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).

  • Publication number: 20240074762
    Abstract: 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: Application
    Filed: November 8, 2023
    Publication date: March 7, 2024
    Applicant: Lifetech Scientific (Shenzhen) Co., Ltd.
    Inventors: Anning Li, Zhuo Chen
  • Patent number: 11918228
    Abstract: A left atrial appendage (LAA) occluder includes a sealing portion and a fixing portion connected to the sealing portion, and one or more sealed seed sources encapsulated with radioactive particles. The sealed seed sources are arranged on the sealing portion and/or the fixing portion (20) and configured for forming an annular isolation band on an inner wall of an LAA after the radioactive particles are released. The annular isolation band is configured for blocking the electrical signal conduction between the LAA and a left atrium. In the LAA occluder, the annular isolation band is formed on the inner wall of the LAA by the release of the radioactive particles in the sealed seed sources arranged on the sealing portion and/or the fixing portion.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: March 5, 2024
    Assignee: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD.
    Inventors: Bing Yang, Anning Li, Shuo Shan
  • Publication number: 20240041468
    Abstract: An occlusion device includes a fixing portion with a plurality of supporting bodies; the plurality of supporting bodies include a plurality of supporting sections spaced apart along a circumferential direction of the fixing portion, where tail ends of at least two adjacent supporting sections bend and extend towards the interior of the fixing portion to form a convergence section, by which the tail ends of the at least two adjacent supporting sections are connected; the at least two adjacent supporting sections and the corresponding convergence section form a set of suspended sections, which are spaced and suspended along the circumferential direction of the fixing portion. The suspended sections can adaptively deform according to different internal tissue structures, and prevent a single supporting section from being locally deformed to a large extent, and buffer the supporting section.
    Type: Application
    Filed: November 16, 2022
    Publication date: February 8, 2024
    Applicant: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD.
    Inventors: Anning LI, Jianyong LIU
  • Publication number: 20240016410
    Abstract: A measuring device includes a hollow catheter and a guide wire which is insertable into the hollow catheter, where a catheter developing structure is arranged on the catheter, a distance of the catheter developing structure from a distal end of the catheter being less than a length of diseased tissue; a guide wire developing structure is arranged on a distal end of the guide wire, and a scale mark zone is arranged on the guide wire, a proximal end of the catheter can enter into the scale mark zone; the scale mark zone is configured to directly or indirectly measure a distance between the proximal end of the catheter and the end portion of the guide wire, and further measure the length of the diseased tissue.
    Type: Application
    Filed: November 17, 2021
    Publication date: January 18, 2024
    Applicant: SHENZHEN LIFETECH RESPIRATION SCIENTIFIC CO., LTD.
    Inventors: Quan CHEN, AnNing LI
  • Patent number: 11871932
    Abstract: An occlusion device includes a sealing disc, and a fixing frame connected to the sealing disc and located on one side of the sealing disc. The fixing frame includes a connecting portion connected to the sealing disc and at least one supporting body. The at least one supporting body radiates from the connecting portion and extends towards a proximal end to form a plurality of supporting sections. The supporting section is provided with at least one first restraint portion. The fixing frame is provided with at least one second restraint portion. The occlusion device further includes at least one restraint member. The restraint member is connected to the first and second restraint portion so a portion of the restraint member between the first and second restraint portion generates a restraint force that restrains movement of at least the supporting section.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: January 16, 2024
    Assignee: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD.
    Inventors: Anning Li, Jianyong Liu
  • Patent number: 11812968
    Abstract: 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: Grant
    Filed: March 19, 2020
    Date of Patent: November 14, 2023
    Assignee: Lifetech Scientific (Shenzhen) Co. Ltd.
    Inventors: Anning Li, Zhuo Chen
  • Patent number: 11806019
    Abstract: The present invention relates to a left atrial appendage occluder having a sealing disc and a fixing bracket which is connected to the sealing disc and located at one side of the sealing disc; the fixing bracket comprising a connecting portion connected to the sealing disc, and a plurality of supports. After radiating out distally from the connecting portion, the plurality of supports are bent to extend proximally to form a plurality of spaced suspended supporting segments. The left atrial appendage occluder further includes a thin film, with all the supports being connected through the thin film.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: November 7, 2023
    Assignee: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD
    Inventors: Anning Li, Yixian Lin
  • Publication number: 20230320713
    Abstract: A plugging device, including a first part, and a second part connected to the first part. The first part or the second part includes a plurality of braiding filaments and a gathering member; portions of the braiding filaments that are close to one ends of the braiding filaments cooperate to form a disc face. The plugging device further includes a film member. The film member at least covers part of an outer surface of the disc face; the gathering member includes an inner sleeve and an outer sleeve, both of which are hollow and sleeved; and one end of each braiding filament and at least part of a gathering region of the film member are all fixed to the gathering member.
    Type: Application
    Filed: August 11, 2021
    Publication date: October 12, 2023
    Applicant: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD.
    Inventors: Anning LI, Jianyong LIU, Yuhua TANG, Jia JIA
  • Publication number: 20230285029
    Abstract: A left atrial appendage (LAA) occluder includes a sealing portion and a fixing portion connected to the sealing portion, and one or more sealed seed sources encapsulated with radioactive particles. The sealed seed sources are arranged on the sealing portion and/or the fixing portion (20) and configured for forming an annular isolation band on an inner wall of an LAA after the radioactive particles are released. The annular isolation band is configured for blocking the electrical signal conduction between the LAA and a left atrium. In the LAA occluder, the annular isolation band is formed on the inner wall of the LAA by the release of the radioactive particles in the sealed seed sources arranged on the sealing portion and/or the fixing portion.
    Type: Application
    Filed: November 25, 2020
    Publication date: September 14, 2023
    Applicant: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD.
    Inventors: Bing YANG, Anning LI, Shuo SHAN
  • Patent number: 11717427
    Abstract: A conveyor for an implant having at least one cavity, including a conveying handle, a conveying cable, and a core wire. The conveying cable is a tubular body, a proximal end of the core wire is connected to the conveying handle, and a distal end of the core wire penetrates a distal end of the conveying cable from a proximal end of the conveying cable; a first control is provided on the conveying handle, and when the implant is connected to the distal end of the conveying cable, the first control controls the distal end of the core wire to extend into the implant to straighten the curved implant, or the first control controls the core wire to withdraw from the implant to restore the implant to a preset shape. The conveyor can load and release the implant on the conveyor, and be used in the entire implanting process.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: August 8, 2023
    Assignee: Shenzhen Lifetech Respiration Scientific Co., Ltd.
    Inventors: Shujun Li, Siyi Li, Anning Li
  • Publication number: 20230210537
    Abstract: An occluding device includes a sealing disc. The sealing disc includes a proximal disc surface and a distal disc surface, as well as an edge connecting the proximal disc surface and the distal disc surface. The sealing disc is provided with at least one buffer member. The at least one buffer member is distributed along the edge. The occluding device can reduce the damage inflicted on internal tissues caused by the edge of the sealing disc, better protect the internal tissues and reduce the risk of surgery.
    Type: Application
    Filed: October 10, 2020
    Publication date: July 6, 2023
    Applicant: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD.
    Inventors: Anning LI, Jianyong Liu
  • Publication number: 20230028589
    Abstract: A delivery sheath and a medical device. The delivery sheath includes an outer canal and a traction structure. The outer canal includes a connecting canal, a canal body, and a distal canal. The canal body is located between the connecting canal and the distal canal. The canal body includes a first flexible canal, a spacer canal, and a second flexible canal. The spacer canal is provided between a distal end of the first flexible canal and a proximal end of the second flexible canal. The hardness of the connecting canal is greater than that of the first and second flexible canals, and the hardness of the spacer canal is greater than that of the first and second flexible canals. The traction structure includes a first traction fiber and a second traction fiber.
    Type: Application
    Filed: November 6, 2020
    Publication date: January 26, 2023
    Applicant: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD.
    Inventors: Anning LI, Longhu HU, Huiqiang TANG, Cui WANG
  • Patent number: 11547417
    Abstract: 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: Grant
    Filed: April 2, 2019
    Date of Patent: January 10, 2023
    Assignee: Lifetech Scientific (Shenzhen) Co. Ltd.
    Inventors: Anning Li, Deyuan Zhang
  • Publication number: 20230001150
    Abstract: A medical apparatus system (1000) is provided, including a medical apparatus (100) and a fixing plate (900) for fixing the medical apparatus (100). A fixing member (901, 902, 903, 1003, 1004) is formed by cutting along a trajectory (904) on the fixing plate (900); the fixing member (901, 902, 903, 1003, 1004) includes a free end (908, 9031, 10032, 10042) and a connection end (907, 9035, 10031, 10041); the connection end (907, 9035, 10031, 10041) is connected to a fixing plate body (990); the free end (908, 9031, 10032, 10042) can protrude from a plane at which the fixing plate body (990) is located. The fixing member (901, 902, 903, 1003, 1004) can surround an outer surface of the medical apparatus (100) to fix the medical apparatus (100); or the medical apparatus (100) can pass through the fixing member (901, 902, 903, 1003, 1004) and be fixed. The trajectory (904) includes a starting end (905, 1007) and a terminating end (906, 1008).
    Type: Application
    Filed: October 26, 2020
    Publication date: January 5, 2023
    Applicant: Lifetech Scientific (Shenzhen) Co., Ltd.
    Inventors: Huiqiang Tang, Anning Li, Ge Shao
  • Publication number: 20220409255
    Abstract: A left atrial appendage (LAA) occluder and an occluding system are provided. The LAA occluder includes a sealing portion and an ablation portion arranged in the sealing portion, as well as a hollow proximal connector at a proximal end of the sealing portion. The ablation portion is connected to the proximal connector. The ablation portion is used to freeze an LAA after being injected with cryogen so as to form an annular isolation band on an inner wall of the LAA for blocking the conduction of electrical signals between the LAA and a left atrium.
    Type: Application
    Filed: December 15, 2020
    Publication date: December 29, 2022
    Applicant: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD.
    Inventors: Anning LI, Shuo SHAN
  • Publication number: 20220257259
    Abstract: An occlusion device includes a sealing disc, and a fixing frame connected to the sealing disc and located on one side of the sealing disc. The fixing frame includes a connecting portion connected to the sealing disc and at least one supporting body. The at least one supporting body radiates from the connecting portion and extends towards a proximal end to form a plurality of supporting sections. The supporting section is provided with at least one first restraint portion. The fixing frame is provided with at least one second restraint portion. The occlusion device further includes at least one restraint member. The restraint member is connected to the first and second restraint portion so a portion of the restraint member between the first and second restraint portion generates a restraint force that restrains movement of at least the supporting section.
    Type: Application
    Filed: June 29, 2020
    Publication date: August 18, 2022
    Applicant: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD.
    Inventors: Anning LI, Jianyong LIU
  • Patent number: 11291457
    Abstract: 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 det
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: April 5, 2022
    Assignee: Lifetech Scientific (Shenzhen) Co. Ltd.
    Inventors: Weilin Lin, Siyi Li, Anning Li
  • Patent number: 11266415
    Abstract: A lung volume reduction elastic implant (500) and a lung volume reduction instrument are provided. The lung volume reduction elastic implant (500) has an elastic deformation part (51), and a flexible guide (53, 53a) connected to the distal end of the elastic deformation part (51). The flexible guide (53, 53a) is provided with a first flexible part (531). The first flexible part (531) has an insert part (5312) and a distal part (5311). The insert part (5312) is connected to the distal end of the elastic deformation part (51). The distal end of the distal part (5311) of the first flexible part (531) is the distal end of the lung volume reduction elastic implant (500). The first flexible part (531) is internally provided with a radiograph component (56).
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: March 8, 2022
    Assignee: Shenzhen Lifetech Respiration Scientific Co. Ltd.
    Inventors: Anning Li, Siyi Li
  • Patent number: 11253241
    Abstract: 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: Grant
    Filed: June 17, 2016
    Date of Patent: February 22, 2022
    Assignee: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD.
    Inventor: Anning Li
  • Patent number: 11234705
    Abstract: An implant (500) comprises an elastic deformation portion (51) and a connection portion (52) connected with the proximal end (511) of the elastic deformation portion (51), wherein the elastic deformation portion (51) is covered by an elastic outer layer (55); the proximal end of the connection portion (52) is surrounded by a tightening ring (58); and the proximal end of the elastic outer layer (55) is covered by the tightening ring (58). Since the proximal end of the elastic outer layer (55) of the implant (500) is surrounded by a tightening ring (58), the elastic outer layer (55) is closely attached on the connecting portion (52) of the implant (500), such that the elastic outer layer (55) can be prevented from being rolled over from the surface of the implant (500) when the implant (500) is implanted, thereby improving safety of lung volume reduction surgery.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: February 1, 2022
    Assignee: Lifetech Scientific (Shenzhen) Co. Ltd.
    Inventors: Siyi Li, Liu Yang, Anning Li