Process for creating an ingrowth preventing indwelling catheter assembly
US7763142B2 · kind B2 · utility
11Cited by
36References
35Claims
0Family size
Inventor
Key dates
| Filing date | Dec 15, 2004 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Sep 7, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgically implantable delivery or drainage catheter assembly includes a porous fiber membrane that is permeable to the intended drainage or delivery fluid, yet has an outer surface morphology and porosity that prevents the ingrowth of tissue. The porous fiber membrane is created using a phase-inversion process which is controlled to select a desired porosity. A reinforcement member is also disposed within the porous fiber membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.