Orthogonal arterial catheter

• US 20030199850A1
• Filed: 05/22/2003
• Published: 10/23/2003
• Est. Priority Date: 02/14/2000
• Status: Active Grant

• Current Assignee: United States Department of the Army (Government of the United States of America)
• Original Assignee: United States Department of the Army (Government of the United States of America)
• Inventors: Chavez, Saturnino, Shepherd, John M., Walker, Steven C.
• Granted Patent: US 6,981,969 B2
• Time in Patent Office: Days
• US Class Current: 604/523
• CPC Class Codes: A61M 2025/0246 fixed on the skin having a cover for covering the holding means
• CPC Class Codes: A61M 2025/028 having a mainly rigid support structure
• CPC Class Codes: A61M 25/0097 characterised by the hub connectors A61M39/10
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body

Abstract

An orthogonal arterial catheter preferably includes a hub and a cannula. The hub preferably protects the cannula from potential kinking and shearing forces because the cannula upon exiting a patient'"'"'s body enters the hub. The hub preferably provides a passageway through which the hose travels to a connector piece. The connector piece preferably attaches the device to a fluid line such as an arterial line transducer. In addition, the hub preferably includes a port that provides a channel through which a guide wire or a needle may gain access to the cannula. The hub also may include appendages extending from it to suture to the patient.

Claims

1. A catheter device for use on a patient, said device comprising:

a hub having

a bottom surface,

at least one side surface,

a port, and

a passageway passing therethrough said hub, the passageway travels from an opening in the bottom surface of said hub to an opening in the at least one side surface of said hub, the passageway connecting with said port,

a hose in communication with the passageway, and

a connector in communication with said hose and the passageway; and

wherein the bottom surface of said hub is formed to rest against the body of the patient without wobbling.

2. The device according to claim 1, wherein an axis of the passageway at said bottom surface is transverse to an axis of the passageway at said side surface.

3. The device according to claim 1, wherein said hub includes

a top molded section that fits around the hose and includes said port, and

a bottom molded section that fits around the hose;

and

wherein said top molded section connects to said bottom molded section such that said bottom surface is formed by the connected sections, and

the passageway is formed when said top molded section is connected to said bottom molded section.

4. The device according to claim 1, wherein said connector includes a fitting in communication with said hose.

5. The device according to claim 1, wherein

said connector includes a fitting to engage said hose, and

said hub is integrally formed with said connector.

6. The device according to claim 5, wherein said hose lines the passageway of said hub from a bottom surface to said fitting.

7. The device according to claim 1, wherein

said hose includes said connector, and

said hose lines the passageway of said hub.

8. The device according to claim 1, further comprising a cover engaging the port of said hub.

9. The device according to claim 1, wherein said hub further includes a sealing mechanism installed in the port to seal off the port from the passageway.

10. The device according to claim 9, wherein said sealing mechanism includes a resilient material having a hole therethrough, the port being closed by the resilience of the sealing mechanism.

11. The device according to claim 1, wherein

the connector connects to a fluid line, and

the connector is selected from a group consisting of a luer-lock connector, a bayonet connection, a hose barb connection, and a threaded connection.

12. The device according to claim 1, wherein said hub includes means for being attached to a patient.

13. The device according to claim 1, wherein said hub includes a plurality of grooves running laterally across said hub.

14. The device according to claim 1, further comprising a fitting in the passageway of said hub and in communication with said hose, said fitting spaced from said connector.

15. The device according to claim 1, wherein the passageway travels in a plane perpendicular to said bottom surface.

16. A method for using the device of claim 1, comprising:

connecting the hose and the hub together,

inserting a needle through the port into the hose,

guiding the hose into a selected blood vessel of a patient using the needle such that the entire bottom surface is against the skin of the patient and the hub stably rests on the patient,

withdrawing the needle,

connecting a fluid line to the connector, and

monitoring the patient'"'"'s blood pressure.

17. The method according to claim 16, wherein the selected blood vessel is the femoral artery.

18. A method for obtaining a blood sample using the device according to claim after the device has been installed, the method comprising:

inserting a syringe through the port into the passageway,

withdrawing an amount of blood from the passageway, and

removing the syringe.

19. A device for monitoring blood pressure of a patient in real-time comprising:

means for diverting blood from the patient,

means for preventing blood flow into said diverting means, said preventing means including

means for accessing said diverting means,

means for changing an orientation of flow through said diverting means, said changing means in communication with said accessing means.

20. A device comprising:

a hub having a passageway passing therethrough, wherein the passageway includes;

a vertical portion,

a first arcuate portion,

a second arcuate portion, and

a horizontal portion; and

wherein the vertical portion, the first arcuate portion, the second arcuate portion, and the horizontal portion form a path that provides for minimal turbulence in the flow of blood,

a hose in communication with the passageway,

a connector in communication with said hose and the passageway; and

wherein the passageway travels from an opening in a bottom surface of said hub to an opening in a side surface of said hub.

21. An orthogonal arterial catheter comprising:

a hub having a bottom surface and at least one side surface, said hub including a passageway running from said bottom surface to said at least one side surface in a plane perpendicular to said bottom surface, the passageway having a plurality of arcuate sections,

a hose in communication with said hub, and

a connector in communication with said hose and said hub; and

wherein the surface area of said bottom surface is greater than the surface area of said at least one side surface to which the passageway travels, and said bottom surface is able to rest against the patient and provide stability to the hub.

22. A catheter device for use on a patient, said device comprising:

a hub having

a bottom surface,

at least one side surface, and

a passageway passing therethrough, the passageway travels from an opening in the bottom surface of said hub to an opening in said at least one side surface of said hub in a plane perpendicular to said bottom surface,

a hose in communication with the passageway, and

a connector in communication with the passageway; and

wherein the bottom surface of said hub is formed to rest against the body of the patient without wobbling.

23. The device according to claim 22, further comprising a fitting attached to the inside of the passageway passing through said hub, said fitting is in communication with said hose, and said fitting is spaced from said connector.