CN102885663B - Dynamic below-knee prosthesis with continuous flexible toe joint - Google Patents
Dynamic below-knee prosthesis with continuous flexible toe joint Download PDFInfo
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- CN102885663B CN102885663B CN201210410393.4A CN201210410393A CN102885663B CN 102885663 B CN102885663 B CN 102885663B CN 201210410393 A CN201210410393 A CN 201210410393A CN 102885663 B CN102885663 B CN 102885663B
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- sole
- toe joint
- continuous flexible
- artificial limb
- fixedly connected
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Abstract
The invention relates to dynamic below-knee prosthesis with a continuous flexible toe joint. The dynamic below-knee prosthesis is characterized by comprising a whole sole, a toe joint and a below-knee prosthesis; and the toe joint comprises a motor arranged on the whole sole through a support, the motor is connected with a connecting rod through a driving mechanism, the other end of the connecting rod is rotationally connected with a pressing block, the pressing block is placed on the top surface of the front end of the whole sole, and the below-knee prosthesis is fixedly connected or hinged to the top surface of the rear part of the whole sole. The dynamic below-knee prosthesis has the advantages of high movement coherence, capability of being independently installed or replaced and capability of providing continuous flexible power for movement of a shank of a user, and can be widely applied to various amputees of different degrees.
Description
Technical field
The present invention relates to a kind of below-knee prosthesis, the dynamic below-knee artificial limb with continuous flexible toe joint that particularly a kind of main passive movement mode combines.
Background technology
Along with the increase of various natural disasters, disease and vehicle accident, individuals with disabilities's increasing year by year, the demand of artificial limb also increases day by day.Toe joint is activity position the most frequently in human motion, is also main force part of when motion, and especially landing at human body is in a flash the position landing at first, and it has larger elasticity and cushioning effect, also for the motion of shank provides flexible dynamic.If do not have toe joint in the below-knee prosthesis that people with disability uses, people with disability not only can not realize a lot of actions in motor process so, and the inadequate harmonizing nature of gait, has also reduced energy efficiency when walking.Multiformity and the naturality of the energy efficiency while moving in order to improve and increase motion, the below-knee prosthesis that contains toe joint becomes the new demand of user.Be a kind of toe joint of the breakaway-element sole based on sole and the disconnection of toe position with the below-knee prosthesis of toe joint at present, and the structure of this sole breakaway-element make the continuity of motion good not.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of good dynamic below-knee artificial limb with continuous flexible toe joint of continuity of motion.
For achieving the above object, the present invention takes following technical scheme: a kind of dynamic below-knee artificial limb with continuous flexible toe joint, is characterized in that: it comprises an overall sole, a toe joint and a below-knee prosthesis; Described toe joint comprises that one is arranged on the motor on described overall sole by support, described motor connects a connecting rod by a driving mechanism, the other end of described connecting rod is rotationally connected a briquetting, described briquetting is placed on the front end end face of described overall sole, and described below-knee prosthesis is fixedly connected with or is hinged on the rear portion end face of described overall sole.
The outer setting of described overall sole and toe joint have one with the corresponding footmuff of people's foot shape.
Described driving mechanism comprises the leading screw of the described motor of a connection, and described leading screw is threaded connection a feed screw nut, and the outer ring of described feed screw nut is fixedly connected with a slide block, and described slide block is fixedly connected with or hinged described connecting rod.
Being shaped as of described briquetting is cylindrical, disc and spherical in one, the center of briquetting and described connecting rod are rotationally connected.
Described overall sole comprises a upper sole being inclined to set, described upper sole below arranges a heel shell fragment, the front portion of described heel shell fragment is fixedly connected on the middle part of described upper sole bottom surface, between the rear portion of described heel shell fragment and described upper sole, leaves elasticity activity space.
Described overall sole comprises a sole, and the middle part of described sole has one and arches.
Described below-knee prosthesis is fixedly connected with or is hinged on the rear portion end face of described overall sole by a bearing.
The present invention is owing to taking above technical scheme, and it has the following advantages: 1, the present invention, owing to being provided with an overall sole, is provided with again a toe joint on overall sole; Therefore make toe joint and overall sole and below-knee prosthesis be combined as a whole, can complete the action of similar people's foot, thereby can make the motion continuity of user better, activity more freely.2, toe joint of the present invention is owing to being arranged on overall sole, and it is with respect to breakaway-element sole, and the seriality of motion is better; And overall sole is provided with deformation space to a certain degree, can store certain kinergety by deformation, then slowly discharge at the volley, thereby provide flexible dynamic, user can feel when walking lighter, comfortable for the shank motion of user.3, the present invention is owing to being provided with a motor for toe joint, it is the independent power source of toe joint, it is by controlling contact point different of briquetting and overall sole, toe joint not only can be operated under paces speed or the slower two kinds of duties of paces speed, and can make the maximum distortion of front end of overall sole also different, and then realize the adjustment of continuous flexible.4, the present invention is owing to being a circle by briquetting setting, and therefore briquetting motion continuously in mobile process, can realize the state that simulation human normal is walked better; Driving mechanism of the present invention can adopt variety of way simultaneously, and installation and use are very effectively convenient.5, toe joint of the present invention is owing to being arranged on overall sole, and has independently power source and driving mechanism, and therefore toe joint of the present invention can be used as a black box and on overall sole, installs or change.The present invention has advantages of that motion continuity is good, can provide continuous flexible power for the shank motion of user, can extensively be suitable for various patients with amputation in various degree and use.
Brief description of the drawings
Fig. 1 is structural representation of the present invention
Fig. 2 is a kind of structural representation of overall sole
Fig. 3 is the structural representation of another kind of overall sole
Fig. 4 is the schematic diagram of the present invention under a kind of duty
Fig. 5 is the inner laying structural representation of the present invention's entirety sole
Fig. 6 is the schematic diagram of the present invention under another kind of duty
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, the present invention includes an overall sole 1, a toe joint 2 and a below-knee prosthesis 3.
As shown in Figure 2, overall sole 1 of the present invention comprises a upper sole 11 being inclined to set, one heel shell fragment 12 is set below upper sole 11, and the front portion of heel shell fragment 12 is fixedly connected on the middle part of sole 11 bottom surfaces, between the rear portion of heel shell fragment 12 and upper sole 11, leaves elasticity activity space.
As shown in Figure 3, above-mentioned overall sole 1 can also only arrange a sole 13, and the middle part of sole 13 has higher arching.
As shown in Figure 4, toe joint 2 of the present invention comprises that one is arranged on the motor 21 on overall sole 1 by support, motor 21 connects a leading screw 22 by a shaft coupling, leading screw 22 is threaded connection a feed screw nut 23, the outer ring of feed screw nut 23 is fixedly connected with a slide block 24, slide block 24 is fixedly connected with or a hinged connecting rod 25, the hinged briquetting 26 of the other end of connecting rod 25, and briquetting 26 is placed on the front end end face of overall sole 1.
The shape of above-mentioned briquetting 26 can be cylindrical, disc and the shape such as spherical, and briquetting 26 center and connecting rod 25 are rotationally connected, and briquetting 26 can also carry out according to force request the equivalent arrangements of other continuous changes shape.
Below-knee prosthesis 3 of the present invention can adopt the below-knee prosthesis of various structure and materials in prior art, it can be fixedly connected with overall sole 1 by a bearing 31 or be hinged, its also can by other structure and connected mode realize with overall sole 1 be fixedly connected with or hinged.
In above-described embodiment, in overall sole 1 of the present invention, sole 13 or upper sole 11 and heel shell fragment all can adopt carbon fiber board to be made, as shown in Figure 5, the carbon fiber board of making overall sole 1 can adopt the carbon cloth of prior art to design through laying, but the carbon fiber board of the present invention's entirety sole 1 requires the carbon fiber in each adjacent carbon fibre cloth layer will be staggered angle to be laid, be that laying angle is different, such as α=68 °, laying angle of ground floor, β=24 °, laying angle of the second layer, γ=168 °, laying angle of the 3rd layer.Make like this can in different directions, carry out certain bending everywhere on artificial limb foot plate, realize the change flexibility function of artificial limb foot plate of the present invention.
In above-described embodiment, lower surface at overall sole 1 is provided with wearing layer, wearing layer can adopt polyurethane, is connected to the lower surface (as shown in Figure 3) of sole 13 by the mode of pasting or spray, or is connected to anterior bottom surface and heel shell fragment 12 bottom surfaces (as shown in Figure 2) of sole 11.
In above-described embodiment, can be at the outer setting of overall sole 1 and toe joint 2 one and the corresponding footmuff 4(of people's foot shape as shown in Figure 1), footmuff 4 can adopt polyurethane material to be made, and it has the performances such as corrosion-resistant, wear-resistant and electric insulation.
In the various embodiments described above, the motor-driven mechanism that motor 21 consists of leading screw 22, feed screw nut 23 and slide block 24, is to move forward and backward in order to promote connecting rod 25.This driving mechanism can be also the bevel gear (not shown) being driven by motor 21, bevel gear engages another bevel gear, the coaxial gear that connects of outfan of this another bevel gear, this gear engages with the tooth bar of a connection sliding block 24, slide block 24 connects connecting rod 25, and then promotion connecting rod 25 moves forward and backward.If the output shaft of motor 21 and connecting rod 24 directions of motion are vertically arranged on overall sole 1, driving mechanism of the present invention can also be a gear (not shown) that is connected to motor 21 outfans, this gear engages with the tooth bar of a connection sliding block 24, slide block 24 connects connecting rod 25, and then promotion connecting rod 25 moves forward and backward.
When working, the present invention comprises two kinds of duties, as shown in Figure 4, in the time that user walking speed is slower, toe joint 2 is operated in a limit state, now the flexibility of overall sole 1 of the present invention is larger, and the dotted line in figure is the front end of overall sole 1 maximum distortion in the time of a state.As shown in Figure 6, in the time that user walking speed is very fast, motor 21 in toe joint 2 drives the slide block 24 of driving mechanism to move forward by shaft coupling, and slide block 24 promotes briquetting 26 by connecting rod 25 and rotates forward, makes toe joint 2 change limit state b into from limit state a; Now, the flexibility ratio of overall sole 1 is little while being operated in limit state a, and the maximum distortion of the front end of overall sole 1 also reduces (as shown in the dotted line in figure).Also be that toe joint 2 of the present invention is continually varying with the contact point of overall sole 1, thereby make the also difference along with the position of briquetting 26 of maximum distortion of the front end of overall sole 1; Therefore, the present invention has not only realized the power that continuous flexible is provided for the shank of user, and can adapt to the demand of different crowd toe joint bionic movement.
The various embodiments described above are only for illustrating the present invention, and wherein structure, the connected mode etc. of each parts all can change to some extent, and every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (10)
1. a dynamic below-knee artificial limb with continuous flexible toe joint, is characterized in that: it comprises an overall sole, a toe joint and a below-knee prosthesis; Described toe joint comprises that one is arranged on the motor on described overall sole by support, described motor connects a connecting rod by a driving mechanism, the other end of described connecting rod is rotationally connected a briquetting, described briquetting is placed on the front end end face of described overall sole, and described below-knee prosthesis is fixedly connected with or is hinged on the rear portion end face of described overall sole.
2. a kind of dynamic below-knee artificial limb with continuous flexible toe joint as claimed in claim 1, is characterized in that: the outer setting of described overall sole and toe joint have one with the corresponding footmuff of people's foot shape.
3. a kind of dynamic below-knee artificial limb with continuous flexible toe joint as claimed in claim 1, it is characterized in that: described driving mechanism comprises the leading screw of the described motor of a connection, described leading screw is threaded connection a feed screw nut, the outer ring of described feed screw nut is fixedly connected with a slide block, and described slide block is fixedly connected with or hinged described connecting rod.
4. a kind of dynamic below-knee artificial limb with continuous flexible toe joint as claimed in claim 2, it is characterized in that: described driving mechanism comprises the leading screw of the described motor of a connection, described leading screw is threaded connection a feed screw nut, the outer ring of described feed screw nut is fixedly connected with a slide block, and described slide block is fixedly connected with or hinged described connecting rod.
5. a kind of dynamic below-knee artificial limb with continuous flexible toe joint as claimed in claim 1 or 2 or 3 or 4, is characterized in that: being shaped as of described briquetting is cylindrical, disc and spherical in one, the center of briquetting and described connecting rod are rotationally connected.
6. a kind of dynamic below-knee artificial limb with continuous flexible toe joint as claimed in claim 1 or 2 or 3 or 4, it is characterized in that: described overall sole comprises a upper sole being inclined to set, described upper sole below arranges a heel shell fragment, the front portion of described heel shell fragment is fixedly connected on the middle part of described upper sole bottom surface, between the rear portion of described heel shell fragment and described upper sole, leaves elasticity activity space.
7. a kind of dynamic below-knee artificial limb with continuous flexible toe joint as claimed in claim 5, it is characterized in that: described overall sole comprises a upper sole being inclined to set, described upper sole below arranges a heel shell fragment, the front portion of described heel shell fragment is fixedly connected on the middle part of described upper sole bottom surface, between the rear portion of described heel shell fragment and described upper sole, leaves elasticity activity space.
8. a kind of dynamic below-knee artificial limb with continuous flexible toe joint as claimed in claim 1 or 2 or 3 or 4, is characterized in that: described overall sole comprises a sole, the middle part of described sole has one and arches.
9. a kind of dynamic below-knee artificial limb with continuous flexible toe joint as claimed in claim 5, is characterized in that: described overall sole comprises a sole, the middle part of described sole has one and arches.
10. a kind of dynamic below-knee artificial limb with continuous flexible toe joint as claimed in claim 1 or 2 or 3 or 4, is characterized in that: described below-knee prosthesis is fixedly connected with or is hinged on the rear portion end face of described overall sole by a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210410393.4A CN102885663B (en) | 2012-10-24 | 2012-10-24 | Dynamic below-knee prosthesis with continuous flexible toe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210410393.4A CN102885663B (en) | 2012-10-24 | 2012-10-24 | Dynamic below-knee prosthesis with continuous flexible toe joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102885663A CN102885663A (en) | 2013-01-23 |
| CN102885663B true CN102885663B (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201210410393.4A Active CN102885663B (en) | 2012-10-24 | 2012-10-24 | Dynamic below-knee prosthesis with continuous flexible toe joint |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5139525A (en) * | 1989-07-31 | 1992-08-18 | Kristinsson Oessur | Prosthetic foot |
| DE10010302C2 (en) * | 2000-03-06 | 2002-07-18 | Gregor Horacek | prosthetic |
| DE10123691A1 (en) * | 2001-05-14 | 2002-11-21 | Gregor Horacek | Prosthetic foot consists of main and toes part, lower leg adapter, control unit embodying elastic elements, links, and foot plate |
| CN101346108A (en) * | 2005-12-22 | 2009-01-14 | 奥托·博克保健Ip两合公司 | Artificial foot |
| CN101912320A (en) * | 2010-08-24 | 2010-12-15 | 北京大学 | Dynamic below-knee artificial limb containing flexible dynamic ankle joints and toe joints |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020077706A1 (en) * | 2000-08-30 | 2002-06-20 | Phillips Van L. | Energy storing foot prosthesis with improved plantar flexion |
-
2012
- 2012-10-24 CN CN201210410393.4A patent/CN102885663B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5139525A (en) * | 1989-07-31 | 1992-08-18 | Kristinsson Oessur | Prosthetic foot |
| DE10010302C2 (en) * | 2000-03-06 | 2002-07-18 | Gregor Horacek | prosthetic |
| DE10123691A1 (en) * | 2001-05-14 | 2002-11-21 | Gregor Horacek | Prosthetic foot consists of main and toes part, lower leg adapter, control unit embodying elastic elements, links, and foot plate |
| CN101346108A (en) * | 2005-12-22 | 2009-01-14 | 奥托·博克保健Ip两合公司 | Artificial foot |
| CN101912320A (en) * | 2010-08-24 | 2010-12-15 | 北京大学 | Dynamic below-knee artificial limb containing flexible dynamic ankle joints and toe joints |
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| Publication number | Publication date |
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| CN102885663A (en) | 2013-01-23 |
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