| US 7,510,569 B2 | ||
| Use of intravascular hypothermia during angioplasty procedures | ||
| Michael W. Dae, Belmont, Calif. (US); Wade A. Keller, San Jose, Calif. (US); and Timothy R. Machold, Moss Beach, Calif. (US) | ||
| Assigned to ZOLL Circulation, Inc., Sunnyvale, Calif. (US) | ||
| Filed on Sep. 02, 2004, as Appl. No. 10/933,979. | ||
| Application 10/933979 is a continuation of application No. 09/735314, filed on Dec. 12, 2000, granted, now 6,811,551. | ||
| Claims priority of provisional application 60/170831, filed on Dec. 14, 1999. | ||
| Prior Publication US 2005/0027290 A1, Feb. 03, 2005 | ||
| Int. Cl. A61F 7/12 (2006.01) | ||
| U.S. Cl. 607—106 [607/105] | 12 Claims |
| 1. A method of reducing the potential for myocardial infarction or ischemic myocardial damage resulting from an angioplasty
procedure wherein a catheter that has an angioplasty balloon is positioned in a coronary blood vessel and its angioplasty
balloon is inflated to perform a therapeutic angioplasty procedure while incidentally causing a temporary decrease in blood
flow to the myocardium, said method comprising the steps of:
(A) inserting a heat exchange catheter having a heat exchange region into the inferior or superior vena cava of a patient;
(B) exchanging heat with the blood at the heat exchange region;
(C) maintaining the step of exchanging heat for a sufficient length of time to cool the myocardium to a cooled temperature
at which the potential for infarction or ischemic damage due to the temporary decrease in blood flow is lessened; and
(D) thereafter, inflating the angioplasty balloon to perform the therapeutic angioplasty.
|