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55 results about "Sit up exercise" patented technology

The sit-up (or curl-up) is an abdominal endurance training exercise commonly performed to strengthen and tone the abdominal muscles.

Novel closestool convenient for old people and pregnant women to sit up

The invention relates to the technical field of sanitary equipment, in particular to a novel closestool convenient for old people and pregnant women to sit up, which comprises a closestool body and abase arranged at the bottom of the closestool body, an auxiliary sitting-up mechanism is arranged on the side surface of the closestool body, and the upper end of the auxiliary sitting-up mechanism isconnected with a support seat ring; the supporting seat ring is arranged on the closestool body, the lifting pedal mechanism is arranged at the front end of the closestool body, the auxiliary standing and sitting mechanism and the lifting pedal mechanism are both connected with the control assembly, the control assembly is arranged in the base, the handrail is connected to the upper end of the auxiliary standing and sitting mechanism, and the controller is arranged on the handrail. And the controller is connected with the control assembly. The problems that in the prior art, old people, pregnant women and other groups sit up inconveniently when using a seat type closestool and defecation is not smooth due to the fact that the seat type closestool is used are solved, and use is convenient.
Owner:中原科技学院

Training bed

The invention provides a training bed. The training bed comprises a headboard (600), a bed board (500), a bed frame, a connecting mechanism and a braking mechanism, wherein the headboard (600), the bed board (500) and the bed frame are connected through the connecting mechanism, the bed frame is arranged on the bottom side of the bed board (500), the headboard (600) is arranged on the two sides of the bed board (500), the bed frame comprises a main body frame (300), a bottom frame (200) and a bottom frame sliding structure (100), and the bottom frame (200) is located between the main body frame (300) and the bottom frame sliding structure (100). The object of the invention is to realize the movement of each motor on the training bed through automatic intelligent control, so as to allow a patient to lift legs, sit up and stand, so that the whole body of the patient can be exercised and stretched, and the recovery of the movement function of the patient is promoted.
Owner:上海诺昊医疗科技有限公司

Exoskeleton appliance assisting human body support and helping people to sit up

The invention discloses an exoskeleton appliance assisting human body support and helping people to sit up. The exoskeleton appliance comprises a waist assembly, a thigh assembly, a shank assembly anda support assembly, wherein the support assembly comprises a thigh fixing plate fixed at the rear part of the thigh assembly and a shank fixing plate fixed at the rear part of the shank assembly; a sliding strip rod is hinged to the bottom of the thigh fixing plate and glidingly arranged in a sliding rail; the sliding strip rod extends into the sliding rail from the upper end of the sliding railand slides in the sliding rail in a telescopic manner; a ground supporting rod is also fixed in the sliding rail; the upper end of the sliding rail is connected with the thigh fixing plate through a support rod; two ends of the support rod are hinged to the upper end of the sliding rail and the bottom of the thigh fixing plate correspondingly; the sliding rail is also connected with the shank fixing plate through a connecting rod; and two ends of the connecting rod are hinged to the sliding rail and the shank fixing plate correspondingly. The exoskeleton appliance is simple in structure, easyto produce and manufacture, low in cost and convenient to use.
Owner:YANGZHOU UNIV

Chair-type toilet

A chair-type toilet is provided with a water-saving non-return function, is provided with armrests, a back and pedals, and can be placed beside a bed. The chair-type toilet is provided to meet requirement of being close to a bed where the old, weak, sick or disabled difficult to sit up is lain, and avoid the problem that infants and children feel uncomfortable because of incapability of treading on the toilet for adults. The chair-type toilet retains the original functions of the well-known microwater non-return toilet, the siphoning type toilet or the direct-flushing toilet; through symmetrical holes are formed on two sides of the toilet body of the chair-type toilet, so as to integrate a chair rack and the toilet body; a toilet cover is changed into a folding type toilet cover; a sealed ordure storage container and a water tank combination unit are arranged; and the toilet body is heightened.
Owner:陈云河

Folding chair on bed

PendingCN106983301ASave spaceReduces the hassle of transferring to a sitting chairDismountable chairsFoldable chairsSit up exerciseClassical mechanics
The invention discloses a folding chair on a bed. The folding chair comprises a seat cushion; a back cushion is arranged behind the seat cushion; the seat cushion is connected with the back cushion through a hinge capable of rotating around an intersecting edge; a handrail is arranged on each of the two sides of the seat cushion; the seat cushion is connected with the handrail through a hinge capable of rotating around an intersecting edge; a connecting structure capable of mutually connecting the handrail and the back cushion is arranged between the handrail and the back cushion. Through providing the chair capable of being placed on the bed, good sitting and standing conditions are provided for patients lying for a long time, so that old people or the patients can conveniently sit up and can also be prevented from lying in the bed for a long term.
Owner:GONGCHENG YAO AUTONOMOUS COUNTY GONGCHENG HIGH SCHOOL

Multifunctional health-care rehabilitation chair for sitting and standing movement

InactiveCN114307075AAvoid affecting the effect of trainingAdequate trainingMuscle exercising devicesSit up exerciseEngineering
The invention belongs to the technical field of medical auxiliary equipment, and relates to a multifunctional health-care rehabilitation chair for sitting and standing movement. The two armrests are horizontally arranged on the seat, and one end of each armrest is connected to the back of the seat and hinged to the back of the seat; the two elastic assemblies are respectively arranged between the two armrests and the seat surface of the seat, each elastic assembly comprises a plurality of first elastic pieces, one end of each first elastic piece is connected to the corresponding armrest, and the other end of each first elastic piece is connected to the seat. Through the arrangement of the elastic assemblies, the upper limbs can be sufficiently trained, the situation that the training effect is affected by excessive hybridization is avoided, the training efficiency is improved, meanwhile, the lower limbs can be trained through cooperation of the first transmission rods and the elastic pieces, in addition, the device is suitable for most people, and the training effect is improved. Even people with small strength can perform rehabilitation training through the device, and the application range is wide.
Owner:HUANGHUAI UNIV

Rope-driven foldable multifunctional body-building device

The invention belongs to the physical exercise apparatus technical field, and discloses a rope-driven foldable multifunctional body-building device; the device comprises a foldable bearer fixed to theouter side and used for folding a body-building device body, and a truss type support rack as a support structure of an exercise support and that is linked to the foldable bearer in a slide mode, andrealizes a foldable effect via a self hinge structure; the exercise support is connected to the support rack in a slide mode, and capable of realizing various body building functions by changing connected body building modules; a rope power system is connected with the foldable bearer, the support rack and the exercise support in a special mode, thus realizing foldable and body building functionsof the body building device. Compared with a conventional body-building device, the device can realize functions of various body-building devices that include a weight lift, a chest expander and a dumbbell and the like, and can realize various free training functions such as pull up training, sit up training and the like; the body-building device combines a servo motor with a force sensor so as to intelligently regulate the exercise resistances without adjusting counterweight blocks, thus providing higher exercise efficiency.
Owner:XIDIAN UNIV

Abdomen massage rehabilitation device for pediatrics

The invention relates to an abdomen massage rehabilitation device, and in particular relates to an abdomen massage rehabilitation device for pediatrics. The technical problem to be solved by the invention is to provide the abdomen massage rehabilitation device, which does not influence sitting up of children and can better massage the abdomen of the children, for pediatrics. The abdomen massage rehabilitation device for pediatrics comprises a base; two supporting rods installed on the base; sliding rails mounted on the supporting rods; and a power assembly which is installed between the base and the sliding rails and is powered by a motor to work. Due to the fact that a massage roller and a supporting frame are connected in a sliding and rotating mode, the massage roller can rotate and canslide left and right, so that the massage roller can better massage a child. Meanwhile through cooperation of the massage roller and a triangular block, the massage roller can continuously move leftand right to massage the abdomen of the child.
Owner:日照市妇幼保健计划生育服务中心(日照市妇幼保健院日照市妇女儿童医院)

Rotary type double-layer electric sickbed

A rotary type double-layer electric sickbed comprises an upper frame, a seat plate is installed at the top of the upper frame, a turnover backrest assembly is installed at one end of the seat plate, a knee supporting assembly capable of being rotatably folded is installed at the other end of the seat plate, a lower frame is rotatably connected to the center of the bottom face of the upper frame, and a rotation driving assembly is installed in the lower frame and used for driving the upper frame to rotate by 90 degrees. The backrest assembly can turn over up and down, so that a lying patient can be supported to sit up, the knee supporting assembly can drive the legs of the patient to be in a bent state, the legs and the waist of the patient can be moved, and meanwhile, the backrest assembly and the knee supporting assembly can retract, and the upper frame can rotate subsequently; and the rotating driving assembly can drive the upper frame to rotate by 90 degrees, then the upper frame and the lower frame are matched to form a cross state, in this way, a patient can get out of the bed conveniently, and the flexibility of the sickbed is higher.
Owner:安徽金百合医疗器械有限公司

Magnetic sitting posture correcting trousers

InactiveCN104323486ASolve the problem of bad sitting postureGarmentsHuman bodyPhysical medicine and rehabilitation
The invention belongs to the technical field of garment design, and particularly relates to a pair of trousers for correcting sitting postures by permanent magnet material particles. Aiming at solving the technical problems of much harm, such as shortsightedness, thoracic hump and vertebral column lateral bending, to teenagers caused by poor sitting postures, the invention provides the pair of sitting posture correcting trousers, which achieves an effect of helping children to correct the sitting postures when the children wear the trousers. The trousers have the solution that permanent magnet material particles are arranged on the inner side surfaces of the knee parts of the left and right trouser legs, and when a human body sits up and the two legs are close together, the permanent magnet material particles are bonded together. The trousers have the advantages that the human engineering principle is adopted for design, the manufacturing is simple, the effect of teaching through lively activities is achieved, and the healthy growth of the children is favorably realized.
Owner:陈宾梅

Exercise devices and systems

An exercise device includes a pivot adjustably positioned at an intermediate point along the length of an elongate support element. One or more lower body supports are mounted on the elongate support element on a first side of the pivot and one or more upper body supports mounted on the elongate support on a second side of the pivot. The device may be used in push up, sit up, inverted pull up or leg raise modes.
Owner:CAMBELLE

Waist and back rehabilitation chair

The invention relates to a waist and back rehabilitation chair. The chair comprises a rack, a horizontal rack is arranged above the rack, and a slide rail is arranged on the horizontal rack; a slide block is arranged on the slide rail, a handle is fixed to the slide block, and the slide block is driven by a gear; the horizontal rack is hinged to the rack, and electric cylinders are further arranged between the horizontal rack and the rack; a seat is arranged on the rack; a backing plate is hinged to the back side of the seat on the rack, and the electric cylinders are hinged to the portion between the backing plate and the rack. The horizontal rack is hinged to the rack so that the horizontal rack can be folded, and people enter the rehabilitation chair conveniently. After the human body sits up, people hold the handle, a motor drives the slide block to move back and forth, accordingly, arms are driven to move, and stretch rehabilitation of waist and back muscle is achieved. The backing plate can be driven to be folded by the electric cylinders, and stretch rehabilitation of the waist and back muscle is conducted.
Owner:ZHEJIANG UNIV OF TECH

Rehabilitation exercise device for neurology department

The invention provides a rehabilitation exercise device for the neurology department, and relates to the technical field of medical instruments. The device comprises a seat body, the seat body comprises a seat plate, the two symmetrical ends of the seat plate are connected with a front supporting plate and a backrest plate through swinging assemblies respectively, the front supporting plate and the backrest plate can swing up and down, the other two sides of the seat plate are provided with symmetrical armrests, the seat body is provided with a plurality of massage units, and the armrests are connected with glove assemblies capable of being grabbed. When a patient does rehabilitation exercise, the rehabilitation exercise device can help the patient to sit up for training and can also serve as a rest place of the patient, the patient is prevented from being moved back and forth, the workload of medical staff is relieved, and the experience feeling of the patient is improved. The armrests can protect the patient, the grabbable glove assemblies connected to the armrests can help the patient to move finger joints of the hand, and the massage units can help the patient to dredge channels and collaterals, prevent muscle atrophy of the patient and promote recovery of limb movement functions of the patient. According to the device, the limb movement function and the daily life ability are gradually recovered through the limb function training auxiliary massage effect of the patient.
Owner:绵阳市中心医院

Auxiliary training device for patients with rheumatoid arthritis

The present invention provides an auxiliary training device for patients with rheumatoid arthritis and belongs to the technical field of medical devices. The auxiliary training device for patients with rheumatoid arthritis comprises a movable base seat, a telescopic device and a supporting device; the telescopic device comprises a fixed column, a lifting column and a screw rod mechanism, the fixedcolumn is arranged on the movable base seat, the fixed column and the lifting column are both provided with a cavity, the lifting column is arranged in the fixed column, and the screw rod mechanism is arranged in the fixed column and also drives the lifting column to move up and down; the supporting device comprises a first auxiliary supporting body and a second auxiliary supporting body, cross sections of the first auxiliary supporting body and the second auxiliary supporting body are arc-shaped structures matched with arms of a human body, arc-shaped openings of the first auxiliary supporting body and the second auxiliary supporting body are arranged upwards, one end of the first auxiliary supporting body is fixedly connected with the lifting column, and the second auxiliary supportingbody is connected with the lifting column in a sliding mode along a circumferential direction of the lifting column. The device can utilize the arms to assist patients to carry out training such as walking, stooping, squatting and sitting up, and has certain effects on alleviation of illness state and recovery.
Owner:XIAN MEDICAL UNIV

Sit-up fitness board with counting function

The invention discloses a sit-up fitness board with a counting function. A fastening knob is rotated to adjust the connecting angle of a first supporting rod and a second supporting rod through a first hinge seat and a first hinge head; then a telescopic rod and the first supporting rod are pulled through an adjusting handle to adjust the distance between a first cross rod and a second cross rod so that the fitness board is suitable for a user to use, and then the plate frame is lifted through a second hinge seat and a second hinge head; meanwhile, an adjusting rod is adjusted through a third hinge seat and a third hinge head, so that a tooth connector on the adjusting rod is clamped at a proper position of an adjusting tooth, at the moment, adjustment of the sit-up board is completed, the user clamps the shanks between the first cross rod and the second cross rod, lies in the middle of a protection strip on a leather cushion, rests the head on a cushion headrest, and then starts to do sit-ups; when a user sits up, a contact switch starts to generate a signal, the signal is transmitted to a counter for counting, then the repeated sitting-up contacts the switch to repeatedly generate signals, and digits on the counter are sequentially increased.
Owner:陕西信诺威体育用品有限公司

Trousers for correcting sitting postures

The invention belongs to the technical field of garment designs, and particularly relates to a pair of trousers for correcting sitting postures. Aiming at the technical problem that unhealthy sitting postures not only affect the images of people but also can cause lumbar and cervical vertebra diseases and lead to the myopia, humpback and scoliosis of adolescents and therefore has a lot of harm, the invention provides the trousers for correcting sitting postures, which can help a child to correct the sitting posture when worn. The solution of the invention is as follows: a hook-and-loop fastener is sewed on the inner sides of knees of a left leg and a right leg, wherein one surface is the hook surface of the hook-and-loop fastener, and the other corresponding surface is the loop surface of the hook-and-loop fastener; when the human body sits up and both legs close together, the hook surface and loop surface of the hook-and-loop fastener are stuck together. The trousers for correcting sitting postures are designed by utilizing the ergonomic principle, are easy to fabricate, can educate through entertainment, and is good for the healthy growth of the child.
Owner:陈宾梅

Device for assisting old people in sitting up through gravity center change and use method of device

The invention relates to a device for assisting old people in sitting up through gravity center change and a use method of the device. The device comprises a chair frame, a cushion assembly, a leg backrest and an upper backrest assembly, wherein handrails are arranged on the two sides of the top of the chair frame; the cushion assembly is composed of a cushion and a cushion auxiliary air spring; the rear end of the cushion is hinged to the chair frame; the two ends of the cushion auxiliary air spring are hinged to the bottom of the cushion and the rear side of the chair frame respectively; the top end of the leg backrest is hinged to the front end of the cushion; the upper backrest assembly is composed of an upper backrest and an upper backrest auxiliary air spring; the upper backrest and the chair frame are to hinged the rear portion of the cushion, and the bottom end of the upper backrest extends downwards to the position below the cushion and is hinged to the leg backrest through a connecting rod; and the two ends of the upper backrest auxiliary air spring are hinged with the back part of the upper backrest and the rear side of the chair frame respectively. Compared with the prior art, the sitting posture, the standing posture and the lying posture can be freely switched, and great benefits are brought to the later life of the old people.
Owner:上海建桥学院有限责任公司

A pediatric abdominal massage rehabilitation device

The invention relates to an abdominal massage rehabilitation device, in particular to a pediatric abdominal massage rehabilitation device. The technical problem to be solved by the present invention is to provide a pediatric abdominal massage rehabilitation device that does not affect children's sitting up and can better perform abdominal massage on children. A pediatric abdominal massage rehabilitation device, comprising: a base; a support rod, two support rods, installed on the base; a slide rail, installed on the support rod; a power assembly, installed between the base and the slide rail, Work powered by a motor. In the present invention, because the massage roller is slidably and rotationally connected with the support frame, the massage roller can rotate or slide left and right, so that the massage roller can better massage children. At the same time, through the cooperation of the massage roller and the triangular block, the massage roller can Constantly move from side to side to massage the child's abdomen.
Owner:日照市妇幼保健计划生育服务中心(日照市妇幼保健院日照市妇女儿童医院)

Mattress lifting device capable of preventing extrusion during back lifting

PendingCN114344009AOffset positional deviationEliminate stressNursing bedsHuman bodySit up exercise
A mattress lifting device capable of preventing back extrusion is characterized in that a traction rope is arranged between a mattress and a back plate, one end of the traction rope is connected with the back surface of the back mattress, and the rest part of the traction rope enters the back surface of the back plate from the position above the connecting point of the traction rope and the back surface of the mattress through a roller or in a sliding manner; rollers or rollers and fixing points are arranged on the back face of the back plate and close to the hinged position of the back plate and the bed frame, fixing points or rollers and fixing points are arranged at the corresponding positions, below the rollers, of the bed frame, and a traction cable bypasses the rollers on the back plate and then is fixed to the fixing points on the bed frame. According to the mattress lifting device capable of preventing extrusion during back lifting, the distance between the back plate and the bed frame is increased in the back lifting process, the traction rope is pulled, and the mattress is pulled to be lifted upwards, so that the position deviation of a human body with a hip joint as a rotation center and the rotation center of the back plate during passive sitting up is counteracted; serious discomfort brought to people due to downward pressing force generated by the back plate on the human body in the back lifting process is eliminated, and the human body does not slide towards the bed tail.
Owner:JIANGSU HENGAI MEDICAL EQUIP

Pregnant woman leg muscle relaxing device for medical obstetrics and gynecology department

The invention relates to a muscle relaxing device, in particular to a pregnant woman leg muscle relaxing device for medical obstetrics and gynecology. The pregnant woman leg muscle relaxing device for the medical obstetrics and gynecology department is provided with a lifting seat, a backrest can be lifted, and then a pregnant woman can lie down and sit up conveniently. According to the technical scheme, the pregnant woman leg muscle relaxing device for the medical obstetrics and gynecology department comprises a base, a first shell, a first mounting plate, a second shell, a first bottom plate, a second bottom plate, a first sponge mat and a first rotating shaft, the first shell is placed in the middle of the top of the base, and the first bottom plate is fixedly connected to the first shell; the first bottom plate is fixedly connected with a first sponge mat, and the first bottom plate is rotationally connected with a first rotating shaft. When a pregnant woman sits on the first sponge mat, then the head of the pregnant woman is placed on the second sponge mat, and the first sponge mat and the second sponge mat are both sunken, so that the effect of improving the lying comfort of the pregnant woman is achieved.
Owner:严永尽

Medical care leg bone recovery exercise device

The invention relates to an exercise device, in particular to a medical care leg bone recovery exercise device which comprises a fixing device, a massage device is arranged in the fixing device, the fixing device comprises two frame bodies, two sliding grooves are formed in the upper end and the lower end of the inner wall of each frame body, and the massage device comprises two first inserting blocks. A first fixing ring is arranged at one end of the first inserting block, a first inserting block is arranged in the sliding groove in the upper end of the first inserting block, the first inserting block is connected with the sliding groove in a sliding mode, and a first rolling wheel is arranged in the first fixing ring. According to the device, the frame body, the first roller, the secondroller, the movable plate and the handle interact with one another; The lower body of a patient is massaged while the patient sits up, the legs are subjected to medical care, meanwhile, the upper bodyis exercised, and the sit-up massage device is easy to operate, easy to use and worthy of application and popularization.
Owner:王冰

Sitting-up assisting device for old people with severe hypertension and implementation method of sitting-up assisting device

The invention discloses a sitting-up assisting device for old people with severe hypertension and an implementation method of the sitting-up assisting device, relates to the technical field of medical instruments, and solves the problems that in the prior art, many old people with hypertension lie in bed, a wearable type is inconvenient to use, sitting-up is achieved by driving the lower half part of the body, and the upper half part of the patient cannot be driven. According to the standing-up and sitting-down assisting device for the old suffering from severe hypertension and the implementation method of the standing-up and sitting-down assisting device, the nursing bed frame is arranged to install and fix the supporting plate body, the driving assembly is used for driving the supporting plate body to turn over, a patient is pushed to be adjusted to the sitting-up position from the supine position, and the old patient suffering from the severe hypertension can conveniently stand up and lie down; the driving motor drives the first rack and the second rack to move oppositely through the driving gear, the first rack and the second rack respectively drive the upper movable plate and the lower movable plate to rotate, the patient is automatically helped to sit up, force is applied to the upper body and the lower body of the patient, and labor is saved for the patient to sit up.
Owner:THE FIRST AFFILIATED HOSPITAL OF ZHENGZHOU UNIV

Auxiliary exercise fitness bed for rehabilitation department

The invention relates to a fitness bed, in particular to an auxiliary exercise fitness bed for a rehabilitation department. The technical problem is to provide the auxiliary exercise fitness bed for the rehabilitation department, which can be used for rehabilitation exercise and is convenient to operate. An auxiliary exercise body-building bed for the rehabilitation department comprises two main supports, a bed body and a bed body, the connecting arc rods are symmetrically arranged on the inner sides of the main supports; the secondary supports are connected between the bottoms of the connecting arc rods on the same side; the moving mechanism is arranged on the secondary bracket; the placing mechanism is arranged between the tops of the main supports; and the supporting mechanism is arranged between one side of the main bracket and the placing mechanism. The nursing bed has the beneficial effects that a patient lies on the first placement plate and the first hinge plate and leans against the lying plate, an electric push rod is started, and a telescopic rod of the electric push rod can drive the lying plate to turn upwards under the cooperation of a first rotating rod, a second rotating rod and a rotating point, so that the patient can sit up more conveniently.
Owner:葛忠芬

Intelligent old people assisting chair

The invention discloses an intelligent old people assisting chair. The intelligent old people assisting chair comprises armrests, a seat plate, telescopic rings, stretching rods, upper chair leg rods,wheel carriers, large pulleys, leg supporting components, leg supporting frames, pedals, chair leg rods, small pulley connecting pieces, small pulleys, Mecanum wood wheels, lower leg transverse rods,chair leg rods, chair leg protection pieces, supporting plates, motors, pinions, springs, upper chair leg rods, spring connecting rods, racks, connecting plates, side plates and a truss. The armrestsare connected with the side plates through bolts; the seat plate is arranged on the upper side of the truss and connected through screws; the stretching rods pass through the inner sides of the telescopic rings and are supported by the telescopic rings; the rear side is fastened and connected with the racks through screws; according to the intelligent old people assisting chair, old people can behelped to turn over, sit up, lie down, go to the toilet, wash and the like on the bed, expenditure can be saved, the pressure of family members can be reduced, the psychology of the old people can becomforted, and a harmonious society can be created.
Owner:SHANGHAI OCEAN UNIV

A bed and chair device for helping the elderly living alone to complete daily activities

A bed and chair device for helping an elderly person living alone to complete daily activities, comprising a stand-up device installed on a Mecanum wheel chassis, a leg movement device, an outer armrest and an inner armrest, and the outer armrest and the inner armrest are respectively installed on the getting-up device and the leg. On both sides of the mobile device, the stand-up device is provided with a roll-over bed when it is used, the elderly can turn over to the wheelchair side through the roll-over bed; through the stand-up device, the elderly can sit up from the bed; Complete complex leg activities on the bed to exercise the leg muscles; it can also cooperate with the stand-up device to achieve sitting up from the bed, standing and other actions; the inner and outer armrests can be transformed according to the state of the elderly, so as to protect the safety of the elderly in real time When the old man sits on the wheelchair, the Mecanum wheel installed on the chassis can assist the old man to move flexibly indoors and outdoors; the invention has multiple functions, is safe and convenient, can improve the quality of the old man's single life, brings convenience and ensures safety .
Owner:XI AN JIAOTONG UNIV
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