Ergonomic dispensing device and adapter for self-administration of substances, means and methods thereof

Abstract

A self-use dispensing device for administering medications, fluids, semi-fluids and other substances, comprising: a. a barrel having a distal end and a proximal end and defining an internal cavity for holding a substance, said barrel further comprising at least one thumb grip or thumb support positioned to receive the user's thumb during operation; b. a plunger slidably disposed within the barrel from the proximal end, said plunger further comprising one or more finger grips configured to receive the user's index and / or middle fingers during self-use; wherein the arrangement of the thumb grip on the barrel and the finger grip(s) on the plunger is configured for controlled dispensing during self-use with a single hand, minimizing the risk of user error, spillage, or misapplication. There is also disclosed an adapter for converting conventional syringes to the self-use dispensing device and a kit thereof.

Description

[0001] TITLE: Ergonomic Dispensing Device and adapter for self -administration of substances, means and methods thereof

[0002] FIELD OF THE INVENTION

[0003] The present invention relates generally to the field of multi-purpose ergonomic dispensing devices and adapter systems for self-administration of substances, and more particularly to syringes and applicators configured for comfortable, single-handed operation in medical, reproductive, personal-care, hygiene, laboratory, veterinary, and industrial applications.

[0004] BACKGROUND

[0005] What is needed in the field of self-administration syringes and applicators is a device specifically designed for comfortable, single-handed use by individuals without medical training to operate these devices independently on themselves. Current syringes and applicators are predominantly designed for use by healthcare professionals or administration by another person, making them difficult for self-use.

[0006] In self-administration, the directional force and finger placement required are substantially different from traditional use, and the user must often operate the device with a single hand, for example when administering to intimate or difficult-to-reach anatomical sites. Unlike administration by a caregiver, where force is directed linearly away from the user, self-use requires directing force inward toward one's own body. Traditional syringes, with finger flanges on the barrel and a thumb rest at the rear of the plunger, are designed for forward pushing. However, in self-use, the thumb must stabilize the barrel or apply reverse pressure inward — a movement unsupported by conventional designs. This creates directional misalignment that compromises grip stability, comfort, and controlled pressure application.

[0007] As a result, self-administration with conventional syringes and applicators can be awkward and uncomfortable, and may require both hands for operation. Users, particularly those without medical training, may struggle to coordinate device positioning, plunger actuation, and targeting of the administration site. This can lead to user error, spillage, under- or overdelivery of substance, and increased anxiety about self-treatment. The ergonomic limitations of conventional devices are especially problematic for users with reduced strength, dexterity, or range of motion, such as elderly individuals, those with arthritis or neuromuscular conditions, or patients managing chronic therapies that require repeated injections or topical applications. There is also a growing population of users who self-administer therapies for fertility, metabolic conditions (for example, GLP-1 agonists), chronic pain, and other indications.

[0008] Conventional Syringes: Conventional syringes rely on fixed flanges and thumb rests optimized for outward-directed administration. For users aiming the syringe at themselves, these components do not support natural or stable grip, particularly when precision and control are essential. The conventional configuration often necessitates using both hands to achieve required precision.

[0009] Automated Injectors: Auto-injectors deliver pre-set medication doses with automated mechanisms, typically for single-use injections like epinephrine or GLP-1 medications. While effective for specific medications, they are not versatile and cannot accommodate the wide range of personal uses.

[0010] Adapted Designs with Larger Flanges or Grips: Some syringes feature larger flanges or grips, but they do not address the unique challenge of self-use or one-handed operation as they are optimized for use by third-party operators. These designs may still require assistance of a second hand or result in instability during self-use.

[0011] Prior art examples include USD315407S (Bradrick), featuring wing-shaped finger flanges and ring-shaped thumb grip not ideal for self-use; US1589046A (Brix), with finger rings requiring awkward hand positioning for self-administration; and USD834182S1 (Reynolds), with T-shaped flanges challenging for single-handed control.

[0012] Fertility devices in prior art, such as WO2023 / 237945 Al (Ryoko) and US8764623B2 (Minow), lack accommodations for one-handed self-administration. US11529172B1 (Westphal) explicitly requires both hands for operation, stating users need "both hands available to stabilize the syringe."

[0013] Applicators for vaginal or rectal administration, including US8617100B2 (Meir), US11426568B2 (Wang), and US7591808B2 (Triangali), similarly lack provisions for single- handed self-use. These designs fail to provide proper ergonomic grip suitable for selfadministration. Various attempts have been made to improve syringe ergonomics, including U.S. Patent No. 11,896,806 B2 (Tornsten) with track-indexed finger grips, and U.S. Patent Application Publication No. 2022 / 0355039 Al (Merson) teaching finger-holding surfaces for one-handed use. However, these solutions primarily address professional use rather than selfadministration biomechanics, where users must simultaneously stabilize the device, control the plunger, and manage inward directional forces.

[0014] In particular, there remains a need for solutions that:

[0015] Are specifically optimized for self-administration rather than caregiver administration;

[0016] Enable true single-handed operation, freeing the other hand for positioning, support, or other tasks;

[0017] Provide ergonomic, stable grip geometries appropriate for inward-directed force and body- oriented angles;

[0018] Can be implemented either as integrated self-administration syringes or as retrofit adapter systems for widely available, standard syringes and applicators; and are suitable for a broad range of uses, including medical, reproductive, personal care, hygiene, cosmetic, laboratory, veterinary, and industrial applications.

[0019] The present disclosure addresses these and other needs.

[0020] SUMMARY OF THE INVENTION

[0021] In various embodiments, the present invention provides ergonomic dispensing devices for self-administration, ergonomic adapter systems for retrofitting existing syringes and applicators, and combinations thereof, all configured to enable or improve single-handed self- administration of substances. In accordance with some embodiments of the present invention, the ergonomic self-administration dispensing device and the adapter system useful for converting conventional syringes, provide improved comfort and control during use and thereby expand the range of situations in which users can safely and effectively perform selfadministration.

[0022] In accordance with some embodiments of the present invention, the ergonomic dispensing devices and the adapter system for syringes and applicators provide a solution for enhancing the self-administration of substances. These ergonomic solutions address challenges associated with conventional syringe designs by improving grip stability, control, and user comfort during single-handed operation. In accordance with some embodiments of the present invention, there is thus provided a self-use dispensing device for administering medications, fluids, semi-fluids and other substances. The self-use dispensing device comprises: a. a barrel having a distal end proximal end and defining an internal cavity for holding a substance, said barrel further comprising at least one thumb grip or thumb support positioned to receive the user’s thumb during operation; b. a plunger slidably disposed within the barrel from the proximal end, said plunger further comprising one or more finger grips configured to receive the user’s index and / or middle fingers during self-use; c. wherein the arrangement of the thumb grip on the barrel and the finger grip(s) on the plunger is configured for controlled dispensing during self-use with a single hand.

[0023] In such embodiments, the relative positioning and shape of the thumb grip on the barrel and the finger grip(s) on the plunger are selected to allow a user to stabilize the barrel with their thumb while drawing in or dispensing substance by pushing or pulling on the plunger with their index and / or middle fingers. The geometry supports the inward-facing angles typical of self-use, and can reduce the likelihood of misalignment, slippage, and user error.

[0024] Furthermore, in accordance with some embodiments of the present invention, the finger grip(s) on said plunger are shaped as circular, ovular, semicircular, semi-curved, winged, flanged, contoured, textured, and extended configurations or any other ergonomic shapes to facilitate comfortable engagement by said user’s index and / or middle fingers.

[0025] Furthermore, in accordance with some embodiments of the present invention, the components are configurable in various materials, including but not limited to polymer, silicone, and metal, and vary in sizes to accommodate different volumes.

[0026] Furthermore, in accordance with some embodiments of the present invention, the barrel is transparent or opaque, flexible or rigid, and includes optional features such as measurement markings, tips, nozzles, or external attachments like extensions or adapters.

[0027] Furthermore, in accordance with some embodiments of the present invention, the plunger is configured in various sizes, shapes, and textures, including smooth or grooved surfaces for enhanced grip, and optionally includes additional elements such as a rubber stopper or clickfeedback mechanisms for precise control. Furthermore, in accordance with some embodiments of the present invention, the device is configured to dispense substances in various forms, including liquid, gel, cream, paste, or solid, said substances are poured, injected, instilled, dropped, or otherwise passed through the device for precise delivery to the intended site.

[0028] In accordance with some embodiments of the present invention, a method for selfadministering medications, fluids, semi-fluids, or other substances using the self-use dispensing device described herein may include, for example, one or more of the following steps:

[0029] (i) positioning the device such that the user’s thumb engages the thumb grip on the barrel while at least one finger (for example, the index and / or middle finger) engages the finger grip(s) on the plunger;

[0030] (ii) drawing a desired amount of substance into the barrel by pulling the plunger rearward with the engaged finger or fingers while stabilizing the device with the thumb on the thumb grip; and

[0031] (iii) administering the substance by advancing the plunger forward with the engaged finger or fingers while maintaining the thumb on the thumb grip to stabilize the device.

[0032] Furthermore, in accordance with some embodiments of the present invention, the plunger and barrel are made of materials suitable for single-use or reusable purposes in personal care or medical applications.

[0033] In accordance with some embodiments of the present invention, there is also provided a multi-purpose self-use dispensing device, comprising: a. a barrel for holding a medication, fluid or semi-fluid and other substances, said barrel further comprising a thumb grip for stabilizing the device during operation; b. a plunger having one or more finger grips for engaging the user’s index and / or middle fingers, said plunger being inserted into the barrel for controlled dispensing of the substance; c. wherein the device is configured for a variety of applications requiring selfadministration of various substances in medical, reproductive, personal-care, hygiene, cosmetic, or other contexts.

[0034] The devices and systems described herein can be used to administer a wide range of substances, including without limitation liquids, semi-liquids, gels, creams, pastes, suspensions, and certain flowable solids. Furthermore, in accordance with some embodiments of the present invention, the device is configured for self-inj ection or self-delivery of medications and other therapeutic compositions, including but not limited to insulin, epinephrine, GLP-1 receptor agonists, GIP receptor agonists, dual or multi -agonists targeting GLP-1 and / or GIP pathways (for example, tirzepatide), and other metabolic agents, fertility-related medications, vaccines, biologic agents, hormonal therapies, analgesics, and other injectable or instillable therapeutic substances, and is suitable for use in home-care, community, clinical, or emergency settings..

[0035] Furthermore, in accordance with some embodiments of the present invention, the device is configured for self-administration of substances selected from the group consisting of but not limited: to rectal or vaginal douching, lubrication, enemas, topical creams or gels, suppository placement or combinations thereof.

[0036] Furthermore, in accordance with some embodiments of the present invention, the device is configured for self-administration of sperm or processed sperm suspensions for reproductive procedures, including but not limited to intracervical insemination (ICI).

[0037] Furthermore, in accordance with some embodiments of the present invention, the device is configured for self-administration of substances selected from the group consisting of but not limited to: topical cosmetic or dermatologic treatments, including dispensing serums, gels, creams, dental treatments, hair treatments, and other dermatologic or cosmetic formulations, and combinations thereof.

[0038] Furthermore, in accordance with some embodiments of the present invention, the device is configured for single handed administration of substances to another person, animal, or object.

[0039] Furthermore, in accordance with some embodiments of the present invention, the device is configured for single handed administration of substances in research or industrial applications for the controlled, one-handed dispensing of fluids, semi-fluids, or other substances in environments selected from laboratories, chemical processing plants, or manufacturing lines., offering adaptability for tasks that require precision and efficient substance handling.

[0040] Furthermore, in accordance with some embodiments of the present invention, the device is adapted for medical or veterinary uses selected from the group comprising wound healing and tissue repair. Furthermore, in accordance with some embodiments of the present invention, the device is adapted for one-handed use by medical or veterinary personnel carrying out laparoscopic, thoracoscopic or endoscopic procedures.

[0041] In accordance with some embodiments of the present invention, the dispensing devices and adapters described herein can also be employed in medical or veterinary procedures that involve delivery of tissue sealants, hydrogels, or other specialized compositions. Examples of such uses include: repair of physical damage to living tissues such as breaks, cuts and tears caused by unintentional injury. post operative repair of living tissue after injury resulting from surgical procedures. repair and sealing of membranous biological tissues, including the dura mater. forming of a homogeneous hydrogel that seals biological tissues. forming of a water-tight seal to prevent the leakage of biological fluids, such as cerebrospinal fluid. application in biological spaces where minimal swelling of the gel is advantageous. application in biological spaces as a delivery vehicle. application as a delivery vehicle for a pharmaceutical or therapeutic agent.

[0042] In such procedures, where the angle and direction of use may necessitate a non-standard grip, the ergonomic grip design of the device provides enhanced comfort, stability, and control, making it suitable for these applications.

[0043] In accordance with some embodiments of the present invention, there is also provided an ergonomic adapter system for retrofitting a syringe or applicator to facilitate selfadministration of substances.

[0044] Unlike conventional syringes and applicators, which are primarily designed for administration by another person, the disclosed adapter system provides an ergonomic solution that can be attached to existing devices to improve control, accuracy, and overall usability during single-handed operation.

[0045] In some embodiments, the ergonomic adapter system comprises: a finger grip plunger adapter configured to attach to a plunger of the syringe or applicator, said finger grip plunger adapter comprising at least one finger grip ergonomically positioned for engagement by a user's index and / or middle fingers; a thumb grip barrel adapter configured to attach to a barrel of the syringe or applicator, said thumb grip barrel adapter comprising a thumb grip ergonomically positioned for engagement by a user's thumb; wherein the finger grip plunger adapter and thumb grip barrel adapter are configured to enable single-handed operation of the syringe or applicator during self-administration.

[0046] The system may be used with one or both adapter components, depending on user preference and application needs. By enhancing ergonomics and usability, the adapter system may facilitate more precise and comfortable substance delivery across various applications. The adaptable nature of the system allows for use with a range of commercially available syringes and similar devices, offering broad applicability for users requiring self-administration capabilities. In some embodiments, the core objective of the ergonomic adapters is to provide finger and thumb grips that can be fitted to most commercially available syringes and similar devices for single-hand operation of these devices, particularly for self-administration of substances by an operator or patient.

[0047] Furthermore, in accordance with some embodiments of the present invention, the finger grip plunger adapter and thumb grip barrel adapter are independently attachable and detachable from the syringe or applicator.

[0048] Furthermore, in accordance with some embodiments of the present invention, the finger grip plunger adapter and thumb grip barrel adapter are configured for use separately or together without compromising ergonomic benefits and usability.

[0049] Furthermore, in accordance with some embodiments of the present invention, the system is adaptable for different syringe and applicator models, including prefilled and multi-use devices.

[0050] Furthermore, in accordance with some embodiments of the present invention, the finger grip plunger adapter is configured to attach to the syringe plunger using an attachment mechanism selected from the group consisting of but not limited to: twist-on mechanism, slide-on mechanism, press-fit engagement, snap-fit mechanism, interlocking two-piece assembly, clamp-based attachment, clip-on attachment, or spring-loaded attachment.

[0051] Furthermore, in accordance with some embodiments of the present invention, the thumb grip barrel adapter is configured to attach to the syringe barrel using an attachment mechanism selected from the group consisting of but not limited to: twist-on mechanism, slide-on mechanism, press-fit engagement, snap-fit mechanism, interlocking two-piece assembly, clamp-based attachment, clip-on attachment, or spring-loaded attachment.

[0052] Furthermore, in accordance with some embodiments of the present invention, the finger grip(s) may be shaped as one configuration selected from the group consisting of but not limited to: circular, ovular, semicircular, semi-curved, winged, flanged, contoured, textured, extended, or other ergonomic configurations.

[0053] Furthermore, in accordance with some embodiments of the present invention, the finger grip and thumb grip further include surface features selected from the group consisting of but not limited to: tactile surfaces, textured surfaces, rubberized surfaces, ridges, or grip-enhancing coatings to enhance grip stability and prevent slippage.

[0054] Furthermore, in accordance with some embodiments of the present invention, the finger grip plunger adapter comprises securing structures selected from the group consisting of but not limited to: internal recess, channel, opening, clamp, flexible band, cavity, groove, circumferential slot, clasp, or elastic fitting configured to receive and engage a plunger flange of varying designs.

[0055] Furthermore, in accordance with some embodiments of the present invention, the finger grip plunger adapter and thumb grip barrel adapter are constructed from materials selected from the group consisting of but not limited to: polymer(s), rubberized polymer(s), silicone, metal, composite materials, and combinations thereof.

[0056] Furthermore, in accordance with some embodiments of the present invention, the thumb grip barrel adapter comprises securing structures selected from the group consisting of but not limited to: internal recess, channel, opening, clamp, flexible band, cavity, groove, circumferential slot, clasp, or elastic fitting configured to receive and engage a syringe barrel of varying designs.

[0057] Furthermore, in accordance with some embodiments of the present invention, the finger grip plunger adapter and thumb grip barrel adapter are configured as components selected from the group consisting of but not limited to: one-time use disposable components, permanently attached components, non-permanently attached components, detachable components, or reusable components for use with multiple syringes or applicators.

[0058] Furthermore, in accordance with some embodiments of the present invention, the finger grip plunger adapter includes a locking mechanism selected from the group consisting of but not limited to: interlocking fingers, locking apertures, slots, adhesives, press fits, clasps, loop- and-hook fasteners, buckles, pins, or clamps to prevent unintended detachment.

[0059] Furthermore, in accordance with some embodiments of the present invention, the thumb grip barrel adapter comprises securing structures selected from the group consisting of but not limited to: internal recess, channel, opening, clamp, flexible band, cavity, groove, circumferential slot, clasp, or elastic fitting configured to receive and engage a syringe barrel of varying designs.

[0060] Furthermore, in accordance with some embodiments of the present invention, the finger grip plunger adapter comprises an interlocking two-piece design with complementary locking fingers and corresponding apertures for secure engagement around the syringe plunger.

[0061] Furthermore, in accordance with some embodiments of the present invention, the thumb grip barrel adapter comprises a hub portion including a longitudinal slit configured to allow expansion to accommodate different brands and sizes of syringes or applicators.

[0062] Furthermore, in accordance with some embodiments of the present invention, the hub portion further includes one or more elongate member projections configured to engage with flanges of the syringe or applicator barrel using a twist-and-lock feature.

[0063] Furthermore, in accordance with some embodiments of the present invention, the finger grip plunger adapter includes a recess configured to receive a portion of the syringe plunger, said recess being shaped as one configuration selected from the group consisting of but not limited to: semi-circular recess, V-shaped recess, or contoured recess with corresponding groove features.

[0064] Furthermore, in accordance with some embodiments of the present invention, the thumb grip barrel adapter includes a longitudinal opening configured to allow plunger insertion into the syringe barrel via a guided path, said longitudinal opening being shaped as one configuration selected from the group consisting of: C-shaped opening, U-shaped opening, or slotted opening. Furthermore, in accordance with some embodiments of the present invention, the system is configured for use in medical applications for self-administration of substances selected from the group consisting of but not limited to: medications, injections, therapeutic fluids, insulin, epinephrine, or other pharmaceutical agents.

[0065] Furthermore, in accordance with some embodiments of the present invention, the system is configured for use in personal -care or reproductive applications selected from the group consisting of but not limited to: vaginal insemination, rectal or vaginal douching, lubrication, enemas, topical creams or gels, or suppository placement.

[0066] Furthermore, in accordance with some embodiments of the present invention, the system is configured for use in dermatologic and cosmetic applications, including dispensing serums, gels, creams, dental treatments, hair treatments, and other dermatologic or cosmetic formulations, and combinations thereof.

[0067] In accordance with some embodiments of the present invention, there is also provided a kit for retrofitting syringes and applicators for self-administration, comprising: a. at least one finger grip plunger adapter configured to attach to a plunger of a syringe or applicator and provide finger grip(s) for a user's index and / or middle fingers; b. at least one thumb grip barrel adapter configured to attach to a barrel of the syringe or applicator and provide a thumb grip for a user's thumb; c. instructions detailing installation and use configurations for different syringe brands and models.

[0068] Furthermore, in accordance with some embodiments of the present invention, the finger grip plunger adapter and the thumb grip barrel adapter are provided in multiple sizes to accommodate syringes or applicators of varying diameters and lengths.

[0069] Furthermore, in accordance with some embodiments of the present invention, the kit further comprising a set of interchangeable adapter grips with varying contours, textures, and materials to suit different user preferences and hand sizes.

[0070] Furthermore, in accordance with some embodiments of the present invention, the finger grip plunger adapter comprises attachment mechanisms selected from the group consisting of but not limited to: twist-on mechanism, slide-on mechanism, interlocking two-piece assembly, or clamp-based attachment. Furthermore, in accordance with some embodiments of the present invention, the thumb grip barrel adapter comprises attachment mechanisms selected from the group consisting of but not limited to: twist-on mechanism, slide-on mechanism, interlocking two-piece assembly, or a clamp-based attachment with longitudinal slit for expansion.

[0071] Furthermore, in accordance with some embodiments of the present invention, the finger grip plunger adapter and thumb grip barrel adapter are constructed from materials selected from the group consisting of but not limited to: polymer(s), rubberized polymer(s), silicone, metal, composite materials, or combinations thereof.

[0072] Furthermore, in accordance with some embodiments of the present invention, the finger grip(s) and thumb grip are shaped as configurations selected from the group consisting of but not limited to: circular, ovular, semicircular, semi-curved, winged, flanged, contoured, textured, extended, or other ergonomic configurations.

[0073] Furthermore, in accordance with some embodiments of the present invention, the finger grip plunger adapter and thumb grip barrel adapter are configured as reusable components for use with multiple syringes or applicators.

[0074] Furthermore, in accordance with some embodiments of the present invention, the kit further comprising cleaning solution and sanitization instructions for maintaining the finger grip plunger adapter and thumb grip barrel adapter between uses.

[0075] Furthermore, in accordance with some embodiments of the present invention, the instructions include diagrams illustrating proper finger and thumb placement on the adapter components for optimal ergonomic benefit during self-administration procedures.

[0076] Furthermore, in accordance with some embodiments of the present invention, the kit is packaged in a portable case suitable for travel or storage in medical bags, and includes compatibility charts for different syringe and applicator models.

[0077] The subject matter may be embodied in numerous forms, including devices, components, systems, kits, and methods of use. The following description and drawings are provided by way of example and are not intended to be limiting, the scope of the invention being set forth in the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] Figures 1-5 are illustrations of prior art devices.

[0079] Figure 6 is an illustration of an embodiment of a self-administration dispensing device of the present invention.

[0080] Figures 7-10 are photographs illustrating a method of assembling a syringe fitted with an embodiment of the present invention.

[0081] Figures 11-19 are illustrations of prior art devices.

[0082] Figure 20 is a photograph of a separated syringe plunger and syringe barrel; both fitted with an embodiment of the present invention.

[0083] Figure 21 is a photograph of a syringe plunger inserted into the syringe barrel, both fitted with an embodiment of the present invention.

[0084] Figure 22 is a photograph of a hand about to depress the syringe plunger into the syringe barrel; both fitted with an embodiment of the present invention.

[0085] Figure 23 is a photograph of the plunger depressed by one-handed operation into the syringe barrel, both fitted with an embodiment of the present invention.

[0086] Figure 24 is a sketch and cross-sectional drawing of a syringe fitted with an ergonomic adapter system of the present invention.

[0087] Figure 25 is an isometric drawing of a syringe fitted with an ergonomic adapter system of the present invention.

[0088] Figure 26 is a drawing of another embodiment of a thumb grip barrel adapter of the present invention.

[0089] Figure 27 is a drawing of another variant embodiment of a finger grip plunger adapter of the present invention.

[0090] Figure 28 is a drawing of another variant embodiment of an ergonomic adapter system of the present invention. DETAILED DESCRIPTION OF THE FIGURES

[0091] The subject matter will now be described more fully hereinafter with reference to the accompanying drawings, which form a part hereof, and which show, by way of illustration, specific exemplary embodiments. The subject matter may be embodied in different forms and so the covered or claimed subject matter is not intended to be limited to any exemplary embodiments. The subject matter may be embodied as devices, components, systems or methods. The following detailed description is not intended to be taken in a limiting sense.

[0092] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

[0093] The following detailed description includes the best currently contemplated mode or modes of carrying out exemplary embodiments of the invention. The description is not to be taken in a limiting sense but is made merely for the purpose of illustrating the general principles of the invention, since the scope of the invention will be best defined by the allowed claims of any resulting patent.

[0094] The present invention solves the issues apparent in the prior art by redesigning syringes and applicators to provide comfort, precision, and ease of use for self-administration.

[0095] Conventional syringes typically feature flanges on the barrel and a thumb rest on the plunger, configured for forward pushing when administered by another person. However, for selfadministration, the user's grip, finger placement, and directional force must be adapted to an entirely different, inward-facing setup that conventional syringes fail to accommodate. The present invention places finger grip(s) on the plunger and a thumb grip on the barrel, thus accommodating self-use and enabling one-handed operation where an inward-facing angle or operation is desired or required.

[0096] In some embodiments, the present disclosure encompasses two primary categories of embodiments: (i) multi-purpose self-administration dispensing devices with integrated ergonomic features, and (ii) ergonomic adapter systems that can be fitted to commercially available syringes and applicators to enhance their functionality for self-administration. Multi-Purpose Self-Administration Dispensing Device (600)

[0097] For convenience, Table 1 below provides the component numbers in the figures:

[0098] TABLE 1: (DISPENSING DEVICE COMPONENTS)

[0099] Fig. 6 illustrates an embodiment of the self-administration dispensing device (600) of the present invention.

[0100] The self-administration dispensing device (600) exemplified in Fig. 6, may comprise a barrel (610) and a plunger (630) specifically configured for single-handed self-administration. The barrel (610) which may be cylindrical holds the substance, whether fluid, semi-fluid, medication, or other material. The barrel (610) features a thumb grip (620) designed to accommodate the user's thumb during self-administration. The thumb grip (620) may be configured as a flange, wing, semicircle, full circle and the like to provide stabilization when manipulating the plunger (630). The barrel (610) can be manufactured in various materials, sizes, and properties depending on the intended application.

[0101] The plunger (630) includes finger grip(s) (640) positioned for the user's fingers, e.g., the index and / or middle fingers. The finger grip(s) (640) allow the user to comfortably pull back and push the plunger (630) with control, ensuring precision and ease during administration. The finger grip(s) (640) can be circular, ovular, semicircular, semi-curved, winged, flanged, contoured, textured, extended configurations and the like, and may incorporate various sizes, textures, and shapes to suit different hand sizes and user preferences.

[0102] The self-administration dispensing device (600) exemplified in Figs. 6-10 of the present invention is comprised of several key components that work together to ensure ease of use, precision, and comfort during self-administration of various substances. The components are highly adaptable, allowing for various configurations and features, such as different grip shapes, sizes, textures, and materials, to accommodate diverse applications and user preferences. Barrel (610) and Thumb Grip (620)

[0103] The barrel (610) which may be cylindrical holds the substance, whether it be a fluid, semifluid, medication, or other material. The barrel (610) features a thumb grip designed to accommodate the user’s thumb during self-administration. The grip may be configured as a flange, wing, semicircle, full circle and the like to provide stabilization when manipulating the plunger (630). The barrel (610) can be manufactured in various materials (polymer(s), silicon, metal, etc.), sizes (for different volumes), and properties (e.g., transparent, opaque, flexible, or rigid) depending on the intended application, and may include additional features such as markings or attachments for external components (e.g., extensions, adapters).

[0104] Plunger (630) and Finger Grip(s) (640)

[0105] The plunger (630) is inserted into the barrel (610) and controls the dispensing of the substance. A key feature of this design is the positioning of the grips for self-use. The plunger (630) may include one or more finger grips (640) where the user’s index and / or middle fingers rest. These finger grips (640) allow the user to comfortably pull back and push the plunger (630) with control, helping to ensure precision and ease during administration. The finger grips may be circular, ovular, semicircular, semi-curved, winged, flanged, contoured, textured, extended configurations, or other ergonomic shapes, depending on user preference and the specific application. The finger grips (640) can be in various sizes, textures (for example, smooth or grooved for enhanced grip), and shape to suit different hand sizes and user preferences, further improving ergonomic control. The plunger (630) may also be configured with additional user-friendly elements such as click-feedback mechanisms for precise control. Figs. 7-10 illustrate the method for assembling the self-administration dispensing device of the present invention.

[0106] Operation of Self-administration Device

[0107] In accordance with some embodiments of the present invention, the self-administration dispensing device (600), use exemplified in photographic Figs. 7-10, may operate through a unique grip arrangement that accommodates the angle, positioning, and directional force required for self-administration. The user may hold the self-administration dispensing device (600) with their thumb placed on the thumb grip (620) on the barrel (610) while his / her index and / or middle fingers rest on the finger grip(s) (640) on the plunger (630). To draw substance, the user may pull the plunger (630) back using the finger grip(s) (640) while stabilizing with the thumb grip (620). For administration, the user may position the dispensing end appropriately and may push the plunger (630) by pressing their index and / or middle fingers against the finger grip(s) (640) while maintaining stability through the thumb grip (620). This arrangement enables complete one-handed operation, leaving the other hand free for positioning or adjustment.

[0108] In accordance with some embodiments of the present invention, a method for selfadministering medications, fluids, semi-fluids, or other substances using the self-use dispensing device described herein may include, for example, one or more of the following steps:

[0109] (i) positioning the device such that the user’s thumb engages the thumb grip on the barrel while at least one finger (for example, the index and / or middle finger) engages the finger grip(s) on the plunger;

[0110] (ii) drawing a desired amount of substance into the barrel by pulling the plunger rearward with the engaged finger or fingers while stabilizing the device with the thumb on the thumb grip; and

[0111] (iii) administering the substance by advancing the plunger forward with the engaged finger or fingers while maintaining the thumb on the thumb grip to stabilize the device.

[0112] In some embodiments, the method may further include positioning or supporting the user’s body or an administration site with the user’s other hand while performing one or more of the foregoing steps, thereby permitting single-handed operation of the device during selfadministration.

[0113] Ergonomic Adapter System (100)

[0114] As shown in Figs. 20-28, the ergonomic adapter system (100) provides a solution for enhancing existing syringes and applicators for self-administration.

[0115] For convenience, Table 2 below provides the component numbers mentioned against the relevant figures:

[0116] TABLE 2: (ADAPTER SYSTEM COMPONENTS)

[0117] In accordance with some embodiments of the present invention, the ergonomic adapter system (100), exemplified in Figs. 20 and 21 and indicated in Table 2, may comprise an adapter system (100) configured to retrofit a syringe or applicator and provide ergonomic grip features for self-administration, two main components: a finger grip plunger adapter (130) and a thumb grip barrel adapter (140), which can be used individually or together depending on user needs.

[0118] The finger grip plunger adapter (130) attaches to the plunger of a syringe or applicator and includes ergonomically positioned grips for engagement by the user's fingers, e.g., the index and / or middle fingers. The finger grip plunger adapter (130) may incorporate various attachment mechanisms including twist-on, slide-on, or interlocking two-piece designs. The finger grip plunger adapter (130) may include a recess, cavity, or interior space (132) configured to receive a portion of the syringe plunger. The finger grip(s) (131) may be shaped as circular, ovular, semicircular, semi-curved, winged, flanged, contoured, textured, extended configurations, or other ergonomic shapes, and may incorporate textured surfaces or soft materials to enhance grip stability. The thumb grip barrel adapter (1 0) attaches to the barrel of a syringe or applicator to enhance stability and control during self-administration. The thumb grip barrel adapter (140) may accommodate various syringe barrel sizes and shapes through different attachment mechanisms including twist-on, clip-on, interlocking designs and the like. The finger grip plunger adapter (130) may include a longitudinal opening (142) allowing the plunger (110) to be inserted into the syringe barrel via a guided path, or may fully surround the barrel with a concentric hole for the plunger rod. The thumb grip (141) is ergonomically shaped to provide comfortable engagement for the user's thumb during operation.

[0119] Fig. 24 is a cross-sectional view of components of an ergonomic adapter system, including the finger grip plunger adapter (130) fitted onto the top part of the plunger (110). As shown in Fig. 24, the finger grip plunger adapter (130) may be configured to attach to a plunger (110) of a syringe or applicator. In some cases, the finger grip adapter (130) may include ergonomically positioned grips for engagement by a user's index and / or middle fingers.

[0120] The finger grip plunger adapter (130) may incorporate different attachment mechanisms to secure it to the syringe plunger. In some implementations, the finger grip plunger adapter (130) may be designed to twist or screw onto the syringe plunger (110). The attachment mechanism may utilize internal threads, projections, tabs, slots, cutouts and the like that correspond to the contours or surfaces of the syringe plunger (110). This screw-on mechanism may ensure a tight and stable connection, preventing accidental detachment during use.

[0121] The finger grip plunger adapter (130) may be designed to slide or press onto the syringe using various attachment mechanisms. In some implementations, the finger grip plunger adapter (130) may include a recess, cavity, slot, depression, channel, or interior space (132) configured to receive a portion of the syringe plunger (110).

[0122] Fig. 24 shows a perspective view where the finger grip plunger adapter (130) is positioned to engage with a plunger flange (111) of the syringe. When the plunger flange (111) is slidably inserted into the recess (132), it is securely held in place, allowing for stable operation. The recess (132) may be semi-circular and may further include a groove (133) to receive a corresponding ridge on the plunger (110), enhancing the stability and preventing unintended movement.

[0123] Alternatively, instead of a semi-circular recess (132), the finger grip plunger adapter (130) may include a V-shaped recess, enabling syringes of different brands or volumes, with flanges of varying diameters, sizes, or shapes, to be securely connected within the finger grip plunger adapter (130).

[0124] In some cases, the finger grip plunger adapter (130) may be designed as an interlocking two- piece component. These components may have complementary features such as locking fingers and corresponding apertures to securely connect when brought together around the syringe plunger (110). Additionally, the locking mechanism can be modified to include alternative securing methods, such as adhesives, press fits, clasps, loop-and-hook fasteners, buckles, pin, or clamp.

[0125] The finger grip(s) (131) of the finger grip plunger adapter (130) may be shaped to provide optimal ergonomic support. In some implementations, the finger grip(s) (131) may have circular, ovular, semicircular, semi-curved, flanged, or winged shapes or any other convenient shape. These shapes may be designed to comfortably accommodate the user's fingers during self-administration procedures.

[0126] To enhance grip stability, the finger grip plunger adapter (130) may incorporate textured surfaces. In some cases, the finger grip plunger adapter (130) may be covered in materials such as rubber, polymer(s) and the like. These features may help prevent slippage and improve overall control during use.

[0127] The finger grip plunger adapter (130) may be compatible with various syringe types and sizes. In some implementations, the finger grip plunger adapter (130) may include adjustable or flexible components to accommodate different plunger designs. This adaptability may allow the finger grip plunger adapter (130) to be used with a wide range of commercially available syringes and similar devices.

[0128] In some cases, the finger grip adapter (130) may be designed as an interlocking two-piece component. These components may have complementary features such as locking fingers or hooks (144) and corresponding apertures or slots (145) to securely connect when brought together around the syringe plunger (110). Additionally, the locking mechanism can be modified to include alternative securing methods, such as adhesives, press fits, clasps, loop- and-hook fasteners, buckles, pin, or clamp.

[0129] Figs. 24-28 illustrate components and variant embodiments of an ergonomic adapter system (100), including a finger grip plunger adapter (130) and the thumb grip barrel adapter (140). The ergonomic adapter system (100) may include a thumb grip barrel adapter (140) designed to attach to the barrel of a syringe or applicator.

[0130] The thumb grip barrel adapter (140) may be configured to enhance stability and control during self-administration procedures. In some cases, the thumb grip adapter (140) may be designed to accommodate various syringe barrel sizes and shapes, allowing for broad compatibility with commercially available syringes and similar devices.

[0131] The thumb grip barrel adapter (140) may incorporate different attachment mechanisms to secure it to the syringe barrel. In some implementations, the thumb grip adapter (140) may be designed to twist or screw onto the syringe. The attachment mechanism may utilize internal threads, projections, tabs, slots, or cutouts that correspond to the contours or surfaces of the syringe barrel (120). This screw-on mechanism may ensure a tight and stable connection, preventing accidental detachment during use.

[0132] As depicted in Figs. 25-26, in some embodiments, the thumb grip barrel adapter (140) may have a longitudinal opening (142) similar to a slot or cutout along its surface, allowing for the plunger (110) to be inserted into the syringe barrel (120) into the opening via a guided path. The longitudinal opening (142) may generally be C-shaped or U-shaped or any other convenient shape, with one or more recess (143) formed on the inner wall to receive the barrel flange (121). In this configuration, the barrel flange (121) is inserted into the recess (143) via the side opening. Alternatively, in embodiments where the thumb grip barrel adapter (140) has no longitudinal opening, the thumb grip barrel adapter (140) may fully surround the barrel (120) and / or plunger (110). This variation may include a hole (149) that is concentric with the semi-circular recess on the proximal end, arranged to receive the plunger rod of the syringe through the hole (149), providing a fully enclosed and stable grip.

[0133] In some cases, the thumb grip barrel adapter (140) may be configured to clip onto the syringe barrel. The thumb grip barrel adapter (140) may include arcuate legs or clamp arms that partially encircle the barrel (120). These legs or arms may be, but not necessarily, designed to straddle between 180 to 270 degrees of the syringe barrel's outer surface. The clip may include spring-loaded or flexible arms that expand slightly to fit the syringe barrel before contracting to grip it securely.

[0134] In some cases, the thumb grip adapter (140) may be designed as an interlocking two-piece component. Fig. 27 depict views showing multiple components of the adapter system, including two separate thumb grip adapters (140) with interlocking fingers (144). These components may have complementary features such as locking fingers (144) and corresponding apertures (1 5) to securely connect when brought together around the syringe barrel (120). The locking mechanism of the two separate thumb grip barrel adapters (140) can be modified to include alternative securing methods, such as adhesives, press fits, clasps, loop-and-hook fasteners, buckles, pin, or clamp.

[0135] Another possible configuration for the thumb grip barrel adapter (140), as illustrated in Fig. 28, may involve an axial slide-on design. In this implementation, the thumb grip adapter (140) may include a hub portion (146) and a thumb grip portion (141). The hub portion (146) may form a channel configured to receive the syringe barrel. The inner surface of the hub portion (146) may be generally curved and may include an axis positioned along the length of the channel. The inner surface of the hub portion (146) may further have a longitudinal slit (147) to allow for the expansion of the hub portion (146). This design may allow the thumb grip adapter (1 0) to be fitted to different brands and sizes of syringes. In another embodiment, one or more elongate member projections (148) with a modified distal end may be connected to the outer surface of the hub (146). One or more such projections (148) may be configured to engage with a syringe barrel’s flanges (121), as shown in Fig. 28, to secure the syringe inside of the thumb grip adapter (140) utilizing a twist-and-lock feature, where a simple twist of the syringe secures it in place.

[0136] The thumb grip (141) on the thumb grip barrel adapter (140) may be ergonomically shaped to provide comfortable engagement for the user's thumb during operation. In some implementations, the thumb grip (141) may be circular, ovular, semicircular, or have other contoured shapes to optimize grip and control.

[0137] The thumb grip barrel adapter (140), working in conjunction with the finger grip plunger adapter (130) and other components of the ergonomic adapter system (100), may greatly facilitate the use of syringes and similar devices for self-administration of substances by the operator using only one hand. This design may allow for stable, one-handed operation of the syringe, enhancing the user's ability to self-administer substances accurately and comfortably.

[0138] The ergonomic adapter system (100) may be designed to interact with various components of a syringe or applicator. Figs. 20-23 illustrate a perspective view of the adapter system in relation to the key syringe components.

[0139] A plunger flange (111) may be a component of the syringe that interacts with the finger grip plunger adapter (130). In some cases, the plunger flange (111) may be located at the proximal end of the syringe plunger. The plunger flange (111) may be designed to provide a surface for the finger grip plunger adapter (130) to securely attach to, enhancing the user's ability to control the plunger during self-administration.

[0140] Figs. 25 and 26 show that the syringe barrel (120) may be another component that interacts with the adapter system. In some implementations, the syringe barrel (120) may be designed to accommodate the thumb grip barrel adapter (140). The syringe barrel (120) may have features or surfaces that allow for secure attachment of the thumb grip adapter (140), such as the syringe barrel flange (121), enabling stable positioning during use.

[0141] The thumb grip barrel adapter (140) and finger grip plunger adapter (130) may be made of various materials to enhance their functionality and durability. In some cases, these components may be constructed from polymer(s), rubberized polymer(s), silicone, metal, composite materials, and the like. The choice of material may depend on factors such as the desired grip characteristics, compatibility with the syringe components, and the intended application of the device.

[0142] The thumb grip barrel adapter (140) may be designed to interface between the syringe barrel (120). In some implementations, the thumb grip barrel adapter (140) may have features that correspond to the specific dimensions or contours of the syringe barrel (120), allowing for a secure fit.

[0143] Similarly, the finger grip plunger adapter (130) may be configured to interface between the plunger flange (111). This component may be designed to accommodate various plunger flange designs and diameters, enhancing the versatility of the adapter system across different syringe models.

[0144] The thumb grip (141) may be ergonomically shaped to provide comfortable engagement for the user's thumb during operation. In some cases, the thumb grip (141) may be designed with contours or textures that enhance grip and control when interacting with the syringe barrel (120).

[0145] By accommodating these various syringe components, the ergonomic adapter system (100) may provide enhanced functionality for a wide range of commercially available syringes and similar devices. This adaptability may greatly facilitate the use of these devices for selfadministration of substances by the operator using only one hand. The ergonomic adapter system (100) for syringes and applicators comprises multiple components that can work either together or on their own to enhance the user experience during self-administration procedures. Fig. 20 illustrates an exploded view of the key components of the adapter system (100), including the finger grip plunger adapter (130), thumb grip barrel adapter (140), and their respective interfaces with the syringe components.

[0146] In some cases, the finger grip plunger adapter (130) may be designed to securely attach to a plunger flange (111) of the syringe, as shown in Fig. 24. The finger grip plunger adapter (130) may provide ergonomically shaped surfaces for the user's index and / or middle fingers, allowing for improved control and stability during operation. The thumb grip barrel adapter (140) may be configured to attach to the syringe barrel (120), offering a stable point of contact for the user's thumb.

[0147] The interaction between these components may create a system that enhances the ergonomics of the syringe for self-administration. By providing dedicated grip points for the thumb, index finger, and middle finger, the adapter system (100) may allow for more precise control and reduced hand fatigue during use. This configuration may enable users to maintain a stable grip on the syringe while simultaneously controlling the plunger movement, facilitating one- handed operation.

[0148] In some implementations, the barrel adapter (140) and plunger adapter (130), as shown in Fig. 24, may serve as intermediary components between the grip adapters and the syringe parts. These adapters may be designed to accommodate various syringe designs, enhancing the versatility of the system across different brands and models.

[0149] As illustrated in Figs. 20-23, the thumb grip barrel adapter (140) may work in conjunction with the finger grip plunger adapter (130) to provide a balanced and controlled grip. This arrangement may allow users to apply consistent pressure during substance administration, potentially improving the accuracy and comfort of the procedure.

[0150] In some cases, the thumb grip barrel adapter (140) and finger grip plunger adapter (130) may be designed for reusability. The adapters may be configured to be removable, allowing users to transfer them from one syringe to another. This feature may enhance the cost-effectiveness and versatility of the adapter system, as users may be able to use the same ergonomic enhancements across multiple syringes or applicators. The interaction of these components may result in a system that transforms standard syringes into more user-friendly devices for self-administration. By providing ergonomic enhancements that work together, the adapter system (100) may improve stability, comfort, and precision during use, potentially making self-administration procedures more accessible and effective for a wide range of users.

[0151] The adapter system (100) may be used with one or both adapter components, allowing users to customize their setup based on their comfort and control needs. By reducing hand fatigue and improving grip stability, this system enhances safety, precision, and user confidence in performing self-administration. The system is designed to be used with one or both adapter components based on user preference and application needs; in some embodiments the adapter components are configurable to be reusable, disposable, or interchangeable among different syringe or applicator designs.

[0152] In some embodiments of the present disclosure, an ergonomic self-administration plunger (630) including one or more finger grips (640) positioned for the user's index and / or middle fingers is provided for use with a commercially available syringe, for example a 1 mL Becton Dickinson insulin syringe, in combination with a thumb grip barrel adapter (140) configured to fit on the barrel of the insulin syringe. In such embodiments, an ergonomic plunger (630) of the type described for the integrated self-administration syringe embodiments and a thumb grip barrel adapter (140) of the type described for the ergonomic adapter system embodiments are used together with one or more components of a commercial or conventional syringe.

[0153] In other embodiments, a finger grip plunger adapter (130) of the type described for the ergonomic adapter system embodiments is used in combination with a self-administration syringe barrel (610) having an integrated thumb grip (620) of the type described for the selfadministration syringe embodiments, for use with a commercially available plunger.

[0154] It is understood to be within the scope of this disclosure that any commercial or conventional syringe, and any combination of integrated ergonomic syringe components and adapter components described herein, can be configured for one-handed use and self-administration by providing at least one ergonomic component selected from: (i) an ergonomic selfadministration plunger (630) including finger grip(s) (640); (ii) an ergonomic selfadministration barrel (610) including a thumb grip (620); (iii) a finger grip plunger adapter (130); and (iv) a thumb grip barrel adapter (140), the ergonomic components being usable individually or in combination with existing syringe components.

[0155] A number of implementations have been described. Nevertheless, it will be understood that various modifications may be made without departing from the spirit and scope of the disclosure. Accordingly, other implementations are within the scope of the claims below.

[0156] System Integration and Compatibility

[0157] In accordance with some embodiments of the present invention, both the self-administration dispensing device and the ergonomic adapter system are designed to accommodate a wide range of substances including fluids, semi-fluids, medications, creams, gels, and other materials. The systems are particularly advantageous for intimate and hygiene-related tasks, medical applications, and procedures requiring precise control and privacy. The components of the ergonomic adapter system may be constructed from various materials such as polymer(s), rubberized polymer(s), silicone, metal, composite materials, and the like and may be configured as reusable, disposable, interchangeable components etc.

[0158] The major insight of the invention is that when the self-administration dispensing device is aimed by the operator at himself / herself, optimal stabilization is achieved when appropriate grips are fitted to the plunger (630) for the middle and index fingers, while the thumb is positioned in a grip firmly attached to the syringe barrel (610). This configuration addresses the unique biomechanics of self-administration, where users must simultaneously stabilize the self-administration dispensing device, control the plunger (630), and manage inward directional forces.

[0159] The invention provides enhanced control over the dispensing process, allowing users to more precisely administer substances while reducing user error through steadier handling. By simplifying the self-administration process, the self-administration dispensing device empowers users to perform procedures independently without medical training or assistance, providing greater privacy and accessibility for users with limited dexterity, strength, or mobility.

[0160] It will be noted that the present invention addresses issues apparent in the prior art by redesigning the syringe to provide comfort, precision, and ease of use for self-administration. Conventional syringes typically feature flanges on the barrel and a thumb rest on the plunger. This configuration works well when the user can push the plunger from directly behind the syringe in a forward direction, with their fingers positioned comfortably on the flanges. However, for self-admini strati on, the user’s grip, finger placement, and directional force must be adapted to an entirely different, inward-facing setup that conventional syringes fail to accommodate. The Self-Administration Syringe places finger grip(s) on the plunger (630) and a thumb grip on the barrel (610), thus accommodating self-use. It will become apparent that the self-admini strati on dispensing device (600) and the ergonomic adapter system (100) of the present invention will, in a non-limiting manner, be adaptable and useful in many different applications (biomedical, cosmetic, dental, fine electronics, laboratory, veterinary, industrially) where a one-handed inward facing angle or operation is desired or required.

[0161] Operation

[0162] Figs. 6-10 illustrate important aspects of the operation.

[0163] This dispensing device is specifically designed to accommodate the angle, positioning and directional force for self-administration, allowing the user to hold and control the device with one hand. The operation is described as follows:

[0164] 1. Drawing the Substance:

[0165] The user holds the self-administration dispensing device with their thumb placed on the thumb grips (on the barrel 610) while their index and / or middle fingers rest on the finger grip(s) (on the plunger 630). The user pulls the plunger (630) back to draw the desired substance — whether a fluid, semi-fluid, medication, or other substance — into the barrel (610).

[0166] The major insight of the invention is that when the syringe is aimed by the operator or patient at themselves, the plunger and the syringe is stabilized before, during and after operation if:

[0167] Appropriate grips or loops are fitted to the plunger for snugly accommodating the middle and index finger of the injecting hand.

[0168] The thumb is in a grip or loop firmly and snugly attached to the syringe barrel.

[0169] The barrel may optionally have two loops or grips, but in most cases, just a single thumb loop or grip attached to the barrel of the syringe is sufficient.

[0170] The present invention provides various easily fitted adapters for this purpose, which can be used on any conventional syringe or similar device. 2. Administration:

[0171] Once the barrel (610) is filled, the user positions the tip or dispensing end into the appropriate location. Using the same hand, the user pushes the plunger (630) by pressing their index and / or middle fingers against the plunger’s finger grip(s), while stabilizing the self-administration dispensing device with their thumb on the thumb grips.

[0172] 3. One-Handed Operation:

[0173] This unique arrangement of the grips allows the user to control both the barrel (610) and plunger (630) with one hand, ensuring comfortable and precise selfadministration of various substances. The other hand remains free for positioning or adjusting as necessary, offering flexibility and ease of use.

[0174] 4. Designed for Self-Administration:

[0175] Unlike conventional syringes or applicators, which often require the assistance of a caregiver or medical professional, the self-administration dispensing device of the present invention is specifically designed for self-use. The ergonomic arrangement of the finger grip(s) on the plunger (630) and the thumb grip on the barrel (610) allows the user to comfortably hold and operate the self-administration dispensing device using a single hand. This is particularly advantageous for users who prefer or need to perform certain tasks independently, without relying on external assistance.

[0176] 5. One-Handed Operation:

[0177] While some existing devices offer minor changes and improvements, few are specifically designed to enable full one-handed operation. The unique placement of the grips in this design allows users to draw in and dispense substances precisely and comfortably with just one hand. This is crucial in self-administered tasks, where the other hand might be required for positioning, adjusting, or stabilization.

[0178] 6. Multi-Purpose Functionality:

[0179] The present invention is versatile and can be used for dispensing a wide range of substances, such as fluids, semi-fluids, medications, creams, gels solid materials and the like. This flexibility makes the self-administration dispensing device suitable for various applications, and particularly advantageous for intimate and hygiene-related tasks, such as administration of topical creams, gels or injectable medications, rectal or vaginal douching, lubrication, enemas, vaginal insemination, etc. Reduction of User Error:

[0180] The present invention provides greater control over the dispensing process, allowing users to more precisely administer the substance. This ergonomic design allows for steadier handling, minimizing accidental slips or spills during use. Accessibility and Independence:

[0181] By simplifying the self-administration process, the self-administration dispensing device of the present invention empowers users to perform procedures independently without the need for medical training or assistance. This intuitive design not only enhances user confidence but also provides a greater degree of privacy, particularly in intimate or personal care tasks.

Claims

1. CLAIMS1. A self-use dispensing device for administering medications, fluids, semi -fluids and other substances, comprising: a. a barrel having a proximal end and a distal end, said barrel further comprising a thumb grip positioned near the proximal end to accommodate the user’s thumb during operation; b. a plunger inserted into the proximal end of the barrel, said plunger further comprising finger grip(s) positioned to accommodate the user’s index and / or middle fingers during self-use; wherein the arrangement of the thumb grip on the barrel and the finger grip(s) on the plunger provides enhanced comfort and precision for the controlled dispensing during self-use with a single hand, minimizing the risk of user error, spillage, or misapplication.

2. The device of claim 1, wherein said finger grip(s) on said plunger are shaped as full circles, semicircles, flanges, wings, or any other ergonomic shapes to facilitate comfortable engagement by said user’s index and / or middle fingers.

3. The device of claim 1, wherein said components are configurable in various materials, including but not limited to polymer(s), rubberized polymer(s), silicon, metal, and composite materials, and vary in sizes to accommodate different volumes.

4. The device of claim 1 wherein said barrel is transparent or opaque, flexible or rigid, and includes optional features such as measurement markings, tips, nozzles, or external attachments like extensions or adapters.

5. The device of claim 1 wherein said plunger is configured in various sizes, shapes, and textures, including smooth or grooved surfaces for enhanced grip, and optionally includes additional elements such as a rubber stopper or click-feedback mechanisms for precise control.

6. The device of claim 1, wherein the device is configured to dispense substances in various forms, including liquid, gel, cream, paste, or solid, said substances are poured, injected, instilled, dropped, or otherwise passed through the device for precise delivery to the intended site.

7. A method for self-administering medications, fluids, semi-fluids and other substances using the device of claim 1, comprising: a. engaging the thumb grip with a thumb of a user and engaging the finger grip with at least one finger of the user; b. drawing the substance into the barrel by retracting the plunger while stabilizing the barrel with the thumb; and c. dispensing the substance by advancing the plunger while stabilizing the barrel with the thumb.

8. The device of claim 1, wherein the plunger and barrel are made of materials suitable for single-use or reusable purposes for use in medical, reproductive, personal-care, hygiene, cosmetic, laboratory, veterinary, industrial, or other applications.

9. A multi-purpose self-use dispensing device, comprising: a. a barrel for holding a medication, fluid or semi-fluid and other substances, said barrel further comprising a thumb grip for stabilizing the device during operation; b. a plunger having finger grip for engaging the user’s index and / or middle fingers, said plunger being inserted into the barrel for controlled dispensing of the substance; c. wherein the device is configured for a variety of applications requiring selfadministration of various substances for use in medical, reproductive, personal -care, hygiene, cosmetic, laboratory, veterinary, industrial, or other applications.

10. The device of claim 1, wherein the device is configured for self-administration of sperm or processed sperm suspensions for reproductive procedures, including but not limited to intracervical insemination (ICI).

11. The device of claim 1, wherein the device is configured for self-administration of medications and other therapeutic compositions, including but not limited to: insulin, epinephrine, GLP-1 receptor agonists, GIP receptor agonists, dual or multi -agonists targeting GLP-1 and / or GIP pathways, other metabolic therapies and agents, fertility- related medications, vaccines, biologic agents, hormonal therapies, pain medications and analgesics, suppositories, and other injectable or instillable therapeutic substances, for use in home-care, community, clinical, or emergency settings.

12. The device of claim 1 wherein the device is configured for self-administration of substances selected from the group consisting of but not limited to: rectal or vaginal douching, lubrication, enemas, topical creams or gels, or suppository placement.

13. The device of claim 1 wherein the device is configured for self-administration of substances selected from the group consisting of but not limited to: serums, gels, creams, dental treatments, hair treatments, and other dermatologic or cosmetic formulations, and combinations thereof.

14. The device of claim 1 wherein the device is configured for single handed administration of substances to another person, animal, or object.

15. The device of claim 1 wherein the device is configured for single handed administration of substances in research or industrial applications for the controlled, one-handed dispensing of fluids, semi-fluids, or other substances in environments selected from laboratories, chemical processing plants, or manufacturing lines, offering adaptability for tasks that require precision and efficient substance handling.

16. The device of claim 1 wherein said device is adapted for medical or veterinary uses selected from the group comprising wound healing and tissue repair.

17. The device of claim 1 wherein said device is adapted for one handed use by medical or veterinary personnel carrying out laparoscopic, thoracoscopic or endoscopic procedures.

18. An ergonomic adapter system for retrofitting a syringe or applicator to facilitate selfadministration of substances, comprising: a finger grip plunger adapter configured to attach to a plunger of the syringe or applicator, said finger grip plunger adapter comprising at least one finger grip ergonomically positioned for engagement by a user's fingers, a thumb grip barrel adapter configured to attach to a barrel of the syringe or applicator, said thumb grip barrel adapter comprising a thumb grip ergonomically positioned for engagement by a user's thumb; wherein the finger grip plunger adapter and thumb grip barrel adapter are configured to enable single-handed operation of the syringe or applicator during self-administration.

19. The ergonomic adapter system of claim 18, wherein said fingers are index and / or middle fingers.

20. The ergonomic adapter system of claim 18, wherein the finger grip plunger adapter and thumb grip barrel adapter are independently attachable and detachable from the syringe or applicator.

21. The ergonomic adapter system of claim 18, wherein the finger grip plunger adapter and thumb grip barrel adapter are configured for use separately or together without compromising ergonomic benefits and usability.

22. The ergonomic adapter system of claim 18, wherein the system is adaptable for different syringe and applicator models, including prefilled and multi-use devices.

23. The ergonomic adapter system of claim 18, wherein the finger grip plunger adapter is configured to attach to the syringe plunger using an attachment mechanism selected from the group consisting of but not limited to: twist-on mechanism, slide-on mechanism, press-fit engagement, snap-fit mechanism, interlocking two-piece assembly, clamp-based attachment, clip-on attachment, spring-loaded attachment, or other configurations.

24. The ergonomic adapter system of claim 18, wherein the thumb grip barrel adapter is configured to attach to the syringe barrel using an attachment mechanism selected from the group consisting of but not limited to: twist-on mechanism, slide-on mechanism, press-fit engagement, snap-fit mechanism, interlocking two-piece assembly, clamp-based attachment, clip-on attachment, spring-loaded attachment, or other configurations.

25. The ergonomic adapter system of claim 18, wherein the finger grip is shaped as one configuration selected from the group consisting of but not limited to: circular, ovular, semicircular, semi-curved, winged, flanged, contoured, textured, extended, or other ergonomic configurations.

26. The ergonomic adapter system of claim 18, wherein the thumb grip is shaped as one configuration selected from the group consisting of but not limited to: circular, ovular, semicircular, semi-curved, winged, flanged, contoured, textured, extended, or other ergonomic configurations.

27. The ergonomic adapter system of claim 18, wherein the finger grip and thumb grip further include surface features selected from the group consisting of but not limited to: tactile surfaces, textured surfaces, rubberized surfaces, ridges, grip-enhancing coatings, or any combinations thereof, to enhance grip stability and prevent slippage.

28. The ergonomic adapter system of claim 18, wherein the finger grip plunger adapter comprises securing structures selected from the group consisting of but not limited to: internal recess, channel, opening, clamp, flexible band, cavity, groove, circumferential slot, clasp, or elastic fitting configured to receive and engage a plunger flange of varying designs.

29. The ergonomic adapter system of claim 18, wherein the finger grip plunger adapter and thumb grip barrel adapter are constructed from materials selected from the group consisting of but not limited to: polymer(s), rubberized polymer(s), silicone, metal, composite materials, and combinations thereof.

30. The ergonomic adapter system of claim 18, wherein the thumb grip barrel adapter comprises securing structures selected from the group consisting of but not limited to: internal recess, channel, opening, clamp, flexible band, cavity, groove, circumferential slot, clasp, or elastic fitting configured to receive and engage a syringe barrel of varying designs.

31. The ergonomic adapter system of claim 18, wherein the finger grip plunger adapter and thumb grip barrel adapter are configured as components selected from the group consisting of but not limited to: one-time use disposable components, permanently attached components, non-permanently attached components, detachable components, or reusable components for use with multiple syringes or applicators.

32. The ergonomic adapter system of claim 18, wherein the finger grip plunger adapter includes a locking mechanism selected from the group consisting of but not limited to: interlocking fingers, locking apertures, slots, adhesives, press fits, clasps, loop-and-hook fasteners, buckles, pins, or clamps to prevent unintended detachment.

33. The ergonomic adapter system of claim 18, wherein the thumb grip barrel adapter comprises securing structures selected from the group consisting of but not limited to: internal recess, channel, opening, clamp, flexible band, cavity, groove, circumferential slot, clasp, or elastic fitting configured to receive and engage a syringe barrel of varying designs.

34. The ergonomic adapter system of claim 18, wherein the finger grip plunger adapter comprises an interlocking two-piece design with complementary locking fingers and corresponding apertures for secure engagement around the syringe plunger.

35. The ergonomic adapter system of claim 18, wherein the thumb grip barrel adapter comprises a hub portion including a longitudinal slit configured to allow expansion to accommodate different brands and sizes of syringes or applicators.

36. The ergonomic adapter system of claim 28, wherein the hub portion further includes one or more elongate member projections configured to engage with flanges of the syringe or applicator barrel using a twist-and-lock feature.

37. The ergonomic adapter system of claim 18, wherein the finger grip plunger adapter includes a recess configured to receive a portion of the syringe plunger, said recess being shaped as one configuration selected from the group consisting of but not limited to: semi-circular recess, V-shaped recess, or contoured recess with corresponding groove features.

38. The ergonomic adapter system of claim 18, wherein the thumb grip barrel adapter includes a longitudinal opening configured to allow plunger insertion into the syringe barrel via a guided path, said longitudinal opening being shaped as one configuration selected from the group consisting of but not limited to: C-shaped opening, U-shaped opening, or slotted opening.

39. The ergonomic adapter system of claim 18, wherein the system is configured for use in medical applications for self-administration of substances selected from the group consisting of but not limited to: medications, injections, therapeutic fluids, insulin, epinephrine, or other pharmaceutical agents.

40. The ergonomic adapter system of claim 18, wherein the system is configured for use in personal-care or reproductive applications selected from the group consisting of but not limited to: vaginal insemination, rectal or vaginal douching, lubrication, enemas, topical creams or gels, or suppository placement.

41. The ergonomic adapter system of claim 18, wherein the system is configured for use in dermatologic and cosmetic applications, including dispensing serums, gels, creams, dental treatments, hair treatments, and other dermatologic or cosmetic formulations, and combinations thereof.

42. A kit for retrofitting syringes and applicators for self-administration, comprising:1030 a. at least one finger grip plunger adapter configured to attach to a plunger of a syringe or applicator and provide at least one or more finger grips for a user's fingers; b. at least one thumb grip barrel adapter configured to attach to a barrel of the syringe or applicator and provide a thumb grip for a user's thumb; c. instructions detailing installation and use configurations for different syringe brands and 35 models.

43. The kit of claim 42, wherein said finger(s) are index and / or middle fingers.

44. The kit of claim 42, wherein the finger grip plunger adapter and the thumb grip barrel adapter are provided in multiple sizes to accommodate syringes or applicators of varying diameters and lengths. 40 45. The kit of claim 42, further comprising a set of interchangeable adapter grips with varying contours, textures, and materials to suit different user preferences and hand sizes.

46. The kit of claim 42, wherein the finger grip plunger adapter comprises attachment mechanisms selected from the group consisting of but not limited to: twist-on mechanism, slide-on mechanism, interlocking two-piece assembly, or clamp-based attachment. 45 47. The kit of claim 42, wherein the thumb grip barrel adapter comprises attachment mechanisms selected from the group consisting of but not limited to: twist-on mechanism, slide-on mechanism, interlocking two-piece assembly, or clamp-based attachment with longitudinal slit for expansion.

48. The kit of claim 42, wherein the finger grip plunger adapter and thumb grip barrel adapter 50 are constructed from materials selected from the group consisting of but not limited to: polymer(s), rubberized polymer(s), silicon, metal, composite materials, or combinations thereof.

49. The kit of claim 42, wherein the finger grip(s) and thumb grip are shaped as configurations selected from the group comprising of: circular, ovular, semicircular, semi55 curved, winged, flanged, contoured, textured, extended, or other ergonomic configurations.

50. The kit of claim 42, wherein the finger grip plunger adapter and thumb grip barrel adapter are configured as reusable components for use with multiple syringes or applicators.

51. The kit of claim 42, further comprising cleaning solution and sanitization instructions for maintaining the finger grip plunger adapter and thumb grip barrel adapter between uses.1060 52. The kit of claim 42, wherein the instructions include diagrams illustrating proper finger and thumb placement on the adapter components for optimal ergonomic benefit during selfadministration procedures.

53. The kit of claim 42, wherein the kit is packaged in a portable case suitable for travel or storage in medical bags, and includes compatibility charts for different syringe and applicator 65 models.

54. A kit for adapting a commercial or conventional syringe for self-admini strati on, the kit comprising: a. a plunger configured for self-administration and configured to be slidably received within a barrel of a commercial or conventional syringe, the plunger including one or more 70 finger grips configured to be engaged by one or more fingers of a user during operation; b. a thumb grip barrel adapter configured to be fitted onto a barrel of the commercial or conventional syringe and including a thumb grip configured to be engaged by a thumb of the user during operation; and c. instructions describing installation and use configurations of the plunger and the thumb 75 grip barrel adapter for different syringe brands and models; wherein, when the plunger is slidably received within the barrel of the commercial or conventional syringe and the thumb grip barrel adapter is fitted onto the barrel, the one or more finger grips on the plunger and the thumb grip on the thumb grip barrel adapter are together configured to enable one-handed self-administration of a substance by the user. 80 55. A kit for adapting a commercial or conventional syringe for self-admini strati on, the kit comprising: a. a barrel configured for self-administration and defining an internal cavity for holding a substance, the barrel being configured to receive a plunger of a commercial or conventional syringe and including a thumb grip configured to be engaged by a thumb of a user during 85 operation; b. a finger grip plunger adapter configured to be attached to a plunger of the commercial or conventional syringe and including one or more finger grips configured to be engaged by one or more fingers of the user during operation; and c. instructions describing installation and use configurations of the barrel and the finger1090 grip plunger adapter for different syringe brands and models; wherein, when the plunger of the commercial or conventional syringe having the finger grip plunger adapter attached thereto is slidably received within the barrel, the thumb grip on the barrel and the one or more finger grips on the finger grip plunger adapter are together configured to enable one-handed self-administration of a substance by the user.1095

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