TRANSVASCULAR ACCESS METHODS

• US 20190321600A1
• Filed: 07/05/2019
• Published: 10/24/2019
• Est. Priority Date: 05/30/2012
• Status: Active Grant

• Current Assignee: Vascular Access Technologies, Inc (Merit Medical Systems, Inc.)
• Original Assignee: Vascular Access Technologies, Inc (Merit Medical Systems, Inc.)
• Inventors: Pillai, Lakshmikumar
• Granted Patent: US 11,376,403 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 2017/1107 for blood vessels
• CPC Class Codes: A61B 2017/1139 Side-to-side connections, e.g. shunt or X-connections
• CPC Class Codes: A61M 1/3653 Interfaces between patient blood circulation and extra-corporal blood circuit
• CPC Class Codes: A61M 1/3655 Arterio-venous shunts or fistulae
• CPC Class Codes: A61M 1/3659 Cannulae pertaining to extracorporeal circulation
• CPC Class Codes: A61M 25/0606 "Over-the-needle" catheter assemblies, e.g. I.V. catheters
• CPC Class Codes: A61M 27/002 Implant devices for drainage of body fluids from one part of the body to another intraocular A61F9/00781; middle ear A61F11/202
• CPC Class Codes: A61M 60/148 in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices

Abstract

Various methods employing transvascular access devices are described, including a method of placing a central catheter in a peripheral vein in an arm of a patient; a method of providing percutaneous access to the heart of a patient; a method of clearing a clotted arteriovenous dialysis graft; a method of creating multiple access points into a single blood vessel; a method of creating an AV fistula in a patient; and a method of providing a bypass to a blockage in a popliteal artery in a patient.

Claims

1. A method of placing a central catheter in a peripheral vein in an arm of a patient, the method comprising:

inserting an access device percutaneously through an entry site in a femoral vein of the patient, the access device comprising a vascular catheter;

advancing a distal end of the vascular catheter from the entry site to an exit site in the peripheral vein;

advancing a puncture tool from the distal end of the catheter through the peripheral vein wall and skin of the patient at the exit site; and

after the step of advancing the puncture tool, inserting the central catheter into the peripheral vein at the exit site.

2. The method of claim 1, wherein the peripheral vein comprises a cephalic vein.

3. The method of claim 1, wherein the peripheral vein comprises a basilic vein.

4. The method of claim 1, wherein the peripheral vein comprises a brachial vein.

5. The method of claim 1, wherein the puncture tool comprises a sharp stylet.

6. The method of claim 1, wherein the puncture tool comprises a needle-tipped guidewire.

7. The method of claim 1, further comprising inserting a micropuncture catheter into the peripheral vein at the exit site.

8. The method of claim 7, wherein the inserting the micropuncture catheter into the peripheral vein, comprises advancing the micropuncture catheter over the puncture tool into the peripheral vein.

9. The method of claim 7, further comprising inserting a guidewire into the peripheral vein through the micropuncture catheter.

10. The method of claim 9, further comprising advancing the central catheter over the guidewire into the peripheral vein.

11. The method of claim 1, further comprising advancing the puncture tool from inside the peripheral vein to outside the peripheral vein.

12. The method of claim 1, wherein the exit site comprises a central catheter entry point.

13. A method of placing a peripherally inserted central catheter in a peripheral vein in an arm of a patient, the method comprising:

inserting an access device percutaneously through an entry site in a femoral vein of the patient, the access device comprising a vascular catheter;

advancing a distal end of the vascular catheter from the entry site to an exit site in the peripheral vein;

advancing a puncture tool from the distal end of the catheter through the peripheral vein wall and skin of the patient at the exit site;

advancing a micropuncture catheter over the puncture tool into the peripheral vein;

inserting a guidewire into the peripheral vein through the micropuncture catheter; and

inserting the central catheter into the peripheral vein over the guidewire.

14. The method of claim 13, wherein the peripheral vein comprises a cephalic vein.

15. The method of claim 13, wherein the peripheral vein comprises a basilic vein.

16. The method of claim 13, wherein the peripheral vein comprises a brachial vein.

17. The method of claim 13, wherein the puncture tool comprises a sharp stylet.

18. The method of claim 13, wherein the puncture tool comprises a needle-tipped guidewire.

19. The method of claim 13, further comprising advancing the puncture tool from inside the peripheral vein to outside the peripheral vein.

20. The method of claim 13, wherein the exit site comprises a central catheter entry point.