# US 11,992,378 B2 · Dental syringe tip devices, systems and methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,992,378 B2 - Document ID: US11992378B2 - Status: Granted - Kind: B2 - Application number: 17/238,685 - Filed: 2021-04-23 - Published: 2021-11-11 - Granted: 2024-05-28 - Earliest claimed: 2013-08-15 - Assignees: Donovan Winston Berkely - Applicants: Donovan Winston Berkely - Inventors: Donovan Winston Berkely; Bryan M. Wasylucha - Web page: https://patentgrep.com/patent/US11992378B2 ## CPC - A61C 17/0202: {Hand-pieces} - A61C 1/088: {Illuminating devices or attachments (for examination of the mouth A61B1/24 and A61B1/06)} - A61C 17/02: Rinsing or air-blowing devices, e.g. using fluid jets {or comprising liquid medication} (combined with receptacles for spittle A61C17/14; combined with power-driven cleaning or polishing devices A61C17/16) - A61C 17/0217: {having means for manually controlling the supply of two or more fluids, e.g. water and air} - A61C 17/022: Air-blowing devices {, e.g. with means for heating the air} - 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 A dental syringe tip system for attachment to a dental syringe. The dental syringe tip system can include components such as an outer core, an inner core, and a carrier which can be combined in a multitude of combinations to achieve different fluid flow characteristics, such as discharge pressure and discharge pattern, through the dental syringe tip. The outer core and inner core can have passages designed to modify fluid flow characteristics. In addition, the outer core and inner core can have additional connectors for receiving fluids from sources other than a dental syringe. Some or all of the components can be separate to be assembled by a manufacturer or an end-user. Assembly of multiple components can be facilitated by retention features located on the components. ## Claims ### Claim 1 A method of preparing a syringe tip for attachment to a dental syringe, the method comprising: providing an outer core having a proximal end and a distal end, the outer core having a first passage and a second passage that are spaced apart and parallel to each other, each of the first and second passages having a proximal aperture at the proximal end of the outer core, and a distal aperture at the distal end of the outer core; providing a first inner core configured to be received and retained within the first passage of the outer core, the first inner core having a proximal end and a distal end, the first inner core having a first proximal aperture at the proximal end of the first inner core, a first distal aperture at the distal end of the first inner core, and a first passage connecting the first proximal aperture and the first distal aperture; providing a second inner core configured to be received and retained within the second passage of the outer core, the second inner core having a proximal end and a distal end, the second inner core having a second proximal aperture at the proximal end of the second inner core, a second distal aperture at the distal end of the second inner core, and a second passage connecting the second proximal aperture and the second distal aperture; providing a carrier with two holders configured to receive the first and second inner core; providing a connector to provide a third passage through a top, bottom, or lateral surface of the outer core such that the third passage is in fluid communication with the first passage of the outer core, the connector provided at a location other than the proximal and distal end of the outer core; inserting the first inner core into the first passage of the outer core; inserting the second inner core into the second passage of the outer core; coupling the carrier with the first inner core and the second inner core; and engaging a clip mechanism of the carrier with a corresponding recess on the outer core. ### Claim 2 (depends on 1) The method of claim 1, wherein the proximal aperture of the first and/or second passage has a first diameter and the distal aperture of the first and/or second passage has a second diameter not equal to the first diameter and wherein the first passage and/or second passage of the outer core tapers from the first diameter to the second diameter. ### Claim 3 (depends on 1) The method of claim 1, further comprising engaging a retention feature of the outer core with a corresponding retention feature of the first inner core. ### Claim 4 (depends on 3) The method of claim 3, wherein the retention feature comprises at least one of threads, a slot, a snap fitting, a twist-lock mechanism, fins, dimples, a hinge, an adhesive, and a coating along the interior surface of the outer core. ### Claim 5 (depends on 1) The method of claim 1, wherein inserting the first inner core comprises extending the first inner core at least partially into the first passage of the outer core. ### Claim 6 (depends on 1) The method of claim 1, wherein the provided outer core has at least one bending feature. ### Claim 7 (depends on 1) The method of claim 1, further comprising providing a coating of material on at least one of the outer core and the first inner core to enhance the seal between the outer core and the first inner core and a component to be attached. ### Claim 8 (depends on 1) The method of claim 1, wherein at least one of the outer core and the first inner core comprise an anti-microbial material. ### Claim 9 (depends on 1) The method of claim 1, further comprising providing a light transmitter with at least one of the outer core and the first inner core to direct light from a first location to a second location. ### Claim 10 (depends on 9) The method of claim 9, wherein the light transmitter is provided with the first inner core, and the first inner core comprising a plastic. ### Claim 11 (depends on 1) The method of claim 1, further comprising providing a sealing device. ### Claim 12 (depends on 1) The method of claim 1, further comprising providing an adhesive with a cover, the cover being removable to expose the adhesive. ### Claim 13 (depends on 1) The method of claim 1, wherein the first and second passages continuously taper from the proximal aperture to the distal aperture.