An intelligent sensing pressure-relieving mattress that can collect patient pressure data
By designing multi-point distributed sensors and a sliding limit structure on the pressure-relieving mattress, the problems of uneven sensor distribution and difficulty in replacement in existing pressure-relieving mattresses are solved, achieving the effects of precise monitoring and simplified maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NEIJIANG SECOND PEOPLES HOSPITAL
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-07
AI Technical Summary
Existing pressure-reducing mattresses lack precision in the placement of pressure sensors, making sensor replacement and maintenance complex and unsafe. They also lack effective sliding component limiting structures, which affects the device's efficiency and lifespan.
A multi-point distributed pressure sensor was designed, which combines a slide, slide plate, slide bar and limit bar structure to achieve precise monitoring of the patient's whole body pressure. The spring and cross bolt structure provides buffering and limiting, simplifies the sensor replacement process and avoids misalignment or detachment of the sliding components.
It enables precise monitoring of the patient's whole-body pressure, improves data accuracy and device stability, simplifies the sensor replacement process, extends device lifespan, and improves maintenance efficiency.
Smart Images

Figure CN224461923U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of intelligent mattress technology, specifically relating to an intelligent sensor pressure-reducing mattress that can collect patient pressure data. Background Technology
[0002] Patients who are bedridden for extended periods are prone to pressure sores due to continuous localized pressure. Therefore, pressure-reducing mattresses are widely used in clinical nursing, including intensive care, geriatric care, and postoperative recovery, to alleviate tissue damage caused by prolonged pressure on specific parts of the body. Existing pressure-reducing mattresses mostly use airbag inflation and deflation or elastic materials to distribute pressure, and some structures also integrate simple pressure sensors to monitor the pressure on the patient's body surface. However, in practical use, existing devices generally suffer from the following technical problems:
[0003] First, the existing mattress structure usually places pressure sensors in a relatively concentrated manner, which cannot achieve precise sensing of pressure in all areas of the patient's body. Moreover, the replacement and maintenance process after the sensors are damaged is complicated, often requiring the entire mattress to be disassembled or professional intervention, which seriously affects the continuous use efficiency of the device.
[0004] Secondly, during device maintenance, if the sliding structure or sensor assembly needs to be removed from the mattress for replacement, since there is direct contact between the mattress surface material and the internal top plate, without an effective lifting and cushioning structure, the fabric may snag, get stuck, or even damage the mattress body, affecting its subsequent service life.
[0005] Furthermore, to prevent the slide bar structure from misaligning or falling off during use or maintenance, there is currently a lack of a structural solution that provides limit protection in the sliding track, which cannot ensure operational safety and device stability during maintenance. Utility Model Content
[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide an intelligent sensor pressure-reducing mattress that can collect patient pressure data. This intelligent sensor pressure-reducing mattress device has a reasonable structure, wide sensing coverage, is easy to replace and maintain, and has buffering and limiting functions during sliding operation, thereby improving the practicality and reliability of the device in clinical nursing.
[0007] To achieve the above objectives, the present invention provides the following technical solution: an intelligent sensor pressure-reducing mattress capable of collecting patient pressure data, comprising a base plate and a sponge cloth, wherein the base plate is hollow inside with an open top, the lower surface inside the base plate is uniformly provided with grooves, and one side of the base plate is uniformly provided with an outlet, the outlet being positioned corresponding to the groove, and the sponge cloth covering the top of the base plate;
[0008] A slide plate is slidably installed inside the slide groove. An installation plate is evenly fixed on the upper surface of the slide plate. A vertical cylinder is provided on the top of the installation plate. A slide rod is slidably installed on the upper part of the vertical cylinder. A top plate is provided on the top of the slide rod. A pressure sensor is installed on the upper surface of the top plate. Multiple pressure sensors abut against the lower surface of the sponge cloth.
[0009] Furthermore, a liftable curtain is provided on one side of the sponge fabric, which covers multiple exits. The two sides of the liftable curtain are fixed to the sponge fabric with Velcro, and the bottom of the sponge fabric is sewn to the outside of the base plate.
[0010] Furthermore, vertical plates are fixed above both ends of the skateboard. After the skateboard is installed in place, the front vertical plate is flush with the outer surface of the base plate. The lower surface of the front vertical plate is provided with an upper semi-circular groove.
[0011] Furthermore, a lower semi-circular groove is evenly formed on the front surface of the base plate. The lower semi-circular groove corresponds to the outlet position. The lower semi-circular groove and the upper semi-circular groove are combined to form a circular structure. A limit rod is rotatably installed inside the lower semi-circular groove.
[0012] Furthermore, open track grooves are symmetrically provided on both sides of the vertical cylinder, and the open track grooves are vertically arranged. A spring is placed inside the vertical cylinder, and the spring is in contact with the bottom surface of the slide rod.
[0013] Furthermore, the slide bar surface is symmetrically equipped with horizontal bolts, and the horizontal bolts on both sides pass through the open track grooves on both sides respectively.
[0014] Furthermore, a rotating shaft is rotatably installed between the two upright plates. The rotating shaft is located on one side of the upright cylinder, and a knob is provided at the front end of the rotating shaft. The knob is located on the outside of the bottom plate, and an extrusion plate is provided on the surface of the rotating shaft. The extrusion plate is in contact with a plurality of the horizontal bolts.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention achieves multi-point real-time monitoring of the force applied to different parts of the patient's body by setting multiple grooves on the base plate and installing a sliding plate, a vertical cylinder, a sliding rod, a top plate, and a pressure sensor in the grooves. This overcomes the problems of uneven sensor placement and limited monitoring range in existing mattresses. The pressure sensor directly abuts against the underside of the sponge fabric, improving the sensitivity and accuracy of pressure sensing and meeting the needs of clinical nursing for accurate collection of patient positional force data.
[0017] This invention incorporates a spring structure inside the mattress cylinder. Through the cooperation of the spring and the sliding rod, the top plate automatically rises and lifts the sponge fabric when not under stress, thereby keeping the mattress surface flat and avoiding long-term pressure caused by mattress collapse, effectively preventing the risk of pressure sores. When the patient gets off the bed or changes position, the spring automatically returns to its original position and lifts the top plate, always maintaining the surface tension of the mattress, thus solving the problem of insufficient cushioning and rebound capacity of traditional pressure-relieving mattresses.
[0018] This utility model sets up upright plates at both ends of the slide plate, and forms a complete circular hole structure by the upper semi-circular groove at the lower end of the upright plate and the lower semi-circular groove on the front side of the base plate. After the limiting rod is rotated and installed, it plays a limiting role for the slide plate, preventing the slide plate from being misaligned or sliding out during use, thus improving the safety and stability of the device operation and solving the problem of structural loosening caused by the lack of an effective sliding component limiting structure in the prior art.
[0019] This utility model uses a liftable curtain to cover the bottom plate outlet. The curtain is fixed with Velcro, making it easy to disassemble and repair. When a single pressure sensor is damaged, the curtain can be lifted and the limiting structure released, and the slide can be pulled out to replace the sensor locally. There is no need to disassemble the entire device, which significantly improves the convenience of maintenance and avoids the phenomenon of long-term downtime of the device due to the complicated operation of replacing sensors in the prior art.
[0020] This invention features open track grooves on both sides of the vertical cylinder, with symmetrical horizontal bolts on the outside of the slide rod penetrating the track grooves to prevent the slide rod from rotating or falling off during vertical movement, thus further improving the stability of the device. When the slide plate needs to be replaced, rotating the external knob drives the rotating shaft, causing the pressing plate on the rotating shaft to press the horizontal bolts down, thereby driving the slide rod down as a whole, so that the top plate is separated from the sponge cloth, avoiding material damage problems such as snagging and jamming during the removal of the slide plate, effectively extending the service life of the device and improving maintenance efficiency. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is a schematic diagram of the internal structure of the base plate of this utility model;
[0023] Figure 3 This is a schematic diagram of the base plate structure of this utility model;
[0024] Figure 4 This is a schematic diagram of the skateboard structure of this utility model;
[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the skateboard of this utility model;
[0026] Figure 6 This is a schematic diagram of the mounting structure of the fixed cylinder and sensor of this utility model.
[0027] The components represented by each number in the attached diagram are listed below: 1. Base plate; 11. Slide groove; 12. Outlet; 13. Lower semi-circular concave surface; 14. Limiting rod; 2. Sponge cloth; 21. Liftable curtain; 3. Slide plate; 31. Upright plate; 32. Mounting groove; 4. Mounting plate; 41. Vertical cylinder; 42. Open track groove; 5. Slide rod; 51. Horizontal bolt; 52. Top plate; 6. Spring; 7. Pressure sensor; 8. Rotating shaft; 81. Knob; 82. Extrusion plate. Detailed Implementation
[0028] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0029] refer to Figures 1-6 As shown, an intelligent sensor-based pressure-reducing mattress capable of collecting patient pressure data includes a base plate 1 and a sponge fabric 2. The base plate 1 is hollow inside with an open top. Slide grooves 11 are evenly distributed on the lower inner surface of the base plate 1, and outlets 12 are evenly distributed on one side of the base plate 1, corresponding to the positions of the slide grooves 11. The sponge fabric 2 covers the top of the base plate 1. The base plate 1 is made of rigid engineering plastic, providing good structural support. A sliding plate 3, made of aluminum alloy, is slidably installed inside the slide grooves 11 for mounting and supporting the sensor structure. Mounting plates 4, made of stainless steel, are evenly fixed to the upper surface of the sliding plate 3 for stability. A fixed support cylinder 41 is provided on the top of the mounting plate 4. The cylinder 41 is made of rigid plastic and has a hollow cylindrical structure. A sliding rod 5 is slidably installed inside the upper part of the cylinder 41. The sliding rod 5 can slide vertically inside the cylinder 41 to adjust the height of the top plate 52. The top plate 52 is provided on the top of the sliding rod 5. The top plate 52 is made of foam aluminum and has a buffering and support function. A pressure sensor 7 is installed on the upper surface of the top plate 52. The pressure sensor 7 is a multi-point distributed resistive sensor. Multiple pressure sensors 7 abut against the lower surface of the sponge cloth 2, which can collect the force on different parts of the patient in real time and improve the coverage and sensitivity of pressure monitoring.
[0030] refer to Figure 1As shown, a liftable curtain 21 is provided on one side of the sponge fabric 2, which covers multiple outlets 12. The two sides of the liftable curtain 21 are fixed to the sponge fabric 2 with Velcro, and the bottom of the sponge fabric 2 is sewn to the outside of the base plate 1. The sponge fabric 2 is made of high-elasticity composite fiber fabric, which has good breathability and comfort. The liftable curtain 21 is made of the same material and has a certain degree of flexibility. It can be quickly installed and removed with Velcro, which makes it convenient for maintenance personnel to check and maintain the pressure sensor 7. The bottom of the sponge fabric 2 is sewn to the edge of the base plate 1 with industrial sewing technology, so that the surface of the mattress is stably attached to the top of the base plate 1, ensuring the stability and comfort of the patient during use, and providing a support basis for the accurate collection of sensor data.
[0031] refer to Figures 2-4 As shown, vertical plates 31 are fixed above both ends of the slide plate 3. After the slide plate 3 is installed in place, the front plate 31 is flush with the outer surface of the base plate 1. The lower surface of the front plate 31 is provided with an upper semi-circular groove 32. The plate 31 is injection molded from engineering plastic and has a certain impact resistance and stability. The upper semi-circular groove 32 is matched with the lower semi-circular groove 13 on the base plate 1 to install a limiting structure, so as to prevent the slide plate 3 from shifting position or sliding out of the base plate 1 during sliding or maintenance, thereby improving the safety and structural stability of the device.
[0032] refer to Figure 2 As shown, a lower semi-circular groove 13 is evenly provided on the front surface of the base plate 1. The lower semi-circular groove 13 corresponds to the position of the outlet 12. The lower semi-circular groove 13 and the upper semi-circular groove 32 are combined to form a circular structure. A limit rod 14 is rotatably installed inside the lower semi-circular groove 13. The limit rod 14 adopts a rotary structure design, which can be manually rotated to achieve engagement or disengagement with the upper semi-circular groove 32. The limit rod 14 is made of high-strength stainless steel rod, with a locking structure at one end and a rotating handle at the other end, which can realize the limit control of the slide plate 3. This facilitates the quick release of the slide plate 3 and replacement operation when the sensor is damaged, improves the equipment maintenance efficiency and operational safety, and solves the problem of difficult sensor replacement in the background technology.
[0033] refer to Figure 5 As shown, open track grooves 42 are symmetrically opened on both sides of the upright cylinder 41. The open track grooves 42 are vertically set, and a spring 6 is placed inside the upright cylinder 41. The spring 6 is in contact with the bottom surface of the slide rod 5. The open track groove 42 adopts a U-shaped through structure, which allows the horizontal bolt 51 to move to a limited extent in the vertical direction. The spring 6 is a high-carbon steel compression spring, which provides an upward restoring force to support the slide rod 5 to lift the top plate 52 in the non-stressed state, so that the sponge cloth 2 remains flat, thereby effectively avoiding the risk of pressure sores caused by the mattress sinking. This structure makes up for the problem of insufficient cushioning capacity in traditional mattresses, and at the same time provides elastic support for the height adjustment of the slide rod 5.
[0034] refer to Figure 5 and Figure 6 As shown, the slide bar 5 is symmetrically equipped with horizontal bolts 51, and the horizontal bolts 51 on both sides pass through the open track grooves 42 on both sides respectively; the horizontal bolts 51 are made of stainless steel rods and have limit rings at the ends to prevent the horizontal bolts from coming out of the track grooves 42; the cooperation between the horizontal bolts 51 and the open track grooves 42 allows the slide bar 5 to be forced to move down when the height needs to be adjusted or the slide plate 3 needs to be disassembled, providing sufficient space for the smooth pull-out of the slide plate 3, and solving the problem of snagging or jamming caused by structural interference in the background art.
[0035] refer to Figure 5 and Figure 6 As shown, a rotating shaft 8 is rotatably installed between two upright plates 31. The rotating shaft 8 is located on one side of the upright cylinder 41, and a knob 81 is provided at the front end of the rotating shaft 8. The knob 81 is located on the outside of the bottom plate 1. A pressing plate 82 is provided on the surface of the rotating shaft 8, and the pressing plate 82 contacts multiple horizontal bolts 51. The rotating shaft 8 is made of carbon steel with an electroplated anti-rust treatment. The knob 81 has an anti-slip texture design, which makes it easy for the operator to rotate with one hand. When the rotating shaft 8 rotates, it drives the pressing plate 82 to rotate and press down on the horizontal bolts 51, so that the horizontal bolts 51 push the slide rod 5 to move down as a whole, thereby driving the top plate 52 down, and then pressing down the lower surface of the sponge cloth 2, so as to avoid snagging or jamming due to friction between the top plate 52 and the sponge cloth 2 during the removal of the sliding plate 3. This structure effectively improves maintenance efficiency and mattress lifespan, and is a targeted improvement to the problems of "difficult maintenance" and "material damage" in the background technology.
[0036] The working principle of this utility model is as follows: the bottom edge of the sponge cloth 2 is sewn and fixed to the outer surface of the base plate 1, while the liftable curtain 21 placed on the front covers multiple outlets 12 and is fixed at both ends by Velcro. The patient lies on the upper surface of the sponge cloth 2, and multiple pressure sensors 7 are used to detect the pressure at different positions. At the same time, the spring 6 can make the top plate 52 have a buffering force. Therefore, when there is no force, the slide bar 5 is placed at the top of the stroke to lift the sponge cloth 2 and keep it flat. Meanwhile, the horizontal bolt 51 is placed inside the upper part of the open track groove 42 to prevent it from falling off.
[0037] When a single pressure sensor 7 is damaged, first lift the hinged curtain 21 to expose multiple upright plates 31, and rotate the corresponding limiting rod 14 to disengage the limiting rod 14 from the upper semi-circular groove 32. At this time, the slide plate 3 can be pulled as a whole. However, when pulling, the top plate 52 is at the top of the stroke and will rub against the sponge cloth 2, causing snagging or jamming. At this time, the knob 81 can be rotated to drive the rotating shaft 8 to rotate, and then the pressing plate 82 will move multiple horizontal bolts 51 downward, so that the slide rod 5 moves downward inside the upright cylinder 41, thereby reducing the height of the top plate 52 to facilitate the pulling of the slide plate 3. Pulling out the slide plate 3 allows the pressure sensor 7 at a single position to be replaced and maintained, thereby improving the convenience of maintenance.
[0038] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A smart sensor-based pressure-reducing mattress capable of collecting patient pressure data, comprising a base plate (1) and a sponge fabric (2), characterized in that: The bottom plate (1) is hollow inside with an open top. The bottom surface of the bottom plate (1) is evenly provided with grooves (11). The bottom plate (1) is evenly provided with outlets (12) on one side. The outlets (12) are corresponding to the grooves (11). The sponge cloth (2) covers the top of the bottom plate (1). A slide plate (3) is slidably installed inside the slide groove (11). An installation plate (4) is evenly fixed on the upper surface of the slide plate (3). A vertical cylinder (41) is provided on the top of the installation plate (4). A slide rod (5) is slidably installed on the upper part of the vertical cylinder (41). A top plate (52) is provided on the top of the slide rod (5). A pressure sensor (7) is installed on the upper surface of the top plate (52). Multiple pressure sensors (7) abut against the lower surface of the sponge cloth (2).
2. The intelligent sensor-based pressure-reducing mattress capable of collecting patient pressure data according to claim 1, characterized in that: A liftable curtain (21) is provided on one side of the sponge cloth (2), which covers multiple outlets (12). The two sides of the liftable curtain (21) are fixed to the sponge cloth (2) by Velcro. The bottom of the sponge cloth (2) is sewn to the outside of the base plate (1).
3. The intelligent sensor-based pressure-reducing mattress capable of collecting patient pressure data according to claim 1, characterized in that: The slide plate (3) has vertically fixed plates (31) at both ends. After the slide plate (3) is installed, the front plate (31) is flush with the outer surface of the base plate (1). The lower surface of the front plate (31) is provided with an upper semi-circular groove (32).
4. The intelligent sensor-based pressure-reducing mattress capable of collecting patient pressure data according to claim 3, characterized in that: The bottom plate (1) has a uniformly provided lower semi-circular groove (13) on the front surface. The lower semi-circular groove (13) corresponds to the position of the outlet (12). The lower semi-circular groove (13) and the upper semi-circular groove (32) are combined to form a circular structure. A limit rod (14) is rotatably installed inside the lower semi-circular groove (13).
5. The intelligent sensor-based pressure-reducing mattress capable of collecting patient pressure data according to claim 3, characterized in that: The vertical tube (41) has symmetrically opened open track grooves (42) on both sides. The open track grooves (42) are vertically arranged. A spring (6) is placed inside the vertical tube (41). The spring (6) is in contact with the bottom surface of the slide rod (5).
6. The intelligent sensing pressure-reducing mattress capable of collecting patient pressure data according to claim 5, characterized in that: The slide bar (5) is symmetrically fitted with horizontal bolts (51), and the horizontal bolts (51) on both sides pass through the open track grooves (42) on both sides respectively.
7. The intelligent sensor-based pressure-reducing mattress capable of collecting patient pressure data according to claim 6, characterized in that: A rotating shaft (8) is rotatably installed between the two upright plates (31). The rotating shaft (8) is located on one side of the upright cylinder (41). A knob (81) is provided at the front end of the rotating shaft (8). The knob (81) is located on the outside of the bottom plate (1). An extrusion plate (82) is provided on the surface of the rotating shaft (8). The extrusion plate (82) is in contact with a plurality of horizontal bolts (51).