US5454779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Devices and methods for external chest compression
Assignee: University of California, San Diego
•
Filing: 1994-04-12
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Granted: 1995-10-03
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Expires: 2014-04-12
Abstract
Abstract A method for performing cardiopulmonary resuscitation employs an applicator device having a body with an upper surface and a lower surface. The lower surface includes provisions for detachably securing to the patient's chest, such as a vacuum cup or an adhesive layer. For manual resuscitation, the upper surface will include a strap or other means for securing a performer's hand thereto. For automatic applications, a mechanical drive member will be secured to the upper surface. By alternately pressing and lifting on the applicator device, the patient's chest can be compressed and expanded to improve induced ventilation and circulation.
Inventors
- 👤 Keith G. Lurie
- 👤 Todd J. Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:00
CPC Classifications
A; A61; A61H; A61H31/00; A61H31/004; A61H31/007; A61H2031/001; A61H2031/002; A61H2201/00; A61H2201/10; A61H2230/00; A61H2230/04; A61N; A61N1/00
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
101 words
A method for performing cardiopulmonary resuscitation of a patient suffering cardiac arrest and apnea, said method comprising: pressing an applicator body against the patient's sternum to compress the patient's chest, wherein sufficient pressure is applied to the sternum to compress the chest in the range from about 3.5 to 5 cm; lifting the applicator to actively expand the patient's chest wherein a lower surface of the applicator adheres to the patient's chest; and alternating the pressing and lifting steps at a rate in the range from about 80 to 100 repititions per minute until the patient's heartbeat and respiration are restored.
Claim 2
Independent Claim
101 words
A method for performing cardiopulmonary resuscitation of a patient suffering cardiac arrest and apnea, said method comprising: pressing an applicator body against the patient's sternum to compress the patient's chest, wherein sufficient pressure is applied to the sternum to compress the chest in the range from about 3.5 to 5 cm; lifting the applicator to actively expand the patient's chest wherein a lower surface of the applicator adheres to the patient's chest; and alternating the pressing and lifting steps at a rate in the range from about 80 to 100 repititions per minute until the patient's heartbeat and respiration are restored.
Claim 3
Dependent Claim
23 words
A method as in claim 1, wherein at least one of the performer's hands presses directly against an upper surface of the applicator.
Claim 4
Dependent Claim
30 words
A method as in claim 1, wherein the lower surface adheres to the patient's chest at a location over the sternum at least in part as a result of suction.
Claim 5
Dependent Claim
25 words
A method as in claim 1, wherein the lower surface adheres to the patient's chest at least in part as a result of an adhesive.
Claim 6
Dependent Claim
35 words
A method as in claim 6, wherein the patient is lying on a flat surface, a performer kneels next to the patient, and the performer alternately presses and lifts the applicator using fully extended arms.
Claim 7
Dependent Claim
26 words
A method as in claim 1, wherein the performer presses against and lifts upon a handle which is secured to an upper surface of the applicator.
Claim 8
Dependent Claim
39 words
A method as in claim 6, wherein the applicator is a flexible cup and the performer grasps lateral extensions disposed symmetrically on the handle with each hand, wherein the handle is disposed at the center of the upper surface.
Claim 9
Independent Claim
119 words
A method for performing cardiopulmonary resuscitation of a patient suffering cardiac arrest and apnea, said method comprising: compressing the patient's chest by manually pressing on an upper surface of a flexible cup having a hollow interior, where a lower lip of the cup is disposed against the patient's sternum resulting in a vacuum, wherein the chest is compressed sufficiently to induce blood circulation from the chest; actively expanding the patient's chest by manually lifting on the upper surface of the flexible cup, wherein the chest is raised by the vacuum to further induce blood circulation and ventilation; and alternating the compressing and expanding steps according to a preselected rhythm, wherein each compressing step is followed by the expanding step.
Claim 10
Independent Claim
119 words
A method for performing cardiopulmonary resuscitation of a patient suffering cardiac arrest and apnea, said method comprising: compressing the patient's chest by manually pressing on an upper surface of a flexible cup having a hollow interior, where a lower lip of the cup is disposed against the patient's sternum resulting in a vacuum, wherein the chest is compressed sufficiently to induce blood circulation from the chest; actively expanding the patient's chest by manually lifting on the upper surface of the flexible cup, wherein the chest is raised by the vacuum to further induce blood circulation and ventilation; and alternating the compressing and expanding steps according to a preselected rhythm, wherein each compressing step is followed by the expanding step.
Claim 11
Dependent Claim
25 words
A method as in claim 8, further comprising securing a performer's hand to the upper surface of the flexible cup prior to compressing and expanding.
Claim 12
Dependent Claim
20 words
A method as in claim 9, wherein the performer's hand is secured by a strap attached to the upper surface.
Claim 13
Dependent Claim
22 words
A method as in claim 9, wherein the performer's hand is secured by a glove or mitten attached to the upper surface.
Claim 14
Dependent Claim
41 words
A method as in claim 8, wherein the patient is lying on a flat surface, a performer kneels next to the patient, and the performer alternately presses and lifts on the upper surface of the flexible cup using fully extended arms.
Claim 15
Dependent Claim
39 words
A method as in claim 8, wherein the applicator includes a handle having lateral extensions disposed symmetrically thereon, where the performer grasps the lateral extension with each hand to apply pressure uniformly on the upper surface of the applicator.
Claim 16
Dependent Claim
35 words
A method as in claim 8, wherein the patient's chest is compressed in the range from about 3.5 cm to 5 cm at a rhythm in the range from 80 to 100 repititions per minute.
Claim 17
Independent Claim
140 words
A method for performing cardiopulmonary resuscitation of a patient suffering cardiac arrest and apnea, said method comprising: compressing the patient's chest by manually pressing on an upper surface of a flexible cup having a hollow interior, where a lower lip of the cup is disposed against the patient's sternum resulting in a vacuum, wherein the chest is compressed sufficiently to induce blood circulation from the chest; actively expanding the patient's chest by manually lifting on the upper surface of the flexible cup, whereby the chest is raised by the vacuum to further induce blood circulation and ventilation; alternating the compressing and expanding steps according to a preselected rhythm, wherein the chest is lifted and allowed to remain ventilated until the following compressing step; and monitoring the patient's electrocardiographic characteristics using an electrode which is on the lip of the cup.
Claim 18
Independent Claim
140 words
A method for performing cardiopulmonary resuscitation of a patient suffering cardiac arrest and apnea, said method comprising: compressing the patient's chest by manually pressing on an upper surface of a flexible cup having a hollow interior, where a lower lip of the cup is disposed against the patient's sternum resulting in a vacuum, wherein the chest is compressed sufficiently to induce blood circulation from the chest; actively expanding the patient's chest by manually lifting on the upper surface of the flexible cup, whereby the chest is raised by the vacuum to further induce blood circulation and ventilation; alternating the compressing and expanding steps according to a preselected rhythm, wherein the chest is lifted and allowed to remain ventilated until the following compressing step; and monitoring the patient's electrocardiographic characteristics using an electrode which is on the lip of the cup.
Claim 19
Independent Claim
142 words
A method for performing cardiopulmonary resuscitation of a patient suffering cardiac arrest and apnea, said method comprising: compressing the patient's chest by manually pressing on an upper surface of a flexible cup having a hollow interior, where a lower lip of the cup is disposed against the patient's sternum resulting in a vacuum, wherein the chest is compressed sufficiently to induce blood circulation from the chest; actively expanding the patient's chest by manually lifting on the upper surface of the flexible cup, whereby the chest is raised by the vacuum to further induce blood circulation and ventilation; alternating the compressing and expanding steps according to a preselected rhythm, wherein the chest is lifted and allowed to remain ventilated until the following compressing step; and defibrillating the patient by applying electrical energy using an electrode which is on the lip of the cup.
Claim 20
Independent Claim
142 words
A method for performing cardiopulmonary resuscitation of a patient suffering cardiac arrest and apnea, said method comprising: compressing the patient's chest by manually pressing on an upper surface of a flexible cup having a hollow interior, where a lower lip of the cup is disposed against the patient's sternum resulting in a vacuum, wherein the chest is compressed sufficiently to induce blood circulation from the chest; actively expanding the patient's chest by manually lifting on the upper surface of the flexible cup, whereby the chest is raised by the vacuum to further induce blood circulation and ventilation; alternating the compressing and expanding steps according to a preselected rhythm, wherein the chest is lifted and allowed to remain ventilated until the following compressing step; and defibrillating the patient by applying electrical energy using an electrode which is on the lip of the cup.
Claim 21
Independent Claim
123 words
A method for simultaneously resuscitating and monitoring electrocardiographic activity of a patient suffering cardiac arrest, said method comprising: pressing an applicator body against the patient's chest at a location over the sternum to compress the chest; lifting the applicator to actively expand the patient's chest, wherein a lower surface of the applicator adheres to the chest at said location over the sternum; detecting the patient's electrocardiographic pattern through an electrode in the lower surface of the applicator; and alternating the pressing and lifting steps so that each pressing step will last in the range from about 0.2 to 0.7 seconds and each lifting step will last in the range from about 0.2 to 0.7 seconds until the patient's heartbeat and respiration are restored.
Claim 22
Independent Claim
123 words
A method for simultaneously resuscitating and monitoring electrocardiographic activity of a patient suffering cardiac arrest, said method comprising: pressing an applicator body against the patient's chest at a location over the sternum to compress the chest; lifting the applicator to actively expand the patient's chest, wherein a lower surface of the applicator adheres to the chest at said location over the sternum; detecting the patient's electrocardiographic pattern through an electrode in the lower surface of the applicator; and alternating the pressing and lifting steps so that each pressing step will last in the range from about 0.2 to 0.7 seconds and each lifting step will last in the range from about 0.2 to 0.7 seconds until the patient's heartbeat and respiration are restored.
Claim 23
Dependent Claim
20 words
A method as in claim 17, wherein a performer manually presses and lifts an upper surface of the applicator body.
Claim 24
Dependent Claim
20 words
A method as in claim 18, wherein at least one of the performer's hands is secured to the upper surface.
Claim 25
Dependent Claim
25 words
A method as in claim 18, wherein a performer manually presses and lifts the applicator body using a handle attached to an upper surface thereof.
Claim 26
Dependent Claim
17 words
A method as in claim 17, wherein the applicator is pressed and lifted using a mechanical reciprocator.
Claim 27
Dependent Claim
12 words
A method as in claim 21, wherein the mechanical reciprocator is powered.
Claim 28
Dependent Claim
29 words
A method as in claim 17, wherein the electrode is interconnected through a connector on the applicator to an electrocardiogram monitor to produce the electrocardiograph pattern through said electrode.
Claim 29
Independent Claim
122 words
A method for simultaneously resuscitating and defibrillating a patient suffering cardiac arrest, said method comprising: pressing an applicator body against the patient's chest at a location over the sternum to compress the chest; lifting the applicator to actively expand the patient's chest, wherein a lower surface of the applicator adheres to the chest at said location over the sternum; applying a current to the patient's chest through an electrode in the lower surface to effect defibrillation; and alternating the pressing and lifting steps so that each pressing step will last in the range from about 0.2 to 0.7 seconds and each lifting step will last in the range from about 0.2 to 0.7 seconds until the patient's heartbeat and respiration are restored.
Claim 30
Independent Claim
122 words
A method for simultaneously resuscitating and defibrillating a patient suffering cardiac arrest, said method comprising: pressing an applicator body against the patient's chest at a location over the sternum to compress the chest; lifting the applicator to actively expand the patient's chest, wherein a lower surface of the applicator adheres to the chest at said location over the sternum; applying a current to the patient's chest through an electrode in the lower surface to effect defibrillation; and alternating the pressing and lifting steps so that each pressing step will last in the range from about 0.2 to 0.7 seconds and each lifting step will last in the range from about 0.2 to 0.7 seconds until the patient's heartbeat and respiration are restored.
Claim 31
Dependent Claim
20 words
A method as in claim 24, wherein a performer manually presses and lifts an upper surface of the applicator body.
Claim 32
Dependent Claim
20 words
A method as in claim 25, wherein at least one of the performer's hands is secured to the upper surface.
Claim 33
Dependent Claim
25 words
A method as in claim 25, wherein a performer manually presses and lifts the applicator body using a handle attached to an upper surface thereof.
Claim 34
Dependent Claim
17 words
A method as in claim 24, wherein the applicator is pressed and lifted using a mechanical reciprocator.
Claim 35
Dependent Claim
12 words
A method as in claim 28, wherein the mechanical reciprocator is powered.
Claim 36
Dependent Claim
29 words
A method as in claim 24, wherein the electrode is interconnected through a connector on the applicator to electrical defibrillation equipment to pass an electric current through said electrode.
Claim 37
Independent Claim
120 words
A method for performing cardiopulmonary resuscitation of a patient suffering cardiac arrest and apnea, said method comprising: pressing an applicator body against the patient's sternum to compress the patient's chest, wherein sufficient pressure is applied to the sternum to compress the chest in the range from about 3.5 to 5 cm; lifting the applicator to actively expand the patient's chest wherein a lower surface of the applicator adheres to the patient's chest, the lower surface having a circular periphery with a diameter in the range from about 3 to 20 cm; and alternating the pressing and lifting steps at a rate in the range from about 80 to 100 repetitions per minute until the patient's heartbeat and respiration are restored.
Claim 38
Independent Claim
120 words
A method for performing cardiopulmonary resuscitation of a patient suffering cardiac arrest and apnea, said method comprising: pressing an applicator body against the patient's sternum to compress the patient's chest, wherein sufficient pressure is applied to the sternum to compress the chest in the range from about 3.5 to 5 cm; lifting the applicator to actively expand the patient's chest wherein a lower surface of the applicator adheres to the patient's chest, the lower surface having a circular periphery with a diameter in the range from about 3 to 20 cm; and alternating the pressing and lifting steps at a rate in the range from about 80 to 100 repetitions per minute until the patient's heartbeat and respiration are restored.
Claim 39
Independent Claim
127 words
A method for performing cardiopulmonary resuscitation of a patient suffering cardiac arrest and apnea, said method comprising: compressing the patient's chest sufficiently to induce blood circulation from the chest by manually pressing on a relatively rigid portion of an upper surface of a flexible cup having a hollow interior and a relatively resilient circular lower lip with a diameter in the range from about 3 to 20 cm, which lower lip is disposed against the patient's sternum resulting in a vacuum within the cup; actively expanding the patient's chest by manually lifting on the upper surface of the flexible cup, whereby the chest is raised by the vacuum to further induce blood circulation and ventilation; and alternating the compressing and expanding steps according to a preselected rhythm.
Claim 40
Independent Claim
127 words
A method for performing cardiopulmonary resuscitation of a patient suffering cardiac arrest and apnea, said method comprising: compressing the patient's chest sufficiently to induce blood circulation from the chest by manually pressing on a relatively rigid portion of an upper surface of a flexible cup having a hollow interior and a relatively resilient circular lower lip with a diameter in the range from about 3 to 20 cm, which lower lip is disposed against the patient's sternum resulting in a vacuum within the cup; actively expanding the patient's chest by manually lifting on the upper surface of the flexible cup, whereby the chest is raised by the vacuum to further induce blood circulation and ventilation; and alternating the compressing and expanding steps according to a preselected rhythm.
Claim 41
Independent Claim
130 words
A method for performing cardiopulmonary resuscitation of a patient suffering cardiac arrest and apnea, said method comprising: pressing an applicator body against the patient's sternum to compress the patient's chest, wherein sufficient pressure is applied to the sternum to compress the chest in the range from about 3.5 to 5 cm; lifting the applicator to actively expand the patient's chest wherein a lower surface of the applicator adheres to the patient's chest; and alternating the pressing and lifting steps at a rate in the range from about 80 to 100 repetitions per minute until the patient's heartbeat and respiration are restored; wherein the patient is lying on a flat surface, a performer kneels next to the patient, and the performer alternately presses and lifts and applicator using fully extended arms.
Claim 42
Independent Claim
130 words
A method for performing cardiopulmonary resuscitation of a patient suffering cardiac arrest and apnea, said method comprising: pressing an applicator body against the patient's sternum to compress the patient's chest, wherein sufficient pressure is applied to the sternum to compress the chest in the range from about 3.5 to 5 cm; lifting the applicator to actively expand the patient's chest wherein a lower surface of the applicator adheres to the patient's chest; and alternating the pressing and lifting steps at a rate in the range from about 80 to 100 repetitions per minute until the patient's heartbeat and respiration are restored; wherein the patient is lying on a flat surface, a performer kneels next to the patient, and the performer alternately presses and lifts and applicator using fully extended arms.
Claim 43
Independent Claim
121 words
A method for performing cardiopulmonary resuscitation of a patient suffering cardiac arrest and apnea, said method comprising: pressing an applicator body against the patient's sternum to compress the patient's chest, wherein sufficient pressure is applied to the sternum to compress the chest in the range from about 3.5 to 5 cm; lifting the applicator to actively expand the patient's chest wherein a lower surface of the applicator adheres to the patient's chest; and alternating the pressing and lifting steps at a rate in the range from about 80 to 100 repetitions per minute until the patient's heartbeat and respiration are restored; wherein the performer presses against and lifts upon a handle which is secured to an upper surface of the applicator.
Claim 44
Independent Claim
121 words
A method for performing cardiopulmonary resuscitation of a patient suffering cardiac arrest and apnea, said method comprising: pressing an applicator body against the patient's sternum to compress the patient's chest, wherein sufficient pressure is applied to the sternum to compress the chest in the range from about 3.5 to 5 cm; lifting the applicator to actively expand the patient's chest wherein a lower surface of the applicator adheres to the patient's chest; and alternating the pressing and lifting steps at a rate in the range from about 80 to 100 repetitions per minute until the patient's heartbeat and respiration are restored; wherein the performer presses against and lifts upon a handle which is secured to an upper surface of the applicator.
Claim 45
Dependent Claim
39 words
A method as in claim 34, wherein the applicator is a flexible cup and the performer grasps lateral extensions disposed symmetrically on the handle with each hand, wherein the handle is disposed at the center of the upper surface.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1998-10-02 | 1999-04-03 | 1999-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-02 | 2003-04-03 | 2003-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-02 | 2007-04-03 | 2007-10-03 | $7700.00 | Window Closed / Lapsed |