KR102003335B1 - Automatic Injection Device - Google Patents

Abstract

The present invention relates to an automatic scanning device, and more particularly, to an automatic scanning device including a body provided with a handle, a plunger fixing part provided on the body for fixing the syringe plunger, a cylinder mounting part for movably mounting the syringe cylinder on the body, And a cylinder moving unit for moving the syringe cylinder to the plunger fixing unit by the cylinder moving unit when the chemical liquid is injected into the muscle layer is moved toward the plunger fixing unit so that the syringe cylinder is retracted relative to the skin By administering the drug solution to the muscle layer, there is an effect that the drug solution can be administered over a wider range to the muscle layer formed at a certain depth.

Description

[0001] Automatic Injection Device [0002]

The present invention relates to an automatic injection device for moving a cylinder equipped with a needle for changing the depth of the injection needle and injecting it evenly into the muscle layer when the injection needle is injected into the muscle layer.

In general, a syringe is a device for injecting a drug solution into the body of a plant or animal. The syringe includes a cylinder in which an injection needle is coupled to inject the drug solution into an arbitrary tissue through a sharp tip, And a plunger provided therein.

Such a general syringe injects the drug into the cylinder while pushing the needle into the vial while retracting the plunger. The injection needle is pushed into the skin at a certain depth and then the plunger is pushed to inject the drug into an arbitrary tissue. In other words, the injection is performed by using a syringe. By injecting the drug solution subcutaneously, muscle, vein, and artery, it is possible to accurately and quickly obtain the effect of the drug solution. In the case where the drug can not be administered orally, Or when the medicine stimulates the mucous membrane of the digestive tract, or the like.

In particular, intramuscular injection is a method commonly used in the case of hoping for a quicker effect than hypodermic injection or in the case where intravenous injection is not possible, and it is generally used in a variety of injections, and injection site should be selected where muscles are well developed. In addition, intramuscular injection of large blood vessels, bones and nerves are adjacent to the injection site can pay attention to prevent damage and complications. At the time of muscle injection, the depth of the injection can be adjusted while placing the injection. It is usually injected at a depth of 2.5 to 3.8 cm to inject the injection in multiple layers in the muscle layer. However, there are individual differences in the depth to the muscle layer, There was a problem.

Korean Patent Registration No. 10-0745554 (2007.07.27.)

It is therefore an object of the present invention to provide an automatic injection device in which a needle cylinder is retracted to retract a cylinder in order to administer a drug to the muscle layer in multiple stages.

According to an aspect of the present invention, there is provided a plunger assembly including a body, a plunger fixing part provided on the body and fixing the syringe plunger, a cylinder mounting part for movably mounting the syringe cylinder on the body, And the cylinder mounting unit mounted with the syringe cylinder by the cylinder moving unit when the chemical liquid is injected into the muscle layer can be configured to be moved toward the plunger fixing unit.

According to another aspect of the present invention, there is provided a syringe comprising: a syringe cylinder including a syringe cylinder accommodating a medicament liquid; and a syringe plunger provided to advance and retreat within the syringe cylinder, a body, A cylinder mounting section for movably mounting the syringe cylinder to the body; and a cylinder moving unit for moving the cylinder mounting section toward the plunger holding section, wherein when the cylinder is moved by the cylinder moving unit during injection of the chemical solution into the muscle layer, The mounting portion can be configured to be moved toward the plunger fixing portion.

The body may further include a support member protruding from both sides of the body and extending to the front end of the cylinder mounting portion on which the syringe cylinder is mounted so as to support the injected skin so that the automatic injection device does not flow during the chemical solution injection .

The support member is formed as a pair and is spaced from both sides of the cylinder mounting portion and is formed to be larger than the cylinder mounting portion in a state where the cylinder mounting portion is maximally moved toward the front side of the body. It can be formed smaller than a needle.

In addition, the support member may further include a tightly coupled portion for bending the front end of the support member contacting the skin, so that the front end of the support member is completely in contact with the skin.

In addition, the plunger fixing part may be constituted by a holding member which is hinged to the body and which grips and grips the upper portion of the pressing projection of the syringe plunger.

The gripping member is hinged to the upper end of the body in a "T" shape, and a gripping portion having a first gripping groove for wrapping the upper portion of the pressing projection of the syringe plunger may protrude downward .

The first holding groove may be formed in the first holding groove such that the upper edge of the pressing projection of the syringe plunger is fitted so that the pressing projection is not released in the moving direction of the cylinder mounting portion.

The gripping member may include a gripping body hinged to an upper end of the body and having a space formed therein, and a gripping member provided to move in a direction orthogonal to the moving direction of the cylinder mounting portion at a lower portion of the gripping body, The first gripping protrusion and the first gripping protrusion on which the second gripping groove is formed and is moved in the same direction as the moving direction of the first gripping protrusion, And a second grip protrusion formed on the second grip protrusion.

The cylinder attaching portion may be formed of a pair of rails provided so as to move through the body in the longitudinal direction of the syringe and spaced apart from each other in the longitudinal direction of the syringe.

In addition, the pair of rails may be formed to have an L-shaped cross section, and the front end and the rear end may be connected to each other to be integrally formed, and may be configured to move together when moving through the body.

Further, the cylinder mounting portion can be formed by positioning the syringe cylinder between the pair of rails, placing the handle projection of the syringe cylinder between the pair of rails, and moving the syringe cylinder so that the handle projection of the syringe cylinder does not flow on the pair of rails And a fixing member for fixing between the pair of rails.

In addition, the fixing member may be formed with a semicircular pressing recessed portion for pressing and supporting the upper portion of the syringe cylinder in the lower portion thereof.

Further, the fixing member can be fixed by being fitted in the fitting groove formed in the vertical portion of the pair of rails.

The fixing member includes a fixed body formed with fitting protrusions on both side portions so as to fit into fitting grooves formed in the vertical portions of the pair of rails and having a space formed therein, And a pair of pressing members installed to move in a direction orthogonal to the syringe cylinder and having an arc-shaped pressing groove portion to cover one side of the upper portion of the syringe cylinder.

The fixing member may further comprise an elastic member that elastically supports the pair of pressing members with respect to both sides of the fixed body.

The cylinder moving unit includes a first gear portion formed on the bottom surface of the cylinder mounting portion, an operation lever hinged to the body so as to be pivoted in the longitudinal direction of the syringe cylinder in front of the body handle, A second gear portion formed on an upper surface of the pulling member, and an operation lever, both ends of which are elastically supported by the operation lever and the handle, respectively, so that the operation lever And a return spring for returning to the win position.

The first gear portion and the second gear portion are each formed of a plurality of gear teeth formed in a sawtooth shape. When the handle is rearward and the operation lever is forward of the body, the vertical surface of the gear teeth of the first gear portion is a body And the inclined surface may be formed to face the rear of the body. The vertical surface of the gear teeth of the second gear portion may face the rear of the body, and the inclined surface may be directed toward the front of the body.

In addition, the operating lever may form a hinge portion at a portion where the upper end portion of the operation lever is moved forward of the body and the lower end portion of the operation lever is moved downward from the upper end portion so as to move to the rear of the body.

The pulling member may be arranged to be parallel to the cylinder mounting portion on the lower side of the cylinder mounting portion and connected to the upper end of the operation lever so as to be moved in the forward and backward directions of the body together with the upper end of the operation lever.

The cylinder moving unit includes a motor provided on the body, a pinion gear fixed to the drive shaft of the motor, a rack gear formed on the bottom surface of the cylinder mounting portion and engaged with the pinion gear, An operation switch for driving the motor, and a battery for supplying electricity to the motor.

The cylinder moving unit may further include a changeover switch provided in the body or the handle and connected to the motor to change the direction of rotation of the drive shaft of the motor.

The cylinder moving unit includes a solenoid which is connected to the cylinder mounting portion and which moves the cylinder mounting portion while linearly moving the drive shaft by electric power supply, a battery for supplying power to the solenoid, and an operation switch for operating the solenoid .

Further, the syringe cylinder may further include an injection needle for piercing the skin at a predetermined depth to inject the drug solution into the muscle layer.

In addition, the injection needle may be integrally fixed to the end of the syringe cylinder, or may be detachably provided, and may be provided with an injection port for injecting the chemical liquid into the end portion that pierces the skin.

According to the present invention, the drug solution is administered to the muscle layer while the cylinder accommodating the drug solution is retracted to the skin, whereby the drug solution can be administered over a wider range to the muscle layer formed at a certain depth.

In addition, when the drug solution is administered, the automatic injection device is supported on the skin, whereby the drug solution can be administered at the correct position.

1 is a perspective view showing a syringe used in an automatic scanning apparatus according to an embodiment of the present invention;
2 is a perspective view showing an automatic scanning apparatus according to a first embodiment of the present invention;
3 is a perspective view showing a plunger fixing portion in the automatic scanning device of FIG. 2;
Fig. 4 is a perspective view showing another form of the plunger fixing portion of Fig. 3; Fig.
Fig. 5 is a perspective view showing a part of a cylinder mounting portion in the automatic scanning device of Fig. 2; Fig.
6 is a perspective view showing a structure for fixing the handle projection of the cylinder of the syringe to the cylinder mounting portion in the automatic scanning device of Fig.
Fig. 7 is a perspective view showing another embodiment of a fixing member for fixing the handle projection of the cylinder of Fig. 6; Fig.
8 is a side sectional view schematically showing the cylinder moving unit in the automatic scanning apparatus according to the first embodiment of the present invention.
9 is a perspective view showing an automatic scanning apparatus according to a second embodiment of the present invention;
10 is a perspective view showing an automatic scanning apparatus to which another form of the cylinder moving unit is applied in FIG.
11 is a perspective view showing another embodiment of the automatic scanning apparatus of FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

First Embodiment

1 is a perspective view showing a syringe used in an automatic scanning apparatus according to an embodiment of the present invention. FIG. 2 is a perspective view showing an automatic scanning apparatus according to a first embodiment of the present invention, FIG. 3 is a principal perspective view showing a plunger fixing unit in the automatic scanning apparatus of FIG. 2, Fig.

The syringe 50 includes a syringe cylinder 52 in which a syringe 51 is coupled to receive a chemical liquid to inject a chemical liquid and a syringe plunger 53 provided to be movable forward and backward in the syringe cylinder 52, .

The syringe cylinder 52 is formed with a handle projection 52a protruding from the outer periphery of the end of the syringe cylinder 52 so as to hold the syringe cylinder 52 with a finger for the user to press the syringe plunger 53. [

The syringe plunger 53 is fitted to the opened position of the syringe cylinder 52 at the opposite side of the injection needle 51 and the pressing projection 53a for pressing the syringe plunger 53 by the user at the time of injecting the chemical liquid is opened And is protruded from the outer periphery of the end portion.

2 to 4, an automatic scanning apparatus 100 according to a first embodiment of the present invention includes a body 110 having a handle 111, a body 110 provided on the body 110, and a syringe plunger 53 A cylinder mounting portion 130 for movably mounting the syringe cylinder 52 in the body 110 and a plunger fixing portion 120 for mounting the cylinder mounting portion 130. The plunger fixing portion 120, And a cylinder movement unit (140) for moving the piston

The body 110 has a handle 111 formed on the lower end of the body 110 in a downward direction to hold the automatic scanning device 100 by a user. The body 110 has a space formed therein so that the cylinder movement unit 140 and the operation lever 142 can be installed.

The body 110 is formed from both sides of the body 110 to the front end of the cylinder mounting portion 130 and supports the body 110 in the vicinity of the skin punctured by the injection needle 51b so as not to shake the fascia automatic- And a support member 112 for supporting the substrate.

The support members 112 are formed as a pair and protrude from both sides of the body 110 or from both sides of the front face of the body 110 in the direction in which the cylinder mounting portion 130 is moved. Respectively. The supporting member 112 is formed to be larger than the cylinder mounting portion 130 and the length of the injection needle 51 projecting from the front end of the cylinder mounting portion 130 in a state where the syringe cylinder 52 is mounted on the cylinder mounting portion 130 It is preferable that it is formed smaller than the above.

The support member 112 has a tight contact portion 112a which is formed by bending a front end close to the skin. The adhered portion 112a is formed into a concave curved surface corresponding to the skin convex on the skin.

The tight contact part 112a may be formed as a separate member and then hinged to the front end of the straight support member 112, but may be rotated only at a predetermined angle. That is, after the tight contact portion 112a is formed as a separate member, the end portion of the support member 112 is hinged to be supported by the curved surface of the patient's skin to be performed.

The plunger fixing portion 120 is for fixing the pressing projection 53a of the plunger 53 formed by the user to press with the finger and is formed in a groove shape at one side of the body 110 (opposite side of the handle).

The plunger fixing part 120 is hinged to the upper end of the body 110 to cover and secure the upper portion of the pressing projection 53a of the syringe plunger 53 to press the pressing projection 53a of the syringe plunger 53 from the plunger fixing part 120 And a gripping member 121 for gripping the pressing projection 53a so as not to come off.

The gripping member 121 is formed in a substantially T shape and has an upper end hinged to the body 110 and has a first gripping groove for wrapping the upper end of the pressing projection 53a of the syringe plunger 53 121b are formed. The first holding groove 121b is formed in a semicircular shape so as to surround the upper portion of the pressing projection 53a. The first retention groove 121b is provided with a first support groove 121c (not shown) in which the upper edge of the press protrusion 53a is fitted so that the press protrusion 53a is not released in the forward and backward direction of the body 110 Is formed.

4 shows another embodiment of the gripping member. 4, the gripping member 122 includes a first gripping groove 121a of the gripping portion 121a surrounding the pressing protrusion 53a for pressing and temporarily fixing the pressing protrusion 53a of the syringe plunger 53 of different sizes, And adjusts the size of the light guide plate 121b.

The gripping member 122 is divided into two halves so as to adjust the distance between the first gripping grooves 121b of the gripping portion 121a surrounding the pressing projection 53a of the syringe plunger 53 And are formed as separate members so as to be moved in a direction approaching or separating from each other.

The gripping member 122 includes a box-shaped gripping body 122a hinged to an upper end of the body 110 and having a space formed therein, and a first gripping protrusion (not shown) movably provided at a lower portion of the gripping body 122a And a second grasping projection 122c provided movably in the lower portion of the grasping main body 122a and in parallel with the first grasping projection 122b.

The first and second gripping protrusions 122b and 122c are movably coupled to the inner space of the gripping body 122a through the lower side of the gripping body 122a so as to be movable in the lengthwise direction of the syringe 50 In the direction orthogonal to the longitudinal direction (i.e.

The first and second gripping protrusions 122b and 122c are formed such that the arc-shaped second gripping grooves 122d are formed from one side of the first gripping protrusion 122b to the lower side thereof, and the second gripping grooves 122d are arranged to face each other. And is coupled to the lower portion of the main body 122a. The second holding groove 122d is provided with a second supporting groove 122e for preventing the pressing projection 53a of the pressing projection 53a of the syringe plunger 53 from engaging with the front side of the body 110, .

5 to 7, the cylinder mounting part 130 is for mounting the syringe cylinder 52. When the handle 110 is located at the back of the body 110, And is reciprocally moved forward and backward of the body 110. As shown in FIG.

The cylinder mounting portion 130 is formed of a pair of rails spaced apart from each other by a predetermined distance in the front and rear direction of the body 110 so as to be passed through the body 110 in the forward and backward directions (the longitudinal direction of the syringe). When the pair of rails are integrally arranged, the horizontal portions are disposed to face each other, and the syringe cylinder 52 is seated between the pair of rails. The pair of rails are configured so that the front end and the rear end of the pair of rails are formed integrally with each other to be moved together when moving in the front and rear direction in the body 110. [

The cylinder mounting portion 130 is formed at a front end portion of the pair of rails integrally connected with the seating groove portion 130a in which the front end of the syringe cylinder 52 to which the injection needle 51b is fixed is seated and supported.

The cylinder mounting portion 130 seats the front end portion of the syringe cylinder 52 to which the injection needle 51b is coupled in the seating groove portion 130a when the syringe cylinder 52 is placed between the pair of rails, And a fixing member 131 for fixing the syringe cylinder 52 so as not to flow in the pair of rails after the handle protrusion 52a formed at the rear end of the syringe cylinder 52 is seated between the pair of rails.

6, the fixing member 131 is fixed to the rail, which is the cylinder mounting portion 130, while being pressed against the handle protrusion of the syringe cylinder 52 while pressing the upper portion of the syringe cylinder 52, So that the syringe cylinder 52 can be moved together while the cylinder mounting portion 130 moves while the chemical liquid is injected.

The fixing member 131 is formed in a substantially U shape and a semicircular pressing groove 131a for pressing and supporting the upper portion of the syringe cylinder 52 is formed at a lower portion. The pressing groove 131a of the fixing member 131 is formed to have the same radius of curvature as that of the upper curved surface of the syringe cylinder 52 so as to be in close contact with the upper curved surface of the used syringe cylinder 52. [ The fixing member 131 is configured such that the fitting protrusions 131b formed on both sides thereof are fitted and fixed in the fitting groove 130b formed in the vertical portion of the rail which is the cylinder mounting portion 130. [

7 shows another embodiment of the fixing member. Referring to FIG. 7, when a syringe having a different size is to be used, the fixing member 131 according to another embodiment may be configured such that the syringe cylinder 52 is fixed to the cylinder mounting part 130 so that the syringe So that it is possible to adjust the distance between the pressure grooves 131a so as to press the upper portions of the syringe cylinders 52 having different diameters.

The fixing member 131 has a fitting protrusion 131-1a formed on both sides so as to be in contact with both vertical portions of the pair of rails which are the cylinder mounting portion 130 so as to be fitted into the fitting groove 130b, Shaped pressing groove portion 131-2a so as to surround the upper portion of the syringe cylinder 52 while being reciprocally moved toward the vertical portion side of the rail in the inner space portion of the fixed body 131-1, And a pair of pressing members 131-2 formed on one side.

The fixing member 131 is configured to further pressurize the syringe cylinder 52 so that the syringe cylinder 52 is not released when the cylinder 52 is moved to the back of the body 110 together with the cylinder mounting portion 130 And further includes an elastic member 131-3 for elastically supporting a pair of pressing members 131-2 against both inner side surfaces of the fixed body 131-1. The elastic member 131-3 is configured to exert an elastic force to push the pressing member 131-2 toward the cylinder 52. [

8, the cylinder moving unit 140 moves the cylinder mounting unit 130, on which the syringe cylinder 52 is mounted, to the back of the body 110 for injecting the chemical liquid. The cylinder moving unit 140 moves the cylinder mounting unit 130, An operation lever 142 hinged to the body 110 so as to be pivoted in the longitudinal direction of the syringe cylinder 52 in front of the body handle and a second gear 141 formed on the bottom of the operation lever 142, A pulling member 143 which is connected to the upper end of the body 110 and pulls the cylinder mounting portion 130 to the rear of the body 110 while being moved in the forward and backward directions of the body 110, A second gear portion 144 formed on the upper surface of the operation lever 142 and a hinge portion of the operation lever 142. Both ends of the operation lever 142 are elastically supported by the operation lever 142 and the handle 111, And a return spring 145 for returning.

The first gear portion 141 is formed of a plurality of serrated gear teeth on the bottom surface of the cylinder mounting portion 130. The vertical surface of the gear teeth is directed toward the front side of the body 110 and the inclined surface is located on the rear side of the body 110 Respectively.

The operation lever 142 is hinged to the inside of the body 110 through the body 110 in front of the handle 111 of the body 110. A lower portion of the operation lever 142 at a predetermined distance from the upper end of the operation lever 142 is a hinge, . That is, when the user grasps the handle 111 of the body 110 with his / her hand and pulls the operation lever 142 with his / her finger, when the user rotates the hinge about the hinge, As shown in FIG.

When the hinge is fixed to the body 110, the operation lever 142 is hinged and fixed in an inclined state such that the upper end of the operation lever 142 is closer to the handle 111 of the body 110 than the lower end of the operation lever 142 about the hinge.

The pulling member 143 is disposed in parallel with the cylinder mounting portion 130 from the lower side of the cylinder mounting portion 130 and is configured to be close to the bottom surface of the cylinder mounting portion 130 and is connected to the upper end of the operation lever 142, Back direction of the body 110 together with the upper end of the pulling operation lever 142 of the body 142.

The second gear portion 144 is formed by a plurality of serrated gear teeth on the upper surface of the pulling member 143 and corresponds to the first gear portion 141. The vertical surface of the gear teeth is directed to the rear of the body 110, The inclined surface is formed so as to face the front of the body 110.

The return spring 145 is engaged with the hinge portion of the operation lever 142 and both ends are supported by the operation lever 142 and the handle 111, respectively. Accordingly, the return spring 145 is configured such that when the user releases the operation lever 142, the operation lever 142 is pushed back to its original position after the elasticity of the return spring 145 is generated as the both ends of the operation lever 142 are pulled toward each other do.

When the pulling member 143 moved to the front of the body together with the upper end of the operating lever 142 is released from the pulling of the operating lever 142 to move backward, the cylinder moving unit 140 moves the pulling member 143 The second gear portion 142 pushes the first gear portion 141 backward of the body 110 while the vertical surface of the second gear portion 142 formed on the second gear portion 142 contacts the vertical surface of the first gear portion 141 The cylinder mounting portion 130 is moved backward.

The cylinder moving unit 140 moves the cylinder mounting unit 130 mounting the syringe cylinder 52 only in one direction due to the shape of the gear teeth of the first gear 141 and the second gear 144 And is locked in the other direction so as not to move.

Hereinafter, the operation of the automatic scanning apparatus according to the first embodiment of the present invention will be briefly described.

A method of mounting the syringe to the automatic scanning apparatus 100 will be described.

The plunger fixing part 120 hinged to the upper part of one side of the body 110 is rotated and the cylinder mounting part 130 is moved to the front side of the body 110 as much as possible. At this time, the syringe 50 should inject the chemical liquid into the syringe cylinder 52.

The syringe cylinder 52 is placed between the pair of rails of the cylinder mount 130 while the plunger 53 is moved to one side of the body 110 The plunger fixing portion 120 is formed to be in contact with the plunger. At this time, the portion (hub) to which the injection needle 51 fixed to the syringe cylinder 52 is fixed is placed on the seating groove portion 130a formed in the cylinder mounting portion 130, and the syringe cylinder 52 So that the end portion is brought into close contact with the portion where the pair of rails are connected.

Thereafter, the holding member 121 serving as the plunger fixing portion 120 is rotated to fit the pressing projection 53a of the syringe plunger 53 into the first holding groove 121c of the first holding groove 121b, Thereby fixing the syringe plunger 53 to the body 110. [

The fixing member 131 is fixed between the pair of rails in order to fix the syringe cylinder 52 located between the pair of rails which is the cylinder mounting portion 130. That is, the fitting protrusion 131b of the fixing member 131 is fitted and fixed in the fitting groove 130b formed in the rail. At this time, the fixing member 131 is in close contact with the knob protrusion 52a, and the pressing groove 131a of the fixing member 131 covers the upper portion of the syringe cylinder 52 and presses it.

When the syringe 50 is mounted on the automatic scanning device 100, the user pierces the injection needle 51 of the syringe 50 to a predetermined depth with respect to the skin of the operator, So that the portion 112a is brought into close contact with the skin.

Thereafter, the user operates the cylinder moving unit 140 to inject the chemical solution into the muscular layer while moving the cylinder mounting part 130, on which the syringe cylinder 52 is mounted, to the back of the body 110. [

In more detail, when the injection needle 51 is stuck to the muscle layer, the user pulls the operation lever 142 toward the handle 111. [ The upper end of the operation lever 142 is moved to the front of the body 110, unlike the lower end of the operation lever 142, which is moved toward the handle 111 (rear of the body).

Then, the pulling member 143 connected to the upper end of the operation lever 142 is moved toward the front side of the body 110 together with the upper end of the operation lever 142. At this time, the second gear portion 144 formed on the pulling member 143 slides with respect to the first gear portion 141 and moves toward the front of the body 110 together.

Then the pulling member 143 connected to the upper end of the operation lever 142 is moved to the rear of the body 110 together with the upper end of the operation lever 142 when the user places the pulled operation lever 142 toward the pull 111 . At this time, the second gear portion 144, which is moved to the rear of the body 110 due to the engagement of the second gear portion 144 formed on the pulling member 143 and the first gear portion 143, So that the first gear portion 143 is pressed against the rear side of the body 110. Accordingly, the pair of rails, which are the cylinder mounting portions 130 formed with the first gear portion 143, are moved to the rear of the body 110. The movement distance of the cylinder mounting portion 130 becomes equal to the straight line distance at which the upper end of the operation lever 142 is moved to the rear of the body 110 when the operation lever 142 is rotated.

Therefore, in the automatic scanning apparatus 100 according to the first embodiment of the present invention, the user inserts the chemical liquid into the muscle layer while repeating the operation of pulling and releasing the operation lever 142.

Second Embodiment

9 is a perspective view briefly showing an automatic scanning apparatus according to a second embodiment of the present invention.

Referring to FIG. 9, the automatic scanning apparatus according to the second embodiment of the present invention uses power in contrast to the operation of the operator by hand in the automatic scanning apparatus according to the first embodiment, A plunger fixing part 120 provided on the body 110 and fixing the end of the syringe plunger 53 and a cylinder for movably mounting the syringe cylinder 52 on the body 110. [ A mounting portion 130 and a cylinder moving unit 170 for moving the cylinder mounting portion 130 to the plunger fixing portion 120 side.

The body 110, the plunger fixing part 120 and the cylinder mounting part 130 are fixed to the body 110, the plunger fixing part 120, the cylinder mounting part 130 in the automatic scanning device according to the first embodiment of the present invention, And a detailed description thereof will be omitted.

The cylinder moving unit 170 is for moving the cylinder mounting portion 130 on which the syringe cylinder 52 is mounted by generating a rotational force and includes a motor 171, a pinion gear 172, a rack gear 173, A battery (not shown), and an operation switch 174.

The motor 171 is coupled to the inside of the body 110, and the drive shaft is installed toward the side of the body 110. Here, the motor 171 is installed in a direction orthogonal to the longitudinal direction of the body 110.

The pinion gear 172 is fixed to the drive shaft of the motor 171 and rotated when the motor 171 is driven.

The rack gear 173 is formed on the bottom surface of the cylinder mounting portion 130 and is formed in the front and rear direction of the body 110 and engaged with the pinion gear 172.

The operation switch 174 is connected to the motor 171 so that the user is configured to press with the finger and is configured to drive the motor 171 while the user is pressing.

The battery is installed in the body 110 and is configured to be connected to the motor 171 and the operation switch 174 to supply electricity to the motor 171 when the operation switch 174 is operated by the user.

The cylinder moving unit 170 further includes a changeover switch (not shown) for changing the moving direction of the cylinder mounting portion 130 for driving the motor 171 in the reverse direction.

As shown in Fig. 10, another embodiment of the power-driven cylinder moving unit includes a motor 171 that generates rotational force and is installed in the front and rear direction of the body 110, A second bevel gear 176 engaged with the first bevel gear 175 and formed to be larger than the first bevel gear 175 and a second bevel gear 176 meshing with the center of the second bevel gear 176, And a pinion gear 177 which is formed on the bottom surface of the cylinder mounting portion 130 and which is rotatable with the second bevel gear 176. The pinion gear 177 A battery 173 for supplying electricity to the motor 171 and an operation switch 174 for operating the motor 171. The operation of the motor 171 will be described in detail with reference to FIGS.

This is a structure in which the rotational force of the motor 170 is decelerated by the gear while the motor 170 is installed in the forward and backward directions of the body 110 to form the body 110 slimly.

The cylinder moving unit 170 may be constituted by a solenoid which is operated by receiving electricity from a battery and is directly connected to the cylinder mounting part 130 so as to move the cylinder mounting part 130 in the forward and backward directions of the body 110 have. A solenoid (not shown) is installed in the front-rear direction of the body 110, and linearly moves the drive shaft by a magnetic field generated by electricity. The operation relationship between the drive shaft and the components is well known in the art. . It is needless to say that the solenoid is configured to be driven by an operation switch provided on the body 110. [

Hereinafter, the operation of the automatic scanning apparatus according to the second embodiment of the present invention will be briefly described.

A method of mounting a syringe to an automatic scanning device will be described.

The plunger fixing part 120 hinged to the upper part of one side of the body 110 is rotated and the cylinder mounting part 130 is moved to the front side of the body 110 as much as possible. At this time, the syringe 50 should inject the chemical liquid into the syringe cylinder 52.

The syringe cylinder 52 is positioned between the pair of rails of the cylinder mount 130 while the syringe plunger 53 is moved between the pair of rails of the body 110 And is located below the plunger fixing part 120 formed on one side. At this time, the portion (hub) to which the injection needle 51 fixed to the syringe cylinder 52 is fixed is placed on the seating groove portion 130a formed in the cylinder mounting portion 130, and the syringe cylinder 52 So that the end portion is brought into close contact with the portion where the pair of rails are connected.

Thereafter, the holding member 121 serving as the plunger fixing portion 120 is rotated to fit the pressing projection 53a of the syringe plunger 53 into the first holding groove 121c of the first holding groove 121b, Thereby fixing the syringe plunger 53 to the body 110. [

The fixing member 131 is fixed between the pair of rails in order to fix the syringe cylinder 52 located between the pair of rails which is the cylinder mounting portion 130. That is, the fitting protrusion 131b of the fixing member 131 is fitted and fixed in the fitting groove 130b formed in the rail. At this time, the fixing member 131 is in close contact with the handle projection 52a of the cylinder 52, and the pressing groove 131a of the fixing member 131 covers the upper portion of the cylinder 52 and presses it.

When the syringe 50 is mounted on the automatic scanning device 100, the user pierces the injection needle 51 of the syringe 50 to a predetermined depth with respect to the skin of the operator, So that the portion 112a is brought into close contact with the skin.

Up to this point, the operation is the same as that of the automatic scanning apparatus according to the first embodiment of the present invention.

Thereafter, the user operates the cylinder moving unit 147 to inject the chemical solution into the muscular layer while moving the cylinder mounting part 130, on which the syringe cylinder 52 is mounted, to the back of the body 110.

In more detail, the user presses the operation switch 174 provided on the handle 111. Then, electricity is supplied from the battery (not shown) to the motor 171 to drive the motor 171.

Then, the drive shaft of the motor 171 rotates, and the pinion gear 172 fixed to the drive shaft rotates. Then, the rack gear 173 formed on the bottom surface of the cylinder mounting portion 130 engaged with the pinion gear 172 is moved to the rear of the body 110.

When the cylinder mounting portion 1130 moves to the rear side of the body 110, the cylinder 52 moves rearward, and the syringe plunger 53 inserted into the syringe cylinder 52 pushes the chemical solution accommodated in the syringe cylinder 52 And pressurized. Then, the chemical solution in the syringe cylinder 52 is uniformly injected into the muscle layer through the injection port of the injection needle 51.

Third Embodiment

The automatic injector according to the third embodiment of the present invention includes a syringe 50 composed of a syringe cylinder 52 and a syringe plunger 53 to which a syringe 51 is fixed for injecting a drug solution into muscles, A plunger fixing part 120 for fixing the syringe plunger 53 to the body 110 and a syringe cylinder 52 for movably mounting the syringe cylinder 52 on the body 110. The body 110 includes a handle 111, And a cylinder moving unit 140 (170) for moving the cylinder mounting unit 130 toward the plunger fixing unit 120. The cylinder mounting unit 130 includes:

The syringe 50 is a generally used syringe and includes a syringe cylinder 52 having an injection needle 51 at one end and containing a chemical liquid therein and a syringe cylinder 52 movably fitted in the syringe cylinder 52, And a syringe plunger 53 which pressurizes the chemical liquid in the injection needle 52 and discharges it through the injection needle 51. The injector 50 is configured such that the drug solution is injected into the skin through the injection port formed at the end of the injection needle 51 in a state in which the injection needle 51 is punctured to a predetermined depth in the skin.

The injection needle 51 is integrally fixed to the end of the syringe cylinder 52 or is detachably provided and has an injection port for injecting a chemical solution at an end portion of the injection needle 51 which penetrates the skin. The injection port in the injector 50 is formed to be injected in the longitudinal direction of the injection needle 51 when the chemical liquid is injected.

The body 110, the plunger fixing part 120, and the cylinder mounting part 130 are the same as the body, the plunger fixing part, and the cylinder mounting part described in the first and second embodiments, A description thereof will be omitted.

The cylinder movement units 140 and 170 can be selected and used by the cylinder movement unit 140 described in the first embodiment and the cylinder movement unit 170 described in the second embodiment. A detailed description of the structure and operation will be omitted.

Having thus described a particular portion of the present invention in detail, those skilled in the art will appreciate that these specific embodiments are merely preferred embodiments and that the scope of the present invention is not limited thereby Will be clear. It is therefore intended that the scope of the invention be defined by the claims appended hereto and their equivalents.

50: Syringe
51: Needle
52: syringe cylinder 52a: handle projection
53: syringe plunger 53a: pressing projection
100: Automatic injection device
110: Body 111: Handle
112: Support member
120: plunger fixing portion 121, 122:
121a: grip portion 121b: first gripping groove
121c: first support groove 122a:
122b: first grip protrusion 122c: second grip protrusion
122d: second holding groove 122e: second holding groove
130: cylinder mounting portion 130a:
130b: fitting groove
131: Fixing member 131a:
131b:
131-1: Fixed body 131-1a:
131-2: pressing member 131-2a: pressing groove
131-3: Elastic member
140: cylinder moving unit
141: first gear portion 142: operating lever
143: pulling member 144: second gear portion
145: return spring
170: cylinder moving unit
171: Motor 172: Pinion gear
173: Rack gear 174: Operation switch

Claims (25)

body;
A plunger fixing unit provided on the body and fixing the syringe plunger;
A cylinder mounting portion for movably mounting the syringe cylinder in which the chemical liquid is accommodated to the body; And
And a cylinder moving unit for moving the cylinder mounting portion toward the plunger fixing portion,
The cylinder mounting portion on which the syringe cylinder is mounted is moved to the plunger fixing portion by the cylinder moving unit when the chemical liquid is injected into the muscle layer,
The cylinder mounting portion
A pair of rails provided so as to move through the body in the longitudinal direction of the syringe and spaced apart from each other in a longitudinal direction of the syringe,
Wherein the pair of rails are formed in an L shape in cross section and are configured to be moved together when the front end and the rear end are connected to each other to form an integral body and move through the body.
A syringe cylinder comprising a syringe cylinder to which a chemical liquid is injected and to which a chemical liquid is injected, and a syringe plunger which is provided so as to be advanced and retracted in the syringe cylinder;
body;
A plunger fixing unit provided on the body and fixing the syringe plunger;
A cylinder mounting portion for movably mounting the syringe cylinder to the body;
And a cylinder moving unit for moving the cylinder mounting portion toward the plunger fixing portion,
The cylinder mounting portion on which the syringe cylinder is mounted is moved to the plunger fixing portion by the cylinder moving unit when the chemical liquid is injected into the muscle layer,
The cylinder mounting portion
A pair of rails provided so as to move through the body in the longitudinal direction of the syringe and spaced apart from each other in a longitudinal direction of the syringe,
Wherein the pair of rails are formed in an L shape in cross section and are configured to be moved together when the front end and the rear end are connected to each other to form an integral body and move through the body.
3. The method according to claim 1 or 2,
The body,
Further comprising a support member protruding from both sides of the body and extending to the front end of the cylinder mounting portion on which the syringe cylinder is mounted so as to support the skin so that the automatic injection device does not flow during the chemical solution injection.
The method of claim 3,
The support member,
Wherein the cylinder mounting portion is formed to be larger than the cylinder mounting portion in a state where the cylinder mounting portion is maximally moved toward the front side of the body and is formed to be smaller than the injection needle projecting to the front end portion of the cylinder mounting portion, Injection device. 5. The method of claim 4,
The support member,
Further comprising a tightening portion for bending the front end of the supporting member in contact with the skin so that the front end of the supporting member is completely in contact with the skin. 3. The method according to claim 1 or 2,
The plunger-
And a grip member which is hinged to the body and which grips and grips the upper portion of the pressing projection of the syringe plunger.
The method according to claim 6,
The gripping member
Wherein the upper end is hinged to the upper end of the body in a "T" shape, and a grip portion having a first gripping groove for wrapping the upper portion of the pressing projection of the syringe plunger is protruded downward at the center thereof.
8. The method of claim 7,
In the first gripping groove,
Wherein a first support groove is formed so that the upper edge of the pressing projection of the syringe plunger is fitted so that the pressing projection is not released in the moving direction of the cylinder mounting portion.
The method according to claim 6,
The gripping member
A grip main body hinged to an upper end of the body and having a space formed therein;
A first gripping protrusion provided to move in a direction orthogonal to the moving direction of the cylinder mounting portion at a lower portion of the gripping body and having a second gripping groove surrounding the upper one side of the pressing protrusion; And
And a second grasping projection provided side by side with the first grasping projection and moved in the same direction as the moving direction of the first grasping projection and having another second grasping groove facing the second grasping groove of the second grasping projection , Automatic injection device.
delete delete 3. The method according to claim 1 or 2,
In the cylinder mounting portion,
To place the syringe cylinder between a pair of rails, to place the handle protrusion of the syringe cylinder between the pair of rails, and to secure the syringe cylinder between the pair of rails so that the handle protrusion does not flow in the pair of rails Further comprising a fixing member. 13. The method of claim 12,
The fixing member
And a semicircular pressing recessed portion for pressing and supporting the upper portion of the syringe cylinder is formed in the lower portion.
14. The method of claim 13,
The fixing member,
And fitting protrusions protruding from both side portions thereof are fitted and fixed in fitting grooves formed in the vertical portions of the pair of rails.
13. The method of claim 12,
The fixing member,
A fixing body formed with fitting protrusions on both side portions so as to fit into fitting grooves formed in the vertical portions of the pair of rails,
A pair of pressing members installed to move in a direction orthogonal to a moving direction of the cylinder mounting portion from a lower side of the fixed body and having an arc-shaped pressing groove portion to surround one side of the upper portion of the syringe cylinder;
And an automatic scanning device.
16. The method of claim 15,
The fixing member,
Further comprising an elastic member for elastically supporting the pair of pressing members against both sides of the fixed body.
3. The method according to claim 1 or 2,
In the cylinder moving unit,
A first gear portion formed on a bottom surface of the cylinder mounting portion;
An operating lever hinged to the body so as to be pivoted in the longitudinal direction of the syringe cylinder in front of the handle of the body;
A pulling member connected to an upper end of the operation lever and moved in the forward and backward directions of the body when the operation lever is operated to pull the cylinder mounting portion;
A second gear portion formed on an upper surface of the pulling member; And
A return spring coupled to the operating lever and having opposite ends each resiliently supported on the operating lever and the handle to return the operating lever to the win position;
And an automatic scanning device. 18. The method of claim 17,
The first gear portion and the second gear portion,
When the handle side is referred to as the rear side and the operation lever side is referred to as the front side in the body,
The vertical surface of the gear teeth of the first gear portion is directed toward the front of the body and the inclined surface is directed toward the rear of the body,
And the vertical surface of the gear teeth of the second gear portion is directed toward the rear of the body and the inclined surface is formed toward the front of the body. 18. The method of claim 17,
The operation lever,
Wherein a hinge portion is formed at a portion spaced apart from an upper end portion such that the upper end portion is moved forward of the body and the lower end portion is moved rearward of the body.
18. The method of claim 17,
The pull-
And is configured to be disposed in parallel with the cylinder mounting portion on the lower side of the cylinder mounting portion and connected to the upper end of the operation lever to be moved in the front-rear direction of the body together with the upper end of the operation lever when the operation lever is pulled.
3. The method according to claim 1 or 2,
In the cylinder moving unit,
A motor provided in the body for generating a rotational force;
A pinion gear fixed to the drive shaft of the motor and rotated;
A rack gear formed on a bottom surface of the cylinder mounting portion and engaged with the pinion gear;
An operation switch provided on the body or the handle and for driving the motor; And
And a battery for supplying electricity to the motor. 22. The method of claim 21,
In the cylinder moving unit,
Further comprising a changeover switch provided on the body or the handle and connected to the motor for changing the direction of rotation of the drive shaft of the motor. 3. The method according to claim 1 or 2,
In the cylinder moving unit,
A solenoid for connecting the drive shaft to the cylinder mounting portion and moving the cylinder mounting portion while linearly moving the drive shaft by electric power supply;
A battery powered by a solenoid;
And an actuation switch for actuating the solenoid.
3. The method according to claim 1 or 2,
The syringe cylinder,
Further comprising an injection needle for piercing the skin at a predetermined depth to inject the drug solution into the muscle layer.
25. The method of claim 24,
The injection needle,
Wherein the injection port is integrally fixed to the end of the syringe cylinder or is detachably provided, and an injection port for injecting the chemical liquid is formed at an end portion that pierces the skin.

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