CH627363A5 - Endoprosthetic hinge joint - Google Patents
Endoprosthetic hinge joint Download PDFInfo
- Publication number
- CH627363A5 CH627363A5 CH367478A CH367478A CH627363A5 CH 627363 A5 CH627363 A5 CH 627363A5 CH 367478 A CH367478 A CH 367478A CH 367478 A CH367478 A CH 367478A CH 627363 A5 CH627363 A5 CH 627363A5
- Authority
- CH
- Switzerland
- Prior art keywords
- pliers
- coil spring
- endoprosthetic
- spring
- hinge joint
- Prior art date
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Classifications
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- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
- A61F2/4241—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30159—Concave polygonal shapes
- A61F2002/30166—H-shaped or I-shaped
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
- A61F2002/305—Snap connection
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30574—Special structural features of bone or joint prostheses not otherwise provided for with an integral complete or partial collar or flange
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
- A61F2002/30624—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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
- A61F2002/30649—Ball-and-socket joints
- A61F2002/30662—Ball-and-socket joints with rotation-limiting means
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/3082—Grooves
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
- A61F2/4241—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers
- A61F2002/4251—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers for metacarpo-phalangeal joints, i.e. MCP or MP joints, e.g. knuckle 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0028—Shapes in the form of latin or greek characters
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Description
Vorrichtung zum Verbinden einer Spiralfeder mit der Welle einer Unruh. Device for connecting a spiral spring to the shaft of a balance.
Die vorliegende Erfindung betrifft eine Vorrichtung zum Verbinden einer Spiralfeder mit der Welle einer Unruh, mit einem sowohl mit der Unruhwelle als auch mit der Spiralfeder lösbar verbindbaren Kupplungsteil. Bei einer bereits vorgeschlagenen Vorrichtung dieser Art ist der Kupplungsteil als im wesentlichen konisch gestaltete Hülse ausgebildet, auf deren verjüngtes Ende die innerste Windung einer Spiralfeder aufgeschoben und deren gegenüberliegendes Ende auf die Welle einer Unruh aufgesteckt wer The present invention relates to a device for connecting a spiral spring to the shaft of a balance, with a coupling part which can be detachably connected both to the balance shaft and to the spiral spring. In an already proposed device of this type, the coupling part is designed as an essentially conical sleeve, on the tapered end of which the innermost turn of a spiral spring is pushed and the opposite end of which is attached to the shaft of a balance wheel
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den kann. Das zum Aufschieben der Spiralfeder bestimmte verjüngte Ende der Hülse weist einseitig einen radialen Schlitz zur Aufnahme des einwärts gebogenen inneren Endes der Spiralfeder auf, doch wird dieses Ende der Spiralfeder im Schlitz nicht geklemmt. Das Aufschieben der Spiralfeder auf das konische Hülsenende ist umständlich und es besteht immer die Gefahr, dass die Stelle, ausserhalb welcher die Feder frei schwingen kann, nicht eindeutig bestimmt ist. that can. The tapered end of the sleeve intended to slide on the coil spring has a radial slot on one side for receiving the inwardly bent inner end of the coil spring, but this end of the coil spring is not clamped in the slot. Pushing the spiral spring onto the conical sleeve end is cumbersome and there is always the risk that the point outside of which the spring can swing freely is not clearly determined.
Es ist das Ziel vorliegender Erfindung, die erwähnten Nachteile dadurch zu beheben, dass der Kupplungsteil als Zange ausgebildet ist und dass Mittel zum Betätigen der Zange vorhanden sind. Die Zange gestattet, die Spiralfeder am einwärts gebogenen inneren Ende zu erfassen und damit eindeutige Verhältnisse für die Zählung zu schaffen. Durch die Mittel zum Betätigen der Zange wird das Einlegen des Spiralfederendes in die Zange und das Entfernen der Spiralfeder aus der Zange erheblich erleichtert. Vorzugsweise kann eine Auflagefläche für die Spirale vorgesehen sein, auf welche die Spirale vor dem Festklemmen ihres inneren Endes in der Zange aufgelegt werden kann, wodurch stets eine eindeutige Lage der Spiralfeder in der Zange sichergestellt ist und ausserdem das Arbeiten erheblich erleichtert wird. The aim of the present invention is to remedy the disadvantages mentioned in that the coupling part is designed as pliers and that means for actuating the pliers are present. The pliers allow the coil spring to be grasped at the inwardly bent inner end and thus create clear conditions for the count. The means for actuating the pliers make the insertion of the coil spring end into the pliers and the removal of the coil spring from the pliers considerably easier. Preferably, a support surface for the spiral can be provided, on which the spiral can be placed in the pliers before its inner end is clamped, thereby always ensuring a clear position of the spiral spring in the pliers and also making work considerably easier.
Anhand der Zeichnung sind im folgenden ein Ausführungsbeispiel der erfindungsgemässen Vorrichtung und die Arbeitsweise mit dieser Vorrichtung erläutert. An exemplary embodiment of the device according to the invention and the mode of operation with this device are explained below with reference to the drawing.
Fig. 1 zeigt einen Längs-Vertikalschnitt durch die Vorrichtung , 1 shows a longitudinal vertical section through the device,
Fig. 2 zeigt die Vorrichtung in Draufsicht, und Fig. 2 shows the device in plan view, and
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Fig. 3-6 zeigen die Zange in Seiten- und Stirnansicht, Draufsicht und Untersicht. Fig. 3-6 show the pliers in side and front view, top view and bottom view.
Die dargestellte Vorrichtung weist einen Zangenhalter mit einer äusseren, ringartigen Metallplatte 1 mit einer kreisrunden Bohrung 2 sowie zwei halbkreisförmigen inneren Plattenteilen 3 auf, die mittels Madenschrauben 4 in der Bohrung 2 der Platte 1 befestigt sind. Die Platten 3 sind an den aneinanderliegenden, ebenen Flächen mit symmetrisch gegenüberliegenden Fräsungen versehen, die einerseits einen Führungskanal 5 rechteckigen Querschnitts für einen verschiebbaren Hebekeil 6 und anderseits eine rechtwinklig dazu stehende Bohrung oder Aufnahme 7 für die Zange 8 bilden. Der Querschnitt der Aufnahme 7 hat einen kreisrunden Mittelteil und gegenüberliegende rechteckige Fortsätze. Dieser Querschnitt entspricht dem Querschnitt des Zangenkörpers 9 der aus einer im wesentlichen zylindrischen Hülse mit zwei seitlichen Flügeln 10 besteht. Die Zange kann also nur in einer bestimmten Drehlage in die Aufnahme eingesetzt werden und wird in dieser Drehlage gehalten. The device shown has a pliers holder with an outer, ring-like metal plate 1 with a circular bore 2 and two semicircular inner plate parts 3, which are fastened in the bore 2 of the plate 1 by means of grub screws 4. The plates 3 are provided on the adjoining, flat surfaces with symmetrically opposite millings, which on the one hand form a guide channel 5 with a rectangular cross section for a displaceable lifting wedge 6 and on the other hand form a bore or receptacle 7 at right angles to the pliers 8. The cross section of the receptacle 7 has a circular central part and opposite rectangular extensions. This cross section corresponds to the cross section of the pliers body 9, which consists of an essentially cylindrical sleeve with two side wings 10. The pliers can therefore only be inserted into the receptacle in a certain rotational position and is held in this rotational position.
In der Aussenplatte 1 ist in der Fortsetzung des Führungskanals 5 ein Schlitz 11 entsprechender Weite vorgesehen, durch welchen der Keil 6 beim Zusammenbau des Gerätes eingeführt werden kann. Der Keil 6 ist auf einer Stange 12 befestigt, welche in einer die Plattenteile 1 und 3 durchdringenden Bohrung quer zur Axe der Zangenaufnahme 7 verschiebbar ist. In die beiden Bohrungsenden sind Gewindehülsen 13 und 14 eingesetzt, wobei die Gewindehülse 13 der Aufnahme und Abstützung einer auf das innere Ende der Stange 12 wirkenden Druckfeder 15 dient. Das durch die Hülse In the continuation of the guide channel 5, a slot 11 of corresponding width is provided in the outer plate 1, through which the wedge 6 can be inserted when the device is being assembled. The wedge 6 is fastened on a rod 12 which is displaceable transversely to the axis of the pliers receptacle 7 in a bore penetrating the plate parts 1 and 3. Threaded sleeves 13 and 14 are inserted into the two bore ends, the threaded sleeve 13 serving to receive and support a compression spring 15 acting on the inner end of the rod 12. That through the sleeve
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14 herausragende Stangende ist mit einem Betätigungsgriff 16 versehen. 14 outstanding rod end is provided with an operating handle 16.
In einer im oberen Teil der Platten vorgesehenen Bohrung 17 ist ein Spreizdorn 18 verschiebbar angeordnet. Der Dorn weist einen Bund 19 auf, gegen welchen sich eine Druckfeder 20 abstützt und den Dorn normalerweise in der dargestellten äusseren Ruhelage ausser Eingriff mit der Zange 8 hält. Durch Druck gegen eine Taste 21 kann der Spreizdorn in die Zangenaufnahme eingeschoben werden. An expansion mandrel 18 is slidably disposed in a bore 17 provided in the upper part of the plates. The mandrel has a collar 19 against which a compression spring 20 is supported and normally keeps the mandrel out of engagement with the pliers 8 in the outer rest position shown. The expanding mandrel can be inserted into the pliers receptacle by pressing a button 21.
Der Körper 9 der Zange ist mit einem Schlitz 22 versehen in welchen zwei symmetrisch geformte, die eigentliche Greifvorrichtung der Zange bildende Blattfedern 24 eingesetzt sind. Sie weisen beide einen eine Oese 23 bildenden Bogen auf. Das untere Ende des Zangenkörpers ist geschlitzt und mit einer Bohrung versehen, so dass es leicht auf das eine Ende einer Unruhwelle aufgesetzt werden kann. The body 9 of the pliers is provided with a slot 22 in which two symmetrically shaped leaf springs 24 which form the actual gripping device of the pliers are inserted. They both have an arc forming an eyelet 23. The lower end of the body of the pliers is slotted and provided with a hole so that it can easily be placed on one end of a balance shaft.
Das Arbeiten mit der dargestellten Vorrichtung geht wie folgt vor sich: Working with the device shown proceeds as follows:
Zuerst wird eine Zange 8 in die Zangenaufnahme 7 eingesetzt, wobei die in Fig. 1 dargestellte Eindringtiefe der Zange durch die Stange 12 bestimmt wird. Der Spreizdorn 18 wird, jetzt durch Druck gegen die Taste 21 nach links verschoben und dringt in die Oese 23 der Zange ein und spreizt deren Blattfedern 24. Zwischen die gespreizten Federn wird jetzt das innere Ende einer Spiralfeder eingelegt und dann die Taste 21 losgelassen, so dass dieses Federende festgeklemmt wird. Die Spiralfeder liegt dabei auf First, pliers 8 are inserted into the pliers receptacle 7, the penetration depth of the pliers shown in FIG. 1 being determined by the rod 12. The expanding mandrel 18 is now moved to the left by pressing the button 21 and penetrates into the eyelet 23 of the pliers and spreads its leaf springs 24. The inner end of a spiral spring is now inserted between the spreading springs and the button 21 is then released, so that this spring end is clamped. The coil spring lies on it
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den oberen Flächen der Plattentelle 3, welche somit eine Auflage für die Spiralfeder bilden. the upper surfaces of the turntable 3, which thus form a support for the coil spring.
Hierauf wird die Stange 12 mittels des Griffs 16 nach rechts verschoben, wobei der Keil 16 der Stange 12 unter die Zange greift und sie anhebt. Die Zange kann nun mit einer Pinzette er-fasst und auf das eine Ende einer Unruh welle aufgesetzt werden. Es erfolgt nun die erste Zählung in bekannter Weise. Die Spiralfeder wird sodann auf die erforderliche Länge gekürzt, die Zange wird von der Unruhwelle entfernt und in die Aufnahme 7 eingesetzt, und schliesslich wird die Zange durch Eindrücken des Spreizdorns geöffnet. Die Spiralfeder wird jetzt entfernt und zur zugehörigen Unruh gelegt. Die Vorrichtung ist damit wieder in dem in Fig. 1 dargestellten Zustand, in welchem eine neue Spiralfeder in die Zange eingesetzt werden kann. The rod 12 is then shifted to the right by means of the handle 16, the wedge 16 of the rod 12 reaching under the pliers and lifting it up. The pliers can now be gripped with tweezers and placed on one end of a balance shaft. The first count is now carried out in a known manner. The coil spring is then shortened to the required length, the pliers are removed from the balance shaft and inserted into the receptacle 7, and finally the pliers are opened by pressing in the expanding mandrel. The coil spring is now removed and placed on the associated balance. The device is again in the state shown in Fig. 1, in which a new coil spring can be inserted into the pliers.
Die dargestellte Vorrichtung kann leicht an eine bestehende Zählmaschine, insbesondere die unter der Bezeichnung "Spiro-matic" bekannte Zählmaschine angebaut werden. The device shown can easily be attached to an existing counting machine, in particular the counting machine known under the name "Spiro-matic".
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Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1431677A GB1602465A (en) | 1977-04-05 | 1977-04-05 | Endoprosthetic joints |
Publications (1)
Publication Number | Publication Date |
---|---|
CH627363A5 true CH627363A5 (en) | 1982-01-15 |
Family
ID=10038996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH367478A CH627363A5 (en) | 1977-04-05 | 1978-04-05 | Endoprosthetic hinge joint |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH627363A5 (en) |
DE (1) | DE2814752A1 (en) |
GB (1) | GB1602465A (en) |
IE (1) | IE46519B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9316763U1 (en) * | 1993-11-03 | 1994-01-20 | Howmedica GmbH, 24232 Schönkirchen | Endoprosthesis for the proximal wrist |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4180871A (en) * | 1977-11-02 | 1980-01-01 | Hamas Robert S | Pre-centered total wrist prosthesis |
EP0049298B1 (en) * | 1979-02-22 | 1985-02-13 | John Milton Agee | Joint prosthesis |
US4280231A (en) * | 1979-06-14 | 1981-07-28 | Swanson Alfred B | Elbow prosthesis |
GB2126097B (en) * | 1982-07-05 | 1986-02-19 | Howmedica | Prosthetic finger joint |
GB2159572A (en) * | 1984-05-25 | 1985-12-04 | Gerald Anthony Speich | Improved ball and socket joint |
US5290314A (en) * | 1992-01-31 | 1994-03-01 | Sulzer Medizinaltechnik Ag | Finger joint prosthesis made of metal |
DE9216202U1 (en) * | 1992-11-28 | 1993-01-14 | S + G Implants GmbH, 2400 Lübeck | Prosthesis for replacing a middle finger joint |
FR2739550B1 (en) * | 1995-10-05 | 1997-12-26 | Commissariat Energie Atomique | DIGITAL JOINT PROSTHESIS WITH FLOATING AXIS |
NL1009550C2 (en) * | 1998-07-03 | 2000-01-10 | Straten Beheer B V Van | Joint prosthesis, in particular finger joint prosthesis. |
ATE470412T1 (en) * | 2007-11-07 | 2010-06-15 | Gs Dev Ab | ARTIFICIAL JOINT |
-
1977
- 1977-04-05 GB GB1431677A patent/GB1602465A/en not_active Expired
-
1978
- 1978-04-03 IE IE64978A patent/IE46519B1/en unknown
- 1978-04-05 CH CH367478A patent/CH627363A5/en not_active IP Right Cessation
- 1978-04-05 DE DE19782814752 patent/DE2814752A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9316763U1 (en) * | 1993-11-03 | 1994-01-20 | Howmedica GmbH, 24232 Schönkirchen | Endoprosthesis for the proximal wrist |
Also Published As
Publication number | Publication date |
---|---|
GB1602465A (en) | 1981-11-11 |
IE46519B1 (en) | 1983-07-13 |
IE780649L (en) | 1978-10-05 |
DE2814752A1 (en) | 1978-10-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |