BALFOUR, CAROL SUZANNE,FAULKNER, DAVID IAN,MOSS, STAFFORD GUY,WYSS, THOMAS,FAITHFULL, REX,AJAO, THOMAS
申请号：
CA3029769
公开号：
CA3029769A1
申请日:
2017.07.26
申请国别(地区):
CA
年份:
2018
代理人:
摘要：
The present invention relates to methods and devices for production of injectable foams, such as those used in the treatment of varicose veins and other venous disorders. The method requires the delivery or supply of foamable liquid sclerosing agent and a suitable gas or a gas mixture to a foam producing structure in which the liquid and gas are combined to produce foam, wherein the liquid is delivered independently of the delivery of gas. Devices for producing injectable foam comprise a foam producing structure in which liquid and gas are combined to produce foam, the structure comprising an inlet for liquid and gas and an outlet for foam； a liquid pathway in communication with the inlet； and a gas pathway in communication with the inlet, characterised in that the liquid pathway comprises a means for delivering liquid through the liquid pathway independently of gas delivery through the gas pathway. In preferred embodiments, the delivery of liquid and/or gas is controlled with volumetric pumps.
