CN2614650Y

CN2614650Y - Artificial feet device with ankle joints unit

Info

Publication number: CN2614650Y
Application number: CN 03244840
Authority: CN
Inventors: 陈森荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-04-09
Filing date: 2003-04-09
Publication date: 2004-05-12
Anticipated expiration: 2013-04-09

Abstract

The utility model discloses a foot prosthesis device linked up at the bottom end part of the lower limb trunk with an ankle unit which can reach to the energy-storage and the elastic buffer, comprising a basis pedunculus unit and an ankle unit arranged in the basis pedunculus unit, wherein the basis pedunculus unit comprises a basis pedunculus part, a baseboard part sleeved in the internal of the basis pedunculus part and an elastic cell which guarantees the baseboard part recover to the normal state after deflection, the ankle unit comprises a fixed base fixedly provided in the baseboard part, a pin joint part movably joint with the fixed base, an ankle base connected between the lower limb trunk and the ankle base and a spring part arranged between the ankle base and the baseboard part.

Description

A kind of have a unitary adopted foot unit of ankle

Technical field

This utility model relates to a kind of artifucial limb, and what be meant a kind of bottom that is attached at zeugopodium especially has a unitary adopted foot unit of ankle.

Background technology

As shown in Figure 1, a kind of ankle unit (as No. the 75209511st, Taiwan patent) is attached between a sole unit 1 and the following zeugopodium (figure does not show).This ankle unit comprises: steering unit that is installed in 1 inside, sole unit 2, one are installed in the toggle unit 3 of steering unit 2 tops, axostylus axostyle 4 and two buffer stoppers 5 that are arranged between toggle unit 3 and the sole unit 1 that can link steering unit 2 and toggle unit 3.Steering unit 2 has collar portion that a screw rod that is vertical 201, one be fixed in screw rod 201 tops 202, movable pivot and along continuous straight runs and is set in bearing holder (housing, cover) 203 and two soft liners 204 that are interposed in respectively between collar portion 202, bearing holder (housing, cover) 203 and the toggle unit 3 in the collar portion 202, and axostylus axostyle 4 along continuous straight runs run through and link toggle unit 3, collar portion 202, bearing holder (housing, cover) 203 and soft liner 204.Buffer stopper 5 is made with the vulcanie material, can provide toggle unit 3 to be hubbed on 1 top, sole unit reposefully, and produces buffering elasticity and held stationary when relative sole unit 1, toggle unit 3 are pivoted.Though using this ankle unit can be so that the relative sole of lower limb bar unit 1 reaches universal pivot purpose, but still has following disappearance:

One, sole unit 1 is made with carbon steel or hard plastic material mostly, not only texture is harder, and pliability and toughness are also relatively poor, for the user of the adopted foot unit of installing, do not meet the design of ergonomics in the use, the action of walking is also comparatively unnatural;

Two, be provided with in horizontal direction because of the unitary steering unit 2 of ankle and axostylus axostyle 4, the volume that takies is big, so sole unit 1 must be preset can be for the space of ccontaining steering unit 2, cause the volume of sole unit 1 relatively large, and ankle whole unit member is more, volume is big, also comparatively bothers when making assembly;

Three, the suture that blocks lower limb generally directly is set on the artifucial limb, so the relative sole of zeugopodium unit 1 produces when pivoting instantly, toggle unit 3 is compressed on the resilience counteracting force that is produced on the buffer stopper 5, can be passed to the amputation suture through following zeugopodium, thereby cause the discomfort of user.

The utility model content

What but the purpose of this utility model was to provide a kind of reduced volume, simplified structure and tool elastic buffer function has a unitary adopted foot unit of ankle.

For achieving the above object, take following technical scheme:

The utlity model has the unitary adopted foot unit of ankle, be engaged on the bottom of a following zeugopodium, this justice foot unit comprises a sole unit and an ankle unit that is installed on this sole unit.

The sole unit has baseboard and flexible member that is installed on this baseboard that a base foot part, made from elastic foaming material is set in this base foot part inside, this baseboard is made and is had rearward end that a leading section, one and leading section be opposite setting and one and extends to the end face of rearward end by leading section along length direction with the material of deflection, rearward end leading section relatively produces deflected and reverts to normal condition by deflected.Being concaved with one on the end face of adjacent front end portion extends and storage tank that can ccontaining flexible member along length direction.

The ankle unit has a holder that is installed in the rearward end of this baseboard, activity and is hubbed on articulated part on the holder, one and is attached at ankle seat between articulated part and the following zeugopodium and the spring part between two end faces that are arranged on ankle seat and baseboard.This holder, have one to plane that should end face, one perpendicular to planar axis and a respective axes and in the plane articulated section is set, setting is extended along axis in the articulated section, and have one and be the movable pivot part that is hubbed on the articulated section, pivot part and articulated section are concavo-convex complementation.Ankle seat and this articulated part connect to one, and have one corresponding to the unitary bottom surface of sole.This shows that the sole unit can reach the energy storage purpose, and utilize the ankle unit to pivot and the elastic buffer purpose so that the relative sole of lower limb bar unit reaches movable.

According to technique scheme, the universal ankle device of this utility model is under normal condition, and holder and articulated part articulate mutually, and utilizes spring unit to support and go up bridge-jointing unit, then can make down zeugopodium stably interconnection, can guarantee that user firmly stands and be applicable to any landform with the sole unit; Under walking states, utilize the mating reaction of two articulated sections, can make down zeugopodium, go up bridge-jointing unit and the relative sole of articulated part unit, holder produces movingly partially, utilize the spring unit that is provided with can realize buffering and reply when moving partially, thereby help the balance of user maintenance health when walking.

Simultaneously, pivot part utilizes cooperating of end cambered surface and top cambered surface when cooperating with the articulated section, also can make positioning seat with respect to adjusting seat and produce an Accommodation, is adjusted when assembling with the different demands that adapt to user.The utlity model has the unitary adopted foot unit of ankle, baseboard has flexibility, flexibility, toughness, and the energy storage characteristic that flexible member is equipped with etc. not only have reduced volume, simplified structure and make advantages such as assembly is easy, also can produce the elastic buffer effect.These characteristics make that user is comparatively stable, comfortable in use and also meet the design simplification member purpose of ergonomics.

Description of drawings

Fig. 1 is the existing unitary three-dimensional exploded view of a kind of ankle;

Fig. 2 is a three-dimensional exploded view, and first preferred embodiment that the utlity model has the unitary adopted foot unit of ankle is described;

Fig. 3 is the combination section of first preferred embodiment, illustrates that this ankle unit is at a normal condition;

Fig. 4 is the action diagram of this first preferred embodiment, illustrates that ankle seat and articulated part produce moving partially with respect to holder and sole unit;

Fig. 5 is the three-dimensional exploded view with second preferred embodiment of the unitary adopted foot unit of ankle of the present utility model;

Fig. 6 is the combination section of second preferred embodiment, illustrates that this ankle unit is at a normal condition;

Fig. 7 is the profile along the 7-7 among Fig. 6.

Embodiment

Below in conjunction with accompanying drawing, specific embodiment and first preferred embodiment in detail this utility model is described in detail:

As shown in Figure 2, be first preferred embodiment of the present utility model, have the unitary adopted foot unit of ankle and be engaged on the bottom of a following zeugopodium 300, and comprise a sole unit 100 and an ankle unit 200 that is installed on the sole unit 100.

Sole unit 100 has a base foot part 10, made from foam material and is set in the baseboard 20 of base foot part 10 inside, a flexible member 30 that is installed in baseboard 20 inside.

Base foot part 10 has the back heel 12 of a foot palm part 11, and foot palm part 11 opposite settings and end face by back heel 12 was arranged with and extended to foot palm part 11 towards inside the portion that covers 13.

Baseboard 20 is made with the plastic cement material of deflection, and leading section 21, one with a corresponding foot palm part 11 and leading section 21 rearward end 22, that are opposite setting and corresponding back heel 12 by leading section 21 along length direction extend to the end face 23 of rearward end 22, an adjacent front end portion 21 and be arranged with storage tank 24 on end face 23, fixedly spiral shell seat 25 that is installed in rearward end 22 and two be arranged with respectively at the fixing shrinkage pool 26 of spiral shell seat 25 forward and backward both sides, storage tank 24 can be located for 30 installings of elasticity element.

Ankle unit 200 comprise one be arranged in holder 40 in the fixing spiral shell seat 25, and the movable articulated part that articulates of holder 40 50, one be attached at down ankle seat 60 between zeugopodium 300 and the articulated part 50 and two be arranged on ankle seat 60 and baseboard 20 between spring part 70.

Holder 40 have a plane 41, one corresponding to end face 23 perpendicular to the axis L on plane 41 and respective axes L and from the plane 41 articulated sections that are arranged with towards inside 42, articulated section 42 is the shrinkage pool shape.

Articulated part 50 extend to be provided with and to make shaft-like along axis L, have one and movablely be hubbed on the articulated section 42 and be globular pivot part 51 and one be the threaded shank 52 of opposite setting with pivot part 51.

It is fixing that ankle seat 60 is that the threaded shank 52 with articulated part 50 is spirally connected mutually, and have one with respect to a bottom surface 61 of end face 23 and two lockings on bottom surface 61 and be symmetrical in the nose bar 62 of shrinkage pool 26 respectively.

Spring part 70 is an example with the compression spring, and be installed in respectively bottom surface 61 between, the restriction that is subjected to these projections 62 can obtain the location.

As shown in Figure 3, under normal condition, the elastic force of flexible member 30 discharges naturally, and the foot palm part 11 of base foot part 10 and back heel 12 steady subsides are touched on the ground.And this time zeugopodium 300 utilizes ankle seat 60 and articulated part 50 to link, sole unit 100 utilizes holder 40 and articulated part 50 to articulate mutually, utilize spring part 70 to be arranged between ankle seat 60 and the baseboard 20 again, then can make down zeugopodium 300 stably interconnection with sole unit 100, thereby can be, and be applicable to any landform so that user is stable stands.

As shown in Figure 4, when user in when walking, in order to keep the steadily of centre of gravity purpose, the forward foot in a step that is positioned at the place ahead is normal condition, and the back heel 12 that is positioned at the rear foot base foot part 10 at rear must a little upwards be lifted, that is to say that the rearward end of baseboard 20 22 can produce a kind of deflected with respect to leading section 21, and flexible member 30 is in confined state and stores back and releases elastic force.Simultaneously, also can produce the action that is pivoted relative to each other between following zeugopodium 300 and the sole unit 100.At this moment, utilize the mating reaction of pivot part 51 and articulated section 42, it is moving partially to make down that zeugopodium 300, ankle seat 60 and articulated part 50 produce with respect to sole unit 100, holder 40, utilizes the setting of spring part 70 not only can store back the elastic force of releasing when moving partially, more can reach the elastic buffer purpose.

During the action of walking continues to carry out, when the rear foot is desired to step out forward and user lifts adopted foot unit when liftoff, flexible member 30 is stored returns and to release elastic force the rearward end 22 of baseboard 20 is oppositely moved partially with respect to leading section 21, and baseboard 20 reverts to normal condition by deflected.Simultaneously, following zeugopodium 300 also will interlock ankle seat 60, articulated part 50 pivots with respect to sole unit 100 and holder 40, and reverts back to the state of Fig. 3.

Therefore, the adopted foot unit of this utility model first embodiment has the following advantages:

One, baseboard 20 has flexibility, flexibility, toughness, and the energy storage characteristic that possesses of flexible member 30, and these characteristics make that user is comparatively stable, comfortable in use and also meet the design of ergonomics;

Two, ankle unit 200 along axis L uprightly be provided with and be attached at down zeugopodium 300 and sole unit 100 between, not only shared volume is little, and the volume of sole unit 100 also diminishes relatively, and ankle unit 200 can reach and simplify the member purpose, make in the assembly also more or less freely.

Three, zeugopodium 300 relative sole unit 100 produce pivot instantly, and in the time of on bottom surface 61 one of them spring part 70 of compacting of ankle seat 60, this utility model utilizes the being compressed property of spring part 70, can cushion the counteracting force of resilience, and user is comparatively comfortable when using.

Four, this utility model can be replaced the spring part 70 with conditions such as various outer diameter, the number of turns, free heights according to the body weight and the user demand of user.

In addition, as Fig. 5, Fig. 6, shown in Figure 7, be second embodiment of this utility model justice foot unit: comprise a sole unit 100 ', an ankle unit 200 ' and a hydraulic cushion unit 400 that is arranged between ankle unit 200 ' and the sole unit 100 '.Sole unit 100 ' has member and the combination kenel that is similar to first embodiment with ankle unit 200 ', and hydraulic cushion unit 400 has two piston 80 airtight belled cylinder bodies 81 and hydraulic pressure valve seats 90 that are connected with these cylinder bodies 81 such as the piston 80, two on the bottom surface 61 ' that is installed in ankle seat 60 ', and hydraulic pressure valve seat 90 inside have two passage 91 and adjustment screws 92 that are arranged in passage 91 junctions adjustably of being communicated with and being communicated with each other with cylinder body 81.Utilize the setting of this hydraulic cushion unit 400,200 ' relative sole unit 100 ', ankle unit is produced when pivoting, reach buffered purpose.

In sum, the utlity model has the unitary adopted foot unit of ankle, not only have reduced volume, simplified structure and make advantages such as assembly is easy, also can produce the elastic buffer effect, so can reach the purpose of this utility model really.

The above, it only is preferred embodiment of the present utility model, so can not limit the scope that this utility model is implemented with this, be every, should all still belong to the content of this utility model patent disclosure according to this utility model is applied for a patent and novel description is done simple equivalent variation and modification.

Claims

1. one kind has the unitary adopted foot unit of ankle, is engaged on the bottom of zeugopodium, it is characterized in that, comprises:

A sole unit, has base foot part, a baseboard and the flexible member made from elastic foaming material that is installed on the described baseboard that the material with deflection that is set in this base foot part inside is made, baseboard has rearward end that a leading section, one and described leading section be opposite setting and one and extends to the end face of described rearward end by described leading section along the sole direction, is concaved with one on the end face of contiguous described leading section and extends and storage tank that can ccontaining this flexible member along the sole direction;

An ankle unit, be installed on the described sole unit, have a holder that is installed in the rearward end of described baseboard, activity and be hubbed on articulated part on the described holder, one and be attached at described articulated part and described down between the zeugopodium and have corresponding to the spring part between the ankle seat of bottom surface, described sole unit and the end face that is arranged on described ankle seat and baseboard; The plane, one that described holder has a described end face of correspondence is perpendicular to described planar axis and a described axis of correspondence and be arranged on articulated section on the described plane, described articulated part extend to be provided with along axis, and establishes an activity and be hubbed on and be concavo-convex complementary pivot part on the described articulated section.

2. according to claim 1 have a unitary adopted foot unit of ankle, it is characterized in that, comprise a hydraulic cushion unit that is arranged between ankle unit and the sole unit, described hydraulic cushion unit has piston, several and the airtight belled cylinder body of described piston and a hydraulic pressure valve seat that is connected with described cylinder body on several bottom surfaces that are installed in described ankle seat, and described hydraulic pressure valve seat inside has several passages that is communicated with described cylinder body and is communicated with each other.

3. according to claim 2 have a unitary adopted foot unit of ankle, it is characterized in that, establishes the adjustment screw at the unitary hydraulic pressure valve base channel of described hydraulic cushion junction.

4. according to claim 1 have a unitary adopted foot unit of ankle, it is characterized in that, the unitary flexible member of described sole is the compression spring.