Patch-type drug infusion device
A patch-type drug infusion device includes a control structure provided with multiple first fastening portions and first electrical contacts; and an infusion structure including a case, a power supply, a flexible circuit board, and an elastic conductor, and provided with multiple second electrical contacts and second fastening portions that cooperate with the first fastening portions. The first fastening portions and the second fastening portions are fastened, the first electrical contacts connect with the corresponding second electrical contacts, making the structure more compact and improving the space utilization rate inside the infusion structure.
1 . A patch-type drug infusion device, comprising:
a control structure provided with multiple first fastening portions and first electrical contacts exposed on a surface of the control structure; and
an infusion structure including a case, a power supply, a flexible circuit board, and an elastic conductor, wherein one end of the elastic conductor is electrically connected to an electrical connection end on the flexible circuit board while an other end of the elastic conductor is electrically connected to the power supply, the infusion structure is provided with multiple second electrical contacts exposed on a surface of the case and second fastening portions that cooperate with the first fastening portions, the first fastening portions and the second fastening portions are fastened, the first electrical contacts connect with the corresponding second electrical contacts,
wherein the case includes an outward extending portion where is configured for the control structure to be assembled, and a block is provided on the outward extending portion, when the control structure is assembled onto the outward extending portion along a first direction, the block is adjacent to the control structure to prevent the control structure from detaching the infusion structure along a second direction.
2 . The patch-type drug infusion device of claim 1 , wherein
the first fastening portions and the second fastening portions include hooks, blocks, holes, or slots that cooperate with each other.
3 . The patch-type drug infusion device of claim 1 , wherein
one of the first electrical contacts or one of the second electrical contacts is a rigid metal pin or an elastic conductive member.
4 . The patch-type drug infusion device of claim 3 , wherein
the elastic conductive member includes a conductive spring, a conductive leaf spring, a conductive rubber, or a conductive silica gel.
5 . The patch-type drug infusion device of claim 4 , wherein
one of the first electrical contacts is a rigid metal pin while one of the second electrical contacts is a conductive spring, a groove, within which a sealing element is provided, is disposed around an area where the second electrical contacts are disposed.
6 . The patch-type drug infusion device of claim 4 , wherein
the elastic conductor is the conductive leaf spring.
7 . The patch-type drug infusion device of claim 1 , wherein
the case includes an upper case and a lower case.
8 . The patch-type drug infusion device of claim 1 , wherein
the power supply includes a double-row battery pack.
9 . The patch-type drug infusion device of claim 1 , wherein
the power supply includes button batteries.
10 . The patch-type drug infusion device of claim 1 , wherein
an outer end of the outward extending portion is provided with a pressing portion.