TW201914636A - Reboundable safety syringes - Google Patents

Abstract

A reboundable safety syringe is provided. The reboundable safety syringe comprises an outer tube component, an inner tube component, an inject component, an elastic component, a position restrict component and a push-rod component. The outer tube component has a hollow structure. The inner tube component has a hollow structure and fitted in the outer tube component. The two sides of an end of the inner tube component extend outward and form a protrude portion, individually. Each of the protrude portions has a hole. The inject component is disposed at another end of the inner tube component, and has a fluid transmission passage. The elastic component is positioned in the outer tube component, of which one end shores up the outer tube component and another end shores up the inject component. The restrict component has a hollow structure and is fitted in the inner tube component. The restrict component is able to movably fitted in the outer tube component. A portion of the restrict component adjacent to the two ends of restrict component extends outward and forms a rod unit. Each of the rod units has a hook portion. Each of the rod units is fitted in each of the holes and shores up the end of the inner tube component via the hook portion. The push-rod component is able to be movably fitted in the inner tube component.

Description

Resilient safety syringe

The present invention relates to a syringe, and more particularly to a resilient safety syringe having a function of rebounding and retracting a needle.

At present, the structure design of the syringe is mainly composed of a syringe with a needle sleeve and a needle sleeve. The needle is usually covered and protected by the needle cover, and the needle is prevented from stabbing the user. Only pull out the needle cover during operation to expose the needle for use.

However, when using a syringe, the syringe is generally held with one hand and the needle cover is pulled out with the other hand. However, after the needle cover is pulled out with both hands, a reverse recovery inertial force is generated, causing the user not to Be careful of being stabbed by the needle, or after using the syringe, the needle cover must be combined with the needle seat to cover the needle again, which may cause the needle to accidentally pierce the hand due to carelessness or being pushed by other external forces. Therefore, traditional syringes have a great risk of infection and are very dangerous.

Therefore, when an acupuncture accident occurs, someone may be infected with many dangerous blood-borne viruses, such as hepatitis B, hepatitis C, and AIDS. If a syringe with a safety design can be used, the occurrence of needle sticks can be greatly reduced.

In summary, the inventor of the present invention has considered and designed a resilience safety syringe in order to improve the lack of known technology, and then promote the industrial implementation and utilization.

In view of the problems of the above-mentioned conventional techniques, an object of the present invention is to provide a resilience type safety syringe to solve the shortcomings of the conventional techniques.

According to the purpose of the present invention, a resilient safety syringe is provided, which comprises an outer cylinder component, an inner cylinder component, an injection component, an elastic component, a limit component and a push rod component. The outer cylinder component is a hollow structure. The inner tube assembly is a hollow structure and penetrates the outer tube assembly. Two sides of one end of the inner tube assembly respectively extend outward to form a protruding portion, and each protruding portion has a perforation. The injection component is disposed at the other end of the inner cylinder component, and the injection component has a liquid transmission channel. The elastic component is located in the outer cylinder component. One end of the elastic component abuts against the outer cylinder component, and the other end of the elastic component abuts against the injection component. The limiting component is a hollow structure and is sleeved on the inner tube component. The limiting component can be movably engaged with the outer tube component; and the limiting component is extended outward to form rods adjacent to the two sides, and each rod has a hook. Each rod is penetrated through each perforation, and the end of the inner tube assembly is abutted by the hook portion. The push rod assembly is movably disposed in the inner cylinder assembly.

Preferably, the injection assembly may include an injection member, a positioning member, and a soft member. The injection member has a hollow structure and is disposed at the other end of the inner cylinder assembly. The positioning member is a hollow structure. The positioning member is located in the injection member and can be movably engaged with the injection member. The soft piece is a hollow structure and is located in the positioning piece. The soft piece can be movably engaged with the positioning piece. Among them, a part of the hollow structure of the injection member, the positioning member and the soft member forms a liquid transmission channel.

Preferably, each lever member may have a snap-in portion, and the inside of the outer tube assembly has a snap-in portion corresponding to each snap-in portion, and the limit assembly is movably engaged with each snap-in portion by each snap-in portion, and Closed to the outer tube assembly.

Preferably, when the push rod component is pushed to push the injection component toward the first direction and is pushed against the elastic component by the injection component, the elastic component is in a compressed state.

Preferably, one end of the push rod assembly is located in the inner cylinder assembly, and the other end of the push rod assembly is exposed outside the inner cylinder assembly and has a pushing portion; wherein, when the push rod assembly is pushed, it is pushed by the pushing portion. In the case of each hook portion, each hook portion is separated from the end of the inner tube assembly, and is pushed by the pushing portion to drive the locking portion of each lever away from each engaging portion.

Preferably, when the elastic component changes from a compressed state to an extended state, the elastic component pushes against the injection component, so that the injection component drives the inner cylinder component to be displaced in the second direction.

Preferably, the first direction and the second direction are opposite to each other.

Preferably, the inner wall of the outer cylinder component has a tenon portion, and the outer edge of the other end of the inner cylinder component has a snap-in portion. When the inner cylinder component is displaced in the second direction, the inner cylinder component is pushed by the snap-in portion Arrive at the tenon.

Preferably, the inner wall of the end of the inner cylinder assembly has at least one protruding portion.

Preferably, the reboundable safety syringe may further include a leakage stopper assembly, which is located in the inner cylinder assembly and is adjacent to the injection assembly.

As mentioned above, the reboundable safety syringe of the present invention can be set by the novel structure of the inner cylinder component, the injection component, the elastic component and the limit component, so that the inner cylinder component can be stably fixed to the outer cylinder component, and After the user's injection is completed, the locking structure between the limiting component and the outer cylinder component can be broken, so that the inner cylinder component can be moved freely, and the elastic component is compressed to make the elastic component rebound. Effect, the inner cylinder component is pushed, and the needle is retracted into the outer cylinder component, so that the needle is not exposed.

In order to help examiners understand the technical features, contents and advantages of the present invention and the effects that can be achieved, the present invention will be described in detail in conjunction with the accompanying drawings in the form of embodiments, and the drawings used therein, The purpose is only for the purpose of illustration and supplementary description. It may not be the actual proportion and precise configuration after the implementation of the invention. Therefore, the scope of the patent for the actual implementation of the invention should not be limited by the relationship between the proportion and configuration of the attached drawings. Narrated.

Hereinafter, an embodiment of a resilient safety syringe according to the present invention will be described with reference to related drawings. In order to facilitate understanding, the same elements in the following embodiments are described with the same symbols.

Please refer to FIG. 1 to FIG. 7, which are perspective views, a first structural schematic diagram, and a sixth structural schematic diagram of an embodiment of a resilient safety syringe of the present invention, respectively. As shown in the figure, the reboundable safety syringe 1 may include an outer cylinder assembly 10, an inner cylinder assembly 11, an injection assembly 12, an elastic assembly 13, a limit assembly 14 and a push rod assembly 15. The outer tube assembly 10 has a hollow structure. The inner tube assembly 11 is a hollow structure and is inserted through the outer tube assembly 10. Two sides of one end of the inner tube assembly 11 respectively extend outward to form a protruding portion 110, and each protruding portion 110 has a perforation 111. The injection assembly 12 is disposed at the other end of the inner cylinder assembly 11. The injection assembly 12 has a liquid transmission channel 120. The elastic component 13 is located in the outer tube component 10. One end of the elastic component 13 is pressed against the outer tube component 10, and the other end of the elastic component 13 is pressed against the injection component 12. The limiting component 14 is a hollow structure and is sleeved on the inner tube component 11. The limiting component 14 can be movably engaged with the outer tube component 10; and the limiting component 14 is extended outwardly to form a rod 140 adjacent to both sides, Each rod member 140 has a hook portion 141, and each rod member 140 passes through each of the through holes 111, and abuts against the end of the inner cylinder assembly 11 by the hook portion 141. The push rod assembly 15 is movably disposed in the inner cylinder assembly 11.

Specifically, the reboundable safety syringe 1 of the present invention may include an outer cylinder assembly 10, an inner cylinder assembly 11, an injection assembly 12, an elastic assembly 13, a limit assembly 14 and a push rod assembly 15. The outer cylinder assembly 10 and the inner cylinder assembly 11 may be the outer cylinder structure of a general syringe. The outer cylinder assembly 10 is larger than the inner cylinder assembly 11. The inner cylinder assembly 11 is located in the outer cylinder assembly 10. The sides respectively extend outward to form a protruding portion 110, and the protruding portion 110 has a perforation 111 for the rod member 140 of the limiting component 14 to pass through. The injection assembly 12 is disposed at the other end of the inner cylinder assembly 11 and has a liquid transmission channel 120. The injection assembly 12 and the needle 2 can pass through the liquid transmission channel 120 to deliver the medicine into the inner cylinder assembly 11. The elastic component 13 is located between the outer cylinder component 10 and the injection component 12 and abuts against the outer cylinder component 10 and the injection component 12, respectively. The elastic component 13 may be a spring. The limiting component 14 can be a ring structure and is sleeved outside the inner tube component 11. The limiting component 14 can be movably engaged with the outer tube component 10, and the limiting components 14 extend outwardly to form rods adjacent to the two sides. 140. Each lever member 140 has a hook portion 141. Each lever member 140 is passed through each of the through holes 111, and the hook portion 141 is used to abut the end of the inner cylinder assembly 11. The push rod assembly 15 may be a general syringe push rod, and the push rod assembly 15 is movably disposed in the inner tube assembly 11. The protruding portion 110 of the inner tube assembly 11 may extend outward to form a shielding portion 114, and a cross-section of the shielding portion 114 may be concave.

Further, the injection assembly 12 may preferably include an injection member 121, a positioning member 122, and a soft member 123. The injection member 121 may be a hollow structure. The positioning member 122 is a hollow structure. The positioning member 122 is located in the injection member 121 and can be movably engaged with the injection member 121. The soft member 123 is a hollow structure and is located in the positioning member 122. The soft member 123 is movably engaged with the positioning member 122. Among them, a part of the hollow structure of the injection member 121, the positioning member 122 and the soft member 123 forms a liquid transmission channel 120.

That is, the injection assembly 12 may further include an injection member 121, a positioning member 122, and a soft member 123. The injection member 121, the positioning member 122, and the soft member 123 may have a circular hollow structure, and one end of the injection member 121 may be combined with the needle 2 The soft member 123 can be movably engaged with the positioning member 122, and the positioning member 122 can be movably engaged with the injection member 121, and the injection member 121 can be movably engaged with the other end of the inner cylinder assembly. Moreover, the hollow structure at the center of the injection member 121, the positioning member 122, and the soft member 123 may constitute the liquid transmission channel 120. The engaging manner of the soft member 123 and the positioning member 122 may be the same as that of the engaging portion 140A and the engaging portion 100 described later, that is, the soft member 123 and the positioning member 122 may have the engaging portions 140A respectively. The structure of the engaging portion 100.

Further, when the push rod assembly 15 is pushed to push the injection assembly 12 toward the first direction, and the injection assembly 12 is pushed against the elastic assembly 13, the elastic assembly 13 is in a compressed state. In addition, each lever 140 may have an engaging portion 140A, the inside of the outer tube assembly 10 has an engaging portion 100 corresponding to each engaging portion 140A, and the limit assembly 14 is movably engaged with each card by each engaging portion 140A. The engaging portion 100 is engaged with the outer tube assembly 10. One end of the push rod assembly 15 is located in the inner tube assembly 11, and the other end of the push rod assembly 15 is exposed outside the inner tube assembly 10 and has a pushing portion 150. Among them, when the push rod assembly 15 is pushed and pushed against the hook portions 141 by the pushing portion 150, the hook portions 141 are separated from the end of the inner tube assembly 10 and driven by the pushing portion 150. The engaging portion 140A of each lever 140 is separated from each engaging portion 100. When the elastic component 13 changes from a compressed state to an extended state, the elastic component 13 pushes against the injection component 12 so that the injection component 12 drives the inner cylinder component 10 to be displaced in the second direction.

For example, the reboundable safety syringe 1 of the present invention may further include a snap-fit portion 140A on each lever 140, and the inside of the outer cylinder assembly 10 may also have a snap-fit portion 100 corresponding to each snap-fit portion 140A. The abutting portion 140A and the engaging portion 100 may be in a zigzag structure. The limiting component 14 can be movably engaged with each of the engaging portions 100 through each of the engaging portions 140A, and can be engaged with the outer cylinder component 10, thereby fixing the inner cylinder component 11 in the outer cylinder component 10. Moreover, the other end of the push rod assembly 15 may also have a push-abutting portion 150, which may have a shape in which the sides are recessed toward the center. Therefore, after the user operates the reboundable safety syringe 1 and the injection is completed, the user can further push the pushing portion 150 a second time, and use one end of the push rod assembly 15 to push against the soft piece 123 to make the soft piece 123 The engaging structure (like the engaging portion 140A and the engaging portion 100) with the positioning member 122 is broken, and the soft member 123 contacts the positioning member 122.

When the user continues to apply pressure, one end of the push rod assembly 15 can also push against the injection assembly 12 and drive the injection assembly 12 to displace in the first direction, and use the injection assembly 12 to push against the elastic assembly 13 so that the elastic assembly 13 is compressed. status. In addition, while the user continues to apply pressure, the pushing portion 150 will push against each hook portion 141, so that each hook portion 141 is separated from one end of the inner tube assembly 10 without being locked on the inner tube assembly 10, At the same time, the pushing portion 150 also pushes the hook portions 141 to displace the lever members 140, causing the locking portion 140A to disengage from the engaging portions 100, that is, the cards of the limit assembly 14 and the outer tube assembly 10. The closed structure collapses, so that the limiting component 14 is dropped and displaced toward the inside of the outer tube component 10. At this time, the limiting assembly 14 has lost the function of fixing the inner cylinder assembly 11 in the outer cylinder assembly 10, that is, the inner cylinder assembly 11 is in a state of being freely displaceable.

Finally, when the user stops applying pressure and relaxes without applying force at all, the elastic component 13 will change from a compressed state to an extended state by its own elastic restoring force. At this time, the elastic component 13 pushes against the injection component 12 to drive the injection component 12 to drive the inner cylinder component 10 to be displaced in the second direction, so that the needle 2 is retracted into the outer cylinder component 10. The first direction and the second direction may be opposite to each other. The first direction may be toward the front end of the outer tube assembly 10, and the second direction may be toward the rear end of the outer tube assembly 10.

With this, the reboundable safety syringe 1 of the present invention can be provided with the novel structure of the inner cylinder assembly 11, the injection assembly 12, the elastic assembly 13, and the limit assembly 14, so that the inner cylinder assembly 11 can be stably fixed outside. After the user completes the injection, the cylinder assembly 10 can be broken through the engaging structure between the limiting assembly 12 and the outer cylinder assembly 10, so that the inner cylinder assembly 11 can be moved freely, and the compression elastic assembly 13 is used. As a result, the elastic component 13 has a rebound effect, and the inner cylinder component 11 is pushed, so that the needle 2 is retracted into the outer cylinder component 10 to achieve the effect that the needle 2 is not exposed.

Further, the inner wall of the outer tube assembly 10 may have a tenon part 101, and the outer edge of the other end of the inner tube assembly 11 has a latching part 112. When the inner tube assembly 11 is displaced in the second direction, the inner tube assembly 11 is The latching portion 112 abuts against the latching portion 101.

That is, the inner wall of the outer cylinder assembly 10 corresponding to one end of the inner cylinder assembly 11 may further have a tenon part 101, and the outer edge of the other end of the inner cylinder assembly 11 may have a snap-in part 112, and the tenon part 101 and the snap-in The portion 112 may be a threaded structure. Therefore, when the reboundable safety syringe 1 is assembled, the inner cylinder assembly 11 can be movably engaged and disengaged with the tenon portion 101 through the latching portion 112 to enter the outer cylinder assembly 10. Conversely, after the elastic component 13 rebounds and drives the inner tube component 11 to retract to the outer tube component 10, if the elastic component 13 has too large a rebound force, the inner tube component 11 can touch the tongue portion 101 by the latching portion 112 As a result, the inner cylinder assembly 11 cannot be separated from the outer cylinder assembly 10, thereby preventing the inner cylinder assembly 11 from popping out of the outer cylinder assembly 10.

Please refer to Figure 1 to Figure 6. In another embodiment, the inner wall of the end of the inner cylinder assembly 11 of the present invention may preferably have at least one protruding portion 113. Therefore, in the process that the user draws the medicine into the inner cylinder assembly 11 by pulling the push rod assembly 15, when the user has too much force, at least one protrusion 113 can be used to press against the rubber push head at one end of the push rod assembly 15. To prevent the user from pulling the push rod assembly 15 out of the outer cylinder.

Further, the reboundable safety syringe 1 of the present invention may further include a leakage stop assembly 16 located in the inner cylinder assembly 10 and adjacent to the injection assembly 12. That is, the reboundable safety syringe 1 of the present invention can further be provided with a leak-proof assembly 16 such as a ring-shaped rubber pad in the inner cylinder assembly 10 and attached to the injection assembly 12 to prevent the medicament of the inner cylinder assembly 11 from passing through. The component 12 is injected and exposed.

The above description is exemplary only, and not restrictive. Any equivalent modification or change made without departing from the spirit and scope of the present invention shall be included in the scope of the attached patent application.

1‧‧‧ Resilient safety syringe

10‧‧‧ Outer tube assembly

100‧‧‧ Engagement Department

101‧‧‧ Card tenon

11‧‧‧Inner tube assembly

110‧‧‧ protrusion

111‧‧‧perforation

112‧‧‧Card Arrivals

113‧‧‧ protrusion

114‧‧‧ shelter

12‧‧‧ Injection components

120‧‧‧ liquid transmission channel

121‧‧‧ Injection

122‧‧‧ Positioning piece

123‧‧‧Software

13‧‧‧Elastic components

14‧‧‧ limit components

140‧‧‧ Rod

140A‧‧‧Card Arrival Department

141‧‧‧Card hook

15‧‧‧PUTTER ASSEMBLY

150‧‧‧Pushing Department

16‧‧‧Leak Stopper

2‧‧‧ Needle

FIG. 1 is a perspective view of an embodiment of a resilient safety syringe of the present invention. FIG. 2 is a schematic diagram of a first structure of an embodiment of a resilient safety syringe of the present invention. FIG. 3 is a schematic diagram of the second structure of the embodiment of the resilient safety syringe of the present invention. FIG. 4 is a schematic diagram of the third structure of the embodiment of the resilient safety syringe of the present invention. FIG. 5 is a schematic diagram of the fourth structure of the embodiment of the resilient safety syringe of the present invention. FIG. 6 is a fifth structural diagram of an embodiment of a resilient safety syringe of the present invention. FIG. 7 is a sixth structural diagram of an embodiment of a resilient safety syringe of the present invention.

Claims (10)

A reboundable safety syringe comprises: an outer cylinder assembly, which is a hollow structure; an inner cylinder assembly, which is a hollow structure, and penetrates through the outer cylinder assembly, two of which are at one end of the inner cylinder assembly. Each side extends outward to form a protruding portion, each protruding portion has a perforation; an injection component is disposed at the other end of the inner cylinder component, the injection component has a liquid transmission channel; an elastic component is located at In the outer cylinder assembly, one end of the elastic assembly abuts against the outer cylinder assembly, and the other end of the elastic assembly abuts against the injection assembly; a limit assembly, which is a hollow structure, and is sleeved on the inner cylinder Component, the limiting component can be movably engaged with the outer cylinder component; and the limiting component is extended outwardly to form a rod on the two sides, each of the rods has a hook portion, each of the rods penetrates It is provided in each of the perforations, and abuts against the end of the inner tube assembly by the hook portion; and a push rod assembly is movably inserted in the inner tube assembly. The reboundable safety syringe according to item 1 of the scope of patent application, wherein the injection assembly includes: an injection member, which is a hollow structure, and is disposed at the other end of the inner cylinder assembly; a positioning member, which It is a hollow structure, the positioning member is located in the injection member and can be movably engaged with the injection member; and a soft member is a hollow structure and is located in the positioning member, and the soft member can be movably engaged in The positioning member; wherein the injection member, the positioning member, and a part of the hollow structure of the soft member form the liquid transmission channel. The springable safety syringe according to item 1 of the scope of the patent application, wherein each of the rods has a snap-in portion, and the inside of the outer barrel component has a snap-in portion corresponding to each of the snap-in portions, and the limit The component is movably engaged with each of the engaging portions through each of the engaging portions to engage with the outer cylinder component. The reboundable safety syringe according to item 3 of the scope of patent application, wherein when the pusher component is pushed to push the injection component in a first direction, and when the push component is pushed against the elastic component, , The elastic component is in a compressed state. The reboundable safety syringe according to item 4 of the scope of patent application, wherein one end of the push rod assembly is located in the inner barrel assembly, and the other end of the push rod assembly is exposed outside the inner barrel assembly and has a Pushing portion; wherein when the push rod assembly is pushed and pushed against each of the hook portions by the pushing portion, each of the hook portions is separated from the end of the inner cylinder component and is received by the pushing portion Pushing to drive the engaging portion of each lever away from each engaging portion. The resilient safety syringe according to item 5 of the scope of patent application, wherein when the elastic component changes from the compressed state to an extended state, the elastic component pushes against the injection component to drive the injection component to drive The inner cylinder assembly is displaced in a second direction. The reboundable safety syringe according to item 6 of the scope of patent application, wherein the first direction and the second direction are opposite to each other. The reboundable safety syringe according to item 6 of the scope of patent application, wherein the inner wall of the outer cylinder component has a tenon portion, and the outer edge of the other end of the inner cylinder component has a snap portion. When the inner cylinder component is displaced in the second direction, the inner cylinder component is pressed against the tenon portion by the latching portion. The reboundable safety syringe according to item 1 of the scope of patent application, wherein the inner wall of the end of the inner cylinder assembly has at least one protruding portion. The reboundable safety syringe according to item 1 of the scope of the patent application, further comprising a leak-proof component, which is located in the inner barrel component and is adjacent to the injection component.