A portable infusion device for aeromedical rescue

By designing a gunpowder-ignited pressurization component and an elastic clamp, the problem of air pressure fluctuations in high-altitude areas for aviation rescue devices was solved, enabling rapid and stable deployment of the telescopic sleeve and improving portability and safety.

CN121288082BActive Publication Date: 2026-07-14SECOND MEDICAL CENT OF CHINESE PLA GENERAL HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SECOND MEDICAL CENT OF CHINESE PLA GENERAL HOSPITAL
Filing Date
2025-12-08
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing air rescue devices are prone to leakage or bursting due to pressure fluctuations when the air pressure changes at high altitudes. They are also inconvenient to operate and cannot meet the requirements of lightweight, portability and air pressure adaptability.

Method used

The telescopic sleeve is automatically extended and deployed using high-pressure gas, and rapid deployment is achieved by using a gunpowder-ignited pressurization component. Combined with elastic clamps and folding fixing components, it ensures sealing and stability.

Benefits of technology

It enables rapid and stable deployment in high-altitude areas, reduces operational difficulty, avoids unexpected situations caused by air pressure fluctuations, and improves portability and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application belongs to the technical field of infusion devices, and particularly relates to a portable infusion device for aviation rescue. The portable infusion device comprises a pressurizing assembly, a telescopic locking assembly, a mounting platform, a folding fixing assembly and a sealing plate. The pressurizing assembly is arranged in the telescopic locking assembly. The mounting platform is arranged at the top of the telescopic locking assembly. The folding fixing assembly is arranged outside the telescopic locking assembly. The sealing plate is arranged at the bottom of the telescopic locking assembly. On the basis of folding storage, the application further provides a rapid pressurizing scheme based on powder explosion. On the one hand, the sealing requirement of the telescopic sleeve is lower, and on the other hand, the rapid pressurizing scheme can avoid air pressure accidents caused by large air pressure fluctuation when the height of the airplane changes greatly.
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Description

Technical Field

[0001] This invention belongs to the field of infusion device technology, specifically referring to a portable infusion device for air rescue. Background Technology

[0002] Air rescue equipment is mainly used in the following scenarios:

[0003] A: Essential supplies that need to be kept on board a manned spacecraft;

[0004] B: When it is difficult for external rescue personnel to enter after an air crash, they will usually first airdrop supplies towards the target location.

[0005] C: Rescue personnel also need to carry rescue supplies when entering the area.

[0006] In the above scenarios, high requirements are placed on the lightweight, portability and ease of operation of the materials. In A and B, there are also requirements on air pressure adaptability. Currently, conventional medical materials have not been designed in depth for the above scenarios. Summary of the Invention

[0007] In view of the above situation and to overcome the shortcomings of the prior art, the present invention provides a portable infusion device for air rescue. This solution proposes an air rescue infusion device that can be quickly deployed with one hand, is highly portable, and has air pressure adaptability. For the support rod used for infusion, the conventional solution is to use a telescopic structure; however, how to quickly deploy the telescopic structure is a problem that requires comprehensive consideration of many factors.

[0008] Since the spring's extension ratio is limited, this invention uses high-pressure gas to automatically extend and deploy the telescopic sleeve. This solution can be used on the ground, but when the aircraft is at a high altitude, due to the decrease in external air pressure, the telescopic sleeve may automatically extend or burst open and leak gas under excessive pressure difference.

[0009] To address this issue, this solution proposes a rapid pressurization scheme based on gunpowder detonation. This approach reduces the sealing requirements of the telescopic sleeve and avoids unexpected pressure situations caused by large pressure fluctuations when the aircraft's altitude changes significantly.

[0010] The technical solution adopted by the present invention is as follows: The present invention proposes a portable infusion device for air rescue, including a pressurizing component, a telescopic locking component, a mounting platform, a folding fixing component and a sealing plate. The pressurizing component is located in the telescopic locking component, the mounting platform is located on the top of the telescopic locking component, the folding fixing component is located on the outside of the telescopic locking component, and the sealing plate is located at the bottom of the telescopic locking component.

[0011] The telescopic locking assembly includes a telescopic sleeve, which is composed of multiple parts of different diameters that are sequentially connected.

[0012] Furthermore, the pressurization assembly includes a bracket, a miniature explosive, a delay lead, and a trigger lead. The bracket is fixed to the inner wall of the innermost telescopic sleeve, and the miniature explosive is fixed inside the bracket.

[0013] When the trigger wire is pulled, it can ignite the miniature gunpowder, creating a high-pressure zone inside the telescopic sleeve, which in turn drives the telescopic sleeve to automatically extend and expand. This can greatly improve the deployment speed and reduce the difficulty of operation when emergency rescue or when the injured person operates it with one hand.

[0014] Compared to pre-filling, using gunpowder to create a high-pressure zone requires less stringency in the telescopic sleeve and can also prevent unexpected air pressure situations caused by large air pressure fluctuations when the aircraft's altitude changes significantly.

[0015] Furthermore, the trigger wire is slidably disposed in the sealing plate, the delay wire is disposed on the miniature gunpowder, the delay wire is provided with an ignition part, the trigger wire is disposed on the ignition part, and the bottom of the trigger wire is provided with a pull ring.

[0016] Preferably, the telescopic locking assembly further includes an elastic clamp, the top of the telescopic sleeve is provided with a flange, the flange is provided with an inner concave ring, and the bottom of the telescopic sleeve is provided with an outer concave ring that matches the elastic clamp.

[0017] The elastic clamp has an open structure. When the inner concave ring coincides with the outer concave ring of the inner layer, the elastic clamp will automatically enter the outer concave ring from the inner concave ring, thereby locking the relative position of the two telescopic sleeves.

[0018] When the telescopic sleeve needs to retract, a large force is required to push it, causing the elastic clamp to deform and re-enter the concave ring. The locking force of the telescopic sleeve can be calibrated and preset by the elastic force of the elastic clamp.

[0019] Furthermore, the mounting platform includes a top cap and a mounting platform. The top cap is fixed to the top of the innermost telescopic sleeve, and the mounting platform is disposed on the top cap. Elastic hooks are evenly distributed in a ring on the mounting platform.

[0020] Furthermore, the folding fixing assembly includes an outer sleeve and a folding ground stake. The outer sleeve is fixed to the outermost telescopic sleeve. The outer sleeve is provided with a horizontal groove and a vertical groove. The folding ground stake is rotatably disposed in the vertical groove.

[0021] When the miniature gunpowder is ignited, it can push the telescopic sleeve to extend and unfold, and the impact of the airflow on the sealing plate can also insert the unfolded folded ground nail into the soil, automatically completing the fixation.

[0022] Furthermore, the sealing plate is located at the bottom of the outermost telescopic sleeve.

[0023] Preferably, the elastic clamp is an open annular shape.

[0024] The beneficial effects achieved by the present invention using the above structure are as follows:

[0025] (1) When the trigger wire is pulled, it can ignite the miniature gunpowder, creating a high-voltage zone inside the telescopic sleeve, thereby driving the telescopic sleeve to automatically extend and expand. This can greatly improve the expansion speed and reduce the difficulty of operation when the injured person operates with one hand during emergency rescue.

[0026] (2) By using gunpowder to create a high-pressure zone, compared with pre-filling, the sealing requirements of the telescopic sleeve are lower, and the air pressure accident caused by large air pressure fluctuations when the aircraft altitude changes greatly can be avoided.

[0027] (3) The elastic clamp is an open structure. When the inner concave ring coincides with the outer concave ring of the inner layer, the elastic clamp will automatically enter the outer concave ring from the inner concave ring, thereby locking the relative position of the two telescopic sleeves.

[0028] (4) When the telescopic sleeve needs to be retracted, a larger force is needed to push it so that the elastic clamp can be deformed and re-enter the concave ring; the locking force of the telescopic sleeve can be calibrated and preset by the elastic force of the elastic clamp.

[0029] (5) When the miniature gunpowder is ignited, it can push the telescopic sleeve to extend and unfold, and the airflow impact on the sealing plate can also insert the unfolded folded ground nail into the soil to automatically complete the fixing. Attached Figure Description

[0030] Figure 1 This is a perspective view of a portable infusion device for air rescue proposed in this invention;

[0031] Figure 2 This is a front view of a portable infusion device for air rescue proposed in this invention;

[0032] Figure 3 for Figure 2 A cross-sectional view along section line AA;

[0033] Figure 4 for Figure 3 A magnified view of a section at point I;

[0034] Figure 5 for Figure 3 Enlarged view of a section at point II;

[0035] Figure 6 for Figure 1 A magnified view of a section at point III.

[0036] Among them, 1. pressurization component, 2. telescopic locking component, 3. mounting platform, 4. folding fixing component, 5. sealing plate, 11. bracket, 12. miniature explosive, 13. time delay fuse, 14. trigger fuse, 21. telescopic sleeve, 22. elastic clamp, 31. top cap, 32. mounting platform, 41. outer sleeve, 42. folding ground nail, 131. ignition part, 141. pull ring, 211. flange part, 212. inner concave ring, 213. outer concave ring, 321. elastic hook, 411. horizontal groove, 412. vertical groove.

[0037] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0039] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element 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 invention.

[0040] like Figures 1-6 As shown, the present invention proposes a portable infusion device for air rescue, including a pressurizing component 1, a telescopic locking component 2, a mounting platform 3, a folding fixing component 4, and a sealing plate 5. The pressurizing component 1 is located in the telescopic locking component 2, the mounting platform 3 is located on the top of the telescopic locking component 2, the folding fixing component 4 is located on the outside of the telescopic locking component 2, and the sealing plate 5 is located at the bottom of the telescopic locking component 2.

[0041] The telescopic locking assembly 2 includes a telescopic sleeve 21, which is composed of multiple parts of different diameters connected in sequence.

[0042] The pressurization assembly 1 includes a bracket 11, a miniature explosive 12, a delay lead 13, and a trigger lead 14. The bracket 11 is fixed to the inner wall of the innermost telescopic sleeve 21, and the miniature explosive 12 is fixed to the inside of the bracket 11.

[0043] When the trigger wire 14 is pulled, it can ignite the miniature gunpowder 12, creating a high-voltage zone inside the telescopic sleeve 21, thereby driving the telescopic sleeve 21 to automatically extend and unfold. This can greatly improve the unfolding speed and reduce the difficulty of operation when emergency rescue or when the injured person operates with one hand.

[0044] Compared with pre-filling, using gunpowder to create a high-pressure zone has lower requirements for the sealing of the telescopic sleeve 21 and can also avoid unexpected air pressure situations caused by large air pressure fluctuations when the aircraft's altitude changes significantly.

[0045] The trigger wire 14 is slidably disposed in the sealing plate 5, the delay wire 13 is disposed on the miniature gunpowder 12, the delay wire 13 is provided with an ignition part 131, the trigger wire 14 is disposed on the ignition part 131, and the bottom of the trigger wire 14 is provided with a pull ring 141.

[0046] The telescopic locking assembly 2 also includes an elastic clamp 22, a flange 211 is provided at the top of the telescopic sleeve 21, an inner concave ring 212 is provided on the flange 211, and an outer concave ring 213 that matches the elastic clamp 22 is provided at the bottom of the telescopic sleeve 21.

[0047] The elastic clamp 22 has an open structure. When the inner concave ring 212 coincides with the inner outer concave ring 213, the elastic clamp 22 will automatically enter the outer concave ring 213 from the inner concave ring 212, thereby locking the relative position of the two telescopic sleeves 21.

[0048] When the telescopic sleeve 21 needs to retract, a larger force is required to push it, which will cause the elastic clamp 22 to deform and re-enter the concave ring 212. The locking force of the telescopic sleeve 21 can be calibrated and preset by the elastic force of the elastic clamp 22.

[0049] The mounting platform 3 includes a top cap 31 and a mounting platform 32. The top cap 31 is fixed to the top of the innermost telescopic sleeve 21. The mounting platform 32 is located on the top cap 31, and elastic hooks 321 are evenly distributed in a ring on the mounting platform 32.

[0050] The folding fixing assembly 4 includes an outer sleeve 41 and a folding ground nail 42. The outer sleeve 41 is fixed to the outermost telescopic sleeve 21. The outer sleeve 41 is provided with a horizontal groove 411 and a vertical groove 412. The folding ground nail 42 is rotatably disposed in the vertical groove 412.

[0051] When the miniature gunpowder 12 is ignited, it can push the telescopic sleeve 21 to extend and unfold. The impact of the airflow on the sealing plate 5 can also insert the unfolded folded ground nail 42 into the soil and automatically complete the fixing.

[0052] The sealing plate 5 is located at the bottom of the outermost telescopic sleeve 21.

[0053] The elastic clamp 22 is an open ring.

[0054] In actual use, the user first needs to take out the device. If it needs to be used by hand, the user can pull the ring 141 directly when there are no obstacles in the direction of movement of the mounting platform 3.

[0055] The trigger wire 14 is pulled out of the ignition part 131 and the delay wire 13 is ignited by friction heating. The burning speed of the delay wire 13 is too slow, so after pulling the pull ring 141, the user has several seconds to adjust the position and orientation of the device.

[0056] After the miniature gunpowder 12 is ignited, it will generate a large amount of gas in a short time, causing the gas pressure inside the telescopic sleeve 21 to rise rapidly. The internal gas pressure pushes the top cap 31, which in turn causes the telescopic sleeve 21 to extend in sequence.

[0057] In the initial state, the elastic clamp 22 is located in the inner concave ring 212 and is in an expanded state. When the inner concave ring 212 coincides with the inner outer concave ring 213, the elastic clamp 22 will automatically enter the outer concave ring 213 from the inner concave ring 212, thereby locking the relative position of the two telescopic sleeves 21.

[0058] Then, hang the infusion bottle on the elastic hook 321 to perform the infusion.

[0059] If this device needs to be inserted into the ground for operation, the folding ground nail 42 should be folded to the opposite direction of the top cap 31, and then the pull ring 141 should be pulled in the same way to place the folding ground nail 42 roughly on the ground.

[0060] The gas produced by the combustion of the miniature gunpowder 12 pushes the top cap 31 and the sealing plate 5 at the same time, thereby inserting the folded ground nail 42 into the soil and automatically completing the fixing.

[0061] In the event that the miniature gunpowder 12 fails due to liquid immersion or other reasons, the telescopic sleeve 21 can still be pulled out manually and the folding ground nail 42 can still be installed. In the event of such an accident, although the convenience of the device is partially lost, its functionality remains intact.

[0062] 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 apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0063] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A portable infusion device for air rescue, characterized in that: It includes a pressurizing assembly (1), a telescopic locking assembly (2), a mounting platform (3), a folding fixing assembly (4), and a sealing plate (5). The pressurizing assembly (1) is located in the telescopic locking assembly (2), the mounting platform (3) is located on the top of the telescopic locking assembly (2), the folding fixing assembly (4) is located on the outside of the telescopic locking assembly (2), and the sealing plate (5) is located at the bottom of the telescopic locking assembly (2). The telescopic locking assembly (2) includes a telescopic sleeve (21), which is composed of multiple parts of different diameters connected in sequence; The pressurization assembly (1) includes a bracket (11), a miniature explosive (12), a delay lead (13), and a trigger lead (14). The bracket (11) is fixed to the inner wall of the innermost telescopic sleeve (21), and the miniature explosive (12) is fixed to the inside of the bracket (11). The trigger lead (14) is slidably disposed in the sealing plate (5), the delay lead (13) is disposed on the miniature gunpowder (12), the delay lead (13) is provided with an ignition part (131), the trigger lead (14) is disposed on the ignition part (131), and the bottom of the trigger lead (14) is provided with a pull ring (141). The folding fixing assembly (4) includes an outer sleeve (41) and a folding ground nail (42). The outer sleeve (41) is fixed to the outermost telescopic sleeve (21). The outer sleeve (41) is provided with a horizontal groove (411) and a vertical groove (412). The folding ground nail (42) is rotatably disposed in the vertical groove (412).

2. The portable infusion device for air rescue according to claim 1, characterized in that: The telescopic locking assembly (2) also includes an elastic clamp (22), the top of the telescopic sleeve (21) is provided with a flange (211), the flange (211) is provided with an inner concave ring (212), and the bottom of the telescopic sleeve (21) is provided with an outer concave ring (213) that matches the elastic clamp (22).

3. The portable infusion device for air rescue according to claim 1, characterized in that: The mounting platform (3) includes a top cap (31) and a mounting platform (32). The top cap (31) is fixed to the top of the innermost telescopic sleeve (21). The mounting platform (32) is located on the top cap (31). Elastic hooks (321) are evenly distributed in a ring on the mounting platform (32).

4. A portable infusion device for air rescue according to claim 3, characterized in that: The sealing plate (5) is located at the bottom of the outermost telescopic sleeve (21).

5. A portable infusion device for air rescue according to claim 2, characterized in that: The elastic clamp (22) is an open annular ring.

Citation Information

Patent Citations

  • Injection pen and injection device

    CN112402740A

  • Portable automatic contraction infusion support

    CN213822929U

  • Pedal type telescopic infusion support

    CN214970173U