Abstract: A magnesium phosphate bone cement includes a powder agent and a liquid agent. A liquid-to-solid ratio of the liquid agent to the powder agent is 0.1-0.5 ml/g. The powder agent comprises following components: phosphate accounting for 32-70 wt %, magnesium oxide accounting for 28-65 wt %, and silicon-containing compound accounting for 1-15 wt %. Preferably, the powder agent further comprises ammonium dihydrogen phosphate, and degradable and adhesion-promoting material, wherein the ammonium dihydrogen phosphate accounts for 5-30 wt % of a total weight of the phosphate.

Abstract: An interspinous process bracing system comprises an interspinous process brace and a delivery device. The interspinous process brace includes a flexible and foldable bag, and a filler. An injection opening is provided at a proximal end of the bag. The delivery device comprises a delivery tube. A distal end of the delivery tube is detachably connected to the injection opening. The filler can be injected, through the delivery tube and the injection opening, into the bag to expand the bag, forming the interspinous process brace. The system achieves interspinous process bracing through a minimally invasive surgery and thereby reduces injuries.

Abstract: An interspinous process bracing system, comprising an interspinous process brace and a delivery device. The interspinous process brace includes a flexible and foldable bag (100), and a filler (200). An injection opening (110) is provided at a proximal end of the bag. The delivery device comprises a delivery tube (310). A distal end of the delivery tube (310) is detachably connected to the injection opening (110). The filler (200) can be injected, through the delivery tube (310) and the injection opening (110), into the bag to expand the bag, forming the interspinous process brace. The system achieves interspinous process bracing through a minimally invasive surgery and thereby reduces injuries.

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.