US5161528A
Expired / Lapsed
US
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Defibrillation method and apparatus
Assignee: Eli Lilly and Co
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Filing: 1990-09-05
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Granted: 1992-11-10
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Expires: 2010-09-05
Abstract
Abstract The present invention provides a method, and apparatus for accomplishing same, for defibrillating a mammal in need of defibrillation employing multiple bursts of electrical current delivered to the mammal, the timing between said bursts being based upon the mammal's fibrillation cycle length.
Inventors
- 👤 Robert J. Sweeney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:58
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/38; A61N1/39; A61N1/3987; A61N1/3904; A61N1/3956
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
62 words
A method of defibrillating a mammal in need of defibrillation comprising: a) first determining the mammal's fibrillation cycle length; and b) then administering to said mammal a plurality of bursts of electrical current delivered sequentially to said mammal, adjusting the timing between each pair of bursts such that it is independently about 75% to about 85% of said mammal's fibrillation cycle length.
Claim 2
Independent Claim
62 words
A method of defibrillating a mammal in need of defibrillation comprising: a) first determining the mammal's fibrillation cycle length; and b) then administering to said mammal a plurality of bursts of electrical current delivered sequentially to said mammal, adjusting the timing between each pair of bursts such that it is independently about 75% to about 85% of said mammal's fibrillation cycle length.
Claim 3
Dependent Claim
14 words
A method of claim 1 wherein the plurality of bursts consists of two bursts.
Claim 4
Dependent Claim
14 words
A method of claim 1 wherein the plurality of bursts consists of three bursts.
Claim 5
Dependent Claim
19 words
A method of claim 1 wherein the bursts of electrical current are administered within the body of the mammal.
Claim 6
Dependent Claim
14 words
A method of claim 4 wherein the plurality of bursts consists of two bursts.
Claim 7
Dependent Claim
20 words
A method of claim 4 wherein the voltage of each burst is from about 20 volts to about 800 volts.
Claim 8
Dependent Claim
17 words
A method of claim 6 wherein the voltage is from about 100 volts to about 500 volts.
Claim 9
Dependent Claim
17 words
A method of claim 7 wherein the voltage is from about 200 volts to about 300 volts.
Claim 10
Dependent Claim
57 words
A method of claim 7 wherein the plurality of bursts consists of two bursts; the current of each burst is from about 4 amps to about 10 amps; the voltage of each burst is from about 200 volts to about 300 volts; and the duration of each burst is from about 8 milliseconds to about 15 milliseconds.
Claim 11
Dependent Claim
15 words
A method of claim 9 wherein each burst is a standard truncated exponential waveform burst.
Claim 12
Dependent Claim
20 words
A method of claim 1 wherein the current of each burst is from about 0.4 amps to about 16 amps.
Claim 13
Dependent Claim
17 words
A method of claim 11 wherein the current is from about 4 amps to about 10 amps.
Claim 14
Dependent Claim
20 words
A method of claim 1 wherein the duration of each burst is from about 1 millisecond to about 40 milliseconds.
Claim 15
Dependent Claim
20 words
A method of claim 13 wherein the duration of each burst is from about 5 milliseconds to about 25 milliseconds.
Claim 16
Dependent Claim
20 words
A method of claim 14 wherein the duration of each burst is from about 8 milliseconds to about 15 milliseconds.
Claim 17
Dependent Claim
15 words
A method of claim 1 wherein each burst is a standard truncated exponential waveform burst.
Claim 18
Independent Claim
99 words
A method of defibrillating a mammal in need of defibrillation comprising: a) first determining the mammal's fibrillation cycle length; and b) then administering to said mammal two bursts of electrical current delivered sequentially to said mammal; the current of each burst being from about 4 amps to about 10 amps; the voltage of each burst being from about 200 volts to about 300 volts; the duration of each burst being from about 8 milliseconds to about 15 milliseconds; and adjusting the timing between bursts such that it is about 75% to about 85% of the mammal's fibrillation cycle length.
Claim 19
Independent Claim
99 words
A method of defibrillating a mammal in need of defibrillation comprising: a) first determining the mammal's fibrillation cycle length; and b) then administering to said mammal two bursts of electrical current delivered sequentially to said mammal; the current of each burst being from about 4 amps to about 10 amps; the voltage of each burst being from about 200 volts to about 300 volts; the duration of each burst being from about 8 milliseconds to about 15 milliseconds; and adjusting the timing between bursts such that it is about 75% to about 85% of the mammal's fibrillation cycle length.
Claim 20
Dependent Claim
15 words
A method of claim 17 wherein each burst is a standard truncated exponential waveform burst.
Claim 21
Independent Claim
88 words
An apparatus for defibrillating a mammal in need of defibrillation comprising: a) a sensing means for determining the mammal's fibrillation cycle length; b) a shocking means for administering bursts of electrical current to a mammal; and c) a timing means, connected electrically to said sensing means and said shocking means, for activating said shocking means such that said means delivers a plurality of bursts of electrical current sequentially to said mammal, the timing between said bursts being based upon the fibrillation cycle length determined by said sensing means.
Claim 22
Independent Claim
88 words
An apparatus for defibrillating a mammal in need of defibrillation comprising: a) a sensing means for determining the mammal's fibrillation cycle length; b) a shocking means for administering bursts of electrical current to a mammal; and c) a timing means, connected electrically to said sensing means and said shocking means, for activating said shocking means such that said means delivers a plurality of bursts of electrical current sequentially to said mammal, the timing between said bursts being based upon the fibrillation cycle length determined by said sensing means.
References Cited (Backward Citations)
US4548203A
Cited
US4559946A
Cited
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