定于网篮7上。 The rock cage sleeve 4 surrounds the proximal edge fixed to the basket 7.

[0057]本实施例中,所述的网篮7仅由单根网篮丝3构成一个椭环形,网篮丝3的数目减至最低,能最大程度地减少对碎石的阻碍作用,有利于碎石顺利的进入到套石兜4内部。 [0057] In this embodiment, the baskets 7 constituted only by a single basket wire 3 oval ring, the number of wire baskets minimize 3, to minimize impediment to the gravel, there conducive to the smooth gravel into 4 sets of stone inside pocket.

[0058]以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员,在不脱离本发明方法的前提下,还可以做出若干改进和补充,这些改进和补充也应视为本发明的保护范围。 [0058] The above are only preferred embodiments of the present invention, it should be noted that for those of ordinary skill in the art, without departing from the method of the present invention, can make various improvements and additions, modifications and additions of these also it is considered the scope of the present invention.

Claims (4)

1.一种泌尿系统结石腔内套取装置,设有导管和导丝,所述的导管为圆柱形中空管体,其特征在于,所述导丝的远端设有网篮,所述网篮上固定有套石兜,所述的网篮由使用状态下呈曲线状的网篮丝组成,所述网篮丝的远端向着导管的中心轴方向收拢,且所述网篮丝远端双分叉为第一网篮丝和第二网篮丝,所述第一网篮丝和第二网篮丝与套石兜固定,所述套石兜被预塑成兜状且近端的一面是开口的,所述套石兜上还设有微孔。 A urinary system cavity taking apparatus provided with catheters and guidewires, the catheter body is a cylindrical hollow tube, wherein the distal end of the guide wire basket is provided, said a stone basket fixed sleeve pocket, according to the use state by the basket-shaped curved filaments basket, the basket wire distal end toward the central axis of the catheter retracted and the distal wire basket end bifurcated into a first and a second wire basket wire basket, the basket wire and the first wire and the second wire basket stone pocket fixed sleeve, the sleeve is pre-molded pockets stone pocket shape and a proximal end one side is open, the sleeve is also provided with a porous stone pocket.
2.根据权利要求1所述的泌尿系统结石腔内套取装置,其特征在于,所述的套石兜呈长条形兜状,且远端表面呈曲面状。 The cavity of the urinary tract stones taking device of claim 1, wherein said elongated strip rock cage sleeve pocket shape, and the distal surface of the curved surface shape.
3.根据权利要求1所述的泌尿系统结石腔内套取装置,其特征在于,所述的套石兜由塑料或无纺布制成。 3. urinary tract stones said cavity taking apparatus according to claim 1, wherein said sleeve is made of plastic or stone pocket nonwoven fabric.
4.根据权利要求1所述的泌尿系统结石腔内套取装置,其特征在于,所述的网篮丝由形状记忆材料制成。 The cavity of the urinary tract stones taking device of claim 1, wherein said basket wires made of a shape memory material.
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