Percutaneous access device with removable tube
US4668222A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 25, 1984 |
| Grant date | May 26, 1987 |
| Priority date | — |
| Expiry date | May 25, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/26
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed is a percutaneous access device (PAD) with a connector lock which facilitates replacement and removal of tubes transmitting materials to or from the body of a patient without the need for surgery and with minimal interference with an implanted PAD. The lock may include a screw ring and elastomeric seal attachable to the neck of the device through which a tube extends, and the neck has recesses in its outer surface to permit it to be tightly restrained during tightening or loosening of the lock. A flat skirt or flange provides subdermal anchoring of the buttonlike percutaneous access device, and a two-stage porous bed covering portions of the neck and skirt promotes formation of a tight dermal/biomaterial barrier near the junction of the two stages of the porous bed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.