CN202568425U - 带拧出装置的锁定螺钉 - Google Patents

带拧出装置的锁定螺钉 Download PDF

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CN202568425U
CN202568425U CN 201220154882 CN201220154882U CN202568425U CN 202568425 U CN202568425 U CN 202568425U CN 201220154882 CN201220154882 CN 201220154882 CN 201220154882 U CN201220154882 U CN 201220154882U CN 202568425 U CN202568425 U CN 202568425U
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screw
cylinder
round platform
shank
afterbody
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王强
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Abstract

本实用新型公布了一种带拧出装置的锁定螺钉,现有技术中的螺钉容易滑牙,不能拧出,本实用新型包括螺钉尾部、螺钉杆和螺钉尖端,螺钉尾部、螺钉杆和螺钉尖端为一体成形。所述的螺钉尾部为一体成型的圆台与圆柱体,圆台上底面与螺钉杆的底面大小一致,螺钉尾部下底面开有一多边形凹槽,圆台外侧面带有螺纹,圆柱体的底面与圆台的下底面大小一致,圆柱体外侧面带有多个凹槽或凸纹或者横截面为多边形;螺钉杆为一带有螺纹的圆柱杆;螺钉尖端为钻头形,本实用新型在拆钉时即使滑牙,也可借助螺钉尾部凹槽或凸纹部分取出螺钉,大大减少手术时间和风险。

Description

带拧出装置的锁定螺钉
技术领域
本实用新型涉及一种锁定螺钉,尤其涉及一种带拧出装置的锁定螺钉。 
背景技术
2001年AO公司实用新型了锁定接骨板,10余年来其广泛应用于骨科创伤的手术治疗。但该接骨板有一缺点就是拆除时锁定螺钉容易滑牙,不能拧出。要取出滑牙的螺钉往往需要将螺尾钻除,费时费力,增加手术风险。 
发明内容
本实用新型针对现有技术的不足,提供了一种带拧出装置的锁定螺钉。 
本实用新型为一种带拧出装置的锁定螺钉,包括螺钉尾部、螺钉杆和螺钉尖端,螺钉尾部、螺钉杆和螺钉尖端为一体成型。 
所述的螺钉尾部为一体成型的圆台与圆柱体,圆台上底面与螺钉杆的底面大小一致,螺钉尾部下底面开有一多边形凹槽,圆台外侧面带有螺纹,圆柱体的底面与圆台的下底面大小一致,圆柱体外侧面带有多个凹槽或凸纹或者横截面为多边形; 
所述的螺钉杆为一带有螺纹的圆柱杆;
所述的螺钉尖端为钻头形。
本实用新型所具有的有益效果:拆钉时即使滑牙,也可借助螺钉尾部凹槽或凸纹部分取出螺钉,大大减少手术时间和风险。 
附图说明
图1为带凸纹的锁定螺钉的侧面图; 
图2为带凸纹的锁定螺钉尾部的俯视图;
图3为带凹槽的锁定螺钉的侧面图;
图4为带凹槽的锁定螺钉尾部的俯视图;
图5为横截面为正多边形的锁定螺钉的侧面图;
图6为横截面为正多边形的锁定螺钉尾部的俯视图。
具体实施方式
本实用新型一种带拧出装置的锁定螺钉,包括螺钉尾部、螺钉杆和螺钉尖端,螺钉尾部、螺钉杆和螺钉尖端为一体成型结构。 
如图1、图2所示,所述的螺钉尾部为一体成型的圆台与圆柱体,圆台上底面与螺钉杆的底面大小一致,螺钉尾部下底面开有一六边形凹槽,圆台外侧面带有螺纹,圆柱体的底面与圆台的下底面大小一致,圆柱体外侧面带有4个凹槽,螺钉杆为一带有螺纹的圆柱杆,螺钉尖端为钻头形。 
如图3、图4所示,所述的螺钉尾部为一体成型的圆台与圆柱体,圆台上底面与螺钉杆的底面大小一致,螺钉尾部下底面开有一六边形凹槽,圆台外侧面带有螺纹,圆柱体的底面与圆台的下底面大小一致,圆柱体外侧面带有4个凸纹,螺钉杆为一带有螺纹的圆柱杆,螺钉尖端为钻头形。 
如图5、图6所示,所述的螺钉尾部为一体成型的圆台与圆柱体,圆台上底面与螺钉杆的底面大小一致,螺钉尾部下底面开有一六边形凹槽,圆台外侧面带有螺纹,圆柱体的底面与圆台的下底面大小一致,圆柱体外侧面横截面为正八边形,螺钉杆为一带有螺纹的圆柱杆,螺钉尖端为钻头形。 

Claims (1)

1.带拧出装置的锁定螺钉,其特征在于:包括螺钉尾部、螺钉杆和螺钉尖端,螺钉尾部、螺钉杆和螺钉尖端为一体成型,
所述的螺钉尾部为一体成型的圆台与圆柱体,圆台上底面与螺钉杆的底面大小一致,螺钉尾部下底面开有一多边形凹槽,圆台外侧面带有螺纹,圆柱体的底面与圆台的下底面大小一致,圆柱体外侧面带有多个凹槽或凸纹或者横截面为多边形;
所述的螺钉杆为一带有螺纹的圆柱杆;
所述的螺钉尖端为钻头形。
CN 201220154882 2012-04-13 2012-04-13 带拧出装置的锁定螺钉 Expired - Fee Related CN202568425U (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102614010A (zh) * 2012-04-13 2012-08-01 王强 一种带拧出装置的锁定螺钉
CN109259845A (zh) * 2018-10-16 2019-01-25 创辉医疗器械江苏有限公司 一种环形避空的动态锁定螺钉及其加工方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102614010A (zh) * 2012-04-13 2012-08-01 王强 一种带拧出装置的锁定螺钉
CN109259845A (zh) * 2018-10-16 2019-01-25 创辉医疗器械江苏有限公司 一种环形避空的动态锁定螺钉及其加工方法

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