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 tissueInfo
- 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
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
Abstract
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)
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 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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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)
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DE (1) | DE4038773A1 (en) |
Cited By (7)
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)
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)
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 |
-
1990
- 1990-12-05 DE DE19904038773 patent/DE4038773A1/en active Granted
Patent Citations (2)
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)
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 |
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DE4038773C2 (en) | 1992-09-10 |
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