US409311A - Artificial leg - Google Patents

Artificial leg Download PDF

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Publication number
US409311A
US409311A US409311DA US409311A US 409311 A US409311 A US 409311A US 409311D A US409311D A US 409311DA US 409311 A US409311 A US 409311A
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leg
shank
piece
secured
socket
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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
    • 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
    • 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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
    • A61F2002/30357—Stepped cylinders, i.e. having discrete diameter changes
    • 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
    • A61F2002/5096—Ball-and-socket joints
    • A61F2002/5098—Ball-and-socket joints with rotation-limiting means
    • 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
    • A61F2002/6621—Toes
    • 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, straps
    • 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
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit

Definitions

  • Phnlvkithugnphen w hinslcn, oc
  • the object of my invention is to provide an artificial leg sufficiently strong and durable, and at the same time possessing the desired flexibility to give it a natural motion when in use.
  • My in vention also consists in improved devices for adjusting the length of the leg to correspond with the growth of the person on whom it is used, or to accommodate it to any other variations which it may be desired to compensate.
  • Figure 1 is a vertical central section through an artificial leg embodying my improvements.
  • Fig. 2 is a transverse section on the line X X of Fig. 1
  • Fig. 3 is a rear view of the leg on a reduced scale.
  • the upper or thigh portion A is preferably made solid, as shown, and provided with a curved socket a, on the front side of which is a downwardly-projecting face-plate or cap a.
  • An inclined portion a is formed 011 the rear side of the upper part A, and is adapted to abut against a correspondingly-inclined portion 1) on the lower leg portion B.
  • the lower leg portion B is also formed with an inclined edge 1), against which the faceplate a abuts when the leg is straight, as shown in Fig. 1.
  • the portion B is formed with a curved socket-piece B, which fits in the recess a.
  • a shank C, secured to the upper portion A, carries on its lower end a ball 0, which fits in a correspondingly-curved recess c in the lower portion B.
  • the socketpiece B is, however, cut away at B to allow the lower portion B of the leg to swing backwardly around the ball-j oint C, the backward movement of the leg being limited by the inclined surfaces a and b.
  • the upper portion A is provided with a metallic strap A by means of which it may be connected to the body of the wearer.
  • the lower portion B of the leg is made hollow and open at the bottom, through which opening extends the ankle portion D, which is provided with a cylindrical shank D, fitting closely in the socket.
  • the shank D is 1101- low and carries a metallic extension-tube E.
  • the shank D and tube E are provided with a series of perforations 6, into which work screws F which extend through the leg from the outside.
  • Metallic bands G are preferably secured around the leg, and the screws F extend through these bands.
  • the ankle portion D is preferably made in two parts by dividing it longitudinally, which are secured together by a screw D
  • the foot H is provided with a toe-piece H, having a curved socket h, in which fits a ball h on the end of a shank 7L2, secured to the foot portion by a pin or screw h portion is recessed at h, to allow it to move relatively to the ball 7r on the shank kg.
  • the heel of the foot is also provided with a shank-piece I, secured in place by a pin or screw 1 and carrying on its upper end aball 1 which fits in a corresponding socket I in the under side of the ankle portion, which is also cut away at 1 to allow the foot to move relatively to the ankle portion.
  • the socket, I in the lower end of the ankle portion is formed to receive the ball I and hold it so that it cannot be removed while the two parts of the ankle portion are secured together.
  • An artificial leg constructed as above doseribed is strong and durable and possesses a sufficient amount of flexibility to make it natural in its movements when in use.
  • the ankle-piece formed with an opening in its lower end, the ankle-piece divided longitudinally and secured together and adjustably secured in the lower leg portion, and the foot-piece having a ball joint resting in a recess or socket in the lower endof the ankle-piece, said footpiece being also provided with a curved recess into which the curved lower end of the ankle-piece extends.

Description

L. SNYDER. TIFIGIAL LEG.
(No Model.)
No. 409.311. Patented Aug. 20, 1889.
Wifmeoae o $5 4/9 2H0; mu
- ETERS. Phnlvkithugnphen w: hinslcn, oc
UNITED STATES PATENT OFFICE.
\VILLIAM L. SNYDER, OF DENVER, COLORADO.
ARTIFICIAL LEG.
SPECIFICATION forming part of Letters Patent No. 409,311, dated August 20, 1889.
l Application filed April 19, 1889. Serial No. 307,777. (No model.)
To aZZ whom, it may concern.-
Be it known that I, W I-LLIAM L. SNYDER, a citizen of the United States, residing at Denver, in the county of Arapahoe and State of Colorado, have invented certain new and useful Improvements in Artificial Legs, of which the following is a specification.
The object of my invention is to provide an artificial leg sufficiently strong and durable, and at the same time possessing the desired flexibility to give it a natural motion when in use.
My in vention also consists in improved devices for adjusting the length of the leg to correspond with the growth of the person on whom it is used, or to accommodate it to any other variations which it may be desired to compensate.
In the accompanying drawings, illustrating my invention, Figure 1 is a vertical central section through an artificial leg embodying my improvements. Fig. 2 is a transverse section on the line X X of Fig. 1, and Fig. 3 is a rear view of the leg on a reduced scale.
The upper or thigh portion A is preferably made solid, as shown, and provided with a curved socket a, on the front side of which is a downwardly-projecting face-plate or cap a. An inclined portion a is formed 011 the rear side of the upper part A, and is adapted to abut against a correspondingly-inclined portion 1) on the lower leg portion B.
The lower leg portion B is also formed with an inclined edge 1), against which the faceplate a abuts when the leg is straight, as shown in Fig. 1. The portion B is formed with a curved socket-piece B, which fits in the recess a. A shank C, secured to the upper portion A, carries on its lower end a ball 0, which fits in a correspondingly-curved recess c in the lower portion B. The socketpiece B is, however, cut away at B to allow the lower portion B of the leg to swing backwardly around the ball-j oint C, the backward movement of the leg being limited by the inclined surfaces a and b.
The upper portion A is provided with a metallic strap A by means of which it may be connected to the body of the wearer. The lower portion B of the leg is made hollow and open at the bottom, through which opening extends the ankle portion D, which is provided with a cylindrical shank D, fitting closely in the socket. The shank D is 1101- low and carries a metallic extension-tube E. The shank D and tube E are provided with a series of perforations 6, into which work screws F which extend through the leg from the outside. Metallic bands G are preferably secured around the leg, and the screws F extend through these bands. By this organization the shank D and tube E may be adjusted vertically in the leg portion B, thus varying the length of the leg. The ankle portion D is preferably made in two parts by dividing it longitudinally, which are secured together by a screw D The foot H is provided with a toe-piece H, having a curved socket h, in which fits a ball h on the end of a shank 7L2, secured to the foot portion by a pin or screw h portion is recessed at h, to allow it to move relatively to the ball 7r on the shank kg.
The heel of the foot is also provided with a shank-piece I, secured in place by a pin or screw 1 and carrying on its upper end aball 1 which fits in a corresponding socket I in the under side of the ankle portion, which is also cut away at 1 to allow the foot to move relatively to the ankle portion.
The socket, I in the lower end of the ankle portion is formed to receive the ball I and hold it so that it cannot be removed while the two parts of the ankle portion are secured together.
An artificial leg constructed as above doseribed is strong and durable and possesses a sufficient amount of flexibility to make it natural in its movements when in use.
I claim as my invention 1. The combination, substantially as hereinbefore set forth, of the upper leg portion formed with a curved recess and face-plate, a shank secured thereto and carrying at its lower end a socket-ball, and the lower leg portion formed with a curved socket-piece at the top and fitting in the curved recess in the upper leg port-ion, and also having a socket for the ball secured to the shank, and a recess in which the shank is free to move.
2. The combination, substantially as hereinbefore set forth, of the lower leg portion The toe,
formed with an opening in its lower end, the ankle-piece divided longitudinally and secured together and adjustably secured in the lower leg portion, and the foot-piece having a ball joint resting in a recess or socket in the lower endof the ankle-piece, said footpiece being also provided with a curved recess into which the curved lower end of the ankle-piece extends.
3. The combination, substantially as hereinbefore set forth, of the lower leg portion, the. ankle-piece having a shank projecting into the lower leg portion, the foot-piece having a curved recess into which the curved or rounded lower end of the ankle portion projects, the shank I, secured to the foot-piece, and the ball 1 secured to the end of the shank and resting in a recess or socket in the anklepiece, which is also provided with a recess I,
20 for the purpose specified.
4. The combination substantially as hereinbefore set forth, of the lower leg portion, the an kle-piece formed with a cylindrical hol low shank extending into the lower leg portion, the metallic cylinder E, arranged centrally within the shank and provided with perforations e, the metallic bands or straps secured around the lower leg portion, and the screws extending through the lower leg portion into the perforations in the shank and in the metallic cylinder carried thereby.
In testimony whereof I have hereunto subscribed my name.
YVILLIAM L. SNYDER.
Witnesses:
HIRAM G. WOLFE, GEORGE STIDGER.
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2445910A (en) * 1946-03-08 1948-07-27 Dumelin Charles Toe coupling for artificial feet
US2643391A (en) * 1948-04-08 1953-06-30 Roderick W Mckendrick Combination knee and ankle joint
US2897512A (en) * 1956-08-30 1959-08-04 Charles E Sackett Artificial limbs
US5116384A (en) * 1990-08-31 1992-05-26 Syncor, Ltd. Prosthetic foot
US5443527A (en) * 1993-03-31 1995-08-22 Wilson Michael T Prosthetic food and three-way ankle joint
US5482513A (en) * 1993-03-31 1996-01-09 Wilson Michael T Ankle joint with dedicated transverse rotator
US5695526A (en) * 1993-10-12 1997-12-09 Wilson Michael T One-piece mechanically differentiated prosthetic foot and associated ankle joint with syme modification
US5888232A (en) * 1994-11-29 1999-03-30 Taylor; Douglas A. Ultralight modular quick-adjusting connector
US5913902A (en) * 1996-09-30 1999-06-22 Geible; Harry F. Artificial foot that enables Limp-free walking
US20070203585A1 (en) * 2006-02-28 2007-08-30 Wilson Michael T Prosthetic foot with composite heel
US20080071387A1 (en) * 2006-09-19 2008-03-20 Sigurdur Olafsson Momentum free bearing for use in prosthetic and orthotic devices
US20090234463A1 (en) * 2008-03-14 2009-09-17 Wilson Michael T Prosthetic foot with flexible ankle portion

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2445910A (en) * 1946-03-08 1948-07-27 Dumelin Charles Toe coupling for artificial feet
US2643391A (en) * 1948-04-08 1953-06-30 Roderick W Mckendrick Combination knee and ankle joint
US2897512A (en) * 1956-08-30 1959-08-04 Charles E Sackett Artificial limbs
US5116384A (en) * 1990-08-31 1992-05-26 Syncor, Ltd. Prosthetic foot
US5443527A (en) * 1993-03-31 1995-08-22 Wilson Michael T Prosthetic food and three-way ankle joint
US5482513A (en) * 1993-03-31 1996-01-09 Wilson Michael T Ankle joint with dedicated transverse rotator
US5695526A (en) * 1993-10-12 1997-12-09 Wilson Michael T One-piece mechanically differentiated prosthetic foot and associated ankle joint with syme modification
US5888232A (en) * 1994-11-29 1999-03-30 Taylor; Douglas A. Ultralight modular quick-adjusting connector
US5913902A (en) * 1996-09-30 1999-06-22 Geible; Harry F. Artificial foot that enables Limp-free walking
US20070203585A1 (en) * 2006-02-28 2007-08-30 Wilson Michael T Prosthetic foot with composite heel
US7871443B2 (en) 2006-02-28 2011-01-18 Wilson Michael T Prosthetic foot with composite heel
US20080071387A1 (en) * 2006-09-19 2008-03-20 Sigurdur Olafsson Momentum free bearing for use in prosthetic and orthotic devices
US8114168B2 (en) 2006-09-19 2012-02-14 Ossur Hf Momentum free bearing for use in prosthetic and orthotic devices
US8603190B2 (en) 2006-09-19 2013-12-10 Ossur Hf Momentum free bearing for use in prosthetic and orthotic devices
US20090234463A1 (en) * 2008-03-14 2009-09-17 Wilson Michael T Prosthetic foot with flexible ankle portion
US8118879B2 (en) 2008-03-14 2012-02-21 Wilson Michael T Prosthetic foot with flexible ankle portion

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