Lower limb fixing device

Abstract

The utility model relates to a lower limb fixing device which comprises a base unit, a first supporting unit, a second supporting unit, a third supporting unit, a fixing unit, an air bag unit and a control unit. The device has the advantages that the base unit is connected with the operating bed, and the stability is improved by means of the weight of the operating bed; the lower limbs of the patient are supported and fixed through the fixing unit; the air bag unit is used for correspondingly adjusting the inflation volume according to the physiques of different patients so as to fix the lower limbs of the patients, fixation is firmer and more comfortable, and the problem that the lower limbs of the patients are not firmly fixed is solved; the first supporting unit, the second supporting unit and the third supporting unit are used in cooperation, the angle and height of the lower limbs of a patient can be adjusted, the lower limbs of the patient can be freely moved and rotated, accurate control and adjustment can be achieved, operation is easy and easy, manpower is saved, control is more accurate, and smooth operation is guaranteed; the problem that the posture of the lower limbs of the patient cannot be accurately adjusted is solved.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a lower limb fixation device used for lower limb posture adjustment in hip replacement surgery. Background Art

[0002] Hip replacement surgery is a common orthopedic procedure used to treat hip joint problems caused by disease, injury, or degeneration. During surgery, to ensure accuracy and success, surgeons must precisely adjust and immobilize the patient's lower limbs. Traditional lower limb immobilization devices typically include components such as braces, clamps, and straps, but these devices present several challenges during use.

[0003] First, existing lower limb immobilization devices have certain deficiencies in stability. Because the patient's lower limbs need to be adjusted at multiple angles during surgery, traditional immobilization devices often lack sufficient support, causing the patient to shake or shift during surgery, thus affecting the accuracy and safety of the surgery.

[0004] Secondly, some devices fail to fully consider the individual differences of patients when fixing the lower limbs, and the patient's lower limbs are not firmly fixed, which makes adjustments during the operation difficult, increases the operation time and surgical risks.

[0005] Furthermore, hip replacements often require continuous intraoperative adjustments to the affected limb's position, including external and internal rotation. Some devices cannot automatically adjust, often requiring an assistant to manually secure or adjust the position. This is not only fatigue-prone and difficult to maintain for extended periods, but also manual adjustments cannot achieve precise angles and positions, easily causing shaking and increasing surgical risks.

[0006] There is no effective solution to the problems existing in the related art, such as insufficient stability of the lower limb fixation device, loose fixation of the patient's lower limbs, and inability to accurately adjust the posture of the patient's lower limbs. Utility Model Content

[0007] The purpose of the utility model is to provide a lower limb fixation device to address the deficiencies in the existing technology, so as to solve the problems existing in the related technology such as insufficient stability of the lower limb fixation device, loose fixation of the patient's lower limbs, and inability to accurately adjust the posture of the patient's lower limbs.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0009] A lower limb fixation device for adjusting the posture of the lower limbs during hip replacement surgery, comprising:

[0010] a base unit, the base unit being removably disposed on a side of the operating table;

[0011] a first supporting unit, the first supporting unit being arranged on a side of the base unit, a first end of the first supporting unit being connected to the base unit, and being used to support the patient's lower limbs in a horizontal direction;

[0012] a second supporting unit, wherein a first end of the second supporting unit is rotatably connected to a second end of the first supporting unit and is used for performing a first angle adjustment on the patient's lower limb;

[0013] a third support unit, wherein a first end of the third support unit is rotatably connected to a second end of the second support unit, and is used to perform a second angle adjustment on the patient's lower limb, wherein a direction of the second angle adjustment is the same as or different from a direction of the first angle adjustment;

[0014] a fixing unit, wherein the bottom end of the fixing unit is connected to the second end of the third supporting unit and is used to fix the patient's lower limb;

[0015] an airbag unit, the airbag unit being arranged on the fixing unit and being used for inflating to fix the patient's lower limbs;

[0016] A control unit is provided on the base unit and is connected to the second support unit and the airbag unit respectively.

[0017] In some of these embodiments, the base unit comprises:

[0018] a first base element removably disposed on a side of the operating table;

[0019] at least one first mounting element, the first mounting element being disposed on the first base element and connected to the operating table for fixing the first base element;

[0020] A first connecting element is provided on the first base element and connected to the first end of the first supporting unit.

[0021] In some of these embodiments, the base unit further comprises:

[0022] a chamber element disposed on a first side of the first base element;

[0023] a first clamping element, the first clamping element being movably disposed on the chamber element, being slidably connected to the first base element, and abutting against the top of the operating table;

[0024] at least one elastic element, the elastic element being disposed in the chamber element, a first end of the elastic element being connected to the first base element, and a second end of the elastic element being connected to the first clamping element;

[0025] A second clamping element is provided on the second side of the first base element and abuts against the bottom of the operating bed.

[0026] In some of these embodiments, the base unit further comprises:

[0027] An anti-slip element is provided on a side of the first base element, and is used to prevent the first base element from sliding relative to the operating bed.

[0028] In some embodiments, the first support unit includes:

[0029] a first supporting element, the first supporting element being provided at a side of the base unit and being used to support the patient's lower limbs in a horizontal direction;

[0030] a second connecting element, the second connecting element being disposed at a first end of the first supporting element and connected to the base unit;

[0031] A first rotating element is provided at the second end of the first supporting element and is rotatably connected to the second supporting unit.

[0032] In some embodiments, the first support unit further includes:

[0033] A first driving element is provided on a side of the base unit and is connected to the first supporting element and the control unit respectively, and is used to drive the first supporting element to rotate.

[0034] In some embodiments, the second support unit includes:

[0035] a second supporting element, the second supporting element being disposed at a second end of the first supporting unit and being used for performing a first angle adjustment on the patient's lower limb;

[0036] a second rotating element, the second rotating element being disposed at a first end of the second supporting element and being rotatably connected to the first supporting unit;

[0037] A third rotating element is provided at the second end of the second supporting element and is rotatably connected to the third supporting unit.

[0038] In some embodiments, the second support unit further includes:

[0039] The second driving element is provided at an end of the second rotating element and is connected to the control unit, and is used for driving the second rotating element to rotate relative to the first supporting unit.

[0040] In some embodiments, the third support unit includes:

[0041] a third supporting element, the third supporting element being provided at the second end of the second supporting unit and being used for performing a second angle adjustment on the patient's lower limb;

[0042] a fourth rotating element, the fourth rotating element being disposed at the first end of the third supporting element and being rotatably connected to the second end of the second supporting unit;

[0043] A second base element is provided at the second end of the third supporting element and is connected to the fixing unit.

[0044] In some embodiments, the third support unit further includes:

[0045] A third driving element is provided at an end of the fourth rotating element and is connected to the control unit, and is used for driving the fourth rotating element to rotate relative to the second supporting unit.

[0046] In some embodiments, the fixing unit includes:

[0047] a third base element, wherein a bottom end of the third base unit is connected to the second end of the third support unit;

[0048] a fourth supporting element, the fourth supporting element being arranged in an arc shape and being located at the second end of the third base element, for supporting the patient's lower limbs at a bottom end;

[0049] A channel element is provided, wherein the channel element passes through the fourth supporting element, and the airbag unit is provided inside the channel element.

[0050] In some embodiments, the fixing unit further comprises:

[0051] at least one first fixing element, wherein a first end of the first fixing element is disposed on a first side of the fourth supporting element, and is used to fix the patient's lower limb to the fourth supporting element;

[0052] At least one second fixing element is arranged on the second side of the fourth supporting element and is detachably connected to the first fixing element, and is used to cooperate with the first fixing element to fix the patient's lower limb to the fourth supporting element.

[0053] In some embodiments, the airbag unit includes:

[0054] An airbag component is provided on the inner edge surface of the fixing unit, and fixes the patient's lower limbs by inflation and releases the fixation of the patient's lower limbs by deflation;

[0055] a gas delivery element, the gas delivery element being disposed on the fixing unit, wherein a first end of the gas delivery element is in communication with the airbag element and is configured to deliver gas to the airbag element;

[0056] A fourth driving element is provided on the fixing unit and is communicated with the second end of the gas delivery element and connected to the control unit, and is used for inflating or deflating the airbag element.

[0057] In some embodiments, the airbag unit further comprises:

[0058] An air pressure monitoring element is provided in the airbag element and is connected to the control unit for monitoring the pressure of the gas in the airbag element.

[0059] In some embodiments, the control unit includes:

[0060] a control element, the control element being disposed on the base unit and connected to the first support unit, the second support unit, the third support unit, and the airbag unit respectively;

[0061] a communication element, the communication element being disposed on the base unit and connected to the control element for information transmission;

[0062] a manipulation element, the manipulation element being disposed on the base unit and connected to the control element, and being used to manipulate the first support unit, the second support unit, the third support unit, and the airbag unit;

[0063] A power supply element is provided on the base unit and connected to the control element for supplying power.

[0064] In some embodiments, the lower limb fixation device further comprises:

[0065] A display unit is provided on the base unit and connected to the control unit, and is used to display the angles of the first support unit, the second support unit, the third support unit and the parameters of the airbag unit.

[0066] In some embodiments, the lower limb fixation device further comprises:

[0067] At least one adjusting unit is provided at the second end of the third supporting unit and is connected to the fixing unit and the control unit respectively, for adjusting the angle of the fixing unit.

[0068] In some embodiments, the adjusting unit includes:

[0069] a hydraulic adjustment element, the hydraulic adjustment element being disposed between the third support unit and the fixing unit and connected to the control unit, for adjusting the angle of the fixing unit;

[0070] a second mounting element, the second mounting element being disposed at a first end of the hydraulic adjustment element and connected to the third supporting unit;

[0071] a third mounting element, the third mounting element being disposed at the second end of the hydraulic adjustment element and connected to the fixing unit;

[0072] A shell element is provided at the second end of the third supporting unit, wherein the first ends of the plurality of hydraulic adjustment elements are located inside the shell element and the second ends of the hydraulic adjustment elements are located outside the shell element.

[0073] The present invention adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0074] The utility model provides a lower limb fixation device, which utilizes a base unit to be connected to an operating table, and increases stability by utilizing the weight of the operating table; utilizes a fixing unit to support and fix the patient's lower limbs; and utilizes an airbag unit to adjust the inflation volume according to the physique of different patients to fix the patient's lower limbs, so that the fixation is more firm and comfortable, and solves the problem of loose fixation of the patient's lower limbs; utilizes a first supporting unit, a second supporting unit, and a third supporting unit to be used in conjunction with each other, which can not only adjust the angle and height of the patient's lower limbs, freely move and rotate the patient's lower limbs, but also realize precise control and adjustment, is simple and easy to operate, saves manpower, and makes control more precise, thereby ensuring the smooth progress of the operation and solving the problem of not being able to accurately adjust the posture of the patient's lower limbs. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] Figure 1 is a schematic diagram of a lower limb fixation device according to an embodiment of the present utility model (1);

[0076] Figure 2 is a schematic diagram of a base unit according to an embodiment of the present utility model (1);

[0077] Figure 3 is a schematic diagram of a first supporting unit according to an embodiment of the present utility model;

[0078] Figure 4 is a schematic diagram of a second supporting unit according to an embodiment of the present utility model;

[0079] Figure 5 is a schematic diagram of a third supporting unit according to an embodiment of the present utility model;

[0080] Figure 6 is a schematic diagram of a fixing unit according to an embodiment of the present utility model;

[0081] Figure 7 is a schematic diagram of an airbag unit according to an embodiment of the present utility model;

[0082] Figure 8 is a schematic diagram of a control unit according to an embodiment of the present utility model;

[0083] Figure 9 is a schematic diagram of a base unit according to an embodiment of the present utility model (2);

[0084] Figure 10 is a schematic diagram of a lower limb fixation device according to an embodiment of the present utility model (II);

[0085] Figure 11 is a schematic diagram of a lower limb fixation device according to an embodiment of the present utility model (III);

[0086] Figure 12 Schematic diagram of an adjustment unit according to an embodiment of the present invention.

[0087] The accompanying drawings are as follows:

[0088] 10. Base unit; 11. First base element; 12. First mounting element; 13. First connecting element; 14. Chamber element; 15. First clamping element; 16. Elastic element; 17. Second clamping element; 18. Anti-slip element;

[0089] 20. First support unit; 21. First support element; 22. Second connecting element; 23. First rotating element; 24. First driving element;

[0090] 30. Second supporting unit; 31. Second supporting element; 32. Second rotating element; 33. Third rotating element; 34. Second driving element;

[0091] 40. Third supporting unit; 41. Third supporting element; 42. Fourth rotating element; 43. Second base element; 44. Third driving element;

[0092] 50. Fixing unit; 51. Third base element; 52. Fourth supporting element; 53. Channel element; 54. First fixing element; 55. Second fixing element;

[0093] 60. Airbag unit; 61. Airbag component; 62. Gas delivery component; 63. Fourth drive component; 64. Air pressure monitoring component;

[0094] 70. Control unit; 71. Control element; 72. Communication element; 73. Control element; 74. Power supply element;

[0095] 80. Display unit;

[0096] 90. Adjustment unit; 91. Hydraulic adjustment element; 92. Second mounting element; 93. Third mounting element; 94. Housing element. DETAILED DESCRIPTION

[0097] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is described and illustrated below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application. Based on the embodiments provided in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of this application.

[0098] Obviously, the drawings described below are merely examples or embodiments of the present application. Those skilled in the art can, without inventive effort, apply the present application to other similar scenarios based on these drawings. Furthermore, it is also understood that, although the effort involved in such a development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, changes in design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as an insufficiency of the content disclosed in this application.

[0099] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it refer to independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments unless there is a conflict.

[0100] Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by persons of ordinary skill in the art to which this application belongs. The terms "a," "an," "an," "the," and similar expressions used herein do not denote limitations on quantity and may refer to either the singular or the plural. The terms "comprise," "include," "have," and any variations thereof, used herein, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements (units) is not limited to the listed steps or elements but may also include steps or elements not listed, or may include other steps or elements inherent to the process, method, product, or apparatus. The terms "connected," "connected," "coupled," and similar expressions used herein are not limited to physical or mechanical connections but may include electrical connections, whether direct or indirect. As used herein, "plurality" means two or more. "And / or" describes an association between associated objects, indicating that three possible relationships exist. For example, "A and / or B" may mean: A exists alone; A and B exist simultaneously; or B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific order for the objects.

[0101] Example 1

[0102] An illustrative embodiment of the present invention is as follows: Figure 1 As shown, a lower limb fixation device is used for adjusting the posture of the lower limbs in hip replacement surgery, including a base unit 10, a first support unit 20, a second support unit 30, a third support unit 40, a fixation unit 50, an airbag unit 60 and a control unit 70. Among them, the base unit 10 is removably arranged on the side of the operating bed; the first support unit 20 is arranged on the side of the base unit 10, and the first end of the first support unit 20 is connected to the base unit 10, for supporting the patient's lower limbs in the horizontal direction; the first end of the second support unit 30 is rotatably connected to the second end of the first support unit 20, for performing a first angle adjustment on the patient's lower limbs; the first end of the third support unit 40 is rotatably connected to the second end of the second support unit 30, for performing a second angle adjustment on the patient's lower limbs, wherein the direction of the second angle adjustment is the same as or different from the direction of the first angle adjustment; the bottom end of the fixing unit 50 is connected to the second end of the third support unit 40, for fixing the patient's lower limbs; the airbag unit 60 is arranged on the fixing unit 50, for inflating to fix the patient's lower limbs; the control unit 70 is arranged on the base unit 10, and is respectively connected to the second support unit 30 and the airbag unit 60.

[0103] like Figure 2As shown, the base unit 10 includes a first base element 11, at least one first mounting element 12, and a first connecting element 13. The first base element 11 is removably mounted on the side of the operating table; the first mounting element 12 is mounted on the first base element 11 and connected to the operating table to secure the first base element 11; and the first connecting element 13 is mounted on the first base element 11 and connected to the first end of the first support unit 20.

[0104] In some embodiments, the first base element 11 is a first connecting base.

[0105] The dimensions of the first mounting element 12 match those of the first base element 11. Generally, the radial dimensions (e.g., outer diameter) of the first mounting element 12 are smaller than the radial dimensions (e.g., length and width) of the first base element 11, and the depth of the first mounting element 12 is equal to the thickness of the first base element 11.

[0106] In some embodiments, there are multiple first mounting elements 12. The multiple first mounting elements 12 are distributed on the side of the first base element 11. Generally, the multiple first mounting elements 12 are distributed in an array.

[0107] In some embodiments, the first mounting element 12 is a first mounting hole or a first mounting bolt.

[0108] The size of the first connecting element 13 matches the size of the first base element 11. Generally, the radial size (such as the outer diameter) of the first connecting element 13 is smaller than the radial size (such as the length and width) of the first base element 11.

[0109] In some embodiments, the first connecting element 13 is a first connecting hole, a first connecting seat, or a first connecting screw.

[0110] like Figure 3 As shown, the first support unit 20 includes a first support element 21, a second connecting element 22, and a first rotating element 23. The first support element 21 is provided on the side of the base unit 10 for horizontally supporting the patient's lower limbs; the second connecting element 22 is provided at a first end of the first support element 21 and is connected to the base unit 10; and the first rotating element 23 is provided at a second end of the first support element 21 and is rotatably connected to the second support unit 30.

[0111] Specifically, the first supporting element 21 is disposed on a side of the first connecting element 13 ; and the second connecting element 22 is connected to the first connecting element 13 .

[0112] In some embodiments, the first supporting element 21 is a first supporting rod.

[0113] The second connecting element 22 is connected to the first connecting element 13 in a detachable manner, wherein the detachable connection manner includes but is not limited to a flange connection.

[0114] The second connecting element 22 is connected to the first supporting element 21 by a fixed connection, wherein the fixing method includes but is not limited to integral molding and welding.

[0115] In some embodiments, the second connecting element 22 is a second connecting hole, a second connecting seat, or a second connecting screw.

[0116] The first rotating element 23 is connected to the first supporting element 21 by a fixed connection, wherein the fixing method includes but is not limited to integral molding.

[0117] In some embodiments, the first rotating element 23 is a first rotating groove.

[0118] Furthermore, the first support unit 20 further includes a first driving element 24. The first driving element 24 is disposed on the side of the base unit 10 and is connected to the first support element 21 and the control unit 70 respectively, for driving the first support element 21 to rotate.

[0119] Specifically, the first driving element 24 is connected to the first base element 11 and is in transmission connection with the first supporting element 21 .

[0120] The first driving element 24 drives the first supporting element 21 to rotate along the circumferential direction of the first supporting element 21 .

[0121] The first driving element 24 is connected to the first base element 11 in a detachable connection, wherein the detachable connection includes but is not limited to a flange connection.

[0122] In some embodiments, the first driving element 24 is a first motor.

[0123] like Figure 4 As shown, the second support unit 30 includes a second support element 31, a second rotating element 32, and a third rotating element 33. The second support element 31 is disposed at the second end of the first support unit 20 and is used to perform a first angle adjustment on the patient's lower limb; the second rotating element 32 is disposed at the first end of the second support element 31 and is rotatably connected to the first support unit 20; and the third rotating element 33 is disposed at the second end of the second support element 31 and is rotatably connected to the third support unit 40.

[0124] Specifically, the second supporting element 31 is disposed at the second end of the first supporting element 21 ; and the second rotating element 32 is rotatably connected to the first rotating element 23 .

[0125] In some embodiments, the length of the second supporting element 31 may be fixed or adjustable.

[0126] In some embodiments, the second supporting element 31 is a second supporting rod or a first hydraulic push rod.

[0127] The second rotating element 32 and the second supporting element 31 are connected in a fixed manner, wherein the fixing manner includes but is not limited to integral molding and welding.

[0128] The size of the second rotating element 32 matches the size of the first rotating element 23. Generally, the radial dimension (e.g., outer diameter) of the connecting end of the second rotating element 32 is equal to the radial dimension (e.g., inner diameter) of the connecting end of the first rotating element 23, and the length of the second rotating element 32 is greater than the length of the first rotating element 23.

[0129] In some embodiments, the second rotating element 32 is a first rotating shaft.

[0130] The third rotating element 33 is connected to the second supporting element 31 by a fixed connection, wherein the fixing method includes but is not limited to integral molding and welding.

[0131] In some embodiments, the third rotating element 33 is a second rotating groove.

[0132] Furthermore, the second support unit 30 further includes a second driving element 34 , which is disposed at an end of the second rotating element 32 and connected to the control unit 70 , for driving the second rotating element 32 to rotate relative to the first support unit 20 .

[0133] Specifically, the second driving element 34 is detachably connected to the end of the first rotating element 23 and is transmission-connected to the second rotating element 32 .

[0134] In some embodiments, the second driving element 34 is a second motor.

[0135] like Figure 5 As shown, the third support unit 40 includes a third support element 41, a fourth rotation element 42, and a second base element 43. The third support element 41 is disposed at the second end of the second support unit 30 and is used to perform a second angle adjustment on the patient's lower limb. The fourth rotation element 42 is disposed at the first end of the third support element 41 and is rotationally connected to the second end of the second support unit 30. The second base element 43 is disposed at the second end of the third support element 41 and is connected to the fixing unit 50.

[0136] Specifically, the third supporting element 41 is disposed at the second end of the second supporting element 31 ; and the fourth rotating element 42 is rotatably connected to the third rotating element 33 .

[0137] In some embodiments, the third supporting element 41 is a third supporting rod.

[0138] The fourth rotating element 42 is connected to the third supporting element 41 by a fixed connection, wherein the fixing method includes but is not limited to integral molding and welding.

[0139] The dimensions of the fourth rotating element 42 match those of the third rotating element 33. Generally, the radial dimension (e.g., outer diameter) of the connecting end of the fourth rotating element 42 is equal to the radial dimension (e.g., inner diameter) of the connecting end of the third rotating element 33, and the length of the fourth rotating element 42 is greater than the length of the third rotating element 33.

[0140] In some embodiments, the fourth rotating element 42 is a second rotating shaft.

[0141] The second base element 43 and the third support element 41 are connected in a fixed manner, wherein the fixing manner includes but is not limited to integral molding and welding.

[0142] The size of the second base element 43 matches the size of the third support element 41. Generally, the radial size (such as outer diameter, length, width) of the second base element 43 is not less than the radial size (such as outer diameter, length, width) of the third support element 41.

[0143] In some embodiments, the second base element 43 is a second connecting seat.

[0144] Furthermore, the third support unit 40 further includes a third driving element 44 . The third driving element 44 is disposed at an end of the fourth rotating element 42 and connected to the control unit 70 , for driving the fourth rotating element 42 to rotate relative to the second support unit 30 .

[0145] Specifically, the third driving element 44 is detachably connected to the third rotating element 33 and is transmission-connected to the fourth rotating element 42 .

[0146] In some embodiments, the third driving element 44 is a third motor.

[0147] like Figure 6 As shown, the fixing unit 50 includes a third base element 51, a fourth support element 52, and a channel element 53. The bottom end of the third base element 10 is connected to the second end of the third support element 40; the fourth support element 52 is arranged in an arc shape and is located at the second end of the third base element 51, and is used to support the patient's lower limb at the bottom end; the channel element 53 is arranged through the fourth support element 52, and the airbag unit 60 is disposed inside the channel element 53.

[0148] Specifically, the third base element 51 is connected to the second base element 43 .

[0149] The third base element 51 and the second base element 43 are connected in a detachable manner, wherein the detachable connection manner includes but is not limited to a flange connection.

[0150] The dimensions of the third base element 51 match those of the second base element 43. Generally, the radial dimensions (such as outer diameter, length, width) of the third base element 51 are not less than the radial dimensions (such as outer diameter, length, width) of the second base element 43.

[0151] In some embodiments, the third base element 51 is a third connecting seat.

[0152] The fourth support element 52 and the third base element 51 are connected in a fixed connection or a detachable connection. The fixed connection includes but is not limited to welding; the detachable connection includes but is not limited to flange connection.

[0153] The dimensions of the fourth support element 52 match those of the third base element 51. Generally, the radial dimensions (e.g., outer diameter) of the fourth support element 52 are greater than the radial dimensions (e.g., outer diameter, length, width) of the third base element 51, and the axial dimensions (e.g., length) of the fourth support element 52 are greater than the axial dimensions (e.g., length) of the third base element 51.

[0154] The angle of the arc formed by the cross section of the fourth supporting element 52 is A, wherein 90°<A≤180°.

[0155] In some embodiments, the fourth supporting element 52 is a supporting groove or a supporting plate.

[0156] The size of the channel element 53 matches the size of the fourth support element 52. Generally, the radial size (such as the outer diameter) of the channel element 53 is smaller than the radial size of the fourth support element 52.

[0157] In some embodiments, the channel element 53 is a through hole.

[0158] Furthermore, the fixing unit 50 includes at least one first fixing element 54 and at least one second fixing element 55. The first end of the first fixing element 54 is disposed on a first side of the fourth support element 52 for fixing the patient's lower limb to the fourth support element 52; the second fixing element 55 is disposed on a second side of the fourth support element 52 and is detachably connected to the first fixing element 54 for cooperating with the first fixing element 54 to fix the patient's lower limb to the fourth support element 52.

[0159] The first fixing element 54 and the fourth supporting element 52 are connected by a fixed connection, wherein the fixed connection includes but is not limited to a rivet connection.

[0160] The size of the first fixing element 54 matches the size of the fourth supporting element 52. Generally, the width of the first fixing element 54 is smaller than the length of the fourth supporting element 52, and the length of the first fixing element 54 is not less than the arc length of the cross section of the fourth supporting element 52.

[0161] In some embodiments, there are multiple first fixing elements 54 , which are spaced apart along the length of the fourth supporting element 52 .

[0162] In some embodiments, the first fixing element 54 is a first buckle strap, a first Velcro hook surface, or a first Velcro loop surface.

[0163] The second fixing element 55 and the fourth supporting element 52 are connected by a fixed connection, wherein the fixed connection includes but is not limited to a rivet connection.

[0164] The second fixing element 55 is connected to the first fixing element 54 in a detachable manner, wherein the detachable connection manner includes but is not limited to a snap connection and a Velcro connection.

[0165] The size of the second fixing element 55 matches the size of the fourth supporting element 52. Generally, the width of the second fixing element 55 is smaller than the length of the fourth supporting element 52, and the length of the second fixing element 55 is not greater than the arc length of the cross section of the fourth supporting element 52.

[0166] The size of the second fixing element 55 matches the size of the first fixing element 54. Generally, the radial size (such as length and width) of the second fixing element 55 is not less than the radial size (such as length and width) of the first fixing element 54.

[0167] The number of the second fixing elements 55 matches the number of the first fixing elements 54. Generally, the number of the second fixing elements 55 is equal to the number of the first fixing elements 54.

[0168] In some embodiments, there are multiple second fixing elements 55 , which are spaced apart along the length of the fourth supporting element 52 .

[0169] In some embodiments, the second fixing element 55 is a second buckle strap, a second Velcro hook surface, or a second Velcro loop surface.

[0170] In some embodiments, when the second fixing element 55 is a second Velcro hook surface, the number of the second fixing element 55 may be one.

[0171] like Figure 7 As shown, the airbag unit 60 includes an airbag element 61, a gas delivery element 62, and a fourth drive element 63. The airbag element 61 is disposed on the inner edge of the fixation unit 50 and fixes the patient's lower limb by inflation and releases the fixation of the patient's lower limb by deflation. The gas delivery element 62 is disposed on the fixation unit 50, with a first end of the gas delivery element 62 communicating with the airbag element 61 for delivering gas to the airbag element 61. The fourth drive element 63 is disposed on the fixation unit 50 and communicates with a second end of the gas delivery element 62. It is also connected to the control unit 70 and is used to inflate or deflate the airbag element 61.

[0172] Specifically, the airbag element 61 is disposed on the inner edge of the fourth supporting element 52 ; and the gas delivery element 62 is disposed on the channel element 53 .

[0173] The airbag element 61 and the fourth support element 52 are connected by fixed connection, wherein the fixed connection method includes but is not limited to adhesive connection.

[0174] The dimensions of the airbag element 61 match those of the fourth support element 52. Generally, the radial dimension of the cross-section of the airbag element 61 (e.g., outer diameter) is equal to the radial dimension of the cross-section of the fourth support element 52 (e.g., inner diameter), the arc length of the cross-section of the airbag element 61 is no greater than the arc length of the cross-section of the fourth support element 52, and the length of the airbag element 61 is equal to the length of the fourth support element 52.

[0175] In some embodiments, the airbag component 61 is an airbag.

[0176] The gas delivery element 62 and the airbag element 61 are connected in a fixed connection or a detachable connection. The fixed connection includes but is not limited to integral molding and adhesive connection; the detachable connection includes but is not limited to threaded connection.

[0177] The size of the gas delivery element 62 matches the size of the channel element 53. Generally, the radial size (such as the outer diameter) of the gas delivery element 62 is smaller than the radial size (such as the inner diameter) of the channel element 53, and the length of the gas delivery element 62 is greater than the length of the channel element 53.

[0178] In some embodiments, the gas delivery element 62 is a gas delivery tube.

[0179] In some embodiments, the fourth driving element 63 is an air pump.

[0180] Furthermore, the airbag unit 60 further includes an air pressure monitoring element 64 , which is disposed in the airbag element 61 and connected to the control unit 70 , for monitoring the pressure of the gas in the airbag element 61 .

[0181] In some embodiments, the air pressure monitoring element 64 includes, but is not limited to, an air pressure monitoring sensor.

[0182] like Figure 8 As shown, the control unit 70 includes a control element 71, a communication element 72, a manipulation element 73, and a power supply element 74. The control element 71 is disposed on the base unit 10 and is connected to the first support unit 20, the second support unit 30, the third support unit 40, and the airbag unit 60, respectively. The communication element 72 is disposed on the base unit 10 and is connected to the control element 71 for information transmission. The manipulation element 73 is disposed on the base unit 10 and is connected to the control element 71 for manipulating the first support unit 20, the second support unit 30, the third support unit 40, and the airbag unit 60. The power supply element 74 is disposed on the base unit 10 and is connected to the control element 71 for power supply.

[0183] Specifically, the control element 71 is disposed on the first base element 11 and is connected to the first driving element 24 , the second driving element 34 , the third driving element 44 , the fourth driving element 63 and the air pressure monitoring element 64 respectively.

[0184] In some embodiments, the control element 71 includes but is not limited to a single chip microcomputer, a chip, and a processor.

[0185] In some embodiments, the communication element 72 includes but is not limited to a Bluetooth module, a WiFi module, a 4G module, a 5G module,

[0186] In some embodiments, the control element 73 includes but is not limited to an on / off key, an adjustment key, an enter key, and the like.

[0187] In some embodiments, the power supply element 74 includes a detachable design and a non-detachable design. When it is a detachable design, the power supply element 74 can be replaced, and when it is a non-detachable design, the power supply element 74 can be charged.

[0188] In some embodiments, the power supply element 74 includes, but is not limited to, a lithium battery.

[0189] The use method of this utility model:

[0190] (1) Installation and fixing

[0191] The first base element 11 is fixed to the side of the operating table using the first mounting element 12;

[0192] Place the patient's lower limbs on the airbag element 61, and then use the fourth driving element 63 to inflate the airbag element 61, and then fix the patient's lower limbs to the fourth support element 52; then use the first fixing element 54 to connect the second fixing element 55 to further fix the patient's lower limbs to the fourth support element 52; the first supporting element 21, the second supporting element 31, the third supporting element 41 and the fourth supporting element 52 cooperate to support the patient's lower limbs; the air pressure monitoring element 64 monitors the pressure inside the airbag element 61. When the pressure value exceeds the preset value, the control element 71 controls the fourth driving element 63 to deflate the airbag element 61.

[0193] (2) Adjusting the patient's lower limb posture

[0194] Medical staff can operate the control element 73 according to surgical needs, use the first driving element 24 to rotate the first supporting element 21, and then adjust the posture of the patient's lower limbs in the first direction; use the second driving element 34 to rotate the second supporting element 31, so that the first rotating element 23 and the second rotating element 32 rotate relative to each other, adjust the posture of the patient's lower limbs in the second direction (such as rotation, movement), and use the second supporting element 31 to adjust the height of the patient's lower limbs; use the third driving element 44 to drive the fourth rotating element 42 to rotate relative to the third rotating element 33 to adjust the angle between the third supporting element 41 and the second supporting element 31, and then adjust the posture of the patient's lower limbs in the third direction.

[0195] The technical effects of the present invention are as follows: the base unit is connected to the operating bed, and the stability is increased by virtue of the weight of the operating bed; the fixing unit is used to support and fix the patient's lower limbs; and the airbag unit is used to adjust the inflation volume according to the physique of different patients to fix the patient's lower limbs, which makes the fixation more firm and comfortable, and solves the problem of loose fixation of the patient's lower limbs; the first supporting unit, the second supporting unit, and the third supporting unit are used in combination, which can not only adjust the angle and height of the patient's lower limbs, freely move and rotate the patient's lower limbs, but also achieve precise control and adjustment, simple and easy operation, save manpower and more precise control, ensure the smooth progress of the operation, and solve the problem of not being able to accurately adjust the posture of the patient's lower limbs.

[0196] Example 2

[0197] This embodiment is a variation of embodiment 1.

[0198] like Figure 9As shown, the base unit 10 further includes a chamber element 14, a first clamping element 15, at least one elastic element 16, and a second clamping element 17. The chamber element 14 is disposed on a first side of the first base element 11; the first clamping element 15 is movably disposed on the chamber element 14, slidably connected to the first base element 11, and abuts against the top of the operating bed; the elastic element 16 is disposed on the chamber element 14, with a first end of the elastic element 16 connected to the first base element 11 and a second end of the elastic element 16 connected to the first clamping element 15; and the second clamping element 17 is disposed on a second side of the first base element 11 and abuts against the bottom of the operating bed.

[0199] The dimensions of the cavity element 14 match those of the first base element 11. Generally, the radial dimensions (e.g., length and width) of the cavity element 14 are smaller than the radial dimensions (e.g., length and width) of the cross section of the first base element 11 in which the cavity element 14 is located, and the depth of the cavity element 14 is smaller than the height of the first base element 11.

[0200] In some embodiments, the chamber component 14 is a placement cavity.

[0201] The dimensions of the first clamping element 15 match those of the first chamber element 14. Generally, the radial dimensions (e.g., length and width) of the first clamping element 15 are smaller than the radial dimensions (e.g., length and width) of the first chamber element 14, and the height of the first clamping element 15 is no greater than the depth of the first chamber element 14.

[0202] In some embodiments, the first clamping element 15 is arranged in an “L” shape.

[0203] In some embodiments, the first clamping element 15 is a first clamping plate.

[0204] The elastic element 16 is connected to the first base element 11 and the first clamping element 15 in a fixed connection, wherein the fixed connection includes but is not limited to welding.

[0205] The dimensions of the elastic element 16 match those of the cavity element 14. Generally, the radial dimension (e.g., outer diameter) of the elastic element 16 is smaller than the radial dimension (e.g., length, width) of the cavity element 14, and the length of the elastic element 16 in its natural state is smaller than the depth of the cavity element 14.

[0206] In some embodiments, there are multiple elastic elements 16 , which are spaced apart along the length of the chamber element 14 .

[0207] In some embodiments, the elastic element 16 is a spring.

[0208] The second clamping element 17 is arranged perpendicular to the first base element 11 .

[0209] The second clamping element 17 is connected to the first base element 11 in a fixed connection, wherein the fixed connection method includes but is not limited to integral molding and welding.

[0210] The dimensions of the second clamping element 17 match the dimensions of the first base element 11. Generally, the width of the first clamping element 15 is equal to the width of the first base element 11.

[0211] In some embodiments, the second clamping element 17 is a second clamping plate.

[0212] Furthermore, the base unit 10 further includes an anti-slip element 18. The anti-slip element 18 is provided on a side of the first base element 11 to prevent the first base element 11 from sliding relative to the operating table.

[0213] The anti-slip element 18 is connected to the first base element 11 by fixed connection, wherein the fixed connection method includes but is not limited to hot pressing.

[0214] The size of the anti-slip element 18 matches the size of the first base element 11. Generally, the radial size (such as length and width) of the anti-slip element 18 is smaller than the radial size (such as length and width) of the first base element 11 in which it is located.

[0215] In some embodiments, there are three anti-slip elements 18 , which are respectively disposed on the first base element 11 , the first clamping element 15 , and the second clamping element 17 .

[0216] In some embodiments, the anti-slip element 18 includes but is not limited to a silicone gasket.

[0217] The method of using this embodiment is as follows:

[0218] When fixing the first base element 11 to the operating bed, first use the second clamping element 17 to abut the bottom end of the side of the operating bed, and at the same time pull the first clamping element 15 to slide in the chamber element 14, the elastic element 16 is deformed, and the first clamping element 15 is released. Under the action of the elastic element 16, the first clamping element 15 is clamped at the top end of the side of the operating bed, thereby fixing the first base element 11 to the side of the operating bed; then, determine whether the first mounting element 12 is needed to further fix the base element; the anti-slip element 18 prevents the first base element 11, the first clamping element 15, the second clamping element 17 and the operating bed from sliding relative to each other.

[0219] The technical effects of this embodiment are as follows: the first clamping element, the second clamping element and the elastic element cooperate with each other to make it easier to install the base unit on the operating table, thereby improving installation efficiency, increasing stability and saving manpower; the anti-slip element can increase the stability of the base unit, ensuring the smooth progress of the operation, and further solving the problem of insufficient stability of the lower limb fixation device.

[0220] Example 3

[0221] This embodiment is a variation of Embodiment 1 and Embodiment 2.

[0222] like Figure 10 As shown, the lower limb restraint device further includes a display unit 80. The display unit 80 is provided on the base unit 10 and connected to the control unit 70 for displaying the angles of the first support unit 20, the second support unit 30, and the third support unit 40 and the parameters of the airbag unit 60.

[0223] Specifically, the display unit 80 is disposed on the first base element 11 and connected to the control element 71 .

[0224] In some embodiments, the display unit 80 includes but is not limited to a touch screen and a display screen.

[0225] The method of using this embodiment is as follows:

[0226] During the operation, the angle and position of the patient's lower limbs can be observed in real time through the display unit 80, and the actual angle and orientation of the first support element 21, the second support element 31, and the third support element 41 can be accurately adjusted with reference to the parameters of the display unit 80 as needed.

[0227] The technical effects of this embodiment are as follows: the display unit can be used to adjust the posture of the patient's lower limbs more accurately, intuitively and conveniently, thereby improving work efficiency.

[0228] Example 4

[0229] This embodiment is a variation of Embodiments 1 to 3.

[0230] like Figure 11 As shown, the lower limb fixation device further includes at least one adjustment unit 90. The adjustment unit 90 is disposed at the second end of the third support unit 40 and is connected to the fixing unit 50 and the control unit 70 respectively, for adjusting the angle of the fixing unit 50.

[0231] In some embodiments, there are multiple adjustment units 90 , which are distributed at the second end of the second base element 43 .

[0232] In some embodiments, there are four adjustment units 90 , which are distributed at the second end of the second base element 43 .

[0233] like Figure 12 As shown, the adjustment unit 90 includes a hydraulic adjustment element 91, a second mounting element 92, a third mounting element 93, and a housing element 94. The hydraulic adjustment element 91 is disposed between the third support unit 40 and the fixing unit 50 and is connected to the control unit 70 for adjusting the angle of the fixing unit 50. The second mounting element 92 is disposed at a first end of the hydraulic adjustment element 91 and is connected to the third support unit 40. The third mounting element 93 is disposed at a second end of the hydraulic adjustment element 91 and is connected to the fixing unit 50. The housing element 94 is disposed at the second end of the third support unit 40, with the first ends of the hydraulic adjustment elements 91 located inside the housing element 94 and the second ends of the hydraulic adjustment elements 91 located outside the housing element 94.

[0234] Specifically, the hydraulic adjustment element 91 is connected to the control element 71; the second mounting element 92 is connected to the second base element 43; the third mounting element 93 is connected to the third base element 51; the shell element 94 is connected to the second base element 43, and the second end of the hydraulic adjustment element 91 slides relative to the second end of the shell element 94.

[0235] In some embodiments, the hydraulic adjustment element 91 is a second hydraulic push rod.

[0236] The second mounting element 92 and the second base element 43 are connected in a detachable manner, wherein the detachable connection manner includes but is not limited to a flange connection.

[0237] The second mounting element 92 is connected to the hydraulic adjustment element 91 by a fixed connection, wherein the fixed connection method includes but is not limited to integral molding and welding.

[0238] The size of the second mounting element 92 matches the size of the second base element 43. Generally, the radial size (such as outer diameter, length, width) of the second mounting element 92 is smaller than the radial size (such as outer diameter, length, width) of the second base element 43.

[0239] In some embodiments, the second mounting element 92 is a second mounting hole, a second mounting bolt, or a first mounting seat.

[0240] The third mounting element 93 is connected to the third base element 51 in a detachable connection, wherein the detachable connection includes but is not limited to a flange connection.

[0241] The third mounting element 93 is connected to the hydraulic adjustment element 91 by a fixed connection, wherein the fixed connection method includes but is not limited to integral molding and welding.

[0242] The dimensions of the third mounting element 93 match those of the third base element 51. Generally, the radial dimensions (eg, outer diameter, length, width) of the third mounting element 93 are smaller than those of the third base element 51.

[0243] In some embodiments, the third mounting element 93 is a third mounting hole, a third mounting bolt, or a second mounting seat.

[0244] The housing element 94 and the second base element 43 are connected in a detachable manner, wherein the detachable connection manner includes but is not limited to a flange connection.

[0245] The dimensions of the housing element 94 match those of the second base element 43. Generally, the radial dimensions (eg, outer diameter, length, width) of the housing element 94 are smaller than the radial dimensions (eg, outer diameter, length, width) of the second base element 43.

[0246] The dimensions of the housing element 94 match those of the second mounting element 92. Generally, the radial dimensions (eg, outer diameter, length, width) of the housing element 94 are greater than the radial dimensions (eg, outer diameter, length, width) of the second mounting element 92.

[0247] The dimensions of the housing element 94 match those of the hydraulic adjustment element 91. Generally, the radial dimension (eg, height) of the housing element 94 is smaller than the height of the hydraulic adjustment element 91.

[0248] In some of these embodiments, the housing element 94 is a protective shell.

[0249] The method of using this embodiment is as follows:

[0250] If the posture of the patient's lower limbs needs to be adjusted during the operation, the angle of the fourth support element 52 can be directly adjusted by the height of the hydraulic adjustment element 91, and the patient's lower limbs can be adjusted in multiple directions in cooperation with the first support element 21, the second support element 31, and the third support element 41 to meet the needs of the operation.

[0251] The technical effects of this embodiment are as follows: the adjustment unit can be used to perform multi-directional, flexible, and precise adjustments to the patient's lower limbs, ensuring the smooth progress of the operation and further solving the problem of not being able to accurately adjust the posture of the patient's lower limbs.

[0252] The above description is only a preferred embodiment of the present invention and does not limit the implementation method and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A lower limb fixation device for adjusting the posture of the lower limbs during hip replacement surgery, characterized in that: include: a base unit, the base unit being removably disposed on a side of the operating table; a first supporting unit, the first supporting unit being arranged on a side of the base unit, a first end of the first supporting unit being connected to the base unit, and being used to support the patient's lower limbs in a horizontal direction; a second supporting unit, wherein a first end of the second supporting unit is rotatably connected to a second end of the first supporting unit and is used for performing a first angle adjustment on the patient's lower limb; a third support unit, wherein a first end of the third support unit is rotatably connected to a second end of the second support unit, and is used to perform a second angle adjustment on the patient's lower limb, wherein a direction of the second angle adjustment is the same as or different from a direction of the first angle adjustment; a fixing unit, wherein the bottom end of the fixing unit is connected to the second end of the third supporting unit and is used to fix the patient's lower limb; an airbag unit, the airbag unit being arranged on the fixing unit and being used for inflating to fix the patient's lower limbs; A control unit is provided on the base unit and is connected to the second support unit and the airbag unit respectively.

2. The lower limb fixation device according to claim 1, characterized in that: The base unit comprises: a first base element removably disposed on a side of the operating table; at least one first mounting element, the first mounting element being disposed on the first base element and connected to the operating table for fixing the first base element; A first connecting element is provided on the first base element and connected to the first end of the first supporting unit.

3. The lower limb fixation device according to claim 2, characterized in that: The base unit further comprises: a chamber element disposed on a first side of the first base element; a first clamping element, the first clamping element being movably disposed on the chamber element, being slidably connected to the first base element, and abutting against the top of the operating table; at least one elastic element, the elastic element being disposed in the chamber element, a first end of the elastic element being connected to the first base element, and a second end of the elastic element being connected to the first clamping element; a second clamping element, the second clamping element being disposed on a second side of the first base element and abutting against a bottom of the operating bed; and / or An anti-slip element is provided on a side of the first base element, and is used to prevent the first base element from sliding relative to the operating bed.

4. The lower limb fixation device according to claim 1, characterized in that: The first supporting unit includes: a first supporting element, the first supporting element being provided at a side of the base unit and being used to support the patient's lower limbs in a horizontal direction; a second connecting element, the second connecting element being disposed at a first end of the first supporting element and connected to the base unit; a first rotating element, which is disposed at the second end of the first supporting element and is rotatably connected to the second supporting unit; and / or The second supporting unit includes: a second supporting element, the second supporting element being disposed at a second end of the first supporting unit and being used for performing a first angle adjustment on the patient's lower limb; a second rotating element, the second rotating element being disposed at a first end of the second supporting element and being rotatably connected to the first supporting unit; A third rotating element, the third rotating element being disposed at the second end of the second supporting element and being rotatably connected to the third supporting unit; and / or The third supporting unit includes: a third supporting element, the third supporting element being provided at the second end of the second supporting unit and being used for performing a second angle adjustment on the patient's lower limb; a fourth rotating element, the fourth rotating element being disposed at the first end of the third supporting element and being rotatably connected to the second end of the second supporting unit; A second base element is provided at the second end of the third supporting element and is connected to the fixing unit.

5. The lower limb fixation device according to claim 4, characterized in that: The first supporting unit further includes: a first driving element, which is disposed on a side of the base unit and is connected to the first supporting element and the control unit, respectively, and is used to drive the first supporting element to rotate; and / or The second supporting unit further includes: a second driving element, which is disposed at an end of the second rotating element and is connected to the control unit, and is used to drive the second rotating element to rotate relative to the first supporting unit; and / or The third supporting unit further includes: A third driving element is provided at an end of the fourth rotating element and is connected to the control unit, and is used for driving the fourth rotating element to rotate relative to the second supporting unit.

6. The lower limb fixation device according to claim 1, characterized in that: The fixing unit includes: a third base element, wherein a bottom end of the third base element is connected to the second end of the third supporting unit; a fourth supporting element, the fourth supporting element being arranged in an arc shape and being located at the second end of the third base element, for supporting the patient's lower limbs at a bottom end; a channel element, the channel element being arranged to pass through the fourth supporting element, the airbag unit being arranged inside the channel element; and / or The airbag unit comprises: An airbag component is provided on the inner edge surface of the fixing unit, and fixes the patient's lower limbs by inflation and releases the fixation of the patient's lower limbs by deflation; a gas delivery element, the gas delivery element being disposed on the fixing unit, wherein a first end of the gas delivery element is in communication with the airbag element and is configured to deliver gas to the airbag element; A fourth driving element is provided on the fixing unit and is communicated with the second end of the gas delivery element and connected to the control unit, and is used for inflating or deflating the airbag element.

7. The lower limb fixation device according to claim 6, characterized in that: The fixing unit further includes: at least one first fixing element, wherein a first end of the first fixing element is disposed on a first side of the fourth supporting element, and is used to fix the patient's lower limb to the fourth supporting element; at least one second fixing element, which is disposed on a second side of the fourth supporting element and is detachably connected to the first fixing element, and is used to cooperate with the first fixing element to fix the patient's lower limb to the fourth supporting element; and / or The airbag unit further includes: An air pressure monitoring element is provided in the airbag element and is connected to the control unit for monitoring the pressure of the gas in the airbag element.

8. The lower limb fixation device according to claim 1, characterized in that: The control unit comprises: a control element, the control element being disposed on the base unit and connected to the first support unit, the second support unit, the third support unit, and the airbag unit respectively; a communication element, the communication element being disposed on the base unit and connected to the control element for information transmission; a manipulation element, the manipulation element being disposed on the base unit and connected to the control element, and being used to manipulate the first support unit, the second support unit, the third support unit, and the airbag unit; A power supply element is provided on the base unit and connected to the control element for supplying power.

9. The lower limb fixation device according to any one of claims 1 to 8, characterized in that: Also includes: a display unit, the display unit being provided on the base unit and connected to the control unit, and being configured to display angles of the first support unit, the second support unit, the third support unit, and parameters of the airbag unit; and / or At least one adjusting unit is provided at the second end of the third supporting unit and is connected to the fixing unit and the control unit respectively, for adjusting the angle of the fixing unit.

10. The lower limb fixation device according to claim 9, characterized in that: The adjustment unit includes: a hydraulic adjustment element, the hydraulic adjustment element being disposed between the third support unit and the fixing unit and connected to the control unit, for adjusting the angle of the fixing unit; a second mounting element, the second mounting element being disposed at a first end of the hydraulic adjustment element and connected to the third supporting unit; a third mounting element, the third mounting element being disposed at the second end of the hydraulic adjustment element and connected to the fixing unit; A shell element is provided at the second end of the third supporting unit, wherein the first ends of the plurality of hydraulic adjustment elements are located inside the shell element and the second ends of the hydraulic adjustment elements are located outside the shell element.

Images