DE4220283A1 - Surgical needle with suturing thread at end - at which is coupler of releasable plug connection, whose counterpart is fixed to thread start - Google Patents
Surgical needle with suturing thread at end - at which is coupler of releasable plug connection, whose counterpart is fixed to thread startInfo
- Publication number
- DE4220283A1 DE4220283A1 DE19924220283 DE4220283A DE4220283A1 DE 4220283 A1 DE4220283 A1 DE 4220283A1 DE 19924220283 DE19924220283 DE 19924220283 DE 4220283 A DE4220283 A DE 4220283A DE 4220283 A1 DE4220283 A1 DE 4220283A1
- Authority
- DE
- Germany
- Prior art keywords
- needle
- thread
- counterpart
- surgical needle
- surgical
- 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
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/06—Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
- A61B17/06004—Means for attaching suture to needle
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/06—Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
- A61B17/06066—Needles, e.g. needle tip configurations
Abstract
Description
Die Erfindung betrifft eine chirurgische Nadel mit am Nadelende befestigtem Faden und einer dem jeweiligen Verwendungszweck angepaßten Form des zwischen Nadelspitze und Nadelende ver laufenden Nadelschaftes.The invention relates to a surgical needle at the end of the needle attached thread and a respective purpose adapted shape of the ver between needle tip and needle end running needle shaft.
Derartige öhrlose Nadeln, die auch als atraumatische Nadeln be zeichnet werden, sind bekannt, beispielsweise aus der US-PS 4 976 727. Ihr wesentlicher Vorteil liegt darin, daß der Stich kanal zum Einbringen des Fadens in das Gewebe nur geringfügig stärker ist als der Fadendurchmesser, wogegen bei mit einem Nadelöhr zum Einfädeln des Fadens versehenen chirurgischen Nadeln die doppelte Fadenstärke in Verbindung mit der im Ver gleich zum Nadelschaft aufgeweiteten Öhrpartie den Stichkanal stark aufweitet. Grundsätzlich ist eine Aufweitung des Stichkanals auf das Maß des Fadendurchmessers wünschenswert, um das Gewebe beim Durchstechen nur minimal zu schädigen und durch den eingebrachten Faden eventuelle Blutungen zu stillen; die mit Öhrnadeln zwangsläufig verbundene starke Aufweitung des Stich kanals ist aber unerwünscht.Such eyeless needles, which can also be used as atraumatic needles are known, for example from US Pat. No. 4,976,727. Their main advantage is that the stitch channel for introducing the thread into the tissue only slightly is stronger than the thread diameter, whereas with one Needle eye for threading the surgical thread Needles twice the thread size in connection with the in the ver the puncture canal, just like the needle shaft greatly expanded. Basically, an expansion of the Stitch channel to the dimension of the thread diameter desirable to minimal damage to the tissue when piercing and through stop the bleeding if there is any bleeding; with Eye needles inevitably linked strong widening of the stitch channel is undesirable.
Um bei öhrlosen Nadeln den Fadenanfang am Nadelende befestigen zu können, wird üblicherweise am Nadelende eine axiale Bohrung angebracht, in die der Faden eingeführt und anschließend durch Zusammenquetschen des gebohrten Nadelendes mittels Klemmung festgehalten wird. To attach the beginning of the thread to the end of the needle for eyeless needles To be able to, is usually an axial bore at the needle end attached, into which the thread is inserted and then through Pinch the drilled needle end together is held.
Die vorher zugeschnittene Fadenlänge richtet sich hierbei nach den Anforderungen an die jeweilige Nadel-Faden-Kombination. Nach Beendigung der chirurgischen Operation und Legung der Naht werden Nadel und Faden entweder durch Abschneiden oder Ausüben einer axialen Zugkraft voneinander getrennt, welche die Klemmkraft zwischen dem Nadelende und dem Fadenanfang übersteigt. Abschließend werden die Fadenenden miteinander verknotet.The thread length previously cut depends on this the requirements for the respective needle-thread combination. To Completion of the surgical operation and laying of the suture become needle and thread either by cutting or exercising an axial pulling force which separates the Clamping force between the end of the needle and the beginning of the thread exceeds. Finally, the thread ends together knotted.
Während die mit einem Nadelöhr versehenen chirurgischen Nadeln mehrfach verwendet werden können, ist eine öhrlose chirurgische Nadel normalerweise nur für eine einzige Nahtlegung geeignet. Für spezielle Operationen, primär im Bereich der Gefäßchirurgie, ergibt sich hieraus ein Nachteil. Bei sklerosen Gefäßoperationen mit bis zu 30 Stichen ist vor allem die Nadelspitze wegen der notwendigen Durchdringung kalkhaltiger Ablagerungen innerhalb der Gefäße nach einigen wenigen Einstichen nicht mehr voll funktionsfähig. Die äußerste Nadelspitze verrundet, und dies be deutet für den Operateur einen höheren Kraftaufwand für die nachfolgenden Stiche. Dieser erhöhte Kraftaufwand kann wiederum zu einer Verbiegung der Nadel oder sogar zum Nadelbruch führen. Zusätzlich ergibt die nach jedem einzelnen Stich notwendige er neute Klemmung der Nadel im Nadelhalter eine Oberflächenbe schädigung des Nadelschaftes und damit eine zusätzliche Schädigung der Stichlochränder bei nochmaliger Erhöhung der notwendigen Einstichkraft.While the surgical needles provided with a needle eye Can be used multiple times is a deaf surgical Needles are usually only suitable for a single seam. For special operations, primarily in the field of vascular surgery, this results in a disadvantage. In sclerotic vascular surgery with up to 30 stitches, the needle point is mainly because of the necessary penetration of calcareous deposits within the vessels are no longer full after a few punctures functioning. The outer tip of the needle is rounded, and this be indicates a higher effort for the surgeon subsequent stitches. This increased effort can in turn cause the needle to bend or even break. In addition, he gives the necessary after every single stitch again clamp the needle in the needle holder damage to the needle shaft and thus an additional Damage to the tap hole edges when the necessary puncture force.
Aus diesem Grunde wäre insbesondere für die voranstehend be schriebene Operationstechnik die Möglichkeit eines Nadelwechsels nach einigen Stichen wünschenswert, wobei der Faden nicht gewechselt werden muß. Ein derartiger Nadelwechsel ist zwar grundsätzlich durch die Verwendung von Öhrnadeln möglich. Da diese jedoch die Forderung nach minimalen Stichlöchern nicht er füllen, sind sie für derartige Einsatzbereiche ungeeignet.For this reason, be especially for the above wrote surgical technique the possibility of a needle change after a few stitches desirable, the thread is not must be changed. Such a needle change is indeed basically possible through the use of eye needles. There however, this did not meet the requirement for minimal stitch holes fill, they are unsuitable for such applications.
Der Erfindung liegt die Aufgabe zugrunde, eine chirurgische Nadel der eingangs beschriebenen Art derart weiter zubilden, daß bei einem bereits mit einigen Einstichen mit dem Gewebe bzw. der Gefäßwand verbundenen Faden ein Wechsel der Nadel möglich ist.The invention has for its object a surgical needle of the type described in the beginning to form that with a few punctures with the Tissue or the vascular wall connected a change of Needle is possible.
Die Lösung dieser Aufgabenstellung durch die Erfindung ist dadurch gekennzeichnet, daß am Nadelende ein Kupplungsstück einer lösbaren Steckverbindung angeordnet ist, deren Gegenstück mit dem Fadenanfang fest verbunden ist.The solution to this problem by the invention is characterized in that a coupling piece at the needle end a detachable connector is arranged, the counterpart is firmly connected to the beginning of the thread.
Durch die erfindungsgemäße Verwendung einer lösbaren Steckver bindung zwischen Nadelende und Fadenanfang wird die Möglichkeit geschaffen, eine stumpfgewordene oder beschädigte Nadel auf ein fache Weise von einem bereits mit einigen Einstichen vernähten Faden zu lösen, der nach Ansetzen einer neuen Nadel problemlos weitervernäht werden kann. Ein weiterer Vorteil der erfindungs gemäßen Steckverbindung besteht in der Möglichkeit einer ver ringerten Vorratshaltung, da mit der lösbaren Steckverbindung jeweils gewünschte Nadel-Faden-Kombinationen in jeder Klinik selbst hergestellt werden können, so daß die Chirurgen die für den jeweiligen Eingriff jeweils beste Nadel-Faden-Kombination zur Verfügung gestellt bekommen können. Ein weiterer Vorteil der erfindungsgemäßen Weiterbildung ist schließlich darin zu sehen, daß sich durch eine spezielle Gestaltung des Gegenstückes der Fadenanfang erheblich einfacher und mit besser kontrollierbarer Haltekraft an dem vom Nadelende lösbaren Gegenstück der Steck verbindung befestigen läßt, womit aufwendige Verfahren zu Ver bindung zwischen Nadel und Fadenanfang vermieden werden, die trotz eines hohen technischen Aufwandes häufig nicht die volle Funktion gewährleisten.The inventive use of a detachable plug-in The possibility between the end of the needle and the beginning of the thread becomes possible created a blunt or damaged needle on one multiple times from one that has already been sewn with a few punctures Loosen thread that is easy after attaching a new needle can be sewn on. Another advantage of the invention According plug connection is the possibility of a ver reduced stockpiling as with the detachable connector desired needle-thread combinations in each clinic can be manufactured by the surgeon themselves the best possible needle-thread combination can be made available. Another advantage of Finally, further training according to the invention is to be seen in that by a special design of the counterpart of Thread start considerably easier and with more controllable Holding force on the removable counterpart of the plug Connection can be fastened, whereby complex procedures to Ver binding between the needle and the beginning of the thread can be avoided often not the full one despite a high technical effort Ensure function.
Gemäß einem weiteren Merkmal der Erfindung kann das Gegenstück hülsenartig mit einer axialen Aufnahmeöffnung für den Fadenan fang ausgebildet sein. Da derartige Gegenstücke separat von der eigentlichen Nadel hergestellt werden, vereinfacht sich der technische Aufwand für die Verbindung des Fadenanfanges mit der Nadel bzw. dem Gegenstück, wobei gleichzeitig jegliche Gefahr einer Beschädigung der eigentlichen Nadel ausgeschlossen wird.According to a further feature of the invention, the counterpart sleeve-like with an axial receiving opening for the thread be trained. Since such counterparts are separate from the actual needle are made, the simplified technical effort for the connection of the beginning of the thread with the Needle or the counterpart, at the same time any danger damage to the actual needle is excluded.
Erfindungsgemäß ist die Steckverbindung als eine bis zum Über schreiten einer vorgebbaren Axialkraft formschlüssige Kupplung ausgebildet, wodurch sich die Handhabung der erfindungsgemäßen chirurgischen Nadel erheblich vereinfacht, weil durch Aufbringen einer bestimmten Axialkraft die Nadel sehr einfach vom Fadenan fang getrennt werden kann.According to the invention, the plug connection is one to the over engaging a definable axial force positive coupling trained, whereby the handling of the invention surgical needle considerably simplified because of application a certain axial force the needle very easily from the thread can be separated.
Bei einer bevorzugten Ausführungsform der Erfindung ist das am Nadelende angeordnete Kupplungsstück mit einem endseitigen Einführkonus und einer sich anschließenden nutenartigen Hinter schneidung und das Gegenstück mit einem dem Querschnitt der Hinterschneidung entsprechenden Kupplungsring ausgeführt. Diese einfache und leicht herstellbare Konstruktion kann gemäß einem weiteren Merkmal der Erfindung dadurch verbessert werden, daß der Kupplungsring am vorderen Ende des hülsenartigen Gegen stückes ausgebildet wird.In a preferred embodiment of the invention, this is the Coupling piece arranged at the needle end with an end Insertion cone and a subsequent groove-like rear cut and the counterpart with a cross section of the Undercut corresponding coupling ring executed. These simple and easy to manufacture construction according to one further feature of the invention can be improved in that the coupling ring at the front end of the sleeve-like counter piece is formed.
Um beim Zusammenstecken bzw. Auseinanderziehen der lösbaren Steckverbindung gemäß der Erfindung die notwendigen Federkräfte zu schaffen, kann entweder der Einführkonus am Kupplungsstück des Nadelendes oder der Kupplungsring am Gegenstück durch mindestens einen axial verlaufenden Schlitz federnd ausgeführt sein.In order to plug or pull apart the detachable Plug connection according to the invention the necessary spring forces to create, either the insertion cone on the coupling piece of the needle end or the coupling ring on the counterpart at least one axially extending slot is resilient be.
Eine besonders einfache Gestaltung der Steckverbindung ergibt sich, wenn erfindungsgemäß das Kupplungsstück einstückig am Nadelende ausgebildet wird. A particularly simple design of the plug connection results itself when the coupling piece according to the invention in one piece Needle end is formed.
Schließlich wird mit der Erfindung vorgeschlagen, den Fadenan fang entweder durch Zusammendrücken der hülsenartigen Aufnahmeöffnung oder mittels eines Klebers mit dem Gegenstück fest zu verbinden.Finally, the thread is proposed with the invention catch either by squeezing the sleeve-like Opening opening or by means of an adhesive with the counterpart to connect firmly.
Auf der Zeichnung ist ein Ausführungsbeispiel der erfindungsge mäßen chirurgischen Nadel dargestellt und zwar zeigen:In the drawing is an embodiment of the fiction represented by a surgical needle, showing:
Fig. 1 eine Seitenansicht einer erfindungsgemäßen Nadel vor dem Zusammenführen der beiden Teile der lösbaren Steckverbindung, Fig. 1 is a side view of a needle according to the invention prior to the merging of the two parts of the detachable plug-in connection,
Fig. 2 eine der Fig. 1 entsprechende Darstellung nach Her stellen der Steckverbindung, Fig. 2 shows one of Fig. 1 representation corresponding to HER provide the plug connection,
Fig. 3 eine Seitenansicht des mit dem Kupplungsstück versehenen Nadelendes und einen Längsschnitt durch das mit dem Fadenanfang versehene Gegenstück bei einer bevorzugten Ausführungsform der Steckverbindung und Fig. 3 is a side view of the needle end provided with the coupling piece and a longitudinal section through the counterpart provided with the thread start in a preferred embodiment of the connector and
Fig. 4 eine Stirnansicht des in Fig. 3 gezeichneten Gegen stückes. Fig. 4 is an end view of the counter piece drawn in Fig. 3.
Die in den Fig. 1 und 2 jeweils in der Seitenansicht darge stellte chirurgische Nadel 1 wird mit einer dem jeweiligen Ver wendungszweck angepaßten Form des zwischen der Nadelspitze 2 und dem Nadelende 3 verlaufenden Nadelschaftes 4 ausgeführt. Beim Ausführungsbeispiel ist der Nadelschaft 4 gekrümmt.The surgical needle presented in Figs. 1 and 2 each in the side view Darge 1 is executed each Ver with an intended use of the matched shape of the needle tip between 2 and extending the needle end 3 needle shaft 4. In the exemplary embodiment, the needle shaft 4 is curved.
Das Nadelende 3 wird mit dem Fadenanfang 8 durch eine lösbare Steckverbindung verbunden, die ein am Nadelende 3 angeordnetes Kupplungsstück 5 sowie ein mit dem Fadenanfang 8 fest ver bundenes Gegenstück 6 umfaßt. Ein Ausführungsbeispiel dieser Steckverbindung ist vergrößert in den Fig. 3 und 4 dargestellt. The needle end 3 is connected to the beginning of the thread 8 by a releasable plug-in connection which comprises a coupling piece 5 arranged at the needle end 3 and a counterpart 6 firmly connected to the beginning of the thread 8 . An embodiment of this connector is shown enlarged in FIGS. 3 and 4.
Die Fig. 3 zeigt, daß bei diesem Ausführungsbeispiel das Kupplungsstück 5 einstückig am Nadelende 3 ausgebildet ist. Das Kupplungsstück 5 umfaßt beim Ausführungsbeispiel einen end seitigen Einführkonus 5a und eine sich anschließende nutenartige Hinterschneidung 5b. Das Gegenstück 6 ist hülsenartig mit einer auf den Durchmesser des Fadenanfangs 8 abgestimmten Aufnahmeöffnung 6a ausgebildet. Am vorderen Ende bildet das Gegenstück 6 einen dem Querschnitt der Hinterschneidung 5b entsprechenden Kupplungsring 6b. Um die notwendigen Federeigenschaften der Steckverbindung zu erzielen, ist beim Ausführungsbeispiel der Kupplungsring 6b durch axial verlaufende Schlitze 7 federnd aus gebildet. Selbstverständlich ist es zur Erzielung der not wendigen Federeigenschaften der Steckverbindung auch möglich, das Kupplungsstück 5 mit mindestens einem derartigen Schlitz 7 zu versehen. Fig. 3 shows that in this embodiment, the coupling piece 5 is integrally formed on the needle end 3 . The coupling piece 5 comprises in the embodiment an end-side insertion cone 5 a and a subsequent groove-like undercut 5 b. The counterpart 6 is sleeve-shaped with a receiving opening 6 a which is matched to the diameter of the thread start 8 . At the front end, the counterpart 6 forms a coupling ring 6 b corresponding to the cross section of the undercut 5 b. To achieve the necessary spring properties of the plug connection, the coupling ring 6 b is formed by axially extending slots 7 in the embodiment of the spring. Of course, to achieve the nimble spring properties of the plug connection, it is also possible to provide the coupling piece 5 with at least one such slot 7 .
Beim Zusammenfügen von Nadel 1 und Fadenanfang 8 wird der vordere Teil des Gegenstückes 6 beim axialen Aufschieben auf den Einführkonus 5a des Kupplungsstückes 5 aufgrund seiner durch die Schlitze 7 erfolgten Aufteilung in Segmente zunächst elastisch federnd aufgeweitet. Sobald jedoch der Kupplungsring 6b in den Bereich der Hinterschneidung 5b des Kupplungsstückes 5 gelangt, federn die Segmente des Kupplungsringes 6b in ihrer Ausgangslage zurück und schaffen eine Art formschlüssige Verbindung zwischen Kupplungsstück 5 und Gegenstück 6, d. h. zwischen der Nadel 1 und dem am Gegenstück 6 befestigten Fadenanfang 8. Die Befestigung des Fadenanfanges 8 erfolgt vorzugsweise durch Zusammendrücken des hinteren Endes des hülsenartigen Gegenstückes 6.When joining together needle thread 1 and the top 8 of the front part of the mating piece 6 during the axial pushing onto the insertion cone 5 a of the coupling member 5 due to its carried out through the slots 7 division into segments is first widened elastically resilient. However, as soon as the coupling ring 6 b comes into the region of the undercut 5 b of the coupling piece 5 , the segments of the coupling ring 6 b spring back in their starting position and create a kind of positive connection between coupling piece 5 and counterpart 6 , ie between the needle 1 and the Counterpart 6 attached thread beginning 8 . The thread beginning 8 is preferably fastened by compressing the rear end of the sleeve-like counterpart 6 .
Die formschlüssige Verbindung zwischen Kupplungsstück 5 und Gegenstück 6 kann jedoch aufgehoben werden, wenn eine vor gegebene Axialkraft durch Auseinanderziehen von Nadel 1 und Fadenanfang 8 überschritten wird. In diesem Fall treten die Seg mente des Kupplungsringes 6b aus der Hinterschneidung 5b des Kupplungsstückes 5 aus, so daß die Nadel 1 vom Fadenanfang 8 ab genommen werden kann. Es ist somit auf einfache Weise möglich, eine verschlissene Nadel während der Operation gegen eine neue Nadel auszutauschen und mit einem bereits teilweise für die Nahtlegung verwendeten Faden die Operation fortzusetzen.The positive connection between coupling piece 5 and counterpart 6 can, however, be canceled if a given axial force is exceeded by pulling needle 1 and thread beginning 8 apart. In this case, the seg ments of the coupling ring 6 b from the undercut 5 b of the coupling piece 5 , so that the needle 1 can be taken from the beginning of the thread 8 . It is thus possible in a simple manner to exchange a worn needle for a new needle during the operation and to continue the operation with a thread already partially used for the suturing.
BezugszeichenlisteReference list
1 Nadel
2 Nadelspitze
3 Nadelende
4 Nadelschaft
5 Kupplungsstück
5a Einführkonus
5b Hinterschneidung
6 Gegenstück
6a Aufnahmeöffnung
6b Kupplungsring
7 Schlitz
8 Fadenanfang 1 needle
2 needle tip
3 needle end
4 needle shaft
5 coupling piece
5 a insertion cone
5 b undercut
6 counterpart
6 a receiving opening
6 b coupling ring
7 slot
8 thread start
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19924220283 DE4220283C2 (en) | 1992-06-20 | 1992-06-20 | Surgical needle-thread combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19924220283 DE4220283C2 (en) | 1992-06-20 | 1992-06-20 | Surgical needle-thread combination |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE4220283A1 true DE4220283A1 (en) | 1993-12-23 |
| DE4220283C2 DE4220283C2 (en) | 1994-05-19 |
Family
ID=6461486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19924220283 Expired - Fee Related DE4220283C2 (en) | 1992-06-20 | 1992-06-20 | Surgical needle-thread combination |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE4220283C2 (en) |
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| US10463353B2 (en) | 2010-09-01 | 2019-11-05 | Abbott Cardiovascular Systems, Inc. | Suturing devices and methods |
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| US11154293B2 (en) | 2012-04-10 | 2021-10-26 | Abbott Cardiovascular Systems, Inc. | Apparatus and method for suturing body lumens |
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