Abstract: A conical-projections-sheet packaging body includes a conical-projections sheet, a conical-projections forming sheet, and a sealing sheet. The conical-projections sheet includes a substrate and a plurality of conical projections formed on a surface of the substrate. The conical-projections forming sheet has a plurality of conical-recess parts, which is used to form the plurality of conical projections and wherein the plurality of conical projections is disposed. The conical-projections forming sheet protects the conical projections in a state wherein the plurality of conical projections is tightly adhered to the surface of the substrate. The sealing sheet, by being fixed to the conical-projections forming sheet, seals the conical-projections sheet between the conical-projections forming sheet and the sealing sheet.

Abstract: A catheter assembly includes a tubular insertion portion; a support portion that is connected to a proximal end side of the insertion portion and has therein a flow passage communicating with an inside of the insertion portion; a valve body that is disposed in the flow passage and includes: a blocking membrane configured to inhibit a flow of fluid, and an opening/closing part configured such that the blocking membrane is at least partially openable and closeable via the opening/closing part; and an insertion member which is arranged proximal of the blocking membrane and is insertable into the opening/closing part by moving in a distal direction. The opening/closing part is formed as a single slit penetrating the blocking membrane, the slit having a distal end opening and a proximal end opening, and a length of the distal end opening being smaller than a length of the proximal end opening.

Abstract: A catheter assembly includes a tubular insertion portion; a support portion that is connected to a proximal end side of the insertion portion and has therein a flow passage communicating with an inside of the insertion portion; a valve body that is disposed in the flow passage and includes: a blocking membrane configured to inhibit a flow of fluid, and an opening/closing part configured such that the blocking membrane is at least partially openable and closeable via the opening/closing part; and an insertion member which is arranged proximal of the blocking membrane and is insertable into the opening/closing part by moving in a distal direction. The opening/closing part is formed as a single slit penetrating the blocking membrane, the slit having a distal end opening and a proximal end opening, and a length of the distal end opening being smaller than a length of the proximal end opening.