Patent ID: 11911513
Assignee: SHANGHAI WD PHARMACEUTICAL CO., LTD
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 13:
14. The method of claim 4, wherein the ring body is an open ring body or a closed ring body; or, the ring body is a circular, elliptical, polygonal, or special-shaped closed ring body or open ring body;
or, the retainer is of a circular arc hollow or solid shape, or the retainer is formed by connecting a closed ring body and a semicircular part perpendicular to the closed ring body;
or the retainer abuts with the ring body, or the retainer and the ring body are arranged at an interval; or, the retainer and the ring body are abutted by means of integral molding or are connected together by a connecting structure;
or, the retainer is provided as one retainer that is located on the incisor side in the horizontal direction formed by the molars and the incisors; or the ring body is provided as one ring body that is located on the molar side in the horizontal direction formed by the molars and the incisors;
or, the tooth matching component can match with any one or more teeth in the oral cavity, or the tooth matching component has a length equal to the length of 2-5 teeth;
wherein, the teeth are mandibular permanent teeth, or mandibular molars, or the first molar and the second molar, or the first molar, the second molar and the second premolar, or the first molar, the second molar and the third molar, or the first molar, the second molar, the third molar and the second premolar on the mandible;
or, the tooth matching component is wrapped, embedded, fitted, or inserted into the tooth that matches with the tooth matching component;
or, the material of the oral retention device is an oral stable material, which is selected from oral stable metal or thermoplastic elastomer;
wherein, the oral stable metal is selected from one of titanium, stainless steel, cobalt-chromium alloy, cobalt-chromium-molybdenum alloy or precious metal for dental use, and the thermoplastic elastomer is selected from copolymers of one or two of polycaprolactone, ethylene-vinyl acetate copolymer, high-density polyethylene, polypropylene, polyacrylate, polyurethane, silicon polymer, polyester, poly(styrene-ethylene-butylene-styrene), poly(styrene-butadiene-styrene), and poly(styrene-isoprene-styrene); and
or, the materials of the tooth matching component and the drug-loaded component are cobalt-chromium alloy.