4-post spinal system with vacuum lock

Details 4-post spinal system with vacuum lock 4-post spinal system with vacuum lock

1991-10-11

1992-11-17

Trettel, Michael F.

Beds

Invalid bed or surgical support

5 30, 5652, A61G 1300

Patent

active

051631938

ABSTRACT:
Four post units in a positional pattern on which the patient lies, in a surgery operation. The post units are supported on a table, and have recesses in their under surface forming vacuum chambers with the table top. Hoses lead from the vacuum chambers to a vacuum source, and valve means individually control the hoses. The post units are thus locked in place by vacuum, and each can be released individually to enable it to be adjustably moved on the table top to enable better positioning for engagement by the patient.

REFERENCES:
patent: 1984520 (1934-12-01), Curtis
patent: 3028131 (1962-04-01), Beck et al.
patent: 3910620 (1975-10-01), Sperry
patent: 4391438 (1983-07-01), Heffington, Jr.
patent: 4398707 (1983-08-01), Cloward
patent: 4840362 (1989-06-01), Bremer et al.
patent: 4908892 (1990-03-01), Michelson
patent: 4951911 (1990-08-01), Zatopeck et al.
patent: 4969222 (1990-11-01), Serola

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