Compression device enabling flexible solution containers to produce constant delivery rate
First Claim
1. A portable external compression device capable of pressing a solution through a flow moderator system for infusion at constant flow rate from a flexible solution container positioned therein comprising a pair of inflatable compartments enclosed in stiff casing disposed as to capture said flexible container therebetween, means to inflate said compartments so as to impose a constant pressure on said flexible container, and a flow moderator system adapted to be connected to an outlet of said flexible container.
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Accused Products
Abstract
A compression device, which enables standard-size flexible solution containers to infuse at a constant flow rate, comprises a rigid external casing, in combination with two leak-proof sacs inflatable by a low pressure gas, and a flow moderator system. The flexible solution container must be positioned evenly in-between the inflatable sacs in order to obtain constant delivery rate while discharging about 80% of its intended maximum content. Flow moderators connected in series with by-passes can provide flow rates in discrete steps. The disposable compression device is adaptable to drug infusion and fluid replenishment therapy.
59 Citations
12 Claims
- 1. A portable external compression device capable of pressing a solution through a flow moderator system for infusion at constant flow rate from a flexible solution container positioned therein comprising a pair of inflatable compartments enclosed in stiff casing disposed as to capture said flexible container therebetween, means to inflate said compartments so as to impose a constant pressure on said flexible container, and a flow moderator system adapted to be connected to an outlet of said flexible container.
Specification