Patent ID: 6792633
Filing Date: 2004-09-21
Classification: A61G,Y10T

Abstract:
A stretcher comprising:a cart; and a frame mounted on said cart to support a mat for getting a patient thereon, wherein said frame is divided into at least four parts, said at least four parts including an above knee portion constituting a seat portion for supporting a femoral region of said patient, a lumbar portion included in a backrest for supporting an upper part of a body of said patient, an armrest portion constituting an armrest, and a below knee portion capable of supporting a lower limb region of said patient; rotatably coupling said above knee portion, said lumbar portion, said armrest portion and said below knee portion with each other and changing their positional relationship enables transformation into a stretcher configuration in which a flat mat surface including said armrest portion and said below knee portion is formed and a wheelchair configuration in which said mat is bent and said armrest portion is raised up; said patient can be mounted to be moved in either posture of said stretcher configuration or said wheelchair configuration; and an angle adjustment mechanism, wherein said frame is mounted on said cart through said angle adjustment mechanism, said angle adjustment mechanism includes a support member which is provided between said frame and said cart to support said frame and is coupled with said cart so as to be capable of oscillating, and a tilt angle variable mechanism capable of fixing said support member to said cart at an arbitrary position, wherein said entire frame can tilt to said cart without changing each angle between said above knee portion and said lumbar portion, said lumbar portion and said armrest portion, said armrest portion and said below knee portion, and said below knee portion and said above knee portion, wherein said portions constitute said frame, and wherein said frame couples said cart so as to be capable of oscillating by coupling a middle part of said lumbar portion and a middle part of said below knee portion with said support member at two coupling positions, said above knee portion of said frame couples said below knee portion so as to be capable of rotating and sliding, a four-node rotation linkage of a parallelogram with a coupling position between said lumbar portion and said armrest portion, a coupling position between said armrest portion and said below knee portion, one of said coupling positions between said below knee portion and said support member of said cart, and the other of said coupling positions between said lumbar portion and said support member of said cart as four apexes being constituted in profile, said parallelogram being crushed and said four respective portions being arranged on the same plane by rotating said lumbar portion so as to be reclined rearward around said coupling position with said cart, said parallelogram being restored and said armrest portion being upheaved by rotating said lumbar portion so as to be raised forward.