A lower limb support device

Abstract

The present invention discloses a lower limb support device, comprising a track portion, a popliteal support portion, and an ankle support portion. The popliteal support portion and the ankle support portion are arranged on the track portion and can slide horizontally along the longitudinal direction of the track portion. The ankle support portion comprises an ankle base block, an ankle rotating portion, an ankle placement portion, and an arc-shaped telescopic rod. One end of the arc-shaped telescopic rod is rotatably arranged on the ankle base block, the ankle rotating portion is rotatably arranged on the ankle base block, and the ankle placement portion is arranged on the ankle rotating portion and can swing back and forth. The popliteal support portion comprises a popliteal base block, a popliteal rotating portion, a telescopic rod, and a popliteal placement portion. The popliteal rotating portion is rotatably arranged on the popliteal base block, one end of the telescopic rod is rotatably connected to the popliteal rotating portion, and the popliteal placement portion is hinged to the other end of the telescopic rod and the arc-shaped telescopic rod. The ankle support portion and the popliteal support portion can not only realize linkage, but also realize relative position adjustment, making limb placement more flexible and the overall structure simple.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary appliances, and in particular to a lower limb support device. Background Art

[0002] Currently, the lithotomy position is widely used clinically for rectal, anorectal, urinary, and gynecological surgeries and examinations. This position fully exposes the perineum and facilitates surgical procedures. Elevating the lower limbs and placing them on a rigid metal limb support before surgery or examination, where the lower limbs are angled relative to the body, impairs blood flow to the lower limbs. This, particularly during long surgeries or examinations, can lead to blood clots and thrombosis, which can develop in the lower limbs. This thrombosis not only increases patient pain but also becomes a "silent killer" after surgery. Improper treatment can lead to sequelae and, in severe cases, life-threatening conditions. Commonly used lower limb support devices typically support the popliteal fossa. Under anesthesia, the lower leg naturally droops due to gravity, compressing the popliteal fossa and potentially damaging the popliteal nerve. Damage to the popliteal nerve can cause lower limb pain, mobility impairment, and, in severe cases, limb atrophy. Treatment is time-consuming and labor-intensive, with limited recovery outcomes, significantly impacting patients' lives. Existing lower limb support devices also make it difficult to adjust the patient's leg position, leaving medical staff with insufficient operating space during surgery. Furthermore, to prevent lower limb thrombosis or nerve damage, manual massage is often used. This is time-consuming and labor-intensive, easily contaminates the surgical area, and is less than ideal. It also requires high positioning skills from operating room nurses and doctors, placing a heavy workload. The following issues remain to be addressed in actual use:

[0003] 1. Prevention of lower limb thrombosis;

[0004] 2. Avoid popliteal nerve injury;

[0005] 3. Reduce the workload of medical staff. Summary of the Invention

[0006] The purpose of the present invention is to provide a lower limb support device to solve the problems raised in the above background technology: prevention of lower limb thrombosis, avoidance of popliteal nerve damage, and reduction of the workload of medical staff.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a lower limb support device, comprising an ankle support portion, a popliteal support portion, and a track portion, wherein the popliteal support portion and the ankle support portion are disposed on the track portion and are slidably connected to the track portion;

[0008] The ankle support portion includes an ankle bottom block, an ankle rotating portion, an ankle placement portion, and an arc-shaped telescopic rod, wherein the ankle bottom block is placed on the track portion and can slide horizontally along the longitudinal direction of the track, the lower end of the arc-shaped telescopic rod is rotatably connected to one end of the ankle bottom block, and the ankle rotating portion can rotate relative to the ankle bottom block, the ankle placement portion can reciprocate relative to the ankle rotating portion, and both ends of the ankle placement portion are provided with ankle joint wrapping portions inwardly;

[0009] The popliteal support portion includes a popliteal bottom block, two popliteal rotating portions, two telescopic rods, and a popliteal placement portion, wherein the popliteal bottom block is arranged on the track portion and can slide horizontally along the longitudinal direction of the track. The popliteal bottom block includes a bracket and a bottom portion located below the bracket. The two popliteal rotating portions can both rotate relative to the popliteal bottom block. Each telescopic rod can rotate corresponding to each popliteal rotating portion, and the upper end of each telescopic rod is hinged to the popliteal placement portion.

[0010] The upper end portion of the arc-shaped telescopic rod is hinged to the popliteal fossa placement portion.

[0011] Preferably, the ankle supporting portion includes an ankle bottom block, an ankle rotating portion, an ankle placing portion and an arc-shaped telescopic rod, wherein the ankle bottom block is placed on the track portion and can slide horizontally along the longitudinal direction of the track, the lower end of the arc-shaped telescopic rod is rotatably connected to one end of the ankle bottom block, and ankle ear seats are provided at both ends of the ankle bottom block, and each ankle ear seat is provided with a through hole A, the ankle rotating portion includes an ear plate portion and an axis portion A provided below the ear plate portion, the ear plate portion includes ankle ear plates provided on both sides and protruding upward, the two ends of the axis portion A are respectively located in the through holes A, and they are rotatably matched with the through holes A, so that the ankle rotating portion can rotate relative to the ankle bottom block, the ankle ear plates are provided with through holes B, the two ends of the ankle placing portion are provided with axis portions B outwardly, the axis portion B is rotatably provided in the through holes B, the two ends of the ankle placing portion are provided with ankle joint wrapping portions inwardly, and the ankle placing portion can swing back and forth around the axis of the axis portion B.

[0012] Preferably, the popliteal bottom block includes a bracket and a bottom located below the bracket, and the two popliteal rotating parts are rotatably arranged at the two ends of the bracket respectively. Popliteal ear seats are provided on both sides of each popliteal rotating part, and each popliteal ear seat is provided with a through hole B1. The lower end of each telescopic rod is provided with a horizontal axis portion, and the two ends of the horizontal axis portion are rotatably arranged in the through hole B1. The upper end of each telescopic rod is hinged to the popliteal placement portion.

[0013] Preferably, it also includes a massage part, which is arranged on the upper surface of the popliteal fossa placement part. The massage part includes a bottom layer, a filling layer, and an elastic layer arranged in sequence from bottom to top. The multiple synapses of the filling layer are accommodated in the multiple through holes of the elastic layer, and the filling layer is filled with liquid.

[0014] Preferably, each of the ankle joint wrapping parts includes an elastomer, a recess is formed on the elastomer, and a plurality of anti-slip protrusions are provided on the surface of the recess.

[0015] Preferably, the surface of the recess is provided with a plurality of anti-slip protrusions.

[0016] Preferably, a control device is further included, which includes a pump, and the pump pumps liquid into the filling layer or pumps liquid out of the filling layer through a pipeline to adjust the liquid pressure in the filling layer. When the above liquid pressure is large enough, the top of the synapse can bulge outward from the upper surface of the elastic layer.

[0017] Preferably, the arc-shaped telescopic rod includes an arc-shaped upper section and an arc-shaped lower section, and each telescopic rod also includes an upper section and a lower section; the positioning between the ankle bottom block and the track portion, the positioning between the ankle rotating portion and the ankle bottom block, the positioning between the lower section of the arc-shaped telescopic rod and the ankle bottom block, the positioning between the popliteal bottom block and the track portion, the positioning between the popliteal rotating portion and the popliteal bottom block, the positioning between the telescopic rod and the popliteal rotating portion, the positioning between the arc-shaped upper and lower sections of the arc-shaped telescopic rod, and the positioning between the upper and lower sections of the telescopic rod are all positioned by a locking device.

[0018] Preferably, the locking device comprises a locking device.

[0019] Preferably, an elastic pad is provided on the bottom of the ankle placement portion.

[0020] Also included is a method for using the lower limb support device, comprising the following steps: first, sliding the ankle bottom block on the track portion to a specified position; then adjusting the angle of the ankle rotating portion relative to the ankle bottom block; and then adjusting the popliteal placement portion to a specified position.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The arrangement of the arc-shaped telescopic rod structure enables the position adjustment of the ankle placement part and the popliteal fossa placement part to be linked / followed, while also having the independence of their respective position adjustment. Moreover, the arc-shaped telescopic rod also plays a supporting role, making the overall structure simpler, and the position adjustment of the ankle placement part and the popliteal fossa placement part can be more efficient, convenient, changeable and flexible;

[0023] (2) The lower limb support device effectively supports the patient's foot by providing an ankle placement portion, thereby effectively reducing the pressure on the patient's popliteal fossa. Moreover, the ankle wrapping portion on the ankle placement portion can firmly fix the patient's ankle, and the ankle placement portion can cause it to swing back and forth, so that the patient's foot can swing back and forth with the ankle as the axis, thereby driving the calf muscle movement, preventing lower limb venous thrombosis, and avoiding popliteal nerve damage caused by popliteal fossa compression. The lower limb support device can also achieve slow and separate raising and lowering of the lower limbs, maintaining a stable circulatory system and reducing the occurrence of cardiovascular accidents;

[0024] (3) The lower limb support device further prevents popliteal nerve damage and the formation of blood clots by providing a massage part and a control device; the provision of a locking device also enables accurate, convenient and quick positioning of the various components of the ankle support part and the popliteal fossa support part, thereby reducing the workload of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the ankle support structure of the present invention;

[0027] Figure 3 Schematic diagram of the popliteal fossa support structure of the present invention;

[0028] Figure 4 For the present invention Figure 3 A in the middle is an enlarged schematic diagram;

[0029] Figure 5 This is a schematic structural diagram of the locking device of the present invention;

[0030] Figure 6 This is a schematic structural diagram of the popliteal fossa placement portion with a massage portion of the present invention;

[0031] Figure 7 It is a partial cross-sectional schematic diagram of the massage part of the present invention.

[0032] In the figure: 1. ankle support part; 2. popliteal support part; 3. track part; 10. ankle bottom block; 11. ankle rotation part; 12. ankle placement part; 13. arc-shaped telescopic rod; 14. drive motor; 20. popliteal bottom block; 21. popliteal rotation part; 22. telescopic rod; 23. popliteal placement part; 41-44. locking device; 101. ankle ear seat; 102. through hole A; 103. locking part; 104. shaft D; 110. ear plate part; 111. shaft A; 112. ankle ear plate; 113. through hole B; 121. ankle joint wrapping part; 122. shaft B; 131. arc-shaped lower section; 132. arc-shaped upper section; 201 , bracket; 202, bottom; 203, shaft C; 204, locking part; 211, popliteal fossa ear seat; 212, through hole B1; 221, lower section; 222, upper section; 223, horizontal axis; 231, massage part; 411, handle; 412, shaft; 1011, locking part; 1211, elastomer; 1212, anti-slip protrusion; 2111, locking part; 2112, through hole C; 2311, bottom layer; 2312, filling layer; 2313, elastic layer; 2314, synapse; 2315, through hole; 2316, liquid; 4111, peripheral contour; 4121, first shaft segment; 4122, second shaft segment DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] Example 1:

[0035] See also Figure 1-7 , Figure 1 A lower limb support device is shown. It includes an ankle support portion 1, a popliteal support portion 2, and a track portion 3. Figure 1 As shown, the popliteal support portion 1 and the ankle support portion 2 are mounted on and slidably connected to the track portion 3; the track portion 3 is positioned horizontally. Depending on actual use, the track portion 3 of the lower limb support device can be mounted on equipment such as an operating table or examination bed using existing, common connection devices. For example, the track portion 3 can be suspended and / or rotatable relative to the operating table or examination bed within a horizontal plane, typically with an angle of rotation of no less than 90 degrees.

[0036] like Figure 2As shown, the ankle support portion 1 comprises an ankle base block 10, an ankle rotating portion 11, an ankle placement portion 12, and a curved telescopic rod 13. The ankle base block 10 is capable of sliding horizontally along the length of the track portion 3. The curved telescopic rod 13 comprises an upper curved section 132 and a lower curved section 131. The lower curved section 131 is tubular, with its lower end rotatably connected to / sleeved on a cylindrical shaft D104 at one end of the ankle base block 10 via a damping shaft. The lower curved section 131 rotates about the central axis of the shaft D104. Ankle ears 101 are provided at both ends of the ankle base block 10. Each ankle ear 101 is provided with a through hole A102, with the shaft D104 located below one of the through holes A102. The ankle swivel unit 11 comprises an ear plate 110 and a shaft portion A111 disposed below the ear plate 110. The ear plate 110 includes two upwardly protruding ankle ear plates 112. The two ends of the shaft portion A111 are respectively located within the through-holes A102, which rotate with the through-holes A102, allowing the ankle swivel unit 11 to rotate relative to the ankle base block 10. Each of the ankle ear plates 112 is provided with through-holes B113. The ankle support unit 12 is provided with shaft portions B122 on either side facing outward, which are positioned within the through-holes B113 and rotate with them. Ankle joint wrapping portions 121 are disposed inward on either side of the ankle support unit 12. Each ankle joint wrapping portion 121 comprises an elastic body 1211 with an inwardly recessed middle portion at its end surface. The elastic body 121 securely wraps the patient's ankle joint, while the sole of the patient's foot rests on the bottom 123 of the ankle support unit 12. A latex elastic cushioning layer is provided on the upper surface of the bottom portion 123, providing patients with more comfortable and fatigue-resistant foot support. A drive motor 14 (not shown, hidden by the lug 112 in the figure) is mounted on the lug 112 on one side of the ankle swivel portion 11. Driven by the drive motor 14, the ankle support portion 12 swings back and forth about the axis of the shaft B 113. During use, the patient's medial and lateral ankle joints, securely wrapped by the ankle wrap 121, are essentially coaxial with the shaft B 122, allowing the patient's entire foot to swing back and forth about the medial and lateral ankle joints, effectively alleviating lower limb numbness. The frequency and angle of this swing can be adjusted based on actual conditions. Specifically, the swing angle is approximately 45 degrees forward and approximately 30 degrees backward, maintained for 3-10 seconds, and swung back and forth 6-9 times every 5 minutes. For example, the swing angle is approximately 45 degrees forward and approximately 30 degrees backward, maintained for 3 seconds, and swung back and forth 9 times every 5 minutes.

[0037] like Figure 3As shown, the popliteal support portion 2 comprises a popliteal bottom block 20, two popliteal rotating portions 21, two telescopic rods 22, and a popliteal placement portion 23. The popliteal bottom block 20 is mounted on the track portion 3 and can slide horizontally along the length of the track portion 3. The popliteal bottom block 20 comprises a bracket 201 and a base 202. The bracket 201 is mounted above the base 202, with shafts C203 symmetrically positioned at both ends of the bracket 201. The two popliteal rotating portions 21 are respectively mounted on the shafts C203 at both ends of the bracket 201, rotating in conjunction with the shafts C203. Each popliteal rotation portion 21 is symmetrically provided with popliteal ear seats 211 on both sides. Each popliteal ear seat 211 is provided with a through hole B1212. The lower end of each telescopic rod 22 is provided with a transverse axis portion 223, with both ends of the transverse axis portion 223 disposed within the through hole B1212. The upper end of each telescopic rod 22 is hinged to the popliteal placement portion 23; the specific hinge form is a ball joint. One end of the arc-shaped upper section 132 of the arc-shaped telescopic rod 13 is hinged to the popliteal placement portion 23; the specific hinge form is a ball joint. In other words, the specific position of the popliteal placement portion 23 in space is achieved through the combined action of the arc-shaped telescopic rod 13 and each telescopic rod 22. Changes in the length, position, and angle of the arc-shaped telescopic rod 13 and each telescopic rod 22 can affect the position of the popliteal placement portion 23, and vice versa. This results in a high degree of flexibility and diversity in the specific position of the popliteal placement portion 23 in space. Furthermore, the ankle support portion 1 and the popliteal support portion 2 are connected by a curved telescopic rod 13, enabling them to move in conjunction with each other. During this interlocking / following movement, their relative positions can also be adjusted, further increasing the efficiency of the overall device's position adjustment and simplifying the adjustment process when adjusting the patient's lower limb position. It is particularly important to note that the curved upper section 132 is directly hinged to the popliteal placement portion 23, acting directly on the popliteal placement portion 23 rather than on other components of the popliteal support portion 2. This arrangement also allows the curved telescopic rod 13 to independently or collaboratively change or fine-tune the spatial position of the popliteal placement portion 23. This design not only simplifies the device structure but also allows the curved telescopic rod 13 to simultaneously perform multiple functions: diverse position adjustment functions and support for the popliteal placement portion 23. The retractability and rotatability of the arc-shaped telescopic rod 13 allow for linkage / follow-up while providing flexibility and functional diversity, thereby expanding the scope of use of the entire device, adapting to the needs of patients of different body shapes and rapid changes in leg positions during surgery / examination, and simplifying the operation process.

[0038] like Figure 1-4As shown, the positioning between the ankle bottom block 10 and the track portion 3, the positioning between the ankle rotating portion 11 and the ankle bottom block 10, the positioning between the arc-shaped lower section of the arc-shaped telescopic rod 13 and the ankle bottom block 10, the positioning between the popliteal bottom block 20 and the track portion 3, the positioning between the popliteal rotating portion 21 and the popliteal bottom block 20, the positioning between the telescopic rod 22 and the popliteal rotating portion 21, the positioning between the arc-shaped upper and lower sections of the arc-shaped telescopic rod 13, and the positioning between the upper and lower sections of the telescopic rod 22 are all achieved by a locking device. The locking device includes a locking device.

[0039] like Figure 4-5 As shown, a locking portion 2111 is further provided on the popliteal ear seat 211 of the popliteal rotation portion 21, and a through hole C2112 is provided on the locking portion 2111. The through hole C2112 is used to cooperate with the locking device 41. The locking device 41 includes a shaft 412 and a handle portion 411. The shaft 412 is "T"-shaped and includes a first shaft segment 4121 and a second shaft segment 4122 that are perpendicular to each other. The first shaft segment 4121 of the locking device 41 is provided with a through hole C2112. The through hole C2112 is used to cooperate with the locking device 41. The shaft section 4121 passes through the through hole C2112, and the handle portion 411 has a through hole 4112. The handle portion 411 is sleeved on the second shaft section 4122 through the through hole 4112 and can rotate around the second shaft section 4122. Since the outer peripheral profile 4111 on one side of the handle portion 411 conforms to the characteristics of the outer peripheral profile of the cam, that is, the telescopic rod 22 can be locked by rotating the handle portion 411 of the locking device 41. It should be noted that the ankle bottom block 10 and the popliteal bottom block 20 are also provided with locking parts 103 and 204 respectively. The positioning of the ankle bottom block 10 and the popliteal bottom block 20 on the track is achieved by the locking devices 42 and 43 with the same structure and different sizes as the locking device 41, and the locking parts 103 and 204 are cooperated to realize; the ankle ear seat 101 and the popliteal ear seat 211 of the ankle bottom block 10 and the popliteal bottom block 20 are also provided with locking parts 1011 and 2111 respectively, and the ankle rotating part 11 and the ankle rotating part The positioning of the ankle bottom block 11 on the ankle bottom block 10 is also achieved by the cooperation of another locking device 44 having the same structure as the locking device 41 but a different size and the locking portion 1011. Similarly, both ends of the arc-shaped lower section 131 of the arc-shaped telescopic rod 13 are also provided with locking portions, and the upper ends of the lower sections of the two telescopic rods 22 are also provided with locking portions. The positioning between the upper and lower sections of the arc-shaped telescopic rod 13 and / or the telescopic rod 22 is also achieved by the cooperation of another locking device having the same structure as the locking device 41 but a different size and the locking portion. In other words, the locking device may include not only the locking device but also the locking portion, which cooperates with the locking device to achieve positioning between the components.

[0040] like Figure 6-7As shown, a massage part 231 is also provided on the popliteal fossa placement part 23. The massage part 231 is provided on the upper surface of the popliteal fossa placement part 23, and the massage part 231 includes a bottom layer 2311, a filling layer 2312, and an elastic layer 2313 from bottom to top. The plurality of synapses 2314 of the filling layer 2312 are respectively accommodated in the plurality of through holes 2315 of the elastic layer 2313. The filling layer 2312 is filled with liquid 2316, and the liquid 2316 is water. It can also be oil or other well-known liquids, and the pressure and / or temperature of the liquid 2316 can be adjusted. The control device is used to adjust the pressure and / or temperature of the above-mentioned liquid 2316. When the liquid pressure is large enough, as Figure 7 As shown, the top of the synapse 2314 can bulge above the upper surface of the elastic layer 2313, that is, the top of the synapse 2314 is higher than the upper surface of the elastic layer 2313, which can enhance the massage effect. When the liquid pressure is not high (for example, when the massage part is not in use), the top of the synapse 2314 does not exceed the upper surface of the elastic layer 2313. The lower limb support device also includes a control device. The control device is used to control the movement of the relevant components. The control device includes a pump (not shown) that pumps liquid 2316 into the filling layer 2312 or out of the filling layer 2312 through a pipe (not shown), thereby adjusting the liquid pressure within the filling layer 2312. When the liquid pressure is high enough, the top of the synapse 2314 can bulge outward from the upper surface of the elastic layer 2313. The change in the temperature of the liquid 2316 helps regulate the patient's blood circulation.

[0041] When in use, first slide the ankle bottom block 10 on the track portion 3 to the designated position; then adjust the angle of the ankle rotating portion 11 relative to the ankle bottom block 10; and finally adjust the popliteal placement portion 23 to the designated position.

[0042] Example 2:

[0043] The cushion layer on the bottom upper surface of the ankle placement portion 12 is made of memory foam to support the sole of the patient more comfortably and prevent numbness and pain.

[0044] The surface of the recess 1211 is also provided with a plurality of anti-slip protrusions to further ensure the stability of the foot placement state.

[0045] The ear plate portion 110 is capable of rotating relative to the shaft portion A111 about an axis 114. Axis 114 is perpendicular to and intersects the centerline (extension) of through hole B113, and is also perpendicular to and intersects the centerline (extension) of shaft portion A111. Rotation of the ear plate portion 110 relative to shaft portion A111 is achieved by providing a damping shaft or a motor.

[0046] The telescopic rod 22 and the arc-shaped telescopic rod 13 are both damping telescopic rods. This further enables the lower limbs to be slowly and separately raised and lowered, maintaining a stable circulatory system and reducing the occurrence of cardiovascular accidents. During use, the telescopic rod 22 and the arc-shaped telescopic rod 13 can be extended and retracted manually.

[0047] The ankle base block 10 and the popliteal base block 20 are provided with a locking device A for positioning the ankle base block 10 and the popliteal base block 20 on the track portion 3; the ankle rotating portion 11 and the popliteal rotating portion 21 are provided with a locking device B for positioning the ankle rotating portion 11 and the popliteal rotating portion 21 on the ankle base block 10 and the popliteal base block 20; and the two ends of the lower section 131 of the arc-shaped telescopic rod 13 and the upper end of the lower section 221 of the telescopic rod 22 are provided with a locking device C for positioning the upper section 132 of the arc-shaped telescopic rod 13 and the upper section 222 of the telescopic rod 22 on the lower section 131 of the arc-shaped telescopic rod 13 and the lower section 221 of the telescopic rod 22, and positioning the arc-shaped telescopic rod 13 on the ankle base block 10. The locking devices can all be implemented using known structures / components, including eccentric locking devices and spiral locking mechanisms. For example, an eccentric locking device can be used to position the upper and lower sections of the telescopic rod 22 and / or the arcuate telescopic rod 13; a spiral locking mechanism can be used to position the ankle rotating portion 11 and the popliteal rotating portion 21 on the ankle bottom block 10 and the popliteal bottom block 20. For example, the spiral locking mechanism can be a bolt, a stud (similar structures are also acceptable), a nut with a threaded connection therewith, or the like.

[0048] In addition, when using the lower limb support device, the user can first slide the ankle base block 10 on the track portion 3 to a specified position; then adjust the angle of the ankle rotation portion 11 relative to the ankle base block 10; and then adjust the popliteal placement portion 23 to a specified position.

[0049] Furthermore, during use, the user can first slide the ankle base block 10 onto the track portion 3, lock it to the desired position, and then adjust the angle of the ankle swivel portion 11 relative to the ankle base block 10, and then lock the ankle swivel portion 11 relative to the ankle base block 10; then adjust the popliteal placement portion 23 to the desired position, and then lock the associated components. Alternatively, the user can first slide the popliteal base block 20 onto the track portion 3, lock it to the desired position, and then determine the spatial position of the popliteal placement portion 23, and then determine the position of the ankle base block 10 and lock it. At this point, the user can first support the popliteal placement portion 23 with one hand, and then use the other hand to lock the position of the telescopic rod 22 and popliteal swivel portion 21; then adjust the position of the ankle base block 10 on the track portion 3 and lock it, then lock the position of the curved telescopic rod 13, and finally adjust the angle of the ankle swivel portion 12 relative to the ankle base block 10 and lock it.

[0050] During use, as needed, the ankle placement part 12 is made to swing back and forth as preset; the liquid 2316 in the filling layer 2312 is pressurized so that the upper part of the synapse 2314 intermittently bulges out of the upper surface of the elastic layer 2313, thereby achieving the purpose of enhancing massage, and the pressurization is intermittent.

[0051] Example 3:

[0052] When in use, the telescopic rod 22 and the arc-shaped telescopic rod 13 are automatically extended and retracted by a control system that controls known electric or hydraulic telescopic components.

[0053] The ear plate portion 110 can rotate relative to the shaft portion A111 with the axis 114 as the rotation axis. The axis 114 is perpendicular to and intersects with the center line (extension line) of the through hole B113, and is perpendicular to and intersects with the center axis (extension line) of the shaft portion A111. The rotation of the ear plate portion 110 relative to the shaft portion A111 is electric. It is driven by a motor and controlled to start and stop by the control system. The sliding of the ankle bottom block 10 and the popliteal bottom block 20 on the track portion 3 is electric, and is controlled to start and stop by the control system; the rotation of the ankle rotating portion 11 and the popliteal rotating portion 21 relative to the ankle bottom block 10 and the popliteal bottom block 20 is electric, and is controlled to start and stop by the control system; the rotation of the arc-shaped telescopic rod 13 relative to the ankle bottom block 10 is electric, and is controlled to start and stop by the control system.

[0054] Furthermore, the ankle base block 10 and popliteal base block 20 are provided with locking devices A for positioning the ankle base block 10 and popliteal base block 20 on the track portion 3; the ankle rotating portion 11 and popliteal rotating portion 21 are provided with locking devices B for positioning the ankle rotating portion 11 and popliteal rotating portion 21 on the ankle base block 10 and popliteal base block 20; and the two ends of the lower section 131 of the arc-shaped telescopic rod 13 and the upper end of the lower section 221 of the telescopic rod 22 are provided with locking devices C for positioning the upper section 132 and the upper section 222 of the arc-shaped telescopic rod 13 and the lower section 221 of the telescopic rod 22, and for positioning the arc-shaped telescopic rod 13 and the upper section 222 of the telescopic rod 22 on the lower section 131 and the lower section 221 of the telescopic rod 13, and for positioning the arc-shaped telescopic rod 13 on the ankle base block 10. The locking devices are all composed of well-known electric components and are controlled by a control system.

[0055] Furthermore, when in use, the control system controls the ankle bottom block 10 to slide on the track portion 3 to a preset position and then lock it; then the ankle rotating portion 11 is rotated relative to the ankle bottom block 10 at a preset angle and then locked; and then simultaneously controls and adjusts the rotation and extension of the arc-shaped telescopic rod 13 and the two telescopic rods 22 to adjust the popliteal placement portion 23 to a preset position and lock it.

Claims

1. A lower limb support device, comprising an ankle support portion (1), a popliteal support portion (2), and a track portion (3), characterized in that: The popliteal fossa support portion (2) and the ankle support portion (1) are arranged on the track portion (3) and are slidably connected to the track portion (3); The ankle support portion (1) comprises an ankle bottom block (10), an ankle rotating portion (11), an ankle placement portion (12) and an arc-shaped telescopic rod (13), wherein the ankle bottom block (10) is placed on the track portion (3) and can slide horizontally along the longitudinal direction of the track portion (3), the lower end of the arc-shaped telescopic rod (13) is rotatably connected to one end of the ankle bottom block (10), and the ankle rotating portion (11) can rotate relative to the ankle bottom block (10), and the ankle placement portion (12) can swing back and forth relative to the ankle rotating portion (11), and both ends of the ankle placement portion (12) are provided with ankle joint wrapping portions (121) inwardly. The popliteal support portion (2) comprises a popliteal bottom block (20), two popliteal rotating portions (21), two telescopic rods (22), and a popliteal placement portion (23), wherein the popliteal bottom block (20) is arranged on the track portion (3), the popliteal bottom block (20) can slide horizontally along the longitudinal direction of the track portion (3), the popliteal bottom block (20) comprises a bracket (201) and a bottom portion (202) located below the bracket (201), the two popliteal rotating portions (21) can both rotate relative to the popliteal bottom block (20), each telescopic rod (22) can rotate corresponding to each popliteal rotating portion (21), and the upper end of each telescopic rod (22) is hinged to the popliteal placement portion (23); The upper end of the arc-shaped telescopic rod (13) is hinged to the popliteal fossa placement portion (23); Both ends of the ankle bottom block (10) are provided with ankle ear seats (101), and each ankle ear seat (101) is provided with a through hole A (102). The ankle rotating part (11) includes an ear plate part (110) and an axis part A (111) provided below the ear plate part (110). The ear plate part (110) includes ankle ear plates (112) provided on both sides and protruding upward. The two ends of the axis part A (111) are respectively located in the through hole A (102), and the through hole A (102) is rotated in cooperation with the through hole A (102). , so that the ankle rotating part (11) can rotate relative to the ankle bottom block (10), the ankle ear plate (112) is provided with a through hole B (113), the two ends of the ankle placement part (12) are provided with an axis B (122) facing outward, the axis B (122) is rotatably arranged in the through hole B (113), the two ends of the ankle placement part (12) are provided with an ankle joint wrapping part (121) facing inward, and the ankle placement part (12) can swing back and forth around the axis of the axis B (122).

2. A lower limb support device according to claim 1, characterized in that: The popliteal bottom block (20) includes a bracket (201) and a bottom (202) located below the bracket (201). Two popliteal rotating parts (21) are rotatably arranged at the two ends of the bracket (201). Both sides of each popliteal rotating part (21) are provided with popliteal ear seats (211). Each popliteal ear seat (211) is provided with a through hole B1 (212). The lower end of each telescopic rod (22) is provided with a transverse axis (223), and the two ends of the transverse axis (223) are rotatably arranged in the through hole B1 (212).

3. The lower limb support device according to claim 1 or 2, characterized in that: The invention also includes a massage part (231), which is arranged on the upper surface of the popliteal fossa placement part (23). The massage part (231) includes a bottom layer (2311), a filling layer (2312), and an elastic layer (2313) arranged in sequence from bottom to top. The plurality of synapses (2314) of the filling layer (2312) are accommodated in the plurality of through holes (2315) of the elastic layer, and the filling layer (2312) is filled with liquid (2316).

4. The lower limb support device according to claim 1 or 2, characterized in that: Each ankle joint wrapping portion (121) includes an elastic body (1211), a recess is formed on the elastic body (1211), and a plurality of anti-slip protrusions are provided on the surface of the recess.

5. The lower limb support device according to claim 3, wherein: Each ankle joint wrapping portion (121) includes an elastic body (1211), a recess is formed on the elastic body (1211), and a plurality of anti-slip protrusions are provided on the surface of the recess.

6. The lower limb support device according to claim 3, wherein: The device further includes a control device, wherein the control device includes a pump, which pumps liquid (2316) into the filling layer (2312) through a pipeline, or pumps liquid (2316) out of the filling layer (2312), thereby adjusting the liquid pressure in the filling layer (2312). When the above-mentioned liquid pressure is large enough, the top of the synapse (2314) bulges outward from the upper surface of the elastic layer (2313).

7. The lower limb support device according to claim 1 or 2, characterized in that: The arc-shaped telescopic rod (13) comprises an arc-shaped upper section (132) and an arc-shaped lower section (131), and each telescopic rod (22) comprises an upper section (222) and a lower section (221); the positioning between the ankle bottom block (10) and the track portion (3), the positioning between the ankle rotating portion (11) and the ankle bottom block (10), the positioning between the arc-shaped telescopic rod (13) and the ankle bottom block (10), the positioning between the popliteal bottom block (20) and the track portion (3), the positioning between the popliteal rotating portion (21) and the popliteal bottom block (20), the positioning between the telescopic rod (22) and the popliteal rotating portion (21), the positioning between the upper and lower sections of the arc-shaped telescopic rod (13), and the positioning between the upper and lower sections of the telescopic rod (22) are all positioned by a locking device.

8. The lower limb support device according to claim 7, wherein: The locking device comprises a locking device (41-44).

9. The lower limb support device according to claim 1 or 2, characterized in that: An elastic pad is provided on the bottom (123) of the ankle placement portion (12).

10. A method for using the lower limb support device according to any one of claims 1 to 9, characterized in that: The following steps are involved: First, the ankle bottom block (10) is slid onto the track portion (3) to a designated position; then the angle of the ankle rotating portion (11) relative to the ankle bottom block (10) is adjusted; and finally, the popliteal fossa placement portion (23) is adjusted to a designated position.

Images