Sociéte de Commercialisation Des Produits de la Recherche Appliquée SOCPRA Sciences et Génie S.E.C.
发明人:
Gamal BAROUD
申请号：
US13790378
公开号：
US20130190680A1
申请日:
2013.03.08
申请国别(地区):
US
年份:
2013
代理人:
摘要：
A bone cement delivery system for vertebroplasty with a cannula having a rigid metal tubular inner wall surrounding a central conduit with a distal outlet port, a rigid metal tubular outer wall extending around the inner wall to define a peripheral conduit with a distal inlet port in the form of fenestrations defined in the tubular outer wall, unobstructed and directly exposed to an environment of the delivery system, a proximal inlet port in communication with the central conduit and a proximal outlet port in communication with the peripheral conduit. A vacuum pump communicating with the proximal outlet port of the peripheral conduit applies a pressure in the range of 10 to 100 KPa to create a pressure gradient between the central conduit and the peripheral conduit to produce a difference in flow rate between the conduits guiding the displacement of bone fluid and the flow of cement.
