KR102129284B1 - Semiautomatic iv regulator - Google Patents

Abstract

The present invention relates to a semi-automatic fluid control device of a fluid set having a fluid chamber, wherein a clamp for adjusting the speed of fluid infusion is connected to the fluid infusion tube, and for this purpose, irradiating light onto a droplet dropped in the fluid chamber It is composed of a light source, a reflector for reflecting the light of the light source, and a sensor for detecting the reflected light, and the electrical signal using the light detected by the sensor while the clamp is connected to the sap drip tube A fluid sensor that outputs a controller and a controller that detects a drop according to the electrical signal to calculate a current fluid administration rate, and generates a predetermined control signal through comparison between a preset target fluid administration rate and the calculated current fluid administration rate And, it provides a semi-automatic fluid control device including a micro-automatic regulator for adjusting the rate of fluid administration by changing the flow path width of the combined fluid drip tube according to an external control signal coupled with a part of the fluid drip tube.

Description

Semi-automatic fluid control device {SEMIAUTOMATIC IV REGULATOR}

The present invention relates to a semi-automatic fluid control device.

In general, in hospitals, intravenous therapy is used in which a needle is inserted directly into a vein to inject fluid, drugs, or blood into the human body.

Intravenous therapy is effective because it injects fluid directly into a vein, so it has an accurate and fast effect.

To do this intravenous therapy, most hospitals use a fluid set consisting of a fluid container, fluid dropper, fluid line (tube), flow regulator, and needle, and a needle is inserted directly into the patient's vein. Afterwards, the infusion rate of other fluids was calculated in the prescription, and the fluid infusion rate was adjusted directly with the naked eye using a flow rate controller of the infusion solution set.

However, as the nurse manually controls the infusion rate of the fluid manually as described above, if the infusion rate of the fluid injected into the patient's vein is fast, the fluid may be excessively injected and side effects may occur, and if the fluid injection rate is slow, the fluid is insufficient. There was a problem in that the efficacy of the sap is significantly reduced.

In addition, it is difficult to accurately match the infusion rate of the fluid according to the prescription due to the manual adjustment by the nurse, and the infusion rate is not constant depending on the person adjusting it. There was this wasted issue. This is the same when injecting blood, drugs, etc. into the patient.

Therefore, when injecting a fluid or the like, it is important that the fluid or the like is injected at an accurate rate according to a prescription.

Korean Registered Utility Model No. 20-0409394 (registered on February 15, 2006.)

The present invention provides a semi-automatic fluid control device capable of finely adjusting the fluid infusion rate based on the determination of the fluid infusion rate primarily by using a flow regulator (clamp) installed on the fluid drop tube.

In addition, the present invention provides a semi-automatic fluid control device capable of minimizing power consumption for fine adjustment by controlling the fluid administration speed by breaking the fluid drip tube and adjusting the flow path width.

However, the technical problems to be achieved by the present embodiment are not limited to the technical problems as described above, and other technical problems may exist.

As a technical means for achieving the above technical problem, a semi-automatic fluid control device according to an embodiment of the present invention is a clamp for adjusting the rate of fluid administration, is connected on a fluid drip tube, semi-automatic of a fluid set having a fluid chamber In the fluid control device, the light source is irradiated with a drop dropped in the infusion chamber, and a reflector for reflecting the light of the light source and a sensor for detecting the reflected light, and the clamp is the sap droplet A fluid detector that outputs an electrical signal using light detected by the sensor while connected to a tube, detects a drop according to the electrical signal, calculates a current fluid administration rate, and sets a preset target fluid administration rate and the A controller for generating a predetermined control signal through comparison between the calculated current fluid administration speeds, and a fluid administration speed by changing a flow path width of the combined fluid drip tube according to an external control signal coupled to a part of the fluid drip tube It may include a fine automatic regulator for adjusting the.

According to an embodiment of the present invention, the micro-automatic regulator includes a bending jig in which a portion of the sap drop tube is coupled, and a specific portion of the sap drop tube coupled to the bending jig is bent to flow a path of the sap drop tube The width of the fluid can be adjusted by changing the width.

According to an embodiment of the present invention, the fine automatic regulator is formed with a part of the bending jig, a fixing member on which a driving body driven according to the adjustment signal is mounted, and another part of the bending jig is formed, and It is hinged to be rotatable with the fixing member, and rotated according to the driving of the driving body connected to the hinge to further include a rotating member that changes a flow path width by bending a specific portion of the sap drop tube coupled to the bending jig. have.

According to an embodiment of the present invention, the driving body has a control line connected to the controller on one side, a drive shaft is connected to the other side, the motor is driven under the control of the controller to operate the drive shaft, and on the drive shaft It is formed on a screw thread that rotates according to the drive of the drive shaft, the first gear connected to the screw thread and rotates according to the rotation of the screw thread, coupled to the hinge and rotated according to the rotation of the first gear connected to the hinge A second gear for rotating the rotating member may be provided.

According to an embodiment of the present invention, the semi-automatic fluid control device is formed on both sides of the bending jig, has a smaller diameter than the other parts of the bending jig, and the sap drip tube coupled to both sides of the bending jig It is possible to further include a left and right push key that deforms the shape of the inner flow path of the sap dripping tube coupled to the bending jig by pressing a portion.

According to an embodiment of the present invention, the semi-automatic sap adjusting device is connected to the first gear or the second gear to detect the operating state of the first gear or the second gear, and then transmits an electrical signal corresponding to the control line to the control line. It further includes an encoder that outputs to the controller, and the controller can calculate the angle of bending of the sap drop tube coupled to the bending jig using the electrical signal.

The above-described problem solving means are merely examples and should not be construed as limiting the present invention. In addition to the exemplary embodiments described above, there may be additional embodiments described in the drawings and detailed description of the invention.

According to any one of the above-described problem solving means of the present invention, micro-automatic adjustment of the rate of macroscopic fluid injection through an existing clamp and fine-tuning of the macroscopic fluid administration rate allows the fluid to be injected at a desired fluid administration rate. By providing a regulator, it is possible to increase accuracy in controlling the rate of administration of the fluid.

In addition, according to any one of the above-described problem solving means of the present invention, by using a bending jig to break the sap drop tube to adjust the flow path width, it is possible to minimize power consumption compared to the sap drop tube deformation method using an external actuator. have.

According to any one of the above-described problem solving means of the present invention, the area of the sap drop tube including the portion where the sap drop tube is bent is deformed into an elliptical shape using the left and right push keys to break the sap drop tube to increase the flow path width. By adjusting, it is possible to improve the restoration speed when returning to the original state after bending.

1 is a view showing a connection relationship between a semi-automatic fluid control device and a fluid set according to an embodiment of the present invention.
2 is a view showing the detailed configuration of the fluid detector in the semi-automatic fluid control device according to an embodiment of the present invention.
Figure 3 is a block diagram showing the internal configuration of the controller of the semi-automatic fluid control device according to an embodiment of the present invention.
4 is a view showing the structure of the micro-automatic regulator of the semi-automatic fluid control device according to an embodiment of the present invention.
5 is a view showing the structure of a fine automatic regulator when a part of the sap drip tube is in a broken state according to an embodiment of the present invention.
6A and 6B are diagrams for explaining a shape in which a flow path shape of a sap drip tube is deformed by a left and right push key according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily practice. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. In addition, in order to clearly describe the present invention in the drawings, parts irrelevant to the description are omitted, and like reference numerals are assigned to similar parts throughout the specification.

In the specification of the present invention, when a part “includes” a certain component, it means that the component may further include other components, not to exclude other components, unless specifically stated otherwise.

In describing each drawing, similar reference numerals are used for similar components.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from other components.

For example, the first component may be referred to as a second component without departing from the scope of the present invention, and similarly, the second component may be referred to as a first component. The term “and/or” includes a combination of a plurality of related described items or any of a plurality of related described items.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains.

Terms such as those defined in a commonly used dictionary should be interpreted as having meanings consistent with meanings in the context of related technologies, and should not be interpreted as ideal or excessively formal meanings unless explicitly defined herein. do.

Hereinafter, an explosives detection system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a connection relationship between a semi-automatic sap adjusting device 100 and a sap set according to an embodiment of the present invention, Figure 2 is a semi-automatic sap adjusting device 100 according to an embodiment of the present invention sap detector ( 120) is a diagram showing the configuration, Figure 3 is a block diagram showing the internal configuration of the controller 300 of the semi-automatic fluid infusion device 100 according to an embodiment of the present invention, Figure 4 is an embodiment of the present invention It is a diagram showing the structure of the micro-automatic regulator 140 of the semi-automatic sap adjusting device 100, and FIG. 5 is a micro-automatic regulator 140 when a part of the sap drip tube is broken according to an embodiment of the present invention It is a diagram showing the structure of.

As shown in FIG. 1, the semi-automatic fluid control device 100 is mounted on the fluid chamber 10 and detects drips dripping in the fluid chamber 10, and through the manual adjustment device clamp 20 1 Subsequently, the fluid dose may be finely adjusted through the fine automatic regulator 140 while the fluid dose is set.

To this end, the semi-automatic sap control device according to an embodiment of the present invention is installed on one side of the sap sensor 120 of the sap chamber 10, and the sap drip tube between the clamp 20 and the sap chamber 10 It may be provided with a controller (300 in FIG. 3) for controlling the micro-automatic regulator 140 and the micro-automatic regulator 140 for adjusting the flow path width of the sap drip tube 30 in combination with (30).

In an embodiment of the present invention, the fluid detector 120 is mounted on the upper side of the side of the semi-automatic fluid control device 100 and can be combined with the fluid chamber 10, and the micro-automatic regulator 140 is a semi-automatic fluid control device ( It is mounted on the lower side of the side 100) can be connected to the sap drip tube (30).

In addition, the fluid detector 120 may be formed inside the main body of the semi-automatic fluid adjusting device 100 in a form that can be moved in the left-right direction. Specifically, when not connected to the fluid chamber 10, the fluid detector 120 is located inside the body of the semi-automatic fluid control device 100, otherwise it is protruded to the outside of the body by a sliding method, and the fluid chamber 10 It can be combined with.

As illustrated in FIG. 2, the infusion sensor 120 as described above includes a light source 200 irradiating light onto a dripping drop, a reflector 210 for reflecting light of the light source, and a reflector ( It includes a sensor 220 for detecting the light reflected through the 210, using the light detected by the sensor 220 to detect the drip drop in the sap chamber 10, and then an electrical signal corresponding to this Can output

First, in the embodiment of the present invention, the light source 200 is for generating and irradiating light, such as an LED, and it is preferable to maintain a constant intensity of light, and it is preferable to use green light.

The reflector 210 is provided with a reflecting surface for condensing while refracting and reflecting the light transmitted through the light source 200 or the droplet, and may be, for example, a concave mirror, but is not limited thereto.

The sensor 220 must detect the light and be able to vary the output signal according to the amount of light, and the optical fiber 222 and the optical fiber 222 for receiving light from the light source 200 reflected from the reflector 210 It may include a lens 224 for catching the light of the light source 200 transmitted from ).

The light source 200 and the sensor 220 as described above are located on one side outside from the radial direction of the sap chamber 10, and the reflector 210 is located on the other side outside from the radial direction of the sap chamber 10. Preferably, the fluid detector 120 is coupled to a predetermined portion of the fluid chamber 10 to be positioned. At this time, the light source 200 is irradiated to transmit at least a portion of the dripping drop, and the sensor 220 should be positioned away from the light source 200.

Through the above-described combination, the light source 200 irradiates light into the interior of the sap chamber 10, and the irradiated light is reflected and condensed by the reflector 210 to reach the sensor 220.

Meanwhile, the sensor 220 may generate an electrical signal corresponding to the light to be reached and provide it to the controller 300.

The controller 300 calculates the fluid administration rate based on the electrical signal output from the sensor 220 of the fluid sensor 120, and based on the difference between the preset target fluid administration rate and the calculated fluid administration rate, the target fluid Control signals can be generated to allow the rate of administration to be reached. At this time, the adjustment signal may be a signal for controlling the operation of the fine automatic regulator 140.

The controller 300 performing the above-described functions will be described with reference to FIG. 3.

The controller 300 of the semi-automatic sap adjusting device 100 according to an embodiment of the present invention, as shown in FIG. 3, receives the electrical signal generated by detecting the drop with the sap detector 120, and the infusion rate of the sap, The signal processing unit 310 capable of calculating the infusion-related information such as the infusion amount and the remaining amount, the display unit 330 for displaying information such as the infusion rate, the infusion amount and the remaining amount, and the infusion sensor 120 It includes a control unit 320 for controlling the control and the automatic regulator 140, and a variety of information for controlling the semi-automatic fluid control device 100, for example, an operation unit 340 capable of inputting information about the rate of fluid administration. Can be configured.

On the other hand, it may be configured to further include a power supply (not shown) for supplying power for operating the semi-automatic fluid control device 100.

A description will be given of a process in which the semi-automatic fluid control device 100 as described above detects a drip dropping in the fluid chamber 10.

First, when the drop is not dropped on the sap chamber 10, the light irradiated from the light source 200 is collected by being reflected by the reflector 210, that is, the concave mirror to reach the sensor 220.

The sensor 220 detects light of the light source 200 reflected through the reflector 210, and the amount of light detected by the sensor 113 is maintained at a predetermined level or higher due to the reflector 210.

When a drop is dropped on the sap chamber 10, light irradiated from the light source 200 is reflected by the reflector 210 after at least a portion passes through the drop and reaches the sensor 220.

Here, the light irradiated from the light source 200 is condensed through a droplet serving as a convex lens to reach the reflector 210. Then, it is diffused while being reflected through the reflector 210 and detected by the sensor 220.

Therefore, since the light detected by the sensor 220 is diffused through the reflector 210, the amount of light is greatly reduced compared to the case where the droplet is not transmitted.

Through the above-described process, the sap detector 120 detects the dripping drop, and provides the corresponding electrical signal to the signal processing unit 310.

The signal processing unit 310 calculates fluid-related information such as a fluid infusion rate, fluid dosage, and residual amount based on an electrical signal input from the fluid sensor 120 for a predetermined time, and the control unit 320 ).

The process of operating the semi-automatic sap adjusting device 100 through the sap detection as described above will be described below.

First, a user, for example, a nurse, sets an appropriate speed by operating the operation unit 340 to administer the fluid to the patient using the fluid set. Specifically, the nurse sets the administration rate of the drug to be administered to the patient (hereinafter referred to as “mokpo fluid administration rate”) through operation of the operation unit 340.

Then, the nurse takes the fluid detector 120 inserted in the body of the semi-automatic fluid control device 100 in a sliding manner and engages the fluid chamber 10. Accordingly, the light source 200, the reflector 210, and the sensor 220 of the sap detector 120 may be coupled to the sap chamber 10. Specifically, the light source 200 and the sensor 220 are located on one side outside from the radial direction of the sap chamber 10, and the reflector 210 is located on the other side outside from the radial direction of the sap chamber 10. Preferably, the fluid detector 120 may be coupled to a predetermined portion of the fluid chamber 10.

In addition, the nurse connects the sap drip tube 30, i.e., a portion of the sap drip tube 30 between the clamp 20 and the sap chamber 10, with the micro-automatic regulator 140.

Thereafter, the nurse adjusts the rate of fluid administration through adjustment of the clamp 20. That is, according to the adjustment of the clamp 20, the fluid administration rate is roughly adjusted. At this time, the fluid detector 120 detects the drop dripping in the fluid chamber 10, and the signal processing unit 310 receives the electrical signal accordingly. Output to

Then, the signal processing unit 310 outputs the fluid-related information to the control unit 320, and the control unit 320 calculates the fluid administration rate of the fluid-related information (hereinafter, referred to as'current fluid administration rate') and then It is displayed on the display unit 330.

The control unit 320 generates a control signal for fine adjustment by comparing the current fluid administration rate with the target fluid administration rate, and provides it to the fine automatic regulator 140. Specifically, the control unit 320 calculates a difference value through a comparison between the current fluid administration rate and the target fluid administration rate, and when the calculated difference value is out of an error range, generates a control signal for fine automatic adjustment to finely automatic Output to the regulator 140.

Accordingly, the micro-automatic regulator 140 corrects the macroscopic fluid administration rate by changing the flow path width of the fluid drip tube 30 connected to itself according to the control signal, that is, the fluid drip rate so that the current fluid administration rate becomes the target fluid administration rate. The flow path width of the pipe 30 is changed. At this time, the sap detector 120 detects the dripping drop in the sap chamber 10 and provides an electric signal corresponding thereto to the signal processing unit 310, and the control unit 320 receives the sap-related information from the signal processing unit 310. After receiving the, it is possible to calculate the rate of fluid administration based on this and display it on the display unit 330.

The semi-automatic fluid control device 100 may display the display unit 330 as well as adjust the fluid administration rate through the process as described above.

Meanwhile, the control unit 320 may provide an interface capable of setting a target fluid administration rate. Specifically, the control unit 320 may provide an input means (not shown) capable of inputting the target fluid administration rate, or may receive information on the target fluid administration rate from the outside. When receiving from the outside, the controller 300 further includes a communication interface (not shown) for short-range communication, and receives information about the target fluid administration rate from an external device, such as a smartphone carried by a nurse, through a communication interface. I can receive it.

The fine automatic regulator 140 is combined with a part of the sap drip tube 30, and according to a control signal applied from the controller 300, the flow rate of the combined sap drop tube 30 can be changed to adjust the infusion rate of the sap. have. Specifically, the fine automatic adjuster 140 combines a portion of the sap drip tube 30 with a jig, and then rotates and rotates the jig to change the flow path width of a portion of the combined sap drop tube 30 to adjust the infusion rate. Can.

The fine automatic regulator 140 will be described with reference to FIGS. 4 and 5.

4 and 5, the fine automatic adjuster 140 may be largely composed of a base portion 410 having a jig 400 for bending and a cover portion 450 coupled with the base portion 410. have.

In an embodiment of the present invention, the bending jig 400 may have a groove shape in which a portion of the sap drip tube 30 can be combined. Specifically, the bending jig 400 may be in the form of a groove into which a portion of the sap drip tube 30, for example, about half, can be inserted, rather than the form in which the entire sap drop tube 30 is buried.

The base portion 410 is coupled by a hinge 435 to be rotatable with a fixing member 430 and a fixing member 430 having a plurality of seating grooves, for example, an area where a part of the driving body 420 can be mounted. The rotation member 440 is rotated by the hinge 435 according to the driving of the driving body 420 to bend a portion of the sap drip tube 30 coupled to the bending jig 400.

The rotating member 440 is provided with a hinge 435 coupled to the second gear 427 of the driving body 420 and rotatably coupled to the fixing member 420, according to the rotation of the second gear 427 It can be rotated by the combined hinge (435). Specifically, the rotating member 440 may be composed of an upper plate (not shown) and a lower plate (not shown) combined with the upper plate on which the hinge 435 is fastened to the second gear 427, and the upper plate is hinged. As it is rotated by 435, the combined lower plate may also be rotated. For this reason, the second gear 427 may be coupled to the hinge 435 formed on the rotating member 440.

In addition, the rotating member 440 includes a portion of the bending jig 400 to which a portion of the sap drip tube 30 is coupled, and may include a right push key 452 formed on the bending jig 400. .

The left and right push keys 450 and 452 as described above may be formed in a structure having a diameter smaller than the diameter of the groove of the bending jig 400 to be coupled to the left and right grooves of the bending jig 400.

The fixing member 430 of the base portion 410 includes another portion of the bending jig 300 to which other portions of the sap dropping tube 30 can be coupled, and a left push key formed on the bending yaw jig 300 It may include 450. The fixing member 430 is coupled through the rotating member 440 and the hinge 435 to serve as a fixed shaft when the rotating member 440 rotates.

The motor 421 and the first gear 426 of the driving body 420 are seated in the seating groove of the base 410, and a control line 423 is inserted to connect the motor 421 and the controller 300. The groove can be provided. Through this structure, the controller 300 may drive the motor 421 by applying a predetermined power to the motor 421 through the control line 423.

As described above, the motor 421 includes a control line 423 connected to the controller 300 on one side, and operates, for example, a driving shaft 424 that rotates according to the driving of the motor 421 on the other side. It can be provided. Also, on the drive shaft 424, a screw thread 425 that rotates according to the rotation of the drive shaft 424 and is connected to the first gear 426 may be provided.

The first gear 426 has the shape of a cogwheel coupled with the screw thread 425, and is engaged with the screw thread 425 to rotate together when the screw thread 425 is rotated.

Also, the first gear 426 may be connected to the second gear 427 combined with the hinge 435. Specifically, the cogs of the first gear 426 are connected to the cogs of the second gear 427, and the second gear 427 is engaged with the first gear 426 to rotate according to the rotation of the first gear 426 Will rotate.

In an embodiment of the present invention, it may be desirable that the cogwheel trajectory of the first gear 426 is smaller than the cogwheel trajectory of the second gear 427.

On the other hand, the fine automatic regulator 130 according to an embodiment of the present invention is formed on both sides of the bending jig 400 to have a smaller size (diameter) than the other parts of the bending jig 400, the bending jig Left and right push keys 450, which deform the flow path shape of the sap drop tube 30 coupled between both sides of the bending jig 400 by pressing the sap drop tube 30 coupled to both sides of the 400, 452) may be further provided. The shape in which the flow path shape of the sap drip tube 30 is deformed by the left and right push keys 450 and 452 will be described with reference to FIGS. 6A and 6B.

6A and 6B are diagrams for explaining a shape in which a flow path shape of the sap drip tube is deformed by a left and right push key according to an embodiment of the present invention.

Left and right push keys (450, 452), as shown in Figure 6a, the bending part by the rotating member 440, that is formed on both sides based on the portion where the hinge 435 is formed jig 400 for bending By pressing both sides of the sap drip tube 30 coupled to the sap drop tube 30 between the two sides of the sap drop tube 30, the inner flow path shape is an elliptical shape, that is, the oval having a larger diameter in the longitudinal direction than the transverse direction It can be transformed into a shape. Specifically, the left and right push keys 450 and 452 have a shape of a groove having a size smaller than the diameter of the sap drop tube 30, and as the sap drop tube 30 is coupled to the groove, the sap drop tube in the left and right directions By pressing 30, the sap drip tube 30 having a circular flow path shape may be deformed into an elliptical flow path shape having a larger diameter in the longitudinal direction than in the horizontal direction.

On the other hand, when the rotating member 440 is rotated by the hinge 435 according to the driving of the second gear 427, a part of the sap drip tube 30 is bent, and at this time, the sap drop tube 30 of the bent portion The flow path shape of, as shown in Figure 6b, may be deformed into an elliptical shape in which the diameter in the horizontal direction is larger than the vertical direction.

The process of adjusting the speed of administration of the fluid by the micro-automatic regulator 130 having the structure as described above will be described below.

First, when the control signal generated by the controller 300 is applied to the motor 421 through the control line 423, the motor 421 drives the drive shaft 424 to form a screw thread 425 formed on the drive shaft 424. Rotate it. Accordingly, the first gear 426 coupled with the screw thread 425 rotates, and the second gear 427 coupled to the first gear 426 rotates.

By rotating the rotating member 430 by the hinge 435 connected to the second gear 427 according to the rotation of the second gear 427, a portion of the sap drip tube 30 inserted into the bending jig 400 For example, a portion of the sap drip tube 30 coupled to a portion of the bending jig 400 in which the hinge 435 is formed is bent. Accordingly, the flow path shape of the bent portion of the sap drip tube 30, that is, the flow path width is changed, so that the infusion rate of the sap can be adjusted.

Meanwhile, the fine automatic adjuster 140 according to the embodiment of the present invention may further include an encoder 460.

The encoder 460 is connected to the second gear 427, checks the operating state of the second gear 427, for example, the operating state of the cogwheel, generates an electric signal corresponding thereto, and controls the controller through the control line 423. It can be output to the signal processing unit 310 of (300). Specifically, the encoder 460 includes a light-emitting element and a light-receiving element formed between the cogwheels of the second gear 427, and as the cogwheel rotates, light is transmitted or blocked and current transmitted through the light-receiving element is transmitted. Converted to can be output to the signal processing unit 310 of the controller 300 through the control line 423. Accordingly, the signal processing unit 310 of the controller 300 generates a pulse signal using the waveform shaping circuit and the output circuit of the electric signal received through the control line 423, and the second using the generated pulse signal. After checking the number of revolutions of the gear 427, it is possible to calculate a bent angle of the rotating member 430 based on this.

On the other hand, in the embodiment of the present invention, although the encoder 460 is described as being operated in conjunction with the second gear 427, for example, it may be operated in conjunction with the first gear 426.

The process of operating the semi-automatic sap adjusting device 100 through the sap detection as described above will be described with reference to FIG. 7.

7 is a flowchart illustrating a process in which the semi-automatic sap adjusting device 100 according to an embodiment of the present invention operates.

First, as illustrated in FIG. 7, a user, for example, a nurse, operates an operation unit 340 to administer fluid to a patient using a fluid set, and sets an appropriate speed for fluid administration. Specifically, the nurse sets the administration rate of the drug to be administered to the patient (hereinafter referred to as the'target fluid administration rate') through the operation of the operation unit 340 (S500).

Then, the nurse takes the fluid sensor 120 inserted in the body of the semi-automatic fluid control device 100 in a sliding manner to the left and engages the fluid chamber 10 (S502). Accordingly, the light source 200, the reflector 210, and the sensor 220 of the sap detector 120 may be coupled to the sap chamber 10. Specifically, the light source 200 and the sensor 220 are located on one side outside from the radial direction of the sap chamber 10, and the reflector 210 is located on the other side outside from the radial direction of the sap chamber 10. Preferably, the fluid detector 120 may be coupled to a predetermined portion of the fluid chamber 10.

In addition, the nurse connects the sap drip tube 30, that is, a portion of the sap drip tube 30 between the clamp 20 and the sap chamber 10 with the micro-automatic regulator 140 (S504).

Thereafter, the nurse adjusts the rate of fluid administration through adjustment of the clamp 20. That is, according to the adjustment of the clamp 20, the fluid administration rate is roughly adjusted. At this time, the fluid detector 120 detects the drop dripping in the fluid chamber 10, and the signal processing unit 310 receives the electrical signal accordingly. Output to

Then, the signal processing unit 310 outputs the fluid-related information to the control unit 320, and the control unit 320 calculates the current fluid administration rate among the fluid-related information and displays it on the display unit 330 (S506).

The control unit 320 generates a control signal for fine adjustment by comparing the current fluid administration rate with the target fluid administration rate, and provides it to the fine automatic regulator 140. Specifically, the control unit 320 calculates a difference value through a comparison between the current fluid administration speed and the target fluid administration speed (S508), and generates a control signal for fine automatic adjustment when the calculated difference value is outside an error range. To output to the fine automatic regulator 140 (S510, S512).

Accordingly, the micro-automatic regulator 140 drives the driving body 420 according to the adjustment signal to rotate the rotating member 440 (S514), so as to be coupled to the sap drip tube 30, that is, the bending jig 300. In the portion of the infusion drip tube 30, the portion of the sap drip tube 30 coupled to the hinge 435 is bent to change the flow path width (S516). In addition to changing the flow path width, the sap detector 120 detects the dripping drop in the sap chamber 10 and provides an electric signal corresponding thereto to the signal processing unit 310, and the control unit 320 is a signal processing unit ( After receiving the infusion-related information from 310, the infusion rate can be calculated based on this and displayed on the display unit 330.

The semi-automatic fluid control device 100 may monitor the rate of fluid administration through the process as described above.

During the monitoring, if the monitored fluid administration rate deviates from the target fluid administration rate due to an external environmental factor or a change in the fluid set state, the controller 320 proceeds to S508 to perform a subsequent step to adjust the fluid administration rate. have.

The above description of the present invention is for illustration only, and a person having ordinary knowledge in the technical field to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the above detailed description, and it should be interpreted that all changes or modified forms derived from the meaning and scope of the claims and equivalent concepts thereof are included in the scope of the present invention. do.

10: sap chamber 20: clamp
30: sap dropper 100: semi-automatic sap control device
120: fluid detector 140: fine automatic regulator
200: light source 210: reflector
220: sensor 222: optical fiber
224: lens 300: controller
310: signal processing unit 320: control unit
330: display unit 340: operation unit

Claims (6)

delete In the semi-automatic fluid control device of the fluid set, the clamp for adjusting the rate of fluid administration is connected to the fluid drop tube and includes a fluid chamber,
Consists of a light source that irradiates light onto a drip drop in the sap chamber, a reflector for reflecting light of the light source, and a sensor for detecting the reflected light, with the clamp connected to the sap drop tube A sap detector that outputs an electrical signal using the light detected by the sensor;
A controller that detects a drop according to the electrical signal to calculate a current fluid administration rate, and generates a predetermined control signal through comparison between a preset target fluid administration rate and the calculated current fluid administration rate,
It is combined with a part of the sap drop tube to change the flow rate of the sap by changing the flow path width of the combined sap drop tube according to an external control signal. Semi-automatic sap control device including a micro-automatic regulator to adjust the rate of fluid infusion by changing a flow path width of the sap drop tube by bending a specific portion of the sap drop tube coupled to the bending jig.
According to claim 2,
The fine automatic regulator,
A fixing member on which a part of the bending jig is formed and a driving body driven according to the adjustment signal is mounted,
Another part of the bending jig is formed, hinged to be rotatable with the fixing member, and rotated according to driving of a driving body connected to the hinge to break a specific portion of the sap drop tube coupled to the bending jig Semi-automatic fluid control device further comprises a rotating member for changing the flow path width.
According to claim 3,
The driving body,
A motor having a control line connected to the controller on one side, a drive shaft connected to the other side, and driven under the control of the controller to operate the drive shaft;
A screw thread formed on the driving shaft and rotating according to driving of the driving shaft,
A first gear connected to the thread and rotating according to the rotation of the thread;
Semi-automatic fluid control device having a second gear coupled to the hinge and rotating according to the rotation of the first gear to rotate a rotating member connected to the hinge.
According to claim 4,
The semi-automatic fluid control device,
It is formed on both sides of the bending jig and has a smaller diameter than the other parts of the bending jig, by pressing the portion of the sap drip tube coupled to both sides of the bending jig of the sap drop pipe coupled to the bending jig A semi-automatic fluid control device further comprising left and right push keys for deforming the inner flow path shape into an oval shape.
The method of claim 5,
The semi-automatic fluid control device,
Further comprising an encoder connected to the first gear or the second gear to detect the operation state of the first gear or the second gear and outputs an electrical signal corresponding to it to the controller through the control line,
The controller,
A semi-automatic sap adjusting device that calculates a bent angle of the sap drop tube coupled to the bending jig using the electrical signal.

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