Automatic dose infusion apparatus and method of controlling the same
First Claim
1. An automatic dose infusion apparatus, comprising:
- a housing having three compartments defined therein;
a medicinal substance storage chamber formed in the upper compartment of the housing for storing a medicinal substance pack;
a control chamber formed in the middle compartment of the housing while being disposed below the medicinal substance storage chamber, the control chamber including a button part for setting the infusion amount of medicinal substance and time intervals, an LCD for displaying setup information, and a circuit board with various circuit elements mounted thereto;
a driving chamber formed in the lower compartment of the housing while being disposed below the control chamber, the driving chamber including a pressure pump mounted therein for pumping the medicinal substance so that the medicinal substance can be discharged through a tube, the driving chamber serving to regulate the infusion of the medicinal substance by controlling the operation of the pressure pump;
a bolus switch connected to a prescribed position of one side of the housing via an electric cord for generating an additional medicinal substance infusion command signal; and
a tube extending from the inside of the driving chamber to the outside of the driving chamber for delivering the medicinal substance discharged from the medicinal substance pack to a needle.
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Accused Products
Abstract
An automatic dose infusion apparatus that electronically controls a medicinal substance storage chamber and a control chamber, electronically regulates infusion of the medicinal substance, and constantly maintains a prescribed amount of medicinal substance on the basis of the number of rotations of a motor. The automatic dose infusion apparatus comprises a housing having three compartments, a medicinal substance storage chamber formed in the upper compartment of the housing for storing a medicinal substance pack, a control chamber formed in the middle compartment of the housing, a driving chamber formed in the lower compartment of the housing, a bolus switch connected to the housing for generating an additional medicinal substance infusion command signal, and a tube extending from the inside of the driving chamber to the outside of the driving chamber for delivering the medicinal substance discharged from the medicinal substance pack to a needle.
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Citations
18 Claims
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1. An automatic dose infusion apparatus, comprising:
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a housing having three compartments defined therein;
a medicinal substance storage chamber formed in the upper compartment of the housing for storing a medicinal substance pack;
a control chamber formed in the middle compartment of the housing while being disposed below the medicinal substance storage chamber, the control chamber including a button part for setting the infusion amount of medicinal substance and time intervals, an LCD for displaying setup information, and a circuit board with various circuit elements mounted thereto;
a driving chamber formed in the lower compartment of the housing while being disposed below the control chamber, the driving chamber including a pressure pump mounted therein for pumping the medicinal substance so that the medicinal substance can be discharged through a tube, the driving chamber serving to regulate the infusion of the medicinal substance by controlling the operation of the pressure pump;
a bolus switch connected to a prescribed position of one side of the housing via an electric cord for generating an additional medicinal substance infusion command signal; and
a tube extending from the inside of the driving chamber to the outside of the driving chamber for delivering the medicinal substance discharged from the medicinal substance pack to a needle. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An automatic dose infusion apparatus, comprising:
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a housing having three compartments defined therein;
a medicinal substance storage chamber formed in the upper compartment of the housing for storing a medicinal substance pack;
a driving chamber for regulating infusion of the medicinal substance, the driving chamber including a pressure pump mounted therein for pumping the medicinal substance so that the medicinal substance can be discharged through a tube;
a bolus switch connected to a prescribed position of one side of the housing via an electric cord for generating an additional medicinal substance infusion command signal;
a tube extending from the inside of the driving chamber to the outside of the driving chamber for delivering the medicinal substance discharged from the medicinal substance pack to a needle; and
a check valve including a valve housing having one end connected to one middle end of the tube and the other end connected to the other middle end of the tube, and an opening and closing member mounted in the valve housing such that the opening and closing member can be moved vertically to regulate infusion of the medicinal substance, wherein the automatic dose infusion apparatus further comprises;
a membrane attached to a lower supporting surface of the check valve such that the membrane can be expanded or contracted by the pressure inside the valve housing;
a block-detecting sensor disposed below the membrane for detecting blockage of the tube, the block-detecting sensor generating a high signal when the membrane is expanded;
a door-detecting sensor mounted to the inner wall of the housing for detecting whether the hinged cover is closed or not, the door-detecting sensor generating a high signal when the door is closed;
an air-detecting sensor disposed below the tube for detecting whether or not air is contained in the medicinal substance passing through the tube, the air-detecting sensor generating a high signal when only medicinal substance passes through the tube and the air-detecting sensor generating a low signal when medicinal substance containing air therein passes through the tube; and
a control unit for performing a control operation so that the operation of the pressure pump is stopped when a signal detected by means of the block-detecting sensor, the door-detecting sensor, or the air-detecting sensor is abnormal. - View Dependent Claims (8, 9, 10)
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11. An automatic dose infusion apparatus, comprising:
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a button unit including a mode selection button for selecting an injection mode so that a prescribed amount of medicinal substance can be automatically infused into a patient, a start/stop button for starting or stopping infusion of the medicinal substance, and an adjustment button for increasing or decreasing the infusion amount of the medicinal substance;
a bolus switch for performing additional self-infusion of the medicinal substance in a patient controlled analgesia (PCA) mode;
a door-detecting sensor for detecting whether the cover that securely locates a tube and accommodates the tube is closed or not;
an air-detecting sensor for detecting whether air is contained in the tube or not;
a block-detecting sensor for detecting whether the tube is blocked or not;
a motor for actuating a pressure pump, and a motor-driving unit for driving the motor;
an LCD for displaying information, such as the mode selected by means of the button unit, the adjusted amount of the medicinal substance, and infusion start/stop status, so that the patient can easily recognize the information; and
an LCD-driving unit for driving the LCD, wherein the automatic dose infusion apparatus further comprises;
an encoder for detecting the number of rotations of the motor;
a buzzer for informing an abnormality of infusion of the medicinal substance, and a buzzer-driving unit for driving the buzzer;
a data storage unit for storing medicinal substance infusion algorithms according to a continuous infusion mode, a patient controlled analgesia (PCA) mode, an intermittent infusion mode, a total parenteral nutrition (TPN) infusion mode, and a multi-step infusion mode; and
a control unit for receiving a signal according to the input of each button of the button unit to perform an algorithm according to the corresponding mode previously stored in the data storage unit, detecting the number of rotations of the motor in the infusion mode to control the operation of the motor, receiving the detected signal from each sensor to determine whether an abnormality is present or not, stopping the operation of the motor and operating the buzzer when the abnormality is present, so that infusion of the medicinal substance can be safely and accurately performed.
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12. A method of controlling an automatic dose infusion apparatus comprising the steps of:
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applying electric power to the automatic dose infusion apparatus;
performing an initial self-test;
performing an initial mode;
determining whether a prescribed mode is selected or not;
selecting an infusion mode;
preparing for the infusion mode;
performing infusion of medicinal substance;
informing that the infusion of medicinal substance will be stopped in approximately 10 minutes;
generating a stop code;
resetting flow rate of the medicinal substance during the operation of the automatic dose infusion apparatus;
checking an error in connection with the operation of a motor; and
stopping the infusion of the medicinal substance. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification