A61B2034/303

Asymmetric gear drive for robotic surgical tools

A robotic surgical tool includes an elongate shaft extended through a handle and having an end effector arranged at a distal end thereof, a rack extending along a portion of the shaft and operatively coupled to a knife located at the end effector, a first actuation system housed within the handle and operable to drive the rack and thereby advance or retract the knife at the end effector, the first actuation system including a sector gear engageable with the rack and including a tooth-free zone, and a second actuation system housed within the handle and operable to cause z-axis translation of the shaft through the handle. Rotating the sector gear such that the tooth-free zone faces the rack decouples the shaft from the first actuation system to allow the shaft to freely move in z-axis translation.

ACTIVE DRIVE FOR GUIDEWIRE MANIPULATION
20220072281 · 2022-03-10 ·

A guidewire manipulation system may include a cylindrical drum, having a cylindrical outer drum surface with a helical groove for housing a flexible guidewire and an anchoring mechanism for attaching the flexible guidewire to the drum. The system may also include an outer shell or belt disposed around the drum, forming an opening through which the flexible guidewire exits. The system may also include a first actuator coupled with the drum for rotating the drum about a first axis, and a second actuator coupled with the drum for rotating the system about a second axis.

MICRO-ROBOT CONTROL APPARATUS

The present invention relates to a micro-robot control apparatus. An electromagnetic module for focusing magnetic field and a micro-robot control apparatus comprising the electromagnetic module, according to the present invention, focus the magnetic field in an area of interest where focusing of same is desired to allow a micro-robot to be controlled, and, the apparatus having been simplified, allow efficient setup and operation in the surgery area. Moreover, the number of electromagnets is reduced to thus reduce the number of sources of power, thereby resulting in efficient operation of the apparatus with lowered power consumption. Additionally, by means of a magnetic induction frequency signal reception coil of the micro-robot and the external micro-robot control apparatus equipped with a magnetic induction transmission coil, the micro-robot control apparatus can both generate power wirelessly for the micro-robot, and implementation location recognition of same due to the efficiency of the generated power.

POSITION DETERMINING METHOD, METHOD FOR ACTUATING AN X-RAY DEVICE AND MEDICAL SYSTEM
20220061783 · 2022-03-03 ·

Rapid and precise recording of a VOI is provided while monitoring a robot-assisted movement of a medical object through a hollow organ of a patient. For actuating an x-ray device that has a recording system, a user input for the recording of a recording region is accepted. A previously recorded three-dimensional volume image of at least part of the body, in particular of the hollow organ is provided. A length of travel covered by the object from measurement data and/or control data of the robotic system is ascertained. The current position of the object is ascertained on the basis of the three-dimensional volume image making use of the ascertained length of travel covered and a starting position of the object. The recording system of the imaging device is moved for isocentering and/or superimposing the recording region about the current position of the object. An image of the recording region is recorded.

SYSTEM AND METHOD FOR MOVING A MEDICAL DEVICE FOR TREATING OR DIAGNOSING A PATIENT

A system (10) for moving an intravascular medical device (85) in a vascular network (V) comprises a magnetic actuator (40), a controlling unit (50) and a controlling line driver (60). The controlling line driver (60) is adapted to hold and/or to release a controlling line (70) attached to the medical device (85) at different speeds. The magnetic actuator is adapted to generate a magnetic field (41) at a predetermined location in order to pull the medical device (85) in a pre-determined direction. The controlling unit (50) is adapted to balance at least three forces applied on the medical device (85) and to operate the magnetic actuator (40) and/or the controlling line driver (60).

Systems and methods for kinematic optimization with shared robotic degrees-of-freedom

Systems and methods for kinematic optimization with shared robotic degrees-of-freedom are provided. In one aspect, a robotic medical system includes a base, an adjustable arm support coupled to the base, and at least one robotic arm coupled to the adjustable arm support. The at least one robotic arm is further configured to be coupled to a medical tool that is configured to be delivered through an incision or natural orifice of a patient. The system further includes a processor configured to adjust a position of the adjustable arm support and the at least one robotic arm while maintaining a remote center of movement of the tool.

METHODS AND SYSTEMS FOR INSTRUMENT TRACKING AND NAVIGATION WITHIN LUMINAL NETWORKS
20210322110 · 2021-10-21 ·

Methods and systems for instrument tracking and navigation are described. In one embodiment, a non-transitory computer readable storage medium has stored thereon instructions that, when executed, cause a processor of a device to at least receive position sensor data from at least one position sensor tracking an instrument positioned within a luminal network, determine a first estimated state of the instrument derived from the position sensor data, determine a second estimated state of the instrument based on the position sensor data and at least one other type of position data, determine a location transform based on the second estimated state and the first estimated state, adjust the first estimated state based on the location transform to determine a third estimated state of the instrument, and output the third estimated state of the instrument.

ROBOT-MOUNTED RETRACTOR SYSTEM

A retractor mounting assembly including an end-effector having a body extending between first and second faces. The first face is configured for attachment to an interface plate on the robotic arm of a surgical robot. The second face defines an arm mount. An arm extending between first and second ends with the first end configured for attachment to the end-effector arm mount and the second end providing a retractor mount configured for supportive attachment of a retractor.

IMAGING A ROBOTICALLY MOVED MEDICAL OBJECT
20210315649 · 2021-10-14 ·

A system for imaging a robotically moved medical object has a movement device for robotic movement of the medical object, a medical imaging device, and a processing unit. The processing unit is configured to receive a data set that maps a vessel structure of an examination object and is registered with the medical imaging device, and to determine an object path along the vessel structure toward a target region in the data set. The movement device is configured to move the medical object along the object path and provide an object parameter relating to a movement state of the medical object. The processing unit is further configured to control a positioning of the medical imaging device relative to the examination object as a function of object parameter and object path such that a predefined section of the medical object is mapped in image data acquired by the medical imaging device.

SYSTEMS AND METHODS FOR GUIDANCE OF INTRALUMINAL DEVICES WITHIN THE VASCULATURE

System for guiding an instrument within a vascular network of a patient are disclosed. In some embodiments, the system receives a medical image from a medical imaging device and identifies a distal tip and a direction the instrument in the image. The system may then determine a waypoint for the distal tip of the instrument based at least in part on the position and direction of the distal tip of the instrument. The system may then generate a trajectory command for moving the instrument through the vascular network from the current position to the waypoint. The system may operate in a closed loop. The system may provide the trajectory command to a robotic medical system configured to move the instrument according to the command.