A direct vision cryosurgical and methods of use are described herein where the device may generally comprise an elongated rigid structure with a distal end, a proximal end, and a central lumen. The distal end may comprise a non-coring optically transparent needle tip with at least one lateral fenestration in communication with the central lumen. The distal end may also house at least one imaging device configured for distal imaging. A proximal end of the device may comprise a handle with a means for connecting the imaging device(s) to an imaging display(s), and a means for accessing bodily tissue in the vicinity of the distal end with a cryo-ablation probe through the central lumen and the lateral fenestration(s) for diagnostic or therapeutic purposes.

A direct vision cryosurgical and methods of use are described herein where the device may generally comprise an elongated rigid structure with a distal end, a proximal end, and a central lumen. The distal end may comprise a non-coring optically transparent needle tip with at least one lateral fenestration in communication with the central lumen. The distal end may also house at least one imaging device configured for distal imaging. A proximal end of the device may comprise a handle with a means for connecting the imaging device(s) to an imaging display(s), and a means for accessing bodily tissue in the vicinity of the distal end with a cryo-ablation probe through the central lumen and the lateral fenestration(s) for diagnostic or therapeutic purposes.

The disclosure relates to a distal endoscope head including a support for a vision system, the support being delimited on one side, by a proximal face and, on the opposite side, by a distal face into which the vision system opens out, the support being traversed by at least one hole of an operating channel opening out into the distal face by an ovoid section which decreases from the distal face of the support in the direction of the proximal face of the support.

The disclosure relates to a distal endoscope head including a support for a vision system, the support being delimited on one side, by a proximal face and, on the opposite side, by a distal face into which the vision system opens out, the support being traversed by at least one hole of an operating channel opening out into the distal face by an ovoid section which decreases from the distal face of the support in the direction of the proximal face of the support.

A support device for an endoscope comprises a tubular member configured for removable attachment to an outer surface of the endoscope near, or at, its distal end and a plurality of projecting elements extending outward from the outer surface of the tubular member and circumferentially spaced from each other. The device includes an optically transparent cover coupled to the tubular member and configured for covering the distal end of the endoscope when the tubular member is attached to the outer surface of the endoscope. The projecting elements provide support for the endoscope, improve visualization and center the scope as it passes through a body lumen, such as the colon. In addition, the cover seals the distal end of the endoscope to protect the scope and its components from debris, fluid, pathogens and other biomatter.

A medical device including a handle including an actuation device, a sheath extending from the handle and having a longitudinal axis, the sheath defining an imaging lumen extending from the handle to a distal end of the sheath, an imaging device at a distal end of the sheath, and a piezoelectric member connected to the imaging device, where movement of the piezoelectric member moves the imaging device in a first direction relative to the longitudinal axis.

A medical device including a handle including an actuation device, a sheath extending from the handle and having a longitudinal axis, the sheath defining an imaging lumen extending from the handle to a distal end of the sheath, an imaging device at a distal end of the sheath, and a piezoelectric member connected to the imaging device, where movement of the piezoelectric member moves the imaging device in a first direction relative to the longitudinal axis.

An intervertebral disc surgical system has at least one optical cannula configured with a working channel and an optical channel, wherein the working channel and the optical channel are positioned parallel to one another. The working channel is configured to receive the elongated tubular member of an electrosurgical instrument and the optical channel is configured to receive an optical scope. The optical cannula has an optical cannula operative end for entering an operative field of a patient.

An intervertebral disc surgical system has at least one optical cannula configured with a working channel and an optical channel, wherein the working channel and the optical channel are positioned parallel to one another. The working channel is configured to receive the elongated tubular member of an electrosurgical instrument and the optical channel is configured to receive an optical scope. The optical cannula has an optical cannula operative end for entering an operative field of a patient.

An ultrasonic endoscope includes: an ultrasonic transducer having an ultrasonic vibrator; a distal end portion body disposed continuously with a proximal end side of the ultrasonic transducer; an erecting base housing portion that is disposed in the distal end portion body and has an opening which opens toward one side in a direction perpendicular to the axial direction of the distal end portion body; a treatment tool lead-out port that communicates with the inside of the erecting base housing portion, an erecting base that is disposed in the inside of the erecting base housing portion and changes a lead out direction of a treatment tool led out from the treatment tool lead-out port; and a cleaning communication hole that is formed in a wall surface on a side opposite to a side where the opening of the erecting base housing portion is disposed and communicates with an outside.