Development of muscle biopsy needle for extracting fibrous muscular tissue

We work in research and development of novel needle biopsy system in order to extract muscle tissue with form of fiber. The system consists of an ultrasonic device, an angular adjustment implement, and a needle. The needle has curved shape so penetrates from skin surface perpendicularly and takes route parallel to bone in muscle tissue. We produced prototype of needle setup, conducted the verification experiment using agaerGEL. The shape of developed needle has been verified, the result told us improvement of its material and manufacture method.