Rehabilitation training bed device for stroke patient

Abstract

The invention discloses a stroke patient rehabilitation training bed device, which relates to the technical field of stroke patient rehabilitation training and comprises a bottom plate, bed legs, a bed plate, a training mechanism and an adjusting mechanism. By arranging the training mechanism, an electric push rod operates to drive a sliding plate to move, the sliding plate moves to push a supporting plate to rotate, and the elbow of a patient is bent through rotation of the supporting plate; the connecting rod moves downwards, so that the elbow of the patient is stretched, and elbow stretching training can be conveniently carried out on the patient; the supporting plate and the rotating plate form a right angle, so that the front arm and the upper arm of the patient are driven to form a 90-degree angle, the second motor operates to drive the displacement seat to rotate, the supporting plate and the rotating plate rotate, so that the arms of the patient are opened, the first motor operates to drive the rotating seat to rotate, and the rotating seat, the rotating plate and the supporting plate synchronously rotate; therefore, the shoulder joints of the patient are driven to perform shoulder joint extorsion training, and elbow stretching and shoulder joint extorsion training operation can be automatically performed on the patient conveniently.

Description

Technical Field

[0001] This invention relates to the field of rehabilitation training technology for stroke patients, specifically a rehabilitation training bed device for stroke patients. Background Technology

[0002] Stroke, commonly known as apoplexy, is divided into two types: ischemic stroke and hemorrhagic stroke. It is a disease caused by damage to cerebral blood vessels due to various reasons, resulting in focal or global brain tissue damage. The incidence rate is higher in cold seasons, and the peak incidence usually occurs near noon. Stroke is characterized by high incidence, disability rate, recurrence rate, and mortality rate. Ischemic stroke accounts for 75%-90% of all strokes, while hemorrhagic stroke accounts for 10%-25%. Men, obese individuals, and diabetic patients are considered high-risk groups. Common symptoms of stroke include sudden numbness or weakness, especially unilateral body shape abnormalities, speech or comprehension problems, vision problems, headaches, and dizziness. Treatment for ischemic stroke usually involves vascular dilation, endarterectomy, or arterial bypass surgery. Treatment for hemorrhagic stroke usually focuses on clearing aneurysms and thrombi. Immediate treatment after a stroke can significantly improve the prognosis. Prevention of stroke includes controlling high blood pressure, regular exercise, limiting alcohol consumption, and avoiding smoking.

[0003] Limb rehabilitation training for stroke patients needs to be carried out in stages and individually, focusing on early passive movement, mid-term active training, and late-term functional strengthening, combined with physical therapy, occupational therapy, and activities of daily living training. At the same time, attention should be paid to safety and the principle of gradual progression. During the bedridden period, family members or therapists need to help patients perform movements such as shoulder external rotation and elbow extension. However, manual movement involves a large amount of manual operation. In order to facilitate rehabilitation training for patients, a rehabilitation training bed device for stroke patients is provided. Summary of the Invention

[0004] The purpose of this invention is to provide a rehabilitation training bed device for stroke patients in order to facilitate rehabilitation training for patients.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rehabilitation training bed device for stroke patients, comprising a base plate, bed legs fixedly connected to the top of the base plate, a bed board fixedly connected to the top of the bed legs, a headboard and a footboard fixedly connected to both ends of the bed board, a headrest placed on the top of the bed board, and the patient's hands being operated through a training mechanism. The training mechanism includes grooves symmetrically located on both sides of the bed board, a rotating seat rotatably connected to the inner wall of the grooves, a first motor installed inside the bed board, the rotating seat connected to the output end of the first motor, a rotating plate rotatably connected to the top of the rotating seat, a rotatable support plate installed at one end of the rotating plate, straps symmetrically fixedly connected to the top of the support plate, Velcro fasteners and Velcro nut fasteners respectively installed on the outer walls of the two straps, and the rotation position of the support plate being adjusted by an adjustment mechanism.

[0006] As a further embodiment of the present invention: the training mechanism further includes a chute, the chute being formed at the bottom end of the support plate, a mounting plate being symmetrically fixedly connected to the top end of the base plate, a second motor being mounted on the outer wall of the mounting plate, a threaded rod being connected to the output end of the second motor, a toothed plate being slidably connected to the outer wall of the threaded rod, the toothed plate being slidably connected to the top end of the base plate, a spur gear being rotatably connected to the top end of the base plate at the outer wall of the toothed plate, a displacement seat being fixedly connected to the outer wall of the spur gear, an electric push rod being mounted on the displacement seat, a connecting rod being connected to the output end of the electric push rod, a sliding plate being rotatably connected to the top end of the connecting rod, and the sliding plate being slidably connected to the inner wall of the chute.

[0007] As a further embodiment of the present invention: the adjusting mechanism includes an adjusting groove, which is opened at the top of the displacement seat. An adjusting seat is slidably connected to the inner wall of the adjusting groove. A limiting rod passing through the adjusting seat is fixedly connected to the inner wall of the adjusting groove. A slot is opened on one side of the outer wall of the displacement seat. A locking block is rotatably connected to one side of the outer wall of the adjusting seat. The support plate is composed of multiple connecting seats. Two of the connecting seats are rotatably connected to each other. The connecting seats are rotatably connected to the rotating plate. A fixing groove is opened at one end of both the rotating plate and the connecting seat. A fixing block extending out of the connecting seat is slidably connected inside the connecting seat. A fixing spring is connected between the fixing block and the connecting seat. A horizontal plate extending out of the connecting seat is fixedly connected to the outer wall of the fixing block. A horizontal groove for the horizontal plate to slide is opened inside the connecting seat. An L-shaped block extending out of the horizontal plate is slidably connected inside the horizontal plate.

[0008] As a further embodiment of the present invention: the inner wall of the groove is in contact with the outer wall of the slide plate.

[0009] As a further embodiment of the present invention: the outer wall of the toothed plate is provided with a threaded hole, which matches the threaded rod.

[0010] As a further embodiment of the present invention: a toothed groove is provided on one side of the toothed plate, and the toothed groove meshes with the spur gear.

[0011] As a further embodiment of the present invention: the inner wall of the adjusting groove is in contact with the outer wall of the adjusting seat, and the outer wall of the adjusting seat is provided with a limiting hole, the inner wall of the limiting hole being in contact with the outer wall of the limiting rod.

[0012] As a further embodiment of the present invention: the inner wall of the card slot is in contact with the outer wall of the card block.

[0013] As a further embodiment of the present invention: the outer wall of one end of the fixing block is in contact with the inner wall of the fixing groove.

[0014] As a further embodiment of the present invention: the inner wall of the transverse groove is in contact with the outer wall of the transverse plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up a training mechanism, the electric push rod drives the slide plate to move, and the movement of the slide plate pushes the support plate to rotate, causing the patient's elbow to bend; the connecting rod moves downward, thereby extending the patient's elbow, which is convenient for elbow extension training; the support plate and the rotating plate are at a right angle, thereby causing the patient's forearm and upper arm to be at a 90-degree angle; the second motor drives the displacement seat to rotate, and the support plate and the rotating plate rotate, thereby opening the patient's arm; the first motor drives the rotating seat to rotate, and the rotating seat, the rotating plate and the support plate rotate synchronously, thereby driving the patient's shoulder joint to perform shoulder external rotation training, which is convenient for automatically performing elbow extension and shoulder external rotation training operations on the patient; 2. By setting an adjustment mechanism, select two connecting seats corresponding to the bending position. For the connecting seat away from the rotating plate, push the horizontal plate, and the fixing block moves out of the fixing groove, canceling the fixation between the two connecting seats, so that the two connecting seats can rotate, thereby adjusting the bending position of the tray; push the adjusting seat to slide in the adjustment groove, and the sliding plate slides to the connecting seat away from the rotating plate. The locking block rotates and engages into the locking groove, positioning the adjusting seat in the adjustment groove, which facilitates the adjustment of the bending position of the tray according to the patient's elbow joint position. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the installation of the rotating base of the present invention; Figure 3This is a schematic diagram of the installation of the rotating plate of the present invention; Figure 4 This is a schematic diagram of the toothed plate of the present invention; Figure 5 This is a schematic diagram of the displacement seat of the present invention; Figure 6 This is a schematic diagram of the connector of the present invention; Figure 7 This is a cross-sectional view of the connector of the present invention; Figure 8 This is a schematic diagram of the structure of the fixing block of the present invention; Figure 9 This is a schematic diagram of the installation of the L-shaped block of the present invention.

[0017] In the diagram: 1. Base plate; 2. Bed legs; 3. Bed board; 4. Headboard; 5. Footboard; 6. Backrest; 7. Training mechanism; 701. Groove; 702. First motor; 703. Rotating seat; 704. Rotating plate; 705. Support plate; 706. Straps; 707. Velcro; 708. Velcro; 709. Slide; 710. Mounting plate; 711. Second motor; 712. Threaded rod; 713. Gear 714. Plate; 715. Spur gear; 716. Displacement seat; 717. Electric push rod; 718. Connecting rod; 719. Slide plate; 800. Adjustment mechanism; 801. Adjustment groove; 802. Adjustment seat; 803. Limiting rod; 804. Slot; 805. Slot; 806. Connecting seat; 807. Fixing groove; 808. Fixing block; 809. Fixing spring; 810. Horizontal plate; 811. Horizontal groove; 812. L-shaped block. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention 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, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0020] Please see Figures 1 to 9In this embodiment of the invention, a rehabilitation training bed device for stroke patients includes a base plate 1, bed legs 2 fixedly connected to the top of the base plate 1, a bed board 3 fixedly connected to the top of the bed legs 2, a headboard 4 and a footboard 5 fixedly connected to both ends of the bed board 3, a headrest 6 placed on the top of the bed board 3, and the patient's hands being operated through a training mechanism 7. The training mechanism 7 includes grooves 701 symmetrically located on both sides of the bed board 3, a rotating seat 703 rotatably connected to the inner wall of the grooves 701, a first motor 702 installed inside the bed board 3, the rotating seat 703 connected to the output end of the first motor 702, a rotating plate 704 rotatably connected to the top of the rotating seat 703, a rotatable support plate 705 installed at one end of the rotating plate 704, and straps 706 symmetrically fixedly connected to the top of the support plate 705. Velcro straps 706 are respectively installed on the outer walls of the two straps 706. The rotational position of the support plate 705 and the magic sticker 708 is adjusted by the adjustment mechanism 8. The training mechanism 7 also includes a slide 709, which is opened at the bottom end of the support plate 705. The top end of the base plate 1 is symmetrically fixedly connected to the mounting plate 710. The outer wall of the mounting plate 710 is equipped with a second motor 711. The output end of the second motor 711 is connected to a threaded rod 712. The outer wall of the threaded rod 712 is slidably connected to a toothed plate 713. The toothed plate 713 is slidably connected to the top end of the base plate 1. The top end of the base plate 1 is rotatably connected to a spur gear 714 on the outer wall of the toothed plate 713. The outer wall of the spur gear 714 is fixedly connected to a displacement seat 715. An electric push rod 716 is installed on the displacement seat 715. The output end of the electric push rod 716 is connected to a connecting rod 717. The top end of the connecting rod 717 is rotatably connected to a slide plate 718. The slide plate 718 is slidably connected to the inner wall of the slide 709.

[0021] In this embodiment: the patient lies on the bed board 3 with his head resting on the pillow 6, his shoulder on the rotating plate 704, his forearm on the support plate 705, the Velcro 707 attached to the Velcro 708, and two straps 706 fixing the patient's forearm to the support plate 705. During training, the electric push rod 716 is activated, which drives the connecting rod 717 to move upward. The movement of the connecting rod 717 causes the sliding plate 718 to move, which in turn pushes the support plate 705 to rotate. The rotation of the support plate 705 causes the patient's elbow to bend. The operation of the electric push rod 716 drives the connecting rod 717 to move downward. At this time, the support plate 705 rotates downward under gravity, thereby extending the patient's elbow and facilitating elbow extension training. The electric push rod 716 is activated, driving the connecting rod 717 to move upward until the support plate 705 and the rotating plate 704 are at a right angle, thereby causing the patient's forearm and upper arm to form a 90-degree angle. Then, the second motor 711 is activated, which drives the threaded rod 712 to rotate. The rotation of the threaded rod 712 drives the toothed plate 713 to move, which in turn drives the spur gear 714 to rotate. The rotation of the spur gear 714 drives the displacement seat 715 to rotate, which in turn drives the electric push rod 716 to move in a circular motion. The movement of the electric push rod 716 drives the support plate 705 and the rotating plate 704 to rotate via the slide plate 718, thereby opening the patient's arm. At this time, the first motor 702 can be activated, which drives the rotating seat 703 to rotate. The rotating seat 703, the rotating plate 704, and the support plate 705 rotate synchronously, thereby driving the patient's shoulder joint to perform shoulder external rotation training, which facilitates automatic elbow extension and shoulder external rotation training operations for the patient.

[0022] Please refer to this carefully. Figures 5 to 9 The adjusting mechanism 8 includes an adjusting groove 801, which is located at the top of the displacement seat 715. An adjusting seat 802 is slidably connected to the inner wall of the adjusting groove 801. A limiting rod 803, passing through the adjusting seat 802, is fixedly connected to the inner wall of the adjusting groove 801. A slot 804 is provided on one outer wall of the displacement seat 715. A locking block 805 is rotatably connected to one outer wall of the adjusting seat 802. The support plate 705 is composed of multiple connecting seats 806, with two connecting seats 806 rotatably connected to each other. The connecting seats 806 and the rotating plate 704 rotate... The rotating plate 704 and the connecting seat 806 are both provided with a fixing groove 807 at one end. The connecting seat 806 is slidably connected to a fixing block 808 extending out of the connecting seat 806. A fixing spring 809 is connected between the fixing block 808 and the connecting seat 806. A horizontal plate 810 extending out of the connecting seat 806 is fixedly connected to the outer wall of the fixing block 808. The connecting seat 806 is provided with a horizontal groove 811 for the horizontal plate 810 to slide. An L-shaped block 812 extending out of the horizontal plate 810 is slidably connected to the inside of the horizontal plate 810.

[0023] In this embodiment: the patient lies on the bed board 3 with his shoulder on the rotating plate 704. Since the elbow joint positions of different patients are different, the bending position of the support plate 705 needs to be adjusted. Select the two connecting seats 806 corresponding to the bending position. For the connecting seat 806 away from the rotating plate 704, push the horizontal plate 810. The horizontal plate 810 slides in the horizontal groove 811. The displacement of the horizontal plate 810 causes the fixing block 808 to move, compressing the fixing spring 809. The fixing block 808 moves out of the fixing groove 807, releasing the fixation between the two connecting seats 806, allowing the two connecting seats 806 to rotate. At the same time, push the L-shaped block 812 to move. The L-shaped block 812 moves and engages in the horizontal groove 811, fixing the position of the horizontal plate 810, thereby fixing the position of the fixing block 808. The adjustment seat 802 is fixed in place, thereby adjusting the bending position of the support plate 705. After that, the adjustment seat 802 is pushed to slide in the adjustment groove 801. The displacement of the adjustment seat 802 drives the slide plate 718 to slide in the slide groove 709 through the electric push rod 716 until the slide plate 718 slides to the connecting seat 806 away from the rotating plate 704. Then, the locking block 805 is rotated and locked into the locking groove 804, positioning the adjustment seat 802 in the adjustment groove 801. This allows for the positioning operation of the electric push rod 716, facilitating the adjustment of the bending position of the support plate 705 according to the patient's elbow joint position.

[0024] Please refer to this carefully. Figures 2 to 5 The inner wall of the slide 709 fits against the outer wall of the slide plate 718.

[0025] In this embodiment: the electric push rod 716 drives the connecting rod 717 to move upward, the connecting rod 717 moves the sliding plate 718 to move, the top of the sliding plate 718 contacts the inner wall of the slide groove 709, the sliding plate 718 moves and pushes the support plate 705 to rotate, when the support plate 705 rotates at a right angle to the rotating plate 704, one outer wall of the sliding plate 718 fits against the inner wall of the slide groove 709.

[0026] Please refer to this carefully. Figures 2 to 5 The outer wall of the toothed plate 713 is provided with a threaded hole, which matches the threaded rod 712.

[0027] In this embodiment: the second motor 711 is started, the second motor 711 drives the threaded rod 712 to rotate, and the rotation of the threaded rod 712 drives the toothed plate 713 to move.

[0028] Please refer to this carefully. Figures 2 to 5 The toothed plate 713 has a toothed groove on one side, which meshes with the spur gear 714.

[0029] In this embodiment: the toothed plate 713 is displaced, causing the spur gear 714 to rotate. The rotation of the spur gear 714 causes the displacement seat 715 to rotate. The rotation of the displacement seat 715 causes the electric push rod 716 to perform circumferential displacement. The displacement of the electric push rod 716 drives the support plate 705 and the rotating plate 704 to rotate through the slide plate 718, thereby causing the patient's arm to open.

[0030] Please refer to this carefully. Figures 5 to 9 The inner wall of the adjusting groove 801 is in contact with the outer wall of the adjusting seat 802. The outer wall of the adjusting seat 802 is provided with a limiting hole, and the inner wall of the limiting hole is in contact with the outer wall of the limiting rod 803.

[0031] In this embodiment: the adjusting seat 802 is pushed to slide in the adjusting groove 801. At this time, the limiting rod 803 slides in the limiting hole to limit the movement of the adjusting seat 802.

[0032] Please refer to this carefully. Figures 5 to 9 The inner wall of the card slot 804 fits against the outer wall of the card block 805.

[0033] In this embodiment: rotating the locking block 805 causes the locking block 805 to engage in the locking groove 804, positioning the adjusting seat 802 in the adjusting groove 801, thereby positioning the electric push rod 716.

[0034] Please refer to this carefully. Figures 5 to 9 One end of the outer wall of the fixing block 808 is in contact with the inner wall of the fixing groove 807.

[0035] In this embodiment: the fixing block 808 is engaged into the fixing groove 807 by the elastic force of the fixing spring 809, which fixes the two connecting seats 806 and prevents the two connecting seats 806 from rotating.

[0036] Please refer to this carefully. Figures 5 to 9 The inner wall of the transverse groove 811 is in contact with the outer wall of the transverse plate 810.

[0037] In this embodiment: the horizontal plate 810 is pushed and slides in the horizontal groove 811. After the horizontal plate 810 is moved to one end of the horizontal groove 811, the L-shaped block 812 is pushed to move. The L-shaped block 812 is displaced and engaged in the horizontal groove 811 to fix the position of the horizontal plate 810.

[0038] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A rehabilitation training bed device for stroke patients, characterized in that, The system includes a base plate (1), with bed legs (2) fixedly connected to the top of the base plate (1), and a bed board (3) fixedly connected to the top of the bed legs (2). Headboard (4) and footboard (5) are fixedly connected to both ends of the bed board (3). A headrest (6) is placed on the top of the bed board (3). The patient's hands are operated via a training mechanism (7), which includes a groove (701) symmetrically located on both sides of the bed board (3). A rotating seat (703) is rotatably connected to the inner wall of the groove (701). The bed board ( 3) The interior is equipped with a first motor (702), the rotating seat (703) is connected to the output end of the first motor (702), the top of the rotating seat (703) is rotatably connected to a rotating plate (704), one end of the rotating plate (704) is equipped with a rotatable support plate (705), the top of the support plate (705) is symmetrically fixedly connected with straps (706), the outer walls of the two straps (706) are respectively equipped with Velcro (707) and Velcro (708), and the rotation position of the support plate (705) is adjusted by the adjustment mechanism (8).

2. The rehabilitation training bed device for stroke patients according to claim 1, characterized in that, The training mechanism (7) also includes a slide groove (709) located at the bottom end of the support plate (705). A mounting plate (710) is symmetrically fixed to the top of the base plate (1). A second motor (711) is mounted on the outer wall of the mounting plate (710). A threaded rod (712) is connected to the output end of the second motor (711). A toothed plate (713) is slidably connected to the outer wall of the threaded rod (712). The toothed plate (713) is slidably connected to the base plate (1). At the top of the base plate (1), the top of the base plate (1) is rotatably connected to the outer wall of the toothed plate (713) and a spur gear (714) is rotatably connected to the outer wall of the spur gear (714). A displacement seat (715) is fixedly connected to the outer wall of the spur gear (714). An electric push rod (716) is installed on the displacement seat (715). A connecting rod (717) is connected to the output end of the electric push rod (716). A sliding plate (718) is rotatably connected to the top of the connecting rod (717). The sliding plate (718) is slidably connected to the inner wall of the groove (709).

3. The rehabilitation training bed device for stroke patients according to claim 2, characterized in that, The adjusting mechanism (8) includes an adjusting groove (801) located at the top of the displacement seat (715). An adjusting seat (802) is slidably connected to the inner wall of the adjusting groove (801). A limiting rod (803) passing through the adjusting seat (802) is fixedly connected to the inner wall of the adjusting groove (801). A slot (804) is provided on one outer wall of the displacement seat (715). A locking block (805) is rotatably connected to one outer wall of the adjusting seat (802). The support plate (705) is composed of multiple connecting seats (806). Two connecting seats (806) are rotatably connected. The connecting seats (806) and the rotating plate (704) rotate... The rotating plate (704) and the connecting seat (806) are connected by a fixed groove (807) at one end. The connecting seat (806) is slidably connected to a fixed block (808) extending out of the connecting seat (806). A fixed spring (809) is connected between the fixed block (808) and the connecting seat (806). The outer wall of the fixed block (808) is fixedly connected to a horizontal plate (810) extending out of the connecting seat (806). The connecting seat (806) is provided with a horizontal groove (811) for the horizontal plate (810) to slide. The horizontal plate (810) is slidably connected to an L-shaped block (812) extending out of the horizontal plate (810).

4. The rehabilitation training bed device for stroke patients according to claim 2, characterized in that, The inner wall of the groove (709) is in contact with the outer wall of the slide plate (718).

5. The rehabilitation training bed device for stroke patients according to claim 2, characterized in that, The outer wall of the toothed plate (713) is provided with a threaded hole, which matches the threaded rod (712).

6. The rehabilitation training bed device for stroke patients according to claim 2, characterized in that, The toothed plate (713) has a toothed groove on one side, which meshes with the spur gear (714).

7. The rehabilitation training bed device for stroke patients according to claim 3, characterized in that, The inner wall of the adjustment groove (801) is in contact with the outer wall of the adjustment seat (802), and the outer wall of the adjustment seat (802) is provided with a limiting hole, the inner wall of the limiting hole is in contact with the outer wall of the limiting rod (803).

8. The rehabilitation training bed device for stroke patients according to claim 3, characterized in that, The inner wall of the slot (804) fits against the outer wall of the block (805).

9. A rehabilitation training bed device for stroke patients according to claim 3, characterized in that, One end of the outer wall of the fixing block (808) is in contact with the inner wall of the fixing groove (807).

10. A rehabilitation training bed device for stroke patients according to claim 3, characterized in that, The inner wall of the transverse groove (811) is in contact with the outer wall of the transverse plate (810).

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