Catheter Circuit

• US 20160345904A1
• Filed: 05/31/2016
• Published: 12/01/2016
• Est. Priority Date: 05/29/2015
• Status: Active Grant

• Current Assignee: Microvention Incorporated (Terumo Corporation)
• Original Assignee: Microvention Incorporated (Terumo Corporation)
• Inventors: Bowman, Heath
• Granted Patent: US 11,229,402 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/1214 Coils or wires
• CPC Class Codes: A61B 2017/00022 Sensing or detecting at the treatment site
• CPC Class Codes: A61B 2017/12054 Details concerning the detachment of the occluding device from the introduction device
• CPC Class Codes: A61B 2017/12068 detachable by heat
• CPC Class Codes: A61B 2560/063 Devices specially adapted for delivering implantable medical measuring apparatus
• CPC Class Codes: A61B 2562/0247 Pressure sensors
• CPC Class Codes: A61B 2562/222 Electrical cables or leads therefor, e.g. coaxial cables or ribbon cables
• CPC Class Codes: A61B 5/14542 for measuring blood gases A61B5/14551 takes precedence
• CPC Class Codes: A61B 5/6851 Guide wires
• CPC Class Codes: A61B 5/6852 Catheters
• CPC Class Codes: A61B 5/6876 Blood vessel
• CPC Class Codes: A61M 25/0051 made from fenestrated or weakened tubing layer

Abstract

A circuit system includes a user interface, voltage source, and a terminal bank connected to the voltage source. The circuit can be used in a powered catheter system where the catheter includes a structural reinforcement layer such as a braid comprised of one or more wires. The reinforcement layer can be used to convey a current or signal in a powered catheter. The catheter may utilize a hypotube element which provides integrated sensors in order to power and control multiple systems in the powered catheter.

Claims

1. A catheter comprising:

an elongated tubular portion having a proximal end and a distal end;

a plurality of wires extending between said proximal end and said distal end;

a hypotube located at said distal end of said elongated tubular portion;

said hypotube comprising a plurality of electrical paths connected to one or more of said plurality of wires;

one or more electrically powered components connected to said hypotube and in electrical communication with one or more of said electrical paths; and

,

an interface connectable to said proximal end of said elongated tubular portion to supply power to said hypotube via at least two of said plurality of wires.

2. The catheter of claim 1, wherein said hypotube is composed of a gold plated polyimide.

3. The catheter of claim 1, wherein said electrical paths on said hypotube are shaped by laser cutting said hypotube.

4. The catheter of claim 1, wherein said hypotube further comprises a positive terminal bank region and a negative terminal bank region.

5. The catheter of claim 4, wherein said one or more electrically powered components is a plurality of electrically powered components that are each connected to said positive terminal bank region and said negative terminal bank region.

6. The catheter of claim 1, wherein said one or more electrically powered components is selected from an imaging sensor, pressure sensor, temperature sensor, and oxygen sensor.

7. The catheter of claim 1, wherein said one or more electrically powered components is selected from a heater or a mechanical latch system.

8. The catheter of claim 1, wherein said hypotube further includes a circuit.

9. The catheter of claim 8, wherein said circuit is a Wheatstone bridge.

10. The catheter of claim 8, wherein said circuit is an amplifier.

11. The catheter of claim 1, wherein said hypotube includes a plurality of electrical contacts located along an interior of said hypotube.

12. A catheter comprising:

an elongated tubular portion having a proximal end and a distal end;

a hypotube located at said distal end of said elongated tubular portion and forming one or more electrical paths;

one or more electrically powered components connected to said hypotube and in electrical communication with one or more of said electrical paths; and

,

an interface connectable to said proximal end of said elongated tubular portion to supply power to said hypotube via at least two of said plurality of braided wires.

13. The catheter of claim 12, further comprising a plurality of braided structural wires supporting said elongated tubular portion, said braided structural wires electrically connected to said hypotube and to an interface at a proximal end of said catheter.

14. The catheter of claim 12, wherein said one or more electrically powered components is selected from an imaging sensor, pressure sensor, temperature sensor, and oxygen sensor.

15. The catheter of claim 12, wherein said one or more electrically powered components is selected from a heater or a mechanical latch system.