WO2012020957A2

WO2012020957A2 - Syringe that is operable by one-hand

Info

Publication number: WO2012020957A2
Application number: PCT/KR2011/005775
Authority: WO
Inventors: 조중범
Original assignee: Cho Joongbum
Priority date: 2010-08-13
Filing date: 2011-08-09
Publication date: 2012-02-16
Also published as: KR20120015829A; WO2012020957A3

Abstract

The present invention relates to a syringe which enables blood collection and drug suction or injection to be performed by one hand of a user. The syringe of the present invention comprises: a cylinder having a needle at the front end thereof, and a tap perpendicularly extending from the rear end thereof; a plunger having a piston fixed at the front end thereof, and a piston head fixed at the rear end thereof, wherein the piston is inserted into the cylinder so as to tightly contact an inner surface of the cylinder and reciprocate in the tightly contacted state, wherein the cylinder has a groove formed at the outer surface thereof in the lengthwise direction of the cylinder; and an operating rod which extends in the lengthwise direction of the cylinder from the piston head and which is inserted into the groove such that the upper surface of the operating rod can be outwardly exposed, wherein the operating rod has a finger-holding portion formed at the exposed upper surface of the operating rod such that the finger of the user does not slip. The finger-holding portion consists of a plurality of anti-slip protrusions formed on the upper portion of the operating rod in the lengthwise direction of the operating rod, or consists of toothed or waved anti-slip embossments formed on the upper surface of the operating rod or of an anti-slip pad made of a rubber or silicone material and attached to the upper surface of the operating rod.

Description

One handed syringe

The present invention relates to a syringe, and more particularly, to a syringe and a syringe aid for allowing a single hand to inhale or inject a blood sample and a drug accurately and stably.

Syringes are generally used to collect blood from a patient or to inject a drug into a patient. When a blood sample is drawn, one hand holds a part of the patient's body, such as an arm, and the other hand holds a syringe. After inserting into the blood vessel of the patient, while holding the cylinder of the syringe again with the hand holding the patient's arm, etc. while the other hand reverses the piston to collect blood.

In the case of such conventional syringes, the needle or syringe may be easily shaken during blood collection by inserting the needle into the patient's blood vessel and then moving the hand to collect the blood. The patient may be afflicted with a problem such as a needle in which the needle is twisted or detached from the inserted blood vessel. In addition, for example, if there is a need to hold a part of the patient's body that is being collected by the other hand, which does not hold the syringe, such as a child, or when the other hand is contaminated and touches the sterilized syringe, germs may be transmitted. In some cases, such as when one hand is used as an indicator for inserting a needle and blood is drawn at the same time as the insertion of a needle, a medical syringe may need to use one hand for another purpose. In this case, since both hands are required to collect blood from the blood vessels of the patient as described above, there is a problem that it may be impossible to properly perform the required medical treatment.

In order to alleviate the above-mentioned problems, a syringe that allows blood collection or inhalation of drugs with one hand is shown in FIG. 1. In the case of the syringe shown in FIG. 1, after inserting the injection needle 11 into the blood vessel of the patient, using the index finger and the middle finger, pulling the handle bar 17 along the guide slit 12 to the rear side, the piston 13 The blood may be collected through the injection needle 11 inserted into the blood vessel while retreating along the inner circumferential surface of the cylinder 10, so that it is not necessary to move the hand for blood collection like a conventional syringe. Therefore, there is an advantage that blood collection is possible with one hand. However, in the case of the above-described syringe, since it can be used only for blood collection, there is a limitation in use that a drug or the like cannot be injected into a blood vessel.

In order to alleviate the above-described problem of the syringe shown in FIG. 1, a dual syringe that allows both blood collection and inhalation or injection of drugs is shown in FIG. 2. In the case of the combined syringe, a pair of guide slits 22 which are symmetrical to each other on the rear side of the cylinder 10, and a pair of symmetrical leading to the connecting rod 24 on the rear end side of the cylinder rod 25 The handle bar 27 is integrally formed to protrude outward of the guide slit 22. This combined syringe collects blood or drugs by pulling the handle bar 27 formed integrally with the cylinder rod 25 with the index finger and the middle finger to move the piston 13 back, and the guide rod 28-28 is connected to the connecting rod 24. It is configured to inject the drug by pressing the injection pressing plate 26 with the thumb to advance the piston while supporting the index finger and the middle finger in the fixed cap 28 assembled through 1). In the case of the above-mentioned combined syringe, there is an advantage that both blood collection and inhalation or injection of the drug can be performed with one hand. However, in view of the fact that a syringe is a disposable consumable in general, the combined syringe has a disadvantage in that its structure is complicated and its manufacturing cost is too high, making it unsuitable as a disposable consumable syringe.

In addition, in the case of the conventional syringes shown in FIGS. 1 and 2 described above, when the length is the same as that of a general syringe, since the maximum volume of blood or drug that can be structurally collected is only about half of a general syringe, Due to the limitation of capacity, there is a problem in that the use is restricted. In order to be able to collect the same volume of blood and drugs as a normal syringe, the length of the drug must be about twice as long. In this case, too long length makes it difficult to precisely control and stably use the syringe. there is a problem.

On the other hand, in order to minimize the pain of the patient during blood collection or injecting the drug into the blood vessel, as shown in Figure 3, the cylinder of the syringe stably with a stop, cotton paper, ring finger and thumb to minimize the shaking of the syringe And precise targeting is required to ensure that the needle can be inserted exactly at the desired position in the blood vessel at one time. This is accomplished by holding the index finger close to the front of the cylinder adjacent to the needle as accurately as possible. Allow insertion to take place. In addition, in the case of a syringe which allows blood to be collected by one hand, the piston is retracted immediately without changing the position of the hand (finger), in particular while the needle is inserted into the blood vessel by the operation described above. It is important that blood is drawn.

However, in the conventional syringes shown in FIGS. 1 and 2 described above, when inserting an injection needle into a blood vessel, the thumb is in close contact with the rear side of the cap 18 or the fixed cap 28, and the index finger and the middle finger In order to aim the injection needle in the gripped state of the handle bars (17, 27), there is a disadvantage that accurate and precise aiming as shown in FIG. If the conventional syringes are held in the manner as shown in FIG. 3 and the needle is inserted into the blood vessel, the thumb may be placed on the rear side of the cap 18 or the fixed cap 28 as described above for blood collection. It is necessary to change the position of the hand (finger) to make close contact and to grasp the

handle bars

17 and 27 with the index finger and the middle finger, but in order to stabilize the process, the use of both hands is inevitably required. It is not possible to achieve the intended purpose of making it possible to use it, and if the position of the hand (finger) is forcibly changed without the help of the other hand, the needle or syringe may easily shake, thereby causing The patient may be afflicted by a problem such as the inserted needle is twisted or detached from the inserted blood vessel.

The present invention is to solve the problems of the syringe according to the prior art as described above, it is easy to manufacture because the structure is simple, it is possible to elaborate and stable with one hand, and to inhale or inject the drug both to inhale or inject Its purpose is to provide.

A syringe according to one aspect of the present invention, which allows inhalation or infusion of blood and drugs by one hand to achieve the above object, is a cylindrical cylinder having a needle fixed at a front end and a tab extending at a right angle at a rear end thereof. A piston and a piston which are inserted into the cylinder and are in close contact with the inner circumferential surface of the cylinder are fixed to the front end, and a piston head is provided at the rear end, and a groove formed on the outer circumferential surface of the cylinder in the longitudinal direction of the cylinder. An actuating rod extending from the head in the longitudinal direction of the cylinder and inserted into the groove to expose the upper portion to the outside, and having a finger gripping portion formed on the exposed outer surface to allow the finger not to glide; The gripping portion actuates the upper surface of the actuating rod. Sliding formed of rubber or silicone material composed of a plurality of non-slip protrusions formed along the longitudinal direction of the rod or formed of teeth or wavy anti-slip irregularities formed on the upper surface of the actuating rod or attached to the upper surface of the actuating rod It may be configured as a prevention pad.

A capacity display protrusion protruding from the lower end of the guide rail may be further provided, and the guide groove may be provided with a plurality of notches in which the capacity display protrusion is accommodated.

A guide rail protruding along the longitudinal direction of the operating rod may be further provided at the lower end of the operating rod, and the groove may be provided with a guide groove into which the guide rail is inserted. In addition, the cross section of the guide rail may have a lower portion in a '⊥' shape, and the guide groove is formed to correspond thereto.

A second groove and a second operation rod corresponding to the groove and the operation rod may be further provided at a position facing the groove and the operation rod so as to be paired with the groove and the operation rod.

A syringe according to another aspect of the present invention, which allows blood collection and inhalation or infusion of a drug with one hand, is inserted into the cylindrical cylinder having a needle fixed at the front end and a tab extending at a right angle at the rear end thereof. A piston reciprocating linearly in a state of being in close contact with the inner circumferential surface of the cylinder is fixed to the front end, and a plunger having a piston head at the rear end thereof extends in the longitudinal direction of the cylinder from the piston head and the lower surface is in close contact with the outer circumferential surface of the cylinder. And an operating rod having a finger gripping portion formed thereon so that a finger does not slip on the upper surface, wherein the finger gripping portion is formed of a plurality of non-slip protrusions formed along the longitudinal direction of the operating rod on the upper surface of the operating rod. Or saws formed on top of the actuating rod Or it may be of a non-slip uneven wavy or consist of non-skid pad formed of a rubber or silicone material attached to the upper surface of the operating rod.

A cylindrical cylinder having a needle fixed at the front end, a tab extending at a right angle at the rear end, and a piston inserted in the cylinder and linearly reciprocating in close contact with the inner circumferential surface of the cylinder are fixed at the front end, The syringe aid according to the present invention, which is inserted into a syringe composed of a plunger provided with a piston head, allows blood collection and inhalation or injection of drugs with one hand, and has a slit-formed piston head that allows the piston head to be detachably inserted and fixed. And an actuating rod extending from the upper end of the top and the piston head fixing part in the longitudinal direction of the cylinder to be in close contact with the outer circumferential surface of the cylinder, and having a finger gripping portion formed thereon to allow the finger to be gripped without slipping. The finger grip is operated Rubber consisting of a plurality of anti-slip protrusions formed along the longitudinal direction of the actuating rod on the upper surface of the rod or formed of teeth or wavy anti-slip irregularities formed on the upper surface of the actuating rod or attached to the upper surface of the actuating rod Or it may be composed of a non-slip pad formed of a silicon material.

Although the syringe according to the present invention is a syringe which allows one hand to inhale or inject blood, the structure thereof is relatively simple compared to the syringes according to the prior art described with reference to FIGS. 1 and 2. It is more suitable for syringes that are disposable consumables by eliminating the problems of the structural complexity and the high manufacturing cost of conventional syringes, and the structural problems of the conventional syringes, namely the maximum amount of blood or drug that can be collected, are common. Eliminates the difficulty of precise control and stable use of syringes due to the constraint that it is only about half of the syringe or has the structure of about twice as long as the general syringe to allow the collection of blood or drugs of the same capacity. There is an advantage to this.

In addition, even in use, the syringe according to the present invention stably grips the cylinder 10 of the syringe with a stop, cotton paper, ring finger and thumb to minimize shaking of the syringe as shown in FIG. Finger gripping portion of the actuating rod 26 located in front of the cylinder 10 as close as possible to the injection needle 11 for precise aiming to ensure that 11) can be correctly inserted into the desired position of the vessel at once, That is, the non-slip projections 27 are gripped by the index finger, so that accurate aiming and insertion as shown in FIG. 3 can be made, and in such an inserted state, there is no need to change the position of the hand (finger). When the piston 23 is retracted by pressing the non-slip protrusions 27 with the index finger and pulling the operation rod 26 backward, as shown in FIG. 8. In other words, since the blood pressure can be formed by forming a negative pressure inside the cylinder 10, there is an advantage that more stable blood collection is possible without shaking.

In addition, at least one projection formed at the lower end of the actuating rod 26 or at least one projection for maintaining a negative pressure and a predetermined position of the groove 16, for example, each position corresponding to 2cc, 3cc, 5cc, 7cc, 10cc, etc. A plurality of notches formed in the projections allow for easier and accurate collection of blood or drugs corresponding to a specific desired dose, and also for tissue biopsy and treatment from breast, thyroid, liver, and skin tissues. When used to collect or to collect liquids for amniotic puncture, articular cap puncture, etc., it maintains a constant sound pressure from a low sound pressure to a high sound pressure inside the cylinder, while maintaining a constant sound pressure in such a state, for example, For example, to move the cells better, the needle should be moved forward or backward, or rotated about 3 cm. There may be a case where there is a need, through the above-described projections and a plurality of notches corresponding thereto, it is possible to more easily and stably maintain the required constant sound pressure, and as described above in the state of maintaining the constant sound pressure as described above. There is an advantage that it is possible to easily perform the required operation, that is, the operation such as moving forward or backward or turn the position of the injection needle about 3cm.

On the other hand, the syringe aid 40 according to the present invention does not apply any modification to the general syringe, but simply inserted as shown in Figure 13, so that it can be used in the same manner as the above-described syringe, blood collection even with a general syringe And inhalation or infusion of the drug with one hand.

1 is a perspective view of a conventional blood collection syringe of FIG.

2 is a perspective view of a conventional syringe allowing both blood collection and drug injection.

3 is a view showing an exemplary gripping state of the syringe according to the medical manual.

4 is an exploded perspective view of a syringe according to an embodiment of the present invention.

FIG. 5 is a combined perspective view of the syringe shown in FIG. 4. FIG.

6 is a cross-sectional view taken along line II of FIG. 5.

7 is a view showing the gripping state of the syringe shown in FIG. 5 for inserting an injection needle into a blood vessel of a patient.

FIG. 8 is a procedure of blood collection of the syringe shown in FIG. 5.

9 is a view showing a gripping state of another method of the syringe shown in FIG.

10 is an exploded perspective view of a syringe according to another embodiment of the present invention.

11 is an exploded perspective view of a syringe according to another embodiment of the present invention.

12 is a perspective view of a syringe aid in accordance with the present invention.

Figure 13 is a perspective view of the syringe aid according to the present invention coupled to the syringe.

The syringe according to the present invention, which allows inhalation or infusion of the blood and the drug with one hand, is a basic component, as shown in FIGS. 4 to 6, and the injection needle 11 is fixed at the front end and at the rear end. A cylindrical cylinder 10 having a tab 12 extending at right angles and a piston 23 inserted into the cylinder 10 and linearly reciprocating in close contact with the inner circumferential surface of the cylinder 10 are fixed to the front end. And a plunger 24 provided with a piston head 25 at its rear end.

A major feature of the present invention is an actuating rod 26 configured to allow for the collection of blood or drugs with one hand, while being sophisticated and easy and stable. The actuating rod 26 extends along the longitudinal direction of the cylinder 10 from the piston head 25, and a groove 16 formed along the longitudinal direction of the cylinder 10 on the outer circumferential surface of the cylinder 10. It is inserted so that the upper portion is exposed to the outside, the finger gripping portion is formed so that the finger can be gripped so as not to slide on the exposed outer surface.

The finger gripping portion may be composed of a plurality of non-slip protrusions 27 formed along the longitudinal direction of the actuating rod 26 on the upper surface of the actuating rod 26. The non-slip projections 27 need not be formed over the entire range of the actuating rods 26, but are sufficient if provided in the front and back portions of the actuating rods 26. That is, as shown in FIGS. 5 and 7, the plunger 24 integrally with the actuating rod 26 is retracted backward by the pressing and pulling action of the index finger applied to the actuating rod 26. By forming a negative pressure inside the cylinder 10 so that blood or drugs can be collected, the index finger can be gripped so as not to slip and at the same time the push rod and the pulling action can be smoothly performed. While formed in plural in the front portion of 26, as shown in Figs. 5 and 9, the plunger 24 which is integral with the actuating rod 26 by the pressing and pushing action of the thumb is rearward. The thumb and the thumb can be gripped so as to retreat to collect blood or drugs, and at the same time, the above push and push operations can be performed smoothly. It is sufficient if a plurality of locks are formed on the rear portion of the actuating rod 26.

In one variation, the finger holding portion may be composed of a sawtooth or wavy anti-slip irregularities (not shown) formed on the upper surface of the operation rod 26, the operation is similar to the anti-slip projections 27 described above It does not need to be formed over the entire range of the rods 26, but is sufficient if provided in the front and rear portions of the actuating rod 26.

As another modification, the finger grip portion may be composed of a non-slip pad (not shown) formed of a rubber or silicone material attached to the upper surface of the actuating rod 26.

The various types of finger gripping portions described above prevent sliding of the index finger or thumb, and a force exerted upon the pressing and pulling action by the index finger or the pressing and pushing action by the thumb is applied to the actuating rod 26. In this case, the plunger 24 integral with the working rod 26 is retracted smoothly to the rear so that blood or drug can be collected.

On the other hand, a lubricant may be applied to the surfaces of the groove 16 and the operating rod 26 in contact with each other. This makes it easy to pull back the operation rod 26 with the index finger or push it with the thumb with less force, so that the plunger 24 integral with the operation rod 26 is retracted smoothly without shaking. This ensures a stable collection of blood or drugs.

On the other hand, the longitudinal direction of the operating rod 26 on the lower end of the operating rod 26 to guide and guide the movement of the operating rod 26 to be moved along the longitudinal direction of the cylinder 10 more stably. A guide rail 28 protruding along may be further provided, and the groove 16 may be further provided with a guide groove 18 into which the guide rail 28 is inserted. Furthermore, the actuating rod 26 prevents the actuating rod 26 from deviating from the groove 16 of the cylinder 10, and the actuating rod 26 causes the groove 16 to be driven even when an external force is applied to the actuating rod 26. The cross section of the guide rail 28 is not shown in the drawing, but may be formed to have a wide bottom in an approximately '⊥' shape so that the guide rail 28 may be stably fixed to be movable in the case, in which case the guide groove 18 Likewise, it is formed in a '⊥' shape. The cross-sectional shape of the guide rail 28 for the above-mentioned purposes is not necessarily limited to a '⊥' shape, and may have any other shape as long as it can perform the same function.

The syringe according to the present invention having the structure as described above basically forms a groove 16 on the outer surface of the cylinder 10 and compares an actuating rod 26 inserted into the groove 16 when compared to a general syringe. Since only a simple deformation of the integrally formed to extend from the piston head 25 of the plunger 24 is applied, the structural complexity of the syringe according to the prior art described with reference to Figs. The problem of manufacturing cost can be solved. In addition, the above-described structural problems of the syringes according to the related art, that is, the maximum amount of blood or drug that can be collected is only about half of the general syringe, or the same amount of blood or drug can be collected In order to solve this problem, it is possible to solve the problem that the precise control and stable use of the syringe are difficult due to the constraint of having a long structure of about twice or more.

On the other hand, even in use, the syringe according to the present invention stably grips the cylinder 10 of the syringe with a stop, cotton paper, ring finger and thumb to minimize shaking of the syringe as shown in FIG. The finger of the actuating rod 26 located in front of the cylinder 10 as close as possible to the injection needle 11 for precise targeting to ensure that 11) can be correctly inserted into the desired position of the vessel at once. The gripping portion, i.e., the non-slip projections 27, is gripped with the index finger to allow accurate aiming and insertion as shown in FIG. After inserting the injection needle 11 into the blood vessel, the cylinder 10 is pressed in close contact with the arm of the patient as shown in FIG. 3 so that the syringe does not shake or change its position. Without changing the position of the finger), as shown in FIG. 8, the piston 23 is retracted by pressing the non-slip protrusions 27 with the index finger and pulling the operation rod 26 backward. A negative pressure is formed inside the cylinder 10 to collect blood. As described above, the syringe according to the present invention can be stably collected without shaking by retracting the piston 23 without precisely aiming, inserting and changing the position of the hand (finger) in the state. A series of procedures in use is particularly important for syringes that allow for one-hand blood collection. The foregoing are distinctive features unique to the present invention that can never be achieved by syringes according to the prior art described above.

On the other hand, unlike shown in Figure 7, the four fingers except the thumb grip the cylinder 10 of the syringe, the thumb grips the anti-slip projections 27 provided in the front of the operating rod 26 with a thumb. After pressing, the working rod 26 may be pulled backwards to collect blood or drugs.

On the other hand, as shown in Figure 9, the syringe upside down, gripping the cylinder 10 of the syringe with four fingers except the thumb, and the non-slip projections provided in the rear portion of the operating rod 26 with the thumb. After grasping and pressing the 27, the working rod 26 may be pushed up to collect blood or drugs. This can be said to be more suitable than if the drug is mainly taken from a vial.

Although not shown in the drawings, at least one protrusion (not shown) is further provided at the lower end of the guide rail 28 to maintain the capacity or maintain the negative pressure, and the protrusion is accommodated in the guide groove 18. A plurality of notches (not shown) may be further provided.

First, the projections and the plurality of notches that can be used for dose indication will be described. In general, a blood volume of a predetermined dose at the time of blood collection, for example, 2 to 5 cc for an infant and 5 to 10 cc for an adult, is described. This is mainly taken, and even if the drug is taken from the bottle there is a fixed dose mainly taken depending on the age or progress of the disease. Although there is a scale indicating the dose in the cylinder 10, the dose indication protrusion and the notch corresponding thereto make it easier and accurate to collect blood or drugs corresponding to the desired dose. That is, the capacity display projections are formed at the lowermost front end of the guide rail 28, and at each position corresponding to a predetermined position of the guide groove 18, for example, 2cc, 3cc, 5cc, 7cc, 10cc, and the like. By forming a notch in which the dose indication protrusion is accommodated, the dose indication protrusion is sequentially inserted into each of the notches in the process of pulling the actuating rod 26 with the index finger, thereby achieving a desired specific dose. It is easy to identify and, therefore, makes it easier and more accurate to collect the desired dose of blood or drug.

Next, with reference to the projections and the plurality of notches that can be used for negative pressure maintenance, the syringe according to the present invention is to take a tissue sample from the breast, thyroid gland, liver, skin, or the like for biopsy and treatment It can also be used to collect liquids for punctures, articular capsule punctures, and the like. In use for the above-mentioned uses, more precise aiming is required, in particular for the collection of the required tissue, which can be achieved by the accuracy and ease of aiming the syringe according to the invention as described above. In addition, in the case of use for the above-described use, there may be cases where it is necessary to maintain a constant sound pressure from a low sound pressure to a high sound pressure in the cylinder in some cases. For example, it may be necessary to perform an operation such as forwarding, retracting or turning the needle position about 3 cm in order for the cell to come out better. These points can be solved through the above-described protrusion and the corresponding plurality of notches. That is, when the piston 23 is retracted by pulling the operating rod 26 with the index finger, a negative pressure is formed inside the cylinder 10 so that tissue or liquid flows into the piston 23, and the detection continues. Pulling the operation rod 26 with a finger, the negative pressure holding projection is inserted into the notch formed at a predetermined position of the guide groove 18, so that the operation rod 26 is applied to the operation rod 26 for maintaining a constant sound pressure. Even if the index finger force that needs to be applied is released slightly, it is possible to maintain such a constant sound pressure more easily and stably, and maintain the required sound pressure as described above, that is, the position of the needle. It is possible to easily perform an operation such as moving forward or backward or turning about 3 cm.

On the other hand, in the case of injecting the drug into the blood vessel or body of the patient by using the syringe according to the present invention, the index finger and the middle finger is gripped on the tab 12 of the cylinder 10, and the thumb The finger presses the piston head 25 of the plunger 24 to inject the drug.

Meanwhile, as a modification of the syringe according to the above-described embodiments, as shown in FIG. 10, the groove 16 and the actuating rod are paired with the groove 16 and the actuating rod 26. A second groove 16 'and a second actuating rod 26' corresponding to (26) may be further provided at the opposite positions facing the groove 16 and the actuating rod 26, respectively.

On the other hand, Figure 11 shows another variant of the syringe according to the present invention. This variant differs from the syringe shown in FIGS. 4 to 6, omitting the grooves 16 formed on the outer circumferential surface of the cylinder 10 to allow the actuation rod 26 to be inserted, and at the same time By omitting the guide rail 28 formed at the bottom, the structure of the syringe shown in FIGS. 4 to 6 is further simplified. The working rod 26 in this modification is rounded so that its lower surface can be in close contact with the outer circumferential surface of the cylinder 10, and the lower surface which is in contact with the outer circumferential surface of the cylinder 10 may be coated with lubricant. . Since the configuration of the finger grip portion formed on the upper surface of the operation rod 26 or other syringes are used in the same manner as the above-described embodiments, the finger may be gripped without slipping, and thus a detailed description thereof will be omitted.

12 and 13 show a syringe aid 40 according to the present invention. The syringe aid 40 is detachably fitted to a general syringe to allow blood collection and inhalation or injection of a drug with one hand as in the syringe according to the embodiments described above, and the piston head fixing part 30 and operation A rod 26.

The piston head fixing part 30 is a part for allowing the piston head 25 of the syringe to be detachably inserted and fixed, and the slits 35 into which the piston head 25 is inserted are formed to be connected therebetween. Consists of a first disk 33 and a second disk 36, the first disk 33 is further provided with a groove 34 for inserting the plunger 24.

The actuating rod 26 extends from the upper end of the piston head fixing part 30 in the longitudinal direction of the cylinder 10 so that the lower surface thereof is in close contact with the outer circumferential surface of the cylinder 10, and the upper surface of the operating rod 26 grips the finger without slipping. A finger gripping portion is formed to allow. The working rod 26 may be formed of a metallic material. The working rod 26 is rounded so that its lower surface may be in close contact with the outer circumferential surface of the cylinder 10, and a lower surface of the operating rod 26 may be coated with a lubricant. Since the configuration of the finger holding portion formed on the upper surface of the operation rod 26 so that the finger can be gripped without slipping is the same as in the case of the syringe according to the above-described embodiments, a detailed description thereof will be omitted.

The syringe aid 40 does not modify the normal syringe at all, and is simply inserted as shown in FIG. 13 to be used in the same manner as the syringe according to the above-described embodiments, thereby collecting blood even with the general syringe. And inhalation or infusion of the drug with one hand.

Explanation of the sign

10 cylinder 11: injection needle

12: Tab 16: Groove

16 ': 2nd groove 18: guide groove

23: piston 24: plunger

25: piston head 26: operating rod

26 ': second operating rod 27: anti-slip protrusion

28: guide rail 33: first disc

34: groove 35: slit

36: second disk 40: syringe aid

Claims

Cylindrical cylinder with fixed injection needle in the front and tabs extending at right angles to the rear

A plunger inserted into the cylinder and fixed to the front end of the piston for linear reciprocating motion in close contact with the inner circumferential surface of the cylinder, and having a piston head at the rear end thereof.

Grooves formed on the outer circumferential surface of the cylinder in the longitudinal direction of the cylinder and

It includes an operating rod extending from the piston head in the longitudinal direction of the cylinder is inserted into the groove so that the upper portion is exposed to the outside, the finger holding portion is formed on the exposed outer surface so that the finger can be gripped without slipping,

The finger holding part is composed of a plurality of non-slip projections formed along the longitudinal direction of the actuating rod on the upper surface of the actuating rod, or composed of teeth or wavy anti-slip irregularities formed on the actuating rod upper surface or the actuating rod A syringe capable of inhaling or injecting a blood sample and a drug, comprising a non-slip pad formed of a rubber or silicone material attached to an upper surface of the syringe.
The method of claim 1,

At the lower end of the working rod is provided with at least one projection for capacity indication or negative pressure maintenance, the groove is provided with a plurality of notches in which the projection is accommodated inhalation or injection of the drug Possible syringe with hand.
The method according to claim 1 or 2,

The guide rail protruding along the longitudinal direction of the operating rod is further provided at the lower end of the operating rod, and the groove is further provided with a guide groove into which the guide rail is inserted. Possible syringe with one hand.
The method of claim 3,

The cross section of the guide rail is a '⊥' shape, characterized in that the lower portion is a syringe capable of inhalation or injection of blood and drug.
The method of claim 3,

And a second groove and a second operation rod corresponding to the groove and the operation rod, respectively, are provided in a position facing the groove and the operation rod so as to be paired with the groove and the operation rod. Syringe with one hand for blood collection and inhalation or infusion of drugs.
Cylindrical cylinder with fixed injection needle in the front and tabs extending at right angles to the rear

A plunger inserted into the cylinder and linearly reciprocating in a state of being in close contact with the inner circumferential surface of the cylinder, fixed at the front end, and having a piston head at the rear end thereof;

It includes an operating rod extending from the piston head in the longitudinal direction of the cylinder is in close contact with the outer circumferential surface of the cylinder, the finger holding portion is formed on the upper surface to be gripped so that the finger does not slip,

The finger holding part is composed of a plurality of non-slip projections formed along the longitudinal direction of the actuating rod on the upper surface of the actuating rod, or composed of teeth or wavy anti-slip irregularities formed on the actuating rod upper surface or the actuating rod A syringe capable of inhaling or injecting a blood sample and a drug, comprising a non-slip pad formed of a rubber or silicone material attached to an upper surface of the syringe.
A cylindrical cylinder having a needle fixed at the front end, a tab extending at a right angle at the rear end, and a piston inserted in the cylinder and linearly reciprocating in close contact with the inner circumferential surface of the cylinder are fixed at the front end, In the syringe aid which is inserted into the syringe consisting of a plunger provided with a piston head, blood collection and inhalation or injection of the drug is possible with one hand.

A piston head fixing part in which a slit is formed so that the piston head is detachably fitted and fixed;

It includes an operation rod extending from the upper end of the piston head fixing portion in the longitudinal direction of the cylinder is in close contact with the outer peripheral surface of the cylinder, the finger gripping portion is formed to allow the finger to be gripped on the upper surface,

The finger holding part is composed of a plurality of non-slip projections formed along the longitudinal direction of the actuating rod on the upper surface of the actuating rod, or composed of teeth or wavy anti-slip irregularities formed on the actuating rod upper surface or the actuating rod Syringe assisting device comprising a non-slip pad formed of a rubber or silicone material attached to the upper surface of the.