Patent ID: 9248256
Filing Date: 2016-02-02
CPC Classification: A61M

Claim Text:
1. A device for medical treatment for use in a brain comprising: a catheter configured to be positioned in the brain, the catheter possessing a center axis and an outer circumferential surface, and having an opening in the outer circumferential surface; an injection needle positioned inside the catheter, the injection needle being positionable in facing relation to the opening; an injection needle bender positioned in the catheter at a position facing the opening, the injection needle and the injection needle bender being contactable with one another during use of the device to bend the injection needle toward and through the opening so the injection needle projects outwardly beyond the outer circumferential surface of the catheter; a first expandable-and-contractible member on the outer circumferential surface of the catheter at a position spaced from the opening along an axial direction of the catheter, the first expandable-and-contractible member being expandable to contact brain tissue on an opening side of the catheter at which the opening is located to space the opening side of the catheter from the brain tissue located on the opening side and thereby provide a space for the injection needle after the injection needle is bent by the injection needled bender; and wherein the injection needle bender is an expandable and contractible balloon, the balloon being expandable to contact the injection needle and bend the injection needle.