Subcutaneous peritoneal injection catheter
US4405305A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1981 |
| Grant date | Sep 20, 1983 |
| Priority date | — |
| Expiry date | Feb 17, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M39/0208
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A novel implantable, peritoneal injection catheter apparatus and method, the apparatus including an open top, fluid-receiving reservoir mounted to one end of a hollow stem and a penetrable membrane covering the open top of the receiving reservoir. The hollow stem is configurated to extend into the peritoneal cavity and includes a retaining flange system for retaining the hollow stem in fluid communication with the peritoneal cavity. The penetrable membrane serves as an injection site for inserting a hollow needle into the receiving reservoir. The penetrable membrane also includes a dome configuration that may be depressed to expel injection fluids from the reservoir into the peritoneal cavity. A substantial portion of the injection catheter is covered with a velour coating to accomodate tissue ingrowth for further securement of the catheter in the tissue of the abdominal wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.