JP6519589B2 - Dispensing holder - Google Patents

Description

  TECHNICAL FIELD The present disclosure relates to a dispensing holder, and more particularly to a dispensing holder used for dispensing blood to a blood collection tube.

  When collecting a biological sample such as blood, blood collection is often performed using a vacuum blood collection tube holder attached with a blood collection needle and a vacuum blood collection tube. However, blood may not be collected using the holder and the vacuum blood collection tube depending on the examination item or the condition of the blood vessel of the subject. In such a case, after blood is collected by a syringe, it is necessary to dispense the blood into a vacuum blood collection tube or the like. However, when dispensing from a syringe to a vacuum blood collection tube, a needle stick accident or the like easily occurs, which is a serious problem. For this reason, various methods have been studied in order to prevent needlestick accidents during dispensing.

  For example, Patent Document 1 discloses a cap having a cap that can be put on a vacuum blood collection tube, a cannula attached in the cap, and a connection part attached to the cap and connecting the cannula and the tip of the syringe barrel. The holder is described.

  Further, Patent Document 2 describes a dedicated puncture needle provided with a screw portion and a dispensing holder having a connection portion to which the puncture needle can be screwed. After blood is collected using a dedicated puncture needle, if a puncture needle is connected to the connection part, the cap of the vacuum blood collection tube can be easily punctured.

Unexamined-Japanese-Patent No. 2007-522831 JP 2007-236541 A

  However, the dispensing holder described in Patent Document 1 has a problem that the syringe and the puncture needle have to be separated when connecting the syringe to the dispensing holder. When removing the puncture needle from the injection cylinder, a needle stick accident is likely to occur, and there is a serious problem in terms of safety.

  Moreover, the dispensing holder described in Patent Document 2 has a problem that blood must be collected using a dedicated puncture needle. In addition, there is also a problem that a needle prick accident easily occurs when the puncture needle is fixed to the dispensing holder.

  An object of the present disclosure is to realize a highly safe dispensing holder without using a special puncture needle.

  One aspect of the dispensing holder has an open end and a top plate facing the open end, and a cap portion into which a blood collection tube can be inserted from the open end side, and protrudes from the top plate in a direction opposite to the open end And a needle accommodating portion capable of accommodating the puncture needle so as not to move in the length direction, the needle accommodating portion being spaced apart from each other and configured by two side walls extending in a direction projecting from the top plate portion The top plate has a top plate opening provided at a portion corresponding to the groove, and when the puncture needle is accommodated in the needle housing, the tip of the puncture needle is the top plate opening Into the cap and do not protrude from the open end.

  In one aspect of the dispensing holder, the cap may have a side opening provided on the side, and the side opening may be integrated with the top plate opening and the groove to constitute a needle insertion slot.

  In one aspect of the dispensing holder, the cap portion and the needle storage portion may be separable.

  In one aspect of the dispensing holder, the needle housing portion may have a holding portion that engages with and holds the puncture needle at the end opposite to the cap portion.

  In one aspect of the dispensing holder, the needle holder may have a locking mechanism that inhibits the disengagement of the puncture needle once engaged.

  In one aspect of the dispensing holder, it may further comprise a leg that allows the groove to be self-standing.

  According to the dispensing holder of the present disclosure, excellent safety can be realized without using a special puncture needle.

It is a perspective view showing a dispensing holder concerning a 1st embodiment. (A)-(d) shows the dispensing holder concerning a 1st embodiment, (a) is a top view, (b) is a side view in IIb-IIb line, (c) is IIc- It is a sectional view in the IIc line, and (d) is a sectional view in the IId-IId line. It is a sectional view showing a dispensing holder concerning a 1st embodiment. (A)-(c) shows the dispensing holder which concerns on 2nd Embodiment, (a) is a perspective view which shows the state which connected the cap part and the needle accommodating part, (b) is a needle accommodating part It is a perspective view which shows (c) is a perspective view which shows a cap part. (A) And (b) is a sectional view showing an example of use of a dispensing holder concerning a 2nd embodiment, respectively. (A) And (b) is a sectional view showing an example of use of a dispensing holder concerning a 2nd embodiment, respectively.

First Embodiment
As shown in FIGS. 1 to 3, the dispensing holder 101 of the present embodiment includes a cap portion 110, a needle storage portion 120, and a leg portion 130. The cap portion 110 has a tubular shape having an open end 111 and a top plate portion 112. The cap unit 110 can insert a blood collection tube from the open end 111 side and can cover the blood collection tube. The needle accommodating portion 120 protrudes from the top plate portion 112 of the cap portion 110 to the opposite side to the opening end 111. The needle storage portion 120 can store the puncture needle 301 with the tip thereof on the cap portion 110 side. The leg portion 130 can support the cap portion 110 and the needle storage portion 120 on a flat surface. In this specification, the open end 111 side of the cap portion 110 is referred to as the front, the needle accommodation portion 120 side as the back, the direction connecting the front and the back is referred to as the length direction, and the direction intersecting the length direction is referred to as the transverse direction. Do. Further, the upward direction and the downward direction will be described based on a state in which the leg portion 130 is made to stand on its own.

  The needle accommodating portion 120 accommodates a puncture needle 301 having a needle body 302 and a needle hub 303 connected to the base of the needle body 302, as shown in FIG. The needle housing portion 120 has a groove portion 121 (channel) having a U-shaped cross section, which is constituted by two side walls 120a and 120b facing each other and a bottom surface 120c connecting the two side walls 120a and 120b at the lower end. At the rear end of the needle storage portion 120, a holding portion 122 for holding the puncture needle 301 stored in the needle storage portion 120 is provided.

  The holding unit 122 holds the puncture needle 301 housed in the needle housing unit 120 and regulates at least the movement in the longitudinal direction. Specifically, in the holding portion 122, the distance between the side walls 120a and 120b is wider than the other portions of the needle storage portion 120, and the position of the bottom surface 120c is also lower than the other portions of the needle storage portion 120. . Therefore, the needle hub 303 of the puncture needle 301 can be inserted. In the vicinity of the rear end of the holding portion 122, the side walls 120a and 120b are provided with a protrusion 124 projecting inward and a groove following it. As a result, the side walls 120 a and 120 b and the bottom surface 120 c have a C-shaped cross section that matches the shape of the needle hub 303. The C-shaped cross section allows the inserted needle hub 303 to be engaged with the holding portion 122, and its movement can be restricted.

  Sidewalls 120a and 120b are thicker at their rear ends than at other portions, and form stoppers 125 that restrict the rearward movement of puncture needle 301. By providing the retainer 125, the backward movement of the puncture needle 301 can be more reliably restricted, and can be held more stably. Further, a claw portion 126 is provided on the cap portion 110 side of the needle housing portion 120. The claw portion 126 abuts on the needle body 302 and restricts the upward movement of the puncture needle 301. By providing the claws 126, the puncture needle 301 can be held more stably. In addition, the claw portion 126 functions as a lock mechanism that inhibits removal of the puncture needle 301 stored in the needle storage portion 120. Therefore, it becomes difficult to remove the puncture needle 301 from the dispensing holder 101, and the effect of preventing reuse of the dispensing holder 101 can also be obtained. However, the claws 126 may not be provided. In addition, it is also possible to provide a claw that comes in contact with the needle hub 303 instead of the needle body 302.

  The upper end portion of the needle housing portion 120 is an opening, and is a groove portion 121 connecting both end portions in the longitudinal direction of the needle housing portion 120. The side surface 113 of the cap 110 is provided with a side opening 114 integrated with the groove 121. In addition, a notch-shaped top plate opening 112 a is provided at a position corresponding to the groove 121 of the needle housing portion 120 in the top plate 112. The side opening 114 is integral with the top plate opening 112 a. The groove portion 121, the top plate opening portion 112a and the side surface opening portion 114 constitute a needle insertion slot 128 which extends from the rear end of the needle housing portion 120 beyond the top plate portion 112 of the cap portion 110 to the opening end 111 side.

  The length of the needle insertion slot 128 is designed to be longer than the length of the puncture needle 301. Therefore, the puncture needle 301 can be inserted from above into the needle insertion slot 128 and held by the holding portion 122 with the length direction of the puncture needle 301 aligned with the length direction of the dispensing holder 101. When the puncture needle 301 is stored in the needle storage unit 120, it is not necessary to move the puncture needle forward, which is the direction in which the puncture needle 301 is to be punctured. From the viewpoint of the strength of the dispensing holder 101, the side opening 114 preferably does not reach the open end 111 of the cap 110. However, the side opening 114 may reach the opening end 111 of the cap 110.

  The length of the needle storage portion 120 is designed to be shorter than the length of the puncture needle 301 to be stored, and the combined length of the needle storage portion 120 and the cap portion 110 is designed to be longer than the length of the puncture needle 301 ing. Therefore, when the puncture needle 301 is held in the holding portion 122 and the puncture needle 301 is stored in the needle storage portion 120, the tip of the puncture needle 301 passes the top plate portion 112 of the cap portion 110 and reaches the cap portion 110. . However, the tip of the puncture needle 301 does not protrude from the open end 111 of the cap portion 110.

  Next, the usage method of the dispensing holder 101 of this embodiment is demonstrated. First, the dispensing holder 101 is allowed to stand on a flat surface such as a table. Subsequently, the puncture needle 301 of the syringe whose blood has been collected is connected to the dispensing holder 101. When connecting the puncture needle 301, the length direction of the puncture needle 301 is aligned with the length direction of the dispensing holder 101, the syringe is moved downward from above, and the puncture needle 301 is inserted from the needle insertion slot 128. Thereby, the needle hub 303 of the puncture needle 301 engages with the holding portion 122, and the puncture needle 301 is accommodated in the needle accommodation portion 120.

  Next, a blood collection tube is inserted from the open end 111. Thereby, the puncture needle 301 punctures the cap of the blood collection tube and reaches the inside of the blood collection tube. Subsequently, the blood in the syringe 305 is dispensed to a blood collection tube. Although a relatively large force is required when puncturing the cap, the puncture needle 301 can be punctured easily because it is held by the holding portion 122.

  When the puncture needle 301 attached to the injection cylinder 305 directly punctures the cap of the blood collection tube, a needle prick accident easily occurs. When the dispensing holder 101 of the present embodiment is used, the cap of the blood collection tube can be punctured while the tip of the puncture needle 301 is positioned inside the cap portion 110. For this reason, the possibility of occurrence of a needlestick accident can be extremely reduced. Further, since the puncture needle 301 is connected as it is to the dispensing holder 101 without removing the puncture needle 301 from the injection cylinder 305, there is no risk that a needlestick accident will occur when the puncture needle 301 is removed. Furthermore, the puncture needle 301 can be connected to the dispensing holder 101 by moving the puncture needle 301 not in the forward direction to puncture but in the vertical direction. For this reason, even when connecting the puncture needle 301 and the dispensing holder 101, a needlestick accident is unlikely to occur. In addition, after dispensing to the blood collection tube, the puncture needle 301 can be discarded as it is without removing it from the dispensing holder 101.

  Dispensing holder 101 of the present embodiment has legs 130 and can stand with needle insertion slot 128 upward. Therefore, with the dispensing holder 101 placed on a table or the like, the puncture needle 301 can be held without touching the dispensing holder 101 with a hand. Therefore, the dispensing can be performed more safely.

  In the present embodiment, the leg portion 130 is formed by the collar portions 131 and 132 provided on the open end 111 and the top plate portion 112 of the cap portion 110 and the support wall 133 provided on the lower side of the needle accommodating portion 120. ing. However, the present invention is not limited to this, and any configuration may be adopted as long as the dispensing holder 101 can be stably made to stand on its own. The height of the leg 130 is not particularly limited, but when the syringe is connected to the dispensing holder 101, the height at which the injection cylinder 305 contacts the plane on which the dispensing holder 101 is placed can be employed.

  The needle housing portion 120 may have any configuration as long as it can be held so that the tip of the puncture needle 301 reaches the inside of the cap portion 110 and can be inserted from the direction intersecting the direction in which the puncture needle 301 is punctured. For example, although the holding portion 122 is configured to hold the needle hub 303 by the C-shaped cross section having the protruding portion 124 and the stopper 125, a concave portion conforming to the shape of the needle hub 303 is provided. The configuration may be such that 303 is inserted. Further, as long as the movement of the puncture needle 301 can be restricted, the holding portion 122 may be engaged with the outer cylindrical portion or the like of the injection cylinder 305 to which the puncture needle 301 is connected instead of the puncture needle 301. The heights of the side walls 120a and 102b of the needle housing portion 120 are substantially the same as the height of the cap portion 110, but if the puncture needle 301 can be accommodated, the heights of the side walls 120a and 120b are the height of the cap portion 110 and It does not have to match. Furthermore, the direction in which the puncture needle 301 is inserted may be changed to the horizontal direction instead of the vertical direction. In this case, the needle insertion slot 128 may be placed sideways to provide a self-supporting leg.

  In this embodiment, an example is shown in which the needle receiving slot is longer than the puncture needle, but if the holding portion has a structure in which the needle hub is pushed in and fixed from the rear side, the length of the needle receiving slot is longer than that of the puncture needle. It may be short. In this case, for example, the puncture needle is inserted from above into the needle receiving slot substantially parallel to the needle receiving slot. Thereafter, the puncture needle is moved forward to accommodate the puncture needle in the needle storage unit and to be held in the holding unit. In this configuration, the puncture needle is moved forward, but at that time, since the tip of the needle is accommodated in the housing and guided by the side wall, there is almost no risk of erroneous puncture.

Second Embodiment
In the first embodiment, the dispensing holder in which the cap portion and the needle storage portion are integrated is shown, but the cap portion and the needle storage portion may be separated. As shown in FIG. 4, the dispensing holder 102 of the present embodiment includes a cap unit 210 and a needle storage unit 220. In the dispensing holder 102 of the present embodiment, the cap portion 210 and the needle accommodating portion 220 are separated and can be separated.

  The cap portion 210 has a tubular shape having an opening end 211 and a top plate portion 212. The top plate portion 212 is provided with a top plate opening portion 212a, and a female screw is cut at a position corresponding to the top plate opening portion 212a. The port portion 215 is provided. FIG. 4 shows an example in which flanges 231 and 232, which are legs for preventing rolling, are provided on the open end 211 and the top plate 212 side, respectively.

  The needle accommodating portion 220 is a groove portion 221 constituted by two longitudinally extending side walls, and has a needle insertion slot. A connection portion 226 connected to the port portion 215 is provided at the tip end of the needle storage portion 220. At the rear end, a holding portion 222 for holding the puncture needle 301 is provided. The needle insertion slot reaches the rear end of the needle receiving portion 220, but may not be provided at the connection portion 226.

  The connection portion 226 is an external thread and can be connected to an internally threaded port portion 215. However, the port unit 215 and the connection unit 226 may have any configuration as long as they can be connected to each other. For example, it may be a luer lock or the like. The holding portion 222 is wider than the other portions of the needle housing portion 220, and the needle hub of the puncture needle can be inserted. The holding portion 222 holds the puncture needle by sandwiching the needle hub between the two side walls. A slit provided in the side wall engages the barb of the needle hub. Therefore, the puncture needle can be held more stably. In addition, it is possible to make it difficult to cause re-exposure of the puncture needle due to the puncture needle being pulled backward.

  Although the leg part which consists of the collar parts 231 and 232 is provided in the cap part 210 and the groove part 221 is up and the example which makes the dispensing holder 102 self-support was shown, it is good also as composition which provides a leg part in the needle accommodating part 220. It is also possible to provide legs on both the cap 210 and the needle receptacle 220. Also, the legs may not necessarily be provided.

  Next, a method of using the dispensing adapter 102 of the present embodiment will be described. First, the cap portion 210 and the needle accommodating portion 220 are connected, and the groove portion 221 is placed on the table with the groove portion 221 up. Next, as shown in FIG. 5 (a), the puncture needle 301 is aligned with the groove 221, and the collected blood syringe is moved downward from above. As a result, as shown in FIG. 5B, the tip of the puncture needle 301 is accommodated in the needle accommodation portion 220. Next, as shown in FIG. 6A, the syringe is moved forward, and the holding portion 222 and the needle hub 303 are engaged. The length of the needle housing portion 220 is shorter than the puncture needle 301, and the tip of the puncture needle 301 reaches the inside of the cap portion 210. However, the combined length of the needle housing portion 220 and the cap portion 210 is longer than the puncture needle 301, and the tip of the puncture needle 301 does not protrude from the open end 211 of the cap portion 210.

  Next, as shown in FIG. 6B, the blood collection tube 320 is inserted from the open end 111 side of the cap portion 210, and the cap 321 is punctured by the puncture needle 301. Thereafter, the blood in the syringe 305 is dispensed to the blood collection tube 320. After the dispensing operation is completed, the puncture needle 301 can be discarded while being connected to the dispensing holder 102.

  Similarly to the dispensing holder 101 of the first embodiment, the dispensing holder 102 of the present embodiment can perform dispensing safely. In the dispensing holder 102 of the present embodiment, after the puncture needle 301 is inserted into the groove 221 from above, it is moved forward to engage with the holding portion 222. However, when the puncture needle 301 is moved forward, the tip of the puncture needle 301 is accommodated in the needle accommodation portion 220 and guided by the side wall. For this reason, even if the puncture needle 301 is moved forward, a needle prick accident hardly occurs.

  The dispensing holder 102 of the present embodiment has the cap portion 210 and the needle accommodating portion 220 separately, and therefore can be formed of optimum materials. For example, the cap portion 210 can be made of inexpensive polyethylene or polypropylene, and the needle housing portion 220 can be made of polycarbonate or ABS (acrylonitrile-butadiene-styrene) resin or the like, which can easily ensure the strength. However, the cap portion 210 and the needle housing portion 220 may be formed of the same material. In addition, it is also easy to use the cap portion 210 having an optimum diameter in accordance with the blood collection tube to be used. However, the cap portion 210 and the needle accommodating portion 220 do not have to be separate bodies, and can be integrally formed.

  In 1st Embodiment and 2nd Embodiment, the example which provides a leg part so that a dispensing holder might stand was shown. By providing the legs, the dispensing holder can be made to stand and be operated more safely. The configuration of the legs may be any configuration as long as the dispensing holder can be made to stand on its own. Also, the legs may not be provided.

  Although the puncture needle is described as being connected to the syringe, the puncture needle may be connected to another blood collection device. The puncture needle may also be connected to a syringe or other blood collection device via a tube. The puncture needle may be a puncture needle such as a winged needle other than a general needle. Moreover, it can also be set as a winged needle etc. by changing the structure of a holding | maintenance part. When the puncture needle is a winged needle, the wing portion of the winged needle may be engaged with the holding portion.

  The configuration is shown in which the cap portion and the needle storage portion are connected such that the puncture needle is positioned at the radial center of the cap portion when the puncture needle is held and stored in the needle storage portion. The central position of the cap of the blood collection tube can be punctured by positioning the puncture needle at the radial center of the cap portion. However, the puncture needle may not be located at the radial center of the cap.

  The position in the longitudinal direction of the puncture needle when the puncture needle is held and stored in the needle housing portion may be a position which does not protrude from the open end of the cap portion. From the viewpoint of preventing a needle stick accident, it is preferable to be positioned as close as possible to the closed end side as long as the cap of the blood collection tube can be punctured.

  The diameter of the cap may be matched to the diameter of the blood collection tube used. The cap may be designed according to the diameter of the thickest blood collection tube, and in the case of using a thin blood collection tube, an adapter may be used. As a blood collection tube, a normal vacuum blood collection tube can be used. Although the case of dispensing blood was described in the present embodiment, the dispensing holder of the present disclosure can also be used for dispensing a liquid other than blood.

  The dispensing holder of the present disclosure can achieve excellent safety without using a special puncture needle, and is particularly useful as a dispensing holder and the like used particularly for dispensing blood to a blood collection tube.

101 Dispensing holder 102 Dispensing holder 110 Cap part 111 Open end 112 Top plate part 112a Top plate opening part 113 Side surface 114 Side opening part 120 Needle accommodation part 120a Side wall 120b Side wall 120c Bottom surface 121 Groove part 122 Holding part 124 Projection part 126 Claw part 128 needle insertion slot 130 leg portion 131 collar portion 133 support wall 210 cap portion 211 opening end 212 top plate portion 212 a top plate opening portion 215 port portion 220 needle housing portion 221 groove portion 222 holding portion 226 connection portion 231 collar portion 232 collar portion 301 Puncture needle 302 Needle main body 303 Needle hub 305 Injection cylinder 320 Blood collection tube 321 Cap

Claims (6)

A cap portion having an open end and a top plate facing the open end, and a blood collection tube can be inserted from the open end side;
And a needle storage portion which protrudes from the top plate portion in a direction opposite to the opening end and can store a puncture needle so as not to move in the length direction.
The needle accommodating portion has a groove portion which is disposed at a distance from one another and which is formed by two side walls extending in a direction of projecting from the top plate portion.
The top plate portion has a top plate opening portion provided in a portion corresponding to the groove portion,
The cap portion has a side opening provided on the side,
The side opening forms a needle insertion slot integrally with the top plate opening and the groove.
The dispensing holder, wherein the tip of the puncture needle reaches the inside of the cap through the top plate opening and does not protrude from the open end when the puncture needle is accommodated in the needle accommodation portion. A cap portion having an open end and a top plate facing the open end, and a blood collection tube can be inserted from the open end side;
And a needle storage portion which protrudes from the top plate portion in a direction opposite to the opening end and can store a puncture needle so as not to move in the length direction.
The needle accommodating portion has a groove portion which is disposed at a distance from one another and which is formed by two side walls extending in a direction of projecting from the top plate portion.
The top plate portion has a top plate opening portion provided in a portion corresponding to the groove portion,
After a part of the puncture needle is inserted between the groove parts, the tip of the puncture needle reaches the inside of the cap part through the top plate opening by moving it to the cap part side, and from the open end A dispensing holder in which the puncture needle engages with the needle storage without projecting. The dispensing holder according to claim 2 , wherein the cap portion and the needle storage portion are separable.   The dispensing according to any one of claims 1 to 3, wherein the needle storage portion has a holding portion engaged with the puncture needle and held at an end opposite to the cap portion. holder.   The dispensing holder according to claim 4, wherein the needle storage portion has a lock mechanism that inhibits the disengagement with the puncture needle once engaged. The dispensing holder according to any one of claims 1 to 5, further comprising a leg that enables the groove to stand on itself.

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