Catheter circuit
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.
1. A catheter comprising:
an elongated tubular portion having a proximal end and a distal end;
a circuit system located near the distal end of the elongated tubular portion, the circuit system comprising:
a hypotube located at the distal end of the elongated tubular portion and which comprises an electrically conductive material;
a positive terminal bank and a negative terminal bank terminal bank; and,
a plurality of electrical components;
wherein the hypotube, the positive terminal bank, the negative terminal bank, and the plurality of electrical components are in a form of a cylindrical shape; and,
wherein the hypotube is cut into a pattern forming electrical paths that electrically connect to the positive terminal bank, the negative terminal bank, and the plurality of electrical components.
2. The catheter of claim 1 , further comprising a proximal interface powering the circuit system.
3. The catheter of claim 2 , further comprising a first wire linked to the interface and the positive terminal bank, and a second wire linked to the interface and the negative terminal bank.
4. The catheter of claim 2 , wherein each of the plurality of electrical components is connected to a wire which is connected to the proximal interface, such that each electrical component is connected to a different wire.
5. The catheter of claim 4 , wherein each of the plurality of wires is a braided structural wire that is part of the elongated tubular portion.
6. The catheter of claim 1 , wherein the hypotube is further coated with an electrically isolating material.
7. The catheter of claim 6 , wherein the electrically isolating material is parylene.
8. The catheter of claim 6 , wherein the hypotube is encapsulated with the electrically isolating material.
9. The catheter of claim 6 , wherein the electrically isolating material comprises a first layer and a second layer.
10. The catheter of claim 1 , wherein the hypotube includes a plurality of notched regions at one end of the hypotube.
11. The catheter of claim 10 , wherein each of the plurality of electrical components includes a notched region.
12. The catheter of claim 10 , wherein the plurality of notched regions are positioned along a proximal edge of the hypotube.
13. The catheter of claim 10 , wherein each of the plurality of notched regions is connected to a wire and each wire is connected to a proximal interface.
14. The catheter of claim 1 , wherein each of the plurality of electrical components comprise an electrical component that reduces sensor signal degradation.
15. The catheter of claim 14 , wherein each of the plurality of electrical components comprise an operational amplifier, a signal filter, a signal processor, or a Wheatstone bridge.
16. A catheter comprising:
an elongated tubular portion having a proximal end and a distal end; the elongated tubular portion forming a passage extending between the proximal end and the distal end;
a circuit system located near the distal end of the elongated tubular portion, the circuit system comprising:
a hypotube located at the distal end of the elongated tubular portion and which comprises an electrically conductive material;
a positive terminal bank and a negative terminal bank terminal bank; and,
a plurality of electrical components;
wherein the hypotube, the positive terminal bank, the negative terminal bank, and the plurality of electrical components are in a form of a cylindrical shape positioned around the passage of the elongated tubular portion; and,
wherein the hypotube is cut into a pattern forming electrical paths that electrically connect to the positive terminal bank, the negative terminal bank, and the plurality of electrical components.
17. The catheter of claim 16 , wherein the hypotube is coated with an electrically isolating material.
18. The catheter of claim 17 , wherein the hypotube comprises a metal plated polyimide material.
19. A catheter comprising:
an elongated tubular portion having a proximal end and a distal end; the elongated tubular portion forming a passage extending between the proximal end and the distal end;
a plurality of electrical wires located within a wall of the tubular portion and extending between the proximal end and the distal end of the elongated tubular portion;
a circuit system located near the distal end of the elongated tubular portion, the circuit system comprising:
a hypotube located at the distal end of the elongated tubular portion and which comprises an electrically conductive material;
a positive terminal bank and a negative terminal bank terminal bank that are connected to the plurality of electrical wires; and,
a plurality of electrical components;
wherein the hypotube, the positive terminal bank, the negative terminal bank, and the plurality of electrical components are configured into a cylindrical shape positioned around the passage of the elongated tubular portion;
wherein the hypotube is cut into a pattern forming electrical paths that electrically connect to the positive terminal bank, the negative terminal bank, and the plurality of electrical components; and,
wherein the hypotube is coated with one or more layers of electrically isolating material that isolates the electrical paths formed by the pattern.