CN210301922U

CN210301922U - Automatic injection device of disposable syringe

Info

Publication number: CN210301922U
Application number: CN201920467449.7U
Authority: CN
Inventors: 陆晓芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2020-04-14
Anticipated expiration: 2029-04-08

Abstract

The utility model discloses an automatic injection device of a disposable syringe, which comprises a hand-held shell and a trigger component arranged in the hand-held shell; trigger assembly is including locating the push pedal in the mounting hole, and the push pedal both ends embedding can be followed the mounting hole extending direction and slided in handheld shell lateral wall, and wherein one end of push pedal is equipped with the regulation latch that extends to handheld shell front end and arrange, corresponds in the handheld shell and adjusts latch limit portion and still be equipped with the pinion rack that parallels with the regulation latch. The injection plunger push rod of the disposable injector of the utility model is propped against the push plate; after the trigger knob of the trigger assembly is pressed, the latch plate is far away from the adjusting latch, so that the push plate pushes the plunger push rod of the disposable syringe to move under the elastic action of the reset spring, the smooth output of the medicament is ensured, and the convenience and the safety of the operation are improved.

Description

Automatic injection device of disposable syringe

Technical Field

The utility model relates to the technical field of medical treatment, concretely relates to disposable syringe automatic injection device.

Background

Administering a drug via a single-use syringe represents a number of risks and challenges both psychologically and physically for the user and healthcare professional. When the hypodermic injection operation is carried out, a user needs to fix the pintle with one hand and manually press the piston handle of the disposable syringe with the other hand to inject the liquid medicine, and the scheme has a plurality of defects for young children patients or dysphoria patients; if the patient is not engaged, causing the pintle tip to shift, or the user stops pressing the plunger for various sudden reasons, the injection will likewise stop; this means that if the device is not used properly (i.e. the piston is not fully pressed to its end position), the user will deliver an insufficient dose. For young children or dysphoric patients, the extension of the syringe piston ram may be too great. Thus, reaching a fully extended button can be inconvenient for the user. The combination of injection force and button extension can lead to hand trembling/shaking, which in turn increases discomfort as the inserted needle tip moves.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model discloses aim at solving one of the technical problem among the correlation technique at least to a certain extent. Therefore, the invention aims to provide an automatic injection device of a disposable syringe, which has the characteristics of convenience in operation, high safety and the like. The specific technical scheme is as follows:

an automatic injection device of a disposable syringe comprises a hand-held shell and a trigger component arranged in the hand-held shell; the front end of the handheld shell is provided with a mounting hole which is axially arranged along the handheld shell; the trigger assembly comprises a push plate arranged in a mounting hole, two ends of the push plate are embedded into the side wall of the handheld shell and can slide along the extension direction of the mounting hole, one end of the push plate is provided with an adjusting latch extending towards the front end of the handheld shell, a latch plate parallel to the adjusting latch is further arranged in the handheld shell corresponding to the edge of the adjusting latch, an elastic piece is arranged between the latch plate and the side wall of the handheld shell, the latch plate can be clamped with the adjusting latch under the elastic action of the elastic piece, and a pressing column extending outwards and penetrating through the side face of the handheld shell is arranged on the surface of the latch plate; the handheld shell corresponds push pedal both ends and still is equipped with reset spring, reset spring is located the push pedal and deviates from one side of fishback plate, reset spring can promote the push pedal and slide along mounting hole extending direction.

Among this technical scheme, disposable syringe accomplishes the ration medicament and absorbs the back, inserts disposable syringe in the mounting hole from the front end of handheld shell, triggers the subassembly and can drive disposable syringe and accomplish the ration injection, and medical personnel need not to continuously press disposable syringe, and then improves the injection security. Specifically, the push plate of the trigger assembly can slide along the mounting hole, the push plate can compress the return spring when sliding to one end far away from the disposable injector, so that the return spring continuously accumulates elastic force, the adjusting latch of the push plate can be clamped with the latch plate to avoid the rebound and return of the push plate, and after the disposable injector is inserted into the mounting hole of the handheld shell, the tail end of an injection plunger push rod of the disposable injector can abut against the push plate; the post of pressing of trigger assembly is pressing the back, and the regulation latch is kept away from to the latch board for disposable syringe's plunger push rod exports the medicament smoothly under reset spring elastic force, and at the injection in-process, injects by trigger assembly automatic drive disposable syringe, makes things convenient for medical personnel to operate, improves the convenience and the security of operation.

The preferred technical scheme, its additional technical characteristics are, the push pedal corresponds two be equipped with the spliced pole between the reset spring, the spliced pole is along handheld shell axial extension and run through handheld shell terminal surface, spliced pole end connection has the piece of drawing.

Thus, after the push plate pushes the plunger push rod of the disposable syringe to finish injection, the pull block can be pulled to enable the return spring to accumulate elastic force, so that next automatic injection can be conveniently carried out.

The preferable technical scheme is characterized in that an adjusting screw is arranged on the side wall of the mounting hole and arranged along the radial direction of the handheld shell, and the front end of the adjusting screw is provided with a supporting part which can support against the periphery of the injector.

Like this, when adjusting screw rotated, adjusting screw tip supported the portion and can supported and lean on disposable syringe periphery, improved the stability of disposable syringe installation, avoided disposable syringe to take place to drop in operation process.

The preferable technical scheme is characterized in that the adjusting screw is connected with an adjusting knob arranged on the side face of the handheld shell.

Therefore, the adjusting knob can conveniently rotate to adjust the distance between the two clamping blocks of the screw rod, is suitable for fixing disposable syringes of different specifications, and improves the application range of the device.

The preferable technical scheme is characterized in that a trigger button is arranged on the outer surface of the handheld shell and connected with the end of the pressing column, and the latch plate can be separated from the adjusting latch by pressing the trigger button.

Therefore, the trigger button is more convenient to press the pressing column, and the trigger sensitivity can be improved.

The preferred technical solution is additionally characterized in that the surface of the hand-held housing is provided with a button notch for accommodating the trigger button.

Thus, the trigger button can be movably mounted within the button slot.

The preferable technical scheme is characterized in that an anti-slip layer is further arranged on the surface of the handheld shell, and anti-slip lines are arranged on the surface of the anti-slip layer.

Therefore, the anti-slip layer is more convenient for holding the hand-held shell during injection, has higher anti-slip performance and improves the operation safety.

The utility model has the advantages that: the automatic injection device of the disposable injector can be combined with the disposable injector to carry out injection operation, and the disposable injector is automatically driven by the trigger component to carry out injection in the injection process, so that the injection amount is controllable and the injection is stable; the disposable syringe is not required to be pressed continuously in the injection process, so that the operation of medical care personnel is facilitated, the labor intensity of people is reduced, the risk of fatigue injury of people is reduced, and the disposable syringe is reasonable in structure and convenient to operate; has higher practical value and popularization value, and can be widely applied to the technical field of medical injection.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a cross-sectional view of a single use syringe automatic injection device provided in accordance with one embodiment.

Fig. 2 is a perspective view of a disposable syringe automatic injection device according to an embodiment.

Detailed Description

Here, it is to be noted that the functions, methods, and the like related to the present invention are only conventional adaptive applications of the related art. Therefore, the present invention is an improvement of the prior art, which substantially lies in the connection relationship between hardware, not in the functions and methods themselves, that is, the present invention relates to a few functions and methods, but does not include the improvements proposed in the functions and methods themselves. The present invention is described for better illustration of the function and method for better understanding of the present invention.

Referring to fig. 1 to 2, fig. 1 is a sectional view of an automatic injection device of a disposable syringe according to an embodiment; fig. 2 is a perspective view of a disposable syringe automatic injection device according to an embodiment. In fig. 1 to 2, the respective reference numerals denote the following meanings; the hand-held type electric tool comprises a hand-held shell 1, a mounting hole 101, a button notch 102, a push plate 2, a return spring 3, an adjusting latch 4, a latch plate 5, an elastic piece 6, a pressing column 7, a trigger button 8, a connecting column 9, a pull block 10 and an adjusting knob 11.

As shown in fig. 1 and 2, in one embodiment, the present invention provides a disposable automatic injector injection device, which comprises a hand-held housing 1 and a trigger assembly disposed in the hand-held housing 1; handheld 1 front end of shell is equipped with along the mounting hole 101 of handheld 1 axial arrangement of shell, and disposable syringe accomplishes the ration medicament and absorbs the back, inserts disposable syringe from the front end of handheld shell 1 in mounting hole 101, and the trigger subassembly can drive disposable syringe and accomplish the injection, and medical personnel need not to continuously press disposable syringe, improves the injection security.

As shown in fig. 1 and 2, the trigger assembly includes a push plate 2 disposed in the mounting hole 101, two ends of the push plate 2 are embedded in a side wall of the handheld housing 1 and can slide along an extending direction of the mounting hole 101, one end of the push plate 2 is provided with an adjusting latch 4 extending to the front end of the handheld housing 1, a latch plate 5 parallel to the adjusting latch 4 is further disposed at a portion of the handheld housing 1 corresponding to the adjusting latch 4, an elastic member 6 is disposed between the latch plate 5 and the side wall of the handheld housing 1, the latch plate 5 can be engaged with the adjusting latch 4 under an elastic force of the elastic member 6, and a pressing column 7 extending outward and penetrating through a side surface of the handheld housing 1 is disposed on a surface of the latch plate 5; handheld shell 1 corresponds push pedal 2 both ends and still is equipped with reset spring 3, reset spring 3 is located one side that push pedal 2 deviates from the fishback plate bar 5, reset spring 3 can promote push pedal 2 and slide along mounting hole 101 extending direction. The push plate 2 of the trigger assembly can slide along the mounting hole 101, the push plate 2 can compress the reset spring 3 when sliding to one end far away from the disposable injector, so that the reset spring 3 continuously accumulates elastic force, the adjusting latch 4 of the push plate 2 can be clamped with the latch plate 5 to avoid the push plate 2 from rebounding and returning, and after the disposable injector is inserted into the mounting hole 101 of the handheld shell 1, the tail end of an injection plunger push rod of the disposable injector can abut against the push plate 2; trigger the subassembly press the post 7 after pressing, regulation latch 4 is kept away from to latch board 5 for disposable syringe's plunger push rod exports the medicament smoothly under reset spring elastic force, at the injection in-process, inject by triggering subassembly automatic drive disposable syringe, make things convenient for medical personnel to operate, improve the convenience and the security of operation, in this embodiment, disposable syringe adopts 1 ml's quantitative syringe, 1ml can quantitative injection at every injection under the drive of trigger subassembly.

As shown in fig. 1 and 2, in order to facilitate the next injection operation after the injection is completed, a connection column 9 is arranged between the push plate 2 and the two return springs 3, the connection column 9 extends axially along the handheld housing 1 and penetrates through the rear end face of the handheld housing 1, and a pull block 10 is connected to the end of the connection column 9. After the push plate 2 pushes a plunger push rod of the disposable syringe to finish injection, the pull block 10 can be pulled to enable the reset spring 3 to accumulate elastic force, so that next automatic injection is conveniently carried out.

As shown in fig. 1 and 2, in order to prevent the disposable syringe from sliding out of the mounting hole 101 after being inserted into the hand-held housing 1, the present embodiment is provided with an adjusting screw on the side wall of the mounting hole 101, the adjusting screw is arranged along the radial direction of the hand-held housing 1, and the front end of the adjusting screw is provided with an abutting part which can abut on the periphery of the syringe. When adjusting screw rotated, the portion of leaning on of adjusting screw tip can support and lean on disposable syringe periphery, improved the stability of disposable syringe installation, avoided disposable syringe to take place to drop in operation process.

As shown in fig. 1 and 2, the adjusting screw is connected with an adjusting knob 11 disposed on the side surface of the hand-held housing 1. The adjusting knob 11 can conveniently rotate the distance between the two clamping blocks of the adjusting screw rod, is suitable for fixing disposable syringes of different specifications, and improves the application range of the device.

As shown in fig. 1 and 2, the outer surface of the hand-held housing 1 is provided with a trigger button 8, the trigger button 8 is connected with the end of the pressing column 7, and the clamping plate 5 can be separated from the adjusting clamping tooth 4 by pressing the trigger button 8. The trigger button 8 is more convenient to press the pressing column 7, and the trigger sensitivity can be improved. To mount the trigger button, a button notch 102 is provided in the surface of the hand-held housing 1 to receive the trigger button 8. The trigger button 102 is movably mounted within the button slot.

As shown in fig. 1 and 2, the surface of the handheld housing 1 is further provided with an anti-slip layer, and the surface of the anti-slip layer is provided with anti-slip lines. The anti-slip layer is more convenient to hold the handheld shell 1 during injection, has higher anti-slip performance, improves the operation safety, and the anti-slip layer is preferably made of silica gel, has excellent holding feeling.

In the specification of the present invention, a large number of specific details are explained. It can be understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, system, 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, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, systems, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art will be able to combine and combine various embodiments or examples and features of various embodiments or examples described in this specification without undue conflict.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments can be modified, or some or all of the technical features can be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. An automatic injection device of a disposable syringe, which is characterized in that: comprises a hand-held shell (1) and a trigger component arranged in the hand-held shell (1); the front end of the handheld shell (1) is provided with a mounting hole (101) which is axially arranged along the handheld shell (1);

the trigger assembly comprises a push plate (2) arranged in a mounting hole (101), two ends of the push plate (2) are embedded into the side wall of the handheld shell (1) and can slide along the extension direction of the mounting hole (101), one end of the push plate (2) is provided with an adjusting latch (4) extending towards the front end of the handheld shell (1), a clamping toothed plate (5) parallel to the adjusting latch (4) is further arranged at the edge part of the adjusting latch (4) in the handheld shell (1), an elastic piece (6) is arranged between the clamping toothed plate (5) and the side wall of the handheld shell (1), the clamping toothed plate (5) can be clamped with the adjusting latch (4) under the elastic action of the elastic piece (6), and a pressing column (7) extending outwards and penetrating through the side face of the handheld shell (1) is arranged on the surface of the clamping toothed plate (5); handheld shell (1) corresponds push pedal (2) both ends and still is equipped with reset spring (3), reset spring (3) are located one side that push pedal (2) deviate from fishback (5), reset spring (3) can promote push pedal (2) and slide along mounting hole (101) extending direction.

2. The single use syringe automatic injection device of claim 1, wherein:

push pedal (2) correspond two be equipped with spliced pole (9) between reset spring (3), spliced pole (9) are along handheld shell (1) axial extension and run through handheld shell (1) terminal surface, spliced pole (9) end connection has draws piece (10).

3. The single use syringe automatic injection device of claim 1, wherein:

the side wall of the mounting hole (101) is provided with an adjusting screw, the adjusting screw is radially arranged along the handheld shell (1), the front end of the adjusting screw is provided with a supporting part, and the supporting part can be supported on the periphery of the injector.

4. A single-use syringe automatic injection device according to claim 3, characterized in that:

the adjusting screw is connected with an adjusting knob (11) arranged on the side surface of the handheld shell (1).

5. The single use syringe automatic injection device of claim 1, wherein:

handheld shell (1) surface is equipped with trigger button (8), trigger button (8) with press post (7) tip and link to each other, press trigger button (8) can make the pinion rack (5) with adjust latch (4) phase separation.

6. The single use syringe automatic injection device of claim 5, wherein:

the surface of the hand-held shell (1) is provided with a button notch (102) for accommodating a trigger button.

7. The single use syringe automatic injection device of claim 1, wherein:

the surface of the handheld shell (1) is also provided with an anti-skid layer, and anti-skid lines are arranged on the surface of the anti-skid layer.