US 11,684,375 B2
Ultrasonic osteotome bit
Qun Cao, Beijing (CN); Xiaoming Hu, Beijing (CN); and Chunyuan Li, Beijing (CN)
Assigned to BEIJING SMTP TECHNOLOGY CO., LTD., Beijing (CN)
Appl. No. 16/651,950
Filed by BEIJING SMTP TECHNOLOGY CO., LTD., Beijing (CN)
PCT Filed Aug. 12, 2018, PCT No. PCT/CN2018/100140
§ 371(c)(1), (2) Date Mar. 27, 2020,
PCT Pub. No. WO2019/062348, PCT Pub. Date Apr. 4, 2019.
Claims priority of application No. 201710908425.6 (CN), filed on Sep. 29, 2017.
Prior Publication US 2020/0305892 A1, Oct. 1, 2020
Int. Cl. A61B 17/16 (2006.01)
CPC A61B 17/1615 (2013.01) [A61B 17/1644 (2013.01); A61B 2017/1651 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An ultrasonic osteotome bit for cutting bones, comprising a bit bar, a bit body and a bit tip, with a first end of the bit bar being connected to the bit tip, and a second end of the bit bar being connected to the bit body, wherein:
the bit tip is of a straight prism or substantially straight prism shape with a cross section of a polygonal shape, and
the bit tip has at least two cutting faces with different cutting widths, which are formed by at least one side face of the straight prism or substantially straight prism shape and through which the ultrasonic osteotome bit is operable to generate at least two incisions of different widths in a cutting object, wherein the at least two cutting faces extend from a foremost end face of the bit tip towards the bit bar, and wherein a shortest distance among distances between respective opposite sides of the polygonal shape is not equal to a longest distance among distances between respective opposite sides of the polygonal shape, and the two opposite sides having the shortest distance are perpendicular to the two opposite sides having the longest distance so that the bit tip has at least two cutting widths.