Apparatus, e.g. a syringe, for dispensing foam includes means for ensuring that only foam of adequate quality is dispensed. In use, the syringe may be filled from a pressurised canister which generates foam e.g. for therapeutic use in treating varicose veins. An initial quantity of foam dispensed from the canister may be of inadequate quality in which case it should not be used: the syringe includes means to ensure that this initial quantity of foam is diverted to a waste port or to an internal waste chamber e.g. located in the syringe plunger. Foam dispensed after the initial quantity of poor quality foam is stored in the main barrel of the syringe ready for administration to a patient in need of treatment.
申请公布号
WO2005053776(A1)
申请公布日期
2005.06.16
申请号
WO2004GB05086
申请日期
2004.12.03
申请人
BTG INTERNATIONAL LIMITED;KAY, STUART, BRIAN, WILLIAM;HURLSTONE, CHRISTOPHER, JOHN;DIXON, JULIAN, RICHARD;POCOCK, ANDREW, GORDON
发明人
KAY, STUART, BRIAN, WILLIAM;HURLSTONE, CHRISTOPHER, JOHN;DIXON, JULIAN, RICHARD;POCOCK, ANDREW, GORDON