A bone marrow cavity infusion technique training model

Abstract

The utility model discloses a kind of bone marrow cavity infusion technology training models, belong to medical teaching equipment technical field, it includes skeleton model, silica gel layer, bone marrow puncture suite, infusion suite and liquid collection suite;On the basis of existing model technology, add infusion suite and liquid collection suite, so that bone marrow cavity infusion technology training model has the whole process realistic simulation training function including drop speed control and observation fluid replacement condition.

Description

Technical Field

[0001] This application belongs to the field of medical teaching equipment technology, and in particular relates to a training model for intraosseous infusion technique. Background Technology

[0002] Intraosseous cavity infusion (ICI) technology can rapidly establish a lifeline when intravenous access is difficult to establish (such as in shock or trauma), and is a key emerging emergency medicine technique. ICI training models provide medical students and healthcare professionals with a risk-free practice environment, avoiding the ethical risks of direct patient manipulation. These training models are generally made of thermoplastic elastomer composite materials, mimicking the anatomical features of the human torso. They are designed for supine positioning, are soft, and provide a realistic feel. Their anatomical landmarks are accurate and clearly palpable, facilitating accurate puncture localization and improving the success rate. During the puncture, a distinct feeling of emptiness is felt when the simulated medullary cavity is penetrated, and simulated bone marrow fluid can be extracted, providing a realistic experience for the user. The puncture procedure allows for repeated practice at the same puncture site, meeting the user's need for multiple practice sessions and helping them master the bone marrow aspiration technique. The skin and simulated bone marrow cavity puncture modules are replaceable, facilitating the replacement of worn or damaged parts after long-term use, extending the model's lifespan and reducing operating costs. In medical school courses on anatomy, clinical medicine, and related majors, it helps students better understand the anatomical structure and operational procedures of bone marrow aspiration, enabling them to practice extensively on the model before actual procedures, improving their practical skills, and allowing them to understand and master the latest technologies and skills, reducing the risk of errors when operating on patients. It is an important teaching tool for improving clinical operational skills.

[0003] However, current training models for intraosseous infusion techniques generally only have puncture training functions and lack the functions of drip rate control and observation during the infusion process. Therefore, when students use training models for intraosseous infusion techniques, they cannot achieve realistic simulation training of the entire intraosseous infusion process. Utility Model Content

[0004] The purpose of this application is to provide a training model for intraosseous infusion technology. Based on the existing model technology, an infusion kit and a collection kit are added to enable the intraosseous infusion technology training model to have a realistic simulation training function for the entire process, including drip rate control and observation of fluid infusion.

[0005] To achieve the above objectives, this utility model provides a training model for intraosseous infusion technology, which includes a bone model, a silicone layer, a bone marrow aspiration kit, an infusion kit, and a collection kit.

[0006] The bone model has a medullary cavity and a broken end. The medullary cavity is connected to the outside through the broken end. A first external thread is provided on the outside of the broken end. A sealing cap is provided on the broken end. The sealing cap is provided with a first internal thread. The sealing cap and the bone model are sealed by the cooperation of the first internal thread and the first external thread. The sealing cap has a drainage thread hole.

[0007] The silicone layer is wrapped around the outside of the bone model;

[0008] The bone marrow aspiration kit includes a puncture sleeve, a bone puncture needle, and a pistol drill. The upper end of the puncture sleeve is provided with a first connecting cap, and the first connecting cap is provided with a second internal thread. The upper end of the bone puncture needle is provided with an internal hex bolt. The bone puncture needle passes through the first connecting cap and the puncture sleeve in sequence. The internal hex bolt is tightened into the second internal thread. The pistol drill is used to drive the internal hex bolt to rotate so that the bone puncture needle can make a hole in the bone model.

[0009] The infusion kit includes an infusion bag and an infusion tube. The infusion bag is provided with a first bag opening rubber stopper and a first vent valve at its end. The infusion tube is provided with a first skin plug puncture needle at its upper end, a second connecting cap at its lower end, and an infusion regulator in the center. The second connecting cap is provided with a second external thread. The first skin plug puncture needle passes through the first bag opening rubber stopper and extends into the inner cavity of the infusion bag. The second external thread is tightened onto the second internal thread to connect the inner cavity of the infusion tube and the inner cavity of the puncture sleeve.

[0010] The liquid collection kit includes a liquid collection bag and a liquid collection tube. The end of the liquid collection bag is provided with a second bag opening rubber stopper and a second vent valve. The lower end of the liquid collection tube is provided with a second rubber stopper puncture needle and the upper end is connected to a quick connector. The second rubber stopper puncture needle passes through the second bag opening rubber stopper and extends into the inner cavity of the liquid collection bag. The quick connector is threadedly connected to the drain threaded hole.

[0011] Furthermore, this utility model provides a training model for intraosseous cavity infusion technology, wherein the intraosseous cavity is filled with high-density foam. When using the model for operational training, after the bone puncture needle is inserted, it needs to be removed. Before infusion, physiological saline needs to be quickly injected into the intraosseous cavity with a syringe to push aside the bone marrow fluid and blood sinuses, leaving space for subsequent infusion. This injection process has relatively high resistance. The addition of high-density foam in this application is to increase the injection resistance and provide the most realistic training effect.

[0012] This application has the following advantages over the prior art:

[0013] On the one hand, this application adds an infusion kit and a fluid collection kit to the traditional teaching model, enabling the bone marrow cavity infusion technology training model to have a realistic simulation training function that includes drip rate control and observation of fluid replenishment. On the other hand, considering that before infusing the bone marrow cavity, it is necessary to use a syringe to quickly inject physiological saline into the bone marrow cavity to push aside the bone marrow fluid and blood sinuses and leave a cavity for subsequent infusion, the injection process has a large resistance. This application adds high-density foam to increase the injection resistance and provide the most realistic training effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the opening stage of the bone model in the training model of the bone marrow cavity infusion technology according to the present invention;

[0015] Figure 2 This is a schematic diagram of the intraosseous infusion stage of a training model for intraosseous infusion technology according to the present invention;

[0016] Figure 3 This is an exploded view of the structure of a training model for intramedullary infusion technology according to the present invention.

[0017] The components include: 1. Bone model; 2. Silicone layer; 3. Bone cavity; 4. Broken end; 5. High-density foam; 6. First external thread; 7. Sealing cap; 8. First internal thread; 9. Drainage threaded hole; 10. Puncture sheath; 11. Bone puncture needle; 12. Pistol drill; 13. First connecting cap; 14. Second internal thread; 15. Hex socket head cap; 16. Infusion bag; 17. Infusion tubing; 18. First bag opening rubber stopper; 19. First vent valve; 20. First skin plug puncture needle; 21. Second connecting cap; 22. Infusion regulator; 23. Second external thread; 24. Collection bag; 25. Collection tubing; 26. Second bag opening rubber stopper; 27. Second vent valve; 28. Second skin plug puncture needle; 29. ​​Quick connector. Detailed Implementation

[0018] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0019] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] like Figures 1-3 As shown, this embodiment provides a training model for intraosseous infusion technology, which includes a bone model 1, a silicone layer 2, a bone marrow aspiration kit, an infusion kit, and a collection kit;

[0022] The bone model 1 has a medullary cavity 3 and a broken end 4. The medullary cavity 3 is connected to the outside through the broken end 4. The medullary cavity 3 is filled with high-density foam 5. The outside of the broken end 4 is provided with a first external thread 6. The broken end 4 is provided with a sealing cap 7. The sealing cap 7 is provided with a first internal thread 8. The sealing cap 7 and the bone model 1 are sealed by the cooperation of the first internal thread 8 and the first external thread 6. The sealing cap 7 has a drainage threaded hole 9.

[0023] The silicone layer 2 is wrapped around the outside of the bone model 1;

[0024] The bone marrow aspiration kit includes a puncture sleeve 10, a bone puncture needle 11, and a pistol drill 12. The puncture sleeve 10 has a first connecting cap 13 at its upper end, and the first connecting cap 13 has a second internal thread 14. The bone puncture needle 11 has an internal hex bolt 15 at its upper end. The bone puncture needle 11 passes through the first connecting cap 13 and the puncture sleeve 10 in sequence. The internal hex bolt 15 is tightened to the second internal thread 14. The pistol drill 12 is used to drive the internal hex bolt 15 to rotate so that the bone puncture needle 11 can make a hole in the bone model 1.

[0025] The infusion kit includes an infusion bag 16 and an infusion tube 17. The infusion bag 16 is provided with a first bag opening rubber stopper 18 and a first vent valve 19 at its end. The infusion tube 17 is provided with a first skin plug puncture needle 20 at its upper end, a second connecting cap 21 at its lower end, and an infusion regulator 22 in the center. The second connecting cap 21 is provided with a second external thread 23. The first skin plug puncture needle 20 passes through the first bag opening rubber stopper 18 and extends into the inner cavity of the infusion bag 16. The second external thread 23 is tightened onto the second internal thread 14 to connect the inner cavity of the infusion tube 17 and the inner cavity of the puncture sleeve 10.

[0026] The liquid collection kit includes a liquid collection bag 24 and a liquid collection tube 25. The end of the liquid collection bag 24 is provided with a second bag opening rubber stopper 26 and a second vent valve 27. The lower end of the liquid collection tube 25 is provided with a second rubber stopper puncture needle 28 and the upper end is connected to a quick connector 29. The second rubber stopper puncture needle 28 passes through the second bag opening rubber stopper 26 and extends into the inner cavity of the liquid collection bag 24. The quick connector 29 is threaded to the drain threaded hole 9.

[0027] The usage process and principle of the bone marrow cavity infusion training model in this embodiment are as follows: First, high-density foam 5 is inserted into the bone marrow cavity 3 through the cut end 4, the sealing cap 7 is tightened by thread, and the quick connector 29 is tightened into the drainage threaded hole 9. The bone puncture needle 11 is inserted into the first connecting cap 13 and the puncture sleeve 10 and extended to the outer end. The internal hex bolt 15 is tightened into the second internal thread 14 of the first connecting cap 13. The bone puncture needle 11 and the puncture sleeve 10 penetrate the silicone layer 2 to the outer surface of the bone. At this time, the pistol drill 12 is held and the hexagonal head of the pistol drill 12 is inserted into the hole of the internal hex bolt 15. The pistol drill 12 is started and pressure is applied towards the bone model 1, and the drill is rotated. After the bone puncture needle 11, along with the puncture sheath 10, passes through the bone model 1, the hex bolt 15 is unscrewed. The hex bolt 15 and the bone puncture needle 11 are removed. To facilitate smooth subsequent infusion, an additional syringe is required. The syringe port and the first connecting cap 13 are connected by a tubing. 10ml of saline solution is continuously injected into the bone marrow cavity 3 to open the infusion cavity. The syringe and tubing are removed. The second external thread 23 of the second connecting cap 21 is tightened onto the second internal thread 14. The infusion regulator 22 is adjusted to control the infusion rate. The infusion medication injected into the bone marrow cavity 3 will flow into the collection bag 24 along the bone marrow cavity 3, quick connector 29, and collection tube 25.

[0028] Any aspects not detailed in this application are well-known to those skilled in the art.

[0029] The preferred embodiments of this application have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this application without inventive effort. Therefore, any technical solutions that can be obtained by those skilled in the art based on the concept of this application through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A training model for intraosseous infusion technique, characterized in that, Includes bone model, silicone layer, bone marrow aspiration kit, infusion kit and fluid collection kit; The bone model has a medullary cavity and a broken end. The medullary cavity is connected to the outside through the broken end. A first external thread is provided on the outside of the broken end. A sealing cap is provided on the broken end. The sealing cap is provided with a first internal thread. The sealing cap and the bone model are sealed by the cooperation of the first internal thread and the first external thread. The sealing cap has a drainage thread hole. The silicone layer is wrapped around the outside of the bone model; The bone marrow aspiration kit includes a puncture sleeve, a bone puncture needle, and a pistol drill. The upper end of the puncture sleeve is provided with a first connecting cap, and the first connecting cap is provided with a second internal thread. The upper end of the bone puncture needle is provided with an internal hex bolt. The bone puncture needle passes through the first connecting cap and the puncture sleeve in sequence. The internal hex bolt is tightened into the second internal thread. The pistol drill is used to drive the internal hex bolt to rotate so that the bone puncture needle can make a hole in the bone model. The infusion kit includes an infusion bag and an infusion tube. The infusion bag is provided with a first bag opening rubber stopper and a first vent valve at its end. The infusion tube is provided with a first skin plug puncture needle at its upper end, a second connecting cap at its lower end, and an infusion regulator in the center. The second connecting cap is provided with a second external thread. The first skin plug puncture needle passes through the first bag opening rubber stopper and extends into the inner cavity of the infusion bag. The second external thread is tightened onto the second internal thread to connect the inner cavity of the infusion tube and the inner cavity of the puncture sleeve. The liquid collection kit includes a liquid collection bag and a liquid collection tube. The end of the liquid collection bag is provided with a second bag opening rubber stopper and a second vent valve. The lower end of the liquid collection tube is provided with a second rubber stopper puncture needle and the upper end is connected to a quick connector. The second rubber stopper puncture needle passes through the second bag opening rubber stopper and extends into the inner cavity of the liquid collection bag. The quick connector is threadedly connected to the drain threaded hole.

2. The bone marrow infusion technique training model according to claim 1, characterized in that, The bone marrow cavity is filled with high-density foam.

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