CN103610520B - A prosthetic heart valve grip device - Google Patents

A prosthetic heart valve grip device Download PDF

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Publication number
CN103610520B
CN103610520B CN201310652679.8A CN201310652679A CN103610520B CN 103610520 B CN103610520 B CN 103610520B CN 201310652679 A CN201310652679 A CN 201310652679A CN 103610520 B CN103610520 B CN 103610520B
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inner core
heart valve
grip
prosthetic heart
catheter
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CN201310652679.8A
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Chinese (zh)
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CN103610520A (en
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张志飞
曾敏
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杭州启明医疗器械有限公司
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Abstract

本发明公开了一种人工心脏瓣膜持握器,包括:导管;第一持握部,与导管相固定;内芯,滑动穿设在导管中,所述内芯的一端为远端,另一端为延伸出导管的近端;导引锥,处在导管外部且与内芯的远端相连;瓣膜固定件,固定在内芯上且邻近所述内芯的远端,所述内芯处于导引锥和瓣膜固定件之间的部位为用于放置人工心脏瓣膜的安装段;限位装置,套设在内芯上,用于内芯与导管之间的滑动定位。 The present invention discloses a prosthetic heart valve grip, comprising: a catheter; a first grip portion, fixed to the catheter; inner core slidably disposed through the catheter, the distal end of the inner core, and the other end extending out of the proximal end of the catheter; guide cone in the outer duct and is connected to the distal end of the inner core; secure the valve member and adjacent the distal end of the inner core, the inner core is secured to the inner core of the guide the lead portion between the valve cone and the fixing member for placing a prosthetic heart valve mounting section; stopper means provided on the inner core sleeve for slidably positioned between the inner core and the catheter. 本发明为径向可压缩的人工心脏瓣膜提供了一种持握器,可单手操作,方便医生将人工心脏瓣膜快速、准确的定位到植入位置。 The present invention provides for a radially compressible grip one kind of prosthetic heart valve, a one-hand, the prosthetic heart valve convenient for doctors to quickly and accurately locate the position of the implant.

Description

一种人工心脏瓣膜持握器 A prosthetic heart valve grip device

技术领域 FIELD

[0001]本发明属于医疗器械领域,尤其涉及一种人工心脏瓣膜持握器。 [0001] The present invention belongs to the field of medical devices, particularly to a prosthetic heart valve gripping device.

背景技术 Background technique

[0002]当患者自身的心脏瓣膜(二尖瓣、三尖瓣、主动脉瓣或肺动脉瓣)由于先天或后天疾病引发变异,造成瓣膜不能正常开闭时,会对健康生活乃至生命造成影响。 [0002] When the patient's own heart valve (mitral, tricuspid, aortic or pulmonary valve) due to congenital or acquired disease caused by mutation, causing the valve can not open and close properly, the healthy living and life will be affected. 心脏瓣膜置换术(即用人工心脏瓣膜进行瓣膜替换)已经成为一种常规的治疗心脏瓣膜病的手术方案。 Heart valve replacement surgery (ie valve replacement with an artificial heart valve) has become a routine treatment of heart valve disease surgery program.

[0003]由于外科手术的技术比较成熟,手术成功率高,外科手术方法治疗心脏瓣膜病仍占很大比例。 [0003] As the surgical technology is relatively mature, the success rate of surgery, surgical methods for the treatment of valvular heart disease still accounts for a large proportion.

[0004]目前采用的外科手术置换的人工心脏瓣膜,多为瓣环为刚性的人工心脏瓣膜(如公开号为CN102883684A的中国专利文献所涉及的人工心脏瓣膜),该类瓣膜在应用时配套的持握器600见附图11,包括在仪器近端处的手柄610、致动器以及在仪器远端处的持瓣器630,持瓣器630和手柄610之间通过杆620连接。 [0004] The currently used surgical prosthetic heart valve replacement, annulus mostly rigid prosthetic heart valve (such as artificial heart valves Publication No. CN102883684A Chinese patent document relates), such support in the application of the valve grip 600 see FIG. 11, the instrument includes a handle 610 at the proximal end, the actuator and the valve holder at the distal end of the instrument 630, the flap 630 between holder 610 and the handle 620 connected by a rod. 持瓣器630包括中心毂和从多个中心毂延伸的角度上间隔的支柱部分632a、632b和632c,支柱部分将瓣膜100固定。 Flap holder 630 includes a central hub and a strut portion 632a from a plurality of angularly spaced central hub extension, 632b and 632c, the valve 100 is fixed to the pillar portion.

[0005]但由于人工心脏瓣膜的型号是有限,而患者因不同年龄段、不同体重、不同病变形态的造成瓣膜需求差异大。 [0005] However, due to the artificial heart valve model is limited, due to the different ages, different body weight, resulting in different forms of disease in patients with valvular large differences in demand. 因此,在针对无法匹配的情况下,,医生通常选择略大于原瓣周的人工心脏瓣膜,然而随之而来的问题是,瓣环撕裂的风险。 Therefore, in the case can not be matched against ,, doctors usually choose slightly larger than the original Paravalvular artificial heart valves, but the attendant problem is that the risk of tearing of the annulus. 针对上述问题,图1示出了一种改进的可应用于外科手术的人工心脏瓣膜的瓣膜支架,包括瓣叶及支撑瓣叶的瓣膜支架,其中瓣膜支架为可呈镂空状的自膨式弹性支架,瓣膜支架在对应瓣叶的位置处设置U形开口,U形开口下部设有带有缝合部431的缝合缘43 ο该缝合缘43可以为半工型缝合缘,材质可以为遇水膨胀性材料。 For the above problem, Figure 1 shows an improved surgical procedure may be applied to the prosthetic heart valve stent valve, comprising a valve leaflet and the support bracket leaflets, wherein the valve support is a hollow shape may be in the self-expanding resilient stent, stent-valve disposed U-shaped opening, U-shaped opening having a lower edge provided with suture 43 o sewn portion 431 of the suturing rim half 43 may be sewn isoform at a position corresponding edge flap, the material can be expanded into contact with water material. 该专利通过在瓣膜支架的外壁设置缝合缘,有效的解决了现有外科手术植入的人工心脏瓣膜的瓣环为刚性结构,型号有限等于患者心脏瓣环大小不一、形状各异的矛盾,同时自膨胀式支架具有随身体的成长,慢性扩张,自行适应的特性。 Which is incorporated by valve support is provided in the outer wall edge stitching, effectively solves surgically implanted prosthetic heart valve annulus is a rigid structure equivalent to model a patient's heart valve annulus limited sizes, shapes contradiction, while self-expanding stents have growth characteristics vary, chronic physical expansion, self-adaptation. 然而目前未见适用于该类(径向可压缩的)人工心脏瓣膜的持握装置。 However, there is no applicable to the category (radially compressible) prosthetic heart valve gripping means.

发明内容 SUMMARY

[0006]本发明为径向可压缩的外科人工心脏瓣膜提供了一种持握器,方便医生快速、准确的将人工心脏瓣膜定位到植入位点。 [0006] The present invention provides a gripping device, convenient for doctors to quickly and accurately locate the prosthetic heart valve to an implantation site is a radially compressible surgical prosthetic heart valve.

[0007] —种人工心脏瓣膜持握器,包括: [0007] - kind of artificial heart valves grip, comprising:

[0008]导管; [0008] The catheter;

[0009]第一持握部,与导管相固定; [0009] The first grip portion, and fixed to the catheter;

[0010]内芯,滑动穿设在导管中,所述内芯的一端为远端,另一端为延伸出导管的近端; [0010] core, slidably disposed in the catheter through the end of the distal end of the inner core, the other end extending out of the proximal end of the catheter;

[0011]导引锥,处在导管外部且与内芯的远端相连; [0011] The guide cone in the outer duct and is connected to the distal end of the inner core;

[0012]瓣膜固定件,固定在内芯上且邻近所述内芯的远端,所述内芯处于导引锥和瓣膜固定件之间的部位为用于放置人工心脏瓣膜的安装段; [0012] fixing the valve member fixed to the inner core and the distal end adjacent to said inner core, said inner core is between the guide portion and the valve cone fixture mounting section for placing a prosthetic heart valve;

[0013]限位装置,套设在内芯上,用于内芯与导管之间的滑动定位。 [0013] The stopper means, the inner sleeve is provided on the core for slidably positioned between the inner core and the catheter.

[0014]本发明中,人工心脏瓣膜套装在内芯的安装段,并与瓣膜固定件相固定,而导管则将人工心脏瓣膜压缩、包裹,导管可相对于内芯进行滑动,以实现对人工心脏瓣膜进行安装、回收、释放,其滑动的行为可通过控制第一持握部的运动来完成,若需对导管的位置进行固定,则可控制限位装置即可。 [0014] In the present invention, the prosthetic heart valve mounting segment set of the inner core, and the valve is fixed with the fixing member, the prosthetic heart valve catheter will be compressed, wrapped, the catheter may be slid relative to the inner core, in order to achieve artificial heart valve installation, recycling, release, their behavior may be slidably supported by first movement control grip portion to complete, for fixing the position of the catheter, the device may be controlled to stop. 所述的人工心脏瓣膜可为任何径向可压缩的人工心脏瓣膜。 The prosthetic heart valve may be radially compressible for any prosthetic heart valve.

[0015]作为优选,所述的人工心脏瓣膜持握器还包括固定在所述内芯的近端的第二持握部。 [0015] Advantageously, the prosthetic heart valve further comprises a second grip grip portion fixed to the proximal end of the inner core. 第二持握部能够为手的操作提供着力点,方便医生手持人工心脏瓣膜持握器,并将人工心脏瓣膜推送至植入位点。 A second grip portion for the hand of the operator to provide the focal point, convenient for doctors to hand grip is a prosthetic heart valve, artificial heart valves and push the implant site.

[0016]为便于手术时向患者体内注入生理盐水或者其他药剂,所述内芯开设有沿轴向的通道,所述导引锥沿内芯的轴向开设有与该通道连通的孔道,所述第二持握部开设有与所述通道相连通的注液孔。 [0016] When the injection is to facilitate the surgical patient physiological saline or other agent, the inner core defines a passage in the axial direction, the guide cone axially along the inner core defines a passage communicating with the bore, the said second grip portion defines the injection holes communicating with said channel.

[0017]作为优选,所述第一持握部为固定在导管端口处的套筒,该套筒的外壁设有两个持握柄。 [0017] Advantageously, the first grip portion to be secured to the catheter port of the sleeve outer wall is provided with two holding grip. 在释放人工心脏瓣膜时,手持第一持握部使导管向远离导引锥的方向移动即可,而设置两个持握柄,方便手的持握和操作,同时两个持握柄也保证了移动时导管的稳定性。 Upon release of a prosthetic heart valve, a first hand grip portion of the catheter to move in a direction away from the guide cone, and the two holding handle is provided, to facilitate gripping and operation of the hand while holding the grip also ensures two stability when moving the catheter.

[0018]作为优选,所述的限位装置包括: [0018] Advantageously, said limiting means comprising:

[0019]设于所述套筒与内芯之间的密封圈; [0019] The seal ring disposed between the sleeve and the inner core;

[0020]与所述套筒螺纹配合的锁紧件,锁紧件处在套筒内的部分与所述密封圈抵靠。 [0020] The locking member with said mating threaded sleeve, the locking member is in the inner portion of the sleeve against the sealing ring. 锁紧件与套筒螺纹配合,旋动锁紧件使锁紧件挤压密封圈,密封圈受到挤压后发生形变,密封住套筒与内芯之间的间隙,阻挡套筒也就阻挡了导管发生移动,实现限位的作用。 The locking member threadedly engaged with the sleeve, the locking member rotating member pressing the locking ring, the sealing ring is deformed after being squeezed, seal the gap between the inner core and the sleeve, the sleeve will blocking barrier moves the catheter, to achieve the effect of limiting.

[0021]作为优选,所述套筒内壁设有用于放置密封圈的环形台阶。 [0021] Advantageously, the inner wall of the sleeve is provided with an annular seal ring for placement step. 环形台阶使密封圈的位置更加稳固,避免锁紧件挤压时,密封圈发生滑动。 The position of the stepped annular sealing ring more firmly to prevent the locking member when pressing the sealing ring from sliding.

[0022]作为优选,所述锁紧件处在套筒外的部分带有若干防滑筋。 [0022] Advantageously, the locking member is in the portion of the outer sleeve with a number of non-slip ribs. 防滑筋增加了锁紧件的表面摩擦力,避免人手旋转锁紧件时发生滑动。 Slip ribs increase the surface friction of the locking member to prevent rotation of the slide occurs when the manual lock member.

[0023]所述导管与内芯之间具有环形空间,所述套筒开设有一个与该环形空间的空间相通的排气孔。 Between the catheter and the inner core [0023] having an annular space, the sleeve defines a space communicating with the annular vent space. 通过该排气孔可排出人工心脏瓣膜部位的空气。 This can be discharged through the air vent portion of the prosthetic heart valve.

[0024]为更利于空气的排出,进一步的,所述瓣膜固定件沿导管轴向开设有多个通孔。 [0024] is more conducive to the discharge of air further, fixing the valve member in the axial direction of the catheter defines a plurality of through-holes.

[0025]作为优选,所述导管临近导引锥的一端沿轴向设有多条开口槽。 [0025] Advantageously, one end of the guide catheter near the opening cone is provided with a plurality of grooves in the axial direction. 外科手术时,多根缝线的一端被固定在人工心脏瓣膜的缝合环,然后将缝线的另一端(即自由端)通过切口,缝制在自体瓣环,拉动缝线的自由端使人工心脏瓣膜靠在自体瓣环上。 The time of surgery, one end of the plurality of sutures in the sewing ring is fixed to the prosthetic heart valve, and the other end of the suture (i.e., free end) through the notch, sewing the free end of autologous annulus, so that pulling of the suture artificial since the body against heart valve annulus. 而通过在导管临近导引锥的一端设置开口槽,可将人工心脏瓣膜的缝线的自由端从开口槽引出,避免了人工心脏瓣膜的干扰,方便医生进行缝制,且可避免缝线之间相互缠绕。 Provided at one end through the guide catheter near the cone opening groove, the free end of the suture may be an artificial heart valve from the opening groove leads, to avoid the interference of the prosthetic heart valve, convenient for doctors to be sewn, and the suture can be avoided between intertwined.

[0026]进一步优选的,所有的开口槽沿所述导管的周向均匀分布。 [0026] Further preferably, all along the pipe circumferential groove opening to a uniform distribution.

[0027]作为优选,所述开口槽为3〜6条;进一步优选的,所述开口槽为3〜6条;更优选的,所述开口槽为3条。 [0027] Advantageously, the slot opening is 3 ~ 6 bar; more preferably, the opening is a slot 3 ~ 6 bar; more preferably, the opening is a slot 3. 减少瓣膜缝制时的针数,缩短手术操作的时间,同时也不影响人工心脏瓣膜定位的牢固性。 When the needle valve to reduce the number of sewing, to shorten the time of the surgical procedure, while not affecting the robustness positioned prosthetic heart valve.

[0028]与现有技术相比,本发明的有益效果为: [0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029]本发明为径向可压缩的外科心脏瓣膜(如本发明图1所示的人工心脏瓣膜)提供了一种持握装置,人工心脏瓣膜被压缩到本发明的持握器后,人工心脏瓣膜在术中预释放、调整、定位过程中对医生的视线阻挡作用大大降低,有利于人工心脏瓣膜快速、准确的输送至植入最佳定位点。 [0029] The present invention provides an apparatus for holding grip radially compressible cardiac valve surgery (e.g., prosthetic heart valve shown in FIG. 1 of the present invention), an artificial heart valve to be compressed to grip the present invention, the artificial heart valve surgery in pre-release, to adjust the positioning of the doctor's attention during the blocking effect is greatly reduced, in favor of artificial heart valves fast and accurate delivery to the optimal positioning of the implant site.

[0030]本发明人工心脏瓣膜持握器通过在导管上设置开口槽,方便医生进行缝制。 Invention is a prosthetic heart valve through the grip opening groove disposed on the catheter, convenient for doctors to be sewn [0030] present.

[0031]本发明人工心脏瓣膜持握器结构简单,控制方便,允许医生单手进行操作。 [0031] The present invention is a prosthetic heart valve grip simple structure, easy to control, allows the physician to operate with one hand.

附图说明 BRIEF DESCRIPTION

[0032]图1为现有技术中用于外科手术的人工心脏瓣膜的结构示意图。 [0032] FIG. 1 is a schematic diagram for surgical prosthetic heart valve of the prior art structure.

[0033]图2为本发明人工心脏瓣膜持握器的爆炸图。 [0033] FIG. 2 is an exploded view of a prosthetic heart valve gripping device of the present invention.

[0034]图3为本发明人工心脏瓣膜持握器的结构示意图。 [0034] FIG. 3 is a schematic structural diagram of an artificial heart valve of the present invention the gripping device.

[0035]图4为本发明人工心脏瓣膜持握器中导管移动至某一状态的结构示意图。 [0035] Fig 4 a schematic view of the structure of a prosthetic heart valve holder is moved to a certain state of the catheter holding the present invention.

[0036]图5为图4所示的人工心脏瓣膜持握器的剖面图。 [0036] FIG. 5 is a prosthetic heart valve shown in FIG. 4 is a sectional view of the gripping device.

[0037]图6为本发明人工心脏瓣膜持握器中导管移动至另一状态的结构示意图。 [0037] Fig 6 a schematic view of the structure of the prosthetic heart valve in the conduit holder is moved to another state of the holding of the present invention.

[0038]图7为图6所示的人工心脏瓣膜持握器的剖视图。 [0038] FIG. 7 is shown in FIG. 6 a cross-sectional view of a prosthetic heart valve's grip.

[0039]图8为人工心脏瓣膜装载入本发明人工心脏瓣膜持握器的结构示意图。 [0039] FIG 8 is loaded into the prosthetic heart valve prosthesis of the present structural diagram of the gripping device of the present invention.

[0040]图9为杂交手术时本发明人工心脏瓣膜持握器穿过心脏切口的结构示意图。 The present invention is a schematic structural diagram grip cut through the heart when the heart valve prosthesis [0040] FIG. 9 is a hybridization procedure.

[0041]图10为杂交手术时本发明人工心脏瓣膜持握器释放人工心脏瓣膜的结构示意图。 The present invention is a schematic structural diagram grip release the prosthetic heart valve prosthetic heart valve during [0041] FIG. 10 is a hybrid operation.

[0042]图11为现有的一种人工心脏瓣膜的持握器的结构示意图。 [0042] FIG. 11 is a schematic diagram of the structure of a conventional grip is a prosthetic heart valve.

[0043]其中,1、导管;2、导引锥;3、安装段;4、瓣膜固定件;5、套筒;6、持握柄;7、锁紧件; [0043] wherein 1, catheter; 2, the guide cone; 3, mounting section; 4, the valve holder; 5, the sleeve; 6, holding the handle; 7, the locking member;

8、第二持握部;9、内芯;10、通孔;11、开口槽;12、排气孔;13、注液孔;14、防滑筋;15、通道;16、孔道;17、定位槽;18、持握环;19、环形台阶;20、密封圈;21、缝线;22、瓣环;23、自由端;24、人工心脏瓣膜。 8, the second grip portion; 9, the inner core; 10, a through hole; 11, opening groove; 12, vent hole; 13, injection hole; 14, anti-skid ribs; 15, passage; 16, channel; 17, positioning groove; 18, grip ring; 19, annular step; 20, seals; 21, suture; 22, annulus; 23, a free end; 24, prosthetic heart valve.

具体实施方式 Detailed ways

[0044]下面结合具体实施例对本发明作进一步阐释。 [0044] The following specific examples in conjunction with the present invention will be further explained.

[0045]如图2、图3所示,本发明人工心脏瓣膜持握器(以下简称为持握器)包括导管1、套筒5、内芯9、导引锥2、瓣膜固定件4、限位装置和第二持握部8。 [0045] As shown in FIG 2, FIG. 3, the present invention is a prosthetic heart valve grip (hereinafter simply referred to as grip device) includes a catheter 1, the sleeve 5, the inner core 9, a guide cone 2, the valve member 4 is fixed, limiting means 8 and the second grip portion.

[0046]内芯9滑动穿射在导管I中,该内芯9呈圆柱状,具有沿轴向的通道15,圆柱状的内芯9外表面平滑,使得内芯9与导管I之间的相对运动更加灵活,方便人工心脏瓣膜的释放和回收,内芯的材料没有特殊要求,可以为金属、塑料等符合医疗器械要求的材料,但应具备一定的硬度,保证其基本的推送力。 [0046] The slide core 9 in the conduit through radio I, the core 9 is cylindrical, having a 15, a cylindrical outer surface of the inner core 9 along the axial smooth passage 9 such that between the inner core and the catheter I the relative movement is more flexible, easy to release and retrieval of a prosthetic heart valve, the inner core material is no special requirements, the medical device may be a material meets the requirements of metal, plastic or the like, but should have a certain hardness to ensure basic push force. 内芯9的一端为远端(即操作时,邻近瓣膜植入位点的一端),另一端为延伸出导管I的近端(操作时,远离瓣膜植入位点的一端)。 One end of the distal end of the core 9 (i.e. operation, valve implantation site near one end), and the other end extending out of the proximal end of the catheter I (the operation, one end of the valve remote from the implantation site).

[0047]导引锥2处在导管I的外部且与内芯9的远端相固定,手术时,导引锥2引导输送装置穿过伤口到达瓣膜植入位点。 [0047] The guide cone 2 at the outside of the conduit I and is fixed to the distal end of the inner core 9, when the surgical guide cone 2 through the guide conveyor means wound reaches valve implantation site. 导引锥2具有沿内芯9轴向的孔道16,该孔道16与内芯9的通道15相连通。 2 guide cone 9 having a bore 16 along the axial direction of the inner core, the inner passage 16 of the bore 15 is connected through the core 9.

[0048]瓣膜固定件4固定在内芯9上且邻近内芯9的远端,内芯9处于瓣膜固定件4和导引锥2之间的部分为安装段3,当人工心脏瓣膜装载完毕后,人工心脏瓣膜处于内芯9的安装段 [0048] The valve 4 is fixed to the fixing member 9 and the inner core near the distal end of the inner core 9, the valve 9 is fixed to the inner core and the guide member 4 between the tapered portion 3 of the installation section, when the completion of the loading prosthetic heart valve after the heart valve prosthesis is mounted inside the core section 9

3。 3. 瓣膜固定件4一端的外壁带有与人工心脏瓣膜相配合的定位槽17,用于固定人工心脏瓣膜,瓣膜固定件4沿导管I的轴向还开设有五个通孔1。 Fixing an outer wall of the valve member 4 having one end engaged with the prosthetic heart valve positioning groove 17 for fixing a prosthetic heart valve, the valve member is fixed axially along the conduit 4 I further defines a through hole five.

[0049]第二持握部8与内芯9的近端相固定,该第二持握部8带有一个持握环18,便于手持握、操作。 [0049] The second gripping portion 8 fixed to the proximal end of the inner core 9, the second grip portion 8 is provided with a grip ring 18, hand grip to facilitate the operation. 第二持握部8还开设有一个注液孔13,该注液孔13与内芯9的通道15相连通,通过该注液孔13可以向患者体内注入生理盐水等试剂。 A second grip portion 8 is also provided with a liquid injection hole 13, the passage of the injection hole 13 and the inner core 15 communicates 9, 13, saline may be injected into the patient through the reagent injection hole.

[0050]导管I可相对于内芯9相对滑动,对人工心脏瓣膜进行释放和回收,导管9邻近导引锥2的一端沿轴向设有三条开口槽11,这三条开口槽11在导管I的周向上均匀分布,导管I另一端的端口处固定有套筒5,该套筒5的外壁设有两个持握柄6,持握柄呈圆弧形,便于手操作,当然,持握柄也可以为环形等。 [0050] I with respect to the catheter inner core 9 relative sliding of the heart valve prosthesis to be released and recovered, 9 adjacent the end of the conduit 2 is provided with three tapered guide groove 11 opening axially opening groove 11 in which three conduits I circumferential direction evenly distributed, at the other end of the conduit port I 5 is fixed to the sleeve, the outer wall of the sleeve 5 is provided with two holding grip 6, a circular arc holding grip, to facilitate hand operation, of course, grip shank also be a ring-shaped and so on. 导管与内芯之间具有环形空间,套筒开设有一个与该环形空间相通的排气孔12,由于瓣膜固定件带有通孔,因此通过该排气孔可排出人工心脏瓣膜部位的空气。 An annular space between the duct and the inner core, the sleeve defines an annular space communicating with the vent hole 12, since the valve member is fixed with through holes, so the air can be discharged through the artificial heart valve of the exhaust hole portion. 该套筒5的内壁还设有一个环形台阶19。 Inner wall of the sleeve 5 is also provided with an annular step 19.

[0051 ]限位装置包括密封圈20和锁紧件7,其中密封圈20套设在内芯9上并处于套筒5的环形台阶19部位。 [0051] The stop means comprises a seal ring 20 and locking member 7, wherein the seal ring 20 is sleeved on the inner core 9 and the sleeve 5 is an annular stepped portion 19. 锁紧件7也套设在内芯9上,锁紧件7的一端伸入套筒5,与套筒5螺纹配合,该锁紧件7伸入套筒5的一端与密封圈20相抵靠,锁紧件7的另一端延伸出套筒5,其处于套筒5外的部分带有若干条防滑筋14。 The locking member 7 is also sleeved on the inner core 9, the locking member 7 extends into an end of the sleeve 5, the sleeve 5 is screwed, the locking member 7 projects into one end of the sleeve 5 and the seal ring 20 abuts against the other end of the locking member 7 extends out of the sleeve 5, in which the outer sleeve part 5 with anti-slip ribs 14 several pieces.

[0052]以外科手术为例进行具体说明。 [0052] In the specific example described surgical procedure. 术时,先将人工心脏瓣膜(人工心脏瓣膜装载前,将三根缝线的一端固定在人工心脏瓣膜上,如固定在图1中所示的缝合部431)装载在输送装置上,首先,旋松锁紧件,拉动套筒的持握柄向远离导引锥的方向移动,此时导管在套筒的带动下向远离导引锥的方向滑动(图4、图5),露出瓣膜固件后(图6、图7),将人工心脏瓣膜套装在内芯的安装段,并使其与瓣膜固定件固定,然后再推动套筒的持握柄使导管复位,导管将人工心脏瓣膜压缩并将其完全包裹,此时,旋紧锁紧件,锁紧件抵紧密封圈,密封圈发生形变,密封住套筒与内芯之间的间隙,从而阻止套筒、导管发生移动,达到限位的作用。 (Sewn portion prosthetic heart valve prior to loading, the three suture end is fixed to the prosthetic heart valve is fixed as shown in FIG. 1 431) during operation, the first prosthetic heart valve mounted on the conveying means, first of all, a spin after the loose locking member, the handle holding sleeve is pulled in a direction away from the movement of the guide cone, then the catheter sleeve slidably driven in a direction away from the guide cone (FIG. 4, FIG. 5), the valve is exposed firmware (FIG. 6, FIG. 7), the heart valve prosthesis including a core set of mounting section, and the fixing member to secure it to the valve, and then push the catheter handle holding sleeve is reset, the prosthetic heart valve compressing the conduit and completely wrapped, case, tightening the locking member, the locking member tightly against the sealing ring, the sealing ring is deformed, sealing the gap between the sleeve and the inner core, thereby preventing the sleeve, catheter moved, to limit role. 图8显示了人工心脏瓣膜装载入本发明人工心脏瓣膜持握器的结构示意图,人工心脏瓣膜上的三根缝线从导管的开口槽引出(图中仅示意两根)。 Figure 8 shows the loading into the prosthetic heart valve prosthesis of the present structural diagram of the gripping device of the present invention, three sutures from the prosthetic heart valve conduits lead-out opening groove (only two shown schematically).

[0053]装载完成后,将人工心脏瓣膜的缝线穿过手术切口缝制到自体瓣环上,手持持握器的持握环,推送导引锥穿过手术切口,使人工心脏瓣膜部位到达植入位点后,旋松锁紧件,拉动套筒的持握柄向远离导引锥的方向缓慢移动,此时导管在套筒的带动下向远离导引锥的方向滑动,人工心脏瓣膜被逐渐的释放,同时适时的拉动缝线的自由端使人工心脏瓣膜固定在自体瓣环处,最后将持握器移出患者体内。 [0053] After loading was completed, the prosthetic heart valve sewing suture through the incision into the native valve ring, the hand holding the gripping device grip ring, the push guide cone through the surgical incision, so that the prosthetic heart valve reaches the site after the implantation site, unscrewing the locking member, the handle holding sleeve is pulled in a direction away from the guide cone moves slowly, when the guide catheter to slide away from the drive cone in the sleeve, the prosthetic heart valve It is gradually released, while pulling the free end of the suture timely so that the prosthetic heart valve annulus at a fixed autologous grip is removed and finally the patient.

[0054]本发明为径向可压缩的人工心脏瓣膜提供了一种持握装置,特别适用于外科手术中,将人工心脏瓣膜压缩在持握器中,不需要直接手持人工心脏瓣膜进行操作,且能够避免人工心脏瓣膜对医生视线的遮挡。 [0054] The present invention provides for a radially compressible prosthesis of one kind gripping device, particularly suitable for surgery, the heart valve prosthesis is compressed in the grip, the prosthetic heart valve without direct hand operation, avoid artificial heart valves and can block the line of sight of the doctor. 另外,在手术过程中,对持握器的推送、回收以及人工心脏瓣膜的释放均可单手控制持握器完成,易于操作,控制方便。 Further, during the procedure, for pushing, recovering and releasing a prosthetic heart valve of the gripping device can grip with one hand control to complete, easy to operate, easy to control. 当然,本发明的人工心脏瓣膜持握器也可应用于手术路径较短的经升主动脉进入的杂交手术中,图9、图10示意了杂交手术中本发明人工心脏瓣膜持握器穿过心脏切口以及释放人工心脏瓣膜的结构示意图,应用于杂交手术时,本发明的人工心脏瓣膜持握器中导管可不需设置开口槽。 Of course, the prosthetic heart valve according to the present invention can also be applied to grip a shorter path through the ascending aorta into the surgical hybridization procedure, FIG. 9, FIG. 10 illustrates a prosthetic heart valve surgery hybrid device of the present invention through the grip cardiac incision and release a schematic structural diagram of an artificial heart valve, is applied to hybridization procedures, prosthetic heart valve according to the present invention, the conduit gripping device may be provided without an open slot.

Claims (8)

1.一种人工心脏瓣膜持握器,其特征在于,包括: 导管,导管邻近瓣膜植入位点的一端为远端; 第一持握部,该第一持握部为固定在导管端口处的套筒,套筒的外壁设有两个持握柄,两个持握柄均朝向导管的远端弯曲; 内芯,滑动穿设在导管中,所述内芯的一端为远端,另一端为延伸出导管的近端; 导引锥,处在导管外部且与内芯的远端相连; 瓣膜固定件,固定在内芯上且邻近所述内芯的远端,所述内芯处于导引锥和瓣膜固定件之间的部位为用于放置人工心脏瓣膜的安装段; 限位装置,套设在内芯上,用于内芯与导管之间的滑动定位; 第二持握部,与所述内芯的近端相固定,第二持握部带有一个持握环。 CLAIMS 1. A heart valve prosthesis grip, characterized in that, comprising: a catheter, adjacent the end of the conduit valve implant site is distal end; a first gripping portion, the first grip portion is fixed to the catheter at a port a sleeve, the outer wall of the sleeve is provided with two holding grip, the grip holding two are curved toward the distal end of the catheter; inner core slidably disposed through the catheter, the distal end of the inner core, the other one end extending out the proximal end of the catheter; guide cone in the outer duct and is connected to the distal end of the inner core; stationary valve member, and adjacent to the distal end of the inner core fixed inner core, the inner core is in between the guide portion and the valve cone fixture mounting section for placing a prosthetic heart valve; stopper means provided on the inner core sleeve for slidably positioned between the inner core and the conduit; the second grip portion , the proximal end of the inner core is fixed, the second gripping portion having a gripping ring.
2.如权利要求1所述的人工心脏瓣膜持握器,其特征在于,所述内芯开设有沿轴向的通道,所述导引锥沿内芯的轴向开设有与该通道连通的孔道,所述第二持握部开设有与所述通道相连通的注液孔。 2. The prosthetic heart valve according to claim 1 grip device, wherein the inner core defines an axial passageway along the guide cone axially along the inner core defines a passage in communication with the channel, the grip portion defines a second injection hole communicating with said channel.
3.如权利要求2所述的人工心脏瓣膜持握器,其特征在于,所述的限位装置包括: 设于所述套筒与内芯之间的密封圈; 与所述套筒螺纹配合的锁紧件,锁紧件处在套筒内的部分与所述密封圈抵靠。 3. The prosthetic heart valve according to claim 2 grip, characterized in that said limiting means comprising: a seal ring disposed between the sleeve and the inner core; with the threaded sleeve the locking member, the locking member is in the inner portion of the sleeve abuts against the sealing ring.
4.如权利要求3所述的人工心脏瓣膜持握器,其特征在于,所述套筒内壁设有用于放置密封圈的环形台阶。 4. A prosthetic heart valve according to claim 3 grip, characterized in that the inner wall of the sleeve is provided with an annular seal ring for placement step.
5.如权利要求3或4所述的人工心脏瓣膜持握器,其特征在于,所述锁紧件处在套筒外的部分带有若干防滑筋。 5. A prosthetic heart valve according to claim 3 or claim 4 grip, characterized in that the locking member is in the portion of the outer sleeve with a number of non-slip ribs.
6.如权利要求1所述的人工心脏瓣膜持握器,其特征在于,所述瓣膜固定件沿导管轴向开设有多个通孔。 The prosthetic heart valve as claimed in claim 1, grip, characterized in that the valve member defines a plurality of fixing holes in the axial direction through the conduit.
7.如权利要求1所述的人工心脏瓣膜持握器,其特征在于,所述导管临近导引锥的一端沿轴向设有多条开口槽。 7. A prosthetic heart valve according to claim 1 grip, characterized in that one end of the guide catheter near the opening cone is provided with a plurality of grooves in the axial direction.
8.如权利要求7所述的人工心脏瓣膜持握器,其特征在于,所述开口槽为3〜6条。 The prosthetic heart valve as claimed in claim 7, grip, characterized in that the opening groove is 3 ~ 6 bar.
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