KR20140023033A - Pitch adjustment type of auxiliary device for injecting drug - Google Patents

Abstract

The present invention relates to a pitch adjustment type auxiliary device for injecting drugs and more specifically, to a pitch adjustment type auxiliary device for injecting drugs in which a syringe is installed in order to inject predetermined amount of drugs by automatically adjusting the amount. The device according to the present invention is formed with a drug injection module (101) in which the syringe is held, and a transfer module (102) which transfers the drug injection module (101). The drug injection module (101) comprises: a supporting plate (11) which is horizontally extended; a transfer handle (12a) which is installed for the syringe to be held by leaving a predetermined distance from the upper surface of the supporting plate (11); a first driving motor (M1); a first gear (13a) which is connected to the first driving motor (M1) and a second gear (13b) which is connected to the first gear (13a); and a transfer screw (14) which is rotated by driving the first driving motor (M1) and extended along the support plate (11) by being interlocked with the second gear (13b). The transfer module (102) comprises: a second driving motor (M2); a core member (16) combined with a shaft of the second driving motor (M2); a transfer pitch member (17) which is combined with the core member (16) as being transferrable and has pitches formed with predetermined intervals; and a module fixing member (18) which is combined with the transfer pitch member (17) and fixed to the supporting plate (11). The drug injection module (101) is transferred by transferring the transfer pitch member (17). Transfer of the transfer handle (12a) is controlled by the first driving motor (M1).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a Pitch Adjustment Type of Auxiliary Device for Injecting Drug

The present invention relates to a pitch-regulating drug injection assist device, and more particularly, to a pitch-regulating drug injection assist device in which a syringe is mounted so that a predetermined amount of drug can be automatically regulated and injected into the body.

A syringe is a mechanism for injecting a chemical solution into a predetermined part of an organism, and generally consists of a cylinder, a piston, and an injection needle. A scale indicating the amount of the chemical solution to be injected into the peripheral surface of the piston is engraved, and the drug determined through the injection needle can be injected into the organism by the movement of the cylinder. If the injection of the syringe is done by hand, it is difficult to inject the correct amount and the injection needle is difficult to be positioned at the predetermined position.

As a prior art for solving the problem of manual operation of a syringe, Patent Publication No. 2012-0044797 " Drug injecting device for skin treatment " The prior art includes a syringe injecting drug into the 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 an injection assembly mounted on one side of the transfer guide assembly and the injection assembly, the injection assembly actuating when the transfer guide assembly moves to one end of the limited range as the needle end contacts the skin, And a control unit for stopping the operation of the injection assembly when the transfer guide assembly is moved toward the tip end of the limited range. The injection assembly moves the rod to the needle side by a distance that the cylinder is retracted toward the injection assembly And a drug delivery device for a skin treatment.

Another prior art associated with drug injection devices is Patent Registration No. 1007094, " Drug Injection Device ". The prior art includes a case formed in a bar shape; A syringe support provided at an upper portion of the case and mounted with a syringe; A needle insertion cylinder provided in the case to generate a pressure to be inserted into the skin on the needle of the syringe; A drug injection cylinder provided in the case to generate a pressure for injecting a drug stored in the syringe into the skin; And a motion transmission unit for transmitting a force generated by the expansion and contraction operation of the drug injection cylinder to a rear end of the syringe to inject a drug, wherein the motion transmission unit transmits a pressure to a rear end of the syringe. First and second pedestals fixed inside the case to support the stick to reciprocate linearly; A frictional plate having an insertion hole formed at the center thereof to insert the stick and providing a static frictional force so that the stick moves linearly; And a displacement regulating unit for regulating the displacement of the friction plate by the expansion and contraction operation of the drug injection cylinder, wherein the displacement regulating unit includes: a threaded portion formed on an outer circumferential surface thereof to be screwed into a through hole formed in the first pedestal; An adjusting screw coupled to one side of the threaded portion to move the threaded portion; And an impact preventing member provided on the other side of the threaded portion to absorb an impact and a noise when colliding with the friction plate.

The proposed prior art is disadvantageous in that it is difficult to precisely control the injection amount of the drug while the manual operation can be accompanied by the control of the cylinder to be moved by a predetermined distance in the drug injection process using the dice or the use of the solenoid valve.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art and has the following objectives.

It is an object of the present invention to provide a drug infusion aid device capable of controlling the movement and the infusion process of the drug infusion module so that the amount of drug infusion and the rate of drug infusion can be controlled.

According to a preferred embodiment of the present invention, the drug injection assist device comprises a drug injection module on which the syringe is mounted and a movement module for moving the drug injection module, the drug injection module comprising: a horizontally extending support plate; A moving clamp and a fixed clamp installed so that the syringe can be mounted at a distance from the upper surface of the receiving plate; A first drive motor; A second gear connected to the first gear and the first gear connected to the first drive motor; And a moving screw which is engaged with one end of the second gear and rotated by driving of the first driving motor and extends along the receiving plate, the moving module comprising: a second driving motor; A center member coupled to an axis of the second drive motor; A moving pitch member movably coupled to the center member and having a pitch formed at regular intervals; And a module fixing member coupled to the moving pitch member and fixed to the receiving plate, wherein the drug injection module is moved by the movement of the moving pitch member and the moving clamp is controlled to move by the first driving motor.

According to another preferred embodiment of the present invention, the moving clamp comprises a straddling body to which one end of the syringe is fixed and a moving bracket coupled to the moving screw.

According to another preferred embodiment of the present invention, there is further included a movement stopper coupled to the moving screw to limit movement of the moving clamp.

The apparatus according to the present invention has an advantage that precise drug injection can be performed while simplifying the drug injection process by allowing the movement of the drug injection module itself to be controlled. Further, the apparatus according to the present invention has an advantage that the shock due to the use of the injector can be alleviated by making it possible to control the drug infusion rate.

1 schematically shows the structure of a drug infusion aid according to the present invention.
2A and 2B are a perspective view and a front view, respectively, of a drug injection assist device according to the present invention.
FIG. 3 illustrates an embodiment of a drug infusion process in the drug assistance device according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

1 schematically shows the structure of a drug infusion aid according to the present invention.

Referring to FIG. 1, a drug injection assist device 10 according to the present invention includes a drug injection module 101 in which a syringe is mounted and a movement module 102 for moving a drug injection module 101, (101) comprises a horizontally extending support plate (11); A moving clamp 12a and a fixing clamp 12b provided so that the syringe can be mounted at a predetermined distance on the upper surface of the receiving plate 11; A first drive motor M1; A first gear 13a connected to the first drive motor M1 and a second gear 13b connected to the first gear 13a; And a moving screw (14) which is engaged at one end with the second gear (13b) and driven by the first driving motor (M1) and extends along the receiving plate (11) A second drive motor M1; A center member 16 coupled to the shaft of the second drive motor M1; A moving pitch member (17) movably coupled to the center member (16) and having a pitch formed at regular intervals; And a module fixing member 18 coupled to the moving pitch member 17 and fixed to the receiving plate 11. The drug injection module 101 is moved by the movement of the moving pitch member 17, The movement of the clamp 12a is controlled by the first drive motor M1.

The drug injection assist device 10 according to the present invention can be used when injecting a drug or other liquid substance using a syringe to any object such as a human body, an animal body or an experimental specimen.

The drug injection assisting device 10 comprises a drug injection module 101 for allowing a drug to be injected by the movement of the piston and a movement module 102 for moving the drug injection module 101 to a predetermined position .

The drug infusion module 101 includes a receiving plate 11 having a plate shape extending horizontally, a moving clamp 12a disposed at a predetermined interval so that a syringe can be installed on the upper surface of the receiving plate 11, A first gear 13a and a second gear 13b connected to the first drive motor M1 for transmitting power and a second gear 13b for moving the first clamping member 12a, And a moving screw 14 for movement of the clamp 12a.

The receiving plate 11 may have a flat upper surface on which a movable clamp 12a and a fixed clamp 12b can be installed, having a constant plate shape. The support plate 11 is installed so as to be movable forward or backward by the movement module 102 and the entire drug injection module 101 is moved forward or backward as indicated by an arrow by the movement of the support plate 11 .

A syringe may be provided between the movable clamp 12a and the fixed clamp 12b which are arranged at regular intervals above the support plate 11. [ The front portion of the syringe where the needle is located can be fixed to the fixed clamp 12b and the piston can be fixed to the moving clamp 12a. The movable clamp 12a and the fixed clamp 12b may each have a structure suitable for fixing a corresponding portion of the die, and the present invention is not limited thereto. The moving clamp 12a may be installed to be movable forward or backward along the receiving plate 11 as indicated by the arrow A and the fixing clamp 12b may be installed in a fixed form on the front side of the receiving plate 11 . The moving clamp 12a may be composed of a straddling body 121 to which the syringe is fixed and a moving bracket 122 provided below the receiving plate 11. [ The moving clamp 12a can be moved forward or backward along the receiving plate 11 as the moving bracket 122 moves along the moving screw 14. [

The moving clamp 12a can be moved by driving the first driving motor M1. The first drive motor M1 may be, for example, a stepping motor capable of controlling the speed and the direction of rotation, and the first and second gears 13a and 13b may be provided on the shaft of the first drive motor M1 Can be connected in order. The first gear 13a is connected to the motor shaft and the second gear 13b can be engaged with the first gear 13a and the moving screw 14. [ The first gear 13a and the second gear 13b are sequentially rotated by the driving of the first driving motor M so that the moving screw 14 can be rotated. And the movable clamp 12a can be moved forward or backward by the rotation of the movable screw 14. [ If the syringe is installed between the moving clamp 12a and the fixed clamp 12b, the piston is moved forward or backward by the rotation of the first driving motor M1. The first gear 13a or the second gear 13b may be any type of gear known in the art, and the present invention is not limited by the type of gear.

The movable screw 14 may be installed in a structure extending along the receiving plate 11 under the receiving plate 11 but is not limited thereto and may engage with the second gear 13b and may be rotated by the moving clamp 12a Lt; RTI ID = 0.0 > a < / RTI > The moving bracket 122 can be engaged with the moving screw 14 and the moving bracket 122 can have threads or similar engaging means that can be engaged with the moving screw 14. [

The transfer module 102 corresponds to a device for moving the drug injection module 101 to a predetermined position and is connected to a shaft or gear G of the second drive motor M2, A movable pitch member 17 having a pitch formed at regular intervals and movably coupled to the center member 16 and a module fixing member 17 coupled to the moving pitch member 17 and fixed to the receiving plate 11, 18).

The second drive motor M2 may be of the same or similar type as the first drive motor M1, but is not limited thereto. The center member 16 can be rotated by the second drive motor M2 and the moving pitch member 17 can be coupled to the center member 16. [ The moving pitch member 17 can be a hollow cylindrical shape and the center member 16 can have a circular rod shape or a shaft shape. And the center member 16 is inserted into the moving pitch member 17. Alternatively, the central member 16 and the moving pitch member 17 can be made integral. Therefore, the center member 16 and the moving pitch member 17 are not necessarily formed as separate components, but may be rotated by the driving of the second driving motor M2, Lt; / RTI >

The module fixing member 18 may have a structure that is fixed to the drug injection module 101 and can be moved by the movement pitch member 17. As shown in Fig. 1, the module fixing member 18 can be fixed to the receiving plate 11 at one portion and to the moving pitch member 17 at the other portion. The movement or rotation of the moving pitch member 17 causes the module fixing member 18 to move forward or backward and thus the support plate 11 can be moved. The module fixing member 18 can be made in various structures and is not limited to the embodiments shown.

An embodiment of the entire structure of the drug injection assist device according to the present invention will be described below.

2A and 2B are a perspective view and a front view, respectively, of a drug injection assist device according to the present invention.

Components having the same reference numerals in different drawings herein have the same or similar functions. Therefore, it will not be repeated unless necessary for the sake of brevity.

2A and 2B, the drug injection assist device 10 may have a housing 21 and a handle 22, and each device may be installed inside the housing 21 and the handle 22. [ The drug injection assist device 10 may also include an actuation switch module 24 mounted on the handle 22 for actuation start and stop.

The housing 21 or the handle 22 may be provided with a fixing pin F for engaging the housing 21 or the handle 22 inside or outside the housing 21 or the handle 22, And may have any shape suitable for the operation of, or use of, the apparatus.

The supporting plate 11 can be formed with a moving groove 23 in which the moving clamp 12a can be moved and the moving clamp 12a is moved along the moving groove 23 by the driving of the first driving motor M1 It can be moved forward or backward. The support plate 11 can be moved along the guide by the operation of the second drive motor M2 and a safety stopper for restricting the movement can be installed in the guide if necessary.

2A and 2B, the second drive motor M2 can be fixed by a device such as a clamp, and the shaft gear of the second drive motor M2 is engaged with one part of the center member 16 . A thread having a predetermined pitch can be formed along the circumferential surface of the center member 16 and the center member 16 can be rotated by the rotation of the second drive motor M2.

The moving pitch member 17 can be cylindrical in which the center member 16 can be inserted and a thread can be formed on the inner surface to engage with the threads of the center member 16. [ One of the portions of the module fixing member 18 is fixed to the receiving plate 11 and the other portion of the module fixing member 18 can be installed in such a structure that one portion of the moving pitch member 17 is in contact with the central member 16 while being penetrated. When the center member 16 is rotated by the rotation of the second driving motor M2, the moving pitch member 17 can be moved forward or backward in accordance with the rotational direction of the center member 16. As the moving pitch member 17 moves, the module fixing member 18 moves along the center member 16, whereby the receiving plate 11 can be moved forward or backward.

Various structures for the movement of the support plate 11 are possible and the present invention is not limited to the embodiments shown.

A position sensor 25 may be provided in front of the securing clamp 12b. The position sensor 25 measures the distance between the object (not shown) and the fixed clamp 12b so that the travel distance of the drug infusion module can be calculated. The information on the distance measured by the position sensor 25 can be transmitted to the controller 27 and the controller 27 controls the number of rotations of the second driving motor M2 based on the transmitted information, The moving distance of the injection module can be determined. And the drug injection module can be moved by the operation of the switch module 24. [ The control device 27 is for operating each device, and can control the moving distance of the drug infusion module and the moving distance of the moving clamp 12a, for example.

A variety of devices may be added to the device according to the present invention, for example, a display device may be added to indicate such things as the operating state of the device or the amount of drug infusion. In addition, an alarm device may be installed in the device according to the present invention to alert the user in case there is an error in the operation of the device.

Hereinafter, a process of controlling the injection amount of the drug in the device according to the present invention will be described.

FIG. 3 illustrates an embodiment of a drug infusion process in the drug assistance device according to the present invention.

Referring to Fig. 3A, a syringe may be installed between the moving clamp 12a and the fixed clamp, and one end of the cylinder S and the piston P may be fixed to the clamp 12a. The movable clamp 12a is fixed to one end of the support member 31 and the support member 31 to form a fixed portion 32a that supports one end of the cylinder S and a fixed gap 32b that faces the fixed portion 32a And a moving part 32b provided on the supporting member 31 to be movable. A distance sensor 33 may be attached to one end of the moving part 32b and a moving scale 34 may be formed at an appropriate interval in the supporting member 31. [ The moving distance of the moving member 32b may be determined by the distance sensor 33.

Referring to FIG. 3 (B), the moving bracket 122 of the moving clamp may be movably coupled along the moving screw 14, and the moving stopper 35 may be installed on the moving screw 14. The movable stopper 35 can be a hollow cylindrical shape and can be coupled in such a manner that the movable screw 14 is inserted. Locking means 351a and 351b are provided on the movement stopper 35 so that the movement stopper 35 can be fixed at a predetermined position.

When the amount of injected drug is determined in the injector, the moving distance of the moving part 32b can be determined and transmitted to the control device. The control device moves the movement stopper 35 so that the distance between the movement bracket 122 and the movement stopper 35 corresponds to the distance conveyed from the control device and is moved to the movement stopper 35 by the locking means 351a and 351b And fixed at a predetermined position of the movable screw 14. [ As the moving screw 14 is rotated by the driving of the first driving motor and the moving bracket 122 is moved accordingly, the piston P moves and the drug can be injected. When the moving bracket 122 contacts the moving stopper 35, the driving of the first driving motor is interrupted, so that the drug injection can be stopped. The injection speed of the drug can be controlled by the driving speed of the first driving motor. As described above, according to the present invention, the rate of drug injection is controlled by the rotation speed of the first driving motor, and at the same time, the movement of the movement bracket 122 is controlled so that the drug injection amount can be controlled.

The control of the drug injection amount can be performed in various ways, and the embodiment shown in FIG. 3 is an illustrative example, and the present invention is not limited thereto.

The apparatus according to the present invention has an advantage that accurate drug injection can be performed while simplifying the drug injection process by allowing the drug injection module itself to be controlled in its movement. Further, the device according to the present invention has an advantage that the shock due to the use of the injector can be mitigated by making it possible to control the drug infusion rate.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention . The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

10: drug injection assist device 101: drug injection module
102: Moving module
11: Support plate 12a: Movable clamp
12b: Fixing clamp 13a: First gear
13b: second gear 14: moving screw
16: center member 17: moving pitch member
18: Module fixing member
21: housing 22: handle
23: moving groove 24: switch module
25: position sensor 27: control device
31: support member 32a: fixed portion
32b: moving part 33: distance sensor
34: Movement scale
121: Stacking body 122: Moving bracket
M1: first drive motor M2: second drive motor

Claims (3)

A drug injection module 101 in which a syringe is mounted, and a movement module 102 for moving the drug injection module 101,
The drug injection module (101)
A receiving plate (11) extending horizontally;
A moving clamp 12a and a fixing clamp 12b provided so that the syringe can be mounted at a predetermined distance on the upper surface of the receiving plate 11;
A first drive motor M1;
A first gear 13a connected to the first drive motor M1 and a second gear 13b connected to the first gear 13a; And
And a moving screw (14) engaged with one end of the second gear (13b) and rotated by driving of the first driving motor (M1) and extending along the receiving plate (11)
The mobile module 102
A second drive motor M2;
A center member 16 coupled to the shaft of the second drive motor M2;
A moving pitch member (17) movably coupled to the center member (16) and having a pitch formed at regular intervals; And
And a module fixing member (18) coupled to the moving pitch member (17) and fixed to the receiving plate (11)
Characterized in that the drug infusion module (101) is moved by the movement of the movement pitch member (17) and the movement clamp (12a) is moved by the first drive motor (M1). 2. The drug infusion assisting apparatus according to claim 1, wherein the moving clamp (12a) comprises a straddling body (121) to which one end of the syringe is fixed and a moving bracket (122) coupled to the moving screw (14). The drug injection assistance device of claim 1, further comprising a movement stopper (35) coupled to the moving screw (14) to limit movement of the moving clamp (12a).

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