Title:
THROMBUS REMOVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/127305
Kind Code:
A1
Abstract:
A thrombus removing device (1000) comprises a balloon catheter (1200), a transmission tube (1400) and a sheath tube (1500), wherein the balloon catheter (1200) is slidably sleeved in the transmission tube (1400); the sheath tube (1500) is sleeved outside the transmission tube (1400); a distal end and a proximal end of the balloon catheter (1200) are respectively connected to a balloon (1100) and a perfusion unit (1800); the transmission tube (1400) is rotationally connected to a thrombus sucking head (1300); a thrombus breaking cutter (1410) is fixed at a distal end of the transmission tube (1400); the thrombus breaking cutter (1410) is accommodated in the thrombus sucking head (1300); a proximal end of the transmission tube (1400) is connected to a driving unit (1420); a proximal end of the sheath tube (1500) is connected to a suction unit (1700); a gap between an outer wall of the transmission tube (1400) and an inner wall of the sheath tube (1500) forms a thrombus sucking channel (1750); and the thrombus sucking channel (1750) is in communication with the thrombus sucking head (1300). A filling channel (1230) is arranged in the balloon catheter (1200); the perfusion unit (1800) injects a first liquid into or extracts same out of the balloon (1100) via the filling channel (1230) to control the expansion or contraction of the balloon (1100); and the perfusion unit (1800) also provides a second liquid for an area between the balloon (1100) and the thrombus sucking head (1300). The suction unit (1700) sucks a thrombus into the thrombus sucking head (1300) via the thrombus sucking channel (1750), the driving unit (1420) drives the thrombus breaking cutter (1410) to cut the thrombus into fragments, and then the thrombus fragments are sucked out by the suction unit (1700) via the thrombus sucking channel (1750).
Inventors:
FAN YAMING (CN)
ZHANG GUANYI (CN)
WANG JIAHAO (CN)
YUAN ZHENYU (CN)
MIAO ZHENGHUA (CN)
ZHANG GUANYI (CN)
WANG JIAHAO (CN)
YUAN ZHENYU (CN)
MIAO ZHENGHUA (CN)
Application Number:
PCT/CN2021/122726
Publication Date:
June 23, 2022
Filing Date:
October 09, 2021
Export Citation:
Assignee:
SHANGHAI BLUEVASCULAR MEDTECH CO LTD (CN)
International Classes:
A61B17/22
Domestic Patent References:
| WO2019001245A1 | 2019-01-03 |
Foreign References:
| CN111759399A | 2020-10-13 | |||
| CN111568497A | 2020-08-25 | |||
| CN107773286A | 2018-03-09 | |||
| CN110548212A | 2019-12-10 | |||
| US20030114792A1 | 2003-06-19 | |||
| US20130158511A1 | 2013-06-20 | |||
| US20140088610A1 | 2014-03-27 |
Other References:
See also references of EP 4265202A4
Attorney, Agent or Firm:
SHANGHAI SAVVY IP AGENCY CO., LTD. (CN)
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