Compact heat exchanger for veno-venous perfusion-induced systemic hyperthermia systems
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61F-007/00
A61M-001/26
A61M-001/16
A61M-001/10
출원번호
US-0584696
(2012-08-13)
등록번호
US-9468557
(2016-10-18)
발명자
/ 주소
Wang, Dongfang
Zwischenberger, Joseph B.
출원인 / 주소
THE UNIVERSITY OF KENTUCKY RESEARCH FOUNDATION
대리인 / 주소
King & Schickli, PLLC
인용정보
피인용 횟수 :
0인용 특허 :
103
초록▼
A compact heat exchanger for veno-venous perfusion-induced hyperthermia includes an integral pneumatic pump and a hollow tubule heat exchange array. A veno-venous perfusion-induced hyperthermia system incorporating the compact heat exchanger is described. The heat exchanger provides a compact, effic
A compact heat exchanger for veno-venous perfusion-induced hyperthermia includes an integral pneumatic pump and a hollow tubule heat exchange array. A veno-venous perfusion-induced hyperthermia system incorporating the compact heat exchanger is described. The heat exchanger provides a compact, efficient design allowing a lesser heat exchanging surface area and lesser required pumping power compared to conventional systems. In turn, the system provides a shorter blood circuit compared to conventional systems, allowing maintaining a lower blood temperature than such conventional systems while supplying sufficiently heated blood to patient visceral organs to provide a therapeutic effect, such as in supplementing chemotherapy drugs.
대표청구항▼
1. A compact heat exchanger for veno-venous perfusion-induced hyperthermia, comprising: a housing, a blood inlet ending at a distal-most surface of the compact heat exchanger and defining a longitudinal axis, a blood outlet, a heated fluid inlet, and a heated fluid outlet;a hollow tubule heat exchan
1. A compact heat exchanger for veno-venous perfusion-induced hyperthermia, comprising: a housing, a blood inlet ending at a distal-most surface of the compact heat exchanger and defining a longitudinal axis, a blood outlet, a heated fluid inlet, and a heated fluid outlet;a hollow tubule heat exchange array disposed within an interior of the housing for heat exchange to and from blood passing through the compact heat exchanger;an inlet blood flow redirector disposed at a distal-most end of the blood inlet and configured to redirect a flow of the blood radially to the longitudinal axis across the compact heat exchanger distal-most surface and therefrom to the hollow tubule heat exchange array, the blood perfusing therefrom to the blood outlet; anda pneumatic pump disposed substantially within the blood inlet and within a perimeter defined by the housing, further wherein the pneumatic pump is disposed in an interior of the hollow tubule heat exchange array. 2. The heat exchanger of claim 1, wherein the pneumatic pump provides a blood flow rate of from about 0.5 to about 2 L/minute. 3. The heat exchanger of claim 2, wherein a heat exchanging surface area of the hollow tubule heat exchange array is optimal for heating the blood passing therethrough at a flow rate of from about 0.5 to about 2 L/minute to a blood temperature of up to 44 C for delivery to a patient body. 4. The heat exchanger of claim 1, wherein the hollow tubule heat exchange array is fabricated of a suitable heat exchanging metal. 5. The heat exchanger of claim 4, wherein the suitable heat exchanging metal is stainless steel. 6. A veno-venous perfusion-induced hyperthermia system, comprising: a compact heat exchanger comprising: a housing, a blood inlet ending at a distal-most surface of the compact heat exchanger and defining a longitudinal axis, a blood outlet, a heated fluid inlet, and a heated fluid outlet;a hollow tubule heat exchange array disposed within an interior of the housing for heat exchange to and from blood passing through the compact heat exchanger;an inlet blood flow redirector disposed at a distal-most end of the blood inlet and configured to redirect a flow of the blood radially to the longitudinal axis across the compact heat exchanger distal-most surface and therefrom to the hollow tubule heat exchange array, the blood perfusing therefrom to the blood outlet; anda pneumatic pump disposed substantially within the blood inlet and within a perimeter defined by the housing, further wherein the pneumatic pump is disposed in an interior of the hollow tubule heat exchange array;a pneumatic console for cyclically supplying and withdrawing gas to and from the compact heat exchanger to operate the pneumatic pump and thereby pass the blood over the compact heat exchanger hollow tubule heat exchange array;another pump for passing heated fluid through the compact heat exchanger hollow tubule heat exchange array;and a dual lumen cannula for withdrawing the blood from a patient body, passing the blood through the compact heat exchanger, and returning the blood to the patient body. 7. The veno-venous perfusion-induced hyperthermia system of claim 6, wherein the pneumatic console and pneumatic pump provide a blood flow rate of from about 0.5 to about 2 L/minute. 8. The veno-venous perfusion-induced hyperthermia system of claim 7, wherein a heat exchanging surface area of the hollow tubule heat exchange array is optimal for heating the blood passing therethrough at a flow rate of from about 0.5 to about 2 L/minute to a blood temperature of up to 44 C for delivery to a patient body. 9. The veno-venous perfusion-induced hyperthermia system of claim 8, wherein the hollow tubule heat exchange array is fabricated of a suitable heat exchanging metal. 10. The veno-venous perfusion-induced hyperthermia system of claim 9, wherein the suitable heat exchanging metal is stainless steel. 11. A compact heat exchanger for veno-venous perfusion-induced hyperthermia, comprising: a housing, a blood inlet ending at a distal-most surface of the compact heat exchanger and defining a longitudinal axis, a blood outlet, a heated fluid inlet, and a heated fluid outlet;a hollow tubule heat exchange array disposed within an interior of the housing for heat exchange to and from blood passing through the compact heat exchanger;an inlet blood flow redirector disposed at a distal-most end of the blood inlet, the inlet blood flow redirector including a conical tip extending into an interior lumen of the distal-most end of the blood inlet for evenly dispersing the blood radially to the longitudinal axis across the compact heat exchanger distal-most surface and therefrom to the hollow tubule heat exchange array, the blood perfusing therefrom to the blood outlet; anda pneumatic pump disposed substantially within the blood inlet and within a perimeter defined by the housing, further wherein the pneumatic pump is disposed in an interior of the hollow tubule heat exchange array.
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