Abstract: The present invention provides a vector which can make nucleic acids to be an aggregate and locate a vector containing a cationic polymer to surround the aggregate so as to protect the nucleic acids from the enzyme. The vector comprises a polymer having branched chain(s). Preferably, 3, 4, or 6 branched chains are bonded to benzene ring. It is preferable that the number of the branched chains is higher. As the branched chain(s), a vinyl-series acrylic polymer is preferable. The vector is synthesized by reacting a dithiocarbamate compound with an acrylamide monomer for the branched chain(s).

Abstract: An object of the invention is to provide a terminal section for storage battery that allows external leading wires to be simultaneously attached thereto at two or more locations, a nut for terminal of the terminal section for storage battery, a lid for storage battery with the terminal section for storage battery, and a storage battery. There is provided a terminal section for storage battery 8 which is made up of a terminal 4 having a cavity portion into which a nut is inserted, a bushing 6, and a conductive portion 7 joining both, wherein the terminal 4 has a rectangular parallelepiped shape, and through-holes 4K1, 4K2 of the terminal 4 are formed at least at two locations of a rectangular upper surface plate portion and a rectangular front surface plate portion, and at positions where screw holes of the nut communicating with the through-holes 4K1, 4K2 of the terminal 4 do not intersect with each other, when the nut is inserted into the cavity portion of the terminal 4.

Abstract: An object of the invention is to provide a lid for storage battery, an injection molding method of the lid, a storage battery with the lid, and a terminal section for storage battery, which can save trouble of inserting a nut into a cavity portion of a terminal, and can prevent falling of the nut at the time of connection of an external leading wire. In a lid for storage battery in which a terminal section for storage battery 8 made up of a terminal 4 having a cavity portion, a bushing 6, and a conductive portion 7 joining both is insert-molded in a lid made of synthetic resin, and a storage battery with the lid for storage battery, an anchor portion 4T is projected at a location excluding at least a central portion of a bottom portion 4F of the terminal 4, and a nut is inserted into the cavity portion of the terminal to be fixed.

Abstract: The present invention provides a base material which can be formed into valved lumen shape tissue having an ampulla and a leaflet consisting of body tissue. Specifically, the base material includes a first column 5 that forms an upstream tubular section 4 of a blood vessel 3, a second column 7 that forms a downstream tubular section 6 of the blood vessel 3, a plurality of bulges 10 for forming an ampulla 8 and a leaflet 9 of the blood vessel 3, and engagement means 11 that causes the bulge 10 to engage the first column 5 and/or the second column 7. The engagement means 11 includes recesses 15a and 15b in axial end surfaces of one or both of the first column 5 and the second column 7, and an engagement section 18 that overhangs from a bulge body 17 and engages the recesses. An outer peripheral surface of the body 17 of the bulge 10 is an ampulla forming surface 20, and a gap provided between the bulge body 17 and the first column 5 and/or the second column 7 is a leaflet forming section 22.

Abstract: There is provided a lead-acid battery in which the joint state between a lid body and a lid body cover can be checked based on both the joint state between a protruding portion in the periphery of a second exhaust hole and a joining portion of the lid body cover, and the joint state between a protruding portion of the lid body and a joining portion of the lid body cover.

Abstract: There is provided a storage battery, including: a container having at least one cell chamber; a lid body (2) made of synthetic resin for covering a top opening of the container, the lid body having on a top surface a recessed portion that is recessed downward, the lid body having positive and negative electrode terminals disposed close to one side of the lid body and respectively at both end portions of said one side in a longitudinal direction, wherein the positive and negative electrode terminals (4) respectively have lower portions embedded in the lid body and upper portions projecting from the lid body; and an auxiliary lid (9) for closing the recessed portion.

Abstract: There is provided storage battery that is capable of enabling an easy and speedy fabrication work as well as preventing a terminal thereof from fading or decaying for a long time. A storage battery includes: a lid made of a synthetic resin for closing a container and having cutout portions or recesses; terminals disposed respectively in the cutout portions or the recesses; bushings each having a tubular shape located inside the lid; electrode poles extending from the container for taking out power, the electrode poles respectively inserted into the bushings and welded thereto; conductive portions each for electrically connecting an upper side of the bushing and a lower side of the terminal disposed in parallel with the bushing in a horizontal direction in each of the cutout portions or the recesses; and an auxiliary lid for covering the bushing disposed inside the lid from above.

Abstract: The present invention provides a vector which can make nucleic acids to be an aggregate and locate a vector containing a cationic polymer to surround the aggregate so as to protect the nucleic acids from the enzyme. The vector comprises a polymer having branched chain(s). Preferably, 3, 4, or 6 branched chains are bonded to benzene ring. It is preferable that the number of the branched chains is higher. As the branched chain(s), a vinyl-series acrylic polymer is preferable. The vector is synthesized by reacting a dithiocarbamate compound with an acrylamide monomer for the branched chain(s).

Abstract: A stent comprising a tubular stent matrix of which diameter is extendable and a flexible polymer layer covering the stent matrix. The polymer layer is closely attached to and covers the entire surface of the stent matrix. Since the flexible polymer layer closely covers the entire surface of the stent matrix not only the outer periphery of the stent matrix, the stent has no problem of causing allergic to metal, stimulus of tissues due to metal, and rust development. Since the inner periphery of the stent is a flat and smooth surface covered by the polymer layer without convexes and concaves, the formation of thrombus can be inhibited well. There is no problem of drift between the polymer layer and the stent matrix, thereby maintaining the positional relationship between the stent matrix and the polymer layer before and after the expansion of the stent.

Abstract: The invention provides a porous scaffold for tissue engineering which allows easy cell engraftment and cell culture and thus enables stable organization and an artificial blood vessel which exhibits high patency rate even if the inner diameter is small. The scaffold for tissue engineering is made of thermoplastic resin which forms a porous three-dimensional network structure having communication property, wherein the porous three-dimensional network structure has an average pore diameter of from 100 to 650 ?m and an apparent density of from 0.01 to 0.5 g/cm3. The artificial blood vessel is composed of this scaffold.

Abstract: In order to provide an adhesive to adhere to the tissue of organisms a buffered solution containing a protein macromer having a vinylated protein, a polysaccharide macromer having a vinylated polysaccharide, or the both by mixture, along with a photo-reactive compound which generates radicals by irradiation is prepared. The solution is cured into a gel state by irradiation, adheres to and is fixed on the tissue surface.

Abstract: An anti-thrombogenic substance is immobilized on a base of a medical device to impart anti-thrombogenic properties to the medical device. The method comprises the steps of applying a photo-reactive azide derivative macromolecular material to a base to form a bonding layer, coating the bonding layer with a macromolecular layer composed of a water-soluble photo-crosslinking macromolecular material containing the anti-thrombogenic substance, and irradiating the base with ultraviolet light with the bonding layer and the macromolecular layer formed thereon to develop inter-molecular covalent bonding in the bonding layer. The macromolecular layer containing the anti-thrombogenic substance is thus fixed onto the base. Concurrently, the anti-thrombogenic substance is immobilized in the macromolecular layer which is crosslinked. The azide derivative can be poly-m-azidostyrene, copolymers, of poly-m-aziodstyrene with styrene and copolymers of poly-m-azidostyrene with methyl methacrylate.

Abstract: A sheet-like separator has an electrolyte dripping speed of 100 mm/hr or less, wherein the values of repellent force on the pouring repellent force curve of pouring of dilute sulfuric acid shown in FIG. 1 are the following:______________________________________ if point S = P kg/dm.sup.2, point B .gtoreq. 0.55P kg/dm.sup.2 point C .gtoreq. 0.40P kg/dm.sup.2 ______________________________________A valve regulated lead acid battery employs the separator.

Abstract: A separator in which a flowing rate of an electrolyte is less than 100 mm/hr and a sealed lead acid battery using the separator.

Abstract: A separator substantially comprising only alkali-containing glass fibers with an average fiber diameter of less than 2 .mu.m, and having an electrolyte dripping speed of lower than 80 mm/hr and a content of sulfer S at the surface of the glass fibers of less than 0.02% by weight, as well as a sealed lead acid battery using such a separator.