CN218356874U

CN218356874U - Novel insulin injection device

Info

Publication number: CN218356874U
Application number: CN202123127773.0U
Authority: CN
Inventors: 李明霞; 尹洁; 蔡亚萍
Original assignee: Northern Jiangsu Peoples Hospital
Current assignee: Northern Jiangsu Peoples Hospital
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2023-01-24
Anticipated expiration: 2031-12-13

Abstract

The utility model relates to a novel insulin injection device, which comprises an injection shell, an injection core, an injection needle head, an extension mechanism and a pressing mechanism, wherein one end of the injection needle head is supported and connected with the injection core, the injection shell is sheathed on the injection core and the injection needle head, the injection shell comprises an injection pen cap and an injection core frame, and the inner wall of the middle section of the injection core frame is provided with a locking groove; the inside of the syringe needle is provided with a through hole; the pressing mechanism comprises a side pressing key, a core protecting pipe and a clamping part, the side pressing key is arranged in a locking groove at the middle section of the injection core frame, the clamping part and the core protecting pipe are both positioned in the injection shell, and one end of the clamping part extending out of the mechanism is inserted into the injection core; the utility model has high injection efficiency by using the telescopic syringe needle, and controllable injection amount and convenient operation.

Description

Novel insulin injection device

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to novel insulin injection device.

Background

The injection of insulin is the most effective way to control blood sugar, and can replace the secretion of insulin in human pancreas, so that the blood sugar reaches the ideal regulation level under the similar physiological state; the insulin injection device injects insulin to the subcutaneous part of a user according to the dosage required by a human body, the blood sugar is kept stable all day long, so that diabetes can be controlled, and the risk of needle stick injury exists when a nurse separates a needle after injecting insulin clinically.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving the technical problem in the medical instrument insulin injection to a certain extent at least. Therefore, the utility model provides a novel insulin injection device.

The utility model provides a technical scheme that its technical problem adopted is: a novel insulin injection device comprises an injection shell, an injection core, an injection needle, an extension mechanism and a pressing mechanism; one end of the injection needle head is in supporting connection with the injection core, the injection shell is sleeved on the injection core and the injection needle head and comprises an injection pen cap and an injection core frame, and a locking groove is formed in the inner wall of the middle section of the injection core frame; the injection needle head is internally provided with a through hole; the pressing mechanism is arranged in the middle section of the injection core frame; the pressing mechanism comprises a side pressing key, a core protection tube and a clamping part, the side pressing key is arranged in a locking groove in the middle section of the injection core frame, the clamping part and the core protection tube are both positioned in the injection shell, one end of the extending mechanism is connected with the injection core in an inserting mode, the tail end of the extending mechanism is connected with the injection push key, and the injection needle head is connected with the injection core in a replaceable mode.

In a preferred embodiment of the present invention, the extension mechanism comprises a needle spring, a plunger spring, and a spring seat; the needle spring is connected between the injection needle and the pressing mechanism, the needle spring is wrapped outside the injection core close to the injection needle, the injection core spring is arranged inside the rear section of the injection core, one end of the injection core spring is connected with the inner end face of the injection push key, and the injection core spring is connected with the injection core frame; the injection needle penetrates the inside of the needle spring and is fixed by the injection core holder protrusion.

In a preferred embodiment of the present invention, a rear portion of a core-protecting tube on the pressing mechanism extends into the injection casing, and the core-protecting tube can extend and retract relative to the injection casing; the clamping component is sleeved on the injection core, and the front injection needle of the injection core can extend out of the core protection tube and is exposed.

In a preferred embodiment of the present invention, the position-limiting component is rotatably sleeved with the core-protecting tube, a position-limiting slot is provided on a contact surface between an outer surface of the position-limiting component and the injection casing, and a position-limiting block is further provided inside the position-limiting slot; the injection device is characterized in that clamping part bulges are arranged on the inner side wall of the injection shell and are respectively accommodated on the corresponding clamping parts.

In a preferred embodiment of the present invention, the rear diameter of the core protection tube is the same as the outer diameter of the locking member.

In a preferred embodiment of the present invention, the injection casing is provided with a hole for observing the residual amount of insulin in the injection core.

Compared with the prior art, the beneficial effects of the utility model are that: after the structure is adopted, the insulin injection pen is convenient to use, and compared with the traditional insulin injection meter which needs to sleeve the needle cap again and separate the needle after injection, the insulin injection pen can eject the needle by one key, thereby avoiding the secondary separation of the needle and reducing the needle puncture injury; the injection needle is disposable; the utility model discloses use the syringe needle to reduce the acupuncture and hinder and convenient operation.

Drawings

FIG. 1 is a perspective view of the present invention;

fig. 2 is a schematic side view of the present invention;

in the figure: 1. the injection pen comprises an injection shell, 2 parts of an injection core, 3 parts of an injection needle, 4 parts of an extending mechanism, 5 parts of a pressing mechanism, 6 parts of an injection pen cap, 7 parts of an injection core frame, 8 parts of a locking groove, 9 parts of a strip hole, 10 parts of a side pressing key, 11 parts of a core protecting tube, 12 parts of a clamping part, 13 parts of an injection pushing key, 14 parts of a needle spring, 15 parts of an injection core spring, 16 parts of a spring seat, 17 parts of a limiting clamping groove, 18 parts of a limiting block, 19 parts of a clamping piece protrusion.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1 and fig. 2, a novel insulin injection device comprises an injection shell 1, an injection core 2, an injection needle 3, an extending mechanism 4 and a pressing mechanism 5; one end of the injection needle 3 is supported and connected with the injection core 2, the injection shell 1 is sleeved on the injection core 2 and the injection needle 3, the injection shell 1 comprises an injection pen cap 6 and an injection core frame 7, and a locking groove 8 is arranged on the inner wall of the middle section of the injection core frame 7; the injection needle head 3 is internally provided with a through hole; the pressing mechanism 5 is arranged in the middle section of the injection core frame 7; the pressing mechanism 5 comprises a side pressing key 10, a core protection tube 11 and a clamping part 12, the side pressing key 10 is arranged in a locking groove 8 in the middle section of the injection core frame 7, the clamping part 12 and the core protection tube 11 are both positioned in the injection shell 1, one end of the extending mechanism 4 is inserted into the injection core 2, the tail end of the extending mechanism 4 is connected with an injection push key 13, and the injection needle 3 is connected with the injection core 2 in a replaceable manner.

The extension mechanism 4 comprises a needle spring 14, a core spring 15 and a spring seat 16; the needle spring 14 is connected between the injection needle 3 and the pressing mechanism 5; the needle spring 14 is wrapped on the injection core 2 and is close to the injection needle 3, the injection core spring 15 is arranged at the rear section of the injection core 2, one end of the injection core spring 15 is connected with the inner end surface of the injection push key 13, and the injection core spring 15 is connected with the injection core frame 7; the injection needle 3 penetrates the inside of the needle spring 14 and is held by the projection of the injection core holder 7.

The rear part of a core protection tube 11 on the pressing mechanism 5 extends into the injection shell 1, and the core protection tube 11 can stretch relative to the injection shell 1; the blocking part 12 is sleeved on the injection core 2; the front needle 3 of the injection core 2 can be extended and exposed in the core tube 11.

The clamping part 12 is rotatably sleeved with the core protection tube 11, a limiting clamping groove 17 is arranged on the contact surface of the outer surface of the clamping part 12 and the injection shell 1, and a limiting block 18 is further arranged inside the limiting clamping groove 17; the inner side wall of the injection housing 1 is provided with a clamping piece bulge 19, and the clamping piece bulge 19 is respectively accommodated on the corresponding clamping part 12.

The diameter of the back part of the core protection tube 11 is the same as the outer diameter of the clamping part 12.

The injection shell 1 is provided with a strip hole 20, and the strip hole 9 is used for observing the insulin residual quantity in the injection core 2.

The working principle is as follows: when the insulin injection is not used, the clamping part 12 is abutted with the clamping part bulge 19 corresponding to the clamping part 12; the clamping part 12 slides along the periphery of the limiting block 18 on the limiting clamping groove 17 and cannot be separated, the pressing mechanism 5 is driven, namely the core protection tube 11 extends out of the injection shell 1, the clamping part bulge 19 is separated from the limiting clamping groove 17, the axial approach of the core protection tube 14 and the injection shell 1 is completed, and the core protection tube 11 drives the injection core 2 to axially separate from the injection needle 3 and the injection shell 1 and return to an extending position; the injection needle 3 can be replaced after use.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention is to be determined by the appended claims.

Claims

1. The utility model provides a novel insulin injection device, includes injection shell, injection core, syringe needle, stretches out mechanism and pressing means, its characterized in that: one end of the injection needle head is in supporting connection with the injection core, the injection shell is sleeved on the injection core and the injection needle head and comprises an injection pen cap and an injection core frame, and a locking groove is formed in the inner wall of the middle section of the injection core frame; the injection needle head is internally provided with a through hole; the pressing mechanism is arranged in the middle section of the injection core frame; the pressing mechanism comprises a side pressing key, a core protection tube and a clamping part, the side pressing key is arranged in a locking groove in the middle section of the injection core frame, the clamping part and the core protection tube are both positioned in the injection shell, one end of the extending mechanism is connected with the injection core in an inserting mode, the tail end of the extending mechanism is connected with the injection push key, and the injection needle head is connected with the injection core in a replaceable mode.

2. The novel insulin injection device according to claim 1, wherein: the extending mechanism comprises a needle spring, an injection core spring and a spring seat; the needle spring is connected between the injection needle and the pressing mechanism; the injection core spring is wrapped outside the injection core close to the injection needle, the injection core spring is arranged inside the rear section of the injection core, one end of the injection core spring is connected with the inner end face of the injection push key, and the injection core spring is connected with the injection core frame; the needle extends through the interior of the needle spring and is held in place by the plunger holder protrusion.

3. The novel insulin injection device according to claim 1, wherein: the rear part of an upper core protection pipe of the pressing mechanism extends into the injection shell, and the core protection pipe can stretch relative to the injection shell; the clamping component is sleeved on the injection core; the front syringe needle of the injection core can extend out and expose out of the core protection tube.

4. The novel insulin injection device according to claim 1, wherein: the clamping part is rotatably sleeved with the core protection pipe, a limiting clamping groove is formed in the contact surface of the outer surface of the clamping part and the injection shell, and a limiting block is further arranged in the limiting clamping groove; the injection device is characterized in that clamping part bulges are arranged on the inner side wall of the injection shell and are respectively accommodated on the corresponding clamping parts.

5. The novel insulin injection device according to claim 4, wherein: the diameter of the rear part of the core protection pipe is the same as the outer diameter of the clamping part.

6. The novel insulin injection device according to claim 1, wherein: and a strip hole is formed in the injection shell and used for observing the residual amount of insulin in the injection core.