Lancet assembly for infants

Abstract

In one embodiment of the present disclosure, provided is a lancet assembly for infants, comprising a housing, and a lancet, a movable body, and a compression coil spring capable of biasing the movable body in a predetermined first direction, which are housed in the housing, the housing is configured to have a housing first portion having a long side extending in the first direction and a housing second portion having a long side extending from the housing first portion side in a second direction perpendicular to the first direction, and the lancet is configured to have a lancet main body and a blade attached to the lancet main body. The lancet main body is configured to have a main body first portion provided so as to be movable together with the movable body, and a main body second portion capable of engaging with the housing second portion in the first direction in a concavo-convex manner. The movable body is configured so as to have a movable body first portion that is movable in the first direction and that is capable of engaging with the housing first portion in a concave-convex manner in the second direction, and a movable body second portion on which the main body first portion is provided so as to be axially rotatable.

Description

Technical Field

[0001] The present disclosure relates to a lancet assembly for infants. Background Art

[0002] The lancet assembly for infants is used to collect a small amount of blood sample from an infant. The blood sample can be collected mainly by cutting the heel of the infant. Since it is used to cut the heel of the infant, the lancet assembly for infants can be called a heel stick (Japanese original: ヒールスティック).

[0003] Patent Document 1: Japanese Patent Application Publication No. 2011-529376

[0004] Here, the inventors of the present application recognize that the lancet assembly for infants has a relatively complex structure so far, and it is difficult to assemble the components. The difficulty of assembling the components may lead to a reduction in the production efficiency of the lancet assembly for infants. Therefore, it is desirable to provide a lancet assembly for infants with a simple structure. Summary of the invention

[0005] In view of this point, an object of the present disclosure is to provide a lancet assembly for infants having a simple structure.

[0006] In order to solve the above-mentioned problems, in one embodiment of the present disclosure, a lancet assembly for infants is provided.

[0007] The invention comprises a housing, a lancet respectively accommodated in the housing, a movable body, and a compression coil spring capable of applying force to the movable body in a predetermined first direction.

[0008] The housing is configured to include: a first housing portion, a long side of which extends along the first direction; and a second housing portion, a long side of which extends from the first housing portion side along a second direction perpendicular to the first direction.

[0009] The lancet is configured to include: a lancet body; and a blade mounted on the lancet body.

[0010] The lancet body is configured to include: a first body portion, which is configured to be movable together with the movable body; and a second body portion, which can be engaged with the second housing portion in the first direction.

[0011] The movable body is configured to include: a movable body first portion that can move along the first direction and can be engaged with the housing first portion in the second direction; and a movable body second portion that allows the main body first portion to be axially rotatable.

[0012] According to the present disclosure, it is possible to provide a lancet assembly for infants having a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a perspective view schematically showing a lancet assembly for infants according to an embodiment of the present disclosure in a state before use.

[0014] Figure 2 This is a partially exploded perspective view schematically showing a lancet assembly for infants according to an embodiment of the present disclosure in a state before use.

[0015] Figure 3 It is a perspective view schematically showing a first sub-case of a case which is a component of the lancet assembly for infants according to one embodiment of the present disclosure.

[0016] Figure 4 It is a perspective view schematically showing a second sub-case of a case which is a component of the lancet assembly for infants according to one embodiment of the present disclosure.

[0017] Figure 5 This is a perspective view schematically showing a lancet which is a component of the lancet assembly for infants according to one embodiment of the present disclosure.

[0018] Figure 6 is a schematic representation of Figure 5 A stereoscopic view of the lancet when viewed from the opposite side.

[0019] Figure 7 This is a perspective view schematically showing a movable body which is a component of the infant lancet assembly according to one embodiment of the present disclosure.

[0020] Figure 8 is a schematic representation of Figure 7 A perspective view of the movable body when viewed from a different side.

[0021] Fig. 9 Schematically showing a partial anatomical view of a lancet assembly for infants according to an embodiment of the present disclosure before use (equivalent to Figure 2 central image).

[0022] Fig.10 This is a partial anatomical view schematically showing a state of the lancet assembly for infants according to one embodiment of the present disclosure at the start of use (when the trigger is pressed).

[0023] Fig.11FIG. 1 is a partial anatomical view schematically showing a lancet assembly for infants according to an embodiment of the present disclosure in a state of being in use.

[0024] Fig.12 This is a partial anatomical view schematically showing a lancet assembly for infants according to one embodiment of the present disclosure in a state where use is completed. DETAILED DESCRIPTION

[0025] The inventors of the present application have intensively studied a lancet assembly for infants having a simple structure, and as a result, provide a lancet assembly for infants according to one embodiment of the present disclosure.

[0026] From the viewpoint of providing a lancet assembly for infants with a simple structure, the present disclosure is based on the following idea: the movement of the lancet is controlled by using a combination of a shell with a characteristic structure, a compression coil spring that can be extended in one direction and is respectively accommodated in the shell, a movable body that can be moved in one direction due to the force of the compression coil spring, and a lancet connected to the movable body at a specified position.

[0027] Structure of the lancet assembly

[0028] Hereinafter, the main structure of the lancet assembly 1000 according to one embodiment of the present disclosure based on the above-mentioned technical concept will be described using the drawings of the pre-operation state.

[0029] Figure 1 This is a perspective view schematically showing a lancet assembly for infants according to an embodiment of the present disclosure in a state before use. Figure 2 This is a partially exploded perspective view schematically showing a lancet assembly for infants according to an embodiment of the present disclosure in a state before use.

[0030] The lancet assembly 1000 according to one embodiment of the present disclosure is configured to include a housing 100, a housing cover 200, and a lancet 300 respectively accommodated in the housing 100, a movable body 400, a compression coil spring 500 capable of applying force to the movable body 400, a trigger 600, and a stopper 700 for limiting the movement of the trigger 600 before use as main components (see Figure 1 and Figure 2 ). The "compression coil spring" referred to in this disclosure refers to a spring that is compressed before use, and when the compressed state is released and stretched, the stretched state is maintained. That is, in this disclosure, for the "compression coil spring", a structure that returns from the stretched state to the compressed state is not envisioned. In addition, in this specification, the components formed by integrating the housing 100 and the housing cover 200 covering the housing 100 are collectively referred to as a housing complex.

[0031] Hereinafter, among the above-mentioned components, the housing 100 , the lancet 300 , and the movable body 400 will be described in detail.

[0032] (Housing 100)

[0033] Figure 3 It is a perspective view schematically showing a first sub-case of a case which is a component of the lancet assembly for infants according to one embodiment of the present disclosure. Figure 4 It is a perspective view schematically showing a second sub-case of a case which is a component of the lancet assembly for infants according to one embodiment of the present disclosure.

[0034] The housing 100 may be composed of, for example, a first sub-housing 100A and a second sub-housing 100B that can be connected to each other (see Figure 3 and Figure 4 As an example, the two sub-shells can be connected to each other by making the main surface side of the first sub-shell 100A and the main surface side of the second sub-shell 100B face each other, and making the convex part arranged locally on the inner surface of one sub-shell fit into the concave part arranged locally on the inner surface of the other sub-shell. A single shell 100 can be composed of the two sub-shells. When the two sub-shells are connected to each other, the shell 100 can form an opening portion 170 (refer to Figure 1 ).exist Figure 3 and Figure 4 In the illustrated embodiment, the interiors of both sub-shells can be concave-convex, but the invention is not limited thereto, and the interior of one sub-shell can have a concave-convex shape, while the interior of the other sub-shell can have a flat shape.

[0035] The following description will focus on the structure in the first sub-housing 100A of the housing 100. Figure 3 As shown, the housing 100 (the first sub-housing 100A) is constructed to have: at least one housing first part 110, 120 whose long side extends along a first direction (equivalent to the lateral direction); and a housing second part 140 whose long side extends from the side of the housing first part along a second direction (equivalent to the longitudinal direction) perpendicular to the first direction. In addition, the second sub-housing 100B can also be constructed to have: a housing first part whose long side extends along the first direction (equivalent to the lateral direction); and a housing second part whose long side extends along the second direction (equivalent to the longitudinal direction). When the two sub-housings are connected to each other, at least the housing first parts and the housing second parts in the two sub-housings 100A, 100B can be in a configuration relationship that allows them to be opposite to each other.

[0036] The first housing parts 110 and 120 can be engaged with the first movable body part described later in a concave-convex manner in the second direction (equivalent to the longitudinal direction). That is, under the premise that the long sides of the first housing parts 110 and 120 extend along the first direction, the short sides of the first housing parts 110 and 120 can be engaged with the first movable body part in a concave-convex manner as a whole in the second direction (equivalent to the longitudinal direction). In addition, the first housing parts 110 and 120 can be engaged with the first movable body part described later in a concave-convex manner in the second direction (equivalent to the longitudinal direction).

[0037] The "convex-concave engagement" mentioned in this specification refers to a state in which one part (equivalent to the first part of the shell, etc.) has a concave shape and the other part (equivalent to the first part of the movable body, etc.) has a convex shape, and the two can be engaged by their shapes, or a state in which one part (equivalent to the first part of the shell, etc.) has a convex shape and the other part (equivalent to the first part of the movable body, etc.) has a concave shape and the two can be engaged by their shapes. When taking the first part of the shell and the first part of the movable body as an example, it means that due to the shapes of the two, the first part of the shell and the first part of the movable body can be engaged with each other so that the first part of the movable body can move relatively in the first direction (equivalent to the horizontal direction) but not in the second direction (equivalent to the longitudinal direction). In addition, in this embodiment, the two first parts of the shell 110 and 120 are separated from each other for explanation, but as long as they can be mutually engaged with the first part of the movable body described later, it is not limited to this, and more than one first part of the shell can be provided.

[0038] Specifically, between the first housing parts 110, 120 and the first movable body part, the convex part on one side can abut against the inner surface of the concave part on the other side. As a result, since the movement of the first movable body part in the second direction is restricted, the movement of the movable body in the first direction (equivalent to the lateral direction) can be easily controlled as a whole.

[0039] In the illustrated embodiment, two housing first parts 110 and 120 are provided, which are arranged to be separated from each other. In this case, for example, one end 111 (corresponding to the side surface of the housing) of the housing first part 110 located at the uppermost position can contact one side 510 of the compression coil spring 500. The other side 520 of the compression coil spring 500 can be connected to the movable body 400 described later, specifically, to the protruding portion 440 of the movable body 400.

[0040] In addition, if the first part of the shell can control the movement of the movable body in the first direction (equivalent to the lateral direction), the number of the first part of the shell can also be at least one. In addition, from the perspective of more appropriately controlling the movement of the movable body in the first direction (equivalent to the lateral direction), the number can be more than two.

[0041] In addition, from the perspective of achieving improved movement control of the movable body, the width dimension of the first part 110, 120 of the shell in the second direction (equivalent to the longitudinal direction) is preferably a dimension that allows the first part of the movable body to slide relative to the first part 110, 120 of the shell in the first direction (equivalent to the lateral direction).

[0042] The long side of the second housing portion 140 is configured to have a first end 141 on the proximal side relative to the first housing portions 110 and 120, and a second end 142 on the distal side relative to the first housing portion. In addition, the second housing portion 140 can be engaged with a second main body portion of a lancet main body as a component of the lancet described later in a first direction (equivalent to a lateral direction) by means of a concave-convex engagement.

[0043] That is, under the premise that the long side of the second part of the shell 140 extends in the second direction, in the first direction (equivalent to the horizontal direction), the short side of the second part of the shell 140 as a whole can be engaged with the second part of the main body of the lancet body in a concave-convex manner. Specifically, between the second part of the shell 140 and the second part of the main body, the convex part of one side can abut against the inner surface of the concave part of the other side. As a result, the movement of the second part of the main body in the first direction is restricted, so the movement of the second part of the main body in the second direction can be easily controlled as a whole.

[0044] Furthermore, from the viewpoint of achieving improved movement control of the second body portion, the width dimension of the second housing portion 140 in the first direction is preferably a dimension that allows the second body portion to slide in the second direction relative to the second housing portion 140. As a result, the movement control of the second body portion is improved, so that as described later, when the blade of the lancet 300 protrudes to the outside as the second body portion moves in the second direction during use, the movement of the blade can be stabilized.

[0045] In one embodiment of the present invention, the first shell parts 110 and 120 extend in a first direction (equivalent to the horizontal direction), and the second shell part 140 extends from the first shell part side in a second direction (equivalent to the longitudinal direction). By adopting this extension form, the first shell parts 110 and 120 and the second shell part 140 are configured in a T-shape as a whole. In addition, the "T-shaped configuration of the first shell part and the second shell part" mentioned in this specification includes not only a configuration in which the first shell part and the second shell part are in physical contact, but also a configuration in which the two are separated by a specified interval and are generally T-shaped as a whole.

[0046] The housing 100 (the first sub-housing 100A) may be configured to include: a third housing portion 130 that can be concavely engaged with a first main body portion 311 of a lancet described later in the second direction; and a fourth housing portion 150 that can accommodate a trigger 600. The third housing portion 130 and the fourth housing portion 150 may be configured to extend in substantially the same direction as the first housing portion at a predetermined interval. In addition, the housing 100 may be configured to include a locking portion 160 that can lock a flexible portion 450 of a movable body 400 described later.

[0047] When the third housing portion 130 is provided, the movement of the first body portion 311 of the lancet in the second direction can be restricted because the third housing portion 130 can be engaged with the first body portion 311 of the lancet. Thus, the movement of the first body portion 311 of the lancet in the first direction (equivalent to the lateral direction) can be easily controlled as a whole.

[0048] In addition, in the illustrated embodiment, the first shell part 110, the second shell part 140, and the third shell part 130 can be in a concave shape. In this case, the object side (movable body, lancet) capable of concave-convex engagement described later can partially have a convex shape. In addition, it is not limited to this, and the first shell part to the third shell part can also be in a convex shape. In this case, the object side (movable body, lancet) capable of concave-convex engagement can partially have a concave shape.

[0049] (Lancet 300)

[0050] Figure 5 This is a perspective view schematically showing a lancet which is a component of the lancet assembly for infants according to one embodiment of the present disclosure. Figure 6 is a schematic representation of Figure 5 A stereoscopic view of the lancet when viewed from the opposite side.

[0051] The lancet 300 includes a lancet body 310 and a blade 320 attached to the lancet body 310. The lancet body 310 includes a first body portion 311 disposed at one end of a long side and a second body portion 312 disposed at the other end.

[0052] The first main body portion 311 can move integrally with the movable body 400 and is connected to the movable body 400 in a manner that allows axial rotation. In one embodiment, the position of the first main body portion 311 that allows axial rotation relative to the connection portion of the movable body 400 can be maintained. The first main body portion 311 can be engaged with the third housing portion 130 in the second direction. As a result, the movement of the first main body portion 311 of the lancet in the second direction can be appropriately restricted, so that the movement of the first main body portion 311 in the first direction can be easily controlled.

[0053] In addition, the second body part 312 can be engaged with the second housing part 140 in the first direction. Thus, the movement of the second body part in the first direction is restricted, so the movement of the second body part in the second direction can be easily controlled.

[0054] Before the movable body 400 starts to move in the first direction, the second body portion 312 is configured to be able to slide between the first end 141 and the second end 142 of the housing second portion 140. That is, the second body portion 312 of the lancet body 310 can be directly disposed on the housing 100 itself. At this time, the blade 320 is configured to be accommodated in the housing 100.

[0055] In addition, after the movable body 400 starts to move in the first direction, in the middle of the movement, the main body second portion 312 can be located on the second end 142 side of the housing second portion 140 of the housing 100, and at this time, the blade 320 can protrude to the outside through the opening portion of the housing 100. In addition, from the viewpoint of maintaining the degree of protrusion of the blade 320 to the outside constant, the main body second portion 312 contacts the second end 142 of the housing second portion 140, and the movement of the main body second portion 312 to the further side than the second end 142 can be restricted.

[0056] As described above, when the housing 100 is configured to include the first sub-housing 100A and the second sub-housing 100B, the first main body portion 311 is preferably disposed in the same row or on the same axis on two opposing main surfaces of the lancet body 310 .

[0057] According to this configuration, two concave-convex engagement points between the first main body part 311 and the third shell part 130 can be ensured in the second direction. As a result, the movement of the first main body part 311 of the lancet in the second direction can be more appropriately restricted. As a result, the movement of the first main body part 311 of the lancet in the first direction (equivalent to the lateral direction) can be more appropriately controlled as a whole.

[0058] Similarly, when the housing 100 is configured to include the sub-housing 100A and the second sub-housing 100B, the second main body portion 312 is preferably disposed on two opposing main surfaces of the lancet body 310 in the same row or on the same axis.

[0059] According to this configuration, two concave-convex engagement points between the second body part 312 and the second shell part 140 can be ensured in the first direction. As a result, the movement of the second body part 312 of the lancet in the first direction can be more appropriately restricted. As a result, the movement of the second body part 312 of the lancet in the second direction (equivalent to the longitudinal direction) can be easily and more appropriately controlled as a whole.

[0060] (Movable body 400)

[0061] Figure 7 This is a perspective view schematically showing a movable body which is a component of the infant lancet assembly according to one embodiment of the present disclosure. Figure 8 is a schematic representation of Figure 7 A perspective view of the movable body when viewed from a different side.

[0062] The movable body 400 is configured to be biased in a first direction (corresponding to the lateral direction) by the compression coil spring 500. The movable body 400 is configured to have a protruding portion 440 that can be connected to the compression coil spring 500. As long as the compression coil spring 500 can bias the movable body 400, the protruding portion 440 can be arranged at any position of the movable body 400.

[0063] In addition, the movable body 400 is configured to include: at least one movable body first portion 410, which can be engaged with the first portion of the housing in a concave-convex manner; a movable body second portion 430, on which the first body portion 311 of the lancet 300 can be arranged in a manner that allows axial rotation; and a flexible portion 450, which can be engaged with a predetermined portion (corresponding to the engaging portion 160) of the housing 100 before use. The flexible portion 450 is, for example, continuous with the movable body first portion 410 on one side, and free on the other side to provide flexibility.

[0064] In addition, the flexible portion 450 is arranged at a position where it can abut against the trigger 600 when in use. Specifically, at the beginning of use, the stopper 700 that restricts the movement of the trigger 600 is removed, so that the trigger 600 can be manually pressed and moved. Therefore, when abutting against the trigger 600, the flexible portion 450 can bend in a direction that can release the locking with the predetermined portion of the housing 100 (corresponding to the locking portion 160) according to its nature. As a result, the locking of both can be released.

[0065] In addition, as described above, in the case where two housing first portions 110 and 120 are disposed separately from each other, in the illustrated embodiment, two movable body first portions 410 and 420 (see FIG. Figure 7 and Figure 8 ). In this case, a movable body third portion 460 (equivalent to a middle portion or a first direction extending portion) that can slide with the housing 100 and extend in the first direction may be provided between the two movable body first portions 410 and 420. In addition, when viewed in cross section, the movable body second portion 430 may be arranged in a direction perpendicular to the direction in which the long sides of the movable body first portions 410 and 420 extend, for example.

[0066] Action of the lancet assembly

[0067] The operation of the lancet assembly 1000 according to one embodiment of the present disclosure based on the above-described structure will be described.

[0068] (Before use)

[0069] Fig. 9 Schematically showing a partial anatomical view of a lancet assembly for infants according to an embodiment of the present disclosure before use (equivalent to Figure 2 central image).

[0070] Before use begins, the movement of the trigger 600 is restricted by the stopper 700. Therefore, the flexible portion 450 of the movable body 400 is in a state of being locked to the locking portion 160 of the housing 100. In this state, on one side ( Fig. 9 The movable body 400 connected to the compressed coil spring 500 (the right side end in the inner part) maintains a stationary state. In this stationary state, the second body portion of the lancet body 310 as a component of the lancet 300 is located between the first end 141 and the second end 142 of the second housing portion 140, and the blade 320 is accommodated in the housing 100.

[0071] (When starting to use)

[0072] Fig.10 This is a partial anatomical view schematically showing a state of the lancet assembly for infants according to one embodiment of the present disclosure at the start of use (when the trigger is pressed).

[0073] At the beginning of use, the stopper is removed so that the trigger 600 can be pressed into the housing 100 (see Fig.10Then, when the trigger 600 is pressed by the user, the trigger 600 abuts against the flexible portion 450 of the movable body 400, and during the abutment, the flexible portion 450 bends in a direction that can release the locking with the locking portion 160 of the housing 100. As a result, the locking of both can be released.

[0074] (In use)

[0075] Fig.11 FIG. 1 is a partial anatomical view schematically showing a lancet assembly for infants according to an embodiment of the present disclosure in a state of being in use.

[0076] When the engagement between the flexible portion 450 of the movable body 400 and the engagement portion 160 of the housing 100 is released, the compression state of the compression coil spring 500 is released. By the compression release, the movable body 400 can be urged in the first direction by the compression coil spring 500. Thus, the movable body 400 can start to move in the first direction.

[0077] In one embodiment of the present disclosure, as described above, the first body portion 311 of the lancet body 310 as a component of the lancet 300 can move integrally with the movable body 400 in the first direction. On the other hand, the second body portion of the lancet body 310 can engage with the second housing portion 140 in the first direction.

[0078] By adopting this structure, when the movable body 400 moves in the first direction, the first part of the main body 311 also moves in the first direction along with the movement of the movable body 400, and the movement of the second part of the main body 312 engaged with the concave and convex parts in the first direction is restricted. As a result, the axial rotation force toward the first direction side acts on the first part of the main body 311. Through the action of the axial rotation force, as the first part of the main body 311 moves in the first direction, the movement of the second part of the main body that can be engaged with the second part of the shell 140 in the concave and convex parts is restricted in the first direction (lateral direction), and a force to move in the second direction (longitudinal direction) acts on the second part of the main body.

[0079] As described above, before the movable body 400 starts to move in the first direction, the main body second portion 312 of the lancet body 310 is configured to be located between the first end 141 and the second end 142 of the housing second portion 140. Then, in the middle stage of the movable body 400 moving in the first direction, as the main body first portion 311 moves in the first direction, a force to move in the second direction (longitudinal direction) acts on the main body second portion, thereby enabling the main body second portion 312 to move from the first end 141 side of the housing second portion 140 toward the second end 142 side.

[0080] In addition, in the middle of the movement of the movable body 400 in the first direction, as described above, when the main body second portion 312 is located on the second end 142 side of the housing second portion 140, the blade 320 is configured to be able to protrude to the outside through the opening portion 170 of the housing 100. Thus, in the middle of the movement of the movable body 400 in the first direction, the blade 320 can be made to protrude from the inside of the housing 100 to the outside through the opening portion 170 of the housing 100 (see Fig.11 ).

[0081] Furthermore, as described above, when the housing second portion 140 in the first direction is of a size that enables the main body second portion 312 to slide relative to the housing second portion 140 in the second direction, it is possible to improve the movement control of the main body second portion 312. Therefore, when the blade 320 protrudes to the outside as the main body second portion 312 moves in the second direction during use, the movement of the blade 320 can be stabilized.

[0082] (At the end of use)

[0083] Fig.12 This is a partial anatomical view schematically showing a lancet assembly for infants according to one embodiment of the present disclosure in a state where use is completed.

[0084] In one embodiment of the present disclosure, as described above, the first body portion 311 of the lancet body 310 as a component of the lancet 300 can move integrally with the movable body 400. On the other hand, the second body portion of the lancet body 310 can engage with the second housing portion 140 in a concave-convex manner.

[0085] By adopting this structure, when the movable body 400 further moves along the first direction to the other side ( Fig.12 When the movable body 400 is in contact with the left side end thereof, the first main body portion 311 is further moved along the first direction as the movable body 400 moves further, while the movement of the second main body portion 312 engaged by the concave and convex portions in the first direction is restricted.

[0086] Thus, the axial rotation force toward the first direction further acts on the main body first part 311. Due to the further action of the axial rotation force, as the main body first part 311 further moves toward the first direction, the main body second part 312 can move from the second end 142 side of the housing second part 140 toward the first end 141 side. As a result, the main body second part 312 of the lancet main body 310 can be located between the first end 141 and the second end 142 of the housing second part 140, and the blade 320 can be accommodated in the housing 100 in the same state as before use.

[0087] In addition, as described above, in the present disclosure, when the compression coil spring 500 is released from its compressed state and stretched, it is assumed that its stretched state is maintained. Therefore, the movable body 400 connected to the compression coil spring 500 is connected to the housing cover 200 and / or the other side of the housing 100 along the first direction ( Fig.12 The left side end inside), that is, after the shell complex abuts, it will not return to one side of the shell 100 ( Fig. 9 Therefore, since the movable body 400 does not move further, no force is exerted on the second body portion 312 of the lancet 300 connected to the movable body 400 to move toward the second end 142 side of the second housing portion 140 again.

[0088] Therefore, the blade 320 can be kept in the housing 100. Therefore, after a small amount of blood sample is collected from an infant using the blade temporarily exposed outside the housing 100, the blade 320 with blood can be appropriately prevented from being exposed outside the housing 100 again. Therefore, the safety of the infant lancet assembly after use can also be appropriately ensured.

[0089] According to the above, in the present disclosure, the compression coil spring 500 that can be extended in one direction, the movable body 400 that is urged by the compression coil spring 500 and can be moved in one direction, and the lancet 300 connected to the movable body 400 at a predetermined position can be combined with the housing 100 having the above-mentioned characteristic structure in a simple structure. In the present disclosure, the movement of the blade 320 of the lancet 300 can be appropriately controlled by using the lancet assembly 1000 for infants having this simple structure. In this regard, the lancet assembly for infants disclosed in the present disclosure has technical significance.

[0090] Although one embodiment of the present disclosure has been described above, this is merely a typical example within the scope of application of the present disclosure, and therefore, it is easily understood by those skilled in the art that the present disclosure is not limited thereto and that various modifications are possible.

[0091] Furthermore, one embodiment of the present invention as described above includes the following preferred aspects.

[0092] First method :

[0093] A lancet assembly for infants comprises a housing, a lancet respectively accommodated in the housing, a movable body, and a compression coil spring capable of applying force to the movable body in a predetermined first direction.

[0094] The housing is configured to include: a first housing portion, a long side of which extends along the first direction; and a second housing portion, a long side of which extends from the first housing portion side along a second direction perpendicular to the first direction.

[0095] The lancet is configured to include: a lancet body; and a blade mounted on the lancet body.

[0096] The lancet body is configured to include: a first body portion, which is configured to be movable together with the movable body; and a second body portion, which can be engaged with the second housing portion in the first direction.

[0097] The movable body is configured to include: a movable body first portion that can move along the first direction and can be engaged with the housing first portion in the second direction; and a movable body second portion that allows the main body first portion to be axially rotatable.

[0098] Second method :

[0099] In the first aspect, the housing first portion and the housing second portion are arranged in a T-shape.

[0100] Third Way :

[0101] In the first aspect or the second aspect, the width dimension of the housing second portion in the first direction is a dimension that allows the main body second portion to slide relative to the housing second portion in the second direction.

[0102] The fourth method :

[0103] In any one of the first to third aspects, a width dimension of the housing first portion in the second direction is a dimension that allows the movable body first portion to slide relative to the housing first portion in the first direction.

[0104] Fifth method :

[0105] In any one of the first to fourth aspects, one of the movable body first portion and the case first portion is a convex portion, and the other is a concave portion.

[0106] The sixth method :

[0107] In any one of the first to fifth aspects, one of the main body second portion and the casing second portion is a convex portion, and the other is a concave portion.

[0108] The seventh method :

[0109] In any one of the first to sixth aspects, when the movable body moves in the first direction, the main body first portion can move in the first direction integrally with the movable body, while movement of the main body second portion in the first direction is restricted by the shell second portion.

[0110] The eighth method :

[0111] In a seventh aspect subordinate to the sixth aspect, between the second part of the main body and the second part of the shell, the convex part on one side can abut against the inner surface of the concave part on the other side, thereby limiting the movement of the second part of the main body in the first direction.

[0112] Ninth method :

[0113] In any one of the first to eighth aspects, when the movable body moves in the first direction, movement of the movable body first portion in the second direction is restricted by the housing first portion.

[0114] The tenth method :

[0115] In a ninth mode subordinate to the fifth mode, between the movable body first portion and the shell first portion, the convex portion on one side can abut against the inner surface of the concave portion on the other side, thereby limiting the movement of the movable body first portion in the second direction.

[0116] Method 11 :

[0117] In the seventh aspect or the eighth aspect, by restricting the movement of the main body second portion in the first direction, the main body first portion can be axially rotated relative to the movable body.

[0118] Method 12 :

[0119] In any one of the first to eleventh aspects, when the movable body moves in the first direction, the main body first portion is movable in the first direction integrally with the movable body, and the main body second portion is movable in the second direction.

[0120] Method 13 :

[0121] In any one of the first to twelfth modes, the long side of the second portion of the shell is configured to have a first end on the proximal side relative to the first portion of the shell, and a second end on the distal side relative to the first portion of the shell, and before the movable body starts to move in the first direction, the second portion of the main body is located between the first end and the second end of the second portion of the shell.

[0122] Method 14 :

[0123] In the thirteenth aspect, when the movable body moves in the first direction, the main body second portion moves from the first end side toward the second end side, and then moves from the second end side toward the first end side.

[0124] The 15th way :

[0125] In the thirteenth or fourteenth aspect, the housing has an opening through which the blade can protrude, and when the second body portion is located on the second end side, the blade can protrude to the outside through the opening of the housing.

[0126] Method 16 :

[0127] In any one of the thirteenth to fifteenth aspects, when the main body second portion is located between the first end and the second end of the long side of the housing second portion, the blade can be accommodated in the housing.

[0128] Seventeenth method :

[0129] In any one of the first to sixteenth aspects, the housing includes two or more housing first portions which are spaced apart from each other and have long sides extending in the first direction, and the movable body can be engaged with the two or more housing first portions.

[0130] Method 18 :

[0131] In any one of the first to seventeenth modes, the shell is constructed to have a first sub-shell and a second sub-shell, and the first sub-shell and the second sub-shell are each constructed to have the shell first part and the shell second part, and at least the shell first parts and the shell second parts in the two sub-shells are in a configuration relationship that allows them to be opposite to each other.

[0132] Method 19 :

[0133] In any one of the first to eighteenth aspects, the housing is further configured to include a third housing portion capable of being concave-convexly engaged with the first main body portion in the second direction.

[0134] Method 20 :

[0135] In the eighteenth aspect, the main body first portion may be disposed in the same row on two main surfaces of the lancet main body that are opposed to each other.

[0136] Method 21 :

[0137] In any one of the eighteenth to twentieth aspects, the second body portion may be disposed in the same row on two main surfaces of the lancet body that are opposed to each other.

[0138] Method 22 :

[0139] In any one of the first to twenty-first modes, the movable body is further configured to have a flexible portion, and the infant lancet assembly is further configured to have a trigger capable of abutting against the flexible portion. Before use, the flexible portion of the movable body and a specified portion of the shell can be mutually locked. At the beginning of use, the trigger abuts against the flexible portion to release the locking of the flexible portion and the specified portion of the shell.

[0140] Industrial Applicability

[0141] An infant lancet assembly according to one embodiment of the present disclosure is used to collect a small amount of blood sample from an infant.

[0142] CROSS-REFERENCE TO RELATED APPLICATIONS

[0143] This application claims priority under the Paris Convention based on Japanese Patent Application No. 2022-101365 (filing date: June 23, 2022, invention title: "Infant lancet assembly"). All the contents disclosed in the application are incorporated into this specification by reference.

[0144] Description of Reference Numerals

[0145] 1000...Infant lancet assembly; 100...Housing; 100A...First sub-housing; 100B...Second sub-housing; 110, 120...Housing first portion; 130...Housing third portion; 140...Housing second portion; 141...First end of housing second portion; 142...Second end of housing second portion; 150...Housing fourth portion; 160...Lock portion; 170...Opening portion; 200...Housing cover; 300...Lancet; 310...Lancet body; 311...Main body first portion; 312...Main body second portion; 320...Blade; 400...Movable body; 410...Movable body first portion; 420...Movable body first portion; 430...Movable body second portion; 440...Protrusion; 450...Flexible portion; 460...Movable body third portion; 500...Compression coil spring; 600...Trigger; 700...Stop.

Claims

1. A lancet assembly for infants, characterized in that: The invention comprises a housing, a lancet respectively accommodated in the housing, a movable body, and a compression coil spring capable of urging the movable body in a predetermined first direction. The housing is configured to include: a first housing portion, the long side of which extends along the first direction; and a second housing portion, the long side of which extends from the first housing portion side along a second direction perpendicular to the first direction. The lancet is configured to include: a lancet body; and a blade mounted on the lancet body. The lancet body is configured to include: a first body portion, which is configured to be movable together with the movable body; and a second body portion, which can be engaged with the second housing portion in the first direction. The movable body is configured to include: a movable body first portion, which is movable along the first direction and can be engaged with the first portion of the housing in a concave-convex manner in the second direction; and a movable body second part, for setting the main body first part in a manner capable of axial rotation.

2. The lancet assembly for infants according to claim 1, characterized in that: The first shell portion and the second shell portion are configured to be T-shaped.

3. The lancet assembly for infants according to claim 1 or 2, characterized in that: The width dimension of the second housing portion in the first direction is a dimension that enables the second main body portion to slide relative to the second housing portion in the second direction.

4. The lancet assembly for infants according to claim 1 or 2, characterized in that: The width dimension of the first portion of the housing in the second direction is a dimension that allows the first portion of the movable body to slide relative to the first portion of the housing in the first direction.

5. The lancet assembly for infants according to claim 1 or 2, characterized in that: One of the movable body first portion and the housing first portion is a convex portion, and the other is a concave portion.

6. The lancet assembly for infants according to claim 1 or 2, characterized in that: One of the main body second portion and the shell second portion is a convex portion, and the other is a concave portion.

7. The lancet assembly for infants according to claim 6, characterized in that: When the movable body moves in the first direction, the main body first portion can move in the first direction integrally with the movable body, while the movement of the main body second portion in the first direction is restricted by the housing second portion.

8. The lancet assembly for infants according to claim 7, characterized in that: The convex portion on one side can abut against the inner surface of the concave portion on the other side between the main body second portion and the shell second portion, thereby restricting the movement of the main body second portion in the first direction.

9. The lancet assembly for infants according to claim 5, characterized in that: When the movable body moves in the first direction, movement of the first portion of the movable body in the second direction is restricted by the first portion of the housing.

10. The lancet assembly for infants according to claim 9, characterized in that: The convex portion on one side can abut against the inner surface of the concave portion on the other side between the movable body first portion and the housing first portion, thereby restricting the movement of the movable body first portion in the second direction.

11. The lancet assembly for infants according to claim 7 or 8, characterized in that: By restricting the movement of the main body second portion in the first direction, the main body first portion can be axially rotated relative to the movable body.

12. The lancet assembly for infants according to claim 1 or 2, characterized in that: When the movable body moves in the first direction, the main body first portion can move in the first direction integrally with the movable body, and the main body second portion can move in the second direction.

13. The lancet assembly for infants according to claim 1, characterized in that: The long side of the second part of the shell is configured to have a first end on the proximal side relative to the first part of the shell, and a second end on the distal side relative to the first part of the shell, and before the movable body starts to move in the first direction, the second part of the main body is located between the first end and the second end of the second part of the shell.

14. The lancet assembly for infants according to claim 13, characterized in that: When the movable body moves in the first direction, the main body second portion moves from the first end side toward the second end side, and then moves from the second end side toward the first end side.

15. The lancet assembly for infants according to claim 13 or 14, characterized in that: The housing is configured to have an opening portion through which the blade can protrude, and when the second body portion is located on the second end side, the blade can protrude to the outside through the opening portion of the housing.

16. The lancet assembly for infants according to claim 13 or 14, characterized in that: When the second body portion is located between the first end and the second end of the long side of the second shell portion, the blade can be accommodated in the shell.

17. The lancet assembly for infants according to claim 1 or 2, characterized in that: The housing is configured to include two or more housing first portions which are arranged to be spaced apart from each other and have long sides extending in the first direction, and the movable body can be engaged with the two or more housing first portions in a concave-convex manner.

18. The lancet assembly for infants according to claim 1, characterized in that: The shell is constructed to have a first sub-shell and a second sub-shell, and the first sub-shell and the second sub-shell are respectively constructed to have the first shell part and the second shell part, and at least the first shell parts and the second shell parts in the two sub-shells are in a configuration relationship that allows them to be opposite to each other.

19. The lancet assembly for infants according to claim 1 or 2, characterized in that: The housing is further configured to include a third housing portion, and the third housing portion can be engaged with the first main body portion in a concave-convex manner in the second direction.

20. The infant lancet assembly according to claim 18, characterized in that: The first body portion can be arranged in the same row on two main surfaces of the lancet body that are opposite to each other.

21. The infant lancet assembly according to claim 18 or 20, characterized in that: The second body portion can be arranged in the same row on two main surfaces of the lancet body that are opposite to each other.

22. The lancet assembly for infants according to claim 1 or 2, characterized in that: The movable body is further configured to have a flexible portion, and the infant lancet assembly is further configured to have a trigger capable of abutting against the flexible portion. Before use, the flexible portion of the movable body and a specified portion of the shell can be locked with each other. At the beginning of use, the trigger abuts against the flexible portion to release the locking of the flexible portion and the specified portion of the shell.

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