GB2228201A - A self-suspending prosthesis for a long below-knee stump - Google Patents
A self-suspending prosthesis for a long below-knee stump Download PDFInfo
- Publication number
- GB2228201A GB2228201A GB8901552A GB8901552A GB2228201A GB 2228201 A GB2228201 A GB 2228201A GB 8901552 A GB8901552 A GB 8901552A GB 8901552 A GB8901552 A GB 8901552A GB 2228201 A GB2228201 A GB 2228201A
- Authority
- GB
- United Kingdom
- Prior art keywords
- prosthesis
- stump
- prosthesis according
- calf
- sole plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000002537 cosmetic Substances 0.000 claims abstract description 7
- 244000309466 calf Species 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 4
- 229920005573 silicon-containing polymer Polymers 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 abstract description 3
- 210000002414 leg Anatomy 0.000 description 5
- 210000002683 foot Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002266 amputation Methods 0.000 description 2
- 210000003484 anatomy Anatomy 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229920002323 Silicone foam Polymers 0.000 description 1
- 210000003447 amputation stump Anatomy 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 210000004744 fore-foot Anatomy 0.000 description 1
- 230000005021 gait Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 210000001872 metatarsal bone Anatomy 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/60—Artificial legs or feet or parts thereof
- A61F2/66—Feet; Ankle joints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/78—Means for protecting prostheses or for attaching them to the body, e.g. bandages, harnesses, straps, or stockings for the limb stump
- A61F2002/7862—Harnesses or straps
Landscapes
- Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention concerns a prosthesis for use by amputees who have a long below-knee stump, the prosthesis being constructed to include retention means in the form of a flexible container (A) which fits snugly on the stump, a rigid support structure (B) connected to a sole plate (C) whereby forces across the prosthesis-stump interface are effectively transmitted so as to allow the user to stand and walk, and cosmetic covering means (H) for giving the prosthesis pleasing external cosmetic characteristics. <IMAGE>
Description
A self-susDendina Prosthesis for a long below-knee Stump
Prostheses for amputees with long below-knee stumps and, in particular, for those who have been amputated using the Symes technique, are constructed with a socket which encloses the lower portion of the leg from the knee downwards. Where the distal portions of the long bones remain intact, the stump has a distal expansion. It is necessary that the design of the prosthesis accommodates this expansion. This is usually done by means of a removable panel in the socket wall or by the use of a compressible stump liner. Although long amputation stumps have certain desirable characteristics, viz. excellent weight-bearing, good suspension capability and low energy propulsion requirements, the prosthesis provided is often bulky and heavy, making it unacceptable to amputees who value appearance.Amputation may therefore be carried out at a higher level than is medically necessary purely on cosmetic grounds.
The aim of the present invention is to devise a prosthesis for distal levels of leg amputation - as well as a method of making it - which overcomes these problems.
With this aim in view, the invention is directed to a self-suspending prosthesis for a long below-knee stump which comprises means for retaining the prosthesis on the stump, means for transmitting forces across the prosthesis-stump interface, means for assisting propulsion, optional means for restoration or adjustment of leg length, and means for giving the prosthesis adequate cosmetic characteristics.
An example of a prosthesis in accordance with the invention is shown in the accompanying drawings, in which:
Fig. 1 is a perspective view from above of the
prosthesis; and
Fig. 2 is a vertical section through the
prosthesis with height-maintenance means added.
The illustrated prosthesis is designed for a long below-knee stump. As such, it should ideally perform five major functions as follows:
(1) Retention of the prosthesis to the stump;
(2) Adequate transmission of forces across the
prosthesis - stump interface, in particular
those generated by walking and standing;
(3) Adequate cosmesis;
(4) The assistance of propulsion; and
(5) Restoration of leg length.
The invention addresses these five requirements in the following way (1) Retention
A flexible container (A) is provided which fits snugly to the shape of the lower portion of the stump. It covers and encloses any bulbous and bony prominence, and it may contain indentations or have internal surface texture features which will enhance its performance.
Ventilation may also be provided as necessary. The container is preferably made of fabric which is reinforced to prevent damage during donning and doffing. Typically the container is made from a woven natural fabricreinforced silicon polymer. This may be integrated into the cosmesis or be separable but attached during use.
(2) Transmission of Forces
The stump container (A) is seated within a rigid support structure (B) which partially encloses it. This structure extends downwards into the sole portion of the prosthesis. It is connected to a sole plate (C) by means of a rigid or semi-flexible mounting (D) or by a continuation of the structure (B) into the sole plate.
The sole plate (C) transmits loads over the under-surface of the prosthetic foot and thus to the ground, allowing the user to stand and walk.
Additional support and stability is provided by a prosthetic calf-support (E). This is a rigid structure which is fastened at (P) to the support structure (B).
Alternatively, a pocket (F) (see Fig. 1) is formed in the posterior aspect of the support structure (B) which locates the lower portion of the calf-support and prevents unwanted movement. It extends up the calf typically, although not necessarily, for one-third the length of the calf and is held in place by a strap fastening (G) which passes around the stump. This support serves to maintain the position of the prosthesis with respect to the end of the stump, particularly in the medio-lateral plane.
(3) Cosmesis
The whole structure as described above is enclosed in a foot-shaped moulding (H). This may be of a standardised shape as known to practitioners of the existing art but is preferably individually matched to the surface anatomy, colour and size of the wearer. The cosmesis can be moulded in silicone polymers or in other suitable synthetic plastics material(s). In order to enhance the weight and flexure characteristics, lightweight elements (J), typically made of silicone foams or other lightweight materials, may be incorporated within the structure - in particular within the forefoot and in voids within the load transmission structure.
(4) Assistance of Propulsion
The sole plate (C) is fitted within the foot portion (H) of the prosthesis. It may be constructed from a standardized shape or individually fabricated to the prosthetic requirements of the wearer. Typically, the sole plate will extend from under the metatarsal heads posteriorly to the posterior border of the calcaneous (as compared with the normal anatomy of the human foot). It has a broad portion which narrows at the instep and is reinforced in this area to accommodate torsional and bending loads. It may also be locally reinforced in a manner and in materials determined by the practitioner in the art. It is then broadened posteriorly to accept a connector for the support structure (B) and has a short final portion (N) which is curved upwards.The connector may be a simple screwed arrangement or it may have allowance for adjustment by means of an adjustment plate (K) in the anterior-posterior, medial lateral and rotational planes by means of slots formed in the sole plate (C) itself or in a supporting plate. In addition, the connector may hinge or pivot by means of a flexible plate to allow for uneven walking surfaces to be accommodated and to allow a heel height adjuster to be incorporated. Alternatively, as stated above, the sole plate (C) and the support structure (B) may be fabricated together to form an integral unit.
(5) Height Maintenance
Clearly, for normal gait it is necessary for the stump plus prosthesis length to match the sound leg, or in the case of bilateral amputees to provide for both stumps plus their respective prostheses to match in length. This is accepted practice.
However, it is also important to recognise the part that the shoe plays as a component of the prosthetic system. Some amputees would wish to alter their heel height so that a range of shoes can be worn. As an addition to the device described above, therefore, a strut (L) extends in Fig. 2 from the posterior portion (N) of the sole plate (C) to meet the posterior calf support (E).
A slot in its upper portion channel or a series of holes in the calf support (E) allows a fixture on the upper portion of the strut to lock into it, thus changing the angle of the foot and therefore accommodating moderate changes in heel height and allowing a range of shoes to be worn. Safety is important in such a device and it should therefore be capable of locking positively. Therefore the incorporation of non-slip devices, such as rack tooth forms, or flexible liners within the channel or slot may be desirable. In the non-adjustable variant of this prosthesis, the posterior calf support (E) is fixed rigidly into the support structure. However, in the adjustable device limited anterior-posterior tilting is necessary at the junction of the support structure and calf support.
Bonding the sole plate (C) and other hard structural members to silicone is very difficult. This method therefore includes a technique in which, after fabrication, such members are covered with a woven fabric (usually a natural fibre material such as cotton). This is adhered to the hard surface. The silicone is forced into the fabric during the moulding process and thereby forms a stable interface.
Claims (18)
1. A self-suspending prosthesis for a long belowknee stump, comprising retaining means for retaining the prosthesis on the stump, force-transmitting means for transmitting forces across an interface between the prosthesis and the stump, propulsion-assisting means for assisting propulsion of the person with the stump during walking movement, and cosmetic covering means to give the prosthesis pleasing external cosmetic characteristics.
2. A prosthesis according to claim 1, wherein leg length adjustment means are provided for adjusting or restoring the effective length of the leg formed by the stump and the prosthesis.
3. A prosthesis according to claim 1 or claim 2, wherein the retaining means comprise a flexible container adapted to fit snugly on the lower portion of the stump.
4. A prosthesis according to claim 3, wherein the flexible container is made of fabric which is reinforced to prevent damage during donning and doffing of the prosthesis on the stump.
5. A prosthesis according to claim 4, wherein the fabric out of which the flexible container is made is woven from a natural fabric-reinforced silicone polymer.
6. A prosthesis according to any one of claims 3-5, wherein the flexible container is seated within a rigid support structure which partially encloses the container, the rigid support structure extending downwards into a sole portion of the prosthesis.
7. A prosthesis according to claim 6, wherein the rigid support structure is connected to a sole plate whereby the sole plate transmits loads over the undersurface of a foot portion of the prosthesis and thus to the ground so as to allow the person with the stump to stand and walk.
8. A prosthesis according to claim 6 or claim 7, wherein a prosthetic calf-support is fastened to the rigid support structure so as to extend at least partially up the length of the calf, the calf-support being provided with a strap fastening adapted to pass round the stump.
9. A prosthesis according to any one of claims 6-8, wherein a prosthetic calf-support has a lower portion thereof located in a pocket formed in the rigid support structure whereby unwanted movement of the calf-support is prevented, the calf-support being provided at an upper portion thereof with a strap fastening adapted to pass round the stump.
10. A prosthesis according to any preceding claim, wherein the cosmetic covering means comprise a foot-shaped moulding.
11. A prosthesis according to claim 10, wherein the foot-shaped moulding is a moulded silicone polymer.
12. A prosthesis according to claim 10 or claim 11, wherein the foot-shaped moulding includes lightweight elements incorporated within the moulding in order to enhance the weight and flexure characteristics of the moulding.
13. A prosthesis according to claim 7 or any claim appendant thereto, wherein the sole plate includes a broad portion which narrows at the instep and is reinforced in this area to accommodate torsional and bending loads.
14. A prosthesis according to claim 13, wherein the narrower instep portion of the sole plate leads into a broadened portion adapted to accept a connector for a rigid support structure, the sole plate having a short final portion which is curved upwards.
15. A prosthesis according to claim 14, wherein the connector is adapted for pivotal movement by means of a flexible plate in order to allow for uneven walking surfaces and to allow a heel height adjuster to be provided.
16. A prosthesis according to claim 2 or any claim appendant thereto, wherein the leg length adjustment means comprise a strut arranged to extend from a posterior portion of a sole plate in the prosthesis to meet a posterior calf-support, there being means for locking the strut to the calf-support in a variable manner to change the angle of a foot portion of the prosthesis, thereby accommodating moderate changes in heel height and allowing a range of shoes to be worn.
17. A prosthesis according to claim 16, wherein positive locking means are provided to lock the strut to the calfsupport.
18. A self-suspending prosthesis according to claim 1 substantially as described herein with reference to
Figure 1 or Figure 2 of the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8901552A GB2228201A (en) | 1989-01-25 | 1989-01-25 | A self-suspending prosthesis for a long below-knee stump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8901552A GB2228201A (en) | 1989-01-25 | 1989-01-25 | A self-suspending prosthesis for a long below-knee stump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8901552D0 GB8901552D0 (en) | 1989-03-15 |
| GB2228201A true GB2228201A (en) | 1990-08-22 |
Family
ID=10650541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8901552A Withdrawn GB2228201A (en) | 1989-01-25 | 1989-01-25 | A self-suspending prosthesis for a long below-knee stump |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2228201A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2433443A (en) * | 2005-12-20 | 2007-06-27 | Robert John Watts | Prosthesis |
| US20140039643A1 (en) * | 2012-01-31 | 2014-02-06 | Michael E. Tompkins | Systems and methods for prosthetic suspension system |
| US20150328020A1 (en) * | 2014-04-11 | 2015-11-19 | össur hf. | Prosthetic foot with removable flexible members |
| US9895240B2 (en) | 2012-03-29 | 2018-02-20 | Ösur hf | Powered prosthetic hip joint |
| US9949850B2 (en) | 2015-09-18 | 2018-04-24 | Össur Iceland Ehf | Magnetic locking mechanism for prosthetic or orthotic joints |
| US10195057B2 (en) | 2004-02-12 | 2019-02-05 | össur hf. | Transfemoral prosthetic systems and methods for operating the same |
| US10251762B2 (en) | 2011-05-03 | 2019-04-09 | Victhom Laboratory Inc. | Impedance simulating motion controller for orthotic and prosthetic applications |
| US10369019B2 (en) | 2013-02-26 | 2019-08-06 | Ossur Hf | Prosthetic foot with enhanced stability and elastic energy return |
| US10405996B2 (en) | 2007-01-19 | 2019-09-10 | Victhom Laboratory Inc. | Reactive layer control system for prosthetic and orthotic devices |
| US10543109B2 (en) | 2011-11-11 | 2020-01-28 | Össur Iceland Ehf | Prosthetic device and method with compliant linking member and actuating linking member |
| US10575970B2 (en) | 2011-11-11 | 2020-03-03 | Össur Iceland Ehf | Robotic device and method of using a parallel mechanism |
| US10695197B2 (en) | 2013-03-14 | 2020-06-30 | Össur Iceland Ehf | Prosthetic ankle and method of controlling same based on weight-shifting |
| US11007072B2 (en) | 2007-01-05 | 2021-05-18 | Victhom Laboratory Inc. | Leg orthotic device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4128903A (en) * | 1976-04-28 | 1978-12-12 | Landstingens Inkopscentral Lic, Ekonomisk Forening | Temporary walking aid for use after lower leg amputations |
| GB2032281A (en) * | 1978-10-12 | 1980-05-08 | Landstingens Inkopscentral | Artificial lower leg |
| US4225982A (en) * | 1978-12-04 | 1980-10-07 | Cochrane Ian W | Molded syme foot with attached stump socket |
| GB2187102A (en) * | 1986-02-28 | 1987-09-03 | Hanger & Co Ltd J E | Artificial foot |
| WO1988000815A1 (en) * | 1986-07-28 | 1988-02-11 | The Ohio Willow Wood Company, Inc. | Prosthetic foot |
| GB2202448A (en) * | 1987-03-26 | 1988-09-28 | Van Lehn Phillips | Lower leg prosthesis |
-
1989
- 1989-01-25 GB GB8901552A patent/GB2228201A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4128903A (en) * | 1976-04-28 | 1978-12-12 | Landstingens Inkopscentral Lic, Ekonomisk Forening | Temporary walking aid for use after lower leg amputations |
| GB2032281A (en) * | 1978-10-12 | 1980-05-08 | Landstingens Inkopscentral | Artificial lower leg |
| US4268922A (en) * | 1978-10-12 | 1981-05-26 | Landstingens Inkopscentral, Lic, Ekonomisk Forening | Prefabricatable, artificial lower leg |
| US4225982A (en) * | 1978-12-04 | 1980-10-07 | Cochrane Ian W | Molded syme foot with attached stump socket |
| GB2187102A (en) * | 1986-02-28 | 1987-09-03 | Hanger & Co Ltd J E | Artificial foot |
| WO1988000815A1 (en) * | 1986-07-28 | 1988-02-11 | The Ohio Willow Wood Company, Inc. | Prosthetic foot |
| GB2202448A (en) * | 1987-03-26 | 1988-09-28 | Van Lehn Phillips | Lower leg prosthesis |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10195057B2 (en) | 2004-02-12 | 2019-02-05 | össur hf. | Transfemoral prosthetic systems and methods for operating the same |
| GB2433443A (en) * | 2005-12-20 | 2007-06-27 | Robert John Watts | Prosthesis |
| WO2007071993A2 (en) * | 2005-12-20 | 2007-06-28 | Robert John Watts | Foot prosthesis |
| WO2007071993A3 (en) * | 2005-12-20 | 2007-08-23 | Robert John Watts | Foot prosthesis |
| GB2433443B (en) * | 2005-12-20 | 2011-01-12 | Robert John Watts | Prosthesis |
| US11007072B2 (en) | 2007-01-05 | 2021-05-18 | Victhom Laboratory Inc. | Leg orthotic device |
| US10405996B2 (en) | 2007-01-19 | 2019-09-10 | Victhom Laboratory Inc. | Reactive layer control system for prosthetic and orthotic devices |
| US11607326B2 (en) | 2007-01-19 | 2023-03-21 | Victhom Laboratory Inc. | Reactive layer control system for prosthetic devices |
| US10299943B2 (en) | 2008-03-24 | 2019-05-28 | össur hf | Transfemoral prosthetic systems and methods for operating the same |
| US11185429B2 (en) | 2011-05-03 | 2021-11-30 | Victhom Laboratory Inc. | Impedance simulating motion controller for orthotic and prosthetic applications |
| US10251762B2 (en) | 2011-05-03 | 2019-04-09 | Victhom Laboratory Inc. | Impedance simulating motion controller for orthotic and prosthetic applications |
| US10543109B2 (en) | 2011-11-11 | 2020-01-28 | Össur Iceland Ehf | Prosthetic device and method with compliant linking member and actuating linking member |
| US10575970B2 (en) | 2011-11-11 | 2020-03-03 | Össur Iceland Ehf | Robotic device and method of using a parallel mechanism |
| US9161848B2 (en) * | 2012-01-31 | 2015-10-20 | Hanger, Inc. | Systems and methods for prosthetic suspension system |
| US20140039643A1 (en) * | 2012-01-31 | 2014-02-06 | Michael E. Tompkins | Systems and methods for prosthetic suspension system |
| US9895240B2 (en) | 2012-03-29 | 2018-02-20 | Ösur hf | Powered prosthetic hip joint |
| US10940027B2 (en) | 2012-03-29 | 2021-03-09 | Össur Iceland Ehf | Powered prosthetic hip joint |
| US11285024B2 (en) | 2013-02-26 | 2022-03-29 | Össur Iceland Ehf | Prosthetic foot with enhanced stability and elastic energy return |
| US10369019B2 (en) | 2013-02-26 | 2019-08-06 | Ossur Hf | Prosthetic foot with enhanced stability and elastic energy return |
| US11576795B2 (en) | 2013-03-14 | 2023-02-14 | össur hf | Prosthetic ankle and method of controlling same based on decreased loads |
| US10695197B2 (en) | 2013-03-14 | 2020-06-30 | Össur Iceland Ehf | Prosthetic ankle and method of controlling same based on weight-shifting |
| CN106456339A (en) * | 2014-04-11 | 2017-02-22 | 奥索有限责任公司 | Prosthetic foot with removable flexible members |
| US10390974B2 (en) * | 2014-04-11 | 2019-08-27 | össur hf. | Prosthetic foot with removable flexible members |
| US11446166B2 (en) | 2014-04-11 | 2022-09-20 | Össur Iceland Ehf | Prosthetic foot with removable flexible members |
| US20150328020A1 (en) * | 2014-04-11 | 2015-11-19 | össur hf. | Prosthetic foot with removable flexible members |
| US10722386B2 (en) | 2015-09-18 | 2020-07-28 | Össur Iceland Ehf | Magnetic locking mechanism for prosthetic or orthotic joints |
| US9949850B2 (en) | 2015-09-18 | 2018-04-24 | Össur Iceland Ehf | Magnetic locking mechanism for prosthetic or orthotic joints |
| US11707365B2 (en) | 2015-09-18 | 2023-07-25 | Össur Iceland Ehf | Magnetic locking mechanism for prosthetic or orthotic joints |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8901552D0 (en) | 1989-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11844710B2 (en) | Adjustable prosthetic limb system | |
| US4555817A (en) | Prosthetic foot and ankle joint | |
| US6991657B1 (en) | Adjustable prosthetic socket | |
| EP2775967B1 (en) | Modular prosthetic sockets and methods for making same | |
| GB2228201A (en) | A self-suspending prosthesis for a long below-knee stump | |
| US20130218297A1 (en) | Prosthetic foot shell enabling rapid conversion between shoe and barefoot walking | |
| Wing et al. | Energy-storing prosthetic feet | |
| US6238437B1 (en) | Able-bodied artificial foot phosthesis testing apparatus | |
| US6165228A (en) | Foot prosthesis | |
| CA2857513C (en) | Prosthetic socket centering block | |
| Schmalz et al. | A comparison of different prosthetic knee joints during step over step stair descent | |
| EP0195186B1 (en) | Stabilizing orthesis | |
| EP2809275A1 (en) | Prosthetic foot shell enabling rapid conversion between shoe and barefoot walking | |
| GB2274994A (en) | Assessment prosthesis and prosthetic leg | |
| GB2433443A (en) | Prosthesis | |
| Abrahamson et al. | Prescription options for the below knee amputee: A review | |
| Nickel et al. | Improving Footwear Options for Persons with Lower Limb Amputations | |
| Kowalske et al. | Rehabilitation of the Amputee | |
| Lange | Partial Foot and Syme's Amputations and Prosthetic Designs | |
| WO2021154183A1 (en) | A rotation adapter to be used for prostheses | |
| Carroll et al. | Transtibial Prosthetic Designs | |
| Edelstein et al. | Bilateral Amputations and Prostheses | |
| Edelstein et al. | Transtibial Prostheses | |
| Knapp | Lecture 19: Lower-Extremity Amputations and Prosthetics Prosthetics: Second of Three Parts | |
| Lévesque et al. | An Endoskeletal Hip Disarticulation Prosthesis for the Toddler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |