Transfusion puncture outfit

Abstract

The infusion puncture outfit comprises a puncture part, the puncture part comprises a tail part, a middle part and a head part which are sequentially arranged, the whole body of the middle part is sunken inwards, the outer diameter of the middle part is smaller than the outer diameter of the head part and / or the tail part at the connected position, a vent hole and a liquid passing hole are formed in the two opposite sides of the head part respectively, and the vent hole is communicated with the liquid passing hole. And the vent hole and the liquid through hole extend to the tail part. The anti-falling device can provide an anti-falling effect when being punctured into a bottle, use safety is guaranteed, meanwhile, liquid medicine at the position of a bottle opening can be led out, residues are reduced, and waste and generated environmental pollution are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of infusion equipment, in particular to an infusion puncture device. Background Art

[0002] The infusion puncture set is a commonly used medical device, which is mainly used for intravenous drip. The puncture set structure currently on the market mainly includes a handheld part, a piercing part located on the upper side of the handheld part, and a liquid outlet part located on the lower side of the handheld part. The handheld part is the basic part of the entire infusion puncture set. The piercing part is in the shape of a hollow cylindrical tube, one end of which is connected to the handheld part and the other end forms a piercing head. The piercing head is a hook-like structure formed by beveling the end of the piercing part, so that when in use, the sharp corner of the piercing head can pierce the rubber plug on the infusion bottle. A gas channel and a liquid channel are formed inside the piercing part and the handheld part. The gas channel is used to supply air to the infusion bottle, and the liquid channel is used for the outflow of the liquid in the infusion bottle.

[0003] For example, the patent number CN111388798A previously applied by the applicant discloses an infusion set puncture connector, which includes a base and a puncture head, and is characterized in that: the interior of the puncture connector has an air inlet channel and a liquid outlet channel; a one-way air inlet component is provided on the air inlet channel, and the air inlet of the air inlet channel is located on the base, and the air outlet is located on the puncture head; the liquid outlet channel includes a liquid inlet section, a liquid storage cavity and a liquid outlet section; the liquid inlet of the liquid inlet section is located on the puncture head, and the liquid outlet is connected to the liquid storage cavity; the liquid inlet of the liquid outlet section is connected to the liquid storage cavity, and the liquid outlet is located on the base.

[0004] In the above patent, after the head of the puncture device is inserted into the infusion bottle, it is easy to be detached by external force due to the lack of an anti-falling structure, which poses a safety hazard. In addition, the liquid medicine at the bottle mouth is difficult to flow into the puncture device, and there is residue, which causes waste and pollution. Utility Model Content

[0005] The utility model aims to avoid the shortcomings of the prior art and provides an infusion puncture device which can avoid separation during use.

[0006] The utility model solves the technical problem by adopting the following technical scheme: an infusion puncture device, comprising a puncture portion, characterized in that the puncture portion comprises a tail portion, a middle portion and a head portion which are arranged in sequence, the circumference of the middle portion is recessed inwards and the outer diameter of the middle portion is smaller than the outer diameter of the head portion and / or the tail portion at the connected position, an air vent and a liquid through hole are respectively arranged on opposite sides of the head portion, and the air vent and the liquid through hole both extend to the tail portion.

[0007] In several embodiments, a liquid passage groove is provided inwardly on one side of the head, the liquid passage groove is connected with the liquid passage hole, and the liquid passage groove extends downward to a position close to the middle.

[0008] In several embodiments, the middle portion has a trend of gradually shrinking from the tail portion to the head portion.

[0009] In several embodiments, the head portion, the middle portion, and the tail portion are coaxially arranged.

[0010] In several embodiments, a shell is further included, wherein the shell is connected to the tail portion, and the air vent and the liquid vent penetrate into the shell and communicate with the interior of the shell.

[0011] In several embodiments, an air intake cover is disposed on one side of the shell, and a plurality of air intake holes are disposed on the air intake cover, and the air intake holes are connected to the vent holes.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model realizes a notch structure for preventing falling off at the middle position through the coordination of the tail, the middle part and the head part and their shapes and sizes, which can provide an anti-falling effect when piercing into the bottle and ensure safety in use.

[0014] 2. The utility model can lead out the liquid at the bottle mouth through the position design of the liquid through hole, reduce residue, avoid waste and environmental pollution problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are for illustrative purposes only of selected embodiments and do not represent all possible implementations, and should not be considered to limit the scope of the present invention.

[0016] Figure 1 The forward structure of the infusion puncture device in Example 1 is schematically shown;

[0017] Figure 2 The back structure of the infusion puncture device in Example 1 is schematically shown;

[0018] Figure 3 Schematically shows Figure 2 Plane structure;

[0019] Figure 4 Schematically shows Figure 3 cross-sectional structure. DETAILED DESCRIPTION

[0020] Below, the embodiments of the present invention are described in detail. In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Therefore, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the present invention for protection, but merely represents selected embodiments of the present invention. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0022] The terms used herein are intended to explain the embodiments and are not intended to limit and / or define the present invention.

[0023] Example 1

[0024] like Figure 1-Figure 4 As shown, the infusion puncture device in this embodiment mainly includes a puncture portion and a shell 40, and the two can be an integrally formed structure, wherein the puncture portion is used to puncture the infusion bottle to draw out the liquid medicine.

[0025] Specifically, the piercing portion includes a tail portion 10, a middle portion 20 and a head portion 30 which are arranged in sequence. The middle portion 20 is concave inwardly so that the outer diameter of the middle portion 20 is smaller than the outer diameter of the head portion 30 and / or the tail portion 10 at the connected position. An air vent 31 and a liquid hole 32 are respectively arranged on opposite sides of the head portion 30, and both the air vent 31 and the liquid hole 32 extend to the tail portion 10.

[0026] Here, the head 30 is pointed, and the head 30, the middle part 20 and the tail 10 are coaxially arranged, and the middle part 20 has a tendency to gradually shrink from the tail 10 to the head 30, that is, the middle part 20 is generally truncated cone-shaped, thereby forming a step surface structure at the connection between the middle part 20 and the head 30. After the head 30 pierces the rubber stopper of the infusion bottle, the step surface is used as a limit for downward movement to form an anti-falling structure.

[0027] In addition, a liquid passage groove 33 is provided inwardly on one side of the head 30, and the liquid passage groove 33 is connected with the liquid passage hole 32. The liquid passage groove 33 extends downward to a position close to the middle part 20. When the head 30 is inserted into the infusion bottle, the bottom of the liquid passage groove 33 is roughly flush with the rubber stopper of the infusion bottle, thereby allowing the residual liquid medicine at the rubber stopper to be drawn out.

[0028] In addition, the shell 40 is connected to the tail 10, the air vent 31 and the liquid through hole 32 penetrate into the shell 40 and are connected with the inside of the shell 40, and an air intake cover 41 is provided on one side of the shell 40, and a plurality of air intake holes 42 are provided on the air intake cover 41, and the air intake holes 42 are connected with the air vent 31. Another half shell is also provided on the other side of the shell 40, and the two are combined for use. This is a conventional structure in the field and is not further limited here.

[0029] The examples shown in the utility model, the embodiments and special forms of the representation have been shown and described in detail in the drawings and the foregoing description, and should also be considered to be illustrative rather than restrictive. The description of special features in one embodiment does not mean that those special features are necessarily limited to that embodiment. The features of one embodiment can be used in combination with the features of other embodiments, which can be understood by those of ordinary skill in the art, whether or not explicitly described in this way. Exemplary embodiments have been shown and described, and all changes and improvements fall into the spirit of the utility model and are expected to be protected.

Claims

1. An infusion puncture device, comprising a puncture portion, characterized in that: The piercing portion includes a tail portion, a middle portion and a head portion which are arranged in sequence. The middle portion is concave inwardly so that the outer diameter of the middle portion is smaller than the outer diameter of the head portion and / or the tail portion at the connected position. An air vent and a liquid hole are respectively arranged on opposite sides of the head portion, and both the air vent and the liquid hole extend to the tail portion.

2. An infusion puncture device according to claim 1, characterized in that: One side of the head is inwardly recessed and provided with a liquid passage groove, the liquid passage groove is connected with the liquid passage hole, and the liquid passage groove extends downward to a position close to the middle.

3. An infusion puncture device according to claim 2, characterized in that: The middle portion has a tendency to gradually shrink from the tail to the head.

4. The infusion puncture device according to claim 1, characterized in that: The head, middle and tail are coaxially arranged.

5. The infusion puncture device according to claim 1, characterized in that: It also includes a shell, which is connected to the tail portion, and the air vent and the liquid vent penetrate into the shell and communicate with the interior of the shell.

6. The infusion puncture device according to claim 5, characterized in that: An air intake cover is arranged on one side of the shell, and a plurality of air intake holes are arranged on the air intake cover, and the air intake holes are connected with the vent holes.

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