Patents by Inventor Anning Li
Anning 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: 10342549Abstract: A lung volume-reducing elastic implant (2) and a lung volume-reducing instrument; the lung volume-reducing elastic implant (2) is tubular and comprises a proximal implant end (201), an elastic deformation part (205) and a distal implant end (202); the elastic deformation part (205) is located between the proximal implant end (201) and the distal implant end (202), and the elastic deformation part (205) has a shape memory characteristic; the lung volume-reducing elastic implant (2) is opened at the proximal implant end (201); the elastic deformation part (205) is provided with a plurality of grooves (204) at intervals along the longitudinal direction thereof; each groove (204) communicates with the tube cavity of the elastic deformation part (205); the lung volume-reducing instrument comprises the lung volume-reducing elastic implant (2) and a delivery device (1) matching same; the delivery device (1) comprises a guidewire (101) and a hollow push piece (110); the lung volume-reducing elastic implant (2) is detType: GrantFiled: May 29, 2015Date of Patent: July 9, 2019Assignee: Lifetech Scientific (Shenzhen) Co. Ltd.Inventors: Weilin Lin, Siyi Li, Anning Li
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Patent number: 10258343Abstract: A left atrial appendage occluder comprises an elastic closure disc, and a supporting structure connecting with the closure disc and being located on one side of the closure disc, with the supporting structure comprising a central end connecting with the closure disc and a plurality of interconnected and bent struts, wherein at least one anchoring thorn is set near the end of at least one strut with the anchoring thorn toward the closure disc. The left atrial appendage occluder has a stable structure, a good positioning and sealing effect on the cavity wall in the left atrial appendage, and it is easy to position repeatedly; it can also be recycled before separating from a conveyor. When in surgical operation, the left atrial appendage occluder can select the position area based on the actual shape and size of the patient's left atrial appendage, so the surgical risk is lowered.Type: GrantFiled: October 27, 2015Date of Patent: April 16, 2019Assignee: Lifetech Scientific (Shenzhen) Co. Ltd.Inventors: Anning Li, Deyuan Zhang
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Publication number: 20190021711Abstract: A left atrial appendage occluder, including a closure disc and a bracket connected to the closure disc; the closure disc includes a frame; the frame includes a proximal-end disc face and a distal-end disc face; the proximal-end disc face includes flexible proximal-end support rods arranged radially; the distal-end disc face includes flexible distal-end support rods arranged radially; the floating end of each of the flexible proximal-end support rods is connected to the floating end of the adjacent flexible distal-end support rod The flexible proximal-end support rod at the point of largest diameter of the closure disc is arranged independent of the distal-end support rod; thus the degree of freedom of deformation at the point of largest diameter of the closure disc is increased, ensuring that the outer edge of the closure disc may adapt to fit the openings of various irregular left atrial appendages.Type: ApplicationFiled: June 20, 2016Publication date: January 24, 2019Applicant: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD.Inventor: Anning LI
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Publication number: 20190015109Abstract: Provided is a left atrial appendage occluder, including a closure disc, a bracket located on one side of the distal end of the closure disc, and a connecting member connecting the closure disc and the bracket. The bracket includes a frame structure; the frame structure includes a proximal-end side face and a support circumferential surface connected to the proximal-end side face and extending from the proximal-end side face to the distal end. The connecting member is connected to the proximal-end side face. In the left atrial appendage occluder, the bracket is arranged such that one end having at least two support rods is closed, and the other end has an open structure, thus ensuring adequate supporting force for the bracket; at the same time, the support rods have a certain degree of independence with respect to each other.Type: ApplicationFiled: June 20, 2016Publication date: January 17, 2019Applicant: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTDInventor: Anning LI
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Publication number: 20190008495Abstract: A left atrial appendage occluder, including a closure disc , a bracket located on one side of the closure disc, and a connecting member connecting the closure disc and the bracket; the bracket includes a first fixing connection member, a second fixing connection member, and a number of support rods; the first ends of the plurality of support rods are collapsed and secured by the first fixing connection member; the second ends of the plurality of support rods are collapsed and secured by the second fixing connection member; a connecting member is connected to the first fixing connection member. The bracket is arranged such that the two ends constituted by at least two support rods have a closed structure, thus increasing the area of contact between the outer surface of the bracket and the left atrial appendage.Type: ApplicationFiled: June 17, 2016Publication date: January 10, 2019Applicant: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD.Inventor: Anning LI
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Publication number: 20190009057Abstract: An interventional medical system (10) comprises an instrument (100) provided with a plug head (120) and a delivery cable (200) provided with a cable head (211), and further comprises a locking sleeve (300) movably sleeved onto the delivery cable (200). The cable head (211) comprises at least one resilient locking piece (123) extending approximately away from a central axis of the cable head (211). When under a radial restraint applied by the locking sleeve (300), the plug head (120) abuts the locking piece (123) such that the plug head (120) is connected to the cable head (211), and when the locking sleeve (300) has moved relative to the delivery cable (200) such that the locking piece (123) is no longer radially restrained, the locking piece (123) elastically moves away from the plug head (120) such that the instrument (100) is separated from the delivery cable (200).Type: ApplicationFiled: June 29, 2016Publication date: January 10, 2019Applicant: Lifetech Scientific (Shenzhen) Co., Ltd.Inventors: Siyi LI, Anning LI
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Publication number: 20180333157Abstract: Disclosed are a lung volume reduction elastic implant and a lung volume reduction device, wherein the lung volume reduction elastic implant (500) is tubular and at least opens at the proximal end thereof, and comprises an elastic deformation section (51), a flexible guide section (53) connected to the distal end of the elastic deformation section (51), and a protuberance (571) connected to the proximal end of the elastic deformation section (51), wherein the elastic deformation section (51) has shape memory characteristics and has several grooves (514) arranged at intervals along the length direction, each groove (514) connecting with the lumen of the elastic deformation section (51).Type: ApplicationFiled: June 29, 2016Publication date: November 22, 2018Applicant: Lifetech Scientific (Shenzhen) Co., Ltd.Inventors: Anning LI, Siyi LI
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Publication number: 20180303593Abstract: A lung-volume-reduction elastic implant (500) is tubular and at least the proximal end of the implant has an opening. The implant (500) comprises an elastic deforming part (51) and a flexible guiding part (53) connected to the distal end of the elastic deforming part (51). The elastic deforming part (51) has a shape memory property. The elastic deforming part (51) is provided in the lengthwise direction thereof with several slots (514) at intervals, wherein each slot (514) communicates with the tubular cavity of the elastic deforming part (51). Under the same externally applied force, the flexible guiding part (53) deforms more easily than the elastic deforming part (51). An implant delivering instrument (600) comprises an implant (500) and a matching delivering means (700). The delivering means (700) comprises a core wire (71) and a hollow pushing member (73). The implant (500) is detachably connected to the distal end of the pushing member (73) by means of the proximal end of the implant.Type: ApplicationFiled: June 29, 2016Publication date: October 25, 2018Applicant: Lifetech Scientific (Shenzhen) Co., Ltd.Inventors: Anning LI, Siyi LI
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Publication number: 20180271538Abstract: A left atrial appendage occluder includes a sealing plate, a fixing plate, and a connection member connecting the sealing plate and the fixing plate. The connection member is a silk woven structure. A radial deformability of the sealing plate is greater than a radial deformability of the fixing plate, and/or an axial deformability of the sealing plate is greater than an axial deformability of the fixing plate. In the left atrial appendage occluder, the fixing plate and the sealing plate are connected via the connection member of the silk woven structure, such that a distance between the fixing plate and the sealing plate and an angle formed thereby are both adjustable to adapt to a left atrial appendage having a large bending angle or requiring the fixing plate to remain at an increased distance to the sealing plate, thereby reducing the risk of failed occlusion.Type: ApplicationFiled: August 1, 2016Publication date: September 27, 2018Applicant: LIFETECH SCIENTIFIC (SHENZHEN ) CO., LTDInventor: Anning LI
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Publication number: 20180132860Abstract: A lung volume-reducing elastic implant (2) and a lung volume-reducing instrument; the lung volume-reducing elastic implant (2) is tubular and comprises a proximal implant end (201), an elastic deformation part (205) and a distal implant end (202); the elastic deformation part (205) is located between the proximal implant end (201) and the distal implant end (202), and the elastic deformation part (205) has a shape memory characteristic; the lung volume-reducing elastic implant (2) is opened at the proximal implant end (201); the elastic deformation part (205) is provided with a plurality of grooves (204) at intervals along the longitudinal direction thereof; each groove (204) communicates with the tube cavity of the elastic deformation part (205); the lung volume-reducing instrument comprises the lung volume-reducing elastic implant (2) and a delivery device (1) matching same; the delivery device (1) comprises a guidewire (101) and a hollow push piece (110); the lung volume-reducing elastic implant (2) is detType: ApplicationFiled: May 29, 2015Publication date: May 17, 2018Applicant: Lifetech Scientific (Shenzhen) Co., Ltd.Inventors: Weilin LIN, Siyi LI, Anning LI
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Publication number: 20170325824Abstract: A left atrial appendage occluder (200) comprises a sealing part (220), a fixing part (210) disposed at one side of the sealing part (220), and a connection part (230) for connecting the sealing part (220) and the fixing part (210). The radial deformation capacity of the sealing part (220) is greater than the radial deformation capacity of the fixing part (210), and/or, the axial deformation capacity of the sealing part (220) is greater than the axial deformation capacity of the fixing part (210). In the left atrial appendage occluder (200), the radial or axial deformation capacity of the sealing part (220) is configured to be greater than the radial or axial deformation capacity of the fixing part (210), thereby avoiding the situation in which the sealing part (220) is not optimally fitted with the opening of the left atrial appendage (10) when the fixing part (210) is placed inside of the left atrial appendage (10), which in turn enhances the occlusion effect.Type: ApplicationFiled: December 31, 2015Publication date: November 16, 2017Applicant: Lifetech Scientific (Shenzhen) Co., Ltd.Inventors: Anning LI, Zhuo CHEN
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Patent number: 9808253Abstract: The present invention relates to a Left atrial appendage occluder comprising an elastic closure disc. The left atrial appendage occluder also comprises an elastic fixing frame connected with the closure disc and located on one side of the closure disc. The fixing frame comprises a central end connected with the closure disc and a plurality of interconnected and bent struts, wherein at least one anchor is set near the end of at least one strut with the anchor pointing toward the closure disc. The left atrial appendage occluder has a stable structure, a good positioning and sealing effect on the cavity wall in the left atrial appendage, and it is easy to position repeatedly; it can also be recycled before separating from a conveyor. When in surgical operation, the left atrial appendage occluder can select the position area based on the actual shape and size of the patient's left atrial appendage, so the surgical risk is lowered.Type: GrantFiled: May 25, 2012Date of Patent: November 7, 2017Assignee: Lifetech Scientific (Shenzhen) Co. Ltd.Inventors: Anning Li, Deyuan Zhang
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Publication number: 20160287261Abstract: The present invention relates to a left atrial appendage occluder (10), comprising a sealing disc (100) and a fixing bracket (200) which is connected to the sealing disc (100) and located at one side of the sealing disc (100); the fixing bracket (200) comprising a connecting portion (210) connected to the sealing disc (100), and a plurality of supports (220); after radiating out distally from the connecting portion (210) and coordinating to form a recessed area (221), the plurality of supports (220) are bent to extend proximally to form a plurality of spaced suspended supporting segments (222), the supporting segment (222) being provided with at least one anchoring barb (223) facing the sealing disc (100). The left atrial appendage occluder (10) further comprises a thin film (300), all the supports (220) being connected in series through the thin film (300).Type: ApplicationFiled: November 7, 2014Publication date: October 6, 2016Applicant: Lifetech Scientific (Shenzhen) Co., Ltd.Inventors: Anning Li, Yixian Lin
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Publication number: 20160100844Abstract: A left atrial appendage occluder comprises an elastic closure disc, and a supporting structure connecting with the closure disc and being located on one side of the closure disc, with the supporting structure comprising a central end connecting with the closure disc and a plurality of interconnected and bent struts, wherein at least one anchoring thorn is set near the end of at least one strut with the anchoring thorn toward the closure disc. The left atrial appendage occluder has a stable structure, a good positioning and sealing effect on the cavity wall in the left atrial appendage, and it is easy to position repeatedly; it can also be recycled before separating from a conveyor. When in surgical operation, the left atrial appendage occluder can select the position area based on the actual shape and size of the patient's left atrial appendage, so the surgical risk is lowered.Type: ApplicationFiled: October 27, 2015Publication date: April 14, 2016Applicant: Lifetech Scientific (Shenzhen) Co., Ltd.Inventors: Anning Li, Deyuan Zhang
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Patent number: 9307999Abstract: An interventional medical device connector and a method for using same. The interventional medical device connector comprises an implant (1) and a pusher (5). One end of the implant (1) is provided with at least one lock ring (9). The top end of the pusher (5) is provided with at least one locking hole (7). The pusher (5) is provided with at least one control wire (4). The control wire (4) slides along the axial direction of the pusher (5), and the top end of the control wire (4) can reach at least one of the locking holes (7). The control wire (4), the lock ring (9) and the locking hole (7) together form a connection means having a lock-pin structure. Use of this means of connection effectively overcomes the defects of existing threaded connections, reduces risks, and provides convenience of use.Type: GrantFiled: August 20, 2011Date of Patent: April 12, 2016Assignee: Lifetech Scientific (Shenzhen) Co., Ltd.Inventors: Anning Li, Yilong Chen, Delong Zhang
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Publication number: 20140142612Abstract: A left atrial appendage occluder (100) comprises an elastic closure disc (11); the left atrial appendage occluder (100) also comprises a supporting structure (111) connecting with the closure disc (11) and being located on one side of the closure disc, with the supporting structure (111) comprising a central end connecting with the closure disc and a plurality of interconnected and bent struts (121), wherein at least one anchoring thorn (131) is set near the end of at least one strut (121) with the anchoring thorn (131) toward the closure disc (11). The left atrial appendage occluder has a stable structure, a good positioning and sealing effect on the cavity wall in the left atrial appendage, and it is easy to position repeatedly; it can also be recycled before separating from a conveyor. When in surgical operation, the left atrial appendage occluder can select the position area based on the actual shape and size of the patient's left atrial appendage, so the surgical risk is lowered.Type: ApplicationFiled: May 25, 2012Publication date: May 22, 2014Applicant: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD.Inventors: Anning Li, Deyuan Zhang
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Publication number: 20130150879Abstract: An interventional medical device connector and a method for using same. The interventional medical device connector comprises an implant (1) and a pusher (5). One end of the implant (1) is provided with at least one lock ring (9). The top end of the pusher (5) is provided with at least one locking hole (7). The pusher (5) is provided with at least one control wire (4). The control wire (4) slides along the axial direction of the pusher (5), and the top end of the control wire (4) can reach at least one of the locking holes (7). The control wire (4), the lock ring (9) and the locking hole (7) together form a connection means having a lock-pin structure. Use of this means of connection effectively overcomes the defects of existing threaded connections, reduces risks, and provides convenience of use.Type: ApplicationFiled: August 20, 2011Publication date: June 13, 2013Applicant: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD.Inventors: Anning Li, Yilong Chen, Delong Zhang
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Publication number: 20070276688Abstract: Interactive resource competition ranks resource users using coefficients of performance (CoP). Resource users compete for a target resource and each offer a quantifiable reciprocal resource in exchange for using the target resource. A trigger frequency of a predetermined action with respect to the target resource is recorded, and the CoP based on the respective reciprocal resource value and the trigger frequency is determined. The target resource is then allocated based on the ranking of the CoP's. An intermediate and credit fund account is used for both making payments and recording the trigger frequency. The competition is particularly useful for allocating an information display position in online electronic marketing.Type: ApplicationFiled: May 8, 2007Publication date: November 29, 2007Applicant: ALIBABA.COM CORPORATIONInventors: Tongyu Sun, Yulei Wang, Dong Chai, Peng Jiang, Anning Li, Jianfeng Zhang, Lijuan Chen