Device and method for the automatic initiation of an injection
First Claim
1. A system for automatically initiating an injection procedure for injection of a fluid medicament into a patient which comprises:
- a fluid delivery assembly having an injector for infusing a predetermined volume of the medicament into the patient;
a control element for setting a predetermined range of values of an operational parameter characteristic of the procedure and a first time interval “
Δ
t1”
;
a monitor electronically connected to the control element for detecting the operational parameter characteristic of the procedure;
a timer electronically connected to the monitor for observing the operational parameter characteristic of the procedure and determining whether the operational parameter characteristic stays within a predetermined range; and
an actuator connected to the fluid delivery assembly, and responsive to the timer, for initiating the injection procedure by the fluid delivery assembly at the expiration of the first time interval “
Δ
t1”
.
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Accused Products
Abstract
A system and method to automatically initiate an injection procedure of a medicament into a patient. In the system, a delivery assembly includes an injector for infusing the medicament into the patient. Further, the system includes a monitor for detecting a parameter characteristic of the procedure, for instance, a pressure indicative of a partial vacuum between the injector and the injection site, a pressure exerted by the patient against the delivery assembly, a conductance, a capacitance, or an optical blood reading. Also, the system includes a timer for determining compliance of the parameter within a predetermined range during a first time interval. In response to the timer, an actuator initiates the injection procedure at the expiration of the first time interval. Further, the actuator may stop the injection procedure if the parameter is outside the predetermined range during a second time interval.
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Citations
20 Claims
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1. A system for automatically initiating an injection procedure for injection of a fluid medicament into a patient which comprises:
-
a fluid delivery assembly having an injector for infusing a predetermined volume of the medicament into the patient; a control element for setting a predetermined range of values of an operational parameter characteristic of the procedure and a first time interval “
Δ
t1”
;a monitor electronically connected to the control element for detecting the operational parameter characteristic of the procedure; a timer electronically connected to the monitor for observing the operational parameter characteristic of the procedure and determining whether the operational parameter characteristic stays within a predetermined range; and an actuator connected to the fluid delivery assembly, and responsive to the timer, for initiating the injection procedure by the fluid delivery assembly at the expiration of the first time interval “
Δ
t1”
. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for automatically initiating and terminating an injection procedure for injection of a fluid medicament into a patient which comprises:
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a fluid delivery assembly having an injector for infusing a predetermined volume of the medicament into the patient; a control element for setting a first predetermined range of values of a first operational parameter characteristic and a second predetermined range of values of a second operational parameter characteristic of the procedure and a first time interval “
Δ
t1” and
a second time interval “
Δ
t2”
;a monitor electronically connected to the control element for detecting the first operational parameter characteristic and the second operational parameter characteristic of the procedure; a timer electronically connected to the monitor for observing the first operational parameter characteristic during the first time interval “
Δ
t1” and
the second operational parameter characteristic during the second time interval “
Δ
t2”
to determine whether the first operational parameter characteristic stays within the first predetermined range during the first time interval “
Δ
t1” and
whether the second operational parameter characteristic stays within the second predetermined range during the second time interval “
Δ
t2”
; andan actuator connected to the fluid delivery assembly, and responsive to the timer, for initiating the injection procedure by the fluid delivery assembly at the expiration of the first time interval “
Δ
t1” and
for terminating the injection procedure at the expiration of the second time interval “
Δ
t2”
. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method for automatically conducting an injection procedure for injection of a fluid medicament into a patient which comprises the steps of:
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providing a system including a fluid delivery assembly having an injector, a monitor, a timer electronically connected to the monitor, and an actuator responsive to the timer and connected to the fluid delivery assembly; setting the monitor with a first predetermined range of values of a first operational parameter characteristic of the procedure and a second predetermined range of values of a second operational parameter characteristic of the procedure; setting the timer with a first time interval “
Δ
t1” and
a second time interval “
Δ
t2”
;positioning the injector at an injection site on the patient; detecting with the monitor the first operational parameter characteristic of the procedure, wherein the detected first operational parameter is indicative of an interaction between the system and the patient beginning before infusion of the medicament into the patient; determining continued compliance of the first operational parameter at a value in a first predetermined range, during the first time interval “
Δ
t1”
;initiating with the actuator, in response to the determining step, the injection procedure by the fluid delivery assembly at the expiration of the first time interval “
Δ
t1” and
the immediate commencement of the second time interval “
Δ
t2”
; andinfusing with the injector a predetermined volume of the medicament into the patient during the injection procedure during the second time interval Δ
t2, wherein the injection procedure is stopped when the second time interval Δ
t2 expires. - View Dependent Claims (18, 19, 20)
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Specification