Novel anti-stabbing infusion apparatus

Abstract

The utility model relates to the field of medical instruments. A novel puncture-preventing infusion apparatus comprises a bottle plug puncture head 3 located at one end of a hose 7 and used for being inserted into a bottle plug 2 of a liquid storage bottle 1 and a vein needle 11 located at the other end of the hose 7, the bottle plug puncture head 3 is connected with the hose 7 through a first connecting device 4, and the vein needle 11 is connected with the hose 7 through a second connecting device 10. And the first connecting device 4 and the second connecting device 10 are detachable connecting devices. The middle of the outer wall of the middle of the puncture tube of the puncture head is thick and the two ends of the outer wall of the puncture tube are thin, namely the outer diameter of the middle of the puncture tube is larger than that of the two ends of the puncture tube, in the using process, the large-outer-diameter part of the middle of the puncture tube is clamped by a bottle plug, and the situation that the puncture head falls off is avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical devices. Background Technology

[0002] Existing infusion sets are generally disposable, typically consisting of an intravenous needle, protective cap, Luer connector, infusion tubing, medication filter, flow regulator, drip chamber, and stopper puncture device. Because the tips of the stopper puncture device and the intravenous needle are relatively sharp, needle pricks frequently occur when they are discarded together after use.

[0003] In addition, with the development of technology, the functions of infusion sets are constantly increasing. They not only have heating and infusion alarm functions, but also filtering functions. In order to achieve these functions, existing infusion sets are equipped with corresponding devices. However, these devices have a certain weight. When the infusion set is shaken, it is easy for the bottle stopper and puncture tube on the infusion set to fall out of the infusion bottle. Utility Model Content

[0004] The technical problem to be solved by this utility model is: how to provide an infusion set that can avoid punctures and at the same time prevents the bottle stopper from falling off during use.

[0005] The technical solution adopted by this utility model is: a novel anti-puncture infusion set, including a bottle stopper puncture head 3 at one end of the tubing 7 for inserting into the bottle stopper 2 of the storage bottle 1 and an intravenous needle 11 at the other end of the tubing 7. The bottle stopper puncture head 3 is connected to the tubing 7 through a first connecting device 4, and the intravenous needle 11 is connected to the tubing 7 through a second connecting device 10. The first connecting device 4 and the second connecting device 10 are detachable connecting devices.

[0006] The outer wall of the puncture tube 12 of the bottle stopper puncture head 3 is thicker in the middle and thinner at both ends, that is, the outer diameter of the middle part of the puncture tube 12 is larger than the outer diameter of the two ends.

[0007] The outer wall of the middle part of the puncture tube 12 of the bottle stopper puncture head 3 is a pair of truncated cones with their bottoms touching.

[0008] During use, the outer diameter of the middle part of the puncture tube 12 is at its maximum and is located in the bottle stopper 2.

[0009] Both the first connecting device 4 and the second connecting device 10 are threaded connections.

[0010] The beneficial effects of this utility model are as follows: Both the first and second connecting devices of this utility model are detachable connecting devices. After use, the puncture head and the tubing are disassembled through the first connecting device. The puncture head that is easy to prick is placed in a box made of rigid material. The intravenous needle is disassembled through the second connecting device. The puncture head that is easy to prick is placed in another box made of rigid material. The remaining non-prickly material is placed in a plastic bag. This classification not only prevents subsequent puncture injuries, but also makes more efficient use of space and facilitates subsequent waste recycling due to the classified placement of puncture heads and intravenous needles.

[0011] The outer wall of the puncture tube of this utility model is thicker in the middle and thinner at both ends, that is, the outer diameter of the middle part of the puncture tube is larger than the outer diameter of the two ends. During use, the larger outer diameter part in the middle is held in place by the bottle stopper, and the puncture head will not fall off. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the bottle stopper piercing head of the present invention piercing the bottle stopper;

[0014] Among them, 1. storage bottle, 2. bottle stopper, 3. bottle stopper puncture head, 4. first connecting device, 5. tee, 6. drip chamber, 7. tubing, 8. flow controller, 9. injection device, 10. second connecting device, 11. intravenous needle, 12. puncture tube. Detailed Implementation

[0015] like Figure 1 and Figure 2 As shown, a novel puncture-proof infusion set includes a storage bottle 1, a stopper 2, a stopper puncture head 3, a first connecting device 4, a three-way valve 5, a drip chamber 6, a tubing 7, a flow controller 8, an injection component 9, a second connecting device 10, an intravenous needle 11, and a puncture tube 12. The stopper puncture head 3 is located at one end of the tubing 7 and is inserted into the stopper 2 of the storage bottle 1 to connect to the storage bottle 1. The intravenous needle 11 is located at one end of the tubing 7 and is inserted into a human vein. Components not specifically described in this embodiment are existing technologies. Both the first connecting device 4 and the second connecting device 10 are made of rigid plastic.

[0016] This invention is an improvement on existing infusion sets to eliminate the problem of easy puncture wounds during subsequent handling when the existing infusion sets are placed in garbage bags after use.

[0017] The improvement of this utility model is reflected in the following: the bottle stopper puncture head 3 and the tubing 7 are connected by a first connecting device 4, and the intravenous needle 11 and the tubing 7 are connected by a second connecting device 10. The first connecting device 4 and the second connecting device 10 are detachable connecting devices. After use, the bottle stopper puncture head 3 and the intravenous needle 11 can be removed separately through the first connecting device 4 and the second connecting device 10. Then, the bottle stopper puncture head 3 is placed in one box, the intravenous needle 11 is placed in another box, and the remaining parts are placed in a plastic bag. This way, the problem of punctures will not occur when handling medical waste later.

[0018] In one embodiment, the first connecting device 4 and the second connecting device 10 are threaded together. In other embodiments, the first connecting device 4 and the second connecting device 10 may also employ other existing connection methods that facilitate disassembly.

[0019] In one embodiment, the first connecting device 4 includes a first connecting tube with one end integrally connected to the bottle stopper puncture head 3 and the other end having external threads, and a second connecting tube with one end connected to the tubing and the other end having internal threads. The external threads of the first connecting tube and the internal threads of the second connecting tube engage with each other. The second connecting device 10 includes a third connecting tube with one end connected to the seat of the intravenous needle 11 and the other end having external threads, and a fourth connecting tube with one end connected to the tubing and the other end having internal threads. The external threads of the third connecting tube and the internal threads of the fourth connecting tube engage with each other.

[0020] To prevent the bottle stopper puncture head from falling off during use, this utility model improves the bottle stopper puncture head by modifying the existing cylindrical or conical puncture tube into a puncture tube with a thicker outer wall in the middle and thinner at both ends. Specifically, the outer diameter of the middle section of the puncture tube is larger than the outer diameters at both ends. During use, the point of maximum outer diameter in the middle section of the puncture tube is located within the bottle stopper.

[0021] In one embodiment, the outer wall of the middle part of the puncture tube 12 of the bottle stopper puncture head 3 is a pair of truncated cones with their bottoms touching.

[0022] When using this new anti-puncture infusion set, place the storage bottle 1 in the designated position, and then insert the stopper puncture tube 3 into the stopper 2. Because the puncture tube 3 is thicker in the middle and thinner at both ends, removing the stopper puncture tube 3 requires considerable force, and under normal circumstances, it will not fall out. This prevents the stopper puncture tube 3 from falling out of the stopper 2 due to the excessive weight of the infusion mechanism.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention without falling outside the protection scope of the present invention.

Claims

1. A novel puncture-proof infusion set, comprising a stopper puncture head (3) at one end of a tubing (7) for inserting into a stopper (2) of a storage bottle (1) and an intravenous needle (11) at the other end of the tubing (7), characterized in that: The puncture head (3) and the tubing (7) are connected by a first connecting device (4), and the intravenous needle (11) and the tubing (7) are connected by a second connecting device (10). The first connecting device (4) and the second connecting device (10) are detachable connecting devices.

2. The novel anti-puncture infusion set according to claim 1, characterized in that: The outer wall of the puncture tube (12) of the bottle stopper puncture head (3) is thicker in the middle and thinner at both ends, that is, the outer diameter of the middle part of the puncture tube (12) is larger than the outer diameter of both ends.

3. The novel anti-puncture infusion set according to claim 2, characterized in that: The outer wall of the middle part of the puncture tube (12) of the bottle stopper puncture head (3) is a pair of truncated cones with their bottoms touching.

4. The novel anti-puncture infusion set according to claim 3, characterized in that: During use, the outer diameter of the middle part of the puncture tube (12) is at its maximum and is located in the bottle stopper (2).

5. The novel anti-puncture infusion set according to claim 1, characterized in that: Both the first connecting device (4) and the second connecting device (10) are threaded connections. The first connecting device (4) includes a first connecting tube with an external thread at one end that is integrally connected to the bottle stopper puncture head (3) and a second connecting tube with an internal thread at one end that is connected to the tubing. The external thread of the first connecting tube and the internal thread of the second connecting tube are engaged. The second connecting device (10) includes a third connecting tube with an external thread at one end that is connected to the seat of the intravenous needle (11) and a fourth connecting tube with an internal thread at one end that is connected to the tubing. The external thread of the third connecting tube and the internal thread of the fourth connecting tube are engaged.

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