Dental pump system for chemical caries removal
US4957436A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 1986 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | Mar 28, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C1/0084
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A fluid dispensing system comprising a flexible container for simultaneously dispensing two fluids, and dispensing apparatus for controlled compression of the container. The flexible container includes two separate and independent compartments, each compartment comprising a reservoir portion for holding a supply of one of said two fluids, an outlet and a bi-ended labyrinthine portion communicating with the reservoir portion at one end thereof and with the outlet at the other end thereof. The dispensing apparatus includes a frame having a fixed wall and a movable container impinging member for movement relative to the fixed wall for squeezing the container therebetween to effect the dispensing of the two fluids therefrom substantially simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.