Joint detection sheet and synchronous joint detection head device

Abstract

The utility model provides a joint detection piece and a synchronous joint detection head device. A carrier piece is used for providing a carrier for a plurality of joint probe mounting units; the combined probe mounting unit comprises a base, a lamination, an upper cover and an assembly space, the lamination can be detachably connected to the base, and when the lamination is arranged on the base, the electroencephalogram probe can be fixed to the combined probe mounting unit by being matched with a boss on the lamination; when the upper cover is arranged on the base, an assembly space is formed between the upper cover and the base, and when the near-infrared probe is in the assembly space, the upper end of the near-infrared probe is wrapped and limited by the upper cover, and the lower end of the near-infrared probe is limited by the base, so that the near-infrared probe is fixed on the combined probe mounting unit; according to the number and position requirements, a user can arrange various number combinations of electroencephalogram probes and near-infrared probes on one carrier sheet, and when a plurality of carrier sheets are arranged on the head coating unit, brain parameters can be synchronously detected.

Description

Combined detection strip and synchronous combined detection head device Technical Field

[0001] This utility model relates to the field of electroencephalogram (EEG) detection technology, specifically to a combined detection patch and a synchronous combined detection head device. Background Technology

[0002] Alzheimer's disease (AD) is one of the most common neurodegenerative diseases, with its prevalence increasing dramatically with age. The decline in brain function without the presence of organic degenerative neurological disease is called functional brain aging (FBA). FBA shares many clinical symptoms with early-stage AD, particularly cognitive decline; however, their outcomes differ significantly. Accurate identification of FBA and early-stage AD is crucial for subsequent intervention and treatment.

[0003] The combined use of multiple detection methods plays an important role in the differential diagnosis of early Alzheimer's disease (AD). For example, the combined use of electroencephalogram (EEG) and functional near-infrared spectroscopy (fNIRS) can obtain more multimodal parameters of the brain when processing cognitive processes. Both fNIRS and EEG are scalp localization procedures. fNIRS relies on spectral measurements to estimate cerebral hemodynamic fluctuations, while EEG captures the macroscopic temporal dynamics of brain electrical activity through passive voltage assessment. The "orthogonal" neurophysiological information provided by this combination of two technologies, along with the increasing attention paid to neurovascular coupling, greatly increases the accuracy of identifying febrile encephalopathy (FBA) and early AD.

[0004] In actual combined testing, the two testing methods require separate EEG caps to connect to the device. Different probes with different functions are placed on the head through the EEG cap, and different brain data are collected by different probes to provide a basis for identifying FBA and early AD. However, testing the head with two EEG caps separately greatly increases the testing time, making the testing time longer. The longer testing time can easily cause fluctuations in the patient's emotions, thus affecting the accuracy of the test. In addition, the parameters measured in the two time periods when the two different EEG caps are worn on the patient's head will be different, which reduces the effectiveness of combined testing. Summary of the Invention

[0005] The problem this invention aims to solve is to provide a combined detection plate capable of carrying an EEG probe and a near-infrared probe, as well as a synchronous combined detection head device that can simultaneously detect brain parameters using multiple probes.

[0006] According to one aspect of the present invention, a combined detection strip is provided, comprising:

[0007] A carrier plate; and

[0008] At least one combined probe mounting unit is disposed on the carrier plate; the combined probe mounting unit includes a base, a stack of plates detachably disposed on the base, and a top cover detachably disposed on the base; when the top cover is disposed on the base, an assembly space for accommodating a near-infrared probe is formed between the top cover and the base; the stack of plates includes a boss that extends away from the base when the stack of plates is disposed on the base, so as to mount an EEG probe.

[0009] Compared with existing technologies, the carrier sheet of this invention provides a carrier for multiple combined probe mounting units, enabling the combined probe mounting units to be fixed on the carrier sheet at appropriate positions and spacings. The combined probe mounting unit includes a base, a stack, a top cover, and an assembly space. The stack can be detachably connected to the base. When the base has the stack, the EEG probe can be fixed to the combined probe mounting unit by engaging with the protrusions on the stack. When the top cover is placed on the base, an assembly space is formed between the top cover and the base. When the near-infrared probe is in the assembly space, its upper end is covered and limited by the top cover, and its lower end is limited by the base, thus fixing the near-infrared probe to the combined probe mounting unit. Depending on the quantity and position requirements, users can arrange various combinations of EEG probes and near-infrared probes on a single carrier sheet to facilitate simultaneous detection of brain parameters.

[0010] According to one embodiment of the present invention, the base includes a base body and a retaining ring; the base body includes a base plate, an annular portion disposed on the upper end face of the base plate, and a connecting portion disposed through the base plate; the retaining ring is configured to cooperate with the connecting portion so as to fix the carrier piece between the retaining ring and the base plate.

[0011] According to one embodiment of the present invention, the stacked sheet includes a substrate; the boss is disposed on one end face of the substrate; the outer wall of the substrate is configured to be detachably connected to the inner wall of the annular portion.

[0012] According to one embodiment of the present invention, the upper cover includes a mounting cylinder and an elastic portion disposed within the mounting cylinder; the assembly space is formed by the mounting cylinder and the base plate; the inner sidewall of the mounting cylinder is configured to be detachably connected to the outer wall of the annular portion; when the mounting cylinder is assembled with the base body, the near-infrared probe in the assembly space abuts against the base plate through the elastic portion.

[0013] According to one embodiment of the present invention, the film has a first through hole for the detection medium of the near-infrared probe to pass through; the boss has a second through hole for the detection medium of the electroencephalogram probe to pass through.

[0014] According to one embodiment of the present invention, the carrier sheet has at least one mounting hole; the connecting portion is configured to pass through the mounting hole; the carrier sheet includes at least one first connecting portion, the first connecting portion being disposed on the side of the carrier sheet away from the scalp.

[0015] According to another aspect of the present invention, the present invention provides a synchronous joint detection head device, which includes:

[0016] A head covering unit, wherein the head covering unit is configured to be fixed to the head;

[0017] At least one carrier sheet, wherein the carrier sheet is disposed on the inner wall of the head covering unit; and

[0018] At least one combined probe mounting unit is disposed on the carrier plate; the combined probe mounting unit includes a base, a stack of plates detachably disposed on the base, and a top cover detachably disposed on the base; when the top cover is disposed on the base, an assembly space for accommodating a near-infrared probe is formed between the top cover and the base; the stack of plates includes a boss that extends toward a side away from the base when the stack of plates is disposed on the base, so as to mount an EEG probe;

[0019] When the head covering unit is fixed to the head, the carrier sheet is pressed and fixed to the scalp by the head covering unit.

[0020] Compared with existing technologies, the head covering unit can be made of elastic material, which can fit tightly to the head when it is placed on the head due to the elasticity of the material. Alternatively, it can be made to cover the head using a chin strap, drawstring, or other means. When the head covering unit is in close contact with the head, the carrier sheet set on the inner wall of the head covering unit can also fit tightly to the head, thereby allowing the combined probe mounting unit on the carrier sheet to fit tightly to the head. When the combined probe mounting unit is equipped with an EEG probe and a near-infrared probe, simultaneous detection of brain parameters can be achieved.

[0021] According to one embodiment of the present invention, the head covering unit includes at least one third through hole; the combined probe mounting unit extends out of the covering unit through the third through hole.

[0022] According to one embodiment of the present invention, the head covering unit 3 is configured to cover the frontal lobe region 3a, parietal lobe region 3b, occipital lobe region 3c, cerebellum region 3d and two temporal lobe regions 3e of the head.

[0023] The carrier patch 1 includes a frontal lobe carrier patch 1a, a parietal lobe carrier patch 1b, an occipital lobe carrier patch 1c, a cerebellar carrier patch 1d, and two temporal lobe carrier patches 1e.

[0024] According to one embodiment of the present invention, the carrier sheet includes at least one first connecting portion disposed on the side of the carrier sheet away from the scalp; the head covering unit includes at least one second connecting portion disposed on the outer wall; the second connecting portion is configured to cooperate with the first connecting portion. Attached Figure Description

[0025] Figure 1 is a perspective view of a combined detection strip according to a preferred embodiment of the present invention;

[0026] Figure 2 is a side view exploded view of a combined detection piece according to a preferred embodiment of the present invention;

[0027] Figure 3 is an exploded view of another side of a combined detection sheet according to a preferred embodiment of the present invention;

[0028] Figure 4 is a cross-sectional view of a section of a combined detection strip according to a preferred embodiment of the present invention;

[0029] Figure 5 is a cross-sectional view of another part of the structure of a combined detection piece according to a preferred embodiment of the present invention;

[0030] Figure 6 is an exploded view of an application example of a combined detection strip according to a preferred embodiment of the present invention;

[0031] Figure 7 is a perspective view of an application example of a combined detection strip according to a preferred embodiment of the present invention;

[0032] Figure 8 is a bottom view of a preferred embodiment of the synchronous joint detection head device according to the present invention;

[0033] Figure 9 is a top view schematic diagram of an application example of the synchronous joint detection head device according to a preferred embodiment of the present invention;

[0034] Figure 10 is a top view of a preferred embodiment of the synchronous joint detection head device according to the present invention;

[0035] Figure 11 is a perspective view of an application example of the synchronous joint detection head device according to a preferred embodiment of the present invention; Detailed Implementation

[0036] Before describing any embodiment of this invention in detail, it should be understood that the invention is not limited in its application to the details of the construction and arrangement of the components set forth in the following description or illustrated in the following figures. The invention is capable of other embodiments and can be practiced or carried out in various ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered limiting. The use of “comprising” or “having” and variations thereof herein is intended to cover the items set forth below and their equivalents, as well as any additional items. Unless otherwise specified or limited, the terms “installation,” “connection,” “support,” and “linkage,” and variations thereof are used broadly and cover both direct and indirect installation, connection, support, and linking. Moreover, “connection” and “linkage” are not limited to physical or mechanical connections or links.

[0037] Furthermore, firstly, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation on this utility model. Secondly, the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0038] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

[0039] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0040] Please refer to Figures 1-7 of the accompanying drawings in the instruction manual for the combined detection sheet, which includes a carrier sheet 1 and at least one combined probe mounting unit 2; wherein the combined probe mounting unit 2 is disposed on the carrier sheet 1; the combined probe mounting unit 2 includes a base 21, a stack 22 detachably disposed on the base 21, and a top cover 23 detachably disposed on the base 21; when the top cover 23 is disposed on the base 21, an assembly space 24 for accommodating a near-infrared probe 5 is formed between the top cover 23 and the base 21; the stack 22 includes a boss 221, which extends away from the base 21 when the stack 22 is disposed on the base 21, so as to mount the EEG probe 4.

[0041] It should be noted that, as shown in Figures 6 and 7, the EEG probe 4 and the near-infrared probe 5 are respectively led out by the corresponding EEG host and near-infrared host through wires, and the parameter control of the EEG probe 4 and the near-infrared probe 5 is controlled by their respective hosts; furthermore, the EEG probe 4, the near-infrared probe 5, and the EEG host and near-infrared host that cooperate with them are all existing devices, so this utility model will not describe them in detail.

[0042] In practical use, the carrier plate 1 of this utility model is used as a carrier for multiple combined probe mounting units 2, so that the combined probe mounting units 2 can be fixed on the carrier plate 1 at appropriate positions and spacings. The combined probe mounting unit 2 includes a base 21, a stacked plate 22, a top cover 23, and an assembly space 24. The stacked plate 22 can be detachably connected to the base 21. When the base 21 is equipped with the stacked plate 22, the EEG probe 4 can be fixed to the combined probe mounting unit 2 by cooperating with the protrusion 221 on the stacked plate 22. When the top cover 23 is set on the base 21, the assembly space 24 is formed between the top cover 23 and the base 21. When the near-infrared probe 5 is in the assembly space 24, its upper end is covered and limited by the top cover 23, and its lower end is limited by the base 21, so that the near-infrared probe 5 is fixed to the combined probe mounting unit 2. According to the quantity and position requirements, the user can arrange various combinations of EEG probes 4 and near-infrared probes 5 on a single carrier plate 1 to facilitate simultaneous detection of brain parameters.

[0043] Please refer to Figures 2 and 3. The base 21 includes a base body 211 and a retaining ring 212. The base body 211 includes a base plate 2111, an annular portion 2112 disposed on the upper surface of the base plate 2111, and a connecting portion 2113 disposed through the base plate 2111. The retaining ring 212 is configured to cooperate with the connecting portion 2113 to fix the carrier piece 1 between the retaining ring 212 and the base plate 2111.

[0044] Specifically, the base plate 2111 is disposed on the upper end face of the carrier plate 1, and the retaining ring 212 is disposed on the lower end face of the carrier plate 1. When the connecting part 2113 passes through the base plate 2111 and is fixedly engaged with the retaining ring 212, the entire base 21 is pressed and fixed from the upper and lower end faces of the carrier plate 1.

[0045] Furthermore, as shown in Figures 3, 4, and 5, the lower end face of the substrate 2111 may also be provided with multiple protrusions, which can be fixed to the carrier piece 1 by passing through it; further still, the retaining ring 212 may be provided with multiple protrusion mating holes, and the length of the protrusions can be set to be able to extend into the protrusion mating holes, thereby making the fit between the substrate 2111, the carrier piece 1, and the retaining ring 212 tighter.

[0046] Please refer to section 5, wherein the stacked sheet 22 includes a substrate 222; the boss 221 is disposed on one end face of the substrate 222; and the outer wall of the substrate 222 is configured to be detachably connected to the inner wall of the annular portion 2112.

[0047] It is understood that the stacked piece 22 is fixed by the snap-fit ​​between the base piece 222 and the annular portion 2112; the combination of the outer wall of the base piece 222 and the inner wall of the annular portion 2112 can be at least one of interference fit and slot fit.

[0048] Furthermore, please refer to Figures 3 and 5. One side of the annular portion 2112 has an opening, and one side of the substrate 222 has a pressing part. The pressing part extends out of the opening and beyond the range of the substrate 2111. By setting the pressing part, if the user needs to remove the stacked sheet 22, he / she can simply push up or press down the pressing part to remove the stacked sheet 22 from the annular portion 2112.

[0049] Please refer to Figures 3, 4, and 5. The upper cover 23 includes a mounting cylinder 231 and an elastic part 232 disposed within the mounting cylinder 231. The assembly space 24 is formed by the mounting cylinder 231 and the base plate 2111. The inner wall of the mounting cylinder 231 is configured to be detachably connected to the outer wall of the annular part 2112. When the mounting cylinder 231 is assembled with the base body 211, the near-infrared probe 5 in the assembly space 24 is pressed against the base plate 2111 by the elastic part 232.

[0050] It is understood that the structure of the mounting cylinder 231 is configured to cover the near-infrared probe 5. The mounting cylinder 231 is used to cover the side wall of the near-infrared probe 5. The upper end of the mounting cylinder 231 is provided with an elastic part 232. When the inner side wall of the lower end of the mounting cylinder 231 is connected to the outer wall of the annular part 2112, the elastic part 232 is pressed against by the near-infrared probe 5 and generates elastic force through compression, so that the near-infrared probe 5 is pressed against the substrate 2111. The connection method between the inner side wall of the lower end of the mounting cylinder 231 and the outer wall of the annular part 2112 can be at least one of interference fit and slot fit.

[0051] Furthermore, the side wall of the mounting cylinder 231 has a near-infrared probe cable outlet hole so that the wire of the near-infrared probe 5 can pass through it.

[0052] Please refer to Figures 4 and 5. The substrate 2111 has a first through hole 21111 for the detection medium of the near-infrared probe 5 to pass through; the boss 221 has a second through hole 2211 for the detection medium of the EEG probe 4 to pass through.

[0053] Please refer to Figures 2 and 4, wherein the carrier piece 1 has at least one mounting hole 11; the connecting portion 2113 is configured to pass through the mounting hole 11; the carrier piece 1 includes at least one first connecting portion 12, which is disposed on the side of the carrier piece 1 away from the scalp.

[0054] Furthermore, in other embodiments, the carrier sheet 1 may also be provided with multiple ventilation holes in order to reduce material costs and increase the breathability of the carrier sheet 1 on the head.

[0055] Please refer to Figures 8-11 in the accompanying drawings of the specification for the synchronous joint detection head device, which includes a head covering unit 3, at least one carrier sheet 1, and at least one joint probe mounting unit 2; wherein the head covering unit 3 is configured to be fixed to the head; wherein the carrier sheet 1 is disposed on the inner wall of the head covering unit 3; wherein the joint probe mounting unit 2 is disposed on the carrier sheet 1; the joint probe mounting unit 2 includes a base 21, a stack of sheets 22 detachably disposed on the base 21, and a stack of sheets 22 detachably disposed on the base 21. A top cover 23 is provided on the base 21; when the top cover 23 is provided on the base 21, an assembly space 24 for accommodating the near-infrared probe 5 is formed between the top cover 23 and the base 21; the stack 22 includes a boss 221, which extends away from the base 21 when the stack 22 is provided on the base 21, so as to install the EEG probe 4; when the head covering unit 3 is fixed to the head, the carrier piece 1 is fixed to the scalp by the head covering unit 3.

[0056] In actual use, the head covering unit 3 can be made of elastic material, which can fit tightly against the head when it is placed on the head due to the elasticity of the material. Alternatively, it can be wrapped around the head by means of a chin strap, drawstring, etc. When the head covering unit 3 fits tightly against the head, the carrier sheet 1 set on the inner wall of the head covering unit 3 can also fit tightly against the head, thereby making the combined probe mounting unit 2 on the carrier sheet 1 fit tightly against the head. When the combined probe mounting unit 2 is equipped with an EEG probe 4 and a near-infrared probe 5, it can realize the synchronous detection of brain parameters.

[0057] Please refer to Figure 8, in which the head covering unit 3 includes at least one third through hole 31; the combined probe mounting unit 2 extends out of the covering unit 3 through the third through hole 31.

[0058] Understandably, when the combined probe mounting unit 2 protrudes from the third through hole 31, it will be exposed on the top of the covering unit 3, so that the user can install the EEG probe 4 and the near-infrared probe 5 on the combined probe mounting unit 2.

[0059] Please refer to Figures 8 and 10. The head covering unit 3 is configured to cover the frontal lobe 3a, parietal lobe 3b, occipital lobe 3c, cerebellum 3d and two temporal lobe regions 3e of the head. The carrier sheet 1 includes a frontal lobe carrier sheet 1a, a parietal lobe carrier sheet 1b, an occipital lobe carrier sheet 1c, a cerebellum carrier sheet 1d and two temporal lobe carrier sheets 1e.

[0060] Specifically, the head covering unit 3 is divided into regions according to the partitions of the human brain in order to detect parameters of different brain regions; correspondingly, the carrier piece 1 also needs to be shaped according to the shape of the human brain regions. For example, the carrier piece 1a of the frontal lobe region is set to a fan shape, and the carrier piece 1d of the cerebellum region is set to a crescent shape.

[0061] Please continue to refer to Figure 9. In some embodiments, an EEG probe 4, as indicated by the blue dot, and a near-infrared probe 5, as indicated by the red dot, can be provided.

[0062] Please refer to Figures 2, 8, and 11. The carrier sheet 1 includes at least one first connecting portion 12, which is disposed on the side of the carrier sheet 1 away from the scalp. The head covering unit 3 includes at least one second connecting portion 32 disposed on the outer wall. The second connecting portion 32 is configured to cooperate with the first connecting portion 12.

[0063] The above description only illustrates the preferred embodiment of this utility model and should not be construed as limiting the scope of the claims. This utility model is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of this utility model are also within the scope of protection of this utility model.

Claims

1. A combined detection strip, characterized in that, include: A carrier plate (1); and at least one combined probe mounting unit (2), wherein the combined probe mounting unit (2) is disposed on the carrier plate (1); the combined probe mounting unit (2) includes a base (21), a stack (22) detachably disposed on the base (21), and a top cover (23) detachably disposed on the base (21); when the top cover (23) is disposed on the base (21), an assembly space (24) for accommodating a near-infrared probe is formed between the top cover (23) and the base (21); the stack (22) includes a boss (221), which extends toward the side away from the base (21) when the stack (22) is disposed on the base (21) for mounting an EEG probe.

2. The combined detection strip according to claim 1, characterized in that: The base (21) includes a base body (211) and a retaining ring (212); the base body (211) includes a base plate (2111), an annular portion (2112) disposed on the upper end face of the base plate (2111), and a connecting portion (2113) disposed through the base plate (2111); the retaining ring (212) is configured to cooperate with the connecting portion (2113) so as to fix the carrier piece (1) between the retaining ring (212) and the base plate (2111).

3. The combined detection strip according to claim 2, characterized in that: The stack (22) includes a substrate (222); the boss (221) is disposed on one end face of the substrate (222); the outer wall of the substrate (222) is configured to be detachably connected to the inner wall of the annular portion (2112).

4. The combined detection strip according to claim 2, characterized in that: The top cover (23) includes a mounting cylinder (231) and an elastic part (232) disposed within the mounting cylinder (231); the assembly space (24) is formed by the mounting cylinder (231) and the base plate (2111); the inner wall of the mounting cylinder (231) is configured to be detachably connected to the outer wall of the annular part (2112); when the mounting cylinder (231) is assembled with the base body (211), the near-infrared probe in the assembly space (24) abuts against the base plate (2111) through the elastic part (232).

5. The combined detection strip according to claim 2, characterized in that: The film (2111) has a first through hole (21111) for the detection medium of the near-infrared probe to pass through; the boss (221) has a second through hole (2211) for the detection medium of the EEG probe to pass through.

6. The combined detection strip according to any one of claims 2-5, characterized in that: The carrier sheet (1) has at least one mounting hole (11); the connecting portion (2113) is configured to pass through the mounting hole (11); the carrier sheet (1) includes at least one first connecting portion (12), the first connecting portion (12) being disposed on the side of the carrier sheet (1) away from the scalp.

7. A synchronous joint detection head device, characterized in that, include: A head covering unit (3), wherein the head covering unit (3) is configured to be fixed to a head; at least one carrier piece (1), wherein the carrier piece (1) is disposed on the inner wall of the head covering unit (3); at least one combined probe mounting unit (2), wherein the combined probe mounting unit (2) is disposed on the carrier piece (1); and the combined probe mounting unit (2) includes a base (21), a stack of pieces (22) detachably disposed on the base (21), and a top cover (23) detachably disposed on the base (21). When the top cover (23) is placed on the base (21), an assembly space (24) for accommodating the near-infrared probe is formed between the top cover (23) and the base (21); the stack (22) includes a boss (221), which extends away from the base (21) when the stack (22) is placed on the base (21) to install the EEG probe; when the head covering unit (3) is fixed to the head, the carrier piece (1) is fixed to the scalp by the head covering unit (3).

8. The synchronous joint detection head device according to claim 7, characterized in that: The head covering unit (3) includes at least one third through hole (31); the combined probe mounting unit (2) extends out of the covering unit (3) through the third through hole (31).

9. The synchronous joint detection head device according to claim 7, characterized in that: The head covering unit (3) is configured to cover the frontal lobe (3a), parietal lobe (3b), occipital lobe (3c), cerebellum (3d) and two temporal lobe regions (3e) of the head; the carrier sheet (1) includes a frontal lobe carrier sheet (1a), a parietal lobe carrier sheet (1b), an occipital lobe carrier sheet (1c), a cerebellum carrier sheet (1d) and two temporal lobe carrier sheets (1e).

10. The synchronous joint detection head device according to claim 7, characterized in that: The carrier sheet (1) includes at least one first connecting portion (12), which is disposed on the side of the carrier sheet (1) away from the scalp; the head covering unit (3) includes at least one second connecting portion (32) disposed on the outer wall; the second connecting portion (32) is configured to cooperate with the first connecting portion (12).

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