US1201812A - Artificial limb. - Google Patents

Artificial limb. Download PDF

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Publication number
US1201812A
US1201812A US8011316A US8011316A US1201812A US 1201812 A US1201812 A US 1201812A US 8011316 A US8011316 A US 8011316A US 8011316 A US8011316 A US 8011316A US 1201812 A US1201812 A US 1201812A
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United States
Prior art keywords
artificial limb
helix
limb
foot
artificial
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Expired - Lifetime
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US8011316A
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Herman Egli
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Individual
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Priority to US8011316A priority Critical patent/US1201812A/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
    • A61F2/64—Knee joints

Definitions

  • Modern artificial limbs must combine lightness, strength and durability and, for those reasons, were heretofore made of wood, aluminum, rawhide and similar material. In some cases they were shaped out of sheets of comparatively thin material, in other cases, they Were built up of layers of strips of such material, the strips of one layer angularly disposed in relation to the strips of the adjoining layer.
  • the artificial limb illustrated in the accompanying drawing, is formed of one continuous strip of sheet material and obtains its final shape, mating a natural limb, by cutting the strip similar in form to the letters and arranging it into a helix, having suitable means for securing it to the human body and for attaching the necessary joints.
  • FIG. 1 The limb and its details of construction are shown in Figure 1, as a side elevation of a lower leg.
  • Fig. 2 illustrates one form of the S shaped strip of sheet material.
  • Fig. 3 is a diagrammatic view of a device for shaping the strip into a helix.
  • Fig. 4 is a side elevation of the limb with a foot attached.
  • Fig. 5 is a detail of construction of adjoining turns of the helix, and Figs. 6 and "7, are details of construction of the means for securing the foot to the limb.
  • a sheet of fibrous relatively thin material is cut into cyma-form or S shaped elements 1, varying in dimensions and curvatures according'to the size and form of the natural limb to be imitated.
  • This element or templet is first softened and made pliable by, for instance, steaming or heating it and then shaped by rolling it through a device similar to the one shown in Fig. 3, although any other method or apparatus may be employed for this purpose.
  • engaging the templet may be sultably he'ated, if desired, so that the material first softened is hardened and stifi'- ened again, after having been shaped.
  • the templet when leaving the rollers, will at once assume the form of a helix, as shown in F1g. 1, formed by abutting turns 2, 3, 4 and 5, which are secured together by strips of adhesive material 6 and 7, or any other convenient means.
  • the sides of the abutting turns may be flush, edge to edge, or may overlap, as shown.
  • the helix is then coated with one or more layers of varnish, so as to make it moisture-proof and stiff and further provided with a brace 8, having bearings 9, for the kneejoint and a brace 10, preferably/integral with the first, having bearings 11, for the foot joint.
  • the foot may be carried by having the ends of the lower brace 10, pass a bearing plate 13, provided with slots 14 and 15.
  • a bolt located in the bearing groove 16, of the foot 12, secures the foot to the bearings 11.
  • a retractile spring 17, or other well known means, is usually provided for giving the foot the necessary resiliency.
  • the method of producing artificial limbs which consists in, first, providing a continuous cyma-form element of fibrous sheet material, second, shaping the same into helicoidal form, and third, securing together the sides of abutting turns of said helix.
  • An artificial limb comprising a helix formed of a continuous cyma-form element of fibrous sheet material.
  • An artificial limb comprising a helix formed of a continuous element of fibrous sheet material having the sides of abutting turns of said helix overlapping, and means for securing together said abutting turns.

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  • 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)
  • Materials For Medical Uses (AREA)

Description

H. EGLI.
ARTIFICIAL LIMB.
APPLICATION FILED FEB. 24. 1916.
l ,20 1 ,8 1 2 v Patented Oct. 17, 1916.
HERMAN EGLI, OF WEST HOIBOKEIN', NEW JERSEY.
ARTIFICIAL LIMB.
Specification of Letters Patent.
Patented Oct. 17, 1916.
Application filed February 24, 1916. Serial No. SOJISREIS T0 all/whom it may concern.
Be itknown that I, HERMAN EGLI, a citizen of the United States, and resident of West Hoboken, in the county of Hudson and State of New Jersey, have invented an Improved Artificial Limb, of which the following is a specification.
Modern artificial limbs must combine lightness, strength and durability and, for those reasons, were heretofore made of wood, aluminum, rawhide and similar material. In some cases they were shaped out of sheets of comparatively thin material, in other cases, they Were built up of layers of strips of such material, the strips of one layer angularly disposed in relation to the strips of the adjoining layer.
The artificial limb, illustrated in the accompanying drawing, is formed of one continuous strip of sheet material and obtains its final shape, mating a natural limb, by cutting the strip similar in form to the letters and arranging it into a helix, having suitable means for securing it to the human body and for attaching the necessary joints.
The limb and its details of construction are shown in Figure 1, as a side elevation of a lower leg. Fig. 2, illustrates one form of the S shaped strip of sheet material. Fig. 3, is a diagrammatic view of a device for shaping the strip into a helix. Fig. 4, is a side elevation of the limb with a foot attached. Fig. 5, is a detail of construction of adjoining turns of the helix, and Figs. 6 and "7, are details of construction of the means for securing the foot to the limb.
A sheet of fibrous relatively thin material is cut into cyma-form or S shaped elements 1, varying in dimensions and curvatures according'to the size and form of the natural limb to be imitated. This element or templet is first softened and made pliable by, for instance, steaming or heating it and then shaped by rolling it through a device similar to the one shown in Fig. 3, although any other method or apparatus may be employed for this purpose. The rollers 18,
19 and 20, engaging the templet, may be sultably he'ated, if desired, so that the material first softened is hardened and stifi'- ened again, after having been shaped. The templet, when leaving the rollers, will at once assume the form of a helix, as shown in F1g. 1, formed by abutting turns 2, 3, 4 and 5, which are secured together by strips of adhesive material 6 and 7, or any other convenient means. The sides of the abutting turns may be flush, edge to edge, or may overlap, as shown. The helix is then coated with one or more layers of varnish, so as to make it moisture-proof and stiff and further provided with a brace 8, having bearings 9, for the kneejoint and a brace 10, preferably/integral with the first, having bearings 11, for the foot joint.
The foot may be carried by having the ends of the lower brace 10, pass a bearing plate 13, provided with slots 14 and 15. A bolt, located in the bearing groove 16, of the foot 12, secures the foot to the bearings 11. A retractile spring 17, or other well known means, is usually provided for giving the foot the necessary resiliency.
Claims:
1. The method of producing artificial limbs which consists in, first, providing a continuous cyma-form element of fibrous sheet material, second, shaping the same into helicoidal form, and third, securing together the sides of abutting turns of said helix.
2. An artificial limb comprising a helix formed of a continuous cyma-form element of fibrous sheet material.
3. An artificial limb comprising a helix formed of a continuous element of fibrous sheet material having the sides of abutting turns of said helix overlapping, and means for securing together said abutting turns.
New York, in the county and State of New York, this 9th day of December 1915.
HERMAN EGLI.
In presence of- R. JULIAN Snomnzs, EUGENE F. AUBRY.
US8011316A 1916-02-24 1916-02-24 Artificial limb. Expired - Lifetime US1201812A (en)

Priority Applications (1)

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US8011316A US1201812A (en) 1916-02-24 1916-02-24 Artificial limb.

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US8011316A US1201812A (en) 1916-02-24 1916-02-24 Artificial limb.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2520659A (en) * 1946-02-11 1950-08-29 Schmidt Theodore John Artificial limb and method of making the same
US20160347021A1 (en) * 2014-01-29 2016-12-01 Futura S.P.A. Equipment and method for the production of cardboard tubes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2520659A (en) * 1946-02-11 1950-08-29 Schmidt Theodore John Artificial limb and method of making the same
US20160347021A1 (en) * 2014-01-29 2016-12-01 Futura S.P.A. Equipment and method for the production of cardboard tubes
US11312098B2 (en) * 2014-01-29 2022-04-26 Futura S.P.A. Equipment and method for the production of cardboard tubes

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