CN102294057A - Left ventricular assist blood pump - Google Patents

Left ventricular assist blood pump Download PDF

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Publication number
CN102294057A
CN102294057A CN2011102553617A CN201110255361A CN102294057A CN 102294057 A CN102294057 A CN 102294057A CN 2011102553617 A CN2011102553617 A CN 2011102553617A CN 201110255361 A CN201110255361 A CN 201110255361A CN 102294057 A CN102294057 A CN 102294057A
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blood pump
slide
groove
provided
left ventricular
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CN2011102553617A
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Chinese (zh)
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CN102294057B (en
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吴文广
姚凌飞
张亦柯
杨朋
王玉
陈琛
马云善
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苏州同心医疗器械有限公司
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Abstract

The invention discloses a left ventricle auxiliary blood pump, which comprises a cardiac apex sleevelet and a blood pump body fixedly connected with the cardiac apex sleevelet, wherein the cardiac apex sleevelet comprises a suture ring and a flexible skirt edge which is sleeved at the periphery of the suture ring; the suture ring comprises a suture ring inner hole and a convex edge which is convexly arranged in the radial direction; the blood pump body comprises an inlet pipe; the inlet pipe is convexly arranged on a rear cover of the blood pump body; a peripheral ring slot is formed between the convex edge and the flexible skirt edge; a sliding sheet which can only move in the radial direction relative to the blood pump body is arranged on the rear cover of the blood pump body and is stretched into the peripheral ring slot in a movable way; the convex edge is positioned between the sliding sheet and the bottom surface of a settling tank; and the cardiac apex sleevelet and the blood pump body are relatively axially fixed. In the invention, the sliding sheet is used for fixing the cardiac apex sleevelet and the blood pump, so that the cardiac apex sleevelet can be more conveniently and reliably connected with the blood pump; simultaneously, the axial dimension of the inlet pipe of the blood pump is reduced, so that the implantation of the left ventricle auxiliary blood pump in a pleural cavity is facilitated without damages to a diaphragm, and the success rate of a surgery is greatly improved.

Description

左心室辅助血泵 Left ventricular assist blood pump

技术领域 FIELD

[0001] 本发明涉及一种左心室辅助血泵,尤其涉及一种左心室辅助泵与心脏的连接结构,属于医疗器械技术领域。 [0001] The present invention relates to a left ventricular assist blood pump, more particularly to a left ventricular assist pump is connected to the structure of the heart, a medical instrument technical field.

背景技术 Background technique

[0002] 左心室辅助血泵,其入口端连接在心脏心尖位置,出口接驳到动脉血管上。 [0002] The left ventricular assist blood pump, an inlet end connected to the apex of the heart position, the outlet connected to the artery. 心脏与动脉血管接驳位置均位于胸腔。 The heart and arteries connection points are located in the chest. 胸腔与腹腔之间有一层膈肌。 A layer of diaphragm between the chest and the abdomen. 膈肌又称为呼吸肌,膈肌下降,胸腔容积扩大,以助吸气;松弛时膈肌上升恢复原位,胸腔容积减少,以助呼气。 Also known as diaphragmatic breathing muscle, the diaphragm down, to expand the volume of the chest to help inhale; diaphragm up slack back into place, reducing the volume of the chest to help breath. 膈肌的另一个作用,是将胸腔与腹腔隔开,膈肌自身是不透水的。 Another function of the diaphragm is spaced from the chest and abdominal cavity, the diaphragm itself is watertight.

[0003] 采用磁悬浮技术的左心室辅助血泵,其对血液的破坏最小,由于理论上不存在机械磨损,因此耐久性好。 [0003] The magnetic levitation technologies left ventricular assist blood pump, which minimize damage to the blood, because theoretically no mechanical wear, and therefore good durability. 但是磁悬浮结构复杂,导致泵体尺寸偏大,因此只能植入腹腔。 However, magnetic levitation complex structure, leading to the pump size is too large, it can only implanted intraperitoneally. 现有产品有WorldHeart公司的Levacor,TERUMO公司的DuraHeart等,均是植入到腹腔。 Existing products WorldHeart's Levacor, TERUMO DuraHeart companies, are implanted into the peritoneal cavity.

[0004] 而将血泵植入到腹腔时,手术要开胸腔和腹腔,将不可避免地要在膈肌上穿孔,且要保证穿孔处不渗水,大幅增加了手术难度。 [0004] When the blood pump implanted in the abdominal cavity, chest and abdominal surgery to open, will inevitably have to perforate the diaphragm, and to ensure that the perforation impermeable, substantially increased difficulty of operation. 术后由于膈肌随着呼吸上下往复,穿孔处易出问题,甚至撕裂膈肌。 Because after diaphragmatic breathing as the back and forth up and down, perforation easy to go wrong, even torn diaphragm. 大大增加了术后并发症。 Greatly increased postoperative complications. 综上,将血泵植入腹腔,对医生和术后护理提出了很高的要求,且不利于受者康复。 To sum up, the blood pump implanted in the abdominal cavity, doctors and post-operative care put forward a very high demand, and not conducive to rehabilitation of the recipient.

[0005] 血泵的整体尺寸,除了泵本体尺寸,还包括入口和出口尺寸。 [0005] The overall size of the blood pump, in addition to the size of the pump body, further comprising an inlet and an outlet size. 血泵的入口位于心脏与泵体之间,其尺寸就直接关系到血泵能否被植入胸腔。 An inlet located in the heart and the blood pump between the pump body, which is directly related to the size of the blood pump can be implanted in the chest.

[0006] 血泵的植入位置在心脏下方,膈肌上方,尺寸过大会同时压迫心脏与膈肌,不仅影响心脏康复,同时会影响到正常的呼吸功能,甚至引起其他并发症的出现。 [0006] implanted blood pump location in the heart below the top of the diaphragm, the size of oppression over the General Assembly at the same time the heart and diaphragm, not only affects the cardiac rehabilitation, and it will affect the normal respiratory function, and even cause other complications arise.

发明内容 SUMMARY

[0007] 本发明的目的在于解决上述的技术问题,提供一种可植入胸腔的左心室辅助血泵。 [0007] The object of the present invention is to solve the above technical problems, there is provided an implantable left ventricular assist blood pump thorax.

[0008] 本发明的目的,将通过以下技术方案得以实现: [0008] The object of the present invention, will be achieved by the following technical solution:

[0009] 一种左心室辅助血泵,包括固定连接于心脏的心尖袖套和与其固定连接的血泵本体; [0009] A left ventricular assist blood pump, comprising fixedly connected to the apex of the heart and the blood pump body sleeve fixedly connected thereto;

[0010] 所述心尖袖套包括缝合环及套设在缝合环外周的柔性裙边,所述缝合环包括一沿其轴线开设的缝合环内孔; [0010] The apical sewing ring comprises a sleeve and a sleeve provided on the outer periphery of the sewing ring of a flexible skirt, said suture ring comprising a bore along the axis thereof defines the sewing ring;

[0011] 所述血泵本体包括用于穿过所述心尖袖套的缝合环内孔进入心脏的入口管,所述入口管凸设于所述血泵本体的后盖上, [0011] After the blood pump body comprises an inlet pipe passing through the apex of the suture sleeve bore annulus into the heart, the inlet tube protruding from the body cover of the blood pump,

[0012] 所述缝合环包括一径向凸设的凸边,所述凸边与所述柔性裙边之间形成一周向环槽; [0012] The suture ring comprises a radially protruding rim of the flange to the annular groove formed between the flexible skirt and one week;

[0013] 所述血泵本体的后盖上设有仅可相对所述血泵本体径向移动的滑片,所述滑片的厚度小于等于所述周向环槽的宽度,以使所述滑片能伸入到所述周向环槽内;所述血泵本体的后盖上向内凹设有一沉槽,所述沉槽的最大外径大于等于所述凸边的最大外径,所述沉槽的深度大于等于所述凸边的厚度; [0013] The cover is provided only with respect to the blood pump body radially movable slide, the slide sheet thickness after the blood pump is greater than the width of the body of the circumferential ring groove, so that the vane can extend into the circumferential ring groove; after the blood pump body cover is provided with the concave groove sank, the maximum outer diameter of the countersink is greater than or equal to the maximum outer diameter of the rim, said countersink It is greater than a depth equal to the thickness of the rim;

[0014] 所述滑片可移动地伸入到所述周向环槽内后,所述凸边位于所述滑片与所述沉槽的底面之间,所述心尖袖套与所述血泵本体相对轴向固定。 [0014] The slide movably extending into the circumferential groove of the ring, is located between the convex side to a bottom surface of the slide groove of the sink, with the apex of the blood pump body sleeve relatively axially fixed.

[0015] 优选地,所述柔性裙边由毛砧内层及包覆所述毛砧的毛砧外衣组成。 [0015] Preferably the flexible skirt from the bulk of the hair and wrapping the inner anvil anvil anvil hair coat composition.

[0016] 优选地,所述缝合环的近端表面上凹设有一个轴向环槽,所述轴向环槽内开设有一组缝线孔,所述缝线孔为通孔,用于医用缝线穿过并缝结于所述柔性裙边上。 [0016] Preferably, the recess has an axial ring groove on the proximal surface of the suture ring, the axial ring groove set defines a suture hole, the suture hole is a through hole for medical and stitched through suture knot on said flexible skirt.

[0017] 优选地,所述后盖上向外突起至少一个导槽,所述滑片在所述导槽内径向滑动。 [0017] Preferably, the rear cover at least one outwardly projecting guide groove, said slide slot in said guide slide radially.

[0018] 优选地,所述后盖上向外设有2个倒L型滑台,所述滑台与后盖之间的间隙为导槽。 [0018] Preferably, the rear cover is provided with two outwardly inverted L-shaped slide, said slide table and a gap between the rear of the guide groove.

[0019] 优选地,所述后盖上向外对称设有四个倒L型滑台,其中两个滑台的间隙相对设置形成一个导槽,另外两个滑台的间隙相对设置形成另一个导槽。 [0019] Preferably, the rear cover is provided with four symmetrically outwardly inverted L-shaped slide, wherein the slide table of the gap two opposed forming a guide groove, the other two gaps forming the slide table disposed opposite another the guide groove.

[0020] 优选地,所述后盖上向内凹设有滑片沉槽,相应的所述滑片上设有一个可被置于所述滑片沉槽内的倒刺,所述倒刺的高度大于所述滑片沉槽的深度。 [0020] Preferably, the rear cover is provided with the concave vane groove sink, which may be provided with barbs disposed in the undercut recess of the slide on the respective slide, the barb the vane height greater than the depth of the countersink.

[0021] 优选地,所述滑片沉槽的内圈为一楔形的导向部,所述导向部的形状与所述倒刺的形状相配。 [0021] Preferably, the inner vane groove sink is a wedge-shaped guide portion, the shape of the guide portion and the shape of the barb match.

[0022] 优选地,所述滑片沉槽的深度小于所述沉槽的深度。 [0022] Preferably, the depth of the vane groove is less than the depth of the sink sink groove.

[0023] 优选地,所述滑片的后端设置有一方便捏握的台阶,所述倒刺设置在所述滑片的前端中部。 [0023] Preferably, the rear end of the slide is provided with a pinch grip a convenient step, the barbs disposed in a middle of the front end of the slide.

[0024] 优选地,所述倒刺两侧均向滑片后端延伸开设有一条直线变形槽。 [0024] Preferably, the barbs extending towards both sides rear slide groove defines a line modification.

[0025] 优选地,所述滑片的台阶上径向开设有一穿线孔,所述滑片的表面上开设有一与变形槽平行的穿线槽,所述穿线孔与所述穿线槽在同一直线上并贯通,所述滑台的端面上开设有一线孔,所述线孔与所述穿线槽联通。 [0025] Preferably, the step defines the radial slide has a threaded hole defined in parallel with a groove through the deformation of the upper surface of the slide groove, said through hole and the threading groove along the same line and a through opening, an end surface of said slide table has a line hole, the hole and the wire passing groove Unicom.

[0026] 本发明的还可通过另一技术方案得以实施: [0026] Another aspect may also be implemented by the present invention:

[0027] 以上所述的一种左心室辅助泵,所述血泵本体的后盖上设有两个仅可径向移动的锁片,所述锁片至少包括一弧形段,所述弧形段的两端分别伸入到2个导槽内,所述两个锁片径向向内移动到接触后其弧形段所形成的内圆的直径小于所述沉槽的直径。 One kind of the left ventricle [0027] The auxiliary pump of the above, the rear cover of the blood pump body is provided with only two radially movable locking plate, said locking plate comprises at least one arcuate section, said arc segment-shaped ends, respectively, extending into two guide grooves, the two locking tab moves radially inwardly into contact with the inner diameter of the circle formed by the diameter of the arcuate segment smaller than said counterbore groove.

[0028] 优选地,所述锁片的弧形段的两端分别为一直线段,所述直线段可移动地伸入在所述导槽内。 [0028] Preferably, the arcuate ends of the locking tab segment is a straight line segment, respectively, the straight segments movably extending into said guide groove.

[0029] 优选地,所述两个锁片的同一侧的直线段的轴线均在同一直线上。 Axis [0029] Preferably, the locking tab two straight-line segments are in the same side of the same line.

[0030] 优选地,所述后盖上向内凹设有锁片沉槽,相应的所述锁片上设有一个可被置于所述锁片沉槽内的倒刺,所述倒刺的高度大于所述锁片沉槽的深度。 [0030] Preferably, the cover is provided with locking plate to the sink after the concave, it is provided with a barb locking tab disposed on a respective undercut recess of the locking plate, the barb the locking tab is greater than the height of the groove depth of the sink.

[0031] 优选地,所述锁片沉槽的内圈为一楔形的导向部,所述导向部的形状与所述倒刺的形状相配。 [0031] Preferably, the locking tab inner countersink is a wedge-shaped guide portion, the shape of the guide portion and the shape of the barb match.

[0032] 优选地,所述锁片的直线段的后端设置有一方便捏握的台阶。 [0032] Preferably, the rear end of the straight section of the locking tab is provided with a pinch grip a convenient step.

[0033] 本发明的有益效果体现在:采用滑片来固定心尖袖套和血泵的位置,使得心尖袖套和血泵的连接更能方便可靠。 [0033] Advantageous effects of the present invention are embodied in: a fixed position to the cuff and the blood pump apex with the sliding plate, such that the sleeve and connected to the apex of the blood pump is more convenient and reliable. 同时,缩短了血泵入口管的轴向尺寸,在不破坏膈肌的情况下,有利于左心室辅助泵在胸腔中的植入,大大提高手术的成功率。 At the same time, shortening the axial dimension of the blood pump inlet tube, without damaging the diaphragm, facilitate left ventricular assist pump implanted in the chest, thus greatly improving the success rate of the operation.

附图说明[0034] 图1是本发明在使用时与心脏连接结构示意图。 BRIEF DESCRIPTION [0034] FIG. 1 is a schematic view of the connection structure of the present invention, when used with the heart.

[0035] 图2是本发明心尖袖套的立体结构示意图。 [0035] FIG. 2 is a perspective schematic view of the structure of the present invention apical cuff.

[0036] 图3是图2的左右视图。 [0036] FIG. 3 is a view of FIG. 2 left and right.

[0037] 图4是本发明心尖袖套的截面结构示意图。 [0037] FIG. 4 is a schematic cross-sectional structure of the present invention apical cuff.

[0038] 图5是本发明第一实施例血泵本体的后盖结构示意图,此时,不包括滑片。 [0038] FIG. 5 is a schematic view of the rear body structure of a first embodiment of the blood pump embodiment of the present invention, at this time, does not include a vane.

[0039] 图6是本发明第一实施例滑片仰视图。 [0039] FIG. 6 is a bottom view of the first embodiment of the present invention slide.

[0040] 图7是本发明第一实施例滑片俯视图。 [0040] FIG. 7 is a first embodiment of the present invention a plan view of the slider.

[0041] 图8是本发明第一实施例血泵本体的后盖结构示意图,此时包括滑片。 [0041] FIG. 8 is a schematic view of the rear body structure of a first embodiment of the blood pump embodiment of the present invention, comprises a slide case.

[0042] 图9是本发明第一实施例心尖袖套套设于血泵本体入口管上,滑片插入周向环槽的结构示意图。 [0042] FIG. 9 is a first embodiment of the present invention is sleeved on the apical cuff blood pump body inlet pipe, a schematic view of the structure of the circumferential ring groove insert slide.

[0043] 图10是本发明第一实施例滑片还未插入时血泵本体入口管处剖视图。 [0043] FIG. 10 is a first embodiment of the present invention, the blood pump body at inlet pipe sectional view Example slide has not been inserted.

[0044] 图11是本发明第二实施例滑片在后盖内的结构示意图。 [0044] FIG. 11 is a schematic structural diagram of the slider in the second embodiment of the cover of the present invention.

[0045] 图12是本发明第二实施例的后盖结构示意图,此时滑片未在后盖内。 [0045] FIG. 12 is a schematic view of the rear structure of the second embodiment of the present invention, when the slider is not within the rear cover.

[0046] 图13是本发明第二实施例滑片结构示意图。 [0046] FIG. 13 is a schematic view of a second slide structure of the present embodiment of the invention.

[0047] 图14是本发明第二实施例滑片未推入时后盖结构示意图。 [0047] FIG. 14 is a second embodiment of the present invention is not slide schematic configuration push-fitting cover.

[0048] 图15是本发明第二实施例滑片推入时后盖结构示意图。 [0048] FIG. 15 is a second embodiment of the present invention slide schematic structure of push-fitting cover.

具体实施方式 Detailed ways

[0049] 本发明提供了一种左心室辅助血泵,如图1所示,和现有技术一致,包括固定连接于心脏70的心尖袖套1和与心尖袖套1固定连接的血泵本体2,血泵本体2上凸设一进入心脏70、使得心室内血液进入血泵本体2的入口管23。 [0049] The present invention provides a left ventricular assist blood pump, as shown in FIG, 1, and consistent with the prior art, comprises a fixedly connected to the apex 70 of the heart and the apex of the cuff 1 the cuff body is fixedly connected to the blood pump 1 2, the blood pump housing 2 is provided a protrusion 70 into the heart, such that blood enters the blood intraventricular pump inlet tube 232 of the body. 所述血泵本体2径向面上设置有一与人工血管80连接,用于血泵本体2内血液输出的输出端。 2 a radial surface of the body is provided with a blood pump and the artificial blood vessel 80 is connected to the output of the blood pump for the main body 2 of the blood outlet.

[0050] 如图2至图4所示,所述心尖袖套1包括缝合环11及套设在缝合环11外周的柔性裙边12。 [0050] As shown in FIG. 2 to FIG. 4, the sleeve 1 apical sewing ring 12 comprises a flexible skirt 11 and the sleeve 11 provided in an outer periphery of the suture ring. 所述缝合环11包括一径向凸设的凸边18,所述凸边18与所述柔性裙边12之间形成一周向环槽13 ;所述缝合环11的近端表面17上凹设有一个轴向环槽14,所述轴向环槽14内开设有一组缝线孔15,所述缝线孔15为通孔,用于缝线穿过并缝结于所述柔性裙边12上。 The suture ring 11 comprises a radially protruding flange 18 of the rim 18 of the flexible skirt with a circumferential annular groove 13 is formed between 12; 17 on the recessed surface of the proximal end of the suture ring 11 an axial annular groove 14, 14 defines the axial ring groove 15, the suture hole 15 is a through hole group suture hole, and a suture through the slits of the flexible skirt junction 12 on. 轴向环槽14的设置是为了埋入缝线,而凹设于近端表面17,是为了防止该处的缝线影响之后的装配,同时,也防止了之后装配时对缝线的损伤。 An axial annular groove 14 is for embedding the suture, and recessed surface 17 on the proximal end, to prevent the suture assembly after impact thereat, while also preventing damage to the assembly after the suture.

[0051 ] 所述缝合环11包括一沿其轴线开设的缝合环内孔111,所述入口管23凸设在血泵本体2的后盖21上,所述入口管23穿过所述心尖袖套1的缝合环内孔111从而进入心脏70。 [0051] The suture ring 11 along the suture ring comprises a bore 111 which defines an axis of the inlet pipe 23 protrudes from the body in the blood pump 21 on the cover 2, the inlet tube 23 passing through the apex Sleeve sleeve sewing ring so that the inner bore 1111 into the heart 70. 为了入口管23更容易进入缝合环内孔111,在缝合环内孔111的近端做倒角处理。 In order to more easily enter the inlet tube 23 within the bore of the sewing ring 111, made chamfered at the proximal end of the suture ring within the hole 111. 所述缝合环内孔111 一般采用钛及金材质,由于其与心脏直接接触,为了防止其不损伤心肌, 在其远端做倒圆角处理。 The suture ring 111 generally use the inner bore of titanium and gold material, due to its direct contact with the heart, it does not damage the myocardium in order to prevent, at its distal end rounded off to do. 为了避免血泵本体2与心脏连接后漏血,在入口管23上还套设有带有密封槽的入口外套,密封槽内设置有一0型密封圈24。 In order to avoid the blood pump body 2 is connected with the heart endoleak, the inlet pipe 23 is also provided with an inlet sleeve with the outer seal groove, a sealing groove 10 is provided with a 24-ring.

[0052] 所述柔性裙边12由毛砧121及用于包覆所述毛砧121的的毛砧外衣120组成;所述毛砧121使用植入级材料,可以使用硅胶材料。 [0052] The flexible skirt 12 from the bulk of the anvil 121 and anvil cover 121 of the fur coat of hair anvil 120 for composing; anvil 121 using the hair implant grade materials, silica gel materials may be used. 所述毛砧外衣120是由与心脏组织相容性材料制得,例如涤纶布料。 The fur coat anvil 120 are made from the cardiac tissue compatible material, such as polyester fabric. 具体的,通过医用缝线将柔性裙边12缝于心尖上,从而将心尖袖套1固定于心脏70上。 Specifically, the flexible skirt by a medical suture sewn to the apex 12, whereby the cuff 1 is fixed to the apex of the heart 70.

[0053] 如图5所示,所述后盖21上向外对称设有四个倒L型滑台26。 As shown in [0053] FIG. 5, the rear cover 21 is provided with four symmetrically outwardly inverted L-shaped slide table 26. 其中两个滑台沈的间隙相对设置形成一个导槽25,另外两个滑台沈的间隙相对设置形成另一个导槽25。 Wherein two slide sink disposed opposite a gap formed in the guide groove 25, two further slide sink disposed opposite the other guide groove a gap 25 is formed.

[0054] 如图8所示,每两个相对设置的滑台沈内设置有可在导槽25内径向移动的滑片30,所述滑片30仅可相对所述血泵本体2径向移动的滑片30,由于滑片30在导槽25内移动,并不能使得滑片30作轴向的运动。 [0054] As shown, each of the two slide sink disposed opposite 8 provided with a slide 30 to be moved, the slide 30 is only movable relative to the body 2 of the blood pump 25 at a radially inner diameter of the guide groove moving slider 30, since the slider 30 moves within the guide groove 25, does not make the slider 30 for axial movement. 所述滑片30的厚度小于等于所述周向环槽13的宽度,以使所述滑片30能伸入到所述周向环槽13内。 The slide 30 has a thickness less than or equal to the circumferential width of the annular groove 13, so that the slide 30 can be inserted into the inner ring into the circumferential groove 13. 周向环槽13的宽度只需在Imm以内, 而旋转片40采用钛合金制成,在保证了连接可靠性的基础上,这样使得整个左心室辅助泵的轴向尺寸大大缩小,在使用时,不必穿破膈肌90就能很好的完成工作。 The circumferential width of the annular groove 13 within Imm, simply, the rotary piece 40 is made of titanium alloy, to ensure connection reliability on the basis, so that the overall axial dimension greatly reduced left ventricular assist pump, when in use, do not perforation of the diaphragm 90 can be a good job done.

[0055] 如图6、图7所示,所述滑片30的后端设置有一方便捏握的台阶31,滑片30的前端中部设置有倒刺35,所述倒刺35两侧均向滑片30后端延伸开设有一条直线变形槽34。 [0055] FIG. 6, FIG. 7, the rear end of the slide plate 30 is provided with a convenient step pinch grip 31, the distal end 30 of the middle slide 35 is provided with a barb, the barb 35 to both sides extending the rear end of slide 30 defines a straight groove 34 deformation. 变形槽34与倒刺35形成滑片30的中间瓣,中间瓣在受力时具有更大的变形性,从而减小滑片30插入时的阻力。 Deformable barbs 35 and grooves 34 forming the intermediate slide valve 30, the intermediate flap having greater deformability when a force, thereby reducing resistance when the slider 30 is inserted.

[0056] 所述血泵本体2的后盖21上向内凹设有一沉槽22。 The [0056] Blood pump body 21 on the rear cover 2 is provided with the concave groove 22 sank. 所述沉槽22的最大外径大于等于所述凸边18的最大外径,所述沉槽22的深度大于等于所述凸边18的厚度,使得心尖袖套1能够很好的套设在入口管23并嵌入沉槽22内。 The maximum outer diameter of the countersink 22 is greater than or equal to the maximum outer diameter 18 of the rim, the groove depth of the counterbore 22 is greater than or equal to the thickness of the projecting edge 18, such that the sleeve 1 can be a good apical sleeved inlet tubes 23 and 22 fitted in the sink.

[0057] 所述后盖21上还向内凹设有滑片沉槽27,所述滑片沉槽27的内圈为一楔形的导向部271,所述导向部271的形状与所述倒刺35的形状相配。 [0057] The cover 21 is also provided on the concave vane groove 27 Shen, said vane inner countersink 27 is a wedge-shaped guide portion 271, the shape of the guide portion 271 and the inverted match the shape of the spines 35. 导向部271的设置是为了滑片30拉出时,从沉槽22更容易进入滑片沉槽27。 A guide portion 271 is pulled to slide 30, the sunken groove 22 slide more easily enter the sink 27. 相应的所述滑片30上设有一个可被置于所述滑片沉槽27内的倒刺35,所述倒刺35的高度大于所述滑片沉槽27的深度。 Provided on the respective slide 30 may be disposed a barb 27 within the sink of the vane 35, the height of the barbs 35 is greater than the depth of the countersink 27 of the vane. 所述滑片沉槽27的深度小于所述沉槽22的深度。 The vane depth less than the depth of the countersink 27 of the countersink 22. 滑片沉槽27高于沉槽22,同时,结合倒刺35,这样在滑片30被拉动时,不会被拉出导槽25。 Shen vane groove 27 above the sink 22, at the same time, in conjunction with barb 35, so that when the slider 30 is pulled, the guide groove 25 can not be pulled.

[0058] 如图9、图10所示,所述滑片30可移动地伸入到所述周向环槽13内后,所述凸边18位于所述滑片30与所述沉槽22的底面之间,所述心尖袖套1与所述血泵本体2相对轴向固定。 [0058] FIG 9, FIG. 10, the slider 30 movably extending into the bottom surface of the circumferential groove the inner ring 13, the bead 18 positioned in the slide grooves 30 and the counterbore 22 between the apex of the sleeve 1 and the blood pump is fixed axially relative to the body 2. 此时,台阶内侧312抵靠于滑台最外端,台阶外侧311与后盖12的外周面在一弧形面上。 In this case, the step 312 abuts against the inner side of the outermost end of the slide, a circumferential surface of the outer arcuate surface of the outer step 311 and the rear cover 12.

[0059] 具体的,未与缝合环11配合时,如图10所示,倒刺35在滑片沉槽27内,使滑片30 不易从后盖21上滑出。 [0059] Specifically, when not fitted to the sewing ring 11, shown in Figure 10, the barbs 35 slide in the sink 27, the slide plate 30 on the rear cover 21 from slipping out easily. 当要配合时,倒刺35推入沉槽22内,即进入到周向环槽13内。 When fitted to barbs 35 is pushed into the sink 22, i.e., into the inner circumferential ring groove 13. 使滑片30不易滑入滑片沉槽27内,这样就不会引起连接失效(此时缝合环11不会从后盖21 的沉槽22中脱出)。 Easy to slide the slide plate 30 slide inside the sink 27, so as not to cause connection failure (when the sewing ring 11 does not come out from the cover 21 of the sink 22).

[0060] 当配合时,滑片30顶到底,由于倒刺35的存在,滑片30的中间瓣变形,依靠弹簧力可将缝合环11压紧,使血泵本体2不会沿入口管23轴向转动。 [0060] When mated, the slider 30 in the end due to the presence of barbs 35, the intermediate slide valve 30 is deformed, the suture may rely on the spring force of the compression ring 11, so that the blood pump body 2 along inlet pipe 23 will not axial rotation.

[0061] 此时,倒刺35压紧缝合环11,使得其在径向位置也不能转动,即径向位置也得到固定。 [0061] At this time, the suture ring 11 pressed against the barbs 35, so that it can not rotate in a radial position, i.e., the radial position is also fixed. 中间瓣变形,滑片30的两侧会向上翘起,周向环槽13的最高端要高于所述滑片30 翘起的两侧最高端,保证滑片30在插入时不会伤及缝合环11处的缝合线。 Intermediate lobe deformation, on both sides of the slider 30 will tilt upwardly to the periphery of the slip ring groove 13 is higher than the top end sides of the top end plate 30 tilt, the slider 30 to ensure that during insertion the suture ring not hurt 11 at the suture.

[0062] 为了进一步稳定心尖袖套1与血泵本体2的固定关系,将滑片30扎紧在后盖21 上。 [0062] To further stabilize the apical cuff fixed relationship with the blood pump 1 body 2, the slider 30 is fastened on the rear cover 21. 在滑片30的台阶31上径向开设有一穿线孔32,滑片30的表面上开设有一与变形槽34平行的穿线槽33,所述穿线孔32与所述穿线槽33在同一直线上并贯通,所述滑台沈的端面上开设有一与所述穿线槽33联通的线孔观,联通是指所述线孔观的阴影在所述的穿线槽33内。 On the step 31 of the slide 30 defines a radial threaded holes 32, 34 in parallel with a slot 33 through deformation of the groove defines an upper surface of the slider 30, the threading hole 32 through the slot 33 on the same straight line and through the slide defines a slot 33 with the through hole line concept Unicom, Unicom refers to the end face of the shadow table sink hole of the concept of the wire within the wire slot 33. 使用时,预先将线通过穿线槽33进入穿线孔32与线孔观,待滑片30插入后, 将预先穿好的线系好即可。 In use, the advance line 33 through the wire slot 32 and into the threaded bore hole line concept, to be inserted into the slider 30, previously put on the line to fasten. 穿线槽33可以使线埋入其中,避免拔出滑片30时对线的损伤。 The wire passing groove 33 may be embedded therein, to avoid damage to the wire 30 is pulled out of the slide. [0063] 以下具体阐述下本发明的另一实施例。 [0063] The present invention is further illustrated in the following specific embodiments.

[0064] 和第一实施例一致,心尖袖套1包括缝合环11及套设在缝合环11外周的用于缝于心尖的柔性裙边12。 [0064] and the flexible skirt 12 of the sewing ring 11 and sleeve 11 provided on the outer periphery of the suture ring used to sew the apex of a first embodiment consistent embodiment, comprises an apical cuff. 血泵本体1的后盖21上也设置有沉槽22及滑台26,所述滑台沈与后盖21之间的间隙为导槽25。 A blood pump cover body 21 is also provided with a sink 22 and the slide table 26, the sliding gap between the sink and the rear cover 21 sets the guide groove 25. 所述后盖21上向内凹设有锁片沉槽27,所述锁片沉槽27 的内圈为一楔形的导向部271。 The cover sheet 21 is provided with a locking groove 27 concavely sink, the locking tab inner countersink 27 is a wedge-shaped guide portion 271.

[0065] 不同的是,如图11-13所示,所述血泵本体2的后盖21上设有两个仅可径向移动的锁片30,所述锁片30包括一弧形段36,所述弧形段36的两端分别为一直线段37,所述直线段37可移动地伸入在所述导槽25内。 [0065] The difference is that, as shown, the blood pump body 30 is provided with two locking discs only radially movable 2111-13 on the rear cover 2, the locking plate 30 includes an arcuate section 36, both ends of the arcuate section 36 is a straight line segment 37, respectively, the straight line segment 37 extends into movably within the guide groove 25.

[0066] 作为较佳实施例,所述两个锁片30的同一侧的直线段37的轴线均在同一直线上。 [0066] As a preferred embodiment, the axis of the two locking pieces 30 of the straight segments 37 of the same side are on the same straight line. 同时,为了方便操作者捏握,所述锁片30的直线段37的后端设置有一台阶31。 Meanwhile, in order to facilitate the operator to pinch grip, straight line segments of the lock plate 30 is provided with a rear end 37, a step 31.

[0067] 所述锁片30上设有一个可被置于所述锁片沉槽27内、与所述导向部271的形状相配的倒刺35,所述倒刺35的高度大于所述锁片沉槽27的深度。 [0067] The locking plate 30 is provided on a 27 may be placed, and matching the shape of the barb 271 of the guide portion 35 of the latch plate the sink, the barbs 35 is greater than the height of the lock plate countersink 27 depth. 所述两个锁片30径向向内移动到接触后其弧形段36所形成的内圆的直径小于所述沉槽22的直径。 The two locking pieces 30 moved radially inward to the inner diameter of the diameter of a circle which is in contact with the arcuate segment 36 is formed smaller than the groove 22 of the sink.

[0068] 如图14所示,为锁片30在初始位置,即还未插入时,在后盖21上的结构状态示意图,操作者通过捏握直线端37的台阶31,将相对的锁片30向相对位置推入,即可将将心尖袖套1和血泵本体2进行锁紧。 [0068] 14, in the initial position, i.e., the time has not been inserted, a schematic structure of the rear cover 21 in a state of locking tab 30, the operator by linear pinch grip end 37 step 31, the opposite locking pieces 30 is pushed to the opposite position to the apical cuff blood pump 1 and the body 2 is locked. 如图15所示,锁片30插入后,台阶31露于滑台沈外。 15, the lock plate 30 is inserted, in step 31 the slide table sink exposed outside.

[0069] 本发明尚有多种实施方式,凡采用等同变换或者等效变换而形成的所有技术方案,均落在本发明的保护范围之内。 [0069] The various embodiments of the present invention, there, where the use of all technical equivalents transform or equivalent conversion scheme formed, are within the scope of the present invention.

Claims (14)

1. 一种左心室辅助血泵,包括固定连接于心脏(70)的心尖袖套(1)和与其固定连接的血泵本体O);所述心尖袖套(1)包括缝合环(11)及套设在缝合环(11)外周的柔性裙边(12),所述缝合环(11)包括一沿其轴线开设的缝合环内孔(111);所述血泵本体(¾包括用于穿过所述心尖袖套的缝合环内孔(111)进入心脏(70)的入口管(23),所述入口管凸设于所述血泵本体O)的后盖上,其特征在于:所述缝合环(11)包括一径向凸设的凸边(18),所述凸边(18)与所述柔性裙边(12)之间形成一周向环槽(13);所述血泵本体O)的后盖上设有仅可相对所述血泵本体(¾径向移动的滑片(30),所述滑片(30)的厚度小于等于所述周向环槽(13)的宽度,以使所述滑片(30)能伸入到所述周向环槽(13)内;所述血泵本体(2)的后盖上向内凹设有一沉槽(22),所述沉槽02)的最大外径大于等于所 A left ventricular assist blood pump, comprising fixedly connected to the heart (70) of the apical cuff (1) and fixedly connected thereto a blood pump body O); apex of said sleeve (1) comprises a sewing ring (11) and a sleeve provided (11) an outer periphery of the suture ring of the flexible skirt (12), said suture ring (11) along a suture ring comprises a bore (111) which defines an axis; said blood pump body (including a ¾ after passing through the apical sewing ring sleeve bore (111) into the heart (70) an inlet pipe (23), the inlet tube protruding from the blood pump body O) of the cover, wherein: said suture ring (11) comprises a radially protruding from the flange (18), said rim (18) and said flexible skirt forming a circumferential ring groove (13) (12); said blood pump body O) after the cover is provided only with respect to the thickness of the blood pump body (¾ slide (30 radial movement), the slide (30) is greater than the width of the circumferential annular groove (13) , so that the slide (30) can be inserted into the inner ring to the circumferential groove (13); after the blood pump body (2) of the cover is provided with grooves sink (22) to the concave, said countersink 02) is greater than the maximum outer diameter equal to the 凸边(18)的最大外径,所述沉槽02)的深度大于等于所述凸边(18)的厚度;所述滑片(30)可移动地伸入到所述周向环槽(13)内后,所述凸边(18)位于所述滑片(30)与所述沉槽02)的底面之间,所述心尖袖套(1)与所述血泵本体(2)相对轴向固定。 The maximum outer diameter of the flange (18), 02) the depth of the groove is greater than or equal to the sink flange (18) has a thickness; the slide (30) movably extending into said circumferential ring groove (13) after the inside of the rim (18) in said slide (30) between a groove bottom surface of the counterbore 02) and the apical sleeve (1) the blood pump body (2) relative to the axial direction fixed.
2 根据权利要求1所述的左心室辅助血泵,其特征在于:所述柔性裙边(12)由毛砧(121)内层及包覆所述毛砧(121)的毛砧外衣(120)组成。 According to claim 2 left ventricular assist blood pump of claim 1, wherein: said flexible skirt (12) from the bulk of the anvil (121) and an inner layer coating the hair anvil (121) fur coat anvil (120 )composition.
3.根据权利要求2所述的左心室辅助血泵,其特征在于:所述缝合环(11)的近端表面(17)上凹设有一个轴向环槽(14),所述轴向环槽(14)内开设有一组缝线孔(15),所述缝线孔(15)为通孔,用于医用缝线穿过并缝结于所述柔性裙边(12)上。 The left ventricular assist blood pump according to claim 2, wherein: a proximal surface of said suture ring (11) is provided with a recessed axial ring groove (14) (17), said axial ring groove (14) defines a series of suture holes (15), the suture hole (15) is a through hole, and a medical suture through the slits of the flexible skirt junction (12).
4.根据权利要求1至3所述的任一左心室辅助血泵,其特征在于:所述后盖上向外突起至少一个导槽(25),所述滑片(30)在所述导槽0¾内径向滑动。 According to any of claim 13 to a left ventricular assist blood pump as claimed in claim, wherein: said rear cover projecting outwardly at least one guide groove (25), the slide (30) in the guide 0¾ inner diameter of the groove to slide.
5.根据权利要求4所述的左心室辅助血泵,其特征在于:所述后盖上向外设有2 个倒L型滑台(¾),所述滑台06)与后盖之间的间隙为导槽05)。 Left ventricular assist blood pump according to claim 4, wherein: said rear cover is provided with two outwardly inverted L-shaped slide (¾), the slide table 06) between the rear cover and clearance for the guide groove 05).
6.根据权利要求5所述的左心室辅助泵,其特征在于:所述后盖上向外对称设有四个倒L型滑台(沈),其中两个滑台06)的间隙相对设置形成一个导槽(25),另外两个滑台06)的间隙相对设置形成另一个导槽05)。 5 The left ventricle assist pump according to claim, wherein: said rear cover with four outwardly symmetrically inverted L-shaped slide (Shen), wherein the two slide 06) disposed opposite a gap forming a guide groove (25), two further slide table 06) forming a gap relative to the other guide groove 05 is provided).
7.根据权利要求4所述的左心室辅助血泵,其特征在于:所述后盖上向内凹设有滑片沉槽(27),相应的所述滑片(30)上设有一个可被置于所述滑片沉槽(XT)内的倒刺(35),所述倒刺(3¾的高度大于所述滑片沉槽(XT)的深度。 Left ventricular assist blood pump according to claim 4, wherein: the sink cover is provided with slide (27) concave to the rear, is provided with a respective said slide (30) the slide may be placed barb (35) in the sink (XT), said barbs (3¾ a height greater than the depth of the sliding plate the sink (XT) a.
8.根据权利要求7所述的左心室辅助血泵,其特征在于:所述滑片沉槽(XT)的内圈为一楔形的导向部071),所述导向部071)的形状与所述倒刺(35)的形状相配;所述滑片沉槽(XT)的深度小于所述沉槽0¾的深度。 According to claim left ventricular assist blood pump of claim 7, wherein: said inner slide the sink (XT) is a wedge-shaped guide portion 071), the guide portion 071) and the shape of the the shape of said barbs (35) matched; Shen depth of the vane groove (XT) is less than the depth of the countersink 0¾.
9.根据权利要求7所述的左心室辅助血泵,其特征在于:所述滑片(30)的后端设置有一方便捏握的台阶(31),所述倒刺(3¾设置在所述滑片(30)的前端中部;所述倒刺(35) 两侧均向滑片(30)后端延伸开设有一条直线变形槽(34)。 According to claim left ventricular assist blood pump of claim 7, wherein: the rear end of the slide (30) is provided with a step (31) to facilitate a pinch grip of the barbs (3¾ provided the central distal slide (30); said barb (35) extending on both sides the rear end of the slider (30) defines a straight line to the deformed grooves (34).
10.根据权利要求9所述的左心室辅助血泵,其特征在于:所述滑片(30)的台阶上径向开设有一穿线孔(32),所述滑片(30)的表面上开设有一与变形槽(34)平行的穿线槽(33),所述穿线孔(32)与所述穿线槽(33)在同一直线上并贯通,所述滑台06)的端面上开设有一线孔(¾),所述线孔08)与所述穿线槽(33)联通。 10. Left ventricular assist blood pump according to claim 9, wherein: a threading defines radial holes (32) on the slide step (30), defines an upper surface of the slide (30) defines a deformation grooves (34) parallel to the stringing groove (33), said threaded hole (32) through said slot (33) and through the same straight line, the slide table 06) has an end face line hole (¾), the wire hole 08) through said slot (33) Unicom.
11.根据权利要求5所述的左心室辅助血泵,其特征在于:所述血泵本体O)的后盖(21)上设有两个仅可径向移动的锁片(30),所述锁片至少包括一弧形段(36),所述弧形段(36)的两端分别伸入到2个导槽05)内,所述两个锁片(30)径向向内移动到接触后其弧形段(36)所形成的内圆的直径小于所述沉槽02)的直径。 11. Left ventricular assist blood pump of claim 5, wherein: the blood pump body O) is provided with a locking cover plate (30) radially movable only two (21), the said lock plate comprises at least one arcuate section (36), both ends of the arc-shaped segments (36) respectively extending into two guide grooves 05), said two lock pieces (30) radially inward movement after its contact with the inner diameter of the circle arc segment (36) is formed smaller than the countersink 02) diameter.
12.根据权利要求11所述的左心室辅助血泵,其特征在于:所述锁片(30)的弧形段(36)的两端分别为一直线段(37),所述直线段(37)可移动地伸入在所述导槽05)内,所述两个锁片(30)的同一侧的直线段(37)的轴线均在同一直线上。 12. Left ventricular assist blood pump according to claim 11, wherein: both ends of the locking plate (30) arcuate section (36), respectively, a line segment (37), said straight line segment (37 ) movably extending into the guide groove 05), the axis of the two locking pieces (30) straight-line segments (37) are in the same side of the same line.
13.根据权利要求12所述的左心室辅助血泵,其特征在于:所述后盖上向内凹设有锁片沉槽(27),相应的所述锁片(30)上设有一个可被置于所述锁片沉槽(XT)内的倒刺(35),所述倒刺(3¾的高度大于所述锁片沉槽(XT)的深度。 13. Left ventricular assist blood pump according to claim 12, wherein: the cover sheet is provided with locking the sink (27) to said rear recessed, provided with a respective said locking tab (30) may be placed barb (35) in the sink (XT) of the locking plate, said barbs (3¾ a height greater than the depth of the sink (XT) of the locking tab.
14.根据权利要求13所述的左心室辅助血泵,其特征在于:所述锁片沉槽(XT)的内圈为一楔形的导向部071),所述导向部071)的形状与所述倒刺(35)的形状相配;所述锁片(30)的直线段(37)的后端设置有一方便捏握的台阶(31)。 The inner shape of the locking plate countersink (XT) is a wedge-shaped guide portion 071), the guide portion 071) is: 14. The left ventricular assist blood pump of claim 13, wherein the shape of said barbs (35) matched; rear end of the locking plate (30) of the straight line segment (37) is provided with a convenient step pinch grip (31).
CN201110255361.7A 2011-08-31 2011-08-31 Left ventricular assist blood pump CN102294057B (en)

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