OTA TAKAYUKI,太田 貴之,NARITA YUJI,成田 祐治,MOMOSE TERUSUMI,百瀬 輝寿
申请号：
JP2015068191
公开号：
JP2016187395A
申请日:
2015.03.30
申请国别(地区):
JP
年份:
2016
代理人:
摘要：
PROBLEM TO BE SOLVED: To provide a needle-like member that can satisfy both contradictory requests of superior puncture properties and suppression of a bend of a tip, and provide a puncture instrument having the needle-like member.SOLUTION: A needle-like member includes a plate-like base having a first surface and a second surface opposed thereto, and a needle integrally projecting along the in-plane direction of the base. The needle has an apex, a tip with a width in the lateral direction gradually increasing from the apex toward the base part, and a needle body continued to the tip and having substantially the same width in the lateral direction. The tip has a first inclination side and a second inclination side. A first tip angle formed by a straight line passing through a first point and a second point on the first inclination side and the second inclination side is 10° or less. A second tip angle formed by a straight line passing through a third point and a fourth point on the first inclination side and the second inclination side is 20° or more.SELECTED DRAWING: Figure 1【課題】より優れた穿刺性及び先端部の折れ曲がりの抑制という相反する要求をともに満足することのできる針状物部材及び当該針状物部材を有する穿刺器具を提供する。【解決手段】針状物部材は、第１面及びそれに対向する第２面を有する平板状の基部と、基部の面内方向に沿って一体的に突出する針部とを備え、針部は、頂点部、頂点部から基部に向かって短手方向の幅が漸増する先端部、及び先端部に連続し、短手方向の幅が略同一である針胴部とを有し、先端部は、第１傾斜辺と第２傾斜辺とを有し、第１傾斜辺上及び第２傾斜辺上の第１点及び第２点を通る直線により形成される第１先端角度が１０°以下、第１傾斜辺上及び第２傾斜辺上の第３点及び第４点を通る直線により形成される第２先端角度が２０°以上である。【選択図】図１
