Abstract: A sub-cavity with an integral steam heater is provided in a ceiling portion of a heating chamber. A gas in the heating chamber is sucked into a blower through a gas suction opening and sent into an external circulation path. The gas passing through the external circulation path sucks steam from a steam producing device by using steam suction ejector. The gas that took the steam in enters into the sub-cavity, as the gas return opening, from the external circulation path. The steam contained in the gas is heated by the steam heater in the sub-cavity to become an overheated state, spouted out downward from spouting holes in the bottom face of the sub-cavity, and collides with an object to be heated. The external circulation path is constructed from a pipe with a circular cross-section.

Abstract: A steam cooker, wherein a sub cavity incorporating a steam heating heater is formed at the center of the ceiling part of a heating chamber. Steam in the heating chamber is sucked into an air blow device through a suction port and force-fed into the sub cavity through an external circulating passage. Gas passed through the external circulation passage sucks steam from a steam generator midway in the external circulation passage and enters from the external circulation passage into the sub cavity. The steam heated by the steam heating heater until it is brought into an superheated state is jetted downward from a plurality of upper gas jetting holes formed in the bottom panel of the sub cavity by such a force that makes the steam reach the bottom of the heating chamber so that the steam can be collided with a heated matter. The steam is raised on the outside of downward air flow and the convection of steam occurs in the heating chamber.

Abstract: A cooker has an external circulation path outside a heating chamber in which foods are to be placed. A blower sucks in gas inside the heating chamber, and forms, in the external circulation path, a gas flow that makes the sucked gas return to the heating chamber. Downstream of the blower, the external circulation path is provided with an exhaust port, in which a damper is provided. The damper closes the exhaust port during cooking, and opens the exhaust port when a door of the heating chamber is opened. After the damper is changed to a position of opening the exhaust port, the blower continues to operate until a predetermined condition is satisfied.

Abstract: A steam cooker, wherein a sub cavity incorporating a steam heating heater is formed at the center of the ceiling part of a heating chamber. Steam in the heating chamber is sucked into an air blow device through a suction port and force-fed into the sub cavity through an external circulating passage. Gas passed through the external circulation passage sucks steam from a steam generator midway in the external circulation passage and enters from the external circulation passage into the sub cavity. The steam heated by the steam heating heater until it is brought into an superheated state is jetted downward from a plurality of upper gas jetting holes formed in the bottom panel of the sub cavity by such a force that makes the steam reach the bottom of the heating chamber so that the steam can be collided with a heated matter. The steam is raised on the outside of downward air flow and the convection of steam occurs in the heating chamber.

Abstract: A sub-cavity with an integral steam heater is provided in a ceiling portion of a heating chamber. A gas in the heating chamber is sucked into a blower through a gas suction opening and sent into an external circulation path. The gas passing through the external circulation path sucks steam from a steam producing device by using steam suction ejector. The gas that took the steam in enters into the sub-cavity, as the gas return opening, from the external circulation path. The steam contained in the gas is heated by the steam heater in the sub-cavity to become an overheated state, spouted out downward from spouting holes in the bottom face of the sub-cavity, and collides with an object to be heated. The external circulation path is constructed from a pipe with a circular cross-section.

Abstract: A cooking oven, wherein air in a cooking chamber is sucked into a blower on the outside of the cooking chamber and fed to an upper duct and a lateral duct, air current led into the upper duct is heated by an upper heater and re-circulated from an upper blowing port to the cooking chamber, a catalyst block heated by a catalyst heating heater is disposed in the upper duct to decompose lamp black and smell substances contained in the air current, catalyst paint is applied onto the inner wall surface of the upper duct to reinforce a performance for decomposing the lamp black and smell substances, both the lateral duct and the upper duct are formed in the same structure, the distributions of heating volumes of the upper heater and the lateral heater in the cross sections of the upper duct and the lateral duct are set so that larger heating volumes are generated on larger air volume sides according to the air volume distributions in the cross sections of the ducts, and the catalyst block is also disposed in the cro

Abstract: A device for guiding a puncture needle used in CT (computerized tomography) comprises a guide section having an insertion hole for an introducer and the puncture needle, a pole brace having a leg and standing erect in parallel to the guide section, and a beam for connecting the guide section with the pole brace wherein the pole brace or the leg has a function for changing its length along the axial direction thereof, the beam for connecting both the guide section and the pole brace with each other is prepared from a moldable plastic material which allows X-rays to pass through the same in case of radiation into an integrally molded article.

Abstract: A device for guiding a puncture needle used in CT (computerized tomography) comprises a guide section having an insertion hole for an introducer and the puncture needle, a pole brace having a leg and standing erect in parallel to the guide section, and a beam for connecting the guide section with the pole brace wherein the pole brace or the leg has a function for changing its length along the axial direction thereof, the beam for connecting both the guide section and the pole brace with each other is prepared from a moldable plastic material which allows X-rays to pass through the same in case of radiation into an integrally molded article.

Abstract: An embolizing system includes a catheter having a lumen, an elongate member, insertable within the lumen of the catheter, and an occlusion particle. The occlusion particle has a receiving passageway therein for receiving the elongate member so the elongate member guides movement of the occlusion particle.

Abstract: An embolizing system includes a catheter, having a lumen, an elongate member, insertable within the lumen of the catheter, and an occlusion particle. The occlusion particle has a receiving passageway therein for receiving the elongate member so the elongate member guides movement of the occlusion particle.

Abstract: A thrombosis filter that has an improved filtering function and can be securely anchored at a desired location and be removed through an endovenous route even after the growth of neointima. The thrombosis filter of this invention includes a first and a second filtering and holding unit, each unit including a coupling mechanism at its outer extremity in the form of a hook, and a plurality of resilient struts that are biased into contact therewith with the vein wall. The units are interconnected by a core shaft which consists of a compression member and a pair of core wires.

Abstract: A thrombosis filter that has an improved filtering function and can be securely anchored at a desired location and be removed through an endovenous route even after the growth of neointima. The thrombosis filter of this invention includes a first and a second filtering and holding unit, each unit including a coupling mechanism at its outer extremity in the form of a hook, and a plurality of resilient struts which include vein wall junction portions that lie parallel to the vein wall and are biased into contact therewith. The preferred embodiment includes picks that impale the vein wall to a limited depth. The units are interconnected by a core shaft which consists of a compression member and a pair of core wires.