Dual needle delivery system

• US 20060253088A1
• Filed: 04/22/2005
• Published: 11/09/2006
• Est. Priority Date: 04/22/2005
• Status: Active Grant

• Current Assignee: Guidant Corporation (Boston Scientific Corporation)
• Original Assignee: Guidant Corporation (Boston Scientific Corporation)
• Inventors: Chow, Mina, Michal, Eugene, Ambat, Dwight A., Cheng, Jin
• Granted Patent: US 9,149,602 B2
• Time in Patent Office: Days
• US Class Current: 604/284
• CPC Class Codes: A61M 2025/0034 characterized by elements which are assembled, connected or fused, e.g. splittable tubes, outer sheaths creating lumina or separate cores
• CPC Class Codes: A61M 2025/0037 characterized by lumina being arranged side-by-side
• CPC Class Codes: A61M 25/003 characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves catheter tips A61M25/0067
• CPC Class Codes: A61M 25/0071 Multiple separate lumens multiple separate lumens throughout the catheter A61M25/0026
• CPC Class Codes: A61M 25/06 Body-piercing guide needles or the like

Abstract

An apparatus for delivering devices. The apparatus comprises a catheter with an elongated shaft having a first lumen and a second lumen extending therethrough. The apparatus further comprises a distal section with a lumen in communication with a port in a distal end of the catheter and with the first lumen and the second lumen. The first lumen is configured for a first device and the second lumen is configured for a second device to be disposed therein. The apparatus further comprises a proximal adapter coupled to the elongated shaft with a first port in communication with the first lumen and a second port in communication with the second lumen.

Claims

1. An apparatus comprising:

a catheter body having a first lumen and a second lumen extending therethrough, the first lumen configured for a first device and the second lumen configured for a second device to be disposed therein;

a control handle coupled to the catheter body, the control handle including a first control mechanism configured to control the first device and a second control mechanism configured to control the second device; and

a delivery path provided in a distal portion of the catheter body, the delivery path configured to enable separate introduction of the first device and the second device at a distal tip of the catheter body.

2. The apparatus of claim 1 wherein the first lumen and the second lumen are two separate lumens running parallel to one another through the catheter body and wherein the first lumen and the second lumen fuse at one section of the catheter body to form the delivery path.

3. The apparatus of claim 1 wherein the catheter body has a Y-like shape wherein the first lumen and the second lumen are placed into two separate tracks and converge into the delivery path at the distal portion of the catheter body.

4. The apparatus of claim 1 wherein the first control mechanism is configured to independently actuate the first device and wherein the second control mechanism is configured to independently actuate the second device.

5. The apparatus of claim 1 wherein the delivery path is configured such that only one of the first device or the second device is actuated at a time, or is configured such that the delivery path inner dimension is smaller than an outer dimension of the first device and the second device combined, or is configured such that the delivery path is too small to accommodate both the first device and the second device at one time.

6. The apparatus of claim 1 wherein the first lumen and the second lumen converge into the delivery path at the distal section of the catheter body such that only one of the first device or the second device is actuated at a time from the delivery path.

7. The apparatus of claim 1 wherein the first device and the second device is each a needle.

8. The apparatus of claim 1 wherein the first lumen and the second lumen are configured to allow each of the first device and the second device to rotate therein and extend therefrom.

9. The apparatus of claim 8 wherein the first lumen and the second lumen fuse at least at one portion to form the delivery path.

10. The apparatus of claim 9 wherein the delivery path has a cross sectional shape like a numeral Eight (8).

11. An apparatus comprising:

a catheter body having a proximal section, a distal section, and at least a first lumen and a second lumen extending therethrough, the first lumen configured for a first device and the second lumen configured for a second device to be disposed therein, the first lumen and the second lumen being placed side-by-side to one another, wherein there is no separating wall therebetween the first lumen and the second lumen at the distal section of the catheter body; and

a control handle coupled to the catheter body, the control handle including a first control mechanism configured to control the first device and a second control mechanism configured to control the second device.

12. The apparatus of claim 11 wherein the first lumen and the second lumen form two separate lumens running parallel to one another through the catheter body and fuse to form one delivery path at the distal section of the catheter body, the delivery path has a cross section with 8-like shape.

13. The apparatus of claim 11 wherein the catheter body has a Y-like shape wherein the first lumen and the second lumen are placed into two separate tracks in a proximal section of the catheter body and the first lumen and the second lumen converge into a lumen at the distal section.

14. The apparatus of claim 11 wherein the first control mechanism is configured to independently rotate the first device and wherein the second control mechanism is configured to independently rotate the second device.

15. The apparatus of claim 11 wherein each of the first device and the second device is a needle having a beveled tip and a distal opening at the beveled tip.

16. The apparatus of claim 15 wherein the first device and the second device are positioned to have sides pressed against each other such that beveled tips form one sharp point during an initial delivery state.

17. A method comprising:

advancing a catheter body having a first needle and a second needle to a treatment site, the catheter body having a proximal section, a distal section, and at least a first lumen and a second lumen extending therethrough, wherein the first needle is inserted within the first lumen, the second needle is inserted within the second lumen; and

at the treatment site, sequentially extending the first needle and the second needle from a distal tip of the catheter body, wherein only one of the first needle or the second needle is extended at a time, wherein coupling to the catheter body is a control handle including a first control mechanism configured to actuate the first needle and a second control mechanism configured to actuate the second needle, and wherein included at a distal section of the catheter body is a delivery path configured to enable separate introduction of the first needle and the second needle one at a time.

18. The method of claim 17 wherein the first needle and the second needle exit at a distal port of the catheter body in said sequential extending.

19. The method of claim 18 wherein the first needle and the second needle deliver agents to the same treatment site.

20. The method of claim 19 further comprising:

filling the first needle with a first agent; and

filling the second needle with a second agent.

21. The method of claim 20 further comprising:

injecting the first agent at the treatment site; and

sequentially injecting the second agent at the treatment site after the first agent is injected.

22. A method comprising:

advancing a catheter having a first needle and a second needle to a treatment site;

wherein the first needle and the second needle both extended out at a distal end of the catheter and the first needle and the second needle together forming a sharp point at the distal end; and

rotating at least the first needle to orient a distal port of the first needle relative to a distal port of the second needle.

23. The method of claim 22 further comprising:

rotating the second needle to orient a distal port of the second needle relative to the distal port of the first needle.

24. The method of claim 22 wherein the catheter including a catheter body which houses the first needle and the second needle, the catheter body having a proximal section, a distal section, and at least a first lumen and a second lumen extending therethrough, wherein the first needle is inserted within the first lumen, the second needle is inserted within the second lumen, and positioning the first needle and the second needle such that the first needle and the second needle together form the sharp point at the distal section, and wherein the first lumen and the second lumen are fused together to form one delivery path at the distal section.

25. The method of claim 24 further comprising:

causing a puncture at the treatment site; and

at the treatment site, delivering the first needle and the second needle from a distal tip of the catheter body.

26. The method of claim 24 wherein the first needle or the second needle is delivered either sequentially with only one of the first needle or the second needle is delivered at a time, or simultaneously with the first needle or the second needle delivered at a time, wherein coupling to the catheter body is a control handle including a first control mechanism configured to independently control the first needle and a second control mechanism configured to independently control the second needle.

27. The method of claim 26 wherein the first needle and the second needle exit at a distal port of the catheter body.

28. The method of claim 26 wherein the first needle and the second needle deliver agents to the same treatment site.

29. The method of claim 28 further comprising:

filling the first needle with a first agent; and

filling the second needle with a second agent.

30. The method of claim 29 further comprising:

injecting the first agent at the treatment site; and

sequentially injecting the second agent at the treatment site after the first agent is injected.

31. The method of claim 30 further comprising:

prior to delivering, having a distal opening of the first needle and a distal opening of the second needle facing away from a center line between the first needle and the second needle;

while the second needle is stationary, rotating the first needle to have the distal opening of the first needle facing the center line;

injecting the first agent at the treatment site;

after the first agent is injected, rotating the first needle to have the distal opening of the first needle facing away from the center line;

while the first needle is stationary, rotating the second needle to have the distal opening of the second needle facing the center line;

injecting the second agent at the treatment site; and

after the second agent is injected, rotating the second needle to have the distal opening of the second needle facing away from the center line.

32. The method of claim 30 further comprising:

prior to delivering, having a distal opening of the first needle and a distal opening of the second needle facing away from a center line between the first needle and the second needle;

while the second needle is stationary, rotating the first needle to have the distal opening of the first needle facing the center line;

injecting the first agent at the treatment site;

after the first agent is injected and while the first needle is stationary, rotating the second needle to have the distal opening of the second needle facing the center line; and

injecting the second agent at the treatment site.

33. The method of claim 30 further comprising:

prior to delivering, having a distal opening of the first needle and a distal opening of the second needle facing away from a center line between the first needle and the second needle;

rotating the first needle and the second needle to have the distal opening of the first needle and the second needle facing the center line; and

simultaneously injecting the first agent and the second agent at the treatment site.

34. The method of claim 30 further comprising:

prior to delivering, having a distal opening of the first needle and a distal opening of the second needle facing away from a center line between the first needle and the second needle;

positioning the first needle and the second needle to have the distal opening of the first needle and the second needle facing the same direction; and

simultaneously injecting the first agent and the second agent at the treatment site.

35. The method of claim 30 further comprising:

prior to delivering, having a distal opening of the first needle and a distal opening of the second needle facing away from a center line between the first needle and the second needle;

rotating the first needle to have the distal opening of the first needle facing an injecting point;

rotating the second needle to have the distal opening of the second needle facing the injecting point;

injecting the first agent and the second at the treatment site.

37. The apparatus of claim 26 wherein each distal opening of the first needle and the second needle form a beveled tip with two openings.

38. The apparatus of claim 26 wherein the distal opening the first needle and the distal opening of the second needle face each other.

39. The apparatus of claim 26 wherein the first adapter and the second adapter form parts of a multi-armed handle coupled to a proximal portion of the catheter body.

40. The apparatus of claim 26 further comprising said first needle and said second needle.

36. An apparatus comprising:

a catheter body having a lumen extending therethrough, the lumen configured for a first needle and a second needle bonded together to be disposed therein, each of the first needle and the second needle having a distal opening and a lumen extending therethrough;

a first adaptor and a second adaptor coupled to the catheter body, the first adaptor configured to dispense a first agent from the first needle and the second adaptor configured to dispense a second agent from the second needle; and

wherein the first agent and the second agent are dispensable at the distal openings simultaneously at one treatment site.

41. A method comprising:

advancing a catheter body having a first needle and a second needle bonded together therein to a treatment site, each of the first needle and the second needle having a distal opening and a lumen extending therethrough, the first needle filled with a first agent, and the second needle filled with a second agent;

causing a puncture at the treatment site; and

injecting the first agent and the second agent simultaneously at the treatment site.

42. The method of claim 41 wherein the first needle and the second needle are bonded together with one beveled tip that includes both the distal openings of the first needle and the second needle therein.

43. The apparatus of claim 41 wherein the first needle and the second needle are bonded together with the distal opening the first needle and the distal opening of the second needle facing each other.

44. A catheter apparatus, comprising:

a catheter with an elongated shaft having a first lumen and a second lumen extending therethrough, the first lumen configured for a first device and the second lumen configured for a second device to be disposed therein, and having a distal section with a lumen in communication with a port in a distal end of the catheter and with the first and second lumens; and

a proximal adapter coupled to the elongated shaft with a first port in communication with the first lumen and a second port in communication with the second lumen.

45. The apparatus of claim 44 wherein the elongated catheter shaft has a multifurcated proximal section with at least a first branch defining the first lumen and a second branch defining the second lumen, and the proximal adapter is on a proximal end of the first and second branches.

46. The apparatus of claim 44 wherein the elongated catheter shaft has a distal section having a distal lumen having a figure-8-like shape.

47. The apparatus of claim 44 wherein the distal lumen capable of accommodating a plurality of devices to be disposed therein.

48. The apparatus of claim 44 wherein the distal lumen is configured to only able to accommodate only one of the first device or the second device to be extended therethrough at a time.

49. The apparatus of claim 44 wherein the first port and the second port are only in communication to the respective first lumen and second lumen.

50. The apparatus of claim 44 wherein the first device and the second device are configured to inject agents capable of forming a gel matrix at a treatment site.

51. A catheter apparatus, comprising:

a catheter with an elongated shaft having a lumen extending therethrough, the lumen to accommodate a first device and the second device to be disposed therein, wherein a distal section of the lumen is narrower than a proximal section of the lumen to accommodate the first device and the second device such that there is substantially no gap between the first device and the second device at the distal section of the catheter; and

a proximal adapter coupled to the elongated shaft with a first port to be in communication with the first device and a second port in communication with the second device.

52. The apparatus of claim 51 wherein the lumen is an oval-shape lumen.

53. The apparatus of claim 51 further comprising the first device and the second device disposed in said lumen.

54. The apparatus of claim 51 wherein the elongated catheter shaft has a multifurcated proximal section with at least a first branch defining the first lumen and a second branch defining the second lumen, and the proximal adapter is on a proximal end of the first and second branches.

55. The apparatus of claim 51 wherein the elongated shaft has a distal section having a distal lumen having a figure-8-like shape.

56. The apparatus of claim 51 wherein a distal section of the elongated shaft is formed by tubes fusing together such that there is no separating wall between the two tubes.

57. The apparatus of claim 51 wherein the distal lumen capable of accommodating a plurality of devices to be disposed therein.

58. The apparatus of claim 51 wherein the distal lumen is configured to only able to accommodate only one of the first device or the second device to be extended therethrough at a time.

59. The apparatus of claim 51 wherein the first port and the second port are only in communication to the respective first lumen and second lumen.

60. The apparatus of claim 51 wherein the first device and the second device are configured to inject agents capable of forming a gel matrix at a treatment site.