System and method for detecting access disconnection
US8926544B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Apr 20, 2012 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Aug 21, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3334
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dialysis system includes: a blood filter; a dialysate pump connected to a dialysate portion of the blood filter; a blood pump connected to a blood portion of the blood filter, the blood pump including a diaphragm that is moved in cycles to pump the blood, the cycles having a flow period and a no-flow period; a patient access device in fluid communication with the blood portion of the blood filter, the no-flow period having a first characteristic of a property when the patient access device is lodged in a patient and a second characteristic of the property when the patient access device is dislodged from the patient; and a logic implementer configured to determine that the patient access device has been dislodged from the patient when the second characteristic of the parameter is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.