CPC A61B 10/04 (2013.01) [A61B 1/00149 (2013.01); A61B 1/307 (2013.01); A61B 5/201 (2013.01); A61B 17/2202 (2013.01); A61B 34/20 (2016.02); A61B 34/37 (2016.02); A61B 50/13 (2016.02); A61G 13/04 (2013.01); A61M 1/85 (2021.05); A61M 3/0258 (2013.01); A61M 3/0279 (2013.01); A61M 3/0283 (2013.01); A61M 25/0662 (2013.01); A61M 29/02 (2013.01); A61B 2010/045 (2013.01); A61B 2034/2051 (2016.02); A61B 2034/2061 (2016.02); A61B 2034/301 (2016.02); A61M 2025/0681 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/3344 (2013.01); A61M 2205/50 (2013.01); A61M 2210/1082 (2013.01)] | 21 Claims |
1. A percutaneous sheath comprising:
an outer conduit extending between a proximal end and a distal end, the outer conduit including a first distal axial opening;
an inner conduit arranged within and coupled to the outer conduit such that the outer conduit extends axially beyond a distal end of the inner conduit, the inner conduit including a proximal opening and a second distal axial opening that is concentric with the first distal axial opening;
a plurality of radially-projecting wings projecting from a proximal end portion of the inner conduit;
an irrigant fluid inlet connected to an irrigation source;
a first channel defined between an inner wall of the outer conduit and an outer wall of the inner conduit, the first channel being connected to the irrigant fluid inlet and configured to provide irrigation of a fluid into a kidney;
a pressure relief valve associated with the irrigant fluid inlet, the pressure relief valve being configured to expel irrigant fluid when fluid pressure within at least a portion of the irrigant fluid inlet exceeds a threshold; and
a second channel formed by an inner wall of the inner conduit, the second channel configured to allow a catheter to:
be inserted through the second channel and out of the first and second distal axial openings into the kidney; and
provide for passive outflow of the fluid from the kidney through the inner conduit in a space between the catheter and the inner wall of the inner conduit;
wherein the space between the catheter and the inner wall of the inner conduit extends from the second distal axial opening of the inner conduit to the proximal opening of the inner conduit, such that the passive outflow of the fluid can pass through the second channel from the second distal axial opening to the proximal opening of the inner conduit.
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