Examination bed for bone density measurement

Abstract

The present invention relates to the field of medical equipment, and discloses an examination bed for bone density measurement, comprising a bed body, a guide block, an inclined plate, a fixing mechanism and a driving mechanism. The driving mechanism is arranged to drive two inclined plates to move synchronously in the same direction along the extension line of the V-shaped angle, so that the present invention can adjust the position of the inclined plate according to the position of the patient's feet, and when used in conjunction with the fixing mechanism on the inclined plate, it can ensure that patients of different heights always maintain a standard body position when performing hip joint bone density measurement, thereby ensuring the accuracy of the test results.

Description

Technical Field

[0001] The invention relates to the field of medical equipment, and in particular to an examination bed for bone density measurement. Background Art

[0002] Dual-energy X-ray bone density measurement is the gold standard for diagnosing osteoporosis in the population. It generally measures the bone density values ​​of the L1-L4 lumbar vertebrae and the femoral neck at the hip joint.

[0003] The elderly are prone to osteoporosis, and the lumbar vertebrae of the elderly often have bone hyperplasia, which will affect the diagnosis of bone density. Therefore, in the case of lumbar vertebrae accompanied by bone hyperplasia, the measurement of hip joint bone density is particularly important.

[0004] When measuring hip bone density, the femoral neck at the hip joint needs to be fully exposed. Therefore, during the diagnosis process, the patient maintains a standard posture (lying on his back, with the legs spread apart and the legs internally rotated at a certain angle) to ensure the accuracy of the bone density measurement results.

[0005] In the prior art, an isosceles trapezoidal frame is usually set on the examination bed, and the patient's feet are fixed on the two side surfaces of the isosceles trapezoidal frame by straps, so as to ensure that the patient's body position remains unchanged during the examination; however, when examining patients of different heights, since the isosceles trapezoidal frame is generally fixed on the examination bed, when the patient's feet are fixed on the isosceles trapezoidal frame, the angles of their legs are not the same. Therefore, the above method cannot guarantee the accuracy of the measurement results of patients of different heights. Summary of the invention

[0006] Based on the above problems, the purpose of the present invention is to provide an examination bed for bone density measurement to solve the problems existing in the above prior art.

[0007] The present invention adopts the following technical solution:

[0008] The present invention provides an examination bed for bone density measurement, comprising a bed body and:

[0009] A guide block, the guide block is arranged in the middle of the top surface of the bed, and two side edges of the guide block form a V-shaped angle;

[0010] Inclined plates, the number of the inclined plates is two, the two inclined plates are arranged correspondingly and are respectively located on the extension lines of the V-shaped angle;

[0011] A fixing mechanism, the fixing mechanism is arranged on the inclined plate, and the fixing mechanism is used to fix the patient's foot;

[0012] A driving mechanism is arranged on the bed body, and is used to drive the two inclined plates to move synchronously in the same direction along the extension line of the V-shaped angle.

[0013] Furthermore, the fixing mechanism includes an arc groove movably arranged on the outer side of the inclined plate, an airbag is arranged in the arc groove, and the airbag is connected to the inflation and deflation component; an adjustment component is arranged on the inclined plate, and the action end of the adjustment component is connected to the arc groove.

[0014] Furthermore, the adjustment assembly includes a linear drive component arranged on the inner side of the inclined plate, and a connecting piece is connected to the action end of the linear drive component, and both ends of the connecting piece are respectively connected to the arc groove through the long holes on both sides of the inclined plate.

[0015] Furthermore, the inflation and deflation assembly includes an air intake pipe and an exhaust pipe, the air intake pipe and the exhaust pipe are respectively connected to the airbag through avoidance holes on the arc groove, and the air intake pipe and the exhaust pipe are respectively provided with an inflation valve and an deflation valve; the air intake pipe is connected to a hose, and the end of the hose is connected to an air pump.

[0016] Furthermore, the driving mechanism includes two correspondingly arranged slides, the two slides are respectively slidably connected to the two slide holes on the top surface of the bed, and the two slide holes are respectively located on the extension lines of the V-shaped angle; the top of the slide is connected to the corresponding inclined plate, and the bottom passes through the slide hole and is connected to a movable block 1, and a guide rod is movably passed through the movable block 1, and the two guide rods are respectively arranged in the same direction as the slide hole, and the two ends of the guide rod are respectively connected to the bed;

[0017] A movable block 2 is arranged between the two movable blocks 1, and the movable block 2 is connected to a linear reciprocating component, and the linear reciprocating component drives the movable block 2 to move along the length direction of the bed body; a connecting rod is connected to the movable block 2, and the two ends of the connecting rod respectively move through the corresponding movable block 1, and the axial direction of the connecting rod is perpendicular to the movement direction of the movable block 2.

[0018] Furthermore, the linear reciprocating assembly includes a threaded rod rotatably arranged between the two guide rods, the movable block is threadedly sleeved on the threaded rod, and the axial direction of the threaded rod is the same as the length direction of the bed; a rotating drive component is arranged on the bed through a mounting seat, and the rotating drive component is transmission-connected to the threaded rod through a transmission part.

[0019] Furthermore, the transmission part includes a worm that is dynamically connected to the output shaft of the rotary drive component, one side of the worm is meshingly connected to a worm wheel, and the worm wheel is sleeved on the threaded rod.

[0020] Furthermore, two ends of the worm are rotatably connected to shaft plates respectively, and the shaft plates are connected to the bed body.

[0021] Furthermore, limit plates are respectively provided at both ends of the connecting rod.

[0022] Compared with the prior art, the beneficial technical effects of the present invention are:

[0023] The driving mechanism is arranged to drive the two inclined plates to move synchronously in the same direction along the extension line of the V-shaped angle, so that the position of the inclined plate can be adjusted according to the position of the patient's feet. When used in conjunction with the fixing mechanism on the inclined plate, it can ensure that patients of different heights always maintain a standard body position when performing hip joint bone density measurement, thereby ensuring the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the examination bed for bone density measurement of the present invention;

[0026] Figure 2 It is a three-dimensional structural schematic diagram of the fixing mechanism of the present invention;

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the inflation and deflation assembly of the present invention;

[0028] Figure 4 It is a three-dimensional structural schematic diagram of the driving mechanism of the present invention;

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the transmission part of the present invention;

[0030] Figure 6 It is a schematic diagram of the angle between the inclined plate and the top surface of the bed body of the present invention.

[0031] Description of the reference numerals: 1. bed; 2. guide block; 3. inclined plate; 301. long hole; 4. fixing mechanism; 41. arc groove; 411. avoidance hole; 42. air bag; 43. inflation and deflation assembly; 431. air inlet pipe; 432. exhaust pipe; 433. inflation valve; 434. deflation valve; 435. hose; 436. air pump; 44. adjustment assembly; 441. linear drive component; 442. connector; 5. Driving mechanism; 51. Slide plate; 52. Slide hole; 53. Movable block 1; 54. Guide rod; 55. Mounting plate; 56. Movable block 2; 57. Linear reciprocating assembly; 571. Threaded rod; 572. Mounting seat; 573. Rotary driving component; 574. Transmission part; 5741. Worm; 5742. Worm wheel; 5743. Shaft plate; 58. Connecting rod; 59. Limiting plate; 6. Connecting plate; 7. Scanning arm. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0033] like Figure 1-Figure 6 As shown, this embodiment discloses an examination bed for bone density measurement, including a bed body 1, a guide block 2 is fixed to the middle of the top surface of the bed body 1, and the two sides of the guide block 2 form a V-shaped angle; there are two inclined plates 3, the two inclined plates 3 are correspondingly arranged, and the two inclined plates 3 are respectively located on the extension line of the V-shaped angle; a fixing mechanism 4 is arranged on the inclined plate 3, and the fixing mechanism 4 is used to fix the patient's feet; a driving mechanism 5 is arranged on the bed body 1, and the driving mechanism 5 is used to drive the two inclined plates 3 to move synchronously in the same direction along the extension line of the V-shaped angle.

[0034] In this embodiment, the angle of the V-shaped angle is the angle at which the patient's legs are spread apart when the hip joint bone density is measured. The patient's feet are fixed to the outer surface of the inclined board 3 by the fixing mechanism 4. At this time, the angle of internal rotation of the legs is the internal rotation angle of the standard body position when the hip joint bone density is measured. Specifically, the angle a between the two inclined boards 3 and the top surface of the bed 1 is 65°.

[0035] When the present invention is in use, the patient lies on his back on the top surface of the bed body 1, with his legs spread out along the two sides of the guide block 2. Since the leg lengths of patients of different heights are different, a driving mechanism 5 is provided in the present invention, and the driving mechanism 5 drives the two inclined plates 3 to move synchronously in the same direction along the extension line of the V-shaped angle, so that the present invention can adjust the position of the inclined plate 3 according to the position of the patient's feet. When used in conjunction with the fixing mechanism 4 on the inclined plate 3, it can ensure that patients of different heights always maintain a standard body position when performing hip joint bone density measurement, thereby ensuring the accuracy of the test results.

[0036] According to a further optimization scheme, the fixing mechanism 4 includes an arc groove 41 movably arranged on the outer side of the inclined plate 3, an air bag 42 is arranged in the arc groove 41, and the air bag 42 is connected to the inflation and deflation component 43; an adjustment component 44 is arranged on the inclined plate 3, and the action end of the adjustment component 44 is connected to the arc groove 41.

[0037] In this embodiment, the adjustment component 44 is used to drive the arc groove 41 to move linearly along the outer surface of the inclined plate 3, so that the patient's foot can be located in the area between the arc groove 41 and the inclined plate 3; after the airbag 42 is inflated by the inflation and deflation component 43, the airbag 42 expands, so that the patient's foot can be fixed by the inflated airbag 42.

[0038] According to a further optimization scheme, the adjustment component 44 includes a linear drive component 441 arranged on the inner side of the inclined plate 3, and a connecting member 442 is fixedly connected to the action end of the linear drive component 441, and both ends of the connecting member 442 are respectively connected to the arc groove 41 through the long holes 301 on both sides of the inclined plate 3.

[0039] In this embodiment, the linear drive component 441 is configured as an electric push rod, and the fixed end of the linear drive component 441 is fixedly connected to the inner surface of the inclined plate 3; the connecting member 442 is configured as a gantry structure, and the two ends of the connecting member 442 are respectively fixedly connected to the two ends of the arc groove 41, and the two ends of the connecting member 442 are respectively slidably connected in the long hole 301. The linear drive component 441 drives the connecting member 442 to move, so that the arc groove 41 and the airbag 42 can be driven to move linearly along the outer surface of the inclined plate 3 as a whole.

[0040] A further optimized solution is that the inflation and deflation assembly 43 includes an air intake pipe 431 and an exhaust pipe 432. The air intake pipe 431 and the exhaust pipe 432 are respectively connected to the airbag 42 through the avoidance hole 411 on the arc groove 41, and an inflation valve 433 and a deflation valve 434 are respectively fixedly installed on the air intake pipe 431 and the exhaust pipe 432; a hose 435 is connected to the air intake pipe 431, and the end of the hose 435 is connected to the air pump 436.

[0041] In this embodiment, the air pump 436 is fixedly mounted on the connector 442, and the output end of the air pump 436 is fixedly connected to the air inlet pipe 431 through the hose 435; the air inlet pipe 431 and the exhaust pipe 432 are respectively located on both sides of the arc groove 41, and the bottom of the air inlet pipe 431 and the exhaust pipe 432 are respectively fixedly connected to the two ends of the airbag 42; the hose 435 and the avoidance hole 411 can meet the movement requirements of the air inlet pipe 431 and the exhaust pipe 432 when the airbag 42 is inflated and deflated.

[0042] With this solution, when it is necessary to fix the patient's foot, the inflation valve 433 is opened, the deflation valve 434 is closed, and the air pump 436 is started to inflate the airbag 42. The airbag 42 will expand after being inflated. After the airbag 42 fixes the patient's foot, the inflation valve 433 is closed and the air pump 436 is stopped. When the bone density measurement is completed, the deflation valve 434 is opened to release the gas inside the airbag 42. After the airbag 42 shrinks, the fixation of the patient's foot can be released, and then the linear drive component 441 drives the connecting member 442 to move, so that the patient's foot can be separated from the area surrounded by the arc groove 41 and the inclined plate 3.

[0043] Further optimized solution, the driving mechanism 5 includes two correspondingly arranged slide plates 51, the two slide plates 51 are respectively slidably connected to the two slide holes 52 on the top surface of the bed body 1, and the two slide holes 52 are respectively located on the extension line of the V-shaped angle; the top of the slide plate 51 is fixedly connected to the corresponding inclined plate 3, the bottom of the slide plate 51 passes through the slide hole 52 and is fixedly connected with a movable block 1 53, and a guide rod 54 is movably passed through the movable block 1 53, and the two guide rods 54 are respectively arranged in the same direction as the slide hole 52, and the two ends of the guide rod 54 are respectively fixedly connected to the bed body 1 through the mounting plate 55;

[0044] A movable block 2 56 is arranged between the two movable blocks 1 53 , and the movable block 2 56 is connected to a linear reciprocating assembly 57 , and the linear reciprocating assembly 57 drives the movable block 2 56 to move along the length direction of the bed body 1 ; a connecting rod 58 is connected to the movable block 2 56 , and both ends of the connecting rod 58 are movable and penetrate the corresponding movable block 1 53 , and the axial direction of the connecting rod 58 is perpendicular to the movement direction of the movable block 2 56 .

[0045] In this embodiment, through holes are provided on both the movable block 2 56 and the movable block 1 53, and the connecting rod 58 horizontally penetrates the movable block 2 56 and the movable block 1 53 through the through holes. The connecting rod 58 and the movable block 2 56 are fixedly connected, and the connecting rod 58 and the movable block 1 53 are slidably connected; both ends of the connecting rod 58 are fixedly connected to the limiting plate 59, and the setting of the limiting plate 59 can prevent the connecting rod 58 from escaping from the through hole on the movable block 1 53.

[0046] By adopting this scheme, the linear reciprocating component 57 is set to drive the movable block 2 56 to move linearly along the length direction of the bed body 1. Under the joint action of the connecting rod 58 and the guide rod 54, the two movable blocks 1 53 can move synchronously in the same direction along the axial direction of the guide rod 54, so that under the action of the slide plate 51 and the slide hole 52, the two inclined plates 3 can move synchronously in the same direction along the extension line of the V-shaped angle.

[0047] A further optimized solution is that the linear reciprocating assembly 57 includes a threaded rod 571 rotatably arranged between two guide rods 54, and the movable block 2 56 is threadedly sleeved on the threaded rod 571, and the axial direction of the threaded rod 571 is the same as the length direction of the bed body 1; a rotating drive component 573 is arranged on the bed body 1 through a mounting seat 572, and the rotating drive component 573 is transmission-connected to the threaded rod 571 through a transmission part 574.

[0048] In this embodiment, the rotation driving component 573 is configured as a servo motor, and the fixed end of the rotation driving component 573 is fixed on the mounting seat 572, and the mounting seat 572 is fixed on the bed body 1. Through the rotation driving component 573, under the action of the transmission part 574, the threaded rod 571 can be rotated clockwise or counterclockwise, thereby driving the movable block 2 56 to perform a linear reciprocating motion along the axis direction of the threaded rod 571.

[0049] According to a further optimized solution, the transmission part 574 includes a worm 5741 which is connected to the output shaft power of the rotating driving component 573 , and a worm wheel 5742 is meshingly connected to one side of the worm 5741 , and the worm wheel 5742 is fixedly mounted on the threaded rod 571 .

[0050] In this embodiment, the two ends of the worm 5741 are rotatably connected to the shaft plate 5743, and the shaft plate 5743 is fixedly connected to the bed body 1. By rotating the driving component 573 to drive the worm 5741 to rotate, the worm 5741 drives the worm wheel 5742 to rotate, and the effect of driving the threaded rod 571 to rotate can be achieved. By utilizing the self-locking property of the worm wheel 5742 and the worm 5741 when they are engaged and connected, the stability of the movable block 2 56 after the position adjustment can be ensured, thereby ensuring the stability of the movable block 1 53, the slide plate 51 and the inclined plate 3.

[0051] In a further optimized solution, a horizontally arranged connecting plate 6 is fixed between two side walls of the bed 1, and the connecting plate 6 is located below the top surface of the bed 1. In this embodiment, the connecting plate 6 is used to install a scanning arm 7 of a dual-energy X-ray.

[0052] It should be noted that the scanning arm 7 is a prior art, and its working principle and usage are well known and will not be described in detail here.

[0053] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An examination bed for bone density measurement, comprising a bed body (1), characterized in that: Also includes: A guide block (2), the guide block (2) being arranged at the middle of the top surface of the bed body (1), and two side edges of the guide block (2) forming a V-shaped angle; Inclined plates (3), the number of the inclined plates (3) being two, the two inclined plates (3) being arranged correspondingly and respectively located on the extension lines of the V-shaped angle; A fixing mechanism (4), the fixing mechanism (4) being arranged on the inclined plate (3), and the fixing mechanism (4) being used to fix the patient's foot; A driving mechanism (5), the driving mechanism (5) being arranged on the bed body (1), and being used to drive the two inclined plates (3) to move synchronously in the same direction along an extension line of the V-shaped angle; The driving mechanism (5) comprises two correspondingly arranged slide plates (51), the two slide plates (51) are respectively slidably connected to two slide holes (52) on the top surface of the bed body (1), and the two slide holes (52) are respectively located on the extension lines of the V-shaped angle; the top of the slide plate (51) is connected to the corresponding inclined plate (3), and the bottom passes through the slide hole (52) and is connected to a movable block 1 (53), and a guide rod (54) is movably passed through the movable block 1 (53), and the two guide rods (54) are respectively arranged in the same direction as the slide hole (52), and the two ends of the guide rod (54) are respectively connected to the bed body (1); A movable block 2 (56) is arranged between the two movable blocks 1 (53), and the movable block 2 (56) is connected to a linear reciprocating component (57), and the linear reciprocating component (57) drives the movable block 2 (56) to move along the length direction of the bed body (1); a connecting rod (58) is connected to the movable block 2 (56), and both ends of the connecting rod (58) are respectively movable and penetrate the corresponding movable block 1 (53), and the axial direction of the connecting rod (58) is perpendicular to the movement direction of the movable block 2 (56).

2. The examination bed for bone density measurement according to claim 1, characterized in that: The fixing mechanism (4) comprises an arc-shaped groove (41) movably arranged on the outside of the inclined plate (3), an air bag (42) being arranged in the arc-shaped groove (41), and the air bag (42) being connected to an inflation and deflation assembly (43); an adjustment assembly (44) is arranged on the inclined plate (3), and an action end of the adjustment assembly (44) is connected to the arc-shaped groove (41).

3. The examination bed for bone density measurement according to claim 2, characterized in that: The adjustment assembly (44) comprises a linear drive component (441) arranged on the inner side of the inclined plate (3); a connecting piece (442) is connected to the action end of the linear drive component (441); and two ends of the connecting piece (442) are respectively connected to the arc-shaped groove (41) through long holes (301) on both sides of the inclined plate (3).

4. The examination bed for bone density measurement according to claim 2, characterized in that: The inflation and deflation assembly (43) comprises an air intake pipe (431) and an exhaust pipe (432); the air intake pipe (431) and the exhaust pipe (432) are respectively connected to the air bag (42) via avoidance holes (411) on the arc-shaped groove (41); and an inflation valve (433) and an deflation valve (434) are respectively provided on the air intake pipe (431) and the exhaust pipe (432); the air intake pipe (431) is connected to a hose (435); the end of the hose (435) is connected to an air pump (436).

5. The examination bed for bone density measurement according to claim 1, characterized in that: The linear reciprocating assembly (57) comprises a threaded rod (571) rotatably arranged between the two guide rods (54); the movable block 2 (56) is threadably sleeved on the threaded rod (571); and the axial direction of the threaded rod (571) is the same as the length direction of the bed body (1); a rotation driving component (573) is arranged on the bed body (1) via a mounting seat (572); and the rotation driving component (573) is transmission-connected to the threaded rod (571) via a transmission part (574).

6. The examination bed for bone density measurement according to claim 5, characterized in that: The transmission part (574) comprises a worm (5741) which is dynamically connected to the output shaft of the rotation driving component (573); one side of the worm (5741) is meshingly connected to a worm wheel (5742); and the worm wheel (5742) is sleeved on the threaded rod (571).

7. The examination bed for bone density measurement according to claim 6, characterized in that: The two ends of the worm (5741) are respectively rotatably connected to an axis plate (5743), and the axis plate (5743) is connected to the bed body (1).

8. The examination bed for bone density measurement according to claim 1, characterized in that: Limiting plates (59) are respectively provided at both ends of the connecting rod (58).

Images