Internal preservation fluid dispenser for endoscopic vessel harvester

摘要

An endoscopic vessel harvester includes a vessel keeper for capturing a target vessel within a tunnel that has been dissected along the target vessel. A cutter member cuts and cauterizes side branches while the target vessel is slidably captured in the vessel keeper. A spray nozzle carried by the vessel keeper delivers a preservative fluid via a manual control valve and a conduit. The preservative fluid is sprayed on the target vessel proximate a respective side branch immediately after being cauterized. Thus, a harvested vessel is bathed in preservative fluid prior to being actually removed from the body, enhancing endothelial preservation from cascading events.

主权项

1. An endoscopic vessel harvester comprising:
a longitudinal insertion member having a proximal end with a handle and a distal end adapted for insertion into a tunnel dissected along a target vessel within a body of a patient; a vessel keeper extendably mounted at the distal end of the insertion member comprising a capture frame with a movable side having an opened position to admit the target vessel and having a closed position to slidably capture the target vessel; a cutter member extendably mounted at the distal end of the insertion member having a cauterizing element adapted to contact side branches of the target vessel and to cut and cauterize the side branches while the target vessel is slidably captured in the vessel keeper; a spray nozzle carried by the vessel keeper; a preservative distributor including a manual control valve and a conduit between the valve and the spray nozzle adapted to deliver a preservative fluid to the target vessel proximate a respective side branch immediately after being cauterized; and a support rod connected to the capture frame; wherein the conduit is carried within the support rod.