Variable volume bottle and related medical fluid infusion system
A technology for inputting systems and fluids, which can be used in control/regulation systems, medical containers, pharmaceutical packaging, etc., and can solve problems such as high cost
Inactive Publication Date: 2006-10-11
卡尔·长·东·空
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Problems solved by technology
While such drip sensors can provide accurate monitoring of fluid flow rate and cumulative volume infused into a patient, they are relatively sophisticated, costly devices and still disadvantageously rely on manual adjustment of traditional rolling clamps to Increase or decrease flow rate as needed
Method used
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[0023] As shown in the drawings, a medicinal fluid administration system shown generally at 10 in FIG. 1 includes a variable volume bottle 12 containing optional medicinal fluid 14 for administration to a patient 16 by intravenous infusion or the like. The input system includes an adjustable flow rate controller 18 to regulate the rate of fluid flow to the patient, and a flow sensing assembly 20 to monitor the fluid flow rate and the volume dispensed to the patient.
[0024] Fluid delivery system 10 is used to deliver selected medicinal fluids to a patient at a relatively slow, substantially trickle-like flow rate that can be variably set according to the particular medicinal fluid and patient needs. According to conventional fluid administration systems and methods, the medicinal fluid 14 is prepackaged so as to be conveniently mounted at a relatively high position relative to the patient 16, for example, on a standard pole or bracket 22, which 22 has a suitable bracket 24 to...
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A variable volume bottle and related system are provided for infusing a selected medical fluid to a patient. The variable volume bottle comprises a relatively rigid bottle body having a lower neck adapted for connection to an infusion line by a cap fitting having a slotted nipple for controlled flow of the medical fluid from the bottle and through the infusion line to the patient. The bottle body further includes a movable upper wall which descends as the fluid is delivered to the patient, and a flow sensor unit tracks displacement of the movable upper wall to provide an indication of the dispensed fluid volume. A flow rate controller may be provided for constricting the slotted nipple to variably adjust the open area defined by the slot therein, and thereby variably select the rate of fluid flow to the patient. In an alternative embodiment, the cap fitting may comprise a pair of interfitting cap members having a pair of overlapping flow ports formed therein, wherein the cap members are movably positioned with respect to each other to adjust the open area of an outlet passage defined by the flow ports and thereby variably select the rate of fluid flow to the patient.
Description
technical field [0001] The present invention generally relates to devices and systems for administering medicinal fluids to a patient by intravenous infusion or similar techniques. More particularly, the present invention relates to variable volume bottles for containing pharmaceutical fluids, wherein such bottles include improved means for monitoring the volume of fluid dispensed to a patient, and improved, relatively simplified A device for variably adjusting the rate of fluid flow to a patient. Background technique [0002] Fluid containers such as bottles and plastic bags are well known in the art for administering selected pharmaceutical fluids such as saline solution and the like to a patient, eg, intravenously. Such a container is generally mounted at a higher position relative to the patient and comprises a lower neck or the like, which is adapted to be connected to a section of infusion hose which in turn is connected to the patient by means of a catheter. In the ...
Claims
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IPC IPC(8): A61M5/168A61M37/00A61J1/05A61M5/00
CPCA61M5/16813A61M5/1685
Inventor 卡尔·长·东·空
Owner 卡尔·长·东·空