Method and apparatus for delivering or withdrawing fluids
US5120305A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 1990 |
| Grant date | Jun 9, 1992 |
| Priority date | — |
| Expiry date | May 11, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/1064
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus is provided for delivering and/or withdrawing fluids. For example, blood may be salvaged from a body cavity of a patient, in which a wand is provided having separate conduits for fluids. Means, for example a valve, is provided for opening or closing the desired conduits, depending upon whether the fluid is to be salvaged or lost to waste, sampled or returned directly to circulation. The apparatus is adapted for surgical use, and most particularly when a partial vacuum is drawn through the conduits, such that operation of the valve can exert a partial vacuum on one or more of the conduits. The entry ends of the conduits are disposed adjacent each other, with the conduits being joined as a wand. The valve is adapted for being actuated upon being held in the hand of the operator. For example, salvage of blood can be collected for autotransfusion to the patient directly, waste irrigants can be collected for disposal, blood or other fluids can be sampled for analysis or blood can be collected to a processing system for subsequent infusion. When it is desired to deliver fluids, they may be delivered through one or more conduits or lumens and, if desired, removed vi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.