Sumitomo Electric Industries, Limited

Koro Yotsuya

Ichiro Sogawa

Takafumi Uemiya

Shin-ichiro Niwa

Shin-ichi Kanazawa

Kazuhiko Hayashi

Masahiko Kanda

Nao-omi Maeda

Masanori Nishiguchi

Taketsune Morikawa

Munekazu Imamura

Yasuhiko Shirakura

Multiple compartment balloon catheter

A laser beam guiding fiber comprising, in a tip portion of an optical fiber, an oscillating member which oscillates the tip of the optical fiber along a direction which intersects an axis of the optical fiber can irradiate a wide range with laser beam, since the tip of the optical fiber oscillates by means of the oscillating member along the direction which intersects the axis of the optical fiber and the irradiated position with the laser beam reciprocates periodically with the oscillation.

Laser beam guiding fiber assembly

Optical fiber for laser beam guiding for cure

A diagnostic and therapeutic catheter accommodating a plurality of optical fibers and tubes, including a small diameter portion formed at a distal end portion of the catheter, the small diameter portion having at least one duct, the optical fibers and the tubes confronting an inlet of the small diameter portion so as to be retractably inserted into the small diameter portion selectively.

Diagnostic and therapeutic catheter

Method and apparatus for intravascular laser surgery

Laser operating device for intracavitary surgery

A mechanism for bending an elongated body such as the tube of an endoscope without the use of electric elements, thereby eliminating a shock hazard. A shape-memorizing alloy is inserted into the elongated body at portions to be bent. In some embodiments, heat for causing the shape-memorizing alloy and hence the elongated body to bend is produced by light carried by an optical fiber, while in other embodiments frictional heat produced by a mechanism vibrator is employed. In some embodiments using light, a shutter arrangement is added to control the heating of the shape-memorizing alloy.

Mechanism for bending elongated body

A catheter type sensor, which is inserted into a living body in order to directly measure within the living body biological data such as blood pressure, has at least one base in its distal end or intermediate portion, at least one sensor element supported on the base to detect biological data, and lead wires for electrically connecting together the sensor element and an external measuring device. The base, the sensor element and the lead wires are buried in a resin material which has excellent compatibility with living bodies and which is shaped in the form of a catheter. Accordingly, the whole of the cross-sectional area of the sensor can be utilized as a space for mounting the assembly constituted by the base, the sensor element and the lead wires.

Catheter type sensor

Growing community of inventors

Osaka, Japan

Koro Yotsuya