Small diameter active catheter using shape memory alloy

Author

Haga, Y. ; Tanahashi, Y. ; Esashi, M.

Author_Institution

Fac. of Eng., Tohoku Univ., Sendai, Japan

fYear

1998

fDate

25-29 Jan 1998

Firstpage

419

Lastpage

424

Abstract

Three kinds of active catheters whose outside diameters are less than 2 mm were fabricated. One uses polymer links, the other two are linkless active catheters using adhesive. Distributed shape memory alloy (SMA) coil were used as actuators for the active motion. There are endoskeletal type and exoskeletal type in the linkless active catheters. We have applied the endoskeletal type active catheter to intraureteral ultrasonography used in a kidney. Concept of an advanced multifunction active catheter is mentioned

Keywords

adhesion; biocontrol; biomedical equipment; biomedical ultrasonics; kidney; microactuators; polymers; shape memory effects; surgery; 2 mm; adhesive; diagnosis; distributed shape memory alloy coil; endoskeletal type; exoskeletal type; intraureteral ultrasonography; kidney; linkless active catheters; multifunction active catheter; polymer links; shape memory alloy; therapy; Actuators; Catheters; Coils; Hospitals; Humans; Integrated circuit interconnections; Medical treatment; Polymers; Shape memory alloys; Ultrasonography;

fLanguage

English

Publisher

ieee

Conference_Titel

Micro Electro Mechanical Systems, 1998. MEMS 98. Proceedings., The Eleventh Annual International Workshop on

Conference_Location

Heidelberg

ISSN

1084-6999

Print_ISBN

0-7803-4412-X

Type

conf

DOI

10.1109/MEMSYS.1998.659793

Filename

659793