CN211906703U - An intravenous injection model for nursing profession - Google Patents

Abstract

The utility model relates to the field of intravenous injection teaching, and aims to provide an intravenous injection model for nursing profession, which can clearly show two situations of shallow penetration and too deep penetration, and has the advantages of simple structure and strong practicability. The technical solution adopted is: an intravenous injection model for nursing profession, including an arm model and a piercing component for piercing the arm model, the arm model includes simulated skin, simulated subcutaneous tissue and a plurality of simulated venous blood vessels, the Warm water is injected into the simulated vein, the simulated subcutaneous tissue is provided with a hard layer, the side of the hard layer close to the simulated subcutaneous tissue is provided with a groove, and the lower half of the simulated vein is embedded in the groove The upper half of the simulated venous blood vessel is provided with a discoloration layer, and the simulated skin on the outside of the discoloration layer is provided with micropores; the piercing component includes a needle, and the end of the needle away from the needle tip is provided with a needle tube, and the needle tube is The outer wall is coated with temperature-sensitive color-changing paint.

Description

An intravenous injection model for nursing profession

technical field

The utility model relates to the field of intravenous injection teaching, in particular to an intravenous injection model for nursing professions.

Background technique

Intravenous injection uses medical devices such as intravenous syringes or infusion sets to directly inject liquid substances such as blood, medicinal liquids, and nutrient solutions into the veins. In venous blood vessels, nursing students need to do a lot of simulation exercises before the actual operation. In the existing technology, simulation models of arms and other parts are often used. Students practice piercing on the simulation model, which can help students master of intravenous injection techniques. However, the existing simulation model still has the following problems in practical application: during the actual intravenous injection of the patient, if half of the bevel of the needle is outside the blood vessel and the other half is inside the blood vessel, the drug will overflow under the skin during injection, which will make the patient feel uncomfortable. Pain, if the needle is too deep, it penetrates the wall of the contralateral blood vessel, and there is also pain when injecting the drug; the existing simulation model cannot intuitively reflect the depth of penetration when students practice, which makes it difficult for students to control The intensity of penetration affects the efficiency of learning.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide an intravenous injection model for nursing profession, which can clearly show two situations of shallow penetration and too deep penetration, and has the advantages of simple structure and strong practicability.

In order to achieve the purpose of the above utility model, the technical scheme adopted by the present utility model is: an intravenous injection model for nursing profession, including an arm model and a piercing component for piercing the arm model, the arm model including simulated skin, simulated Subcutaneous tissue and a plurality of simulated venous blood vessels, warm water is injected into the simulated venous blood vessels, a hard layer is arranged in the simulated subcutaneous tissue, and a groove is provided on the side of the hard layer close to the simulated subcutaneous tissue, and the The lower half of the simulated venous blood vessel is embedded in the groove; the upper half of the simulated venous blood vessel is provided with a color change layer, and the simulated skin outside the color change layer is provided with a number of micropores;

The piercing assembly includes a needle, the end of the needle away from the needle tip is provided with a needle tube, and the outer wall of the needle tube is coated with a temperature-sensitive color-changing paint.

Preferably, the inside of the hard layer is provided with a cavity, the cavity is provided with a water inlet pipe, one end of the water inlet pipe penetrates the arm model and is connected to a water storage tank, and the water inlet pipe is close to the water storage tank There is a water pump on the pipe body, the other end of the water inlet pipe is connected with the simulated venous blood vessel near the hand side of the arm model, and the end of the simulated venous blood vessel away from the hand side is connected to the end of one end of the water outlet pipe The other end of the water outlet pipe is communicated with the water storage tank.

Preferably, a heating net is provided outside the water inlet pipe inside the cavity, and a temperature sensor for detecting the heating temperature is provided in the cavity.

Preferably, a three-way pipe is provided on the pipe body of the water inlet pipe close to the arm model, the third end of the three-way pipe is connected with a pressure relief valve, and the output end of the pressure relief valve is communicated with the water outlet pipe.

Preferably, the color-changing layer includes a non-woven fabric and cobalt chloride coated on the non-woven fabric.

Preferably, the simulated skin, simulated subcutaneous tissue and simulated venous blood vessels are all made of silicone rubber, and the hard layer is made of PVC.

The beneficial effects of the utility model are embodied in the following: the utility model can clearly show two situations of shallow penetration and too deep penetration, with simple structure and strong practicability; into the simulated venous blood vessel in the arm model, and if the needle is pierced into the blood vessel, the warm water in the blood vessel flows into the needle tube along the needle, and the outer wall of the needle tube is coated with temperature-sensitive color-changing paint, which occurs under the action of warm water. Discoloration, easy to observe whether the blood is returning; if the outer wall of the needle tube has discoloration and the discolored layer does not appear discolored after piercing, it means that the bevel of the needle tip has penetrated into the blood vessel. , it means that the bevel part of the needle tip penetrates into the blood vessel, and at this time, inform the students that the needle needs to be inserted a little more; since the side of the simulated venous blood vessel away from the simulated skin is a hard layer, when the needle tip touches the hard layer, the That is, if no more needles can be inserted at this time, it means that the penetration is too deep, which is convenient for correcting the next piercing practice.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the arm model of the present utility model;

2 is a schematic diagram of the internal structure of the arm model of the present invention;

Fig. 3 is the enlarged view of A part in the structure shown in Fig. 2;

FIG. 4 is a schematic structural diagram of the piercing assembly of the present invention.

Detailed ways

In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in Figures 1-4, an intravenous injection model for nursing profession includes an arm model and a piercing component for piercing the arm model. The piercing component includes a needle 7, and one end of the needle 7 away from the needle tip is provided There is a needle tube 8; the arm model includes a simulated skin 0, a simulated subcutaneous tissue 1 and a plurality of simulated venous blood vessels 2, and the simulated skin 0, simulated subcutaneous tissue 1 and simulated venous blood vessels 2 are all made of silicone rubber, and simulate skin 0 is yellow, the sense of reality is stronger, and the practice is more realistic; the simulated venous blood vessel 2 is injected with warm water, which is heated by pure water without adding any colored pigments, which is easy to clean up, and the warm water is used to simulate blood and is also an arm. The model has a certain temperature, which further increases the sense of reality. The simulated subcutaneous tissue 1 is provided with a hard layer 3, and the side of the hard layer 3 close to the simulated subcutaneous tissue 1 is provided with a groove 4. The simulated vein The lower half of the blood vessel 2 is embedded in the groove 4. In this embodiment, the hard layer 3 is made of PVC, and the needle tip cannot penetrate into the hard layer 3. Therefore, when piercing, if the needle tip cannot be inserted into the needle any more , indicating that the needle tip has been in contact with the surface of the groove 4, that is to say, the needle tip has pierced the simulated venous blood vessel 2, which is convenient for later correction of the depth of penetration; the upper half of the simulated venous blood vessel 2 is provided with a discoloration layer 5, A number of micropores 6 are provided on the simulated skin 0 on the outside of the color-changing layer 5. The color-changing layer 5 includes a non-woven fabric and cobalt chloride coated on the non-woven fabric. The cobalt chloride is blue when it is anhydrous. , since the direction of the discoloration layer and the simulated venous vessel 2 overlap, it is convenient to observe the position of the simulated venous vessel 2; during puncturing, if the bevel of the needle tip is not fully inserted into the simulated venous vessel 2, the simulated venous vessel 2 The water flows out into the color-changing layer 5, and the cobalt chloride turns red when it encounters water, and it can be observed that the blue under the simulated skin 0 turns red. At this time, it is convenient for the students to clearly understand the depth of penetration; After the needle 7 is pulled out, since the simulated venous blood vessel 2 is filled with warm water, the color changes to a certain temperature, and the water in the color-changing layer 5 can be quickly emitted from the micropores 6 and restored from red. In blue, it is convenient for later practice.

Further, in order to judge whether the needle 7 is inserted into the simulated venous blood vessel 2 by whether the blood is returned, the outer wall of the needle tube 8 of the piercing assembly is coated with a temperature-sensitive color-changing paint 9, and the color-changing paint 9 is composed of a variety of basic tones and Therefore, it can be judged whether the needle tube 8 has turned red and whether blood has returned.

Further, the inside of the hard layer 3 is provided with a cavity 10, and the cavity 10 is provided with a water inlet pipe 11. One end of the water inlet pipe 11 penetrates the arm model and is connected with a water storage tank 12. A water pump 13 is provided on the body of the water inlet pipe 11 close to the water storage tank 12, and the other end of the water inlet pipe 11 is connected to the simulated venous blood vessel 2 close to the hand side of the arm model, and the simulated venous blood vessel 2 is far from the hand side. One end of the water outlet pipe 14 is connected to the end of one end of the water outlet pipe 14 , and the other end of the water outlet pipe 14 is communicated with the water storage tank 12 .

Further, in order to realize the heating of the water input into the simulated venous blood vessel 2 , a better practice is that the water inlet pipe 11 is provided with a heating net 15 outside the pipe inside the cavity 10 , and a heating net 15 is provided inside the cavity 10 . There is a temperature sensor for detecting the heating temperature, the temperature sensor detects the heating temperature in real time, and keeps the temperature at 35-38 degrees Celsius.

Further, in order to realize the expansion of the simulated venous blood vessel 2 of the bundled arm, a rubber tube can be directly tied on the side of the arm model away from the hand to simulate the expansion of the venous blood vessel 2 under the action of water pressure. A three-way pipe 16 is provided on the pipe body of the water inlet pipe 11 close to the arm model, the third end of the three-way pipe 16 is connected with a pressure relief valve 17 , and the output end of the pressure relief valve 17 is connected with the water outlet pipe 14 After reaching a certain water pressure, the pressure relief valve 17 is turned on, which can ensure that the excessive expansion of the blood vessel causes irreversible deformation.

It should be noted that, for the sake of simple description, the foregoing method embodiments are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the described action sequence. Because in accordance with the present application, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and units involved are not necessarily required by the present application.

Claims (6)

1. An intravenous injection model for a care professional comprises an arm model and a puncturing assembly for puncturing the arm model; the method is characterized in that: the arm model comprises a simulated skin (0), a simulated subcutaneous tissue (1) and a plurality of simulated vein vessels (2), warm water is injected into the simulated vein vessels (2), a hard layer (3) is arranged in the simulated subcutaneous tissue (1), a groove (4) is formed in one side, close to the simulated subcutaneous tissue (1), of the hard layer (3), and the lower half part of the simulated vein vessel (2) is embedded in the groove (4); the upper half part of the simulated vein vessel (2) is provided with a color changing layer (5), and the simulated skin (0) positioned at the outer side of the color changing layer (5) is provided with a plurality of micropores (6);

the piercing assembly comprises a needle (7), one end, far away from the needle point, of the needle (7) is provided with a needle tube (8), and the outer wall of the needle tube (8) is coated with temperature-sensitive color-change paint (9).

2. The intravenous injection model for care professionals of claim 1, wherein: the inside of stereoplasm layer (3) is equipped with cavity (10), be equipped with inlet tube (11) in cavity (10), the arm model is worn out and is connected with water storage box (12) to the one end of inlet tube (11), be equipped with water pump (13) on the body that inlet tube (11) are close to water storage box (12), the other end of inlet tube (11) links to each other with simulation vein (2) that are close to the hand side of arm model, the tip in a outlet pipe (14) one end is all connected to the one end that the hand side was kept away from in simulation vein (2), the other end and water storage box (12) of outlet pipe (14) are linked together.

3. The intravenous injection model for care professionals of claim 2, wherein: the heating net (15) is arranged outside the pipe body of the water inlet pipe (11) in the cavity (10), and a temperature sensor used for detecting the heating temperature is arranged in the cavity (10).

4. The intravenous injection model for care professionals of claim 2, wherein: the three-way pipe (16) is arranged on the pipe body, close to the arm model, of the water inlet pipe (11), the third end of the three-way pipe (16) is connected with a pressure release valve (17), and the output end of the pressure release valve (17) is communicated with the water outlet pipe (14).

5. The intravenous injection model for care professionals of claim 1, wherein: the color change layer (5) comprises non-woven fabric and cobalt chloride coated on the non-woven fabric.

6. The intravenous injection model for care professionals of claim 1, wherein: the simulated skin (0), the simulated subcutaneous tissue (1) and the simulated vein (2) are all made of silicon rubber, and the hard layer (3) is made of PVC.

Images