초록 ▼

An implantable programmable medication infusion system comprises an implantable portion (2) having a medication reservoir (10) at below body pressure and isolated at its input from the body in which it is implanted by an antechamber (8) the pressure integrity of which is checked before filling the m

An implantable programmable medication infusion system comprises an implantable portion (2) having a medication reservoir (10) at below body pressure and isolated at its input from the body in which it is implanted by an antechamber (8) the pressure integrity of which is checked before filling the medication reservoir (10). Safety features include a leak detector (35), inlet and outlet valves (14 and 212) used with flow impeding filters (12 and 218), and a maximum allowable pressure in a pulsatile bellows pump (202) all of which prevent undesired infusion of medication. Medication flow from the pulsatile bellows pump (202) is in response to programming commands from a drug programming system (1) and processed in an electronics section (30) which uses the commands to program memory units (320 and 322) and to request pulses of medication. Hardwired limit controls (324 and 326) prevent excessive dosage requests from reaching the pulsatile bellows pump (202). For patient convenience and safety, the memory units (320 and 322) are programmed with running integral limits. A record of medication dispensing can be communicated to a physician by means of a telemetry transmitter (336) which sends signals by telemetry to the communications head (300) which information is displayed on the drug programming unit (3).

대표청구항 ▼

A programmable infusion system for providing medication to a living body of a patient comprising: an infusion apparatus for implantation in said living body, said apparatus including a medication reservoir for storing selected medication, means for infusing said selected medication stored in said me

A programmable infusion system for providing medication to a living body of a patient comprising: an infusion apparatus for implantation in said living body, said apparatus including a medication reservoir for storing selected medication, means for infusing said selected medication stored in said medication reservoir into said living body, said infusion means having at least one remotely commandable operational characteristic, command receiver means coupled to said infusion means for receiving command signals, and means for telemetering operational information pertaining to said infusion apparatus out of said living body; command source means external to said living body for transmitting said command signals to be received by said command receiver means; and means for receiving said telemetered operational information external to said living body.