Infusion pump, treatment fluid bag therefor, and method for the use thereof
First Claim
1. A collapsible fluid treatment bag useful in a infusion pump comprising:
- said collapsible treatment fluid bag;
an inflatable bladder juxtaposed with said treatment fluid bag;
means to vent said bladder;
means for impinging said bladder against said treatment fluid bag as said bladder is inflated;
means for electronically controlling the pressure of said bladder so as to collapse said treatment fluid bag and controllably expel treatment fluid therefrom; and
an outlet tube in fluid communication with said treatment fluid bag and said patient;
wherein said collapsible fluid treatment bag comprises;
an attached extension set; and
activator means capable of interacting with the means for electronically controlling the pressure of said bladder so as to enable said means for electronically controlling the pressure of said bladder to operate;
wherein said means for electronically controlling the pressure of said bladder is disabled in the absence of the activator means of said fluid treatment bag.
2 Assignments
0 Petitions
Accused Products
Abstract
An infusion pump for infusing a medical treatment fluid intravenously to a patient includes a collapsible treatment fluid bag juxtaposed with an inflatable drive fluid bladder confined between a pair of opposing containment members which cause the bladder to impinge against the bag as the bladder is inflated. A drive fluid pump controllably inflates the bladder, thereby displacing treatment fluid from the bag into an outlet tube affixed thereto which conveys the treatment fluid to the patient where it is received intravenously. The treatment fluid flow rate through the tube is controlled by increasing or decreasing the drive fluid pump output and consequently the pressure in the bladder in response to a pressure sensor in fluid communication with the bladder. Alternatively, the treatment fluid flow rate is adjusted by opening or closing the outlet tube by means of an occluder or restrictor positioned along the tube.
150 Citations
20 Claims
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1. A collapsible fluid treatment bag useful in a infusion pump comprising:
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said collapsible treatment fluid bag; an inflatable bladder juxtaposed with said treatment fluid bag; means to vent said bladder; means for impinging said bladder against said treatment fluid bag as said bladder is inflated; means for electronically controlling the pressure of said bladder so as to collapse said treatment fluid bag and controllably expel treatment fluid therefrom; and an outlet tube in fluid communication with said treatment fluid bag and said patient;
wherein said collapsible fluid treatment bag comprises;an attached extension set; and activator means capable of interacting with the means for electronically controlling the pressure of said bladder so as to enable said means for electronically controlling the pressure of said bladder to operate;
wherein said means for electronically controlling the pressure of said bladder is disabled in the absence of the activator means of said fluid treatment bag. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification