초록 ▼

A medication infusion pump is provided for controlled delivery of medication to a patient, wherein the pump includes a space-efficient flexible drive plunger for advancing a piston within a medication-containing syringe or cartridge for administration of the medication to a patient. The infusion pum

A medication infusion pump is provided for controlled delivery of medication to a patient, wherein the pump includes a space-efficient flexible drive plunger for advancing a piston within a medication-containing syringe or cartridge for administration of the medication to a patient. The infusion pump comprises a compact housing defining a syringe chamber for receiving and supporting the barrel of a medication-containing syringe or cartridge having a nose end adapted for luer connection to catheter tubing through which the medication is delivered to the patient. An open rear end of the syringe barrel carries a piston which can be advanced in a controlled manner to dispense the medication. In the preferred form, the flexible drive plunger comprises a spring tape with a free end adapted for removable connection to the piston. The spring tape extends within the pump housing through a space-efficient curved path and is associated with a pump drive motor for advancing the piston within the syringe barrel to deliver the medication to the patient.

대표청구항 ▼

A medication infusion pump, comprising: a pump housing defining a syringe chamber for receiving and supporting a syringe barrel having a selected medication therein and a sliding piston within said barrel for advancement therein to administer the medication to a patient; a pump drive motor; a flexib

A medication infusion pump, comprising: a pump housing defining a syringe chamber for receiving and supporting a syringe barrel having a selected medication therein and a sliding piston within said barrel for advancement therein to administer the medication to a patient; a pump drive motor; a flexible drive member operably connected between said syringe piston and said drive motor, said flexible drive member having at least a portion thereof extending within said housing through a curved path, and said flexible drive member having sufficient longitudinal stiffness to advance said piston within said barrel in response to operation of said drive motor and; a take-up spool within said housing and having said flexible drive member wound thereon, said drive motor including means for unwinding said flexible drive member from said take-up spool, said drive motor including a drive capstan roller and a pinch roller with said flexible drive member passing therebetween, said drive capstan roller being rotatably driven to advance said flexible drive member toward the syringe piston.