Blood collection mechanism, blood collection method, and consumable article used in blood collection device

Abstract

A consumable article cassette (12) is provided with an adhesive bandage (23), a release paper (31), a first pressure-sensitive adhesive part (23c), and a second joining part (27). The adhesive bandage (23) has a first surface (23c1) that is joined to the release paper (31) together with the first pressure-sensitive adhesive part (23c), and a second surface (23a1) that is joined to a finger blood collection device via a second pressure-sensitive adhesive part (27). The first surface (23c1) is configured to be capable of being joined to a blood collection site of a subject together with the first pressure-sensitive adhesive part (23c) after the release paper (31) is removed from the first pressure-sensitive adhesive part (23c). The second surface (23a1) is configured to be capable of being removed from the finger blood collection device together with the second pressure-sensitive adhesive part (27) after the adhesive bandage (23) is joined to the blood collection site of the subject.

Description

Blood collection mechanism, blood collection method, and consumables used in blood collection device

[0001] The present invention relates to a blood collection mechanism, a blood collection method, and consumables used in a blood collection device.

[0002] Conventionally, finger blood sampling devices have been developed that automatically sample blood from the subject's fingers. With these finger blood sampling devices, the bleeding must be stopped after puncturing the finger and drawing blood. The bleeding process requires wiping off any blood adhering to the fingertip and then applying a bandage to protect the puncture wound.

[0003] Patent Document 1 describes a means for recovering a body fluid collection sheet from the skin without contaminating it by using a sheet that utilizes an adhesive portion.

[0004] JP 2018-36082 A

[0005] However, the collection work described in Patent Document 1 is performed manually, making the work complicated. For example, automating the process of applying a bandage after blood collection requires a step of first holding the bandage on the device, a step of applying the bandage to the finger, and a final step of retracting the device from the finger while leaving the bandage on the finger. Until now, there have been no attempts to develop a device for automatically applying a bandage to a finger blood collection device.

[0006] The present invention aims to provide a blood collection mechanism, a blood collection method, and consumables for use in a blood collection device that enable automatic application of a bandage to an affected area after blood collection.

[0007] In order to solve the above problems, the present invention provides a blood collection mechanism comprising a finger blood collection device and a consumable item, wherein the consumable item comprises a bandage, a peeling portion, a first connecting portion, and a second connecting portion, and the bandage has a first surface that connects to the peeling portion together with the first connecting portion, and a second surface that connects to the finger blood collection device via the second connecting portion, wherein the first surface is configured to be connectable to a blood collection site on a subject together with the first connecting portion after the peeling portion is detached from the first connecting portion, and the second surface is configured to be detachable from the finger blood collection device together with the second connecting portion after the bandage is attached to the blood collection site on the subject.

[0008] According to the present invention, it is possible to provide a blood collection mechanism, a blood collection method, and consumables for use in a blood collection device that enable automatic application of a bandage to an affected area after blood collection.

[0009] 4A is an external view of a finger blood sampling device according to an embodiment of the present invention. FIG. 4B is a perspective view of a consumable used in a finger blood sampling device according to an embodiment of the present invention. FIG. 4C is a cross-sectional view schematically showing a state before a bandage is attached to a finger. FIG. 4D is a cross-sectional view schematically showing a state after the bandage has been attached to a finger. FIG. 4E is a schematic view showing a state after the device has been retracted from the bandage. FIG. 4F is a perspective view of a consumable used in a finger blood sampling device according to another embodiment. FIG. 4A is a perspective view of the consumable used in a finger blood sampling device according to another embodiment. FIG. 4D is a cross-sectional view schematically showing a state before a bandage is attached to a finger. FIG. 4F is a cross-sectional view schematically showing a state after the bandage has been attached to a finger.

[0010] A finger blood sampling device 1 according to this embodiment of the present invention will now be described. This finger blood sampling device 1 automates the application of a bandage to protect the puncture wound after blood sampling.

[0011] FIG. 1 is an external view of a finger blood sampling device according to an embodiment of the present invention. As an example of a finger blood sampling device, FIG. 1 shows a device that automatically samples blood from the subject's finger. As shown in FIG. 1, the blood sampling mechanism (blood sampling system) according to this embodiment includes a finger blood sampling device 1 and a consumables cassette 12 (consumables). The consumables cassette 12 includes a lancing device 21, a hemostatic material 22, and a bandage 23.

[0012] The finger blood collection device 1 comprises a housing 10, a turntable 11, a puncture device 21 (puncture portion), a hemostatic material 22, a cuff mechanism 13, a rotation drive mechanism (not shown) that rotates the turntable 11, a lifting drive mechanism (not shown) that raises and lowers the puncture device 21, hemostatic material 22, and adhesive bandage 23 of the consumable cassette 12, and a pressure adjustment mechanism (not shown) that drives the cuff mechanism 13.

[0013] The housing 10 is formed from a plurality of structural materials, decorative panels, etc. Inside the housing 10, a turntable 11, a rotation drive mechanism, an elevation drive mechanism, a pressure adjustment mechanism, etc. are built in. On the top surface of the housing 10, there is provided a hand placement area 14 where the hand of the person to be blood-collected is placed, and a circular opening 15 adjacent to the hand placement area 14. The turntable 11 is disposed below the opening 15. The turntable 11 can rotate in both clockwise and counterclockwise directions around the shaft as an axis of rotation by rotation of the shaft by a motor.

[0014] A cuff mechanism 13 and a finger rest area 16 are provided on the opening 15 side of the hand rest area 14. The cuff mechanism 13 is installed above the finger rest area 16 so as to surround the finger 34 of the subject placed in the finger rest area 16.

[0015] The cuff mechanism 13 is a mechanism that clamps the periphery of the subject's finger (the subject's hand) 34. A cuff is placed in the finger holder 16 so as to surround the subject's placed finger 34. The cuff is, for example, in the shape of a flexible bag, and is connected to a valve and a pump via a tube. The valve and pump constitute a pressure adjustment mechanism that drives the cuff mechanism 13. The internal pressure of the cuff is controlled by the pressure adjustment mechanism, thereby adjusting the clamping pressure on the subject's finger 34.

[0016] The turntable 11 is generally disk-shaped and is supported inside the housing 10 with its main surface facing up and down. The turntable 11 is provided with a portion for holding the consumable cassette 12. For example, a holding hole that penetrates the turntable 11 from top to bottom is provided. The consumable cassette 12 is held by being inserted through the holding hole from top to bottom. Note that while FIG. 1 illustrates a state in which one set of consumable cassette 12 is provided, a configuration in which multiple sets of consumable cassettes 12 are held may also be used.

[0017] Finger blood sampling device 1 is provided with a control unit (not shown) that controls the puncturing operation by lancing device 21, the hemostasis operation by hemostatic material 22, and the application operation of adhesive bandage 23. The control unit is configured with a controller such as a PLC (Programmable Logic Controller).

[0018] FIG. 2 is a perspective view of consumables used in a finger blood sampling device according to an embodiment of the present invention. As shown in FIG. 2, the puncture device 21 incorporates a puncture needle (lancet). The hemostatic material 22 is made of gauze or absorbent cotton. The adhesive bandage 23 is a protective material that protects the puncture wound after hemostasis. The puncture device 21, hemostatic material 22, and adhesive bandage 23 are attached to a single holding case 24. This holding case 24 includes a cylindrical body 24a to which the puncture device 21 is attached, a cylindrical body 24b to which the hemostatic material 22 is attached, and a cylindrical body 24c to which the adhesive bandage 23 is attached. The puncture device 21 is supported within the cylindrical body 24a so as to be movable up and down. The hemostatic material 22 is supported within the cylindrical body 24b so as to be movable up and down. The adhesive bandage 23 is supported within the cylindrical body 24c so as to be movable up and down. Although not shown, a through-hole is formed in the underside of the cylindrical body 24c, and a push-up member is inserted through this through-hole to push up the adhesive bandage 23. The cylindrical bodies 24a and 24b also have through-holes (not shown) formed in them so as to have a similar mechanism.

[0019] When the puncture device 21 is pressed against the finger of the blood recipient, the puncture needle is extended and punctures the finger. The hemostatic material 22 is pressed against the puncture site of the blood recipient and absorbs blood that has bled from the puncture site to stop the bleeding. The adhesive bandage 23 is pressed against the puncture site of the blood recipient and attached to cover the puncture site, sealing the puncture site.

[0020] The adhesive bandage 23 is positioned with its adhesive side facing upward to be attached to the finger 34, and the adhesive portion of the bandage 23 is protected by a release paper 31 (see FIG. 3A ). The release paper 31 is not limited to a release paper 31 made of a paper material overlaid with a release material, but may be a release film (release portion) made of a resin film overlaid with a release material. Although not shown in FIG. 2 , the consumable cassette 12 is provided with a protective film (not shown) covering the top surfaces of the puncture device 21, hemostatic material 22, and bandage 23. This is because the puncture device 21, hemostatic material 22, and bandage 23 are medical devices and therefore require the sterilized portions to be sealed and protected. The protective film (not shown) also functions as the release paper for the bandage 23. The release paper for the bandage 23 may be configured separately from the protective film. After the medical staff sets the consumables cassette 12 in the finger blood sampling device 1 (see FIG. 1), they remove the protective film from the consumables cassette 12 .

[0021] Figure 3A is a schematic diagram showing the state before the bandage is applied to the finger, Figure 3B is a schematic diagram showing the state after the bandage has been applied to the finger, and Figure 3C is a schematic diagram showing the state after the device has been removed from the bandage. For ease of explanation, the various components are exaggerated. As shown in Figure 3A, the bandage 23 includes a bandage body 23a, a nonwoven fabric 23b provided on one side of the bandage body 23a, a first adhesive portion 23c (first bonding portion) that serves as the adhesive surface when applied to the finger 34, and a release paper 31. The bandage body 23a is made of a material selected from urethane film, olefin film, and the like. The first adhesive portion 23c is made of an acrylic adhesive, a rubber adhesive, a silicone adhesive, or the like.

[0022] The nonwoven fabric 23b is adhesively fixed to the surface of the adhesive bandage main body 23a facing the first adhesive portion 23c. The adhesive bandage main body 23a is formed with a larger area than the nonwoven fabric 23b. The first adhesive portion 23c is provided on the adhesive bandage main body 23a protruding outward from the nonwoven fabric 23b. The first adhesive portion 23c is also formed on the same surface as the nonwoven fabric 23b. In other words, the first adhesive portion 23c is formed in a frame shape so as to surround the entire periphery of the nonwoven fabric 23b. A release paper 31 is adhered to the surface of the first adhesive portion 23c so as to cover the entire adhesive bandage main body 23a. The first surface 23c1, which is the surface of the first adhesive portion 23c, and the release paper 31 are adhered by a second bonding force F2. The first surface 23c1 is the surface that adheres to the blood collection site (finger 34) after blood collection. The first adhesive portion 23c and the finger 34 are adhered to each other by a first bonding force F1. The first bonding force F1 is configured to be stronger (larger) than the second bonding force F2.

[0023] The cylindrical body 24c (see FIG. 2) of the consumables cassette 12 is provided with a lifting member 26. This lifting member 26 is adhered to the adhesive bandage main body 23a via a second adhesive portion 27. The surface of the adhesive bandage main body 23a that is adhered to the second adhesive portion 27 is the second surface 23a1. The second adhesive portion 27 is formed, for example, from double-sided tape with different adhesive strengths on each surface. The second adhesive portion 27 and the lifting member 26 (device main body, finger blood sampling device 1) are adhered together by a third bonding force F3. The second adhesive portion 27 and the adhesive bandage main body 23a are adhered together by a fourth bonding force F4. The fourth bonding force F4 is configured to be weaker than the third bonding force F3.

[0024] As described above, in this embodiment, the magnitude relationship among the first connecting force F1, the second connecting force F2, the third connecting force F3, and the fourth connecting force F4 is F1 > F3 > F4 > F2. As long as this relationship of connecting forces is maintained, the type of connecting member used for fastening and the fastening method are not limited to those in this embodiment. Furthermore, any combination of fastening methods may also be used. For example, the portions that generate the third connecting force F3 and the fourth connecting force F4 may be configured using hook-and-loop fasteners.

[0025] Next, the operation of automatically attaching adhesive bandage 23 will be described. First, a medical professional sets consumables cassette 12 in finger blood sampling device 1. Then, the protective film (not shown) of consumables cassette 12 is peeled off. At this time, second bonding force F2 generated between release paper 31 and first adhesive portion 23c is configured to be weaker than first bonding force F1, third bonding force F3, and fourth bonding force F4, so only release paper 31 peels off, and the rest remains on the consumables cassette 12 side (the device main body side, the finger blood sampling device 1 side).

[0026] Then, the turntable 11 (see FIG. 1) rotates so that the lancing device 21 of the consumables cassette 12 is positioned under the finger 34, and the puncturing and blood collection operations are performed. Although not shown, after puncturing, a blood collection tube is positioned under the finger 34, and the dripping blood is received in the blood collection tube, and when the required amount has accumulated, the blood collection is completed.

[0027] After the blood sampling operation is completed, the turntable 11 (see FIG. 1) rotates so that the hemostatic material 22 in the consumable cassette 12 is positioned under the finger 34, and the hemostatic material 22 (see FIG. 2) is pushed up by a lifting member (not shown). This causes the hemostatic material 22 to be pressed against the affected area (the blood sampling site), wiping away the blood. However, if blood adheres to the adhesive portion of the bandage 23, the adhesive strength between the finger 34 and the bandage 23 decreases. Therefore, wiping the affected area with the hemostatic material 22 before applying the bandage 23 can prevent the bandage 23 from becoming unable to adhere to the finger 34.

[0028] After the hemostasis operation is completed, the turntable 11 (see FIG. 1) rotates so that the adhesive bandage 23 in the consumable cassette 12 is positioned under the finger 34, and the lifting member 26 is pushed up by a lifting drive mechanism (not shown). As shown in FIG. 3B, when the lifting member 26 is pushed up, the first adhesive portion 23c of the adhesive bandage 23 is pressed against the finger 34, and the adhesive bandage 23 is attached to the finger 34 via the first adhesive portion 23c. The lifting member 26 is also adhered to the adhesive bandage 23 via the second adhesive portion 27.

[0029] As shown in Figure 3C, by pulling (retreating) the lifting member 26 back (toward the device body 1) from the finger 34, the lifting member 26 is released from the bandage 23 with the second adhesive portion 27 remaining on the lifting member 26, and the bandage 23 remains attached to the finger 34. At this time, because the third bonding force F3 is configured to be stronger (larger) than the fourth bonding force F4 (see Figure 3A), the adhesive portion between the bandage 23 (second surface 23a1) and the second adhesive portion 27 peels off before the adhesive portion between the lifting member 26 and the second adhesive portion 27. Furthermore, because the third bonding force F3 is configured to be weaker than the first bonding force F1, the first adhesive portion 23c of the bandage 23 remains on the finger 34. This causes the bandage 23 to be attached to the finger 34, and the automatic attachment operation of the bandage 23 is completed.

[0030] After completing this series of operations, the consumables cassette 12 is removed from the finger blood sampling device 1 and discarded.

[0031] As described above, this embodiment includes adhesive bandage 23, release paper 31 (release portion), first adhesive portion 23c (first connecting portion), and second adhesive portion 27 (second connecting portion). Adhesive bandage 23 has release paper 31, first surface 23c1 that adheres (connects) together with first adhesive portion 23c, and second surface 23a1 that adheres (connects) to lifting member 26 (finger blood sampling device 1) via second adhesive portion 27 (second connecting portion). First surface 23c1 is configured to be able to adhere to the subject's blood sampling site together with first adhesive portion 23c after release paper 31 is removed from first adhesive portion 23c. Second surface 23a1 is configured to be able to be removed from finger blood sampling device 1 together with second adhesive portion 27 after adhesive bandage 23 is connected to the subject's blood sampling site. This makes it possible to automatically apply the adhesive bandage 23 to the blood sampling site of the subject after blood sampling.

[0032] Furthermore, this embodiment is a finger blood sampling method for dressing the blood sampling site of a subject whose blood has been sampled by finger blood sampling device 1, in which adhesive bandage 23 for dressing the blood sampling site of the subject is attached to the blood sampling site via first adhesive portion 23c, and then, when finger blood sampling device 1 is retracted, second adhesive portion 27 that connects adhesive bandage 23 to finger blood sampling device 1 is detached to the side of finger blood sampling device 1. This makes it possible to automatically attach adhesive bandage 23 to the blood sampling site of the subject after blood sampling.

[0033] Furthermore, in this embodiment, the first bonding force F1 generated between the first adhesive portion 23c and the subject's finger 34 (the blood sampling site) is configured to be stronger than the second bonding force F2 generated between the first adhesive portion 23c and the release paper 31 (see FIG. 3A ). As a result, when the release paper 31 is peeled off, everything other than the release paper 31 can remain in the consumable cassette 12 (on the finger blood sampling device 1 side).

[0034] In addition, in this embodiment, the third adhesive force F3 generated between the second adhesive portion 27 and the consumables cassette 12 (on the finger blood sampling device 1 side) is configured to be weaker than the first adhesive force F1 and stronger than the fourth adhesive force F4 generated between the second adhesive portion 27 and the second surface 23a1 of the adhesive bandage 23 (see FIGS. 3A to 3C ). By making the third adhesive force F3 weaker than the first adhesive force F1, the adhesive bandage 23 can be left on the finger 34, and by making the third adhesive force F3 stronger than the fourth adhesive force F4, the second adhesive portion 27 can be left on the consumables cassette 12 (on the finger blood sampling device 1 side).

[0035] In this embodiment, consumable supply cassette 12 includes adhesive bandage 23, hemostatic material 22, and lancing device 21. This reduces the effort required to install and remove from finger blood sampling device 1, improving usability.

[0036] Fig. 4A is a perspective view of a consumable item used in another embodiment of a finger blood collection device. Fig. 4B is a perspective view of the consumable item of Fig. 4A unfolded. Fig. 4C is a cross-sectional view showing the state before a bandage is applied to a finger. Fig. 4D is a cross-sectional view showing the state after the bandage is applied to a finger. Fig. 4E is a perspective view showing the state before the bandage of the consumable item of Fig. 4A is applied to a finger. Fig. 4F is a perspective view showing the state after the bandage of the consumable item of Fig. 4A is applied to a finger. Consumable item 40 shown in Figs. 4A to 4E includes a hemostatic material 41 and a bandage 42. As shown in Figs. 4A and 4B, consumable item 40 has a first plate 43 on which bandage 42 is attached and a second plate 44 foldable relative to first plate 43. First plate 43 is larger than bandage 42 and is rectangular. The second plate portion 44 is formed in a rectangular shape and is longer than the first plate portion 43. The first plate portion 43 and the second plate portion 44 are connected in a bendable manner.

[0037] The consumable item 40 also has a third plate portion 45 to which the hemostatic material 41 is attached, and a fourth plate portion 46 that is foldable around the third plate portion 45. The third plate portion 45 has the same shape as the first plate portion 43. The fourth plate portion 46 has the same shape as the second plate portion 44.

[0038] The consumable 40 also has a connection portion 47 that connects the second plate portion 44 and the fourth plate portion 46. The first plate portion 43 and the second plate portion 44 are spaced apart from the third plate portion 45 and the fourth plate portion 46.

[0039] The first plate portion 43, the second plate portion 44, the third plate portion 45, the fourth plate portion 46 and the connecting portion 47 are all integrally molded into a thin plate shape using the same synthetic resin material such as polypropylene or polystyrene.

[0040] The consumable item 40 also includes a release paper 48 that covers the surfaces of both the adhesive bandage 42 and the hemostatic material 41. The release paper 48 is elongated in the width direction and covers the surfaces of the first plate portion 43 and the third plate portion 45. The release paper 48 also has a tab 48a formed thereon so that the release paper 48 can be easily peeled off. Note that the release paper 48 does not necessarily have to have the tab 48a.

[0041] 4A shows the consumable 40 in a folded state, folded so that the backside of the first plate 43 and the backside of the second plate 44 are in contact. Similarly, the third plate 45 and the fourth plate 46 are folded so that the backside of the third plate 45 and the backside of the fourth plate 46 are in contact. Furthermore, the connecting portion 47 is folded toward the front side of the first plate 43. As a result, the connecting portion 47 is positioned at the bottom, with the second plate 44 and the fourth plate 46 positioned above it. Furthermore, the first plate 43 and the third plate 45 are positioned above them, with the release paper 48 positioned at the top. In this way, the consumable 40 can be laid out in a substantially flat state, allowing multiple consumables 40 to be stored in a compact manner.

[0042] As shown in Fig. 4B , when attaching consumable 40 to the finger blood collection device, with connecting portion 47 fixed from the state shown in Fig. 4A , tab 48a of release paper 48 is grasped and moved toward the viewer in the figure. This causes connecting portion 47, second plate portion 44, and fourth plate portion 46 to rotate about fulcrum P1, and first plate portion 43, third plate portion 45, second plate portion 44, and fourth plate portion 46 to unfold so as to rotate about fulcrum P2, thereby reaching the state shown in Fig. 4B .

[0043] 4C, adhesive bandage 42 has release paper 48 (see FIGS. 4A and 4B), a first surface 42c1 that is joined together with first adhesive portion 42c (first joining portion), and a second surface 42a1 that is joined to the finger blood collection device via second adhesive portion 49 (second joining portion). Adhesive bandage 42 also has adhesive bandage body 42a and nonwoven fabric 42b provided on one side of adhesive bandage body 42a.

[0044] The nonwoven fabric 42b is provided on the surface of the adhesive bandage body 42a facing the first adhesive portion 42c. A release paper 48 is provided on the surface of the first adhesive portion 42c so as to cover the entire adhesive bandage body 42a. The release paper 48 adheres to the first surface 42c1, which is the surface of the first adhesive portion 42c, by a second bonding force F2.

[0045] The adhesive bandage body 42a is adhered to the first plate 43 via the second adhesive portion 49. A hole 43a is formed in the first plate 43 so that a portion of the second adhesive portion 49 is exposed. A push rod 50 (pressing portion) is provided below the first plate 43, which moves up and down when the adhesive bandage 42 is applied to the blood collection site. The push rod 50 is configured to move up and down by an elevation drive mechanism (not shown). The push rod 50 and the first plate 43 are on the finger blood collection device side (device body side). The hole 43a in the first plate 43 is sized to allow the upper surface 50a of the push rod 50 to come into contact with the second adhesive portion 49.

[0046] As shown in Fig. 4D, the first bonding force F1 generated between the first adhesive portion 42c and the blood collection site is configured to be stronger than the second bonding force F2 (see Fig. 4C) generated between the first adhesive portion 42c and the release paper 48. The third bonding force F3 generated between the second adhesive portion 49 and the push rod 50 (finger blood collection device 1) is configured to be weaker than the first bonding force F1 and stronger than the fourth bonding force F4 generated between the second adhesive portion 49 and the second surface 42a1. In other words, the force relationship is set to be F1 > F3 > F4 > F2.

[0047] Next, the automatic application of adhesive bandage 42 to a finger blood sampling device with consumable item 40 attached will be described. First, consumable item 40 is attached to the finger blood sampling device in the unfolded state shown in FIG. 4B . Details of the finger blood sampling device to which consumable item 40 is attached are not shown. Next, gripping portion 48a is pinched to peel release paper 48 from adhesive bandage 42 and hemostatic material 141. Then, as shown in FIG. 4E , the underside of second plate portion 44, on which adhesive bandage 42 is attached, is pressed upward by push rod 50. This causes second plate portion 44 to bend and deform while being pushed up, and first plate portion 43 is also pushed up. Note that connecting portion 47 is fixed to the finger blood sampling device (device body), and the height position of connecting portion 47 does not change. As the push rod 50 is further pushed up, the position of the second plate 44 against which the upper surface 50a of the push rod 50 abuts shifts toward the first plate 43, and finally, as shown in Figure 4F, the upper surface 50a of the push rod 50 is positioned on the underside of the first plate 43. At this time, the upper surface 50a of the push rod 50 passes through the hole 43a and adheres to the second adhesive portion 49. The first adhesive portion 42c of the adhesive bandage 42 is then pressed against the blood collection site, and the adhesive bandage 42 adheres to the blood collection site.

[0048] Then, by lowering (retracting) the push rod 50, the first plate 43 is pulled back (retracted). At this time, the first plate 43 and the second adhesive portion 49 are pulled downward by the adhesive force (third bonding force F3) between the push rod 50 and the second adhesive portion 49. Furthermore, because the third bonding force F3 is set to be weaker than the first bonding force F1, when the push rod 50 pulls the first plate 43 and the second adhesive portion 49, the adhesive bandage 42 remains on the finger side (the blood collection site side). Furthermore, because the third bonding force F3 is stronger than the fourth bonding force F4, when the push rod 50 pulls the first plate 43 and the second adhesive portion 49, the adhesive bandage main body 42a and the second adhesive portion 49 are peeled apart, and the second adhesive portion 49 remains on the finger blood collection device side (the device main body side) together with the first plate 43 and the push rod 50.

[0049] Similarly to the action of applying the adhesive bandage 42, the hemostatic material 41 of the consumables 40 can also be used by pushing up the hemostatic material 41 with the push rod, thereby wiping away blood leaking from the blood collection site with the hemostatic material 41. In the case of the hemostatic material 41, it is not necessary to apply the hemostatic material 41 to the blood collection site, and therefore it is sufficient to simply apply the hemostatic material 41 to the blood collection site with the push rod 50.

[0050] As described above, another embodiment of the finger blood sampling device includes adhesive bandage 42, release paper 48, first adhesive portion 42c, and second adhesive portion 49. Adhesive bandage 42 has release paper 48, a first surface 42c1 that is coupled together with first adhesive portion 42c, and a second surface 42a1 that is coupled to the finger blood sampling device via second adhesive portion 49. First surface 42c1 is configured to be coupled to the subject's blood sampling site together with first adhesive portion 42c after release paper 48 is removed from first adhesive portion 42c. Second surface 42a1 is configured to be detachable from the finger blood sampling device together with second adhesive portion 49 after adhesive bandage 42 is coupled to the subject's blood sampling site. This allows for automatic application of adhesive bandage 42 to the subject's blood sampling site after blood sampling.

[0051] Another embodiment of the finger blood collection device is constructed of a flexible member, and has a first plate 43 to which adhesive bandage 42 is attached, and a second plate 44 that is foldable around first plate 43. When first plate 43 and second plate 44 are unfolded, the underside of second plate 44 is pressed, causing it to rise while undergoing flexible deformation, and when pressed further, the underside of first plate 43 is pressed. This allows consumables 40 to be stored compactly, improving handleability.

[0052] In another embodiment, the consumable item 40 is described as being a combination of a hemostatic material 41 and a bandage 42, but the consumable item may be provided with only the bandage 42.

[0053] Fig. 5A is a schematic diagram showing a consumable attached to a finger blood sampling device of yet another embodiment, Fig. 5B is a cross-sectional view showing a state before a bandage is applied to a finger, and Fig. 5C is a cross-sectional view showing a state after the bandage is applied to a finger. As shown in Fig. 5A, a finger blood sampling device equipped with consumable 60 includes roll paper 62 on which a plurality of bandages 61 are provided, roll paper take-up roller 63 that takes up the roll paper after bandages 61 are peeled off, and release paper take-up roller 65 (peeling section take-up roller) that peels off release paper 64. Motors are connected to the rotation shafts of roll paper take-up roller 63 and release paper take-up roller 65, and are controlled to be step-driven by a control unit (not shown).

[0054] The roll paper 62 has a plurality of adhesive bandages 61 arranged at equal intervals on a strip-shaped base material 62a. In addition, release paper 64 is layered on the base material 62a to protect the adhesive portion of the adhesive bandages 61. The roll paper 62 is constructed by being wound up with this release paper 64 attached. A roll paper take-up roller 63 is located at the end of the roll paper 62, with an intermediate roller 66 sandwiched between them. In addition, a release paper take-up roller 65 is located on the side closest to where the adhesive bandage 61 is applied to the finger 34, with an intermediate roller 67 sandwiched between them.

[0055] A push rod 50 (pressing portion) is provided below the adhesive bandage 61 after the release paper 64 has been peeled off. The push rod 50 is controlled by a lifting drive mechanism (not shown) so as to move up and down.

[0056] 5B, adhesive bandage 61 has release paper 64, a first surface 61c1 that is bonded together with first adhesive portion 61c, and a second surface 61a1 that is bonded to the finger blood collection device via second adhesive portion 68. Adhesive bandage 61 also has adhesive bandage body 61a and nonwoven fabric 61b provided on one side of adhesive bandage body 61a.

[0057] The nonwoven fabric 61b is adhered to the surface of the adhesive bandage body 61a on the side of the first adhesive portion 61c. A release paper 64 is superimposed on the surface (first surface 61c1) of the first adhesive portion 61c so as to cover the entire adhesive bandage body 61a. The first surface 61c1, which is the surface of the first adhesive portion 61c, and the release paper 64 are adhered to each other by a second bonding force F2.

[0058] The adhesive bandage body 61a is adhered to the base material 62a via the second adhesive portion 68. A hole 62b is formed in the base material 62a so that a portion of the second adhesive portion 68 is exposed. A push rod 50 (pressing portion) that moves up and down when the adhesive bandage 61 is applied to the blood collection site is provided below the base material 62a. The push rod 50 is configured to move up and down by an elevation drive mechanism (not shown). The push rod 50 and base material 62a are on the finger blood collection device side (device body side). The hole 62b in the base material 62a is formed to be large enough to allow the upper surface 50a of the push rod 50 to come into contact with the second adhesive portion 68.

[0059] As shown in Fig. 5C, the first bonding force F1 generated between the first adhesive portion 61c and the blood collection site is configured to be stronger than the second bonding force F2 (see Fig. 5B) generated between the first adhesive portion 61c and the release paper 64. The third bonding force F3 generated between the second adhesive portion 68 and the push rod 50 (finger blood collection device 1) is configured to be weaker than the first bonding force F1 and stronger than the fourth bonding force F4 generated between the second adhesive portion 68 and the second surface 61a1. In other words, the force relationship is set to be F1 > F3 > F4 > F2.

[0060] Next, the automatic application of adhesive bandage 61 by the finger blood collection device equipped with consumable item 60 will be described with reference to FIG. 5A . First, roll paper 62 is set in a predetermined position, and the leading end of roll paper 62 is secured to roll paper take-up roller 63, enabling roll paper 62 to be wound up. Furthermore, the leading end of release paper 64 is secured to release paper take-up roller 65, enabling release paper 64 to be wound up. Before roll paper 62 reaches the application position for adhesive bandage 61, release paper 64 is peeled off from adhesive bandage 61 and then moved to the application position. Then, push rod 50 rises, and upper surface 50 a of push rod 50 passes through hole 62 b, adhering upper surface 50 a to second adhesive portion 68. Then, first adhesive portion 61 c of adhesive bandage 61 is pressed against the blood collection site, and adhesive bandage 61 is applied to the blood collection site.

[0061] Then, by lowering (retreating) the push rod 50, the base material 62a is pulled back (retracted). At this time, the adhesive force (third bonding force F3) between the push rod 50 and the second adhesive portion 68 pulls the second adhesive portion 68 back together with the base material 62a. Furthermore, because the third bonding force F3 is set to be weaker than the first bonding force F1, when the second adhesive portion 68 is pulled back by the push rod 50, the adhesive bandage 61 remains on the finger side (the blood collection site side). Furthermore, because the third bonding force F3 is stronger than the fourth bonding force F4, when the second adhesive portion 68 is pulled back by the push rod 50, the adhesive bandage main body 61a and the second adhesive portion 68 peel away from each other, and the second adhesive portion 68 remains on the finger blood collection device side (the device main body side) together with the base material 62a and the push rod 50.

[0062] The further embodiment described above includes adhesive bandage 61, release paper 64, first adhesive portion 61c, and second adhesive portion 68. Adhesive bandage 61 has a first surface 61c1 that is coupled to release paper 64 and first adhesive portion 61c, and a second surface 61a1 that is coupled to the finger blood sampling device via second adhesive portion 68. First surface 61c1 is configured to be coupled to the subject's blood sampling site together with first adhesive portion 61c after release paper 64 is removed from first adhesive portion 61c. Second surface 61a1 is configured to be detachable from the finger blood sampling device together with second adhesive portion 68 after adhesive bandage 61 is coupled to the subject's blood sampling site. This allows adhesive bandage 61 to be automatically attached to the subject's blood sampling site after blood is sampled.

[0063] Yet another embodiment includes a roll of paper 62 on which a plurality of adhesive bandages 61 are provided, a roll of paper take-up roller 63 that takes up the roll of paper 62, and a release paper take-up roller 65 that peels off the release paper 64. After the release paper 64 has been peeled off, the adhesive bandage 61 is pressed from the underside of the roll of paper 62. This eliminates the need to replace the adhesive bandage 61 each time blood is collected.

[0064] Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the present invention. For example, the present invention is not necessarily limited to those having all of the configurations of the above-described embodiments. It is possible to replace part of the configuration of an embodiment with another configuration, add part of the configuration of an embodiment to another form, or omit part of the configuration of an embodiment.

[0065] REFERENCE SIGNS LIST 1 Finger blood sampling device 12 Consumable cassette (consumable) 21 Lancing device (puncturing part) 22 Hemostatic material 23, 42, 61 Bandage 23a, 42a, 61a Bandage body 23a1, 42a1, 61a1 Second surface 23b, 42b, 61b Nonwoven fabric 23c, 42c, 61c First adhesive part (first connecting part) 23c1, 42c1, 61c1 First surface 26 Lifting member 27, 49, 68 Second adhesive part (second connecting part) 31, 48, 64 Release paper (release part) 34 Finger (blood sampling site) 40, 60 Consumable 43 First plate part 44 Second plate part 50 Push rod 63 Roll paper winding roller 65 Release paper winding roller F1 First bonding force (first bonding force generated between the first bonding part and the blood sampling site of the subject) F2 Second bonding force (second bonding force generated between the first bonding part and the peeling part) F3 Third bonding force (third bonding force generated between the second bonding part and the finger blood sampling device) F4 Fourth bonding force (fourth bonding force generated between the second bonding part and the second surface of the adhesive bandage)

Claims

1. A blood collection mechanism comprising a finger blood collection device and a consumable item, wherein the consumable item comprises a bandage, a peeling part, a first connecting part, and a second connecting part, wherein the bandage has a first surface that connects to the peeling part together with the first connecting part, and a second surface that connects to the finger blood collection device via the second connecting part, wherein the first surface is configured to be connectable to a blood collection site on a subject together with the first connecting part after the peeling part is detached from the first connecting part, and the second surface is configured to be detachable from the finger blood collection device together with the second connecting part after the bandage is attached to the blood collection site on the subject.

2. A blood collection mechanism as described in claim 1, characterized in that the first bonding force generated between the first bonding portion and the blood collection site of the subject is configured to be stronger than the second bonding force generated between the first bonding portion and the peeling portion.

3. A blood collection mechanism as described in claim 2, characterized in that the third bonding force generated between the second bonding portion and the finger blood collection device is configured to be weaker than the first bonding force and stronger than the fourth bonding force generated between the second bonding portion and the second surface of the adhesive bandage.

4. A blood collection mechanism according to claim 1, characterized in that the consumables include a hemostatic material and a puncture part in addition to the adhesive bandage.

5. A blood collection mechanism as described in claim 1, which is made up of a flexible and deformable member and has a first plate portion to which the adhesive bandage is attached and a second plate portion that is foldable around the first plate portion, and when the first plate portion and the second plate portion are unfolded, the underside of the second plate portion is pushed up, causing it to rise while undergoing flexible deformation, and when it is further pushed up, the underside of the first plate portion is pressed.

6. A blood collection mechanism as described in claim 1, comprising: a roll of paper on which a plurality of adhesive bandages are provided; a roll of paper winding roller that winds up the roll of paper; and a peeling portion winding roller that peels off the peeling portion, wherein the adhesive bandage is pressed from the underside of the roll of paper after the peeling portion has been peeled off.

7. A blood collection method for treating the blood collection site of a subject whose blood has been collected by a finger blood collection device, characterized in that after a peel-off portion is removed from a first connecting portion of a bandage, the bandage is connected to the blood collection site via the first connecting portion and the bandage is connected to the finger blood collection device via the second connecting portion, and then, when the finger blood collection device is retracted from the bandage, the first connecting portion is left on the bandage and the second connecting portion is removed to the finger blood collection device.

8. A consumable item used in a finger blood collection device for treating the blood collection site of a subject after blood has been collected, comprising a peel-off portion, a bandage, a first connecting portion, and a second connecting portion, wherein the bandage has a first surface that connects to the peel-off portion together with the first connecting portion, and a second surface that connects to the finger blood collection device via the second connecting portion, wherein the first surface is configured to be connectable to the blood collection site of the subject together with the first connecting portion after the peel-off portion is detached from the first connecting portion, and the second surface is configured to be removable from the finger blood collection device together with the second connecting portion after the bandage has been adhered to the blood collection site of the subject.

Images