# US 10,500,389 B2 · System and method for flared luer connector for medical tubing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,500,389 B2 - Document ID: US10500389B2 - Status: Granted - Kind: B2 - Application number: 15/291,895 - Filed: 2016-10-12 - Published: 2017-07-06 - Granted: 2019-12-10 - Earliest claimed: 2016-01-04 - Assignees: Repro-Med Systems, Inc. - Applicants: Repro-Med Systems, Inc. - Inventors: Andrew I. Sealfon; Siavash Gheshmi - Web page: https://patentgrep.com/patent/US10500389B2 ## CPC - A61M 39/1011: {Locking means for securing connection; Additional tamper safeties (A61M39/16 takes precedence)} - A61M 39/10: Tube connectors or tube couplings - A61M 5/1452: {pressurised by means of pistons} - A61M 5/165: Filtering accessories, e.g. blood filters, filters for infusion liquids (A61M1/34, A61M5/36 take precedence) - A61M 39/1033: {Swivel nut connectors, e.g. threaded connectors or bayonet-connectors} - A61M 39/12: for joining a flexible tube to a rigid attachment - A61M 2039/1094: {at least partly incompatible with standard connectors, e.g. to prevent fatal mistakes in connection} - A61M 2205/586: Ergonomic details therefor, e.g. specific ergonomics for left or right-handed users - A61M 2205/75: with filters - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract Provided is a system and method for a flared luer connector for medical tubing. More specifically, the flared luer connector includes a tube head adapter formed of a resilient material providing an inlet and opposite thereto an outlet with a longitudinal axis there between. A luer lock fitting is formed proximate to the inlet and structured and arranged to engage a syringe, and at least one flared member disposed between the luer lock fitting and the outlet, the flared member rising from the tube head adapter and angled towards the outlet. The flared member also provides at least one engaging surface between the tube head adapter and a distal edge, the engaging surface acutely angled with respect to the longitudinal axis. The engaging surface is structured and arranged to engage with a corresponding receiving section of a base, the base having a deflector section structured and arranged to deflect a tube head adapter having other than the corresponding flared member. An associated method of use is also provided. ## Claims ### Claim 1 A flared luer connector for medical tubing comprising: a tube head adapter formed of a resilient material providing: an inlet and opposite thereto an outlet with a longitudinal axis there between; a luer lock fitting formed proximate to the inlet and structured and arranged to engage a syringe; and at least one flared member disposed between the luer lock fitting and the outlet, the flared member rising from the tube head adapter and angled towards the outlet, the flared member further providing at least one inner engaging surface between the tube head adapter and a distal edge, the inner engaging surface acutely angled toward the outlet with respect to the longitudinal axis. ### Claim 2 (depends on 1) The flared luer connector of claim 1, wherein the engaging surface is structured and arranged to engage a correspondingly angled receiver section of a base, the base having an angled deflector section structured and arranged to deflect a tube head adapter having other than the flared member. ### Claim 3 (depends on 2) The flared luer connector of claim 2, wherein the base is an insert provided to a syringe pump. ### Claim 4 (depends on 2) The flared luer connector of claim 2, wherein the base is a component of a syringe pump. ### Claim 5 (depends on 1) The flared luer connector of claim 1, wherein the tube head adapter further provides at least one gripper structured and arranged for gripping by an operator as the luer lock fitting is engaged with a syringe. ### Claim 6 (depends on 1) The flared luer connector of claim 1, wherein the angle of the acutely angled inner engaging surface is constant. ### Claim 7 (depends on 1) The flared luer connector of claim 1, wherein the angle of the acutely angled inner engaging surface corresponds to a parabola. ### Claim 8 (depends on 1) The flared luer connector of claim 1, wherein the flared member elevates the luer lock fitting away from a surface when the tube head adapter is disconnected from the syringe and at least partially disposed horizontally upon a surface. ### Claim 9 (depends on 1) The flared luer connector of claim 1, wherein the tube head adapter is generally cylindrical. ### Claim 10 (depends on 1) The flared luer connector of claim 1, wherein the luer lock fitting has a first outer portion structured and arranged to fit within a cylindrical housing, the flared member disposed about the tube head adapter behind the first outer portion. ### Claim 11 (depends on 1) The flared luer connector of claim 1, wherein the flared member is a circumferential cone rising from the tube head adapter and flaring away from the luer lock fitting. ### Claim 12 (depends on 11) The flared luer connector of claim 11, wherein the circumferential cone has a generally circular cross section normal to the tube head adapter. ### Claim 13 (depends on 11) The flared luer connector of claim 11, wherein the circumferential cone is provided by a plurality of sections such that a cross section normal to the tube head adapter has at least one straight section. ### Claim 14 (depends on 1) The flared luer connector of claim 1, wherein the flared luer connector is joined to medical tubing. ### Claim 15 (depends on 1) The flared luer connector of claim 1, further including at least one filter disposed in a fluid channel between the inlet and the outlet. ### Claim 16 A flared luer connector for medical tubing comprising: a tube head adapter formed of a resilient material providing at least two members, a first member as a luer lock fitting structured and arranged to engage a syringe; and a second member as a circumferential cone axially connected adjacent to the luer lock fitting, the circumferential cone rising from the tube head adapter and flaring away from the luer lock fitting of the first member, the circumferential cone having an inner angled surface oriented away from the luer lock fitting, at least a portion of the inner angled surface structured and arranged to engage a correspondingly angled receiver section of a base. ### Claim 17 (depends on 16) The flared luer connector of claim 16, wherein the second member is axially connected behind the luer lock fitting of the first member. ### Claim 18 (depends on 16) The flared luer connector of claim 16, wherein the tube head adapter further provides at least one gripper structured and arranged for gripping by an operator as the luer lock fitting is engaged with a syringe. ### Claim 19 (depends on 16) The flared luer connector of claim 16, wherein the tube head adapter is generally cylindrical. ### Claim 20 (depends on 16) The flared luer connector of claim 16, wherein the circumferential cone elevates the luer lock fitting away from a surface when the tube head adapter is disconnected from the syringe and at least partially disposed horizontally upon a surface. ### Claim 21 (depends on 16) The flared luer connector of claim 16, wherein the circumferential cone has a generally circular cross section normal to the tube head adapter. ### Claim 22 (depends on 16) The flared luer connector of claim 16, wherein the angle of the inner angled surface is constant. ### Claim 23 (depends on 16) The flared luer connector of claim 16, wherein the angle of the inner angled surface corresponds to a parabola. ### Claim 24 (depends on 16) The flared luer connector of claim 16, wherein the circumferential cone is provided by a plurality of sections such that a cross section normal to the head adapter has at least one straight section. ### Claim 25 (depends on 16) The flared luer connector of claim 16, wherein the flared luer connector is joined to medical tubing. ### Claim 26 (depends on 16) The flared luer connector of claim 16, wherein the tube head adapter provides an inlet adjacent to the luer lock fitting and opposite thereto an outlet with a fluid channel there between, the flared luer connector further including at least one filter disposed within the fluid channel. ### Claim 27 A syringe pump for use with a flared luer connector for medical tubing comprising: a housing structured and arranged to receive a syringe having a plunger movable along a barrel and an engaged tubing, the engaged tubing providing a head adapter providing a luer lock fitting engaged to the syringe and a circumferential cone rising from the head adapter and flaring away from the luer lock fitting, the circumferential cone having an inner angled surface; a base having: a generally cylindrical body having a longitudinal groove therein structured and arranged to receive at least a portion of the flared luer connector, the cylindrical body having a first end providing; a receiver section and a deflector section with a transition zone there between; the transition zone disposed below a longitudinal centerline of the cylindrical body the receiver section extending away from the longitudinal groove and correspondingly angled to receive at least a portion of an inner angled surface provided by the flared luer connector; and the deflector section sloping across the longitudinal groove; and an actuator structured and arranged to engage the plunger of the syringe and drive the plunger towards the engaged tubing, a force of the actuator further engaging the inner angled surface of the circumferential cone to the receiver section of the base. ### Claim 28 (depends on 27) The syringe pump of claim 27, wherein the deflector section is structured and arranged to deflect a tube head adapter having other than the circumferential cone. ### Claim 29 (depends on 27) The syringe pump of claim 27, wherein a transition zone between the receiver section and the deflector section is radially offset from the longitudinal groove. ### Claim 30 (depends on 27) The syringe pump of claim 27, wherein the base is a component of a syringe pump. ### Claim 31 (depends on 27) The syringe pump of claim 27, wherein the base is an insert structured and arranged to couple with a base housing. ### Claim 32 (depends on 27) The syringe pump of claim 27, wherein the receiver section has a generally circular cross section normal to the longitudinal groove. ### Claim 33 (depends on 27) The syringe pump of claim 27, wherein the angle of the receiver section is constant. ### Claim 34 (depends on 27) The syringe pump of claim 27, wherein the angle of the receiver section corresponds to a parabola. ### Claim 35 A base for a flared luer connector for medical tubing comprising: a generally cylindrical body having a longitudinal groove therein structured and arranged to receive at least a portion of the flared luer connector, the cylindrical body having a first end providing: a receiver section and a deflector section with a transition zone there between; the transition zone disposed below a longitudinal centerline of the cylindrical body; the receiver section extending away from the longitudinal groove and correspondingly angled to receive at least a portion of an inner angled surface provided by the flared luer connector; and the deflector section sloping across the longitudinal groove and structured and arranged to deflect a tube head adapter other than the flared luer connector. ### Claim 36 (depends on 35) The base of claim 35, wherein a transition zone between the receiver section and the deflector section is radially offset from the longitudinal groove. ### Claim 37 (depends on 35) The base of claim 35, wherein the base is a component of a syringe pump. ### Claim 38 (depends on 35) The base of claim 35, wherein the base is an insert structured and arranged to couple with a base housing. ### Claim 39 (depends on 38) The base of claim 38, wherein the base housing is a FreedomeEdge Syringe Infusion System. ### Claim 40 (depends on 38) The base of claim 38, wherein the base housing is a Freedome60® Syringe Infusion System. ### Claim 41 (depends on 35) The base of claim 35, wherein the receiver section has a generally circular cross section normal to the longitudinal groove. ### Claim 42 (depends on 35) The base of claim 35, wherein the angle of the receiver section is constant. ### Claim 43 (depends on 35) The base of claim 35, wherein the angle of the receiver section corresponds to a parabola. ### Claim 44 (depends on 35) The base of claim 35, wherein the flared luer connector includes: a tube head adapter formed of a resilient material providing: an inlet and opposite thereto an outlet with a longitudinal axis there between; a luer lock fitting formed proximate to the inlet and structured and arranged to engage a syringe; and at least one flared member disposed between the luer lock fitting and the outlet, the flared member rising from the tube head adapter and angled towards the outlet, the flared member further providing at least one inner angled surface between the tube head adapter and a distal edge, the inner angled surface acutely angled toward the outlet with respect to the longitudinal axis. ### Claim 45 A flared luer medical tubing kit for a syringe pump comprising: tubing having a tube head adapter formed of a resilient material providing a luer lock fitting structured and arranged to engage a syringe, and a circumferential cone rising from the tube head adapter and flaring away from the luer lock fitting, the cone having an inner angled surface structured and arranged to engage a correspondingly angled receiver section of a base; a base having: a generally cylindrical body having a longitudinal groove therein structured and arranged to receive at least a portion of the flared luer connector, the cylindrical body having a first end providing; a receiver section and a deflector section with a transition zone there between; the transition zone disposed below a longitudinal centerline of the cylindrical body; the receiver section extending away from the longitudinal groove and correspondingly angled to receive at least a portion of an inner angled surface provided by the flared luer connector; and the deflector section sloping across the longitudinal groove and structured and arranged to deflect a tube head adapter other than the flared luer connector. ### Claim 46 (depends on 45) The medical tubing kit of claim 45, wherein the tube head further provides at least one gripper structured and arranged for gripping by an operator as the luer lock fitting is engaged with a syringe. ### Claim 47 (depends on 45) The medical tubing kit of claim 45, wherein the circumferential cone elevates the luer lock fitting away from a surface when the tube head adapter is disconnected from the syringe and at least partially disposed horizontally upon a surface. ### Claim 48 (depends on 45) The medical tubing kit of claim 45, wherein the tube head adapter is generally cylindrical. ### Claim 49 (depends on 45) The medical tubing kit of claim 45, wherein a transition zone between the receiver section and the deflector section is radially offset from the longitudinal groove. ### Claim 50 (depends on 45) The medical tubing kit of claim 45, wherein the circumferential cone has a generally circular cross section normal to the head adapter. ### Claim 51 (depends on 45) The medical tubing kit of claim 45, wherein the angle of the inner angled surface of the circumferential cone is constant. ### Claim 52 (depends on 45) The medical tubing kit of claim 45, wherein the angle of the inner angled surface of the circumferential cone corresponds to a parabola. ### Claim 53 (depends on 45) The medical tubing kit of claim 45, wherein the base is an insert structured and arranged to couple with a base housing. ### Claim 54 (depends on 45) The medical tubing kit of claim 45, wherein the receiver section has a generally circular cross section normal to the longitudinal groove. ### Claim 55 (depends on 45) The medical tubing kit of claim 45, wherein the angle of the receiver section is constant. ### Claim 56 (depends on 45) The medical tubing kit of claim 45, wherein the angle of the receiver section corresponds to a parabola. ### Claim 57 A method for using flared luer medical tubing, comprising: providing a tubing having a tube head adapter formed of a resilient material providing a luer lock fitting structured and arranged to engage a syringe, and a circumferential cone rising from the tube head adapter and flaring away from the luer lock fitting, the circumferential cone having an inner angled surface structured and arranged to engage a correspondingly angled receiver section of a base; engaging the luer lock fitting of the tubing to a syringe having a barrel with a plunger disposed within and movable along the barrel, the circumferential cone thus flaring away from the syringe; and disposing the syringe with engaged tubing within a pump having an actuator and a base, the base having: a longitudinal groove structured and arranged to receive at least a portion of the tubing; a receiver section extending away from the longitudinal groove and correspondingly angled to receive at least a portion of the inner angled surface of the circumferential cone; and a deflector section sloping across the longitudinal groove; wherein the actuator is structured and arranged to engage the plunger of the syringe and drive the plunger towards the tubing, the force of the actuator further engaging the inner angled surface of the circumferential cone to the receiver section of the base. ### Claim 58 (depends on 57) The method of claim 57, wherein the tube head adapter further provides at least one gripper structured and arranged for gripping by an operator as the luer lock fitting is engaged with a syringe. ### Claim 59 (depends on 57) The method of claim 57, wherein the circumferential cone elevates the luer lock fitting away from a surface when the tube head adapter is disconnected from the syringe and at least partially disposed horizontally upon a surface. ### Claim 60 (depends on 57) The method of claim 57, wherein the circumferential cone has a generally circular cross section normal to the head adapter. ### Claim 61 (depends on 57) The method of claim 57, wherein the angle of the inner angled surface is constant. ### Claim 62 (depends on 57) The method of claim 57, wherein the angle of the inner angled surface corresponds to a parabola. ### Claim 63 (depends on 57) The method of claim 57, wherein a transition zone between the receiver section and the deflector section is radially offset from the longitudinal groove. ### Claim 64 (depends on 57) The method of claim 57, wherein the base is a component of a syringe pump. ### Claim 65 (depends on 57) The method of claim 57, wherein the base is an insert structured and arranged to couple with a base housing. ### Claim 66 (depends on 57) The method of claim 57, wherein the receiver section has a generally circular cross section normal to the longitudinal groove. ### Claim 67 (depends on 57) The method of claim 57, wherein the angle of the receiver section is constant. ### Claim 68 (depends on 57) The method of claim 57, wherein the angle of the receiver section corresponds to a parabola.