A sheath for inserting a cannula of an endoscope into a cavity of a patient is described herein. The sheath comprises an introducer, a support channel and a pull-tab. The introducer has an open end being sized and shaped to accept a tip of the cannula and a tip end adapted to be deflected in an outward direction by the tip of the cannula passing into the introducer. The support channel is adapted to receive a shaft of the cannula and guide the tip of the cannula into the introducer; and the pull provides a finger hold for a user to grasp the sheath. In some aspects, the introducer includes a plurality of extending segments having a normally closed position defining a conical exterior shape of the introducer, with the plurality of tapered segments adapted to be separated by the tip of the cannula passing through the introducer.

A girth adjustable device for physical therapy such as the dilation and stretch of body orifices that can repeatedly, gradually increase a uniform and sustainable pressure over the entire lateral surface area and over the entire length of a body orifice at the same time, and gradually decrease the pressure uniformly from the entire lateral surface area and the entire length of a body orifice at the same time. The girth adjustable device comprises at least one controller, a housing, at least one threaded shaft, at least one module, a plurality of shaft member and at least one sheath. The part of the device inserted into a body orifice is the shaft. In a body orifice, the user via the controller rotates clockwise the threaded shaft to increase the girth of the shaft. Then, the user via the controller rotates counter-clockwise the threaded shaft to decrease the girth of the shaft.

An endoscopic stone-extraction device is provided comprising a support filament comprising an end portion, a sheath comprising a lumen, wherein the support filament is disposed in the lumen such that the sheath is slideable with respect to the support filament, and a handle comprising an actuator. Movement of the actuator in a first direction retracts the sheath and causes a shape to expand outside the lumen. Movement of the actuator in a second direction advances the sheath and causes the shape to at least partially collapse inside the lumen. Other embodiments are provided, and any of these embodiments can be used alone or in combination.

An adaptor may include a shell and a plunger positioned at a first end of the shell and moveable between an undepressed state and a depressed state. The adaptor may further include a ramp extending from a second end of the shell and a carrier coupled to the ramp. In the undepressed state, the carrier may be located at a first position along the ramp, and wherein, in the depressed state, the carrier may be located at a second position along the ramp, wherein the second position may be closer to the second end of the shell than the first position.

An endoscopic treatment instrument includes a sheath; a basket section formed by elastic wires; a manipulation wire connected to the basket section; and a distal end cover attached to a distal end of the sheath. The distal end cover has: a first opening; a second opening; an inner peripheral surface disposed between the first and second opening; and a curved surface bent over the whole circumference in the circumference direction of the distal end cover. Each of the plurality of the elastic wires has: a proximal end portion, a distal end portion, and a maximum diameter section. A radius of curvature of the curved surface is smaller than a radius of curvature of each of the plurality of the elastic wires. A contact position of the elastic wires and the curved surface moves in accordance with a retraction of the elastic wires.

A medical system is provided comprising a medical device including a handle and a mechanism for moving a distal end of the medical device; an auxiliary medical device comprising a basket retrieval device including a basket sheath disposed over a basket wire and received into a working channel of the medical device; a knob assembly in communication with the basket retrieval device, the knob assembly rotatable so that the basket sheath, wire, or both move within the working channel; and a base removably connecting the auxiliary medical device to the handle wherein the handle and the base are configured to be simultaneously gripped with a hand, and wherein the mechanism is configured to be moved with a first finger to move the distal end of the medical device and the knob assembly is configured to be rotated with a second finger to move the basket sheath wire, or both.

Improved methods and devices for performing an endoscopic surgery are provided. Systems are taught for operatively treating gastrointestinal disorders endoscopically in a stable, yet dynamic operative environment, and in a minimally-invasive manner. Such systems include, for example, an endoscopic surgical suite. The surgical suite can have a reversibly-expandable retractor that expands to provide a stable, operative environment within a subject. The expansion can be asymmetric around a stabilizer subsystem to maximize space for a tool and an endoscope to each be maneuvered independently to visualize a target tissue and treat the target tissue from outside the patient in a minimally invasive manner.

Disclosed is speculum and related methods to comfortably dilate a woman's vaginal canal during a pelvic exam.

Aspects of a device are described. One aspect is a device comprising: a housing having a first portion engageable with a scope, and a second portion engageable with a handle of a retrieval device; a platform that is movable relative to the housing, and engageable with a slider of the retrieval device; and a link assembly that is coupled the housing and the platform, and operable to move the platform and slider relative to the housing and handle. Aspects of related devices and systems also are described.

Improved methods and devices for performing an endoscopic surgery are provided. Systems are taught for operatively treating gastrointestinal disorders endoscopically in a stable, yet dynamic operative environment, and in a minimally-invasive manner. Such systems include, for example, an endoscopic surgical suite. The surgical suite can have a reversibly-expandable retractor that expands to provide a stable, operative environment within a subject. The expansion can be asymmetric around a stabilizer subsystem to maximize space for a tool and an endoscope to each be maneuvered independently to visualize a target tissue and treat the target tissue from outside the patient in a minimally invasive manner.