초록 ▼

A Finger Actuated Medication Infusion System (FAMIS) for delivering a dosage of medication into a living body. The FAMIS is fully mechanical and comprises a reservoir, a pump and connecting catheters. The reservoir includes a sealed bellows portion which contains a pressurant and exerts a substantia

A Finger Actuated Medication Infusion System (FAMIS) for delivering a dosage of medication into a living body. The FAMIS is fully mechanical and comprises a reservoir, a pump and connecting catheters. The reservoir includes a sealed bellows portion which contains a pressurant and exerts a substantially constant pressure on the medication in the reservoir, regardless of the amount of medication therein. The pump includes a bellows assembly disposed within an equalizing pressure chamber, and will deliver medication through the bellows assembly at a predetermined flow rate independent of ambient temperature, ambient pressure or the amount of medication remaining in the reservoir. The FAMIS design also provides safeguards against inadvertant overdosing, transmission of bacteria into the body and prevents gas bubbles within the reservoir from impeding the flow of medication through an outlet flow restrictor which forms part of the FAMIS pump.

대표청구항 ▼

An apparatus for delivering a flow of medication over an extended period of time into a living body, said apparatus comprising: a medication reservoir for holding said medication in readiness for delivery into said living body; pump means for receiving medication from said reservoir and for mechanic

An apparatus for delivering a flow of medication over an extended period of time into a living body, said apparatus comprising: a medication reservoir for holding said medication in readiness for delivery into said living body; pump means for receiving medication from said reservoir and for mechanically delivering said medication at a predetermined decaying dosage rate having a predetermined maximum into said living body over the extended period of time connecting means for facilitating passage of said medication from said reservoir to said pump means and communicating therebetween; dosing means disposed within and forming part of said pump means, for providing a predetermined dosage of medication for delivery into the living body, said pump means being manually actuatable with a predetermined stroke to fill said dosing means with said predetermined dosage by drawing medication from said reservoir, and said dosing means being operable to deliver medication into the living body upon release of said pump means; and limiting means disposed downstream from said dosing means for limiting the dosage rate and cooperable with said dosing means to limit the dosage to said predetermined maximum, regardless of the number of times said pump means is actuated, thereby ensuring that the maximum dosage of medication is maintained at a safe level for any given period of time.