A portable soft pressurized chamber with external circulation

By designing a lightweight, foldable, soft pressurization chamber, the problems of heavy and inconvenient pressurization chamber equipment have been solved, realizing a portable, quick-deployment, and safe high-pressure treatment environment suitable for on-site treatment.

CN119700454BActive Publication Date: 2025-10-28CHINESE PEOPLES LIBERATION ARMY NAVAL SPECIALTY MEDICAL CENT
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Patent Information

Application Number
CN202510095824.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2025-10-28
Estimated Expiration
2045-01-22

AI Technical Summary

Technical Problem

Existing pressurization chamber equipment is heavy, inconvenient to carry, and cannot meet the needs of on-site treatment. Traditional steel plate welded structures occupy a large area and cannot be moved.

Method used

Design a portable soft pressurized chamber with external circulation, which adopts a foldable soft bladder and pressure-bearing binding components. The bladder is equipped with multiple rigid interfaces and quick connectors. Combined with polyurethane fabric material and high-frequency compression technology, it achieves lightweight and good airtightness, and is equipped with gas monitoring and communication equipment.

Benefits of technology

It achieves a lightweight, portable, and rapidly deployable pressurized chamber with excellent airtightness and safety. It is suitable for single-person carrying and movement, supports quick connection and real-time gas monitoring, and ensures safety inside the chamber.

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Abstract

This invention discloses a portable soft pressurized chamber with external circulation, comprising a foldable soft capsule and a pressure-bearing binding assembly. The soft capsule has an inner zipper on its inner layer and an outer zipper on its outer layer. A middle zipper is fixed to the side pocket of the inner layer. The soft capsule has a long, narrow opening along its length for user access, and a zipper is fixed to the soft capsule to close the opening. The soft capsule is equipped with a pressurization port, a depressurization port, a pressure measuring port, an oxygen supply port, an oxygen exhaust port, a gas sampling port, a recirculation outlet port, a recirculation inlet port, an intercom port, and a safety valve. The soft capsule is placed inside the pressure-bearing binding assembly. When the soft capsule is under high pressure, the pressure-bearing binding assembly completely binds the outer wall of the soft capsule. The pressurization port, depressurization port, pressure measuring port, oxygen supply port, oxygen exhaust port, gas sampling port, recirculation outlet port, recirculation inlet port, intercom port, and safety valve are all exposed outside the pressure-bearing binding assembly.
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Description

Technical Field

[0001] This invention relates to the field of pressurization technology, and in particular to a portable soft pressurization chamber with external circulation. Background Technology

[0002] Hyperbaric therapy is suitable for treating many diseases with ischemic hypoxia as their physiological basis, as well as decompression sickness, arterial embolism, and poisoning by harmful gases. The treatment process usually involves using a special hyperbaric chamber to create a high-pressure environment for the patient and providing pure oxygen and other respiratory gases under high pressure, allowing the patient to experience the process of pressurization, pressure stabilization, oxygen inhalation, and decompression.

[0003] Traditional hyperbaric chambers are mostly horizontal cylindrical structures welded from steel plates. They require complex sites and supporting facilities and are not mobile, failing to meet the needs of on-site patient treatment. While the flexible hyperbaric chambers commonly found on the market offer improved portability, their weight is still significant due to structural and material limitations. They typically require 3-4 people to move and unfold, and their large folded size makes them difficult to transport, further restricting their use. Summary of the Invention

[0004] This invention addresses the problems and shortcomings of existing technologies by providing a portable soft pressurization chamber with external circulation.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] This invention provides a portable soft pressurized chamber with external circulation, characterized in that it includes a soft chamber body and a pressure-bearing binding assembly. The soft chamber body includes a foldable soft bladder, which has a separate inner layer and an outer layer. The inner layer has an inner elongated hole and an inner zipper that closes the inner elongated hole. The outer layer has an outer elongated hole and an outer zipper that closes the outer elongated hole. Foldable side pockets are fixedly extended from both sides of the inner layer, and the openings of the side pockets form a middle elongated hole. A middle zipper that closes the middle elongated hole is fixed to the side pocket.

[0007] A rigid pressurization perforation seat is fixed to the soft capsule. The rigid pressurization perforation seat has a pressurization port and a pressurization interface fixedly connected to the pressurization port. A rigid decompression perforation seat is fixed to the soft capsule. The rigid decompression perforation seat has a decompression port and a decompression interface fixedly connected to the decompression port. A rigid pressure measuring perforation seat is fixed to the soft capsule. The rigid pressure measuring perforation seat has a pressure measuring port and a pressure measuring interface fixedly connected to the pressure measuring port. A rigid oxygen supply perforation seat is fixed to the soft capsule. The rigid oxygen supply perforation seat has an oxygen supply port and an oxygen supply interface fixedly connected to the oxygen supply port. A rigid oxygen exhaust perforation seat is fixed to the soft capsule. The rigid oxygen exhaust perforation seat has an oxygen exhaust port and an oxygen exhaust interface fixedly connected to the oxygen exhaust port. The soft capsule is fixed with... A rigid gas sampling perforation chamber is provided, wherein a gas sampling port is provided on the rigid gas sampling perforation chamber and a gas sampling interface is fixedly connected to the gas sampling port; a rigid gas outlet perforation chamber is fixed on the soft bladder, wherein a recirculation gas outlet is provided on the rigid gas outlet perforation chamber and a recirculation gas outlet interface is fixedly connected to the recirculation gas outlet; a rigid air inlet perforation chamber is fixed on the soft bladder, wherein a recirculation air inlet is provided on the rigid air inlet perforation chamber and a recirculation air inlet interface is fixedly connected to the recirculation air inlet; a rigid communication perforation chamber is fixed on the rigid communication perforation chamber, wherein an intercom port is provided on the rigid communication perforation chamber and an intercom interface is fixedly connected to the intercom port; and a rigid safety perforation chamber is fixed on the soft bladder, wherein an exhaust port is provided on the rigid safety perforation chamber and a safety valve is provided on the exhaust port.

[0008] The soft capsule is placed inside the pressure-bearing binding assembly. When the soft capsule is under high pressure, the pressure-bearing binding assembly completely binds the outer wall of the soft capsule. The pressurization port, depressurization port, pressure measurement port, oxygen supply port, oxygen exhaust port, gas sampling port, circulating air outlet port, circulating air inlet port, and intercom port are exposed outside the pressure-bearing binding assembly.

[0009] The positive and progressive effects of this invention are as follows: It is simple, safe, and effective to use. The soft capsule is flexible, lightweight, and portable; after folding, it can be placed in a single-person backpack for transport by a single person. The soft capsule is equipped with pressurization, depressurization, pressure measurement, oxygen supply, oxygen exhaust, gas sampling, recirculation exhaust, recirculation intake, and intercom interfaces. During use, quick-connect connectors can be used to rapidly connect to each interface for rapid operation. Simultaneously, to ensure the safety of personnel inside the capsule, a gas analyzer connected to the gas sampling interface can monitor the concentration of various gases inside the capsule in real time, preventing abnormal oxygen or carbon dioxide concentrations from endangering the safety of personnel inside. The intercom interface on the soft capsule allows connection to external communication equipment for communication between the inside and outside of the capsule. Attached Figure Description

[0010] Figure 1 This is a perspective view of a portable soft pressurized chamber with external circulation, representing a preferred embodiment of the present invention.

[0011] Figure 2 This is a top view of a portable soft pressurized chamber with external circulation, representing a preferred embodiment of the present invention.

[0012] Figure 3 for Figure 2 AA diagram.

[0013] Figure 4 for Figure 2 BB diagram.

[0014] Figure 5 for Figure 2 DD diagram.

[0015] Figure 6 This is a perspective view of a pressure-bearing binding assembly according to a preferred embodiment of the present invention. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] like Figure 1-6 As shown, this embodiment provides a portable soft pressurized chamber with external circulation, which includes a soft chamber body and a pressure-bearing binding assembly 2. The soft chamber body includes a foldable soft bladder 1, which has a separate inner layer and an outer layer. The inner layer has an inner elongated hole and an inner zipper that closes the inner elongated hole. The outer layer has an outer elongated hole and an outer zipper 3 that closes the outer elongated hole. Foldable side pockets are fixedly extended on both sides of the inner layer. The opening of the side pocket forms a middle elongated hole, and a middle zipper 20 that closes the middle elongated hole is fixed on the side pocket. The inner zipper is a #10 nylon reinforced zipper, and the outer zipper 3 is a #15 nylon reinforced zipper. The use of these two nylon reinforced zippers distributes most of the stress on the middle zipper 20, thereby increasing its sealing performance and reducing tensile stress. The middle zipper 20 is a #10 rubber-toothed airtight zipper to further enhance airtightness.

[0018] In this embodiment, the key properties of the soft capsule 1 are airtightness, high strength, low elongation, softness, lightweight, and weather resistance. Polyurethane fabric is preferably used as the main capsule material. The soft capsule 1 is made of high-strength 0.9mm thick double-sided polyurethane composite material, manufactured using high-frequency pressing technology. The inner seams of the soft capsule 1 are bonded using an adhesive coating process.

[0019] In this embodiment, a rigid pressurization port is fixed to the soft capsule 1. The rigid pressurization port has a pressurization port and a pressurization interface 4 is fixedly connected to the pressurization port. The pressurization interface 4 can be connected to an external pressurization device to pressurize the inside of the soft capsule 1.

[0020] In this embodiment, a rigid decompression chamber seat is fixed to the soft capsule 1. The rigid decompression chamber seat has a decompression port, and a decompression interface 5 is fixedly connected to the decompression port. The decompression interface 5 can be externally connected to a decompression switch valve, and the decompression switch valve can be opened to decompress the contents of the soft capsule 1.

[0021] In this embodiment, a rigid pressure-measuring port is fixed on the soft capsule 1. The rigid pressure-measuring port has a pressure measuring port and a pressure measuring interface 6 is fixedly connected to the pressure measuring port. The pressure measuring interface 6 can be connected to an external barometer to monitor the air pressure inside the soft capsule 1.

[0022] In this embodiment, a rigid oxygen supply port is fixed to the soft capsule 1. The rigid oxygen supply port has an oxygen supply outlet and an oxygen supply interface 7 is fixedly connected to the oxygen supply outlet. The oxygen supply interface 7 can be connected to an external oxygen supply device containing an oxygen supply cylinder to supply oxygen to the soft capsule 1.

[0023] In this embodiment, a rigid oxygen venting port is fixed to the soft capsule 1. The rigid oxygen venting port has an oxygen venting port and an oxygen venting interface 8 is fixedly connected to the oxygen venting port. The oxygen venting interface 8 can be externally connected to an oxygen venting switch valve, which is opened to vent oxygen from the soft capsule 1.

[0024] In this embodiment, a rigid gas sampling port is fixed to the soft capsule 1. The rigid gas sampling port has a gas sampling port and a gas sampling interface 9 is fixed to the gas sampling port. The gas sampling interface 9 can be connected to an external gas analyzer to detect the concentration of various gases inside the soft capsule 1, preventing abnormal oxygen and carbon dioxide concentrations inside the capsule from endangering the safety of personnel inside.

[0025] In this embodiment, a rigid air outlet perforation seat is fixed to the soft capsule 1. The rigid air outlet perforation seat has a recirculation air outlet, and a recirculation air outlet interface 10 is fixedly connected to the recirculation air outlet. A rigid air inlet perforation seat is also fixed to the soft capsule 1. A recirculation air inlet is provided on the rigid air inlet perforation seat, and a recirculation air inlet interface 11 is fixedly connected to the recirculation air outlet interface 10 and the recirculation air inlet interface 11. An external carbon dioxide absorption device can be connected between the recirculation air outlet interface 10 and the recirculation air inlet interface 11. This carbon dioxide absorption device is used to absorb and eliminate carbon dioxide in the gas inside the soft capsule 1, preventing abnormal carbon dioxide concentration inside the capsule from endangering the safety of the personnel inside.

[0026] In this embodiment, a rigid communication through-cabin seat is fixed to the soft capsule 1. The rigid communication through-cabin seat has an intercom port, and an intercom interface 12 is fixedly connected to the intercom port. The intercom interface 12 can be connected to external communication equipment to realize communication between the inside and outside of the cabin.

[0027] In this embodiment, a rigid safety penetration seat is fixed on the soft capsule 1. The rigid safety penetration seat has an exhaust port and a safety valve 13 is provided on the exhaust port. The safety valve 13 plays a role in protecting the safety inside the capsule.

[0028] In this embodiment, the soft capsule 1 is placed inside the pressure-bearing binding assembly 2. When the soft capsule 1 is under high pressure, the pressure-bearing binding assembly 2 completely binds the outer wall of the soft capsule 1. The pressurization port 4, depressurization port 5, pressure measuring port 6, oxygen supply port 7, oxygen exhaust port 8, gas sampling port 9, circulating air outlet port 10, circulating air inlet port 11, intercom port 12, and safety valve 13 are exposed outside the pressure-bearing binding assembly 2. The pressurization port 4, depressurization port 5, pressure measuring port 6, oxygen supply port 7, oxygen exhaust port 8, gas sampling port 9, circulating air outlet port 10, and circulating air inlet port 11 all use quick-connect connectors, and the intercom port 12 uses an aviation connector.

[0029] In this embodiment, the pressure-bearing binding assembly 2 includes a left rigid mounting ring 14 and a right rigid mounting ring 15, both made of stainless steel. Multiple long straps 16 are evenly spaced along the circumference between the left and right rigid mounting rings 14 and 15. Annular straps 17 are evenly spaced along the length of each of these long straps 16. All annular straps 17, except those at the left and right ends, are connected by buckles 18 to form a complete ring. A soft base 19 is attached to the bottom of each of the long straps 16 and annular straps 17. The long straps 16 and annular straps 17 are interwoven to form a cylindrical mesh structure.

[0030] Moreover, when the pressure-bearing binding assembly 2 completely binds the outer wall of the soft bladder 1, the left rigid mounting ring 14 is tightly attached to the left side of the soft bladder 1, the right rigid mounting ring 15 is tightly attached to the right side of the soft bladder 1, and each buckle 18 is located directly above the outer zipper 3.

[0031] This invention designs a portable, flexible pressurized chamber with external circulation, comprising a polyurethane flexible bladder 1 and a densely packed nylon pressure-bearing binding assembly 2. The combination of these two components solves the airtightness problem of the pressurized chamber while simultaneously meeting the pressure-bearing requirements of the flexible bladder 1. Therefore, the pressurized chamber has good foldability and low weight. Furthermore, three zippers on the chamber allow for rapid entry and exit of personnel and enhance the airtightness of the chamber. The flexible bladder 1 is equipped with a pressurization interface 4, a depressurization interface 5, a pressure measurement interface 6, an oxygen supply interface 7, an oxygen exhaust interface 8, a gas sampling interface 9, a recirculation exhaust interface 10, a recirculation intake interface 11, and an intercom interface 12. During use, quick-connect couplings allow for rapid connection of each component to the chamber, enabling immediate operational readiness.

[0032] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A portable, soft-sided pressurized chamber with external circulation, characterized in that, It includes a soft capsule and a pressure-bearing binding assembly. The soft capsule includes a foldable soft bladder with a separate inner layer and an outer layer. The inner layer has an inner elongated hole and an inner zipper that closes the inner elongated hole. The outer layer has an outer elongated hole and an outer zipper that closes the outer elongated hole. Foldable side pockets extend from both sides of the inner layer, with the openings of the side pockets forming a middle elongated hole. A middle zipper that closes the middle elongated hole is fixed to the side pocket. A rigid pressurization perforation seat is fixed to the soft capsule. The rigid pressurization perforation seat has a pressurization port and a pressurization interface fixedly connected to the pressurization port. A rigid decompression perforation seat is fixed to the soft capsule. The rigid decompression perforation seat has a decompression port and a decompression interface fixedly connected to the decompression port. A rigid pressure measuring perforation seat is fixed to the soft capsule. The rigid pressure measuring perforation seat has a pressure measuring port and a pressure measuring interface fixedly connected to the pressure measuring port. A rigid oxygen supply perforation seat is fixed to the soft capsule. The rigid oxygen supply perforation seat has an oxygen supply port and an oxygen supply interface fixedly connected to the oxygen supply port. A rigid oxygen exhaust perforation seat is fixed to the soft capsule. The rigid oxygen exhaust perforation seat has an oxygen exhaust port and an oxygen exhaust interface fixedly connected to the oxygen exhaust port. The soft capsule is fixed with... A rigid gas sampling perforation chamber is provided, wherein a gas sampling port is provided on the rigid gas sampling perforation chamber and a gas sampling interface is fixedly connected to the gas sampling port; a rigid gas outlet perforation chamber is fixed on the soft bladder, wherein a circulating gas outlet is provided on the rigid gas outlet and a circulating gas interface is fixedly connected to the circulating gas outlet; a rigid air inlet perforation chamber is fixed on the soft bladder, wherein a circulating air inlet is provided on the rigid air inlet and a circulating air interface is fixedly connected to the circulating air inlet; a rigid communication perforation chamber is fixed on the rigid communication perforation chamber, wherein an intercom port is provided on the rigid communication perforation chamber and an intercom interface is fixedly connected to the intercom port; and a rigid safety perforation chamber is fixed on the soft bladder, wherein an exhaust port is provided on the rigid safety perforation chamber and a safety valve is provided on the exhaust port; The soft capsule is placed inside the pressure-bearing binding assembly. When the soft capsule is under high pressure, the pressure-bearing binding assembly completely binds the outer wall of the soft capsule. The pressurization port, depressurization port, pressure measurement port, oxygen supply port, oxygen exhaust port, gas sampling port, circulating air outlet port, circulating air inlet port, and intercom port are exposed outside the pressure-bearing binding assembly. The inner and outer zippers are nylon-reinforced zippers, and the middle zipper is a rubber-toothed airtight zipper.

2. The portable soft pressurized chamber with external circulation as described in claim 1, characterized in that, The pressure-bearing binding assembly includes a left rigid mounting ring and a right rigid mounting ring. Multiple long straps are evenly spaced between the left and right rigid mounting rings along the circumferential direction. Annular straps are evenly spaced along the length of these long straps. Buckles are installed on these annular straps and they are interlocked to form a complete ring. The annular straps and long straps are interwoven to form a cylindrical mesh structure. When the pressure-bearing binding assembly is fully bound to the outer wall of the soft bladder, the left rigid mounting ring is tightly attached to the left side of the soft bladder, the right rigid mounting ring is tightly attached to the right side of the soft bladder, and each of the buckles is located directly above the zipper.

3. The portable soft pressurized chamber with external circulation as described in claim 2, characterized in that, All of these loop straps, except for those located at the left and right ends, are connected by buckles to form a complete loop.

4. The portable soft pressurized chamber with external circulation as described in claim 2, characterized in that, These long straps and loop straps are fitted with a soft base at the bottom.

5. The portable soft pressurized chamber with external circulation as described in claim 2, characterized in that, Both the left and right rigid mounting rings are made of metal.

6. The portable soft pressurized chamber with external circulation as described in claim 1, characterized in that, The soft capsule is a polyurethane soft capsule.

7. The portable soft pressurized chamber with external circulation as described in claim 1, characterized in that, The pressurization interface, depressurization interface, pressure measurement interface, oxygen supply interface, oxygen exhaust interface, gas sampling interface, circulating air outlet interface, and circulating air inlet interface all use quick-connect connectors, and the intercom interface uses an aviation connector.

Citation Information

Patent Citations

  • Soft air pressurization cabin for rescue

    CN218636267U

  • Hyperbaric chamber

    US20080006272A1