Method and system for correcting a QR code image is provided. The ammonia andor ammonia products can be produced by compressing a gas mixture comprising nitrogen, hydrogen, methane, and argon to produce a compressed gas mixture having a pressure of from about 1,000 kPa to about 10,400 kPa. The insertion sheath is located near a meniscal tear, and sharp prongs on the tip of the sheath are used to secure and position the central fragment of the torn meniscus.