CN114831824B - Negative pressure air cushion for preventing pressure sore - Google Patents

Negative pressure air cushion for preventing pressure sore Download PDF

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Publication number
CN114831824B
CN114831824B CN202210614311.1A CN202210614311A CN114831824B CN 114831824 B CN114831824 B CN 114831824B CN 202210614311 A CN202210614311 A CN 202210614311A CN 114831824 B CN114831824 B CN 114831824B
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China
Prior art keywords
plate
plates
air cushion
worm
air
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Chinese (zh)
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CN114831824A (en
Inventor
陈香萍
陈丽
郭倩倩
肖艳萍
仇秀敏
劳月文
张奕
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Zhejiang University ZJU
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Zhejiang University ZJU
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Priority to CN202210614311.1A priority Critical patent/CN114831824B/en
Publication of CN114831824A publication Critical patent/CN114831824A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05Parts, details or accessories of beds
    • A61G7/057Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
    • A61G7/05769Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with inflatable chambers
    • A61G7/05776Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with inflatable chambers with at least two groups of alternately inflated chambers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/001Beds specially adapted for nursing; Devices for lifting patients or disabled persons with means for turning-over the patient
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05Parts, details or accessories of beds

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  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

The invention discloses a negative pressure air cushion for preventing pressure sores, and relates to the technical field of negative pressure air cushions; the air cushion comprises a plurality of air cushion air bags, wherein one end of each air cushion air bag is provided with an air tap, the air cushion air bags are detachably connected with a fixing assembly, any one air cushion air bag is sleeved in an elastic belt, so that the air cushion air bags are convenient to fix and mount, and the air cushion air bags are smoothly mounted and are convenient for patients to use; the two ends of the central plate are rotationally hinged with the two middle side plates, and the two ends of the side plates are rotationally hinged with the two corner plates, so that when the turning plates can smoothly rotate along the fixed plate, and the two turning plates rotate along the fixed plate in opposite directions, the movement directions of the upper body and the legs of a patient are opposite; the third motor drives the third worm wheel to rotate through the third worm, so that the third rotating shaft drives the T-shaped plate to rotate, and the side plate and the angle plate upwards rotate along the central plate through the T-shaped plate, so that the patient can be assisted to change from a lying posture to a lying posture.

Description

Negative pressure air cushion for preventing pressure sore
Technical Field
The invention relates to the technical field of negative pressure air cushions, in particular to a negative pressure air cushion for preventing pressure sores.
Background
The pressure sore is also called bedsore and pressure ulcer, because the local skin of the body is pressed for a long time to influence the blood circulation, the skin and subcutaneous tissue are damaged, ulcerated and even necrotized due to lack of nutrition, the pressure sore is well developed at the pressed bone protruding parts such as sacral coccyx, ankle, heel, buttock and the like, the existing preventive measures are that the body position of the patient is continuously moved through the family members of the patient, the lying posture of the patient is changed, the patient is psychologically born, the existing negative pressure air cushion is a single air cushion, the lying posture of the patient is changed only by the cooperation of the family members, the use is inconvenient, and the inventor proposes the negative pressure air cushion for preventing the pressure sore to solve the problems.
Disclosure of Invention
In order to solve the problems that the existing negative pressure air cushion is a single air cushion, and the lying posture of a patient can be changed only by matching the family members, so that the use is inconvenient; the invention aims to provide a negative pressure air cushion for preventing pressure sores.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a negative pressure air cushion of prevention pressure sore, includes the air cushion gasbag, the quantity of air cushion gasbag is a plurality of, the one end of air cushion gasbag all is provided with the air cock, the air cushion gasbag can be dismantled and be connected with fixed subassembly, the fixed subassembly bottom is provided with the middle layer board subassembly, the middle layer board subassembly is including center board, middle sideboard, curb plate and scute, the middle layer board subassembly bottom is provided with the bottom plate subassembly, the bottom plate subassembly is including fixed plate and turning over the board, install first adjusting device, stop device and helping hand turning over the device in the bottom plate subassembly, turning over the board is connected in the first adjusting device transmission, helping hand turning over the device transmission and connecting the curb plate, a plurality of air cushion gasbags pass through the smooth installation of fixed subassembly, and during the use, the bottom plate subassembly can realize the rotation regulation of fixed plate and turning over the board through first adjusting device, and helping hand turning over the device makes the middle layer board subassembly can overturn the patient, makes the patient become by lying on one's side.
The bottom plate assembly is rectangular, two ends of the fixed plate are rotationally hinged with the two turning plates, cross sliding grooves are formed in two sides of the fixed plate, the cross sliding grooves are in sliding connection with the limiting device, two first mounting grooves and one second mounting groove are formed in the fixed plate, a first adjusting device and a power-assisted turning device are mounted in the first mounting grooves, guard plates are fixedly arranged on the upper surfaces of two sides of the turning plates, the turning plates rotate along the fixed plate, the rotation directions of the two turning plates are opposite, the movement directions of the upper body and the leg of a patient are opposite, and the fixed plate is fixedly mounted, so that the first adjusting device and the power-assisted turning device can work stably; the limiting device comprises a second motor, the second motor is fixedly arranged in a second mounting groove, the output end of the second motor is fixedly provided with a second worm, the second worm is in meshed connection with a second worm wheel, the two side surfaces of the second worm wheel are fixedly provided with screw rods, the screw threads of the two screw rods are opposite in direction, the screw rods are in rotary connection with a fixed plate, one end of each screw rod is in threaded connection with a U-shaped seat, the U-shaped seats are slidably arranged in a cross sliding groove, the upper end of each U-shaped seat is fixedly connected with a limiting strip, the inner side surfaces of the limiting strips are attached to the outer side surfaces of side plates, when a patient needs to lie flat, in order to enable a middle layer plate assembly to be stably placed on the upper surface of a bottom plate assembly, the second worm wheel is driven to rotate through the second worm wheel, and then the two screw rods with opposite screw threads are enabled to reversely slide and squeeze the side plates, so that the side plates are limited, and when the lying position of the patient needs to be regulated, the two limiting strips reversely slide and are separated from the side plates; the first adjusting device comprises a first motor, the first motor is fixedly arranged in a first mounting groove, a driving conical gear is fixedly arranged at the output end of the first motor, the driving conical gear is connected with two driven conical gears in a meshed mode, the driven conical gears are respectively connected with a first worm in a transmission mode, the first worm is connected with a first worm wheel in a meshed mode, the first worm wheel is connected with a turning plate in a transmission mode, the first motor enables the two driven conical gears to rotate through the driving conical gears, and the turning plate corresponding to the first worm wheel is driven to rotate through the first worm; the driven bevel gear is internally and fixedly connected with a first rotating shaft, the outer surface of the first rotating shaft is rotationally connected with two supporting blocks, the two supporting blocks are fixedly connected with the side surfaces of the side plates and the angle plate, the first worm wheel is internally and fixedly provided with a second rotating shaft which is rotationally connected with the fixed plate, the second rotating shaft is in transmission connection with the turning plate, the driven bevel gear can rotate through the first worm through the first rotating shaft, and then the second rotating shaft is in transmission with the turning plate through the first worm wheel; the power-assisted turning device comprises a third motor, the third motor is fixedly arranged in a first mounting groove, a third worm is fixedly arranged at the output end of the third motor, a third worm gear is connected with the third worm in a meshed mode, a third rotating shaft is fixedly arranged in the third worm gear, two ends of the third rotating shaft are rotationally connected with the inner wall of the first mounting groove, two ends of the third rotating shaft are fixedly provided with first gears, T-shaped plates are fixedly arranged at the surface of the first gears, the upper surfaces of the T-shaped plates are attached to the bottom surfaces of the side plates, the third motor drives the third worm gear to rotate through the third worm, the T-shaped plates are driven to rotate through the T-shaped plates, and accordingly the side plates and the corner plates can be assisted to change from lying to a lying posture.
Preferably, the air cushion air bag is in a cylindrical shape, the surface material of the air cushion air bag is medical thickened environment-friendly PVC fabric, and the surface material of the air cushion air bag is medical thickened environment-friendly PVC fabric, so that the damage and friction to the skin of a patient are reduced; the air tap comprises a connecting pipe, wherein the connecting pipe is fixedly sleeved with the air cushion air bags, one end of the connecting pipe is fixedly provided with a conical head, a one-way valve is arranged in the conical head, one end of the conical head is sleeved with a ball tap, and any one air cushion air bag is provided with an air tap, so that the negative pressure value of any one air cushion air bag can be set, and a plurality of air cushion air bags which are laid flatly are compounded and adapt to human mechanics; the fixing component comprises breathable cloth, the breathable cloth is arranged at the upper surface of the central plate, a plurality of elastic belts are fixedly connected to the upper surface of the breathable cloth, each elastic belt is U-shaped, the elastic belts are arranged in two rows, air cushion air bags are sleeved in the elastic belts, and any air cushion air bag is sleeved in the elastic belts, so that the air cushion air bags are convenient to install and fix.
Preferably, the middle layer plate assembly is rectangular, two ends of the center plate are hinged to the two middle side plates in a rotating mode, two sides of the center plate are hinged to the two side plates in a rotating mode, two ends of any side plate are hinged to the two side plates in a rotating mode, two ends of the center plate are hinged to the two middle side plates in a rotating mode, two ends of the side plate are hinged to the two side plates in a rotating mode, and therefore the turning plate can smoothly rotate along the fixing plate.
Compared with the prior art, the invention has the beneficial effects that:
1. any one air cushion air bag is sleeved in the elastic belt, so that the fixed installation is convenient, and the flat installation of a plurality of air cushion air bags is convenient for patients to use;
2. the two ends of the central plate are rotationally hinged with the two middle side plates, and the two ends of the side plates are rotationally hinged with the two corner plates, so that when the turning plates can smoothly rotate along the fixed plate, and the two turning plates rotate along the fixed plate in opposite directions, the movement directions of the upper body and the legs of a patient are opposite;
3. the third motor drives the third worm wheel to rotate through the third worm, so that the third rotating shaft drives the T-shaped plate to rotate, and the side plate and the angle plate upwards rotate along the central plate through the T-shaped plate, so that the patient can be assisted to change from a lying posture to a lying posture.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the whole structure of the present invention.
FIG. 2 is a schematic view of an air faucet according to the present invention.
FIG. 3 is a schematic view of a structural fastening assembly according to the present invention.
FIG. 4 is a schematic view of a laminate assembly in accordance with the present invention.
FIG. 5 is a schematic view of the interior of the structural bottom plate assembly of the present invention.
FIG. 6 is a schematic view of a structural bottom plate assembly of the present invention.
Fig. 7 is a schematic view of a first adjusting device, a limiting device and a power-assisted turning device of the structure of the invention.
Fig. 8 is an enlarged schematic view of the structure of the present invention at a in fig. 7.
In the figure: 1. an air cushion air bag; 2. a fixing assembly; 21. breathable cloth; 22. an elastic belt; 3. a middle layer plate assembly; 31. a center plate; 32. a middle side plate; 33. a side plate; 34. a corner plate; 4. a bottom plate assembly; 41. a fixing plate; 411. a first mounting groove; 412. a second mounting groove; 413. a cross chute; 42. turning plate; 421. a guard board; 5. a first adjusting device; 51. a first motor; 52. a driving bevel gear; 53. a driven bevel gear; 54. a first rotating shaft; 55. a support block; 56. a first worm; 57. a first worm wheel; 58. a second rotating shaft; 6. a limiting device; 61. a second motor; 62. a second worm; 63. a second worm wheel; 64. a screw rod; 65. a U-shaped seat; 66. a limit bar; 7. an air tap; 71. a connecting pipe; 72. a conical head; 73. a one-way valve; 74. a ball nozzle; 8. a power-assisted turning device; 81. a third motor; 82. a third worm; 83. a third worm wheel; 84. a third rotating shaft; 85. a first gear; 86. t-shaped plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one: as shown in fig. 1-8, the invention provides a negative pressure air cushion for preventing pressure sores, which comprises an air cushion air bag 1, wherein the number of the air cushion air bags 1 is multiple, one end of the air cushion air bag 1 is provided with air nozzles 7, the air cushion air bag 1 is detachably connected with a fixing component 2, the bottom end of the fixing component 2 is provided with a middle layer board component 3, the middle layer board component 3 comprises a central board 31, a middle side board 32, a side board 33 and a corner board 34, the bottom end of the middle layer board component 3 is provided with a bottom board component 4, the bottom board component 4 comprises a fixing board 41 and a turning board 42, a first adjusting device 5, a limiting device 6 and a power-assisted turning device 8 are arranged in the bottom board component 4, the first adjusting device 5 is in transmission connection with the turning board 42, and the power-assisted turning device 8 is in transmission connection with the side board 33.
Through adopting above-mentioned technical scheme, a plurality of air cushion gasbag 1 pass through the smooth installation of fixed subassembly 2, and during the use, bottom plate subassembly 4 can realize through first adjusting device 5 that fixed plate 41 and turn over the rotation of board 42 is adjusted, and helping hand turnover device 8 makes middle layer plate subassembly 3 can overturn the patient, makes the patient can become to lie by the side from lying.
The air cushion air bag 1 is in a cylindrical shape, and the surface material of the air cushion air bag 1 is medical thickened environment-friendly PVC fabric.
By adopting the technical scheme, the surface material of the air cushion air bag 1 is medical thickened environment-friendly PVC fabric, so that the damage and friction to the skin of a patient are reduced.
The air tap 7 comprises a connecting pipe 71, the connecting pipe 71 is fixedly sleeved with the air cushion air bag 1, one end of the connecting pipe 71 is fixedly provided with a conical head 72, a one-way valve 73 is arranged in the conical head 72, and a ball tap 74 is sleeved in one end of the conical head 72.
By adopting the technical scheme, the air tap 7 is arranged on any one air cushion air bag 1, so that the negative pressure value of any one air cushion air bag 1 can be set, and a plurality of air cushion air bags 1 laid flatly are compounded and adapt to human mechanics.
The fixing component 2 comprises an air-permeable cloth 21, the air-permeable cloth 21 is arranged on the upper surface of the central plate 31, a plurality of elastic belts 22 are fixedly connected to the upper surface of the air-permeable cloth 21, the elastic belts 22 are U-shaped, the elastic belts 22 are arranged in two rows, and the air cushion air bags 1 are sleeved in the elastic belts 22.
By adopting the technical scheme, any one air cushion air bag 1 is sleeved in the elastic belt 22, so that the air cushion air bag 1 is convenient to install and fix.
The middle plate assembly 3 is rectangular, two ends of the middle plate 31 are rotatably hinged with two middle side plates 32, two sides of the middle plate 31 are rotatably hinged with two side plates 33, and two ends of any side plate 33 are rotatably hinged with two corner plates 34.
By adopting the above technical solution, the two ends of the central plate 31 are rotatably hinged to the two middle side plates 32, and the two ends of the side plate 33 are rotatably hinged to the two corner plates 34, so that the flap 42 can smoothly rotate along the fixed plate 41.
The bottom plate subassembly 4 is the rectangle form, and the both ends and the two of fixed plate 41 turn over board 42 rotation and articulate, and cross spout 413 has all been seted up to the both sides department of fixed plate 41, and cross spout 413 sliding connection stop device 6 has been seted up two first mounting groove 411 and a second mounting groove 412 in the fixed plate 41, installs first adjusting device 5 and helping hand turning device 8 in the first mounting groove 411, turns over board 42 both sides upper surface fixation and is equipped with backplate 421.
Through adopting above-mentioned technical scheme, turn over the board 42 and rotate along fixed plate 41, and the rotation direction of two turns over the board 42 is opposite, makes patient's upper body and shank direction of motion opposite, fixed plate 41 fixed mounting to make first adjusting device 5 and helping hand turnover device 8 can work steadily.
The limiting device 6 comprises a second motor 61, the second motor 61 is fixedly arranged in a second mounting groove 412, a second worm 62 is fixedly arranged at the output end of the second motor 61, a second worm gear 63 is connected with the second worm 62 in a meshed mode, screw rods 64 are fixedly arranged on the surfaces of two sides of the second worm gear 63, the screw threads of the two screw rods 64 are opposite in direction, the screw rods 64 are rotationally connected with the fixing plate 41, a U-shaped seat 65 is connected with one end of the screw rods 64 in a threaded mode, the U-shaped seat 65 is slidably arranged in a cross sliding groove 413, a limiting strip 66 is fixedly connected to the upper end of the U-shaped seat 65, and the inner side surface of the limiting strip 66 is attached to the outer side surface of the side plate 33.
Through adopting above-mentioned technical scheme, when the patient needs to lie flat, in order to make middle layer board subassembly 3 stably place in bottom plate subassembly 4 upper surface, accessible second motor 61 transmission second worm 62 rotates to rotate through two screw rod 64 rotation that screw thread direction is opposite of second worm wheel 63 transmission, make two spacing 66 reverse slip and extrusion curb plate 33 then, thereby carry out spacingly to curb plate 33, when needing to adjust the patient and lie the appearance, slide two spacing 66 reverse and break away from curb plate 33.
The first adjusting device 5 comprises a first motor 51, the first motor 51 is fixedly installed in a first installation slot 411, a driving bevel gear 52 is fixedly arranged at the output end of the first motor 51, the driving bevel gear 52 is in meshed connection with two driven bevel gears 53, the driven bevel gears 53 are respectively in transmission connection with a first worm 56, the first worm 56 is in meshed connection with a first worm wheel 57, and the first worm wheel 57 is in transmission connection with the turning plate 42.
By adopting the above technical scheme, the first motor 51 rotates the two driven bevel gears 53 through the driving bevel gear 52, and drives the corresponding turning plate 42 to rotate through the first worm 56 by the first worm wheel 57.
The driven bevel gear 53 is fixedly connected with a first rotating shaft 54, the outer surface of the first rotating shaft 54 is rotationally connected with two supporting blocks 55, the two supporting blocks 55 are fixedly connected with the side plates 33 and the side faces of the angle plate 34, the first worm gear 57 is fixedly provided with a second rotating shaft 58, the second rotating shaft 58 is rotationally connected with the fixed plate 41, and the second rotating shaft 58 is in transmission connection with the turning plate 42.
By adopting the technical scheme, the driven bevel gear 53 can drive the first worm 56 to rotate through the first rotating shaft 54, and then drive the second rotating shaft 58 to rotate through the first worm wheel 57.
The power-assisted turning device 8 comprises a third motor 81, wherein the third motor 81 is fixedly arranged in a first mounting groove 411, a third worm 82 is fixedly arranged at the output end of the third motor 81, a third worm gear 83 is connected with the third worm gear 82 in a meshed mode, a third rotating shaft 84 is fixedly arranged in the third worm gear 83, two ends of the third rotating shaft 84 are rotatably connected with the inner wall of the first mounting groove 411, two ends of the third rotating shaft 84 are fixedly provided with a first gear 85, a T-shaped plate 86 is fixedly arranged at the surface of the first gear 85, and the upper surface of the T-shaped plate 86 is attached to the bottom surface of the side plate 33.
Through adopting above-mentioned technical scheme, the third motor 81 passes through the rotation of third worm 82 transmission third worm wheel 83, makes the rotation of third pivot 84 transmission T shaped plate 86 to make curb plate 33 and scute 34 upwards rotate along center plate 31 through T shaped plate 86, then can assist the patient to become the posture of lying on one's side from lying on one's side.
Working principle: any one air cushion air bag 1 is through cup jointing in elastic belt 22 to make air cushion air bag 1 be convenient for smooth fixed mounting ventilative cloth 21 upper surface, thereby the surface material of air cushion air bag 1 is medical thickening environment-friendly PVC surface fabric reduces the damage and the friction to patient's skin, and any one air cushion air bag 1 all sets up an air cock 7, thereby can set for the negative pressure value of any one air cushion air bag 1, make a plurality of air cushion air bags 1 that level was laid compound and adapt to human mechanics, when the patient need lie flat, in order to make middle layer board subassembly 3 stably place in bottom plate subassembly 4 upper surface, accessible second motor 61 drive second worm 62 rotate, and drive the lead screw 64 rotation of two screw opposite directions through second worm wheel 63, then make two limit strips 66 reverse slip and extrude curb plate 33, when needs adjust patient's lying position, make two driven bevel gear 53 rotate through initiative bevel gear 52, and make first worm wheel 57 drive corresponding board 42 rotate through first worm wheel 41, in order to make middle plate 31 stable the placing in bottom plate subassembly 4 upper surface, and the opposite direction of rotation of two side plate 31 can be followed by the opposite direction of rotation of two side plate 31, thereby the opposite direction of rotation of two side plate 33 is realized through the fixed worm wheel plate 31, and the opposite rotation of two side plate 33, and side plate 82 are rotated through the opposite direction of side plate 82 is rotated, thereby the opposite rotation is made.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (2)

1. Negative pressure air cushion of prevention pressure sore, including air cushion gasbag (1), its characterized in that: the number of the air cushion airbags (1) is multiple, one ends of the air cushion airbags (1) are provided with air nozzles (7), the air cushion airbags (1) are detachably connected with fixing assemblies (2), the bottom ends of the fixing assemblies (2) are provided with middle layer plate assemblies (3), the middle layer plate assemblies (3) comprise center plates (31), middle side plates (32), side plates (33) and corner plates (34), bottom layer plate assemblies (4) are arranged at the bottom ends of the middle layer plate assemblies (3), the bottom layer plate assemblies (4) comprise fixing plates (41) and turning plates (42), first adjusting devices (5), limiting devices (6) and power-assisted turning devices (8) are arranged in the bottom layer plate assemblies (4), the first adjusting devices (5) are in transmission connection with the turning plates (42), and the power-assisted turning devices (8) are in transmission connection with the side plates (33).
The bottom plate assembly (4) is rectangular, two ends of the fixed plate (41) are rotationally hinged with the two turning plates (42), cross sliding grooves (413) are formed in two sides of the fixed plate (41), the limiting device (6) is connected in the cross sliding grooves (413) in a sliding mode, two first mounting grooves (411) and one second mounting groove (412) are formed in the fixed plate (41), a first adjusting device (5) and a power-assisted turning device (8) are mounted in the first mounting grooves (411), and guard plates (421) are fixedly arranged on the upper surfaces of two sides of the turning plates (42);
the limiting device (6) comprises a second motor (61), the second motor (61) is fixedly arranged in a second mounting groove (412), a second worm (62) is fixedly arranged at the output end of the second motor (61), a second worm wheel (63) is connected with the second worm (62) in a meshed mode, screw rods (64) are fixedly arranged on the surfaces of two sides of the second worm wheel (63), the screw threads of the two screw rods (64) are opposite in direction, the screw rods (64) are rotationally connected with a fixed plate (41), one end of each screw rod (64) is in threaded connection with a U-shaped seat (65), the U-shaped seat (65) is slidably arranged in a cross sliding groove (413), a limiting strip (66) is fixedly connected to the upper end of each U-shaped seat (65), and the inner side surfaces of the limiting strips (66) are in fit with the outer side surfaces of the connecting side plates (33).
The first adjusting device (5) comprises a first motor (51), the first motor (51) is fixedly arranged in a first mounting groove (411), a driving conical gear (52) is fixedly arranged at the output end of the first motor (51), two driven conical gears (53) are connected with the driving conical gear (52) in a meshed mode, first worms (56) are connected with the driven conical gears (53) in a transmission mode respectively, first worm gears (57) are connected with the first worms (56) in a meshed mode, and the first worm gears (57) are connected with turning plates (42) in a transmission mode;
the driven bevel gear (53) is internally and fixedly connected with a first rotating shaft (54), the outer surface of the first rotating shaft (54) is rotationally connected with two supporting blocks (55), the two supporting blocks (55) are fixedly connected with the side surfaces of the side plates (33) and the corner plates (34), the first worm wheel (57) is internally and fixedly provided with a second rotating shaft (58), the second rotating shaft (58) is rotationally connected with the fixed plate (41), and the second rotating shaft (58) is in transmission connection with the turning plate (42);
the power-assisted turning device (8) comprises a third motor (81), the third motor (81) is fixedly arranged in a first mounting groove (411), a third worm (82) is fixedly arranged at the output end of the third motor (81), a third worm wheel (83) is connected with the third worm (82) in a meshed mode, a third rotating shaft (84) is fixedly arranged in the third worm wheel (83), two ends of the third rotating shaft (84) are rotatably connected with the inner wall of the first mounting groove (411), first gears (85) are fixedly arranged at two ends of the third rotating shaft (84), T-shaped plates (86) are fixedly arranged at the surface of the first gears (85), and the upper surfaces of the T-shaped plates (86) are attached to the bottom surfaces of the connecting side plates (33);
the air tap (7) comprises a connecting pipe (71), the connecting pipe (71) is fixedly sleeved with the air cushion air bag (1), one end of the connecting pipe (71) is fixedly provided with a conical head (72), a one-way valve (73) is arranged in the conical head (72), and a ball tap (74) is sleeved in one end of the conical head (72);
the fixing assembly (2) comprises a breathable cloth (21), the breathable cloth (21) is arranged on the upper surface of the central plate (31), a plurality of elastic belts (22) are fixedly connected to the upper surface of the breathable cloth (21), the elastic belts (22) are U-shaped, the elastic belts (22) are arranged in two rows, and the elastic belts (22) are sleeved with the air cushion air bags (1);
the middle layer plate assembly (3) is rectangular, two ends of the center plate (31) are rotatably hinged with two middle side plates (32), two sides of the center plate (31) are rotatably hinged with two side plates (33), and two ends of any side plate (33) are rotatably hinged with two corner plates (34);
when a patient needs to lie flat, the second worm (62) can be driven to rotate through the second motor (61), and the two screw rods (64) with opposite screw thread directions are driven to rotate through the second worm wheel (63), so that the two limit strips (66) reversely slide and squeeze the side plates (33), the side plates (33) are limited, and the middle layer plate assembly (3) is stably placed on the upper surface of the bottom layer plate assembly (4);
when the lying position of a patient needs to be adjusted, the two limit strips (66) are reversely slid and separated from the side plates (33), then the first motor (51) rotates the two driven bevel gears (53) through the driving bevel gears (52), the first worm gear (57) drives the corresponding turning plates (42) to rotate through the first worm (56), as the fixing plate (41) is fixedly arranged, the two ends of the center plate (31) are rotationally hinged with the two middle side plates (32), the two ends of the side plates (33) are rotationally hinged with the two corner plates (34), the turning plates (42) rotate along the fixing plate (41), and the rotation directions of the two turning plates (42) are opposite, so that the movement directions of the upper body and the legs of the patient are opposite;
the third motor (81) drives the third worm wheel (83) to rotate through the third worm (82), so that the third rotating shaft (84) drives the T-shaped plate (86) to rotate, and accordingly the side plate (33) and the corner plate (34) rotate upwards along the central plate (31) through the T-shaped plate (86), and the patient is assisted to change from a lying-down posture to a lying-side posture.
2. The negative pressure air cushion for preventing pressure sores according to claim 1, wherein the air cushion air bag (1) is in a cylindrical shape, and the surface material of the air cushion air bag (1) is medical thickened environment-friendly PVC fabric.
CN202210614311.1A 2022-05-31 2022-05-31 Negative pressure air cushion for preventing pressure sore Active CN114831824B (en)

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08164167A (en) * 1994-12-16 1996-06-25 Keepu:Kk Air mat for medical treatment
CN2889248Y (en) * 2006-03-21 2007-04-18 周伟民 A multipurpose turn-over sickbed
CN205795944U (en) * 2016-05-22 2016-12-14 齐玉祥 A kind of bilateral bed capable of nursing and supporting patient
CN106691743A (en) * 2017-03-22 2017-05-24 朱凤珍 Medical automatic turnover nursing device
CN111671587A (en) * 2020-07-28 2020-09-18 河南省中医院(河南中医药大学第二附属医院) Auxiliary turning-over device for nursing
CN112842749A (en) * 2021-02-20 2021-05-28 新乡医学院第一附属医院 Sore nursing device is pressed to back
CN213964026U (en) * 2020-12-07 2021-08-17 陈金贞 Movement limiting device for psychiatric department
CN214049442U (en) * 2020-10-14 2021-08-27 深圳市大鹏新区南澳人民医院 Pressure measuring mattress for preventing bedsore
CN114081740A (en) * 2021-12-22 2022-02-25 苏州市惠尔康医疗器械有限公司 Three-folding turnover mattress
CN114129362A (en) * 2021-12-18 2022-03-04 孙妍 Multi-functional special sick bed of head intravenous route for paediatrics

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08164167A (en) * 1994-12-16 1996-06-25 Keepu:Kk Air mat for medical treatment
CN2889248Y (en) * 2006-03-21 2007-04-18 周伟民 A multipurpose turn-over sickbed
CN205795944U (en) * 2016-05-22 2016-12-14 齐玉祥 A kind of bilateral bed capable of nursing and supporting patient
CN106691743A (en) * 2017-03-22 2017-05-24 朱凤珍 Medical automatic turnover nursing device
CN111671587A (en) * 2020-07-28 2020-09-18 河南省中医院(河南中医药大学第二附属医院) Auxiliary turning-over device for nursing
CN214049442U (en) * 2020-10-14 2021-08-27 深圳市大鹏新区南澳人民医院 Pressure measuring mattress for preventing bedsore
CN213964026U (en) * 2020-12-07 2021-08-17 陈金贞 Movement limiting device for psychiatric department
CN112842749A (en) * 2021-02-20 2021-05-28 新乡医学院第一附属医院 Sore nursing device is pressed to back
CN114129362A (en) * 2021-12-18 2022-03-04 孙妍 Multi-functional special sick bed of head intravenous route for paediatrics
CN114081740A (en) * 2021-12-22 2022-02-25 苏州市惠尔康医疗器械有限公司 Three-folding turnover mattress

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