摘要:
The present invention provides a valved stent that can provide a valve function without blocking a branch blood vessel, and also can provide a valve function with minimum covering of blood vessel tissue in a stent indwelling section. Specifically, a cylindrical stent body 4 is provided. A leaflet 5 that can open/close a blood vessel 2 in a blood flow direction is provided. The leaflet 5 is composed of connective tissue and protrudes radially inward from the stent body 4. An inside and an outside of the stent body 4 radially communicate with each other. The stent does not block a branch blood vessel 8. An area of the blood vessel covered with the stent is reduced.
摘要:
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.
摘要:
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.
摘要:
A valve-regulated lead acid battery comprises an element including a positive electrode plate which retains a positive active material, a negative electrode plate which retains a negative active material, and a separator. An average pore diameter of the negative active material measured by a bubble point method is 0.2 μm or more and 0.35 μm or less. An average pore diameter of the separator measured by the bubble point method is 10 to 40 times as large as the average pore diameter of the negative active material.
摘要:
A lead-acid battery comprising a container having at least one cell chamber and a lid body for covering a top opening of the container. The lid body has on a top surface a recessed portion having therein an annular portion protruding upward and having, in an area of a bottom wall inside the protruding portion, an exhaust hole for exhausting gas from the cell chamber, wherein a guide passage for guiding gas from the exhaust hole to the outside is formed by joining the protruding portion with a joining portion provided on the lid body cover. An annular groove formed between the protruding portion and the vertical wall is covered with an outer periphery of the lid body cover 5 and the guide passage is isolated from the groove.
摘要:
A vehicular lead storage battery according to the present invention includes a battery container provided with at least one cell chamber; and a cover plate 1 for covering an upper opening of the battery container. A guide path 8 for discharging gases within a cell chamber to the outside is formed in the cover plate 1. The guide path 8 includes a first guide portion 9B for horizontally guiding gases from the cell chamber; a second guide portion 9C connected to the first guide portion 9B to downwardly guide the gases from the first guide portion 9B; and a third guide portion 10A connected to the second guide portion 9C to horizontally guide the gases from the second guide portion 9C and discharge the gases from an exhaust vent 4K formed in the cover plate 1 to the outside. A corner portion 9K is formed by the first guide portion 9B and the second guide portion 9C, and a corner portion 10K is formed by the second guide portion 9C and the third guide portion 10A. The guide path 8 is formed so that the angle θ of a straight line L having internal contact with the two corner portions 9K and 10K from a horizontal line is greater than the maximum angle of inclination at which the inclined angle of a vehicle is maximum during driving on a sloping ground.
摘要:
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.
摘要:
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.
摘要翻译:片状隔膜的电解液滴落速度为100mm /小时以下,其中,图1所示的稀硫酸的浇注驱除力曲线上的排斥力值。 1如下:-if点S = P kg / dm2,-point B> = 0.55P kg / dm2-point C> = 0.40P kg / dm2 - 阀调节铅酸电池采用隔膜。
摘要:
A storage battery includes a terminal portion for storage batteries having a plurality of bolt insertion holes bored in one or a plurality of directions, a nut insertion opening through which a nut is inserted, a hollow in communication with the bolt insertion holes and the nut insertion opening and the nut having at least one screw hole threaded in a direction coincident with at least one or the plurality of directions. A fixation portion is formed to fix the nut by deforming the terminal portion with the nut being inserted through the nut insertion opening into the hollow and the at least one screw hole of the nut being in communication respectively with the at least one of the plurality of bolt insertion holes.
摘要:
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).