Intelligent prone position self-adaptive decompression bed

Abstract

The invention discloses an intelligent prone position self-adaptive decompression bed, and relates to the technical field of medical instruments. Comprising a supporting bottom plate and a decompression bed body connected with the supporting bottom plate, and a face supporting pillow and a supporting decompression rod array are arranged on the decompression bed body; the support decompression rod array is arranged on the decompression rod mother plate in a honeycomb array, and comprises a chest decompression rod array and an abdomen decompression rod array; the chest pressure reduction rod array and the abdomen pressure reduction rod array each comprise a main supporting pressure reduction rod module and auxiliary supporting pressure reduction rod modules symmetrically arranged on the two sides of the main supporting pressure reduction rod module, and the main supporting pressure reduction rod modules stretch out and draw back periodically with two supporting pressure reduction rod assemblies as a set. And the auxiliary supporting pressure-reducing rod modules periodically stretch and retract by taking one supporting pressure-reducing rod assembly as a group. According to the decompression bed provided by the invention, the skin of the contact part can be periodically exposed under the condition of not influencing the prone position limb support, air exchange is carried out, and pressure sores, bedsores and infection risks caused by long-time extrusion and non-ventilation are relieved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an intelligent prone position adaptive decompression bed. Background Art

[0002] Prone ventilation is a physiological protective ventilation method that uses the prone position to improve the patient's oxygenation, reduce hypercapnia, and improve right heart function. The collapse of the alveoli in the gravity-dependent area of ​​patients with acute respiratory distress syndrome (ARDS) will lead to heterogeneity of blood and gas in the lungs. When the patient is in the supine position, the upper part of the lungs is more ventilated and less blood flow, and the lower part is less ventilated and more blood flow. This situation is reversed in the prone position, making the gas and blood distribution more even. ARDS patients have more ventilation in the upper part of the lungs, and the alveoli are over-expanded, and the corresponding dead space rate will increase. After prone ventilation, the lung ventilation and blood flow are in a more uniform state than before, reducing the dead space rate, followed by an improvement in respiratory efficiency. The patient breathes more smoothly and without resistance, accompanied by a decrease in CO2, thereby improving hypercapnia. In addition, the sagging area of ​​ARDS patients is in a state of consolidation, and the tidal volume of the ventilator is directed to the area with good alveolar compliance and low resistance, so the normal alveoli will be over-expanded, while the collapsed alveoli will not be opened. This ventilation heterogeneity will lead to ventilator-associated lung injury. In addition, ARDS patients will have pulmonary capillary constriction due to hypoxia, and prone ventilation improves the patient's oxygenation, which can also reduce pulmonary vascular resistance.

[0003] Prone ventilation is an effective and necessary treatment and protection strategy for patients with such lung diseases. However, ordinary hospital beds have too flat a surface, which causes the pressure generated by gravity to be distributed to other parts of the body, making it difficult to achieve effective compression on the patient's lungs. In addition, the existing prone decompression beds have a single support structure, and the air in the contact area is not circulated. If the patient lies prone for a long time, bedsores and infections will occur in the contact area. Moreover, the height of the support is fixed and cannot be adjusted adaptively, requiring medical staff to manually adjust the height; there is no support structure at the facial position, which is not ergonomic, may cause neck joint strain, and is inconvenient to connect the mask oxygen tube. In response to the above problems, the present invention proposes an intelligent prone adaptive decompression bed. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent prone position adaptive decompression bed to solve the above problems.

[0005] To achieve the above-mentioned object, the present invention provides an intelligent prone position adaptive decompression bed, comprising a support base plate and a decompression bed body connected to the support base plate through a lifting device, wherein the decompression bed body is provided with a facial support pillow and a support decompression rod array; The support decompression rod array is arranged in a honeycomb array on the decompression rod motherboard, including a chest decompression rod array and an abdomen decompression rod array; the chest decompression rod array and the abdomen decompression rod array both include a main support decompression rod module and auxiliary support decompression rod modules symmetrically arranged on both sides of the main support decompression rod module, the main support decompression rod module is a group of two support decompression rod assemblies that periodically expand and contract, and the auxiliary support decompression rod module is a group of one support decompression rod assembly that periodically expand and contract.

[0006] Preferably, the supporting decompression rod assembly comprises a base, a cylinder and a cylinder telescopic rod arranged above the base, and a supporting member is arranged above the cylinder telescopic rod.

[0007] Preferably, the support member includes a contact shell and a contact cover connected to the top of the contact shell, and the contact shell is provided with a patch temperature sensor, a contact pressure sensor arranged below the patch temperature sensor, and a fan arranged below the contact pressure sensor.

[0008] Preferably, ventilation holes are provided on the side and bottom of the contact shell, and ventilation holes are also provided on the contact cover.

[0009] Preferably, a side of the decompression bed body away from the facial support pillow is connected to an electric folding mattress via a rotating shaft.

[0010] Preferably, the facial support pillow is traversed in a cross shape on all sides to facilitate placement of a mask and an oxygen hose.

[0011] Preferably, a knee positioning pad is further provided on the decompression bed body, and the bottom of the knee positioning pad is bonded and connected to the decompression bed body, so as to facilitate the adjustment of the position according to the patient's height.

[0012] Preferably, universal wheels are provided at the four corners of the bottom end of the supporting base plate.

[0013] Therefore, the present invention provides an intelligent prone position adaptive decompression bed, which has the following advantages over the existing decompression bed: 1. The support and decompression rods arranged in a honeycomb array are used to support the chest and abdomen. Gaps are left between adjacent decompression rods to increase the air contact area on the contact part. The microcomputer controls the support and decompression rods to expand and contract periodically and orderly, so that the skin of the contact part is regularly exposed without affecting the support of the prone limbs, so as to exchange air and alleviate the risks of pressure sores, bedsores and infection caused by long-term compression and lack of ventilation of a single part.

[0014] 2. The three-dimensional structural design of the support can provide sufficient support force to prevent excessive deformation of the pressure-bearing part. The ventilation holes can ensure internal air exchange. The microcomputer can automatically start and stop the fan and control the air volume through PWM and temperature control algorithm according to the data of the patch temperature sensor, thereby alleviating complications caused by long-term contact between the support component and the patient.

[0015] 3. The facial support pillow is cross-shaped all around, which not only supports the head, keeps the patient in a healthy prone position, but also facilitates the patient to wear a mask and place the gas pipeline.

[0016] 4. The motor-driven shaft can drive the electric folding mattress to adjust the bending angle, which is convenient for leg placement and improves comfort.

[0017] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of an intelligent prone position adaptive decompression bed of the present invention; Figure 2 It is a schematic diagram of the overall main structure of an intelligent prone position adaptive decompression bed of the present invention; Figure 3 It is a structural schematic diagram of a supporting decompression rod array of an intelligent prone position adaptive decompression bed of the present invention; Figure 4 It is a schematic diagram of the overall structure of a support rod decompression assembly of an intelligent prone position adaptive decompression bed of the present invention; Figure 5 It is a schematic diagram of the internal structure of a support rod decompression assembly of an intelligent prone position adaptive decompression bed of the present invention; Figure 6 The schematic diagram of the overall system workflow is as follows; Reference numerals 1-support base plate; 2-universal wheel; 3-lifting device; 4-decompression bed body; 5-face support pillow; 6-support decompression rod array; 7-chest decompression rod array; 8-abdomen decompression rod array; 9-decompression rod motherboard; 10-first chest main support decompression rod module; 11-second chest main support decompression rod module; 12-third chest main support decompression rod module; 13-first abdomen main support decompression rod module; 14-second abdomen main support decompression rod module; 15-third abdomen main support decompression rod module; 16-chest auxiliary support decompression rod module; 17-abdomen auxiliary support decompression rod module; 18-support decompression rod assembly; 19-base; 20-cylinder; 21-cylinder telescopic rod; 22-support; 23-contact shell; 24-contact cover; 25-chip temperature sensor; 26-contact pressure sensor; 27-fan; 28-ventilation hole; 29-electric folding mattress; 30-knee positioning pad. DETAILED DESCRIPTION

[0019] The following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] Example like Figure 1-2 As shown, the present embodiment provides an intelligent prone adaptive decompression bed, comprising a supporting base plate 1 and a decompression bed body 4, an electric cylinder 20 lifting device 3 is arranged between the supporting base plate 1 and the decompression bed body 4, and the decompression bed body is lifted and lowered by ±30cm in the longitudinal direction through electric hydraulics; universal wheels 2 are arranged at the four corners of the bottom end of the supporting base plate 1, so as to facilitate moving the decompression bed to a suitable position according to actual needs.

[0022] The decompression bed body 4 is provided with a facial support pillow 5, a support decompression rod array 6 and a knee positioning pad 30; the side of the decompression bed body 4 away from the facial support pillow 5 is connected to an electric folding mattress 29 through a rotating shaft, and the rotating shaft is driven by a motor to adjust the bending angle from 0 to -30°, which is convenient for leg placement; the facial support pillow 5 is a soft pillow wrapped in artificial leather and filled with sponge, and is pierced in a cross shape on all sides, which plays a role in supporting the head and is convenient for placing or passing a mask and an oxygen hose; the knee positioning pad 30 is a concave soft cushion wrapped in artificial leather and filled with sponge. The concave surface is used to place the patient's knees to relieve pressure, and there is a "magic patch" at the bottom adhered to the surface of the decompression bed body 4, and the position can be adjusted according to the patient's height.

[0023] like Figure 3 As shown, the hexagonal support decompression rod array 6 is arranged in a honeycomb array on the decompression rod motherboard 9, including a chest decompression rod array 7 and an abdominal decompression rod array 8 for supporting the chest and abdomen respectively. The chest decompression rod array 7 and the abdominal decompression rod array 8 both include a main support decompression rod module and auxiliary support decompression rod modules symmetrically arranged on both sides of the main support decompression rod module. The main support decompression rod module is a group of two support decompression rod assemblies 18 that are periodically retracted and retracted, and the auxiliary support decompression rod module is a group of one support decompression rod assembly 18 that is periodically retracted and retracted. Gaps are left between adjacent decompression rod assemblies to increase air contact on the surface of the contact area and reduce the risk of bedsores. The hexagonal honeycomb arrangement structure can meet the full coverage of the entire chest width and length, while taking into account the air circulation between adjacent decompression rods. The modular support decompression rod design can increase or decrease the number of support decompression rods as needed to meet a variety of contact area requirements.

[0024] The pressure relief rod motherboard 9 is placed directly below the pressure relief bed body 4. The motherboard can meet the power supply requirements of the support pressure relief rod array 6. The support pressure relief rod assembly 18 can be added or removed as needed. The microcomputer and sensor interface are located on the board, which can receive the sensor data on each support pressure relief rod assembly 18. In addition, the microcomputer on the motherboard controls each support pressure relief rod assembly 18 to automatically and periodically extend and retract, so that the array can be extended and retracted periodically and orderly. The maximum extension amount of a single support pressure relief rod is 15cm, which allows the skin of the contact part to be regularly exposed without affecting the support of the prone limbs, so as to exchange air, relieve squeezing and reduce the risk of bedsores.

[0025] In this embodiment, the chest decompression rod array 7 uses one support decompression rod assembly 18 as the smallest unit, and adopts 7*2 support decompression rod assemblies 18 to be arranged in a symmetrical manner along the center line. The first chest main support decompression rod module 10, the second chest main support decompression rod module 11, and the third chest main support decompression rod module 12 are respectively grouped with two support decompression rod assemblies 18 to periodically retract. After the patient lies in a prone position, the first chest main support decompression rod module 10 is temporarily retracted for about 3 minutes. At this time, the second chest main support decompression rod module 11 and the third chest main support decompression rod module 12 are periodically retracted. The third chest main support decompression rod module 12 is in the support position to bear pressure. After 3 minutes, the first chest main support decompression rod module 10 returns to the support position to continue to contact the skin, and the second chest main support decompression rod module 11 temporarily retracts for about 3 minutes. At this time, the first chest main support decompression rod module 10 and the third chest main support decompression rod module 12 are in the support position to bear pressure. After another 3 minutes, the second chest main support decompression rod module 11 returns to the support position to continue to contact the skin, and the third chest main support decompression rod module 12 temporarily retracts for about 3 minutes, and so on. The chest auxiliary support decompression rod module 16 is periodically extended and retracted with one support decompression rod assembly 18 as a group, but it is ensured that the total number of all support decompression rod assemblies 18 in the chest decompression rod array in the support position is not less than 11.

[0026] The abdominal decompression rod array 8 uses a support decompression rod assembly 18 as the smallest unit, and adopts 5*2 support decompression rod assemblies 18 to be arranged in a symmetrical manner along the center line. The first abdominal main support decompression rod module 13, the second abdominal main support decompression rod module 14 and the third abdominal main support decompression rod module 15 are respectively grouped with two support decompression rod assemblies 18 to periodically retract. After the patient lies in a prone position, the first abdominal main support decompression rod module 13 is temporarily retracted for about 3 minutes. At this time, the second abdominal main support decompression rod module 14 and the third abdominal main support decompression rod module 15 are retracted periodically. The first main support decompression rod module 15 is in the support position to bear pressure. After 3 minutes, the first main support decompression rod module 13 of the abdomen returns to the support position to continue to contact the skin. The second main support decompression rod module 14 of the abdomen temporarily retracts for about 3 minutes. At this time, the first main support decompression rod module 13 of the abdomen and the third main support decompression rod module 15 of the abdomen are in the support position to bear pressure. After another 3 minutes, the second main support decompression rod module 14 of the abdomen returns to the support position to continue to contact the skin. The third main support decompression rod module 15 temporarily retracts for about 3 minutes, and so on. The abdominal auxiliary support decompression rod module 17 is periodically extended and retracted with one support decompression rod assembly 18 as a group, but it is ensured that the total number of all support decompression rod assemblies 18 of the abdominal decompression rod array in the support position is not less than 7.

[0027] like Figure 4As shown, the support pressure relief rod assembly 18 includes a base 19, an electric cylinder 20 and a stainless steel cylinder telescopic rod 21 arranged above the base 19, and a support member 22 is arranged above the cylinder telescopic rod 21. The cylinder stores compressed gas for lifting and lowering the cylinder telescopic rod 21, and the maximum telescopic height is 15cm; the support member 22 is formed by a silicone 3D printing process and is designed as an equilateral hexagonal structure. While increasing the contact surface, it can also reduce the interference between adjacent pressure relief rods and increase space utilization. There are multiple ventilation holes 28 on the surface, and the internal three-dimensional air duct design increases the contact surface and internal ventilation efficiency while ensuring sufficient support strength.

[0028] like Figure 5 As shown, the support member 22 includes a contact shell 23 and a contact cover 24 connected to the top of the contact shell 23. The contact cover 24 is made of a silicone rubber mixed material and is detachable for easy replacement and maintenance. A patch temperature sensor 25, a contact pressure sensor 26 arranged below the patch temperature sensor 25, and a fan 27 arranged below the contact pressure sensor 26 are arranged inside the contact shell 23. The bearing of the fan 27 is located directly below the pressure sensor and is placed coaxially with the pressure sensor. After the pressure parameters are transmitted to the microcomputer, the height of the cylinder telescopic rod 21 is adaptively adjusted. The temperature sensor transmits the temperature reading to the microcomputer. The microcomputer can control the start and stop and air volume of the coaxial fan 27 through PWM and temperature control algorithms based on the temperature data fed back by the temperature sensor.

[0029] like Figure 6 As shown, it is a schematic diagram of the main working process of the whole system. After the system starts running, the patient lies flat on the decompression bed in a prone position, and then the patch temperature sensor 25 and the contact pressure sensor 26 start working and collect parameters such as temperature and pressure. The microcomputer processes the parameter data and controls the fan 27 and the decompression support mechanism to work. After the periodic telescopic mode is turned on, the support decompression rod array 6 realizes periodic telescopic expansion and contraction, and the pressure sensor still works in parallel during this period. After the system ends running, all decompression rods are reset and the cache is cleared.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. An intelligent prone position adaptive decompression bed, characterized in that: It comprises a support base plate and a decompression bed body connected to the support base plate through a lifting device, and the decompression bed body is provided with a facial support pillow and a support decompression rod array; The support decompression rod array is arranged in a honeycomb array on the decompression rod motherboard, including a chest decompression rod array and an abdomen decompression rod array; the chest decompression rod array and the abdomen decompression rod array both include a main support decompression rod module and auxiliary support decompression rod modules symmetrically arranged on both sides of the main support decompression rod module, the main support decompression rod module is a group of two support decompression rod assemblies that periodically expand and contract, and the auxiliary support decompression rod module is a group of one support decompression rod assembly that periodically expand and contract.

2. The intelligent prone position adaptive decompression bed according to claim 1, characterized in that: The supporting decompression rod assembly comprises a base, a cylinder arranged above the base and a cylinder telescopic rod, and a supporting member is arranged above the cylinder telescopic rod.

3. The intelligent prone position adaptive decompression bed according to claim 2, characterized in that: The support member includes a contact shell and a contact cover connected to the top of the contact shell. A patch temperature sensor, a contact pressure sensor arranged below the patch temperature sensor, and a fan arranged below the contact pressure sensor are arranged inside the contact shell.

4. The intelligent prone position adaptive decompression bed according to claim 3, characterized in that: The side and bottom of the contact shell are both provided with ventilation holes, and the contact cover is also provided with ventilation holes.

5. The intelligent prone position adaptive decompression bed according to claim 1, characterized in that: The side of the decompression bed body away from the face support pillow is connected with an electric folding mattress via a rotating shaft.

6. The intelligent prone position adaptive decompression bed according to claim 1, characterized in that: The facial support pillow is traversed in a cross shape on all sides, so as to facilitate the placement of a mask and an oxygen hose.

7. The intelligent prone position adaptive decompression bed according to claim 1, characterized in that: The decompression bed body is also provided with a knee positioning pad, the bottom of which is bonded and connected to the decompression bed body, so that the position can be adjusted according to the height of the patient.

8. The intelligent prone position adaptive decompression bed according to claim 1, characterized in that: Universal wheels are arranged at the four corners of the bottom end of the supporting base plate.

Images