Process of making injection device beneficial in reducing user's distraction from injection site

Abstract

An injection device such as a syringe capable of providing feedback during the injection process to remove the need for the person using the device to move their focus from the injection site to the d

Description

By Seyed Yahya Hosseini Nasab, Seyed Javad Hosseini Nasab Field of invention The present invention relates to injection devices like syringes and similar products that a defined amount of liquid is pulled in and pushed out of it and dosing of this amount is important. Background of invention Injection devices like syringes are used for various purposes in medical and healthcare system. The clinicians are dependent on syringes to inject material like drugs and medicine to the patients. Delivery of treatment is also varied among range of specialist. For example, cosmetic surgeons need to inject right amount at the right location to get the desirable outcome. The quality of their work is determined by two factors: location of injection and amount of injection. During the course of treatment, doctor may inject to multiple sites on the body or face of the person who is interested in getting beauty treatments. Human eyes can be focused on one place at a time. If the person wants to see or check something at another spot, then the person needs to move the eye or tilt the head also the eye will change lens's thickness so the person would be able to see the new location. These result in distraction if a person needs to monitor two spots simultaneously by eye. It would be more convenient and precise if eye is focused in one location while another sense is engaged for monitoring the derivatives of changes in the other location. When an operator is injecting some kind of material like Botox to a person, it is very important that right amount is injected at right location. Operator needs to look carefully at the injection site. Also, the operator needs to look carefully at the measurements on the syringe to check and monitor the injected amount. All these should be done while operator is pushing the fluid out of the syringe. These monitoring of injection site and injection amount simultaneously by eye will result in distraction and loss of accuracy consequently reduction of satisfaction in the outcome. Syringes as commonly known in the healthcare system are made of parts that hold and push the liquid inside them. Also, a needle is connected to its head to pierce the skin and tissues to deliver the injection to the desired location of the body. Conventional syringes are made to be used as a single shot to inject once at one location, so the user is able to focus on the injection site without significant need to monitor the injection amount. If the aforementioned syringe is used in settings where the user needs to inject various amount at multiple sites, then user needs to divide its attention. He or she needs to look at the needle and where it's pointing to pierce simultaneously monitor the amount that is pushed out of syringe to the body. This means cosmetic surgeons are treating their consumers without enough attention to either the location of injector or the injection amount. Either will result in dissatisfaction. Botox is common material used by cosmetic clinicians to enhance the beauty of people face. It is commonly applied to the face by injections. Injections of Botox cause paralysis of parts in the face. The amount of injection determines the extent of paralysis. Also, the amount of paralysis will result in the changes in face. It is significantly important that both sides of face are treated completely equal in an ideal situation. But in actual practical means, it is unlikely to happen because it's very difficult to monitor both location and dose of injection to be equal for both sides of face. Consequently, the experience of clinicians plays an important but not sufficient part in excellency of outcome. It is needed to help clinicians injecting right dose by reducing distraction from injection site, for example via triggering other senses than vision since surgeon can focus its eyes on the injection site while being sure right amount is injected by means other than looking at the measurements on the syringe. To trigger users' senses other than vision, a device needs to be reactive to changes in means that don't need involvement of eye. For example, a vibration can trigger biological sensors in skin or ear. There has been attempts to improve syringes by additional parts to make them sophisticated to be perceived as a way of giving feedback to the user, but those attempts have been failed because the complication makes the manufacturing, distribution, use, dispose and recycle of such syringes and devices very difficult, costly and inappropriate. Syringes are disposable medical equipment with cost of commonly fraction of a GBP. They are usually moulded at mass. They are single use and its very important that minimal amount of material be used in their production to moderate waste and be considerate about sustainability and environment. If to make a syringe for triggering senses, lots of material or complicated manufacturing process are used then the cost will increase. Consequently, affordability will decrease so less people will benefit from it. Also, excessive use of material for single use products can result in damages to the environment. There is a need for a simple improvement process to make syringe, a device to trigger parts of body other than eye regarding the injection amount while user is injecting. The simplicity of solution will make it affordable so masses would be able to use it. Summary of the invention It would be desirable to have a process for making injection devices to trigger senses other than vision to inform the user about the injection amount while reducing the distraction from injection site during the procedure. It's an objective of present invention to reduce user's distraction from injection site while right amount of material is being injected. Disclosed is process of making injection device beneficial in reducing user's distraction from injection site by addition of features to the piston or container to trigger senses other than vision regarding the amount of injection while the user is pushing its content out of it into the injection site which is very important to be the right amount at the right location. It's further objective of present invention to increase user's attention to the injection site via avoiding the distraction to the measuring system. It's further objective of present invention to be manufacturable injection device with attachments that are interacting while the injection is happening to inform the user about the dose of injection. It's further objective of present invention to modify the manufacturing of injection devices like syringes in cost effective manner so large population be able to benefit from the present invention. It's further objective of present invention to suggest attachment parts for injectable device to make it provider of information about the amount of injection via senses other that vision so doctor would understand the amount of injection without looking at measurements on the device. It's further objective of present invention to have serrated piston to interact with a thin part of container of syringe to cause vibration as a response which its numbers are proportionate to the amount of injection to the user. It's further objective of present invention to make piston serrated by cutting fragments from it. It's further objective of present invention to make piston serrated and container having a thin layer extension both via injection moulding. Accordingly, these features should be crafted in the mould making procedure. It's further objective of present invention to either or both of features on piston and container can be achieved by attachment of parts to them. It's further objective of present invention to suggest methods of mass manufacturing an injection device that help user to be attentive to the location of injection while being informed about the amount of injection. It's further objective of present invention to inform the user from beginning and end of each injection dose. This can be achieved by special design of each segment of serrated features on piston of syringe as well as flexibility and partial movement of the thin flexible part from container. It's further objective of present invention to be produced by making an initial mould to be trailed by making the thin part of container thinnest and gradually making it thicker to getting to the right proportion which will interact properly in connection with features on the piston to inform the user from the progression of the injection process as result of movement of the piston. It's further objective of present invention to help user inject Botox or similar materials like cosmetic fillers to the patients and other people who seek beauty help in a manner that is involved most attention on the location of the injection while the amount of Botox or other materials is monitored by listening or touch or other senses. This is very important that container and piston of injection device has features like a thin layer on container and a zigzag on edge of the piston to interact with each other. As a consequence, the thin layer will be moved or vibrate or get affected in other forms from the interaction with piston as the injection process start, continue and end. In each step of the injection process the outcome of the interaction between container and piston can inform the user about the process and the magnitude of it. It's further objective of present invention to make serrated design on the piston of the syringe as such that they cause build-up of tension in part of the container that interact with piston while piston is moved then sudden release of that part cause bouncing and vibration as response to inform the user of incremental progression of the injection process. It's further objective of present invention to be same size as conventional syringes since the patients and people are afraid of receiving injection from large injection devices. The thin part extruded from the container is illustration of invisible mechanism since it's virtually unseeable while causing response as result of interacting with features like bumps on moving piston of the injection device during the injection. So, the user get benefit of giving full attention to the location of the injection It's further objective of present invention to be used for injection of novel cosmetic products like polynucleoids and stem cells as well as old fashioned products like Botox and fillers because for all of them injection at multiple sites with same amount should be done accurately and it is very important that doctor / user be able to concentrate on the injection site while getting informed about the amount of injected material via other senses. This very helpful while aesthetic clinicians are injecting the people for beauty services because the end result is very dependent on amount and place of injection. It's further objective of present invention to not hinder the movement of piston as it is conventionally pulled by the user while filling the container of syringe without need for changing the setting or modification of injection device. □ It's further objective of present invention to facilitate the potential medical approval for applying the process of present invention in the clinics by making sure the interaction between the container and piston happen without contamination of content of the container. It's further objective of present invention to be manufactured as of the modification of production of conventional syringes to add the features to the piston and container without need to moulding other additional parts that are going to be added to the syringe which will complicate the assembly process. For example, the part of container that will intersect with feature on piston can be part of design for a new mould for container so the new mould will be used to produce the container with this feature as a single unit. The replacement of moulds is something fairly convenient on the existing and new production line and this is part of the process of helping the person who is injecting to another person be attentive to the location of injection while considering the amount of injection via conception different from visual. Present invention is unique when compared with other known mechanism for improvement of syringes because present invention is a way of reducing user's distraction from injection site without losing the attention to the dose of injection since unique features are introduced on the piston and container of syringe in a simple modification of manufacturing process to help user understand the amount of fluid that's being pushed via senses other than vision while interaction between the container and piston is happening uniquely and the manufacturing adaptations aren't far different from the conventional mass manufacturing of syringes so the process of present invention can be used at large scale with short period needed for retrofitting, adaptation and ordering of new machinery. This disclosure will now provide a more detailed and specific description that will refer to the accompanying drawings. The drawings and specific descriptions of the drawings, as well as any specific or alternative embodiments discussed, are intended to be read in conjunction with the entirety of this disclosure. Process of making injection device beneficial in reducing user's distraction from injection site may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein; rather, these embodiments are provided by way of illustration only and so that this disclosure will convey understanding to those skilled in the art. Description of the drawings and the preferred embodiments Figure 1, diagrams are shown illustrating a variation of the present invention in which one of the methods of manufacturing modification of syringe to help user with dosing the injection without being distracted from looking at the injection site is shown. Figure 2, a diagram is shown illustrating a variation of the present invention in which part 14 from container 12 can interact with serrated part 13 from piston 11 while user is pushing or pulling the piston 11 in and out of the container 12. Figure 3, a diagram is shown illustrating a variation of the present invention in which piston 11 has two serrated parts. Figure 4, a diagram is shown illustrating a variation of the present invention in which part 14 and 13 are intersecting at two locations. Figure 5, a diagram is shown illustrating one of the potential ways that the plunger 11 with serrated part 13 can be made for the present invention. Figure 6, a diagram is shown illustrating one of the potential ways that the plunger 11 with serrated part 13 can be made. Figure 7, a diagram is shown illustrating one of the potential ways that the serrated part 13 for the present invention can be created. Figure 8, a diagram is shown illustrating two different ways that the container 12 for the present invention can be made. Figure 9, a diagram is shown illustrating a variation of the present invention in which a modification for container of syringe has been shown. Figure 10, a diagram is shown illustrating one of the potential ways of manufacturing the container 12 for present invention. Figure 11, a diagram is shown illustrating a variation of the present invention. Figure 12, a diagram is shown illustrating a variation of the present invention in which part 14 is formed with the container 12. Figure 13, a diagram is shown illustrating a variation of method of making container 12 together with part 14. Referring now to figure 1, diagrams are shown illustrating a variation of the present invention in which one of the methods of manufacturing modification of syringe to help user with dosing the injection without being distracted from looking at the injection site is shown as part 14 is a thin piece that is attached to the container 12 as shown by arrow 20 in section A of the figure. The attachment of part 14 to the container can happen by means common in the industry such as hotmelt, ultrasound, glue, and laser. As shown in section B of this figure, part 14 is attached to the container 12 as such the end 15 will be close to the saw-like part 13 of piston 11. The vicinity of end 15 and serrated part 13 result in their interaction when the piston is moved in or out of the container by the user. The user is informed from outcome of this interaction via senses other than vision so user doesn't need to look at the measurements on injection device so distraction is reduced and location and dose of injection each are monitored via different senses of the user so user can perform operation that injection at multiple locations is needed conveniently and efficiently and accurately as it is desired by the person who is receiving the injection. Referring now to figure 2, a diagram is shown illustrating a variation of the present invention in which part 14 from container 12 can interact with serrated part 13 from piston 11 while user is pushing or pulling the piston 11 in and out of the container 12 to cause movement of material that is encapsulated in container 12. Intersection of end 15 of part 14 with incremental bumps 13 on piston 11 will result in informing response proportionate to the amount of material inside the container 12 that is being pushed by the user to be injected to a location on an individual body. Making the injection device as illustrated in this figure can help user to understand the amount of injection as each of the bumps 13 will move end 15 of part 14 by certain distance then tension is being build up at place that the part 14 is connected to the container 12 until a threshold is reached in which the potential energy would be released suddenly and the part 14 hit the piston 11 at the bump adjacent to the one that has caused the accumulation of tension. This burst of energy will cause vibration and ripple effect in air and the syringe so the user will understand that a certain dose of material has been moved as a consequence there is no need for the user to look at the measurements to decide whether the injection should be continued or stopped. The length of each bump and distance between them are determining factor for the corresponding injected amount. There can be various increments for injection amount around the piston which user rotate to choose the desired one or there can be syringes with various dose unit which user buy multiple ones and choose the one appropriate for each application. Referring now to figure 3, a diagram is shown illustrating a variation of the present invention in which piston 11 has two serrated parts like part 13 to help user to choose the appropriate increment via rotation of the piston 11. Referring now to figure 4, a diagram is shown illustrating a variation of the present invention in which part 14 and 13 are intersecting at two locations simultaneously. Referring now to figure 5, a diagram is shown illustrating one of the potential ways that the plunger 11 with serrated part 13 can be made for the present invention. In here special serrated part 13 are provided as a separate piece which can be added to the plunger 11. Referring now to figure 6, a diagram is shown illustrating one of the potential ways that the plunger 11 with serrated part 13 can be made for the present invention, using cast 61. Referring now to figure 7, a diagram is shown illustrating one of the potential ways that the serrated part 13 for the present invention can be created by cutting the plunger 11 to achieve a desired shape. Part 70 is showing the plunger before creating the required cuts to form serrated part 13. Referring now to figure 8, a diagram is shown illustrating two different ways that the container 12 for the present invention can be made. In part A piece 14 is added to the container, however in part B piece 14 is created on the container by injection moulding device. Referring now to figure 9, a diagram is shown illustrating a variation of the present invention in which a modification for container of syringe has been shown from two different point of view. Referring now to figure 10, a diagram is shown illustrating one of the potential ways of manufacturing the container 12 for present invention. In here, part of injection moulding cast 101 has feature 102 on it to let the part 14 be created with container 12. Embodiment 101 is part of the moulding machine as used in the industry for making conventional injection devices like syringes. The role of this part is to form the inner space of the container 12 by keeping the material as shell around it. This is an example of modification of manufacturing to make injection devices beneficial in reducing the user's distraction from injection site. Because as result of this change, a feature 14 is formed on the container that will intersect with increments 13 on the piston 11 to cause informed decision for user about the dose of injection without need for looking at the measurements on the syringe. This is very helpful in case of aesthetic application in cosmetic clinics since the users need to inject at multiple locations within a short period of time with high accuracy and lots of attention is given to the location of the injections while dosing is monitored via other senses. The syringe is single use in terms of using it for one application / operation / treatment session for each individual but during each single application, multiple injections at various location can happen. The present invention is beneficial for single use considering the aforementioned explanation about single use since the waste management and sustainability aspects of it are considered while enhancing the user experience by providing means for getting informed about the injection amount. The waste management and sustainability aspects of present invention are considered by making it very similar in size and amount of material used in production to the conventional single use syringes that doctors and clinicians are already using so the added benefit of informed decision doesn't cause damage to the environment. This makes present invention a superior solution over other alternatives. Referring now to figure 11, a diagram is shown illustrating a variation of the present invention. Referring now to figure 12, a diagram is shown illustrating a variation of the present invention in which part 14 is formed with the container 12. Referring now to figure 13, a diagram is shown illustrating a variation of method of making container 12 together with part 14 via moulding process 130 as it is common in the industry to be done at scale. Different features, variations and multiple different embodiments have been shown and described with various details. What has been described in this application at times in terms of specific embodiments is done for illustrative purposes only and without the intent to limit or suggest that what has been conceived is only one particular embodiment or specific embodiments. It is to be understood that this disclosure is not limited to any single specific embodiments or enumerated variations. Many modifications, variations and other embodiments will come to mind of those skilled in the art, and which are intended to be and are in fact covered by this disclosure. It is indeed intended that the scope of this disclosure should be determined by a proper legal interpretation and construction of the disclosure, including equivalents, as understood by those of skill in the art relying upon the complete disclosure present at the time of filing. The invention has now been described in detail for purposes of clarity and understanding. However, it will be appreciated that certain changes and modifications may be practiced within the scope of the specification. Accordingly, it should be recognized that many other systems, functions, methods, and combinations thereof are possible in accordance with the present invention. Thus, although the invention is described with reference to specific embodiments and figures thereof, the embodiments and figures are merely illustrative, and not limiting of the invention. Claims 1. Process of making injection device beneficial in reducing user's distraction from injection site comprising modification of manufacturing of conventional injection devices and helping user to get visionally focused on location of injection while other senses are triggered in proportional to amount of injection. 2. Process of making injection device beneficial in reducing user's distraction from injection site according to claim 1, in which the conventional injection device comprising a container which encapsulates the injectable material and the piston which pushes the content of the container out through the head which consequently the liquid flow out of needle to the injection site. 3. Process of making injection device beneficial in reducing user's distraction from injection site according to claim 1, in which the modification of manufacturing of conventional injection devices is involved with creating a modular design that interactions between components are possible with multiple mechanisms to produce the desired effect of informed dosing decisions without distraction from injecting at the right location. 4. Process of making injection device beneficial in reducing user's distraction from injection site according to any of the preceding claims, in which manufacturing method is modified to introduce features on container and piston during the manufacturing process to create feedback loop about the amount of injection to the user while the piston is being pushed without disturbing the attention from injection process. 5. Process of making injection device beneficial in reducing user's distraction from injection site according to any of the preceding claims, in which user is concentrating on location of injection while monitoring the amount of injection via other senses, consequently the outcome of operation is more desirable than trying to dose and inject simultaneously. 6. Process of making injection device beneficial in reducing user's distraction from injection site according to any of the preceding claims, in which desirable outcome is a competitive advantage that user can benefit from it to attract people who are interested in getting services that are mediated by present invention as the user is focused on each injection site and monitor the amount without disruption so each session of therapy conveniently end up with appropriate outcome. 7. Process of making injection device beneficial in reducing user's distraction from injection site according to any of the preceding claims, in which competitive advantage is used to promote clinicians who are using a device that allows increased attention to local injections while avoiding distractions to dosing the amount of injection. 8. Process of making injection device beneficial in reducing user's distraction from injection site according to any of the preceding claims, in which clinicians are cosmetics surgeons who inject botulinum toxin which is known as Botox to paralyse muscles as well as materials that are known as fillers to make people more beautiful by using right amount at right location which is more accurate if surgeon is focused on site of injection by eye and use other means to understand injection amount. 9. Process of making injection device beneficial in reducing user's distraction from injection site according to claim 4, in which features include attachments to the piston and container that intersect while the piston is moving through the container whilst user is focused on the injection site and is interested to know how much of the material is being ejected through the needle as result of piston movement. 10. Process of making injection device beneficial in reducing user's distraction from injection site according to claim 9, in which attachments to containers and piston are included as part of the package and are available for the user at the time of purchase. 11. Process of making injection device beneficial in reducing user's distraction from injection site according to claim 9, in which attachments to containers and piston are replaced by components which are made integrated into the container and piston during the moulding of pieces. 12. Process of making injection device beneficial in reducing user's distraction from injection site according to claim 9, in which attachments to containers and piston are replaced by removal of fragments from the container and piston during the manufacturing or assembly. 13. Process of making injection device beneficial in reducing user's distraction from injection site according to any of the preceding claims, in which helping the user to focus is done by manufacturer and distributors of conventional injection devices via providing an injection device that has features like a thin extrusion on container and a zigzag on edge of the piston to interact with each other, as a consequence, the thin layer will be moved or vibrate or get affected in other forms from the interaction with piston as the injection process start, continue and end so, in each step of the injection process the outcome of the interaction between container and piston can inform the user about the process, its progress and the magnitude of it. 14. Process of making injection device beneficial in reducing user's distraction from injection site according to claim 1, in which helping the user to focus is done by manufacturerand distributors of conventional injection devices via prefabricating the parts to add features into the injection device or providing parts that user can buy them separately to add features to container and piston so the user will be able to inject conveniently. 15. Process of making injection device beneficial in reducing user's distraction from injection site according to claim 8, in which means to understand injected amount are involved touch and hearing of user to recognise the interaction between features of container and piston while injecting consequently understanding the accumulation of the fluid that is injected which is proportional to the amount and number of interactions. 16. Process of making injection device beneficial in reducing user's distraction from injection site according to any of the preceding claims, in which the piston has features that allow the manufacturer to produce features on the container to cause informed decision making by the user about the dosage needed for injecting the right amount at the right location while the piston is being pushed. 17. Process of making injection device beneficial in reducing user's distraction from injection site according to any of the preceding claims, in which the informed decision is caused by receiving response about the dosage without being distracted from the location of injection that the fluid is being pushed through the needle as result of piston movement while the response is result of interaction between part of the container that is a thin layer and incremental bumps on the piston that are collectively placed as such to not get contact with the material that is encapsulated by the injection device so no contamination to the injected material so easier to get potential medical approvals. 18. Process of making injection device beneficial in reducing user's distraction from injection site according to any of the preceding claims, in which response is used for decision making by the user to figure out how much has been consumed and how much more is needed to complete the procedure at each individual injection site to make sure the result of application of injection device that its manufacturing process is modified is superior to conventional injection devices. 19. Process of making injection device beneficial in reducing user's distraction from injection site according to any of the preceding claims, in which amount of injection is determined by the amount and number of interactions between fragments of components of piston and container that are incremental bumps and thin vibrating piece respectively by being made as part of the manufacturing process of the injection device via changes to mould or addition of parts in the assembly step or cutting of the fragments and slices after the production. 20. Process of making injection device beneficial in reducing user's distraction from injection site according to any of the preceding claims, in which interaction is caused by tension and movement of features on container and piston against each other that consequently results in formation of sensational stimuli from injection progression that its number and amount is proportional to the number of interactions. 21. Process of making injection device beneficial in reducing user's distraction from injection site according to claim 3, in which modular design is result of moulding and adding the features to common method of manufacturing injecting devices. 22. Process of making injection device beneficial in reducing user's distraction from injection site according to any of the preceding claims, in which manufacturing process is done via addition of features by least amount of modifications and cost so the injection device that is produced by methods of present invention can either be market and sold at higher profit margin or be market and sold at affordable price point to become accessible for larger population. 23. Process of making injection device beneficial in reducing user's distraction from injection site according to any of the preceding claims, in which the sustainability is achieved by efficient use of material for a single use product. 24. An injection device beneficial in reducing user's distraction from injection site according to any of the preceding claims to help user to be focused on the point of injection while injecting the right amount without being distracted by dosing mechanism consequently a person that is being injected by method of present invention will receive multiple injections at various locations while the accuracy of locations and doses of injections are not compromised and user can be quick in finishing the operation because the person who is receiving injections will feel uncomfortable if each injection take long because the presence of needle of injection device in the body is unpleasant both physically and mentally. 25. Process of reducing user's distraction from injection site by modification of manufacturing of conventional injection devices to help user getting visionally focused on location of injection while being triggered by other senses in proportional to amount of injection. Amendments to the claims have been filed as follows 09 08 24

Claims

1. A syringe comprising a container and a piston, wherein the piston is configured with a serrated surface and the container includes a thin, flexible extension that interacts with the serrated surface, such that movement of the piston within the container generates a series of tactile and / or audible signals, the signals corresponding to incremental doses of fluid being injected, thereby providing feedback to the user without requiring visual confirmation.

2. The syringe according to claim 1, wherein the serrated surface of the piston includes a plurality of ridges or teeth, and the flexible extension of the container is positioned to engage with these ridges or teeth as the piston moves, causing the extension to flex and release in response to the ridges, generating the feedback signals.

3. The syringe according to claim 1, wherein the flexible extension is integrally formed with the container during the injection molding process, and is designed to be sufficiently thin to produce a distinct vibration or sound when it interacts with the serrated surface of the piston.

4. The syringe according to any preceding claim, wherein the piston is rotatable, allowing the user to select different serrated surfaces or increments on the piston, which correspond to different dosing increments, thereby enabling customizable feedback based on the amount of fluid to be injected.

5. The syringe according to any preceding claim, wherein the flexible extension is replaceable or adjustable, allowing for variations in the type or intensity of feedback provided to the user.

6. The syringe according to any preceding claim, wherein the interaction between the serrated surface of the piston and the flexible extension of the container is configured such that the feedback signal is proportional to the volume of fluid injected, with each signal corresponding to a predetermined volume increment.

7. The syringe according to any preceding claim, wherein the feedback mechanism is designed to minimize interference with the visual monitoring of the injection site, thereby allowing the user to focus primarily on the injection location while still being informed of the injection progress through tactile or audible cues.

8. The syringe according to any preceding claim, wherein the design of the serrated surface and flexible extension is optimized to ensure that no part of the feedback mechanism comes into contact with the fluid being injected, thereby maintaining sterility and preventing contamination.

9. The syringe according to any preceding claim, wherein the flexible extension and serrated surface are designed to interact in a way that produces a unique pattern of signals, distinguishable from those produced by existing syringes, thereby enhancing the accuracy and reliability of dosing during injections.09 08 2410. The syringe according to any preceding claim, wherein the feedback mechanism is integrated into the syringe without adding significant bulk or complexity, ensuring that the syringe remains similar in size and usability to conventional syringes, while providing the added benefit of non-visual feedback.

11. A syringe comprising a container and a piston, wherein the piston is configured with a serrated surface and the container includes a thin, flexible extension integrally formed with the container, the flexible extension being positioned to engage with the serrated surface, wherein movement of the piston within the container causes the flexible extension to flex and release, generating a series of tactile and / or audible signals that correspond to incremental doses of fluid being injected.

12. The syringe according to claim 11, wherein the serrated surface of the piston is configured with a series of ridges or teeth that are non-uniform, designed to interact with the flexible extension in a manner that produces a varying pattern of feedback signals, enhancing the accuracy of dosage delivery.

13. The syringe according to claim 11, wherein the flexible extension is designed to vibrate or oscillate upon engagement with the serrated surface of the piston, producing a tactile feedback that is perceivable without visual confirmation, wherein the intensity of the feedback can be modified by adjusting the rotation or alignment of the piston within the container.

14. The syringe according to claim 11, wherein the flexible extension and serrated surface are configured to interact without direct contact with the fluid being injected, ensuring sterility and preventing contamination, with the feedback mechanism fully isolated from the injectable material.

15. The syringe according to any preceding claim, wherein the flexible extension is replaceable or adjustable, allowing for the customization of the feedback experience based on the specific requirements of the injection procedure.

16. The syringe according to any preceding claim, wherein the feedback mechanism includes a modular design that allows for the interchangeable use of different pistons or extensions, providing different feedback patterns or intensities based on user preference or application needs.

17. The syringe according to any preceding claim, wherein the container is manufactured using an injection molding process that simultaneously forms the flexible extension as part of the container, ensuring consistent interaction with the serrated surface of the piston during use.

18. The syringe according to any preceding claim, wherein the flexible extension is positioned within a dedicated channel or groove along the interior wall of the container, the channel or groove being specifically shaped to guide the movement of09 08 24the extension as it interacts with the serrated surface of the piston, thereby enhancing the consistency and precision of the feedback signals.

19. The syringe according to any preceding claim, wherein the serrated surface of the piston includes multiple distinct sections, each section having differently shaped or spaced ridges, allowing the user to select between different feedback profiles by rotating or repositioning the piston within the container.

20. The syringe according to any preceding claim, wherein the feedback mechanism is designed to generate different types of signals, such as a combination of tactile, audible, and visual cues, where the visual cues are generated by a secondary feature, such as a marking or color change on the piston or container that becomes visible as the piston moves.

21. The syringe according to any preceding claim, wherein the flexible extension is made from a material with specific elastic properties, such that it returns to its original position after each interaction with the serrated surface, ensuring consistent feedback throughout the injection process.

22. The syringe according to any preceding claim, wherein the piston includes a locking mechanism that engages once a predetermined volume of fluid has been injected, the locking mechanism being designed to prevent further movement of the piston until it is manually reset, thereby providing an additional safeguard against overdosing.

23. The syringe according to any preceding claim, wherein the flexible extension is detachable and can be replaced with extensions of varying stiffness or thickness, allowing the user to customize the feedback intensity to match different injection requirements.

24. The syringe according to any preceding claim, wherein the container is designed with an ergonomic grip that aligns the user's hand with the flexible extension, ensuring that the tactile feedback is directly felt by the user during the injection process.

25. The syringe according to any preceding claim, wherein the piston is equipped with an adjustable tension mechanism that allows the user to control the force required to push the piston, thereby adjusting the intensity of the feedback generated by the interaction with the flexible extension.

Images