Fluid deficit monitoring in a fluid management system
First Claim
Patent Images
1. A method of monitoring a fluid deficit in a fluid management system, the method comprising:
- measuring an initial weight held by a fluid supply container support, the fluid supply container support supporting a first fluid supply container;
measuring an initial weight held by a fluid collection container support, the fluid collection container support supporting a first fluid collection container;
calculating an initial reference total weight, the initial reference total weight including a sum of the initial weight held by the fluid supply container support and the initial weight held by the fluid collection container support;
supplying fluid from the first fluid supply container to a site, said site being a surgical site or a patient;
collecting at least some of the fluid from the site into the first fluid collection container;
measuring a first current weight held by the fluid supply container support;
measuring a first current weight held by the fluid collection container support;
calculating a first current total weight, the first current total weight including a sum of the first current weight held by the fluid supply container support and the first current weight held by the fluid collection container support; and
calculating a first fluid deficit by determining a difference between the first current total weight and the initial reference total weight.
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Abstract
Surgical fluid management systems and methods of operating surgical fluid management systems which may provide one or more functions associated with suction, irrigation, distention, deficit monitoring, infusion, fluid warming, and the like. Some example embodiments may include infra-red lamps arranged to heat fluid flowing through a disposable cartridge. Some example embodiments may provide a three-dimensional fluid path through the cartridge and/or multi-stage heating capabilities. Some example fluid management systems may be selectable between pressure control and flow control modes.
177 Citations
30 Claims
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1. A method of monitoring a fluid deficit in a fluid management system, the method comprising:
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measuring an initial weight held by a fluid supply container support, the fluid supply container support supporting a first fluid supply container; measuring an initial weight held by a fluid collection container support, the fluid collection container support supporting a first fluid collection container; calculating an initial reference total weight, the initial reference total weight including a sum of the initial weight held by the fluid supply container support and the initial weight held by the fluid collection container support; supplying fluid from the first fluid supply container to a site, said site being a surgical site or a patient; collecting at least some of the fluid from the site into the first fluid collection container; measuring a first current weight held by the fluid supply container support; measuring a first current weight held by the fluid collection container support; calculating a first current total weight, the first current total weight including a sum of the first current weight held by the fluid supply container support and the first current weight held by the fluid collection container support; and calculating a first fluid deficit by determining a difference between the first current total weight and the initial reference total weight. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of monitoring a fluid deficit in a fluid management system, the method comprising:
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measuring an initial weight held by a fluid supply container support, the fluid supply container support supporting at least one fluid supply container; measuring an initial weight held by a fluid collection container support, the fluid collection container support supporting at least one fluid collection container; calculating an initial reference total weight, the initial reference total weight including a sum of the initial weight held by the fluid supply container support and the initial weight held by the fluid collection container support; supplying fluid from the at least one fluid supply container to a site, said site being a surgical site or a patient; collecting at least some of the fluid from the site into the at least one fluid collection container; monitoring a current weight held by the fluid supply container support; monitoring a current weight held by the fluid collection container support; calculating a current total weight, the current total weight including a sum of the current weight held by the fluid supply container support and the current weight held by the fluid collection container support; and calculating a current fluid deficit by determining a difference between the current total weight and the initial reference total weight. - View Dependent Claims (15, 16, 17, 18)
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19. A method of operating a fluid management device comprising:
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calculating an initial reference total weight, the initial reference total weight including a sum of an initial weight of a fluid supply container and an initial weight of a fluid collection container; supplying fluid from the fluid supply container to a site, said site being a surgical site or a patient; collecting at least some of the fluid from the site into the fluid collection container; calculating a current total weight, the current total weight including a sum of a current weight of the fluid supply container and a current weight of the fluid collection container; and calculating a deficit by determining a difference between the current total weight and the initial reference total weight. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A method of monitoring fluid flow in a fluid management system, wherein fluid is supplied from at least one fluid supply container to a site, said site being a surgical site or a patient, the method comprising:
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generating a first electrical signal associated with a weight held by a fluid supply container support, the fluid supply container support supporting the at least one fluid supply container; generating a second electrical signal associated with a weight held by a fluid collection container support, the fluid collection container support supporting at least one fluid collection container, and determining a fluid deficit using the first and second electrical signals, including; calculating a difference between (1) an initial total system weight comprised of a sum of an initial weight held by the fluid supply container support and an initial weight held by the fluid collection container support and (2) a current total system weight comprised of a sum of a current weight held by the fluid supply container support and a current weight held by the fluid collection container support. - View Dependent Claims (26, 27, 28, 29, 30)
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Specification