CN211050515U

CN211050515U - Insulin injection pen with quick-detachable needle

Info

Publication number: CN211050515U
Application number: CN201921873414.XU
Authority: CN
Inventors: 陈锋
Original assignee: Suzhou Yaokang Medical Technology Co ltd
Current assignee: Suzhou Yaokang Medical Technology Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-07-21
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses a needle quick-dismantling type insulin injection pen, which comprises a pen body, a pen cap, a needle seat and a needle; the outer side of the bottom of the pen cap is provided with a polygonal groove, the center of the bottom of the pen cap is provided with a needle hole, and the needle hole penetrates through the bottom of the pen cap and is communicated with the polygonal groove; the end part of the pen body is provided with a connecting column, and the outer wall of the connecting column is provided with external threads; the section of the needle base is polygonal and matched with the polygonal groove, the needle head is fixed in the center of the front end of the needle base, the rear end of the needle base is provided with a thread groove for connecting the connecting column, and an internal thread matched with an external thread on the outer wall of the connecting column is arranged in the thread groove. The utility model relates to a syringe needle quick detach formula insulin injection pen, simple structure can realize the quick dismantlement of syringe needle.

Description

Insulin injection pen with quick-detachable needle

Technical Field

The utility model relates to a syringe needle quick detach formula insulin injection pen.

Background

The needle head of the existing insulin injection pen is mostly integrated with the pen body, and the needle head can not be replaced after being broken. And to the syringe needle that can change, the condition that often meets is that syringe needle and body of a writing brush are fixed too tightly, and difficult dismantlement, or screw up the benefit after changing the syringe needle, easy weeping.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a syringe needle quick detach formula insulin injection pen, aim at solving above-mentioned problem.

In order to achieve the purpose, the technical scheme of the utility model is to design a syringe needle quick-release type insulin injection pen, which comprises a pen body, a pen cap, a needle seat and a syringe needle; the outer side of the bottom of the pen cap is provided with a polygonal groove, the center of the bottom of the pen cap is provided with a needle hole, and the needle hole penetrates through the bottom of the pen cap and is communicated with the polygonal groove; the end part of the pen body is provided with a connecting column, and the outer wall of the connecting column is provided with external threads; the section of the needle base is polygonal and matched with the polygonal groove, the needle head is fixed in the center of the front end of the needle base, the rear end of the needle base is provided with a thread groove for connecting the connecting column, and an internal thread matched with an external thread on the outer wall of the connecting column is arranged in the thread groove.

Preferably, the cross sections of the polygonal groove and the needle seat are pentagonal or hexagonal.

When the pen cap is used, the pen cap is pulled down, then the pen cap is turned over, the needle base is embedded into the polygonal groove, and the needle base can be screwed off from the pen body by rotating the pen cap. When the pen cap is installed, the needle base is placed into the polygonal groove of the pen cap, and the pen cap is rotated reversely, so that the needle base is in threaded connection with the connecting column.

The utility model has the advantages and the beneficial effects that: the utility model relates to a syringe needle quick detach formula insulin injection pen, simple structure can realize the quick dismantlement of syringe needle.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the pen cap of the present invention when cut open.

Fig. 3 is a schematic view of the pen cap of the present invention when inverted for disassembling the needle.

Wherein, the pen body 1, the pen cap 2, the needle base 3, the needle 4, the needle hole 2-1, the polygonal groove 2-2 and the connecting column 5.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example (b):

An insulin injection pen with a quick-release needle comprises a pen body 1, a pen cap 2, a needle base 3 and a needle 4; the outer side of the bottom of the pen cap 2 is provided with a polygonal groove 2-2, the center of the bottom of the pen cap 2 is provided with a pinhole 2-1, and the pinhole 2-1 penetrates through the bottom of the pen cap 2 and is communicated with the polygonal groove 2-2; the end part of the pen body 1 is provided with a connecting column 5, and the outer wall of the connecting column 5 is provided with an external thread; the section of the needle base 3 is polygonal and is matched with the polygonal groove 2-2-, the needle 4 is fixed in the center of the front end of the needle base 3, the rear end of the needle base 3 is provided with a thread groove for connecting the connecting column 5, and the thread groove is internally provided with an internal thread matched with the external thread on the outer wall of the connecting column 5.

The cross sections of the polygonal groove 2-2 and the needle seat 3 are pentagonal or hexagonal.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a syringe needle quick detach formula insulin injection pen which characterized in that: comprises a pen body, a pen cap, a needle seat and a needle head; the outer side of the bottom of the pen cap is provided with a polygonal groove, the center of the bottom of the pen cap is provided with a needle hole, and the needle hole penetrates through the bottom of the pen cap and is communicated with the polygonal groove; the end part of the pen body is provided with a connecting column, and the outer wall of the connecting column is provided with external threads; the section of the needle base is polygonal and matched with the polygonal groove, the needle head is fixed in the center of the front end of the needle base, the rear end of the needle base is provided with a thread groove for connecting the connecting column, and an internal thread matched with an external thread on the outer wall of the connecting column is arranged in the thread groove.

2. The insulin injection pen with the quickly disassembled needle head as claimed in claim 1, wherein: the cross sections of the polygonal groove and the needle seat are pentagonal or hexagonal.