KR101587235B1 - Electronic drug injection device - Google Patents

Abstract

The present invention relates to an electric drug injection device which injects drugs into a skin and, more specifically, to an electric drug injection device where a drug is injected into a skin by directly embedding a syringe storing a drug. A needle is inserted into an swollen skin area by an embedded vacuum pump, and the drug is injected after a sensor detects the needle whch is completely inserted into the skin. Pain is reduced through delivering vibration in an insertion process.

Description

[0001] ELECTRONIC DRUG INJECTION DEVICE [0002]

The present invention relates to an electrosurgical drug injection device for injecting a drug into skin, and more particularly, to a drug injection device for injecting drugs into skin by directly inserting a syringe containing a drug, The present invention relates to an electromyographic injection device for injecting a drug after a needle is inserted and vibration is transmitted in the insertion process to reduce pain and a sensor detects that the injection needle is completely inserted into the skin.

In general, a method of penetrating a drug into the skin is used as a treatment method for skin aesthetics and health, and obesity treatment such as wrinkles, acne removal, exfoliation, hair loss treatment, etc. Examples of such treatment include There is a method of maximizing the drug effect by applying a drug or a cosmetic product on the drug to quickly and intensively penetrate the drug, and a method of stimulating the skin with a needle to induce the formation of collagen by the reflection action of the human body.

When a small number of microholes are formed in the human skin, the microorganisms are sprouted by the self-sustaining force of the damaged skin tissue. When the therapeutic drug is applied to the site where the microhole is formed, the drug can penetrate into the skin through the microhole quickly. That is, the dermis tissue is newly constituted and rearranged due to the natural wound healing action caused by the penetration of a large number of needles into the skin, so that the scar becomes shallow, the skin is tightly pulled and the fine lines are reduced and the pigmentation is improved, It can be revived with clean skin.

In recent years, a number of drug injection devices for skin have been supplied in order to facilitate the use of the needles for skin improvement.

Korean Patent Registration No. 10-1203887 (registered on November 16, 2012, hereinafter referred to as 'Prior Art 1') proposed a drug injection device for skin treatment. The prior art document 1 discloses a syringe injecting medicine into skin through an end needle; A transfer guide assembly coupled with the cylinder of the syringe accommodating the drug to allow reciprocation of the cylinder within a limited range along the direction in which the drug is injected; An injection assembly mounted on one side of the transport guide assembly and rotated by a driving force to move the rod of the cylinder to the needle side in conjunction with movement of the transport guide assembly; And the above-described transfer guide assembly and the injection assembly described above, and when the aforementioned needle end contacts the skin and the above-described transfer guide assembly moves to one end of the limited range described above, And a control portion for stopping the operation of the injection assembly described above when the needle guide portion is separated from the skin and the transfer guide assembly described above moves toward the other end side of the limited range described above, And the rod is moved to the needle side by a distance to retreat to the needle side.

The prior art document 1 is a device for directly injecting a syringe and injecting drugs by electric power, but it is difficult to use in a field where a small number of drugs are injected into a plurality of ranges because only one injection needle is provided.

Korean Patent Registration No. 10-1153700 (Registered on June 11, 2012, hereinafter referred to as 'Prior Art Document 2') proposed a drug injection device for skin. In the above-mentioned prior art document 2, a drug injection device for a skin, which is mounted on a complex device for skin, comprises a body part mounted on the fixed part of the drug injection device of the complex device for skin, a connection drive shaft part provided on the body part, An operating portion provided on the body portion and performing linear motion by a connecting drive shaft portion and a needle holding portion provided on the operating portion, wherein the body portion is formed in a tubular shape, and a mounting hole is formed inside, A support tube having a guide hole protruding from the diaphragm of the body and having a guide hole formed therein, a curved groove formed in the skin-contacting portion of the body, And a first support protrusion provided on the inner circumferential surface of the mounting hole of the body so as to form a slide groove, And a connection shaft which is coupled to the support tube and the body and has one side portion disposed in the installation hole of the body, wherein the connection shaft is provided with a binding member at one side portion located in the installation hole of the body, And a supporting surface is formed on the other side portion where the binding member is formed, and the operation portion is formed in the body of the body portion, A needle insertion hole is formed in the inside of the operation member so that one side is opened, a circumferential groove is formed in an inner circumferential surface of the needle insertion hole, and on the other side where the needle installation hole is formed, Wherein the extension member is formed with a binding hole communicating with the needle installation hole of the operation member, A guide projection is formed on an outer circumferential surface of the extension member to be engaged with a slide groove formed in an installation hole of the body, and a cover portion covering the needle fixing portion is formed Wherein the cover portion includes a cover member which is covered by a needle fixing member of the needle fixing portion, a needle height limiting member is formed inside the cover member, and a jig fixing groove is formed on the inner circumferential surface of the needle fixing member of the needle fixing portion And a fastening protrusion is formed in the fastening hole.

In the prior art document 2, a plurality of needles are mounted on the needle fixing member so that a plurality of holes are formed in the skin in a single operation. However, since the structure does not inject drugs directly through the needles, it is difficult to perform operations through a drug injector.

Therefore, it is possible to directly use a syringe containing a drug, and it is possible to inject drugs into a wide range by a plurality of perforations of the skin in a single operation, and a new structure drug It is necessary to study the injection device.

Korean Patent Registration No. 10-1203887 (Registered on November 16, 2012): Drug injection device for skin treatment Korean Patent Registration No. 10-1153700 (Registered on June 11, 2012): Drug injecting device for skin

Accordingly, an electromedical drug injector according to the present invention comprises:

A plurality of needles provided with a plurality of needles are installed at the front end, and a plurality of drugs are injected into the large area of the skin by one operation by directly feeding the drugs of the injector, .

Another object of the present invention is to provide a device that can relieve pain when the needle is inflated into the skin by inflating or vibrating the skin by the suction force.

In order to solve the above-described problems, an electric drug injection device of the present invention comprises:

A drug injector for injecting drugs into the skin is provided with an electric motor and a battery connected to the piston rod inside the body case and a switch is provided on the outer surface to intermittently supply power to the electric motor, A main body assembly including a control unit for operating the electric motor to move the piston rod in the axial direction and controlling the various operation signals; A syringe which is detachably coupled to a front end of the main assembly and houses a syringe for holding the drug in a watertight manner by a piston, and a syringe which moves the piston forward by a piston rod pressing force of the main assembly, A holder assembly; A syringe main body coupled to a syringe discharge port, which is a front end of the syringe holder assembly, and a plurality of needles provided on the front surface of the syringe body for discharging the delivered drug through a plurality of needles, And a cap assembly which is mounted on the front end of the assembly so as to be slidable back and forth and which is pushed rearward when external pressure is applied in the axial direction to expose multiple needles.

The cap of the cap assembly is configured to allow a part of the cap to be inserted into the syringe holder assembly when an external pressure is applied to the syringe holder assembly and to push the cap backward by an elastic restoring force when the external pressure applied to the cap is removed through the elastic member, . ≪ / RTI >

The syringe holder assembly is a cylindrical member for inserting and fixing the syringe from the front end. The inner surface of the rear end is formed with a step to define the depth of insertion of the syringe. On the outer surface of the rear end, A combined syringe holder; And a holder case having an insertion hole formed at a front end thereof and formed with a ring-shaped locking protrusion in the axial center direction at an edge thereof and a coupling means formed at an inner surface of a rear end thereof to be mounted to a part of coupling means of the injector holder, Wherein a cap is formed on the rear end of the holder case so as to protrude outwardly through the insertion hole by forming a ring-shaped locking protrusion protruding in a direction orthogonal to the shaft, and an elasticity is provided between the rear end of the engaging jaw of the cap and the front end of the holder case So that the cap can always be pressed to the front side through the member.

The syringe holder is provided with an elastic inner groove for partially inserting an elastic member. When a sensor is mounted on the rear surface of the cap of the cap or on the front end of the diaphragm holder and the front end of the cap contacts the front of the syringe holder, Power can be supplied to actuate the piston rod to allow the syringe drug to be supplied in multiple needles.

In addition, the cap may be a cylindrical shape having a front end opened, or may have a porous shape in which a through hole corresponding to each needle of a multi-needle is formed on a face closed at the front end.

In addition, a point light may be provided on the outer surface of the ring-shaped latching jaw on the front surface of the holder case, or a plurality of point lights may be provided at regular intervals to supply light from the battery of the body assembly, can do.

The main assembly may be provided with a vacuum pump through which power is supplied from a battery to the vacuum pump. The suction port of the vacuum pump and the cap of the cap assembly may communicate with the vacuum suction line.

The body assembly is detachably coupled to a coupling means formed on the outer surface of the rear end of the syringe holder, and is coupled to the rear end surface of the syringe holder at the rear of the coupling means. The syringe holder has a rear end connected to the suction hole of the main body case and a front end of the syringe holder is connected to the front inner side of the holder case And the cap of the cap assembly forms an annular projecting syringe support projection to face the center of the tube from the inner surface of the rear end of the cap assembly, A vacuum suction line is formed in the suction pipe, a suction hole of the main body case, The suction passage of the syringe holder, the front inner space of the holder case, the cap suction hole of the cap, and the cap interior.

In the cap assembly, a sensor may be mounted on the front end of the cap so that the vacuum pump can be operated by sensing the sensor. Four sensors installed at the front end of the cap are equally spaced, It can be operated.

In addition, the main body assembly may further include a vibration motor that generates vibration by receiving power from a battery, and the main body case of the main body assembly includes a display window indicating an operating state, an operation button, The drug injection switch for interrupting the power supply of the electric motor may be formed on the side or rear end of the main body case, or may be formed on the side and the rear end of the main body case.

The electric drug injector of the present invention by the above-

The cap assembly, the syringe holder assembly, and the body assembly are sequentially connected to each other so that when the multi-needle in the cap assembly is exposed to the outside and inserted into the skin, the electric motor of the body assembly is operated to draw the piston rod, Injects the drug stored in the piston rod into the skin through the multi-needle, and stops the operation of the electric motor when the multi-needle is released from the skin, thereby stopping the drug injection. It is possible to provide an electric drug injection device for automatically performing the operation.

Especially, it is possible to relieve the pain by adding vibration by the vibration device when the multi-needle is inserted into the skin, and by sucking around the skin where the multi needle is inserted by the vacuum suction device, The injection can be accurately performed, and the effect of increasing the drug absorption rate can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic cross-sectional view showing an electric drug injection device according to an embodiment of the present invention; FIG.
Figures 2A-2E are schematic diagrams showing the main part according to the invention.
FIG. 3 is a schematic cross-sectional view illustrating an electric drug injection device provided with a vibration motor according to the present invention. FIG.
FIG. 4 is a schematic cross-sectional view illustrating an electric drug injection device having a vacuum pump according to the present invention. FIG.
5A and 5B are a perspective view and an operation state view showing an example in which a sensor is installed at the end of the cap.
FIG. 6 is a plan view showing an electric drug injection device according to an embodiment of the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the appended drawings illustrate only the contents and scope of technology of the present invention, and the technical scope of the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the technical idea of the present invention based on these examples.

1 is a schematic cross-sectional view illustrating an electric drug injection device according to an embodiment of the present invention.

As described above, the electroless medication injection device 10 according to the present invention is constituted by coaxially coupling the body assembly 20, the syringe holder assembly 30, and the cap assembly 40.

The main body assembly 20 includes a main body case 21, an electric motor 22 installed inside the main body case, a battery 23 for supplying power to the electric motor, And a piston rod 25 is connected to the electric motor 22 so that the piston rod is advanced or retracted in the axial direction during operation of the electric motor.

At this time, the forward and backward movement of the piston rod 25 may be performed by a hydraulic cylinder, or a rack gear may be formed on the piston rod to provide a pinion gear to the motor or reduction gear shaft, Various known techniques for moving the piston rod in the forward and backward directions may be applied. The piston rod is supported by using a plurality of auxiliary supports extending from the inner wall of the body assembly, so that the piston rod can be moved back and forth only in the axial direction and can restrict lateral movement.

In addition, the battery 23 supplies power to each part of the electric medicament injecting apparatus. The battery 23 forms a charging terminal 212 on one side of the main body case 21 to charge the power source, So that the battery can be replaced with a standardized battery.

A switch 211 is provided on the outer surface of the main body case 21 so as to intermittently supply power to the electric motor 22 to adjust the rotational direction of the electric motor to forward or backward the piston rod 25, Can be determined. At this time, various operation modes can be set such that the advancement of the piston rod can be performed only when there is a detection signal of a sensor 34 described later, and can be made only when there is no detection signal of the sensor.

Next, the syringe holder assembly 30 is detachably coupled to the front end of the main assembly 20. A syringe 31 containing a drug is contained in the syringe holder assembly and the piston rod 25 of the body assembly is engaged with or adhered to the piston 311 of the syringe to pressurize the piston during forward movement of the piston rod, The drug is discharged to the discharge port 312 in the front of the syringe.

The structure of the injector holder assembly 30 may include a syringe holder 32 for inserting and fixing the syringe 31 and a holder case 33 for containing the syringe holder.

1 and 2A, the syringe holder 32 is inserted into the cylindrical member through the front end thereof, and the inner surface of the rear end of the syringe holder 32 is formed with a step 321 for defining the depth of insertion of the syringe . A coupling means 322 in the form of a screw or a hook is formed on the outer peripheral surface of the rear end, and a separator 323 protrudes from the central portion of the coupling means to be divided into an upper coupling means and a lower coupling means. The coupling means 322 at the rear of the separator of the syringe holder 32 is detachably coupled to the coupling means 213 at the front end of the main body case 21 of the main assembly.

The holder case 33 is formed with a ring-shaped locking protrusion 331 having a front end extending in the axial center direction, an insertion hole into which the cap is inserted in the locking protrusion, And is detachably coupled to the coupling means 322 in front of the separator of the syringe holder. The insertion hole formed inside the latching jaw 331 is formed to have a larger diameter than the outer diameter of the syringe so that a cap 42 described later is inserted between the outer surface of the syringe 31 and the latching jaw 331.

In addition, the cap assembly 40 includes a multi-needle 41 and a cap 42 containing the multi-needle.

The multi-needle 41 includes a needle body 411 coupled to a discharge port 312 at a front end of the syringe of the syringe holder assembly, and a plurality of needles 412 provided on a front surface of the needle body. The needle body portion 411 has a channel communicated with the discharge port of the syringe and is formed of an acupuncture pipe body so that the drug discharged from the syringe discharge port 312 flows into the needle body portion 411 and passes through the needle point 412 Let it discharge to the skin.

The cap 42 is slidably mounted to the front end of the syringe holder assembly 30 in a forward and backward direction while containing multiple needles 41. The cap 42 is formed with a front end opened as shown in FIG. 1, and a rear end of the cap 42 is formed with a ring-shaped engagement protrusion 421 extending in an outward direction perpendicular to the axis. The cap is inserted forwardly from the rear of the holder case, so that the engagement stop 421 of the cap engages with the engagement protrusion 331 of the holder case to prevent the cap from escaping while limiting the length of the forward protrusion. When the external pressure is applied in the axial direction from the front, the cap 42 is pushed backward to expose the multiple needles 41 so that the cap is pushed backward by the skin when the human body is pressed against the skin so that the multiple needles are inserted into the skin. That is, the cap 42 is inserted between the outer surface of the syringe 31 and the inner surface of the locking protrusion 331 of the holder case, and is capable of sliding movement in the axial direction.

2B, the cap 42 may be provided with a cap front end closed, and a plurality of through holes 422 corresponding to the respective needles of the multi needles may be provided in a closed form on the closed face. have.

The elastic member 35 is further interposed between the cap 42 and the feeler holder 32 so that the cap is always advanced forward when there is no external pressure. 2C, the cap 42 is installed by inserting a part of the outer surface of the front side of the syringe, and the holder case 33 is attached to the rear side of the latching jaw 331 of the holder case, An elastic member 35 is interposed between the rear surface of the engagement jaw of the cap and the front end surface of the syringe holder so that the cap is always pushed forward in the axial direction by the elastic force of the elastic member.

The elastic member may be in the form of a spiral wound spring to enclose the feeler, or may be provided in various forms such as the bottom of the stopper 421 of the cap or the spring integrally coupled to the front end surface of the syringe holder.

For example, referring to FIGS. 2d and 2e, the elastic members 35 are arranged at equal intervals of 2 to 4 in the space between the outer surface of the syringe 31 and the inner surface of the holder case 33, . The plurality of elastic members 35 may be formed by forming an elastic member inner groove 324 having a certain depth from the front surface of the syringe holder in the axial direction backwardly rather than simply arranging the elastic members 35 in the space between the two members, And the lower end of the elastic member is fixed to the syringe holder 32 so that the external force is applied to the cap and the elastic member 35 is pushed rearward, the elastic member 35 is reduced in length and flows into the elastic member inner groove 324, It is possible to limit the degree to which the jaw 421 is pushed rearward while contacting the entire surface of the syringe holder.

Further, the sensor 34 may further be mounted on the rear surface of the latching jaw 421 of the cap or on the front surface of the syringe holder. When the cap 42 is sufficiently pushed backward, the needle 412 of the multi-needle 41 is in a state of being infiltrated into the skin, so that the sensor 34 senses it and operates the electric motor 22. That is, when sensing is performed by the sensor 34, the control unit 24 transfers the power of the battery 23 to the electric motor 22 to operate the piston 23 so that the piston rod 25 is moved forward to move the piston 311 of the syringe. The drug stored in the injector by the movement of the piston is transferred to the multi needle 41 through the discharge port 312 and the drug is injected into the skin through the plurality of needles automatically, .

3, the electromotive injection device 10 of the present invention may further include a vibration motor 26 at one side of the main body case 20 of the body assembly 20.

The vibration motor 26 is operated before inserting the multi-needle 41 into the skin, so that the needle 412 alleviates pain upon penetration into the skin, and transmits vibration periodically to the skin even when the drug is injected The drug absorption can be promoted and the skin improvement effect by the drug can be promoted.

When the power source of the vibration motor 26 is turned on through the switch 211 of the drug infusion device, the control unit 24 supplies power from the battery 23 to the vibration motor 26 to generate vibration . The vibration motor can be selected from various known types. In addition to the operation by the power source, when the touch sensor is mounted on the front end of the cab and the touch sensor is sensed, operation by power supply can be performed.

4, the electric medicament injecting apparatus 10 of the present invention is further provided with a vacuum pump 27 inside the main body case 21 and communicating the inside of the cap 42 of the cap assembly with the vacuum pump 27 A vacuum suction line 28 may be further provided.

The vacuum pump 27 is sucked through the suction port and then discharged to the outside of the main body case to form a suction force. A vacuum suction line 28 is formed from the suction port of the vacuum pump to the inside of the cap so that the suction force is transmitted.

For example, the main body assembly 20 is provided with a coupling means 213 in the form of a screw or a hook on the inner surface of the front end of the main body case 21 so as to be detachably coupled with the coupling means 322 formed on the outer surface of the rear end of the syringe holder 32 A support step 214 is formed at the rear of the coupling means 213 of the main body case to be in contact with a rear end surface of the syringe holder. A suction hole 215 is formed in the support step, And the suction hole 215 communicate with the suction pipe 281. The syringe holder 32 has a suction passage 325 extending in the axial direction so that the rear end thereof communicates with the suction hole 215 of the main body case and the front end thereof communicates with the front inner side space 333 of the holder case. In addition, the cap 42 of the cap assembly forms a syringe support protrusion 423, which is an annular projection so as to face the center of the tube at the inner surface of the rear end, and the cap suction port 423, Thereby forming a through hole 424.

The vacuum suction line 28 is connected to the vacuum suction line 28 through the suction pipe 281, the suction hole 215 of the body case, the suction channel 325 of the syringe holder, the front inner space 333 of the holder case, And a line communicating with the inside of the cap.

At this time, the outer surface of the retaining step 421 of the cap and the inner surface of the holder case 33 are formed to be close to each other, so that a decrease in the suction force of the vacuum pump through the gap between the two members can be minimized. As a method of closely forming the two members, a variety of sealing means may be used, such as designing to minimize the gap between the two members, inserting a packing tube between the two members, inserting an O- It is possible to prevent the suction force from lowering.

Further, the vacuum suction line of the present invention is not limited to the illustrated method, but includes various examples in which the suction force of the vacuum pump can be transmitted to the inside of the cap.

The operation of the vacuum pump may be performed by a switch, or a sensor 425 may be mounted on the front end of the cap as shown in FIG. 5A so that the vacuum pump is operated by sensing the sensor.

For example, two sensors 425 installed at the front end of the cap are installed at regular intervals, and the sensor 425 is connected to the control unit by wire or wireless. When both sensors are in contact with the skin, So that a suction force is generated.

5B, when the front end of the cap is partially in contact with the skin 50 and only a part of the plurality of sensors is sensed, the control unit sets the suction force of the vacuum pump to the strong mode So that the skin is sucked into the cap without being sealed by the cap, and when the sensing is performed in all of the plurality of sensors, the control unit forms the suction force of the vacuum pump in the weak mode so as to restrict the degree of sucking the skin into the cap The suction force of the vacuum pump can be adjusted according to the degree of detection of the sensor.

Next, the electric drug injector 10 of the present invention may further include a point light 334 on the outer surface of the ring-shaped hooking jaw on the front surface of the holder case 33. The point light 334 may be an LED or a small light bulb and is supplied with power from the battery 23 of the body assembly so that light irradiation is performed on the operation part.

That is, when the power source of the electric-powered drug injection device 10 is turned on, the point illumination 334 illuminates the light in the forward direction of the cap 42, and points are displayed on the skin, (41) may be inserted to allow drug injection.

The point illumination 334 may be formed so that light irradiation is performed, or a plurality of point lights are arranged at equal intervals on the latching jaw 331 on the front surface of the holder case, And the installation position of the point illumination may be provided on the front end of the cap 42 or on one side of the multi needle in addition to the latching jaw 331 on the front surface of the holder case.

6, a display window 216 is provided on the outer surface of the main body case 21 to display various information such as whether the power is on and off, whether the syringe is mounted, whether the vacuum pump or the vibration pump is operated, Further, it is possible to provide additional operation buttons so that necessary information can be confirmed.

In addition, a speaker 217 may be installed at one side of the body case to output a sound indicating that the medicine is being injected or the operation is completed, so that the operator and the patient can easily recognize the procedure.

In addition, a charging terminal 212 may be provided on one side of the main body case, and the power may be supplied by various methods such as being used by charging or by replacing a battery.

In addition, the electromechanical injection device 10 of the present invention is provided with a switch 211 on the side or rear end, or on the side and the rear, of the main body case 21 so as to selectively operate the switch in accordance with a direction and a procedure part It is possible to provide more convenience.

The operation state of the electric drug injector of the present invention constructed as described above will be briefly described,

First the holder case 33 is separated from the syringe holder 32 and then the syringe 31 stored in the syringe holder 32 is inserted into the holder case 32 and the multi needle 41 is attached to the discharge hole 312 of the syringe holder The holder case 33 provided with the cap 42 at the front is attached to the syringe holder 32. [

When the power is turned on after the installation is completed, light is irradiated from the point illumination 334, and the electrosurgical drug injection device is contacted to the surgical skin of the subject by the irradiated light.

At this time, the sensor 425 installed at the front end of the cap 42 operates the vacuum pump 27 by sensing the skin, thereby allowing the skin to be sucked into the cap 42, thereby increasing the thickness of the skin. In addition, as the cap 42 pushed to the skin moves backward, the multi-needle 41 inside the cap is exposed to the outside, and the needle of the multi-needle is inserted into the skin. In this process, the vibration motor 26 operates to generate vibration, thereby relieving the pain when the needle is inserted into the skin.

The cap 42 which is pushed rearward at the time when the multi needle is inserted into the skin is brought into contact with the front surface of the syringe holder 32 so that the sensor 34 installed on the front surface of the syringe holder And the operator operates the switch 211 directly to operate the electric motor 22 and the piston rod 25 is pulled forward by the operation of the electric motor. In this process, the piston rod 25 presses the piston 311 of the syringe so that the medicine stored in the syringe discharge port 312 is transferred to the multi needle 41 through the syringe discharge port 312 by the pressing force, ). ≪ / RTI >

When the drug infusion is completed and the drug infusion device 10 is separated from the skin, the cap 42 is moved to the front side so that the latching jaw of the cap is separated from the sensor 34 on the front surface of the syringe holder. 22) is turned off to emphasize the input of the drug, the drug can be easily injected into the skin by using the multi-needle and electric transfer method.

10: Electrolytic drug injection device
20: Body assembly
21: main body case 22: electric motor
23: battery 24:
25: piston rod 26: vibration motor
27: Vacuum pump 28: Vacuum suction line
211: switch 212: charging terminal
213: coupling means 214: support step
215: suction hole 216: display window
217; Speaker portion 281: suction pipe
30: Syringe holder assembly
31: syringe 32: syringe holder
33: holder case 34: sensor
35: elastic member
311: piston 312:
321: step 322: engaging means
323: separator 324: elastic member inner groove
325: Suction flow path 331:
332: coupling means 333: inner space
334: Point lighting
40: cap assembly
41: multiple needle 42: cap
411: Needle portion 412: Needle portion
421: latching jaw 422: through hole
423: syringe support projection 424: cap suction hole
425: Sensor
50: Skin

Claims (13)

A drug infusion device for injecting a drug into the skin,
An electric motor and a battery are connected to the piston rod in the case body. A switch is provided on the outer surface of the case to intermittently supply power to the electric motor. When the electric motor is supplied with electric power, A main body assembly including a control unit for moving the main body in the forward and backward directions and controlling various operation signals; A syringe which is detachably coupled to a front end of the main assembly and houses a syringe for holding the drug in a watertight manner by a piston, and a syringe which moves the piston forward by a piston rod pressing force of the main assembly, A holder assembly; A syringe main body coupled to a syringe discharge port, which is a front end of the syringe holder assembly, and a plurality of needles provided on the front surface of the syringe body for discharging the delivered drug through a plurality of needles, And a cap assembly which is mounted on the front end of the assembly so as to be slidable back and forth and which is pushed rearward when an external pressure is applied in the axial direction to expose multiple needles,
A vacuum pump is installed in the main body assembly to receive power from a battery, a vacuum suction line communicates with a suction port of the vacuum pump and a cap inside the cap assembly,
In the cap assembly, a sensor is mounted on the front end of the cap so that a vacuum pump is operated by sensing the sensor. Two to four sensors installed at the front end of the cap are installed at regular intervals. When all the sensors are detected, Wherein the medicament-injecting device comprises: A drug infusion device for injecting a drug into the skin,
An electric motor and a battery are connected to the piston rod in the case body. A switch is provided on the outer surface of the case to intermittently supply power to the electric motor. When the electric motor is supplied with electric power, A main body assembly including a control unit for moving the main body in the forward and backward directions and controlling various operation signals; A syringe which is detachably coupled to a front end of the main assembly and houses a syringe for holding the drug in a watertight manner by a piston, and a syringe which moves the piston forward by a piston rod pressing force of the main assembly, A holder assembly; A syringe main body coupled to a syringe discharge port, which is a front end of the syringe holder assembly, and a plurality of needles provided on the front surface of the syringe body for discharging the delivered drug through a plurality of needles, And a cap assembly which is mounted on the front end of the assembly so as to be slidable back and forth and which is pushed rearward when an external pressure is applied in the axial direction to expose multiple needles,
A vacuum pump is installed in the main body assembly to receive power from a battery, a vacuum suction line communicates with a suction port of the vacuum pump and a cap inside the cap assembly,
In the cap assembly, a sensor is mounted on the front end of the cap so that the vacuum pump is operated by sensing the sensor. Two to four sensors installed at the front end of the cap are installed at regular intervals. When only a part of the sensors is detected, Wherein the suction force is operated in a strong mode, and when all the sensors are sensed, the suction force of the vacuum pump is operated in the weak mode. 3. The method according to claim 1 or 2,
The cap of the cap assembly is configured to allow a part of the cap to be inserted into the syringe holder assembly when an external pressure is applied to the syringe holder assembly and to push the cap backward by an elastic restoring force when the external pressure applied to the cap is removed through the elastic member, To the patient's body. The method of claim 3,
The syringe holder assembly is a cylindrical member for inserting and fixing the syringe from the front end thereof. The inner surface of the rear end is formed with a step for defining an inserting depth of the syringe, and a rear end outer surface of the syringe holder is coupled with the front end side of the body assembly A syringe holder; And a holder case having an insertion hole formed at a front end thereof and a ring-shaped locking protrusion formed at an edge thereof in the axial center direction, and a coupling means formed at an inner surface of the rear end thereof to be mounted to a part of the coupling means of the syringe holder,
Wherein the cap of the cap assembly is provided at a rear end thereof with a ring-shaped locking protrusion protruding in a direction orthogonal to the shaft, the locking protrusion protruding outwardly through the insertion hole from the inside of the holder case,
Wherein the cap is always urged to the front side through an elastic member between the rear end of the engaging jaw of the cap and the front end of the holder case. 5. The method of claim 4,
The syringe holder is provided with an elastic inner groove for partially inserting the elastic member,
When a sensor is mounted on the rear surface of the cap of the cap or the front end of the cap, and the sensor is sensed by the engagement of the cap jaw and the front surface of the syringe holder, power is supplied to the electric motor to actuate the piston rod, Wherein the medicament-injecting device comprises: 5. The method of claim 4,
Wherein the cap has a cylindrical shape with a front end opened, or has a porous shape having a through hole corresponding to each needle of a multi-needle on a face closed at a front end thereof. 5. The method of claim 4,
A point light is provided on the outer surface of the ring-shaped latching jaw on the front surface of the holder case, or a plurality of point lights are provided at equal intervals, and power is supplied from the battery of the body assembly, ≪ / RTI > 5. The method of claim 4,
The body assembly is detachably coupled to a coupling means formed on the outer surface of the rear end of the syringe holder, and is coupled to the rear end surface of the syringe holder at the rear of the coupling means. A support step is formed at the support step, a suction hole is formed in the support step, the suction hole is communicated with the built-in vacuum pump through the suction pipe,
Wherein the syringe holder has a suction channel which is long in the axial direction so that the rear end communicates with the suction hole of the body case and the front end communicates with the front inner space of the holder case,
Wherein the cap of the cap assembly is formed with an annular projecting syringe support protrusion so as to face the center of the tube at an inner surface of a rear end thereof and a cap suction hole communicating with the inside of the cap and the holder case is formed in the syringe support protrusion,
Wherein the vacuum suction line is connected to the suction pipe, the suction hole of the main body case, the suction channel of the syringe holder, the front inner space of the holder case, the cap suction hole of the cap, and the cap. delete delete delete 3. The method according to claim 1 or 2,
Wherein the main body assembly further comprises a vibration motor for generating vibration by receiving power from a battery. 3. The method according to claim 1 or 2,
The main body case of the main body assembly is provided with a display window indicating an operating state, an operation button, a speaker portion and a charging terminal,
Wherein the drug injection switch for interrupting the power supply of the electric motor is formed solely on a side surface or a rear end of the main body case, or a plurality of drug injection switches are formed on a side surface and a rear surface of the main body case.

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