IMPLANTABLE MEDICINE INJECTION PUMP PROVIDED WITH RELEASE SIDE PORT

摘要

PURPOSE: To provide a medication infusion pump which is implantable in a patient's body and which is of a kind as to send selected medications through a catheter to the patient in a programmable way over a long period of time. CONSTITUTION: A side port assembly body 28 is attached to a pump 10 quickly and simply and the assembly body 28 forms a flow path to release medications to a catheter 18. The side port assembly body 28 has a backflow stop valve 84 to prevent a backflow in the discharge flow path and an access port 20 accommodating access of an injection syringe into the discharge flow path. The discharge side access port 20 can be used to rinse and wash off the residual substances from the catheter 18 or can be used together with a refillable main port 22 which washes the pump 10 and/or which is to determine the actual pump stroke capacity.