Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Reexamination Certificate
1999-03-19
2001-04-17
Yasko, John D. (Department: 3763)
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
C604S065000, C604S066000
Reexamination Certificate
active
06217553
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a liquid medicine-prescribing apparatus for blood vessel injection. The present invention provides a fixed quantity of liquid medicine which can be prescribed without a bottle or a pack being placed at an upper position. The present invention also presents a constant quantity of liquid medicine to be prescribed at the time of blood vessel injection. The present invention is also directed to a control system for prescribing liquid medicine and a liquid medicine-prescribing system which can be used for a disposable purpose such as a small portable system which has replaceable parts.
2. Discussion of Related Art
Generally speaking, in the case of a liquid medicine, prescribing apparatus for blood vessel injection, a liquid medicine bottle is hung at an upper position and a liquid medicine is input into a blood vessel through a liquid medicine hose. However, using such a system, when a patient moves, a liquid medicine bottle also is required to move simultaneously. Also, when the liquid medicine bottle is hung on the upper position, portability is comprised. Also, using such a system causes inconvenience because the liquid medicine can be used only in a fixed place.
Accordingly, recently a device, which is designed for easily carrying as well as for being injected without placing a liquid medicine bottle at an upper position, has been developed. However, most of these devices use a method which uses a silicon tube, through which a liquid medicine is supplied by expansion pressure while a tube is being expanded, so a liquid medicine is input into the tube. These devices may also use a method which uses electric power using an adapter and a battery. In these latter devices a liquid medicine can be input into a liquid medicine hose while a multiple axis, which circulates a curved surface and moves sequentially along a curved surface, pressurizes sequentially a liquid medicine hose and inputs a liquid medicine. However, the disadvantage of the method which uses a tube is that there is some difference in prescribing a liquid medicine, since the beginning pressure of a tube which swelled differs from the last pressure of that tube. In the case of the method where a multiple axis moves sequentially by a curved surface, there are disadvantages in that it is impossible to repair the device due to the complexity of manufacturing process, and because of high cost it is impossible to use it for a disposable purpose.
SUMMARY OF THE INVENTION
Accordingly, in order to overcome such drawbacks in the conventional art, it is therefore an object of the present invention to provide a liquid medicine-prescribing apparatus for blood vessel injection, wherein a driving part, in which a motor controlled properly at the control system is accepted while being driven by an electric power of a battery, is designed to be mounted and separated by being accepted into a case. If a driving roller is rotated, a pressurized roller, which is formed on a driving roller, pressurizes a pressurized hose sequentially, which is wound at the outside of the driving roller in the driving part which can be turned on and off by the staring part of the driving part, at the state that is pressurized by a starting part, so a fixed quantity of liquid medicine can be prescribed. This kind of supply method increases the liquid medicine by proper control within a fixed time or the electric power of a battery is designed to be maintained for a long time in turning a motor on and off and prescribing a fixed quantity.
It is another object to provide the liquid medicine-prescribing apparatus for blood vessel injection wherein a fixed quantity of liquid medicine can be prescribed without a bottle or a pack being placed at an upper position, which includes liquid medicine, while a constant quantity of liquid medicine is being prescribed at the time of blood vessel injection.
It is still another object to provide a control system for prescribing liquid medicine and a liquid medicine-prescribing system which can be used for a disposable purpose like a small portable system and which can replace parts easily.
To achieve these and other advantages and in accordance with the purpose of the present invention, there is provided a liquid medicine-prescribing apparatus for blood vessel injection comprising the lowercase
10
which is combined with two lateral faces
10
a
,
10
b
, the running part
60
which has feed the means of liquid medicine and which is inserted to be mounted and removed into the reception space
24
formed by the cover plate
20
which is open and shut by the hinge
300
of lowercase
10
and an uppercase
30
which is open and shut by the hinge
21
of a cover plate
20
and on which the lowercase
10
is combined to be open and shut while forming the reception space
33
into which liquid medicine pack is accepted.
According to another aspect of the present invention, there is also provided a liquid medicine-prescribing control circuit, wherein, with a central processing unit having a reference value according to each step, divided are a normal conversion switch NOR SW for normal operation, a switch INJ SW by which a personal conversion switch PCA MODE SW determines prescribing amount by changed value according to each step, and a switch TM SW which determines prescribing time and connection is provided through an AND gate. A safety node LOCK SW for prohibiting a personal conversion switch from being operated is connected into an input edge. A detector, with which state of a battery can be detected at any time, is connected into a control part and, in case that a detected signal value is different from a set value which is already fixed, a motor control M/C, which controls the motor operated simultaneously by battery power and the buzzer which outputs a buzzer sound in order to inform outside of state, is connected with a battery.
According to another aspect of the present invention, there is also provided a liquid medicine-prescribing system comprising a step which halts all operation, in the case that, in order to make the motor to be rotated by the operation of the normal conversion switch and the personal conversion switch, the new input state waits and the battery is not enough to meet the reference value by determining whether the battery capacity is proper or not, a step which determines whether the personal conversion switch, with which the patient can increase prescribing amount of liquid medicine additionally when capacity of it is proper, had already been operated. That is, a step which determines whether it is PCA mode, a step which makes additional operation to be possible at the state that PCA mode is already input in the case that it is not required to clear it, and which determines whether existing input PCA mode should be cleared in case that it is set in PCA mode. Also provided is a step which has PCA mode, which is input already, cleared in case that it is required to clear, a step which is immediately in normal operation if a safety pin has been removed by confirming whether a safety pin was removed(or not) (by confirming whether a safety switch is OFF (or not) in order for a patient to make it impossible to increase liquid medicine at his discretion in case that PCA mode has been cleared), a step which provides normal operation according to a reference value, in case that a reference value for normal operation has not been changed after determining whether it is changed or not, by determining whether PCA switch starts working newly when a safety pin has not been removed when PCA switch did not work (when a personal conversion switch and a time switch did not provide the increase of capacity and time simultaneously or turned OFF), a step which works normally by a changed reference value by a normal conversion switch in case that a normal conversion switch is changed by a reference value, and a step which works in additional operation as well as normal operation under PCA mode, if an additional operation is performed by a cha
Lee Jong Woo
Oh Yong Suk
Ace Medical Co., Ltd.
McGuireWoods LLP
Yasko John D.
LandOfFree
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