FR2469917A1 - Passive articulated hand prosthesis - permits simultaneous external adjustment of grip and traction force exerted on rope - Google Patents
Passive articulated hand prosthesis - permits simultaneous external adjustment of grip and traction force exerted on rope Download PDFInfo
- Publication number
- FR2469917A1 FR2469917A1 FR7928445A FR7928445A FR2469917A1 FR 2469917 A1 FR2469917 A1 FR 2469917A1 FR 7928445 A FR7928445 A FR 7928445A FR 7928445 A FR7928445 A FR 7928445A FR 2469917 A1 FR2469917 A1 FR 2469917A1
- Authority
- FR
- France
- Prior art keywords
- hand prosthesis
- passive
- grip
- rope
- prosthesis
- 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.)
- Granted
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
- A61F2/54—Artificial arms or hands or parts thereof
- A61F2/58—Elbows; Wrists ; Other joints; Hands
- A61F2/583—Hands; Wrist 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/0082—Additional features; Implant or prostheses properties not otherwise provided for specially designed for children, e.g. having means for adjusting to their growth
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Transplantation (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (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)
Abstract
Description
DESCRIPTiON a) Prothèse esthétique de main à préhension passive pour enfant. DESCRIPTION a) Aesthetic hand prosthesis with passive grip for children.
b) La présente invention concerne l'appareillage du membre supérieur du jeune enfant handi
capé congénital ou traumatique.b) The present invention relates to the apparatus of the upper limb of a young disabled child
congenital or traumatic cap.
c) Le dispositif de préhension actuellement commercialisé qui est proposé à l'enfant amputé
de membre supérieur se résume en une pince constituée par deux doigts métalliques dont
l'un est fixe, l'autre mobile. Un élastique permet le rappel en fermeture. Un câble relié à
un ergot placé sur le doigt mobile permet par traction l'ouverture de la pince. Ce système
est inesthétique et peut s'avérer dangereux.c) The gripping device currently on the market which is offered to amputated children
of upper limb is summarized in a clamp constituted by two metallic fingers of which
one is fixed, the other mobile. An elastic allows the recall in closing. A cable connected to
a lug placed on the movable finger allows the opening of the clamp by traction. This system
is unsightly and can be dangerous.
d) La prothèse suivant l'invention permet une préhension physiologique réalisée par un ensemble de quatre doigts mobiles autour d'un axe, en opposition avec un pouce tire. d) The prosthesis according to the invention allows a physiological grip carried out by a set of four fingers movable around an axis, in opposition with a thumb pulls.
La force de pincement peut être réglée de l'extérieur de la prothèse.The gripping force can be adjusted from outside the prosthesis.
Le pouce est détachable, ce qui facilite la mise en place d'un gant de recouvrement en matière synthétique imitant la peau.The thumb is detachable, which facilitates the installation of a covering glove made of synthetic material imitating the skin.
Le poids de la main recouverte est inférieur à 150 grammes. Cette faible inertie est appréciable lorsqu'il s'agit d'appareiller un moignon court. D'autre part l'encombrement de l'ensemble mécanique est faible, ce qui permet d'appareiller les moignons longs, jusqu'à un niveau correspondant à une désarticulation du poignet.The weight of the covered hand is less than 150 grams. This low inertia is appreciable when it comes to fitting a short stump. On the other hand, the size of the mechanical assembly is small, which makes it possible to fit the long stumps, up to a level corresponding to a disarticulation of the wrist.
Le module contenant le mécanisme peut être utilisé pour les prothèses de 2 à 8 ans.The module containing the mechanism can be used for prostheses from 2 to 8 years old.
e) La prothèse objet de l'invention peut être réalisée en matière plastique injectée ou en alliage léger. Elle est formée de cinq éléments:
- un châssis C représentant la partie métacarpienne de la main servant de support
aux autres éléments
- un peigne de quatre doigts D mobile autour d'un axe
- un pouce escamotable P fixé par deux fiches parallèles 7
- un mécanisme M permettant la fermeture passive de la pince formée par les doigts
et le pouce, et son ouverture active.e) The prosthesis which is the subject of the invention can be made of injected plastic or of a light alloy. It is made up of five elements:
- a frame C representing the metacarpal part of the hand serving as support
to the other elements
- a comb of four fingers D movable around an axis
- a retractable thumb P fixed by two parallel plugs 7
- a mechanism M allowing passive closure of the clamp formed by the fingers
and thumb, and its active opening.
- un gant de revêtement en matière synthétique souple destiné à protéger le méca
nisme, à améliorer la préhension et à donner une bonne esthétique à la prothèse.- a flexible synthetic coating glove intended to protect the mechanic
nism, to improve the grip and to give a good esthetics to the prosthesis.
Le mécanisme comporte un roulement R fixé sur un segment mobile 2 autour d'un axe 3 agissant sur un poussoir 4 articulé par deux bielles parallèles 5 solidaires des doigts par l'intermédiaire d'un axe 6.The mechanism comprises a bearing R fixed on a movable segment 2 around an axis 3 acting on a pusher 4 articulated by two parallel connecting rods 5 secured to the fingers via an axis 6.
Les doigts mûs par les bielles pivotent autour de l'axe 1.The fingers moved by the connecting rods pivot around axis 1.
Le poussoir 4 rappelé par un ressort 9 logé à l'intérieur pénètre dans la douille de fixation.The pusher 4, recalled by a spring 9 housed inside, enters the fixing sleeve.
Un boulon 10 dont la tête est plus large que le diamètre du ressort en assure la compression.
La tige du boulon passe par l'axe du ressort, traverse le fond du poussoir et sort de la douille. L'extrêrnité proximale du boulon est filetée permettant ainsi par un écrou le réglage 8 de la compression du ressort et par la même de la force de pincement.A bolt 10 whose head is wider than the diameter of the spring ensures compression.
The bolt rod passes through the axis of the spring, crosses the bottom of the plunger and leaves the socket. The proximal end of the bolt is threaded, thus allowing adjustment 8 of the compression of the spring and by the same of the gripping force by a nut.
La commande de l'ouverture de la main se fait par l'intermédiaire d'un câble 12 fixé à l'extrêmité mobile du segment 2.The opening of the hand is controlled by means of a cable 12 fixed to the movable end of segment 2.
Le câble est renvoyé par une poulie 13 vers l'extérieur de l'extrêmité proximale de la main.The cable is returned by a pulley 13 to the outside of the proximal end of the hand.
L'activation de la prothèse par l'intermédiaire du câble peut se faire soit par le mouvement de l'épaule contro#atérale s'écartant de la ceinture scapulaire, soit par une traction procurée par un dispositif mécanique ou électromécanique annexe. Activation of the prosthesis via the cable can be done either by the movement of the contralateral shoulder moving away from the shoulder girdle, or by traction provided by a mechanical or electromechanical device attached.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7928445A FR2469917B1 (en) | 1979-11-19 | 1979-11-19 | PASSIVE GRIPPING AESTHETIC HAND PROSTHESIS FOR CHILDREN |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7928445A FR2469917B1 (en) | 1979-11-19 | 1979-11-19 | PASSIVE GRIPPING AESTHETIC HAND PROSTHESIS FOR CHILDREN |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2469917A1 true FR2469917A1 (en) | 1981-05-29 |
FR2469917B1 FR2469917B1 (en) | 1986-10-10 |
Family
ID=9231829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7928445A Expired FR2469917B1 (en) | 1979-11-19 | 1979-11-19 | PASSIVE GRIPPING AESTHETIC HAND PROSTHESIS FOR CHILDREN |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2469917B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5116386A (en) * | 1991-02-15 | 1992-05-26 | Scribner Albert W | Hand prosthesis |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB627944A (en) * | 1947-09-02 | 1949-08-18 | Melville Douglas Picknell | Improvements in artificial hands |
DE901583C (en) * | 1951-09-21 | 1954-01-14 | Gertrud Schulz Geb Weimann | Grapple hook |
US3413658A (en) * | 1965-10-20 | 1968-12-03 | Daniel B. Becker | Artificial hand having a body constructed from separate molded plastic parts for easier replacement of damaged parts |
DE2426711A1 (en) * | 1974-03-08 | 1975-09-11 | Orthopaedietech Forsch | Adaptive hand prosthesis - can use thumb to make fist grip and tong grip |
-
1979
- 1979-11-19 FR FR7928445A patent/FR2469917B1/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB627944A (en) * | 1947-09-02 | 1949-08-18 | Melville Douglas Picknell | Improvements in artificial hands |
DE901583C (en) * | 1951-09-21 | 1954-01-14 | Gertrud Schulz Geb Weimann | Grapple hook |
US3413658A (en) * | 1965-10-20 | 1968-12-03 | Daniel B. Becker | Artificial hand having a body constructed from separate molded plastic parts for easier replacement of damaged parts |
DE2426711A1 (en) * | 1974-03-08 | 1975-09-11 | Orthopaedietech Forsch | Adaptive hand prosthesis - can use thumb to make fist grip and tong grip |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5116386A (en) * | 1991-02-15 | 1992-05-26 | Scribner Albert W | Hand prosthesis |
Also Published As
Publication number | Publication date |
---|---|
FR2469917B1 (en) | 1986-10-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse | ||
AR | Application made for restoration | ||
BR | Restoration of rights |