Blood collection tube holder and blood collection kit

Abstract

To provide a blood collection tube holder, even when being pressed by a compressed elastic sheath body, preventing a blood collecting tube from easily falling off.SOLUTION: A blood collection tube holder 1 comprises a blood collection tube holder body 11 and a holding member 12. The blood collection tube holder body 11 includes a needle tube 17 supported by a needle base 15 and an elastic sheath body 18 for covering the needle tube 17, and the holding member 12 includes pressure contact members 22. The blood collection tube holder body 11 includes a plurality of contact parts 11d, 11e and 11g coming into contact with the blood collection tube inserted into a hollow part of the blood collection tube holder body 11 from a bottom part 13 side to position the blood collection tube in an axial direction of the blood collection tube holder body 11. The contact parts 11d, 11e and 11g are disposed between the pressure contact members 22 in a circumferential direction of the blood collection tube holder body 11.SELECTED DRAWING: Figure 10

Description

Technical Field

[0001] The present invention relates to a blood collection tube holder and a blood collection kit.

Background Art

[0002] Conventionally, when collecting a blood sample for a blood test or the like, a blood collection kit is used. The blood collection kit collects blood from a living body using a blood collection tool such as a so-called winged needle (needle with wings) having a needle tube to be punctured into a blood vessel, and stores the collected blood sample in a vacuum blood collection tube held by a blood collection tube holder. The blood collection kit includes a blood collection tool and a blood collection tube holder that is connected to the blood collection tool via a connector and holds the vacuum blood collection tube.

[0003] As the blood collection tube holder, for example, a blood collection tube holder known to include a hollow bottomed cylindrical blood collection tube holder body and a holding member that is fitted on the inner peripheral surface of the blood collection tube holder body and removably holds a blood collection tube such as a syringe inserted into the hollow portion of the blood collection tube holder body (see, for example, Patent Document 1).

[0004] The blood collection tube holder described in Patent Document 1 includes a hollow needle tube supported by a needle base attached to the bottom of the blood collection tube holder body and protruding into the hollow portion of the blood collection tube holder body. When a blood collection tube such as a syringe is inserted into the hollow portion of the blood collection tube holder body, the needle tube penetrates the blood collection tube, and the collected blood sample is introduced into the blood collection tube through the needle tube. Further, in the blood collection tube holder described in Patent Document 1, the holding member includes a plurality of pressure contact members. When a blood collection tube such as a syringe is inserted into the hollow portion of the blood collection tube holder body, the pressure contact members swing to the inner peripheral surface side of the blood collection tube holder body while pressing against the outer peripheral surface of the blood collection tube by their own elastic force. As a result, during the introduction of the collected blood sample into the blood collection tube, the blood collection tube holder holds the blood collection tube by the pressure contact members pressing against the outer peripheral surface of the blood collection tube, and can prevent the blood collection tube from falling off from the hollow portion of the blood collection tube holder body.

Prior Art Documents

Patent Documents

[0005] Patent Document 1 Japanese Patent Application Laid-Open No. 5-300899 Summary of the Invention Problems to be Solved by the Invention

[0006] However, when the blood collection tube is inserted into the hollow portion of the blood collection tube holder described in Patent Document 1, the elastic sheath covering the syringe needle is pressed against the tip of the blood collection tube and compressed. When the elastic sheath tries to return to its original state by its own elasticity, there is a problem that the blood collection tube may be pressed against the elastic sheath and fall off from the blood collection tube holder body.

[0007] An object of the present invention is to provide a blood collection tube holder that eliminates such disadvantages and prevents the blood collection tube from falling off even when pressed against the compressed elastic sheath. Means for Solving the Problems

[0008] In order to achieve the above object, the blood collection tube holder of the present invention includes a hollow bottomed cylindrical blood collection tube holder body, and a holding member that is fitted on the inner peripheral surface of the blood collection tube holder body and detachably holds a blood collection tube inserted into the hollow portion of the blood collection tube holder body. The blood collection tube holder body includes a needle base provided at the bottom, a hollow needle tube supported by the needle base and protruding into the hollow portion of the blood collection tube holder body, and an elastic sheath covering the entire length of the needle tube. The holding member includes a hollow cylindrical fitting member fitted on the inner peripheral surface of the blood collection tube holder body, and a plurality of pressure contact members protruding from the fitting member into the hollow portion of the blood collection tube holder body. When the blood collection tube is inserted into the hollow portion of the blood collection tube holder body, the plurality of pressure contact members swing to the inner peripheral surface side of the blood collection tube holder body while swinging, and press against the outer peripheral surface of the blood collection tube by their own elastic force. In the blood collection tube holder, the blood collection tube holder body includes a plurality of contact portions that contact the blood collection tube inserted into the hollow portion of the blood collection tube holder body from the bottom side to position the blood collection tube in the axial direction of the blood collection tube holder body. The contact portions are arranged between the pressure contact members in the circumferential direction of the blood collection tube holder body.

[0009] Further, the blood collection kit of the present invention includes the blood collection tube holder of the present invention, a blood collection needle tube puncturing a blood vessel, and a blood collection tool including a holder-side connector that can be connected to the blood collection tube holder body so that the blood collection needle tube communicates with the needle tube.

[0010] According to the blood collection tube holder and the blood collection kit of the present invention, when the blood collection tube is inserted into the hollow portion of the blood collection tube holder body, a plurality of pressure contact members protruding from the fitting member of the holding member into the hollow portion of the blood collection tube holder body are pressed by the blood collection tube and swing to the inner peripheral surface side of the blood collection tube holder body. At this time, when the pressure contact members are swung as described above, they try to return to their original state by their own elastic force, and can press against the outer peripheral surface of the blood collection tube to hold the blood collection tube.

[0011] On the one hand, when the blood collection tube is inserted into the hollow portion of the blood collection tube holder main body, the elastic sheath is pressed by the tip of the blood collection tube, and the needle tube penetrates the elastic sheath and is inserted into the blood collection tube. On the other hand, the elastic sheath is compressed between the bottom of the blood collection tube holder main body and the tip of the blood collection tube. The compressed elastic sheath attempts to return to its original state by its own elastic force and presses the blood collection tube backward (the opening side).

[0012] In contrast, in the blood collection tube holder and the blood collection kit of the present invention, since the blood collection tube holder main body is provided with the contact portion that contacts and positions the blood collection tube from the bottom side, it is possible to arrange the blood collection tube at an appropriate position in the axial direction of the blood collection tube holder main body, and it is also possible to prevent the blood collection tube from falling off even when the blood collection tube is pressed by the compressed elastic sheath.

[0013] Further, in the blood collection tube holder of the present invention, it is preferable that the contact portion is alternately arranged with the pressure contact member in the circumferential direction of the blood collection tube holder main body. According to this, the blood collection tube can be arranged at an appropriate position in the axial direction of the blood collection tube holder main body, and the inclination of the blood collection tube can be suppressed.

[0014] Further, in the blood collection tube holder of the present invention, the pressure contact member is arranged in the middle of the two contact portions in the circumferential direction of the blood collection tube holder main body, and it is preferable that the distance between the pressure contact member and the contact portion in the circumferential direction of the blood collection tube holder main body is constant. According to this, the blood collection tube can be arranged at an appropriate position in the axial direction of the blood collection tube holder main body, and the inclination of the blood collection tube can be suppressed.

[0015] Further, in the blood collection tube holder of the present invention, it is preferable that the contact portion is provided so as to protrude from the bottom into the hollow portion of the blood collection tube holder main body. According to this, the blood collection tube can be arranged at an appropriate position in the axial direction of the blood collection tube holder main body, and the inclination of the blood collection tube can be suppressed.

[0016] In addition, in the blood collection tube holder of the present invention, it is also preferable that the contact portion is provided so as to protrude from the inner peripheral surface of the blood collection tube holder main body toward the hollow portion of the blood collection tube holder main body. According to this, the blood collection tube can be arranged at an appropriate position in the axial direction of the blood collection tube holder main body.

[0017] In addition, in the blood collection tube holder of the present invention, it is also preferable that the contact portion is configured in a rib shape that protrudes from the inner peripheral surface of the blood collection tube holder main body toward the central axis side of the hollow portion of the blood collection tube holder main body and extends in the axial direction of the blood collection tube holder main body from the bottom toward the opening side. According to this, the blood collection tube can be arranged at an appropriate position in the axial direction of the blood collection tube holder main body.

[0018] In addition, in the blood collection tube holder of the present invention, it is preferable that the contact portion is arranged on the outer peripheral side of the elastic sheath. According to this, the blood collection tube can be arranged at an appropriate position in the axial direction of the blood collection tube holder main body.

[0019] In addition, in the blood collection tube holder of the present invention, it is preferable that the contact portion is arranged on the outer peripheral side of the tip of the pressure contact member. According to this, the blood collection tube can be arranged at an appropriate position in the axial direction of the blood collection tube holder main body.

[0020] In addition, in the blood collection tube holder of the present invention, the blood collection tube holder main body may be provided with a connector that can be connected to the syringe so that the syringe and the needle tube communicate with each other. According to this, when dispensing the blood sample collected by the syringe into the blood collection tube, it is not necessary to penetrate the blood collection needle tube connected to the syringe into the blood collection tube, so the risk of needle stick during dispensing is reduced and the dispensing can be performed safely.

[0021] In addition, the blood collection kit of the present invention may include the blood collection tube holder of the present invention, a syringe-side connector connectable to a syringe, and a connector including a holder-side connector connectable to the main body of the blood collection tube holder so that the syringe and the syringe needle communicate with each other. According to this, when dispensing the blood sample collected with the syringe into the blood collection tube, it is not necessary to penetrate the blood collection needle connected to the syringe into the blood collection tube, so the risk of needle prick during dispensing can be reduced and the dispensing can be performed safely.

Brief Description of the Drawings

[0022]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Best Mode for Carrying Out the Invention

[0023] Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

[0024] As shown in FIG. 1, the blood collection tube holder 1 of the present embodiment is a part of the configuration of the blood collection kit 2 and is used to hold a vacuum blood collection tube (not shown) that stores a blood sample collected by the blood collection kit 2. The blood collection tube holder 1 includes a hollow bottomed cylindrical blood collection tube holder main body 11 and a holding member 12 that detachably holds the vacuum blood collection tube.

[0025] The blood collection kit 2 of the present embodiment includes a blood collection tube holder 1 and a blood collection tool 5 that is fixed to a living body in a state of being punctured into a blood vessel. The blood collection tool 5 includes a hollow blood collection needle 51 having a sharp tip and being punctured into a blood vessel, a flexible tube 52 connected to the base end portion of the blood collection needle 51, and a female connector 53 (holder side connector of the present invention) connected to the base end portion of the flexible tube 52.

[0026] In the present embodiment, the blood collection needle 51 is supported by a hub 54 to which the tip portion of the flexible tube 52 is connected. A cylindrical protector 55 that covers the tip of the blood collection needle 51 is attached to the hub 54 by sliding it toward the tip side after removing the blood collection needle 51 from the blood vessel. A wing-shaped member 56 for stably fixing to the skin or the like of a living body is fixed to the protector 55. That is, the blood collection tool 5 of the present embodiment is composed of a winged needle (needle with wings) such as a medical needle with a protector disclosed in, for example, Japanese Patent Application Laid-Open No. 2017-196060 of the present applicant.

[0027] The blood collection tube holder body 11 includes a protruding portion 14 that protrudes from the central portion of the bottom portion 13 toward the tip side, and a needle base 15 screwed to the protruding portion 14. The needle base 15 supports a hollow needle tube 17 with a sharp tip protruding into the hollow portion 16 of the blood collection tube holder body 11, and includes a rubber sleeve 18 as an elastic sheath that covers the needle tube 17 over its entire length. On the tip side, it has a hollow portion 19 communicating with the needle tube 17. In addition, a male connector 15a is provided at the tip of the needle base 15.

[0028] Furthermore, the blood collection tube holder body 11 includes a plurality of tongue-shaped protruding pieces 20 that protrude from the bottom portion 13 into the hollow portion 16 of the blood collection tube holder body 11. In this embodiment, the tongue-shaped protruding pieces 20 are provided at four equally spaced positions in the circumferential direction of the bottom portion 13. Note that the blood collection tube holder body 11 of this embodiment is composed of synthetic resin (polypropylene) except for the needle tube 17 and the rubber sleeve 18. The needle tube 17 is composed of metal (stainless steel), and the rubber sleeve is composed of synthetic rubber (isoprene rubber).

[0029] The blood collection tube holder body 11 can be connected to the blood collection device 5 by fitting the male connector 15a of the needle base 15 into the female connector 53. At this time, through the hollow portion 19 of the needle base 15, the flexible tube 52 and the needle tube 17 communicate with each other. As a result, the blood collection needle tube 51 and the needle tube 17 communicate with each other. The fitting between the male connector 15a of the needle base 15 and the female connector 53 can be performed, for example, by a Luer taper. In this embodiment, by inserting the male connector 15a of the needle base 15 into the female connector 53, the male Luer taper on the outer peripheral surface of the male connector 15a is fitted with the female Luer taper on the inner peripheral surface of the female connector 53.

[0030] On the outer peripheral surface of the blood collection tube holder main body 11, a plurality of anti-slip ribs 11a that are continuous (extend) in the axial direction are provided, and a flange 11b is provided at the end portion (base end portion) on the opening side. Further, a peripheral wall 11c that protrudes toward the tip side is provided at the peripheral edge portion of the outer side surface (tip side surface) of the bottom portion 13 of the blood collection tube holder main body 11. In the present embodiment, while shortening the axial dimension of the hollow portion 16 to facilitate the insertion and removal (insertion and extraction) of a vacuum blood collection tube (not shown) with one hand, by providing the peripheral wall 11c, the outer peripheral surface of the blood collection tube holder main body 11 is extended in the axial direction to improve the gripability.

[0031] The holding member 12 includes a hollow cylindrical fitting member 21 that is fitted inside the inner peripheral surface of the blood collection tube holder main body 11, and a plurality of pressure contact members 22 that protrude from the fitting member 21 into the hollow portion 16 of the blood collection tube holder main body 11. In the present embodiment, as shown in FIG. 2, the pressure contact members 22 are provided at four positions at equal intervals in the circumferential direction of the fitting member 21 corresponding to the tongue-shaped protruding pieces 20.

[0032] The pressure contact member 22 includes an arm-shaped portion 23 that protrudes from the fitting member 21 toward the central axis side of the hollow portion 16 of the blood collection tube holder main body 11, and a bent portion 24 that bends from the tip end portion of the arm-shaped portion 23 toward the inner peripheral surface side of the blood collection tube holder main body 11, and includes a first reinforcing piece 25 that connects the fitting member 21 and the arm-shaped portion 23, and a second reinforcing piece 26 that connects the arm-shaped portion 23 and the bent portion 24. Further, the pressure contact member 22 includes a locking portion 27 on the surface (inner side surface) facing the inner peripheral side of the fitting member 21 of the bent portion 24.

[0033] More specifically, the arm-shaped portion 23 is a strip-shaped member that is provided so as to gradually approach the central axis as it protrudes from the tips of trapezoidal plate-shaped trapezoidal portions 21a provided at four positions at the end portion on the tip side (bottom portion 13 side) of the fitting member 21. Further, the bent portion 24 is a strip-shaped member that is provided so as to gradually separate from the central axis as it protrudes from the tip of the arm-shaped portion 23.

[0034] The wrist portion 23 and the bending portion 24 are formed with an arc-shaped cross-section, and the inner surface is a concave surface along the circumference centered on the central axis. Also, appropriate rounding is provided at the corner portions at both ends in the width direction on the inner surface of the wrist portion 23 and the bending portion 24. Further, on the tip side of the outer surface of the bending portion 24, an inclined surface 24a whose thickness gradually decreases toward the tip is provided, and appropriate rounding is provided at the corner portion of the tip of this inclined surface 24a.

[0035] The first reinforcing piece 25 is a wide rib-shaped member provided across the trapezoidal portion 21a and the wrist portion 23 on the inner surface on the valley side of the bent portion between the trapezoidal portion 21a and the wrist portion 23. Similarly, the second reinforcing piece 26 is a wide rib-shaped member provided across the wrist portion 23 and the bending portion 24 on the outer surface on the valley side of the bent portion between the wrist portion 23 and the bending portion 24. Also, the locking portion 27 is a hook-shaped protrusion protruding from the inner surface on the proximal end side of the bending portion 24.

[0036] On the outer peripheral surface of the fitting member 21, rib-shaped positioning protrusions 21b that are continuous (extend) in the axial direction at two locations in the circumferential direction and a ring-shaped retaining protrusion 21c that is continuous in the circumferential direction are provided. The positioning protrusion 21c engages with a recess provided on the inner peripheral surface of the blood collection tube holder main body 11 and is for positioning the holding member 12 in the circumferential direction with respect to the blood collection tube holder main body 11. Also, the retaining protrusion 21c engages with a recess provided on the inner peripheral surface of the blood collection tube holder main body 11, positions the holding member 12 in the axial direction with respect to the blood collection tube holder main body 11, and prevents the holding member 12 from falling off the blood collection tube holder main body 11.

[0037] In this embodiment, the holding member 12 is made of synthetic resin (polypropylene). Also, the number of the positioning protrusions 21b is not particularly limited, and it may be provided only at one location or may be provided at three or more locations.

[0038] Next, the operation of the blood collection tube holder 1 of this embodiment will be described.

[0039] In the blood collection tube holder 1 of the present embodiment, when the male connector 15a of the needle base 15 is fitted into the female connector 53 and connected to the blood collection tool 5, for example, as shown in FIG. 3, the vacuum blood collection tube 3a is inserted into the inner peripheral side of the holding member 12 fitted inside the blood collection tube holder main body 11. Here, the vacuum blood collection tube 3a is of the overcap type and includes a blood collection tube main body 31 made of a hollow bottomed cylindrical body made of glass, hard plastic, etc., a rubber cap 32 that closes the opening end of the blood collection tube main body 31, and a synthetic resin outer tube (overcap) 33 made of a hollow bottomed cylindrical body that protects the blood collection tube main body 31 and the rubber cap 32. The outer tube 33 is externally fitted to the rubber cap 32 and has an opening at the bottom that exposes a part of the rubber cap 32.

[0040] When the vacuum blood collection tube 3a is inserted into the inner peripheral side of the holding member 12, the pressure contact member 22 protruding from the fitting member 21 into the hollow portion 16 of the blood collection tube holder main body 11 is pressed against the vacuum blood collection tube 3a and swings and deforms toward the inner peripheral surface side of the blood collection tube holder main body 11 from the state shown by the virtual line in FIG. 3. At this time, the arm-like portion 23 and the bent portion 24 of the pressure contact member 22 are substantially linear in a cross-sectional view of the pressing result by the vacuum blood collection tube 3a, and try to return to the original state (the state shown by the virtual line in FIG. 3) by their own elastic force and are pressed against the outer peripheral surface of the vacuum blood collection tube 3a.

[0041] On the other hand, when the vacuum blood collection tube 3a is inserted into the inner peripheral side of the holding member 12, the rubber cap 32 abuts against the rubber sleeve 18 and further presses the rubber sleeve 18 toward the needle base 15 side. As a result, the needle tube 17 penetrates the rubber sleeve 18 and the rubber cap 32 and is inserted into the vacuum blood collection tube 3a, while the rubber sleeve 18 is compressed and folded in a bellows shape between the rubber cap 32 and the needle base 15.

[0042] When the needle tube 17 is inserted into the vacuum blood collection tube 3a, the needle tube 17 is communicated with the blood collection needle tube 51 through the hollow portion 19 of the needle base 15 and the flexible tube 52. Therefore, the blood sample collected by the blood collection needle tube 51 of the blood collection tool 5 is introduced into the vacuum blood collection tube 3a through the flexible tube 52 and the needle tube 17.

[0043] At this time, the rubber sleeve 18, which is compressed as described above and is in a bellows-folded state between the rubber cap 32 and the needle base 15, attempts to return to its original state by its own elastic force and presses the vacuum blood collection tube 3a toward the opening side (the fitting member 21 side). Therefore, there is a concern that the vacuum blood collection tube 3a held by the pressing of the pressing member 22 may fall off from the blood collection tube holder main body 11.

[0044] However, in the blood collection tube holder 1 of the present embodiment, as a result of the pressing by the vacuum blood collection tube 3a as described above, the arm-like portion 23 and the bent portion 24 of the pressing member 22 are substantially linear in a cross-sectional view, and the tip of the bent portion 24 contacts the tongue-like protruding piece 20, thereby causing the tongue-like protruding piece 20 to swing and deform toward the inner peripheral surface side of the blood collection tube holder main body 11. When the tongue-like protruding piece 20 is swung as described above, it attempts to return to its original state by its own elastic force and presses the tip of the bent portion 24 toward the outer peripheral surface side of the blood collection tube.

[0045] As a result, in addition to its own elastic force, the pressing member 22 is assisted in pressing against the outer peripheral surface of the vacuum blood collection tube 3a by the pressing force of the tongue-like protruding piece 20, and can hold the vacuum blood collection tube 3a with a stronger force. Therefore, even when the vacuum blood collection tube 3a is pressed toward the opening side by the compressed rubber sleeve 18, it is possible to prevent the vacuum blood collection tube 3a from falling off from the blood collection tube holder main body 11.

[0046] In the blood collection tube holder 1 of the present embodiment, when a predetermined amount of blood sample is stored in the vacuum blood collection tube 3a, the vacuum blood collection tube 3a is removed. At this time, the rubber sleeve 18 returns to its original state as the vacuum blood collection tube 3a is removed and covers the entire length of the needle tube 17, so that it is possible to prevent the blood sample from leaking from the needle tube 17 to the outside.

[0047] In addition, in the blood collection tube holder 1 of the present embodiment, in a state where the male connector 15a of the needle base 15 is fitted to the female connector 53 and connected to the blood collection tool 5, for example, as shown in FIG. 4, the vacuum blood collection tube 3b may be inserted into the inner peripheral side of the holding member 12 fitted inside the blood collection tube holder main body 11. Here, the vacuum blood collection tube 3b is of a rubber stopper cap type and includes a blood collection tube main body 31 formed of a hollow bottomed cylindrical body made of glass, hard plastic, or the like, and a rubber cap 32 that closes the open end of the blood collection tube main body 31.

[0048] The blood collection tube holder 1 of the present embodiment can also prevent the vacuum blood collection tube 3b from falling off from the blood collection tube holder main body 11 even when the vacuum blood collection tube 3b is pressed backward by the rubber sleeve 18 in which it is compressed, in the same manner as in the case of the overcap type vacuum blood collection tube 3a, with respect to the rubber stopper cap type vacuum blood collection tube 3b.

[0049] Furthermore, in the blood collection tube holder 1 of the present embodiment, in a state where the male connector 15a of the needle base 15 is fitted to the female connector 53 and connected to the blood collection tool 5, for example, as shown in FIG. 5, the vacuum blood collection tube 3c may be inserted into the inner peripheral side of the holding member 12 fitted inside the blood collection tube holder main body 11. Here, the vacuum blood collection tube 3c is of a seal type and includes a blood collection tube main body 31 formed of a hollow bottomed cylindrical body made of glass, hard plastic, or the like, and a seal member 34 that closes the open end of the blood collection tube main body 31. The seal member 34 is configured to include a rubber valve body 35 at the center of a sheet made of, for example, an aluminum film. In addition, the blood collection tube main body 31 includes a flange-shaped flange portion 36 that extends outward from the open end. Note that the flange portion 36 may be formed of a separate member fixed to the blood collection tube main body 31.

[0050] The blood collection tube holder 1 of the present embodiment can prevent the blood collection tube 3c from falling off the blood collection tube holder main body 11 even when the blood collection tube 3c is pressed backward by the rubber sleeve 18 that has been compressed, in the same manner as in the case of the overcap type blood collection tube 3a and the rubber stopper type blood collection tube 3b for the seal type blood collection tube 3c. Further, since the seal type blood collection tube 3c includes a flange-shaped portion 36, the flange-shaped portion 36 can be locked to the locking portion 27 of the bent portion 24, and it is possible to more reliably prevent the blood collection tube 3c from falling off the blood collection tube holder main body 11.

[0051] In the present embodiment, by providing the tongue-shaped protruding piece 20 on the blood collection tube holder main body 11, it is possible to generate an appropriate holding force without increasing the overall thickness and size of the holding member 12. As a result, while reliably preventing the blood collection tubes 3a, 3b, and 3c from falling off, the blood collection tube holder main body 11 can be configured compactly, so that the insertability of the blood collection tube 3a and the gripability of the blood collection tube holder main body 11 are not impaired.

[0052] Further, in the present embodiment, the bent portion 24 comes into contact with the tongue-shaped protruding piece 20 after the insertion of the blood collection tubes 3a, 3b, and 3c has progressed to a certain extent. Before that, since the elastic force that serves as the insertion resistance is only the elastic force of the holding member 12, it is possible to easily insert the blood collection tubes 3a, 3b, and 3c while reliably preventing them from falling off.

[0053] Furthermore, in the present embodiment, by providing the first reinforcing piece 25 and the second reinforcing piece 26 on the bent portion that deforms so as to be pushed open by the insertion of the blood collection tubes 3a, 3b, and 3c, it is possible to configure the holding member 12 more compactly while generating an appropriate holding force. Also, by providing the locking portion 27 on the holding member 12, even for the seal type blood collection tube 3c that has a relatively small diameter in portions other than the flange-shaped portion 36 and is likely to tilt with respect to the blood collection tube holder main body 11, it is possible to stably hold it and prevent it from falling off.

[0054] Further, in the present embodiment, an inclined surface 24a is provided at the tip side of the outer surface of the bent portion 24, and a rounded portion is provided at the tip of this inclined surface 24a, so that the contact with the tongue-shaped protruding piece 20 and the deformation of the holding member 12 and the tongue-shaped protruding piece 20 after contact are performed smoothly. Further, by providing rounded portions at both ends in the width direction of the inner surfaces of the arm-shaped portion 23 and the bent portion 24, it is possible to prevent labels or the like attached to the outer peripheral surfaces of the vacuum blood collection tubes 3a, 3b, and 3c from being caught on the arm-shaped portion 23 or the bent portion 24 and peeled off or damaged.

[0055] Note that the tongue-shaped protruding piece 20 may be configured such that the tip portion contacts the inner peripheral surface of the blood collection tube holder main body 11 when it is swing-deformed by the insertion of the vacuum blood collection tubes 3a, 3b, and 3c, or may be configured not to contact. Similarly, the pressure contact member 22 may be configured such that any part contacts the inner peripheral surface of the blood collection tube holder main body 11 when it is swing-deformed by the insertion of the vacuum blood collection tubes 3a, 3b, and 3c, or may be configured not to contact.

[0056] Further, the blood collection tube holder 1 may be provided with, for example, rib-shaped contact portions (not shown) that extend in the length direction (axial direction) on the inner peripheral surface of the blood collection tube holder main body 11 and contact the outer peripheral surfaces of the vacuum blood collection tubes 3a, 3b, and 3c. Further, the blood collection tube holder 1 may be provided with, for example, groove-shaped recesses (not shown) that extend in the length direction on the inner peripheral surface of the blood collection tube holder main body 11 and accommodate the swing-deformed pressure contact member 22 (to avoid interference).

[0057] By providing such a contact portion, it is possible to prevent the vacuum blood collection tubes 3a, 3b, and 3c from tilting with respect to the blood collection tube holder body 11, appropriately penetrate the needle tube 17 into the vacuum blood collection tubes 3a, 3b, and 3c, and stably hold the vacuum blood collection tubes 3a, 3b, and 3c. Further, by providing such a recess, while enabling reliable holding of the vacuum blood collection tubes 3a, 3b, and 3c by providing the holding member 12, the outer diameter of the blood collection tube holder body 11 can be reduced to improve the grip and operability. In addition, even when providing such a recess, the swing-deformed tongue-shaped protruding piece 20 or the pressure contact member 22 may or may not be brought into contact with the bottom surface of the recess.

[0058] Further, the number of the pressure contact members 22 and the tongue-shaped protruding pieces 20 is not particularly limited, and any number can be adopted. Further, the tongue-shaped protruding piece 20 may protrude from the inner peripheral surface of the blood collection tube holder body 11, or may be composed of a separate member fixed to the blood collection tube holder body 11. Further, when sufficient holding force can be obtained by the tongue-shaped protruding piece 20, the first reinforcing piece 25, the second reinforcing piece 26, or the locking portion 27 in the holding member 12 may be omitted.

[0059] Further, the needle base 15 may be integrally formed with the protruding portion 14. Further, the male connector 15a may be provided on the protruding portion 14 separately from the needle base 15. Further, the male connector 15a may include a locking member provided with a female screw. Further, instead of the male connector 15a, a blood collection needle tube puncturing the blood vessel may be provided on the needle base 15.

[0060] Further, in the blood collection kit 2, the blood collection tool 5 may be other than a winged needle and may be connected to the blood collection tube holder body 11 without passing through the flexible tube 52. Further, the blood collection tool 5 may be connected to the blood collection tube holder body 11 via an extension tube provided with an appropriate connector without including the flexible tube 52.

[0061] In addition, the material of the portion of the blood collection tube holder body 11 other than the needle tube 17 and the rubber sleeve 18 can be, in addition to polypropylene, for example, polycarbonate, polystyrene, acrylonitrile butadiene styrene (ABS resin), polyethylene terephthalate, polyvinyl chloride, or polymethyl methacrylate resin (acrylic resin), etc., and the same applies to the holding member 12. Also, the material of the rubber sleeve 18 can be, in addition to isoprene rubber, for example, silicone rubber, butadiene rubber, butyl rubber, natural rubber, urethane rubber, or fluororubber, etc.

[0062] Next, other configuration examples of the blood collection tube holder 1 and the blood collection kit 2 will be described. In the following description, the same components as those shown in FIGS. 1 to 5 are denoted by the same reference numerals and detailed descriptions thereof are omitted.

[0063] FIG. 6 shows an example in which a first contact portion 11d and a second contact portion 11e that contact the outer peripheral surface of the flange-shaped portion 36 of the vacuum blood collection tube 3c are provided on the inner peripheral surface of the blood collection tube holder body 11, and a locking portion 11f is provided on the second contact portion 11e instead of the locking portion 27 provided on the pressing member 22. As shown in FIG. 6, the blood collection tube holder 1 in this example is, like the example shown in FIG. 1, a part of the configuration of the blood collection kit 2 including the blood collection tool 5.

[0064] FIG. 7 is an explanatory cross-sectional view of the blood collection tube holder body 11 in the example shown in FIG. 6. In FIG. 7, the description of the needle base 15, the needle tube 17, and the rubber sleeve 18 is omitted. As shown in FIG. 7, the first contact portion 11d and the second contact portion 11e project toward the central axis side on the inner peripheral surface of the blood collection tube holder body 11 and are configured in a rib shape that is axially continuous (extends) from the bottom portion 13 toward the opening side. Also, the first contact portion 11d and the second contact portion 11e are arranged at four locations in the circumferential direction of the blood collection tube holder body 11 and are arranged alternately in the circumferential direction.

[0065] The first abutting portion 11d is configured in a stepped shape with a large protruding amount on the bottom 13 side, and a stepped portion 11d1 is provided in the middle portion. Further, an inclined portion 11d2 that gradually decreases in protruding amount toward the opening side and connects to the inner peripheral surface is provided at the end portion on the opening side of the first abutting portion 11d. Similarly, the second abutting portion 11e is configured in a stepped shape with a large protruding amount on the bottom 13 side, and a stepped portion 11e1 is provided in the middle portion. And, a locking portion 11f that locks to the flange-like portion 36 of the vacuum blood collection tube 3c is provided at the end portion on the opening side of the second abutting portion 11e.

[0066] The axial lengths of the first abutting portion 11d and the second abutting portion 11e are not particularly limited, but in this example, they are set to approximately 1 / 3 of the axial length of the hollow portion 16 of the blood collection tube holder main body 11.

[0067] Also, in this example, third abutting portions 11g that abut against the tip surfaces of the vacuum blood collection tubes 3a and 3b to position the vacuum blood collection tubes 3a and 3b in the axial direction are provided at four locations on the inner side surface of the bottom 13. This third abutting portion 11g protrudes toward the opening side and is composed of four arc-shaped protrusions centered on the central axis of the hollow portion 16 when viewed from the opening side. By providing such a third abutting portion 11g, the vacuum blood collection tubes 3a and 3b can be arranged at appropriate positions in the axial direction, and the inclination of the vacuum blood collection tubes 3a and 3b after the needle tube 17 penetrates can be suppressed.

[0068] Furthermore, in this example, a first recess 11h that houses portions of the fitting member 21 of the holding member 12 other than the trapezoidal portion 21a, and a second recess 11i that houses the trapezoidal portion 21a of the fitting member 21 and at least a part of the swung pressure contact member 22 and the tongue-shaped protruding piece 20 (to avoid interference) are provided on the inner peripheral surface of the blood collection tube holder main body 11. As described above, by providing such a first recess 11h and a second recess 11i, the outer diameter of the blood collection tube holder main body 11 can be reduced in diameter, and the gripability and operability can be improved. Also, by providing the first recess 11h or the second recess 11i, the degree of freedom in designing the thickness and shape of the holding member 12 is increased, so that the elastic force of the pressure contact member 22 can be made larger than before, and sufficient holding force can be generated.

[0069] The first concave portion 11h is configured as a groove that is continuous (extends) in the circumferential direction at the opening-side end of the inner peripheral surface of the blood collection tube holder body 11. On the bottom surface of the first concave portion 11h, a positioning concave portion 11h1 for accommodating the positioning protrusion 21c of the holding member 12 and a retaining concave portion 11h2 for accommodating the retaining protrusion 21c of the holding member 12 are provided at corresponding positions, respectively.

[0070] The second concave portion 11i is configured as a groove that extends axially from the first concave portion 11h toward the bottom portion 13 side at a position corresponding to the pressure contact member 22 on the inner peripheral surface of the blood collection tube holder body 11. By configuring the second concave portion 11i in this way, the degree of freedom in the design of the arm-shaped portion 23 to which a large moment is applied during the swinging accompanying the insertion of the vacuum blood collection tubes 3a, 3b, 3c and the fitting member 21 that supports it is further increased. Therefore, the elastic force of the pressure contact member 22 can be increased to more reliably prevent the vacuum blood collection tubes 3a, 3b, 3c from falling off. Further, an additional concave portion 11i1 with an increased depth corresponding to the tongue-shaped protruding piece 20 is provided on the bottom portion 13 side of the bottom surface of the second concave portion 11i.

[0071] The depths of the first concave portion 11h and the second concave portion 11i are not particularly limited, but it is preferable that the step formed between the inner peripheral surface of the blood collection tube holder body 11 and the inner peripheral surface of the fitting member 21 is small, and it is more preferable that the inner peripheral surface and the inner peripheral surface of the fitting member 21 are flush.

[0072] By making the inner peripheral surface of the blood collection tube holder body 11 and the inner peripheral surface of the fitting member 21 flush, it is possible to prevent the labels attached to the outer peripheral surfaces of the vacuum blood collection tubes 3a, 3b, 3c or the seal member 34 of the seal-type vacuum blood collection tube 3c from being caught by the step and peeled off or damaged during the insertion and extraction of the vacuum blood collection tubes 3a, 3b, 3c.

[0073] Note that only one of the first recess 11h and the second recess 11i may be provided. Further, as the first recess 11h, only the positioning recess 11h1 and the anti-dropout recess 11h2 may be provided. Further, in the second recess 11i, the additional recess 11i1 may be omitted.

[0074] In this example, an inclined surface 20a with a gradually decreasing thickness toward the tip is provided on the tip side of the inner surface of the tongue-shaped protruding piece 20, and appropriate rounding is provided at the corner of the tip of this inclined surface 20a, so that the contact with the holding member 12 and the deformation of the holding member 12 and the tongue-shaped protruding piece 20 after contact are performed more smoothly.

[0075] Further, two female threads 14a that are screwed with the male thread of the needle base 15 are provided on the protruding portion 14 of the blood collection tube holder body 11. In this example, by providing the two thread grooves so as not to overlap each other in the axial direction, the structure of the resin molding die can be simplified.

[0076] FIG. 8 is an external view of the holding member 12 in the example shown in FIG. 6. As described above, in this example, the locking portion 27 is omitted. Further, in this example, by providing the positioning protrusions 21b at four locations in the circumferential direction, the assembly of the holding member 12 to the blood collection tube holder body 11 is facilitated. Further, in this example, while maintaining an appropriate holding force by the second reinforcing piece 26, the first reinforcing piece 25 is omitted to reduce the insertion resistance at the start of insertion of the vacuum blood collection tubes 3a, 3b, 3c.

[0077] In this way, only one of the first reinforcing piece 25 and the second reinforcing piece 26 may be provided, and by doing so, the holding force by the holding member 12 can be appropriately adjusted. Note that the provision methods of the first reinforcing piece 25 and the second reinforcing piece 26 may be made different for each pressure contact member 22, or both the first reinforcing piece 25 and the second reinforcing piece 26 may be omitted.

[0078] FIG. 9A is an explanatory cross-sectional view showing an enlarged view of the first abutting portion 11d, and FIG. 9B is an explanatory cross-sectional view showing an enlarged view of the second abutting portion 11e. As shown by the phantom line in FIG. 9A, the vacuum blood collection tube 3c is axially positioned by the tip surface of the flange-shaped portion 36 abutting against the stepped portion 11d1. Further, by the outer peripheral surface of the flange-shaped portion 36 abutting against the lower top surface 11d3 on the opening side, the vacuum blood collection tube 3c is radially positioned and the inclination with respect to the blood collection tube holder main body 11 is prevented. Further, even when the vacuum blood collection tube 3c is inclined during insertion, the outer peripheral surface of the flange-shaped portion 36 is guided into a state of abutting against the top surface 11d3 by the inclined portion 11d2.

[0079] As shown by the phantom line in FIG. 9B, similarly in the second abutting portion 11e, the vacuum blood collection tube 3c is axially positioned by the tip surface of the flange-shaped portion 36 abutting against the stepped portion 11e1, and by the outer peripheral surface of the flange-shaped portion 36 abutting against the lower top surface 11e3 on the opening side, radial positioning and prevention of inclination with respect to the blood collection tube holder main body 11 are achieved. Then, by the locking portion 11f locking to the flange-shaped portion 36, the vacuum blood collection tube 3c is prevented from falling off.

[0080] In this example, the locking portion 11f is provided so as to further protrude from the top surface 11e3. Further, the locking portion 11f is configured in a trapezoidal shape having a parallel surface 11f1 provided at the top so as to be substantially parallel to the central axis, an opening-side inclined surface 11f2 whose protruding amount gradually decreases toward the opening side on the opening side of the parallel surface 11f1, and a bottom-side inclined surface 11f3 whose protruding amount gradually decreases toward the bottom 13 side on the bottom 13 side of the parallel surface 11f1. The opening-side inclined surface 11f2 is provided so as to be connected to the inner peripheral surface and has the same function as the inclined portion 11d2 of the first abutting portion 11d.

[0081] When inserting the vacuum blood collection tube 3c, it is necessary to elastically deform the blood collection tube holder body 11 and the flange-shaped portion 36 so that the locking portion 11f is overcome by the flange-shaped portion 36. Therefore, the insertion resistance increases when the corner portion 36a on the tip side (bottom 13 side) of the flange-shaped portion 36 abuts against the opening-side inclined surface 11f2, and decreases when the corner portion 36b on the proximal end side (opening side) of the flange-shaped portion 36 abuts against the bottom-side inclined surface 11f3. Then, the user can grasp by the sense of the fingertip alone that the vacuum blood collection tube 3c is disposed at an appropriate position by feeling the decrease from this increase in the insertion resistance as a click feeling.

[0082] In this example, by providing the parallel surface 11f1 between the opening-side inclined surface 11f2 and the bottom-side inclined surface 11f3, this click feeling is appropriately generated. Specifically, when the parallel surface 11f1 is not provided, after the corner portion 36a on the tip side of the flange-shaped portion 36 crosses the opening-side inclined surface 11f2, the flange-shaped portion 36 is clamped at the corner between the opening-side inclined surface 11f2 and the bottom-side inclined surface 11f3 of the four locking portions 11f, and the vacuum blood collection tube 3c becomes likely to tilt with respect to the blood collection tube holder body 11. If the vacuum blood collection tube 3c is tilted with respect to the blood collection tube holder body 11, the corner portion 36b on the proximal end side of the flange-shaped portion 36 may abut against the bottom-side inclined surface 11f3 at different timings for each of the four locking portions 11f, and as a result, a continuous click feeling is generated, making it difficult for the user to grasp the appropriate arrangement of the vacuum blood collection tube 3c.

[0083] On the other hand, by providing the parallel surface 11f1 between the opening-side inclined surface 11f2 and the bottom-side inclined surface 11f3, it becomes possible to prevent the tilt of the vacuum blood collection tube 3c after the corner portion 36a on the tip side of the flange-shaped portion 36 crosses the opening-side inclined surface 11f2. Therefore, the corner portion 36b on the proximal end side of the flange-shaped portion 36 can be made to abut against the bottom-side inclined surface 11f3 of the four locking portions 11f at substantially the same timing, generating an appropriate click feeling.

[0084] In this example, further, the distance D1 between the step portion 11e1 and the end on the bottom 13 side (the boundary with the top surface 11e3) of the bottom side inclined surface 11f3 is set to be smaller than the axial dimension D2 of the flange-shaped portion 36 (in other words, the bottom side inclined surface 11f3 is provided so as to protrude from the top surface 11e3 at a position separated from the step portion 11e1 by the distance D2), thereby making it possible to set the inclination angle θ with respect to the central axis of the bottom side inclined surface 11f3 to be as small as about 5°. By setting the distance D1 to be smaller than the axial dimension D2 of the flange-shaped portion 36, the flange-shaped portion 36 can be sandwiched between the step portion 11e1 and the bottom side inclined surface 11f3, and the pressing force of the bottom side inclined surface 11f3 against the flange-shaped portion 36 can be increased. Therefore, even when the inclination angle θ is set small, it is possible to surely prevent the vacuum blood collection tube 3c from falling off.

[0085] And by setting the inclination angle θ small, the resistance when removing the vacuum blood collection tube 3c from the blood collection tube holder 1 can be reduced. That is, according to the locking portion 11f of this example, it is possible to achieve both prevention of the vacuum blood collection tube 3c from falling off and ease of removal.

[0086] Note that the shape of the locking portion 11f is not limited to such a trapezoidal shape, and other appropriate shapes such as a pyramid shape, a dome shape, or a prism shape may be used. Also, for example, when the click feeling is not emphasized, the locking portion 11f may be configured in a shape without the parallel surface 11f1. Further, the opening side inclined surface 11f2 and the bottom side inclined surface 11f3 may be composed of curved surfaces. Needless to say, the inclination angles of the opening side inclined surface 11f2 and the bottom side inclined surface 11f3 are not particularly limited.

[0087] Thus, even when the first contact portion 11d and the second contact portion 11e are provided on the inner peripheral surface of the blood collection tube holder main body 11, and the locking portion 11f is provided on the second contact portion 11e, it is possible to stably hold the seal type vacuum blood collection tube 3c and prevent it from falling off. Also, in this case as well, it goes without saying that the overcap type vacuum blood collection tube 3a and the rubber stopper type vacuum blood collection tube 3b can be held and prevented from falling off in the same manner as in the example shown in FIG. 1.

[0088] Note that the number of the first contact portion 11d and the second contact portion 11e is not particularly limited, and any number can be adopted. Further, only the second contact portion 11e may be provided on the inner peripheral surface of the blood collection tube holder body 11, or only the first contact portion 11d may be provided on the inner peripheral surface of the blood collection tube holder body 11, and the locking portion 27 may be provided on the pressure contact member 22. Further, the first contact portion 11d and the second contact portion 11e may be configured such that the higher top surfaces 11d4 and 11e4 contact the outer peripheral surfaces of the vacuum blood collection tubes 3a and 3b. Further, the locking portion 11f may be provided separately from the second contact portion 11e on the inner peripheral surface of the blood collection tube holder body 11.

[0089] FIG. 10 is a view showing an example in the case where the tongue-shaped protruding piece 20 is omitted in the example shown in FIG. 6. In this example, the additional recess 11i1 of the second recess 11i is omitted together with the tongue-shaped protruding piece 20. Then, while appropriately adjusting the dimensions and shape of the second reinforcing piece 26, when the pressure contact member 22 swings and deforms due to the insertion of the vacuum blood collection tubes 3a, 3b, and 3c, the tip of the bent portion 24 contacts the bottom surface of the second recess 11i so that sufficient holding force can be obtained. Thus, when sufficient holding force can be obtained only by the holding member 12, the tongue-shaped protruding piece 20 may be omitted.

[0090] Note that instead of making the tip of the bent portion 24 contact the bottom surface of the second recess 11i, sufficient holding force may be obtained by adding the first reinforcing piece 25 to the pressure contact member 22. Further, the second recess 11i may be configured such that the tip of the bent portion 24 contacts a portion other than the second recess 11i on the inner peripheral surface of the blood collection tube holder body 11. Further, the locking portion 11f may be provided separately from the second contact portion 11e on the inner peripheral surface of the blood collection tube holder body 11, or may be provided on the pressure contact member 22. Further, although not shown, the tongue-shaped protruding piece 20 may be omitted in the example shown in FIG. 1.

[0091] FIG. 11 shows an example of a case where a female connector 15b is provided at the tip of the needle base 15 instead of the male connector 15a. As shown in FIG. 11, the syringe 6 used for blood collection generally has a male connector 61 at its tip for connecting the needle base (not shown) of the blood collection needle tube. Thus, by providing the female connector 15b on the needle base 15, it becomes possible to directly connect the male connector 61 of the syringe 6 to the blood collection tube holder 1.

[0092] Therefore, according to the blood collection tube holder 1 shown in FIG. 11, the blood sample collected with the syringe 6 can be safely dispensed into the vacuum blood collection tubes 3a, 3b, and 3c. When dispensing by inserting the blood collection needle tube connected to the syringe 6 through the vacuum blood collection tubes 3a, 3b, and 3c, there is a risk that the blood collection needle tube connected to the syringe 6 may accidentally stab the user's finger or the like. However, by using the blood collection tube holder 1 shown in FIG. 11, such a needle stick risk can be reduced.

[0093] Note that the female connector 15b may be provided on the protruding portion 14 separately from the needle base 15. Also, in the example shown in FIG. 11, a male thread 15b1 is provided on the outer periphery of the female connector 15b, but the male thread 15b1 may be omitted. Needless to say, the female connector 15b may be provided on either the blood collection tube holder 1 shown in FIG. 1 or the blood collection tube holder 1 shown in FIG. 6.

[0094] FIG. 12 shows an example of a case where a connector 7 is provided in the blood collection kit 2 instead of the blood collection tool 5. The connector 7 in this example includes a flexible tube 71 of a predetermined length, a female connector 72 (the holder-side connector of the present invention) provided at one end of the flexible tube 71, and a female connector 73 (the syringe-side connector of the present invention) provided at the other end.

[0095] According to the blood collection kit 2 shown in FIG. 12, by connecting the female connector 72 to the male connector 15a of the blood collection tube holder 1 and connecting the female connector 73 to the male connector 61 of the syringe 6, the syringe 6 can be connected to the blood collection tube holder 1 via the connector 7. Therefore, similar to the blood collection tube holder 1 shown in FIG. 11, the blood sample collected with the syringe 6 can be safely dispensed into the vacuum blood collection tubes 3a, 3b, and 3c. Further, according to the blood collection kit 2 shown in FIG. 12, since the degree of freedom in the relative position of the blood collection tube holder 1 and the syringe 6 is increased by the connector 7, dispensing can be performed more easily and safely.

[0096] Note that the length of the flexible tube 71 is not particularly limited, but is preferably 10 to 300 mm. Further, the connector 7 may include a rigid tube, pipe, or the like instead of the flexible tube 71, or may be composed of a single member provided with female connectors 72 and 73 at both ends.

[0097] Needless to say, the blood collection kit 2 shown in FIG. 12 may be configured from any of the blood collection tube holders 1 shown in FIG. 1 and the blood collection tube holder 1 shown in FIG. 6 and the connector 7. Further, the blood collection kit 2 may include a blood collection tube holder 1 provided with the female connector 15b shown in FIG. 11 and a connector 7 provided with a male connector connectable to the female connector 15b at one end of the flexible tube 71 and a female connector 73 at the other end.

[0098] As described above, the embodiments of the present invention have been described. However, the blood collection tube holder and the blood collection kit of the present invention are not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

[0099] For example, the shapes and arrangements of the respective parts of the blood collection tube holder 1, the blood collection tool 5, and the connector 7 are not limited to the shapes and arrangements shown in the above embodiments, and appropriate shapes and arrangements can be adopted. Further, the materials constituting the respective parts of the blood collection tube holder 1, the blood collection tool 5, and the connector 7 are not particularly limited, and appropriate materials can be adopted.

[0100] In addition, the actions and effects shown in the above-described embodiments are merely a list of the most preferable actions and effects resulting from the present invention, and the actions and effects according to the present invention are not limited thereto.

Description of Reference Numerals

[0101] 1... Blood collection tube holder, 2... Blood collection kit, 3a, 3b, 3c... Vacuum blood collection tubes, 5... Blood collection tool, 6... Syringe, 7... Connector, 11... Blood collection tube holder main body, 11d... First abutting portion, 11e... Second abutting portion, 11f, 27... Locking portions, 11g... Third abutting portion, 12... Holding member, 13... Bottom, 15... Needle base, 15b, 53, 72... Female connectors, 16... Hollow portion, 17... Needle tube, 18... Rubber sleeve, 21... Fitting member, 22... Pressing member, 51... Blood collection needle tube.

Claims

1. A blood collection tube holder for holding a vacuum blood collection tube, a cylindrical blood collection tube holder body into which the vacuum blood collection tube is inserted; A needle tube attached to a tip end of the blood collection tube holder body and configured to puncture the vacuum blood collection tube; a pressure contact member that is formed of a plurality of elastically deformable thin plate members provided in the blood collection tube holder body and that elastically deforms in a radial direction of the blood collection tube holder body to press a side surface of the vacuum blood collection tube; Equipped with A third contact portion is formed at the tip end of the blood collection tube holder body, the third contact portion being in contact with the tip end surface of the vacuum blood collection tube to stop the vacuum blood collection tube from entering the tip end of the blood collection tube; A blood collection tube holder, wherein the pressure contact members and the third contact portions are alternately arranged in a plurality of positions along the circumferential direction of the blood collection tube holder body.

2. 2. The blood collection tube holder according to claim 1, wherein the distance between the pressure contact member and the third contact portion is constant along the circumferential direction of the blood collection tube holder body, and the pressure contact member is disposed midway between the two third contact portions.

3. 3. The blood collection tube holder according to claim 1, wherein the third contact portion is a rib provided upright on an inner surface of a bottom portion of the blood collection tube holder body.

Images