Magnetic denture attachment and method of manufacturing the magnetic structure
The simplified structure of the thin magnet denture attachment, featuring a ring-shaped rare earth sintered magnet and a stainless steel shield plate, addresses the complexity and cost issues of conventional designs, achieving enhanced manufacturability and magnetic attraction suitable for commercialization.
Patent Information
- Application Number
- JP2024146104
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2044-08-28
AI Technical Summary
Conventional thin magnet denture attachments have complex structures, poor manufacturability, and high manufacturing costs, making them difficult to produce with excellent quality and commercialize effectively. Additionally, reducing the thickness of these attachments to less than 1 mm significantly reduces the adsorption force, and existing methods to enhance this force are complex and costly.
A simplified structure for a thin magnet denture attachment is developed, incorporating a ring-shaped rare earth sintered magnet sealed with a ring-shaped stainless steel shield plate. The boundary between the cap and the shield plate is modified to be nonmagnetic using laser welding, and a gap is maintained between the magnet and the shield plate to prevent damage from laser heat. This design enhances manufacturing efficiency and increases the adsorption force to 400g to 800g.
The simplified structure of the thin magnet denture attachment achieves high magnetic attraction with improved manufacturability and reduced costs, making it suitable for commercialization and effective in maintaining digital dentures.