Skin sweat collecting device

Abstract

The utility model discloses a skin sweat collecting device, which comprises an adhesive layer, a liquid collecting layer, a liquid collecting layer and a liquid collecting layer, the adsorption layer is arranged on the pasting layer and is in contact with the skin, and the pasting layer is provided with an air inlet and a liquid outlet pipe which are communicated with the adsorption layer; the negative pressure device is communicated with the liquid outlet pipe; the negative pressure device generates negative pressure suction force, and airflow enters from the air inlet and passes through the adsorption layer to simultaneously suck sweat on the skin to the liquid outlet pipe to be discharged and collected. By arranging the pasting layer and the adsorption layer, the pasting layer enables the adsorption layer to be pasted on the skin of a patient, negative pressure suction force is generated through the negative pressure device to suck sweat and collect the sweat, the sweat penetrates through the adsorption layer from the skin and then is discharged through the liquid outlet pipe, the sweat collection process is simplified, the pasting layer can enable the adsorption layer not to fall off on the skin easily, and the sweat collection effect is improved. The sweat collector is simple in structure and suitable for different perspiration environments of patients, the effect of sucking sweat through negative pressure is more obvious, the sweat collector is not easily influenced by the outside, impurities are not easily mixed into collected sweat, and the accuracy of sweat component analysis is improved.

Description

Technical Field

[0001] The utility model relates to the field of medical detection instruments, in particular to a skin sweat collection device. Background Art

[0002] In clinical trials of fluid secreted by the skin, it is often necessary to collect sweat for component analysis. The existing common technical means is to wipe the skin with a paper towel or dry towel to absorb the sweat on the surface when the patient is heated or sweating during exercise, and then squeeze the sweat out and collect it. There is also a method of scraping and collecting sweat on the patient's skin with a soft scraper, but the above method is relatively cumbersome to operate, requiring medical staff to manually operate it many times, and the effect of collecting sweat is not good. It is easy to collect impurities such as keratin and dead skin on the patient's skin. Even if medical disinfected paper towels or scrapers are used to collect sweat, it is easy to be mixed with impurities such as clothing and hair, and it is easily affected by the external environment, which is not conducive to the accuracy of sweat component detection. Utility Model Content

[0003] The skin sweat collection device of the present invention can effectively solve the problem in the prior art that sweat collection is not conducive to detection accuracy.

[0004] According to one aspect of the present invention, a device for collecting skin sweat is provided, comprising:

[0005] Adhesive layer, used for adhering to the skin;

[0006] an adsorption layer, disposed on the adhesive layer and in contact with the skin, the adhesive layer being provided with an air inlet and a liquid outlet communicating with the adsorption layer;

[0007] A negative pressure device is connected to the liquid outlet pipe; the negative pressure device generates negative pressure suction, and air flows into the air inlet and passes through the adsorption layer to simultaneously attract sweat on the skin to the liquid outlet pipe for discharge and collection.

[0008] In some embodiments, the adsorption layer is provided with a sweat collection channel, which is connected to the air inlet and the liquid outlet pipe. The pressure device generates a negative pressure suction force to draw sweat from the skin into the sweat collection channel, which is then discharged and collected through the liquid outlet pipe. Thus, the sweat collection channel is used to centrally draw and discharge sweat, and the sweat collection channel can effectively transmit the negative pressure suction force.

[0009] In some embodiments, the sweat collection channel has a curved, serpentine structure, having an initial end and a terminal end that are connected, the initial end and the terminal end being connected to the air inlet and the liquid outlet, respectively. Thus, the shape of the sweat collection channel facilitates the collection of sweat on the adsorption layer, allowing sweat absorbed by the adsorption layer to be drawn into the sweat collection channel to the greatest extent possible.

[0010] In some embodiments, the sweat collection channels are exposed at the bottom of the absorbent layer and cover the skin, and sweat on the skin is directly attracted to the sweat collection channels. Thus, the sweat collection channels contacting the skin facilitates direct collection of sweat on the skin within the sweat collection channels and also facilitates the attraction of sweat near the sweat collection channels.

[0011] In some embodiments, the adhesive layer has a larger area than the absorbent layer, and the adhesive layer covers the absorbent layer, and the adhesive layer is adhered to the skin to press the absorbent layer tightly against the skin. Thus, the adhesive layer forms a closed space in the absorbent layer, which is conducive to sweat absorption.

[0012] In some embodiments, the liquid outlet pipe is provided with an adjustment switch, and the adjustment switch is used to adjust the suction force generated by the negative pressure device. Thus, the adjustment switch is used to adjust the pressure of the negative pressure suction force to accommodate a wider range of people.

[0013] In some embodiments, a protective layer is provided between the adhesive layer and the absorbent layer, the protective layer covering the absorbent layer. The air inlet and the liquid outlet pass through the protective layer and communicate with the sweat collection channel. Thus, the protective layer serves to isolate the absorbent layer from the adhesive layer, preventing the adhesive layer from affecting sweat collection and enhancing the effectiveness of the absorbent layer.

[0014] In some embodiments, a liquid collection bottle is provided between the liquid outlet pipe and the negative pressure device. The negative pressure device generates negative pressure suction to draw sweat from the skin through the liquid outlet pipe into the liquid collection bottle. Thus, the liquid collection bottle is used to collect sweat discharged from the liquid outlet pipe. After completion, the liquid collection bottle can be directly removed for convenient collection and use.

[0015] In some embodiments, an air inlet pipe is provided on the adhesive layer, the air inlet is provided on the air inlet pipe, and a cap is provided on the air inlet pipe to seal the air inlet. Thus, the cap is used to seal the air inlet, preventing impurities from entering the air inlet pipe when sweat absorption is not in progress.

[0016] In some embodiments, a support tube is provided within the sweat collection channel, the support tube having dense holes and communicating with the air inlet pipe and the liquid outlet pipe. Thus, the support tube supports the sweat collection channel to prevent deformation and squeezing caused by negative suction, which would affect the drainage and collection of sweat.

[0017] Compared with the prior art, the skin sweat collection device of the present invention has the following beneficial effects:

[0018] The present application sets an adhesive layer and an adsorption layer so that the adhesive layer adheres the adsorption layer to the patient's skin, and generates negative pressure suction through a negative pressure device to attract and collect sweat. The sweat passes through the adsorption layer from the skin and is discharged through the liquid outlet tube, which simplifies the sweat collection process. The adhesive layer can prevent the adsorption layer from falling off the skin and adapt to the different sweating environments of the patients. The effect of sucking sweat through negative pressure is more obvious and is not easily affected by the outside world. The collected sweat is not easily mixed with impurities, which is beneficial to the accuracy of sweat component analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the skin sweat collection device of the present invention;

[0020] Figure 2 Schematic diagram of the structure of the adhesive layer and the adsorption layer in the present invention;

[0021] Figure 3 A side view of another embodiment of the present invention;

[0022] Figure 4 This is a reference diagram for the use of the liquid collecting bottle in the utility model.

[0023] In the figure: 1-adhesive layer, 11-air inlet pipe, 12-air inlet, 13-liquid outlet pipe, 14-adjusting switch, 2-adsorption layer, 21-sweat collection channel, 22-protective layer, 3-negative pressure device, 4-liquid collection bottle, 41-output pipe. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0025] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0026] The utility model relates to a skin sweat collection device, which is particularly suitable for collecting sweat on the skin, and is also suitable for collecting other liquids on the skin, not just sweat. The skin sweat collection device is easy to use and operate, saves the traditional sweat collection process, and is also conducive to improving the efficiency of the sweat component analysis process.

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Figure 1 The following schematically shows a device for collecting skin sweat according to an embodiment of the present invention. Figure 1 、 Figure 2 As shown, the skin sweat collection device includes an adhesive layer 1, an adsorption layer 2 and a negative pressure device 3.

[0029] The present application does not limit the shapes of the adhesive layer 1 and the absorbent layer 2, and they can be adapted to the patient's perspiration area. The adhesive layer 1 has a skin-adhesive layer at its bottom. In this embodiment, the adhesive layer 1 is specifically a 3M transparent dressing, but other waterproof adhesive sheets may also be used. The adhesive layer 1 is primarily intended to be adhered to the patient's skin, for example, where perspiration collection is desired, typically on the patient's back. It also serves to locally seal the absorbent layer 2. The adhesive layer 1 prevents the absorbent layer 2 from falling during exercise and heating. The absorbent layer 2 can also be used in a dedicated heated perspiration room while the patient is lying supine or prone to collect perspiration. The absorbent layer 2 is disposed at the bottom (the adhesive side) of the adhesive layer 1. The absorbent layer 2 can contact the skin, meaning that the adhesive layer 1 adheres to the patient's back while pressing the absorbent layer 2 against the skin. The absorbent layer 2 is preferably an absorbent sponge, but a foam dressing may also be used. The absorbent layer 2 has dense pores that prevent it from blocking the sweat pores from absorbing sweat, allowing sweat discharged from the sweat pores to penetrate and infiltrate the absorbent layer 2. In addition, the area of ​​the adhesive layer 1 is larger than that of the adsorption layer 2, so that the adhesive layer 1 can completely cover the adsorption layer 2. The adsorption layer 2 is not easy to fall off during use, and sweat can be confined to a specific space, which is conducive to collecting sweat.

[0030] Among them, such as Figure 2As shown, the adsorption layer 2 is provided with a sweat collection channel 21. The sweat collection channel 21 adopts a curved and extended serpentine structure, which can extend over a large area on the surface area of ​​the adsorption layer 2 so as to reserve a gap for sweat discharge to the greatest extent. The sweat collection channel 21 does not pass through the side of the adsorption layer 2 to avoid penetrating into the adhesive layer 1 and reducing the sealing effect. In this embodiment, the sweat collection channel 21 is exposed on the bottom surface of the adsorption layer 2 so as to be in direct contact with the skin and form a specific space with the skin to attract sweat. Sweat can be adsorbed on the adsorption layer 2. The sweat collection channel 21 is conducive to providing a collection channel for sweat, which is then collected and discharged through negative pressure suction. In other embodiments, the sweat collection channel 21 does not directly contact the skin, but is arranged inside the adsorption layer 2. Sweat is absorbed by the adsorption layer 2 and then enters the sweat collection channel 21. The sweat collection channel 21 has an initial end A and a final end B. The adhesive layer 1 is provided with an air inlet pipe 11 and a liquid outlet pipe 13 connected to the adsorption layer 2. Specifically, the air inlet pipe 11 and the liquid outlet pipe 13 are connected to each other through the sweat collection channel 21. In this embodiment, the initial end A is connected to the air inlet pipe 11, and the final end B is connected to the liquid outlet pipe 13. The air inlet pipe 11 has an air inlet 12, which is mainly used to provide an opening for adsorption airflow. The air inlet pipe 11 is used to avoid blockage by debris. The air inlet 12 can be set at the end of the air inlet pipe 11 or adopt a side hole structure. Therefore, by applying negative pressure suction in the liquid outlet pipe 13, a suction effect can be formed in the sweat collection channel 21. The suction can draw sweat from the adsorption layer 2 to the surrounding areas through the sweat collection channel 21. The sweat collection channel 21 is conducive to the centralized drainage of sweat.

[0031] The negative pressure device 3 is used to generate negative pressure suction. It can be a device that can generate negative pressure, such as an air pump or a negative pressure blower. The output end of the negative pressure device 3 is connected to the liquid outlet pipe 13. The negative pressure suction generated by the negative pressure device 3 is used to suck the sweat collection channel 21. The liquid outlet pipe 13 can be set as a long thin tube structure. The air flow enters from the air inlet 12 and then passes through the adsorption layer 2 while attracting sweat and concentrating it in the sweat collection channel 21. Finally, it is discharged and collected through the liquid outlet pipe 13. In other embodiments, the negative pressure device 3 is a compressible drainage bottle. Before use, the drainage bottle is squeezed to form a compressed state, and then the liquid outlet pipe 13 is connected to generate negative pressure suction from the liquid outlet pipe 13 so that sweat can be collected normally into the drainage bottle. The drainage bottle has a small size and is convenient to carry, which is conducive to increasing the flexibility of use for patients.

[0032] Further, such as Figure 1As shown, an adjustment switch 14 is provided on the liquid outlet pipe 13 for adjusting the negative pressure suction generated by the negative pressure device 3. The adjustment switch 14 can adopt a speed control knob, a pressure regulating valve or a suction adjustment slider to select the appropriate negative pressure suction according to the needs. For example, the adjustment switch 14 has a slider, and the slider of the adjustment switch 14 is set in a certain part of the air flow channel and can be moved manually. The position of the slider of the adjustment switch 14 determines the opening size of the air flow channel. When the slider is moved to a position closer to the closed position, it will reduce the effective cross-sectional area of ​​the air flow channel, increase the resistance of the air flow, and thus reduce the suction. Conversely, when the slider is moved to a more open position, the resistance of the air flow channel is reduced and the suction is enhanced. In other embodiments, a one-way valve is provided in the liquid outlet pipe 13 to facilitate the one-way output of sweat in the liquid outlet pipe 13, thereby preventing the backflow of sweat and air flow.

[0033] In some embodiments, as Figure 3 As shown, a protective layer 22 is provided between the adhesive layer 1 and the adsorption layer 2. The protective layer 22 is made of a non-absorbent material and is used to separate the adhesive layer 1 from the adsorption layer 2. The protective layer 22 can be directly coated on the adsorption layer 2, or the adsorption layer 2 is embedded in the adhesive layer 1 through the protective layer 22 to prevent the adhesive layer 1 from affecting the sweat collection effect. The protective layer 22 covers the adsorption layer 2, and the air inlet pipe 11 and the liquid outlet pipe 13 pass through the protective layer 22 and are connected to the sweat collection channel 21. Through the above structure, the sweat collection channel 21 can absorb sweat and discharge it through the liquid outlet pipe 13.

[0034] In some embodiments, as Figure 4 As shown, a liquid collecting bottle 4 is provided between the liquid outlet pipe 13 and the negative pressure device 3. The liquid collecting bottle 4 is a sealed bottle body. The liquid outlet pipe 13 and the output pipe 41 of the negative pressure device 3 extend to the top of the liquid collecting bottle 4. That is, the liquid outlet pipe 13 is connected to the negative pressure device 3 through the liquid collecting bottle 4. When the negative pressure device 3 is started, negative pressure suction is generated. The sweat passes through the sweat collecting channel 21 and then is discharged from the liquid outlet pipe 13. Finally, it enters the liquid collecting bottle 4 and is collected. When component analysis is required, it is only necessary to remove the liquid collecting bottle 4. When in use, the liquid collecting bottle 4 can be placed on a fixed bracket to prevent the patient from carrying the liquid collecting bottle 4 and moving drastically. Similarly, a longer liquid outlet pipe 13 can be used for drainage.

[0035] In some embodiments, the air inlet pipe 11 is provided with a cap that blocks the air inlet port 12. The cap is used to prevent impurities from entering the air inlet pipe 11 when the negative pressure device 3 is not in use. The cap can be integrally connected to the air inlet pipe 11, for example, by a flexible belt, or the cap can be hinged and flipped on the air inlet port 12. After the sweat is collected, the cap is sealed and the negative pressure device 3 is closed to further collect the sweat remaining in the liquid outlet pipe 13 and the sweat collection channel. Furthermore, a filter is provided within the air inlet pipe 11 to filter impurities inhaled from the air inlet pipe 11 to prevent them from affecting the accuracy of the sweat composition analysis. The number of filters can be set according to actual needs. Typically, the filter only allows gas and liquid to pass through.

[0036] In some embodiments, a support tube is provided within the sweat collection channel. The support tube is completely contained within the sweat collection channel and has the same curved, elongated shape as the sweat collection channel, abutting the inner wall of the sweat collection channel. This supports the sweat collection channel and prevents it from being deformed and compressed by negative pressure suction, which would otherwise affect the sweat collection effect. The support tube has densely distributed holes on its sides, allowing moisture to enter the support tube through the holes and be drained away. The support tube is also connected to the liquid outlet pipe 13 and the air inlet pipe 11. This allows sweat to be more effectively drawn in and discharged, allowing sweat absorbed by the adsorption layer 2 to effectively enter the support tube through the holes. Therefore, the support tube requires a certain hardness to resist deformation due to negative pressure suction. Therefore, under the action of the support tube, the sweat collection channel can be directly disposed within the adsorption layer 2. That is, sweat must pass through the adsorption layer 2, then enter the sweat collection channel, and finally be drawn into the support tube. As can be seen, sweat must be filtered by the adsorption layer 2 and the holes, resulting in fewer impurities in the collected sweat, which is beneficial for the accuracy of sweat composition analysis.

[0037] The above description is only a preferred embodiment of the present invention. To keep the description concise, not all possible combinations of the various technical features in the above embodiment are described. This does not limit the present invention in any form. Therefore, any modifications, equivalent changes and modifications made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A device for collecting skin sweat, characterized in that: include: Adhesive layer, used for adhering to the skin; an adsorption layer, disposed on the adhesive layer and in contact with the skin, the adhesive layer being provided with an air inlet and a liquid outlet communicating with the adsorption layer; A negative pressure device is connected to the liquid outlet pipe; the negative pressure device generates negative pressure suction, and air flows into the air inlet and passes through the adsorption layer to simultaneously attract sweat on the skin to the liquid outlet pipe for discharge and collection.

2. The skin sweat collection device according to claim 1, characterized in that: The adsorption layer is provided with a sweat collection channel, which is connected to the air inlet and the liquid outlet pipe. The pressure device generates negative pressure suction to attract sweat on the skin to the sweat collection channel, and the sweat is discharged and collected through the liquid outlet pipe.

3. The skin sweat collection device according to claim 2, characterized in that: The sweat collecting channel is a curved and extended serpentine structure, and the sweat collecting channel has an initial end and a tail end that are connected, and the initial end and the tail end are respectively connected to the air inlet and the liquid outlet pipe.

4. The skin sweat collection device according to claim 2, characterized in that: The sweat collection channel is exposed at the bottom of the adsorption layer and covers the skin, and the sweat on the skin is directly attracted to the sweat collection channel.

5. The skin sweat collection device according to claim 1, characterized in that: The area of ​​the adhesive layer is larger than that of the adsorption layer. The adhesive layer covers the adsorption layer and is adhered to the skin through the adhesive layer so that the adsorption layer is pressed tightly against the skin.

6. The skin sweat collection device according to claim 1, characterized in that: The liquid outlet pipe is provided with an adjustment switch, and the adjustment switch is used to adjust the suction force generated by the negative pressure device.

7. The skin sweat collection device according to claim 2, characterized in that: A protective layer is provided between the adhesive layer and the adsorption layer, the protective layer covers the adsorption layer, and the air inlet and the liquid outlet pipe pass through the protective layer and are communicated with the sweat collection channel.

8. The skin sweat collection device according to claim 1, characterized in that: A liquid collecting bottle is provided between the liquid outlet pipe and the negative pressure device, and the negative pressure device generates negative pressure suction to attract sweat on the skin to be discharged from the liquid outlet pipe to the liquid collecting bottle.

9. The skin sweat collection device according to claim 2, characterized in that: An air inlet pipe is provided on the adhesive layer, the air inlet port is arranged on the air inlet pipe, and a pipe cover for closing the air inlet port is provided on the air inlet pipe.

10. The skin sweat collection device according to claim 9, characterized in that: A support tube is provided in the sweat collection channel, the support tube is provided with dense holes, and the support tube is communicated with the air inlet pipe and the liquid outlet pipe.

Images