Partitioned spliced mattress

Abstract

The utility model relates to a partitioned spliced mattress which comprises an air bag region and a water bag region which are fixedly connected or detachably connected into a whole. The air bag area comprises an air bag layer and a fabric layer attached to the surface of the air bag layer. The air bag layer is formed by connecting and combining adjacent sides of a plurality of strip-shaped air bag units. The mattress is formed by splicing the air bag area and the water bag area, the sacrococcygeal region is supported by the water bag, and the water bag can conform to the curve of a human body, so that the pressure borne by the sacrococcygeal region is effectively reduced; the four limbs and the trunk of the user are supported by the air bags, and effective and targeted support can be provided for different parts of the user through inflation and deflation. Compared with an integrated water bed and an integrated air bed which are commonly used, the mattress disclosed by the embodiment has the same or equal supporting effect, and meanwhile, different subareas are connected through welding or zippers, so that the manufacturing difficulty can be obviously reduced; and local damage can be replaced and maintained in time without maintaining or scrapping the whole bed, so that the material cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mattress technology, and in particular to a partitioned, modular mattress. Background Technology

[0002] Pressure ulcers are skin and / or tissue injuries localized to a body position. They are primarily caused by prolonged, continuous pressure on the skin, leading to poor blood circulation, ischemia, hypoxia, and nutrient deficiency, ultimately resulting in skin necrosis and ulceration. High-risk groups include patients who are bedridden for extended periods and the elderly.

[0003] The key to preventing pressure sores lies in regularly changing body position, keeping the skin clean and dry, and providing appropriate massage stimulation to relieve pressure on the tissues. Based on this, medical mattresses play an important role in rehabilitation therapy; they can help patients relieve back pain, spinal problems, and other issues by providing good support and comfort to promote physical recovery.

[0004] Clinically, pressure ulcers are common in remote rural areas. Existing standard spring or foam mattresses, unable to be adjusted to individual patient needs, are ill-suited to meet the personalized requirements of different patients, especially those who are bedridden for extended periods. This can lead to concentrated pressure points, increasing the risk of pressure ulcers, and thus fails to meet clinical demands. Air-jet and gel-type alternating mattresses, while expensive, often suffer from poor stability and durability, affecting their effectiveness. Latex mattresses offer good breathability and pressure relief, but are pricey and lack massage functions. They also lack the precise support needed for patients with spinal disorders, potentially worsening their condition.

[0005] Therefore, there is an urgent need for a new type of mattress that can effectively solve the above problems in order to improve the sleep quality of clinical patients and prevent pressure sores. Utility Model Content

[0006] To address the problems existing in the prior art, this utility model provides a partitioned, modular mattress, comprising the following technical solutions.

[0007] A modular mattress includes an air bladder area and a water bladder area, wherein the air bladder area and the water bladder area are fixedly connected or detachably connected as a whole; the air bladder area includes an upper limb air bladder area and a lower limb air bladder area, which are arranged opposite each other on both sides of the water bladder area.

[0008] Furthermore, the airbag area includes an airbag layer and a fabric layer that is adhered to the surface of the airbag layer; the airbag layer is composed of multiple strip-shaped airbag units joined together side by side.

[0009] Furthermore, the airbag area also includes an elbow support airbag unit disposed on the upper surface of the upper limb airbag area, and a heel support airbag unit disposed on the upper surface of the lower limb airbag area; the elbow support airbag unit is configured as a square groove, and the heel support airbag unit is configured as a U-shaped groove.

[0010] Furthermore, the airbag area also includes a head support airbag unit disposed on the upper surface of the upper limb airbag area. The head support airbag unit is configured as a double-layer structure, including an upper pillow material area and a lower inflation area.

[0011] Furthermore, the mattress is also equipped with a pressure sensing layer, an inflation / deflation device, and a PLC; the pressure sensing layer is located in the airbag area and includes multiple flexible pressure sensors; the inflation / deflation device includes an inflation pump, an inflation hose, a de-inflation pump, a de-inflation hose, and a solenoid valve, with both ends of the inflation hose fixedly connected to the inflation pump and the airbag unit, respectively, and both ends of the de-inflation hose fixedly connected to the de-inflation pump and the airbag unit, respectively; the solenoid valve is installed on the inflation hose and the de-inflation hose, respectively; the flexible pressure sensors, the inflation pump, the de-inflation pump, and the solenoid valve are all electrically connected to the PLC.

[0012] Furthermore, multiple airbag units are arranged in a predetermined layout, with one end connected sequentially via a T-connector to form multiple parallel airbag groups.

[0013] Based on the above technical solution, this utility model has the following beneficial effects:

[0014] 1. The mattress described in this utility model is composed of an air bladder area and a water bladder area. Water bladders provide support for the sacrum and coccyx, areas prone to pressure sores, conforming to the body's curves and effectively reducing pressure on this area. Air bladders provide support for the user's limbs and torso, offering effective and targeted support to different parts of the body through inflation and deflation. Compared to commonly used one-piece waterbeds and airbeds, this mattress, while providing the same or equivalent support, significantly reduces manufacturing difficulty by connecting different sections through welding or zippers. Local damage allows for timely replacement and repair without requiring the entire mattress to be repaired or scrapped, thus reducing material costs.

[0015] 2. The mattress described in this utility model is equipped with an elbow support airbag unit and a heel support airbag unit, and the lengths of the elbow support airbag unit and the heel support airbag unit are adaptively extended. Furthermore, the elbow support airbag unit is set as a square groove, and the heel support airbag unit is set as a U-shaped groove. In use, the patient's arm or heel is placed in the corresponding support airbag unit, and the user's arm, calf, heel, etc. are massaged by inflating, deflating and adjusting the air pressure.

[0016] 3. The mattress described in this utility model has a flexible pressure sensor corresponding to each airbag unit, which can comprehensively collect real-time pressure data of different parts of the user's body. By processing the pressure data through a PLC, the inflation / deflation device is further controlled to inflate / depress the airbag units, providing the user with a precise support or massage experience.

[0017] 4. The mattress described in this utility model has upper and lower limb airbag areas configured with different numbers of support units arranged in sequence. Based on PLC programming control, the mattress described in this embodiment can realize different inflation and deflation settings. Compared with the single inflation and deflation function of traditional air mattresses, the mattress described in this utility model can adapt to the usage needs of different patients. For example, patients can control the elbow and foot massage and relaxation when resting. Patients who cannot take care of themselves can set timed inflation and deflation, etc. For users who need to rest in bed for a long time or have difficulty moving, this combination mode can massage different parts of their body, which is beneficial to the patient's recovery. Attached Figure Description

[0018] Figure 1 : Schematic diagram of the overall structure of the partitioned mattress (1);

[0019] Figure 2 : Schematic diagram of the overall structure of the partitioned mattress (2);

[0020] Figure 3 Schematic diagram of the inflation / deflation device.

[0021] Symbol Explanation

[0022] 1-Upper limb airbag area, 2-Lower limb airbag area, 3-Water bladder area, 4-Strip airbag unit, 5-Elbow support airbag unit, 6-Heel support airbag unit, 7-Head support airbag unit, 8-Flexible pressure sensor; 9-Inflation pump, 10-Inflation hose, 11-Suction pump, 12-Suction hose, 13-Solenoid valve, 14-PLC. Detailed Implementation

[0023] It should be noted that:

[0024] 1. Certain terms are used in the specification and claims to refer to specific components. Those skilled in the art will understand that different terms may be used to refer to the same component. This specification and claims do not distinguish components based on differences in terminology, but rather on differences in function. Unless otherwise defined, the technical or scientific terms used in this disclosure should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains.

[0025] 2. TPU, or thermoplastic polyurethane elastomer, boasts advantages such as high strength, high elasticity, wear resistance, and chemical corrosion resistance. It can withstand significant pressure and tension without easily being damaged. Furthermore, TPU products exhibit excellent waterproof and stain-resistant properties, effectively preventing liquid penetration. PVC material offers good flexibility, water resistance, and corrosion resistance, while being relatively inexpensive and widely available. Both materials also possess flame-retardant properties.

[0026] 3. A brief description of flexible pressure sensors is as follows: When subjected to external force, flexible pressure sensors can convert pressure signals into electrical signals such as resistance, current, or capacitance, and reflect the magnitude of the external force through changes in the electrical signal. According to different sensing mechanisms, flexible pressure sensors can be divided into four types: capacitive, piezoresistive, piezoelectric, and triboelectric. Under pressure, changes in the internal structure and dielectric constant of a capacitive pressure sensor affect the capacitance value, and the change in capacitance responds to the applied pressure. Changes in the structure, contact resistance between electrodes, or conductive path of a piezoresistive pressure sensor cause changes in resistance, which are then converted into corresponding electrical signals. Furthermore, the sensing mechanism of a piezoelectric pressure sensor is mainly based on the piezoelectric effect; piezoelectric materials become polarized under pressure, thereby generating free charges on the electrode surface. Triboelectric pressure sensors are based on the coupling effect of triboelectricity and electrostatic induction. When two layers of materials with different triboelectric properties come into contact, different charges accumulate on the surface; this electrostatic process can convert pressure into an electrical signal for output.

[0027] 4. A PLC, or Programmable Logic Controller, is a digital electronic system, specifically a programmable memory that stores instructions for performing logical operations, sequential control, timing, counting, and arithmetic operations. It controls various types of mechanical equipment or production processes through digital or analog inputs and outputs. As a commonly used device, this embodiment does not modify its principle but only uses its existing functions; therefore, its operating principle will not be described in detail here.

[0028] The present invention will now be described in detail with reference to the accompanying drawings and by way of embodiments.

[0029] This embodiment describes a partitioned, modular mattress. The mattress is generally rectangular and includes an air bladder area and a water bladder area 3. The upper and lower surfaces of the air bladder area and the water bladder area 3 are flush, and they are either fixedly connected or detachably connected, for example, by welding, Velcro, zippers, or other methods at the joint surfaces to form a single unit.

[0030] The airbag area includes an upper limb airbag area 1 and a lower limb airbag area 2, which are positioned opposite each other on both sides of the waterbag area 3. When the user lies on the mattress, taking supine sleeping as an example, their upper limbs and torso are located in the upper limb airbag area 1, their waist and buttocks are located in the waterbag area 3, and their lower limbs are located in the lower limb airbag area 2.

[0031] The sacrum and coccyx are high-risk areas for pressure ulcers. The water-filled area 3 can adapt to the user's body curves and adjust the support firmness by the amount of water injected. Therefore, by placing the water-filled area 3 on the user's waist and hips, the pressure on this area can be effectively reduced, the occurrence of pressure ulcers can be reduced, and the patient's recovery can be facilitated.

[0032] Because users vary in height and body proportions, this embodiment does not limit the specific dimensions of the water bladder area 3. However, its size and area should at least cover the user's buttocks to provide effective support. Therefore, this embodiment preferably sets its dimensions to a length of 40cm-60cm and a width of 80cm-100cm. Clearly, most users are in a naturally stretched-out state when resting and / or sleeping, especially patients who need to rest in bed, whose sleeping postures are relatively fixed. Therefore, the mattress described in this embodiment is designed based on the usage habits of most users.

[0033] The airbag area includes the fabric layer and the airbag layer.

[0034] The fabric layer is fitted to the surface of the airbag layer. Those skilled in the art can choose different fabrics according to their needs to provide users with a comfortable user experience.

[0035] The airbag layer is made of thermoplastic elastic materials, such as TPU and PVC, to provide effective support for the user. Thermoplastic elastic materials are soft and have excellent ductility, allowing them to be welded into different shapes. Utilizing the material properties of thermoplastic elastic materials, a single airbag layer can be configured into multiple strip-shaped airbag units 4 by welding, or the strip-shaped airbag units 4 can be fabricated separately and then welded together to form a single airbag. This embodiment does not limit the arrangement of the strip-shaped airbag units 4, but it is preferred that they be arranged sequentially with adjacent sides touching to achieve better support.

[0036] To provide users with a more fitting support and accurately and reasonably adapt to the shape and pressure distribution of different parts of the body, the preferred option is:

[0037] 1. The upper limb airbag area 1 is provided with 8-10 sequentially arranged strip-shaped airbag units 4;

[0038] 2. The upper limb airbag area 1 is also provided with a set of symmetrically arranged elbow support airbag units 5 on its upper surface. The elbow support airbag unit 5 is located on the upper surface of the strip-shaped airbag unit 4, and can be connected to the strip-shaped airbag unit 4 below it by welding or by zipper.

[0039] 3. The lower limb airbag area 2 is provided with 10-12 sequentially arranged strip-shaped airbag units 4;

[0040] 4. The lower limb airbag area 2 is also provided with a set of symmetrically arranged heel support airbag units 6 on its upper surface. The heel support airbag unit 6 is located on the upper surface of the strip-shaped airbag unit 4, and can be connected to the strip-shaped airbag unit 4 below it by welding or by zipper.

[0041] The elbow support airbag unit 5 effectively supports the elbow, and the heel support airbag unit 6 effectively supports the heel. Both are inflated or deflated as needed. This embodiment does not limit the shape of the elbow support airbag unit 5 and the heel support airbag unit 6, but their lengths are adaptively extended, with the elbow support airbag unit 5 designed as a square-shaped groove and the heel support airbag unit 6 as a U-shaped groove. This design reduces pressure on the elbow and heel, preventing pressure sores caused by high pressure in these areas. The heel is one of the areas of greatest pressure when lying supine; the U-shaped heel area provides better support and pressure distribution. In use, the patient places their arm or heel into the corresponding support airbag unit, and by inflating, deflating, and adjusting the air pressure, a massage is performed on the user's arm, calf, and heel.

[0042] 5. The upper limb airbag area 1 is also equipped with a head support airbag unit 7. The appearance and size of the head support airbag unit 7 are similar to a pillow. After inflation, it can provide effective support for the user's head and neck.

[0043] Specifically, the head support airbag unit 7 measures 50cm x 30cm and is designed with a double-layer structure. The upper layer is made of normal pillow material, providing a comfortable pillow feel; the lower layer is an inflatable area that can be adjusted according to the patient's head position and height requirements. Specifically, when the patient needs to lie without a pillow, the air inside the inflatable area can be released, making the patient's head level with the rest of the body; when the patient needs to lie with a pillow, it can be inflated to provide appropriate height support. This design not only meets the patient's different positional needs but also further prevents pressure sores on the head and neck.

[0044] As a preferred embodiment, the mattress described in this embodiment is further provided with a pressure sensing layer, an inflation / deflation device, and a PLC14.

[0045] A pressure-sensing layer is disposed in the airbag area and further disposed between the airbag layer and the fabric layer, including multiple flexible pressure sensors 8. Preferably, each flexible pressure sensor 8 is configured to correspond one-to-one with each airbag unit to comprehensively collect real-time pressure data from different parts of the user's body. The flexible pressure sensors 8 are electrically connected to a PLC 14, transmitting the collected data to the PLC 14.

[0046] The inflation / deflation device includes at least an inflation pump 9, an inflation hose 10, a deflation pump 11, a deflation hose 12, and a solenoid valve 13. Each airbag unit—namely, the strip-shaped airbag unit 4, the elbow support airbag unit 5, the heel support airbag unit 6, and the head support airbag unit 7—is equipped with an inflation hose 10 and a deflation hose 12. To avoid influencing the user, the inflation hose 10 and deflation hose 12 are preferably located on the lower surface of the airbag unit and converge under the mattress. When the mattress is actually in use, such as when placed on a bed board, the hoses are laid out according to the actual usage, and are kept as close to the bed board as possible.

[0047] Both ends of the inflation hose 10 are fixedly connected to the inflation pump 9 and the airbag unit, respectively, and both ends of the de-inflation hose 12 are fixedly connected to the de-inflation pump 11 and the airbag unit, respectively, with the connection principle being no air leakage. The solenoid valve 13 is a one-way solenoid valve, which is installed on each inflation hose 10 and de-inflation hose 12.

[0048] The above is an example of airbag unit inflation and deflation described in this embodiment. It can also be structurally modified according to usage requirements to suit different massage needs. For example, multiple airbag units are arranged in a predetermined layout, and one end of them is connected in sequence through a T-connector to form multiple parallel airbag groups, so that inflation and deflation massage is performed on the airbag group as a unit.

[0049] The air pump 9, air pump 11, and solenoid valve 13 are all electrically connected to the PLC 14 and operate according to the control instructions of the PLC 14, such as opening or closing. The PLC described in this embodiment can preferably be a Siemens SIMATIC S7-200 SMART small PLC.

[0050] Based on the detection data transmitted by the flexible pressure sensor 8 and the set pressure threshold, the opening and closing of the solenoid valve 13 is controlled by the PLC 14. In conjunction with the inflation / deflation operations of the air pump 9 and the deflation pump 11, each airbag unit can be accurately inflated and deflated, so that the airbag unit can provide a comfortable and reasonable support effect for the user. Through regular inflation and deflation operations, such as alternating inflation and deflation of adjacent airbag units, massage force can be applied to the patient's whole body or local areas, promoting blood circulation and effectively preventing pressure injuries during surgery. It is especially suitable for patients who have been undergoing surgery for a long time or who are bedridden.

[0051] Based on PLC programming control of the inflation and deflation pumps corresponding to different airbag units, the mattress described in this embodiment can achieve different inflation and deflation settings. For example, it can be set to synchronously or independently inflate and deflate the upper / lower limb airbag area and the elbow / heel support airbag unit, set to timed inflation and deflation of each airbag unit, and set manual adjustment by the user. Therefore, compared with the single inflation and deflation function of traditional air mattresses, the mattress described in this embodiment can adapt to the usage needs of different patients. For example, patients can control the elbow and foot massage and relaxation while resting, and patients who cannot take care of themselves can set timed inflation and deflation, etc. Technicians can realize the above functions through PLC programming. This embodiment does not make any method or structural improvements to the PLC. The control effect of automation or manual control can be achieved by using its built-in programming function. As a mature programming control technology, this embodiment will not elaborate further.

[0052] The water bladder area 3 described in this embodiment can be heated or kept at a constant temperature using an electric heating system, a water tank heating system, etc. As a commonly used heating and temperature control method, this embodiment uses it as a preferred setting and will not be described in detail here.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A modular mattress, characterized in that, It includes an airbag area and a waterbag area, which are fixedly or detachably connected as a whole; the airbag area includes an upper limb airbag area and a lower limb airbag area, which are arranged opposite each other on both sides of the waterbag area.

2. The partitioned, modular mattress according to claim 1, characterized in that, The airbag area includes an airbag layer and a fabric layer that is attached to the surface of the airbag layer; the airbag layer is composed of multiple strip-shaped airbag units connected side by side.

3. A modular mattress according to claim 2, characterized in that, The airbag area also includes an elbow support airbag unit disposed on the upper surface of the upper limb airbag area and a heel support airbag unit disposed on the upper surface of the lower limb airbag area; the elbow support airbag unit is configured as a square groove and the heel support airbag unit is configured as a U-shaped groove.

4. A modular mattress according to claim 2, characterized in that, The airbag area also includes a head support airbag unit disposed on the upper surface of the upper limb airbag area. The head support airbag unit is configured as a double-layer structure, including an upper pillow material area and a lower inflation area.

5. A modular mattress according to claim 2, characterized in that, The mattress is also equipped with a pressure sensing layer, an inflation / deflation device, and a PLC; The pressure sensing layer is disposed in the airbag area and includes multiple flexible pressure sensors; The inflation / deflation device includes an inflation pump, an inflation hose, a suction pump, a suction hose, and a solenoid valve. The two ends of the inflation hose are fixedly connected to the inflation pump and the airbag unit, respectively. The two ends of the suction hose are fixedly connected to the suction pump and the airbag unit, respectively. The solenoid valve is installed on the inflation hose and the suction hose, respectively. The flexible pressure sensor, air pump, air extraction pump, and solenoid valve are all electrically connected to the PLC.

6. A partitioned, modular mattress according to claim 2, characterized in that, Multiple airbag units are arranged in a predetermined layout, with one end connected sequentially via a T-connector to form multiple parallel airbag groups.

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