JPH0317557A - Blood introducing auxiliary jig to measuring pipe and blood introducing utensil combined therewith - Google Patents

Abstract

PURPOSE:To introduce the blood in a blood collecting tube into a measuring pipe by simple operation without being infected with disease originating from blood by allowing a blood collecting tube engaging part to advance and retract with respect to the blood collecting pipe. CONSTITUTION:The blood introducing auxiliary jig 1 to a measuring pipe 5 is mounted to the tube opening 3 of a bottomed blood collecting pipe 2 to be used and has the blood collecting tube engaging part 4 engageable with the tube opening 3 of the blood collecting tube 2 in a freely advancing and retracting state so as to hold sealability and the measuring pipe engaging piercing port 6 engageable with the measuring pipe 5 inserted in the blood collecting tube 2 so as to hold sealability. By allowing the blood collecting tube engaging part 4 engaged with the blood collecting tube 2 to advance and retract with respect to the blood collecting tube 2, the blood B in the blood collecting tube 2 can be introduced into the measuring pipe 5 up to a predetermined position. By this method, the blood in the blood collecting tube can be introduced into the measuring pipe 5.

Description

Detailed Description of the Invention [Industrial Application Field 1] The present invention relates to a blood introduction aid into a measurement tube used when measuring erythrocyte sedimentation rate, etc. using a measurement tube such as a Westergren measurement tube, and the same. This invention relates to a blood introduction device that combines the following.

[Conventional technology]

Conventionally, the erythrocyte sedimentation rate has been measured using a Westergren measurement tube (hereinafter simply referred to as measurement tube) 5 as shown in FIG. This measuring tube 5 has both ends open and has a total length of about 3 OL. ．． Tube hole approx. 2.55. ．． It is made from a transparent measuring tube such as a uniform glass tube. This measuring tube 5 has a diameter of 200 mm from the lower end opening 5a. ．． ．． It is graduated in l am increments over 200. ．． The scale is 0
It is a point (base point). To measure the erythrocyte sedimentation rate using this measurement tube 5, first, blood B collected with a vacuum blood collection tube 2 or a blood sampling tube (not shown) as shown in FIG. , 3.8% sodium citrate was added to blood B.
Prevent it from solidifying. Next, this blood B is poured into the measuring tube 5.
Introduce it in the following way. ■After collecting blood with a syringe, pour the blood B in the syringe into a test tube, insert the measuring tube 5 into the blood B in the test tube, and suck the air inside the measuring tube 5 through the opening at one end of the measuring tube 5. By doing so, the pressure inside the fixed tube 5 is reduced and the blood is sucked up to the O point into the measuring tube 5. ■After collecting blood with vacuum blood collection tube 2, open the tube opening and vacuum blood collection tube 2.
Inside it! If insert the fixed tube 5 and suck up the blood B into the measuring tube 5 up to point O in the same manner as in ■ ■After collecting blood with the syringe, hold the measuring tube 5 horizontally and place your finger into the upper end opening 5b of the measuring tube 5. Inject blood B from the syringe into the measuring tube 5 up to the zero point, taking care not to introduce any air bubbles. Then, the measuring tube 5 is vertically erected on a blood sedimentation stand S as shown in FIG. That is, the lower end opening 5a of the measuring tube 5 containing the blood B is pressed against the rubber plate R of the blood sedimentation stand S to prevent the blood B from leaking from the lower end opening 5a. In order to maintain this state, the upper end opening 5b side is pressed by a stopper P with a spring, and the measuring tube 5 is placed vertically on the blood sedimentation stand S. After this, the interface at which red blood cells have settled over time is measured.

■As shown in FIG. 18, the pipette l3 consists of a transparent tube body, and a piston 14 is attached to the outer periphery of one end of the pipette l3. This piston l4 is inserted into the vacuum blood collection tube 2 and reduces the volume within the vacuum blood collection tube 2, thereby introducing blood B into the pipette l3. and,
When the pipette l3 is introduced to the position marked on the vertically mounted stand (not shown), blood B is secured to the designated position on the bivet l3 by two locking tongues (not shown) mounted on the stand. Compress and occlude the position. Blood B is then formed as a desired blood column isolated from the vacuum blood collection tube 2 upward from this predetermined position. In this state,
Measure the interface at which the red blood cells have settled over time. However, in order to measure the erythrocyte sedimentation rate using each of the instruments described in ■ to ■ above, it is necessary for a person to draw blood B into the measuring tube 5 up to the 0 point by sucking it with the mouth or using a syringe. ．． Although this operation is simple, it requires skill, and such manual work is time-consuming, making it difficult to process a large number of samples in a short time. Furthermore, in the measurement using the method (2), since a pipette I3 that can be compressed and occluded is used, there is a risk that the pipette I3 may be inadvertently bent. Blood also spilled to the position marked on the stand.
Adjustment operations for introducing iB require skill.

In addition, since the above-mentioned work processes are open to the public, there is a possibility that medical workers may become infected with blood-borne diseases such as viral hepatitis and AIDS in the hospital. Furthermore, blood B may leak from the lower end opening 5a of the measuring tube 5 set in the blood sedimentation stand S. The following methods are known to solve the above-mentioned inconveniences. ■As shown in Fig. 19, one end of the blood sampling/measuring tube 15 is enlarged in diameter so that it can fit into the blood sampling tube holder 1), and is equipped with an external scale that allows the blood sampling/measuring tube 15 to be inserted inside. Vacuum blood is collected using a vacuum blood collection tube 17 for blood sediment measurement, which is equipped with a tube 16, and the O point is adjusted by moving the graduated outer tube 16 up and down. l7
Stand vertically. Then, in this state, measure the interface at which the red blood cells have settled at intervals. ■As shown in Fig. 20, insert the lower end opening 5a of the measuring tube 5 into the blood B in the vacuum blood collection tube 2, insert the lower end opening 5a of the measuring tube 5, and then Suction device (
When blood B is aspirated to point 0 using a tube (not shown), the superabsorbent polymer in the form of a gel in the fibrous stopper C located at point O in the measuring tube 5 instantly absorbs the water in blood B. The blood B absorbs and swells into a sealed state, and blood B stops at the 0 point.

After this, the measuring tube 5 is left standing vertically to measure the erythrocyte sedimentation rate. ■As shown in Fig. 21, after the collected blood B is transferred to a container y having a hole h with an inner diameter approximately equal to the outer diameter of the measuring tube 5, the measuring tube 5 is fitted into the hole h of the container y. do. Since the measuring tube 5 is fitted into the hole h of the container y so as to be able to move forward and backward while maintaining a sealing property, as the measuring tube 5 is fitted into the hole h of the container y, the blood B in the container y is measured. When blood B has entered the tube 5 and has been introduced to the 90th point, the fitting of the measuring tube 5 is stopped. after this,
Measure the erythrocyte sedimentation rate by standing the measuring tube 5 vertically. [Problems to be Solved by the Invention] However, in the measurement using the conventional method (■) described above, the peripheral blood measuring tube l5 used is relatively long, and the blood collecting measuring tube l5 gets in the way when blood is collected from the human body. There is a possibility that it will become. In addition, conventional example (2) is easy to operate and does not take much time, but because the space between the measuring tube 5 and the vacuum blood collection tube 2 is open, there is a possibility that medical personnel may become infected with blood-borne diseases in the hospital. be. Furthermore, since conventional example (■) involves the operation of transferring blood B to another container y, there is a possibility of the above-mentioned nosocomial infection. Therefore, the present invention was made in view of the above circumstances, and
When measuring the erythrocyte sedimentation rate, the operation is easy and time-saving, and the blood in the blood collection tube is introduced into a measuring tube such as a Westergren measuring tube without infecting medical personnel with blood-borne diseases. The purpose of the present invention is to provide an auxiliary device for introducing blood into a measuring tube used for the purpose of the present invention, and a blood introducing device combining the same.

[Means to solve the problem]

In order to solve the above problems, the blood introduction aid into a measurement tube of the present invention is used by being fitted into the tube opening of a bottomed blood collection tube, and is advanced and withdrawn while maintaining a sealing property at the tube opening of the probe tube. A strain blood vessel fitting part that can be fitted freely, and a measurement tube fitting through hole that can fit a measurement tube inserted into the blood collection tube while maintaining sealing properties, and that can be fitted to the blood collection tube. The blood in the blood collection tube can be introduced into a predetermined position within the measurement tube by moving the blood collection tube fitting part, which is attached to the blood collection tube, back and forth with respect to the blood collection tube. Further, the through hole for fitting the measuring tube may have an inner diameter that allows the measuring tube to move forward and backward while maintaining its sealing property. In addition, the sliding resistance between the measurement tube fitting penetration hole and the measurement tube is
It is preferable that the sliding resistance be smaller than the sliding resistance between the blood collection tube fitting part and the blood collection tube. Further, it is even better if the surface of the measurement tube fitting through-hole that slides on the measurement tube is provided with at least one or more ribs substantially perpendicular to the axial direction of the blood collection tube.

Furthermore, the blood introduction device is a combination of the above-mentioned blood relative specialized assistance device for the measurement tube and a blood collection tube. [Function 1] According to the blood introduction aid into the measuring tube having the above configuration, the measuring tube is fitted into the measuring tube fitting through hole in a sealed state, and the blood collecting tube fitting part is inserted into the blood collecting tube in this state. At the same time as fitting, the measuring tube is immersed in the blood in the blood collecting tube, and the blood collecting tube fitting part is moved forward and backward with respect to the blood collecting tube, thereby raising and lowering the pressure inside the blood collecting tube and moving the blood in the blood collecting tube to a predetermined position within the measuring tube. Easy to introduce. In addition, if the measurement tube can be moved forward and backward into the blood in the blood collection tube while maintaining the tightness of the sinus tube to the measurement tube fitting penetration hole,
The volume of the blood-immersed portion of the measuring tube increases or decreases, and the amount of blood corresponding to the volume of the blood-immersed portion of the measuring tube is introduced into the measuring tube, so the blood in the blood collection tube can be more accurately introduced to a predetermined position within the measuring tube. ．． In addition, the sliding resistance between the measurement tube fitting through hole and the measurement tube is
If the sliding resistance is lower than the sliding resistance between the blood collection tube fitting part and the probe tube, the blood introduction aid will not slide when the measuring tube is slid. The operation of advancing and retreating and the operation of advancing and retreating the measuring tube relative to the blood collection tube can be performed in stages. Furthermore, on the surface of the measurement tube fitting through hole that should slide against the measurement tube,
When at least one rib is provided, blood can be introduced into the measuring tube while maintaining even tighter sealing. [Example J Hereinafter, an example of the present invention will be described in detail based on FIGS. 1 to 14. Fig. 1 is a sectional view showing a Westergren measuring tube fitted into the blood introduction device of the present invention, Fig. 2 is a half-cut sectional view of an embodiment of the blood introduction aid into the measuring tube, and Fig. 3 4 is a half-cut sectional view of another embodiment of the aid for introducing blood into a measuring tube, and FIG. FIG. 5 is a sectional view showing a procedure for fitting a blood vessel into a blood vessel, and FIG. 5 is a sectional view showing a Westergren measuring tube fitted to a blood introduction aid into a measuring tube and fitted to a vacuum blood collection tube. ．． In the figure, l indicates an auxiliary tool for introducing blood into the measuring tube (hereinafter simply referred to as the auxiliary tool), and the auxiliary tool 1 has a circular cap shape and is fitted into the tube opening 3 of the vacuum blood collection tube (blood collection tube) 2. ．． This aid l is made of an elastic material such as synthetic rubber. The auxiliary tool 1 has a blood collection tube fitting part 4 on its outer circumferential surface. This blood collection tube fitting part 4 is
As shown in Fig. 2, when fitted to the vacuum blood collection tube 2, it can slide freely forward and backward while maintaining sealing performance in conjunction with the inner wall surface 2a of the vacuum blood collection tube 2. Further, approximately at the center in the axial direction of this auxiliary tool 1, a through hole for fitting a measuring tube (hereinafter simply a through hole) is provided so that the aforementioned Westergren measuring tube (measuring tube) 5 can be fitted while maintaining sealing performance. 6) is provided. At one end of this through hole 6,
A divergent portion 7 is formed, and the divergent portion 7 allows the Westergren measurement tube (hereinafter simply referred to as measurement tube) 5 to be easily inserted into the through hole 6 . Furthermore, as shown in FIG. 3, if a plurality of ring-shaped ribs 6a are provided on the inner surface of the through-hole 6 substantially perpendicularly to the direction of movement of the measuring tube 5, the connection between the through-hole 6 and the measuring tube 5 can be improved. Suitable sealing performance can be maintained while reducing sliding resistance. It is also possible to roughen the inner surface of the through hole 6, such as embossing, or coat the inner surface with a lubricant such as silicone to reduce the sliding resistance with the measuring tube. In addition, when the auxiliary tool 1 is integrally molded, if the above-mentioned treatment (arrangement of ribs 6a, surface roughening, application of lubricant) is performed on the surface that should come into contact with the measuring tube 5, the through hole will be formed. 6 and the measurement tube 5, the sliding resistance between the blood collection tube fitting part 4 and the vacuum blood collection tube 2
It can be made smaller than the sliding resistance between the two, and the operation of introducing blood to a predetermined position in the measuring tube 5, which will be described later, can be performed more easily and reliably.

As shown in FIG. 4, in the auxiliary tool 1 constructed in this way, the measuring tube 5 is inserted into the through hole 6 up to a predetermined position, and is fitted at the predetermined position. Furthermore, in this state, as shown in FIG. Soak in B. Therefore, the air inside the vacuum blood collection tube 2 is compressed by the auxiliary tool 1 and pushes against the blood surface B inside the vacuum blood collection tube 2. Since the upper end opening 5b of the measuring tube 5 is open to the outside, the pressed blood B can be introduced into the measuring tube 5. At this time, if the auxiliary tool l is pushed into the vacuum probe tube 2 beyond the internal volume of the measuring tube 5, the blood B
leaks to the outside from the upper end opening 5b of the measuring tube 5, so the A portion of the blood collection tube fitting portion 4 in FIG. 4 is set to the following conditions. Sunawa? , the eighth part is the part that is inserted into the vacuum blood collection tube 2 when the auxiliary tool 1 is pushed into the vacuum blood collection tube 2 to the maximum extent, and its volume is smaller than the total internal volume of the measuring tube 5, and the above-mentioned 0 of measuring tube 5 in Fig. 15
It is set larger than the internal volume up to the point. The measuring tube 5 is
Normally, its longitudinal dimension is about 300 cm, and its pipe hole is about 2.5 L. Since it is formed evenly with 30x (
2.551" x O.785: l.5, and its internal volume is approximately 1.5 mI2.The 0 point of the measuring tube 5 is 20 L., so the internal volume up to the O point is approximately LO.
mβ. Therefore, if the volume when the auxiliary tool l is pushed into the vacuum blood collection tube 2 to the maximum is V, then ■ is 1.0 mj2
< V < 1.5 mg expressed. Next, we will describe how to use the blood introduction aid l to the measuring tube configured as described above. First, a measuring tube 5 and a vacuum blood collection tube 2 as shown in FIGS. 15 and 16 are prepared. This vacuum blood collection tube 2 contains an anticoagulant 8, and a sealing member 9 is attached to the tube opening surface to maintain a vacuum. A resealing member 1O is provided on the sealing member 9 to protect the inside of the vacuum blood collection tube 2 from contamination with bacteria after blood collection. Next, the patient is pierced with a blood collection tube holder l2 equipped with a blood collection needle 1) as shown in FIG. do. When the predetermined amount of stock blood has been collected, the blood collection tube holder 12
Remove vacuum blood collection tube 2 from the On the other hand, the measuring tube 5 is inserted into the through hole 6 of the auxiliary tool 1, and the measuring tube 5 is fitted in a predetermined position in a sealed state as shown in FIG. Tube port 3 of vacuum blood collection tube 2
Peel off the sealing member 9 affixed to the vacuum blood collection tube 2, insert the auxiliary tool l fitted with the measuring tube 5 in the state shown in FIG. The fitting part 4 is fitted, and the lower end opening 5a of the measuring tube 5 is immersed in the blood fiB in the vacuum blood collection tube 2. Also, first attach the auxiliary tool l to the vacuum blood collection tube 2.
After fitting the blood collection tube fitting part 4, the measuring tube 5 may be fitted. Furthermore, if the blood collection tube fitting part 4 is advanced toward the bottom of the vacuum blood collection tube 2, the air inside the vacuum blood collection tube 2 is compressed and the blood surface B is pushed at the same time. The lower end opening 5a of the measuring tube 5 is immersed in the blood B, and the upper end opening 5b is open to the outside, so that the blood B pushed by the auxiliary tool 1 is introduced into the measuring tube 5. ．． Then, the auxiliary tool 1 is inserted into the vacuum blood collection tube 2 until the end surface of the blood B is introduced into the measurement tube 5 at point O. Even if the end face of blood = B exceeds the O point position, if the auxiliary tool 1 is pulled back from the vacuum blood collection tube 2, the pressure inside the vacuum blood collection tube 2 will decrease, and the end face of blood B in the measuring tube 5 will decrease. also returns to the zero point position, and the end surface of the blood B in the measuring tube 5 can be adjusted to the zero point position. After introducing the blood B into the measuring tube 5 to the O point position, the measuring tube 5 is left standing vertically together with the vacuum blood collection tube 2, and the erythrocyte sedimentation rate is measured. Incidentally, the volume of the portion A of the blood collection tube fitting portion 4 of the auxiliary tool 1 is l. It is set so that Oml < V < 1.5 mff, that is, even if the auxiliary tool I is advanced into the vacuum blood collection tube 2 to the maximum extent, no more than one blood B will be left outside from the measuring tube 5. Therefore, the blood B never leaks from the measuring tube 5 to the outside, and the through hole 6 of the auxiliary tool 1 is configured to fit the measuring tube 5 so that it can move forward and backward while maintaining the closed state. First, the sleeve l is moved forward and backward with respect to the vacuum blood collection tube 2, and adjusted so that the end surface of the blood B in the measurement tube 5 is approximately at the O point position. Subsequent fine adjustments can be made more accurately by moving the measuring tube 5 back and forth to increase or decrease the amount of blood immersed in the blood B by the measuring tube 5. In addition, even if the blood B is introduced into the measuring tube 5 as described above, if for some reason the blood B is not introduced to the O point position of the S-shaped tube 5, first, the blood B is introduced into the sinus-shaped tube 5 by the above-mentioned method. Introduce blood B until it reaches the maximum level. Next, when the auxiliary tool 1 is removed while being careful not to let blood B come out of the lower end opening 5a of the measuring tube 5, the pressure inside the vacuum blood collecting tube 2 is reduced, so that the blood B in the measuring tube 5 is removed from the vacuum blood collecting tube. Return to inside 2,
Finally, air leaks through the upper end opening 5b of the measuring tube 5 into the vacuum blood collection tube 2.
You begin to go inside. Just before the auxiliary tool l comes off the vacuum blood collection tube 2, stop pushing it away, and then reverse the movement and remove the vacuum blood collection tube 2.
Blood B is introduced into the measuring tube 5 by advancing the auxiliary tool 1 toward the bottom of the tube. At this time, the vacuum blood collection tube 2 is
An extra amount of blood B approximately equivalent to the amount of air that has entered into the measuring tube 5 is now introduced into the measuring tube 5, and it is now possible to introduce blood B up to the O point position.

Furthermore, the sliding resistance between the through hole 6 and the measuring tube 5 is configured to be smaller than the sliding resistance between the blood collection tube fitting part 4 and the vacuum tube 2.

Therefore, when sliding the ilI++ fixed tube 5, the auxiliary tool 1 does not slide, so the operation of moving the auxiliary tool 1 forward and backward with respect to the vacuum blood collection tube 2 and the operation of moving the measuring tube 5 forward and backward with respect to the vacuum storage tube 2 are performed. FIG. 14 shows another embodiment of the present invention, and the difference from the embodiment shown in FIGS. 1 to 13 is that the outer peripheral surface of the vacuum blood collection tube 2 The auxiliary tool 20 is externally fitted to the auxiliary tool 2b, and the blood vessel fitting part 24 of the auxiliary tool 2b is formed on the inside. The point is that the position where the vacuum blood collection tube 2 should first be fitted into the opening can be confirmed. Other configurations and operations are similar to those of the embodiment shown in FIGS. 1 to 13, so reference numerals are attached to the drawings and explanation thereof will be omitted.

[Advantageous Effects of the Invention 1] As detailed above, the aid for introducing blood into a measuring tube of the present invention is used by being fitted into the mouth of a bottomed blood collection tube, and is sealed in the mouth of the blood collection tube. The measuring tube fitting part has a measurement tube fitting part that can be fitted in a manner that can move forward and backward while maintaining its properties, and a measurement tube fitting through hole that can fit a measurement tube inserted into the blood collection tube while maintaining its sealing properties. Then, fit the measurement tube into the measurement tube fitting penetration opening in a sealed state, fit the blood collection tube fitting part to the blood collection tube in this state, and immerse the measurement tube in the blood inside the blood collection tube. By moving the fitting portion forward and backward with respect to the blood collection tube, the pressure within the blood collection tube can be raised and lowered, and the blood within the blood collection tube can be easily introduced to a predetermined position within the measurement tube. Therefore, in order to measure the erythrocyte sedimentation rate, γμ1) The operation of introducing blood into a fixed tube, etc. is easy and does not take much time, and can be carried out in a nearly sealed state, so that medical personnel can It has the effect of preventing infection from diseases. Also, is there a through hole for fitting the measurement tube? R1) If the fixed tube has a diameter that allows it to move forward and backward while maintaining its sealing property, the measurement tube can be moved forward and backward while maintaining its sealing property to the through hole for fitting the measurement tube, and the blood in the blood collection tube can be measured. When the tube is taken in and out, the blood-immersed portion of the measuring tube increases or decreases, and blood residue corresponding to the volume of the blood-immersed portion of the measuring tube is introduced into the measuring tube, allowing the blood in the blood collection tube to be placed at a predetermined position within the measuring tube more accurately. It can be introduced. Therefore, in addition to the above-mentioned effects, -1) Blood 1 in the measuring tube can be finely adjusted by inserting and removing the fixed tube, so that the blood introduced into the fixed tube can be more accurately set at a predetermined position. It has the effect of In addition, if the sliding resistance between the measurement tube fitting through hole and E1) fixed tube is made smaller than the sliding resistance between the blood collection tube fitting part and the blood collection tube, it is possible to slide the sinus fixed tube. Since the blood introduction aid does not slide during this process, the blood introduction aid can be advanced and retreated from the blood collection tube, and the measurement tube can be advanced and retreated from the blood collection tube in stages. Therefore, in addition to the above-mentioned effects, there is an effect that the operation of introducing blood into the measuring tube can be made very easy. Furthermore, on the surface of the measurement tube fitting through hole that should slide against the measurement tube,
If at least one rib is provided, blood can be introduced into the measuring tube while maintaining even tighter sealing. Therefore, in addition to the above-mentioned effects, there is an effect of making it easier to introduce blood into the measuring tube.

[Brief explanation of drawings]

1 to 14 show embodiments of the present invention. FIG. 1 is a cross-sectional view showing a state in which a measuring tube is fitted to the blood introduction tool of the present invention, and FIG. 2 is a cross-sectional view showing how blood is introduced into the measuring tube. A half-cut sectional view of an example of an introduction aid. Fig. 3 is a half-cut sectional view of another embodiment of the blood introduction aid into the measurement tube, and Fig. 4 shows the blood introduction aid into the measurement tube in which a Westergren measuring tube is fitted. Figure 5 is a cross-sectional view showing the procedure for fitting the Westergren measuring tube to the blood introduction aid into the measuring tube, and then fitting it to the vacuum tube. Figure 6 is a sectional view of a vacuum blood collection tube attached to a blood vessel holder with a blood stock needle attached, Figure 7 is a half-cut sectional view of the vacuum blood collection tube filled with blood, and Figures 8 to 8 Figure 10 is a cross-sectional view showing how the blood introduction aid into the measuring tube is used, Figures II to 13 are cross-sectional views showing other usage states of the blood introduction aid into the measuring tube, and Figure 14 is the main figure. FIG. 3 is a sectional view showing another embodiment of the invention. Figure 15 is a perspective view of a Westergren measuring tube, Figure 16 is a half-cut cross-sectional view of a vacuum blood collection tube, and Figure 17 is a partial cross-section showing the Westergren measuring tube mounted vertically on a blood sedimentation stand. The side view and FIGS. 18 to 21 are sectional views showing the conventional example. l, 20... 1 Blood introduction aid to the measuring tube 2...
...1 Vacuum stock blood vessel (liquid blood vessel) 3...Tube openings 4, 24...Probe tube surface portion 5...Westergren measuring tube (measuring tube) 6・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・Blood

Claims (5)

[Claims] (1) A blood collection tube fitting part that is used by being fitted into the mouth of a blood collection tube with a bottom and can be fitted into the mouth of the blood collection tube so as to be able to move forward and backward while maintaining a sealing property; A measurement tube fitting through-hole capable of fitting an inserted measurement tube while maintaining sealing properties, and moving the blood collection tube fitting part fitted to the blood collection tube forward and backward with respect to the blood collection tube. A blood introduction aid into a measurement tube, characterized in that the blood in the blood collection tube can be introduced into a predetermined position within the measurement tube. (2) The aid for introducing blood into a measuring tube according to claim 1, wherein the measuring tube fitting through-hole has an inner diameter that allows the measuring tube to move forward and backward while maintaining its sealing properties. (3) The measurement according to claim 2, wherein the sliding resistance between the measurement tube fitting through hole and the measurement tube is smaller than the sliding resistance between the blood collection tube fitting part and the blood collection tube. An aid for introducing blood into the tube. (4) Claims (1) to (4) wherein the surface of the measurement tube fitting through-hole that slides on the measurement tube is provided with at least one or more ribs substantially perpendicular to the axial direction of the blood collection tube. The blood introduction aid into the blood collection tube according to any one of 3). (5) A blood introduction device comprising a combination of the blood introduction aid into the measurement tube according to claims (1) to (4) and a blood collection tube.