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 technology]

[0002] Conventionally, blood collection kits are used when collecting blood samples for blood tests, etc. Blood collection kits collect blood from a living body using a blood collection device such as a so-called winged needle (winged needle) equipped with a needle tube to be inserted into a blood vessel, and store the collected blood sample in a vacuum blood collection tube held in a blood collection tube holder. The kit includes the blood collection device and a blood collection tube holder that is connected to the blood collection device via a connector and holds the vacuum blood collection tube.

[0003] As the blood collection tube holder, for example, one that includes a hollow, bottomed, cylindrical blood collection tube holder body and a holding member that is fitted into the inner surface of the blood collection tube holder body and detachably holds a blood collection tube such as a syringe that is 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 hub 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. Furthermore, 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 toward the inner circumferential surface of the blood collection tube holder body while pressing against the outer circumferential surface of the blood collection tube due to their own elasticity. As a result, the blood collection tube is held by the pressure contact members pressing against the outer circumferential surface of the blood collection tube while the collected blood sample is being introduced into the blood collection tube, preventing the blood collection tube from falling out of the hollow portion of the blood collection tube holder body. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 5-300899 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the blood collection tube holder described in Patent Document 1 has the disadvantage that, when the blood collection tube is inserted into the hollow portion of the blood collection tube holder body, the elastic sheath covering the needle tube is pressed against the tip of the blood collection tube and compressed, and when the blood collection tube tries to return to its original shape due to its own elasticity, the blood collection tube is pressed against the elastic sheath and may fall off the blood collection tube holder body.

[0007] An object of the present invention is to eliminate such inconvenience and to provide a blood collection tube holder in which the blood collection tube will not fall off even when pressed against the compressed elastic sheath. [Means for solving the problem]

[0008] In order to achieve this object, the blood collection tube holder of the present invention comprises a blood collection tube holder body in the form of a hollow, bottomed cylinder, and a holding member fitted to the inner circumferential surface of the blood collection tube holder body to detachably hold a blood collection tube inserted into the hollow part of the blood collection tube holder body, the blood collection tube holder body comprising a needle hub provided at the bottom, a hollow needle tube supported by the needle hub and protruding into the hollow part of the blood collection tube holder body, and an elastic sheath covering the needle tube over its entire length, and the holding member comprises a hollow, tubular fitting member fitted to the inner circumferential surface of the blood collection tube holder body, and an elastic sheath that fits over the blood collection tube holder body from the fitting member. - A blood collection tube holder comprising a plurality of pressure-contact members that protrude into a hollow portion of a body, that oscillate toward the inner peripheral surface 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, and that press against the outer peripheral surface of the blood collection tube by their own elastic force, wherein the blood collection tube holder body has a plurality of contact portions that position the blood collection tube in the axial direction of the blood collection tube holder body by contacting the blood collection tube inserted into the hollow portion of the blood collection tube holder body from the bottom side, and the contact portions are arranged between the pressure-contact members in the circumferential direction of the blood collection tube holder body.

[0009] The blood collection kit of the present invention is characterized by comprising the blood collection tube holder of the present invention, a blood collection needle tube to be inserted into a blood vessel, and a blood collection tool having a holder-side connector that can be connected to the blood collection tube holder body so that the blood collection needle tube and the needle tube are in communication.

[0010] According to the blood collection tube holder and 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, the multiple 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 toward the inner circumferential surface of the blood collection tube holder body. At this time, when swung as described above, the pressure contact members attempt to return to their original shape due to their own elasticity, and can press against the outer circumferential surface of the blood collection tube to hold the blood collection tube.

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

[0012] In contrast, in the blood collection tube holder and blood collection kit of the present invention, the blood collection tube holder body is provided with the abutment portion that abuts against the blood collection tube from the bottom side to position it, so that the blood collection tube can be positioned at an appropriate position in the axial direction of the blood collection tube holder body, and even when the blood collection tube is pressed against the compressed elastic sheath body, the blood collection tube can be prevented from falling off.

[0013] In the blood collection tube holder of the present invention, the abutting portions and the pressure members are preferably arranged alternately in the circumferential direction of the blood collection tube holder body, thereby enabling the blood collection tube to be positioned appropriately in the axial direction of the blood collection tube holder body and preventing the blood collection tube from tilting.

[0014] In the blood collection tube holder of the present invention, it is preferable that the pressure contact member is disposed midway between the two contact portions in the circumferential direction of the blood collection tube holder body, and that the distance between the pressure contact member and the contact portion in the circumferential direction of the blood collection tube holder body is constant. This allows the blood collection tube to be positioned appropriately in the axial direction of the blood collection tube holder body and prevents the blood collection tube from tilting.

[0015] In the blood collection tube holder of the present invention, the abutment portion is preferably provided so as to protrude from the bottom portion into the hollow portion of the blood collection tube holder body, thereby enabling the blood collection tube to be positioned appropriately in the axial direction of the blood collection tube holder body and preventing the blood collection tube from tilting.

[0016] In the blood collection tube holder of the present invention, the abutment portion is preferably provided so as to protrude from the inner peripheral surface of the blood collection tube holder body toward the hollow portion of the blood collection tube holder body, thereby allowing the blood collection tube to be positioned at an appropriate position in the axial direction of the blood collection tube holder body.

[0017] In the blood collection tube holder of the present invention, the abutment portion is preferably configured as a rib that protrudes from the inner peripheral surface of the blood collection tube holder body toward the central axis of the hollow portion of the blood collection tube holder body and extends from the bottom portion toward the opening in the axial direction of the blood collection tube holder body. This allows the blood collection tube to be positioned at an appropriate position in the axial direction of the blood collection tube holder body.

[0018] In the blood collection tube holder of the present invention, the abutment portion is preferably disposed on the outer circumferential side of the elastic sheath, thereby allowing the blood collection tube to be disposed at an appropriate position in the axial direction of the blood collection tube holder body.

[0019] In the blood collection tube holder of the present invention, the contact portion is preferably disposed on the outer circumferential side of the tip of the pressure contact member, thereby allowing the blood collection tube to be disposed at an appropriate position in the axial direction of the blood collection tube holder body.

[0020] In the blood collection tube holder of the present invention, the blood collection tube holder body may include a connector that can be connected to the syringe so that the syringe and the needle tube communicate with each other. This eliminates the need to pierce the blood collection needle tube connected to the syringe into the blood collection tube when dispensing a blood sample collected with the syringe into the blood collection tube, thereby reducing the risk of needle sticks during dispensing and enabling safe dispensing.

[0021] The blood collection kit of the present invention may also include the blood collection tube holder of the present invention, and a connector including a syringe-side connector connectable to a syringe and a holder-side connector connectable to the blood collection tube holder body so that the syringe connected to the syringe-side connector communicates with the needle. This eliminates the need to pierce the blood collection needle connected to the syringe into the blood collection tube when dispensing a blood sample collected with the syringe into the blood collection tube, thereby reducing the risk of needlestick injury during dispensing and enabling safe dispensing. [Brief explanation of the drawings]

[0022] [Figure 1] FIG. 1 is an explanatory diagram showing an example of the configuration of a blood collection tube holder and a blood collection kit according to the present invention. [Figure 2] FIG. 2 is a perspective view showing a holding member of the configuration example shown in FIG. 1. [Figure 3] 2 is an explanatory cross-sectional view showing a state in which a first blood collection tube is inserted into the blood collection tube holder of the configuration example shown in FIG. 1. FIG. [Figure 4] 2 is an explanatory cross-sectional view showing a state in which a second blood collection tube is inserted into the blood collection tube holder of the configuration example shown in FIG. 1. FIG. [Figure 5] 2 is an explanatory cross-sectional view showing a state in which a third blood collection tube is inserted into the blood collection tube holder of the configuration example shown in FIG. 1. FIG. [Figure 6] FIG. 10 is an explanatory diagram showing another example of the configuration of the blood collection tube holder and blood collection kit of the present invention. [Figure 7] FIG. 7 is an explanatory cross-sectional view showing the blood collection tube holder body of the configuration example shown in FIG. 6. [Figure 8] FIG. 7 is an explanatory cross-sectional view showing a holding member of the configuration example shown in FIG. 6. [Figure 9] 7A is an explanatory cross-sectional view showing an enlarged view of a first contact portion of the configuration example shown in Fig. 6. FIG. 7B is an explanatory cross-sectional view showing an enlarged view of a second contact portion of the configuration example shown in Fig. 6. [Figure 10] FIG. 10 is an explanatory diagram showing another example of the configuration of the blood collection tube holder and blood collection kit of the present invention. [Figure 11] FIG. 10 is an explanatory diagram showing another example of the configuration of the blood collection tube holder of the present invention. [Figure 12] FIG. 10 is an explanatory diagram showing another example of the configuration of the blood collection kit of the present invention. DETAILED DESCRIPTION OF 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 Figure 1, the blood collection tube holder 1 of this embodiment is 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.It comprises a hollow, bottomed, cylindrical blood collection tube holder body 11 and a holding member 12 that detachably holds the vacuum blood collection tube.

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

[0026] In this embodiment, the blood collection needle tube 51 is supported by a hub 54 to which the tip of the flexible tube 52 is connected, and a cylindrical protector 55 is attached to this hub 54. After the blood collection needle tube 51 is removed from the blood vessel, the protector 55 is slid toward the tip to cover the tip of the blood collection needle tube 51. A winged member 56 is fixed to the protector 55 for stably fixing the protector to the skin of a living body, etc. In other words, the blood collection device 5 of this embodiment is composed of a winged needle (winged needle) such as a medical needle with a protector disclosed in Japanese Patent Laid-Open Publication No. 2017-196060, which is owned by the present applicant.

[0027] The blood collection tube holder body 11 has a protruding portion 14 that protrudes from the center of the bottom portion 13 toward the tip side, and a needle hub 15 that is screwed onto the protruding portion 14. The needle hub 15 supports a hollow needle tube 17 with a sharp tip that protrudes into a hollow portion 16 of the blood collection tube holder body 11, and has a rubber sleeve 18 as an elastic sheath that covers the needle tube 17 over its entire length, while also having a hollow portion 19 on the tip side that communicates with the needle tube 17. In addition, a male connector 15a is provided at the tip end of the needle hub 15.

[0028] The blood collection tube holder body 11 also has a plurality of tongue-shaped protruding pieces 20 protruding 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 locations at equal intervals in the circumferential direction of the bottom portion 13. In this embodiment, the blood collection tube holder body 11 is made of synthetic resin (polypropylene) except for the needle tube 17 and the rubber sleeve 18. The needle tube 17 is made of metal (stainless steel), and the rubber sleeve is made of synthetic rubber (isoprene rubber).

[0029] The blood collection tube holder body 11 can be connected to the blood collection tool 5 by fitting the male connector 15a of the needle hub 15 into the female connector 53, and at this time, the flexible tube 52 and the needle tube 17 communicate with each other through the hollow portion 19 of the needle hub 15, thereby connecting the blood collection needle tube 51 and the needle tube 17. The male connector 15a of the needle hub 15 can be fitted into the female connector 53 by, for example, a luer taper. In this embodiment, by inserting the male connector 15a of the needle hub 15 into the female connector 53, the male luer taper on the outer circumferential surface of the male connector 15a fits into the female luer taper on the inner circumferential surface of the female connector 53.

[0030] The blood collection tube holder body 11 has a plurality of anti-slip ribs 11a that are continuous (extending) in the axial direction on its outer peripheral surface, and a flange 11b on its opening end (base end). A peripheral wall 11c that protrudes toward the tip is provided on the periphery of the outer surface (tip side surface) of the bottom 13 of the blood collection tube holder body 11. In this embodiment, the axial dimension of the hollow portion 16 is shortened to facilitate one-handed insertion and removal of a vacuum blood collection tube (not shown), while the provision of the peripheral wall 11c extends the outer peripheral surface of the blood collection tube holder body 11 in the axial direction, improving grippability.

[0031] The holding member 12 includes a hollow cylindrical fitting member 21 that is fitted into the inner circumferential surface of the blood collection tube holder 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 body 11. In this embodiment, as shown in FIG. 2 , the pressure contact members 22 are provided at four locations at equal intervals in the circumferential direction of the fitting member 21 in correspondence with the tongue-shaped protruding pieces 20.

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

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

[0034] The arm portion 23 and the bent portion 24 have an arc-shaped cross section, and the inner surface is a concave surface that follows a circumference centered on the central axis. Furthermore, the corners at both ends in the width direction of the inner surface of the arm portion 23 and the bent portion 24 are appropriately rounded. Furthermore, the tip side of the outer surface of the bent portion 24 is provided with an inclined surface 24a whose thickness gradually decreases toward the tip, and the corners at the tip of this inclined surface 24a are appropriately rounded.

[0035] The first reinforcing piece 25 is a wide rib-like member provided across the trapezoidal portion 21a and the arm portion 23 on the inner surface that is the valley side of the bent portion between the trapezoidal portion 21a and the arm portion 23. Similarly, the second reinforcing piece 26 is a wide rib-like member provided across the arm portion 23 and the bent portion 24 on the outer surface that is the valley side of the bent portion between the arm portion 23 and the bent portion 24. The locking portion 27 is a semi-cylindrical protrusion that protrudes from the inner surface on the base end side of the bent portion 24.

[0036] The outer peripheral surface of the fitting member 21 is provided with rib-like positioning protrusions 21b that are continuous (extending) in the axial direction at two circumferential locations, and a ring-shaped retaining protrusion 21c that is continuous in the circumferential direction. The positioning protrusions 21c are engaged with recesses provided on the inner peripheral surface of the blood collection tube holder body 11, and are intended to position the holding member 12 in the circumferential direction relative to the blood collection tube holder body 11. The retaining protrusions 21c are also engaged with recesses provided on the inner peripheral surface of the blood collection tube holder body 11, and are intended to position the holding member 12 in the axial direction relative to the blood collection tube holder body 11 and prevent the holding member 12 from falling off from the blood collection tube holder body 11.

[0037] In this embodiment, the holding member 12 is made of synthetic resin (polypropylene). The number of positioning protrusions 21b is not particularly limited, and they may be provided in only one location, or in 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 this embodiment, the male connector 15a of the needle hub 15 is fitted into the female connector 53 to connect to the blood collection tool 5. In this state, 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 into the blood collection tube holder main body 11. Here, the vacuum blood collection tube 3a is an overcap type and comprises a blood collection tube main body 31 made of glass, hard plastic, or the like, which is a hollow, bottomed tubular body; a rubber cap 32 that closes the open end of the blood collection tube main body 31; and an outer sleeve tube (overcap) 33 made of synthetic resin, which is a hollow, bottomed tubular body that protects the blood collection tube main body 31 and the rubber cap 32. The outer sleeve tube 33 is fitted onto the rubber cap 32 and has an opening at the bottom that exposes a portion of the rubber cap 32.

[0040] When a vacuum blood collection tube 3a is inserted into the inner periphery 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 body 11 is pressed by the vacuum blood collection tube 3a, causing it to swing and deform from the state shown by the imaginary line in Fig. 3 toward the inner periphery of the blood collection tube holder body 11. At this time, the arm portion 23 and the bent portion 24 of the pressure contact member 22 are approximately linear in cross section as a result of being pressed by the vacuum blood collection tube 3a, and they attempt to return to their original state (the state shown by the imaginary line in Fig. 3) due to their own elasticity, and are pressed against the outer periphery 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 comes into contact with the rubber sleeve 18, and further presses the rubber sleeve 18 toward the needle hub 15. 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 an accordion-like shape between the rubber cap 32 and the needle hub 15.

[0042] When the needle tube 17 is inserted into the vacuum blood collection tube 3a, the needle tube 17 is connected to the blood collection needle tube 51 via the hollow portion 19 of the needle base 15 and the flexible tube 52, so that the blood sample collected by the blood collection needle tube 51 of the blood collection device 5 is introduced into the vacuum blood collection tube 3a via the flexible tube 52 and the needle tube 17.

[0043] At this time, the rubber sleeve 18, which has been compressed as described above and is folded in an accordion-like shape between the rubber cap 32 and the needle base 15, will attempt to return to its original shape by its own elastic force, pressing the vacuum blood collection tube 3a toward the opening side (the engaging member 21 side), which raises the concern that the vacuum blood collection tube 3a, which is held by the pressure of the pressure-contact member 22, may fall off from the blood collection tube holder main body 11.

[0044] However, in the blood collection tube holder 1 of this embodiment, as a result of being pressed by the vacuum blood collection tube 3a as described above, the arm portion 23 and the bent portion 24 of the pressure contact member 22 are generally linear in cross section, and the tip of the bent portion 24 comes into contact with the tongue-shaped protruding piece 20, causing the tongue-shaped protruding piece 20 to swing and deform toward the inner circumferential surface of the blood collection tube holder body 11. When swung as described above, the tongue-shaped protruding piece 20 attempts to return to its original shape due to its own elastic force, and presses the tip of the bent portion 24 toward the outer circumferential surface of the blood collection tube.

[0045] As a result, in addition to the elastic force of the pressure contact member 22 itself, the pressing force of the tongue-shaped protruding piece 20 assists in the pressure contact against the outer peripheral surface of the vacuum blood collection tube 3a, allowing the vacuum blood collection tube 3a to be held with stronger force. Therefore, even when the vacuum blood collection tube 3a is pressed toward the opening side by the compressed rubber sleeve 18, the vacuum blood collection tube 3a can be prevented from falling off from the blood collection tube holder body 11.

[0046] In the blood collection tube holder 1 of this embodiment, once a predetermined amount of blood sample has been 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 shape as the vacuum blood collection tube 3a is removed, and covers the needle tube 17 over its entire length, preventing the blood sample from leaking out of the needle tube 17.

[0047] Furthermore, in the blood collection tube holder 1 of this embodiment, the male connector 15a of the needle hub 15 is fitted into the female connector 53 to connect to the blood collection tool 5, and then, 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 into 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 which is a hollow, bottomed cylindrical body made of glass, hard plastic, or the like, and a rubber cap 32 which closes the open end of the blood collection tube main body 31.

[0048] The blood collection tube holder 1 of this embodiment can prevent the vacuum blood collection tube 3b with a rubber stopper cap from falling off from the blood collection tube holder body 11 even when the vacuum blood collection tube 3b is pressed backward by the compressed rubber sleeve 18, just as in the case of the overcap type vacuum blood collection tube 3a.

[0049] Furthermore, in the blood collection tube holder 1 of this embodiment, the male connector 15a of the needle hub 15 is mated with the female connector 53 to connect to the blood collection tool 5. For example, as shown in FIG. 5 , a vacuum blood collection tube 3c may be inserted into the inner periphery of the holding member 12 fitted into the blood collection tube holder body 11. Here, the vacuum blood collection tube 3c is a sealed type and includes a blood collection tube body 31 formed of a hollow, bottomed tubular body made of glass, hard plastic, or the like, and a sealing member 34 that closes the open end of the blood collection tube body 31. The sealing member 34 is configured, for example, by a sheet made of aluminum film with a rubber valve body 35 in the center. The blood collection tube body 31 also includes a flange-like portion 36 that extends outward from the open end. The flange-like portion 36 may also be configured as a separate member fixed to the blood collection tube body 31.

[0050] The blood collection tube holder 1 of this embodiment can prevent the vacuum blood collection tube 3c from falling off from the blood collection tube holder body 11, even when the vacuum blood collection tube 3c is pressed backward by the compressed rubber sleeve 18, in the same way as the overcap type vacuum blood collection tube 3a and the rubber stopper cap type vacuum blood collection tube 3b. Furthermore, since the seal type vacuum blood collection tube 3c includes the flange-like portion 36, the flange-like portion 36 can be locked with the locking portion 27 of the bent portion 24, and the vacuum blood collection tube 3c can be more reliably prevented from falling off from the blood collection tube holder body 11.

[0051] In this embodiment, by providing the blood collection tube holder body 11 with the tongue-shaped protruding piece 20, it is possible to generate an appropriate holding force without increasing the thickness or size of the entire holding member 12. As a result, it is possible to configure the blood collection tube holder body 11 compactly while reliably preventing the vacuum blood collection tubes 3a, 3b, and 3c from falling off, so that the ease of inserting and removing the vacuum blood collection tube 3a and the ability to grip the blood collection tube holder body 11 are not hindered.

[0052] Furthermore, in this embodiment, the bending portion 24 comes into contact with the tongue-shaped protruding piece 20 after the vacuum blood collection tubes 3a, 3b, and 3c have been inserted to a certain extent, and before that, the only elastic force that resists insertion is the elastic force of the holding member 12. Therefore, the vacuum blood collection tubes 3a, 3b, and 3c can be easily inserted while reliably preventing them from falling out.

[0053] Furthermore, in this embodiment, by providing first reinforcing piece 25 and second reinforcing piece 26 at the bent portion that is deformed so as to be pushed open by the insertion of vacuum blood collection tubes 3a, 3b, and 3c, it is possible to configure holding member 12 more compactly while generating an appropriate holding force. Also, by providing locking portion 27 on holding member 12, it is possible to stably hold and prevent even seal-type vacuum blood collection tube 3c, which is prone to tilting relative to blood collection tube holder body 11 because the diameter of the portion other than flange-shaped portion 36 is relatively small.

[0054] In this embodiment, an inclined surface 24a is provided on the tip side of the outer surface of the bent portion 24, and the tip of this inclined surface 24a is rounded, thereby ensuring smooth contact with the tongue-shaped protruding piece 20 and smooth deformation of the holding member 12 and the tongue-shaped protruding piece 20 after contact. Furthermore, by rounding both ends in the width direction of the inner surfaces of the arm portion 23 and the bent portion 24, labels or the like attached to the outer peripheral surfaces of the vacuum blood collection tubes 3a, 3b, 3c are prevented from getting caught on the arm portion 23 or the bent portion 24 and being peeled off or damaged.

[0055] The tongue-shaped protruding piece 20 may be configured so that its tip contacts or does not contact the inner circumferential surface of the blood collection tube holder body 11 when it is swung and deformed by the insertion of the vacuum blood collection tubes 3a, 3b, 3c. Similarly, the pressure contact member 22 may be configured so that any portion thereof contacts or does not contact the inner circumferential surface of the blood collection tube holder body 11 when it is swung and deformed by the insertion of the vacuum blood collection tubes 3a, 3b, 3c.

[0056] The blood collection tube holder 1 may also be provided with, for example, a rib-like contact portion (not shown) that extends in the length direction (axial direction) and contacts the outer circumferential surfaces of the vacuum blood collection tubes 3a, 3b, and 3c on the inner circumferential surface of the blood collection tube holder body 11. The blood collection tube holder 1 may also be provided with, for example, a groove-like recess (not shown) that extends in the length direction and accommodates (avoids interference with) the rockingly deformed pressure contact member 22 on the inner circumferential surface of the blood collection tube holder body 11.

[0057] The provision of such a contact portion prevents the vacuum blood collection tubes 3a, 3b, and 3c from tilting relative to the blood collection tube holder body 11, allows the needle tube 17 to properly penetrate the vacuum blood collection tubes 3a, 3b, and 3c, and enables the vacuum blood collection tubes 3a, 3b, and 3c to be stably held. Furthermore, the provision of such a recess allows the outer diameter of the blood collection tube holder body 11 to be reduced, improving gripping and operability, while still enabling the vacuum blood collection tubes 3a, 3b, and 3c to be securely held by the holding member 12. Even when such a recess is provided, the swing-deformed tongue-shaped protruding piece 20 or the pressure contact member 22 may or may not contact the bottom surface of the recess.

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

[0059] Furthermore, the needle hub 15 may be configured integrally with the protruding portion 14. Furthermore, the male connector 15a may be provided on the protruding portion 14 separately from the needle hub 15. Furthermore, the male connector 15a may be provided with a locking member provided with a female screw. Furthermore, instead of the male connector 15a, a blood collection needle tube to be inserted into a blood vessel may be provided on the needle hub 15.

[0060] Furthermore, in the blood collection kit 2, the blood collection tool 5 may be something other than a butterfly needle, and may be connected to the blood collection tube holder body 11 without the flexible tube 52. Furthermore, the blood collection tool 5 may not be provided with the flexible tube 52, and may be connected to the blood collection tube holder body 11 via an extension tube equipped with an appropriate connector.

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

[0062] Next, we will explain other configuration examples of the blood collection tube holder 1 and the blood collection kit 2. In the following explanation, the same components as those shown in Figures 1 to 5 will be given the same reference numerals and detailed explanations will be omitted.

[0063] 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 a 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 pressure contact member 22. As shown in FIG. 6, the blood collection tube holder 1 of this example is part of a blood collection kit 2 that includes a blood collection tool 5, similar to the example shown in FIG.

[0064] 7 is an explanatory cross-sectional view of the blood collection tube holder body 11 in the example shown in FIG. 7. Note that the needle hub 15, needle tube 17, and rubber sleeve 18 are omitted from FIG. 7. As shown in FIG. 7, the first contact portion 11d and the second contact portion 11e are configured as ribs that protrude toward the central axis on the inner peripheral surface of the blood collection tube holder body 11 and are continuous (extending) in the axial direction from the bottom portion 13 toward the opening side. 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 contact portion 11d is configured with a stepped shape with a large protrusion on the bottom 13 side, and a step portion 11d1 is provided in the middle portion. The opening-side end of the first contact portion 11d is provided with an inclined portion 11d2 that gradually decreases in protrusion toward the opening and connects to the inner circumferential surface. Similarly, the second contact portion 11e is configured with a stepped shape with a large protrusion on the bottom 13 side, and a step portion 11e1 is provided in the middle portion. The opening-side end of the second contact portion 11e is provided with a locking portion 11f that locks onto the flange portion 36 of the vacuum blood collection tube 3c.

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

[0067] Furthermore, in this example, third abutment portions 11g, which abut against the tip surfaces of the vacuum blood collection tubes 3a, 3b to position the vacuum blood collection tubes 3a, 3b in the axial direction, are provided at four locations on the inner surface of the bottom portion 13. These third abutment portions 11g protrude toward the opening side and, when viewed from the opening side, are composed of four arc-shaped protrusions centered on the central axis of the hollow portion 16. By providing such third abutment portions 11g, the vacuum blood collection tubes 3a, 3b can be positioned at appropriate positions in the axial direction and tilting of the vacuum blood collection tubes 3a, 3b after the needle tube 17 has penetrated them can be suppressed.

[0068] Furthermore, in this example, a first recess 11h that accommodates the portion of the holding member 12 other than the trapezoidal portion 21a of the fitting member 21, and a second recess 11i that accommodates the trapezoidal portion 21a of the fitting member 21 and accommodates at least a portion of the swung pressure contact member 22 and the tongue-shaped protruding piece 20 (avoiding interference) are provided on the inner peripheral surface of the blood collection tube holder body 11. As described above, by providing such first recess 11h and second recess 11i, the outer diameter of the blood collection tube holder body 11 can be reduced, thereby improving gripping and operability. Furthermore, 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, and therefore the elastic force of the pressure contact member 22 can be made greater than before, thereby generating sufficient holding force.

[0069] The first recess 11h is configured as a groove that is continuous (extending) in the circumferential direction at the open end of the inner circumferential surface of the blood collection tube holder body 11. A positioning recess 11h1 that accommodates the positioning protrusion 21c of the holding member 12 and a retaining recess 11h2 that accommodates the retaining protrusion 21c of the holding member 12 are provided in corresponding positions on the bottom surface of the first recess 11h.

[0070] The second recess 11i is configured as a groove extending in the axial direction from the first recess 11h toward the bottom 13 at a position corresponding to the pressure contact member 22 on the inner circumferential surface of the blood collection tube holder body 11. Configuring the second recess 11i in this manner increases the degree of freedom in designing the arm portion 23 and the fitting member 21 that supports it, to which a large moment is applied when the vacuum blood collection tubes 3a, 3b, and 3c are swung during insertion, thereby increasing the elastic force of the pressure contact member 22 and more reliably preventing the vacuum blood collection tubes 3a, 3b, and 3c from falling off. In addition, an additional recess 11i1 whose depth is increased in correspondence with the tongue-shaped protruding piece 20 is provided on the bottom 13 side of the bottom surface of the second recess 11i.

[0071] The depth of the first recess 11h and the second recess 11i is not particularly limited, but it is preferable that the step between the inner surface of the blood collection tube holder main body 11 and the inner surface of the engaging member 21 is small, and it is more preferable that the depth is such that the inner surface and the inner surface of the engaging member 21 are flush with each other.

[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 affixed to the outer peripheral surfaces of the vacuum blood collection tubes 3a, 3b, and 3c and the seal member 34 of the seal-type vacuum blood collection tube 3c from getting caught on the step and being peeled off or damaged when the vacuum blood collection tubes 3a, 3b, and 3c are inserted or removed.

[0073] It is also possible to provide only one of the first recess 11h and the second recess 11i. Alternatively, the first recess 11h may include only the positioning recess 11h1 and the retaining recess 11h2. Alternatively, the second recess 11i may omit the additional recess 11i1.

[0074] In this example, an inclined surface 20a is provided on the tip side of the inner surface of the tongue-shaped protruding piece 20, the thickness of which gradually decreases towards the tip, and the corners of the tip of this inclined surface 20a are appropriately rounded, so that contact with the retaining member 12 and deformation of the retaining member 12 and the tongue-shaped protruding piece 20 after contact can be made smoother.

[0075] In addition, the protrusion 14 of the blood collection tube holder body 11 is provided with a two-thread female thread 14a that screws into the male thread of the needle base 15, but in this example, the two threads are arranged so that they do not overlap with each other in the axial direction, which makes it possible to simplify the structure of the mold for resin molding.

[0076] 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. Also, in this example, the positioning protrusions 21b are provided at four locations in the circumferential direction, which facilitates assembly of the holding member 12 to the blood collection tube holder body 11. Furthermore, in this example, the second reinforcing piece 26 maintains an appropriate holding force, while the first reinforcing piece 25 is omitted, thereby reducing insertion resistance at the start of insertion of the vacuum blood collection tubes 3a, 3b, and 3c.

[0077] In this way, only one of the first reinforcing piece 25 and the second reinforcing piece 26 may be provided, which makes it possible to appropriately adjust the holding force of the holding member 12. Note that the first reinforcing piece 25 and the second reinforcing piece 26 may be provided in different ways for each pressure contact member 22, or both the first reinforcing piece 25 and the second reinforcing piece 26 may be omitted.

[0078] 9A is an explanatory cross-sectional view showing an enlarged view of the first contact portion 11d, and FIG. 9B is an explanatory cross-sectional view showing an enlarged view of the second contact portion 11e. As shown by the imaginary line in FIG. 9A, the vacuum blood collection tube 3c is positioned in the axial direction when the distal end surface of the flange-shaped portion 36 abuts against the stepped portion 11d1. Furthermore, when the outer peripheral surface of the flange-shaped portion 36 abuts against the lower top surface 11d3 on the opening side, the vacuum blood collection tube 3c is positioned in the radial direction and is prevented from tilting relative to the blood collection tube holder body 11. Furthermore, even if the vacuum blood collection tube 3c is tilted during insertion, the inclined portion 11d2 guides the outer peripheral surface of the flange-shaped portion 36 into abutment against the top surface 11d3.

[0079] 9B, the vacuum blood collection tube 3c is similarly positioned in the axial direction at the second abutment portion 11e by the tip surface of the flange-shaped portion 36 abutting against the stepped portion 11e1, and the outer peripheral surface of the flange-shaped portion 36 abuts against the lower top surface 11e3 on the opening side, thereby positioning the vacuum blood collection tube 3c in the radial direction and preventing tilting with respect to the blood collection tube holder body 11. The locking portion 11f locks onto the flange-shaped portion 36, thereby preventing the vacuum blood collection tube 3c from falling off.

[0080] In this example, locking portion 11f is provided so as to protrude further from top surface 11e3. Locking portion 11f is trapezoidal, 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 protrusion gradually decreases toward the opening on the opening side of parallel surface 11f1, and a bottom-side inclined surface 11f3 whose protrusion gradually decreases toward the bottom 13 on the bottom 13 side of parallel surface 11f1. Opening-side inclined surface 11f2 is provided so as to connect to the inner circumferential surface, and performs the same function as inclined portion 11d2 of first contact portion 11d.

[0081] When inserting the vacuum blood collection tube 3c, the blood collection tube holder body 11 and the flange-shaped portion 36 must be elastically deformed to allow the flange-shaped portion 36 to overcome the locking portion 11f. Therefore, the insertion resistance increases when the corner 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 36b on the base side (opening side) of the flange-shaped portion 36 abuts against the bottom-side inclined surface 11f3. The user feels this decrease in insertion resistance as a clicking sensation, and can know with just their fingertips that the vacuum blood collection tube 3c has been placed in the appropriate position.

[0082] In this example, the clicking sensation is appropriately generated by providing a parallel surface 11f1 between the opening-side inclined surface 11f2 and the bottom-side inclined surface 11f3. Specifically, if the parallel surface 11f1 were not provided, after the tip-side corner 36a of the flange-shaped portion 36 passes over the opening-side inclined surface 11f2, the flange-shaped portion 36 would be clamped at the corners between the opening-side inclined surface 11f2 and the bottom-side inclined surface 11f3 of the four locking portions 11f, making the vacuum blood collection tube 3c more likely to tilt relative to the blood collection tube holder body 11. If the vacuum blood collection tube 3c is tilted relative to the blood collection tube holder body 11, the base-side corner 36b of the flange-shaped portion 36 may abut against the bottom-side inclined surface 11f3 at different times for each of the four locking portions 11f. This continuous clicking sensation may make it difficult for the user to determine the proper placement of the vacuum blood collection tube 3c.

[0083] In contrast, by providing a parallel surface 11f1 between the opening-side inclined surface 11f2 and the bottom-side inclined surface 11f3, it is possible to prevent the vacuum blood collection tube 3c from tilting after the corner 36a on the tip side of the flange-shaped portion 36 passes over the opening-side inclined surface 11f2, and therefore the corner 36b on the base side of the flange-shaped portion 36 can be brought into contact with the bottom-side inclined surfaces 11f3 of the four engagement portions 11f at approximately the same time, producing an appropriate clicking sensation.

[0084] Furthermore, in this example, the distance D1 between the stepped portion 11e1 and the end of the bottom-side inclined surface 11f3 on the bottom 13 side (the boundary with the top surface 11e3) 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 beyond the top surface 11e3 at a position distance D2 from the stepped portion 11e1), which makes it possible to set the inclination angle θ of the bottom-side inclined surface 11f3 with respect to the central axis to a small value of approximately 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 stepped portion 11e1 and the bottom-side inclined surface 11f3, thereby increasing the pressing force of the bottom-side inclined surface 11f3 against the flange-shaped portion 36. Therefore, even when the inclination angle θ is set small, the vacuum blood collection tube 3c can be reliably prevented from falling off.

[0085] Furthermore, by setting the inclination angle θ to a small value, it is possible to reduce the resistance when removing the vacuum blood collection tube 3c from the blood collection tube holder 1. That is, the locking portion 11f of this example can prevent the vacuum blood collection tube 3c from falling off and also facilitate its removal.

[0086] The shape of the locking portion 11f is not limited to this trapezoidal shape, and may be any other suitable shape, such as a pyramid, a dome, or a prism. Furthermore, if the click feeling is not important, for example, the locking portion 11f may be configured in a shape that does not have parallel surfaces 11f1. Furthermore, the opening-side inclined surface 11f2 and the bottom-side inclined surface 11f3 may be configured as curved surfaces. It goes without saying that the inclination angles of the opening-side inclined surface 11f2 and the bottom-side inclined surface 11f3 are not particularly limited.

[0087] In this way, 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 body 11 and the locking portion 11f is provided on the second contact portion 11e, the seal type vacuum blood collection tube 3c can be stably held and prevented from falling off. Needless to say, even in this case, the overcap type vacuum blood collection tube 3a and the rubber stopper cap 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.

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

[0089] 10 is a diagram showing an example in which the tongue-shaped protruding piece 20 is omitted from the example shown in FIG. 6. In this example, the additional recess 11i1 of the second recess 11i is omitted along with the tongue-shaped protruding piece 20. The dimensions and shape of the second reinforcing piece 26 are appropriately adjusted, and when the pressure contact member 22 is oscillated and deformed by the insertion of the vacuum blood collection tubes 3a, 3b, and 3c, the tip of the bent portion 24 is brought into contact with the bottom surface of the second recess 11i, thereby obtaining a sufficient holding force. In this way, when a sufficient holding force can be obtained by the holding member 12 alone, the tongue-shaped protruding piece 20 may be omitted.

[0090] Note that, instead of contacting the tip of the bent portion 24 with the bottom surface of the second recess 11i, a first reinforcing piece 25 may be added to the pressure contact member 22 to obtain sufficient holding force. The second recess 11i may also be configured so that the tip of the bent portion 24 contacts a portion of the inner circumferential surface of the blood collection tube holder body 11 other than the second recess 11i. The locking portion 11f may be provided separately from the second abutting portion 11e on the inner circumferential surface of the blood collection tube holder body 11, or may be provided on the pressure contact member 22. Although not shown, the tongue-shaped protruding piece 20 may be omitted from the example shown in FIG. 1 .

[0091] 11 shows an example in which a female connector 15b is provided at the tip of the needle hub 15 instead of the male connector 15a. As shown in Fig. 11, a syringe 6 used for blood collection generally has a male connector 61 at its tip for connecting to the needle hub (not shown) of a blood collection needle tube. Therefore, by providing the needle hub 15 with the female connector 15b in this way, it becomes possible to directly connect the male connector 61 of the syringe 6 to the blood collection tube holder 1.

[0092] Therefore, with the blood collection tube holder 1 shown in Fig. 11, a blood sample collected with the syringe 6 can be safely dispensed into the vacuum blood collection tubes 3a, 3b, and 3c. When a blood collection needle tube connected to the syringe 6 is passed through the vacuum blood collection tubes 3a, 3b, and 3c to dispense the blood, there is a risk that the blood collection needle tube connected to the syringe 6 may accidentally prick the user's fingers, etc. However, by using the blood collection tube holder 1 shown in Fig. 11, such a needlestick risk can be reduced.

[0093] The female connector 15b may be provided on the protruding portion 14 separately from the needle hub 15. In the example shown in Fig. 11, the 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] 12 shows an example of a case where a connector 7 is provided in a blood collection kit 2 instead of a blood collection tool 5. The connector 7 in this example includes a flexible tube 71 of a predetermined length, a female connector 72 (holder-side connector of the present invention) provided at one end of the flexible tube 71, and a female connector 73 (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, it is possible to connect the syringe 6 to the blood collection tube holder 1 via the connector 7, and therefore, similar to the blood collection tube holder 1 shown in Fig. 11, a blood sample collected with the syringe 6 can be safely dispensed into the vacuum blood collection tubes 3a, 3b, and 3c. Furthermore, according to the blood collection kit 2 shown in Fig. 12, the connector 7 increases the degree of freedom in the relative positions of the blood collection tube holder 1 and the syringe 6, making dispensing easier and safer.

[0096] The length of flexible tube 71 is not particularly limited, but is preferably 10 to 300 mm. Connector 7 may be provided with a hard tube or pipe instead of flexible tube 71, or may be configured as a single member with female connectors 72, 73 provided on both ends.

[0097] 1 or 6 and the connector 7 may be used to configure the blood collection kit 2 shown in Fig. 12. The blood collection kit 2 may also include the blood collection tube holder 1 having the female connector 15b shown in Fig. 11, and the connector 7 having a flexible tube 71 with a male connector connectable to the female connector 15b at one end and a female connector 73 at the other end.

[0098] The above describes an embodiment of the present invention, but the blood collection tube holder and blood collection kit of the present invention are not limited to the above-described embodiment, and various modifications can be made within the scope of the gist of the present invention.

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

[0100] Furthermore, 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 of the present invention are not limited to these. [Explanation of symbols]

[0101] 1... blood collection tube holder, 2... blood collection kit, 3a, 3b, 3c... vacuum blood collection tube, 5... blood collection tool, 6... syringe, 7... connector, 11... blood collection tube holder body, 11d... first contact portion, 11e... second contact portion, 11f, 27... locking portion, 11g... third contact portion, 12... holding member, 13... bottom portion, 15... needle base, 15b, 53, 72... female connector, 16... hollow portion, 17... needle tube, 18... rubber sleeve, 21... engaging member, 22... pressure contact member, 51... blood collection needle tube.

Claims

1. a blood collection tube holder body having a hollow, bottomed cylindrical shape; and a holding member fitted to the inner circumferential surface of the blood collection tube holder body to detachably hold a blood collection tube inserted into a hollow portion of the blood collection tube holder body, The blood collection tube holder body includes a needle hub provided at the bottom, a hollow needle tube supported by the needle hub and projecting into the hollow portion of the blood collection tube holder body, and an elastic sheath covering the needle tube over its entire length, The holding member comprises a hollow cylindrical fitting member fitted into 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 part of the blood collection tube holder body, and swinging toward the inner peripheral surface of the blood collection tube holder body when the blood collection tube is inserted into the hollow part of the blood collection tube holder body, while pressing against the outer peripheral surface of the blood collection tube by their own elastic force, the blood collection tube holder body includes a plurality of abutment portions that abut against the blood collection tube inserted into the hollow portion of the blood collection tube holder body from the bottom side, thereby positioning the blood collection tube in the axial direction of the blood collection tube holder body; The blood collection tube holder is characterized in that the contact portion is disposed between the pressure contact members in the circumferential direction of the blood collection tube holder body.

2. The blood collection tube holder according to claim 1, The blood collection tube holder is characterized in that the abutting portions and the pressure contact members are arranged alternately in the circumferential direction of the blood collection tube holder body.

3. 3. The blood collection tube holder according to claim 2, A blood collection tube holder characterized in that the pressure contact member is positioned midway between the two contact portions in the circumferential direction of the blood collection tube holder body, and the distance between the pressure contact member and the corresponding contact portion in the circumferential direction of the blood collection tube holder body is constant.

4. 3. The blood collection tube holder according to claim 2, The blood collection tube holder according to claim 1, wherein the contact portion is provided so as to protrude from the bottom portion into a hollow portion of the blood collection tube holder body.

5. The blood collection tube holder according to claim 1, The blood collection tube holder is characterized in that the abutment portion is provided so as to protrude from the inner peripheral surface of the blood collection tube holder body toward the hollow portion of the blood collection tube holder body.

6. The blood collection tube holder according to claim 1, The abutment portion protrudes from the inner peripheral surface of the blood collection tube holder body toward the central axis of the hollow portion of the blood collection tube holder body, and is configured in the shape of a rib extending in the axial direction of the blood collection tube holder body from the bottom toward the opening side.

7. The blood collection tube holder according to claim 1, The blood collection tube holder is characterized in that the abutting portion is disposed on the outer circumferential side of the elastic sheath body.

8. The blood collection tube holder according to claim 1, A blood collection tube holder, wherein the contact portion is disposed on the outer circumferential side of the tip of the pressure contact member.

9. The blood collection tube holder according to any one of claims 1 to 8, The blood collection tube holder is characterized in that the blood collection tube holder body is provided with a connector that can be connected to the syringe so that the syringe and the needle tube communicate with each other.

10. A blood collection tube holder according to any one of claims 1 to 9; A blood collection kit comprising: a blood collection needle tube to be inserted into a blood vessel; and a blood collection tool having a holder-side connector connectable to the blood collection tube holder body so that the blood collection needle tube and the needle tube communicate with each other.

11. A blood collection tube holder according to any one of claims 1 to 9; A blood collection kit comprising: a connector having a syringe-side connector connectable to a syringe; and a holder-side connector connectable to the blood collection tube holder body so that the syringe connected to the syringe-side connector communicates with the needle tube.

Images