Automated ventilation, CPR, and circulatory assistance apparatus
First Claim
1. An apparatus for assisting and reproducing the pulmonary and cardiac functions of a patient, said apparatus comprising:
- an airway apparatus constructed so as to be placed during use in proximity to the patient'"'"'s airway to provide fluid communication with the patient'"'"'s lungs;
a vest constructed so as to be secured during use about the portion of the patient'"'"'s body in the region of the thorax, said vest including an inflatable bladder that overlies the patient'"'"'s chest;
an abdominal restraint constructed so as to be secured during use about the portion of the patient'"'"'s body immediately below the thorax, said abdominal restraint including an inflatable bladder that overlies the patient'"'"'s abdomen; and
,control means that is in fluid communication with said airway apparatus, said vest bladder, and said abdominal restraint bladder, said control means being operable to alternately inflate and deflate, in substantial synchronism, said vest bladder, said abdominal restraint bladder, and the patient'"'"'s lungs through said airway apparatus.
2 Assignments
0 Petitions
Accused Products
Abstract
An automated ventilation, CPR and circulatory assistance apparatus includes an airway apparatus 10, a vest 12 including an inflatable bladder 18, and an abdominal restraint 14 including an inflatable bladder 22. An airway pneumatic control apparatus 84, a vest pneumatic control apparatus 86, and an abdominal restraint pneumatic control apparatus 88 are in fluid communication with the airway apparatus, the vest bladder, and the abdominal restraint bladder, respectively, and responsive to respective first and second states in an airway control signal AWC, a vest control signal VC, and an abdominal restraint control signal ARC to alternately inflate and deflate the patient'"'"'s lungs, the vest bladder, and the abdominal restraint bladder, respectively. Provision is made for selectively adjusting the volume of gas that is coupled to the patient'"'"'s lungs, and the maximum pressures that are obtained in the vest bladder and the abdominal restraint bladder. An electronic control means (FIGS. 5 and 6) permits selection of ventilation, CPR and circulatory assistance modes of operation, and is adapted to control lung, vest bladder and abdominal restraint bladder inflation and deflation during each mode by selectively controlling the respective times of the first and second states in each of the airway, vest and abdominal restraint control signals.
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Citations
42 Claims
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1. An apparatus for assisting and reproducing the pulmonary and cardiac functions of a patient, said apparatus comprising:
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an airway apparatus constructed so as to be placed during use in proximity to the patient'"'"'s airway to provide fluid communication with the patient'"'"'s lungs; a vest constructed so as to be secured during use about the portion of the patient'"'"'s body in the region of the thorax, said vest including an inflatable bladder that overlies the patient'"'"'s chest; an abdominal restraint constructed so as to be secured during use about the portion of the patient'"'"'s body immediately below the thorax, said abdominal restraint including an inflatable bladder that overlies the patient'"'"'s abdomen; and
,control means that is in fluid communication with said airway apparatus, said vest bladder, and said abdominal restraint bladder, said control means being operable to alternately inflate and deflate, in substantial synchronism, said vest bladder, said abdominal restraint bladder, and the patient'"'"'s lungs through said airway apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An apparatus for assisting and reproducing the pulmonary and cardiac functions of a patient, said apparatus comprising:
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an airway apparatus constructed so as to be placed during use in proximity to the patient'"'"'s airway to provide fluid communication with the patient'"'"'s lungs; a vest constructed so as to be secured during use about the portion of the patient'"'"'s body in the region of the thorax, said vest including an inflatable bladder that overlies the patient'"'"'s chest; an abdominal restraint constructed so as to be secured during use about the portion of the patient'"'"'s body immediately below the thorax, said abdominal restraint including an inflatable bladder that overlies the patient'"'"'s abdomen; and
,control means that is in fluid communication with said airway apparatus, said vest bladder, and said abdominal restraint bladder, and with a source of gas at a positive pressure above atmospheric pressure and a source of gas as substantially atmospheric pressure, said control means including; airway pneumatic control means in fluid communication with said airway apparatus and responsive to respective first and second states in an airway control signal to respectively inflate the patient'"'"'s lungs by coupling gas obtained from said source of gas at a positive pressure to said airway apparatus and deflate the patient'"'"'s lungs by coupling said airway apparatus to said source of gas at substantially atmospheric pressure; vest pneumatic control means in fluid communication with said vest bladder and responsive to respective first and second states in a vest control signal to respectively inflate said vest bladder by coupling gas obtained from said source of gas at a positive pressure to said vest bladder and deflate said vest bladder by coupling said vest bladder to said source of gas at substantially atmospheric pressure; abdominal restraint pneumatic control means in fluid communication with said abdominal restraint bladder and responsive to first and second states in an abdominal restraint control signal to respectively inflate said abdominal restraint bladder by coupling gas obtained from said source of gas at a positive pressure to said abdominal restraint bladder and deflate said abdominal restraint bladder by coupling said abdominal restraint bladder to said source of gas at substantially atmospheric pressure; and
,electronic control means supplying said airway control signal, said vest control signal, and said abdominal restraint control signal to said airway pneumatic control means, said vest pneumatic control means, and said abdominal restraint pneumatic control means, respectively, said electronic control means including means for measuring the heart rate of the patient and being operative to alternate said first and second states in said airway control signal at a predetermined ventilation rate, whereby the patient'"'"'s lungs are alternately inflated and deflated at said predetermined ventilation rate, and to alternate said first and second states in each of said vest and abdominal restraint control signals at a circulatory assistance rate related to the measured heart rate of the patient, whereby said vest bladder and said abdominal restraint bladder are each inflated and deflated at said circulatory assistance rate. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification