An endoscopic capsule system comprising: an endoscopic capsule having magnetic characteristics; an extracorporeal guiding and moving apparatus having a moveable multi-hinged cantilever arm which is pivotably mounted at a support stand at one end and at an effector having magnetic characteristics at the other end to move the endoscopic capsule in accordance with movement of the effector; a controller device to define the position and orientation of the endoscopic capsule relative to the effector, and a force and/or moment generation device or a braking device to generate counter forces and/or counter moments or braking forces against moving and/or guiding forces that are manually applied to the cantilever arm and/or effector in accordance with the actually defined position and/or orientation of the endoscopic capsule relative to the effector.

Systems and methods for electromagnetic distortion detection are disclosed. In one aspect, the system includes an electromagnetic (EM) sensor configured to generate an EM sensor signal in response to detection of the EM field. The system may also include a processor configured to calculate a baseline value of a metric indicative of a position of the EM sensor at a first time and calculate an updated value of the metric during a time period after the first time. The processor may be further configured to determine that a difference between the updated value and the baseline value is greater than a threshold value and determine that the EM field has been distorted in response to the difference being greater than the threshold value.

A method where a propeller is set into locomotion relative to a medium at least partially surrounding the propeller. An actuator induces a rotation of the propeller relative to the medium and about a rotational axis of the propeller, and the propeller converts its rotational movement into locomotion relative to the medium. The aspect ratio of at least one cross-section of the propeller is three or more. Also a helical or modifiedly helical propeller for converting rotational movement of the propeller into locomotion of the propeller relative to a medium at least partially surrounding the propeller, where the aspect ratio of at least one cross section of the propeller is three or more. And a method of producing a propeller, including the step of providing a plate extending along the helical axis, where the aspect ratio of at least one cross section of the plate is three or more.

A control system for a capsule endoscope is provided. The control system includes a balance arm device, a mechanical arm, a permanent magnet and a 2-DOF rotary platform. The bottom of the balance arm device is fixed, and the active end of the balance arm device connects with a boom. The bottom of the mechanical arm is fixed, and the active end of the mechanical arm connects with a spherical hinge. The 2-DOF rotary platform is fixed below the boom and the permanent magnet is located in the 2-DOF rotary platform. The spherical hinge connects to the boom, assisting the permanent magnet to move around a fan-shaped area around a subject.

A surgical visualization feedback system is disclosed. The surgical visualization feedback system comprises an emitter assembly configured to emit electromagnetic radiation toward an anatomical structure. The emitter assembly comprises a structured light emitter configured to emit a structured light pattern on a surface of the anatomical structure and a spectral light emitter configured to emit spectral light capable of penetrating the anatomical structure. The surgical visualization feedback system further comprises a waveform sensor assembly configured to detect reflected electromagnetic radiation corresponding to the emitted electromagnetic radiation and a control circuit in signal communication with the waveform sensor assembly. The control circuit is configured to receive an input corresponding to a selected surgical procedure, determine an identity of a targeted structure within the anatomical structure based on the selected surgical procedure and the reflected electromagnetic radiation, and confirm the determined identity of the targeted structure through a user input.

Some embodiments provide a system for external manipulation of magnetic nanoparticles in vasculature using a remotely placed magnetic field-generating stator. In one aspect, the systems and methods relate to the control of magnetic nanoparticles in a fluid medium using permanent magnet-based or electromagnetic field-generating stator sources. Such a system can be useful for increasing the diffusion of therapeutic agents in a fluid medium, such as a human circulatory system, which can result in substantial clearance of fluid obstructions, such as vascular occlusions, in a circulatory system resulting in increased blood flow.

The present invention is directed to a surgical instrument with a robotics system, a memory device and an end effector having an elongate channel, knife position sensor(s) and a firing bar coupled to a knife. In response to drive motions initiated by the robotics system, the firing bar may translate within the elongate channel. As the firing bar translates, the sensor(s) transmit a signal to the memory device. The position of the knife may be determined from the output signals and may be communicated to the robotics system or instrument user. The sensors may be Hall Effect sensors.

The present disclosure relates to a magnetic trap system (1000) comprising: a microscopic device (300), comprising a principal axis extending in a longitudinal direction; a trap (100) for magnetically confining the microscopic device in a confinement region (CR); a receptable zone (RZ) for receiving biological mattermatter (400, 800), the receptable zone (RZ) comprising the confinement region (CR); a mechanical device (200) for providing a relative movement between the receptable zone (RZ) and the microscopic device (300);

wherein the trap (100) is hollow about a longitudinal axis (A), comprises the receptable zone, and provides a magnetic field gradient configured to confine the microscopic device to the confinement region (CR) of the trap (100); wherein the orientation of the magnetic field in the confinement region (CR) is to align the microscopic device in the confinement region (CR) with the longitudinal axis (A) of the confinement region.

A control method, a control system, an electronic device and a readable storage medium for a capsule endoscope are disclosed. The method comprises: obtaining the initial distance H between the capsule endoscope and an external magnetic field generating device based on magnetic field information when the capsule endoscope is positioned in the vertical direction of the magnetic field generating device in an initial state; presetting a target area according to the force balance of the in vivo capsule endoscope, and adjusting the distance between a second permanent magnet and the capsule endoscope to locate the capsule endoscope in the target area; monitoring the acceleration of the capsule endoscope, and determining the vertical component of acceleration of the capsule endoscope; and adjusting the current of the electromagnetic induction coil according to the vertical component of the acceleration to finely adjust the force balance of the capsule endoscope in the target area.

Rail tension extraction devices and methods of extracting target(s) inside a patient's body are disclosed. The device includes a base assembly having a handle and an elongate base. The device additionally includes at least one magnet configured to engage a metallic target, and a capture element received in the base assembly and disposed adjacent to the at least one magnet. The capture element is configured to at least partially surround the metallic target engaged by the at least one magnet. The device further includes an outer tube configured to move relative to the elongate base between a locking position in which a distal end of the outer tube is adjacent the capture element and the at least one magnet to secure the metallic target therebetween, and an unlocking position in which the distal end of the outer tube is spaced from the capture element and the at least one magnet.