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.
Claims12
A method of applying anesthetic to a target structure from within a body vessel without substantially applying anesthetic to non-target structures, the method comprising:
- inserting an injection catheter into a body vessel, wherein the injection catheter comprises a directional injector configured to apply anesthetic selectively to the target structure;
- positioning the injection catheter within the body vessel near the target structure;
- anchoring the injection catheter;
- extending the directional injector to deliver anesthetic to the target structure;
- and
- applying anesthetic from the injection catheter to the target structure.
A method of applying anesthetic to a subject's sinus nerve from within the carotid artery, the method comprising:
- inserting an injection catheter into the carotid artery, wherein the injection catheter comprises a directional injector configured to apply anesthetic selectively to the sinus nerve;
- positioning the injection catheter within the carotid artery near the sinus nerve;
- anchoring the injection catheter;
- extending the directional injector to selectively deliver anesthetic to the sinus nerve;
- and
- applying anesthetic from the injection catheter to the sinus nerve.
A method of applying anesthetic to a target tissue from within a blood vessel while minimizing the amount of anesthetic applied to non-target tissue, the method comprising:
- inserting an injection catheter into a blood vessel, wherein the injection catheter has a directional injector configured to controllably release anesthetic and a holdfast configured to anchor the injection catheter within the blood vessel;
- positioning the injection catheter within the blood vessel adjacent to the target tissue by visualizing the directional injector and the target tissue;
- and
- applying anesthetic from the injection catheter to the target structure.
Dependencies are inferred from the claim text.