Device and method for recording biopotentials in laboratory animals

    公开(公告)号:US20230301575A1

    公开(公告)日:2023-09-28

    申请号:US18122762

    申请日:2023-03-17

    摘要: A head stage designed for non-surgical placement of EEG electrodes in small animals is disclosed. The head stage is connected to thin barbed pin electrodes of multiple lengths, such that they can be placed into the brain at the chosen depth. A miniature device comprising a wireless transmitter or data logger can be attached using magnets or connectors to the stage. When the head stage is placed on the head of a small animal and pressure is applied on the stage, the set of pin electrodes penetrate the skull, such that the stage becomes firmly fixed to the skull. Further, the device includes electrodes on its body that eliminate the need of wires for EEG recordings. When the capsule including sharp electrodes is pressed toward the skull, the electrodes penetrate the bone and fixes the capsule onto the skull for recording biopotential signals from the brain.

    ANIMAL FEEDING APPARATUS AND METHOD USING SAME

    公开(公告)号:US20230263133A1

    公开(公告)日:2023-08-24

    申请号:US18147728

    申请日:2022-12-29

    发明人: XIA WU YUN XU YIFAN GE

    IPC分类号: A01K5/02 A61D7/00

    摘要: An animal feeding apparatus is related, including a base and a reservoir connected to the base, the medium in the reservoir is driven into or out of the reservoir through a port of the reservoir. The base includes a first cavity communicating with the reservoir, and a second cavity adjacent to and communicating with the first cavity. A piston is movable positioned in the first cavity, and having a first force end away from the reservoir. An activator is movable positioned in the second cavity, and having a second force end away from the reservoir. An linkage member is formed between the first cavity and the second cavity, and engages with the piston and the activator and guide the piston and the activator to move in two opposite directions to get the medium to move into or out of the reservoir. An animal feeding method is also related.

    Animal Control System
    14.
    发明申请

    公开(公告)号:US20180353276A1

    公开(公告)日:2018-12-13

    申请号:US16004016

    申请日:2018-06-08

    IPC分类号: A61D7/00 A01K5/01 A01K11/00

    CPC分类号: A61D7/00 A01K5/01 A01K11/006

    摘要: An animal injection system under the control of a remote operator. The system may be used to inject animals with medications and/or RFID chips. Food bait is provided in such a manner as to require an animal to expose its chest and underside. Cameras are used to determine the orientation of the animal and its gender. Images of the animal are sent to the remote operator who determines whether or not to inject an animal. Cellphone networks may be used to transmit animal images to the remote operator and send commands from the operator to the injection system. The system may include a temperature control system to maintain medications in a pre-selected temperature range.

    DISCHARGER WITH IMPROVED PIERCING TIP
    17.
    发明申请

    公开(公告)号:US20180326154A1

    公开(公告)日:2018-11-15

    申请号:US15755838

    申请日:2016-08-19

    申请人: Sulzer Mixpac AG

    发明人: Josef ETTLIN

    摘要: A discharger for discharging a predetermined amount of fluid includes a housing defining a longitudinal first axis and having a proximal end and a distal end, a discharge section having a discharge passage for the fluid extending between an inlet opening and an outlet opening of the discharge section, a carriage cooperating with the proximal end region of the housing such that the carriage is moveable relative to the housing along the first axis, the carriage including a receiving space for the fluid, and a piercing tip having a flow channel for establishing a flow connection for the fluid from the receiving space to the inlet opening of the discharge section, the piercing tip defining a centrally extending longitudinal second axis and having a shell surface. The shell surface of the piercing tip has an essentially convexly curved.