Artificial kidney set with electronic key
US6468241B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2000 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Oct 28, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/60
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An integrated disposable set for dialysis or ultrafiltration treatment of blood is disclosed that includes a memory “key” chip. The key contains information relating to the set, including calibration for sensors, model and date of manufacture and a proprietary secret code to prevent unauthorized duplication of a circuit. The key is activated when treatment of a patient begins to prevent reuse of the set and a delay in use of the set that is too long. Patient data and operational information can be stored in the key during treatment. The key can be returned to the manufacturer or entered into hospital database for analysis. The key is preferably an EEPROM chip that can be embedded in an integral circuit sensor or a separate plug in device, such as a code card.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.