Endoluminal delivery of anesthesia
AssigneeSilk Road Medical, Inc.
InventorDavid W. Chang
Life of this patent
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Abstract
Described herein are methods and devices for selectively applying fluids (particularly anesthetics) to a target tissue from within a blood vessel while minimizing the amount of fluid applied to non-target tissue. The injection catheters described herein may include an elongate body, a directional injector, and one or more holdfasts for securing the catheter before extending the injector. The methods of selectively applying anesthetic to a target structure generally include the steps of inserting an injection catheter into a body vessel, positioning the injection catheter within the body vessel near the target structure, anchoring the injection catheter before extending a directional injector from the injection catheter, and applying anesthetic from the injection catheter to the target structure.
Claims6
A method of applying anesthetic to a target structure from within a body vessel, the method comprising:
- inserting the injection catheter into a body vessel near a sinus nerve, the injection catheter including an internal lumen and a directional injector;
- releasing the directional injector from the injection catheter via an exit port of the injection catheter such that the directional injector of the injection catheter can apply anesthetic selectively to a region adjacent the sinus nerve;
- deploying a stiff member to anchor the injection catheter;
- extending the directional injector to deliver anesthetic to the region;
- and
- applying anesthetic from the injection catheter to the region.
Dependencies are inferred from the claim text.