Needle guide device for biopsy

A needle guide device for biopsy, comprising:

• a housing comprising:
• a bore provided at a center, an entrance provided at a front of the housing to be connected to the bore, and a slide hole formed in a side of an outer surface to be connected to the bore;
• a core needle coupled to the housing to extend toward the front of the housing and provided with a tip at a front end configured to be inserted into tissue;
• a guide needle assembly comprising:
• a hub detachably accommodated in the bore of the housing through the entrance and including at a center with the bore through which the core needle passes, and
• a guide needle coupled to the bore of the hub and including at a center a passage through which the core needle passes;
• a slide button including at a center a locking hole in which a snap fit is to be locked, and coupled to the slide hole to be movable between a locking position and an unlocking position of the snap fit;
• and
• a spring mounted in the bore of the housing to apply an elastic force in a direction in which the hub is pushed out of the bore of the housing.