Pressurizable fluid supply apparatus
First Claim
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1. A pressurizable fluid supply apparatus for supplying an infusion fluid during a surgical treatment, the pressurizable fluid supply apparatus comprising:
- a bag to hold the infusion fluid, the bag comprising a fluid outflow interface;
an inflatable bladder positioned adjacent to the bag, the inflatable bladder being fillable to inflate from a first condition having a first volume to a second condition having a second volume, the inflatable bladder comprising;
a plurality of chambers positioned in series, each successive chamber of the plurality of chambers being smaller in size than the immediately preceding chamber;
adjacent chambers being separated by dividers, the dividers configured to selectively allow fluid flow between adjacent chambers, such that each successive chamber of the plurality of chambers fills after a pressure in the preceding chamber reaches a threshold, thereby squeezing the bag in a controlled manner from a first end of the bag to a second end of the bag; and
a pressure inlet positioned at a top of the inflatable bladder.
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Abstract
A pressurizable fluid supply apparatus may include a bag to hold a fluid. The bag may include a fluid outflow interface and a bladder positioned adjacent to the bag. The bladder may include a plurality of chambers positioned vertically in series. Adjacent chambers may be separated by dividers. The dividers may be configured to allow fluid flow between adjacent chambers under specified conditions. The bladder may further include a pressure inlet positioned at a top of the bladder.
14 Citations
14 Claims
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1. A pressurizable fluid supply apparatus for supplying an infusion fluid during a surgical treatment, the pressurizable fluid supply apparatus comprising:
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a bag to hold the infusion fluid, the bag comprising a fluid outflow interface; an inflatable bladder positioned adjacent to the bag, the inflatable bladder being fillable to inflate from a first condition having a first volume to a second condition having a second volume, the inflatable bladder comprising; a plurality of chambers positioned in series, each successive chamber of the plurality of chambers being smaller in size than the immediately preceding chamber;
adjacent chambers being separated by dividers, the dividers configured to selectively allow fluid flow between adjacent chambers, such that each successive chamber of the plurality of chambers fills after a pressure in the preceding chamber reaches a threshold, thereby squeezing the bag in a controlled manner from a first end of the bag to a second end of the bag; anda pressure inlet positioned at a top of the inflatable bladder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A fluid delivery system comprising:
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a pressure source; a fluid infusion line; a pressurizable fluid supply apparatus comprising; a bag to hold a fluid, the bag comprising a fluid outflow interface that is connectable to the fluid infusion line; a bladder positioned adjacent to the bag, the bladder comprising; a plurality of chambers positioned in series, each successive chamber of the plurality of chambers being smaller in size than the immediately preceding chamber;
adjacent chambers of the plurality of chambers being separated by dividers configured to selectively allow fluid flow between adjacent chambers, such that each successive chamber of the plurality of chambers fills after a pressure in the preceding chamber reaches a threshold, thereby squeezing the bag in a controlled manner from a first end of the bag to a second end of the bag; anda pressure inlet positioned at a top of the bladder, the pressure inlet being connectable to the pressure source; and a receptacle adapted to receive the pressurizable fluid supply apparatus. - View Dependent Claims (10, 11, 12)
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13. A method comprising:
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connecting a fluid outflow interface of a fluid-filled bag to a fluid infusion line; connecting a pressure inlet of a bladder to a pressure source, the bladder comprising a plurality of chambers positioned in series, adjacent chambers being separated by dividers, each successive chamber of the plurality of chambers being smaller in size than the immediately preceding chamber;
the dividers configured to selectively allow fluid flow between adjacent chambers, such that each successive chamber of the plurality of chambers fills after a pressure in the preceding chamber reaches a threshold, thereby squeezing the bag in a controlled manner from a first end of the bag to a second end of the bag; andwith fluid from the pressure source, inflating the bladder such that the bladder presses the fluid-filled bag against a wall to press fluid from the bag into the fluid infusion line. - View Dependent Claims (14)
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Specification