Aspiration device and method for determining viscoelastic properties of biological tissues and synthetic materials
US10595769B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2017 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Oct 25, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0247
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device for measuring the elastic deformability of soft tissue has a probe head having the form of a cup with a cavity, side walls and a bottom wall, a first probe channel, a pressure unit and a control unit, the first probe channel being configured to connect the pressure unit, that provides a vacuum inside first probe channel and that is controlled by the control unit with the probe head. The first probe channel has a distal end leading through the bottom wall into the cavity. The device further has a second probe channel having a distal end leading through the bottom wall into the cavity and being connected with a pressure sensor provided to determine the pressure in the cavity and to communicate it to the control unit to determine a point in time, when deformed tissue closes the distal end of the first probe channel based on a pressure difference in the two probe channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.