US302433A - Artificial leg - Google Patents
Artificial leg Download PDFInfo
- Publication number
- US302433A US302433A US302433DA US302433A US 302433 A US302433 A US 302433A US 302433D A US302433D A US 302433DA US 302433 A US302433 A US 302433A
- Authority
- US
- United States
- Prior art keywords
- leg
- artificial
- artificial leg
- notches
- joint
- 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
- 210000002414 Leg Anatomy 0.000 description 34
- 210000002832 Shoulder Anatomy 0.000 description 6
- 210000000629 knee joint Anatomy 0.000 description 6
- 210000003127 Knee Anatomy 0.000 description 4
- NRTLIYOWLVMQBO-UHFFFAOYSA-N 5-chloro-1,3-dimethyl-N-(1,1,3-trimethyl-1,3-dihydro-2-benzofuran-4-yl)pyrazole-4-carboxamide Chemical compound C=12C(C)OC(C)(C)C2=CC=CC=1NC(=O)C=1C(C)=NN(C)C=1Cl NRTLIYOWLVMQBO-UHFFFAOYSA-N 0.000 description 2
- 210000003414 Extremities Anatomy 0.000 description 2
- 241000490025 Schefflera digitata Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000000881 depressing Effects 0.000 description 2
- 230000001747 exhibiting Effects 0.000 description 2
- 235000015250 liver sausages Nutrition 0.000 description 2
- 230000000414 obstructive Effects 0.000 description 2
- 230000000750 progressive Effects 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
- A61F2/64—Knee joints
Definitions
- My invention consists of a combination, with the knee-joint of an artificial leg, of such a mechanical contrivance as will enable the wearer to suddenly check and firmly hold the leg stiff at any intermediate point between that represented by a straight standing leg and such angle of fiexure as is required to give a proper and natural position in sitting, and by a slight action of his shoulder either loosen the joint or suddenly check and hold the same at his convenience or pleasure in the act of walking.
- Theartificial leg to which I propose to a ply my improvement may be constructed of 5c in an enlargement, e, having in its under edge a series of angular notches or catches, f.
- Af-' fixed in like manner in the lower portion, 9, of the leg is another metallic bar, h, provided at its upper with a short lever, 1;, pivoted thereto, one end of which is furnished with an angular hook, j, corresponding in shape and size with the notches f in the bar b above; and the hook j is constantly forced toward the aforesaid notches and-into them, when opportunityis given, by means of a spring, It, so attached to the lower bar,'h, as that its free end shall press againsta small projection, Z, on the under side of the lever, and thus keep it ready for immediate action.
- this hooked lever '11 To the opposite end, m, of this hooked lever '11 is attached a cord or strap, p, that is intended to pass up over the shoulder of the wearer, and by suitable means be comfortably secured to his body in such a manner as that when he occupies a standing or upright position the tension of the cord 19 on the lever will be such as to withdraw and keep the hook j clear of the notches f f in the rigid bar above, and allow the knee-joint to swing free, as in other artificial legs; but should the wearer stumble in his walk, he will naturally stoop to save himself, and by thus depressing his shoulders relieve the tension on the cord p, whereupon the spring will so act upon the lever 2 as to cause its hook to engage one of the nearest notches f, and suddenly check the limber movement of the leg by holding it perfectly rigid and stiff until the wearer has an opportunity to recover himself and regain an upright standing position, upon which the joint will be released, that he may walk as before.
Description
(No Model.)
B. SCOTT. ARTIFICIAL LEG.
No. 302,433. Pate ited July 22, 1884.
WW W
' UNITED STATES PATENT OFFICE EDWARD SCOTT, OF PITTSBURG, PENNSYLVANIA.
ARTIFICIAL LEG.
SPECIFICATION forming part of Letters Patent No. 302,433, dated July 22, 1884.
Application filed March 3, 1884. (No model.)
To all whom it may concern:
Be it known that I, EDWARD Soon, a sub ject of the Queen of Great Britain, and a resident of Pittsburg, Thirty-Second Ward, in the county of Allegheny and State of Pennsylvania, have made a new and useful improvement in that class of artificial legs wherein the knee is articulated or jointed, of which the following is a specification.
Heretofore all such legs have been constructed so that the action of the limb is brought about by simply lifting the leg ,with a sort of loose swinging forward movement sufficiently high to enable the foot to clear obstructions, and, by a progressive pitch of the body, straighten the leg and bring the foot down upon the ground preparatory to the next step; but as the movement of this knee'joint is only prevented from exceeding a certain limit in either direction by means of a positive stop at each end of a full swing at all intermediate points or positions, it remains free to move, and should the wearer stumble, no provision is made whereby he may suddenly stiffen the leg and use it as a brace or support to save himself from falling.
My invention consists of a combination, with the knee-joint of an artificial leg, of such a mechanical contrivance as will enable the wearer to suddenly check and firmly hold the leg stiff at any intermediate point between that represented by a straight standing leg and such angle of fiexure as is required to give a proper and natural position in sitting, and by a slight action of his shoulder either loosen the joint or suddenly check and hold the same at his convenience or pleasure in the act of walking.
To enable others to fully understand my invention, I will proceed to describe it by reference to the accompanying drawings, where- 1n-- Figure 1 represents a vertical section of an artificial leg, exhibiting thereina side elevation of my improvement; Fig. 2, a transverse vertical section "of such leg; Fig. 3 an enlarged detached view of my improved check device; Fig. 4, an edge view of the same.
Theartificial leg to which I propose to a ply my improvement may be constructed of 5c in an enlargement, e, having in its under edge a series of angular notches or catches, f. Af-' fixed in like manner in the lower portion, 9, of the leg is another metallic bar, h, provided at its upper with a short lever, 1;, pivoted thereto, one end of which is furnished with an angular hook, j, corresponding in shape and size with the notches f in the bar b above; and the hook j is constantly forced toward the aforesaid notches and-into them, when opportunityis given, by means of a spring, It, so attached to the lower bar,'h, as that its free end shall press againsta small projection, Z, on the under side of the lever, and thus keep it ready for immediate action. To the opposite end, m, of this hooked lever '11 is attached a cord or strap, p, that is intended to pass up over the shoulder of the wearer, and by suitable means be comfortably secured to his body in such a manner as that when he occupies a standing or upright position the tension of the cord 19 on the lever will be such as to withdraw and keep the hook j clear of the notches f f in the rigid bar above, and allow the knee-joint to swing free, as in other artificial legs; but should the wearer stumble in his walk, he will naturally stoop to save himself, and by thus depressing his shoulders relieve the tension on the cord p, whereupon the spring will so act upon the lever 2 as to cause its hook to engage one of the nearest notches f, and suddenly check the limber movement of the leg by holding it perfectly rigid and stiff until the wearer has an opportunity to recover himself and regain an upright standing position, upon which the joint will be released, that he may walk as before.
Having thus described the nature and construction of my invention, What I claim, and another portion of the leg, substantially in the desire to secure by Letters Patent, is manner shown, for the purposes hereinbefore The knee-joint of an artificial 1eg, in comset forth. bination with a spring lever or catch pro- EDWVARD SCOTT. 5 vided with a cord or strap for operating thev WVitnesses:
same, in conjunction with one or more notches R. R. LOWRY, secured to or arranged above the latch in H. T. MORRIS.
Publications (1)
Publication Number | Publication Date |
---|---|
US302433A true US302433A (en) | 1884-07-22 |
Family
ID=2371605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US302433D Expired - Lifetime US302433A (en) | Artificial leg |
Country Status (1)
Country | Link |
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US (1) | US302433A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2943622A (en) * | 1959-10-05 | 1960-07-05 | Kurt B Nelson | Leg brace orthopedic appliance |
US3043297A (en) * | 1958-03-24 | 1962-07-10 | Thomas F Curnin | Lockable leg brace joint |
US20130190896A1 (en) * | 2010-09-28 | 2013-07-25 | Otto Bock Healthcare Products Gmbh | Joint mechanism |
-
0
- US US302433D patent/US302433A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3043297A (en) * | 1958-03-24 | 1962-07-10 | Thomas F Curnin | Lockable leg brace joint |
US2943622A (en) * | 1959-10-05 | 1960-07-05 | Kurt B Nelson | Leg brace orthopedic appliance |
US20130190896A1 (en) * | 2010-09-28 | 2013-07-25 | Otto Bock Healthcare Products Gmbh | Joint mechanism |
US9060882B2 (en) * | 2010-09-28 | 2015-06-23 | Otto Bock Healthcare Products Gmbh | Joint mechanism |
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