CN103784220A - Multifunctional absorbable artificial lamina - Google Patents

Multifunctional absorbable artificial lamina Download PDF

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CN103784220A
CN103784220A CN201410011501.XA CN201410011501A CN103784220A CN 103784220 A CN103784220 A CN 103784220A CN 201410011501 A CN201410011501 A CN 201410011501A CN 103784220 A CN103784220 A CN 103784220A
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lamina
body
fixing piece
artificial
upper
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CN201410011501.XA
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CN103784220B (en
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陈哲
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陈哲
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Abstract

The invention discloses a multifunctional absorbable artificial lamina comprising a lamina body. The lamina body is composed of a base body, an outer fixing piece and an inner fixing piece. The base body is of an arched structure, and the outer fixing piece and the inner fixing piece are arranged on two sides of the base body respectively. Autogenous bone fragments can be implanted above the base body. An upper margin and a lower margin are arranged at two ends of the base body respectively and are arc-shaped protrusions respectively. A first arc-shaped groove and a second arc-shaped groove are formed in the lower surface of the upper margin and the upper surface of the lower margin respectively. The second arc-shaped groove of the upper surface of the lower margin of a previous lamina body can be in seamless joint with the first arc-shaped groove of the lower surface of the upper margin of a next lamina body. A plurality of suture holes used for suturing are symmetrically formed in one sides, close to the base body, of the outer fixing piece and the inner fixing piece respectively. The multifunctional absorbable artificial lamina is proper in physical performance and mechanical strength, and can be widely applied to injury repairing of various structures such as rear sides, rear lateral sides and outer lateral sides of cervical vertebras, thoracic vertebras, lumbar vertebras and caudal vertebras.

Description

多用途可吸收人工椎板 Multipurpose absorbable artificial lamina

技术领域 FIELD

[0001] 本发明涉及一种多用途可吸收人工椎板。 [0001] The present invention relates to a multipurpose absorbable artificial lamina.

背景技术 Background technique

[0002] 椎板切除术是脊柱外科比较常用的手术方式,通常指由脊柱后路切除部分或全部椎板,暴露椎管并清理椎管内的病变。 [0002] laminectomy spinal surgery is relatively common surgical procedure, usually by the removal of part or all of the posterior spinal lamina, clean and exposed spinal lesions in the spinal canal. 但椎板切除后,因手术破坏了脊柱后柱结构,引起相应脊椎不稳,并且在椎板缺损区形成瘢痕组织增生,与硬膜及神经根粘连,牵扯、压迫神经血管组织等,使术后症状复发,导致脊椎术后失败综合症(FBSS),严重影响脊柱手术的远期效果,如何预防这种并发症的发生,是脊柱外科领域亟待解决的课题。 However, after laminectomy, damage due to surgical spinal posterior column, causing a corresponding spine instability, and the formation of scar tissue hyperplasia in the laminectomy defect area, and nerve root and dural adhesions, involved, nerve tissue blood vessels, so that patients after the recurrence of symptoms, leading to failure of spinal surgery syndrome (FBSS), seriously affect the long-term effects of spinal surgery, how to prevent the occurrence of this complication, it is the field of spinal surgery urgently resolve the issue.

[0003] 人工椎板(artificial lamina, AL)是在人体脊柱椎板、后方或后外侧结构切除或因其他如病变等原因而造成缺失时,可作为对该切除或缺失部位进行植入修复时使用的一种人工植入体。 [0003] When the artificial lamina (artificial lamina, AL) in the lamina of the human spine, behind or after removal of the outside of the structure, or other reasons such as disease caused by deletion or the like, can be used as the site of implantation excision repair or deletion a method of using an artificial implant. 人工椎板对椎板切除术后所造成的继发性瘢痕粘连,导致压迫硬膜囊与神经根以及造成的脊柱不稳有预防作用,能有效地将硬膜与骶棘肌粗糙面隔离开来,可防止后源性纤维组织向椎管内生长,同时也能防止疤痕组织对硬膜囊和脊髓的压迫。 Secondary artificial lamina of scar adhesions after laminectomy caused, leading to nerve roots and the dural sac and spinal instability caused have a preventive effect, can effectively dura mater Erector isolated roughened surface to, prevents the growth of fibrous tissue derived within the spinal canal, but also to prevent scar tissue compression of the dural sac and spinal cord.

[0004] 理想的人工椎板应该符合人体椎板的生理形态结构和功能解剖特点,还应具备向功能性活骨定向分化以及能为利于新生骨细胞沉积和生长提供支持的能力、可完全修复椎板的缺损、參与围成椎管、保护硬膜囊免受压迫、避免粘连、稳定脊柱、防止术后再狭窄等并发症的发生等特点。 [0004] ideal artificial lamina should meet the physiological and morphological characteristics of human functional anatomy of lamina, should also have the function of living bone and directed differentiation can be for the benefit of new bone cells are deposited and the capacity to support the growth can be fully restored laminectomy defect involved surrounded spinal, dural sac is protected against compression, prevent adhesions, stabilize the spine and prevent restenosis and other characteristics of postoperative complications like.

[0005] 现有技术中采用的人工椎板主要存在如下缺点: [0005] employed in the prior art has the following disadvantages main artificial lamina:

[0006] 1、构型较简单,不能为新生骨细胞提供很好的沉积支撑,不利于新生骨的生长。 [0006] 1, the configuration is relatively simple, does not provide good support for the deposition of new bone cells, is not conducive to the growth of new bone. 如中国发明专利ZL02275837.2(授权公告日:2003.6.25)披露了一种人工椎板,该椎板是一个横截面为弧状曲面形式并同时具有轴向长度的基体,至少在其弧状曲面形式横截面中的内凹侧面的截面为圆弧形,该人工椎板的基体在各侧面上缺乏支撑,不利于新生骨细胞的沉积,也不能使手术后积血及时排出。 Chinese patent ZL02275837.2 invention (authorized announcement: 2003.6.25) discloses an artificial lamina, the lamina is a curved arcuate form in cross section having a base body and at the same axial length, at least in its arcuate form curved surface concave cross-section of a side cross section of an arc shape, the base of the artificial lamina lack of support on each side, is not conducive to the deposition of new bone cells, blood clots can not be discharged in time after surgery. 并且,该人工椎板不能用来修复微创手术造成的椎管开窗式小缺损,也不能用来修复严重创伤、脊柱肿瘤等大手术造成的脊柱大片的不规则缺损。 And, the artificial spinal lamina can not be used to repair a small windowed defect caused by minimally invasive surgery can not be used to repair severe trauma, major surgery irregular spinal tumors caused by large defects in the spine.

[0007] 2、现有技术的人工椎板诱导靶细胞分化为骨系细胞的能力较差,不利于诱导新骨的生长。 [0007] 2, the prior art artificial lamina induce target cell poorly differentiated ability of bone lineage cells, is not conducive to induce new bone growth.

发明内容 SUMMARY

[0008]为了克服现有人工椎板存在的机械强度不可控,不利于诱导新骨生长等的缺点,本发明提供一种机械强度合适,利于诱导新骨增生、融合的多用途可吸收人工椎板。 [0008] In order to overcome the mechanical strength of the prior artificial lamina uncontrollable, is not conducive to induce new bone growth such disadvantages, the present invention provides a suitable mechanical strength, facilitates new bone induced proliferation, fused multi-purpose absorbable artificial vertebral board.

[0009] 本发明采用的技术方案是: [0009] aspect of the present invention is that:

[0010]多用途可吸收人工椎板,包括椎板本体,其特征在于:所述的椎板本体由具有拱形结构的基体以及设在基体两侧的外侧固定片和内侧固定片构成,所述的基体上方可植入自体骨碎块,所述的基体的两端分别设置有上缘和下缘,所述的上缘和下缘分别为弧形突起,所述的上缘的下表面和所述的下缘的上表面上分别开设有第一弧形凹槽和第二弧形凹槽,上一块椎板本体下缘的上表面的第二弧形凹槽可与下一块椎板本体上缘的下表面的第一弧形凹槽无缝拼接;所述的内侧固定片和外侧固定片上的靠近基体的一侧分别对称设置有若干个用于缝合的缝合孔。 [0010] Multipurpose absorbable artificial lamina, the lamina comprising a body, wherein: said body is constituted by a lamina having a base structure and an outer arcuate base disposed on the both sides of the fixing piece and fixing the inner sheet, the the lower surface of the base body of said implant only autogenous bone fragments, both ends of the base body are respectively provided with upper and lower edges, said upper and lower edges are arc-shaped protrusion, said upper edge upper and lower edge of the upper surface of each recess defines a first arc and a second arc-shaped grooves, arcuate grooves on the second surface may be a lower lamina with the lower edge of the body on a lamina the upper edge of the lower surface of the body of the seamless first arcuate grooves; side close to the base on the inside and the outside of the fixing plate fixing pieces are symmetrically disposed with a plurality of suture apertures for suturing.

[0011] 进一步,所述的内侧固定片的内表面设有第一斜面,所述的第一斜面的斜度与棘突基底部固定连接处的形状相适配。 [0011] Further, the inner surface of the inner side of the fixing piece is provided with a first inclined surface shape of the first inclined surface with inclination fixedly connected at the bottom of the base adapted to the spinous process.

[0012] 进一步,所述的外侧固定片的外表面设有第二斜面,所述的第二斜面的斜度与另一块椎板本体的内侧固定片上的第一斜面相配合使用,可通过缝合孔实现两块椎板本体的侧向连接。 [0012] Further, an outer surface of said outer fixing piece is provided with a second inclined surface, a first inclined surface on the inner side of the second inclined slope of the body with another lamina of a fixing piece cooperating used, by stitching two holes to achieve lateral connecting body lamina.

[0013] 进一步,所述的缝合孔的直径为I~1.5mm。 [0013] Further, the diameter of the suture hole is I ~ 1.5mm.

[0014] 本发明多用途可吸收人工椎板的单块、或多块不同组合,广泛适用于颈椎、胸椎、腰椎、骶尾椎后侧入路、或后外侧入路的各种微创开窗手术后局部椎管壁缺损的修补,或后入路手术中作椎板全切术(双侧椎板和棘突均切除)的术后修补,甚至适用于颈椎后路单开门术、双开门术、或“Z”形椎管成形术后局部开门侧椎管壁的填补。 Lateral approach of the [0014] purpose of the present invention can absorb artificial lamina monolithic, or blocks of different compositions, widely used in the cervical, thoracic, lumbar, sacral vertebrae posterior approach, a variety of minimally invasive or open after surgical partial window canal wall defect repair, or post-surgical approach for hysterectomy lamina (lamina and spinous process have bilateral excision) after the repair, even to the posterior cervical open-door operation, bis open surgery, or "Z" shaped fill partially open side wall of the canal after laminoplasty. 能覆盖各种不规则缺损区,重建椎管的密闭状态,并保持椎管正常的矢状径和横径。 To cover various irregular defects, reconstruction of the spinal canal sealed state, and maintaining normal spinal sagittal diameter and diameter.

[0015] 本发明所述的人工椎板的基体的正视图可以是长方形或正方形,其尺寸可以是: [0015] a front view of the base of the artificial lamina of the present invention may be rectangular or square, the size of which may be:

[0016] 正方形的尺寸: [0016] The size of the square:

[0017] 10*10mm, 15* 15mm, 20*20mm, 25*25mm, 30*30mm, 35*35mm, 40*40mm,以此类推; [0017] 10 * 10mm, 15 * 15mm, 20 * 20mm, 25 * 25mm, 30 * 30mm, 35 * 35mm, 40 * 40mm, and so on;

[0018] 长方形的尺寸: [0018] The size of the rectangle:

[0019] 10*15mm, 10*20mm, 10*25mm,以此类推; [0019] 10 * 15mm, 10 * 20mm, 10 * 25mm, and so on;

[0020] 15*20mm, 15*25mm, 15*30mm,以此类推; [0020] 15 * 20mm, 15 * 25mm, 15 * 30mm, and so on;

[0021] 20*25mm, 20*30mm, 20*35mm,以此类推; [0021] 20 * 25mm, 20 * 30mm, 20 * 35mm, and so on;

[0022] 25*30mm, 25*35mm, 25*40mm,以此类推; [0022] 25 * 30mm, 25 * 35mm, 25 * 40mm, and so on;

[0023] 35*40mm, 35*45mm, 35*50mm,以此类推。 [0023] 35 * 40mm, 35 * 45mm, 35 * 50mm, and so on.

[0024] 本发明多块人工椎板上下相互叠合拼接,适用于修复各种长度的脊柱椎管壁缺损。 [0024] The present invention is a plurality of artificial lamina vertically superimposed on each other splice for repair of various lengths spinal canal wall defect. 既保证了椎管的密闭性,防止上方植入的自体骨碎块落入椎管,有效阻挡瘢痕组织爬入椎管;同时当人体活动时,整体可随着椎体作伸展、旋转等活动,模拟了人体生理状态;并且在运动过程中,上下缘在弧形凹槽中作轨道式转动,使上下椎板之间始终保持良好的覆盖状态,保证了椎管的密封状态。 Both to ensure the tightness of the spinal canal, the implant to prevent the upper body from falling into the canal bone fragments, effectively blocking scar tissue climb into the spinal canal; simultaneously active when the body, the vertebral body as a whole may be extended, rotation and other activities simulated physiological state; and during the movement, the upper and lower edges of orbiting type rotating arcuate groove, so that always maintain a good state between the upper and lower cover lamina, to ensure that the sealing state of the spinal canal.

[0025] 两块人工椎板的侧向连接,其中间部分外侧固定片与内侧固定片的叠合起了中间横梁作用,在上方植入自体骨碎块后不易坍塌。 [0025] The two lateral connecting artificial lamina, wherein the outer overlapping portion between the fixing piece and the inner piece from the fixed middle cross effect, easily collapsed after implantation above the autogenous bone fragments. 人工椎板的侧向连接适用于各种脊柱椎管后方结构、后外侧结构、或外侧方结构同时不规则缺损的修补。 Artificial lateral lamina is applied to various spinal canal connecting the rear structure, the outer structure, while the structure or the outer side of the irregular defect repair.

[0026] 本发明待椎板上方的骨碎块增生、融合后,重建的椎管形态、有效的矢状径和横径、有效椎管容积等均接近正常生理状态。 The upper lamina bone fragments to be [0026] present invention hyperplasia, fusion, spinal reconstruction morphology, sagittal diameter and the effective diameter, the effective canal size etc. near normal physiological state.

[0027] 本发明人工椎板使得新生骨能够按照人工椎板的既定形状快速生长;同时由于人工椎板的材料无毒、具有良好生物相容性,并且该材质诱导靶细胞分化为骨系细胞的能力较强,故更加利于新骨的发育。 Artificial lamina invention [0027] This makes rapid growth of new bone can be established in accordance with the shape of the artificial lamina; artificial lamina and because of non-toxic material, having a good biocompatibility, the material and induce target cells to differentiate into bone cells lines the ability, therefore more conducive to the development of new bone. 人工椎板在使用过程中被逐渐降解,最終在新骨形成时完全降解且被人体吸收,具有很高的安全性。 Artificial lamina is progressively degraded during use, ultimately degrade completely new bone formation and is absorbed by the body, having high safety.

[0028] 本发明的有益效果体现在:[0029] 1、物理性能、机械强度、组织相容性、体内完全吸收时间等均较理想,并没有免疫反应性、没有细菌或病毒传染风险; [0028] Advantageous effects of the present invention are embodied in: [0029] 1, physical properties, mechanical strength, histocompatibility, complete absorption in vivo compared over time, and no immunoreactivity, there is no risk of bacterial or viral infection;

[0030] 2、人工椎板使用后使术者能充分利用术中减压时得到的自体碎骨块进行植骨处理,重建脊柱后方结构的完整性和稳定性; [0030] 2, the use of artificial lamina so that the surgeon can make full use of autologous bone fragments obtained during bone graft surgery reduced pressure treatment, the integrity and stability of the reconstruction of the spine behind the structure;

[0031] 3、在植骨块没相互融合、形成新的椎板前,人工椎板能提供足够大的支撑力量,不让植骨块塌陷,并防止瘢痕爬入;而在植骨块相互融合,形成新的、足够坚强的椎板后,能自我溶解、彻底吸收,不留异物,对周围组织细胞无任何毒副作用; [0031] 3, the graft is not integrated with each other, before the formation of a new lamina, artificial lamina to provide sufficient support force, let graft collapse, and prevents climb into the scar; in each fusion graft after the formation of new, strong enough lamina, self-dissolve, completely absorbed, leaving no foreign body, without any side effects on surrounding tissue cells;

[0032] 4、能提供足够的机械强度,保证其上方自体植骨碎块增生、融合,重新形成完整的骨性椎管; [0032] 4, to provide sufficient mechanical strength to ensure that the upper autograft hyperplasia fragments, fusion and re-form a complete bony canal;

[0033] 5、能有效阻挡椎管外瘢痕增生、压迫、粘连硬膜囊和神经根; [0033] 5, can effectively block outside the spinal canal scar, compression, adhesion dural sac and nerve roots;

[0034] 6、植入体内后,人工椎板完全能维持有效机械强度2-3个月,为自体植骨碎块的增生、融合提供足够的时间; [0034] 6, after implantation in vivo, artificial lamina fully effective mechanical strength can be maintained for 2-3 months, for the proliferation of autologous bone fragments, fusion to provide sufficient time;

[0035] 7、人工椎板在体内最终能彻底吸收,无异物残留; [0035] 7, artificial lamina eventually completely absorbed in the body, xeno residue;

[0036] 8、人工椎板在体内与邻近组织、细胞的相容性极佳,并且无任何毒副作用等。 [0036] 8, artificial lamina adjacent to a tissue in vivo, cell excellent compatibility, and without any side effects and the like.

附图说明 BRIEF DESCRIPTION

[0037] 图1是本发明整体结构示意图。 [0037] FIG. 1 is an overall schematic view of the present invention. [0038] 图2是本发明侧向结构示意图。 [0038] FIG. 2 is a side schematic view of the present invention.

[0039] 图3是本发明BB'处截面不意图。 [0039] FIG. 3 is a cross-section according to the present invention, BB 'is not intended to place.

[0040] 图4是本发明AA'处截面示意图。 [0040] FIG. 4 of the present invention is an AA 'cross-section of the FIG.

[0041] 图5a是本发明两块人工椎板上下叠合拼接示意图。 [0041] Figure 5a is a vertically stacked splice two schematic artificial lamina of the present invention.

[0042] 图5b是本发明两块人工椎板上下叠合拼接的侧视图。 [0042] FIG. 5b is a side view of two vertically stacked splice artificial lamina of the present invention.

[0043] 图6是本发明局部开窗手术的使用状态示意图。 [0043] FIG. 6 is a schematic view partially in fenestration use of the present invention.

[0044] 图7是本发明两块椎板侧向连接示意图。 [0044] FIG. 7 is a lateral two lamina connection diagram of the present invention.

[0045] 图8是局部开窗手术后,椎板、后方结构部分缺损,人工椎板植入示意图(手术中切下的自体骨碎块回植于人工椎板上方)。 [0045] FIG. 8 is a partial rear fenestration, lamina rear portion of the defect structure, a schematic view of an artificial implant lamina (surgery under autogenous bone fragments cut lamina artificial replanted above).

[0046]图9是全椎板切除手术后,双侧椎板、棘突、后方结构等完全缺损,人工椎板植入示意图(手术中切下的自体骨碎块回植于人工椎板上方)。 [0046] FIG. 9 is a post-laminectomy surgery, bilateral laminae, spinous process, is completely deficient in the rear structure, lamina artificial implant of autologous bone fragments schematic (surgery excised above the artificial lamina replanted ).

[0047] 图10是脊柱后侧和外侧结构同时不规则缺损时,单块人工椎板修复示意图。 [0047] FIG. 10 is a posterior and lateral spinal structures while simultaneously irregular defect repair monolithic artificial lamina FIG.

[0048] 图11是脊柱后侧和外侧结构同时不规则缺损时,多块人工椎板侧方拼接修复示意图。 [0048] FIG. 11 is a posterior and lateral spine structure is irregular defect simultaneously, a plurality of artificial lamina schematic side splicing repair.

具体实施方式 Detailed ways

[0049] 参照图1至图9,人工椎板,包括椎板本体,所述的椎板本体由具有拱形结构的基体I以及设在基体I两侧的外侧固定片2和内侧固定片3构成,所述的基体I上方可植入自体骨碎块,所述的基体I的两端分别设置有上缘和下缘,所述的上缘和下缘分别为弧形突起4,所述的上缘的下表面和所述的下缘的上表面分别开设有第一弧形凹槽5和第二弧形凹槽6,上一块椎板本体下缘的上表面的第二弧形凹槽6可与下一块椎板本体上缘的下表面的第一弧形凹槽5无缝拼接;所述的外侧固定片和内侧固定片上的靠近基体I的一侧分别对称设置有若干个用于缝合的缝合孔7。 [0049] Referring to FIGS. 1 to 9, artificial lamina, the lamina comprising a body, said body is made of lamina I and a base plate having an arcuate outer fixed structure I provided on both sides of the base body 2 and the inner sheet 3 is fixed configuration, the implant before the matrix I autogenous bone fragments, the ends of the base I are respectively provided with upper and lower edges, said upper and lower edges of the arcuate projections 4, respectively, the the lower surface of the upper edge and the lower edge of the upper surface of each arcuate recess 5 defines a first and second arcuate grooves 6, the upper surface of the second arcuate recess on a lower edge of the lamina of the body 5 groove 6 can be spliced ​​seamlessly with the first surface of the lower arcuate groove on the lower edge of the body of a lamina; close to the base of said outer body and the inner fixing piece fixing piece side I are symmetrically provided with a plurality of the suture hole in the suture 7.

[0050] 进一步,所述的内侧固定片3的内表面设有第一斜面31,所述的第一斜面31的斜度与棘突基底部固定连接处的形状相适配。 [0050] Further, the inner surface of the inner side of the fixing piece 3 is provided with a first inclined surface 31, the shape fixedly connected at the base of the spinous process and the inclination of the first inclined surface 31 is adapted.

[0051] 进一步,所述的外侧固定片2的外表面设有第二斜面21,所述的第二斜面21的斜度与另一块椎板本体的内侧固定片3上的第一斜面31相配合使用,可通过缝合孔7实现两块椎板本体的侧向连接。 [0051] Further, an outer surface of said outer stationary plate 2 is provided with a second inclined surface 21, the first inclined surface 3 on the inner side of the second slope a slope with another lamina 21 of the body 31 of the fixing piece with the use of two laminae can achieve lateral connecting body by a suture hole 7.

[0052] 进一步,所述的缝合孔7的直径为I~1.5mm。 [0052] Further, according to the diameter of suture holes 7 I ~ 1.5mm.

[0053] 本发明多用途可吸收人工椎板单块或多块的不同组合,广泛适用于颈椎、胸椎、腰椎、骶尾椎后侧入路、或后外侧入路微创开窗手术后局部椎管壁缺损的修补,或后入路手术中作椎板全切术(双侧椎板和棘突均切除)的术后修补,甚至适用于颈椎后路单开门术、双开门术、或“Z”形椎管成形术后局部开门侧椎管壁的填补。 [0053] The purpose of the present invention may be a different combination of absorbent artificial lamina monolith or block, widely used in the cervical, thoracic, lumbar, sacral vertebrae posterior approach, minimally invasive lateral approach, or after partial fenestration approach surgery for spinal lamina hysterectomy wall defect repair, or after (lamina and spinous process have bilateral excision) after the repair, even to the posterior cervical surgery single door, double door operation, or "Z" shaped fill partially open side wall of the canal after laminoplasty. 能覆盖各种不规则缺损区,重建椎管的密闭状态,并保持椎管正常的矢状径和横径。 To cover various irregular defects, reconstruction of the spinal canal sealed state, and maintaining normal spinal sagittal diameter and diameter.

[0054] 如附图8所示的腰椎后路手术:局部开窗手术后,椎板、后方结构部分缺损,进行人工椎板植入、修补,并将术中切下的自体骨碎块回植于人工椎板上方。 [0054] As shown in FIG. 8 lumbar surgery: after topical fenestration, lamina rear portion of the defect structure, lamina artificial implantation, repair, and autologous bone fragments cut back surgery planted in the artificial over the lamina.

[0055] 如附图9所示的腰椎后路手术:腰椎全椎板切除手术后,双侧椎板、棘突、后方结构等完全缺损,进行人工椎板植入、修补,并将术中切下的自体骨碎块回植于人工椎板上方。 Lumbar surgery as shown in [0055] Figure 9: after lumbar laminectomy surgery, bilateral laminae, spinous process, is completely deficient in the rear structure, lamina artificial implantation, repair, and intraoperative autogenous bone fragments cut above the artificial lamina replantation.

[0056] 如附图10所示, 脊柱后侧和外侧结构同时不规则缺损,缺损较小时,可直接用人工椎板单块进行修复,再在人工椎板外侧行自体骨碎块的植骨处理,重建脊柱椎管的完整性和密封性。 [0056] As shown in the drawings, posterior and lateral spine structures while irregular defect, the defect is small, can be directly used artificial lamina 10 fixes the monolith, then autologous bone graft in the bone fragments artificial lamina outer row processing, reconstruction of spinal canal integrity and tightness.

[0057] 如附图11所示,脊柱后侧和外侧结构同时不规则缺损,缺损较大时,可用人工椎板多块侧方拼接进行修复,再在人工椎板外侧行自体骨碎块的植骨处理,重建脊柱椎管的完整性和密封性。 [0057] FIG, posterior and lateral spine structures while irregular defect, the defect is large, a plurality of lamina can be manually splicing repair side as indicated by reference 11, and then in artificial lamina outer row autologous bone fragments grafting process, reconstruction of spinal canal integrity and tightness.

[0058] 本实施例中人工椎板的制作材料为医用可吸收材料,主要采用天然生物材料和人工合成材料二类。 [0058] forming material of the present embodiment is a medical artificial lamina absorbable material, mainly natural biological materials and two types of synthetic material. 前者主要用胶原纤维、甲壳素(壳聚糖)、氧化纤维素等制备。 The former preparing a collagen fiber, chitin (chitosan), with oxidized cellulose and the like. 后者主要包括聚乳酸、聚四氟乙烯、硅橡胶等。 The latter mainly include polylactic acid, polytetrafluoroethylene, silicone rubber.

[0059] 相较于上述两种材料,特别地可采用以重组人血清白蛋白为原料交联合成的固体材料,重组人血清白蛋白材料具有以下优势:1.人源材料的低免疫性;2.无病毒感染风险; [0059] Compared to the above-mentioned two materials, in particular to be used as raw material recombinant human serum albumin cross-linked to a solid material, a material recombinant human serum albumin has the following advantages: a low immune human material;. 2. no risk of viral infection;

3.可控的降解速度;4.可调整的机械强度;5.极佳的生物相容性;6.降解产物安全并有营养修复组织作用。 3. controllable degradation rate; 4 adjustable mechanical strength; 5 excellent biocompatibility; 6 degradation product safety and nutritional effect tissue repair.

[0060] 本实施例中人工椎板的制作材料,特别地也可采用能生物降解的人工合成骨:纳米晶胶原基骨修复材料。 [0060] forming material of the present embodiment, the artificial lamina, may also be employed in particular biodegradable synthetic bone: Nanocrystalline collagen-based bone repair material. 纳米晶胶原基骨修复材料是一种仿生骨,具有良好的生物相容性,无免疫排斥反应和交叉感染疾病的可能,并能被成骨细胞和破骨细胞作用,在降解的同时形成新骨。 Nanocrystalline collagen-based bone repair material is a biomimetic bone, having a good biocompatibility, no immune rejection and possible cross-infection of disease, and can be broken osteoblasts and of bone cells, formed at the same time a new degradation bone.

[0061] 本说明书实施例所述的内容仅仅是对发明构思的实现形式的列举,本发明的保护范围不应当被视为仅限于实施例所陈述的具体形式,本发明的保护范围也及于本领域技术人员根据本发明构思所能够想到的等同技术手段。 [0061] The present embodiment described in the specification are merely concepts include the realization form of the invention, the scope of the present invention should not be regarded as limited to the embodiments specific forms set forth, the scope of the present invention and also to It means equivalents skilled in the art that the inventive concept can be contemplated.

Claims (4)

1.多用途可吸收人工椎板,包括椎板本体,其特征在于:所述的椎板本体由具有拱形结构的基体以及设在基体两侧的外侧固定片和内侧固定片构成,所述的基体上方可植入自体骨碎块,所述的基体的两端分别设置有上缘和下缘,所述的上缘和下缘分别为弧形突起,所述的上缘的下表面和所述的下缘的上表面上分别开设有第一弧形凹槽和第二弧形凹槽,上一块椎板本体下缘的上表面的第二弧形凹槽可与下一块椎板本体上缘的下表面的第一弧形凹槽无缝拼接;所述的内侧固定片和外侧固定片上的靠近基体的一侧分别对称设置有若干个用于缝合的缝合孔。 1. Multipurpose absorbable artificial lamina, the lamina comprising a body, wherein: said body is constituted by a lamina having a base structure and an outer arcuate base disposed on the both sides of the fixing piece and fixing the inner sheet, the on the lower surface of the substrate before implantation of autologous bone fragments, both ends of the base body are respectively provided with upper and lower edges, said upper and lower edges are arcuate projections, and said upper edge the lower edge of the upper surface of each recess defines a first arc and a second arc-shaped groove, the second arcuate recess on an upper surface of the lower edge of the body may be lamina and the lower body of a lamina the lower surface of the first arcuate groove seamless upper edge; side close to the base on the inside and the outside of the fixing plate fixing pieces are symmetrically disposed with a plurality of suture apertures for suturing.
2.如权利要求1所述的人工椎板,其特征在于:所述的内侧固定片的内表面设有第一斜面,所述的第一斜面的斜度与棘突基底部固定连接处的形状相适配。 2. The artificial lamina according to claim 1, wherein: the inner surface of the inner side of the fixing piece is provided with a first inclined surface, the inclination of the base portion of the first spinous process and fixedly connected at the inclined surface adapted shape.
3.如权利要求2所述的人工椎板,其特征在于:所述的外侧固定片的外表面设有第二斜面,所述的第二斜面的斜度与另一块椎板本体的内侧固定片上的第一斜面相配合使用,可通过缝合孔实现两块椎板本体的侧向连接。 Said second inner fixed slope a slope with another lamina outer surfaces of the body of the fixing piece is provided with a second outer inclined surface: artificial lamina as claimed in claim 2, characterized in that a first inclined surface cooperating on-chip use, lamina two lateral connecting body can be achieved by stitching holes.
4.如权利要求3所述的人工椎板,其特征在于:所述的缝合孔的直径为I~1.5mm。 4. The artificial lamina according to claim 3, wherein: the diameter of the suture hole is I ~ 1.5mm.
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