Dissolution testing with in-situ gravimetric volume measurement
US7938032B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 2008 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Jun 9, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G23/3728
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dissolution test apparatus includes a vessel support member, weight sensors, a movable component, a media transport cannula, a pump, and an electronic controller. The vessel support member receives vessels. A weight sensor is located at each vessel site. Each weight sensor contacts a vessel and transmits a measurement signal indicative of the weight of the vessel and any contents therein. The movable component moves the media transport cannula toward a vessel site. The pump establishes media flow between the media transport cannula and the selected vessel. The controller communicates with the weight sensors and may also communicate with the pump. Based on the measurement signals received from the weight sensors, the electronic controller may calculate the volume of media in a given vessel. The electronic controller may also control media flows to or from the vessels by transmitting control signals to the pump assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.