MEDICAL CUTTING ASSEMBLY AND VOLUME REDUCTION CATHETER SYSTEM

WIPO Patent Application WO/2022/048586

A1

A medical cutting assembly (10) and a volume reduction catheter system. The medical cutting assembly (10) comprises a cutter head (101) and a limiting member (102) connected to the cutter head (101), wherein the cutter head (101) comprises a delivery portion (1012); the limiting member (102) comprises a decomposing portion (1021); and when the cutter head (101) and the limiting member (102) rotate relative to one another, the decomposing portion (1021) passes through the delivery portion (1012). The volume reduction catheter system comprises a cutting section and a transfer section. The delivery portion (1012) can transfer excess tissue cut by the cutter head (101) from a distal end to a proximal end. The limiting member (102) is provided with the decomposing portion (1021), and when the cutter head (101) and the limiting member (102) rotate relative to one another, the decomposing portion (1021) passes through the delivery portion (1012), such that the decomposing portion (1021) rotating at a high speed further cuts and decomposes the cut tissue in the delivery portion (1012) into tissue with a smaller volume, so as to achieve more sufficient decomposition of tissue in order to facilitate the subsequent discharge of excess tissue.

WU XINGYU (CN)
LONG HAN (CN)
ZHOU ZHENBIAO (CN)

PCT/CN2021/116163

March 10, 2022

September 02, 2021

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LIFETECH SCIENT SHENZHEN CO (CN)

A61B17/22; A61B17/3207

WO2014059150A1

2014-04-17

CN101511284B	2011-11-09
US20150133977A1	2015-05-14
CN109717925A	2019-05-07
US20100324472A1	2010-12-23
US20170360467A1	2017-12-21
CN101795630A	2010-08-04
US20070265647A1	2007-11-15

BEIJING CHEN QUAN INTELLECTUAL PROPERTY LAW FIRM (CN)

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