Abstract: Syringe for dispensing foam having a syringe barrel, a nozzle and a bore to receive a syringe plunger having a front end and a back end. The syringe plunger includes at the front end thereof a waste container defined by a cylindrical side wall, a front end wall and a rear end wall, the walls being arranged such that an external cylindrical surface of the walls forms a seal with an internal surface of the syringe barrel. The waste container has an inlet aperture in the front end wall which is in communication with the syringe nozzle when the plunger is fully depressed into the syringe barrel. The waste container further has a hydrophobic vent in the rear end wall thereof which allows air to escape from the waste container while substantially preventing foam from escaping the waste container when the syringe is in use.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: Apparatus for dispensing foam for the treatment of, inter alia, varicose veins. The apparatus includes a source of foam and a dispensing device which has an inlet in communication with the source of foam, a usable foam outlet, and a waste bleed outlet. The waste bleed outlet communicates with the inlet and with the useable foam outlet, and has a higher resistance to flow of foam than that of the usable foam outlet. The useable foam outlet may be blocked off such that foam may flow through the high resistance waste bleed outlet, and the usable foam outlet may be opened such that foam may flow through the usable foam outlet.

Abstract: The invention concerns a device for back injecting an implant (30) into the skin (22) of a subject, said device (1) include a hollow main body (10), to which a hollow needle (28) is fixed into which the implant (30) is introduced, a secondary body (12; 114) coaxially arranged inside the main body (10) and surrounding the needle (28) and a piston rod (88) able to slide coaxially inside said hollow needle (28) and whose position relative to said needle (28) remains unchanged when the back injection device (1) is pressed against the subject's skin (22) to allow the needle (28) to penetrate said subject's skin and when the secondary body (12) retracts inside the main body (10), the piston rod (88) penetrating the interior of the hollow needle (28) to hold the implant (30) at the required depth in the subject's skin (22) during withdrawal of the hollow needle (28) from the subject's skin (22), during which the secondary body (12; 114) exits the main body (10), characterized in that it includes means for the elasti

Abstract: The invention concerns a device for back injecting an implant (30) into the skin (22) of a subject, said device (1) include a hollow main body (10), to which a hollow needle (28) is fixed into which the implant (30) is introduced, a secondary body (12; 114) coaxially arranged inside the main body (10) and surrounding the needle (28) and a piston rod (88) able to slide coaxially inside said hollow needle (28) and whose position relative to said needle (28) remains unchanged when the back injection device (1) is pressed against the subject's skin (22) to allow the needle (28) to penetrate said subject's skin and when the secondary body (12) retracts inside the main body (10), the piston rod (88) penetrating the interior of the hollow needle (28) to hold the implant (30) at the required depth in the subject's skin (22) during withdrawal of the hollow needle (28) from the subject's skin (22), during which the secondary body (12; 114) exits the main body (10), characterized in that it includes means for the elasti