CN203001097U - 螺帽 - Google Patents

螺帽 Download PDF

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Publication number
CN203001097U
CN203001097U CN 201220586288 CN201220586288U CN203001097U CN 203001097 U CN203001097 U CN 203001097U CN 201220586288 CN201220586288 CN 201220586288 CN 201220586288 U CN201220586288 U CN 201220586288U CN 203001097 U CN203001097 U CN 203001097U
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China
Prior art keywords
nut
utility
model
groove
taken out
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Expired - Lifetime
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CN 201220586288
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English (en)
Inventor
李学龙
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.)
Beijing AK Medical Co Ltd
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Beijing AK Medical Co Ltd
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Priority to CN 201220586288 priority Critical patent/CN203001097U/zh
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Publication of CN203001097U publication Critical patent/CN203001097U/zh
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Abstract

本实用新型涉及一种用于骨科的螺帽,该螺帽具有6个小凹槽结构,在螺帽六角的每一个角有一个深1.5mm直径1.5mm的凹槽,应用于骨科手术中,在进行二次手术时,只需要暴露出螺帽,不用扩大手术范围,不置扳手,用小的冲头顶住螺母凹槽击打,即可将螺帽退出,取出内固定物。

Description

螺帽
技术领域
本实用新型涉及一种医疗器械领域的螺帽,特别是一种用于需要二次手术取出内固定植入物的手术。 
背景技术
目前,骨科内固定植入物取出时,常因手术空间小,部位深,局部解剖结构复杂,螺帽扳手放置困难,需要扩大手术范围,部分病人植骨后,内固定植入物周围形成骨壳,需要剔除内固定物周围骨壳后方可进行操作,加大了手术创伤,增加了手术难度。 
实用新型内容
本实用新型的目的是提供一种骨科用螺帽,它能有效的克服现有螺帽扳手放置困难的问题。 
为实现上述目的,本实用新型采取:螺帽其外部轮廓为六方形,中心为M6内螺纹,在螺帽内螺纹周围环形60度均布6个凹槽(1),凹槽深度、直径均为1.5mm,在手术时只需要暴露出内固定植入物,不需要扩大手术范围,不置扳手,应用一个小冲头器械顶住螺帽凹槽(1)击打,即可将螺帽退出,取出内固定植入物。 
附图说明
附图是本实用新型的结构原理图,下面结合附图对本实用新型作进一步说明。 
具体实施方式
附图示出了本实用新型的结构,具有凹槽(1),在螺帽内螺纹的周围60度环绕均布着6个凹槽,深度、直径均为1.5mm,在进行手术时,只需要暴露出内固定植入物,不需要扩大手术范围,不置扳手,应用一个小的冲头器械顶住螺帽凹槽(1)击打,即可将螺帽退出,取出内固定植入物。 

Claims (2)

1.一种骨科用螺帽,其特征在于,该螺帽其外部轮廓为六方形,中心为M6内螺纹,内螺纹四周60度均布环绕6个凹槽(1)。 
2.根据权利要求1所述的螺帽,其特征在于该螺帽具有凹槽(1)结构,该结构的直径为1.5mm深度为1.5mm。 
CN 201220586288 2012-11-02 2012-11-02 螺帽 Expired - Lifetime CN203001097U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220586288 CN203001097U (zh) 2012-11-02 2012-11-02 螺帽

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220586288 CN203001097U (zh) 2012-11-02 2012-11-02 螺帽

Publications (1)

Publication Number Publication Date
CN203001097U true CN203001097U (zh) 2013-06-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220586288 Expired - Lifetime CN203001097U (zh) 2012-11-02 2012-11-02 螺帽

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CN (1) CN203001097U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108938154A (zh) * 2018-05-30 2018-12-07 吉林大学 一种纯钛外挂式骨整合假肢种植体

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108938154A (zh) * 2018-05-30 2018-12-07 吉林大学 一种纯钛外挂式骨整合假肢种植体

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CX01 Expiry of patent term

Granted publication date: 20130619

CX01 Expiry of patent term