Ureteral and bladder catheters and methods of inducing negative pressure to increase renal perfusion
US10926062B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2017 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Sep 10, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2230/65
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A ureteral catheter includes a drainage lumen having a proximal portion configured to be positioned in at least a portion of a patient's urethra and/or bladder and a distal portion configured to be positioned in a patient's kidney, renal pelvis, and/or in the ureter adjacent to the renal pelvis. The distal portion includes a retention portion for maintaining positioning of the distal portion of the drainage lumen. The retention portion includes a plurality of sections, each section having one or more openings on a sidewall of the retention portion for permitting fluid flow into the drainage lumen. A total area of openings of a first section of the plurality of sections is less than a total area of openings of an adjacent second section of the plurality of sections. The second section is closer to a distal end of the drainage lumen than the first section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.