5 results about "Injection Procedure" patented technology

This invention discloses an injection system and its control method, relating to the field of medical aesthetic devices. The system includes: an injection needle, an injection assembly, an actuator, and a controller. The injection assembly includes: a reservoir for storing medication; a plunger reciprocating within the reservoir; and an actuator connected to the plunger for driving the plunger forward during skin insertion to execute an injection procedure; the medication flowing from the reservoir outlet to the tip of the injection needle is defined as an injection channel; the actuator connected to the injection needle for driving the injection needle to extend for skin insertion or retraction; and the controller electrically connected to the actuator and the actuator, configured to: control the actuator to retract the injection needle after the injection procedure is completed; and trigger a retraction procedure the instant the injection needle leaves the skin surface; wherein the retraction procedure includes: controlling the actuator to drive the plunger backward to retract a preset amount of medication. This invention controls the triggering of the retraction procedure the instant the injection needle leaves the skin surface, preventing medication spillage.

The application provides a piston driving device for a continuous micro-dosing device and a working method, which comprises the following steps: under the action of a control device, a force storage and release device releases a specified piston stroke, and a force storage device outputs a linear thrust to push a piston push rod device to move in a specified direction for a specified piston stroke. By adding a sufficient amount of liquid medicine into a medicine storage device, the control device obtains an injection instruction or an injection program inputted from outside, and the control device starts to control the force storage and release device to release the specified piston stroke, and the force storage device outputs a linear moment to push the piston push rod device to move in the specified direction for the specified piston stroke. The force storage device is used as a power source to push the piston by a direct pushing mode, the required pulse number is calculated according to the required dose or the distance of the piston movement, the control device is used to accurately control the force storage and release device to release the specified piston stroke, the accuracy of the dosing dose is improved, and the structure is simple and the cost is low.

The application discloses a detection method of related substances in (3S, 5S)-3-Boc-amino-5-methylpiperidine. The related substances are detected by using a gas chromatography method. The detection method provided by the application solves the interference problem of other impurities possibly introduced in the process. The application researches and screens gas phase lining pipes of different materials, capillary columns of different stationary liquids, different sample injection procedures, sample injection bottle materials and sample dispensing droppers, provides an optimized detection method, and proposes solutions to the problems of poor reproducibility, adsorption and leaching in the detection process, so that the accuracy of the detection result is ensured.

To provide an injection device that improves injection procedures and ensures injection safety. [Solution] The injection device includes an injection body and an adapter. An injection end and a non-injection end are defined on both sides of the injection body. The injection body includes an injection member, a drug container, a movable member, and a drive mechanism. The injection member is located at the injection end and is in fluid communication with the drug container. The movable member is located within the drug container. The drive mechanism is located at the non-injection end and engages with the movable member. The adapter is detachably assembled to the injection end. When the drive mechanism rotates in a first direction, the movable member moves linearly toward the non-injection end along the longitudinal axis of the drug container. When the drive mechanism rotates in a second direction, the movable member moves linearly toward the injection end along the longitudinal axis of the drug container.