CN112652203B

CN112652203B - Human-simulated embedded type muscle injection module capable of injecting water

Info

Publication number: CN112652203B
Application number: CN202011499817.XA
Authority: CN
Inventors: 王韧
Original assignee: Fudan University
Current assignee: Fudan University
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2022-08-05
Anticipated expiration: 2040-12-18
Also published as: CN112652203A

Abstract

The invention discloses an embedded type water-injectable intramuscular injection module of a dummy; the module can be embedded into the abdomen of the existing whole simulation person for teaching, so that the complete muscle injection process practice of the whole simulation person is realized, and the exercise comprises the steps of simulating the body position placement of a patient, the injection position positioning, the liquid injection, the resetting after the injection and the like. Compared with the existing anthropomorphic dummy injection module, the improved injection module is closer to the muscular tissue structure of a real person, can inject a large amount of liquid, can continuously provide multiple times of intramuscular injection exercises for multiple persons, and is suitable for teaching training and the like in medical nursing colleges.

Description

Human-simulated embedded type muscle injection module capable of injecting water

Technical Field

The invention belongs to the technical field of medical care teaching model equipment, and particularly relates to an embedded type water injection intramuscular injection module for a dummy.

Background

Intramuscular injection is a method of injecting a certain amount of liquid medicine into muscle tissue, and is one of the commonly used injection administration techniques. On the basis of theoretical learning, medical nursing students need to master the intramuscular injection technology, and have accurate positioning and skillful manipulations. The most commonly used site for intramuscular injection in the clinic is the gluteus maximus.

Because the operation is an invasive operation, the intramuscular injection practice has great limitation on the real person, and the operation practice of intramuscular injection is mostly carried out by adopting simulation equipment in the medical care education industry at present. The hip muscle injection model in the market at present is divided into two categories of a whole simulation human hip model and a local hip model. In order to present a complete operation flow, the implementation of the contents of student position placement, humanistic care and the like is trained, and nursing colleges and universities are trained by adopting an integral simulator. At present, the whole simulators in the market mostly make a detachable module at the injection part of the hip muscle, wherein the outer layer is made of silica gel materials, and the inner layer is filled with sponge articles. On one hand, the sponge can only absorb a small amount of liquid, so that the training efficiency is limited, and on the other hand, if the sponge does not squeeze out water in time, leakage, mildew and the like can occur. If the injection is not performed during the training, only the manipulations of inserting and pulling the needle can be exercised, but the force and speed of pushing the medicine cannot be experienced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide an embedded intramuscular injection module capable of injecting water; the module can be conveniently embedded into the hip of the existing whole dummy, and can realize the water injection function, so that students can practice needle insertion and needle pulling skills, and can also experience the speed and force of pushing medicine after needle insertion, thereby being closer to the clinical real situation. And the drainage function can be simply realized, the model is convenient to be repeatedly used, the resource and the cost are saved, and the teaching quality is improved. The intramuscular injection module can be embedded into the hip of the existing dummy, has the function of injecting liquid, can be repeatedly used and is convenient to replace.

Therefore, the invention provides the following technical scheme:

an embedded type water injection muscle injection module of a dummy comprises a simulation muscle injection block, a drainage cup and a soft water bag; the simulation muscle injection block is in a flat cylinder shape, the outermost layer of the simulation muscle injection block is a silica gel outer skin layer, and the silica gel outer skin layer is used for simulating the epidermis and the dermis of real skin; the silica gel outer skin layer on the top surface forms an injection surface, and a round notch is arranged in the middle of the silica gel outer skin layer on the bottom surface; a sponge layer for simulating subcutaneous tissues is adhered below the injection surface, a foaming material layer for simulating muscular tissues is adhered below the sponge layer, and a cavity is arranged below the foaming material layer; the drainage cup is arranged below the simulated intramuscular injection block; the liquid that injects through injection face, sponge layer and foaming material layer gets into the cavity, gets into the drainage cup through circular breach, and the drainage cup is the infundibulate, and the below of drainage cup sets up the check valve, and the check valve passes through the Y venturi tube and connects with the soft water bag, and another bypass of Y venturi tube connects waterproof ventilation valve, and soft water bag below sets up the outlet.

In the invention, the thickness of the injection surface is 2.5-3.5 mm.

In the invention, the thickness of the sponge layer is 9.5-10.5 mm.

In the invention, the thickness of the foaming material layer is 2.5-3.5 mm.

In the invention, the foaming material layer is made of polyurethane foaming material.

In the invention, the upper end of the drainage cup is bonded with the silica gel outer skin layer at the bottom of the simulated intramuscular injection block through glue.

In the invention, the waterproof vent valve is a threaded waterproof vent valve.

Compared with the prior art, the invention has the beneficial effects that:

1. the existing whole human abdomen simulator is provided with a cavity position, and only holes need to be punched at the original injection module, so that the human abdomen simulator can be convenient to use

The intramuscular injection module of the invention is embedded and is convenient to disassemble. The injection module can be repeatedly used and replaced at any time, and the use efficiency of the whole simulator is expanded. In addition, compared with a local injection model, the model can also utilize other anatomical part marks of a whole simulation person to carry out hip intramuscular injection positioning exercise.

2. Realize the water injection function, after carrying out intramuscular injection needle insertion, can conveniently pour into the simulation liquid medicine into, experience the speed and the dynamics of annotating the medicine. The soft water bag can hold at least 20-50 injections according to the estimation of 2-5ml of the liquid medicine for intramuscular injection.

3. The cost is low, the economic value is high, and the technology can be directly used for mass production of domestic anthropomorphic dummy enterprises.

Drawings

Fig. 1 is a schematic structural diagram of a human-simulated embedded type water-flooding intramuscular injection module.

Fig. 2 is a schematic diagram of a structure of a simulated intramuscular injection block.

Fig. 3 is a cross-sectional schematic view of a simulated intramuscular injection block.

Reference numbers in the figures: 1-simulation intramuscular injection block, 2-drainage cup, 3-one-way valve, 4-waterproof vent valve, 5-soft water bag, 6-drainage port, 11-silica gel outer skin layer, 12-sponge layer, 13-polyurethane foaming material layer and 14-cavity.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the embodiments.

Example 1

In the embodiment, the human-simulated embedded type water-injection intramuscular injection module comprises a simulated intramuscular injection block 1, a drainage cup 2 and a soft water bag 5; the simulation muscle injection block 1 is in a flat cylindrical shape, the outermost layer of the simulation muscle injection block 1 is a silica gel outer skin layer 11 used for simulating the epidermis and the dermis of real skin, the thickness is about 3mm, the top surface is an injection surface, and a circular gap is formed in the middle of the bottom surface; a sponge layer 12 for simulating subcutaneous tissues is adhered to the inner side of the injection surface of the silica gel outer skin, the thickness of the sponge layer is 10mm, and a polyurethane foam material layer 13 for simulating muscular tissues is adhered to the inner side of the sponge layer 12, and the thickness of the polyurethane foam material layer is 3 mm; below the polyurethane foam layer 13 is a cavity 14 for receiving liquid for intramuscular injection and flowing down with the opening of the drainage cup 2. The drainage cup 2 is made of plastic, the inlet of the drainage cup is bonded with the silica gel outer skin at the bottom of the simulation intramuscular injection block 1 by using industrial glue, the outlet of the drainage cup is connected with the one-way valve 3, the one-way valve 3 is connected with the soft water bag 5 through a Y-shaped pipe, the other side of the Y-shaped pipe is connected with the waterproof vent valve 4, the waterproof vent valve 4 is a threaded waterproof vent valve, the specification of threads of the waterproof vent valve is M5, and a water outlet 6 is arranged below the soft water bag 5.

In the embodiment, the simulated intramuscular injection block 1 with the cavity structure is used for simulated intramuscular injection, has the advantages of simulated compression resistance, easy weight fixation, no cracking and no decay, and is suitable for an injection needle to pass through.

In the embodiment, the one-way valve 3 supports the liquid to flow into the soft water bag 5 only from the drainage cup 2, and the liquid cannot flow back, so that the problem of water leakage when the dummy changes the body position can be effectively prevented.

In the embodiment, the waterproof vent valve 4 supports the air pressure in the soft water bag 5 to be always consistent with the atmospheric pressure, so that the phenomenon that the air pressure in the bag rises to cause the blockage of liquid injection when the liquid injection is more can be prevented.

In the embodiment, the water outlet 6 is arranged below the soft water bag 5, so that water can be conveniently drained when liquid is collected fully.

When intramuscular injection is practiced, an injection needle is vertically inserted into the simulated intramuscular injection block 1 from the upper part, and the needle head firstly passes through an injection surface, namely a silica gel outer skin layer 11, then passes through a sponge layer 12 and a foaming material layer 13, and enters a cavity 14 and the funnel-shaped drainage cup 2. When injecting liquid, the liquid will flow downwards into the one-way valve 3 through the drainage cup 2 under the action of gravity and then enter the soft water bag 5. When the injection is finished and the dummy turns over and resets, the liquid collected in the soft water bag 5 can not flow back into the drainage cup 2 because of the function of the one-way valve 3.

If the injection depth does not penetrate through the sponge layer 12 and the foam layer 13, the injection of the liquid is obstructed, and the operator can recognize that the injection depth is insufficient and adjust the injection depth so that the needle reaches the cavity 14, thereby training the accuracy of the injection skill of the operator. If a small amount of liquid penetrates the sponge layer 12 and the foam layer 13, the subsequent use of the module is not affected.

After a certain amount of liquid is collected in the soft water bag 5, an operator can timely discharge the liquid in the soft water bag through the water outlet 6 below the soft water bag 5. The method is convenient for operators to maintain, can be used repeatedly, and saves resources.

Claims

1. An embedded type water injection muscle injection module of a dummy is characterized by comprising a simulation muscle injection block, a drainage cup and a soft water bag; the simulation intramuscular injection block is in a flat cylinder shape, the outermost layer of the simulation intramuscular injection block is a silica gel outer skin layer which is used for simulating the epidermis and the dermis of real skin; the silica gel outer skin layer on the top surface forms an injection surface, and a round notch is arranged in the middle of the silica gel outer skin layer on the bottom surface; a sponge layer for simulating subcutaneous tissues is adhered below the injection surface, a foaming material layer for simulating muscular tissues is adhered below the sponge layer, and a cavity is arranged below the foaming material layer; the drainage cup is arranged below the simulated intramuscular injection block; the liquid that injects through injection face, sponge layer and foaming material layer gets into the cavity, gets into the drainage cup through circular breach, and the drainage cup is the infundibulate, and the below of drainage cup sets up the check valve, and the check valve passes through the Y venturi tube and connects with the soft water bag, and another bypass of Y venturi tube connects waterproof ventilation valve, and soft water bag below sets up the outlet.

2. The dummy embedded type water-fillable intramuscular injection module of claim 1, wherein the thickness of the injection surface is 2.5-3.5 mm.

3. The dummy embedded type water-injectable intramuscular injection module according to claim 1 wherein the sponge layer has a thickness of 9.5 to 10.5 mm.

4. The dummy embedded type water-injectable intramuscular injection module of claim 1 wherein the thickness of the foam material layer is 2.5-3.5 mm.

5. The dummy embedded type water-injectable intramuscular injection module of claim 1 wherein the foam material layer is made of polyurethane foam material.

6. The simulated human embedded type water-fillable intramuscular injection module of claim 1 wherein the upper end of the drainage cup and the silicone outer skin layer at the bottom of the simulated intramuscular injection block are adhered by glue.

7. The simulated human embedded water injectable intramuscular injection module of claim 1 wherein the waterproof vent valve is a threaded waterproof vent valve.