# US 12,178,928 B2 · Oral irrigator > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,178,928 B2 - Document ID: US12178928B2 - Status: Granted - Kind: B2 - Application number: 17/723,854 - Filed: 2022-04-19 - Published: 2022-10-20 - Granted: 2024-12-31 - Earliest claimed: 2021-04-20 - Assignees: Fly Cat Electrical Co., Ltd. - Applicants: Fly Cat Electrical Co., Ltd. - Inventors: Xinquan Liu; Yong Tang - Web page: https://patentgrep.com/patent/US12178928B2 ## CPC - A61L 2/10: Ultraviolet [UV] radiation - A61C 17/0202: {Hand-pieces} - A61L 2/24: Apparatus using programmed or automatic operation - A61L 2/26: Accessories - A61C 1/0076: {Sterilising operating fluids or fluid supply elements such as supply lines, filters} - A61L 2103/15: Laboratory, medical or dentistry appliances, e.g. catheters or sharps - A61L 2202/11: Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps - A61L 2202/14: Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs - A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K) - A61C: DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE (non-driven toothbrushes A46B; {tongue scrapers A61B17/24;} preparations for dentistry A61K6/00; preparations for cleaning the teeth or mouth A61K8/00, A61Q11/00) ## Abstract The present application relates to an oral irrigator, the oral irrigator includes at least a main body, a partition wall, a sterilization portion, and a control main board. By providing the partition wall, the first cavity and the second cavity are separated from each other, and the spray head is separately accommodated in the second cavity, and the first cavity is provided with the sterilization portion corresponding to the second cavity. The sterilization portion includes a UV lamp module. The second cavity and the spray head are sterilized through the UV lamp module, which effectively reduces the secondary pollution of the flushing fluid. ## Claims ### Claim 1 An oral irrigator, comprising: a main body, provided therein with a cavity; a partition wall, arranged in the cavity along a longitudinal direction of the main body to divide the cavity into a first cavity and a second cavity spaced apart from each other, wherein the first cavity is configured for accommodating a working part, and the second cavity is configured for accommodating a spray head, when the spray head is accommodated in the second cavity, an output end of the spray head is arranged adjacent to a bottom of the second cavity; a sterilization portion, located in the first cavity and arranged adjacent to the partition wall, wherein the sterilization portion comprises an ultraviolet light UV lamp module, the partition wall is provided with a light-transmitting area, such that light emitted by the UV lamp module passing through the light-transmitting area to irradiate an inside of the second cavity and the spray head, wherein the light-transmitting area is arranged at a lower portion of the partition wall, and the UV lamp module is arranged facing the light-transmitting area, such that the light emitted by the UV lamp module only passes through the light-transmitting area and directly reach the output end of the spray head; and a control main board, electrically connected to the UV lamp module, wherein the control main board is provided with a control switch group electrically connected to the control main board, and the control switch group comprises a UV control switch configured for controlling on and off of the UV lamp module. ### Claim 2 (depends on 1) The oral irrigator according to claim 1, wherein the control switch group further comprises an anti-inversion switch electrically connected to the control main board, and the anti-inversion switch is configured to respond to turn off the UV lamp module when the oral irrigator is in a tilted or inverted posture. ### Claim 3 (depends on 1) The oral irrigator according to claim 1, wherein the control switch group further comprises a timing switch electrically connected to the control main board, and the timing switch is configured to turn off the UV lamp module when a preset time period is reached. ### Claim 4 (depends on 1) The oral irrigator according to claim 1, wherein a support member is provided in the first cavity; and the sterilization portion and the control main board are fixed in the first cavity through the support member. ### Claim 5 (depends on 4) The oral irrigator according to claim 4, wherein the support member is arranged outside the working part to space the working part with the sterilization portion and the control main board. ### Claim 6 (depends on 1) The oral irrigator according to claim 1, wherein an engagement portion is provided in the second cavity, the spray head is suspended in the second cavity by means of the engagement portion. ### Claim 7 (depends on 1) The oral irrigator according to claim 1, wherein a position of the light-transmitting area corresponds to an output end of the spray head. ### Claim 8 (depends on 1) The oral irrigator according to claim 1, wherein the UV lamp module comprises a substrate and UV lamp beads adhered to the substrate, and the UV lamp beads are provided on a side of the substrate facing the light-transmitting area. ### Claim 9 (depends on 1) The oral irrigator according to claim 1, wherein the light-transmitting area is provided with an opening, a light-transmitting plate is provided in the opening; and light-transmitting plate is a quartz glass plate. ### Claim 10 (depends on 1) The oral irrigator according to claim 1, further comprising a battery arranged in the first cavity, and the battery is electrically connected to the control main board.