Patents by Inventor Anhua Li
Anhua Li 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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Patent number: 11540828Abstract: An adjustment mechanism for adjusting a formed staple height of a suture staple in a stapler comprises a first handle portion and a second handle portion. The first handle portion comprises a cartridge support located at a distal end, a cartridge assembly, a drive assembly, and the adjustment mechanism for adjusting a formed staple height of a suture staple, and the second handle portion comprises an anvil located at a distal end. The cartridge assembly comprises suture staples, and the drive assembly can drive a suture staple to leave the cartridge assembly to reach the anvil to be pressed and formed. The adjustment structure adjusts a distance between the drive assembly and the anvil to adjust a formed staple height of a suture staple in a stapler. This application further relates to a stapler, comprising the adjustment mechanism for adjusting a formed staple height of a suture staple in a stapler.Type: GrantFiled: June 27, 2017Date of Patent: January 3, 2023Assignees: SHANGHAI YISI MEDICAL TECHNOLOGY CO., LTD., YISI (SUZHOU) MEDICAL TECHNOLOGY CO., LTD.Inventors: Honglin Nie, Guang Yang, Xiliang Zhang, Xiufeng Shi, Anhua Li
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Publication number: 20220415549Abstract: Disclosed are a cerium magnet with diffused grain boundaries containing REFe2 and a preparation method therefor, wherein an original cerium magnet contains a 2-14-1 main phase, a REFe2 phase and a rare earth-rich phase, and the REFe 2 phase is a CeFe2 phase or a (Ce,RE?)Fe2 phase. The RE? element in a rare earth diffusion source is diffused into the original cerium magnet by means of a grain boundary diffusion treatment at the melting point of the REFe2 phase, and same is then cooled directly or cooled after a tempering treatment to room temperature to obtain a final cerium magnet. The final cerium magnet contains a new 2-14-1 main phase, a new enhanced REFe2 phase and a new rare earth-rich phase, wherein the new 2-14-1 main phase is a (Ce,RE?)2Fe14B or (Ce,RE?,RE?)2Fe14B main phase, and the new enhanced REFe2 phase is a (CeRE?)Fe2 phase or a (Ce,RE?,RE?)Fe2 phase, wherein RE? and RE? are one or more of La, Pr, Nd, Pm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Y.Type: ApplicationFiled: April 21, 2020Publication date: December 29, 2022Inventors: Haibo FENG, Anhua LI, Wei LI
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Patent number: 11369369Abstract: This application provides a linear stapler with an adjusting mechanism having wider adjusting scope and more suitable pressing force and being more convenient to operate, and including an adjusting shift lever with at least one step surface on each of upper and lower ends, an adjusting slider with multiple step surfaces on an end surface close to the adjusting shift lever, and an adjusting chassis having multiple step surfaces on an end surface close to the adjusting shift lever. The adjusting shift lever rotates with a shifted adjusting knob to generate relative displacement vertical to the step surface with the adjusting slider at one end and relative displacement vertical to the step surface with the adjusting chassis at the other end, and drive a nail abutting seat subassembly to rotate relatively to a nail bin seat, until the thickness of clamped tissue is consistent in near and far ends.Type: GrantFiled: July 9, 2018Date of Patent: June 28, 2022Assignees: EZISURG MEDICAL CO., LTD., EZISURG (SUZHOU) MEDICAL CO. LTD.Inventors: Honglin Nie, Shan Huang, Jun Yang, Anhua Li, Guang Yang, Jidong Chen
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Patent number: 11195645Abstract: The present invention relates to a Ce-containing sintered rare earth permanent magnet with high toughness and high coercivity and a method of preparing the magnet, belonging to the technical field of rare earth permanent magnetic materials. The magnet is prepared by steps of raw material batching, strip casting, hydrogen decrepitation and jet milling, powder orientating and forming, sintering and heat treatment. The materials of the permanent magnet comprise the main phase alloy powders and the Ce added phase alloy powders, wherein the Ce added phase alloy is a magnetic phase or a non-magnetic liquid-phase alloy; and the Ce added phase alloy accounts for 5% to 30% of the total weight of the permanent magnet, and the remainder is the main phase alloy. During the jet milling stage, a certain concentration of oxygen is added into the inert gas, so that the final magnet has an oxygen content of 1500 to 2500 ppm.Type: GrantFiled: April 4, 2019Date of Patent: December 7, 2021Assignee: CENTRAL IRON AND STEEL RESEARCH INSTITUTEInventors: Anhua Li, Haibo Feng, Wei Li, Longlong Xi, Min Tan, Yang Zhao
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Publication number: 20210233689Abstract: The present invention relates to a Ce-containing sintered rare earth permanent magnet with high toughness and high coercivity and a method of preparing the magnet, belonging to the technical field of rare earth permanent magnetic materials. The magnet is prepared by steps of raw material batching, strip casting, hydrogen decrepitation and jet milling, powder orientating and forming, sintering and heat treatment. The materials of the permanent magnet comprise the main phase alloy powders and the Ce added phase alloy powders, wherein the Ce added phase alloy is a magnetic phase or a non-magnetic liquid-phase alloy; and the Ce added phase alloy accounts for 5% to 30% of the total weight of the permanent magnet, and the remainder is the main phase alloy. During the jet milling stage, a certain concentration of oxygen is added into the inert gas, so that the final magnet has an oxygen content of 1500 to 2500 ppm.Type: ApplicationFiled: April 4, 2019Publication date: July 29, 2021Inventors: Anhua LI, Haibo FENG, Wei LI, Longlong XI, Min TAN, Yang ZHAO
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Publication number: 20200315620Abstract: The present invention discloses a surgical stapler. The surgical stapler includes a first handle part, a second handle part, and an adjustment mechanism. The first handle part comprises a staple cartridge component and a drive component, and the second handle part comprises a staple abutting seat. A locking mechanism is designed on the first handle part or/and the second handle part. The first handle part and the second handle part may rotate via the rotation shaft and lock in a longitudinal direction. The adjustment mechanism is located between the first handle part and the second handle part, which may make the second handle part rotate relative to the first handle part via the rotation shaft thereon.Type: ApplicationFiled: June 26, 2017Publication date: October 8, 2020Inventors: Honglin NIE, Guang YANG, Xiliang ZHANG, Xiufeng SHI, Anhua LI, Minghui BAO, Yang JIANG
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Publication number: 20200214698Abstract: The present application provides a linear stapler with an adjusting mechanism, comprising an adjusting shift lever with at least one step surface on each of an upper end and a lower end, an adjusting slider with at least three different step surfaces on an end surface close to the adjusting shift lever, and an adjusting chassis having at least three different step surfaces on an end surface close to the adjusting shift lever; when an adjusting knob is shifted, the adjusting shift lever rotates therewith, so that the adjusting shift lever generates relative displacement in a direction vertical to the step surface with the adjusting slider at one end, and generates relative displacement in a direction vertical to the step surface with the adjusting chassis at the other end, and further drives a nail abutting seat subassembly to generate rotation relative to a nail bin seat, until the thickness of clamped tissue is consistent in the near end and the far end.Type: ApplicationFiled: July 9, 2018Publication date: July 9, 2020Inventors: Honglin NIE, Shan HUANG, Jun YANG, Anhua LI, Guang YANG, Jidong CHEN
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Publication number: 20190269404Abstract: An adjustment mechanism for adjusting a formed staple height of a suture staple in a stapler comprises a first handle portion and a second handle portion. The first handle portion comprises a cartridge support located at a distal end, a cartridge assembly, a drive assembly, and the adjustment mechanism for adjusting a formed staple height of a suture staple, and the second handle portion comprises an anvil located at a distal end. The cartridge assembly comprises suture staples, and the drive assembly can drive a suture staple to leave the cartridge assembly to reach the anvil to be pressed and formed. The adjustment structure adjusts a distance between the drive assembly and the anvil to adjust a formed staple height of a suture staple in a stapler. This application further relates to a stapler, comprising the adjustment mechanism for adjusting a formed staple height of a suture staple in a stapler.Type: ApplicationFiled: June 27, 2017Publication date: September 5, 2019Inventors: Honglin NIE, Guang YANG, Xiliang ZHANG, Xiufeng SHI, Anhua LI
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Patent number: 10383632Abstract: A bending control mechanism includes a turning power input mechanism A, a turning transmission mechanism B, a locking mechanism C and a linear power output mechanism D; further, the turning power input mechanism A and the turning transmission mechanism B which are coaxially arranged have a relative rotating angle range in the circumferential direction; the turning power input mechanism A sequentially rotates in an angle I, an angle range II and an angle III while rotating relative to the turning transmission mechanism B from one end angle to the other end angle within a relative rotating angle range, wherein the angle I or the angle III corresponds to turning; the angle range II corresponds to a locking state. With the adoption of the mechanism, the problem of turning and fixing of the surgical instrument in a human body during surgery is solved, and the risk of surgery is reduced.Type: GrantFiled: September 22, 2015Date of Patent: August 20, 2019Assignees: SHANGHAI YISI MEDICAL TECHNOLOGY CO., LTD., YISI (SUZHOU) MEDICAL TECHNOLOGY CO., LTD.Inventors: Guang Yang, Honglin Nie, Anhua Li, Xiliang Zhang, Xiufeng Shi
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Patent number: 10342537Abstract: A bending control mechanism includes a turning power input mechanism, a turning transmission mechanism, a locking mechanism and a linear power output mechanism. The turning power input mechanism and the turning transmission mechanism which are coaxially arranged have a relative rotating angle range in the circumferential direction; the turning power input mechanism sequentially rotates in an angle I, an angle range II and an angle III while rotating relative to the turning transmission mechanism from one end angle to the other end angle of a relative rotating angle range, wherein the angle I or the angle III corresponds to turning; the angle range II corresponds to a locking state. With the adoption of the mechanism, the problem of turning and fixing of the surgical instrument in a human body during surgery is solved, and the risk of surgery is reduced.Type: GrantFiled: September 22, 2015Date of Patent: July 9, 2019Assignees: SHANGHAI YISI MEDICAL TECHNOLOGY CO., LTD., YISI#SUZHOU#MEDICAL TECHNOLOGY CO., LTD.Inventors: Guang Yang, Honglin Nie, Anhua Li, Xiliang Zhang, Xiufeng Shi
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Publication number: 20180289372Abstract: A surgical instrument comprises an actuator, an extension tube and a controller, wherein the near end of the extension tube is connected with the controller, the far end of the extension tube is connected with the actuator, and the actuator can rotate relative to the far end of the extension tube. The controller comprises a bend control mechanism capable of moving in at least one direction. The extension tube comprises a first flexible component and moves in at least one direction through the bend control mechanism. The first flexible component enables the actuator to rotate relative to the far end of the extension tube towards at least one side. A bendable magazine is further provided. The actuator can bend relative to the far end of the extension tube by a larger angle through the flexible components, thereby being suitable for medical treatment under more complex clinical conditions.Type: ApplicationFiled: June 29, 2016Publication date: October 11, 2018Inventors: Honglin NIE, Guang YANG, Xiliang ZHANG, Yang JIANG, Xiufeng SHI, Anhua LI
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Patent number: 9924945Abstract: An improved surgical apparatus actuator includes a nail bin assembly (1002), a nail anvil assembly (1001) connecting with the nail bin assembly (1002), and a drive assembly (1003) controlling the nail bin assembly (1002) and the nail anvil assembly (1001) to convert between opening and closing conditions. The nail anvil assembly (1001) includes a nail anvil plate (103) and a nail anvil seat (102), wherein the nail anvil plate (103) is provided on an inner side (1022) of the nail anvil seat (102), the nail anvil seat (102) has the structure, material and processing technology capable of providing high anti-bending performance, the nail anvil plate (103) is cold-punched from a thinner stainless steel sheet. Therefore, the processing difficulty of the components is reduced, and meanwhile, the ability of the actuator chuck to resist bending deformation is improved.Type: GrantFiled: August 22, 2013Date of Patent: March 27, 2018Assignee: SHANGHAI YISI MEDICAL TECHNOLOGY CO., LTDInventors: Minhua Zheng, Xinliang Zhang, Anhua Li, Bo Feng, Junjun Ma, Jing Sun
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Patent number: 9892832Abstract: The invention discloses a low-cost double-main-phase Ce permanent magnet alloy and its preparation method, and belongs to technical field of rare earth permanent magnet material. The Ce permanent magnet alloy has a chemical formula of (Cex,Re1-x)aFe100-a-b-cBbTMc in mass percent, wherein 0.4?x?0.8, 29?a?33, 0.8?b?1.5, 0.5?c?2, Re is one or more selected from Nd, Pr, Dy, Tb and Ho elements, and TM is one or more selected from Ga, Co, Cu, Nb and Al elements; the Ce permanent magnet alloy has a double-main-phase structure with a low HA phase in (Ce,Re)—Fe—B and a high HA phase in Nd—Fe—B. The double-main-phase Ce permanent magnet alloy of the present invention prepared by using a double-main-phase alloy method greatly lowers the production cost of magnet while maintaining excellent magnetic performances.Type: GrantFiled: March 15, 2013Date of Patent: February 13, 2018Assignee: CENTRAL IRON AND STEEL RESEARCH INSTITUTEInventors: Wei Li, Minggang Zhu, Haibo Feng, Anhua Li, Shulin Huang, Yanfeng Li, Yachao Sun, Jingdai Wang
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Publication number: 20170340327Abstract: A bending control mechanism includes a turning power input mechanism, a turning transmission mechanism, a locking mechanism and a linear power output mechanism. The turning power input mechanism and the turning transmission mechanism which are coaxially arranged have a relative rotating angle range in the circumferential direction; the turning power input mechanism sequentially rotates in an angle I, an angle range II and an angle III while rotating relative to the turning transmission mechanism from one end angle to the other end angle of a relative rotating angle range, wherein the angle I or the angle III corresponds to turning; the angle range II corresponds to a locking state. With the adoption of the mechanism, the problem of turning and fixing of the surgical instrument in a human body during surgery is solved, and the risk of surgery is reduced.Type: ApplicationFiled: September 22, 2015Publication date: November 30, 2017Applicants: SHANGHAI YISI MEDICAL TECHNOLOGY CO., LTD., YISI (SUZHOU) MEDICAL TECHNOLOGY CO., LTD.Inventors: Guang Yang, Honglin Nie, Anhua Li, Xiliang Zhang, Xiufeng Shi
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Publication number: 20170196559Abstract: A bending control mechanism includes a turning power input mechanism A, a turning transmission mechanism B, a locking mechanism C and a linear power output mechanism D; further, the turning power input mechanism A and the turning transmission mechanism B which are coaxially arranged have a relative rotating angle range in the circumferential direction; the turning power input mechanism A sequentially rotates in an angle I, an angle range II and an angle III while rotating relative to the turning transmission mechanism B from one end angle to the other end angle within a relative rotating angle range, wherein the angle I or the angle III corresponds to turning; the angle range II corresponds to a locking state. With the adoption of the mechanism, the problem of turning and fixing of the surgical instrument in a human body during surgery is solved, and the risk of surgery is reduced.Type: ApplicationFiled: September 22, 2015Publication date: July 13, 2017Inventors: Guang Yang, Honglin Nie, Anhua Li, Xiliang Zhang, Xiufeng Shi
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Publication number: 20150230795Abstract: An improved surgical apparatus actuator includes a nail bin assembly (1002), a nail anvil assembly (1001) connecting with the nail bin assembly (1002), and a drive assembly (1003) controlling the nail bin assembly (1002) and the nail anvil assembly (1001) to convert between opening and closing conditions. The nail anvil assembly (1001) includes a nail anvil plate (103) and a nail anvil seat (102), wherein the nail anvil plate (103) is provided on an inner side (1022) of the nail anvil seat (102), the nail anvil seat (102) has the structure, material and processing technology capable of providing high anti-bending performance, the nail anvil plate (103) is cold-punched from a thinner stainless steel sheet. Therefore, the processing difficulty of the components is reduced, and meanwhile, the ability of the actuator chuck to resist bending deformation is improved.Type: ApplicationFiled: August 22, 2013Publication date: August 20, 2015Inventors: Minhua Zheng, Xinliang Zhang, Anhua Li, Bo Feng, Junjun Ma, Jing Sun
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Publication number: 20140065004Abstract: The invention discloses a low-cost double-main-phase Ce permanent magnet alloy and its preparation method, and belongs to technical field of rare earth permanent magnet material. The Ce permanent magnet alloy has a chemical formula of (Cex,Re1-x)aFe100-a-b-cBbTMc in mass percent, wherein 0.4?x?0.8, 29?a?33, 0.8?b?1.5, 0.5?c?2, Re is one or more selected from Nd, Pr, Dy, Tb and Ho elements, and TM is one or more selected from Ga, Co, Cu, Nb and Al elements; the Ce permanent magnet alloy has a double-main-phase structure with a low HA phase in (Ce,Re)—Fe—B and a high HA phase in Nd—Fe—B. The double-main-phase Ce permanent magnet alloy of the present invention prepared by using a double-main-phase alloy method greatly lowers the production cost of magnet while maintaining excellent magnetic performances.Type: ApplicationFiled: March 15, 2013Publication date: March 6, 2014Applicant: CENTRAL IRON AND STEEL RESEARCH INSTITUTEInventors: Wei Li, Minggang Zhu, Haibo Feng, Anhua Li, Shulin Huang, Yanfeng Li, Yachao Sun, Jingdai Wang
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Patent number: 5654353Abstract: The present invention relates to a degradable starch resin composition, a process for preparing the same and the use thereof. Said composition comprises starch, synthetic resin, mixing promoter, plasticizer, degradation accelerator and other additives. Said process comprising: (a) selecting a biodegradation accelerator; (b) preparing modified starch concentrate; (c) extruding the modified starch, EAA and the synthetic resin in a double-screw extruder and pelleting to obtain the degradable starch resin. The composition of the present invention contains a biodegradation accelerator and its starch content can be up to 80%. Having excellent biodegradability and good physico-mechanical property, the composition is particularly suitable to be used to prepare various light or heavy packaging films and agricultural films, etc.Type: GrantFiled: May 25, 1995Date of Patent: August 5, 1997Assignee: Beijing Xingchen Modern Control Engineering InstituteInventors: Yunzheng Li, Haojun Zhu, Jianguang Sun, Anhua Li