Atraumatic temporary arterial branch perfusion device
AssigneeThe Brigham and Women's Hospital, Inc.
InventorMagruder C. Donaldson
Life of this patent
Estimating the term…
Abstract
A perfusion catheter system that allows selective temporary perfusion of small vascular or other anatomic structures arising from a host structure atraumatically. The perfusion device has an elongate body having an afferent end portion for receiving perfusion fluid, an efferent end portion for delivering the perfusion fluid to the branch vessel, and a lumen extending between the afferent and efferent end portions for the passage of fluid. The perfusion fluid is delivered through a hub assembly which provides a secure temporary water-tight seal between the perfusion catheter and the host structure without damage to the tissue, thereby enabling a safe and effective interface with small branch vessels during host artery clamping.
Claims18
A perfusion catheter system for selectively and temporarily delivering perfusion fluid to a branch vessel originating from a host structure, comprising:
- an elongate body having an efferent end portion, an afferent end portion, a lumen extending therebetween for passage of fluid therethrough;
- an inflow port at the afferent end portion in communication with the lumen and being configured to be coupled to a perfusion source to receive perfusion fluid;
- and
- a hub assembly defining an outflow port at the efferent end portion in communication with the lumen to deliver the perfusion fluid to the branch vessel, the hub assembly being configured for placement over the origin of the branch vessel;
- wherein the hub assembly provides a water-tight, atraumatic seal with an inner surface of the host structure adjacent the origin of the branch vessel.
A perfusion catheter system for selectively and temporarily delivering perfusion fluid to a branch vessel originating from a host structure, comprising:
- an elongate body having an efferent end portion, an afferent end portion, and a lumen extending therebetween for passage of fluid therethrough, the afferent end portion being configured to be coupled to a perfusion source to receive perfusion fluid;
- a hub extending from the efferent end portion and being in communication with the lumen to deliver the perfusion fluid to the branch vessel, the hub being surrounded by a conformable contact ring adapted for placement over the opening of the vessel;
- and
- a coupling device for maintaining the conformable contact ring in position;
- wherein the conformable contact ring and coupling device form a water-tight, atraumatic seal between the hub and an inner surface of the host structure of the branch vessel.
A perfusion device for selectively and temporarily delivering perfusion fluid to a branch vessel originating from a host structure, comprising:
- an elongate body having an efferent end portion, an afferent end portion, and a lumen extending therebetween for passage of fluid therethrough, the afferent end portion being configured to be coupled to a perfusion source to receive perfusion fluid;
- a hub extending from the efferent end portion and being in communication with the lumen to deliver the perfusion fluid to the branch vessel, the hub being surrounded by a conformable concave contact ring adapted for placement over the origin of the branch vessel;
- and
- a suction channel extending through the elongate body and having a connector port for coupling with a vacuum source, the suction channel being in communication with the conformable concave contact ring for applying a vacuum pressure such that the conformable concave contact ring forms a water tight, atraumatic seal between the hub and the host structure of the branch vessel.
Dependencies are inferred from the claim text.