US428839A - Artificial limb - Google Patents
Artificial limb Download PDFInfo
- Publication number
- US428839A US428839A US428839DA US428839A US 428839 A US428839 A US 428839A US 428839D A US428839D A US 428839DA US 428839 A US428839 A US 428839A
- Authority
- US
- United States
- Prior art keywords
- foot
- spring
- felt
- ankle
- artificial limb
- 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
Links
- 210000003414 Extremities Anatomy 0.000 title description 22
- 210000002683 Foot Anatomy 0.000 description 70
- 210000003423 Ankle Anatomy 0.000 description 24
- 210000000474 Heel Anatomy 0.000 description 14
- 210000003371 Toes Anatomy 0.000 description 8
- 238000010276 construction Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 2
- 241001313207 Gonepteryx rhamni Species 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000717 retained Effects 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
Images
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
- A61F2002/5038—Hinged joint, e.g. with transverse axle restricting the movement
-
- 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
-
- 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
Definitions
- My invention relates to an improvem ent in artificial limbs, especially to the construction of the foot and ankle, whereby all ankle machinery and heel and toe cords are dispensed with, and has for its object to provide a means whereby felt may be employed in forming the foot and the toe of said foot may be held at all times in a position to contact naturally with the ground.
- a further object of the invention is to impart such elasticity to the foot that the wearer may walk with comfort and dispatch and without the peculiar constrained appearance noticeable in parties wearing artificial limbs of the ordinary construction.
- Figure 1 is a central vertical section through the foot and ankle.
- Fig. 2 is a bottom plan view of the foot, and
- Fig. 3 is a detail per- ?peotive view of the spring employed in the oot.
- the foot is constructed entirely of felt, what is known as white Mexican felt being preferred, the ankle 11 being made of wood, and preferably hollow.
- the felt of which the foot is composed is cut, carved, or otherwise formed to a suitable shape, and in the said foot a spring 11 a is introduced, one member whereof is buried in the felt, the other member being made to contact with the bottom or ball of the foot.
- the spring 11 is made of wire of suitable size, which is bent upon itself essentially to a U shape, and in each member at or near the center a coil 12 is formed, so that the coiled portion .of the spring will normally stand essentially at a right angle to the forked eX- tremity.
- a longitudinal channel is formed having an outlet in the bottom of the foot at or near the instep, and in the channels the members of the forked end of the spring are introduced, to lie one at each side of the center of the heel, the extremities of said forked members being visible, or nearly so, at the back of the heel, as best shown in Figs. 1 and 2.
- Cavities 13 are formed in the felt at the instep portion of the foot to receive the coils 12 of the spring, as best shown in Fig. 2, the said coils being placed uppermost, whereby considerable tension must be exerted upon the bow portion of the spring to cause it to contact with the ball of the foot or assumea position essentially parallel with the bifurcated section, as illustrated in Figs. 2 and 3.
- I preferably form a channel 14 in the bottom or ball of the foot to receive the bow portion of the spring 11, and the said how portion of the spring is held in place usually by means of a T-plate 15 crossingthe same transversely and longitudinally, which plate is held in position by bolts 16, passed through the plate and upward through the felt, each of which bolts is provided at the upper end with a lock-nut 17, as illustrated in Fig. 1, a recess being formed in the upper portion of the foot to permit the said nuts to be readily entered upon the bolts and countersunk.
- the wooden ankle 11 is attached to the felt foot in the following manner: In the sides of the ankle cavities 18 are formed, as shown in Fig. 1, and similar cavities 19 are produced in the bottom of the heel. A washer 20 is placed in each heel-cavity, and a bolt 21 is passed upward through the washer until the head contacts therewith, through the heel portion of the foot and the lower portion of the ankle into the upper cavities 18, in which cavities a nut 22 is screwed upon each bolt.
- the cavities 18 in the ankle 1 preferably fill with melted brimstone, and all the metal employed in the construction of the limb is In the foot near each side of the heel por:
- the foot may, if desired, be covered with calf-skin or other pliable material, the ankle being preferably covered with rawhide.
- an artificial limb having the foot thereof formed of felt and provided with a bowspring having its forked ends secured in the body of the foot, and its bow end held in con tact with the ball of the foot, substantially as shown and described, whereby the tee is held in a natural position, as set forth.
Description
W (No Mod e1-) A ARTIFICIAL LIMB.
No. 428,839. Patented May 27, 1890.
WITNESSES: INVENTOR:
M BY Mg Arm/runs.
Tu: mums Pz'rzns co., Pnur5-umo., WASNINGTON, o. c,
UNITED STATES PATENT OFFICE.
ALEXANDER GAULT, OF MEDFORD, MINNESOTA.
ARTIFICIAL LIMB.
SPECIFICATION forming part of Letters Patent No. 428,839, dated May 2'7, 1890.
Application filed October 7, 1889.
To all whom it may concern.-
Be it known that I, ALEXANDER GAULT, of Medford, in the county of Steele and State of Minnesota, have invented a new and useful Improvement in Artificial Limbs, of which the following is a full, clear, and exact description.
My invention relates to an improvem ent in artificial limbs, especially to the construction of the foot and ankle, whereby all ankle machinery and heel and toe cords are dispensed with, and has for its object to provide a means whereby felt may be employed in forming the foot and the toe of said foot may be held at all times in a position to contact naturally with the ground.
A further object of the invention is to impart such elasticity to the foot that the wearer may walk with comfort and dispatch and without the peculiar constrained appearance noticeable in parties wearing artificial limbs of the ordinary construction.
The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.
Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar figures of reference indicate corresponding parts in all the views.
Figure 1 is a central vertical section through the foot and ankle. Fig. 2 is a bottom plan view of the foot, and Fig. 3 is a detail per- ?peotive view of the spring employed in the oot.
In carrying out the invention the foot is constructed entirely of felt, what is known as white Mexican felt being preferred, the ankle 11 being made of wood, and preferably hollow. The felt of which the foot is composed is cut, carved, or otherwise formed to a suitable shape, and in the said foot a spring 11 a is introduced, one member whereof is buried in the felt, the other member being made to contact with the bottom or ball of the foot. The spring 11 is made of wire of suitable size, which is bent upon itself essentially to a U shape, and in each member at or near the center a coil 12 is formed, so that the coiled portion .of the spring will normally stand essentially at a right angle to the forked eX- tremity.
Serial No. 326,193. (No model.)
tion a longitudinal channel is formed having an outlet in the bottom of the foot at or near the instep, and in the channels the members of the forked end of the spring are introduced, to lie one at each side of the center of the heel, the extremities of said forked members being visible, or nearly so, at the back of the heel, as best shown in Figs. 1 and 2.
Cavities 13 are formed in the felt at the instep portion of the foot to receive the coils 12 of the spring, as best shown in Fig. 2, the said coils being placed uppermost, whereby considerable tension must be exerted upon the bow portion of the spring to cause it to contact with the ball of the foot or assumea position essentially parallel with the bifurcated section, as illustrated in Figs. 2 and 3.
I preferably form a channel 14 in the bottom or ball of the foot to receive the bow portion of the spring 11, and the said how portion of the spring is held in place usually by means of a T-plate 15 crossingthe same transversely and longitudinally, which plate is held in position by bolts 16, passed through the plate and upward through the felt, each of which bolts is provided at the upper end with a lock-nut 17, as illustrated in Fig. 1, a recess being formed in the upper portion of the foot to permit the said nuts to be readily entered upon the bolts and countersunk. By thus securing the spring 11 to the foot the toe is normally retained in a natural position, as the tendency of the bow portion of the spring is to draw downward, and when the wearer treads upon the ground in walking considerable elasticity must be imparted to his movements.
The wooden ankle 11 is attached to the felt foot in the following manner: In the sides of the ankle cavities 18 are formed, as shown in Fig. 1, and similar cavities 19 are produced in the bottom of the heel. A washer 20 is placed in each heel-cavity, and a bolt 21 is passed upward through the washer until the head contacts therewith, through the heel portion of the foot and the lower portion of the ankle into the upper cavities 18, in which cavities a nut 22 is screwed upon each bolt. The cavities 18 in the ankle 1 preferably fill with melted brimstone, and all the metal employed in the construction of the limb is In the foot near each side of the heel por:
brass. The foot may, if desired, be covered with calf-skin or other pliable material, the ankle being preferably covered with rawhide.
In attaching the ankle to the foot I preferably give to the ankle quite a rearward inclination, as illustrated in Fig. 1, which inclination 1 find in practice adds materially to the comfort of the wearer, and instead of the plate 15, illustrated in connection with the spring, wire may be employed to sew thebow portion of said spring to the foot, though the plate is preferred.
Having, thus described my invention, I claim as new and desire to secure by Letters Patent- 1. As an improved article of manufacture, an artificial limb having the foot thereof formed of felt, substantially as shown and described.
2. In an artificial limb, the combination, with the foot portion thereof constructed of felt, of a spring attached to the foot at the under side thereof, substantially as shown and described, and for the purpose specified.
3. As an improved article of manufacture, an artificial limb having the foot thereof formed of felt and provided with a bowspring having its forked ends secured in the body of the foot, and its bow end held in con tact with the ball of the foot, substantially as shown and described, whereby the tee is held in a natural position, as set forth.
it. In an artificial limb, the combination, with a felt foot, of a bow-spring having coils produced in each member at or near the center, the forked end of the spring being introduced into the body of the heel portion of the foot, and the bowsection carried to a contact with the ball of the foot, a plate contacting with the ball of the foot and the bowseetion of the spring, and means, substantially as shown and described, for securing said plate to the foot, as and for the purpose specified.
5. The combination, with a felt foot having a spring secured therein exerting a downward tension upon the toe, of a wooden ankle provided with cavities near its lower end, bolts passing up through the foot from its bottom into said cavities, and nuts screwed upon said bolts, substantially as and for the purpose specified.
ALEXANDER GAULT.
\Vitnesses:
JoHN BAILEY, ()RRIN LEE.
Publications (1)
Publication Number | Publication Date |
---|---|
US428839A true US428839A (en) | 1890-05-27 |
Family
ID=2497749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US428839D Expired - Lifetime US428839A (en) | Artificial limb |
Country Status (1)
Country | Link |
---|---|
US (1) | US428839A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994010943A1 (en) * | 1992-11-17 | 1994-05-26 | Allen Scott E | Coil spring prosthetic foot |
US5443528A (en) * | 1992-11-17 | 1995-08-22 | Allen; Scott | Coil spring prosthetic foot |
US5653767A (en) * | 1992-11-17 | 1997-08-05 | Medonics, Llc | Prosthetic foot |
US6071313A (en) * | 1991-02-28 | 2000-06-06 | Phillips; Van L. | Split foot prosthesis |
-
0
- US US428839D patent/US428839A/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6071313A (en) * | 1991-02-28 | 2000-06-06 | Phillips; Van L. | Split foot prosthesis |
WO1994010943A1 (en) * | 1992-11-17 | 1994-05-26 | Allen Scott E | Coil spring prosthetic foot |
US5443528A (en) * | 1992-11-17 | 1995-08-22 | Allen; Scott | Coil spring prosthetic foot |
US5571213A (en) * | 1992-11-17 | 1996-11-05 | Allen; Scott | Prosthetic foot |
US5653767A (en) * | 1992-11-17 | 1997-08-05 | Medonics, Llc | Prosthetic foot |
US5695527A (en) * | 1992-11-17 | 1997-12-09 | Medonics L.L.C. | Coil prosthetic foot |
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