An endoscopic instrument (1, 134), for inserting into a body of a patient, has through a tubular the shaft (3, 47, 137) and at least two electrical, mechanical and/or optical line (11, 13, 15, 57, 59, 65, 67, 123, 181) extending through the shaft (3, 47, 137): a fluid channel (7, 53) which directly surrounds the at least two line (11 ,13, 15, 57, 59, 65, 67, 123, 181) which run through the shaft (3, 47, 137) is formed in the shaft (3, 47, 137).

An endoscopic instrument (1, 134) for inserting into a body of a patient includes a tubular shank (3, 47, 137) and at least two electrical, mechanical and/or optical leads (11, 13, 15, 19, 57, 59, 65, 67, 123, 181) which run through the shank (3, 47, 137). A fluid channel (7, 53) is formed in the shank (3, 47, 137). The instrument includes a sealing device (89) which forms a proximal end of the fluid channel and comprises feed-throughs (93, 97, 99, 101, 103) for the leads (11, 13, 15, 19, 57, 59, 65, 67, 123, 181).

An endoscopic instrument (1, 134), for inserting into a body of a patient, includes a tubular shank (3, 47, 137) which is coupled or can be coupled to a handling device (5, 135) and is with a working channel (15). A shank tool can be led through the working channel (15). The working channel (15) includes a proximal working channel opening (153) for inserting the shank tool and a fluid inlet (148) which is separate from the proximal working channel opening.

A uterine fibroid tissue removal device includes an inner tube disposed within an outer tube and configured to be translated and rotated relative to the outer tube, and a separately formed unitary distal tip member attached to a distal end of the inner tube, such that the distal tip member translates and rotates relative to the outer tube along with the inner tube, wherein a distal facing open cutting end of the distal tip member in fluid communication with an axial lumen of the distal tip member translates across a tissue resection window in a sidewall of the outer tube so as to sever tissue extending therethrough, the distal tip member axial lumen being in fluid communication with an axial lumen of the inner tube, wherein an outer diameter of the distal tip member is greater than an outer diameter of the inner tube.

A medical device capable of adjusting, while a rotating expandable portion breaks an object, a breaking force of the expandable portion. The medical device for breaking a thrombus in a blood vessel includes a shaft portion, an expandable portion that is provided to the shaft portion, a fixing portion that fixes the expandable portion and the shaft portion, a slide portion that is fixed to the expandable portion and is slidable with the shaft portion, and an outer tube that houses therein the shaft portion, in which the slide portion is movable by being indirectly pressed by the outer tube, and the slide portion is relatively rotatable relative to the outer tube.

Provided is a medical device capable of easily changing a position of the device inside a biological lumen and effectively removing a cut object. The medical device for removing the object in the biological lumen has a drive shaft, a cutting portion, a first housing that accommodates the drive shaft to be rotatable, a second housing that is rotatable with respect to the first housing, and a support portion that supports the first housing and the second housing. The second housing and the support portion relatively move along an axis to restrict relative rotation of the first housing and the second housing. The support portion supports the second housing to be rotatable around the axis, and restricts a relative movement and a relative inclination of the second housing and the support portion in a direction intersecting with the axis.

A medical device and can remove an object inside a biological lumen while allowing a positional change of the device inside the biological lumen. The medical device includes a drive shaft, an outer tube accommodating the drive shaft, a cutting portion fixed to a distal portion of the drive shaft, and a hub unit housing proximal portions of the drive shaft and the outer tube. The hub unit has an operation unit fixed to the outer surface of the outer tube to rotate the outer tube, a first support portion rotatably supporting the operation unit, a first housing having an aspiration port for discharging fluid to outside, and causing communication of an aspiration lumen of the outer tube with the aspiration port, and a first seal between the first housing and the outer tube. The first support portion and the first seal are disposed in parallel along an axial direction.

A foreign object removal device is disclosed, which includes a protective sheath, and a device main body, which is disposed in a lumen of the protective sheath, can protrude from a distal end opening of the protective sheath communicating with the lumen and is rotatable relative to the protective sheath. The device main body includes, at a distal end portion protruding from the distal end opening, a screw which rotates integrally with the device main body and in which a flat plate is twisted, and side edges of the flat plate are formed in a spiral shape.

The invention discloses a leading-in device of a flexible ureteroscope and a using method thereof and a uretero-pyeloscope system. The leading-in device of the flexible ureteroscope includes a leading-in sheath component, the leading-in sheath component includes a leading-in sheath with elasticity, and the leading-in sheath is a strip-type tube body matched with the flexible ureteroscope. While the flexible ureteroscope is inserted and connected in the leading-in sheath, an outer end part of the flexible ureteroscope is aligned with an outer end part of the leading-in sheath or slightly protruded out of the outer end part of the leading-in sheath. The invention is capable of enabling the flexible ureteroscope to be accurately inserted into a renal pelvis, putting in place by one step, using conveniently, reducing injury of a patient, and reducing the cost of an operation.

Provided is a medical device capable of easily changing a position of the device inside a biological lumen and effectively removing a cut object. The medical device for removing the object in the biological lumen has a drive shaft, a cutting portion, a first housing that accommodates the drive shaft to be rotatable, a second housing that is rotatable with respect to the first housing, and a support portion that supports the first housing and the second housing. The second housing and the support portion relatively move along an axis to restrict relative rotation of the first housing and the second housing. The support portion supports the second housing to be rotatable around the axis, and restricts a relative movement and a relative inclination of the second housing and the support portion in a direction intersecting with the axis.