KR20050108169A - Filter structure and manufacturing method of once injector - Google Patents

Abstract

The filter structure and manufacturing method of the disposable syringe according to the present invention is provided with a filter formed with a filtering portion to protect the needle and prevent foreign substances such as fine glass fragments that are precipitated when cutting the injection ampoule and antibacterial (抗菌) To be able to handle medical accidents, prevent injections to be filled without exposing the needle to the outside, and safeguard against safety accidents when used in patients with acquired immunodeficiency syndrome (AIDS). For the purpose of the present invention, a cylinder having a space therein and having an injection liquid discharge portion formed at a predetermined position; Move together in contact to provide compression or suction In the disposable syringe provided with a piston and a fixing member fixed to the needle is inserted into the cylinder, the disposable syringe is provided on the outside of the fixing member to protect the needle in a state of enclosing the needle, and to prevent foreign substances from being introduced and antibacterial ( Iii) a filter having a filtering part fixed by the first filtering part departure prevention step and the second filtering part departure prevention step so as to be processed.

Description

Filter structure of disposable syringe and its manufacturing method {FILTER STRUCTURE AND MANUFACTURING METHOD OF ONCE INJECTOR}

The present invention relates to a disposable syringe, and more particularly, a filter provided with a filtering part to protect the needle, and to prevent the injection of foreign substances such as fine glass fragments that are precipitated when cutting the injection ampoule, and antibacterial. (Iii) By enabling treatment, the human body can be protected from medical accidents, while the injection can be filled without exposing the needle to the outside, so that it can be used in patients with puncture or acquired immunodeficiency. The present invention relates to a filter structure of a disposable syringe and a method of manufacturing the same, which can more safely protect from an accident.

In general, the disposable syringe S, as shown in Fig. 1 and 2, the cylinder 10 having a space 14 therein and the injection liquid discharge portion 12 is formed in the front, the cylinder 10 The push rod 20 is fitted to be coupled to the space portion in the longitudinal direction of the cylinder 10, and the front side of the push rod 20 is hermetically contacted with the cylinder 10 when the push rod 20 is moved. The piston 22 is coupled to move in a state to provide a compressive force or to provide a suction force, and the injection needle discharge member 12 formed in the cylinder 10 is separated from the needle fixing member 32 from the outside. Is coupled, the needle fixing member 32, the needle 30 is fixed, the needle fixing member 32, the needle protection to protect the needle 30 in a completely wrapped state Cap 40 is detachably coupled All.

Figure 3 is a state diagram showing the state of filling the injection solution of the injection ampoule in a disposable syringe according to the prior art.

As shown, in order to allow the injection liquid to be sucked into the space 14 in the cylinder 10, the user (doctor or nurse, etc.) has previously inserted the injection needle 30 fixed to the fixing member 32. The needle 20 to protect the needle protection cap 40 is separated from the fixing member 32 to expose the needle 30 to the outside and the push rod 20 is fitted into the space portion of the cylinder 10 The end of the needle 30 is immersed in the injection liquid filled in the injection ampoule 50 in a state of moving forward, and then pulls the push rod 20 back to the piston (with the push rod 20). 22) should be moved backwards. In this process, the suction zone is provided to the space portion in the cylinder 10 as the piston 22 coupled to the push rod 20 moves backward by the pulling of the push rod 20, and at this time, the injection liquid ampoule The injection liquid filled in 50 is sucked through the injection needle 30 fixed to the fixing member 32 and filled in the space part in the cylinder 10.

In addition, in order to administer to the patient through the disposable syringe, the user moves the cylinder 10 toward the patient, inserts the needle 30 into the patient, and then pushes the pusher 20 to the pusher 20. When the piston 22 is moved forward, the compressive force is provided to the left of the space 14 in the cylinder 10 with respect to the piston 22 to fill the space 14 in the cylinder 10. The injection liquid exits the injection liquid discharge portion 12 formed in the cylinder 10 under the compression force, exits the injection liquid discharge portion 12, and the injection liquid continues to be fixed to the injection member 30 fixed to the fixing member 32. Through the dosing state into the patient's skin is made.

After the use of the disposable syringe S, the needle protection cap 40, which was separated, is coupled to the fixing member 32 coupled to the injection liquid discharge part 12 formed in the cylinder 10, and then the injection needle 30. Should be completely wrapped and then discarded.

However, according to the above-described disposable syringe S according to the prior art, in order to fill the injection portion in the space 14 in the cylinder 10, the end of the injection needle 30 in the injection liquid filled in the injection ampule 50 Insert the rod 20 to move the rod 20 to fill the injection through the suction force at this time, when cutting the injection ampule 50 in this process, fine glass powder is precipitated in the injection ampule 50, precipitated Fine glass powder is injected together with the injection solution into the space of the cylinder 10 to be administered to the patient as it is, so that the glass powder remains in the blood in the patient's body or digs into the flesh to rot, causing serious medical accidents. There was a problem.

In addition, the needle 30 is exposed to the outside in the process of filling the injection solution filled in the injection ampoule 50 through the injection needle 30 of the disposable syringe (S), the user is stuck in the injection needle 30 In the case of patients with Acquired Immune Deficiency Syndrome (AIDS), there is a problem that it is more difficult to escape the safety of the accident.

The present invention has been made in order to solve the above problems, and provided with a filter formed with a filtering portion to protect the needle, while preventing the injection of foreign substances such as fine glass pieces that are precipitated (Precipitation, 자) when cutting the injection ampoule and antibacterial (Iii) The purpose of this treatment is to prevent medical accidents that dig into blood or flesh in the human body and rot.

In addition, another object of the present invention is to fill the injection ampule filled in the injection ampoule without exposing the needle of the disposable syringe to the outside, thereby preventing the patient from being stuck to the needle during injection or AIDS. It is to be able to protect more safely from safety accidents when used in patients.

According to the filter structure of the disposable syringe according to the present invention devised to solve the above technical problem, a cylinder having an injection portion at a predetermined position having a space therein, and moving along the longitudinal direction of the cylinder in the space portion in the cylinder And a piston that is coupled to a predetermined position of the rod, and moves together in a state of being in airtight contact with the cylinder when the rod is moved, providing a compression force or a suction force, and a needle fixed to the needle inserted into the cylinder. In the disposable syringe provided with, the first filtering portion detachment prevention jaw and the second filtering portion is provided on the outer side of the fixing member to protect the injection needle in a state of encapsulation and to prevent the introduction of foreign substances and antibacterial treatment Characterized in that it comprises a filter provided with a filtering portion fixed by the separation prevention jaw All.

In addition, the filtering unit is preferably formed by mixing the silver nanoparticles to enable bacterial growth inhibition and antibacterial treatment.

In addition, the filter is integrally combined with a disposable syringe to be wrapped and stored in a protective means (for example, a vinyl film) to prevent the introduction of foreign matter and bacteria (external).

On the other hand, according to the filter manufacturing method of a disposable syringe according to the present invention, a cylinder having a space portion therein, the injection liquid discharge portion is formed in a predetermined position, a push rod moved along the longitudinal direction of the cylinder in the space portion in the cylinder, and the push rod In the disposable syringe provided with a piston that is coupled to a predetermined position to provide a compression force or suction force while being moved together in airtight contact with the cylinder during the movement of the push rod, and the needle fixed to the needle is coupled to the cylinder In addition, the filter is provided on the outside of the fixing member to protect the needle in a wrapped state, and to prevent foreign substances from being introduced and antibacterial treatment, and the filter is rolled to the joint by extruding and extruding the filter member. It may be manufactured through a forming process of manufacturing a finished product by bonding.

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

Figure 4 is a cross-sectional view showing a disposable syringe with a filter according to the present invention, Figure 5 is a block diagram showing a state in which the disposable syringe with a filter according to the present invention is stored by the protective means, Figure 6 Figure 7 is a state diagram showing the state of filling the injection solution of the injection ampoule using the disposable syringe coupled to the filter according to the present invention, Figure 7 is an enlarged cross-sectional view showing an enlarged disposable syringe combined with the filter according to the present invention.

First, the cylinder 100, the push rod 110, the piston 112, the injection needle 120, the fixing member 122 of the components according to the present invention are the same as in the prior art, detailed description thereof will be omitted, injection It is noted that there is a difference in the structure of the filter 150 and the manufacturing method thereof, which are provided to protect the needle 120 and prevent foreign substances from being introduced and antibacterial treatment.

That is, according to the filter structure of the disposable syringe according to the present invention, the cylinder 100 has a space portion 104 therein and an injection liquid discharge portion is formed at a predetermined position, and the cylinder portion is formed in the space portion 104 in the cylinder 100. The push rod 110 which is moved along the longitudinal direction of the 100 and the push rod 110 is coupled to a predetermined position of the push rod 110 to provide a compressive force while being moved together in an airtight contact with the cylinder 100 when the push rod 110 is moved. In the disposable syringe (S) provided with a piston 112 for providing a suction force and a fixing member 122 is fixed to the needle 120 is inserted into the cylinder 100 is coupled, the fixing member 122 of the It is provided on the outer side to protect the injection needle 120, and to prevent the introduction of foreign matters and antibacterial treatment (1) to the separation of the first filtering portion prevention jaw (152a) and the second filtering portion departure prevention jaw (152b) Filter 150 having a filtering unit 154 is fixed by It characterized by including).

In this case, the filter 150 serves to protect the needle 120 is fixed to the fixing member 122 of the disposable syringe (S) in a wrapped state.

In addition, the filtering unit 154 is provided at a predetermined position (eg, an end portion) of the filter 150 coupled to the outside of the fixing member 122 of the disposable syringe S, and injected into the disposable syringe S. In the case of filling, it is to prevent the fine glass powder and foreign matters deposited in the injection ampoule 160 when cutting the injection ampoule 160 in advance.

The filtering unit 154 may be formed by mixing silver nanoparticles. The silver nanoparticles (nano silver) is an ultrafine tenant silver, which is capable of inhibiting bacterial growth, which is a basic property of silver, and antibacterial treatment, which can be precipitated when cutting external foreign substances and injection ampoules 160. It is for the treatment.

In addition, when one end of the filtering unit 154 is exposed to the outside to fill the injection liquid filled in the injection ampoule 160, the injection liquid may be filled without removing the filter 150.

That is, the fine glass powder and foreign matter precipitated in the injection ampoule 160 through the filtering unit 154 provided at a predetermined position of the filter 150 are added together with the injection solution into the space 104 of the cylinder 100. It is possible to prevent serious medical accidents that are prevented from being administered to the patient as well as antimicrobial treatment, which remains in the blood in the patient's body or digs into flesh.

8 is an enlarged cross-sectional view illustrating an enlarged state in which the first and second filtering part detachment prevention jaws are provided in the filter according to the present invention.

As shown, the filter 150 has a first filter portion departure prevention step 152a and a second filter separation prevention step 152b for preventing the separation of the filtering unit 154 at a predetermined position where the filtering unit 154 is provided. It is preferable to provide a) to prevent the separation of the filter 150. This is because the filtering unit 154 has a predetermined elastic force, so that it is not easily separated from the filter 150, but to prevent the filtering unit 154 from flowing in the filter 150 more safely. to be.

In addition, the filter 150 is preferably integrally combined with the disposable syringe (S) to be wrapped and protected with a protective means 170 to prevent the introduction of foreign matter and bacteria (외부) to the outside.

On the other hand, according to the filter manufacturing method of the disposable syringe according to the present invention, as shown in Figure 9, having a space 104 therein and the injection liquid discharge portion formed in a predetermined position, the cylinder 100 The push rod 110 which is moved along the longitudinal direction of the cylinder 100 in the space portion 104 in the inside, and is coupled to a predetermined position of the push rod 110 is in airtight contact with the cylinder 100 when the push rod 110 is moved. In the disposable syringe (S) provided with a piston 112 for providing a compressive force or a suction force while being moved together in a state, and a fixing member 122 is fixed to the needle 120 is inserted into the cylinder 100 is coupled In addition, the filter 150 is provided on the outer side of the fixing member 122 to protect the injection needle 120 in a wrapped state, and to prevent foreign substances from being introduced and antibacterial treatment. Extruding) process and roll the filter member The combined it characterized in that formed through the forming (Forming) processes for producing the finished product.

In the method of manufacturing the filter 150 through the forming process, the first filtering part departure prevention step 152a and the second filtering part departure prevention step 152b for preventing the separation of the filtering part 154 in the filter 150 are provided. It is formed to protrude a predetermined width, and fixed to the filtering portion 154 between the first and second filtering portion separation prevention projections (152a, 152b), and then the filter member is rolled in a circle to join the joint to the finished product of the filter 150 It will be able to manufacture. Of course, the filter 150 may be manufactured through extrusion processing.

While the exemplary embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to the specific embodiments, and those skilled in the art are appropriate within the scope described in the claims of the present invention. It will be possible to change.

As described above, according to the filter structure of the disposable syringe according to the present invention and a method for manufacturing the same, a filter having a filtering part is provided to protect the needle, while preventing foreign substances such as fine glass fragments that are precipitated when the injection ampoule is cut. By enabling antibacterial antibacterial treatment, there is an excellent effect that can prevent medical accidents that dig into blood or flesh in the human body in advance.

In addition, another effect of the present invention, by filling the injection ampule filled in the injection ampoule without exposing the needle of the disposable syringe to the outside to prevent the user from being stuck in the needle when filling the injection, and patients with acquired immunodeficiency It can be more securely protected from safety accidents in use.

1 is an exploded perspective view showing a typical disposable syringe.

Figure 2 is a cross-sectional view showing a disposable syringe combined with a needle protection cap according to the prior art.

Figure 3 is a use state showing a state of filling the injection solution of the injection ampoule in a disposable syringe according to the prior art.

Figure 4 is a cross-sectional view showing a disposable syringe with a filter according to the present invention.

Figure 5 is a block diagram showing a state in which a disposable syringe with a filter according to the present invention is stored by the protective means.

Figure 6 is a use state showing a state of filling the injection solution of the injection ampoule using a disposable syringe coupled to the filter according to the present invention.

Figure 7 is an enlarged cross-sectional view showing an enlarged disposable syringe with a filter according to the present invention.

8 is an enlarged cross-sectional view illustrating an enlarged state in which the first and second filtering part detachment prevention jaws are provided in the filter according to the present invention;

9 is a partial cross-sectional perspective view showing a state in which the filter according to the present invention manufactured through the forming operation.

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

S: disposable injector, 100: cylinder,

104: space part, 110: push rod,

112: Piston, 120: Needle,

122: fixing member, 150: filter,

152a: the first filtering part departure prevention jaw, 152b: the second filtering part departure prevention jaw,

160: injection ampoule, 170: protective means.

Claims (4)

A cylinder 100 having a space 104 therein and an injection liquid discharge portion formed at a predetermined position, a push rod 110 moving along the longitudinal direction of the cylinder 100 in the space 104 in the cylinder 100; The piston 112 is coupled to a predetermined position of the push rod 110 and moves together in a state of being in airtight contact with the cylinder 100 during the movement of the push rod 110 and provides a compression force or a suction force, and the cylinder 100. In the disposable syringe (S) provided with a fixing member 122 is fixed to the needle 120 is inserted into the combined), It is provided on the outside of the fixing member 122 to protect the injection needle 120 in a wrapped state, and to prevent the foreign material input and antibacterial (抗菌) treatment, the first filtering unit departure prevention jaw (152a) and the second filtering Filter structure of a disposable syringe, characterized in that it comprises a filter 150 is provided with a filtering portion 154 is fixed by the secondary departure prevention jaw (152b). The method of claim 1, The filtering unit 154 is a needle protection cap structure of a disposable syringe, characterized in that formed by mixing the silver nanoparticles. The method of claim 1, The filter 150 is integrally combined with the disposable syringe (S) and the needle of the disposable syringe, characterized in that it is wrapped and stored in a protective means 170 to prevent the introduction of foreign matter and bacteria (菌) outside Protective cap structure. A cylinder 100 having a space 104 therein and an injection liquid discharge portion formed at a predetermined position, a push rod 110 moving along the longitudinal direction of the cylinder 100 in the space 104 in the cylinder 100; The piston 112 is coupled to a predetermined position of the push rod 110 and moves together in a state of being in airtight contact with the cylinder 100 during the movement of the push rod 110 and provides a compression force or a suction force, and the cylinder 100. In the disposable syringe (S) provided with a fixing member 122 is fixed to the needle 120 is inserted into the combined), The filter 150 is provided on the outside of the fixing member 122 to protect the injection needle 120 in a wrapped state, and to prevent foreign substances from being introduced and antibacterial treatment, and the filter 150 is extruded. Process for manufacturing a filter of a disposable syringe, characterized in that formed through a forming (processing) process to form a finished product by joining the joint by rolling the processing and the filter member.