Needle-based device based on a direct winged coupling of its needle hub to the barrel and a safety mechanism implemented therein

Abstract

A needle-based device comprises a barrel as its main body and a needle. A portion of the needle is housed within and bonded to the barrel so that the needle protrudes from the barrel. The needle-based device further comprises a needle cover for protecting the entire length of the needle protruding from the barrel based on completely surrounding the entire protruding length of the needle in a first non-use state of the needle-based device. The barrel comprises a wing on the side of its outer wall. The wing extends perpendicularly to the length of the barrel to join the needle cover to the barrel in the first non-use state of the needle-based device.

Description

[0001] Priority Statement

[0002] This application is a continuation-into-the-part of co-pending U.S. Patent Application No. 17 / 494,904, entitled “Needle-Based Device with a Safety Mechanism Impled Therein,” filed October 6, 2021 (which is a continuation-into-the-part of U.S. Patent Application No. 16 / 831,824, entitled “Needle-Based Device with a Safety Mechanism,” filed March 27, 2020 and granted November 16, 2021, as U.S. Patent No. 11,173,254), and U.S. Patent Application No. 17 / 234,793, filed April 19, 2021 (also entitled “Needle-Based Device with a Safety Mechanism,” and granted January 18, 2022, as U.S. Patent No. 11,224,699), and claims priority to the aforementioned applications. U.S. Patent Application No. 17 / 234,793 is a continuation-in-part of U.S. Patent Application No. 16 / 831,824 and claims priority thereto. The contents of the foregoing applications are incorporated herein by reference in their entirety. Technical Field

[0003] This disclosure generally relates to a needle-based device, and more specifically, to a needle-based device based on a direct wing-like combination of its needle sheath and syringe barrel, and a safety mechanism implemented therein. Background Technology

[0004] Needle-based devices can be syringes, hypodermic needles, pen syringes, and / or fluid collection devices. The needle of a needle-based device can be attached to a needle hub, which in turn can be attached to the syringe barrel of the needle-based device. The attachment of the needle to the needle hub may be unstable. Furthermore, although the assembly of needle-based devices is modular, needle hubs can be added to multiple components required for assembling the needle-based device. Summary of the Invention

[0005] Methods, apparatuses, and / or systems based on needle-based devices with direct wing-type combinations of needle sheath and syringe barrel are disclosed, as well as safety mechanisms implemented therein.

[0006] In one aspect, the needle-based device includes a syringe barrel and a needle as its body. A portion of the needle is housed within and adhered to the syringe barrel so that the needle protrudes from the syringe barrel. The needle-based device also includes a needle sheath for protecting the entire length of the needle protruding from the syringe barrel, based on completely surrounding the entire protruding length of the needle in a first non-use state of the needle-based device. The syringe barrel includes wings located on the side of its outer wall. The wings extend perpendicular to the length of the syringe barrel to engage the needle sheath with the syringe barrel in the first non-use state of the needle-based device.

[0007] On the other hand, the needle-based device includes a syringe and a needle, which form the main body of the device. The syringe includes a needle port integrally formed with the syringe near its end, the needle port being concentric with the outer wall of the syringe within the inner cross-sectional width of the syringe. The needle port extends from the end of the syringe into the syringe within the inner cross-sectional width of the syringe, such that the needle port is completely surrounded within the inner cross-sectional width of the syringe. The outer boundary of the needle port along the length of the syringe is at most flush with the outer cross-sectional boundary of the syringe at its end.

[0008] A portion of the needle tip is housed within and adhered to the inner cross-sectional width of the needle port, allowing the needle tip to protrude from the syringe barrel. The needle-based device also includes a needle sheath for protecting the entire length of the needle tip protruding from the syringe barrel, based on completely surrounding the entire protruding length of the needle tip in a first non-use state of the needle-based device. The syringe barrel includes wings located on the side of its outer wall. The wings extend perpendicular to the length of the syringe barrel to engage the needle sheath with the syringe barrel in the first non-use state of the needle-based device.

[0009] In another aspect, the needle-based device includes a syringe, a needle, and a needle sheath, which form the main body of the device. A portion of the needle is housed within and adhered to the syringe so that the needle protrudes from the syringe. The needle sheath protects the entire protruding length of the needle from the syringe by completely surrounding it in a first non-use state of the device. The needle-based device also includes a latch with a first end. The first end is integral with the needle sheath, or is external to the needle sheath and then attached to it. The length of the latch extends entirely outside the needle sheath.

[0010] In the first non-use state of the needle-based device, the needle sheath is locked with a latch as follows: the latch includes a hook at its second end that passes through a groove formed on the needle sheath and locks onto the top of the syringe barrel, with the needle protruding from the top of the syringe barrel, such that in the locked state of the needle sheath, the length of the latch, which is completely outside the needle sheath, is parallel to the length of the needle sheath and the entire protruding length of the needle, and the hook is perpendicular to the length of the needle sheath, the length of the latch, and the entire protruding length of the needle.

[0011] The syringe includes wings located on the side of its outer wall. The wings extend perpendicular to the length of the syringe to engage a needle sheath with the syringe in a first non-use state of the needle-based device.

[0012] Other features will be apparent from the accompanying drawings and the detailed description below. Attached Figure Description

[0013] Embodiments of the present invention are shown by way of example and are not limited to the figures in the accompanying drawings, wherein the same reference numerals denote similar elements, and in the figures: Figure 1 This is a schematic diagram of a needle-based device according to one or more embodiments.

[0014] Figure 2 According to one or more embodiments Figure 1 Schematic diagrams of various configurations of needle hubs for needle-based devices.

[0015] Figure 3 It is according to one or more embodiments to attach a needle sleeve to Figure 1 A schematic diagram of a needle-based device surrounding its needle.

[0016] Figure 4 According to one or more embodiments Figure 1 A schematic diagram of a needle-based device, wherein the outer wall of the syringe of the needle-based device has wings on the side.

[0017] Figure 5 According to one or more embodiments Figure 1 A schematic diagram of a needle-based device, wherein a ring is present on the outer wall of the syringe.

[0018] Figure 6 According to one or more embodiments Figure 1 A schematic diagram of a needle-based device in a spring-based configuration of its needle sheath.

[0019] Figure 7 It is configured to at least partially cover according to one or more embodiments. Figure 1 and Figure 3 A schematic diagram of the outer cap of the needle sheath of a needle-based device.

[0020] Figure 8 This is a detailed description of one or more embodiments in Figure 1 A flowchart illustrating the procedures involved in implementing safety mechanisms in a needle-based device.

[0021] Figure 9 yes Figure 6 and Figure 7A schematic diagram of a spring-based embodiment, wherein an outer cap, a needle hub, and a needle sleeve are shown as modular elements.

[0022] Figure 10 yes Figure 6 A schematic diagram of the needle sleeve retraction in a spring-based embodiment.

[0023] Figure 11 It is based on Figure 6 and Figure 7 The diagram shows a locking mechanism of a needle-based device according to an embodiment, but it is a variation of the locking mechanism.

[0024] Figure 12 Is Figure 6 A schematic diagram of the external latch used in a needle-based device.

[0025] Figure 13 It has a relatively long needle hub. Figure 6 A schematic diagram of the safety mechanism of a needle-based device.

[0026] Figure 14 It is based on one or more embodiments and Figures 1 to 13 Schematic diagrams and explanatory figures of syringes similar to those of needle-based devices.

[0027] Figure 15 According to one or more embodiments Figure 14 syringe instead Figures 1 to 13 syringe and Figures 1 to 13 Schematic diagrams and explanatory figures of needle-based devices similar to those shown.

[0028] Figure 16 It is based on one or more embodiments and Figure 6 A spring-like spring surrounds the needle when it is not in use, similar to the spring in the needle-based device. Figure 15 Schematic diagram and explanatory diagram of a needle-based device.

[0029] Figure 17 It is according to one or more embodiments having Figure 7 The locking mechanism and outer cap of the needle-based device Figure 15 and Figure 16 Schematic diagram and explanatory diagram of a needle-based device.

[0030] Figure 18 It is according to one or more embodiments having Figure 11 The locking mechanism based on a needle tip. Figure 15 and Figure 16 Schematic diagram and explanatory diagram of a needle-based device.

[0031] Figure 19It is based on one or more embodiments and Figure 12 Similar embodiments have an external locking mechanism and a corresponding groove on its needle sheath. Figure 15 and Figure 16 Schematic diagram and explanatory diagram of a needle-based device.

[0032] Other features of this embodiment will become apparent from the accompanying drawings and the following detailed description. Detailed Implementation

[0033] The exemplary embodiments described below can be used to provide a needle-based device based on a direct wing-type combination of its needle sheath and syringe barrel, and methods, systems, and / or apparatuses for implementing safety mechanisms therein. Although this embodiment has been described with reference to specific exemplary embodiments, it will be apparent that various modifications and changes can be made to these embodiments without departing from the broader spirit and scope of the various embodiments.

[0034] Figure 1 A needle-based device 100 according to one or more embodiments is illustrated. In one or more embodiments, the needle-based device 100 may be a syringe, a hypodermic needle, a pen injector, a fluid (e.g., blood) collection device, and / or a fluid injector / extractor. It should be noted that the needle-based device 100 can be used not only for medical applications but also for biological and / or chemical applications. For example, the needle-based device 100 can be used to extract a desired amount of solvent / fluid from a vial / bottle. All reasonable applications are within the scope of the exemplary embodiments discussed herein.

[0035] In one or more embodiments, the needle-based device 100 may include a plunger 102 configured to insert into and remove from a syringe 104. In one example embodiment, the syringe 104 may be cylindrical and the plunger 102 may be suitably designed (e.g., also cylindrical) to enable sliding movement within and out of the syringe 104. In another example embodiment, the syringe 104 may be shaped as a square prism or a rectangular prism and the plunger 102 may be suitably shaped to enable the aforementioned sliding movement. All possible shapes and configurations of the syringe 104 and the plunger 102 that enable the plunger 102 to slide within and out of the syringe 104 are within the scope of the exemplary embodiments discussed herein.

[0036] In one or more embodiments, the base 106 of the plunger 102 allows a user 150 to press the plunger 102 into the syringe 104 using the thumb of their hand 152; the base 106 also allows the user 150 to pull the plunger 102 out of the syringe 104 using the thumb and / or other fingers of their hand 152. In one or more embodiments, the user 150 may be able to stabilize the needle-based device 100 using other fingers of their hand 152 (e.g., index and middle fingers) and (optionally) the palm of their hand 152 while pressing the plunger 102 into the syringe 104 using their thumb; the user 150 may also hold the needle-based device 100 with their other hand (e.g., hand 154) and pull the plunger 102 out of the syringe 104 using the thumb and / or other fingers of their hand 152. The use of the plunger 102 and the syringe 104 is well known to those skilled in the art regarding needle-based devices; therefore, for convenience, brevity, and clarity, a detailed discussion thereof is omitted.

[0037] It should be noted that in all operating states of the needle-based device 100, at least a portion of the plunger 102 (e.g., at least the base 106) may be outside the syringe barrel 104. It should also be noted that in all operating states of the needle-based device 100, at least a portion of the plunger 102 may be inside the syringe barrel 104. For example, the end of the plunger 102 furthest from its end including the base 106 may be the plunger head 108. In one or more embodiments, the plunger head 108 may be inside the syringe barrel 104 in all operating states of the needle-based device 100. In one or more embodiments, such as Figure 1 As shown, the cross-sectional diameter of the plunger head 108 can be smaller than that of the syringe 104, and the cross-sectional diameter of the base 106 can be larger than that of the syringe 104. This design is crucial for enabling the plunger 102 to move within the syringe 104 to perform functions associated with the needle-based device 100. Without the base 106, the position of the plunger head 108 within the syringe 104 may not be ideally controlled. Without the plunger head 108, the plunger 102 may fall out of the syringe 104 in a vertical position from the needle-based device 100 (with the base 106 at the bottom of the needle-based device 100). Furthermore, a portion of the syringe 104 between the plunger head 108 and the end 110 of the syringe 104 furthest from the base 106 may include fluid drawn from a vial / bottle by the needle-based device 100. Without the plunger head 108, this portion may not be able to retain the fluid.

[0038] Figure 1A needle hub 112 according to one or more embodiments is also shown. In one or more embodiments, the end 114 of the needle 116 may be inserted into the needle hub 112 (e.g., a needle hub) such that the needle 116 protrudes from the needle hub 112. In one or more embodiments, the needle 116 may include a hollow (e.g., cylindrical) bore along its length. In one or more embodiments, another end 118 of the needle 116 may be beveled. In one or more embodiments, the end 118 of the needle 116 may be configured to first contact the vial / bottle during fluid extraction or first contact the patient's arm during fluid injection. In one or more embodiments, the needle hub 112 may be directly coupled to the syringe 104 via the end 110 furthest from the base 106 of the syringe 104. Thus, in embodiments where the syringe 104 and plunger 102 together form a syringe, the needle hub 112, and consequently the needle 116, may be attached to the syringe.

[0039] Figure 2 Various configurations of the needle holder 112 according to one or more embodiments are shown. In a first configuration, when the needle holder 112 is attached to the syringe 104, the needle holder 112 may have wings 202 on each of its sides in a direction substantially perpendicular to the length of the syringe 104. 1,2 The portion 204 of the needle holder 112 without the wings can be configured to be directly coupled to (e.g., based on a threaded mechanism) the needle barrel 104. In the first configuration, the wings 202... 1-2 It can have a uniform width. In the second configuration, similarly, when the needle hub 112 is attached to the syringe 104, the needle hub 112 can have wings 212 on each of its sides in a direction generally perpendicular (or perpendicular to) the length of the syringe 104. 1,2 Similarly, in the second configuration, the portion 214 of the needle holder 112 without the wings can be configured to be directly coupled to (e.g., based on a threaded mechanism) the needle barrel 104. However, unlike the first configuration, the wings 212... 1-2 It can have only a partially uniform width, and then gradually decrease to a reduced width (or no width).

[0040] Figure 3A needle sheath 302 is illustrated incorporating a needle-based device 100 to surround its needle tip 116, according to one or more embodiments. Here, in one or more embodiments, the needle sheath 302 may be cylindrical or shaped as a rectangular prism / square prism, depending on the design of the needle hub 112 and / or syringe barrel 104. Additionally, in one or more embodiments, the needle sheath 302 may be hollow to enclose the protruding needle tip 116. In one or more embodiments, a connector 306 may be provided on the outer wall 304 of the syringe barrel 104 near the end 110, allowing the end 308 of the needle sheath 302 to snap onto the connector 306 while completely enclosing the protruding needle tip 116. In one or more embodiments, the inner cross-sectional diameter of the needle sheath 302 may be larger than the outer cross-sectional diameter of the needle hub 112 and the outer cross-sectional diameter of the syringe barrel 104, allowing the needle sheath 302 to slide on the needle hub 112 and the syringe barrel 104.

[0041] In one or more embodiments, the needle sheath 302 may first receive the protruding needle 116 on the needle hub 112 via its end 308. In one or more embodiments, the needle sheath 302 may then slide over the needle hub 112 until the end 308 snaps onto the connector 306 on the outer wall 304 of the syringe barrel 104. With the needle sheath 302 completely surrounding the protruding needle 116, the other end of the needle sheath 302 (e.g., end 310) may completely surround the end 118 of the needle 116. Figure 3 The needle sheath 302 is shown to be transparent (e.g., the needle sheath 302 may be made of plastic, glass, etc.). However, it should be noted that in some embodiments, the needle sheath 302 may be translucent or opaque. Here, the outer wall of the needle sheath 302 may include a cutout (not shown) that exposes the needle tip 116 while it remains protected by the needle sheath 302. All reasonable variations are within the scope of the exemplary embodiments discussed herein.

[0042] In one or more embodiments, via the wing 202 on the needle holder 112 1-2 This can facilitate the sliding of the needle sleeve 302 on the needle holder 112. Optionally, for the above purpose, a groove 312 can be provided on the inner wall 314 of the needle sleeve 302. 1-2 In one or more embodiments, in wing 202 1-2 Relative to groove 312 1-2 During the relative sliding, the wing 202 of the needle seat 112 1-2 It can be accommodated in groove 312 1-2 Inside. Despite Figure 3 Groove 312 1-2 The diagram shows a cut through the inner wall 314 of the needle sleeve 302, extending into its entire thickness. However, it should be noted that in one or more alternative embodiments, the groove 312... 1-2The needle sleeve 302 may not completely penetrate the inner wall 314 of the needle sleeve 302. In one or more embodiments, the needle sleeve 302 may slide until it is received within the connector 306. In one or more embodiments, the connector 306 may be formed with recesses 318 respectively. 1-2 Paired flexible sheets 316 1-2 It is configured to house the end 308 of the needle sheath 302 therein.

[0043] Therefore, in one or more embodiments, the user 150 may cover the needle 116 with the needle sheath 302 for temporary protection (e.g., for delivery to the patient site). In one or more embodiments, the needle sheath 302 may also be used to cover the needle 116 after use. In one or more embodiments, covering the needle 116 with the needle sheath 302 not only protects the needle 116 but also prevents undesirable accidents due to unwanted contact with the needle. In one or more embodiments, in order to enable the injection of fluid (e.g., medication) into the patient, the needle 116 may be exposed by further pushing the needle sheath 302 downward. In one or more embodiments, because the connector 306 may be flexible, the user 150 may be able to apply sufficient downward pressure to allow the end 308 of the needle sheath 302 to disengage from the recess 318 of the connector 306. 1-2 The needle 116 is ejected from the end 310 of the needle sheath 302 and slides further down along the syringe barrel 104. In one or more embodiments, as the needle sheath 302 slides further down along the syringe barrel 104, the needle tip 116 is ejected from the end 310 of the needle sheath 302, thus exposing the needle tip 116.

[0044] In one or more embodiments, when the user 150 pulls the plunger 102 outward from the syringe barrel 104, presses the needle sheath 302 against the cap of the vial or bottle, and pushes the syringe barrel 104 inward toward the vial or bottle, the needle sheath 302 can indirectly move further downward along the syringe barrel 104. In one or more embodiments, this allows the end 308 of the needle sheath 302 to exit from the groove 318 of the connector 306. 1-2 The needle 116 is exposed by sliding further down the syringe 104. In one or more embodiments, the user 150 can hold the needle sheath 302 to keep the needle 116 exposed for injecting fluid (e.g., medication) into or from a patient. In one or more embodiments, once the task is complete, the user 150 can apply force to the needle sheath 302 in the opposite direction to restore the needle 116 to its original state where it is completely surrounded by the needle sheath 302.

[0045] Therefore, in one or more embodiments, the needle-based device 100 may be provided with a needle sheath 302, which is configured to protect the needle 116 when the needle-based device 100 is not in use (e.g., storage, transport, after fluid injection, after fluid collection) and is retractable to expose the needle 116 for use (e.g., fluid injection, fluid collection). It should be noted that although... Figure 2 and Figure 3 The wing 202 on the side of the needle holder 112 is shown. 1-2 212 1-2 However, in one or more alternative embodiments, the wings may be present on the side of the syringe 104. Here, in one or more embodiments, the needle hub 112 may be smaller and flatter. Furthermore, it should be noted that the needle sheath 302 is not required to be coupled to the syringe 104 solely via the connector 306. In some embodiments, the needle sheath 302 may be mounted only on an element similar to the needle hub 112. In this case, the element may surround the needle hub 112, and the needle sheath 302 may be indirectly coupled to the syringe 104 by being coupled to that element. In some cases, the needle hub 112 may also be interpreted as a mounting base for the needle sheath 302 (e.g., based on an element surrounding the needle hub 112).

[0046] Figure 4 A needle-based device 100 according to one or more embodiments is shown, wherein a wing 402 is provided on the side of the outer wall 304 near the end 110 of the syringe 104. 1-2 Here, in one or more embodiments, the needle sleeve 302 may be located at the wing 402. 1-2 The needle sleeve 302 slides upward to lock onto the connector 306 on the outer wall 304, thereby covering the needle tip 116. In one or more embodiments, the needle sleeve 302 can be pushed further downward along the syringe barrel 104 to expose / remove the needle tip 116 based on the pressure applied to the needle sleeve 302, causing the tip 308 to eject from the connector 306. Similarly, in one or more embodiments, the needle sleeve 302 can be pulled back to a position where the needle sleeve 302 completely surrounds the protruding needle tip 116.

[0047] It should be noted that, although Figure 4 Wing 402 is shown 1-2 The configuration is similar to Figure 2 The first configuration in the needle holder 112, but the wing 402 1-2 The configuration can also be similar to Figure 2 The second configuration in the needle holder 112. Furthermore, all reasonable variations that achieve relative movement between the needle sheath 302 and the needle holder 112 / syringe 104 are within the scope of the exemplary embodiments discussed herein. Figure 4 In the middle, the needle seat 112, because it has no wings, can be compared with... Figure 2 and Figure 3 The embodiments are even smaller.

[0048] Return to reference Figure 3 It should be noted that the wing part 202 1-2 The configuration is also unrestricted. Wing 212 1-2 It can be located on the side of the needle seat 112, instead of the wing 202. 1-2 Furthermore, as discussed above, groove 312 1-2 It may not completely penetrate the inner wall 314 of the needle sheath 302. In this embodiment, the wing 212 1-2 Can be accommodated in groove 312 1-2 It can slide relative to itself. Here, wing 212 1-2 The tapered shape allows the needle sheath 302 to lock onto the needle hub 112 / syringe 104 without requiring the connector 306. Similarly, as discussed above, the needle sheath 302 can be pushed down to expose / reveal the needle tip 116. The needle sheath 302 can then be manually returned to its initial position where it fully surrounds the protruding needle tip 116.

[0049] Figure 5 A needle-based device 100 according to one or more embodiments is shown, wherein a ring 502 is provided on the outer wall 304 near the end 110 of the syringe 104. Here, the needle hub 112 may have a... Figure 2 and Figure 3 The same configuration may be used; alternatively, the needle hub 112 may be smaller and have no wings. In one embodiment, the ring 502 (e.g., having a uniform thickness) may protrude from the outer wall 304 of the syringe barrel 104; furthermore, the underside of the ring 502 may have a groove 504 complementary to the protrusion 506 on the end 308 of the needle sheath 302. Similarly, the needle sheath 302 may initially receive the needle 116 on the needle hub 112 through its end 308. The needle sheath 302 may move downward toward the syringe barrel 104 such that, after a certain point, the protrusion 506 of the needle sheath 302 locks into the groove 504 of the ring 502. In this state, the needle sheath 302 can completely enclose the protruding needle 116 therein.

[0050] In one or more embodiments, the ring 502 may be made of a flexible material. Furthermore, in one or more embodiments, while the ring 502 may change shape due to its flexibility, it will not change its position along the syringe barrel 104. In one or more embodiments, appropriate downward pressure (e.g., by the user 150) may cause the protrusion 506 to pop out of the recess 504 and cause the needle sheath 302 to move further downward along the syringe barrel 104. In one or more embodiments, this may expose / uncover the needle 116 for use with a patient (e.g., to draw blood, inject fluid, prick a finger) or for use with a vial / bottle (e.g., to extract liquid). In one or more embodiments, after use of the needle 116, upward pressure may be applied to allow the protrusion 506 to re-lock into the recess 504, thereby allowing the needle sheath 302 to once again completely surround the needle 116.

[0051] Figure 5 The embodiment of the ring (e.g., ring 502) is merely an exemplary embodiment. Other embodiments involving a ring that facilitates covering and exposing the needle tip 116 are also within the scope of the exemplary embodiments discussed herein. In one or more embodiments, the wing (202) on the needle holder 112 1-2 212 1-2 This can further assist in locking / unlocking / relocking the needle sleeve 302 in / from the appropriate position. All reasonable variations are within the scope of the exemplary embodiments discussed herein.

[0052] Figure 6 A needle-based device 100 with a spring-based configuration of a needle sheath 302 according to one or more embodiments is shown. Here, in one or more embodiments, a wing 212 is provided. 1-2 The needle hub 112 can be directly inserted into the syringe 104 through the end 110 furthest from the base 106. In one example embodiment, the syringe 104 may have a groove (not shown) on its inner wall near the end 110, to which the needle hub 112 can be screwed. Other forms of incorporating the needle hub 112 into the syringe 104 are also within the scope of the exemplary embodiments discussed herein. In one or more embodiments, the syringe 104 may have a ring 602 (e.g., similar to ring 502, but structurally different; ring 602 may be made of a flexible material) formed on its outer wall 304 near the end 110. In some embodiments, ring 602 may be integrally formed with the syringe 104, while in other embodiments, ring 602 may be a separate element from the syringe 104.

[0053] In one or more embodiments, a spring 604 may be provided on the needle holder 112 such that the spring 604 surrounds the protruding needle 116 along its entire length. In one or more embodiments, the end 308 of the needle sheath 302 may press against the ring 602 when the spring 604 surrounding the needle 116 is received within the needle sheath 302 via the end 308 of the needle sheath 302 and the needle sheath 302 moves downward toward the syringe barrel 104. In one or more embodiments, further pressure (e.g., by the hand 152 of the user 150) may press the ring 602 and push the ring 602 into the end 308 for reception within the needle sheath 302. In one or more embodiments, in this state, the needle sheath 302 may completely surround the entire length of both the protruding needle 116 and the spring 604.

[0054] In one or more embodiments, the needle sheath 302 can precisely cover the protruding needle tip 116 and the spring 602 when no further external pressure is applied. In one or more embodiments, although the ring 602 may not lock the needle sheath 302 in one position, it can prevent the needle sheath 302 from falling outward when the needle-based device 100 is flipped, because the inner diameter of the cross-section of the ring 602 may be larger than the inner diameter of the cross-section of the end 308. In one or more embodiments, the needle sheath 302 may be hollow. Furthermore, in one or more embodiments, the inner diameter of the cross-section of the end 310 of the needle sheath 302 furthest from the end 308 may be smaller than the cross-sectional diameter of the spring 604. Therefore, in one or more embodiments, when the needle-based device 100 is held in an upright position, the spring 604 can prevent the needle sheath 302 from falling downward.

[0055] In one or more embodiments, if the spring 604 is not present, the needle sheath 302 may slide and fall downwards; alternatively or additionally, as discussed above, the downward fall of the needle sheath 302 can be prevented based on elements mounted on the needle holder 112. However, in one or more embodiments, when the user 150 applies further downward pressure toward the syringe barrel 104 or by pressing the end 310 of the needle sheath 302 against a surface that generates a normal reaction force in the downward direction (e.g., the patient's arm, the cap of a vial / bottle), the needle sheath 302 moves downwards along the syringe barrel 104, thereby also compressing the spring 604 in the same direction to expose / uncover the needle 116. In one or more embodiments, the exposed / uncovered needle 116 can then be suitably used (e.g., for injecting fluid into a patient, for piercing a patient's finger / body part, for piercing the cap of a vial / bottle). After using the needle 116, the force along the compression direction of the spring 604 can be released (e.g., by removing the needle-based device 100 from the surface and the user 150 stopping applying pressure in the downward direction) so that the spring 604 returns to its uncompressed state; in the uncompressed state of the spring 604, the needle sheath 302 can once again completely surround the protruding needle 116 and the spring 604.

[0056] In other words, after the force applied immediately in the compression direction of the spring 604 is released, the needle-based device 100 can automatically return to a non-use state (e.g., the state where the needle sheath 302 completely surrounds the needle 116 and the spring 604) after its use, based on another force (e.g., a restoring force) automatically applied in the direction exactly opposite to the compression direction of the spring 604 provided by the decompression of the spring 604.

[0057] In the case of injecting fluid into a patient, the needle-based device 100 can first be placed against the cap of the vial / bottle from which the fluid is to be extracted. When the end 310 presses against the cap, the normal reaction force of the cap pushes the needle sheath 302 downward, thereby compressing the spring 604. The downward movement of the needle sheath 302 and the compression of the spring 604 expose the needle 116 that pierces the cap. The plunger 102 can also be pushed in by the user 150 pressing the base 106 upward toward the needle seat 112, so that the plunger head 108 contacts the needle seat 112. Now, pulling the plunger 102 back can create a gap between the needle seat 112 and the plunger head 108. The gap can form a low-pressure area, allowing fluid to flow in through the hollow needle 116 to fill the gap.

[0058] The desired amount of fluid can now be filled into the gap. The gap can be controlled based on graduations on the syringe 104 (e.g., shown as graduation 606). Once the desired amount of fluid is in the gap, the user 150 can remove the needle-based device 100 from the vial / bottle, thereby decompressing the spring 604 to return it to its initial shape. The user 150 can then press the end 310 of the needle sheath 302 against the patient's arm, compressing the spring 604 again as described above, and exposing the needle 116. The exposed needle 116 can pierce the patient's skin; pressing the base 106 can compress the volume of the gap, thereby creating a high-pressure area therein. Fluid can then be forced into the patient's body through the hollow needle 116.

[0059] Once the fluid has been injected into the patient, the needle-based device 100 can be removed from the patient's arm. This causes the spring 604 to decompress and the needle sheath 302 to return to its position where the needle sheath 302 completely surrounds the exposed needle 116 and the spring 604. The needle-based device 100 can also be used to pierce a patient's fingertip to extract blood or to extract another fluid from a bottle / vial; additionally, the needle-based device 100 can be used to extract venom from a mammalian body part. The details discussed above with respect to the accompanying drawings make the above uses apparent. All reasonable variations are within the scope of the exemplary embodiments discussed herein.

[0060] about Figure 6 It is evident that the needle sheath 302 can be retracted to expose the needle tip 116 and can be freely released to close the needle tip 116. Furthermore, the wing 212 on the needle hub 112... 1-2 This helps to securely connect the needle sheath 302 to the syringe barrel 104. It is conceivable that the wing 212 would not be present. 1-2 of Figure 6 Examples of implementations. In summary, Figure 6 The embodiments described can be used for two distinct modes of operation regarding the use of the needle-based device 100 (where the needle sheath 302 retracts to compress the spring 604 and exposes the needle 116). In one or more embodiments, a first distinct mode of operation using the needle-based device 100 may be extracting fluid from a vial / bottle or the body (e.g., arm) of a mammal (e.g., a human), and a second distinct mode of operation using the needle-based device 100 may be injecting the fluid into the body of a mammal or another mammal. Currently, there is no similar solution where the needle is both concealed and exposed for use during both fluid extraction and fluid injection. Figure 6 Another operating mode of the embodiment can be associated with the non-use state of the needle-based device 100, wherein the needle 116 is completely covered / surrounded by the spring 604 and the needle sleeve 302.

[0061] Figure 7 An outer cap 702, configured to at least partially cover a needle sheath 302 according to one or more embodiments, is shown. In one or more embodiments, the outer cap 702 may be made of a transparent (e.g., plastic, glass), translucent (e.g., rubber), or opaque material to cover slits and cutouts on the needle sheath 302. In one or more embodiments, a groove 706 may be provided in the outer surface 704 of the outer cap 702. Thus, in one or more embodiments, a latch 708 may be provided on the outer surface of the needle sheath 302. In one or more embodiments, the latch 708 of the needle sheath 302 may be configured to be received into the groove 706 on the outer cap 702 to lock the needle-based device 100 (e.g., in its non-use state).

[0062] In one or more embodiments, the use of an external lock can prevent the reuse of the needle-based device 100 or at least the needle 116 therein. Although Figure 7 The needle sheath 302 is shown as covering the needle tip 116 and the spring 604, but the concept associated with an external lock can also be applied. Figures 1 to 5 Examples of embodiments. In one or more embodiments, an external lock can prevent movement of the needle sheath 302, which in turn prevents the reuse of the needle-based device 100. Alternatively, the needle sheath 302 itself may include both a latch 708 and a recess 706. Here, locking can be accomplished using only the elements of the needle sheath 302. In another alternative embodiment, the latch 708 may be external to the needle sheath 302. For example, the latch 708 may be on the outer cap 702 and the recess 706 may be on the needle sheath 302. Here, the latch 708 of the outer cap 702 may be received within the recess 706 of the needle sheath 302.

[0063] In yet another alternative embodiment, the outer cap 702 may cover the latch 708 of the needle sheath 302 to prevent premature / accidental locking during transport or handling of the needle-based device 100. In one example embodiment, the outer cap 702 may be designed to resemble a pen cap. Other configurations of the outer cap 702 are within the scope of the exemplary embodiments herein.

[0064] Therefore, the exemplary embodiments discussed above provide a safety mechanism for the needle-based device 100. Manual shielding, available in general syringes, may require capping the needle after use. Capping and uncapping can cause needle pricks to the user. Furthermore, in general spring-based embodiments of syringes that allow the needle to retract, some space is reserved in the syringe barrel for the spring. This can result in loss of medication space. The automatic retraction of the needle sheath 302 in the exemplary embodiments discussed herein also allows for one-handed operation of the needle-based device 100. All reasonable variations are within the scope of the exemplary embodiments discussed herein.

[0065] It should be noted that the exemplary embodiments discussed above have been set within the context of a syringe with a syringe barrel 104 and a plunger 102 and a needle 116. However, the concepts associated with the exemplary embodiments discussed herein are applicable to embodiments where the needle hub 112 is integrated into the body of the needle-based device 100 (instead of the syringe barrel 104) and the needle 116 protrudes from the needle hub 112. In one or more embodiments, the needle sheath 302 may surround the protruding needle 116 in the operational state; the needle sheath 302 may retract to expose / uncover the needle 116. In one or more embodiments, as described above, the needle sheath 302 may also be protected by an outer cap 702. Regarding Figures 1 to 7 All reasonable variations and combinations of the exemplary embodiments discussed herein are within the scope of the exemplary embodiments discussed herein.

[0066] Figure 8 A flowchart detailing the operations involved in implementing a safety mechanism in a needle-based device (e.g., needle-based device 100) according to one or more embodiments is shown. In one or more embodiments, operation 802 may involve protecting the entire length of the needle (e.g., needle 116) of the needle-based device, which protrudes from a needle hub (e.g., needle hub 112) coupled to the body of the needle-based device (e.g., syringe 104), from the entire protruding length of the needle, based on a needle sheath (e.g., needle sheath 302) configured to completely surround the entire protruding length of the needle in a first non-use state of the needle-based device. In one or more embodiments, operation 804 may involve retracting the needle sheath toward the body of the needle-based device in a first direction to allow the needle to extend from the needle sheath, thereby placing the needle-based device in its second use state.

[0067] In one or more embodiments, operation 806 may involve, after the second use state, reverting the needle-based device back to its first non-use state based on a force applied in a second direction exactly opposite to the first direction. In one or more embodiments, operation 808 may then involve, in the first non-use state of the needle-based device, securely maintaining the entire protruding length of the needle surrounded by the needle sheath based on the engagement between the needle sheath and the body of the needle-based device.

[0068] Figure 9 It shows Figure 6 and Figure 7 A spring-based embodiment, wherein an outer cap 702, a needle holder 112, and a needle sleeve 302 are modular elements. In one or more embodiments, such as Figure 6 and Figure 9As clearly shown and as described above, the needle sleeve 302 can be mounted directly or, for example, via a connector (such as ring 602) onto the syringe 104 (the body of the needle-based device 100), such that the needle sleeve 302 surrounds both the spring 604 and the needle 116. (See reference...) Figure 6 The relative cross-sectional area / diameter of the needle hub 112, needle sheath 302, and ring 602 discussed herein can automatically protect the needle tip 116 and prevent accidental punctures caused by the needle tip 116. It should be noted that snaps (not shown) can be formed on the syringe 104 (or the body of the needle-based device 100) so that the needle sheath 302 can be directly attached thereto.

[0069] Figure 10 An illustration is provided according to one or more embodiments. Figure 6 In the spring-based embodiment, the needle sheath 302 retracts. As described above, once the user 150 applies downward pressure toward the syringe 104, or by pressing the end 310 of the needle sheath 302 against a surface (e.g., the patient's arm, the cap of a medicine bottle / bottle), the needle sheath 302 moves in the same downward direction, thereby compressing the spring 604, as... Figure 10 As shown. Figure 11 It shows according to Figure 6 and Figure 7 The locking mechanism 1100 of the needle-based device 100 in the embodiment is described, but as a variation of the locking mechanism 1100, here, in one or more embodiments, the locking mechanism 1100 may include a latch 1102 (similar to latch 708) located on the needle sheath 302 near the end 114 / top of the needle hub 112; however, here, as Figure 11 As shown, the latch 1102 may have a hook 1104 configured to engage between the coils 1106 of the spring 604 to contact the top of the needle holder 112 and to lock the needle sleeve 302 by hooking the hook teeth 1110 on the hook 1104 onto one or more lines of the spring 604; for the above purpose, the needle sleeve 302 may have a groove 1108 on its outer wall through which the hook 1104 and the hook teeth 1110 pass to lock into the coils 1106 of the spring 604 and the top of the needle holder 112. Figure 7 This increases the locking force compared to the locking force in the embodiment (where the latch 708 is combined with the outer cap 702).

[0070] As described above, other possible embodiments include a latch 708, which is a separate element that engages with the needle sleeve 302 or with both the needle sleeve 302 and the spring 604. Figure 12An external latch 1202 (e.g., part of a locking mechanism 1200) is shown, configured to engage with both a groove 1204 on the needle sleeve 302 (e.g., via a hook 1208 on the external latch 1202) and a coil 1106 of the spring 604 (e.g., via a hook 1206 including a hook tooth 1210 on the external latch 1202 via the groove 1108). Similarly, the background of embodiments of the external latch 1202 is similar to... Figure 6 Background of the embodiments. In one or more embodiments, the spring 604 discussed above may be a separate element or integrated with the needle hub 112 or needle sheath 302 discussed above. In one or more embodiments, the spring 604 may be a metal spring or a molded spring. In one or more embodiments, the needle sheath 302 in all embodiments, together with other elements (such as the needle hub 112 and the spring 604), may be sold as a safety mechanism different from a syringe or other form of needle-based device 100.

[0071] Figure 13 It shows Figure 6 The embodiment is described, but with a longer needle hub 112. Here, the needle hub 112 can be longer, allowing a ring 602 to be formed thereon instead of on the syringe 104. Therefore, the needle 116 with the needle hub 112 and needle sheath 302 can be sold as a separate safety mechanism 1300, distinct from the needle-based device 100. It should be noted that... Figure 3 Manual embodiments may also include locking mechanisms discussed herein (e.g., Figure 7 as well as Figure 11 and Figure 12 Those (due to) Figure 3 In this embodiment, spring 604 is absent, therefore the wire of spring 604 will not be hooked (it is easy to imagine). Figure 7 The embodiment does not have spring 604. All reasonable variations are within the scope of the exemplary embodiments discussed herein. Furthermore, it should be noted that the mechanisms for injecting fluid into and extracting fluid from a vial / bottle / mammal body are known to those skilled in the art, particularly with respect to needle-based device 100. Therefore, for convenience and clarity, a detailed discussion and description thereof is omitted.

[0072] The embodiments of the needle-based device 100 described above can be further modified to reduce the complexity of its component assembly, thereby making the needle-based device 100 not only cost-effective and / or cost-competitive in the market, but also providing users (e.g., user 150) with increased safety value through the needle-based device 100. It should be noted that the plunger 102, as applicable to all embodiments discussed herein, may be provided with elements in the form of stop / washers (not shown; e.g., attached to the plunger head 108) (e.g., rubber-based, rubber black) to prevent leakage of fluid (e.g., medication) stored in the syringe 104 when the plunger 102 is pushed into or pulled out of the area within the syringe 104.

[0073] Figure 14 A diagram illustrating a similarity to one or more embodiments is shown. Figures 1 to 13 The syringe 1400 of the embodiment of syringe 104. Here, in one or more embodiments, a portion of syringe 1400 near its end 1402 may include a needle port 1406 within an inner cross-sectional width 1404 (e.g., diameter) of syringe 1400. In one or more embodiments, needle port 1406 may be integral with syringe 1400 and may be concentric with an outer wall (e.g., outer wall 1502, as discussed below) of syringe 1400. In one or more embodiments, needle port 1406 may extend from end 1402 into syringe 1400 within inner cross-sectional width 1404. In one or more embodiments, inner cross-sectional width 1408 (e.g., diameter) of needle port 1406 may be significantly smaller than the inner cross-sectional width 1404 of syringe 1400. In one or more embodiments, a portion of needle 116 may pass through needle port 1406 to attach to syringe 1400. In other words, in one or more embodiments, this portion of the needle 116 can be inserted into and attached thereto in the needle port 1406 to attach the needle 116 to the syringe 1400. Clearly, in one or more embodiments, the depth of the needle port 1406 can be significantly less than the length of the needle 116.

[0074] It should be noted that, in order to accommodate different shapes of syringes 1400 (syringe 104) and / or needles 116, such as cylinders and rectangular prisms, the term "cross-sectional width" has been used herein instead of "cross-sectional diameter." All possible shapes are within the scope of the exemplary embodiments discussed herein. Furthermore, it should be noted that the needle port 1406 extends from the end 1402 into the syringe 1400 within the inner cross-sectional width 1404 of the syringe 1400 such that the needle port 1406 is completely enclosed within the inner cross-sectional width 1404 of the syringe 1400; here, the outer boundary of the needle port 1406 along the length of the syringe 1400 may at most be flush with (or at the same level as) the outer cross-sectional boundary of the syringe 1400 at the end 1402. In other words, the needle port 1406 may be confined by the end 1402 and may not protrude from the end 1402; ideally, the needle port 1406 may be flush with the outer cross-sectional boundary of the syringe 1400 at the end 1402.

[0075] In one or more embodiments, the attachment of the needle 116 to the syringe 1400 can be accomplished by bonding the needle 116 to the syringe 1400 within the inner cross-sectional width 1408 of the needle port 1406. Figure 14 A front view of the attachment of the needle 116 to the syringe 1400 according to one or more embodiments is also shown. In one or more embodiments, the inner cross-sectional width 1408 of the needle port 1406 may be only slightly larger than the inner cross-sectional width of the needle 116, so that the needle 116 can be stably positioned therein. Here, in one or more embodiments, the needle 116 may be bonded within the cross-sectional width 1408 of the needle port 1406 to ensure its stable positioning. In one example embodiment, the needle 116 may be bonded to the cross-sectional width 1408 of the needle port 1406 of the syringe 1400 using an ultraviolet (UV) resin. For example, the needle 116 may be immersed in UV resin and inserted into the needle port 1406 of the syringe 1400 mold, and then cured (e.g., using a UV lamp).

[0076] All other possible methods for stably connecting the needle 116 within the needle port 1406 (e.g., using epoxy resin) are within the scope of the exemplary embodiments discussed herein. In one or more embodiments, instability of the needle 116 mounted on the conical structure / syringe cone can be avoided by attaching the needle 116 to the aforementioned syringe 1400. Figure 15A needle-based device 1500, similar to the needle-based device 100, is shown, replacing the syringe 104 with a syringe 1400 according to one or more embodiments. In one or more embodiments, attaching the needle 116 directly to the syringe 1400 (instead of the needle hub 112 as in the needle-based device 100) eliminates the need for the needle hub 112 in the needle-based device 1500. In one or more embodiments, the syringe 1400 can therefore accommodate wings (202) on its outer wall 1502. 1-2 212 1-2 402 1-2 Instead of providing wings (202) on the needle hub 112 in the needle-based device 100. 1-2 212 1-2 402 1-2 This is already about Figure 4 The needle-based device 100 was discussed.

[0077] Figure 15 The diagram illustrates an outer wall 1502 (similar to outer wall 304) of a syringe 1400 according to one or more embodiments, having a connector 1504 (similar to connector 306) such that the end 308 of the aforementioned needle sheath 302 can snap onto the connector 1504, while the needle sheath 302 completely surrounds the needle 116 (instead of the needle hub 112 of the needle-based device 100) protruding from the syringe 1400 of the needle-based device 1500. It should be noted that the difference between the needle-based device 100 and the needle-based device 1500 may simply be the absence of a needle hub 112, with the needle 116 directly attached to the syringe 1400 instead of a needle hub 112. As described above, in one or more embodiments, the absence of a needle hub 112 allows for the reception of wings (202) on the outer surface of the syringe 1400 (e.g., outer wall 1502). 1-2 212 1-2 402 1-2 Therefore, all the mechanisms described above for attaching the needle sheath 302 to the syringe barrel 104, for surrounding the needle tip 116 with the needle sheath 302, for the operation and attachment of the spring 604 of the needle-based device 100 / in the non-spring-based embodiment, for the latches (708, 1102, 1202), for hooking the spring 604 with the hooks (1104, 1206), and for the use and non-use states of the aforementioned needle-based device 100, along with each related discussion, can also be applied to the needle-based device 1500 with the syringe barrel 1400 discussed herein.

[0078] In one or more embodiments, the inner cross-sectional dimension of the needle sheath 302 may be larger than the outer cross-sectional dimension of the syringe barrel 1400, so that the needle sheath 302 can slide on the syringe barrel 1400. In one or more embodiments, the needle sheath 302 may first receive a protruding needle tip 116 on the syringe barrel 1400 through end 308. In one or more embodiments, the needle sheath 302 may then slide on the syringe barrel 1400 until end 308 engages with connector 1504 on the outer wall 1502 of the syringe barrel 1400. With the needle sheath 302 completely surrounding the protruding needle tip 116, the other end of the needle sheath 302 (e.g., end 310) may completely surround end 118 of the needle tip 116. Figure 3 A transparent needle sheath 302 is shown (e.g., the needle sheath 302 may be made of plastic, glass, etc.). However, it should be noted that in some embodiments, the needle sheath 302 may be translucent or opaque. Similarly, in one or more embodiments, the syringe 1400 may be transparent, translucent, or opaque.

[0079] In one or more embodiments, the outer wall of the needle sheath 302 may include a cut (not shown) that exposes the needle tip 116 while it is still protected by the needle sheath 302. All reasonable variations are within the scope of the exemplary embodiments discussed herein. In one or more embodiments, sliding of the needle sheath 302 on the syringe barrel 1400 may be achieved via a wing 202 now disposed on the outer wall 1502 of the syringe barrel 1400 instead of on the needle hub 112. 1-2 To promote. Similarly, similar to Figure 3 For the purposes described above, optionally, groove 312 1-2 It can be disposed on the inner wall 314 of the needle sheath 302. In one or more embodiments, on the wing 202 1-2 Relative to groove 312 1-2 During the relative sliding, the wing 202 of the syringe 1400 1-2 It can be accommodated in groove 312 1-2 Inside. Although Figure 15 Groove 312 is shown again. 1-2 The groove 312 cuts through the inner wall 314 of the needle sleeve 302, extending its entire thickness. However, it should be noted that in one or more alternative embodiments, the groove 312... 1-2 The needle sleeve 302 may not completely penetrate the inner wall 314 of the needle sleeve 302. In one or more embodiments, the needle sleeve 302 may slide until it is received within the connector 1504. In one or more embodiments, the connector 306 may be formed by recesses 318 respectively. 1-2 Paired flexible sheets 316 1-2 It is configured to house the end 308 of the needle sheath 302 therein.

[0080] It should be noted that, although Figure 4 A wing (e.g., wing 402) is shown on the side of the syringe 104. 1-2 ),but Figure 15 Additionally, it includes a needle 116 that is directly attached to the syringe 1400 as described above, without requiring a needle hub 112 for it. This is readily conceivable. Figure 5 An embodiment of the needle-based device 100 is applied to a needle-based device 1500 in which a syringe 1400 replaces a syringe 104. In one or more embodiments, a ring 502 may be disposed on the outer wall 1502 of the syringe 1400, and the needle 116 may be directly attached to the syringe 1400. The ring 502 protrudes from the outer wall 1502 of the syringe 1400, and a groove 504 on the underside of the ring 502 complements a protrusion 506 on the end 308 of the needle sheath 302, locking the protrusion 506 of the needle sheath 302 into the groove 504 of the ring 502 after the needle sheath 302 moves toward the syringe 1400, so that the needle sheath 302 can completely surround the protruding needle 116 therein, and regarding Figure 5 Other features / discussions can also be applied to the needle-based device 1500 discussed throughout this document.

[0081] Figure 16 A needle-based device 1500 according to one or more embodiments is shown, wherein the syringe 1400 has a spring 604 surrounding a needle 116 in a non-use state. Here, in one or more embodiments, the syringe 1400 may include a wing 212 on its outer wall 1502. 1-2 The operation and compression of spring 604 allow needle 116 to extend from needle sheath 302, and other ideas / discussions regarding all embodiments relating to the implementation of spring 604 in needle-based device 100 can also be applied to needle-based device 1500. For example, it should be noted that alternatives in such... Figure 6 In the first non-use state of the needle-based device 100 shown, the spring 604 is positioned on the needle holder 112 to additionally surround the entire protruding length of the needle 116, as shown in... Figure 16 In the first non-use state of the needle-based device 1500 shown, the spring 604 can be mounted on the syringe 1400.

[0082] Figure 17 The illustration shows the relationship between one or more embodiments and Figure 7 The needle-based device 1500, which has a locking buckle 708 and an outer cap 702, is in the same context as the needle-based device 100. Figure 18 A needle-based device 1500, having a latch 1102 on a needle sheath 302, is shown according to one or more embodiments, in the same context as the needle-based device 100. Similarly, Figure 19A needle-based device 1500 is shown, according to one or more embodiments, in the same context as the needle-based device 100, having an external latch 1202 and a corresponding groove 1204 on the needle sleeve 302.

[0083] because Figures 1 to 13 The difference between the embodiment of the needle-based device 100 and the embodiment of the needle-based device 1500 with a syringe 1400 in the following figures is only that the needle 116 is directly attached / bonded to the syringe 1400, and the wing (202) 1-2 212 1-2 402 1-2 The needle is located on the outer wall 1502 of the syringe 1400 rather than on the needle holder 112. Therefore, for convenience, clarity, brevity and to avoid repetition, detailed explanations related to the operation of the needle-based device 1500 are omitted. Figures 1 to 13 All functional and structural elements of the embodiment of the needle-based device 100, as well as their use and non-use states, are also applicable to the embodiment of the needle-based device 1500 in the following figures. All reasonable variations are within the scope of the exemplary embodiments discussed herein.

[0084] Therefore, refer to Figures 14 to 19 The exemplary embodiments discussed can eliminate the need for Figures 1 to 13 The need for a needle holder 112 in an embodiment of the needle-based device 100. In one or more embodiments, the needle 116 is directly attached to the syringe 1400 and a wing (202) is provided directly on the syringe 1400. 1-2 212 1-2 402 1-2 This allows the injection mold for the syringe 1400 to accommodate more components. This reduces the need for manufacturers of the syringe 1400 to source components such as the needle hub 112 from third-party suppliers. Furthermore, this reduces the efficiency involved in a one-stop manufacturing process and / or compared to... Figures 1 to 13 The reduced number of components in the needle-based device 100 can lower the cost of the needle-based device 1500. All reasonable variations are within the scope of the exemplary embodiments discussed herein.

[0085] Although this embodiment has been described with reference to specific example embodiments, it will be apparent that various modifications and changes can be made to these embodiments without departing from the broader spirit and scope of the various embodiments. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. A needle-based device, comprising: The syringe serves as the main body of the needle-based device; A needle, a portion of which is housed within the syringe and adhered to the syringe so that the needle protrudes from the syringe; as well as A needle sheath, used in the first non-use state of the needle-based device to protect the entire length of the needle protruding from the syringe by completely surrounding the entire protruding length of the needle. The syringe includes a wing located on the side of its outer wall, the wing extending perpendicular to the length of the syringe to engage the needle sheath with the syringe in the first non-use state of the needle-based device.

2. The needle-based device according to claim 1, wherein, The syringe includes a needle port integrally formed with the syringe near its end, the needle port being concentric with the outer wall of the syringe within the inner cross-sectional width of the syringe, and extending from the end of the syringe into the syringe within the inner cross-sectional width of the syringe such that the needle port is completely surrounded within the inner cross-sectional width of the syringe, and the outer boundary of the needle port along the length of the syringe is at most flush with the outer cross-sectional boundary of the syringe at the end of the syringe. The portion of the needle is housed within the inner cross-sectional width of the needle port and bonded thereto.

3. The needle-based device according to claim 1, wherein, The needle sheath retracts toward the syringe barrel in a first direction, and a first force is applied in the first direction to extend the needle tip from the needle sheath, thereby preparing the needle-based device for its second use state. After the needle-based device enters the second use state, it returns to the first non-use state by applying a second force in a second direction completely opposite to the first direction. Based on the engagement of the needle sheath with the syringe via the wing, the needle is securely held in the first non-use state of the needle-based device, with the needle sheath surrounding the entire protruding length of the needle.

4. The needle-based device of claim 1 further includes a latch having a first end integrally formed with the needle sheath, or external to the needle sheath and then coupled to the needle sheath, and the length of the latch being entirely outside the needle sheath. in, In the first non-use state of the needle-based device, the needle sheath is locked to the latch based on the following: The latch includes a hook at its second end, the hook passing through a groove formed on the needle sheath and locking onto the top of the syringe, the needle protruding from the top of the syringe, such that in the locked state of the needle sheath: The length of the latch, which extends entirely outside the needle sheath, is parallel to the length of the needle sheath and the entire protruding length of the needle tip. The hook is perpendicular to the length of the needle sleeve, the length of the buckle, and the entire protruding length of the needle tip.

5. The needle-based device of claim 1, further comprising a spring disposed on the syringe barrel to additionally surround the entire protruding length of the needle in the first non-use state of the needle-based device. in, In the first non-use state of the needle-based device, the needle sheath surrounds not only the entire protruding length of the needle but also the entire length of the spring.

6. The needle-based device according to claim 5, wherein, The needle sheath retracts toward the syringe barrel in a first direction and compresses the spring, which applies a first force in the first direction to extend the needle tip from the needle sheath, thereby preparing the needle-based device for its second use state. After the second use state, the needle-based device immediately and automatically switches back to the first non-use state of the needle-based device according to the automatic decompression of the spring, wherein the automatic decompression of the spring provides a second force in a second direction completely opposite to the first direction.

7. The needle-based device according to claim 2, wherein, The portion of the needle is bonded to the inner cross-sectional width of the needle port using ultraviolet light, i.e., UV resin.

8. A needle-based device, comprising: A syringe, as the main body of the needle-based device, includes a needle port integrally formed with the syringe near its end, the needle port being concentric with the outer wall of the syringe within the inner cross-sectional width of the syringe, and the needle port extending from the end of the syringe into the syringe within the inner cross-sectional width of the syringe such that the needle port is completely surrounded within the inner cross-sectional width of the syringe, and the outer boundary of the needle port along the length of the syringe is at most flush with the outer cross-sectional boundary of the syringe at the end of the syringe; A needle, a portion of which is housed within the inner cross-sectional width of the needle port and adhered to the needle port, such that the needle protrudes from the syringe. as well as A needle sheath, used in a first non-use state of the needle-based device, to protect the entire length of the needle protruding from the syringe by completely surrounding the entire protruding length of the needle. The syringe includes a wing located on the side of its outer wall, the wing extending perpendicular to the length of the syringe to engage the needle sheath with the syringe in the first non-use state of the needle-based device.

9. The needle-based device according to claim 8, wherein, The needle sheath retracts toward the syringe barrel in a first direction, and a first force is applied in the first direction to extend the needle tip from the needle sheath, thereby preparing the needle-based device for its second use state. After the needle-based device enters the second use state, it returns to the first non-use state by applying a second force in a second direction completely opposite to the first direction. Based on the engagement of the needle sheath with the syringe via the wing, the needle is securely held in the first non-use state of the needle-based device, with the needle sheath surrounding the entire protruding length of the needle.

10. The needle-based device of claim 8, further comprising a latch having a first end integrally formed with the needle sheath, or external to the needle sheath and then coupled to the needle sheath, and the length of the latch being entirely outside the needle sheath. in, In the first non-use state of the needle-based device, the needle sheath is locked to the latch based on the following: The latch includes a hook at its second end, the hook passing through a groove formed on the needle sheath and locking onto the top of the syringe, the needle protruding from the top of the syringe, such that in the locked state of the needle sheath: The length of the latch, which extends entirely outside the needle sheath, is parallel to the length of the needle sheath and the entire protruding length of the needle tip. The hook is perpendicular to the length of the needle sleeve, the length of the buckle, and the entire protruding length of the needle tip.

11. The needle-based device of claim 8, further comprising a spring disposed on the syringe barrel to additionally surround the entire protruding length of the needle in the first non-use state of the needle-based device. in, In the first non-use state of the needle-based device, the needle sheath surrounds not only the entire protruding length of the needle but also the entire length of the spring.

12. The needle-based device according to claim 11, wherein, The needle sheath retracts toward the syringe barrel in a first direction and compresses the spring, which applies a first force in the first direction to extend the needle tip from the needle sheath, thereby preparing the needle-based device for its second use state. After the needle-based device enters the second use state, it immediately and automatically returns to the first non-use state of the needle-based device according to the automatic decompression of the spring, wherein the automatic decompression of the spring provides a second force in a second direction completely opposite to the first direction.

13. The needle-based device according to claim 8, wherein, The portion of the needle is bonded to the inner cross-sectional width of the needle port using UV resin.

14. A needle-based device, comprising: The syringe serves as the main body of the needle-based device; A needle, a portion of which is housed within and adhered to the syringe barrel, such that the needle protrudes from the syringe barrel; A needle sheath, the needle sheath being used to protect the entire length of the needle protruding from the syringe based on completely surrounding the entire protruding length of the needle in a first non-use state of the needle-based device; as well as A locking buckle has a first end that is integrally formed with or external to the needle sheath and then attached to it, and the length of the locking buckle is entirely outside the needle sheath. In the first non-use state of the needle-based device, the needle sheath is locked to the latch based on the following: The latch includes a hook at its second end, the hook passing through a groove formed on the needle sheath and locking onto the top of the syringe, the needle protruding from the top of the syringe, such that in the locked state of the needle sheath: The length of the latch, which extends entirely outside the needle sheath, is parallel to the length of the needle sheath and the entire protruding length of the needle tip. The hook is perpendicular to the length of the needle sleeve, the length of the buckle, and the entire protruding length of the needle tip, and The syringe includes a wing located on the side of its outer wall, the wing extending perpendicular to the length of the syringe to engage the needle sheath with the syringe in the first non-use state of the needle-based device.

15. The needle-based device according to claim 14, wherein, The syringe includes a needle port integrally formed with the syringe near its end, the needle port being concentric with the outer wall of the syringe within the inner cross-sectional width of the syringe, and extending from the end of the syringe into the syringe within the inner cross-sectional width of the syringe such that the needle port is completely surrounded within the inner cross-sectional width of the syringe, and the outer boundary of the needle port along the length of the syringe is at most flush with the outer cross-sectional boundary of the syringe at the end of the syringe. The portion of the needle is housed within the inner cross-sectional width of the needle port and bonded thereto.

16. The needle-based device according to claim 14, wherein, The needle sheath retracts toward the syringe in a first direction to apply a first force in that direction, thereby causing the needle to extend from the needle sheath and preparing the needle-based device for its second use state. After the needle-based device enters the second use state, it returns to the first non-use state by applying a second force in a second direction completely opposite to the first direction. Based on the engagement of the needle sheath with the syringe via the wing, the needle is securely held in the first non-use state of the needle-based device, with the needle sheath surrounding the entire protruding length of the needle.

17. The needle-based device of claim 14, further comprising a spring disposed on the syringe barrel to additionally surround the entire protruding length of the needle in the first non-use state of the needle-based device. in, In the first non-use state of the needle-based device, the needle sheath surrounds not only the entire protruding length of the needle but also the entire length of the spring.

18. The needle-based device according to claim 17, wherein, The needle sheath retracts toward the syringe barrel in a first direction and compresses the spring, which applies a first force in the first direction to extend the needle tip from the needle sheath, thereby preparing the needle-based device for its second use state. After the needle-based device enters the second use state, it immediately and automatically returns to the first non-use state of the needle-based device according to the automatic decompression of the spring, wherein the automatic decompression of the spring provides a second force in a second direction completely opposite to the first direction.

19. The needle-based device according to claim 15, wherein, The portion of the needle is bonded to the inner cross-sectional width of the needle port using UV resin.

20. The needle-based device according to claim 18, wherein, Based on the engagement of the needle sheath with the syringe via the wing, the needle-based device is securely held in its first non-use state by the needle sheath surrounding the entire protruding length of the needle and the entire protruding length surrounding the spring.

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