To provide a biopsy needle device which can be manufactured at low cost while reducing or alleviating sound generated at the time of launching a biopsy needle.A holder for an outer needle which holds a hollow outer needle mounted on a housing so as to be movable between an advanced position and a retracted position, a holder for external needles which is movable between a forward position and a retracted position, An inner needle holder that is movably disposed in the outer needle 6 and holds the inner needle 10, an inner needle spring that applies an urging force to move the inner needle holder from the retracted position to the advanced position, and an outer needle spring And a spring for the outer needle which applies an urging force for moving the needle holder from the retracted position to the advanced position, wherein the spring has a storage space for storing the sample between the inner needle and the outer needle, the outer needle holder At least one of the inner needle holder and the inner needle holder is brought into contact with the housing 4 at the advanced position and the opening 20 is provided in the housing.(FIG.【課題】生検針の発射時に発生する音を低減または軽減しつつ、低コストで製造可能な生検針装置を提供する。【解決手段】筐体4と、前進位置と後退位置の間を移動可能に筐体4に装着された、中空な外針6を保持する外針用ホルダーと、前進位置と後退位置の間を移動可能に外針6の内部に配置された、内針10を保持する内針用ホルダーと、内針用ホルダーを後退位置から前進位置へ移動させる付勢力を付与する内針用バネと、外針用ホルダーを後退位置から前進位置へ移動させる付勢力を付与する外針用バネと、を備え、内針10及び外針6の間に試料を格納する格納空間を有し、外針用ホルダー及び内針用ホルダーの少なくとも一方が、前進位置で筐体4と当接し、筐体に開口部20が設けられている生検針装置2を提供する。【選択図】図1
