A chest seal patch
By designing a chest sealing patch with a gel layer and a soft membrane structure, the problem of unreliable fixation during emergency treatment was solved, achieving convenient operation and stable gas exchange, relieving pneumothorax symptoms, and improving emergency treatment efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- EMSRUN GROUP
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-21
AI Technical Summary
Existing first aid methods are not secure enough for penetrating injuries to the chest wall, are prone to falling off, are complicated to operate, and cannot effectively prevent air from entering or exiting the chest cavity, thus affecting respiratory function.
A chest sealing patch comprising a gel layer and a soft membrane was designed. The gel layer is adhesive and airtight, with tiny pores in the hollowed-out area. The soft membrane adsorbs the wound under pressure differential, prevents external gas from entering during inhalation, and allows gas to escape through the pores during exhalation. The protective membrane facilitates installation and protects the adhesive portion.
It improves the stability of the sealing tape, reduces detachment, simplifies the operation process, ensures smooth gas exchange, effectively relieves pneumothorax symptoms, and buys valuable time for emergency treatment.
Smart Images

Figure CN224523414U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a chest cavity sealing patch. Background Technology
[0002] In cases of penetrating chest wall injuries, the human pleural cavity is normally under negative pressure, with the lungs full and well-filled. However, when the pleural cavity is connected to the outside, air enters through the wound, disrupting the negative pressure environment and causing lung tissue to collapse, making it impossible to maintain normal respiratory function. Patients are prone to suffocation and shock due to severe hypoxia, directly endangering their lives. Therefore, open pneumothorax is an extremely dangerous condition. In emergencies, rescuers should prioritize "rapid containment," using readily available materials to close the wound as quickly as possible, transforming an open pneumothorax into a closed one. Then, apply pressure bandages and transport the patient to a well-equipped hospital for further treatment.
[0003] One common first aid method is to cover the wound with a clean plastic bag or cling film at the end of the patient's deep exhalation, then cover it with a thicker dressing such as gauze, a mask, or a small towel, and then wrap a 20-centimeter-wide triangular bandage around the chest to completely cover the dressing. However, this method is not secure and is prone to falling off, and the operation is complicated. Utility Model Content
[0004] The purpose of this invention is to provide a chest sealing patch that can improve stability, reduce detachment, and facilitate convenient operation during emergency use.
[0005] To achieve the above objectives, this utility model provides a chest cavity sealing patch, including a gel layer with a thickness of 3-5 mm, which is adhesive and airtight. The gel layer has a hollow area with multiple small through holes, and the soft membrane outside the small through holes is a single membrane structure.
[0006] A protective film is detachably disposed on one side of the gel layer;
[0007] The soft membrane is disposed on the side of the gel layer away from the protective membrane.
[0008] The number of the tiny through holes is four.
[0009] When the patient inhales, the soft membrane is adhered to the wound due to the pressure difference, thus preventing external air from entering the pleural cavity.
[0010] When the patient exhales, the soft membrane is pushed up by the air overflowing from the wound in the chest cavity, and the air is discharged through the multiple tiny openings.
[0011] The gel layer may be a silica gel layer.
[0012] The gel layer may also be either an aqueous gel layer or a hydrogel layer.
[0013] The protective film is provided with a tearing part, which can be rectangular or semi-circular.
[0014] The surface of the tearing part is provided with a 0.05mm thick anti-slip layer.
[0015] This utility model discloses a chest sealing patch. In use, first peel off the protective film, then adhere the adhesive gel side of the gel layer to the patient's chest. At this point, the perforated area on the gel layer is aligned with the wound. Subsequently, during the patient's inhalation and exhalation, the movement of the soft membrane and the cooperation of multiple tiny pores prevent external air from entering and allow air from the chest cavity to escape. Furthermore, when installing it on the patient's wound, simply peel off the protective film and then adhere the adhesive gel side of the gel layer to the patient's chest. This makes operation more convenient, improves stability during emergency use, reduces the risk of detachment, and facilitates easy operation. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0017] Figure 1 This is a schematic diagram of the overall structure of the chest cavity sealing patch of this utility model.
[0018] Figure 2 This is a schematic diagram of the structure of the gel layer in this utility model.
[0019] Figure 3 This is a schematic diagram of the state of the soft membrane of this utility model when the patient inhales.
[0020] Figure 4 This is a schematic diagram of the patient's exhalation state of the soft membrane of this utility model.
[0021] Figure 5 This is a schematic diagram showing the location of the sealing layer in this utility model.
[0022] Figure 6 This is a schematic diagram of the structure of the air column of this utility model.
[0023] In the diagram: 101-gel layer, 102-perforated area, 103-small through holes, 104-soft film, 105-protective film, 106-tearable part, 107-anti-slip layer, 108-sealing layer, 109-air column. Detailed Implementation
[0024] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0025] like Figures 1 to 6 As shown, where Figure 1 This is a schematic diagram of the overall structure of the chest cavity sealing patch. Figure 2 This is a schematic diagram of the structure of gel layer 101. Figure 3 This is a schematic diagram showing the state of the diaphragm 104 during patient inhalation. Figure 4 This is a diagram illustrating the state of a patient with 104-inch diaphragm during exhalation. Figure 5 This is a schematic diagram showing the location of the sealing layer 108. Figure 6 This is a schematic diagram of the air column 109. This utility model provides a chest sealing patch: comprising a gel layer 101, a protective film 105, and a soft film 104. The gel layer 101 is 3-5 mm thick, adhesive, and airtight. A perforated area 102 is provided on the gel layer 101, and multiple small through-holes 103 are provided within the perforated area 102. The soft film 104 outside the small through-holes 103 is a single sheet of film. This design improves stability during emergency use, reduces detachment, and facilitates convenient operation. It is understood that this design improves the stability of the sealing patch during emergency use and enables convenient operation.
[0026] In this embodiment, the gel layer 101 has a thickness of 3-5 mm, is adhesive, and is airtight. The thickness can be adjusted as needed during actual installation. The gel layer 101 has a perforated area 102, with multiple small through-holes 103 within the perforated area 102. The soft membrane 104 outside the small through-holes 103 is a single sheet of membrane. The gel layer 101, through its adhesive portion, facilitates easy adhesion and fixation of the sealing patch to the patient's wound skin. Its adhesive portion can be directly protected after installation by the protective film 105. For subsequent use, the protective film 105 can be simply peeled off. The perforated area 102, after the sealing patch is attached to the outside of the patient's wound, can be aligned with the wound area. Multiple small through-holes 103 are provided within the inner hole of the perforated area 102, and these small through-holes 103 are located on the soft membrane 104. A sealing layer 108 is provided at the edge of the connection between the gel layer 101 and the soft membrane 104. The shape and structure of the sealing layer 108 are designed according to the matching edge structure of the gel layer 101 and the soft membrane 104 to improve the sealing performance of the edges of the gel layer 101 and the soft membrane 104, thereby preventing air from passing through the gap between the edges of the gel layer 101 and the soft membrane 104 when the patient inhales or exhales.
[0027] The protective film 105 is detachably disposed on one side of the gel layer 101; the protective film 105 is used to protect the adhesive portion on the gel layer 101, and when subsequent bonding and fixing are required, the protective film 105 can be directly peeled off.
[0028] The soft membrane 104 is disposed on the side of the gel layer 101 away from the protective membrane 105. The soft membrane 104 is used to coordinate air intake and exhaust during the patient's inhalation and exhalation, and the soft membrane 104 can undergo corresponding deformation states to cooperate during the patient's inhalation and exhalation.
[0029] Preferably, the number of the fine through holes 103 is four.
[0030] Preferably, when the patient inhales, the soft membrane 104 is adsorbed onto the wound due to the pressure difference, simultaneously preventing external gas from entering the pleural cavity. After the sealing patch is fixed to the patient's outer wound surface skin through the adhesive portion on the gel layer 101, when the patient inhales, the soft membrane 104 can be directly adsorbed onto the patient's wound due to the pressure difference, simultaneously preventing external gas from entering the pleural cavity.
[0031] Preferably, when the patient exhales, air in the pleural cavity overflows from the wound, causing the pleural membrane 104 to be lifted, and the air is discharged through the multiple tiny openings 103. When the patient exhales, air overflows from the wound in the pleural cavity, lifting the pleural membrane 104, and simultaneously, the air is discharged from the body through the four tiny openings 103 on the pleural membrane 104, thereby effectively relieving pneumothorax symptoms.
[0032] Preferably, the gel layer 101 may be a silicone gel layer.
[0033] Preferably, the gel layer 101 can also be either an aqueous adhesive layer or a hydrogel layer. The hydrogel layer provides good adhesion and biocompatibility, ensuring the sealant adheres firmly to the skin while reducing skin irritation. Therefore, the gel layer 101 of this invention is preferably a hydrogel layer.
[0034] Preferably, the protective film 105 is provided with a tearing portion 106, which may be rectangular or semi-circular. The tearing portion 106 facilitates tearing off the protective film 105.
[0035] Preferably, the surface of the tearing part 106 is provided with a 0.05mm thick anti-slip layer 107. The anti-slip layer 107 has an interlaced mesh-like protrusion structure, which facilitates the tearing part 106 to be peeled off. At the same time, air columns 109 can also be provided on the surface of the tearing part 106 to assist in tearing and replace the anti-slip layer 107. The air columns 109 are arranged in a split and spaced manner. When arranged in a straight line, they can also form an anti-slip structure that is easy to tear. The thickness of the air columns 109 can be set to various thicknesses according to the actual situation, and its beveled part and arc part are a continuous structure.
[0036] When using this invention to improve stability, reduce detachment, and facilitate convenient operation during emergency use, the first step is to peel the protective film 105 off the gel layer 101 using the tearing part 106. At this point, the adhesive portion of the gel layer 101 is exposed. The protective film 105 is then bonded to the adhesive portion of the gel layer 101 under sterile conditions. After bonding, the inner and outer sides are isolated to ensure a seal with the surface in contact with the body, guaranteeing sterility. Then, the sticky gel surface of the gel layer 101 is... When the sealant is applied to the patient's chest, the perforated area 102 on the gel layer 101 is aligned with the wound. After the sealant is fixed to the outer surface of the wound skin through the adhesive portion on the gel layer 101, when the patient inhales, due to the pressure difference, the soft membrane 104 can be directly adsorbed onto the patient's wound, simultaneously preventing external gas from entering the chest cavity. When the patient exhales, the gas in the chest cavity overflows from the wound, pushing up the soft membrane 104, and the gas is discharged from the body through the four tiny pores 103 on the soft membrane 104. Figure 4 The arrow in the diagram indicates the direction of gas expulsion, effectively alleviating pneumothorax symptoms. When installing this sealing patch on a patient's wound, simply peel off the protective film 105 and then adhere the adhesive gel surface of the gel layer 101 to the patient's chest. This makes the operation more convenient and allows for rapid installation on the patient's chest cavity surface, saving valuable time for emergency treatment. Finally, the gel layer 101 is preferably a hydrogel layer to ensure good adhesion and biocompatibility, ensuring the sealing patch adheres firmly to the skin while reducing skin irritation. This improves stability during emergency use, reduces detachment, and facilitates convenient operation.
[0037] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A chest cavity sealing patch, characterized in that, The chest cavity sealing patch includes: The gel layer has a thickness of 3-5 mm, is viscous, and is airtight. The gel layer has a hollow area with multiple small through holes. The soft membrane outside the small through holes is a single membrane structure. A protective film is detachably disposed on one side of the gel layer; The soft membrane is disposed on the side of the gel layer away from the protective membrane.
2. The chest cavity sealing patch as described in claim 1, characterized in that: The number of tiny through holes is four.
3. The chest cavity sealing patch as described in claim 1, characterized in that: When the patient inhales, the soft membrane is adhered to the wound due to the pressure difference, simultaneously preventing external air from entering the pleural cavity.
4. The chest cavity sealing patch as described in claim 1, characterized in that: When the patient exhales, gas in the chest cavity overflows from the wound, the soft membrane is pushed up, and the gas is discharged through the multiple tiny openings.
5. The chest cavity sealing patch as described in claim 1, characterized in that... : The gel layer may be a silica gel layer.
6. The chest cavity sealing patch as described in claim 5, characterized in that: The gel layer can also be either an aqueous colloid layer or a hydrogel layer.
7. The chest cavity sealing patch as described in claim 1, characterized in that: The protective film is provided with a tearing part, which can be rectangular or semi-circular.
8. The chest cavity sealing patch as described in claim 7, characterized in that: The surface of the tearing part is provided with a 0.05mm thick anti-slip layer.