An enhanced flexible robotic endoscopy apparatus includes a main body and flexible elongate shaft. The main body comprises a proximal end, a distal end and a housing that extends to the proximal end and the housing comprises a plurality of surfaces and a plurality of insertion inlets which reside on at least one of the surface of the housing at the proximal end of the main body, through which a plurality of channels for endoscopy are accessible. Each of the insertion inlets has insertion axis corresponding thereto, along which flexible elongate assemblies are insertable, with the insertion axes of the insertion inlets being parallel to the central axis of the flexible elongate shaft at the proximal end of the flexible elongate shaft.

The present invention relates to a multidirectional turning endoscope, which includes an insertion portion (2), an endoscope handle (4) and a bending driving portion (3); wherein: the bending driving portion includes a left-right driving rod, an up-down driving rod, a rotation shaft, a left turning wheel (17), a right turning wheel (18) and a spring (19); the rotation shaft includes a left half shaft (15) and a right half shaft (16); the external surface of the left half shaft and the external surface of the right half shaft respectively have a left outer conical face and a right outer conical face, a left conical cylinder and a right conical cylinder (20) are respectively sleeved to the left outer conical face and a right outer conical face; a spring (19) is located at an axial direction of the left half shaft and the right half shaft.

The present invention relates to a multidirectional turning endoscope, which includes an insertion portion (2), an endoscope handle (4) and a bending driving portion (3); wherein: the bending driving portion includes a left-right driving rod, an up-down driving rod, a rotation shaft, a left turning wheel (17), a right turning wheel (18) and a spring (19); the rotation shaft includes a left half shaft (15) and a right half shaft (16); the external surface of the left half shaft and the external surface of the right half shaft respectively have a left outer conical face and a right outer conical face, a left conical cylinder and a right conical cylinder (20) are respectively sleeved to the left outer conical face and a right outer conical face; a spring (19) is located at an axial direction of the left half shaft and the right half shaft.

[Problem] To provide a guidewire that has good operability and that can perform procedures efficiently. [Solution to Problem] A guidewire is for guiding insertion of a medical appliance into a subject. The guidewire includes an inserting portion and an observation optical system. The inserting portion has a first part and a second part that has higher flexibility than the first part, and the inserting portion is to be inserted into the subject. The observation optical system is provided to the inserting portion, and the observation optical system is provided for observing inside the subject.

Aspects of the present invention relate to a method for locating an expandable implant for treating BPH within the prostatic urethra of a patient. The delivery device comprises an inner tube and an outer sleeve moveable relative to the inner tube between a stored position and a deployed position. The outer sleeve surrounds the inner tube to define an annulus therebetween and the expandable implant is retained within the annulus when the outer sleeve is in the stored position.

In accordance with some configurations, systems and methods for guided removal from an in vivo subject are provided. In some configurations, a method for removing an object is provided. The method comprising, guiding a flexible tube through an in vivo subject's ureter, wherein the flexible tube comprises at least a first passageway and a second passageway. Positioning a distal end of the first passageway adjacent to the object. Infusing saline solution through the second passageway while suction is off. Removing the object through the first passageway with at least a portion of the saline solution.

The present invention discloses a steering device for use in a body lumen of a patient. The steering device comprises a flexible tube; a plurality of spaced-apart elements positioned along at least a portion of the tube; wherein the plurality of spaced-apart elements and the tube form a single integrated unit; and at least two steering wires having at least a portion passing through the spaced-apart elements and at least a portion passing within the tube. According to another broad aspect of the present invention, there is provided a steering device for use in a body lumen of a patient, comprising: a flexible tube; at least two steering wires having at least a portion passing within the flexible tube; at least two spring-like sleeves; each spring-like sleeve at least partially enclosing a steering wire respectively; wherein the spring-like sleeve has a variable pitch along its length; such that the flexible tube comprises at least two portions having different bending properties.

An endoscope includes an insertion portion; an operation portion; a balloon water injection channel; a first opening portion; a balloon pipe sleeve provided with a first end portion and a second end portion; a branch channel connection unit; a rotation restriction portion; and a connecting tube on which the branch channel connection unit is assembled.

An endoscope includes an insertion portion; an operation portion; a balloon water injection channel; a first opening portion; a balloon pipe sleeve provided with a first end portion and a second end portion; a branch channel connection unit; a rotation restriction portion; and a connecting tube on which the branch channel connection unit is assembled.

A method and a medical elongate body are configured to prevent stagnation or turbulence of blood flow in a recess of a rugged pattern formed in a blood vessel due to bulging of a blood vessel wall at a lesion part of the blood vessel. The method involves partitioning an inside of the blood vessel into upstream and downstream sides of the recess, and introducing gel into the recess to at least partially fill the recess. A blood vessel lumen forming method and medical elongate body to form such a lumen are other aspects of the disclosure and involve introducing gel into the recess to at least partially fill the recess with the gel, and drilling the gel to remove at least some of the gel to form a passage and secure blood flow in the blood vessel.