WO2017002990A1 - Drug injection apparatus - Google Patents

Abstract

A drug injection apparatus is disclosed. A drug injection apparatus according to one embodiment of the present invention comprises: a gun-type grip housing which is manufactured as a gun type and held by a practitioner; a holder part for coupling an ampule which is provided with an in vivo injection needle for injecting an injection liquid in the ampule into a subject, connected to one side of the gun-type grip housing, and coupled to the ampule; a plunger which is disposed inside the gun-type grip housing and connected to the injection ampule and which pressurizes the injection liquid in the ampule to move toward the in vivo injection needle; and a manual injecting part for injecting liquid, connected to the plunger, which manually pressurizes the plunger to manually inject the injection liquid into a procedure site.

Description

Drug injection device

The present invention relates to a drug injection device, and more particularly, to a drug injection device that can improve the convenience of the procedure during manual injection of the injection liquid to enable the operator to grip the device more easily and comfortably.

Implants, which are originally meant to be a replacement when a tissue is lost, are a series of procedures in which dentists implant artificial teeth.

In dentistry, implants are implanted in the alveolar bone where the tooth is pulled out and implanted a fixture made of titanium, etc., which is not rejected to the human body to replace the lost root (root). The procedure to restore the function of.

These implants vary depending on the type of fixture, but a predetermined drill is used to drill the placement position, then the fixture is implanted into the alveolar bone and bone fused to the bone, and then the abutment is joined to the fixture. This is usually done by putting the final prosthesis on.

In the case of general prosthetics or dentures, the surrounding teeth and bones are damaged after time, but the implants do not damage the surrounding dental tissues, and they have the advantage that they can be used semi-permanently because they have the same function or shape as natural teeth and do not cause tooth decay.

Implant procedures also enhance the function of dentures, improve the aesthetic aspects of dental prosthetic restorations, as well as dissipate excessive stress on surrounding supportive bone tissue, as well as single missing restorations. It also helps to stabilize the teeth.

On the other hand, the implant procedure causes a lot of pain to the subject by performing a gum incision, drilling by the drill during the procedure. Therefore, local anesthesia for the site is essential in the implant procedure.

Such local anesthesia is usually performed by injecting anesthesia into the procedure by pressurizing the anesthetic with a syringe. At this time, if the injection rate of the anesthetic liquid is high, that is, the pressure of the anesthetic liquid is high, excessive pressure is generated at the injection portion of the anesthetic liquid, and thus the subject feels pain.

Therefore, infusion of anesthesia should be made as slow as possible. However, slowing the infusion rate of anesthesia increases the infusion time of anesthesia, which in turn increases the time the operator is holding the syringe.

Increasing the time the operator holds the syringe, it is difficult for the operator to maintain a constant injection rate, as well as shaking may occur. As a result, the patient has to open his or her mouth for a long time, and the operator feels pain due to the shaking of the operator.

Many attempts have been made to solve this problem, and an automatic anesthesia device as disclosed in Korean Patent No. 10-0784931 has been developed as a representative example.

By the automatic anesthesia device, it is disclosed that the injection rate of the anesthetic liquid is properly adjusted according to the change in the pressure formed at the site to be treated to minimize the pain felt by the patient.

However, the conventional drug injection device constituting the above structure has a disadvantage in that the structure of the drug injection device is complicated and heavy, which makes it difficult for the operator to hold it for a long time and additional pain may occur due to the shaking effect during the drug injection process. .

On the other hand, when anesthesia enters the blood vessel during local anesthesia, pain is caused, so after inserting the needle before injecting the anesthetic liquid, pull the syringe plunger back slightly to confirm that the needle did not penetrate the blood vessel. Depending on the patient's sensitivity or the degree of anesthesia, it is sometimes more convenient to inject the anesthetic solution by injecting an anesthetic fluid manually.

However, as described above, the automatic anesthesia device according to the prior art has a problem that the operator is difficult to handle for a long time because the structure is complicated and heavy, and can be manually switched as needed to inject the anesthetic liquid.

Thus, the applicant has been registered by proceeding a patent application for the last drug injection device.

The drug injection device registered by the present applicant is a combination of manual and automatic to increase the convenience and freely select the injection method according to the sensitivity of the patient to reduce the drug injection time to improve patient satisfaction, It is reported that the patient is receiving good evaluation.

However, this time, it has been proposed to improve the structure of the drug injection device to improve the convenience of the procedure when the manual injection of the drug (injection) by allowing the operator to grip the device more easily and comfortably.

Therefore, an object of the present invention is to provide a drug injection device that can improve the convenience of the procedure when the operator can gripping the device more easily and comfortably manual injection of the injection.

According to the present invention, the operator can grip the device more easily and comfortably to improve the convenience of the procedure when the injection of the injection manually.

1 is a perspective view of a drug injection device according to an embodiment of the present invention.

2 and 3 are views of FIG. 1 from different angles, respectively.

4 is an internal structural diagram of a drug injection device according to an embodiment of the present invention.

5 is a front view of FIG. 4.

6 is a view of a state in which the plunger housing and the ampoule housing are removed in FIG. 4.

FIG. 7 is a view of FIG. 6 from another angle.

8 and 9 are views according to the manual mode by the injection liquid injection unit.

FIG. 10 is an enlarged view of area A of FIG. 8.

11 and 12 are operation diagrams according to the automatic mode by the automatic injection liquid injection unit.

FIG. 13 is an enlarged view of region B of FIG. 11.

According to an aspect of the invention, the gun type (gun type) is a gun type gripping housing that the operator grips; An ampoule coupling holder portion having an injection needle for injecting an injection solution in an injection solution ampule to be injected into a patient and connected to one side of the gun type gripping housing and to which the injection solution ampoule is coupled; A plunger disposed in the gun type gripping housing and connected to the injection ampoule, for pressurizing the injection solution in the injection ampoule toward the infusion needle; And an injection solution manual injection unit connected to the plunger and manually injecting the injection solution into the procedure by manually pressing the plunger.

The injection liquid manual injection unit may be connected to one side of the plunger from the rear of the gun type gripping housing, and may include a plunger pressurizing handle for manually pressing the plunger.

The injection liquid manual injection unit may further include a pair of finger hooks provided symmetrically on both sides of the gun type gripping housing with the plunger pressure handle in between to form a position where a finger is supported when the plunger pressure handle is pressed. have.

The finger hook portion may be manufactured in an arc shape or provided to be foldable.

The gun type gripping housing may be further connected to the plunger, and may further include an automatic injection liquid injection unit for automatically injecting the injection liquid to the procedure by automatically pressing the plunger by the power.

The injection liquid injection unit, the motor for generating a power for pressing the plunger; A worm gear coupled to the rotating shaft of the motor; And a rack gear formed at one side of the plunger and gear-engaged with the worm gear.

It is provided on one side of the gun type gripping housing, and may further include a motor input button for selecting and inputting the rotational speed of the motor to adjust the injection amount of the injection liquid.

The injection liquid injection may further include an injection liquid injection selection unit for selecting to operate in one of the manual mode by the injection liquid manual injection unit or the automatic mode by the injection liquid automatic injection unit.

The injection solution injection selection unit may be rotatably coupled to an outer surface of the gun type gripping housing, and an injection solution injection selection knob configured to select one of the injection solution manual injection unit or the injection solution automatic injection unit; And a gear driving unit connected to the injection liquid injection selection knob and the injection liquid automatic injection unit, and configured to selectively engage or disengage the gear with the rack gear based on a rotation operation of the injection liquid injection selection knob. Can be.

The gear driving unit includes a motor support rotating body supporting the motor but rotatable with the motor and the worm gear; A hinge rotatably connecting one end of the motor supporting rotor with the gun type gripping housing; A protruding pin protruding from the motor support rotating body; And one side is supported by the protruding pin, and the other side is connected to the injection liquid injection selection knob, and may include a rotating member rotated together with the injection liquid injection selection knob.

The rotating member may be provided with a locking groove that is caught by the protruding pin.

The locking groove portion, the manual mode section for forming a position to be caught by the protruding pin in the manual mode; And an auto mode section unit connected to the manual mode section unit to form a position of the protruding pin in the auto mode.

It may further include a knob rotation restraining portion provided around the injection liquid injection selection knob, for restraining any rotation of the injection liquid injection selection knob.

It may be provided in the gun type gripping housing adjacent to the injection needle for the body, it may further include an illumination module for irradiating the surgical site.

The lighting module may be a light emitting diode (LED) module, and a guide groove may be formed at one side of the gun type gripping housing to accommodate the lighting module and guide light from the lighting module.

It is provided on one side of the gun type gripping housing, and may further include an illumination input button for inputting an on / off operation of the lighting module or an operation time of the lighting module.

The battery may further include a battery remaining amount display unit provided at one side of the gun type gripping housing to display the remaining amount of the battery.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, descriptions of functions or configurations already known will be omitted to clarify the gist of the present invention.

Prior to the description of the drawings, the injection solution to be described below may be any of various drugs injected into the body of an animal or human.

However, in the present embodiment, an anesthetic liquid for local anesthesia in a dental implant procedure will be exemplified.

1 is a perspective view of a drug injection device according to an embodiment of the present invention, Figures 2 and 3 are each a view showing Figure 1 from a different angle, Figure 4 is a drug injection device according to an embodiment of the present invention 5 is a front view of FIG. 4, FIG. 6 is a view of the plunger housing and the ampoule housing removed from FIG. 4, FIG. 7 is a view of FIG. 6 from a different angle, and FIG. 8 and FIG. 9 is an operation view according to the manual mode by the injection liquid manual injection unit, FIG. 10 is an enlarged view of region A of FIG. 8, FIGS. 11 and 12 are operation views according to the automatic mode by the injection liquid automatic injection unit, FIG. 13 is an enlarged view of region B of FIG. 11.

Referring to these drawings, the drug injection device according to the present embodiment is to enable the operator to grip the device more easily and comfortably to improve the convenience of the procedure during manual injection of the injection (drug), gun type The gripping housing 110, an ampoule coupling holder portion 120 coupled to one side of the gun type gripping housing 110, and an illumination module 130 provided to the gun type gripping housing 110 to irradiate the surgical site during the procedure. It may include.

First, the gun type gripping housing 110 is a part that forms the appearance of the drug injection device according to the present embodiment and is a part held by the operator during the procedure.

In the present embodiment, as shown in the drawings, the gun type gripping housing 110 forming the appearance of the device is manufactured in a gun type.

Therefore, because the operator is easy to grip, the procedure can be convenient and facilitated, which can effectively proceed with a reliable procedure.

The gun type gripping housing 110 includes an ampule coupling holder portion 120, a plunger 140, an injection liquid manual injection unit 150, an injection liquid injection unit 160, an injection liquid injection selection unit 170, Configurations such as the gear drive 180 and the knob rotation restriction 190 are mounted.

Therefore, the gun type gripping housing 110 can be disassembled and assembled into the first and second housings 110a and 110b.

In order to assemble the first and second housings 110a and 110b, a plurality of coupling bosses B are provided at various places on the inner surfaces of the first and second housings 110a and 110b. Accordingly, the first and second housings 110a and 110b may be assembled by screwing the coupling bosses B of the first and second housings 110a and 110b to each other and screwing thereto.

In order to disassemble the first and second housings 110a and 110b for maintenance, the screws that are fastened to the coupling bosses B may be loosened.

Next, the ampoule coupling holder portion 120 is coupled to one end region of the gun-type gripping housing 110 and forms a place where the injection ampule (ample, M) is accommodated.

The ampoule coupling holder portion 120 is connected to the ampoule accommodation housing 112 (see FIGS. 4 and 5) in which the injection solution ampoule M is accommodated, and the ampoule accommodation housing 112, and the injection solution in the injection solution ampoule M. Intra-body injection needle (needle) 121 to be injected into the subject.

The ampule accommodating housing 112 has a hollow structure to accommodate the injection ampoule M. One side of the ampoule accommodation housing 112 is formed with a viewport 112a for checking the injection liquid in the injection liquid ampoule M accommodated therein.

 Intra-body injection needle 121 may be applied as a replaceable type that can be easily replaced at the corresponding position. To this end, the intra-body injection needle 121 has a structure in which the needle bundle 121a at the end is coupled to one end of the ampoule receiving housing 112 by a screw method.

Next, as shown in Figure 3, the illumination module 130 is provided in the gun type gripping housing 110 to be adjacent to the body injection needle 121, and serves to irradiate the surgical site.

In this way, since the illumination module 130 is operated to perform a bright irradiation of the surgical site, the convenience of the procedure can be improved, thereby improving the reliability of the procedure.

In the present embodiment, the lighting module 130 is applied as an LED (Light Emitting Diode) module that can be used semi-permanently while also having low battery consumption and low battery consumption.

A guide groove 111 is formed at one side of the gun type gripping housing 110 to form a place where the lighting module 130 is accommodated, so that light from the lighting module 130 can be guided.

When the lighting module 130 is operated in the state accommodated in the guide groove 111 as in the present embodiment, the light from the lighting module 130 is guided by the wall surface of the guide groove 111, that is, collecting the surgical site Because it can be lighted, it may be more advantageous to brighten the treatment area.

An illumination input button 112 is provided at one side of the gun type gripping housing 110 for the operation of the lighting module 130. The lighting input button 112 inputs an on / off operation of the lighting module 130 or an operation time of the lighting module 130.

For example, on, three seconds, and off may be repeated depending on the number of times of pressing the illumination input button 112. Of course, these matters are merely examples, and the scope of the present invention should not be limited thereto.

Meanwhile, as described above, the gun type gripping housing 110 which can be disassembled and assembled includes a plunger 140, an injection liquid manual injection unit 150, an injection liquid injection unit 160, an injection liquid injection selection unit 170, and a gear. Components such as the driving unit 180 and the knob rotation restricting unit 190 are mounted by position to operate as an organic mechanism. Explain them one by one.

Plunger 140 is a rod-shaped member disposed within gun type gripping housing 110. The plunger 140 is disposed within the plunger casing 141 (see FIGS. 4 and 5) within the gun type gripping housing 110.

At this time, a cutout portion 142 is formed at one side of the plunger casing 141. The rack gear 163 formed at one side of the plunger 140 is exposed through the cutout portion 142 to expose the worm gear 162 and the gear. Is interlocked.

The end of the plunger 140 is connected to the injection ampoule (M). Accordingly, when the plunger 140 is pressurized as shown in FIG. 8 or FIG. 9 or as shown in FIG. 11, the plunger 140 presses the injection liquid in the injection ampoule M toward the body injection needle 121, thereby injecting the injection liquid. May be injected into the site.

As such, when the plunger 140 is pressurized, the injection liquid can be injected into the surgical site. In this case, the plunger 140 can be divided into a manual mode and an automatic mode according to the method of pressing the plunger 140.

In the manual mode (see FIGS. 11 and 12), the injection liquid can be injected into the procedure while pressing the plunger 140 with the operator's finger force, and the automatic mode (see FIGS. 8 and 9) will be described later. By injection of the plunger 140 automatically by the power of the power is to be injected to the injection site.

The operator can select and use the manual mode and the automatic mode as needed. In particular, in the automatic mode, the injection liquid can be injected into the treatment site while pressing the plunger 140 automatically by the power of the motor 161. The operator does not feel pain.

If the anesthesia state of the subject progresses to the extent that the pain is not greatly felt, pressing the motor input button 113 may quickly adjust the automatic injection speed or switch to the manual mode to rapidly inject the remaining injection solution.

First, the injection solution manual injection unit 150, the injection solution manual injection unit 150 is connected to the plunger 140 as described above, by manually pressing the plunger 140 so that the injection solution is manually injected to the treatment site It plays a role.

The injection liquid manual injection unit 150 is connected to one side of the plunger 140 at the rear of the gun type gripping housing 110, the plunger pressure handle 151 for manually pressing the plunger 140, and the plunger pressure handle ( It may include a pair of finger hooks 152 provided symmetrically on both sides of the gun type gripping housing 110 with the 151 therebetween to form a position where the finger is supported when the plunger pressure handle 151 is pressed. .

In this embodiment, the plunger pressurizing handle 151 has a ring shape to prevent the finger from being separated.

In addition, the pair of finger hooks 152 has an arc shape so that the fingers can be well placed to support the force when pressing the plunger pressure handle 151. The thumb is inserted into the plunger pressurizing handle 151 in a state where the index finger and the middle finger are disposed on the pair of finger hooks 152, and the injection liquid can be manually injected while pressing as shown in FIGS. 11 and 2.

Of course, unlike the drawing, a pair of finger hooks 152 may be applied to the folding. In this case, in the automatic mode, the pair of finger hooks 152 may be folded.

Injection fluid injection unit 160 is selectively connected to the plunger 140 in the gun-type gripping housing 110, and automatically pressurizes the plunger 140 by the power to automatically inject the injection solution to the treatment site Do it.

As described above, the manual mode by the injection liquid manual injection unit 150 and the automatic mode by the injection liquid automatic injection unit 160 are selected and determined by the operator, so the injection liquid automatic injection unit 160 is the gun type gripping housing 110. It may optionally be connected to the plunger 140 within.

The injection solution automatic injection unit 160 is a motor 161 for generating power to pressurize the plunger 140, the worm gear 162 coupled to the rotating shaft of the motor 161, and one side of the plunger 140 It is formed, and may include a rack gear 163 geared to the worm gear 162.

As described above, the motor 161 generates power for automatically pressing the plunger 140 in the automatic mode operation as shown in FIGS. 8 and 9. It may be operated by a battery in the gun type gripping housing 110 not shown.

One side of the gun type gripping housing 110 is provided with a motor input button 113 for selecting and inputting the rotational speed of the motor 161. Each time the motor input button 113 is pressed, the speed of the motor 161 may be increased. If the speed of the motor 161 increases, the injection amount per unit time of the injection liquid may increase.

In this embodiment, the motor input button 113 is in the form of a single button, but the motor input button 113 is provided in the form of a sensor on one side of the gun type gripping housing 110 to provide a gun type gripping housing 110. A structure may be applied so that the injection amount is automatically adjusted by the gripping pressure.

The battery remaining amount display unit 114 may be provided around the motor input button 113. The battery remaining amount display unit 114 displays the remaining amount of the battery applied to the motor 161. The display method at this time may be an alarm system.

The worm gear 162 constituting the automatic injection liquid injection unit 160 is connected to the motor 161, the rack gear 163 is formed on one side of the plunger 140. Accordingly, when the worm gear 162 is rotated by the motor 161, the rack gear 163 meshed with the worm gear 162 may linearly move, and thus the plunger 140 may be moved to pressurize the injection liquid. have.

At this time, the gear engagement coupling between the worm gear 162 and the rack gear 163 is made through a cutout 142 formed on one side of the plunger casing 141. That is, the worm gear 162 may be meshed with the rack gear 163 exposed to the cutout 142 area.

Meanwhile, the injection solution injection selector 170 is provided in the drug injection device according to the present embodiment so that the automatic mode as shown in FIGS. 8 and 9 or the manual mode as shown in FIGS. 11 and 12 may be selected.

In other words, the injection liquid injection selection unit 170 serves to select the injection of the injection liquid to be operated in one of a manual mode by the injection liquid manual injection unit 150 or an automatic mode by the injection liquid automatic injection unit 160. . The injection liquid injection selector 170 may include an injection liquid injection selection knob 171 and a gear driver 180.

The injection liquid injection selection knob 171 is rotatably coupled to the outer surface of the gun type gripping housing 110, and serves to select one of the injection liquid manual injection unit 150 or the injection liquid automatic injection unit 160.

That is, by rotating the injection liquid injection selection knob 171 coupled to the outer surface of the gun type gripping housing 110 as shown in Figure 2, the manual mode by the injection liquid manual injection unit 150 or the automatic mode by the injection liquid automatic injection unit 160 Can be selected. 2 corresponds to the automatic mode.

The gear drive unit 180 is connected to the injection liquid injection selection knob 171 and the injection liquid automatic injection unit 160, and the worm gear 162 is connected to the rack gear 163 based on the rotation of the injection liquid injection selection knob 171. Selectively serves to engage or disengage gears.

For example, when the injection liquid injection selection knob 171 is rotated in the horizontal direction as shown in FIGS. 8 and 9, the worm gear 162 is meshed with the rack gear 163 to proceed with the automatic mode by the injection liquid automatic injection unit 160. .

11 and 12, when the injection liquid injection selection knob 171 is rotated at an angle, the gear mode is released from the rack gear 163 because the worm gear 162 is released, and thus the manual mode by the injection liquid injection portion 150 may proceed. have.

A knob rotation restriction 190 is provided around the injection liquid injection selection knob 171. The knob rotation restriction 190 serves to restrain any rotation of the injection liquid injection selection knob 171. That is, it plays a role of preventing the manual mode and the automatic mode from being arbitrarily selected without the operator's intention.

Meanwhile, the gear driving unit 180 supports the motor 161 but rotates together with the motor 161 and the worm gear 162, and the one end of the motor supporting rotating body 181 and the motor supporting rotating body 181. Hinges 182 for rotatably connecting the gun type gripping housing 110, a protruding pin 183 protruding from the motor support rotating body 181, and one side is supported by the protruding pin 183, The other side may include a rotating member 184 connected to the injection liquid injection selection knob 171 and rotated together with the injection liquid injection selection knob 171.

At this time, the rotating member 184 is formed with a locking groove 185 that is caught by the protruding pin 183, the locking groove 185 is to form a position to be caught by the protrusion pin 183 in the manual mode as enlarged in FIG. The manual mode section unit 185a and the manual mode section unit 185a may be connected to each other, and may include an auto mode section unit 185b forming a position that is applied to the protruding pin 183 in the automatic mode.

Accordingly, when the injection liquid injection selection knob 171 is rotated in the state as shown in FIG. 10, as the rotating member 184 is rotated, the protrusion pin 183 is forcibly pulled and the protrusion pin 183 is disposed in the manual mode section 185a. This allows the motor supporting rotor 181 to rotate by the hinge 182 to rotate the motor 161 and the worm gear 162 together. Then, as illustrated in FIG. 13, the worm gear 162 may be separated from the rack gear 163, thereby allowing the manual mode by the injection liquid manual injection unit 150 to proceed.

Hereinafter, the operation of the drug injection device according to the present embodiment.

In order to use the drug injection device according to the present embodiment in the manual mode, the injection solution injection selection knob 171 is rotated at an angle as shown in FIGS. 11 to 13.

Rotating the injection liquid injection selection knob 171 to rotate the rotating member 184 and forcibly pull the protruding pin 183 so that the protruding pin 183 can be disposed in the manual mode section 185a, the operation of the Due to this, the motor support rotating body 181 is rotated obliquely by the hinge 182.

When the motor support rotating body 181 is rotated at an angle by the hinge 182, the motor 161 and the worm gear 162, which are coupled to the motor supporting rotating body 181 together, are also supported by the motor supporting rotating body 181. Together with the worm gear 162 may be detached from the rack gear 163.

When the worm gear 162 is separated from the rack gear 163 as described above, the thumb and the plunger pressurizing handle 151 in the state in which the index finger and the middle finger are disposed on the pair of finger hooks 152 constituting the injection liquid manual injection part 150. The injection liquid can be injected manually while being put into the container and pressurizing the plunger pressurizing handle 151. In this case, the injection speed of the injection solution can be arbitrarily adjusted by the operator.

Meanwhile, in order to use the drug injection device according to the present embodiment in the automatic mode, the injection solution injection selection knob 171 is rotated in the horizontal direction as shown in FIGS. 8 to 10.

Then, the worm gear 162 may be meshed with the rack gear 163 by the reverse operation of the gear driving unit 180 described above.

As such, when the worm gear 162 is gear engaged with the rack gear 163 and the motor 161 is operated to rotate the worm gear 162 by the motor 161, the gear gear meshes with the worm gear 162. 163 may linearly move, and thus the plunger 140 may be moved to pressurize the injection liquid. Therefore, the injection liquid can be injected automatically.

In the automatic mode as described above, the subject does not feel pain because the injection liquid can be injected into the procedure site while pressing the plunger 140 automatically by the power of the motor 161.

If the anesthesia state of the subject progresses to the extent that the pain is not greatly felt, pressing the motor input button 113 may quickly adjust the automatic injection speed or switch to the manual mode to rapidly inject the remaining injection solution.

According to this embodiment having such a structure and action, the operator can grip the device more easily and comfortably to improve the convenience of the procedure during manual injection of the injection (drug).

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

The present invention can be used in the medical field, including dentistry.

Claims (17)

Gun type gripping housing manufactured by a gun type to be gripped by an operator; An ampoule coupling holder portion having an injection needle for injecting an injection solution in an injection solution ampule to be injected into a patient and connected to one side of the gun type gripping housing and to which the injection solution ampoule is coupled; A plunger disposed in the gun type gripping housing and connected to the injection ampoule, for pressurizing the injection solution in the injection ampoule toward the infusion needle; And And an injection solution manual injection unit connected to the plunger and manually pressing the plunger to manually inject the injection solution into the procedure site. The method of claim 1, The injection liquid manual injection unit, And a plunger press handle which is connected to one side of the plunger at the rear of the gun type gripping housing and manually presses the plunger. The method of claim 2, The injection liquid manual injection unit, Drug injection device further comprises a pair of finger hooks provided symmetrically on both sides of the gun type gripping housing with the plunger pressing handle therebetween to form a place where the finger is supported when the plunger pressing handle is pressed. . The method of claim 3, The finger hook portion is manufactured in an arc shape (arc) or the drug injection device, characterized in that provided in the folding. The method of claim 1, Drug injection, characterized in that it is connected to the plunger selectively in the gun-type gripping housing, the injection liquid automatic injection portion to automatically press the plunger by the power to automatically inject the injection solution to the procedure site Device. The method of claim 5, The injection liquid automatic injection unit, A motor for generating power to pressurize the plunger; A worm gear coupled to the rotating shaft of the motor; And It is formed on one side of the plunger, drug injection device comprising a rack gear geared to the worm gear. The method of claim 6, The drug injection device is provided on one side of the gun-type gripping housing, further comprising a motor input button for selecting and inputting the rotational speed of the motor to adjust the injection amount of the injection liquid. The method of claim 5, And an injection liquid injection selection unit for selecting the injection of the injection liquid to be operated in one of a manual mode by the injection liquid manual injection unit or an automatic mode by the injection liquid automatic injection unit. The method of claim 8, The injection solution injection selection unit, An injection liquid injection selection knob rotatably coupled to an outer surface of the gun type gripping housing and configured to select one of the injection liquid manual injection unit or the injection liquid automatic injection unit; And And a gear driving unit connected to the injection liquid injection selection knob and the injection liquid automatic injection unit and configured to selectively engage or disengage the gear with the rack gear based on a rotational operation of the injection liquid injection selection knob. Drug injection device characterized in. The method of claim 9, The gear drive unit, A motor support rotating body supporting the motor but rotatable with the motor and the worm gear; A hinge rotatably connecting one end of the motor supporting rotor with the gun type gripping housing; A protruding pin protruding from the motor support rotating body; And One side is supported by the protruding pin, the other side is connected to the injection injection selection knob drug injection device, characterized in that it comprises a rotating member rotates with the injection injection selection knob. The method of claim 10, Drug injection device, characterized in that the engaging member is formed on the rotating member is caught by the protruding pin. The method of claim 11, The locking groove portion, A manual mode section forming a position of the protrusion pin in the manual mode; And The drug injection device is connected to the manual mode section portion, characterized in that it comprises an automatic mode section to form a position to be caught by the protruding pin in the automatic mode. The method of claim 9, And a knob rotation restricting portion provided around the injection liquid injection selection knob to restrain any rotation of the injection liquid injection selection knob. The method of claim 1, The drug injection device, characterized in that provided in the gun type gripping housing adjacent to the injection needle for the body, further comprising an illumination module for irradiating the surgical site. The method of claim 14, The lighting module is a light emitting diode (LED) module, One side of the gun type gripping housing is a drug injection device, characterized in that the guide module for receiving the light module is guided to the light from the light module is formed. The method of claim 14, The drug injection device is provided on one side of the gun-type gripping housing, further comprising an illumination input button for inputting an on / off operation of the illumination module or an operation time of the illumination module. The method of claim 1, The drug injection device is provided on one side of the gun-type gripping housing, further comprising a battery remaining amount display unit for displaying the remaining amount of the battery.

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