Deep vein thrombosis therapeutic methods

Patent metadata

Field	Value
Publication number	US-11040140-B2
Application number	US-201414266218-A
Country	US
Kind code	B2
Filing date	Apr 30, 2014
Priority date	Dec 31, 2010
Publication date	Jun 22, 2021
Grant date	Jun 22, 2021

Abstract

The invention provides methods for diagnosing and treating deep vein thrombosis and other conditions associated with occluded or constricted vessels. According to certain aspects, methods of the invention involve inserting a sensing device into a vessel having a thrombus therein, assessing, with the sensing device, one or more functional parameters within the vessel, determining an interventional therapy for treating the thrombus based on the assessing step; and performing the interventional therapy.

First claim

What is claimed is:

1. A method for evaluating an interventional therapy applied to a deep vein thrombosis, the method comprising:
receiving, from a sensing device inserted into a vessel having a thrombus therein, one or more functional parameters;
assessing the one or more functional parameters within the vessel to guide the interventional therapy for treating the thrombus;
providing the interventional therapy for treating the thrombus, the interventional therapy being provided by an interventional catheter arranged over the sensing device; and
continuously monitoring changes in the one or more functional parameters while the delivery of the interventional therapy is performed to evaluate the interventional therapy, wherein the one or more functional parameters comprise fluid flow.

2. The method of claim 1 , wherein the functional parameter comprises a pressure gradient across the thrombus, wherein the assessing comprises determining the pressure gradient across the thrombus, and wherein the interventional therapy is continually applied to the thrombus until the monitoring step indicates that the pressure gradient across the thrombus reaches a reference value.

3. The method of claim 1 , wherein the sensing device comprises a guidewire, and wherein the guidewire comprises one or more data collectors selected from the group consisting of a pressure sensor, a flow sensor, an imaging element, and combinations thereof.

4. The method of claim 1 , wherein the interventional catheter is an ablation catheter and providing the interventional therapy comprises ablating the thrombus with the ablation catheter.

5. The method of claim 1 , wherein the interventional catheter comprises a cutting element; and providing the interventional therapy comprises cutting the thrombus and removing the thrombus with the cutting element.

6. The method of claim 1 , wherein the interventional therapy comprises injecting a clot-dissolving substance into the vessel via the interventional catheter.

7. The method of claim 1 , wherein the one or more functional parameters comprise at least one of: pressure, coronary flow reserve (CFR), and instantaneous wave-free radio (iFR).

8. The method of claim 1 , further comprising the step of stopping the interventional therapy based on the monitoring step.

9. The method of claim 1 , further comprising the step of continuing the interventional therapy based on the monitoring step.

10. The method of claim 1 , wherein the assessing and monitoring steps comprise measuring the one or more functional parameters with the sensing device; and comparing the measured functional parameters against one or more reference levels.

11. The method of claim 1 , wherein the method is performed by a computing device.

12. A method for treating deep vein thrombosis with a sensing guidewire inserted into a vessel having a thrombus therein, the sensing guidewire comprising one or more data collectors located on a distal housing and an interventional catheter arranged over the sensing guidewire, the method comprising:
receiving, from the one or more data collectors of the sensing guidewire within the vessel, one or more functional parameters;
assessing the one or more functional parameters to thereby guide an interventional therapy for treating the thrombus, the interventional therapy being provided by the interventional catheter while the interventional catheter is arranged over the sensing guidewire; and
during the performance of the interventional therapy being provided by the interventional catheter arranged over the sensing guidewire, continually monitoring, using the sensing guidewire, changes in one or more of the functional parameters so that the interventional therapy continues until the one or more of the functional parameters reaches a reference level, wherein the one or more functional parameters comprise fluid flow.

13. The method of claim 12 , wherein the one or more data collectors are selected from the group consisting of a pressure sensor, a flow sensor, an imaging element, and combinations thereof.

14. The method of claim 12 , wherein the interventional catheter is an ablation catheter and performance of the interventional therapy comprises ablating the thrombus with the ablation catheter.

15. The method of claim 12 , wherein the interventional catheter comprises a cutting element; and performance of the interventional therapy comprises cutting and removing the thrombus with the cutting element.

16. The method of claim 12 , wherein the interventional therapy comprises injecting a clot-dissolving substance into the vessel via the interventional catheter.

17. The method of claim 12 , wherein the one or more functional parameters comprise at least one of: pressure, coronary flow reserve (CFR), and instantaneous wave-free radio (iFR).

18. The method of claim 12 , wherein the interventional therapy continues or stops based on monitored changes in the one or more functional parameters.

19. The method of claim 12 , wherein the method is performed by a computing device.

20. The method of claim 12 , wherein the functional parameter comprises a pressure gradient across the thrombus, wherein the assessing comprises determining the pressure gradient across the thrombus, and wherein the interventional therapy is continually applied to the thrombus until the monitoring step indicates that the pressure gradient across the thrombus reaches a reference value.

Assignees

• Volcano Corp
• Philips Image Guided Therapy Corp

Inventors

• Unser John
• Brown Joseph Edward
• Margolis Marja P
• Gaddis Mary Lynn

Classifications

• A61B18/1492 Primary

  having a flexible, catheter-like structure, e.g. for heart ablation (A61B18/1477 takes precedence) · CPC title

• A61B2018/1415

  multiple blades · CPC title

• A61B2017/22021

  electric leads passing through the catheter · CPC title

• A61B18/02

  by cooling, e.g. cryogenic techniques · CPC title

• A61B5/02152

  specially adapted for venous pressure · CPC title