Ureteral and bladder catheters and methods of inducing negative pressure to increase renal perfusion
US11045623B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2018 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Apr 15, 2039 |
Classification
- Technology area (CPC —)General
Abstract
Ureteral catheters and assemblies are provided including: a drainage lumen including a proximal portion configured to be positioned in at least a portion of a patient's urethra and a distal portion configured to be positioned in a patient's ureter and/or kidney, the distal portion including a coiled retention portion including at least a first coil having a first diameter and a second coil having a second diameter, the first diameter being less than the second diameter; or wherein the retention portion extends radially outwardly from a portion of the distal end of the drainage lumen portion, the retention portion including a proximal end having a first diameter, a distal end having a second diameter, and a wall and/or surface extending therebetween, the retention portion having a second diameter is greater than the first diameter when deployed; or wherein the retention portion includes a plurality of drainage tubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.