Patient movement sensor
US11045174B2 · kind B2 · utility
0Cited by
11References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 13, 2016 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Nov 17, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0219
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A motion sensor for detecting the movement of a patient is provided and includes a housing, a spring loaded return mechanism supported in the housing, an encoder, and a sensor. The spring loaded return mechanism includes a spool rotatably supported within the housing, a biasing member coupled to the housing and the spool, and a cord supported on the spool. The encoder is located on the spool and is configured to monitor a length of cord extended from the housing. The sensor is configured to communicate a signal when the cord is extended beyond a predetermined or preset length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.