CN112116857A - A low-cost portable nursing injection training set - Google Patents

Abstract

The invention relates to the technical field of medical model devices, in particular to a low-cost portable nursing and injection training suit, comprising a puncture base, an infusion support, a blood support, an infusion bag, a puncture arm, a blood supply device, a self-made liquid collection bag and a puncture The training device, the infusion bag is installed on the infusion support, the lower end of the infusion bag is provided with a tee, and the other two ends of the tee are connected to a one-way connector with a hose, and the other end is connected with a hose connector leather needle, which has the advantages of: Strong practicality, innovation and novelty, for medical students, this low-cost portable nursing injection training set can not only train all injection methods of clinical medicine, but also train all operation procedures of these injection methods, which greatly The clinical teaching environment has been improved, and the teaching quality and efficiency have been improved.

Description

A low-cost portable nursing injection training set

technical field

The invention relates to the technical field of medical model devices, in particular to a low-cost portable nursing injection training suit.

Background technique

Commonly used injection methods include intradermal injection of ID, subcutaneous injection of H, intramuscular injection of IM, and intravenous injection of IV.

Intradermal injection is a method of injecting a small amount of liquid medicine or biological product between the epidermis and dermis. Objective: Allergy test, vaccination, initial steps of local anesthesia. Implementation points: 5-degree needle injection, 0.1ml of liquid medicine, observation results after 15-20min, and 0.1% epinephrine hydrochloride for allergy test.

Subcutaneous injection is a method of injecting a small amount of liquid medicine or biological product into the subcutaneous tissue. Objective: It is not advisable to take a small amount orally, and it takes a certain period of time to develop efficacy, vaccination, and local administration (local anesthesia). Implementation points: The angle of needle insertion is 30 degrees to 40 degrees. It is not suitable for use if it is irritating to the skin. Long-term injectors take turns to change the injection site.

Intramuscular injection is a method of injecting a certain amount of liquid medicine into muscle tissue. Purpose: It is not suitable/inappropriate for oral/intravenous injection, and the drug effect needs to be faster than subcutaneous. Implementation points: The angle of needle insertion is 90 degrees, the positioning method is mastered, the lying position is suitable, the long-term injectors take turns to change the injection site alternately, and use slender needles.

Intravenous injection is a method of injecting a small amount of sterile liquid medicine into the body through a vein. Purpose: It is not suitable for oral/subcutaneous injection/intramuscular injection, and it needs to act quickly; it is required for diagnostic treatment; infusion (nutrition therapy), blood transfusion. Among them, the implementation points of the limbs: the angle of needle insertion is 15 degrees to 30 degrees, from small to large, from far to near, and the pulse pressure belt is tied at the upper 6cm, and then the medicine is pushed inside.

Among the above four injection methods, the main point of the first three injection methods is to train the angle and depth of needle insertion during puncture, and administer the drug as needed, under the condition of selecting the correct site. The point of intravenous injection is to select the correct site, insert the scalp needle/indwelling needle into the patient's blood vessel with the correct needle angle and depth and fix it on the patient. In comparison, the puncture of the intravenous injection method is more difficult, and the wrong operation may cause the patient to suffer unnecessary pain; on the contrary, if the puncture is correct, there will be obvious blood return in the needle.

Products currently on the market can usually train one or more of the above injection methods, but there is no product that can train all injection methods. Many companies' products can only train the most critical point in the injection method, that is, correct puncture, but in clinical medicine, not only the puncture itself, but also the correct operation process is also crucial. In the usual training, cultivate the correct operation. Process habits are very necessary.

At present, many companies have developed products that simulate intravenous injection. Some products only train the puncture operation and are not equipped with infusion devices. These products are to hoist the simulated blood bag on the infusion stand, and use the height difference of the liquid to inject the blood into the simulated arm. A collection bag will be placed at the end of the arm. Another part of the product is equipped with an infusion device. During the correct infusion operation, the blood pressure in the blood vessel must be large enough. After the puncture is correct, there will be obvious blood return. In order to achieve this purpose, these products often wrap the simulated blood very high. Or add an electric drive. On the contrary, if the liquid pressure of the simulated blood in the simulated arm is high, a large amount of simulated blood will seep out of the simulated blood vessel hole previously punctured, making the punctured arm dirty. All of these products have relatively large arms and a single type of blood vessels. The traditional skin color puncture makes it impossible for the user to observe the puncture angle and depth of the puncture needle. The parts of the product are basically scattered in the aluminum box. It is time-consuming to find accessories in the middle, and it is not convenient enough to carry.

For example, the multi-intravenous injection training arm combination of laerdal company, this product is equipped with the whole arm and the deltoid muscle of the upper arm. Users can practice subcutaneous injection, intramuscular injection and intravenous injection. Needle entry angle and depth. This product does not have an intradermal injection device, and the product does not provide an infusion stand and a blood stand, so that even if the product needs to perform a single puncture exercise, it needs its own stent to hoist blood, and the structure of the product does not support the user to perform a complete infusion exercise. This product does not provide other fixed bottom surface and support, which makes the operator's arm easily deviate during use, which is not conducive to operation. And the outer packaging of the product is an aluminum box, which is bulky and difficult to carry.

Another example is the artificial vein arm of KYOTO KAGAKU. Although this product provides arms of various sizes, each arm is equipped with different blood vessels and its own support base, which can train the intravenous injection of blood vessels of different ages. All the pierced hand skins are of conventional skin color. Due to the variety of arm models, it is inconvenient to carry around. The product provides an external blood supply device driven by electricity, so that the blood bag does not need to be hung high, but at the same time, it also increases the production cost and convenience of use of the product. This product does not support intradermal, subcutaneous, intramuscular and infusion functions.

At present, all the products only provide models for injection, and do not provide various accessories for clinical medicine, so it is impossible to use the products to simulate the entire operation process of clinical medicine.

To this end, we propose a low-cost portable nursing injection training set for medical education to solve the above problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the deficiencies of the prior art and provide a low-cost portable nursing injection training set, which is universally practical, innovative in design, convenient in use, and easy to store and carry.

In order to achieve the above purpose, a low-cost portable nursing and injection training suit is designed, which includes a puncture base, an infusion support and a blood support, and is characterized in that it also includes an infusion bag, the infusion bag is installed on the infusion support, and the lower end of the infusion bag is provided with a tee , connect the other two ends of the tee, one end is connected with a one-way joint with a hose, and the other end is connected with a hose joint with a leather needle; the puncture arm includes an arm body, and the rear end of the arm body has a mounting base surface. The outer sides of both sides are equipped with T-shaped grooves for assembling the puncture arm into the corresponding straight rod positioning pin on the puncture base. The T-shaped groove includes a horizontal section and a In the vertical section, the T-shaped groove is inserted along the straight rod positioning pin and the straight rod positioning pin is matched and connected to both ends of the vertical section, so as to realize the connection between the puncture arm and the puncture base, And the puncture arm uses the straight rod positioning pin as the rotating shaft to lift the puncture arm, the puncture arm is also provided with a connecting groove for connecting the puncture device, and the arm main body is provided with a connection to the puncture arm. The connecting channel of the connecting groove is used for the simulated blood vessel to pass through, and the outer end of the connecting channel is communicated with the outer end surface of the puncturing arm.

Preferably, the piercing base is made by screwing two symmetrical uprights on the bottom plate, installing two straight rod positioning pins on the inner side of the uprights, and installing two encapsulated magnets on the outer side of the uprights.

Preferably, the infusion support is composed of two hollow steel pipes, the upper end of the upper half of the steel pipe is welded with hooks for hanging the infusion bag, and the upper end of the lower half of the steel pipe is equipped with a hand screw for fixing the upper half of the steel pipe to the lower half of the steel pipe. In the half-section of the steel pipe, the lower end of the lower half-section of the steel pipe is processed with external threads for screwing into the internal threaded holes on the outside of the blood stent.

Preferably, the blood support is made of iron galvanized parts, which can be adsorbed and fixed by the encapsulated magnet, and the lower end is welded with an inner thread fixing block.

Preferably, the piercing arm includes a foam arm body and a piercing hand skin. The pierced hand skin is worn on the outer side of the foam arm body, and is closed by a zipper.

Preferably, the inner end of the connection channel is communicated with the rear side of the connection groove, and the outer end of the connection channel is communicated with the outer side of the rear end of the arm body.

Preferably, the puncture device includes a simulated meat mass and a simulated blood vessel, two ends of the simulated blood vessel are respectively connected with a male Luer head and a female Luer head, and the male Luer head and the female Luer head can be respectively connected to two ends of the positive pressure connector, The body of the puncturing device can be clamped in the connecting groove.

The low-cost portable nursing injection training set of the present invention also includes the following components:

The blood supply device includes a syringe body, the front end of the syringe body is connected with a double-ended female Luer connector and a positive pressure connector, and the blood supply device is installed on the blood support.

Self-made collection bag, the self-made collection bag is to connect a piece of hose to the outlet of a collection bag, and install a pulley control switch on the hose, and connect the male Luer head to the other end of the hose .

The puncture trainer is composed of a Y-type tee joint and three hoses connected to it. The three hoses are respectively connected to a one-way joint, a syringe, and a scalp needle.

Compared with the prior art, the present invention has the advantages of universal practicability, innovative conception, novel design, convenient use, tidy storage, can be carried around, can meet the needs of medical personnel for training on all injection methods, simulate the real softness of the back of the hand, And provide different puncture device replacement, and also provide transparent puncture hand skin replacement, so that it can simulate the blood vessel state of different ages in the actual population (the thickness of blood vessels is different, the hardness is different), and can also intuitively observe the needle insertion during intravenous injection. angle and depth. After successful intravenous injection, there is obvious blood return, which can intuitively judge whether the puncture is correct, and can perform infusion operations and drip counting operations during the infusion process. This product can also be injected intradermally, subcutaneously, and intramuscularly. This product provides a complete set of accessories, which can simulate the entire operation process of clinical medical injection method. For medical students, this low-cost portable nursing injection training set can not only train all injection methods of clinical medicine, but also train all operation procedures of these injection methods, which greatly improves the clinical teaching environment, improves the teaching quality and efficiency. At the same time, such a complete low-cost portable nursing injection training set is easy to store and tidy, and can be carried around, allowing learners to practice anytime and anywhere and improve their professional ability.

This product has strong practicability, which is mainly manifested in: the product has strong comprehensiveness, can train all injection methods of clinical medicine, and can also train all operation procedures of these injection methods. This product not only provides the traditional skin color puncture hand skin, but also provides a transparent puncture hand skin replacement, so that the operator can clearly observe the angle and depth of the puncture needle during the intravenous injection.

This product is highly innovative, mainly as follows: this product is designed with a T-slot at the back end of the puncture arm, which enables the puncture arm to be easily removed and installed from the puncture base, and the design of the T-slot The puncture arm has two states of palm-up (for intradermal injection) and back of the hand (for back-of-hand puncture), and the puncture arm can be raised and lowered flexibly along the upper end of the vertical section of the T-slot. The magnetic stand design of this product makes the stand assembly and disassembly very simple. Most importantly, this product innovatively modifies the end of the infusion bag. After the modification, when the infusion operation is performed correctly, even if the fluid pressure in the simulated blood vessel is not large, the blood return is obvious after the successful puncture of the venous infusion.

This product has a strong novelty, which is mainly reflected in: our products are very different from the products currently on the market: we have adopted a backpack design, which is light and easy to carry; our accessories are complete, users can carry out in any environment. Operation; we are simple, practical, easy to assemble, and easy to operate in product design; our use functions are complete, the closest to medical clinics.

Description of drawings

Fig. 1 is the use state diagram of the intravenous injection training suit of the present invention in one embodiment;

2 is a schematic structural diagram of the puncture arm interior and the puncture device of the present invention in one embodiment;

3 is a schematic structural diagram of the interior of the puncture arm of the present invention in one embodiment;

Fig. 4 is the structural representation of the self-made infusion bag of the present invention in one embodiment;

5 is a schematic structural diagram of a self-made collection bag of the present invention in one embodiment;

6 is a schematic structural diagram of a puncture trainer of the present invention in one embodiment;

In the figure: 1, puncture base; 2, self-made infusion bag; 3, infusion support; 4, blood support; 5, blood supply device; 6, puncture arm; 7, puncture device; 8, self-made collection bag; 9, connection channel; 10, connecting groove; 11, puncture trainer.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings, and the structure and principle of the present invention will be very clear to those skilled in the art. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

Referring to FIG. 1, the present embodiment provides a low-cost portable nursing and injection training set, the main components of which include: a puncture base 1, a self-made infusion bag 2, an infusion support 3, a blood support 4, a blood supply device 5, a puncture arm 6, Puncture device 7 , self-made liquid collection bag 8 , puncture trainer 11 . In addition, the set is also equipped with many accessories, including: muscle module, scalp needle, indwelling needle, heparin cap, infusion film, transparent film, blood powder, tourniquet, iodine cotton swab, disposable towel, medical mask, black Trash can, yellow trash can, operation pad, treatment tray, label sticker, sharps box, doctor's order sheet, gauze, empty bottle for blood adjustment, 1ml syringe, 2ml syringe, 5ml syringe, 10ml syringe. The main components are described below with examples.

In the puncture base 1, two symmetrical uprights are screwed on the bottom plate, two straight rod positioning pins are installed on the inner side of the uprights, and two rubber-coated magnets are installed on the outer side of the uprights.

The lower end of the self-made infusion bag 2 is connected with a tee, and the other two ends of the tee are connected to a one-way joint with a hose at one end, and a leather needle with a hose joint at the other end. Using the principle of one-way entry and exit of the one-way joint, during the infusion operation, after the puncture is successful, even if the simulated blood pressure in the simulated blood vessel is not high, there is obvious blood return in the scalp needle.

The infusion support 3 is composed of two hollow steel pipes. The upper end of the upper half of the steel pipe is welded with hooks, which can hang the self-made infusion bag 2. Fixed in the lower half of the steel pipe. The lower end of the lower half of the steel pipe is processed with external threads, which can be screwed into the internal threaded holes on the outside of the blood stent 4 .

The blood stent 4 is an iron galvanized part, which can be adsorbed and fixed by a rubber-coated magnet. It is formed by bending a sheet metal part into a required shape, and an internal thread fixing block is welded at the lower end. The blood support 4 is connected to the blood supply device 5 by clamping, bonding, welding or other connection methods, for example, a ring is provided on the upper end of the blood support 4, and the blood supply device 5 can be inserted directly into it.

The blood supply device 5 includes a syringe body with a capacity of 50ml, and a double-ended female Luer connector and a positive pressure connector are connected to the front end of the syringe body. One end of the double-ended female luer head is connected to the front end of the syringe body with a capacity of 50ml, and the other end is connected to the positive pressure connector. During all operations, the blood supply device 5 is an integral device and does not need to be disassembled.

The puncturing arm 6 includes a foam arm body and a puncturing hand skin. The pierced hand skin is worn on the outer side of the foam arm body, and is closed by a zipper. The rear end of the arm body has an installation base surface, and both sides of the installation base surface are provided with T-shaped grooves, and the puncture arm 6 can be assembled into the straight rod positioning pin corresponding to the puncture base 1. It is shown that the T-shaped groove includes a horizontal section and a vertical section connected with the inner end of the horizontal section. The T-shaped groove is inserted along the straight rod positioning pin and the straight rod positioning pin is matched to connect The two ends of the vertical section (selected according to the usage situation: during intravenous injection, the back of the hand is upward; during intradermal injection, the palm of the hand is upward), so as to realize the connection between the puncture arm 6 and the puncture base 1, and the puncture arm. 6. The straight rod positioning pin can be used as the rotation axis to lift the puncture arm 6, which is convenient for the operator to tie a tourniquet during operation. In addition, as shown in FIG. 2 , the puncturing arm 6 is also provided with a connecting groove for connecting the puncturing device 7, and the arm body is provided with a connecting channel that communicates with the connecting groove. For the simulated blood vessel to pass through, the outer end of the connecting channel is communicated with the outer end surface of the puncturing arm 6 . Preferably, the inner end of the connection channel is communicated with the rear side of the connection groove, and the outer end of the connection channel is communicated with the outer side of the rear end of the arm body.

The puncture device 7 includes a simulated meat mass and a simulated blood vessel. For example, as shown in FIG. 2 , both ends of the simulated blood vessel are respectively connected with a male Luer head and a female Luer head, and the male Luer head and the female Luer head can respectively Connect both ends of the positive pressure fitting. The body of the puncture device 7 can be clamped in the connection groove, and preferably, the body of the puncture device 7 and the connection groove are set in a corresponding trapezoid shape.

The self-made liquid collection bag 8 is made by connecting a piece of hose to the outlet of a liquid collection bag, and a pulley control switch is installed on the hose, and a male luer head is connected to the other end of the hose.

The puncture trainer 11 is composed of a Y-shaped three-way connector and three hoses connected to it. The three hoses are respectively connected to a one-way connector, a 10ml syringe (no needle) and a scalp needle.

Example 1

A method of using the described nursing injection training suit is shown in this embodiment, which is as follows:

Step 1: Take out the required parts from the nursing injection package as needed. The puncture device 7 has been assembled in the puncture arm 6 when leaving the factory, and the puncture arm 6 has been assembled inside the two uprights of the puncture base 1 .

Step 2: The circular plane at the lower end of the blood stent 4 is sucked onto the encapsulated magnet outside the puncture base 1 , and the blood supply device 5 is directly inserted into the ring at the upper end of the blood stent 4 .

Step 3: Tighten the female luer head on the puncture device 7 and the male luer head on the self-made liquid collection bag 8, and close the pulley switch on the self-made liquid collection bag.

Step 4: Tighten the male luer head on the puncture device 7 and the positive pressure connector on the blood supply device 5.

Step 5: After using blood powder to prepare simulated blood in an empty bottle for adjusting blood, pour it into the main body of the 50ml syringe of the blood supply device 5 .

Step 6: Turn on the pulley switch on the self-made collection bag 8. At this time, the simulated blood in the main body of the 50ml syringe of the blood supply device 5 will slowly flow into the simulated blood vessel of the puncture device 7. When the self-made collection bag is seen When the simulated blood flows into 8 and there is no bubble column, close the pulley switch on the self-made collection bag 8. Next, the user can use the puncture trainer 11 to perform repeated puncturing exercises on the device according to the knowledge he has learned.

If the user wants to experience the feeling of puncturing the blood vessels of patients of different ages, it is necessary to replace different puncturing devices 7, and the specific operation steps are as follows:

Step 1: Unscrew the male luer head on the puncture device 7 from the positive pressure connector on the blood supply device 5, raise the male luer head on the puncture device 7 to prevent the simulated blood from flowing out, and open the self-made liquid collection at the same time. The pulley switch on the bag 8. At this time, the simulated blood in the simulated blood vessel of the puncture device 7 will flow into the self-made collection bag 8. When no more liquid flows in, connect the female Luer head on the puncture device 7 to the self-made collection bag. The male luer head on the fluid bag 8 is unscrewed, and the simulated blood in the self-made fluid collection bag 8 is recovered into the 50ml syringe body of the blood supply device 5 .

Step 2: Lift the puncture arm 6, pull open the zipper on the palm side of the puncture hand skin, and remove it to the position where the puncture device 7 is exposed, and remove the simulated meat piece of the puncture device 7 from the connection groove of the puncture arm 6. Pull out, and then pull out the male and female luer connectors at the end of the simulated blood vessel of the puncture device 7 from the hole at the end of the connecting channel of the puncture arm 6 , this process is called taking the puncture device 7 out of the puncture arm 6 . If you want to clean the puncture device 7 immediately, you can take it to the toilet together with the 10ml syringe, insert the syringe filled with clean water into the female luer head of the puncture device 7, push the piston rod to flush the simulated blood vessel of the puncture device 7, repeat several times until the liquid is colorless and transparent after flushing, and finally empty the liquid with a syringe.

Step 3: Take out the other puncture device 7 from the nursing injection bag, insert the male Luer head and the female Luer head of the simulated blood vessel tail of the puncture device 7 into the hole at the end of the connection channel of the puncture arm 6, so as to reach the Outside the installation base of the rear end of the puncture arm 6, put the simulated meat mass of the puncture device 7 into the connection groove of the puncture arm 6, and arrange the simulated blood vessels of the puncture device 7 to match the connection channel of the puncture arm 6. This process is called The puncturing device 7 is mounted on the puncturing arm 6 . Then put on the pierced hand skin of the pierced arm 6 and close the zipper. Of course, at this time, the dismantled and cleaned puncture device 7 can also be put into the care injection bag.

Step 4: Tighten the female luer head on the puncture device 7 and the male luer head on the self-made liquid collection bag 8, and close the pulley switch on the self-made liquid collection bag 8 at the same time. Tighten the male luer head of the puncture device 7 with the positive pressure connector of the blood supply device 5 .

Step 5: Turn on the pulley switch on the self-made collection bag 8. At this time, the simulated blood in the main body of the 50ml syringe of the blood supply device 5 will slowly flow into the simulated blood vessel of the puncture device 7. When the self-made collection bag is seen When the simulated blood flows into 8 and there is no bubble column, close the pulley switch on the self-made collection bag 8. Next, the user can use the puncture trainer 11 to perform repeated puncturing exercises on the device according to the knowledge he has learned.

Example 2

In addition to a usage situation described in Example 1, another usage method of the described nursing injection training suit is shown in this example, which is specifically as follows:

Step 1: Refer to the basic operation process of Example 1 until the device is assembled.

The second step: screw the outer thread of the infusion support 3 into the inner thread of the blood support 4, adjust the height of the infusion support 3 to a suitable position, and hang the self-made infusion bag 2 on the hook on the upper end of the infusion support 3.

Step 3: Insert the vacant hose at the lower end of the self-made infusion bag 2 into the connector at the end of the scalp needle. Next, the user can use the scalp needle to perform intravenous infusion exercises on the device according to the knowledge they have learned. After the puncture is correct, the blood return can be clearly seen. Turn on the roller switch of the self-made infusion bag 2 to perform simulated infusion, and then turn on the pulley switch on the self-made infusion bag 8. The infusion liquid will be collected by the self-made infusion bag 8, and the user can Observe and adjust the titration state of the drip during infusion from the titrator.

Example 3

Another method of using the described nursing injection training suit is shown in this embodiment, which is as follows:

Step 1: Put the intradermal injection coat on the outside of the piercing arm 6 .

Step 2: Assemble the puncture arm 6 on the puncture base 1, with the palm facing upward. The operator can inject intradermally in the correct position, can achieve a 5-degree needle entry angle, and when correctly manipulated, a real skin mound will appear.

When the practice is completed, you need to put the nursing injection training set back into the nursing injection bag. The specific storage steps are as follows:

Step 1: Turn on the pulley switch on the self-made collection bag 8. At this time, the simulated blood in the main body of the 50ml syringe of the blood supply device 5 will slowly flow into the simulated blood vessel of the puncture device 7, and into the self-made collection bag. 8 until there is no more liquid in the 50ml syringe body of the blood supply device 5.

Step 2: Close the pulley switch on the self-made collection bag 8, unscrew the male luer head on the puncture device 7 from the positive pressure connector on the blood supply device 5, and remove the female luer head on the puncture device 7 from the positive pressure connector. Unscrew the male luer head on the homemade collection bag 8.

The third step: remove the blood supply device 5 from the blood support 4, remove the puncture device 7 from the puncture arm 6, carry the blood supply device 5, the puncture device 7, and the self-made liquid collection bag 8 to the bathroom for cleaning, and place them side by side. empty liquid.

Step 4: Classify all accessories according to the indicated positions and place them in the nursing injection bag.

Claims (10)

1. A low-cost portable nursing injection training suit comprises a puncture base, a transfusion bracket and a blood bracket, and is characterized by also comprising

The infusion bag is arranged on the infusion support, the lower end of the infusion bag is provided with a tee joint, one end of the other two ends of the tee joint is connected with the one-way joint through a hose, and the other end of the tee joint is connected with a skin needle through a hose joint;

the puncture arm comprises an arm main body, the rear end of the arm main body is provided with a mounting base surface, the outer sides of the two sides of the mounting base surface are both provided with T-shaped grooves, the T-shaped groove comprises a horizontal section and a vertical section connected with the inner end of the horizontal section, the T-shaped groove is inserted along the straight rod positioning pin, and the straight rod positioning pin is connected with the two ends of the vertical section in a matching way, thereby realizing the connection between the puncture arm and the puncture base, and the puncture arm takes the straight rod positioning pin as a rotating shaft, the puncture arm is used for lifting the puncture arm, a connecting groove used for connecting the puncture device is also arranged on the puncture arm, a connecting channel communicated with the connecting groove is arranged in the arm main body, the outer end of the connecting channel is communicated to the outer end face of the puncture arm.

2. The low-cost portable nursing injection training kit of claim 1, wherein said piercing base is formed by screwing two symmetrical posts on the bottom plate, and two straight rod positioning pins are installed on the inner side of the posts, and two encapsulated magnets are installed on the outer side of the posts.

3. The portable nursing injection training set with low cost as claimed in claim 1, wherein the transfusion bracket is composed of two hollow steel tubes, the upper end of the upper half steel tube is welded with a hook for hanging the transfusion bag, the upper end of the lower half steel tube is provided with a hand screw for fixing the upper half steel tube in the lower half steel tube, and the lower end of the lower half steel tube is processed with an external thread for screwing in the internal thread hole at the outer side of the blood bracket.

4. The portable nursing injection training set as claimed in claim 1, wherein the blood stent is made of galvanized iron, which can be attracted and fixed by the encapsulated magnet, and the lower end of the blood stent is welded with an internal thread fixing block.

5. A low cost portable nursing injection training kit as in claim 1 further comprising a blood supply device comprising a syringe body with a double-ended female luer connector and a positive pressure connector attached to the front end of the syringe body, the blood supply device being mounted on a blood rack.

6. A low cost portable nursing injection training kit as in claim 1 wherein said piercing arm includes a cotton padded arm body and a piercing skin worn on the outside of said cotton padded arm body and closed by a zipper.

7. A low cost portable nursing injection training kit as claimed in claim 1 wherein the inner end of said connecting channel is connected to the rear side of said connecting groove and the outer end of said connecting channel is connected to the outside of the rear end of the arm body.

8. The low-cost portable nursing injection training kit of claim 1, wherein said puncturing device comprises a simulated meat mass and a simulated blood vessel, the two ends of the simulated blood vessel are respectively connected with a male luer head and a female luer head, the male luer head and the female luer head can be respectively connected with the two ends of the positive pressure connector, and the body of said puncturing device can be snapped into said connection groove.

9. The low-cost portable nursing injection training kit of claim 1, further comprising a self-made liquid collecting bag, wherein the self-made liquid collecting bag is formed by connecting a section of flexible pipe at the outlet of one liquid collecting bag, assembling a pulley control switch on the flexible pipe, and connecting a male luer at the other end of the flexible pipe.

10. The low-cost portable nursing injection training kit of claim 1 further comprising a puncture training device, wherein the puncture training device is composed of a Y-shaped three-way joint and three hoses connected thereon, and the three hoses are respectively connected with the one-way joint, the injector and the scalp acupuncture.

Images