7 results about "Syringe Drive" patented technology

The invention relates to the technical field of band switch detection, in particular to a continuous detection device for a band switch. Comprising a motor installed on a support, the support is provided with a detection module, an output shaft of the motor is fixedly connected with a rotating shaft, the support is provided with an electric control push rod, a telescopic part of the electric control push rod is fixedly connected with a fixing ring, the fixing ring is rotatably connected with a rotating ring, and the rotating ring is fixedly connected with a circular ring and a plurality of missing gears. The support is provided with an injector which is communicated with an injection tube. According to the invention, the circular ring and the different gears are adjusted to be respectively aligned with the rack, and the moving distance and the moving time of the rack driving the telescopic part on the injector are changed, so that the liquid spraying amount of the injection tube is adjusted, and the liquid is sprayed to the vicinity of the switch to simulate the external environment influence in the long-time use process of the switch; the continuous rotation detection of the switch is closer to the use environment, so that the accuracy of the continuous detection of the switch is improved.

The anesthetic needle puncture auxiliary tool based on the disposable syringe comprises a shell and an air pressure sensor, a syringe driving mechanism is arranged on the shell, the syringe driving mechanism can be detachably connected with a syringe outside the shell, and the syringe driving mechanism drives a piston of the syringe outside the shell to move. The outer side face of the outer shell or the outer shell extends outwards through an extension structure to be provided with an air pipe connector communicated with an air pressure sensor, and the air pipe connector can be connected with the outer shell puncture gas pipeline. And the air pressure sensor detects the air pressure change in the puncture gas pipeline outside the shell. The puncture needle is inflated and / or sucked through the injector, the air pressure sensor detects the air pressure change of the puncture needle, whether the puncture needle reaches the target position in the target object or not is judged, the structure is simple, and operation is convenient.

The utility model relates to an automatic stomach tube food suction and injection device which comprises a base, a food injection needle cylinder and a food suction and injection driving mechanism are installed on the base, and the rear end of a pintle of the food injection needle cylinder is connected with the food suction and injection driving mechanism. The food sucking and injecting device is characterized in that the food sucking and injecting device further comprises a food sucking and injecting switcher and a food box, the food sucking and injecting switcher is provided with a first connector capable of sucking and outputting liquid food, a second connector only capable of sucking the liquid food in one direction and a third connector only capable of outputting the liquid food in one direction; the first connector is connected with a nipple at the front end of the food injection needle cylinder through a first connecting pipe, the second connector is connected with the food box through a second connecting pipe, and the third connector is connected with the rear end of the stomach tube. The constant-temperature liquid food heat preservation device is simple and ingenious in structure, reasonable in design, capable of achieving automatic suction and output of liquid food, easy to operate, free of falling risk, capable of achieving active constant-temperature heat preservation of the liquid food, good in heat preservation effect and comfortable to use by a patient.

This application relates to the field of medical device technology, providing a syringe driving mechanism and injection device. The syringe driving mechanism includes a housing assembly, a clutch assembly, an adjusting assembly, a numerical rotating cylinder, a reset component, a push rod assembly, and a memory component. A third limiting part is used to limit the clockwise rotation stroke of the memory component. After the scale adjustment is completed, when the memory component is limited to the third limiting part of the push rod assembly in the clockwise direction, the adjusting assembly cannot continue to rotate clockwise relative to the clutch assembly. After the injection is completed, the numerical rotating cylinder rotates counterclockwise to the second limiting part, preventing the adjusting assembly from rotating counterclockwise. This indicates that the medication in the vial assembly has been completely injected. Therefore, after the medication is used up, the adjusting assembly self-locks, preventing further scale adjustments and injections, thus reducing the risk of accidental injection after the medication in the vial assembly has run out.

This invention relates to the field of band switch testing technology, and particularly to a continuous testing device for band switches. It includes a motor mounted on a bracket, a testing module mounted on the bracket, a rotating shaft fixedly connected to the motor's output shaft, an electrically controlled push rod mounted on the bracket, a fixed ring fixedly connected to the telescopic part of the electrically controlled push rod, a rotating ring rotatably connected to the fixed ring, a circular ring and several missing gears fixedly connected to the rotating ring, and a syringe mounted on the bracket, the syringe being connected to an injection tube. This invention adjusts the liquid ejection volume from the injection tube by adjusting the alignment of the circular ring and different missing gears with a rack, thereby changing the movement distance and timing of the telescopic part on the syringe driven by the rack. This allows the liquid to be ejected near the switch, simulating the external environmental influences experienced by the switch during prolonged use, making the continuous rotation detection of the switch more closely resemble the actual operating environment, and thus improving the accuracy of continuous switch testing.

An automatic injection device is disclosed. The syringe includes a barrel for containing the fluid, a needle arranged at a proximal end of the barrel, and a movable plunger rod movable within the barrel. The automatic injection device includes a syringe retaining assembly for retaining the syringe; and a syringe driving assembly including a housing and a driving mechanism releasably arranged in the housing. The driving mechanism includes a movable body moveable after the driving mechanism is released, a first driving spring and a second driving spring, wherein the second driving spring is configured to drive the barrel of the syringe to move proximally to insert the needle of the syringe into an injection site of a target, and the first driving spring is configured to drive the movable plunger rod to move proximally to carry out injection; and the first and second driving springs have different spring stiffnesses.

The invention discloses a multi-needle type mouse positioning injection device, and belongs to the technical field of mouse positioning injection. Comprising a stereotaxic instrument with a three-dimensional moving mechanical arm, and further comprises a driver fixed with the three-dimensional moving mechanical arm, and an injection driving mechanism and a locking driving mechanism are arranged in the driver; the multi-needle converter is rotationally installed at the bottom of the driver, a plurality of sets of elastic sliding pieces driven by the locking driving mechanism to slide are rotationally and symmetrically distributed on the same circumference of the end of the multi-needle converter, and each set of elastic sliding piece is provided with an injector driven by the injection driving mechanism; and a laser transmitter of which a light beam is coaxial with a needle head is mounted in one injector. The laser transmitter is integrated in the multi-needle converter, so that laser spots can reflect the positions of the needle heads more intuitively and accurately; the syringes are rotationally and symmetrically distributed, other syringes can be rapidly switched, and repositioning is not needed any more.