Source: http://www.google.com/patents/US7146226?dq=7,249,099
Timestamp: 2015-03-01 05:04:26
Document Index: 337738363

Matched Legal Cases: ['art.\n2', 'art.\n5', 'art.\n11', 'art.\n13', 'art.\n14', 'art.\n15', 'art.\n16', 'art.\n17', 'art.\n20', 'art.\n23', 'art.\n24', 'art.\n27', 'art.\n35', 'art.\n36', 'art.\n37', 'art.\n40', 'art.\n47']

Patent US7146226 - Cardiac harness for treating congestive heart failure and for defibrillating ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA system for treating the heart includes a cardiac harness associated with a cardiac rhythm management devise which includes at least electrodes and a power source. The cardiac harness applies a compressive force on the heart during diastole and systole. The electrodes will deliver an electrical shock...http://www.google.com/patents/US7146226?utm_source=gb-gplus-sharePatent US7146226 - Cardiac harness for treating congestive heart failure and for defibrillating and/or pacing/sensingAdvanced Patent SearchPublication numberUS7146226 B2Publication typeGrantApplication numberUS 10/964,420Publication dateDec 5, 2006Filing dateOct 13, 2004Priority dateNov 7, 2003Fee statusLapsedAlso published asCA2543365A1, EP1687059A1, US7149588, US7155295, US7164952, US7187984, US7225036, US20050102010, US20050102011, US20050102012, US20050102014, US20050102015, US20050119717, US20070112390, WO2005046789A1Publication number10964420, 964420, US 7146226 B2, US 7146226B2, US-B2-7146226, US7146226 B2, US7146226B2InventorsLilip Lau, Matthew G. Fishler, Craig MarOriginal AssigneeParacor Medical, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (103), Non-Patent Citations (18), Referenced by (4), Classifications (11), Legal Events (4) External Links: USPTO, USPTO Assignment, EspacenetCardiac harness for treating congestive heart failure and for defibrillating and/or pacing/sensing
US 7146226 B2Abstract
1. A method for delivering an electrode to a heart of a patient, comprising:
providing at least one electrode for defibrillation and/or pacing and sensing;
the at least one electrode having a first surface facing an epicardial surface of the heart and a second surface facing away from the epicardial surface of the heart, the second surface being coated with a dielectric material;
forming a small incision in a pericardium of the heart;
inserting the at least one electrode through the minimally invasive access site and through the small incision in the pericardium; and
positioning the at least one electrode on or near the epicardial surface of the heart.
2. The method of claim 1, wherein a lead is attached to the at least one electrode for providing an electrical connection to a power source.
3. The method of claim 1, wherein a power source is inserted through the minimally invasive access site and the at least one electrode is electrically connected to the power source.
4. The method of claim 1, wherein the at least one electrode is positioned on a cardiac harness mounted on the heart for providing therapy to the heart.
5. The method of claim 1, wherein the at least one electrode is positioned on a cardiac harness before inserting the at least one electrode through the minimally invasive access site.
6. The method of claim 5, wherein a lead is connected to the at least one electrode before inserting the at least one electrode through the minimally invasive access site.
7. The method of claim 5, wherein a lead is connected to the at least one electrode after inserting the at least one electrode through the minimally invasive access site.
8. The method of claim 1, wherein multiple electrodes are simultaneously inserted through the minimally invasive access site.
9. The method of claim 8, wherein the multiple electrodes are simultaneously inserted through the small incision in the pericardium.
10. The method of claim 9, wherein the multiple electrodes are simultaneously positioned on or near the epicardial surface of the heart.
11. The method of claim 8, wherein a lead is connected to each of the electrodes for providing a connection to a power source.
12. The method of claim 11, wherein the electrodes have a length substantially aligned with a longitudinal axis of the heart.
13. The method of claim 1, wherein the at least one electrode is positioned on the heart.
14. A method for delivering electrodes, comprising:
providing a plurality of electrodes for defibrillation and/or pacing and sensing;
the plurality of electrodes having a first surface facing an epicardial surface of the heart and a second surface facing away from the epicardial surface of the heart, the second surface being coated with a dielectric material;
forming an incision in a pericardium of a heart;
simultaneously inserting the plurality of electrodes through the minimally invasive access site;
advancing the plurality of electrodes distally into the patient;
inserting the plurality of electrodes through the incision in the pericardium; and
positioning the plurality of electrodes between the pericardium and the epicardial surface of the heart.
15. The method of claim 14, wherein the plurality of electrodes are spaced around the circumference of the heart.
16. The method of claim 14, wherein the plurality of electrodes have a length, the length being substantially aligned with a longitudinal axis of the heart.
17. The method of claim 14, wherein the plurality of electrodes are attached to a cardiac harness before being inserted through the minimally invasive access site.
18. The method of claim 14, wherein the plurality of electrodes are releasably contained in a delivery device prior to insertion through the minimally invasive access site.
19. The method of claim 18, wherein the plurality of electrodes are advanced distally out of the delivery device and onto or near the epicardial surface of the heart.
20. The method of claim 14, wherein prior to inserting the electrodes through the minimally invasive access site, the electrodes are attached to a cardiac harness and the electrodes and cardiac harness are releasably contained in a delivery device.
21. The method of claim 20, wherein the delivery device is inserted through the incision in the pericardium.
22. The method of claim 21, wherein the electrodes and the cardiac harness are advanced out of the delivery device and onto the epicardial surface of the heart.
23. The method of claim 14, wherein a power source is implanted in the patient and connected to the electrodes by leads for providing electrical stimulation to the heart.
24. The method of claim 23, wherein the power source delivers a defibrillating shock through the leads and the electrodes.
25. The method of claim 23, wherein the power source provides electrical power to the electrodes for providing sensing and pacing therapy to the patient.
26. The method of claim 14, wherein the electrodes are simultaneously positioned onto or near the epicardial surface of the heart.
27. A method for delivering an electrode to a heart, comprising:
forming a minimally invasive access site between two ribs of a patient;
inserting an electrode through the minimally invasive access site;
the electrode having a first surface facing an epicardial surface of the heart and a second surface facing away from the epicardial surface of the heart, the second surface being coated with a dielectric material;
inserting the electrode through the small incision in the pericardium; and
positioning the electrode between the pericardium and the epicardial surface of the heart for defibrillation and/or pacing and sensing.
28. The method of claim 27, wherein a lead is connected to the electrode.
29. The method of claim 28, wherein a power source is connected to the lead.
30. The method of claim 27, wherein a power source is inserted through the minimally invasive access site and electrically connected to the electrode.
31. The method of claim 27, wherein the electrode is attached to a cardiac harness before the electrode is inserted through the minimally invasive access site.
32. The method of claim 31, wherein the electrode and the cardiac harness are inserted into a delivery device.
33. The method of claim 32, wherein the delivery device is inserted through the minimally invasive access site and through the incision in the pericardium.
34. The method of claim 33, wherein the electrode and the cardiac harness are advanced distally out of the delivery device and the cardiac harness is mounted on the epicardial surface of the heart.
35. The method of claim 34, wherein the electrode contacts the epicardial surface of the heart.
36. The method of claim 34, wherein the electrode is near the epicardial surface of the heart.
37. A method for delivering and implanting electrodes on the heart, comprising:
inserting electrodes through the minimally invasive access site;
the electrodes having a first surface facing an epicardial surface of the heart and a second surface facing away from the epicardial surface of the heart, the second surface being coated with a dielectric material; and
positioning the electrodes on the heart for defibrillation and/or pacing and sensing.
38. The method of claim 37, wherein the electrodes are inserted through the minimally invasive access site at the same time.
39. The method of claim 37, wherein an incision is formed in the pericardium so that the electrodes are inserted through the incision and positioned between the pericardium and an epicardial surface of the heart.
40. The method of claim 39, wherein the electrodes are attached to a cardiac harness before inserting the electrodes through the minimally invasive access site.
41. The method of claim 37, wherein the electrodes are connected to a power source for delivering a defibrillating shock.
42. The method of claim 37, wherein the electrodes are connected to a power source for providing sensing and pacing therapy.
43. The method of claim 37, wherein the electrodes are connected to a power source for providing a defibrillating shock and for sensing and pacing therapy.
44. The method of claim 43, wherein the power source is inserted through the minimally invasive access site and implanted in the patient.
45. A method for delivering an electrode to a heart of a patient, comprising:
forming a first minimally invasive access site in a patient;
inserting the at least one electrode through the minimally invasive access site and through the small incision in the pericardium;
positioning the at least one electrode on or near the epicardial surface of the heart; and
forming a second minimally invasive access site in the patient and inserting a power source for implanting in the patient.
46. The method of claim 45, wherein the at least one electrode is electrically connected to the power source for providing electrical stimulation to the heart.
47. The method of claim 46, wherein the at least one electrode is positioned on a cardiac harness mounted on the heart for providing defibrillation or pacing therapy.
48. The method of claim 47, wherein the at least one electrode is positioned on the cardiac harness before inserting the at least one electrode through the first minimally invasive access site.
This application is a continuation application of U.S. Ser. No. 10/704,376 filed Nov. 7, 2003, and is a co-pending application of U.S. Ser. No. 10/703,549 filed Mar. 3, 2004; U.S. Ser. No. 10/777,451 filed Feb. 12, 2004; U.S. Ser. No. 10/795,574 filed Mar. 5, 2004; and U.S. Ser. No. 10/858,995 filed Jun. 2, 2004.
In another embodiment of the invention, as shown in FIGS. 9�14, cardiac harness 60 is similar to previously described cardiac harness 20. With respect to cardiac harness 60, it also includes panels 61 consisting of undulating strands 62. In the disclosed embodiments, the undulating strands are continuous and extend through coils as will be described. The undulating strands act as spring elements 63 as with prior embodiments that will expand and contract along directional line 64. The cardiac harness 60 includes a base or upper end 65 and an apex or lower end 66. In order to add stability to the cardiac harness 60, and to assist in maintaining the spacing between the undulating strands 62, grip pads 67 are connected to adjacent strands, preferably at the apex 68 of the springs. Alternatively, the grip pads 67 could be attached, from the apex of one spring element to the side 69 of a spring element, or the grip pad could be attached from the side of one spring to the side of an adjacent spring on an adjacent undulating strand. In further keeping with the invention as shown in the FIGS. 9�14, in order to add stability and some mechanical stiffness to the cardiac harness 60, coils 62 are interwoven with the undulating strands, which together define the panels 61. The coils typically are formed of a coil of wire such as Nitinol or similar material (stainless steel, MP35N), and are highly flexible along their longitudinal length. The coils 72 have a coil apex 73 and a coil base 74 to coincide with the harness base 65 and the harness apex 66. The coils can be injected with a non-conducting material so that the undulating strands extend through gaps in the coils and through the non-conducting material. The non-conducting material also fills in the gaps which will prevent the undulating strands from touching the coils so there is no metal-to-metal touching between the undulating strands and the coils. Preferably, the non-conducting material is a dielectric material 77 that is formed of silicone rubber or equivalent material as previously described. Further, a dielectric material 78 also covers the undulating strands in the event a defibrillating shock or pacing stimuli is delivered to the heart via an external defibrillator (e.g., transthoracic) or other means.
In an alternative embodiment, as shown in FIG. 24, the conductive coils 121 need not be continuous along the length of the electrode 120, but can be spatially isolated or staggered along the electrode. For example, multiple coil sections 127, similar to the coil 121 shown in FIG. 20, can be spaced along the electrode with each coil section being attached to the conductive wire so it receives electrical current from the power source. The coil sections can be from about 0.5 cm to about 20 cm long and be spaced from about 0.5 cm to about 4 cm apart along the electrode. The dimensions used herein are by way of example only and can vary to suit a particular application.
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