摘要:
The invention provides an articulating mechanism useful, for example, for remote manipulation of various surgical instruments and diagnostic tools within, or to, regions of the body. Movement of segments (A1, B1, D1) at the proximal end (106, 107, 121, 606, 806, 1711, 1801) of the mechanism results in a corresponding, relative movement of segments (A2, B2, D2) at the distal end (108, 109, 123, 604, 808, 1721, 1822) of the mechanism. The proximal and distal segments are connected by a set of cables (104) in such a fashion that each proximal segment forms a discrete pair with a distal segment. This configuration allows each segment pair to move independently of one another and also permits the articulating mechanism to undergo complex movements and adopt complex configurations. The articulating mechanisms may also be combined in such a way to remotely mimic finger movements for manipulation of an object or body tissue.
摘要:
Provided is a manipulator (1) including an elongated main unit (3), a bending portion (5), and a distal end portion (4) that are disposed in this order from a basal end; a plurality of main bending mechanisms (6) having main linear members (7) that extend from the distal end portion (4) to the main unit (3), main motive-power generating portions (12), and main motive-power transmitting portions (9,10, and 11) that transmit motive powers generated by the main motive-power generating portions (12) to the main linear members (7) in the form of linear motions in the longitudinal direction; a plurality of auxiliary bending mechanisms (16) that are provided so as to form pairs with the respective main bending mechanisms (6) and parallel thereto and that exert a pressing force and a tensile force on the distal end portion (4); and switching portions (151 and 152) that selectively actuate either the main bending mechanisms (6) or the auxiliary bending mechanisms (16), which are paired.
摘要:
Provided is a manipulator (1) including an elongated main portion (3), a distal end portion (4), and a bendable portion 5) provided between the main portion (3) and the distal end portion (4); a plurality of linear members (6) that extend from the distal end portion (4) to the main portion (3) via the bendable portion (5); a power generator (9); a plurality of power transmitters (8, 10, 11) that transmit, to proximal ends of the linear members (6), the power generated by the power generator (9) as linear motion in a longitudinal direction of the main portion (3); and a linear-member relaxing unit (12) that relaxes the linear members (6) in which tension is generated between the distal end portion (4) and the power transmitters (8, 10, 11) by pushing and pulling of the linear members (6) by the linear motion transmitted from the power transmitters (8, 10, 11).
摘要:
A structure comprises an elongate, resiliently deformable cable, a body section comprising a cable-receiving aperture, said aperture being dimensioned so as to retain a length of said cable within it in use while permitting relative movement of said cable relative to the aperture in a direction along the length of the cable upon application of a set manipulating force, and retaining means for retaining the cable at a set position relative to the body section absent application of said force, wherein the cable at least partially defines the shape of the structure, and said shape may be changed by application of said manipulating force thus causing relative movement between the cable and the body section in a direction along the length of the cable.
摘要:
A multi-jointed robot arm (10). The robot arm 10 comprises at least first and second link members (20, 21) connected by a connection arrangement (26) and at least a first control cable (22). A first end (32) of the first control cable (22) engages with a first engagement point (41) of the first link member (20) and a first attachment (32) point of the second link member (21). A second end (36) of the first cable (22) engages with a second engagement point (43) of the first link member (20) spaced from the first engagement point (41), and a second attachment point (34) of the second link member (21) spaced from the first attachment point (32), the assembly (10) further comprising a first actuator (28) configured to selectively tension the first end (32) of the first control cable (22) such that the second link member (21) pivots toward a first side, and to selectively tension the second end (34) of the first control cable (22) such that the second link member (21) pivots toward a second side, wherein the connection arrangement (26) is arranged to pivot at a first pivot point (C) located substantially along a notional line extending between the first and second attachment points (32, 34), and to pivot at a second pivot point (D) extending between the first and second engagement points (41, 43).
摘要:
An apparatus for driving an articulating probe comprises an elongate probe constructed and arranged to articulate in at least one predetermined degree of motion and to transition from a flexible state to a rigid state, and a force transfer mechanism constructed and arranged to apply a force to the probe. The force is selected from the group consisting of a force that causes probe to articulate in the at least one predetermined degree of motion and a force that causes the probe to transition from the flexible state to the rigid state. The base structure is attached to portion of the force transfer mechanism and the elongate probe; the base structure comprising one or more stabilizing elements constructed and arranged to resist undesired movement of the probe caused by force from the force transfer mechanism.
摘要:
The invention provides an articulating mechanism useful, for example, for remote manipulation of various surgical instruments and diagnostic tools within, or to, regions of the body. Movement of segments (A1, B1, D1) at the proximal end (106, 107, 121, 606, 806, 1711, 1801) of the mechanism results in a corresponding, relative movement of segments (A2, B2, D2) at the distal end (108, 109, 123, 604, 808, 1721, 1822) of the mechanism. The proximal and distal segments are connected by a set of cables (104) in such a fashion that each proximal segment forms a discrete pair with a distal segment. This configuration allows each segment pair to move independently of one another and also permits the articulating mechanism to undergo complex movements and adopt complex configurations. The articulating mechanisms may also be combined in such a way to remotely mimic finger movements for manipulation of an object or body tissue.