Ultrasound Balloon Catheter

超音波球囊導管

中華民國：I866877

Chih-Kuang Yeh, Chieh-Yu Tsai

葉秩光, 蔡傑羽

A balloon catheter containing a miniature ultrasound transmitting element is an ultrasound balloon catheter that is used to be introduced into the cardiovascular system for the treatment of stenosis or obstruction of the heart or peripheral blood vessels. The ultrasound balloon catheter comprises: a catheter, which is a flexible tube; a balloon, which is composed of an elastic material and has a dilation part that is subject to expansion and contraction; and a neck that is respectively positioned at the two ends of the dilation part, and the balloon is fixedly positioned on the outer side of the catheter, and an opening in the outer wall of the dilation part and neck is formed in the dilation space to allow a fluid composition to be injected into the dilation space; and the balloon is fixedly located on the outer side of the conduit hose, and the expansion portion and the neck portion form a treatment zone on the outer wall of the conduit hose, so as to allow fluid constituents to be injected into the treatment zone through the openings on the outer wall of the conduit hose; and a transducer is arranged in the expansion part of the balloon, and is sleeved on the outside of the inner tube and on the outer tube wall. The opening is used for emitting ultrasound and inducing the cavitation effect of the microbubbles in the fluid composition located in the treatment zone.

一種含有微型超音波發射元件之球囊導管，是用以導入於心血管系統，對心臟或週邊血管狹窄或阻塞進行治療的超音波球囊導管，超音波球囊導管包括：導管軟管，為具有可撓性的軟管；球囊，由彈性材料構成，具有進行擴張收縮的擴張部、以及分別設置於擴張部兩端的頸部，並藉由頸部將球囊固定設置於導管軟管外側，且擴張部與頸部於導管軟管外壁形成擴張空間，以使流體組成物於外管壁上的開口注入擴張空間；以及超音波探頭，係設置於球囊的擴張部內，且套設於內管件外及外管壁上的開口處，用以發射超音波並誘發位於擴張空間的流體組成物中的微氣泡產生穴蝕效應。