U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method of treating blood during operative procedures

Patent 4299705 Issued on November 10, 1981. Estimated Expiration Date: Icon_subject September 7, 1999. 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.

Patent References

3212498

3731680

3844940

3907504

Artificial kidney and a method of ultrafiltering a liquid
Patent #: 3939069
Issued on: 02/17/1976
Inventor: Granger ,   et al.

Bubble trap
Patent #: 4102655
Issued on: 07/25/1978
Inventor: Jeffery ,   et al.

Fluid handling system Patent #: 4178240
Issued on: 12/11/1979
Inventor: Pinkerton

Inventor

Application

No. 06/073189 filed on 09/07/1979

US Classes:

210/647, Maintaining critical concentration(s)210/321.65, Permeated liquid quantity measurement or control210/929, HEMOULTRAFILTRATE VOLUME MEASUREMENT OR CONTROL PROCESSES422/47, Bubble or foam producing604/6.14Oxygenating means

Examiners

Primary: Spear, Frank A. Jr.

Attorney, Agent or Firm

International Classes

A61M 1/36 (20060101)
A61M 1/32 (20060101)
A61M 1/34 (20060101)

Abstract

This invention is a method for separating blood from other fluids added to the blood in connection with operative procedures. It is particularly exemplified by bypassing a portion of the blood during surgery through an artificial kidney apparatus or the like in conjunction with the oxygenation, simultaneously, of all blood, including that bypassed through the artificial kidney, wherein the excess fluids other than blood are removed for all practical purposes by completion of the operative procedure.

Other References

  • Galletti et al., "Heart-Lung Bypass", 5-74, 391 pp., 59, 198-207 & 253-255 relied on
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