CN209933664U - Anti-pull-off infusion apparatus - Google Patents

Abstract

The utility model discloses an anti-drawing transfusion system that takes off, including the puncture needle head, the top of puncture needle head one side, intermediate position and bottom department all are provided with the through-hole, the top in the puncture needle head outside is provided with the barb, and the barb is the slope structure, the bottom of puncture needle head is connected with first transfer line, the top in the first transfer line outside is provided with the stopper, and is located to be connected with the go-between the stopper on the first transfer line outside top, one side of go-between is connected with the connecting band. The utility model discloses a be provided with the go-between in the outside of first transfer line, the go-between is connected with the buckle through the connecting band, and one side of buckle is provided with the V-arrangement fluting, after the puncture syringe needle stabs into the bottle plug, can pass through the V-arrangement fluting with annotate the bottleneck looks block of liquid bottle with the buckle, under the effect of connecting band, even drag the transfer line, the puncture needle head also can not drop, after the infusion is accomplished, take off the buckle can, the phenomenon that the pulling-off can not appear.

Description

A kind of anti-pull infusion set

technical field

The utility model relates to the field of medical technology, in particular to an anti-pull-off infusion set.

Background technique

The infusion set is a medical device for infusion. The infusion method is to suspend the liquid in a bottle or infusion bag at a high place, and use the action of gravity to make the liquid flow into the vein through the infusion tube. The clip on the tube is used for manual adjustment. The adjustment index is to see the dripping speed in the dropper, most of which are one-time use.

During the infusion of the existing infusion set, for some patients with poor self-control ability such as children and the elderly, the puncture needle of the infusion set will be pulled out carelessly. Waste of liquid; in the existing infusion set, the puncture needle is inserted into the stopper of the infusion bottle or infusion bag, and the top of the puncture needle will extend a section from the inside of the bottle mouth. When the liquid level in the infusion bottle or infusion bag is lower than the puncture needle When it is used, it cannot continue to be injected, and a part of the medicinal liquid will remain in the infusion bottle or infusion bag, causing waste; most of the existing infusion sets are one-time use. It will be reused and cause cross infection.

Utility model content

(1) Technical problems solved

The purpose of the utility model is: in order to solve the phenomenon that the existing infusion set is prone to pull off during infusion; a part of the medicinal liquid will remain in the infusion bottle or infusion bag; after the use is completed, there is no obvious after-use mark The problem is to provide a pull-off infusion set.

(2) Technical solutions

In order to achieve the above purpose, the present invention provides the following technical solutions: an anti-pull-off infusion set, comprising a puncture needle, the top, middle and bottom ends of one side of the puncture needle are provided with through holes, The top of the outer side is provided with barbs, and the barbs are in an inclined structure, the bottom of the puncture needle is connected with a first infusion tube, the top of the outer side of the first infusion tube is provided with a limit block, and the top of the outer side of the first infusion tube is located at the bottom of the first infusion tube. A connecting ring is connected between the limit blocks, one side of the connecting ring is connected with a connecting belt, and the connecting ring is connected with a buckle through the connecting belt, one side of the buckle is provided with a V-shaped slot, and the buckle is The side of the buckle away from the V-shaped slot is provided with a pull ring, the end of the first infusion tube is connected with an exhaust cylinder, and the bottom of the exhaust cylinder is connected with a second infusion tube, which is installed on the second infusion tube There is a flow regulator, the end of the second infusion tube is connected with a third infusion tube, and the end of the third infusion tube is connected with a liquid injection needle.

Preferably, the number of the barbs is two groups, and the two groups of barbs are symmetrically arranged about the longitudinal center axis of the puncture needle.

Preferably, the connecting ring and the first infusion tube are movably connected.

Preferably, the material of the connecting belt is polyvinyl chloride plastic.

Preferably, the pull ring has a ring structure, and the pull ring is made of hard plastic.

Preferably, the first infusion tube, the second infusion tube and the third infusion tube are all made of TPE material.

(3) Beneficial effects

Compared with the prior art, the present invention provides an anti-pulling-off infusion set, which has the following beneficial effects: the present invention is provided with a connecting ring on the outer side of the first infusion tube, and the connecting ring is connected with a buckle through a connecting belt , and one side of the buckle is provided with a V-shaped slot. When the puncture needle pierces the bottle stopper, the buckle can be engaged with the bottle mouth of the injection bottle through the V-shaped slot. Even if the infusion tube is dragged, the puncture needle will not fall off. After the infusion is completed, just remove the buckle, and there will be no pull-off phenomenon; The through hole is connected to the internal passage of the puncture needle. When the liquid level in the injection bottle is lower than the top of the puncture needle, it will flow into the injection pipe through the through hole. When the liquid level is lower than the through hole at the bottom end , the liquid in the injection bottle will run out to avoid unnecessary waste of the liquid; by setting the barb on the top of the outer side of the puncture needle, the barb has an inclined structure, and when the puncture needle is inserted, the barb is squeezed by the bottle stopper When the puncture needle is completely inserted, the barb is reset and opened. After the injection is completed, the puncture needle is pulled out, the barb is broken, and an obvious post-use mark is added to prevent secondary use by criminals.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the buckle of the utility model;

3 is a schematic structural diagram of the puncture needle of the present invention.

In the figure: 1. Puncture needle; 2. Through hole; 3. Barb; 4. First infusion tube; 5. Limit block; 6. Connecting ring; 7. Connecting belt; 8. Buckle; 10. Pull ring; 11. Exhaust cylinder; 12. Second infusion tube; 13. Flow regulator; 14. Third infusion tube; 15. Liquid injection needle.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Fig. 1-3, an anti-pull-off infusion set includes a puncture needle 1, the top, middle and bottom ends of one side of the puncture needle 1 are provided with through holes 2, and the top of the outer side of the puncture needle 1 is provided with an inverted The thorn 3, and the barb 3 is in an inclined structure, the bottom of the puncture needle 1 is connected with a first infusion tube 4, the top of the outer side of the first infusion tube 4 is provided with a limit block 5, and the outer top of the first infusion tube 4 is located at the limit block A connecting ring 6 is connected between 5, one side of the connecting ring 6 is connected with a connecting belt 7, and the connecting ring 6 is connected with a buckle 8 through the connecting belt 7, and one side of the buckle 8 is provided with a V-shaped slot 9, and the clamping The side of the buckle 8 away from the V-shaped slot 9 is provided with a pull ring 10, the end of the first infusion tube 4 is connected with an exhaust cylinder 11, and the bottom of the exhaust cylinder 11 is connected with a second infusion tube 12, and the second infusion tube 12 A flow regulator 13 is installed thereon, a third infusion tube 14 is connected to the end of the second infusion tube 12 , and a liquid injection needle 15 is connected to the end of the third infusion tube 14 .

In the present invention, a connecting ring 6 is arranged on the outer side of the first infusion tube 4, the connecting ring 6 is connected with a buckle 8 through a connecting belt 7, and a V-shaped slot 9 is arranged on one side of the buckle 8, so that when the puncture needle 1 After piercing the bottle stopper, the buckle 8 can be engaged with the bottle mouth of the liquid injection bottle through the V-shaped slot 9. Under the action of the connecting belt 7, even if the infusion tube is dragged, the puncture needle 1 will not fall off. , after the infusion is completed, just remove the buckle 8, and there will be no pull-off phenomenon; through the top of the outer side of the puncture needle 1, the middle position and the bottom are provided with a through hole 2, the through hole 2 and the puncture needle 1 are provided with The internal passages are connected. When the liquid level in the injection bottle is lower than the top of the puncture needle 1, it will flow into the injection pipe through the through hole 2. When the liquid level is lower than the through hole 2 at the bottom, the injection bottle will flow. The liquid inside is drained to avoid unnecessary waste of liquid medicine.

Please refer to FIG. 1 and FIG. 3 emphatically, the number of barbs 3 is two groups, and the two groups of barbs 3 are symmetrically arranged about the longitudinal center axis of the puncture needle 1. In the present invention, two groups of barbs 3 are arranged, and the puncture needle 1 is located at the center of the puncture needle 1. In the process of puncturing, the two groups of barbs 3 were squeezed and then contracted. When the puncture needle 1 was completely pierced, the two groups of barbs 3 were reset and opened. After the infusion was completed, when the puncture needle 1 was pulled out, the two groups of barbs were 3 Forced to break.

Please refer to Fig. 1 emphatically, the connection ring 6 is movably connected with the first infusion tube 4, the present invention can flexibly connect the connection ring 6 with the first infusion tube 4, and the connection ring 6 can be rotated according to actual needs to make the connection Band 7 is in a different position.

Please refer to FIG. 1 and FIG. 2 emphatically. The material of the connecting belt 7 is polyvinyl chloride plastic. By setting the material of the connecting belt 7 to be polyvinyl chloride plastic, the material of the connecting belt 7 can be made softer and stronger.

Please refer to FIG. 1 and FIG. 2 emphatically, the pull ring 10 is in a ring structure, and the material of the pull ring 10 is hard plastic. The present invention can improve the comfort of the pull ring 10 by setting the pull ring 10 as a ring structure. By setting the material of the pull ring 10 to be hard plastic, it is convenient for the operator to exert force.

Please refer to FIG. 1, the first infusion tube 4, the second infusion tube 12 and the third infusion tube 14 are all made of TPE material. The material of 14 is set to TPE, which has high transparency, no absorption of drugs at all, and simple processing technology.

Working principle: First insert the puncture needle 1 into the injection bottle. During the insertion process, the barbs 3 on both sides of the puncture needle 1 are squeezed and contracted by the bottle stopper. When the puncture needle 1 is completely inserted, the barbs 3 are reset. Open, through the pull ring 10, use the V-shaped slot 9 on one side of the buckle 8 to engage the buckle 8 with the bottle mouth, insert the injection needle 15 into the human vein, and carry out infusion, through the flow regulator 13 To control the dripping speed, for children, the elderly and other patients with poor behavioral control ability, the infusion tube will be dragged during the infusion process. Because the buckle 8 is engaged with the bottle mouth, the connection ring 6 is connected to the first infusion tube 4. Connection, under the action of the connecting belt 7, the puncture needle 1 is not easy to be pulled out. During the injection process, when the liquid level in the infusion bottle is lower than the top of the puncture needle 1, the medicinal liquid can also pass through the puncture needle 1 side. The three groups of through holes 2 circulate. When the liquid level is lower than the through hole 2 at the bottom end of the puncture needle 1, the liquid in the injection bottle will be exhausted. , use the V-shaped slot 9 on the side of the buckle 8 to separate the buckle 8 from the bottle mouth, and pull out the puncture needle 1. During the process of pulling out the puncture needle 1, the barb 3 is broken by force, and the infusion after use The device has obvious signs of breakage at the puncture needle 1 to prevent illegal elements from using it twice.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides an anti-pulling transfusion system, includes puncture needle head (1), its characterized in that: the puncture needle comprises a puncture needle head (1), a puncture needle head and a connecting ring, wherein the top end and the middle position of one side of the puncture needle head (1) are provided with through holes (2), the top end of the outer side of the puncture needle head (1) is provided with barbs (3), the barbs (3) are of an inclined structure, the bottom of the puncture needle head (1) is connected with a first infusion tube (4), the top end of the outer side of the first infusion tube (4) is provided with a limiting block (5), the top end of the outer side of the first infusion tube (4) is located between the limiting blocks (5) and is connected with the connecting ring (6), one side of the connecting ring (6) is connected with the connecting band (7), the connecting ring (6) is connected with a buckle (8) through the connecting band (7), one side of the buckle (8) is provided with a V-shaped slot (9), one side of the, the bottom of the exhaust funnel (11) is connected with a second infusion tube (12), a flow regulator (13) is installed on the second infusion tube (12), the tail end of the second infusion tube (12) is connected with a third infusion tube (14), and the tail end of the third infusion tube (14) is connected with an injection needle (15).

2. The pull-off prevention infusion set according to claim 1, wherein: the number of barb (3) is two sets of, and two sets of barb (3) are about the vertical axis symmetry setting of puncture syringe needle (1).

3. The pull-off prevention infusion set according to claim 1, wherein: the connecting ring (6) is movably connected with the first infusion tube (4).

4. The pull-off prevention infusion set according to claim 1, wherein: the connecting belt (7) is made of polyvinyl chloride plastic.

5. The pull-off prevention infusion set according to claim 1, wherein: the pull ring (10) is of a circular ring structure, and the pull ring (10) is made of hard plastic.

6. The pull-off prevention infusion set according to claim 1, wherein: the first infusion tube (4), the second infusion tube (12) and the third infusion tube (14) are all made of TPE materials.

Images