TWM511868U - Safety syringe - Google Patents

Description

Safety syringe

This creation relates to a syringe, and in particular to a safety syringe.

In order to avoid repeated use of the syringe, the syringe must be separated and recovered. However, many medical personnel and medical waste disposal personnel are often stabbed by syringe needles due to improper handling, and even infections such as: AIDS, hepatitis B, tuberculosis, AIDS, etc. Infected disease. In order to avoid the above events, various types of safety syringes have appeared on the market. The safety syringes that are generally found on the market are mostly structural designs that pull the needles of the syringe back into the syringe. However, this structural design complexity increases the manufacturing cost, and the cost is high for the syringes that need to be discarded once. The syringe appears to be less practical.

Therefore, the creator feels that the above-mentioned deficiency can be improved. He is devoted to research and cooperates with the application of theory, and finally proposes a creation that is reasonable in design and effective in improving the above-mentioned deficiency.

The main purpose of this creation is to provide a safety syringe that allows medical personnel to separate and recover the needle from the needle of the syringe by hand, reducing the risk of needle sticking by the needle, and the structure is streamlined, making the process Simplification, saving time and labor, reducing manufacturing costs and increasing product competitiveness.

In order to achieve the above description, the present invention provides a safety syringe comprising: a syringe; a push rod, the push rod is movably disposed in the syringe; and a needle The needle is detachably sleeved on the front end of the barrel; wherein the front end of the push rod is provided with an elastic body and a push rod protruding from the elastic body, and when the front end of the push rod moves toward the needle, The elastic body is pressed against the cylinder so as to be elastically deformed, so that the pushing rod passes through the barrel and pushes the needle outward to separate the needle from the barrel.

Preferably, the syringe has a syringe and a connecting tube at the front end of the syringe, and the connecting tube is in communication with the syringe.

Preferably, the rear end of the syringe has a through hole through which the push rod can be inserted, and the front end of the connecting tube has a through hole through which the push rod can be inserted.

Preferably, the needle comprises a needle seat and a needle at the front end of the needle seat, and the rear end of the needle seat is recessed inwardly to form a set of recesses, and the sleeve recess is detachably sleeved on the connecting tube.

Preferably, the ejector pin movably passes through the connecting tube and abuts against the sleeve recess, and the ejector pin can push outwardly against the sleeve recess when the elastic body is elastically deformed, so that the sleeve The recess is separated from the connecting tube.

In summary, the present invention has at least the following advantages: the safety syringe provided by the present invention has an elastic body and a push-pushing column protruding from the elastic body through the front end of the push rod, and the elastic body can be elastically deformed under pressure, so that The push-pull column is pushed out of the syringe and pushed outward to the needle, so that the needle is disengaged from the syringe, so that the needle can be separated and recovered by the medical staff without removing the needle by hand, and the needle of the medical staff is lowered. The risk of the needle being tied and the structure being streamlined reduces the manufacturing cost of the safety syringe, thereby increasing the competitiveness of the product.

10‧‧‧Syringe

11‧‧‧ syringe

111‧‧‧ Ring Department

1111‧‧‧through hole

112‧‧‧Support Department

1121‧‧‧Perforation

12‧‧‧Connecting tube

121‧‧‧Perforation

20‧‧‧Put

21‧‧‧ Elastomers

22‧‧‧Pushing column

30‧‧‧ needles

31‧‧‧ needle seat

311‧‧‧ Socket recess

32‧‧‧ needle

R‧‧‧ needle recycling container

Figure 1 is a partial exploded view of the inventive safety syringe.

Figure 2 is a diagram (I) of the state of use of the creation safety syringe.

Figure 3 is a diagram (2) of the state of use of the creation safety syringe.

Figure 4 is a diagram (3) of the state of use of the creation safety syringe.

Figure 5 is a diagram (4) of the state of use of the creation safety syringe.

Figure 6 is a diagram (5) of the state of use of the creation safety syringe.

In order to further understand the features and technical contents of the present invention, the present invention will be described in detail in conjunction with the embodiments and the accompanying drawings. Those skilled in the art can easily understand the other advantages of the present invention from the contents disclosed in the present specification. And efficacy. The present invention can also be implemented or applied by other specific examples. The details of the present specification can also be based on different viewpoints and applications, and various modifications and changes can be made without departing from the spirit of the present invention. Therefore, all the embodiments in the present application are examples and are not intended to be limiting, and the present invention may be widely applied to other embodiments except for the implementations herein, and the present invention is not limited to any embodiment. It should be based on the scope of the patent application and its equivalent fields.

Referring to Figures 1 through 6, the present invention provides a safety syringe. The creation safety syringe basically comprises a syringe 10, a push rod 20, and a needle 30. Hereinafter, the respective configurations of the syringe 10, the pusher 20, and the needle 30 will be described in more detail, and the relationship between each other will be described as appropriate.

The syringe 10 has a hollow shape and has a syringe 11 and a connecting tube 12 at the front end of the syringe 11, and the connecting tube 12 is substantially tapered and communicates with the syringe 11. In detail, the front end of the syringe 11 has a ring portion 111 having a through hole 1111. The rear end of the syringe barrel 11 has a supporting portion 112 which defines a through hole 1121, and a front end of the connecting tube 12 has a through hole 121.

The push rod 20 is movably disposed in the barrel 10, and an elastic body 21 and an ejector pin 22 protruding from the elastic body 21 are fixed to the front end of the push rod 20. In detail, the pusher column 22 is a rigid member, and the elastic body 21 is an elastically deformable member after being subjected to a force, for example, a polymer having a resilient property, a polymer-bonded metal spring, or a polyurethane (Polyurethane, Made of PU) and preferably made of a medical grade elastic foam. In addition, the push rod 20 is movably extended in the syringe 10 through the through hole 1121, and the push rod 22 is movably protruded outside the syringe 10 through the through hole 121, that is, the through hole 1121 at the rear end of the syringe 11 is pushed. The rod 20 is bored, and the through hole 121 at the front end of the connecting tube 12 is pierceable by the pushing rod 22. Furthermore, the syringe 11 of the syringe 10 communicates with the connecting tube 12 through the through hole 1111, and the inner diameter of the through hole 1111 is larger than the outer diameter of the pushing rod 22, but the inner diameter of the through hole 1111 is smaller than that of the elastic body 21. When the push rod 20 is pushed to the bottom, the push rod 22 can pass through the through hole 1111 and the through hole 121, and the elastic body 21 can abut against the ring portion 111 of the syringe 11 if the elastic body 21 continues to be injected. The pressing of the ring portion 111 of the barrel 11 and the push rod 20 causes elastic deformation and causes the pushing column 22 to project forward.

The needle 30 is detachably sleeved on the front end of the barrel 10. The needle 30 includes a needle holder 31 and a needle 32 at the front end of the needle holder 31. The rear end of the needle holder 31 is recessed inwardly to form a set of recesses 311. The recessed portion 311 has a substantially concave tapered shape and is connectable to the needle 32 through a hole (not shown).

When the needle 30 is sleeved on the front end of the barrel 10, the connecting tube 12 extends into the sleeve recess 311, so that the inner edge of the sleeve recess 311 is tightly fitted with the outer edge of the connecting tube 12, so that the needle 30 can be stably set. At the front end of the syringe 10.

Furthermore, when the front end of the push rod 20 is moved in the direction of the needle 30, the pusher post 22 can be movably passed out of the syringe 10 and pushed outwardly against the needle 30. In detail, when the push rod 20 is pushed to the bottom of the needle 30, the elastic body 21 abuts against the ring portion 111 of the syringe 11 , and the push rod 22 protrudes from the connecting tube 12 and abuts against the sleeve recess 311 . When the elastic body 21 is pressed and deformed, the pushing rod 22 which protrudes from the connecting tube 12 and abuts against the socket recess 311 can be further moved outward, and the outer pushing portion 311 is pushed outward to make the sleeve The recessed portion 311 is separated from the connecting tube 12 to further disengage the needle 30 from the syringe 10.

When injecting, as shown in Figures 2, 3, and 4, the operator pushes the push rod 20 forward to move the push rod 20 toward the needle 30, and the elastic body 21 passing through the front end of the push rod 20 Under the action, the injection solution in the syringe 10 can be injected through the needle 30. After the pusher 20 is pushed to the end to inject the injection, the elastic body 21 abuts against the ring portion 111 of the syringe 11 and the pusher post 22 protrudes from the connecting tube 12 and abuts against the sleeve recess 311.

After confirming the safe disposal after the completion of the injection, as shown in Figs. 5 and 6, the operator must apply force again to push the push rod 20 forward so that the elastic body 21 against the ring portion 111 of the syringe 11 is subjected to The force is elastically deformed, and the pushing column 22 that originally abuts against the sleeve recess 311 is further moved forward to push against the sleeve recess 311, so that the needle 30 is pushed up and disengaged from the barrel 10, so that the needle 30 is It falls directly into the needle recovery container R to reduce the risk of being stabbed by the needle 32 of the needle 30.

In summary, the safety syringe of the present invention has an elastic body and a push-pull column protruding from the elastic body through the front end of the push rod, and the elastic body can be elastically deformed under pressure, so that the push-pull column passes through the syringe and is pushed outward. Reaching the needle, thereby separating the needle from the syringe, and allowing the needle to fall directly into the needle recovery container, so that the medical staff can avoid the needle being removed by hand, and the needle can be separated by a single action with one hand Recycling reduces the risk of medical staff being pinned by the needles of the needles, and also improves the efficiency of the medical staff, and the structure is streamlined, which reduces the manufacturing cost of the safety syringes of the creation, thereby increasing the competitiveness of the products.

The above is only a preferred embodiment of the present invention, and it is not intended to limit the scope of the patents of the present invention. Any changes and modifications made to the scope of the patent application of the present invention should be covered by the present invention.

10‧‧‧Syringe

11‧‧‧ syringe

111‧‧‧ Ring Department

112‧‧‧Support Department

12‧‧‧Connecting tube

121‧‧‧Perforation

20‧‧‧Put

21‧‧‧ Elastomers

22‧‧‧Pushing column

30‧‧‧ needles

31‧‧‧ needle seat

311‧‧‧ Socket recess

32‧‧‧ needle

Claims (5)

A safety syringe includes: a syringe; a push rod, the push rod is movably disposed in the syringe; and a needle device detachably sleeved on the front end of the syringe; wherein The front end of the push rod is provided with an elastic body and a pushing rod protruding from the elastic body, and the front end of the push rod moves toward the needle to press the elastic body to elastically deform against the needle cylinder, thereby The plunger is passed out of the barrel and pushed outwardly to the needle to separate the needle from the barrel. The safety syringe of claim 1, wherein the syringe has a syringe and a connecting tube at the front end of the syringe, and the connecting tube is in communication with the syringe. The safety syringe of claim 2, wherein the rear end of the syringe has a perforation for the push rod to be pierced, and the front end of the connecting tube has a perforation through which the push rod can be inserted. The safety syringe of claim 2, wherein the needle comprises a needle seat and a needle at the front end of the needle seat, and the rear end of the needle seat is recessed inward to form a set of recesses, the sleeve recesses being detachably Socketed to the connecting tube. The safety syringe of claim 4, wherein the plunger is movably passed out of the connecting tube and abuts against the sleeve recess, and the pushing rod is pushed outward when the elastic body is elastically deformed The sleeve is recessed to separate the sleeve recess from the connecting tube.