Catheters and systems for delivery of gas-enriched liquid into a patient
AssigneesZoll Circulation, Inc., ZOLL Medical Corporation
InventorsStephen Elwood Myrick, Kelsey Winward
Life of this patent
Estimating the term…
Abstract
A catheter is configured to be inserted into a vasculature of a patient for delivery of a gas-enriched liquid. The catheter includes a catheter body and one or more capillaries coupled to the catheter body and configured to receive a gas-enriched liquid from a gas-enriched liquid source. An end surface of the catheter includes a first end of the catheter body and a first end of the one or more capillaries. The first end of the one or more capillaries has an aperture through which the gas-enriched liquid can flow. The first end of the one or more capillaries being flush with the first end of the catheter body wherein the end surface of the catheter is smooth and includes the aperture of the one or more capillaries.
Claims76
A catheter configured to be inserted into a vasculature of a patient for delivery of a gas-enriched liquid, the catheter comprising:
- a catheter body;
- and
- two or more capillaries coupled to the catheter body and configured to receive a gas-enriched liquid from a gas-enriched liquid source;
- wherein an end surface of the catheter includes a first end of the catheter body and first ends of each of the two or more capillaries, the first ends of the two or more capillaries having apertures through which the gas-enriched liquid can flow, the first ends of the two or more capillaries being flush with the first end of the catheter body wherein the end surface of the catheter is smooth and includes the apertures of the two or more capillaries;
- the two or more capillaries being in fluid communication with the vasculature of the patient when the catheter body is inserted into the vasculature of the patient;
- the two or more capillaries being configured to dispense respective streams of the gas-enriched liquid directly into the vasculature of the patient;
- and
- the first ends of the two or more capillaries positioned relative to one another to cause the streams of the gas-enriched liquid to intersect and mix with blood of the patient in a region beyond the first end of the catheter body.
A method for forming a catheter for delivering a gas-enriched liquid, the method comprising:
- forming a catheter body configured for placement in a vasculature of a patient, the catheter body comprising two or more channels each configured for receiving capillaries that deliver a gas-enriched liquid to the vasculature of the patient when the catheter body is placed in the vasculature of the patient;
- coupling two or more capillaries to the catheter body, the two or more capillaries being configured to receive a gas-enriched liquid from a gas-enriched liquid source;
- and
- forming an end surface including a first end of the catheter body and first ends of each of the two or more capillaries, the first ends of the two or more capillaries having apertures through which the gas-enriched liquid can flow, the first ends of the two or more capillaries being flush with the first end of the catheter body so that the end surface of the catheter is smooth and includes the apertures for the two or more capillaries,
- the first ends of the two or more capillaries positioned relative to one another to cause streams of the gas-enriched liquid to intersect and mix with blood of the patient in a region beyond the first end of the catheter body.
A catheter for delivering a gas-enriched liquid comprising:
- a single capillary comprising a lumen formed by a glass wall, the single capillary including a first end, wherein the first end of the single capillary has an aperture through which a stream of gas-enriched liquid can flow;
- the single capillary being coated in a first coating layer, the first coating layer being adhered to a second coating layer by an adhesive, and
- wherein the first coating layer, the second coating layer, the glass wall, and the adhesive are polished to form a flat, continuous surface comprising the aperture.
Dependencies are inferred from the claim text.