Water purification pack
AssigneePrismedical Corporation
InventorMichael A. Taylor
Life of this patent
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Abstract
An apparatus and methods are disclosed for purifying fluid, such as potable water, to quality levels suitable for medical application, particularly to applications involving injection of the fluid into a human body. The apparatus comprises a portable purification pack constructed for a single use. The pack houses depth filtration, activated carbon, mixed bed ion exchange resins and terminal filtration stages in series. The terminal filter comprises a fine (microfiltration or ultrafiltration), permeable membrane, treated with an endotoxin-binding chemistry. In contrast with semi-permeable osmotic membranes, the permeable membrane produces high flow rates at relatively low pressures, while still safely purifying fluid to injection quality.
Claims20
A method of producing injectable quality of water, comprising:
- providing a portable purification pack comprising a housing surrounding a plurality of purification elements in series;
- providing non-sterile water to an inlet of the housing under a feed pressure of less than about 20 psi;
- passing the water through the plurality of purification elements;
- and
- outputting purified water from an outlet of the housing, wherein the purified water has an organic content, conductivity, pH level and particulate contamination level suitable for injection into the human body.
A method for producing fluid for medical application, comprising:
- providing a portable housing;
- passing non-sterile fluid through the housing;
- retaining particulate contamination, organic matter, dissociated ions, and endotoxins from the feed fluid within purification elements in the housing;
- and
- outputting fluid suitable for medical applications from the housing.
method for producing fluid for medical application, comprising:
- providing a portable housing;
- passing non-sterile fluid through the housing;
- retaining particulate contamination, organic matter, dissociated ions, and endotoxins from the feed fluid within purification elements in the housing, the purification elements arranged in series;
- and
- outputting fluid suitable for medical applications from the housing.
Dependencies are inferred from the claim text.