COMBINATION STEERABLE CATHETER AND SYSTEMS

• US 20180028787A1
• Filed: 07/27/2017
• Published: 02/01/2018
• Est. Priority Date: 07/29/2016
• Status: Active Grant

• Current Assignee: Cephea Valve Technologies, Inc. (Abbott Laboratories Incorporated)
• Original Assignee: Randolf von Oepen
• Inventors: McNiven, Sean A., Valencia, Francisco, von Oepen, Randolf
• Granted Patent: US 10,974,027 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/0215 by means inserted into the body catheters A61M25/00
• CPC Class Codes: A61B 5/6852 Catheters
• CPC Class Codes: A61F 2/24 Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/2466 Delivery devices therefor
• CPC Class Codes: A61M 2025/004 characterized by lumina being arranged circumferentially
• CPC Class Codes: A61M 2025/0046 Coatings for improving slidability
• CPC Class Codes: A61M 2025/0047 the inner layer having a higher lubricity
• CPC Class Codes: A61M 2205/332 Force measuring means
• CPC Class Codes: A61M 2205/3334 Measuring or controlling the flow rate
• CPC Class Codes: A61M 25/0026 Multi-lumen catheters with stationary elements catheter assemblies comprising a catheter in combination with a guide tube, sheath or sleeve A61M2025/0681; catheters comprising telescoping coaxial elements A61M2025/0175
• CPC Class Codes: A61M 25/0045 multi-layered, e.g. coated coating materials A61L29/08
• CPC Class Codes: A61M 25/0136 Handles therefor
• CPC Class Codes: A61M 25/0147 with movable mechanical means, e.g. pull wires

Abstract

A steerable catheter has a body with an outer surface and an inner surface defining a central lumen. The outer surface and inner surface define a wall of the body, which has a plurality of steering lumen and control lumen extending longitudinally therethrough. The body includes a body material. The steering lumen and control lumen have a control lumen lining and steering lumen lining, respectively, with a higher durometer than the body material. A steering wire is positioned within the steering lumen and a control wire is positioned within the control lumen.

Claims

1. A multi-lumen catheter, the catheter comprising:

a body having an outer surface and an inner surface defining a wall therebetween, the inner surface defining a central lumen along a longitudinal direction;

a steering lumen defined by a steering lumen surface positioned in the wall of the body, the steering lumen surface having a steering lumen lining affixed thereto, an inner surface of the steering lumen lining defining a steering lumen width; and

a control lumen defined by a control lumen surface positioned in the wall of the body, the control lumen surface having a control lumen lining affixed thereto, an inner surface of the control lumen lining defining a control lumen width.

2. The catheter of claim 1, the catheter having a plurality of steering lumen and at least one control lumen.

3. The catheter of claim 1, the steering lumen lining having a higher durometer than the body.

4. The catheter of claim 1, the steering lumen lining having a different durometer than the control lumen lining.

5. The catheter of claim 1, the steering lumen width being greater than the control lumen width.

6. The catheter of claim 1, wherein the catheter includes a greater number of control lumen than steering lumen.

7. The catheter of claim 1, wherein the central lumen has a central lumen width between 0.200 inches and 0.300 inches.

8. The catheter of claim 7, wherein the steering lumen has a steering lumen width between 0.020 inches and 0.030 inches.

9. An intravascular device delivery system, the system comprising:

an elongate member including;

a body having a proximal end and a distal end, the body having an outer surface and an inner surface defining a wall therebetween, the inner surface defining a central lumen along a longitudinal direction,

a steering lumen defined by a steering lumen surface positioned in the wall of the body, the steering lumen surface having a steering lining affixed thereto, an inner surface of the steering lining defining a steering lumen width, and

a control lumen defined by a control lumen surface positioned in the wall of the body, the control lumen surface having a control lining affixed thereto, an inner surface of the control lining defining a control lumen width;

a steering cable located in the steering lumen, the steering cable having a distal end piece located at a distal end of the steering cable and distally of the distal end of the steering lumen;

a control wire located in the control lumen; and

a handle with one or more controls connected to the proximal end of the body and operably connected to the steering cable and control wire.

10. The system of claim 9, wherein the distal end piece of the steering cable has a transverse dimension greater than the steering lumen width.

11. The system of claim 9, wherein the control wire extends distally of the steering cable.

12. The system of claim 9, further comprising a lubricious coating on the inner surface of the body.

13. The system of claim 9, wherein the steering cable has a tensile strength of greater than 40 pounds (177.9 Newtons).

14. The system of claim 9, wherein the control wire has a tensile strength of greater than 40 pounds (177.9 Newtons).

15. The system of claim 9, further comprising a second steering lumen and a second steering cable, the second steering lumen positioned in the wall of the body opposite the steering lumen across the central lumen and the second steering cable located in the second steering lumen.

16. An intravascular device delivery system, the system comprising:

an elongate member including;

a body having a proximal end and a distal end and including a body material, the body having an outer surface and an inner surface defining a wall therebetween, the inner surface defining a central lumen along a longitudinal direction,

a steering lumen defined by a steering lumen surface positioned in the wall of the body, the steering lumen surface having a steering lining affixed thereto, an inner surface of the steering lining defining a steering lumen diameter, and

a control lumen defined by a control lumen surface positioned in the wall of the body, the control lumen surface having a control lining affixed thereto, an inner surface of the control lining defining a control lumen diameter;

a distal end cap positioned at the distal end of the body, the distal end cap having a steering aperture and a control aperture, the steering aperture rotationally aligned with the steering lumen and the control aperture rotationally aligned with the control lumen;

a steering cable located in the steering lumen and steering aperture, the steering cable having a distal end piece located at a distal end of the steering cable and distally of the distal end of the steering lumen;

a control wire located in the control lumen and steering aperture; and

a handle with one or more controls connected to the proximal end of the body and operably connected to the steering cable and control wire.

17. The system of claim 16, wherein the body includes a body material and the distal end cap includes an end cap material having a higher durometer than the body material.

18. The system of claim 16, wherein the distal end piece of the steering cable has a transverse dimension greater than a transverse dimension of the steering aperture.

19. The system of claim 16, wherein the distal end cap further comprises at least one arm extending proximally into the central lumen.

20. The system of claim 16, wherein the distal end piece of the steering cable is integrally formed with the steering cable.

21. The system of claim 16, further comprising a lumen formed in the wall of the body, the lumen extending from the proximal end of the body to the distal end of the body, the lumen being configured to take active or passive measurements of the environment of the system.

22. The system of claim 21, wherein the lumen in the wall of the body has a sensor or transducer disposed therein to measure pressure, temperature, stress, strain, displacement, angular rotation, load, or fluid flow.