Apparatus for intravenous injection of liquids
First Claim
1. In an apparatus for the prolonged intravenous injection of liquid into the body of a patient from a flexible plastic flask having a discharge connection at one end with which one end of a flexible tube is connected, the tube, in turn, having a discharge terminal at its other end, the invention comprising:
- (a) a horizontally elongate four-sided rigid casing of a length, width and depth to recive the flask and having an open end through which the discharge end of the flask is accessible when the container is positioned lengthwise within the casing;
(b) means in the casing for applying pressure to the flask for collapsing the flask and expelling the liquid therefrom under pressure from the discharge terminal;
(c) a garment arranged to be worn by the patient having a horizontally extending open-ended pouch removably receiving the casing with the flask therein in a generally horizontal position with its discharge connection selectively accessible at the right or left end of the pouch, the garment being constructed to support the weight of the pouch from the shoulders of the patient when the patient'"'"'s torso is erect.
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Accused Products
Abstract
To replace the usual gravity apparatus for intravenous injection of fluid in the body, there is provided a portable casing into which the usual collapsible liquid-containing flask is placed between two separate panels, one or both of which are movable toward and away from the other. The separation of the plates is against the force of prestressed torsion springs and these springs force the plates together toward a closed position when they are released after the flask has been placed between them to apply pressure to the flask and expel the liquid from the flash through a flexible tube having a discharge terminal. An actuating extension attached to the movable plate or plates is arranged to releasably hold them in separated positions when a flash is being removed or inserted between them. A garment is provided in which this apparatus may be retained when the patient is ambulatory.
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Citations
18 Claims
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1. In an apparatus for the prolonged intravenous injection of liquid into the body of a patient from a flexible plastic flask having a discharge connection at one end with which one end of a flexible tube is connected, the tube, in turn, having a discharge terminal at its other end, the invention comprising:
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(a) a horizontally elongate four-sided rigid casing of a length, width and depth to recive the flask and having an open end through which the discharge end of the flask is accessible when the container is positioned lengthwise within the casing; (b) means in the casing for applying pressure to the flask for collapsing the flask and expelling the liquid therefrom under pressure from the discharge terminal; (c) a garment arranged to be worn by the patient having a horizontally extending open-ended pouch removably receiving the casing with the flask therein in a generally horizontal position with its discharge connection selectively accessible at the right or left end of the pouch, the garment being constructed to support the weight of the pouch from the shoulders of the patient when the patient'"'"'s torso is erect. - View Dependent Claims (2, 3)
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4. For use in the administration of liquid by intravenous injection and like sustained applications of liquids to a patient'"'"'s body at a controlled rate, the apparatus comprising:
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(a) a rigid flat-sided elongate casing of generally rectangular section with two confronting pressure panels extending lengthwise of the casing, at least one of which is movably contained entirely within the casing for movement toward the other to a closed position and away from the other to an open position, the panels providing effectively coextensive opposed surfaces of a length and width to provide between them when in an open position a cavity to receive a liquid filled collapsible plastic bag; (b) prestressed torsion spring means within the casing arranged to force the panels transversely of the long axis of the tubular casing when separated toward the closed position and, in so doing, expel the liquid from the plastic bag, the plastic bag having a flexible tube leading from one end thereof to a discharge terminal, and (c) means accessible at the exterior of the casing for releasably holding the panels in the open position against the pressure of the torsion springs. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. Apparatus for the intravenous injection of liquid into the body of a patient and similar uses, comprising a metal casing of externally fixed dimension providing:
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(a) a pair of confronting pressure plates having coextensive flat areas, at least one of said plates being hinged for movement from a generally parallel position close against the other to an open position sufficient to enable a collapsible flask to be received between and squeezed when placed between them; (b) torsion spring means within the casing for urging the plates into a position of parallelism; and (c) means accessible from the exterior of the casing for releasably holding the plates separated against the pressure of the torsion spring means. - View Dependent Claims (15)
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16. In an apparatus for the prolonged intravenous injection of liquid into the body of a patient from a flexible plastic flask having a discharge connection at one end with which a flexible tube is connected, the tube, in turn, having a discharge terminal at its other end, the invention comprising:
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(a) a horizontally elongate four-sided rigid casing having an opening at at least one end, the casing being of a length, width and depth to receive the flask containing the liquid to be dispensed therefrom to the body with the casing having an opening through one end through which the discharge terminal of the flask is accessible; (b) torsion spring actuated means within the casing for applying pressure to the flask therein to forcefully expel the liquid therefrom through the flexible tube to the discharge terminal; (c) a garment arranged to be positioned about the neck of the patient with a pouch open at each end removably receiving the casing with the flask therein in a generally horizontal position with the end of the flask having the tube connection selectively accessible at the right or left side of the patient with the flask at a level below the shoulders and above the thighs of the patient where it offers minimal impediment to movement of the patient'"'"'s arms or legs in walking. - View Dependent Claims (17, 18)
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Specification