Insulin pen
By setting up convex and convex strips inside the pen hat of the insulin pen, and using the promoted device to push the needle on the stretch box, the risk of stabbing the traditional insulin pen needle head exposure is to achieve the safety and simple effect of operation.
Patent Information
- Application Number
- CN202420834596.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-19
AI Technical Summary
The needle of a traditional insulin pen is exposed to both ends, which leads to a risk of stabbing during removal or treatment.
A kind of insulin pen is designed. The pens are equipped with convex and convex bars for restricted rotation to take out the needle body, and the needle body is pushed to the stretch box by pushing the device. The operator does not need to contact the needle.
Effectively avoid the risk of stabbing the needle during the process of removing or processing, the operation is simple, safe, and the structural design is easy to use.
Smart Images
Figure CN222399777U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to an insulin pen. Background Art
[0002] Traditional insulin pens usually consist of a pen cap, a pen body (with a scale), a dose adjustment plug, an injection button and a pen core holder (containing liquid medicine). The needle of the insulin pen consists of a disposable needle body, an inner needle cap and an outer needle cap. The needle body and the inner needle cap are sealed in the outer needle cap by a sealing cover.
[0003] When using an insulin pen, first install the pen core holder into the pen body and shake it to mix the liquid in the pen thoroughly, then disinfect the bottle mouth with 75% alcohol, then tear off the needle cap, align the head of the needle body with the bottle mouth, drive the needle body to rotate through the outer needle cap to install the needle body on the pen body, remove the outer needle cap, adjust the metering and remove the inner needle cap, and then inject after exhausting. After the injection is completed, the user needs to cover the inner needle cap, then unscrew the entire needle body through the outer needle cap and remove it, and finally cover the pen body with the pen cap to complete the entire operation process.
[0004] However, the needle tip of the needle body is designed to be exposed at both ends. After injecting insulin into the patient, due to the relatively small diameter of the inner needle cap, the needle tip exposed outside during the process of closing the inner needle cap can easily cause punctures. Although the traditional insulin pen needle can be directly removed by unscrewing the outer needle cap, which can protect the needle tip on the patient side from harming the human body, the needle tip on the side that contacts the insulin pen cannot be protected and there is still a risk of punctures. Utility Model Content
[0005] The technical problem to be solved by the utility model is: how to avoid stabbing injuries in the process of removing or handling the needle due to the exposure of both ends of the needle of the insulin pen.
[0006] In order to solve the above technical problems, the utility model provides an insulin pen, comprising a pen cap and a pen body, wherein a needle body is installed on the pen body;
[0007] The pen cap has a proximal end and a distal end, the proximal end of the pen cap is provided with an opening, the inner circumferential wall of the proximal end of the pen cap is provided with a boss of an annular structure, the inner circumferential wall of the boss is provided with a convex strip, the boss and the convex strip are used to remove the needle body from the pen body, the inner side of the pen cap is provided with a pushing device, the pushing device includes a guide plate and a pushing column, the guide plate can move axially inside the pen cap, the pushing column is arranged on the side of the guide plate facing the boss, and the pushing column can push the needle body out of the pen cap when moving from the distal end to the proximal end.
[0008] Further preferably, the pushing column and the guide plate are perpendicular to each other, and the pushing column is a hollow tubular structure.
[0009] Further preferably, the outer diameter of the pushing column is smaller than the inner diameter of the boss.
[0010] Further preferably, when the pushing column moves to the nearest end, the proximal end of the pushing column and the proximal end of the boss are placed in the same horizontal plane.
[0011] Further preferably, the pushing device also includes a pushing block, which is arranged on the side wall of the guide plate, and the side wall of the pen cap is provided with a window corresponding to the pushing block, and at least a part of the pushing block extends out of the outside of the window.
[0012] Further preferably, there are multiple push blocks, and the multiple push blocks are arranged at intervals along the circumferential wall of the guide plate.
[0013] Further preferably, the convex strip extends along the axial direction of the pen cap, and there are multiple convex strips, which are arranged at intervals around the inner circumferential wall of the boss.
[0014] Further preferably, it also includes an anti-skid pad, which is arranged on the inner wall of the proximal end of the pen cap. When the pushing column moves to the nearest end, the proximal end of the pushing column and the proximal end of the anti-skid pad are placed in the same horizontal plane.
[0015] Further preferably, the anti-slip pad is an annular structure, and the inner diameter of the anti-slip pad is smaller than the inner diameter of the boss.
[0016] Further preferably, the anti-slip pad is a block structure, and there are multiple anti-slip pads, which are arranged at intervals along the inner circumferential wall of the pen cap.
[0017] Compared with the prior art, the insulin pen provided by the utility model has the following beneficial effects:
[0018] The utility model has a simple structure and is easy to operate. By arranging a boss and a convex strip in the pen cap, the needle body installed at the bottle mouth of the pen body can be limitedly rotated, so that the needle body can be taken out. At this time, the needle body is still placed in the pen cap, and the needle body can be pushed out to the sharps box through a pushing device. During this process, the operator does not need to touch the needle, which can effectively avoid puncture injuries during the process of removing or handling the needle due to the exposure of both ends of the insulin pen needle. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of an insulin pen described in the utility model.
[0020] Figure 2It is a structural schematic diagram of the pen body and the needle body of the utility model.
[0021] Figure 3 It is a structural schematic diagram of the pen cap of the utility model.
[0022] Figure 4 It is a structural schematic diagram of the pushing device of the utility model.
[0023] Figure 5 It is a front view of the pen cap of the utility model.
[0024] Figure 6 This utility model Figure 5 Cross-sectional view of section AA.
[0025] In the figure:
[0026] 100, pen cap; 110, boss; 120, convex strip; 130, guide plate; 140, push column; 150, window; 160, push block; 170, anti-skid pad;
[0027] 200, pen body;
[0028] 300, needle body; 310, needle seat; 320, needle tip. DETAILED DESCRIPTION
[0029] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like used in the present invention to indicate the orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.
[0031] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0032] In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0035] like Figure 1-Figure 2 As shown, this embodiment provides an insulin pen, including a pen cap 100 and a pen body 200, a needle body 300 is installed at the bottle mouth of the pen body 200, the needle body 300 includes a needle seat 310 and a needle tip 320, and the needle seat 310 is threadedly connected to the pen body 200.
[0036] Please combine Figure 2-Figure 6In a specific embodiment, the pen cap 100 has a proximal end and a distal end. The proximal end of the pen cap 100 is provided with an opening. The inner circumferential wall of the proximal end of the pen cap 100 is provided with a boss 110 of an annular structure. The inner circumferential wall of the boss 110 is provided with a convex strip 120. The boss 110 and the convex strip 120 are used to remove the needle body 300 from the pen body 200. A pushing device is provided on the inner side of the pen cap 100. The pushing device includes a guide plate 130 and a pushing column 140. The guide plate 130 can move axially inside the pen cap 100. The pushing column 140 is provided on the side of the guide plate 130 facing the boss 110. The pushing column 140 pushes the needle body 300 to the pen body 200. When the column 140 moves from the distal end to the proximal end, the needle body 300 can be pushed out of the pen cap 100; thus, by arranging the boss 110 and the convex strip 120 in the pen cap 100, the needle body 300 installed at the bottle mouth of the pen body 200 can be limitedly rotated, so that the needle body 300 can be taken out. At this time, the needle body 300 is still placed in the pen cap 100, and the needle body 300 can be pushed out to the sharps box through the pushing device. During this process, the operator does not need to touch the needle, which can effectively avoid punctures during the removal or handling of the needle of the insulin pen due to the exposure of both ends of the needle.
[0037] It should be noted that, in the above embodiment, the “proximal end” refers to the end where the pen cap 100 is connected to the pen body 200 , and the “distal end” refers to the end of the pen cap 100 away from the pen body 200 .
[0038] In the above embodiment, the inner diameter of the boss 110 is slightly larger than the outer diameter of the needle seat 310 , and during the process of removing the needle body 300 , the boss 110 and the needle seat 310 are connected with a gap.
[0039] In some embodiments, the pushing column 140 and the guide plate 130 are perpendicular to each other, and the pushing column 140 is a hollow tubular structure. In this way, it can be ensured that when the pushing column 140 moves from the distal end to the proximal end, it will not directly abut the needle tip 320 until the proximal end of the pushing column 140 can abut against the needle seat 310. Continuing to push the push block 160 can push the needle body 300 out of the pen cap 100, and the pushed pen cap 100 can be directly discarded into the sharps box.
[0040] In some embodiments, the outer diameter of the pushing column 140 is smaller than the inner diameter of the boss 110 , so that the pushing column 140 can completely push the needle body 300 out of the pen cap 100 to prevent the operator from contacting the needle.
[0041] In some embodiments, when the pushing column 140 moves to the most proximal end, the proximal end of the pushing column 140 and the proximal end of the boss 110 are placed on the same horizontal plane, so that the needle body 300 can completely escape from the boss 110 and can be pushed out of the pen cap 100.
[0042] In some embodiments, the pushing device also includes a pushing block 160, which is disposed on the side wall of the guide plate 130. The side wall of the pen cap 100 is provided with a window 150 corresponding to the pushing block 160. At least a portion of the pushing block 160 extends out of the outside of the window 150. By providing the pushing block 160 and the window 150, the operator can push the guide plate 130 from the outside, thereby pushing the pushing column 140 to push the needle body 300 out of the outside of the pen cap 100.
[0043] In other embodiments, a small electric cylinder may be used to replace the guide plate 130 , that is, the pushing column 140 is disposed at the piston end of the electric cylinder, and the needle body 300 is pushed out of the pen cap 100 by electric control.
[0044] In some embodiments, there are multiple push blocks 160, and the multiple push blocks 160 are arranged at intervals along the circumferential wall of the guide plate 130, so that the operator can push the guide plate 130 from different angles, thereby improving the convenience of use.
[0045] In some embodiments, the ridge 120 extends axially along the pen cap 100, and there are multiple ridges 120, which are arranged at intervals around the inner circumferential wall of the boss 110. By providing multiple ridges 120, the needle body 300 can be limited by engaging with the groove on the outer wall of the needle seat 310, so that the pen cap 100 can be rotated to rotate and remove the needle body 300.
[0046] In some embodiments, in order to avoid the inability of the boss 110 and the needle seat 310 to hold the needle body 300 due to the gap between the boss 110 and the needle seat 310, and to prevent the needle body 300 from falling off the pen cap 100, the insulin pen also includes an anti-skid pad 170, which is used to limit the axial movement of the needle body 300; the anti-skid pad 170 is arranged on the proximal inner wall of the pen cap 100, because the anti-skid pad 170 has a holding effect on the needle seat 310, therefore, in order to facilitate the needle body 300 to completely break away from the range of the anti-skid pad 170 and thus be pushed out of the pen cap 100, it is defined that when the pushing column 140 moves to the nearest end, the proximal end of the pushing column 140 and the proximal end of the anti-skid pad 170 are placed on the same horizontal plane.
[0047] In one embodiment, the anti-skid pad 170 is an annular structure, and the inner diameter of the anti-skid pad 170 is smaller than the inner diameter of the boss 110, so that the anti-skid pad 170 can form an interference fit with the needle seat 310, thereby clamping the needle body 300 and limiting the axial movement of the needle body 300.
[0048] In another embodiment, the anti-slip pad 170 is a block structure, and there are multiple anti-slip pads 170. The multiple anti-slip pads 170 are arranged at intervals along the inner circumferential wall of the pen cap 100. By adopting the block-shaped anti-slip pad 170, the needle body 300 can be clamped to limit the axial movement of the needle body 300. In addition, the raw material cost and weight can be reduced.
[0049] The working process of the utility model is as follows: after the operator uses the insulin pen for injection, the pen cap 100 is directly put on the needle body 300, at which time the needle seat 310 extends into the inner side of the boss 110, and the convex strip 120 is engaged with the groove on the outer wall of the needle seat 310 to limit the needle body 300, and after the pen cap 100 is rotated to remove the needle body 300, since the proximal inner wall of the pen cap 100 is also provided with an anti-slip pad 170, the needle body 300 can be tightly held, and the needle body 300 will not fall off at this time, and the push block 160 can be pushed from the distal end to the proximal end. 160 drives the pushing column 140 to move toward the proximal end through the guide plate 130. During this process, since the pushing column 140 is a hollow tubular structure, the needle tip 320 is placed in the pushing column 140 until the proximal end of the pushing column 140 can abut against the needle seat 310. Continuing to push the pushing block 160 can push the needle body 300 out of the pen cap 100. The pushed pen cap 100 can be directly discarded into the sharps box. During this process, the operator does not need to touch the needle, which can effectively avoid punctures during the removal or handling of the needle due to the exposure of both ends of the insulin pen needle.
[0050] In summary, the insulin pen provided by the embodiment of the utility model has a simple structure and is easy to operate. By arranging a boss 110 and a convex strip 120 in the pen cap 100, the needle body 300 installed at the bottle mouth of the pen body 200 can be limitedly rotated, so that the needle body 300 can be taken out. At this time, the needle body 300 is still placed in the pen cap 100, and the needle body 300 can be pushed out to the sharps box through a pushing device. During this process, the operator does not need to touch the needle, which can effectively avoid punctures during the removal or handling of the needle of the insulin pen due to the exposure of both ends of the needle.
[0051] The above is only a preferred embodiment of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the utility model, and these improvements and substitutions should also be regarded as the protection scope of the utility model. The above shows and describes the basic principles, main features and advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above preferred embodiments. The embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, so it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims in the utility model.
[0052] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. An insulin pen, comprising a pen cap and a pen body, wherein a needle body is installed at the bottle mouth of the pen body, characterized in that: The pen cap has a proximal end and a distal end, the proximal end of the pen cap is provided with an opening, the inner circumferential wall of the proximal end of the pen cap is provided with a boss of an annular structure, the inner circumferential wall of the boss is provided with a convex strip, the boss and the convex strip are used to remove the needle body from the pen body, the inner side of the pen cap is provided with a pushing device, the pushing device includes a guide plate and a pushing column, the guide plate can move axially inside the pen cap, the pushing column is arranged on the side of the guide plate facing the boss, and the pushing column can push the needle body out of the pen cap when moving from the distal end to the proximal end.
2. An insulin pen according to claim 1, characterized in that: The pushing column and the guide plate are perpendicular to each other, and the pushing column is a hollow tubular structure.
3. An insulin pen according to claim 2, characterized in that: The outer diameter of the pushing column is smaller than the inner diameter of the boss.
4. An insulin pen according to claim 2, characterized in that: When the pushing column moves to the most proximal end, the proximal end of the pushing column and the proximal end of the boss are placed in the same horizontal plane.
5. An insulin pen according to claim 1, characterized in that: The pushing device also includes a pushing block, which is arranged on the side wall of the guide plate. The side wall of the pen cap is provided with a window corresponding to the pushing block, and at least a part of the pushing block extends out of the window.
6. An insulin pen according to claim 5, characterized in that: There are multiple push blocks, and the multiple push blocks are arranged at intervals along the circumferential wall of the guide plate.
7. An insulin pen according to claim 1, characterized in that: The convex strip extends along the axial direction of the pen cap, and there are a plurality of the convex strips, which are arranged at intervals around the inner circumferential wall of the boss.
8. An insulin pen according to claim 1, characterized in that: It also includes an anti-skid pad, which is arranged on the inner side wall of the proximal end of the pen cap. When the pushing column moves to the nearest end, the proximal end of the pushing column and the proximal end of the anti-skid pad are placed in the same horizontal plane.
9. An insulin pen according to claim 8, characterized in that: The anti-skid pad is an annular structure, and the inner diameter of the anti-skid pad is smaller than the inner diameter of the boss.
10. An insulin pen according to claim 8, characterized in that: The anti-skid pad is a block structure, and there are multiple anti-skid pads, which are arranged at intervals along the inner circumferential wall of the pen cap.