Cell treatment for cytodiagnosis or medical treatment instrument for penetrating intravascular occlusion site

Abstract

Abstract Translated from Japanese (57)【要約】 【目的】 細胞採取または血管内閉塞部位貫通処置部は 弾力的に軸部の外形寸法に近い径まで径方向に収束でき る。 【構成】 細胞採取または血管内閉塞部位貫通処置部１ は反撥力を有する複数の単線２または撚線６にて中空な 略球状に形成する。処置部１を軸部５の先端部に形成す る。処置部１は軸部５の外形寸法に近い径まで径方向に 弾力的に収束可能とする。 【効果】 細胞採取または血管内閉塞部位貫通処置部１ を目的部位に導入するカテーテルなどの導入具の径を小 さくできる。目的部位における細胞採取または血管内閉 塞部位貫通治療に際して処置部を拡径操作を行う必要も ない。処置部１は複数の単線または撚線にて形成したた め、操作性がよく安全に細胞採取または血管内閉塞部位 貫通治療ができる。 (57) [Summary] [Purpose] The cell collection or intravascular occlusion site penetrating treatment section can elastically converge to a diameter close to the outer dimension of the shaft section. [Structure] Cell collection or intravascular occlusion site penetration treatment section 1 Is formed into a hollow substantially spherical shape by a plurality of single wires 2 or stranded wires 6 having a repulsive force. The treatment portion 1 is formed at the tip of the shaft portion 5. The treatment portion 1 can be elastically converged in the radial direction to a diameter close to the outer dimension of the shaft portion 5. [Effect] Cell collection or intravascular blockage site penetration treatment section 1 It is possible to reduce the diameter of an introducer such as a catheter that introduces the target material into the target site. It is not necessary to expand the diameter of the treatment portion when collecting cells at the target site or performing treatment for penetrating the intravascular occlusion site. Since the treatment portion 1 is formed of a plurality of single wires or twisted wires, the operability is good and cell collection or intravascular occlusion site penetration treatment can be performed safely.

Inventors

• 👤 Hisayuki Mukai
• 👤 久行 向井

Bibliographic Details