Simple and portable bare-handed external chest compression assist device

Abstract

The utility model belongs to the technical field of external chest compression, and particularly discloses a simple and portable bare-handed external chest compression assist device which comprises a base and a compression pad arranged on the upper surface of the base, a buffer cavity is formed between the base and the compression pad, the base and the compression pad are connected in a sealed mode, and the buffer cavity is communicated with the buffer cavity. A bonding layer is arranged on the lower surface of the base, and a spraying layer is arranged on the upper surface of the pressing pad. According to the simple and portable bare-handed external chest compression assist device, the compression position fixing function, the buffering function and the damping function are achieved, the local pressure intensity is reduced while the compression strength is guaranteed, once the device is accurately fixed, a rescuer and a compression part are not changed in each alternating process, and therefore the injury risk caused by compression is reduced, and the safety of the rescuer is improved. The quality of bare-handed external chest compression is improved; or, a longer time is provided for installing a more professional external chest compression assist device for the patient and a professional rescuer, and the CPR success rate of the CA patient is further improved.

Description

Technical Field

[0001] This utility model relates to the field of chest compression technology, and in particular to a simple and portable manual chest compression aid. Background Technology

[0002] According to international practice, cardiac arrest (CA) is classified into out-of-hospital cardiac arrest (OHCA) and in-hospital cardiac arrest (IHCA) depending on the location of the incident. Timely cardiopulmonary resuscitation (CPR) during CA determines the survival rate and neurological prognosis of CA patients. Within CPR, the quality of chest compressions is crucial for maintaining organ perfusion and ultimately determines the prognosis of CA patients. Chest compressions can be performed manually or mechanically. The main advantage of manual chest compressions is that they can be performed immediately on-site, thus improving the chances of survival.

[0003] However, manual chest compressions have certain limitations. For example, in cases of out-of-hospital cardiac arrest (OHCA), the person performing CPR may be a non-professional, or someone who has never received standardized CPR training. Even professionals may make inaccurate or misaligned compression sites during emergency resuscitation. Inaccurate compression sites can easily lead to complications such as rib fractures and reduced compression effectiveness. Standard manual compressions only achieve 25%-40% cardiac output, and non-standard techniques will result in even lower cardiac output. These situations are often common outside of hospitals or during patient transport to the hospital (transfer from the scene to the hospital).

[0004] Furthermore, out-of-hospital cardiac arrest (OHCA) is a leading cause of death in adults, and with the increasing number of OHCA events, pre-hospital emergency care tasks are also increasing year by year. At the same time, CPR is gradually being promoted as a basic public skill. However, when encountering CA and needing CPR outside of hospitals (by non-professionals) or at various emergency transport facilities, the public often makes mistakes such as inaccurate chest compression positions, inconsistent compression locations, and excessive force leading to secondary injuries such as rib fractures. Such improper and ineffective compressions affect CPR efficiency, reduce the rate of spontaneous circulation recovery, and lower survival rates. Therefore, ineffective or "futile" resuscitation during OHCA resuscitation has gradually attracted the attention of experts and scholars worldwide.

[0005] In existing technologies, chest compression assist devices are typically not installed in public places and emergency transportation facilities such as ambulances, or the installation process is cumbersome, requiring a considerable amount of time to secure them to the chest of the CA patient or the rescuer's hand, thus reducing the survival chances of CA patients. Therefore, it is crucial to improve the quality of manual chest compressions, avoid ineffective compressions, overcome the limitations of manual chest compressions, and provide a simple and portable chest compression assist device. Utility Model Content

[0006] The purpose of this invention is to provide a simple and portable manual chest compression aid that achieves fixed compression position, cushioning function, and shock absorption function, ensuring compression force while reducing local pressure. Once the device is accurately fixed, the compression position will not change with each change of rescuer, thereby reducing the risk of injury caused by compression and improving the quality of manual chest compressions; or, to provide patients and professional rescuers with more time to install more professional chest compression aids, further improving the CPR success rate of CA patients.

[0007] In addition, it is easy to carry and can be stored in public areas along with an automated external defibrillator (AED) for use in various situations; or, the public can carry it with them when traveling, reducing the risk of ineffective or "futile" CPR during out-of-hospital CPR and further improving the success rate of out-of-hospital CPR for OHCA patients.

[0008] To achieve the above objectives, this utility model provides a simple and portable manual chest compression aid, including a base and a compression pad disposed on the upper surface of the base. A buffer cavity is provided between the base and the compression pad, and the base and the compression pad are sealed together. An adhesive layer is provided on the lower surface of the base, and a sprayed coating layer is provided on the upper surface of the compression pad.

[0009] Preferably, both the base and the pressing pad are made of silicone material, and the base and the pressing pad have the same hardness.

[0010] Preferably, the buffer cavity is filled with air, and the height of the buffer cavity is 3-5 mm and the diameter is 50-60 mm.

[0011] Preferably, the diameter of the base is larger than the diameter of the pressing pad.

[0012] Preferably, the diameter of the base is 90-110mm, the diameter of the pressing pad is 50-70mm, and the sum of the thicknesses of the base and the pressing pad is 6.5-10mm.

[0013] Preferably, the sprayed layer is made of pigment, and the adhesive layer is made of adhesive.

[0014] Therefore, the present invention employs the above-mentioned simple and portable manual chest compression aid, which has the following beneficial effects:

[0015] (1) This utility model realizes the fixed pressing position, buffer function and shock absorption function, ensuring the pressing force while reducing local pressure. Once the device is accurately fixed, the pressing position will not change each time the rescuer is replaced, thereby reducing the risk of injury caused by pressing and improving the quality of manual chest compressions; or, it provides more time for patients and professional rescuers to install more professional chest compression aids, further improving the success rate of out-of-hospital CPR for OHCA patients.

[0016] (2) This utility model has the advantages of being easy to carry, simple and efficient to use, low cost and no need for additional energy. It can be stored in public areas together with an automated external defibrillator (AED) and can be used in a variety of emergency scenarios, including being kept in a hospital emergency kit for use during hands-only cardiopulmonary resuscitation; or, the public can carry it with them when traveling, reducing the risk of ineffective or "futile" CPR in the process of out-of-hospital CPR, and further improving the success rate of CPR for CA patients.

[0017] (3) This utility model is equipped with a buffer cavity and a silicone pressing pad. The pressing pad can help the rebound more effectively, thereby improving the diastolic phase of the heart. The buffer and shock-absorbing cavity structure reduces the risk of secondary injury and helps the rebound, thereby improving the diastolic phase of the heart. The bottom of the buffer cavity can remind the user to use appropriate force or insufficient force, thereby ensuring the pressure and depth to prevent ineffective pressing. With the adhesive on the bottom surface, it can be closely attached to the midpoint of the line connecting the two nipples at the manubrium of the sternum, improving the positioning accuracy and ensuring that the accurate position does not shift when the rescuer is replaced each time. It is not easy to press the wrong position, ensuring the pressure while reducing local pressure. Users can perform high-quality cardiopulmonary resuscitation after simple training.

[0018] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a front view of an embodiment of a simple and portable manual chest compression aid according to this utility model;

[0020] Figure 2 This is a side view of an embodiment of a simple and portable manual chest compression aid according to the present invention.

[0021] Figure Labels

[0022] 1. Pressing pad; 2. Buffer cavity; 3. Base; 4. Spray coating layer; 5. Adhesive layer. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0025] Example 1

[0026] As shown in the figure, a simple and portable manual chest compression aid includes a base 3 and a compression pad 1 disposed on the upper surface of the base 3. A buffer cavity 2 is provided between the base 3 and the compression pad 1. The base 3 and the compression pad 1 are sealed together. An adhesive layer 5 is provided on the lower surface of the base 3, and a spray coating layer 4 is provided on the upper surface of the compression pad 1. The overall device has a simple structure and is easy to carry.

[0027] Specifically, both the base 3 and the pressing pad 1 are made of silicone. In this embodiment, liquid silicone is used and manufactured using a silicone hot-melt process. The overall hardness can be controlled by adjusting the proportion of different silicone solutions. The base 3 and the pressing pad 1 have the same hardness, and their hardness is similar to that of human cartilage / muscle tissue.

[0028] The buffer cavity 2 has a height of 4mm and a diameter of 55mm. It is filled with air, though the actual air content is relatively small. This small amount of air serves two purposes: firstly, it enhances the overall cushioning effect, preventing excessive material collapse; secondly, it provides better rebound, effectively improving diastolic function. During actual use, the user presses the pressure pad 1 until the buffer cavity 2 reaches its bottom, and the tactile feedback indicates whether the pressure applied is too high or too low.

[0029] The base 3 has a larger diameter than the pressure pad 1, which increases the overall contact area and reduces pressure while maintaining the total pressure, thus reducing the risk of secondary fractures caused by excessive force on a single area. In this embodiment, the base 3 has a diameter of 100mm, the pressure pad 1 has a diameter of 60mm, and the combined thickness of the base 3 and the pressure pad 1 is 8mm. The base 3 is placed directly above the patient's sternum. When the user presses the pressure pad 1 with the heel of their palm, it fits perfectly, reducing the risk of misalignment and ensuring that the pressing force remains constant while reducing the impulse and pressure through cushioning. Furthermore, its moderate thickness provides cushioning while accurately transmitting the pressing force to the patient's sternal manubrium.

[0030] The spray layer 4 uses pigment to prominently display the capital letters "PRESS" in red with bright yellow lettering, making it easily visible and indicating where to press. The adhesive layer 5 uses adhesive and can be applied to the midpoint between the patient's nipples, directly above the sternum. After application, it stabilizes the pressure pad 1, increases friction, and prevents dislocation. The adhesive has a paper backing; after peeling off the paper, it can be quickly and easily applied to the pressure point, like a band-aid.

[0031] Therefore, this utility model adopts the above-mentioned simple and portable manual chest compression aid to achieve fixed compression position, buffer function, and shock absorption function, ensuring compression force while reducing local pressure. Once the device is accurately fixed, the compression position will not change each time the rescuer is switched, thereby reducing the risk of injury caused by compression and improving the quality of manual chest compression; or, it can provide patients and professional rescuers with more time to install more professional chest compression aids, further improving the CPR success rate of CA patients.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A simple and portable manual chest compression aid, characterized in that: It includes a base and a pressing pad disposed on the upper surface of the base. A buffer cavity is provided between the base and the pressing pad. The base and the pressing pad are sealed together. An adhesive layer is provided on the lower surface of the base, and a sprayed coating layer is provided on the upper surface of the pressing pad.

2. The simple portable manual chest compression aid according to claim 1, characterized in that: Both the base and the pressing pad are made of silicone, and the base and the pressing pad have the same hardness.

3. A simple portable manual chest compression aid according to claim 1, characterized in that: The buffer cavity is filled with air, and the height of the buffer cavity is 3-5mm and the diameter is 50-60mm.

4. A simple and portable manual chest compression aid according to claim 1, characterized in that: The diameter of the base is larger than the diameter of the pressing pad.

5. A simple portable manual chest compression aid according to claim 4, characterized in that: The base has a diameter of 90-110mm, the pressing pad has a diameter of 50-70mm, and the sum of the thicknesses of the base and the pressing pad is 6.5-10mm.

6. A simple and portable manual chest compression aid according to claim 1, characterized in that: The spray coating layer uses pigments, and the adhesive layer uses adhesive.

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