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CN-122005244-A - Active partition alternate decompression multi-cavity water pillow

CN122005244ACN 122005244 ACN122005244 ACN 122005244ACN-122005244-A

Abstract

The invention relates to the technical field of nursing appliances, and discloses an active partition alternating pressure-reducing multi-cavity water pillow, which solves the problem that the conventional static water pillow cannot realize periodic pressure unloading; the pressure sore prevention device comprises a water pillow main body, a driving control assembly, a fluid diversion assembly and a pressure monitoring assembly, wherein at least two groups of pressure-bearing cavity groups which are mutually isolated in a fluid way and are arranged in a staggered way are arranged in the water pillow main body, the same groups of cavities are mutually communicated in a fluid way, the fluid diversion assembly realizes independent liquid filling, pressure maintaining and pressure releasing path control of each cavity group, the pressure monitoring assembly collects pressure data of each cavity in real time, the driving control assembly controls alternate liquid filling, pressure increasing and liquid discharging of different cavity groups according to preset time sequences or real-time pressure data, and periodic pressure transfer and unloading of pressed parts are realized.

Inventors

  • GAO DUODUO
  • HUANG LING
  • LI XIN
  • Shen Huijiao

Assignees

  • 湖州师范学院附属第一医院(湖州市第一人民医院)

Dates

Publication Date
20260512
Application Date
20260316

Claims (9)

  1. 1. The utility model provides an active subregion is multicavity water pillow of decompression in turn, includes water pillow main part (1), drive control assembly, fluid reposition of redundant personnel assembly and pressure monitoring assembly, its characterized in that: The water pillow main body (1) is provided with two groups of independent pressure-bearing chamber A groups (11) and pressure-bearing chamber B groups (12) which are completely isolated from each other by fluid; The fluid diversion assembly is respectively in fluid communication with the pressure-bearing cavity A group (11), the pressure-bearing cavity B group (12) and the drive control assembly and is used for independently controlling the liquid filling, pressure maintaining and pressure releasing fluid paths of the pressure-bearing cavity A group (11) and the pressure-bearing cavity B group (12); the pressure monitoring assembly is arranged in one-to-one correspondence with the pressure-bearing chamber A group (11) and the pressure-bearing chamber B group (12), and the detection ends of the pressure monitoring assembly extend into the inner cavities of the corresponding pressure-bearing chambers and are used for collecting the internal liquid pressure data of each pressure-bearing chamber in real time and transmitting the pressure data to the drive control assembly in real time; the driving control assembly is respectively and electrically connected with the fluid diversion assembly and the pressure monitoring assembly, can perform closed-loop control based on preset time sequence control logic and by combining pressure data acquired by the pressure monitoring assembly in real time, realize alternate liquid filling pressurization and liquid discharging pressure relief of different pressure-bearing cavity groups, and complete periodic pressure transfer and unloading of the pressed part of the human body.
  2. 2. The active zoned alternating pressure reducing multi-cavity water pillow according to claim 1, wherein the pressure bearing chamber a group (11) and the pressure bearing chamber B group (12) each comprise a plurality of independent pressure bearing chambers, and the pressure bearing chambers of the pressure bearing chamber a group (11) and the pressure bearing chamber B group (12) are staggered, so that adjacent pressure bearing chambers belong to different chamber groups.
  3. 3. The active zoned alternating reduced pressure multi-cavity water pillow according to claim 2, wherein the pressure monitoring assembly comprises a plurality of sets of connection gauges (3), each set of connection gauges (3) comprising a three-way joint (31), a quick release pipe joint one (32) and a pressure sensor (33); The three-way joint (31) is integrally formed in one-to-one correspondence with the rear end interfaces of the pressure-bearing chambers in the corresponding pressure-bearing chamber A group (11) and the pressure-bearing chamber B group (12), a first port of the three-way joint (31) is communicated with inner cavities of the pressure-bearing chamber A group (11) and the pressure-bearing chamber B group (12), a second port of the three-way joint is in sealing connection with a shunt tube (5) of the fluid shunt assembly through a quick-release pipe joint I (32), a third port of the three-way joint is in sealing connection with a pressure sensor (33), and a detection rod of the pressure sensor (33) penetrates through the inner cavities of the three-way joint (31) to extend into the pressure-bearing chamber A group (11) and the pressure-bearing chamber B group (12), and a signal output end of the detection rod of the pressure sensor is electrically connected with the drive control assembly.
  4. 4. An active zoned alternating reduced pressure multi-cavity water pillow according to claim 3 wherein the drive control assembly comprises a device support (2), a reservoir bag (6), a delivery water pump set, a pump set for pumping water, and a PLC controller (9); The device comprises a device support (2), a water pillow main body (1), a liquid storage bag (6), a conveying water pump set, a pumping water pump set, a PLC (programmable logic controller) and a data input end, wherein the device support (2) is arranged at the rear of the water pillow main body (1), the liquid storage bag (6) is arranged at the rear side of the device support (2) and is used for storing working mediums, the conveying water pump set and the pumping water pump set are symmetrically arranged at two sides of the device support (2), the PLC (9) is detachably arranged at the front side of the device support (2), and the control output end of the PLC is respectively and electrically connected with the conveying water pump set, the pumping water pump set and the controlled end of the fluid diversion assembly, and the data input end of the PLC is electrically connected with the signal output end of the pressure monitoring assembly.
  5. 5. The active zoned alternating reduced pressure multi-cavity water pillow of claim 4 wherein the equipment rack (2) comprises a rack body (21), a support platform (22), a guide rack (24), a water pump card (25) and a U-shaped rack (26); the support platform (22) is integrally arranged at the lower part of the front side of the bracket main body (21), and two L-shaped clamping plates (23) with waist-shaped adjusting holes are arranged at the top of the support platform (22) and are used for clamping and fixing the PLC (9); The guide bracket (24) is transversely fixed at the middle part of the front side of the bracket main body (21), and a plurality of cable clamping grooves are formed in the guide bracket (24) and used for clamping and fixing connecting wires; The water pump clamping plates (25) are symmetrically arranged on two sides of the bracket main body (21), and the water pump clamping plates (25) are provided with U-shaped notches for clamping the water pump; Two U-shaped support (26) symmetry sets up in the front side top of support main part (21), spacing spout (27) have been seted up to the bottom plate of U-shaped support (26), the inner chamber slidable mounting of U-shaped support (26) has compact heap (28), be provided with compact heap (29) between the rear side of compact heap (28) and the rear side riser of U-shaped support (26), promote to press from both sides tight fixed fluid reposition of redundant personnel assembly of compact heap (28) through the elasticity of compact heap (29).
  6. 6. The active zoned alternating reduced pressure multi-cavity water pillow of claim 5 wherein the fluid diverting assembly comprises a diverter (4), a diverting tube set, and a solenoid valve control unit; The flow dividing piece (4) is fixedly arranged at the top of the front side of the equipment bracket (2) of the drive control assembly, and an A-component flow cavity (41) and a B-component flow cavity (42) which correspond to the pressure-bearing cavity A group (11) and the pressure-bearing cavity B group (12) and are mutually independent and completely isolated in fluid are arranged in the flow dividing piece; The split-flow tube group comprises a plurality of medical flexible split-flow tubes (5), wherein two quick-insertion interfaces (44) are respectively arranged on the side walls of the A component flow cavity (41) and the B component flow cavity (42), the two quick-insertion interfaces (44) are respectively a liquid filling interface and a pressure relief interface, the liquid filling interface is correspondingly communicated with a conveying water pump group of the drive control assembly, and the pressure relief interface is correspondingly communicated with a pumping water pump group of the drive control assembly; and each electromagnetic valve of the electromagnetic valve control unit is respectively connected in series with each liquid filling pipeline and the pressure relief pipeline, and the controlled end of each electromagnetic valve is electrically connected with a PLC (9) of the drive control assembly.
  7. 7. The active zoned alternating pressure reducing multi-cavity water pillow according to claim 6, wherein a plurality of quick release pipe joints II (43) are arranged on the front sides of the A-component flow cavity (41) and the B-component flow cavity (42), two ends of the shunt pipe (5) are respectively communicated with the quick release pipe joints II (43) and corresponding interfaces of the pressure monitoring assembly in a sealing mode, the A-component flow cavity (41) is in fluid communication with the pressure-bearing cavity A group (11), and the B-component flow cavity (42) is in fluid communication with the pressure-bearing cavity B group (12).
  8. 8. The multi-cavity water pillow with the active partition alternating decompression function according to claim 6, wherein the conveying water pump group comprises two groups of conveying water pumps (7), the two groups of conveying water pumps are respectively arranged on water pump clamping plates (25) close to the front portions on two sides, the two groups of extracting water pumps (8) are respectively arranged on water pump clamping plates (25) close to the rear portions on two sides, a liquid filling interface of the component A flow cavity (41) is communicated with an output end of the conveying water pump (7) on the left side, a pressure relief interface is communicated with an input end of the extracting water pump (8) on the left side, a liquid filling interface of the component B flow cavity (42) is communicated with an output end of the conveying water pump (7) on the right side, the pressure relief interface is communicated with an input end of the extracting water pump (8) on the right side, the input ends of all the conveying water pumps (7) and the output ends of the extracting water pumps (8) are respectively communicated with an inner cavity of the liquid storage bag (6), and the output ends of the conveying water pumps (7) and the input ends of the extracting water pumps (8) are respectively connected in series with one-way check valves for preventing medium backflow.
  9. 9. The active zoned alternating reduced pressure multi-cavity water pillow of claim 6 wherein the solenoid valve control unit comprises a group a fill solenoid valve, a group a relief solenoid valve, a group B fill solenoid valve, and a group B relief solenoid valve; The A group liquid filling electromagnetic valve is connected in series on a liquid filling pipeline of the A group flow cavity (41), the A group pressure relief electromagnetic valve is connected in series on a pressure relief pipeline of the A group flow cavity (41), the B group liquid filling electromagnetic valve is connected in series on a liquid filling pipeline of the B group flow cavity (42), the B group pressure relief electromagnetic valve is connected in series on a pressure relief pipeline of the B group flow cavity (42), all electromagnetic valves are normally closed electromagnetic valves, and the on-off of all electromagnetic valves are independently controlled by a PLC (9) to realize independent control of liquid filling, pressure maintaining and pressure relief paths of corresponding pressure bearing cavity groups.

Description

Active partition alternate decompression multi-cavity water pillow Technical Field The invention relates to the technical field of nursing appliances, in particular to an active partition alternating pressure-reducing multi-cavity water pillow. Background Pressure injury (commonly called pressure sore) is one of the most common complications of bedridden patients, comatose patients and spinal cord injury paralyzed patients, and the core cause is that local tissues of the body are pressed by continuous static pressure for a long time, so that capillary blood circulation is blocked, and tissue hypoxia and ischemia further occur necrosis and ulcer. Clinical data show that the occurrence rate of pressure sores at the headrest part, occipital bone tuberosity, auricle and other parts of bedridden patients accounts for 12% -20% of the pressure sores of the whole body, and especially patients which cannot move independently and turn over independently, the parts lack effective pressure unloading means, and the prevention effect of the conventional nursing scheme is extremely poor. Currently, the main stream products for preventing head and neck pressure sores are divided into two types: The first type is a traditional static water pillow and a gel pad, the products only rely on the fluidity of fluid to passively disperse local pressure, the core problem that 'the apophysis part continuously bears static pressure' cannot be changed, for a completely disabled patient, the pressed part of the product is always above the critical pressure of capillary vessel closure, periodic pressure unloading cannot be realized, the pressure sore prevention effect is very limited, and the product can be only used for a patient with slight autonomous movement capability; The second type is a whole-body alternative inflatable decompression mattress, and the product can realize periodic pressure unloading, but has no special adapting design aiming at the physiological curve of the head and neck, the arrangement of the chambers in the head and neck area is unreasonable, the physiological structures of occiput, auricle and cervical vertebra can not be accurately matched, and abnormal cervical vertebra stress is easily caused. In summary, a multi-cavity water pillow with active partition alternating decompression is developed. Disclosure of Invention In view of the above problems in the prior art, the present invention aims to provide an active partition alternating pressure-reducing multi-cavity water pillow, which solves the core problem that the traditional static water pillow cannot realize periodic pressure unloading, and radically eliminates the continuous static pressure of the head and neck apophysis. The invention adopts the following technical scheme that the active partition alternating pressure-reducing multi-cavity water pillow comprises a water pillow main body, a driving control assembly, a fluid diversion assembly and a pressure monitoring assembly; the water pillow main body is provided with two groups of independent pressure-bearing chamber A groups and pressure-bearing chamber B groups which are completely isolated from each other by fluid; the fluid diversion assembly is respectively in fluid communication with the pressure-bearing cavity A group, the pressure-bearing cavity B group and the drive control assembly and is used for independently controlling the liquid filling, pressure maintaining and pressure releasing fluid paths of the pressure-bearing cavity A group and the pressure-bearing cavity B group; the pressure monitoring assembly is arranged in one-to-one correspondence with the pressure-bearing chamber A group and the pressure-bearing chamber B group, and the detection end of the pressure monitoring assembly extends into the inner cavity of the corresponding pressure-bearing chamber to be used for collecting the internal liquid pressure data of each pressure-bearing chamber in real time and transmitting the pressure data to the drive control assembly in real time; the driving control assembly is respectively and electrically connected with the fluid diversion assembly and the pressure monitoring assembly, can perform closed-loop control based on preset time sequence control logic and by combining pressure data acquired by the pressure monitoring assembly in real time, realize alternate liquid filling pressurization and liquid discharging pressure relief of different pressure-bearing cavity groups, and complete periodic pressure transfer and unloading of the pressed part of the human body. As a further improvement of the above scheme, the pressure-bearing chamber a group and the pressure-bearing chamber B group each comprise a plurality of independent pressure-bearing chambers, and the pressure-bearing chambers of the pressure-bearing chamber a group and the pressure-bearing chamber B group are staggered, so that adjacent pressure-bearing chambers belong to different chamber groups. As a further improvement of