PERFUSION REGULATION SYSTEM
First Claim
1. A reperfusion catheter system comprising:
- an introducer sheath having a wall defining a longitudinal lumen extending from a proximal portion to a distal end;
a middle catheter having a wall and having a longitudinal opening extending from a proximal portion to a distal end, the middle catheter disposed through the lumen of the introducer sheath;
a microcatheter having a wall and having a longitudinal lumen extending from a proximal portion to a distal end, the microcatheter disposed through the lumen in the middle catheter, the microcatheter having an inflatable balloon on the distal end;
a connecting tube having a first end disposed in fluid communication with the inside of the introducer sheath and a second end disposed in fluid communication with the microcatheter; and
an antegrade blood flow path defined between an inner surface of the introducer sheath and an outer surface of the middle catheter, through the connecting tube, through the proximal portion of the microcatheter, through the lumen of the microcatheter, and exiting the distal end of the microcatheter.
3 Assignments
0 Petitions
Accused Products
Abstract
A reperfusion system and method of perfusing a blood vessel using the reperfusion system are provided. The system includes an introducer sheath, a middle catheter extending through the introducer sheath, and a balloon microcatheter extending through the middle catheter. A connecting tube extends between a lumen of the introducer sheath and a valve at a proximal end of the microcatheter. A flow path is defined along a lumen of the introducer sheath, through the connecting tube, into the microcatheter, and out of a distal opening of the microcatheter. The balloon is disposed adjacent the exit point of the flow path to reduce reflux. Embolic material can be introduced into the microcatheter at the valve to exit at the same location as the blood flow.
27 Citations
20 Claims
-
1. A reperfusion catheter system comprising:
-
an introducer sheath having a wall defining a longitudinal lumen extending from a proximal portion to a distal end; a middle catheter having a wall and having a longitudinal opening extending from a proximal portion to a distal end, the middle catheter disposed through the lumen of the introducer sheath; a microcatheter having a wall and having a longitudinal lumen extending from a proximal portion to a distal end, the microcatheter disposed through the lumen in the middle catheter, the microcatheter having an inflatable balloon on the distal end; a connecting tube having a first end disposed in fluid communication with the inside of the introducer sheath and a second end disposed in fluid communication with the microcatheter; and an antegrade blood flow path defined between an inner surface of the introducer sheath and an outer surface of the middle catheter, through the connecting tube, through the proximal portion of the microcatheter, through the lumen of the microcatheter, and exiting the distal end of the microcatheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A method for controlling blood flow, the method comprising:
-
delivering, to a body lumen, an introducer sheath having a wall defining a longitudinal lumen extending from a proximal portion to a distal end; advancing, through the lumen of the introducer sheath and out of the distal end thereof, a middle catheter having an outer wall and having a longitudinal opening extending from a proximal portion to a distal end; advancing, through the lumen of the middle catheter and out of the distal end thereof, a microcatheter having a wall and having a longitudinal lumen extending from a proximal portion to a distal end, the microcatheter having an inflatable balloon on the distal end; receiving blood into the distal end of the introducer sheath; advancing the blood into a connecting tube having a first end in fluid communication with the inside of the introducer sheath and a second end in fluid communication with the microcatheter lumen; and wherein the blood flows through a blood flow path defined between an inner surface of the introducer sheath and an outer surface of the middle catheter, through the connecting tube, through the proximal portion of the microcatheter, through the lumen of the microcatheter, and exiting the microcatheter distal end. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification