Positive displacement intravenous infusion pump device and method
First Claim
1. In a positive displacement infusion device for injecting a solution from a container through a discharge means into a patient, delivery means for introducing an incompressible material into said container to cause said solution stored therein to be displaced from said container through said discharge means in an amount proportional to the amount of incompressible material introduced into said container, said delivery means including control means for controlling introduction of said incompressible material into said container whereby solution is discharged from said container through said discharge means in a predetermined manner.
6 Assignments
0 Petitions
Accused Products
Abstract
A positive displacement intravenous infusion pump device and method are disclosed to precisely meter intravenous fluid to a patient. Intravenous fluid to be injected into the vein of a patient is placed in a closed rigid fluid container, and a variable (but fixed for each administration) quantity of incompressible material, stored in a separate receptacle, is introduced into the fluid container to cause displacement of fluid from the container to thereby inject the fluid into the vein of the patient. Introduction of incompressible material is controlled so that the intravenous fluid is injected in a controlled manner into the vein of the patient.
59 Citations
25 Claims
- 1. In a positive displacement infusion device for injecting a solution from a container through a discharge means into a patient, delivery means for introducing an incompressible material into said container to cause said solution stored therein to be displaced from said container through said discharge means in an amount proportional to the amount of incompressible material introduced into said container, said delivery means including control means for controlling introduction of said incompressible material into said container whereby solution is discharged from said container through said discharge means in a predetermined manner.
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11. A positive displacement intravenous infusion pump comprising:
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a closed container having a fluid therein to be intravenously fed to a patient; an inlet and an outlet leding to the interior of said container; injecting means for injecting said fluid into the vein of a patient; means connecting said outlet with said injection means for conveying fluid from said container through said outlet to said injection means; storage means for storing incompressible material; means connecting said storage means with said inlet for conveying incompressible material from said storage means to said container through said inlet; and control means for controlling delivery of said incompressible material to said container whereby fluid in said container is accurately injected into the vein of a patient having said injection means inserted therein. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method for positively displacing a solution from a container into a patient, said method comprising:
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introducing an incompressible material into said container to cause said solution in said container to be displaced therefrom and injected into a patient; and controlling introduction of said incompressible material into said container whereby said fluid is accurately injected into said patient in a predetermined manner. - View Dependent Claims (19, 20, 21, 22)
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23. A method for positively displacing fluid for intravenous feeding of a patient, said method comprising:
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providing a closed container having a predetermined amount of intravenous fluid therein; connecting said container with a discharge system for discharging fluid from said container into the vein of a patient; providing a storage receptacle; placing an incompressible material in said storage receptacle; delivering said incompressible material from said storage receptacle to said container to cause displacement of fluid from said container; and controlling delivery of said incompressible material from said receptacle to said container whereby said fluid is precisely metered into the vein of said patient. - View Dependent Claims (24, 25)
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Specification