Granted Patent B2

US 12,208,224 · App. 17/010,271 · Granted Jan 28, 2025

Inventors: Lixiao Wang (Henderson, NV); John J. Chen (Plymouth, MN); Yongxing Zhang (Irvine, CA)

Assignee: Neurotronic, Inc.

A61M25/1002A61B18/06A61K31/045A61M5/007A61M5/142A61M5/172A61M25/1011A61M29/02A61B2018/00577A61M2025/105A61M2025/1052A61M2202/02

Abstract

Claims (27)

1. A method for treating a body lumen, the method comprising:

inserting a first delivery catheter into a first treatment site in a renal artery, a main renal artery, a renal branch artery, an extra-renal branch artery, a common hepatic artery, a hepatic artery, a hepatic celiac artery, a left hepatic artery, a right hepatic artery, a gastroduodenal artery, a splenic artery, a celiac artery, a gastric artery, right gastric artery, a left gastric artery, a proper hepatic artery, or an esophageal branch artery;

simultaneously infusing a chemical formulation comprising ethanol and having a temperature of 15° C. to 80° C. and/or delivering energy from the first delivery catheter to a tissue of the body lumen at the first treatment site, wherein the chemical formulation infused and the energy delivered is effective to injure and damage the tissue at the first treatment site, wherein the chemical formulation provides active cooling and chemical ablation during the energy delivery from the first delivery catheter;

withdrawing the first delivery catheter from the first treatment site;

inserting a second delivery catheter that is the same or different as the first delivery catheter into a second treatment site in a renal artery, a main renal artery, a renal branch artery, an extra-renal branch artery, a common hepatic artery, a hepatic artery, a hepatic celiac artery; a left hepatic artery, a right hepatic artery, a gastroduodenal artery, a splenic artery, a celiac artery, a gastric artery, right gastric artery, a left gastric artery, a proper hepatic artery, or an esophageal branch artery, wherein the second treatment site is a different treatment site than the first treatment site;

simultaneously infusing a chemical formulation comprising ethanol and having a temperature of 15° C. to 80° C. and delivering energy from the second delivery catheter to a tissue of the body lumen at the second treatment site, wherein the chemical formulation infused and/or the energy delivered is effective to injure and damage the tissue at the second treatment site, wherein the chemical formulation provides active cooling and chemical ablation during the energy delivery from the second delivery catheter; and

withdrawing the second delivery catheter from the second treatment site;

wherein the injury and/or damage to the tissue at the first treatment site and to the tissue at the second treatment site is effective to have a benefit of relieving symptoms comprising reduction of HbA1c(A1c), glucose level, body weight, blood pressure, or a combination thereof.

2. The method of claim 1 , wherein the first and/or second delivery catheter is a balloon catheter and the method further comprises:

inflating the first delivery catheter after the insertion to the first treatment site and deflating the first delivery catheter prior to the withdrawing from the first treatment site; and/or

inflating the second delivery catheter after the insertion to the second treatment site and deflating the second delivery catheter prior to the withdrawing from the second treatment site.

3. The method of claim 1 , wherein the chemical formulation comprises one or more ingredients chosen from water, saline, hypertonic saline, phenol, methanol, ethanol, absolute alcohol, isopropanol, propanol, butanol, isobutanol, ethylene glycol, glycerol, acetic acid, lactic acid, propyl iodide, isopropyl iodide, ethyl iodide, methyl acetate, ethyl acetate, ethyl nitrate, isopropyl acetate, ethyl lactate, lipiodol, urea, and derivatives thereof.

4. The method of claim 1 , wherein the chemical formulation comprises ethanol and water, an ethanol/water azeotrope, or ethanol and acetic acid.

5. The method of claim 1 , wherein the chemical formulation is absolute ethanol.

6. The method of claim 1 , wherein the energy is chosen from radiofrequency, microwave, laser, ultrasound, high intensity focused ultrasound, and combinations thereof.

7. The method of claim 1 , wherein the first and/or second delivery catheter comprises a needle catheter or a needle-based catheter.

8. The method of claim 1 , wherein the method is a method of treating diabetes.

9. The method of claim 1 , wherein the method is a method of treating obesity.

10. The method of claim 1 , wherein the method is a method of treating both diabetes and obesity.

11. A method for treating a body lumen, the method comprising:

inserting a first delivery catheter into a first treatment site in a renal artery, a main renal artery, a renal branch artery, an extra-renal branch artery, or a common hepatic artery;

infusing a chemical formulation comprising ethanol and/or delivering energy from the first delivery catheter to a tissue of the body lumen at the first treatment site, wherein the chemical formulation infused and/or the energy delivered is effective to injure and/or damage the tissue at the first treatment site;

withdrawing the first delivery catheter from the first treatment site;

inserting a second delivery catheter that is the same or different as the first delivery catheter into a second treatment site in the same artery as the first treatment site;

infusing a chemical formulation comprising ethanol and/or delivering energy from the second delivery catheter to a tissue of the body lumen at the second treatment site, wherein the chemical formulation infused and/or the energy delivered is effective to injure and/or damage the tissue at the second treatment site; and

withdrawing the second delivery catheter from the second treatment site;

wherein the injury and/or damage to the tissue at the first treatment site and to the tissue at the second treatment site is effective to have a benefit of relieving symptoms comprising reduction of HbA1c(A1c), glucose level, body weight, blood pressure, or a combination thereof.

Assignments (1)

Continuity (14)

References Cited (353)

Cited By (4)

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