DE19859952A1 - Micro-surgical clamps are produced from a flat strip of metal remaining attached within a recess in the strip - Google Patents
Micro-surgical clamps are produced from a flat strip of metal remaining attached within a recess in the stripInfo
- Publication number
- DE19859952A1 DE19859952A1 DE19859952A DE19859952A DE19859952A1 DE 19859952 A1 DE19859952 A1 DE 19859952A1 DE 19859952 A DE19859952 A DE 19859952A DE 19859952 A DE19859952 A DE 19859952A DE 19859952 A1 DE19859952 A1 DE 19859952A1
- Authority
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- Germany
- Prior art keywords
- strip
- clamp
- clip
- bracket
- neck
- 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.)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/128—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/122—Clamps or clips, e.g. for the umbilical cord
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B2017/1107—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis for blood vessels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B2017/1132—End-to-end connections
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/03—Automatic limiting or abutting means, e.g. for safety
- A61B2090/037—Automatic limiting or abutting means, e.g. for safety with a frangible part, e.g. by reduced diameter
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Reproductive Health (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Clamps And Clips (AREA)
- Surgical Instruments (AREA)
Abstract
Description
Die Erfindung betrifft eine Klammer mit zwei von einer Seite eines Klammerjoches in Abstand zueinander abragenden Klammerarmen, wobei das Klammerjoch an seiner anderen Seite mit einem Klammerhals verbunden ist. Zudem erfaßt die Er findung eine Verwendung der Klammer sowie eine Vorrichtung zum Aufbringen wenigstens einer Klammer.The invention relates to a clip with two of one Side of a bracket yoke projecting at a distance from each other Bracket arms, with the bracket yoke on its other side is connected with a bracket neck. In addition, he recorded Find a use of the bracket and a device for applying at least one clip.
Eine Klammer der eingangs genannten Art offenbart die US-A- 4 929 240 anhand eines blattartigen Formstückes; durch eine Bohrung nahe einer Kante dieses Formstückes entstehen als Bohrungsbegrenzungen sowohl das Klammerjoch als auch die beiden gekrümmten Klammerarme. Das Klammerjoch hängt an einem zungenartigen Materialsteg, welcher von einer Zange oder Pinzette erfasst und nach dem Applizieren der Klammer von dieser abgeklemmt werden kann. Letzteres erfolgt durch ein seitliches Einquetschen des Materialsteges.A bracket of the type mentioned initially discloses the US-A- 4 929 240 using a sheet-like shaped piece; by a Bore near an edge of this fitting arise as Bore boundaries both the Klammerjoch and the two curved clamp arms. The Klammerjoch is attached a tongue-like material web, which is from a pair of pliers or tweezers and after applying the clip can be disconnected from this. The latter is done by a lateral squeezing of the material web.
Die WO 9010418 bietet eine ebenfalls aus einem Klammerjoch und zwei zueinander parallelen Klammerarmen hergestellte Kunststoffklammern für chirurgische Zwecke an. Hier sind die Klammerarme in entspanntem Zustand mit ihren gekrümmten freien Enden aneinandergelegt, so dass innerhalb der Klam mer ein etwa ovales Aufnahmeloch entsteht.WO 9010418 also offers a bracket yoke and two mutually parallel clamp arms Plastic clips for surgical purposes. Here are the clamp arms in their relaxed state with their curved ones free ends put together so that within the Klam an approximately oval hole is created.
In Kenntnis dieses Standes der Technik hat sich der Erfin der das Ziel gesetzt, eine Klammer sowie eine Vorrichtung dafür anzubieten, die auf einfache Weise am Gebrauchsort appliziert zu werden vermag. Diese Klammer soll insbeson dere für chirurgische, vor allem aber für mikrochirurgische Zwecke eingesetzt werden können. The Erfin has knowledge of this state of the art which set the goal, a bracket as well as a device for offering that in a simple way at the place of use can be applied. This bracket should in particular especially for surgical, but especially for microsurgical Purposes can be used.
Zur Lösung dieser Aufgabe führen die Lehren der unabhängi gen Ansprüche; die Unteransprüche geben günstige Weiterbil dungen an. Zudem fallen in den Rahmen der Erfindung alle Kombinationen aus zumindest zwei der in der Beschreibung, der Zeichnung und/oder den Ansprüchen offenbarten Merkmale.The teachings of the indepen against claims; the subclaims give favorable further education applications. In addition, all fall within the scope of the invention Combinations of at least two of those in the description, the drawing and / or the features disclosed.
Erfindungsgemäß ist die Klammer Teil eines flachen Werk stoffblattes und aus diesem innerhalb einer fensterähn lichen Ausnehmung so herausgeformt, dass sie mit ihm durch ein Zwischenelement verbunden ist. Vorteilhafterweise soll das dünne Werkstoffblatt streifenförmig ausgebildet und mit mehreren in seiner Blattebene in einer Streifenachse hintereinander angeordneten Klammern versehen sein. Dies hat den Vorzug, dass das Werkstoffblatt eine Art Magazin für die Klammern darstellt, die zum Gebrauch der Reihe nach aus ihm entfernt werden können.According to the invention, the clip is part of a flat work fabric sheet and from this within a window-like shaped recess so that it fits with it is connected by an intermediate element. Advantageously the thin sheet of material should be formed in strips and with several in its leaf level in one Provide strip axis brackets arranged one behind the other his. This has the advantage that the material sheet is a kind Magazine for the brackets used to use the Can be removed from it in sequence.
Zudem hat sich als günstig erwiesen, die Breite des Werk stoffstreifens etwa der dreifachen Breite der Klammer ent sprechen zu lassen, um dem filmartig aus einem Metallwerk stoff erzeugten Magazinstreifen einer bevorzugten Dicke von lediglich 0,075 mm eine ausreichende Festigkeit zu verlei hen.The breadth of the plant has also proven to be favorable strip approximately three times the width of the bracket to let it speak, like a film from a metal plant fabric-produced magazine strips of a preferred thickness of only 0.075 mm to provide sufficient strength hen.
Nach einem weiteren Merkmal der Erfindung soll das seiner seits streifenähnliche Zwischenelement von einer die Strei fenachse querenden Kante ausgehen; in Abstand zu dieser Kante kann an das Zwischenelement das Klammerjoch ausge formt sein, wobei die Klammerarme zu einer weiteren, die Streifenachse querenden Kante der Ausnehmung hin gerichtet sind. Die Einheit aus der Klammer und ihrem stielartigen Zwischenelement füllt also die Ausnehmung i.w. aus und kann zungenartig einends aus der Ebene des Werkstoffstrei fens angehoben werden. According to a further feature of the invention, that of its on the one hand the strip-like intermediate element of one of the stripes go out edge crossing edge; at a distance from this Edge can the clamp yoke out on the intermediate element be shaped, with the clamp arms forming another, the Stripe axis traversing edge of the recess directed are. The unit from the bracket and its stem-like Intermediate element fills the recess i.w. off and can be tongue-like at one end from the plane of the material streak fens can be raised.
In dem Magazinstreifen bilden erfindungsgemäß die Ausneh mungen Fenster, die jeweils von den die Streifenachse que renden Kanten und diese verbindenden Längskanten begrenzt sind; die Breite des Fensters soll etwa der Breite der Klammer entsprechen, d. h. letztere grenzt mit den Außen anten ihrer Klammerarme an die Fensterlängskanten.According to the invention, the recess is formed in the magazine strip window, each of which the stripe axis que edges and these connecting longitudinal edges are limited are; the width of the window should be about the width of the Match brackets, d. H. the latter borders with the outside antennas of their clamp arms on the window longitudinal edges.
Nach einem weiteren Merkmal der Erfindung soll das Zwischenelement ein sich von der Anschlusskante zur Klammer hin verjüngender Klammerhals sein, dessen Längskanten mit den Längskanten des Fensters einen Winkel begrenzen; hier durch ergibt sich eine in Gleitrichtung des Werkstoffstrei fens zunehmende Stabilität des Halsquerschnitts. Bei einer anderen Ausgestaltung ist der Klammerhals ein sich zwischen der Anschlusskante und der Klammer erstreckender schmaler Werkstoffsteg.According to a further feature of the invention Intermediate element extending from the connecting edge to the clip tapering staple neck, the longitudinal edges of which limit the longitudinal edges of the window at an angle; here this results in a sliding direction of the material streak fens increasing stability of the neck cross-section. At a another embodiment, the bracket neck is an between the connecting edge and the bracket extending narrower Material web.
Insbesondere der Beschreibung der Zeichnung zu entnehmende Maßverhältnisse - beispielsweise das Verhältnis der zur Streifenachse parallelen Länge des Fensters zu dessen Breite von etwa 2:1 - widmen sich der Erhöhung der Festigkeit des dünnen Filmmaterials. Gleichem Zwecke dient die Maßgabe, dass der vom Klammerjoch auswärts geneigte Klammerarm mit der benachbarten Längskante des Fensters des Werkstoffstreifens einen spitzen Winkel begrenzt.In particular the description of the drawing can be found Dimensional relationships - for example the ratio of the to Strip axis parallel length of the window to its Width of about 2: 1 - are dedicated to increasing the Strength of the thin film material. Serves the same purpose the proviso that the inclined outward from the Klammerjoch Bracket arm with the adjacent longitudinal edge of the window of the Strips an acute angle.
Zur Ausbildung eines Klammermauls hat es sich als günstig erwiesen, den Klammerarm in der Ebene des Werkstoffstrei fens endwärts zur Streifenachse hin zu einem Greifende zu biegen - beide Klammerarme bilden so eine Art von Grei fereinheit.It has proven to be favorable to form a clamp jaw proven the bracket arm in the plane of the material streak fens towards the end of the strip towards a gripping end bend - both clamp arms form a kind of Grei unit.
Am Übergang vom Klammerjoch zum Klammerhals an dessen Längskanten vorhandene Kerbungen erleichtern erfindungsge mäß das Abtrennen der Klammer von ihrem Klammerhals. At the transition from the Klammerjoch to the Klammerhals at its Longitudinal existing notches facilitate fiction, ge according to the separation of the clip from its clip neck.
Die erfindungsgemäße Klammer kann an sich in vielen Berei chen der Technik zum Einsatz gelangen, bevorzugt aber soll sie im Rereich der Chirurgie - vor allem der Mikrochirur gie - Verwendung finden.The clip according to the invention can be used in many areas Chen technology used, but should preferably she in the field of surgery - especially microsurgery gie - find use.
Im Rahmen der Erfindung liegt eine Vorrichtung zum Aufbrin gen wenigstens einer chirurgischen Klammer als Teil eines Werkstoffstreifens; die Vorrichtung weist eine querschnitt lich teilkreisförmig oder teiloval gekrümmte Kopffläche auf, welche an zumindest eine Auflagefläche für den Werk stoffstreifen anschließt, sowie eine mittige Pultnut für den Klammerhals der Klammer.In the context of the invention is a device for Aufbrin against at least one surgical clip as part of one Strip of material; the device has a cross section Lich part-circular or partially oval head surface on at least one support surface for the work strips of fabric and a central desk groove for the clip neck of the clip.
Das Nutentiefste der Pultnut verläuft vorteilhafterweise in einem Neigungswinkel - von bevorzugt 45° - zur Ebene der Auflagefläche und veranlasst, die Zungen aus Klammer und Klammerhals sich in eine Applikationsstellung zu begeben, in der die Klammer ein Gefäß od. dgl. Teil zu erfassen vermag.The deepest groove of the desk groove advantageously runs in an angle of inclination - preferably 45 ° - to the plane of the Bearing surface and causes the tongues to clip and Clamp neck to move into an application position, in which the clamp to grasp a vessel or the like can
Zur Unterstützung dieses Vorganges - einschließlich des nachfolgenden Abtrennvorganges - kann die Kopffläche beid seits der Pultnut Widerlager für das Klammerjoch des dann in der Pultnut angeordneten Klammerhalses der betroffenen Klammer enthalten.To support this process - including the subsequent separation process - the head surface can be both on the part of the Pultnut abutment for the clamp yoke of the then the neck of the affected person arranged in the console groove Brackets included.
Als günstig haben sich zur Führung der Klammer noppenartige Begrenzungsanschläge erwiesen, welche eine Bewegungsbahn für die Klammer bestimmen.Knobs have been found to be cheap for guiding the clamp Limiting stops have been proven, which is a trajectory determine for the bracket.
Auf der Kopffläche wird der Werkstoffstreifen in Gleitrich tung fortbewegt, bis eine neue Einheit Klammerhals/Klammer in jener Pultnut angekommen ist; in die Bewegungsbahn der im erwähnten Krümmungsbereich sich einends aus dem Werk stoffstreifen heraushebenden Klammer mag ein Anschlagele ment - etwa ein Draht - einragen, der die genaue Klammer position festlegt. Die Gleitrichtung für den auf die Vor richtung aufgelegten Werkstoffstreifen verläuft gegen die Öffnungsrichtung des von den Klammerarmen begrenzten Klam mermauls der Klammer. On the top surface, the material strip is made in sliding direction until a new staple neck / staple unit is moved has arrived in that desk groove; in the trajectory of the in the area of curvature mentioned at one end from the factory The strip of material lifting out of the clamp likes a stop element ment - about a wire - protrude the exact bracket position. The sliding direction for the on the front direction of the material strip runs against the Opening direction of the clamp limited by the clamp arms mermauls the bracket.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung; diese zeigt in:Further advantages, features and details of the invention result from the following description more preferred Exemplary embodiments and with reference to the drawing; this shows in:
Fig. 1 einen vergrößerten Ausschnitt aus zwei Gefäßab schnitten eines Lebewesens, die an einer Trenn linie durch Klammern zusammengehalten werden; Figure 1 shows an enlarged section of two Gefäßab sections of a living being, which are held together on a separating line by brackets.
Fig. 2 eine Draufsicht auf eine gegenüber Fig. 1 ver größerte Klammer als Teil eines sie anbietenden Materialstreifens; Fig. 2 is a plan view of a ver compared to Figure 1 larger bracket as part of a strip of material offering it;
Fig. 3 die gegenüber Fig. 2 verkleinerte Draufsicht auf den Materialstreifen mit mehreren Klammern; FIG. 3 shows the plan view of the material strip with several clamps, which is reduced compared to FIG. 2;
Fig. 4 die Frontansicht eines Werkzeuges zum Anbringen der Klammern; Figure 4 shows the front view of a tool for attaching the brackets.
Fig. 5, 7 die Seitenansicht zweier Ausgestaltungen des Werkzeuges mit aufliegendem Materialstreifen; Fig. 5, 7, the side view of two embodiments of the tool with lifting the material strip;
Fig. 6, 8 die Frontansicht des Werkzeuges nach Fig. 5 mit dem Materialstreifen bzw. nach Fig. 7 mit einer Einlauföffnung. FIGS. 6, 8, the front view of the tool of Fig. 5 with the material strip or of FIG. 7 with an inlet opening.
Zwei Abschnitte 10, 10 a eines menschlichen Körpergefäßes werden entlang einer Trenn- oder Grenzlinie 12 durch Klam mern 14 zusammengehalten. Jede dieser - in der Mikrochir urgie einzusetzenden - Klammern 14 besteht aus zwei von einem Klammerjoch 16 beidseits abragenden Klammerarme oder Backen 18 mit jeweils einem endwärtigen Greifende 20; in der dargestellten Greifstellung halten beide Greifenden 20 zwischen sich die aneinanderliegenden Endbereiche der Ge fäßabschnitte 10, 10 a. Two sections 10 , 10 a of a human body vessel are held together along a dividing or boundary line 12 by clips 14 . Each of these - in the Mikrochir urgie employed - brackets 14 consists of two by a Klammerjoch 16 projecting on both sides of clamp arms or jaws 18, each having a gripping end 20 endwärtigen; in the illustrated gripping position gripping both ends 20 10 hold between them the adjacent end portions of the Ge fäßabschnitte 10 a.
Die Klammer 14 einer beispielsweisen Länge a von hier 0,4 mm sowie einer Breite b von 0,6 mm ist vor ihrer Applizie rung Teil eines filmartigen Werkstoffblattes oder Material streifens 22 von hier beispielhaft 12 mm Breite c und einer Dicke d von 0,075 mm aus einem rostfreien Dünnblech. Dieser Materialstreifen 22 dient als Werkstückträger für die Klam mern 14, die jeweils mit einem sie enthaltenden Fenster 24 aus dem Werkstoff des Materialstreifens 22 beispielsweise durch Laserstrahlen herausgeformt worden sind. Die Breite b1 eines solchen Fensters 24 misst 0,61 mm, seine Länge e hier 1,2 mm bei einem Abstand f von etwa 0,4 mm der Fenster 24 voneinander.The clip 14, for example a length a of 0.4 mm here and a width b of 0.6 mm, is part of a film-like material sheet or material strip 22 of example 12 mm width c and a thickness d of 0.075 mm before its application a stainless thin sheet. This strip of material 22 serves as a workpiece carrier for the clamps 14 , each of which has been formed with a window 24 containing it from the material of the strip of material 22, for example by laser beams. The width b 1 of such a window 24 measures 0.61 mm, its length e here 1.2 mm at a distance f of approximately 0.4 mm between the windows 24 .
Das Fenster 24 der Fig. 2 wird von zwei - parallel zur Streifenachse A verlaufenden - Längskanten 26 und einer Schmalkante 28 bestimmt; von dem anderen Ende jeder Längs kante 26 geht die Flankenkante 30 eines Klammerhalses 32 in einem Winkel w von etwa 18° aus, und die Flankenkante 30 begrenzt mit der Längskante 26 ein zipfelartiges Fenstereck 25. Im übrigen ist jene Streifenachse A zugleich Symmetrie gerade für den Klammerhals 32 und die mit diesem einstückig hergestellte Klammer 14.The window 24 in FIG. 2 is determined by two longitudinal edges 26 and a narrow edge 28 which run parallel to the strip axis A; from the other end of each longitudinal edge 26 is the back edge 30 of a clamp neck 32 at an angle w of about 18 °, and the flank edge 30 defines with the longitudinal edge 26, a tip-like window corner 25th Otherwise, that strip axis A is also symmetry for the clip neck 32 and the clip 14 made in one piece with it.
Der Abstand h des Fensterecks 25 zum Übergang 34 des Klam merhalses 32 in das Klammerjoch 16 beträgt 8 mm, und die Breite i des Übergangs misst etwa 0,08 mm. Vom Klammerjoch 16 ragen - wie vor allem Fig. 2 erkennen lässt - die Klammerarme oder Backen 18 in einem Winkel t von etwa 20° zur Längskante 26 des Fensters 24 hummerscherenartig ab und gehen nahe der benachbarten Schmalkante 28 des Fensters 24 jeweils in eines der rechtwinkelig abgewinkelten, zur Streifenachse A weisenden Greifenden 20 über. Die Breite n der Klammerarme 18 - und auch des Klammerjoches 16 - be trägt hier etwa 0,1 mm.The distance h from the window corner 25 to the transition 34 of the clamp neck 32 into the clamp yoke 16 is 8 mm, and the width i of the transition measures approximately 0.08 mm. Protrude from Klammerjoch 16 - such as in particular Fig can 2 recognize -. The clamping arms or jaws 18 at an angle t of about 20 ° to the longitudinal edge 26 of the window 24 hummer like scissors and go close to the adjacent narrow edge 28 of the window 24 in each case in one of the right angles angled gripping ends 20 pointing to the stripe axis A. The width n of the bracket arms 18 - and also the bracket yoke 16 - be about 0.1 mm here.
In den flexiblen Materialstreifen 22 sind etwa fünfzehn bis zwanzig Fenster 24 mit derartigen Einheiten aus den Klam mern 14 und ihren Klammerhälsen 32 eingebracht. Zur Appli zierung der Klammern 14 wird der Materialstreifen 22 in Gleitrichtung x über ein Werkzeug 40 geführt, das gemäß Fig. 4, 5 eine längsschnittlich teilkreisförmig oder teil oval gekrümmte Kopffläche 42 anbietet. In dieser verläuft - in Frontansicht nach Fig. 4 - in der Werkzeugmittellinie M eine geneigte Pultnut 44, 44 a zur Aufnahme von Klammer hals 32 und Klammer 14 des darübergelegten Materialstrei fens 22; das Nutentiefste 46 ist in einem Neigungswinkel y zur seitlichen Werkzeugoberfläche 38 bzw. zu deren Ebene Q geneigt. Dieser Neigungswinkel y ist im dargestellten Aus führungsbeispiel mit etwa 45° gewählt. Nicht wiedergegeben ist, dass dieser Neigungswinkel zwischen etwa 15° und 50° messen kann.In the flexible strips of material 22 about fifteen to twenty windows 24 are inserted with such units from the clamps 14 and their clamp necks 32 . Appli cation to the brackets 14 of the strip of material is guided x 22 in the sliding direction through a tool 40 according to Fig. 4, 5 in longitudinal section a part-circular or part oval curved head surface 42 offers. In this - in the front view according to FIG. 4 - in the tool center line M an inclined desk groove 44 , 44 a for receiving clamp neck 32 and clamp 14 of the overlying material strip 22 ; the deepest groove 46 is inclined at an inclination angle y to the lateral tool surface 38 or to the plane Q thereof. This angle of inclination y is selected in the exemplary embodiment shown from approximately 45 °. It is not shown that this angle of inclination can measure between approximately 15 ° and 50 °.
In Fig. 4 ist die Kontur der Pultnut 44 a als rechtwinkeli ges Feld dargestellt, dies für einen streifenartigen Klam merhals 32 a nach Fig. 6, der von der in Gleitrichtung x vorderen Schmalkante 29 ausgeht. Die Kontur einer dem zu Fig. 2, 3 beschriebenen - sich klammerwärts verjüngenden - Klammerhals 32 entsprechenden Pultnut ist bei 44 gestri chelt angedeutet.In Fig. 4, the contour of the console groove 44 a is shown as a rectangular field, this for a strip-like clamp neck 32 a according to FIG. 6, which starts from the narrow edge 29 in the sliding direction x. The contour of a the process described for Figures 2, 3 - to clamp Windwärts tapered -. Clip corresponding neck 32 Pultnut is indicated at 44 gestri smiles.
Der auf die Werkzeugoberfläche 38 aufgelegte Materialstrei fen 22 wird in Gleitrichtung x - also gegen die Öffnungs richtung z des Klammermauls 19 (Fig. 2) - über das Werk zeug 40 gezogen, wobei die Klammer 14 gemäß Fig. 5, 6 in eine Applikationsstellung gebracht wird, in der sie in je nem Neigungswinkel y von hier etwa 45° steht und von der Kopffläche 42 abragt. Zur Positionierung der Klammer 14 hilft ein ihre Bewegungsbahn kreuzender Draht 47 oder ein ähnliches Anschlagelement. The placed on the tool surface 38 Materialstrei fen 22 is in the sliding direction x - ie against the opening direction z of the jaw 19 ( FIG. 2) - pulled over the tool 40 , the bracket 14 shown in FIG. 5, 6 brought into an application position is in which it stands at an angle of inclination y of about 45 ° from each and protrudes from the head surface 42 . A wire 47 or a similar stop element crossing its path of movement helps to position the clamp 14 .
Die Klammer 14 kann nun in der in Fig. 5, 6 dargestellten Lage appliziert werden; bei Weiterführung des filmartigen Materialstreifens 22 in Gleitrichtung wird die - sich mit ihrem Klammerjoch 16 beidseits der Pultnut 44, 44 a bei 48 abstützende - Klammer 14 im Bereich des Überganges 34 und gegebenenfalls an diesem vorgesehener Kerben 35 (Fig. 2) verformt; die Klammerarme 18 führen ihre Greifenden 20 auf einander zu. Bei weiter ansteigendem Zug - also zunehmen dem Druck an der Klammer 14 - wird die Zugfestigkeit des Werkstoffes an den Kerben 25 überschritten, und die Klammer 14 wird am Übergang 34 abgetrennt - die vorgängig in Klammerstellung festgelegte Klammer 14 bleibt am entspre chenden Gefäßabschnitt 10, 10 a od. dgl. Teil haften.The clip 14 can now be applied in the position shown in FIGS. 5, 6; when the film-like material strip 22 is continued in the sliding direction, the clamp 14 , which is supported with its clamp yoke 16 on both sides of the console groove 44 , 44 a at 48, is deformed in the region of the transition 34 and, if appropriate, notches 35 provided thereon ( FIG. 2); the clamp arms 18 lead their gripping ends 20 towards one another. As the tension increases further - that is, the pressure on the clamp 14 increases - the tensile strength of the material at the notches 25 is exceeded, and the clamp 14 is separated at the transition 34 - the clamp 14 previously defined in the clamp position remains on the corresponding vessel section 10 , 10 a or the like part stick.
In Fig. 6 ist ein leeres Fenster 24 a nach dem Entfernen der Klammer 14 dargestellt mit einer am Übergang 34 des Klam merhalses 32 a verbleibenden Risslinie 36.In Fig. 6, an empty window 24 a is shown after removal of the clip 14 with a crack line 36 remaining at the transition 34 of the clip neck 32 a .
Bei der Ausgestaltung nach Fig. 7, 8 sind an dem den - die Klammer 14 enthaltenden - filmartigen Werkstoffstreifen 22 in Seitennuten 41 führenden Werkzeug 40 a aus Formblech 50 aus der Werkzeugoberfläche 38 vier Begrenzungsanschläge 52 herausgeformt. Letztere bestimmen eine die Pultnut 44 b querende Bewegungsbahn für die von ihnen geführte Klammer 14; hier ist die Pultnut 44 b Teil einer Einlauföffnung 54 des Formbleches 50. . In the embodiment according to Figures 7, 8 are attached to the the - shape of sheet metal 50 formed out 38 four limit stops 52 from the tool surface film-like material strip 22 in side grooves 41 leading tool 40 a - the clamp 14 containing. The latter determine a path of movement crossing the desk groove 44 b for the clip 14 guided by them; here the console groove 44 b is part of an inlet opening 54 of the shaped plate 50 .
Claims (25)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19859952A DE19859952A1 (en) | 1998-08-11 | 1998-12-28 | Micro-surgical clamps are produced from a flat strip of metal remaining attached within a recess in the strip |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19836212 | 1998-08-11 | ||
DE19859952A DE19859952A1 (en) | 1998-08-11 | 1998-12-28 | Micro-surgical clamps are produced from a flat strip of metal remaining attached within a recess in the strip |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19859952A1 true DE19859952A1 (en) | 2000-02-17 |
Family
ID=7877091
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19859952A Withdrawn DE19859952A1 (en) | 1998-08-11 | 1998-12-28 | Micro-surgical clamps are produced from a flat strip of metal remaining attached within a recess in the strip |
DE19859950A Expired - Fee Related DE19859950C2 (en) | 1998-08-11 | 1998-12-28 | Surgical clip and device for applying it |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19859950A Expired - Fee Related DE19859950C2 (en) | 1998-08-11 | 1998-12-28 | Surgical clip and device for applying it |
Country Status (1)
Country | Link |
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DE (2) | DE19859952A1 (en) |
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US8667856B2 (en) | 2011-05-20 | 2014-03-11 | General Electric Company | Sensor assemblies and methods of assembling same |
US9332976B2 (en) | 2011-11-30 | 2016-05-10 | Abbott Cardiovascular Systems, Inc. | Tissue closure device |
US10537312B2 (en) | 2012-12-21 | 2020-01-21 | Abbott Cardiovascular Systems, Inc. | Articulating suturing device |
US11672518B2 (en) | 2012-12-21 | 2023-06-13 | Abbott Cardiovascular Systems, Inc. | Articulating suturing device |
US9364209B2 (en) | 2012-12-21 | 2016-06-14 | Abbott Cardiovascular Systems, Inc. | Articulating suturing device |
Also Published As
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DE19859950A1 (en) | 2000-03-02 |
DE19859950C2 (en) | 2003-08-21 |
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