CN210933172U

CN210933172U - Automatic injection device of disposable medical syringe

Info

Publication number: CN210933172U
Application number: CN201921380530.8U
Authority: CN
Inventors: 杜风
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-07-07
Anticipated expiration: 2029-08-23

Abstract

The utility model discloses an automatic injection device of a disposable medical injector, which comprises a handheld shell which can be embedded with the disposable injector and a trigger component which is arranged in the shell; the side surface of the handheld shell is provided with accommodating grooves which are arranged along the extending direction of the handheld shell; the trigger assembly comprises a push plate which is arranged in the accommodating groove and can slide along the accommodating groove; the two sides of the push plate are provided with sliding columns which are parallel to the containing groove, and the push rod of the injection plunger of the disposable injector of the utility model is propped against the push plate; after the pressing column of the trigger assembly presses, the latch plate is far away from the adjusting latch, so that the plunger push rod pushes the disposable syringe plunger push rod to move under the action of the elastic force of the pushing 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 medical syringe

Technical Field

The utility model relates to the field of medical technology, concretely relates to disposable medical 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. The user must manually depress the plunger rod of the disposable syringe to actuate the fluid medicament delivery needle. During injection, the user must continuously depress the plunger push rod. This solution has a number of drawbacks for the user. If the user stops pressing on the plunger push rod, the injection will likewise stop. This means that if the device is not used properly (i.e. the plunger is not fully depressed to its end position), the user will deliver an insufficient dose. The injection force may be too high for the user, especially if the patient is old or has flexibility problems. The extension of the plunger rod 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 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 medical injector, 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 medical injector comprises a handheld shell which can be embedded with the disposable injector and a trigger component which is arranged in the shell; the side surface of the handheld shell is provided with an accommodating groove arranged along the extending direction of the handheld shell, the end part of the handheld shell is provided with an installation notch communicated with the accommodating groove, and the width of the installation notch is smaller than that of the accommodating groove; the trigger assembly comprises a push plate which is arranged in the accommodating groove and can slide along the accommodating groove; sliding columns parallel to the accommodating grooves are arranged on two sides of the push plate, and pushing springs are sleeved on the sliding columns; a clamping tooth plate is arranged below the corresponding sliding column in the handheld shell, and clamping teeth are arranged on the surface of the caliper plate opposite to the sliding column; the tail end of the sliding column is provided with an adjusting clamping tooth part extending to the surface of the clamping tooth plate; the utility model discloses a portable electronic device, including shell, regulation latch portion, pressing post, reset spring, fixed shell, the surface of latch portion meshing still is equipped with presses the post, press to move the cover on the post and have reset spring, and reset spring's one end is fixed on handheld shell, the other end is fixed on pressing the post, can make latch portion and regulation latch portion meshing under reset spring's spring action, when pushing down and pressing the post, the latch portion phase separation can with the regulation latch portion.

Among this technical scheme, disposable syringe can the embeddable on handheld shell, and the trigger assembly can inject the medicament in the disposable syringe, and medical personnel need not to continuously press disposable syringe and inject. The disposable injector is embedded into a containing groove of the handheld shell, an injection plunger push rod of the disposable injector is abutted against a push plate, the push plate can slide along the containing groove, when the push plate slides to one end far away from the disposable injector, a pushing spring sleeved on sliding columns at two sides of the push plate can compress and accumulate elastic force, an adjusting latch at the tail end of the sliding column can be clamped with a latch plate to avoid rebound and return of the push plate, the moving distance of the push plate is the same as that of the injection plunger push rod of the disposable injector, and a certain amount of medicament is absorbed into the disposable injector; the back is being pressed to the post of pressing of trigger assembly, and the regulation latch is kept away from to the latch board for the plunger push rod promotes disposable syringe plunger push rod and removes under the effect of promotion spring elasticity, ensures that the medicament exports smoothly, and at the injection in-process, injects by the disposable syringe of trigger assembly automatic drive, makes things convenient for medical personnel to operate, improves the convenience and the security of operation.

The preferred technical scheme, its additional technical feature is, holding tank both sides wall corresponds and is equipped with the grip block between installation breach and the push pedal, and the relative surface of two grip blocks is equipped with the clamping part that suits with disposable syringe periphery, the grip block spiro union has the adjusting screw who rotates to locate in handheld shell, works as the interval between two grip blocks can be adjusted when adjusting screw rotates.

Like this, two grip blocks can play the effect of centre gripping disposable syringe, improve the stability that disposable syringe inlayed and adorn, avoid disposable syringe to take place to drop in operation process.

The preferable technical scheme is characterized in that the end part of the adjusting screw rod penetrates through the outer side surface of the handheld shell, and the tail end of the adjusting screw rod is provided with an adjusting knob.

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

The preferable technical scheme is characterized in that a pair of L-shaped clamping grooves which are oppositely arranged are formed in the surface, deviating from the sliding column, of the push plate, and the clamping grooves can be matched with the tail end of a push rod of a plunger piston of a disposable syringe in a clamping mode.

Therefore, the end part of the plunger push rod of the disposable syringe embedded into the handheld shell can be clamped into the clamping groove of the push plate, so that the plunger push rod of the disposable syringe can move along with the push plate, and the plunger push rod is conveniently driven to move when in use.

The technical scheme is that the novel disposable syringe holding groove is characterized in that rear abutting parts which are oppositely arranged are further arranged on two side walls of the holding groove, the rear abutting parts are located between the clamping block and the push plate, and the rear end of the disposable syringe which is embedded in the holding groove can abut against the rear abutting parts.

Like this, disposable syringe front end can lean on in the front and lean on the portion, can provide the fulcrum for disposable syringe injection, avoids the handheld shell of disposable syringe roll-off, improves safety in utilization.

The technical scheme is that the back abutting parts are oppositely arranged on two side walls of the accommodating groove, the back abutting parts are located between the clamping block and the push plate, and the back end face of the disposable syringe embedded in the accommodating groove can abut against the back abutting parts.

Like this, disposable syringe rear end can lean on the back support portion, avoids disposable syringe to take place the skew, further improves disposable syringe inlays dress and the stability of injection.

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 is improved.

The preferable technical scheme is characterized in that the edges of the handheld shell are rounded.

Therefore, the handheld shell processed by the rounding off is more convenient to hold, and the comfort level of holding is improved.

The utility model has the advantages that: the automatic injection device of the disposable medical injector provided by the utility model 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 top view of an automatic injection device of a disposable medical injector provided in an embodiment.

FIG. 2 is a cross-sectional view of an automatic injection device of a disposable medical injector provided in an embodiment.

Fig. 3 is a perspective view of an automatic injection device of a disposable medical injector 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 3, fig. 1 is a top view of an automatic injection device of a disposable medical injector according to an embodiment; FIG. 2 is a cross-sectional view of an automatic injection device of a disposable medical injector provided in accordance with an embodiment; fig. 3 is a perspective view of an automatic injection device of a disposable medical injector according to an embodiment. In fig. 1 to 3, the respective reference numerals denote the following meanings; handheld shell 1, holding tank 101, installation breach 102, push pedal 2, draw-in groove 201, slip post 3, regulation latch portion 301, push spring 4, latch board 5, press post 6, reset spring 7, trigger button 8, back portion 10 that leans on, grip block 11, adjusting screw 12, adjust knob 13, projection 14.

As shown in fig. 1, 2 and 3, in one embodiment, the present invention provides an automatic injection device for a disposable medical injector, which comprises a handheld housing 1 for housing a disposable injector and a trigger assembly disposed in the housing; the disposable syringe can be embedded on the handheld shell 1, the trigger assembly can inject the medicament in the disposable syringe, and medical personnel do not need to continuously press the disposable syringe for injection. The side surface of the handheld shell 1 is provided with an accommodating groove 101 which is arranged along the extending direction of the handheld shell 1, the end surface of the handheld shell 1 is provided with an installation notch 102 which is communicated with the accommodating groove, and the width of the installation notch 102 is smaller than that of the accommodating groove 101; the disposable injector is conveniently embedded in the containing groove 101 of the handheld shell 1; the needle head at the front end of the disposable syringe extends out of the handheld shell 1, so that the injection position is conveniently positioned; the trigger assembly comprises a push plate 2 which is arranged in the accommodating groove 101 and can slide along the accommodating groove 101; two sides of the push plate 2 are provided with sliding columns 3 parallel to the accommodating groove 101, and the sliding columns 3 are sleeved with pushing springs 4; a clamping tooth plate 5 is arranged below the corresponding sliding column 3 in the handheld shell 1, and clamping teeth are arranged on the surface of the clamping tooth plate 5 opposite to the sliding column 3; the tail end of the sliding column 3 is provided with an adjusting clamping tooth part 301 extending towards the surface of the clamping toothed plate 5; the face that fishback 5 and regulation latch part 301 are relative still is equipped with presses post 6, press the cover on the post 6 to have reset spring 7, reset spring 7's one end is fixed on handheld shell 1, the other end is fixed on pressing post 6, fishback 5 meshes with regulation latch part 301 under reset spring 7's elasticity effect, pushes down when pressing post 6, fishback 5 can with adjust latch part 301 phase separation. The push rod of the injection plunger of the disposable syringe is abutted against the push plate 2, the push plate 2 can slide along the accommodating groove 101, when the push plate 2 slides to one end far away from the disposable syringe, the push springs 4 sleeved on the sliding columns 3 at two sides of the push plate 2 can compress and accumulate elasticity, the adjusting latch 401 at the tail ends of the sliding columns 3 can be clamped with the latch plate 5 to avoid the push plate 2 from rebounding and returning, the moving distance of the push plate 2 is the same as that of the push rod of the injection plunger of the disposable syringe, so that a certain amount of medicament is absorbed in the disposable syringe; the post 6 that presses of trigger assembly is pressing the back, and regulation latch 401 is kept away from to latch board 5 for the plunger push rod promotes disposable syringe plunger push rod and removes under 4 spring effects of promotion spring, ensures that the medicament exports smoothly, and at the injection in-process, injects by the disposable syringe of trigger assembly automatic drive, makes things convenient for medical personnel to operate, improves the convenience and the security of operation.

As shown in fig. 1, 2 and 3, since the disposable syringe inserted into the receiving groove 101 is not stably installed, in order to smoothly fix the disposable syringe in the receiving groove 101, in this embodiment, a clamping block 11 is provided between the corresponding installation notch 102 on the two side walls of the receiving groove 101 and the push plate 2, a clamping portion corresponding to the outer circumference of the disposable syringe is provided on the surface of the two clamping blocks 11, the clamping block 11 is screwed with an adjusting screw 12 rotatably provided in the hand-held housing 1, and the distance between the two clamping blocks 11 can be adjusted when the adjusting screw 12 rotates. The two clamping blocks 11 can play a role in clamping the disposable injector, so that the embedding stability of the disposable injector is improved, and the disposable injector is prevented from falling off in the operation process.

As shown in fig. 2 and 3, in order to adjust the distance between the clamping blocks 11, the end of the adjusting screw 12 penetrates through the outer side surface of the handheld housing 1, and the adjusting knob 13 is arranged at the end of the adjusting screw 12. Adjusting knob 13 can conveniently adjust the interval between two grip blocks 11, is applicable to the centre gripping to the disposable syringe of different specifications, improves the application scope of device, in this embodiment, in order to prevent grip block 11 and adjusting screw 12 to rotate jointly, is equipped with projection 14 on holding tank 101 lateral wall, and this projection 14 wears to establish on grip block 11, and when adjusting screw 12 rotated, grip block 11 can be followed 14 extending direction of projection and removed.

As shown in fig. 2 and fig. 3, a pair of L-shaped slots 201 arranged oppositely is provided on the surface of the push plate 2 facing away from the sliding column 3, and the slots 201 can be engaged with the end of the push rod of the disposable syringe plunger. The end part of the plunger push rod of the disposable syringe embedded into the handheld shell 1 can be clamped into the clamping groove 201 of the push plate 2, so that the plunger push rod of the disposable syringe can move along with the push plate 2, and the plunger push rod is convenient to drive to move when in use. Inlay the dress with disposable syringe and fix the back, pulling push pedal 2 can drive disposable syringe push rod plunger and remove, and disposable syringe can inject into the medicament in disposable syringe through the mode of pulling push pedal 2, because push pedal 2 displacement is the same with disposable syringe plunger push rod displacement, can make things convenient for medical personnel to confirm the injection amount.

As shown in fig. 2 and 3, since the width of the installation notch 102 is smaller than the width of the accommodating groove 101, the front end face of the disposable syringe embedded in the accommodating groove 101 can abut against the inner side of the installation notch 102, which can provide a fulcrum for the injection of the disposable syringe, thereby preventing the disposable syringe from sliding out of the handheld housing 1 and improving the use safety. The two side walls of the accommodating groove 101 are further provided with rear abutting parts 10 which are oppositely arranged, the rear abutting parts 10 are located between the clamping block 11 and the push plate 2, and the rear end face of the disposable syringe embedded in the accommodating groove 101 can abut against the rear abutting parts 10. The rear end of the disposable syringe can abut against the rear abutting part 10, so that the disposable syringe is prevented from deviating, and the stability of embedding and injection of the disposable syringe is further improved.

As shown in fig. 3, 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 6, and the latch plate 5 can be separated from the adjusting latch 401 by pressing the trigger button 8. The trigger button 8 is more convenient to press the pressing column 6, and the trigger sensitivity is improved.

As shown in fig. 3, the edges of the hand-held housing 1 are rounded. The handheld shell 1 processed by the rounding off is more convenient to hold, and the comfort level of holding is improved.

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 medical injector, characterized in that: comprises a hand-held shell (1) which can be embedded with a disposable syringe and a trigger component arranged in the shell;

the handheld shell (1) is characterized in that a containing groove (101) arranged along the extending direction of the handheld shell (1) is formed in the side face of the handheld shell (1), an installing notch (102) communicated with the containing groove (101) is formed in the end portion of the handheld shell (1), and the width of the installing notch (102) is smaller than that of the containing groove (101);

the trigger assembly comprises a push plate (2) which is arranged in the accommodating groove (101) and can slide along the accommodating groove (101); sliding columns (3) parallel to the accommodating grooves (101) are arranged on two sides of the push plate (2), and pushing springs (4) are sleeved on the sliding columns (3);

a clamping tooth plate (5) is arranged below the corresponding sliding column (3) in the handheld shell (1), and clamping teeth are arranged on the surface of the clamping tooth plate (5) opposite to the sliding column (3); the tail end of the sliding column (3) is provided with an adjusting clamping tooth part (301) extending towards the surface of the clamping toothed plate (5);

the utility model discloses a portable electronic device, including shell (1), regulation latch part (301), draw-in gear (5) and regulation latch part (301) relative surface still are equipped with and press post (6), the cover has reset spring (7) on pressing post (6), and the one end of reset spring (7) is fixed on handheld shell (1), the other end is fixed on pressing post (6), draw-in gear (5) and regulation latch part (301) meshing under the spring action of reset spring (7), press down when pressing post (6), draw-in gear (5) can with adjust latch part (301) phase separation.

2. The automatic injection device of a single use medical injector of claim 1, wherein:

holding tank (101) both sides wall corresponds and is equipped with grip block (11) between installation breach (102) and push pedal (2), and the surface that two grip blocks (11) are relative is equipped with the clamping part that suits with disposable syringe periphery, grip block (11) spiro union has rotation to locate adjusting screw (12) in handheld shell (1), works as when adjusting screw (12) rotate interval between adjustable two grip blocks (11).

3. The automatic injection device of a single use medical injector of claim 2, wherein:

the end of the adjusting screw rod (12) penetrates through the outer side face of the handheld shell (1), and an adjusting knob (13) is arranged at the tail end of the adjusting screw rod (12).

4. The automatic injection device of a single use medical injector of claim 1, wherein:

the surface of the push plate (2) departing from the sliding column (3) is provided with a pair of L-shaped clamping grooves (201) which are oppositely arranged, and the clamping grooves (201) can be matched with the tail end of a plunger push rod of the disposable syringe in a clamping manner.

5. The automatic injection device of a single use medical injector of claim 1, wherein:

the two side walls of the accommodating groove (101) are also provided with rear abutting parts (10) which are oppositely arranged, the rear abutting parts (10) are located between the clamping block (11) and the push plate (2), and the rear end of a disposable syringe embedded in the accommodating groove (101) can abut against the rear abutting parts (10).

6. The automatic injection device of a single use medical injector of claim 1, wherein:

handheld shell (1) surface is equipped with trigger button (8), trigger button (8) with press post (6) tip and link to each other, press trigger button (8) can make the pinion rack (5) with adjust latch (401) phase separation.

7. The automatic injection device of a single use medical injector of claim 1, wherein:

and each edge of the handheld shell (1) is subjected to rounding treatment.