Patents by Inventor Wensheng ZHANG

Wensheng 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: 20190274962
    Abstract: The present invention relates to a preparation method for a traditional Chinese medicine drop pill and a traditional Chinese medicine micro drop pill prepared by using the method, and in particular, the present invention relates to a micro drop pill preparation method with high drug-loading capacity, simple preparation process and high production rate and a micro drop pill prepared by using the method. Specially, The drop pill preparation method used comprises the following steps: (1) material melting step: heat melting a medicine and a drop pill matrix to obtain a molten medicine liquid; (2) dropping step: delivering the molten medicine liquid to a dripper, and acquiring medicine drops of the molten medicine liquid by means of vibration dropping; and, (3) condensation step: cooling the medicine drops with a cooling gas to obtain micro drop pills.
    Type: Application
    Filed: May 24, 2019
    Publication date: September 12, 2019
    Applicant: TASLY PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Xijun Yan, Naifeng Wu, Kaijing Yan, Xiaobing Sun, Shunnan Zhang, Zhengliang Ye, Hai'ou Dong, Hongbo Zhang, Wensheng Zhang, Lihong Zhou, Chenming Li, Cong Chen, Xiaofeng Liu, Shiqing Wang, Changsheng Rong, Yongfeng Zheng, Lijun Fan
  • Patent number: 10300030
    Abstract: A traditional Chinese medicine composition and preparation thereof for treating cardiovascular diseases is provided. The traditional Chinese medicine composition consists of: by weight percentage, phenolic acid derivatives 30%˜80%, tanshinones 2%˜10% and saponins 15%˜60%.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: May 28, 2019
    Assignee: Tasly Pharmaceutical Group Co., Ltd.
    Inventors: Xijun Yan, Naifeng Wu, Shunnan Zhang, Ping Li, Zhengliang Ye, Lihong Zhou, Lianwen Qi, Fenglian Zhang, Minchao Qi, Zhexuan Yang, Wei Sun, Jing Yu, Hua Yang, Peng Liu, Xiaohui Ma, Hai'ou Dong, Wensheng Zhang, Lanlan Zhang, Chenming Li
  • Patent number: 10011562
    Abstract: The present invention relates to long-chain dimethylaniline derivative compounds, their preparation methods, self-assembled texture, and uses thereof. Said compounds show ultralong acting anaesthetic effect, and belong to N-diethylaminoacetyl-2,6-dimethylaniline compounds, having a structure according to formula (I). Said compounds may self-assemble into micelle or gel in an aqueous solvent, and exert an in vivo elongated local anesthetic actions. Local anesthesia and/or analgesic activity can last more than 72 hours. The biomaterials can self-assemble into micelles or gels in water and have local anesthetic effect, as well as can further be used as the coating of medicinal bioactive molecules for treatment of pain, itching and the like and/or the drug carriers, together with as pharmaceutical adjuvants for delivery system. Thus, said materials have a favorable perspective.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: July 3, 2018
    Assignee: WEST CHINA HOSPITAL, SICHUAN UNIVERSITY
    Inventors: Lei Tang, Jin Liu, Wensheng Zhang, Jun Yang, Bowen Ke, Qinqin Yin
  • Patent number: 9999630
    Abstract: A traditional Chinese medicine composition for treating cardiovascular disease, and a preparation thereof, particularly a micro drop pill preparation thereof, and a method for preparing the preparation; the method for preparing the micro drop pill preparation can be used to prepare drop pills, coated drop pills, and drop pill capsules with a high drug loading capacity.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: June 19, 2018
    Assignee: Tasly Pharmaceutical Group Co., Ltd.
    Inventors: Xijun Yan, Naifeng Wu, Kaijing Yan, Zhengliang Ye, Shunnan Zhang, Lihong Zhou, Wensheng Zhang, Hai'ou Dong
  • Patent number: 9987320
    Abstract: A traditional Chinese medicine composition for treating cardiovascular disease, and a preparation thereof, particularly a micro drop pill preparation thereof, and a method for preparing the preparation; the method for preparing the micro drop pill preparation can be used to prepare drop pills, coated drop pills, and drop pill capsules with a high drug loading capacity.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: June 5, 2018
    Assignee: TASLY PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Xijun Yan, Naifeng Wu, Kaijing Yan, Zhengliang Ye, Shunnan Zhang, Lihong Zhou, Wensheng Zhang, Hai'ou Dong, Yongfeng Zheng, Lijun Fan
  • Patent number: 9969695
    Abstract: The present invention relates to an N-substituted imidazole carboxylic ester chiral compound containing an ether side chain and to its preparation and application. The structure of this compound is represented by Formula (I). This compound can induce a rapid and reversible general anesthesia effect. Animal experiments show that this compound has rapid and short-acting pharmacological characteristics, so that it can be used as a rapid and short-acting general anesthesia medicine. Compared with etomidate, this compound can reduce the inhibition on the synthesis of adrenal cortical hormone, with an advantage of rapid and full recovery of the post-operative patient. The only chiral carbon in the compound structure belongs to the R form.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: May 15, 2018
    Assignee: WEST CHINA HOSPITAL, SICHUAN UNIVERSITY
    Inventors: Wensheng Zhang, Jun Yang, Jin Liu, Lei Tang, Bowen Ke
  • Publication number: 20170204053
    Abstract: The present invention relates to long-chain dimethylaniline derivative compounds, their preparation methods, self-assembled texture, and uses thereof. Said compounds show ultralong acting anaesthetic effect, and belong to N-diethylaminoacetyl-2,6-dimethylaniline compounds, having a structure according to formula (I). Said compounds may self-assemble into micelle or gel in an aqueous solvent, and exert an in vivo elongated local anesthetic actions. Local anesthesia and/or analgesic activity can last more than 72 hours. The biomaterials can self-assemble into micelles or gels in water and have local anesthetic effect, as well as can further be used as the coating of medicinal bioactive molecules for treatment of pain, itching and the like and/or the drug carriers, together with as pharmaceutical adjuvants for delivery system. Thus, said materials have a favourable perspective.
    Type: Application
    Filed: July 22, 2015
    Publication date: July 20, 2017
    Inventors: Lei TANG, Jin LIU, Wensheng ZHANG, Jun YANG, Bowen KE, Qinqin YIN
  • Publication number: 20170157156
    Abstract: A traditional Chinese medicine composition for treating cardiovascular disease, and a preparation thereof, particularly a micro drop pill preparation thereof, and a method for preparing the preparation; the method for preparing the micro drop pill preparation can be used to prepare drop pills, coated drop pills, and drop pill capsules with a high drug loading capacity.
    Type: Application
    Filed: July 11, 2014
    Publication date: June 8, 2017
    Inventors: Xijun Yan, Naifeng Wu, Kaijing Yan, Zhengliang Ye, Shunnan Zhang, Lihong Zhou, Wensheng Zhang, Hai'ou Dong
  • Publication number: 20170001963
    Abstract: The present invention relates to an N-substituted imidazole carboxylic ester chiral compound containing an ether side chain and to its preparation and application. The structure of this compound is represented by Formula (I). This compound can induce a rapid and reversible general anesthesia effect. Animal experiments show that this compound has rapid and short-acting pharmacological characteristics, so that it can be used as a rapid and short-acting general anesthesia medicine. Compared with etomidate, this compound can reduce the inhibition on the synthesis of adrenal cortical hormone, with an advantage of rapid and full recovery of the post-operative patient. The only chiral carbon in the compound structure belongs to the R form.
    Type: Application
    Filed: October 30, 2014
    Publication date: January 5, 2017
    Inventors: Wensheng ZHANG, Jun YANG, Jin LIU, Lei TANG, Bowen KE
  • Publication number: 20160184249
    Abstract: A traditional Chinese medicine composition and preparation thereof for treating cardiovascular diseases is provided. The traditional Chinese medicine composition consists of: by weight percentage, phenolic acid derivatives 30%˜80%, tanshinones 2%˜10% and saponins 15%˜60%.
    Type: Application
    Filed: August 28, 2014
    Publication date: June 30, 2016
    Applicant: Tasly Pharmaceutical Group Co., Ltd.
    Inventors: Xijun Yan, Naifeng Wu, Shunnan Zhang, Ping Li, Zhengliang Ye, Lihong Zhou, Lianwen Qi, Fenglian Zhang, Minchao Qi, Zhexuan Yang, Wei Sun, Jing Yu, Hua Yang, Peng Liu, Xiaohui Ma, Hai'ou Dong, Wensheng Zhang, Lanlan Zhang, Chenming Li
  • Publication number: 20160175336
    Abstract: A traditional Chinese medicine composition for treating cardiovascular disease, and a preparation thereof, particularly a micro drop pill preparation thereof, and a method for preparing the preparation; the method for preparing the micro drop pill preparation can be used to prepare drop pills, coated drop pills, and drop pill capsules with a high drug loading capacity.
    Type: Application
    Filed: July 11, 2014
    Publication date: June 23, 2016
    Inventors: Xijun Yan, Naifeng Wu, Kaijing Yan, Zhengliang Ye, Shunnan Zhang, Lihong Zhou, Wensheng Zhang, Hai'ou Dong
  • Patent number: 9360650
    Abstract: A laser alignment device with at least one movable mirror, a laser-target alignment sensor with movable mirrors and a laser alignment method are disclosed. The laser alignment device with the movable mirror comprises an image acquisition means for collecting incident lasers, a moveable mirror for reflecting the lasers to the image acquisition means and is operable to move linearly with respect to the image acquisition means, and a lens for forming an image of a target in the image acquisition means. The present disclosure achieves linear motion of the movable mirror with high accuracy in a small range, which in turn achieves fast and accurate alignment of the laser. It solves the problem of laser spots overlapping, reduces alignment time and improves shooting accuracy.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: June 7, 2016
    Assignee: INSTITUTE OF AUTOMATION, CHINESE ACADEMY OF SCIENCES
    Inventors: Baolin Wu, Wensheng Zhang, Yali Shi, Yinxing Hao, Haipeng Li, Qiulei Dong, Haoxing Wang, Zhengtao Zhang
  • Publication number: 20160151293
    Abstract: The present invention relates to a preparation method for a traditional Chinese medicine drop pill and a traditional Chinese medicine micro drop pill prepared by using the method, and in particular, the present invention relates to a micro drop pill preparation method with high drug-loading capacity, simple preparation process and high production rate and a micro drop pill prepared by using the method. Specially, The drop pill preparation method used comprises the following steps: (1) material melting step: heat melting a medicine and a drop pill matrix to obtain a molten medicine liquid; (2) dropping step: delivering the molten medicine liquid to a dripper, and acquiring medicine drops of the molten medicine liquid by means of vibration dropping; and, (3) condensation step: cooling the medicine drops with a cooling gas to obtain micro drop pills.
    Type: Application
    Filed: July 11, 2014
    Publication date: June 2, 2016
    Applicant: TASLY PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Xijun Yan, Naifeng Wu, Kaijing Yan, Xiaobing Sun, Shunnan Zhang, Zhengliang Ye, Hai'ou Dong, Hongbo Zhang, Wensheng Zhang, Lihong Zhou, Chenming Li, Cong Chen, Xiaofeng Liu, Shiqing Wang, Changsheng Rong, Yongfeng Zheng, Lijun Fan
  • Publication number: 20160143976
    Abstract: A traditional Chinese medicine composition for treating cardiovascular disease, and a preparation thereof, particularly a micro drop pill preparation thereof, and a method for preparing the preparation; the method for preparing the micro drop pill preparation can be used to prepare drop pills, coated drop pills, and drop pill capsules with a high drug loading capacity.
    Type: Application
    Filed: July 11, 2014
    Publication date: May 26, 2016
    Inventors: Xijun Yan, Naifeng Wu, Kaijing Yan, Zhengliang Ye, Shunnan Zhang, Lihong Zhou, Wensheng Zhang, Hai'ou Dong, Yongfeng Zheng, Lijun Fan
  • Patent number: 9272978
    Abstract: Hydroxy acid compound of substituted phenyl ester, preparation method and medical use thereof are provided. The title compound is shown in formula (I), Y?C1-4 straight carbon chain. The compound can release 2,6-diisopropylphenol rapidly under the action of enzymes in vivo, which has sedative, hypnotic and/or anesthetic effect. By protecting the hydroxyl group of 2, 6-diisopropylphenol in compound of formula (I), the first-pass metabolic activity of 2, 6-diisopropylphenol is reduced, so that the synthetic compound can be used for sedation, hypnosis, and/or anesthesia.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: March 1, 2016
    Assignee: West China Hospital, Sichuan University
    Inventors: Wensheng Zhang, Jun Yang, Jin Liu
  • Patent number: 9243009
    Abstract: Phosphate ester compound of hydroxy acid substituted phenyl ester, preparation method and medical use thereof are provided. The title compound is shown in formula (I), in which Y?C1-4 straight carbon chain, M1 and/or M2=H, alkali metal ion, protonated amine or protonated amino acid. The compound has good water solubility and high stability in its aqueous solution, and it can release 2,6-diisopropylphenol rapidly under the action of enzymes in vivo, which has the effects of sedation, hypnosis and/or anesthesia. By protecting hydroxyl of 2,6-diisopropylphenol in compound of formula (I), the first-pass metabolic activity of 2,6-diisopropylphenol is reduced, so that the synthetic compound can be used for sedation, hypnosis and/or anesthesia.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: January 26, 2016
    Assignees: West China Hospital, Sichuan University, Yichang Humanwell Pharmaceutical Co., Ltd.
    Inventors: Wensheng Zhang, Jun Yang, Jin Liu
  • Patent number: 9186421
    Abstract: Use of low dose streptozocin in the preparation of an animal model for screening drugs for treatment of antoimmune type 1 diabetes is disclosed, in which streptozocin is administrated intravenously at a dose of 15-30 mg/kg per time for 5 days and administrated again on the 7th day and 14th day after last time of offering drug. A method for preparing rhesus monkey model of autoimmune type 1 diabetes and autoimmune type 1 diabetes animal model obtained are also disclosed.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: November 17, 2015
    Assignee: West China Hospital, Sichuan University
    Inventors: Yanrong Lu, Jingqiu Cheng, Shaoping Deng, Younan Chen, Bole Tian, Gang Mai, Yan Ren, Li Wang, Hongxia Li, Lingling Wei, Xi Jin, Chaofeng Qiao, Wensheng Zhang, Sirong He, Li Zeng
  • Patent number: 9157811
    Abstract: A dispersion and loss spectrum auto-correction distributed optical fiber Raman temperature sensor has a dual fiber pulsed laser module with dual Raman wavelength shifts. The laser module is composed of a power supply (11), an electronic switch (12), a primary laser (13) and a secondary laser (14), a first combiner (15), a bidirectional coupler (16), a multimode fiber (17), an integrated optical fiber wavelength division multiplexer (18), a second combiner (19), a direct detection system (20), a signal collection and processing system (21) and a display (22). The sensor uses two light sources that have two Raman wavelength shifts, wherein the central wavelength of backward anti-Stokes Raman scattering peak of the primary light source coincides with that of the backward Stokes scattering peak center wavelength of the secondary light source, and the time domain reflection signal of the one-way optical fiber Rayleigh scattering is deducted.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: October 13, 2015
    Assignee: CHINA JILIANG UNVIVERSITY
    Inventors: Zaixuan Zhang, Chenxia Li, Jianfeng Wang, Xiangdong Yu, Wensheng Zhang, Wenping Zhang, Xiaohui Niu
  • Publication number: 20150152522
    Abstract: A process for separating Co from Ni in an aqueous solution comprises subjecting the solution to extraction and using kinetic differences between Ni and Co in the extraction for achieving at least a partial separation of Co from Ni. This is effected by controlling the duration of the extraction so that a major portion of Co and a minor portion of Ni is extracted from the solution to produce a loaded extractant, enriched in Co and depleted in Ni compared to the feed solution, and a Co-depleted raffinate containing Ni. In a further embodiment, the invention utilizes kinetic differences between Ni and Co during striping for effecting separation of Ni and Co. The loaded extractant can be subjected to a bulk stripping or a selective stripping operation to obtain Co and Ni solutions from which Ni and Co can be recovered. The process may be incorporated in a hydrometallurgical process for the extraction of Ni and/or Co from an ore or concentrate containing Ni and Co.
    Type: Application
    Filed: February 11, 2015
    Publication date: June 4, 2015
    Inventors: David Llewellyn Jones, Tannice Marie McCoy, Keith Edward Mayhew, Chu Yong Cheng, Keith Raymond Barnard, Wensheng Zhang
  • Patent number: 8979976
    Abstract: A process for separating Co from Ni in an aqueous solution comprises subjecting the solution to extraction and using kinetic differences between Ni and Co in the extraction for achieving at least a partial separation of Co from Ni. This is effected by controlling the duration of the extraction so that a major portion of Co and a minor portion of Ni is extracted from the solution to produce a loaded extractant, enriched in Co and depleted in Ni compared to the feed solution, and a Co-depleted raffinate containing Ni. In a further embodiment, the invention utilizes kinetic differences between Ni and Co during striping for effecting separation of Ni and Co. The loaded extractant can be subjected to a bulk stripping or a selective stripping operation to obtain Co and Ni solutions from which Ni and Co can be recovered. The process may be incorporated in a hydrometallurgical process for the extraction of Ni and/or Co from an ore or concentrate containing Ni and Co.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: March 17, 2015
    Assignees: CESL Limited, Commonwealth Scientific and Industrial Research Organisation
    Inventors: David Llewellyn Jones, Tannice Marie McCoy, Keith Edward Mayhew, Chu Yong Cheng, Keith Raymond Barnard, Wensheng Zhang