Abstract: This apparatus (1) comprises at least one intravascular device (10), (20) that is disposed in a blood vessel of an organism and that is equipped with at least one electrode (11), (12), (21), (22) for detecting or stimulating the activity of nerve tissue positioned outside the blood vessel nearby, the electrodes (11), (12), (21), (22) being provided on a wire member.

Abstract: [Object] Provided is a method of producing a nerve fascicle including efficiently extending axons of neural cells. [Solution] Neural cells are cultivated in the presence of feeder cells including at least one type of cells selected from the group consisting of vascular component cells, perivascular cells, and oligodendrocytes.

Abstract: The present disclosure relates to a neural cell population, a neural cell-containing preparation, and a method for producing the population and preparation. More particularly, the present invention relates to a neural cell population derived from intraoral mesenchymal cells, wherein a proportion of normal diploid cells is 80% or more, a preparation containing the neural cell population, and a method for producing the population and the preparation.

Abstract: [Object] Provided is a method of producing a nerve bundle including efficiently extending axons of neural cells. [Solution] Neural cells are cultivated in the presence of feeder cells including at least one type of cells selected from vascular component cells and perivascular cells.

Abstract: Proposed is a method for vascular embolization of the blood vessel of a patient by introducing an aqueous solution of a specific thermosensitive polymer, which is liquid at low temperatures but causes coagulation when heated up to the body temperature of the patient, into the blood vessel followed by in situ heating of the solution. The thermosensitive polymer found to be suitable for the purpose is a homopolymer or copolymer of an N-substituted (meth) acrylamide monomer having a specified intrinsic viscosity in tetrahydrofuran and gives an aqueous solution capable of exhibiting phase transition from a liquid to a coagulate at a transition temperature of 10.degree. to 37.degree..

Abstract: The invention involves a sealed lead-acid battery comprising a cell element having positive plates, negative plates and separators, and electrolyte retained within micropore of the cell element.The micropores of both the plates is substantially filled with the electrolyte, while the micropores of the separators are not completely filled with the electrolyte.The voids formed partially in the micropores of the separators permit transport of the oxygen gas from the positive plates to the negative plates.Such a sealed lead-acid battery has long service life, and excels in ability to O.sub.2 absorb gases and reproduce water during overcharging and to recover by charging after a long overdischarged-state storage.