US 12,478,387 B2
Screw placement system and vertebral pedicle screw placement device
Shengxiao Zhu, Shenzhen (CN); Linzhi Shi, Shenzhen (CN); Jiarui Chen, Shenzhen (CN); and Tao Zhang, Shenzhen (CN)
Assigned to SHENZHEN FUTURTEC MEDICAL CO., LTD., Shenzhen (CN)
Appl. No. 17/620,663
Filed by SHENZHEN FUTURTEC MEDICAL CO., LTD., Shenzhen (CN)
PCT Filed Jul. 6, 2020, PCT No. PCT/CN2020/100480
§ 371(c)(1), (2) Date Dec. 17, 2021,
PCT Pub. No. WO2022/006717, PCT Pub. Date Jan. 13, 2022.
Prior Publication US 2022/0354510 A1, Nov. 10, 2022
Int. Cl. A61B 17/17 (2006.01)
CPC A61B 17/17 (2013.01) 18 Claims
OG exemplary drawing
 
1. A vertebral pedicle screw placement device, comprising:
a bone drill mechanism, comprising:
a bone drill driving device; and
a clamping mechanism connected to and driven by the bone drill driving device; and
a depth advancing mechanism connected to the bone drill mechanism and used to generate linear reciprocating motion, comprising:
a lead screw assembly; comprising:
a ball screw; and
a lead screw nut;
a moving platform; and
a driving motor for driving the lead screw assembly;
wherein the driving motor is connected to and drives the ball screw, so that a linear reciprocating relative movement occurs between the lead screw nut and the ball screw; the lead screw nut is connected with the moving platform, and the bone drill mechanism is installed on the moving platform.