CN113855411A - Pressure injury prevention wheelchair - Google Patents

Pressure injury prevention wheelchair Download PDF

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Publication number
CN113855411A
CN113855411A CN202111020650.9A CN202111020650A CN113855411A CN 113855411 A CN113855411 A CN 113855411A CN 202111020650 A CN202111020650 A CN 202111020650A CN 113855411 A CN113855411 A CN 113855411A
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CN
China
Prior art keywords
fixedly connected
belt pulley
massage
belt
backrest
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202111020650.9A
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Chinese (zh)
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CN113855411B (en
Inventor
蔡福满
江小琼
黄盼
王雨欣
周敏
杨宇帆
林璐璐
钱洁宇
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Wenzhou Medical University
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Wenzhou Medical University
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Publication date
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Priority to CN202111020650.9A priority Critical patent/CN113855411B/en
Publication of CN113855411A publication Critical patent/CN113855411A/en
Application granted granted Critical
Publication of CN113855411B publication Critical patent/CN113855411B/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/006—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs convertible to stretchers or beds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1043—Cushions specially adapted for wheelchairs
    • A61G5/1045—Cushions specially adapted for wheelchairs for the seat portion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1043—Cushions specially adapted for wheelchairs
    • A61G5/1048—Cushions specially adapted for wheelchairs for the back-rest
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1067—Arrangements for adjusting the seat adjusting the backrest relative to the seat portion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H7/00—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/01—Constructive details
    • A61H2201/0119—Support for the device
    • A61H2201/0138—Support for the device incorporated in furniture
    • A61H2201/0149—Seat or chair
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/12—Driving means
    • A61H2201/1207—Driving means with electric or magnetic drive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/12—Driving means
    • A61H2201/1253—Driving means driven by a human being, e.g. hand driven
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2205/00—Devices for specific parts of the body
    • A61H2205/08—Trunk
    • A61H2205/081—Back
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2205/00—Devices for specific parts of the body
    • A61H2205/08—Trunk
    • A61H2205/086—Buttocks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2205/00—Devices for specific parts of the body
    • A61H2205/10—Leg

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dermatology (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Massaging Devices (AREA)

Abstract

The invention discloses a pressure damage prevention wheelchair in the field of medical instruments, which comprises a support frame, wherein the left side and the right side of the rear side of the support frame are symmetrically and rotatably connected with idler wheels, and the bottom ends of the left side and the right side of the front side of the support frame are symmetrically and rotatably connected with universal wheels; the upper end of the supporting frame is fixedly connected with a cushion, and the bottom end of the cushion and the back end of the backrest are respectively provided with a massage mechanism for preventing pressure injury; a driving mechanism for driving the massage mechanism to massage is arranged in the supporting frame; the surface of the armrest is provided with an adjusting mechanism for adjusting the rotation of the backrest; the left side and the right side of the rear end of the backrest are symmetrically and fixedly connected with a handle, and the surface of the handle is in threaded fit with a threaded cylinder; the device convenient to use, easy operation can massage the patient when removing the distraction, can adjust the angle of back, can be so that the patient can be after sitting tired, can adjust comfortable angle with the back and lie down.

Description

Pressure injury prevention wheelchair
Technical Field
The invention relates to the field of medical instruments, in particular to a pressure injury prevention wheelchair.
Background
Pressure injuries, also known as pressure sores or pressure sores, are localized injuries to the carina or skin and deep soft tissue associated with medical devices due to pressure or a combination of pressure and shear forces, and most preferably occur in the sacral tail as an intact skin or open ulcer. The prevalence rate of global stress injury is 12.8%, and the prevalence rate of hospital-acquired stress injury of adult patients is 8.5%. The research and research in China shows that the prevalence rate of the pressure injury is about 12 percent in a general ward, 22 percent in an old-age care institution and 23 percent in an emergency care ward. The occurrence of the pressure injury often brings serious consequences to patients, and it is reported that more than one pressure injury in inpatients leads to 2.81 times of increase of death risk in hospital, 1.69 times of death risk in 30 days of discharge and 1.33 times of readmission rate in 30 days, which also leads to the pressure injury becoming one of the most common adverse events in inpatients all over the world at present.
The existing wheelchair is simple in structure and less in function, when a patient sits on the wheelchair for a long time, the leg, the hip and the back of the patient can receive pressure all the time, the patient gets off the wheelchair to easily cause muscle atrophy or pressure damage for a long time, and meanwhile, when the patient sits on the wheelchair for a long time, other people are required to lift the bed to relieve the fatigue of the patient, so that the wheelchair is inconvenient for the patient and other people.
Accordingly, the present invention is directed to a wheelchair for preventing pressure damage that solves the above-mentioned problems of the prior art.
Disclosure of Invention
The invention aims to provide a pressure injury prevention wheelchair to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the pressure damage prevention wheelchair comprises a support frame, wherein idler wheels are symmetrically and rotatably connected to the left side and the right side of the rear side of the support frame, and universal wheels are symmetrically and rotatably connected to the bottom ends of the left side and the right side of the front side of the support frame; the upper end of the supporting frame is fixedly connected with a cushion, the rear end of the cushion is rotatably connected with a backrest, the front part of the cushion is fixedly connected with a foot pad frame, and the bottom of the foot pad frame is fixedly connected with a foot pad; the left side and the right side of the upper end of the cushion are symmetrically and fixedly connected with armrests; massage mechanisms for preventing pressure injury are arranged at the bottom end of the cushion and the back end of the backrest; a driving mechanism for driving the massage mechanism to massage is arranged in the support frame; the surface of the armrest is provided with an adjusting mechanism for adjusting the rotation of the backrest; the left side and the right side of the rear end of the backrest are symmetrically and fixedly connected with handles, and the surfaces of the handles are in threaded fit with threaded cylinders.
As a further scheme of the invention: the driving mechanism comprises a rotating rod, a fixing plate, a first synchronizing wheel, a first rectangular telescopic rod, a first bevel gear, a second bevel gear, a first belt pulley, a second belt pulley, a first belt, a connecting frame and a threaded rod; the driving mechanism can drive the massage mechanism to automatically massage the patient when pushing the device, so that energy can be effectively saved.
As a still further scheme of the invention: the rotating rod is fixedly connected with the rollers on the left side and the right side, and the first belt pulley is fixedly connected with the rotating rod; the fixed plate is fixedly connected with the support frame, the first synchronous wheels are positioned at the left side and the right side of the fixed plate and are rotationally connected with the fixed plate, the front end of the first rectangular telescopic rod is fixedly connected with the first synchronous wheels, the rear end of the first rectangular telescopic rod is fixedly connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, the second bevel gears at the left side and the right side are fixedly connected with a second belt pulley, and the first belt pulley and the second belt pulley are meshed with a first belt; the threaded rod is rotatably connected with the fixed plate and the support frame, the connecting frame is in threaded fit with the threaded rod, and the first bevel gear and the second bevel gear are both rotatably connected with the connecting frame; can drive the gyro wheel through promoting the device and rotate, can drive first belt pulley rotation through the dwang when the gyro wheel rotates, first belt pulley drives the second belt pulley through first belt and rotates, and the second belt pulley drives the second bevel gear rotation of the left and right sides, and second bevel gear drives first bevel gear and rotates, and first bevel gear can drive first synchronizing wheel through first rectangle telescopic link and rotate.
As a still further scheme of the invention: the massage mechanism comprises a second synchronous wheel, a first synchronous belt, a first crankshaft, a second crankshaft, a fixed block, a sliding plate, a massage block, a second rectangular telescopic rod, a universal joint and a connecting rod; the massage mechanism can massage the parts of the legs, the buttocks and the back of the patient, which are pressed for a long time, so that the pressure injury of the patient can be effectively avoided.
As a still further scheme of the invention: the first crankshaft and the second crankshaft are respectively and rotatably connected with the fixed block at the bottom end of the cushion and the fixed block at the rear end of the backrest; the second synchronizing wheel is fixedly connected with the first crankshaft, and the second synchronizing wheel and the first synchronizing wheel are both meshed with the first synchronizing belt; the rear end of the first crankshaft and the bottom end of the second crankshaft are fixedly connected with a second rectangular telescopic rod, the other end of the second rectangular telescopic rod is fixedly connected with a universal joint, the universal joints on the upper side and the lower side are directly provided with connecting rods, and the connecting rods are fixedly connected with the universal joints on the upper side and the lower side; the second synchronizing wheel can be driven to rotate through the first synchronous belt when the first synchronizing wheel rotates, the first crankshaft is driven to rotate when the second synchronizing wheel rotates, and the second crankshaft can be driven to rotate through the second rectangular telescopic rod, the universal joint and the connecting rod when the first crankshaft rotates.
As a still further scheme of the invention: the surfaces of the cushion and the backrest are uniformly provided with a plurality of grooves which penetrate through the cushion and the backrest, and the massage blocks are in sliding fit with the grooves; the sliding plate is connected with the cushion and the fixed blocks on the surface of the backrest in a sliding manner, the massage blocks are fixedly connected with the sliding plate, the other end of the sliding plate is uniformly and rotatably connected with a plurality of connecting rods, and the other end of each connecting rod is respectively and rotatably connected with the first crankshaft and the second crankshaft; when the first crankshaft and the second crankshaft rotate, the connecting rods on the surfaces of the first crankshaft and the second crankshaft can drive the sliding plates at the bottom end of the cushion and the rear end of the backrest to continuously slide up and down and back and forth on the surface of the fixed block, and the sliding plate at the bottom end of the cushion drives the massage blocks on the surface of the cushion to vertically slide in the grooves on the surface of the cushion to massage the legs and the buttocks of a patient; the sliding plate at the back end of the backrest drives the massage block on the surface of the backrest to slide back and forth in the groove on the surface of the backrest to massage the back of the patient.
As a still further scheme of the invention: the upper end part of the massage block is hemispherical, the upper part and the lower part of the massage block can be directly stretched and retracted, a spring is arranged between the upper part and the lower part of the massage block, and the spring is fixedly connected with the upper part and the lower part of the massage block; the massage comfort level can be effectively improved when the hemispherical massage block is contacted with a human body, and the spring in the massage block can prevent the massage block from moving too much, so that the pain of a patient is caused.
As a still further scheme of the invention: the adjusting mechanism comprises a first motor, a worm wheel, a third synchronous wheel and a second synchronous belt; the worm wheel is meshed with the worm, the worm wheel is fixedly connected with the joint of the left side and the right side of the backrest and the support frame, the worm is rotatably connected with the armrest and the support frame, the third synchronizing wheel is fixedly connected with the worm, and the third synchronizing wheels on the left side and the right side are both meshed with the second synchronous belt; the surface of the left handrail is fixedly connected with a first motor, and the bottom end of an output shaft of the first motor is fixedly connected with a left worm; the worm is driven to rotate through the first motor, the worm drives the third synchronous wheel at the bottom end of the worm to rotate, the third synchronous wheel on the left side can drive the third synchronous wheel on the right side to rotate through the second synchronous belt, the worms on the left side and the right side can rotate simultaneously under the action of the third synchronous wheels on the left side and the right side, and the worm can drive the backrest to rotate relative to the cushion through the worm wheel.
As a still further scheme of the invention: the rear end surface of the fixed plate is fixedly connected with a second motor, the right end of an output shaft of the second motor is fixedly connected with a third belt pulley, the third belt pulley is driven by a second belt to form a fourth belt pulley, and the fourth belt pulley is fixedly connected with a second belt pulley; the distance between the second belt pulley and the first belt pulley is equal to the distance between the third belt pulley and the fourth belt pulley, and the length of the second belt is greater than that of the first belt; when the patient wants the massage but can't remove the device, can drive the link rearward movement through rotating the threaded rod, second belt pulley and the fourth belt pulley that can drive its surface when the link removes backward movement simultaneously, first belt between second belt pulley and the first belt pulley begins to relax this moment, second belt between third belt pulley and the fourth belt pulley begins to take-up simultaneously, start the second motor this moment, the second motor drives the third belt pulley and rotates, the third belt pulley can drive the fourth belt pulley through the second belt and rotate, can make this actuating mechanism drive massage mechanism massage when the fourth belt pulley rotates.
Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
when the device is pushed to bring a patient to loose the heart, the roller can rotate, the roller drives the rotating rod to rotate when rotating, the rotating rod drives the first belt pulley to rotate, the first belt pulley drives the second belt pulley to rotate through the first belt, the second belt pulley drives the second bevel gear to rotate, the second bevel gear drives the first synchronous wheel to rotate through the first bevel gear and the first rectangular telescopic rod, the first synchronous wheel drives the second synchronous wheel to rotate through the first synchronous belt, the second synchronous wheel drives the first crankshaft and the second crankshaft to rotate, and the first crankshaft and the second crankshaft can drive the sliding plate to continuously drive the sliding plate to slide according to the module at the bottom end of the cushion and the rear end of the backrest so as to massage the patient; the device can enable the worms on the left side and the right side to rotate by starting the first motor, and the worms on the left side and the right side can adjust the backrest to a horizontal position through the worm wheel, so that a patient can lie down when sitting up; the positions of the second belt pulley and the fourth belt pulley can be adjusted by rotating the threaded rod, when the second belt pulley moves backwards, the first belt is loosened, and the second belt is tightened, so that the massage mechanism of the device can be controlled by the second motor; the device convenient to use, easy operation can massage the patient when removing the distraction, and the effectual muscle atrophy that prevents the patient and the patient receive the pressure nature damage, can adjust the angle of back simultaneously, can make the patient can be after sitting tired, can adjust comfortable angle with the back and lie down.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic rear view of the present invention;
FIG. 3 is a schematic view of the overall split structure of the present invention;
FIG. 4 is a schematic view of the driving mechanism of the present invention;
FIG. 5 is a schematic view of the massage mechanism of the present invention;
FIG. 6 is an enlarged view of A in FIG. 5;
fig. 7 is a structural view of a massage block in a partial sectional view according to the present invention.
In the figure: 1-support frame, 2-rolling wheel, 3-universal wheel, 4-cushion, 5-backrest, 6-foot cushion frame, 7-foot cushion, 8-handrail, 9-handle, 10-screw tube, 11-rotating rod, 12-fixed plate, 13-first synchronous wheel, 14-first rectangular telescopic rod, 15-first bevel gear, 16-second bevel gear, 17-first belt pulley, 18-second belt pulley, 19-first belt, 20-connecting frame, 21-threaded rod, 22-second synchronous wheel, 23-first synchronous belt, 24-first crankshaft, 25-second crankshaft, 26-fixed block, 27-sliding plate, 28-massage block, 29-second rectangular telescopic rod, 30-universal joint, 31-connecting rod, 32-groove, 33-connecting rod, 34-spring, 35-first motor, 36-worm, 37-worm wheel, 38-third synchronous wheel, 39-second synchronous belt, 40-second motor, 41-third belt pulley, 42-second belt, 43-fourth belt pulley.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1 to 7, in the embodiment of the invention, the pressure damage prevention wheelchair comprises a support frame 1, wherein the left side and the right side of the rear side of the support frame 1 are symmetrically and rotatably connected with rollers 2, and the bottom ends of the left side and the right side of the front side of the support frame 1 are symmetrically and rotatably connected with universal wheels 3; the upper end of the support frame 1 is fixedly connected with a cushion 4, the rear end of the cushion 4 is rotatably connected with a backrest 5, the front part of the cushion 4 is fixedly connected with a foot pad frame 6, and the bottom of the foot pad frame 6 is fixedly connected with a foot pad 7; the left side and the right side of the upper end of the cushion 4 are symmetrically and fixedly connected with armrests 8; the bottom end of the cushion 4 and the back end of the backrest 5 are both provided with massage mechanisms for preventing pressure injury; a driving mechanism for driving the massage mechanism to massage is arranged in the support frame 1; the surface of the armrest 8 is provided with an adjusting mechanism for adjusting the rotation of the backrest 5; the left side and the right side of the rear end of the backrest 5 are symmetrically and fixedly connected with handles 9, and threaded cylinders 10 are in threaded fit with the surfaces of the handles 9.
In this embodiment: the driving mechanism comprises a rotating rod 11, a fixing plate 12, a first synchronous wheel 13, a first rectangular telescopic rod 14, a first bevel gear 15, a second bevel gear 16, a first belt pulley 17, a second belt pulley 18, a first belt 19, a connecting frame 20 and a threaded rod 21; the driving mechanism can drive the massage mechanism to automatically massage the patient when pushing the device, so that energy can be effectively saved.
In this embodiment: the rotating rod 11 is fixedly connected with the rollers 2 at the left side and the right side, and the first belt pulley 17 is fixedly connected with the rotating rod 11; the fixed plate 12 is fixedly connected with the support frame 1, the first synchronizing wheels 13 are positioned at the left side and the right side of the fixed plate 12, the first synchronizing wheels 13 are rotatably connected with the fixed plate 12, the front end of the first rectangular telescopic rod 14 is fixedly connected with the first synchronizing wheels 13, the rear end of the first rectangular telescopic rod 14 is fixedly connected with the first bevel gear 15, the first bevel gear 15 is meshed with the second bevel gear 16, the second bevel gears 16 at the left side and the right side are fixedly connected with the second belt pulley 18, and the first belt pulley 17 and the second belt pulley 18 are meshed with the first belt 19; the threaded rod 21 is rotatably connected with the fixed plate 12 and the support frame 1, the connecting frame 20 is in threaded fit with the threaded rod 21, and the first bevel gear 15 and the second bevel gear 16 are rotatably connected with the connecting frame 20; can drive gyro wheel 2 and rotate when promoting the device, can drive first belt pulley 17 through dwang 11 and rotate when gyro wheel 2 rotates, and first belt pulley 17 drives second belt pulley 18 through first belt 19 and rotates, and second belt pulley 18 drives the second bevel gear 16 rotation of the left and right sides, and second bevel gear 16 drives first bevel gear 15 and rotates, and first bevel gear 15 can drive first synchronizing wheel 13 through first rectangle telescopic link 14 and rotate.
In this embodiment: the massage mechanism comprises a second synchronous wheel 22, a first synchronous belt 23, a first crankshaft 24, a second crankshaft 25, a fixed block 26, a sliding plate 27, a massage block 28, a second rectangular telescopic rod 29, a universal joint 30 and a connecting rod 31; the massage mechanism can massage the parts of the legs, the buttocks and the back of the patient, which are pressed for a long time, so that the pressure injury of the patient can be effectively avoided.
In this embodiment: the fixed blocks 26 are arranged in a plurality and fixedly connected with the bottom end of the cushion 4 and the rear end of the backrest 5, and the first crankshaft 24 and the second crankshaft 25 are respectively and rotatably connected with the fixed block 26 at the bottom end of the cushion 4 and the fixed block 26 at the rear end of the backrest 5; the second synchronizing wheel 22 is fixedly connected with the first crankshaft 24, and both the second synchronizing wheel 22 and the first synchronizing wheel 13 are meshed with the first synchronizing belt 23; the rear end of the first crankshaft 24 and the bottom end of the second crankshaft 25 are fixedly connected with a second rectangular telescopic rod 29, the other end of the second rectangular telescopic rod 29 is fixedly connected with universal joints 30, the universal joints 30 on the upper side and the lower side are directly provided with connecting rods 31, and the connecting rods 31 are fixedly connected with the universal joints 30 on the upper side and the lower side; when the first synchronous wheel 13 rotates, the first synchronous wheel 23 can drive the second synchronous wheel 22 to rotate, when the second synchronous wheel 22 rotates, the first crankshaft 24 is driven to rotate, and when the first crankshaft 24 rotates, the second crankshaft 25 can be driven to rotate through the second rectangular telescopic rod 29, the universal joint 30 and the connecting rod 31.
In this embodiment: the surfaces of the cushion 4 and the backrest 5 are uniformly provided with a plurality of grooves 32 which penetrate through the cushion 4 and the backrest 5, and the massage blocks 28 are in sliding fit with the grooves 32; the sliding plate 27 is slidably connected with the fixed blocks 26 on the surfaces of the cushion 4 and the backrest 5, the massage block 28 is fixedly connected with the sliding plate 27, the other end of the sliding plate 27 is uniformly and rotatably connected with a plurality of connecting rods 33, and the other ends of the connecting rods 33 are respectively and rotatably connected with the first crankshaft 24 and the second crankshaft 25; when the first crankshaft 24 and the second crankshaft 25 rotate, the sliding plates 27 at the bottom end of the cushion 4 and the rear end of the backrest 5 can be driven by the connecting rods 33 on the surfaces of the first crankshaft 24 and the second crankshaft 25 to continuously slide up and down and back and forth on the surface of the fixed block 26, and the sliding plates 27 at the bottom end of the cushion 4 drive the massage blocks 28 on the surface of the cushion 4 to slide up and down in the grooves 32 on the surface of the cushion 4 to massage the legs and the buttocks of the patient; the sliding plate 27 at the rear end of the backrest 5 drives the massage blocks 28 on the surface to slide back and forth in the groove 32 on the surface of the backrest 5 to massage the back of the patient.
In this embodiment: the upper end part of the massage block 28 is hemispherical, the upper part and the lower part of the massage block 28 can be directly stretched and contracted, a spring 34 is arranged between the upper part and the lower part of the massage block 28, and the spring 34 is fixedly connected with the upper part and the lower part of the massage block 28; the massage comfort degree can be effectively improved when the hemispherical massage block 28 is contacted with a human body, and the spring 34 in the massage block 28 can prevent the massage block 28 from moving too far, so that pain is caused to a patient.
In this embodiment: the adjusting mechanism comprises a first motor 35, a worm 36, a worm wheel 37, a third synchronous wheel 38 and a second synchronous belt 39; the worm wheel 37 is meshed with the worm 36, the worm wheel 37 is fixedly connected with the joint of the left side and the right side of the backrest 5 and the support frame 1, the worm 36 is rotatably connected with the armrest 8 and the support frame 1, the third synchronous wheel 38 is fixedly connected with the worm 36, and the third synchronous wheels 38 on the left side and the right side are meshed with the second synchronous belt 39; the surface of the left handrail 8 is fixedly connected with a first motor 35, and the bottom end of an output shaft of the first motor 35 is fixedly connected with a left worm 36; the worm 36 is driven to rotate by the first motor 35, the worm 36 drives the third synchronizing wheel 38 at the bottom end of the worm 36 to rotate, the third synchronizing wheel 38 on the left side can drive the third synchronizing wheel 38 on the right side to rotate by the second synchronizing belt 39, the worms 36 on the left side and the right side can simultaneously rotate under the action of the third synchronizing wheels 38 on the left side and the right side, and the worm 36 can drive the backrest 5 to rotate relative to the seat cushion 4 through the worm wheel 37.
In this embodiment: the surface of the rear end of the fixed plate 12 is fixedly connected with a second motor 40, the right end of an output shaft of the second motor 40 is fixedly connected with a third belt pulley 41, the third belt pulley 41 is driven by a second belt 42 to form a fourth belt pulley 43, and the fourth belt pulley 43 is fixedly connected with the second belt pulley 18; the distance between the second pulley 18 and the first pulley 17 is equal to the distance between the third pulley 41 and the fourth pulley 43, and the length of the second belt 42 is greater than the length of the first belt 19; when a patient wants to massage but cannot move the device, the connecting frame 20 can be driven to move backwards by rotating the threaded rod 21, the connecting frame 20 can drive the second belt pulley 18 and the fourth belt pulley 43 on the surfaces of the connecting frame to move backwards simultaneously, the first belt 19 between the second belt pulley 18 and the first belt pulley 17 starts to be loosened, the second belt 42 between the third belt pulley 41 and the fourth belt pulley 43 starts to be tensioned, the second motor 40 is started at the moment, the second motor 40 drives the third belt pulley 41 to rotate, the third belt pulley 41 can drive the fourth belt pulley 43 to rotate through the second belt 42, and the driving mechanism can drive the massage mechanism to massage when the fourth belt pulley 43 rotates.
The working principle of the invention is as follows:
when a user uses the device, the device can be pushed to move through the handle 9 and the threaded cylinder 10, when the device moves, the roller 2 rotates, when the roller 2 rotates, the first belt pulley 17 can be driven to rotate through the rotating rod 11, the first belt pulley 17 drives the second belt pulley 18 to rotate through the first belt 19, the second belt pulley 18 drives the second bevel gears 16 on the left side and the right side to rotate, the second bevel gears 16 drive the first bevel gears 15 to rotate, the first bevel gears 15 can drive the first synchronous wheels 13 to rotate through the first rectangular telescopic rods 14, when the first synchronous wheels 13 rotate, the second synchronous wheels 22 can be driven to rotate through the first synchronous belts 23, when the second synchronous wheels 22 rotate, the first crankshaft 24 rotates, and when the first crankshaft 24 rotates, the second crankshaft 25 can be driven to rotate through the second rectangular telescopic rods 29, the universal joints 30 and the connecting rods 31; when the first crankshaft 24 and the second crankshaft 25 rotate, the sliding plates 27 at the bottom end of the cushion 4 and the rear end of the backrest 5 can be driven by the connecting rods 33 on the surfaces of the first crankshaft 24 and the second crankshaft 25 to continuously slide up and down and back and forth on the surface of the fixed block 26, and the sliding plates 27 at the bottom end of the cushion 4 drive the massage blocks 28 on the surface of the cushion 4 to slide up and down in the grooves 32 on the surface of the cushion 4 to massage the legs and the buttocks of the patient; the sliding plate 27 at the rear end of the backrest 5 drives the massage block 28 on the surface of the backrest 5 to slide back and forth in the groove 32 on the surface of the backrest 5 to massage the back of the patient;
when the patient does not want to massage when the device is moved, the connecting frame 20 can be driven to move backwards by rotating the threaded rod 21, and the connecting frame 20 can drive the second belt pulley 18 and the fourth belt pulley 43 on the surfaces to move backwards simultaneously when moving, at the same time, the first belt 19 between the second belt pulley 18 and the first belt pulley 17 starts to be loosened, and the second belt 42 between the third belt pulley 41 and the fourth belt pulley 43 starts to be tightened; when the first belt 19 is loosened and the device is pushed, the rotating rod 11 and the first belt pulley 17 cannot drive the second belt pulley 18 to rotate;
when a patient cannot move in the device and wants to massage, the threaded rod 21 is rotated to tighten the second belt 42, then the second motor 40 is started, the second motor 40 drives the third belt pulley 41 to rotate, the third belt pulley 41 can drive the fourth belt pulley 43 to rotate through the second belt 42, and the fourth belt pulley 43 drives the second bevel gears 16 on the left side and the right side to rotate, so that the whole driving mechanism can drive the massage mechanism to massage;
when a patient sits up, the threaded cylinder 10 on the surface of the handle 9 is rotated firstly, the threaded cylinder 10 rotates backwards for a certain distance, then the first motor 35 is started, the first motor 35 drives the worm 36 to rotate, the worm 36 drives the third synchronizing wheel 38 at the bottom end of the worm 36 to rotate, the third synchronizing wheel 38 on the left side can drive the third synchronizing wheel 38 on the right side to rotate through the second synchronizing belt 39, the worms 36 on the left side and the right side can rotate simultaneously under the action of the third synchronizing wheels 38 on the left side and the right side, the worm 36 can drive the backrest 5 to rotate relative to the cushion 4 through the worm wheel 37, the backrest 5 can be leveled, the patient can lie down at the moment, and the threaded cylinder 10 at the rear end of the backrest 5 can play a role in supporting the backrest 5.

Claims (9)

1. Prevent pressure nature damage wheelchair, including support frame (1), its characterized in that: the left side and the right side of the rear side of the support frame (1) are symmetrically and rotatably connected with rollers (2), and the bottom ends of the left side and the right side of the front side of the support frame (1) are symmetrically and rotatably connected with universal wheels (3); the upper end of the support frame (1) is fixedly connected with a cushion (4), the rear end of the cushion (4) is rotatably connected with a backrest (5), the front part of the cushion (4) is fixedly connected with a foot pad frame (6), and the bottom of the foot pad frame (6) is fixedly connected with a foot pad (7); the left side and the right side of the upper end of the cushion (4) are symmetrically and fixedly connected with armrests (8); massage mechanisms for preventing pressure injury are arranged at the bottom end of the seat cushion (4) and the rear end of the backrest (5); a driving mechanism for driving the massage mechanism to massage is arranged in the support frame (1); the surface of the armrest (8) is provided with an adjusting mechanism for adjusting the rotation of the backrest (5); the left side and the right side of the rear end of the backrest (5) are symmetrically and fixedly connected with handles (9), and threaded cylinders (10) are in threaded fit with the surfaces of the handles (9).
2. The pressure injury resistant wheelchair of claim 1, wherein: the driving mechanism comprises a rotating rod (11), a fixing plate (12), a first synchronous wheel (13), a first rectangular telescopic rod (14), a first bevel gear (15), a second bevel gear (16), a first belt pulley (17), a second belt pulley (18), a first belt (19), a connecting frame (20) and a threaded rod (21).
3. The pressure injury resistant wheelchair of claim 2, wherein: the rotating rod (11) is fixedly connected with the rollers (2) on the left side and the right side, and the first belt pulley (17) is fixedly connected with the rotating rod (11); the fixed plate (12) is fixedly connected with the support frame (1), the first synchronous wheels (13) are positioned at the left side and the right side of the fixed plate (12), the first synchronous wheels (13) are rotatably connected with the fixed plate (12), the front end of the first rectangular telescopic rod (14) is fixedly connected with the first synchronous wheels (13), the rear end of the first rectangular telescopic rod (14) is fixedly connected with the first bevel gear (15), the first bevel gear (15) is meshed with the second bevel gear (16), the second bevel gears (16) at the left side and the right side are fixedly connected with the second belt pulley (18), and the first belt pulley (17) and the second belt pulley (18) are meshed with the first belt (19); the threaded rod (21) is rotatably connected with the fixing plate (12) and the support frame (1), the connecting frame (20) is in threaded fit with the threaded rod (21), and the first bevel gear (15) and the second bevel gear (16) are rotatably connected with the connecting frame (20).
4. The pressure injury resistant wheelchair of claim 2, wherein: the massage mechanism comprises a second synchronizing wheel (22), a first synchronizing belt (23), a first crankshaft (24), a second crankshaft (25), a fixed block (26), a sliding plate (27), a massage block (28), a second rectangular telescopic rod (29), a universal joint (30) and a connecting rod (31).
5. The pressure injury resistant wheelchair of claim 2, wherein: the plurality of fixed blocks (26) are fixedly connected with the bottom end of the cushion (4) and the rear end of the backrest (5), and the first crankshaft (24) and the second crankshaft (25) are respectively in rotating connection with the fixed blocks (26) at the bottom end of the cushion (4) and the fixed blocks (26) at the rear end of the backrest (5); the second synchronizing wheel (22) is fixedly connected with the first crankshaft (24), and the second synchronizing wheel (22) and the first synchronizing wheel (13) are both meshed with the first synchronizing belt (23); first bent axle (24) rear end and second bent axle (25) bottom all with second rectangle telescopic link (29) fixed connection, second rectangle telescopic link (29) other end and universal joint (30) fixed connection, upper and lower both sides universal joint (30) directly are equipped with connecting rod (31), universal joint (30) fixed connection of connecting rod (31) and upper and lower both sides.
6. The pressure injury resistant wheelchair of claim 4, wherein: the surfaces of the cushion (4) and the backrest (5) are uniformly provided with a plurality of grooves (32) which penetrate through the cushion (4) and the backrest (5), and the massage blocks (28) are in sliding fit with the grooves (32); the novel massage chair is characterized in that the sliding plate (27) is in sliding connection with fixed blocks (26) on the surfaces of the cushion (4) and the backrest (5), the massage blocks (28) are fixedly connected with the sliding plate (27), the other end of the sliding plate (27) is uniformly and rotatably connected with a plurality of connecting rods (33), and the other ends of the connecting rods (33) are respectively and rotatably connected with the first crankshaft (24) and the second crankshaft (25).
7. The pressure injury resistant wheelchair of claim 4, wherein: the upper end part of the massage block (28) is hemispherical, the upper part and the lower part of the massage block (28) can be directly stretched and contracted, a spring (34) is arranged between the upper part and the lower part of the massage block (28), and the spring (34) is fixedly connected with the upper part and the lower part of the massage block (28).
8. The pressure injury resistant wheelchair of claim 1, wherein: the adjusting mechanism comprises a first motor (35), a worm (36), a worm wheel (37), a third synchronous wheel (38) and a second synchronous belt (39); the worm wheel (37) is meshed with the worm (36), the connecting parts of the left side and the right side of the worm wheel (37) and the backrest (5) and the support frame (1) are fixedly connected, the worm (36) is rotatably connected with the armrest (8) and the support frame (1), the third synchronizing wheel (38) is fixedly connected with the worm (36), and the third synchronizing wheels (38) on the left side and the right side are meshed with the second synchronous belt (39); the surface of the left handrail (8) is fixedly connected with a first motor (35), and the bottom end of an output shaft of the first motor (35) is fixedly connected with a left worm (36).
9. The pressure injury resistant wheelchair of claim 2, wherein: the rear end surface of the fixed plate (12) is fixedly connected with a second motor (40), the right end of an output shaft of the second motor (40) is fixedly connected with a third belt pulley (41), the third belt pulley (41) is driven by a second belt (42) to form a fourth belt pulley (43), and the fourth belt pulley (43) is fixedly connected with a second belt pulley (18); the distance between the second belt pulley (18) and the first belt pulley (17) is equal to the distance between the third belt pulley (41) and the fourth belt pulley (43), and the length of the second belt (42) is greater than the length of the first belt (19).
CN202111020650.9A 2021-09-01 2021-09-01 Wheelchair capable of preventing pressure injury Active CN113855411B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115337173A (en) * 2022-08-03 2022-11-15 淮安市中医院 Anus postoperative pressure pad and comfort level adjusting device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209474998U (en) * 2018-07-06 2019-10-11 常州市第一人民医院 A kind of wheelchair
CN110403776A (en) * 2019-08-22 2019-11-05 大连理工大学 A kind of multifunctional intellectual wheelchair
CN112472439A (en) * 2021-01-11 2021-03-12 南京陌上星商贸有限公司 Electric wheelchair with paralysis rehabilitation massage function
CN213283868U (en) * 2020-04-20 2021-05-28 贺结硕 Wheelchair with leg massage structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209474998U (en) * 2018-07-06 2019-10-11 常州市第一人民医院 A kind of wheelchair
CN110403776A (en) * 2019-08-22 2019-11-05 大连理工大学 A kind of multifunctional intellectual wheelchair
CN213283868U (en) * 2020-04-20 2021-05-28 贺结硕 Wheelchair with leg massage structure
CN112472439A (en) * 2021-01-11 2021-03-12 南京陌上星商贸有限公司 Electric wheelchair with paralysis rehabilitation massage function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115337173A (en) * 2022-08-03 2022-11-15 淮安市中医院 Anus postoperative pressure pad and comfort level adjusting device
CN115337173B (en) * 2022-08-03 2024-01-26 淮安市中医院 Anus postoperative pressure pad and comfort level adjusting device

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