CN213284982U

CN213284982U - Automatic injector power device suitable for high-viscosity medicine

Info

Publication number: CN213284982U
Application number: CN202021318478.6U
Authority: CN
Inventors: 舒乐
Original assignee: Suzhou Jiashu Medical Technology Co ltd
Current assignee: Suzhou Jiashu Medical Technology Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-05-28
Anticipated expiration: 2030-07-07

Abstract

The utility model relates to an automatic syringe power device suitable for high viscosity medicine, including bearing the base, be provided with the carrier ring on bearing the base, the threaded connection groove has been seted up to the periphery of carrier ring, and the carrier ring upper end distributes and gathers together and enclose fender mechanism, gathers together and encloses to keep off and has seted up the assistance-localization real-time structure in the mechanism, and the central point that bears the base puts the department and is provided with the linking rod. From this, power device and shell can adopt threaded connection, realize comparatively firm combination, have the connection combination strength of preferred again, avoid traditional buckle structure because combine the defect that the strength is not enough and cause the pine to take off, and the assembly is comparatively convenient. The whole structure is compact, the external stress caused by high-viscosity medicine during use can be met, and smooth injection is ensured. The combination stability is good, the assembly requirements of various conventional automatic injectors at present can be met, and the universality is good. Simple structure, easy manufacture and implementation.

Description

Automatic injector power device suitable for high-viscosity medicine

Technical Field

The utility model relates to an injector power device, in particular to an automatic injector power device suitable for high-viscosity medicines.

Background

AI injectors, also known as autoinjectors, rely on the force of a compressed spring to rebound to advance a liquid injection during an injection procedure. However, during actual use, the force of the spring acts not only on the PFS, but also on the power plant itself. Therefore, once the force of the buckle is not enough to fix the power device, the whole power device can be ejected out, and the AI is damaged. During the use, for injecting high-viscosity medicine, the force of the buckle is not enough to effectively connect and fix the power device and the pen body during injection, and the AI is easy to damage and even hurt the human body.

In view of the above-mentioned drawbacks, the present inventors have made active research and innovation to create an automatic injector power device suitable for high viscosity drugs, which has industrial utility value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing an autoinjector power device suitable for high viscosity medicine.

The utility model discloses an autoinjector power device suitable for high viscosity medicine, including bearing the base, wherein: the bearing base is provided with a bearing ring, a threaded connecting groove is formed in the periphery of the bearing ring, a gathering and surrounding blocking mechanism is distributed at the upper end of the bearing ring, an auxiliary positioning structure is arranged on the gathering and surrounding blocking mechanism, and a connecting rod is arranged at the center of the bearing base.

Further, the automatic injector power device for high viscosity medicine mentioned above, wherein the carrier ring is of a right circular configuration, and the wall thickness of the carrier ring is 2 to 4 mm.

Further, the power device of the automatic injector suitable for the high viscosity medicine is characterized in that the gathering and blocking mechanism is of an inward gathering wall-shaped structure, and the inward gathering angle of the inward gathering wall-shaped structure is 10-30 degrees.

Furthermore, the automatic injector power device suitable for the high viscosity medicine is characterized in that the auxiliary positioning structure is a hollow caulking groove, and the hollow caulking groove is a rectangular groove; or, the hollow caulking groove is an elliptical groove.

Still further, the above automatic injector power unit for high viscosity medicine, wherein the engaging rod is a tapered rod, and the thicker end of the tapered rod is connected to the carrying base.

Still further, the power device for an automatic injector suitable for high viscosity drugs, wherein the bearing base is a circular base, and the thickness of the circular base is 2 to 3 mm.

Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:

1. the power device and the shell can be connected in a threaded mode, so that stable combination is realized, better connection combination force is provided, the defect that the traditional buckle structure is loosened due to insufficient combination force is avoided, and the assembly is more convenient.

2. The whole structure is compact, the external stress caused by high-viscosity medicine during use can be met, and smooth injection is ensured.

3. The combination stability is good, the assembly requirements of various conventional automatic injectors at present can be met, and the universality is good.

4. Simple structure, easy manufacture and implementation.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Figure 1 is a schematic front view of an automatic injector power plant suitable for high viscosity drugs.

Figure 2 is a side view schematic of an automatic injector power plant suitable for high viscosity drugs.

The meanings of the reference symbols in the drawings are as follows.

1 carrying base 2 carrying ring

3 screw thread connecting groove 4 gathers together and encloses fender mechanism

5 hollow caulking groove of connecting rod 6

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The automatic injector power device suitable for high viscosity medicine as shown in fig. 1 and fig. 2 comprises a bearing base 1, which is distinguished in that: the bearing base 1 is provided with a bearing ring 2 which is convenient for realizing contact combination with the shell of the automatic injector during subsequent assembly. The utility model discloses threaded connection groove 3 has been seted up at the periphery of carrier ring 2, is provided with corresponding screw thread in the shell, can make whole power device realize threaded connection with the shell. Therefore, the defect that the bearing ring 2 is separated from the shell due to viscous force when a high-viscosity medicine is pushed can be avoided, and the integral combination firmness is ensured. Meanwhile, in order to meet the requirement of pushing and applying force of the high-viscosity medicine, the gathering and surrounding mechanism 4 is distributed at the upper end of the bearing ring 2. Considering that other subassemblies in follow-up assembly period combine, in order to satisfy quick, stable assembly needs, have seted up the assistance-localization real-time structure on gathering up fender mechanism 4. Furthermore, in order to match the operation of the subsequent drug delivery mechanism and meet the requirement of the delivery and propulsion of high-viscosity drugs, an engagement rod 5 is arranged at the central position of the bearing base 1.

In view of the preferred embodiment of the present invention, in order to ensure smooth docking with the conventional shaped housing and to ensure stable coupling, the adopted carrier ring 2 is of a regular circular ring structure, and the wall thickness of the carrier ring 2 is 2 to 4 mm. Therefore, unnecessary deformation cannot occur locally when the viscous force is received to move forward, and the service life is prolonged.

Further, to effectively withstand external stresses from the syringe and high viscosity medication during use, the gathering enclosure 4 is of an inwardly-converging wall-like configuration having an inwardly-converging angle of 10 to 30 degrees. And simultaneously, the utility model discloses an auxiliary positioning structure be cavity caulking groove 6, for the buckle connection needs of other constructions in the cooperation casing, be convenient for these buckles even go into cavity caulking groove 6, optional use rectangular channel constitutes cavity caulking groove 6. Of course, for some special structure buckles, in order to avoid the occurrence of slipping, the structure of the oval groove can also be adopted.

Still further, considering that the bottom of the connecting rod 5 is stressed greatly during normal use, and in order to avoid unnecessary deformation, the lifting and the use are safe, the connecting rod 5 is a conical rod, and the thicker end of the conical rod is connected with the bearing base 1. In addition, in order to realize smooth propulsion under the coordination of other components, the bearing base 1 can effectively push the connected shell, the bearing base 1 is a circular base, and the thickness of the circular base is 2-3 mm. Therefore, the air tightness is ensured, meanwhile, no burr structure exists, the traveling resistance is reduced, and the injection requirement of high-viscosity medicines is better met.

It should be noted that during the actual manufacturing process, the dimensions and specifications of the thread in the thread connecting groove 3 can be adjusted according to actual requirements, so as to satisfy the tight combination therebetween, and the detailed description is omitted here.

Through foretell expression of characters and combination of the attached drawing can be seen, adopt the utility model discloses afterwards, possess following advantage:

4. Simple structure, easy manufacture and implementation.

Furthermore, the indication directions or positional relationships described in the present invention are directions or positional relationships based on the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the indicated device or structure must have a specific direction or operate in a specific directional configuration, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "disposed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other or mutually interacted. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. And it may be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or component so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. An autoinjector power device suitable for high viscosity medicine, including bearing base (1), its characterized in that: the bearing base is characterized in that a bearing ring (2) is arranged on the bearing base (1), a threaded connecting groove (3) is formed in the periphery of the bearing ring (2), a gathering and enclosing mechanism (4) is distributed at the upper end of the bearing ring (2), an auxiliary positioning structure is formed in the gathering and enclosing mechanism (4), and a connecting rod (5) is arranged at the central position of the bearing base (1).

2. An automatic injector power plant suitable for high viscosity drugs, according to claim 1, characterized in that: the bearing ring (2) is of a right circular ring structure, and the wall thickness of the bearing ring (2) is 2-4 mm.

3. An automatic injector power plant suitable for high viscosity drugs, according to claim 1, characterized in that: the gathering and enclosing mechanism (4) is of an inward gathering wall-shaped structure, and the inward gathering angle of the inward gathering wall-shaped structure is 10-30 degrees.

4. An automatic injector power plant suitable for high viscosity drugs, according to claim 1, characterized in that: the auxiliary positioning structure is a hollow caulking groove (6), and the hollow caulking groove (6) is a rectangular groove; or the hollow caulking groove (6) is an elliptical groove.

5. An automatic injector power plant suitable for high viscosity drugs, according to claim 1, characterized in that: the connecting rod (5) is a conical rod, and the thicker end of the conical rod is connected with the bearing base (1).

6. An automatic injector power plant suitable for high viscosity drugs, according to claim 1, characterized in that: the bearing base (1) is a circular base, and the thickness of the circular base is 2-3 mm.