Title:
MEDICAL GRINDING TOOL AND DYNAMIC SEALING STRUCTURE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/021655
Kind Code:
A1
Abstract:
The present application relates to a medical grinding tool (10) and a dynamic sealing structure thereof. An inner cutter assembly (200) can smoothly rotate relative to an outer cutter assembly (100) and synchronously drive an inner ring (310) of a bearing (300) to rotate, and an outer ring (320) of the bearing (300), a first seal (400) and a second seal (500) all remain stationary, so that both the first seal (400) and the second seal (500) do not generate high-speed friction, and thus a good sealing effect is ensured. Moreover, since both the first seal (400) and the second seal (500) remain stationary relative to the outer cutter assembly (100), a conventional universal medical material can be used to reduce costs. In addition, the gap between the inner ring (310) and the inner cutter assembly (200) and the gap between the outer ring (320) and the outer cutter assembly (100) are sealed using the first seal (400) and the second seal (500), respectively, so that external matter such as normal saline, blood, or residues can be effectively prevented from entering the handle through the gaps and thereby corroding and rusting the interior of the handle or causing faults such as electric leakage and short circuits, and thus safe and normal surgeries are ensured.
Inventors:
GUO YIJUN (CN)
GUO YIHONG (CN)
LUO JIE (CN)
GUO YIHONG (CN)
LUO JIE (CN)
Application Number:
PCT/CN2023/084284
Publication Date:
February 01, 2024
Filing Date:
March 28, 2023
Export Citation:
Assignee:
CHONGQING XISHAN SCIENCE & TECH CO LTD (CN)
International Classes:
A61B17/16
Domestic Patent References:
| WO2016042579A2 | 2016-03-24 |
Foreign References:
| CN115068050A | 2022-09-20 | |||
| CN215960157U | 2022-03-08 | |||
| CN1456130A | 2003-11-19 | |||
| CN113576626A | 2021-11-02 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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