Patents by Inventor Wenjun Pu

Wenjun Pu 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).

  • Patent number: 11890182
    Abstract: A coated stent (100,200,300,400), comprises a coated unit (110,210,310,410), and an exposed unit (120,220,320,420) which is a ring-shaped structure and which is provided on the periphery (113,213,313) of an end portion (112,212,312) of the coated unit (110,210,310,410); the exposed unit (120,220,320,420) comprises an inward-tilting wave body (122,222,322,422), the inward-tilting wave body (122,222,322,422) comprising at least a first wave crest (122a,222a,322a) and a first wave rod (122c) connected to the first wave crest (122a,222a,322a); the position of the first wave crest (122a.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: February 6, 2024
    Assignee: Lifetech Scientific (Shenzhen) Co. Ltd.
    Inventors: Benhao Xiao, Wenjun Pu
  • Publication number: 20230218417
    Abstract: A stent assembly system and a stent assembly method are provided. The stent assembly system includes a stent and an assembly instrument; the assembly instrument is configured to assemble and deliver the stent, and includes a sheath core tube, an outer sheath tube, and an assembly part; the outer sheath tube slidably surrounds the sheath core tube in an axial direction; an accommodating cavity for accommodating the stent is formed between the inner wall of the outer sheath tube and the outer wall of the sheath core tube; the assembly part has a fixed end and a free end opposite to the fixed end, and the fixed end is connected to the sheath core tube; and when the stent is crimped radially on the sheath core tube, the free end is hooked to the stent to limit the stent.
    Type: Application
    Filed: March 24, 2021
    Publication date: July 13, 2023
    Applicant: Shenzhen Lifetech Endovascular Medical Co., Ltd.
    Inventors: Wenjun Pu, Benhao Xiao, Qiang Liu, Zhengqing Ling
  • Publication number: 20230129898
    Abstract: A stent delivery device (110) and a stent delivery system (100) are provided. The stent delivery device (110) includes a sheath core tube (112), an outer sheath tube (113) and an assembly (118). The outer sheath tube (113) is slidably provided on and surrounds the sheath core tube (112) in an axial direction, and an accommodating cavity (116) for accommodating a stent (120) is formed between the inner wall of the outer sheath tube (113) and the outer wall of the sheath core tube (112). The assembly (118) has a fixed end and a free end opposite to the fixed end. The fixed end is connected to the sheath core tube (112). When the stent (120) is radially pressed against the sheath core tube (112), the stent (120) is limited by the hooking of the free end to the stent (120). The stent delivery device (110) may improve the accuracy of assembly.
    Type: Application
    Filed: March 24, 2021
    Publication date: April 27, 2023
    Applicant: Shenzhen Lifetech Endovascular Medical Co., Ltd.
    Inventors: Benhao Xiao, Wenjun Pu
  • Publication number: 20220023074
    Abstract: A coated stent (100,200,300,400), comprises a coated unit (110,210,310,410), and an exposed unit (120,220,320,420) which is a ring-shaped structure and which is provided on the periphery (113,213,313) of an end portion (112,212,312) of the coated unit (110,210,310,410); the exposed unit (120,220,320,420) comprises an inward-tilting wave body (122,222,322,422), the inward-tilting wave body (122,222,322,422) comprising at least a first wave crest (122a,222a,322a) and a first wave rod (122c) connected to the first wave crest (122a,222a,322a); the position of the first wave crest (122a.
    Type: Application
    Filed: November 22, 2019
    Publication date: January 27, 2022
    Applicant: Shenzhen Lifetech Endovascular Medical Co., Ltd.
    Inventors: Benhao Xiao, Wenjun Pu
  • Patent number: 8701595
    Abstract: A pet food dispenser comprising a lid and a hopper bin. The lid fits over a loading opening of the hopper bin. A main section includes a base, and the main section includes a base cover having a hopper funnel and a hopper recess. An auger assembly has an intake opening and an output opening, and the auger assembly is removably cradled in the hopper recess. When the auger assembly is operating, an auger blade is formed as a helical screw that drives articles from the intake opening to the output opening. A motor mount has a motor, and the motor is mechanically connected to the auger assembly to drive the auger assembly. The motor mount is connected to the base. A microprocessor controls actuation of the motor.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: April 22, 2014
    Inventors: Samuel Zhihui Jin, Wenjun Pu
  • Publication number: 20130333622
    Abstract: A pet food dispenser comprising a lid and a hopper bin. The lid fits over a loading opening of the hopper bin. A main section includes a base, and the main section includes a base cover having a hopper funnel and a hopper recess. An auger assembly has an intake opening and an output opening, and the auger assembly is removably cradled in the hopper recess. When the auger assembly is operating, an auger blade is formed as a helical screw that drives articles from the intake opening to the output opening. A motor mount has a motor, and the motor is mechanically connected to the auger assembly to drive the auger assembly. The motor mount is connected to the base. A microprocessor controls actuation of the motor.
    Type: Application
    Filed: June 15, 2012
    Publication date: December 19, 2013
    Inventors: Samuel Zhihui JIN, Wenjun PU
  • Patent number: 7164071
    Abstract: A keyboard instrument (e.g., an electronic piano) has a keyboard including numerous actions interlocked with numerous keys arranged on a keybed, and at least one pedal (e.g., damper pedal) arranged on a base board of a housing thereof, wherein it is equipped with a pedal link mechanism including a pedal lever. A keybed reinforcing member is attached to the lower surface of the keybed and is arranged to pivotally support the pedal lever thereunder, wherein a plurality of tapered spacers are put into the space between the keybed and the keybed reinforcing member, which are thus integrally fixed together using screws. One end of the pedal lever is interconnected with the pedal via a hanging bolt, and the other end is interconnected with a vertical link interlocked with at least one action.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: January 16, 2007
    Assignee: Yamaha Corporation
    Inventor: Wenjun Pu
  • Publication number: 20040099133
    Abstract: A keyboard instrument (e.g., an electronic piano) has a keyboard including numerous actions interlocked with numerous keys arranged on a keybed, and at least one pedal (e.g., damper pedal) arranged on a base board of a housing thereof, wherein it is equipped with a pedal link mechanism including a pedal lever. A keybed reinforcing member is attached to the lower surface of the keybed and is arranged to pivotally support the pedal lever thereunder, wherein a plurality of tapered spacers are put into the space between the keybed and the keybed reinforcing member, which are thus integrally fixed together using screws. One end of the pedal lever is interconnected with the pedal via a hanging bolt, and the other end is interconnected with a vertical link interlocked with at least one action.
    Type: Application
    Filed: November 18, 2003
    Publication date: May 27, 2004
    Inventor: Wenjun Pu