Abstract: A top toy includes a first shaft side component and a trunk part. The trunk part includes a trunk body, a moving body being rotatably configured with respect to the trunk body, and a locking mechanism. The locking mechanism is configured to lock releasably the moving member at a first position. The first shaft side component is rotatably configured with respect to the trunk part between first and second rotation positions. The trunk part is rotatably configured with respect to the first shaft side component when an external force is applied to the trunk part. The first shaft side component includes is a first projecting part. When the first projecting part is in contact with the locking mechanism, the locking mechanism is configured to release the moving member from the first position. The first and second shaft side components are interchangeable.

Abstract: A top toy is used in a game table including a guide member having a guide surface on which first teeth are formed at an equal interval. The top toy includes a shaft part, a body being configured on the shaft, and a trunk part being configured on the shaft. The shaft includes second teeth that are engageable with the first teeth on an outer periphery thereof.

Abstract: A top toy includes a shaft part, a trunk part, and a top tip cover. The trunk part is detachably configured on the shaft part. The top tip cover is detachably configured on the shaft part at a longitudinal end. The shaft part includes a first engagement part being movably configured between a raised position and a lowered position in an axial direction and a second engagement part. The top tip includes a third engagement part being configured to be engaged by rotating in a first direction with the second engagement part to prevent the shaft part from separating from the trunk part in the axial direction. The top tip cover includes a fourth engagement part being configured to be engaged with the first engagement part to prevent the top tip cover from rotating in a second direction with respect to the shaft part.

Abstract: A top toy includes a first shaft side component and a trunk part. The trunk part includes a trunk body, a moving body being rotatably configured with respect to the trunk body, and a locking mechanism. The locking mechanism is configured to lock releasably the moving member at a first position. The first shaft side component is rotatably configured with respect to the trunk part between first and second rotation positions. The trunk part is rotatably configured with respect to the first shaft side component when an external force is applied to the trunk part. The first shaft side component includes is a first projecting part. When the first projecting part is in contact with the locking mechanism, the locking mechanism is configured to release the moving member from the first position. The first and second shaft side components are interchangeable.

Abstract: A top toy includes a body including a first coupling element, and a shaft part being detachably attached to the body and including a second coupling element and a projection. The first and second coupling elements abut each. The body and the shaft part are detachable when the body is rotated relative to the shaft part. The body includes a rotating blade being configured on an outer circumference part thereof to be rotated. The rotating blade includes a shaft extending parallel to the axial direction and is configure to advance and retreat with respect to the arc shaped slit. The rotating blade includes a sliding part at an inner edge which is formed in a bow shape. The rotating blade is configured to be rotated around the shaft by the sliding part being slidably in contact with the projection.

Abstract: A top toy includes a body and a shaft part being detachably attached to the body. The body includes a trunk main body, a first tip, and a second tip. The trunk main body includes an arc shaped hole with first and second ends. First and second insertion pieces of the first and second tips respectively are inserted in the arc shaped hole at the first and second ends respectively. The trunk main body includes a moving part being manually operated between first and second positions. In the second direction, a space, the resistance element, the first coupling member are aligned in order when the first tip is employed. In the first direction, the space, the second coupling member, and the resistance element are aligned in order when the second tip is employed. The body and the shaft part are to be detached at the space.

Abstract: Biocompatible nanoparticles 1 which entrap a bioactive substance and whose surface is positive-charge-modified are electrically adhered to a balloon portion 9 of a catheter main body 5 through a negatively charged resin layer 11, and thus a nanoparticle layer 12 is formed. After the catheter main body 5 is indwell in vivo, the nanoparticles 1 are gradually eluted from the nanoparticle layer 12 and are effectively delivered to cells.

Abstract: The present invention provides a medical device for placement into a lumen such as a stent and a catheter whose surface is uniformly and sufficiently coated with a drug, and a process thereof with easy way and with low cost. The medical device is coated with mixed particles of drug particles whose surface is modified with positive-charge and biocompatible nanoparticles. In the invention, a drug can be taken into a cell through the dissolution of the drug particle together with the biocompatible nanoparticle after a DES is placed in a biological body.

Abstract: Biocompatible nanoparticles 1 which entrap a bioactive substance and whose surface is positive-charge-modified are electrically adhered to a balloon portion 9 of a catheter main body 5 through a negatively charged resin layer 11, and thus a nanoparticle layer 12 is formed. After the catheter main body 5 is indwell in vivo, the nanoparticles 1 are gradually eluted from the nanoparticle layer 12 and are effectively delivered to cells.