Venous transfusion model for pet clinical teaching

Abstract

The invention belongs to but is not limited to the technical field of clinical teaching, and particularly relates to an intravenous infusion model for pet clinical teaching, which consists of a simulated limb carcass, a replaceable simulated limb skin, a replaceable simulated blood vessel, simulated blood and two simulated blood collection bottles, wherein the simulation limb carcass is made of hard plastic, a concave part in the carcass is of a concentric-square-shaped structure, and the simulation skin is made of latex; the replaceable simulated blood vessel is composed of two parts: a model internal part and a model external part. A free colloid simulation vein blood vessel is arranged in the model and between the simulation limb carcass and the simulation leather, the colloid vein blood vessel can be placed in a hollow-square-shaped groove in the side wall of the carcass for preliminary position fixing, then the replaceable simulation skin is pressed on the concave portion of the carcass, the position of the colloid vein blood vessel is further fixed, and the simulation skin can be used for fixing the position of the colloid vein blood vessel. And two ends are exposed out of the model to form a quasi-vascular circulation path in the model.

Description

Technical Field

[0001] The invention belongs to but is not limited to the field of clinical teaching technology, and in particular relates to an intravenous infusion model for pet clinical teaching. Background Art

[0002] The initial positions for veterinary medicine graduates are generally veterinary assistants, disease control officers, etc. Animal diagnosis and treatment capabilities are the most fundamental requirements of employers for graduates. When pet medical students learn clinical diagnostic techniques, learning intravenous infusion is one of their essential skills, and this skill requires repeated practice to master. In real life, when students practice intravenous transfusions on canines, they usually practice on real animals. Since there are many students and few animals, this often greatly reduces the efficiency of students' practice. In addition, when students practice, they often cause discomfort to animals or even cause the death of animals.

[0003] At present, pet medical professional teachers use models to teach intravenous infusion. However, after multiple venous punctures, some existing teaching models have damaged the simulated skin at the vascular site and the simulated blood vessels inside the model. As a result, when the model simulates venous blood circulation, the liquid inside the simulated blood vessels leaks out to the subcutaneous part of the simulated skin and even outside the model, affecting the correct operation and effect evaluation of intravenous infusion. Learning intravenous infusion skills requires multiple practices, and the existing intravenous infusion models have limited uses and large losses. As teaching tools, they are also relatively expensive, and the teaching cost is high.

[0004] In view of the above analysis, the technical problems that urgently need to be solved in the prior art are: the existing devices have high use costs, limited use times and large losses. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides an intravenous infusion model for clinical teaching of pets.

[0006] The present invention is implemented as follows: a pet intravenous infusion model for clinical teaching, which is composed of a simulated limb carcass, replaceable simulated limb skin, replaceable simulated blood vessels, simulated blood, and two simulated blood collection bottles; wherein the simulated limb carcass is hard plastic, the inner concave part of the carcass is a round-shaped structure, and the simulated skin is latex texture; the replaceable simulated blood vessels are composed of two parts: the inner part of the model and the outer part of the model; inside the model, between the simulated limb carcass and the simulated cortex, there is a free colloid simulated vein, which can be placed in the round-shaped groove of the carcass side wall for preliminary position fixation, and then the replaceable simulated skin is pressed against the concave part of the carcass to further fix the position of the colloid blood vessels, and the two ends are leaked out of the model to form a simulated blood vessel circulation pathway inside the model; the outer part of the simulated blood vessel is composed of two groups of infusion sets, one end of the infusion set is connected to the inside of the colloid vein, and the other end is inserted into the simulated blood collection bottle. The simulated blood is red ink or potassium permanganate dilution.

[0007] Furthermore, when in use, a blood simulation collection bottle is filled with simulated blood and hung on an ordinary infusion stand, and the glial blood vessel at one end is connected through an infusion pump, and the other end of the glial blood vessel is connected to another infusion pump and an empty blood simulation collection bottle; the collection bottle is placed on the table, and a height difference is formed between the two collection bottles, which provides power for the simulated blood to flow inside the model circulation.

[0008] The present invention also provides a teaching method for simulating a pet intravenous infusion process, comprising the following steps:

[0009] Prepare a model including a simulated limb carcass, replaceable simulated limb skin, and replaceable simulated blood vessels;

[0010] The circular groove inside the simulated limb body is used to initially fix the position of the simulated vein;

[0011] The simulated skin is covered on the surface of the simulated limb carcass to further fix the position of the simulated blood vessels and form a vascular pathway.

[0012] Further, the steps include:

[0013] The simulated jelly veins are placed into the circular grooves of the simulated limb carcass and fixed through simulated skin so that both ends of the blood vessels are exposed outside the model to form a simulated blood circulation pathway.

[0014] Further, the steps include:

[0015] The two ends of the simulated blood vessel are respectively connected to one end of two sets of infusion sets, and the other end is respectively connected to two simulated blood collection bottles to achieve the flow of simulated blood in the model.

[0016] Further, the steps include:

[0017] Hang a simulated blood collection bottle on a common infusion stand to hold simulated blood;

[0018] Another simulated blood collection bottle is placed on the table to recover the simulated blood. The height difference between the two collection bottles enables the simulated blood to flow and circulate in the model.

[0019] In combination with the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solutions to be protected by the present invention are as follows:

[0020] First, low cost of use: key parts can be replaced, which greatly saves the cost of use and meets the teaching and experimental needs of multiple people practicing multiple times.

[0021] The existing intravenous infusion models for pet clinical teaching have the following technical problems:

[0022] 1) Insufficient simulation: The existing models cannot simulate real animal limbs well in terms of structure and materials, resulting in poor teaching results.

[0023] 2) The blood vessels are not firmly fixed: The simulated blood vessels in the traditional models are prone to shifting during use, affecting the realism and accuracy of the operation.

[0024] 3) Unstable blood flow: Many existing models cannot provide stable simulated blood flow, making it difficult to simulate real clinical scenarios.

[0025] 4) Difficulty in replacing parts: Existing models are complex, time-consuming and labor-intensive to replace simulated skin and blood vessels, which is not conducive to frequent use and maintenance.

[0026] Technological advancements:

[0027] The technical solution of the present invention has achieved the following significant technical progress on the basis of solving the above technical problems:

[0028] 1) High Simulation:

[0029] The replaceable simulated limb skin with latex texture makes the model closer to real animal skin in touch and elasticity, improving the realism of teaching.

[0030] The simulated limb carcass is made of hard plastic, and the internal design is a circular structure, which enhances the stability and simulation of the model.

[0031] 2) Firm vascular fixation:

[0032] The gelatinous simulated veins can be placed in the roundabout grooves of the side wall of the fetus, and the position of the blood vessels can be further fixed by pressing the simulated skin to ensure that the blood vessels are not easily displaced during the operation, thereby improving the accuracy and practicality of the operation.

[0033] 3) Stable simulated blood flow:

[0034] Through the height difference design, a natural flow dynamic is formed between the two simulated blood collection bottles, so that the simulated blood can flow stably inside the model, truly simulating the clinical intravenous infusion process.

[0035] The simulation effect is further enhanced by using red ink or potassium permanganate dilution as simulated blood.

[0036] 4) Easy to replace and maintain:

[0037] The model design takes into account the interchangeability of components. The simulated limb skin and simulated blood vessels can be easily removed and replaced, simplifying the maintenance and use of the model.

[0038] This design not only increases the service life of the teaching model, but also reduces maintenance costs and time, and improves teaching efficiency.

[0039] Through the above technical scheme, the present invention effectively solves the problems existing in the prior art of insufficient simulation, loose blood vessel fixation, unstable blood flow and non-replaceable key parts, significantly improves the simulation, operability and maintenance convenience of the intravenous infusion model for pet clinical teaching, and provides a more reliable and practical tool for clinical teaching.

[0040] Second, the expected benefits and commercial value of the technical solution of the present invention after transformation are:

[0041] Market demand: In 2024, China's pet medical market showed a positive growth trend and is expected to continue to maintain its growth trend. In 2023, the pet medical market size will reach 82.1 billion yuan, indicating that pet medical consumables, including intravenous infusion models, have a broad market space.

[0042] Educational and training value: There are about 40,000 graduates from undergraduate and college schools related to animal medicine in China each year. Whether in school or in professional training, this model can be used as an important tool for pet clinical teaching to improve the clinical skills of veterinary students and in-service veterinarians in terms of intravenous injection and infusion techniques.

[0043] Policy and investment drive: The government's emphasis on animal welfare and health care, as well as the promotion of relevant policies, will promote the development of the pet medical industry. At the same time, as the capital market pays more attention to the pet medical industry, there may be more investment opportunities to provide financial support for the transformation of this technical solution.

[0044] International market potential: The global veterinary infusion pump market is expected to grow at a compound annual growth rate of 7.4% during the forecast period, and the Asia-Pacific region is expected to be the fastest growing market. This shows that the intravenous infusion model for pet clinical teaching has potential not only in the domestic market, but also in the international market.

[0045] Third, the intravenous infusion model for clinical teaching of pets provided by the present invention provides a teaching and training tool by simulating the intravenous infusion process of pet limbs. First, the simulated limb carcass of the model is made of hard plastic, and a recessed portion with a circular structure is provided inside to accommodate and fix the simulated veins. The simulated skin is made of latex and can be covered on the surface of the simulated limb carcass, which not only plays the role of simulating skin, but also further fixes the position of the simulated blood vessels by covering and fitting.

[0046] The design of the simulated blood vessels is divided into internal and external parts. Inside the model, the simulated venous blood vessels of gelatin are placed in the round-shaped groove of the side wall of the carcass to form a preliminary fixation. Subsequently, by covering the simulated skin, the position of the simulated venous blood vessels is further fixed, and the two ends of the blood vessels are exposed from the outside of the model to form a continuous vascular pathway. The two sets of external infusion pumps are connected to the two ends of the simulated venous blood vessels to ensure that the simulated blood can circulate inside the model.

[0047] The simulated blood is made of red ink or potassium permanganate dilution and is used to simulate the flow of blood in the model. One simulated blood collection bottle is used to hold the simulated blood and is hung on a common infusion stand, while the other collection bottle is used to recover the simulated blood and is placed on the table. The height difference between the two collection bottles provides the power for the simulated blood flow. Through the action of gravity, the simulated blood can flow from high to low, completing the blood circulation process in the model and simulating a real intravenous infusion scenario.

[0048] The design of this model not only takes into account the replaceability and fixability of the simulated blood vessels, but also simulates the flow of blood through simple physical principles, making the teaching process more intuitive and close to real clinical operations, providing learners with effective practical experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a schematic diagram of an intravenous infusion model for pet clinical teaching provided by an embodiment of the present invention;

[0050] Figure 2 is a schematic diagram of a simulated limb carcass provided by an embodiment of the present invention;

[0051] Figure 3 is a schematic diagram of a blood vessel groove on a simulated limb carcass provided by an embodiment of the present invention;

[0052] Figure 4is a schematic diagram of a simulated limb with a blood vessel groove and a portion of simulated skin provided by an embodiment of the present invention;

[0053] In the figure: 1. Simulated limb carcass; 2. Replaceable simulated limb skin; 3. Circular groove; 4. Replaceable internal part of simulated blood vessel model; 5. Replaceable external part of simulated blood vessel model; 6. Simulated blood collection bottle. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0055] The following are two specific examples describing the application of the intravenous infusion model for pet clinical teaching:

[0056] Example 1: Venipuncture Skills Training for Veterinary Students

[0057] In veterinary training courses, students are usually required to master the basic skills of venipuncture on pets. In order to provide a safe training environment, a pet clinical teaching intravenous infusion model is used.

[0058] 1) Model preparation: According to the teaching requirements, the simulated limb carcass and simulated skin have been installed. The colloid simulated veins are placed in the circular grooves of the simulated limb carcass and fixed to the carcass surface through the simulated skin, with both ends exposed.

[0059] 2) Infusion set connection: One end of the two sets of infusion sets was connected to the exposed simulated venous blood vessels, and the other ends were connected to simulated blood collection bottles.

[0060] 3) Blood simulation: Red ink is used as simulated blood and is placed in a simulated blood collection bottle at a high place. The simulated blood flows into the gelatinous simulated veins through an infusion set.

[0061] 4) Puncture practice: Students perform venipuncture on the model, simulating the insertion, positioning and fixation of the needle during actual pet venipuncture. Simulated blood will flow out of the blood vessel after a successful puncture to verify the accuracy of the operation.

[0062] 5) Outcome evaluation: By observing the flow of simulated blood, teachers can evaluate students' venipuncture skills and provide corresponding feedback and improvement suggestions.

[0063] Example 2: Infusion operation simulation training for pet clinic staff

[0064] In order to improve the proficiency and accuracy of pet clinic staff in infusion operations, the intravenous infusion model for pet clinical teaching is used for regular skill training.

[0065] 1) Model setup: The staff first assembles the simulated limb carcass and simulated skin according to the operating manual, and ensures that the colloid simulated veins are correctly placed in the circular grooves and fixed to the carcass surface by the simulated skin.

[0066] 2) Blood circulation simulation: Potassium permanganate dilution is used as simulated blood. The liquid is placed in a simulated blood collection bottle at a high position and connected to a simulated venous blood vessel through an infusion set. Another collection bottle is placed at a low position to recover the simulated blood.

[0067] 3) Infusion operation: The staff simulates the entire process of intravenous infusion for pets, including the connection of the infusion tube, air removal, adjustment of the infusion speed, selection of the puncture point and insertion of the needle. During this process, the simulated blood flow will provide real-time feedback to help the staff adjust the operation.

[0068] 4) Operational evaluation: After the training, the staff can evaluate their performance in the actual infusion operation based on the model's response and simulated blood flow conditions, and conduct further training as needed.

[0069] These two examples demonstrate the practical application of the intravenous infusion model in different teaching and training environments, helping learners master key clinical skills by simulating real operation scenarios.

[0070] The intravenous infusion model for pet clinical teaching provided by the embodiment of the present invention is intended to provide a simulation environment for veterinary students and clinical interns to practice and master intravenous infusion techniques. The following is its detailed working principle:

[0071] 1. Simulated limb carcass: Made of hard plastic, with a concave portion with a circular structure inside to accommodate simulated blood vessels.

[0072] 2. Replaceable simulated limb skin: latex texture, can be covered on the surface of the carcass to simulate real skin.

[0073] 3. Replaceable simulated blood vessel: made of colloid material, including the internal part of the model and the external part of the model.

[0074] 4. Simulated blood: usually red ink or potassium permanganate dilution is used.

[0075] 5. Simulated blood collection bottles: two, one for holding simulated blood and one for recovering simulated blood.

[0076] 6. Infusion set: Two sets, used to connect simulated blood vessels and simulated blood collection bottles.

[0077] Installation steps:

[0078] 1. Install the simulated blood vessel:

[0079] There is a free glial simulated vein between the simulated limb carcass and the simulated cortex.

[0080] Place the glial vein into the circular groove of the side wall of the fetus for preliminary position fixation.

[0081] The replaceable simulated skin is pressed against the concave part of the carcass to further fix the position of the glial blood vessels so that both ends are exposed to the outside of the model, forming a simulated blood vessel circulation pathway within the model.

[0082] 2. Connect the infusion set:

[0083] One end of an infusion set is connected to one end of the glial vein, and the other end is inserted into a simulated blood collection bottle filled with simulated blood.

[0084] Connect one end of another infusion set to the other end of the glial vein and insert the other end into an empty simulated blood collection bottle.

[0085] Steps:

[0086] 1. Simulate blood flow:

[0087] The collection bottle filled with simulated blood is hung on a common infusion stand, and the simulated blood is introduced into the glial vein through the infusion set.

[0088] Place the empty collection bottle on the table to create a height difference with the collection bottle filled with simulated blood hanging on the infusion stand.

[0089] By utilizing the height difference, blood is simulated to flow from a collection bottle at a high place through the glial veins and finally into an empty collection bottle at a low place.

[0090] Working principle:

[0091] 1.Simulate blood circulation:

[0092] The simulated blood flows from the collection bottle at a high position into the glial veins, and the simulated blood flows through the veins until it flows into the empty collection bottle at a low position.

[0093] During the flow process, students can control the flow rate of simulated blood by adjusting the infusion set to simulate different clinical situations.

[0094] 2. Teaching application:

[0095] Students can practice inserting needles, adjusting infusion rates, and handling venipunctures on the simulated limb.

[0096] By simulating the circulation of blood, students can observe and understand the flow of blood in veins, and enhance their hands-on ability and practical experience.

[0097] This model helps students better understand and master techniques such as venipuncture and intravenous infusion by simulating the real intravenous infusion process, providing them with valuable practice opportunities for their future clinical practice.

[0098] like Figure 1 As shown, the intravenous infusion model for pet clinical teaching is composed of a simulated limb body 1, replaceable simulated limb skin 2, replaceable simulated blood vessels, simulated blood, and two simulated blood collection bottles 6 (such as Figure 1 As shown). The simulated limb carcass 1 is made of hard plastic, the inner concave part of the carcass is in a round shape, and the simulated skin is in latex texture. The replaceable simulated blood vessel is composed of two parts: the inner part 4 of the replaceable simulated blood vessel model and the outer part 5 of the replaceable simulated blood vessel model. Inside the model, between the simulated limb carcass 1 and the simulated cortex, there is a free colloid simulated vein. The colloid vein can be placed in the round groove 3 of the side wall of the carcass for preliminary position fixation, and then the replaceable simulated skin is pressed against the concave part of the carcass to further fix the position of the colloid blood vessel, and the two ends are leaked out of the model to form a simulated blood vessel circulation pathway inside the model. The outside of the simulated blood vessel is composed of two sets of infusion sets, one end of which is connected to the inside of the colloid vein, and the other end is inserted into the simulated blood collection bottle 6. The simulated blood is red ink or potassium permanganate dilution.

[0099] When in use, a blood simulation collection bottle is filled with simulated blood and hung on a common infusion stand, and an infusion set is used to connect the glial blood vessel at one end, and the other end of the glial blood vessel is connected to another infusion set and an empty blood simulation collection bottle. The collection bottle is placed on the table, and a height difference is formed between the two collection bottles to provide power for the simulated blood to flow inside the model circulation.

[0100] 1. The shape of the simulated limb body 1 is a straight cylinder with a wide top and a narrow bottom, which is convenient for grasping and installation during operation. Figure 2 (shown)

[0101] 2. Alternative simulated blood vessels: ordinary latex tubes, which are initially fixed by the slots on the simulated limb carcass 1, and further fixed by placing the simulated skin. ( Figure 3 (shown)

[0102] 3. Replaceable simulated skin: The entire simulated skin is divided into two parts, one part is the simulated skin that wraps the simulated blood vessels, and the other part is the simulated skin that does not wrap the simulated blood vessels; the simulated skin that does not wrap the blood vessels has two ways of existence, one way is to fix it on the simulated limb carcass 1, at this time, the simulated skin that wraps the simulated blood vessels can be fixed on the simulated skin or the simulated limb carcass 1, and the fixing method can be buckles, buttons or any other detachable fixing methods, which can realize skin replacement, increase the utilization rate of other parts, and reduce costs ( Figure 4 Another method is to not need this part of the simulated skin, design a recessed area of ​​appropriate size on the simulated body, and design grooves for simulated blood vessels in the recessed area. The replaceable simulated skin is placed in the recessed area with buckles, buttons or any other detachable fixing method to form a complete cylindrical simulated limb with the simulated body.

[0103] Under the current teaching environment, each student needs to practice intravenous infusion about 10 times on average to master the skills, and more practice is required to achieve proficiency. There are currently about 2,000 students in this major at our school. According to the existing infusion models on the market, the price of each model is about 300 yuan, and each model will be obviously damaged or leak after about 50 punctures. Therefore, the cost of a single skill training is about 120,000 yuan per year. Due to limited teaching funds, such a high cost is difficult to meet the full practice needs of all students.

[0104] To address this problem, the present invention designs a highly replaceable intravenous infusion model for pet clinical teaching, whose simulated limb skin and simulated blood vessels can be easily disassembled and replaced. By simplifying the maintenance and use process of the model, the service life of the model is greatly extended. More importantly, the cost of the core replaceable components in the present invention is very low, and the replacement cost of a single component is about 10 yuan. Based on this calculation, the cost of individual skill training for 2,000 students can be controlled at about 4,000 yuan, which means that compared with traditional models, the teaching cost is saved by nearly 97%.

[0105] This design not only ensures that every student has enough practice opportunities, but also significantly reduces teaching costs, providing the school with a feasible and economical skills training program with limited funds, while also improving the utilization rate of teaching resources and students' learning outcomes.

[0106] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0107] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any modifications, equivalent substitutions and improvements made by any technician familiar with the technical field within the technical scope disclosed by the present invention and within the spirit and principle of the present invention should be covered by the protection scope of the present invention.

Claims

1. A pet intravenous infusion model for clinical teaching, characterized in that: It includes a simulated limb body, replaceable simulated limb skin, replaceable simulated blood vessels, simulated blood, and two simulated blood collection bottles; the simulated limb body is made of hard plastic, a concave portion with a circular structure is arranged inside the body, and the simulated skin is made of latex.

2. The intravenous infusion model for pet clinical teaching according to claim 1, characterized in that: The replaceable simulated blood vessel comprises an internal part and an external part of the model; inside the model, a free colloid simulated vein is arranged between the simulated limb carcass and the simulated cortex, and the simulated vein can be placed in the round-shaped groove of the carcass side wall for preliminary position fixation.

3. The intravenous infusion model for pet clinical teaching according to claim 2, characterized in that: The simulated skin can be covered on the surface of the simulated limb carcass to further fix the position of the glial blood vessels so that both ends thereof are exposed outside the model to form a simulated blood vessel circulation pathway inside the model.

4. The intravenous infusion model for pet clinical teaching according to claim 3, characterized in that: The exterior of the simulated blood vessel is composed of two groups of infusion sets, one end of each group of infusion sets is respectively connected to the two ends of the glial vein, and the other end is respectively inserted into two simulated blood collection bottles.

5. The intravenous infusion model for pet clinical teaching according to claim 4, characterized in that: The simulated blood is red ink or potassium permanganate dilution, which is used to simulate the flow of blood in the model.

6. The intravenous infusion model for pet clinical teaching according to claim 5, characterized in that: One of the simulated blood collection bottles is used to hold simulated blood and is hung on a common infusion stand, and the other is used to recover simulated blood and is placed on a desktop. The height difference between the two collection bottles provides power for the flow of simulated blood inside the model.

7. A teaching method for simulating the intravenous infusion process of a pet, characterized in that: The following steps are involved: A model including a simulated limb body, replaceable simulated limb skin, and replaceable simulated blood vessels is prepared; the circular groove inside the simulated limb body is used to preliminarily fix the position of the simulated vein; The simulated skin is covered on the surface of the simulated limb carcass to further fix the position of the simulated blood vessels and form a vascular pathway.

8. The method according to claim 7, characterized in that The steps include: The simulated jelly veins are placed into the circular grooves of the simulated limb carcass and fixed through simulated skin so that both ends of the blood vessels are exposed outside the model to form a simulated blood circulation pathway.

9. The method according to claim 7, characterized in that: The steps include: The two ends of the simulated blood vessel are respectively connected to one end of two sets of infusion sets, and the other end is respectively connected to two simulated blood collection bottles to achieve the flow of simulated blood in the model.

10. The method according to claim 9, characterized in that The steps include: Hang a simulated blood collection bottle on a common infusion stand to hold simulated blood; Another simulated blood collection bottle is placed on the table to recover the simulated blood. The height difference between the two collection bottles enables the simulated blood to flow and circulate in the model.

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