Frictional characteristics of clamp surfaces of aneurysm clips finished by laser processing

An aneurysm clip is a medical instrument that is used intraoperatively to clip a ruptured cerebral aneurysm and reduce the risk of rebleeding. To prevent the clips from slipping off the aneurysm neck, it is very important to maintain a constant clamp force. A high frictional coefficient of the clip...

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Main Authors: Isami NITTA, Yosuke TSUKIYAMA, Satoshi NOMURA, Noboru TAKATSU
Format: Article
Language:English
Published: The Japan Society of Mechanical Engineers 2016-05-01
Series:Journal of Advanced Mechanical Design, Systems, and Manufacturing
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/jamdsm/10/2/10_2016jamdsm0026/_pdf/-char/en
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author Isami NITTA
Yosuke TSUKIYAMA
Satoshi NOMURA
Noboru TAKATSU
author_facet Isami NITTA
Yosuke TSUKIYAMA
Satoshi NOMURA
Noboru TAKATSU
author_sort Isami NITTA
collection DOAJ
description An aneurysm clip is a medical instrument that is used intraoperatively to clip a ruptured cerebral aneurysm and reduce the risk of rebleeding. To prevent the clips from slipping off the aneurysm neck, it is very important to maintain a constant clamp force. A high frictional coefficient of the clip blades will also help prevent slippage between the clip blades and the blood vessel. In this study, to raise the frictional coefficients of the clip blades, we used a laser processing machine to produce clamp surfaces of the aneurysm clips with micro-dimples or micro-grooves. The static and dynamic frictional characteristics of the clamp surfaces made in this way were examined. The grooved surfaces with a width of 30 μm and a groove pitch of 40 μm showed the highest frictional coefficient. However, the dimpled surfaces with a shallow depth of 1 μm showed lower frictional coefficients than existing aneurysm clips.
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spelling doaj.art-bddf21f00b484a84b1e2ea92f7837e972022-12-22T01:24:24ZengThe Japan Society of Mechanical EngineersJournal of Advanced Mechanical Design, Systems, and Manufacturing1881-30542016-05-01102JAMDSM0026JAMDSM002610.1299/jamdsm.2016jamdsm0026jamdsmFrictional characteristics of clamp surfaces of aneurysm clips finished by laser processingIsami NITTA0Yosuke TSUKIYAMA1Satoshi NOMURA2Noboru TAKATSU3Niigata University, Department of Mechanical EngineeringNiigata University, Department of Mechanical EngineeringNiigata University, Department of Mechanical EngineeringGosen Factory, MIZUHO CorporationAn aneurysm clip is a medical instrument that is used intraoperatively to clip a ruptured cerebral aneurysm and reduce the risk of rebleeding. To prevent the clips from slipping off the aneurysm neck, it is very important to maintain a constant clamp force. A high frictional coefficient of the clip blades will also help prevent slippage between the clip blades and the blood vessel. In this study, to raise the frictional coefficients of the clip blades, we used a laser processing machine to produce clamp surfaces of the aneurysm clips with micro-dimples or micro-grooves. The static and dynamic frictional characteristics of the clamp surfaces made in this way were examined. The grooved surfaces with a width of 30 μm and a groove pitch of 40 μm showed the highest frictional coefficient. However, the dimpled surfaces with a shallow depth of 1 μm showed lower frictional coefficients than existing aneurysm clips.https://www.jstage.jst.go.jp/article/jamdsm/10/2/10_2016jamdsm0026/_pdf/-char/enaneurysm clipclamp surfacesfrictional coefficientlaser texturingdimplesgroovesmicro-slip
spellingShingle Isami NITTA
Yosuke TSUKIYAMA
Satoshi NOMURA
Noboru TAKATSU
Frictional characteristics of clamp surfaces of aneurysm clips finished by laser processing
Journal of Advanced Mechanical Design, Systems, and Manufacturing
aneurysm clip
clamp surfaces
frictional coefficient
laser texturing
dimples
grooves
micro-slip
title Frictional characteristics of clamp surfaces of aneurysm clips finished by laser processing
title_full Frictional characteristics of clamp surfaces of aneurysm clips finished by laser processing
title_fullStr Frictional characteristics of clamp surfaces of aneurysm clips finished by laser processing
title_full_unstemmed Frictional characteristics of clamp surfaces of aneurysm clips finished by laser processing
title_short Frictional characteristics of clamp surfaces of aneurysm clips finished by laser processing
title_sort frictional characteristics of clamp surfaces of aneurysm clips finished by laser processing
topic aneurysm clip
clamp surfaces
frictional coefficient
laser texturing
dimples
grooves
micro-slip
url https://www.jstage.jst.go.jp/article/jamdsm/10/2/10_2016jamdsm0026/_pdf/-char/en
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AT satoshinomura frictionalcharacteristicsofclampsurfacesofaneurysmclipsfinishedbylaserprocessing
AT noborutakatsu frictionalcharacteristicsofclampsurfacesofaneurysmclipsfinishedbylaserprocessing