Patents by Inventor Zhongyu YAN
Zhongyu YAN 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: 11911062Abstract: A transducer for an ultrasonic scalpel, which comprises, from distal end to proximal end of a connecting feature, a fixing feature, a horn, a piezoelectric converting body, a rear-end ring, and a connecting member. By following a design principle of constraints in the parameter relationships between the piezoelectric converting body and the horn in the transducer, a transducer having both appropriate gain and stable performance can be achieved.Type: GrantFiled: July 2, 2018Date of Patent: February 27, 2024Assignee: INNOLCON MEDICAL TECHNOLOGY (SUZHOU) CO., LTD.Inventors: Zhongyu Yan, Lei Wang, Wei Luo
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Publication number: 20240050275Abstract: The present disclosure discloses a fluid collection box for phacoemulsification surgery, including a case composed of a front plate, a body, and a rear plate. The case communicates with a waste liquid bag. The body has a perfusion passage and a suction passage that are disposed independently. The perfusion passage is a sealed circulation cavity defined by a cover and the body. The circulation cavity communicates with a first connection port and a second connection port on the body for perfusion. There is a gap between the cover and the body. Connection and disconnection of the perfusion passage is controlled by pressing the cover. The suction passage is a pipeline that communicates a third connection port with the waste liquid bag, and performs perfusion by a peristaltic pump. The suction passage further communicates with a negative pressure regulating loop, to regulate pressure within the suction passage.Type: ApplicationFiled: May 19, 2022Publication date: February 15, 2024Applicant: Innolcon Medical Technology (Suzhou) Co., Ltd.Inventors: Xiaohe Yuan, Wei Luo, Zhongyu Yan, Zhenzhong Liu
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Patent number: 11786267Abstract: A frequency control method and system for an ultrasonic surgical tool. The frequency control method for an ultrasonic tool comprised: obtaining a maximum value of a phase difference between an operating voltage and an operating current of the ultrasonic surgical tool; determining whether the maximum value is less than zero, so as to obtain a first determination result; if the first determination result indicates that the maximum value is not less than zero, adjusting an operating frequency of the ultrasonic surgical tool to a frequency corresponding to the phase difference to zero; if the first determination result indicates that the maximum value is less than zero, subtracting a preset value from the maximum value to obtain a phase lock point; and adjusting, according to the phase lock point, the operating frequency of the ultrasonic tool.Type: GrantFiled: July 2, 2018Date of Patent: October 17, 2023Assignee: INNOLCON MEDICAL TECHNOLOGY (SUZHOU) CO., LTD.Inventors: Fuyuan Wang, Zhenzhong Liu, Zhongyu Yan, Wei Luo
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Publication number: 20230190525Abstract: An ultrasonic phacoemulsification handpiece with a sensor and a surge control system and a method. The central aspiration lumen of the ultrasonic phacoemulsification handpiece consists of two components of plug-in loose fit: a fixed lumen and an extension lumen; a small pressure sensor is mounted on the extension lumen, but still able to keep the easy-to-use size and maintain the ultrasonic performance of the handpiece. The extension lumen minimizes the effect of ultrasonic vibration on the sensor while maintaining sufficient stiffness for installing and removing the phacoemulsification tip. The design of the handpiece transducer reduces the effect of this sensor installation on the ultrasonic performance. For ultrasonic phacoemulsification cataract removal surgery, the short distance from the pressure sensor to the surgical site provides a technical solution for reliably controlling the risk of the post occlusion surge.Type: ApplicationFiled: April 13, 2020Publication date: June 22, 2023Inventors: Zhongyu YAN, Chunjie CHENG, Fuyuan WANG, Zhenzhong LIU, Hui WANG, Wei LUO
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Patent number: 11571235Abstract: An ultrasonic surgical blade, wherein the blade has a curved shape, and both sides of the blade are provided with cutting surfaces, one surface is a concave surface and the other surface is a convex surface. The thickness of the blade is gradually thinned along a cutting direction from a proximal end to a distal end. The concave surface length is set as L1, the radius of curvature R1; the length of the convex surface L2, the radius of curvature R2; the angle of the bending of the center line of the blade is ?; the diameter of the proximal end of the blade is D; the thickness of the most distal end surface of the blade is T. The relationship among them is: L1=L2+L2/1.5*(D?T)*SIN(?) (1), R1=R2+2T (2). The range of each size is adjustable within 10%. An ultrasonic wave guide and an ultrasonic scalpel using this blade have fewer potential resonant frequencies, so the thermal damage to the tissue is small, and the performance is more stable.Type: GrantFiled: July 2, 2018Date of Patent: February 7, 2023Assignee: INNOLCON MEDICAL TECHNOLOGY (SUZHOU) CO., LTD.Inventors: Zhongyu Yan, Lei Wang, Wei Luo
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Publication number: 20220287736Abstract: A reusable ultrasonic scalpel comprising a handle assembly and an ultrasonic waveguide extended to the distal end transmitting ultrasonic mechanical energy. Outside the ultrasonic waveguide is a sheath assembly, and the sheath assembly is detachably connected to the handle assembly by a quick connecting mechanism. The beneficial effects are mainly reflected on: reliable installation, easy to disassemble, easy to clean and disinfect. The sheath assembly serving as a consumable may be quickly replaced, while the remaining parts may be reused, and may undergo cleaning and high temperature steam sterilization.Type: ApplicationFiled: April 13, 2020Publication date: September 15, 2022Inventors: Ke LIU, Xiaohe YUAN, Zhenzhong LIU, Zhongyu YAN, Wei LUO
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Publication number: 20220249282Abstract: An ultrasonic aspiration and irrigation integrated device, comprising a housing, a horn placed inside the housing, an inner needle tube and an outer needle sleeve extended at the distal end of the housing, and the outer needle sleeve is attached to the outside of the inner needle tube. The bore inside the inner needle tube is part of an aspiration line, the gap between the inner wall of the outer needle sleeve and the outer wall of the inner needle tube is part of an irrigation line, and at the distal ends of the aspiration line and the irrigation line form a junction area. The distal front opening of the inner needle tube to make contact with the irrigation fluid, and the ultrasonic vibration at the inner needle tube distal end produces bubble cavity then explosion, i.e.Type: ApplicationFiled: April 13, 2020Publication date: August 11, 2022Inventors: Zhongyu YAN, Hui WANG, Chunjie CHENG, Wei LUO
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Publication number: 20200305922Abstract: An ultrasonic surgical blade, wherein the blade has a curved shape, and both sides of the blade are provided with cutting surfaces, one surface is a concave surface and the other surface is a convex surface. The thickness of the blade is gradually thinned along a cutting direction from a proximal end to a distal end. The concave surface length is set as L1, the radius of curvature R1; the length of the convex surface L2, the radius of curvature R2; the angle of the bending of the center line of the blade is ?; the diameter of the proximal end of the blade is D; the thickness of the most distal end surface of the blade is T. The relationship among them is: L1=L2+L2/1.5*(D?T)*SIN(?) (1), R1=R2+2T (2). The range of each size is adjustable within 10%. An ultrasonic wave guide and an ultrasonic scalpel using this blade have fewer potential resonant frequencies, so the thermal damage to the tissue is small, and the performance is more stable.Type: ApplicationFiled: July 2, 2018Publication date: October 1, 2020Inventors: Zhongyu YAN, Lei WANG, Wei LUO
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Publication number: 20200297375Abstract: A frequency control method and system for an ultrasonic surgical tool. The frequency control method for an ultrasonic tool comprised: obtaining a maximum value of a phase difference between an operating voltage and an operating current of the ultrasonic surgical tool; determining whether the maximum value is less than zero, so as to obtain a first determination result; if the first determination result indicates that the maximum value is not less than zero, adjusting an operating frequency of the ultrasonic surgical tool to a frequency corresponding to the phase difference to zero; if the first determination result indicates that the maximum value is less than zero, subtracting a preset value from the maximum value to obtain a phase lock point; and adjusting, according to the phase lock point, the operating frequency of the ultrasonic tool.Type: ApplicationFiled: July 2, 2018Publication date: September 24, 2020Inventors: Fuyuan WANG, Zhenzhong LIU, Zhongyu YAN, Wei LUO
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Publication number: 20200275947Abstract: A transducer for an ultrasonic scalpel, which comprises, from distal end to proximal end of a connecting feature, a fixing feature, a horn, a piezoelectric converting body, a rear-end ring, and a connecting member. By following a design principle of constraints in the parameter relationships between the piezoelectric converting body and the horn in the transducer, a transducer having both appropriate gain and stable performance can be achieved.Type: ApplicationFiled: July 2, 2018Publication date: September 3, 2020Inventors: Zhongyu YAN, Lei WANG, Wei LUO
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Publication number: 20200246187Abstract: Systems and methods are disclosed comprising an ultrasonic handpiece having a housing, a working tip extending from the distal end of the housing, and a crystal and horn assembly positioned within the housing. The proximal end of the ultrasonic horn is free to move relative to the housing. In embodiments, the ultrasonic horn is resiliently suspended within the housing, with no rigid fixation points. The ultrasonic horn may be resiliently suspended by one or more resilient rings at the proximal end of the ultrasonic horn and by one or more resilient rings at the single nodal region of the ultrasonic horn. The ultrasonic handpiece may include a pumping module located at the proximal end of the handpiece.Type: ApplicationFiled: February 3, 2020Publication date: August 6, 2020Inventors: John Zhongyu Yan, John Morgan Bourne, Francisco Javier Ochoa
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Patent number: 10682255Abstract: This disclosure disclosed an ultrasonic needle and apparatus used for removal of the vitreous body and other tissues. An ultrasonic vitrectomy needle, comprising: a connector, a connected inner needle, and an outer sheath. The length of the outer sheath at the distal end is slightly longer than that of the inner needle; the sheath distal end is of blind with smooth surface, but there is an open cut at the side of the distal end used for aspirating the vitreous body.Type: GrantFiled: April 28, 2016Date of Patent: June 16, 2020Assignee: Innolcon Medical Technology (Suzhou) Co. LtdInventors: Zhongyu Yan, Wei Luo
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Patent number: 10603211Abstract: An ultrasonic phacoemulsification needle with improved safety and manufacturability, comprising: a metal connection body and a plastic needle in a splitting structure. The plastic needle is connected at the distal end of the metal connection body, and the metal connection body is connected to the distal end of an ultrasonic hand piece. The ultrasonic phacoemulsification needle employing a design of splitting the connection body and the needle alleviates the difficulties for manufacturing otherwise caused by the conventional phaco tip designs. It reduces the surgical costs from patients. In addition, the ultrasonic phacoemulsification needle using a plastic body reduces the likeliness of punctuating the capsule bag, which otherwise easily occurs in the metal needle case due to the extremely sharp rigid tip at the end of the needle, thus the risks of surgery are reduced and safety is improved.Type: GrantFiled: April 25, 2015Date of Patent: March 31, 2020Assignee: INNOLCON MEDICAL TECHNOLOGY (SUZHOU) CO. LTDInventors: Zhongyu Yan, Wei Luo
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Publication number: 20180256396Abstract: This disclosure disclosed an ultrasonic needle and apparatus used for removal of the vitreous body and other tissues. An ultrasonic vitrectomy needle, comprising: a connector, a connected inner needle, and an outer sheath. The length of the outer sheath at the distal end is slightly longer than that of the inner needle; the sheath distal end is of blind with smooth surface, but there is an open cut at the side of the distal end used for aspirating the vitreous body.Type: ApplicationFiled: April 28, 2016Publication date: September 13, 2018Inventors: Zhongyu YAN, Wei LUO
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Publication number: 20170189232Abstract: An ultrasonic phacoemulsification needle with improved safety and manufacturability, comprising: a metal connection body and a plastic needle in a splitting structure. The plastic needle is connected at the distal end of the metal connection body, and the metal connection body is connected to the distal end of an ultrasonic hand piece. The ultrasonic phacoemulsification needle employing a design of splitting the connection body and the needle alleviates the difficulties for manufacturing otherwise caused by the conventional phaco tip designs. It reduces the surgical costs from patients. In addition, the ultrasonic phacoemulsification needle using a plastic body reduces the likeliness of punctuating the capsule bag, which otherwise easily occurs in the metal needle case due to the extremely sharp rigid tip at the end of the needle, thus the risks of surgery are reduced and safety is improved.Type: ApplicationFiled: April 25, 2015Publication date: July 6, 2017Inventors: Zhongyu YAN, Wei LUO
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Publication number: 20160089268Abstract: An ophthalmic surgical hand piece comprises a driver coupled to a horn, a venturi pump with an inlet aspiration port and an outlet aspiration port, and a hand piece shell at least partially enclosing the driver, the horn, and the venturi pump. A needle is coupled to an end of the horn. A rigid, non-compliant aspiration path extends between the hollow needle and the outlet aspiration port. An aspiration pressure sensor measures a pressure in the aspiration path.Type: ApplicationFiled: September 30, 2014Publication date: March 31, 2016Inventors: JAMES Y. CHON, JOHN ZHONGYU YAN
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Patent number: 9283113Abstract: A surgical hand piece comprises a generally cylindrical horn with a flange on one end. The flange has a central hub and first and second protruding sections. First and second polarized piezoelectric crystals are held against the flange such that rotative or torsional motion is induced in the horn.Type: GrantFiled: May 22, 2014Date of Patent: March 15, 2016Assignee: Novartis AGInventors: James Chon, John Zhongyu Yan
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Publication number: 20150335483Abstract: A surgical hand piece comprises a generally cylindrical horn with a flange on one end. The flange has a central hub and first and second protruding sections. First and second polarized piezoelectric crystals are held against the flange such that rotative or torsional motion is induced in the horn.Type: ApplicationFiled: May 22, 2014Publication date: November 26, 2015Applicant: NOVARTIS AGInventors: JAMES CHON, JOHN ZHONGYU YAN