Terumo Kabushiki Kaisha

Yousuke Ootani

Yusuke Sekine

Toshiaki Takagi

Ryuusuke Takashige

Satoru Suehara

Yasushi Kinoshita

Katsuhiko Shimizu

Ryota Sugimoto

Ichirou Hirahara

A method is disclosed for treating a living body tissue by cauterizing a sympathetic nerve around a renal artery to block a neurotransmission function of the sympathetic nerve. The method includes inserting a balloon catheter including a balloon on a distal end side of a shaft into a body cavity, and delivering the balloon to the renal artery; inflating the balloon that has been delivered to the renal artery; puncturing a blood vessel wall with at least one protrusive member disposed on an outer surface of the balloon when the balloon is inflated; and after puncturing the blood vessel wall with the protrusive member, cauterizing the sympathetic nerve within a region at a periphery of an electrode disposed on a projecting tip end portion of the protrusive member by supplying a current to the electrode.

Method of treating a living body tissue

A medical device includes a catheter having an opening formed in a side portion of the catheter, an infusion tubing extending within the catheter along an axial direction of the catheter; an infusion needle disposed at a distal portion of the infusion tubing, a connecting part which bendably connects the infusion needle to the distal portion of the infusion tubing, and a bending unit by which the infusion needle located inside the catheter so as to face the opening is bent at the connecting part at essentially a right angle with respect to the distal portion of the infusion tubing.

Medical device

A medical treatment device enables an injection needle to accurately puncture brain tissue at a prescribed position and a drug solution to be injected into brain tissue, while avoiding damage to the brain tissue as the injection needle is handled. The use of the medical treatment device involves inflating a first balloon located on the outside of a catheter, directing a distal portion of a puncture needle, which is located inside the catheter, to outside the catheter through an opening in the catheter, after which the first balloon is deflated and a second balloon is inflated, and moving the catheter towards the brain tissue located on the opening side so that the injection needle projecting from the opening punctures the brain region.

Device for medical treatment

A sinusitis treatment device includes: a flexible first elongated body to be guided into an accessory; an imaging unit which is provided on the first elongated long body, for obtaining an image on the front side of a distal end of the first elongated body; a flexible second elongated body having a lumen in which the first elongated body is inserted; an expansive body which is provided on the second elongated body and which has an effective expansive section capable of radial expansive deformation within a natural ostium located between a nasal cavity and an accessory nasal cavity to push open a stenosed part of the natural ostium; and a positioning unit which is provided on the second elongated body, for positioning the effective expansive section of the second elongated long body moved along the first elongated body relative to the first elongated body.

Otorhinolaryngological treatment device and method

A medical device is configured to position a bag member filled with a therapeutic substance in a prescribed region of the brain. The use of this medical device involves, with a sheath inserted in the brain region, filling a therapeutic substance into a bag member through an infusion tube, followed by retracting the sheath relative to the infusion tube until the bag member protrudes forward beyond the distal end of the sheath. After this, the bag member is put indwelling in the brain region by moving an operating member relative to the infusion tube to detach the bag member from the distal end of the infusion tube.

Growing community of inventors

Ashigarakami-gun, Japan

Yousuke Ootani