Pneumatic syringe driver
US7195610B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 17, 2002 |
| Grant date | Mar 27, 2007 |
| Priority date | — |
| Expiry date | Mar 31, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/10185
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A pneumatic syringe driver having a control module for regulating pressure applied to the plunger of an associated syringe is disclosed. The syringe driver is adapted for receiving a compressed gas canister and for enabling the selective release of gas from the canister into a chamber, one wall of which being formed by the syringe plunger via a three-way valve. The valve also enables the selective venting of gas from the canister into the atmosphere, thereby forming a venturi which reduces the pressure in the chamber and causes the syringe plunger to be withdrawn into the chamber. A pressure sensor in communication with the control module is provided for pressure feedback. Pushbuttons or switches in communication with the control module are provided for defining the syringe driver operation. The device is suited for the selective inflation and deflation of a balloon attached to the syringe driver for a balloon angioplasty procedures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.