CN102551920B - External compaction molding bone grafting mold - Google Patents

External compaction molding bone grafting mold Download PDF

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Publication number
CN102551920B
CN102551920B CN 201210055517 CN201210055517A CN102551920B CN 102551920 B CN102551920 B CN 102551920B CN 201210055517 CN201210055517 CN 201210055517 CN 201210055517 A CN201210055517 A CN 201210055517A CN 102551920 B CN102551920 B CN 102551920B
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chassis
bone
mold
shaft
characterized
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CN 201210055517
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CN102551920A (en
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张英泽
张纯朴
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张纯朴
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Abstract

本发明涉及一种体外打压成型植骨模具,其结构是在底盘上通过支架接有上定位环,在所述上定位环与所述底盘之间穿接有由若干直立的杆体合围成的栅墙;成型骨段髓腔用的轴杆穿过所述上定位环连接在所述底盘上。 The present invention relates to an in vitro to suppress graft molding die, which structure is connected to the chassis via a bracket with a positioning ring, between said positioning ring and is connected with the chassis through the rod is encircled by a plurality of upstanding gate into wall; bone segments forming shaft through said canal with the positioning ring attached to the chassis. 本发明模具是由细条杆体插接方式组成模具的侧围栅墙,既满足了其在模具侧面阻挡髂骨颗粒骨质外漏的作用,又可通过对单根杆体的逐一拆卸而避免了模具中的定型骨段的损毁,保证了拆模过程中定型骨段的完好。 The present invention is a mold plug-strand manner the rod side of the mold body composition fence walls, which not only meets the leakage barrier iliac bone particles in a mold side effect, but also removed one by one by a single rod body, the mold is avoided the section of damaged bone shape, form removal process to ensure that the styling intact bone segments. 本发明操作简便,成型迅速,拆模方便,实用性强,可使得整个骨缺损的治疗过程简化,治疗时间缩短,患者手术次数减少,痛苦程度降低,医疗护理费用减少,为用自体骨植入法治疗骨缺损提供了一个新途径。 The present invention is easy to operate, forming quickly and easily form removal, practical, so that the treatment process can be simplified entire bone defects, shorter treatment time, reduce the number of patients undergoing surgery, to reduce the degree of pain, to reduce the costs of medical care for autologous bone implants treatment of bone defects provides a new way.

Description

体外打压成型植骨模具 Vitro suppress graft molding die

技术领域 FIELD

[0001] 本发明涉及一种植骨用的骨成型模具,具体地说是一种体外打压成型植骨模具。 [0001] The present invention relates to a bone graft with one kind of mold, particularly an in vitro to suppress graft molding die.

背景技术 Background technique

[0002] 对于大段骨缺损的治疗,目前比较常用的治疗方案,一是取髂骨自体骨植骨治疗;二是外固定延长架延长。 [0002] For the treatment of large bone defects, the current commonly used treatment regimens, one iliac autologous bone graft treatment; two outer fixed frame extension extended. 前者是将从患者自身取下的髂骨制备成碎骨颗粒或骨棒,待内固定完成后将碎骨颗粒填塞入骨质缺损处。 The former is itself removed from the patient's iliac bone granules prepared as bone or rod to be fixed after completion of bone particles packed into the bone defect. 存在的问题是,纤维肉芽组织易长入骨缺损植骨区,治疗过程中易出现植骨吸收,使手术失败。 There is a problem, fibrous granulation tissue graft easy to grow into the bone defect area, the treatment process prone to bone absorption, so that the operation failed. 后者是在骨缺损处的骨干骺端截骨,安装外固定延长架,按每天I毫米速度延长。 The latter is a defect in the metaphysis osteotomy, mounting external fixation frame extension, the extension velocity by I mm per day. 存在的问题是,治疗时间一般要2— 3年,每天需调整延长,给患者及其家属都带来极大的不便。 The problem is, the treatment time is generally 2-3 years, the need to adjust the day extended to patients and their families are great inconvenience.

发明内容 SUMMARY

[0003] 本发明的目的就是提供一种体外打压成型植骨模具,以解决大段骨缺损治疗的疗程长、创伤多和费用高的问题。 [0003] The object of the present invention is to suppress the problem of providing an in vitro bone shaped mold to solve segmental bone defect treatment course, multiple trauma and high costs.

[0004] 本发明是这样实现的:一种体外打压成型植骨模具,在底盘上通过支架接有上定位环,在所述上定位环与所述底盘之间穿接有由若干直立的杆体合围成的栅墙;成型骨段髓腔用的轴杆穿过所述上定位环连接在所述底盘上。 [0004] The present invention is implemented as follows: An in vitro to suppress graft molding die, the chassis is connected with the holder by the positioning ring, between said positioning ring and the shaft is connected with the chassis through a plurality of upstanding surround the gate into the wall; bone segments forming shaft through said canal with the positioning ring attached to the chassis.

[0005] 所述杆体的长度大于所述上定位环顶面至所述底盘底面之间的距离,这样就可使构成栅墙的杆体上端穿出上定位环,从而便于拆模操作。 [0005] The length of the rod is greater than that of the positioning ring on the top surface to the distance between the bottom surface of the chassis, so that the upper end of the rod can be composed of a gate positioning ring piercing the wall, thereby facilitating the form removal operation.

[0006] 穿接所述杆体的上穿接孔开在所述上定位环内环圈的边沿。 [0006] connected to the upper member through the rod through the attachment hole opened in the inner edge of the positioning ring on the ring.

[0007] 所述支架的上端固定连接在所述上定位环上,所述支架的下端固定连接在所述底盘上,由此形成一种上定位环与底盘间的间距固定的定位连接模具。 [0007] The upper end of the bracket is fixedly connected to the positioning ring on the lower end of the bracket is fixedly connected to the chassis, thereby forming the positioning distance between the fixed locating ring and a connector on the chassis mold.

[0008] 所述支架的上端通过调整螺母连接在所述上定位环上,所述支架的下端固定连接在所述底盘上,由此形成一种上定位环与底盘间的间距可调的定位连接模具。 [0008] The upper frame is connected to the ring by positioning the adjusting nut, the lower end of the bracket is fixedly connected to the chassis, thereby forming a spacing between the positioning ring and the chassis for positioning the adjustable connecting the mold.

[0009] 在所述底盘的中部固接有定位凸块,在所述定位凸块上开有连接所述轴杆的螺孔。 [0009] fixed to a positioning projection in the middle of the chassis, a screw hole opened in the shaft connected to the bumps on the positioning. 这样可以减少底盘厚度,降低材料成本。 This can reduce the thickness of the chassis, reducing material costs.

[0010] 所述轴杆的顶端为方杆体,以便于利用工具拆下轴杆。 Top [0010] the shaft is a square shaft, the shaft in order to remove the tool in use.

[0011] 在所述轴杆上套接有加压套管,以利用其对栅墙中的髂骨骨质进行人体之外的加压成型操作。 [0011] In the sleeved rod shaft with a pressurized casing to pressurize its use outside the body wall of the gate ilium bone forming operation.

[0012] 治疗时,将从大段骨缺损患者身上取出的髂骨骨质制备成3X3X3毫米大小的骨颗粒,装入本发明模具中,再注入生物胶,然后再利用加压套管实施加压成型操作,以将髂骨骨质塑造成为与患者骨缺损部位基本相当的管状骨段。 [0012] the treatment, from the segmental bone defect in patients who withdrawn iliac bone osteoblasts prepared 3X3X3 mm particle size, the present invention is charged into a mold, and then injecting biological glue, and then use a pressurized sleeve plus embodiment molding operation to mold into the iliac bone and bone defect site of the patient's bone segment substantially equivalent. 定型完成之后的拆模操作过程是,先取下加压套管和轴杆,再通过敲击组成模具栅墙的杆体的上部外露端,使其松动下移,然后再从底盘的底面将下端露出的该根杆体拔出;在拆除掉大部分的栅墙杆体之后,即可将植骨用的定型骨段从上定位环与底盘之间的空当中取出,以供植骨手术操作之用。 Form removal operation after the setting process is completed, the pressure to remove the sleeve and the shaft, then by tapping the upper bar composed of die body wall exposed end of the gate to release it down, and then from the bottom surface of the lower end of the chassis is exposed the body of the pull rod; after removal of most of the gate off the wall rod can be used for shaping the bone graft segment removed from between the chassis and the positioning ring space which, for operation of a bone graft surgery.

[0013] 骨颗粒在模具中注胶加压成型后,由于生物胶粘滞特性而非常不易与模具的器壁相分离。 [0013] After the bone particles plastic injection pressure in the mold, since the hysteresis characteristics of the biological adhesive is very difficult to separate from the mold wall. 如果采用普通的强制分离手段,就会损坏定型骨段,使成型失败;而采用本发明模具的由细条杆体插接方式组成模具的侧围栅墙,既满足了其在模具侧面阻挡髂骨骨质的作用,又可通过对单根杆体的逐一拆卸而避免了模具中的定型骨段的损毁,保证了拆模过程中定型骨段的完好。 If the ordinary means of separation force, it will damage the bone segment shape, the molding failures; and the side bar by a thin rod connector embodiment using a mold consisting of a mold according to the present invention, the fence walls, which not only meets the barrier mold side Ilium interstitial, and removed one by one in turn by a single rod member to avoid damage to the shape of the bone segments in the mold, to ensure the shaping process Chaimo intact bone segments. 本发明的关键就在于此。 The key lies in this invention.

[0014] 将通过本发明模具所制的这种快速成型的定型骨段通过手术操作,移植到患者的骨缺损部位,使得植骨形状符合患者骨缺损处骨的形态,植骨成封闭状,纤维肉芽组织不易侵入,不易出现植骨吸收现象,手术成功率相应提高。 [0014] Such rapid prototyping shaped bone segments through a die of the present invention prepared by the surgical procedure, the transplanted bone defect site of the patient, so that the morphology of bone graft conforms to the shape of the patient's bone defect, bone graft into the obstructed, fibrous granulation tissue easily penetrated, less prone to bone absorption phenomenon, the success rate increased accordingly.

[0015] 本发明为髂骨再塑形提供了一种体外操作成型的有效用具,其操作简便,成型迅速,拆模方便,实用性强,可使得整个骨缺损的治疗过程简化,治疗时间缩短,患者手术次数减少,痛苦程度降低,医疗护理费用减少,为用自体骨植入法治疗骨缺损提供了一个新途径。 [0015] The present invention provides an effective tool iliac reshaping an in vitro molding operation, its simple, molded quickly and easily form removal, practical, so that the treatment process can be simplified entire bone defect, the treatment time is shortened , reduce the number of surgical patients, reduce the degree of pain, reduce medical care costs, provides a new approach for the treatment of bone defects with autologous bone implantation.

附图说明 BRIEF DESCRIPTION

[0016] 图1是本发明的结构示意图。 [0016] FIG. 1 is a structural diagram of the present invention.

[0017] 图中:1、轴杆,2、加压套管,3、调整螺母,4、上定位环,5、杆体,6、支架,7、底盘,8、下穿接孔,9、上穿接孔,10、定位凸块。 [0017] FIG: 1, the shaft 2, the pressure sleeve, 3, adjustment nuts 4, the positioning ring 5, the lever body 6, brackets, 7, chassis, 8, then through the hole 9, then through the hole 10, the positioning projections.

具体实施方式 Detailed ways

[0018] 如图1所示,在圆盘状的底盘7中部制有一个定位凸块10,定位凸块10与底盘7可为一体结构,在定位凸块10上开有一个中心螺孔,用以螺纹连接轴杆I。 [0018] 1, in the middle of a disk-shaped chassis 7 is formed with a positioning projection 10, the positioning projections 10 and the chassis 7 may be a unitary structure, the positioning projections 10 have a central threaded hole opening, for threaded shaft I. 轴杆I为圆柱形直杆,其下端车制有螺纹,以固定在中心螺孔中;其上端制有一段方杆体,以便于用工具拧紧或拧松。 I is a straight cylindrical stem rod, the lower end of the car which is threaded to the screw hole is fixed in the center; manufactured by its upper end there is a square rod, in order to use the tool to tighten or loosen. 轴杆I的横截面最好是与植骨骨段的髓腔形状相近似。 I cross-section of the shaft is preferably shaped bone marrow cavity of the bone segments approximated.

[0019] 在底盘7上焊接有2—4根直杆支架6,在支架6的上端接有上定位环4,该上定位环4是通过旋接在每根支架上端的一对调整螺母3固定连接在支架6上的;也可焊接在支架6的上端。 [0019] 2-4 roots welded straight bar holder 6, the holder 6 is terminated by a positioning ring 4, the positioning ring 4 is screwed in through the upper end of each strut pair of the adjusting nut 7 on the chassis 3 fixedly connected to the holder 6; may be welded to the upper end of the holder 6. 在上定位环4上,沿内环圈的边沿开有一圈上穿接孔9 ;在底盘7上的定位凸块的周边,开有一圈下穿接孔8。 The upper positioning ring 4, a circle on the through opening 9 along the edge of the attachment hole of the inner ring; positioned on the chassis outside the bump 7, opening a circle beneath the jack 8. 上穿接孔9与下穿接孔8上下位置相对,用以穿接杆体5。 9 through the contact hole through the contact hole 8 and the vertical position relative to the body 5 through the connecting rod. 相邻穿接孔之间的距离应小于0.2mm,以使穿接后的相邻杆体5之间的间隙小于0.2mm。 The distance between adjacent contact holes wear should be less than 0.2mm, such that adjacent connecting rod through the gap between the body 5 is less than 0.2mm. 杆体5的直径以1.8—2.2mm为宜。 The diameter of the rod 5 is appropriate 1.8-2.2mm.

[0020] 杆体5穿接在上定位环4与底盘7之间,构成作为模具侧壁的合围栅墙。 [0020] The shaft 5 through the positioning ring is connected between the chassis 4 and 7, constituting a surround gate sidewall mold wall. 杆体5的长度要大于上定位环4顶面至底盘7底面之间的距离,这样,在穿接到上定位环4和底盘7上之后,杆体5的上端可以在上定位环4的顶面露出一截,以便于向下敲击脱模。 The length of the shaft 5 is larger than the positioning ring of the top surface to the distance between the chassis 7 the bottom surface, so that, after the wear to the positioning ring 4 and the chassis 7, the rod upper end 5 may be in the positioning of the top surface of the ring 4 exposing a length, in order to knock down the release.

[0021] 在轴杆I上套接有加压套管2,加压套管的外形与上定位环4的内环圈的形状相同,但尺寸略小,以便于加压套管在加压操作过程中的出入。 [0021] I sleeved on the shaft with a pressurized casing 2, a ring-shaped inner ring 4 of the same shape and positioning of the pressing sleeve, but slightly smaller dimensions, so that the pressure in the pressure sleeve out during operation.

[0022] 本发明模具的使用方法是:根据患者的骨缺损程度,确定植骨的长度,再根据该植骨长度,调整好上定位环4的高度。 [0022] Using a mold according to the present invention: The degree of patient bone defects, the length of the bone, and then based on the length of the bone, adjust the height of the positioning ring 4. 然后,插入轴杆1,将其固定在底盘7的定位凸台10上。 Then, insert the shaft 1, which is fixed on the table 10 in the positioning projection 7 of the chassis. 在上下相对的每对穿接孔中分别插入一根杆体5,以形成模具的侧壁栅墙。 Each pair of vertically opposed respectively inserted through an attachment hole in the shaft 5, to form the sidewall of the gate of the mold wall. 模具装好后放置在一个操作平台上,再从患者髂骨处取骨制备成骨颗粒,将颗粒骨放在模具的轴杆I与栅墙之间,注入生物胶后将加压套管2套接到轴杆I上,通过上下打压运动加压,使模具内的颗粒骨质逐渐被压紧成型,模具内的骨质即成为一个与模具内腔形状相同的骨段。 Placed between the mold installed on a platform, and then taken from the iliac bone of the patient into the prepared bone particles, the particles are placed in a mold of the bone shaft wall I and the gate, after injecting the pressurized biological glue sleeve 2 sleeve to the shaft I, up and down movement of the pressing pressure, the bone particles in the compression-molding die gradually, i.e. bone in the mold becomes the same shape of the mold cavity with a bone segment. [0023] 拆模时,先取下加压套管2,再松开并卸下轴杆I ;然后,逐一下敲杆体5的上露端,使杆体5松动,与骨段相分离;当杆体5的上端面被敲至与上定位环4的顶面相平齐后,在底盘7的底面即可露出杆体5的下端头;用钳子从底盘7的底面将所有杆体5的下露端分别夹住并逐一拽出;最后从支架6上卸下上定位环4,即可得到一个与患者骨缺损部位基本相当且带有髓腔的骨段。 [0023] form removal, remove the first pressurized casing 2, remove and then release the shaft I; and, one by one exposed end of the knock rod 5, the rod 5 is loosened, and the bone segments separated; when the shaft upper end face 5 is knocked into the ring and positioning the top surface 4 is flush with the bottom surface of the chassis 7 to expose the lower end of the head shaft 5; forceps from the bottom surface of the chassis 7 of all the rod 5 is exposed ends of each clamp live and pulled out one by one; finally detached from the holder 6 is positioned on the ring 4, to obtain a bone defect site of the patient with the substantially equivalent and with a medullary cavity of the bone segments.

[0024] 随后将该骨段植入患者的骨缺损部位,即可达到对骨缺损病症的有效治疗。 [0024] The bone segment is then implanted in the bone defect site of the patient, to achieve effective treatment of disorders of bone defects. 由于再塑形后的骨段本身带有髓腔,这样,一植骨呈封闭状既减少了纤维肉芽组织的侵入,又减少了骨髓腔空间处的用骨量;二是在治疗时可利用髓内钉固定,髓内钉可从髓腔中穿过,形成中心固定和环形支撑;三是髓腔内的血流通畅,给骨愈合提供了有效的营养,避免了植骨被吸收的情况发生,使植骨治疗更加有效。 Since bone segments after reshaping itself with the medullary cavity, so that a bone-like shape closed only reduces the intrusion of fibrous granulation tissue, but also reduce the amount of space with bone marrow cavity; the second is available in the treatment of intramedullary nail, the nail through the medullary cavity can be formed and an annular support fixed center; Third unobstructed blood flow within the canal, bone healing to provide effective nutrition to avoid the case where the bone is absorbed It occurs, the bone graft treatment more effective.

[0025] 本发明可制成系列的模具组,亦即使模具栅墙的合围形状与临床常见的骨缺损部位的骨形态形状基本相同或相近似,以便临床选用。 [0025] The present invention can be made series die set, the shape of the bone morphogenetic shape encircled common clinical bone defect site, even if the mold gate is also substantially the same wall or approximated, for clinical selection.

Claims (7)

1.一种体外打压成型植骨模具,其特征是,在底盘(7)上通过支架(6)接有上定位环(4),在所述上定位环(4)与所述底盘(7)之间穿接有由若干直立的杆体(5)合围成的栅墙;成型骨段髓腔用的轴杆(I)穿过所述上定位环(4 )连接在所述底盘(7 )上;在所述轴杆(I)上套接有加压套管(2),所述加压套管的外形与所述上定位环(4)的内环圈的形状相同,但尺寸略小。 1. An in vitro to suppress graft molding die, characterized in that on the chassis (7) is connected with the positioning ring (4) via a bracket (6), retaining ring (4) and the chassis (7 on the connection between wear) has (5) is encircled by a plurality of rods upstanding wall into the gate; shaft (I) forming bone with medullary cavity through positioning ring (4) is connected to the chassis of the upper (7) on; sleeved pressing sleeve (2) on the shaft (the I), the inner ring of the same shape as the positioning ring (4) with the outer shape of the pressing sleeve, but the size slightly small.
2.根据权利要求1所述的体外打压成型模具,其特征是,所述杆体(5)的长度大于所述上定位环(4 )顶面至所述底盘(7 )底面之间的距离。 In vitro according to claim 1 to suppress the mold, characterized in that the length of the rod (5) is greater than the positioning ring (4) to the top surface of the distance between the bottom of the chassis (7).
3.根据权利要求1所述的体外打压成型模具,其特征是,穿接所述杆体(5)的上穿接孔(9)开在所述上定位环(4)内环圈的边沿。 In vitro according to claim 1, wherein said pressure mold, characterized in that the upper edge (5) of the contact through holes (9) open in the positioning ring (4) connected to the inner ring through the stick.
4.根据权利要求1所述的体外打压成型模具,其特征是,所述支架(6)的上端固定连接在所述上定位环(4)上,所述支架(6)的下端固定连接在所述底盘(7)上。 In vitro according to claim 1, wherein said pressure mold, characterized in that the bracket (6) is fixedly connected to the upper end of the retaining ring (4) on the lower end of the bracket (6) is fixedly connected to said chassis (7).
5.根据权利要求1所述的体外打压成型模具,其特征是,所述支架(6)的上端通过调整螺母(3 )连接在所述上定位环(4 )上,所述支架(6 )的下端固定连接在所述底盘(7 )上。 The in vitro according to claim 1 to suppress the mold, characterized in that the upper end of the stand (6) of the adjusting nut (3) connected to the retaining ring (4) through said upper, said support (6) the lower end fixedly connected to the said chassis (7).
6.根据权利要求1所述的体外打压成型模具,其特征是,在所述底盘(7)的中部固接有定位凸块(10),在所述定位凸块(10)上开有连接所述轴杆(I)的螺孔。 6. The in vitro according to claim 1, pressure mold, characterized in that, in the middle of the chassis (7) is fixed to a positioning projection (10), the opening connecting the positioning projections (10) the screw shaft (I) is.
7.根据权利要求6所述的体外打压成型模具,其特征是,所述轴杆(I)的顶端为方杆体。 7. The in vitro according to claim 6, pressure mold, characterized in that the top of the shaft (I) is a square shaft.
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