KR100316378B1 - An automatic pouring apparatus of an injection - Google Patents

Abstract

The present invention is to separate the liquid or solid and the liquid substance of the proper ratio into the capsule and to burst the capsule during use to automatically inject the injection solution into the compressor body generated by the chemical reaction.

Conventional injection liquid injector fluctuates the injection force of the injection liquid injected because the elastic force of the elastic bag is not constant and the pressure is not constant according to the amount of air injected into the inside, and also the defect of the elastic bag was large, and the elasticity Poor appearance caused by the poor appearance of the pockets gave no credibility to patients or caregivers.

The present invention was devised to solve such a conventional closed end, the configuration of which has a discharge port for constantly discharging a small amount of injection liquid at the front end and the rear end of the cylinder; A piston which is installed in the cylinder to be airtight and discharges the injection liquid in the cylinder to the discharge port; A capsule receiver coupled to the rear side of the piston and having a plurality of capsule grooves on the rear side thereof; An operation lever having a plurality of capsule insertion grooves corresponding to the capsule grooves of the capsule receiving body at the front and an insertion part inserted into the opening of the cylinder by a handle and having a handle at the rear end thereof; When the capsule is inserted into the capsule and the groove and mixed inside, it is composed of a plurality of capsules each of which is filled with a substance that generates a gas by generating a chemical reaction.

Description

An automatic pouring apparatus of an injection

The present invention relates to an automatic injection liquid injector capable of automatically injecting the injection liquid, and in particular, the liquid or solid and a liquid substance of a suitable ratio is separated into the capsule, and when used, the capsule is popped and used to automatically inject the injection liquid at the gas pressure generated by a chemical reaction. It is to be done.

When a small amount of injection is given to a patient in a certain time, such as a hospital, an autoinjector is used because a person cannot do this job every day.

The conventional injection liquid auto injector is formed with a discharge port for discharging a small amount of injection liquid within a predetermined time at one end of a circular cylinder, and there is a built-in piston moving to the discharge port, and an air distribution hole is drilled around the rear end. It was structured to install elastic bag of rubber material.

When using this type of injector, the air is injected into the elastic bag to inflate, and then the outlet is inserted into the injection tube and the outlet is opened. Then, the air is introduced into the air through the air distribution hole by the pressure of the elastic bag. Pushed to the side. By this force, the injection liquid in the cylinder flows into the injection tube through the discharge port by a predetermined amount so as to be injected.

However, the conventional injection liquid injector has a disadvantage in that the elastic force of the elastic bag is not constant and the pressure is not constant according to the amount of air injected therein, so that the injection amount of the injection liquid injected is severe.

In addition, the production of the elastic bag is a defective product with a small hole is generated, these defects can not be found one by one because most of them are found only in actual use, there was a lung end that can not inject the correct injection.

In addition, there was a discomfort caused by the poor appearance of the elastic bag to the uncomfortable patients or caregivers.

The present invention has been made to solve such a conventional end, the purpose is to embed the two substances that cause a chemical reaction in the capsule in the capsule and then burst the capsule when in use to reduce the pressure of the gas generated by the reaction of the substances in the capsule Injecting the tube or piston through the tube to advance the injection solution by a certain amount, increasing the precision to inject the correct amount of injection solution within the correct time, reducing the defect rate of the product, and making the volume small and simple in appearance to enhance reliability. An automatic injector is provided.

1 is an exploded perspective view of the injector according to the present invention;

2 is a cross-sectional view of the injector according to the present invention,

3 is a cross-sectional view of the use state of the injector according to the present invention;

4 is a cross-sectional view of an injector according to another embodiment of the present invention,

5 is a cross-sectional view of an injector according to another embodiment of the present invention.

*** Explanation of symbols for the main parts of the drawing ***

10-Cylinder 12-Head

14-outlet 20-piston

22-Packing 30-Capsule Collection

32a, 32b-Capsule groove 40-Control lever

41-Insertion part 42a, 42b-Capsule insert groove

44-Handle 46a, 46b-Capsule

50-tube

Means of the present invention for achieving the above object, the front end has a discharge port for constantly discharging a small amount of injection liquid and the rear end of the cylinder;

A piston which is installed in the cylinder to be airtight and discharges the injection liquid in the cylinder to the discharge port;

A capsule receiver coupled to the rear side of the piston and having a plurality of capsule grooves on the rear side thereof;

An operation lever having a plurality of capsule insertion grooves corresponding to the capsule grooves of the capsule receiving body on the front side, and a handle formed at the rear end thereof, forcing the rear end of the cylinder;

When the capsule is inserted into the capsule and the groove and mixed inside, a substance that generates a gas by generating a chemical reaction is achieved by consisting of a plurality of capsules each filled.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view of an injector according to the present invention, FIG. 2 is a cross-sectional view of the injector according to the present invention, and FIG. 3 is a cross-sectional view of the injector according to the present invention.

As shown in the present invention, the cylinder 10 and the piston 20 therein and a plurality of capsules installed between the operating lever 40 and the piston 20 and the operating lever 40 installed on the rear side of the cylinder 10. It consists of 46a and 46b.

The cylinder 10 is cylindrical, and the head part 12 with which the discharge port 14 which discharges | injects a small amount of injection liquid uniformly at the front end is couple | bonded, and the rear end is opened. At this time, the injection liquid is filled in the cylinder 10. The head portion 12 is bonded to the tip of the cylinder 10 by a high frequency coupling or an adhesive that is completely harmless to the human body, and has a structure inclined in the direction of the discharge port 14 therein.

The piston 20 is covered with a high-elastic packing 22 on the outside so that the piston 20 can be advanced in the airtight state in the cylinder 10. The front surface forms an inclined surface such as an inclined surface in the head portion 12 of the cylinder 10. In addition, the capsule receiving body 30 is attached to the rear side of the piston 20, and the capsule grooves 32a and 32b having predetermined depths into which end portions of the capsules 46a and 46b are inserted are installed at the rear side of the capsule receiving device 30. It is.

The operation lever 40 has an insertion portion 41 whose front end is forcibly fitted to the opening of the cylinder 10, and a handle 44 is formed at the rear side so that the outer circumference is knurled to prevent slipping. The front of the 41 is formed with a plurality of capsule insertion grooves (42a, 42b) corresponding to the capsule grooves (32a, 32b) of the capsule receiving 30. At this time, the capsule insertion grooves 42a and 42b have a depth enough to insert half of the capsules 46a and 46b.

The capsules 46a and 46b are sealed at both ends of a thin glass tube, and are filled with a known substance which, when mixed, causes a chemical reaction to generate a gas. The materials filled in the capsules 46a and 46b may be all liquid, but one side may be liquid and the other side may be solid, and the other side may be gas or the other side may be gas. have.

The injector having such a configuration inserts the capsules 46a and 46b into the capsule insertion grooves 42a and 42b of the operating lever 40 at the time of assembly, and then each end of the capsules 46a and 46b is located at the rear side of the cylinder 10. It is adjusted to be correspondingly inserted into the capsule grooves 32a and 32b of the inserted capsule support 30 to be coupled to the opening of the cylinder 10 by interference fit.

When the front end portions of the capsules 46a and 46b are inserted into the capsule receiver 30, an appropriate space is formed between the capsule receiver 30 and the front surface of the insertion portion 41 of the operation lever 40.

When the injection liquid needs to be injected in this state, the outlet 14 of the cylinder 10 is connected to the injection tube, and then the handle 44 on the rear side of the injector is twisted to rotate the operating lever 40. The capsules 46a and 46b interposed between the fixed capsule receiver 30 and the operating lever 40 rotated by this operation are broken as shown in FIG. 3 so that the liquid or the liquid and the solid inside are mixed in the space part. This causes a chemical reaction. As a result, gas is generated and the generated gas pressure is continuously applied to the rear side of the piston 20. The piston 20 is advanced by the gas pressure and the injection liquid filled in the cylinder 10 flows into the injection tube little by little through the discharge port 14 at a constant speed.

In addition, the structure of the injection liquid injector may be changed as shown in FIG. 4.

As shown, a diaphragm 70 having a distribution hole 71 is installed in the cylinder 10 instead of a piston, and a tube 50 is hermetically installed around the bottom of the cylinder 10.

Accordingly, when the capsules 46a and 46b are burst, gas is generated, and the gas inflates the tube 50 through the distribution hole 71 so that the injection liquid filled in the cylinder 10 is discharged to the discharge port 14.

Such a structure has a small frictional resistance with the inner wall of the cylinder 10 when the tube 50 is inflated, and thus can be easily operated even at a small gas pressure, thereby ensuring more precision.

In addition, the structure of injecting the injection liquid can be changed as shown in FIG.

As shown, a diaphragm 70 having a distribution hole 71 is installed in the cylinder 10 instead of a piston, and a tube 60 filled with an injection liquid is embedded in the cylinder.

Accordingly, when the capsules 46a and 46b are opened, gas is generated to generate pressure, and the pressure compresses the tube 60 through the flow hole 71 to discharge the injection liquid therein.

As described above, the present invention injects two substances that cause chemical reactions in the capsule to generate a pressure when used in the capsule, and the piston advances by the pressure, so that the injection liquid is discharged by a certain amount, so that the correct amount of the injection liquid is injected within the correct time. It is possible to increase the reliability as a medical device because the precision is high, the volume is small, and the appearance is simple and beautiful.

Claims (3)

A cylinder 10 having a discharge port 14 constantly discharging a small amount of the injection liquid at the front end and the rear end thereof; A piston (20) installed in an airtight manner in the cylinder (10) to discharge the injection liquid in the cylinder (10) to the discharge port (14); A capsule receiver 30 coupled to the rear side of the piston 20 and having a plurality of capsule grooves 32a and 32b on the rear side; Insertion portion 41 and the handle which is inserted into the opening of the cylinder 10 while having a plurality of capsule insertion grooves (42a, 42b) corresponding to the capsule grooves (32a, 32b) of the capsule holder 30 and the handle ( An operating lever having 44); It is inserted into the capsule grooves (32a, 32b) and the capsule insertion grooves (42a, 42b), when mixed, it is composed of a plurality of capsules (46a, 46b) that is filled with a substance that generates a chemical reaction to generate gas Injection liquid automatic injection device. A cylinder 10 having a discharge port 14 constantly discharging a small amount of the injection liquid at the front end and the rear end thereof; A diaphragm 70 installed in the cylinder 10 and having a plurality of capsule grooves 32a and 32b and a distribution hole 71; A tube 50 which is airtightly installed at the bottom circumference of the diaphragm 70 and is inflated like a balloon by the pressure of the gas introduced through the distribution hole 71; Insert portion 41 and the handle 44 having a plurality of capsule insertion grooves (42a, 42b) corresponding to the capsule grooves (32a, 32b) of the diaphragm 70 to be inserted into the opening of the cylinder (10) by force fit A control lever provided with; It is inserted into the capsule grooves (32a, 32b) and the capsule insertion grooves (42a, 42b), when mixed, it is composed of a plurality of capsules (46a, 46b) that is filled with a substance that generates a chemical reaction to generate gas Injection liquid automatic injection device. A cylinder 10 having a discharge port 14 constantly discharging a small amount of the injection liquid at the front end and the rear end thereof; A diaphragm 70 installed in the cylinder 10 and having a plurality of capsule grooves 32a and 32b and a distribution hole 71; A tube (60) installed under the diaphragm (70) to discharge the injection liquid filled by being compressed by the pressure of the gas introduced through the distribution hole (71); Insertion portion 41 and the handle (42) forcibly inserted into the opening of the cylinder (10) having a plurality of capsule insertion grooves (42a, 42b) corresponding to the capsule grooves (32a, 32b) of the diaphragm ( An operating lever having 44); It is inserted into the capsule grooves (32a, 32b) and the capsule insertion grooves (42a, 42b), when mixed, it is composed of a plurality of capsules (46a, 46b) that is filled with a substance that generates a chemical reaction to generate gas Injection liquid automatic injection device.