FLUID ANALYZER AND ASSOCIATED METHODS
First Claim
1. A method for determining at least one patient parameter in a patient having a drain tube having a first end and a second end, said first end fitted into the patient chest cavity and a second end in fluid communication with a collection vessel, at least one of said collection vessel and said drain tube having a first pressure sensor sensing the pressure within at least one of (i) said drain tube in a location proximal to the collection vessel, and (ii) the collection vessel, and a second pressure sensor sensing the pressure within the drain tube at a location distal to the collection vessel, said method comprising the steps of:
- a. obtaining at least a first pressure value from said first pressure sensor and at least one first pressure value from said second pressure sensor; and
,b. calculating at least one patient parameter by the pressure values through a non-linear solver.
1 Assignment
0 Petitions
Accused Products
Abstract
Devices, computer readable programs and methods determine a patient parameter, including volume and/or flow rate of a fluid draining through a drain tube from a chest cavity of a patient, by using at least one pressure value at an end of the drain tube associated with a fluid collection canister and at least one pressure value within the drain tube at a location distant from the collection canister. The pressure values are processed with a non-linear solver to determine the patient parameter.
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Citations
56 Claims
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1. A method for determining at least one patient parameter in a patient having a drain tube having a first end and a second end, said first end fitted into the patient chest cavity and a second end in fluid communication with a collection vessel, at least one of said collection vessel and said drain tube having a first pressure sensor sensing the pressure within at least one of (i) said drain tube in a location proximal to the collection vessel, and (ii) the collection vessel, and a second pressure sensor sensing the pressure within the drain tube at a location distal to the collection vessel, said method comprising the steps of:
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a. obtaining at least a first pressure value from said first pressure sensor and at least one first pressure value from said second pressure sensor; and
,b. calculating at least one patient parameter by the pressure values through a non-linear solver.
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2. (canceled)
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3. (canceled)
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4. (canceled)
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5. (canceled)
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6. (canceled)
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8. (canceled)
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10. (canceled)
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11. (canceled)
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12. (canceled)
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13. (canceled)
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14. (canceled)
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15. (canceled)
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16. (canceled)
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17. (canceled)
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18. A computer readable program for determining at least one patient parameter, in a patient having said drain tube having a first end and a second end, said first end fitted into and/or establishing fluid communication with a patient'"'"'s chest cavity and a second end establishing fluidic communication with a collection vessel, at least one of the collection vessel and said drain tube having a first pressure sensor sensing the pressure within at least one of (i) said drain tube in a location proximal to the collection vessel and (ii) said collection vessel, and a second pressure sensor sensing the pressure within the drain tube at a location distal to the collection vessel, said computer readable program comprising instructions for a computer means having memory to:
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a. obtain a first pressure value from said first pressure sensor and a first pressure value from said second pressure sensor; and b. calculate at least one patient parameter by the pressure values through a non-linear solver.
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19. (canceled)
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20. (canceled)
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21. (canceled)
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22. (canceled)
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23. (canceled)
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26. (canceled)
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27. (canceled)
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28. (canceled)
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29. (canceled)
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30. (canceled)
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32. (canceled)
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33. A device for determining at least one patient parameter, in a patient having a drain tube having a first end and a second end, said first end fitted into and/or establishing fluid communication with the patient'"'"'s chest cavity, and a second end received in a collection vessel, said device comprising:
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a. a first pressure sensor constructed and arranged to sense the pressure within at least one of (i) the drain tube in a location proximal to the collection vessel and (ii) said collection vessel; b. a second pressure sensor constructed and arranged to sense the pressure within the drain tube at a location distal to the collection vessel; c. said first pressure sensor and said second pressure sensor constructed and arranged for being placed in signal communication with computing means having memory for; i. obtaining a first pressure value from said first pressure sensor and a first pressure value from said second pressure sensor; and ii calculating at least one patient parameter by the pressure values through a non-linear solver. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 53, 56)
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51. (canceled)
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52. (canceled)
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54. (canceled)
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55. (canceled)
Specification