DE4038773A1 - Ultrasonic phako probe for cataract operation - has hollow suction needle connected to ultrasonic source and withdrawing natural eye lens tissue - Google Patents

Ultrasonic phako probe for cataract operation - has hollow suction needle connected to ultrasonic source and withdrawing natural eye lens tissue

Info

Publication number
DE4038773A1
DE4038773A1 DE19904038773 DE4038773A DE4038773A1 DE 4038773 A1 DE4038773 A1 DE 4038773A1 DE 19904038773 DE19904038773 DE 19904038773 DE 4038773 A DE4038773 A DE 4038773A DE 4038773 A1 DE4038773 A1 DE 4038773A1
Authority
DE
Germany
Prior art keywords
needle
ultrasonic
suction needle
suction
probe according
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
Application number
DE19904038773
Other languages
German (de)
Other versions
DE4038773C2 (en
Inventor
Dieter Dr Med Klaas
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 DE19904038773 priority Critical patent/DE4038773A1/en
Publication of DE4038773A1 publication Critical patent/DE4038773A1/en
Application granted granted Critical
Publication of DE4038773C2 publication Critical patent/DE4038773C2/de
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007—Methods or devices for eye surgery
    • A61F9/008—Methods or devices for eye surgery using laser
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007—Methods or devices for eye surgery
    • A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
    • A61F9/00745—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments using mechanical vibrations, e.g. ultrasonic
    • 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
    • A61B18/22—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 the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
    • A61B18/26—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 the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor for producing a shock wave, e.g. laser lithotripsy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22072—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an instrument channel, e.g. for replacing one instrument by the other
    • A61B2017/22074—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an instrument channel, e.g. for replacing one instrument by the other the instrument being only slidable in a channel, e.g. advancing optical fibre through a channel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007—Methods or devices for eye surgery
    • A61F9/008—Methods or devices for eye surgery using laser
    • A61F2009/00861—Methods or devices for eye surgery using laser adapted for treatment at a particular location
    • A61F2009/0087—Lens
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007—Methods or devices for eye surgery
    • A61F9/008—Methods or devices for eye surgery using laser
    • A61F2009/00885—Methods or devices for eye surgery using laser for treating a particular disease
    • A61F2009/00887—Cataract

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

An optical fibre (2) is connected to a laser beam source (1). The light emergent end (3) of this fibre is slidable in the region of the clip (4) of the suction needle (5). The optical fibre is guided along the needle. The fibre is slidably guided in an inner guide tube (7) of the needle. The latter has an inclined edge tip. The region offset backwards (8) is bowed inwards towards the axis of the needle. Pref., the light emergent end of the fibre is slidable in the needle lip region (9) that extends furthest forward. The laser beam is measured so that the drawn off lens tissue is emulsified. the laser source is a holmium-YAG laser.

Description

Die Erfindung betrifft eine Ultraschall-Phakosonde zum Absaugen von Gewebe der natürlichen Augenlinse bei einer Kataraktoperation. Eine derartige Sonde besitzt eine hohle Absaugnadel, die an eine Ultraschallquelle angeschlossen ist, so daß insbesondere im Bereich der Nadelspitze Ultra­ schallwellen, die sich in das Gewebe der abzusaugenden Linse fortsetzen, erzeugt werden. Hierdurch wird das Absaugen des getrübten Linsengewebes durch die hohle Absaugnadel er­ leichtert.The invention relates to an ultrasonic phaco probe for Sucking off tissue from the natural lens of an eye Cataract surgery. Such a probe has a hollow one Suction needle connected to an ultrasound source is, so that especially in the area of the needle tip Ultra sound waves that are in the tissue of the suction Continue lens, be created. This will suction of the clouded lens tissue through the hollow suction needle relieved.

Aufgabe der Erfindung ist es, die eingangs genannte Ultra­ schall-Phakosonde dahingehend zu verbessern, daß ein noch höherer Wirkungsgrad beim Absaugen des Augenlinsengewebes erreicht wird.The object of the invention is the Ultra mentioned sound phaco probe to improve that a still higher efficiency when suctioning off the lens tissue is achieved.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß ein Licht abgebendes Ende eines an eine Laserstrahlquelle ange­ schlossenen Lichtleiters in den Bereich der Nadelspitze der Absaugnadel führbar ist.This object is achieved in that a End emitting light is attached to a laser beam source closed light guide in the area of the needle tip Suction needle is feasible.

Der insbesondere als Glasfaser ausgebildete Lichtleiter gibt an seinem in dem Bereich der Nadelspitze liegenden Ende Laserlicht ab, wodurch ein Plasma entsteht, das das Augen­ linsengewebe emulsifiziert. In Zusammenwirkung mit den im Linsengewebe erzeugten Ultraschallwellen erreicht man einen erhöhten Wirkungsgrad beim Absaugen des Linsengewebes. The light guide, in particular designed as glass fiber gives at its end in the area of the needle tip Laser light off, which creates a plasma that the eyes lens tissue emulsified. In cooperation with the im Ultrasound waves generated by lens tissue are achieved an increased efficiency when suctioning the lens tissue.  

Der Lichtleiter wird in bevorzugter Weise verschiebbar an der Absaugnadel geführt. Das Laserlicht abgebende Ende kann immer dann zurückgezogen werden, wenn die Nadel­ spitze in die Nähe von Augenbestandteilen kommt, die durch das Laserlicht nicht beeinflußt werden sollen. Hierbei kann es sich insbesondere um die Linsenkapsel handeln. Immer dann, wenn daher die Nadelspitze in die Nähe der Linsenkapsel kommt, wird das Laserlicht abgebende Ende des Lichtleiters zurückgezogen. Wenn die Nadelspitze nur von abzusaugendem Linsengewebe umgeben ist, läßt sich das Laserlicht abgebende Ende des Lichtleiters wieder bis zur Spitze der Absaugnadel vorschieben. Hierdurch wird gewährleistet, daß nur das ab­ zusaugende eingetrübte Linsengewebe durch das Laserlicht beeinflußt wird.The light guide is preferably displaceable the suction needle. The end emitting the laser light can be withdrawn whenever the needle tip comes near eye components that come through the laser light should not be affected. Here can it is in particular the lens capsule. Always then, therefore if the needle tip is near the lens capsule comes, the laser light emitting end of the light guide withdrawn. If the needle tip is only of suction Surrounded by lens tissue, the laser light can be emitted End of the light guide again up to the tip of the suction needle advance. This ensures that only that sucking in opaque lens tissue by the laser light being affected.

In bevorzugter Weise ist der Lichtleiter in einem inneren Führungsrohr an der Absaugnadel in Längsrichtung geführt. Die Ausgangsleistung des Laserstrahls ist so bemessen, daß die gewünschte Emulsifizierung des abzusaugenden Linsen­ gewebes erreicht wird.The light guide is preferably in an interior Guide tube on the suction needle in the longitudinal direction. The output power of the laser beam is such that the desired emulsification of the lens to be extracted tissue is reached.

Zur Erhöhung der Turbulenzen vor der Nadelspitze kann die an ihrer Spitze abgeschrägte Absaugnadel an dem zurück­ versetzten Nadelspitzenbereich zur Nadelachse hin einwärts gebogen sein. Man erreicht dann im Bereich der abgeschrägten Nadelspitze eine Durchmesserverringerung der Eingangsöffnung, durch die auch eine erhöhte Saugwirkung im Nadelspitzen­ bereich erreicht wird.To increase the turbulence in front of the needle tip, the at its tip beveled suction needle on the back offset needle tip area towards the needle axis inwards be curved. One then reaches the area of the beveled Needle tip a reduction in diameter of the entrance opening, through which also an increased suction effect in the needle tips area is reached.

Anhand der beiliegenden Figur wird an einem Ausführungs­ beispiel die Erfindung noch näher erläutert. Using the attached figure is an execution example, the invention explained in more detail.  

In der Figur sind schematisch und in vergrößerter Darstel­ lung die wesentlichen Bestandteile einer Ultraschall-Phako­ sonde, die ein Ausführungsbeispiel der Erfindung ist, ge­ zeigt. Von dieser Ultraschall-Phakosonde ist in der Figur eine Absaugnadel 5 dargestellt. Im Bereich ihrer Nadelspitze 4, welche einen abgeschrägten Verlauf hat, ist die Absaug­ nadel 5 im zurückversetzten Nadelspitzenbereich 8 (in der Figur oben liegender Bereich) in Richtung auf die Längsachse der Absaugnadel 5 nach innen gebogen. Auf diese Weise ergibt sich eine verringerte Einsaugöffnung an der Nadelspitze 4.In the figure, the essential components of an ultrasonic phaco probe, which is an embodiment of the invention, are shown schematically and in an enlarged representation. A suction needle 5 of this ultrasonic phaco probe is shown in the figure. In the area of their needle tip 4 , which has a bevelled course, the suction needle 5 is bent in the recessed needle tip area 8 (in the figure area above) in the direction of the longitudinal axis of the suction needle 5 . This results in a reduced suction opening at the needle tip 4 .

An der Unterseite der Absaugnadel 5 im vordersten Nadel­ spitzenbereich 9 befindet sich ein Laserlicht abgebendes Ende 3 eines Lichtleiters 2. Dieser Lichtleiter 2 ist in einem inneren Führungsrohr 7 in Längsrichtung der Absaug­ nadel 5 geführt. Um das Laserlicht abgebende Ende 3 voll­ ständig in das innere Führungsrohr 7 zurückzuverschieben, ist der Lichtleiter 2 im Bereich eines Handgriffes 7 der dargestellten Ultraschall-Phakosonde fest mit einem ver­ schiebbaren Griffstück 12 verbunden. Beim Verschieben des Griffstückes 12 in Richtung eines Doppelpfeiles A kann das Laserlicht abgebende Ende 3 aus der vorderen Öffnung des Führungrohres 7 herausgeschoben werden, wie es in der Figur dargestellt ist. In dieser Stellung wirkt das vom Ende 3 abgegebene Laserlicht auf das in die Absaugnadel 5 einzu­ saugende Linsengewebe emulsifizierend ein.On the underside of the suction needle 5 in the foremost needle tip area 9 there is a laser light-emitting end 3 of a light guide 2 . This light guide 2 is guided in an inner guide tube 7 in the longitudinal direction of the suction needle 5 . In order to continuously move the laser light emitting end 3 back into the inner guide tube 7 , the light guide 2 is firmly connected in the region of a handle 7 of the illustrated ultrasound phaco probe with a displaceable handle 12 . When moving the handle 12 in the direction of a double arrow A, the laser light-emitting end 3 can be pushed out of the front opening of the guide tube 7 , as shown in the figure. In this position, the laser light emitted by the end 3 has an emulsifying effect on the lens tissue to be sucked into the suction needle 5 .

Wenn die Nadelspitze 4 in den Bereich der Linsenkapsel kommt, kann das Laserlicht abgebende Ende 3 des Lichtleiters 2 im Führungsrohr 7 durch das verschiebbare Griffstück 12 vollständig eingezogen werden, so daß keine Einwirkung des abgegebenen Laserlichts mehr auf das Gewebe erfolgt, da das Licht durch das vordere Führungsrohrstück abgeschirmt wird. When the needle tip 4 comes into the area of the lens capsule, the laser light-emitting end 3 of the light guide 2 in the guide tube 7 can be completely retracted by the displaceable handle 12 , so that the emitted laser light no longer acts on the tissue, since the light passes through the front guide tube piece is shielded.

Im Bereich des Handgriffes 10 ist eine Ultraschallquelle 6 vorgesehen. Die von der Ultraschallquelle 6 erzeugten Ultra­ schallwellen werden von der Absaugnadel 5 zur Nadelspitze 4 weitergeleitet und dort in das abzusaugende Linsengewebe induziert. In Zusammenwirkung mit der emulsifizierenden Wirkung des vom Ende 3 des Lichtleiters 2 abgegebenen Laser­ lichts wird eine erhöhte Ansaugwirkung auf das abzusaugende Linsengewebe erreicht. In Richtung eines Pfeiles B wird das Linsengewebe von der nicht näher dargestellten Absaugeinrich­ tung in bekannter Weise weiterbefördert.An ultrasound source 6 is provided in the area of the handle 10 . The ultrasound waves generated by the ultrasound source 6 are passed on by the suction needle 5 to the needle tip 4 and induced there in the lens tissue to be suctioned off. In cooperation with the emulsifying effect of the laser light emitted from the end 3 of the light guide 2 , an increased suction effect on the lens tissue to be suctioned off is achieved. In the direction of an arrow B, the lens tissue is conveyed on by the suction device, not shown, in a known manner.

Der Lichtleiter 2 ist durch einen flexiblen Kunststoff­ mantel 11, welcher auch die Verschiebebewegung in Richtung des Doppelpfeiles A ausgleicht, zu einer Laserstrahlquelle 1 weitergeführt. Die Laserstrahlquelle 1 kann als Holmium-Yag- Laser ausgebildet sein. Die Leistung dieses Lasers ist so eingestellt, daß durch das an dem Lichtleiterende 3 abgege­ bene Laserlicht das abzusaugende Linsengewebe emulsifiziert wird.The light guide 2 is continued by a flexible plastic sheath 11 , which also compensates for the displacement movement in the direction of the double arrow A, to a laser beam source 1 . The laser beam source 1 can be designed as a holmium-yag laser. The power of this laser is set so that the lens tissue to be extracted is emulsified by the laser light emitted at the light guide end 3 .

Der Lichtleiter 2 ist bevorzugt als Glasfaser ausgebildet, wobei der Faserkern einen Durchmesser von 0,2 mm und der Gesamtdurchmesser der Glasfaser 0,3 mm betragen. Das Füh­ rungsrohr 7 kann einen Innendurchmesser von 0,35 mm auf­ weisen. Der Innendurchmesser der hohlen Absaugnadel 5 be­ trägt etwa 2,3 mm. Die Ansaugöffnung an der Nadelspitze 4 beträgt etwa 2 mm. Das Material ds Ansaugrohres 5 und des Führungskanals 7 kann Titan oder ein Keramik sein, welche als Materialien für Phakosonden bekannt sind. Die Verschie­ bebewegung für das Laserlicht abgebende Ende 3 kann auch so dimensioniert sein, daß das Ende 3 bis zum vordersten Nadelspitzenbereich 9 vorgeschoben werden kann, wobei die Möglichkeit verbleibt, das Ende 3 ganz in das Führungsrohr 7 wieder zurückzuziehen.The light guide 2 is preferably designed as a glass fiber, the fiber core having a diameter of 0.2 mm and the overall diameter of the glass fiber 0.3 mm. The guide tube 7 may have an inside diameter of 0.35 mm. The inner diameter of the hollow suction needle 5 be about 2.3 mm. The suction opening at the needle tip 4 is approximately 2 mm. The material of the suction pipe 5 and the guide channel 7 can be titanium or a ceramic, which are known as materials for phacoons. The displacement movement for the laser light emitting end 3 can also be dimensioned such that the end 3 can be advanced to the foremost needle tip region 9 , with the possibility of retracting the end 3 completely into the guide tube 7 again.

Claims (7)

1. Ultraschall-Phakosonde zum Absaugen von Gewebe der natürlichen Augenlinse bei einer Kataraktoperation mit einer hohlen Absaugnadel, die an eine Ultraschallquelle angeschlossen ist, dadurch gekennzeichnet, daß ein Licht abgebendes Ende (3) eines an eine Laserstrahlquelle (1) angeschlossenen Lichtleiters (2) in den Bereich der Nadel­ spitze (4) der Absaugnadel (5) verschiebbar ist. 1. ultrasonic phaco probe for aspirating tissue of the natural eye lens, characterized in cataract surgery with a hollow suction needle, which is connected to an ultrasound source, that a light emitting end (3) a printer connected to a laser beam source (1) the light guide (2) in the area of the needle tip ( 4 ) of the suction needle ( 5 ) is displaceable. 2. Ultraschall-Phakosonde nach Anspruch 1, dadurch gekenn­ zeichnet, daß der Lichtleiter (2) an der Absaugnadel (5) längs geführt ist.2. Ultrasonic phaco probe according to claim 1, characterized in that the light guide ( 2 ) on the suction needle ( 5 ) is guided longitudinally. 3. Ultraschall-Phakosonde nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Lichtleiter (2) in einem inneren Führungsrohr (7) der Absaugnadel (5) verschiebbar geführt ist.3. Ultrasonic phaco probe according to claim 1 or 2, characterized in that the light guide ( 2 ) in an inner guide tube ( 7 ) of the suction needle ( 5 ) is slidably guided. 4. Ultraschall-Phakosonde nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Absaugnadel (5) eine abge­ schrägte Spitze aufweist und das Licht abgebende Ende (3) des Lichtleiters (2) in den Nadelspitzenbereich (9) ver­ schiebbar ist, der sich am weitesten nach vorne erstreckt.4. Ultrasonic phaco probe according to one of claims 1 to 3, characterized in that the suction needle ( 5 ) has a beveled tip and the light-emitting end ( 3 ) of the light guide ( 2 ) in the needle tip region ( 9 ) can be pushed ver, which extends the farthest forward. 5. Ultraschall-Phakosonde nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der zurückversetzte Nadel­ spitzenbereich (8) zur Nadelachse hin einwärts gebogen ist.5. Ultrasonic phaco probe according to one of claims 1 to 4, characterized in that the set-back needle tip region ( 8 ) is bent inwards towards the needle axis. 6. Ultraschall-Phakosonde nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Ausgangsleistung des Laser­ strahls so bemessen ist, daß das abzusaugende Linsengewebe emulsifiziert wird.6. Ultrasound phaco probe according to one of claims 1 to 5, characterized in that the output power of the laser is dimensioned so that the lens tissue to be extracted is emulsified. 7. Ultraschall-Phakosonde nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Laserstrahlquelle (1) ein Holmium-Yag-Laser ist.7. Ultrasonic phaco probe according to one of claims 1 to 6, characterized in that the laser beam source ( 1 ) is a holmium-yag laser.
DE19904038773 1990-12-05 1990-12-05 Ultrasonic phako probe for cataract operation - has hollow suction needle connected to ultrasonic source and withdrawing natural eye lens tissue Granted DE4038773A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19904038773 DE4038773A1 (en) 1990-12-05 1990-12-05 Ultrasonic phako probe for cataract operation - has hollow suction needle connected to ultrasonic source and withdrawing natural eye lens tissue

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19904038773 DE4038773A1 (en) 1990-12-05 1990-12-05 Ultrasonic phako probe for cataract operation - has hollow suction needle connected to ultrasonic source and withdrawing natural eye lens tissue

Publications (2)

Publication Number Publication Date
DE4038773A1 true DE4038773A1 (en) 1992-06-11
DE4038773C2 DE4038773C2 (en) 1992-09-10

Family

ID=6419642

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19904038773 Granted DE4038773A1 (en) 1990-12-05 1990-12-05 Ultrasonic phako probe for cataract operation - has hollow suction needle connected to ultrasonic source and withdrawing natural eye lens tissue

Country Status (1)

Country Link
DE (1) DE4038773A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994022402A1 (en) * 1993-03-31 1994-10-13 Davis Peter L Phacoemulsification method and tip
WO2001015641A1 (en) * 1999-08-31 2001-03-08 Austrian Laser Produktion Und Handel Gmbh Laser scalpel
DE10118464A1 (en) * 2001-04-07 2002-10-10 Zeiss Carl Jena Gmbh Electrical probe, preferably for eye surgery, has insulator as light conductor optically connected to light generating unit, electrodes with contacts for connecting electrical supply unit
CN1110292C (en) * 1997-10-16 2003-06-04 北京中科电气高技术公司 Cataract ultrasonic emulsifying instrument
US20140081252A1 (en) * 2012-09-14 2014-03-20 The Spectranetics Corporation Tissue slitting methods and systems
WO2016069179A1 (en) * 2014-10-29 2016-05-06 Novartis Ag Vitrectomy probe with an optical fiber scanner
US10835279B2 (en) 2013-03-14 2020-11-17 Spectranetics Llc Distal end supported tissue slitting apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4407949B4 (en) * 1994-03-09 2006-12-07 Klaas, Dieter, Dr.med. Probe for aspirating eye tissue
DE19711675A1 (en) * 1997-03-20 1998-10-01 Fraunhofer Ges Forschung Surgical hand instrument for removing tissue material in e.g. cataract surgery

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4816018A (en) * 1985-08-02 1989-03-28 Ultramed Corporation Ultrasonic probe tip
DE3822011A1 (en) * 1988-06-30 1990-01-11 Geuder Hans Gmbh OpHthalmic surgical instrument for aspirating lens residues and laser phacocataract system with two such instruments

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4816018A (en) * 1985-08-02 1989-03-28 Ultramed Corporation Ultrasonic probe tip
DE3822011A1 (en) * 1988-06-30 1990-01-11 Geuder Hans Gmbh OpHthalmic surgical instrument for aspirating lens residues and laser phacocataract system with two such instruments

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994022402A1 (en) * 1993-03-31 1994-10-13 Davis Peter L Phacoemulsification method and tip
CN1110292C (en) * 1997-10-16 2003-06-04 北京中科电气高技术公司 Cataract ultrasonic emulsifying instrument
WO2001015641A1 (en) * 1999-08-31 2001-03-08 Austrian Laser Produktion Und Handel Gmbh Laser scalpel
DE10118464A1 (en) * 2001-04-07 2002-10-10 Zeiss Carl Jena Gmbh Electrical probe, preferably for eye surgery, has insulator as light conductor optically connected to light generating unit, electrodes with contacts for connecting electrical supply unit
US9949753B2 (en) 2012-09-14 2018-04-24 The Spectranetics Corporation Tissue slitting methods and systems
US9413896B2 (en) 2012-09-14 2016-08-09 The Spectranetics Corporation Tissue slitting methods and systems
US9724122B2 (en) 2012-09-14 2017-08-08 The Spectranetics Corporation Expandable lead jacket
US20140081252A1 (en) * 2012-09-14 2014-03-20 The Spectranetics Corporation Tissue slitting methods and systems
US10368900B2 (en) 2012-09-14 2019-08-06 The Spectranetics Corporation Tissue slitting methods and systems
US10531891B2 (en) * 2012-09-14 2020-01-14 The Spectranetics Corporation Tissue slitting methods and systems
US11596435B2 (en) 2012-09-14 2023-03-07 Specrtranetics Llc Tissue slitting methods and systems
US10835279B2 (en) 2013-03-14 2020-11-17 Spectranetics Llc Distal end supported tissue slitting apparatus
US11925380B2 (en) 2013-03-14 2024-03-12 Spectranetics Llc Distal end supported tissue slitting apparatus
WO2016069179A1 (en) * 2014-10-29 2016-05-06 Novartis Ag Vitrectomy probe with an optical fiber scanner
US10238543B2 (en) 2014-10-29 2019-03-26 Novartis Ag Vitrectomy probe with an optical fiber scanner
AU2015339892B2 (en) * 2014-10-29 2020-02-20 Alcon Inc. Vitrectomy probe with an optical fiber scanner

Also Published As

Publication number Publication date
DE4038773C2 (en) 1992-09-10

Similar Documents

Publication Publication Date Title
DE4407949B4 (en) Probe for aspirating eye tissue
DE4012882C2 (en)
DE2950976C2 (en) Device for finding, observing and removing an obstruction in a tube
EP2288285B1 (en) Endoscope having a shaft tube and optics
EP0910317B1 (en) Surgical instrument for mechanical removal of bone cement
US4011869A (en) Tubular cutting instrument
DE19748579C2 (en) Endoscopic instrument
DE19714475C1 (en) Unit for the removal of glass components from the eye
EP0827711B1 (en) Endoscopic surgical apparatus
DE4038773A1 (en) Ultrasonic phako probe for cataract operation - has hollow suction needle connected to ultrasonic source and withdrawing natural eye lens tissue
DE4307642C1 (en) Medical instrument for dispersal of deposits in arteries and/or veins - has partly hollow body with basic body to which cutters are attached having cutting edges pointing in draw direction
DE10310614A1 (en) Resectoscope for suctioning tissue parts, has supply channel in cross-section extending parallel to outer shank with cross-sectional area smaller than that of suction channel
DE2424749B2 (en) ENDOSCOPE WITH A CHANNEL FOR INSERTING A FORCEPS AND SUCTIONING A LIQUID SUBSTANCE
DE3542667A1 (en) Device for the removal of body stones
DE2821264A1 (en) LASER SCALPEL
DE102007049239A1 (en) Endo probe for microsurgery i.e. eye surgery, has optical fibers, into which laser light is directly injected, and casing, where coupling of illuminating light is provided in casing or transparent form element over optical element
DE2636510A1 (en) ENDOSCOPE, IN PARTICULAR RECTOSCOPE
DE102014118003A1 (en) Endoscopic instrument and endoscopic instrument system
AT410055B (en) LASER SCALPEL
WO2015135544A1 (en) Surgical instrument
DE102014118575B4 (en) Surgical instrument
DE4416656A1 (en) Method for creating a venous access and device for carrying out the method
DE19959698A1 (en) Handpiece for cosmetic or medical treatment
DE10138984A1 (en) Appliance for treatment of glaucoma controls treatment beam based on measurement beam reflected light from Schlems canal
DE4237154C1 (en) Method and device for selective cutting of biological tissue

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee