Patents by Inventor Wen Ren

Wen Ren has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12290270
    Abstract: Aspects of present disclosures involve systems, methods, and apparatus for a bone mounted robotic-assisted orthopedic surgery system for precise implant position, soft tissue balancing, and guidance of tools during a surgical procedure, particularly partial or total knee replacement procedure. The system features a bone-mounted robotic arm with an end-effector for precise positioning of a surgical tool, positioning of implants, and balancing of soft tissues. The reconfigurable robotic system requires minimal training by surgeons, is intuitive to use similar to conventional instrumented surgery, and has a small footprint. The system works with existing, conventional instruments, patient-specific instruments, sensor-assisted systems, and computer-assisted systems and does not require increased surgical time and safely provides the enhanced precision achievable by robotic-assisted systems and computer-assisted technologies.
    Type: Grant
    Filed: December 20, 2023
    Date of Patent: May 6, 2025
    Assignee: Unik Orthopedics, Inc.
    Inventor: Charlie Wen-Ren Chi
  • Publication number: 20250041078
    Abstract: The present invention relates to a system and method for load and gap balancing in knee replacement surgery. The system incorporates sensor devices, such as load cells, pressure, ultrasound or optical, to accurately measure gaps and ligament tensions within the knee joint during surgery. Additionally, a tensioner device, which can be a manual spreader, a spring-loaded mechanism, or a motorized linear actuator, is employed to tension the medial and lateral collateral ligaments, as well as patella tendon, based on the measured data. These real-time measurements are transmitted to a computer or robotic surgery system, which provides real-time visualization of the data and assists the surgeon in determining the appropriate gap and ligament tension for each individual patient. Using soft tissue analysis, the real-time sensor data can be displayed on a computer recommending appropriate gap and ligament tension, implant size and shape, and individualized knee alignment based on optimal outcome.
    Type: Application
    Filed: July 30, 2024
    Publication date: February 6, 2025
    Inventor: Charlie Wen-Ren CHI
  • Publication number: 20250009449
    Abstract: Described within are systems, methods and apparatus for a bone mounted robotic-assisted orthopedic surgery system for precise implant position, soft tissue balancing and guidance of tools during a surgical procedure, particularly partial or total knee replacement procedure. The system features a bone mounted robotic arm with end-effector for precise positioning of surgical tool, position in of implants and balancing of soft tissues. The reconfigurable robotic system requires minimal training by surgeons, is intuitive to use similar to conventional instrumented surgery and has a small footprint. The system works with existing, conventional instruments, patient specific instruments, sensor-assisted systems and computer-assisted systems and does not require increased surgical time and safely provides the enhanced precision achievable by robotic-assisted systems and computer-assisted technologies.
    Type: Application
    Filed: September 24, 2024
    Publication date: January 9, 2025
    Inventor: Charlie Wen-Ren CHI
  • Patent number: 12121311
    Abstract: Described within are systems, methods and apparatus for a bone mounted robotic-assisted orthopedic surgery system for precise implant position, soft tissue balancing and guidance of tools during a surgical procedure, particularly partial or total knee replacement procedure. The system features a bone mounted robotic arm with end-effector for precise positioning of surgical tool, position in of implants and balancing of soft tissues. The reconfigurable robotic system requires minimal training by surgeons, is intuitive to use similar to conventional instrumented surgery and has a small footprint. The system works with existing, conventional instruments, patient specific instruments, sensor-assisted systems and computer-assisted systems and does not require increased surgical time and safely provides the enhanced precision achievable by robotic-assisted systems and computer-assisted technologies.
    Type: Grant
    Filed: June 9, 2023
    Date of Patent: October 22, 2024
    Assignee: Unik Orthopedics, Inc.
    Inventor: Charlie Wen-Ren Chi
  • Publication number: 20240337654
    Abstract: The present disclosure relates to a novel method for lateral flow immunoassay (LFIA) by utilizing plasmonic enhancement strategy. More specifically, the present disclosure provides a plasmonic enhanced lateral flow sensor (pLFS) concept by introducing a liposome-based amplification of the colorimetric signals on the lateral flow platform for ultrasensitive detection of pathogens.
    Type: Application
    Filed: June 20, 2024
    Publication date: October 10, 2024
    Applicant: Purdue Research Foundation
    Inventors: Joseph Irudayaraj, Wen Ren
  • Patent number: 12031983
    Abstract: The present disclosure relates to a novel method for lateral flow immunoassay (LFIA) by utilizing plasmonic enhancement strategy. More specifically, the present disclosure provides a plasmonic enhanced lateral flow sensor (pLFS) concept by introducing a liposome-based amplification of the colorimetric signals on the lateral flow platform for ultrasensitive detection of pathogens.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: July 9, 2024
    Assignee: Purdue Research Foundation
    Inventors: Joseph Irudayaraj, Wen Ren
  • Publication number: 20240122610
    Abstract: Aspects of present disclosures involve systems, methods, and apparatus for a bone mounted robotic-assisted orthopedic surgery system for precise implant position, soft tissue balancing, and guidance of tools during a surgical procedure, particularly partial or total knee replacement procedure. The system features a bone-mounted robotic arm with an end-effector for precise positioning of a surgical tool, positioning of implants, and balancing of soft tissues. The reconfigurable robotic system requires minimal training by surgeons, is intuitive to use similar to conventional instrumented surgery, and has a small footprint. The system works with existing, conventional instruments, patient-specific instruments, sensor-assisted systems, and computer-assisted systems and does not require increased surgical time and safely provides the enhanced precision achievable by robotic-assisted systems and computer-assisted technologies.
    Type: Application
    Filed: December 20, 2023
    Publication date: April 18, 2024
    Inventor: Charlie Wen-Ren CHI
  • Patent number: 11890023
    Abstract: Aspects of present disclosures involve systems, methods, and apparatus for a bone mounted robotic-assisted orthopedic surgery system for precise implant position, soft tissue balancing, and guidance of tools during a surgical procedure, particularly partial or total knee replacement procedure. The system features a bone-mounted robotic arm with an end-effector for precise positioning of a surgical tool, positioning of implants, and balancing of soft tissues. The reconfigurable robotic system requires minimal training by surgeons, is intuitive to use similar to conventional instrumented surgery, and has a small footprint. The system works with existing, conventional instruments, patient-specific instruments, sensor-assisted systems, and computer-assisted systems and does not require increased surgical time and safely provides the enhanced precision achievable by robotic-assisted systems and computer-assisted technologies.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: February 6, 2024
    Assignee: Unik Orthopedics, Inc.
    Inventor: Charlie Wen-Ren Chi
  • Publication number: 20240024251
    Abstract: A unique class of perfluorocarbon-free Dextran-based oxygen nanobubbles (DONBs) and formulations thereof. The critical components in the formulation are chosen among the U.S. Food, and Drug Administration's (FDA) approved compounds, which provide a biocompatible environment for incorporating pharmaceutical agents. Moreover, the nanobubbles are fabricated with simple sonication and homogenization method that easily fulfills the current good manufacturing practices (cGMP) requirements, which will promote scaleup production for commercial manufacturing. The formulated DONBs release oxygen over an extended period to keep the partial pressure of oxygen within the inner retina high and thus preserve retinal tissue from ischemia.
    Type: Application
    Filed: November 19, 2021
    Publication date: January 25, 2024
    Applicant: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Joseph Maria Kumar IRUDAYARAJ, Muhammad FAYYAZ, Michael TSIPURSKY, Wen REN
  • Publication number: 20240003877
    Abstract: Devices, systems, and methods are provided for magnetic focus enhanced lateral flow assays. The devices and systems are ultrasensitive and provide for the visual detection of the presence or absence of one or more target analytes—which may include pathogens, proteins, or even molecules smaller than the foregoing—even when such analytes are only present in very limited amounts. The devices and systems include an immunostrip with a magnet positioned adjacent thereto, and magnetic probes specific to a target analyte that bind to the target analyte with specificity if present within a fluid sample to be tested. Methods are also provided for detecting one or more target analytes using magnetic focus, such methods including a step of controlling movement of a target analyte complex on an immunostrip incorporating a magnetic field, where such control slows a flow of the target analyte complex through a capture area on the immunostrip.
    Type: Application
    Filed: September 18, 2023
    Publication date: January 4, 2024
    Inventors: Joseph MK IRUDAYARAJ, Wen REN
  • Publication number: 20230372581
    Abstract: Herein is described an oxygen nanobubbles-embedded hydrogel (ONB-G) with carbopol for oxygenation of wounds to accelerate the wound healing process. We integrate carbopol hydrogel and dextran-based ONBs, to prepare ONB-G that can hold oxygen and release it to accelerate wound healing. Oxygen release tests showed that the proposed ONB-G could maintain oxygen in the hydrogels for up to 34 days. Also, fluorescence studies indicated that the ONB-G could maintain the high oxygen levels for up to 8 weeks. Histological evaluation of tissues with a pig model with incision and punch wounds showed that treatment with ONB-G exhibited improved healing compared with hydrogel without ONBs or treated without gel. Our studies show that dextran-shell ONBs embedded in a gel (ONB-G) has the potential to accelerate wound healing given its oxygen holding capacity and release properties.
    Type: Application
    Filed: May 19, 2023
    Publication date: November 23, 2023
    Inventors: Joseph Maria Kumar IRUDAYARAJ, Wen REN, Michael TSIPURSKY
  • Patent number: 11818838
    Abstract: A metal-clad laminate is provided. The metal-clad laminate includes: a dielectric layer, which has a first reinforcing material and a dielectric material formed on the surface of the first reinforcing material, wherein the dielectric material includes 60 wt % to 80 wt % of a first fluoropolymer and 20 wt % to 40 wt % of a first filler; an adhesive layer, which is disposed on at least one side of the dielectric layer and includes an adhesive material, wherein the adhesive material has 60 wt % to 70 wt % of a second fluoropolymer and 30 wt % to 40 wt % of a second filler; and a metal foil, which is disposed on the other side of the adhesive layer that is opposite to the dielectric layer, wherein the melting point of the second fluoropolymer is lower than the melting point of the first fluoropolymer.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: November 14, 2023
    Assignee: TAIWAN UNION TECHNOLOGY CORPORATION
    Inventors: Wen-Ren Chen, Shi-Ing Huang, Shur-Fen Liu
  • Publication number: 20230310097
    Abstract: Described within are systems, methods and apparatus for a bone mounted robotic-assisted orthopedic surgery system for precise implant position, soft tissue balancing and guidance of tools during a surgical procedure, particularly partial or total knee replacement procedure. The system features a bone mounted robotic arm with end-effector for precise positioning of surgical tool, position in of implants and balancing of soft tissues. The reconfigurable robotic system requires minimal training by surgeons, is intuitive to use similar to conventional instrumented surgery and has a small footprint. The system works with existing, conventional instruments, patient specific instruments, sensor-assisted systems and computer-assisted systems and does not require increased surgical time and safely provides the enhanced precision achievable by robotic-assisted systems and computer-assisted technologies.
    Type: Application
    Filed: June 9, 2023
    Publication date: October 5, 2023
    Inventor: Charlie Wen-Ren CHI
  • Patent number: 11761958
    Abstract: Devices, systems, and methods are provided for magnetic focus enhanced lateral flow assays. The devices and systems are ultrasensitive and provide for the visual detection of the presence or absence of one or more target analytes—which may include pathogens, proteins, or even molecules smaller than the foregoing—even when such analytes are only present in very limited amounts. The devices and systems include an immunostrip with a magnet positioned adjacent thereto, and magnetic probes specific to a target analyte that bind to the target analyte with specificity if present within a fluid sample to be tested. Methods are also provided for detecting one or more target analytes using magnetic focus, such methods including a step of controlling movement of a target analyte complex on an immunostrip incorporating a magnetic field, where such control slows a flow of the target analyte complex through a capture area on the immunostrip.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: September 19, 2023
    Assignee: Purdue Research Foundation
    Inventors: Joseph M K Irudayaraj, Wen Ren
  • Patent number: 11717359
    Abstract: Described within are systems, methods and apparatus for a bone mounted robotic-assisted orthopedic surgery system for precise implant position, soft tissue balancing and guidance of tools during a surgical procedure, particularly partial or total knee replacement procedure. The system features a bone mounted robotic arm with end-effector for precise positioning of surgical tool, positioning of implants and balancing of soft tissues. The reconfigurable robotic system requires minimal training by surgeons, is intuitive to use similar to conventional instrumented surgery and has a small footprint. The system works with existing, conventional instruments, patient specific instruments, sensor-assisted systems and computer-assisted systems and does not require increased surgical time and safely provides the enhanced precision achievable by robotic-assisted systems and computer-assisted technologies.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: August 8, 2023
    Assignee: Unik Orthopedics, Inc.
    Inventor: Charlie Wen-Ren Chi
  • Patent number: 11591301
    Abstract: A compound is represented by formula (I). A pharmaceutical composition contains the compound of formula (I). The compound is used in the preparation of an indoleamine-2,3-dioxygenase (IDO) inhibitor drug. The compound exhibits inhibition effect on IDO protease and metabolizes stably in the body. The compound or pharmaceutical composition thereof can be used for preparing an IDO inhibitor drug, and can also be used for preparing a drug for preventing and/or treating diseases having IDO-mediated tryptophan metabolic pathway pathological features.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: February 28, 2023
    Assignee: HINOVA PHARMACEUTICALS INC.
    Inventors: Wu Du, Wen Ren, Haibin Lv, Haibo Li, Kun Wen, Jinyun He, Dekun Qin, Xinghai Li, Yuanwei Chen
  • Publication number: 20220404512
    Abstract: The disclosure relates to a method for GNSS-based localization of a vehicle, comprising at least the following steps: a) receiving GNSS-satellite signals from GNSS satellites and determining at least one item of distance information about the distance between the vehicle and the GNSS satellite emitting the relevant GNSS-satellite signal, b) determining at least one item of environmental information about the environment around the vehicle using image information determined using at least one environment sensor of the vehicle, which is capable of capturing images of at least part of the environment around the vehicle from different perspectives, c) determining at least one item of correction information using the at least one environmental information item, and d) correcting the at least one distance information item by means of the at least one correction information item.
    Type: Application
    Filed: June 13, 2022
    Publication date: December 22, 2022
    Inventors: Christian Skupin, Wen Ren
  • Patent number: 11529797
    Abstract: A method of manufacturing a metal-clad laminate and uses of the same are provided. The method comprises the following steps: (a) impregnating a reinforcement material with a first fluoropolymer solution, and drying the impregnated reinforcement material under a first temperature to obtain a first prepreg; (b) impregnating the first prepreg with a second fluoropolymer solution, and drying the impregnated first prepreg under a second temperature to obtain a second prepreg; and (c) laminating the second prepreg and a metal-clad to obtain a metal-clad laminate, wherein the first fluoropolymer solution has a first fluoropolymer, the second fluoropolymer solution has a second fluoropolymer, and the first fluoropolymer and the second fluoropolymer are different.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: December 20, 2022
    Assignee: TAIWAN UNION TECHNOLOGY CORPORATION
    Inventors: Wen-Ren Chen, Shur-Fen Liu
  • Patent number: 11447477
    Abstract: Provided is a compound represented by formula (I). Also provided are a pharmaceutical composition containing the compound of formula (I) and use of the compound in preparing indoleamine-2,3-dioxygenase (IDO) inhibitor drugs. The compound or the pharmaceutical composition thereof can be used for preparing drugs for preventing and/or treating diseases having pathological features of IDO-mediated tryptophan metabolic pathways.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: September 20, 2022
    Assignee: HINOVA PHARMACEUTICALS INC.
    Inventors: Wu Du, Chaowu Ai, Yu Li, Kun Wen, Haibin Lv, Wen Ren, Jinyun He, Dekun Qin, Xinghai Li, Yuanwei Chen
  • Publication number: 20220244407
    Abstract: The disclosure relates to a method for generating a three-dimensional environment model using GNSS measurements, comprising at least the following steps: a) receiving a plurality of measuring data sets, each of which describes a propagation path of a GNSS signal between a GNSS satellite and a GNSS receiver; b) selecting from the plurality of measuring data sets individual measuring data sets which meet a first selection criterion, the first selection criterion being characteristic for the presence of an object boundary along the propagation path of the GNSS signal; and c) capturing an object boundary of an object in the environment of at least one GNSS receiver using the measuring data sets selected.
    Type: Application
    Filed: July 8, 2020
    Publication date: August 4, 2022
    Inventors: Christian Skupin, Nikolay Mikhaylov, Wen Ren, Andreas Hinrichs