Patents Assigned to ETTA BIOTECH CO., LTD
  • Patent number: 11421196
    Abstract: Disclosed herein is a high-density distributed three-dimensional electrode device and an associated electroporation method. The method includes applying an electric pulse of a first polarity to a first group of electrodes while simultaneously applying an electrical pulse of a second polarity to a remaining group of electrodes, and then applying an electric pulse of the first polarity on a second group of electrodes while simultaneously applying an electric pulse of the second polarity to the remaining groups of electrodes. The electrodes receiving the electric pulse of the first polarity being surrounded by the electrodes receiving the electric pulse of the second polarity, and the first polarity and the second polarity are opposite.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: August 23, 2022
    Assignee: ETTA BIOTECH CO., LTD.
    Inventor: Edward Dai
  • Patent number: 10982182
    Abstract: The present invention discloses a flow electroporation device comprising a three-dimensional electrode device and a flow electroporation chamber, the three-dimensional electrode device comprising an electrode array and an electrode fixing assembly for fixing electrodes in the electrode array, the flow electroporation chamber comprising a cavity, an inlet, an outlet and an opening, the inlet, the outlet and the opening on the cavity, and the electrode array being inserted into the cavity through the opening. By means of the above-mentioned manner, the flow electroporation device of the present invention can achieve a high throughput cell treatment, and also can work under a low voltage condition, can avoid damages to cells brought by liquid flow, can reduce effects brought by heat and cathode effect induced by electric pulses, and can maintain an closed aseptic environment.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: April 20, 2021
    Assignee: ETTA BIOTECH CO., LTD.
    Inventor: Edward Dai
  • Patent number: 10731120
    Abstract: The present invention discloses a flow electroporation device comprising a three-dimensional electrode device and a flow electroporation chamber, the three-dimensional electrode device comprising an electrode array and an electrode fixing assembly for fixing electrodes in the electrode array, the flow electroporation chamber comprising a cavity, an inlet, an outlet and an opening, the inlet, the outlet and the opening on the cavity, and the electrode array being inserted into the cavity through the opening By means of the above-mentioned manner, the flow electroporation device of the present invention can achieve a high throughput cell treatment, and also can work under a low voltage condition, can avoid damages to cells brought by liquid flow, can reduce effects brought by heat and cathode effect induced by electric pulses, and can maintain an closed aseptic environment.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: August 4, 2020
    Assignee: ETTA BIOTECH CO., LTD.
    Inventor: Edward Dai
  • Patent number: 10173057
    Abstract: An electroporating drug delivering device using hollow needle electrode includes a drug delivering head, a control console as well as a control line and a tube for connecting the drug delivering head and the control console. The drug delivering head includes a universal joint, a camera, an illuminating lamp, a molecular drug delivery structure, an electric connector, a grille, a hollow needle electrode array, and a stretchable structure. The control console includes a display for observing images, a rocker for controlling the universal joint, and a remote starting unit for controlling the generation of electric pulses. The control console is connected with the electric connector inside of the drug delivering head by the line arranged inside of the tube. The electroporating drug-administration device enhances the drug utilization efficiency and reduces the treatment time, and can accurately adjust the intensity and region of the electric field.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: January 8, 2019
    Assignee: ETTA BIOTECH CO., LTD
    Inventor: Edward Dai