| 摘要 |
The invention provides an injection device comprising an open cavity (2), an injection needle (9) projecting from the bottom of this cavity (2), a first leakproof compartment (6) delimited by a first section of a mobile barrier (11), first devices (13) for displacing the said first section of a mobile barrier (11) to vary the volume of the compartment, at least one passage (7) communicating between the said first leakproof compartment (6) and the said cavity (2), a second leakproof compartment (5) for a product to be injected, delimited by a second section of a mobile barrier (10), and second devices (12) for displacing the said second section of a mobile barrier (10) to vary the volume of the compartment. The said first and second leakproof compartments (5, 6) extend longitudinally within a tubular body (1). The cavity (2) is located at one end of this tubular body, while the said first and second devices (12, 13) for displacing the said first and second sections of a mobile barrier (10, 11) are accessible at the other end of the said tubular body (1). |
