초록 ▼

The invention concerns a device for the two-way transfer of a liquid (38) between a bottle (14) provided with a cap (44) capable of being perforated at a cartridge (12) comprising a cylindrical reservoir (26) wherein slides a piston (34) capable of being perforated. It comprises: a body (16) includi

The invention concerns a device for the two-way transfer of a liquid (38) between a bottle (14) provided with a cap (44) capable of being perforated at a cartridge (12) comprising a cylindrical reservoir (26) wherein slides a piston (34) capable of being perforated. It comprises: a body (16) including means to be fixed on the bottle (14); a member (24) linking the piston (34) capable of being perforated to the body (16); a shuttle (20) relative to the body (16) and said linking member (24), the shuttle bearing a hollow needle (22) whereof one first end (112) is adapted to pierce the piston (34) and whereof the second end (114) is adapted to pierce the cap (44). The shuttle (20) is mobile between a piston wherein the needle ends (112, 114) are spaced apart from the piston (34) capable of being perforated and the cap (44) capable of being perforated and an end-of-stroke transferring position wherein the needle ends (112, 114) are received in the cartridge (12) and the bottle (14).

대표청구항 ▼

1. A device for two-way transfer of a liquid ( 38) between a bottle (14), provided with a perforable stopper (44), and a cartridge (12), comprising a cylindrical reservoir (26) in which a perforable piston (34) slides, characterized in that it includes: a body ( 16) having means for fixing to the

1. A device for two-way transfer of a liquid ( 38) between a bottle (14), provided with a perforable stopper (44), and a cartridge (12), comprising a cylindrical reservoir (26) in which a perforable piston (34) slides, characterized in that it includes: a body ( 16) having means for fixing to the bottle (14), a member ( 24) for connecting the perforable piston (34) to the body (16), a shuttle ( 20) which is displaceable relative to the body (16) and to said connecting member (24), the shuttle (20) bearing a hollow needle (22) of which a first end (112) is adapted to perforate the piston (34) and of which the second end (114) is adapted to perforate the stopper (44), and in that the shuttle (20) is displaceable between an initial position, in which the needle ends (112,14) are spaced apart from the perforable piston (34) and the perforable stopper (44), and a final transfer position, in which the needle ends (112,114) are received in the cartridge (12) and the bottle (14).2. The device as claimed in claim 1, characterized in that said member (24) for connecting the piston to the body comprises means (96) for fixing to the body (16) and is movable relative to the body (16) from an initial position, in which the fixing means (96) are not in engagement with the body (16), and a final position, in which the fixing means (96,98) are in engagement with the body, thus ensuring that the piston is connected to the body.3. The device as claimed in claim 1, characterized in that said member (24) for connecting the piston to the body comprises a threaded protuberance (92) for fixing it in a tapped recess (36) in the piston (34).4. The device as claimed in claim 1, characterized in that said shuttle (20) is mounted so as to slide in a conduit (91) of said member (24) for connecting the piston to the body.5. The device as claimed in claim 4, characterized in that said conduit (91) has on the inside an abutment (100) limiting the displacement travel of the shuttle (20).6. The device as claimed in claim 1, characterized in that it comprises a protective cap (18) initially mounted on the body (16), which protective cap (18) has means (80) for fixing it to the reservoir (26) of the cartridge.7. The device as claimed in claim 1, characterized in that the body (16) has a continuation surrounding said shuttle (20) and extending beyond the first end (112) of the needle.8. The device as claimed in claim 1, characterized in that it comprises at least one abutment (232) limiting the axial displacement of the reservoir (26) relative to the connecting member (24), preventing removal of the piston (34) from the reservoir (26).9. The device as claimed in claim 8, characterized in that it comprises a cartridge support (202) on which the reservoir (26) of the cartridge (12) bears axially, and in that one of the cartridge support (202) and connecting member (24) has at least one projection, forming said abutment (232), received in a longitudinal slit (210,212) of the other of the cartridge support (202) and connecting member (24), in order to limit their relative axial displacement between the reservoir (26) and the connecting member (24).10. An injection kit including a device ( 10) for two-way transfer according toclaim 1, and a cartridge (12) and a bottle (14), in which the cartridge (12) is initially connected to the connecting member (24) and the bottle (14) is initially connected to the body (16).