Air fluidized bed for therapeutic use

• US 4,481,686 A
• Filed: 03/21/1983
• Issued: 11/13/1984
• Est. Priority Date: 03/25/1982
• Status: Expired due to Term

• Current Assignee: Hill-Rom Services Incorporated (Baxter International Inc.)
• Original Assignee: Francois R. Lacoste
• Inventors: Lacoste, Francois R.
• Primary Examiner(s): Grosz, Alexander
• Application Number:
  US06/477,497
• Time in Patent Office: 603 Days
• Field of Search: 5/453, 5/454, 5/450, 5/461, 5/469, 5/423, 5/438, 128/38
• US Class Current: 5/689
• CPC Class Codes: A61G 7/05746 fluidised by air flow
• CPC Class Codes: A61L 2/16 using chemical substances

Abstract

An air-fluidized bed for therapeutic use of the type comprising a tank filled with a particulate material through which passes an upward flow of gas.

According to the invention, particles of spherical shape, with a density higher than that of the particulate material, and which have a greater biochemical activity than the particulate material, are introduced in the tank.

Application: control of the bactericidal activity of an air-fluidized bed.

Claims

1. An air-fluidized bed for therapeutic use comprising a tank filled with a particulate material through which air flows upwardly, the material being covered by a porous sheet, characterized by the introduction, in said particulate material, of spherical particles having a size of the same order of magnitude as said particulate material and greater biochemical activity than said particulate material, said particles having a density higher than that of said particulate material.

2. An air-fluidized bed according to claim 1, characterized by the fact that said particles are made of at least one element selected from the class consisting of calcium, magnesium, aluminum, bismuth and silicon.

3. An air-fluidized bed for therapeutic use comprising a tank filled with a particulate material through which air flows upwardly, the material being covered by a porous sheet, characterized by the introduction, in said particulate material, of particles having greater biochemical activity than said particulate material, said particles having a density higher than that of said particulate material.

4. An air-fluidized bed according to claim 3, characterized by the fact that said particles are made of at least one element selected from the class consisting of calcium, magnesium, aluminum, bismuth and silicon.