A disclosed medical device includes a first data transmission path that includes a first insulation device connecting a secondary circuit and a patient circuit such that serial data output from the secondary circuit is transmitted to the patient circuit while maintaining electrical insulation between the secondary circuit and the patient circuit; a second data transmission path that includes a second insulation device connecting the secondary circuit and the patient circuit such that the serial data transmitted from the secondary circuit to the patient circuit via the first data transmission path is fed back to the secondary circuit while maintaining electrical insulation between the secondary circuit and the patient circuit; and a comparison determination unit that is provided in the secondary circuit and compares the serial data output from the secondary circuit with the serial data fed back to the secondary circuit.

Surgical instruments with rotation stop devices and related methods are disclosed herein, e.g., for providing limited rotation between first and second components of the surgical instrument in a range greater than 360 degrees. Exemplary rotation stop devices can have a low profile and can include various features to facilitate packaging of the device within a larger instrument.

In some embodiments, a visualization device for a robotic surgery apparatus can include a housing configured to be removably attached to a mounting interface of the apparatus and be positioned adjacent an insertion device of the apparatus. The housing can include first and second openings positioned on an exterior of the housing. The housing can include a substantially flexible camera tube with a first end attached to the housing and a second end including at least one camera. The second end can be inserted through the first opening in the housing, pass through interior of the housing, and exit the housing through the second opening in the housing. The second end can extend away from the housing toward a region of interest outside the housing or retract away from the region of interest and back toward the housing. The camera tube can form a loop around a portion of the housing.

The present invention provides an imaging probe for imaging mammalian tissues and structures using high resolution imaging, including high frequency ultrasound and optical coherence tomography. The imaging probes structures using high resolution imaging use combined high frequency ultrasound (IVUS) and optical imaging methods such as optical coherence tomography (OCT) and to accurate co-registering of images obtained from ultrasound image signals and optical image signals during scanning a region of interest.

An endoscope image-capturing device includes: a first case inside of which is sealed; an image sensor arranged inside the first case; an electro-optic conversion element arranged outside the first case and configured to convert an image signal output from the image sensor into an optical signal; and a sealing member sealing the electro-optic conversion element.

A sheath assembly is adapted for an ultrasonic probe and includes a plug portion and a sheath portion connected to each other. One end of the plug portion of the sheath assembly is used for detachably and fixedly connecting with a connecting butt joint portion of the ultrasonic probe, so that the plug portion and the connecting butt joint portion are detachable after the ultrasonic probe is used. An inside of the plug portion communicates with an inside of the sheath portion to receive a torque transmitting portion of the ultrasonic probe.

A magnetic coupling is provided having two rings that are arranged concentrically in relation to one another, which are each mounted to be rotatable in relation to one another. An arrangement of at least three magnetic dipoles is respectively arranged on both rings, the magnetic dipoles facilitating magnetic coupling of the rings and a transmission of torque from a driving ring to a driven ring of the two rings. The magnetic dipoles of the arrangements at the driven ring and/or at the driving ring is/are aligned such that two like magnetic poles, which adjoin one another on the respective other ring, are always followed by an unlike magnetic pole, and the magnetic poles adjoining one another at the respective other ring are arranged in a manner corresponding to one another such that the two rings are magnetically coupled in an equilibrium position.

An endoscope image-capturing device includes: a first case inside of which is sealed; an image sensor arranged inside the first case; an electro-optic conversion element arranged outside the first case and configured to convert an image signal output from the image sensor into an optical signal; and a sealing member sealing the electro-optic conversion element.

Provided in accordance with aspects of the present disclosure is a coupling device configured to receive first and second devices. The coupling device may define a first passageway having an inner surface with a first coefficient of friction and defining a first axis. The coupling device may define a second passageway having an inner surface with a second coefficient of friction and defining a second axis, wherein at least a portion of the second axis is at an angle relative to the first axis.

A loop antenna module used in a capsule-type endoscope comprises: a feed portion substrate including a pair of coupling pads provided on a surface; and a loop antenna body including a loop antenna substrate coupled to the feed portion substrate, a pair of coupling pads provided on a surface of the loop antenna substrate and capacitively coupled to a further pair of coupling pads provided in the feed portion substrate, and a conductive wire extended from the pair of coupling pads provided on the surface of the loop antenna substrate to have a spiral pattern, wherein the loop antenna substrate, the pair of coupling pads and the conductive wire provided in the loop antenna substrate are formed of a transparent material.