Description:FIELD OF THE INVENTION:
The present invention belongs to the field of dental and medical devices, particularly relates to accessories for disposable syringes, and more particularly to a reusable, detachable grip-enhancing attachment that facilitates controlled, single-handed delivery and aspiration of fluids during procedures such as but not limited to root canal irrigation and local anesthesia administration.
BACKGROUND OF THE INVENTION:
Disposable syringes are widely used in dental and medical procedures for delivering and aspirating fluids such as irrigants and local anesthetics. In clinical settings, particularly in dentistry, procedures like root canal irrigation require both precision and the ability to perform aspiration and delivery in rapid succession. However, standard disposable syringes are typically designed without ergonomic enhancements, such as finger flanges or grip attachments, that would allow controlled, one-handed operation. As a result, clinicians often rely on both hands or assistance to stabilize the syringe and manipulate the plunger, increasing the risk of procedural errors and reducing efficiency. Furthermore, the absence of reusable control accessories contributes to increased procedural fatigue and limits consistency in irrigation or anesthetic delivery.
US2015238698A1 discloses a device is provided for facilitating an aspiration procedure during a dermal filler injection treatment. The device can be connected to a dermal filler syringe plunger, and includes a thumb stop element for engaging a physician's thumb.
GB2596876A discloses an adaptor for a syringe comprises a thumb loop that attaches to a plunger of the syringe and a pair of finger loops that attach to the barrel of the syringe. The thumb loop has a recess for plunger head and a plurality of clips.
TWM574050U discloses an auxiliary device which is used with a syringe includes a plunger and a barrel. The end of the plunger has a flange. The auxiliary device has an annular wall body which has an inner surface and an outer surface and includes a U-shaped slot.
However, existing prior arts provide thumb and finger loop-based accessories or auxiliary attachments for enabling one-handed syringe control, they are either specific to cosmetic injection contexts, involve complex multi-clip assemblies, or are primarily designed for fixed integration onto the syringe structure. None of the prior art offers a simple, reusable, and detachable ergonomic accessory that can be universally mounted on standard disposable dental syringes (e.g., 5 ml and 10 ml), while enabling both aspiration and irrigation control in dental procedures like root canal therapy. Furthermore, the prior art lacks a modular grip configuration that accommodates either a three-contact system or a thumb-only mechanism to support both flexibility in usage and cost-effective manufacturing.
Accordingly, there is a clear need for a detachable, reusable accessory that enables single-handed, stable control of disposable syringes while maintaining compatibility with existing syringe designs, particularly in procedures requiring alternating irrigation and aspiration without compromising sterility or precision.

OBJECTS OF THE INVENTION

One or more of the problems of the conventional prior art may be overcome by various embodiments of the system and methods of the present invention.

The principal object of the present invention is to provide a reusable and detachable flow control accessory comprising a set of interlocking rings that can be mounted onto standard disposable syringes to facilitate single-handed control during dental procedures.

Another object of the present invention is to offer a flow control device comprising three ergonomically arranged rings, one for the thumb and two for the fingers, integrated via an interlocking system to ensure secure mounting and precise grip on the syringe.

One another object of the present invention is to allow the detachable rings to provide enhanced control during root canal irrigation procedures, enabling both fluid delivery and aspiration with improved precision and reduced manual fatigue.

A further object of the present invention is to make the accessory compatible with 5 ml and 10 ml disposable syringes without requiring any structural modifications to the syringe.

Yet another object of the present invention is to enable the rings to be manufactured in various shapes such as round, oval, square, or triangular to accommodate different user preferences and hand anatomies.

Still another object of the present invention is to allow the accessory to be sterilized and reused in clinical settings, making it a cost-effective and environmentally sustainable solution.

An additional object of the present invention is to provide modular usage flexibility, wherein either a full three-ring assembly or a thumb-support-only configuration may be used to achieve one-handed push-pull syringe control.

Other objects and advantages of the present disclosure will be more apparent from the following description, which is not intended to limit the scope of the present disclosure.

SUMMARY OF THE INVENTION

Thus, according to the basic aspect of the present invention, there is provided a reusable flow control accessory for mounting on a disposable syringe, comprising:
a thumb ring configured to receive the thumb of a user for controlling the plunger of the syringe;
an index finger ring and a middle finger ring mounted on opposite sides of the syringe barrel, configured to receive the index and middle fingers of the user respectively;
an interlocking system operatively connecting the thumb ring, index finger ring, and middle finger ring to form a stable grip structure;
and mounting slots or channels provided on each of the rings for detachably securing the accessory onto the barrel and flange of the disposable syringe.

Another aspect of the present invention is to make each of the thumb ring, index finger ring, and middle finger ring detachable from one another as well as from the syringe, allowing users to assemble or disassemble the accessory as needed. Said detachable configuration enhances modularity and enables flexible application depending on the clinical use case.
Another aspect of the present invention is that each of the rings is designed for repeated clinical use and is made of materials compatible with sterilization methods such as autoclaving. Said arrangement ensures hygienic reuse, cost-effectiveness, and environmental sustainability when compared to fully disposable alternatives.
Another aspect of the present invention is to allow the rings to be manufactured in different geometric shapes, such as round, oval, square, or triangular. These shape variations improve user comfort and grip customization, allowing clinicians to select a configuration that best suits their hand anatomy and operating technique.
Another aspect of the present invention is that the accessory allows the user to hold the syringe between the index and middle fingers while actuating the plunger using the thumb via the thumb ring, thus enabling controlled aspiration and delivery of fluids with a single hand. Said ergonomic configuration enhances procedural precision and reduces fatigue, particularly in repetitive or delicate tasks like root canal irrigation.
Another aspect of the present invention is that the interlocking system between the thumb ring and the finger rings ensures structural integrity and alignment during use. Said mechanical linkage prevents slippage, twisting, or misalignment, contributing to safer and more predictable syringe handling.
Another aspect of the present invention is that the mounting slots or channels on each of the rings are shaped to engage securely with the syringe, either by snap-fit or sliding attachment. These mounting features are dimensioned to accommodate 5 ml and 10 ml standard disposable syringes without requiring modification to the syringe structure.
Another aspect of the present invention is to define a method of performing single aspiration and delivery of fluids using a disposable syringe fitted with a reusable flow control accessory, the method comprising the steps of:
mounting a thumb ring, an index finger ring, and a middle finger ring onto the syringe using respective mounting slots or channels;
interlocking the thumb ring with the finger rings using an interlocking system to form a stable grip structure;
positioning the index and middle fingers into the finger rings and the thumb into the thumb ring;
stabilizing the syringe barrel using the index and middle fingers;
actuating the syringe plunger using the thumb to aspirate or deliver fluids during a medical or dental procedure such as but not limited to root canal irrigation or local anaesthesia administration.
Another aspect of the present invention is to provide an alternative configuration where only the thumb ring is used to control the plunger of the syringe, with or without the index and middle finger rings. In this case, the syringe can be supported between the user’s fingers while allowing full plunger movement with the thumb alone, offering a simpler and lighter alternative suitable for quick or less force-intensive procedures.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 illustrates the perspective view of the flow control accessory in its fully assembled state, showing the relative positions of the thumb ring, index finger ring, and middle finger ring mounted on a disposable syringe, according to the present invention.
Figure 2 shows the exploded view of the accessory components, depicting the detachable thumb ring, index finger ring, and middle finger ring along with the interlocking system and mounting channels for engagement with the syringe, according to the present invention.
DETAILED DESCRIPTION OF THE INVENTION WITH REFERENCE TO THE ACCOMPANYING FIGURES

The present invention discloses a reusable flow control accessory designed to be mounted on a standard disposable syringe [112], such as a 5 ml or 10 ml syringe, to facilitate precise, single-handed aspiration and delivery of fluids in dental procedures like root canal irrigation or local anesthesia administration.
Referring to Figure 1, in an embodiment, the accessory comprises a thumb ring [102], an index finger ring [104], and a middle finger ring [106], each ergonomically positioned to accommodate the respective digits of the user. These rings are connected through an interlocking system [108] that ensures mechanical stability and alignment during operation. The rings are provided with mounting slots or channels [110] that enable them to slide onto or snap-fit around the flange or barrel of the syringe without requiring any permanent modification to the syringe body. When mounted, the user inserts the index and middle fingers into the finger rings [104, 106] while the thumb is inserted into the thumb ring [102], allowing comfortable and stable control over the syringe plunger using one hand.
Each of the rings [102, 104, 106] is detachable and reusable, made from materials suitable for sterilization such as autoclaving. The modularity of the design allows users to assemble the accessory as a full three-ring structure or use it partially, such as employing only the thumb ring [102] when minimal support is sufficient. This flexibility supports diverse clinical preferences and hand ergonomics. The geometry of the rings may vary, round, oval, square, or triangular, providing additional customization and comfort for different users.
In one configuration, the accessory allows the syringe [112] to be held between the index and middle fingers, while the thumb ring [102] enables axial actuation of the plunger for either injection or aspiration, reducing the need for assistance or two-handed operation. In an alternative embodiment, the accessory may consist solely of the thumb ring [102], which alone provides sufficient leverage for thumb-driven control of the plunger, with the syringe body stabilized between the other fingers. This thumb-only configuration offers a lightweight, simplified version for procedures that require minimal resistance. The method of use involves mounting the accessory onto the syringe, inserting the fingers into the respective rings, and controlling fluid flow through thumb-actuated plunger movement—all with one hand—enhancing ergonomic efficiency, safety, and procedural precision.

Referring to Figure 2, in an embodiment, the exploded view illustrates the individual components of the flow control accessory prior to assembly onto the disposable syringe [112]. The thumb ring [102], index finger ring [104], and middle finger ring [106] are shown separately, revealing the design and orientation of each component. The interlocking system [108] is depicted between the rings, enabling secure mechanical engagement when assembled. Said system ensures the correct spatial alignment of the three rings to form a unified ergonomic grip during use. Each ring is also shown with mounting slots or channels [110], which are configured to fit over the flange or barrel of the syringe [112]. These slots allow the rings to be easily attached and detached without altering the syringe itself. Said illustration in Figure 2, sclearly demonstrates how the modular design permits quick assembly, reconfiguration, or sterilization, making the device adaptable for different clinical requirements and users.

TECHNICAL ADVANCEMENTS OF THE PRESENT INVENTION

The present invention provides a detachable and reusable syringe-mounted accessory that enables single-handed aspiration and delivery of fluids, overcoming the limitations of conventional disposable syringes that lack integrated ergonomic control features.

The present invention introduces a modular interlocking ring system that allows customizable grip configurations, including thumb-only or full three-finger operation, thereby enhancing clinical adaptability and operator comfort during precision procedures such as root canal irrigation.

The present invention achieves secure mechanical integration with standard disposable syringes using non-invasive mounting slots, ensuring compatibility without altering or compromising the structural or functional integrity of the syringe.

The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the following description. Descriptions of well-known components and processing techniques are omitted to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein. While considerable emphasis has been placed herein on the components and component parts of the preferred embodiments, it will be appreciated that many embodiments can be made and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other changes in the preferred embodiment as well as other embodiments of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.
, Claims:1. A reusable flow control accessory for mounting on a disposable syringe [112], comprising:
a thumb ring [102] configured to receive the thumb of a user for controlling the plunger of the syringe;
an index finger ring [104] and a middle finger ring [106] mounted on opposite sides of the syringe barrel, configured to receive the index and middle fingers of the user respectively;
an interlocking system [108] operatively connecting the thumb ring [102], index finger ring [104], and middle finger ring [106] to form a stable grip structure;
and mounting slots or channels [110] provided on each of the rings for detachably securing the accessory onto the barrel and flange of the disposable syringe [112].

2. The flow control accessory as claimed in claim 1, wherein the thumb ring [102], index finger ring [104], and middle finger ring [106] are detachable from each other and from the syringe [112].

3. The flow control accessory as claimed in claim 1, wherein each of the rings [102, 104, 106] is reusable and autoclavable for sterilization between uses.

4. The flow control accessory as claimed in claim 1, wherein the thumb ring [102], index finger ring [104], and middle finger ring [106] are selected from geometric shapes including round, oval, square, or triangular.

5. The flow control accessory as claimed in claim 1, wherein the accessory is configured to allow single-handed aspiration and delivery of fluids by engaging the syringe plunger using the thumb while the syringe barrel is stabilized between the index and middle fingers.

6. The flow control accessory as claimed in claim 1, wherein the interlocking system [108] provides mechanical stability and maintains alignment between the three rings during use.

7. The flow control accessory as claimed in claim 1, wherein the mounting slot or channel [110] is shaped to enable snap-fit or sliding attachment to the barrel or flange of a 5 ml or 10 ml disposable syringe [112].

8. The flow control accessory as claimed in claim 1, wherein the accessory is operable using only the thumb ring [102], with or without the index finger ring [104] and the middle finger ring [106], to enable single-handed aspiration and delivery of fluids by stabilizing the syringe [112] between the index and middle fingers while actuating the plunger using the thumb.

9. The flow control accessory as claimed in claim 1, involves a method of performing controlled single-handed aspiration and delivery of fluids using a disposable syringe [112] fitted with a reusable flow control accessory, the method comprising the steps of:
mounting a thumb ring [102], an index finger ring [104], and a middle finger ring [106] onto the syringe [112] using respective mounting slots or channels [110];
interlocking the thumb ring [102] with the finger rings [104, 106] using an interlocking system [108] to form a stable grip structure;
positioning the index and middle fingers into the finger rings [104, 106] and the thumb into the thumb ring [102];
stabilizing the syringe barrel using the index and middle fingers;
actuating the syringe plunger using the thumb to aspirate or deliver fluids during a medical or dental procedure such as but not limited to root canal irrigation or local anaesthesia administration.