Inflatable and expandable direct manual cardiac compression device
US5571074A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 1994 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | May 27, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3303
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A heart massager for substernal heart massage is disclosed. The heart massager utilizes a heart-contacting member adapted for insertion into a thoracic cavity for directly contacting the heart and a handle attached thereto for manually manipulating the apparatus. The heart-contacting member includes a cup having one end which is open and which receives the handle, and another end which is closed by an at least partially concave-shaped diaphragm which forms a heart contacting surface and allows the member to conform to the shape of the heart's surface. The ends of the cup are joined by a flexible sidewall which flares outward from the handle in its operative state. The cup's flexible sidewall allows the heart-contacting member to collapse so that it can be inserted into a relatively small incision in the chest cavity. After the heart-contacting member is inserted, fluid pressure is applied to the inside of the cup, thereby causing it to expand into its operative state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.