WO2010133307A1 - Surgical forceps having a light source - Google Patents

Surgical forceps having a light source Download PDF

Info

Publication number
WO2010133307A1
WO2010133307A1 PCT/EP2010/002886 EP2010002886W WO2010133307A1 WO 2010133307 A1 WO2010133307 A1 WO 2010133307A1 EP 2010002886 W EP2010002886 W EP 2010002886W WO 2010133307 A1 WO2010133307 A1 WO 2010133307A1
Authority
WO
WIPO (PCT)
Prior art keywords
window
light
light source
tissue
jaw part
Prior art date
Application number
PCT/EP2010/002886
Other languages
German (de)
French (fr)
Inventor
Mathias Kraas
Christian Busch
Original Assignee
Olympus Winter & Ibe Gmbh
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 Olympus Winter & Ibe Gmbh filed Critical Olympus Winter & Ibe Gmbh
Publication of WO2010133307A1 publication Critical patent/WO2010133307A1/en

Links

Classifications

    • 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
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00022—Sensing or detecting at the treatment site
    • A61B2017/00084—Temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/2812—Surgical forceps with a single pivotal connection
    • A61B17/282—Jaws
    • A61B2017/2825—Inserts of different material in jaws

Definitions

  • the invention relates to a surgical forceps referred to in the preamble of claim 1 Art.
  • Such forceps are known from DE 44 34 938 C1 and serve to grasp tissue during a surgical operation with the forceps, thereby compressing and thereby supplying heat for tissue coagulation. You can in this way z. B. Close blood vessels.
  • the heat is needed in the area between the grasping jaws of the forceps. It is introduced from one or both jaws.
  • the energy required is supplied in the known construction by laser radiation to the jaw part, wherein the laser radiation is transported in an optical fiber from the shank of the forceps forth to the jaw part and there is blasted through the window into the tissue to be acted upon.
  • the method of tissue heating by light irradiation has advantages over other coagulation methods, for example by high-frequency current application of the tissue or by contact heating on heated surfaces.
  • the object of the present invention is to provide a surgical forceps of the type mentioned with a simpler power supply.
  • the light source arranged in the jaw part and radiating through the window into the tissue is formed with at least one light-emitting diode.
  • Light emitting diodes of recent manufacture are small enough with dimensions in the size range 1 mm to be accommodated in a jaw part of a pair of pliers, even if this has the required very small dimensions of, for example, 5 mm in diameter.
  • Today's LEDs have light outputs that are sufficient for the required tissue warming.
  • the light which can be generated with light-emitting diodes is substantially broadband than laser light and can be chosen in the wavelength range such that it can be used in the body tissue at the desired penetration depth of, for example, 10 nm. B. a few millimeters is sufficiently absorbed.
  • LEDs can be arranged in a simple manner largely arbitrary in a jaw part, ie in particular with the desired beam direction perpendicular to the window.
  • Elaborate Strahlumlenk NASAen required as laser light, are not needed.
  • the energy supply to the jaw part is considerably simplified.
  • Instead of elaborate laser fibers only electrical lines are required to supply the light emitting diodes and in a simple way, even under cramped conditions and also around the joint of a moving jaw part can be laid.
  • the forceps according to the invention can therefore be provided in a structurally very simple manner in both jaw parts with the light heating according to the invention.
  • a plurality of light emitting diodes are provided in a planar arrangement, whereby the Einstrahl St and also the applicable energy can be increased.
  • the window may be smooth on the outside or preferably according to claim 3 have a roughened surface profile, with which the secure hold on grasping tissue is ensured.
  • a temperature sensor is arranged in contact with the window and can thus determine the tissue temperature.
  • a light power control can thus be controlled so that the tissue temperature is controlled to a desired range, so that insufficient or excessive heating can be avoided.
  • the light-emitting diodes are arranged in heat-conducting connection with the window, so that not only the radiated light is supplied to the tissue, but also the resulting heat loss in the LEDs, which must be dissipated anyway for cooling the light emitting diodes.
  • FIG. 1 is a side view of a surgical forceps
  • Fig. 2 is an enlarged section along line 2 - 2 in Fig. 3 and
  • Fig. 3 is a section along line 3 - 3 in Fig. 2nd
  • Fig. 1 shows a side view of the distal end portion of the shaft 2 of a surgical forceps 1, on which with a joint 3 two jaw parts 4, 5, are articulated.
  • an opening and closing movement of the jaw parts 4, 5 can be effected at the proximal end of the shank 2 by a handle (not shown).
  • the forceps 1 tissue should be able to be coagulated.
  • the forceps 1 should be used to grasp blood vessels between the jaws 4 and 5, to compress them by the closing force of the forceps 1 and to coagulate by heat input.
  • a cut end of a blood vessel in which blood is still under pressure can be safely closed.
  • the inner life of the one jaw part 5 is shown in FIGS. 2 and 3.
  • the jaw part 5 in this case has a trough-shaped housing 7, the open top is closed with a window 8.
  • a plurality of light-emitting diodes 9 are arranged, which emit light in the conventional design in each case by a lens 10 at one end.
  • the light emitting diodes 9 are as the comparison of FIGS. 2 and 3 shows, arranged in a two-dimensional field in which in the width of FIG. 2, three diodes are adjacent and in the length of the jaw part 5 z. B. ten or more rows of three LEDs are arranged one behind the other. The LEDs are connected to electrical leads 11, which converge to form a cable 12, through the Shank 2 of the forceps 1 laid to the proximal end where they z. B. with a connector to a power supply device can be connected.
  • the other jaw part 4 can be formed either without a light source or in identical equipment as the jaw part 5 with a light source.
  • the light generated by the LEDs 9 is irradiated by the lenses 10 in the direction perpendicular to the window 8 through this in the adjacent tissue, which is taken between the jaws 4 and 5.
  • the tissue type and selected wavelength of the light it penetrates into the tissue up to several millimeters and can be absorbed to this depth in the tissue to bring in heat. As a result, the tissue is heated and coagulated.
  • the radiation characteristic of the light-emitting diodes 9 can be adapted to the respective geometric requirements by the design of the lenses 10.
  • the heat loss in the LEDs can also be used to heat the tissue. It is discharged through the housing walls of the light-emitting diodes 9, which, like FIGS. 2 and 3, are arranged closely adjacent to each other and to the housing 7 of the jaw part 5.
  • the metal housing 7 conducts the heat from the light emitting diodes 9 to the window 8 or directly to the tissue. As a result, both the LEDs are cooled and the excess energy supplied to the tissue.
  • the window 8 can be made of suitable, permeable to the selected wavelengths of light material, for example of suitable glass. In its outer surface, it is preferably formed such that the coagulated tissue does not stick.
  • the window can be polished for this purpose in its surface or z. B. be coated.
  • the outer surface of the window 8 may be flat, or as shown in FIG. 3, with a roughened surface profile, which may be formed in the embodiment of FIG. 3 pyramidal or sawtooth. The roughened surface secures a firm grip on the tissue so that the piece of tissue grasped by the forceps 1 does not slip out of the forceps.
  • the cable 12 shown in Figs. 1 and 3 is preferably connected to a regulated power supply which requires feedback from a temperature sensor.
  • Fig. 3 shows for this purpose the arrangement of a temperature sensor 13, which is arranged in the place of a diode and is in contact with the inner surface of the window 8.
  • the temperature sensor 13 is connected to one of the lines 11 through the cable 12 to the power source, not shown, for the control thereof.
  • the operation of the LEDs 9, whose light is preferably in the wavelength range of 300 to 1500 ran, can be done in continuous wave or pulsed.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Public Health (AREA)
  • Molecular Biology (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Otolaryngology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Radiation-Therapy Devices (AREA)
  • Laser Surgery Devices (AREA)

Abstract

The invention relates to surgical forceps (1) having two jaw parts (4, 5) displaceable relative to each other, of which at least one (5) comprises a window (8) transparent to light in the side thereof facing the other jaw part (4), a light source (9) shining through said window being disposed within the window (8), characterized in that the light source comprises at least one light-emitting diode (9).

Description

Chirurgische Zange mit Lichtquelle Surgical forceps with light source
Die Erfindung betrifft eine chirurgische Zange der im Oberbegriff des Anspruches 1 genannten Art.The invention relates to a surgical forceps referred to in the preamble of claim 1 Art.
Solche Zangen sind aus der DE 44 34 938 C 1 bekannt und dienen dazu, bei einer chirurgischen Operation mit der Zange Gewebe zu fassen, dadurch zu komprimieren und dabei Wärme zur Gewebekoagulation zuzuführen. Man kann auf diese Weise z. B. Blutgefäße verschließen.Such forceps are known from DE 44 34 938 C1 and serve to grasp tissue during a surgical operation with the forceps, thereby compressing and thereby supplying heat for tissue coagulation. You can in this way z. B. Close blood vessels.
Bei solchen chirurgischen Arbeiten wird die Wärme im Bereich zwischen den zugreifenden Maulteilen der Zange benötigt. Sie wird dabei von einem oder von beiden Maulteilen her eingebracht.In such surgical work, the heat is needed in the area between the grasping jaws of the forceps. It is introduced from one or both jaws.
Die benötigte Energie wird bei der bekannten Konstruktion durch Laserstrahlung dem Maulteil zugeführt, wobei die Laserstrahlung in einer Lichtleitfaser vom Schaft der Zange her bis zum Maulteil transportiert und dort durch das Fenster in das zu beaufschlagende Gewebe gestrahlt wird.The energy required is supplied in the known construction by laser radiation to the jaw part, wherein the laser radiation is transported in an optical fiber from the shank of the forceps forth to the jaw part and there is blasted through the window into the tissue to be acted upon.
Diese bekannte Konstruktion weist erhebliche Nachteile auf. Die Energieleitung durch eine Laserfaser bis zum Bereich des Maulteiles ist aufwändig und störungsanfällig. Die Laserfaser kann leicht brechen und ist beispielsweise nicht geeignet, um durch das Gelenk der Zange hindurch einem bewegten Maulteil zugeführt zu werden. Ferner ist die großflächige Auskoppelung der Laserstrahlung aus der Faser zur Versorgung eines größeren Bereiches des Maulteiles konstruktiv sehr aufwändig, wie die eingangs zitierte Schrift zeigt.This known construction has significant disadvantages. The power line through a laser fiber to the area of the jaw part is complex and prone to failure. The laser fiber can break easily and is not suitable to be fed through the joint of the pliers through a moving jaw part. Furthermore, the large-area decoupling of the laser radiation from the fiber to supply a larger area of the jaw part is structurally very complex, as the above-cited document shows.
Andererseits weist jedoch die Methode der Gewebeaufheizung durch Lichteinstrahlung Vorteile gegenüber anderen Koagulationsmethoden, beispielsweise durch Hochfrequenz-Strombeaufschlagung des Gewebes oder durch Kontaktaufheizung an beheizten Oberflächen, auf.On the other hand, however, the method of tissue heating by light irradiation has advantages over other coagulation methods, for example by high-frequency current application of the tissue or by contact heating on heated surfaces.
Die Aufgabe der vorliegenden Erfindung besteht darin, eine chirurgische Zange der eingangs genannten Art mit einfacherer Energiezufuhr zu schaffen.The object of the present invention is to provide a surgical forceps of the type mentioned with a simpler power supply.
Diese Aufgabe wird mit den Merkmalen des Kennzeichnungsteiles des Anspruches 1 gelöst.This object is achieved with the features of the characterizing part of claim 1.
Erfindungsgemäß ist die in dem Maulteil angeordnete, durch das Fenster in das Gewebe strahlende Lichtquelle mit wenigstens einer Leuchtdiode ausgebildet. Leuchtdioden neuerer Fertigung sind mit Abmessungen im Größenbereich 1 mm klein genug, um in einem Maulteil einer Zange untergebracht zu werden, auch wenn diese die benötigten sehr geringen Abmessungen von beispielsweise 5 mm Durchmesser aufweist. Heutige Leuchtdioden weisen dabei Lichtleistungen auf, die für die erforderliche Gewebeerwärmung ausreichen. Das mit Leuchtdioden erzeugbare Licht ist wesentlich breitbandiger als Laserlicht und kann im Wellenlängenbereich so gewählt werden, dass es im Körpergewebe bei gewünschter Eindringtiefe von z. B. einigen Millimetern ausreichend absorbiert wird. Dabei ergibt sich der Vorteil, dass Leuchtdioden auf einfache Weise weitgehend beliebig in einem Maulteil angeordnet werden können, also insbesondere mit der gewünschten Strahlrichtung senkrecht zum Fenster. Aufwändige Strahlumlenkeinrichtungen wie bei Laserlicht erforderlich, werden nicht benötigt. Insbesondere wird die Energiezufuhr zum Maulteil erheblich vereinfacht. Anstelle aufwändiger Laserfasern sind lediglich elektrische Leitungen erforderlich, die die Leuchtdioden versorgen und die auf einfache Weise auch unter beengten Bedingungen und auch um das Gelenk eines bewegten Maulteiles verlegbar sind. Die erfindungsgemäße Zange kann daher in konstruktiv sehr einfacher Weise in beiden Maulteilen mit der erfindungsgemäßen Lichtheizung versehen sein.According to the invention, the light source arranged in the jaw part and radiating through the window into the tissue is formed with at least one light-emitting diode. Light emitting diodes of recent manufacture are small enough with dimensions in the size range 1 mm to be accommodated in a jaw part of a pair of pliers, even if this has the required very small dimensions of, for example, 5 mm in diameter. Today's LEDs have light outputs that are sufficient for the required tissue warming. The light which can be generated with light-emitting diodes is substantially broadband than laser light and can be chosen in the wavelength range such that it can be used in the body tissue at the desired penetration depth of, for example, 10 nm. B. a few millimeters is sufficiently absorbed. This results in the advantage that LEDs can be arranged in a simple manner largely arbitrary in a jaw part, ie in particular with the desired beam direction perpendicular to the window. Elaborate Strahlumlenkeinrichtungen required as laser light, are not needed. Especially the energy supply to the jaw part is considerably simplified. Instead of elaborate laser fibers only electrical lines are required to supply the light emitting diodes and in a simple way, even under cramped conditions and also around the joint of a moving jaw part can be laid. The forceps according to the invention can therefore be provided in a structurally very simple manner in both jaw parts with the light heating according to the invention.
Vorzugsweise nach Anspruch 2 sind mehrere Leuchtdioden in einer flächigen Anordnung vorgesehen, womit die Einstrahlfläche und auch die aufbringbare Energie vergrößert werden.Preferably, according to claim 2, a plurality of light emitting diodes are provided in a planar arrangement, whereby the Einstrahlfläche and also the applicable energy can be increased.
Das Fenster kann auf der Außenseite glatt sein oder vorzugsweise gemäß Anspruch 3 ein aufgerautes Oberflächenprofil aufweisen, mit dem der sichere Halt auf zu fassendem Gewebe gewährleistet wird.The window may be smooth on the outside or preferably according to claim 3 have a roughened surface profile, with which the secure hold on grasping tissue is ensured.
Vorzugsweise ist gemäss Anspruch 4 ein Temperaturfühler im Kontakt mit dem Fenster angeordnet und kann somit die Gewebetemperatur ermitteln. Eine Lichtleistungsregelung kann damit derart gesteuert werden, dass die Gewebetemperatur auf einen gewünschten Bereich geregelt wird, so dass unzureichende oder zu starke Erhitzungen vermieden werden.Preferably, according to claim 4, a temperature sensor is arranged in contact with the window and can thus determine the tissue temperature. A light power control can thus be controlled so that the tissue temperature is controlled to a desired range, so that insufficient or excessive heating can be avoided.
Vorteilhaft gemäß Anspruch 5 sind die Leuchtdioden in wärmeleitender Verbindung mit dem Fenster angeordnet, so dass nicht nur das abgestrahlte Licht dem Gewebe zugeführt wird, sondern auch die in den Leuchtdioden entstehende Verlustwärme, die ohnehin zur Kühlung der Leuchtdioden abgeführt werden muss.Advantageously, the light-emitting diodes are arranged in heat-conducting connection with the window, so that not only the radiated light is supplied to the tissue, but also the resulting heat loss in the LEDs, which must be dissipated anyway for cooling the light emitting diodes.
In der Zeichnung ist die Erfindung beispielsweise und schematisch dargestellt. Es zeigen:In the drawing, the invention is shown for example and schematically. Show it:
Fig. 1 eine Seitenansicht einer chirurgischen Zange, Fig. 2 einen vergrößerten Schnitt nach Linie 2 - 2 in Fig. 3 und1 is a side view of a surgical forceps, Fig. 2 is an enlarged section along line 2 - 2 in Fig. 3 and
Fig. 3 einen Schnitt nach Linie 3 - 3 in Fig. 2.Fig. 3 is a section along line 3 - 3 in Fig. 2nd
Fig. 1 zeigt in Seitenansicht den distalen Endbereich des Schaftes 2 einer chirurgischen Zange 1, an dem mit einem Gelenk 3 zwei Maulteile 4, 5, angelenkt sind.Fig. 1 shows a side view of the distal end portion of the shaft 2 of a surgical forceps 1, on which with a joint 3 two jaw parts 4, 5, are articulated.
Mit einer durch den hohlen Schaft 2 geführten Zugstange 6 lässt sich von einem nicht dargestellten Handgriff am proximalen Ende des Schaftes 2 her eine Öff- nungs- und Schließbewegung der Maulteile 4, 5, bewirken.With a pull rod 6 guided through the hollow shank 2, an opening and closing movement of the jaw parts 4, 5 can be effected at the proximal end of the shank 2 by a handle (not shown).
Mit der Zange 1 soll Gewebe koaguliert werden können. Insbesondere soll die Zange 1 dazu dienen, Blutgefäße zwischen den Maulteilen 4 und 5 zu fassen, durch die Schließkraft der Zange 1 zu komprimieren und dabei durch Wärmeeinbringung zu koagulieren. So kann ein abgeschnittenes Ende eines Blutgefäßes, in dem noch Blut unter Druck steht, sicher verschlossen werden.With the forceps 1 tissue should be able to be coagulated. In particular, the forceps 1 should be used to grasp blood vessels between the jaws 4 and 5, to compress them by the closing force of the forceps 1 and to coagulate by heat input. Thus, a cut end of a blood vessel in which blood is still under pressure can be safely closed.
Das Innenleben des einen Maulteiles 5 ist in den Fig. 2 und 3 dargestellt. Das Maulteil 5 weist dabei ein wannenförmig geformtes Gehäuse 7 auf, dessen offene Oberseite mit einem Fenster 8 verschlossen ist. Unterhalb des Fensters 8 im Innenraum des Maulteiles 5, der durch das Gehäuse 7 und das Fenster 8 allseitig dichtend umschlossen ist, sind mehrere Leuchtdioden 9 angeordnet, die in üblicher Bauweise jeweils durch eine Linse 10 an ihrem einen Ende Licht abstrahlen.The inner life of the one jaw part 5 is shown in FIGS. 2 and 3. The jaw part 5 in this case has a trough-shaped housing 7, the open top is closed with a window 8. Below the window 8 in the interior of the jaw part 5, which is sealed on all sides by the housing 7 and the window 8, a plurality of light-emitting diodes 9 are arranged, which emit light in the conventional design in each case by a lens 10 at one end.
Die Leuchtdioden 9 sind wie der Vergleich der Fig. 2 und 3 zeigt, in einem flächigen Feld angeordnet, in dem in der Breite gemäß Fig. 2 drei Dioden nebeneinander liegen und in der Länge des Maulteiles 5 z. B. zehn oder mehr Dreierreihen von Leuchtdioden hintereinander angeordnet sind. Die Leuchtdioden sind mit elektrischen Leitungen 11, die zu einem Kabel 12 zusammenlaufen, durch den Schaft 2 der Zange 1 bis zum proximalen Ende verlegt, wo sie z. B. mit einem Anschlussstecker an eine Stromversorgungseinrichtung anschließbar sind.The light emitting diodes 9 are as the comparison of FIGS. 2 and 3 shows, arranged in a two-dimensional field in which in the width of FIG. 2, three diodes are adjacent and in the length of the jaw part 5 z. B. ten or more rows of three LEDs are arranged one behind the other. The LEDs are connected to electrical leads 11, which converge to form a cable 12, through the Shank 2 of the forceps 1 laid to the proximal end where they z. B. with a connector to a power supply device can be connected.
Das andere Maulteil 4 kann entweder ohne Lichtquelle oder in identischer Ausstattung wie das Maulteil 5 mit Lichtquelle ausgebildet sind.The other jaw part 4 can be formed either without a light source or in identical equipment as the jaw part 5 with a light source.
Das von den Leuchtdioden 9 erzeugte Licht wird durch die Linsen 10 in Richtung senkrecht zum Fenster 8 durch dieses in das anliegende Gewebe, das zwischen den Maulteilen 4 und 5 gefasst ist, eingestrahlt. Je nach Gewebeart und gewählter Wellenlänge des Lichtes dringt es bis zu mehreren Millimetern in das Gewebe ein und kann bis zu dieser Tiefe im Gewebe absorbiert werden, um Wärme einzubringen. Dadurch wird das Gewebe aufgeheizt und koaguliert. Die Abstrahlcharakteristik der Leuchtdioden 9 kann durch die Gestaltung der Linsen 10 an die jeweiligen geometrischen Bedürfnisse angepasst werden.The light generated by the LEDs 9 is irradiated by the lenses 10 in the direction perpendicular to the window 8 through this in the adjacent tissue, which is taken between the jaws 4 and 5. Depending on the tissue type and selected wavelength of the light, it penetrates into the tissue up to several millimeters and can be absorbed to this depth in the tissue to bring in heat. As a result, the tissue is heated and coagulated. The radiation characteristic of the light-emitting diodes 9 can be adapted to the respective geometric requirements by the design of the lenses 10.
Die in den Leuchtdioden anfallende Verlustwärme kann ebenfalls zum Aufheizen des Gewebes verwendet werden. Es wird durch die Gehäusewände der Leuchtdioden 9 abgeführt, die wie die Fig. 2 und 3 zeigen, eng benachbart in Kontakt miteinander und mit dem Gehäuse 7 des Maulteiles 5 angeordnet sind. Das aus Metall bestehende Gehäuse 7 leitet die Wärme von den Leuchtdioden 9 zum Fenster 8 bzw. unmittelbar zum Gewebe. Dadurch werden sowohl die Leuchtdioden gekühlt als auch die überschüssige Energie dem Gewebe zugeführt.The heat loss in the LEDs can also be used to heat the tissue. It is discharged through the housing walls of the light-emitting diodes 9, which, like FIGS. 2 and 3, are arranged closely adjacent to each other and to the housing 7 of the jaw part 5. The metal housing 7 conducts the heat from the light emitting diodes 9 to the window 8 or directly to the tissue. As a result, both the LEDs are cooled and the excess energy supplied to the tissue.
Das Fenster 8 kann aus geeignetem, für die gewählten Lichtwellenlängen durchlässigem Material bestehen, beispielsweise aus geeignetem Glas. In seiner äußeren Oberfläche ist es vorzugsweise derart ausgebildet, dass das koagulierte Gewebe nicht anklebt. Das Fenster kann zu diesem Zweck in seiner Oberfläche poliert oder z. B. beschichtet sein. Die äußere Oberfläche des Fensters 8 kann eben sein, oder wie Fig. 3 zeigt, mit einem gerauten Oberflächenprofil, das im Ausführungsbeispiel der Fig. 3 pyramidenförmig oder sägezahnförmig ausgebildet sein kann. Die aufgeraute Oberfläche sichert einen festen Griff auf dem Gewebe, so dass das von der Zange 1 ergriffene Gewebestück nicht aus der Zange rutscht.The window 8 can be made of suitable, permeable to the selected wavelengths of light material, for example of suitable glass. In its outer surface, it is preferably formed such that the coagulated tissue does not stick. The window can be polished for this purpose in its surface or z. B. be coated. The outer surface of the window 8 may be flat, or as shown in FIG. 3, with a roughened surface profile, which may be formed in the embodiment of FIG. 3 pyramidal or sawtooth. The roughened surface secures a firm grip on the tissue so that the piece of tissue grasped by the forceps 1 does not slip out of the forceps.
Das in den Fig. 1 und 3 dargestellte Kabel 12 wird vorzugsweise an eine geregelte Stromversorgung angeschlossen, die eine Rückmeldung von einem Temperatursensor benötigt. Fig. 3 zeigt zu diesem Zweck die Anordnung eines Temperaturfühlers 13, der am Platz einer Diode angeordnet ist und im Kontakt mit der Innenfläche des Fensters 8 steht. Der Temperaturfühler 13 ist mit einer der Leitungen 11 durch das Kabel 12 an die nicht dargestellte Stromquelle zu deren Steuerung angeschlossen.The cable 12 shown in Figs. 1 and 3 is preferably connected to a regulated power supply which requires feedback from a temperature sensor. Fig. 3 shows for this purpose the arrangement of a temperature sensor 13, which is arranged in the place of a diode and is in contact with the inner surface of the window 8. The temperature sensor 13 is connected to one of the lines 11 through the cable 12 to the power source, not shown, for the control thereof.
Der Betrieb der Leuchtdioden 9, deren Licht bevorzugt im Wellenlängenbereich von 300 bis 1500 ran liegt, kann im Dauerstrich oder gepulst erfolgen. The operation of the LEDs 9, whose light is preferably in the wavelength range of 300 to 1500 ran, can be done in continuous wave or pulsed.

Claims

PATENTANSPRÜCHE: CLAIMS:
1. Chirurgische Zange (1) mit zwei relativ zueinander bewegbaren Maulteilen (4, 5), von denen mindestens eines (5) in seiner dem anderen Maulteil (4) zugewandten Seite ein lichtdurchlässiges Fenster (8) aufweist, wobei innerhalb des Fensters (8) eine durch dieses strahlende Lichtquelle (9) angeordnet ist, dadurch gekennzeichnet, dass die Lichtquelle wenigstens eine Leuchtdiode (9) aufweist.1. Surgical forceps (1) with two mutually movable jaws (4, 5), of which at least one (5) in its the other jaw part (4) side facing a translucent window (8), wherein within the window (8 ) is arranged by this radiating light source (9), characterized in that the light source has at least one light emitting diode (9).
2. Zange nach Anspruch 1, dadurch gekennzeichnet, dass die Lichtquelle als parallel zum Fenster (8) angeordnete flächige Anordnung von Leuchtdioden (9) ausgebildet ist.2. Pliers according to claim 1, characterized in that the light source as parallel to the window (8) arranged planar arrangement of light-emitting diodes (9) is formed.
3. Zange nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass das Fenster (8) auf der Außenseite mit gerautem Oberflächenprofil versehen ist.3. Pliers according to one of claims 1 or 2, characterized in that the window (8) is provided on the outside with a roughened surface profile.
4. Zange nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass ein Temperaturfühler (13) in Kontakt mit der Innenseite des Fensters (8) angeordnet ist. 4. Pliers according to one of claims 1 to 3, characterized in that a temperature sensor (13) is arranged in contact with the inside of the window (8).
5. Zange nach einem der Ansprüche 1 - 4, dadurch gekennzeichnet, dass die Leuchtdioden (9) in Wärme leitender Verbindung mit dem Fenster (8) angeordnet sind. 5. Pliers according to one of claims 1 - 4, characterized in that the light-emitting diodes (9) are arranged in heat-conducting connection with the window (8).
PCT/EP2010/002886 2009-05-19 2010-05-11 Surgical forceps having a light source WO2010133307A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009021981A DE102009021981A1 (en) 2009-05-19 2009-05-19 Surgical forceps with light source
DE102009021981.1 2009-05-19

Publications (1)

Publication Number Publication Date
WO2010133307A1 true WO2010133307A1 (en) 2010-11-25

Family

ID=42350191

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/002886 WO2010133307A1 (en) 2009-05-19 2010-05-11 Surgical forceps having a light source

Country Status (2)

Country Link
DE (1) DE102009021981A1 (en)
WO (1) WO2010133307A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9078683B2 (en) 2012-06-18 2015-07-14 Lumenis Ltd. Systems and methods for a multifunction surgical apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5468238A (en) * 1993-06-11 1995-11-21 Ethicon, Inc. Endoscopic laser instrument
DE4434938C1 (en) * 1994-09-30 1996-02-01 Jenoptik Technologie Gmbh Tongs for laser radiation application in biological tissue
EP0741996A2 (en) * 1995-05-08 1996-11-13 Ethicon Endo-Surgery, Inc. Surgical tissue treating device with locking mechanism
DE19953743A1 (en) * 1999-11-09 2001-06-13 Storz Karl Gmbh & Co Kg Light applicator for selective photocoagulation in blood vessels containing chromophores by localized irradation, used for treating diseased sites supplied with blood, e.g. in the uterus for menorrhagia treatment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5468238A (en) * 1993-06-11 1995-11-21 Ethicon, Inc. Endoscopic laser instrument
DE4434938C1 (en) * 1994-09-30 1996-02-01 Jenoptik Technologie Gmbh Tongs for laser radiation application in biological tissue
EP0741996A2 (en) * 1995-05-08 1996-11-13 Ethicon Endo-Surgery, Inc. Surgical tissue treating device with locking mechanism
DE19953743A1 (en) * 1999-11-09 2001-06-13 Storz Karl Gmbh & Co Kg Light applicator for selective photocoagulation in blood vessels containing chromophores by localized irradation, used for treating diseased sites supplied with blood, e.g. in the uterus for menorrhagia treatment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9078683B2 (en) 2012-06-18 2015-07-14 Lumenis Ltd. Systems and methods for a multifunction surgical apparatus

Also Published As

Publication number Publication date
DE102009021981A1 (en) 2010-11-25

Similar Documents

Publication Publication Date Title
DE4434938C1 (en) Tongs for laser radiation application in biological tissue
DE69025402T2 (en) THERAPEUTIC DEVICE WITH LASER BEAM
DE69825447T2 (en) DEVICE FOR DERMATOLOGICAL TREATMENT
DE4228993C2 (en) Surgical laser device
EP3160377A1 (en) Electrosurgical instrument and jaw part for same
DE102007053359B3 (en) Surgical instrument
EP3064123B1 (en) Endoscope tube
DE19825284A1 (en) Cauterization tool for endoscope used during surgery for ulcer, cancer treatment
DE9321497U1 (en) Therapeutic electromagnetic treatment
DE102006034590A1 (en) Medical instrument e.g. laparoscopic instrument, for laparoscopic surgery, has shaft, arranged within tube, having one end displaceable along adjusting path and limited by attachment of stops, where path is adjusted at proximal end of tube
EP3494861B1 (en) Device with a working channel guide element
EP3876819B1 (en) Endoscopic instrument
DE3837048A1 (en) LASER DEVICE
WO2009153015A1 (en) Surgical forceps with blade and return spring
DE60115770T2 (en) Medical irradiation device
DE2550693C2 (en) Coagulation forceps
EP2613726B1 (en) Surgical instrument
WO2010133307A1 (en) Surgical forceps having a light source
DE68926221T2 (en) MEDICAL ARRANGEMENT FOR THE APPLICATION OF LOCALIZED LIGHT AND LOCALIZED HEAT OF HIGH INTENSITY, IN PARTICULAR TO DESTROY THE ENDOMETRIUM
DE202007015547U1 (en) Surgical instrument
DE202007013012U1 (en) Surgical instrument
DE102015008872A1 (en) Tongue-free jaw mechanism
EP3427681A1 (en) Medical instrument for removing tissue
EP3909528B1 (en) Tool insert
EP4046583A1 (en) Electrosurgical instrument and contact body for electrosurgical instrument

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10721968

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10721968

Country of ref document: EP

Kind code of ref document: A1