JP7054465B2 - Blood collection tube holder - Google Patents

Description

The present invention relates to a blood collection tube holder that holds a blood collection tube used for blood collection.

Conventionally, when performing a blood collection procedure from a patient in the medical field, blood is collected in a blood collection tube, and a blood collection tube holder that holds the blood collection tube is generally used.

By the way, if the removed blood collection needle is left exposed after the blood collection needle is punctured and used in a patient, a doctor, a nurse, a disposal company, or the like may puncture the patient by mistake. In the event of an accident such as accidental puncture, there is a risk of causing an infectious disease due to the blood adhering to the blood sampling needle.

Therefore, a protector that covers the blood collection needle after use has been proposed. For example, it is described in Japanese Patent No. 3109831 (Patent Document 1). That is, the ring-shaped collar portion provided on the protector is fitted from the outside to the tip end portion of the holder portion of the blood collection tube holder, whereby the blood collection tube holder provided with the protector is configured. Therefore, in order to prevent the protector from falling off from the holder portion, it is necessary to secure a certain fitting force, and it is preferable to make the inner diameter dimension of the collar portion smaller.

By the way, the present inventors, in order to confirm whether or not the blood collection tube holder is in an unused state, or to indicate the manufacturer or product number, the tip portion of the holder portion and the cap attached thereto. We considered attaching a sticker to at least one of the above. However, for reasons such as in the manufacturing process, when attaching the seal to the tip of the holder or the cap and then externally assembling the collar, the collar with a smaller inner diameter should be the tip of the holder. In the manufacturing stage of fitting to the portion, the seal may be rubbed and damaged by the inner peripheral surface of the collar portion.

In order to solve this problem, we considered increasing the inner diameter of the collar to the extent that it does not rub against the seal, but simply increasing the inner diameter of the collar is enough to increase the tip of the holder in the collar. The fitting force to the holder is reduced, and the collar portion may fall off from the holder portion.

Japanese Patent No. 3109831

The present invention has been made in the background of the above-mentioned circumstances, and the problem to be solved thereof is that it is possible to prevent damage to the seal while sufficiently ensuring the fitting force of the collar portion to the holder portion. It is an object of the present invention to provide a blood collection tube holder having a novel structure capable of preventing the collar portion from coming off from the holder portion.

Hereinafter, embodiments of the present invention made to solve such problems will be described. The components adopted in each of the following aspects can be adopted in any combination as much as possible.

In the first aspect of the present invention, a protector covering the used blood collection needle is externally attached to the tip portion of the tubular holder portion to which the blood collection needle is attached to the tip side in the collar portion. It is a blood collection tube holder, and while a removable cap that covers the blood collection needle is attached to the holder portion, it has a seal that is affixed straddling between the cap and the holder portion. The contact mitigation mechanism for alleviating the contact of the collar portion with the seal attached straddling between the cap and the holder portion when the collar portion is attached to the tip portion of the holder portion by external insertion is the said. While the protector is provided on the collar portion, the protector is connected to the tip portion of the collar portion by a connecting portion, and the tip of the collar portion is a seal sticking position on the outer peripheral surface of the axial intermediate portion of the holder portion. A retaining engaging portion is provided to prevent the collar portion from coming off from the holder portion by engaging with the engaging protrusion projecting from the base end side, and the inner peripheral surface of the collar portion is provided. A small diameter portion close to the outer peripheral surface of the holder portion is provided so as to extend in the axial direction from the tip portion of the collar portion, and as the contact relaxation mechanism, the small diameter portion is forward in the mounting direction to the holder portion . A diameter-expanding portion that expands in diameter toward the front side in the mounting direction is provided at the end portion on the side.

According to the blood collection tube holder having a structure according to this embodiment, the collar portion is provided with a contact relaxation mechanism for alleviating contact with the seal, so that the collar portion is attached to the tip portion of the holder portion while avoiding damage to the seal. Can be attached. In addition to that, by providing a retaining engaging portion for preventing the collar portion from coming off between the holder portion and the collar portion, the collar portion can be prevented from coming off. That is, in the blood collection tube holder of this embodiment, the contradictory effects of preventing damage to the seal while ensuring sufficient fitting force to the holder portion in the collar portion are exhibited at the same time, and from the holder portion. It also effectively prevents the collar part from falling off.

The contact relaxation mechanism in the first aspect is preferably configured with any of the following second to fourth aspects.

A second aspect of the present invention is the blood collection tube holder according to the first aspect, wherein the holder portion has an outer peripheral cylinder portion provided at the tip end portion of the holder portion, and the seal has the outer peripheral cylinder portion. The inner diameter of the contact relaxation mechanism is larger than the outer diameter of the outer peripheral cylinder portion including the seal.

A third aspect of the present invention is provided on the inner peripheral surface of the collar portion on the front side in the mounting direction with respect to the holder portion as the contact relaxation mechanism in the blood collection tube holder according to the first or second aspect. An inner peripheral surface of the collar portion having a large diameter portion and an inclined portion whose inner diameter gradually changes from the large diameter portion toward the small diameter portion on the rear side in the mounting direction is adopted.

A fourth aspect of the present invention is provided at the inner peripheral angle portion of the collar portion on the front side in the mounting direction with respect to the holder portion as the contact relaxation mechanism in the blood collection tube holder according to the first or second aspect. The chamfered part is adopted.

A fifth aspect of the present invention is the unused confirmation seal in the blood collection tube holder according to any one of the first to fourth aspects, wherein the seal can confirm the unused state of the blood collection tube holder. It is attached straddling between the cap and the holder portion so as to be cut by removing the cap during use.

According to the blood collection tube holder having a structure according to this aspect, an unused confirmation sticker affixed between the cap and the holder portion is adopted as a means for determining whether or not the blood collection tube holder is in an unused state. There is. That is, the unused confirmation seal is cut by removing the cap from the holder part, and the unused confirmation seal is visually confirmed when the blood collection tube holder is used, so that the blood collection tube holder is unused. It is possible to determine whether or not it is. This makes it possible to more reliably determine whether or not the blood collection tube holder is in an unused state.

According to the blood collection tube holder having a structure according to the present invention, the contact between the collar portion and the seal is relaxed by providing the contact relaxation mechanism while sufficiently securing the fitting force to the holder portion, and the seal is damaged. Can be effectively prevented. Further, by providing the retaining engaging portion, it is possible to effectively prevent the collar portion from coming off from the holder portion.

The perspective view which shows the blood collection tube holder as the 1st Embodiment of this invention in the state of product shipment. The front view of the blood collection tube holder shown in FIG. The perspective view which shows the blood collection tube holder shown in FIG. 1 in the blood collection state. FIG. 3 is an enlarged plan view showing the blood collection tube holder shown in FIG. The front view which shows the state which the protector was rotated and moved to a stable position after blood collection in the blood collection tube holder shown in FIG. FIG. 3 is a perspective view showing a state in which the protector is rotated after blood collection in the blood collection tube holder shown in FIG. 1 and the blood collection needle is covered with the protector. The front view of the blood collection tube holder shown in FIG. The left side view of the blood collection tube holder shown in FIG. FIG. 8 is a cross-sectional view taken along the line IX-IX in FIG. FIG. 8 is an enlarged cross-sectional view showing an XX cross section in FIG. FIG. 8 is an enlarged cross-sectional view showing a cross section of XI-XI in FIG. FIG. 3 is an enlarged vertical sectional view showing a main part of the blood collection tube holder shown in FIG. 1. FIG. 3 is an enlarged cross-sectional view showing a main part of a blood collection tube holder as a second embodiment of the present invention, and corresponds to a cross section of XIII-XIII in FIG. FIG. 3 is an enlarged vertical sectional view showing a main part of a blood collection tube holder as a third embodiment of the present invention. FIG. 14 is an enlarged vertical cross-sectional view showing a main part of the collar portion of the protector constituting the blood collection tube holder shown in FIG. FIG. 14 is an enlarged vertical sectional view showing a main part of a modified example of the blood collection tube holder shown in FIG. FIG. 3 is an enlarged plan view showing a blood collection tube holder as another aspect of the present invention. The front view which shows the blood collection tube holder as still another aspect of this invention.

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

First, FIGS. 1 and 2 show a blood collection tube holder 10 as a first embodiment of the present invention in a product shipping state. The blood collection tube holder 10 includes a medical blood collection needle 12 (see FIG. 3 and the like) that is punctured into the skin and a holder portion 14. A protector 16 is attached to the holder portion 14, and after the blood collection needle 12 is punctured, the protector 16 is rotationally displaced with respect to the holder portion 14, so that the used blood collection needle 12 is laterally displaced by the protector 16. It is covered and protected. In the initial state (product shipping state) shown in FIG. 1, the blood collection needle 12 is covered with a cap 18 from the outside so that the blood collection needle 12 is not exposed. Further, in the following description, the axial direction means the vertical direction in FIG. 2, which is the needle axial direction of the blood collection needle 12. Further, the distal end side refers to the upper side in FIG. 2, which is the side of the blood sampling needle 12 that is punctured by the skin, while the proximal end side is connected to the blood collection tube 20 (see FIG. 3 and the like) in the blood collection needle 12. Refers to the lower side in FIG. 2, which is the side of the blood.

More specifically, the blood collection needle 12 of the present embodiment is a hollow double-headed needle, that is, sharp needle tips 22 and 24 (see FIG. 9) are provided at the tip and base of the blood collection needle 12, respectively. ing. In particular, the needle tip 22 on the tip side is formed with a blade surface 26 (see FIG. 3 and the like) so as to be easy to puncture, and the blade surface 26 is an inclined surface inclined with respect to the axial direction. .. Further, in the present embodiment, a cutout portion 28 (see FIG. 9) in which a part of the peripheral wall is cut off is formed in the intermediate portion in the length direction of the blood collection needle 12.

The blood collection needle 12 is fixedly supported by a needle hub 30 (see FIG. 4 and the like) as a hub at the intermediate portion in the length direction or the proximal end side thereof. The needle hub 30 has a substantially tubular shape, and the blood collection needle 12 is fixedly supported by the needle hub 30 by inserting the blood collection needle 12 into the central hole and adhering the blood collection needle 12 with an adhesive. Further, a male screw 32 (see FIG. 9) is formed on the outer peripheral surface of the intermediate portion in the length direction of the needle hub 30, and a large-diameter fixing portion 34 (see FIG. 9) protruding toward the outer peripheral side is formed on the outer peripheral surface of the base end. (See FIG. 9) is formed.

On the other hand, the tip portion of the needle hub 30 is a small-diameter tubular portion 36 (see FIG. 4 and the like), and a plurality of small-diameter tubular portions 36 (4 in the present embodiment) radially project to the outer peripheral side on the outer peripheral surface of the small-diameter tubular portion 36. A protrusion 38 (see FIG. 4 and the like) is provided. Then, the blood collection needle 12 is fixed to the needle hub 30 in a state where the blood collection needle 12 and the needle hub 30 are aligned in the axial direction so that the notch 28 of the blood collection needle 12 is located on the inner peripheral side of the small diameter tube portion 36. It is supported.

The needle hub 30 is provided with a flashback observation unit 40 as shown in, for example, Japanese Patent Application Laid-Open No. 2002-325750. That is, the needle hub 30 is integrally formed of a transparent synthetic resin material, and when the blood collection needle 12 is punctured into the skin, blood flows into the blood collection needle 12 and is notched through the transparent needle hub 30. The flashback can be observed or confirmed by the unit 28. Therefore, in the peripheral wall of the small diameter cylinder portion 36, the portion located on the outer peripheral side of the notch portion 28 is referred to as the flashback observation portion 40.

In the present embodiment, a notch 28 is provided in the axially intermediate portion of the blood collection needle 12 so that the flashback can be observed or confirmed. However, the blood collection needle is shown in FIG. 1 of JP-A-2002-325750. As shown in 3, 4 and the like, the needle hub 30 may be composed of two members, a needle tube on the distal end side and a needle tube on the proximal end side, and the shape of the needle hub 30 may be, for example, FIGS. Conventionally known shapes such as those described in 1 can be adopted. However, such a flashback observation unit is not essential in the present invention.

A rubber sleeve 42 (see FIG. 9) is attached to the base end of the needle hub 30, and the base end side of the blood collection needle 12 is covered with the rubber sleeve 42. The rubber sleeve 42 is made of rubber and has a substantially bottomed cylindrical shape. The base end side of the blood collection needle 12 is inserted into the central hole, and the tip end side opening is a fixing portion of the base end of the needle hub 30. It is liquidtightly attached to the needle hub 30 by being locked to 34. As a result, the exposure of the needle tip 24 on the proximal end side of the blood collection needle 12 when not in use is avoided.

The needle hub 30 is attached to the holder portion 14. The holder portion 14 has a cylindrical shape as a whole, and is composed of a main body portion 44 and a holding portion 46 (see FIG. 9) inserted from the base end side of the main body portion 44.

The main body 44 is preferably formed of a transparent synthetic resin material, and has a substantially bottomed cylindrical shape as a whole. That is, the main body portion 44 has an annular bottom wall portion 50 having a through hole 48 (see FIG. 9) in the center while spreading in a direction substantially perpendicular to the axis, and the outer peripheral edge portion of the bottom wall portion 50 toward the proximal end side. It is provided with a peripheral wall portion 52 as a substantially tapered tubular side wall that extends while slightly expanding its diameter.

Then, in the radial intermediate portion of the bottom wall portion 50, a cylindrical outer peripheral tubular portion 54 projecting to the distal end side (outward in the axial direction) is formed from the distal end side, and the inner peripheral peripheral portion is formed. A tubular inner peripheral tubular portion 56 (see FIG. 9) protruding toward the tip side is formed. The protruding height dimension (axial direction dimension) of the inner peripheral cylinder portion 56 is smaller than the protruding height dimension (axial direction dimension) of the outer peripheral cylinder portion 54, and the outer peripheral cylinder portion 54 is the inner peripheral cylinder portion 56. It protrudes toward the tip side. That is, the tip end side of the main body portion 44 has a double cylinder structure at the formation position of the inner peripheral cylinder portion 56, and the tip end portion of the holder portion 14 includes the outer peripheral cylinder portion 54. Further, a female screw 58 (see FIG. 9) corresponding to the male screw 32 of the needle hub 30 is formed on the inner peripheral surface of the inner peripheral cylinder portion 56.

On the other hand, on the outer peripheral surface 60 of the outer peripheral cylinder portion 54, a protruding rib 62 as an engaging protrusion that extends continuously over the entire circumference in the circumferential direction is formed in the axial intermediate portion thereof. The protruding dimension A (see FIG. 2) of the protruding rib 62 from the outer peripheral surface 60 of the outer peripheral cylinder portion 54 is not limited in any way, and when the collar portion 82 described later is externally inserted from the tip end side of the cap 18. It suffices that the collar portion 82 is configured so as not to prevent the collar portion 82 from moving toward the tip end after overcoming the projecting rib 62 without hindering the overhanging of the projecting rib 62 in the proximal direction. When the protruding rib 62 is passed by the collar portion 82, the collar portion 82 and / or the protruding rib 62 may be slightly deformed.

Further, a flange 66 projecting outward in the radial direction is integrally formed in the proximal end side opening 64 (see FIG. 9) of the peripheral wall portion 52. In the present embodiment, the flange 66 is continuously formed over the entire circumference in the circumferential direction, and its protrusion dimension is different in the circumferential direction. That is, on both sides of the flange 66 in one radial direction (in the present embodiment, both sides in the left-right direction in FIG. 2), large diameter portions 68a and 68a having a large protrusion dimension are provided, while these are large. Small diameter portions 68b and 68b with reduced protrusion dimensions are provided on both sides (both sides in the vertical direction in FIG. 4) in a direction orthogonal to the facing direction of the diameter portions 68a and 68a. In particular, in the present embodiment, recesses 68c and 68c having a protrusion size smaller than that of the large diameter portions 68a and 68a are provided in the central portions of both large diameter portions 68a and 68a in the circumferential direction.

On the other hand, the holding portion 46 has a substantially cylindrical shape as a whole, and is a holding claw portion that can be elastically deformed in the radial direction from the tip of the tubular portion 70 (see FIG. 9) having a substantially straight inner peripheral surface. 72 (see FIG. 9) protrudes toward the tip side. In the present embodiment, four holding claw portions 72 are provided, and are formed at the tip of the tubular portion 70 at equal intervals in the circumferential direction. It should be noted that each of these holding claws 72 has a shape that bends in an abbreviated shape, and is located at a predetermined circumferential distance without abutting against each other.

The holder portion 14 is configured by inserting the holding portion 46 from the base end side opening portion 64 of the main body portion 44 having the above-mentioned structure and integrally assembling the holding portion 46. The protruding tip of the holding claw portion 72 does not reach the bottom wall portion 50, but is positioned as a free end in the holder portion 14. Further, the fixing means between the main body portion 44 and the holding portion 46 is not limited in any way, and may be welding, adhesion, or the like, but in the present embodiment, the inner peripheral surface of the main body portion 44 and the holding portion 46 may be used. Unevenness is provided between the outer peripheral surface and the outer peripheral surface of the surface, and the unevenness is fitted to each other so as to be locked and fixed to each other.

Further, the base end side opening 64 of the holder portion 14 is covered with an air permeable sheet 74 as a lid sheet. The air-permeable sheet 74 is a porous sheet that allows gas to pass through but does not allow bacteria to pass through, for example, and the air-permeable sheet 74 is attached to a flange 66 provided at the base end of the holder portion 14. It is fixed to the base end surface by means such as welding or adhesion.

A needle hub 30 to which the blood collection needle 12 is fixed is attached to the holder portion 14 having such a structure. That is, the needle hub 30 to which the blood collection needle 12 is fixed is inserted from the tip end side opening of the inner peripheral cylinder portion 56 in the main body portion 44 of the holder portion 14, and the male screw 32 and the female screw 58 are screwed together to form the holder portion 14. A blood collection needle 12 and a needle hub 30 are attached to the blood collection needle 12. As a result, the blood collection needle 12 is attached to the tip end side of the holder portion 14.

In the state in which the blood collection needle 12 and the needle hub 30 are attached to the holder portion 14, the blood collection needle 12 and the needle hub 30 are surrounded by the outer peripheral cylinder portion 54 and the inner peripheral cylinder portion 56, while the tip end side of the blood collection needle 12. Needle tip 22 protrudes toward the tip side of the holder portion 14. At the same time, the notch 28 of the blood collection needle 12 and the flashback observation portion 40 of the needle hub 30 are located on the tip side of the inner peripheral cylinder portion 56 of the main body portion 44 and on the inner peripheral side of the outer peripheral cylinder portion 54. .. On the other hand, the needle tip 24 on the base end side of the blood collection needle 12 is inserted into the through hole 48 of the bottom wall portion 50 in a state of being covered with the rubber sleeve 42, and is located inside the peripheral wall portion 52 of the holder portion 14. There is. In particular, in the present embodiment, the needle tip 24 on the proximal end side of the blood collection needle 12 is located on the inner peripheral side of each holding claw portion 72 at an axial position corresponding to the axial intermediate portion of the holding claw portion 72. ing.

Further, the cap 18 has a substantially bottomed tubular shape that opens toward the base end side, and extends in the axial direction. The cap 18 of the present embodiment has a tapered tubular shape in which the outer diameter of the cap 18 gradually decreases toward the tip side, and the middle portion in the axial direction has a substantially constant outer diameter in the axial direction. A sticker sticking portion 76 extending to is formed. The outer diameter dimension of the sticker sticking portion 76 is substantially equal to the outer diameter dimension of the outer peripheral cylinder portion 54 in the main body portion 44 of the holder portion 14. On the other hand, the base end portion of the cap 18 is made smaller than the outer diameter dimension of the seal sticking portion 76, and the outer diameter dimension of the base end portion of the cap 18 is substantially equal to the inner diameter dimension of the outer peripheral cylinder portion 54. ing.

Then, the tip end side of the blood collection needle 12 is inserted from the proximal end side opening of the cap 18, and the proximal end portion of the cap 18 is internally fitted into the outer peripheral tubular portion 54, so that the cap 18 is attached to the holder portion 14. The blood collection needle 12 is attached so as to cover the protruding portion from the holder portion 14. The inner peripheral surface of the opening on the proximal end side of the cap 18 is provided with a plurality of protrusions protruding toward the inner peripheral side in the circumferential direction, and the protruding portion 38 provided at the tip of the needle hub 30 is provided in the circumferential direction. By engaging with, the cap 18 is prevented from rotating in the circumferential direction with respect to the holder portion 14.

Here, in the product shipping state shown in FIGS. 1 and 2, an unused confirmation seal 78 as a seal is attached straddling the outer peripheral cylinder portion 54 in the holder portion 14 and the seal attaching portion 76 in the cap 18. The unused confirmation seal 78 is not limited in any way, but is, for example, a resin tape having an adhesive coated on its inner surface, and extends in the circumferential direction with a predetermined axial dimension. The circumferential dimension of the unused confirmation seal 78 is not limited in any way, but in the present embodiment, it is formed with a circumferential dimension shorter than 1/3 circumference. Further, the axial dimension of the unused confirmation seal 78 is not limited in any way, but the portion attached to the outer peripheral cylinder portion 54 is formed with the axial dimension not reaching the protruding rib 62. Further, the sticking position on the circumference of the unused confirmation sticker 78 is not limited in any way, but in the present embodiment, the direction in which the blade surface 26 is provided in the blood collection needle 12 (direction in front of the paper surface in FIG. 2). An unused confirmation sticker 78 is attached in a direction orthogonal to the above (left side in FIG. 2).

In the axially intermediate portion of the unused confirmation seal 78, a dotted line-shaped easy-to-cut portion 80 is provided at a portion located at the boundary between the holder portion 14 and the cap 18, and the cap 18 from the holder portion 14 is provided. The unused confirmation seal 78 is easily cut when the product is removed. Further, the unused confirmation seal 78 of the present embodiment has an arrow indicating the direction (that is, upward) of removing the cap 18 from the holder portion 14 and a user can easily visually understand the operation of removing the cap 18. , PULL and the like are printed. However, the printing of the unused confirmation sticker 78 is not particularly limited.

By attaching the protector 16 to the holder portion 14 provided with the blood collection needle 12 as described above, the blood collection tube holder 10 of the present embodiment is configured. The protector 16 includes a collar portion 82 attached to the holder portion 14 in an extrapolated state, and a protector main body 84 that covers and protects the used blood collection needle 12 from the side by rotating with respect to the holder portion 14. It is composed of including.

The collar portion 82 has a cylindrical shape that extends continuously over the entire circumference in the circumferential direction. The inner diameter of the collar portion 82 is equal to or slightly larger than the outer diameter of the outer peripheral cylinder portion 54 including the unused confirmation seal 78.

On the other hand, the protector main body 84 has a long concave groove shape in which the groove length dimension is larger than the groove width dimension as a whole, that is, the groove bottom wall portion 86 as the long bottom wall and the groove. A pair of side wall portions 88, 88 projecting from both ends in the circumferential direction of the bottom wall portion 86 to one side in the thickness direction of the groove bottom wall portion 86 is provided. A side opening 90 for covering the blood collection needle 12 from the side is formed by the groove bottom wall portion 86 and the side wall portions 88, 88. In other words, the protector body 84 is formed with a side opening 90 that opens toward the blood collection needle 12 in the rotation direction.

Further, the concave groove (side opening 90) of the protector main body 84 is opened on one side in the length direction (upper side in FIGS. 1 and 2) with the base end side opening portion 92, while in the length direction. It has a dead end shape in which the tip side wall portion 94 (see FIG. 3 and the like) closes on the other side (lower side in FIGS. 1 and 2).

Further, in the concave groove of the protector main body 84, there is a locking portion 96 (see FIG. 3 and the like) that locks the blood collection needle 12 and holds the housed state when the blood collection needle 12 is housed in the protector body 84. It is formed. In the present embodiment, the locking portion 96 protrudes from the groove bottom wall portion 86 toward the opening side of the side opening 90, and is folded back toward the groove bottom wall portion 86 at the protruding tip to form a substantially square shape. It is said to be in the shape. By locking the blood collection needle 12 to the bent portion, the protector main body 84 is held in the housed state of the blood collection needle 12. In the present embodiment, the two locking portions 96, 96 are formed in the concave groove of the protector main body 84 so as to be separated from each other in the axial direction.

The protector main body 84 having such a shape is located on the outer peripheral side of the collar portion 82, and the collar portion 82 and the protector main body 84 are connected to each other by a connecting portion 98. That is, the connecting portion 98 extends from the collar portion 82 to the outer peripheral side, and the outer peripheral surface 100 of the collar portion 82 and the end surface on the side where the side wall portions 88 and 88 of the groove bottom wall portion 86 of the protector main body 84 do not protrude. And are connected to each other by the connecting portion 98. In particular, the connecting portion 98 connects the tip of the collar portion 82 and the end of the groove bottom wall portion 86 of the protector main body 84 on one side in the length direction (the side on which the base end side opening portion 92 is formed). are doing.

In the present embodiment, the connecting portion 98 includes a connecting arm 102 that can be bent with the rotation of the protector main body 84, and an urging arm 104 that gives an urging force to rotate the protector main body 84. Has been done. In particular, in the present embodiment, the connecting arms 102 and 102 are formed on both sides of the urging arm 104 in the circumferential direction.

These connecting arms 102 and 102 are substantially plate-shaped as a whole, and have hinge-shaped thin-walled portions 106 and 106 whose thickness dimensions are reduced in the intermediate portion in the length direction, and the thin-walled portions 106 and 106 are formed. Both sides of the portion 106 are thick portions 108 and 108. The thin-walled portions 106, 106 allow the connecting arms 102, 102 to freely bend, that is, the angle formed by both thick-walled portions 108, 108 can be freely changed.

On the other hand, the urging arm 104 is composed of an elastic piece obtained by bending or bending the intermediate portion in the length direction of the plate-shaped member toward the proximal end side to impart elasticity, and the intermediate portion in the length direction is the bent portion 110. It is said that.

Then, by elastically deforming the urging arm 104, the protector main body 84 is rotationally displaced with respect to the holder portion 14, and the protector main body 84 moves toward another stable position different from the initial position. It has become like. In short, the urging arm 104 enables the protector main body 84 to be selectively positioned at a plurality of stable positions.

That is, in the initial state of the blood collection needle 12 or in the stable position at the time of puncture, the urging arm 104 is curved or bent at the bent portion 110 to reduce the separation distance between the collar portion 82 and the protector main body 84, but the protector. The bent portion 110 of the urging arm 104 is extended with the rotational displacement of the main body 84, and the separation distance between the collar portion 82 and the protector main body 84 is increased, so that the urging arm 104 is originally curved or bent. A restoring force (a force in the direction in which the collar portion 82 and the protector main body 84 tend to approach each other) to return to the bent state is exerted. Then, the bent portion 110 in the urging arm 104 is restored to a bent or bent state by further rotation of the protector main body 84, and the separation distance between the collar portion 82 and the protector main body 84 is reduced, so that the protector main body 84 is formed. Is designed to be positioned in another stable position, which is different from the initial position.

The length, shape, and the like of the urging arm 104 are not limited in any way, but the protector body 84 avoids interference with other members such as the holder portion 14 when the protector body 84 is rotationally displaced. It is preferable that the setting is made so as to be used.

Further, the protector 16 as described above is formed as an integrally molded product of synthetic resin including a collar portion 82, a protector main body 84, and a connecting portion 98 (connecting arms 102, 102 and urging arm 104).

Here, the protector 16 is attached to a holder portion 14 provided with a blood collection needle 12. That is, the collar portion 82 of the protector 16 is fitted onto the outer peripheral cylinder portion 54 of the main body portion 44 of the holder portion 14 from the tip end side. That is, the mounting direction of the collar portion 82 with respect to the holder portion 14 is the direction from the tip end side to the base end side, that is, the direction from the upper side to the lower side. The protector main body 84 is located on the outer peripheral side of the holder portion 14, and the protector main body 84 is rotationally displaced around the connecting portion 98 to cover and protect the blood collection needle 12 from the side. ..

When the collar portion 82 is fitted onto the outer peripheral cylinder portion 54, the collar portion 82 gets over the protruding rib 62 provided on the outer peripheral surface 60 of the outer peripheral cylinder portion 54, and the collar portion 82 is formed with the protruding rib. It is designed to be positioned closer to the base end than 62. Then, the protruding rib 62 engages with the upper end portion of the collar portion 82, which is the end portion in the pull-out direction, to prevent the collar portion 82 from coming off from the outer peripheral cylinder portion 54. In this embodiment, the collar portion 82 is extrapolated and attached to the outer peripheral cylinder portion 54 at a position avoiding the flashback observation portion 40 (on the base end side of the flashback observation portion 40). There is.

The protector 16 is movable (rotatable) in the circumferential direction with respect to the outer peripheral cylinder portion 54 by attaching the collar portion 82 to the outer peripheral cylinder portion 54 in an extrapolated state. However, the inner peripheral surface of the collar portion 82 and the outer peripheral surface 60 of the outer peripheral cylinder portion 54 are in contact with each other with a certain amount of frictional force, and the protector 16 does not freely rotate with respect to the holder portion 14, and is positioned in the circumferential direction. It is installed in the state. That is, the protector 16 can rotate in the circumferential direction with respect to the holder portion 14 by applying an external force in the circumferential direction to the protector 16 in a predetermined amount or more.

In the present embodiment, in the product shipping state shown in FIGS. 1 and 2, one large diameter portion 68a of the flange 66 provided at the base end of the holder portion 14 at the circumferential position of the protector main body 84 in the protector 16 (FIG. It is set to the same position on the circumference as the extension direction (to the right of 2). The circumferential position of the protector main body 84 in the product shipping state is opposite to the unused confirmation seal 78 with the blood collection needle 12 sandwiched between them. As a result, for example, the risk that the unused confirmation sticker 78 cannot be seen due to the protector main body 84 can be reduced.

Such a blood collection tube holder 10 can be effectively sterilized by, for example, a sterilizing gas. That is, since the base end side opening 64 of the holder portion 14 is covered with the air permeable sheet 74, sterilizing gas is introduced into the holder portion 14 to sterilize the inside of the holder portion 14, while the holder portion 14 is sterilized. The invasion of bacteria and the like into the holder portion 14 can be prevented and the inside of the holder portion 14 can be held in a sterilized state. The sterilization process may be performed before the protector 16 is assembled to the holder portion 14.

As shown in FIGS. 1 and 2, the blood collection tube holder 10 of the present embodiment having the above structure has the length direction of the protector body 84 of the protector 16 parallel to the needle axis direction in the product shipping state. That is, the protector main body 84 is held in a stable position along the holder portion 14. At this time, a gap 112 having a predetermined size is formed between the peripheral wall portion 52 of the holder portion 14 and the groove bottom wall portion 86 of the protector main body 84, and in the present embodiment, the length of the protector main body 84 is long. A gap 112 is formed over substantially the entire length in the direction.

Then, at the time of blood collection, first, the cap 18 is pulled out toward the tip side and removed from the holder portion 14, and the needle tip 22 of the blood collection needle 12 is exposed as shown in FIGS. 3 and 4. At that time, the unused confirmation sticker 78 affixed across the cap 18 and the outer peripheral cylinder portion 54 of the holder portion 14 is cut by the easy-to-cut portion 80. At the time of blood collection, it is also possible to rotate the protector 16 with respect to the holder portion 14 in the circumferential direction so that the protector main body 84 is positioned in the same direction as the direction of the blade surface 26 formed on the needle tip 22. Is. As a result, when the blood collection needle 12 is punctured, the protector body 84 is not located on the skin side when the blade surface 26 is punctured toward the side opposite to the skin, and the angle with respect to the skin is reduced to reduce the blood collection needle 12. Can be punctured. As a result, the risk of the patient feeling pain or damaging blood vessels may be reduced.

Then, the blood sampling needle 12 is punctured into the patient. At that time, since the main body portion 44 of the needle hub 30 and the holder portion 14 is a transparent member, the flashback of blood can be confirmed by the flashback observation unit 40 through these. Since the rubber sleeve 42 is covered on the proximal end side of the blood collection needle 12, blood leakage from the needle tip 24 on the proximal end side can be prevented.

Subsequently, the air permeable sheet 74 fixed to the base end side opening 64 of the holder portion 14 is peeled off, removed from the holder portion 14, the blood collection tube 20 is inserted, and the blood collection needle 12 is connected. The structure of the blood collection tube 20 is not limited, but in the present embodiment, the rubber stopper 116 is attached to the tip opening of the tube main body 114, and the structure is sealed under reduced pressure. Then, by inserting the blood collection tube 20 from the base end side opening 64 of the holder portion 14, each holding claw portion 72 is pushed toward the outer peripheral side, and the restoring reaction force of the holding claw portion 72 causes the holder portion 14, particularly the holding claw portion 72. The blood collection tube 20 is held by the blood collection tube 20. At the same time, the needle tip 24 on the base end side of the blood collection needle 12 comes into contact with the rubber stopper 116 via the rubber sleeve 42. After that, by further pushing the blood collection tube 20, the needle tip 24 penetrates the rubber sleeve 42 and the rubber stopper 116 and is inserted into the tube main body 114. As a result, blood is collected in the blood collection tube 20 through the blood collection needle 12.

Then, after collecting blood, the protector main body 84 is rotationally displaced in a direction approaching the blood collection needle 12. That is, by inserting a finger into the gap 112 between the holder portion 14 and the protector main body 84 and applying an external force in the rotational direction to the protector main body 84, the bending portion 110 in the urging arm 104 extends in the direction (collar portion 82). It is elastically deformed in the direction in which it is separated from the protector main body 84), and at the same time, a force is applied to the urging arm 104 in the direction of bending (the direction in which the collar portion 82 and the protector main body 84 approach each other). Then, by further rotating and displacing the protector main body 84, as shown in FIG. 5, the bent portion 110 of the urging arm 104 is restored to a bent or bent state, and the protector main body 84 automatically returns to a stable position. It is displaced to. In short, as the stable position of the protector main body 84, a separation position away from the blood collection needle 12 as shown in FIGS. 1 and 2 and an approach position close to the blood collection needle 12 as shown in FIG. 5 are set. Any stable position can be selected by elastic deformation of the urging arm 104.

It is preferable that the separated position and the approached position are separated by 90 degrees or more in the rotation direction of the protector main body 84, and more preferably 120 degrees or more. That is, since the separation position and the approach position are separated by 90 degrees or more in the rotation direction, when the protector main body 84 is in the separation position, the needle tip 22 of the blood collection needle 12 is more reliably exposed and punctured. At the time of operation, the risk that the puncture site cannot be seen due to the protector main body 84 can be reduced. Further, when the protector main body 84 is in an approaching position, the protector main body 84 can be brought closer to the blood collection needle 12, so that the subsequent protection operation of the blood collection needle 12 can be facilitated.

Then, by pressing the protector main body 84 located at the approaching position with a finger or the like in a direction (rotational direction) closer to the blood collection needle 12, the protector main body 84 is collected with blood as shown in FIGS. 6 to 11. Position it in the accommodation position to accommodate the needle 12. As a result, the blood collection needle 12 can be laterally covered and protected by the protector body 84. Further, the urging force of the urging arm 104 may be designed so as to stop at a position before the protector main body 84 reaches the accommodation position. In this configuration, the user presses the protector body 84 with a finger or the like or presses it against a flat surface such as a desk to position the protector body 84 at a storage position for accommodating the blood collection needle 12. ..

Such a containment state can be held by locking the blood collection needle 12 to the locking portions 96, 96. That is, the blood collection needle 12 and / or the locking portions 96, 96 are elastically deformed when they come into contact with each other, while the blood collection needle 12 gets over the folded tip of the locking portions 96, 96, thereby causing the blood collection needle. The blood collection needle 12 is locked to the locking portions 96, 96 by restoring and deforming the 12 and / or the locking portions 96, 96. As a result, after the blood collection needle 12 is accommodated by the protector main body 84, the protector main body 84 is rotationally displaced in a direction away from the blood collection needle 12 to prevent the blood collection needle 12 from being re-exposed.

The displacement of the protector body 84 for covering the blood collection needle 12 from the side in the rotation direction may be limited by the blood collection needle 12 coming into contact with the groove bottom wall portion 86 of the protector body 84, for example, the protector body. It may be limited by such that one end surface of the 84 in the length direction hits the upper end portion of the collar portion 82, or hits the protruding rib 62 provided on the outer peripheral cylinder portion 54.

In the blood collection tube holder 10 of the present embodiment having the above-mentioned structure, the color portion 82 of the protector 16 which is a characteristic part of the present invention will be described in detail as shown in FIG. In FIG. 12, the protector main body (84) and the connecting portion (98) of the protector 16 are not shown.

That is, in the present embodiment, in the collar portion 82, the chamfered portion 118 is provided at the lower inner peripheral angle portion of the holder portion 14 which is in front of the outer peripheral cylinder portion 54 in the mounting direction. In the chamfered portion 118, the lower end surface of the collar portion 82 is curved in an R-plane shape over the entire surface, and the axial dimension of the collar portion 82 gradually decreases toward the inner peripheral side. .. As a result, the minimum inner diameter of the chamfered portion 118 is equal to the inner diameter of the collar portion 82, and is equal to or slightly larger than the outer diameter of the outer peripheral cylinder portion 54 including the unused confirmation seal 78. In other words, the inner diameter of the chamfered portion 118 is equal to or larger than the outer diameter of the outer peripheral cylinder portion 54 including the unused confirmation seal 78. In the vertical cross section shown in FIG. 12, the center of curvature of the R surface constituting the chamfered portion 118 is located above the chamfered portion 118. Further, in the present embodiment, the chamfered portion 118 is continuously provided over the entire circumference in the circumferential direction. In FIG. 12, the chamfered portion 118, which is a feature of the collar portion 82, is exaggerated for the sake of clarity, and does not necessarily match the actual shape and dimensions.

By adopting the collar portion 82 having such a shape, in order to sufficiently obtain the fitting force between the collar portion 82 and the outer peripheral cylinder portion 54 when the collar portion 82 is externally attached to the outer peripheral cylinder portion 54. Even when the collar portion 82 has a smaller diameter, the inner peripheral angle portion that is easily rubbed with the unused confirmation sticker (78) attached to the outer peripheral surface 60 of the outer peripheral cylinder portion 54 is formed into an R surface shape. , Contact with the unused confirmation seal (78) can be relaxed to prevent damage to the unused confirmation seal (78). That is, in the present embodiment, the chamfered portion 118 constitutes a contact mitigation mechanism that alleviates the contact of the collar portion 82 with the unused confirmation seal (78).

Further, in the present embodiment, a protruding rib 62 protruding toward the outer peripheral side is formed on the outer peripheral surface 60 of the outer peripheral cylinder portion 54. By providing such a protruding rib 62, the protruding rib 62 and the upper end portion which is the end portion of the collar portion 82 in the pulling direction are engaged with each other, and the pulling out of the collar portion 82 upward is prevented. That is, in the present embodiment, the retaining engaging portion for preventing the collar portion 82 from coming off is configured to include the protruding rib 62 between the holder portion 14 and the collar portion 82.

According to the blood collection tube holder 10 of the present embodiment having the above structure, in the initial state, the blood collection needle 12 is covered with the cap 18, while the proximal end side opening 64 is covered with the air permeable sheet 74. Therefore, the sterilized state in the holder portion 14 can be stably maintained. As a result, unlike the conventional blood collection tube holder, it can be stored in the packing container as it is without individual packaging by the blister pack. The air permeable sheet 74 is not necessarily indispensable, and when the air permeable sheet 74 is not attached, it can be individually wrapped by a blister pack or the like and stored in a packing container.

Then, as a result of adopting such a structure, as a means for determining whether or not the blood collection tube holder 10 is unused, the holder portion 14 is not attached straddling the outer peripheral cylinder portion 54 and the cap 18. The use confirmation seal 78 is adopted. By visually confirming whether or not the unused confirmation seal 78 has been cut, it is possible to determine whether or not the blood collection tube holder 10 is unused. Under the adoption of the unused confirmation seal 78, by providing the chamfered portion 118 at the inner peripheral angle portion of the collar portion 82, when the collar portion 82 is assembled to the outer peripheral cylinder portion 54, the collar portion 82 and the unused confirmation seal 78 are used. The contact is alleviated and damage to the unused confirmation seal 78 can be effectively prevented.

Further, even under the adoption of the chamfered portion 118, by providing the protruding rib 62 on the outer peripheral surface 60 of the outer peripheral cylinder portion 54, the protruding rib 62 and the upper end portion of the collar portion 82 are engaged with each other, and the outer peripheral cylinder portion 54 The omission of the collar portion 82 of the above can be effectively prevented.

Next, FIG. 13 shows a blood collection tube holder 120 as a second embodiment of the present invention. The protector (16) of the blood collection tube holder 120 includes a collar portion 122 shown in FIG. In the following embodiments, the members and parts substantially the same as those of the embodiment are designated by the same reference numerals as those of the embodiments, and detailed description thereof will be omitted. Further, also in FIG. 13, the protector main body (84) and the connecting portion (98) in the protector (16) are not shown.

That is, the inner peripheral surface 124 of the collar portion 122 of the present embodiment is provided with the contact ridge 126 projecting to the inner peripheral side. The contact ridge 126 has a substantially semi-circular cross section and extends over a substantially total length in the axial direction of the collar portion 122. In the present embodiment, on the inner peripheral surface 124 of the collar portion 122, three contact ridges 126, 126, 126 are formed at substantially equal intervals in the circumferential direction. The inner diameter dimension of the inner peripheral surface 124 of the collar portion 122 of the present embodiment is larger than the outer diameter dimension of the outer peripheral surface 60 of the outer peripheral cylinder portion 54. As a result, when the collar portion 122 is attached to the outer peripheral cylinder portion 54, the inner peripheral surface 124 of the collar portion 122 and the outer peripheral surface 60 of the outer peripheral cylinder portion 54 are prevented from coming into contact with each other. On the other hand, the top portion of each of the contact ridges 126, 126, 126, which is the inner peripheral end portion, is in contact with the outer peripheral surface 60 of the outer peripheral cylinder portion 54, and the fitting force causes the collar to the outer peripheral cylinder portion 54. The portion 122 is designed to be attached in an extrapolated state.

The protrusion dimension B (see FIG. 13) of the contact ridge 126 from the inner peripheral surface 124 of the collar portion 122 is not limited in any way, and the collar portion 122 is externally inserted from the tip end side of the cap 18. It may be configured so as not to prevent the collar portion 122 from moving toward the tip end with respect to the outer peripheral cylinder portion 54. However, in FIG. 13, the contact protrusions 126, 126, 126, which are characteristic of the collar portion 122, are exaggerated for the sake of clarity, and do not necessarily match the actual shape and dimensions.

Here, the unused confirmation seal 78 (shown by a two-dot chain line in FIG. 13) of the present embodiment has a circumferential dimension shorter than one-third circumference, and has adjacent contact ridges 126 and 126. It is located between the circumferential directions. In other words, these contact ridges 126, 126, 126 are provided at positions where the unused confirmation seal 78 is detached in the circumferential direction. As a result, when the collar portion 122 is attached to the outer peripheral cylinder portion 54, the contact between the contact ridges 126, 126, 126 and the unused confirmation seal 78 is avoided (relaxed), so that the unused confirmation seal 78 is removed. It can be prevented from being damaged. Therefore, in the present embodiment, the contact relaxation mechanism for alleviating the contact with the unused confirmation seal 78 is configured by the contact protrusions 126, 126, 126. In particular, in the present embodiment, since contact with the unused confirmation seal 78 is completely avoided, the protruding dimension of the contact ridge 126 from the inner peripheral surface 124 of the collar portion 122 is increased to increase the protrusion dimension of the collar portion. It is also possible to secure a large fitting force with respect to the outer peripheral cylinder portion 54 of 122.

Further, also in the present embodiment, since the protruding rib 62 is provided on the outer peripheral surface 60 of the outer peripheral cylinder portion 54, the protruding rib 62 and the upper end portions of the collar portions 122, particularly the contact ridges 126, 126, 126, are provided. Can effectively prevent the collar portion 122 from coming off from the outer peripheral cylinder portion 54.

Therefore, even in the blood collection tube holder 120 of the present embodiment having the above-mentioned structure, the same effect as that of the first embodiment can be exhibited.

Next, FIG. 14 shows a blood collection tube holder 130 as a third embodiment of the present invention. The protector (16) of the blood collection tube holder 130 includes a collar portion 132 shown in FIG. Further, also in FIGS. 14 and 15, the illustration of the protector main body (84) and the connecting portion (98) in the protector (16) is omitted.

That is, in the collar portion 132 of the present embodiment, the inner diameter dimension on the base end side is larger than the inner diameter dimension on the tip end side, and in the collar portion 132, the base end side which is the front side in the mounting direction to the outer peripheral cylinder portion 54 is. The tip side, which is the rear side in the mounting direction to the large diameter portion 134 and the outer peripheral cylinder portion 54, is the small diameter portion 136. Then, on the inner peripheral surface 138 of the collar portion 132, the large diameter portion 134 and the small diameter portion 136 are connected by an inclined portion 140 whose inner diameter dimension gradually changes. The inclined portion 140 is continuously provided over the entire circumference in the circumferential direction. In particular, in the present embodiment, the inner peripheral surface of the inclined portion 140 is a curved surface 142 whose inner diameter gradually decreases toward the tip side, and in the vertical cross section shown in FIG. 15, the center of curvature of the curved surface 142. Is located above the curved surface 142. In FIG. 15, the inclined portion 140 and the curved surface 142, which are characteristic of the collar portion 132, are exaggerated for the sake of clarity, and do not necessarily match the actual shape and dimensions. Further, in FIG. 15, the inclined portion 140 is located at the tip end portion of the collar portion 132, but the position and dimensions of the inclined portion 140 in the axial direction are not limited in any way. By lengthening the axial dimension of the small diameter portion 136 and / or the inclined portion 140, the area to be fitted to the outer peripheral surface 60 of the outer peripheral cylinder portion 54 is increased, and the fitting and fixing of the collar portion 132 and the outer peripheral cylinder portion 54 are fixed. Can be made stronger.

The inner diameter of the large diameter portion 134 is larger than the outer diameter of the outer peripheral cylinder portion 54 including the unused confirmation seal (78). The inner diameter of the small diameter portion 136 is not limited in any way, does not prevent the collar portion 132 from being extrapolated from the tip end side of the cap 18, and is an outer peripheral cylinder portion including an unused confirmation seal (78). It may be configured so as to prevent the collar portion 132 from moving toward the tip end when the collar portion 132 is attached to the outer peripheral cylinder portion 54 and has an outer diameter dimension of 54 or more. That is, in the present embodiment, the inner diameter of the inner peripheral surface 138 of the collar portion 132 is set to be equal to or larger than the outer diameter of the outer peripheral cylinder portion 54 including the unused confirmation seal (78).

Further, in the present embodiment, in the bottom wall portion 50 of the holder portion 14, a fitting cylinder portion 144 projecting upward is provided on the outer peripheral side of the outer peripheral cylinder portion 54. The fitting cylinder portion 144 is continuously provided over the entire circumference in the circumferential direction, and its axial dimension is smaller than the axial dimension of the collar portion 132. In particular, in the present embodiment, the outer diameter dimension of the base end portion of the outer peripheral surface 145 of the collar portion 132 and the inner diameter dimension of the fitting cylinder portion 144 are substantially equal to each other, and the base end portion of the outer peripheral surface 145 and the fitting cylinder portion are substantially equal to each other. The holder portion 14 and the collar portion 132 are fixed to each other by fitting the 144 to each other. In the present embodiment, the tip end side of the collar portion 132 is locked by the protruding rib 62 to prevent the collar portion 132 from coming off toward the tip end, but such a configuration is not always essential. The holder portion 14 and the collar portion 132 are fixed by either fitting the base end portion of the outer peripheral surface 145 to the fitting cylinder portion 144 or locking the tip end side of the collar portion 132 and the protruding rib 62. It may have been done.

Further, as a modification of the present embodiment, as in the blood collection tube holder 130'shown in FIG. 16, the engaging recess 146 that opens to the inner peripheral side is provided on the inner peripheral surface of the fitting cylinder portion 144 in the entire circumferential direction. On the other hand, the engaging convex portion 148 protruding toward the outer peripheral side may be continuously provided over the entire circumference in the circumferential direction at the base end of the outer peripheral surface 145 of the collar portion 132.

The collar portion 132 of the protector (16) having the above structure is attached to the outer peripheral cylinder portion 54 of the holder portion 14 in an extrapolated state, whereby the blood collection tube holder 130 of the present embodiment is configured. When the collar portion 132 is attached to the outer peripheral cylinder portion 54, the base end side of the collar portion 132 has a large diameter having an inner diameter larger than the outer diameter of the outer peripheral cylinder 54 including the unused confirmation seal (78). Since it is the portion 134, contact with the unused confirmation seal (78) is avoided. Further, even if the small diameter portion 136 on the tip end side of the collar portion 132 comes into contact with the unused confirmation seal (78), the small diameter portion 136 and the large diameter portion 134 are curved surfaces on the inner peripheral surface 138 of the collar portion 132. Since it is connected by 142, that is, the inner peripheral angle portion of the small diameter portion 136 is the curved surface 142, the contact with the unused confirmation seal (78) is relaxed. Therefore, in the present embodiment, the contact mitigation mechanism for alleviating the contact with the unused confirmation seal (78) by the inner peripheral surface 138 of the collar portion 132 having the large diameter portion 134, the small diameter portion 136, and the inclined portion 140 is provided. It is configured.

Further, in the embodiment shown in FIG. 16, the base end portion of the collar portion 132 is inserted between the fitting cylinder portion 144 and the outer peripheral cylinder portion 54 in the radial direction, and the engaging recess 146 and the engaging convex portion 148 are inserted. Are engaged in a fitted state. This prevents the collar portion 132 from coming off upward from the outer peripheral cylinder portion 54. In this embodiment, in addition to the protruding rib 62 provided on the outer peripheral surface 60 of the outer peripheral cylinder portion 54, the collar portion 132 The retaining engaging portion is formed by the engaging concave portion 146 and the engaging convex portion 148 provided between the outer peripheral surface 145 and the inner peripheral surface of the fitting cylinder portion 144 of the holder portion 14.

Therefore, the same effect as that of the first embodiment can be exhibited even in the blood collection tube holders 130 and 130'of the present embodiment having the above-mentioned structure.

Although the embodiments of the present invention have been described above, the present invention is not limitedly interpreted by the specific description in the embodiments, and various changes, modifications, improvements, etc. are made based on the knowledge of those skilled in the art. It can be carried out in the form of adding.

For example, in the above embodiment, in the product shipping state shown in FIG. 1 and the like, the protector main body 84 is in the same direction (in FIG. 2) as the one large diameter portion 68a of the flange 66 at the base end of the holder portion 14. Although it was located on the right side), it is not limited to this aspect. That is, as in the blood collection tube holder 150 shown in FIG. 17, the protector main body 84 is positioned on the flange 66 at the base end of the holder portion 14 in the direction in which the small diameter portions 68b and 68b are located (for example, to the right in FIG. 17). You may. Alternatively, the protector main body 84 may be located in the same direction on the circumference of the other large diameter portion 68a, that is, in the same direction as the direction in which the unused confirmation seal (78) is provided.

Further, in the above-described embodiment, the holder portion 14 and the protector 16 are assembled in the state shown in FIGS. However, the product is not limited to such a mode. That is, like the blood collection tube holder 160 shown in FIG. 18, the protector main body 84 is packaged in the packing container in a state of being rotationally displaced in a direction closer to the blood collection needle 12 than shown in FIGS. 1 and 2. The product may be shipped.

The structure of the protector body and the connecting portion of the protector is not limited to that described in the above embodiment. That is, for example, the protector main body may be provided with a side opening so that the blood collection needle after use can be covered from the side. Further, in the above embodiment, the connecting portion 98 is composed of the connecting arms 102 and 102 and the urging arm 104, but the urging arm is not indispensable, and the protector main body is manually moved from the separated position to the accommodating position. You may move it with.

Further, in the above embodiment, the tip portion of the holder portion 14 has a double tubular structure consisting of the inner peripheral cylinder portion 56 and the outer peripheral cylinder portion 54, and the needle hub 30 is attached to the inner peripheral cylinder portion 56, and the needle hub 30 is attached to the inner peripheral cylinder portion 56. The collar portions 82, 122, 132 are attached to the outer peripheral cylinder portion 54 in an extrapolated state, but the structure is not limited to this. That is, for example, the tip portion of the holder portion may have a single cylinder structure, and the needle hub may be attached to the inner peripheral side of the tubular portion and the collar portion may be attached to the outer peripheral side in an extrapolated state. That is, in the above embodiment, the outer peripheral cylinder portion 54 is not indispensable, and the tip portion of the holder portion is formed by the inner peripheral cylinder portion, and the collar portion is attached to the inner peripheral cylinder portion in an extrapolated state. It may be.

Furthermore, in the first embodiment, the chamfered portion 118 is provided in the collar portion 82 over the entire circumference in the circumferential direction, but at least a sticker such as an unused confirmation sticker is attached on the circumference. It suffices if it is provided in the portion.

Similarly, in the third embodiment, in the collar portion 132, the large diameter portion 134 and the inclined portion 140 are provided over the entire circumference in the circumferential direction, but at least an unused confirmation seal or the like is provided on the circumference. It suffices if it is provided in the part where the seal is affixed.

However, the seal such as the unused confirmation seal is not limited to the embodiment in which the circumferential dimension is shorter than 1/3 circumference as described in the above embodiment, and is continuous over the entire circumference of the circumferential direction, for example. It may be provided intermittently over the entire circumference in the circumferential direction.

Further, in the second embodiment, the three contact protrusions 126, 126, 126 are provided, but the number, the circumferential dimension, and the like may vary depending on the arrangement mode of the seal such as the unused confirmation seal. It may be changed or set. Further, the contact ridges do not have to be continuously provided over the entire axial length of the collar portion, and may be partially provided in the axial direction. Furthermore, the cross-sectional shape of the contact ridge is not limited to a semicircular shape, and various shapes such as a rectangular shape and a polygonal shape can be adopted.

Further, in the first embodiment, the inner peripheral angle portion of the collar portion 82 is chamfered in an R-plane shape over the entire surface to form the chamfered portion 118. Similarly, in the third embodiment, the chamfered portion 118 is configured. The inner peripheral angle portion of the small diameter portion 136 is chamfered in an R-plane shape over the entire surface to form an inclined portion 140 (curved surface 142), but the present invention is not limited to this aspect. That is, the entire surface may be chamfered in a C-plane shape, or the inner peripheral angle portion of the portion chamfered in a C-plane shape may be chamfered in an R-plane shape. Further, in the third embodiment, the large diameter portion 134 and the small diameter portion 136 may be connected by a step extending in the radial direction without forming the inclined portion 140.

Furthermore, in the modified example of the third embodiment shown in FIG. 16, in addition to the protruding rib 62, the engaging concave portion 146 and the engaging convex portion 148 constitute the retaining engaging portion. The joint may be composed of only the engaging recess and the engaging protrusion. That is, the protruding rib is not indispensable in the present invention, and also in the first and second embodiments, in addition to the protruding rib, an engaging concave portion and an engaging convex portion are adopted to form a retaining engaging portion. Alternatively, the retaining engaging portion may be configured only by the engaging concave portion and the engaging convex portion without providing the protruding rib.

In the modified example of the third embodiment shown in FIG. 16, the collar portion 132 is provided with the engaging convex portion 148, and the fitting cylinder portion 144 of the holder portion 14 is provided with the engaging concave portion 146. However, the unevenness may be provided in reverse. Alternatively, a retaining engaging portion that engages with the unevenness to prevent the collar portion from coming off may be provided between the outer peripheral surface of the outer peripheral cylinder portion and the inner peripheral surface of the collar portion.

Alternatively, the base end surface of the collar portion may be provided with a locking projection that protrudes downward and the protruding tip bends in the direction perpendicular to the axis, while the bottom wall portion of the holder portion may be provided with a through hole that penetrates in the axial direction. In such a case, by inserting the locking projection through the through hole and locking the locking projection with respect to the bottom wall portion, it is possible to prevent the collar portion from coming off upward from the holder portion. That is, in such a case, the retaining engagement portion is configured by these locking projections and through holes.

Further, in the above-described embodiment, the protruding ribs 62 are continuously provided over the entire circumference in the circumferential direction, but the protruding ribs may be partially provided in the circumferential direction. Similarly, in the modification of the third embodiment shown in FIG. 16, the engaging recess 146 and the engaging convex portion 148 are continuously provided over the entire circumference in the circumferential direction, but these are engaged. The concave portion and the engaging convex portion may be partially provided in the circumferential direction.

In the first to third embodiments, different contact relaxation mechanisms are adopted in the collar portions 82, 122, 132, respectively, but two or three of these are adopted in combination with each other. You may. That is, for example, in the collar portion, a mode in which the inner peripheral angle portion of the base end is used as a chamfered portion and a mode in which a contact ridge is provided on the inner peripheral surface may be adopted at the same time.

Further, in the above-described embodiment, the unused confirmation seal 78 is attached so as to straddle the cap 18 and the outer peripheral cylinder portion 54 of the holder portion 14, but the present invention is not limited to this aspect. That is, a sticker such as an unused confirmation sticker may be attached to either the cap or the holder portion, that is, only to the cap portion, or may be attached only to the holder portion. When the unused confirmation sticker is attached to either the cap or the holder, for example, a mark or the like is provided at the position corresponding to the unused confirmation sticker on the other of the cap and the holder, and these are not used. By visually confirming whether or not the use confirmation sticker and the mark are at the corresponding positions, it is possible to determine whether or not the blood collection tube holder is unused. Even if the unused confirmation sticker is attached to both the cap and the holder, it is not necessary to attach it across the space between them, and the unused confirmation sticker is attached to the cap and the holder. The portion attached to the portion may be separated from each other.

Further, in the above embodiment, in order to confirm whether or not the blood collection tube holders 10, 120, 130, 130', 150, 160 are unused, straddling the cap 18 and the outer peripheral cylinder portion 54 of the holder portion 14. Although the unused confirmation sticker 78 is attached, the seal attached to the cap and / or the holder portion is not limited to the unused confirmation sticker. That is, the sticker affixed to at least one of the cap and the holder may have, for example, a company logo or a product number.
In addition, the present invention originally includes the inventions described below, and the configuration and action / effect thereof will be described in the appendix.
(I) A blood collection tube holder in which a protector covering the used blood collection needle is externally attached to the tip portion of the tubular holder portion to which the blood collection needle is attached to the tip side. A removable cap that covers the blood collection needle is attached to the holder portion, while the holder portion has a seal attached to at least one of the cap portion and the holder portion, and the tip portion of the holder portion. On the other hand, the collar portion is provided with a contact relaxation mechanism for alleviating contact of the collar portion with the seal attached to at least one of the cap and the holder portion when the collar portion is attached to the collar portion by external insertion. A blood collection tube holder, characterized in that a retaining engaging portion for preventing the collar portion from coming off is provided between the holder portion and the collar portion.
(Ii) The holder portion has an outer peripheral cylinder portion provided at the tip end portion of the holder portion, the seal is attached to the outer peripheral cylinder portion, and the inner diameter of the contact relaxation mechanism is the seal. The blood collection tube holder according to (i), which has a size equal to or larger than the outer diameter of the outer peripheral cylinder including the outer peripheral cylinder.
(Iii) As the contact relaxation mechanism, a large-diameter portion provided on the inner peripheral surface of the collar portion on the inner peripheral surface on the front side in the mounting direction with respect to the holder portion, and gradually from the large-diameter portion toward the small-diameter portion on the rear side in the mounting direction. The blood collection tube holder according to (i) or (ii), wherein the inner peripheral surface of the collar portion having an inclined portion whose inner diameter changes is adopted.
(Iv) The blood collection tube holder according to (i) or (ii), wherein a chamfered portion provided at an inner peripheral angle portion on the front side in the mounting direction of the collar portion with respect to the holder portion is adopted as the contact relaxation mechanism. ,
(V) The blood collection tube holder according to (i), wherein as the contact relaxation mechanism, a contact ridge provided at a position where the seal is detached in the circumferential direction on the inner peripheral surface of the collar portion is adopted.
(Vi) As the retaining engaging portion, an engaging projection is adopted which is projected from the outer peripheral surface of the tip portion of the holder portion and is engaged with the end portion in the pulling direction of the collar portion (i). The blood collection tube holder according to any one of (v).
(Vi) As the retaining engagement portion, concave portions and convex portions provided between the outer peripheral surface of the collar portion and the holder portion and engaged with each other unevenly are adopted (i) to (vi). The blood collection tube holder according to any one item,
(Viii) The seal is an unused confirmation seal that can confirm the unused state of the blood collection tube holder, and is affixed across the cap and the holder portion and cut by removing the cap during use. The blood collection tube holder according to any one of (i) to (vii).
Including inventions related to.
According to the blood collection tube holder having a structure according to the aspect described in (i) above, the collar portion is provided with a contact relaxation mechanism for alleviating contact with the seal, thereby avoiding damage to the seal and providing the collar portion. It can be attached to the tip of the holder. In addition to that, by providing a retaining engaging portion for preventing the collar portion from coming off between the holder portion and the collar portion, the collar portion can be prevented from coming off. That is, in the blood collection tube holder of this embodiment, the contradictory effects of preventing damage to the seal while ensuring sufficient fitting force to the holder portion in the collar portion are exhibited at the same time, and from the holder portion. It also effectively prevents the collar part from falling off.
The contact relaxation mechanism according to the embodiment (i) is preferably configured by any of the embodiments (ii) to (v).
Further, it is preferable that the retaining engagement portion in the embodiment described in (i) above is configured in the embodiment (vi) or (vii) described above.
According to the blood collection tube holder having a structure according to the embodiment described in the above (viii), an unused one is attached between the cap and the holder portion as a means for determining whether or not the blood collection tube holder is in an unused state. Uses a confirmation sticker. That is, the unused confirmation seal is cut by removing the cap from the holder part, and the unused confirmation seal is visually confirmed when the blood collection tube holder is used, so that the blood collection tube holder is unused. It is possible to determine whether or not it is. This makes it possible to more reliably determine whether or not the blood collection tube holder is in an unused state.

10,120,130,130', 150,160: Blood collection tube holder, 12: Blood collection needle, 14: Holder part, 16: Protector, 18: Cap, 54: Outer peripheral cylinder part (tip part of holder part), 60: Outer peripheral surface of the tip of the holder, 62: protruding rib (engagement protrusion, retaining engagement), 74: air permeation sheet (lid sheet), 78: unused confirmation seal (seal), 82, 122, 132: Collar part, 100, 145: Outer peripheral surface of collar part, 118: Chamfered part (contact relaxation mechanism), 124: Inner peripheral surface, 126: Contact ridge (contact relaxation mechanism), 134: Large diameter part, 136: Small diameter Part 138: Inner peripheral surface (contact relaxation mechanism), 140: Inclined part, 146: Engagement concave part (removal engagement part), 148: Engagement convex part (removal engagement part)

Claims (5)

A blood collection tube holder in which a protector covering the used blood collection needle is extrapolated in the collar portion to the tip portion of the tubular holder portion to which the blood collection needle is attached to the tip side.
While a removable cap that covers the blood collection needle is attached to the holder portion,
It has a seal that is affixed straddling between the cap and the holder portion.
The collar is a contact mitigation mechanism that alleviates the contact of the collar portion with the seal attached across the cap and the holder portion when the collar portion is attached to the tip portion of the holder portion by extrapolation. While it is provided in the department
The protector is connected to the tip portion of the collar portion by a connecting portion, and the protector is connected to the tip portion of the collar portion.
The tip of the collar portion engages with an engaging protrusion projecting from the base end side of the seal sticking position on the outer peripheral surface of the axially intermediate portion of the holder portion, whereby the holder portion of the collar portion is engaged. There is a retaining engagement part to prevent it from coming off.
On the inner peripheral surface of the collar portion, a small diameter portion close to the outer peripheral surface of the holder portion is provided so as to extend in the axial direction from the tip portion of the collar portion.
As the contact relaxation mechanism, the blood collection tube holder is provided with a diameter-expanding portion that expands in diameter toward the front side in the mounting direction at the end portion of the small-diameter portion on the front side in the mounting direction to the holder portion . The holder portion has an outer peripheral cylinder portion provided at the tip end portion of the holder portion.
The seal is attached to the outer peripheral cylinder portion, and is attached to the outer peripheral cylinder portion.
The blood collection tube holder according to claim 1, wherein the inner diameter of the contact relaxation mechanism is larger than the outer diameter dimension of the outer peripheral cylinder portion including the seal. As the contact relaxation mechanism, the inner diameter gradually changes from the large diameter portion provided on the inner peripheral surface of the collar portion on the front side in the mounting direction with respect to the holder portion and from the large diameter portion to the small diameter portion on the rear side in the mounting direction. The blood collection tube holder according to claim 1 or 2, wherein the inner peripheral surface of the collar portion having the inclined portion is adopted. The blood collection tube holder according to claim 1 or 2, wherein a chamfered portion provided at an inner peripheral angle portion on the front side in the mounting direction of the collar portion with respect to the holder portion is adopted as the contact relaxation mechanism. The seal is an unused confirmation seal that can confirm the unused state of the blood collection tube holder, and is attached across the cap and the holder portion so as to be cut by removing the cap during use. The blood collection tube holder according to any one of claims 1 to 4 .

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