CN103948424A - 一种扩张型椎体融合器 - Google Patents

一种扩张型椎体融合器 Download PDF

Info

Publication number
CN103948424A
CN103948424A CN201410091642.7A CN201410091642A CN103948424A CN 103948424 A CN103948424 A CN 103948424A CN 201410091642 A CN201410091642 A CN 201410091642A CN 103948424 A CN103948424 A CN 103948424A
Authority
CN
China
Prior art keywords
pawl
push rod
fusant
frame
hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201410091642.7A
Other languages
English (en)
Other versions
CN103948424B (zh
Inventor
申维波
郝在晨
路雪城
赵天明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANDONG GUANLONG MEDICAL UTENSILS CO Ltd
Original Assignee
SHANDONG GUANLONG MEDICAL UTENSILS CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANDONG GUANLONG MEDICAL UTENSILS CO Ltd filed Critical SHANDONG GUANLONG MEDICAL UTENSILS CO Ltd
Priority to CN201410091642.7A priority Critical patent/CN103948424B/zh
Publication of CN103948424A publication Critical patent/CN103948424A/zh
Priority to KR1020167025436A priority patent/KR101766391B1/ko
Priority to PCT/CN2015/000046 priority patent/WO2015135374A1/zh
Priority to JP2016574320A priority patent/JP6333418B2/ja
Application granted granted Critical
Publication of CN103948424B publication Critical patent/CN103948424B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7061—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant for stabilising vertebrae or discs by improving the condition of their tissues, e.g. using implanted medication or fluid exchange
    • 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
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7094—Solid vertebral fillers; devices for inserting such fillers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7097—Stabilisers comprising fluid filler in an implant, e.g. balloon; devices for inserting or filling such implants
    • 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
    • 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
    • A61F2/442—Intervertebral or spinal discs, e.g. resilient
    • 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
    • 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
    • A61F2/30721—Accessories
    • A61F2/30744—End caps, e.g. for closing an endoprosthetic cavity
    • 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
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • 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
    • 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
    • A61F2002/30329—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
    • A61F2002/305—Snap connection
    • 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
    • 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
    • A61F2002/30593—Special structural features of bone or joint prostheses not otherwise provided for hollow
    • 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30904—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves serrated profile, i.e. saw-toothed
    • 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
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00011—Metals or alloys
    • A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys

Abstract

本发明提供了一种扩张型椎体融合器技术方案，该方案包括有融合体和在融合体内与融合体轴向螺纹连接的推杆，本方案的融合体的垂直投影为带有倒角的矩形，该融合体的上部为基部，下部为头部，在基部和头部之间为倒齿部的一体结构。倒齿部是由左右两倒齿部侧壁组成，在倒齿部上连接有Π形倒齿框，在两倒齿部侧壁的顶部有倒齿框滑槽，与头部连接处有侧壁梯形槽，头部底面为弧形，在倒齿框顶面有与卡头孔，在倒齿框的两侧壁外侧有倒齿和对应的倒齿框孔，倒齿框两侧壁的底端有与倒齿部侧壁上的侧壁梯形槽配合的倒齿框头。推杆下部有推杆卡头，倒齿框的卡头孔就装在该推杆卡头上，在推杆卡头上有卡头通槽，推杆在沿推杆的轴线有推杆轴孔与卡头通槽连接。

Description

一种扩张型椎体融合器
技术领域
本发明涉及的是一种医疗手术器械，尤其是一种用于胸腰椎后路手术的扩张型椎体融合器。
背景技术
椎体融合器在脊柱外科手术中得到广泛的应用，主要用于椎间盘切除术手的椎间隙重建，在现有技术中，与本申请最为接近的技术方案是由国家知识产权局专利局授权的申请号为201120350285.3，名称:扩张式椎体融合器的实用新型专利，在该专利的技术方案中缺少植骨窗口，在手术中难以将骨颗粒注入进行植骨，故手术后融合器与椎体融合困难，容易成为体内的异物，有一定的手术风险，这是现有技术所存在的不足之处。
发明内容
本发明所要解决的技术问题，就是针对现有技术所存在的不足，而提供一种扩张型椎体融合器技术方案，该方案采用由基部、倒齿部和头部组成的融合体，在该融合体的基部沿融合体轴线有推杆通过螺纹与融合体连接，在融合体的倒齿部装有Π形倒齿框，该倒齿框的倒齿框顶面与推杆的推杆卡头连接。这一结构，在手术置入融合器于锥间内，当推杆旋进时将推动倒齿框向下移动，倒齿框的两侧壁将向融合体的头部两侧张开，可调节锥间的高度，并由推杆轴孔、卡头通槽和倒齿框孔形成植骨通道将骨颗粒植入，用以保证手术后融合器能与椎体融合在一起。
本方案是通过如下技术措施来实现的：本方案的扩张型椎体融合器，包括有融合体和在融合体内与融合体轴向螺纹连接的推杆，本方案的特点是所述的融合体的垂直投影为带有倒角的矩形，该融合体的上部为基部，下部为头部，在基部和头部之间为倒齿部的一体结构；在所述的基部内沿轴线有螺纹孔，所述的推杆就在该螺纹孔内并由相配合的螺纹连接，所述的倒齿部是由与基部连接的左右两倒齿部侧壁组成，两倒齿部侧壁之间中空，在所述的倒齿部上连接有Π形倒齿框，在所述两倒齿部侧壁的顶部与基部连接处的两侧有倒齿框滑槽，两倒齿部侧壁底部与融合体的头部连接处的两侧有侧壁梯形槽，所述融合体的头部底面为弧形，在所述倒齿框顶面有与融合体同轴的卡头孔，在倒齿框的两侧壁外侧有倒齿，在倒齿框的两侧壁有对应的倒齿框孔，倒齿框两侧壁的底端有与倒齿部侧壁上的侧壁梯形槽配合的倒齿框头；所述的推杆下部有推杆卡头，所述倒齿框的卡头孔就套装在该推杆卡头上，在所述推杆卡头的轴线处有卡头通槽，在所述推杆顶端沿推杆的轴线有推杆轴孔与卡头通槽连接。本方案具体的特点还有，在所述融合体的基部顶面还有基部通槽。在所述推杆的顶面沿轴线还有内六方孔，该内六方孔的轴线与推杆轴孔的轴线重合。所述倒齿框上的倒齿框孔为矩形。所述的融合体采用的材料是医用钛合金或医用非金属材料。所述的推杆采用的材料是医用钛合金或医用非金属材料。所述的倒齿框采用的材料是医用钛合金或医用非金属材料。
本方案的有益效果可根据对上述方案的叙述得知，由于在该方案中，融合体的垂直投影为带有倒角的矩形，该融合体的上部为基部，下部为头部，在基部和头部之间为倒齿部的一体结构。在所述的基部内沿轴线有螺纹孔，所述的推杆就在该螺纹孔内并由相配合的螺纹连接，所述的倒齿部是由与基部连接的左右两倒齿部侧壁组成，两倒齿部侧壁之间中空，在所述的倒齿部上连接有Π形倒齿框，在所述两倒齿部侧壁的顶部与基部连接处的两侧有倒齿框滑槽，两倒齿部侧壁底部与融合体的头部连接处的两侧有侧壁梯形槽，所述融合体的头部底面为弧形。在所述倒齿框顶面有与融合体同轴的卡头孔，在倒齿框的两侧壁外侧有倒齿，在倒齿框的两侧壁有对应的倒齿框孔，倒齿框两侧壁的底端有与倒齿部侧壁上的侧壁梯形槽配合的倒齿框头。所述的推杆下部有推杆卡头，所述倒齿框的卡头孔就套装在该推杆卡头上，在所述推杆卡头的轴线处有卡头通槽，在所述推杆顶端沿推杆的轴线有推杆轴孔与卡头通槽连接。这一结构，由于融合体是矩形头部是弧形且在倒齿框的两个倒齿框侧壁上有倒齿，这就容易将融合体插入患者椎体的锥间中，倒齿框侧壁上的倒齿可以保证融合体不易退出。通过内六方孔转动推杆，推杆推动倒齿框向下移动，使倒齿框的两个倒齿框侧壁张开，可控制患者椎体锥间的高度，达到锥间高度和椎体生理弧度的要求，另外，还可以通过推杆的推杆轴孔、卡头通槽和倒齿框孔构成植骨通道和窗口向锥间输入骨颗粒，将融合体与椎体固定融合，这就使患者的椎体能恢复到正常功能。由此可见，本发明与现有技术相比，具有突出的实质性特点和显著的进步，其实施的有益效果也是显而易见的。
附图说明
图1为本发明具体实施方式部分剖视的结构示意图。
图2为图1的左视部分剖视结构示意图。
图3为图2的俯视结构示意图。
图4为图2的A-A剖视结构示意图。
图中，1为头部，2为倒齿框，3为倒齿部，4为基部，5为融合体，6为基部通槽，7为推杆，8为推杆卡头，9为倒齿，10为倒齿框孔，11为倒倒齿框头，12为卡头通槽，13为推杆轴孔，14为内六方孔，15为倒齿框顶面，16为倒齿框滑槽，17为倒齿部侧壁，18为侧壁梯形槽，19为卡头孔。 
具体实施方式
为能清楚说明本方案的技术特点，下面通过一个具体实施方式，并结合其附图，对本方案进行阐述。
通过附图可以看出，本方案的扩张型椎体融合器有融合体5和在融合体5内与融合体5轴向螺纹连接的推杆7，本方案所述的融合体5的垂直投影为带有倒角的矩形，该融合体5的上部为基部4，下部为头部1，在基部4和头部1之间为倒齿部3的一体结构。在所述的基部4内沿轴线有螺纹孔，所述的推杆7就在该螺纹孔内并由相配合的螺纹连接，在所述融合体5的基部4顶面还有基部通槽6，该基部通槽6的作用是在置入融合器的手术中，用于夹持融合器的手术器械与融合器的连接用槽。所述的倒齿部3是由与基部4连接的左右两倒齿部侧壁17组成，两倒齿部侧壁17之间中空，在所述的倒齿部3上连接有Π形倒齿框2，在所述两倒齿部侧壁17的顶部与基部4连接处的两侧有倒齿框滑槽16，两倒齿部侧壁17底部与融合体5的头部1连接处的两侧有侧壁梯形槽18，所述融合体5的头部1底面为弧形。在所述倒齿框顶面15有与融合体5同轴的卡头孔19，在倒齿框2的两侧壁外侧有倒齿9，在倒齿框2的两侧壁有对应的倒齿框孔10，该倒齿框孔10为矩形，倒齿框2两侧壁的底端有与倒齿部侧壁17上的侧壁梯形槽18配合的倒齿框头11。所述的推杆7下部有推杆卡头8，所述倒齿框2的卡头孔19就套装在该推杆卡头8上，在所述推杆卡头8的轴线处有卡头通槽12，该卡头通槽12还起到增加推杆卡头8弹性的作用，在所述推杆7顶端沿推杆7的轴线有推杆轴孔13与卡头通槽12连接。在所述推杆7的顶面沿轴线还有内六方孔14，该内六方孔14的轴线与推杆轴孔13的轴线重合，内六方孔14是为了在手术中用六方扳手转动推杆7推动倒齿框2向下移动使倒齿框2的两侧壁张开。所述的融合体5、推杆7和倒齿框2采用的材料可以是医用钛合金或医用非金属材料中的一种，可以采用相同的材料，也可以采用不同的材料，本具体实施方式中的融合体5和推杆7采用的是相同的材料，均是采用医用钛合金材料，而倒齿框2则是采用的医用非金属材料。
本发明并不仅限于上述具体实施方式，本领域普通技术人员在本发明的实质范围内做出的变化、改型、添加或替换，也应属于本发明的保护范围。 

Claims (7)

1.一种扩张型椎体融合器，包括有融合体和在融合体内与融合体轴向螺纹连接的推杆，其特征是：所述的融合体的垂直投影为带有倒角的矩形，该融合体的上部为基部，下部为头部，在基部和头部之间为倒齿部的一体结构；在所述的基部内沿轴线有螺纹孔，所述的推杆就在该螺纹孔内并由相配合的螺纹连接，所述的倒齿部是由与基部连接的左右两倒齿部侧壁组成，两倒齿部侧壁之间中空，在所述的倒齿部上连接有Π形倒齿框，在所述两倒齿部侧壁的顶部与基部连接处的两侧有倒齿框滑槽，两倒齿部侧壁底部与融合体的头部连接处的两侧有侧壁梯形槽，所述融合体的头部底面为弧形，在所述倒齿框顶面有与融合体同轴的卡头孔，在倒齿框的两侧壁外侧有倒齿，在倒齿框的两侧壁有对应的倒齿框孔，倒齿框两侧壁的底端有与倒齿部侧壁上的侧壁梯形槽配合的倒齿框头；所述的推杆下部有推杆卡头，所述倒齿框的卡头孔就套装在该推杆卡头上，在所述推杆卡头的轴线处有卡头通槽，在所述推杆顶端沿推杆的轴线有推杆轴孔与卡头通槽连接。
2.根据权利要求1所述的椎体融合器，其特征是：在所述融合体的基部顶面还有基部通槽。
3.根据权利要求1所述的椎体融合器，其特征是：在所述推杆的顶面沿轴线还有内六方孔，该内六方孔的轴线与推杆轴孔的轴线重合。
4.根据权利要求1所述的椎体融合器，其特征是：所述倒齿框上的倒齿框孔为矩形。
5.根据权利要求1或2所述的椎体融合器，其特征是：所述的融合体采用的材料是医用钛合金或医用非金属材料。
6.根据权利要求1或3所述的椎体融合器，其特征是：所述的推杆采用的材料是医用钛合金或医用非金属材料。
7.根据权利要求1或4所述的椎体融合器，其特征是：所述的倒齿框采用的材料是医用钛合金或医用非金属材料。
CN201410091642.7A 2014-03-13 2014-03-13 一种扩张型椎体融合器 Active CN103948424B (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201410091642.7A CN103948424B (zh) 2014-03-13 2014-03-13 一种扩张型椎体融合器
KR1020167025436A KR101766391B1 (ko) 2014-03-13 2015-01-27 확장형 추체간 융합장치
PCT/CN2015/000046 WO2015135374A1 (zh) 2014-03-13 2015-01-27 一种扩张型椎体融合器
JP2016574320A JP6333418B2 (ja) 2014-03-13 2015-01-27 拡張型椎体間融合装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410091642.7A CN103948424B (zh) 2014-03-13 2014-03-13 一种扩张型椎体融合器

Publications (2)

Publication Number Publication Date
CN103948424A true CN103948424A (zh) 2014-07-30
CN103948424B CN103948424B (zh) 2015-12-16

Family

ID=51325881

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410091642.7A Active CN103948424B (zh) 2014-03-13 2014-03-13 一种扩张型椎体融合器

Country Status (4)

Country Link
JP (1) JP6333418B2 (zh)
KR (1) KR101766391B1 (zh)
CN (1) CN103948424B (zh)
WO (1) WO2015135374A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015135374A1 (zh) * 2014-03-13 2015-09-17 山东冠龙医疗用品有限公司 一种扩张型椎体融合器
CN108236494A (zh) * 2016-12-26 2018-07-03 贺新宁 用于置入脊柱侧弯钉棒矫正支架的推顶装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002045628A1 (en) * 2000-12-04 2002-06-13 Jackson Roger P Posterior expandable fusion cage
CN1383790A (zh) * 2001-04-28 2002-12-11 李春泽 脊椎融合移植物
JP2008054710A (ja) * 2006-08-29 2008-03-13 Taeyeon Medical Co Ltd 脊椎融合手術用移植具
US20120226357A1 (en) * 2010-01-11 2012-09-06 Innova Spinal Technologies, Llc Expandable intervertebral implant and associated surgical method
CN202458786U (zh) * 2012-03-14 2012-10-03 吉林医药学院 可膨胀箱形椎间融合器及其置入器
CN103356310A (zh) * 2012-03-28 2013-10-23 北京爱康宜诚医疗器材股份有限公司 可调型椎间融合器
CN203749547U (zh) * 2014-03-13 2014-08-06 山东冠龙医疗用品有限公司 一种扩张型椎体融合器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8795366B2 (en) * 2010-01-11 2014-08-05 Innova Spinal Technologies, Llc Expandable intervertebral implant and associated surgical method
CN103948424B (zh) * 2014-03-13 2015-12-16 山东冠龙医疗用品有限公司 一种扩张型椎体融合器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002045628A1 (en) * 2000-12-04 2002-06-13 Jackson Roger P Posterior expandable fusion cage
CN1383790A (zh) * 2001-04-28 2002-12-11 李春泽 脊椎融合移植物
JP2008054710A (ja) * 2006-08-29 2008-03-13 Taeyeon Medical Co Ltd 脊椎融合手術用移植具
US20120226357A1 (en) * 2010-01-11 2012-09-06 Innova Spinal Technologies, Llc Expandable intervertebral implant and associated surgical method
CN202458786U (zh) * 2012-03-14 2012-10-03 吉林医药学院 可膨胀箱形椎间融合器及其置入器
CN103356310A (zh) * 2012-03-28 2013-10-23 北京爱康宜诚医疗器材股份有限公司 可调型椎间融合器
CN203749547U (zh) * 2014-03-13 2014-08-06 山东冠龙医疗用品有限公司 一种扩张型椎体融合器

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015135374A1 (zh) * 2014-03-13 2015-09-17 山东冠龙医疗用品有限公司 一种扩张型椎体融合器
CN108236494A (zh) * 2016-12-26 2018-07-03 贺新宁 用于置入脊柱侧弯钉棒矫正支架的推顶装置
CN108236494B (zh) * 2016-12-26 2022-07-19 贺新宁 用于置入脊柱侧弯钉棒矫正支架的推顶装置

Also Published As

Publication number Publication date
KR101766391B1 (ko) 2017-08-08
JP6333418B2 (ja) 2018-05-30
KR20160124158A (ko) 2016-10-26
CN103948424B (zh) 2015-12-16
WO2015135374A1 (zh) 2015-09-17
JP2017508580A (ja) 2017-03-30

Similar Documents

Publication Publication Date Title
US10363144B2 (en) Expandable spinal implant
US9615940B2 (en) Interbody device and plate for spinal stabilization and instruments for positioning same
CN204158475U (zh) 一种融合器及其夹持装置
CN104955409B (zh) 可扩展的椎间保持器组件和方法
JP4909995B2 (ja) 椎骨の整骨と体間固定のためのケージ
US9579213B2 (en) Intervertebral expandable cage system and its instrument
KR100953930B1 (ko) 확장 가능한 척추 임플란트용 케이지 및 케이지 홀더
CN204033456U (zh) 一种椎间融合器及其安装工具
US20220287849A1 (en) Vertebral cage
CN104116552A (zh) 一种椎间融合器及其安装工具
CN202386760U (zh) 椎间融合器
CN102860888A (zh) 一体化腰椎椎间钛板融合器
CN103948424A (zh) 一种扩张型椎体融合器
CN203749547U (zh) 一种扩张型椎体融合器
CN105361981B (zh) 一种颈椎融合器
CN205215454U (zh) 一种融合器安装系统
CN203749546U (zh) 一种椎体融合器
CN205924251U (zh) 一种前入路椎间融合器
CN103908329B (zh) 一种椎体融合器
CN206910385U (zh) 一种颈椎后路椎板成形系统
CN105520778A (zh) 一种膨胀骨钉
CN108606830A (zh) 一种颈椎后路椎板成形系统
CN202960832U (zh) 椎间隙融合器及用于推进其的推进器
CN204500929U (zh) 一种新型脊柱双螺纹关节突螺钉
RU2592606C1 (ru) Имплантат позвонка

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CB03 Change of inventor or designer information

Inventor after: Shen Weibo

Inventor after: Lu Xuecheng

Inventor before: Shen Weibo

Inventor before: Hao Zaichen

Inventor before: Lu Xuecheng

Inventor before: Zhao Tianming

COR Change of bibliographic data
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Shao Weixing

Inventor before: Shen Weibo

Inventor before: Lu Xuecheng