KR200163375Y1 - Automatic injection device for single use hypodermic syringe - Google Patents

Abstract

The present invention relates to a folding automatic scanning device for a disposable syringe, which provides an automatic injection device which is simple and easy to replace the disposable syringe, and the injection needle is automatically double-acted after injection and controls the depth of the insertion of the injection needle. There is a purpose.

The structure of the present invention is an automatic injection device used for a disposable syringe, in which the piston rod (2) for pushing the disposable syringe and the cylinder (3) for advancing and retracting the piston rod (2) are built in the front end of the housing (1). The storage case 4 of the disposable syringe 5 was crushed and squeezed with a spring 19 and hung with a squeezing piece 18 to form the outer shell of the automatic injection device in a folding manner, and the groove wall 1 'and In the housing 1 where the push button hole 1 'is hollowed, fix the round tube 7 in which the spring 16 is installed. Then, the outside of the cylinder 3 having the handle 10 and the engaging hole 8 formed in the bottom, The cylinder 3 is inserted into the through hole 13d which is installed in the plate body 13b integrally formed at the lower end of the push button 13 supported by the spring 13a, and the locking jaw 13c is rolled out at the bottom of the mouth. (3) The teeth (9) formed in the lower portion and the teeth (11) formed in the upper portion of the piston rod (2) are engaged with the gear 12 to form a soup. By operating the cylinder 3 by the elastic force of the (16) to drive the piston rod (2) from side to side and control by the push-down of the push button 13, the spring 14 and ' The disposable syringe 5 is built in through the O 'ring 15 at the tip portion, and the depth control tool 20 for inserting the syringe needle is attached to the tip end portion 4' of the syringe storage case 4.

Description

Automatic Injection Device for Disposable Syringe {AUTOMATIC INJECTION DEVICE FOR SINGLE USE HYPODERMIC SYRINGE}

The present invention relates to a folding automatic injection device for a disposable syringe, the replacement of the disposable syringe is simple and easy, and after the injection provides a automatic injection device that can automatically double-actuate the injection needle and control the depth of the injection needle insertion The purpose is to.

Conventional disposable syringes have the drawback that they are thrown away after one use, which improves this by allowing the single-use syringes to be mounted inside and continuously injected, replacing the syringes easily, and easy to use after use. There is a continuous injection device (Application No. 97-11497) that uses a disposable syringe that eliminates the problem, but in this case, the upper and lower cases are made to be easily detachable, and a single-use syringe is inserted therein to continuously inject each time. Eliminating the inconvenience of injecting a chemical solution, after use, the upper and lower cases were opened and the disposable syringe was separated and discarded to eliminate the hassle of sterilization.

The present invention is a disposable injection device that is automatically operated, easy to replace the disposable syringe, and after injection, the needle is double acting, the means for controlling the depth of the injection needle and the automatic injection device of the disposable syringe with simple operation To provide.

1 is a cross-sectional view of the present invention

2 is an enlarged perspective view of the main part of the present invention;

(A) is the canceled state of the push button

(B) as for the hanging state of the push button

(C) tooth gear right sectional view

(D) depth control of the needle insertion;

<Description of the code | symbol about the principal part of drawing>

1: Housing 1 ': Slide groove 1': Push button hole 2: Piston rod

3: Cylinder 4: syringe storage case 4 ': syringe storage case tip bent

5: disposable syringe 6: hinge 7: tube 7 ': support rod

8: jam hole 9: tooth 10: handle 11: tooth 12: gear

13: Push button 13a: Spring 13b: Plate 13c: Hanging jaw

13d: hole 14: spring 15: '0' ring 16: spring

18: Departure piece 19: Spring 20: Depth control tool of injection needle insertion

The automatic injection device using the disposable syringe of the present invention has a housing (1) and a housing (1) incorporating a piston rod (2) for pushing the disposable syringe and a cylinder (3) for retracting the piston rod (2) from side to side. The outer case of the auto-injector is foldable by squeezing the storage case 4 of the disposable syringe at an angle of 30-40 ° with the hinge 6 at the distal end of the disposable syringe, holding it with a spring 19, and hanging it with a depressing piece 18. do. A slide tube 1 'and a push button hole 1' are formed on the outer wall of the housing 1, and a circular tube 7 having a spring 16 supported by a supporting rod 7 'at the upper portion of the housing 1 is embedded. Fix the outside and the outer tube (7) outside the cylinder (3) formed with a handle (10) at the top and a locking hole (8 ') at the bottom.

The cylinder 3 is installed in the plate body 13b integrally connected to the lower end of the push button 13 supported by the spring 13a, and the catching jaw 13c is inserted into the through hole 13d which is horizontally laid down in the lower portion of the cylinder. 3) The teeth formed in the lower part and the teeth 11 formed in the upper part of the piston rod 2 are engaged with the gear 12 to operate the cylinder 3 by the elastic force of the spring 16 to right and left the piston rod 2. The motor is controlled by the rotation of the push button 13 and controlled. The syringe storage case 4 includes a disposable syringe 5 with a needle attached to the distal end of the spring 14 and the 'O' ring 15, and the syringe needle is inserted into the syringe storage case distal end 4 '. The depth control tool 20 is attached to the configuration.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

When injecting using the automatic injection device of the disposable syringe of the present invention, the disposable syringe 5 prepared by opening the syringe storage case 4 extracted with the hinge 6 at the tip of the housing 1 at an angle of 30-40 ° is opened. After inserting into the syringe storage case 4, the storage case 4 is doubled to its original position, and is gripped by the entrainment piece 18, and the handle 10 mounted on the cylinder 3 is held and inserted into the housing 1. When the cylinder 3 is pushed forward along the slide groove 1 ', the spring 16 is compressed and the cylinder 3 fitted in the through hole 13d installed in the plate body 13b of the push button 13 slides to open the cylinder. A locking hole 8 formed at the bottom of (3) is caught and caught by a locking jaw 13c formed at the bottom of the through hole 13d. (See FIG. 2B).

When using the disposable syringe 5, when the push button 13 is pressed, the spring is compressed and at the same time the plate body 13b connected to the push button 13 descends while the through hole 13d also descends. The catching hole 8 of the cylinder 3 over the catching jaw 13c is released. At this time, the cylinder 3 is pushed backward by the elastic force of the spring 16 mounted on the original tube 7, and the tooth is retracted. The teeth 9 formed in the cylinder 3 engaged with the teeth 12 and the teeth 11 formed in the piston rod 2 mesh with each other, so that the piston 12 is driven while the piston rod 2 is driven by the cylinder 3. The syringe needle is automatically pushed and the chemical liquid is injected into the human body by pushing the disposable syringe 5 by moving forward in the direction opposite to the movement direction. When the depth of the locking hole 8 of the cylinder 3 is held by the locking step 13c of the push button 13, the piston rod 2 is operated in the opposite direction.

In addition, the depth of the syringe needle is adjusted by adjusting the circular screw of the depth control port 20 of the syringe needle insertion according to the body characteristics of the individual who fits the syringe. Disposable syringe (5) of the present application absorbs the shock during injection by interposing the spring (14) and the ring (15) in the syringe storage case (4) and the spring (14) when the handle 10 is returned to its original position after the injection. It is convenient to double acting by the elasticity of the force), and after injection, the disposable case 5 may be replaced by opening the storage case 4.

In addition, the syringe storage case 4 is pushed by the hinge 6 at the tip of the housing 1 and is supported by the spring 19 so that it does not open more than 30-40 ° to the housing 1 with a plunging piece 18. Close contact.

The present invention, as described above, is a very useful design that can be easily and quickly and automatically injected automatically even when an emergency patient, such as a normal injection or a heart attack, is economical, and is easy to attach and detach a disposable syringe.

Claims (1)

In an automatic injection device used for a disposable syringe, a disposable syringe (5) at the tip of a housing (1) containing a piston rod (2) for pushing the disposable syringe and a cylinder (3) for advancing and retracting the piston rod (2). ), The storage case (4) of the squeezed with a spring (19) and hung with a gilding piece (18) to form the outer shell of the automatic scanning device in a folding manner, grooves (1 ') and push button holes (1) on the outer wall ') Secures the round tube (7) with the spring (16) in the hollow housing (1) so that the handle (10) and the cylinder (3) with the locking holes (8) formed at the bottom are outside, and then the spring (13a) The cylinder 3 is inserted into the through hole 13d which is installed in the plate body 13b integrally formed at the lower end of the pushed push button 13, and the locking jaw 13c is laid out at the lower part of the mouth. The teeth 9 formed in the upper part of the piston rod 2 and the teeth 11 formed therein are engaged with the gears 12 and are driven by the elastic force of the spring 16. To operate the cylinder (3) to rotate the piston rod (2) from side to side and control by the push-down of the push button (13), the spring 14 and the 'O' ring (15) in the syringe storage case (4) An auto-injection device for disposable syringes, comprising a disposable syringe (5) interposed at the distal end and a depth control (20) for inserting the syringe needle into the distal end (4 ') of the syringe storage case (4).