System and method for monitoring and displaying balloon catheter inflation and deflation data
US5300027A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1992 |
| Grant date | Apr 5, 1994 |
| Priority date | — |
| Expiry date | Mar 18, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/10182
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electronically controlled syringe system for connection to a balloon catheter or other balloon-type member and for automatically monitoring, displaying and recording inflation data when the syringe system is used to inflate the balloon catheter or other balloon-type member. A syringe having a barrel and a syringe plunger is selectively operable to increase fluid pressure applied to the balloon catheter or other balloon member by sliding the plunger further into the barrel. Positive pressure applied to the balloon catheter or member can be released by withdrawing the syringe plunger toward the rear of the barrel. A piezoresistive semiconductor transducer housed on the barrel of the syringe senses positive fluid pressure applied by the syringe. The electric signal output by the transducer is input to a controller where the signal is digitally processed so as to derive and record therefrom electronic data representing the magnitude of applied fluid pressure, and so as also to derive the length of time that positive fluid pressure is applied and the electronic data representing this information is automatically displayed and recorded. The controller is also programmable to permit op…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.