Patent attributes
A device includes: a first member comprising a first-member-side power transmission part; and a second member comprising a second-member-side power transmission part configured to be attachable to and detachable from the first member, the second member being a part of a medicinal-liquid administering device. The first-member-side power transmission part and the second-member-side power transmission part are configured to be engaged with each other for administering a medicinal liquid into a living body. The second member is configured to open a housing covering the first-member-side power transmission part to engage the second-member-side power transmission part with the first-member-side power transmission part at a time of attaching the first member to the second member.
