US 2002/0058896 A1 · Continuous renal replacement therapy heat loss compensation

Abstract

An integrated CRRT method and apparatus incorporates steps and means for compensating for heat loss from blood in an extracorporeal circuit. A blood warmer is designed to engage and hold a disposable blood tube segment to transfer heat at a closely controlled temperature to blood flowing in the disposable blood tube segment. Another significant aspect of the present invention is a blood tube segment for engagement with the blood warmer is located in downstream of a dialyzer and upstream of a venous pressure monitor, an air bubble detector and a venous line clamp. The disposable blood tube segment may be selectively connected when heat loss compensation is required and left disconnected when heat loss compensation is not required.

Claims2

Dependent claims

A disposable tubing set adapted for engagement with a continuous renal replacement therapy monitor having a blood warmer, comprising:

a first venous line;
a second venous line;
a separable connector pair intermediate the first venous line and the second venous line;
a third venous line;
a sample access site intermediate the second venous line and the third venous line;
a fourth venous line;
and
a venous pressure pod intermediate the third and forth venous lines.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/051,431Filed 16 Jan 2002

Priority

12 Jan 1999

Published

16 May 2002

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

A61M 1/3621
Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood…
A61M 1/369
Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood…
A61M 1/16
Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for…:…
A61M 1/3622
Extra-corporeal blood circuits: with a cassette forming partially or totally the blood circuit

Family

Application60/115,583Us provisional application · filed 12 Jan 1999

Application09/481,454Continuation · filed 11 Jan 2000

Application10/051,431Continuation · filed 16 Jan 2002

US 6,349,170 B1Related patent

US 6,629,946 B2Related patent

US 2002/0058896 A1This patent

From the US filing history. Foreign family members aren’t listed.

Continuous renal replacement therapy heat loss compensation

Life of this patent

Continuous renal replacement therapy heat loss compensation

Life of this patent

Abstract

Claims2