A safe pen injection needle

Abstract

The utility model discloses a safety pen-type injection needle, comprising an injection needle body and a shell, wherein the injection needle body comprises a base and a needle body, a groove is arranged at the bottom of the base, and the injection needle body comprises a jacket and a baffle, wherein the baffle and the jacket are flexibly connected, the baffle is matched with the bottom of the base, rotating shafts are arranged at both sides of the baffle, and the rotating shafts and the grooves are clamped. Compared with the prior art, the jacket can well shield the external needle body, and the baffle is clamped with the grooves through the rotating shafts at both sides, so that the baffle shields the lower needle body. When in use, one side of the baffle is pressed down, and the baffle is pulled out of the base after the baffle is rotated, and the jacket is rotated out of the base. The device has a compact structure, is easy to use, and is suitable for promotion.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a safety pen-type injection needle. Background Art

[0002] In an existing pen-type syringe, an external thread is provided at the front end thereof, and an injection needle assembly is connected through the thread, and the injection needle assembly includes a needle body. After use, the injection needle assembly needs to be discarded. However, during the discarding process, there is a risk of being stabbed by the needle body because the needle body is exposed. In addition, most existing pen-type syringes have a relatively complex structure, which increases the difficulty of manufacturing and production, increases the production cost, and is not convenient to use.

[0003] Therefore, how to reduce the risk of users being stabbed during the process of discarding the injection needle assembly and how to design a small and compact syringe are technical problems that those skilled in the art currently need to solve. Utility Model Content

[0004] The utility model discloses a safety pen-type injection needle, which has a compact structure and can well prevent the needle head from being exposed to the outside, and conveniently shield the needle body, thereby achieving a good protective purpose.

[0005] The utility model discloses a safety pen-type injection needle, comprising an injection needle body and a shell, characterized in that the injection needle body comprises a base and a needle body, the needle body is fixedly connected to the base, a groove is arranged at the bottom of the base, the injection needle body comprises an outer sleeve and a baffle, the baffle is flexibly connected to the outer sleeve, the baffle is matched with the bottom of the base, rotating shafts are arranged on both sides of the baffle, and the rotating shafts are clamped with the grooves.

[0006] Preferably, the base and the inner sides of the outer sleeve are provided with internal threads, the outer side of the base is provided with external threads, and the base and the outer sleeve are threadedly connected.

[0007] Preferably, the outer cover and the baffle are made of medical plastic material.

[0008] Preferably, the baffle and the base are both circular in cross-section.

[0009] Preferably, a handle protrusion is provided on one side of the base.

[0010] Preferably, a disc is provided below the base, wherein second grooves are provided on both sides of the disc, and the rotating shaft matches the second grooves, wherein the height of the disc is 0.5-1 cm.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the outer sleeve can well shield the external needle body, and at the same time, the baffle is engaged with the groove through the rotating shafts on both sides to achieve the shielding of the lower needle body by the baffle. When in use, press down one side of the baffle, and after the baffle rotates, pull the baffle out of the base, and rotate the outer sleeve out from above the base. The device has a compact structure, is easy to use, and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the specific structure of the base of the utility model;

[0014] Figure 3 It is a bottom view of the base of the utility model.

[0015] In the figure, A, shell, 1, base, 11, groove, 2, needle body, 3, outer sleeve, 4, baffle, 41, rotating shaft, 5, handle protrusion. DETAILED DESCRIPTION

[0016] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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 a limitation on the present invention. In addition, if the terms "first", "second", and "third" are used, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0018] In the description of the present invention, it should be noted that, 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 it can be indirectly connected 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.

[0019] As shown in the figure, a safety pen-type injection needle includes an injection needle body and a shell A. The injection needle body includes a base 1 and a needle body 2. The needle body 2 is fixedly connected to the base 1. A groove 11 is provided at the bottom of the base 1. The injection needle body includes a jacket 3 and a baffle 4. The baffle 4 is flexibly connected to the jacket 3. The baffle 4 is matched with the bottom of the base 1. Rotating shafts 41 are provided on both sides of the baffle 4. The rotating shaft 41 is clamped with the groove 11, wherein the rotating shaft 41 is detachably installed in the groove 11. The rotating shaft 41 is a cylindrical structure and can rotate in the groove 11.

[0020] As a further improvement of the present invention, the base 1 and the inner sides of the outer sleeve 3 are provided with internal threads, and the outer side of the base 1 is provided with external threads. The base 1 and the outer sleeve 3 are threadedly connected, and the two are threadedly connected and matched. As an improvement of the present invention, no threads may be provided between the base 1 and the outer sleeve 3.

[0021] As a further improvement of the present invention, the outer cover 3 and the baffle 4 are made of medical plastic material.

[0022] As a further improvement of the present invention, the cross-sections of the baffle 4 and the base 1 are both circular, wherein the cross-sectional area of ​​the baffle 4 is slightly smaller than the cross-sectional area of ​​the bottom of the base 1, and the baffle 4 can be rotated around the bottom of the base 1 to facilitate removal of the baffle 4.

[0023] As a further improvement of the present invention, a handle protrusion 5 is provided on one side of the base 1 , wherein the handle protrusion 5 facilitates medical personnel to take and install the housing 1 .

[0024] As another embodiment of the utility model, a disc is provided under the base 1, wherein second grooves are provided on both sides of the disc, and the rotating shaft 41 cooperates with the second grooves, wherein the height of the disc is 1 cm, and the disc is used to cooperate with the baffle 4, wherein the disc can effectively prevent the baffle 4 from rotating too much to prevent accidental touching of the lower needle body 2.

[0025] The outer sleeve 3 of the injection needle of the utility model can well shield the external needle body 2, and at the same time, the baffle 4 is engaged with the groove 11 through the rotating shafts 41 on both sides to achieve the shielding of the lower needle body by the baffle 4. When in use, press down one side of the baffle 4, and after the baffle 4 rotates, pull the baffle 4 out of the base 1, and rotate the outer sleeve 3 out from above the base 1. The device has a compact structure, is easy to use, and is suitable for promotion.

[0026] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A safety pen-type injection needle, comprising an injection needle body and a shell, characterized in that: The injection needle body includes a base and a needle body, the needle body is fixedly connected to the base, a groove is provided at the bottom of the base, the injection needle body includes a sleeve and a baffle, the baffle and the sleeve are flexibly connected, the baffle cooperates with the bottom of the base, rotating shafts are provided on both sides of the baffle, and the rotating shafts are clamped in the groove.

2. A safety pen-type injection needle according to claim 1, characterized in that: The base and the inner side of the outer sleeve are provided with internal threads, the outer side of the base is provided with external threads, and the base and the outer sleeve are threadedly connected.

3. A safety pen-type injection needle according to claim 1, characterized in that: The outer cover and the baffle are made of medical plastic material.

4. The safety pen injection needle according to claim 1, characterized in that: The baffle and the base are both circular in cross section.

5. The safety pen injection needle according to claim 1, characterized in that: A handle protrusion is provided on one side of the base.

6. The safety pen injection needle according to claim 1, characterized in that: A disc is arranged below the base, wherein second grooves are arranged on both sides of the disc, and the rotating shaft matches with the second grooves, wherein the height of the disc is 0.5-1 cm.

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