US3784988A - Leg prosthesis with resiliently mounted stump socket - Google Patents

Leg prosthesis with resiliently mounted stump socket Download PDF

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Publication number
US3784988A
US3784988A US00253468A US3784988DA US3784988A US 3784988 A US3784988 A US 3784988A US 00253468 A US00253468 A US 00253468A US 3784988D A US3784988D A US 3784988DA US 3784988 A US3784988 A US 3784988A
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United States
Prior art keywords
casing
sleeve
leaf spring
prosthesis
leg prosthesis
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.)
Expired - Lifetime
Application number
US00253468A
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English (en)
Inventor
T Trumpler
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Individual
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Individual
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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
    • A61F2/60—Artificial legs or feet or parts thereof
    • 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
    • A61F2/7812—Interface cushioning members placed between the limb stump and the socket, e.g. bandages or stockings for the limb stump
    • 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
    • A61F2/80—Sockets, e.g. of suction type
    • 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
    • A61F2002/6614—Feet
    • 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
    • A61F2002/6614—Feet
    • A61F2002/6657—Feet having a plate-like or strip-like spring element, e.g. an energy-storing cantilever spring keel

Definitions

  • a leg prosthesis comprises a stiff upright leather cas- [511 im. ci. A61f 1/o2,A61f1/04 A61f1/o8 mg a sleeve freely Suspended from the upper rim [58] Fiend of Search 3/l7 19 thereof and extending into the casing with free elastic 33 35 2 play in all directions, and a foot affixed to the lower end of the casing.
  • the foot includes a sole and a sepa [56] References Cited rate ankle part, a leaf spring extending through the foot in a horizontally inclined plane and connecting UNITED STATES PATENTS the foot parts, and a rubber cushion mounting the 197,741 12/1877 Rldsdale 3/17 R X ends 0f [he leaf spring, 2,025,835 l2/l935 Traulman 3/17 R 2,253,040 8/1941 Martino 3/17 R X 9 Claims, 2 Drawing Figures PATENTEDJAN 15 1974 SHEET 10F 2 PMENTEUJAH 15 19M SHEET 2 OF LEG PROSTHESIS WITH RESILIENTLY MOUNTED STUMP SOCKET
  • the present invention relates to improvements in leg prostheses. It is designed specifically to eliminate the two weakest points in conventional prostheses.
  • the known prostheses do not permit the foot joint to function properly.
  • all known artificial feet are more or less centrally fixed to the shaft of the prosthesis and, when the foot is under load, the connecting parts rub against each other. This rubbing causes considerable wear. As soon as this wear between the relatively moving parts permits a play between the parts, the entire foot connection becomes progressively looser.
  • a stiff upright prosthesis'leather casing having an upper rim and a lower end, a sleeve extending into the casing and so suspended from the upper rim thereof as to have free elastic play in all directions in relation thereto without making contact with the casing, and a prosthesis foot affixed to the lower end of the casing.
  • the foot includes a sole part having a forward toe portion, an ankle part separate from the sole part, a leaf spring extending along the entire foot to the forward toe portion in a horizontally inclined plane, the leaf spring connecting the sole and ankle parts, and an elastic rubber cushion mounting at least one end of the leaf spring.
  • the sleeve preferably also consists of leather and it is preferred to mount both ends of the leaf spring on elastic cushions.
  • This combination provides a leg prosthesis of very good properties which not only permits even double amputees easier walking but also makes it possible to engage in such sports as skiing, tennis, mountain climbing, running, broad jump, etc.
  • FIG. l is an elevational side view, partly in section, of a leg prosthesis according to this invention.
  • FIG. 2 is an enlarged section of the prosthesis foot.
  • the leg prosthesis is shown to comprise a leg portion 1 including a stiff upright leather prosthesis casing la having an upper rim and a lower end.
  • a sleeve 2 extends into the casing and is so suspended from the upper rim of casing la as to have free elastic play in all directions in relation to the casing without making contact therewith. This suspension is accomplished by an outwardly bent upper edge of the sleeve defining a groove of U-shaped cross section for suspending the sleeve from the upper rim of the casing.
  • An annular rubber insert 4 is positioned in the groove and bonded to the sleeve so as to produce an elastic bearing for the sleeve on the casing rim, the insert 4 having a strip portion 5 spacing the sleeve from the casing about 2 or 3 cm. for permitting contactless free play.
  • the rubber bearing will generally hold the sleeve stable in the casing so that its motions in the casing are minimal, the bearing being of hard rubber.
  • the stump of the amputee is received in the sleeve.
  • the minimal free play of the sleeve in a horizontal direction suffices fully for elastic absorption of the lateral impacts caused by movement of the stump during the constantly uneven load on the prosthesis, combined with the vertical impact absorption in the annular space 3 between casing la and sleeve 2. Due to the limited elastic movement of the sleeve with the stump, which extends thereinto, while the prosthesis is under load, there is no friction or pressure against the stump, thus avoiding irritations.
  • this elastic suspension of a stump receiving sleeve within the stiff casing constitutes a prosthesis within a prosthesis, the sleeve being made of a yielding or elastic material, such as soft leather, and being movable freely with the stump while the casing is stiff and load-bearing to provide a support for the sleeve.
  • the elastic sleeve can be shaped according to the shape of the stump since its material is flexible.
  • the sleeve may be accurately shaped by making a plaster cast of thel stump and using the cast to shape the sleeve. This sleeve is then freely suspended in the stiff casing so that it has free play therein without ever contacting the casing wall.
  • the hard rubber bearing 4 dampens the free play of the sleeve in the casing and the elasticity of the sleeve material aids in the movement of the sleeve to conform fully to that of the stump.
  • the rubber bearing permits movement in a lateral as well as a vertical direction, operating as a hard shock absorber in all directions when a load is applied thereagainst. The load is evenly distributed over the entire prosthesis due to the shock absorber as well as the elastically conforming shape of the sleeve to the stump.
  • the gauge of the sleeve wall is relatively thin to provide for good conformity to the stump and even distribution of the weight thereover but it is thick enough to provide a good support for the stump. ln this manner, the weight remains evenly distributed in all angular positions, which is particularly important for the amputee in walking steps, climbing mountains, and like up or down movements, as well as in running, jumping, bicycling, etc. During all such movements, the impacts of the stump are elastically absorbed by the universal elastic motion of the freely suspended sleeve.
  • the prosthesis foot is affixed to the lower end of the casing and includes a sole part 10 having a forward toe portion, and an ankle part 20 separate from the sole part.
  • a leaf spring 13 extends along the entire foot to the forward toe portion in a horizontally inclined plane and connects the sole and ankle parts.
  • the leaf spring is preferably made of a glass fiber reinforced plastic, for instance Scotch-Ply, having a thickness of 6 mm.
  • a pair of threaded bolts 15, l and 16, 16 respectively connect the leaf spring to the rear portion of the ankle part 20 and the ball portion of the sole part 10.
  • a flat plate 15a with threaded bores receives the outer threaded ends of the pair of bolts 15, 15 at the rear portion for tightening the bolts, and a pair of nuts 17, 17 receive the outer threaded ends of the pair of bolts 16, 16 at the ball portion for tightening these bolts.
  • the ball portion of the sole part 10 has recesses receiving the nuts 17, 17, and washers are interposed between the nuts and the recesses.
  • the r'ear end of the leaf spring is first attached to the ankle portion, the plates a being inserted into a slot in the ankle part to receive the ends of bolts 15, 15 and the bolts then being tightened.
  • the sole part l0 is then mounted on the bolts 16, 16 and the nuts 17, 17 are tightened to fasten the sole part to the leaf spring and thus to connect the two foot parts.
  • the sole and ankle parts define a space therebetween in the assembled condition, the spring leaf 13 extending diagonally therebetween through this space 14.
  • the front portion of the leaf spring rests on the front toe portion of the sole part and an elastic rubber cushion 18 is mounted over the leaf spring and engages the ankle part 20.
  • an elastic rubber cushion 19 is mounted between the rear end of the leaf spring and the sole portion so that the ends of the leaf spring are elastically cushioned in respect of the foot parts in opposite directions.
  • the elastic cushioning not only improves the mobility of the foot but also increases the life of the prosthesis. It is particularly advantageous for maximum effect if the cushion 18 adjacent the forward toe portion is smaller and less elastic, i.e., of harder rubber, than the rear cushion 19.
  • the front and rear portions of the foot carry protective caps 1l and 12, respectively.
  • a particularly useful material for the leaf spring 13 is a glass fiber sheet having a fatigue strength or resistance to bending of 10,000 kg/sq.cm. Such a material is commercially available under the trademark Scotch-Ply" and remains useful for many years. A leaf spring of this material makes the foot wearable almost indefinitely and securely unites the two foot parts.
  • leg prosthesis of the present invention is not only very hardy in use, low in cost, light in weight and insensitive to atmospheric conditions, such as humidity, but also is smoother in function than any known leg prosthesis, operates without noise, involves no need for adjustments and gives ideal freedom of movement in lateral directions.
  • the artificial foot is ideally suited for skiing.
  • a lower leg prosthesis comprising l. a stiff tubular casing, upright in the normal operating position of the prosthesis, said casing having an upper rim and a lower end,
  • resilient insert means interposed in said groove between said rim and said edge portion for suspending said sleeve from said casing while permitting movement of said sleeve relative to said casing
  • a prosthetic foot including a. an ankle part affixed to said lower end,
  • said parts vertically bounding a free space therebetween, said sole part having a forward toe portion,
  • an elongated leaf spring having two longitudinal ends respectively fastened to said ankle part and to said sole part and freely extending through said space
  • said resilient insert means includes an annular rubber member vertically interposed between said rim and said edge portion, a strip portion of said rubber member being horizontally interposed between said casing and said sleeve.
  • leg prosthesis of claim 2 further comprising a pair of threaded bolts respectively connecting the leaf spring to the rear portion of the ankle part and the ball portion of the sole part, a flat plate with threaded bores receiving the outer threaded ends of the pair of bolts at the rear portion of the ankle part for tightening the bolts, and a pair of nuts receiving the outer threaded ends of the pair of bolts at the ball portion for tightenl ing the bolts.
  • leg prosthesis of claim 4 wherein the ball portion of the sole part has recesses receiving the pair of nuts, and washers are interposed between the nuts and the recesses.
  • said foot further includes another elastic cushion vertically interposed between the other longitudanl end of said leaf spring and said one part.

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  • Health & Medical Sciences (AREA)
  • Transplantation (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Prostheses (AREA)
US00253468A 1971-05-18 1972-05-15 Leg prosthesis with resiliently mounted stump socket Expired - Lifetime US3784988A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2124564A DE2124564C3 (de) 1971-05-18 1971-05-18 Unterschenkelprothese

Publications (1)

Publication Number Publication Date
US3784988A true US3784988A (en) 1974-01-15

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ID=5808203

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Application Number Title Priority Date Filing Date
US00253468A Expired - Lifetime US3784988A (en) 1971-05-18 1972-05-15 Leg prosthesis with resiliently mounted stump socket

Country Status (6)

Country Link
US (1) US3784988A (de)
AT (1) AT336772B (de)
DE (1) DE2124564C3 (de)
FR (1) FR2138082B1 (de)
IT (1) IT955609B (de)
SE (1) SE392810B (de)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274166A (en) * 1979-05-03 1981-06-23 Chambers Gary R Socket or cast brim
US4865612A (en) * 1986-07-28 1989-09-12 The Ohio Willow Wood Company, Inc. Prosthetic foot
US5112356A (en) * 1988-03-04 1992-05-12 Chas A. Blatchford & Sons Limited Lower limb prosthesis with means for restricting dorsi-flexion
US5314497A (en) * 1991-12-23 1994-05-24 Fay John N Apparatus and method for sealing a liner to a prosthesis
US5387246A (en) * 1989-04-13 1995-02-07 Phillips; Van L. Prosthetic ski leg
US5728177A (en) * 1994-08-15 1998-03-17 Flex-Foot, Inc. Prosthesis with foam block ankle
US6206934B1 (en) 1998-04-10 2001-03-27 Flex-Foot, Inc. Ankle block with spring inserts
US6478826B1 (en) 1998-04-10 2002-11-12 Van L. Phillips Shock module prosthesis
US6511512B2 (en) 1998-04-10 2003-01-28 Ossur Hf Active shock module prosthesis
US20030093158A1 (en) * 2000-10-26 2003-05-15 Phillips Van L. Foot prosthesis having cushioned ankle
US20050038525A1 (en) * 1999-05-24 2005-02-17 The Ohio Willow Wood Company Shock absorbing prosthetic foot for use with prosthetic ankle
US20050038524A1 (en) * 2003-08-15 2005-02-17 Jonsson Orn Ingvi Low profile prosthetic foot
US6899737B1 (en) 1998-04-10 2005-05-31 Van L. Phillips Foot prosthesis having cushioned ankle
US20050267603A1 (en) * 2004-05-28 2005-12-01 Lecomte Christophe G Foot prosthesis with resilient multi-axial ankle
US20050284160A1 (en) * 2004-06-25 2005-12-29 Johnson Controls Technology Company Method of and apparatus for evaluating the performance of a control system
US20060058893A1 (en) * 2004-05-28 2006-03-16 Clausen Arinbjorn V Method of measuring the performance of a prosthetic foot
US20100004757A1 (en) * 2008-07-01 2010-01-07 Ossur Hf Smooth rollover insole for prosthetic foot
US20100042228A1 (en) * 2008-08-18 2010-02-18 The Ohio Willow Wood Company Prosthetic foot
US20110213471A1 (en) * 2010-02-26 2011-09-01 össur hf Prosthetic foot with a curved split
US8961618B2 (en) 2011-12-29 2015-02-24 össur hf Prosthetic foot with resilient heel
US9028559B2 (en) 2011-09-26 2015-05-12 össur hf Frictionless vertical suspension mechanism for prosthetic feet
US9439786B2 (en) 2012-08-01 2016-09-13 össur hf Prosthetic ankle module
USD795433S1 (en) 2015-06-30 2017-08-22 Össur Iceland Ehf Prosthetic foot cover
USD797292S1 (en) 2014-06-30 2017-09-12 össur hf Prosthetic foot plate
US10821007B2 (en) 2016-12-01 2020-11-03 Össur Iceland Ehf Prosthetic feet having heel height adjustability
USD915596S1 (en) 2018-04-10 2021-04-06 Össur Iceland Ehf Prosthetic foot with tapered fasteners
US10980648B1 (en) 2017-09-15 2021-04-20 Össur Iceland Ehf Variable stiffness mechanism and limb support device incorporating the same
US11446164B1 (en) 2017-09-15 2022-09-20 Össur Iceland Ehf Variable stiffness mechanisms

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE420048B (sv) * 1980-01-28 1981-09-14 Ossur Kristinsson Anordning for anbringning av en ben- eller armprotes pa en amputationsstump
FR2640499A1 (fr) * 1988-12-15 1990-06-22 Palfray Michel Nouvelle structure de pied prothetique
EP0444883A1 (de) * 1990-02-28 1991-09-04 CHAS. A. BLATCHFORD & SONS LIMITED Kunstfuss

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US197741A (en) * 1877-12-04 Improvement in artificial limbs
US464356A (en) * 1891-04-01 1891-12-01 Artificial limb
US668634A (en) * 1899-11-07 1901-02-26 Alexander Gault Artificial limb.
US981090A (en) * 1910-04-18 1911-01-10 Harry W Karn Artificial foot.
DE361972C (de) * 1922-10-20 Wilhelm Mull Kuenstlicher Fuss
US2025835A (en) * 1934-04-30 1935-12-31 Trautman Ray Artificial leg
US2253040A (en) * 1940-01-05 1941-08-19 Philip A Martino Socket for artificial limbs

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE301849C (de) *
DE495377C (de) * 1928-01-28 1930-04-05 Julius Loth Verfahren zur Herstellung von hohlen kuenstlichen Gliedern
AT240519B (de) * 1962-07-31 1965-06-10 Rupert Dersch Unterschenkelprothese

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US197741A (en) * 1877-12-04 Improvement in artificial limbs
DE361972C (de) * 1922-10-20 Wilhelm Mull Kuenstlicher Fuss
US464356A (en) * 1891-04-01 1891-12-01 Artificial limb
US668634A (en) * 1899-11-07 1901-02-26 Alexander Gault Artificial limb.
US981090A (en) * 1910-04-18 1911-01-10 Harry W Karn Artificial foot.
US2025835A (en) * 1934-04-30 1935-12-31 Trautman Ray Artificial leg
US2253040A (en) * 1940-01-05 1941-08-19 Philip A Martino Socket for artificial limbs

Cited By (71)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274166A (en) * 1979-05-03 1981-06-23 Chambers Gary R Socket or cast brim
US4865612A (en) * 1986-07-28 1989-09-12 The Ohio Willow Wood Company, Inc. Prosthetic foot
US5112356A (en) * 1988-03-04 1992-05-12 Chas A. Blatchford & Sons Limited Lower limb prosthesis with means for restricting dorsi-flexion
US5387246A (en) * 1989-04-13 1995-02-07 Phillips; Van L. Prosthetic ski leg
US5314497A (en) * 1991-12-23 1994-05-24 Fay John N Apparatus and method for sealing a liner to a prosthesis
US5728177A (en) * 1994-08-15 1998-03-17 Flex-Foot, Inc. Prosthesis with foam block ankle
US5800569A (en) * 1994-08-15 1998-09-01 Phillips; Van L. Prosthesis with resilient ankle block
US5993488A (en) * 1994-08-15 1999-11-30 Phillips; Van L. Prosthesis with resilient ankle block
US7354456B2 (en) 1994-08-15 2008-04-08 Phillips Van L Foot prosthesis having cushioned ankle
US20050234563A1 (en) * 1994-08-15 2005-10-20 Phillips Van L Foot prosthesis having cushioned ankle
US6899737B1 (en) 1998-04-10 2005-05-31 Van L. Phillips Foot prosthesis having cushioned ankle
US6887279B2 (en) 1998-04-10 2005-05-03 össur hf Active shock module prosthesis
US7279011B2 (en) 1998-04-10 2007-10-09 Phillips Van L Foot prosthesis having cushioned ankle
US20040068325A1 (en) * 1998-04-10 2004-04-08 Phillips Van L. Shock module prosthesis
US20040162623A1 (en) * 1998-04-10 2004-08-19 Phillips Van L. Foot prosthesis having cushioned ankle
US7879110B2 (en) 1998-04-10 2011-02-01 Ossur Hf Foot prosthesis having cushioned ankle
US6478826B1 (en) 1998-04-10 2002-11-12 Van L. Phillips Shock module prosthesis
US6511512B2 (en) 1998-04-10 2003-01-28 Ossur Hf Active shock module prosthesis
US7169190B2 (en) 1998-04-10 2007-01-30 Van L. Phillips Active shock module prosthesis
US20050209707A1 (en) * 1998-04-10 2005-09-22 Phillips Van L Active shock module prosthesis
US6280479B1 (en) 1998-04-10 2001-08-28 Flex-Foot, Inc. Foot prosthesis having cushioned ankle
US20100106260A1 (en) * 1998-04-10 2010-04-29 Phillips Van L Foot prosthesis having cushioned ankle
US6206934B1 (en) 1998-04-10 2001-03-27 Flex-Foot, Inc. Ankle block with spring inserts
US20050038525A1 (en) * 1999-05-24 2005-02-17 The Ohio Willow Wood Company Shock absorbing prosthetic foot for use with prosthetic ankle
US20030093158A1 (en) * 2000-10-26 2003-05-15 Phillips Van L. Foot prosthesis having cushioned ankle
US7063727B2 (en) 2000-10-26 2006-06-20 Van L. Phillips Foot prosthesis having cushioned ankle
US20050038524A1 (en) * 2003-08-15 2005-02-17 Jonsson Orn Ingvi Low profile prosthetic foot
US8007544B2 (en) 2003-08-15 2011-08-30 Ossur Hf Low profile prosthetic foot
US9579220B2 (en) 2003-08-15 2017-02-28 össur hf Low profile prosthetic foot
US8377144B2 (en) 2003-08-15 2013-02-19 Ossur Hf Low profile prosthetic foot
US8858649B2 (en) 2003-08-15 2014-10-14 össur hf Low profile prosthetic foot
US8377146B2 (en) 2003-08-15 2013-02-19 Ossur Hf Low profile prosthetic foot
US20050267602A1 (en) * 2004-05-28 2005-12-01 Clausen Arinbjorn V Foot prosthesis with resilient multi-axial ankle
US7891258B2 (en) 2004-05-28 2011-02-22 össur hf Method of measuring the performance of a prosthetic foot
US20090287315A1 (en) * 2004-05-28 2009-11-19 össur hf. Foot prosthesis with resilient multi-axial ankle
US9668887B2 (en) 2004-05-28 2017-06-06 össur hf Foot prosthesis with resilient multi-axial ankle
US7581454B2 (en) 2004-05-28 2009-09-01 össur hf Method of measuring the performance of a prosthetic foot
US7846213B2 (en) 2004-05-28 2010-12-07 össur hf. Foot prosthesis with resilient multi-axial ankle
US7347877B2 (en) 2004-05-28 2008-03-25 össur hf Foot prosthesis with resilient multi-axial ankle
US20090293641A1 (en) * 2004-05-28 2009-12-03 Clausen Arinbjoern V Method of measuring the performance of a prosthetic foot
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US10758377B2 (en) 2011-09-26 2020-09-01 Össur Iceland Ehf Frictionless vertical suspension mechanism for prosthetic feet
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US11478364B2 (en) 2011-09-26 2022-10-25 Össur Iceland Ehf Frictionless vertical suspension mechanism for prosthetic feet
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US10342680B2 (en) 2012-08-01 2019-07-09 Ossur Iceland Ehf Prosthetic ankle module
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USD797292S1 (en) 2014-06-30 2017-09-12 össur hf Prosthetic foot plate
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US11147692B2 (en) 2014-06-30 2021-10-19 Össur Iceland Ehf Prosthetic feet and foot covers
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US10821007B2 (en) 2016-12-01 2020-11-03 Össur Iceland Ehf Prosthetic feet having heel height adjustability
US11771572B2 (en) 2016-12-01 2023-10-03 Össur Iceland Ehf Prosthetic feet having heel height adjustability
US10980648B1 (en) 2017-09-15 2021-04-20 Össur Iceland Ehf Variable stiffness mechanism and limb support device incorporating the same
US11446164B1 (en) 2017-09-15 2022-09-20 Össur Iceland Ehf Variable stiffness mechanisms
USD915596S1 (en) 2018-04-10 2021-04-06 Össur Iceland Ehf Prosthetic foot with tapered fasteners

Also Published As

Publication number Publication date
SE392810B (sv) 1977-04-25
DE2124564B2 (de) 1981-01-08
DE2124564A1 (de) 1972-12-07
IT955609B (it) 1973-09-29
ATA422372A (de) 1976-09-15
DE2124564C3 (de) 1981-09-17
AT336772B (de) 1977-05-25
FR2138082B1 (de) 1973-07-13
FR2138082A1 (de) 1972-12-29

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