Abstract: A prosthesis (100) for preventing a valve regurgitation, comprising a fixation unit (110), a connection piece (120) and a closure assisting piece (130); the fixation unit (110) comprises a fixation piece (111) and an anchor (112); the connection piece (120) is flexible, and a distal section thereof is connected to a proximal section of the fixation piece (111), and a proximal section thereof is connected to a distal section of the closure assisting piece (130); the fixation piece (111) is fixed on the atrial wall or a valve ring of a patient via the anchor (112); the deployed width of the fixation piece (111) is less than two-thirds of the circumference of a valve tissue annulus; the closure assisting piece (130) is located between autologous valve leaflets of the patient when in a free state; the maximum width of the closure assisting piece (130) is less than the maximum deployed width of a single autologous valve leaflet; and the proximal end of the anchor (112) is provided with an anti-disengagement end (1

Abstract: The present disclosure relates to a vertebral balloon dilation system, comprising a rigid pushing tube (2), a balloon (1) made of membrane material and fixedly connected with a sealing head (11), a sleeve tube (3) sleeved on the pushing tube (2) and the balloon (1), and a liner core (4) slidably inserted into the pushing tube (2). When the vertebral balloon dilation system is operated, the sleeve tube (3) slides axially towards the proximal end of the pushing tube (2), and the balloon (1) is exposed. According to the present disclosure, the balloon (1) can be fed to the center or to the opposite side of the vertebral body simply by puncturing at only one side without drilling out a cavity in advance, thus simplifying surgical procedures, shortening duration of surgery, reducing the incidence of complications, alleviating the pain of patients and reducing the economic burden of patients.

Abstract: A bone idler implanting system comprises a bag (1) and a delivery device (2). A distal end of the bag (1) is fixedly connected to a sealing head (11); the sealing head is closed at its distal end and has a blind hole (111) at its proximal end, and the blind hole (11) has an opening towards the interior of the bag (1). The bag (1) has micro-pores (12). The delivery device (2) comprises a liner core (23), a delivery tube (21), and a sleeve tube (22). The delivery tube (21) is a rigid tube, and a distal end of the delivery tube (21) is detachably connected to a. proximal end of the bag (1). When the delivery device (2) is operated, the sleeve tube (22) slides axially towards the proximal end of the conveying tube (21), and the bag (1) is exposed.

Abstract: A steerable cannula for delivering bone filler comprises a delivery pipe (10), a delivery handle (30) fixedly connected to the proximal end of the delivery pipe, a sheath-core (20) slidably inserted into the delivery pipe and a sheath-core handle (40) fixedly connected to the proximal end of the sheath-core. Distal portion of the delivery pipe is a flexible pipe (11) and proximal portion thereof is a rigid pipe (12). The sheath-core has a cavity. Distal portion of the sheath-core is a flexible segment (21) and the proximal portion thereof is a rigid segment (23). A pull thread is provided in the cavity of the sheath-core, wherein distal end of the pull thread is fixedly connected to the distal end of the flexible segment of the sheath-core and proximal end thereof is connected to a drawing means arranged on the sheath-core handle.

Abstract: The present invention relates to heart septal defect occlusion devices with adjustable length tether which can adapt the interseptal length of the device to the unique anatomy of the patient. The right disc as recited in the present invention is made from a double-deck metal mesh with contraction function, and the left disc is made from at least two skeletons covered by membranes. The two discs are active linked together. Because the connection of the two discs has gimbal function and the distance between the two discs may expand and contract suitably, the device can adapt to the unique anatomy of the patient. Therefore the two discs may attach to the heart valves closely and increase its closing ability. Furthermore it can reduce the thrombus and operate more easily.

Abstract: The present invention relates to heart septal defect occlusion devices with adjustable length tether which can adapt the interseptal length of the device to the unique anatomy of the patient. The right disc as recited in the present invention is made from a double-deck metal mesh with contraction function, and the left disc is made from at least two skeletons covered by membranes. The two discs are active linked together. Because the connection of the two discs has gimbal function and the distance between the two discs may expand and contract suitably, the device can adapt to the unique anatomy of the patient. Therefore the two discs may attach to the heart valves closely and increase its closing ability. Furthermore it can reduce the thrombus and operate more easily.