CN103505270A - Puncture outfit good in sealing property - Google Patents

Puncture outfit good in sealing property Download PDF

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Publication number
CN103505270A
CN103505270A CN201310461463.3A CN201310461463A CN103505270A CN 103505270 A CN103505270 A CN 103505270A CN 201310461463 A CN201310461463 A CN 201310461463A CN 103505270 A CN103505270 A CN 103505270A
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China
Prior art keywords
portion
bottom
thin
seal
tapered
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CN201310461463.3A
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Chinese (zh)
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CN103505270B (en
Inventor
万建峰
黄建设
孙东明
马博平
曹奇
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常州市新能源吻合器总厂有限公司
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Priority to CN201310461463.3A priority Critical patent/CN103505270B/en
Priority claimed from PCT/CN2013/087614 external-priority patent/WO2014187093A1/en
Publication of CN103505270A publication Critical patent/CN103505270A/en
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Publication of CN103505270B publication Critical patent/CN103505270B/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3417Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421Cannulas
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery

Abstract

The invention relates to a puncture outfit good in sealing property. An elastic sealing piece of the puncture outfit comprises a conical conical-surface thin-wall portion and an annular portion connected to the bottom of the conical-surface thin-wall portion. A sector notch is formed in the conical-surface thin-wall portion. At least the wall thickness of the edge of the top end on the edge of the sector notch is smaller than that of the rest portion of the conical-surface thin-wall portion, and/or the wall thickness of the conical-surface thin-wall portion is gradually reduced from the bottom to the top end at least on the area, opposite to the sector notch, of the conical-surface thin-wall portion. According to the puncture outfit good in sealing property, at least the wall thickness of the edge of the top end on the edge of the sector notch is small, so that the edge of the top end can wrap and be attached to a puncturing rod or other surgical instruments, the tension on the edges of the top ends of a plurality of elastic sealing pieces can be distributed evenly, the situation that the edges of some top ends are protruded due to the uneven distribution of the tension is avoided, and the puncture outfit good in sealing property has better package property and airtightness.

Description

密封性能较好的穿刺器 Better puncture sealing performance

技术领域 FIELD

[0001] 本发明涉及一种微创手术器械,特别是涉及在腹腔镜手术中使用的密封性能较好的穿刺器。 [0001] The present invention relates to a minimally invasive surgical instrument, and more particularly to the use of better sealing performance in laparoscopic surgery puncture.

背景技术 Background technique

[0002] 穿刺器是一种刺穿腹壁并为其他手术器械提供进入体腔通道的手术器械,属于一种微创手术器械。 [0002] piercer pierce the abdominal wall and provide a cavity into a body passage of a surgical instrument for other surgical instruments, it is a minimally invasive surgical instrument.

[0003] 穿刺器通常包括作为其他手术器械进入通道的套筒组件和贯穿于所述套筒组件内的穿刺杆。 [0003] As another trocar generally comprises a surgical instrument into the channel of the sleeve assembly and throughout the trocar rod within said sleeve assembly. 为了穿透皮肤,先用手术刀切开皮肤表皮,然后穿刺杆穿透皮肤并进入体腔。 In order to penetrate the skin, the skin incision to the skin with a scalpel, and then penetrates the skin and the piercing rod into the body cavity. 通过向所述穿刺杆的近端施加压力,推动所述穿刺杆的尖端穿过皮肤,直到穿刺器进入体腔,抽出穿刺杆,套筒组件就可以作为执行内窥镜外科手术和内窥镜检查操作的微创器械通道。 Tip through the skin by applying pressure to the proximal end of the piercing rod, pushes the piercing rod into the body cavity until the trocar, the puncture rod out, the sleeve assembly can be performed as endoscopic surgery and endoscopy minimally invasive instrument channel operation.

[0004] 套筒组件用于将各种器械和工具引入腹腔内,而且提供灌气使腹壁升高到器官上方。 [0004] sleeve assembly for various instruments and tools into the abdominal cavity, and the abdominal wall to provide the gas filling elevated above the organs. 在这类手术期间,通过套筒组件插入探测装置(例如,内窥镜或腹腔镜),以允许外科医生在连接到探测装置的外部监视器上观察手术过程。 During such operations, the sleeve assembly is inserted into the detection device (e.g., endoscopic or laparoscopic) to allow the surgeon to view the surgical procedure on a detection device connected to the external monitor.

[0005] 在手术期间,为阻止腹腔内气体泄漏,现有技术采用了一种穿刺器,其套筒组件的顶部具有一壳体,该壳体内设有仪器密封组件,其包括一对刚性环,以及多个分开的压在该对环之间的柔性密封件,各弹性密封件具有180°到270°的圆周且彼此一起叠成层,以形成圆锥形密封件,并且适于密封穿过所述密封组件的手术器械,以阻止腹腔内气体泄漏。 [0005] During surgery, the abdominal cavity to prevent gas leakage, the prior art employs a trocar, the top of which a sleeve assembly having a housing, the housing equipped with the instrument seal assembly comprising a pair of rigid rings and a plurality of separate pressed against the flexible seal between the rings, each having a circumferential elastomeric seal 180 ° and 270 ° to each other with the folded layer to form a conical seal member, and adapted to pass through the seal the surgical instrument seal assembly to prevent gas leakage intraperitoneally.

[0006] 上述现有技术的不足之处在于:上述密封组件的密封性能较低,当腹腔内外气压差大于4KPa时,漏气明显;同时, 在腹腔内外气压差在2KPa时,也存在慢性漏气的情况。 Deficiencies [0006] The prior art in that: a lower sealing performance of the sealing assembly, when the difference is greater than the air pressure inside and outside the abdominal cavity 4KPa, significant leakage; Meanwhile, the difference in pressure inside and outside the abdominal cavity at 2KPa, there chronic drain the case of gas.

发明内容 SUMMARY

[0007] 本发明所要解决的技术问题是提供一种结构简单、密封组件与手术器械之间的密封性能较好的穿刺器。 [0007] The present invention solves the technical problem to provide a simple structure, good sealing performance between the sealing assembly and the surgical instrument puncture.

[0008] 为了解决上述问题,本发明提供了一种穿刺器,包括:密封组件,该密封组件包括多个弹性密封件;各弹性密封件包括:呈圆锥形的锥面薄壁部和连接在该锥面薄壁部底部的环形部;锥面薄壁部上设有扇形缺口,且该扇形缺口的顶端即为所述锥面薄壁部的顶端,且呈弧形角;作为第一种方案,在所述扇形缺口边缘上的至少所述扇形缺口的顶端边缘的壁厚小于所述锥面薄壁部的其余部分;所述锥面薄壁部的其余部分的壁厚一致。 [0008] In order to solve the above problems, the present invention provides a lancing device, comprising: a seal assembly, the seal assembly comprising a plurality of resilient sealing members; each resilient seal member comprising: a conically tapered thin wall portion and connected to the bottom annular portion of the thin portion of the tapered surface; tapered surface provided with the thin-walled portion open sector, and the tip of the fan-shaped notch is the thin portion of the tapered tip, and curved corners; as a first embodiment, at least the wall thickness of the top edge of the fan-shaped notch in said notched edge segment is smaller than the remainder of the tapered portion of the thin wall; uniform wall thickness of the remainder of the thin portion of the tapered surface. 或,作为第二种方案,所述锥面薄壁部上的至少在与所述扇形缺口相对的区域,从锥面薄壁部底部至顶端的壁厚由厚逐渐变薄。 Or, as a second embodiment, at least in the region of the open sector opposite to the wall thickness becomes gradually thinner by the thickness of the top from the bottom of the tapered surface of the tapered surface of the thin portion on the thin portion.

[0009] 上述第二种方案,可以在上述第一种方案的基础上实施,即构成第三种方案。 [0009] The second embodiment may be implemented on the basis of the above-described first embodiment, it constitutes a third embodiment.

[0010] 上述第一或第三种方案在具体实施时,在所述扇形缺口的外边缘上、或至少在所述顶端的外边缘上具有倒角,以使至少所述顶端边缘的壁厚小于所述锥面薄壁部的其余部分。 [0010] In the first or third embodiment the specific embodiment, on the outer edge of the fan-shaped cutout or chamfered at least on the outer edge of said top end, so that the top edge of the wall thickness of at least It is smaller than the remaining portion of the thin portion of the tapered surface. 所述边缘也可以是厚度均匀、壁厚薄于所述锥面薄壁部的其余部分的边缘。 The edge may also be a uniform thickness, the edge thickness thinner than the rest of the thin portion of the tapered surface. [0011] 上述各方案的基础上,优选的方案是,所述锥面薄壁部的外壁上设有至少一条与该锥面薄壁部同轴分布的环形加强筋或带,该加强筋或带上在所述扇形缺口处具有相应的缺口。 [0011] programs on the basis of the above, preferred embodiment, the tapered outer wall of the thin wall portion is provided with at least one rib or coaxial with the annular tapered surface profile of the thin wall portion, the bead or band at the open sector having a respective notch. 环形加强筋或环形加强带,可防止在穿刺杆或其他手术器械插入密封组件、并出现个别弹性密封件受力过大时,所述环形加强筋或带可控制上述的个别弹性密封件的变形量,防止其过量变形而损坏,增加锥面薄壁部的抗撕裂性能。 When the annular reinforcing bead or annular band, prevents the seal assembly is inserted in the trocar rod or other surgical instrument, and the resilient seal member in occasional excessive force, said annular rib or may be controlled with individual elastic deformation of the seal amount, prevent its excessive deformation and damage, increased tear resistance tapered thin wall portion. 此外,与所述锥面薄壁部同轴分布的环形加强筋或带,利于提高相邻的、彼此叠层的弹性密封件之间的密封性能。 Further, coaxially with the annular tapered surface profile of the thin wall portion with the rib or, help to improve the sealing property between the adjacent laminate elastic seal member to each other.

[0012] 上述第二种方案的基础上,优选的方案是,所述的整个锥面薄壁部上,从锥面薄壁部底部至顶端的壁厚由厚逐渐变薄(锥面薄壁部底部的壁厚是临近其顶端处的1.5-3倍),上述弹性密封件的形状、结构,结合壁厚的逐渐变薄方式,适于使相邻贴合的弹性密封件之间的贴合密封更紧密,使所述锥面薄壁部上的应力合理分布,以防止局部隆起而发生漏气或渗液,以进一步利于所述锥面薄壁部紧密包裹在穿刺杆或其他手术器械上,进一步提高密封组件与穿刺杆或其他手术器械之间的包裹性和气密性。 Base [0012] The second aspect, preferred embodiment, the entire thin portion of the tapered surface, the tapered surface of the thin portion from the bottom to the top of the wall thickness gradually reduced (tapered surface by a thin wall thickness the wall thickness of the bottom portion is adjacent the top end thereof 1.5-3 times), the shape of the elastic seal member, structure, incorporated tapering wall thickness adapted to fit between adjacent elastomeric seal bonded sealing together more closely, the stress on the thin portion of the tapered surface reasonable distribution of local doming and to prevent gas leakage or exudate, in order to further facilitate the tapered thin wall portion tightly wrapped in the piercing rod or other surgical instrument , to further improve the airtightness between the package and the seal assembly and the puncturing rod or other surgical instrument. [0013] 在上述各方案的基础上,进一步优选:各弹性密封件的锥面薄壁部的底部具有不小于180°的圆周,或300°到340°的圆周。 [0013] On the basis of the above aspect, further preferably: bottom of the tapered surface of each thin portion having a circumferential elastomeric seal is not less than 180 °, or 300 ° to the circumference of 340 °. 所述扇形缺口的顶端边缘呈圆弧形;所述环形部上设有与所述扇形缺口相对的底边缺口;该底边缺口的宽度小于所述扇形缺口的底部宽度,且底边缺口正对所述扇形缺口的中央,以在固定各弹性密封件的锥面薄壁部的底部圆周的同时,尽可能固定各弹性密封件的扇形缺口的径向边缘的位置,确保叠层的相邻弹性密封件上的扇形缺口能错开足够角度,避免相邻的扇形缺口之间产生泄漏通道,最终确保了相邻弹性密封件之间的密封性。 To the top edge of the circular arcuate segment cutout; the base is provided with notches on the sector opposite the annular notch portion; base width of the notch is smaller than the width of the bottom of the sector notch, base notch and n the central sector gap, while at the bottom to the tapered surface of the thin portion of each elastic seal member fixed circumference, as the position fixing elastic radial edge of each fan-shaped cutout of the sealing member, ensure that adjacent stacks open sector on the elastic seal member can be displaced enough angle to avoid leak paths between the adjacent segment gap, ultimately ensure sealability between the adjacent elastomeric seal.

[0014] 在上述各方案的基础上,进一步优选的方案是:该穿刺器还包括:套筒组件,所述密封组件设于该套筒组件顶部的壳体中;所述密封组件还包括一对刚性环,各弹性密封件设于该对环之间;各弹性密封件的环形部彼此一起叠成层,以使各弹性密封件的锥面薄壁部形成圆锥形密封件,进而使穿过所述密封组件的手术器械与该密封组件活动密封配合。 [0014] On the basis of the above aspect, a further preferred embodiment: the piercing device further comprising: a sleeve assembly, the seal assembly disposed in the housing at the top of the sleeve assembly; the assembly further comprises a seal rigid ring, each of the elastomeric seal disposed between the pair of rings; each annular resilient seal portion with each other folded layers, so that each of the resilient tapered thin portion of the seal member is formed a conical seal, thereby enabling to wear through the seal with the surgical instrument assembly of the sealing assembly into sealing engagement activity. 所述套筒组件顶部的壳体包括:上下密封配合的转换帽和套筒座;所述密封组件设于转换帽中的工作通道上。 The top of the sleeve housing assembly comprising: a down conversion with a cap and a sealing sleeve holder; the sealing assembly is provided on a working channel cap conversion.

[0015] 在上述各方案的基础上,所述套筒座包括:碗状体、纵向连接在该碗状体底部中央且与该碗状体一体的筒体、密封固定在该碗状体顶部的环形盖板,以及设于该碗状体侧壁上的旋塞阀;旋塞阀用于允许和阻止灌注流体通过筒体进入或排出体腔;所述环形盖板的外侧壁上均匀分布有至少两个用于设置回字形锁扣的安装槽;回字形锁扣的内侧壁上设有弹簧;所述环形盖板的顶面上分布有与所述安装槽上下贯通的插接口;所述转换帽的底部向下延伸有多个用于分别插入所述插接口的锁舌,该锁舌的内侧具有锁槽,在该锁舌依次穿过所述插接口、回字形锁扣上的通孔后,在所述弹簧的作用下,所述锁槽固定配合在所述回字形锁扣的通孔中,进而使转换帽和套筒座接插固定。 [0015] On the basis of the above-described embodiment, the sleeve holder comprising: a bowl, the longitudinal center of the bottom is connected to the bowl and is integral with the cylindrical bowl, the bowl seal body is fixed to the top an annular cover plate, and a cock disposed in the side wall of the bowl; stopcock for allowing and preventing the perfusion fluid through the barrel into or out of a body cavity; outer annular wall of said cover plate having at least two uniformly distributed a set back for latching shaped mounting groove; shaped inner side wall of the back of a spring latch; annular top surface of the cover plate and the mounting are distributed down through the slot sockets; converting said cap after the bottom with a plurality of downwardly extending bolt interface for inserting the plug, the inside of the tongue has a locking groove in the bolt passes through the sockets, the through-hole-shaped back latch , under the action of the spring, the locking groove is fixed in the through hole of the fitting back to shape the latch, thereby enabling the conversion plug cap and the sleeve holder is fixed.

[0016] 在上述各方案的基础上,所述套筒座的碗状体内的工作通道上设有阻气阀;该阻气阀包括弹性材料制成的杯体部,该杯体部的底面为平面,该底面中央设有十字形缝;该杯体部的侧壁上设有分别与所述十字形缝的四个夹角相对的四个弧形槽;所述手术器械适于穿过所述十字形缝,且该杯体部的底面在没有手术器械穿过时适于密封所述工作通道,由此防止通过旋塞阀、筒体输送至体腔的灌注气体的发生泄漏。 [0016] On the basis of the above-described embodiment, the upper bowl seating within a working channel of the sleeve is provided with a choke valve; the choke body comprising a bottom surface of the cup portion made of an elastic material, the cup portion flat, the bottom surface is provided with a central cross-shaped slit; provided with four arcuate slots respectively angle four cross-shaped slit of said opposing upper side wall portion of the cup body; adapted to pass through the surgical instrument the cross-shaped slit, and a bottom surface of the cup portion is adapted to seal the working channel when no surgical instrument is disposed therethrough, thereby preventing leakage insufflation gas delivered to the body cavity through the stopcock, the barrel.

[0017] 使用时,杯体部中的气压作用在四个弧形槽上并挤压所述十字形缝的四个夹角,在没有手术器械穿过时使所述十字形缝闭合,进而密封;当手术器械穿过所述十字形缝时,所述工作通道由所述密封组件实现密封。 [0017] In use, the air pressure in the cup portion of the arcuate slot and pressing said four cross-shaped four angle joints, so that the cross-shaped when no surgical instrument through a closed slit, and further seal ; when the surgical instrument through the cross-shaped slit, the working channel is implemented by the seal assembly sealing. 该杯体部的底面通过十字形缝与柱形手术器械滑动配合,相对于鸭嘴式阻气阀的夹缝式结构,材料变形小,相应的作用于手术器械上的阻力减小。 The bottom surface of the cup body through the cross-shaped slit portion of the surgical instrument with the cylindrical sliding fit with respect to the nip structure duckbill choke valve, a small deformation of the material corresponding to the effect of reducing drag on a surgical instrument.

[0018] 各弧形槽的深度,自上而下逐渐增大,以使挤压所述十字形缝的四个夹角的压力的作用效果更好,进而提高密封效果。 [0018] The depth of each groove is arcuate, gradually increases from top to bottom, so that the pressure pressing the cross-shaped four angle joints and effects better, and thus improve the sealing effect. 所述四个弧形槽中心对称分布,以使挤压所述十字形缝的四个夹角的压力均匀。 The four arcuate slots symmetrically distributed, so that the pressure pressing the cross-shaped four angle joints uniform.

[0019] 进一步优选的方案是:所述杯体部的顶部具有一体成型的凸缘,该凸缘用于与所述套筒座的环形盖板的中央通孔、以及转换帽的底部密封配合,以使所述转换帽与套筒座上下密封配合。 [0019] A further preferred embodiment is: a top portion of the cup body having integrally formed flange for the conversion of the cap, and a bottom central through hole of the sleeve and an annular sealing seat with the cover plate, conversion to the cap sealing engagement with the upper and lower seat sleeve.

[0020] 进一步优选的方案是:该穿刺器还包括贯穿于所述套筒组件内的穿刺杆,该穿刺杆包括ABS材料的杆体部和连接在该杆体部末端的PC材料的头部。 [0020] Further preferred embodiment is: the piercer comprises a piercing rod further penetrating to within said sleeve assembly, the piercing rod includes a shaft and a head portion connected to the PC material of the end portion of the rod member ABS. 相对于采用金属制成的杆体部,本发明具有成本低廉、工艺简便、安全性更高的特点。 Relative to the shaft portion made of a metal, the present invention has a low cost, simple process, higher security features.

[0021] 本发明相对于现有技术具有积极的效果: [0021] with the present invention has a positive effect on the prior art:

(I)本发明的穿刺器相对于现有技术,所述锥面薄壁部上无加强垫部分,相应的生产工艺更简便、用料较少;此外,现有技术弹性密封件中,最易发生漏气或渗液的部位,即为所述扇形缺口的顶端边缘上。 Piercer (I) of the present invention relative to the prior art, the thin portion of the tapered surface without reinforcing pad portion, the corresponding production process easier and less material; In addition, the prior art elastomeric seal, most or exudate leakage prone parts, namely the upper edge of the top of the open sector. 本发明中,所述扇形缺口边缘上的至少所述顶端边缘的壁厚较薄,腹腔内较大的气压适于挤压所述顶端边缘,利于所述顶端边缘紧密包裹、贴合在穿刺杆或其他手术器械上,且利于所述多个弹性密封件上的顶端边缘的张力均匀分布,避免因张力分布不均而出现个别顶端边缘发生隆起的情况,因此具有更好的包裹性和气密性;经仿真实验,即便腹腔内的气压与外界气压之差达到8KPa,也不存在明显漏气或渗液的情况(gp5分钟,腹腔内外压差变化幅度在5%以内)。 In the present invention, the fan-shaped notched edge of at least the top edge of the thin wall thickness, the larger the pressure in the abdominal cavity is adapted pressing top edge, the top edge of the conducive tightly packed, bonded trocar rod or other surgical instrument, and a plurality of top edges facilitates the resilient seal uniform tension, to avoid the occurrence of the raised edge of the individual to the top due to the uneven distribution of tension occurs, and therefore better airtightness and parcel ; the simulation results, even if the difference between ambient air pressure and the air pressure within the abdominal cavity 8KPa reached, where there is no significant leakage or oozing (GP5 minutes, abdominal external pressure variation width of less than 5%). 在腹腔内外压差达到4KPa,也不存在慢性漏气或渗液的情况(即半小时内,腹腔内外压差变化幅度在5%以内)。 4KPa external pressure in the peritoneal cavity to reach, or where chronic leakage of exudate is not present (i.e., within half an hour, abdominal external pressure variation width of less than 5%).

`[0022] (2)本发明的穿刺器的密封组件中,弹性密封件的锥面薄壁部的底部具有不小于180°的圆周,优选不小于270° ;当采用300°到340°的圆周时,相应地,所述弹性密封件上扇形缺口就较小,其相应产生的技术效果是:在手术时,手术器械穿过所述密封组件后,手术器械的侧壁与各弹性密封件的扇形缺口的径向边缘包裹更紧密,进而提高密封性能,即便腹腔内外气压差达到8.5KPa,也不存在明显漏气的情况。 `[0022] (2) Puncture sealing assembly of the present invention, the tapered bottom thin portion having a circumferential elastomeric seal is not less than 180 °, preferably not less than 270 °; when using the 340 ° to 300 ° when the circumference, respectively, said upper elastomeric seal on the small cutout segment, the corresponding technical effect is produced: at the time of surgery, the surgical instrument through the seal assembly, the side walls of the surgical instrument with the elastomeric seal radial edge of the open sector wrapped more tightly, thereby improving the sealing performance, even when the pressure difference inside and outside the abdominal cavity reaches 8.5KPa, where there is no significant leak. 此外,若所述弹性密封件的锥面薄壁部的底部圆周大于340°,则会导致手术器械插入困难,同时导致所述弹性密封件的扇形缺口的径向边缘变型较大,进而影响叠层的相邻弹性密封件之间的密封性。 Further, if the bottom of the circumferential tapered thin portion is larger than the resilient seal member 340 °, it will cause the surgical instrument insertion is difficult, while causing radial edge open sector of the elastic seal member variations greater, thereby affecting the stack elastomeric seal tightness between adjacent layers. 若所述弹性密封件的锥面薄壁部的底部圆周小于300°,则手术器械的侧壁与各弹性密封件的扇形缺口的径向边缘的包裹力逐渐变弱; If the bottom of the tapered thin wall portion is smaller than a circumferential elastomeric seal 300 °, the radial edge of the sector wrapped force notched sidewall with the surgical instrument elastomeric seal became weaker;

(3)本发明的套筒组件顶部的壳体包括:上下密封配合的转换帽和套筒座;相对于一体结构,该分体结构的优点:利于在手术过程中,根据实际情况及时更换或清理转换帽;同时,在手术过程中,可以清理套筒座的碗状体。 (3) a top housing sleeve assembly of the present invention comprises: upper and lower sealing engagement with the cap and the sleeve base conversion; integral structure with respect to the advantages, the split structure: facilitate the procedure, the actual situation replaced or clean conversion cap; Meanwhile, during the procedure, can clean the bowl of the sleeve holder. 此外,一旦转换帽和套筒座之一发生损坏,剩余的部件可以与另一组穿刺器配合使用,利于节约;本发明的转换帽和套筒座的接插配合结构,具有使用简便,可靠性较高的特点; Further, once one of the cap and the sleeve base conversion is damaged, the remaining components can be used with another set of puncture, help save; mating connector cap and sleeve holder conversion structure of the present invention is easy to use, reliable higher sexual characteristics;

(4)本发明的阻气阀的底面中央设有十字形缝;该杯体部的侧壁上设有分别与所述十字形缝的四个夹角相对的四个弧形槽;使用时,杯体部中的气压作用在四个弧形槽上并挤压所述十字形缝的四个夹角,在没有手术器械穿过时使所述十字形缝闭合,进而密封当手术器械穿过所述十字形缝时,所述工作通道由所述密封组件实现密封。 (4) center of the bottom of the choke valve according to the present invention is provided with a cross-shaped slit; provided with four arcuate slots respectively angle four cross-shaped slit of said opposing upper side wall portion of the cup body; use , air pressure in the cup portion of the arcuate slot and pressing said four cross-shaped four angle joints, so that the cross-shaped when no surgical instrument through a closed slit, and further through the seal when the surgical instrument when the cross-shaped slit, the working channel is implemented by the seal assembly sealing.

附图说明 BRIEF DESCRIPTION

[0023] 为了清楚说明本发明的创新原理及其相比于现有产品的技术优势,下面借助于附图通过应用所述原理的非限制性实例说明一个可能的实施例。 [0023] To clearly illustrate the innovative principles of the present invention and its advantages compared with the prior art products, by means of the following drawings a possible embodiment by way of non-limiting example applying said principles will be described. 在图中: In the picture:

图1A为本发明的穿刺器的结构示意图; FIG 1A is a schematic view of the structure of the present invention, the piercing;

图1B为本发明的穿刺器的俯视图; FIG 1B is a plan view of a trocar of the present invention;

图1C为图1A中的穿刺器的AA剖面结构图; FIG 1C AA cross-sectional view of the structure of FIG. 1A trocar;

图1D为图1A中的穿刺器的BB剖面结构图; FIG 1D BB cross-sectional view of the structure of FIG. 1A trocar;

图1E为本发明的穿刺器的立体图; FIG 1E is a perspective view of a trocar of the present invention;

图1F为本发明的穿刺器的壳体部分的剖面结构图; FIG. 1F cross-sectional structural view of the housing portion of the trocar of the present invention;

图1G为本发明的穿刺器中的转换帽剖面结构图; FIG. 1G converter trocar cap sectional structural view of the present invention;

图2为本发明的穿刺器的分解结构示意图;` WBS trocar FIG 2 is a schematic view of the present invention; '

图3A为本发明的套筒座的俯视图; FIG 3A is a plan view of the seat of the sleeve of the present invention;

图3B为本发明的套筒座的CC剖面结构图; FIG 3B CC cross-sectional structural view of the present invention, the sleeve holder;

图3C为本发明的套筒座的DD剖面结构图; FIG. 3C DD cross-sectional structural view of the present invention, the sleeve holder;

图4A为本发明的阻气阀的结构示意图; Choke valve configuration of FIG. 4A is a schematic view of the present disclosure;

图4B为图4A中的阻气阀的右视图; 4B is a right side view of the choke valve in FIG. 4A;

图4C为图4A中的阻气阀的立体图; FIG 4C is a perspective view of a choke valve of FIG. 4A;

图4D为图4A中的阻气阀的左视图; FIG 4D is a left side view of a choke valve of FIG. 4A;

图5A为本发明的弹性密封件的结构示意图; FIG 5A is a schematic structural diagram of the present invention, the elastic seal member; and

图5B为图5A中的弹性密封件的仰视图; FIG 5B is a bottom view of a sealing member of FIG. 5A elasticity;

图5C为图5A中的弹性密封件的立体图; FIG 5C is a perspective view of a sealing member of FIG. 5A elasticity;

图为图5B中的弹性密封件的EE剖面结构示意图; The picture shows the cross-sectional structure of the elastic EE of FIG. 5B a schematic view of the seal;

图5E为图5B中的弹性密封件的EE剖面的另一结构示意图; FIG. 5E another schematic cross-sectional view of the structure of EE sealing member is resilient in FIG. 5B;

图6A为本发明的另一种弹性密封件的结构示意图; FIG 6A schematically shows a sealing structure of another elastic member of the present invention;

图6B为图6A的俯视图; 6B is a plan view of FIG. 6A;

图7A为本发明的第三种弹性密封件的结构示意图; FIG. 7A a schematic view of a third structure of the present invention, an elastic sealing member;

图7B为图7A的俯视图; 7B is a plan view of FIG. 7A;

图8为本发明的第四种弹性密封件的结构示意图。 Figure 8 is a schematic view of a fourth invention, the resilient seal structure.

具体实施方式 Detailed ways

[0024] 实施例1 [0024] Example 1

见图1至4,本实施例的穿刺器,包括:套筒组件I,该套筒组件顶部的壳体2包括:上下密封配合的转换帽2-1和套筒座2-2 ;所述套筒座2-2包括:碗状体2-20、纵向连接在该碗状体2-20底部中央且与该碗状体2-20 —体的筒体2-21、密封固定在该碗状体2_20顶部的环形盖板2-22,以及设于该碗状体2-20侧壁上的旋塞阀4。 Figure 1-4, an embodiment of the present embodiment puncture, comprising: a sleeve assembly I, the housing 2 of the top sleeve assembly comprising: a down conversion cap sealing engagement sleeve holder 2-2 and 2-1; the 2-2 sleeve holder comprising: a bowl 2-20, longitudinally connected at the bottom center of the bowl and the bowl 2-20 member 2-20-- cylindrical body 2-21, a seal fixed to the bowl 2_20 annular plate-shaped body on top of 2-22, and a cock 4 disposed on the sidewall of the bowl 2-20. 该旋塞阀4用于允许和阻止灌注流体通过筒体2-21进入或排出体腔;转换帽2-1和套筒座2-2的中心轴线上设有用于穿设手术器械或穿刺杆的工作通道10 ;一密封组件3设于转换帽2-1中的工作通道上,密封组件3上方设有保护器6。 The cock 4 for allowing and preventing 2-21 perfusion fluid enters the body cavity through the barrel or discharge; is provided with a puncture or surgical instrument disposed through the working lever on the center axis of the cap 21 and the sleeve holder conversion 2-2 passage 10; a sealing assembly 3 is provided on the cap converter 2-1 in the working channel above the sealing assembly 3 is provided with the protector 6.

[0025] 如图2、图5A至5C,所述密封组件3包括一对刚性环3_1,以及3至6个(优选4个)设于该对环3-1之间的弹性密封件3-2 ;各弹性密封件3-2包括:呈圆锥形的锥面薄壁部3-21和连接在该锥面薄壁部3-21底部的环形部3-22 ;锥面薄壁部3_21上设有扇形缺口3-20,且该扇形缺口3-20的顶端即为所述锥面薄壁部3-21的顶端边缘3_24,且各弹性密封件3-2的环形部3-22彼此一起叠成层,以使各弹性密封件3-2的锥面薄壁部3_21形成圆锥形密封件,进而使穿过所述密封组件3的手术器械与该密封组件3活动密封配合;各弹性密封件3-2的锥面薄壁部的底部具有300°到340° (优选320° )的圆周。 [0025] As shown in FIG 2, FIGS. 5A to 5C, the seal assembly comprising a pair of rigid ring 3 3_1, and 3 to 6 (preferably 4) is provided between the elastic sealing ring member 3-1 of the 3- 2; 3-2 each elastic seal comprising: a conically tapered surface 3-21 and a thin portion connecting the thin-walled portion the tapered surface of the annular bottom portion 3-21 3-22; tapered surface on the thin-walled portion 3_21 3-20 with open sector, and the sector is the notch to the top of the tapered surface 3-20 of the thin-walled portion to the top edge 3_24 3-21, and each of the annular elastic seal member portion together with each other 3-22 3-2 folded layers, so that each resilient seal member 3_21 a conical tapered seal the thin-walled portion 3-2, thereby enabling the surgical instrument through the sealing assembly 3 and the seal with the sealing assembly 3 activities; each elastic seal a bottom member 3-2 of the tapered thin wall portion having a circumferential 300 ° to 340 ° (preferably 320 °) of.

[0026] 所述环形部3-22上设有与所述扇形缺口3-20相对、且贯通的底边缺口3_220 ;所述环形部3-22还均匀分布有用于穿设在所述的一对刚性环3-1上的销钉上的孔3-23,以固定各弹性密封件3-2。 [0026] The annular portion is provided with 3-22 3-20 opposite the open sector, and penetrates the bottom notch 3_220; of the annular portion 3-22 further uniformly distributed in said bored for a 3-23 of the pin holes on the rigid ring 3-1 to 3-2 fix the elastic seal member.

[0027] 如图5A,所述底边缺口3-220的宽度小于所述扇形缺口3_20的底部宽度,且底边缺口3-220正对所述扇形缺口3-20的中央,以在固定各弹性密封件3-2的锥面薄壁部的底部圆周的同时,尽可能固定各弹性密封件3-2的扇形缺口3-20的径向边缘的位置,确保叠层的相邻弹性密封件3-2上的扇形缺口3-20能错开足够角度,避免相邻的扇形缺口3-20之间产生泄漏通道,最终确保了相邻弹性密封件3-2之间的密封性。 [0027] FIG. 5A, the bottom width of the notch 3-220 is less than the width of the bottom 3_20 open sector, and the base central notch 3-220 n open sector of the 3-20, in order to fix the while the elastic seal member circumferentially tapered bottom thin portion 3-2, as the fixed position of each of the elastomeric seal of the radial edge of the sector notch 3-2 3-20, ensure that adjacent elastomeric seal laminate open sector can be offset on 3-23-20 enough angle to avoid leakage path adjacent the open sector between 3-20, and ultimately ensure the sealability between the adjacent elastomeric seal 3-2.

[0028] 在所述扇形缺口3-20边缘上或至少是所述顶端边缘3-24的壁厚小于所述锥面薄壁部3-21的其余部分。 [0028] 3-20 in the open sector edge or top edge of the wall thickness is at least 3-24 less than the rest of the thin portion of the tapered surface 3-21. 所述锥面薄壁部3-21的其余部分的壁厚一致;具体实施时,在所述扇形缺口3-20的外边缘上、或所述顶端边缘3-24 (如图5D)和/或邻近该顶端边缘3_24的外边缘3-30上具有倒角3-29 (如图5E),以使所述相应外边缘的壁厚的最薄处是所述锥面薄壁部的其余部分的1/2以下。 The uniform wall thickness of the rest of the thin portion of the tapered surface 3-21; the specific embodiment, on the outer edge of the fan-shaped cutout 3-20, 3-24, or the top edge (FIG. 5D) and / or adjacent the top edge of the outer edge 3_24 3-29 3-30 chamfered (FIG. 5E) on, so that the respective outer edges of the thinnest wall thickness of the remaining portion is tapered thin wall portion 1/2 or less.

[0029] 作为另一种可选的方案,所述顶端边缘也可以是厚度均匀、壁厚薄于所述锥面薄壁部3-21的其余部分的边缘,该顶端边缘的厚度是所述锥面薄壁部的其余部分的1/2至1/4。 [0029] As another alternative embodiment, the top edge may be of uniform thickness, the edge thickness is thinner than the rest of the tapered surface 3-21 of the thin portion, the thickness of the top edge of the cone is the rest of the surface of the thin-walled portion is 1/2 to 1/4.

[0030] 其相应产生的技术效果是:本实施例的所述弹性密封件上扇形缺口较小(即各弹性密封件3-2的锥面薄壁部的底部具有300°到340°的圆周),在手术时,手术器械穿过所述密封组件3后,手术器械的侧壁与各弹性密封件3的扇形缺口3-20的径向边缘包裹更紧密,进而提高密封性能;此外,相对于现有技术,所述锥面薄壁部上无加强垫部分,相应的生产工艺更简便、用料较少;此外,现有技术弹性密封件中,最易发生漏气或渗液的部位,即为所述扇形缺口的所述顶端边缘上。 [0030] A technical effect of its corresponding generated are: the resilient seal member of the present embodiment is smaller open sector (i.e., the bottom of each tapered elastomeric seal having a thin-walled circumferential portions 3-2 to 340 ° to 300 ° ), during surgery, surgical instrument through the seal assembly 3, the side walls of the surgical instrument with the elastomeric seal edge radially open sector 3 3-20 wrapped more tightly, thereby improving the sealing performance; Further, the relative in the prior art, the thin portion of the tapered surface without reinforcing pad portion, the corresponding production process easier and less material; in addition, the prior art elastomeric seal, leakage or oozing sites most likely to occur , that is, the top edge of the sector notch. 本实施例中,所述扇形缺口的边缘壁厚较薄,或至少所述顶端边缘的壁厚较薄,腹腔内较大的气压适于挤压所述顶端边缘,利于所述顶端边缘更紧密地包裹、贴合在穿刺杆或其他手术器械上,且利于所述多个弹性密封件上的顶端边缘的张力均匀分布,避免因张力分布不均而出现个别顶端边缘发生隆起的情况,因此具有更好的包裹性和气密性;经仿真实验,即便腹腔内外气压差达到8KPa,也不存在明显漏气或渗液的情况(即5分钟,腹腔内外压差变化幅度在5%以内)。 In this embodiment, an edge notch thin wall thickness of the sector, or at least the top edge of the thin wall thickness, the larger the pressure in the abdominal cavity is adapted pressing top edge, the top edge of the conducive Closer wrapped, is bonded to the piercing rod or other surgical instrument, and is conducive to the tension on the top edge of the plurality of resilient seal uniform distribution, to avoid the occurrence of the raised edge of the individual to the top due to the uneven distribution of tension occurs, thus having wrapping and better airtightness; the simulation results, even if the pressure difference inside and outside the abdominal cavity 8KPa reached, where there is no significant leakage or exudation (i.e. five minutes, abdominal external pressure variation width of less than 5%). 在腹腔内外压差达到4KPa,也不存在慢性漏气或渗液的情况(即半小时,腹腔内外压差变化幅度在5%以内)。 4KPa external pressure in the peritoneal cavity to reach, or where chronic leakage of exudate is not present (i.e., a half hour, abdominal external pressure variation width of less than 5%).

[0031] 如图2,所述环形盖板2-22的外侧壁上均匀分布有至少两个用于设置回字形锁扣2-23的安装槽2-26 ;回字形锁扣2-23的内侧壁上设有弹簧2_24 ;所述环形盖板2_22的顶面上分布有与所述安装槽2-26上下贯通的插接口2-25 ;所述转换帽2-1的底部向下延伸有多个用于分别插入所述插接口2-25的锁舌2-11,该锁舌2-11的内侧具有锁槽2_12,在该锁舌2-11依次穿过所述插接口2-25、回字形锁扣2-23上的通孔2_27后,在所述弹簧2-24的作用下,所述锁槽2-12固定配合在所述回字形锁扣2-23的通孔2_27中。 [0031] As shown in FIG 2, the annular outer side wall of the cap plate 2-22 2-23 uniformly distributed mounting groove provided for at least two return-shaped shackle 2-26; 2-23 the latch back to shape a spring 2_24 inner side wall; a top surface of said annular cover plate 2_22 are distributed vertically through the mounting slots 2-26 2-25 sockets; converting said bottom cap has a downwardly extending 2-1 each of said plurality of sockets for inserting the tongue 2-11 2-25, 2-11 inside the bolt having locking grooves 2_12, the sockets 2-25 2-11 passes through the bolt , through hole back to shape after 2_27 latch 2-23, 2-24 in the spring at the lock groove 2-12 in the fixed fit back through hole shaped latching 2-23 2_27 .

[0032] 如图4,所述套筒座2-2的碗状体2-20内的工作通道上设有阻气阀7 ;该阻气阀7包括弹性材料制成的杯体部71,该杯体部71的底面72为平面,该底面72中央设有十字形缝73 ;该杯体部71的侧壁上设有分别与所述十字形缝的四个夹角相对的四个弧形槽74 ;所述手术器械适于穿过所述十字形缝73,且该杯体部的底面72在没有手术器械穿过时适于密封所述工作通道10,由此防止通过旋塞阀4、筒体2-21输送至体腔内的灌注气体的发生泄漏。 [0032] FIG. 4, the choke valve 7 is provided with a working channel within said sleeve holder 2-20 2-2 bowl; the choke valve 7 comprises a cup portion 71 made of an elastic material, the bottom surface 71 of the cup portion 72 is flat, the bottom surface 72 is provided with a central cross-shaped slit 73; angle respectively provided with four cross-shaped slit of said four arcs on opposite side walls 71 of the cup portion shaped groove 74; the surgical instrument adapted to pass through the cross-shaped slit 73, and a bottom surface 72 of the cup body portion 10 is adapted to seal the working channel when no surgical instrument is disposed therethrough, thereby preventing the stopcock through 4, 2-21 cylinder delivered to the leakage of the insufflation gas in the body cavity.

[0033] 使用时,杯体部71中的气压作用在四个弧形槽74上并挤压所述十字形缝73的四个夹角,在没有手术器械穿过时使所述十字形缝73闭合,进而密封当手术器械穿过所述十字形缝73时,所述工作通道由所述密封组件3实现密封。 [0033] In use, the air pressure in the cup portion 71 in the four arcuate slot 74 and pressing the cross-shaped four angle joints 73 so that the cross-shaped slit 73 when no surgical instrument through closed, and further through the seal when the surgical instrument of the cross-shaped slit 73, the working channel sealing by the sealing assembly 3. 弹性密封件3-2和阻气阀7采用橡胶制成。 3-2 elastomeric seal and the choke valve 7 is made of rubber.

[0034] 所述杯体部71的顶部具有一体成型的凸缘75,该凸缘75用于与所述套筒座2_2的环形盖板2-22的中央通孔、以及转换帽2-1的底部密封配合,以使所述转换帽2-1与套筒座2-2上下密封配合。 [0034] a top portion of the cup body 71 has integrally formed flanges 75, the flanges 75 with the sleeve for the annular seat cover 2_2 2-22 central through hole, and the conversion of the cap 2-1 with a bottom seal, so that the cap converter 2-1 and 2-2 down sleeve holder sealing engagement.

[0035] 该穿刺器还包括贯穿于所述套筒组件内的穿刺杆,该穿刺杆包括ABS材料的杆体部和连接在该杆体部末端的PC材料的头部。 [0035] The lancing device further comprises a piercing rod insertion within said sleeve assembly, the trocar rod includes a shaft and a head portion connected to the PC material of the end portion of the rod member ABS. 相对于采用金属制成的杆体部,本发明具有成本低廉、工艺简便、安全性更高的特点。 Relative to the shaft portion made of a metal, the present invention has a low cost, simple process, higher security features.

[0036] 相对于一体结构,本发明的壳体22采用分体结构,利于在手术过程中,根据实际情况及时更换或清理转换帽2-1 ;同时,在手术过程中,可以清理套筒座2-2的碗状体2-20。 [0036] with respect to the integral structure, the housing 22 of the present invention structure is adopted, facilitate during surgery, according to the actual situation timely replacement or cleaning cap converter 2-1; Meanwhile, during the procedure, the sleeve holder can be cleaned 2-2 bowl 2-20. 此外,一旦转换帽2-1和套筒座2-2之一发生损坏,剩余的部件可以与另一组穿刺器配合使用,利于节约。 Moreover, once the cap 21 and the sleeve holder conversion 2-2 damaged one, the remaining components can be used with another set of puncture, help save.

[0037] 实施例2 [0037] Example 2

在实施例1的基础上,本实施例存在如下变型: On the basis of the embodiment 1, the present embodiment has the following variations:

如图6A和6B,所述锥面薄壁部3-21的外壁上设有与该锥面薄壁部同轴分布的环形加强筋3-25和3-26 (如图6A和6B),或所述锥面薄壁部3_21的外壁上设有与该锥面薄壁部同轴分布的环形加强带3-27 (如图7A和7B),该加强筋或带上在所述扇形缺口处具有相应的缺口。 Figures 6A and 6B, the tapered outer wall of the thin wall portion is provided with reinforcing ribs 3-21 3-25 and 3-26 (FIG. 6A and 6B) coaxial with the annular tapered surface profile of the thin wall portion, the tapered portion or an outer wall of the thin-walled reinforcing strip is provided 3_21 3-27 (FIG. 7A and 7B) coaxial with the annular tapered surface profile of the thin wall portion, the bead or belt in the sector gap with the corresponding notches.

[0038] 环形加强筋或环形加强带可使锥面薄壁部更紧密地包裹在穿刺杆或其他手术器械上,也即具有更好的包裹性,即便所述锥面薄壁部的其余部分存在局部隆起,也不影响气密性,使密封组件与穿刺杆或其他手术器械之间的气密性更好;此外,环形加强筋或环形加强带,可防止在穿刺杆或其他手术器械插入密封组件、并出现个别弹性密封件受力过大时,所述环形加强筋或带可控制上述的个别弹性密封件的变形量,防止其过量变形而损坏,增加锥面薄壁部的抗撕裂性能。 [0038] The annular reinforcing bead or annular tapered surface with a thin wall portion can be more closely wrapped around the piercing rod or other surgical instrument, i.e. with better encapsulated, even if the rest of the tapered thin wall portion local doming exists, does not affect the airtightness of the airtight seal between the assembly and the piercing rod or other surgical instrument better; in addition, annular reinforcing bead or annular band, is inserted in the trocar rod is prevented or other surgical instrument the seal assembly, and the emergence of individual elastomeric seal when excessive force, said annular bead or strip may be individually controlled deformation of the elastic seal member, which prevents excessive deformation and damage, increased resistance to tearing tapered thin portion cracking performance.

[0039] 此外,与所述锥面薄壁部同轴分布的环形加强筋或带,利于提高相邻的、彼此叠层的弹性密封件之间的密封性能。 [0039] In addition, the distribution of coaxial annular tapered surface with a thin wall portion or rib, help to improve the sealing property between the adjacent laminate elastic seal member to each other.

[0040] 经仿真实验,即便腹腔内外气压差达到8.5KPa,所述密封组件也不存在明显漏气或渗液的情况(即5分钟,腹腔内外压差变化幅度在5%以内)。 [0040] The simulation results, even if the pressure difference inside and outside the abdominal cavity reaches 8.5KPa, there is no case where the seal assembly, or obvious leakage of exudate (i.e., 5 minutes, abdominal external pressure variation width of less than 5%). 在腹腔内外压差达到5KPa,也不存在慢性漏气或渗液的情况(即半小时内,腹腔内外压差变化幅度在5%以内)。 5KPa external pressure in the peritoneal cavity to reach, or where chronic leakage of exudate is not present (i.e., within half an hour, abdominal external pressure variation width of less than 5%).

[0041]实施例3 [0041] Example 3

在实施例1或2的基础上,本实施例存在如下变型: On the basis of Example 1 or 2, the present embodiment has the following variations:

如图8,在所述锥面薄壁部3-21上的与所述扇形缺口3-20相对的区域3-28 (其包括所述顶端边缘3-24),从锥面薄壁部3-21的底部至顶端的壁厚由厚逐渐变薄(锥面薄壁部底部的壁厚是临近其顶端处的1.5-3倍),所述锥面薄壁部3-21的其余部分的壁厚与锥面薄壁部3-21的底部的一致,该结构适于防止局部隆起,利于所述锥面薄壁部整体紧密包裹在穿刺杆或其他手术器械上,以提高密封组件与穿刺杆或其他手术器械之间的气密性。 8, fan-shaped notch in the region of the thin portion of the tapered surface opposing 3-21 3-20 3-28 (which comprises the top edges 3-24), the tapered thin wall portion 3 -21 bottom to the top of the wall thickness tapering from the thick (thickness at the bottom of the thin portion is tapered near its top end at 1.5-3 times), the remainder of the tapered surface of the thin wall portion 3-21 uniform wall thickness and tapered bottom thin portion 3-21, the structure adapted to prevent local doming, facilitate the tapered thin wall portion integrally tightly wrapped around the piercing rod or other surgical instrument, in order to improve the puncture sealing assembly airtightness between the lever or other surgical instrument.

[0042] 所述区域3-28与所述锥面薄壁部3-21的其余部分的厚度过渡是渐变的、平滑的,该结构利于所述锥面薄壁部紧密整体包裹在穿刺杆或其他手术器械上,进一步提高密封组件与穿刺杆或其他手术器械之间的气密性。 [0042] The thickness of the transition region 3-28 and 3-21 rest of the tapered surface of the thin portion is gradual, smooth, this structure facilitates the tapered thin wall portion integrally tightly wrapped in the piercing rod or other surgical instruments, to further improve the airtightness between the seal assembly and the puncturing rod or other surgical instrument.

[0043] 经仿真实验,即便腹腔内外气压差达到8.5KPa,所述密封组件也不存在明显漏气或渗液的情况(即5分钟,腹腔内外压差变化幅度在5%以内)。 [0043] The simulation results, even if the pressure difference inside and outside the abdominal cavity reaches 8.5KPa, there is no case where the seal assembly, or obvious leakage of exudate (i.e., 5 minutes, abdominal external pressure variation width of less than 5%). 在腹腔内外压差达到5KPa,也不存在慢性漏气或渗液的情况(即半小时,腹腔内外压差变化幅度在5%以内)。 5KPa external pressure in the peritoneal cavity to reach, or where chronic leakage of exudate is not present (i.e., a half hour, abdominal external pressure variation width of less than 5%).

[0044] 实施例4 [0044] Example 4

在实施例1或2的基础上,本实施例存在如下变型: On the basis of Example 1 or 2, the present embodiment has the following variations:

如图8,所述锥面薄壁部3-21上,从锥面薄壁部3-21的底部至顶端的壁厚整体由厚逐渐变薄(锥面薄壁部底部的壁厚是临近其顶端处的1.5-3倍),弹性密封件3-2的形状、结构,结合壁厚的渐变方式,适于使相邻贴合的弹性密封件3-2之间的贴合密封更紧密,防止局部隆起而发生漏气或渗液,同时利于所述锥面薄壁部整体更紧密地包裹在穿刺杆或其他手术器械上,以提高密封组件与穿刺杆或其他手术器械之间的气密性。 8, the tapered thin wall portion 3-21, the thickness from the bottom to the top of the thin portion of the tapered surface 3-21 of the overall thickness of the tapering wall thickness of the bottom (near the tapered portion is a thin-walled 1.5-3 times at its tip), the resilient sealing member 3-2 shape, structure, binding mode gradual wall thickness adapted to fit adjacent the resilient seal bonded tighter seal between 3-2 , local doming occurs prevent leakage or exudate, while the tapered thin wall portion integrally facilitate more tightly wrapped around the piercing rod or other surgical instrument, in order to improve the gas between the seal assembly and the puncturing rod or other surgical instrument tightness.

[0045] 经仿真实验,即便腹腔内外气压差达到8.8KPa,所述密封组件也不存在明显漏气或渗液的情况(即5分钟,腹腔内外压差变化幅度在5%以内)。 [0045] The simulation results, even if the pressure difference inside and outside the abdominal cavity reaches 8.8KPa, there is no case where the seal assembly, or obvious leakage of exudate (i.e., 5 minutes, abdominal external pressure variation width of less than 5%). 在腹腔内外压差达到5.2KPa,也不存在慢性漏气或渗液的情况(即半小时,腹腔内外压差变化幅度在5%以内)。 Celiac external pressure reaches 5.2kPa, chronic situation there is no leakage or oozing (i.e. half hour, abdominal external pressure variation width of less than 5%).

[0046] 显然,上述实施例仅仅是为清楚地说明本发明所作的举例,而并非是对本发明的实施方式的限定。 [0046] Clearly, the above-described embodiments are merely to clearly illustrate the present invention made by way of example, and not limiting embodiment of the present invention. 对于所属领域的普通技术人员来说,在上述说明的基础上还可以做出其它不同形式的变化或变动。 Those of ordinary skill in the art, on the basis of the above described variations or changes may be made in various other forms. 这里无需也无法对所有的实施方式予以穷举。 It is unnecessary and can not be exhaustive of all embodiments. 而这些属于本发明的精神所引伸出的显而易见的变化或变动仍处于本发明的保护范围之中。 And obvious variations or variations of the present invention, these are the corollary spirit still in the scope of the present invention.

Claims (10)

1.一种穿刺器,包括密封组件,该密封组件包括多个弹性密封件;各弹性密封件包括:呈圆锥形的锥面薄壁部和连接在该锥面薄壁部底部的环形部;锥面薄壁部上设有扇形缺口,且该扇形缺口的顶端即为所述锥面薄壁部的顶端;其特征在于: 在所述扇形缺口边缘上的至少所述扇形缺口的顶端边缘的壁厚小于所述锥面薄壁部的其余部分; 和/或,所述锥面薄壁部上的至少在与所述扇形缺口相对的区域,从锥面薄壁部底部至顶端的壁厚由厚逐渐变薄。 A trocar assembly includes a seal, the seal assembly comprising a plurality of resilient sealing members; each resilient seal member comprising: a conically tapered thin wall portion and the connecting portion of the bottom annular tapered thin wall portion; a tapered surface is provided on the thin wall portion open sector, and the tip of the fan-shaped notch is the tip of the tapered portion of the thin wall; characterized in that: at least the top edge of the fan-shaped notch on the edge of the open sector the tapered thin wall portion is smaller than the wall thickness of the rest; and / or, at least in the region of the thin portion of the tapered surface of the fan-opposed notches, tapered from the bottom to the top of the wall thickness of the thin portion to gradually thinning from thick.
2.根据权利要求1所述的穿刺器,其特征在于:在所述扇形缺口的外边缘上、或至少在所述顶端的外边缘上具有倒角,以使至少所述顶端边缘的壁厚小于所述锥面薄壁部的其余部分。 The trocar according to claim 1, wherein: on the outer edge of the fan-shaped cutout or chamfered at least on the outer edge of said top end, so that the top edge of the wall thickness of at least It is smaller than the remaining portion of the thin portion of the tapered surface.
3.根据权利要求1所述的穿刺器,其特征在于:所述锥面薄壁部的外壁上设有至少一条与该锥面薄壁部同轴分布的环形加强筋或带,该加强筋或带上在所述扇形缺口处具有相应的缺口。 The trocar according to claim 1, wherein: said tapered outer wall of the thin-walled portion is provided with at least one rib or coaxial with the annular tapered surface profile of the thin wall portion, the bead a fan belt or the notch having a corresponding notch.
4.根据权利要求1所述的穿刺器,其特征在于:所述锥面薄壁部上,从锥面薄壁部底部至顶端的壁厚由厚逐渐变薄。 The trocar according to claim 1, wherein: said tapered surface on the thin-walled portion, the thin wall portion tapered from the bottom to the top of the wall thickness gradually reduced from thick.
5.根据权利要求1所述的穿刺器,其特征在于:各弹性密封件的锥面薄壁部的底部具有不小于180°的圆周,或具有300°到340°的圆周; 所述扇形缺口的顶端边缘呈圆弧形;所述环形部上设有与所述扇形缺口相对的底边缺口;该底边缺口的宽度小于所述扇形缺口的底部宽度,且底边缺口正对所述扇形缺口的中央。 The trocar according to claim 1, wherein: the bottom of each tapered thin portion having a circumferential elastomeric seal is not less than 180 °, or with a circumference of 300 ° to 340 °; the sector notch the top edge of the circular arc; the base is provided with notches on the sector opposite the annular notch portion; base width of the notch is smaller than the width of the bottom of the sector notch, the notch and the bottom edge of the sector n center gap.
6.根据权利要求1-5之一所述的`穿刺器,其特征在于:该穿刺器还包括:套筒组件,所述密封组件设于该套筒组件顶部的壳体中;所述密封组件还包括一对刚性环,各弹性密封件设于该对环之间;各弹性密封件的环形部彼此一起叠成层,以使各弹性密封件的锥面薄壁部形成圆锥形密封件,进而使穿过所述密封组件的手术器械与该密封组件活动密封配合; 所述套筒组件顶部的壳体包括:上下密封配合的转换帽和套筒座;所述密封组件设于转换帽中的工作通道上。 `Puncture according to claim any one of claim 1-5, characterized in that: the piercing device further comprising: a sleeve assembly, the seal assembly disposed in a housing sleeve of the top assembly; said seal assembly further comprises a pair of rigid rings, each of the elastomeric seal disposed between the pair of rings; each annular resilient seal portion with each other folded layers, so that each of the resilient tapered thin portion of the seal member seals a conical , and further through the sealing assembly so that the surgical instrument with the sealing assembly into sealing engagement activity; the top of the sleeve housing assembly comprising: upper and lower sealing engagement with the cap and the sleeve base conversion; converting the seal assembly disposed in the cap on a working channel.
7.根据权利要求6所述的穿刺器,其特征在于:所述套筒座包括:碗状体、纵向连接在该碗状体底部中央且与该碗状体一体的筒体、密封固定在该碗状体顶部的环形盖板,以及设于该碗状体侧壁上的旋塞阀;旋塞阀用于允许和阻止灌注流体通过筒体进入或排出体腔; 所述环形盖板的外侧壁上均匀分布有至少两个用于设置回字形锁扣的安装槽;回字形锁扣的内侧壁上设有弹簧; 所述环形盖板的顶面上分布有与所述安装槽上下贯通的插接口; 所述转换帽的底部向下延伸有多个用于分别插入所述插接口的锁舌,该锁舌的内侧具有锁槽,在该锁舌依次穿过所述插接口、回字形锁扣上的通孔后,在所述弹簧的作用下,所述锁槽固定配合在所述回字形锁扣的通孔中。 The trocar according to claim 6, wherein: said sleeve holder comprising: a bowl, the longitudinal center of the bottom is connected to the bowl and is integral with the cylindrical bowl, the seal is fixed the top of the annular cover plate bowl, the bowl and disposed side wall of the stopcock; cock for allowing and preventing the perfusion fluid through the barrel into or out of a body cavity; outer annular wall of the cover Press evenly distributed latching shaped mounting groove provided for at least two; shaped inner side wall of the back of a spring latch; top surface of the annular cover plate with sockets distributed vertically penetrating the mounting groove ; converting said cap extending down to the bottom for inserting a plurality of sockets in the bolt, the bolt having an inner side of the locking grooves in the bolt passes through the sockets, the latch back to shape after the through hole, under the action of the spring, the locking grooves of the fixing fitting in the through hole in the latch back to shape.
8.根据权利要求7所述的穿刺器,其特征在于:所述套筒座的碗状体内的工作通道上设有阻气阀;该阻气阀包括弹性材料制成的杯体部,该杯体部的底面为平面,该底面中央设有十字形缝; 该杯体部的侧壁上设有分别与所述十字形缝的四个夹角相对的四个弧形槽;所述手术器械适于穿过所述十字形缝,且该杯体部的底面在没有手术器械穿过时适于密封所述工作通道,由此防止通过套针2输送至体腔的灌注气体的泄漏。 8. The lancing device according to claim 7, wherein: said bowl is provided with a choke valve body working channel of the sleeve holder; the choke valve comprises a cup portion made of an elastic material, which the bottom surface of the cup portion is flat, the bottom surface is provided with a central cross-shaped seam; four angle grooves is provided with four arcuate cross-shaped slits are opposed to the upper side wall portion of the cup body; the surgical instrument adapted to pass through the cross-shaped slit, and a bottom surface of the cup portion is adapted to seal the working channel when no surgical instrument is disposed therethrough, thereby preventing the leakage of insufflation gas delivered to the body cavity through the trocar 2.
9.根据权利要求8所述的穿刺器,其特征在于:所述杯体部的顶部具有一体成型的凸缘,该凸缘用于与所述套筒座的环形盖板的中央通孔、以及转换帽的底部密封配合,以使所述转换帽与套筒座上下密封配合;该穿刺器还包括贯穿于所述套筒组件内的穿刺杆,该穿刺杆包括ABS材料的杆体部和连接在该杆体部末端的PC材料的头部。 9. The lancing device according to claim 8, wherein: the top portion of the cup body having integrally formed flange a central through hole for the sleeve and the annular seat cover, and conversion of the cap sealingly engages the bottom, so that the converter housing cap and the sleeve sealingly engages the vertical; the piercer comprises a piercing rod further penetrating to within said sleeve assembly, the piercing rod includes a rod portion connected to the ABS material and PC materials head end portion of the rod member.
10.根据权利要求8所述的穿刺器,其特征在于:所述四个弧形槽中心对称分布,且各弧形槽的深度,自上而下逐渐增大。 10. The lancing device according to claim 8, wherein: said four symmetrically arcuate slot center, and the depth of each groove is arcuate, gradually increases from top to bottom.
CN201310461463.3A 2013-09-30 2013-09-30 Puncture outfit good in sealing property CN103505270B (en)

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PCT/CN2013/087614 WO2014187093A1 (en) 2013-05-24 2013-11-21 Puncture outfit with relatively good sealing performance

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CN105615954A (en) * 2014-11-08 2016-06-01 广州迪克医疗器械有限公司 Puncture outfit comprising silencer
WO2016119310A1 (en) * 2015-01-28 2016-08-04 联合微创医疗器械(深圳)有限公司 Fully separable piercer
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CN106667553A (en) * 2016-12-28 2017-05-17 江苏风和医疗器材股份有限公司 Seal cartridge and puncture outfit with same

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