US3800333A - Artificial leg - Google Patents

Artificial leg Download PDF

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Publication number
US3800333A
US3800333A US00208325A US3800333DA US3800333A US 3800333 A US3800333 A US 3800333A US 00208325 A US00208325 A US 00208325A US 3800333D A US3800333D A US 3800333DA US 3800333 A US3800333 A US 3800333A
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US
United States
Prior art keywords
section
ankle
calf
shank
foot
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
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US00208325A
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English (en)
Inventor
K Friberg
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FRIBERG K AB
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FRIBERG K AB
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Filing date
Publication date
Application filed by FRIBERG K AB filed Critical FRIBERG K AB
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Publication of US3800333A publication Critical patent/US3800333A/en
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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
    • A61F2/604—Joints for artificial legs

Definitions

  • the shank section is formed with an [52] US. Cl 3/21, 3/1.2, 3/23, an l to which is j rn lled a foo ction.
  • a mecha- 3/27 nism is provided to bring about controls over the [51] Int. Cl.
  • A6lf 1/08 h nk i n m ions, s i mechanism being housed [58] Field of Search 3/22 29, 1.2, 'in a shell-shaped calf section constituting the upper 1 3/2] part of the shank.
  • the ankle has a cylindrical top portion received in a sleeve in the lower portion of the [56] References Cited calf section for securing and adjusting said ankle rela- UNTED STATES PATENTS tively the calf section.
  • Rcgnell 3 1.2 also arranged a base fies'gned and Semng to ceive and secure a fork-llke attachment means in 2,692,392 10/1954 Bennington et al 3/21 UX which the lower end of said mechanism is oumalled.
  • the present invention relates to artificial legs and particularly to above-knee prostheses comprising an upper leg component or thigh section which by means of a knee joint shaft is pivotally connected to a lower leg component or shank section having an ankle portion to which an artificial foot is preferably pivotally connected, and also comprising a mechanism or unit controlling the shank section motions, i.e., knee flexion or knee extension, during the swing phase and/or stance phase.
  • the shank section comprises a calfsection shaped-as a shell and in the interior of which said mechanism or unit controlling the knee joint functions as defined above is enclosed.
  • the kinesiotherapy starts as soon as possible after the amputation as an early start has a decisive influence on the obtainment of optimum recovery of the convalescent as well as of optimum conditioning of his leg stump.
  • a temporary prosthesis is immediately available. This temporary prosthesis must be multifunctional, i.e., it must be capable of performing all the functions required to enable the patient at the earliest possible stage of his walking training to achieve good posture and the best possible gait and ambulatory capability.
  • a leg prosthesis which does not meet these requirements constitutes and impediment to the patient and in the long run may even be harmful to him.
  • a faulty prosthesis deprives the rehabilitation team (including doctors and prosthetists) of the advantages of acquiring an extensive basis for their evaluation and prescription of the permanent prosthesis.
  • the prescription of a leg prosthesis is difficult enough even without such lack of an adequate evaluation basis.
  • makeshift prosthetic parts has hitherto been allowed too extensively to attain the per se desirable rapid start of the kinesiotherapy for recent amputees. Almost without exceptions the consequence has been an artificial gait which far from resembles the best possible gait that the patient may achieve.
  • a multitude of types and brands of components are available on the market which are constructed for and in shape and design limited to one particular device or mechanism for controlling the knee joint during the swing or stance phases. These components are completely adjusted to the functions of the mechanism in question.
  • the present invention eliminates the abovementioned drawbacks and makes it possible to convert in a simple way a temporary prosthesis into a permanent one.
  • the invention is characterised in that the ankle at least at its upper end is in the shape of a cylindrical tube and that the lower end of the shell-shaped calf section is provided with a clamping means adapted to enable vertical adjustment of the ankle relatively to the shell-shaped calf section and to secure said ankle to said calf section, and in that the lower end of the shellshaped calf section is provided with a base portion serving to secure an attachment means to which the lower end of the knee function controlling mechanism is preferably hingedly connected.
  • the length of the prosthesis may be altered in a simple an quick way, which is important for children and teen-agers during their growth period;
  • knee joint mechanisms of various types for swing and for stance control may be mounted in the shank section, and
  • the leg may be given a shape corresponding to the shape of the sound leg.
  • FIG. 1 is a vertical longitudinal section through an artificial leg in accordance with the invention
  • FIG. 2 is a similar longitudinal section as seen when the leg is turned over relatively FIG. 1,
  • FIG. 3 illustrates on an enlarged scale a horizontal longitudinal section along linge IIIIII in FIG. 2,
  • FIG. 4 is a side view showing partly in longitudinal section an upright incorporated in the ankle part
  • FIG. 5 is a plan view of the upright in FIG. 4,
  • FIG. 6 is a side view of a fork member incorporated in the shank section
  • FIG. 7 is an end view of the fork member of FIG. 6.
  • the upper leg or thigh socket l is as shown in FIG. 1 connected to the lower leg component or shank section 3 by means of a shaft 2 forming the articulated knee joint.
  • the shank section 3 comprises a shellshaped calf section 3' at the lower portion of which an ankle 4 is attached so as to be articulated to an artificial foot 5.
  • the hydraulic mechanism 8 comprises two cylinders 9, 10 which contain liquid and are positioned co-axially in the longitudinal direction relatively each other and have one displaceable piston (not shown) each. These pistons are rigidly attached on a common piston rod 11.
  • Reference number 12 designates the attachment loop of the lower cylinder 10.
  • the piston rod 11 extends through a bushing in a valve housing 13 positioned between the cylinders 9, 10.
  • valve housing In the valve housing is inserted a valve (not shown) provided with a valve arm 14 by means of which a channel communicating the interiors of the two cylinders 9, 10 may be closed off to block the knee joint in a particular position.
  • the valve is turned to closing position by means of a traction spring 15.
  • the mechanism 8 controlling the knee joint functions i.e., the swing and stance phases, is hingedly connected at its lower end by means of a bolt 16 to a forklike member 17 which by means of a bayonet catch 18 is detachably secured in a base portion 19 at the lower end of the calf section 3'.
  • the base portion 19 preferably may be made integral with the rest of the calf section 3'.
  • In the fork member 17 is journalled by means ofa pin 20 (or bolt) one end of a lever 21, the opposite end 22 of which is connected by means of a thread-like link 23 to the lower portion 24 of the valve arm 14.
  • a coupling wire 26 is attached at its upper end 25 to the lever 21, said coupling wire passing freely through a vertical channel 27 fonned in the fork member 17.
  • the lower end of the coupling wire 26 is by means of a chuck 28 attached to a regulating member 29 which is operated by the vertical movements of the artificial foot and is vertically displaceable in the ankle portion 4.
  • the ankle portion 4 comprises an ankle plate 31 which by means of a horizontal shaft 30 is articulated to the artificial foot 5, a tube-like upright 33 having a flange 32 thereon being attached to said plate 31.
  • the upper end 34 of the upright 33 is insertable in a clamping sleeve 35, said sleeve extending downwardly from the base portion 19.
  • the clamping sleeve 35 is provided with a vertically extending slit 36 and clamping sleeve portions 37 and 38 on either side of said slit 36 may be tightened about ankle means 89 the upper end 34 of the upright by means of a clamping screw 39.
  • the calf section 3' together with its associated control mechanism 8 and the parts pertaining thereto may be stored in for instance a clinic in a mounted condition ready for application in the socket l fitting the femoral stump 40 of an amputee.
  • the same calf section 3' may be used for practically all aboveknee amputees.
  • the artificial foot 5 in a few various sizes thereof may be stored in a mounted condition, ready for use, the ankle portion 4 including the ankle plate 31 being, if desired, also mounted on the artificial foot. After measuring the length of the sound leg of the amputee the length of' the artificial leg is established and the upright 33 on the ankle 4 is shortened to the correct length.
  • the coupling wire 26 is attached by means of its lower end to the chuck 28 and the upper upright end 34 is by means of the clamping screw 39 secured after setting of the correct foot angle by turning the upright 33 in the clamping sleeve 35.
  • the artificial leg is thereafter ready for application,-fllowed by adjustment, if needed, and is then fit for use.
  • the artificial leg may easily be surrounded by sections made of plastics or enclosed in plastics to impart to the prosthesis a configuration which as closely as possible simulates the configuration of the sound leg.
  • the invention is not either limited to the construction 5 of the artificial foot 5 illustrated in the drawings.
  • the fork member 17 may be attached to the base portion 19 in some other way than by means of a bayonet catch, for instance by means of a threaded pin.
  • ankle section a horizontal shaft, a lower foot plate ar-.
  • said shank section comprising a calf section enclosing said knee joint function controlling mechanism, a cylindrical tube portion affixed to and extending upwardly from said upper ankle plate within the lower end of said calf section, clamping means at the lower end of said calf section for enabling adjustment of said cylindrical tube portion and said ankle section relative to said calf section and for securing said ankle section to said calf section, a base portion at the lower end of said calf section above said cylindrical tube portion, an opening formed in said base portion, said horizontal shaft being located ahead of the prosthesis weight supporting line passing through said thigh section, said knee joint shaft and said ankle section, a vertical bore in said upper ankle plate, a clamping element displaceable in said bore, an
  • clamping means comprises a clamping sleeve integral with the calf section, said ankle section being rotatably mounted in said clamping sleeve for setting the desired foot angle.

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)
US00208325A 1971-01-07 1971-12-15 Artificial leg Expired - Lifetime US3800333A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE00094/71A SE348934B (fr) 1971-01-07 1971-01-07

Publications (1)

Publication Number Publication Date
US3800333A true US3800333A (en) 1974-04-02

Family

ID=20256028

Family Applications (1)

Application Number Title Priority Date Filing Date
US00208325A Expired - Lifetime US3800333A (en) 1971-01-07 1971-12-15 Artificial leg

Country Status (13)

Country Link
US (1) US3800333A (fr)
JP (1) JPS5646852B1 (fr)
AT (1) AT336771B (fr)
AU (1) AU461646B2 (fr)
CA (1) CA968902A (fr)
DE (1) DE2200561A1 (fr)
DK (1) DK129383B (fr)
ES (1) ES398654A1 (fr)
FR (1) FR2119441A5 (fr)
GB (1) GB1380428A (fr)
IL (1) IL38365A (fr)
IT (1) IT943394B (fr)
SE (1) SE348934B (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4065815A (en) * 1976-09-28 1978-01-03 Sen Jung Chen Hydraulically controlled artificial leg
US5593455A (en) * 1994-05-27 1997-01-14 Phillips; Van L. Plug mounted prosthesis
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
US20050071017A1 (en) * 2003-09-30 2005-03-31 Lecomte Christophe Guy Low profile active shock module prosthesis
US20050203638A1 (en) * 2004-03-01 2005-09-15 Slemker Tracy C. Modular stance flexion component for a prosthetic limb
US20090299491A1 (en) * 2004-03-01 2009-12-03 Slemker Tracy C Modular shock absorbers for prosthetic limbs

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3950808A (en) * 1974-05-03 1976-04-20 Sorenson Hugh Buoyancy circular water ski
TW238244B (fr) * 1992-03-24 1995-01-11 Lehn Phillips Van
US6106560A (en) * 1999-03-30 2000-08-22 Michael O'Byrne Hydraulic knee joint
CN114206272A (zh) 2019-07-30 2022-03-18 科里居帕克工业有限公司 在过度伸展处具有阻力变化机构的液压假肢膝关节

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671224A (en) * 1951-07-02 1954-03-09 Carl E Regnell Artificial leg
US2692392A (en) * 1951-04-05 1954-10-19 Modern Limb Supply Co Inc Artificial limb
SU120893A1 (ru) * 1958-12-26 1959-11-30 Г.А. Дегтярев Учебно-лечебный протез бедра

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692392A (en) * 1951-04-05 1954-10-19 Modern Limb Supply Co Inc Artificial limb
US2671224A (en) * 1951-07-02 1954-03-09 Carl E Regnell Artificial leg
SU120893A1 (ru) * 1958-12-26 1959-11-30 Г.А. Дегтярев Учебно-лечебный протез бедра

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4065815A (en) * 1976-09-28 1978-01-03 Sen Jung Chen Hydraulically controlled artificial leg
US5593455A (en) * 1994-05-27 1997-01-14 Phillips; Van L. Plug mounted prosthesis
US5888238A (en) * 1994-05-27 1999-03-30 Phillips; Van L. Plug mounted prosthesis
US20050209707A1 (en) * 1998-04-10 2005-09-22 Phillips Van L Active shock module prosthesis
US6511512B2 (en) 1998-04-10 2003-01-28 Ossur Hf Active shock module prosthesis
US20040068325A1 (en) * 1998-04-10 2004-04-08 Phillips Van L. Shock module prosthesis
US6887279B2 (en) 1998-04-10 2005-05-03 össur hf Active shock module prosthesis
US6478826B1 (en) 1998-04-10 2002-11-12 Van L. Phillips Shock module prosthesis
US7169190B2 (en) 1998-04-10 2007-01-30 Van L. Phillips Active shock module prosthesis
US20050071017A1 (en) * 2003-09-30 2005-03-31 Lecomte Christophe Guy Low profile active shock module prosthesis
US6969408B2 (en) 2003-09-30 2005-11-29 Ossur Engineering, Inc. Low profile active shock module prosthesis
US20060004467A1 (en) * 2003-09-30 2006-01-05 Lecomte Christophe G Low profile active shock module prosthesis
US7371262B2 (en) 2003-09-30 2008-05-13 össur hf Low profile active shock module prosthesis
US20050203638A1 (en) * 2004-03-01 2005-09-15 Slemker Tracy C. Modular stance flexion component for a prosthetic limb
US20090299491A1 (en) * 2004-03-01 2009-12-03 Slemker Tracy C Modular shock absorbers for prosthetic limbs

Also Published As

Publication number Publication date
AU461646B2 (en) 1975-06-05
DK129383B (da) 1974-10-07
SE348934B (fr) 1972-09-18
IL38365A (en) 1975-02-10
FR2119441A5 (fr) 1972-08-04
IT943394B (it) 1973-04-02
AU3716571A (en) 1973-06-28
JPS5646852B1 (fr) 1981-11-06
CA968902A (en) 1975-06-10
DE2200561A1 (de) 1972-07-20
DK129383C (fr) 1975-02-24
GB1380428A (en) 1975-01-15
IL38365A0 (en) 1972-02-29
ES398654A1 (es) 1976-03-01
AT336771B (de) 1977-05-25
ATA14172A (de) 1976-09-15

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