MULTI-LUMEN CENTRAL ACCESS VENA CAVA FILTER APPARATUS AND METHOD OF USING SAME

• US 20090062840A1
• Filed: 08/31/2007
• Published: 03/05/2009
• Est. Priority Date: 08/31/2007
• Status: Active Grant

• Current Assignee: Mermaid Medical Vascular ApS
• Original Assignee: Artificial Airways, Inc.
• Inventors: Angel, Luis F.
• Granted Patent: US 8,668,712 B2
• Time in Patent Office: Days
• US Class Current: 606/200
• CPC Class Codes: A61F 2002/016 made from wire-like elements
• CPC Class Codes: A61F 2230/008 paraboloidal
• CPC Class Codes: A61F 2230/0093 Umbrella-shaped, e.g. mushroom-shaped
• CPC Class Codes: A61M 2025/0002 with a pressure sensor at the distal end
• CPC Class Codes: A61M 2025/0003 having an additional lumen transmitting fluid pressure to the outside for measurement
• CPC Class Codes: A61M 2025/0036 with more than four lumina
• CPC Class Codes: A61M 2025/004 characterized by lumina being arranged circumferentially
• CPC Class Codes: A61M 2205/3523 using telemetric means
• 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

Abstract

A combined multi-lumen central access catheter and an embolic filter including ports proximal and distal the filter for fluid infusion and/or pressure sensing and infusion ports in the catheter to permit infusion of bioactive agents, flushing agents and/or contrast agents. The embolic filter may be removably coupled to the multi-lumen catheter for temporary placement and retrieval under recommended indications.

Claims

1. A medical device, comprising:

a. a multi-lumen catheter body having a first port associated with a first lumen and a second port associated with a second lumen; and

b. a filter member coupled to the multi-lumen catheter body and positioned intermediate the first port and the second port such that the first port is proximal the filter member and the second port is distal the filter member.

2. The medical device according to claim 1, further comprising a pressure transducer operably associated with the first port and the second port, wherein the pressure transducer is capable of detecting a pressure differential between the first port and the second port and across the filter member.

3. The medical device according to claim 1, further comprising a sensor operably associated with at least one of the first and the second ports, wherein the sensor detects a condition within a patient'"'"'s body proximate the medical device.

4. The medical device according to claim 1, further comprising a flow sensor operably associated with at least one of the first and second ports, wherein the flow sensor detects fluid flow velocities as the medical device is passed through an anatomical passageway.

5. The medical device according to claim 1, further comprising at least one infusion port associated with at least one infusion lumen in the multi-lumen catheter body and positioned within an area of the multi-lumen catheter body bounded by the filter member.

6. The medical device according to claim 5, wherein the at least one infusion port further comprises a plurality of infusion ports arrayed along a longitudinal axis and a circumferential axis of the multi-lumen catheter body and within the area bounded by the filter member.

7. The medical device according to claim 1, wherein the filter member further comprises a proximal portion that is immovably fixed to the multi-lumen catheter body and a distal portion that is movably coupled to the multi-lumen catheter body.

8. The medical device according to claim 7, wherein the filter member further comprises a plurality of structural members configured to form a plurality of proximal interstitial openings and distal interstitial openings, the proximal interstitial openings being larger in open surface area than the distal interstitial openings.

9. The medical device according to claim 8, wherein the plurality of structural members further comprise a first set of structural members affixed at a proximal end to the proximal portion of the filter member, a second set of structural members affixed at a distal end thereof to the distal portion of the filter member, and a hoop portion coupling a distal end of the first set of structural members to a proximal portion of the second set of structural members.

10. The medical device according to claim 9, wherein the hoop portion further comprises a generally sinusoidal-shaped member having a plurality of peaks and valleys.

11. The medical device according to claim 10, wherein each one of the plurality of structural members is connected to one of the plurality of peaks and valleys of the generally sinusoidal-shaped member.

12. The medical device according to claim 11, wherein at least one of the plurality of peaks and valleys of the generally sinusoidal shaped member further comprises a generally U-shaped hinge member and one of the plurality of structural members is coupled to an apex of the generally U-shaped hinge member.

13. The medical device according to claim 1, wherein the filter member is self-centering within a blood vessel lumen.

14. The medical device according to claim 2, further comprising a wireless transmitter operably associated with the pressure transducers and a wireless receiver remote from a patient'"'"'s body to wirelessly receive data from the pressure transducers.

15. The medical device according to claim 4, further comprising a wireless transmitter operably associated with the flow sensors and a wireless receiver remote from a patient'"'"'s body to wirelessly receive data from the flow sensors.

16. The medical device according to claim 1, further comprising a detachment mechanism cooperating between the filter member and the multi-lumen catheter body to provide for filter member detachment from the multi-lumen catheter body and allow for temporary placement of the filter member within a patient'"'"'s body without the multi-lumen catheter body remaining in the patient'"'"'s body.

17. The medical device according to claim 1, further comprising an introducer sheath through which the multi-lumen catheter body and the filter member are introduced and delivered to a situs with a patient'"'"'s body.

18. The medical device according to claim 16, further comprising at least one radio-opaque marker proximate a distal end of the introducer sheath and at least one radio-opaque marker proximate a distal end of the multi-lumen catheter body.

19. The medical device according to claim 1, further comprising a central guidewire lumen passing longitudinally along a central longitudinal axis of the multi-lumen catheter body.

20. A method capturing thrombus within a blood vessel, comprising the steps of:

a. introducing a multi-lumen catheter having a filter member coupled thereto;

b. deploying the multi-lumen catheter within a blood vessel;

c. infusing a fluid through at least one lumen in the multi-lumen catheter in communication with at least one infusion port passing through the multi-lumen catheter and open to an inner spatial area bounded by the filter member.

21. The method according to claim 20, further comprising the step of detaching the filter member from the multi-lumen catheter and withdrawing the multi-lumen catheter from the blood vessel.

22. The method according to claim 21, further comprising the steps of introducing a multi-lumen catheter body, connecting the multi-lumen catheter body to the filter member, infusing a fluid through at least one of a third lumen to lyse thrombus captured within the filter member, and withdrawing the connected filter member and multi-lumen catheter from the blood vessel.

23. The method according to claim 20, wherein step (a) further comprises the step of sensing fluid flow velocities within the blood vessel while introducing the multi-lumen catheter within the blood vessel.

24. The method according to claim 20, further comprising the step of sensing a pressure differential across the filter member through a proximal port in the multi-lumen catheter proximal the filter that communicates with a first lumen in the multi-lumen catheter and through a distal port in the multi-lumen catheter distal the filter that communicates with a second lumen in the multi-lumen catheter, said pressure differential being indicative of the extent of thrombus capture within the filter member.

25. The method according to claim 24, further comprising the step of infusing a thrombolytic fluid through the at least one lumen in the multi-lumen catheter that communicates with the at least one infusion port.

26. The method according to claim 25, wherein the step of infusing a thrombolytic fluid further comprises the step of infusing a thrombolytic agent.

27. The method according to claim 25, wherein the step of infusing a thrombolytic fluid further comprises the step of infusing a pressurized fluid to mechanically thrombolyse thrombus captured in the filter member.