Abstract: An adjustment mechanism for adjusting a formed staple height of a suture staple in a stapler comprises a first handle portion and a second handle portion. The first handle portion comprises a cartridge support located at a distal end, a cartridge assembly, a drive assembly, and the adjustment mechanism for adjusting a formed staple height of a suture staple, and the second handle portion comprises an anvil located at a distal end. The cartridge assembly comprises suture staples, and the drive assembly can drive a suture staple to leave the cartridge assembly to reach the anvil to be pressed and formed. The adjustment structure adjusts a distance between the drive assembly and the anvil to adjust a formed staple height of a suture staple in a stapler. This application further relates to a stapler, comprising the adjustment mechanism for adjusting a formed staple height of a suture staple in a stapler.

Abstract: A waveguide rod for an ultrasonic scalpel having a relatively desirable amplitude and frequency comprises a proximal gain structure, a distal gain structure, an intermediate structure, and a frequency adjustment structure. The proximal gain structure and the intermediate structure are connected in a position near an antinode of longitudinal vibration of the waveguide rod through a proximal side gain step. The distal gain structure and the intermediate structure are connected in a position near an antinode of the longitudinal vibration of the waveguide rod through a distal side gain step. The intermediate structure comprises N (N>0, and N is an integer) gain holding structures that are connected two by two in a position near an antinode of the longitudinal vibration of the waveguide rod through an intermediate gain step. X (X>0, and X is an integer) frequency adjustment structures exist on the gain holding structure.

Abstract: A bending control mechanism includes a turning power input mechanism A, a turning transmission mechanism B, a locking mechanism C and a linear power output mechanism D; further, the turning power input mechanism A and the turning transmission mechanism B which are coaxially arranged have a relative rotating angle range in the circumferential direction; the turning power input mechanism A sequentially rotates in an angle I, an angle range II and an angle III while rotating relative to the turning transmission mechanism B from one end angle to the other end angle within a relative rotating angle range, wherein the angle I or the angle III corresponds to turning; the angle range II corresponds to a locking state. With the adoption of the mechanism, the problem of turning and fixing of the surgical instrument in a human body during surgery is solved, and the risk of surgery is reduced.

Abstract: A bending control mechanism includes a turning power input mechanism, a turning transmission mechanism, a locking mechanism and a linear power output mechanism. The turning power input mechanism and the turning transmission mechanism which are coaxially arranged have a relative rotating angle range in the circumferential direction; the turning power input mechanism sequentially rotates in an angle I, an angle range II and an angle III while rotating relative to the turning transmission mechanism from one end angle to the other end angle of a relative rotating angle range, wherein the angle I or the angle III corresponds to turning; the angle range II corresponds to a locking state. With the adoption of the mechanism, the problem of turning and fixing of the surgical instrument in a human body during surgery is solved, and the risk of surgery is reduced.

Abstract: An improved surgical apparatus actuator includes a nail bin assembly (1002), a nail anvil assembly (1001) connecting with the nail bin assembly (1002), and a drive assembly (1003) controlling the nail bin assembly (1002) and the nail anvil assembly (1001) to convert between opening and closing conditions. The nail anvil assembly (1001) includes a nail anvil plate (103) and a nail anvil seat (102), wherein the nail anvil plate (103) is provided on an inner side (1022) of the nail anvil seat (102), the nail anvil seat (102) has the structure, material and processing technology capable of providing high anti-bending performance, the nail anvil plate (103) is cold-punched from a thinner stainless steel sheet. Therefore, the processing difficulty of the components is reduced, and meanwhile, the ability of the actuator chuck to resist bending deformation is improved.

Abstract: A bending control mechanism includes a turning power input mechanism, a turning transmission mechanism, a locking mechanism and a linear power output mechanism. The turning power input mechanism and the turning transmission mechanism which are coaxially arranged have a relative rotating angle range in the circumferential direction; the turning power input mechanism sequentially rotates in an angle I, an angle range II and an angle III while rotating relative to the turning transmission mechanism from one end angle to the other end angle of a relative rotating angle range, wherein the angle I or the angle III corresponds to turning; the angle range II corresponds to a locking state. With the adoption of the mechanism, the problem of turning and fixing of the surgical instrument in a human body during surgery is solved, and the risk of surgery is reduced.