Prosthetic foot plate assembly workbench device and use thereof

Abstract

The application discloses a kind of artificial foot plate assembly workstation device and its application.The application uses multistage limiting workbench, uses different limiting mode limiting, ensure that artificial foot plate in the process of assembly, the direction accuracy requirement of connecting column and artificial foot plate opening slot, by moving the different positions of portal frame, and replace different extension plate adjustment and the height of limiting plate, to adapt to the height of different artificial foot plate connecting column, ensure that the longitudinal straightness requirement of different artificial foot plate connecting column and artificial foot plate, so that the gait of user is more natural, meet supporting and motion coordination requirement, adapt to different artificial foot plate assembly use, strong universality, high practicability.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of prosthetics, in particular to a prosthetic foot plate assembly workbench device and its application. BACKGROUND

[0002] The prosthetic foot core is suitable for amputees with thigh amputation and lower leg amputation, and is used to compensate for the functional loss of below-knee amputees due to limb defects. At present, the below-knee prosthetic foot core products produced by domestic manufacturers are mostly assembled from different parts to ensure that the prosthetic foot does not tilt after assembly, and the cushioning force when landing is not deviated. The suitable prosthetic foot core can realize correct energy storage and release during gait, making the gait of amputees more natural.

[0003] There are currently various prosthetic foot plates / foot cores. For example:

[0004] The patent specification with publication number CN213217926U discloses a prosthetic foot plate with better elasticity and strength, which includes a first foot plate and a second foot plate. The first foot plate is an L-shaped plate body with its upper end connected to the human body and its lower end connected to the second foot plate. The second foot plate is a horizontal plate body with one end connected to the first foot plate to form a V-shaped structure. Both the first foot plate and the second foot plate include a first composite layer, a second composite layer, and a third composite layer arranged in sequence. The first and second foot plates in this patent technology use a composite layer structure of carbon fiber, which obtains foot plates with different hardness and elasticity, thereby adapting to the needs of various users and their environments, widening the scope of application, improving the comfort of users, and improving the practicality of the product.

[0005] The patent specification with publication number CN213217925U discloses a foot plate prosthetic with better elasticity and strength, which includes a first foot plate and a second foot plate. The first foot plate is an arc-shaped plate body with one end connected to the human body and the middle connected to the second foot plate. The second foot plate is a horizontal plate body with one end connected to the first foot plate to form a Y-shaped structure. Both the first foot plate and the second foot plate include a first composite layer, a second composite layer, and a third composite layer arranged in sequence. The first and second foot plates in this patent technology use a composite layer structure of carbon fiber, which obtains foot plates with different hardness and elasticity, thereby adapting to the needs of various users and their environments, widening the scope of application, improving the comfort of users, and improving the practicality of the product.

[0006] The carbon fiber artificial foot core in the current market generally adopts a bolt connection mode, and is assembled by different carbon fiber plates, however, the mechanical connection assembly precision is also a factor influencing the service life and wearing comfort of the product, therefore, the special assembly device is adopted to ensure the consistency of the assembly precision of the artificial foot core, ensure the wearing comfort of the amputee, and prolong the service life. SUMMARY

[0007] The application provides an artificial foot plate assembly workbench device and application thereof.

[0008] [1] An artificial foot plate assembly workbench device, the artificial foot plate comprising a foot plate and a connecting member for connecting an ankle joint and the foot plate, the connecting member being provided with a connecting column for connecting the ankle joint, the artificial foot plate assembly workbench device comprising a base, a gantry and a limiting assembly; the gantry is a portal structure through which the artificial foot plate passes, comprising two supporting feet and a cross beam fixedly connected to the top ends of the two supporting feet; the limiting assembly is a limiting plate or a limiting plate and an extension plate fixedly connected in sequence, and is used for assembling different artificial foot plates.

[0009] Two first sliding grooves corresponding to the two supporting feet of the gantry are formed on the base in the longitudinal direction, so that the gantry can move longitudinally along the first sliding grooves to adjust the position of the gantry fixedly installed on the base; the gantry can be fixedly installed at any position in the first sliding grooves to assemble different artificial foot plates.

[0010] A second sliding groove is formed on the top surface of the cross beam in the longitudinal direction, so that the limiting assembly can move longitudinally along the second sliding groove to adjust the position of the limiting assembly fixedly installed on the gantry; the limiting assembly can be fixedly installed at any position in the second sliding groove through the limiting plate or the extension plate to assemble different artificial foot plates.

[0011] The end face of one end of the limiting plate is an inclined surface matched with the inclination of the side surface of the connecting column, and the end is formed with a notch, and the one end of the limiting plate at the notch is detachably fixedly connected with a first pressing plate, so that the notch forms a through hole or a clamping groove through which the connecting column can be inserted and clamped.

[0012] In some embodiments, the artificial foot plate assembly workbench device, the top surface of the limiting plate is provided with a second pressing plate for pressing the connecting column downward, one end of the second pressing plate is in contact with the top surface of the connecting column in the through hole, and further optionally, the bottom surface of the second pressing plate at the two ends is an arc-shaped pressing surface, one end of the arc-shaped pressing surface is in contact with the top surface of the connecting column in the through hole; the second pressing plate is provided with a threaded hole, and the second pressing plate is fixedly connected to the top surface of the limiting plate through a bolt, and the stress surface of the second pressing plate at the threaded hole for the bolt fixed connection is arc-shaped.

[0013] In some embodiments, the prosthetic foot plate assembly workbench device is provided with one or more pressing mechanisms on the base for fixing the prosthetic foot plate. Further optionally, the pressing mechanism comprises a pressing bolt and a pressing block through which the pressing bolt passes, and the pressing block is used to press and fix the prosthetic foot plate under the action of the pressing bolt; the base is provided with a plurality of bolt holes that can cooperate with the pressing bolt, which is used to adjust the position of the pressing mechanism to cooperate with different prosthetic foot plates.

[0014] In some embodiments, the prosthetic foot plate assembly workbench device is provided with a baffle at one end of the base, which is used to limit the longitudinal position of the prosthetic foot plate.

[0015] In some embodiments, the prosthetic foot plate assembly workbench device is provided with one or more open slots on the foot plate of the prosthetic foot plate, and the base is provided with one or more limiting bosses corresponding to one or more open slots, and the limiting boss extends into the open slot to position the prosthetic foot plate.

[0016] In some embodiments, the prosthetic foot plate assembly workbench device is provided with one or more open slots on the foot plate of the prosthetic foot plate, and the base is provided with one or more limiting bosses corresponding to one or more open slots, and the limiting boss extends into the open slot to position the prosthetic foot plate.

[0017] [2] The application of the prosthetic foot plate assembly workbench device according to [1] in fixing and assembling the prosthetic foot plate.

[0018] [3] A method for fixing and assembling a prosthetic foot plate, which uses the prosthetic foot plate assembly workbench device according to [1] to fix and assemble the prosthetic foot plate.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] The present application adopts a multi-stage limiting workbench, uses different limiting methods for limiting, ensures the direction accuracy requirements of the connecting column and the open slot of the prosthetic foot plate during the assembly process, adjusts the height of the extension plate and the limiting plate by moving the different positions of the gantry and replacing different extension plates, so as to adapt to the height of the connecting column of different prosthetic foot plates, ensures the longitudinal straightness requirements of the connecting column of different prosthetic foot plates and the prosthetic foot plate, makes the gait of the user more natural, meets the support and motion coordination requirements, is suitable for the assembly and use of different prosthetic foot plates, has strong universality and high practicability. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic view of the prosthetic foot plate assembly workbench device of embodiment 1.

[0022] Figure 2 It is a structural schematic view of the prosthetic foot plate connecting member of embodiment 1.

[0023] Figure 3 Fig. 2 is a schematic view of the working state of the prosthetic foot plate assembly workbench device of Example 1;

[0024] Figure 4 Fig. 3 is a schematic view of the structure of the prosthetic foot plate connecting member of Example 2;

[0025] Figure 5 Fig. 4 is a schematic view of the working state of the prosthetic foot plate assembly workbench device of Example 2. DETAILED DESCRIPTION

[0026] The present application will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present application and are not used to limit the scope of the present application.

[0027] Example 1:

[0028] Referring to Figures 1 to 3 The prosthetic foot plate assembly workbench device of the present embodiment is used for fixed assembly of a mid-ankle prosthetic foot plate.

[0029] The prosthetic foot plate of the present embodiment includes a first foot plate 121 which can function as a forefoot, a second foot plate 131 which can function as a rear heel support and is arc-shaped, and a first connecting member 151 which is arranged on the top surface of the rear end of the first foot plate 121. The bottom surface of the rear end of the first foot plate 121 is attached to the top of the second foot plate 131, and the second foot plate 131, the first foot plate 121 and the first connecting member 151 can be fixedly connected through a first locking bolt 141. The top surface of the first connecting member 151 is provided with a first connecting column 101 which is used to connect an ankle joint. The first foot plate 121 is provided with a first open slot which extends longitudinally from the middle of the front end to at least the middle part, and the second foot plate 131 is provided with a second open slot which extends longitudinally from the middle of the rear end.

[0030] The prosthetic foot plate assembly workbench device of the present embodiment includes a base 1, a gantry 2 and a limiting assembly.

[0031] The base 1 is provided with a baffle 8 at the rear end for limiting the longitudinal position of the prosthetic foot plate. The rear end of the second foot plate 131 abuts against the baffle 8, and the baffle 8 limits the longitudinal movement of the second foot plate 131 and positions the second foot plate 131. The front and rear surfaces of the base 1 are respectively provided with limiting bosses 7 corresponding to the first and second open grooves, and the limiting bosses 7 extend into the corresponding open grooves to position the first and second foot plates 121 and 131, prevent the transverse displacement of the first and second foot plates 121 and 131, and ensure the longitudinal alignment of the first and second foot plates 121 and 131. The base 1 is provided with four pressing mechanisms 9 for fixing the prosthetic foot plates. Two of the pressing mechanisms 9 are arranged at the front of the base 1 and located on the two sides of the first foot plate 121 respectively, for fixing the first foot plate 121; and the other two pressing mechanisms 9 are arranged at the rear of the base 1 and located on the two sides of the second foot plate 131 respectively, for fixing the second foot plate 131. The pressing mechanism 9 comprises a pressing bolt 91 and a pressing block 93 through which the pressing bolt 91 passes, and the pressing block 93 is used to press and fix the prosthetic foot plate under the action of the pressing bolt 91. The base 1 is provided with a plurality of bolt holes 92 that can cooperate with the pressing bolt 91, for adjusting the position of the pressing mechanism 9 to match the assembly of the prosthetic foot plate.

[0032] The portal frame 2 is a portal structure through which the prosthetic foot plate passes (for example, the first foot plate 121 passes through the portal frame 2 as shown in FIG. 1B). Figure 2 The limiting assembly of the present embodiment is a limiting plate 4 and an extension plate 3 that are fixedly connected in an up-down manner and have an adjustable relative position, for matching the assembly of the prosthetic foot plate. The base 1 is provided with two first sliding grooves corresponding to the two supporting legs of the portal frame 2, which are longitudinally arranged, so that the portal frame 2 can move longitudinally along the first sliding grooves to adjust the position of the portal frame 2 fixedly installed on the base 1 and limit the transverse movement of the portal frame 2. The portal frame 2 can be fixedly installed at any position in the first sliding grooves to match the assembly of the prosthetic foot plate. The top surface of the crossbeam of the portal frame 2 is provided with a second sliding groove, so that the limiting assembly can move longitudinally along the second sliding groove to adjust the position of the limiting assembly fixedly installed on the portal frame 2 and limit the transverse movement of the limiting assembly. The limiting assembly 2 can be fixedly installed at any position in the second sliding groove through the extension plate 3 to match the assembly of the prosthetic foot plate. The bottom surface of the crossbeam of the portal frame 2 is provided with a limiting guide column 10 corresponding to the first open groove, and the limiting guide column 10 extends into the first open groove to position the first foot plate 121, prevent the transverse displacement of the first foot plate 121, and ensure the longitudinal alignment of the first and second foot plates 121 and 131.

[0033] The end face of one end of the limiting plate 4 is a bevel that can cooperate with the inclination of the side face of the first connecting column 101, and the end forms a notch. The one end of the limiting plate 4 at the notch is detachably fixedly connected with the first pressing plate 6. The first pressing plate 6 is combined with the one end of the limiting plate 4 to form a through hole 5 into which the first connecting column 101 can be inserted and clamped. The top face of the limiting plate 4 is provided with a second pressing plate 11 for pressing the first connecting column 101 downward. The bottom face of one end of the second pressing plate 11 corresponds to the top face of the first connecting column 101 in the through hole 5. The bottom face of the second pressing plate 11 is an arc-shaped pressing face. The pressing face of one end of the second pressing plate 11 corresponds to the top face of the first connecting column 101 in the through hole 5, eliminates the gap, controls the direction and the stress position of the first connecting column 101. The second pressing plate 11 is fixedly connected with the top face of the limiting plate 4 through a threaded hole 111 and plays a role of pressing the first connecting column 101 downward. The stress surface of the second pressing plate 11 at the threaded hole 111 for the bolt fixed connection is arc-shaped, which ensures the consistency of the pressing force transmission position and the position accuracy of the first connecting column 101.

[0034] In the embodiment, the first connecting column 101 is a square taper, and the through hole 5 is a square taper hole that is adapted to the square taper. Since the end face of the one end of the limiting plate 4 at the through hole 5 is a bevel that can cooperate with the inclination of the side face of the first connecting column 101, the first pressing plate 6 can control and press the square taper of the first connecting column 101 after being arranged.

[0035] The prosthetic foot plate assembly workbench device of the embodiment is used for fixing and assembling the mid-ankle prosthetic foot plate. The longitudinal position of the gantry 2 on the base 1 can be adjusted first, so that the gantry 2, the base 1 and the components of the assembled prosthetic foot plate correspond and are fixed. The second foot plate 131 is placed on the base 1, the second open slot of the second foot plate 131 corresponds to the limiting boss 7, the rear end of the second foot plate 131 abuts against the baffle 8, and the second foot plate 131 is pressed by the pressing mechanism 9. The first foot plate 121 is placed on the base 1, the first open slot of the first foot plate 121 corresponds to the limiting boss 7 and the limiting guide column 10, the rear end of the first foot plate 121 corresponds to the top of the second foot plate 131, and the first foot plate 121 is fixed by the pressing mechanism 9. The first connecting column 101 of the first connecting member 151 corresponds to the notch (the through hole 5) of one end of the limiting plate 4, and the first pressing plate 6 and the second pressing plate 11 are pressed. The first locking bolt 141 is locked to ensure that the first foot plate 121, the second foot plate 131 and the first connecting member 151 and the first connecting column 101 thereon are consistent in direction.

[0036] Embodiment 2:

[0037] Referring to Figure 4 , Figure 5 , the prosthetic foot plate assembly workbench device of the embodiment is used for fixing and assembling the bottom-ankle prosthetic foot plate.

[0038] The prosthetic foot plate in the embodiment includes a third foot plate 122 and a fourth foot plate 132. The third foot plate 122 serves as a foot bottom plate and is arc-shaped. The fourth foot plate 132 serves as a foot back plate. The front end of the fourth foot plate 132 is fixedly connected to the middle front part of the third foot plate 122 through the second locking bolt 16, forming a roughly Y-shaped structure. The middle part of the third foot plate 122 is upwardly convex, which lifts the fourth foot plate 132 upward, and the rear end of the fourth foot plate 132 is upwardly tilted. The rear end of the fourth foot plate 132 is provided with a second connecting member 152, which is fixedly connected to the fourth foot plate 132 through the third locking bolt 142. The top surface of the second connecting member 152 is provided with a second connecting column 102 for connecting an ankle joint. The third foot plate 122 is provided with a longitudinal third opening slot from the middle of the front end and a longitudinal fourth opening slot from the middle of the rear end. The fourth foot plate 132 is provided with a longitudinal fifth opening slot from the middle of the front end.

[0039] The prosthetic foot plate assembly workbench device in the embodiment is similar to that in Embodiment 1 and also includes a base 1, a gantry 2 and a limiting assembly. The same or similar parts are not described again. The limiting assembly in the embodiment is a limiting plate 4 without an extension plate 3, which is used to cooperate with the prosthetic foot plate assembly. The rear end of the base 1 is provided with a baffle 8 for limiting the longitudinal position of the prosthetic foot plate. The rear end of the third foot plate 122 abuts against the baffle 8, and the baffle 8 limits the longitudinal movement of the third foot plate 122 and positions the third foot plate 122. The front part and the rear part of the surface of the base 1 are respectively provided with limiting bosses 7 corresponding to the third opening slot and the fourth opening slot. The limiting bosses 7 extend into the corresponding opening slots to position the third foot plate 122 and prevent the third foot plate 122 from moving laterally, thereby ensuring that the third foot plate 122 and the fourth foot plate 132 are longitudinally aligned. The base 1 is provided with four pressing mechanisms 9 for fixing the prosthetic foot plate. Two of the pressing mechanisms 9 are arranged at the front part of the base 1 and are respectively located on the two sides of the front part of the third foot plate 122, which are used to fix the front part of the third foot plate 122. The other two pressing mechanisms 9 are arranged at the rear part of the base 1 and are respectively located on the two sides of the rear part of the third foot plate 122, which are used to fix the rear part of the third foot plate 122, thereby playing a role in stabilizing the third foot plate 122 as a whole. Because the base 1 is provided with a plurality of bolt holes 92 that can cooperate with the pressing bolts 91, the positions of the pressing mechanisms 9 can be adjusted to cooperate with the prosthetic foot plate assembly. The third foot plate 122 and the fourth foot plate 132 both pass through the gantry 2. The bottom surface of the crossbeam of the gantry 2 is provided with a limiting guide column 10 corresponding to the fifth opening slot. The limiting guide column 10 extends into the fifth opening slot to position the fourth foot plate 132 and prevent the fourth foot plate 132 from moving laterally, thereby ensuring that the fourth foot plate 132 and the third foot plate 122 are longitudinally aligned. One end surface of the limiting plate 4 is an inclined surface that can cooperate with the inclination of the side surface of the second connecting column 102. The top surface of the limiting plate 4 is provided with a second pressing plate 11 for pressing the second connecting column 102 downward. One end bottom surface of the second pressing plate 11 corresponds to the top surface of the second connecting column 102 in the through hole 5.

[0040] In this embodiment, the second connecting column 102 is square pyramid, and the through hole 5 is square pyramid hole. Because the limiting plate 4 is inclined surface at one end of the through hole 5, the first pressing plate 6 can control and press the second connecting column 102 square pyramid after setting.

[0041] The prosthetic foot plate assembly workbench device of this embodiment is used for fixing and assembling the bottom ankle prosthetic foot plate. The longitudinal position of the gantry 2 on the base 1 can be adjusted first, so that the gantry 2, the base 1 and the components of the assembled prosthetic foot plate correspond and are fixed. The third foot plate 122 is placed on the base 1, the third opening slot and the fourth opening slot of the third foot plate 122 correspond to the limiting boss 7, the rear end of the third foot plate 122 abuts against the baffle 8, and the pressing mechanism 9 presses the third foot plate 122. The fourth foot plate 132 is placed on the third foot plate 122, the fifth opening slot of the fourth foot plate 132 corresponds to the limiting guide column 10, the front end of the fourth foot plate 132 corresponds to the middle front part of the third foot plate 122, and the fourth foot plate 132 is fixed and connected through the second locking bolt 16. The second connecting column 102 of the second connecting member 152 corresponds to the gap (through hole 5) at one end of the limiting plate 4, and the first pressing plate 6 and the second pressing plate 11 are pressed. The third locking bolt 142 is locked to ensure that the third foot plate 122, the fourth foot plate 132 and the second connecting member 152 and the second connecting column 102 thereon are consistent in direction.

[0042] Furthermore, it is to be understood that even though numerous characteristics and embodiments of the application have been set forth in the foregoing disclosure, the exact character it being depen dent upon the specific embodiment or implementations of the application described herein chosen by the inv entor: numerous modifications and variations are possible in light of what has been described and concepts mderstood by those skilled in the art. Thus, the scope of the application is not to be limited by the disclosed embodiments but by the appended claims and their equivalents.

Claims

1. A prosthetic foot assembly workbench device, the prosthetic foot comprising a foot plate and a connecting member for connecting the ankle joint and the foot plate, the connecting member being provided with a connecting column for connecting the ankle joint, characterized in that: The prosthetic foot assembly workbench device includes a base, a gantry and a limit assembly; the gantry is a door-shaped structure through which the prosthetic foot can pass, including two supporting legs and a crossbeam fixedly connected to the top of the two supporting legs; the limit assembly is a limit plate or a limit plate and an extension plate fixedly connected up and down, used for assembling different prosthetic foot plates; Two first slide grooves are provided longitudinally on the base, corresponding to the two supporting legs of the gantry frame, so that the gantry frame can be moved longitudinally along the first slide grooves to adjust the position of the gantry frame fixedly mounted on the base; the gantry frame can be fixedly mounted at any position in the first slide grooves to accommodate the assembly of different prosthetic foot plates; A second chute is longitudinally provided on the top surface of the crossbeam, so that the limit assembly can be longitudinally moved along the second chute to adjust the position of the limit assembly fixedly mounted on the gantry; the limit assembly can be fixedly mounted at any position in the second chute by a limit plate or an extension plate to accommodate the assembly of different prosthetic foot plates; The end face of one end of the limiting plate is an inclined surface that can match the inclination of the side surface of the connecting column and a notch is formed at this end. The end of the limiting plate where the notch is located is detachably fixedly connected to the first clamping plate, so that the notch forms a through hole or a slot for the connecting column to be inserted and clamped.

2. The prosthetic foot assembly workbench device according to claim 1, characterized in that: The top surface of the limiting plate is provided with a second pressing plate for pressing the connecting column downward, and the bottom surface of one end of the second pressing plate contacts the top surface of the connecting column in the through hole.

3. The prosthetic foot assembly workbench device according to claim 2, characterized in that: The two ends of the bottom surface of the second pressing plate are arc-shaped pressing surfaces, and the pressing surface at one end contacts the top surface of the connecting column in the through hole; A threaded hole is provided on the second pressing plate, and the second pressing plate is fixedly connected to the top surface of the limiting plate by bolts. The force-bearing surface of the second pressing plate where the threaded hole is located and used for bolt-fixed connection is arc-shaped.

4. The prosthetic foot assembly workbench device according to claim 1, characterized in that: One or more clamping mechanisms for fixing the prosthetic foot plate are provided on the base.

5. The prosthetic foot assembly workbench device according to claim 4, characterized in that: The clamping mechanism includes a clamping bolt and a clamping block through which the clamping bolt can pass. The clamping block is used to clamp and fix the prosthetic foot plate under the action of the clamping bolt. The base is provided with multiple bolt holes that can cooperate with the clamping bolts, which are used to adjust the position of the clamping mechanism to cooperate with the assembly of different prosthetic foot plates.

6. The prosthetic foot assembly workbench device according to claim 1, characterized in that: A baffle is provided at one end of the base to limit the longitudinal position of the prosthetic foot plate.

7. The prosthetic foot assembly workbench device according to claim 1, characterized in that: The prosthetic foot plate is provided with one or more opening slots, and the base is provided with one or more limiting bosses corresponding to the one or more opening slots, and the limiting bosses extend into the opening slots to position the prosthetic foot plate.

8. The prosthetic foot assembly workbench device according to claim 1, characterized in that: The prosthetic foot plate is provided with one or more opening slots, and the bottom surface of the crossbeam is provided with one or more limiting guide posts corresponding to the one or more opening slots, and the limiting guide posts extend into the opening slots to position the prosthetic foot plate.

9. Use of the prosthetic foot assembly workbench device according to any one of claims 1 to 8 in fixing and assembling a prosthetic foot.

10. A method for fixing and assembling a prosthetic foot, characterized in that: A prosthetic foot assembly workbench device according to any one of claims 1 to 8 is used to fix and assemble a prosthetic foot.

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