Patent application number | Description | Published |
20110288579 | MANIPULATOR - Provided is a manipulator including a first forceps piece and a second forceps piece, which are connected by a pivotal axle and have a gripping part opened or closed on a leading end side thereof. The manipulator includes a manipulation member that is connected to a base end side of the pair of forceps pieces, and moves forward or backward in an axial direction to open or close the gripping part, a first buffer part that has a first spring constant, and undergoes elastic deformation to change a grasping force generated at the gripping part on the basis of the first spring constant and a pulling amount of the manipulation member, and a stopper that regulates the elastic deformation of the first buffer part. | 11-24-2011 |
20120136370 | MEDICAL MANIPULATOR - A medical treatment device includes: a treatment portion including a first forceps piece and a second forceps piece that are coupled to each other so as to be relatively rotatable about a forceps rotation shaft; an operation member at least a part of which has flexibility and a front end of which is connected to a base end of the treatment portion; and a sheath portion which has flexibility and through which the operation member is inserted so as to be movable forward and backward in a longitudinal direction, wherein in the operation member, a range with a predetermined length from a front end is a hard portion with rigidity higher than that of an other portion. | 05-31-2012 |
20120239011 | MEDICAL TREATMENT TOOL AND MANIPULATOR - This medical treatment tool includes: an end effector which has a first forceps piece and a second forceps piece; an operating member that the pair of forceps pieces to rotate and opens/closes; and a link member whose distal end portion is coupled to the forceps piece, and whose proximal end portion is coupled to the operating member; wherein the drive axis of the proximal end portion is parallel with the axis of the operating member; the distance between the distal end portion and the drive axis of the proximal end portion is shorter than the length of the link member; and the length of projection on the drive axis is shorter than the length of projection on the drive axis of a line segment which connects the distal end portion and the center of rotation. | 09-20-2012 |
20130066333 | SURGICAL INSTRUMENT AND MEDICAL MANIPULATOR - A surgical instrument for performing treatment to a treatment target portion includes a cylindrical elongated member; a treatment part, and a connection part. The connection part includes a first turning axis part provided to the elongated member, a second turning axis part provided to the treatment part, a first rolling guide part that is provided to the elongated member and includes a circular-arc-shaped part coaxial with the first turning axis part, a second rolling guide part that is provided to the treatment part and includes a rolling guide part including a circular-arc-shaped part coaxial with the second turning axis part, the rolling guide part rollingly contacting the first rolling guide part, and an engaging part that brings the treatment part and the elongated member into an engaging state. The connection part is detachable between the first turning axis part and the second turning axis part. | 03-14-2013 |
20140236178 | MEDICAL TREATMENT TOOL AND MANIPULATOR INCLUDING THE SAME - A medical treatment tool includes a treatment section which has a pair of treatment tool pieces that is rotatably supported with respect to a substrate, a manipulating member which rotates the pair of treatment tool pieces, and opens and closes the pair of treatment tool pieces, a link member which has a first end and has a second end, a coupling member which couples the link member and the manipulating member at the second end; a movement indicating part which moves interlocking with a movement of the coupling member in an advance and retraction direction of the manipulating member and is provided so that an amount of movement with respect to the substrate is visually recognized from an outside of the substrate; and a reference index part which is provided at the substrate and refers to a amount of relative movement of the movement indicating part to the substrate. | 08-21-2014 |
20140249545 | MEDICAL TREATMENT TOOL AND MANIPULATOR INCLUDING THE SAME - Provided is a medical treatment tool, the distance between a first advance and retraction axis, and a tip end is shorter than the length of the first link member, and the length when a line segment connecting the base end and the center of a forceps rotation shaft is projected on the first advance and retraction axis is shorter than the length is projected on the first advance and retraction axis. The distance between a second advance and retraction axis, and a tip end is shorter than the length of the second link member, and the length when a line segment connecting the base end and the center of a forceps rotation shaft is projected on the second advance and retraction axis is shorter than the length projected on the second advance and retraction axis. | 09-04-2014 |
20150142014 | SURGICAL TOOL AND MEDICAL MANIPULATOR - In a surgical tool, the treatment tool piece operating joint includes a first operating rotation member which is coupled to the moving member and is rotated around a predetermined rotation center; a second operating rotation member which is coupled to the first operating rotation member so as to relatively rotate around a rotation center coaxial with the second bending rotary shaft in a rotation direction opposite to a rotation direction of the first operating rotation member or around a rotation center that is a position closer to the first bending rotary shaft than the second bending rotary shaft in a rotation direction opposite to a rotation direction of the first operating rotation member; and a link which converts a rotational force of the second operating rotation member into the operation of the treatment tool piece. | 05-21-2015 |
20160000503 | MEDICAL DEVICE AND MEDICAL SYSTEM - A medical device includes an insertion portion, and a driving mechanism coupled to the insertion portion, wherein the insertion portion includes a treatment portion configured to perform a treatment on a target portion, a joint portion capable of supporting the treatment portion and changing a direction of the treatment portion, a storage portion provided in the joint portion and capable of internally accommodating the treatment portion, and a driving force transmission portion connected to the joint portion and configured to transmit a driving force for changing the direction of the treatment portion to the joint portion, wherein the driving mechanism includes a driving force generation portion configured to generate the driving force, and wherein the treatment portion enters and exits the storage portion by the driving force transmitted from the driving force generation portion to the joint portion through the driving force transmission portion. | 01-07-2016 |