Dispensing device with independent dual compartments and dual channel tip

Abstract

The present disclosure provides a device for dispensing at least two different fluids, semi-solids, or combinations thereof, comprising: - at least one chamber comprises at least two independent compartments arranged parallel to one another, with outlets preferably having different capacities, each compartment being provided with an independent outlet; - at least two independent plungers configured to move independently toward respective independent discharge ports; - the locking mechanism is configured to lock at least one plunger when not in use; The chip has at least two channels, the channels preferably having different areas, each channel in fluid communication with a corresponding independent outlet, the area of ​​each channel matching the area of ​​the independent outlet. Additionally, a system including the device is also disclosed.

Description

[Technical Field]

[0001] The present invention relates to the field of dispensers. [Background technology]

[0002] Dental composites are mixtures containing heterogeneous phases: the organic phase is a (meth)acrylate resin monomer, and the inorganic phase contains filler particles of glass, such as barium or other aluminosilicates, usually held together by an organosilane interface that coats the particles. Resin-based dental adhesives have a similar composition, except that they have a lower filler load or, in some formulations, no filler at all. These materials used in restorative dentistry are typically stored in opaque dispensing syringes, from which they are dispensed into wells or auxiliaries, and, if their viscosity is low, are used directly in the patient's mouth during tooth preparation during the restorative procedure.

[0003] Recently, formulations of these materials with self-adhesive properties have been marketed and commercialized. Self-adhesive adhesives and some self-etching dental adhesives may contain two components in separate bottles. These include a hydrophilic priming coat solution, known as a primer, and a highly hydrophobic resin mixture used as the final coat, which is photopolymerized to form a bond. Furthermore, self-adhesive dental composites have also recently been developed as flowable resin-based mixtures, and optimization studies are underway. These formulations are currently stored and dispensed as one-component syringe systems. However, to improve their adhesion, they may be used with separate bottled dental adhesives or simple surface treatments such as acids, primers, or new deproteinization solutions. Existing dispensing syringes and storage packages do not offer a single system that combines two distinct components, whether they are self-adhesive adhesives or composites that include the key surface treatment / priming steps described above. Additionally, dental adhesives are typically provided in bottled systems that do not allow for direct dispensing into cavities.

[0004] Therefore, the need for the present invention is justified. Existing syringes cannot sequentially dispense different, independent materials in a two-component system in an order selected by the operator. Current double-barrel syringes have a common push piston, which simultaneously extrudes two materials. Furthermore, existing syringes do not allow for a tip that can extrude two different materials with different viscosities from independent channels without mixing them.

[0005] U.S. Patent Application Publication No. 2020 / 0289237 discloses a cartridge and piston for storing and dispensing a two-component dental material, the cartridge and piston having a substantially D-shaped cross section, the periphery of the D consisting solely of a plurality of circular arc segments.

[0006] EP 2421464 discloses a dental substance dispensing device having a dispensing outlet for the dental substance and a valve for opening and closing the dispensing outlet. The device is switchable between a storage mode and an operating mode. In the storage mode, the cannula is locked to the device and the valve opens the dispensing outlet, and in the operating mode, the cannula is released from the device and the valve closes the dispensing outlet.

[0007] Thus, in view of the foregoing, it can be seen that there is a need for a new and improved device having two separate chambers capable of containing different, immiscible mixtures, and a single tip capable of dispensing the components sequentially without mixing. Summary of the Invention

[0008] In one embodiment of the present disclosure, there is provided a device for dispensing at least two different fluids, semi-solids, or combinations thereof, comprising: - at least one chamber comprises at least two independent compartments arranged parallel to one another, preferably with different volumes, each compartment being provided with an independent outlet; at least two independent plungers configured to move independently toward said independent outlets; - the locking mechanism is configured to lock at least one plunger when not in use; The chip has at least two channels, said channels preferably having different areas, each said channel in fluid communication with a corresponding independent outlet, said area of ​​each said channel matching the area of ​​the independent outlet.

[0009] In another embodiment, the locking mechanism is further configured to lock the at least one plunger from being retracted after being depressed.

[0010] In yet another embodiment, the locking mechanism comprises a push button locking mechanism, a locking switch button mechanism, a twist lock mechanism, an anti-pullback clip, a ring lock mechanism, or any combination thereof.

[0011] In yet another embodiment, the at least two independent compartments comprise a first compartment and a second compartment, preferably the first compartment having a volume of 1.5 cm 3 4cm from 3 and the volume of the second compartment is 6 cm 3 10cm from 3 is.

[0012] In yet another embodiment, the diameter of the first outlet is between 0.40 mm and 1.5 mm and the diameter of the second outlet is between 0.80 mm and 3 mm.

[0013] In yet another embodiment, the tip comprises two independent channels, the diameter of the first independent channel being between 0.40 mm and 1.5 mm, the diameter of the second independent channel being between 0.80 mm and 3 mm, and the overall diameter of the tip being between 1.5 mm and 5 mm.

[0014] In yet another embodiment, the device further comprises a seal disposed between the at least one chamber and the tip, preferably a polymer-based seal, a resin-based seal, or a combination thereof, the seal comprising at least two hoops having different areas, the area of ​​each hoop corresponding to the area of ​​a substantially independent outlet.

[0015] In yet another embodiment, the at least two independent plungers comprise slots along at least a portion of their length, the slots being spaced 0.5 mm to 3 mm apart, and the length of the slots is such that the fluid, semi-solid, or combination thereof is less than 0.04 cm. 3 from 0.16cm 3 The ink is configured to dispense an amount of

[0016] In yet another embodiment, the at least two independent plungers are configured to move through slots toward the independent outlets when depressed.

[0017] In yet another embodiment, the device includes a button mechanism configured to select a compartment for dispensing, and when selected, the compartment is aligned with the plunger.

[0018] In yet another embodiment, the tip is metallic, polymeric, resin-based, or any combination thereof, and the tip is curved, preferably at an angle of 160° to 110° relative to the chamber.

[0019] In yet another embodiment, the at least two different fluids, semi-solids, or combinations thereof have different viscosities from one another.

[0020] In yet another embodiment, the device is a disposable device, preferably a syringe, a pen device, or a multi-function pen device.

[0021] In another aspect of the present disclosure, there is provided a system including a plurality of the devices according to the present disclosure.

[0022] In another aspect of the present disclosure, there is provided a use of the device according to the present disclosure in dentistry, veterinary medicine, the pharmaceutical industry, the cosmetics industry, the construction industry, laboratory science, biomedical engineering, chemical engineering, mechanical engineering, or any combination thereof, preferably for dispensing at least two different fluids, semi-solids, or combinations thereof, without mixing said at least two different fluids, semi-solids, or combinations thereof.

[0023] In another aspect of the present disclosure, there is provided a use of the system according to the present disclosure in dentistry, veterinary medicine, the pharmaceutical industry, the cosmetics industry, the construction industry, laboratory science, biomedical engineering, chemical engineering, mechanical engineering, or any combination thereof, preferably for dispensing at least two different fluids, semi-solids, or combinations thereof, without mixing the at least two different fluids, semi-solids, or combinations thereof.

[0024] Unless otherwise defined, all technical and / or scientific terms used herein have the meaning commonly understood by one of ordinary skill in the art to which this disclosure pertains. Although methods and materials similar or equivalent to those described herein can be used in the practice or testing of embodiments of the present disclosure, exemplary methods and / or materials are set forth below. In case of conflict, the present patent specification, including definitions, will control. Furthermore, the materials, methods, and examples are illustrative only and are not intended to be necessarily limiting.

[0025] Further embodiments and the full scope of applicability of the present disclosure will become apparent from the detailed description set forth below. However, it should be understood that the detailed description and specific examples, while intended to indicate preferred embodiments of the disclosure, are given for purposes of illustration only, and that various changes and modifications within the spirit and scope of the disclosure will become apparent to those skilled in the art from this detailed description. [Brief explanation of the drawings]

[0026] Certain embodiments of the present disclosure are herein described, by way of example only, with reference to the accompanying drawings, in which: In particular, and in particular, and in detail referring to the drawings, it is emphasized that the matter shown is merely illustrative and for purposes of describing embodiments of the present disclosure. In this regard, the description given in conjunction with the drawings will make apparent to those skilled in the art how embodiments of the present disclosure may be made.

[0027] [Figure 1] FIG. 1 is an exploded simplified diagram illustrating some of the components of an apparatus (100) for dispensing at least two fluids, according to some embodiments of the present disclosure. [Figure 2] FIG. 2 is a simplified plan view illustrating some of the components of an apparatus (100) for dispensing at least two fluids, according to some embodiments of the present disclosure. [Figure 3] FIG. 3 is a simplified cross-sectional view illustrating a chamber (1) and separate outlets (24, 26) of an apparatus (100) for dispensing at least two fluids, according to some embodiments of the present disclosure. [Figure 4] FIG. 4 is a simplified cross-sectional view showing a tip (7) according to some embodiments of the present disclosure. [Figure 5] FIG. 5 is a simplified top view illustrating the locking mechanism (4), according to some embodiments of the present disclosure. [Figure 6] FIG. 6 is a simplified top view illustrating a seal (5) according to some embodiments of the present disclosure. [Figure 7] FIG. 7 is a simplified cross-sectional view showing plungers (2, 3) according to some embodiments of the present disclosure. [Figure 8] FIG. 8 is an exploded simplified diagram illustrating some of the components of an apparatus (200) for dispensing at least two fluids, according to some embodiments of the present disclosure. [Figure 9]FIG. 9 is a simplified plan view illustrating some of the components of an apparatus (200) for dispensing at least two fluids, according to some embodiments of the present disclosure. [Figure 10] FIG. 10 is a simplified side view showing apparatus 200, according to some embodiments of the present disclosure. [Figure 11] FIG. 11 is a simplified cross-sectional view illustrating an apparatus 200 according to some embodiments of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0028] According to some embodiments of the present disclosure, there is provided a device for dispensing at least two different fluids, semi-solids, or combinations thereof.

[0029] Herein, the term "semi-solid" encompasses "semi-liquid" and refers to a highly viscous material with a viscosity intermediate between that of a solid and a liquid. In this disclosure, the term "fluid" refers to a material that is flowable (like a liquid), does not have a fixed shape, and offers little resistance to external stress. Non-limiting examples of fluids and semi-solids in this disclosure include dental adhesives, dental bonding systems (including hydrophilic primer mixtures and / or hydrophobic adhesive resins), dental resin composites of different viscosities, polymer-based flowable mixtures (e.g., cyanoacrylate adhesives), dental cleaning solutions, enzyme solutions, solvents, topical acids, microemulsions, topical creams, or any combination thereof.

[0030] In some embodiments, the device includes at least one chamber, the chamber including at least two independent compartments arranged parallel to one another, each compartment including an independent outlet. In some embodiments, the device includes a chip including at least two channels, each channel in fluid communication with a corresponding independent outlet. The present disclosure is based, in part, on the discovery that the devices described herein are capable of containing multiple immiscible mixtures and allowing the sequential ejection of these two independent mixtures. In some embodiments, the at least two different fluids, semi-solids, or combinations thereof have different viscosities.

[0031] According to some embodiments, the present disclosure provides a dispensing device (100, 200) for dispensing at least two different fluids, semi-solids, or combinations thereof. In some embodiments, the device is a disposable device. In some embodiments, the device is a syringe, a pen device, or a multi-function pen device.

[0032] The present disclosure is based, in part, on the discovery that the tips described herein have at least two channels of different sizes and openings, which allow them to accommodate fluids, semi-solids, or combinations thereof of different viscosities, and yet are capable of dispensing only one mixture per use.

[0033] According to some embodiments, the device comprises at least two independent plungers that are independently movable and configured to move only toward independent outlets. In some embodiments, the device comprises a locking mechanism. The present disclosure is based, in part, on the discovery that the devices described herein can allow only one compartment to be dispensed while the other compartment is locked. In some embodiments, a user of the device selects which compartment to dispense from.

[0034] According to the present disclosure, a locking mechanism should be understood to refer to any mechanism capable of locking at least one plunger when not in use. In some embodiments, the locking mechanism can lock at least one plunger from retracting after being depressed. In some embodiments, the locking mechanism can be activated multiple times while the device is in use (e.g., when the plunger is repeatedly depressed). Non-limiting examples of suitable locking mechanisms in the present disclosure include: i) a push-button locking mechanism, in which pressing the button moves one of the plungers in use and locks or engages the button to prevent retraction of the plunger and / or movement of the second plunger; ii) a locking switch button mechanism, in which the button engages a switch after being pressed; iii) a twist lock mechanism, in which the plunger in use is rotated or locked into place after being fully depressed; and iv) an anti-retraction clip or ring locking mechanism, in which an additional clip, ring, or component prevents retraction of the plunger after being fully depressed and / or prevents movement of the second plunger.

[0035] Reference is made to Figures 1 and 2, which are simplified exploded and top view illustrations of some of the components of a device (100) for dispensing at least two fluids, according to some embodiments of the present disclosure.

[0036] In some embodiments, a device (100) according to the present disclosure includes at least one chamber (1) with at least two independent compartments arranged parallel to one another, each with an independent outlet. The device includes at least two independent plungers (2, 3) that move independently and only toward the independent outlets. The device includes a locking mechanism (4) and a tip (7) with at least two channels, each in fluid communication with a corresponding independent outlet.

[0037] In some embodiments, the device (100) includes a seal (5) disposed between at least one chamber and the tip. In some embodiments, the seal (5) comprises a polymer-based seal, a resin-based seal, or a combination thereof. In some embodiments, the seal includes at least two hoops having different areas, each hoop area substantially corresponding to the area of ​​a corresponding independent outlet. In accordance with the present disclosure, the seals described herein prevent liquid material (fluid, semi-solid, or a combination thereof) from leaking from a compartment to outside the chamber.

[0038] In some embodiments, the device 100 includes a threaded mechanism 6 configured to connect at least one chamber 1 and a chip 7. In some embodiments, the chip 7 is directly connected to the at least one chamber 1. Methods for connecting chambers and chips are well known and apparent to those skilled in the art. Non-limiting examples of methods for connecting the chamber 1 and the chip 7 include a threaded connection, a click connection, and a complementary joint connection.

[0039] Please refer to Figure 3, which is a simplified illustration of a cross-sectional view of the chamber (1) and separate outlets (24, 26) of the device (100), and Figure 4, which is a simplified illustration of a cross-sectional view of the tip (7), according to some embodiments of the present disclosure.

[0040] In some embodiments, the at least one chamber (1) comprises at least two separate compartments (21, 22). In some embodiments, the at least two separate compartments have different volumes.

[0041] In some embodiments, at least one chamber (1) comprises two separate compartments (21, 22), the volume of the first compartment (21 or 22) being 1.5 cm 3 4cm from 3and the volume of the second compartment (22 or 21) is 6 cm 3 10cm from 3 is.

[0042] In some embodiments, the volume of the first compartment is 1.5 cm 3 4cm from 3 The range is 1.8cm 3 4cm from 3 , 2cm 3 4cm from 3 , 2.5cm 3 4cm from 3 , 3cm 3 4cm from 3 , 1.5cm 3 3cm from 3 , 1.8cm 3 3cm from 3 , 2cm 3 3cm from 3 , 2.5cm 3 3cm from 3 , 1.5cm 3 2cm from 3 , or 1.8 cm 3 2cm from 3 Any range between these ranges is included, with each possibility representing a separate embodiment of the present disclosure.

[0043] According to some embodiments, the volume of the second compartment is 6 cm 3 10cm from 3 The range is 6.5cm 3 10cm from 3 , 7cm 3 10cm from 3 , 8cm 3 10cm from 3 , 8.5cm 3 10cm from 3 , 9cm 3 10cm from 3 , 6cm 3 From 9.5cm 3 , 6.5cm 3 From 9.5cm 3 , 7cm 3 From 9.5cm 3, 8cm 3 From 9.5cm 3 , or 8.5 cm 3 From 9.5cm 3 Any range between these ranges is included, with each possibility representing a separate embodiment of the present disclosure.

[0044] The present disclosure is based, at least in part, on the discovery that the volumes of the at least two compartments are determined according to the selected fluids, semi-solids, or combinations thereof, and their viscosities and densities, thereby enabling the desired amounts of each fluid, semi-solid, or combination thereof to be accurately dispensed and minimizing waste.

[0045] As shown in Figure 3, each of the at least two compartments (21, 22) has a corresponding independent outlet (24, 26). In some embodiments, each independent outlet (24, 26) has a different diameter.

[0046] In some embodiments, the device (100) comprises two independent outlets (24, 26), the diameter of the first outlet (24 or 26) being in the range of 0.40 mm to 1.5 mm, and the diameter of the second outlet (26 if the first outlet is 24, or 24 if the first outlet is 26) being in the range of 0.80 mm to 3 mm.

[0047] In some embodiments, the diameter of the first outlet is in the range of 0.40 mm to 1.5 mm, 0.45 mm to 1.5 mm, 0.5 mm to 1.5 mm, 0.7 mm to 1.5 mm, 0.9 mm to 1.5 mm, 0.40 mm to 1 mm, 0.45 mm to 1 mm, 0.5 mm to 1 mm, 0.7 mm to 1 mm, or 0.9 mm to 1 mm, with any range therebetween being included, and each possibility representing a separate embodiment of the present disclosure.

[0048] In some embodiments, the diameter of the second outlet is in the range of 0.80 mm to 3 mm, 0.90 mm to 3 mm, 1 mm to 3 mm, 1.5 mm to 3 mm, 2 mm to 3 mm, 0.80 mm to 2.5 mm, 0.90 mm to 2.5 mm, 1 mm to 2.5 mm, 1.5 mm to 2.5 mm, 2 mm to 2.5 mm, 0.80 mm to 2 mm, 0.90 mm to 2 mm, 1 mm to 2 mm, or 1.5 mm to 2 mm. Any range therebetween is included, with each possibility representing a separate embodiment of the present disclosure.

[0049] In some embodiments, the at least two separate outlets have a tapered shape toward each outlet, and the present disclosure is based on the discovery that this tapered shape allows for better control of the flow of material (fluid, semi-solid, or a combination thereof) and reduces waste with each press of the device because the convergence of the outlets creates a resistance to outflow.

[0050] As shown in Figure 4, the chip (7) comprises two different channels (71, 72). In some embodiments, at least two channels (71, 72) have different areas, and the area of ​​each channel (71, 72) corresponds to the area of ​​an independent outlet (24, 26).

[0051] In some embodiments, the chip (7) comprises two independent channels (71, 72), the diameter of the first independent channel (71 or 72) being in the range of 0.40 mm to 1.5 mm, and the diameter of the second independent channel (72 if the first channel is 71, or 71 if the first channel is 72) being in the range of 0.80 mm to 3 mm.

[0052] In some embodiments, the diameter of the first channel is in the range of 0.40 mm to 1.5 mm, 0.45 mm to 1.5 mm, 0.5 mm to 1.5 mm, 0.7 mm to 1.5 mm, 0.9 mm to 1.5 mm, 0.40 mm to 1 mm, 0.45 mm to 1 mm, 0.5 mm to 1 mm, 0.7 mm to 1 mm, or 0.9 mm to 1 mm, with any range therebetween being included, and each possibility representing a separate embodiment of the present disclosure.

[0053] In some embodiments, the diameter of the second channel is in the range of 0.80 mm to 3 mm, 0.90 mm to 3 mm, 1 mm to 3 mm, 1.5 mm to 3 mm, 2 mm to 3 mm, 0.80 mm to 2.5 mm, 0.90 mm to 2.5 mm, 1 mm to 2.5 mm, 1.5 mm to 2.5 mm, 2 mm to 2.5 mm, 0.80 mm to 2 mm, 0.90 mm to 2 mm, 1 mm to 2 mm, or 1.5 mm to 2 mm. Any range therebetween is included, with each possibility representing a separate embodiment of the present disclosure.

[0054] In some embodiments, the overall diameter of the tip is in the range of 1.5 mm to 5 mm, 1.9 mm to 5 mm, 2 mm to 5 mm, 2.5 mm to 5 mm, 3 mm to 5 mm, 4 mm to 5 mm, 1.5 mm to 4.5 mm, 1.9 mm to 4.5 mm, 2 mm to 4.5 mm, 2.5 mm to 4.5 mm, 3 mm to 4.5 mm, 1.5 mm to 4 mm, 1.9 mm to 4 mm, 2 mm to 4 mm, 2.5 mm to 4 mm, or 3 mm to 4 mm. Any range between these ranges is included, with each possibility representing a separate embodiment of the present disclosure.

[0055] In some embodiments, the tip (7) is metallic, polymeric, resin-based, or a combination thereof. In some embodiments, the tip (7) is curved, preferably at an angle of 160° to 110° relative to the chamber. In some embodiments, the tip (7) is curved and fixed at the recited angles. In some embodiments, the tip is flexible and movable in only one plane (e.g., the Y plane) between the recited angular orientations. The present disclosure is based, at least in part, on the discovery that the devices described herein with flexible tips (with adjustable angles) can be directed to a selected, desired angle, for example, in the oral cavity.

[0056] 5 shows a locking mechanism (4) according to some embodiments of the present disclosure. In some embodiments, the locking mechanism (4) is a locking ring. In some embodiments, the locking mechanism is configured to lock at least one plunger when it is not in use. This mechanism works by macro-mechanical interlocking, where the locking mechanism engages and latches the slot of the unused plunger, preventing the plunger from moving downward.

[0057] In some embodiments, the locking mechanism is configured to lock at least one plunger from being retracted after being depressed, and functions by micromechanical interlocking, whereby the locking mechanism engages and latches a slot in the plunger, preventing the plunger from moving upward.

[0058] FIG. 6 shows a seal (5) according to some embodiments of the present disclosure.

[0059] In some embodiments, the device (100) includes a seal (5) disposed between at least one chamber and the tip, and in some embodiments, the seal (5) includes at least two hoops (30, 32) having different areas, each hoop area corresponding to a substantially separate outlet area.

[0060] According to some embodiments, the seal (5) includes two hoops (30, 32). In some embodiments, the diameter of the first hoop ranges from 0.40 mm to 1.5 mm, 0.45 mm to 1.5 mm, 0.5 mm to 1.5 mm, 0.7 mm to 1.5 mm, 0.9 mm to 1.5 mm, 0.40 mm to 1 mm, 0.45 mm to 1 mm, 0.5 mm to 1 mm, 0.7 mm to 1 mm, or 0.9 mm to 1 mm, including any range therebetween. Each possibility represents a separate embodiment of the present disclosure. In some embodiments, the diameter of the second hoop is in the range of 0.80 mm to 3 mm, 0.90 mm to 3 mm, 1 mm to 3 mm, 1.5 mm to 3 mm, 2 mm to 3 mm, 0.80 mm to 2.5 mm, 0.90 mm to 2.5 mm, 1 mm to 2.5 mm, 1.5 mm to 2.5 mm, 2 mm to 2.5 mm, 0.80 mm to 2 mm, 0.90 mm to 2 mm, 1 mm to 2 mm, or 1.5 mm to 2 mm, including any range therebetween, with each possibility representing a separate embodiment of the present disclosure.

[0061] In some embodiments, at least two hoops (30, 32) may have a thickness ranging from 0.4 mm to 2 mm, 0.5 mm to 2 mm, 0.7 mm to 2 mm, 0.9 mm to 2 mm, 0.40 mm to 1.5 mm, 0.45 mm to 1.5 mm, 0.5 mm to 1.5 mm, 0.7 mm to 1.5 mm, 0.9 mm to 1.5 mm, 0.40 mm to 1 mm, 0.45 mm to 1 mm, 0.5 mm to 1 mm, 0.7 mm to 1 mm, or 0.9 mm to 1 mm, including any range therebetween, with each possibility representing a separate embodiment of the present disclosure.

[0062] FIG. 7 shows one of at least two independent plungers (2, 3) according to some embodiments of the present disclosure.

[0063] In some embodiments, at least two independent plungers (2, 3) are provided with slots along at least a portion of their length, the spacing of the slots ranging from 0.5 mm to 3 mm, 1 mm to 3 mm, 1.5 mm to 3 mm, 2 mm to 3 mm, 0.5 mm to 2.9 mm, 1 mm to 2.9 mm, 1.5 mm to 2.9 mm, 2 mm to 2.9 mm, 0.5 mm to 2.5 mm, 1 mm to 2.5 mm, 1.5 mm to 2.5 mm, or 2 mm to 2.5 mm, including any range therebetween, as shown in Figure 7. Each possibility represents a separate embodiment of the present disclosure.

[0064] In some embodiments, the length of the slot is 0.04 cm of fluid, semi-solid, or combination thereof. 3 from 0.16cm 3 It is adjusted to dispense an amount in the range of

[0065] In some embodiments, at least two independent plungers (2, 3) are configured to move their slots towards independent outlets when depressed.

[0066] FIG. 8 is a simplified illustration in an exploded view of some of the components of an apparatus (200) for dispensing at least two fluids, according to some embodiments of the present disclosure.

[0067] In some embodiments of the present disclosure, the devices described herein include a button mechanism for selecting a compartment for dispensing, which when selected aligns with the plunger. In some embodiments, device (200) includes a button mechanism for selecting a compartment for dispensing, which when selected aligns with the plunger.

[0068] According to some embodiments, the button mechanism includes a push rod and an engagement knob.

[0069] In some embodiments, the device (200) comprises a push rod (9) and an engagement knob (8), the engagement knob (8) being in contact with the push rod (9) and configured to select one of at least two independent plungers (2, 3), such that the push rod only operates on the selected independent plunger, while the other plungers are locked. When the plungers are in different dispensing positions (e.g., when one chamber can be emptied first), it may be necessary to pull back the main push rod so that the selection button can catch the opposite side.

[0070] In some embodiments, device (200) further includes an additional padlock (10) on push rod (9) that prevents the two independent plungers (2, 3) from being removed from chamber (1). In some embodiments, padlock (10) is in contact with the fluid, semi-solid, or combination thereof present in each compartment.

[0071] In some embodiments, the engagement knob (8) functions like a selection button to select the left or right plunger, which causes the push rod (9) to act like a main piston, moving down and acting on the plunger. The center of the engagement knob (8) is fixed to the push rod (9). In some embodiments, the mechanism described herein functions with a "swipe"-like motion. In some embodiments, the user can swipe left or right.

[0072] In some embodiments, the present disclosure provides a system including a plurality of the devices described above.

[0073] In some embodiments, the present disclosure provides for the use of the device described above to dispense at least two different fluids, semi-solids, or combinations thereof without mixing.

[0074] In some embodiments, the present disclosure provides for the use of the above-described devices in dentistry, veterinary medicine, the pharmaceutical industry, the cosmetics industry, the construction industry, laboratory science, biomedical engineering, chemical engineering, mechanical engineering, or any combination thereof.

[0075] The terms "comprises," "comprising," "includes," "including," "having," and their conjugations mean "including but not limited to."

[0076] As used herein, the word "exemplary" means "serving as an example, instance, or illustration." Any embodiment described as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments, and does not exclude the incorporation of features from other embodiments.

[0077] As used herein, the word "optionally" means "provided in some embodiments and not provided in other embodiments." Any particular embodiment of the present disclosure may include several "optional" features, and includes those features unless they contradict each other.

[0078] As used herein, the singular forms "a," "an," and "the" are understood to include the plural unless the context clearly dictates otherwise. For example, the terms "a compound" or "at least one compound" may include a plurality of compounds, including mixtures thereof.

[0079] Throughout this application, various embodiments of the present disclosure may be presented in a range format. It should be understood that this range format description is for convenience and brevity only and should not be construed as a strict limitation on the scope of the present disclosure. Accordingly, the description of a range should be considered to have explicitly disclosed all possible subranges and individual numerical values ​​within that range. For example, a description of a "range of 1 to 6" should be considered to have explicitly disclosed subranges such as "1 to 3," "1 to 4," "1 to 5," "2 to 4," "2 to 6," "3 to 6," etc., as well as individual numerical values ​​within that range, such as 1, 2, 3, 4, 5, and 6. This applies regardless of the breadth of the range.

[0080] Where a range of values ​​is given herein, it is intended to include any number (fractional or integer) recited within the range given. The phrases "ranging / ranges between" and "ranging / ranges from" are used interchangeably herein and are intended to include the first and second numerical values ​​and all fractional and integer values ​​therebetween.

[0081] As used herein, the term "method" means any manner, means, technique, or procedure for accomplishing a given task, including, but not limited to, any manner, means, technique, or procedure that is known or that can be readily derived from known manners, means, techniques, and procedures by those skilled in the chemical, pharmacological, biological, biochemical, and medical arts.

[0082] It should be understood that certain features of the present disclosure, which are described for clarity in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, various features of the present disclosure, although described for brevity in the context of a single embodiment, may also be provided individually or in any suitable subcombination or manner compatible with other embodiments of the present disclosure. Certain features described in the context of various embodiments should not be considered essential features of that embodiment, unless the embodiment is inoperable without those features.

[0083] While this disclosure has been described in conjunction with specific embodiments, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and broad scope of the appended claims.

Claims

1. 1. A device for dispensing at least two different fluids, semi-solids, or combinations thereof, comprising: - at least one chamber comprises at least two independent compartments arranged parallel to each other, preferably with different volumes, each compartment having an independent outlet; - at least two independent plungers configured to move independently towards said independent outlets; - the locking mechanism is configured to lock at least one plunger when not in use; the chip has at least two channels, said channels preferably having different areas, each said channel in fluid communication with a corresponding independent outlet, the area of ​​each said channel corresponding to the area of ​​the independent outlet; Device.

2. 10. The device of claim 1, wherein the locking mechanism is further configured to lock at least one plunger from being retracted after being depressed. Device.

3. 3. The device of claim 1, wherein the locking mechanism comprises a push button locking mechanism, a locking switch button mechanism, a twist lock mechanism, an anti-pullback clip, a ring lock mechanism, or any combination thereof. Device.

4. 4. The device according to claim 1 or 3, wherein the at least two independent compartments comprise a first compartment and a second compartment, and preferably the first compartment has a volume of 1.5 cm ３ 4 cm from ３ and the volume of the second compartment is 6 cm ３ 10cm from ３ That is, Device.

5. 5. The device according to claim 4, wherein the diameter of the first outlet is between 0.40 mm and 1.5 mm, and the diameter of the second outlet is between 0.80 mm and 3 mm. Device.

6. 6. The device of claim 4, wherein the tip includes two independent channels, the diameter of the first independent channel being 0.40 mm to 1.5 mm, the diameter of the second independent channel being 0.80 mm to 3 mm, and the overall diameter of the tip being 1.5 mm to 5 mm. Device.

7. 7. The device according to claim 1, further comprising a seal disposed between the at least one chamber and the tip, preferably a polymer-based seal, a resin-based seal, or a combination thereof, the seal comprising at least two hoops having different areas, each hoop area corresponding to an area of ​​a substantially independent outlet. Device.

8. 8. The device of claim 1, wherein the at least two independent plungers include slots along at least a portion of their length, the slots being spaced 0.5 mm to 3 mm apart, and the length of the slots is less than 0.04 cm of the fluid, semi-solid, or combination thereof. ３ From 0.16 cm ３ configured to dispense an amount of Device.

9. 9. The device of claim 8, wherein the at least two independent plungers are configured to move through slots toward the independent outlets when depressed. Device.

10. 10. A device according to any preceding claim, including a button mechanism configured to select a compartment for dispensing, said compartment being aligned with the plunger when selected. Device.

11. 11. The device according to claim 1, wherein the tip is metallic, polymeric, resinous, or any combination thereof, and the tip is curved, preferably at an angle of 160° to 110° relative to the chamber. Device.

12. 12. The device of claim 1, wherein the at least two different fluids, semi-solids, or combinations thereof have different viscosities. Device.

13. 13. The device according to any one of claims 1 to 12, wherein the device is a disposable device, preferably a syringe, a pen device, or a multi-function pen device. Device.

14. A system comprising a plurality of devices each comprising an apparatus according to any one of claims 1 to 13.

15. Use of a device according to any one of claims 1 to 13 in dentistry, veterinary medicine, the pharmaceutical industry, the cosmetics industry, the construction industry, laboratory science, biomedical engineering, chemical engineering, mechanical engineering or any combination thereof, preferably for dispensing at least two different fluids, semi-solids or combinations thereof, without mixing said at least two different fluids, semi-solids or combinations thereof.

16. 15. Use of the system of claim 14 in dentistry, veterinary medicine, the pharmaceutical industry, the cosmetics industry, the construction industry, laboratory science, biomedical engineering, chemical engineering, mechanical engineering, or any combination thereof, preferably for dispensing at least two different fluids, semi-solids, or combinations thereof, without mixing said at least two different fluids, semi-solids, or combinations thereof.

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