Interventional diagnostic catheter and a method for using a catheter to access artificial cardiac shunts

• US 20040210190A1
• Filed: 05/13/2004
• Published: 10/21/2004
• Est. Priority Date: 08/16/2001
• Status: Abandoned Application

• Current Assignee: WILK Patent Development Corporation
• Original Assignee: Percardia, Inc.
• Inventors: Conrad, Timothy R., Mowry, David, Kohler, Robert
• Application Number:
  US10/844,372
• Publication Number:
  US 20040210190A1
• Time in Patent Office: Days
• US Class Current: 604/93.01
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 6/481 involving the use of contrast agents
• CPC Class Codes: A61B 6/504 for diagnosis of blood vessels, e.g. by angiography
• CPC Class Codes: A61B 6/507 for determination of haemodynamic parameters, e.g. perfusion CT
• CPC Class Codes: A61M 2025/0004 having two or more concentrically arranged tubes for forming a concentric catheter system
• CPC Class Codes: A61M 25/0041 pre-formed, e.g. specially adapted to fit with the anatomy of body channels urethral catheters A61F2/04
• CPC Class Codes: A61M 25/0054 with regions for increasing flexibility
• CPC Class Codes: A61M 25/0069 Tip not integral with tube
• CPC Class Codes: A61M 25/0119 Eversible catheters
• CPC Class Codes: A61M 25/0136 Handles therefor

Abstract

One aspect of the present invention relates to a method for passing a fluid through a shunt located in the wall of a heart, the shunt providing fluid communication between a heart chamber and a coronary artery, with a hollow catheter. Another aspect of the present invention relates to a method of inserting a wire through a shunt located in the wall of a heart with a hollow catheter. A further aspect of the present invention relates to passing fluid through a shunt located in the wall of a heart, the shunt providing fluid communication between a heart chamber and a coronary artery, by injecting fluid into the heart chamber. A further aspect of the present invention relates to a catheter with a flexible, hollow, inner member to which a self expanding basket is attached. A further aspect of the present invention relates to a method of passing a radio-opaque contrast fluid through a shunt located in a heart wall, the shunt providing fluid communication between a heart chamber and a coronary artery. A further aspect of the present invention relates to inserting a wire into a coronary artery through a shunt located in a heart wall, the shunt providing fluid communication between a heart chamber and the coronary artery. A still further aspect of the present invention relates to a catheter including an inner tube with a self-expanding basket and an outer sheath about the inner tube. A further aspect of the present invention relates to a catheter with a flexible inner member with a shunt locating element at a distal end and an outer sheath about the inner member.

Claims

1-42. -42. (Cancelled).

43. A method for treating a heart, comprising:

inserting a catheter into the heart;

placing the catheter in flow communication with a device previously implanted in a heart wall; and

performing at least one of a diagnostic operation and a therapeutic operation on the heart via the flow communication.

44. The method of claim 43, wherein the catheter is inserted into a heart chamber.

45. The method of claim 44, wherein the heart chamber is the left ventricle.

46. The method of claim 44, wherein the catheter is inserted into the heart chamber via a heart valve.

47. The method of claim 44, wherein the catheter is configured to allow a distal end of the catheter to be directed to a desired portion of the heart chamber.

48. The method of claim 43, wherein the catheter includes at least one curve to assist in placing the catheter in flow communication with the device.

49. The method of claim 48, wherein the at least one curve is preformed.

50. The method of claim 48, wherein the at least one curve includes two curves.

51. The method of claim 48, wherein the at least one curve corresponds to an anatomic shape of a heart chamber.

52. The method of claim 43, wherein the catheter includes an inner tube and an outer sheath disposed around the inner tube and movable relative to the inner tube.

53. The method of claim 43, wherein the catheter includes an expandable distal member.

54. The method of claim 53, wherein the placing step includes contracting the expandable member to capture an end of the device.

55. The method of claim 53, wherein the placing step includes expanding the expandable distal member, positioning the expanded distal member around an end of the device, and contracting the expandable distal member to capture the end of the device.

56. The method of claim 53, wherein the expandable distal member is inserted into the heart in a contracted configuration.

57. The method of claim 43, wherein the catheter includes a distal member that tapers from a distal end to a proximal end.

58. The method of claim 43, wherein the placing step includes capturing an end of the device.

59. The method of claim 43, wherein the placing step includes collapsing a distal member of the catheter around an end of the device.

60. The method of claim 59, wherein the end of the device extends into a heart chamber.

61. The method of claim 43, wherein the placing step includes placing a distal end of the catheter adjacent to an end of the device.

62. The method of claim 43, wherein an end of the device extends into a heart chamber.

63. The method of claim 43, wherein the device extends through the heart wall.

64. The method of claim 43, wherein the at least one of the diagnostic operation and the therapeutic operation includes providing a radio-opaque fluid.

65. The method of claim 43, wherein the at least one of the diagnostic operation and the therapeutic operation includes providing a guidewire.

66. The method of claim 43, wherein the at least one of the diagnostic operation and the therapeutic operation includes inserting a stent.

67. The method of claim 43, wherein the at least one of the diagnostic operation and the therapeutic operation includes performing an angioplasty procedure.

68. The method of claim 43, wherein the at least one of the diagnostic operation and the therapeutic operation includes performing an atherectomy procedure.

69. The method of claim 43, wherein the at least one of a diagnostic operation and a therapeutic operation includes performing a pyroplasty procedure.

70. The method of claim 43, wherein the at least one of a diagnostic operation and a therapeutic operation includes imaging.