Source: http://www.google.com/patents/US20020068958?dq=6,370,566
Timestamp: 2018-01-21 21:38:35
Document Index: 742771292

Matched Legal Cases: ['art.\n32', 'art.\n33', 'art.\n34', 'art.\n35', 'art.\n36', 'art.\n37', 'art.\n38', 'art.\n47', 'art.\n71', 'art.\n78', 'art.\n79', 'art.\n80', 'art.\n81', 'art.\n115', 'art.\n116', 'art.\n117', 'art.\n118', 'art.\n119', 'art.\n120', 'art.\n121']

Patent US20020068958 - Radian curve shaped implantable cardioverter-defibrillator canister - Google Patents
One embodiment of the present invention provides an implantable cardioverter-defibrillator for subcutaneous positioning between the third rib and the twelfth rib within a patient, the implantable cardioverter-defibrillator including a housing, wherein at least a portion of the housing is curved; an electrical...http://www.google.com/patents/US20020068958?utm_source=gb-gplus-sharePatent US20020068958 - Radian curve shaped implantable cardioverter-defibrillator canister
Publication number US20020068958 A1
Application number US 09/940,373
Also published as US6788974, US7120496, US20040260353, WO2003018120A1
Publication number 09940373, 940373, US 2002/0068958 A1, US 2002/068958 A1, US 20020068958 A1, US 20020068958A1, US 2002068958 A1, US 2002068958A1, US-A1-20020068958, US-A1-2002068958, US2002/0068958A1, US2002/068958A1, US20020068958 A1, US20020068958A1, US2002068958 A1, US2002068958A1
Patent Citations (8), Referenced by (145), Classifications (11), Legal Events (7)
US 20020068958 A1
a housing, wherein at least a portion of the housing is curved;
an electrically conductive surface located on a portion of the housing, wherein the electrically conductive surface is coupled to the electrical circuit.
2. The implantable cardioverter-defibrillator of claim 1, wherein the housing comprises an electrically insulated material.
3. The implantable cardioverter-defibrillator of claim 1, wherein the housing comprise an electrically nonconductive material.
4. The implantable cardioverter-defibrillator of claim 1, wherein the housing is pliable.
5. The implantable cardioverter-defibrillator of claim 1, wherein the housing comprises a material that can be sterilized.
6. The implantable cardioverter-defibrillator of claim 1, wherein the housing comprises a ceramic material.
7. The implantable cardioverter-defibrillator of claim 1, wherein the housing comprises a titanium alloy.
8. The implantable cardioverter-defibrillator of claim 1, wherein the housing comprises a stainless steel alloy.
9. The implantable cardioverter-defibrillator of claim 1, wherein the housing comprises a polymeric material.
10. The implantable cardioverter-defibrillator of claim 9, wherein the polymeric material is selected from the group consisting essentially of a polyurethane, a polyamide, a polyetheretherketone (PEEK), a polyether block amide (PEBA), a polytetrafluoroethylene (PTFE), a silicone, and mixtures thereof.
11. The implantable cardioverter-defibrillator of claim 1, wherein the housing further comprises;
an origin defining a position on the housing between the first vector end point and the second end point; and
12. The implantable cardioverter-defibrillator of claim 11, wherein the origin is centered between the first vector end point and the second vector end point.
13. The implantable cardioverter-defibrillator of claim 11, wherein the angle of separation is between approximately 30 degrees and approximately 60 degrees.
14. The implantable cardioverter-defibrillator of claim 11, wherein the angle of separation is between approximately 60 degrees and 90 degrees.
15. The implantable cardioverter-defibrillator of claim 11, wherein the angle of separation is between approximately 90 degrees and 120 degrees.
16. The implantable cardioverter-defibrillator of claim 11, wherein the angle of separation is between approximately 120 degrees and 150 degrees.
17. The implantable cardioverter-defibrillator of claim 11, wherein the angle of separation is between approximately 150 degrees and 180 degrees.
18. The implantable cardioverter-defibrillator of claim 1, wherein the portion of the housing being curved comprises a circular curve.
19. The implantable cardioverter-defibrillator of claim 1, wherein the portion of the housing being curved comprises an elliptical curve.
20. The implantable cardioverter-defibrillator of claim 1, wherein the portion of the housing being curved comprises a nonsymmetrical curve.
21. The implantable cardioverter-defibrillator of claim 1, wherein the portion of the housing being curved comprises a non-linear curve.
22. The implantable cardioverter-defibrillator of claim 1, wherein the housing further comprises a first segment and a second segment, wherein at least a portion of the first segment is curved.
23. The implantable cardioverter-defibrillator of claim 22, further wherein at least a portion of the second segment is curved.
24. The implantable cardioverter-defibrillator of claim 23, wherein the portion of the second segment being curved comprises a circular curve.
25. The implantable cardioverter-defibrillator of claim 23, wherein the portion of the second segment being curved comprises an elliptical curve.
26. The implantable cardioverter-defibrillator of claim 23, wherein the portion of the second segment being curved comprises a nonsymmetrical arc.
27. The implantable cardioverter-defibrillator of claim 22, further wherein the second segment of the housing is substantially straight.
28. The implantable cardioverter-defibrillator of claim 22, wherein the first segment of the housing is contiguous with the second segment of the housing.
29. The implantable cardioverter-defibrillator of claim 22, wherein the first segment of the housing is disjointed with the second segment of the housing.
30. The implantable cardioverter-defibrillator of claim 22, wherein a hinge couples the first segment of the housing to the second segment of the housing.
31. The implantable cardioverter-defibrillator of claim 1 wherein the electrical circuit can provide cardioversion defibrillation for the patient's heart.
32. The implantable cardioverter-defibrillator of claim 31, wherein the electrical circuit can further provide multiphasic waveform cardiac pacing for the patient's heart.
33. The implantable cardioverter-defibrillator of claim 1, wherein the electrical circuit can provide biphasic waveform cardioversion-defibrillation for the patient's heart.
34. The implantable cardioverter-defibrillator of claim 33, wherein the electrical circuit can provide triphasic waveform cardioversion-defibrillation for the patient's heart.
35. The implantable cardioverter-defibrillator of claim 33, wherein the electrical circuit can provide biphasic waveform cardiac pacing for the patient's heart.
36. The implantable cardioverter-defibrillator of claim 33, wherein the electrical circuit can provide monophasic waveform cardiac pacing for the patient's heart.
37. The implantable cardioverter-defibrillator of claim 1, wherein the electrically conductive surface can emit an energy for shocking the patient's heart.
38. The implantable cardioverter-defibrillator of claim 37, wherein the electrically conductive surface can further receive sensory information.
39. The implantable cardioverter-defibrillator of claim 1, wherein the surface can receive sensory information.
40. The implantable cardioverter-defibrillator of claim 1, wherein the housing further comprises a connection port that electrically couples to the electrical circuit.
41. The implantable cardioverter-defibrillator of claim 40, wherein the connection port is further coupled to a lead.
42. The implantable cardioverter-defibrillator of claim 40, wherein the lead is a pacing lead.
43. The implantable cardioverter-defibrillator of claim 40, wherein the lead is a shocking lead.
44. The implantable cardioverter-defibrillator of claim 40, wherein the lead is a sensory lead.
45. A cardioverter-defibrillator comprising:
46. The cardioverter-defibrillator of claim 45, wherein the electrode can emit an energy for shocking a patient's heart.
47. The cardioverter-defibrillator of claim 46, wherein the electrode can further receive sensory information.
48. The cardioverter-defibrillator of claim 45, wherein the electrode can receive sensory information.
49. The cardioverter-defibrillator of claim 45, wherein at least portion of the electrode is non-planar.
50. The cardioverter-defibrillator of claim 45, wherein the housing comprises an electrically insulated material.
51. The cardioverter-defibrillator of claim 45, wherein the housing comprises an electrically nonconductive material.
52. The cardioverter-defibrillator of claim 45, wherein the housing is pliable.
53. The cardioverter-defibrillator of claim 45, wherein the housing comprises a material that can be sterilized.
54. The cardioverter-defibrillator of claim 45, wherein the housing comprises a ceramic material.
55. The cardioverter-defibrillator of claim 45, wherein the housing comprises a titanium alloy.
56. The cardioverter-defibrillator of claim 45, wherein the housing comprises a stainless steel alloy.
57. The cardioverter-defibrillator of claim 45, wherein the housing comprises a polymeric material.
58. The cardioverter-defibrillator of claim 57, wherein the polymeric material is selected from the group consisting essentially of a polyurethane, a polyamide, a polyetheretherketone (PEEK), a polyether block amide (PEBA), a polytetrafluoroethylene (PTFE), a silicone, and mixtures thereof.
59. The implantable cardioverter-defibrillator of claim 1, wherein the housing further comprises:
60. The implantable cardioverter-defibrillator of claim 59, wherein the origin is centered between the first vector end point and the second vector end point.
61. The implantable cardioverter-defibrillator of claim 59, wherein the angle of separation is between approximately 30 degrees and approximately 60 degrees.
62. The implantable cardioverter-defibrillator of claim 59, wherein the angle of separation is between approximately 60 degrees and approximately 90 degrees.
63. The implantable cardioverter-defibrillator of claim 59, wherein the angle of separation is between approximately 90 degrees and approximately 120 degrees.
64. The implantable cardioverter-defibrillator of claim 59, wherein the angle of separation is between approximately 120 degrees and approximately 150 degrees.
65. The implantable cardioverter-defibrillator of claim 59, wherein the angle of separation is between approximately 150 degrees and approximately 180 degrees.
66. The cardioverter-defibrillator of claim 45, wherein the curved portion of the housing comprises a circular curve.
67. The cardioverter-defibrillator of claim 45, wherein the curved portion of the housing comprises an elliptical curve.
68. The cardioverter-defibrillator of claim 45, wherein the curved portion of the housing comprises a nonsymmetrical curve.
69. The cardioverter-defibrillator of claim 45, wherein the curved portion of the housing comprises a non-linear curve.
70. The cardioverter-defibrillator of claim 45, wherein the predetermined relationship is with respect to the patient's heart.
71. The cardioverter-defibrillator of claim 45, wherein the curved portion of the housing maintains the electrode subcutaneously over an area defined between the patient's third rib and the patient's twelfth rib.
72. The cardioverter-defibrillator of claim 45, wherein the housing further comprises a connection port that electrically couples to the electrical circuit.
73. The cardioverter-defibrillator of claim 72, wherein the connection port is further coupled to a lead.
74. The cardioverter-defibrillator of claim 73, wherein the lead is a pacing lead.
75. The cardioverter-defibrillator of claim 73, wherein the lead is a shocking lead.
76. The cardioverter-defibrillator of claim 73, wherein the lead is a sensory lead.
77. The cardioverter-defibrillator of claim 45, wherein the cardioversion-defibrillation circuitry can provide multiphasic waveform cardiac pacing for a patient's heart.
78. The cardioverter-defibrillator of claim 77, wherein the cardioversion-defibrillation circuitry can provide biphasic waveform cardiac pacing for a patient's heart.
79. The cardioverter-defibrillator of claim 77, wherein the cardioversion-defibrillation circuitry can provide triphasic waveform cardiac pacing for a patient's heart.
80. The cardioverter-defibrillator of claim 77, wherein the cardioversion-defibrillation circuitry can provide monophasic waveform cardiac pacing for a patient's heart.
81. A subcutaneous cardioverter-defibrillator comprising:
a housing having a top surface and a bottom surface, wherein at least a portion of the bottom surface of the housing is non planar;
an electrode located upon a portion of the housing, wherein the electrode couples to the electrical circuit, and further wherein the electrode can provide a cardioversion energy of approximately 5 V/cm to approximately 90 percent of a patient's myocardium.
82. The subcutaneous cardioverter-defibrillator of claim 81, wherein the housing comprises an electrically insulated material.
83. The subcutaneous cardioverter-defibrillator of claim 81, wherein the housing comprises an electrically nonconductive material.
84. The subcutaneous cardioverter-defibrillator of claim 81, wherein the housing is pliable.
85. The subcutaneous cardioverter-defibrillator of claim 82, wherein the housing comprises a material that can be sterilized.
86. The subcutaneous cardioverter-defibrillator of claim 81, wherein the housing comprises a ceramic material.
87. The subcutaneous cardioverter-defibrillator of claim 81, wherein the housing comprises a titanium alloy.
88. The subcutaneous cardioverter-defibrillator of claim 81, wherein the housing comprises a stainless steel alloy.
89. The subcutaneous cardioverter-defibrillator of claim 81, wherein the housing comprises a polymeric material.
90. The subcutaneous cardioverter-defibrillator of claim 89, wherein the polymeric material is selected from the group consisting essentially of a polyurethane, a polyamide, a polyetheretherketone (PEEK), a polyether block amide (PEBA), a polytetrafluoroethylene (PTFE), a silicone, and mixtures thereof.
91. The subcutaneous cardioverter-defibrillator of claim 1, wherein the housing further comprises;
a first vector end point located at a second end of the housing;
92. The subcutaneous cardioverter-defibrillator of claim 91, wherein the origin is centered between the first vector end point and the second vector end point.
93. The subcutaneous cardioverter-defibrillator of claim 91, wherein the angle of separation is between approximately 30 degrees and approximately 60 degrees.
94. The subcutaneous cardioverter-defibrillator of claim 91, wherein the angle of separation is between approximately 60 degrees and approximately 90 degrees.
95. The subcutaneous cardioverter-defibrillator of claim 91, wherein the angle of separation is between approximately 90 degrees and approximately 120 degrees.
96. The subcutaneous cardioverter-defibrillator of claim 91, wherein the angle of separation is between approximately 120 degrees and approximately 150 degrees.
97. The subcutaneous cardioverter-defibrillator of claim 91, wherein the angle of separation is between approximately 150 degrees and approximately 180 degrees.
98. The subcutaneous cardioverter-defibrillator of claim 57, wherein the portion of the bottom surface of the housing being non planar comprises a circular curve.
99. The subcutaneous cardioverter-defibrillator of claim 81, wherein the portion of the bottom surface of the housing being non planar comprises an elliptical curve.
100. The subcutaneous cardioverter-defibrillator of claim 81, wherein the portion of the bottom surface of the housing being non planar comprises a nonsymmetrical curve.
101. The subcutaneous cardioverter-defibrillator of claim 81, wherein the portion of the bottom surface of the housing being non planar comprises a non-linear curve.
102. The subcutaneous cardioverter-defibrillator of claim 81, wherein the bottom surface of the housing is substantially smooth.
103. The subcutaneous cardioverter-defibrillator of claim 81, wherein the bottom surface of the housing is larger than the top surface of the housing.
104. The subcutaneous cardioverter-defibrillator of claim 81, wherein a portion of the top surface of the housing is substantially planar.
105. The subcutaneous cardioverter-defibrillator of claim 81, wherein a portion of the top surface of the housing is substantially non planar.
106. The subcutaneous cardioverter-defibrillator of claim 105, wherein the portion the top surface of the housing being non planar comprises a circular curve.
107. The subcutaneous cardioverter-defibrillator of claim 105, wherein the portion of the top surface of the housing being non planar comprises an elliptical curve.
108. The subcutaneous cardioverter-defibrillator of claim 105, wherein the portion of the top surface of the housing being non planar comprises a nonsymmetrical curve.
109. The subcutaneous cardioverter-defibrillator of claim 105, wherein the portion of the top surface of the housing being non planar comprises a non-linear curve.
110. The subcutaneous cardioverter-defibrillator of claim 81, wherein the top surface of the housing is substantially smooth.
111. The subcutaneous cardioverter-defibrillator of claim 81, wherein the bottom surface further comprises a proximal end and a distal end, wherein the electrode is located at the proximal end of the bottom surface.
112. The subcutaneous cardioverter-defibrillator of claim 111, wherein a second electrode is located at the distal end of the bottom surface.
113. The subcutaneous cardioverter-defibrillator of claim 81, wherein at least a portion of the electrode is non-planar.
114. The subcutaneous cardioverter-defibrillator of claim 81, wherein the electrical circuit can provide cardioversion-defibrillation for the patient's heart.
115. The subcutaneous cardioverter-defibrillator of claim 80, wherein the electrical circuit can further provide multiphasic waveform cardiac pacing for the patient's heart.
116. The subcutaneous cardioverter-defibrillator of claim 81, wherein the electrical circuit can provide biphasic waveform cardiac pacing for the patient's heart.
117. The subcutaneous cardioverter-defibrillator of claim 81, wherein the electrical circuit can provide biphasic waveform cardiac pacing for the patient's heart.
118. The subcutaneous cardioverter-defibrillator of claim 81, wherein the electrical circuit can provide triphasic waveform cardiac pacing for the patient's heart.
119. The subcutaneous cardioverter-defibrillator of claim 81, wherein the electrical circuit can provide monophasic waveform cardiac pacing for the patient's heart.
120. The subcutaneous cardioverter-defibrillator of claim 81, wherein the electrode can emit an energy for shocking the patient's heart.
121. The subcutaneous cardioverter-defibrillator of claim 120, wherein the electrode can further receive sensory information.
122. The subcutaneous cardioverter-defibrillator of claim 81, wherein the electrode can receive sensory information.
123. The subcutaneous cardioverter-defibrillator of claim 81, wherein the housing further comprises a connection port that electrically couples to the electrical circuit.
124. The subcutaneous cardioverter-defibrillator of claim 123, wherein the connection port is further coupled to a lead.
125. The subcutaneous cardioverter-defibrillator of claim 124, wherein the lead is a pacing lead.
126. The subcutaneous cardioverter-defibrillator of claim 124, wherein the lead is a shocking lead.
127. The subcutaneous cardioverter-defibrillator of claim 124, wherein the lead is a sensory lead.
In addition, the present application is filed concurrently herewith U.S. patent application entitled “DUCKBILL-SHAPED IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR AND METHOD OF USE,” U.S. patent application entitled “CERAMICS AND/OR OTHER MATERIAL INSULATED SHELL FOR ACTIVE AND NON-ACTIVE S-ICD CAN,” U.S. patent application entitled “SUBCUTANEOUS ELECTRODE FOR TRANSTHORACIC CONDUCTION WITH IMPROVED INSTALLATION CHARACTERISTICS,” U.S. patent application entitled “SUBCUTANEOUS ELECTRODE WITH IMPROVED CONTACT SHAPE FOR TRANSTHORACIC CONDUCTION,” U.S. patent application entitled “SUBCUTANEOUS ELECTRODE FOR TRANSTHORACIC CONDUCTION WITH HIGHLY MANEUVERABLE INSERTION TOOL,” U.S. patent application entitled “SUBCUTANEOUS ELECTRODE FOR TRANSTHORACIC CONDUCTION WITH LOW-PROFILE INSTALLATION APPENDAGE AND METHOD OF DOING SAME,” U.S. patent application entitled “SUBCUTANEOUS ELECTRODE FOR TRANSTHORACIC CONDUCTION WITH INSERTION TOOL,” U.S. patent application entitled “METHOD OF INSERTION AND IMPLANTATION FOR IMPLANTABLE X CARDIOVERTER-DEFIBRILLATOR CANISTERS,” U.S. patent application entitled “CANISTER DESIGNS FOR IMPLANTABLE CARDIOVERTER-DEFIBRILLATORS,” U.S. patent application entitled “CARDIOVERTER-DEFIBRILLATOR HAVING A FOCUSED SHOCKING AREA AND ORIENTATION THEREOF,” U.S. patent application entitled “BIPHASIC WAVEFORM FOR ANTI-BRADYCARDIA PACING FOR A SUBCUTANEOUS IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR,” U.S. patent application entitled “BIPHASIC WAVEFORM FOR ANTI-TACHYCARDIA PACING FOR A SUBCUTANEOUS IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR,” and U.S. patent application entitled “POWER SUPPLY FOR A SUBCUTANEOUS IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR,” the disclosures of which applications are hereby incorporated by reference.
[0016]FIG. 3 is a schematic view of an alternate embodiment of a At subcutaneous electrode of the present invention;
Turning now to FIG. 1, the S-ICD of the present invention is illustrated. The S-ICD consists of an electrically active canister 11 and a subcutaneous electrode 13 attached to the canister. The canister has an electrically active surface 15 that is electrically insulated from the electrode connector block 17 and the canister housing 16 via insulating area 14. The canister can be similar to numerous electrically active canisters commercially available in that the canister will contain a battery supply, capacitor and operational circuitry. Alternatively, the canister can be thin and elongated to conform to the intercostal space. The circuitry will be able to monitor cardiac rhythms for tachycardia and fibrillation, and if detected, will initiate charging the capacitor and then delivering cardioversion /defibrillation energy through the active surface of the housing and to the subcutaneous electrode. Examples of such circuitry are described in U.S. Pat. Nos. 4,693,253 and 5,105,810, the entire disclosures of which are herein incorporated by reference. The canister circuitry can provide cardioversion/ defibrillation energy in different types of waveforms. In the preferred embodiment, a 100 uF biphasic waveform is used of approximately 10-20 ms total duration and with the initial phase containing approximately ⅔ of the energy, however, any type of waveform can be utilized such as monophasic, biphasic, multiphasic or alternative waveforms as is known in the art.
The thick end of the housing is currently needed to allow for the placement of the battery supply, operational circuitry, and capacitors. It is contemplated that the thick end will be about 0.5 cm to about 2 cm wide with about 1 cm being presently i) preferred. As microtechnology advances, the thickness of the housing will become smaller.
Referring now to the particular embodiments, FIG. 19 depicts an S-ICD canister 190 of an embodiment of the present invention. The shell of the S-ICD canister 190 comprises a hermetically sealed housing 192 that encases the electronics for the S-ICD canister 190. As with the previously described S- ICD devices, the electronics of the present embodiment include, at a minimum, a battery supply, a capacitor and operational circuitry. FIG. 19 further depicts a lead electrode 191 coupled to the shell of the canister through a lead 193. A dorsal fin 197 may be disposed on the lead electrode 191 to facilitate the positioning of the lead electrode.
An ellipsoidal shaped electrode 268 is depicted in FIG. 25A. The distal end of the ellipsoidal shaped electrode 268 generally follows the outline of the rounded distal end 264 of the canister housing 260. As the ellipsoidal shaped electrode 268 moves proximally along the length of the canister housing 260, the conductive surface elongates and then again reduces in length to form a rounded proximal end. Similar to the thumbnail and spade shaped embodiments described above, the ellipsoidal shaped electrode's conductive surface is generally contained within the distal end 264 of the canister housing 260. In alternate embodiments, the ellipsoidal shape electrode's conductive surface may extend proximally further within the canister housing 260. In yet another ellipsoidal shaped electrode 264 embodiment, the margins of the ellipsoidal shaped electrode's conductive surface refrain from following the exact Ad rounded contour of the canister housing 260, but substantially form an ellipsoidal shaped configuration.
Generally, it is desirable to have the electrode's longest conductive surface plane positioned perpendicular to the extending ribs within a recipient's rib cage. Aligning the electrode 204 in this manner removes the longest conductive plane from possibly extending directly over any one particular rib. If the longest conductive surface were to extend along the length of a rib, a greater percentage of emitted energy would be distributed through the rib material, and consequently, may fail to reach the heart muscle. When aligned perpendicular to the ribs, only a portion of the conductive surface is directly over any particular rib. This alignment permits only a small percentage of the emitted energy to be obstructed by the impeding rib material. Therefore, in particular S-ICD canister 190 embodiments that extend parallel with a recipient's rib cage, the width 205 of the electrode's conductive surface is approximately greater than or equal to the length 207 of the electrode's conductive surface. This electrode 204 sizing is best illustrated with reference to FIG. 20. The conductive surface of the thumbnail-shaped electrode in FIG. 20 is depicted as both shallow and wide. In contrast, S-ICD canister 190 embodiments that extend perpendicular with a recipient's rib cage, can have their conductive surface's length 207 being greater than their conductive surface's width 205. The appropriate S-ICD canister 190 alignment, and subsequently the appropriate electrode 204 alignment, is determined by the style of S-ICD canister 190 chosen for the patient recipient. FIGS. 23A-26C illustrate numerous S-ICD canister housing embodiments 192 for properly positioning an electrode 204 over a recipient's heart. The embodiments depicted, however, are for illustrative go purposes only, and are not intended to limit the scope of the present invention.
US8483841 * Dec 11, 2009 Jul 9, 2013 Cameron Health, Inc. Electrode spacing in a subcutaneous implantable cardiac stimulus device
US9295428 * Aug 22, 2013 Mar 29, 2016 Biotronik Se & Co. Kg Method of enhancing the signal-to-noise ratio (SNR) of measured electrocardiogram (ECG) signals and a cardiac device for use in detecting heartbeats
US20140088399 * Aug 22, 2013 Mar 27, 2014 Biotronik Se & Co. Kg Method of enhancing the signal-to-noise ratio (snr) of measured electrocardiogram (ecg) signals and a cardiac device for use in detecting heartbeats
Cooperative Classification A61N1/3968, A61N1/3956, A61N1/375, A61N1/3906, A61N1/3756, A61N1/3975