Obstetrical vacuum extractor cup with soft molded lip
US5935136A · kind A · utility
127Cited by
32References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | May 9, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/442
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The obstetrical vacuum extractor includes a vacuum cup molded of a first, relatively rigid material, with a lip of a second, relatively soft material secured along the basal opening. An elongated hollow stem which may be coupled to a vacuum source communicates with the interior and, accordingly, the basal opening of the vacuum cup. The first, relatively rigid material of the cup is preferably substantially transparent so that the physician may readily monitor the condition of the fetal scalp throughout delivery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.