| 摘要 |
<p>Device for controlling the flow of a fluid, particularly a biological fluid, characterized in that the stem (E) of the valve system (E, D) comprises means for starting the loosening of the sealed tightening sleeve (D) of the valve stem (E), under the effect of the pressure of the fluid of which the flow is controlled by said valve stem. The invention also proposes alternatives of the valve stem, each of them being provided with the above mentioned loosening starting means. Some of those alternatives may be applied to devices for repeatedly injecting drugs. Application to prosthetic organs as well as to therapeutic treatment devices.</p> |
