US 12,465,394 B2
Medical cutting assembly and volume reduction catheter system
Xingyu Wu, Shenzhen (CN); Han Long, Shenzhen (CN); and Zhenbiao Zhou, Shenzhen (CN)
Assigned to Lifetech Scientific (Shenzhen) Co. Ltd., Guangdong (CN)
Appl. No. 18/024,228
Filed by Lifetech Scientific (Shenzhen) Co. Ltd., Guangdong (CN)
PCT Filed Sep. 2, 2021, PCT No. PCT/CN2021/116163
§ 371(c)(1), (2) Date Mar. 1, 2023,
PCT Pub. No. WO2022/048586, PCT Pub. Date Mar. 10, 2022.
Claims priority of application No. 202010918066.4 (CN), filed on Sep. 3, 2020; application No. 202011639457.9 (CN), filed on Dec. 31, 2020; and application No. 202011642225.9 (CN), filed on Dec. 31, 2020.
Prior Publication US 2023/0263549 A1, Aug. 24, 2023
Int. Cl. A61B 17/3207 (2006.01); A61B 90/00 (2016.01)
CPC A61B 17/320783 (2013.01) [A61B 2017/320741 (2013.01); A61B 2017/320775 (2013.01); A61B 2090/036 (2016.02)] 17 Claims
OG exemplary drawing
 
1. A medical cutting assembly, comprising a cutter head and a limiting member rotatably connected to the cutter head, wherein the cutter head comprises a delivery portion; the limiting member comprises a decomposing portion; and when the cutter head and the limiting member rotate relative to each other, and the decomposing portion extends through the delivery portion;
wherein the cutter head comprises a cutting portion; the cutting portion comprises a plurality of cutting edges extending from a proximal end to a distal end; the delivery portion comprises delivery slots located between two adjacent cutting edges; at least one cutting edge is provided with a through slot; the through slot is communicated with the delivery slot adjacent to the cutting edge; and when the cutter head and the limiting member rotate relative to each other, the decomposing portion extends through the delivery slots for multiple passes.