INTRAJUGULAR CATHETER

• US 20090240122A1
• Filed: 05/01/2007
• Published: 09/24/2009
• Est. Priority Date: 05/04/2006
• Status: Active Grant

• Current Assignee: Cleveland Clinic Foundation
• Original Assignee: Cleveland Clinic Foundation
• Inventors: Avitsian, Rafi
• Granted Patent: US 7,998,123 B2
• Time in Patent Office: Days
• US Class Current: 600/309
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/026 Measuring blood flow A61B3/1233, A61B3/1241 take precedence
• CPC Class Codes: A61B 5/14503 invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors A61B5/1459, A61B5/1464, A61B5/1473, A61B5/1482, A61B5/14865 take precedence
• CPC Class Codes: A61M 2025/004 characterized by lumina being arranged circumferentially
• CPC Class Codes: A61M 25/0023 by the form of the lumen, e.g. cross-section, variable diameter
• CPC Class Codes: A61M 25/0029 characterized by features relating to least one lumen located at the middle part of the catheter, e.g. slots, flaps, valves, cuffs, apertures, notches, grooves or rapid exchange ports catheter shaft surface irregularities A61M2025/006
• CPC Class Codes: A61M 25/0032 characterized by at least one unconventionally shaped lumen, e.g. polygons, ellipsoids, wedges or shapes comprising concave and convex parts

Abstract

A catheter for insertion into a vascular system of a patient and for directing fluid flow includes a catheter body having a longitudinal axis and longitudinally spaced proximal and distal catheter ends with an intermediate catheter portion defined therebetween. An intermediate catheter outlet in the catheter body is located in the intermediate catheter portion and is spaced longitudinally from the proximal and distal catheter ends. A first lumen is defined within the catheter body and has longitudinally spaced proximal and distal first lumen ends with a reversing bend located therebetween, the first lumen providing fluid communication between the proximal catheter end and the intermediate catheter outlet. The reversing bend is located longitudinally between the intermediate catheter outlet and the distal catheter end. The reversing bend directs fluid flow to turn approximately 180° as the fluid flows through the first lumen. A method of using the catheter is also described.

Claims

1. A catheter for insertion into a vascular system of a patient and for directing fluid flow, the catheter comprising:

a catheter body having a longitudinal axis and longitudinally spaced proximal and distal catheter ends with an intermediate catheter portion defined therebetween;

an intermediate catheter outlet in the catheter body, located in the intermediate catheter portion, and spaced longitudinally from the distal catheter end; and

a first lumen defined within the catheter body and having longitudinally spaced proximal and distal first lumen ends with a reversing bend located therebetween, the first lumen providing fluid communication between the proximal catheter end and the intermediate catheter outlet;

the reversing bend being located longitudinally between the intermediate catheter outlet and the distal catheter end, the reversing bend directing fluid flow to turn approximately 180°

as the fluid flows through the first lumen.

2. The catheter of claim 1, including a second lumen located within the catheter body and fluidly isolated from the first lumen, the second lumen providing fluid communication between the proximal and distal catheter ends.

3. The catheter of claim 1, including a third lumen located within the catheter body and fluidly isolated from the first and second lumens, the third lumen providing fluid communication between the proximal and distal catheter ends.

4. The catheter of claim 1, including an oximetric microcatheter adapted for:

selective insertion into the proximal first lumen end, selective extension through the first lumen, and selective protrusion from the distal first lumen end in a cephalad direction.

8. The catheter of claim 1, wherein the reversing bend is located longitudinally between, and spaced apart from both of, the intermediate catheter outlet and the distal catheter end.

9. The catheter of claim 4, wherein, when the oximetric microcatheter is extending through the first lumen, a first portion of the oximetric microcatheter extends in a cephalad direction within the first lumen while a second portion of the oximetric microcatheter extends in a caudad direction through the first lumen, substantially parallel to the first portion of the oximetric microcatheter.

12. The catheter of claim 1, wherein the reversing bend directs fluid flow to turn at an angle in the range of 170°

to 190°

as the fluid flows through the first lumen.

14. The catheter of claim 1, wherein the reversing bend directs fluid flow to turn at an angle of at least 135°

as the fluid flows through the first lumen.

5. A method of accessing jugular blood of a patient, the method comprising the steps of:

providing a catheter having a catheter body having a longitudinal axis and longitudinally spaced proximal and distal catheter ends with an intermediate catheter portion defined therebetween, an intermediate catheter outlet in the catheter body, located in the intermediate catheter portion, and spaced longitudinally from the proximal and distal catheter ends, and a first lumen defined within the catheter body and having longitudinally spaced proximal and distal first lumen ends with a reversing bend located therebetween, the first lumen providing fluid communication between the proximal catheter end and the intermediate catheter outlet, and the reversing bend being located longitudinally between the intermediate catheter outlet and the distal catheter end, the reversing bend directing fluid flow to turn approximately 180°

as the fluid flows through the first lumen;

inserting the distal catheter end into a jugular vein of a patient in a caudad direction;

positioning the intermediate catheter portion of the catheter within the jugular vein;

maintaining the catheter within the jugular vein;

providing a microcatheter having longitudinally spaced proximal and distal microcatheter ends with a microcatheter body located therebetween;

inserting the distal microcatheter end into the proximal first lumen end;

extending the microcatheter body through at least a portion of the first lumen; and

extending the distal microcatheter end through the intermediate catheter outlet and away from the first lumen in a cephalad direction.

6. The method of claim 5, wherein the microcatheter is an oximetric microcatheter.

7. The method of claim 5, including the step of extending the distal microcatheter end into a jugular bulb of the patient.

10. The method of claim 5, wherein the reversing bend is located longitudinally between, and spaced apart from both of, the intermediate catheter outlet and the distal catheter end.

11. The method of claim 5, wherein the step of extending the microcatheter body through at least a portion of the first lumen includes the steps of:

extending a first portion of the microcatheter body in a cephalad direction within the first lumen; and

extending a second portion of the microcatheter body in a caudad direction through the first lumen, substantially parallel to the first portion of the microcatheter body.

13. The method of claim 5, wherein the reversing bend directs fluid flow to turn at an angle in the range of 170°

to 190°

as the fluid flows through the first lumen.

15. The method of claim 5, wherein the reversing bend directs fluid flow to turn at an angle of at least 135°

as the fluid flows through the first lumen.