Production of solutions
AssigneeIngerthorpe Holdings Limited
InventorsJames G. Gow, Alan G. England
Life of this patent
Estimating the term…
Abstract
This invention relates to the production of aqueous solutions of desired concentration for medical purposes which comprises passing water through a reverse osmosis column capable of retaining 100% of pyrogenic materials; and subsequently, in either order, passing the water through a sterilizer capable of eliminating 100% of bacterial material, and admixing, in suitable ratio, the water with a desired material or with a solution of such material of higher concentration than desired to produce said desired concentration solution.
Claims10
An apparatus for the production of an aqueous solution of desired concentration for medical purposes, which comprises a first pump connectible to a source of water, a reverse osmosis column connected to said first pump, said reverse osmosis column being capable of retaining 100% of bacterial material;
- a heat steriliser capable of eliminating 100% of bacterial material;
- a proportioning pump for admixing the pyrogen-free water with a desired material or with a solution of such material of higher concentration than desired to provide said desired concentration;
- first fluid flow means connecting an outlet of said reverse osmosis column to the proportioning pump;
- second fluid flow means connecting an outlet of said proportioning pump to an inlet of said steriliser;
- a filter between the outlet from the reverse osmosis column and the inlet to the steriliser and including means for measuring the pressure differential between the two sides of the filter;
- and a device for switching off the apparatus in the event that during operation the pressure differential between the two sides of the filter varies from its normal range.
An apparatus for the production of an aqueous solution of desired concentration for medical purposes, which comprises a first pump connectible to a source of water, a reverse osmosis column connected to said first pump, said reverse osmosis column being capable of retaining 100% of pyrogenic material;
- a heat steriliser capable of eliminating 100% of bacterial material;
- a proportioning pump for admixing the pyrogen-free water with a desired material or with a solution of such material of higher concentration than desired to provide said desired concentration;
- first fluid flow means connecting an outlet of said reverse osmosis column to one of the heat steriliser and the proportioning pump;
- second fluid flow means connecting an outlet of said one of the heat steriliser and the proportioning pump to an inlet of the other of the heat steriliser and the proportioning pump;
- a filter between the outlet from the reverse osmosis column and the inlet to the steriliser and including means for measuring the pressure differential between the two sides of the filter;
- and a device for switching off the apparatus in the event that during operation the pressure differential between the two sides of the filter varies from its normal range.
Dependencies are inferred from the claim text.