DE830991C - Thigh prosthesis with mechanically coupled knee and foot sections - Google Patents

Thigh prosthesis with mechanically coupled knee and foot sections

Info

Publication number
DE830991C
DE830991C DEW1280A DEW0001280A DE830991C DE 830991 C DE830991 C DE 830991C DE W1280 A DEW1280 A DE W1280A DE W0001280 A DEW0001280 A DE W0001280A DE 830991 C DE830991 C DE 830991C
Authority
DE
Germany
Prior art keywords
knee
joint
mechanically coupled
thigh prosthesis
foot sections
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
DEW1280A
Other languages
German (de)
Inventor
Heinrich Wieners
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEW1280A priority Critical patent/DE830991C/en
Application granted granted Critical
Publication of DE830991C publication Critical patent/DE830991C/en
Expired legal-status Critical Current

Links

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
    • A61F2/604—Joints for artificial legs

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 Prothese ist eine Weiterentwicklung und Vervollkommnung des bekannten Einachserstandardmodells. Die seit vielen Jahren bewährte und als Norm eingeführte I6 mm starke durchgehende Knieachse ist beibehalten worden. Fuß- und Kniegelenke haben als grundlegende Neuerung je ein zweites, sogenanntes Hilfsgelenk erhalten, deren Achsen hinter den Hauptachsen angeordnet und durch eine in der Länge verstellbare Verbindungsstange miteinander verbunden sind. Durch diese Anordnung wird die Einknickgefahr zu Beginn der Standbeinphase (Schrittvorlage) beseitigt, weil die Verbindungsstange zwischen den Hilfsgelenken in dieser Schrittphase auf das Kniegelenk streckend wirkt. Zur Erzielung eines elastischen Auftritts ist ein bexvegliches Zwischenstück im Knöchelteil als Verbindungsstück zwischen Haupt- und Hilfsgelenk angeordnet, gegen welches die Ferse durch Gummipuffer abgefedert ist. Die obere Basis des Zwischenstückes trägt einen Gummikeil als Gelenkanschlag für den Fuß. Dieser Gelenkanschlag bildet über die Verbindungsstange zugleich auch den Gelenkanschlag für das Knie, so daß ein separater Knieanschlag in Fortfall kommt. The prosthesis is a further development and improvement of the familiar Single-axle standard model. The tried and tested for many years and introduced as a standard A 16 mm thick knee axis has been retained. Ankle and knee joints have received a second, so-called auxiliary joint as a fundamental innovation, whose axes are arranged behind the main axes and adjustable in length by one Connecting rod are connected to each other. This arrangement eliminates the risk of buckling at the beginning of the stance phase (step template) eliminated because the connecting rod between the auxiliary joints has a stretching effect on the knee joint in this step phase. To achieve an elastic appearance, a flexible adapter is included in the Ankle part arranged as a connecting piece between the main and auxiliary joint, against which the heel is cushioned by rubber buffers. The upper base of the intermediate piece carries a rubber wedge as a joint stop for the foot. This joint stop forms via the connecting rod at the same time also the joint stop for the knee, so that a separate knee stop is omitted.

Die Vorteile der Prothese nachlder Erfindung sind die absolute Kniesicherheit in jeder Schrittphase, insbesondere bei Belastung der Ferse, sowie die Verkürzung Ides Unterschenkels während der Schwungbeinphase, infolge automatischer Fußspitzenanhebung um etwa 3 cm. Ferner wird durch die Hebelwirkung cles Vorfußes hei Reendigung der Standheinphase (Sclarittruclilage) das Knie durch die darauf ruhende Körperlast automatisch in Beuge gebracht, was einer Erleichterung der Sitzdruckmethode zur Einleitung der Schwungphase gleichkommt. The advantages of the prosthesis according to the invention are absolute knee safety in every step phase, especially when the heel is loaded, as well as the shortening Ides lower leg during the swing leg phase, as a result of automatic toe lifting by about 3 cm. Furthermore, the lever action of the forefoot causes the end of the foot Stance phase (Sclarittruclilage) the knee due to the weight of the body resting on it automatically bent, which makes the sitting pressure method easier Initiation of the swing phase equals.

In der Zeichnung ist ein Ausführungsbeispiel dargestellt, und zwar sind mit a und b Hilfsgelenke bezeichnet, welche durch die in der Länge verstellbare Verbindungsstange c miteinander verbunden sind, d ist ein bewegliches Zwischenstück und e der darüber gelagerte, als Gelenkanschlag dienende Gummikeil. Mit f und g sind die Hauptgelenkachsen bezeichnet. In the drawing, an embodiment is shown, namely are designated with a and b auxiliary joints, which are adjustable in length by the Connecting rod c are connected to each other, d is a movable intermediate piece and e the rubber wedge positioned above that serves as a joint stop. With f and g the main joint axes are designated.

Claims (2)

PATENTANSPRÜCHE: I. Oberschenkelprothese mit mechanisch gekuppeltem Knie- und Fußteil, dadurch gekennzeichnet, daß hinter den Hauptgelenkachsen (f) und (g) des Knie- und Fußteiles je ein Hilfsgelenk (a) und (b) angeordnet ist, dessen Achsen durch eine in der Länge einstellbare Zug- und Druckstange (c) miteinander verbunden sind. PATENT CLAIMS: I. Thigh prosthesis with mechanically coupled Knee and foot part, characterized in that behind the main joint axes (f) and (g) the knee and foot part each have an auxiliary joint (a) and (b), the Axes are connected to one another by means of a length-adjustable pull and push rod (c) are connected. 2. Oberschenkelprothese nach Anspruch I, dadurch gekennzeichnet, daß der Fuß in Knöchelhöhe mit einem mit dem Fußhilfsgelenk einerseits und dem Fußhauptgelenk anderseits verbundenen beweglichen Zwi schenstück (d) mit darüberliegendem Gummikeil (e) ausgestattet ist. 2. thigh prosthesis according to claim I, characterized in that that the foot is at ankle height with one with the auxiliary ankle joint on the one hand and the main ankle joint on the other hand connected movable intermediate piece (d) with overlying rubber wedge (e) is equipped.
DEW1280A 1950-02-28 1950-02-28 Thigh prosthesis with mechanically coupled knee and foot sections Expired DE830991C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW1280A DE830991C (en) 1950-02-28 1950-02-28 Thigh prosthesis with mechanically coupled knee and foot sections

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW1280A DE830991C (en) 1950-02-28 1950-02-28 Thigh prosthesis with mechanically coupled knee and foot sections

Publications (1)

Publication Number Publication Date
DE830991C true DE830991C (en) 1952-02-11

Family

ID=7591166

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW1280A Expired DE830991C (en) 1950-02-28 1950-02-28 Thigh prosthesis with mechanically coupled knee and foot sections

Country Status (1)

Country Link
DE (1) DE830991C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800334A (en) * 1971-01-07 1974-04-02 Friberg Ab K Arrangement in feet for leg prostheses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800334A (en) * 1971-01-07 1974-04-02 Friberg Ab K Arrangement in feet for leg prostheses

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