摘要:
A robotic instrument system having a controller including a master input device (12), and an instrument driver (16) in communication with the controller. The instrument driver includes a guide instrument interface including two or more guide instrument drive elements responsive to control signals generated, at least in part, by the master input device for manipulating a guide instrument operatively coupled to the instrument interface, and a sheath instrument interface including two or more sheath instrument drive elements responsive to control signals generated, at least in part, by the master input device for manipulating a sheath instrument operatively coupled to the instrument interface, wherein the sheath instrument drive elements are control independently of the guide instrument control elements.
摘要:
Eine Manipulationsvorrichtung (1) für ein chirurgisches Instrument mit einer Befestigungseinrichtung zur Befestigung der Manipulationsvorrichtung (1) an einem Instrumentenschaft, an welchem mehrere Linearaktoren (2) festlegbar sind, mit einer Werkzeugplattform (8) zur Aufnahme von mindestens einem chirurgischen Werkzeug und mit mehreren passiven Stab-Gelenk-Einheiten (5,9,10,11), deren eines Ende (6) jeweils mit einem zugeordneten Linearaktor (2) verbindbar ist und mittels derer die Werkzeugplattform (8) mit den Linearaktoren (2) in Wirkverbindung bringbar ist, weist mindestens zwei durchgehende Stab-Gelenk-Einheiten (10,11) auf, die jeweils mit der werkzeugplattform (8) verbunden sind und mindestens eine verzweigende Stab-Gelenk-Einheit (10,11), die an einem Verzweigungsabschnitt (12) beabstandet zu der Werkzeugplattform (8) mit einer zugeordneten durchgehenden Stab-Gelenk-Einheit (5) verbunden ist.
摘要:
The position of an imaging catheter in a body structure such as the heart is automatically controlled by a robotic manipulator such that its field of view at all times includes the distal end of a second catheter that is employed to effect a medical procedure. A processor receives signals from position sensors in the catheters. The processor utilizes the information received from the sensors and continually determines any deviation of the second catheter from the required field of view of the imaging catheter. The processor transmits compensation instructions to the robotic manipulator, which when executed assure that the imaging catheter tracks the second catheter.
摘要:
The present invention is directed to a tool having a wrist mechanism that provides pitch and yaw rotation in such a way that the tool has no singularity in roll, pitch, and yaw. A positively positionable multi-disk wrist mechanism includes a plurality of disks or vertebrae stacked in series. Each vertebra is configured to rotate in pitch or in yaw with respect to each neighboring vertebra. Actuation cables are used to manipulate and control movement of the vertebrae. In specific embodiments, some of the cables are distal cables that extend from a proximal vertebra through one or more intermediate vertebrae to a distal vertebra, while the remaining cables are medial cables that extend from the proximal vertebra to one or more of the intermediate vertebrae. The cables are actuated by a pivoted plate cable actuator mechanism.; In specific embodiments, the actuator mechanism includes a plurality of small radius holes or grooves for receiving the medial cables and a plurality of large radius holes or grooves for receiving the distal cables. The holes or grooves restrain the medial cables to a small radius of motion and the distal cables to a large radius of motion, so that the medial cables to the medial vertebra move only a fraction of the amount as the distal cables to the distal vertebra, so as to achieve precise control and manipulation of the vertebrae.
摘要:
A surgical manipulator (10) can manipulate a medical tool (12) with one or more degrees of freedom. In preferred embodiments, the manipulator (10) is a parallel mechanism including a plurality of arms (21, 22) pivotally supporting a medical tool (12), with the orientation of the medical tool (12) being adjusted by varying the position of joints (23, 24) mounted on the arms (21, 22). The motions of the joints (23, 24) can be controlled such that the tool (12) is pivoted about a virtual pivot point located within the body wall of a patient (30). The manipulator (10) can enhance the dexterity of an operator and enable the operator to perform medical procedures more easily than by hand.
摘要:
Robots of this type are used especially in medical technology but are inadequately protected against functional defects. The invention therefore provides for an independent monitoring device consisting of at least three separate, sensor-monitored measuring sections (17) which are located between the support plate (13) and the working plate (14) and are linked to the working plate (14) and the support plate (13) by end points (18, 19), respectively. The measuring sections (17) are also oriented in a diagonal position in relation to the main axis which extends at right angles to the support plate (13) and the working plate (14).
摘要:
A surgical manipulator (10) can manipulate a medical tool (12) with one or more degrees of freedom. In preferred embodiments, the manipulator (10) is a parallel mechanism including a plurality of arms (21, 22) pivotally supporting a medical tool (12), with the orientation of the medical tool (12) being adjusted by varying the position of joints (23, 24) mounted on the arms (21, 22). The motions of the joints (23, 24) can be controlled such that the tool (12) is pivoted about a virtual pivot point located within the body wall of a patient (30). The manipulator (10) can enhance the dexterity of an operator and enable the operator to perform medical procedures more easily than by hand.
摘要:
A system and method of maintaining a tool pose for a computer-assisted medical device with an articulated arm including one or more first joints and one or more second joints, a tool distal to the first joints and the second joints, and a control unit coupled to the first joints and the second joints. The control unit maintains a pose of the tool during movement of the first joints using the second joints by determining a reference coordinate frame for the tool, determining a reference transform of the tool in the reference coordinate frame prior to the movement of the first joints, determining an actual transform of the tool in the reference coordinate frame while the first joints are being moved, determining differences between the reference transform and the actual transform, and maintaining the pose of the tool by driving the second joints based on the differences.