CN201861800U - 可调式膨胀融合器 - Google Patents

可调式膨胀融合器 Download PDF

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CN201861800U
CN201861800U CN2010205862628U CN201020586262U CN201861800U CN 201861800 U CN201861800 U CN 201861800U CN 2010205862628 U CN2010205862628 U CN 2010205862628U CN 201020586262 U CN201020586262 U CN 201020586262U CN 201861800 U CN201861800 U CN 201861800U
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fusion device
screw
movable block
groove
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朱军磊
刘治辉
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Hu Huanyu
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Beijing Fule Science & Technology Development Co Ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
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  • Heart & Thoracic Surgery (AREA)
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Abstract

本实用新型涉及一种可调式膨胀融合器,属于医疗器械领域,适用于胸腰椎后路手术。可调式膨胀融合器由螺钉(1)、融合器体(2)和活动块(3)组成,其特征在于:螺钉(1)表面有外螺纹,右端有锥面、凹槽,左端有内六方孔;融合器体(2)右端为弧状,左端有开槽、螺纹台阶孔,中心为中空结构,上下端面为弧状且有倒齿;活动块(3)中心为通槽,左端有通孔和开槽,活动块(3)右端为弧状且为斜台。首先确定可调式膨胀融合器植入的深度和方位,钻孔,拧入椎体钉,椎间隙撑开,植入可调式膨胀融合器,调节螺钉(1),使融合器体(2)逐渐膨胀起来,调节可调式膨胀融合器,撑开椎体,直至达到手术预期效果,恢复病人的正常生理曲度。

Description

可调式膨胀融合器
技术领域
本实用新型涉及一种可调式膨胀融合器,属于医疗器械领域,适用于胸腰椎后路手术。 
背景技术
腰椎间融合术是治疗脊柱疾病的方法之一,每年越来越多的人群接受椎间融合术的治疗。椎间融合术包括自体骨移植融合和异体骨移植融合,由于自体骨来源有限,增加供区创伤、不能提供及时的机械稳定等缺点使得椎间融合术的临床应用受到限制,而异体骨移植不仅费用高、数量有限而且由异体骨引起的病毒传播和免疫排斥也是影响其在临床广泛应用的主要原因。近年来,为提高骨移植融合率,减少外固定依赖性,改善和保持脊柱的曲度,椎间融合器应运而生。 
椎间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后的椎间隙重建,椎间融合器按照外形、结构不同,主要分为三类:第一种为带有螺纹的中空圆柱体状,其设计类似于界面螺钉,通过拧入椎间隙达到融合;第二种为垂直环形融合器,以钛笼和环形融合器等为代表,它可在术中根据融合需要剪切钛笼调整高度,一般应用于前路融合,并需配合前路或后路的固定;第三种为长方体形,中空,四周开孔,内部填充骨屑,平放于椎间隙内,但长方体形融合器植入时对骨性结构破坏大。 
发明内容
本实用新型正是在保留现有技术优点的前提下,克服其弊端,具有构造合理、操作便捷、可调式膨胀的优点。 
本实用新型的技术方案如下: 
可调式膨胀融合器,由螺钉(1)、融合器体(2)和活动块(3)组成,其特征在于:螺钉(1)表面有外螺纹,右端有锥面、环形凹槽,左端有环形槽和内六方孔;融合器体(2)右端为弧状,左端有开槽、螺纹台阶孔,中心为中空结构,前后端面有通槽,通槽左端有两个斜形槽,且右端有斜台和开槽,融合器体(2)上下端面为弧状且有倒齿,上下端面有长圆状通槽;活动块(3)中心为通槽,左端有通孔和开槽,活动块(3)右端为弧状且为斜台。 
螺钉(1):表面有外螺纹,右端有锥面、环形凹槽,螺钉(1)穿过活动块(3)左端通孔,螺钉(1)右端环形凹槽与活动块(3)通孔配合,使螺钉(1)锥面卡在活动块(3)中心通槽中,防止螺钉(1)退出活动块(3),左端有内六方孔,便于器械持取,螺钉(1)可设计出多种规格,供手术时选用。 
融合器体(2):右端为弧状,左端有开槽、螺纹台阶通孔,中心为中空结构,前后端面有通槽,通槽左端有两个斜形槽,且右端有斜台和开槽,融合器具有弹性,右端向内合拢,融合器体(2)上下端面为弧状且有倒齿,在撑开过程中主动嵌入终板,提供更为强大的及时防滑移作用,防止融合器植入后退出,活动块(3)通过融合器体(2)前后端面的通槽***其中,螺钉(1)沿着融合器体(2)左端的螺纹台阶孔旋进,调节螺钉(1),推动活动块(3),使活动块(3)右端斜台处***融合器体(2)右端开槽处,使融合器体(2)逐渐膨胀起来,可调式膨胀融合器可实现0°~15°范围的调整,撑开椎体,直至达到手术预期效果,可调式膨胀融合器适用于不同弧度需求的病人,以恢复病人的正常生理曲度,融合器体(2)可设计出多种规格,供手术时选用。 
通过术前CT或X光等诊断脊椎病症,实施胸腰椎后路手术:切除或清理损伤的椎间盘和椎体节段,根据患者主诉和诊断结果确定所固定节段、所用内植 入物包括可调式膨胀融合器的尺寸和数量。首先确定可调式膨胀融合器植入的深度和方位,在椎体上实施钻孔,拧入椎体钉,椎间隙撑开,调节撑开器,使椎间隙高度得以恢复,根据撑开椎间高度选择试模,确定植入大小,植入可调式膨胀融合器,填塞碎骨,调节螺钉(1),使融合器体(2)逐渐膨胀起来,调节可调式膨胀融合器,撑开椎体,直至达到手术预期效果,以恢复病人的正常生理曲度。 
可调式膨胀融合器在胸腰椎后路手术时,具有构造合理,操作便捷、可调式膨胀的优点,可调式膨胀融合器操作便捷实用、设计先进、损伤小,易于撑开椎间隙高度、促进融合、易于恢复和维持脊椎生理形态,适宜于骨科临床推广应用。 
附图说明
图1为本实用新型的总体结构示意图; 
图2为本实用新型的俯视图; 
图3为本实用新型的螺钉(1)结构图; 
图4为本实用新型的融合器体(2)结构图; 
图5为本实用新型的融合器体(2)俯视图; 
图6为本实用新型的活动块(3)结构图; 
具体实施方式
下面结合附图对本实用新型作进一步说明。 
可调式膨胀融合器,由螺钉(1)、融合器体(2)和活动块(3)组成,其特征在于:螺钉(1)表面有外螺纹,右端有锥面、环形凹槽,左端有环形槽和内六方孔;融合器体(2)右端为弧状,左端有开槽、螺纹台阶孔,中心为中空 结构,前后端面有通槽,通槽左端有两个斜形槽,且右端有斜台和开槽,融合器体(2)上下端面为弧状且有倒齿,上下端面有长圆状通槽;活动块(3)中心为通槽,左端有通孔和开槽,活动块(3)右端为弧状且为斜台。首先确定可调式膨胀融合器植入的深度和方位,在椎体上实施钻孔,拧入椎体钉,椎间隙撑开,调节撑开器,使椎间隙高度得以恢复,根据撑开椎间高度选择试模,确定植入大小,植入可调式膨胀融合器,填塞碎骨,调节螺钉(1),使融合器体(2)逐渐膨胀起来,调节可调式膨胀融合器,撑开椎体,直至达到手术预期效果,以恢复病人的正常生理曲度。 

Claims (3)

1.可调式膨胀融合器,由螺钉(1)、融合器体(2)和活动块(3)组成,其特征在于:螺钉(1)表面有外螺纹,右端有锥面、环形凹槽,左端有环形槽和内六方孔;融合器体(2)右端为弧状,左端有开槽、螺纹台阶孔,中心为中空结构,前后端面有通槽,通槽左端有两个斜形槽,且右端有斜台和开槽,融合器体(2)上下端面为弧状且有倒齿,上下端面有长圆状通槽;活动块(3)中心为通槽,左端有通孔和开槽,活动块(3)右端为弧状且为斜台。
2.根据权利要求1所述的可调式膨胀融合器,其特征在于,所述的螺钉(1)穿过活动块(3)左端通孔,螺钉(1)右端环形凹槽与活动块(3)通孔配合,使螺钉(1)锥面卡在活动块(3)中心通槽中,防止螺钉(1)退出活动块(3),左端有内六方孔,便于器械持取,螺钉(1)可设计出多种规格。
3.根据权利要求1所述的可调式膨胀融合器,其特征在于,所述的融合器体(2)中心为中空结构,前后端面有通槽,通槽左端有两个斜形槽,且右端有斜台和开槽,融合器具有弹性,右端向内合拢,活动块(3)通过融合器体(2)前后端面的通槽***其中,可调式膨胀融合器可实现0°~15°范围的调整,撑开椎体,融合器体(2)可设计出多种规格。 
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Cited By (18)

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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
CN103655010A (zh) * 2013-11-20 2014-03-26 苏州博习医疗科技有限公司 椎间填充融合装置
CN105232190A (zh) * 2015-10-21 2016-01-13 苏州锐进医疗科技有限公司 一种组配型腰椎间融合器
CN105636555A (zh) * 2013-08-29 2016-06-01 安德鲁·罗杰斯 可膨胀且可调整的脊柱前凸中间体融合***
US9788971B1 (en) 2013-05-22 2017-10-17 Nuvasive, Inc. Expandable fusion implant and related methods
US9801734B1 (en) 2013-08-09 2017-10-31 Nuvasive, Inc. Lordotic expandable interbody implant
CN107536649A (zh) * 2017-07-04 2018-01-05 上海工程技术大学 一种膨胀式牙种植体及其安装方法
CN107865715A (zh) * 2017-12-19 2018-04-03 北京东玥润骐医疗技术发展有限公司 体积可变的椎间融合器及其植入装置
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CN109758271A (zh) * 2019-02-20 2019-05-17 江苏百易得医疗科技有限公司 一种融合器
US10973656B2 (en) 2009-09-18 2021-04-13 Spinal Surgical Strategies, Inc. Bone graft delivery system and method for using same
CN112716662A (zh) * 2021-01-26 2021-04-30 朱腾月 椎间融合器
CN112773485A (zh) * 2019-11-05 2021-05-11 台湾微创医疗器材股份有限公司 脊椎植入结构体
US11446161B2 (en) 2019-08-15 2022-09-20 Adcura, Inc. Translating dual axis adjustable interbody fusion spinal system
US11452614B2 (en) 2013-08-29 2022-09-27 Adcura, Inc. Expandable and adjustable lordosis interbody fusion system
US11648132B2 (en) 2019-09-24 2023-05-16 Adcura, Inc Surgical instrument for operating spinal implant system with dual axis adjustability and method of operating same
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US11660208B2 (en) 2009-09-18 2023-05-30 Spinal Surgical Strategies, Inc. Bone graft delivery system and method for using same
US10245159B1 (en) 2009-09-18 2019-04-02 Spinal Surgical Strategies, Llc Bone graft delivery system and method for using same
US10973656B2 (en) 2009-09-18 2021-04-13 Spinal Surgical Strategies, Inc. Bone graft delivery system and method for using same
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US9788971B1 (en) 2013-05-22 2017-10-17 Nuvasive, Inc. Expandable fusion implant and related methods
US10219915B1 (en) 2013-05-22 2019-03-05 Nuvasive, Inc. Expandable fusion implant and related methods
US10492924B2 (en) 2013-08-09 2019-12-03 Nuvasive, Inc. Lordotic expandable interbody implant
US9801734B1 (en) 2013-08-09 2017-10-31 Nuvasive, Inc. Lordotic expandable interbody implant
US11696836B2 (en) 2013-08-09 2023-07-11 Nuvasive, Inc. Lordotic expandable interbody implant
CN105636555A (zh) * 2013-08-29 2016-06-01 安德鲁·罗杰斯 可膨胀且可调整的脊柱前凸中间体融合***
CN105636555B (zh) * 2013-08-29 2018-06-12 安德鲁·罗杰斯 可膨胀且可调整的脊柱前凸中间体融合***
US9889019B2 (en) 2013-08-29 2018-02-13 Spineex, Inc. Expandable and adjustable lordosis interbody fusion system
US11452614B2 (en) 2013-08-29 2022-09-27 Adcura, Inc. Expandable and adjustable lordosis interbody fusion system
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CN105232190A (zh) * 2015-10-21 2016-01-13 苏州锐进医疗科技有限公司 一种组配型腰椎间融合器
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CN107865715A (zh) * 2017-12-19 2018-04-03 北京东玥润骐医疗技术发展有限公司 体积可变的椎间融合器及其植入装置
CN107865715B (zh) * 2017-12-19 2024-05-14 北京东玥润骐医疗技术发展有限公司 体积可变的椎间融合器及其植入装置
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US11446161B2 (en) 2019-08-15 2022-09-20 Adcura, Inc. Translating dual axis adjustable interbody fusion spinal system
US11660205B2 (en) 2019-08-15 2023-05-30 Adcura, Inc. Dual-axis adjustable spinal systems and interbody fusion devices with fixation
US11648132B2 (en) 2019-09-24 2023-05-16 Adcura, Inc Surgical instrument for operating spinal implant system with dual axis adjustability and method of operating same
CN112773485A (zh) * 2019-11-05 2021-05-11 台湾微创医疗器材股份有限公司 脊椎植入结构体
CN112773485B (zh) * 2019-11-05 2023-11-10 台湾微创医疗器材股份有限公司 脊椎植入结构体
CN112716662A (zh) * 2021-01-26 2021-04-30 朱腾月 椎间融合器

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