Abstract: The present invention provides a polymeric mitral heart valve. The polymeric mitral heart valve includes leaflets, a stent frame, and an annulus; the stent frame has a hollow cylindrical structure, and the stent frame includes a first end and a second end; the first end is arranged with three circumferentially spaced strut peaks, with strut valleys formed correspondingly; the annulus is arranged on the outer periphery of the second end of the stent frame, and the annulus forms two protruding sections axially toward the first end at positions circumferentially corresponding to two of the strut peaks and a planar section at the remaining one strut peak. The polymeric mitral heart valve provided by the present invention adopts optimized structures of the annulus and the stent frame, thereby improving the adaptability between the annulus and the native annulus, and enhancing the radial supporting force of the stent frame.

Abstract: Provided by the present invention is an expandable polymeric heart valve. The expandable polymeric heart valve comprises valve leaflets and a valve frame. The valve frame has a hollow cylindrical structure. The valve further comprises an insert adapted to be embedded in the valve frame along an axial direction. The insert is provided with at least one expansion groove in a circumferential direction. The expansion groove has a closed state and an open state. The insert is provided with a limiting structure at an outer wall of the two ends of the expansion groove. The limiting structure defines an expansion width when the expansion groove is in the open state. The present invention achieves expansibility after valve damage while ensuring blood flow properties in the original state of normal use of the valve.

Abstract: The present disclosure provides a potting method of a coreless motor, a potting tooling thereof, and a coreless motor. Wherein the potting method includes the steps of providing a stator assembly and a housing, wherein the housing is sleeved on an outer wall of the stator assembly; providing a potting tooling, wherein the potting tooling includes a first potting fixture and a second potting fixture; inserting the first potting fixture into one end of the housing in an axial direction and inserting the second potting fixture into the other end of the housing in an axial direction to form a potting space; injecting glue into the potting space to form an encapsulation layer to encapsulate the stator assembly on the inner wall of the housing. With the potting method of the present disclosure, so as to improve the stability of the stator assembly in the potting process.

Abstract: The present disclosure provides a potting method of a coreless motor, a potting tooling thereof, and a coreless motor. Wherein the potting method includes the steps of providing a stator assembly and a housing, wherein the housing is sleeved on an outer wall of the stator assembly; providing a potting tooling, wherein the potting tooling includes a first potting fixture and a second potting fixture; inserting the first potting fixture into one end of the housing in an axial direction and inserting the second potting fixture into the other end of the housing in an axial direction to form a potting space; injecting glue into the potting space to form an encapsulation layer to encapsulate the stator assembly on the inner wall of the housing. With the potting method of the present disclosure, so as to improve the stability of the stator assembly in the potting process.