summary improvements in sanitary chair with orbital seat-lifting mechanism for people with reduced mobility. it is a sanitary chair (10) of the type used for personal hygiene or displacement of people with reduced mobility such as the elderly, bedridden patients, obese people, pregnant women, among others； said sanitary chair (10) is comprised of a structure (20) formed by oblique sectors (21a) with an angle (a) in such a way as to make up the upper base sector (sb) for the assembly of the smaller support and seat (40) ( l1) which lower base sector (sb1) whose greatest width (l2) makes up support feet (21b) spaced apart with a gap that makes it possible to mount the chair (10) in any toilet bowl dimension (vs)； said orbital mechanism (30) provides a transverse axis (31) where a pair of bearings (33) is installed for the assembly of the main seat support (40), as well as receives a pair of bevel gears (50) each geared in other bevel gears (51) installed along the free ends of each worm shaft (32)； said transverse axis (31) provides in one of the extreme portions a crank (34) that when rotated moves the axis (31) and respective bevel gears (50), which, in turn, rotate the gears (51) which, consequently, the worm shafts (32) move which, due to the fact that they are connected to the telescopic profiles (22), allow the elevation (e1) of the main seat (40) and, consequently, adjustment for the user with reduced mobility.resumo aperfeiçoamentos em cadeira sanitária com mecanismo orbital de elevação do assento para pessoas com mobilidade reduzida. trata-se de uma cadeira sanitária (10) do tipo utilizada para higiene pessoal ou deslocamento de pessoas com mobilidade reduzida como idosos, pacientes acamados, obesos, gestantes, entre outras； dita cadeira sanitária (10) é compreendida por estrutura (20) formada por setores oblíquos (21a) com angulação (a) de tal forma a compor setor base superior (sb) para a montagem do suporte e assento (40) de menor largura (l1) que setor ba
