Regional anesthesia catheter with anchor

• US 10,532,192 B2
• Filed: 03/15/2016
• Issued: 01/14/2020
• Est. Priority Date: 03/16/2015
• Status: Active Grant

• Current Assignee: Brigham and Women's Hospital Incorporated
• Original Assignee: Brigham and Women's Hospital Incorporated
• Inventors: Hurley, Ronald J., Portnoy, Roman, Philip, James H.
• Primary Examiner(s): Hayman, Imani N
• Assistant Examiner(s): Legette, Tiffany
• Application Number:
  US15/558,640
• Publication Number:
  US 20180071497A1
• Time in Patent Office: 1,400 Days
• CPC Class Codes: A61L 29/02 Inorganic materials
• CPC Class Codes: A61L 29/042 Rubbers
• CPC Class Codes: A61L 29/06 obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: A61L 29/16 Biologically active materials, e.g. therapeutic substances A61L29/048 takes precedence
• CPC Class Codes: A61M 19/00 Local anaesthesia syringes therefor A61M5/00; Hypothermia A61M5/42 takes precedence; cooling blood in a bypass of the arterial system A61M1/36
• CPC Class Codes: A61M 2025/0007 Epidural catheters
• CPC Class Codes: A61M 2025/0008 having visible markings on its surface, i.e. visible to the naked eye, for any purpose, e.g. insertion depth markers, rotational markers or identification of type
• CPC Class Codes: A61M 2025/0293 Catheter, guide wire or the like with means for holding, centering, anchoring or frictionally engaging the device within an artificial lumen, e.g. tube
• CPC Class Codes: A61M 2025/1086 having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves
• CPC Class Codes: A61M 2202/0468 non-physiological
• CPC Class Codes: A61M 2202/048 Anaesthetics
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• CPC Class Codes: A61M 25/10 Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00

Abstract

Embodiments of the invention provide a system and method for accessing an internal body region using a catheter. The catheter includes a catheter body and a medication lumen positioned within the catheter body for delivering medication to the internal body region. An inflation lumen is positioned within the catheter body. A balloon is in fluid communication with the inflation lumen, and the balloon is configured to move between a collapsed position and an expanded position as fluid enters the balloon through the inflation lumen. An anchor covers at least a portion of the balloon on an outer surface of the catheter body and includes a movable section with a first retracted position and a second deployed position. Upon inflation of the balloon, the movable section of the anchor moves radially outward from the first contracted position to the second deployed position to secure the catheter in the internal body region.

Claims

1. A catheter for accessing an internal body region, the catheter comprising:

a catheter body;

a medication lumen positioned within the catheter body for delivering a medication to the internal body region;

an inflation lumen positioned within the catheter body;

a balloon in fluid communication with the inflation lumen, the balloon configured to move between a collapsed position and an expanded position as fluid enters the balloon through the inflation lumen;

an anchor covering at least a portion of the balloon on an outer surface of the catheter body, the anchor includes a plurality of movable sections configured to move between a first retracted position and a second deployed position, each anchor having a first connection to the catheter body distal to the balloon and a second connection to the catheter body proximal to the balloon; and

wherein upon inflation of the balloon, the plurality of movable sections move radially outward from the first retracted position to the second deployed position to secure the catheter in the internal body region.

2. The catheter of claim 1, wherein each of the plurality of movable sections is defined by a longitudinal section having a length between about 0.15 inches and about 0.18 inches.

3. The catheter of claim 1, wherein the medication lumen is defined by an arcuate shape in cross-section to decrease an injection pressure required by the medication lumen.

4. The catheter of claim 1, wherein the medication for delivery to the internal body region includes at least one of saline and an anesthetic solution.

5. The catheter of claim 1, wherein the inflation lumen is coupled to a fluid source for delivering at least one of air, gas and liquid to the balloon.

6. The catheter of claim 1, wherein the anchor comprises at least one of a silicon, polyurethane, nylon, latex, and polyisoprene material.

7. The catheter of claim 1, wherein the anchor is provided in the form of a sheath and is adhesively coupled to the catheter body.

8. The catheter of claim 1, wherein the the plurality of movable sections have a bowed shape when in the second deployed position.

9. The catheter of claim 1, wherein each movable section of the the plurality of movable sections includes two segments meeting at a flexible joint when in the second deployed position.

10. The catheter of claim 1, wherein each movable section of the plurality of movable sections includes two outwardly inclined segments meeting at a flexible joint when in the second deployed position.

11. The catheter of claim 1, wherein each movable section of the plurality of movable sections has a symmetrical shape about the catheter body when in the second deployed position.

12. The catheter of claim 1, wherein each movable section of the plurality of movable sections has an asymmetrical shape about the catheter body when in the second deployed position.

13. The catheter of claim 1, wherein the internal body region is an epidural space;

and wherein the catheter is an epidural catheter for accessing the epidural space.

14. The catheter of claim 1, wherein the internal body region is a nerve region;

and wherein the catheter is a peripheral nerve catheter for accessing the nerve region.

15. A method for securing a catheter in an internal body region, the method comprising:

the catheter comprising a catheter body and an anchor including a plurality of movable sections configured to move between a first retracted position and a second deployed position, each anchor having a first connection to the catheter body distal to the balloon and a second connection to the catheter body proximal to the balloon;

inserting the catheter body into the internal body region;

delivering a medication to the internal body region through a medication lumen positioned within the catheter body; and

inflating a balloon surrounding the catheter body from a collapsed position to an expanded position as fluid enters the balloon through an inflation lumen in fluid communication therewith, wherein upon inflation of the balloon, the plurality of movable sections are configured to move from the first retracted position to the second deployed position, to cause the plurality of movable sections to move radially outward to secure the catheter in the internal body region.

16. The method of claim 15, wherein the plurality of movable sections have a bowed shape when in the second deployed position.

17. The method of claim 15, wherein each movable section of the plurality of movable sections includes two segments meeting at a flexible joint when in the second deployed position.

18. The method of claim 15, wherein each movable section of the plurality of movable sections includes two outwardly inclined segments meeting at a flexible joint when in the second deployed position.

19. The method of claim 15, wherein each movable section of the plurality of movable sections has a symmetrical shape about the catheter body when in the second deployed position.

20. The method of claim 15, wherein each movable section of the plurality of movable sections has an asymmetrical shape about the catheter body when in the second deployed position.

21. The method of claim 15, wherein the internal body region is an epidural space;

and wherein the catheter is an epidural catheter for accessing the epidural space.

22. The method of claim 15, wherein the internal body region is a nerve region;

and wherein the catheter is a peripheral nerve catheter for accessing the nerve region.