Medical three-dimensional thread making method and device using ultrasonic waves

A thread making method using ultrasonic waves, the method comprising:

• (a) inserting a yarn into a position corresponding to a pattern of a mold base between an ultrasonic wave generator and the mold base adjacent to each other;
• (b) applying ultrasonic waves to an entire portion of the yarn disposed between the mold base and the ultrasonic wave generator while the ultrasonic wave generator contacts and pressurizes the entire portion of the yarn disposed between the mold base and the ultrasonic wave generator;
• and
• (c) forming a medical anti-loosening member with a plurality of protrusions around a body made in a form of the pattern due to the ultrasonic waves,
• wherein the pattern of the mold base is a thread having a plurality of protrusions facing each other on both sides,
• wherein the pattern of the mold base is composed of a combination of one or more engraved patterns and one or more embossed patterns,
• wherein the step (c) further comprises making the medical anti-loosening member corresponding to the pattern by vibrating molecules configuring the yarn by using the ultrasonic waves to melt a solid yarn, and
• wherein the ultrasonic wave generator and the mold base are formed in a plate shape and are disposed to share a central axis.