Artificial kidney and method for making same

Patent 4231871 Issued on November 4, 1980. Estimated Expiration Date:

August 7, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3441136

3640393

3774762

Apparatus for extracorporeal treatment of blood
Patent #: 3946731
Issued on: 03/30/1976
Inventor: Lichtenstein

Fluid treatment apparatus
Patent #: 3963622
Issued on: 06/15/1976
Inventor: Baudet , et al.

Countercurrent capillary transfer device
Patent #: 4054527
Issued on: 10/18/1977
Inventor: Esmond

Device and method for effecting fluid interchange functions Patent #: 4127481
Issued on: 11/28/1978
Inventor: Malchesky , et al.

Inventors

Assignee

Cordis Dow Corp.

Application

No. 05/931229 filed on 08/07/1978

US Classes:

210/87, Responsive to fluid flow210/321.8, All cylindrical membranes are parallel210/500.23, Hollow fiber or cylinder210/90, Fluid pressure responsive210/96.2With membrane

Examiners

Primary: Spear, Frank A. Jr.

Attorney, Agent or Firm

Waldrop; Neal A.

International Classes

A61M 1/16 (20060101)
B01D 63/02 (20060101)

Abstract

An improved one-piece, integral hollow fiber artificial kidney and a semi-continuous method for making such kidneys and other apparatus of the hollow fiber separatory-type.