KR102067941B1 - Syringe assisting retraction of the plunger - Google Patents

Abstract

The present invention relates to a syringe to assist backward movement of a plunger, which comprises: a cylinder having a hallow structure, a needle mounted at one end, and a support mounted along the circumference of the other end; the plunger sliding in forward and backward directions in a hollow of the cylinder; and a supporter mounted at one end of the plunger and including a pressing part with a constant volume to press the plunger when coming in contact with a thumb and a bent part bent and extended from one end of the pressing part to surround a part of the thumb. Accordingly, a part of a thumb of medical staff is surrounded by the supporter mounted at an end part of the plunger, thereby providing an effect of conveniently pushing or pulling the plunger.

Description

Syringe to assist retraction of plunger {SYRINGE ASSISTING RETRACTION OF THE PLUNGER}

The present invention is a syringe assisting the retraction of the plunger, more specifically, by improving the shape of the pressing portion mounted on the end of the plunger to wrap the thumb of the medical worker can not only press the plunger but also can perform the pulling action conveniently The forward of the plunger as well as the syringe assists in the backward.

A syringe refers to a device for injecting a chemical liquid stored therein into the injection site of a patient using the piston principle.

That is, the syringe provides a role of stably injecting the chemical solution contained in the hollow of the cylinder to the patient's administration site, and the medical personnel such as doctors and nurses press the pressing part once to completely inject the chemical solution of the cylinder into the administration site. It is a general purpose.

However, in the case of filler or botox treatment, it is not necessary to inject all the chemical solution in the cylinder to one administration site, but to disperse the medicine solution at several local sites. When a certain amount of chemical is injected, it is retracted to the rear of the plunger to the other part so that the chemical is no longer injected into the local part but is ready to be injected into another part. In this process, the known pressing part is flat. It is inevitable to provide a special means of reversing the plunger, which inevitably forces the medical staff to move the thumb's position to the inner side of the press and pull it. In this process, the entire syringe is shaken to perform the microscopic procedure. The problem of spilling medicine In order to prevent such a problem, the other hand of the healthcare worker had to use the other hand to pull the pressing part, which was troublesome and inconvenient.

In order to prevent such a problem, it is disclosed that the injection solution automatic injection device of the domestic patent No. 1888352 provides a characteristic that can be injected into the injection site as much as desired through the motor device for controlling the amount of the chemical solution supplied to the syringe have.

However, this technique is not only inconvenient to use cumbersome means, such as a motor device, but also a problem that the liquid can leak from the needle of the syringe between supply and stop the injection.

Therefore, there is a need to develop a new and advanced syringe which can utilize a known syringe as it is, but can easily reverse the plunger by a simple operation of a medical worker.

SUMMARY OF THE INVENTION The present invention has been made to overcome the problems of the above technique, and provides a supporter having a bent portion extended to bend a portion of a medical worker's thumb in a pressing portion mounted at the end of the plunger to pull the plunger more conveniently. It is a primary object to provide a syringe that can be reversed.

Another object of the present invention is to provide an auxiliary supporter on one side of the cylinder.

Still another object of the present invention is to further provide various structures of the pressing portion and the bending portion of the supporter to further enhance the convenience of operation for the plunger.

A further object of the present invention is to install an elastic body on the supporter so that the supporter can respond to the movement of the thumb promptly.

In order to achieve the above object, the syringe assisting the reversal of the plunger according to the present invention, a hollow structure having a needle mounted at one end and a pedestal mounted along the circumference of the other end; A plunger slidably moving forward and backward in the hollow of the cylinder; A supporter mounted on an end of the plunger, the supporter having a pressing portion formed in a predetermined volume to be in contact with a thumb to press the plunger, and a bent portion extending to bend a portion of the thumb at one end of the pressing portion; It is characterized by.

In addition, the cylinder, characterized in that further provided with an auxiliary supporter protruding outward along the circumference of one side of the cylinder.

In addition, the pressing portion extends in a direction perpendicular to the end of the plunger, extends convexly rounded toward the end side of the plunger, and the bending portion has a first bend extending in the opposite direction of the plunger at one end of the pressing portion. And a second bent portion that is bent and extended in an extension direction of the pressing portion at an end portion of the first bent portion, wherein the overall shape of the supporter has a C shape or a shape similar to C.

According to the syringe which assists in the reverse of the plunger according to the present invention,

1) The part of the thumb of the medical worker is wrapped by the supporter mounted at the end of the plunger, so that the plunger can be pushed or pulled more conveniently.

2) Prevent unnecessary movement of the syringe by preventing the index finger and middle finger holding the cylinder through the auxiliary supporter,

3) By the various structures of the pressing part and the bending part of the supporter, not only the convenience of operation of the plunger can be doubled,

4) The elastic body mounted on the supporter prevents unnecessary spacing between the thumb, while the shape is sharply deformed according to the movement and manipulation of the thumb to minimize the spacing.

1 is a perspective view showing a basic embodiment of a syringe according to the present invention.
2 is a perspective view showing an embodiment in which an auxiliary supporter is mounted on a cylinder;
3 is a conceptual view illustrating an embodiment in which a friction pad is mounted on a pressing part.
4 to 5 is a conceptual diagram showing various embodiments of the supporter of the present invention.
6 is a conceptual diagram illustrating an embodiment in which an elastic body is mounted on the supporter of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are not drawn to scale, and like reference numerals in each of the drawings refer to like elements.

1 is a perspective view showing a basic embodiment of a syringe according to the present invention.

Referring to FIG. 1, the syringe 1 of the present invention has a cylinder 10 and a plunger 20 like a known syringe.

The cylinder 10 has a cylindrical structure extending in a predetermined length in a state having a hollow therein, and a needle 11 having a diameter smaller than the diameter of the cylinder is mounted at the end thereof to store the chemical liquid contained in the hollow of the cylinder 10. The needle 11 may be injected into the injection site of the patient.

In addition, it is possible to mount a pedestal 12 supporting the finger on the opposite side of the needle 11 to prevent the shaking of the syringe during injection.

The plunger 20 is inserted into the hollow of the cylinder 10 to move forward and backward along the longitudinal direction of the hollow of the cylinder 10 and to play a role of pushing the chemical liquid in the hollow of the cylinder 10 toward the needle side. It is equipped with a packing 21 that can ensure mobility while preventing slipping.

The present invention is characterized in that the supporter 100 is mounted at the end of the plunger 20, that is, the opposite side end of the packing 21 in the known syringe structure.

The supporter 100 of the present invention consists of a pressing part 110 and a bending part 120.

The pressing portion 110 has a shape similar to that mounted at the end of the known plunger 20, and is fixed in a state having a diameter larger than the end diameter of the plunger 20 so as to be in contact with the thumb and to push the plunger 20 easily. Volume and volume, which may be made in a variety of shapes, but in Figure 1 is shown to have a shape similar to the disk larger than the end diameter of the plunger 20, the disk shape is constant in the direction perpendicular to the end of the plunger 20 It has a structure extending in length.

The bent portion 120 means a portion which is bent and extended to surround at least a portion of the thumb at at least one end of the pressing portion 110.

The shape of the bent portion 120 can also be made of a variety of structures, Figure 1 illustrates a structure that is bent round in the direction of the plunger 20 on one side of the pressing portion (110).

The bent portion 120 is a problem that occurs in an environment in which the medicine liquid contained in the syringe 1 is to be injected into a plurality of topical administration sites, that is, the syringe shakes or the medicine liquid is moved in the process of moving the thumb or using both hands of a medical worker. As a means to solve the problem of leakage, at least a portion of the thumb, for example, the side portion of the thumb wrapped around the thumb when the medical worker pulls the plunger 20, the bent portion 120 while the thumb 120 The guide guides the backward action of the plunger 20 provides a characteristic that can assist the reverse of the plunger 20 more smoothly.

At this time, the bent portion 120 is easily bent in the process of pulling the plunger 20, or when the elasticity is strong, because it can not properly assist the backward of the plunger 20 in the state having a similar strength to the pressing portion 110 It is desirable to ensure sufficient thickness and volume.

In summary, according to the structure and function of the bent portion 120 described above, medical workers give the plunger 20 a more convenient and stable reversal when the chemical solution is to be divided and injected into various local sites.

2 is a perspective view illustrating an embodiment in which an auxiliary supporter is mounted to a cylinder.

As can be seen from FIG. 2, around the one side of the cylinder 10, the auxiliary supporter 13 is mounted to protrude outward.

The auxiliary supporter 13 may be formed in a disk shape similar to a known pressing part, but is not limited thereto, and the terminal supporter 13 may have a triangular structure protruding toward the needle 11 side as shown in FIG. 2. Do. In particular, the side facing the supporter 100 side in the auxiliary supporter 13 is preferably made flat.

According to such an auxiliary supporter 13, when the plunger 20 is reversed, the doctor's index finger and middle finger are inclined toward the needle 11 in response to preventing the syringe 1 from shaking. to provide. In other words, the index finger and middle finger located on one side or the pedestal 12 of the cylinder 10 may be shaken by repulsion or the needle 1 may be shaken while the thumb is moved backward, and the syringe 1 may be shaken. (13) acts as a kind of stopper that prevents the index finger and the stop from moving over a certain distance, so that the index finger and the stop are pushed by a certain distance and stopped by the auxiliary supporter 13, thereby eliminating the unnecessaryness of the syringe 1. It can provide a property to prevent shaking.

3 is a conceptual view illustrating an embodiment in which a friction pad is mounted on a pressing part.

Referring to FIG. 3, it can be seen that the friction pad 130 is mounted on the inner surface of the bent portion 120.

The friction pad 130 may be mounted on the opposite side of the side connected to the plunger 20 in the pressing portion 110 in addition to the inner side of the bent portion 120.

The friction pad 130 has a greater coefficient of friction than the material of the pressing portion 110 or the bend 120, that is, the surface of the pressing portion 110 or the bending portion 120 is rougher or less slippery. It is made of material. Due to this, when the medical worker moves the thumb backward and moves the plunger 20 back, the thumb portion contacting the pressing part 110 or the bent part 120 slips and thus does not properly retract the plunger 20 or the syringe. (1) performs a function to prevent the problem of shaking.

4 to 5 are conceptual views illustrating various embodiments of the supporter of the present invention.

4 and 5 illustrate various embodiments of the supporter 100 of the present invention. In FIG. 4, the supporter 100 has a 'C' shape. In FIG. 5, the supporter 100 is 'O'. It is shown mainly in the shape.

First, according to the embodiment of FIG. 4 (a), the pressing portion 110 has a vertical direction with the end of the plunger 20 but does not extend in a completely vertical direction but has a convex shape toward the end side of the plunger 20. It is forcibly extended.

Correspondingly, the bent portion 120 includes a first bent portion 121 extending in the opposite direction of the plunger 20 at one end of the press portion 110 and a pressing portion 110 at the end of the first bent portion 121. And a second bent portion 122 that is bent and extended in an extension direction of (). According to this structure, the supporter 100 of the embodiment of FIG. 4 (a) has a C shape and a shape similar to C as a whole.

According to this structure, while the pressing part 110 slightly wraps the inner part of the thumb of the medical worker, the first and second bent parts 121 and 122 of the bent part 120 may also naturally wrap the outer part of the thumb. It does not slip on the pressing part 110, etc., and provides the characteristic which aims at the forward and backward action of the plunger 20 more stably.

4B illustrates that the length of the second bent portion 122 is shorter than the length of the pressing portion 110 in the embodiment of FIG. 4A, and the embodiment of FIG. 4C. 4A illustrates that the length of the second bent portion 122 is longer than the length of the pressing portion 110 in the embodiment of FIG. 4A.

According to the embodiment of Figure 4 (b), it is possible to secure the free space on the outer portion of the thumb to freely ensure the thumb movement of the medical personnel while performing the forward and backward actions of the plunger 20 without any problem. .

In addition, according to the embodiment of Figure 4 (c), compared to the embodiment of Figure 4 (b) because the volume of the second bent portion 122 wraps around the outer portion of the thumb has increased the thumb in the supporter 100 There is an advantage that can perform the forward and backward action of the plunger 20 more stably without slipping or slipping.

In this way, while adjusting the length of the second bent portion (122) has a characteristic that allows the medical staff to operate the supporter 100 more conveniently.

In the embodiment according to FIG. 4D, a protruding part 123 protruding outward is formed at the boundary between the first and second bent parts 121 and 122, and correspondingly, the second bent part 122 is a pressing part. It takes a convex rounded elongation towards 110. At this time, the second bent portion 122 may be made of an elastic material.

When the second bent part 122 protrudes convexly rounded toward the pressing part 110, unlike the embodiment of FIG. 4A, the second bent part 122 naturally elastically compresses the outer portion of the thumb. When the thumb is moved for the forward and backward of the plunger 20, unnecessary space is generated between the thumb and pressing portion 110 and the bent portion 120, the thumb does not move well as intended by the medical practitioner or plunger 20 It is possible to prevent the problem that the operation is not easy.

As such, the second bent portion 122 is bent toward the outer portion of the thumb so that the protrusion part 123 protruding outward is further provided at the boundary of the first and second bent portions 121 and 122 to maintain elastic compression. When the second bent portion 122 is deformed, an appropriate stress is retained in the protruding part 123 so that the second bent portion 122 may have homeostasis capable of pressing the thumb outward.

In summary, according to the embodiment according to FIG. 4 (d), the natural space of the thumb may be ensured by minimizing the spaced space between the thumb in the supporter 100, and the second bent portion 122 may have the outside of the thumb. It has the property of providing a physical structure that can apply constant pressure on the site.

In the embodiment of FIG. 5A, the pressing portion 110 extends at a predetermined length in a direction perpendicular to the end of the plunger 20, and the bent portion 120 is provided at both sides of the pressing portion 110. The first bent part 124 extending in the opposite direction of) and the second bent part 125 connecting both ends of the first bent part 124, the overall shape of the supporter 100 is O-shaped or O Have a similar shape to.

According to this structure, the thumb can be naturally inserted into the supporter 100, and the supporter 100 can act as a kind of O-type ring to prevent the thumb from being easily detached during the operation of the plunger 20.

5 (b) is similar in structure to the embodiment of FIG. 4 (d), and protruding parts 126 protruding outward are formed at the boundary portions of the first and second bent parts 124 and 125. The two bent parts 125 have a convex rounded extension toward the pressing portion 110.

According to this, as in the embodiment of FIG. 4 (d), the second bending part 125 continuously presses the thumb to prevent the thumb and the separation space from occurring in the supporter 100. Furthermore, the second bent part 125 may have a structure in which the center portion is the thinnest along the rounded extending line without increasing the thickness, and increases in thickness from both ends thereof.

That is, the second bent part 125 is rounded outward of the thumb to provide unnecessary stimulation to this area when the center part of the thumb preferentially contacts the thumb, thereby preventing foreign body feeling or pain in the thumb of the medical worker. In other words, the thickness can be adjusted according to the shape of the outer portion of the thumb to provide a more natural and comfortable fit.

6 is a conceptual diagram illustrating an embodiment in which an elastic body is mounted on the supporter of the present invention.

First, the elastic body 140 of the present invention is based on being mounted on the embodiment of FIG. 5. Referring to the embodiment of FIG. 6 (a), the first bending part may be formed in a state in which the supporter 100 has an O shape. It can be seen that the inner surface of the 124 is provided with an elastic body 140 protruding convexly toward the central portion of the supporter 100.

The elastic body 140 provides a physical volume that reduces the space between the thumb in the supporter 100 and at the same time ensures the fluidity (elasticity) of the second bending part 125 while maintaining the elasticity of the second bending part 125. The second bending part 125 easily bends when the healthcare worker pushes the thumb out of the thumb side too easily, and thus does not function properly to reverse the plunger 20.

In other words, the elastic body 140 physically fills a portion of the inner side surface of the first bent part 124 to properly prevent the second bent part 125 from easily moving toward the thumb side or pointing to the thumb side, so that the second bent part 125 ) Provides a foundation to maintain the position without being easily bent when the plunger 20 is reversed.

In the embodiment of Figure 6 (b), the elastic body 140 is composed of a combination structure of the first and second structures (141, 142).

Specifically, the first elastic body 140 according to FIG. 6B has a first structure 141 having a first hollow 150 having a rectangular cross-sectional shape therein and a center portion of the supporter 100. The second hollow having an ellipse shape in which a long axis extends along an extension direction of the first bent part 124 in a state of being laminated on one side of the first structure 141 (upper surface of the first structure, based on the drawing). And a pipe-shaped second structure 142 with 170.

As can be seen from FIG. 6 (b), the first structure 141 has a rectangular cross-sectional shape. In addition, the first hollow 150 formed therein may also have a rectangular cross-sectional shape corresponding thereto, such a first hollow 150 is elastically smoothly flows while the first structure 141 is in contact with the thumb When the thumb frequently moves for manipulation / movement of the plunger 20 in the supporter 100, the thumb is positioned within a predetermined space to provide a function of preventing unnecessary movement of the syringe 1.

That is, the portion of the thumb that is substantially in contact with the thumb may be referred to as the second structure 142. The second structure 142 may be formed of an ellipse shape having a long axis along the extending direction of the first bent part 124. 1 It is attached to the outer end of the structure 141 or integrally formed, and can have both free fluidity and tear resistance at the same time.

In addition, the second structure 142 also has a hollow inside, that is, the second hollow 170 provides a property that can be quickly and elastically flow in response to the contact and agile movement of the thumb.

The embodiment according to FIG. 6 (c) is specialized in the embodiment of FIG. 6 (b), the cross section of the first hollow 150 being the lower side of the first hollow 150 of the first structure 141. A lower end portion 151 extending in parallel with the lower outer surface, a pair of inclined portions 152 extending inclined upwardly from both ends of the lower end portion 151, and upper ends of both inclined portions 152. It consists of an upper end 153.

At the same time, the cross section of the second hollow 170 may include a first rounding part 171 and a first rounding extending round to the virtual long axis at the same radius of curvature as the radius of curvature of the lower outer surface of the second structure 142. A pair of second rounding parts 172 extending from a curvature radius smaller than the curvature radius of the first rounding part 171 from both ends of the part 171 to a virtual short axis, respectively. At this point, a rounding protrusion 173 that slightly protrudes toward the first rounding part 171 is generated at a point where the pair of second rounding parts 172 meet each other.

The detailed structure of the first hollow 150 is formed such that the thickness of the first structure 141 gradually extends in the direction of the second structure 142, thereby supporting the support structure and the center of gravity function of the second structure 142. While reinforcing, the upper side, that is, the free movement of the upper portion of the second structure 142 is processed so that the elastic body can flow more agile in accordance with the contact with the thumb.

In addition, the detailed structure of the second hollow 170 is a peripheral portion of both sides in the long axis direction by inducing the upper side portion of the long axis to converge or dry to the short axis center when the second structure 142 elastically flows in contact with the thumb. This is to prevent the problem of easy tearing or cracking. In other words, the radius of curvature of the upper and lower sides of the long axis is treated differently so that the upper side of the long axis, which tends to be torn or deform relatively, can flow to the short axis while ensuring the structural stability of the lower side of the long axis. It can be understood that it is to prevent the problem that the tear is generated while being severely oriented to one side.

According to the unique structure of the first and second hollows 150 and 170, and further, the first and second hollows 150 and 170, the elastic body 140 may be agile and elastically flow in contact with the thumb upon opening and closing. Grant.

As described so far, the configuration and operation of the syringe assisting the reversal of the plunger according to the present invention have been expressed in the above description and the drawings, which are merely examples, and the spirit of the present invention is not limited to the above description and the drawings. Of course, various changes and modifications are possible without departing from the technical spirit of the present invention.

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1: syringe 10: cylinder
11: needle 12: pedestal
13: auxiliary supporter 20: plunger
21: packing 100: supporter
110: pressing portion 120: bending portion
121: first bent portion 122: second bent portion
123, 126: protrusion part 124: first bending part
125: second bending part 130: friction pad
140: elastic body 141: first structure
142: second structure 150: first hollow
151: lower portion 152: inclined portion
153: upper portion 170: second hollow
171: first rounding part 172: second rounding part
173: stone

Claims (14)

A syringe that assists retraction of the plunger,
A hollow structure in which a needle is mounted at one end and a pedestal is mounted along the circumference of the other end;
A plunger slidably moving forward and backward in the hollow of the cylinder;
A supporter mounted on an end of the plunger, the supporter having a pressing portion formed in a predetermined volume so as to contact the thumb to press the plunger, and a bent portion that is bent to wrap a portion of the thumb at one end of the pressing portion. ,
The pressing portion,
Extends to a length in a direction perpendicular to the end of the plunger,
The bent portion,
A first bending part extending in opposite directions of the plunger on both sides of the pressing part, and a second bending part connecting both ends of the first bending part,
The overall shape of the supporter has an O shape or a shape similar to O,
On each of the inner surfaces of the first bent part,
And an elastic body protruding convexly toward the central portion of the supporter is further attached. The method of claim 1,
The cylinder is,
And an auxiliary supporter protruding outward along a circumference of one side of the cylinder. delete The method of claim 1,
The pressing portion,
Extends a certain length in a direction perpendicular to the end of the plunger,
The bent portion,
And extending at least one end of the pressing portion. delete delete delete delete The method of claim 1,
At the boundary of the first and second bent parts,
A protruding part protruding outward is formed,
The second bending part,
A convex rounded extension toward said pressing portion, said thickness being increased at both ends at a central portion along said rounded extended line; delete The method of claim 1,
The elastic body,
A first structure having a first hollow having a rectangular cross-sectional shape therein,
Laminated on one side of the first structure to face the central portion of the supporter, a second pipe-shaped structure having a second hollow of the elliptical shape extending in the longitudinal direction along the extending direction of the first bent part A syringe, characterized in that consisting of. The method of claim 11,
The cross section of the first hollow,
A lower end extended in parallel with the lower outer surface of the first structure, a pair of inclined portions extending inclined upwardly from both ends of the lower end, and an upper end connecting both upper ends of the inclined portions,
The cross section of the second hollow,
A first rounding portion extending round to the major axis with a radius of curvature equal to the radius of curvature of the lower outer surface of the second structure, and a radius of curvature smaller than the radius of curvature of the first rounding portion from both ends to the short axis, respectively; A syringe comprising: a pair of second rounding portions. delete delete

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