Abstract: The present disclosure relates to a method for producing a nonwoven fabric that improves filtration performance when applied as a filter material. By adjusting the modification ratio of the Y-shaped cross-section of polyester filaments constituting the nonwoven fabric, when applied to a filter by increasing a specific surface area of the nonwoven fabric, it increases the collection amount of the materials to be filtered and maintains a low differential pressure, thus enabling long-term use.

Abstract: The present disclosure relates to a method for preparing a non-woven fabric which improves impregnation and release properties of a fabric softener in the non-woven fabric in order to apply the non-woven fabric to a dryer sheet (sheet-type fabric softener). When increasing porosity and specific surface area in a non-woven fabric made of two-component blended polyester long fibers, impregnation and release rate of a fabric softener are improved even when the non-woven fabric is lightened, making it possible to apply the non-woven fabric to a dryer sheet.

Abstract: This invention relates to an artificial knee joint component capable of adjusting alignment or balancing (extension gap and flexion gap) between the tibia and the femur.

Abstract: An artificial knee joint is provided in which a flexion is formed at the bearing member and includes a femur joint member which is joined to an end portion of a tibia near a femur; a tibia joint member which is joined to an end portion of a femur near a tibia; and a bearing member between the femur joint member and the tibia joint member, wherein the bearing member includes a groove where a planar front flexion and a planar rear flexion at an upper plane, in order to provide an artificial knee joint movement similar to a real knee movement.

Abstract: An intramedullary nail, a device for inserting a screw into the same, and a insertion method thereof. Guide holes are formed between the nail inserted to the medullary cavity and a distal screw guide member. A guide wire having a much smaller diameter than each guide hole is inserted into the guide hole and drilling is then performed along the guide wire. Then, a metal screw is remained into the intramedullary nail to prevent the nail from moving up and down and twisting, thereby allowing easy and accurate insertion of the distal metal screw without an aid of an X-ray imaging device. Therefore, an operation time can be reduced, unnecessary bone damage or infection of a patient can be prevented and a patient and/or surgeon's exposure to X-ray radiations can be considerably reduced.