Pen body and injection pen

Abstract

The utility model belongs to injection pen technical field, concretely relates to a pen body and injection pen, include: lower pen body, its lateral wall is provided with the card and sets the notch, the inner wall of lower pen body is provided with the support part, medicine bottle support, its plug -in in lower pen body, the lateral wall of medicine bottle support is provided with the card and sets the buckle, the card and sets the buckle plug -in in the card and sets the notch, and the lateral wall of medicine bottle support is provided with the counter -hold muscle, the counter -hold muscle is provided with the counter -hold board between the counter -hold muscle, the support part abuts the counter -hold board, in short, medicine bottle support is installed in lower pen body through the card and sets the buckle, through setting up the support part in the inner wall of lower pen body, the lateral wall of medicine bottle support sets up the counter -hold muscle, the counter -hold board between the counter -hold muscle is set up on the support part, to support medicine bottle support, makes medicine bottle support when being stressed, has good support, avoids the deviation of medicine bottle support.

Description

Technical Field

[0001] This utility model belongs to the field of injection pen technology, specifically a pen body and an injection pen. Background Technology

[0002] An injection pen is a portable, disposable or reusable medical device primarily used for subcutaneous drug injection. It is designed to improve the convenience of drug use and patient compliance, and is particularly suitable for patients with chronic diseases who require long-term self-injection, such as diabetes and growth hormone deficiency.

[0003] Injection pens typically consist of a pen body containing an injection mechanism and a vial assembly. The vial body is pushed by an injection plunger to inject the medication into the body. Existing vial assemblies usually include a vial holder and a vial body that is held in place within the holder. The vial holder is secured to the pen body with a clip, but its side walls lack adequate support. When the injection mechanism activates the vial body, the vial holder is prone to shifting, leading to dosage deviations.

[0004] Therefore, how to avoid deviation of the injection dosage due to the displacement of the vial holder is a technical problem that urgently needs to be solved in this field.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0006] This disclosure provides at least one pen body and one injection pen.

[0007] In a first aspect, embodiments of this disclosure provide a pen body, comprising: a lower pen body having a locking notch on its side wall, and a support portion on the inner wall of the lower pen body; a medicine bottle holder inserted into the lower pen body, the medicine bottle holder having a locking buckle on its side wall, the locking buckle being inserted into the locking notch; and the medicine bottle holder having a retaining rib on its side wall, the retaining ribs being arranged in pairs, a retaining plate being arranged between the retaining ribs, and the support portion abutting against the retaining plate.

[0008] In one optional embodiment, a support groove is formed between the support ribs, and the support portion includes two limiting ribs, which are engaged in the support groove, and the top of the limiting ribs abuts against the support plate.

[0009] In one alternative embodiment, the abutment ribs are provided in two pairs and are mirror-arranged on the outer wall of the medicine bottle holder.

[0010] In one optional embodiment, a pair of locking buckles are provided and mirror-arranged at the end of the medicine bottle holder, the end of the medicine bottle holder having a deformation notch; wherein, when the medicine bottle holder is pressed into the lower pen body, the end of the medicine bottle holder retracts inward so that the locking buckle is inserted into the locking notch.

[0011] In one optional embodiment, the medicine bottle holder is provided with a mounting hole adapted to mount the medicine bottle body. The opening of the mounting hole is lower than the end of the medicine bottle holder, so that the medicine bottle body is embedded in the medicine bottle holder.

[0012] In one optional embodiment, an observation window is provided on the side wall of the lower pen body, and the observation window is located between the two limiting ribs.

[0013] Secondly, this disclosure also provides an injection pen, including: the pen body described above, a support ring disposed inside the lower pen body, the side wall of the support ring being connected to the inner wall of the lower pen body, and the bottom of the abutment rib fitting against the top of the support ring.

[0014] In one optional embodiment, an excitation ring is provided inside the lower pen body, and an excitation strip is provided at the end of the excitation ring. The excitation strip is engaged in the annular gap, and the end of the excitation strip always extends out of the lower pen body.

[0015] In one alternative embodiment, the excitation bars are provided in pairs and are mirror-image disposed at the ends of the excitation ring.

[0016] In one optional embodiment, the side wall of the medicine bottle holder is provided with a limiting block, and the side wall of the excitation strip is provided with a limiting groove. The limiting block is engaged in the limiting groove to position the circumferential position of the excitation strip.

[0017] The beneficial effect of this utility model is that the pen body and injection pen have a support part set on the inner wall of the lower pen body and a retaining rib set on the side wall of the medicine bottle holder. The retaining plate between the retaining ribs is set on the support part to support the medicine bottle holder, so that the medicine bottle holder has good support when subjected to force and avoids the medicine bottle holder from shifting.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description, claims, and drawings.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A perspective view of a pen body provided for an embodiment of this disclosure;

[0022] Figure 2 An exploded view of a pen body provided in an embodiment of this disclosure;

[0023] Figure 3 A cross-sectional view of a pen body provided for an embodiment of this disclosure;

[0024] Figure 4 An exploded view of a pen body provided in an embodiment of this disclosure;

[0025] Figure 5 A cross-sectional view of a pen body provided for an embodiment of this disclosure.

[0026] In the picture:

[0027] 1. Pen body; 11. Notch; 12. Support ring; 12a. Annular gap; 13. Limiting rib; 14. Observation window; 15. Excitation ring; 15a. Excitation bar; 15b. Limiting groove;

[0028] 2. Medicine bottle support; 21. Supporting rib; 21a. Supporting groove; 21b. Supporting plate; 22. Locking buckle; 23. Deformation notch; 24. Mounting hole; 25. Medicine bottle body; 26. Limiting block. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0031] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0032] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0033] Research has revealed that the existing medicine bottle holder may shift under stress, leading to inaccurate injection dosage. This is the problem and objective of the utility model.

[0034] Based on the above research, this disclosure provides a pen body and an injection pen, which improves the stability of the medicine bottle holder by adding support positions to the side wall of the medicine bottle holder.

[0035] The shortcomings of the above solutions are the result of the utility model inventor's practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as contributions made by the utility model inventor to this disclosure.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0038] See Figures 1 to 5 The illustration shows a pen body comprising: a lower pen body 1, the side wall of which has a locking notch 11, and a support portion on the inner wall of the lower pen body 1; a medicine bottle holder 2, which is inserted into the lower pen body 1, the side wall of the medicine bottle holder 2 having a locking buckle 22, the locking buckle 22 being inserted into the locking notch 11; and the side wall of the medicine bottle holder 2 having abutting ribs 21, the abutting ribs 21 being arranged in pairs, and abutting plates 21b being arranged between the abutting ribs 21, the support portion abutting the abutting plates 21b; in short, the medicine bottle holder 2 is installed in the lower pen body 1 by the locking buckle 22, the support portion is provided on the inner wall of the lower pen body 1, the abutting ribs 21 are provided on the side wall of the medicine bottle holder 2, and the abutting plates 21b between the abutting ribs 21 are mounted on the support portion to support the medicine bottle holder 2, so that the medicine bottle holder 2 has good support when subjected to force and avoids the medicine bottle holder 2 from shifting.

[0039] In some embodiments, a support groove 21a is formed between the support ribs 21, and the support portion includes two limiting ribs 13. The two limiting ribs 13 are engaged in the support groove 21a, and the top of the limiting ribs 13 abuts against the support plate 21b. In short, the support ribs 21 are arranged in pairs with a spacing of the support groove 21a. The support portion consists of a pair of limiting ribs 13 arranged on the inner wall of the lower pen body 1. The top of the limiting ribs 13 fits against the support plate 21b to support the medicine bottle holder 2.

[0040] In some embodiments, two pairs of abutment ribs 21 are provided and mirror-arranged on the outer wall of the medicine bottle holder 2; in short, two pairs of abutment ribs 21 are provided so that both sides of the medicine bottle holder 2 are supported by the limiting ribs 13, so that the medicine bottle holder 2 is subjected to uniform force.

[0041] In some embodiments, a pair of locking buckles 22 are provided and mirror-arranged at the ends of the medicine bottle holder 2. The ends of the medicine bottle holder 2 are provided with deformation notches 23. When the medicine bottle holder 2 is pressed into the lower pen body 1, the ends of the medicine bottle holder 2 retract inward so that the locking buckles 22 can be inserted into the locking notches 11. In short, locking buckles 22 are provided on both sides of the medicine bottle holder 2 to achieve stable locking of the medicine bottle. Furthermore, the deformation notches 23 are arranged perpendicularly to the locking buckles 22, so that when the medicine bottle holder 2 is pressed into the lower pen body 1, the locking buckles 22 can be smoothly inserted into the locking notches 11.

[0042] In some embodiments, the medicine bottle holder 2 is provided with a mounting hole 24, which is suitable for mounting the medicine bottle body 25. The opening of the mounting hole 24 is lower than the end of the medicine bottle holder 2 so that the medicine bottle body 25 is embedded in the medicine bottle holder 2. In short, the mounting hole 24 is opened on the axis of the medicine bottle holder 2 to hold the medicine bottle body 25, and the opening of the mounting hole 24 is lower than the end of the medicine bottle holder 2 to embed the medicine bottle body 25.

[0043] In some embodiments, an observation window 14 is provided on the side wall of the lower pen body 1, and the observation window 14 is located between the two limiting ribs 13; in short, the observation window 14 is provided to facilitate personnel to observe the liquid status of the medicine bottle body 25.

[0044] See Figures 1 to 5 The illustration shows an injection pen, comprising: the aforementioned pen body, wherein a support ring 12 is provided inside the lower pen body 1, the side wall of the support ring 12 is connected to the inner wall of the lower pen body 1, and the bottom of the abutment rib 21 is attached to the top of the support ring 12; in short, the support ring 12 is integrally set inside the lower pen body 1 by injection molding, further supporting the abutment rib 21 to improve the stability of the medicine bottle holder 2.

[0045] In some embodiments, an excitation ring 15 is provided inside the lower pen body 1, and an excitation strip 15a is provided at the end of the excitation ring 15. The excitation strip 15a is engaged in the annular gap 12a, and the end of the excitation strip 15a always extends out of the lower pen body 1. In short, the excitation strip 15a is engaged in the annular gap 12a and extends out of the lower pen body 1 to excite the push rod in the injection mechanism to complete the injection.

[0046] In some embodiments, a pair of excitation bars 15a are provided and mirror-arranged at the end of the excitation ring 15; in short, a pair of excitation bars 15a are provided to stably excite the push rod.

[0047] In some embodiments, the side wall of the medicine bottle holder 2 is provided with a limiting block 26, and the side wall of the excitation strip 15a is provided with a limiting groove 15b. The limiting block 26 is engaged in the limiting groove 15b to position the circumferential position of the excitation strip 15a. In short, in order to ensure that the excitation strip 15a can stably excite the push rod, the circumferential position of the excitation strip 15a is limited by the setting of the limiting groove 15b and the limiting block 26 to prevent the excitation strip 15a from deflecting.

[0048] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0050] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0051] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0052] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A pen body, characterized in that, include: The lower pen body (1) has a locking notch (11) on its side wall, and a support part is provided on the inner wall of the lower pen body (1); A medicine bottle holder (2) is inserted into the lower pen body (1), and a locking buckle (22) is provided on the side wall of the medicine bottle holder (2), the locking buckle (22) being inserted into the locking notch (11); and, The side wall of the medicine bottle holder (2) is provided with abutment ribs (21), the abutment ribs (21) are arranged in pairs, and an abutment plate (21b) is provided between the abutment ribs (21), and the support part abuts against the abutment plate (21b).

2. The pen body as described in claim 1, characterized in that, The abutting ribs (21) form an abutting groove (21a) between them. The support part includes two limiting ribs (13). The two limiting ribs (13) are engaged in the abutting groove (21a), and the top of the limiting ribs (13) abuts against the abutting plate (21b).

3. The pen body as described in claim 1, characterized in that, Two pairs of the abutment ribs (21) are provided and are mirror images of the outer wall of the medicine bottle holder (2).

4. The pen body as described in claim 1, characterized in that, The buckles (22) are provided in pairs and are mirror images of the ends of the medicine bottle holder (2), the ends of which are provided with deformation notches (23); wherein, When the medicine bottle holder (2) is pressed into the lower pen body (1), the end of the medicine bottle holder (2) retracts inward so that the locking buckle (22) is inserted into the locking notch (11).

5. The pen body as described in claim 1, characterized in that, The medicine bottle holder (2) is provided with an installation hole (24), which is suitable for installing the medicine bottle body (25). The opening of the installation hole (24) is lower than the end of the medicine bottle holder (2) so that the medicine bottle body (25) is embedded in the medicine bottle holder (2).

6. The pen body as described in claim 2, characterized in that, The lower pen body (1) has an observation window (14) on its side wall, which is located between the two limiting ribs (13).

7. An injection pen, characterized in that, include: The pen body as described in any one of claims 1-6, The lower pen body (1) is provided with a support ring (12), the side wall of the support ring (12) is connected to the inner wall of the lower pen body (1), and the bottom of the abutment rib (21) is attached to the top of the support ring (12).

8. The injection pen as described in claim 7, characterized in that, An excitation ring (15) is provided inside the lower pen body (1), and an excitation strip (15a) is provided at the end of the excitation ring (15). The excitation strip (15a) is locked in the annular gap (12a), and the end of the excitation strip (15a) always extends out of the lower pen body (1).

9. The injection pen as described in claim 8, characterized in that, The excitation strips (15a) are provided in pairs and are mirror images of the ends of the excitation ring (15).

10. The injection pen as described in claim 8, characterized in that, The side wall of the medicine bottle holder (2) is provided with a limiting block (26), and the side wall of the excitation strip (15a) is provided with a limiting groove (15b). The limiting block (26) is engaged in the limiting groove (15b) to position the circumferential position of the excitation strip (15a).

Images