Pen cap type injection pen touch typing assist device

Abstract

The utility model discloses a pen cap type injection pen touch typing assist device, and relates to the technical field of medical auxiliary equipment. The pen cap type injection pen touch typing assist device comprises a pen cap and a tail cover, a containing cavity used for containing an injection pen is formed in the pen cap, an elastic reset structure is arranged in the containing cavity, and the elastic reset structure is used for supporting and driving the injection pen to reset and move in the axial direction of the pen cap; the tail cover is detachably arranged on the lower portion of the pen cap, the tail cover is used for covering a needle head of the injection pen, an injection opening is formed in the end, close to the needle head, of the tail cover, and the injection opening is used for allowing the needle head to stretch out of or retract into the tail cover. The pen cap type injection pen touch typing assist device is used for solving the problems that a traditional injection pen is inconvenient to operate, and an existing assist device is poor in adaptability.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary equipment technology, and in particular to a pen cap type injection pen blind injection aid. Background Technology

[0002] Traditional injection pens have many drawbacks. The exposed needle often causes fear in patients. The injection process requires inserting the needle subcutaneously and then pressing a button to advance it, making the procedure cumbersome. Furthermore, there's a risk of scratching the skin or bending the needle during insertion. These issues are particularly inconvenient when administering injections to different areas such as the arm, buttocks, and thigh.

[0003] To address the problems of traditional injection pens, some patents have been proposed for improvement. For example, the "Integrated Fully Automatic Insulin Injection Pen" (patent number ZL201510043759.2) incorporates an internal automatic injection system and ejection device, an external button control system, and a pen cap at the bottom of the pen. This allows for needle concealment and one-button injection, solving some of the problems of traditional injection pens. However, this patent also has significant drawbacks. Its complex structure leads to high manufacturing costs. Furthermore, it requires pushing and pulling the pen cartridge during operation and is incompatible with various commonly used injection pens on the market, resulting in high market entry barriers (belonging to the category of Class II medical devices). This has prevented the patent from being successfully launched and promoted in the market.

[0004] Therefore, there is an urgent need for an auxiliary device that is simple in structure, easy to operate, inexpensive, and widely compatible with existing injection pens to meet the needs of patients and the market. Summary of the Invention

[0005] The purpose of this invention is to provide a pen cap type injection pen blind injection aid to solve the problems of inconvenient operation of traditional injection pens and poor adaptability of existing aids.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pen cap type injection pen blind injection aid, comprising: a pen cap, wherein the pen cap has an internal cavity for accommodating the injection pen, and an elastic reset structure is provided in the cavity, the elastic reset structure being used to support and drive the injection pen to reset and move along the axial direction of the pen cap; a tail cover, detachably disposed at the lower part of the pen cap, the tail cover being used to cover the needle of the injection pen, and an injection port being provided at one end of the tail cover near the needle, the injection port being used for the needle to extend or retract from the tail cover.

[0007] Optionally, the receiving cavity includes an upper large cavity and a lower small cavity, the large cavity being used to house the pen body of the injection pen, and the small cavity being used to house the pen refill of the injection pen.

[0008] Optionally, the elastic reset structure is disposed at the connection between the large cavity and the small cavity, and the elastic reset structure is engaged with the injection pen.

[0009] Optionally, the elastic reset structure is configured as a compression spring, which is sleeved on the outside of the injection pen.

[0010] Optionally, the pen cap further includes a limiting structure disposed on both sides of the sidewall of the small cavity for locking or releasing the injection pen.

[0011] Optionally, the limiting structure is formed as a gripper, which can be opened and closed to lock and release the pen refill of the injection pen.

[0012] Optionally, the pen cap further includes a hook disposed on the outside of the pen cap, and the hook is formed in a wave shape for easy gripping.

[0013] Compared with existing technologies, the pen-cap type blind injection aid provided by this application has broad versatility. The structural design of the receiving cavity and the locking method of the grippers enable it to be applicable to various types of injection pens, expanding the application range of the aid, meeting the needs of different patients, and possessing strong market competitiveness. Furthermore, it improves operational convenience, eliminating the need for complex step-by-step operations like traditional injection pens. This is especially beneficial for patients with limited operational abilities, significantly reducing operational difficulty and improving the convenience of injection. Moreover, by covering the needle with a tail cap and concealing the needle during injection, the patient does not need to directly... The ability to see the needle and administer injections blindly effectively alleviates patients' fear of needles. Furthermore, the tail cover not only prevents external contamination of the needle, reducing the risk of infection, but also ensures that the needle only extends from the tail cover when the injection button is pressed, remaining hidden at all other times. This minimizes the risk of accidental injury from needle exposure, such as accidental puncture, further enhancing safety. Finally, compared to some solutions that employ complex structures and advanced technologies to improve injection pens, this application achieves the intended function with a relatively simple structure and fewer accessories, effectively reducing manufacturing costs and giving the product a price advantage in the market, making it easier to promote and popularize. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of the pen cap type injection pen blind injection aid provided in the embodiment of this utility model.

[0015] Figure 2 This is a schematic diagram of the pen cap type injection pen blind injection aid provided in the embodiment of this utility model in the injection state.

[0016] Figure 3 The limiting structure of the pen cap type injection pen blind injection aid provided in this embodiment of the utility model is a schematic diagram of a limiting screw.

[0017] Figure 4 A schematic diagram of the overall structure of the pen cap type injection pen blind injection aid provided in this embodiment of the utility model.

[0018] Figure 5 for Figure 4 Axial view of the pen cap.

[0019] Figure reference numerals: 1-Pen cap type injection pen blind injection aid; 2-Injection pen; 3-Pen cap; 4-Tail cover; 5-Elastic reset structure; 6-Injection port; 7-Limiting structure; 8-Hook; 9-Button; 10-Dose window; 11-Pen cartridge; 12-Needle. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Please see Figures 1-5 The pen cap type injection pen blind injection aid 100 provided in this embodiment of the utility model includes a pen cap 3 and a tail cover 4. The pen cap 3 has a receiving cavity for accommodating the injection pen 1. An elastic reset structure 5 is provided in the receiving cavity. The elastic reset structure 5 is used to support and drive the injection pen 1 to reset and move along the axial direction of the pen cap 3. The tail cover 4 is detachably arranged at the lower part of the pen cap 3. The tail cover 4 is used to cover the needle 12 of the injection pen 1. An injection port 6 is opened at one end of the tail cover 4 near the needle 12. The injection port 6 is used for the needle 12 to extend or retract from the tail cover 4.

[0026] Here, the tail cover 4 is used to cover the needle 12 of the injection pen 1, so as to prevent the needle 12 from being exposed when not injecting, reduce the patient's psychological fear, enable blind injection, and prevent the needle 12 from being contaminated by the outside world.

[0027] In this application, the receiving cavity includes an upper large cavity and a lower small cavity. The large cavity is used to receive the pen body of the injection pen 1, and the small cavity is used to receive the pen core 11 of the injection pen 1.

[0028] In this application, the elastic reset structure 5 is disposed at the connection between the large cavity and the small cavity, and the elastic reset structure 5 is snapped into the injection pen 1.

[0029] Furthermore, the elastic reset structure 5 is configured as a compression spring, which is sleeved on the outside of the injection pen 1.

[0030] Specifically, the elastic reset structure 5 supports and drives the injection pen 1 to reset along the axial direction of the pen cap 3. When the patient presses the button 9 at the top of the injection pen 1 to perform the injection operation, the injection pen 1 will overcome the elastic force of the compression spring and move downward, so that the needle tip can penetrate the skin and inject the medication; after the injection operation is completed, under the elastic force of the compression spring, the injection pen 1 will automatically reset and move upward along the axial direction of the pen cap 3, so that the needle 12 retracts into the tail cover 4, thus hiding the needle 12.

[0031] In other embodiments, the elastic reset structure 5 may also be a reset spring, an elastic washer, an elastic rubber or other elastic component, as long as it can drive the injection pen 1 to move and reset.

[0032] In one embodiment provided in this application, the pen cap 3 further includes a limiting structure 7, which is disposed on opposite sides of the sidewall of the small cavity for selectively locking or unlocking the injection pen 1.

[0033] Please see Figures 1-5 Furthermore, the limiting structure 7 is formed as a gripper, which can open and close to lock and release the pen core 11 or the pen core holder of the injection pen 1. When the user puts the injection pen 1 into the receiving cavity of the pen cap 3, he applies a little force to the injection pen 1, and uses the tail of the pen core 11 to press against the gripper, forcing the gripper to open automatically. After the tail of the pen core 11 passes through the gripper, the gripper falls into the groove of the pen core 11 or the pen core holder of the injection pen 1, so that the grippers on both sides close to lock the pen core of the injection pen, thus fixing the injection pen 1 firmly in the pen cap 3, while not affecting the up and down movement of the injection pen 1 along the axis of the pen cap 3. With this setting, during repeated use, there is no need to remove the injection pen 1 from the auxiliary device 100. In subsequent use, only the needle 12 needs to be replaced. Meanwhile, since the grippers are openable and closable, when it is necessary to replace the pen refill, a little force can be applied to pull the injection pen 1 outward, forcing the grippers to open, thereby releasing the grippers from the injection pen and pulling the injection pen out of the auxiliary device. In addition, the openable and closable design of the grippers makes the auxiliary device 100 applicable to injection pens 1 of different specifications and models, further enhancing its versatility.

[0034] Please see Figure 3 In other embodiments, the limiting structure 7 may also be a limiting screw, a buckle, or other structure, as long as it can fix the injection pen 1 in the auxiliary device 100.

[0035] In addition, the pen cap 3 also includes a hook 8, which is located on the outside of the pen cap 3 and is shaped into a wave for easy gripping. This shape design conforms to ergonomic principles. When the patient uses the aid 100 for injection, four fingers can naturally grip the hook 8, providing a stable and comfortable grip, making it easier for the patient to control the position and pressure of the aid 100, and helping to improve the accuracy and comfort of the injection operation.

[0036] In practice: Installing the injection pen 1: First, according to the doctor's instructions or your own treatment needs, adjust the injection pen 1 to the accurate dosage required through the dosage window 10 on the injection pen 1. Insert the adjusted injection pen 1 into the receiving cavity of the pen cap 3 through the upper opening of the pen cap 3. At this time, the pen body of the injection pen 1 will enter the large cavity, and the pen refill 11 will enter the small cavity. After the injection pen 1 is placed in the pen cap 3, the clamping jaws open and close, causing the jaws to interfere with and limit the movement of the pen refill 11.

[0037] Connect the tail cover 4: Connect the tail cover 4 to the lower part of the pen cap 3. The tail cover 4 and pen cap 3 can be connected using common detachable connection methods such as snap-fit ​​or threaded connection. During connection, ensure that the tail cover 4 and pen cap 3 fit tightly to avoid looseness or gaps, thus ensuring effective coverage of the needle 12 and preventing external contamination. After connection, ensure that the injection port 6 of the tail cover 4 accurately corresponds to the position of the needle 12 of the injection pen 1.

[0038] Injection Procedure: The patient naturally grasps the hook 8 on the outside of the pen cap 3 with four fingers. The hook 8 is designed with a wave-like shape for easy grip, providing a comfortable and stable hold. When holding the pen, ensure the fingers are correctly positioned to accurately control the position and force of the assist device 100. Place the bottom of the tail cap 4 close to the injection site, such as the arm, buttocks, or thigh. Press the button 9 at the top of the injection pen 1 with your thumb. The injection pen 1 will overcome the spring force under the pressure of the thumb and move downwards along the axis of the pen cap 3, allowing the needle tip to pierce the skin first. The medication is then sprayed out through the needle 12 and slowly seeps into the subcutaneous tissue, completing the injection. During the pressing of button 9, maintain moderate pressure and speed to avoid excessive force or slow pressure, which could affect the injection effect.

[0039] As can be seen from the structure and specific implementation process of the pen-cap type injection pen blind injection aid 100, the aid 100 provided in this application has wide versatility. The structural design of the receiving cavity and the opening and closing function of the gripper make it applicable to various types of injection pens 1, expanding the application range of the aid 100, meeting the needs of different patients, and having strong market competitiveness. In addition, it can improve the convenience of operation, eliminating the need for complex step-by-step operations like traditional injection pens 1, especially for patients with limited operational ability, significantly reducing the difficulty of operation and improving the convenience of injection operation. Furthermore, by covering the needle 12 with the tail cover 4 and hiding the needle 12 during the injection process, the patient does not need to directly see it during the entire injection process. The needle 12 enables blind injection and effectively alleviates patients' fear of the needle 12. Furthermore, the tail cover 4 not only prevents external contamination of the needle 12, reducing the risk of infection, but also ensures that the needle 12 only extends from the tail cover 4 when the button 9 is pressed during injection, remaining hidden at other times. This reduces the risk of accidental injury, such as accidental puncture, from needle exposure, further improving safety. Finally, compared to some solutions that employ complex structures and advanced technologies to improve the injection pen 1, this application achieves the intended function using a relatively simple structure and fewer accessories, effectively reducing manufacturing costs and giving the product a price advantage in the market, making it easier to promote and popularize.

[0040] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0041] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A pen-cap type injection pen blind-printing aid, characterized in that, include: The pen cap has an internal cavity for accommodating the injection pen, and an elastic reset structure is provided inside the cavity. The elastic reset structure supports and drives the injection pen to reset along the axial direction of the pen cap. The tail cover is detachably disposed at the lower part of the pen cap. The tail cover is used to cover the needle of the injection pen. An injection port is provided at one end of the tail cover near the needle, and the injection port is used for the needle to extend or retract from the tail cover.

2. The pen-cap type injection pen blind-type injection aid according to claim 1, characterized in that, The receiving cavity includes an upper large cavity and a lower small cavity. The large cavity is used to house the pen body of the injection pen, and the small cavity is used to house the pen refill of the injection pen.

3. The pen-cap type injection pen blind-type injection aid according to claim 2, characterized in that, The elastic reset structure is disposed at the connection between the large cavity and the small cavity, and the elastic reset structure is engaged with the injection pen.

4. The pen-cap type injection pen blind injection aid according to claim 1, characterized in that, The elastic reset structure is configured as a compression spring, which is sleeved on the outside of the injection pen.

5. The pen-cap type injection pen blind-type injection aid according to claim 2, characterized in that, The pen cap also includes a limiting structure, which is disposed on both sides of the side wall of the small cavity for detachably fixing the injection pen.

6. The pen-cap type injection pen blind-printing aid according to claim 5, characterized in that, The limiting structure is formed as a gripper, which can open and close to lock and release the pen refill of the injection pen.

7. The pen-cap type injection pen blind-type injection aid according to claim 1, characterized in that, The pen cap also includes a hook, which is disposed on the outside of the pen cap and is formed in a wave shape for easy gripping.

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