Autologous biologic pump motor
US4979936A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1987 |
| Grant date | Dec 25, 1990 |
| Priority date | — |
| Expiry date | Apr 28, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3303
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus and method for use in assisting a human heart is disclosed. A skeletal muscle is formed into a pouch which then surrounds a collapsible, shape-retaining bladder. The bladder is connected to a second bladder enclosed in a sheath around a portion of the aorta. The bladders are filled with a fluid such that when the skeletal muscle contracts in response to an electrical stimulation, the fluid is forced from the first bladder into the bladder sheathed with the aorta, expanding that bladder and forcing the aorta to compress. A period of vascular delay and electrically stimulated training is preferred after the pouch is formed and before use in conjunction with the aorta. Use of a gate means between the two bladders enables implantation of the entire system in one surgical procedure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.