CN216319103U

CN216319103U - Sodium alginate and PDRN composite biological dressing

Info

Publication number: CN216319103U
Application number: CN202123155235.2U
Authority: CN
Inventors: 姬胜利; 郭凯; 吕文娇
Original assignee: Reali Tide Biological Technology Weihai Co ltd
Current assignee: Reali Tide Biological Technology Weihai Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-04-19
Anticipated expiration: 2031-12-15

Abstract

The utility model discloses a sodium alginate and PDRN composite biological dressing, which belongs to the technical field of medical dressings, and has the technical scheme that the dressing comprises a non-woven fabric, wherein the non-woven fabric is made of sodium alginate fiber, a cavity is formed in the non-woven fabric, a PDRN coating layer is arranged in the cavity, the PDRN coating layer is wrapped by the non-woven fabric, then the dressing is applied to the injured part of a patient, the non-woven fabric is made of sodium alginate fiber, the sodium alginate fiber non-woven fabric has high liquid absorption, quick hemostasis and high moisture retention, so that the dressing can provide a good moist environment for the wound of the patient, the wound healing is effectively promoted, meanwhile, a bioactive substance PDRN is coated by arranging the PDRN coating layer, the healing promoting capacity of the dressing can be obviously enhanced, the dressing has the functions of resisting bacteria, resisting inflammation and preventing scars, and the non-woven fabric and the PDRN coating layer are arranged, the dressing has improved properties and improved therapeutic effect.

Description

Sodium alginate and PDRN composite biological dressing

Technical Field

The utility model relates to the technical field of medical dressings, in particular to a sodium alginate and PDRN composite biological dressing.

Background

In trauma and surgical operations, the wound can be kept dry, an optimal environment is provided for the healing of the wound, the wound can be healed early, and the traditional treatment mode mainly uses a gauze dressing to nurse the wound.

However, the existing medical dressing has no moisturizing effect when in use, so that a good moist environment cannot be provided for the wound, and the wound is slow to heal; and the existing medical dressing does not have the functions of resisting bacteria and inflammation and preventing scars.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides a sodium alginate and PDRN composite biological dressing to solve the problems.

The utility model discloses a sodium alginate and PDRN composite biological dressing which comprises a non-woven fabric, wherein the non-woven fabric is made of sodium alginate fiber materials, a cavity is formed in the non-woven fabric, and a PDRN coating layer is arranged in the cavity.

In order to promote the healing speed of the wound of a patient, the sodium alginate and PDRN composite biological dressing is preferably used, the PDRN coating layer is a bioactive substance extracted from salmon or salmon spermary, and the molecular weight of the PDRN coating layer is 30-1000 kDa.

In order to facilitate the dressing to be fixed on a wound of a patient, the sodium alginate and PDRN composite biological dressing is preferably used, the outer side wall of the non-woven fabric is fixedly connected with a breathable layer, and the lower end surface of the breathable layer is bonded with an adhesive layer.

In order to facilitate the dressing to be torn off when the dressing is replaced, the sodium alginate and PDRN composite biological dressing is preferably used, the lower end face of the breathable layer is fixedly connected with a plurality of uniformly distributed raised strips, and the lower end faces of the raised strips penetrate through the adhesive layer and are adhered to the adhesive layer.

In order to improve the air permeability of the air-permeable layer, the preferable sodium alginate and PDRN composite biological dressing of the utility model is that the upper end surface of the air-permeable layer is perforated with a plurality of uniformly distributed micropores.

In order to prevent the coating from scratching patients, the sodium alginate and PDRN composite biological dressing is preferably characterized in that the cross sections of the convex strips are in an arc shape.

Compared with the prior art, the utility model has the beneficial effects that:

this kind of compound biological dressing of sodium alginate and PDRN, wrap up PDRN coating layer through the non-woven fabrics, then apply this dressing in patient affected area, the non-woven fabrics adopts sodium alginate fibre material to make, sodium alginate fibre non-woven fabrics has high imbibition nature, quick hemostasis nature and high moisture retention, and then make this dressing can provide good moist environment for patient's wound, effectively promote wound healing, simultaneously through the setting on PDRN coating layer, coating bioactive substance PDRN, can show the ability of promoting healing that strengthens the dressing, and make the dressing possess antibiotic, the function that anti-inflammatory and prevention scar produced, thereby set up through non-woven fabrics and PDRN coating layer, impel each item performance of this dressing to obtain improving, increase the treatment of dressing.

Drawings

FIG. 1 is a structural diagram of a sodium alginate and PDRN composite biological dressing of the utility model;

FIG. 2 is a view showing a structure of a rib and an adhesive layer according to the present invention;

fig. 3 is a cross-sectional view of a sodium alginate and PDRN composite biological dressing of the present invention.

In the figure, 1, non-woven fabric; 101. a cavity; 2. a PDRN coating layer; 3. a breathable layer; 301. micropores; 302. A convex strip; 4. and (7) sticking the layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-3, a composite biological dressing of sodium alginate and PDRN comprises a non-woven fabric 1, wherein the non-woven fabric 1 is made of sodium alginate fiber, a cavity 101 is formed in the non-woven fabric 1, and a PDRN coating layer 2 is formed in the cavity 101.

In this embodiment: wrap up PDRN 2 in the coating through non-woven fabrics 1, then apply this dressing in patient affected area, non-woven fabrics 1 adopts the sodium alginate fibre material to make, sodium alginate fibre non-woven fabrics 1 has high imbibition nature, quick hemostasis nature and high moisture retention, and then make this dressing can provide good humid environment for patient's wound, effectively promote wound healing, simultaneously through the setting of PDRN coating 2, coating bioactive substance PDRN, can show the ability of promoting healing that strengthens the dressing, and make the dressing possess antibiotic, the function that anti-inflammatory and prevention scar produced, thereby through non-woven fabrics 1 and PDRN coating 2's setting, make each item performance of this dressing obtain improving, increase the treatment of dressing.

As a technical optimization scheme of the utility model, the PDRN coating layer 2 is a bioactive substance extracted from salmon or salmon testis, and the molecular weight of the PDRN coating layer 2 is 30-1000 kDa.

In this embodiment: the PDRN coating layer 2 is a bioactive substance extracted from the spermary of the salmon or the salmon, the molecular weight of the PDRN coating layer 2 is 30-1000kDa, the PRDN and the human DNA have a similarity of nearly 95%, and then the healing promotion effect of the dressing is obviously enhanced.

As a technical optimization scheme of the utility model, the outer side wall of the non-woven fabric 1 is fixedly connected with a breathable layer 3, and the lower end surface of the breathable layer 3 is bonded with an adhesive layer 4.

In this embodiment: paste layer 4 through the lower terminal surface setting on ventilative layer 3, and then be convenient for fix this dressing in patient's wound, improve the practicality of this dressing.

As a technical optimization scheme of the present invention, a plurality of uniformly distributed convex strips 302 are fixedly connected to the lower end surface of the air permeable layer 3, and the lower end surfaces of the convex strips 302 all penetrate through the adhesive layer 4 and are all adhered to the adhesive layer 4.

In this embodiment: through setting up sand grip 302, and then reduce the area of contact who pastes layer 4 and patient's skin, the patient of being convenient for tears this dressing.

As a technical optimization scheme of the present invention, a plurality of micropores 301 uniformly distributed are formed through the upper end surface of the air permeable layer 3.

In this embodiment: through setting up micropore 301, increase ventilative layer 3's ventilation effect, effectively avoid the ventilative problem that influences wound healing speed of dressing.

As a technical optimization scheme of the present invention, the cross sections of the plurality of convex strips 302 are all in an arc shape.

In this embodiment: the cross section of the convex strip 302 is arc-shaped, so that the convex strip 302 can prevent the skin of the patient from being scratched.

The working principle and the using process of the utility model are as follows: during the use, wrap up PDRN 2 parcel in the coating through non-woven fabrics 1, then use under the ventilative layer 3 terminal surface paste layer 4 with this dressing and paste in patient wound, at this moment, the lower terminal surface and the contact of patient skin of sand grip 302, reduce the area of contact who pastes layer 4 and patient skin, tear the dressing when being convenient for change, through setting up non-woven fabrics 1, provide good moist environment for patient's wound, effectively promote wound healing, and simultaneously, through the promotion healing ability of PDRN coating 2 reinforcing dressings, and make the dressing possess antibiotic, the function that anti-inflammatory and prevention scar produced, and under micropore 301's effect, increase the gas permeability of this dressing, further increase wound healing effect.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a compound biological dressing of sodium alginate and PDRN, its characterized in that, includes non-woven fabrics (1), non-woven fabrics (1) adopt sodium alginate fibre material to make, the inside of non-woven fabrics (1) is provided with cavity (101), the inside of cavity (101) is provided with PDRN scribbles layer (2).

2. The sodium alginate and PDRN composite biological dressing as claimed in claim 1, wherein: the PDRN coating layer (2) is a bioactive substance extracted from salmon or salmon testis, and the molecular weight of the PDRN coating layer (2) is 30-1000 kDa.

3. The sodium alginate and PDRN composite biological dressing as claimed in claim 1, wherein: the outer side wall of the non-woven fabric (1) is fixedly connected with a breathable layer (3), and a sticking layer (4) is bonded on the lower end face of the breathable layer (3).

4. The sodium alginate and PDRN composite biological dressing as claimed in claim 3, wherein: the lower terminal surface fixedly connected with a plurality of evenly distributed's of ventilative layer (3) sand grip (302), it is a plurality of the lower terminal surface of sand grip (302) all runs through and pastes layer (4), and all bonds with pasting layer (4).

5. The sodium alginate and PDRN composite biological dressing as claimed in claim 3, wherein: the upper end surface of the breathable layer (3) is provided with a plurality of uniformly distributed micropores (301) in a penetrating way.

6. The sodium alginate and PDRN composite biological dressing as claimed in claim 4, wherein: the cross sections of the convex strips (302) are all arc-shaped.