KR101624103B1

KR101624103B1 - Apparatus for supplying fixed qunatity transfusion

Info

Publication number: KR101624103B1
Application number: KR1020140118867A
Authority: KR
Inventors: 윤석신; 조병식
Original assignee: (주)세비카
Priority date: 2014-09-05
Filing date: 2014-09-05
Publication date: 2016-05-25
Also published as: KR20160029398A; WO2016035969A1

Abstract

More particularly, the present invention relates to a device for automatically supplying a predetermined amount of liquid irrespective of the amount of liquid or the position of the liquid, To a constant amount feeding device.
The apparatus for supplying a fixed amount of liquid according to the present invention includes a main body 110 having a driving motor 111 and a power supply unit 112 for supplying power to the driving motor. And
A fluid inlet 123a for receiving the fluid is formed at one side of the main body and a fluid outlet 123b for discharging the supplied fluid is formed at the other side of the main body, And a kit 120 provided with a transfer screw 122 for transferring the liquid inflow through the liquid inflow port to the liquid inflow port while being rotated toward the one side.

Description

[0001] APPARATUS FOR SUPPLYING QUANTITATIVE TRANSFUSION [0002]

More particularly, the present invention relates to a device for automatically supplying a predetermined amount of liquid irrespective of the amount of liquid or the position of the liquid, To a constant amount feeding device.

Generally, in order to continuously inject a fluid or an injection into the body, it is necessary to pressurize the fluid hose between the injection needle and the fluid hose which are connected to the fluid-containing hose and the fluid hose connected to the fluid- There is a need for a fluid supply device provided with a fluid control mechanism for controlling the amount of fluid.

However, such a conventional liquid supply device is applied to the principle that the liquid stored in the liquid container is injected into the body due to the relationship between the potential energy and the pressure in the blood vessel. Therefore, when the liquid container is placed at a high position or the patient is lying Although the supply of the fluid is smooth, the supply of fluid is not smooth when the position of the liquid container is low or when the patient is standing. In addition, when the amount of the liquid stored in the liquid container is large, the liquid is supplied smoothly because of the pressure inside the liquid container. However, as the amount of the liquid administered to the patient increases and the amount of liquid in the liquid container gradually decreases, The supply of fluid is not smooth. In severe cases, when the supply pressure of the fluid is lower than the blood pressure, not only the fluid is injected but also blood may be backflowed.

Therefore, the conventional liquid supply device has a great restriction on the patient's behavior, and it is necessary to constantly check the constantly changing liquid supply condition, periodically operate the liquid adjustment mechanism, or move the liquid container to a higher position, Careful attention and care of the caregiver are required such as keeping the condition smooth.

KR 10-2000-0021236 U

Disclosure of the Invention The present invention has been conceived to solve the problems described above. It is an object of the present invention to provide a constant amount of fluid that can be administered to a patient in a constant amount of time during a target time, irrespective of changes in the amount of fluid stored in the fluid container, The purpose of the device is to provide.

In order to achieve the above object, the present invention provides a fixed amount supply device for a liquid, comprising: a main body having a driving motor and a power supply unit for supplying power to the driving motor; And a transfer screw for transferring the liquid from the drive motor to the liquid discharge port while rotating to one side and transferring the liquid to the liquid discharge port, ; A case in which the kit is coupled to the main body, a cylinder mounted on the inside of the case and integrally connected to the fluid inflow port and the fluid inflow port on one side and the other side and the feed screw is vertically and tightly inserted, And an elastic coupling means provided on an upper portion of the conveyance screw so that the end of the rotation axis of the drive motor and the conveyance screw are elastically connected to each other; The elastic coupling means is coupled to the upper end of the rotation shaft of the conveying screw and has a vertical groove portion at the upper end thereof. The elastic member is vertically installed in the vertical groove portion of the socket. The elastic member is coupled to the upper portion of the socket, A lifting member engaging with an end portion of the driving shaft of the driving motor; a locking protrusion protruding from an outer circumferential surface of the lifting member; and a lifting / lowering member, which is formed long on the side wall of the socket so as to be fitted in the locking protrusion, And a fixed cap which is fixedly fitted to an upper portion of the cylinder while supporting an upper end of the socket and has a lift hole for a lift member formed at the center thereof so as to be stably formed and to guide the lift member from the socket .

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In addition, a protrusion is formed at the end of the rotation shaft of the driving motor, and a recessed portion engaging with the protrusion is formed at an upper end of the elevation member. The upper surface of the elevation member may be inclined downward toward the recess.

A cutout portion is formed at one side of the main body, a vertical rail portion is formed at one side of the cutout portion, and a vertical groove portion is slidably engaged with the vertical rail portion. So that it can be slidably coupled from below to above.

In addition, it is preferable that a contact protrusion closely adhered to the inner circumferential surface of the cylinder is formed on the lower outer circumferential surface of the socket, so that the liquid flowing into the cylinder through the fluid inflow portion does not flow back to the upper portion of the transfer screw.

In addition, the feed screw may be formed such that the pitch of the screw gradually decreases toward the liquid discharge portion.

In addition, it is preferable that the feed screw is formed such that the outer diameter of the shaft portion gradually increases toward the liquid discharge portion.

In addition, it is preferable that the liquid inlet and the liquid outlet are formed at positions which are not opened at the same time.

In addition, the fluid inflow portion is connected to a first infusion hose connected to the infusion container, and the fluid discharge portion is connected to a second infusion hose connected to the injection needle.

Preferably, the main body is provided with a display window for displaying the operation state of the drive motor and the feed screw in real time, a control unit for controlling the on / off operation of the drive motor and the rotation speed of the feed screw.

According to the present invention configured as described above, since the kit is provided between the saproline and the saphenous hose connecting the injection needle and the transfer screw for transferring the sap flowing into the kit through the sap inlet into the sap outlet, It is very easy to use because it is possible to administer a fixed amount of fluid to the patient at any time during the target time regardless of changes in the amount of the fluid stored in the fluid container or the position of the container in the container without a separate fluid control device There is an effect that can be improved.

FIG. 1 is a use state diagram of a liquid amount dispenser according to the present invention. FIG.
FIG. 2 is an exploded perspective view of a constant amount liquid supply device according to the present invention. FIG.
3 is a view showing an internal configuration of a main body constituting the present invention.
4 is an exploded perspective view of a kit constituting the present invention.
5 is a sectional view of the use state of the present invention.
6 is a perspective view showing a process of connecting a lifting member and a rotating shaft constituting the present invention.

The features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims are to be interpreted in accordance with the technical idea of the present invention based on the principle that the inventor can properly define the concept of the term in order to explain his invention in the best way. It must be interpreted in terms of meaning and concept.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. The same reference numerals are used for the same components, and only the different portions are described for the sake of clarity.

1 to 5, the present invention is largely composed of a main body 110 and a kit 120 detachably coupled to the main body 110. The main body 110 includes a liquid receiver A and an injection needle B, And a part of the flow path formed by the fluid hose C is formed.

The main body 110 includes a driving motor 111 and a power supply unit 112 for supplying power to the driving motor 111. The power supply unit 112 may be configured to supply power to the driving motor 111 from an external power supply. However, considering that the present invention is installed on one side of the liquid hose C, It is preferable that the drive motor 111 is configured to be internally supplied with power through a battery or an internal battery as shown in the drawing so as not to be restricted by the installation position.

The kit 120 detachably coupled to the main body 110 is formed with a fluid inlet 123a for receiving fluid from one side and a fluid outlet 123b for discharging the supplied fluid. The fluid inlet 123a is connected to the end of the first fluid hose C1 connected to the fluid container A and the fluid outlet 123b is connected to the end of the second fluid hose C2 connected to the injection needle B Lt; / RTI > A transfer screw 122 is installed in the kit 120 for transferring the fluid from the drive motor 111 to the fluid inlet 123a while rotating to one side and transferring the fluid flowing through the fluid inlet 123a to the fluid outlet 123b. do.

More specifically, the kit 120 includes cases 121a and 121b that are detachably coupled to the main body 110, and the transfer screws 122 are vertically and tightly inserted into the cases 121a and 121b. A cylinder 123 is provided. A fluid inflow port 123a is integrally connected to the side of the cylinder 123 and a fluid inflow port 123b is integrally connected to a lower portion of the cylinder 123. [

An upper end and a lower end of the conveying screw 122 are formed with an inlet groove 122a through which the sap flows from the sap inlet 123a and a drain groove 122b through which the sap transferred to the sap outlet 123b is discharged.

Therefore, since the liquid inlet 123a and the liquid outlet 123b are periodically opened for a predetermined period of time by the inlet groove 122a and the outlet groove 122b in the course of the rotation of the feed screw 122, Is supplied to the conveying screw 122 side and discharged from the conveying screw 122 side. At this time, the fluid inlet 123a and the fluid outlet 123b are formed at positions that are not opened at the same time. This is because when the rotation of the conveying screw 122 is inadvertently stopped, the liquid inlet 123a and the liquid outlet 123b simultaneously opened So that the blood does not flow back through the fluid outlet 123b and the fluid inlet 123a, which are continuously inserted into the patient or opened through the fluid inlet 123a.

4 to 6, the conveying screw 122 is formed of rubber or soft synthetic resin so as to be in close contact with the cylinder 123 and is inserted into the rotation shaft 122c And the upper end of the transfer screw 122 is elastically coupled to the end of the rotation shaft 111a of the drive motor 111 in the process of coupling the kit 120 to the main body 110. [ Means 130 are provided.

The lower end of the rotary shaft 122c of the feed screw 122 is rotatably inserted into the bottom of the cylinder 123 so that the feed screw 122 can maintain a stable posture in the cylinder 123. [

It is preferable that the feed screw 122 is formed such that the outer diameter D of the shaft portion of the screw 122d gradually increases as it approaches the liquid outlet 123b. As the shaft outer diameter D gradually increases, the height of the wing portion of the screw 122d gradually decreases. In addition, it is preferable that the pitch of the screw 122d gradually decreases as the feed screw 122 gets closer to the fluid outlet 123b. The reason why the pitch of the screw 122d is gradually narrowed as the outer diameter D of the shaft portion of the feed screw 122 gradually increases or gets closer to the liquid outlet 123b is that the feed pressure of the liquid passes through the liquid outlet 123b So that the transfer of the liquid can be surely performed without being influenced by the external pressure change.

A contact protrusion 131c is formed on the outer circumferential surface of the lower portion of the socket 131 so as to be brought into close contact with the inner circumferential surface of the cylinder 123. A liquid inflow into the cylinder 123 through the fluid inlet 123a is transferred to the upper portion of the transfer screw 122 So as not to flow out to the outside of the cylinder 123.

The elastic coupling means 130 includes a socket 131 coupled to an upper end of a rotation shaft 122c of the conveying screw 122 and having a vertical groove 131a at an upper end thereof and a vertical groove 131a, And a concave portion 133a which is coupled to the upper portion of the socket 131 through the elastic member 132 so as to be able to be lifted and lowered and is engaged with an end portion of the rotary shaft 111a of the driving motor 111, A lifting member 133 formed on an upper end of the lifting member 133 and a lifting member 133b protruding outward from the outer circumferential surface of the lifting member 133. The lifting member 133 is fixed to the side wall of the socket 131 so that the lifting member 133b can be fitted A guide hole 131b which is elongated in the vertical direction so as to guide the elevating member 133 so as to stably move up and down the elevating member 133 and not to be separated from the socket 131, And the upper end of the socket 123 is supported on the upper end of the cylinder 123 And a fixed cap 134 having a lift hole 134a for a lift member formed at the center thereof.

An inward bent portion 134b is formed at the lower end of the fixed cap 134 so that the fixed cap 134 can be easily and firmly fixed to the upper end of the cylinder 123, It is preferable that a step portion 123c protruding outwardly corresponding to the bent portion 134b is formed. In this case, the fixed cap 134 should be made of a stretchable material.

The concave portion 133a is formed at the upper end of the lifting member 133 and the protrusion 111b is formed at the end of the rotating shaft 111a of the driving motor 111. However, It is preferable that the upper end surface 133c of the elevating member 133 is formed to be inclined downward toward the recess 133a in order to engage with the smooth protrusion 131b.

2 and 3, the case 121a and 121b can receive the kit 120 at one side of the main body 110 to be slidably coupled to the main body 110 for convenience of use. And a vertical rail 113 is formed on one side of the cutout 110a and the vertical rail 113 is formed on one side of the cases 121a and 121b of the kit 120. [ The vertical grooves 124 may be formed to be slidably coupled along the vertical direction.

In addition, on the front surfaces of the cases 121a and 121b, a display window 110b for outputting the operating states of the drive motor 111 and the feed screw 122 in real time, an on / off operation of the drive motor 111, And a control unit 110c for adjusting the rotational speed of the screw 122. [

The thus configured liquid quantity dispenser of the present invention is used as follows.

The first fluid hose C1 connected to the fluid receptacle A is connected to the fluid inlet 123a formed in the kit 120 and the second fluid hose C1 connected to the injection needle B is connected to the fluid outlet 123b. C2 is connected to the cutout 110a of the main body 110 and then the kit 120 is positioned at the lower portion of the cutout 110a of the main body 110, The kit 120 is slidably engaged with the main body 110 while being fitted to the vertical rail part 113. [ The rotating shaft 111a of the driving motor 111 provided in the main body 110 and the feeding screws 122 provided in the kit 120 are coupled to each other.

When the kit 120 is coupled to the main body 110 as described above, the user operates the drive motor 111 using the control unit 110c provided on the front surface of the main body 110 and adjusts the rotation speed of the feed screw 122 Adjust the infusion rate of the liquid appropriately.

The mutual engagement of the drive motor 111 and the feed screw 122 is formed by the protrusion 111b formed at the end of the rotary shaft 111a of the drive motor 111 and the elevation member 133 provided at the upper end of the feed screw 122 The rotation shaft 122c and the elevating member 133 are free to rotate so that when the kit 120 is coupled to the main body 110 as shown in FIG. 6, The projected portion 111b formed at the end of the elevating member 122c and the recessed portion 133a formed at the shaft connecting portion of the elevating member 133 may not be correctly engaged.

When the recess 133a and the protrusion 111b are not correctly engaged with each other, the kit 120 is coupled to the main body 110 in a state where the lifting member 133 is pushed down by the end of the rotating shaft 111a, The rotation shaft 111a is rotated to naturally align the protrusion 111b and the recess 133a with each other. When the protrusion 111b and the concave portion 133a are aligned with each other, the pressing force applied to the lifting member 133 is removed and the lifted member 133 is lifted to the original position. The engaging of the protruding portion 111b is normally performed. At this time, when the upper end surface 133c of the lifting member 133 is inclined downward toward the concave portion 133a, the concave portion 133a and the convex portion 111b are engaged with each other very smoothly.

When the rotation shaft 111a of the driving motor 111 and the conveying screw 122 are normally engaged with each other, a rotational force is applied from the rotational axis 111a of the driving motor 111 to the conveying screw 122 at a speed set by the user, The liquid inflow port 123a is periodically opened and closed according to the rotation angle of the feed screw 122 and the liquid is supplied to the feed screw 122 only while the liquid inflow port 123a is opened. Since the interior of the cylinder 123 at this time is lower in pressure than the first fluid hose C1 due to the operation of the feed screw 122, the fluid flowing through the fluid inlet 123a flows into the cylinder 123, Regardless of the position of the container or the mounting position of the container.

Thus, the liquid introduced into the side of the conveying screw 122 is conveyed along the screw 122d to the liquid outlet 123b. At this time, if the pitch of the screw 122d is gradually reduced or the outer diameter D of the shaft portion of the feed screw 122 is gradually increased, the feed pressure to the liquid outlet 123b gradually increases as the feed pressure of the liquid gradually increases . Accordingly, the transferred liquid is smoothly transferred to the second liquid hose C2 through the liquid discharge port 123b without being stagnated or flowing backward in the cylinder 123 due to the weak transfer pressure during transfer.

Therefore, when the fixed amount supply device of the present invention is provided between the liquid hoses C connecting the liquid container A and the needles B, the amount of liquid stored in the liquid container A It is possible to administer a predetermined amount of liquid to the patient at any desired time regardless of the position of the changeable container or receptacle (A), so that it is very easy to use and the therapeutic effect can be improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be takeners of ordinary skill in the art, And such variations are within the scope of the present invention.

110 ... main body 110a ... cut-
110b ... display window 110c ... control section
111 ... drive motor 111a ... rotational shaft
111b ... projecting portion 112 ... power supply portion
113 ... vertical rail part 120 ... kit
121a, 121b ... Case 122 ... Feed screw
122c ... rotation axis 122d ... screw
123 ... cylinder 123a ... fluid inlet
123b ... fluid outlet 124, 131a ... vertical groove
130 ... elastic coupling means 131 ... socket
131b ... Guide ball 131c ... Clamping projection
132 ... elastic member 133 ... elevating member
133a ... lumbar 133b ... latching jaw
133c ... upper surface 134 ... fixed cap
134a ... lifting hole 134b ... inward bent portion
A ... Sap container B ... Injection needle
C1 ... First fluid hose C2 ... Second fluid hose
D ... Shaft outer diameter

Claims

A main body having a driving motor and a power supply unit for supplying power to the driving motor; and a liquid inlet for receiving the liquid solution is formed at one side of the main body while being detachably coupled to the main body, and a liquid outlet for discharging the supplied liquid is formed at the other side And a kit including a transfer screw that receives a rotational force from the driving motor and rotates to one side and transfers the liquid to the liquid discharge port through the liquid inlet,
A case in which the kit is coupled to the main body, a cylinder mounted on the inside of the case and integrally connected to the fluid inflow port and the fluid inflow port on one side and the other side and the feed screw is vertically and tightly inserted, And an elastic coupling means provided on an upper portion of the conveyance screw so that the end of the rotation axis of the drive motor and the conveyance screw are elastically connected to each other;
The elastic coupling means is coupled to the upper end of the rotation shaft of the conveying screw and has a vertical groove portion at the upper end thereof. The elastic member is vertically installed in the vertical groove portion of the socket. The elastic member is coupled to the upper portion of the socket, A lifting member engaging with an end portion of the driving shaft of the driving motor; a locking protrusion protruding from an outer circumferential surface of the lifting member; and a lifting / lowering member, which is formed long on the side wall of the socket so as to be fitted in the locking protrusion, And a fixed cap which is fixedly fitted to an upper portion of the cylinder while supporting an upper end of the socket and has a lift hole for a lift member formed at the center thereof so as to be stably formed and to guide the lift member from the socket And the amount of the liquid to be dispensed.

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The method according to claim 1,
A protrusion is formed at an end portion of the rotation shaft of the drive motor,
A recessed portion engaging with the protrusion is formed on an upper end of the lifting member,
Wherein the upper surface of the lifting member is formed to be inclined downward toward the recessed portion.

The method according to claim 1,
A cutout portion capable of receiving the kit is formed at one side of the main body,
A vertical rail portion is formed on one side of the cutout portion,
Wherein the kit includes a vertical groove portion that is slidably coupled along the vertical rail portion so that the kit can be slidably coupled upward from below the main body.

The method according to claim 1,
Wherein a contact protrusion closely adhered to the inner circumferential surface of the cylinder is formed in the lower outer circumferential surface of the socket so that the liquid inflow into the cylinder through the liquid inflow port does not flow back to the upper portion of the transfer screw and out of the cylinder. .

The method according to claim 1,
Wherein the feed screw is formed such that the pitch of the screw gradually decreases toward the liquid discharge port.

The method according to claim 1,
Wherein the feed screw is formed such that the outer diameter of the screw shaft gradually increases toward the liquid outlet.

The method according to claim 1,
Wherein the liquid inlet and the liquid outlet are formed at positions which do not open at the same time.

The method according to claim 1,
The fluid inlet is connected to a first fluid hose connected to the fluid container
Wherein the fluid outlet is connected to a second fluid hose connected to the injection needle.

The method according to claim 1,
Wherein a front surface of the main body is provided with a display window for outputting the operating state of the driving motor and the feed screw in real time and a control unit for controlling the on / off operation of the driving motor and the rotational speed of the feed screw. Device.