JP2007167578A - Blood collecting container holder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a blood collecting container holder safely disposing a used double-ended needle. <P>SOLUTION: This blood collecting container holder 1 is used in a mount state being mounted with the double-ended needle 10 having a first needle tube 11 having a needlepoint 12 at its tip, a hub 13 installed at the proximal end of the first needle tube 11, and a second needle tube provided at the proximal end of the hub 13 and communicated with the first needle tube 11. This blood collecting container holder 1 is provided with a holder body 20 fixing the hub 13, a protector 25 supported to the holder body 20 in the mount state in such a manner as rotationally turning to a first position of covering the first needle tube and a second position of being separated from the first needle tube 11, and a locking means 32, when the protector 25 is in the first position, retaining its state. The locking means 32 has a first engagement part 24 provided in the holder body 20 and a second engagement part 29 provided in the protector 25 and, when the protector is in the first position, engaged with the first engagement part 24. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention provides a distal hollow needle having a needle tip at the distal end, a hub installed on the proximal end side of the distal hollow needle, a proximal end side of the hub, and communicates with the distal hollow needle. The present invention relates to a blood collection container holder that is used in a mounted state with a double-ended needle (blood collection needle) equipped with a proximal hollow needle.

  Conventionally, when collecting blood from a subject (patient), a double-ended needle (blood sampling needle) is attached to the distal end of a blood sampling container holder, and one end of the blood vessel is punctured into the blood vessel of the subject. Thereafter, it is performed by attaching a blood collection container whose inside is vacuumed or decompressed.

  By the way, after blood collection for the subject is completed, the double-ended needle and the blood collection container become unnecessary. At this time, each is individually disposed of. However, if the double-ended needles are disposed as they are, there is a risk that an accident may occur in which a disposal operator or the like accidentally pierces a finger or the like with the needle tip. In particular, since blood adheres and remains on the surface and the inside of the needle, there is a risk that infection will occur due to such a sting.

  Therefore, in order to solve such a problem, the protector (protective housing) is rotated so that the protector is approached from the lateral direction with respect to the used needle tube, and the needle tube is housed in the protector through the opening of the protector. The container holder for blood collection comprised in this way is disclosed (for example, refer patent document 1).

  In such a protector, an engagement piece (lock mechanism) that engages with a part of the needle tube is provided inside the protector so that the stored state covering the needle tube is maintained.

  The engaging piece is configured so that the engaging piece comes into contact with a part of the needle tube when the protector is rotated to cover the needle tube, and further presses the needle tube to get over the needle tube to be engaged. Has been.

  However, in the protector having such a configuration, the needle tube is bent by the pressing of the engaging piece, and when the engaging piece is engaged with the needle tube, the restoring force of the bent needle tube itself causes the needle tube to be bent at the distal end portion. There was a risk of adhering and remaining on the blood of the subject's blood or chemicals and adhering to the operator.

  For this reason, an engagement piece cannot get over a needle tube, and engagement with an engagement piece and a needle tube may become impossible. Further, even if the engagement piece gets over the needle tube, the needle tube may be plastically deformed and bent, and the needle tip may protrude from the protector.

Japanese Patent Publication No. 6-503987

  An object of the present invention is to provide a blood collection container holder capable of safely discarding a used double-ended needle.

  Such an object is achieved by the present inventions (1) to (5) below. Moreover, it is preferable that it is following (6)-(8).

(1) A distal-side hollow needle having a needle tip at the distal end, a hub installed on the proximal end side of the distal-side hollow needle, and a base provided on the proximal end side of the hub and communicating with the distal-side hollow needle A blood collection container holder used in a wearing state equipped with a double-ended needle comprising an end-side hollow needle,
A holder body having a fixing portion for fixing the hub;
The holder body in the mounted state can be rotated to a first position that covers at least the needle tip of the distal-side hollow needle and a second position that is separated from the distal-side hollow needle. A protector supported via a support,
Lock means for holding the protector when the protector is in the first position;
The locking means is provided on the protector main body and a first engaging portion provided on the holder body, and is engaged with the first engaging portion when the protector is in the first position. The first engaging portion and the second engaging portion are engaged with each other, so that the state where the protector is in the first position is maintained. A container holder for blood collection.

(2) The first engaging portion is composed of an elastically deformable first small piece portion having a first claw protruding toward the central axis side of the fixed portion or the opposite side thereof,
The second engaging portion is composed of an elastically deformable second small piece portion having a second claw protruding in a direction opposite to the protruding direction of the first claw,
The blood collection container holder according to (1), wherein the first claw and the second claw engage with each other when the protector is in the first position.

(3) The first engaging portion has two first small piece portions, and the two first small piece portions are disposed to face an edge portion of the fixed portion,
The second engaging portion has two second small piece portions, and the two second small piece portions respectively correspond to the first small piece portions, respectively, so as to correspond to the first small piece portions. The container holder for blood collection according to the above (2), which is disposed in the container.

  (4) The protector has a pair of opposing side wall portions and a connecting portion for connecting the both side wall portions at one end thereof, and the cross-sectional shape is substantially U-shaped (1 The container holder for blood collection according to any one of (1) to (3).

  (5) The rotation support portion is formed integrally with the holder main body and the protector, and has a thin portion having a thickness smaller than that of the holder main body side and the protector side, and the thin portion is bent. The blood collection container holder according to any one of (1) to (4), wherein the protector rotates with respect to the holder body by being deformed.

  (6) The first engaging portion according to any one of (1) to (5), wherein the first engaging portion is positioned outside the second engaging portion when engaged with the second engaging portion. Blood collection container holder.

  (7) The protector according to (4), wherein when the protector is in the first position, the distal end side hollow needle is accommodated substantially in a space surrounded by the both side wall portions and the connecting portion. Blood collection container holder.

  (8) The blood sampling container holder according to any one of (1) to (7), wherein the double-ended needle is irreversibly attached to the holder body.

  According to the blood collection container holder of the present invention, the lock means does not come into contact with the distal hollow needle when the protector covers the distal hollow needle, so that the distal hollow needle can be reliably covered. At the same time, this state is reliably maintained by the locking means. Thereby, the blood collection container equipped with the used double-ended needle can be safely discarded.

  Further, when the protector covers the tip of the tip side hollow needle, the locking means does not contact the tip side hollow needle, so that bending (deformation) of the tip side hollow needle due to the contact of the locking means is reliably prevented, For example, it is ensured that the needle tip protrudes from the protector. Thereby, the blood collection container equipped with the used double-ended needle can be safely discarded.

  Further, the protector has a pair of side wall portions opposed to each other and a connecting portion for connecting the both side wall portions at one end thereof, and the cross-sectional shape is substantially U-shaped, and the protector is disposed on both sides. When almost all of the tip-side hollow needle can be stored in the space surrounded by the wall and the connecting part, it is possible to prevent unintentional contact with any part of the tip-side hollow needle. Therefore, the blood collection container equipped with the used double-ended needle can be safely discarded.

  In addition, when the double-ended needle is irreversibly attached to the holder body, the double-ended needle is surely prevented from being unintentionally detached from the holder body, thereby preventing the double-ended needle from being reused and used. A blood collection container equipped with a double-ended needle can be safely discarded.

Hereinafter, a blood collection container holder of the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.
1 and 2 are perspective views showing a state in which a double-ended needle is attached to the blood collection container holder of the present invention (FIG. 1 shows the protector in the second position, and FIG. 2 shows the protector in the first position. 3 is a sectional view taken along line AA in FIG. 1, FIG. 4 is a sectional view taken along line BB in FIG. 1, and FIG. 5 is a sectional view taken along line CC in FIG. It is.
In the following, for convenience of explanation, the upper side in FIGS. 1 to 5 is referred to as a “tip” and the lower side is referred to as a “base end”. In FIGS. 4 and 5, the double-ended needle is omitted.

  A blood collection container holder 1 shown in each figure is used in a mounted state in which a double-ended needle 10 that punctures a living body surface during blood collection is irreversibly mounted.

First, before describing the blood collection container holder 1, the double-ended needle 10 will be described.
The double-ended needle 10 includes a first needle tube (tip-side hollow needle) 11 having a sharp needle tip 12 at the tip, a hub 13 fixed to the base end portion (base end side) of the first needle tube 11, a hub 13 has a second needle tube (base end side hollow needle) 14 fixed to the base end portion (base end side).

  The first needle tube 11 is formed so as to protrude toward the distal end, and is a part where a needle surface 12 punctures the surface of a living body and a blood vessel.

  The second needle tube 14 is formed so as to project toward the proximal direction, and has a sharp needle tip (not shown) at the end (base end), like the first needle tube. The second needle tube 14 is a portion that punctures a stopper that seals the mouth of a blood collection container for storing blood whose inside is vacuumed or decompressed at the needle tip.

  As shown in FIG. 3, the second needle tube 14 is usually provided with an encapsulating member 30 that encapsulates at least the needle tip. The enveloping member 30 plays a role of preventing contamination of the needle tip of the second needle tube 14 when not in use. The encapsulating member 30 is composed of a film made of various rubber materials such as natural rubber, isoprene rubber, butadiene rubber, silicone rubber, and latex rubber, and is easily formed by the needle tip of the second needle tube 14. Those that can be pierced are preferably used.

  Each of the first needle tube 11 and the second needle tube 14 is a hollow needle and is made of, for example, a metal material such as stainless steel, aluminum or an aluminum alloy, titanium or a titanium alloy. The shape of the needle tip 12 of the first needle tube 11 (the same applies to the needle tip of the second needle tube 14) is not particularly limited, and in this embodiment, a blade inclined at a predetermined angle with respect to the axis of the first needle tube 11 It has a shape with a surface.

  In the double-ended needle 10, the first needle tube 11 communicates with the second needle tube 14. When the second needle tube 14 is connected to the blood collection container, the first needle tube 11 is removed from the first needle tube 11 by its vacuum or pressure reducing action. The blood from the collected blood vessel can be collected in a blood collection container via the second needle tube 14.

  The method for fixing the first needle tube 11 and the second needle tube 14 to the hub 13 is not particularly limited, and examples thereof include caulking, fusion (thermal fusion, high frequency fusion, etc.), adhesion using an adhesive, and the like. Can be mentioned.

  The hub 13 is composed of a substantially cylindrical member, and is preferably composed of a transparent (colorless and transparent), colored transparent or translucent resin to ensure internal visibility.

  The hub 13 includes a hub main body 131 whose outer diameter is a columnar shape, a tapered portion 132 formed at the proximal end of the hub main body 131, a flange 15 formed in the middle of the hub main body 131, and an outer periphery of the hub main body 131. And a plurality of (four in the configuration of FIGS. 1 to 3) ribs 16 formed in the portion.

  The taper portion 132 is a portion where the inner diameter gradually decreases in the proximal direction. In addition, the outer diameter of the tip of the taper portion 132 is set to be larger than the outer diameter of the hub body 131 near the tip of the taper portion 132, thereby causing a step between the taper portion 132 and the hub body 131 ( Hereinafter, the portion where the step is generated is referred to as “stepped portion 133”). The stepped portion 133 engages with the blood collection container holder 1 in the mounted state.

  The flange 15 is a disk-shaped part protruding in the outer peripheral direction. In the mounted state, the flange 15 comes into contact with the convex portion 202 a of the hole 202 of the blood collection container holder 1. This can prevent the double-ended needle 10 from wobbling.

  Further, a small flange 151 having a diameter smaller than that of the flange 15 is further provided on the base end surface of the flange 15, and a plurality of (for example, four) small protrusions 152 protruding in the base end direction are provided on the base end surface. Yes.

  Further, four plate-like ribs 16 are radially formed on the outer peripheral portion of the hub 13 on the front end side. The rib 16 can be engaged with an inner peripheral surface of a cap (not shown) that covers the entire first needle tube 11 before the first needle tube 11 is used, and can maintain the engaged state. In the engaged state, unintentional puncture by the first needle tube 11 can be prevented, and the first needle tube 11 can be kept hygienic.

Next, the blood collection container holder 1 will be described.
A blood collection container holder 1 shown in FIG. 1 (similarly in FIGS. 2 to 5) is rotatable with respect to a holder main body 20 for fixing the hub 13 of the double-ended needle 10 and the holder main 20, and a rotation support portion 31. And a protector 25 supported via the cable and a lock means 32.

  The blood collection container holder 1 in the attached state is punctured by the first needle tube 11 in a state where the protector 25 does not cover the first needle tube 11 (the state shown in FIG. 1). The blood collection container holder 1 in the mounted state is a state in which the protector 25 covers the first needle tube 11 after puncturing the living body surface with the first needle tube 11, that is, after the first needle tube 11 is used. In the state shown in FIG. 2, it is discarded together with the double-ended needle 10.

Hereinafter, the configuration of each unit will be described.
The holder main body 20 has a bottomed cylindrical shape whose base end is open (opened).

  As shown in FIGS. 3 to 5, the top plate 201 of the holder body 20 has a ring shape in which a hole 202 is formed at the center thereof.

  A cylindrical body 22 is formed inside the holder main body 20 concentrically with the hole 202. The cylindrical body 22 has a step portion 23 in which the inner diameter of the base end portion is reduced. The step portion 23 engages with the step portion 133 of the hub 13 of the double-ended needle 10 in the mounted state (see FIG. 3). As a result, the double-ended needle 10 is irreversibly attached to the blood collection container holder 1 (holder body 20), and thus the double-ended needle 10 is prevented from being unintentionally detached from the blood collection container holder 1. The Therefore, the used double-ended needle 10 can be safely discarded together with the blood collection container holder 1.

  Further, the cylindrical body 22 is formed with a seat portion 221 on which the proximal end surface of the small flange 151 is installed. A large number of protrusions 221 a are provided on the surface of the seat portion 221. When the small flange 151 comes into contact with the seat portion 221 in the mounted state, each small projection 152 is locked between the two projections 221a of the seat portion 221, so the axis of the double-ended needle 10 with respect to the blood collection container holder 1 Rotation can be prevented.

  As described above, in the blood collection container holder 1, the portion constituted by the top plate 201 and the cylindrical body 22 becomes the “fixing portion 21” that fixes the hub 13.

  A protector 25 is supported on the holder body 20 via a rotation support portion 31. The rotation support part 31 will be described later.

  The protector 25 is tilted (tilted) approximately 90 degrees from the first position (see FIG. 2) covering at least the needle tip 12 of the first needle tube 11 with respect to the holder body 20 in the mounted state. It can be rotated to a second position (see FIG. 1) that is separated from the first needle tube 11. Hereinafter, the state in which the protector 25 is in the first position is referred to as “standing state (covered state)”, and the state in which the protector 25 is in the second position is referred to as “prone state (puncture possible state)”.

  As shown in FIG. 1 and FIG. 2, the protector 25 is provided at the longitudinal edge of both the back wall 255 and the back wall 255, and a pair of opposed long side wall portions 251 a and 251 b and both side walls. It is comprised by the connection part 252 which connects the part 251a, 251b at those one end sides, and the cross-sectional shape has comprised the substantially U shape. Moreover, both side wall parts 251a and 251b are installed substantially in parallel.

  The protector 25 having such a configuration is configured to insert and store almost the entire first needle tube 11 in a space 253 surrounded by the side wall portions 251 and 251 and the connecting portion 252 in the standing state. . Thus, in an upright state, not only the needle tip 12 of the first needle tube 11 but also the portion other than the needle tip 12 is prevented from being inadvertently contacted. Even if chemicals are attached, the double-ended needle 10 can be safely discarded.

  Further, as shown in FIG. 2, the protector 25 is preferably provided with a hub covering portion 26 that covers the hub 13 exposed from the fixing portion 21 in the standing state. The hub covering portion 26 is formed to have a larger outer shape than the end portion 254 side of the protector 25. Thereby, the hub 13 exposed from the fixing portion 21 can be reliably covered in the standing state.

  Further, the length of the protector 25 is such that the needle tip 12 is positioned on the proximal end side with respect to the end portion 254 of the connecting portion 252 of the protector 25 in the standing state, and the needle tip 12 is separated from the end portion 254 by a predetermined distance. The length is such that it does not contact 254.

  Further, by holding the protector 25 and rotating the protector 25 from the prone state to the standing state, the first needle tube 11 enters the space 253 of the protector 25 from the U-shaped opening of the protector 25. That is, by grasping the protector 25 and rotating the protector 25 from the prone state to the standing state, the protector 25 approaches the first needle tube 11 from the side (left and right direction in FIG. 2), and the first 1 needle tube 11 is covered.

  Thereby, it is possible to prevent the operator's hand from being positioned on the needle tip 12 side, and thus it is possible to prevent the needle tip 12 from being unintentionally punctured.

  Note that when the protector 25 covers the first needle tube 11, the inner surface of the back wall 255 and the first needle tube 11 may be brought into contact with each other. As a result, the first needle tube 11 is bent and the protector 25 is forced to return to the second state, and the first engagement portion 24 and the second engagement portion 29 described later, or the locking surface 242 are described. And the second engagement portion 29 become stronger and can be fixed more firmly.

  The rotation support portion 31 is formed integrally with the outer peripheral portion of the holder main body 20 and the hub covering portion 26 of the protector 25, and connects the holder main body 20 and the protector 25.

  The rotation support part 31 includes a holder body side support part (part) 311 located on the holder body 20 side, a protector side support part (part) 312 located on the protector 25 side, a holder body side support part 311 and a protector. It is comprised by the thin part 27 located between the side support parts 312. FIG.

  The thin portion 27 is set to be thinner than the holder main body side support portion 311 and the protector side support portion 312. When the thin portion 27 is bent and deformed (see FIG. 2), the protector 25 is reliably rotated with respect to the holder body 20.

  The blood collection container holder 1 includes a lock unit 32 that holds the protector 25 in an upright state.

  The lock means 32 includes a first engagement portion 24 formed integrally with the holder body 20 and a second engagement portion 29 formed integrally with the protector 25. The blood collection container holder 1 is configured such that the upright state of the protector 25 is maintained by the engagement of the first engagement portion 24 and the second engagement portion 29 (FIGS. 2 and 5). reference).

  As shown in FIGS. 4 and 5, the first engagement portion 24 includes two first small pieces 24 a and 24 b that are arranged to face the edge 211 of the fixed portion 21. Since the shapes of the first small piece portions 24a and 24b are substantially the same, the first small piece portion 24a will be described below representatively.

The first small piece portion 24 a is elastically deformable having a first claw 241.
The first small piece portion 24a is cantilevered by the edge 211 of the fixed portion 21 with its base end as a fixed end and its distal end as a movable end, and the movable end is elastically displaced (deformed) to the outside of the fixed portion 21. )can do.

  The first small piece 24a is formed with a first claw 241 that protrudes toward the inner side (center axis side) of the fixed portion 21. The first claw 241 has a tapered surface 243 formed at its distal end and a locking surface 242 formed at the proximal end.

The tapered surface 243 is a tapered surface. Since the tapered surface 243 is formed, an operation up to the engagement between the first engagement portion 24 and the second engagement portion 29 can be easily performed.
The locking surface 242 is a surface curved in the distal direction.

Next, the second engagement portion 29 will be described.
The second engaging portion 29 is composed of two second small piece portions 29a and 29b arranged to face the end portions of the side wall portions 251 and 251. The second small piece portion 29a is formed at a position corresponding to the first small piece portion 24a, and the second small piece portion 29b is formed at a position corresponding to the first small piece portion 24b. Since the shapes of the second small piece portions 29a and 29b are substantially the same, the second small piece portion 29a will be representatively described below.

The second small piece portion 29 a is elastically deformable and has a second claw 291.
The second small piece portion 29a is cantilevered on the right side wall portion 251 in FIG. 5 (also in FIG. 4) with one end as a fixed end and the other end as a movable end, and the movable end is elastically protected by the protector 25. It can be displaced (deformed) inside.

  Further, the second small piece portion 29 a is formed with a second claw 291 that protrudes in the direction opposite to the protruding direction of the first claw 241, that is, toward the outside of the protector 25. The second claw 291 has a tapered surface 293 formed on the movable end side (base end side in FIG. 5) and a locking surface 292 formed on the fixed end side (tip end side in FIG. 5). have.

  The tapered surface 293 is a tapered surface. Since the tapered surface 293 is formed, an operation up to the engagement between the first engaging portion 24 and the second engaging portion 29 can be easily performed.

The locking surface 292 is a surface curved to the fixed end side.
The first engaging portion 24 and the second engaging portion 29 configured as described above are engaged as follows.

  When the protector 25 in the prone state is erected in the mounted blood collection container holder 1, the tapered surface 293 of each second claw 291 comes into contact with the tapered surface 243 of each first claw 241. Further, when the protector 25 is erected, each taper surface 243 and each taper surface 293 receive a reaction force with each other, and each first claw 241 is pressed and deformed to the outside of the fixed portion 21. Each second claw 291 is pressed and deformed inside the protector 25. At that time, the tapered surface 293 of each second claw 291 slides on the tapered surface 243 of each first claw 241.

  Thereafter, when the locking surface 292 of each second claw 291 reaches the locking surface 242 of each first claw 241, and each second claw 291 passes (overrides) each first claw 241, The 1st nail | claw 241 and each 2nd nail | claw 291 restore | restore to the state before a deformation | transformation with an elastic force. As a result, the locking surface 242 of each first claw 241 and the locking surface 292 of each second claw 291 are engaged. At this time, the protector 25 is in an upright state.

  By engaging the first engaging portion 24 and the second engaging portion 29 in this manner, the protector 25 in the standing state is reliably prevented from being undesirably lying down. Thereby, the standing state of the protector 25 is reliably maintained, and the used double-ended needle 10 can be safely discarded.

  As shown in FIG. 5, when the first small piece portion 24a of the first engaging portion 24 is engaged with the second small piece portion 29a of the second engaging portion 29, the second small piece portion 29a is engaged. Located on the outside. Further, when the first small piece portion 24b of the first engaging portion 24 is engaged with the second small piece portion 29b of the second engaging portion 29, the first small piece portion 24b is positioned outside the second small piece portion 29b. .

  As a result, the first engaging portion 24 and the second engaging portion 29 are difficult to touch, so that the standing state is reliably maintained.

  Further, as described above, since the rotation support portion 31 (thin wall portion 27) is integrally formed with the holder body 20 and the protector 25, the protector 25 in the standing state is bent down by the restoring force of the thin wall portion 27. It is energized in the direction of falling. Thereby, the 1st engaging part 24 and the 2nd engaging part 29 engage more reliably and firmly, and, thereby, the standing state of the protector 25 can be maintained more reliably.

  Moreover, since the holder main body 20 and the protector 25 are integrally formed via the rotation support part 31, the number of parts which comprise the blood-collecting container holder 1 can be suppressed, Therefore, the said blood-collecting container The holder 1 can be manufactured easily.

  The constituent materials of the holder main body 20, the protector 25, the rotation support portion 31, and the lock means 32 are not particularly limited, and are, for example, polyolefins such as polyethylene, polypropylene, polybutadiene, and ethylene-vinyl acetate copolymer. Polyester such as polyvinyl chloride, polyurethane, polystyrene, polymethyl methacrylate, polycarbonate, polyamide, polyethylene terephthalate, polybutylene terephthalate, acrylic resin, ABS resin, AS resin, ionomer, polyacetal, polyphenylene sulfide, polyether ether ketone, etc. Various resin materials are mentioned.

The blood collection container holder 1 configured as described above is used as follows.
First, the blood collection container holder 1 with the protector 25 lying down is prepared.

  The double-ended needle 10 is attached to the fixing portion 21 of the blood collection container holder 1 (holder body 20) from the second needle tube 14 side.

  The blood collection container holder 1 to which the double-ended needle 10 is attached is gripped, and the living body surface is punctured by the double-ended needle 10 (blood vessel is punctured).

  A blood collection container (blood collection tube) (not shown) whose inside is vacuumed or decompressed is attached to the holder body 20 of the blood collection container holder 1 in the attached state from its proximal end side. At this time, blood is stored in the blood collection container via the double-ended needle 10 by a vacuum or a reduced pressure action. Thereafter, the blood collection container is removed. Repeat installation and removal of several other blood collection containers as necessary.

  Next, after the blood collection container holder 1 from which the blood collection container has been removed is pulled out from the surface of the living body, it is brought into an upright state and discarded in this state.

  In addition, although the number of formation of the 1st small piece part and the 2nd small piece part is two in the structure of illustration, it is not limited to this, For example, one, three, or more may be sufficient.

  Moreover, although the 1st nail | claw 241 of the 1st small piece parts 24a and 24b each protrudes toward the inner side of the fixing | fixed part 21 in the structure of illustration, it is not limited to this, For example, the fixing | fixed part 21 It may protrude toward the outside. When each first claw 241 protrudes toward the outside of the fixed portion 21, each second claw 291 is in a direction opposite to the protruding direction of each first claw 241, that is, inside the protector 25. It will be protruding.

  As mentioned above, although the illustrated embodiment of the blood collection container holder of the present invention has been described, the present invention is not limited to this, and the respective parts constituting the blood collection container holder are arbitrary capable of exhibiting the same function. It can be replaced with the configuration of Moreover, arbitrary components may be added.

  Further, the rotation support portion has a thin wall portion in the configuration shown in the drawing, but is not limited thereto. For example, the rotation support portion forms a hinge structure portion including a shaft and a bearing that supports the shaft. May be.

  Further, the blood collection container holder may have means for holding the protector when the protector is in the second position. By this means, the prone state of the protector is reliably maintained, and therefore, when the living body surface is punctured by the first needle tube, it is possible to reliably prevent the protector from rotating and obstructing the puncture.

  Further, the protector rotates about 90 degrees in the illustrated configuration, but is not limited to this, and may be rotated 180 degrees, for example. When the protector rotates 180 degrees, the protector falls down until the holder main body side support portion and the protector side support portion of the rotation support portion come into contact with each other. When the protector is in this state (the prone state), it is possible to reliably prevent the protector from interfering with the puncture when puncturing the living body surface with the first needle tube.

It is a perspective view which shows the state by which the double-ended needle was mounted | worn with the container holder for blood collection of this invention. It is a perspective view which shows the state by which the double-ended needle was mounted | worn with the container holder for blood collection of this invention. It is the sectional view on the AA line in FIG. It is the BB sectional view taken on the line in FIG. It is CC sectional view taken on the line in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Blood collection container holder 10 Double-ended needle 11 1st needle tube (front end side hollow needle)
12 Needle Point 13 Hub 131 Hub Body 132 Tapered Part 133 Stepped Part 14 Second Needle Tube (Base End Side Hollow Needle)
DESCRIPTION OF SYMBOLS 15 Flange 151 Small flange 152 Small protrusion 16 Rib 20 Holder main body 201 Top plate 202 Hole 202a Protruding part 21 Fixing part 211 Edge 22 Cylindrical body 221 Seat part 221a Protrusion 23 Step part 24 First engaging part 24a, 24b 1st 241 First claw 242 Locking surface 243 Tapered surface 25 Protector 251a, 251b Side wall portion 252 Connection portion 253 Space 254 End portion 255 Back wall 26 Hub covering portion 27 Thin portion 29 Second engaging portion 29a, 29b 2nd small piece part 291 2nd nail | claw 292 Locking surface 293 Tapered surface 30 Foreskin member 31 Rotation support part 311 Holder main body side support part (part)
312 Protector support (part)
32 Locking means

Claims (5)

A distal hollow needle having a needle tip at the distal end, a hub installed on the proximal end side of the distal hollow needle, and a proximal hollow provided on the proximal end side of the hub and communicating with the distal hollow needle A container holder for blood collection used in a wearing state equipped with a double-ended needle comprising a needle,
A holder body having a fixing portion for fixing the hub;
The holder body in the mounted state can be rotated to a first position that covers at least the needle tip of the distal-side hollow needle and a second position that is separated from the distal-side hollow needle. A protector supported via a support,
Lock means for holding the protector when the protector is in the first position;
The locking means is provided on the protector main body and a first engaging portion provided on the holder body, and is engaged with the first engaging portion when the protector is in the first position. The first engaging portion and the second engaging portion are engaged with each other, so that the state where the protector is in the first position is maintained. A container holder for blood collection. The first engaging portion is composed of an elastically deformable first small piece portion having a first claw protruding toward the central axis side of the fixing portion or the opposite side thereof,
The second engaging portion is composed of an elastically deformable second small piece portion having a second claw protruding in a direction opposite to the protruding direction of the first claw,
The blood collection container holder according to claim 1, wherein when the protector is in the first position, the first claw and the second claw engage with each other. The first engaging portion has two first small piece portions, and the two first small piece portions are arranged to face an edge portion of the fixed portion,
The second engaging portion has two second small piece portions, and the two second small piece portions respectively correspond to the first small piece portions, respectively, so as to correspond to the first small piece portions. The blood collection container holder according to claim 2, which is disposed in the area.   The said protector has a pair of side wall part which opposes, and a connection part which connects this both side wall part by those one end sides, and a cross-sectional shape makes a substantially U shape. The blood collection container holder according to any one of the above.   The rotation support part is formed integrally with the holder main body and the protector, and has a thin part with a thickness smaller than the holder main body side and the part on the protector side, and the thin part is bent and deformed. The blood collection container holder according to claim 1, wherein the protector rotates with respect to the holder body.

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