Device for applying a flowable medium, notably a tissue adhesive

A device for applying a flowable medium, in particular a tissue adhesive, the device comprising:

• at least one reservoir (16) for the medium, the reservoir (16) comprising an outlet (22) from which the medium exits when pressure is applied to the medium and/or the reservoir (16),
• pressure-generating element (20) for applying pressure to the medium and/or the reservoir (16),
• biasing means (34) for biasing the pressure-generating element (20), said biasing means (34) comprising a movable biasing element (36) which is pneumatically and/or hydraulically biased towards said pressure-generating element (20) and coupled with the latter,
• controllable locking means (58) for locking the biasing element (36), said locking means (58) comprising a movable fixing element (56) which, in at least in one fixing position, locks said biasing element (36) against movements caused by the biasing process and is movable out of the at least one fixing position to release said biasing element (36), and
• release means (81) for selectively releasing the locking means (58), said release means (81) comprising a release element (82) for temporarily moving the fixing element (56) out of its at least one fixing position,
• wherein the biasing means (34) comprises a first and a second toothed rack (62,64) coupled with the biasing element (36), and the fixing element (56) comprises a first fixing projection (66) for meshing with the first toothed rack (62) and a second fixing projection (68) for meshing with the second toothed rack (63), and
• wherein the two toothed racks (62,64) avert each other and the two fixing projections (66,68) face each other, and the fixing element (56) is reciprocal by the release element (82) between two fixing positions in which one of the fixing projections (66,68) meshes with one of the toothed racks (62,64).