TWI747687B - Medical dressing structure for wound treatment in a post-surgery - Google Patents

Abstract

A medical dressing structure for wound treatment in a post-surgery is disclosed. The medical dressing structure includes a dressing assembly which is a composite flake for the fitting the human wound area. The dressing assembly comprises an outer layer and a composite dressing layer substantially the same as that of the outer profile of the outer layer, and the outer layer and composite dressing layer are stacked on top of each other. The dressing assembly has an inner edge side, an outer edge side, and two bottom edge sides. The inner edge side is an arc edge with a first radian and a first curvature radius, the outer edge side is an arc edge with a second radian and a second curvature radius, and the bottom edges are extended from the outer edge to connect the inner edge, which is an arc edge with a third radian and a third curvature radius respectively; wherein the inner edge and the outer edge are arced edges formed to the same center, the first radian and the second radian have a value of between π and 3π/2 and the second radian is greater than or equal to the first radian, and the value of the third radian is depending on the first radian, and of love and the second gave three ratios, the second curvature radius is greater than the third curvature radius and the third curvature radius is greater than the first curvature radius.

Description

Dressing structure for postoperative wounds

The invention relates to a technical field of medical equipment, in particular to a special dressing structure for fixing drainage tubes after medical operations.

Drainage tubes are often used after orthopedics and surgical operations to drain the deep effusion of the wound, thereby reducing subcutaneous or deep hematoma and reducing the risk of infection. In addition, after debridement of an infected wound, a drainage tube must also be placed to continuously drain the infectious tissue fluid. The traditional way to fix the drainage tube is to pass a needle with a thread through the skin, and then tie the drainage tube with a binding thread. However, the thread passing through the skin is easy to pull and cause discomfort. The thread passing through the skin is also prone to local inflammation and swelling due to pulling or bacterial infection.

In view of this, the inventor, in view of the shortcomings in the conventional technology, after careful experimentation and research, and a spirit of perseverance, finally conceived the present invention to overcome the above-mentioned problems.

The purpose of the present invention is to propose a dressing structure for postoperative wounds. Through the special structure of the dressing component and the fixing method of the drainage tube, the traditional method of fixing the drainage tube is improved. The method is based on the problem that the needle belt thread passes through the skin and is easy to pull and cause discomfort. It also improves the inconvenience of the wound dressing in the use of conventional technology by medical personnel and many other problems.

In order to achieve the objective of the present invention, the present invention provides a dressing structure for postoperative wounds, which includes: a drainage tube and a dressing component; the two ends of the drainage tube are respectively connected with a puncture needle tube and a negative pressure generating source; the dressing component is used In order to fit a composite sheet body in the wound area of the human body, the dressing assembly includes an outer sealing layer and a composite dressing layer with the same appearance and contour, and the outer sealing layer and the composite dressing layer are overlapped in alignment with each other, The geometric structure of the dressing component has an inner edge side, an outer edge side and two bottom edge sides. The inner edge side is an arc edge with a first curvature and a first radius of curvature; the outer edge side The sides are arc sides with a second degree of curvature and a second radius of curvature; the bottom side sides respectively extend from the outer side side and connect to the inner side side, and each bottom side side has a third The arc edge of the elasticity and a third radius of curvature; wherein the inner edge side and the outer edge side of the dressing component are arcs formed by the same center, and the first elasticity and the second elasticity are Between π~3π/2 and the second degree of curvature is greater than or equal to the first degree of curvature, the third degree of curvature is determined according to the first degree of curvature and the second degree of curvature, the second curvature The radius is greater than the third radius of curvature, and the third radius of curvature is greater than the first radius of curvature.

According to an embodiment of the present invention, the dressing component used to fit the wound area of the human body forms a maximum wound enclosing distance with a diameter of the center of the arc of the inner edge side in a horizontal axis, and the maximum wound enclosing The distance is between 0.3cm~10cm.

According to an embodiment of the present invention, the first radius of curvature is between 0.3 cm ^-1 and 10 cm ^-1 , and the second radius of curvature is between 0.5 cm ^-1 and 15 cm ^-1 .

According to an embodiment of the present invention, there is a specified ratio between the second radius of curvature and the first radius of curvature, and the specified ratio is between 1.2 and 5.0.

According to an embodiment of the present invention, the composite dressing layer is a single layer structure, and the composite dressing layer is selected from polyester, polyamide, polyethylene, polypropylene, polyvinyl alcohol, polyurethane, seaweed salt, acrylic, polyester, Any one or both of polyamide, polyethylene, polypropylene, polybutylene terephthalate, calcium alginate fiber, sodium carboxymethyl cellulose, water-soluble chitosan, and sodium polyacrylate The composite dressing layer has an overall thickness between 0.1 mm and 3 cm, and a large number of micropores are distributed on the surface and inside, and the diameter of the micropores is between 0.01 mm and 0.1 mm.

According to an embodiment of the present invention, the composite dressing layer is a two-layer stacked structure, the composite dressing layer includes a foam sponge layer and a film dressing layer, and the foam sponge layer is between the outer sealing layer and the film dressing layer. Meanwhile, the foam sponge layer is selected from polyester, polyamide, polyethylene, polypropylene, polyvinyl alcohol, polyurethane, seaweed salt, propylene, polyester, polyamide, polyethylene, polypropylene and polybutylene terephthalate. Any one of the aforementioned alcohol esters or a mixture of any two or more thereof is made, and the film dressing layer is selected from any one of the aforementioned calcium alginate fiber, sodium carboxymethyl cellulose, water-soluble chitosan, and sodium polyacrylate The composite dressing layer has a thickness of 0.1mm~3cm and a large number of micropores are distributed on the surface and inside. The diameter of the micropores is between 0.01mm~0.1mm. between.

According to an embodiment of the present invention, wherein the composite dressing layer and the outer sealing layer further comprise a filter layer and an absorption layer, and the outer sealing layer, the filter layer, the absorption layer and the composite dressing layer Stacked in sequence, the filter layer is a net-like structure of hydrophobic gauze and the grid spacing is at least 0.02mm or more. Any one of the foregoing or a mixture of any two or more are made.

According to an embodiment of the present invention, the outer sealing layer is a gas-permeable material layer, and the air permeability of the outer sealing layer is at least 1000 g/m ² per 24 hours.

According to an embodiment of the present invention, the outer seal layer further has a dressing release structure, and the dressing release structure is a thin flexible sheet arranged on the surface of the outer seal layer away from the composite dressing layer Body, so that medical staff can prevent the wound area of the human body from touching the human body when the dressing component is removed by externally applying force to the thin flexible sheet-shaped body.

10: Tie the wire

20: Dressing components

22: Inner edge side

24: outer edge side

26: bottom edge side

201: Outer Seal

202: composite dressing layer

220: Dressing release structure

rad1: the first degree

rad2: second degree

rad3: third degree

R1: first radius of curvature

R2: second radius of curvature

R3: third radius of curvature

Figure 1 is a three-dimensional schematic drawing of the dressing structure of the present invention.

Fig. 2 is a schematic diagram of the top surface of the dressing structure of the present invention.

The detailed description and technical content of the present invention are described as follows in conjunction with the drawings. However, the drawings are only provided for reference and explanation, and are not used to limit the present invention. Various embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments only. The present invention covers any alternatives, modifications, equivalent methods and schemes made on the essence and scope of the present invention. In order for the public to have a thorough understanding of the present invention, specific details are described in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.

In order to have a clearer understanding of the technical features, objectives and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The detailed description and technical content of the present invention are described as follows in conjunction with the drawings. However, the drawings are only provided for reference and description, and are not used to limit the creation; and the foregoing and other technical content, features and characteristics of the present invention achievement Effectiveness, in the following detailed description of each embodiment with reference to the drawings, it will be clearly presented, the direction terms mentioned in the following embodiments, for example: "up", "down", "left", "right", "Front", "Back", etc., are just for reference to the directions of the attached icons. Therefore, the directional terms used are used to illustrate, but not to limit the creation; furthermore, in the following embodiments, the same or similar elements will use the same or similar element numbers.

Please refer to Figures 1-2, which respectively draw the three-dimensional schematic diagram and the top schematic diagram of the dressing structure of the present invention. The present invention provides a dressing structure for postoperative wounds, which mainly includes a binding thread 10 and a dressing component 20. The binding thread 10 is used to pass through the dressing component 20 to sew the dressing component 20 to the postoperative wound. Position; The dressing component 20 is mainly a composite sheet body used to fit the human wound area (not shown). The overall contour design of the composite sheet body and the multi-layer composite structure composition design are the technical features of the present invention. The following will give a detailed description of each implementation mode.

In this embodiment, the dressing component 20 mainly includes an outer sealing layer 201 and a composite dressing layer 202 with the same outer shape. The outer sealing layer 201 and the composite dressing layer 202 are aligned and overlapped with each other. To further illustrate, the outer sealing layer 201 and the composite dressing layer 202 are aligned and connected to each other; the geometric structure of the dressing assembly 20 basically includes: an inner edge side 22, an outer edge side 24, and two The bottom edge side 26. The inner side 22 is an arc with a first curvature rad1 and a first radius of curvature R1; the outer side 24 is an arc with a second curvature rad2 and a second radius of curvature R2 ; Two bottom edge sides 26 are respectively extended from the outer edge side 24 to connect the inner edge side 22, and each of the bottom edge side 26 has a third radius rad3 and a third radius of curvature R3 The arc edge.

In this embodiment, the inner edge 22 and the outer edge 24 of the dressing assembly 20 are arcs formed by the same center, and the first elasticity rad1 and the second elasticity rad2 are between π~3π/2, and the second degree rad2 is greater than or equal to the first degree rad1, and the third degree rad3 is based on the first degree rad1 and the second degree rad2 Decided that the second song The radius of curvature R2 is greater than the third radius of curvature R3, and the third radius of curvature R3 is greater than the first radius of curvature R1. To further illustrate, the inner edge side 22 constitutes an arc with the first degree of rad1 for attaching the dressing assembly 20 to a human wound, the arc surround is attached and does not seal the wound area of the human body for surgery It is easy for personnel to handle wounds.

According to an embodiment of the present invention, the arc side of the inner edge side 22 of the dressing assembly 20 forms a maximum wound enclosing distance based on the two end points of its center in a horizontal axis. The maximum wound enclosing distance may be It is determined according to the size of the wound area of the human body. Preferably, the maximum wound enclosing distance is basically between 120% and 150% of the size of the human body wound.

According to an embodiment of the present invention, the first radius of curvature R1 is between 0.3 cm ^-1 and 10 cm ^-1 , and the second radius of curvature is between 0.5 cm ^-1 and 15 cm ^-1 .

According to an embodiment of the present invention, there is a designated ratio (R2/R1) between the second radius of curvature R2 and the first radius of curvature R1, and the designated ratio (R2/R1) is between 1.2 and 5.0.

Various implementation aspects of the dressing assembly 20 will be described below, mainly respectively illustrating the composition aspects of the composite dressing layer 202, and the composite dressing layer 202 needs to have multiple functions, such as high air permeability, good hydrophobicity, and low wound irritation. , No immune activity, promote wound healing and other functions.

According to an embodiment of the present invention, the composite dressing layer 202 is a single-layer structure, and the composite dressing layer 202 is selected from polyester, polyamide, polyethylene, polypropylene, polyvinyl alcohol, polyurethane, seaweed salt, propylene, poly Ester, polyamide, polyethylene, polypropylene, polybutylene terephthalate, calcium alginate fiber, sodium carboxymethyl cellulose, water-soluble chitosan, sodium polyacrylate, etc., any one or two of the foregoing A foam synthetic material layer made by mixing the above, the overall thickness of the composite dressing layer 202 is between 0.1 mm and 3 cm, and the surface and the inside of the composite dressing layer 202 are distributed with a large number of micropores, and the diameter of the micropores is between 0.01 mm and 0.1 mm between.

According to an embodiment of the present invention, the composite dressing layer (202) is a two-layer stacked structure, and the composite dressing layer 202 includes a foam sponge layer (not shown in the figure) and a film dressing layer (not shown in the figure), The foam sponge layer is between the outer sealing layer 201 and the film dressing layer. The foam sponge layer is selected from polyester, polyamide, polyethylene, polypropylene, polyvinyl alcohol, polyurethane, seaweed salt, acrylic, and polyester. , Polyamide, polyethylene, polypropylene, and polybutylene terephthalate, or a mixture of any two or more of them. The film dressing layer 202 is a polymer material layer made of calcium alginate fiber, sodium carboxymethyl cellulose, water-soluble chitosan, sodium polyacrylate, or a mixture of any two or more of the foregoing. The overall thickness of the composite dressing layer 202 is between 0.1 mm and 3.0 cm, and a large number of micropores are distributed on the surface and inside of the composite dressing layer 202, and the diameter of the micropores is between 0.01 mm and 0.1 mm.

Based on the above-mentioned film dressing layer made of a mixture of polymer materials, the specific implementation manners are as the following Examples A to D:

Example A: Dissolve sodium carboxymethyl cellulose, sodium polyacrylate, and water-soluble chitosan in deionized water at a weight ratio of 5:3:11 to prepare a water-soluble chitosan with a weight percentage of 5 % Of the spinning solution, treated by ultrasonic for about 1~2 hours, and adjusted the spinning voltage to 30kV, the spinning solution flow rate is 1ml/hr, and the collection tube is covered with calcium alginate fiber and the distance from the spinneret is 15cm Afterwards, the calcium alginate fibers are collected and spun to form the polymer material layer.

Example B: Sodium carboxymethyl cellulose, sodium polyacrylate, and water-soluble chitosan were dissolved in deionized water at a weight ratio of 4:2:3, and the weight percentage of water-soluble chitosan was 8 % Of the spinning solution is treated by ultrasonic for about 1 to 2 hours, and the spinning voltage is adjusted to 25kV, the spinning solution flow is 0.5ml/h, and the collection tube is covered with calcium alginate fibers and the distance from the spinneret is After 1cm, the calcium alginate fibers are collected and spun to form the polymer material layer.

Example C: Sodium carboxymethyl cellulose, sodium polyacrylate, and water-soluble chitosan were dissolved in deionized water at a weight ratio of 6:1:8, and the weight percentage of water-soluble chitosan was 3 % Of the spinning solution, through ultrasonic treatment for about 1 to 2 hours, and adjust the spinning voltage to 15kV, spinning dope flow rate is 2ml/h, calcium alginate fiber is covered on the collecting cylinder and the distance from the spinneret is 12cm, and then the calcium alginate fiber is collected and spun to become the polymer dressing layer.

Example D: Sodium carboxymethyl cellulose, sodium polyacrylate, and water-soluble chitosan were dissolved in deionized water at a weight ratio of 8:3:7, and the weight percentage of water-soluble chitosan was 10 % Of the spinning solution, treated by ultrasonic for about 1 to 2 hours, and adjust the spinning voltage to 20kV, the spinning solution flow rate to 1.5ml/h, and cover the collection tube with calcium alginate fibers and away from the spinning The head distance is 15cm, and then the calcium alginate fiber is collected and spun to become the polymer dressing layer.

According to an embodiment of the present invention, a filter layer and an absorption layer are further included between the composite dressing layer 202 and the outer sealing layer 201, and the outer sealing layer 201, the filter layer, the absorption layer and the The composite dressing layer 202 is stacked sequentially, the filter layer is a net-like structure of hydrophobic gauze and the grid spacing is at least 0.02mm, and the absorbent layer is made of fluff pulp of water-absorbent resin (SAP), polymer The composite water-absorbing material is made by mixing any one or two or more of the foregoing, so that the body wound exudate can react to form a jelly-like solid after reaching the absorbent layer.

According to an embodiment of the present invention, the outer sealing layer 201 is a waterproof and breathable material layer, and the air permeability of the outer sealing layer 201 is at least 1000 g/m ² per 24 hours. To further illustrate, the outer seal layer 201 is further provided with a dressing release structure 220, and the dressing release structure 220 is a thin flexible surface arranged on the surface of the outer seal layer (201) away from the composite dressing layer. The sheet-shaped body allows medical staff to apply external force to the thin flexible sheet-shaped body to prevent the dressing assembly 20 from touching the wound area of the human body when the dressing assembly 20 is removed.

To sum up, the dressing structure for postoperative wounds proposed by the present invention improves the traditional method of fixing drainage tubes. The problem of discomfort caused by the easy pulling of the needle belt thread through the skin, and the special shape structure can be effective The wound area of the human body is enclosed and a small area opening is formed, so that the medical personnel can conveniently observe the wound and the small area opening can prevent the wound exudate from spreading everywhere. On the other hand, for the patient, since it is attached to the healthy skin around the wound area, When the patch is removed, the wound area will not be damaged, nor will the patient feel pain. In addition, since it will not touch the wound area, it will not cause the patient's sultry sensation or itching sensation.

Although the preferred embodiment of the present invention is disclosed as above, it is not intended to limit the present invention. Anyone familiar with similar art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of patent protection shall be subject to the definition of the scope of patent application attached to this manual. However, the above specific embodiments are only used to illustrate the features and effects of the present invention, not to limit the scope of implementation of the present invention. Without departing from the spirit and technical scope of the present invention, any application of the present invention The equivalent changes and modifications of the disclosed content of the invention shall still be covered by the following patent application scope.

20: Dressing components

22: Inner edge side

24: outer edge side

26: bottom edge side

220: Dressing release structure

rad1: the first degree

rad2: second degree

rad3: third degree

R1: first radius of curvature

R2: second radius of curvature

R3: third radius of curvature

Claims (10)

A dressing structure for postoperative wounds, which includes: A dressing component, which is a composite sheet body used to fit the wound area of the human body, the dressing component includes an outer sealing layer and a composite dressing layer with the same outer shape, and the outer sealing layer is in the same system as the composite dressing layer They are aligned with each other and overlap each other, and the geometric structure of the dressing component has: An inner edge side, which is an arc edge having a first degree of curvature and a first radius of curvature; An outer edge side, which is an arc edge with a second curvature and a second radius of curvature; Two bottom edge sides, which respectively extend from the outer edge side edge and connect to the inner edge side edge, and each bottom edge side edge is an arc edge with a third degree of curvature and a third radius of curvature; Wherein the inner edge side and the outer edge side of the dressing component are arcs formed by the same center, the first degree and the second degree are between π~3π/2, and the first The second degree of curvature is greater than or equal to the first degree of curvature, the third degree of curvature is determined according to the first degree of curvature and the second degree of curvature, the second radius of curvature is greater than the third radius of curvature, and the third curvature The radius is greater than the first radius of curvature. For example, the dressing structure for postoperative wounds of claim 1, wherein the arc side of the inner edge side of the dressing component forms a maximum wound enclosing distance with two end points on a horizontal axis based on the center of the circle, and the maximum wound The surrounding distance is basically between 120% and 150% of the size of the human wound. Such as the dressing structure for postoperative wounds in claim 1, wherein the first radius of curvature is between 0.3 cm ^-1 ~ 10 cm ^-1 and the second radius of curvature is between 0.5 cm ^-1 ~ 15 cm Between ^-1. For example, the dressing structure for postoperative wounds in claim 1, wherein the second radius of curvature and the first radius of curvature have a specified ratio, and the specified ratio is between 1.2 and 5.0. For example, the dressing structure for postoperative wounds in claim 1, wherein the composite dressing layer is a single-layer structure, and the composite dressing layer is selected from polyester, polyamide, polyethylene, polypropylene, polyvinyl alcohol, polyurethane, and seaweed Salt, propylene, polyester, polyamide, polyethylene, polypropylene and the foregoing of polybutylene terephthalate, calcium alginate fiber, sodium carboxymethyl cellulose, water-soluble chitosan, and sodium polyacrylate Any one or a mixture of any two or more is made. The overall thickness of the composite dressing layer is between 0.1mm~3cm and there are a large number of micropores distributed on the surface and inside, and the diameter of the micropores is between 0.01mm~0.1mm between. For example, the dressing structure for postoperative wounds of claim 5, wherein the composite dressing layer and the outer sealing layer further comprise a filter layer and an absorbent layer, and the outer sealing layer, the filter layer, and the absorbent layer Layer and the composite dressing layer are stacked in sequence, the filter layer is a net-like structure of hydrophobic gauze with a grid spacing of at least 0.02mm, and the absorbent layer is made of fluff pulp, water-absorbent resin (SAP), Any one of the aforementioned polymer composite water-absorbing materials or a mixture of any two or more are made. For example, the dressing structure for postoperative wounds of claim 1, wherein the composite dressing layer is a two-layer stacked structure, the composite dressing layer includes a foam sponge layer and a film dressing layer, and the foam sponge layer is interposed between the outer seal Between the layer and the film dressing layer, the foam sponge layer is selected from polyester, polyamide, polyethylene, polypropylene, polyvinyl alcohol, polyurethane, seaweed salt, propylene, polyester, polyamide, polyethylene, polypropylene, and Polybutylene terephthalate is made of any one of the foregoing or a mixture of any two or more thereof. The film dressing layer is made of calcium alginate fiber, sodium carboxymethyl cellulose, water-soluble chitosan, and polybutylene terephthalate. The composite dressing layer has a thickness of 0.1mm~3.0cm, and a large number of micropores are distributed on the surface and inside of the composite dressing layer. The diameter of the micropores is Between 0.01mm~0.1mm. For example, the dressing structure for postoperative wounds of claim 7, wherein the composite dressing layer and the outer sealing layer further comprise a filter layer and an absorbent layer, and the outer sealing layer, the filter layer, and the absorbent layer Layer and the composite dressing layer are stacked in sequence, the filter layer is a net-like structure of hydrophobic gauze with a grid spacing of at least 0.02mm, and the absorbent layer is made of fluff pulp, water-absorbent resin (SAP), Any one of the aforementioned polymer composite water-absorbing materials or a mixture of any two or more are made. For example, the dressing structure for postoperative wounds in claim 1, wherein the outer sealing layer is a waterproof and breathable material layer, the air permeability of the outer sealing layer is at least 1000 g/m ² per 24 hours, and the composite dressing The layer is on the side away from the outer sealing layer and further includes a film layer, the film layer and the composite dressing layer are aligned with each other, the film layer is a waterproof and breathable material layer and its air permeability is greater than that of the outer seal Floor. For example, the dressing structure for postoperative wounds of claim 1, wherein the outer seal layer further has a dressing release structure, and the dressing release structure is disposed on the surface of the outer seal layer away from the composite dressing layer A thin flexible sheet-shaped body, so that medical staff can prevent the dressing component from touching the wound area of the human body when the dressing component is unloaded by applying external force to the thin-shaped flexible sheet-shaped body.

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