Abstract: An operation device for performing a procedure on a lumen in a body comprises: a single protection tube formed of a flexible material; first and second tube members provided in the protection tube; and first and second clamp-type effectors respectively provided at respective front ends of the first and second tube members, wherein operational wires, respectively, are inserted into the first and second tube members to connect the clamp-type effectors positioned at the front ends thereof with first and second manipulation handles positioned at rear ends thereof, wherein the first and second clamp-type effectors are manipulated by moving the operational wires using the first and second manipulation handles in front or rear directions, and wherein electric lines are connected with the first and second clamp-type effectors to electrothermally treat a lesion portion in the body.

Abstract: A stent comprises at least two or more separated bodies formed by separating in a longitudinal direction a hollow cylindrical body formed by weaving superelastic shape memory alloy wires, the separated bodies connected with each other through an insulator formed of a flexible material, wherein the separated bodies respectively include power connection lines formed by extending the wires from rear sides thereof, and wherein when an electricity generator is connected to the power connection lines of the separated bodies, an electric current flows between the separated bodies to generate electric heat by which the lesion tissue is cauterized.

Abstract: A stent may be inserted and placed in a lesion portion that is being stenosed or has been stenosed in a blood vessel or a lumen in the body to expand the lesion portion that is being stenosed or has been stenosed. Further, the stent and the artificial blood vessel layers are integrally formed with each other without floating between the stent and the artificial blood vessel layers. Accordingly, foods or other contents travelling through the pathway of a lumen in the body or blood in the vessel may be prevented from contacting the lesion portion, and the progress of the stenosis of the lesion portion may be prevented that may occur as the lesion portion grows toward the inside of the hollow cylindrical body of the stent.

Abstract: An operation device for performing a procedure on a lumen in a body comprises: a single protection tube formed of a flexible material; first and second tube members provided in the protection tube; and first and second clamp-type effectors respectively provided at respective front ends of the first and second tube members, wherein operational wires, respectively, are inserted into the first and second tube members to connect the clamp-type effectors positioned at the front ends thereof with first and second manipulation handles positioned at rear ends thereof, wherein the first and second clamp-type effectors are manipulated by moving the operational wires using the first and second manipulation handles in front or rear directions, and wherein electric lines are connected with the first and second clamp-type effectors to electrothermally treat a lesion portion in the body.

Abstract: Disclosed is a simulation test system and method for testing a vehicle electronic component capable of easily testing performance of the electronic component anytime regardless of location without repeating the same driving test.

Abstract: Disclosed is a simulation test system and method for testing a vehicle electronic component capable of easily testing performance of the electronic component anytime regardless of location without repeating the same driving test.

Abstract: A method for diagnosing an error of a vehicle electronic component capable of being performed without an actual driving test by building up a database of unusual waveform data that generates an erroneous operation of a vehicle electronic component is disclosed. The unusual waveform data are obtained through a process simultaneously collecting input and output waveforms of a problematic component in operation in real time in a state where the problematic component is electrically connected to a vehicle; a process analyzing the output waveforms to obtain information on a point in time of generation of an unusual output waveform that causes an erroneous operation of the problematic component; and a process extracting input waveforms during a predetermined time before and after the point of time of generation of the unusual output waveform using the information on the point in time.