A bilateral-driven patch-type drug infusion device comprises: an infusion unit; a driving wheel drives the screw to move by rotation, pushing the piston forward; a driving unit includes at least two driving portions, the driving unit pivots around a pivot shaft, driving different driving portions in different direction; and an infusion tube structure, which includes a base and an infusion needle, and the base includes an initial position (L), a working position (N), and an intermediate position (M). The driving unit can drive the driving wheel in two directions for infusion drug, making the infusion unit have multiple infusion modes, enhancing user experience.

The invention discloses a bilateral-driven medical device with infusion and detection integrated, comprising: drug infusion unit; program unit comprising input end and output end, and the input end comprises a plurality of electrically connective regions for receiving signals of analyte data in the body fluid, after the output end is electrically connected to the power unit, the program unit controls whether the drug infusion unit delivers drugs; and an infusion cannula provided with at least two detecting electrodes, the infusion cannula is the drug infusion channel, the electrodes are disposed on the cannulawall. It takes only one insertion to perform both analyte detection and drug infusion.

A high pressure delivery system for delivering a medicament, comprising a first chamber for storing a supply of the medicament, a gear pump assembly in fluid communication with the first chamber, said gear pump assembly having a dose inlet and a dose discharge, said dose inlet having a larger diameter than said dose discharge to provide a high pressure discharge, and a fluid connection path in fluid communication with the gear pump assembly for delivering the medicament to a high pressure area.

An at least partly implantable system for injecting a substance into a patient's body. The system comprises at least one flexibly bendable infusion needle with a tip end of each of said at least one infusion needle arranged in at least one first housing for penetrating the first housing's outer wall in at least one penetration area and having the respective other end arranged in at least one second housing, the first and second housings being adapted for implantation inside the patient's body, wherein the at least one second housing is provided for implantation inside the patient's body remote from the at least one first housing and wherein the injection needle is sufficiently long to bridge the distance from the at least one second housing for remote implantation to the at least one first housing and further through the first housing up to the outer wall of the first housing. The system further comprises at least one drive unit adapted for being coupled to the at least one infusion needle and arranged at least for advancing the tip end of the at least one infusion needle so that the at least one infusion needle penetrates with the tip end or ends thereof said at least one first housing's outer wall in said at least one penetration area.

A nerve cuff for establishing a nerve block on a nerve can have a cuff body with a channel for receiving a nerve, a reservoir for holding a drug, and an elongate opening slit extending the length of the cuff body that can be opened to provide access to the channel and can be closed to enclose the cuff body around the nerve. The nerve cuff can also include an electrode for detecting and measuring electrical signals generated by the nerve. A controller can be used to control delivery of the drug based on the electrical signals generated by the nerve.

The invention discloses an intelligently controlled miniature fully closed-loop artificial pancreas, comprising: infusion unit configured to deliver drugs; program unit comprising input end and output end, and the input end comprises a plurality of electrically connective regions for receiving signals of analyte data in the body fluid, after the output end is electrically connected to the infusion unit, according to the received signals of analyte data in the body fluid, the program unit controls whether the infusion unit delivers drugs; an infusion cannula with conductive area, the infusion cannula is the drug infusion channel; and a plurality of electrodes for detecting analyte data in body fluid, the electrode comprising conductive-area electrode and cannula-wall electrode, and one or more cannula-wall electrodes being located on/in the wall of the infusion cannula. It takes only one insertion to perform both analyte detection and drug infusion.

The invention discloses a bilaterally driven integrated medical device, comprising: infusion unit; program unit comprising input end and output end, and the input end comprises a plurality of electrically connective regions for receiving signals of analyte data in the body fluid, after the output end is electrically connected to the power unit, the program unit controls whether the infusion unit delivers drugs; an infusion cannula with conductive area(s); and a plurality of electrodes for detecting analyte data in body fluid, the electrode comprising conductive-area electrode(s) and cannula-wall electrode(s), the conductive area of the infusion cannula being at least as a conductive-area electrode, and one or more cannula-wall electrodes being located on/in the wall of the infusion cannula. It takes only one insertion to perform both analyte detection and drug infusion.

The invention discloses a unilateral-driven medical device with infusion and detection integrated, comprising: drug infusion unit; program unit comprising input end and output end, and the input end comprises a plurality of electrically connective regions for receiving signals of analyte data in the body fluid, after the output end is electrically connected to the power unit, the program unit controls whether the drug infusion unit delivers drugs; and an infusion cannula provided with at least two detecting electrodes, the infusion cannula is the drug infusion channel, the electrodes are disposed on the cannula wall. It takes only one insertion to perform both analyte detection and drug infusion.

A drug infusion device includes a drug storage unit, a driving unit, a position detecting area, a power unit and a control unit. The piston is disposed in the drug storage unit, and a driving rod is connected to the piston. The driving unit includes a driving part and a positioning part. The driving unit drives the driving part and the positioning part to move. The positioning part interacts with the position detecting area at different positions to trigger different position signals. The power unit applies a force to move the driving unit. The control unit is connected to the position detecting area to receive the position signals, according to the position signals, the control unit controls the direction of the force applied by the power unit to move the driving unit and form optional infusion modes.

A patch-type drug infusion device includes an infusion unit. The infusion unit includes a drug storage unit, a piston, a rigid screw, a rotating shaft, a rotatable driving unit, a driving wheel provided with wheel teeth, a power unit and a rebound unit. The driving unit can rotate around the rotating shaft, driving the driving portion of the driving unit to push the wheel teeth to rotate the driving wheel which engages the rigid screw to move forward in a non-rotating way. The device also includes position detectors, a program unit, an infusion needle and an adhesive patch. The program unit is connected to the infusion unit to control drug infusion and convert received electrical or magnetic signals into the piston position information.