KR100597601B1 - infuser for a living body - Google Patents

Abstract

The present invention relates to a liquid injection device for a living body, the body 10 and the display means 20 is formed on the outer surface of the body to display the user's input result, operation and status, and is formed on the outer surface of the body An operation means 30 for manipulating the injection amount and injection speed of the liquid, a supply tube 40 disposed through the body to supply the liquid stored in the liquid reservoir to the living body, and the supply tube is compressed to pump the liquid And a pumping means 50, a motor 60 for driving the pumping means, and a control means 70 for controlling the motor and the pumping means to be driven according to the operation of the operation means. In the, the supply tube 40 is provided with a plurality of crimping portion 42 which is separated into a plurality in the liquid reservoir and passes through the inside of the pumping means, after passing the crimping portion disposed in the pumping meansTherefore, the tube is connected to the living body through a single pipe, and the pumping means 50 is provided with a crimping port 53 for pumping liquid while simultaneously compressing a plurality of crimping portions of the supply tube, the injection efficiency of liquid It is effective to miniaturize the device and simplify the structure by increasing the size and reducing the size of the tube for the same dose.

Description

Liquid injection device for living body {infuser for a living body}

1 is a perspective view showing a conventional liquid injection device for a living body,

FIG. 2 is a configuration diagram of an injecting roller and a movable part installed in FIG. 1;

3 is a perspective view of a liquid injection device for a living body according to the present invention;

4 is a control block diagram of a liquid injection device for a living body according to the present invention;

5 is a configuration diagram inside the body of FIG.

6 is a perspective view of the pumping means of FIG. 5;

7 is an exploded perspective view of the pumping means of FIG.

<Explanation of symbols for the main parts of the drawings>

10: body 20: display means

30: operation means 40: supply tube

42: crimping portion 50: pumping means

51 base member 52 gear

53: crimp

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a liquid injection device for a living body, and moreover, to a liquid injection device for a living body in which a device is downsized and a structure is simplified by increasing a liquid injection efficiency and reducing a tube size for the same injection amount.

Generally, in order to inject a ringer solution (generally, all injectable liquid substances) to a patient, which is generally used in a medical institution such as a hospital, a ringer bottle containing a sap is commonly used, as is well known. It is injected into the patient through a connection hose while hanging on the clinic, and the medical person adjusts the injection volume control device attached to the supply tube while watching the injection amount or injection rate of the fluid with the eye, that is, the speed at which the liquid falls. Alternatively, the scanning speed or the like may be roughly determined.

However, when such a manual device is used to determine the injection amount or the injection rate by an intuitive or empirical judgment of a medical person, it is not possible to determine the exact injection amount or injection rate due to the difference in skill or individual, and to check the remaining amount of the fluid from time to time. To do this, there is a problem that a guardian is necessary for this purpose. In order to solve this problem, the microprocessor technology is used to detect and determine the injection amount or speed of the infusion, and control the rotation of the motor to adjust the injection amount or injection speed of the infusion injected into the patient, and determine the remaining amount of the infusion. A liquid injection device for automatically stopping the injection when it is dropped is disclosed in Korea Patent No. 0363426.

The conventional liquid injection device, as shown in Figures 1 and 2, the front surface of the main body 1, the user is a display means consisting of a plurality of LEDs to display the user's input result and operation and status by checking the state of the equipment (2) is formed while an input means (3) consisting of a plurality of buttons for adjusting the injection amount or the injection speed is formed, and on one side of the main body (1) an eccentric cam according to the rotation of the lever (not shown) (not shown) No sliding) is coupled to the movable portion 4 sliding in the main body (1). In addition, the injecting roller 7 is coupled to the motor 5 and the rotation shaft of the motor 5 inside the main body 1 and rotates according to the driving of the motor, and has a plurality of auxiliary rollers 6 on the circumferential surface thereof. ) And an elastic piece 8 provided on an outer surface of the auxiliary roller 6. In addition, an air bubble detection sensor (S) for detecting the inflow of air through the supply tube (9) is installed inside the lower end of the movable portion (4). The supply tube 9 is installed to pass between the main body 1 and the movable portion 4, it is elastically supported by the elastic piece (8).

In the conventional liquid injection device configured as described above, when the motor 5 is driven by the control of the microprocessor (not shown) according to the manipulation of the input means 3 and the detection of the detection sensor, a plurality of auxiliary rollers 6 on the circumferential surface thereof. The injecting roller 7 having a) is rotated on the rotating shaft of the motor 5, and the supply tube 9, which supplies the fluid through the auxiliary roller 6 and the elastic piece 8, closely adheres to the movable part 4. Or relaxing to control the injection amount or rate of the fluid.

By the way, medical devices such as liquid injecting devices have a simple structure and have a small size, which is convenient to handle and does not burden patients. However, attempts have been made to miniaturize the driving portions of liquid injecting devices. In this case, since the feed tube passes through only one side of the injecting roller, the feed tube diameter of the portion passing through the drive portion of the liquid injection device is the same diameter as the feed tube outside the drive portion of the liquid injection device. There is a problem in that there is a limit in miniaturizing the size of.

Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to increase the injection efficiency of the liquid and to reduce the size of the tube for the same injection amount to reduce the size of the device and simply to the biological liquid injection device To provide.

The liquid injection device for a living body according to the present invention for achieving the above object is formed on the outer surface of the body, the display means for displaying the user's input result, operation and status, and liquid formed on the outer surface of the body Operation means for manipulating the injection amount, injection speed, and the like, a supply tube disposed through the body to supply the liquid stored in the liquid reservoir to the living body, pumping means for compressing the supply tube to pump the liquid, and the pumping In a liquid injection device for a living body having a motor for driving means and a control means for controlling the motor and the pumping means in accordance with the operation of the operation means, wherein the supply tube is separated into a plurality of the liquid reservoir It is provided with a plurality of pressing parts passing through the inside of the pumping means, gathered after passing the pressing portion disposed inside the pumping means Through the conduit and is in my tube is connected to a living body, wherein the pumping means is characterized in that a plurality of compression and compression portion of the supply tube at the same time provided with a compression syntax for pumping of liquid.

The pumping means may include a base member fixed to the body and a crimped portion of the supply tube, a gear coupled to the base member to be rotated by the driving of the motor, and the supply tube while rotating according to the rotation of the gear. It consists of the pressing hole fitted to the bottom of the gear to press the pressing portion of the pumping liquid.

The base member is provided with a groove track portion in which the pressing portion of the supply tube is disposed while the pressing hole is rotated.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 to 5, the liquid injection device for a living body of the present invention, the display means 20 is formed on the outer surface of the body 10 to display the user's input result, operation and status, while the liquid Manipulation means 30 is formed on the outer surface of the body 10 to manipulate the injection amount and the injection speed of the supply tube disposed through the inside of the body 10 to supply the liquid stored in the liquid reservoir (T) to the living body ( 40, the pumping means 50 for crimping the supply tube 40 to pump the liquid, the motor 60 for driving the pumping means 50, and the operation means 30 according to the operation And control means 70 for controlling the motor 60 and the pumping means 50 to be driven.

The body 10 has a seating part 12 to which the pumping means 50 and the motor 60, etc. are seated and fixed, and the display means 20, the operation means 30, and the like are coupled to the pumping means. And a cover portion 14 covering the motor 50 and the like, and connecting the supply tube 40 to the boundary portion of the seating portion 12 and the cover portion 14 to supply liquid to the living body. The connector 82 is coupled so as to. Inside the body 10, the control means 70 (not shown in FIG. 5), a battery 84 for supplying power, and the liquid reservoir T for storing liquid are installed. And the body 10 is provided with a detection means (not shown) consisting of a plurality of sensors for detecting the injection amount and injection speed of the liquid, the driving state of the motor and the like input to the control means (70). The body 10 may be coupled to a DC supply means for supplying external power separately from the battery 84.

The display means 20 includes an injection speed display unit 21 which shows the injection speed of liquid as a numerical value, a total injection amount display unit 22 which shows the total injection amount of liquid, and a battery remaining amount display unit which displays the remaining amount of the battery to be described later ( 23), a mode display section 24 indicating a mode when a large amount of liquid is temporarily injected, and a plurality of LED display sections 25 indicating a state of power supply or the like. Numerical parts are indicated on the LCD screen.

The operation means 30 is composed of a plurality of buttons for controlling the user to adjust the equipment, the control button 31 for adjusting the amount of liquid in a predetermined unit, and select the PCA mode when injecting a large amount of liquid PCA selection button 32, a mode selection button 33 for selecting various modes at the time of injection, and a run / stop button 34 for operating or stopping the device.

5 and 7, the supply tube 40 is divided into a plurality of tubes in the liquid reservoir T and connected to the pumping means, and the pumping means 50. And a plurality of crimping portions 42 which are inserted into the holes of the base member to be described later, pressed by the crimping holes to pump the liquid, and after passing through the plurality of crimping portions 42 into one conduit, the connector 82. It is divided into a rear branch 43 which is connected to). The feed tube of this embodiment is branched into two, but may be formed branched into two or more.

As shown in FIGS. 6 and 7, the pumping means 50 is coupled to the base member 51 and the base member 51 on which the pressing part 42 of the supply tube is disposed and fixed to the body. And the gear 52 rotated by the driving of the motor 60 and the pressing portion 42 of the supply tube 40 while being rotated in accordance with the rotation of the gear 52 to pump the liquid. It consists of the compression port 53 made of a plurality of balls fitted to the bottom of the 52.

The base member 51 is in the form of a circular plate, in the center of which the gear 52 is fitted is formed a projection (51a) fixed by the fastening member 54, the outer side of the projection (51a) the supply tube ( While the pressing portion 42 of the 40 is disposed, a groove track portion 51b on which the ball pressing hole 53 rides and rotates is formed, and is fixed to the seating portion 12 of the body 10 on the outer surface thereof. The flange portion 51c to be formed is formed. In addition, the groove track part 51b is formed with a plurality of holes 51d for forming the crimping portion 42 by inserting the front and rear branches 41 and 43 of the supply tube 40 from the lower side to the upper side. It is.

The bottom surface of the gear 52 is formed with a receiving groove (52a) for receiving the ball pressing port 53 is maintained in the position, the center of the gear 52 is fitted to the protrusion (51a) The hole 52b is formed.

The pressing hole 53 may be integrally formed with the gear 52. That is, a protrusion such as a spherical shape or a cylinder shape may be formed on the bottom of the gear 52 so that the protrusion serves as a crimping hole.

On the other hand, an elastic member such as a compression spring may be inserted between the fastening member 54 and the gear 52 so that the pressing hole 53 presses the pressing portion 42 of the supply tube 40 with a uniform force. have.

A drive gear 62 is formed on the rotation shaft (not shown) of the motor 60 so as to be bitten by the gear 52. The control means 70 is a microprocessor, it may be connected to the microcomputer.

In the liquid injection device for a living body according to the present invention configured as described above, an external tube (not shown) is connected to the connector 82 to install an injection needle in a living body such as a patient or an animal, and then the By operating the button to determine the appropriate injection amount and injection speed and pressing the execution button 34, the motor 60 is controlled by the control means 70 in accordance with the input of the operation means 30 and the detection means 90 Drive. The motor 60 is controlled through a motor driving circuit (not shown).

As the motor 60 rotates, the gear 52 rotates through the drive gear 62 so that a plurality of pressing holes 53 (balls) accommodated on the bottom surface of the gear 52 are groove tracks of the base member 51. While revolving along the portion 51b, the two pressing portions 42 and 42 of the supply tube 40 are simultaneously pressed to pump the liquid in the liquid storage tank T. The liquid moves as shown by the arrow in Fig. 7 and is injected into the living body.

According to the liquid injection device for a living body according to the present invention, since the feed tube is branched and disposed throughout the circumferential direction of the base member of the pumping means, the device can be miniaturized by increasing the injection efficiency of the liquid and reducing the size of the tube for the same injection amount. The effect is to simply do the structure.

Claims (5)

A display unit formed on the body, an outer surface of the body to display a user's input result, operation, and state, an operation means formed on the outer surface of the body to manipulate an injection amount, an injection speed, and the like of the liquid, and stored in the liquid reservoir A supply tube disposed through the inside of the body to supply liquid to the living body, pumping means for compressing the supply tube to pump liquid, a motor for driving the pumping means, the motor according to the operation of the operation means, and A living liquid injection device having control means for controlling the pumping means to drive, The supply tube is provided with a plurality of pressing parts which are separated into a plurality in the liquid reservoir and pass through the inside of the pumping means, and are gathered after passing through the pressing parts arranged inside the pumping means and connected to the living body through a single pipe. It's a tube, The pumping means is a liquid injection device for a living body, characterized in that having a crimping port for pumping a liquid while simultaneously crimping a plurality of crimping portion of the supply tube. The method of claim 1, The pumping means, A base member fixed to the body and having a compressed portion of the supply tube; A gear coupled to the base member and rotated by driving of the motor; And a pressurization port fitted to a bottom of the gear to pressurize the pressurized portion of the supply tube while rotating in accordance with the rotation of the gear. The method of claim 2, The base member is provided with a crimping portion of the supply tube, the liquid injection device for a living body, characterized in that the groove is formed in the groove is rotated. The method of claim 2, The crimping device is a living body liquid injection device, characterized in that integral with the gear. The method of claim 2, And the elastic member is inserted between the fastening member and the gear so that the pressing hole presses the pressing part of the supply tube with a uniform force.

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