JP2008264230A - Blood collection holder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a blood collection holder capable of freely removably fixing a vacuum blood collection needle, being manufactured inexpensively, safely removing the vacuum blood collection needle after use, and reducing costs for waste disposal. <P>SOLUTION: The blood collection holder 2 comprises a synthetic resin uniform molding, has a blood collection needle fitting part 3 integrally provided for a cylinder holder body part 2, a fitted part 3 has a first and a second clamping pieces 4 and 5 so as to flexibly clamp a cylinder fitted part 12c of the vacuum blood collection needle 1, engaging projections 4d and 5d are provided for in an inner face of at least either the first clamping piece 4 or the second clamping piece 5, and first end part side control levers 8 and 9 are linked to in an upper end of at least either the clamping piece 4 or the clamp piece 5. In removing the holder, a distance between the clamping pieces 4 and 5 is widened and engagement by the engaging projections 4d and 5d can be canceled by adding external force so that the control levers 8 and 9 rotate around the first end part. Thus, the vacuum blood collection needle 1 can be removed from the blood collection holder 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a blood collection holder used for blood collection using a vacuum blood collection needle, and more particularly to a blood collection holder having a structure in which a vacuum blood collection needle is detachably attached.

  Conventionally, in clinical examinations, vacuum blood collection needles have been widely used to collect blood from a subject. In the vacuum blood collection needle, the blood collection hollow needle portion inserted into the blood vessel of the subject is extended from one side of the hub, and the hollow needle portion inserted into the vacuum blood collection tube is extended from the other side of the hub. .

  By the way, in order to facilitate blood collection using the vacuum blood collection needle, a blood collection holder is used. Such a blood collection holder is disclosed, for example, in Patent Documents 1 to 5 listed below.

A conventional blood collection holder has a cylindrical holder body provided with an opening for inserting a vacuum blood collection tube at one end and a blood collection needle mounting portion for mounting a blood collection needle at the other end. The holder body is usually formed of a synthetic resin molded product. However, the blood collection needle mounting portion is formed by attaching a part different from the holder body to the holder body. For example, a vacuum blood collection needle fixing member made of metal or synthetic resin, having a spring property, and holding the vacuum blood collection needle by the spring property is attached (for example, Patent Documents 2, 5, and 6 below) ).
JP-A-5-305068 JP-A-8-126630 JP-A-9-2013349 Patent No. 2723105 JP 2000-60827 A JP 2000-175888 A

  As described above, the conventional blood collection holder has a separate blood collection needle fixing member or the like in order to constitute a blood collection needle mounting portion for detachably attaching the blood collection needle to a cylindrical holder body made of a synthetic resin molded product. It was necessary to prepare and assemble. When such a blood collection needle fixing member is made of metal or the like, a material other than synthetic resin is required, so that waste cannot be separated and discarded, resulting in high disposal costs.

  In addition, since a plurality of members, that is, a blood collection holder and the blood collection needle fixing member must be prepared and assembled, the manufacturing process is complicated and the cost must be high. When the blood collection needle fixing member or the like is formed of a synthetic resin in the same manner as the holder main body, it is possible to reduce the disposal cost compared to the case where the blood collection needle fixing member and the like are made of other materials such as metal. However, in order to prepare each member, a plurality of molds are required, and since it is necessary to separately mold and assemble each member, the cost is inevitably high.

  On the other hand, at the blood collection site, in order to eliminate the risk of infection, it is strongly required that the blood collection holder is disposable like the blood collection needle. Therefore, a cheaper blood sampling holder is required to be disposable.

  In addition, when the holder is configured to be disposable, it may be considered that the blood collection needle attached to the holder is discarded. In general, medical waste is processed by volume and the processing cost is calculated. Therefore, when only the blood collection needle is discarded as medical waste, the volume is small and the disposal cost is small. However, the volume is large when attached to the holder, and the disposal cost is inevitably high. Therefore, after blood collection, a blood collection holder that can be easily removed from the vacuum blood collection needle and discarded separately from the vacuum blood collection needle is desirable.

  An object of the present invention is to provide a relatively simple structure, can be provided at a low cost, and can be made disposable, in view of the current state of the prior art described above. It is to provide a blood collection holder that can be disposed of separately.

  According to the present invention, the hollow needle portion for blood collection of the hollow needle is extended from one end side of the hub, and the hollow needle portion for blood introduction of the hollow needle is extended from the other end side of the hub, A cylindrical mounting portion on which a hub is mounted on a blood sampling holder; and a hub tip portion connected to the cylindrical mounting portion and disposed on the side of the blood introduction hollow needle portion. Vacuum blood collection in which the hub tip has an outer shape larger than the diameter of the cylindrical mounted portion so that a locking surface intersecting with the extending direction of the blood introduction hollow needle portion is formed between the mounted portion and the mounted portion. A blood collection holder for detachably holding a needle, a cylindrical holder main body having an opening into which a blood collection tube is inserted at one end, and an end opposite to the side on which the opening of the holder main body is provided The holder so as to protrude axially outward from the cylindrical holder body A blood collection needle mounting portion provided integrally with the main body, and the blood collection needle mounting portion includes first and second holding pieces for elastically holding the cylindrical mounting portion of the hub of the vacuum blood collection needle. And is protruded inwardly to the inner surface of at least one of the first and second holding pieces, and prevents the vacuum blood collection needle from falling off by engaging the engagement surface of the hub of the vacuum blood collection needle. An operating lever having a locking projection and having first and second end portions, which is connected to at least one of the first and second holding pieces at the first end portion. And by rotating the operation lever around the first end of the operation lever, the distance between the first and second holding pieces is increased, and the locking projection on the locking surface The operation lever and the locking projection are provided so that the locking is released, and it is made of an integrally molded product of synthetic resin. Wherein, blood sampling holder is provided.

  In the blood sampling holder according to the present invention, preferably, of the first and second holding pieces, the holding piece connected to the operation lever rotates the operation lever around the first end. It is configured so that it can be elastically deformed. Therefore, by simply rotating the operating lever around the first end, the holding piece connected to the operating lever is elastically deformed. Therefore, the distance between the first and second holding pieces can be reduced. It is easily enlarged and can be easily released by the engagement protrusions on the engagement surface of the hub, whereby the vacuum blood collection needle can be quickly removed from the blood collection holder.

  In the blood sampling holder according to the present invention, a plurality of the first and second holding pieces may be provided, and in that case, a vacuum blood collecting needle is provided by the plurality of first and second holding pieces. Can be pinched and fixed more securely.

  In the blood collection holder according to the present invention, preferably, the inner surfaces of the first and second holding pieces have a cylindrical curved shape, and the inner surfaces of the first and second holding pieces are one. Each part of the outer peripheral surface of the cylinder is configured. In this case, since the cylindrical mounted portion of the vacuum blood collection needle has a generally cylindrical shape, the vacuum blood collection needle is mounted using the cylindrical curved shape of the inner surfaces of the first and second holding pieces. It can be fixed to the blood collection holder more stably.

  In the blood collection holder according to the present invention, preferably, in the first and second holding pieces, each of the holding pieces provided with the locking projections is provided with an operation lever. Since the operating levers are provided on the holding pieces provided with the locking projections, the locking surface is more reliably released by the locking projections by rotating the operating lever around the first end. Can be released.

  A blood collection holder according to the present invention comprises the above-mentioned cylindrical holder main body portion and a vacuum blood collection needle mounting portion provided integrally with the holder main body portion, and is made of a synthetic resin integral molded product. And it is possible to manufacture at low cost using a single mold. Therefore, the blood collection holder of the present invention can be a disposable blood collection holder. In the vacuum blood collection needle mounting portion, the vacuum blood collection needle is held and fixed by the first and second holding pieces that elastically hold the cylindrical mounted portion of the blood collection needle hub. In that case, the locking surface of the hub of the vacuum blood sampling needle is locked by the locking protrusion provided on the vacuum blood sampling needle mounting portion, and the fixed vacuum blood sampling needle is unlikely to drop off. On the other hand, by rotating the operating lever around the first end of the operating lever of the blood collection needle mounting portion, the distance between the first and second holding pieces is increased, and the engagement of the locking surface is increased. The locking by the stop protrusion is released. Therefore, the vacuum blood collection needle can be quickly removed from the blood collection holder after use. Therefore, the blood collection holder can be discarded separately from the vacuum blood collection needle, and the cost of disposal processing is not high.

  Hereinafter, the present invention will be clarified by describing specific embodiments of the present invention with reference to the drawings.

  FIG. 1A is a plan view of a blood collection holder according to one embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along line BB in FIG. ) Is a cross-sectional view taken along the line CC in FIG.

  As is clear from FIGS. 1A to 1C, the blood collection holder 1 includes a cylindrical holder main body 2 and a blood collection needle mounting portion 3 provided integrally with the holder main body 2. The blood collection holder 1 is made of an integrally molded product of synthetic resin. That is, the blood collection holder 1 is obtained by integrally molding the synthetic resin using an appropriate molding technique such as injection molding. Therefore, in order to obtain the blood collection holder 1, it is only necessary to prepare one type of mold, and no complicated assembly work is required. Therefore, the blood collection holder 1 can be manufactured at low cost.

  The synthetic resin is not particularly limited, and an appropriate synthetic resin material such as polypropylene, polyethylene, POM, ABS, or PVC can be used.

  The cylindrical holder main body 2 has an opening 2a at one end. As will be described later, the opening 2a corresponds to a portion into which a vacuum blood collection tube is inserted during vacuum blood collection. The inner diameter of the holder main body 2 is larger than the outer diameter of the vacuum blood collection tube to be inserted. In the present embodiment, the holder main body 2 has a substantially cylindrical shape. A flange portion 2b is provided on the periphery of the opening 2a. Although the flange part 2b is not essential, since the flange part 2b is provided, the blood collection holder can be easily held by fingers during blood collection. Further, since the flange portion 2b is provided, the unused blood collection holder 2 and the used blood collection holder 2 can be easily erected on a table or the like. In addition, as shown in FIG. 1A, the oblong type prevents the table from being laid down on the table.

  At the end of the holder main body 2 opposite to the opening 2a, a top plate 2c extending inward in the radial direction from the cylindrical side surface is connected, and at the center of the top plate 2c, outside the holder main unit 2. A blood collection needle mounting portion 3 having a small diameter is integrally provided.

  The blood collection needle mounting portion 3 has first and second holding pieces 4 and 5 in this embodiment. The first and second holding pieces 4 and 5 are extended so as to protrude outward in the axial direction of the holder main body 2. That is, it extends in parallel with the direction in which the central axis of the holder main body 2 extends. The inner surfaces of the holding pieces 4 and 5 have a shape corresponding to a part of a cylindrical curved surface extending in the axial direction of the holder main body 2.

  Further, third and fourth holding pieces 6 and 7 are provided on the sides of the holding pieces 4 and 5. The inner surfaces of the third and fourth holding pieces 6 and 7 have a shape corresponding to a part of a cylindrical curved surface, like the first and second holding pieces 4 and 5. The first and second holding pieces 4 and 5 are arranged so as to face each other.

  The first and second sandwiching pieces 4, 5 have cylindrically curved inner surfaces, and the sandwiching piece body portions 4 a, 5 a that are extended in parallel with the axial direction of the holder body portion 2. Have. The other ends 4b and 5b of the holding piece main body portions 4a and 5a are located below the top plate portion 2c. The reason why 4b and 5b are positioned below the top plate portion 2c is to make the blood collection needle protrude further into the holder, and it is not always necessary, but it is preferable to make the blood collection needle protrude. And the inclined surface parts 4c and 5c extended toward the top-plate part 2c are continued to the lower ends 4b and 5b. Accordingly, since the inclined surface portions 4c and 5c are provided, the holding pieces 4 and 5 have a distance between the holding pieces 4 and 5 between the holding pieces main bodies 4a and 5a around the lower ends 4b and 5b. It can be elastically deformed to expand.

  On the other hand, locking projections 4d and 5d are provided on the inner surfaces of the holding piece main body portions 4a and 5a at the intermediate height position. In this embodiment, the locking protrusions 4d and 5d are provided so as to reach the entire width of the inner surfaces of the holding piece main body portions 4a and 5a, as shown in FIG. But the latching protrusions 4d and 5d may be provided only in a part of the width direction of the main body portions 4a and 5a of the holding pieces. Further, a plurality of locking protrusions 4d and 5d may be formed in the first and second holding pieces 4 and 5.

  Further, operation levers 8 and 9 are provided so as to be connected to the upper ends of the first and second holding pieces 4 and 5. The operation levers 8 and 9 have a rectangular planar shape having a first end and a second end opposite to the first end. On the first end side, the operation levers 8 and 9 are connected to the first and second holding pieces 4 and 5.

  In the present embodiment, the operation levers 8 and 9 are extended in a direction orthogonal to the axial direction of the holder main body 2. That is, it is formed so as to extend in the radial direction of the holder main body 2. However, the operation levers 8 and 9 may be extended obliquely upward from the first end portion side, and need not necessarily be extended so as to be orthogonal to the axial direction of the holder main body portion 2.

  When a downward force is applied to the second end portion side of the operation levers 8 and 9 so that the operation levers 8 and 9 are rotated around the first end portion, the holding pieces 4 and 5 are elastically deformed. However, the distance between the first and second holding pieces 4, 5, that is, the distance between the locking protrusions 4 d, 5 d is expanded as compared with the state shown in FIG.

  In the blood collection holder of this embodiment, the distance between the locking projections 4d and 5d is the vacuum blood collection needle described later in the state shown in FIG. 1B, that is, in the state where no external force is applied from the operation levers 8 and 9. The size is such that the locking surface of the hub can be locked to prevent the vacuum blood collection needle from falling off. As will be apparent from the operation method described later, when the holding levers 4 and 5 are deformed so as to increase the distance between the holding pieces 4 and 5 by applying an external force to the operation levers 8 and 9, The operation levers 8 and 9 and the locking projections 4d and 5d are formed so that the locking projections 4d and 5d have such a size that the locking of the locking surface of the hub can be released.

  Next, the usage method of the blood collection holder 1 of the said embodiment is demonstrated with reference to Fig.2 (a)-(c). In use, the vacuum blood collection needle 11 is inserted from the blood collection needle mounting portion 3 side of the blood collection holder 2 as shown in FIG. The vacuum blood collection needle 11 has a hub 12 and a hollow needle 13 inserted and fixed to the hub 12. The hollow needle 13 has a blood collection hollow needle portion 13a and a blood introduction hollow needle portion 13b. A hollow needle portion 13a for blood collection of the hollow needle 13 is extended from one end side of the hub 12, and a hollow needle portion 13b for blood introduction indicated by a broken line is extended from the other end side of the hub. Here, the blood introduction hollow needle portion 13 b is covered with a rubber sheath 15. It should be pointed out that the blood collection holder of the present invention can be applied to a vacuum blood collection needle that does not have the rubber sheath 15.

  The needle tip of the blood collection hollow needle portion 13a is inserted into a blood vessel to guide blood. The blood introduction hollow needle portion 13b penetrates the stopper of a vacuum blood collection tube (not shown) inserted into the holder main body portion 2 of the blood collection holder 1 from the opening 2a, and guides blood into the vacuum blood collection tube.

  The hub 12 is provided on the hollow needle support portion 12a supporting the hollow needle 13 and the blood introduction hollow needle portion 13b side of the hollow needle support portion 12a, and has a diameter larger than that of the hollow needle support portion 12a. And a large flange 12b. On the opposite side of the collar portion 12b from the hollow needle support portion 12a, a cylindrical mounted portion 12c having a diameter smaller than that of the collar portion 12b and fixed to the blood collection needle mounting portion 3 is provided. The diameter of the cylindrical mounted portion 12c is set to a size that can be elastically held by the first and second holding pieces 4 and 5 described above.

  On the other hand, a hub front end portion 12e is connected to the front end side of the cylindrical mounted portion 12c via a locking surface 12d. The hub front end portion 12e has a portion having a larger diameter than the cylindrical mounted portion 12c, and thus a locking surface 12d is formed between the hub front end portion 12e and the cylindrical mounted portion 12c. In this embodiment, the locking surface 12d is a direction orthogonal to the axial direction of the holder main body 2. However, the locking surface 12d is not particularly limited as long as the locking surface 12d intersects the axial direction.

  As shown in FIG. 2 (b), when the vacuum blood collection needle 11 is further inserted into the blood collection holder 1, the first and second holding pieces 4, 5 are mutually connected by the hub tip 12 e of the hub 12. Can be expanded so that the distance of After the hub protrusion 12e passes through the locking projections 4 and 5, the cylindrical mounted portion 12c of the hub 12 is elastically held by the holding pieces 4 and 5 as shown in FIG. A vacuum blood collection needle 11 is fixed to the blood collection holder 2.

  In the fixed state, the locking surface 12d is locked by the locking protrusions 4d and 5d, so that the vacuum blood collection needle 11 does not fall above the blood collection holder 1 in FIG. Therefore, the vacuum blood collection needle 11 can be securely fixed to the blood collection holder 2 during vacuum blood collection.

  From the state shown in FIG. 2C, blood can be collected into the vacuum blood collection tube by inserting the blood collection tube through the opening 2a of the blood collection holder 2 and inserting the blood collection needle 12 of the vacuum blood collection needle 11 into the blood vessel. After vacuum blood collection, the vacuum blood collection tube is removed from the blood collection holder 2.

  After the vacuum blood collection tube is extracted, the state is the same as the state shown in FIG. However, the tip of the rubber sheath 15 is broken by the hollow needle 13b for blood introduction. However, other parts are almost the same as the state before use shown in FIG.

  When the vacuum blood collection needle 11 is removed, the operation levers 8 and 9 are rotated about the first end, that is, the second ends of the operation levers 8 and 9 are in the cylindrical cover of the vacuum blood collection needle 11. A force is applied in a direction away from the mounting portion 12c. As a result, the distance between the first and second holding pieces 4 and 5 can be increased by further moving the second end side portions of the operation levers 8 and 9 downward from the state shown in FIG. Enlarging and the locking of the locking surface 12d by the locking projections 4d, 5d is released.

  Therefore, the blood collection needle 11 can be easily detached from the blood collection holder 2. Therefore, the vacuum blood collection needle 11 can be removed, and the blood collection holder 1 made of only synthetic resin can be easily discarded. Therefore, the disposal cost can be reduced.

  In the above embodiment, the pair of first and second holding pieces 4 and 5 are formed so as to face each other. However, a plurality of first and second holding pieces may be provided. . That is, instead of the third and fourth sandwiching pieces 6 and 7, the same structure as that of the first and second sandwiching pieces 4 and 5 is used. You may arrange | position in the part provided. Further, three or more first and second holding pieces may be appropriately disposed.

  3A and 3B, the operation lever 8 may be connected only to the first holding piece 4 and the operation lever 8 may not be connected to the second holding piece 5. . As described above, the operation lever may be connected to at least one of the first and second holding pieces.

  Further, the locking protrusions 4 and 5 may be provided only on at least one of the first and second holding pieces 4 and 5.

  Of the first and second holding pieces 4 and 5, the holding piece to which the operation lever 8 or the operation lever 9 is connected has the operation lever 8 or the operation lever 9 centered on the first end. It is desirable to be configured so that it can be elastically deformed as described above when rotated.

  Further, the operating levers 8 and 9 are provided on the holding pieces 4 and 5 provided with the locking projections 4d and 5d, respectively, but the locking projections are provided on one of the first and second holding pieces. In the case where the operating lever is not provided, the operating lever may be linked to the holding piece not provided with the locking projection.

  In addition, since the third and fourth holding pieces 6 and 7 are formed so as not to be elastically deformed in the above embodiment, the vacuum blood collection needles are formed by the third and fourth holding pieces 6 and 7. 11 can be held and fixed in a more stable inorganic material. Therefore, it is also desirable to provide the third and fourth holding pieces 6 and 7 facing each other that do not elastically deform.

  In the vacuum blood collection needle to which the present invention is applied, the blood collection hollow needle portion and the blood introduction side hollow needle portion may not be integrated but may be configured separately.

(A) is a top view of the blood collection holder which concerns on the 1st Embodiment of this invention, (b) is sectional drawing which follows the BB line in (a), (c) is (a It is sectional drawing which follows the CC line in FIG. (A)-(c) is each longitudinal cross-sectional view for demonstrating the process of inserting and fixing a vacuum blood-collecting needle to the blood-collecting holder of 1st Embodiment. (A), (b) is the top view and longitudinal cross-sectional view for demonstrating the modification of the blood collection holder of 1st Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Blood collection holder 2 ... Holder main-body part 2a ... Opening 2b ... Flange part 2c ... Top plate part 3 ... Blood-collecting needle mounting part 4, 5 ... 1st, 2nd holding | grip piece 4a, 4b ... Nipping-piece body part 4b , 5b ... lower end 4c, 5c ... inclined surface part 4d, 5d ... locking projection 6, 7 ... third and fourth holding pieces 11 ... vacuum blood collection needle 12 ... hub 12a ... hollow needle support part 12b ... collar part 12c ... Cylindrical attached portion 12d ... locking surface 12e ... hub tip 13 ... hollow needle 13a ... hollow needle portion for blood collection 13b ... hollow needle portion for blood introduction 15 ... rubber sheath

Claims (5)

A hollow needle portion for blood collection of the hollow needle is extended from one end side of the hub, and a hollow needle portion for blood introduction of the hollow needle is extended from the other end side of the hub, and the hub is attached to the blood collection holder. And a hub distal end portion that is connected to the cylindrical mounted portion and that is disposed on the hollow needle portion side for blood introduction, and between the cylindrical mounted portion. In addition, a vacuum blood collection needle having a hub tip portion having an outer portion larger than the diameter of the cylindrical attachment portion is detachably held so that a locking surface intersecting with the extending direction of the blood introduction hollow needle portion is formed. A blood collection holder,
A cylindrical holder body having an opening into which a blood collection tube is inserted at one end;
A blood collection needle mounting portion provided integrally with the holder main body so as to protrude axially outward from the cylindrical holder main body at the end of the holder main body opposite to the side where the opening is provided And
The blood collection needle mounting part,
The vacuum blood collection needle has a first and second holding pieces that elastically hold the cylindrical mounting portion of the hub, and protrudes inwardly on the inner surface of at least one of the first and second holding pieces. A locking projection for locking the locking surface of the hub of the vacuum blood collection needle to prevent the vacuum blood collection needle from falling off, and having first and second ends, An operating lever connected to at least one of the first and second holding pieces at the first end, and rotating the operating lever around the first end of the operating lever; The operation lever and the locking projection are provided so that the distance between the first and second holding pieces is increased and the locking of the locking surface by the locking projection is released.
A blood collection holder comprising an integrally molded product of synthetic resin.   Of the first and second holding pieces, the holding piece connected to the operation lever can be elastically deformed when the operation lever is rotated around the first end. The blood collection holder according to claim 1, wherein the blood collection holder is constructed.   The blood sampling holder according to claim 1 or 2, wherein a plurality of the first and second holding pieces are provided.   The inner surfaces of the first and second sandwiching pieces have a cylindrical curved shape, and the inner surfaces of the first and second sandwiching pieces respectively constitute part of the outer peripheral surface of one cylinder. The blood collection holder according to any one of claims 1 to 3.   The blood sampling holder according to any one of claims 1 to 4, wherein, in the first and second holding pieces, an operating lever is provided on each holding piece provided with the locking projection. .

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