Abstract: Provided is a plant operation support apparatus including a plant simulator, a predictor, and a predicted KPI deriver. The plant simulator simulates a state at a current time or a predetermined time of a plant based on information obtained from the plant, to output an estimated value at the current time or the predetermined time of process data in the plant. The predictor predicts a state at a predetermined future time of the plant based on the estimated value and outputs a predicted value of the process data in the plant. The predicted KPI deriver derives a predicted KPI which is an index for monitoring the state at the future time of a task to be monitored in plant operation based on the predicted value.

Abstract: A plant operation support device for simulating an operation of a plant based on information obtained from the plant, includes: an operation condition setting part that sets an operation condition of the plant and a timing for applying the operation condition; and a transient state prediction part that predicts a transient state of the plant from a specific time point to the future in a case in which the operation condition of the plant set by the operation condition setting part is applied at the timing.

Abstract: Provided is a plant operation support apparatus including a plant simulator, a predictor, and a predicted KPI deriver. The plant simulator simulates a state at a current time or a predetermined time of a plant based on information obtained from the plant, to output an estimated value at the current time or the predetermined time of process data in the plant. The predictor predicts a state at a predetermined future time of the plant based on the estimated value and outputs a predicted value of the process data in the plant. The predicted KPI deriver derives a predicted KPI which is an index for monitoring the state at the future time of a task to be monitored in plant operation based on the predicted value.

Abstract: A plant operation support device for simulating an operation of a plant based on information obtained from the plant, includes: an operation condition setting part that sets an operation condition of the plant and a timing for applying the operation condition; and a transient state prediction part that predicts a transient state of the plant from a specific time point to the future in a case in which the operation condition of the plant set by the operation condition setting part is applied at the timing.

Abstract: A stent graft indwelling device (1) comprising a dilator (10) and a sheath (30) in which the dilator (10) and a stent graft (60) are to be loaded, the stent graft indwelling device (1) having a wire (40) or a fixed chip (20) as means for adjusting the insertion angle and/or indwelling site of the stent graft (60) when the stent graft (60) is released from the sheath (30) in a diseased part by this indwelling device, so that the insertion angle and indwelling site can be finely adjusted in a blood vessel in a semi-expansion state where the stent graft is not completely expanded.

Abstract: A stent formed in a shape of a generally tubular body having a central axis. The stent has a spring function with which the tubular body is diameter-contractible toward the central axis, and the tubular body is expandable to an initial diameter after contraction. The stent maintains a configuration curved along a longitudinal direction of the stent when the stent is not inserted in a sheath. The stent is elongated in a form of a generally straight line along the longitudinal direction when the stent is inserted into the sheath. The stent, being housed in a sheath in the form of a generally straight line, is inserted into a diseased part together with the sheath, is released from the sheath, and radially expands, outwardly after release, to restore and maintain a configuration curved along the longitudinal direction of the stent.

Abstract: A stent graft indwelling device (1) comprising a dilator (10) and a sheath (30) in which the dilator (10) and a stent graft (60) are to be loaded, the stent graft indwelling device (1) having a wire (40) or a fixed chip (20) as means for adjusting the insertion angle and/or indwelling site of the stent graft (60) when the stent graft (60) is released from the sheath (30) in a diseased part by this indwelling device, so that the insertion angle and indwelling site can be finely adjusted in a blood vessel in a semi-expansion state where the stent graft is not completely expanded

Abstract: There is provided A temporary stent comprising a first contractible and expandable stent body having a loosely-interlocked knitted structure formed by twisting at least one filament W in a spiral fashion and being configured to be expanded to form a cylindrical shape as a normal state; a first contractible and expandable proximal end configured to be expanded to form a tapered shape as a normal state; a middle strut maintained in a contracted configuration; a second contractible and expandable proximal end configured to be expanded to form a tapered shape as a normal state; a second contractible and expandable stent body configured to be expanded to form a cylindrical shape as a normal state; a third contractible and expandable proximal end configured to be expanded to form a tapered shape as a normal state; and a strut, in serial order. The filament W is formed of, for example, a shape-memory material.

Abstract: A stent (1) formed in the shape of a generally tubular body which has a spring function with which the tubular body is diameter-contractible toward the central axis (C) of the tubular body and which is expandable to the initial diameter after contraction, the stent being loaded into a sheath and being to be delivered to a diseased part to be treated, wherein the stent (1) maintains a configuration curved along the longitudinal direction of the stent when not inserted in the sheath, and (B) when the stent (1) is inserted into the sheath, the stent (1) is contracted toward the central axis (C) of the stent (1) and is elongated in the form of a generally straight line along the longitudinal direction of the stent (1), whereby the stent (1) is loaded into the sheath in the form of a substantially straight line, and the stent can remarkably improve safety and conformity during delivery in the artery, and the like.

Abstract: A stent locating device that includes leading wires, a pushing rod for holding the leading wires, and a sheath for loading the pushing rod. The pushing rod includes inner and outer tubes. The inner tube is used as a guiding wire channel. An annular portion between the inner and outer tubes is used as a leading wire channel. The pushing rod may be a single tube having a hollow portion that is used as a guiding wire channel and a plurality of leading wire channels arranged in the body thereof at regular intervals circumferentially. The pushing rod may have a plurality of leading wires, crossing leading wires, or a combination of leading wires and auxiliary leading wires which are distributed at regular intervals circumferentially and are derived from the tip of a leading wire channel(s).

Abstract: An endoscope apparatus has a side view endoscope 10 for side viewing an object in a radial direction of a distal end constitutional portion 14 and a balloon catheter 40. With an insert portion 13 of a side view endoscope 10 inserted in an insert tube 41 of the balloon catheter 40, the balloon catheter 40 is inserted into a blood vessel B. The insert tube 41 is provided at its distal end with a transparent balloon 42. This balloon 42 encloses the distal end constitutional portion 14. By feeding air (fluid) to this balloon 42, the balloon 42 is expanded so as to be urged against an inside wall of the blood vessel B. This causes the blood to be discharged between the inside wall of the blood vessel B and the balloon 42, thus enabling to observe the inside wall of the blood vessel B through the side view endoscope 10.

Abstract: An endoscope apparatus has a side view endoscope 10 for side viewing an object in a radial direction of a distal end constitutional portion 14 and a balloon catheter 40. With an insert portion 13 of a side view endoscope 10 inserted in an insert tube 41 of the balloon catheter 40, the balloon catheter 40 is inserted into a blood vessel B. The insert tube 41 is provided at its distal end with a transparent balloon 42. This balloon 42 encloses the distal end constitutional portion 14. By feeding air (fluid) to this balloon 42, the balloon 42 is expanded so as to be urged against an inside wall of the blood vessel B. This causes the blood to be discharged between the inside wall of the blood vessel B and the balloon 42, thus enabling to observe the inside wall of the blood vessel B through the side view endoscope 10.

Abstract: An intravascular stent 11 has an elastic self-expandable cylindrical stent proper 12. The stent proper 12 is connected to metal support wires 18 that are long enough to reach outside of the body of a patient through a catheter 31. Manipulation of the support wires 18 pushes the stent proper 12 into a blood vessel from within the catheter, thereby allowing it to expand there, and then contracts and retracts the stent proper 12 into the catheter 31, repeatedly.