The invention discloses an implantation needle mechanism, and relates to the technical field of
medical instruments, the implantation needle mechanism comprises an annular support arranged on an infusion device, a needle seat is inserted in the annular support, an infusion needle is arranged on the needle seat, a clamping structure is arranged between the needle seat and the annular support, and a reset
assembly is arranged in the annular support. The invention further discloses an application type
medicine infusion device which comprises the implantation needle mechanism, a pump body bottom plate and a pump body upper shell arranged on the pump body bottom plate in a buckled mode, a
medicine storage bin is arranged between the pump body bottom plate and the pump body upper shell, a mounting groove is formed in the pump body upper shell, and an annular support is fixedly arranged in the mounting groove. And the inside of the
medicine storage bin is communicated with the infusion needle through a needle tube. The implantation needle mechanism and the pump body are integrally arranged, so that the overall size of the medicine infusion device is effectively reduced, and the overall carrying convenience of the device is improved. The invention further discloses a control method of the application type medicine infusion device. The control method is applied to implementation of the application type medicine infusion device.