DE804830C - Foot prosthesis with ankle joint and elastic return organ for the foot - Google Patents

Foot prosthesis with ankle joint and elastic return organ for the foot

Info

Publication number
DE804830C
DE804830C DEP7007A DEP0007007A DE804830C DE 804830 C DE804830 C DE 804830C DE P7007 A DEP7007 A DE P7007A DE P0007007 A DEP0007007 A DE P0007007A DE 804830 C DE804830 C DE 804830C
Authority
DE
Germany
Prior art keywords
foot
ankle joint
elastic return
prosthesis
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
Application number
DEP7007A
Other languages
German (de)
Inventor
Max Empfenzeder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAX EMPFENZEDER
Original Assignee
MAX EMPFENZEDER
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MAX EMPFENZEDER filed Critical MAX EMPFENZEDER
Priority to DEP7007A priority Critical patent/DE804830C/en
Application granted granted Critical
Publication of DE804830C publication Critical patent/DE804830C/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/50Prostheses not implantable in the body
    • A61F2/60Artificial legs or feet or parts thereof
    • A61F2/66Feet; Ankle joints
    • A61F2/6607Ankle joints
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/50Prostheses not implantable in the body
    • A61F2002/5072Prostheses not implantable in the body having spring elements
    • A61F2002/5073Helical springs, e.g. having at least one helical spring
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/50Prostheses not implantable in the body
    • A61F2/60Artificial legs or feet or parts thereof
    • A61F2/66Feet; Ankle joints
    • A61F2002/6614Feet

Landscapes

  • 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)
  • Prostheses (AREA)

Description

Die Erfindung betrifft eine Fußprothese mit Knöchelgelenk und elastischem Rückführorgan für den Fuß. Bei den bekannten Ausführungsformen besitzt das Knöchelgelenk nur eine quer liegende Achse. Fuß und Unterschenkel können daher lediglich in der Hauptrichtung, also nach vorn zu, gewinkelt werden, nicht dagegen in seitlicher Richtung. Aus diesem Grunde paßt sich der Fuß hier nur in der Gehrichtung dem Boden an, während er bei seitlich schiefer Auftrittsstelle, auch wenn deren Neigung verhältnismäßig gering ist, ausschließlich mit dem Sohlenrand auf dem Boden zu sitzen kommt, was zur Folge hat, daß der Prothesenträger auf solchem Boden mehr oder weniger unsicher geht und namentlich im Winter leicht Gefahr läuft, zu rutschen. The invention relates to a foot prosthesis with an ankle joint and elastic Return organ for the foot. In the known embodiments, the ankle joint has only one transverse axis. The foot and lower leg can therefore only be in the Main direction, i.e. towards the front, should be angled, but not laterally Direction. For this reason, the foot only fits the ground in the walking direction on, while it occurs when the incline is inclined to the side, even if its inclination is proportionate is low, only to sit with the sole edge on the floor, what has the consequence that the prosthesis wearer is more or less unsafe on such a ground and especially in winter runs the risk of slipping.

Die Erfindung stellt sich nun die Aufgabe, das Knöchelgelenk so auszubilden, daß sich der Fuß wie der natürliche den Neigungen des Bodens nach allen Richtungen hin vollständig anzugleichen vermag. Zu diesem Zwecke wird eine Fußprothese vorgeschlagen, deren wesentliches Kennzeichen darin liegt, daß das Knöchelgelenk aus einem Kreuz- oder Kugelgelenk besteht und daß das elastische Rückführorgan, am besten eine stehend angeordnete, das Gelenk umgebende Schraubenfeder, allseitig wirksam ist. The invention now has the task of designing the ankle joint in such a way that that the foot, like the natural one, follows the slopes of the ground in all directions able to fully align. For this purpose, a prosthetic foot is proposed, whose main characteristic is that the ankle joint consists of a cross or ball joint and that the elastic return organ, preferably a standing one arranged, the joint surrounding helical spring, is effective on all sides.

In der Zeichnung ist ein Ausführungsbeispiel veranschaulicht, und zwar zeigt Fig. 1 die Seitenansicht des Fußes mit der unteren Unterschenkelhülse, teilweise im Schnitt, und Fig. 2 die Ansicht des Schnittes nach Linie A-B der Fig. I. In the drawing, an embodiment is illustrated, and Although Fig. 1 shows the side view of the foot with the lower leg sleeve, partially in section, and FIG. 2 shows the view of the section along line A-B of FIG. I.

Die allseitige Gelenkigkeit wird im dargestellten Falle durch das Kreuzgelenk a erreicht. Es verbindet die beiden senkrechten Bolzen b und c miteinander, von denen der eine, b, an dem tellerförmigen Einsatzstück d der Unterschenkelhülse e, der andere, c, an der zugleich zum Aufbau des Tellers f dienenden platten oberen Partie des Fußes g mittels der Schraubenmuttern h befestigt ist. Die Bolzenbunde i wirken dabei als Widerlager. The flexibility on all sides is achieved in the illustrated case by the Universal joint a reached. It connects the two vertical bolts b and c to each other, of which one, b, on the plate-shaped insert piece d of the lower leg sleeve e, the other, c, on the upper plate, which is also used to build up the plate f Part of the foot g is fastened by means of the screw nuts h. The bolt collars i act as an abutment.

Zur Sicherung gegen Verdrehen sind die Bolzen b und c an den in die Durchführungsöffnungen zu liegen kommenden Stellen und ebenso die Durchführungsöffnungen selbst unrund, z. B. vierkantig, ausgebildet. Allenfalls vorragende Teile dieser unrunden Bolzenpartien werden durch die Unterlegscheiben k verdeckt. Der Unterschenkelteller d ist unterhalb und oberhalb durch die Sperrstücke l und m gegen Verschieben gesichert. Letztere sind lösbar, so daß nach ihrer Entfernung der Teller d nach oben herausgenommen werden kann. Der fußseitige Teller f kann dagegen unlösbar befestigt, z. B. angenietet sein.To prevent rotation, bolts b and c are attached to the Lead-through openings to be located places and also the lead-through openings even out of round, z. B. square, formed. At most protruding parts of this Out-of-round bolt sections are covered by the washers k. The lower leg plate d is secured against shifting below and above by the locking pieces l and m. The latter are detachable, so that after they have been removed, the plate d is taken out upwards can be. The foot-side plate f, on the other hand, can be permanently attached, e.g. B. riveted be.

Die beiden Teller d und f, deren Hohlseiten zueinander gekehrt sind, dienen zur Aufnahme der Enden der senkrecht angeordneten Schraubenfeder n. Die Windungen dieser Feder umgeben mit reichlichem Abstand das Kreuzgelenk a, so daß sie dessen Winkelung nicht behindern. The two plates d and f, the hollow sides of which are facing each other, serve to accommodate the ends of the vertically arranged helical spring n. The turns this spring surround the universal joint a at a good distance, so that it is Do not hinder angulation.

Das Kreuzgelenk a verleiht dem Fuß die Fähigkeit, sich lagenmäßig der jeweiligen Auftrittsstelle anzupassen. Zugleich überträgt es auf ihn die Last. The universal joint a gives the foot the ability to position itself to adapt to the respective place of performance. At the same time it transfers the burden on him.

Die Feder n, die zweckmäßig mit etwas Vorspannung zwischen den Tellern sitzt, hat lediglich die Aufgabe, den Fuß nach seiner Entlastung in die Normalstellung zurückzuführen. Sie wirkt dabei ebenfalls allseitig.The spring n, which is useful with a little bias between the plates sits, has only the task of the foot in the normal position after its relief traced back. It also works on all sides.

An Stelle des Kreuzgelenkes kann gegebenenfalls auch ein Kugelgelenk treten; doch hat ersteres den Vorteil, daß es den Fuß zugleich gegen seitliches Verdrehen sichert. Auch die Schraubenfeder n läßt sich unter Umständen durch ein genügend elastisches Gummipolster ersetzen, das z. B. als dickwandiges Schlauchstück ausgeführt sein kann. Vorzuziehen ist indes eine Feder, da sie weniger rasch ermüdet. Instead of the universal joint, a ball joint can optionally also be used step; but the former has the advantage that it moves the foot against the side at the same time Twisting secures. The helical spring n can also be inserted under certain circumstances Replace enough elastic rubber pad that z. B. as a thick-walled piece of tubing can be executed. However, a spring is preferable because it does not tire as quickly.

PATENTANSPROCHE: I. Fußprothese mit Knöchelgelenk und elastischem Rückführorgan für den Fuß, dadurch gekennzeichnet, daß das Knöchelgelenk aus einem Kreuz- oder Kugelgelenk (a) besteht und daß das elastische Rückführorgan, am besten eine stehend angeordnete, das Gelenk (a) umgebende Schraubenfeder (n), allseitig wirksam ist. PATENT APPLICATION: I. Ankle prosthesis with elastic and ankle joint Return organ for the foot, characterized in that the ankle joint consists of a Universal or ball joint (a) and that the elastic return member, best a vertically arranged helical spring (s) surrounding the joint (a) on all sides is effective.

Claims (1)

2. Fußprothese nach Anspruch I, dadurch gekennzeichnet, daß das Kreuz- oder Kugelgelenk (a) zwei Bolzen (b, c) miteinander .verbindet, die verdrehungssicher am Fuß (g) bzw. an der Unterschenkelhülse (e) befestigt sind. 2. foot prosthesis according to claim I, characterized in that the cross or ball-and-socket joint (a) connects two bolts (b, c) with one another, which are torsion-proof are attached to the foot (g) or the lower leg sleeve (e). 3. Fußprothese nach den Ansprüchen I und 2, dadurch gekennzeichnet, daß die Enden der Schraubenfeder (n) in paßrechten Tellern (d, f) sitzen. 3. foot prosthesis according to claims I and 2, characterized in that that the ends of the coil spring (n) sit in matching plates (d, f).
DEP7007A 1948-10-02 1948-10-02 Foot prosthesis with ankle joint and elastic return organ for the foot Expired DE804830C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP7007A DE804830C (en) 1948-10-02 1948-10-02 Foot prosthesis with ankle joint and elastic return organ for the foot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP7007A DE804830C (en) 1948-10-02 1948-10-02 Foot prosthesis with ankle joint and elastic return organ for the foot

Publications (1)

Publication Number Publication Date
DE804830C true DE804830C (en) 1951-04-30

Family

ID=7360966

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP7007A Expired DE804830C (en) 1948-10-02 1948-10-02 Foot prosthesis with ankle joint and elastic return organ for the foot

Country Status (1)

Country Link
DE (1) DE804830C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2699554A (en) * 1953-07-07 1955-01-18 Comelli Peter Artificial limb
WO2005112838A2 (en) * 2004-05-19 2005-12-01 Otto Bock Healthcare Lp Multi-axial fitting with shock absorption for prosthetic foot
WO2006015787A2 (en) * 2004-08-04 2006-02-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Prosthesis, in particular prosthetic foot
US20160242937A1 (en) * 2007-03-13 2016-08-25 Ronald Harry Nelson Carbon fiber prosthetic foot with hollow cross sections

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2699554A (en) * 1953-07-07 1955-01-18 Comelli Peter Artificial limb
WO2005112838A2 (en) * 2004-05-19 2005-12-01 Otto Bock Healthcare Lp Multi-axial fitting with shock absorption for prosthetic foot
WO2005112838A3 (en) * 2004-05-19 2006-06-01 Bock Healthcare Lp Multi-axial fitting with shock absorption for prosthetic foot
WO2006015787A2 (en) * 2004-08-04 2006-02-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Prosthesis, in particular prosthetic foot
DE102004037877A1 (en) * 2004-08-04 2006-02-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Prosthetic device, in particular foot prosthesis
WO2006015787A3 (en) * 2004-08-04 2006-05-26 Fraunhofer Ges Forschung Prosthesis, in particular prosthetic foot
DE102004037877B4 (en) * 2004-08-04 2010-04-29 Bauerfeind Ag Foot prosthesis
US7862621B2 (en) 2004-08-04 2011-01-04 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Prosthesis, in particular prosthetic foot
US20160242937A1 (en) * 2007-03-13 2016-08-25 Ronald Harry Nelson Carbon fiber prosthetic foot with hollow cross sections

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