摘要:
An endoscope system according to the present invention includes: an endoscope equipped with a long insertion portion; a medical instrument which includes a treating portion installed in a distal part and used to perform various treatments in a body cavity and a long sheath including a rigid portion with predetermined flexibility and a flexible portion more flexible than the rigid portion, the rigid portion and flexible portion being installed consecutively starting from a distal side, where the sheath is inserted in a channel of the insertion portion of the endoscope; an operation instruction apparatus used to give commands regarding operation of the medical instrument; a first medical instrument drive apparatus which operates the treating portion of the medical instrument; and a second medical instrument drive apparatus which moves the sheath forward and backward.
摘要:
According to the present invention, there is provided an endoscope system including: an endoscope having an elongated insertion portion; a medical instrument configured to be inserted in a channel of the insertion portion of the endoscope and to have an elongated flexible sheath; and an advancing and retracting apparatus configured to advance and retract the sheath of the medical instrument in the channel with two rollers, wherein the sheath of the medical instrument is configured to have an outer diameter larger than the distance between the roller surfaces of the two rollers, and to have a frictional resistance increasing unit for increasing frictional resistance between the respective roller surfaces and the outer peripheral surface of the sheath in contact with the respective roller surfaces in a state where the sheath is inserted between the two rollers.
摘要:
A treatment instrument operation unit is provided with a drive unit, an operation portion installation section and a command signal output section. The drive unit drives an operation portion for operating each treatment section of the respective treatment instruments. The operation portion is attached to the operation portion installation section provided to the drive unit. The command signal output section outputs an installation start signal to a controller for notifying that the installation of the treatment instrument has begun upon installation of the operation portion in the operation portion installation section. After outputting the installation start signal from the command signal output section to the controller, the drive unit drives the operation portion installation section to the position where the operation portion is allowed to be installed based on the control signal outputted form the controller.
摘要:
A tissue capturing device is formed by a substantially circular cylinder-shaped container, a filter member, and a lens member. The filter member is provided with a substantially circular plate-shaped partitioning portion, and a circular column portion that is formed substantially in the shape of a circular column and that is provided coaxially with a top surface of the partitioning portion. Recessed portions that have a sufficient size to enable them to capture biological tissue are formed in a circumferential wall portion of the circular column portion. Tissue capturing surfaces are formed in bottom surfaces of the recessed portions. A plurality of micro through holes that penetrate as far as a bottom surface of the partitioning portion are formed in the tissue capturing surfaces of the recessed portions. A lens member is also mounted on the container. The mounting position of the lens member is a position that faces the tissue capturing surfaces.
摘要:
A wire coloring apparatus including a roller is provided to prevent drag of a colorant, which is jetted on an electric wire and not dried yet, the guide roller is arranged at a downstream side of a coloring nozzle, which jets a colorant toward a highest point of an outer surface of the electric wire moving along a lengthwise direction thereof, in a moving direction of the electric wire. The guide roller is formed with a pair of tapered surfaces catching and supporting the electric wire and approaching to each other in accordance with nearing to a rotating axis. When a radius REW of the electric wire 3 is 1.2 mm, an angle θT formed by the pair of tapered surfaces is designed at least 60 degrees and not more than θX degrees.
摘要:
In order to enable detection of degradation of the heat dissipation from a semiconductor chip, even when the operating state of a semiconductor device cannot be predicted, a thermal resistance calculation circuit calculates the thermal resistance of the heat dissipation path from the semiconductor chip, based on the loss of a switching element calculated by a loss calculation circuit and the temperature of the semiconductor chip calculated by a temperature calculation portion, and when the voltage corresponding to the thermal resistance calculated by the thermal resistance calculation circuit exceeds a reference voltage, switching operation of the switching element is halted.