Medical nursing pad

Abstract

The utility model relates to a medical nursing pad which comprises a surface layer, an absorption layer and a leakage-proof layer which are sequentially stacked from top to bottom, the edge of the surface layer and the edge of the leakage-proof layer are mutually connected through a sealing strip so that the absorption layer can be sealed between the surface layer and the leakage-proof layer, and the medical nursing pad further comprises a duration indicating device arranged on the sealing strip. The duration indicating device comprises an indicating container and a sealing film, the indicating container is provided with a cavity with an upward opening, a color-changeable substance layer which can chemically react with oxygen to generate color change is arranged in the cavity, and the sealing film covers the upper opening of the indicating container in a tearable mode so that the color-changeable substance layer can be sealed in the indicating container. When the medical nursing pad starts to be used, the sealing film is torn off, the color-changeable substance layer is exposed in the air, as time goes on, the color-changeable substance layer reacts with oxygen in the air to change the color, the use time of the medical nursing pad is judged according to the color change of the color-changeable substance layer, and therefore the medical nursing pad is replaced in time.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a medical nursing pad. Background Art

[0002] Medical nursing pads are disposable sanitary products used for medical care, mainly used in hospital surgery, gynecological examinations, maternal care, child care, incontinence of paralyzed patients, women's menstruation and other scenarios.

[0003] A Chinese utility model patent application numbered 202022401246.3 discloses a wet / dry separation nursing pad for clinical care. The pad includes an electrical box, a signal line, an inductive sensor sheet, an upper pad, an adhesive edge, a bottom pad, a touch switch, a lithium battery, a buzzer, an AT89C2051 single-chip microcomputer, a charging socket, a charge / discharge control circuit, an audio playback circuit, and an indicator light. The bottom pad is made of waterproof nylon fabric, with an absorbent upper pad positioned at the center of its upper portion. The electrical box is located on one side of the bottom pad, and an adhesive edge is provided around the lower portion of the upper pad. The inductive sensor sheet is positioned at the center of the upper pad, connected to the interior of the electrical box by a signal line. This solution incorporates a sensor device into the nursing pad structure, monitoring the humidity of the upper pad and providing a prompt reminder to replace the pad.

[0004] While the above-mentioned technical solution provides a prompt notification when a patient or child's body fluids soak the nursing pad, in actual use, the pad often remains wet even after prolonged use. However, continued use of the pad increases the risk of infection for the patient or adversely affects the child's skin, leading to diaper rash. Therefore, there is an urgent need for a medical nursing pad that can indicate the duration of use, prompting a replacement and thus preventing prolonged use. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a medical nursing pad which can prompt the usage time to prompt replacement and avoid excessive use of the pad in view of the current status of the existing technology.

[0006] The present invention solves the above-mentioned technical problems by adopting a technical solution: a medical nursing pad comprising a surface layer, an absorbent layer, and a leakproof layer stacked sequentially from top to bottom. The edges of the surface layer and the leakproof layer are connected to each other by a sealing strip, thereby sealing the absorbent layer between the surface layer and the leakproof layer. The medical nursing pad also includes a time indicator device disposed on the sealing strip. The time indicator device includes an indicator container and a sealing film. The indicator container has an upwardly open cavity and contains a color-changing material layer that chemically reacts with oxygen to produce a color change. The sealing film removably covers the upper opening of the indicator container, thereby sealing the color-changing material layer within the indicator container. A sealing strip is formed at the connection between the edge of the surface layer and the edge of the leakproof layer, and the sealing strip seals the absorbent layer between the surface layer and the leakproof layer.

[0007] To enhance the structural strength of the duration indicator, an isolation support plate is installed within the indicator container, dividing the interior space of the indicator container into multiple subspaces. The duration indicator is located on the sealing strip, with the opening of the indicator container facing upward. When the medical nursing pad is in use, the color-changing material layer within the indicator container could be squeezed and leak out. By separating the indicator container into smaller pieces, the isolation support plate enhances the structural strength of the indicator container and prevents leakage of the color-changing material layer.

[0008] To reduce the adverse effects of external structures or substances on the color-changing material layer, the indicator container further includes a separation net connected to the upper opening edge of the indicator container and used to separate the color-changing material layer from the sealing film; or the indicator container further includes a transparent breathable film connected to the upper opening edge of the indicator container and used to separate the color-changing material layer from the sealing film. The transparent breathable film facilitates user observation of the color of the color-changing material layer.

[0009] To reduce discomfort caused by the duration indicator device to patients or children, the indicator container is a silicone disc, and the isolation net is a silicone mesh. Because silicone is flexible and resilient, it reduces discomfort when the duration indicator device is pressed against the patient's or child's body. In other embodiments, rubber or other flexible materials may also be used. In one embodiment, the indicator container is a plastic film with a backside bonded to a sealing strip. The film is coated with a color-changing substance, and the opening of the plastic film is sealed with a transparent breathable film and then a sealing film.

[0010] Preferably, the cavity of the indicating container is cylindrical, and the diameter of the cavity is 3 to 6 mm.

[0011] Preferably, the cavity depth of the indicator container is 1.5 to 3.5 mm.

[0012] To clearly display the usage time corresponding to the color of the color-changing material layer, the time indicator device also includes a color reference indicator strip disposed on the sealing strip and used to indicate different time periods. The different colors displayed on the color reference indicator strip represent different lengths of time the color-changing material layer has been exposed to air after the sealing film has been removed. In other words, the color reference indicator strip has multiple reference colors, each corresponding to a different usage time period.

[0013] Preferably, the color-changing substance layer includes a gel layer and an indicator dispersed within the gel layer, wherein the indicator is a methylene blue indicator or a resazurin indicator. The methylene blue indicator or the resazurin indicator reacts chemically with oxygen in the air to produce a blue color, and the longer the contact with air, the deeper the blue color. Both the methylene blue indicator and the resazurin indicator are low-toxic indicators that are harmless to human skin.

[0014] To ensure the medical nursing pad is suitable for use in sterile nursing scenarios, it includes a pad body and a sterile packaging bag that seals the pad body. The pad body is formed by the surface layer, absorbent layer, leak-proof layer, sealing strip, and duration indicator. The sterile design of the medical nursing pad makes it suitable not only for general home care but also for hospital care settings with strict environmental requirements, such as post-operative care for neurosurgeons and obstetrics and gynecology patients.

[0015] Preferably, the front surface of the sealing strip is connected to the bottom surface of the indicator container.

[0016] In order to prevent the medical nursing pad from folding or moving during use, a plurality of adhesive layers are provided on the back of the leakage-proof layer, and each adhesive layer is covered with an adhesive film.

[0017] Preferably, the adhesive layer is distributed at the four corners and the middle of the back side of the leakage-proof layer.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] First, when the medical nursing pad begins to be used, the sealing film of the time indicator device is torn off to expose the color-changing material layer in the indicator container to the air. As time passes, the color-changing material layer reacts with oxygen in the air to change color. The color change of the color-changing material layer can be used to determine the length of time the medical nursing pad has been used, so that the medical nursing pad can be replaced in time to prevent the medical nursing pad from being used for too long, which may damage the user's skin and increase the risk of infection.

[0020] Secondly, by adopting a sterile design for medical nursing pads, such as sealing the medical nursing pads in sterile packaging bags, the medical nursing pads can be used in nursing scenarios with high environmental requirements, such as postoperative care for neurosurgery and postoperative care for obstetrics and gynecology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front structure of the medical nursing pad in an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the back structure of the medical nursing pad in an embodiment of the present utility model;

[0023] Figure 3 for Figure 1 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0025] like Figures 1 to 3 The figure shows a preferred embodiment of the medical nursing pad of the present invention. The pad comprises, stacked from top to bottom, a surface layer 1, an absorbent layer, and a leakproof layer 2. The surface layer 1 and the leakproof layer 2 have the same area, while the absorbent layer is smaller than the surface layer 1. The edges of the surface layer 1 and the leakproof layer 2 are connected, and a sealing strip 3 is formed at the connection point, completely sealing the absorbent layer between the surface layer 1 and the leakproof layer 2. The surface layer 1 is typically made of nonwoven fabric or cotton, while the leakproof layer 2 is typically a polyethylene plastic film. The surface layer 1 and the leakproof layer 2 are connected using hot-melt adhesive. To improve liquid absorption efficiency, a flow guide net 11 is also provided on the front of the surface layer 1.

[0026] The sealing strip 3 is provided with a duration indicator 4, which comprises an indicator container 41, a sealing film 42, and a color-changing material layer 43. In this embodiment, the indicator container 41 is a silicone disc, the bottom surface of which is connected to the front surface of the sealing strip 3. The silicone disc has an upwardly open cylindrical cavity with a diameter of 3 to 6 mm and a depth of 1.5 to 3.5 mm. An isolation support plate 44 is provided within the silicone disc to separate the internal space of the silicone disc. The color-changing material layer 43, which reacts with oxygen to produce a color change, is disposed in each subspace separated by the isolation support plate 44. A flexible silicone mesh isolation net 45 is also connected to the edge of the silicone disc opening, covering the color-changing material layer 43. The sealing film 42 covers the outer surface of the isolation net 45 and is sealed to the upper opening of the indicator container 41, thereby sealing the color-changing material layer 43 and the isolation net 45 within the indicator container 41. The sealing film 42 is also provided with a tear strip 421 for easy removal of the sealing film 42. When the medical nursing pad starts to be used, the sealing film 42 is torn off to expose the color-changing material layer 43 to the air. As time goes by, the color-changing material layer reacts with oxygen in the air to change color. The color change of the color-changing material layer can be used to judge the length of time the medical nursing pad has been used, thereby achieving the purpose of timing.

[0027] In the above structure, the indicator container 41 and the isolation net 45 are both made of flexible silicone material. When the length indicating device is pressed under the body of a patient or a child, the silicone material can reduce their discomfort; the isolation support plate 44 is in the shape of a cross, and the four ends of the "cross" are respectively connected to the side walls of the indicator container 41. The isolation support plate 44 separates the space inside the indicator container 41, which can increase the structural strength of the indicator container 41, so that the color-changing substance layer 43 inside the indicator container 41 is not easily squeezed by external force and leaked out of the indicator container 41; the isolation net 45 is provided with fine mesh holes. After tearing off the sealing film 42, the fine mesh holes can be breathable while reducing the adverse effects of external structures or substances on the color-changing substance layer 43.

[0028] Furthermore, the color-changing substance layer 43 includes a gel layer and a methylene blue indicator or resazurin indicator dispersed within the gel layer. The methylene blue indicator or resazurin indicator reacts chemically with oxygen in the air to produce a blue color, with the blue color becoming darker the longer it is in contact with air. The gel layer needs to have good oxygen permeability to allow oxygen to react with the indicator. Common gel matrices for the gel layer include agar, gelatin, carrageenan, and the like. The methylene blue indicator or resazurin indicator mentioned here are both existing, mature indicator products and will not be described in detail here.

[0029] The color-changeable substance layer 43 is prepared as follows: methylene blue or resazurin is mixed with a suitable solvent (such as water or ethanol) to form an indicator solution, and then the indicator solution is mixed with a gel matrix and heated to gelation.

[0030] In other embodiments, the indicator container 41 of the duration indicator device 4 can be made of an airtight, watertight film. After the color-changing substance layer 43 is disposed on the airtight, watertight film, it is sealed with a transparent or translucent waterproof, breathable film. Finally, a sealing film 42 is covered on the waterproof, breathable film to seal the color-changing substance layer 43. When the medical nursing pad is used, the sealing film 42 is removed, allowing air to pass through the waterproof, breathable film and react with the color-changing substance layer 43. This design can simplify the structure of the duration indicator 4, making it smaller and more flexible.

[0031] In order to clearly display the usage time of the medical nursing pad corresponding to the color of the color-changing material layer 43, the time indicator 4 also includes a color reference indicator strip 46 provided on the sealing strip 3 for representing different time periods. The color reference indicator strip 46 is marked with different reference colors, wherein different reference colors correspond to different time periods when the color-changing material layer 43 is exposed to the air after the sealing film 42 is removed. For example, the color reference indicator strip 46 displays different depths of blue, and the darker the blue, the longer the color-changing material layer 43 has been exposed. The user can compare the current color of the color-changing material layer 43 with the color reference indicator strip 46 to determine the usage time of the medical nursing pad. Figure 3 As shown, the color reference indicator bar 46 can indicate the color between 0 and 4 days. Of course, the specific marked color, indicated time and indicator concentration can be optimized through a limited number of experiments.

[0032] In order to prevent the medical nursing pad from folding or moving during use, several adhesive layers are provided on the back of the leakage-proof layer 2, and the adhesive layers are covered with an adhesive film 6; the adhesive layers are distributed at the four corners and the middle of the back of the leakage-proof layer 2.

[0033] Of course, the medical nursing pad can also be sealed in a sterile packaging bag. In this way, the medical nursing pad can be used in nursing scenes with high environmental requirements, such as postoperative nursing for brain surgery or postoperative nursing for obstetrics and gynecology.

Claims

1. A medical nursing pad, comprising a surface layer (1), an absorbent layer, and a leakproof layer (2) stacked sequentially from top to bottom, wherein the edge of the surface layer (1) and the edge of the leakproof layer (2) are connected to each other by a sealing strip (3) so that the absorbent layer is sealed between the surface layer (1) and the leakproof layer (2), characterized in that: The medical nursing pad further comprises a time indication device (4) arranged on the sealing strip (3), the time indication device (4) comprising an indication container (41) and a sealing film (42), the indication container (41) having an upwardly open cavity and a color-changing substance layer (43) capable of chemically reacting with oxygen to produce a color change is arranged in the cavity, the color-changing substance layer (43) comprising a gel layer and an indicator dispersed inside the gel layer, and the sealing film (42) removably covers the upper opening of the indication container (41) so as to seal the color-changing substance layer (43) inside the indication container (41); The indicating container (41) further comprises a transparent breathable film connected to the upper opening edge of the indicating container (41) and used for isolating the color-changeable substance layer (43) from the sealing film (42).

2. The medical nursing pad according to claim 1, characterized in that: An isolation support plate (44) is provided inside the indicator container (41) for dividing the inner space of the indicator container (41) into a plurality of subspaces.

3. The medical nursing pad according to claim 2, characterized in that: The indicating container (41) further comprises an isolation net (45) connected to the upper opening edge of the indicating container (41) and used for isolating the color-changeable substance layer (43) from the sealing film (42).

4. The medical nursing pad according to claim 3, characterized in that: The indicator container (41) is a silica gel disc, and the isolation net (45) is a silica gel net.

5. The medical nursing pad according to claim 4, characterized in that: The cavity of the indicating container (41) is cylindrical, and the diameter of the cavity is 3 to 6 mm.

6. The medical nursing pad according to claim 5, characterized in that: The cavity depth of the indicator container (41) is 1.5 to 3.5 mm.

7. The medical nursing pad according to any one of claims 1 to 6, characterized in that: The duration indicator device (4) further comprises a color reference indicator strip (46) provided on the sealing strip (3) and used to represent different durations; wherein the different colors displayed on the color reference indicator strip (46) represent different durations of time that the color-variable material layer (43) is exposed to the air after the sealing film (42) is removed.

8. The medical nursing pad according to claim 7, characterized in that: The indicator is methylene blue indicator or resazurin indicator.

9. The medical nursing pad according to any one of claims 1 to 6, characterized in that: It comprises a nursing pad body and a sterile packaging bag for sealing the nursing pad body; wherein the nursing pad body is formed by the surface layer (1), the absorption layer, the leak-proof layer (2), the sealing strip (3) and the time indication device (4).

10. The medical nursing pad according to any one of claims 1 to 6, characterized in that: The back of the leak-proof layer (2) is provided with a plurality of adhesive layers, and each adhesive layer is covered with an adhesive film (6).

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