WO2023015839A1 - 一种后植骨高度可调的融合器 - Google Patents

一种后植骨高度可调的融合器 Download PDF

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Publication number
WO2023015839A1
WO2023015839A1 PCT/CN2022/070665 CN2022070665W WO2023015839A1 WO 2023015839 A1 WO2023015839 A1 WO 2023015839A1 CN 2022070665 W CN2022070665 W CN 2022070665W WO 2023015839 A1 WO2023015839 A1 WO 2023015839A1
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Prior art keywords
slider
section
hole
main body
groove
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PCT/CN2022/070665
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English (en)
French (fr)
Inventor
赵红卫
韩璐璐
黄孝敏
Original Assignee
上海锐植医疗器械有限公司
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Priority to EP22801328.0A priority Critical patent/EP4154850A1/en
Publication of WO2023015839A1 publication Critical patent/WO2023015839A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • A—HUMAN NECESSITIES
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • A61F2/447—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2002/30383—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
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    • A61F2002/3039—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove with possibility of relative movement of the rib within the groove
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    • A—HUMAN NECESSITIES
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    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30405—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves
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    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30433—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels, rivets or washers e.g. connecting screws
    • A—HUMAN NECESSITIES
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A—HUMAN NECESSITIES
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    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30507—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a threaded locking member, e.g. a locking screw or a set screw
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A61F2002/30556—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting thickness
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Definitions

  • the invention relates to the technical field of fusion devices, in particular to a height-adjustable posterior bone graft fusion device.
  • Spinal degenerative disease is a common disease, among which the treatment of lumbar degenerative spondylolisthesis, segmental instability, intervertebral discogenic disease, traumatic spondylolisthesis, etc. generally requires lumbar fixation and fusion.
  • the application of the intervertebral fusion device can maintain the height of the intervertebral space, restore the support of the anterior and middle columns, increase the capacity of the intervertebral foramen, relieve the compression of the nerve roots, and prevent the collapse of the intervertebral space and the formation of pseudarthrosis. With the development of minimally invasive surgery, higher requirements are placed on the design of intervertebral fusion devices.
  • the purpose of the present invention is to provide a fusion device with adjustable height of posterior bone graft.
  • the fusion device is first inserted into the intervertebral space, and the height needs to be adjusted according to the height of the intervertebral space, and then the bone in the fusion device is grafted (ie, the posterior bone graft).
  • the invention fundamentally solves the problem that the existing height-adjustable fusion device cannot fully graft bone.
  • the fuser has a novel structural design, convenient operation, and a large space for the bone graft chamber. Through the large opening at the tail of the cage, combined with the supporting special bone grafting tools, it can ensure that the autologous bone and allograft can be conveniently inserted after the cage is implanted and stretched. The bone is filled into the bone graft chamber of the cage.
  • the posterior bone graft of the present invention provides a height-adjustable fusion device in order to achieve the above-mentioned purpose and other advantages according to the present invention, including:
  • a main body a blade assembly fitted with the main body, and a push assembly fitted with the blade assembly, and an end cover is interference-fitted on one end surface of the main body;
  • the main body includes a screw section, a side section integrally connected with both ends of the screw section, and an opening section integrally connected with the side section, wherein a threaded through hole is provided on the screw section, and the opening There is an open through hole on the segment, and the central axis of the open through hole is at the same height as the central axis of the threaded through hole;
  • the push assembly includes a first U-shaped base and a threaded rod affixed to the first U-shaped base, the threaded section of the threaded rod extends out of the end face of the first U-shaped base, and the square cylindrical section of the threaded rod Through the first U-shaped base and extending from an end surface of the first U-shaped base away from the threaded section, a pin is affixed to the end of the first U-shaped base close to the threaded rod, and the position of the pin is perpendicular to the axial direction of the threaded rod ;
  • the threaded section of the threaded rod matches the threads of the threaded through hole, and the first U-shaped base is fitted with the blade assembly.
  • a limiting sliding groove is provided on the side section, and the position of the centerline axis of the limiting sliding groove is at the same height as the centerline of the threaded through hole of the main body.
  • the first U-shaped base includes a first end panel, a first side panel integrally connected with both ends of the first end panel, a slider fixed obliquely on the first side panel, and a fixed
  • the limit block on the first side panel, the limit block and the first side panel are arranged perpendicular to each other, and the limit block extends from the inner wall of the first side panel to the direction of the slider and extends out of the first side panel side panel.
  • the limiting block cooperates with the limiting sliding groove on the main body.
  • a fitting groove is formed on an opposite inner wall of the opening through hole, and a first screw thread is formed on the inner wall of the fitting groove in the opening through hole.
  • an end cover is interference-fitted on the opening section, and the end cover includes an arc-shaped plate with a through hole in the middle and an elastic piece integrally connected with the arc-shaped plate.
  • An elastic piece is integrally connected to the side, and the elastic piece is in interference fit with the fitting groove, and a connection section is provided on the end cover, and the connection section is used to cooperate with the workpiece.
  • four sliders are affixed to the first side panel, and two first sliders are arranged on the end of the first side panel, and the two first sliders are obliquely fixed on the same inclined direction On the first side panel, and one end of the first slider extends out of the first side panel.
  • the lower end of the first side panel is provided with two second sliders, and the two second sliders are obliquely fixed on the first side panel along the same inclination direction, and the second sliders One end of one end extends out of the first side panel, and the second slider and the first slider are symmetrically arranged on the two first side panels with respect to the horizontal centerline of the first side panel, and the second slider and the first slider are connected to the first side panel.
  • the main axis is at an angle.
  • the blade assembly includes a first blade and a second blade that is symmetrically fitted to the main body, and the first blade includes a first blade tooth with a hole in the middle and is fixed to the first blade tooth. connected to the first connecting coaming plate, and a first matching hole is opened at one end of the first connecting coaming plate close to the opening section.
  • the second blade includes a second blade tooth with a hole in the middle and a second connecting shroud fixedly connected to the second blade tooth, and a second mating plate is provided at one end of the second connecting shroud near the opening section. hole.
  • a first slider groove is symmetrically provided on an opposite side of the first connecting wall, the first slider groove matches the first slider, and an opposite side of the second connecting wall
  • a second slider groove is arranged symmetrically on the top, and the second slider groove matches the second slider.
  • the first slider groove and the second slider groove form an oblique angle with the horizontal center line of the main body.
  • Fixing holes are respectively opened on the two side sections, and a limit block is fixed in the fixing holes, and a buckle groove is opened on the end of the side section close to the end cover, and a buckle hole is opened in the buckle groove
  • a displacement groove is provided on the end surface of the first U-shaped base corresponding to the limiting block, and the limiting block moves in the displacement groove, and a stabilizing bar is fixedly connected between the two first U-shaped bases.
  • the end cover includes a straight section, buckle sections fixed at both ends of the straight section, and buckles integrally connected with the buckle section, and the buckle matches the buckle hole.
  • the present invention compares with prior art, and its beneficial effect is:
  • the structural design of the fusion device is convenient and simple to operate, the bone grafting compartment in the main body has a large space, and the large opening at the tail of the fusion device ensures that after the fusion device is implanted, the autologous bone and allogeneic bone can be better filled into the fusion
  • the bone graft chamber in the main body of the device due to the release of the space of the bone graft chamber and the large opening at the tail, can better cooperate with the endoscope for operation, making the operation more accurate and faster.
  • Fig. 1 is a three-dimensional structural schematic diagram of a height-adjustable fusion device according to the present invention
  • Fig. 2 is a three-dimensional structural schematic diagram of the pushing assembly of the height-adjustable fusion device according to the present invention
  • FIG. 3 is a schematic diagram of a three-dimensional exploded structure of a blade assembly of a height-adjustable fusion device according to the present invention
  • FIG. 4 is a schematic diagram of a three-dimensional exploded structure of a blade assembly of a height-adjustable fusion device according to the present invention when the fusion device is stretched;
  • Fig. 5 is a schematic diagram of a three-dimensional exploded structure of the cage of the blade assembly of the height-adjustable cage according to the present invention.
  • a height-adjustable fusion device includes: a main body 1, a blade assembly 2 fitted with the main body 1, and a push assembly 3 fitted with the blade assembly 2, the main body An end cover 4 is interference-fitted on one end surface of 1, and when the blade assembly 2 is in a closed state, the cage is put into the space of the vertebral body through the cage holder;
  • the main body 1 includes a screw section 11, and the The two ends of the screw section 11 are respectively integrally connected to the side section 12 and the opening section 14 integrally connected to the side section 12, wherein the screw section 11 is provided with a threaded through hole, and the opening section 14 is provided with There is an open through hole, the central axis of the open through hole is at the same height as the central axis of the threaded through hole;
  • the push assembly 3 includes a first U-shaped base 33 and a Threaded rod 31, the threaded section of the threaded rod 31 extends out of the end face of the first U-shaped base 33, the square cylindrical
  • the threaded rod 31 is displaced in the threaded through hole by driving the threaded rod 31 to rotate. Further, the first U-shaped base 33 is driven to move in a straight line, so that the blade assembly 2 moves toward each other in the vertical direction, the fusion cage is stretched to reach the height required by the patient, and the tool that cooperates with the stretch is withdrawn, and the main body 1 and the blade assembly 2 form a joint.
  • a limiting sliding groove 13 is provided on the side section 12, and the position of the centerline axis of the limiting sliding groove 13 is at the same height as the centerline of the threaded through hole of the main body 1.
  • the first U-shaped base 33 moves in the axial direction to realize the limit.
  • a fitting groove 16 is provided on the opposite inner wall of the opening through hole, and a first thread 15 is provided on the inner wall of the opening through hole located in the fitting groove 16.
  • the first U-shaped base 33 includes a first end panel, a first side panel integrally connected with both ends of the first end panel, and a slider 35 obliquely fixed on the first side panel
  • the limiting block 34 fixed on the first side panel, the limiting block 34 and the first side panel are arranged perpendicular to each other, and the limiting block 34 extends from the inner wall of the first side panel to the side of the slider 35
  • the direction extends and extends out of the first side panel
  • four sliders are fixedly connected on the first side panel
  • two first sliders 35 are arranged on the end of the first side panel
  • the two first sliders 35 is obliquely fixed on the first side panel along the same inclination direction
  • one end of the first slider 35 extends out of the first side panel
  • the lower end of the first side panel is provided with two second sliders 36
  • the two second sliders 36 are obliquely fixed on the first side panel along the same inclination direction
  • one end of the second slider 36 extends out
  • the vane assembly 2 includes a first vane 21 and a second vane 22 that is symmetrical to and fits with the main body 1.
  • the first vane 21 includes a first vane tooth 211 with a hole in the middle and a The first connecting shroud 213 to which the first blade tooth 211 is fixedly connected, a first matching hole 214 is opened at one end of the first connecting shroud 213 close to the opening section 14, and the blade tooth structure is not limited to a spike, a pyramid-shaped
  • the second blade 22 includes a second blade tooth 221 with a hole in the middle and a second connecting shroud 222 fixedly connected to the second blade tooth 221, and the second connecting shroud 222 is close to the opening section 14
  • a second matching hole 224 is opened at one end, and a first slider groove 212 is symmetrically arranged on an opposite side of the first connecting wall 213, and the first slider groove 212 is matched with the first slider 35, so that A second slider groove 223 is symmetrically arranged on an opposite side
  • the first slider groove 212 and the second slider groove The slot 223 and the horizontal centerline of the main body 1 form an oblique angle.
  • the blade assembly 2 is driven to move in a straight line.
  • the first slider 35 and the second slider 36 are respectively along the The first slider groove 212 and the second slider groove 223 slide, and because the first slider groove 212 and the second slider groove 223 are inclined, when the first slider 35 and the second slider 36 respectively When moving in the first slider groove 212 and the second slider groove 223, at this moment, through the interaction force between the first slider 35 and the second slider 36 and the first slider groove 212 and the second slider groove 223 , so that the first U-shaped base 33 is subjected to a vertical thrust, and then drives the first blade 21 and the second blade 22 to move away from the main body 1 respectively.
  • an end cover 4 is interference-fitted on the opening section 14, and the end cover 4 includes an arc-shaped plate with a through hole in the middle and an elastic piece integrally connected with the arc-shaped plate, and the arc-shaped plate
  • An elastic sheet is integrally connected on one opposite side, and the elastic sheet is in interference fit with the fitting groove 16, and the end cover 4 is provided with a connecting section, which is used for connecting with the workpiece to be used.
  • the two side sections 12 are provided with fixing holes 121 respectively, and the limit blocks 34 are fixed in the fixing holes 121, and the side section 12 is provided with a buckle groove 123 on the end close to the end cover 4,
  • a buckle hole 124 is opened in the buckle groove 123
  • a displacement groove 331 is opened on the end face of the first U-shaped base 33 corresponding to the stop block 34, and the stop block 34 is positioned in the displacement groove 331 to move
  • a stabilizing rod 5 is fixedly connected between the two first U-shaped bases 33, and by rotating the threaded rod 31, the stop block 34 is positioned in the displacement groove 331 to move horizontally, so that the movement of the whole structure is more stable
  • the first A stabilizing bar 5 is arranged between the U-shaped bases 33 to increase the structural strength of the first U-shaped base 33 .
  • the end cover 4 includes a straight section 41, a buckle section 42 fixed at both ends of the straight section 41 and a buckle 43 integrally connected with the buckle section 42, the buckle 43 and the buckle
  • the buckle holes 124 are matched, and the end cover 4 is engaged with the buckle holes 124 through the buckle 43 , so that the end cover 4 is more firmly connected to the side section 12 .

Abstract

一种后植骨高度可调融合器，包括：主体(1)、与主体(1)相嵌合的叶片组件(2)及与叶片组件(2)嵌合设置的推动组件(3)，主体(1)的一端面上过盈配合有端盖(4)；主体(1)包括螺杆段(11)、与螺杆段(11)的两端分别一体式连接的侧面段(12)及与侧面段(12)一体式连接的开口段(14)，其中螺杆段(11)上开设有一螺纹通孔，开口段(14)上开设有一开口通孔；推动组件(3)包括第一U型底座(33)及固接于第一U型底座(33)的螺纹杆(31)，螺纹杆(31)贯穿第一U型底座(33)，第一U型底座(33)靠近螺纹杆(31)的一端上固接有销钉(32)。融合器结构设计操作方便，最大程度减少对人体的伤害，融合器撑开，达到患者所需椎间隙高度，撑开后融合器植骨仓空间增大，可满足继续植骨的需求。

Description

一种后植骨高度可调的融合器 技术领域
本发明涉及融合器的技术领域，特别涉及一种高度可调的后植骨融合器。
背景技术
脊柱退行性疾病是一种常见病症，其中腰椎退行性滑脱、节段性不稳、椎间盘源性疾病、外伤性腰椎滑脱等的治疗一般都需要进行腰椎固定融合术。椎间融合器的应用能维持椎间隙的高度，恢复前中柱的支撑，增加椎间孔容量，解除神经根受压，防止椎间隙塌陷及假关节的形成。而随着微创外科的发展，对椎间融合器的设计提出更高的要求。另一方面，随着内窥镜技术在外科学中的应用，脊柱微创外科逐步发展，在内窥镜的辅助下，常规脊柱融合手术逐步微创化。然而目前融合器多为型号尺寸固定的常规规格，难以实现尺寸连续调节，内窥镜通道下难以置入大型号融合器；或者具有调节功能的融合器仍采用在融合器中先植骨，在植入椎间隙并将高度调节高后植骨仓变大，所植的骨量转为不足而且无法补充，使融合器内因植骨不充分而影响融合效果。
发明内容
本发明的目的是提供一种后植骨高度可调融合器。该融合器是先置入到椎间隙，根据椎间隙高度需要调节好高度，再将融合器中植骨(即后植骨)。本发明从根本上解决了现有高度可调融合器不能充分植骨的不足。该融合器结构设计新颖，操作方便，植骨仓空间大，通过融合器尾部大开口，结合配套的专用植骨工具，使其保证在融合器植入撑开后，方便地将自体骨、异体 骨填充进融合器植骨仓。
本发明的后植骨为了实现根据本发明的上述目的和其他优点，提供了一种高度可调的融合器，包括：
主体、与所述主体相嵌合的叶片组件及与所述叶片组件嵌合设置的推动组件，所述主体的一端面上过盈配合有端盖；
所述主体包括螺杆段、与所述螺杆段的两端分别一体式连接的侧面段及与所述侧面段一体式连接的开口段，其中所述螺杆段上开设有一螺纹通孔，所述开口段上开设有一开口通孔，所述开口通孔的中轴线与螺纹通孔的中轴线位于同一高度位置；
所述推动组件包括第一U型底座及固接于所述第一U型底座的螺纹杆，所述螺纹杆的螺纹段延伸出第一U型底座的端面，所述螺纹杆的方形圆柱段贯穿第一U型底座且延伸出第一U型底座远离螺纹段的一端面，所述第一U型底座靠近螺纹杆的一端上固接有销钉，所述销钉位置垂直于螺纹杆的轴线方向；
所述螺纹杆的螺纹段与螺纹通孔螺纹匹配，且第一U型底座与叶片组件相嵌合设置。
优选的，所述侧面段上开设有限位滑动槽，且所述限位滑动槽的中心线轴的位置与主体的螺纹通孔中心线位于同一高度位置。
优选的，所述第一U型底座包括第一端面板、与所述第一端面板的两端一体式连接的第一侧面板、倾斜固定于所述第一侧面板上的滑块及固定于所述第一侧面板上的限位块，所述限位块与第一侧面板相互垂直设置，且所述限位块由第一侧面板的内壁向滑块的方向延伸且延伸出第一侧面板。
所述限位块与主体上的限位滑动槽配合。
优选的，所述开口通孔一相对的内壁上开设有嵌合槽，且开口通孔位于嵌合槽的内壁上均开设有第一螺纹。
优选的，所述开口段上过盈配合有端盖，所述端盖包括中间开设有通孔 的弧形板及与所述弧形板一体连接的弹性片，所述弧形板一相对的侧边上一体式连接有弹性片，所述弹性片与嵌合槽之间过盈配合，且所述端盖上设置有连接段，所述连接段用于与使用工件相配合。
优选的，所述第一侧面板上固接有四个滑块，且第一侧面板上端部设置有两个第一滑块，两个所述第一滑块沿同一个倾斜方向倾斜固定于第一侧面板上，且所述第一滑块的一端延伸出第一侧面板。
优选的，所述第一侧面板的下端部设置有两个第二滑块，两个所述第二滑块沿同一个倾斜方向倾斜固定于第一侧面板上，且所述第二滑块的一端延伸出第一侧面板，所述第二滑块与第一滑块关于第一侧面板的水平中心线对称设置于两个第一侧面板上，第二滑块与第一滑块与其主轴线呈一定角度。
优选的，所述叶片组件包括第一叶片及与所述主体对称且相嵌合设置的第二叶片，所述第一叶片包括中间为孔洞的第一叶片齿及与所述第一叶片齿固接的第一连接围板，所述第一连接围板靠近开口段一端开设一第一匹配孔。
优选的，所述第二叶片包括中间为孔洞的第二叶片齿及与所述第二叶片齿固接的第二连接围板，所述第二连接围板靠近开口段一端开设一第二匹配孔。
优选的，所述第一连接围板一相对的侧面上对称设置有第一滑块槽，所述第一滑块槽与第一滑块相匹配，所述第二连接围板一相对的侧面上对称设置有第二滑块槽，所述第二滑块槽与第二滑块相匹配，第一滑块槽及第二滑块槽与主体的水平中心线呈倾斜角。
两个所述侧面段上分别开设有固定孔，所述固定孔内固定有限位块，且所述侧面段靠近端盖一端上开设有卡扣槽，所述卡扣槽内开设有卡扣孔，第一U型底座与限位块相对应的端面上开设有位移槽，所述限位块位于位移槽内进行移动，两个所述第一U型底座之间固接有稳定杆。
优选的，所述端盖包括直段、固定于所述直段两端的卡扣段及与所述卡扣段一体式连接的卡扣，所述卡扣与卡扣孔相匹配。
本发明与现有技术相比，其有益效果是：
(1)通过高度调节螺纹杆置于主体的开口段相对的一端且进行高度的调节，最大限度的释放了融合器主体内的植骨仓的空间，增大植骨量，更加有利于骨融合。
(2)该融合器的结构设计操作方便简洁，主体内的植骨仓空间大，融合器尾部大开口，使其保证在融合器植入后，更好的将自体骨、异体骨填充进融合器主体内的植骨仓，由于植骨仓空间的释放和尾部大开口，可以更好的配合内窥镜进行操作，使手术更加的精准和快捷。
(3)该封盖设计，在主体内的植骨仓填充完骨头后，使用盖板将主体内的植骨仓进行封堵，确保植入的骨头限制在融合器内。
附图说明
图1为根据本发明的高度可调的融合器的三维结构示意图；
图2为根据本发明的高度可调的融合器的推动组件的三维结构示意图；
图3为根据本发明的高度可调的融合器的叶片组件的三维爆炸结构示意图；
图4为根据本发明的高度可调的融合器的叶片组件的融合器撑开工作状态的三维爆炸结构示意图；
图5为根据本发明的高度可调的融合器的叶片组件的融合器的三维爆炸结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
参照图1-5，一种高度可调的融合器，包括：主体1、与所述主体1相嵌合的叶片组件2及与所述叶片组件2嵌合设置的推动组件3，所述主体1的一端面上过盈配合有端盖4，当叶片组件2处于闭合状态时，通过融合器持取器将融合器放入椎体的空隙内；所述主体1包括螺杆段11、与所述螺杆段11的两端分别一体式连接的侧面段12及与所述侧面段12一体式连接的开口段14，其中所述螺杆段11上开设有一螺纹通孔，所述开口段14上开设有一开口通孔，所述开口通孔的中轴线与螺纹通孔的中轴线位于同一高度位置；所述推动组件3包括第一U型底座33及固接于所述第一U型底座33的螺纹杆31，所述螺纹杆31的螺纹段延伸出第一U型底座33的端面，所述螺纹杆31的方形圆柱段贯穿第一U型底座33且延伸出第一U型底座33远离螺纹段的一端面，所述第一U型底座33靠近螺纹杆31的一端上固接有销钉32，所述销钉32位置垂直于螺纹杆31的轴线方向；所述螺纹杆31的螺纹段与螺纹通孔螺纹匹配，且第一U型底座33与叶片组件2相嵌合设置，通过使用配合的工具与螺纹杆31匹配，通过带动螺纹杆31转动使得螺纹杆31在螺纹通孔中发生位移，进而带动第一U型底座33沿直线方向移动，使得叶片组件2沿竖直方向相向移动，融合器撑开，达到患者需要的高度，撤出配合撑开的工具，主体1与叶片组件2形成更大的植骨仓，再使用工具将自体骨或异体骨通过开口段14植入植骨仓中，以填充融合器的空腔，当植骨完成后，将端盖4与开口段14过盈配合，封堵融合器的主体1。
进一步的，所述侧面段12上开设有限位滑动槽13，且所述限位滑动槽13的中心线轴的位置与主体1的螺纹通孔中心线位于同一高度位置，融合器在实现撑开功能时，第一U型底座33沿轴向运动，实现限位。所述开口通孔一相对的内壁上开设有嵌合槽16，且开口通孔位于嵌合槽16的内壁上均开设有第一螺纹15，当后期需要将该融合器取出或者调整位置时，通过使用工具与第一螺纹15螺纹配合，进而通过使用工具进行调整该融合器的位置，使得医生能够精准快捷的对融合器定位操作。
进一步的，所述第一U型底座33包括第一端面板、与所述第一端面板的两端一体式连接的第一侧面板、倾斜固定于所述第一侧面板上的滑块35及固定于所述第一侧面板上的限位块34，所述限位块34与第一侧面板相互垂直设置，且所述限位块34由第一侧面板的内壁向滑块35的方向延伸且延伸出第一侧面板，所述第一侧面板上固接有四个滑块，且第一侧面板上端部设置有两个第一滑块35，两个所述第一滑块35沿同一个倾斜方向倾斜固定于第一侧面板上，且所述第一滑块35的一端延伸出第一侧面板，所述第一侧面板的下端部设置有两个第二滑块36，两个所述第二滑块36沿同一个倾斜方向倾斜固定于第一侧面板上，且所述第二滑块36的一端延伸出第一侧面板，所述第二滑块36与第一滑块35关于第一侧面板的水平中心线对称设置于两个第一侧面板上，第二滑块36与第一滑块35与其主轴线呈一定角度。
进一步的，所述叶片组件2包括第一叶片21及与所述主体1对称且相嵌合设置的第二叶片22，所述第一叶片21包括中间为孔洞的第一叶片齿211及与所述第一叶片齿211固接的第一连接围板213，所述第一连接围板213靠近开口段14一端开设一第一匹配孔214，所述叶片齿结构不限于尖刺、金字塔形的阵列形式，所述第二叶片22包括中间为孔洞的第二叶片齿221及与所述第二叶片齿221固接的第二连接围板222，所述第二连接围板222靠近开口段14一端开设一第二匹配孔224，所述第一连接围板213一相对的侧面上对称设置有第一滑块槽212，所述第一滑块槽212与第一滑块35相匹配，所述第二连接围板222一相对的侧面上对称设置有第二滑块槽223，所述第二滑块槽223与第二滑块36相匹配，第一滑块槽212及第二滑块槽223与主体1的水平中心线呈倾斜角，当通过使用工具与螺纹杆31卡接后，带动叶片组件2沿直线方向运动，此时第一滑块35与第二滑块36分别沿着第一滑块槽212与第二滑块槽223进行滑动，而因为第一滑块槽212与第二滑块槽223为倾斜状态，当第一滑块35与第二滑块36分别在第一滑块槽212与第二滑块槽223中移动时，此时通过第一滑块35及第二滑块36与第一滑块槽212 及第二滑块槽223之间相互作用力的作用，使得第一U型底座33受到沿竖直方推力的作用，进而带动第一叶片21与第二叶片22分别向远离主体1的方向移动。
进一步的，所述开口段14上过盈配合有端盖4，所述端盖4包括中间开设有通孔的弧形板及与所述弧形板一体连接的弹性片，所述弧形板一相对的侧边上一体式连接有弹性片，所述弹性片与嵌合槽16之间过盈配合，且所述端盖4上设置有连接段，所述连接段用于与使用工件相配合。
参照图5，两个所述侧面段12上分别开设有固定孔121，所述固定孔121内固定有限位块34，且所述侧面段12靠近端盖4一端上开设有卡扣槽123，所述卡扣槽123内开设有卡扣孔124，第一U型底座33与限位块34相对应的端面上开设有位移槽331，所述限位块34位于位移槽331内进行移动，两个所述第一U型底座33之间固接有稳定杆5，通过转动螺纹杆31使得限位块34位于位移槽331内进行水平方向的移动，使得整体结构移动更加稳定，而且第一U型底座33之间设置有稳定杆5，使得第一U型底座33的结构强度增加。
参照图5，所述端盖4包括直段41、固定于所述直段41两端的卡扣段42及与所述卡扣段42一体式连接的卡扣43，所述卡扣43与卡扣孔124相匹配，所述端盖4通过卡扣43与卡扣孔124相卡接，使得端盖4更牢固的连接于侧面段12上。
这里说明的设备数量和处理规模是用来简化本发明的说明的，对本发明的应用、修改和变化对本领域的技术人员来说是显而易见的。
尽管本发明的实施方案已公开如上，但其并不仅限于说明书和实施方式中所列运用，它完全可以被适用于各种适合本发明的领域，对于熟悉本领域的人员而言，可容易地实现另外的修改，因此在不背离权利要求及等同范围所限定的一般概念下，本发明并不限于特定的细节和这里示出与描述的图例。

Claims (12)

  1. 一种后植骨高度可调的融合器，其特征在于，包括：
    主体(1)、与所述主体(1)相嵌合的叶片组件(2)及与所述叶片组件(2)嵌合设置的推动组件(3)，所述主体(1)的一端面上过盈配合有端盖(4)；
    所述主体(1)包括螺杆段(11)、与所述螺杆段(11)的两端分别一体式连接的侧面段(12)及与所述侧面段(12)一体式连接的开口段(14)，其中所述螺杆段(11)上开设有一螺纹通孔，所述开口段(14)上开设有一开口通孔，所述开口通孔的中轴线与螺纹通孔的中轴线位于同一高度位置；
    所述推动组件(3)包括第一U型底座(33)及固接于所述第一U型底座(33)的螺纹杆(31)，所述螺纹杆(31)的螺纹段延伸出第一U型底座(33)的端面，所述螺纹杆(31)的方形圆柱段贯穿第一U型底座(33)且延伸出第一U型底座(33)远离螺纹段的一端面，所述第一U型底座(33)靠近螺纹杆(31)的一端上固接有销钉(32)，所述销钉(32)位置垂直于螺纹杆(31)的轴线方向；
    所述螺纹杆(31)的螺纹段与螺纹通孔螺纹匹配，且第一U型底座(33)与叶片组件(2)相嵌合设置。
  2. 如权利要求1所述的一种后植骨高度可调的融合器，其特征在于，所述侧面段(12)上开设有限位滑动槽(13)，且所述限位滑动槽(13)的中心线轴的位置与主体(1)的螺纹通孔中心线位于同一高度位置。
  3. 如权利要求1所述的一种后植骨高度可调的融合器，其特征在于，所述第一U型底座(33)包括第一端面板、与所述第一端面板的两端一体式连接的第一侧面板、倾斜固定于所述第一侧面板上的滑块(35)及固定于所述第一侧面板上的限位块(34)，所述限位块(34)与第一侧面板相互垂直设置，且所述限位块(34)由第一侧面板的内壁向滑块(35)的方向延伸且延伸出第一侧面板。
    所述限位块(34)与主体(1)上的限位滑动槽(13)配合。
  4. 如权利要求1所述的一种后植骨高度可调的融合器，其特征在于，所述开口通孔一相对的内壁上开设有嵌合槽(16)，且开口通孔位于嵌合槽(16)的内壁上均开设有第一螺纹(15)。
  5. 如权利要求1所述的一种后植骨高度可调的融合器，其特征在于，所述开口段(14)上过盈配合有端盖(4)，所述端盖(4)包括中间开设有通孔的弧形板及与所述弧形板一体连接的弹性片，所述弧形板一相对的侧边上一体式连接有弹性片，所述弹性片与嵌合槽(16)之间过盈配合，且所述端盖(4)上设置有连接段，所述连接段用于与使用工件相配合。
  6. 如权利要求3所述的一种后植骨高度可调的融合器，其特征在于，所述第一侧面板上固接有四个滑块，且第一侧面板上端部设置有两个第一滑块(35)，两个所述第一滑块(35)沿同一个倾斜方向倾斜固定于第一侧面板上，且所述第一滑块(35)的一端延伸出第一侧面板。
  7. 如权利要求3所述的一种后植骨高度可调的融合器，其特征在于，所述第一侧面板的下端部设置有两个第二滑块(36)，两个所述第二滑块(36)沿同一个倾斜方向倾斜固定于第一侧面板上，且所述第二滑块(36)的一端延伸出第一侧面板，所述第二滑块(36)与第一滑块(35)关于第一侧面板的水平中心线对称设置于两个第一侧面板上，第二滑块(36)与第一滑块(35)与其主轴线呈一定角度。
  8. 如权利要求1所述的一种后植骨高度可调的融合器，其特征在于，所述叶片组件(2)包括第一叶片(21)及与所述主体(1)对称且相嵌合设置的第二叶片(22)，所述第一叶片(21)包括中间为孔洞的第一叶片齿(211)及与所述第一叶片齿(211)固接的第一连接围板(213)，所述第一连接围板(213)靠近开口段(14)一端开设一第一匹配孔(214)。
  9. 如权利要求8所述的一种后植骨高度可调的融合器，其特征在于，所述第二叶片(22)包括中间为孔洞的第二叶片齿(221)及与所述第二叶片齿 (221)固接的第二连接围板(222)，所述第二连接围板(222)靠近开口段(14)一端开设一第二匹配孔(224)。
  10. 如权利要求8或9所述的一种后植骨高度可调的融合器，其特征在于，所述第一连接围板(213)一相对的侧面上对称设置有第一滑块槽(212)，所述第一滑块槽(212)与第一滑块(35)相匹配，所述第二连接围板(222)一相对的侧面上对称设置有第二滑块槽(223)，所述第二滑块槽(223)与第二滑块(36)相匹配，第一滑块槽(212)及第二滑块槽(223)与主体(1)的水平中心线呈倾斜角。
  11. 如权利要求1所述的一种后植骨高度可调的融合器，其特征在于，两个所述侧面段(12)上分别开设有固定孔(121)，所述固定孔(121)内固定有限位块(34)，且所述侧面段(12)靠近端盖(4)一端上开设有卡扣槽(123)，所述卡扣槽(123)内开设有卡扣孔(124)，第一U型底座(33)与限位块(34)相对应的端面上开设有位移槽(331)，所述限位块(34)位于位移槽(331)内进行移动，两个所述第一U型底座(33)之间固接有稳定杆(5)。
  12. 如权利要求1所述的一种后植骨高度可调的融合器，其特征在于，所述端盖(4)包括直段(41)、固定于所述直段(41)两端的卡扣段(42)及与所述卡扣段(42)一体式连接的卡扣(43)，所述卡扣(43)与卡扣孔(124)相匹配。
PCT/CN2022/070665 2021-08-10 2022-01-07 一种后植骨高度可调的融合器 WO2023015839A1 (zh)

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