Piston based ventilator
US5673689A · kind A · utility
164Cited by
20References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 27, 1996 |
| Grant date | Oct 7, 1997 |
| Priority date | — |
| Expiry date | Aug 27, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/0057
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A piston based ventilator for delivering breathing gas to the lungs of a patient, and more particularly a piston based ventilator that delivers breathing gas to a patient upon longitudinal movement of a piston rod and associated piston head within a piston cylinder. The piston rod is centrally located within the cylinder and moves along the cylinder in response to direct drive from a motor to move the piston head within the cylinder and displace a volume of gas to be delivered to the patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.