Disclosed are an air bubble ingress prevention mechanism, a liquid material discharge device provided with the air bubble ingress prevention mechanism, and a liquid material discharge method, with which a constant filled state can be achieved without variations and without requiring any additional equipment when a metering section is filled with liquid material. User input also defines collection filter rules to be met when including failure data within an error report. Further, as the robot cleaner runs on a user’s desired region in a manual manner, a designated region can be precisely set. Bit line spacers covers side walls of the bit line patterns, buried holes penetrate predetermined regions of the bit line interlayer insulating layer between the bit line patterns. As a result of the increased compressive force or pressure on the tissue, after staple deployment, blood flow proximate deformable member puncture holes can be reduced. A eutectic alloy joint is then formed between the electrodes and the interconnecting pattern.