TW202339673A - Blood collection tube holder - Google Patents

Abstract

Provided is a blood collection tube holder that can easily be used regardless of the type of blood collection tube. A blood collection tube holder 1 comprises a holder body 10 for accommodating at least a portion of a blood collection tube, a pressure contacting part 32 that is disposed inside the holder body 10 and elastically deforms and thereby pressure-contacts an outer peripheral surface of a blood collection tube in conjunction with insertion of the blood collection tube in the holder body 10, and a contacting part 12b3c that is disposed in the holder body 10 and comes in contact with the blood collection tube from a bottom part 11 side to thereby position the blood collection tube in the axial direction, the pressure contacting part 32 having a proximal-end-side part 32a that extends from an inner peripheral surface 12b side of the holder body 10 toward the bottom part 11 so as to gradually separate from the inner peripheral surface 12b, and a distal-end-side part 32b that extends toward the bottom part 11 after bending so that the inner peripheral surface 12b side is recessed from a distal end of the proximal-end-side part 32a, and the contacting part 12b3c being provided so as to position the blood collection tube in a position in which only the proximal-end-side part 32a pressure-contacts the outer peripheral surface of the blood collection tube when the blood collection tube is of a specific type.

Description

Blood collection tube holder

The present invention relates to a blood collection tube holder for holding a blood collection tube during blood collection.

Conventionally, the method used when collecting a blood sample for a blood test or the like is to store the blood sample collected from a needle that pierces a living body in a blood collection tube held by a blood collection tube holder. Generally speaking, this blood collection tube holder is configured in a bottomed cylindrical shape having a bottom on the front end side and an opening on the rear end side, and the connecting needle tube communicating with the blood collection needle tube that pierces the living body is directed from the bottom toward the blood collection tube. Protruding inside the retainer. Then, the blood collection tube is inserted into the inside from the opening on the rear end side, and the connecting needle tube pierces the rubber stopper of the blood collection tube, thereby connecting the blood collection tube and the blood collection needle tube to each other.

Generally speaking, in this blood collection tube holder, the connecting needle tube is covered with a sleeve (sheath) made of a soft elastic body such as rubber to prevent it from being contaminated. The sleeve is pierced by the connection needle together with the rubber stopper of the blood collection tube when the blood collection tube is connected, and is pushed by the blood collection tube as the puncture progresses, causing compression deformation (elastic deformation) in the axial direction. ).

The elastic force of the compressed and deformed sleeve (the restoring force of elastic deformation) pushes the blood collection tube in the opposite direction to the insertion direction, that is, in the direction in which the blood collection tube is detached from the blood collection tube holder. Therefore, the blood collection tube holder must resist the elastic force of the sleeve after compression deformation to hold the blood collection tube.

To this end, a blood collection tube holder having a leaf spring-like pressure contact portion (flexible portion) that elastically deforms and presses as the blood collection tube is inserted is known (see, for example, Patent Document 1). Connected to the outer peripheral surface of the blood collection tube. By having such a crimping portion, the friction force generated between the crimping portion and the blood collection tube can resist the elastic force of the sleeve, so that the blood collection tube can be stably held. [Prior technical literature] [Patent Document]

[Patent Document 1] Japanese Patent Application Laid-Open No. 6-38944

[Problem to be solved by the invention]

However, the blood collection tube holder described in Patent Document 1 has a problem that its ease of use varies depending on the type of blood collection tube. Specifically, when there are multiple types of blood collection tubes, the holding force (friction force) by the crimping portion depends on the deformation amount of the crimping portion. When the diameter is large, the holding force will increase, and when the outer diameter of the part in contact with the crimping part is small, the holding force will decrease.

Therefore, if the blood collection tube holder is configured to reliably hold even a relatively small-diameter blood collection tube, the resistance during insertion and removal of a relatively large-diameter blood collection tube will increase, making insertion and extraction difficult. Difficult question. In addition, if the blood collection tube holder is configured so that even a blood collection tube with a relatively large diameter can be easily inserted and removed, there is a problem that the holding force of a blood collection tube with a relatively small diameter is insufficient and the possibility of falling off is increased.

The present invention was developed in view of such circumstances, and its object is to provide a blood collection tube holder that is easy to use regardless of the type of blood collection tube. [Technical means to solve problems]

The blood collection tube holder of the present invention includes a holder main body, a crimping portion, and a contact portion. The holder main body is configured in a bottomed cylindrical shape with a bottom on the front end side, and accommodates at least a part of the blood collection tube. The crimping portion is disposed in the holder main body, and elastically deforms as the blood collection tube is inserted into the holder main body, thereby crimping the outer peripheral surface of the blood collection tube, and the contact portion is disposed In the holder body, the blood collection tube is positioned in the axial direction by contacting the blood collection tube from the bottom side. The crimping portion has a base end side portion and a front end side portion. The base end side portion is The front end side portion extends from the inner peripheral surface side of the holder body toward the bottom side in such a manner that the inner peripheral surface side becomes a recess. After being bent, the contact portion extends toward the bottom side, and the contact portion is provided to position the blood collection tube at a position where only the proximal side portion is in pressure contact with the outer peripheral surface of the blood collection tube when the blood collection tube is of a specific type. .

According to the blood collection tube holder of the present invention, when holding the blood collection tube with a relatively small outer diameter of the part in contact with the crimping part, the elastic deformation amount of the crimping part can be maintained. When holding a blood collection tube with a relatively large outer diameter, the amount of elastic deformation of the crimping portion can be reduced, so that regardless of the type of blood collection tube, retention stability and ease of insertion and removal can be achieved. That is, the blood collection tube holder of the present invention is easy to use regardless of the type of blood collection tube.

Furthermore, in the blood collection tube holder of the present invention, it is preferable that the crimping portion has a low-rigidity portion that partially reduces rigidity.

According to this structure, the elastic deformation state of the crimping portion when in contact with the blood collection tube can be appropriately adjusted, and the holding stability and ease of insertion and removal can be further improved regardless of the type of blood collection tube.

Furthermore, in the blood collection tube holder of the present invention, it is preferable that the low-rigidity portion is provided at least on the proximal end side portion.

According to this structure, the sudden increase in resistance immediately after the insertion of the blood collection tube and the sudden decrease in resistance immediately before the removal of the blood collection tube can be alleviated, thereby making insertion and removal easier. Furthermore, since the proximal end side portion is easily flexibly deformed, when the proximal end side portion is brought into contact with the blood collection tube, the contact range in the axial direction can be enlarged and the proximal end side portion can be brought into stable contact.

Furthermore, in the blood collection tube holder of the present invention, it is preferable that the crimping portion is textured at least on a surface that contacts the blood collection tube.

According to this configuration, the friction between the blood collection tube and the crimping portion can be appropriately adjusted, and even if the outer peripheral surface of the rubber stopper comes into contact with the crimping portion when inserting and removing the blood collection tube, hooking can be prevented. , unpleasant noises, etc.

Furthermore, the blood collection tube holder of the present invention is preferably provided with a cylindrical fitting part and a protruding part, and the cylindrical fitting part is integrally formed with the pressure-contacting part and fitted into the holder main body, The protruding portion is provided on the inner circumferential surface of the retainer body at a predetermined distance from the fitting portion in the axial direction, and has an inclined surface that gradually moves away from the inner circumferential surface toward the fitting portion side.

According to this structure, the inclined surface can be used to guide the label, etc. attached to the blood collection tube away from the inner peripheral surface. This can prevent the label, etc. from being caught by the step difference between the inner peripheral surface and the fitting portion and causing peeling or damage. .

In the blood collection tube holder described in the above-mentioned Patent Document 1, the crimping portion (flexible portion) is provided on another member (adapter) that is fitted into the holder body. Therefore, it is formed on the inner peripheral surface of the holder body. There is a problem that there is a step difference between the adapter and the fitting part (the adapter body), and labels attached to the blood collection tubes may be caught by the step difference and peel off or be damaged.

A protruding portion having an inclined surface that gradually moves away from the inner peripheral surface toward the fitting portion side is provided on the inner peripheral surface of the holder body, and the inclined surface can be used to guide labels attached to the blood collection tube away from the inner peripheral surface. , and prevent labels, etc. from being hooked. Furthermore, by arranging the protruding portion and the fitting portion at a predetermined distance in the axial direction, even if the rolled end of the label, etc. accidentally enters between the two, it will not be sandwiched between the two. And can escape, this can more reliably prevent labels, etc. from being hooked. [Effects of the invention]

According to the blood collection tube holder of the present invention, it is possible to exhibit the excellent effect of being easy to use regardless of the type of blood collection tube.

Hereinafter, embodiments of the present invention will be described with reference to the attached drawings.

FIG. 1A is a top view of the blood collection tube holder 1 according to an embodiment of the present invention, and FIG. 1B is a front view of the blood collection tube holder 1 . Figure 2 is a cross-sectional view taken along line I-I in Figure 1A. The blood collection tube holder 1 includes a holder body 10 that accommodates at least a part of the blood collection tube 100 (see FIGS. 4 and 5 ), and an adapter for connecting a blood collection needle (not shown) for piercing a living body to the blood collection tube. The device 20 and the holding member 30 hold the blood collection tube 100 inside the holder body 10 .

The retainer body 10 is a bottomed cylindrical member composed of a bottom 11 on the front end side (the upper side in FIGS. 1B and 2 ) and a cylindrical portion 12 on the rear end side (the lower side in FIGS. 1B and 2 ). , is composed of suitable transparent or translucent resin such as polypropylene, polycarbonate, etc. That is, the holder body 10 has an opening on the rear end side for inserting and removing the blood collection tube 100 . A through hole 11 a is provided in the center of the bottom 11 , and a cylindrical fixing portion 13 and an outer wall portion 14 protruding from the front end surface 11 b toward the front end side are provided. Furthermore, a connection part 15 is provided between the fixed part 13 and the outer wall part 14.

The fixing portion 13 is a portion that allows the adapter 20 to be inserted into the interior from the front end side to be fixed, and is provided with a female thread 13 a that is threadedly engaged with the adapter 20 . Furthermore, the female thread 13a is a double start thread and is composed of two threads arranged in a range that does not overlap with each other when viewed from the axial direction. The outer wall portion 14 is a portion for protecting the fixing portion 13 and is provided to surround the fixing portion 13 from the outer peripheral side. The connecting portion 15 is a portion that connects the fixing portion 13 and the outer wall portion 14 and utilizes the outer wall portion 14 to reinforce the fixing portion 13 . It is provided at four places at approximately equal intervals in the circumferential direction.

A plurality of (in this embodiment, four) tongue-shaped protruding pieces 11c1 are provided on the outer peripheral side of the rear end surface 11c of the bottom part 11. The tongue-shaped protruding piece 11c1 is configured in a substantially flat plate shape protruding toward the rear end side, and is elastically deformed by contacting the holding member 30, thereby reinforcing the holding force of the holding member 30. An inclined surface 11c1a is provided on the front end (protruding end) side of the inner surface of the tongue-shaped protruding piece 11c1 (the surface on the axis C side of the blood collection tube holder 1). The inclined surface 11c1a is for connecting the tongue-shaped protruding piece 11c1 with the holding member 30 The contact and deformation after contact proceed smoothly and the thickness is gradually reduced toward the front end to form an inclination.

Furthermore, a plurality of (in this embodiment, four) first contact portions 11c2 are provided slightly closer to the axis C side than the tongue-shaped protruding piece 11c1 of the rear end surface 11c. The first contact portion 11c2 contacts the front end surface of the blood collection tube 100 with a relatively small diameter on the front end side from the front end side (bottom 11 side), thereby positioning the blood collection tube 100 in the axial direction. The shape of the first contact portion 11c2 when viewed from the bottom is formed in an arc shape with the axis C as the center, and is provided to protrude toward the rear end side from the rear end surface 11c.

The front end side portion of the cylindrical portion 12 protrudes further toward the front end side than the bottom portion 11 . In other words, the bottom part 11 is arranged to be offset toward the rear end side from the front end of the tube part 12 . In this embodiment, with such an arrangement, the overall length of the holder body 10 in the axial direction can be shortened and the ease of holding can be improved.

The outer peripheral surface 12a of the cylindrical portion 12 is formed in a stepped shape in which the outer diameter is enlarged in two steps toward the rear end side. The outer peripheral surface 12a is also provided with a plurality of anti-slip ribs 12a1 (six in this embodiment) extending in the axial direction (the up-and-down direction in FIGS. 1B and 2 ).

A flange 16 having an elliptical shape in plan view is provided at the rear end of the cylindrical portion 12 . The flange 16 allows the user to hold it with fingers when inserting the blood collection tube 100 into the holder body 10. A crescent-shaped anti-slip recess 16a1 is provided on the front end surface 16a. In addition, side wall portions 16b protruding toward the front end are respectively provided at the front and back ends of the flange 16, thereby making the holder body 10 easier to hold when the blood collection tube 100 is taken out of the holder body 10. Improved sustainability.

The inner peripheral surface 12b of the cylindrical portion 12 is provided with a first recessed portion 12b1 that is continuous in the circumferential direction on the rear end side and a plurality of groove-shaped second recessed portions 12b2 that extend in the axial direction from the first recessed portion 12b1 toward the front end side. . The first recessed portion 12b1 is a portion into which the holding member 30 is fitted, and the second recessed portion 12b2 is a portion that avoids interference with the holding member 30 and the tongue-shaped protruding piece 11c1. In this embodiment, four second recessed portions 12b2 are arranged at substantially equal intervals in the circumferential direction, corresponding to the structure of the holding member 30 described below.

The front end side of the inner peripheral surface 12b is further provided with a plurality of (in this embodiment, four) abutment ribs 12b3 extending in the axial direction from the bottom 11 toward the rear end side. The contact rib 12b3 mainly contacts the blood collection tube 100 in the radial direction, thereby positioning the blood collection tube 100 in the radial direction. The contact rib 12b3 is also configured to position the front end surface of a specific type of blood collection tube 100 having a relatively large diameter on the front end side from the front end side (bottom 11 side), thereby positioning the blood collection tube 100 in the axial direction.

In this embodiment, four contact ribs 12b3 are arranged at substantially equal intervals in the circumferential direction by arranging the contact ribs 12b3 at positions offset counterclockwise in the circumferential direction from the second recess 12b2 in plan view.

Specifically, the contact rib 12b3 includes a second contact portion 12b3a on the front end side with a large protrusion amount from the inner circumferential surface 12b, and a third contact portion 12b3a on the rear end side with a small protrusion amount from the inner circumferential surface 12b. The connecting portion 12b3b is formed into a stepped shape. That is, the second contact portion 12b3a on the front end side is used for positioning the blood collection tube 100 with a relatively small diameter on the front end side in the radial direction, and the third contact portion 12b3b on the rear end side is used for positioning the blood collection tube 100 with a relatively large diameter on the front end side. A positioned portion of the blood vessel 100 in the radial direction.

Furthermore, the step portion between the second contact portion 12b3a and the third contact portion 12b3b contacts the front end surface of the blood collection tube 100 with a relatively large diameter on the front end side from the front end side, thereby forming a third step for positioning in the axial direction. 4. Contact portion 12b3c (contact portion of the present invention). That is, in this embodiment, the blood collection tube 100 with a relatively large diameter on the front end side is positioned further to the rear end side than the blood collection tube 100 with a relatively small diameter on the front end side.

A protrusion 12b3d that locally increases the protrusion amount from the inner peripheral surface 12b is provided on the rear end side of the top surface of the third contact portion 12b3b. In this embodiment, as the blood collection tube 100 with a relatively large diameter on the front end side, it is assumed to be a so-called seal cap type (seal cap type) having a flange-shaped portion with a relatively large diameter on the front end side. The protrusions 12b3d are It is locked on the flange-shaped portion of the capped blood collection tube 100 to restrict the movement of the blood collection tube 100 toward the rear end side. That is, the protrusions 12b3d are used to assist in preventing the capped blood collection tube 100 from falling off.

The inner circumferential surface 12b of the cylindrical portion 12 is further provided with a plurality of (in this embodiment, four) protruding portions 12b4 protruding toward the axis C side. The protruding portion 12b4 is an inclined surface 12b5 (the inclined surface of the present invention) formed gradually away from the inner peripheral surface 12b toward the rear end side, and is used to prevent the label 200 etc. (refer to FIGS. 4 and 5) attached to the blood collection tube 100 from being held. The member 30 is caught and peeled off or damaged. In this embodiment, the protruding portions 12b4 are arranged between the four second recessed portions 12b2, whereby the four protruding portions 12b4 are arranged at substantially equal intervals in the circumferential direction. The details of the protrusion 12b4 having the inclined surface 12b5 will be described later.

The adapter 20 includes a tubular connection needle 21 with a sharp tip at the front end, a stepped cylindrical base (hub) 22 fixed to the base end of the connection needle 21 to cover the connection needle. The slender bottomed cylindrical sleeve 23 is fixed to the base 22 in the state 21.

The connection needle 21 is a part that pierces the rubber stopper 110 and the like of the blood collection tube 100 (see FIG. 4 ), and is made of a suitable metal such as stainless steel. The base end of the connection needle tube 21 is fixed to the rear end side of the base 22 by adhesive.

The base 22 is a portion fixed to the holder body 10 and is made of a suitable resin such as polyvinyl chloride or polypropylene like the holder body 10 . The rear end side of the base 22 is provided with a male thread 22 a that is threaded with the female thread 13 a of the fixing part 13 . Furthermore, a flange portion 22b for positioning the retainer body 10 is provided on the front end side of the male thread 22a.

In this embodiment, the thread of the male thread 22a is divided into four parts in the circumferential direction except for a part on the rear end side, thereby being provided intermittently. Furthermore, a notch (not shown) is provided in the flange portion 22b, thereby providing air permeability between the holder body 10 and the adapter 20. In this way, even when the adapter 20 is installed on the holder body 10, the sterilizing gas (steam, ethylene oxide gas, etc.) can still flow in between the fixing part 13 and the male thread 22a, thereby improving the sterilization process. s efficiency.

A male connector 22c that complies with standards such as ISO80369-7 is provided on the front end side of the base 22. A blood collection needle that pierces a living body is connected to the adapter 20 through the male connector 22c.

The sleeve 23 is a portion that covers and protects the portion of the connecting needle tube 21 that protrudes from the base 22, and is made of a flexible and suitable elastic material such as isoprene rubber. The sleeve 23 is fixed to the base 22 by using elastic force (restoring force of elastic deformation) to engage with the rear end of the base 22 that is pressed into the opening.

The adapter 20 is fixed to the holder body 10 in a state where the front end of the connecting needle tube 21 facing the rear end side is arranged in the holder body 10 . Therefore, the user only needs to insert the front end of the blood collection tube 100 provided with the rubber stopper 110 and the like into the holder body 10 from the rear end side, and let the connecting needle tube 21 penetrate the sleeve 23 and the rubber stopper 110 etc., and then the user can insert the blood collection tube 100 from the rear end side into the holder body 10 . 100 is connected to the adapter 20.

The connecting needle tube 21 is inserted through the rubber stopper 110 of the blood collection tube 100 to connect the blood collection tube 100 and the adapter 20, so that the inside of the blood collection tube 100 is connected to the inside of the male connector 22c, thereby allowing the blood collection tube 100 to be connected to the male connector 22c. Use a needle tube to communicate with the inside of the blood collection tube 100 . That is, the blood sample collected from the blood collection needle flows into the blood collection tube 100 and becomes a storage state. Generally speaking, the pressure inside the blood collection tube 100 is depressurized in advance, and blood is sucked into the blood collection tube 100 through negative pressure.

When the blood collection tube 100 and the adapter 20 are connected, the sleeve 23 is folded into a bellows shape between the blood collection tube 100 and the base 22 to be compressed in the axial direction. When the adapter 20 is removed from the blood collection tube 100, the original shape covering the connecting needle tube 21 can be restored.

In addition, the adapter 20 may be provided with a female connector capable of connecting the tip of a syringe, etc., instead of the male connector 22c, or may be provided with a needle for blood collection. The adapter 20 may also connect the male connector 22c, the female connector, or the blood collection needle through a flexible tube or the like. The male thread 22a can also be provided continuously. The base 22 may not be detachably fixed to the holder body 10 but may be integrated with the holder body 10 .

The holding member 30 is inserted into the holder body 10 from the opening of the holder body 10 and fitted (fitted in) from the inside, thereby being attached to the holder body 10 . The holding member 30 is made of a suitable transparent or translucent resin, such as polypropylene, polycarbonate, or the like, similarly to the holder body 10 . Therefore, the user can visually confirm the blood collection tube 100 inside the holder body 10 from the outside. The holding member 30 includes a cylindrical fitting part 31 and a plurality of (in this embodiment, four) pressure contact parts 32 protruding from the fitting part 31 toward the front end side.

The fitting portion 31 is a portion that fits into the first recessed portion 12b1 of the retainer body 10, and is formed in a cylindrical shape. The crimping portion 32 is a portion that is elastically deformed as the blood collection tube 100 is inserted and is crimped to the outer peripheral surface of the blood collection tube 100, and is formed in a strip shape that is bent into a U-shape. More specifically, the crimping portion 32 has a base end side portion 32a and a front end side portion 32b. The base end side portion 32a gradually moves away from the inner peripheral surface 12b from the inner peripheral surface 12b side toward the front end side (bottom 11 side). Extending, the front end side portion 32b is bent from the front end of the base end side portion 32a so that the inner peripheral surface side 12b becomes a depression and then extends toward the front end side (bottom 11 side).

FIG. 3 is a front view of the retaining member 30 . Positioning convex portions 31a are provided at four places on the outer peripheral surface of the fitting portion 31. The holding member 30 is positioned in the circumferential direction by accommodating the positioning protrusion 31a in the positioning recess 12b1a provided in the first recess 12b1, so that the crimping portion 32 is arranged between the second recess 12b2 and the tongue-shaped The position corresponding to the protruding piece 11c1 (see Figure 2).

The outer peripheral surface of the fitting portion 31 is also provided with a falling-off prevention convex portion 31b that is continuous in the circumferential direction. The holding member 30 prevents the falling-off preventing convex portion 31b from falling off from the holder body 10 by accommodating the falling-off preventing recessed portion 12b1b provided in the first recessed portion 12b1 (see FIG. 4 and the like).

Four trapezoidal plate-shaped trapezoidal portions 31c are provided at substantially equal intervals in the circumferential direction at the front end of the fitting portion 31, and the crimping portion 32 extends from the front end of the trapezoidal portion 31c. When the holding member 30 is attached to the holder body 10, a part of the outer peripheral side of the trapezoidal portion 31c is accommodated in the second recessed portion 12b2 (see Fig. 2).

The base end side portion 32a of the crimping portion 32 extends from the front end of the trapezoidal portion 31c toward the front end side so as to gradually approach the axis C. The front end side portion 32b extends slightly gradually away from the axis C from the front end of the base end side portion 32a toward the front end side. Furthermore, between the base end side part 32a and the front end side part 32b, it is bent into a V shape in which the outer peripheral side (inner peripheral surface 12b side) becomes a depression (valley).

The crimping portion 32 is curved in an arc shape in cross section, and the inner surface (surface on the axis C side) 32c is a concave surface along the circumference centered on the axis C. Appropriate rounded corners are provided at the corners at both ends of the inner side 32c in the width direction. Furthermore, an inclined surface 32d1 is provided on the front end side of the outer side surface 32d of the front end side portion 32b. The inclined surface 32d1 is oriented toward the front end in order to smoothly allow the contact between the crimping portion 32 and the tongue-shaped protruding piece 11c1 and the deformation after the contact. The thickness is gradually reduced to form an inclination, and a rounded corner portion 32d2 is provided at the corner of the tip of the inclined surface 32d1.

The crimping portion 32 contacts the blood collection tube 100 inserted into the holder body 10 in the radial direction to elastically deform the proximal side portion 32a to swing toward the outer circumference, and the front end of the front end side portion 32b The portion is in contact with the tongue-shaped protruding piece 11c1 and elastically deforms to expand the bent portion. Furthermore, the elastic force (restorative force of elastic deformation) of the crimping portion 32 (and the tongue-shaped protruding piece 11c1) is used to crimp the blood collection tube 100 in the radial direction, thereby stably holding the blood collection tube holder 1.

In this embodiment, by appropriately providing the reinforcing piece 32e and the low-rigidity portion 32f in the crimping portion 32 to adjust the rigidity of each part of the crimping portion 32, the crimping portion 32 can be appropriately adjusted as the blood collection tube 100 is inserted. Elastic deformation.

The reinforcing piece 32e is used to locally reinforce the crimping portion 32, and is provided across the base end side portion 32a and the front end side portion 32b on the outer peripheral side (concave side) of the bent portion of the crimping portion 32 (that is, , the two are connected at 32d on the outer side) and are composed of wider ribs. By providing such a reinforcing piece 32e, the elastic force when the crimping portion 32 is elastically deformed by opening the bent portion can be increased.

The low-rigidity portion 32f is used to locally reduce the rigidity of the crimping portion 32. As shown by the two-dot chain line in FIG. 3, the low-rigidity portion 32f is configured to partially dent the inner surface 32c to partially reduce the thickness of the crimping portion 32. By providing such a low-rigidity portion 32f, the flexural rigidity of the crimping portion 32 can be partially reduced, thereby reducing the elastic force.

In this embodiment, the low rigidity portion 32f is provided in the crimping portion 32 in a range other than a portion of the proximal end side of the proximal end side portion 32a and a portion of the distal end side of the distal end side portion 32b. In this way, by providing the low rigidity portion 32f in an appropriate range of the proximal end side portion 32a, the elastic force when the proximal end side portion 32a is elastically deformed by swinging can be adjusted. Furthermore, by providing the low-rigidity portion 32f across the base end side portion 32a and the front end side portion 32b, the elastic force when the crimping portion 32 is elastically deformed by opening the bent portion can be reduced. In this embodiment, the reinforcing piece 32e and the low-rigidity portion 32f are overlapped in the bent portion to adjust the elastic force when the pressure-contact portion 32 is elastically deformed to open the bent portion.

In this embodiment, texture processing is performed on substantially the entire inner surface 32c of the crimping portion 32 except for the portions provided with rounded corners at both ends in the width direction. In this way, by texturing the inner surface 32c to provide an appropriate concave and convex shape, the sliding properties (friction) between the crimping portion 32 and the blood collection tube 100 can be adjusted, and secure retention by the crimping portion 32 can be achieved. It can also prevent the blood collection tube 100 from being caught or making unpleasant noises when inserting or removing it.

In addition, this texturing process only needs to be performed on at least the inner surface 32c of the crimping portion 32, that is, the surface that comes into contact with the blood collection tube 100 when the blood collection tube 100 is inserted, held, or removed, and may even be applied to the fitting portion 31 The inner peripheral surface 31d may also be implemented. Alternatively, the inner surface 32c may be partially textured.

4 and 5 are cross-sectional views showing a state after the blood collection tube 100 is inserted into the blood collection tube holder 1, and are cross-sectional views taken along line II-II in FIG. 1A. In FIGS. 4 and 5 , part of the description is omitted or simplified, and the crimping portion 32 and the tongue-shaped protruding piece 11c1 in the I-I line cross-sectional view of FIG. 1A are represented by two-dot chain lines. In FIGS. 4 and 5 , the state at the beginning of the insertion of the blood collection tube 100 is shown on the left side of the axis C, and the state after the insertion of the blood collection tube 100 is completed (the state after the blood collection tube 100 is held by the blood collection tube holder 1 ) is displayed to the right of axis C. In addition, the deformation state of each part in Figures 4 and 5 may not be accurate.

FIG. 4 shows an example of inserting the blood collection tube 100 with a smaller diameter on the front end side into the blood collection tube holder 1 . In this example, the blood collection tube 100 is of the so-called rubber stopper type, and the opening on the front end side is closed with the rubber stopper 110 . In addition, a piercing recess 112 is provided in the central portion of the front end surface 111 of the rubber stopper 110, that is, the portion where the connecting needle tube 21 is pierced. In addition, a label 200 recording various information is attached to the outer peripheral surface (side) of the blood collection tube 100 .

When the user inserts the blood collection tube 100 into the blood collection tube holder 1, as shown on the left side of FIG. The axis is positioned so that the axis is substantially aligned with the axis C of the blood collection tube holder 1 . Then, the user pushes the blood collection tube 100 in to cause the crimping portion 32 to open toward the outer circumference, that is, to generate elasticity so that the proximal side portion 32 a swings toward the inner circumferential surface 12 b side of the holder body 10 The elastic force is used to deform the pressure-contacting portion 32 against the outer peripheral surface of the blood collection tube 100 (mainly the outer peripheral surface of the rubber stopper 110).

When the piercing recess 112 of the rubber stopper 110 comes into contact with the cannula 23, as the insertion of the blood collection tube 100 progresses, the cannula 23 is compressed and deformed in the axial direction in a bellows-like folding manner, and its bottom is clamped in the connection The connection needle tube 21 is inserted into the cannula 23 between the front end of the needle tube 21 and the rubber stopper 110 . Then, the user further pushes the blood collection tube, and the rubber stopper 110 is pierced by the connection needle tube 21 so that the connection needle tube 21 penetrates the rubber stopper 110 , whereby the inside of the blood collection tube 100 and the inside of the adapter 20 are connected.

The crimping portion 32 swings larger as the insertion of the blood collection tube 100 progresses. After the rounded corner portion 32d2 at the front end comes into contact with the tongue-shaped protruding piece 11c1, the pressure between the base end side portion 32a and the front end side portion 32b is increased. The bent portion opens to produce elastic deformation. The tongue-shaped protruding piece 11c1 in contact with the crimping portion 32 is also elastically deformed to swing toward the outer peripheral side (the inner peripheral surface 12b side).

The blood collection tube 100 finally makes the front end surface 111 of the rubber plug 110, that is, the front end surface 101 of the blood collection tube 100 contact the first contact portion 11c2, thereby positioning it at an appropriate position in the axial direction. In addition, at this time, the amount of movement of the blood collection tube 100 in the radial direction is limited by the second contact portion 12b3a, so it is also positioned at an appropriate position in the radial direction.

When the front end surface 111 of the rubber stopper 110 is in contact with the first contact portion 11c2, as shown on the right side of FIG. 4, the sleeve 23 undergoes a large compression deformation in the axial direction. The elastic force pushes the blood collection tube 100 toward the rear end side in the axial direction. That is, the pressing force of the sleeve 23 causes the blood collection tube 100 to come off from the blood collection tube holder 1 .

In this regard, in this embodiment, as the crimping force (pressing force) with respect to the radial direction of the blood collection tube 100, not only the elastic force of the crimping portion 32 but also the elastic force of the tongue-shaped protruding piece 11c1 is added, so that the outer periphery of the blood collection tube 100 can be pressed. The friction between the surface and the crimping portion 32 is increased, and the blood collection tube 100 can be stably held against the pressing force of the sleeve 23 .

In this embodiment, the crimping portion 32 is bent between the base end side 32a and the front end side 32b so that the outer peripheral side becomes a depression, and the front end surface 111 of the blood collection tube 100 is in contact with the first contact. In the state of the connecting portion 11c2, only the front end side portion 32b is in contact with the blood collection tube 100, and the elastic force of the crimping portion 32 generates a component force that pushes the blood collection tube 100 toward the front end side. That is, in this embodiment, this component force also contributes to stably holding the blood collection tube 100 .

In this embodiment, the elastic force is increased by providing the reinforcing piece 32e in the crimping portion 32, and the elastic force of the crimping portion 32 is prevented from becoming excessively high by appropriately providing the low rigidity portion 32f. In this way, the resistance during insertion can be appropriately reduced, and the holding stability of the blood collection tube 100 and the ease of insertion can be achieved. In particular, by providing the low rigidity portion 32f in the proximal end side portion 32a, a sudden increase in resistance immediately after the insertion of the blood collection tube 100 is alleviated, thereby making the insertion easier.

Furthermore, in this embodiment, the inner surface 32c of the crimping portion 32 is textured, thereby improving the sliding properties between the crimping portion 32 and the blood collection tube 100. In this way, even if the crimping portion 32 contacts the rubber stopper 110 with a high surface friction coefficient, the occurrence of stick slip can still be suppressed, the blood collection tube 100 can be inserted smoothly, and possible problems that may occur during insertion can be prevented. Unpleasant noise.

After the blood collection is completed, the user pulls out the blood collection tube 100 toward the rear end side and removes the blood collection tube 100 from the blood collection tube holder 1 . In this embodiment, the low rigidity part 32f and texture processing allow the blood collection tube 100 to be smoothly removed. In particular, by providing the low rigidity portion 32f at the base end side portion 32a, the sudden decrease in resistance immediately before the removal of the blood collection tube 100 is completed can be mitigated, thereby preventing the blood collection tube 100 from being dropped due to excessive force when the blood collection tube 100 is removed. 100 accidents. The texture processing also prevents abnormal noises when being pulled out.

In addition, the blood collection tube 100 includes a so-called cap type in which the rubber stopper 110 is covered with a resin overcap. This cap type blood collection tube 100 also has an outer diameter on the front end side, that is, an outer diameter of the cap. The small diameter is held by the blood collection tube holder 1 like the rubber stopper type blood collection tube 100 .

FIG. 5 shows an example of a case where a blood collection tube 100 with a relatively large diameter on the front end side is inserted into the blood collection tube holder 1 . In this example, the blood collection tube 100 is a so-called capping type, and the opening on the front end side is closed by the sealing member 120 . In this capped blood collection tube 100, a flange-shaped flange-shaped portion 102 is provided at the front end portion to expand the outer diameter of the opening end portion, thereby ensuring an area for attaching the sealing member 120.

The sealing member 120 is configured such that a rubber valve body 122 is disposed at the center of a sheet 121 made of an aluminum film or the like. The valve body 122 is a part through which the connecting needle tube 21 is pierced, and a piercing recess 123 is provided in the center of the front end surface. Furthermore, the sheet 121 is provided with a tab 124 for holding the sealing member 120 when peeling it off from the blood collection tube 100 .

As shown on the left side of FIG. 5 , in the case of the cap-type blood collection tube 100 , the crimping portion 32 is in contact with the flange-shaped portion 102 having a larger diameter than in the rubber stopper-type or cap-type blood collection tube 100 . Therefore, when the capped blood collection tube 100 is inserted into the same position as the rubber stopper type or other blood collection tube 100, that is, the position where the flange-shaped portion 102 contacts the front end side portion 32b of the crimping portion 32, the crimping is The amount of elastic deformation of the portion 32 and the tongue-shaped protruding piece 11c1 will increase.

If the amount of elastic deformation of the crimping portion 32 and the tongue-shaped protruding piece 11c1 increases, the crimping force (pressing force) on the radial direction of the blood collection tube 100 increases, and the blood collection tube 100 can be held more stably. However, the blood collection tube 100 The resistance during plugging and unplugging will also increase. That is, the capped blood collection tube 100 requires more force to insert and remove than the rubber stopper type blood collection tube 100, which makes the usability of the blood collection tube holder 1 worse.

In view of this, it is conceivable to configure the crimping portion 32 and the tongue-shaped protruding piece 11c1 to facilitate the insertion and removal of the cap-type blood collection tube 100. However, in this case, the crimping force in the radial direction of the blood collection tube 100 such as the rubber stopper type is insufficient, and the possibility of the blood collection tube 100 falling off during blood collection is increased. Therefore, the usability of the blood collection tube holder 1 will still be deteriorated. .

In this embodiment, as shown on the right side of FIG. 5 , the capped blood collection tube 100 is positioned only on the proximal end side of the crimping portion 32 by the fourth contact portion 12b3c provided on the contact rib 12b3 The portion 32a is in pressure contact with the outer peripheral surface of the flange-shaped portion 102. In this way, also for the capped blood collection tube 100, the resistance during insertion and removal can be suppressed to be the same as that of the rubber stopper type or other blood collection tube 100, and the blood collection tube 100 can be stably held.

Specifically, by bringing only the base end side portion 32a into contact with the blood collection tube 100, the amount of elastic deformation of the crimping portion 32 and the tongue-shaped protruding piece 11c1 can be reduced, and the degree of freedom of the flexural deformation of the front end side portion 32b can be reduced. improve. Accordingly, even if the portion in contact with the crimping portion 32 is relatively large in diameter, the crimping force in the radial direction of the blood collection tube 100 can be suppressed to be the same as that of the rubber stopper type or other blood collection tube 100, thereby reducing the insertion and withdrawal resistance. and maintaining stability.

In addition, by allowing only the proximal side portion 32a to contact the blood collection tube 100, the axial position of the blood collection tube 100 is shifted toward the rear end side, thereby reducing the compression amount (elastic deformation amount) of the sleeve 23, thereby reducing the direction of the blood collection tube 100. The pushing force from the cannula 23 acts in the direction in which the blood collection tube 100 comes off. Since only the proximal side portion 32a is in contact, no component force is generated to push the blood collection tube 100 toward the distal side. Compared with the case where the distal side portion 32b is in contact, the blood collection tube 100 becomes easier to fall off. The pushing force of the tube 23 is reduced, and the blood collection tube 100 can be held stably.

Furthermore, in this embodiment, by appropriately providing the reinforcing piece 32e and the low rigidity portion 32f in the crimping portion 32 to adjust the elastic force of the crimping portion 32, an appropriate crimping force can be imparted to the blood collection tube even if the contact position is changed. 100. In addition, by providing the low rigidity portion 32f in the proximal end side portion 32a, not only can the sudden change in resistance when the blood collection tube 100 is inserted and removed be alleviated, but the proximal end side portion 32a can also be easily flexed and deformed. The contact is made along the outer peripheral surface of the flange-shaped portion 102 . Thereby, the contact range between the blood collection tube 100 and the crimping portion 32 in the axial direction can be expanded, thereby improving the holding stability.

When the blood collection tube 100 is in contact with the fourth contact portion 12b3c, specifically, in a state where the surface (front end side) 121a of the sheet 121 is in contact with the fourth contact portion 12b3c, only the pressure contact portion 32 The base end side part 32a is in contact with the flange-shaped part 102, but the front end side part 32b is not in contact.

The contact ribs 12b3 are provided such that the distance between the top surfaces of the opposing second contact portions 12b3a is smaller than the outer diameter of the flange-shaped portion 102 of the blood collection tube 100. Therefore, even if the blood collection tube 100 is a capped type, the user only needs to insert the blood collection tube 100 and push it forward so that the blood collection tube 100 contacts the fourth contact portion 12b3c, so that the user can position it appropriately in the axial direction. position (a position where only the base end side portion 32a of the crimping portion 32 is in contact).

In other words, in this embodiment, even if the outer diameter of the portion in contact with the crimping portion 32 is larger than the predetermined outer diameter (that is, the distance between the top surfaces of the opposing second contact portions 12b3a), the pressure still remains. The blood collection tube 100 can naturally contact the fourth contact portion 12b3c, and the user can position the blood collection tube 100 at an appropriate position in the axial direction without performing any special operations.

In a state where the blood collection tube 100 is positioned in the axial direction, the movement amount in the radial direction is limited by the third contact portion 12b3b, so that the blood collection tube 100 is positioned in the radial direction. Furthermore, in this embodiment, the protrusion 12b3d provided in the third contact portion 12b3b is locked on the rear end side of the flange-shaped portion 102, thereby more reliably preventing the blood collection tube 100 from falling off. In addition, the user can know that the blood collection tube 100 has been appropriately positioned by the click feeling when the flange-shaped portion 102 passes over the protrusion 12b3d.

The structure of the contact rib 12b3 is not particularly limited. For example, the second contact portion 12b3a and the third contact portion 12b3b may sandwich the blood collection tube 100 in the radial direction to increase the holding force of the blood collection tube 100. Similarly, the shape of the protrusion 12b3d is not particularly limited. By setting the shape of the protrusion 12b3d appropriately, the insertion and extraction properties and the click feeling can be appropriately adjusted.

Moreover, the 2nd contact part 12b3a, the 3rd contact part 12b3b, and the 4th contact part 12b3c may each be provided individually. In addition, the second contact portion 12b3a and the third contact portion 12b3b may be omitted. Moreover, the shape of the first contact part 11c2 is not particularly limited. For example, the first contact part 11c2 and the second contact part 12b3a, the third contact part 12b3b, or the fourth contact part 12b3c may be provided integrally.

Furthermore, when the tongue-shaped protruding piece 11c1 is abutted by the pressure contact portion 32 and is elastically deformed, its front end portion may or may not come into contact with the retainer body 10. The tongue-shaped protruding piece 11c1 may be omitted. In this case, when the crimping portion 32 is elastically deformed, the front end portion may or may not come into contact with the retainer body 10.

Furthermore, the reinforcing piece 32e may be omitted from the crimping part 32 and the holding force of the blood collection tube 100 may be adjusted. In addition, the reinforcing piece 32e connecting the proximal side part 32a and the front end side part 32b may be provided instead of or together with the reinforcing piece 32e connecting the proximal side part 32a and the trapezoidal part 31c.

The range of the low-rigidity portion 32f is not particularly limited. For example, the low-rigidity portion 32f may be provided only on the base end side portion 32a, or the low-rigidity portion 32f may be provided intermittently in the extending direction of the crimping portion 32. The structure of the low-rigidity portion 32f is not particularly limited. For example, the low-rigidity portion 32f can be formed by recessing the outer surface 32d, or the low-rigidity portion 32f can be formed by partially changing the material of the crimping portion 32 through two-color molding or the like.

Furthermore, the number of the tongue-shaped protruding piece 11c1, the first contact portion 11c2, the contact rib 12b3 and the pressure contact portion 32 is not particularly limited, and any number can be used. Furthermore, the tongue-shaped protruding piece 11c1 may be configured as a separate entity from the holder main body 10. Furthermore, the crimping portion 32 may be formed integrally with the retainer body 10 .

FIG. 6 is a cross-sectional view showing the structure of the protruding portion 12b4, and is an enlarged view of part of the III-III line cross-sectional view in FIG. 1A. When the holding member 30 is fitted and installed inside the retainer body 10, a step will occur between the inner circumferential surface 12b of the retainer body 10 and the inner circumferential surface 31d of the fitting portion 31 of the retaining member 30. When the blood collection tube 100 is removed, the rolled end of the label 200 attached to the blood collection tube 100, the protruding piece 124 protruding from the sealing member 120, etc. may be caught by this step.

Therefore, in this embodiment, the first recess 12b1 is provided in the inner peripheral surface 12b of the holder body 10 to accommodate a part of the outer peripheral side of the fitting portion 31, and the label 200, the protruding piece 124, etc. are provided so as to be away from the inner peripheral surface 12b. The protruding portion 12b4 is guided toward the axis C side (the left side in FIG. 6 ), thereby preventing the label 200, the protruding piece 124, etc. from being caught. The protruding portion 12b4 is not provided alone but is provided in combination with the first recessed portion 12b1. The height of the protruding portion 12b4 that is chamfered (undercut) from the inner peripheral surface 12b can be reduced, and the retainer body 10 during resin molding can be Improved mold release.

The protruding portion 12b4 is an inclined surface 12b5 that is provided on the front end side (bottom 11 side) of the inner peripheral surface 12b than the fitting portion 31 and gradually moves away from the inner peripheral surface 12b toward the rear end side, that is, the fitting portion 31 side. formed on the top surface of itself. Furthermore, the inclined surface 12b5 includes a first inclined surface 12b5a on the frontmost side, a second inclined surface 12b5b on the rear end side of the first inclined surface 12b5a, and a third inclined surface 12b5c on the rear end side of the second inclined surface 12b5b.

The inclination angles of the first inclined surface 12b5a, the second inclined surface 12b5b and the third inclined surface 12b5c with respect to the inner peripheral surface 12b gradually increase from the front end side to the rear end side. By configuring the inclined surface 12b5 in this way, the label 200, the protruding piece 124, etc. can be guided smoothly without affecting the insertion and removal properties of the blood collection tube 100. In addition, the change in shape (permanent deformation) caused by so-called forced demolding during demolding can be suppressed, so the mold structure can be simplified and the manufacturing cost can be reduced.

In addition, the inner peripheral surface 12b is provided with a draft angle so as to expand the inner diameter toward the rear end side, so that the first inclined surface 12b5a becomes a surface substantially parallel to the axis C. In addition, the first inclined surface 12b5a, the second inclined surface 12b5b, and the third inclined surface 12b5c are formed in a concave shape along the circumference centered on the axis C.

The first inclined surface 12b5a and the inner peripheral surface 12b are smoothly continuous through the connecting surface 12b6. Furthermore, a rounded corner portion 12b4b is provided between the third inclined surface 12b5c and the rear end surface 12b4a of the protruding portion 12b4. In this embodiment, the protrusion amount of the rear end of the third inclined surface 12b5c, which has the largest protrusion amount from the inner circumferential surface 12b, is slightly larger than the step amount between the inner circumferential surface 12b and the inner circumferential surface 31d (third The rear end of the inclined surface 12b5c is located slightly closer to the axis C side than the inner circumferential surface 31d), and a rounded corner portion 12b4b is provided to prevent hooking when the blood collection tube 100 is inserted.

Furthermore, in this embodiment, the protruding portion 12b4 is provided at a predetermined interval D in the axial direction with respect to the fitting portion 31, thereby preventing the rolled end portion of the label 200, the protruding piece 124, etc. from being caught in the fitting portion. part 31 and the protruding part 12b4.

That is, it is difficult to completely position the holding member 30 in the axial direction with respect to the holder body 10. Even if the fitting portion 31 and the protruding portion 12b4 are positioned so as to be in close contact, a slight gap may occur. When the label 200, the protruding piece 124, etc., if they accidentally enter the gap, will be caught between the fitting portion 31 and the protruding portion 12b4, resulting in a stronger hook. Therefore, in this embodiment, by providing the gap D between the fitting portion 31 and the protruding portion 12b4, even if the label 200, the protruding piece 124, etc. accidentally enter between them, they will not be caught between them. and can escape, this can more reliably prevent the label 200, the protrusion 124, etc. from being caught.

In this embodiment, in particular, the distance D is provided between the first recessed portion 12b1 and the protruding portion 12b4 of the fitting portion 31, thereby reliably providing the distance D between the fitting portion 31 and the protruding portion 12b4. In addition, the label 200, the protruding piece 124, etc. are guided away from the inner peripheral surface 12b by the inclined surface 12b5, so the possibility of entering between the fitting part 31 and the first recessed part 12b1 becomes very low.

The size of the distance D is not particularly limited, and can be set appropriately according to the protruding amount of the protruding portion 12b4, the thickness of members such as the label 200 and the protruding piece 124 that are expected to be caught, and the like. For general blood collection tubes 100 and labels 200, the distance D is preferably 0.2 mm to 0.4 mm. In this embodiment, the distance D is set to 0.3 mm.

The structure of the protruding portion 12b4 is not particularly limited. For example, the rounded portion 12b4b may be omitted, or an inclined surface gradually approaching the inner peripheral surface 12b toward the rear end side (the fitting portion 31 side) may be provided instead of the rounded portion 12b4b. . The structure of the inclined surface 12b5 is not particularly limited. For example, the inclined surface 12b5 may have a constant inclination angle, or may have an inclination angle varying in a curved shape.

The maximum protruding amount of the protruding portion 12b4 is preferably the same as or larger than the step difference between the inner peripheral surface 12b and the inner peripheral surface 31d, but is preferably smaller than the step difference between the inner peripheral surface 12b and the inner peripheral surface 31d. Can. In addition, appropriate rounded portions and chamfered portions can be provided on the front end side of the inner peripheral surface 31d of the fitting portion 31. Furthermore, the first recessed portion 12b1 may be configured so that the inner peripheral surface 12b and the inner peripheral surface 31d are substantially flush, or the first recessed portion 12b1 may be omitted.

The above is a description of the embodiments of the present invention. The blood collection tube holder of the present invention is not limited to the above-described embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention. For example, the shape and arrangement of each part of the blood collection tube holder 1 are not limited to the shape and arrangement shown in the above embodiment, and various known shapes and arrangements can be adopted.

In addition, the functions and effects shown in the above embodiments are only the best functions and effects produced by the present invention, and the functions and effects based on the present invention are not limited to these.

1: Blood collection tube holder 10: Retainer body 11: Bottom 12b: Inner peripheral surface of retainer body 31: Chimeric part 32: Crimping part 32a: Base end side 32b: Front end side 32c: medial side 32f: Low rigidity part 12b3c: 4th contact part 12b4:Protrusion 12b5: Inclined surface of protrusion 100: blood collection tube D:interval

[Fig. 1A] is a top view of a blood collection tube holder according to an embodiment of the present invention. [Fig. 1B] It is a front view of the blood collection tube holder. [Fig. 2] A cross-sectional view taken along line I-I in Fig. 1A. [Fig. 3] is a front view of the holding member. [Fig. 4] is a cross-sectional view showing a state after the blood collection tube is inserted into the blood collection tube holder. [Fig. 5] is a cross-sectional view showing a state after the blood collection tube is inserted into the blood collection tube holder. [Fig. 6] is a cross-sectional view showing the structure of the protruding portion.

1: Blood collection tube holder

11: Bottom

11a:Through hole

11b: Front end surface

11c: Rear end face

11c1: Tongue-shaped protruding piece

11c1a: Inclined surface

11c2: 1st contact part

12: Barrel part

12a: Outer peripheral surface

12a1: Anti-slip rib

12b: Inner peripheral surface of retainer body

12b1: 1st concave part

12b1a: Positioning recess

12b2: 2nd concave part

12b3:butting rib

12b3a: 2nd contact part

12b3b: 3rd contact part

12b3c: 4th contact part

12b3d:Protrusion

12b4:Protrusion

12b4a: rear end face

12b4b: rounded corners

12b5: Inclined surface of protrusion

12b6:Connection surface

13: Fixed part

13a:Female thread

14:Outer wall part

15:Connection part

16:Flange

16a: Front end face

16a1: Anti-slip recess

20:Adapter

21: Needle for connection

22: base

22a: Male thread

22b: Flange part

22c: Male connector

23: Casing

30:Keep components

31: Chimeric part

31a: Positioning convex part

31c: Trapezoidal part

31d: Inner peripheral surface

32: Crimping part

32a: Base end side

32b: Front end side

32c: medial surface

32d: outer side

32d1: Inclined surface

32d2: rounded corners

32e: Reinforcement film

32f: Low rigidity part

100: blood collection tube

C: Axis

Claims (5)

A blood collection tube holder is provided with a holder body, a crimping part and a contact part, The aforementioned holder main body is configured in a bottomed cylindrical shape having a bottom on the front end side, and accommodates at least a part of the blood collection tube, The crimping portion is disposed in the holder main body, and elastically deforms as the blood collection tube is inserted into the holder main body, thereby crimping the outer peripheral surface of the blood collection tube, The contact portion is disposed in the holder body, and contacts the blood collection tube from the bottom side to position the blood collection tube in the axial direction, The crimping portion has a base end side portion and a front end side portion. The base end side portion extends from the inner peripheral surface side of the retainer body toward the bottom side and gradually moves away from the inner peripheral surface. The front end side portion, It is bent from the front end of the base end side portion in such a manner that the inner circumferential surface side is recessed and then extends toward the bottom side, The contact portion is provided to position the blood collection tube at a position where only the proximal end side portion is in pressure contact with the outer peripheral surface of the blood collection tube when the blood collection tube is of a specific type. The blood collection tube holder as described in claim 1, wherein, The crimping portion has a low-rigidity portion that partially reduces rigidity. The blood collection tube holder as described in claim 2, wherein, The low rigidity portion is provided at least on the proximal end side portion. The blood collection tube holder as described in claim 1, wherein, The crimping portion is textured at least on the surface that contacts the blood collection tube. The blood collection tube holder according to claim 1, which has a cylindrical fitting part and a protruding part, The cylindrical fitting portion is integrally formed with the crimping portion and fitted into the retainer main body, The protruding portion is provided on the inner circumferential surface of the retainer body at a predetermined distance from the fitting portion in the axial direction, and has an inclined surface that gradually moves away from the inner circumferential surface toward the fitting portion side.

Images