US1495588A - Artificial foot - Google Patents

Artificial foot Download PDF

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Publication number
US1495588A
US1495588A US442876A US44287621A US1495588A US 1495588 A US1495588 A US 1495588A US 442876 A US442876 A US 442876A US 44287621 A US44287621 A US 44287621A US 1495588 A US1495588 A US 1495588A
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United States
Prior art keywords
foot
fore
heel
leg
artificial
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Expired - Lifetime
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US442876A
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Habermann Alfred
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Individual
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Individual
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Priority to US442876A priority Critical patent/US1495588A/en
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    • 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
    • A61F2/66—Feet; Ankle joints
    • A61F2/6607—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
    • A61F2002/5072—Prostheses not implantable in the body having spring elements
    • A61F2002/5073—Helical springs, e.g. having at least one helical spring

Definitions

  • My invention relates to an improvement in the construction of artificial limbs and refers more particularly to an artificial foot and its connection with the leg.
  • the object of my new construction is to unite sure-footedness and stability with a soft, natural step and a neat appearance of the artificial foot.
  • the lateral movement of the foot permits of its accommodation to the inequalities of the ground without impairing its sure-footedness.
  • an india-rubber cushion E or a spring between leg and forefoot In attain easy transition from the pointed to the heel-position of the foot I prefer to insert an india-rubber cushion E or a spring between leg and forefoot. Or instead thereoi or acting in connection therewith an india-rubber cushion G or another spring may be added above the upper abutment H of the spring F. Through the said india-rubber cushion G and the abutment Serial No. 442,876.
  • An artificial foot comprising a heel portion, a fore-foot portion, and a twoarmed lever interconnecting said portions, said fore-foot portion being supported to rotate laterally on one arm of said lever.
  • An artificial foot comprising a heel portion, a fore-foot portion, a leg portion, means for interconnecting said several portions, said forefoot portion being adapted I to rotate laterally about a part of said" means, and cushioning means interposed between the leg portion and the forefoot portion.
  • An artificial foot comprising a leg portion, a heel portion, a fore-foot portion, a two-armed lever connecting the heel portion to the fore-foot portion, said fore-foot portion being adapted to rotate laterally on one arm of said lever, means connecting said lever to said leg portion, and flexible means interposed between the heel portion and the leg portion.
  • An artificial foot comprising a heel portion, a fore-foot portion, and a lever having one arm pivotally connected to the heel portion and its other arm elongated and extending loosely through the longitudinal axis of said fore-foot portion where by the latter is adapted to rotate laterally about said elongated arm.
  • An artificial foot comprising a. leg portion having a cavity therein, a heel portion in line with said cavity, a fore-foot portion, a lever having one arm pivoted to the heel portion and its other arm extending into and supporting the fore-foot portion, means for connecting the lever to the leg portion, cushioning means interposed between the leg portion and the fore-foot portion, a rod having one end pivoted to the heel and its other-end extending into said cavity, and a spring encircling said rod.

Description

May 271924, 1,4955% A. HABERMANN ARTIFICIAL FOOT Filed Feb. 5. 1921 'h/Lk HTTORNEY.
Patented May 27, 1924.
ALFRED HABERIVIANN, OF MUNICH, GERMANY.
ARTIFICIAL FOOT.
Application filed February 5, 1921.
To all whom it may concern.
Be it known that I, ALFRED HABERMAnN, citizen of Germany, residing at Mumch, Bavaria, Germany, have invented certain new and useful Improvements in Artificial Feet; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
My invention relates to an improvement in the construction of artificial limbs and refers more particularly to an artificial foot and its connection with the leg.
In describing my invention I refer to the drawing herewith in which the sole figure represents a vertical section through the lower portion of a leg with a foot attached thereto, the said foot comprising a separate fore-part A of the foot and a heel B. Both parts are connected with each other by a lever C passed through the ankle-portion at the bottom of the leg and rotatably supported in the same. One end C of the said lever is attached to the spring-actuated heel B while the other end C extends into the fore-part1 of the foot, beneath the instep. This end C has the shape of a spindle or shaft placed in the longitudinal axis of the foot, about which the said fore-part is rotatable in lateral direction. When during walking the heel B is set on the ground, it will by the movement of the spring F move rearwardly somewhat andin this way cause a steady step of the leg D, the forepart of the foot assuming the pointed posi tion, while during stepping the portion A moves on and relatively to the portion D.
The object of my new construction is to unite sure-footedness and stability with a soft, natural step and a neat appearance of the artificial foot. In addition, the lateral movement of the foot permits of its accommodation to the inequalities of the ground without impairing its sure-footedness.
To attain easy transition from the pointed to the heel-position of the foot I prefer to insert an india-rubber cushion E or a spring between leg and forefoot. Or instead thereoi or acting in connection therewith an india-rubber cushion G or another spring may be added above the upper abutment H of the spring F. Through the said india-rubber cushion G and the abutment Serial No. 442,876.
serves to permit adjustment of the parts after the joint has worn.
I claim 1. An artificial foot, comprising a heel portion, a fore-foot portion, and a twoarmed lever interconnecting said portions, said fore-foot portion being supported to rotate laterally on one arm of said lever.
2. An artificial foot, comprising a heel portion, a fore-foot portion, a leg portion, means for interconnecting said several portions, said forefoot portion being adapted I to rotate laterally about a part of said" means, and cushioning means interposed between the leg portion and the forefoot portion.
3. An artificial foot, comprising a leg portion, a heel portion, a fore-foot portion, a two-armed lever connecting the heel portion to the fore-foot portion, said fore-foot portion being adapted to rotate laterally on one arm of said lever, means connecting said lever to said leg portion, and flexible means interposed between the heel portion and the leg portion.
4:. An artificial foot, comprising a heel portion, a fore-foot portion, and a lever having one arm pivotally connected to the heel portion and its other arm elongated and extending loosely through the longitudinal axis of said fore-foot portion where by the latter is adapted to rotate laterally about said elongated arm.
5. An artificial foot, comprising a. leg portion having a cavity therein, a heel portion in line with said cavity, a fore-foot portion, a lever having one arm pivoted to the heel portion and its other arm extending into and supporting the fore-foot portion, means for connecting the lever to the leg portion, cushioning means interposed between the leg portion and the fore-foot portion, a rod having one end pivoted to the heel and its other-end extending into said cavity, and a spring encircling said rod.
In testimony whereof I hereunto affix my signature in the presence of two witnesses.
ALFRED 'HABERMANN.
Witnesses: i
PAUL DnnY of Munich, A. on OLEA.
US442876A 1921-02-05 1921-02-05 Artificial foot Expired - Lifetime US1495588A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US442876A US1495588A (en) 1921-02-05 1921-02-05 Artificial foot

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Application Number Priority Date Filing Date Title
US442876A US1495588A (en) 1921-02-05 1921-02-05 Artificial foot

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US1495588A true US1495588A (en) 1924-05-27

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US442876A Expired - Lifetime US1495588A (en) 1921-02-05 1921-02-05 Artificial foot

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490806A (en) * 1948-06-02 1949-12-13 Ulrich K Henschke Turnable foot for leg prostheses
FR2640499A1 (en) * 1988-12-15 1990-06-22 Palfray Michel Novel prosthetic foot structure
US10500070B1 (en) * 2017-06-07 2019-12-10 University Of South Florida Biomimetic prosthetic device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490806A (en) * 1948-06-02 1949-12-13 Ulrich K Henschke Turnable foot for leg prostheses
FR2640499A1 (en) * 1988-12-15 1990-06-22 Palfray Michel Novel prosthetic foot structure
US10500070B1 (en) * 2017-06-07 2019-12-10 University Of South Florida Biomimetic prosthetic device

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