Patents by Inventor Shiyi Zhang

Shiyi Zhang 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).

  • Publication number: 20190175500
    Abstract: Residence structures, systems, and related methods are generally provided. Certain embodiments comprise administering (e.g., orally) a residence structure to a subject (e.g., a patient) such that the residence structure is retained at a location internal to the subject for a particular amount of time (e.g., at least about 24 hours) before being released. The residence structure may be, in some cases, a gastric residence structure. In some embodiments, the structures and systems described herein comprise one or more materials configured for high levels of active substances (e.g., a therapeutic agent) loading, high active substance and/or structure stability in acidic environments, mechanical flexibility and strength in an internal orifice (e.g., gastric cavity), easy passage through the GI tract until delivery to at a desired internal orifice (e.g., gastric cavity), and/or rapid dissolution/degradation in a physiological environment (e.g., intestinal environment) and/or in response to a chemical stimulant (e.
    Type: Application
    Filed: February 15, 2019
    Publication date: June 13, 2019
    Applicants: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.
    Inventors: Andrew Bellinger, Shiyi Zhang, Carlo Giovanni Traverso, Robert S. Langer, Stacy Mo, Tyler Grant, Mousa Jafari, Dean Liang Glettig, Angela DiCiccio, Lowell L. Wood, JR., Philip A. Eckhoff
  • Publication number: 20190133936
    Abstract: Residence structures, systems, and related methods are generally provided. Certain embodiments comprise administering (e.g., orally) a residence structure to a subject (e.g., a patient) such that the residence structure is retained at a location internal to the subject for a particular amount of time (e.g., at least about 24 hours) before being released. The residence structure may be, in some cases, a gastric residence structure. In some embodiments, the structures and systems described herein comprise one or more materials configured for high levels of active substances (e.g., a therapeutic agent) loading, high active substance and/or structure stability in acidic environments, mechanical flexibility and strength in an internal orifice (e.g., gastric cavity), easy passage through the GI tract until delivery to at a desired internal orifice (e.g., gastric cavity), and/or rapid dissolution/degradation in a physiological environment (e.g., intestinal environment) and/or in response to a chemical stimulant (e.
    Type: Application
    Filed: November 1, 2018
    Publication date: May 9, 2019
    Applicants: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.
    Inventors: Andrew Bellinger, Shiyi Zhang, Carlo Giovanni Traverso, Robert S. Langer, Stacy Mo, Tyler Grant, Mousa Jafari, Dean Liang Glettig, Angela DiCiccio, Lowell L. Wood, JR., Philip A. Eckhoff
  • Publication number: 20190125667
    Abstract: Residence structures, systems, and related methods are generally provided. Certain embodiments comprise administering (e.g., orally) a residence structure to a subject (e.g., a patient) such that the residence structure is retained at a location internal to the subject for a particular amount of time (e.g., at least about 24 hours) before being released. The residence structure may be, in some cases, a gastric residence structure. In some embodiments, the structures and systems described herein comprise one or more materials configured for high levels of active substances (e.g., a therapeutic agent) loading, high active substance and/or structure stability in acidic environments, mechanical flexibility and strength in an internal orifice (e.g., gastric cavity), easy passage through the GI tract until delivery to at a desired internal orifice (e.g., gastric cavity), and/or rapid dissolution/degradation in a physiological environment (e.g., intestinal environment) and/or in response to a chemical stimulant (e.
    Type: Application
    Filed: June 21, 2018
    Publication date: May 2, 2019
    Applicants: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.
    Inventors: Andrew Bellinger, Shiyi Zhang, Carlo Giovanni Traverso, Robert S. Langer, Stacy Mo, Tyler Grant, Mousa Jafari, Dean Liang Glettig, Angela DiCiccio, Omar Abouzid, Ameya R. Kirtane
  • Publication number: 20190070108
    Abstract: Residence structures, systems, and related methods are generally provided. Certain embodiments comprise administering (e.g., orally) a residence structure to a subject (e.g., a patient) such that the residence structure is retained at a location internal to the subject for a particular amount of time (e.g., at least about 24 hours) before being released. The residence structure may be, in some cases, a gastric residence structure. In some embodiments, the structures and systems described herein comprise one or more materials configured for high levels of active substances (e.g., a therapeutic agent) loading, high active substance and/or structure stability in acidic environments, mechanical flexibility and strength in an internal orifice (e.g., gastric cavity), easy passage through the GI tract until delivery to at a desired internal orifice (e.g., gastric cavity), and/or rapid dissolution/degradation in a physiological environment (e.g., intestinal environment) and/or in response to a chemical stimulant (e.
    Type: Application
    Filed: November 1, 2018
    Publication date: March 7, 2019
    Applicants: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.
    Inventors: Andrew Bellinger, Shiyi Zhang, Carlo Giovanni Traverso, Robert S. Langer, Stacy Mo, Tyler Grant, Mousa Jafari, Dean Liang Glettig, Angela DiCiccio, Lowell L. Wood, JR., Philip A. Eckhoff
  • Publication number: 20190070107
    Abstract: Residence structures, systems, and related methods are generally provided. Certain embodiments comprise administering (e.g., orally) a residence structure to a subject (e.g., a patient) such that the residence structure is retained at a location internal to the subject for a particular amount of time (e.g., at least about 24 hours) before being released. The residence structure may be, in some cases, a gastric residence structure. In some embodiments, the structures and systems described herein comprise one or more materials configured for high levels of active substances (e.g., a therapeutic agent) loading, high active substance and/or structure stability in acidic environments, mechanical flexibility and strength in an internal orifice (e.g., gastric cavity), easy passage through the GI tract until delivery to at a desired internal orifice (e.g., gastric cavity), and/or rapid dissolution/degradation in a physiological environment (e.g., intestinal environment) and/or in response to a chemical stimulant (e.
    Type: Application
    Filed: November 1, 2018
    Publication date: March 7, 2019
    Applicants: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.
    Inventors: Andrew Bellinger, Shiyi Zhang, Carlo Giovanni Traverso, Robert S. Langer, Stacy Mo, Tyler Grant, Mousa Jafari, Dean Liang Glettig, Angela DiCiccio, Lowell L. Wood, JR., Philip A. Eckhoff
  • Patent number: 10182985
    Abstract: Certain embodiments comprise administering a residence structure to a subject (e.g., a patient) such that the residence structure is retained at a location internal to the subject for a particular amount of time (e.g., at least about 24 hours) before being released. In certain embodiments, the structure has a modular design, combining a material configured for controlled release of therapeutic, diagnostic, and/or enhancement agents with a structural material necessary for gastric residence but configured for controlled and/or tunable degradation/dissolution to determine the time at which retention shape integrity is lost and the structure passes out of the gastric cavity. For example, in certain embodiments, the residence structure comprises a first elastic component, a second component configured to release an active substance, and, optionally, a linker. In some such embodiments, the linker may be configured to degrade.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: January 22, 2019
    Assignees: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.
    Inventors: Andrew Bellinger, Shiyi Zhang, Carlo Giovanni Traverso, Robert S. Langer, Stacy Mo, Tyler Grant, Mousa Jafari, Dean Liang Glettig, Angela DiCiccio, Lowell L. Wood, Jr., Philip A. Eckhoff
  • Publication number: 20170266112
    Abstract: Residence structures, systems, and related methods are generally provided. Certain embodiments comprise administering (e.g., orally) a residence structure to a subject (e.g., a patient) such that the residence structure is retained at a location internal to the subject for a particular amount of time (e.g., at least about 24 hours) before being released. The residence structure may be, in some cases, a gastric residence structure. In some embodiments, the structures and systems described herein comprise one or more materials configured for high levels of active substances (e.g., a therapeutic agent) loading, high active substance and/or structure stability in acidic environments, mechanical flexibility and strength in an internal orifice (e.g., gastric cavity), easy passage through the GI tract until delivery to at a desired internal orifice (e.g., gastric cavity), and/or rapid dissolution/degradation in a physiological environment (e.g., intestinal environment) and/or in response to a chemical stimulant (e.
    Type: Application
    Filed: December 16, 2016
    Publication date: September 21, 2017
    Applicants: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.
    Inventors: Andrew Bellinger, Shiyi Zhang, Carlo Giovanni Traverso, Robert S. Langer, Stacy Mo, Tyler Grant, Mousa Jafari, Dean Liang Glettig, Angela DiCiccio, Omar Abouzid, Ameya R. Kirtane
  • Publication number: 20170266931
    Abstract: Compositions and articles comprising omniphobic materials for bio-related and other applications are generally provided. In some embodiments, the compositions and articles described herein may be introduced internally of a subject (e.g., in the esophagus, in the gastrointestinal tract, in the rectum). In some aspects, the compositions and articles comprise a releasable therapeutic agent In some embodiments, the compositions and articles described herein may be configured to have a relatively short retention time at the location internal of the subject (e.g., less than 2 seconds) such as a capsule comprising an omniphobic coating. In alternative embodiments, the compositions and articles described herein may be configured to have relative long retention times at the location internal of the subject (e.g., greater than 10 minutes) and include a mucoadhesive portion as well as an omniphobic portion. Such articles may have an omniphobic portion which resists adhesion and/or fouling (e.g.
    Type: Application
    Filed: March 21, 2017
    Publication date: September 21, 2017
    Applicants: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.
    Inventors: Robert S. Langer, Carlo Giovanni Traverso, Shiyi Zhang, Young-Ah Lucy Lee
  • Publication number: 20170135954
    Abstract: Residence devices as well as their related methods of manufacture and use are generally provided. In some embodiments, a residence device includes a plurality of self-assembling structures that assemble in vivo to form an aggregate structure. Each structure of the plurality of structures includes a first side and a first attachment point that attaches to a second attachment point on another structure of the plurality of structures. The aggregate structure may be sized and shaped to maintain an in vivo position relative to an internal orifice of a subject. The attachment between the first and second attachment points may degrade after a period of time.
    Type: Application
    Filed: June 11, 2015
    Publication date: May 18, 2017
    Applicants: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.
    Inventors: Andrew Bellinger, Shiyi Zhang, Carlo Giovanni Traverso, Robert S. Langer, Stacy Mo, Jiaqi Lin, Angela DiCiccio, Dean Liang Glettig, Lowell L. Wood, JR., Philip A. Eckhoff
  • Publication number: 20170128576
    Abstract: Enteric elastomers and related methods are generally provided. In some embodiments, the enteric elastomer is a polymer composite. Certain embodiments comprise a polymer composite in which hydrogen bonds within two carboxyl group-containing polymers cross-link the polymer networks into an elastic and pH-responsive polymer composite. Advantageously, this polymer composite has the capacity of being stable and elastic in an acidic environment such as that of the stomach but can be dissolved in a neutral pH environment such as that of the small and large intestines. In some embodiments, the polymer composites described herein comprise a mixture of two or more polymers with carboxyl functionality such that the two or more polymers form hydrogen bonds. In certain embodiments, the polymer composite has both enteric and elastic properties.
    Type: Application
    Filed: June 11, 2015
    Publication date: May 11, 2017
    Applicants: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc., Tokitae LLC
    Inventors: Shiyi Zhang, Andrew Bellinger, Carlo Giovanni Traverso, Robert S. Langer, Dean Liang Glettig, Lowell L. Wood, JR., Philip A. Eckhoff
  • Publication number: 20170106099
    Abstract: Residence structures, systems, and related methods are generally provided. Certain embodiments comprise administering (e.g., orally) a residence structure to a subject (e.g., a patient) such that the residence structure is retained at a location internal to the subject for a particular amount of time (e.g., at least about 24 hours) before being released. The residence structure may be, in some cases, a gastric residence structure. In some embodiments, the structures and systems described herein comprise one or more materials configured for high levels of active substances (e.g., a therapeutic agent) loading, high active substance and/or structure stability in acidic environments, mechanical flexibility and strength in an internal orifice (e.g., gastric cavity), easy passage through the GI tract until delivery to at a desired internal orifice (e.g., gastric cavity), and/or rapid dissolution/degradation in a physiological environment (e.g., intestinal environment) and/or in response to a chemical stimulant (e.
    Type: Application
    Filed: June 11, 2015
    Publication date: April 20, 2017
    Applicants: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.
    Inventors: Andrew Bellinger, Shiyi Zhang, Carlo Giovanni Traverso, Robert S. Langer, Stacy Mo, Tyler Grant, Mousa Jafari, Dean Liang Glettig, Angela DiCiccio, Lowell L. Wood, JR., Philip A. Eckhoff
  • Patent number: 9545447
    Abstract: The present disclosure generally relates to polymer-drug systems, and more particularly to nanoscopic particles comprising amphiphilic block copolymers conjugated, physically encapsulated, or otherwise combined with chemotherapeutic agents along a selective region or regions of the backbone of the copolymer, so as to package the chemotherapeutic agent in selective domains within each nanoscopic particle, as well as to methods for making such particles, and applications and methods for using such particles, including in the formation of polymer micelles.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: January 17, 2017
    Assignee: The Texas A&M University System
    Inventors: Karen Wooley, Jiong Zou, Mahmoud El Sabahy, Shiyi Zhang, Fuwu Zhang
  • Publication number: 20160317796
    Abstract: In accordance with the invention, compositions, devices, and related methods have been developed for medical-related and other applications. In some embodiments, the devices and compositions described herein comprise a triggerable shape memory polymer network. In certain embodiments, the polymer network comprises a covalently crosslinked polymeric material and a non-crosslinked polymeric material associated with the crosslinked polymeric material. In some cases, the polymer network has a first configuration (e.g., as polymerized), and a second configuration (e.g., upon heating and deformation), such that the polymer network can be triggered to recover the first configuration upon heating the polymeric material above a softening temperature of the polymeric material. In certain embodiments, the polymer network comprises a plurality of particles capable of increasing the temperature of the polymer network (e.g.
    Type: Application
    Filed: April 29, 2016
    Publication date: November 3, 2016
    Applicant: Massachusetts Institute of Technology
    Inventors: Shiyi Zhang, Yida Zhao, Carlo Giovanni Traverso, Robert S. Langer
  • Publication number: 20140193504
    Abstract: The present disclosure generally relates to polymer-drug systems, and more particularly to nanoscopic particles comprising amphiphilic block copolymers conjugated, physically encapsulated, or otherwise combined with chemotherapeutic agents along a selective region or regions of the backbone of the copolymer, so as to package the chemotherapeutic agent in selective domains within each nanoscopic particle, as well as to methods for making such particles, and applications and methods for using such particles, including in the formation of polymer micelles.
    Type: Application
    Filed: October 1, 2013
    Publication date: July 10, 2014
    Inventors: Karen Wooley, Jiong Zou, Mahmoud El Sabahy, Shiyi Zhang, Fuwu Zhang