Graded failure cable for external defibrillator

Abstract

The utility model provides a graded failure cable for an external defibrillator. The graded failure cable comprises a protective sleeve, a first electronic wire group and a second electronic wire group, wherein the first electronic wire group and the second electronic wire group are arranged in the protective sleeve; the protective sleeve comprises an outer protective layer, a belting layer and a nylon braid layer which are sequentially arranged from outside to inside; the first electronic wire group comprises at least two high-voltage wires, the second electronic wire group comprises at least two coaxial wires, and the high-voltage wires and the coaxial wires have the same number and are adjacently arranged at intervals; the coaxial line is sequentially coated with an inner sheath layer, a metal shielding layer and an insulating layer from inside to outside, and the high-voltage line is coated with an insulating layer; and aramid fiber lines are arranged in line gaps formed among the first electronic line group, the protective sleeve and the second electronic line group. Through layered protection, independent wire group layout and tensile material application, the problems that a traditional cable is prone to breakage and synchronization fails are solved, and the external defibrillation cable is suitable for an external defibrillation scene with high requirements for reliability and safety.

Description

Technical Field

[0001] This application relates to the field of cable technology, and in particular to a graded failure cable for an external defibrillator. Background Technology

[0002] As a core component of emergency medical equipment, the reliability of the cable in an external defibrillator (AED) directly affects the patient's life safety. However, existing AED cables have significant deficiencies in terms of mechanical strength, insulation performance, and failure mode control.

[0003] Traditional cables have weak tensile strength, and PVC / silicone insulation materials are prone to breakdown under 5kV high voltage, making them unsuitable for the complex mechanical and electrical environment in mobile emergency rescue scenarios.

[0004] The existing external defibrillator cables use the same structural design for the signal line and high-voltage line, which leads to simultaneous failure of both. In the event of a sudden failure, there is no early warning mechanism, which can easily cause the risk of high-voltage circuit breakers and does not meet the safety requirements of emergency equipment. Utility Model Content

[0005] In view of the aforementioned problems, this application is made to provide a graded failure cable for an external defibrillator that overcomes or at least partially solves the aforementioned problems, comprising a protective sheath and a first electronic wire group and a second electronic wire group disposed within the protective sheath; the protective sheath comprises an outer sheath, a wrapping layer and a nylon braided layer arranged sequentially from the outside to the inside; the first electronic wire group comprises at least two high-voltage wires, and the second electronic wire group comprises at least two coaxial wires, the number of high-voltage wires and the coaxial wires being the same and arranged adjacent to each other at intervals; the coaxial wires are covered sequentially from the inside to the outside with an inner sheath layer, a metal shielding layer and an insulation layer, and the high-voltage wires are covered with an insulation layer; aramid fiber threads are disposed in the gaps between the first electronic wire group, the protective sheath and the second electronic wire group.

[0006] Preferably, the core of the high-voltage line and the core of the coaxial line are both made of pre-stranded tin-plated copper wire containing aramid fibers.

[0007] Preferably, the core of the high-voltage line is made of 19 strands of tin-plated copper wire containing 130D aramid, wherein the number of strands is 19.

[0008] Preferably, the core of the coaxial cable is made of 11 strands of tin-plated copper wire containing 200D aramid twisted together, wherein the number of twisted strands is 7.

[0009] Preferably, the first electron wire group includes a first high-voltage wire and a second high-voltage wire; the second electron wire group includes a first coaxial line and a second coaxial line.

[0010] Preferably, the first high-voltage line and the second high-voltage line are arranged opposite to each other, the first coaxial cable and the second coaxial cable are arranged opposite to each other, and the center of the four core wires are connected.

[0011] Preferably, the metal shielding layer is any one of copper foil wire shielding layer, silver-plated copper wire braided shielding layer, and aluminum-magnesium alloy wire braided layer.

[0012] Preferably, the filling density of the aramid fiber yarn is 60%-80% of the volume of the gaps between the yarns, and its tensile strength is not less than 2000MPa.

[0013] Preferably, the outer protective layer is made of thermoplastic polyurethane elastomer.

[0014] Preferably, the weaving angle of the nylon braided layer is 45° to 60°, and the weaving density is not less than 80%.

[0015] This application has the following advantages:

[0016] In the embodiments of this application, in view of the problems of "too many button switches leading to cumbersome operation, easy accidental touch, and insufficient sealing" in the prior art, this application provides a solution based on cable posture sensing to control the working state and mode, specifically: including a cable body and a lighting source, battery, main control circuit board and motion sensor for detecting the cable posture state disposed in the cylinder; the main control circuit board is electrically connected to the lighting source, battery and motion sensor respectively, and the motion sensor is fixed to the main control circuit board; when the posture state of the cable changes, the motion sensor outputs a corresponding electrical signal to the main control circuit board, so that the main control circuit board adjusts the lighting brightness and / or the light source flicker frequency of the lighting source. By setting up motion sensors to detect changes in the cable's posture and output corresponding electrical signals, the main control circuit board dynamically adjusts the lighting parameters of the light source based on the changes in signals. Users only need to perform preset actions, such as rotating the cable clockwise or counterclockwise, or moving it quickly forward or backward, to switch the cable's working mode and status, without relying on traditional physical buttons or complex key combinations. In dark environments, users can also quickly and intuitively control the cable through spatial orientation, further improving operational accuracy and efficiency. In addition, there is no need to install multiple buttons or switches on the outer surface of the cable body, which further improves its waterproof performance while ensuring functional integrity. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this application, the drawings used in the description of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a cross-sectional structural schematic diagram of a graded failure cable for an external defibrillator provided in one embodiment of this application.

[0019] The reference numerals in the accompanying drawings are as follows:

[0020] 1. Protective sleeve; 2. Outer sheath; 3. Wrapping tape layer; 4. Nylon braided layer; 5. High voltage line; 6. Coaxial cable; 7. Inner sheath layer; 8. Metal shielding layer; 9. Insulation layer; 10. Aramid fiber thread. Detailed Implementation

[0021] To make the objectives, features, and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] The inventors discovered through analysis of existing technologies that traditional PVC / silicone insulation materials have low mechanical strength and are easily damaged by bending or trampling in complex emergency rescue scenarios, and have poor insulation reliability under high voltage. At the same time, the homogeneous design of signal lines and high-voltage lines leads to a strong correlation between their failures and a lack of fault warning mechanisms, which cannot meet the safety redundancy requirements of emergency rescue equipment.

[0023] Reference Figure 1 This paper illustrates a structural schematic diagram of a graded failure cable for an external defibrillator according to this application. Specifically, it may include a protective sleeve 1 and a first electronic wire group and a second electronic wire group disposed within the protective sleeve 1. The protective sleeve 1 includes an outer sheath 2, a wrapping layer 3, and a nylon braided layer 4 arranged sequentially from the outside to the inside. The first electronic wire group includes at least two high-voltage wires 5, and the second electronic wire group includes at least two coaxial wires 6. The number of high-voltage wires 5 and coaxial wires 6 are the same, and they are arranged adjacent to each other at intervals. The coaxial wires 6 are covered with an inner sheath layer 7, a metal shielding layer 8, and an insulation layer 9 from the inside to the outside. The high-voltage wires 5 are covered with the insulation layer 9. The gaps between the first electronic wire group, the protective sleeve 1, and the second electronic wire group are provided with aramid fiber threads 10.

[0024] In the embodiments of this application, addressing the problem of "weak tensile strength of cables and synchronous failure of signal lines and high-voltage lines 5" in the prior art, this application provides a graded failure cable for external defibrillators, including a protective sleeve 1 and a first electronic wire group and a second electronic wire group disposed within the protective sleeve 1; the protective sleeve 1 includes an outer sheath 2, a wrapping layer 3, and a nylon braided layer 4 arranged sequentially from the outside to the inside; the first electronic wire group includes at least two high-voltage lines 5, and the second electronic wire group includes at least two coaxial lines 6, the number of high-voltage lines 5 and the coaxial lines 6 are the same, and they are arranged adjacent to each other at intervals; the coaxial lines 6 are covered sequentially from the inside to the outside by an inner sheath layer 7, a metal shielding layer 8, and an insulation layer 9, and the high-voltage lines 5 are covered by the insulation layer 9; the gaps between the first electronic wire group, the protective sleeve 1, and the second electronic wire group are provided with aramid fiber threads 10. This application solves the problems of easy breakage and synchronous failure of traditional cables through layered protection, independent wire group layout, and the application of tensile-resistant materials, and is suitable for external defibrillation scenarios with high requirements for reliability and safety.

[0025] The following will further describe a graded failure cable for an external defibrillator in this exemplary embodiment.

[0026] In one embodiment of this application, a protective sleeve 1 and a first electronic wire group and a second electronic wire group disposed within the protective sleeve 1 are included. The protective sleeve 1 includes an outer sheath 2, a wrapping layer 3, and a nylon braided layer 4 arranged sequentially from the outside to the inside. The first electronic wire group includes at least two high-voltage wires 5, and the second electronic wire group includes at least two coaxial cables 6. The number of high-voltage wires 5 and coaxial cables 6 are the same, and they are arranged adjacent to each other at intervals. The coaxial cables 6 are covered sequentially from the inside to the outside with an inner sheath layer 7, a metal shielding layer 8, and an insulation layer 9. The high-voltage wires 5 are covered with the insulation layer 9. The gaps between the first electronic wire group, the protective sleeve 1, and the second electronic wire group are provided with aramid fiber threads 10.

[0027] In one specific embodiment, please refer to Figure 1 This application provides a cross-sectional structural schematic diagram of a graded failure cable for an external defibrillator according to an embodiment.

[0028] The core of both the high-voltage line 5 and the coaxial line 6 is made of pre-stranded tin-plated copper wire containing aramid. The core of the high-voltage line 5 is made of 19 strands of tin-plated copper wire containing 130D aramid twisted together, wherein the number of twisted strands is 19. The core of the coaxial line 6 is made of 11 strands of tin-plated copper wire containing 200D aramid twisted together, wherein the number of twisted strands is 7.

[0029] It should be noted that the high-voltage line core 5 is made of 19 strands of tin-plated copper wire containing 130D (denier, a unit of fiber thickness) aramid, using a 19-strand twisted structure to ensure high mechanical strength during high current transmission; the coaxial line core 6 is made of 11 strands of tin-plated copper wire containing 200D aramid, using a 7-strand twisted structure, reducing weight while ensuring signal transmission quality. The addition of aramid fiber significantly improves the tensile strength of the core, while the tin-plated copper wire enhances conductivity and corrosion resistance, and the twisting process further optimizes flexibility and durability.

[0030] The first electronic wire group includes a first high-voltage wire 5 and a second high-voltage wire 5; the second electronic wire group includes a first coaxial cable 6 and a second coaxial cable 6. The first high-voltage wire 5 and the second high-voltage wire 5 are arranged opposite to each other, and the first coaxial cable 6 and the second coaxial cable 6 are arranged opposite to each other. The center line connecting the four wire cores forms a rhombus.

[0031] It should be noted that the first electronic wire group includes two high-voltage wires 5 (first and second high-voltage wires 5), and the second electronic wire group includes two coaxial cables 6 (first and second coaxial cables 6), with the four cores arranged in pairs facing each other. By arranging the high-voltage wires 5 and coaxial cables 6 alternately and forming a diamond structure with the center lines of the four, the internal space utilization of the cable is optimized, and the uniform distribution of mechanical stress is ensured, avoiding excessive stress on one side when bending. At the same time, the separate layout of the high-voltage wires 5 and the signal lines can reduce electromagnetic interference and meet the design requirements for graded failure.

[0032] The metal shielding layer 8 is any one of copper foil wire shielding, silver-plated copper wire braided shielding, or aluminum-magnesium alloy wire braided shielding. The aramid fiber yarn 10 has a filling density of 60%-80% of the inter-thread void volume and a tensile strength of not less than 2000 MPa. The outer sheath 2 is made of thermoplastic polyurethane elastomer. The nylon braided layer 4 has a braiding angle of 45° to 60° and a braiding density of not less than 80%.

[0033] It should be noted that the metal shielding layer 8 uses highly conductive materials (copper foil wire, silver-plated copper wire, or aluminum-magnesium alloy wire braided layer) to ensure the coaxial cable 6's resistance to electromagnetic interference; the aramid fiber wire 10 tightly fills the gaps with a fill density of 60%-80%, combined with a tensile strength of ≥2000MPa, significantly improving the cable's tensile strength; the outer sheath 2 uses thermoplastic polyurethane (TPU) elastomer, taking into account flexibility, abrasion resistance, and environmental adaptability; the nylon braided layer 4 covers the cable with a braiding angle of 45°-60° and a density of ≥80%, enhancing its anti-kink and impact resistance, and protecting the internal core. These designs work together to improve the cable's reliability and lifespan under complex operating conditions.

[0034] In another embodiment, the high-voltage line 5 can adopt a double-layer insulation structure (such as an inner layer of cross-linked polyethylene + an outer layer of silicone rubber) to ensure that only the outer layer fails when the high voltage breaks down, while the inner layer can still maintain its function for a short time; the coaxial line 6 can be equipped with redundant signal lines (such as twisted-pair shielded pairs) to switch to the backup line when the main coaxial line 6 fails, so as to achieve uninterrupted signal transmission.

[0035] In another embodiment, a spirally wound elastomeric buffer layer (such as silicone or TPEE) can be added between the nylon braided layer 4 and the outer sheath 2 to absorb dynamic stress during bending and reduce the risk of fatigue fracture of the wire core. The nylon braided layer 4 adopts a variable angle braid (such as a 45°-60° gradient) to enhance the anti-knotting ability in areas with frequent bending.

[0036] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0037] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0038] The above provides a detailed description of a graded failure cable for an external defibrillator provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A hierarchical fail-safe cable for an external defibrillator, comprising: It includes a protective sleeve and a first and a second electronic wire group disposed within the protective sleeve; The protective sleeve includes an outer protective layer, a wrapping layer, and a nylon braided layer arranged sequentially from the outside to the inside; The first electronic wire group includes at least two high-voltage wires, and the second electronic wire group includes at least two coaxial wires. The number of high-voltage wires and coaxial wires are the same, and they are arranged adjacent to each other at intervals. The coaxial cable is covered from the inside out with an inner sheath layer, a metal shielding layer and an insulation layer, and the high-voltage line is covered with an insulation layer. The gaps between the first electronic wire group, the protective sleeve, and the second electronic wire group are provided with aramid fiber threads.

2. The cable of claim 1, wherein, The core of the high-voltage line and the core of the coaxial line are both made of pre-stranded tin-plated copper wire containing aramid.

3. The cable of claim 2, wherein, The core of the high-voltage line is made of 19 strands of tin-plated copper wire containing 130D aramid, twisted together.

4. The cable of claim 2, wherein, The core of the coaxial cable is made of 11 strands of tin-plated copper wire containing 200D aramid twisted together, of which 7 strands are twisted together.

5. The cable of claim 1, wherein, The first electron wire group includes a first high-voltage wire and a second high-voltage wire; The second electron wire group includes a first coaxial line and a second coaxial line.

6. The cable of claim 5, wherein, The first high-voltage line and the second high-voltage line are arranged opposite each other, the first coaxial line and the second coaxial line are arranged opposite each other, and the center line of the four cores forms a rhombus.

7. The cable of claim 1, wherein, The metal shielding layer is any one of copper foil wire shielding layer, silver-plated copper wire braided shielding layer, or aluminum-magnesium alloy wire braided layer.

8. The cable of claim 1, wherein, The filling density of the aramid fiber yarn is 60%-80% of the volume of the voids between the yarns, and its tensile strength is not less than 2000MPa.

9. The cable of claim 1, wherein, The outer protective layer is made of thermoplastic polyurethane elastomer.

10. The cable of claim 1, wherein, The nylon braided layer has a braiding angle of 45° to 60° and a braiding density of not less than 80%.

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