ULTRASONIC SCALPEL WAVEGUIDE SHAFT - SHANGHAI YISI MEDICAL TECH CO LTD

Title:

ULTRASONIC SCALPEL WAVEGUIDE SHAFT

Document Type and Number:

WIPO Patent Application WO/2018/010541

Kind Code:

A1

Abstract:

An ultrasonic scalpel waveguide shaft, consisting of a proximal-end gain structure (1), a distal-end gain structure (2), an intermediate structure (3), and a frequency adjusting structure (4, 41, 42, 43). The proximal-end gain structure (1) and the intermediate structure (3) are connected via a proximal gain step (13) at a location near a longitudinal vibration antinode of the waveguide shaft. The distal-end gain structure (2) and the intermediate structure (3) are connected via a distal gain step (23) at a location near a longitudinal vibration antinode of the waveguide shaft. The intermediate structure (3) is connected to N (where N > 0 and is an integer) gain maintaining structures (31, 32, 33, 34) via an intermediate gain step (312, 323) at a location near the longitudinal vibration antinode of the waveguide shaft. X (where X > 0 and is an integer) frequency adjusting structures (4) are present in the gain maintaining structure (31, 32, 33, 34). The waveguide shaft allows the ultrasonic scalpel to have a higher blade vibration amplitude. The waveguide shaft can also operate under a stable and suitable vibration frequency to cut a human body tissue with great efficiency.

Inventors:

LI ZHIDONG (CN)
LIU RUIXUAN (CN)
ZHANG YU (CN)
NIE HONGLIN (CN)
SHI XIUFENG (CN)

Application Number:

PCT/CN2017/090329

Publication Date:

January 18, 2018

Filing Date:

June 27, 2017

Export Citation:

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Assignee:

SHANGHAI YISI MEDICAL TECH CO LTD (CN)
YISI (SUZHOU) MEDICAL TECH CO LTD (CN)

International Classes:

A61B17/3211

Domestic Patent References:

WO1998016157A1

1998-04-23

Foreign References:

CN105962996A	2016-09-28
CN206285143U	2017-06-30
CN101495050A	2009-07-29
CN1684635A	2005-10-19
US20020124617A1	2002-09-12
CN104027156A	2014-09-10

Other References: