Patents by Inventor Hugh Qinghong Zhao
Hugh Qinghong Zhao 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).
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Publication number: 20230405216Abstract: This application relates to the field of injection technology, especially a type of portable carbon dioxide gas injector. The technical solution of the invention includes a storage tube, one end of which is connected with a passage tube, and a passage valve is provided at the end of the passage tube away from the storage tube. A piston adapted to the injection device body is arranged inside the storage tube. A driving assembly for driving the piston is arranged on one side of the piston away from the passage tube, and a regulating assembly for adjusting the gas storage volume is arranged on the other side of the driving assembly away from the passage tube. The invention achieves quantitative control of the injection amount of carbon dioxide, which can alleviate the discomfort of patients.Type: ApplicationFiled: August 30, 2023Publication date: December 21, 2023Inventors: Hugh Qinghong Zhao, Alexander Nikanorov, Qinghua Zhao, Qing Liu, Helong Wang, Hong Du, Lele Lu
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Patent number: 11596708Abstract: A medical polymer device comprising a biodegradable polymer is provided, wherein the biodegradable polymer has a crystallinity of about 10% to about 80%, and preferably from about 20% to about 60%, wherein the medical polymer device comprises a small molecule organic compound which diffuses into the biodegradable polymer, the small molecule organic compound has a molecular weight of from about 100 to about 1000 Daltons, preferably from about 150 to about 500 Daltons, and more preferably from about 150 to about 250 Daltons, and the small molecule organic compound is non-evaporating or low-evaporating. The present invention also provides a method for preparing a medical polymer device according to the present invention as well as a method for modifying a medical polymer device made from a biodegradable polymer.Type: GrantFiled: February 3, 2021Date of Patent: March 7, 2023Assignee: Beijing Advanced Medical Technologies, Ltd. Inc.Inventors: Hugh Qinghong Zhao, Qing Liu, Hanqing Feng, Guixin Shi, Dengqiang Jia
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Publication number: 20210338460Abstract: A temporary expandable tissue support device includes a plurality of helical filaments superimposed on top of one another to form a tubular body. A first end of the tubular body is coupled to an inner shaft, and a second end of the tubular body is coupled to an outer shaft slidably disposed over the inner shaft. Actuation of the inner and outer shafts in a first direction compresses the plurality of filaments thereby radially expanding the tubular body into an expanded configuration adapted to engage and support tissue at a treatment site without obstructing a fluid from flowing past the tubular body. Actuation of the shafts in a second direction opposite the first direction tensions the plurality of filaments thereby radially collapsing the tubular body into a collapsed configuration that is adapted to be delivered to or removed from the treatment site.Type: ApplicationFiled: July 16, 2021Publication date: November 4, 2021Inventors: Alexander Nikanorov, Hugh Qinghong Zhao
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Patent number: 11090174Abstract: A temporary expandable tissue support device includes a plurality of helical filaments superimposed on top of one another to form a tubular body. A first end of the tubular body is coupled to an inner shaft, and a second end of the tubular body is coupled to an outer shaft slidably disposed over the inner shaft. Actuation of the inner and outer shafts in a first direction compresses the plurality of filaments thereby radially expanding the tubular body into an expanded configuration adapted to engage and support tissue at a treatment site without obstructing a fluid from flowing past the tubular body. Actuation of the shafts in a second direction opposite the first direction tensions the plurality of filaments thereby radially collapsing the tubular body into a collapsed configuration that is adapted to be delivered to or removed from the treatment site.Type: GrantFiled: February 11, 2020Date of Patent: August 17, 2021Assignee: Amaitus, Inc.Inventors: Alexander Nikanorov, Hugh Qinghong Zhao
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Publication number: 20210244551Abstract: A temporary expandable tissue support device includes a plurality of helical filaments superimposed on top of one another to form a tubular body. A first end of the tubular body is coupled to an inner shaft, and a second end of the tubular body is coupled to an outer shaft slidably disposed over the inner shaft. Actuation of the inner and outer shafts in a first direction compresses the plurality of filaments thereby radially expanding the tubular body into an expanded configuration adapted to engage and support tissue at a treatment site without obstructing a fluid from flowing past the tubular body. Actuation of the shafts in a second direction opposite the first direction tensions the plurality of filaments thereby radially collapsing the tubular body into a collapsed configuration that is adapted to be delivered to or removed from the treatment site.Type: ApplicationFiled: February 11, 2020Publication date: August 12, 2021Inventors: Alexander Nikanorov, Hugh Qinghong Zhao
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Publication number: 20210170067Abstract: A medical polymer device comprising a biodegradable polymer is provided, wherein the biodegradable polymer has a crystallinity of about 10% to about 80%, and preferably from about 20% to about 60%, wherein the medical polymer device comprises a small molecule organic compound which diffuses into the biodegradable polymer, the small molecule organic compound has a molecular weight of from about 100 to about 1000 Daltons, preferably from about 150 to about 500 Daltons, and more preferably from about 150 to about 250 Daltons, and the small molecule organic compound is non-evaporating or low-evaporating. The present invention also provides a method for preparing a medical polymer device according to the present invention as well as a method for modifying a medical polymer device made from a biodegradable polymer.Type: ApplicationFiled: February 3, 2021Publication date: June 10, 2021Inventors: Hugh Qinghong Zhao, Qing Liu, Hanqing Feng, Guixin Shi, Dengqiang Jia
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Patent number: 11007298Abstract: A medical polymer device comprising a biodegradable polymer is provided, wherein the biodegradable polymer has a crystallinity of about 10% to about 80%, and preferably from about 20% to about 60%, wherein the medical polymer device comprises a small molecule organic compound which diffuses into the biodegradable polymer, the small molecule organic compound has a molecular weight of from about 100 to about 1000 Daltons, preferably from about 150 to about 500 Daltons, and more preferably from about 150 to about 250 Daltons, and the small molecule organic compound is non-evaporating or low-evaporating. The present invention also provides a method for preparing a medical polymer device according to the present invention as well as a method for modifying a medical polymer device made from a biodegradable polymer.Type: GrantFiled: May 4, 2016Date of Patent: May 18, 2021Assignee: Beijing Advanced Medical Technologies, Ltd. Inc.Inventors: Hugh Qinghong Zhao, Qing Liu, Hanqing Feng, Guixin Shi, Dengqiang Jia
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Publication number: 20200306409Abstract: A medical polymer device comprising a biodegradable polymer is provided, wherein the biodegradable polymer has a crystallinity of about 10% to about 80%, and preferably from about 20% to about 60%, wherein the medical polymer device comprises a small molecule organic compound which diffuses into the biodegradable polymer, the small molecule organic compound has a molecular weight of from about 100 to about 1000 Daltons, preferably from about 150 to about 500 Daltons, and more preferably from about 150 to about 250 Daltons, and the small molecule organic compound is non-evaporating or low-evaporating. The present invention also provides a method for preparing a medical polymer device according to the present invention as well as a method for modifying a medical polymer device made from a biodegradable polymer.Type: ApplicationFiled: May 4, 2016Publication date: October 1, 2020Inventors: Hugh Qinghong Zhao, Qing Liu, Hanqing Feng, Guixin Shi, Dengqiang Jia
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Publication number: 20200138613Abstract: Disclosed herein is a close-cell structured stent which is composed of curved struts that intersect at a crossing angle of 90 to 170 degrees in the longitudinal direction. Methods for making the stent, use of the stent as a vascular stent, an esophagus stent, an intestine stent, a bile conduct stent, or a urinary tract stent, and use of the stent in the manufacture of stent graft for the treatment of abdominal aortic aneurysms are also provided. The stent has both excellent longitudinal flexibility and radial strength.Type: ApplicationFiled: December 20, 2019Publication date: May 7, 2020Inventors: Hugh Qinghong Zhao, Guixin Shi, Yongquan Gu, Qing Li
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Patent number: 10603194Abstract: Disclosed herein is a close-cell structured stent which is composed of curved struts that intersect at a crossing angle of 90 to 170 degrees in the longitudinal direction. Methods for making the stent, use of the stent as a vascular stent, an esophagus stent, an intestine stent, a bile conduct stent, or a urinary tract stent, and use of the stent in the manufacture of stent graft for the treatment of abdominal aortic aneurysms are also provided. The stent has both excellent longitudinal flexibility and radial strength.Type: GrantFiled: December 11, 2017Date of Patent: March 31, 2020Assignee: Beijing Advanced Medical Technologies, Ltd. Inc.Inventors: Hugh Qinghong Zhao, Guixin Shi, Yongquan Gu, Qing Liu
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Publication number: 20200069836Abstract: A polymer-based embolization device comprises a helix constructed by a linear structure. The linear structure is either a fibrous structure or composed of an A structure (1) and a B structure (2), wherein the A structure (1) is a protrusion on the linear structure and the B structure (2) is a pillar-shaped structure positioned between two A structures (1) for connecting the two A structures (1). The embolization device adopts a linear structural design and is integrally manufactured using a polymer material via a four-axis rapid forming system or via a compression method, thereby addressing issues of generation of image artifacts during CT and magnetic resonance imaging. The combination of design, material, and technique of the invention provides the device with improved flexibility and embolus formation, and can satisfy different clinical requirements.Type: ApplicationFiled: December 13, 2016Publication date: March 5, 2020Inventors: Hugh Qinghong Zhao, Qinghua Zhao, Dengqiang Jia, Shujun Cui, Qing Liu
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Publication number: 20180104044Abstract: Disclosed herein is a close-cell structured stent which is composed of curved struts that intersect at a crossing angle of 90 to 170 degrees in the longitudinal direction. Methods for making the stent, use of the stent as a vascular stent, an esophagus stent, an intestine stent, a bile conduct stent, or a urinary tract stent, and use of the stent in the manufacture of stent graft for the treatment of abdominal aortic aneurysms are also provided. The stent has both excellent longitudinal flexibility and radial strength.Type: ApplicationFiled: December 11, 2017Publication date: April 19, 2018Inventors: Hugh Qinghong Zhao, Guixin Shi, Yongquan Gu, Qing Liu
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Patent number: 6439238Abstract: A diagnostic method is for indicating a patient's susceptibility to treatment of snoring by stiffening a region of the patient's a naso-pharyngeal area includes applying a stiffening agent to an outer surface of the region of the naso-pharyngeal area. The stiffening agent is left in place on the outer surface for at least a temporary period of time. During the temporary period of time, observation is made of any abatement of snoring.Type: GrantFiled: June 30, 2000Date of Patent: August 27, 2002Assignee: Pi Medical, Inc.Inventors: Michael P. Brenzel, Hugh Qinghong Zhao