Electrically driven, separate type, surgical operation table
AssigneeMizuho Ika Kogyo Kabushiki Kaisha
InventorKensuke Seshima
Life of this patent
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Abstract
In a surgical operation table having an upper structure for supporting the body of a patient, separably supported by a lower structure on a part vertically movable relative to the remaining parts thereof and rotatable around the longitudinal and transverse axes of the table, a guiding device comprising a guiding pin and a guiding bush combined respectively with mating halves of an electric connector and a locking device comprising an electrically driven locking screw and a nut are provided on the engaging surfaces of the upper structure and the above mentioned part of the lower structure, which are driven through a two-line electric circuit of a reduced voltage.
Claims9
In an electrically driven, separate type, surgical operating table comprising an upper structure for supporting the body of a patient, a lower structure including support means for supporting the upper structure in a detachable manner, first drive means for moving said support means vertically relative to other parts of the lower structure, second drive means for rotating said support means about longitudinal and transverse axes of the operating table, guidingmeans for bringing the upper structure and said support means of the lower structure into predetermined relative positions, said guiding means comprising at least one combination of a first guide member carried by said support means and a second guide member carried by said upper structure, one of said guide members being a guide pin and the other guide member being a guide bush, and the operating table also comprising locking means for locking the upper structure onto said support means of the lower structure,
- the improvement wherein
- (a) said first and second guide members are respectively combined with first and second mating parts of an electric connector which establishes electric connection between said mating parts when said first and second guide members are fully engaged, the first part of the connector being connected to an electric power source,
- (b) said locking means comprises at least one combination of a first threaded member provided in said support means and a second threaded member provided in said upper structure, one of said threaded members being a locking screw and the other threaded member being a nut which is threadedly engageable with said locking screw,
- (c) said upper structure supports therein third drive means for driving said second threaded member relative to said first threaded member for locking and unlocking operation between said support means of the lower structure and said upper structure
- (d) said upper structure supports therein fourth drive means for adjusting the upper structure itself independently of the lower structure, said third and fourth drive means being electrically operable and being connected to the second part of the electric connector whereby, when said first and second guide members are fully engaged, said third and fourth drive means are connected to the power source through said connector, and
- (e) circuit means are provided to cause said third drive means to become operative for the locking and unlocking operation at a predetermined vertical position of said support means of the lower structure, while causing said first drive means to become inoperative.
Dependencies are inferred from the claim text.