A universal injection aid

Abstract

The utility model relates to injection article technical field, specifically disclose a general type injection auxiliary device, include: replaceable profiling support is equipped with the positioning recess that carries out axial positioning to the needle cylinder of injector, auxiliary device main part is equipped with the support card slot that the replaceable profiling support that is equipped with the needle cylinder is loaded cardes into, flip element, one end is articulated with auxiliary device main part, other end with auxiliary device main part open and close connection, replaceable profiling pressure block, removeable installation in the side of flip element close to auxiliary device main part, wherein, replaceable profiling pressure block has with flip element positive rotation to, cooperate replaceable profiling support clamping fixed needle cylinder radial clamping state, and have with flip element reverse rotation to, loosen needle cylinder radial loosening state. The utility model provides a general type injection auxiliary device, can effectively solve the problem that only single type injection is matched to the existing injection auxiliary device.

Description

Technical Field

[0001] This utility model relates to the field of injection products technology, and in particular to a universal injection aid. Background Technology

[0002] An injection aid is a medical device used to assist patients or healthcare professionals in administering medications. With the increasing popularity of self-injectable medications, such as insulin, biologics, and hormones, injection aids are being used more and more extensively in clinical and home care.

[0003] During drug injection, especially when patients self-inject, several operational difficulties often arise: First, hand tremors can easily cause needle deviation, affecting injection accuracy; second, different drugs have strict requirements for injection depth, such as the significant difference in needle depth between subcutaneous and intramuscular injections; third, certain special populations, such as the elderly, arthritis patients, or those with hand dysfunction, face considerable difficulty in handling syringes. These factors can all lead to problems such as inaccurate dosage, injection pain, and even tissue damage.

[0004] Syringes produced by different manufacturers have different shapes and sizes. Even different models of syringes from the same manufacturer have different shapes and sizes. Therefore, most injection aids on the market are currently specialized, meaning that each type of injection aid can only be used with one type of syringe.

[0005] The development cycle of injection aids is long and the cost is high. Their low adaptability makes them unable to meet the rapidly developing market demand.

[0006] Therefore, there is an urgent need to improve existing injection aids to enhance their adaptability and meet the rapidly evolving market demands.

[0007] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0008] One objective of this invention is to provide a universal injection aid that can effectively solve the problem that existing injection aids can only be used with a single type of syringe.

[0009] To achieve the above objectives, this utility model provides a universal injection aid, comprising:

[0010] A replaceable contoured support, wherein the replaceable contoured support is provided with a positioning recess for axial positioning of the syringe barrel;

[0011] The auxiliary device body is provided with a bracket slot for inserting the replaceable contour bracket containing the syringe.

[0012] A flip cover, one end of which is hinged to the auxiliary body, and the other end of which is openably and closably connected to the auxiliary body;

[0013] A replaceable contouring pressure block is detachably installed on the side of the flip cover near the main body of the auxiliary device;

[0014] The replaceable contouring block has a radially clamped state where it rotates forward with the flip cover and clamps the syringe in conjunction with the replaceable contouring bracket; and a radially released state where it rotates backward with the flip cover and releases the syringe.

[0015] Optionally, one end of the positioning recess is provided with a limiting insertion hole for the needle tip of the syringe to be inserted, and the other end of the positioning recess is provided with a finger support groove for the finger support portion of the syringe to be engaged.

[0016] Optionally, the circumferential surface of the replaceable contour bracket is provided with a plurality of bracket positioning slots arranged along the axial direction.

[0017] The auxiliary device body is provided with a limiting plate for engaging with any of the bracket positioning slots.

[0018] Optionally, each of the bracket positioning slots is located on the side of the replaceable contour bracket away from the flip cover.

[0019] Optionally, the auxiliary device body is provided with a needle outlet through which the needle tip of the syringe passes, and a bracket through slot is provided between the needle outlet and the bracket slot for the interchangeable contour bracket to be inserted at an angle.

[0020] Optionally, a guide cone surface is provided at one end of the needle outlet near the support groove, and the diameter of the guide cone surface gradually decreases toward the needle outlet.

[0021] Optionally, the auxiliary device body is provided with a hook portion for engaging with the side of the replaceable contour bracket facing away from the limiting plate.

[0022] Optionally, the inner side of the flip cover is provided with a pressure block positioning boss into which the replaceable contour pressure block is inserted.

[0023] The replaceable contouring block has a contouring groove on the side away from the flip cover that matches the circumferential surface of the syringe.

[0024] Optionally, the flip cover is magnetically connected, glued, snapped, or interference-fitted to the replaceable contoured pressure block.

[0025] Optionally, the replaceable contouring bracket is a rigid injection molded part, and the replaceable contouring pressure block is a flexible rubber block.

[0026] The beneficial effects of this utility model are as follows: It provides a universal injection aid, which, through a split design of the aid body (support slot), a replaceable contoured support (axial positioning), a replaceable contoured pressure block (radial clamping), and a flip cover (clamping / releasing control), achieves flexible adaptation to syringes of different shapes and sizes. Only the core components (replaceable contoured support and replaceable contoured pressure block) need to be replaced, allowing the same aid body to adapt to various different syringes without redesigning and manufacturing the entire aid. This greatly improves the product's versatility, reduces development costs and time, and meets the diverse needs of the market. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A cross-sectional schematic diagram of a general-purpose injection aid provided in the embodiments;

[0029] Figure 2 A schematic diagram of the opening flap of the universal injection aid provided in the embodiment;

[0030] Figure 3 This is a schematic diagram of the replaceable contour-following bracket provided in the embodiment;

[0031] Figure 4 An exploded view of the general-purpose injection aid provided in the embodiments;

[0032] Figure 5 This is a schematic diagram of the cover flap of a universal injection aid provided in an embodiment.

[0033] In the picture:

[0034] 1. Syringe; 101. Needle; 1011. Finger rest; 102. Sheath; 103. Push rod;

[0035] 2. Replaceable contour bracket; 201. Positioning recess; 2011. Limiting insertion hole; 2012. Finger support slot; 202. Bracket positioning slot;

[0036] 3. Auxiliary device body; 301. Bracket slot; 302. Limiting plate; 303. Needle outlet; 304. Bracket through slot; 305. Guide cone surface; 306. Hook part;

[0037] 4. Flip-top component; 401. Pressure block positioning boss;

[0038] 5. Replaceable contouring block; 501. Contouring groove for the block. Detailed Implementation

[0039] In this utility model, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0040] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.

[0041] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.

[0042] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.

[0043] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0044] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0045] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0046] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0047] See Figures 1-5 This utility model provides a universal injection aid for clamping and fixing the syringe barrel 10 of the syringe 1, so that the user can push the push rod 103 to complete the injection operation. Generally speaking, the syringe 1 (which may be a medical syringe containing medicine or a practice syringe for practice) usually includes a syringe barrel 101 with a finger support 1011, a needle tip fixed to one end of the syringe barrel 101, a sheath 102 covering the outside of the needle tip, and a push rod 103 inserted into the other end of the syringe barrel 101. Pushing the push rod 103 can push the liquid medicine in the syringe barrel 101 outward through the needle tip.

[0048] Specifically, the specific structure of syringe 1 is not the focus of this utility model, so it will not be described in detail.

[0049] The universal injection aid provided by this utility model includes:

[0050] The replaceable contour bracket 2 is provided with a positioning recess 201 for axially positioning the syringe barrel 101 of the syringe 1.

[0051] The auxiliary device body 3 is provided with a bracket slot 301 for the replaceable contour bracket 2 containing the syringe 101 to be inserted.

[0052] A flip cover 4, one end of which is hinged to the auxiliary body 3, and the other end of which is openable and closable connected to the auxiliary body 3;

[0053] Replaceable contouring block 5, which is detachably installed on the side of the flip cover 4 near the auxiliary body 3;

[0054] The replaceable contouring block 5 has a radially clamped state where it rotates forward with the flip cover 4 to clamp and fix the syringe 101 in conjunction with the replaceable contouring bracket 2; and a radially released state where it rotates backward with the flip cover 4 to release the syringe 101.

[0055] The universal injection aid provided by this utility model works as follows:

[0056] S10: Preparation (Replacing the adapter component)

[0057] (1) Select the corresponding replaceable contour bracket 2 and replaceable contour pressure block 5 according to the syringe 101 of the specific model of syringe 1 to be used.

[0058] (2) Insert the selected replaceable contour bracket 2 into the bracket slot 301 on the auxiliary body 3. At this time, the "positioning recess 201" on the replaceable contour bracket 2 faces upward.

[0059] (3) Install the selected replaceable contouring block 5 (which can be a snap, magnetic or embedded) onto the mounting position of the flip cover 4 near the auxiliary body 3.

[0060] S20: Loading syringe 1

[0061] (1) Open the flip cover 4 in the opposite direction so that it is in a radially loose state.

[0062] (2) Place the syringe 101 (pre-filled with medication and plunger 103) into the positioning recess 201 of the replaceable contour bracket 2. The shape of the positioning recess 201 is designed according to the selected syringe 101, which can accurately hold the syringe 101, especially the finger support 1011 of the syringe 101, thereby providing axial positioning (preventing axial movement of the syringe 101) and ensuring the consistency of injection depth. At this time, the syringe 101 is only initially placed in the positioning recess 201 of the replaceable contour bracket 2 and has not yet been clamped.

[0063] S30: Fixing syringe 101

[0064] (1) Close the flip cover 4 and rotate it in the forward direction until it snaps into the auxiliary body 3.

[0065] (2) As the flip cover 4 closes, the replaceable contouring block 5 installed inside it also moves downward and presses against the syringe 101 placed in the positioning groove of the replaceable contouring bracket 2.

[0066] (3) At this time, the replaceable contouring block 5 enters the radial clamping state. The replaceable contouring block 5 cooperates with the replaceable contouring bracket 2 below to firmly clamp and fix the circumferential surface of the syringe 101 from both sides (radially).

[0067] Key effect: The syringe barrel 101 of the syringe 1 is now completely fixed inside the auxiliary body 3 both axially (positioned by the positioning recess 201) and radially (by the clamping of the replaceable contouring block 5 and the replaceable contouring bracket 2). The contour of the replaceable contouring block 5 and the contour of the replaceable contouring bracket 2 below it together wrap around and lock the syringe barrel 101, preventing any shaking or displacement of the syringe barrel 101 during injection.

[0068] S40: Injection:

[0069] The user (patient or medical staff) holds the main body 3 of the assist device with the four fingers other than the thumb (the main body is usually designed with a contour that is easy to hold), and ensures that the needle tip of the assist device (the needle of the syringe 1 protrudes from the front end of the main body 3 of the assist device) is aligned with and perpendicular to the skin of the injection site.

[0070] The thumb pushes the plunger 103 of syringe 1. Because syringe 101 is firmly clamped and fixed, only plunger 103 can slide smoothly.

[0071] Key benefits: The universal injection aid ensures the needle tip enters the skin vertically and stably, and keeps the syringe 101 in place throughout the injection process. The user only needs to control the push rod 103 to advance, greatly reducing the difficulty of operation and the risk of error.

[0072] S50: Release syringe 101 from syringe 1:

[0073] After the injection is complete, carefully remove the universal injection aid.

[0074] Open the flip cover 4 and rotate it in the opposite direction to return it to the radially loosened state.

[0075] At this point, the replaceable contour block 5 is lifted, and radial pressure is no longer applied to the syringe 101, thereby allowing the replaceable contour bracket 2 containing the syringe 1 to be removed from the auxiliary body 3.

[0076] S60: Reusable / Replaceable adapter:

[0077] If you need to reuse it, and it is the same syringe 1, simply repeat steps S20-S50.

[0078] If a different type of syringe 1 is required, return to step S10: select and replace the matching replaceable contour bracket 2 and replaceable contour pressure block 5, and then perform steps S20-S50 to load syringe 1 for operation.

[0079] In summary, the universal injection aid, through its modular design of the aid body 3 (support slot 301), a replaceable contoured support (axial positioning), a replaceable contoured clamping block (radial clamping), and a flip cover 4 (clamping / releasing control), achieves flexible adaptation to syringes 1 of different shapes and sizes. Only the core components (replaceable contoured support 2 and replaceable contoured clamping block 5) need to be replaced to allow the same aid body 3 to adapt to multiple different syringes 1, without requiring the redesign and manufacture of the entire aid. This greatly improves product versatility, reduces development costs and time, and meets diverse market demands.

[0080] In this embodiment, one end of the positioning recess 201 is provided with a limiting insertion hole 2011 for inserting the needle tip of the syringe 101, and the other end of the positioning recess 201 is provided with a finger support groove 2012 for the finger support portion 1011 of the syringe 101 to be inserted. When loading the syringe 1 onto the replaceable contour bracket 2, first insert the needle tip of the syringe 101 into the limiting insertion hole 2011, and then insert the finger support portion 1011 downwards into the finger support groove 2012.

[0081] Optionally, the replaceable contoured bracket 2 has a plurality of bracket positioning slots 202 arranged axially on its circumferential surface, and the auxiliary device body 3 has a limiting plate 302 for engaging any of the bracket positioning slots 202. By engaging the limiting plate 302 into different bracket positioning slots 202, the exposed size of the needle tip relative to the auxiliary device body 3 can be adjusted (equivalent to adjusting the needle insertion depth).

[0082] Furthermore, each of the aforementioned bracket positioning slots 202 is located on the side of the replaceable contour bracket 2 away from the flip cover 4. When the flip cover 4 is closed, the clamping force applied by the replaceable contour block 5 to the syringe 101 can also press the limiting plate 302 into the bracket positioning slot 202, preventing the replaceable contour bracket 2 from axially shifting relative to the auxiliary body 3 during the injection process.

[0083] In this embodiment, the auxiliary device body 3 is provided with a needle outlet 303 through which the needle tip of the syringe 1 passes. A bracket through-slot 304 is provided between the needle outlet 303 and the bracket slot 301 for the interchangeable contour bracket 2 to be inserted at an angle. A guide cone surface 305 is provided at one end of the needle outlet 303 near the bracket through-slot 304, and the diameter of the guide cone surface 305 gradually decreases towards the needle outlet 303.

[0084] Furthermore, the auxiliary device body 3 is provided with a hook portion 306 for engaging with the side of the replaceable contour bracket 2 facing away from the limiting plate 302.

[0085] When installing the replaceable profilotype bracket 2 containing the syringe 1, the needle tip covered with the sheath 102 is usually inserted into the bracket through slot 304 first. Before the replaceable profilotype bracket 2 enters the bracket through slot 304, the sheath 102 will first abut against the guide cone surface 305. Under the guidance of the guide cone surface 305, the user only needs to continue to insert the replaceable profilotype bracket 2, so that the replaceable profilotype bracket 2 will automatically align and pass through the bracket through slot 304, thereby reducing the difficulty of installing and aligning the replaceable profilotype bracket 2.

[0086] After the replaceable contour bracket 2 passes through the bracket slot 304, press the replaceable contour bracket 2 downward into the bracket slot 301. The hook part 306 clamps and fixes the replaceable contour bracket 2 on the side facing away from the limiting plate 302. This can prevent the replaceable contour bracket 2 from coming off the bracket slot 301 upward and also restrict the bracket positioning slot 202 from coming off the limiting plate 302 upward. Then, the flip cover 4 can be rotated to fasten and fix the flip cover 4 onto the auxiliary body 3.

[0087] Optionally, the inner side of the flip cover 4 is provided with a pressure block positioning boss 401 for inserting the replaceable contouring pressure block 5, and the replaceable contouring pressure block 5 is provided with a pressure block contouring groove 501 that matches the circumferential surface of the syringe 101 on the side away from the flip cover 4. Further, the flip cover 4 and the replaceable contouring pressure block 5 are magnetically connected, adhesively bonded, snap-fitted, or interference-fitted.

[0088] In this embodiment, the replaceable contouring bracket 2 is a rigid injection molded part, and the replaceable contouring pressure block 5 is a flexible rubber block.

[0089] Rigid plastics can precisely replicate the complex contours of various syringes through molds, including the hexagonal slots of insulin pens or the wavy texture of pre-filled needles. Rigid holders made of rigid plastics (usually PC or ABS) can ensure positioning accuracy (which is one of the reasons for choosing rigid materials).

[0090] The replaceable contouring block 5, made of materials such as silicone or TPE, utilizes the self-adaptive properties of flexible materials to reduce the stringent requirements for the absolute precision of the contouring manufacturing of the block itself, as it can compensate for minor mismatches through deformation (which is not possible with rigid-to-rigid manufacturing). This is beneficial for mass production and cost control.

[0091] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A universal injection aid, characterized in that, include: Replaceable contour bracket (2), the replaceable contour bracket (2) is provided with a positioning recess (201) for axial positioning of the syringe barrel (101) of the syringe (1). The auxiliary device body (3) is provided with a bracket slot (301) for the replaceable contour bracket (2) containing the syringe (101) to be inserted. A flip cover (4), one end of which is hinged to the auxiliary body (3), and the other end of which is openable and closable connected to the auxiliary body (3); Replaceable contouring block (5), the replaceable contouring block (5) is detachably installed on the side of the flip cover (4) near the auxiliary body (3); The replaceable contouring block (5) has a radially clamped state where it rotates forward with the flip cover (4) and clamps and fixes the syringe (101) in conjunction with the replaceable contouring bracket (2); and a radially released state where it rotates in the opposite direction with the flip cover (4) and releases the syringe (101).

2. The universal injection aid according to claim 1, characterized in that, One end of the positioning recess (201) is provided with a limiting insertion hole (2011) for the needle tip of the syringe (101) to be inserted, and the other end of the positioning recess (201) is provided with a finger support slot (2012) for the finger support portion (1011) of the syringe (101) to be inserted.

3. The universal injection aid according to claim 1, characterized in that, The circumferential surface of the replaceable contour bracket (2) is provided with several bracket positioning slots (202) arranged along the axial direction. The auxiliary device body (3) is provided with a limiting plate (302) for engaging in any of the bracket positioning slots (202).

4. The universal injection aid according to claim 3, characterized in that, Each of the bracket positioning slots (202) is located on the side of the replaceable contour bracket (2) away from the flip cover (4).

5. The universal injection aid according to claim 3, characterized in that, The auxiliary body (3) is provided with a needle outlet (303) through which the needle tip of the syringe (1) passes, and a bracket through slot (304) is provided between the needle outlet (303) and the bracket slot (301) for the interchangeable contour bracket (2) to be inserted at an angle.

6. The universal injection aid according to claim 5, characterized in that, The needle outlet (303) is provided with a guide cone (305) at one end near the support groove (304), and the diameter of the guide cone (305) gradually decreases toward the needle outlet (303).

7. The universal injection aid according to claim 5, characterized in that, The auxiliary body (3) is provided with a hook (306) for engaging with the side of the replaceable contour bracket (2) facing away from the limiting plate (302).

8. The universal injection aid according to claim 1, characterized in that, The inner side of the flip cover (4) is provided with a pressure block positioning boss (401) into which the replaceable contour pressure block (5) is inserted. The replaceable contouring block (5) has a contouring groove (501) on the side away from the flip cover (4) that matches the circumferential surface of the syringe (101).

9. The universal injection aid according to claim 8, characterized in that, The flip cover (4) is magnetically connected, bonded, snapped, or interference-fitted to the replaceable contoured pressing block (5).

10. The universal injection aid according to claim 1, characterized in that, The replaceable contour bracket (2) is a rigid injection molded part, and the replaceable contour pressing block (5) is a flexible rubber block.

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