DE19645183A1 - Needle for myocardial puncture - Google Patents

Needle for myocardial puncture

Info

Publication number
DE19645183A1
DE19645183A1 DE1996145183 DE19645183A DE19645183A1 DE 19645183 A1 DE19645183 A1 DE 19645183A1 DE 1996145183 DE1996145183 DE 1996145183 DE 19645183 A DE19645183 A DE 19645183A DE 19645183 A1 DE19645183 A1 DE 19645183A1
Authority
DE
Germany
Prior art keywords
needle
stent
opening
puncture
endocardium
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.)
Withdrawn
Application number
DE1996145183
Other languages
German (de)
Inventor
Georg Dr Med Kletke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE1996145183 priority Critical patent/DE19645183A1/en
Publication of DE19645183A1 publication Critical patent/DE19645183A1/en
Withdrawn legal-status Critical Current

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
    • A61B17/06066—Needles, e.g. needle tip configurations
    • 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
    • A61B17/0469—Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00238—Type of minimally invasive operation
    • A61B2017/00243—Type of minimally invasive operation cardiac
    • A61B2017/00247—Making holes in the wall of the heart, e.g. laser Myocardial revascularization
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
    • 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
    • A61B2017/06052—Needle-suture combinations in which a suture is extending inside a hollow tubular needle, e.g. over the entire length of the needle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00345—Vascular system
    • A61B2018/00351—Heart
    • A61B2018/00392—Transmyocardial revascularisation

Abstract

The needle (10) has a cannula (14) which holds a stent and which has a side opening (12) so that part of the stent is outside the needle and is joined to the rest of the stent inside the needle. The opening is behind the needle point (16) bending in a spoon shape towards the opening. A handle conveys further stent material with successive multiple puncturing of the myocardium for applying a loop reaching as far as the endocardium.

Description

Die Erfindung betrifft eine Nadel zur Miokardpunktion.The invention relates to a needle for miocardial puncture.

Es ist bereits gezeigt worden, daß die Anlage von Mio­ kardpunktionskänalen zur Miokardrevaskularisation führt. Bisher wurden derartige Punktionskanäle mit La­ sern hergestellt, wobei davon ausgegangen wird, daß das durch einen Laserimpuls verbrannte Gewebe zur Revasku­ larisation des Miokards inbesondere von menschlichem Herzen führt. It has already been shown that the plant of millions Cardiac puncture channels for miocard revascularization leads. So far, such puncture channels with La sern manufactured, it being assumed that the tissue burned by a laser pulse to the Revasku larization of the miocard, especially of human Heart leads.  

Der Erfindung liegt jedoch ein anderes Verfahren zu­ grunde, bei dem durch die Einlagerung von resorbierba­ ren Stenten, einem Nahtmaterial, der Punktionskanal für wesentlich längere Zeit vor einem direkten Verheilen geschützt wird. Dies trägt vorteilhafterweise zur Mio­ kardrevaskularisation bei.However, the invention is based on a different method reasons in which through the storage of resorbierba ren stent, a suture, the puncture channel for much longer before direct healing is protected. This advantageously contributes to the million cardiovascularization at.

Das Verlegen dieser Stente wird erfindungsgemäß mit ei­ ner Nadel durchgeführt, die jeweils außen einen ersten, gegebenenfalls schon am Miokard angenähten Stent führt. Weiteres Stentmaterial befindet sich in der Nadel. Nach einer erfolgten Punktion, die bis zu dem Punkt durchge­ führt wird, an dem das Endokard durchstoßen wird und sich ein Bluttropfen am anderen Ende der Nadel bildet, wird die Nadel zurückgezogen, wobei der Stent durch die Retentionskräfte des Miokards schlaufenartig an seinem Ort gehalten wird.The laying of these stents is according to the invention with egg ner needle performed, the first outside, possibly leads to a stent already attached to the miocard. Additional stent material is in the needle. After a puncture that has been carried out to the point at which the endocardium is pierced and a drop of blood forms on the other end of the needle, the needle is withdrawn, with the stent passing through the Retention forces of the miocard loop-like on his Place is held.

Durch Herausziehen von Stent aus der Nadel für wenig­ stens die Dicke des Miokards steht genügend Stentmate­ rial für einen weiteren Punktionsstich zur Verfügung, wonach wieder die Nadel zurückgezogen wird und so wei­ ter, wie in der Fig. 1 erläutert.By pulling the stent out of the needle for at least the thickness of the miocard, enough stent material is available for a further puncture stitch, after which the needle is withdrawn again and so forth, as explained in FIG. 1.

Vorteilhafterweise wird dabei die löffelförmige Spitze der Nadel keinerlei Miokardmaterial in die Nadel ein­ treten lassen und andererseits eine abgerundete rück­ seitige Kante der seitlichen Öffnung das Stentmaterial beim Einstich schonend führen.Advantageously, the spoon-shaped tip do not insert any miocardial material into the needle let it kick and on the other hand a rounded back side edge of the side opening the stent material guide gently during puncture.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus nachfolgender Beschreibung eines bevorzugten Ausführungsbeispiels. Dabei zeigt: Further features and advantages of the invention result derive from the following description of a preferred Embodiment. It shows:  

Fig. 1 die erfindungsgemäße Nadel als Kanüle mit löffelförmiger Spitze, Fig. 1, the needle cannula according to the invention than with spoon-shaped tip

Fig. 2 eine Detaildarstellung der hinten abgerun­ deten Öffnung im Längsschnitt, und Fig. 2 is a detailed view of the rear rounded opening in longitudinal section, and

Fig. 3 eine erläuterte Darstellung zum Verlegen der Stente in den Punktionskanälen mit Hil­ fe der erfindungsgemäßen Nadel. Fig. 3 is an illustrated illustration for laying the stent in the puncture channels with Hil fe of the needle according to the invention.

Die in der Fig. 1 dargestellte Nadel weist eine Kanüle 14 auf, die mit einer Spitze 16 versehen ist, wie sie beispielsweise durch Umbiegen einer Nadel und anschlie­ ßendes Abfeilen erzeugbar ist. Dabei ergibt sich eine löffelförmig zur Öffnung hin sich biegende Spitze 16. Wichtig ist, daß eine rückseitige Kante 18 der Öffnung 12 abgerundet ist, wie dies in der Fig. 2 deutlicher dargestellt wird, und die Spitze gegen Eintritt von Ge­ webe von vorn verschlossen ist.The needle shown in Fig. 1 has a cannula 14 which is provided with a tip 16 , such as can be generated for example by bending a needle and then filing. This results in a spoon 16 which bends in a spoon shape toward the opening. It is important that a rear edge 18 of the opening 12 is rounded, as is shown more clearly in FIG. 2, and the tip is closed from the front against entry of tissue.

Die Kanüle ist mit einem üblichen Aufsatz für beispiels­ weise Spritzen versehen, so daß ein kurzen 10 cm oder längeres 30-40 cm langes Griffstück entsprechend her­ kömmlicher Spritzen hohl zur Durchführung des Stentfa­ dens gefertigt in dieses Teil 20 eingesteckt werden kann.The cannula is provided with a conventional attachment for example as syringes, so that a short 10 cm or longer 30-40 cm long handle can be inserted into this part 20 in accordance with conventional syringes made to carry out the stenting.

In der Fig. 3 schließlich ist das Miokard 22 des Herzens dargestellt, auf dem der Stent 24 in einem Ort 26 am An­ fang befestigt ist. In den Punktionskanälen 28 ist nun­ mehr jeweils eine Schlaufe des Stentes 24 durch die Na­ del eingesteckt. Dabei wird bis zu einer Punktion des Endokards 30 jeweils die Nadel eingestochen. Das Endo­ kard selber wird jedoch nur geringfügig punktiert.In Fig. 3, finally, the miokard 22 of the heart is shown, on which the stent 24 is attached in a place 26 at the beginning. In the puncture channels 28 a loop of the stent 24 is now inserted through the Na del. The needle is inserted in each case until the endocardium 30 is punctured. However, the endo card itself is only slightly punctured.

In der im rechten Bildteil schematisch dargestellten Na­ del 10 ist er im Inneren geführte Stent durchbrochen ab­ gebildet. Er wird durch einem Griffstück 32 hinten her­ aus geführt.In the Na del 10, which is shown schematically in the right-hand part of the figure, the stent which is guided inside is broken open. It is guided out from behind by a handle 32 .

Die Nadel hat einen Durchmesser von vorzugsweise ca. 0,5 bis 0,9 mm und eine Länge von vorzugsweise 1,5 bis 2,0 cm. Man kann die Nadel bei offenen oder endoskopi­ schen Operationen verwenden.The needle has a diameter of preferably approximately 0.5 to 0.9 mm and a length of preferably 1.5 to 2.0 cm. You can open the needle or endoscopically use operations.

Claims (4)

1. Nadel zur Miokardpunktion, gekennzeichnet durch eine einen Stent (24) aufnehmende Hohlkanüle (14) mit einer seitlichen Öffnung (12), durch die ein außerhalb der Nadel (10) befindlicher Teil des Stents (24) mit dem innerhalb der Nadel (10) vorgesehenen übrigen Stent verbunden ist.1. needle for miocardial puncture, characterized by a stent ( 24 ) receiving hollow cannula ( 14 ) with a lateral opening ( 12 ) through which a part of the stent ( 24 ) located outside the needle ( 10 ) with the inside of the needle ( 10 ) provided remaining stent is connected. 2. Nadel nach Anspruch 1, dadurch gekennzeichnet, daß die Öffnung (12) hinter einer löffelförmig zur Öff­ nung hin sich biegenden Spitze (16) der Nadel vorgese­ hen ist.2. Needle according to claim 1, characterized in that the opening ( 12 ) is hen behind a spoon-shaped opening bent towards opening ( 16 ) of the needle. 3. Nadel nach einem der vorangehenden Ansprüche, ge­ kennzeichnet durch eine in Einstichrichtung rückseitig abgerundete Kante der Öffnung (12).3. Needle according to one of the preceding claims, characterized by an edge of the opening ( 12 ) rounded on the back in the puncturing direction. 4. Nadel nach einem der vorangehenden Ansprüche, ge­ kennzeichnet durch einen Griff zur Zuführung weiteren Stentmaterials bei nachfolgender mehrfacher Punktion des Miokards zur jeweiligen Einbringung einer Schlaufe, die bis zum Endokard reicht.4. Needle according to one of the preceding claims, ge characterized by a handle for feeding further Stent material with subsequent multiple puncture the Miokard for the insertion of a loop, that extends to the endocardium.
DE1996145183 1996-11-02 1996-11-02 Needle for myocardial puncture Withdrawn DE19645183A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1996145183 DE19645183A1 (en) 1996-11-02 1996-11-02 Needle for myocardial puncture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1996145183 DE19645183A1 (en) 1996-11-02 1996-11-02 Needle for myocardial puncture

Publications (1)

Publication Number Publication Date
DE19645183A1 true DE19645183A1 (en) 1998-05-14

Family

ID=7810461

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1996145183 Withdrawn DE19645183A1 (en) 1996-11-02 1996-11-02 Needle for myocardial puncture

Country Status (1)

Country Link
DE (1) DE19645183A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5980548A (en) * 1997-10-29 1999-11-09 Kensey Nash Corporation Transmyocardial revascularization system
EP1093758A1 (en) * 1999-10-22 2001-04-25 Kaladelfos, George Suture insertion device for the treatment of urinary stress incontinence
WO2001034239A3 (en) * 1999-11-09 2001-12-27 Ronald K Grooters Improved aortic cannula with spoon-shaped lip
DE102009035553A1 (en) * 2009-07-31 2011-02-10 LMU Ludwig-Maximilians-Universität München Surgical insertion instrument for threading suture into hollow needle of commercial cannula to refix injured connective tissues, has adapter tapering cavity end of funnel, so that end is turned to proximal end of cannula

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5980548A (en) * 1997-10-29 1999-11-09 Kensey Nash Corporation Transmyocardial revascularization system
US6203556B1 (en) 1997-10-29 2001-03-20 Kensey Nash Corporation Transmyocardial revascularization system and method of use
US6514271B2 (en) 1997-10-29 2003-02-04 Kensey Nash Corporation Transmyocardial revascularization system and method of use
US6955681B2 (en) 1997-10-29 2005-10-18 Kensey Nash Corporation Transmyocardial revascularization system and method of use
US7476234B2 (en) 1997-10-29 2009-01-13 Kensey Nash Corporation Transmyocardial revascularization system and method of use
EP1093758A1 (en) * 1999-10-22 2001-04-25 Kaladelfos, George Suture insertion device for the treatment of urinary stress incontinence
WO2001034239A3 (en) * 1999-11-09 2001-12-27 Ronald K Grooters Improved aortic cannula with spoon-shaped lip
DE102009035553A1 (en) * 2009-07-31 2011-02-10 LMU Ludwig-Maximilians-Universität München Surgical insertion instrument for threading suture into hollow needle of commercial cannula to refix injured connective tissues, has adapter tapering cavity end of funnel, so that end is turned to proximal end of cannula

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8130 Withdrawal