Intravenous infusion apparatus
First Claim
1. An intravenous infusion system comprising a mechanical clamp for expelling an infusion liquid from a substantially rectangular, flexible bag containing said liquid, said bag being of a rectangular shape having a length and a width, with the length being greater than the width and having a port and spout for connection of an injection needle by a flexible tube at a first short side thereof and a perforated lug at a second short side thereof, said mechanical clamp comprising a pair of superposed, rectangular plates of a resilient material of a length greater than the length of said bag and of a width substantially co-extensive with the width of said bag in an emptied state of the bag, said plates being connected along first ends thereof by a hinge assembly and being provided along second ends thereof with an operating locking assembly, each of said two plates being divided into at least two sections by at least one longitudinally extending slot, said bag being configured to be placed between said two plates with its lug adjacent to said hinge assembly and with said port and spout adjacent said locking assembly, whereupon by closing said clamp over said bag by said locking assembly, positive pressure is applied to said bag to expel said liquid out through said port to said needle.
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Accused Products
Abstract
An intravenous infusion system is provided comprising (a) a mechanical clamp for expelling intravenous infusion liquids from a bag containing liquids; (b) a hollow tube connected to the mechanical clamp; and (c) a hollow needle connected to the hollow tube capable of being inserted into the vein of a patient requiring an intravenous infusion. The mechanical clamp comprises a pair of superposed members hingedly connected at one end thereof, each of the members normally being curved outwardly from the one end and diverging therefrom when in the normally opened position, the members having cooperating locking portions at the distal end, the members being formed of a rigid but resiliently deformable material, each of the members being divided into a plurality of sections by longitudinally extending slit portions, whereby when the bag is enclosed within the clamp and the locking portions are cooperatively engaged, the curvature of the members is reversed and a positive pressure is applied thereto to thereby expel the liquid from the bag.
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Citations
12 Claims
- 1. An intravenous infusion system comprising a mechanical clamp for expelling an infusion liquid from a substantially rectangular, flexible bag containing said liquid, said bag being of a rectangular shape having a length and a width, with the length being greater than the width and having a port and spout for connection of an injection needle by a flexible tube at a first short side thereof and a perforated lug at a second short side thereof, said mechanical clamp comprising a pair of superposed, rectangular plates of a resilient material of a length greater than the length of said bag and of a width substantially co-extensive with the width of said bag in an emptied state of the bag, said plates being connected along first ends thereof by a hinge assembly and being provided along second ends thereof with an operating locking assembly, each of said two plates being divided into at least two sections by at least one longitudinally extending slot, said bag being configured to be placed between said two plates with its lug adjacent to said hinge assembly and with said port and spout adjacent said locking assembly, whereupon by closing said clamp over said bag by said locking assembly, positive pressure is applied to said bag to expel said liquid out through said port to said needle.
Specification