KR101699757B1 - Assebled needle set for injecting a medicinal fluid - Google Patents

Abstract

The present invention relates to an integrated medical liquid supply needle set characterized in that a medicinal solution can be supplied into a blood vessel by a single injection without replacement of a needle to be injected into a call, A flexible tube body inserted into the blood vessel and having an invasion hole formed in a side surface thereof and having a tube tip portion for ejecting the drug solution into the invasion hole or the distal end; And a needle of a rigid material which is scanned by the invasion hole to guide the tube distal end portion into a blood vessel and then drawn out.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a needle-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a needle set for supplying a chemical liquid, which is capable of injecting a chemical liquid into a blood vessel only by withdrawing a needle after a call and a needle are inserted together.

Typically, the vast majority of patients who are hospitalized for illness, accidents, or the like are subjected to Ringer's injection for nutritional support during treatment or recovery. The ringer needle should be invaded in the vein for a long time until all the drug solution or liquid carried in the ringer bottle is administered. Depending on the situation, the once injected Ringer needle may have been invaded in the blood vessel for 5 to 7 days after the Ringer bottle has been replaced in an invasive state.

The Ringer's injection is characterized by prolonged invasion, and the needle should be fixed with the vein inserted into the vein and the patient's behavior should be possible. Accordingly, unlike a general one-time invasion injection method, a needle is inserted into a blood vessel while a metal needle is advanced, a metal needle is pulled out, and then a flexible resin tube is connected to the ringer. In other words, a metallic needle is applied to the blood vessel to remove it after being infiltrated to guide the tube. As a result, only the flexible flexible resin tube is inserted into the blood vessel to supply the ringer, so that the patient can somewhat act on the injected site.

Korean Patent Registration No. 10-0780407 discloses a liquid supply device having a reversible disposable blood vessel needle and a syringe portion in the prior art. 1 shows a fluid supply device according to the prior patent. 1, the liquid supply device according to the prior patent is characterized in that a liquid supply line 2 for blood and liquid injection is connected to a container 1 in which liquid or blood is contained, and in the middle of the liquid supply line 2 A fluid supply device (100) provided with a fluid control device (3) for controlling the fluid supply amount and provided with a reversible disposable blood pressure monitor needle (10) for injecting blood or a fluid into the blood vessel at the tip of the fluid supply rod The reversible disposable vascular system needle 10 has a cylindrical outer cylinder 20 in which a hollow is hollow and a inner cylinder piston 30 which is inserted into the outer cylinder 20, And a liquid supply line 2 provided with a convex portion 50 having a syringe function in the liquid supply line.

As can be seen from the foregoing patent, a chemical-liquid supplying needle such as a ringer is provided with a structure in which a needle is inserted into a call. Referring to Fig. 1 of the prior patent, the outer cylinder 20 is shouted, and the inner cylinder piston 30 is to be declined. In this case, the conventional needle including the prior patent is scanned together with the call and the needle, and the process of connecting the call with the ringer tube after removing the needle is necessarily required. 1, the inner cylinder piston 30 is separated from the outer cylinder 20, and then the outer cylinder 20 is connected to the liquid supply connection portion 4 Is required.

From the patient's point of view, the above-mentioned replacement process is performed in a state where the inserted call is not fixed. In other words, the doctor or the nurse invades the blood vessel together with the crying, and then removes the crying. At this time, the crying tube is connected together with the crying tube in a state where the crying is fixed with only one hand. The above injection procedure can cause considerable pain to the patient. If the call is moved during the cryosurging procedure after the cryosurgery is removed, even if the cry is a flexible tube, the cryosurgery needle is shaken in the blood vessel, which causes considerable pain to the patient.

In the state where the call needle is inserted into the blood vessel, the need for a needle or a ringer tube for supplying a chemical solution and an additional fastening process are present as well as the risk of damaging the patient's blood vessels. A less skilled medical practitioner often fails to secure the call during the procedure of crying and the ringer needle and often causes the needle of the call to puncture the blood vessel due to the pressing force at the time of fastening. In this case, the patient who receives the Ringer injection is supplied with the drug solution to the outside of the blood vessel, and the injected body part is swollen or bruised.

In addition, all of the above-described injection procedures are performed by a person, and there is a risk of infection during withdrawal of the needle withdrawal and replacement of the ring needle, and there is a possibility that air bubbles may enter. In addition, a fastening structure having a predetermined diameter or having a protruding structure is necessarily formed to be connected to the ringer tube. That is, since the call can not be composed of only a thin needle integrally formed and necessarily has a protruding or fastening structure with a predetermined volume, in order for the call connected to the ringer tube to be finally fixed to the skin of the body, You have to tape multiple times. Further, in the case of a patient, there is a problem that a large and protruding taped fixing part is cumbersome, there is no appearance of appearance, and a problem of being caught by an outside object and falling out of the cry may occur.

In addition, the call needle 21 of the prior patent is a structure in which the inserted length in the blood vessel can not be adjusted. As in the prior patent, the conventional call needle 21 has a structure in which the sink 20 is completely inserted into the inside. That is, in order to guide the flexible call needle 21 into the blood vessel, the sharp metal needle needle 31 is vertically penetrated inside the call needle 21 so as to be exposed to the outside of the end of the call needle 21, The length of the guide member 21 is limited. Therefore, even after removing the metallic needle, it is impossible to adjust the insertion length of the call needle after invading the shout and the needle, thereby restricting the position of the chemical solution supply.

As described above, the needle for supplying the conventional ringer, the liquid solution, the chemical solution and the like for a long period of time has necessarily accompanied the replacement work of the needle after the invasion. Thus, the present applicant has devised a needle for supplying a chemical solution, which can transmit a chemical solution without a separate ringer needle and a fastening process when the needle and the needle are inserted into the blood vessel and the needle is removed.

Korean Patent No. 10-0780407

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an integral set of needle for supplying a chemical liquid, which can transmit a chemical solution without a separate ringer needle and a fastening process when the needle and the needle are inserted into the blood vessel and the needle is removed. Accordingly, the present invention provides a needle set that can easily insert a needle into a blood vessel by an unsuspected method.

The present invention also provides an integral set of chemical liquid supply needles capable of adjusting the inserted length of the cuff.

It is another object of the present invention to provide an integral needle set for supplying a chemical liquid which can be provided at an inexpensive unit price and which is excellent in spreadability.

According to an aspect of the present invention, there is provided an integrated medical liquid supply needle set characterized by being capable of supplying a chemical solution into a blood vessel by only one-time injection without connecting the tube to the tube for injecting the drug solution into the shout A hollow tube body portion connected to a container carrying the medicinal solution for medicines and to which the medicament solution is delivered, and a tube end portion inserted into the blood vessel and formed with an invasive hole at the side thereof to eject the drug solution into the invasion hole or end Flexible material cry; And a needle of a rigid material which is scanned by the invasion hole and guides the tube distal end portion into a blood vessel and is drawn out.

Preferably, the tube body and the tube distal end portion are integrally formed so that the length of the tube distal end inserted into the blood vessel can be adjusted by the sinking guide.

Preferably, the infiltration hole at the distal end of the tube is cut into a curved line having one side orthogonal to the longitudinal direction of the distal end of the tube and the other bent in the longitudinal direction of the distal end of the tube.

Preferably, the tip of the tube may be formed at a position spaced from the distal end by 0.5 cm to 2.5 cm.

Preferably, the tip of the tube is made of an elastic material.

Preferably, said sink is a needle inserted into the distal end of the tube; And a body having a cylindrical shape to which the needle is fixed. The body is configured such that as the needle is scanned into the invasion hole formed in a side surface of the tube, the tip of the tube, which is bent from the tube body, And the support bracket may be provided with a fastening portion to which the needle is fixed.

Preferably, the support bracket is in the shape of a cylindrical cylinder enclosing the proximal portion of the needle, and the end can be slitably cut.

Preferably, the support bracket has a tapered shape in which the diameter of the support bracket is reduced in a direction in which the needle is fixed, and a thread is formed on an inner surface connected to the body so that the support bracket can be detached from the body.

According to the present invention, the incision is inserted into the side of the call connected to the container carrying the drug solution to guide the call into the blood vessel. Therefore, the needle structure according to the present invention can transmit a chemical solution without a separate ringer needle and a fastening process when the needle and the needle are inserted into the blood vessel and the needle is removed. Accordingly, there is an advantage that no unnecessary pain is caused to the patient, the risk of vascular injury is reduced, and the risk of infection is not hygienic because there is no need for a replacement process of needles at the time of injection.

Further, since the incision is inserted into the side surface of the cuff, the length of the tube distal end portion is not required to be limited, and the tube body portion and the tube distal end portion of the cuff are integrally formed, It is possible to adjust the insertion length of the inserted tip of the tube. Accordingly, the present invention has an advantage in that it can be injected deep into the body. Further, the present invention is advantageous in that it can be provided at an inexpensive unit price and excellent in the spreadability.

1 shows a conventional liquid supply device.
Fig. 2 shows a set of integral needle for supplying a chemical solution according to an embodiment of the present invention.
FIG. 3 is an enlarged view of a call and a needle in the chemical-solution supply needle set of FIG. 2; FIG.
Fig. 4 shows an embodiment in which the chemical-solution supplying needle set of Fig. 2 is simplified in order to explain the injection method of the chemical-solution supplying needle set according to the embodiment of the present invention.
Fig. 5 shows the configuration of the set of chemical-solution needles realized in Fig.
FIG. 6 shows a state in which a test rat is injected with a call and a sink of a set of needle for supplying a chemical solution as shown in FIG.
FIG. 7 shows a state in which the needle of the chemical-liquid supply needle set illustrated in FIG. 4 is taken out.
Fig. 8 shows a state in which the tip of the tube of the call after confirming the withdrawal of the needle of Fig. 7 confirms the completion of the invasion into the blood vessel.
Fig. 9 shows a state in which the tip end of the tube is fixed by taping after taking out the needle of Fig.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to or limited by the exemplary embodiments. Like reference numerals in the drawings denote members performing substantially the same function.

The objects and effects of the present invention can be understood or clarified naturally by the following description, and the purpose and effect of the present invention are not limited by the following description. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Fig. 2 shows a set of integral needle for supplying a chemical solution according to an embodiment of the present invention. FIG. 3 is an enlarged view of the call 60 and the needle 70 in the chemical-liquid supply needle set of FIG.

2 and 3, an integral set of needle for supplying a chemical liquid comprises a call 60 and a needle 70. The call 60 is connected to the container 1 carrying the medicinal liquid for medical use. The container (1) may be filled with a chemical solution requiring long-term administration for the treatment of patients such as liquid or blood.

The call 60 may include a tube body portion 601 and a tube tip portion 603. The call 60 can be provided as a flexible material. It is desirable that the call 60 be flexible and the tube tip 603 be provided as a medical material which is harmless to invasion. In this embodiment, as shown in FIG. 1, it can be confirmed that the tip end portion 603 of the needle, which is the needle portion of the call inserted into the blood vessel, is provided directly connected to the medical liquid supply bottle 1.

The tube body portion 601 can be understood as a hollow chemical liquid supply line through which the chemical liquid is transferred. The tube body 601 may be provided with a chemical liquid control valve 3 for controlling the rate at which the chemical liquid flows.

The tube distal end portion 603 can be understood as a ringer needle which is invaded into the blood vessel. In this specification, the tip end portion 603 of the tube is inserted into the blood vessel. However, in order to emphasize the feature of integrating with the tube to which the drug solution is supplied without limitation of the length of the characteristic of the present invention, .

The tube distal end portion 603 may be made of an elastic material. In this embodiment, the tube distal end portion 603 can be provided in a form capable of being detachably connected to the tube body portion 601. When the tube distal end portion 603 is detachable from the tube body portion 601, the tube body portion 601 can be reused. The tube distal end portion 603 is separated from or coupled with the tube body portion 601 in the state where the tube distal end portion 603 is inserted into the blood vessel. Or separated from each other.

The tube distal end portion 603 has a side surface with an infiltration hole 6031 formed therein to eject the chemical liquid into the invasion hole 6031 or the distal end 6033. Note that, in the present embodiment, the tube end portion 603 is a structure in which the sink 70 can be inserted from the side rather than the insertion of the sink 70 in the longitudinal direction. That is, the conventional call 60 has a structure in which the fall is inserted in the longitudinal direction. Therefore, when the conventional needle structure is stuck in a blood vessel, it is impossible to inject the needle in a state of being connected to the chemical liquid supply bottle 1. On the other hand, in the present embodiment, the needle 70 is inserted and guided from the outside of the tube distal end portion 603, so that the tube distal end portion 603 can be scanned while being connected to the tube body portion 601 in the longitudinal direction. For this reason, the call 60 according to the present embodiment is not required to be connected to a separate ring needle when only the acupuncture 70 on the side is removed after being inserted together with the acupuncture 70, Supply becomes possible.

At this time, the position of the penetration hole 6031 in which the sink 70 is inserted from the tube distal end portion 603 is very important. As described above, the tube distal end portion 603 is a needle portion inserted into a blood vessel. As a result, the drug will be discharged to the distal end 6033 of the tube distal end portion 603, and the insertion of the sink 70 can be adjusted depending on the position of the invasion hole 6033, which is another hole into which the sink 70 is inserted, As shown in FIG.

In this embodiment, the tube distal end portion 603 may be formed with an invasion hole 6031 at a position spaced from the distal end 6033 by 0.5 cm to 2.5 cm. When the invasion hole 6031 is formed within 0.3cm from the distal end 6033, the area of the tube distal end portion 603 guided by the needle 70 is too small to perform the procedure. When the invasion hole 6031 is formed at a distance of more than 2.5 cm from the distal end 6033, the invasion hole 6031 is not inserted into the blood vessel and is exposed to the outside, 70) into the blood vessels may damage the blood vessels.

Therefore, it is preferable that the invasion hole 6031 is formed at a position spaced from the distal end 6033 by 0.5 cm to 2.5 cm. When the invasion hole 6031 is formed as described above, the incision 70 can smoothly guide the tube distal end 603 to invade the blood vessel, and besides, there is an additional advantage that the supply of the chemical solution becomes smooth. The invasion hole 6031 formed in the range of 0.5 cm to 2.5 cm from the distal end 6033 is inserted into the blood vessel and is not exposed to the outside. Therefore, the discharge port through which the chemical solution can flow out into the blood vessel is two at the end (6033) and the invasion hole (6031). When the end 6033 of the ringer needle is one end, there is a problem that the supply of the chemical solution is not smoothly performed when the end 6033 is occasionally blocked by the blood vessel wall or clogged by the blood clot. In this embodiment, since the outlets through which the chemical liquid is discharged are two at the distal end 6033 and the invasion hole 6031, the chemical liquid can be discharged more smoothly.

The infiltration hole 6031 may be formed in a nail shape in which one side is cut perpendicularly to the longitudinal direction of the tube distal end portion 603 and the other side is cut into a curve bent in the longitudinal direction of the tube distal end portion 603. The bent direction of the penetration hole 6031 may be the direction of the distal end 6033 and may be the direction of the tube body portion 601. However, the bent direction of the penetration hole 6031 corresponds to the shape of the support bracket 7031 to be described later.

The length between the one end vertically cut in the nail-shaped infiltration hole 6031 and the other end of the curved line may be 0.2 mm to 5 mm depending on the thickness of the needle. The width of the penetrating hole 6031 may be 0.2 mm to 5 mm, depending on the thickness of the sinking hole.

The length of the tube distal end portion 603 inserted into the blood vessel can be adjusted by the guide of the incision 70. The length of the tube tip portion 603 inserted into the blood vessel can be adjusted. In the present embodiment, the tube body portion 601 and the tube distal end portion 603 are integrally formed. The ringer and the ringer needles for supplying the chemical solution are provided in separate configurations, and are provided as one set without requiring a fastening operation This is to explain that Since the tube end portion 603 according to the present embodiment is connected to the tube body portion 601 in the longitudinal direction and inserted into the side surface of the sink 70, the length of the tube distal end portion 603 is longer than the length Not to be restrained. That is, the tube distal end portion 603 may be invaded into the blood vessel by the guide of the incision 70, and the entirety of the withdrawal tube distal end portion 603 of the incision 70 may be inserted into the blood vessel. In other words, the degree of insertion of the tube distal end portion 603 by the length of the tube distal end portion 603 can be adjusted so long as the invasion hole 6031 is not exposed. This is because the tube tip 603 and the needle 70 are combined and do not require any structural features other than the invasion hole 6031. [ In other words, the tube distal end portion 603 can be inserted into the blood vessel as a whole because the tube end portion 603 can receive the guide of the incision 70 without the need of any fastening structure alone.

Although not shown in FIGS. 1 to 4, the tube distal end portion 603 is provided at 0.5 cm to 1.5 cm above the infiltrating hole 6031 in the distal direction so as to confirm whether the infiltrating hole 6031 is inserted into the blood vessel, See Fig. 7) can be formed. More preferably, the display line 6032 may be displayed in a color 1 cm outside the invasion hole 6031.

The incision 70 can be understood as a needle of a rigid material that guides the call 60 into the blood vessel. The needle 70 is injected into the invasion hole 6031 to guide the tube distal end portion 603 into the blood vessel and then to be drawn out.

The needle 70 may include a needle 701 and a body 703. [ Although not shown in the drawing, the incision 70 can check that the blood 70 has been inserted into the blood vessel in the body 703, and can include a medical absorbent cotton that is highly hygroscopic so that the blood is not pushed out of the body 703, It is possible.

The needle 701 is made of a metal material, and its end is cut into an oblique line so as to facilitate skin invasion. A distal portion formed with the end of the needle 701 is inserted into the tube distal end portion 603.

The body 703 may be provided in a cylindrical shape for fixing the needle 701, but is not limited thereto. The body 703 will be capable of design modification of the shape to the extent that it is easy for the practitioner to grasp and invade.

As the needle 701 is injected into the penetration hole 6031 formed in the side surface of the tube distal end portion 603 of the body 703, the tube distal end portion 603 bent from the tube body portion 601 is not pushed, The support bracket 7031 may be provided on the fastening portion to which the needle 701 is fixed.

The support bracket 7031 is in the shape of a cylindrical cylinder that surrounds the proximal of the needle 701, and its end is sloped. In this specification, a portion where the needle 701 is connected to the body 703 is represented as a proximal portion and a portion exposed from the support bracket 7031 is represented as a distal portion.

According to the foregoing description, the tube distal end portion 603 is provided so as not to have the sink 70 and any fastening means other than the invasion hole 6031. [ In other words, since the tube distal end portion 603 requiring guiding is merely perforated, the tube distal end portion 603 from the end portion 6033 to the invasion hole 6031 when the needle 701 is inserted into the tube distal end portion 603 A configuration capable of pressing into the blood vessel is required for the needle 70. Accordingly, it is preferable that the support bracket 7031 has a shape in which the end portion is sloped so as to correspond to the shape of the invasion hole 6031.

The support bracket 7031 may be provided in a tapered shape whose diameter decreases in a direction in which the needle 701 is fixed and may be detached from the body 703 by forming a thread on the inner side connected to the body 703 .

Fig. 4 shows an embodiment in which the chemical-solution supplying needle set of Fig. 2 is simplified in order to explain the injection method of the chemical-solution supplying needle set according to the embodiment of the present invention. Fig. 5 shows the configuration of the set of chemical-solution needles realized in Fig.

Referring to FIGS. 4 and 5, the call 60 uses a chemical liquid supply tube as an example in which the tube distal end portion 603 and the tube body portion 601 are integrated. The call 60 is directly connected to the chemical liquid supply bottle 1. In this embodiment, the bottle 1 carrying the chemical liquid is replaced by a syringe. As in the present embodiment, the bottle 1 does not necessarily refer to the form of the ringer bottle 1 shown in Fig. 2, but may mean a member on which a drug solution for administration to a patient can be carried.

As shown in Fig. 4, the acupuncture 70 passes through the infiltrating hole 6031 formed in the side surface of the tube distal end portion 603, thereby exposing the sharpened end. Note that the sink 70 is not inserted vertically into the inside of the call 60 but inserted into the side. The embodiment of FIG. 4 is a simplified implementation of the decant 70 to illustrate the scanning method, with the support bracket 7031 in an unjoined state. 6 to 9, an experimental mouse for injecting a chemical solution is placed in a case 9, and an injection process for fixing the call 60 after drawing out the call 60 and the insertion 70 of the call 70 and withdrawing the call 70 Lt; / RTI >

Fig. 6 shows a state in which the call 60 and the needle 70 of the chemical-liquid supply needle set implemented in Fig. 4 are injected into a laboratory mouse. The needles were inserted into the tail portion of the experimental rat, and in Fig. 6 (b), it was confirmed that the needle 7 was guided to the call 60 and injected into the tail together. In the present embodiment, since the support bracket 7031 is not realized, the needle is inserted by pressing the invasion hole 6031 with the index finger.

Fig. 7 shows a state in which the needle 70 of the chemical-solution supply needle set is taken out as shown in Fig. FIG. 7A shows a state in which the needle 70 is pulled out from the call 60, and FIG. 7B shows a state in which the insertion length of the call 60 after the pull 70 is adjusted. A display line 6032 may be formed on the tube distal end portion 603 of the call 60 so as to confirm that the invasion hole 6031 is inserted into the blood vessel as shown in FIG. As shown in FIG. 7, the tube end 603 and the tube body 605 are integrally formed, and the length of insertion of the call 60 can be adjusted by the absence of a separate fastening structure.

FIG. 8 shows a state in which the tube tip 603 of the call 60 after confirming the depression 70 of FIG. 7 confirms that the invasion of the blood vessel has been completed. The practitioner checks that the blood flows into the tube as the call 60 is correctly infiltrated into the blood vessel.

FIG. 9 shows a state in which the tube tip 603 is tapped and fixed after drawing the needle 70 shown in FIG. According to the present embodiment, it is not required to have a fastening structure that projects from the tube of the call 60 or has to be enlarged in diameter. Therefore, the practitioner can easily fix the call 60 without having to excessively taping, and there is no aesthetic sense of aesthetics in the patient's stance, and the call 60 can not easily escape even if the user touches or hits an external object.

4 to 9, when the needle according to the embodiment of the present invention is used, unlike the conventional injection method of the chemical liquid supplying needle, the call 60 is drawn out after the inserted needle 70 is drawn out It is not necessary to fasten the needle to the needle or the tube of the needle. Therefore, the integral set of needle for supplying a chemical solution according to the embodiment of the present invention does not require unnecessary pain for the patient because the needle replacement process is not required at the time of injection, reduces the risk of vascular injury, There is no. Further, since the fastening portion of the structure protruding from the tube of the call 60 is not required, the taping and fastening operation is easy, and even after fixing, the long-time invasive state can be stably maintained.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. will be. Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by all changes or modifications derived from the scope of the appended claims and equivalents of the following claims.

1: container
3: Chemical solution regulator
60: Call
601: tube body portion
603: tube tip
6031: Immersion hole
6032: display line
6033: Terminal
70: Break
701: Needle needle
703: Body
7031: Support Bracket

Claims (8)

A flexible tube body inserted into the blood vessel and having an infiltrating hole formed on a side thereof and having a tube tip portion for ejecting the drug solution into the infiltrating hole or the distal end thereof; shout; And
And a needle of a rigid material which is scanned by the invasion hole to guide the tube distal end portion into a blood vessel and then drawn out,
Wherein the cigarette is capable of supplying the drug solution into the blood vessel by only one-time injection without replacement of the needle to be injected into the cigarette.
The method according to claim 1,
The cry,
Wherein the tube body portion and the tube distal end portion are integrally formed so that the length of the distal end of the tube inserted into the blood vessel can be adjusted by the sinking guide.
The method according to claim 1,
The infiltrating hole at the tip end of the tube,
Wherein one end is cut perpendicularly to the longitudinal direction of the tube distal end, and the other end is cut into a curved line bent in the longitudinal direction of the tube distal end to form a nail shape.
The method according to claim 1,
The tube-
And the infiltration hole is formed at a position spaced from the distal end by 0.5 cm to 2.5 cm.
The method according to claim 1,
Wherein the tip end of the tube is made of an elastic material.
The method according to claim 1,
The above-
Wherein the distal portion is inserted into the distal end of the tube; And
And a cylinder-shaped body to which the needle is fixed,
The body,
The needle is inserted into the infiltration hole formed in the side surface of the tube, and the tip of the tube, which is bent from the tube body, is pressed without being pushed in the direction of the blood vessel, And a needle for supplying a chemical liquid.
The method according to claim 6,
The support bracket,
Wherein the needle is shaped like a cylindrical cylinder that surrounds the proximal portion of the needle, and the end portion of the needle is sloped.
8. The method of claim 7,
The support bracket,
A tapered shape whose diameter decreases in a direction in which the needle is fixed,
Wherein a screw thread is formed on an inner side surface of the needle for connection with the body so that the needle can be detached from the body.

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