Patents by Inventor Wenzhi PAN
Wenzhi PAN 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: 20220183694Abstract: The present invention relates to the field of medical device technologies, and more particularly, to a puncturable atrial septal occluder. The main body of the puncturable atrial septal occluder is made by heat setting after integrally weaving a memory wire material. The occluder includes a stent formed by a left disc, a right disc, and a waist connected, a large central through hole penetrating the stent, and a notch formed at the centers of the left and right discs after the penetration. A baffle membrane is provided inside the central through hole. The notch at the center of the right disc is provided with a plurality of connecting wires. One end of each of the plurality of connecting wires is converged and connected to the delivery component, and the other end of each of the plurality of connecting wires is connected to the right disc in a radioactive manner.Type: ApplicationFiled: August 18, 2021Publication date: June 16, 2022Inventors: Wenzhi PAN, Daxin ZHOU, Junbo GE
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Patent number: 10603168Abstract: A valve clamp for treating the cardiac valve regurgitation. The valve clamp includes a first clamp part, a second clamp part, and a connecting part. The first clamp part has the first clamping arms. The second clamp part has a corresponding number of second clamping arms. The first clamping arm and the second clamping arm can clip an object therebetween through the interaction force generated by closing and pushing against each other. Moreover, the valve clamp can also include a closed ring, which is sleeved outside the periphery of the first clamp part and the periphery of the second clamp part, such that the clamping arms can close as needed, and the clamping is tighter. The valve clamp has the advantages of a minimally invasive implantation, a simple manufacture, a low difficulty of operation, good effects, etc.Type: GrantFiled: February 15, 2017Date of Patent: March 31, 2020Assignee: ZHONGSHAN HOSPITAL, FUDAN UNIVERSITYInventors: Wenzhi Pan, Daxin Zhou, Junbo Ge, Leilei Cheng
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Publication number: 20190000623Abstract: A valve clamp for treating the cardiac valve regurgitation. The valve clamp includes a first clamp part, a second clamp part, and a connecting part. The first clamp part has the first clamping arms. The second clamp part has a corresponding number of second clamping arms. The first clamping arm and the second clamping arm can clip an object therebetween through the interaction force generated by closing and pushing against each other. Moreover, the valve clamp can also include a closed ring, which is sleeved outside the periphery of the first clamp part and the periphery of the second clamp part, such that the clamping arms can close as needed, and the clamping is tighter. The valve clamp has the advantages of a minimally invasive implantation, a simple manufacture, a low difficulty of operation, good effects, etc.Type: ApplicationFiled: February 15, 2017Publication date: January 3, 2019Applicant: Zhongshan Hospital, Fudan UniversityInventors: Wenzhi Pan, Daxin ZHOU, Junbo GE, Leilei CHENG
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Patent number: 9975085Abstract: A container-type biogas purification film method purification system comprises: a desulfurization and dehydration unit, a compressor, a purification unit, a heat exchanger, and a film-group purification and gas preparation unit that are disposed inside a movable container and are sequentially connected, the desulfurization and dehydration unit is connected to a biogas source generated by an anaerobic fermentation.Type: GrantFiled: June 20, 2014Date of Patent: May 22, 2018Assignee: BEIJING HELEE BIO-ENERGY LTD.Inventors: Wenzhi Pan, Changqing Zhou, Xinghua Yang, Hongyan Li, Dawei Wang, Wenjin Li
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Publication number: 20160166980Abstract: A container-type biogas purification film method purification system comprises: a desulfurization and dehydration unit, a compressor, a purification unit, a heat exchanger, and a film-group purification and gas preparation unit that are disposed inside a movable container and are sequentially connected, the desulfurization and dehydration unit is connected to a biogas source generated by an anaerobic fermentation.Type: ApplicationFiled: June 20, 2014Publication date: June 16, 2016Inventors: Wenzhi Pan, Changqing Zhou, Xinghua Yang, Hongyan Li, Dawei Wang, Wenjin Li
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Patent number: 8846381Abstract: A biogas desulfurization device comprises an anaerobic system, a desulfurization liquid circulating system, an oxygen supply device and a desulfurization system, wherein the anaerobic system is used for generating biogas and filling the generated biogas into the desulfurization system, the desulfurization liquid circulating system is used for filling the desulfurization liquid into the desulfurization system and recycling the desulfurization liquid that has undergone the desulfurization operation, the oxygen supply device is used for filling air into the desulfurization system, and the desulfurization system which comprises at least one stage desulfurization tower group is used for carrying out the desulfurization operation on the biogas from the anaerobic system, the desulfurization operation is conducted by the desulfurization liquid received from the desulfurization liquid circulating system in an aerobic environment.Type: GrantFiled: April 21, 2011Date of Patent: September 30, 2014Assignee: Beijing Helee Bio-Energy Technology Co., Ltd.Inventor: Wenzhi Pan
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Patent number: 8512574Abstract: The present invention relates to a grit chamber, wherein the chamber body of the grit chamber is in the shape of a hollow cylinder with a cone-shaped bottom; a grit channel is installed below the center of the cone-shaped bottom; a grit removing device is installed in the grit channel; a wall mixer, a plurality of vertical mixers and a spiral grit remover are installed in the chamber body; the wall mixer is installed on the wall of the hollow cylinder; the spiral grit remover is installed in the center of the cylinder, and is provided with a grit-removing blade for removing the grit on the cone-shaped bottom; and the vertical mixers are installed at the position close to the cone-shaped bottom and are vertical to the wall. The invention also provides a grit removing system containing a grit chamber and a grit removing method.Type: GrantFiled: January 7, 2011Date of Patent: August 20, 2013Assignee: Beijing Helee Bio-Energy Technology Co., Ltd.Inventor: Wenzhi Pan
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Publication number: 20120270307Abstract: A biogas desulfurization device comprises an anaerobic system, a desulfurization liquid circulating system, an oxygen supply device and a desulfurization system, wherein the anaerobic system is used for generating biogas and filling the generated biogas into the desulfurization system, the desulfurization liquid circulating system is used for filling the desulfurization liquid into the desulfurization system and recycling the desulfurization liquid that has undergone the desulfurization operation, the oxygen supply device is used for filling air into the desulfurization system, and the desulfurization system which comprises at least one stage desulfurization tower group is used for carrying out the desulfurization operation on the biogas from the anaerobic system, the desulfurization operation is conducted by the desulfurization liquid received from the desulfurization liquid circulating system in an aerobic environment.Type: ApplicationFiled: April 21, 2011Publication date: October 25, 2012Applicant: BEIJING HELEE BIO-ENERGY TECHNOLOGY CO., LTD.Inventor: WENZHI PAN
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Publication number: 20110186528Abstract: The present invention relates to a grit chamber, wherein the chamber body of the grit chamber is in the shape of a hollow cylinder with a cone-shaped bottom; a grit channel is installed below the center of the cone-shaped bottom; a grit removing device is installed in the grit channel; a wall mixer, a plurality of vertical mixers and a spiral grit remover are installed in the chamber body; the wall mixer is installed on the wall of the hollow cylinder; the spiral grit remover is installed in the center of the cylinder, and is provided with a grit-removing blade for removing the grit on the cone-shaped bottom; and the vertical mixers are installed at the position close to the cone-shaped bottom and are vertical to the wall. The invention also provides a grit removing system containing a grit chamber and a grit removing method.Type: ApplicationFiled: January 7, 2011Publication date: August 4, 2011Applicant: BEIJING HELEE BIO-ENERGY TECHNOLOGY CO., LTDInventor: Wenzhi PAN