KR101738671B1 - Electric Filler Injector - Google Patents

Abstract

The present invention relates to an electric filler injector. In the motor-driven pillar injector of the present invention, the injection port of the syringe is held at one end of the body having the rail, the piston of the syringe is gripped to the piston holder, and the rotational motion of the motor, The filled filler is injected into the syringe by advancing the holder.
In addition, the motor-driven pillar injector of the present invention includes a plunger detachably coupled to the piston holder at an upper portion of the rail relative to the rail, A ball screw coupled to a lower portion of the rail with the plunger installed on the rail and having a thread in an inner hollow; A threaded shaft inserted into the hollow of the ball screw and corresponding to an internal hollow thread of the ball screw; A first gear coupled to an end of the shaft; A second gear engaged with the first gear; And a power generator for transmitting rotational power to the second gear.

Description

[0001] Electric Filler Injector [0002]

The present invention relates to an electric pillar injector and, more particularly, to an electric pillar injector for injecting a high viscosity filler.

In the field of cosmetic molding, a filler injecting procedure has been widely practiced, and studies on the properties of the filler have been actively carried out. As a result, a filler having a higher viscosity than that of a conventional filler appeared recently.

Viscosity is a physical quantity that indicates the magnitude of resistance in the flow of fluid. That is, the higher the viscosity, the greater the resistance to fluid flow, and the lower the viscosity, the lower the resistance to fluid flow. For the operation of the high viscosity filler, the piston of the filler injector should be pressed with a larger force.

The filler is received in the syringe and the filler is injected through the needle of the syringe into the skin of the recipient according to the pressure of the piston. The syringe containing the filler is not used solely, and has usually been used in a separate injector. 1 is a typical passive filler injector that has been used conventionally.

The filler of low viscosity can be sufficiently injected even by using the conventional manual filler injector shown in Fig. However, due to the appearance of a high viscosity filler, a much larger pressing force is required than in the prior art, making it difficult to use a manual filler injector.

In addition to such a manual filler injector, there is an electric filler injector using an electric motor in the related field. Such an electric filler injector has, for example, the structure shown in FIG. For example, Korean Patent Application Laid-Open Publication No. 10-2014-0023033, published on Feb. 26, 2014, discloses a prior art which discloses a prior art having the same or similar form as the vibrating filler injector shown in FIG.

In the prior art motor-driven pillar injector as shown in Fig. 2, the electric motor rotates the gear, the meshed gear rotates the threaded shaft, and the piston holder engaged with the shaft advances, so that the piston of the syringe presses the pillar .

However, the structure of such an electric pillar injector of the prior art is not suitable for intact injection of a newly developed high viscosity filler as a structure existing before the high viscosity filler is commercialized. The inventor of the present invention has recognized the following problem from the structure of the conventional electric pillar injector as shown in Fig.

First, the torque increase of the motor is not achieved to a satisfactory level. In order to inject the high viscosity filler, the piston of the syringe should be advanced by a much larger pressing force than that of the pressure of the low viscosity filler. However, the structure of the prior art as shown in FIG. 2 does not provide a suitable pressing force for injecting the high viscosity filler. In the case of using a large capacity power source that can increase the capacity of the motor and supply a larger current, it is theoretically possible to inject the high viscosity filler in the conventional structure. However, in this case, the size of the device is increased and the production cost is greatly increased.

Secondly, when injecting a high viscosity filler, the piston of the injector is pressurized with a much larger pressing force as compared with injection of a low viscosity filler. In this case, there is a high possibility that the injector mounted on the injector deviates. The filler injector is not only used in a horizontal state but is used at various orienting angles, so that possibility of detachment becomes larger. The prior art filler injector has a simple structure and does not have a structure for stably holding the syringe to the piston holder.

Third, in order to inject a high viscosity filler, the motor must be operated at a specific rotation speed (rpm) and a specific torque, and although real-time monitoring and feedback of the motor condition is important, the prior art filler injector lacks the structure have.

Fourth, there is lack of various injection modes which can maintain a strong pressing force for injecting a high viscosity filler and diversify the injection rate considering the characteristics of the subject, the procedure and the stage.

SUMMARY OF THE INVENTION The present invention has been made to solve all the problems of the prior art described above.

An object of the present invention is to provide an electric filler injector which can be used for injecting a high viscosity filler while maintaining the electric motor used in an electric filler injector for injecting a conventional low viscosity filler without increasing the capacity of the motor.

It is another object of the present invention to provide an electric pillar injector having a structure in which a syringe is fixed to a piston holder with a simple structure.

Another object of the present invention is to provide an electric pillar injector capable of generating a feedback signal so that the motor can be operated at a specific rotation speed (rpm) and torque by monitoring the state of the motor in real time.

It is another object of the present invention to provide an electric filler injector that provides various injection modes in consideration of the characteristics of the subject, the procedure, and the treatment steps.

In order to accomplish the above object, a representative structure of the present invention is as follows.

According to one aspect of the present invention, there is provided a method of controlling an internal combustion engine in which a syringe inlet port is held at one end of a body having a rail, a piston of a syringe is gripped in a piston holder, There is provided an electric filler injector for injecting a filled filler into a syringe by advancing the piston holder. The motor-driven pillar injector includes a plunger detachably coupled to the piston holder at an upper portion of the rail relative to the rail, A ball screw coupled to a lower portion of the rail with the plunger installed on the rail and having a thread in an inner hollow; A threaded shaft inserted into the hollow of the ball screw and corresponding to an internal hollow thread of the ball screw; A first gear coupled to an end of the shaft; A second gear engaged with the first gear; And a power generator for transmitting rotational power to the second gear.

Meanwhile, the power generation unit, which is a component of the electric pillar injector according to the present invention, may include a motor, a speed reducer, a sensor, and a control unit. The motor is power-coupled to the speed reducer, and the speed reducer is power-coupled to the second gear. The sensor senses the torque and / or the rotation speed of the motor to generate a signal and transmit the generated signal to the control unit, and the control unit can perform the feedback control based on the signal from the sensor.

The motorized pillar injector according to an embodiment of the present invention may further include a fixing hook for fastening the piston end of the syringe from above. At this time, it is preferable that the fixing hook is hinged to the plunger. Thereby, advantageous operational effects as described in detail in the preferred embodiment of the present invention with respect to replacement of the piston holder are achieved.

In the motor-driven pillar injector of the present invention, the controller can control the motor in a plurality of operation modes. The plurality of operation modes include a linear mode for rotating the motor at a constant speed and a non-linear mode for intermittently rotating the motor. In the above-described nonlinear mode, the motor is controlled to rotate at the same torque as in the linear mode, and the speed at which the motor rotates is controlled at the same rotational speed as that in the linear mode.

On the other hand, the plurality of steps are included in the logic near mode, and the advancing speed of the plunger can be controlled by gradually increasing the stopping time of the motor.

In addition, additional configurations may further be included in the electric filler injector according to the present invention.

According to the present invention, there is provided an electric filler injector which can be used for injecting a high viscosity filler while maintaining the motor used in an electric filler injector for injection of a conventional low viscosity filler without increasing the capacity.

Further, according to the present invention, there is provided an electric filler injector having a structure in which a syringe is fixed to a piston holder with a simple structure.

Further, according to the present invention, an electric filler injector capable of generating a feedback signal so that the motor can be operated at a specific rotation speed (rpm) and torque by monitoring the state of the motor in real time is provided.

Further, according to the present invention, there is provided an electric filler injector having various injection modes in consideration of the characteristics of the subject, the treatment method, and the treatment step.

1 is a view showing a conventional manual filler injector.
2 is a view showing an electric pillar injector according to the prior art.
3 is a view showing the overall structure of an electric pillar injector according to an embodiment of the present invention.
4 is a view showing a mutual coupling relationship of the plunger, the piston holder, and the ball screw according to the embodiment of the present invention.
5 is a view showing a structure of a power generating unit of an electric pillar injector according to an embodiment of the present invention.
6 is a view for explaining an appropriate rotation speed and torque generated from a power generating unit and a gear unit according to an embodiment of the present invention.
7 is a view showing a structure of a syringe holder according to an embodiment of the present invention.
8 is a diagram illustrating various operational modes according to an embodiment of the present invention.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented and changed without departing from the spirit and scope of the invention, from one embodiment to another. It is also to be understood that the location or arrangement of the individual components within each embodiment may be varied without departing from the spirit and scope of the present invention. Therefore, the following detailed description is not to be taken in a limiting sense, and the scope of the present invention should be construed as encompassing the scope of the appended claims and all equivalents thereof. In the drawings, like reference numbers designate the same or similar components throughout the several views.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

[Preferred Embodiment of the Present Invention]

3 is a view showing the overall structure of an electric pillar injector according to an embodiment of the present invention.

In the syringe 10, the injection part is attached to the end of the body 20 and the end of the piston is mounted to the piston holder 46 in a state where the filler is filled in the cylinder. The piston end of the syringe 10 is fixed to the fixed hook 47 in a state of being mounted on the piston holder 46. [ The fixing mechanism of the fixing hook 47 will be described in more detail in Fig.

The body 20 is composed of a horizontal portion having a longer length when viewed from the side and a vertical portion having a shorter length bent at a vertical end thereof, and may be entirely in an "a" shape. A rail is formed on the horizontal portion. A plunger 45 is provided through the rail and an upper portion of the plunger 45 is coupled to the piston holder 46. A ball screw 44 is coupled to the lower portion of the plunger 45. The ball screw is provided with a hollow provided with a screw thread corresponding to the screw thread formed on the shaft 43. The ball screw 44 is moved forward and backward in accordance with the rotation of the shaft 43 and the plunger 45 coupled to the ball screw 44 moves together to move the plunger 45, Thereby enabling the holder 46 to move forward and backward. In the embodiment of FIG. 3, the plunger 45 and the ball screw 44 are described as being provided as separate components, but in some cases, the plunger 45 and the ball screw 44 may be merged into one component And it is to be understood that the present invention is within the technical scope of the present invention.

On the other hand, a first gear 41 is attached to the end of the shaft 43. The first gear 41 meshes with the second gear 42. The second gear 42 is connected to the power generation section 30. Therefore, the rotational power generated by the power generating unit 30 is transmitted to the first gear 41 and the shaft 43 through the second gear 42. [

4 shows the body 20, the plunger 45, the piston holder 46 and the ball screw 44 according to an embodiment of the present invention in a simplified form for the purpose of illustrating the mutual coupling relationship therebetween have.

A plunger 45 of a shape as shown in Fig. 4 (but not limited thereto) can be inserted into the wide portion provided at the right end of the rail formed in the body 20. [ Since the middle waist portion of the plunger 45 is machined so that its width corresponds to the width of the remaining narrow portion excluding the wide portion of the rail, the waist portion of the plunger 45 is movable back and forth along the rail.

The piston holder 46 is detachably coupled to the upper protruding portion of the plunger 45 relative to the rail in a state in which the plunger 45 is mounted on the rail of the body 20. [ The piston holder 46 may be prepared in various sizes and shapes depending on the type of syringe used. This piston holder 46 is releasably coupled to the plunger 45 to achieve additional beneficial effects that can accommodate syringes of various sizes as a single motorized pillar injector.

The ball screw 44 is formed in a structure that can be easily coupled to a hollow structure that is partially open at the lower protruding portion of the plunger 45.

5 shows a power generation unit 30 according to an embodiment of the present invention. The power generating section 30 of the present invention includes a motor 31, a speed reducer 32 and a sensor 33 and a control section not shown.

The current applied from the power source through the control unit is transmitted to the motor 31 and the generated power is transmitted to the speed reducer 32. [ The speed reducer 32 is connected to the second gear 42. According to the preferred embodiment of the present invention, the motor 31 is controlled to operate at a rotation speed of 7,650 rpm and a torque of 4.06 Nmm, and the speed reducer 32 has a reduction ratio of 157: 1. Accordingly, the rotational speed and torque of the second gear 42 are as follows.

Rotation speed: 7,650 rpm / 157 = 48.73 rpm

Torque: 4.06 Nmm * 157 = 637.42 Nmm

The rotational speed and the torque are preferably kept constant during the operation of the electric pillar injector according to the present invention. To this end, a sensor 33 is electrically connected to the motor 31. The sensor 33 may measure the rotational speed and / or torque of the motor 31 and transmit the measured value to a control unit (not shown). The control unit adjusts the current to be applied to the motor 31 in comparison with the reference value stored in advance, which is the measurement value from the sensor 33.

6 is a view for explaining an appropriate rotation speed and torque generated from the power generating unit 30 and the gear units 41 and 42 according to an embodiment of the present invention.

In the preferred embodiment of the present invention, the diameters of the first gear 41 and the second gear 42 are selected at a ratio of 1: 2. In this case, the rotational speed and torque of the first gear 41 are as follows.

Rotation speed: 48.73 rpm * 2 = 97.46 rpm

Torque: 637.42 Nmm / 2 = 318.71 Nmm

According to a preferred embodiment of the present invention, the lead of the shaft 43, i.e. the distance traveled in one rotation, can be set to 4 mm. In this case, the moving speed of the ball screw 44 and the plunger 45 and the piston holder 46 attached to the shaft 43, that is, the final injection speed, is as follows.

Feed rate: 97.46 rpm * 4 mm = 389.84 mm / min

This rate of injection was evaluated to be suitable for the practitioner to perform the procedure efficiently. On the other hand, the injection torque of 318.71 Nmm was evaluated as a torque suitable for injecting a high viscosity filler having a viscosity of about 400 G or more.

7 is a view showing a structure of a syringe holder according to an embodiment of the present invention.

The fixing hook 47 is hinged to the hole formed in the plunger 45. [ The syringe 10 is inserted into the piston holder 46 which is coupled to a portion of the plunger 45 protruding upward from the rail and the inserted state of the syringe 10 The lower part of the piston of the syringe 10 is restricted by the piston holder 46 and the upper part of the piston of the syringe 10 is limited by the fixing hook 47. Therefore, It is possible to inject the filler while being stably held in the piston holder 46 during the forward and backward movement of the piston 46. It has been found that when the high viscosity filler according to the present invention is scanned, the syringe 10 is subjected to a large pressure as compared with the case of scanning with a general low viscosity filler. According to the results of repeated experiments conducted by the present inventor, it is found that, when the fixed hook 47 having the above-described structure is used, even when a strong pressure is applied to the injector 10 during the injection of the high viscosity filler, As shown in FIG.

A further advantage is achieved by the fact that the locking hook 47 is mounted on the plunger 46 rather than the piston holder 46. This is related to the possibility of replacing the piston holder 46. As described above, various types corresponding to the shape and size of the syringe 10 to which the piston holder 46 is applied can be used. If the fixed hook 47 is mounted on the piston holder 46, the fixed hook 47 must be attached to each of the various types of piston holders 46 used. This is because the factor that raises the unit price of the piston holder 46 . It is not necessary to form the fixing hook 47 for each replaceable piston holder 46 when the fixing hook 47 is hinged to the plunger 46 as in the preferred embodiment of the present invention, There is an advantage of being advantageous in terms of utilization of the light emitting diode 46.

Finally, a description will be given of a manner in which the control unit, which is omitted in the drawing, which is one component of the power generating unit 30 of the present invention, controls the motor 31 in various operating modes.

In Fig. 8, linear mode and non-linear mode are shown as an example of this operation mode.

In the linear mode, the control unit applies a current to the motor 31 so that the motor 31 rotates at a constant speed without interruption.

In contrast, in the logic near mode, the control section intermittently applies current to the motor 31. [ Thereby, the plunger 45 can intermittently advance the piston of the syringe 10. For example, when the current is applied for one second and the current is interrupted for one second, the motor is operated with the same torque, resulting in advancing the piston of the syringe 10 with the same pressure, The speed can be halved. The time to apply the current and the time to cut off can be set in several steps. For example, it is possible to provide the logic near mode in two to three steps. As a result, the advancing speed can be controlled in several steps while advancing the piston with the same pressure. Depending on the condition of the practitioner, or the type of therapy being performed, it may be necessary to adjust the filler infusion rate. In addition, there may be steps where a large amount of filler is injected for efficiency without requiring great attention during the procedure, and a step where relatively care must be taken when the filler is filled in a specific region. The injection of the high viscosity filler is applied to the piston of the syringe 10 while a constant high pressure is applied to the piston of the syringe 10, .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Those skilled in the art will appreciate that various modifications and changes may be made thereto without departing from the scope of the present invention.

Accordingly, the spirit of the present invention should not be construed as being limited to the above-described embodiments, and all ranges that are equivalent to or equivalent to the claims of the present invention as well as the claims .

10: Syringe
20: Body
30: Power generation unit
31: Motor
32: Reducer
33: Sensor
41: first gear
42: Second gear
43: Shaft
44: Ball Screw
45: plunger
46: Piston holder
47: Fixed hook

Claims (6)

The injection port of the syringe is gripped at one end of the body having the rail, the piston of the syringe is gripped to the piston holder, and the rotary motion of the motor receiving the current from the power source is switched to the forward movement to advance the piston holder, 1. An electric filler injector for injecting a filled filler,
A plunger in which an upper portion relative to the rail is engaged with the piston holder,
A ball screw coupled to a lower portion of the rail with the plunger installed on the rail,
A shaft inserted into the hollow of the ball screw and having a thread corresponding to an internal hollow thread of the ball screw,
A first gear coupled to an end of the shaft,
A second gear engaged with the first gear,
And a power generation unit for transmitting rotational power to the second gear,
Wherein the power generating unit includes a motor, a speed reducer, a sensor, and a control unit,
The motor is power-coupled to the speed reducer, the speed reducer is power-coupled to the second gear,
The sensor senses the torque and / or the rotational speed of the motor to generate a signal, transmits the generated signal to the control unit,
Wherein the control unit executes feedback control based on a signal from the sensor,
The torque of the motor is increased primarily through the speed reducer so that a first-order increased torque is applied to the second gear, and the torque of the first-increased second gear is transmitted to the first gear, The second gear is secondarily increased by the gear ratio of the first gear and the second gear to apply the second increased torque to the first gear,
And a fixing hook for fastening the piston end of the syringe from above,
The fixed hook being hinged to the plunger,
Electric filler injector.
The method according to claim 1,
Wherein the speed reducer has a reduction ratio of 157: 1, and the gear ratio of the first gear and the second gear is selected to be 1: 2.
Electric filler injector.
delete 3. The method of claim 2,
Wherein the control unit is capable of controlling the motor in a plurality of operation modes,
Wherein the plurality of operation modes include a linear mode for rotating the motor at a constant speed and a logic near mode for intermittently rotating the motor.
5. The method of claim 4,
Wherein the motor is controlled so as to rotate at the same torque as in the linear mode in the linear near mode and the speed at which the motor rotates is controlled at the same rotational speed as in the linear mode.
6. The method of claim 5,
Wherein the plurality of steps are included in the logic near mode and the advance speed of the plunger is controlled by gradually increasing the stopping time of the motor.

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