US 11,980,546 B1
Valve annulus contraction surgical system with adjustable annulus contracting force at single point
Fan Yang, Beijing (CN); Wei Zheng, Beijing (CN); and Wuen Han, Beijing (CN)
Assigned to CREATIVE MEDTECH (BEIJING) CO., LTD, Beijing (CN)
Filed by CREATIVE MEDTECH (BEIJING) CO., LTD, Beijing (CN)
Filed on Feb. 4, 2024, as Appl. No. 18/431,991.
Claims priority of application No. 202310523949.9 (CN), filed on May 11, 2023.
Int. Cl. A61F 2/24 (2006.01)
CPC A61F 2/2466 (2013.01) [A61F 2/2445 (2013.01); A61F 2220/0016 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A valve annulus contraction surgical system with an adjustable annulus contracting force at a single point,
comprising:
a plurality of anchors, wherein a suture locking tab is arranged on at least one of two sides of each of the anchors;
an implantation device configured to implant the anchors into a valve annulus;
a plurality of groups of locking sutures, wherein each group of locking sutures comprises a first locking suture and a second locking suture, one end of the first locking suture is connected to the suture locking tab of one of two adjacent anchors, and one end of the second locking suture is connected to the suture locking tab of the other of the two adjacent anchors; and
a suture locking device configured to lock and fix the other end of the first locking suture and the other end of the second locking suture, wherein the suture locking device comprises a suture locking apparatus and a suture locking operation handle; the suture locking apparatus is configured to lock and cut off the first locking suture and the second locking suture of the group of locking sutures under the driving of the suture locking operation handle;
the suture locking apparatus comprises a housing, a pressing assembly, and a cutting assembly; the pressing assembly, the cutting assembly and the suture locking operation handle are connected to one another in sequence; the suture locking operation handle is configured to drive the pressing assembly to lock the first locking suture and the second locking suture, and drive the cutting assembly to cut the first locking suture and the second locking suture; the housing is provided at one end with a first threaded hole, a first opening for entry of the first locking suture, and a second opening for the second locking suture to pass through, and at the other end with a third opening for the first locking suture and the second locking suture to extend out; the pressing assembly comprises a first stud and a locking suture pressing block; the first stud is connected to the first threaded hole, and is provided with a second threaded hole; the locking suture pressing block is sleeved on the first stud; the first stud is driven by the suture locking operation handle to rotate, such that the locking suture pressing block and an inner wall surface of the housing lock the first locking suture and the second locking suture; the cutting assembly comprises a second stud and a locking suture cutting block; the locking suture cutting block is rotatably sleeved on the second stud, and the second stud is connected to the second threaded hole; the suture locking operation handle drives the locking suture cutting block to rotate to cut the first locking suture and the second locking suture, and the suture locking operation handle drives the second stud to rotate such that the second stud and the locking suture cutting block are separated from the housing; a cross-sectional shape of a side of the locking suture cutting block that faces the third opening has a first annular tip; a side wall of the housing at the third opening is provided with a second annular tip facing the locking suture cutting block; and the suture locking operation handle is configured to drive the first annular tip to approach the second annular tip to a cutting position for performing rotary cutting.