PIEHL, Mark,DAVENPORT, Elizabeth, Moody,ELLER, Alex,HAYES, Ashley,JOHNSON, Laura,WITMAN, Denise, J.
申请号：
USUS2014/030097
公开号：
WO2014/145354A1
申请日:
2014.03.16
申请国别(地区):
WO
年份:
2014
代理人:
摘要：
A system allows for rapid intraosseous delivery of fluids from a fluid reservoir via an intraosseous port having a tip disposed within the bone marrow of a patient. The system includes a housing with a chamber and a plunger. An actuator is moveable between first and second positions to move the plunger between the distal and proximal positions. A valve housing includes a first one-way valve fluidly coupled to the fluid reservoir, and a second one-way valve fluidly coupled to the intraosseous port. The valves of the valve housing are oriented such that movement of the actuator from the first to the second position moves the plunger from the distal to the proximal position, drawing fluid from the fluid reservoir through the first valve and into the chamber. Movement of the actuator from the second to the first position moves the plunger from the proximal to the distal position, driving fluid from the chamber through the port and second valve and through the intraosseous port. A grip manipulated by a user effects movement of the actuator, which provides sufficient mechanical advantage for the user to easily overcome resistance to the flow of fluid into the bone marrow. The plunger may be biased in the proximal position such that it is automatically retracted to that position, causing re-filling of the chamber, when the user releases forces imparted to the grip. The tubing and valve mechanism are of sufficient caliber to allow rapid and low-resistance flow of fluid from the reservoir into the chamber. The combination of these components allows rapid infusion of large volumes into the bone marrow without user fatigue, and requiring only one hand to operate the mechanism.Linvention concerne un système qui permet ladministration intra-osseuse rapide de fluides provenant dun réservoir de fluide, par lintermédiaire dun orifice intra-osseux, ayant une pointe disposée à lintérieur de la moelle épinière dun patient. Le système comprend un boîtier ayant une chambre et un piston.
