Title :
Bending, torsional and extending active catheter assembled using electroplating
Author :
Haga, Yoichi ; Esashi, Masayoshi ; Maeda, Shigeo
Author_Institution :
Fac. of Eng., Tohoku Univ., Sendai, Japan
Abstract :
This paper reports a new batch fabrication method of active catheters which have bending, torsional and extending functions for medical applications. The active catheter consists of shape memory alloy (SMA) coil for actuator and a stainless steel liner coil. The SMA coil and the liner coil are connected using nickel electroplating and acrylic resin electrodeposition. This novel method makes low cost assembly and small diameter (φ1.4 mm) possible. The new fabrication method of small diameter and thin wall tubular structure which is suitable for active catheters was developed. The tubular structure consists of stainless steel spring coil, evaporated parylene membrane and dip coated biocompatible polyurethane
Keywords :
adhesion; assembling; batch processing (industrial); bending; biocontrol; biomedical equipment; coils; electroplating; intelligent actuators; nickel; shape memory effects; stainless steel; torsion; 1.4 mm; Ni; acrylic resin electrodeposition; active catheters; batch fabrication method; bending function; dip coated biocompatible polyurethane; equivalent circuit; evaporated parylene membrane; extending function; low cost assembly; medical applications; nickel electroplating; shape memory alloy coil actuator; small diameter; stainless steel liner coil; stainless steel spring coil; stiffness control mechanism; thin wall tubular structure; torsional function; Actuators; Assembly; Biomedical equipment; Catheters; Coils; Fabrication; Medical services; Nickel; Shape memory alloys; Steel;
Conference_Titel :
Micro Electro Mechanical Systems, 2000. MEMS 2000. The Thirteenth Annual International Conference on
Conference_Location :
Miyazaki
Print_ISBN :
0-7803-5273-4
DOI :
10.1109/MEMSYS.2000.838513
