International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 03 | Mar -2017
p-ISSN: 2395-0072
www.irjet.net
Automated Wheelchair Convertible Stretcher – A Review Smitesh Bobde1, Shubham Deshmukh2, Tejas Deshmukh2, Rohan Damle2 1Assistant
Professor, Department of Mechanical Engineering, Dr. Babasaheb Ambedkar College of Engineering and Research, Nagpur, Maharashtra. India. 2Student, Department of Mechanical Engineering, Dr. Babasaheb Ambedkar College of Engineering and Research, Nagpur, Maharashtra. India. ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - The problem of shifting the patients exists from
• To save space. • To save the precluding exertion by the patient.
prehistoric times. People who get seriously injured or ill were carried by others by means of wooden stretcher with cloth or leather tied to it. Later they were carried on wheels which reduced the effort of the person carrying the patients. Though we have evolved in the field of healthcare and technology we are not yet able to address this problem efficiently.
2. LITERATURE REVIEW The author in [1] gives us various concepts regarding wheelchair convertible stretcher. Concept 1 enlightens us about a sliding tubular frame which is attached to the back rest of the wheelchair. A handle is provided in the back rest so that the user can pull it easily and can convert it into stretcher. Concept 3 gives us an insight to the hydraulic scissor lifter mechanism, so that the height can be adjusted according to the user’s convenience. A hydraulic scissor lifter mechanism lifts the entire wheelchair into stretcher. Concept 5 is based on the gear mechanism. According to the rotation of the middle wheel, the front and back seats are rotated in opposite direction and stretcher arrangement is achieved.
Mobility aids are used for carrying the patients. Wheelchairs and stretchers are the most generally used mobility aids for the movement of patients. Transferring the patients from wheelchair to stretcher or to the medical bed or vice versa is always an issue for the attendant or nurse. There is a wide range of wheelchairs available today driven by needs and desire of man. Hence we suggest a design of wheelchair convertible stretcher which is a boon to the medical field. It would be maintained and operated easily either by the patient or by the attendant according to the comfort of the patient.
The authors in [2] utilizes electric power to showcase the conversion of wheelchair into a temporary bed. A new type of electric wheelchair which can support bedridden patients. The wheelchair used in this study was an electric wheelchair made by Kawamura Cycle Co., Ltd. (model KE15). A joystick controls the velocity, and the motor rated output is 192 W (24 V).
Key Words: Wheelchair, Stretcher, Review, Wheelchair convertible stretcher, Mobility aid, Healthcare.
1. INTRODUCTION In easy words a wheelchair can is a structure having a set of wheels attached to a chair. Wheelchair is an equipment which can empower and enable a person with a disability to live a normal and independent life. For the past years wheelchairs have evolved rapidly from the manual wheelchairs to the powered wheelchairs. Still these wheelchairs have not satisfied the needs of the disabled people. It is therefore crucial that the problems of disabled be understood and accordingly wheelchairs are to be developed fulfilling their needs. So we have done a review based on multipurpose wheelchair that can work as wheelchair as well as a Stretcher. This paper is the result of a review of the design and development of a multi-functional Wheelchair that would perform all the required functions.
The authors in [3] gives us an insight into how we can utilize a mechanism for the aforesaid conversion. The paper gives us an insight into the utilization of mechanism based concepts. Concept 1 in this concept the person can move to the bed using the leg support pad which is extended by a pneumatic cylinder. Concept 2 in this concept the person moves onto bed by a conveyor mechanism which pushes him forward. The chair has guides and can revolve about itself giving the user 360 degree accessibility. Concept 3 in this concept the wheelchair has a movable and extendable board. The person can transfer himself from this board to the bed. Concept 4 this wheelchair has the provision of moving the backrest and resting it onto the bed. The person can slide over the backrest to the bed in backward direction. The authors in [4] have utilized pneumatic power for the conversion of wheelchair into stretcher or vice versa. The authors in [5] have used the concepts of electronics in their paper.
1.1 Objective • To decrease the cost by selecting the type of mechanism. • To work reliably under different operating conditions.
© 2017, IRJET
|
Impact Factor value: 5.181
|
ISO 9001:2008 Certified Journal
|
Page 893