Integrated infusion and aspiration system and method

• US 20040030281A1
• Filed: 08/12/2002
• Published: 02/12/2004
• Est. Priority Date: 08/12/2002
• Status: Active Grant

• Current Assignee: LMA North America Incorporated (Teleflex Incorporated)
• Original Assignee: Breg Incorporated (Breg Acquisition Corp.)
• Inventors: Mason, Jeffrey T., Howard, Mark E., Fallin, T. Wade, Goble, E. Marlowe
• Granted Patent: US 6,893,414 B2
• Time in Patent Office: Days
• US Class Current: 604/28
• CPC Class Codes: A61M 1/743 by changing the cross-section of the line, e.g. flow regulating valves A61M1/7413 takes precedence
• CPC Class Codes: A61M 1/75 Intermittent or pulsating suction A61M1/63, A61M1/772 take precedence
• CPC Class Codes: A61M 1/85 with gas or fluid supply means, e.g. for supplying rinsing fluids or anticoagulants for negative pressure wound therapy A61M1/92, A61M1/94; combined with tracheal tubes A61M16/0463; dental instruments with combined rinsing and aspirating A61C17/0208
• CPC Class Codes: A61M 1/92 with liquid supply means
• CPC Class Codes: A61M 2025/0004 having two or more concentrically arranged tubes for forming a concentric catheter system
• CPC Class Codes: A61M 2025/0037 characterized by lumina being arranged side-by-side
• CPC Class Codes: A61M 2025/0039 characterized by lumina being arranged coaxially
• CPC Class Codes: A61M 2025/018 Catheters having a lateral opening for guiding elongated means lateral to the catheter
• CPC Class Codes: A61M 25/0021 characterised by the form of the tubing A61M25/0054 takes precedence
• CPC Class Codes: A61M 25/007 Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
• CPC Class Codes: A61M 27/00 Drainage appliance for wounds or the like , i.e. wound drains, implanted drains negative pressure wound therapy devices A61M1/90; implements for holding wound open A61B17/02 ; middle ear drainage A61F11/202
• CPC Class Codes: A61P 23/00 Anaesthetics

Abstract

An integrated infusion and aspiration system includes of a flow control system and a catheter assembly. The catheter assembly includes an infusion catheter and an aspiration catheter, each having ports located at the distal end of thereof. The distal ends of the catheters are separated so that the aspiration catheter ports can be positioned on an opposing side of a surgical wound site from the infusion catheter ports. Methods of operation of the integrated infusion and aspiration system provides for uninterrupted aspiration with concurrent controlled delivery of an infusion solution such that the infusion solution is substantially evenly dispersed of over the wound site.

Claims

1. A system for percutaneous infusion and aspiration of an internal wound site, the system comprising:

a catheter assembly comprising;

an aspiration catheter having a proximal section and an opposing distal section, the aspiration catheter bounding a first lumen extending along the length thereof, at least one port being formed on the distal section of the aspiration catheter so as to communicate with the first lumen; and

an infusion catheter having a proximal section and an opposing distal section, the infusion catheter bounding a second lumen extending along the length thereof, at least one port being formed on the distal section of the infusion catheter so as to communicate with the second lumen, at least a portion of the aspiration catheter or infusion catheter being disposed within the lumen of the other of the aspiration catheter or infusion catheter, the at least one port of the aspiration catheter being spaced apart from the at least one port of the infusion catheter so that the at least one ports can be placed on opposing sides of the internal wound

a medication reservoir in fluid communication with the proximal section of the infusion catheter;

a first pump adapted to transfer fluid from the medication reservoir to the infusion catheter;

an aspiration reservoir in fluid communication with the proximal section of the aspiration catheter; and

a second pump adapted to draw fluid from the aspiration catheter to the aspiration reservoir.

2. The system of claim 1 wherein the aspiration catheter comprises a distal end tip, the at least one port being formed on the distal end tip or proximal thereof.

3. The system of claim 1 further comprising a plurality of spaced apart ports formed on the corresponding distal sections of the infusion catheter and the aspiration catheter.

4. The system of claim 3 wherein the plurality of ports of the infusion catheter and the aspiration catheter each have a predetermined number and a predetermined spacing, the number and spacing of the plurality of ports on the infusion catheter being substantially the same as the number and spacing of plurality of ports on the aspiration catheter.

5. The system of claim 1 wherein the infusion catheter and the aspiration catheter are discrete members.

6. The system of claim 1 wherein at least a portion of the infusion catheter and the aspiration catheter are integrally formed as a one piece member.

7. The system of claim 1 wherein at least a portion of the infusion catheter is disposed within the first lumen of the aspiration catheter, the infusion catheter also either projecting out of the first lumen through a distal end tip of the aspiration catheter or through the aspiration catheter at a location proximal of the distal end tip.

8. The system of claim 1 wherein at least a portion of the aspiration catheter is disposed within the second lumen of the infusion catheter, the aspiration catheter also either projecting out of the second lumen through a distal end tip of the infusion catheter or through the infusion catheter at a location proximal of the distal end tip.

9. The system of claim 1 further comprising an infusion solution stored in the medication reservoir such that selectively activating the pumps causes the infusion solution to flow from the infusion catheter port to the aspiration catheter port such that the infusion solution is substantially evenly dispersed of over the wound site.

10. The system of claim 1 further comprising a first flow control apparatus disposed on the proximal section of the infusion catheter or between the medication reservoir and the proximal section of the infusion catheter.

11. The system of claim 1 further comprising a second flow control apparatus disposed on the proximal section of the aspiration catheter or between the aspiration reservoir and the proximal section of the aspiration catheter.

12. The system of claim 1 further comprising at least one power source adapted to activate the first pump and the second pump.

13. The system of claim 1 wherein the at least one port of the infusion catheter is spaced apart from the at least one port of the aspiration catheter by a distance of at least ten times the larger of a maximum outside diameter of the aspiration catheter or the infusion catheter.

24. The system of claim 1 wherein the plurality of ports on the infusion catheter are spaced apart from the plurality of ports on the aspiration catheter by a distance of at least ten time the larger of a maximum outside diameter of the aspiration catheter or the infusion catheter.

14. A system for percutaneous infusion and aspiration of an internal wound site, the system comprising:

a catheter assembly comprising;

an aspiration catheter having a proximal section, a distal section, and a middle section extending therebetween, the aspiration catheter bounding a first lumen extending along the length thereof, a plurality of spaced apart ports extending through the distal section of the aspiration catheter so as to communicate with the first lumen; and

an infusion catheter having a proximal section, a distal section, and a middle section extending therebetween, the infusion catheter bounding a second lumen extending along the length thereof, a plurality of spaced apart ports extending through the distal section of the infusion catheter so as to communicate with the second lumen, at least a portion of the middle section of the aspiration catheter or infusion catheter being disposed within the lumen of or being secured adjacent to the middle section of the other of the aspiration catheter or infusion catheter, at least a portion of the plurality of ports of the aspiration catheter being spaced apart from the plurality of ports of the infusion catheter so that at least a portion of the plurality of ports of the aspiration catheter and infusion catheter can be placed on opposing sides of the internal wound site;

a medication reservoir in fluid communication with the proximal section of the infusion catheter;

a first pump adapted to transfer fluid from the medication reservoir to the infusion catheter;

an aspiration reservoir in fluid communication with the proximal section of the aspiration catheter; and

a second pump adapted to draw fluid from the aspiration catheter to the aspiration reservoir.

15. The system of claim 14 wherein the plurality of ports of the infusion catheter and the aspiration catheter each have a predetermined number and a predetermined spacing, the number and spacing of the plurality of ports on the infusion catheter being substantially the same as the number and spacing of plurality of ports on the aspiration catheter.

16. The system of claim 14 wherein the infusion catheter and the aspiration catheter are discrete members.

17. The system of claim 14 wherein at least a portion of the infusion catheter and the aspiration catheter are integrally formed as a one piece member.

18. The system of claim 14 wherein at least a portion of the infusion catheter is disposed within the first lumen of the aspiration catheter, the infusion catheter also either projecting out of the first lumen through a distal end tip of the aspiration catheter or through the aspiration catheter at a location proximal of the distal end tip.

19. The system of claim 14 wherein at least a portion of the aspiration catheter is disposed within the second lumen of the infusion catheter, the aspiration catheter also either projecting out of the second lumen through a distal end tip of the infusion catheter or through the infusion catheter at a location proximal of the distal end tip.

20. The system of claim 14 further comprising an infusion solution stored in the medication reservoir such that selectively activating the pumps causes the infusion solution to flow from the infusion catheter ports to the aspiration catheter ports such that the infusion solution is substantially evenly dispersed of over the wound site.

21. The system of claim 14 further comprising a first flow control apparatus disposed on the proximal section of the infusion catheter or between the medication reservoir and the proximal section of the infusion catheter.

22. The system of claim 14 further comprising a second flow control apparatus disposed on the proximal section of the aspiration catheter or between the aspiration reservoir and the proximal section of the aspiration catheter.

23. The system of claim 14 further comprising at least one power source adapted to activate the first pump and the second pump.

25. A method for percutaneous infusion and aspiration of an internal wound site, the method comprising:

infusing a wound site with a dose of a solution at a periodic interval;

aspirating the wound site at a first flow rate during the infusion of the solution and for a first time period thereafter; and

aspirating the wound site at a second flow rate after expiration of the first time period but prior to the next infusing of the solution, the second flow rate being greater than the first flow rate.

26. The method of claim 25 wherein the periodic interval between infusions is greater than the sum total of the duration of the infusion and the predetermined time period.

27. The method of claim 25 wherein the aspirating is continuous.

28. The method of claim 25 wherein the solution comprises an analgesic, anesthetic, antibiotic, antiseptic, anticoagulant, anti-inflammatory, or combinations thereof.

29. A method for percutaneous infusion and aspiration of an internal wound site, the method comprising:

infusing the wound site with a dose of a solution;

aspirating the wound site at a first flow rate during the infusion of the solution; and

aspirating the wound site at a second flow rate either immediately upon completion of infusing the solution or at a time period after completion of infusing the solution.

30. The method of claim 29 further comprising repeating at periodic intervals the act of infusing the wound site with a dose of a solution.

31. The method of claim 30 wherein the aspirating is continuous.

32. The method of claim 29 wherein the solution comprises an analgesic, anesthetic, antibiotic, antiseptic, anticoagulant, anti-inflammatory, or combinations thereof.

33. A method for percutaneous infusion and aspiration of an internal wound site, the method comprising:

infusing the wound site with the solution at a substantially constant rate; and

aspiration the wound site at alternating flow rates.

34. A method of claim 33 wherein the aspiration is continuous.

35. The method of claim 33 wherein the solution comprises an analgesic, anesthetic, antibiotic, antiseptic, anticoagulant, anti-inflammatory, or combinations thereof.

36. A method for percutaneous infusion and aspiration of an internal wound site, the method comprising:

passing a catheter assembly through a single incision, the catheter assembly comprising;

an aspiration catheter having at least one port formed thereon; and

an infusion catheter having at least one port formed thereon;

positioning the at least one port of the aspiration catheter on one side of the internal wound site and the at least one port of the infusion catheter on a substantially opposing side of the internal wound site;

periodically infusing the wound site with a dose of a solution through the infusion catheter; and

aspirating the wound site through the aspiration catheter at alternating flow rates.

37. The method as recited in claim 36, wherein the act of passing the catheter comprises at least a portion of the aspiration catheter or infusion catheter being disposed within a lumen of the other of the aspiration catheter or infusion catheter.

38. The method of claim 36 wherein the aspirating is continuous.

39. The method as claim 36 wherein the at least one port of the aspiration catheter and the at least one port of the infusion catheter are each disposed outside of a blood vessel.