CPR barrier device

• US 6,691,703 B2
• Filed: 01/31/2001
• Issued: 02/17/2004
• Est. Priority Date: 01/31/2001
• Status: Expired due to Fees

• Current Assignee: Laerdal Medical Corporation
• Original Assignee: Laerdal Medical Corporation
• Inventors: Rosen, Mark, McKinney, Larry T., Serbinski, Andrew, Phillips, Sean Landis, Koc, Mirzat, Traut, James R., Cline, John G.
• Primary Examiner(s): Lo, Weilun
• Assistant Examiner(s): MITCHELL, TEENA KAY
• Application Number:
  US09/773,325
• Publication Number:
  US 20020100475A1
• Time in Patent Office: 1,112 Days
• Field of Search: 128/202.28, 128/202.29, 128/203.11, 128/205.24, 128/206.21, 128/206.26, 128/206.28, 128/207.12, 128/205.25, 128/206.24, D24/110.4, D24/110.5, 2/9, 220/6, 224/4, 224/8
• US Class Current: 128/203.11
• CPC Class Codes: A61M 16/0048 Mouth-to-mouth respiration teaching or training models G09B23/288
• CPC Class Codes: A61M 16/106 in a path

Abstract

A resuscitation device for providing a barrier between a rescuer and a patient requiring mouth-to-mouth resuscitation. This resuscitation device includes an inflatable portion which when inflated extends in the breathing direction between the rescuer and the patient so as to be placed around at least one breathing organ of the victim. An inflation member receives airflow from the rescuer to inflate the inflatable portion. In this resuscitation device, a valve assembly permits airflow from the rescuer to the patient and diverts the exhalation and body fluids of the patient from reaching the rescuer. An additional barrier member can also be provided for shielding the rescuer from the patient.

Claims

1. A resuscitation device for providing a barrier between a rescuer and a patient requiring mouth-to-mouth resuscitation comprising:

an inflatable portion which when inflated extends in the breathing direction between the rescuer and the patient so that an outer perimetral portion thereof is placed around at least one breathing organ of the patient;

inflation means for inflating said inflatable portion;

first valve means for permitting airflow from the rescuer to the patient and for preventing the exhalation and the bodily fluids of the patient from reaching the rescuer; and

barrier means for shielding the rescuer from the patient, said barrier means extending outwardly from said outer perirnetral portion of said inflatable portion.

2. The resuscitation device of claim 1 wherein said inflatable portion is formed of two sheets of flexible film to form an air chamber therebetween.

3. The resuscitation device of claim 2 wherein said air chamber when inflated forms a pillow-like member to be placed around the at least one breathing organ of the patient.

4. The resuscitation device of claim 2 wherein said inflation means includes second valve means for sealing said air chamber in its inflated condition.

5. The resuscitation device of claim 4 wherein said second valve means includes channel means for providing a conduit between said second valve means and said air chamber.

6. The resuscitation device of claim 5 wherein said channel means includes sealing means for providing an airtight seal to retain said inflatable portion in its said inflated condition and thereby prevent leakage of air from said inflatable portion.

7. The resuscitation device of claim 4 wherein said inflation means includes blowing means capable of extending through said channel means into said air chamber for blowing air from the rescuer into said air chamber to inflate said inflatable portion.

8. The resuscitation device of claim 7 wherein said blowing means is a tube member.

9. The resuscitation device of claim 4 wherein second valve means includes valve closing means which prevents air from escaping from said air chamber is inflated.

10. The resuscitation device of claim 9 wherein said valve closing means includes a pair of flexible flap members which close a valve opening to said air chamber upon sufficient back pressure in said air chamber.

11. The resuscitation device of claim 1 wherein said inflatable portion includes nostril closing assist means for assistance in pinching the nostrils of the patient to close the same.

12. The resuscitation device of claim 11 wherein said nostril closing assist means includes inflatable nose pinch elements which close inwardly upon the nostrils of the patient when the inflatable portion is inflated to assist the rescuer in restricting airflow through the nostrils.

13. The resuscitation device of claim 12 and further including positioning assist means for properly orienting the resuscitation device on the face of the patient.

14. The resuscitation device of claim 13 wherein said positioning means includes a tented portion provided between said nose pinch elements to cover the nose of the patient to properly orient the resuscitation device on the face of the patient.

15. The resuscitation device of claim 1 wherein said first valve means includes filter means for filtering fluid or foreign materials exhaled from the patient.

16. The resuscitation device of claim 15 wherein said filter means is made of a substantially opaque, porous material.

17. The resuscitation device of claim 15 wherein said filter means is secured to said first valve means by means of a filter retaining ring.

18. The resuscitation device of claim 1 wherein said first valve means includes a top housing and a bottom housing secured to one another.

19. The resuscitation device of claim 1 wherein said first valve means includes a flexible valve member for allowing air to flow from the rescuer to the patient but prevents exhalation and bodily fluids of the patient from reaching the rescuer.

20. The resuscitation device of claim 19 wherein said flexible valve member is a flexible diaphragm which is movable between a flexed condition, wherein ventilation from the rescuer to the patient is permitted, and an unflexed condition, wherein the exhalation and bodily fluids of the patient is blocked from reaching the rescuer.

21. The resuscitation device of claim 20 wherein in said unflexed condition of said flexible diaphragm, the exhalation of the patient is diverted through an exhalation diversion opening provided in said first valve means.

22. The resuscitation device of claim 21 wherein said first valve means includes covering means surrounding said exhalation diversion opening to shield the diverted patient exhalation from the rescuer.

23. The resuscitation device of claim 1 wherein said barrier means is flexibly attached to said inflatable portion.

24. The resuscitation device of claim 23 wherein said barrier means includes attachment means for attaching the resuscitation device to a body portion of the patient.

25. The resuscitation device of claim 1 wherein said inflation means extends generally perpendicular to the direction of exhalation of the patient.

26. A resuscitation device for providing a barrier between a rescuer and a patient requiring mouth-to-mouth resuscitation comprising:

an inflatable portion which when inflated extends in the breathing direction between the rescuer and the patient so as to be placed around at least one breathing organ of the patient, said inflatable portion having a generally centrally located opening therein; and

first valve means provided in said opening of said inflatable portion for permitting airflow from the rescuer to the patient and for preventing exhalation and bodily fluids of the patient from reaching the rescuer with said exhalation and bodily fluids of the patient being exhausted through openings provided in said first valve means.

27. The resuscitation device of claim 26 wherein said inflatable portion is formed of two sheets of flexible film to form an air chamber therebetween.

28. The resuscitation device of claim 27 wherein said air chamber when inflated forms a pillow-like member to be placed around the at least one breathing organ of the patient.

29. The resuscitation device of claim 26 wherein said inflatable portion includes nostril closing assist means for assistance in pinching the nostrils of the patient to close the same.

30. The resuscitation device of claim 29 wherein said nostril closing assist means includes inflatable nose pinch elements which extend inwardly so as to be in a position to pinch the nostrils of the patient when the inflatable portion is inflated to assist the rescuer in restricting air flow through the nostrils.

31. The resuscitation device of claim 30 and further including positioning means for properly orienting the resuscitation device on the face of the patient.

32. The resuscitation device of claim 31 wherein said positioning means includes a tented portion provided between said nose pinch elements to cover the nose of the patient to properly orient the resuscitation device on the face of the patient.

33. The resuscitation device of claim 26 wherein said first valve means includes filter means for permitting air to flow from the rescuer to the patient and for filtering exhalation or bodily fluids of the patient.

34. The resuscitation device of claim 33 wherein said filter means is made of a substantially opaque, porous material.

35. The resuscitation device of claim 26 wherein said first valve means includes a flexible diaphragm which is movable between a flexed condition, wherein ventilation from said rescuer is permitted to pass through said first valve means into the breathing organ of the patient, and an unflexed condition, wherein exhalation and bodily fluids of the patient is blocked from reaching the rescuer.

36. The resuscitation device of claim 35 wherein in said unflexed condition of said flexible diaphragm, the exhalation and bodily fluids of the patient are diverted through an exhalation diversion opening provided in said first valve means.

37. The resuscitation device of claim 36 wherein said first valve means includes covering means surrounding said exhalation diversion opening to shield the diverted patient exhalation and bodily fluids from the rescuer.

38. The resuscitation device of claim 26 wherein said first valve means has a contoured mouthpiece.

39. The resuscitation device of claim 26 and further including inflation means for inflating said inflatable portion which includes air receiving means for receiving airflow from the rescuer to inflate said inflatable portion.

40. The resuscitation device of claim 39 wherein said inflation means further includes second valve means which permits air to be received into said air chamber of said inflatable portion and prevents air from escaping from said air chamber when in its inflated condition.

41. The resuscitation device of claim 40 wherein said second valve means includes valve sealing means for providing an airtight seal to retain said inflatable portion in its said inflated condition and thereby prevent leakage of air from said inflatable portion.

42. The resuscitation device of claim 41 wherein said valve sealing means includes a pair of flexible flap members which close a valve opening to said air chamber upon sufficient back pressure created in said air chamber.

43. The resuscitation device of claim 40 wherein said second valve means includes means for releasing the pressure in said inflatable portion.

44. The resuscitation device of claim 26 and further comprising positioning assist means for properly orienting the resuscitation device on the face of the patient.

45. The resuscitation device of claim 44 wherein said positioning assist means includes a relief portion to conform to the nose of the patient to properly orient the resuscitation device on the patient.

46. The resuscitation device of claim 26 wherein said inflation means extends generally perpendicular to the direction of the exhalation of the patient.

47. The resuscitation device of claim 26 and further comprising barrier means for shielding the rescuer from the patient.

48. The resuscitation device of claim 47 wherein said barrier means is flexibly attached to said inflatable portion.

49. The resuscitation device of claim 47 wherein said barrier means is wider at a chin portion thereof than at a nose portion thereof.

50. The resuscitation device of claim 47 wherein said barrier means includes attachment means for attaching the resuscitation device to a body portion of the patient.

51. A resuscitation device for providing a barrier between a rescuer and a patient requiring mouth-to-mouth resuscitation comprising:

a ventilation/exhalation valve assembly for permitting airflow from the rescuer to the patient and for preventing exhalation and bodily fluids of the patient from reaching the rescuer, said valve assembly including a flexible diaphragm which is movable between a flexed condition, wherein ventilation from said rescuer is permitted to pass through said valve assembly into a breathing organ of the patient, and an unflexed condition, wherein exhalation and bodily fluids of the patient are blocked from reaching the rescuer and are exhausted through openings provided in said ventilation/exhalation valve assenibly.

52. The resuscitation device of claim 51 wherein said ventilation/exhalation valve assembly includes an exhalation diversion opening formed therein through which the exhalation and bodily fluids of the patient are diverted when the exhalation and bodily fluids of the patient are blocked by the flexible diaphragm when the flexible diaphragm is in its unflexed condition.

53. The resuscitation device of claim 52 wherein said ventilation/exhalation valve assembly includes covering means surrounding said exhalation diversion opening to shield the diverted patient exhalation and bodily fluids from the rescuer.

54. The resuscitation device of claim 53 wherein said covering means is in the form of a downwardly depending inverted U-shaped extension surrounding said exhalation diversion opening.

55. The resuscitation device of claim 51 wherein said ventilation/exhalation valve assembly is formed of an upper housing and a lower housing which are sealed with respect to each other by means of a projecting edge extending from said upper housing to close a gap formed between the upper and lower housings.

56. The resuscitation device of claim 51 wherein said ventilation/exhalation valve assembly includes an upper housing and a lower housing which are secured to one another.

57. The resuscitation device of claim 56 wherein said upper housing includes a plurality of downwardly depending legs which are engaged in respective spaced recesses provided along an inner circumferential surface of said lower housing to secure the upper housing to the lower housing.

58. The resuscitation device of claim 56 and further including means for supporting said flexible diaphragm within said ventilation/exhalation valve assembly.

59. The resuscitation device of claim 58 wherein said supporting means includes a circumferential flange depending downwardly from said upper housing which abuts against an upper surface of said flexible diaphragm to restrict upward movement of said flexible diaphragm when said flexible diaphragm in its unflexed condition.

60. The resuscitation device of claim 58 wherein said supporting means includes a diaphragm support and flexing assembly extending inwardly from a main cylindrical body of said lower housing.

61. The resuscitation device of claim 60 wherein said diaphragm support and flexing assembly includes peripheral confining means for aligning and confining an outer peripheral surface of the flexible diaphragm within said ventilation/exhalation valve member.

62. The resuscitation device of claim 61 wherein said peripheral confining means includes an arcuate rim section extending from said support and flexing assembly which confines and abuts the outer peripheral surface of said flexible diaphragm.

63. The resuscitation device of claim 60 wherein said diaphragm support and flexing assembly includes an inclined ramp member extending upwardly from said diaphragm support and flexing assembly which abuts against a bottom surface of said flexible diaphragm so as to provide a fulcrum point so that the flexible diaphragm can be flexed downwardly during ventilation by the rescuer.

64. The resuscitation device of claim 60 wherein said diaphragm support and flexing assembly includes a generally semi-circular projection extending therefrom on which the bottom surface of said flexible diaphragm is supported.

65. The resuscitation device of claim 56 wherein said ventilation exhalation valve assembly includes filter means for filtering fluid or foreign materials exhaled from the patient.

66. The resuscitation device of claim 65 wherein said filter means is made of a substantially opaque, porous material.

67. The resuscitation device of claim 64 and further including a filter retaining ring for securing the filter to the ventilation/exhalation valve member.

68. The resuscitation device of claim 67 wherein said filter retaining ring is secured to said lower housing.

69. A resuscitation device for providing a barrier between a rescuer and a patient requiring mouth-to-mouth resuscitation comprising:

an inflatable portion which when inflated extends in the breathing direction between the rescuer and the patient so as to be placed around at least one breathing organ of the patient wherein said inflatable portion includes nostril closing assist means for pinching the nostrils of the patient to close the same.

70. The resuscitation device of claim 69 wherein said nostril closing assist means includes inflatable nose pinch elements which pinch the nostrils of the patient when the inflatable portion is inflated to assist the rescuer in restricting airflow through the nostrils.

71. A resuscitation device for providing a barrier between a rescuer and a patient requiring mouth-to-mouth resuscitation comprising:

an inflatable portion which when inflated extends in the breathing direction between the rescuer and the patient so that an outer perimetral portion thereof is placed around at least one breathing organ of the patient, said inflatable portion having a central opening therein;

inflation means for inflating said inflatable portion;

filter means provided in said central opening for filtering fluid or foreign materials from being passed between the patient and the rescuer; and

barrier means for shielding the rescuer from the patient, said barrier means extending outwardly from said outer perimetral portion of said inflatable portion.

72. The resuscitation device of claim 71 wherein said filter means is made of a substantially opaque, porous material.

73. A resuscitation device for providing a barrier between a rescuer and a patient requiring mouth-to-mouth resuscitation comprising:

an inflatable portion inflatable between an uninflated condition, wherein said inflatable portion is capable of lying generally flat around at least one breathing organ of the patient, and an inflated condition, wherein said inflatable portion is inflated in the breathing direction between the rescuer and the patient so as to be placed around at least one breathing organ of the patient;

inflation means for inflating said inflatable portion from its uninflated condition to its said inflated condition;

first valve means for permitting airflow from the rescuer to the patient and for preventing the exhalation and bodily fluids of the patient from reaching the rescuer;

barrier means for shielding the rescuer from the patient; and

wherein the resuscitation device permits mouth-to-mouth resuscitation to occur in both the uninflated and inflated conditions of said inflatable portion.

74. A resuscitation device for providing a barrier between a rescuer and a patient requiring mouth-to-mouth resuscitation comprising:

an inflatable portion which when inflated extends in the breathing direction between the rescuer and the patient so as to be placed around at least one breathing organ of the patient, said inflatable portion having a central opening therein;

inflation means for inflating said inflatable portion from its uninflated condition to its inflated condition;

filter means provided in said central opening for filtering fluid or foreign materials being passed between the patient and the rescuer;

barrier means for shielding the rescuer from the patient; and

wherein the resuscitation device permits mouth-to-mouth resuscitation to occur in both the uninflated and inflated condition of said inflatable portion.

75. A resuscitation device for providing a barrier between a rescuer and a patient requiring mount-to-mouth resuscitation comprising:

an inflatable portion which when inflated extends in the breathing direction between the rescuer and the patient so as to be placed around at least one breathing organ of the patient; and

a ventilation/exhalation valve assembly for permitting airflow from the rescuer to the patient and for preventing exhalation and bodily fluids of the patient from reaching the rescuer as the exhalation and bodily fluids of the patient are exhausted through openings provided in the ventilation/exhalation valve assembly, said ventilation/exhalation valve assembly including inflation means for inflating said inflatable portion.

76. A resuscitation device for providing a barrier between a rescuer and a patient requiring mouth-to-mouth resuscitation comprising:

an inflatable portion which when inflated extends in the breathing direction between the rescuer and the patient so as to be placed around at least one breathing organ of the patient, wherein said inflatable portion includes nostril closing assist means for assistance in pinching the nostrils of the patient to close the same;

inflation means for inflating said inflatable portion;

first valve means for permitting airflow from the rescuer to the patient and for preventing the exhalation and the bodily fluids of the patient from reaching the rescuer; and

barrier means for shielding the rescuer from the patient.

77. The resuscitation device of claim 76 wherein said nostril closing assist means includes inflatable nose pinch elements which close inwardly upon the nostrils of the patient when the inflatable portion is inflated to assist the rescuer in restricting airflow through the nostrils.

78. The resuscitation device of claim 77 and further including positioning assist means for properly orienting the resuscitation device on the face of the patient.

79. The resuscitation device of claim 78 wherein said positioning means includes a tented portion provided between said nose pinch elements to cover the nose of the patient to properly orient the resuscitation device on the face of the patient.

80. A resuscitation device for providing a barrier between a rescuer and a patient requiring mouth-to-mouth resuscitation comprising:

an inflatable portion which when inflated extends in the breathing direction between the rescuer and the patient so as to be placed around at least one breathing organ of the patient;

inflation means for inflating said inflatable portion;

first valve means for permitting airflow from the rescuer to the patient and for preventing the exhalation and the bodily fluids of the patient from reaching the rescuer, said first valve means including filter means for filtering fluid or foreign materials exhaled from the patient, said filter means being secured to said first valve means by means of a filter retaining ring; and

barrier means for shielding the rescuer from the patient.

81. A resuscitation device for providing a barrier between a rescuer and a patient requiring mouth-to-mouth resuscitation comprising:

an inflatable portion which when inflated extends in the breathing direction between the rescuer and the patient so as to be placed around at least one breathing organ of the patient, said inflatable portion having a generally centrally located opening therein, said inflatable portion including nostril closing assist means for assistance in pinching the nostrils of the patient to close the same; and

first valve means provided in said opening of said inflatable portion for permitting airflow from the rescuer to the patient and for preventing exhalation and bodily fluids of the patient from reaching the rescuer.

82. The resuscitation device of claim 81 wherein said nostril closing assist means includes inflatable nose pinch elements which extend inwardly so as to be in a position to pinch the nostrils of the patient when the inflatable portion is inflated to assist the rescuer in restricting air flow through the nostrils.

83. The resuscitation device of claim 82 and further including positioning means for properly orienting the resuscitation device on the face of the patient.

84. The resuscitation device of claim 83 wherein said positioning means includes a tented portion provided between said nose pinch elements to cover the nose of the patient to properly orient the resuscitation device on the face of the patient.

85. A resuscitation device for providing a barrier between a rescuer and a patient requiring mouth-to-mouth resuscitation comprising:

an inflatable portion which when inflated extends in the breathing direction between the rescuer and the patient so as to be placed around at least one breathing organ of the patient said inflatable portion having a generally centrally located opening therein;

inflation means for inflating said inflatable portion which includes air receiving means for receiving airflow from the rescuer to inflate said inflatable portion; and

first valve means provided in said opening of said inflatable portion for permitting airflow from the rescuer to the patient and for preventing exhalation and bodily fluids of the patient from reaching the rescuer.

86. The resuscitation device of claim 85 wherein said inflation means further includes second valve means which permits air to be received into said air chamber of said inflatable portion and prevents air from escaping from said air chamber when in its inflated condition.

87. The resuscitation device of claim 86 wherein said second valve means includes valve sealing means for providing an airtight seal to retain said inflatable portion in its said inflated condition and thereby prevent leakage of air from said inflatable portion.

88. The resuscitation device ofclaim 87 wherein said valve sealing means includes a pair of flexible flap members which close a valve opening to said air chamber upon sufficient back pressure created in said air chamber.

89. The resuscitation device of claim 86 wherein said second valve means includes means for releasing the pressure in said inflatable portion.

90. A resuscitation device for providing a barrier between a rescuer and a patient requiring mouth-to-mouth resuscitation comprising:

an inflatable portion which when inflated extends in the breathing direction between the rescuer and the patient so as to be placed around at least one breathing organ of the patient said inflatable portion having a generally centrally located opening therein;

first valve means provided in said opening of said inflatable portion for permitting airflow from the rescuer to the patient and for preventing exhalation and bodily fluids of the patient from reaching the rescuer; and

positioning assist means for properly orienting the resuscitation device on the face of the patient.

91. The resuscitation device of claim 90 wherein said inflation means extends generally perpendicular to the direction of the exhalation of the patient.

92. A resuscitation device for providing a barrier between a rescuer and a patient requiring mouth-to-mouth resuscitation comprising:

a ventilation/exhalation valve assembly for permitting airflow from the rescuer to the patient and for preventing exhalation and bodily fluids of the patient from reaching the rescuer, said valve assembly including a flexible diaphragm which is movable between a flexed condition, wherein ventilation from said rescuer is permitted to pass through said valve assembly into a breathing organ of the patient, and an unflexed condition, wherein exhalation and bodily fluids of the patient are blocked from reaching the rescuer, said ventilation/exhalation valve assembly including an exhalation diversion opening formed therein through which the exhalation and bodily fluids of the patient are diverted when the exhalation and bodily fluids of the patient are blocked by the flexible diaphragm when the flexible diaphragm is in its unflexed condition, said ventilation/exhalation valve assembly further including covering means surrounding said exhalation diversion opening to shield the diverted patient exhalation and bodily fluids from the rescuer, wherein said covering means is in the form of a downwardly depending inverted U-shaped extension surrounding said exhalation diversion opening.

93. A resuscitation device for providing a barrier between a rescuer and a patient requiring mouth-to-mouth resuscitation comprising:

a ventilation/exhalation valve assembly for permitting airflow from the rescuer to the patient and for preventing exhalation and bodily fluids of the patient from reaching the rescuer, said valve assembly including a flexible diaphragm which is movable between a flexed condition, wherein ventilation from said rescuer is permitted to pass through said valve assembly into a breathing organ of the patient, and an unflexed condition, wherein exhalation and bodily fluids of the patient are blocked from reaching the rescuer, said ventilation/exhalation assembly including an upper housing and a lower housing which are secured to one another, said upper housing including a plurality of downwardly depending legs which are engaged in respective spaced recesses provided along an inner circumferential surface of said lower housing to secure the upper housing to the lower housing.

94. A resuscitation device for providing a barrier between a rescuer and a patient requiring mouth-to-mouth resuscitation comprising:

a ventilation/exhalation valve assembly for permitting airflow from the rescuer to the patient and for preventing exhalation and bodily fluids of the patient from reaching the rescuer, said valve assembly including a flexible diaphragm which is movable between a flexed condition, wherein ventilation from said rescuer is permitted to pass through said valve assembly into a breathing organ of the patient, and an unflexed condition, wherein exhalation and bodily fluids of the patient are blocked from reaching the rescuer, said ventilation/exhalation assembly including an upper housing and a lower housing which are secured to one another; and

means for supporting said flexible diaphragm within said ventilation/exhalation valve assembly, said supporting means including a diaphragm support and flexing assembly extending inwardly from a main cylindrical body of said lower housing, said diaphragm support and flexing assembly including a generally semi-circular projection extending therefrom on which the bottom surface of said flexible diaphragm is supported.

95. The resuscitation device of claim 94 and further including a filter retaining ring for securing the filter to the ventilation/exhalation valve member.

96. The resuscitation device of claim 95 wherein said filter retaining ring is secured to said lower housing.