초록 ▼

An external infusion device system for infusing a fluid into a patient, the system including a reusable infusion device housing, a gas power source and disposable reservoir. The disposable reservoir is insertable into the reusable infusion device housing to infuse the fluid into the patient. The gas

An external infusion device system for infusing a fluid into a patient, the system including a reusable infusion device housing, a gas power source and disposable reservoir. The disposable reservoir is insertable into the reusable infusion device housing to infuse the fluid into the patient. The gas power source is for generating a gas to expel the fluid from the fluid reservoir. The disposable reservoir includes a reservoir housing, a fluid reservoir, an outlet, a gas power source, an expansion chamber and a regulating valve assembly. The fluid reservoir is within the reservoir housing for containing the fluid to be infused into the patient. The outlet is in the reservoir housing and provides a path through which the fluid is expelled to be infused into the patient. The expansion chamber is disposed between the gas power source and the fluid reservoir to receive the gas from the gas power source. The expansion member expands into the fluid reservoir to expel the fluid from the fluid reservoir. The regulating valve assembly is disposed between the fluid reservoir and the outlet to set a predetermined threshold pressure that must be exceeded to permit fluid to be expelled from the fluid reservoir through the outlet. In preferred embodiments, the fluid to be infused is a medication. Also, the regulating valve assembly sets the predetermined threshold pressure at greater than 1.05 atmospheres.

대표청구항 ▼

1. An external infusion device system for infusing a fluid into a patient, the system comprising:a reusable infusion device housing; a gas power source for generating a gas to expel the fluid from a fluid reservoir; and a disposable reservoir that is insertable into the reusable infusion device hous

1. An external infusion device system for infusing a fluid into a patient, the system comprising:a reusable infusion device housing; a gas power source for generating a gas to expel the fluid from a fluid reservoir; and a disposable reservoir that is insertable into the reusable infusion device housing to infuse the fluid into the patient, wherein the disposable reservoir includes: a reservoir housing; a fluid reservoir within the reservoir housing for containing the fluid to be infused into the patient; an outlet in the reservoir housing through which the fluid is expelled to be infused into the patient; an expansion chamber disposed between the gas power source and the fluid reservoir to receive the gas from the gas power source and to expand into a part of the space occupied by the fluid reservoir to expel the fluid from the fluid reservoir; and a regulating valve assembly disposed between the fluid reservoir and the outlet to set a predetermined threshold pressure that must be exceeded to permit fluid to be expelled from the fluid reservoir through the outlet.