Medication infusion pump with flexible drive plunger
US5637095A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1995 |
| Grant date | Jun 10, 1997 |
| Priority date | — |
| Expiry date | Jan 13, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C17/0113
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.