CN101518473A - Hydraulic locking device of ankle joint of artificial foot with adjustable heel height - Google Patents
Hydraulic locking device of ankle joint of artificial foot with adjustable heel height Download PDFInfo
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- CN101518473A CN101518473A CN200910048503A CN200910048503A CN101518473A CN 101518473 A CN101518473 A CN 101518473A CN 200910048503 A CN200910048503 A CN 200910048503A CN 200910048503 A CN200910048503 A CN 200910048503A CN 101518473 A CN101518473 A CN 101518473A
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Abstract
The invention relates to a hydraulic locking device of an ankle joint of an artificial foot with an adjustable heel height. The hydraulic locking device comprises a main hydraulic cylinder, a piston rod, a piston and an ankle joint connecting rod connected with the piston rod. An upper main cavity and a lower main cavity of two sides of the piston in the main hydraulic cylinder are communicated through a hydraulic oil communication mechanism; and the inside of the hydraulic oil communication mechanism is provided with a locking and unlocking mechanism. The hydraulic locking device utilizes the incompressibility of hydraulic oil so that the position of the piston in a hydraulic cylinder is changed up and down along the flow of the hydraulic oil in a hydraulic oil passage, further drives the ankle joint to rotate so as to change the angle of a base plate of the artificial foot relative to the level, thereby achieving the aim of changing the heel height of the artificial foot. In addition, as the hydraulic locking device can carry out stepless regulation on the flow rate of the hydraulic oil, the hydraulic locking device can carry out stepless regulation on the heel height of the artificial foot till the piston achieves the largest journey. Moreover, a locking pin valve, an adjusting knob and a pin valve fixing sleeve are added into the hydraulic oil passage; and the hydraulic locking device can conveniently adjust and lock the heel height through the rotation of the adjusting knob and can realize the replacement and use of the base plate of the artificial foot.
Description
Technical field
The present invention relates to a kind of bionical false ankle joint arrangement, especially a kind of high micro hydraulic cylinder and a kind of bionical false foot ankle articulation mechanism of regulating of false heel that be used for based on hydraulic locking and adjusting.
Background technology
For artificial leg, the quality of its quality, performance is no doubt important, and correctly equally very important but wearer is installed artificial limb, a very important index wherein is exactly correct to line.Artificial leg must just can reach the purpose that is fit to amputee's use through to the line adjustment.Improper to line, can have a strong impact on that patient stands and walking process in balance and stable.The static alignment of artificial leg is exactly to determine receptive cavity, each joint of the lower extremity, the relative position of false foot and the height of angle and artificial limb in three dimensions.And the amputee wears the back height of footwear are direct factors correct to line that influence artificial leg.If wear the different footwear of height heels that design when making artificial limb, will cause the incorrect of prosthesis alignment, cause the accident.Such example was once arranged, and the artificial limb of making was to be undertaken line by the high heel of 3cm originally, but because the patient wears walking shoes (being about 0cm with height) all the year round in the future, the result has caused genu recurvatum.Therefore, be bound to ask when making artificial limb patient clearly often wear footwear with high, and arbitrarily do not change with exactlying and wear the footwear of following height different paying of must enjoin the patient when patient uses.If really need to change height heels, must carry out the line adjustment again to artificial limb.This brings inconvenience for daily life, particularly likes comrade women who wears high heels.If but adopt the false foot that can regulate at any time with height just more convenient, oneself just can carry out line.Now the product that has similar functions is on a small quantity arranged in the world, more famous has
The Elation of company
TMAnd Freedom
The Runway of company
TMBut all one of there are the following problems at least for existing in the market every kind of Related product: 1) non-exchange different sole with other functions, and a kind of sole that can only use the said firm to match, and it can only reach 5cm with high scalable ultimate range; 2) need by allowing the link of ankle joint slide in a cambered way to change the ankle joint anglec of rotation, this mode needs other people help just can finish adjusting usually, to such an extent as to difficulty reaches best to the line effect, and makes troubles to user; 3) step-less adjustment is followed high within the specific limits.
Summary of the invention
The present invention is the technical problem that will solve with high step-less adjustment and locking thereof, and a kind of hydraulic lock assembly with high adjustable false ankle joint is provided, this device safety, effectively, reliable, convenient and can be installed on the standard ankle joint joint, have and follow high step-less adjustment easily, and can realize the replacing use of false sole.
For achieving the above object, technical scheme of the present invention is: a kind of hydraulic lock assembly with high adjustable false ankle joint comprises the main hydraulic cylinder body of micro hydraulic cylinder, the piston rod in the main chamber of main hydraulic cylinder body, be fixed in the piston on the piston rod, the ankle joint connecting rod that is connected with piston rod; Shake the ankle, false ankle joint cover is characterized in: in the main hydraulic cylinder body, be interconnected by the fluid means of communication between the upper and lower main chamber of piston both sides, locking and release mechanism are installed in the fluid means of communication.
The fluid means of communication comprises the main hydraulic cylinder body, access panels is installed, there is a plane on main hydraulic cylinder body right side, in the plane, descend both sides that the fluid path of the connection piston both sides main chamber of a horizontal direction is respectively arranged, between two fluid paths, be provided with the semi-circular recesses of a vertical direction, fixedly mount access panels on the semi-circular recesses; The access panels upside has a horizontal fluid path, links to each other with the horizontal direction path of main hydraulic cylinder upside; Access panels downside left end is drilled with the horizontal fluid path of a not break-through, and links to each other with the horizontal direction path of main hydraulic cylinder downside; Access panels has the semi-circular recesses of a vertical direction, and semi-circular recesses is communicated with the horizontal fluid path of upper and lower both sides, and with the main hydraulic cylinder body on vertically semi-circular recesses merge into the circular fluid path of a vertical direction.
Locking comprises stop pin with release mechanism, the locking needle-valve, the needle-valve fixed cover, spring shim, adjusting knob, wherein, the locking needle-valve places the horizontal fluid path of access panels upside, and with the access panels matched in clearance, cooperate by taper seat between the upside path of locking needle-valve left end and main hydraulic cylinder body to contact, right-hand member is threaded with adjusting knob outward; The little disc of adjusting knob left end withstands the plane of channel plate upside left end minor diameter through hole and right-hand member diameter through hole formation; The channel plate right side is withstood in right-hand member big disk left side, regulate cannelure installation O RunddichtringO on the rotating disk left end roundlet cylinder, the needle-valve fixed cover is fixed on the channel plate by the screw of both sides, front and back, and its inner face closely contacts by spring shim with adjusting knob right-hand member big disk right side; Stop pin is installed in the screwed hole of access panels upper surface, the terminal insertion in the locking needle-valve left end square groove.
Respectively be drilled with a through hole in two branches of false ankle joint set upper side, be connected by rotating shaft with micro hydraulic cylinder upper end two through hole respectively.
The rotating shaft of shaking the ankle by the circle centre position of shaking the ankle is connected with false ankle joint cover, and the top arc surface of shaking the ankle is close to false ankle joint and is overlapped lower end inner circular cambered surface.
The ankle joint connecting rod is fixed in the right-hand member groove of shaking the ankle by square button; Ankle joint connecting rod square tube hole is connected with piston rod by rotating shaft.
The beneficial effect that the present invention is compared with prior art had is: the present invention utilizes the Incoercibility of fluid to make the position of piston in hydraulic cylinder with fluid flowing and change up and down in the fluid path, and then the drive ankle joint rotates, to change false foot sole angle with respect to the horizontal plane, change the high purpose of false heel thereby reach.And stepless regulated owing to carrying out to the fluid flow, so can carrying out step-less adjustment to false heel height, this utility model reaches range until piston.In addition, in the fluid path, add locking needle-valve, adjusting knob and needle-valve fixed cover, can be by the rotation adjusting knob very easily to regulating and lock with height.
With hydraulic cylinder and rotation ankle separate design, make the rotation ankle become main stressed member, reduced requirement of strength to hydraulic cylinder, reduced cost.
To rotate ankle and contact by two arc surfaces, and guarantee to follow high making still can obtain comparatively approaching structure preferably and intensity stabilization performance when rotating ankle and rotating the change of anklet contact position because of adjusting with rotating anklet.
Ankle joint is designed to part circular, rotating shaft by circle centre position is connected with false ankle joint cover, and design of micro hydraulic cylinder and the top of shaking the ankle, and do not participate in the connection of shank pipe in the vertical direction, change the height of ankle joint center of rotation thereby effectively fallen, it can be installed and adaptation and higher false foot apart from false foot.
Rotation anklet top and rotation ankle bottom are respectively arranged with standard interface, can join with the shank pipe and the false foot sole of great majority listing, have greatly improved the suitability.
Reach the purpose that locks with release fluid path by the fine rotation adjusting knob, simple, allow user finish at any time easily and regulate with high function.And this utility model is provided with spring shim and needle-valve fixed cover in the adjusting knob right side, can be that adjusting knob moves slight distance to right-hand member, thereby hold out against spring shim behind locking pin block of valve stand oil liquid path, locks fully to guarantee the fluid path.
Description of drawings
Fig. 1 is the false ankle joint arrangement of a hydraulic cylinder damping overview;
Fig. 2 is a micro hydraulic cylinder cutaway view;
Fig. 3 is the false ankle joint arrangement of a hydraulic cylinder damping partial sectional view;
Fig. 4 is with high regulating effect contrast view.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1, the hydraulic lock assembly with high adjustable false ankle joint of the present invention comprises: micro hydraulic cylinder 1, piston rod 2, ankle joint connecting rod 3 shakes the ankle 4, the two-way joint 5 of standard, standard ankle joint joint 6, common false foot 7, false ankle joint cover 8, standard shank pipe 9.
Be interconnected by the fluid means of communication between the upper and lower main chamber of piston 17 both sides.In the installation access panels 16 of fluid means of communication locking and release mechanism are installed.
The fluid means of communication comprises main hydraulic cylinder body 18, access panels 16 is installed, there is a plane on main hydraulic cylinder body 18 right sides, in the plane, descend both sides that the fluid path of the connection piston 17 both sides main chamber of a horizontal direction is respectively arranged, between two fluid paths, be provided with the semi-circular recesses of a vertical direction, fixed installation access panels 16 on the semi-circular recesses; Access panels 16 upsides have a horizontal fluid path, link to each other with the horizontal direction path of main hydraulic cylinder body 18 upsides; Access panels 16 downside left ends are drilled with the horizontal fluid path of a not break-through, and link to each other with the horizontal direction path of main hydraulic cylinder body 18 downsides; Access panels 16 has the semi-circular recesses of a vertical direction, and semi-circular recesses is communicated with the horizontal fluid path of upper and lower both sides, and goes up the circular fluid path that vertical semi-circular recesses is merged into a vertical direction with main hydraulic cylinder body (18).
Micro hydraulic cylinder 1 as accompanying drawing 2, with boring a through hole in the middle of the main hydraulic cylinder body 18, constitutes hydraulic cylinder main chamber.Again the plane is processed on main hydraulic cylinder body 18 right sides, respectively get through the main chamber of fluid path UNICOM of a horizontal direction in upper and lower both sides, this plane, and upside path right-hand member is processed into internal conical surface.Between these two paths, get through the semi-circular recesses of a vertical direction.In this side access panels 16 is installed.Access panels 16 upsides are got through a horizontal fluid path, link to each other with the horizontal direction path of main hydraulic cylinder body 18 upsides; The bigger through hole of this path right-hand member boring one diameter.Access panels 16 downside left ends bore a horizontal fluid path, but not break-through links to each other with the horizontal direction path of main hydraulic cylinder body 18 downsides; Get through the semi-circular recesses of a vertical direction again in access panels 16, the horizontal fluid path of the upper and lower both sides of UNICOM, and with main hydraulic cylinder body 18 on vertically semi-circular recesses merge into the circular fluid path of a vertical direction.A vertical screwed hole is got through, its upper horizontal fluid path of UNICOM near the left side in access panels 16 upper surfaces.Locking needle-valve 12 left ends are processed into the cone that equates with main hydraulic cylinder body 18 upper horizontal path right-hand member internal conical surface cone-apex angles.Near horizontal square groove of this cone right flank processing.Its right-hand member threading, and get through a deep hole left from the right side, the deep hole left end is got through a vertical through hole, will lock needle-valve 12 and stretch to main hydraulic cylinder body 18 upside fluid paths from access panels 16 upside fluid paths, and the right-hand member external screw thread is connected with adjusting knob 15 through hole female threads.Locking needle-valve 12 diameters are slightly less than access panels 16 upper horizontal fluid passage diameters.The little disc of adjusting knob 15 left ends withstands the plane of channel plate 16 upside left end minor diameter through holes and right-hand member diameter through hole formation; Channel plate 16 right sides are withstood in right-hand member big disk left side.Regulate cannelure installation O RunddichtringO on the rotating disk 15 left end roundlet cylinders, needle-valve fixed cover 13 is fixed on the channel plate 16 by the screw of both sides, front and back, its internal end surface closely contacts by spring shim 14 with adjusting knob 15 right-hand member big disk right sides, will lock needle-valve 12 overall fixed.Piston 17 is fixed on the piston rod 2, and together is installed in the main hydraulic cylinder body 18, and the O RunddichtringO is installed on it, and main chamber is divided into upper and lower two chambers.Stop pin 11 is installed in the access panels 16 upper surface screwed holes, the terminal insertion in the locking needle-valve 12 left end square grooves.Hydraulic cylinder loam cake 10 is connected with main hydraulic cylinder body 18 upper end through hole female threads by screw thread.Hydraulic cylinder lower cover 19 is connected in main hydraulic cylinder body 18 lower surfaces.Through hole bolt 20 is installed in hydraulic cylinder lower cover 19 lower surfaces, and the O RunddichtringO is installed between hydraulic cylinder lower cover 19, the bolt 20.
False ankle joint cover 8 as accompanying drawing 1, respectively is drilled with through hole in two branches of upper end, is connected by rotating shaft with micro hydraulic cylinder 1 upper end two through hole respectively.
Shake the ankle 4, as accompanying drawing 3, rotating shaft by 4 circle centre positions of shaking the ankle and false ankle joint cover 8 are connected, and the 4 top arc surfaces of shaking the ankle are close to false ankle joint and are overlapped 8 lower end inner circular cambered surfaces.Ankle joint connecting rod 3 is fixed in the 4 right-hand member grooves of shaking the ankle by square button.Ankle joint connecting rod 3 top through holes are connected with piston rod 2 by rotating shaft.
When micro hydraulic cylinder 1 unlocks, when promptly the main chamber of piston 17 and main hydraulic cylinder 18 can relative motion in the accompanying drawing 2, false ankle joint arrangement overall structure was a slider-crank mechanism, and degree of freedom is 1.False ankle joint cover 8 is a frame, piston rod 2,4 cranks of respectively doing for oneself of shaking the ankle, and micro hydraulic cylinder 1 is a slide block.When regulating when high, shake the ankle and 4 rotate around its center of circle, can drive coupled false foot around its center of circle rotation, thereby change with high, as higher the adjustings back contrast effect in the accompanying drawing 4, false sole 21 is with the h of height from Fig. 4 A
1Be increased to the h among Fig. 4 B
24 be designed to part circular shaking the ankle like this, the rotating shaft that goes out by the center of circle is connected with false ankle joint cover 8, and micro hydraulic cylinder 1 design with shake the ankle 4 top, and do not change the connection of standard shank pipe 9 in the vertical directions, change the height of ankle joint center of rotation thereby effectively reduce, make it can approach the position of the normal ankle joint of human body more apart from false foot.
When micro hydraulic cylinder 1 locking, when promptly the main chamber of piston 17 and main hydraulic cylinder body 18 cannot relative motion in the accompanying drawing 2, the false foot ankle of the hydraulic cylinder damping of this utility model joint arrangement overall structure was a three-link mechanism, and degree of freedom is 0.False ankle joint cover 8 be a frame, and shaking the ankle 4 respectively is a connecting rod, piston rod 2 and micro hydraulic cylinder 1 common formation one connecting rod.This moment, whole device was in the lock state, and did not have relative motion between each member, finished with high the adjusting, can should follow high footwear with commutation.The present invention with micro hydraulic cylinder 6 with shake the ankle 4 separate design, making shakes the ankle 4 becomes main stressed member, has reduced the requirement of strength to micro hydraulic cylinder 1 and parts thereof, has reduced cost.And will shake the ankle and 4 contact by two arc surfaces with false ankle joint cover 8, guaranteed because of adjust with high make shake the ankle 4 and false ankle joint still can obtain comparatively approaching structure preferably and intensity stabilization performance when overlapping the change of 8 contact positions.
The locking of micro hydraulic cylinder 1 and release mechanism comprise as shown in Figure 2: hydraulic cylinder loam cake 10, stop pin 11, locking needle-valve 12, needle-valve fixed cover 13, spring shim 14, adjusting knob 15, channel plate 16, piston 17, main hydraulic cylinder body 18, hydraulic cylinder lower cover 19, through hole bolt 20.Locking needle-valve 12 places the horizontal fluid path of access panels 16 upsides, and with access panels 16 matched in clearance, cooperate by taper seat between the upside path of locking needle-valve 12 left ends and main hydraulic cylinder body 18 to contact, right-hand member is threaded with adjusting knob 15 outward; The little disc of adjusting knob 15 left ends withstands the plane of channel plate 16 upside left end minor diameter through holes and right-hand member diameter through hole formation; Channel plate 16 right sides are withstood in right-hand member big disk left side, regulate cannelure installation O RunddichtringO on the rotating disk 15 left end roundlet cylinders, needle-valve fixed cover 13 is fixed on the channel plate 16 by the screw of both sides, front and back, and its inner face closely contacts by spring shim 14 with adjusting knob 15 right-hand member big disk right sides; Stop pin 11 is installed in the access panels 16 upper surface screwed holes, the terminal insertion in the locking needle-valve 12 left end square grooves.
At first above-mentioned member such as accompanying drawing 2 installed, after be full of fluid in two horizontal fluid paths forming jointly with the upper and lower chamber of hydraulic cylinder and by main hydraulic cylinder body 18 and channel plate 16 and the vertical fluid path.
Locking needle-valve 12 right-hand members and adjusting knob 15 endoporus are by being threaded, inserting locking needle-valves 12 near left end place square grooves by stop pin 11, and this well width and stop pin 11 equal diameters limit the rotation that locks needle-valve 12 with this.So, adjusting knob 15, locking needle-valve 12, stop pin 11 have constituted a helicoidal gear.By needle-valve fixed cover 13 and spring shim 14 adjusting knob 15 is held out against in channel plate 16 right sides again.Rotating adjusting knob 15 this moment can be moved to the left locking needle-valve 12 levels by worm drive, thereby the cone of locking needle-valve 12 left ends is advanced, and fits in the taper seat of main hydraulic cylinder body 18 upper horizontal path right-hand members.Thereby the fluid exchange path of blocking-up hydraulic cylinder upper chamber and lower chambers makes piston 17 and the main chamber can't relative motion, thereby makes the locking of shaking the ankle, and then fixing with height.When needs are regulated when high, need only adjusting knob 15 to counter-rotation, the cone that is locking needle-valve 12 left ends separates with the taper seat of main hydraulic cylinder 18 upper horizontal path right-hand members, expose certain interval, open the fluid exchange path of hydraulic cylinder upper chamber and lower chambers, make piston 17 and main chamber that relative motion can take place, and then make and shake the ankle and to rotate around its center of circle, thereby regulate with high.
This utility model reaches the purpose that locks with release fluid path by the fine rotation adjusting knob, allows user finish at any time simply, easily and regulates with high function.And this utility model is provided with spring shim and needle-valve fixed cover in the adjusting knob right side, even behind locking pin block of valve stand oil liquid path, adjusting knob moves slight distance to right-hand member, also can be by the spring shim effect, the locking needle-valve is held out against on the internal conical surface of main hydraulic cylinder body 18, lock fully to guarantee the fluid path.
Claims (6)
1. hydraulic lock assembly with high adjustable false ankle joint, the main hydraulic cylinder body (18) that comprises micro hydraulic cylinder (1), piston rod (2) in main hydraulic cylinder body (18) main chamber is fixed in the piston (17) on the piston rod (2), the ankle joint connecting rod (3) that is connected with piston rod (2); Shake the ankle (4), false ankle joint cover (8) is characterized in that: in the described main hydraulic cylinder body (18), be interconnected by the fluid means of communication between the upper and lower main chamber of piston (17) both sides; Locking and release mechanism are installed in the described fluid means of communication.
2. the hydraulic lock assembly with high adjustable false ankle joint according to claim 1, it is characterized in that: described fluid means of communication comprises main hydraulic cylinder body (18), access panels (16) is installed, there is a plane on main hydraulic cylinder body (18) right side, in the plane, descend both sides that the fluid path of connection piston (17) the both sides main chamber of a horizontal direction is respectively arranged, between two fluid paths, be provided with the semi-circular recesses of a vertical direction, fixedly mount access panels (16) on the semi-circular recesses; Access panels (16) upside has a horizontal fluid path, links to each other with the horizontal direction path of main hydraulic cylinder (18) upside; Access panels (16) downside left end is drilled with the horizontal fluid path of a not break-through, and links to each other with the horizontal direction path of main hydraulic cylinder (18) downside; Access panels (16) has the semi-circular recesses of a vertical direction, and semi-circular recesses is communicated with the horizontal fluid path of upper and lower both sides, and goes up the circular fluid path that vertical semi-circular recesses is merged into a vertical direction with main hydraulic cylinder body (18).
3. the hydraulic lock assembly with high adjustable false ankle joint according to claim 2, it is characterized in that: described locking and release mechanism comprise stop pin (11), locking needle-valve (12), needle-valve fixed cover (13), spring shim (14), adjusting knob (15), wherein, locking needle-valve (12) places the horizontal fluid path of access panels (16) upside, and with access panels (16) matched in clearance, cooperate by taper seat between the upside path of locking needle-valve (12) left end and main hydraulic cylinder body (18) to contact, right-hand member is threaded with adjusting knob (15) outward; The little disc of adjusting knob (15) left end withstands the plane of channel plate (16) upside left end minor diameter through hole and right-hand member diameter through hole formation; Channel plate (16) right side is withstood in right-hand member big disk left side, regulate cannelure installation O RunddichtringO on rotating disk (15) the left end roundlet cylinder, needle-valve fixed cover (13) is fixed on the channel plate (16) by the screw of both sides, front and back, and its inner face closely contacts by spring shim (14) with adjusting knob (15) right-hand member big disk right side; Stop pin (11) is installed in the screwed hole of access panels (16) upper surface, the terminal insertion in locking needle-valve (12) the left end square groove.
4. the hydraulic lock assembly with high adjustable false ankle joint according to claim 1 is characterized in that: respectively be drilled with a through hole in two branches of described false ankle joint cover (8) upper end, be connected by rotating shaft with micro hydraulic cylinder (1) upper end two through hole respectively.
5. the hydraulic lock assembly with high adjustable false ankle joint according to claim 1, it is characterized in that: described shaking the ankle (4) is connected with false ankle joint cover (8) by the rotating shaft of (4) circle centre position of shaking the ankle, and (4) top arc surface of shaking the ankle is close to false ankle joint cover (8) lower end inner circular cambered surface.
6. the hydraulic lock assembly with high adjustable false ankle joint according to claim 1, it is characterized in that: described described ankle joint connecting rod (3) is fixed in by square button in (4) the right-hand member groove of shaking the ankle; Ankle joint connecting rod (3) top through hole is connected with piston rod (2) by rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910048503A CN101518473A (en) | 2009-03-30 | 2009-03-30 | Hydraulic locking device of ankle joint of artificial foot with adjustable heel height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910048503A CN101518473A (en) | 2009-03-30 | 2009-03-30 | Hydraulic locking device of ankle joint of artificial foot with adjustable heel height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101518473A true CN101518473A (en) | 2009-09-02 |
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ID=41079414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910048503A Pending CN101518473A (en) | 2009-03-30 | 2009-03-30 | Hydraulic locking device of ankle joint of artificial foot with adjustable heel height |
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| CN (1) | CN101518473A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8574312B2 (en) | 2006-12-14 | 2013-11-05 | Blatchford Products Limited | Prosthetic ankle joint mechanism |
| US8628585B2 (en) | 2007-12-14 | 2014-01-14 | Blatchford Products Limited | Lower limb prosthesis |
| US9132023B2 (en) | 2006-12-14 | 2015-09-15 | Blatchford Products Limited | Prosthetic ankle and foot combination |
| CN107007381A (en) * | 2017-04-14 | 2017-08-04 | 张策 | Artificial limb |
| CN107397615A (en) * | 2017-07-25 | 2017-11-28 | 北京航空航天大学 | A kind of active ankle-joint artificial limb of single-degree-of-freedom based on Closed Hydraulic Driving system |
| CN111084682A (en) * | 2018-10-24 | 2020-05-01 | 北京工道风行智能技术有限公司 | Bionic foot with adjustable heel |
| CN111407472A (en) * | 2020-04-21 | 2020-07-14 | 胡蓓 | Foot-shank part simulation artificial limb mechanical arm special for disabled people |
| WO2021102625A1 (en) * | 2019-11-25 | 2021-06-03 | 苏州西捷克缓冲科技有限公司 | Adjustable rotation damper |
-
2009
- 2009-03-30 CN CN200910048503A patent/CN101518473A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11529246B2 (en) | 2006-12-14 | 2022-12-20 | Blatchford Products Limited | Prosthetic ankle and foot combination |
| US8740991B2 (en) | 2006-12-14 | 2014-06-03 | Blatchford Products Limited | Prosthetic ankle joint mechanism |
| US9132023B2 (en) | 2006-12-14 | 2015-09-15 | Blatchford Products Limited | Prosthetic ankle and foot combination |
| US9433513B2 (en) | 2006-12-14 | 2016-09-06 | Blatchford Products Limited | Prosthetic ankle joint mechanism |
| US8574312B2 (en) | 2006-12-14 | 2013-11-05 | Blatchford Products Limited | Prosthetic ankle joint mechanism |
| US9999526B2 (en) | 2006-12-14 | 2018-06-19 | Blatchford Products Limited | Prosthetic ankle joint mechanism |
| US10130495B2 (en) | 2006-12-14 | 2018-11-20 | Blatchford Products Limited | Prosthetic ankle and foot combination |
| US11679008B2 (en) | 2006-12-14 | 2023-06-20 | Blatchford Products Limited | Prosthetic ankle joint mechanism |
| US8628585B2 (en) | 2007-12-14 | 2014-01-14 | Blatchford Products Limited | Lower limb prosthesis |
| CN107007381A (en) * | 2017-04-14 | 2017-08-04 | 张策 | Artificial limb |
| CN107397615A (en) * | 2017-07-25 | 2017-11-28 | 北京航空航天大学 | A kind of active ankle-joint artificial limb of single-degree-of-freedom based on Closed Hydraulic Driving system |
| CN107397615B (en) * | 2017-07-25 | 2019-02-22 | 北京航空航天大学 | A kind of active ankle-joint artificial limb of single-degree-of-freedom based on Closed Hydraulic Driving system |
| CN111084682A (en) * | 2018-10-24 | 2020-05-01 | 北京工道风行智能技术有限公司 | Bionic foot with adjustable heel |
| WO2021102625A1 (en) * | 2019-11-25 | 2021-06-03 | 苏州西捷克缓冲科技有限公司 | Adjustable rotation damper |
| CN111407472A (en) * | 2020-04-21 | 2020-07-14 | 胡蓓 | Foot-shank part simulation artificial limb mechanical arm special for disabled people |
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Open date: 20090902 |