Nonwoven fabric fixing device and subject movement restriction system

Abstract

To provide a nonwoven fabric fixing device and a subject movement restriction system that allows a male hook-and-loop fastener to be detachably fixed to a base without requiring a dedicated mounting part on the base for fixing the male hook-and-loop fastener. [Solution] The device 5 comprises a mounting portion 51 and a male hook-and-loop fastener 55. The mounting portion 51 is attached to the base end 24 of the base 2, which has a mounting surface 23 on which the subject H is placed, and is a portion closer to the end of the short-side direction D1 than to the center C of the short-side direction D1 of the mounting surface 23. The male hook-and-loop fastener 55 has an engaging surface with a plurality of hooks that can engage with the nonwoven fabric 3. The male hook-and-loop fastener 55 engages with the nonwoven fabric 3 that covers the subject H placed on the base 2, and restricts the movement of the subject H placed on the base 2 in the short-side direction D1 and direction D3 together with the nonwoven fabric 3 and the base 2. The mounting portion 51 has a metal protrusion that fits into a groove 26 of a metal rail 25 that extends along the longitudinal direction D2 and is located at the base end 24 of the base 2.

Description

Technical Field

[0001] The present invention relates to a non-woven fabric fixing device and a subject movement restriction system.

Background Art

[0002] Conventionally, in imaging diagnostic devices such as X-ray CT devices and MRI devices, the torso of a subject lying horizontally on a bed is fixed with a belt or the like so that the subject does not move during the examination. Specifically, a male surface fastener having a plurality of hooks is fixed to each of one first side surface and the other second side surface in the lateral direction of the bed. A non-woven fabric is placed over the torso of the subject placed on the bed, and both ends of the non-woven fabric are engaged with the plurality of hooks of the male surface fastener and fixed removably. Thereby, movement of the subject placed on the bed in the lateral direction of the placement surface and in the direction perpendicular to the placement surface is restricted by the non-woven fabric, the bed, and the male surface fastener.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] An instrument for treating a subject may be attached to a side surface in the lateral direction of the bed on which the subject is placed. In this case, it may be difficult to provide a dedicated attachment portion on the bed for fixing the male surface fastener.

[0005] An object of the present invention is to provide a non-woven fabric fixing device and a subject movement restriction system that can fix a male surface fastener removably to a bed without providing a dedicated attachment portion on the bed for fixing the male surface fastener.

Means for Solving the Problems

[0006] A nonwoven fabric fixing device according to a first aspect of the present invention comprises: a mounting portion that is detachably attached to the end of a table having a mounting surface on which a subject is placed, which is a portion closer to the end in the short direction than to the center in the short direction of the mounting surface; and a male hook-and-loop fastener that has an engaging surface having a plurality of hooks that can engage with the nonwoven fabric, and engages with the nonwoven fabric that covers the subject placed on the table, and restricts the movement of the subject placed on the table in the short direction of the mounting surface and in a direction perpendicular to the mounting surface, together with the nonwoven fabric and the table, wherein the mounting portion has a metal protrusion that fits into a groove of a metal rail that the table has at the end of the table and extends along the longitudinal direction of the mounting surface, or a winding portion that is wrapped around a handrail that extends in the longitudinal direction and is provided at the end of the table and fixed to the handrail. The mounting portion of the nonwoven fabric fixing device can be detachably attached to the end of the table using the rail or handrail of the table. The mounting section of the nonwoven fabric fastener allows the male hook-and-loop fastener to be detachably fixed to the base without requiring a dedicated mounting section on the base for fixing the male hook-and-loop fastener.

[0007] A subject movement restriction system according to a second aspect of the present invention comprises a nonwoven fabric and a nonwoven fabric fixing device according to the first aspect, wherein at least one end of the nonwoven fabric covering the subject placed on the stand is fixed to the nonwoven fabric fixing device, thereby restricting the movement of the subject placed on the stand in the direction of the shorter side of the surface described above and in the direction perpendicular to the surface described above. The subject movement restriction system according to the second aspect provides the same effect as the nonwoven fabric fixing device according to the first aspect. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view of the examination bed 2 and the subject movement restriction system 1. [Figure 2] This is a front view of part of the bed 2 and the subject movement restriction system 1. [Figure 3] (A) and Figure 3(B) are explanatory diagrams of the nonwoven fabric fixing device 5 in which the first plate 61, the second plate 62, and the holder 64 are positioned parallel to each other. [Figure 4] (A) and Figure 3(B) are explanatory diagrams of the nonwoven fabric fixing device 7 in the state where the sheet body 74 is unfolded. [Figure 5] Figures (A) and 5(B) are explanatory diagrams of the nonwoven fabric fixing device 8. [Figure 6] Figures (A) and 6(B) are explanatory diagrams of the male hook fastener 9, and Figure 6(C) is an explanatory diagram of the male hook fastener 99. [Figure 7] (A) is a front view of a modified subject movement restriction system 4 having a pair of nonwoven fabric fixing devices 8 and nonwoven fabric 3, and Figure 7(B) is an explanatory diagram of a modified subject movement restriction system 6 having a male hook-and-loop fastener 9 and nonwoven fabric 3. [Modes for carrying out the invention]

[0009] Hereinafter, an embodiment of the subject movement restriction system 1 and nonwoven fabric fixing devices 5 and 7 of the present invention will be described with reference to the drawings. Hereinafter, the subject movement restriction system 1 will also be referred to as system 1. The nonwoven fabric fixing device 5 will also be referred to as device 5. The nonwoven fabric fixing device 7 will also be referred to as device 7. System 1 of the present invention is used in medical devices such as X-ray diagnostic devices, X-ray CT devices, MRI devices, nuclear medicine diagnostic devices, lithotripsy devices, and thermotherapy devices, and is used to restrict the movement of a subject H placed on the mounting surface 23 of a bed 2. The subject H is a human, an animal, etc. The bed 2 may be a structure on which the subject H is placed, such as a chair.

[0010] The following explanation will use the left / right, front / back, and up / down directions indicated by arrows in the diagram. The shorter direction D1 of the mounting surface 23 of bed 2 is the left-right direction. The longer direction D2 of the mounting surface 23 is the front / back direction. The longer direction D2 of the mounting surface 23 is also called the width direction W. The up / down direction is also called the direction perpendicular to the mounting surface 23 D3.

[0011] The patient table 2 illustrated in this embodiment is used when performing close-range X-ray fluoroscopy using an X-ray imaging device 10. The patient table 2 has a support base 20, a base 21, and a top plate 22. The support base 20 supports the base 21 and the top plate 22. The base 21 is a housing that supports the top plate 22. The top plate 22 is on which the subject H is placed and is movable horizontally relative to the base 21. The top plate 22 has a mounting surface 23 on which the subject H is placed. The mounting surface 23 is the upper surface of the top plate 22.

[0012] The berth 2 has a metal rail 25 with a groove 26 extending in the longitudinal direction D2 at the right end 24 of the mounting surface 23 in the short direction D1. The right end 24 is closer to one end in the short direction D1, i.e., the right end, than to the center C of the short direction D1 of the mounting surface 23. The rail 25 extends from the front end to the rear end of the berth 2. The groove 26 is U-shaped with an open upper end when viewed from the front. The groove 26 has a first part 261 and a second part 262. The second part 262 is located in the center of the groove 26 in the longitudinal direction D2. The width of the first part 261 at the upper end of the rail 25, i.e., the length L1 in the left-right direction, is shorter than the length L2 in the left-right direction of the second part 262. The mounting part 51 of the device 5, described later, is attached to the groove 26 of the rail 25.

[0013] The bed 2 has a metal rail 35 with a groove 36 extending in the longitudinal direction D2 at the left end 34 in the short direction D1 of the mounting surface 23. The left end 34 is closer to the other end in the short direction D1, i.e., the left end, than to the center C in the short direction D1 of the mounting surface 23. The rail 35 extends from the front end to the rear end of the bed 2. The groove 36 is U-shaped with the upper part open when viewed from the front. The rail 35 has the same configuration as the rail 25. A handrail 37 is attached to the groove 36 of the rail 35. The handrail 37 is used, for example, when the subject H stands up from the bed 2. An instrument 7 is wrapped around and fixed to the handrail 37.

[0014] System 1 comprises a nonwoven fabric 3 and instruments 5 and 7. The nonwoven fabric 3 is elongated. The width of the nonwoven fabric 3 is, for example, 300 mm. One side of the nonwoven fabric 3, the engaging surface 31, functions as a loop for a hook-and-loop fastener. The other side of the nonwoven fabric 3 is a water-repellent surface with a water-repellent coating. The water-repellent surface 32 repels bodily fluids such as blood. When not in use, the nonwoven fabric 3 may be stored folded or rolled up, in which case it can be cut to the required length for use. When not in use, the elongated nonwoven fabric 3 may be sealed in an individual bag for each subject H, in which case the nonwoven fabric 3 can be kept hygienic.

[0015] The descriptions of devices 5 and 7 use the width direction W, winding direction M, and thickness direction T shown in Figures 3 and 4. The width direction W, winding direction M, and thickness direction T are directions that change depending on the usage state of devices 5 and 7. The description of device 5 is based on the position in which the first plate 61, the second plate 62, and the holder 64 extend in parallel, as shown in Figure 3. The description of device 7 is based on the state in which the sheet body 74 is spread out, as shown in Figure 4.

[0016] As shown in Figures 1 to 3, the device 5 comprises a hinge 56, a mounting part 51, a holder 64, a connecting plate 65, and a male hook-and-loop fastener 55. The hinge 56 has a first plate 61 and a second plate 62. The second plate 62 is rotatably connected to the first plate 61. The first plate 61 and the second plate 62 are each rectangular metal plates that are long in the width direction W. The pivot center K of the hinge 56 extends in a direction along the width direction W.

[0017] The mounting portion 51 is detachably attached to the right end 24 of the berth 2. The mounting portion 51 has a pair of protrusions 52 that fit into the groove 26 of the rail 25. The pair of protrusions 52 have the same configuration as each other and are positioned at one end and the other end of the width direction W of the first plate 61.

[0018] The convex portion 52 of this embodiment is a hexagon bolt 523 fixed to the first plate 61 by a knurled nut 521 and a nut 522 such that the head 524 is at a position separated from the first plate 61. The knurled nut 521 has concavities and convexities on its outer peripheral portion, and is a stepped nut that is easier to turn by hand compared to a normal nut without concavities and convexities on its outer peripheral portion. The knurled nut 521 is externally inserted onto the hexagon bolt 523 and is disposed between the first plate 61 and the head 524. The first plate 61 is disposed between the knurled nut 521 and the nut 522. The nut 522 is fastened to the threaded tip of the hexagon bolt 523. The diagonal distance L3 of the hexagon bolt 523 is longer than the length L1 and shorter than the length L2. The thread diameter L4 of the hexagon bolt 523 is shorter than the length L and the length L2.

[0019] The holding body 64 has flexibility and is formed of a sheet-like material. The holding body 64 is formed of, for example, cloth. The holding body 64 has a holding surface 63 that is larger than the engaging surface 57 of the male surface fastener 55 described later. The holding surface 63 of the holding body 64 holds the entire surface 58 on the opposite side of the engaging surface 57 that engages with the non-woven fabric 3 of the male surface fastener 55. That is, the surface 58 is entirely covered by the holding surface 63. The male surface fastener 55 of this embodiment is sewn to the holding body 64. The length in the width direction W of the male surface fastener 55 is larger than the length in the width direction W of the non-woven fabric 3. The length in the width direction W of the male surface fastener 55 is, for example, 350 mm, and the length in the winding direction of the male surface fastener 55 is, for example, 120 mm.

[0020] The connecting plate 65 is a rectangular plate that is long in the width direction W and made of flexible plastic. The connecting plate 65 connects the holding body 64 and the second plate 62. One end of the connecting plate 65 is fixed to the second plate 62 by a plurality of fasteners 68. The other end of the connecting plate 65 is sewn and fixed to the holding body 64. Each of the plurality of fasteners 68 in this embodiment is a set of 5 bolts and nuts, and is arranged at substantially equal intervals along the width direction W.

[0021] As shown in Fig. 3(B), in the posture where the first plate 61, the second plate 62, and the holder 64 extend in parallel, the connecting plate 65 is disposed between the second plate 62 and the head 524 and the holder 64 in the thickness direction T. In the winding direction M, the extending range of the second plate 62 and the extending range of the holder 64 do not overlap with each other.

[0022] The male surface fastener 55 is fixed to the second plate 62 by a plurality of fasteners 68 via the connecting plate 65 and the holder 64. The male surface fastener 55 is made of a resin such as nylon (registered trademark), polyester, and polypropylene. The male surface fastener 55 has an engaging surface 57 and a surface 58 opposite to the engaging surface 57. The engaging surface 57 has a plurality of hooks 59 that engage with the non-woven fabric 3. The length of the plurality of hooks 59 in the thickness direction T is shorter than the length of the hooks of a general-purpose surface fastener in the thickness direction T. The length of the plurality of hooks 59 in the thickness direction T only needs to be a length that can entangle with the fibers of the engaging surface 31 of the non-woven fabric 3 and enable the engaging surface 31 of the non-woven fabric 3 and the engaging surface 57 of the male surface fastener 55 to engage. The length of the male surface fastener 55 in the thickness direction T is preferably 0.5 to 1.2 mm, and more preferably in the range of 0.6 to 0.8 mm. The plurality of hooks 59 can engage with the engaging surface 31 of the non-woven fabric 3.

[0023] The engaging surface 57 of the male surface fastener 55 engages with a part of the non-woven fabric 3 covering the subject H placed on the bed 2. The male surface fastener 55 restricts the movement of the subject H placed on the bed 2 in the short-side direction D1 of the placement surface 23 and the direction D3 perpendicular to the placement surface 23 together with the non-woven fabric 3 and the bed 2.

[0024] As shown in Figs. 3(A) and 3(B), in the posture where the hinge 56, the first plate 61, the second plate 62, and the holding surface 63 extend in parallel, the direction in which the male surface fastener 55 with respect to the holder 64 is held is the same as the direction in which the convex portion 52 of the mounting portion 51 is provided with respect to the first plate 61.

[0025] As shown in Figures 1, 2, and 4, the device 7 comprises a sheet body 74, a mounting portion 70, and a male hook-and-loop fastener 79. In the orientation shown in Figure 4(A), the sheet body 74 is rectangular in shape, with a length in the winding direction M shorter than the width direction W. The length in the width direction W of the sheet body 74 is, for example, 350 mm, and the length in the winding direction of the male hook-and-loop fastener 79 is, for example, 460 mm. The sheet body 74 is flexible, sheet-like, and made of, for example, cloth. The mounting portion 70 has a winding portion 73 that is wound around a handrail 37 extending in the longitudinal direction D2, provided at the left end 34, and fixed to the handrail 37. The winding portion 73 has a loop portion 71 and a hook portion 72 of the hook-and-loop fastener. The hook portion 72 is rectangular in shape, with a length in the width direction W, and is fixed to one end of the first surface 77 of the sheet body 74 in the winding direction M. The hook portion 72 has multiple hooks, similar to those found in a general-purpose hook fastener. The length of the hooks in the thickness direction T of the hook portion 72 is longer than the length of the multiple hooks 76 in the thickness direction T. The loop portion 71 is provided across the entire first surface 77 of the sheet body 74.

[0026] The male hook-and-loop fastener 79 is a rectangular sheet in which the length in the winding direction M is shorter than the length in the width direction W. The male hook-and-loop fastener 79 has the same configuration as the male hook-and-loop fastener 55 of the device 5. The length in the winding direction M of the male hook-and-loop fastener 79 is longer than the length in the winding direction M of the hook portion 72. The length in the width direction W of the male hook-and-loop fastener 79 is, for example, 350 mm, and the length in the winding direction of the male hook-and-loop fastener 79 is, for example, 120 mm.

[0027] The male hook-and-loop fastener 79 is fixed to the other end of the second surface 78 of the sheet body 74 in the winding direction M. The male hook-and-loop fastener 79 has an engaging surface 75 and a surface 69 opposite to the engaging surface 75. The engaging surface 75 has a plurality of hooks 76 that engage with the nonwoven fabric 3. The plurality of hooks 76 can engage with the engaging surface 31 of the nonwoven fabric 3.

[0028] The engaging surface 75 of the male hook-and-loop fastener 79 engages with at least the other end of the nonwoven fabric 3 that covers the subject H placed on the bed 2. The male hook-and-loop fastener 79, together with the nonwoven fabric 3 and the bed 2, restricts the movement of the subject H on the bed 23 in the short-side direction D1 and in the direction D3 perpendicular to the placement surface 23.

[0029] An example of how to use System 1 will be described with reference to Figures 1 and 2. The worker secures the device 7 to the handrail 37 at the left end 34 of the bed 2 by wrapping the winding portion 73 of the device 7 around it and engaging the loop portion 71 and the hook portion 72. With the device 7 secured to the handrail 37, the width direction W is parallel to the longitudinal direction D2.

[0030] The worker attaches the device 5 to the rail 25 at the right end 24 of the bed 2. The mounting portion 51 is attached to the rail 25 in a position where the connecting portion 60 between the first plate 61 and the second plate 62 is positioned to the right of the first plate 61. Specifically, the worker inserts the head 524 of the protrusion 52 from the front end of the rail 25 or from the second portion 262 of the rail 25. With the head 524 inserted into the groove 26, the knurled nut 521 is positioned above the rail 25. The movement of the head 524 in the vertical and horizontal directions is restricted by the rail 25. The head 524 can slide in the longitudinal direction D2 relative to the rail 25. When the device 5 is attached to the rail 25, it is slidable along the longitudinal direction D2 of the mounting surface 23. The worker adjusts the mounting position of the device 5 in the longitudinal direction D2 relative to the rail 25. When the device 5 is attached to the rail 25, the width direction W is parallel to the longitudinal direction D2.

[0031] The device 7 is detachably attached to the handrail 37 by wrapping the sheet body 74 around the handrail 37 and engaging the loop portion 71 and the hook portion 72. Since the loop portion 71 is provided across the entire first surface 77, it is easier to adjust the engagement position between the loop portion 71 and the hook portion 72 according to the diameter of the handrail 37, and easier to attach the wrapping portion 73 to the handrail, compared to the case where the loop portion 71 is provided on only a part of the first surface 77.

[0032] The worker positions the nonwoven fabric 3 over the area where they want to restrict the movement of the subject H, with the engaging surface 31 of the nonwoven fabric 3 facing the direction opposite to the subject H. The worker positions the subject H across the left-right direction and engages the left end of the nonwoven fabric 3 with the male hook-and-loop fastener 79 of the instrument 7 to the left of the center C. With the nonwoven fabric 3 stretched, the worker engages the right end of the nonwoven fabric 3 with the male hook-and-loop fastener 55 of the instrument 5 to the right of the center C. As a result, the movement of the subject H, which is placed on the bed 2, in the direction D1 along the short side of the mounting surface 23 and in the direction D3 perpendicular to the mounting surface 23 is restricted by the nonwoven fabric 3, the bed 2, and the male hook-and-loop fasteners 55 and 79.

[0033] The widthwise length W of the male hook-and-loop fasteners 55 and 79 is longer than the widthwise length W of the nonwoven fabric 3. Therefore, when the center of the widthwise W of the nonwoven fabric 3 is aligned with the center of the widthwise W of the male hook-and-loop fasteners 55 and 79, and the male hook-and-loop fasteners 79 are engaged with the nonwoven fabric 3, both ends of the widthwise W of the nonwoven fabric 3 are held by the male hook-and-loop fasteners 55 and 79. As a result, at least one end of the widthwise W of the nonwoven fabric 3 is less likely to peel off the male hook-and-loop fasteners 55 and 79 compared to when at least one end of the widthwise W of the nonwoven fabric 3 is not held by the male hook-and-loop fasteners 55 and 79.

[0034] The worker can remove the nonwoven fabric 3 from the male hook fastener 55 by applying a certain amount of force in a direction that separates the male hook fastener 55 from the right end of the nonwoven fabric 3. The worker can remove the nonwoven fabric 3 from the male hook fastener 79 by applying a certain amount of force in a direction that separates the male hook fastener 79 from the left end of the nonwoven fabric 3.

[0035] At least one of the devices 5 and 7 may be removed from the end of the bed 2, except when the movement of the subject H is restricted using the nonwoven fabric 3. The worker can remove device 5 from the right end 24 of the bed 2 by removing the protrusion 52 from the groove 26 of the rail 25. Removing device 5 from the bed 2 allows another device to be attached to the rail 25 at the right end 24 of the bed 2 for work, and also prevents unintended damage to device 5. In the event that device 5 is damaged, only device 5 can be replaced, and there is no need to replace the entire bed 2. Similarly, the worker can remove device 7 from the bed 2 by applying a certain amount of force in the direction that separates the loop portion 71 and the hook portion 72. Removing device 7 from the bed 2 makes it easier for the worker or subject H to use the handrail. The worker may also attach devices 5 and 7 to the short end D1 of the bed 2, even when the movement of the subject H is restricted using the nonwoven fabric 3. The method of using System 1 may be modified as appropriate.

[0036] In the above embodiment, System 1 is an example of the subject movement restriction system of the present invention. Bed 2 is an example of the table of the present invention. Nonwoven fabric 3 is an example of the nonwoven fabric of the present invention. Instruments 5 and 7 are examples of nonwoven fabric fixing instruments of the present invention. Mounting surface 23 is an example of the mounting surface of the present invention. Right end 24 and left end 34 are examples of table ends of the present invention. Rail 25 is an example of the rail of the present invention. Groove 26 is an example of the groove of the present invention. Mounting parts 51 and 70 are examples of mounting parts of the present invention. Protrusion 52 is an example of the protrusion of the present invention. Male hook-and-loop fasteners 55 and 79 are examples of male hook-and-loop fasteners of the present invention. Hinge 56 is an example of the hinge of the present invention. Engaging surfaces 57 and 75 are examples of engaging surfaces of the present invention. Surfaces 58 and 69 are examples of surfaces opposite to the engaging surfaces of the present invention. First plate 61 is an example of the first plate of the present invention. Second plate 62 is an example of the second plate of the present invention. The holding surface 63 is an example of the holding surface of the present invention. The holder 64 is an example of the holder of the present invention. The loop portion 71 is an example of the loop portion of the present invention. The hook portion 72 is an example of the hook portion of the present invention. The winding portion 73 is an example of the winding portion of the present invention. The center C is an example of the center in the short direction of the mounting surface of the present invention. The short direction D1 is an example of the short direction of the mounting surface of the present invention. The long direction D2 is an example of the long direction of the mounting surface of the present invention. The direction D3 is an example of a direction perpendicular to the mounting surface. The subject H is an example of a subject of the present invention.

[0037] The system 1 of the above embodiment comprises a nonwoven fabric 3 and an instrument 5. The instrument 5 comprises a mounting portion 51 and a male hook-and-loop fastener 55. The mounting portion 51 is detachably attached to the right end 24 of the bed 2, which has a mounting surface 23 on which a subject H is placed, and is a portion closer to the end of the short-side direction D1 than to the center C of the short-side direction D1 of the mounting surface 23. The male hook-and-loop fastener 55 has an engaging surface 57 with a plurality of hooks 59 that can engage with the nonwoven fabric 3. The male hook-and-loop fastener 55 engages with the nonwoven fabric 3 that covers the subject H placed on the bed 2, and together with the nonwoven fabric 3 and the bed, restricts the movement of the subject H placed on the bed 2 in the short-side direction D1 of the mounting surface 23 and in the direction D3 perpendicular to the mounting surface 23. The mounting portion 51 has a metal protrusion 52 that fits into a groove 26 of a metal rail 25 that extends along the longitudinal direction D2 of the mounting surface 23, which the bed 2 has at its right end 24.

[0038] The mounting portion 51 of the device 5 can be detachably attached to the right end portion 24 of the bed 2 by utilizing the rail 25 of the bed 2. The mounting portion 51 of the device 5 allows the male hook fastener 55 to be detachably fixed to the bed 2 without requiring a dedicated mounting portion to be provided on the bed 2 for fixing the male hook fastener 55.

[0039] The system 1 of the above embodiment comprises a nonwoven fabric 3 and an instrument 7. The instrument 7 comprises a mounting portion 70 and a male hook-and-loop fastener 79. The mounting portion 70 is detachably attached to the left end portion 34 of the bed 2, which has a mounting surface 23 on which a subject H is placed, and is closer to the end of the short-side direction D1 than to the center C of the short-side direction D1 of the mounting surface 23. The male hook-and-loop fastener 79 has an engaging surface 75 with a plurality of hooks 76 that can engage with the nonwoven fabric 3. The male hook-and-loop fastener 79 engages with the nonwoven fabric 3 that covers the subject H placed on the bed 2, and together with the nonwoven fabric 3 and the bed 2, restricts the movement of the subject H placed on the bed 2 in the short-side direction D1 of the mounting surface 23 and in the direction D3 perpendicular to the mounting surface 23. The mounting portion 70 has a winding portion 73. The winding portion 73 has a winding portion 73 that is wrapped around a handrail 37 extending in the longitudinal direction D2, which is provided at the left end 34 of the bed 2, and fixed to the handrail 37.

[0040] The mounting portion 70 of the device 7 can be detachably attached to the left end 34 of the bed 2 by utilizing the handrail 37 of the bed 2. The mounting portion 70 of the device 7 allows the male hook fastener 79 to be detachably fixed to the bed 2 without requiring a dedicated mounting portion to be provided on the bed 2 for fixing the male hook fastener 79.

[0041] The device 5 includes a hinge 56 having a first plate 61 and a second plate 62 rotatably connected to the first plate 61. The mounting portion 51 is a protrusion 52 that fits into a groove 26 of a rail 25 provided on the first plate 61. A male hook-and-loop fastener 55 is connected to the second plate 62. The device 5 allows for a relatively simple construction of the metal mounting portion 51.

[0042] The hinge 56 is made of metal. The device 5 includes a flexible holder 64. The holder 64 has a holding surface 63 that is larger than the engaging surface 57 of the male hook fastener 55, and has a holding surface 63 that holds the entire surface 58 opposite to the engaging surface 57. When the hinge 56 is in a position where the first plate 61, the second plate 62, and the holding surface 63 extend parallel to each other, the direction D3 in which the male hook fastener 55 is held relative to the holder 64 is the same as the direction D3 in which the protrusion 52 is provided relative to the first plate 61. When the hinge 56 is in a position where the first plate 61, the second plate 62, and the holding surface 63 extend parallel to each other, the engaging surface 57 faces the mounting surface 23. Therefore, when the device 5 is not in use, by keeping the hinge 56 in a position where the first plate 61, the second plate 62, and the holding surface 63 extend parallel to each other, it is easier to avoid the multiple hooks 59 on the engaging surface 57 engaging with unintended objects.

[0043] The mounting portion 70 of the device 7 has a loop portion 71 and a hook portion 72 of a hook fastener, and is a winding portion 73 that connects to the male hook fastener 55. The mounting portion 51 can be detachably attached to the handrail 37 by winding the winding portion 73 around the handrail 37 and engaging the loop portion 71 and the hook portion 72. The mounting portion 70 of the device 7 has a simple configuration of a loop portion 71 and a hook portion 72 of a hook fastener, and the winding portion 73 can be wound around the handrail 37 or removed from the handrail 37 with simple operation.

[0044] System 1 includes instruments 5 and 7. Instrument 5, one of the instruments 5 and 7, is attached to the right end 24, which is one end of the mounting surface 23 in the short direction D1. Instrument 7, the other of the instruments 5 and 7, is attached to the left end 34, which is the other end of the mounting surface 23 in the short direction D1. In the bed 2 of System 1, the engagement position between the nonwoven fabric 3 and instruments 5 and 7 can be easily adjusted using a simple configuration with nonwoven fabric 3 and instruments 5 and 7 in the short direction of the mounting surface 23. This allows the nonwoven fabric 3 to be fixed with instruments 5 and 7 in an appropriate position according to the body shape of the subject H, and restricts the movement of the subject H in the short direction D1 of the mounting surface 23 and in the direction D3 perpendicular to the mounting surface 23.

[0045] In the above system 1, by adjusting the anterior-posterior position of instruments 5 and 7, it is possible to wrap the nonwoven fabric 3 diagonally around the body axis of subject H, thereby restricting the movement of subject H. In this way, it is possible to fix subject H with the nonwoven fabric 3 while avoiding areas where subject H is receiving treatment such as intravenous drips or wounds.

[0046] Since the nonwoven fabric 3 is treated with a water-repellent coating, even if bodily fluids such as blood from subject H adhere to and contaminate the nonwoven fabric 3, the bodily fluids are less likely to reach the subject. If bodily fluids such as blood from subject H adhere to the nonwoven fabric 3, only the nonwoven fabric 3 can be replaced, and there is no need to replace the entire system 1.

[0047] The nonwoven fabric fixing device and subject movement restriction system of the present invention are not limited to the embodiments described above, and various modifications may be made without departing from the spirit of the invention. For example, the following modifications may be made as appropriate.

[0048] System 1 may be equipped with a pair of instruments 5 or a pair of instruments 7 instead of instruments 5 and 7, depending on the configuration of the bed 2. System 1 may be equipped with a nonwoven fabric 3 and one instrument 5 or one instrument 7, in which case the male hook-and-loop fastener 55 of instrument 5 or the male hook-and-loop fastener 79 of instrument 7 may engage with both one end and the other end of the nonwoven fabric 3 that encircles the bed 2 around the body axis of the subject H placed on the bed 2. System 1 may attach instrument 5 to the left end 34 of the bed 2 or attach instrument 7 to the right end 24 of the bed 2. Each of the two ends of the bed 2 in the short direction D1 may be the right side, left side, the right end of the bottom surface, or the left end of the bottom surface of the bed 2. For example, instrument 5 may be attached to a rail 25 located on the right side of the bed 2. The number of instruments 5 and 7 attached to one end of the bed 2 in the short direction D1 may be changed as appropriate. For example, two or more devices 5 may be attached to the right end 24 of the bed 2.

[0049] The configuration of the mounting portion 51 may be changed as appropriate. The shape, number, and arrangement of the protrusions 52 may be changed as appropriate. The protrusions 52 may be, for example, T-shaped to engage with the groove 26. The number of protrusions 52 may be one or three or more. The protrusions 52 may be formed integrally with the first plate 61. The fixture 5 may omit the hinge 56, in which case, for example, the mounting portion 51 may be attached to the connecting plate 65.

[0050] The configuration of the winding portion 73 may be changed as appropriate. The arrangement of the hook portion 72 on the sheet body 74 may be changed as appropriate. A male hook fastener 79 may be placed on the first surface 77 on which the hook portion 72 is located, or a male hook fastener 79 may be placed on both the first surface 77 and the second surface 78. The winding portion 73 may be attached to the handrail 37 in a removable manner by means of other fasteners such as buttons, hooks, and fasteners instead of the loop portion 71 and the hook portion 72, while wrapped around it. The handrail 37 may be any structure that extends in the longitudinal direction D2 and is capable of wrapping the device 7 around, and may be a handle or the like.

[0051] The size, shape, and arrangement of the male hook-and-loop fasteners 55 and 79 may be changed as appropriate. For example, the length in the width direction W of the male hook-and-loop fastener 55 of the device 5 or the male hook-and-loop fastener 79 of the device 7 may be shorter than the length in the width direction W of the nonwoven fabric 3. When the hinge 56 is in a position where the first plate 61, the second plate 62, and the holding surface 63 extend parallel to each other, the direction in which the male hook-and-loop fastener 55 is held relative to the holder 64 may be different from the direction in which the protrusion 52 of the mounting part 51 is provided relative to the first plate 61, or the male hook-and-loop fasteners 55 may be arranged on each of the two sides of the holder 64. The male hook-and-loop fastener 55 may not be held by the holder 64 but may be directly fixed to the connecting plate 65.

[0052] System 1 further comprises at least one of the nonwoven fabric fixing device 8 illustrated in Figure 5 and the male hook-and-loop fastener 9 illustrated in Figure 6, and depending on the configuration of the bed 2, the device that can be attached may be selected and attached. The nonwoven fabric fixing device 8 is also referred to as device 8.

[0053] The device 8 and the male hook-and-loop fastener 99 can be used together with the nonwoven fabric 3 and the bed 2 to restrict the movement of the subject H, even when the bed 2 does not have any of the rails 25, 35 and handrails 37. As shown in Figures 5 and 7(A), the modified subject movement restriction system 4 comprises the nonwoven fabric 3 and the device 8. The device 8 comprises a mounting portion 83 and a male hook-and-loop fastener 80. The mounting portion 83 has a shape that is long in the width direction W, and one end in the winding direction M has a shape that bulges in the thickness direction T.

[0054] The male hook fastener 80 is sewn and fixed to the other end of the mounting portion 83 in the winding direction M. The male hook fastener 80 has the same configuration as the male hook fastener 55 of the device 5. The male hook fastener 80 has an engaging surface 81 and a surface 82 opposite to the engaging surface 81. The engaging surface 81 has a plurality of hooks 84 that engage with the nonwoven fabric 3. The plurality of hooks 84 may have the same configuration as the plurality of hooks 59 and can engage with the engaging surface 31 of the nonwoven fabric 3.

[0055] The engaging surface 81 of the male hook-and-loop fastener 80 engages with at least one end of the nonwoven fabric 3 that covers the subject H placed on the bed 2. The male hook-and-loop fastener 80, together with the nonwoven fabric 3 and the bed 2, restricts the movement of the subject H on the bed 23 in the short-side direction D1 and in the direction D3 perpendicular to the placement surface 23.

[0056] If the berth 2 is not equipped with rails 25, 35, or handrails 37, for example, as shown in Figure 7(A), rails 86 are attached to the right end 24 and the left end 34 of the berth 2 with double-sided tape or the like and fixed in place. Rails 86 are equipped with C-shaped grooves 87 that extend along the longitudinal direction D2. The opening of the groove 87 of the rail 86 fixed to the right end 24 opens to the right. The opening of the groove 87 of the rail 86 fixed to the left end 34 opens to the left. The mounting portion 83 of the device 8 engages with the groove 87 and is mounted so as to be slidable along the longitudinal direction D2.

[0057] As shown in Figures 6 and 7(B), the modified specimen movement restriction system 6 comprises a nonwoven fabric 3 and a hook-and-loop fastener 9. The hook-and-loop fastener 9 comprises a first hook-and-loop fastener 93 and a second hook-and-loop fastener 94, which are sewn together in a state where they overlap in the thickness direction T, with a portion overlapping in the winding direction M. The first hook-and-loop fastener 93 and the second hook-and-loop fastener 94 have the same configuration as each other, and in detail, have the same configuration as the hook-and-loop fastener 55 of the device 5. The first hook-and-loop fastener 93 and the second hook-and-loop fastener 94 each have an engagement surface 91 and a surface 92 opposite to the engagement surface 91. The engagement surface 91 has a plurality of hooks 95 that engage with the nonwoven fabric 3. The portion where the first male hook fastener 93 and the second male hook fastener 94 are sewn together, that is, one end of the engagement surface 91 of the first male hook fastener 93 in the winding direction M faces and abuts against the other end of the surface 92 of the second male hook fastener 94 in the winding direction M.

[0058] If the bed 2 is not equipped with rails 25, 35 and handrails 37, for example, as shown in Figure 7(B), the male hook fastener 9 may engage one end of the nonwoven fabric 3, which wraps around the bed 2 in the winding direction M, with the engaging surface 91 of the first male hook fastener 93, and engage the other end of the nonwoven fabric 3 in the winding direction M with the second male hook fastener 94, around the body axis of the subject H placed on the bed 2. In this case, the positions in the thickness direction T of the engaging surface 91 of the first male hook fastener 93 and the engaging surface 91 of the second male hook fastener 94 differ by the thickness of the second male hook fastener 94. Therefore, it is easier to engage one end and the other end of the nonwoven fabric 3 in the winding direction M compared to the case where the engaging surfaces 91 that engage one end and the other end of the nonwoven fabric 3 in the winding direction M are the same surface. In this case, in the thickness direction T, the male hook-and-loop fastener 9 is positioned between one end and the other end of the nonwoven fabric 3 in the winding direction M and the specimen H.

[0059] If system 1 has a nonwoven fabric 30 on both sides which are engagement surfaces 31 that can engage with multiple hooks 95, then both ends of the nonwoven fabric 30 may be fixed by a hook-and-loop fastener 99, as shown in Figure 6(B). The hook-and-loop fastener 99 comprises a first hook-and-loop fastener 93 and a second hook-and-loop fastener 94, and the first hook-and-loop fastener 93 and the second hook-and-loop fastener 94 are sewn together in the thickness direction T, with a portion of them overlapping in the winding direction M. The portion where the first hook-and-loop fastener 93 and the second hook-and-loop fastener 94 are sewn together, that is, one end of the surface 92 of the first hook-and-loop fastener 93 in the winding direction M faces and abuts against the other end of the surface 92 of the second hook-and-loop fastener 94 in the winding direction M. In this case, in the thickness direction T, the male hook-and-loop fastener 99 is positioned between one end and the other end of the nonwoven fabric 30 in the winding direction M.

[0060] The above embodiments and modifications may be combined as appropriate, provided they are not contradictory. The applicant intends to obtain patent rights not only for the combinations exemplified in the claims, but also for any combinations of the present invention that do not depart from the spirit of the invention and are not contradictory. [Explanation of Symbols]

[0061] 1: System, 2: Bed, 3: Nonwoven fabric, 5, 7: Instrument, 22: Top plate, 23: Mounting surface, 24: Right end, 25: Rail, 26: Groove, 34: Left end, 51, 70: Mounting part, 52: Protrusion, 55, 79: Male face fastener, 56: Hinge, 57: Engaging surface, 58: Surface, 59: Hook, 61: First plate, 62: Second plate, 63: Holding surface, 64: Holder, 70: Mounting part, 71: Loop part, 72: Hook part, 73: Wrapping part, 75: Engaging surface, 76: Hook, C: Center, D1: Short side direction, D2: Long side direction, D3: Direction, H: Subject

Claims

1. A mounting portion is detachably attached to the end of a table having a mounting surface on which a subject is placed, which is a portion closer to the end in the short direction than the center in the short direction of the mounting surface, A male hook-and-loop fastener having an engaging surface with a plurality of hooks that can engage with the nonwoven fabric, engaging with the nonwoven fabric covering the subject placed on the stand, and restricting the movement of the subject placed on the stand in the short direction of the aforementioned surface and in the direction perpendicular to the aforementioned surface, together with the nonwoven fabric and the stand. Equipped with, The aforementioned mounting portion is A nonwoven fabric fixing device characterized by having a metal protrusion that fits into a groove of a metal rail extending along the longitudinal direction of the mounting surface, which the base has at the end of the base, or a winding portion that is wrapped around a handrail extending in the longitudinal direction provided at the end of the base and fixed to the handrail.

2. The hinge further comprises a first plate and a second plate rotatably connected to the first plate, The mounting portion is the protrusion that fits into the groove of the rail provided on the first plate, The nonwoven fabric fixing device according to claim 1, characterized in that the male hook-and-loop fastener is connected to the second plate.

3. The aforementioned hinge is made of metal. The flexible retainer further comprises a retaining surface that is larger than the engaging surface of the male hook-and-loop fastener and holds the entire surface opposite to the engaging surface, The nonwoven fabric fixing device according to claim 2, characterized in that, in a position where the hinge extends parallel to the first plate, the second plate, and the holding surface, the direction in which the male hook-and-loop fastener is held relative to the holder is the same as the direction in which the protrusion is provided relative to the first plate.

4. The aforementioned mounting portion is The winding portion has a loop portion and a hook portion of the hook fastener and connects to the male hook fastener, The nonwoven fabric fixing device according to claim 1, characterized in that it can be detachably attached to the handrail by wrapping the winding portion around the handrail and engaging the loop portion and the hook portion.

5. Nonwoven fabric and A nonwoven fabric fixing device according to any one of claims 1 to 4 and Equipped with, A subject movement restriction system characterized by fixing at least one end of the nonwoven fabric covering the subject placed on the stand to the nonwoven fabric fixing device, thereby restricting the movement of the subject placed on the stand in the short direction of the surface described above and in the direction perpendicular to the surface described above.

6. A pair of the aforementioned nonwoven fabric fixing devices are provided, One of the pair of nonwoven fabric fixing devices is attached to the base end of one end of the short side of the surface described above. The subject movement restriction system according to claim 5, characterized in that the other of the pair of nonwoven fabric fixing devices is attached to the base end of the other end in the short direction of the mounting surface described above.

Images