Self-disinfection type wound dressing device

Abstract

The invention belongs to the technical field of wound dressing, and discloses an autonomous disinfection type wound dressing device which comprises a disinfection mechanism, and the disinfection mechanism comprises an absorption layer, a drainage groove, a disinfection layer, a storage groove, a release opening and a water-soluble capsule; through cooperation of structures such as a water-soluble capsule and a release opening, the absorption layer can be conveniently and autonomously disinfected, and penetrating fluid enables the water-soluble capsule in the disinfection layer to be gradually dissolved and broken to release silver ions in the water-soluble capsule, so that the silver ions fall onto the absorption layer through the release opening; the absorption layer and the wound are disinfected through the absorption holes in the absorption layer, the absorption holes are combined with sulfur-containing, phosphorus-containing and nitrogen-containing groups on the surfaces of bacteria to destroy the cell membrane structure of the bacteria, and meanwhile, silver ions can enter the bacteria to prevent the propagation of the bacteria, so that the number of the bacteria can be greatly reduced, and the risk of wound infection is reduced; a continuous antibacterial guarantee is provided for the wound healing process, and the problem of drug-resistant bacteria caused by excessive use of antibiotics is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of wound dressings, and in particular relates to a self-sterilizing wound dressing device. Background Art

[0002] Wound care is an important part of the medical field and is directly related to the patient's recovery process and quality of life. Wound dressings mainly play the role of covering, stopping bleeding and protecting wounds. However, during the wound healing process, the risk of infection is always a major problem. Bacteria, viruses and other pathogens can easily breed and multiply in the wound. Once an infection occurs, it will not only prolong the wound healing time, but may also cause the wound to worsen, form scars, and even cause systemic infection, endangering the patient's life and health. According to statistics, there are countless cases of increased medical expenses and increased patient suffering due to wound infection every year around the world. Infection is especially prominent in the treatment of chronic, difficult-to-heal wounds such as burns, large trauma areas, and diabetic foot.

[0003] Existing wound dressing devices often lack effective self-disinfection capabilities. During the wound healing process, it is difficult to continuously and effectively inhibit the bacteria that breed in the wound by relying solely on the physical barrier function of the dressing. In the existing technology, in order to prevent wound infection, antibiotics are commonly used in wound care. However, excessive use of antibiotics can easily lead to the production of drug-resistant bacteria and may also cause adverse consequences such as allergic reactions in patients. Therefore, a self-disinfecting wound dressing device is proposed. Summary of the Invention

[0004] In order to solve the problem raised in the above background technology that there is often a lack of effective autonomous disinfection ability, during the wound healing process, it is difficult to continuously and effectively inhibit the bacteria growing in the wound by relying solely on the physical barrier effect of the dressing. In the existing technology, in order to prevent wound infection, antibiotics are commonly used in wound care. However, excessive use of antibiotics can easily lead to the production of drug-resistant bacteria, and may also cause adverse consequences such as allergic reactions in patients. The present invention provides a self-disinfecting wound dressing device.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a self-sterilizing wound dressing device, comprising a main body and further comprising:

[0006] A disinfection mechanism, located inside the main body;

[0007] Among them, the disinfection mechanism includes an absorption layer, a drainage groove, a disinfection layer, a storage groove, a release port and a water-soluble capsule. The absorption layer is provided with a drainage groove for guiding the discharge of wound exudate. The top of the absorption layer is provided with a disinfection layer for disinfection. Several storage grooves are evenly provided on the disinfection layer. Water-soluble capsules are provided inside the storage groove. The inner wall of the storage groove is provided with a release port for releasing silver ions.

[0008] Preferably, a plurality of absorption holes are evenly provided on the absorption layer, a skin-friendly layer is provided at the bottom of the absorption layer, and an extrusion layer is provided on the top of the disinfection layer.

[0009] Preferably, the material of the water-soluble capsule is a water-soluble material, silver ions are arranged inside the water-soluble capsule, the material of the absorption layer is cotton fiber, the material of the skin-friendly layer is silicone material, the absorption hole and the drainage groove are communicated, and a plurality of storage grooves are evenly opened at the bottom of the extrusion layer. The water-soluble capsule is located between the disinfection layer and the extrusion layer, the bottom of the extrusion layer is a smooth surface, and the release port passes through the disinfection layer.

[0010] Preferably, the main body structure includes an adhesive layer, the top of the adhesive layer is fixedly connected to a waterproof breathable membrane, a groove is provided on the waterproof breathable membrane, and a sealing groove is provided on the top of the waterproof breathable membrane.

[0011] Preferably, the bottom of the adhesive layer is adhesive, the top of the adhesive layer is a waterproof and breathable material, the skin-friendly layer is fixedly connected to the inner wall of the adhesive layer, the bottom of the skin-friendly layer is located below the adhesive layer, and the absorption layer and the disinfection layer are both fixedly connected to the inner wall of the waterproof and breathable membrane.

[0012] Preferably, a feeding mechanism is provided above the main body mechanism, and the feeding mechanism comprises a top film, a pasting head is fixedly connected to the top film, and a sealing ring is fixedly connected to the bottom of the top film.

[0013] Preferably, the pasting head is located on the side of the sealing ring, the extrusion layer is fixedly connected to the inner wall of the top membrane, and the end of the top membrane away from the pasting head is fixedly connected to the top of the waterproof and breathable membrane.

[0014] Preferably, the bottom of the top membrane is bonded to the top of the waterproof breathable membrane, the sealing ring is clamped to the sealing groove, and the pasting head is bonded to the groove.

[0015] Preferably, a discharge mechanism is provided on the side of the main body mechanism, and the discharge mechanism includes an air pump, a connecting pipe is fixedly connected to the air pump, and an end of the connecting pipe away from the connecting head is fixedly connected to the connecting head.

[0016] Preferably, one end of the connector away from the connecting pipe passes through the sealing groove and the absorption hole and extends to the inside of the drainage groove, and the connecting pipe is located on a side of the waterproof and breathable membrane away from the groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention facilitates the autonomous disinfection of the absorption layer by providing a combination of structures such as water-soluble capsules and release ports. When the absorption layer is soaked with wound permeate, the permeate will penetrate into the disinfection layer, causing the water-soluble capsules in the disinfection layer to come into contact with water and gradually dissolve and rupture, releasing the silver ions inside them so that they fall onto the absorption layer through the release port, and disinfecting the absorption layer and the wound through the absorption holes on the absorption layer. The silver ions have broad-spectrum antibacterial properties and can interact with bacterial cell membranes, cell walls, proteins, and DNA. When the silver ions come into contact with the bacteria, they will combine with sulfur-containing, phosphorus-containing, and nitrogen-containing groups on the surface of the bacteria, destroying the bacterial cell membrane structure and causing the cell contents to leak. At the same time, the silver ions can also enter the bacteria, combine with the bacterial DNA, inhibit DNA replication and transcription, thereby preventing bacterial reproduction, which can greatly reduce the number of bacteria and reduce the risk of wound infection. This provides continuous antibacterial protection for the wound healing process, avoids the problem of drug-resistant bacteria caused by excessive use of antibiotics, and also reduces potential risks such as allergic reactions that may be caused by antibiotics, thereby improving the safety and effectiveness of wound care.

[0019] The present invention facilitates the replenishment of water-soluble capsules by providing the cooperation of structures such as the pasting head and the top film. The pasting head is regularly opened to drive the extrusion layer to open. At this time, the water-soluble capsules and silver ions in the original disinfection layer may be gradually exhausted over time and use. Subsequently, a number of water-soluble capsules are poured into the disinfection layer, and the top film is gradually attached to the top of the disinfection layer from the end away from the pasting head. The water-soluble capsules that are not inside the storage tank are squeezed and pushed by the smooth surface of the bottom of the extrusion layer, so that they move toward the storage tank and enter the storage tank. When the end of the top film close to the pasting head is attached and bonded to the top of the waterproof and breathable film, the excess water-soluble capsules on the disinfection layer will be squeezed out. Regular replenishment of the water-soluble capsules can ensure that the silver ions continue to exert their antibacterial effect, continuously inhibit the growth and reproduction of bacteria, always provide a relatively sterile healing environment for the wound, prevent the recurrence of wound infection or the occurrence of new infection, and at the same time avoid the discomfort and pulling of the wound caused to the patient by frequent dressing changes, and avoid the risk of secondary infection during the replacement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the main structure of the present invention when viewed from above;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the main mechanism of the present invention;

[0023] Figure 4 For the present invention Figure 3 A in the middle is an enlarged structural diagram;

[0024] Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0025] Figure 6 Schematic diagram of the cross-sectional structure of the disinfection mechanism of the present invention;

[0026] Figure 7 For the present invention Figure 6 The enlarged structural diagram at C in the middle;

[0027] Figure 8 This is a schematic diagram of the structure of the discharge mechanism of the present invention when viewed from above;

[0028] Figure 9 It is a schematic diagram of the explosion structure of the disinfection mechanism of the present invention.

[0029] In the figure: 1. Disinfection mechanism; 101. Skin-friendly layer; 102. Absorption layer; 103. Absorption hole; 104. Drainage groove; 105. Disinfection layer; 106. Storage groove; 107. Release port; 108. Water-soluble capsule; 109. Extrusion layer; 2. Main body mechanism; 201. Adhesive layer; 202. Waterproof and breathable membrane; 203. Groove; 204. Sealing groove; 3. Feeding mechanism; 301. Top membrane; 302. Adhesive head; 303. Sealing ring; 4. Discharge mechanism; 401. Connecting head; 402. Connecting pipe; 403. Air pump. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] like Figures 1 to 9 As shown, the present invention provides a self-sterilizing wound dressing device, comprising a main body 2, and further comprising:

[0032] The disinfection mechanism 1 is located inside the main body 2;

[0033] Among them, the disinfection mechanism 1 includes an absorption layer 102, a drainage groove 104, a disinfection layer 105, a storage groove 106, a release port 107 and a water-soluble capsule 108. The absorption layer 102 is provided with a drainage groove 104 for guiding the discharge of wound exudate. The top of the absorption layer 102 is provided with a disinfection layer 105 for disinfection. Several storage grooves 106 are evenly provided on the disinfection layer 105. Water-soluble capsules 108 are provided inside the storage groove 106. The inner wall of the storage groove 106 is provided with a release port 107 for releasing silver ions. Several absorption holes 103 are evenly provided on the absorption layer 102. A skin-friendly layer 101 is provided at the bottom of the absorption layer 102, and an extrusion layer 109 is provided on the top of the disinfection layer 105.

[0034] The material of the water-soluble capsule 108 is water-soluble material, and silver ions are arranged inside the water-soluble capsule 108. The material of the absorption layer 102 is cotton fiber, and the material of the skin-friendly layer 101 is silicone material. The absorption hole 103 is connected to the drainage groove 104. A number of storage grooves 106 are evenly opened at the bottom of the extrusion layer 109. The water-soluble capsule 108 is located between the disinfection layer 105 and the extrusion layer 109. The bottom of the extrusion layer 109 is a smooth surface, and the release port 107 penetrates the disinfection layer 105.

[0035] The main body 2 includes an adhesive layer 201 , a waterproof breathable membrane 202 is fixedly connected to the top of the adhesive layer 201 , a groove 203 is provided on the waterproof breathable membrane 202 , and a sealing groove 204 is provided on the top of the waterproof breathable membrane 202 .

[0036] The above scheme is adopted: by setting the cooperation of the water-soluble capsule 108 and the release port 107 and other structures, it is convenient to disinfect the absorption layer 102 autonomously. When the absorption layer 102 is soaked with the wound penetrant, the penetrant will penetrate into the disinfection layer 105, so that the water-soluble capsule 108 in the disinfection layer 105 will gradually dissolve and rupture when it encounters water, releasing the silver ions inside so that it falls onto the absorption layer 102 through the release port 107, and disinfects the absorption layer and the wound through the absorption holes 103 on the absorption layer 102. The silver ions have broad-spectrum antibacterial properties and can bind to the cell membrane, cell wall, protein and DNA of bacteria. When silver ions come into contact with bacteria, they will combine with the sulfur-containing, phosphorus-containing and nitrogen-containing groups on the surface of the bacteria, destroying the bacterial cell membrane structure and causing the leakage of cell contents. At the same time, silver ions can enter the bacteria and combine with the bacterial DNA to inhibit DNA replication and transcription, thereby preventing bacterial reproduction. It can greatly reduce the number of bacteria and the risk of wound infection, provide continuous antibacterial protection for the wound healing process, avoid the problem of drug-resistant bacteria caused by excessive use of antibiotics, and also reduce potential risks such as allergic reactions caused by antibiotics, thereby improving the safety and effectiveness of wound care.

[0037] like Figures 3 to 8As shown, the bottom of the adhesive layer 201 can be pasted, the top of the adhesive layer 201 is a waterproof and breathable material, the skin-friendly layer 101 is fixedly connected to the inner wall of the adhesive layer 201, the bottom of the skin-friendly layer 101 is located below the adhesive layer 201, and the absorption layer 102 and the disinfection layer 105 are both fixedly connected to the inner wall of the waterproof and breathable membrane 202.

[0038] A feeding mechanism 3 is provided above the main body mechanism 2, and the feeding mechanism 3 includes a top membrane 301, a pasting head 302 is fixedly connected to the top membrane 301, a sealing ring 303 is fixedly connected to the bottom of the top membrane 301, the pasting head 302 is located on the side of the sealing ring 303, the extrusion layer 109 is fixedly connected to the inner wall of the top membrane 301, the end of the top membrane 301 away from the pasting head 302 is fixedly connected to the top of the waterproof and breathable membrane 202, the bottom of the top membrane 301 is bonded to the top of the waterproof and breathable membrane 202, the sealing ring 303 is clamped to the sealing groove 204, and the pasting head 302 is bonded to the groove 203.

[0039] A discharge mechanism 4 is provided on the side of the main body mechanism 2, and the discharge mechanism 4 includes an air pump 403, and a connecting pipe 402 is fixedly connected to the air pump 403, and the end of the connecting pipe 402 away from the connecting head 401 is fixedly connected to the connecting head 401, and the end of the connecting head 401 away from the connecting pipe 402 passes through the sealing groove 204 and the absorption hole 103 and extends to the interior of the drainage groove 104, and the connecting pipe 402 is located on the side of the waterproof and breathable membrane 202 away from the groove 203.

[0040] The above scheme is adopted: by setting the cooperation of the structures such as the pasting head 302 and the top film 301, it is convenient to replenish the water-soluble capsules 108, and the pasting head 302 is periodically opened to allow the top film 301 to drive the extrusion layer 109 to open. At this time, the water-soluble capsules 108 and silver ions in the original disinfection layer 105 may be gradually exhausted over time and use. Subsequently, a number of water-soluble capsules 108 are poured into the disinfection layer 105, and the top film 301 is moved from the end away from the pasting head 302 so that the bottom of the extrusion layer 109 gradually fits the top of the disinfection layer 105, and the water-soluble capsules that are not inside the storage tank 106 are squeezed and pushed through the smooth surface of the bottom of the extrusion layer 109. 108, so that it moves toward the storage tank 106 and enters the storage tank 106. When the top film 301 is close to one end of the pasting head 302 and adheres to the top of the waterproof and breathable membrane 202, the excess water-soluble capsules 108 on the disinfection layer 105 will be squeezed out. Regularly replenishing the water-soluble capsules can ensure that the silver ions continue to play an antibacterial role, continue to inhibit the growth and reproduction of bacteria, always provide a relatively sterile healing environment for the wound, prevent the recurrence of wound infection or the occurrence of new infection, and avoid the discomfort caused to the patient by frequent dressing changes and the pulling of the wound, and avoid the risk of secondary infection during the replacement process.

[0041] The working principle and usage process of the present invention are as follows: First, clean the skin around the wound with mild physiological saline or a suitable wound cleansing solution. Be gentle when cleaning to avoid irritating the wound. Use a sterile cotton ball or gauze dipped in the cleaning solution and wipe from the wound edge to the periphery to remove dirt, grease and bacteria on the skin surface. If there is a lot of hair around the wound, it may affect the adhesion of the dressing. The hair can be trimmed appropriately, but care should be taken to avoid damaging the skin.

[0042] After pre-treating the skin and wound, align the skin-friendly layer 101 of the device with the wound and gently cover it to ensure that the wound is completely covered. Adjust the position of the dressing according to the location and shape of the wound, aligning its center with the center of the wound. At the same time, make sure that the dressing fits smoothly on the wound surface, avoiding wrinkles or bubbles that would affect the contact between the wound and the dressing and the performance of the dressing. Then, place the adhesive layer 201 tightly against the skin.

[0043] When the wound exudate from the wound is small, the wound exudate contains a variety of growth factors, cytokines, proteins and other components. These substances can form a moist environment on the wound surface. A moderately moist environment is conducive to promoting the migration of keratinocytes, thereby accelerating the wound healing process. This part of the wound exudate will be absorbed and stored by the skin-friendly layer 101. When the wound exudate exceeds a certain amount, it will pass through the skin-friendly layer 101 and be absorbed by the absorption layer 102, avoiding the situation where the humidity between the skin-friendly layer 101 and the wound is too high to damage the barrier function of the skin, making the skin more susceptible to invasion by external bacteria. At the same time, the extracellular matrix of the wound in a long-term moist environment is easily diluted, which is not conducive to the interaction between cells and the repair and reconstruction of tissues.

[0044] When the absorption layer 102 is soaked with wound exudate, the exudate will penetrate into the disinfection layer 105, causing the water-soluble capsules 108 in the disinfection layer 105 to come into contact with water and gradually dissolve and rupture, releasing the silver ions inside so that they fall onto the absorption layer 102 through the release port 107 and disinfect the absorption layer and the wound through the absorption holes 103 on the absorption layer 102. The silver ions have broad-spectrum antibacterial properties and can interact with bacterial cell membranes, cell walls, proteins, and DNA, inhibiting DNA replication and transcription, thereby preventing bacterial reproduction. In addition, the patient can use the air pump 403 to generate negative pressure at the connector 401, so that the excess exudate in the absorption layer 102 and the generated silver compounds can be discharged from the connector 401 through the drainage groove 104.

[0045] At the same time, the patient can periodically uncover the pasting head 302 to allow the top film 301 to drive the extrusion layer 109 to open. At this time, the water-soluble capsules 108 in the disinfection layer 105 have been completely dissolved. Then, a number of water-soluble capsules 108 are poured into the disinfection layer 105, and the top film 301 is moved from the end away from the pasting head 302 so that the bottom of the extrusion layer 109 gradually fits the top of the disinfection layer 105. The smooth surface of the bottom of the extrusion layer 109 squeezes and pushes the water-soluble capsules 108 that are not inside the storage groove 106, so that they move toward the storage groove 106 and enter the storage groove 106. When the end of the top film 301 close to the pasting head 302 is adhered and bonded to the top of the waterproof and breathable membrane 202, the excess water-soluble capsules 108 on the disinfection layer 105 will be squeezed out. At this time, the sealing ring 303 is clamped with the sealing groove 204, and finally the pasting head 302 is bonded to the groove 203.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A self-sterilizing wound dressing device, comprising a main body (2), characterized in that: Also includes: A disinfection mechanism (1), wherein the disinfection mechanism (1) is located inside the main body mechanism (2); The disinfection mechanism (1) comprises an absorption layer (102), a drainage groove (104), a disinfection layer (105), a storage groove (106), a release port (107) and a water-soluble capsule (108); the absorption layer (102) is provided with a drainage groove (104) for guiding the discharge of wound exudate; the top of the absorption layer (102) is provided with a disinfection layer (105) for disinfection; a plurality of storage grooves (106) are evenly provided on the disinfection layer (105); the storage grooves (106) are provided with water-soluble capsules (108); and the inner wall of the storage grooves (106) is provided with a release port (107) for releasing silver ions.

2. The self-sterilizing wound dressing device according to claim 1, characterized in that: A plurality of absorption holes (103) are evenly provided on the absorption layer (102), a skin-friendly layer (101) is provided at the bottom of the absorption layer (102), and an extrusion layer (109) is provided on the top of the disinfection layer (105).

3. The self-sterilizing wound dressing device according to claim 2, characterized in that: The water-soluble capsule (108) is made of a water-soluble material, and silver ions are arranged inside the water-soluble capsule (108). The absorption layer (102) is made of cotton fiber, and the skin-friendly layer (101) is made of silicone material. The absorption hole (103) is connected to the drainage groove (104). A plurality of storage grooves (106) are evenly opened at the bottom of the extrusion layer (109). The water-soluble capsule (108) is located between the disinfection layer (105) and the extrusion layer (109). The bottom of the extrusion layer (109) is a smooth surface, and the release port (107) penetrates the disinfection layer (105).

4. The self-sterilizing wound dressing device according to claim 2, characterized in that: The main body structure (2) comprises an adhesive layer (201), the top of the adhesive layer (201) is fixedly connected to a waterproof breathable membrane (202), a groove (203) is provided on the waterproof breathable membrane (202), and a sealing groove (204) is provided on the top of the waterproof breathable membrane (202).

5. The self-sterilizing wound dressing device according to claim 4, characterized in that: The bottom of the adhesive layer (201) is adhesive, the top of the adhesive layer (201) is made of a waterproof and breathable material, the skin-friendly layer (101) is fixedly connected to the inner wall of the adhesive layer (201), the bottom of the skin-friendly layer (101) is located below the adhesive layer (201), and the absorption layer (102) and the disinfection layer (105) are both fixedly connected to the inner wall of the waterproof and breathable membrane (202).

6. The self-sterilizing wound dressing device according to claim 4, characterized in that: A feeding mechanism (3) is provided above the main body mechanism (2), and the feeding mechanism (3) comprises a top film (301), a pasting head (302) is fixedly connected to the top film (301), and a sealing ring (303) is fixedly connected to the bottom of the top film (301).

7. The self-sterilizing wound dressing device according to claim 6, characterized in that: The pasting head (302) is located on the side of the sealing ring (303), the extrusion layer (109) is fixedly connected to the inner wall of the top film (301), and the end of the top film (301) away from the pasting head (302) is fixedly connected to the top of the waterproof and breathable membrane (202).

8. The self-sterilizing wound dressing device according to claim 6, characterized in that: The bottom of the top film (301) is bonded to the top of the waterproof breathable film (202), the sealing ring (303) is clamped to the sealing groove (204), and the pasting head (302) is bonded to the groove (203).

9. The self-sterilizing wound dressing device according to claim 6, characterized in that: A discharge mechanism (4) is provided on the side of the main body mechanism (2), and the discharge mechanism (4) comprises an air pump (403). A connecting pipe (402) is fixedly connected to the air pump (403), and an end of the connecting pipe (402) away from the connecting head (401) is fixedly connected to the connecting head (401).

10. The self-sterilizing wound dressing device according to claim 9, characterized in that: One end of the connector (401) away from the connecting pipe (402) passes through the sealing groove (204) and the absorption hole (103) and extends to the inside of the drainage groove (104). The connecting pipe (402) is located on the side of the waterproof breathable membrane (202) away from the groove (203).

Images