CN220676248U - Medical dressing and antibacterial composite substrate thereof - Google Patents
Medical dressing and antibacterial composite substrate thereof Download PDFInfo
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- CN220676248U CN220676248U CN202321727401.8U CN202321727401U CN220676248U CN 220676248 U CN220676248 U CN 220676248U CN 202321727401 U CN202321727401 U CN 202321727401U CN 220676248 U CN220676248 U CN 220676248U
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- antibacterial
- layer
- dressing
- breathable film
- waterproof breathable
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- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 92
- 239000002131 composite material Substances 0.000 title claims abstract description 40
- 239000000758 substrate Substances 0.000 title claims abstract description 31
- 239000004744 fabric Substances 0.000 claims abstract description 64
- 239000000835 fiber Substances 0.000 claims abstract description 21
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 20
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 20
- 241001330002 Bambuseae Species 0.000 claims abstract description 20
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 20
- 239000011425 bamboo Substances 0.000 claims abstract description 20
- 229920000728 polyester Polymers 0.000 claims abstract description 17
- 229920002334 Spandex Polymers 0.000 claims description 8
- 239000002121 nanofiber Substances 0.000 claims description 8
- 239000004759 spandex Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 230000000845 anti-microbial effect Effects 0.000 claims description 6
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 239000000661 sodium alginate Substances 0.000 claims description 5
- 235000010413 sodium alginate Nutrition 0.000 claims description 5
- 229940005550 sodium alginate Drugs 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000004599 antimicrobial Substances 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000010521 absorption reaction Methods 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 7
- 241000894006 Bacteria Species 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000009545 invasion Effects 0.000 abstract description 4
- 238000009423 ventilation Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 71
- 206010052428 Wound Diseases 0.000 description 15
- 208000027418 Wounds and injury Diseases 0.000 description 15
- 230000035699 permeability Effects 0.000 description 7
- 230000029663 wound healing Effects 0.000 description 6
- 210000000416 exudates and transudate Anatomy 0.000 description 4
- 230000002439 hemostatic effect Effects 0.000 description 4
- 239000000017 hydrogel Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 230000035876 healing Effects 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000001523 electrospinning Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 208000035143 Bacterial infection Diseases 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 206010063560 Excessive granulation tissue Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 239000004826 Synthetic adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940030225 antihemorrhagics Drugs 0.000 description 1
- 208000022362 bacterial infectious disease Diseases 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 230000023597 hemostasis Effects 0.000 description 1
- 239000002874 hemostatic agent Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000000416 hydrocolloid Substances 0.000 description 1
- 229920003063 hydroxymethyl cellulose Polymers 0.000 description 1
- 229940031574 hydroxymethyl cellulose Drugs 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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Landscapes
- Materials For Medical Uses (AREA)
Abstract
The utility model discloses a medical dressing and an antibacterial composite substrate thereof, wherein the antibacterial composite substrate is used for the medical dressing and comprises a waterproof breathable film, an antibacterial fabric layer and a dressing layer which are sequentially and tightly overlapped from top to bottom, and the dressing layer is used for contacting a wound surface part of a human body; the antibacterial fabric layer is of a grid fabric structure and is woven by bamboo/polyester fiber blended yarn. According to the design, the antibacterial composite substrate is formed by compositing the antibacterial fabric layer on the waterproof breathable film, on one hand, the antibacterial fabric layer is woven by the bamboo/polyester fiber blended yarn, and the bamboo/polyester fiber blended yarn has good moisture absorption and moisture conductivity, so that the excellent performances of natural antibacterial performance, moisture absorption, ventilation, smoothness and the like of the bamboo fiber are maintained. By adopting the combination of the waterproof breathable film and the antibacterial fabric layer, the permeation of external liquid water can be prevented, the transmission of water vapor is realized, the invasion of bacteria is blocked, and a certain antibacterial effect is achieved.
Description
Technical Field
The utility model relates to a medical dressing, in particular to a medical dressing and an antibacterial composite substrate thereof.
Background
The traditional medical dressing such as medical absorbent cotton gauze has the advantages of easily available raw materials, simple and convenient manufacturing process, low price, soft texture, strong moisture absorption capability and certain protection effect on skin healing. However, after the traditional dressing absorbs moisture, exudates diffuse along the fabric, so that the fabric is hard to harden, healthy skin tissues around the wound surface are affected, skin healing is not facilitated, meanwhile, new granulation tissues are easy to adhere when the dressing is replaced, pain is caused, secondary damage is caused, barrier function is poor after the dressing is permeated, and bacterial infection is easy to occur. For this reason, new medical dressings are continually being developed.
The Chinese patent publication No. CN215779148U discloses a hemostatic and antibacterial medical dressing, which comprises a hemostatic layer, an antibacterial layer and a backing layer, wherein a hemostatic agent containing silicon dioxide microspheres is adsorbed in the hemostatic layer, an antibacterial agent containing nano silver ions is adsorbed in the antibacterial layer, and the hemostatic layer, the antibacterial layer and the backing layer are sequentially bonded into a whole through a silicone adhesive.
The prior art adopts polyurethane non-woven fabrics as a backing layer, and adopts medical dressing that polyurethane non-woven fabrics and antibacterial layer are constituteed, and though has certain antibacterial effect, the backing layer of prior art can't separate the infiltration of liquid water at all, has the problem that waterproof performance is poor, and waterproof function can isolate vapor and dust, and the infection that the external liquid that contains a large amount of bacteria contacted the surface of a wound causes of isolation.
Disclosure of Invention
In order to overcome the technical defects, the utility model provides a medical dressing and an antibacterial composite substrate thereof.
In order to solve the problems, the utility model is realized according to the following technical scheme:
in a first aspect, the utility model provides an antibacterial composite substrate, which is used for medical dressing, and comprises a waterproof breathable film, an antibacterial fabric layer and a dressing layer which are tightly overlapped in sequence from top to bottom, wherein the dressing layer is used for contacting a wound surface part of a human body;
the antibacterial fabric layer is of a grid fabric structure and is woven from bamboo/polyester fiber blended yarns.
Preferably, the antibacterial fabric layer is made of core spun yarn, the core spun yarn comprises spandex filaments serving as yarn cores and bamboo/polyester fiber blended yarns wrapping the peripheral surfaces of the spandex filaments, and the linear density of the core spun yarn is 5.8tex.
Preferably, the outer contour shape of the antibacterial fabric layer is matched with the outer contour shape of the waterproof breathable film;
the outer contour of the dressing layer is much smaller than that of the waterproof breathable film.
Preferably, the waterproof breathable film is a polyethylene film having a plurality of microporous structures.
Preferably, the dressing layer is made of polyvinyl alcohol/sodium alginate nanofibers.
Preferably, the dressing layer is made of a hydrogel dressing.
In a second aspect, the utility model also provides a medical dressing, which comprises the antibacterial composite substrate according to the first aspect, and further comprises release paper, wherein the release paper is attached to the waterproof breathable film, and the antibacterial fabric layer and the dressing layer are both positioned between the antibacterial composite substrate and the release paper.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides an antibacterial composite substrate which is used for medical dressing, wherein the antibacterial composite substrate comprises a waterproof breathable film, an antibacterial fabric layer and a dressing layer which are sequentially and tightly overlapped from top to bottom, and the dressing layer is used for contacting a wound surface part of a human body; the antibacterial fabric layer is of a grid fabric structure and is woven by bamboo/polyester fiber blended yarn.
According to the design, the antibacterial composite substrate is formed by compositing the antibacterial fabric layer on the waterproof breathable film, on one hand, the antibacterial fabric layer is woven by the bamboo/polyester fiber blended yarn, and the bamboo/polyester fiber blended yarn has good moisture absorption and moisture conductivity, so that the excellent performances of natural antibacterial performance, moisture absorption, ventilation, smoothness and the like of the bamboo fiber are maintained. The application can prevent the infiltration of outside liquid water through adopting the combination of waterproof ventilated membrane and antibiotic precoat to realize the transmission of vapor, hinder the invasion of bacterium, and have certain antibacterial effect.
On the other hand, the antibacterial fabric layer is of a grid fabric structure and is a hollowed-out fabric with a large number of meshes, so that the problem of air permeability reduction caused by compounding the antibacterial fabric layer is greatly reduced, and the excellent air permeability and good air permeability of the antibacterial composite base material are maintained by the mesh/mesh structure; and the bamboo/polyester fiber blended yarn has good flexibility, and ensures the flexibility required by the use of the antibacterial composite substrate.
Drawings
The utility model is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic layer structure of an antibacterial composite substrate for a medical dressing according to the present utility model;
FIG. 2 is a schematic plan view of a circular antimicrobial composite substrate of the present utility model;
FIG. 3 is a schematic plan view of a square antimicrobial composite substrate of the present utility model;
in the figure:
10-a waterproof breathable film;
20-an antibacterial fabric layer; 30-dressing layer.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
As shown in fig. 1 to 3, a preferred structure of a medical dressing and an antibacterial composite substrate thereof according to the present utility model.
As shown in fig. 1, the antibacterial composite substrate is used for medical dressing, and comprises a waterproof breathable film 10, an antibacterial fabric layer 20 and a dressing layer 30 which are sequentially and tightly stacked from top to bottom, wherein the dressing layer is used for contacting a wound surface part of a human body; the antibacterial fabric layer is of a grid fabric structure and is woven from bamboo/polyester fiber blended yarns.
According to the antibacterial composite substrate, the antibacterial fabric layer is compounded on the waterproof breathable film, on one hand, the antibacterial fabric layer is woven by the bamboo/polyester fiber blended yarn, and the bamboo/polyester fiber blended yarn has good moisture absorption and moisture conductivity, so that the excellent performances of natural antibacterial performance, moisture absorption, ventilation, smoothness and the like of the bamboo fiber are maintained. The application can prevent the infiltration of outside liquid water through adopting the combination of waterproof ventilated membrane and antibiotic precoat to realize the transmission of vapor, hinder the invasion of bacterium.
On the other hand, the antibacterial fabric layer is of a grid fabric structure and is a hollowed-out fabric with a large number of meshes, so that the problem of air permeability reduction caused by compounding the antibacterial fabric layer is greatly reduced, and the excellent air permeability and good air permeability of the antibacterial composite base material are maintained by the mesh/mesh structure; and the bamboo/polyester fiber blended yarn has good flexibility, and ensures the flexibility required by the use of the antibacterial composite substrate.
In one implementation, when the antibacterial fabric layer is in a mesh fabric structure, the mesh size of the antibacterial fabric layer can be selectively determined according to the applied medical dressing, for example, when the medical dressing is used for a smaller wound surface, the surface area of the medical dressing is not large, and at this time, the mesh size of the antibacterial fabric layer can be set to be 1-5 mm.
In one embodiment, the antibacterial fabric layer may also be a mesh knitted fabric structure, and it is understood that the antibacterial fabric layer is a mesh fabric, preferably a single-layer mesh fabric with a larger mesh distribution density.
The antibacterial fabric layer is selected from a grid fabric structure or a mesh knitting fabric structure, so that the influence of the antibacterial composite base material on the air permeability is reduced. On the other hand, the antibacterial fabric layer is selected, and the mesh holes/meshes of the antibacterial fabric layer can expose the waterproof breathable film, so that the compounding of the waterproof breathable film and the dressing layer is reduced.
In one implementation, the outer contour shape of the antibacterial fabric layer is adapted to the outer contour shape of the waterproof breathable film; the outer contour of the dressing layer is much smaller than that of the waterproof breathable film.
Preferably, the outer contour shape of the antibacterial fabric layer is slightly smaller than the outer contour shape of the waterproof breathable film.
As shown in fig. 2 and 3, the antibacterial composite substrate has a circular or square shape, which is the most common shape of medical dressings. In another implementation, the antimicrobial composite substrate may be of any shape, and accordingly, the dressing layer may be of an equally reduced shape of the outer contour of the antimicrobial composite substrate.
In a specific implementation, the antibacterial fabric layer is made of core spun yarn, the core spun yarn comprises spandex filaments serving as yarn cores and bamboo/polyester fiber blended yarns wrapping the peripheral surfaces of the spandex filaments, and the linear density of the core spun yarn is 5.8tex.
The core-spun yarn takes spandex fiber as core yarn, and the core yarn wraps the bamboo/polyester fiber blended yarn in an elongation state, so that the core-spun yarn has better elasticity and antibacterial performance. The core-spun yarn formed by organically combining good elasticity of spandex and antibacterial performance of the bamboo/polyester fiber blended yarn endows the antibacterial composite base material and the medical dressing with good elasticity, strength and antibacterial performance.
The antibacterial composite substrate is characterized in that a layer of antibacterial fabric layer is compounded on the waterproof breathable film, on one hand, the antibacterial fabric layer is made of core spun yarns and is combined with the waterproof breathable film to endow the waterproof breathable film with good elasticity and strength, the problem that the waterproof breathable film is easy to deform after being pulled by stress is solved, the external force deformation resistance of the waterproof breathable film is improved, and the waterproof breathable film has the advantage that the activity of a user is not limited after the waterproof breathable film is used. On the other hand, the covering yarn has an antibacterial effect, the antibacterial fabric layer is endowed with antibacterial performance, and the antibacterial effect of the medical dressing in the storage or use process is improved.
In one implementation, the waterproof breathable film is a polyethylene film having a plurality of microporous structures.
In one implementation, the waterproof breathable film and the elastic fabric layer are pre-compounded, and the waterproof breathable film and the elastic fabric layer can be combined into a whole through hot pressing and the like. The elastic fabric layer can be completely wrapped by the waterproof breathable film, and can also be embedded and compounded on the waterproof breathable film, namely, a small part of the elastic fabric layer can be exposed on the surface of the waterproof breathable film.
In one implementation, the dressing layer is made of polyvinyl alcohol/sodium alginate nanofibers.
Wound healing is a complex process involving four overlapping stages of hemostasis, inflammation, proliferation and tissue remodeling. Wound dressings can be effective in promoting wound healing by preventing excessive loss of fluid, promoting epithelial remodeling, maintaining a moist healing environment, good adherence to the wound area, and allowing the patient to be comfortably removed. The high water content is to promote wound healing and improve comfort. The waterproof function can isolate water vapor and dust, and protect the wound from being infected by external liquid containing a large amount of bacteria, so that the use scene of the dressing in life is widened, and the limitation of the dressing is reduced. Therefore, an ideal medical dressing should have the ability to absorb and exclude large amounts of exudates, hinder bacterial invasion, and protect the wound from the external environment. Based on the requirements, the antibacterial composite substrate of the technology can prevent liquid water from penetrating, realize water vapor transmission, prevent bacteria invasion and have antibacterial effect. On the other hand, the polyvinyl alcohol/sodium alginate nanofiber pad is used as the composite medical dressing of the wound healing inner layer.
In one embodiment, the dressing layer is formed on the composite structure of the waterproof breathable film and the elastic fabric layer using an electrospinning technique. Electrospinning is a simple and effective processing technique that can produce nanofibers.
In a specific preparation process, glutaraldehyde can be used for crosslinking the polyvinyl alcohol/sodium alginate nanofiber mat. Glutaraldehyde is the most commonly used cross-linking agent in wound dressing applications and is used in varying concentrations to cross-link biopolymers to improve their mechanical properties. The crosslinked mixtures generally exhibit higher water stability and mechanical strength.
Through the technology, the antibacterial composite substrate meets the waterproof and vapor-permeable requirements and is beneficial to wound healing. The dressing layer is a nanofiber pad with a reticular structure, and the porous reticular structure is beneficial to cell respiration, does not dry the wound and promotes the wound to heal efficiently. And the net structure shows that the ratio of the surface area to the volume is high, so that the absorption rate of wound exudates is higher, and the net structure has good potential in promoting wound healing.
In another embodiment, the dressing layer is made of a hydrogel dressing. The hydrogel dressing is also called hydrocolloid dressing, and is made up by mixing elastic polymerized hydrogel with synthetic rubber and adhesive. The most common gel in dressings is hydroxymethyl cellulose, which adheres firmly to the wound edge skin and swells 12 times when absorbing exudates.
The utility model also provides a medical dressing, which comprises the antibacterial composite base material and release paper, wherein the release paper is attached to the waterproof breathable film, and the antibacterial fabric layer and the dressing layer are both positioned between the antibacterial composite base material and the release paper.
The present utility model is not limited to the preferred embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical principles of the present utility model are within the scope of the technical proposal of the present utility model.
Claims (3)
1. An antimicrobial composite substrate for use in a medical dressing, characterized in that:
the antibacterial composite base material comprises a waterproof breathable film, an antibacterial fabric layer and a dressing layer which are sequentially and tightly overlapped from top to bottom, wherein the dressing layer is used for contacting a wound surface part of a human body;
the antibacterial fabric layer is of a grid fabric structure and is made of core-spun yarns, wherein the core-spun yarns comprise spandex filaments serving as yarn cores and bamboo/polyester fiber blended yarns wrapping the peripheral surfaces of the spandex filaments, and the linear density of the core-spun yarns is 5.8tex;
the waterproof breathable film is a polyethylene film with a plurality of micropore structures;
the dressing layer is a nanofiber pad with a net structure, and the dressing layer is made of polyvinyl alcohol/sodium alginate nanofibers.
2. An antimicrobial composite substrate according to claim 1, wherein:
the outer contour shape of the antibacterial fabric layer is matched with the outer contour shape of the waterproof breathable film;
the outer contour of the dressing layer is much smaller than that of the waterproof breathable film.
3. A medical dressing, characterized in that the medical dressing comprises the antibacterial composite substrate according to claim 1 or 2, and further comprises release paper, wherein the release paper is attached to the waterproof breathable film, and the antibacterial fabric layer and the dressing layer are both positioned between the antibacterial composite substrate and the release paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321727401.8U CN220676248U (en) | 2023-07-04 | 2023-07-04 | Medical dressing and antibacterial composite substrate thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321727401.8U CN220676248U (en) | 2023-07-04 | 2023-07-04 | Medical dressing and antibacterial composite substrate thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220676248U true CN220676248U (en) | 2024-03-29 |
Family
ID=90405273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321727401.8U Active CN220676248U (en) | 2023-07-04 | 2023-07-04 | Medical dressing and antibacterial composite substrate thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220676248U (en) |
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2023
- 2023-07-04 CN CN202321727401.8U patent/CN220676248U/en active Active
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