Perforated tubing
US4650463A · kind A · utility
50Cited by
6References
6Claims
0Family size
Inventors
Key dates
| Filing date | Dec 24, 1984 |
| Grant date | Mar 17, 1987 |
| Priority date | — |
| Expiry date | Dec 24, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M27/002
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Perforated tubing for surgical drainage applications and the like in which perforations are located in one or more grooves extending lengthwise of the tubing such that the sides of the grooves block access of tissue to the perforations and obturation of the tubing is prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.