Exoskeleton with admittance control

    公开(公告)号:US11337881B2

    公开(公告)日:2022-05-24

    申请号:US16107041

    申请日:2018-08-21

    摘要: A control system and method for an exoskeleton is provided. The control system utilizes the admittance control paradigm to provide a system and method for manipulating the exoskeleton using minimal force from the user. A force/torque sensor and servo motors are fitted onto a passive arm support, enabling motorized support for a user with upper extremity weaknesses. The exoskeleton may be used on any extremity. The admittance control paradigm includes an impedance control and an admittance control to allow a user with upper extremity weakness and limited independence to intuitively and with minimal force control the precise trajectory of their arms to achieve a greater degree of independence in activities of daily living. Unlike existing passive arm supports that utilize springs or rubber bands to balance the user's arm against gravity, this system provides more precise gravity compensation and minimizes the amount of force required to control the exoskeleton.

    Electromagnetic Induction Pervaporation Membrane

    公开(公告)号:US20220105470A1

    公开(公告)日:2022-04-07

    申请号:US17485932

    申请日:2021-09-27

    发明人: Wen Zhang Weihua Qing

    摘要: A pervaporation apparatus and method for liquid mixture separation are disclosed. The pervaporation disclosed utilizes an interfacial-heating membrane utilizing induction heating to provide temperature differences across the membrane for driving liquid mixture separation. The pervaporation system may include an electromagnetic induction heating device that is placed close to or encapsulated in a membrane module wherein one or more membranes with surfaces containing ferromagnetic or other induction-responsive materials. The membrane surface generates localized heat owing to the presence of a ferromagnetic composition that converts electric energy from an induction source to thermal energy. The ferromagnetic composition could include, without limitation, metals, metal alloys, composite materials, nanocomposite materials, nanoparticles, meshes, and combinations thereof.

    Designer Peptide Opsonins
    5.
    发明申请

    公开(公告)号:US20210388031A1

    公开(公告)日:2021-12-16

    申请号:US17348994

    申请日:2021-06-16

    IPC分类号: C07K14/005 G16B15/00

    摘要: Disclosed is a new strategy, composition, and method for a self-assembling peptides (SAP) that will self-assemble atop COVID-19 for immune destruction and act as a functional COVID-19 opsonin. The designed self-assembling peptides bind and assemble atop SARS-CoV-2—providing a new mechanism of infection abrogation. One benefit is avoidance of side effects that other formulations or repurposed drugs contain. Other feature of this technology include: (a) (SAP) are composed of L-amino acids that are highly biocompatible sub-Q, IM and IV (no adverse reaction for 10% blood volume replacement with 1 w % peptide in mice or rats); (b) Highly targeted approach that binds to viral particles preventing side effects; (c) SAP are intrinsically biodegradable and endocytosed; (d) SAP bound COVID-19 may promote engulfment, clearance, and antigen presentation (for immunity development); and (e) targeting the spike protein with SAP may allow treatment of other coronaviruses.

    Coupled High and Low-Frequency Ultrasound Systems and Methods for Remediation of Contaminated Solids

    公开(公告)号:US20210229106A1

    公开(公告)日:2021-07-29

    申请号:US17154872

    申请日:2021-01-21

    IPC分类号: B02C19/18

    摘要: Systems and methods to remediate, degrade, and/or remove pollutants within various contaminated environmental solid media that includes contaminated soils and sediments, biosolids and slurries by subjecting a mixture of the contaminated solids and a liquid to acoustic cavitation generated by more than one type of ultrasonic device. One of the ultrasonic devices operates at a low frequency and the other ultrasonic device operates at a high frequency. The system advantageously provide an efficient, sustainable, and easy to handle approach to degrade contaminant, requiring only electrical energy

    Microfluidic diagnostic assembly
    9.
    发明授权

    公开(公告)号:US10898894B2

    公开(公告)日:2021-01-26

    申请号:US16312091

    申请日:2017-06-21

    IPC分类号: G01N21/00 B01L3/00 G01N33/543

    摘要: Improved diagnostic assemblies are provided. More particularly, the present disclosure provides improved and highly advantageous chip based diagnostic assemblies configured to detect human diseases (e.g., cancer) and/or pathogens, and related methods of use. In exemplary embodiments, the present disclosure provides for consumable micro- or nano-fluidic chip based diagnostic assemblies having visual biosensors, with the diagnostic assemblies using continuous flow-based micro- or nano-fluidic channels and antibody-based immuno-complex designs. In certain embodiments, the diagnostic assembly includes a self-sustainable and operable chip (e.g., thumb-sized chip) that is configured to be deployed as a single use consumable with a direct all-or-none readout as an output to satisfy a point of screening method to screen a population.

    Radiative treatment of liquids in desalination and other membrane processes

    公开(公告)号:US10828606B2

    公开(公告)日:2020-11-10

    申请号:US16031651

    申请日:2018-07-10

    IPC分类号: B01D61/36

    摘要: Radiative heating and radiative feed modification systems and methods using microwave, radio frequency, magnetic field and ultrasound in membrane separation processes including membrane distillation (MD), reverse osmosis, forward osmosis and pervaporation are disclosed. Membrane distillation systems include at least one MD module, the MD module having at least one membrane, a feed inlet operable to receive a feed media and a feed outlet, and a radiative energy source operable to apply radiation to a feed media entering the feed inlet.