Description:
PREAMBLE TO THE DESCRIPTION

The following specification particularly describes the invention and the manner in which is to be performed.

A FLUID FLUSH DISPENSING APPARATUS

CROSS REFERENCE TO RELATED APPLICATION
This application claims priority from Indian patent application No. 202341044122, filed June 30, 2023, the content of which is incorporated herein by reference in its entirety.
TECHNICAL FIELD
[0001] Embodiments of the present disclosure relate generally to medical devices, and more particularly relate to a fluid flush dispensing apparatus.
BACKGROUND
[0002] Generally, syringe assemblies are well known in the medical field for dispensing fluids, such as medication. A conventional syringe includes a syringe barrel with an opening at one end and a plunger mechanism disposed through the other end. Similar to syringe a liquid flusher syringe is a specialized device designed to remove blockages in Intravenous (IV) sets, intravenous syringe needles, and intravenous needles, as well as for cleaning medical needles. It functions as a syringe prefilled with saline water or other appropriate liquids for administration into the body. Additionally, these prefilled syringes are sometimes utilized for injecting medicine in operation theatres.
[0003] Conventionally, existing liquid flushers operate by prefilling the syringe or cylinder with a fixed quantity of liquid. These flushers are then connected to blocked IV sets, IV needles, or regular needles obstructed by coagulated blood, mucus, or serum. The liquid is manually flushed out by pulling and pushing the cylinder and piston of the syringe. However, due to the unknown amount of force required to clear the blockage, the exact volume of liquid flushed out cannot be controlled. Users must rely on their ability to control the amount of liquid flushed, which can be a single or multiple flushes depending on their proficiency. The approximate amount of liquid flushed is determined by the smoothness of the flow.
[0004] Further, conventional flush syringe assemblies disclose ability to generate pulsatile movement of the plunger rod within a syringe barrel, while preventing excessive pressure on the catheter. These assemblies consist of a syringe barrel containing a chamber with flush solution, a plunger rod with a stopper and a pulsing element, and a thumb press attached to the plunger rod with a compressible pulse control element. The interaction between the first and second pulsing elements creates an engagement force that produces pulsatile movement of the plunger rod. The compressible pulse control element can be compressed to generate a greater compression force than the engagement force of the pulsing elements. Another conventional syringe- based device discloses a housing with a port and an actuator mechanism comprising a first member and a second member that can move within the housing. The first member of the conventional syringe- based device contains a syringe body and a plunger with a seal, while the second member includes a seal, a channel, and a valve connected to the channel.
[0005] However, the conventional devices may lack precise control. For example, the volume of liquid flushed from the cylinder cannot be accurately controlled or stopped at a specific volume using syringe or cylinder and piston. Further, the conventional devices may include uncontrolled pressure, for example, if excessive pressure is applied to flush the liquid from the cylinder, there is no control over the force, speed, and volume of the liquid expelled. Furthermore, the conventional devices may possess risk of damage, for example, when a high force exerted on the liquid receiver wall during flushing poses a risk of damaging the arteries, veins, or body tissues in the case of human use. Additionally, the conventional devices are disconnecting and have spilling issue. For example, exceeding the connection force between the flusher and the receiver tube due to uncontrolled applied force can result in disconnection, causing all the liquid in the flusher to spill out and become exposed to the environment. Hence, the conventional liquid flusher devices have limitations in terms of controlling the volume of liquid flushed, pressure regulation, potential harm to the body, and the risk of disconnection and spills.
[0006] Consequently, there is a need in the art for an improved fluid flush dispensing apparatus, to address at least the aforementioned issues in the prior art.

SUMMARY
[0007] This summary is provided to introduce a selection of concepts, in a simple manner, which is further described in the detailed description of the disclosure. This summary is neither intended to identify key or essential inventive concepts of the subject matter nor to determine the scope of the disclosure.
[0008] An aspect of the present disclosure provides a fluid flush dispensing apparatus. The fluid flush dispensing apparatus includes a barrel comprised of a side wall with an inside surface forming a barrel reservoir for retaining a fluid, a first open proximal end, and a first distal end. The barrel includes at least one finger grip at the first open proximal end, protruding outwards from the side wall of the barrel. The at least one finger grip is provided with a finger grip notch and a circular notch. A pair of movable wings comprising a stopper wing and an alignment wing, connected at the sides of the first open proximal end, by a thin flexible joint. The stopper wing includes a plurality of sharp stopper edges and at least one cylindrical notch locked to the circular notch of the at least one finger grip. The alignment wing includes at least one locking notch locked to the finger grip notch and at least one alignment notch. An exit cylinder extended at the first distal end of the barrel. The exit cylinder is tapered for holding a syringe needle and a cylindrical cap. A flat ring having a ring opening, free-rotatably coupled to the first open proximal end of the barrel. The flat ring is rotatably coupled between a ring stopper and the at least one finger grip in the barrel. The flat ring includes a plurality of curved rings finger grip positioned radially towards the outward edge of the flat ring for providing a grip to fingers of a user. A plunger rod assembly slidably disposed within the barrel reservoir of the barrel.
[0009] The plunger rod assembly includes a second distal end a second proximity end, and a plunger shaft extending from the second distal end to the second proximal end. A plunger rod body includes a plurality of elongated portions having a plurality of stoppers. The plurality of stoppers is positioned diagonally on both sides of the plurality of elongated portions, with an offset of equal distance between the plurality of elongated portions, starting from the second distal end and ends at the second proximal end of the plunger rod assembly. The plunger rod assembly includes a circular slot extended at the second distal end of the plunger rod assembly. Further, the plunger rod assembly at least one finger grip coupled to the second proximal end of the plunger rod assembly. The plunger rod assembly is configured to provide a plurality of controlled flush of the fluid in the barrel reservoir, by pushing and rotating the plunger shaft, by a user, towards the first distal end of the barrel, for a controlled contact of the plurality of stoppers in the plurality of elongated portions with the stopper wing in the barrel.
[0010] To further clarify the advantages and features of the present disclosure, a more particular description of the disclosure will follow by reference to specific embodiments thereof, which are illustrated in the appended figures. It is to be appreciated that these figures depict only typical embodiments of the disclosure and are therefore not to be considered limiting in scope. The disclosure will be described and explained with additional specificity and detail with the appended figures.
BRIEF DESCRIPTION OF THE ACCOMPANYING DIAGRAMS
[0011] The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate exemplary embodiments and, together with the description, serve to explain the disclosed principles. In the figures, the left- most digit(s) of a reference number identifies the figure in which the reference number first appears. The same numbers are used throughout the figures to reference like features and components. Some embodiments of system and/or methods in accordance with embodiments of the present subject matter are now described, by way of example only, and with reference to the accompanying figures, in which:
[0012] FIG. 1A illustrates a front view of a controlled flush syringe assembly, in accordance with some embodiments of the present disclosure;
[0013] FIG. 1B illustrates a front view of a syringe barrel of controlled flush syringe assembly, in accordance with some embodiments of the present disclosure;
[0014] FIG. 1C illustrates an isometric view of syringe barrel of a controlled flush syringe assembly, in accordance with some embodiments of the present disclosure;
[0015] FIG. 1D illustrates a top view of a syringe barrel of controlled flush syringe assembly, in accordance with some embodiments of the present disclosure;
[0016] FIG. 1E illustrates an isometric view of a syringe barrel with closed wings, in accordance with some embodiments of the present disclosure;
[0017] FIG. 1F illustrates a top view of a syringe barrel with closed wings, in accordance with some embodiments of present disclosure;
[0018] FIG. 1G illustrates an isometric view of a syringe barrel with open wings , in accordance with some embodiments of present disclosure;
[0019] FIG. 1H illustrates a top view of a syringe barrel with open wings, in accordance with some embodiments of present disclosure;
[0020] FIG. 1I illustrates a top view of a syringe barrel with closed wings , in accordance with some embodiments of present disclosure;
[0021] FIG. 2A illustrates a top view of a flat ring, in accordance with some embodiments of present disclosure;
[0022] FIG. 2B illustrates a front view of a flat ring, in accordance with some embodiments of present disclosure;
[0023] FIG. 3A illustrates a front view of a multi volume control plunger, in accordance with some embodiments of present disclosure;
[0024] FIG. 3B illustrates a top view of a multi volume control plunger, in accordance with some embodiments of present disclosure;
[0025] FIG. 3C illustrates a bottom isometric view of a multi volume control plunger, in accordance with some embodiments of present disclosure;
[0026] FIG. 3D illustrates a top isometric view of a multi volume control plunger, in accordance with some embodiments of present disclosure;
[0027] FIG. 3E illustrates a front view of a plunger with limited stoppers, in accordance with some embodiments of present disclosure;
[0028] FIG. 3F illustrates a right view of a plunger with limited stoppers, in accordance with some embodiments of present disclosure;
[0029] FIG. 3G illustrates an isometric view of a plunger with limited stoppers, in accordance with some embodiments of present disclosure;
[0030] FIG. 3H illustrates a top view of a plunger with limited stoppers, in accordance with some embodiments of present disclosure;
[0031] FIG. 4A illustrates a front view of an exit blocker, in accordance with some embodiments of present disclosure;
[0032] FIG. 4B illustrates a top view of an exit blocker, in accordance with some embodiments of present disclosure;
[0033] FIG. 5A illustrates a top view of a cylindrical cap, in accordance with some embodiments of present disclosure;
[0034] FIG. 5B illustrates an isometric view of a cylindrical cap, in accordance with some embodiments of present disclosure;
[0035] FIG. 6A illustrates an isometric view of a nozzle cap, in accordance with some embodiments of present disclosure;
[0036] FIG. 6B illustrates a top view of a nozzle cap, in accordance with some embodiments of present disclosure;
[0037] FIG. 7A illustrates a top view of an anti-slide metal plate, in accordance with some embodiments of present disclosure;
[0038] FIG. 7B illustrates an isometric view of an anti-slide metal plate, in accordance with some embodiments of present disclosure;
[0039] FIG. 8 illustrates a top view of a piston, in accordance with some embodiments of present disclosure;
[0040] FIG. 9A illustrates a front view of a controlled flush syringe assembly with open wings, in accordance with some embodiments of present disclosure;
[0041] FIG. 9B illustrates a front view of a controlled flush syringe assembly with wings folded by 90 degrees, in accordance with some embodiments of present disclosure;
[0042] FIG. 9C illustrates a front view of a controlled flush syringe assembly with wings folded more than 110 degrees, in accordance with some embodiments of present disclosure;
[0043] FIG. 9D illustrates a front view of a controlled flush syringe assembly with wings folded by 180 degrees, in accordance with some embodiments of present disclosure;
[0044] FIG. 9E illustrates a front view of a controlled flush syringe assembly with unfolding of only stopper wings, in accordance with some embodiments of present disclosure;
[0045] FIG. 10A illustrates an isometric view of a controlled flush syringe assembly with unfolded stopping rings, in accordance with some embodiments of present disclosure;
[0046] FIG. 10B illustrates a top view of a controlled flush syringe assembly with unfolded stopping rings, in accordance with some embodiments of present disclosure;
[0047] FIG. 10C illustrates a front view of a controlled flush syringe assembly with unfolded stopping rings, in accordance with some embodiments of present disclosure;
[0048] FIG. 10D illustrates a right view of a controlled flush syringe assembly with unfolded stopping rings, in accordance with some embodiments of present disclosure;
[0049] FIG. 11A illustrates an isometric view of a controlled flush assembly with open wings, in accordance with some embodiments of present disclosure;
[0050] FIG. 11B illustrates a top view of a controlled flush assembly with open wings, in accordance with some embodiments of present disclosure;
[0051] FIG. 11C illustrates a front view of a controlled flush assembly with open wings and distal end nozzle cap, in accordance with some embodiments of present disclosure;
[0052] FIG. 11D illustrates a front view of an open wings controlled flush assembly without distal end nozzle cap, in accordance with some embodiments of present disclosure;
[0053] FIG. 11E illustrates a left view of a controlled flush assembly with open wings, in accordance with some embodiments of present disclosure;
[0054] FIG. 11F illustrates an isometric section view of distal end of syringe with threads of a controlled flush assembly, in accordance with some embodiments of present disclosure;
[0055] FIG. 12A illustrates an isometric view of a syringe barrel with a radial locking slot in a finger grip opposite to each other to support barrel locking ring, in accordance with some embodiments of present disclosure;
[0056] FIG. 12B illustrates a top view of a syringe barrel with a radial locking slot in a finger grip opposite to each other, in accordance with some embodiments of present disclosure;
[0057] FIGs. 13A, 13B, 13C and 13D illustrate an isometric view, a top view, a front view, and a side view, of a barrel locking ring, respectively in accordance with some embodiments of present disclosure ;
[0058] FIG. 14A illustrates a front view of a barrel locking ring and syringe barrel assembly with opened stopper wings, respectively in accordance with some embodiments of present disclosure;
[0059] FIG. 14B illustrates a side view of a barrel locking ring and syringe barrel assembly with closed stopper wings, respectively in accordance with some embodiments of present disclosure;
[0060] FIG. 14C illustrates an isometric view of a barrel locking ring and syringe barrel assembly with opened stopper wings, respectively in accordance with some embodiments of present disclosure; and
[0061] FIG. 14D illustrates a top view of a barrel locking ring and syringe barrel assembly with opened stopper wings, respectively in accordance with some embodiments of present disclosure.
[0062] Further, those skilled in the art will appreciate that elements in the figures are illustrated for simplicity and may not have necessarily been drawn to scale. Furthermore, in terms of the construction of the device, one or more components of the device may have been represented in the figures by conventional symbols, and the figures may show only those specific details that are pertinent to understanding the embodiments of the present disclosure so as not to obscure the figures with details that will be readily apparent to those skilled in the art having the benefit of the description herein.

DETAILED DESCRIPTION
[0063] For the purpose of promoting an understanding of the principles of the disclosure, reference will now be made to the embodiment illustrated in the figures and specific language will be used to describe them. It will nevertheless be understood that no limitation of the scope of the disclosure is thereby intended. Such alterations and further modifications in the illustrated system, and such further applications of the principles of the disclosure as would normally occur to those skilled in the art are to be construed as being within the scope of the present disclosure. It will be understood by those skilled in the art that the foregoing general description and the following detailed description are exemplary and explanatory of the disclosure and are not intended to be restrictive thereof.
[0064] In the present document, the word “exemplary” is used herein to mean “serving as an example, instance, or illustration”. Any embodiment or implementation of the present subject matter described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.
[0065] While the disclosure is susceptible to various modifications and alternative forms, specific embodiment thereof has been shown by way of example in the drawings and will be described in detail below. It should be understood, however that it is not intended to limit the disclosure to the forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternative falling within the scope of the disclosure.
[0066] The terms “comprises”, “comprising”, “includes”, “including” or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a setup, device or method that includes a list of components or steps does not include only those components or steps but may include other components or steps not expressly listed or inherent to such setup or device or method. In other words, one or more elements in a system or apparatus proceeded by “comprises… a” does not, without more constraints, preclude the existence of other elements or additional elements in the system or method.
[0067] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure belongs. The system, methods, and examples provided herein are only illustrative and not intended to be limiting.
[0068] Embodiments of the present disclosure provides an improved fluid flush dispensing apparatus.
[0069] Referring now to the drawings, and more particularly to FIGs. 1A through FIG. 11F where similar reference characters denote corresponding features consistently throughout the figures, there are shown preferred embodiments and these embodiments are described in the context of the following exemplary system and/or method.
[0070] FIG. 1A illustrates a front view of a fluid flush dispensing apparatus, in accordance with some embodiments of the present disclosure. The controlled flush syringe assembly 100 in the form of a syringe includes a barrel , , and a plunger rod. In an embodiment, the barrel may include a side wall with an inside surface forming a chamber for retaining fluid. The fluid may include, but are not limited to, normal saline solution, heparin solution, sterile water, sterile water, antibiotic solution, antimicrobial solution, sterile flush solutions with additives, and the like. The controlled flush syringe assembly 100 may be used to draw and flush any fluid, liquid, and gas.
[0071] FIG. 1B illustrates a front view of a syringe barrel of controlled flush syringe assembly, in accordance with some embodiments of the present disclosure. Further, the syringe barrel 102 may include a barrel reservoir 104 capable of carrying one or more fluids, such as, but not limited to normal saline solution, heparin solution, sterile water, antibiotic solution, antimicrobial solution, sterile flush solution, and the like. The syringe barrel 102 may also include first open proximal end 106 and a first distal end 108. The barrel 102 includes at least one finger grips 110, 110a, at the first proximal end 106, protruding outwards from the side wall of the barrel 102. Each of the at least one finger grips 110, with a finger grip notch 110a and a circular notch 110b.Further, the barrel 102 may include a circular protrusion element at the first proximal end, under the at least two finger grips 110, 110a, and spaced with a pre-defined dimension in a distal direction. Further, the syringe barrel 102 also includes one or more half wings, such as, but not limited to, stopper wing 112, aligning wing 114. A movement of wings is facilitated by a thin flexible joint 116, the thin flexible joint 116 is capable of moving the wings from 0 to 180 degrees to the plunger of the controlled flush syringe assembly 100.
[0072] FIG. 1C illustrates an isometric view of syringe barrel 102 of a controlled flush syringe assembly 100, in accordance with some embodiments of the present disclosure. The syringe barrel 102 includes one or more wings, such as, but not limited to, aligning wing 114, stopper wing 112. Thin flexible joint 116 is the connecting part which mobilizes the wings from 0 to 180 degrees. Further, the aligning wing 114 includes locking notch 114a and aligning notch 114b. Furthermore, the syringe barrel 102 also includes one or more circular notches 110b, one or more cylindrical notches 112b on the on the stopper wing 112. The cylindrical notch 112b fits firmly into circular notch 110b whenever the stopper wing 112 folds 180 degrees inward.
[0073] FIG. 1D illustrates a top view of a syringe barrel 102 of controlled flush syringe assembly 100, in accordance with some embodiments of the present disclosure. Referring to FIG. 1D, all the features of the syringe barrel 102 are similar to the features described in the FIG. 1C. In an embodiment, the syringe barrel 102 includes an exit hole 120, an exit cylinder 122 and a connecting cylinder 120a. The exit hole allows the liquid or air in the barrel reservoir 104 to exit the syringe barrel 102. The exit cylinder 122 and the connecting cylinder 120a are tapered for holding one or more syringe needles and one or more nozzle caps. Further, a connecting cylinder 120b may include an internal thread to be threaded with the syringe needles and one or more catheters.
[0074] FIG. 1E illustrates an isometric view of a syringe barrel 102 with closed wings, in accordance with some embodiments of the present disclosure. FIG. 1F illustrates a top view of a syringe barrel 102 with closed wings, in accordance with some embodiments of present disclosure.FIG. 1G illustrates an isometric view of a syringe barrel 102 with open wings, in accordance with some embodiments of present disclosure. The syringe barrel 102 is configured to hold a needle and a nozzle cap at distal end 108 of the syringe barrel 102. A connecting cylinder 120a, 120b forms the continuous lower part of the syringe barrel 102 extending from barrel end 124, The exit cylinder 122 and connecting cylinder 120a, 120b are tapered and thread respectively for holding one or more syringe needles and one or more cylindrical caps. The present embodiment of the syringe barrel 102 also includes thick naming sticker-ring stopper 118, acts as barrier for flat ring and prevents flat ring from falling down.
[0075] FIG. 1H illustrates a top view of a syringe barrel 102 with open wings, in accordance with some embodiments of present disclosure. FIG. 1I illustrates a top view of a syringe barrel 102 with closed wings, in accordance with some embodiments of present disclosure.
[0076] FIG. 2A illustrates a top view of a flat ring 200, in accordance with some embodiments of present disclosure. The flat ring 200 has one or more curved rings finger grips 204, placed radially towards the outward edge of the flat ring 200, one or more curved rings finger grips 204 are capable of providing smooth resistance between the finger and the flat ring 200 during the plunger rotation. FIG. 2B illustrates a front view of a flat ring 200, in accordance with some embodiments of present disclosure.
[0077] FIG. 3A illustrates a front view of a multi volume control plunger 300, in accordance with some embodiments of present disclosure. The plunger 300 includes one or more elongated portions such as, but not limited to elongated portion 308a, elongated portion 308b, elongated portion 308c, elongated portion 308d. Plurality of elongated portions 308a-308d includes plurality of diagonal stoppers 310 placed diagonally (zigzag design) on both sides of one or more elongated portions 308a-308d with an offset of equal distance between each diagonal notches 310 starting from the distal end 302 of the plunger 300 and ends close to the proximal end 304 of the plunger 300.The plurality of diagonal stoppers 310 on one or more elongated portions 308a-308d are provided with variable offset distance. One or more elongated portions 308a-308d when aligned between the right stopper edge 112a and left stopper edge 112a of the stopper wing 112a and the plunger 300 pushed into the syringe barrel, it flushes out different volume of liquid on each press on the plunger 300. The number of elongated portions 308a-308d on the plunger 300 may be increased with bigger diameter plunger 300. The plunger 300 is also provided with circular notch 312 and 302 of the plunger 300 for rotating the plunger 300 for one or more elongated portions 308a-308d to align with the stopper wings 112 for different volume flush. Furthermore, the elongated portion edge 205 diameter is slightly bigger than the diameter of the diagonal stopper on one or more elongated portions 308a-308d. The difference in diameter provides ease of rotation during plush rotation without being obstructed by one or more aligning notches of the aligning wing 114. Further, the plunger 300 is provided with thin Stopping Disc 312 close to the proximal end 304 of the plunger 300. The stopping disc 312 brakes when it is pressed into the syringe barrel 102 beyond the thin stopping disc 312 breakage and it is an indication of the plunger 300 damage. The plunger 300 is provided with parallel finger grip 314 to provide resistance to the finger during the plunger 300 rotation. Furthermore, the plunger 300 is provided with radially extended holder shaft 318, the shaft 318 presses at the center of the anti-slide metal plate which placed between the piston and the plunger 300, this press causes slight cone shape in the anti-slide metal plate this makes it easy to slide in the syringe barrel 100 towards the Distal end 108 of the syringe and as it slides it causes a damage to the syringe barrel 102.
[0078] FIG. 3B illustrates a top view of a multi volume control plunger 300, in accordance with some embodiments of present disclosure. FIG. 3C illustrates a bottom isometric view of a multi volume control plunger 300, in accordance with some embodiments of present disclosure. FIG. 3D illustrates a top isometric view of a multi volume control plunger 300, in accordance with some embodiments of present disclosure. FIG. 3E illustrates a front view of a plunger 300 with limited stoppers, in accordance with some embodiments of present disclosure. FIG. 3F illustrates a right view of a plunger 300 with limited stoppers, in accordance with some embodiments of present disclosure. FIG. 3G illustrates an isometric view of a plunger 300 with limited stoppers, in accordance with some embodiments of present disclosure. FIG. 3H illustrates a top view of a plunger 300 with limited stoppers, in accordance with some embodiments of present disclosure.
[0079] FIG. 4A illustrates a front view of an exit blocker 400, in accordance with some embodiments of present disclosure. The exit blocker 400 has a Sharp cone shaft 402 to damages the piston, the Fixed Metal plate 406 with sharp edges to damage the syringe barrel 102 and the exit hole shaft 404 to block the exit hole 120 When the piston approaches the distal end 145 of the syringe barrel 102, the piston pushes the exit blocker 501 to the distal end 145 of the syringe, when the exit blocker 501 stops moving, the Sharp cone shaft 505 that pierces the piston 701 damaging the piston 701.The exit hole shaft 507 covers the exit hole 133 from returning liquid back to the syringe barrel 100. The exit hole shaft 507 has a liquid exit grove, which allows the liquid in the reservoir to exit the syringe barrel 100 without causing a block to the liquid flow. FIG. 4B illustrates a top view of an exit blocker 400, in accordance with some embodiments of present disclosure.
[0080] FIG. 5A illustrates a top view of a cylindrical cap 500, in accordance with some embodiments of present disclosure. FIG. 5B illustrates an isometric view of a cylindrical cap 500, in accordance with some embodiments of present disclosure. The cylindrical cap 500 includes one or more cylinders such as, for example, but not limited to, a tapered inner cylinder which slides over the exit cylinder 122 of the syringe barrel 102, a tapered outer cylinder slides over the connecting cylinder 120 of the syringe barrel. This tapered inner cylinder may also have threads to get locked with threads of the connecting cylinder 120.
[0081] FIG. 6A illustrates an isometric view of a nozzle cap 600, in accordance with some embodiments of present disclosure. The nozzle cap 600 includes one or more cylinders such as, but not limited, inner cylinder 606 which slides over the exit cylinder 122 of the syringe barrel 102 and an outer cylinder 608. the outer diameter of the inner cylinder 606 includes one or more semi radial threads 612 opposite to each other and the outer cylinder 608 has one or more finger grips 604. The semi radial threads 612 gets threaded with the thread of the connecting cylinder 120 and provides an airtight connection between the nozzle cap 600 and the exit cylinder 122. FIG. 6B illustrates a top view of a nozzle cap 600, in accordance with some embodiments of present disclosure.
[0082] FIG. 7A illustrates a top view of an anti-slide metal plate 700, in accordance with some embodiments of present disclosure. The anti-slide metal plate 700 acts as a stopper to the piston and as a damager of the syringe barrel 102 and anti-slide metal plate 700 is placed between the plunger 300 and the piston. The anti-slide metal plate 700 includes a through hole 702 capable of easily passing through a piston holder. When the plunger inside the barrel is pushed towards the distal end of the syringe barrel, the force of the radially extended shaft creates a small bend as cone shape in the anti-slide metal plate which decrease the diameter of the sharp edges of the anti-slide metal plate, this allows the anti-slide metal plate to slide inside the syringe barrel causing scratches inside the syringe barrel. When the plunger is pulled outwards, the plunger doesn’t have direct pulling force on the anti-slide metal plate instead it pulls the piston and the piston pushes the anti-slide metal plate outward without causing a bend as cone shape, this non formation of a cone will not decrease the diameter of the sharp edges of the anti-slide metal plate, this prevents the piston from moving outwards. the metal plate is not limited to the square, it can also be in triangle or circular and other shapes with sharp edges. FIG. 7B illustrates an isometric view of an anti-slide metal plate 600, in accordance with some embodiments of present disclosure.
[0083] FIG. 8 illustrates a top view of a piston 700, in accordance with some embodiments of present disclosure.
[0084] FIG. 9A illustrates a front view of a controlled flush syringe assembly 100 with open wings, in accordance with some embodiments of present disclosure. FIG. 9B illustrates a front view of a controlled flush syringe assembly 100 with wings folded by 90 degrees, in accordance with some embodiments of present disclosure. FIG. 9C illustrates a front view of a controlled flush syringe assembly 100 with wings folded more than 110 degrees, in accordance with some embodiments of present disclosure. FIG. 9D illustrates a front view of a controlled flush syringe assembly 100 with wings folded by 180 degrees, in accordance with some embodiments of present disclosure. FIG. 9E illustrates a front view of a controlled flush syringe assembly 100 with unfolding of only stopper wings, in accordance with some embodiments of present disclosure.
[0085] FIG. 10A illustrates an isometric view of a controlled flush syringe assembly 100 with unfolded stopping rings 1012, in accordance with some embodiments of present disclosure. The syringe barrel 102 includes one or more stopping rings 1012 connected to the syringe barrel 102 with thin flexible joint 1020, wherein the stopping rings 1012 may include one or more stopper edges, such as for example, but not limited to, left stopper edge 1006, right stopper edge 1008. The stopper edges may include one or more locking notches 1014, the one or more stopping rings 1012, when closed in circular fashion, fits firmly into one or more locking slots beneath a finger grip 1010 of the syringe barrel 102, such as, for example, but not limited to, left locking slot 1002, right locking slot 1004. The locking of one or more locking edges 1006,1008 takes place using one or more locking notches 1014. The locking notches 1014 form the integral part of the locking mechanism of the flush syringe assembly 100. The syringe barrel 102 may also include a finger grip 1010 at proximal end. Further, the syringe barrel 102 may also include an exit nozzle 1016 at the distal end of the syringe, a liquid will be flushed out of the syringe barrel 102 using an exit nozzle 1016.
[0086] FIG. 10B illustrates a top view of a controlled flush syringe assembly 100 with unfolded stopping rings 1012, in accordance with some embodiments of present disclosure. FIG. 10C illustrates a front view of a controlled flush syringe assembly 100 with unfolded stopping rings 1012, in accordance with some embodiments of present disclosure. FIG. 10D illustrates a right view of a controlled flush syringe assembly 100 with unfolded stopping rings 1012, in accordance with some embodiments of present disclosure.
[0087] FIG. 11A illustrates an isometric view of a controlled flush assembly 100 with open wings 1102, in accordance with some embodiments of present disclosure. The assembly 100 may include a syringe barrel 102, wherein the syringe barrel 102 includes one or more aligning wings 1102 connected to a finger grip 1110 with a thin flexible joint 1104. The thin flexible joint 1104 is capable of folding from 0 to 180 degrees. Further the thin flexible joint 1104 is used for closing the open wings 1102. The finger grip 1110 may include one or more rectangular notches 1106, used for locking the open aligning wings 1102. Further, the one or more aligning wings 1102 include one or more locking notches 1108 on either outer side. The locking notches 1108 fits firmly into one or more rectangular notches 1106. The syringe barrel 102 may also include multiple threads 1112 on the nozzle of the syringe. The threads 1112 may be used for attaching a needle or inserting the syringe into catheter for clearing the intravenous blockages.
[0088] FIG. 11B illustrates a top view of a controlled flush assembly 100 with open wings 1102, in accordance with some embodiments of present disclosure. FIG. 11C illustrates a front view of a controlled flush assembly 100 with open wings 1102 and distal end nozzle cap, in accordance with some embodiments of present disclosure. FIG. 11D illustrates a front view of an open wings 1102 controlled flush assembly 100 without distal end nozzle cap, in accordance with some embodiments of present disclosure. FIG. 11E illustrates a left view of a controlled flush assembly 100 with open wings 1102, in accordance with some embodiments of present disclosure. FIG. 11F illustrates an isometric section view of distal end of syringe with threads of a controlled flush assembly 100, in accordance with some embodiments of present disclosure. For example, the threads on the exit cylinder may eliminate the connecting cylinder as an extra material, in which case this threads may be used for new design syringe needles, catheters and IV sets, and the like.
[0089] FIG. 12A illustrates an isometric view of a syringe barrel 1200 with a radial locking slot in a finger grip opposite to each other to support barrel locking ring, in accordance with some embodiments of present disclosure. FIG. 12B illustrates a top view of a syringe barrel 1200 with a radial locking slot in a finger grip opposite to each other, in accordance with some embodiments of present disclosure. The application of the barrel 1200 includes pre-filled syringes made of cyclic olefin copolymer (COC). Advanced Polymers replace glass and enhance performance over other syringe materials. These injection-molded syringes offer exceptional moisture barrier and chemical resistance, along with excellent clarity. The moisture barrier of COC syringes extends the shelf life of some pharmaceutical solutions over three years, said to represent an achievement that may not be met by competing thermoplastics such as polycarbonate or polypropylene which are used today in less demanding syringe applications. The drug maintains its purity because COC is biologically inert with very low extractables. COC resin also offers excellent biocompatibility.
[0090] Using the COC material-based syringes are hard in structure and providing flexible joint wings or slidable wings in the COC base syringes is not possible. In order to achieve the requirement of providing the flexible wings or slidable wings can be achieved using the combination of normal PP POP and COC
[0091] In an embodiment, the barrel 1200 includes a radial locking slot in a finger grip 1203 opposite to each other to support barrel locking ring 1201. In the embodiment, the barrel 1200 includes the radial locking slot 1205 may be suitable for the syringe barrel 1201 made of glass, COC, COP materials, and the like.
[0092] FIGs. 13A, 13B, 13C and 13D illustrate an isometric view, a top view, a front view, and a side view, of a barrel locking ring 1201, respectively in accordance with some embodiments of present disclosure. The barrel locking ring 1201 includes the locking arm 1315 with a locking arm notch 1317 which may be placed at for example, 180 degree apart radially in the barrel locking ring 1301, the barrel locking ring 1301 may include stopper wings 1305 connected with a thin flexible joint 1303 which controls the plunger movement, this locking arm 1315 with locking arm notch 1317 locks with the radial locking slot 1205 of the barrel 1200. Further, the barrel locking ring 1301 may include a radially aligned slot to support the formation of locking arm notch 1317.
[0093] For example, a foldable stoper wing may be connected to the barrel locking ring 1301 via a thin joint part of manufacturing. The barrel locking ring 1301 may be further assembled onto the syringe barrel 1200. Further, the locking arm 1315 of the barrel locking ring 1317 may be locked with a radial locking slot.
[0094] FIG. 14A illustrates a front view of a barrel locking ring and syringe barrel assembly with opened stopper wings, respectively in accordance with some embodiments of present disclosure. FIG. 14B illustrates a side view of a barrel locking ring and syringe barrel assembly with closed stopper wings, respectively in accordance with some embodiments of present disclosure. FIG. 14C illustrates an isometric view of a barrel locking ring and syringe barrel assembly with opened stopper wings, respectively in accordance with some embodiments of present disclosure. FIG. 14D illustrates a top view of a barrel locking ring and syringe barrel assembly with opened stopper wings, respectively in accordance with some embodiments of present disclosure.
[0095] In an embodiment, a locking arm 1315 may be slidable placed into the radial locking slot 1305 of the barrel 1200 and continued to press the barrel locking ring 1201 against the syringe barrel 1200 until the locking arm notch 1317 may be locked with radial locking slot 1205 of the barrel 1200. The stopper rings 1301 are inward foldable by, for example, 180 degree via thing flexible joint 1303.
[0096] A description of an embodiment with several components in communication with each other does not imply that all such components are required. On the contrary, a variety of optional components are described to illustrate the wide variety of possible embodiments of the invention. When a single device or article is described herein, it will be apparent that more than one device/article (whether they cooperate) may be used in place of a single device/article. Similarly, where more than one device or article is described herein (whether or not they cooperate), it will be apparent that a single device/article may be used in place of the more than one device or article or a different number of devices/articles may be used instead of the shown number of devices or programs. The functionality and/or the features of a device may be alternatively embodied by one or more other devices which are not explicitly described as having such functionality/features. Thus, other embodiments of the invention need not include the device itself.
[0097] The specification has described a controlled flush syringe assembly for controlled flushing of fluid. The illustrated steps are set out to explain the exemplary embodiments shown, and it should be anticipated that ongoing technological development will change the manner in which particular functions are performed. These examples are presented herein for purposes of illustration, and not limitation. Further, the boundaries of the functional building blocks have been arbitrarily defined herein for the convenience of the description. Alternative boundaries can be defined so long as the specified functions and relationships thereof are appropriately performed.
[0098] Alternatives (including equivalents, extensions, variations, deviations, etc., of those described herein) will be apparent to persons skilled in the relevant art(s) based on the teachings contained herein. Such alternatives fall within the scope and spirit of the disclosed embodiments. Also, the words "comprising," "having," "containing," and "including," and other similar forms are intended to be equivalent in meaning and be open-ended in that an item or items following any one of these words is not meant to be an exhaustive listing of such item or items, or meant to be limited to only the listed item or items. It must also be noted that as used herein and in the appended claims, the singular forms “a,” “an,” and “the” include plural references unless the context clearly dictates otherwise.
[0099] Finally, the language used in the specification has been principally selected for readability and instructional purposes, and it may not have been selected to delineate or circumscribe the inventive subject matter. It is therefore intended that the scope of the invention be limited not by this detailed description, but rather by any claims that issue on an application based here on. Accordingly, the embodiments of the present invention are intended to be illustrative, but not limiting, of the scope of the invention, which is set forth in the following claims.

, Claims:Patent Claims
We claim:
1. A fluid flush dispensing apparatus (100), comprising:
a barrel (102) comprised of a side wall with an inside surface forming a barrel reservoir (104) for retaining a fluid, a first open proximal end (106), and a first distal end (108), wherein the barrel (102) comprising:
at least one finger grip (110) at the first open proximal end (106), protruding outwards from the side wall of the barrel (102), wherein the at least one finger grip (110) is provided with a finger grip notch (110a) and a circular notch (110b);
a pair of movable wings comprising a stopper wing (112) and an alignment wing (114), connected at the sides of the first open proximal end (106), by a thin flexible joint (116), wherein the stopper wing (112) includes a plurality of sharp stopper edges (112a) and at least one cylindrical notch (112b) locked to the circular notch (110b) of the at least one finger grip (110), wherein the alignment wing (114) includes at least one locking notch (114a) locked to the finger grip notch (110a) and at least one alignment notch (114b); and
an exit cylinder (120) extended at the first distal end (108) of the barrel (102), wherein the exit cylinder (120) is tapered for holding a syringe needle and a cylindrical cap (500);
a flat ring (200) having a ring opening (202), free-rotatably coupled to the first open proximal end (106) of the barrel (102), wherein the flat ring (200) is rotatably coupled between a ring stopper (116) and the at least one finger grip (110) in the barrel (102), wherein the flat ring (200) includes a plurality of curved rings finger grip (204) positioned radially towards the outward edge of the flat ring (200) for providing a grip to fingers of a user,
a plunger rod assembly (300) slidably disposed within the barrel reservoir (104) of the barrel (102), wherein the plunger rod assembly (300) comprising:
a second distal end (302), a second proximial end (304), and a plunger shaft (306) extending from the second distal end (302) to the second proximal end (304);
a plunger rod body (308) includes a plurality of elongated portions (308a-308d) having a plurality of stoppers (310), wherein the plurality of stoppers (310) is positioned diagonally on both sides of the plurality of elongated portions (308a-308d), with an offset of equal distance between the plurality of elongated portions (308a-308d), starting from the second distal end (302) and ends at the second proximal end (304) of the plunger rod assembly (300);
a circular slot (312) extended at the second distal end (302) of the plunger rod assembly (306); and
at least one finger grip (314) coupled to the second proximal end (304)of the plunger rod assembly (300);
wherein the plunger rod assembly (300) is configured to provide a plurality of controlled flush of the fluid in the barrel reservoir (104), by pushing and rotating the plunger shaft (306), by a user, towards the first distal end (108) of the barrel (102), for a controlled contact of the plurality of stoppers (310) in the plurality of elongated portions (308a-308d) with the stopper wing (112) in the barrel (102).

2. The fluid flush dispensing apparatus (100) as claimed in claim 1, wherein the plunger rod assembly (300) provide the controlled flush of the fluid by sliding inside the barrel (102) towards the first distal end (108) of the barrel (102), wherein the plunger rod assembly (300) is slided inside the barrel (102), by the user, pressing the at least one finger grip (314) in the plunger rod assembly (300) and pulling the flat ring (200) in the barrel (102), until, the plurality of stoppers (310) in plurality of elongated portions (308a-308d) is obstructed by the plurality of sharp stopper edges (112a) in the stopper wing (112).

3. The fluid flush dispensing apparatus (100) as claimed in claim 2, wherein the plunger rod assembly (300) is further slided towards the first distal end (108) inside the barrel (102) when the plunger rod assembly (300) and the flat ring (200) are rotated, by the user, to prevent the obstruction of the plurality of stoppers (310) by the plurality of sharp stopper edges (112a) in the stopper wing (112).

4. The fluid flush dispensing apparatus (100) as claimed in claim 2, wherein the stopper wing (112) is in a folded position, with the plurality of sharp stopper edges (112a) engages the plurality of stoppers (310) to provide an engagement force and resist distally directed force applied to the plunger rod assembly (300).

5. The fluid flush dispensing apparatus (100) as claimed in claim 4, wherein the stopper wing (112) is in the folded position, with the at least one cylindrical notch (112b) in the stopper wing (112) is locked to the circular notch (110b) of the at least one finger grip (110).

6. The fluid flush dispensing apparatus (100) as claimed in claim 1, wherein the plunger rod assembly (300) provide the controlled flush of the fluid by pulling back towards the first open proximal end (106) of the barrel (102), wherein the plunger rod assembly (300) is pulled back inside the barrel (102), by the user, pulling the at least one finger grip (314) in the plunger rod assembly (300).

7. The fluid flush dispensing apparatus (100) as claimed in claim 6, wherein the plunger rod assembly (300) is pulled back inside the barrel (102) to release the at least one cylindrical notch (112b) of the stopper wing (112) from the circular notch (110b) of the at least one finger grip (110) and unfolding the stopper wing (112).

8. The fluid flush dispensing apparatus (100) as claimed in claim 1, wherein the naming sticker ring stopper (118) in the barrel (101), is a thin layer to prevent falling of the flat ring (300) in the barrel (102).

9. The fluid flush dispensing apparatus (100) as claimed in claim 1, further comprising an exit blocking device disposed at the first distal end (104) of the barrel (101), wherein the exit blocking device (400) includes a sharp cone shaft (402) to damage a piston (700), an exit hole shaft (404), a fixed metal plate (406) to damage the barrel (102) and the exit hole shaft (404) to block an exit hole (120), a slidable rectangular disk (408), and a liquid exit grove (410) allowing the fluid in the barrel reservoir (102) to exit from the barrel (102).

10. The fluid flush dispensing apparatus (100) as claimed in claim 1, wherein each elongated portion of the plurality of the elongated potions (308a-308d) having an edge diameter greater than a diameter of the plurality of the stoppers (308a-308b).

11. The fluid flush dispensing apparatus (100) as claimed in claim 1, wherein the plunger rod assembly (300) further comprising: a circular disk (312) to break when pressed into the barrel (102), indicating a damage in the plunger rod assembly (300).

12. The fluid flush dispensing apparatus (100) as claimed in claim 1, wherein the barrel (102) includes the cylindrical cap (500) sliding over the exit cylinder (120) in the first distal end (108) of the barrel (102).

13. The fluid flush dispensing apparatus (100) as claimed in claim 1, wherein the exit cylinder (120) in the first distal end (108) of the barrel (102) includes the exit hole (122).

14. The fluid flush dispensing apparatus (100) as claimed in claim 1, further comprises a nozzle cap (600) removably coupled to the first distal end (108) of the barrel (102), wherein the nozzle cap (600) comprises an inner cylinder (606) to slide over the exit cylinder (122) of the barrel (102), and an outer cylinder (608), wherein inner cylinder (606) comprises one or more semi radial threads (612) opposite to each other.

15. The fluid flush dispensing apparatus (100) as claimed in claim 1, further comprises one or more stopping rings (1012) connected to the syringe barrel (102) with thin flexible joint (1020), wherein the stopping rings (1012) comprises left stopper edge (1006), and right stopper edge (1008).

16. The fluid flush dispensing apparatus (100) as claimed in claim 1, wherein the barrel (102) comprises one or more aligning wings (1102) connected to a finger grip (1110) with a thin flexible joint (1104), wherein, the thin flexible joint (1104) is capable of folding from 0 to 180 degree, and closing the open wings (1102), and wherein the finger grip (1110) comprises one or more rectangular notches (1106), for locking the open aligning wings (1102).

17. The fluid flush dispensing apparatus (100) as claimed in claim 1, wherein the barrel (102) further comprises a radial locking slot in a finger grip (1203) opposite to each other to support barrel locking ring (1301).

18. The fluid flush dispensing apparatus (100) as claimed in claim 17, wherein the barrel locking ring (1301) comprises a locking arm (1315) with a locking arm notch (1317) placed at 180 degrees apart radially in the barrel locking ring (1301), wherein the barrel locking ring (1301) comprises stopper wings (1305) connected with thin flexible joint (1303) to control a plunger movement, wherein the locking arm (1315) with locking arm notch (1317) locks with a radial locking slot (1205), and wherein the barrel locking ring (1301) comprises radially aligned slot to support the formation of locking arm notch (1317).

Dated this 30th day of June 2024

Name: Sanath MV
Prasa IP
Patent Agent (IN/PA-5004)
Agent for the Applicant